bump to 0.5.8

add koofr
bump to 0.5.7
2024-06-18 23:10:18 +08:00 · 2024-06-18 23:05:30 +08:00 · 2024-06-17 00:15:59 +08:00 · 2024-06-17 00:15:33 +08:00 · 2024-06-16 20:07:49 +08:00 · 2024-06-16 19:50:28 +08:00
86 changed files with 20229 additions and 627 deletions
@@ -1,3 +1,15 @@
 DROPBOX_APP_KEY=
 ONEDRIVE_CLIENT_ID=
 ONEDRIVE_AUTHORITY=https://
+REMOTELYSAVE_WEBSITE=http://127.0.0.1:46683
+REMOTELYSAVE_CLIENT_ID=cli-xxx
+GOOGLEDRIVE_CLIENT_ID=xxx.apps.googleusercontent.com
+GOOGLEDRIVE_CLIENT_SECRET=GOCSPX-sss
+BOX_CLIENT_ID=
+BOX_CLIENT_SECRET=
+PCLOUD_CLIENT_ID=
+PCLOUD_CLIENT_SECRET=
+YANDEXDISK_CLIENT_ID=
+YANDEXDISK_CLIENT_SECRET=
+KOOFR_CLIENT_ID=
+KOOFR_CLIENT_SECRET=
@@ -19,6 +19,18 @@ jobs:
      DROPBOX_APP_KEY: ${{secrets.DROPBOX_APP_KEY}}
      ONEDRIVE_CLIENT_ID: ${{secrets.ONEDRIVE_CLIENT_ID}}
      ONEDRIVE_AUTHORITY: ${{secrets.ONEDRIVE_AUTHORITY}}
+      REMOTELYSAVE_WEBSITE: ${{secrets.REMOTELYSAVE_WEBSITE}}
+      REMOTELYSAVE_CLIENT_ID: ${{secrets.REMOTELYSAVE_CLIENT_ID}}
+      GOOGLEDRIVE_CLIENT_ID: ${{secrets.GOOGLEDRIVE_CLIENT_ID}}
+      GOOGLEDRIVE_CLIENT_SECRET: ${{secrets.GOOGLEDRIVE_CLIENT_SECRET}}
+      BOX_CLIENT_ID: ${{secrets.BOX_CLIENT_ID}}
+      BOX_CLIENT_SECRET: ${{secrets.BOX_CLIENT_SECRET}}
+      PCLOUD_CLIENT_ID: ${{secrets.PCLOUD_CLIENT_ID}}
+      PCLOUD_CLIENT_SECRET: ${{secrets.PCLOUD_CLIENT_SECRET}}
+      YANDEXDISK_CLIENT_ID: ${{secrets.YANDEXDISK_CLIENT_ID}}
+      YANDEXDISK_CLIENT_SECRET: ${{secrets.YANDEXDISK_CLIENT_SECRET}}
+      KOOFR_CLIENT_ID: ${{secrets.KOOFR_CLIENT_ID}}
+      KOOFR_CLIENT_SECRET: ${{secrets.KOOFR_CLIENT_SECRET}}

    strategy:
      matrix:
@@ -23,6 +23,18 @@ jobs:
      DROPBOX_APP_KEY: ${{secrets.DROPBOX_APP_KEY}}
      ONEDRIVE_CLIENT_ID: ${{secrets.ONEDRIVE_CLIENT_ID}}
      ONEDRIVE_AUTHORITY: ${{secrets.ONEDRIVE_AUTHORITY}}
+      REMOTELYSAVE_WEBSITE: ${{secrets.REMOTELYSAVE_WEBSITE}}
+      REMOTELYSAVE_CLIENT_ID: ${{secrets.REMOTELYSAVE_CLIENT_ID}}
+      GOOGLEDRIVE_CLIENT_ID: ${{secrets.GOOGLEDRIVE_CLIENT_ID}}
+      GOOGLEDRIVE_CLIENT_SECRET: ${{secrets.GOOGLEDRIVE_CLIENT_SECRET}}
+      BOX_CLIENT_ID: ${{secrets.BOX_CLIENT_ID}}
+      BOX_CLIENT_SECRET: ${{secrets.BOX_CLIENT_SECRET}}
+      PCLOUD_CLIENT_ID: ${{secrets.PCLOUD_CLIENT_ID}}
+      PCLOUD_CLIENT_SECRET: ${{secrets.PCLOUD_CLIENT_SECRET}}
+      YANDEXDISK_CLIENT_ID: ${{secrets.YANDEXDISK_CLIENT_ID}}
+      YANDEXDISK_CLIENT_SECRET: ${{secrets.YANDEXDISK_CLIENT_SECRET}}
+      KOOFR_CLIENT_ID: ${{secrets.KOOFR_CLIENT_ID}}
+      KOOFR_CLIENT_SECRET: ${{secrets.KOOFR_CLIENT_SECRET}}

    strategy:
      matrix:
@@ -1,202 +1,3 @@
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-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
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-   distributed under the License is distributed on an "AS IS" BASIS,
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+The codes or files or subfolders inside the folder `src`, `tests`, `docs`, `assets`, are released under the "Open Source" license: "Apache License, version 2.0", described at: https://www.apache.org/licenses/LICENSE-2.0 .

+The codes or files or subfolders inside the folder `pro`, are released under the "Source Available" license: "PolyForm Strict License 1.0.0", described at: https://polyformproject.org/licenses/strict/1.0.0/ .
@@ -20,17 +20,22 @@ This is yet another unofficial sync plugin for Obsidian. If you like it or find
  - Amazon S3 or S3-compatible (Cloudflare R2 / BackBlaze B2 / MinIO / ...)
  - Dropbox
  - OneDrive for personal
-  - Webdav
+  - Webdav (NextCloud / InfiniCloud / Synology webdav server / ...)
  - Webdis
+  - Google Drive (GDrive) (PRO feature)
+  - Box (PRO feature)
+  - pCloud (PRO feature)
+  - Yandex Disk (PRO feature)
+  - Koofr (PRO feature)
  - [Here](./docs/services_connectable_or_not.md) shows more connectable (or not-connectable) services in details.
 - **Obsidian Mobile supported.** Vaults can be synced across mobile and desktop devices with the cloud service as the "broker".
 - **[End-to-end encryption](./docs/encryption/README.md) supported.** Files would be encrypted using openssl format before being sent to the cloud **if** user specify a password.
 - **Scheduled auto sync supported.** You can also manually trigger the sync using sidebar ribbon, or using the command from the command palette (or even bind the hot key combination to the command then press the hot key combination).
 - **[Minimal Intrusive](./docs/minimal_intrusive_design.md).**
 - **Skip Large files** and **skip paths** by custom regex conditions!
- **Fully open source under [Apache-2.0 License](./LICENSE).**
- **[Sync Algorithm open](./docs/sync_algorithm/v3/intro.md) for discussion.**
- **[Basic Conflict Detection And Handling](./docs/sync_algorithm/v3/intro.md)** now, more to come!
+- **[Sync Algorithm](./docs/sync_algorithm/v3/intro.md) is provided for discussion.**
+- **[Basic Conflict Detection And Handling](./docs/sync_algorithm/v3/intro.md)** for free version. **[Advanced Smart Conflict Handling](./pro/README.md)** for PRO version. 
+- Source Available. See [License](./LICENSE) for details.

 ## Limitations

@@ -107,6 +112,9 @@ Additionally, the plugin author may occasionally visit Obsidian official forum a
  - [Synology webdav server](./docs/remote_services/webdav_synology_webdav_server/README.md) | [群晖 webdav server](./docs/remote_services/webdav_synology_webdav_server/README.zh-cn.md)
  - [AList（中文）](./docs/remote_services/webdav_alist/README.zh-cn.md) | [AList (English)](./docs/remote_services/webdav_alist/README.md)
  - [坚果云](./docs/remote_services/webdav_jianguoyun/README.zh-cn.md) | [JianGuoYun/NutStore](./docs/remote_services/webdav_jianguoyun/README.md)
+  - [Open Media Vault](./docs/remote_services/webdav_openmediavault/README.md)
+  - [Nginx (`ngx_http_dav_module`, `nginx-dav-ext-module`, with Docker)](./docs/remote_services/webdav_nginx/README.md)
+  - [Apache (with Docker)](./docs/remote_services/webdav_apache/README.md)
 - Very old version of Obsidian needs [configuring CORS](./docs/remote_services/webdav_general/webav_cors.md).
 - Your data would be synced to a `${vaultName}` sub folder on your webdav server.
 - Password-based end-to-end encryption is also supported. But please be aware that **the vault name itself is not encrypted**.
@@ -119,18 +127,55 @@ Additionally, the plugin author may occasionally visit Obsidian official forum a
 - Mostly experimental.
 - You have to setup and protect your web server by yourself.

+### Google Drive (GDrive) (PRO feature)
+
+PRO (paid) feature "sync with Google Drive" allows users to to sync with Google Drive. Tutorials and limitations are documented [here](./docs/remote_services/googledrive/README.md).
+
+### Box (PRO feature)
+
+PRO (paid) feature "sync with Box" allows users to to sync with Box. Tutorials and limitations are documented [here](./docs/remote_services/box/README.md).
+
+### pCloud (PRO feature)
+
+PRO (paid) feature "sync with pCloud" allows users to to sync with pCloud (using its native API instead of webdav). Tutorials and limitations are documented [here](./docs/remote_services/pcloud/README.md).
+
+### Yandex Disk (PRO feature)
+
+PRO (paid) feature "sync with Yandex Disk" allows users to to sync with Yandex Disk (using its native API instead of webdav). Tutorials and limitations are documented [here](./docs/remote_services/yandexdisk/README.md).
+
+### Koofr (PRO feature)
+
+PRO (paid) feature "sync with Koofr" allows users to to sync with Koofr (using its native API instead of webdav). Tutorials and limitations are documented [here](./docs/remote_services/koofr/README.md).
+
+## Smart Conflict (PRO feature)
+
+Basic (free) version can detect conflicts, but users have to choose to keep newer version or larger version of the files.
+
+PRO (paid) feature "Smart Conflict" gives users one more option: merge small markdown files, or duplicate large markdown files or non-markdown files.
+
+See documents [here](./docs/pro/README.md)
+
 ## Scheduled Auto Sync

 - You can configure auto syncing every N minutes in settings.
 - In auto sync mode, if any error occurs, the plugin would **fail silently**.
 - Auto sync only works when Obsidian is being opened. It's **technically impossible** to auto sync while Obsidian is in background, because the plugin just works in the browser environment provided by Obsidian.

+## Sync On Save
+
+- You can configure sync on save in settings.
+- In sync on save mode, if any error occurs, the plugin would **fail silently**.
+
 ## How To Deal With Hidden Files Or Folders

 **By default, all files or folder starting with `.` (dot) or `_` (underscore) are treated as hidden files, and would NOT be synced.** It's useful if you have some files just staying locally. But this strategy also means that themes / other plugins / settings of this plugin would neither be synced.

 In the latest version, you can change the settings to allow syncing `_` files or folders, as well as `.obsidian` special config folder (but not any other `.` files or folders).

+## PRO Features
+
+See [PRO](./docs/pro/README.md) for more details.
+
 ## How To Debug

 See [here](./docs/how_to_debug/README.md) for more details.
@@ -1,25 +0,0 @@
-// Importing the http module
-const http = require("http");
-
-const requestHandler = (req, res) => {
-  const body = [];
-  req
-    .on("data", (chunk) => {
-      body.push(chunk);
-    })
-    .on("end", () => {
-      const parsed = JSON.parse(Buffer.concat(body).toString());
-      const prettyParsed = JSON.stringify(parsed, null, 2);
-      console.log(prettyParsed);
-      res.setHeader("Content-Type", "application/json");
-      res.end(prettyParsed);
-    });
-};
-
-const server = http.createServer(requestHandler);
-
-const addr = "0.0.0.0";
-const port = 3000;
-server.listen(port, addr, undefined, () => {
-  console.log(`Server is Running on ${addr}:${port}`);
-});
@@ -0,0 +1,53 @@
+# PRO Features
+
+From version 0.5.x, Remotely Save introduces PRO (paid) features. Users need to subscribe to (pay) them to use them.
+
+**If you are using basic features only, you don't need an online account, and you don't need to pay for the plugin.**
+
+# Links
+
+* Remotely Save official website: <https://remotelysave.com>
+* Sign up / Sign in: <https://remotelysave.com/user/signupin>
+* User profile: <https://remotelysave.com/user/profile>
+
+# Disclaimer
+
+It's different from, and NOT affiliated with Obsidian account.
+
+# Steps
+
+## Steps of signing up and signing in
+
+1. Go to the website, sign up and sign in. You can directly visit <https://remotelysave.com/user/signupin> or click the link in Remotely Save plugin setting page.
+    ![pro setting](./pro_setting.png)
+2. Use an email and your password as usual. Don't need to be GMail account.
+
+## Steps of connecting
+
+You need to connect your plugin to your online account. In Obsidian, in your Remotely Save plugin setting, you can click the button "Connect" to start the flow.
+
+1. You will see a special address on website. Click it and visit the website
+2. Click "allow" on the website.
+3. In the end of the auth flow on the website, you will be shown up a code, please copy it...
+4. And paste the code back to the plugin modal inside Obsidian, and confirm.
+
+![connect flow](./connect_flow.png)
+
+## Steps of subscribing to some features. 
+
+1. Firstly please visit your [profile page](https://remotelysave.com/user/profile) online.
+2. You can subscribe to some features. Prices vary.
+    ![PRO features online](./pro_features_enabled_on_website.png)
+3. Go back to your Remotely Save plugin inside Obsidian, click "Check again" button in PRO settings. So that the plugin knows some features are enabled.
+    ![check again PRO features](./check_pro_features_in_settings.png)
+4. Sync and enjoy your PRO features!
+
+## Why so complicated?
+
+Because we don't have a payment method inside the plugin, so we have to:
+
+* build a website, 
+* require users having online accounts
+* and connect the plugin to the online account.
+
+Moreover, an online account allows flexible management of subscriptions. 
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8c73da29a621d225387640b76ec0dcfb56b3ffad151dab374d3b7cc76067a1a0
+size 94377
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:116c2a8ec1a277a3985f4056b390574fc57145ec5635d44accf2a7445666264a
+size 626668
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4c45c08e6fc487341032aac511c332e3f9978a44e9b93377a73648b56b684b62
+size 155427
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:08d128125dba033f5dd18a6ea8d942b284ddca6c5c3b0362c47dcb4a7153a8f9
+size 395800
@@ -0,0 +1,34 @@
+# Box (PRO)
+
+# Links
+
+<https://www.box.com/>
+
+# Intro
+
+* It's a PRO feature of Remotely Save plugin.
+* **This plugin is NOT an official Box product, and just uses Box's public api.**
+
+# Steps
+
+## Steps of Remotely Save subscription
+
+1. Please sign up and sign in an online account, connect your plugin to your online account firstly. See [the PRO tutorial](../../pro/README.md) firstly.
+2. Subscribe to "sync with Box" feature online.
+3. Go back to your Remotely Save plugin inside Obsidian, click "Check again" button in PRO settings. So that the plugin knows some features are enabled. In this case, sync with Box should be detected.
+
+## Steps of Connecting to your Box
+
+After you enabled the PRO feature in your Remotely Save plugin, you can connect to your Box account now.
+
+1. In Remotely Save settings, change your sync service to Box.
+2. Click Auth, visit the link, go to Box website to start.
+3. Follow the instruction on Box, and allow Remotely Save to connect.
+4. You will be redirected back to Remotely Save plugin.
+5. A notice will tell you that you've connected or not.
+6. Sync! The plugin will create a vault folder in the root of your Box and upload notes into that folder.
+7. **Read the caveats below.**
+
+# The caveats
+
+* As of June 2024, this feature is in beta stage. **Back up your vault before using this feature.**
@@ -0,0 +1,59 @@
+# Google Drive (GDrive) (PRO)
+
+# Intro
+
+* It's a PRO feature of Remotely Save plugin.
+* **This plugin is NOT an official Google product, and just uses Google Drive's public api.**
+
+# Steps
+
+## Steps of Remotely Save subscription
+
+1. Please sign up and sign in an online account, connect your plugin to your online account firstly. See [the PRO tutorial](../../pro/README.md) firstly.
+2. Subscribe to "sync with Google Drive" feature online.
+3. Go back to your Remotely Save plugin inside Obsidian, click "Check again" button in PRO settings. So that the plugin knows some features are enabled. In this case, sync with Google Drive should be detected.
+
+## Steps of Connecting to your Google Drive
+
+After you enabled the PRO feature in your Remotely Save plugin, you can connect to your Google Drive account now.
+
+1. In Remotely Save settings, change your sync service to Google Drive.
+    ![change remote to google drive](./change_remote_to_google_drive.png)
+2. Click Auth, visit the link, go to Remotely Save website to start.
+    ![visit start link](./google_drive_auth_link.png)
+3. On the website, click the link to go to Google Drive auth page.
+4. Follow the instruction on Google website, and allow (continue) Remotely Save to connect.
+    ![allow Remotely Save in Google website](./google_drive_auth_allow.png)
+5. You will be redirected to Remotely Save website, and you will get a code. Copy it...
+    ![redirected back and get the code](./google_drive_auth_code_show.png)
+6. ... And paste the code back to the plugin inside Obsidian. Click submit.
+    ![submit the code in setting](./google_drive_code_submit.png)
+7. A notice will tell you that you've connected or not.
+8. Sync! The plugin will create a vault folder in the root of your Google Drive and upload notes into that folder.
+9. **Read the caveats below.**
+
+# Why so complicated?
+
+Because Google Drive's api doesn't fit into the special envorinment of Obsidian plugin. So we need a website.
+
+# The credential
+
+The website does **NOT** store or save the Google drive credential (the code you obtian in the end of the flow). The website is just a "bridge" to help you obtain that code, and just manage your subscription to PRO features.
+
+But please be aware that the code is saved locally in your Obsidian. It works like a special password. So that the plugin can upload or download or modify the files for you.
+
+# The caveats
+
+* As of June 2024, this feature is in beta stage. **Back up your vault before using this feature.**
+
+* The plugin can **only** sees, reads or writes the files and folders created by itself! 
+
+    It means that, you CANNOT manually create the vault folder in your Google Drive account. And if you manually upload any files using Google's official website, the plugin does **NOT** see them. All operations must go through Obsidian and uploaded by the plugin.
+
+    You can, however, view, and download the files on Google Drive [official web page](https://drive.google.com/drive/u/0/my-drive).
+
+    Precisely speaking, the plugin applies for the `drive.file` scope recommended by Google. See [the doc](https://developers.google.com/drive/api/guides/api-specific-auth#benefits) by Google for the scope's benefits. Basically the plugin will never (is unable to) mess up your other files or folders.
+
+    Moreover, this scope is "not-sensitive", so that the plugin doesn't need to go through Google's complicated verification process while applying for it.
+
+* Google Drive, unlike other cloud storage, allows files of same name co-existing in the same folder! (hmmmmm...) It may or may not make the plugin stop working. Users might need to remove the duplicated file manually on Google's official website.
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eaa9aa8ba6b066dfefdce08a8d1da1d97089f5c2de0ba4c0c026d6df9eb9ece8
+size 99896
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6683a63718053603ae7dde44063a3807ba0def7e935da0b40fcc8e181afd24ae
+size 342848
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:310bd4c7d5fe19521ec7184b2eee749f0eecf00397f2b8e68480c23b4fd7c943
+size 153504
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dcebb1f73829670883071447a8eee46c972b26fe8735c7422949cb6fe927b8ab
+size 179369
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7e5a85c28f5614e4de75eacc021c2876d36596bcb77f0744a6edcff7777b9530
+size 155004
@@ -0,0 +1,38 @@
+# Koofr (PRO)
+
+# Links
+
+<https://koofr.eu/>
+
+# Intro
+
+* It's a PRO feature of Remotely Save plugin.
+* **This plugin is NOT an official Koofr product, and just uses Koofr's public api.**
+
+# Steps
+
+## Steps of Remotely Save subscription
+
+1. Please sign up and sign in an online account, connect your plugin to your online account firstly. See [the PRO tutorial](../../pro/README.md) firstly.
+2. Subscribe to "sync with Koofr" feature online.
+3. Go back to your Remotely Save plugin inside Obsidian, click "Check again" button in PRO settings. So that the plugin knows some features are enabled. In this case, sync with Koofr should be detected.
+
+## Steps of Connecting to your Koofr
+
+After you enabled the PRO feature in your Remotely Save plugin, you can connect to your Koofr account now.
+
+1. In Remotely Save settings, change your sync service to Koofr.
+2. Click Auth, visit the link, go to Koofr website to start.
+3. Follow the instruction on Koofr, and allow Remotely Save to connect.
+4. You will be redirected back to Remotely Save plugin.
+5. A notice will tell you that you've connected or not.
+6. Sync! The plugin will create a vault folder in the root of your Koofr and upload notes into that folder.
+7. **Read the caveats below.**
+
+# The caveats
+
+* As of June 2024, this feature is in beta stage. **Back up your vault before using this feature.**
+
+# Why not use webdav?
+
+The Remotely Save PRO feture "sync with Koofr" is developed using Koofr's native API, instead of webdav interface. It brings benefits such that the last modified time can be preserved.
@@ -0,0 +1,40 @@
+# pCloud (PRO)
+
+# Links
+
+<https://www.pcloud.com/>
+
+# Intro
+
+* It's a PRO feature of Remotely Save plugin.
+* **This plugin is NOT an official pCloud product, and just uses pCloud's public api.**
+
+# Steps
+
+## Steps of Remotely Save subscription
+
+1. Please sign up and sign in an online account, connect your plugin to your online account firstly. See [the PRO tutorial](../../pro/README.md) firstly.
+2. Subscribe to "sync with pCloud" feature online.
+3. Go back to your Remotely Save plugin inside Obsidian, click "Check again" button in PRO settings. So that the plugin knows some features are enabled. In this case, sync with pCloud should be detected.
+
+## Steps of Connecting to your pCloud
+
+After you enabled the PRO feature in your Remotely Save plugin, you can connect to your pCloud account now.
+
+1. In Remotely Save settings, change your sync service to pCloud.
+2. Click Auth, visit the link, go to pCloud website to start.
+3. Follow the instruction on pCloud, and allow Remotely Save to connect.
+4. You will be redirected back to Remotely Save plugin.
+5. A notice will tell you that you've connected or not.
+6. Sync! The plugin will create a vault folder in the root of your pCloud and upload notes into that folder.
+7. **Read the caveats below.**
+
+# The caveats
+
+* As of June 2024, this feature is in beta stage. **Back up your vault before using this feature.**
+* pCloud's API seems to not allow uploading empty files. You can choose to skip them or raise errors in Remotely Save plugin's settings.
+
+# Why not use webdav?
+
+1. pCloud only provides webdav for Premium. If you are a Premium user, you can still use pCloud webdav with Remotely Save.
+2. The Remotely Save PRO feture "sync with pCloud" is developed using pCloud's native API, instead of webdav interface. It brings benefits such that the last modified time can be preserved.
@@ -0,0 +1,62 @@
+# Apache Webdav 
+
+The following tutorial uses Apache with Docker in Linux, using the image [`bytemark/webdav`](https://hub.docker.com/r/bytemark/webdav/).
+
+You can also checkout the official doc from Bytemark [here](https://docs.bytemark.co.uk/article/run-your-own-webdav-server-with-docker/). The tutorial you are reading here is a little different from Bytemark's article.
+
+Assuming you want a webdav server on Linux satisfying that:
+
+1. Data is saved in your host machine's `./dav1` folder,
+2. WebDAV is accessed by a user `user1` with password `password1`,
+3. WebDAV is accessed on the host machine and port 8080: `127.0.0.1:8080`.
+4. Use Basic auth type.
+
+Install docker nd set its permission properly. Then run this in terminal:
+
+```bash
+mkdir ./dav1 # create the local folder
+
+docker container run --rm \
+  -p 127.0.0.1:8080:80 \
+  -v ./dav1:/var/lib/dav \
+  -e USERNAME=user1 \
+  -e PASSWORD=password1 \
+  -e AUTH_TYPE=Basic \
+  bytemark/webdav
+```
+
+We do not have `--detach` prameter here, so the server will be closed as soon as you terminate the program or close terminal. You might want to adjust the settings further by yourself.
+
+Then, in Remotely Save's setting, set these (auth type should always be `Basic`):
+
+```
+Server: http://127.0.0.1:8080
+User: user1
+Password: password1
+Auth Type: Basic
+Depth Header Sent To Servers: only supports depth='1'
+```
+
+![Apache RS Setting](./apache_rs_settings.png)
+
+Then the server should be connected! You can sync now!
+
+In you host machine's file system, you should find some files and folders were added into the folder `./dav1`.
+
+```
+ls ./dav1/
+## data  DavLock  DavLock.dir  DavLock.pag
+
+ls ./dav1/data/
+## <your vault name or your base dir>
+```
+
+# Auth type
+
+You can change the auth type while calling Docker, between `Basic` and `Digest`. And please rememberto adjust the Remotely Save's settings. Both works.
+
+# Notice
+
+1. **Never expose your webdav server to public networks without protections or without strong passwords!**
+2. I personally recommend using tailscale to build a LAN instead of expoing the service to public.
+3. If you want to connect to the server from iOS (iPhone / iPad), the https is required. I personally recommend using caddy as the reverse proxy. Caddy can also be combined with tailscale. 
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:264e50d3adaeb4fc4e76b00273459d7d021f1b44af7f07b00a5c40741e65194d
+size 658482
@@ -0,0 +1,51 @@
+# Nginx Webdav 
+
+The following tutorial uses Nginx with Docker in Linux, using the image [docker-nginx-webdav-nononsense](https://github.com/dgraziotin/docker-nginx-webdav-nononsense). It contains `ngx_http_dav_module` and `nginx-dav-ext-module`.
+
+The description is adapted from the pull request [`dgraziotin/docker-nginx-webdav-nononsense#123`](https://github.com/dgraziotin/docker-nginx-webdav-nononsense/pull/123) by Remotely Save author.
+
+Assuming you want a webdav server on Linux satisfying that:
+
+1. Data is saved in your host machine's `./dav1` folder,
+2. WebDAV is accessed by a user `user1` with password `password1`,
+3. WebDAV is accessed on the host machine and port 8080: `127.0.0.1:8080`.
+4. (Only Basic auth type is supported.)
+
+Install docker nd set its permission properly. Then run this in terminal:
+
+```bash
+mkdir ./dav1 # create the local folder
+
+docker container run --rm \
+  -p 127.0.0.1:8080:80 \
+  -v ./dav1:/data \
+  -e WEBDAV_USERNAME=user1 \
+  -e WEBDAV_PASSWORD=password1 \
+  -e PUID=1000 \
+  -e PGID=1000 \
+  dgraziotin/nginx-webdav-nononsense
+```
+
+We do not have `--detach` prameter here, so the server will be closed as soon as you terminate the program or close terminal. You might want to adjust the settings further by yourself.
+
+Then, in Remotely Save's setting, set these (auth type should always be `Basic`):
+
+```
+Server: http://127.0.0.1:8080
+User: user1
+Password: password1
+Auth Type: Basic
+Depth Header Sent To Servers: only supports depth='1'
+```
+
+![Nginx RS Setting](./nginx_rs_setting.png)
+
+Then the server should be connected! You can sync now!
+
+In you host machine's file system, you should find some files and folders were added into the folder `./dav1`.
+
+# Notice
+
+1. **Never expose your webdav server to public networks without protections or without strong passwords!**
+2. I personally recommend using tailscale to build a LAN instead of expoing the service to public.
+3. If you want to connect to the server from iOS (iPhone / iPad), the https is required. I personally recommend using caddy as the reverse proxy. Caddy can also be combined with tailscale. 
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:92059e0819d25640a02d2494ba9da0bfa7a69003cdba36ced985bed9e29b0354
+size 254978
@@ -0,0 +1,21 @@
+# Open Media Vault WebDAV
+
+## Link 
+https://www.openmediavault.org
+
+## Steps
+
+1. In Open Media Vault's UI, install the WebDAV plugin:
+   * System → Plugins → openmediavault-webdav
+2. Create a new Shared Folder
+   * Storage → Shared Folders → Create
+3. Enable WebDAV server
+   * Services → WedDAV → Enable → Select previously created Shared Folder
+4. Make sure Group is "webdav-users"
+5. Add {your username} to "webdav-users" group
+   * Users → Groups → webdav-users → Edit → Members
+6. Set folder permissions
+   * Storage → Shared Folders select the corresponding shared folder → Permissions → Set both {your username} and "webdav-users" group to "Read/Write" permissions
+7. Back to Shared Folders, set specific Access Control List permissions
+   * Select the shared folder → Access Control List → set {your username}, "webdav-users" and "www-data" to "Read/Write" permissions
+8. Install Remotely Save in Obsidian, select WebDAV, add the URL http://[your-server-ip]/webdav, use your user credentials and connect.
@@ -0,0 +1,44 @@
+# Yandex Disk (PRO)
+
+# Links
+
+<https://disk.yandex.com/client/disk>
+
+# Intro
+
+* It's a PRO feature of Remotely Save plugin.
+* **This plugin is NOT an official Yandex Disk or Yandex product, and just uses Yandex Disk's public api.**
+
+# Steps
+
+## Steps of Remotely Save subscription
+
+1. Please sign up and sign in an online account, connect your plugin to your online account firstly. See [the PRO tutorial](../../pro/README.md) firstly.
+2. Subscribe to "sync with Yandex Disk" feature online.
+3. Go back to your Remotely Save plugin inside Obsidian, click "Check again" button in PRO settings. So that the plugin knows some features are enabled. In this case, sync with Yandex Disk should be detected.
+
+## Steps of Connecting to your Yandex Disk
+
+After you enabled the PRO feature in your Remotely Save plugin, you can connect to your Yandex Disk account now.
+
+1. In Remotely Save settings, change your sync service to Yandex Disk.
+2. Click Auth, visit the link, go to Yandex Disk website to start.
+3. Follow the instruction on Yandex Disk, and allow Remotely Save to connect.
+4. You will be redirected back to Remotely Save plugin.
+5. A notice will tell you that you've connected or not.
+6. Sync! The plugin will create a vault folder in the root of your Yandex Disk and upload notes into that folder.
+7. **Read the caveats below.**
+
+# The caveats
+
+* As of June 2024, this feature is in beta stage. **Back up your vault before using this feature.**
+
+# Why not use webdav?
+
+1. The Remotely Save PRO feture "sync with Yandex Disk" is developed using Yandex Disk's native API, instead of webdav interface. It brings benefits such that the last modified time can be preserved.
+2. Some users prefer oauth2 method to authorize themselves.
+
+# Bonus: where to register the app
+
+* <https://oauth.yandex.com/client/new/> or <https://oauth.yandex.ru/client/new/>
+* redirect uri can be set to <https://oauth.yandex.com/verification_code> or <https://oauth.yandex.ru/verification_code>.
@@ -6,37 +6,41 @@ The plugin works under the browser environment in Obsidian, so CORS is an issue.

 The list is for information purposes only.

-| Service                                                                               | Connectable | by S3 | by WebDAV | by other protocol                                                | can bypass CORS issue in latest Obsidian | need CORS config in old Obsidian                 |
-| ------------------------------------------------------------------------------------- | ----------- | ----- | --------- | ---------------------------------------------------------------- | ---------------------------------------- | ------------------------------------------------ |
-| Amazon S3                                                                             | Yes         | Yes   |           |                                                                  | Yes                                      | [CORS config needed.](./s3_cors_configure.md)    |
-| Tencent Cloud - Cloud Object Storage (COS) 腾讯云对象存储                             | Yes         | Yes   |           |                                                                  | Yes                                      | CORS config needed.                              |
-| Alibaba Cloud - Object Storage Service 阿里云对象存储                                 | Yes         | Yes   |           |                                                                  | Yes                                      | CORS config needed.                              |
-| Backblaze B2 Cloud Storage                                                            | Yes         | Yes   |           |                                                                  | Yes                                      | Its CORS rules doesn't allow no-http(s) origins. |
-| [Wasabi](https://wasabi.com)                                                          | ?           | ?     |           |                                                                  |                                          |                                                  |
-| [filebase](https://filebase.com/)                                                     | Yes         | Yes   |           |                                                                  | Yes                                      | CORS config needed.                              |
-| QingStor 青云                                                                         | ?           | ?     |           |                                                                  |                                          |                                                  |
-| [MinIO](https://min.io/)                                                              | ?           | ?     |           |                                                                  |                                          |                                                  |
-| [WsgiDAV](https://github.com/mar10/wsgidav)                                           | Yes         |       | Yes       |                                                                  | Yes                                      | CORS rules can be set.                           |
-| [Nginx `ngx_http_dav_module`](http://nginx.org/en/docs/http/ngx_http_dav_module.html) | Yes?        |       | Yes?      |                                                                  | Yes?                                     | ?                                                |
-| NextCloud                                                                             | Yes         |       | Yes       |                                                                  | Yes?                                     | No CORS config by default.                       |
-| OwnCloud                                                                              | Yes?        |       | Yes?      |                                                                  | Yes?                                     | No CORS config by default.                       |
-| Seafile                                                                               | Yes         |       | Yes       |                                                                  | Yes?                                     | No CORS config by default.                       |
-| `rclone serve webdav`                                                                 | Yes         |       | Yes       |                                                                  | Yes                                      | No CORS support.                                 |
-| [Nutstore 坚果云](https://www.jianguoyun.com/)                                        | Yes         |       | Yes       |                                                                  | Yes                                      | No CORS support.                                 |
-| [TeraCLOUD](https://teracloud.jp/en/)                                                 | Yes         |       | Yes       |                                                                  | Yes                                      | No CORS support.                                 |
-| Dropbox                                                                               | Yes         |       |           | Yes                                                              |                                          |                                                  |
-| OneDrive for personal                                                                 | Yes         |       |           | Yes                                                              |                                          |                                                  |
-| OneDrive for Business                                                                 | Yes         |       |           | ?                                                                |                                          |                                                  |
-| Google Drive                                                                          | In the plan |       |           | ?                                                                |                                          |                                                  |
-| [Box](https://www.box.com/)                                                           | ?           |       |           | May be possible but needs further development.                   |                                          |                                                  |
-| Google Cloud Storage                                                                  | ?           |       |           | May be possible but needs further development.                   |                                          |                                                  |
-| Microsoft Azure Blob Storage                                                          | ?           |       |           | May be possible but needs further development.                   |                                          |                                                  |
-| [OpenStack Storage (Swift)](https://github.com/openstack/swift)                       | ?           |       |           | May be possible but needs further development.                   |                                          |                                                  |
-| https://put.io/                                                                       | ?           |       |           | ?                                                                |                                          |                                                  |
-| Yandex Disk                                                                           | ?           |       |           | ?                                                                |                                          |                                                  |
-| FTP / FTPS                                                                            | Never       |       |           | Technically never possible to be implemented.                    |                                          |                                                  |
-| SFTP                                                                                  | Never       |       |           | Technically never possible to be implemented.                    |                                          |                                                  |
-| Jottacloud                                                                            | No          |       |           | No. It seems that no open api is available.                      |                                          |                                                  |
-| Mega                                                                                  | Never       |       |           | No. No js api is available.                                      |                                          |                                                  |
-| Git                                                                                   | Never       |       |           | No. Technically very hard, if not impossible, to be implemented. |                                          |                                                  |
-|                                                                                       |             |       |           |                                                                  |                                          |                                                  |
+
+| Service | Connectable | by S3 | by WebDAV | by other protocol |
+| ------ | ------ | ------ | ------ | ------ |
+| Amazon S3 | Yes | Yes | | |
+| Tencent Cloud - Cloud Object Storage (COS) 腾讯云对象存储 | Yes | Yes | | |
+| Alibaba Cloud - Object Storage Service 阿里云对象存储 | Yes | Yes | | |
+| Backblaze B2 Cloud Storage | Yes | Yes | | |
+| [Wasabi](https://wasabi.com) | ? | ? | | |
+| [filebase](https://filebase.com/) | Yes | Yes | | |
+| QingStor 青云 | ? | ? | | |
+| [MinIO](https://min.io/) | Yes | Yes | | |
+| [WsgiDAV](https://github.com/mar10/wsgidav) | Yes | | Yes | |
+| [Nginx `ngx_http_dav_module`](http://nginx.org/en/docs/http/ngx_http_dav_module.html) | Yes | | Yes | |
+| NextCloud | Yes | | Yes | |
+| OwnCloud | Yes? | | Yes? | |
+| Seafile | Yes | | Yes | |
+| `rclone serve webdav` | Yes | | Yes | |
+| [Nutstore 坚果云](https://www.jianguoyun.com/) | Yes (partially) | | Yes (partially) | |
+| [TeraCLOUD](https://teracloud.jp/en/) | Yes | | Yes | |
+| Seafile | ? | | ? | ? |
+| Dropbox | Yes | | | Yes |
+| OneDrive for personal | Yes | | | Yes |
+| OneDrive for Business | Yes | | | ? |
+| Google Drive | Yes (with limitations) (PRO) | | | Yes (with limitations) (PRO) |
+| [Box](https://www.box.com/) | Yes (PRO) | | | Yes (PRO) |
+| [pCloud](https://www.pcloud.com/) | Yes (PRO) | | Yes | Yes (PRO) |
+| Google Cloud Storage | ? | | | May be possible but needs further development. |
+| Microsoft Azure Blob Storage | ? | | | May be possible but needs further development. |
+| [OpenStack Storage (Swift)](https://github.com/openstack/swift) | ? | | | May be possible but needs further development. |
+| <https://put.io/> | ? | | | ? |
+| Yandex Disk | Yes (PRO) | | Yes | Yes (PRO) |
+| FTP / FTPS | Never | | | Technically never possible to be implemented. |
+| SFTP | Never | | | Technically never possible to be implemented. |
+| Jottacloud | No | | | No. It seems that no open api is available. |
+| Mega | Never | | | No. No js api is available. |
+| Git | Never | | | No. Technically very hard, if not impossible, to be implemented. |
+| [Koofr](https://koofr.eu/) | ? | | ? | ? |
+| [Blomp](https://www.blomp.com/) | ? | | | May be possible but needs further development. |
@@ -52,7 +52,7 @@ Bidirectional:
 | local deleted   | (04) delete remote | (05) pull                 | (01) clean history | (03) pull                 |
 | local created   | (??) conflict      | (??) conflict             | (06) push          | (11/12/13/14/15) conflict |

-Incremental push only:
+Incremental push:

 | local\remote    | remote unchanged             | remote modified              | remote deleted         | remote created               |
 | --------------- | ---------------------------- | ---------------------------- | ---------------------- | ---------------------------- |
@@ -61,7 +61,7 @@ Incremental push only:
 | local deleted   | **(29) conflict do nothing** | **(30) conflict do nothing** | (01) clean history     | **(28) conflict do nothing** |
 | local created   | (??) conflict                | (??) conflict                | (06) push              | **(23) conflict push**       |

-Incremental pull only:
+Incremental pull:

 | local\remote    | remote unchanged       | remote modified        | remote deleted               | remote created         |
 | --------------- | ---------------------- | ---------------------- | ---------------------------- | ---------------------- |
@@ -69,3 +69,21 @@ Incremental pull only:
 | local modified  | **(27) conflict pull** | **(24) conflict pull** | **(34) conflict do nothing** | (??) conflict          |
 | local deleted   | **(35) conflict pull** | (05) pull              | (01) clean history           | (03) pull              |
 | local created   | (??) conflict          | (??) conflict          | **(31) conflict do nothing** | **(22) conflict pull** |
+
+Incremental push and delete (diff decisionBranch: 38):
+
+| local\remote    | remote unchanged             | remote modified              | remote deleted         | remote created               |
+| --------------- | ---------------------------- | ---------------------------- | ---------------------- | ---------------------------- |
+| local unchanged | (02/21) do nothing           | **(26) conflict push**       | **(32) conflict push** | (??) conflict                |
+| local modified  | (10) push                    | **(25) conflict push**       | (08) push              | (??) conflict                |
+| local deleted   | **(38) delete remote**       | **(30) conflict do nothing** | (01) clean history     | **(28) conflict do nothing** |
+| local created   | (??) conflict                | (??) conflict                | (06) push              | **(23) conflict push**       |
+
+Incremental pull and delete (diff decisionBranch: 39):
+
+| local\remote    | remote unchanged       | remote modified        | remote deleted               | remote created         |
+| --------------- | ---------------------- | ---------------------- | ---------------------------- | ---------------------- |
+| local unchanged | (02/21) do nothing     | (09) pull              | **(39) delete local**        | (??) conflict          |
+| local modified  | **(27) conflict pull** | **(24) conflict pull** | **(34) conflict do nothing** | (??) conflict          |
+| local deleted   | **(35) conflict pull** | (05) pull              | (01) clean history           | (03) pull              |
+| local created   | (??) conflict          | (??) conflict          | **(31) conflict do nothing** | **(22) conflict pull** |
@@ -1,3 +1,4 @@
+import "dotenv/config";
 import esbuild from "esbuild";
 import inlineWorkerPlugin from "esbuild-plugin-inline-worker";
 import process from "process";
@@ -16,6 +17,20 @@ const prod = process.argv[2] === "production";
 const DEFAULT_DROPBOX_APP_KEY = process.env.DROPBOX_APP_KEY || "";
 const DEFAULT_ONEDRIVE_CLIENT_ID = process.env.ONEDRIVE_CLIENT_ID || "";
 const DEFAULT_ONEDRIVE_AUTHORITY = process.env.ONEDRIVE_AUTHORITY || "";
+const DEFAULT_REMOTELYSAVE_WEBSITE = process.env.REMOTELYSAVE_WEBSITE || "";
+const DEFAULT_REMOTELYSAVE_CLIENT_ID = process.env.REMOTELYSAVE_CLIENT_ID || "";
+const DEFAULT_GOOGLEDRIVE_CLIENT_ID = process.env.GOOGLEDRIVE_CLIENT_ID || "";
+const DEFAULT_GOOGLEDRIVE_CLIENT_SECRET =
+  process.env.GOOGLEDRIVE_CLIENT_SECRET || "";
+const DEFAULT_BOX_CLIENT_ID = process.env.BOX_CLIENT_ID || "";
+const DEFAULT_BOX_CLIENT_SECRET = process.env.BOX_CLIENT_SECRET || "";
+const DEFAULT_PCLOUD_CLIENT_ID = process.env.PCLOUD_CLIENT_ID || "";
+const DEFAULT_PCLOUD_CLIENT_SECRET = process.env.PCLOUD_CLIENT_SECRET || "";
+const DEFAULT_YANDEXDISK_CLIENT_ID = process.env.YANDEXDISK_CLIENT_ID || "";
+const DEFAULT_YANDEXDISK_CLIENT_SECRET =
+  process.env.YANDEXDISK_CLIENT_SECRET || "";
+const DEFAULT_KOOFR_CLIENT_ID = process.env.KOOFR_CLIENT_ID || "";
+const DEFAULT_KOOFR_CLIENT_SECRET = process.env.KOOFR_CLIENT_SECRET || "";

 esbuild
  .context({
@@ -51,6 +66,18 @@ esbuild
      "process.env.DEFAULT_DROPBOX_APP_KEY": `"${DEFAULT_DROPBOX_APP_KEY}"`,
      "process.env.DEFAULT_ONEDRIVE_CLIENT_ID": `"${DEFAULT_ONEDRIVE_CLIENT_ID}"`,
      "process.env.DEFAULT_ONEDRIVE_AUTHORITY": `"${DEFAULT_ONEDRIVE_AUTHORITY}"`,
+      "process.env.DEFAULT_REMOTELYSAVE_WEBSITE": `"${DEFAULT_REMOTELYSAVE_WEBSITE}"`,
+      "process.env.DEFAULT_REMOTELYSAVE_CLIENT_ID": `"${DEFAULT_REMOTELYSAVE_CLIENT_ID}"`,
+      "process.env.DEFAULT_GOOGLEDRIVE_CLIENT_ID": `"${DEFAULT_GOOGLEDRIVE_CLIENT_ID}"`,
+      "process.env.DEFAULT_GOOGLEDRIVE_CLIENT_SECRET": `"${DEFAULT_GOOGLEDRIVE_CLIENT_SECRET}"`,
+      "process.env.DEFAULT_BOX_CLIENT_ID": `"${DEFAULT_BOX_CLIENT_ID}"`,
+      "process.env.DEFAULT_BOX_CLIENT_SECRET": `"${DEFAULT_BOX_CLIENT_SECRET}"`,
+      "process.env.DEFAULT_PCLOUD_CLIENT_ID": `"${DEFAULT_PCLOUD_CLIENT_ID}"`,
+      "process.env.DEFAULT_PCLOUD_CLIENT_SECRET": `"${DEFAULT_PCLOUD_CLIENT_SECRET}"`,
+      "process.env.DEFAULT_YANDEXDISK_CLIENT_ID": `"${DEFAULT_YANDEXDISK_CLIENT_ID}"`,
+      "process.env.DEFAULT_YANDEXDISK_CLIENT_SECRET": `"${DEFAULT_YANDEXDISK_CLIENT_SECRET}"`,
+      "process.env.DEFAULT_KOOFR_CLIENT_ID": `"${DEFAULT_KOOFR_CLIENT_ID}"`,
+      "process.env.DEFAULT_KOOFR_CLIENT_SECRET": `"${DEFAULT_KOOFR_CLIENT_SECRET}"`,
      global: "window",
      "process.env.NODE_DEBUG": `undefined`, // ugly fix
      "process.env.DEBUG": `undefined`, // ugly fix
@@ -1,11 +1,11 @@
 {
  "id": "remotely-save",
  "name": "Remotely Save",
-  "version": "0.4.25",
+  "version": "0.5.8",
  "minAppVersion": "0.13.21",
  "description": "Yet another unofficial plugin allowing users to synchronize notes between local device and the cloud service.",
  "author": "fyears",
  "authorUrl": "https://github.com/fyears",
  "isDesktopOnly": false,
-  "fundingUrl": "https://github.com/remotely-save/donation"
+  "fundingUrl": "https://remotelysave.com"
 }
@@ -1,11 +1,11 @@
 {
  "id": "remotely-save",
  "name": "Remotely Save",
-  "version": "0.4.25",
+  "version": "0.5.8",
  "minAppVersion": "0.13.21",
  "description": "Yet another unofficial plugin allowing users to synchronize notes between local device and the cloud service.",
  "author": "fyears",
  "authorUrl": "https://github.com/fyears",
  "isDesktopOnly": false,
-  "fundingUrl": "https://github.com/remotely-save/donation"
+  "fundingUrl": "https://remotelysave.com"
 }
@@ -1,6 +1,6 @@
 {
  "name": "remotely-save",
-  "version": "0.4.25",
+  "version": "0.5.8",
  "description": "This is yet another sync plugin for Obsidian app.",
  "scripts": {
    "dev2": "node esbuild.config.mjs --watch",
@@ -9,7 +9,7 @@
    "dev": "webpack --mode development --watch",
    "format": "npx @biomejs/biome check --apply .",
    "clean": "npx rimraf main.js",
-    "test": "cross-env TS_NODE_COMPILER_OPTIONS={\\\"module\\\":\\\"commonjs\\\"} mocha -r ts-node/register 'tests/**/*.ts'"
+    "test": "cross-env TS_NODE_COMPILER_OPTIONS={\\\"module\\\":\\\"commonjs\\\"} mocha -r ts-node/register 'tests/**/*.ts' 'pro/tests/**/*.ts'"
  },
  "browser": {
    "path": "path-browserify",
@@ -23,7 +23,7 @@
  "source": "main.ts",
  "keywords": [],
  "author": "",
-  "license": "Apache-2.0",
+  "license": "SEE LICENSE IN LICENSE",
  "devDependencies": {
    "@biomejs/biome": "1.7.3",
    "@microsoft/microsoft-graph-types": "^2.40.0",
@@ -45,6 +45,7 @@
    "mocha": "^10.4.0",
    "npm-check-updates": "^16.14.20",
    "obsidian": "^1.5.7",
+    "openapi-typescript": "^7.0.0-rc.0",
    "ts-loader": "^9.5.1",
    "ts-node": "^10.9.2",
    "tslib": "^2.6.2",
@@ -63,6 +64,7 @@
    "@fyears/rclone-crypt": "^0.0.7",
    "@fyears/tsqueue": "^1.0.1",
    "@microsoft/microsoft-graph-client": "^3.0.7",
+    "@sanity/diff-match-patch": "^3.1.1",
    "@smithy/fetch-http-handler": "^2.5.0",
    "@smithy/protocol-http": "^3.3.0",
    "@smithy/querystring-builder": "^2.2.0",
@@ -70,6 +72,7 @@
    "aggregate-error": "^5.0.0",
    "assert": "^2.1.0",
    "aws-crt": "^1.21.2",
+    "box-typescript-sdk-gen": "^1.0.0",
    "buffer": "^6.0.3",
    "crypto-browserify": "^3.12.0",
    "dropbox": "^10.34.0",
@@ -83,8 +86,11 @@
    "mime-types": "^2.1.35",
    "mustache": "^4.2.0",
    "nanoid": "^5.0.7",
+    "node-diff3": "^3.1.2",
+    "openapi-fetch": "^0.9.7",
    "p-queue": "^8.0.1",
    "path-browserify": "^1.0.1",
+    "pcloud-sdk-js": "^2.0.0",
    "process": "^0.11.10",
    "qrcode": "^1.5.3",
    "rfc4648": "^1.5.3",
@@ -0,0 +1,104 @@
+# PolyForm Strict License 1.0.0
+
+<https://polyformproject.org/licenses/strict/1.0.0>
+
+## Acceptance
+
+In order to get any license under these terms, you must agree
+to them as both strict obligations and conditions to all
+your licenses.
+
+## Copyright License
+
+The licensor grants you a copyright license for the software
+to do everything you might do with the software that would
+otherwise infringe the licensor's copyright in it for any
+permitted purpose, other than distributing the software or
+making changes or new works based on the software.
+
+## Patent License
+
+The licensor grants you a patent license for the software that
+covers patent claims the licensor can license, or becomes able
+to license, that you would infringe by using the software.
+
+## Noncommercial Purposes
+
+Any noncommercial purpose is a permitted purpose.
+
+## Personal Uses
+
+Personal use for research, experiment, and testing for
+the benefit of public knowledge, personal study, private
+entertainment, hobby projects, amateur pursuits, or religious
+observance, without any anticipated commercial application,
+is use for a permitted purpose.
+
+## Noncommercial Organizations
+
+Use by any charitable organization, educational institution,
+public research organization, public safety or health
+organization, environmental protection organization,
+or government institution is use for a permitted purpose
+regardless of the source of funding or obligations resulting
+from the funding.
+
+## Fair Use
+
+You may have "fair use" rights for the software under the
+law. These terms do not limit them.
+
+## No Other Rights
+
+These terms do not allow you to sublicense or transfer any of
+your licenses to anyone else, or prevent the licensor from
+granting licenses to anyone else.  These terms do not imply
+any other licenses.
+
+## Patent Defense
+
+If you make any written claim that the software infringes or
+contributes to infringement of any patent, your patent license
+for the software granted under these terms ends immediately. If
+your company makes such a claim, your patent license ends
+immediately for work on behalf of your company.
+
+## Violations
+
+The first time you are notified in writing that you have
+violated any of these terms, or done anything with the software
+not covered by your licenses, your licenses can nonetheless
+continue if you come into full compliance with these terms,
+and take practical steps to correct past violations, within
+32 days of receiving notice.  Otherwise, all your licenses
+end immediately.
+
+## No Liability
+
+***As far as the law allows, the software comes as is, without
+any warranty or condition, and the licensor will not be liable
+to you for any damages arising out of these terms or the use
+or nature of the software, under any kind of legal claim.***
+
+## Definitions
+
+The **licensor** is the individual or entity offering these
+terms, and the **software** is the software the licensor makes
+available under these terms.
+
+**You** refers to the individual or entity agreeing to these
+terms.
+
+**Your company** is any legal entity, sole proprietorship,
+or other kind of organization that you work for, plus all
+organizations that have control over, are under the control of,
+or are under common control with that organization.  **Control**
+means ownership of substantially all the assets of an entity,
+or the power to direct its management and policies by vote,
+contract, or otherwise.  Control can be direct or indirect.
+
+**Your licenses** are all the licenses granted to you for the
+software under these terms.
+
+**Use** means anything you do with the software requiring one
+of your licenses.
@@ -0,0 +1,41 @@
+# Pro Features
+
+## What?
+
+Remotely Save has some "pro features", which users have to pay for using them.
+
+## Sign Up / Sign In And Connect
+
+See the tutorial about your PRO account [here](.../docs/pro/README.md).
+
+## Smart Conflict (PRO feature)
+
+Basic (free) version can detect conflicts, but users have to choose to keep newer version or larger version of the files.
+
+PRO (paid) feature "Smart Conflict" gives users one more option: merge small markdown files, or duplicate large markdown files or non-markdown files.
+
+## Google Drive (GDrive) (PRO feature)
+
+PRO (paid) feature "sync with Google Drive" allows users to to sync with Google Drive. Tutorials and limitations are documented [here](../docs/remote_services/googledrive/README.md).
+
+## Box (PRO feature)
+
+PRO (paid) feature "sync with Box" allows users to to sync with Box. Tutorials and limitations are documented [here](../docs/remote_services/box/README.md).
+
+## pCloud (PRO feature)
+
+PRO (paid) feature "sync with pCloud" allows users to to sync with pCloud (using its native API instead of webdav). Tutorials and limitations are documented [here](../docs/remote_services/pcloud/README.md).
+
+## Yandex Disk (PRO feature)
+
+PRO (paid) feature "sync with Yandex Disk" allows users to to sync with Yandex Disk (using its native API instead of webdav). Tutorials and limitations are documented [here](../docs/remote_services/yandexdisk/README.md).
+
+## Koofr (PRO feature)
+
+PRO (paid) feature "sync with Koofr" allows users to to sync with Koofr (using its native API instead of webdav). Tutorials and limitations are documented [here](../docs/remote_services/koofr/README.md).
+
+## License
+
+The codes or files or subfolders inside the current folder (`pro` in the repo), are released under "source available" license: "PolyForm Strict License 1.0.0".
+
+Suggestions are welcome.
@@ -0,0 +1,318 @@
+import { nanoid } from "nanoid";
+import {
+  OAUTH2_FORCE_EXPIRE_MILLISECONDS,
+  type RemotelySavePluginSettings,
+  type SUPPORTED_SERVICES_TYPE,
+} from "../../src/baseTypes";
+import {
+  COMMAND_CALLBACK_PRO,
+  type FeatureInfo,
+  PRO_CLIENT_ID,
+  type PRO_FEATURE_TYPE,
+  PRO_WEBSITE,
+  type ProConfig,
+} from "./baseTypesPro";
+import { codeVerifier2CodeChallenge } from "./oauth2";
+
+const site = PRO_WEBSITE;
+console.debug(`remotelysave official website: ${site}`);
+
+export const DEFAULT_PRO_CONFIG: ProConfig = {
+  accessToken: "",
+  accessTokenExpiresInMs: 0,
+  accessTokenExpiresAtTimeMs: 0,
+  refreshToken: "",
+  enabledProFeatures: [],
+  email: "",
+};
+
+export const generateAuthUrlAndCodeVerifierChallenge = async (
+  hasCallback: boolean
+) => {
+  const appKey = PRO_CLIENT_ID ?? "cli-"; // hard-code
+  const codeVerifier = nanoid(128);
+  const codeChallenge = await codeVerifier2CodeChallenge(codeVerifier);
+  let authUrl = `${site}/oauth2/authorize?response_type=code&client_id=${appKey}&token_access_type=offline&code_challenge_method=S256&code_challenge=${codeChallenge}&scope=pro.list.read`;
+  if (hasCallback) {
+    authUrl += `&redirect_uri=obsidian://${COMMAND_CALLBACK_PRO}`;
+  }
+  return {
+    authUrl,
+    codeVerifier,
+    codeChallenge,
+  };
+};
+
+export const sendAuthReq = async (
+  verifier: string,
+  authCode: string,
+  errorCallBack: any
+) => {
+  const appKey = PRO_CLIENT_ID ?? "cli-"; // hard-code
+  try {
+    const k = {
+      code: authCode,
+      grant_type: "authorization_code",
+      code_verifier: verifier,
+      client_id: appKey,
+      // redirect_uri: `obsidian://${COMMAND_CALLBACK_PRO}`,
+      scope: "pro.list.read",
+    };
+    // console.debug(k);
+    const resp1 = await fetch(`${site}/api/v1/oauth2/token`, {
+      method: "POST",
+      body: new URLSearchParams(k),
+    });
+    const resp2 = await resp1.json();
+    return resp2;
+  } catch (e) {
+    console.error(e);
+    if (errorCallBack !== undefined) {
+      await errorCallBack(e);
+    }
+  }
+};
+
+export const sendRefreshTokenReq = async (refreshToken: string) => {
+  const appKey = PRO_CLIENT_ID ?? "cli-"; // hard-code
+  try {
+    console.info("start auto getting refreshed Remotely Save access token.");
+    const resp1 = await fetch(`${site}/api/v1/oauth2/token`, {
+      method: "POST",
+      body: new URLSearchParams({
+        grant_type: "refresh_token",
+        refresh_token: refreshToken,
+        client_id: appKey,
+        scope: "pro.list.read",
+      }),
+    });
+    const resp2: AuthResError | AuthResSucc = await resp1.json();
+    console.info("finish auto getting refreshed Remotely Save access token.");
+    return resp2;
+  } catch (e) {
+    console.error(e);
+    throw e;
+  }
+};
+
+interface AuthResError {
+  error: "invalid_request";
+}
+
+interface AuthResSucc {
+  error: undefined; // needed for typescript
+  refresh_token?: string;
+  access_token: string;
+  expires_in: number;
+}
+
+export const setConfigBySuccessfullAuthInplace = async (
+  config: ProConfig,
+  authRes: AuthResError | AuthResSucc,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+) => {
+  if (authRes.error !== undefined) {
+    throw Error(`you should not save the setting for ${authRes.error}`);
+  }
+
+  config.accessToken = authRes.access_token;
+  config.accessTokenExpiresAtTimeMs =
+    Date.now() + authRes.expires_in * 1000 - 5 * 60 * 1000;
+  config.accessTokenExpiresInMs = authRes.expires_in * 1000;
+  config.refreshToken = authRes.refresh_token || config.refreshToken;
+
+  // manually set it expired after 80 days;
+  config.credentialsShouldBeDeletedAtTimeMs =
+    Date.now() + OAUTH2_FORCE_EXPIRE_MILLISECONDS;
+
+  await saveUpdatedConfigFunc?.();
+
+  console.info(
+    "finish updating local info of Remotely Save official website token"
+  );
+};
+
+export const getAccessToken = async (
+  config: ProConfig,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+) => {
+  const ts = Date.now();
+  if (
+    config.accessToken !== undefined &&
+    config.accessToken !== "" &&
+    config.accessTokenExpiresAtTimeMs > ts &&
+    (config.credentialsShouldBeDeletedAtTimeMs ?? ts + 1000 * 1000) > ts
+  ) {
+    return config.accessToken;
+  }
+
+  console.debug(
+    `currently, accessToken=${config.accessToken}, accessTokenExpiresAtTimeMs=${
+      config.accessTokenExpiresAtTimeMs
+    }, credentialsShouldBeDeletedAtTimeMs=${
+      config.credentialsShouldBeDeletedAtTimeMs
+    },comp1=${config.accessTokenExpiresAtTimeMs > ts}, comp2=${
+      (config.credentialsShouldBeDeletedAtTimeMs ?? ts + 1000 * 1000) > ts
+    }`
+  );
+
+  // try to get it again??
+  const res = await sendRefreshTokenReq(config.refreshToken ?? "refresh-");
+  await setConfigBySuccessfullAuthInplace(config, res, saveUpdatedConfigFunc);
+
+  if (res.error !== undefined) {
+    throw Error("cannot update accessToken");
+  }
+  return res.access_token;
+};
+
+export const getAndSaveProFeatures = async (
+  config: ProConfig,
+  pluginVersion: string,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+) => {
+  const access = await getAccessToken(config, saveUpdatedConfigFunc);
+
+  const resp1 = await fetch(`${site}/api/v1/pro/list`, {
+    method: "GET",
+    headers: {
+      Authorization: `Bearer ${access}`,
+      "REMOTELYSAVE-API-Plugin-Ver": pluginVersion,
+    },
+  });
+  const rsp2: {
+    proFeatures: FeatureInfo[];
+  } = await resp1.json();
+
+  config.enabledProFeatures = rsp2.proFeatures;
+  await saveUpdatedConfigFunc?.();
+  return rsp2;
+};
+
+export const getAndSaveProEmail = async (
+  config: ProConfig,
+  pluginVersion: string,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+) => {
+  const access = await getAccessToken(config, saveUpdatedConfigFunc);
+
+  const resp1 = await fetch(`${site}/api/v1/profile/list`, {
+    method: "GET",
+    headers: {
+      Authorization: `Bearer ${access}`,
+      "REMOTELYSAVE-API-Plugin-Ver": pluginVersion,
+    },
+  });
+  const rsp2: {
+    email: string;
+  } = await resp1.json();
+
+  config.email = rsp2.email;
+  await saveUpdatedConfigFunc?.();
+  return rsp2;
+};
+
+/**
+ * If the check doesn't pass, the function should throw the error
+ * @returns
+ */
+export const checkProRunnableAndFixInplace = async (
+  config: RemotelySavePluginSettings,
+  pluginVersion: string,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+): Promise<true> => {
+  console.debug(`checkProRunnableAndFixInplace`);
+
+  // many checks if status is valid
+
+  // no account
+  if (config.pro === undefined || config.pro.refreshToken === undefined) {
+    throw Error(`you need to "connect" to your account to use PRO features`);
+  }
+
+  // every features should have at most 40 days expiration dates
+  // and if the time has expired, we also check
+  const msIn40Days = 1000 * 60 * 60 * 24 * 40;
+  for (const f of config.pro.enabledProFeatures) {
+    const tooFarInTheFuture = f.expireAtTimeMs >= Date.now() + msIn40Days;
+    const alreadyExpired = f.expireAtTimeMs <= Date.now();
+    if (tooFarInTheFuture || alreadyExpired) {
+      console.info(
+        `the pro feature is too far in the future and has expired, check again.`
+      );
+      await getAndSaveProFeatures(
+        config.pro,
+        pluginVersion,
+        saveUpdatedConfigFunc
+      );
+      break;
+    }
+  }
+
+  const errorMsgs = [];
+
+  // check for smart_conflict
+  if (config.conflictAction === "smart_conflict") {
+    if (
+      config.pro.enabledProFeatures.filter(
+        (x) => x.featureName === "feature-smart_conflict"
+      ).length === 1
+    ) {
+      // good to go
+    } else {
+      errorMsgs.push(
+        `You're trying to use "smart conflict" PRO feature but you haven't subscribe to it.`
+      );
+    }
+  } else {
+    // good to go
+  }
+
+  const toChecked: {
+    feature: PRO_FEATURE_TYPE;
+    service: SUPPORTED_SERVICES_TYPE;
+    name: string;
+  }[] = [
+    {
+      feature: "feature-google_drive",
+      service: "googledrive",
+      name: "Google Drive",
+    },
+    { feature: "feature-box", service: "box", name: "Box" },
+    { feature: "feature-pcloud", service: "pcloud", name: "pCloud" },
+    {
+      feature: "feature-yandex_disk",
+      service: "yandexdisk",
+      name: "Yandex Disk",
+    },
+    {
+      feature: "feature-koofr",
+      service: "koofr",
+      name: "Koofr",
+    },
+  ];
+
+  for (const { feature, service, name } of toChecked) {
+    console.debug(`checking "${feature}", serviceType=${config.serviceType}`);
+    if (config.serviceType === service) {
+      if (
+        config.pro.enabledProFeatures.filter((x) => x.featureName === feature)
+          .length === 1
+      ) {
+        // good to go
+      } else {
+        errorMsgs.push(
+          `You're trying to use "sync with ${name}" PRO feature but you haven't subscribe to it.`
+        );
+      }
+    } else {
+      // good to go
+    }
+  }
+
+  if (errorMsgs.length !== 0) {
+    throw Error(errorMsgs.join("\n\n"));
+  }
+
+  return true;
+};
@@ -0,0 +1,17 @@
+# checklist for adding new service
+
+1. `fsXxx.ts`
+2. `settingsXxx.ts`
+3. add callback and `xxxConfig` in `baseTypesPro.ts`
+4. add `xxxConfig` to `DEFAULT_SETTINGS` and `RemotelySavePluginSettings` in `main.ts`
+5. add `registerObsidianProtocolHandler`, if undefinded, `let xxxExpired`, expired notice in `main.ts`
+6. add `langs/`
+7. add css into `styles.css`
+8. general `settings.ts` add: config part, chooser, import export
+9. `generateProSettingsPart.ts`
+10. `importExport.ts`
+11. `fsGetter.ts`
+12. `sync.ts` checking for PRO: `checkProRunnableAndFixInplace`
+13. `configPersist.test.ts`
+14. `README.md` add service at menu and detail
+15. `docs/` add service
@@ -0,0 +1,138 @@
+///////////////////////////////////////////////////////////
+// PRO
+//////////////////////////////////////////////////////////
+
+export const COMMAND_CALLBACK_PRO = "remotely-save-cb-pro";
+export const PRO_CLIENT_ID = process.env.DEFAULT_REMOTELYSAVE_CLIENT_ID;
+export const PRO_WEBSITE = process.env.DEFAULT_REMOTELYSAVE_WEBSITE;
+
+export type PRO_FEATURE_TYPE =
+  | "feature-smart_conflict"
+  | "feature-google_drive"
+  | "feature-box"
+  | "feature-pcloud"
+  | "feature-yandex_disk"
+  | "feature-koofr";
+
+export interface FeatureInfo {
+  featureName: PRO_FEATURE_TYPE;
+  enableAtTimeMs: bigint;
+  expireAtTimeMs: bigint;
+}
+
+export interface ProConfig {
+  email?: string;
+  refreshToken?: string;
+  accessToken: string;
+  accessTokenExpiresInMs: number;
+  accessTokenExpiresAtTimeMs: number;
+  enabledProFeatures: FeatureInfo[];
+  credentialsShouldBeDeletedAtTimeMs?: number;
+}
+
+///////////////////////////////////////////////////////////
+// smart conflict
+//////////////////////////////////////////////////////////
+
+export const MERGABLE_SIZE = 1000 * 1000; // 1 MB
+
+///////////////////////////////////////////////////////////
+// Google Drive
+//////////////////////////////////////////////////////////
+
+export interface GoogleDriveConfig {
+  accessToken: string;
+  accessTokenExpiresInMs: number;
+  accessTokenExpiresAtTimeMs: number;
+  refreshToken: string;
+  remoteBaseDir?: string;
+  credentialsShouldBeDeletedAtTimeMs?: number;
+  scope: "https://www.googleapis.com/auth/drive.file";
+  kind: "googledrive";
+}
+
+export const DEFAULT_GOOGLEDRIVE_CLIENT_ID =
+  process.env.DEFAULT_GOOGLEDRIVE_CLIENT_ID;
+export const DEFAULT_GOOGLEDRIVE_CLIENT_SECRET =
+  process.env.DEFAULT_GOOGLEDRIVE_CLIENT_SECRET;
+
+///////////////////////////////////////////////////////////
+// box
+//////////////////////////////////////////////////////////
+
+export const COMMAND_CALLBACK_BOX = "remotely-save-cb-box";
+export const BOX_CLIENT_ID = process.env.DEFAULT_BOX_CLIENT_ID;
+export const BOX_CLIENT_SECRET = process.env.DEFAULT_BOX_CLIENT_SECRET;
+
+export interface BoxConfig {
+  accessToken: string;
+  accessTokenExpiresInMs: number;
+  accessTokenExpiresAtTimeMs: number;
+  refreshToken: string;
+  remoteBaseDir?: string;
+  credentialsShouldBeDeletedAtTimeMs?: number;
+  kind: "box";
+}
+
+///////////////////////////////////////////////////////////
+// pCloud
+//////////////////////////////////////////////////////////
+
+export const COMMAND_CALLBACK_PCLOUD = "remotely-save-cb-pcloud";
+export const PCLOUD_CLIENT_ID = process.env.DEFAULT_PCLOUD_CLIENT_ID;
+export const PCLOUD_CLIENT_SECRET = process.env.DEFAULT_PCLOUD_CLIENT_SECRET;
+
+export interface PCloudConfig {
+  accessToken: string;
+  hostname: "eapi.pcloud.com" | "api.pcloud.com";
+  locationid: 1 | 2;
+  remoteBaseDir?: string;
+  credentialsShouldBeDeletedAtTimeMs?: number;
+  kind: "pcloud";
+
+  /**
+   * @deprecated
+   */
+  emptyFile: "skip" | "error";
+}
+
+///////////////////////////////////////////////////////////
+// Yandex Disk
+//////////////////////////////////////////////////////////
+
+export const COMMAND_CALLBACK_YANDEXDISK = "remotely-save-cb-yandexdisk";
+export const YANDEXDISK_CLIENT_ID = process.env.DEFAULT_YANDEXDISK_CLIENT_ID;
+export const YANDEXDISK_CLIENT_SECRET =
+  process.env.DEFAULT_YANDEXDISK_CLIENT_SECRET;
+
+export interface YandexDiskConfig {
+  accessToken: string;
+  accessTokenExpiresInMs: number;
+  accessTokenExpiresAtTimeMs: number;
+  refreshToken: string;
+  remoteBaseDir?: string;
+  credentialsShouldBeDeletedAtTimeMs?: number;
+  scope: string;
+  kind: "yandexdisk";
+}
+
+///////////////////////////////////////////////////////////
+// Koofr
+//////////////////////////////////////////////////////////
+
+export const COMMAND_CALLBACK_KOOFR = "remotely-save-cb-koofr";
+export const KOOFR_CLIENT_ID = process.env.DEFAULT_KOOFR_CLIENT_ID;
+export const KOOFR_CLIENT_SECRET = process.env.DEFAULT_KOOFR_CLIENT_SECRET;
+
+export interface KoofrConfig {
+  accessToken: string;
+  accessTokenExpiresInMs: number;
+  accessTokenExpiresAtTimeMs: number;
+  refreshToken: string;
+  remoteBaseDir?: string;
+  credentialsShouldBeDeletedAtTimeMs?: number;
+  scope: string;
+  api: string;
+  mountID: string;
+  kind: "koofr";
+}
@@ -0,0 +1,257 @@
+import isEqual from "lodash/isEqual";
+// import {
+//   makePatches,
+//   applyPatches,
+//   stringifyPatches,
+//   parsePatch,
+// } from "@sanity/diff-match-patch";
+import {
+  LCS,
+  diff3Merge,
+  diffComm,
+  diffPatch,
+  mergeDiff3,
+  mergeDigIn,
+  patch,
+} from "node-diff3";
+import type { Entity } from "../../src/baseTypes";
+import { copyFile } from "../../src/copyLogic";
+import type { FakeFs } from "../../src/fsAll";
+import { MERGABLE_SIZE } from "./baseTypesPro";
+
+export function isMergable(a: Entity, b?: Entity) {
+  if (b !== undefined && a.keyRaw !== b.keyRaw) {
+    return false;
+  }
+
+  return (
+    !a.keyRaw.endsWith("/") &&
+    a.sizeRaw <= MERGABLE_SIZE &&
+    (a.keyRaw.endsWith(".md") || a.keyRaw.endsWith(".markdown"))
+  );
+}
+
+/**
+ * slightly modify to adjust in markdown context
+ * @param a
+ * @param o
+ * @param b
+ */
+function mergeDigInModified(a: string, o: string, b: string) {
+  const { conflict, result } = mergeDigIn(a, o, b);
+  for (let index = 0; index < result.length; ++index) {
+    if (["<<<<<<<", "=======", ">>>>>>>"].contains(result[index])) {
+      result[index] = "`" + result[index] + "`";
+    }
+  }
+  return {
+    conflict,
+    result,
+  };
+}
+
+function getLCSText(a: string, b: string) {
+  const aa = a.split("\n");
+  const bb = b.split("\n");
+  let raw = LCS(aa, bb);
+
+  const k: string[] = [];
+
+  do {
+    k.unshift(aa[raw.buffer1index]);
+
+    raw = raw.chain as any;
+  } while (raw !== null && raw !== undefined && raw.buffer1index !== -1);
+
+  return k.join("\n");
+}
+
+/**
+ * It's tricky. We find LCS then pretend it's the original text
+ * @param a
+ * @param b
+ * @returns
+ */
+function twoWayMerge(a: string, b: string): string {
+  // const c = getLCSText(a, b);
+  // const patches = makePatches(c, a);
+  // const [d] = applyPatches(patches, b);
+  const c = getLCSText(a, b);
+  const d = mergeDigInModified(a, c, b).result.join("\n");
+  return d;
+}
+
+/**
+ * Originally three way merge.
+ * @param a
+ * @param b
+ * @param orig
+ * @returns
+ */
+function threeWayMerge(a: string, b: string, orig: string) {
+  return mergeDigInModified(a, orig, b).result.join("\n");
+}
+
+export async function mergeFile(
+  key: string,
+  left: FakeFs,
+  right: FakeFs,
+  contentOrig: ArrayBuffer | null | undefined
+) {
+  // console.debug(
+  //   `mergeFile: key=${key}, left=${left.kind}, right=${right.kind}`
+  // );
+  if (key.endsWith("/")) {
+    throw Error(`should not call ${key} in mergeFile`);
+  }
+
+  if (!key.endsWith(".md") && !key.endsWith(".markdown")) {
+    throw Error(`currently only support markdown files in mergeFile`);
+  }
+
+  const [contentLeft, contentRight] = await Promise.all([
+    left.readFile(key),
+    right.readFile(key),
+  ]);
+
+  let newArrayBuffer: ArrayBuffer | undefined = undefined;
+  const decoder = new TextDecoder("utf-8");
+
+  if (isEqual(contentLeft, contentRight)) {
+    // we are lucky enough
+    newArrayBuffer = contentLeft;
+    // TODO: save the write
+  } else {
+    if (contentOrig === null || contentOrig === undefined) {
+      const newText = twoWayMerge(
+        decoder.decode(contentLeft),
+        decoder.decode(contentRight)
+      );
+      // no need to worry about the offset here because the array is new and not sliced
+      newArrayBuffer = new TextEncoder().encode(newText).buffer;
+    } else {
+      const newText = threeWayMerge(
+        decoder.decode(contentLeft),
+        decoder.decode(contentRight),
+        decoder.decode(contentOrig)
+      );
+      newArrayBuffer = new TextEncoder().encode(newText).buffer;
+    }
+  }
+
+  const mtime = Date.now();
+
+  // left (local) must wait for the right
+  // because the mtime might be different after upload
+  // upload firstly
+  const rightEntity = await right.writeFile(key, newArrayBuffer, mtime, mtime);
+  // write local secondly
+  const leftEntity = await left.writeFile(
+    key,
+    newArrayBuffer,
+    rightEntity.mtimeCli ?? mtime,
+    rightEntity.mtimeCli ?? mtime
+  );
+
+  return {
+    entity: rightEntity,
+    content: newArrayBuffer,
+  };
+}
+
+export function getFileRename(key: string) {
+  if (
+    key === "" ||
+    key === "." ||
+    key === ".." ||
+    key === "/" ||
+    key.endsWith("/")
+  ) {
+    throw Error(`we cannot rename key=${key}`);
+  }
+
+  const segsPath = key.split("/");
+  const name = segsPath[segsPath.length - 1];
+  const segsName = name.split(".");
+
+  if (segsName.length === 0) {
+    throw Error(`we cannot rename key=${key}`);
+  } else if (segsName.length === 1) {
+    // name = "kkk" without any dot
+    segsPath[segsPath.length - 1] = `${name}.dup`;
+  } else if (segsName.length === 2) {
+    if (segsName[0] === "") {
+      // name = ".kkkk" with leading dot
+      segsPath[segsPath.length - 1] = `${name}.dup`;
+    } else if (segsName[1] === "") {
+      // name = "kkkk." with tailing dot
+      segsPath[segsPath.length - 1] = `${segsName[0]}.dup`;
+    } else {
+      // name = "aaa.bbb" normally
+      segsPath[segsPath.length - 1] = `${segsName[0]}.dup.${segsName[1]}`;
+    }
+  } else {
+    // name = "[...].bbb.ccc"
+    const firstPart = segsName.slice(0, segsName.length - 1).join(".");
+    const thirdPart = segsName[segsName.length - 1];
+    segsPath[segsPath.length - 1] = `${firstPart}.dup.${thirdPart}`;
+  }
+  const res = segsPath.join("/");
+  return res;
+}
+
+/**
+ * local: x.md -> x.dup.md -> upload to remote
+ * remote: x.md -> download to local -> using original name x.md
+ */
+export async function duplicateFile(
+  key: string,
+  left: FakeFs,
+  right: FakeFs,
+  uploadCallback: (entity: Entity) => Promise<any>,
+  downloadCallback: (entity: Entity) => Promise<any>
+) {
+  let key2 = getFileRename(key);
+  let usable = false;
+  do {
+    try {
+      const s = await left.stat(key2);
+      if (s === null || s === undefined) {
+        throw Error(`not exist $${key2}`);
+      }
+      console.debug(`key2=${key2} exists, cannot use for new file`);
+      key2 = getFileRename(key2);
+      console.debug(`key2=${key2} is prepared for next try`);
+    } catch (e) {
+      // not exists, exactly what we want
+      console.debug(`key2=${key2} doesn't exist, usable for new file`);
+      usable = true;
+    }
+  } while (!usable);
+  await left.rename(key, key2);
+
+  /**
+   * x.dup.md -> upload to remote
+   */
+  async function f1() {
+    const k = await copyFile(key2, left, right);
+    await uploadCallback(k.entity);
+    return k.entity;
+  }
+
+  /**
+   * x.md -> download to local
+   */
+  async function f2() {
+    const k = await copyFile(key, right, left);
+    await downloadCallback(k.entity);
+    return k.entity;
+  }
+
+  const [resUpload, resDownload] = await Promise.all([f1(), f2()]);
+
+  return {
+    upload: resUpload,
+    download: resDownload,
+  };
+}
@@ -0,0 +1,926 @@
+import {
+  BoxOAuth,
+  OAuthConfig,
+} from "box-typescript-sdk-gen/lib/box/oauth.generated";
+import * as mime from "mime-types";
+import { DEFAULT_CONTENT_TYPE, type Entity } from "../../src/baseTypes";
+import { FakeFs } from "../../src/fsAll";
+import {
+  BOX_CLIENT_ID,
+  BOX_CLIENT_SECRET,
+  type BoxConfig,
+  COMMAND_CALLBACK_BOX,
+} from "./baseTypesPro";
+
+import { BoxDeveloperTokenAuth } from "box-typescript-sdk-gen/lib/box/developerTokenAuth.generated";
+import { BoxClient } from "box-typescript-sdk-gen/lib/client.generated";
+import type { FileFull } from "box-typescript-sdk-gen/lib/schemas/fileFull.generated";
+import type { FileFullOrFolderMiniOrWebLink } from "box-typescript-sdk-gen/lib/schemas/fileFullOrFolderMiniOrWebLink.generated";
+import type { FolderFull } from "box-typescript-sdk-gen/lib/schemas/folderFull.generated";
+import type { Items } from "box-typescript-sdk-gen/lib/schemas/items.generated";
+import PQueue from "p-queue";
+import {
+  delay,
+  getFolderLevels,
+  getSha1,
+  splitFileSizeToChunkRanges,
+  unixTimeToStr,
+} from "../../src/misc";
+
+export const DEFAULT_BOX_CONFIG: BoxConfig = {
+  accessToken: "",
+  refreshToken: "",
+  accessTokenExpiresInMs: 0,
+  accessTokenExpiresAtTimeMs: 0,
+  credentialsShouldBeDeletedAtTimeMs: 0, // 60 days https://developer.box.com/guides/authentication/tokens/refresh/
+  kind: "box",
+};
+
+export const generateAuthUrl = () => {
+  const config = new OAuthConfig({
+    clientId: BOX_CLIENT_ID ?? "",
+    clientSecret: BOX_CLIENT_SECRET ?? "",
+  });
+  const oauth = new BoxOAuth({ config: config });
+
+  // the URL to redirect the user to
+  const authorize_url = oauth.getAuthorizeUrl({
+    redirectUri: `obsidian://${COMMAND_CALLBACK_BOX}`,
+  });
+  // console.debug(authorize_url)
+  return authorize_url;
+};
+
+/**
+ * https://developer.box.com/guides/authentication/oauth2/without-sdk/
+ */
+export const sendAuthReq = async (authCode: string, errorCallBack: any) => {
+  try {
+    const k = {
+      code: authCode,
+      grant_type: "authorization_code",
+      client_id: BOX_CLIENT_ID ?? "",
+      client_secret: BOX_CLIENT_SECRET ?? "",
+      // redirect_uri: `obsidian://${COMMAND_CALLBACK_BOX}`,
+    };
+    // console.debug(k);
+    const resp1 = await fetch(`https://api.box.com/oauth2/token`, {
+      method: "POST",
+      body: new URLSearchParams(k),
+    });
+    const resp2 = await resp1.json();
+    return resp2;
+  } catch (e) {
+    console.error(e);
+    if (errorCallBack !== undefined) {
+      await errorCallBack(e);
+    }
+  }
+};
+
+/**
+ * https://developer.box.com/guides/authentication/tokens/refresh/
+ */
+export const sendRefreshTokenReq = async (refreshToken: string) => {
+  console.debug(`refreshing token`);
+  const x = await fetch("https://api.box.com/oauth2/token", {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/x-www-form-urlencoded",
+    },
+    body: new URLSearchParams({
+      client_id: BOX_CLIENT_ID ?? "",
+      client_secret: BOX_CLIENT_SECRET ?? "",
+      grant_type: "refresh_token",
+      refresh_token: refreshToken,
+    }).toString(),
+  });
+
+  if (x.status === 200) {
+    const y = await x.json();
+    console.debug(`new token obtained`);
+    return y;
+  } else {
+    throw Error(`cannot refresh an access token`);
+  }
+};
+
+export const setConfigBySuccessfullAuthInplace = async (
+  config: BoxConfig,
+  authRes: any,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+) => {
+  if (authRes.access_token === undefined || authRes.access_token === "") {
+    throw Error(
+      `you should not save the setting for ${JSON.stringify(authRes)}`
+    );
+  }
+
+  config.accessToken = authRes.access_token;
+  config.accessTokenExpiresAtTimeMs =
+    Date.now() + authRes.expires_in * 1000 - 5 * 60 * 1000;
+  config.accessTokenExpiresInMs = authRes.expires_in * 1000;
+  config.refreshToken = authRes.refresh_token || config.refreshToken;
+
+  // manually set it expired after 60 days;
+  config.credentialsShouldBeDeletedAtTimeMs =
+    Date.now() + 1000 * 60 * 60 * 24 * 59;
+
+  await saveUpdatedConfigFunc?.();
+
+  console.info("finish updating local info of Box token");
+};
+
+interface CreateUploadSessionRawResponse {
+  id: string;
+  type: "upload_session";
+  num_parts_processed: number;
+  part_size: number;
+  session_endpoints: {
+    abort: string;
+    commit: string;
+    list_parts: string;
+    log_event: string;
+    status: string;
+    upload_part: string;
+  };
+  session_expires_at: string;
+  total_parts: number;
+}
+
+interface UploadChunkRawResponse {
+  part: {
+    offset: number;
+    part_id: string;
+    sha1: string;
+    size: number;
+  };
+}
+
+interface BoxEntity extends Entity {
+  id: string;
+  parentID: string | undefined;
+  parentIDPath: string | undefined;
+  isFolder: boolean;
+  hashSha1: string | undefined;
+}
+
+const fromBoxItemToEntity = (
+  boxItem: FileFullOrFolderMiniOrWebLink | FolderFull,
+  parentID: string,
+  parentFolderPath: string | undefined /* for bfs */
+): BoxEntity => {
+  if (parentID === undefined || parentID === "" || parentID === "0") {
+    throw Error(`parentID=${parentID} should not be in fromBoxItemToEntity`);
+  }
+
+  let keyRaw = boxItem.name!;
+
+  if (
+    parentFolderPath !== undefined &&
+    parentFolderPath !== "" &&
+    parentFolderPath !== "/"
+  ) {
+    if (!parentFolderPath.endsWith("/")) {
+      throw Error(
+        `parentFolderPath=${parentFolderPath} should not be in fromFileToBoxEntity`
+      );
+    }
+    keyRaw = `${parentFolderPath}${boxItem.name!}`;
+  }
+
+  if (boxItem.type === "folder") {
+    keyRaw = `${keyRaw}/`;
+    const mtime =
+      (boxItem as FolderFull).contentModifiedAt?.value.valueOf() ??
+      (boxItem as FolderFull).modifiedAt?.value.valueOf() ??
+      Date.now();
+    return {
+      key: keyRaw,
+      keyRaw: keyRaw,
+      mtimeCli: mtime,
+      mtimeSvr: mtime,
+      id: boxItem.id,
+      parentID: parentID,
+      isFolder: true,
+      size: 0,
+      sizeRaw: 0,
+      hash: undefined,
+      hashSha1: undefined,
+      parentIDPath: parentFolderPath,
+    };
+  } else if (boxItem.type === "file") {
+    const mtime =
+      boxItem.contentModifiedAt?.value.valueOf() ??
+      boxItem.modifiedAt?.value.valueOf() ??
+      Date.now();
+    return {
+      key: keyRaw,
+      keyRaw: keyRaw,
+      mtimeCli: mtime,
+      mtimeSvr: mtime,
+      id: boxItem.id,
+      parentID: parentID,
+      isFolder: false,
+      size: boxItem.size!,
+      sizeRaw: boxItem.size!,
+      hash: boxItem.sha1,
+      hashSha1: boxItem.sha1,
+      parentIDPath: parentFolderPath,
+    };
+  } else {
+    throw Error(`we do not support web link Box item`);
+  }
+};
+
+const fromRawResponseToEntity = (
+  boxItem: any,
+  parentID: string,
+  parentFolderPath: string | undefined /* for bfs */
+): BoxEntity => {
+  if (parentID === undefined || parentID === "" || parentID === "0") {
+    throw Error(
+      `parentID=${parentID} should not be in fromRawResponseToEntity`
+    );
+  }
+
+  let keyRaw = boxItem.name!;
+
+  if (
+    parentFolderPath !== undefined &&
+    parentFolderPath !== "" &&
+    parentFolderPath !== "/"
+  ) {
+    if (!parentFolderPath.endsWith("/")) {
+      throw Error(
+        `parentFolderPath=${parentFolderPath} should not be in fromFileToBoxEntity`
+      );
+    }
+    keyRaw = `${parentFolderPath}${boxItem.name!}`;
+  }
+
+  if (boxItem.type === "folder") {
+    keyRaw = `${keyRaw}/`;
+  } else if (boxItem.type === "file") {
+    // pass
+  } else {
+    throw Error(`we do not support web link Box item`);
+  }
+
+  const mtimeStr = boxItem.content_modified_at ?? boxItem.modified_at;
+  let mtime = Date.now();
+  if (mtimeStr !== undefined) {
+    mtime = new Date(mtimeStr).valueOf();
+  }
+
+  return {
+    key: keyRaw,
+    keyRaw: keyRaw,
+    mtimeCli: mtime,
+    mtimeSvr: mtime,
+    id: boxItem.id,
+    parentID: parentID,
+    isFolder: false,
+    size: boxItem.size ?? 0,
+    sizeRaw: boxItem.size ?? 0,
+    hash: boxItem.sha1 ?? undefined,
+    hashSha1: boxItem.sha1 ?? undefined,
+    parentIDPath: parentFolderPath,
+  };
+};
+
+export class FakeFsBox extends FakeFs {
+  kind: string;
+  boxConfig: BoxConfig;
+  remoteBaseDir: string;
+  vaultFolderExists: boolean;
+  saveUpdatedConfigFunc: () => Promise<any>;
+
+  keyToBoxEntity: Record<string, BoxEntity>;
+
+  baseDirID: string;
+
+  constructor(
+    boxConfig: BoxConfig,
+    vaultName: string,
+    saveUpdatedConfigFunc: () => Promise<any>
+  ) {
+    super();
+    this.kind = "box";
+    this.boxConfig = boxConfig;
+    this.remoteBaseDir = this.boxConfig.remoteBaseDir || vaultName || "";
+    this.vaultFolderExists = false;
+    this.saveUpdatedConfigFunc = saveUpdatedConfigFunc;
+    this.keyToBoxEntity = {};
+    this.baseDirID = "";
+  }
+
+  async _init() {
+    const access = await this._getAccessToken();
+
+    if (this.vaultFolderExists) {
+      // pass
+    } else {
+      const auth = new BoxDeveloperTokenAuth({ token: access });
+      const client = new BoxClient({ auth });
+
+      // find
+      let itemsInRoot: Items | undefined = undefined;
+
+      let offset = 0;
+      const limitPerPage = 1000; // max 1000
+
+      while (!this.vaultFolderExists) {
+        itemsInRoot = await client.folders.getFolderItems("0", {
+          queryParams: {
+            fields: [
+              "id",
+              "type",
+              "name",
+              "sha1",
+              "size",
+              "created_at",
+              "modified_at",
+              "expires_at",
+              "parent",
+              "content_created_at",
+              "content_modified_at",
+              "etag",
+            ],
+            offset: offset,
+            limit: limitPerPage,
+          },
+        });
+        // console.debug(`this.remoteBaseDir=${this.remoteBaseDir}`);
+        // console.debug(`itemsInRoot:`);
+        // console.debug(itemsInRoot);
+        if (
+          (itemsInRoot.entries?.filter((x) => x.name === this.remoteBaseDir)
+            .length ?? 0) > 0
+        ) {
+          // we find it!
+          const f = itemsInRoot.entries?.filter(
+            (x) => x.name === this.remoteBaseDir
+          )[0]!;
+          this.baseDirID = f.id;
+          this.vaultFolderExists = true;
+          break;
+        }
+
+        if ((itemsInRoot.offset ?? 0) >= (itemsInRoot.totalCount ?? 0)) {
+          break;
+        }
+
+        offset += limitPerPage;
+      }
+
+      if (!this.vaultFolderExists) {
+        // create
+        const f = await client.folders.createFolder({
+          name: this.remoteBaseDir,
+          parent: { id: "0" },
+        });
+        this.baseDirID = f.id;
+        this.vaultFolderExists = true;
+      }
+    }
+  }
+
+  async _getAccessToken() {
+    if (this.boxConfig.refreshToken === "") {
+      throw Error("The user has not manually auth yet.");
+    }
+
+    const ts = Date.now();
+    const comp = this.boxConfig.accessTokenExpiresAtTimeMs > ts;
+    // console.debug(`this.boxConfig.accessTokenExpiresAtTimeMs=${this.boxConfig.accessTokenExpiresAtTimeMs},ts=${ts},comp=${comp}`)
+    if (comp) {
+      return this.boxConfig.accessToken;
+    }
+
+    // refresh
+    const k = await sendRefreshTokenReq(this.boxConfig.refreshToken);
+    this.boxConfig.accessToken = k.access_token;
+    this.boxConfig.accessTokenExpiresInMs = k.expires_in * 1000;
+    this.boxConfig.accessTokenExpiresAtTimeMs =
+      ts + k.expires_in * 1000 - 60 * 2 * 1000;
+    this.boxConfig.refreshToken =
+      k.refresh_token || this.boxConfig.refreshToken;
+    await this.saveUpdatedConfigFunc();
+    console.info("Box accessToken updated");
+    return this.boxConfig.accessToken;
+  }
+
+  async walk(): Promise<Entity[]> {
+    await this._init();
+
+    const allFiles: BoxEntity[] = [];
+
+    // bfs
+    const queue = new PQueue({
+      concurrency: 5, // TODO: make it configurable?
+      autoStart: true,
+    });
+    queue.on("error", (error) => {
+      queue.pause();
+      queue.clear();
+      throw error;
+    });
+
+    let parents = [
+      {
+        id: this.baseDirID, // special init, from already created root folder ID
+        folderPath: "",
+      },
+    ];
+
+    while (parents.length !== 0) {
+      // console.debug('enter while loop 1 of parents array');
+      const children: typeof parents = [];
+      for (const { id, folderPath } of parents) {
+        queue.add(async () => {
+          const filesUnderFolder = await this._walkFolder(id, folderPath);
+          for (const f of filesUnderFolder) {
+            allFiles.push(f);
+            if (f.isFolder) {
+              // keyRaw itself already has a tailing slash, no more slash here
+              // keyRaw itself also already has full path
+              const child = {
+                id: f.id,
+                folderPath: f.keyRaw,
+              };
+              // console.debug(
+              //   `looping result of _walkFolder(${id},${folderPath}), adding child=${JSON.stringify(
+              //     child
+              //   )}`
+              // );
+              children.push(child);
+            }
+          }
+        });
+      }
+      await queue.onIdle();
+      parents = children;
+    }
+
+    // console.debug(`in the end of walk:`);
+    // console.debug(allFiles);
+    // console.debug(this.keyToBoxEntity);
+    return allFiles;
+  }
+
+  async _walkFolder(
+    parentID: string,
+    parentFolderPath: string
+  ): Promise<BoxEntity[]> {
+    // console.debug(
+    //   `input of single level: parentID=${parentID}, parentFolderPath=${parentFolderPath}`
+    // );
+    const filesOneLevel: BoxEntity[] = [];
+    const access = await this._getAccessToken();
+    const auth = new BoxDeveloperTokenAuth({ token: access });
+    const client = new BoxClient({ auth });
+
+    if (parentID === undefined || parentID === "" || parentID === "root") {
+      // we should never start from root
+      // because we encapsulate the vault inside a folder
+      throw Error(`something goes wrong walking folder`);
+    }
+
+    let items: Items | undefined = undefined;
+
+    let offset = 0;
+    const limitPerPage = 1000; // max 1000
+    do {
+      // console.debug(`entering paging of parentID=${parentID}, offset=${offset}`);
+      items = await client.folders.getFolderItems(parentID, {
+        queryParams: {
+          fields: [
+            "id",
+            "type",
+            "name",
+            "sha1",
+            "size",
+            "created_at",
+            "modified_at",
+            "expires_at",
+            "parent",
+            "content_created_at",
+            "content_modified_at",
+            "etag",
+          ],
+          offset: offset,
+          limit: limitPerPage,
+        },
+      });
+      // console.debug(`items of parentID=${parentID},offset=${offset}:`);
+      // console.debug(items);
+
+      for (const item of items.entries ?? []) {
+        const entity = fromBoxItemToEntity(item, parentID, parentFolderPath);
+        this.keyToBoxEntity[entity.keyRaw] = entity; // build cache
+        filesOneLevel.push(entity);
+      }
+
+      offset += limitPerPage;
+      // console.debug(`end of current loop parentID=${parentID}, and offset=${offset}`);
+    } while (offset < (items?.totalCount ?? 0));
+
+    return filesOneLevel;
+  }
+
+  async walkPartial(): Promise<Entity[]> {
+    await this._init();
+    const filesInLevel = await this._walkFolder(this.baseDirID, "");
+    return filesInLevel;
+  }
+
+  async stat(key: string): Promise<Entity> {
+    await this._init();
+
+    // TODO: we already have a cache, should we call again?
+    const cachedEntity = this.keyToBoxEntity[key];
+    const fileID = cachedEntity?.id;
+    if (cachedEntity === undefined || fileID === undefined) {
+      throw Error(`no fileID found for key=${key}`);
+    }
+
+    const access = await this._getAccessToken();
+    const auth = new BoxDeveloperTokenAuth({ token: access });
+    const client = new BoxClient({ auth });
+
+    let f: FileFull | FolderFull | undefined;
+    if (cachedEntity.isFolder) {
+      f = await client.folders.getFolderById(fileID);
+    } else {
+      f = await client.files.getFileById(fileID);
+    }
+    const entity = fromBoxItemToEntity(
+      f,
+      cachedEntity.parentID!,
+      cachedEntity.parentIDPath!
+    );
+    // insert back to cache?? to update it??
+    this.keyToBoxEntity[key] = entity;
+    return entity;
+  }
+
+  async mkdir(
+    key: string,
+    mtime?: number | undefined,
+    ctime?: number | undefined
+  ): Promise<Entity> {
+    if (!key.endsWith("/")) {
+      throw Error(`you should not mkdir on key=${key}`);
+    }
+
+    await this._init();
+
+    const cachedEntity = this.keyToBoxEntity[key];
+    const fileID = cachedEntity?.id;
+    if (cachedEntity !== undefined && fileID !== undefined) {
+      return cachedEntity;
+    }
+
+    // xxx/ => ["xxx"]
+    // xxx/yyy/zzz/ => ["xxx", "xxx/yyy", "xxx/yyy/zzz"]
+    const folderLevels = getFolderLevels(key);
+    let parentFolderPath: string | undefined = undefined;
+    let parentID: string | undefined = undefined;
+    if (folderLevels.length === 0) {
+      throw Error(`cannot getFolderLevels of ${key}`);
+    } else if (folderLevels.length === 1) {
+      parentID = this.baseDirID;
+      parentFolderPath = ""; // ignore base dir
+    } else {
+      // length > 1
+      parentFolderPath = `${folderLevels[folderLevels.length - 2]}/`;
+      if (!(parentFolderPath in this.keyToBoxEntity)) {
+        throw Error(
+          `parent of ${key}: ${parentFolderPath} is not created before??`
+        );
+      }
+      parentID = this.keyToBoxEntity[parentFolderPath].id;
+    }
+
+    // xxx/yyy/zzz/ => ["xxx", "xxx/yyy", "xxx/yyy/zzz"] => "xxx/yyy/zzz" => "zzz"
+    let folderItselfWithoutSlash = folderLevels[folderLevels.length - 1];
+    folderItselfWithoutSlash = folderItselfWithoutSlash.split("/").pop()!;
+
+    const access = await this._getAccessToken();
+    const auth = new BoxDeveloperTokenAuth({ token: access });
+    const client = new BoxClient({ auth });
+    const f = await client.folders.createFolder({
+      name: folderItselfWithoutSlash,
+      parent: { id: parentID },
+    });
+
+    const entity = fromBoxItemToEntity(f, parentID, parentFolderPath);
+    // insert into cache
+    this.keyToBoxEntity[key] = entity;
+    return entity;
+  }
+
+  async writeFile(
+    key: string,
+    content: ArrayBuffer,
+    mtime: number,
+    ctime: number
+  ): Promise<Entity> {
+    if (key.endsWith("/")) {
+      throw Error(`should not call writeFile on ${key}`);
+    }
+
+    await this._init();
+
+    const prevCachedEntity: BoxEntity | undefined = this.keyToBoxEntity[key];
+    const prevFileID: string | undefined = prevCachedEntity?.id;
+
+    const contentType =
+      mime.contentType(mime.lookup(key) || DEFAULT_CONTENT_TYPE) ||
+      DEFAULT_CONTENT_TYPE;
+
+    let parentID: string | undefined = undefined;
+    let parentFolderPath: string | undefined = undefined;
+
+    // "xxx" => []
+    // "xxx/yyy/zzz.md" => ["xxx", "xxx/yyy"]
+    const folderLevels = getFolderLevels(key);
+    if (folderLevels.length === 0) {
+      // root
+      parentID = this.baseDirID;
+      parentFolderPath = "";
+    } else {
+      parentFolderPath = `${folderLevels[folderLevels.length - 1]}/`;
+      if (!(parentFolderPath in this.keyToBoxEntity)) {
+        throw Error(
+          `parent of ${key}: ${parentFolderPath} is not created before??`
+        );
+      }
+      parentID = this.keyToBoxEntity[parentFolderPath].id;
+    }
+
+    const fileItself = key.split("/").pop()!;
+
+    const BIG_FILE_THRESHOLD = 20000000; // box api hard coded...
+    if (content.byteLength <= BIG_FILE_THRESHOLD) {
+      const formData = new FormData();
+      const attributes = {
+        name: fileItself,
+        parent: { id: parentID },
+        content_created_at: unixTimeToStr(ctime),
+        content_modified_at: unixTimeToStr(mtime),
+      };
+      formData.append("attributes", JSON.stringify(attributes));
+      formData.append("file", new Blob([content], { type: contentType }));
+
+      let url = "";
+      if (prevFileID === undefined) {
+        // create new file
+        // https://developer.box.com/reference/post-files-content/
+        url = `https://upload.box.com/api/2.0/files/content`;
+      } else {
+        // update new file
+        // https://developer.box.com/reference/post-files-id-content/
+        url = `https://upload.box.com/api/2.0/files/${prevFileID}/content`;
+      }
+
+      const res = await fetch(url, {
+        method: "POST",
+        headers: {
+          Authorization: `Bearer ${await this._getAccessToken()}`,
+        },
+        body: formData,
+      });
+
+      if (res.status !== 200 && res.status !== 201) {
+        throw Error(
+          `create file ${key} failed! attributes=${JSON.stringify(attributes)}`
+        );
+      }
+
+      const res2 = await res.json();
+      if (res2.entries === undefined) {
+        throw Error(`upload small file ${key} failed!`);
+      }
+      const entity = fromRawResponseToEntity(
+        res2.entries[0],
+        parentID,
+        parentFolderPath
+      );
+      this.keyToBoxEntity[key] = entity;
+      // console.debug(`entity after upload=${JSON.stringify(entity, null, 2)}`);
+      return entity;
+    } else {
+      // create session
+
+      let url = "";
+      if (prevFileID === undefined) {
+        // https://developer.box.com/reference/post-files-upload-sessions/
+        url = "https://upload.box.com/api/2.0/files/upload_sessions";
+      } else {
+        // https://developer.box.com/reference/post-files-id-upload-sessions/
+        url = `https://upload.box.com/api/2.0/files/${prevFileID}/upload_sessions`;
+      }
+
+      const sessionRes1 = await fetch(url, {
+        method: "POST",
+        headers: {
+          Authorization: `Bearer ${await this._getAccessToken()}`,
+          "Content-Type": "application/json",
+        },
+        body: JSON.stringify({
+          file_name: fileItself,
+          file_size: content.byteLength,
+          folder_id: parentID,
+        }),
+      });
+      if (sessionRes1.status !== 200 && sessionRes1.status !== 201) {
+        throw Error(
+          `Create upload session for ${key} failed! Response header=${JSON.stringify(
+            sessionRes1.headers
+          )}`
+        );
+      }
+      const sessionRes2: CreateUploadSessionRawResponse =
+        await sessionRes1.json();
+      // console.debug(sessionRes2);
+
+      // upload by chunks
+      const sizePerChunk = sessionRes2.part_size;
+      const chunkRanges = splitFileSizeToChunkRanges(
+        content.byteLength,
+        sizePerChunk
+      );
+      // TODO: parallel
+      const partsResult: UploadChunkRawResponse[] = [];
+      for (const { start, end } of chunkRanges) {
+        const subContent = content.slice(start, end + 1);
+        const sha1 = await getSha1(subContent, "base64");
+        const res = await fetch(sessionRes2.session_endpoints.upload_part, {
+          method: "PUT",
+          headers: {
+            Authorization: `Bearer ${await this._getAccessToken()}`,
+            // "Content-Length": `${end - start + 1}`, // the number of bytes in the current chunk
+            "Content-Range": `bytes ${start}-${end}/${content.byteLength}`,
+            "Content-Type": "application/octet-stream",
+            digest: `sha=${sha1}`,
+          },
+          body: subContent,
+        });
+        if (res.status !== 200 && res.status !== 201) {
+          throw Error(
+            `Upload chunk for ${key}, ${start}-${end} failed! Response header=${JSON.stringify(
+              res.headers
+            )}`
+          );
+        }
+
+        partsResult.push((await res.json()) as UploadChunkRawResponse);
+      }
+      // commit?
+      const sha1 = await getSha1(content, "base64");
+      let status = 202;
+      let tries = 0;
+      do {
+        // console.debug(`begin commit key=${key} for tries=${tries}`)
+        const commitRes1 = await fetch(sessionRes2.session_endpoints.commit, {
+          method: "POST",
+          headers: {
+            Authorization: `Bearer ${await this._getAccessToken()}`,
+
+            "Content-Type": "application/json",
+            digest: `sha=${sha1}`,
+          },
+          body: JSON.stringify({
+            parts: partsResult.map((p) => p.part),
+            attributes: {
+              content_modified_at: unixTimeToStr(mtime, false),
+              content_created_at: unixTimeToStr(ctime, false),
+            },
+          }),
+        });
+        status = commitRes1.status;
+        // console.debug(`status===${status} for tries=${tries},key=${key}`)
+        if (status === 200 || status === 201) {
+          const commitRes2 = await commitRes1.json();
+          if (commitRes2.entries === undefined) {
+            throw Error(`Upload big file ${key} failed!`);
+          }
+          const entity = fromRawResponseToEntity(
+            commitRes2.entries[0],
+            parentID,
+            parentFolderPath
+          );
+          this.keyToBoxEntity[key] = entity;
+          // console.debug(
+          //   `entity after upload=${JSON.stringify(entity, null, 2)}`
+          // );
+          return entity;
+        } else if (status === 202) {
+          await delay(500);
+          tries += 1;
+        } else {
+          throw Error(
+            `Commit all chunks for ${key} failed! Response header=${JSON.stringify(
+              commitRes1.headers
+            )}`
+          );
+        }
+        // console.debug(`end commit key=${key}, currently status===${status}, tries===${tries} for next loop`)
+      } while (status === 202 && tries < 4);
+      throw Error(`Commit all chunks for ${key} failed! No idea what happened`);
+    }
+  }
+
+  async readFile(key: string): Promise<ArrayBuffer> {
+    await this._init();
+
+    const cachedEntity = this.keyToBoxEntity[key];
+    const fileID = cachedEntity?.id;
+    if (cachedEntity === undefined || fileID === undefined) {
+      throw Error(`no fileID found for key=${key}`);
+    }
+
+    const res1 = await fetch(
+      `https://api.box.com/2.0/files/${fileID}/content`,
+      {
+        method: "GET",
+        headers: {
+          Authorization: `Bearer ${await this._getAccessToken()}`,
+        },
+      }
+    );
+    if (res1.status !== 200) {
+      throw Error(
+        `Cannot download file ${key} with id ${fileID}. Response header=${JSON.stringify(
+          res1.headers
+        )}`
+      );
+    }
+    const res2 = await res1.arrayBuffer();
+    return res2;
+  }
+
+  async rename(key1: string, key2: string): Promise<void> {
+    throw new Error("Method not implemented.");
+  }
+
+  async rm(key: string): Promise<void> {
+    await this._init();
+
+    const cachedEntity = this.keyToBoxEntity[key];
+    const fileID = cachedEntity?.id;
+    if (cachedEntity === undefined || fileID === undefined) {
+      throw Error(`no fileID found for key=${key}`);
+    }
+
+    const access = await this._getAccessToken();
+    const auth = new BoxDeveloperTokenAuth({ token: access });
+    const client = new BoxClient({ auth });
+
+    if (cachedEntity.isFolder) {
+      await client.folders.deleteFolderById(fileID, {
+        queryParams: { recursive: true },
+      });
+    } else {
+      await client.files.deleteFileById(fileID);
+    }
+  }
+
+  async checkConnect(callbackFunc?: any): Promise<boolean> {
+    // if we can init, we can connect
+    try {
+      await this._init();
+      return true;
+    } catch (err) {
+      console.debug(err);
+      callbackFunc?.(err);
+      return false;
+    }
+  }
+  async getUserDisplayName(): Promise<string> {
+    throw new Error("Method not implemented.");
+  }
+
+  /**
+   * https://developer.box.com/guides/authentication/tokens/revoke/
+   */
+  async revokeAuth(): Promise<any> {
+    await fetch(`https://api.box.com/oauth2/revoke`, {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/x-www-form-urlencoded",
+      },
+      body: new URLSearchParams({
+        client_id: BOX_CLIENT_ID ?? "",
+        client_secret: BOX_CLIENT_SECRET ?? "",
+        token: this.boxConfig.refreshToken,
+      }).toString(),
+    });
+  }
+
+  allowEmptyFile(): boolean {
+    return true;
+  }
+}
@@ -0,0 +1,766 @@
+// https://developers.google.com/identity/protocols/oauth2/native-app
+// https://developers.google.com/identity/protocols/oauth2/javascript-implicit-flow
+// https://developers.google.com/identity/protocols/oauth2/web-server
+
+import { entries } from "lodash";
+import * as mime from "mime-types";
+import { requestUrl } from "obsidian";
+import PQueue from "p-queue";
+import { DEFAULT_CONTENT_TYPE, type Entity } from "../../src/baseTypes";
+import { FakeFs } from "../../src/fsAll";
+import {
+  getFolderLevels,
+  splitFileSizeToChunkRanges,
+  unixTimeToStr,
+} from "../../src/misc";
+import {
+  DEFAULT_GOOGLEDRIVE_CLIENT_ID,
+  DEFAULT_GOOGLEDRIVE_CLIENT_SECRET,
+  type GoogleDriveConfig,
+} from "./baseTypesPro";
+
+export const DEFAULT_GOOGLEDRIVE_CONFIG: GoogleDriveConfig = {
+  accessToken: "",
+  refreshToken: "",
+  accessTokenExpiresInMs: 0,
+  accessTokenExpiresAtTimeMs: 0,
+  credentialsShouldBeDeletedAtTimeMs: 0,
+  scope: "https://www.googleapis.com/auth/drive.file",
+  kind: "googledrive",
+};
+
+const FOLDER_MIME_TYPE = "application/vnd.google-apps.folder";
+
+/**
+ * A simplified version of the type
+ *
+ */
+interface File {
+  kind?: string;
+  driveId?: string;
+  fileExtension?: string;
+  copyRequiresWriterPermission?: boolean;
+  md5Checksum?: string;
+  writersCanShare?: boolean;
+  viewedByMe?: boolean;
+  mimeType?: string;
+  parents?: string[];
+  thumbnailLink?: string;
+  iconLink?: string;
+  shared?: boolean;
+  headRevisionId?: string;
+  webViewLink?: string;
+  webContentLink?: string;
+  size?: string;
+  viewersCanCopyContent?: boolean;
+  hasThumbnail?: boolean;
+  spaces?: string[];
+  folderColorRgb?: string;
+  id?: string;
+  name?: string;
+  description?: string;
+  starred?: boolean;
+  trashed?: boolean;
+  explicitlyTrashed?: boolean;
+  createdTime?: string;
+  modifiedTime?: string;
+  modifiedByMeTime?: string;
+  viewedByMeTime?: string;
+  sharedWithMeTime?: string;
+  quotaBytesUsed?: string;
+  version?: string;
+  originalFilename?: string;
+  ownedByMe?: boolean;
+  fullFileExtension?: string;
+  isAppAuthorized?: boolean;
+  teamDriveId?: string;
+  hasAugmentedPermissions?: boolean;
+  thumbnailVersion?: string;
+  trashedTime?: string;
+  modifiedByMe?: boolean;
+  permissionIds?: string[];
+  resourceKey?: string;
+  sha1Checksum?: string;
+  sha256Checksum?: string;
+}
+
+interface GDEntity extends Entity {
+  id: string;
+  parentID: string | undefined;
+  parentIDPath: string | undefined;
+  isFolder: boolean;
+}
+
+/**
+ * https://developers.google.com/identity/protocols/oauth2/web-server#httprest_7
+ * @param refreshToken
+ */
+export const sendRefreshTokenReq = async (refreshToken: string) => {
+  console.debug(`refreshing token`);
+  const x = await fetch("https://oauth2.googleapis.com/token", {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/x-www-form-urlencoded",
+    },
+    body: new URLSearchParams({
+      client_id: DEFAULT_GOOGLEDRIVE_CLIENT_ID ?? "",
+      client_secret: DEFAULT_GOOGLEDRIVE_CLIENT_SECRET ?? "",
+      grant_type: "refresh_token",
+      refresh_token: refreshToken,
+    }).toString(),
+  });
+
+  if (x.status === 200) {
+    const y = await x.json();
+    console.debug(`new token obtained`);
+    return y;
+  } else {
+    throw Error(`cannot refresh an access token`);
+  }
+
+  // {
+  //   "access_token": "1/fFAGRNJru1FTz70BzhT3Zg",
+  //   "expires_in": 3920,
+  //   "scope": "https://www.googleapis.com/auth/drive.file",
+  //   "token_type": "Bearer"
+  // }
+};
+
+const fromFileToGDEntity = (
+  file: File,
+  parentID: string,
+  parentFolderPath: string | undefined /* for bfs */
+) => {
+  if (parentID === undefined || parentID === "" || parentID === "root") {
+    throw Error(`parentID=${parentID} should not be in fromFileToGDEntity`);
+  }
+
+  let keyRaw = file.name!;
+  if (
+    parentFolderPath !== undefined &&
+    parentFolderPath !== "" &&
+    parentFolderPath !== "/"
+  ) {
+    if (!parentFolderPath.endsWith("/")) {
+      throw Error(
+        `parentFolderPath=${parentFolderPath} should not be in fromFileToGDEntity`
+      );
+    }
+    keyRaw = `${parentFolderPath}${file.name}`;
+  }
+  const isFolder = file.mimeType === FOLDER_MIME_TYPE;
+  if (isFolder) {
+    keyRaw = `${keyRaw}/`;
+  }
+
+  return {
+    key: keyRaw,
+    keyRaw: keyRaw,
+    mtimeCli: Date.parse(file.modifiedTime!),
+    mtimeSvr: Date.parse(file.modifiedTime!),
+    size: isFolder ? 0 : Number.parseInt(file.size!),
+    sizeRaw: isFolder ? 0 : Number.parseInt(file.size!),
+    hash: isFolder ? undefined : file.md5Checksum!,
+    id: file.id!,
+    parentID: parentID,
+    isFolder: isFolder,
+  } as GDEntity;
+};
+
+export class FakeFsGoogleDrive extends FakeFs {
+  kind: string;
+  googleDriveConfig: GoogleDriveConfig;
+  remoteBaseDir: string;
+  vaultFolderExists: boolean;
+  saveUpdatedConfigFunc: () => Promise<any>;
+
+  keyToGDEntity: Record<string, GDEntity>;
+
+  baseDirID: string;
+
+  constructor(
+    googleDriveConfig: GoogleDriveConfig,
+    vaultName: string,
+    saveUpdatedConfigFunc: () => Promise<any>
+  ) {
+    super();
+    this.kind = "googledrive";
+    this.googleDriveConfig = googleDriveConfig;
+    this.remoteBaseDir =
+      this.googleDriveConfig.remoteBaseDir || vaultName || "";
+    this.vaultFolderExists = false;
+    this.saveUpdatedConfigFunc = saveUpdatedConfigFunc;
+    this.keyToGDEntity = {};
+    this.baseDirID = "";
+  }
+
+  async _init() {
+    // get accessToken
+    await this._getAccessToken();
+
+    // check vault folder exists
+    if (this.vaultFolderExists) {
+      // pass
+    } else {
+      const q = encodeURIComponent(
+        `name='${this.remoteBaseDir}' and mimeType='application/vnd.google-apps.folder' and trashed=false`
+      );
+      const url: string = `https://www.googleapis.com/drive/v3/files?q=${q}&pageSize=1000&fields=kind,nextPageToken,files(kind,fileExtension,md5Checksum,mimeType,parents,size,spaces,id,name,trashed,createdTime,modifiedTime,quotaBytesUsed,originalFilename,fullFileExtension,sha1Checksum,sha256Checksum)`;
+      const k = await fetch(url, {
+        method: "GET",
+        headers: {
+          Authorization: `Bearer ${await this._getAccessToken()}`,
+        },
+      });
+
+      const k1: { files: File[] } = await k.json();
+      // console.debug(k1);
+      if (k1.files.length > 0) {
+        // yeah we find it
+        this.baseDirID = k1.files[0].id!;
+        this.vaultFolderExists = true;
+      } else {
+        // wait, we need to create the folder!
+        console.debug(`we need to create the base dir ${this.remoteBaseDir}`);
+        const meta: any = {
+          mimeType: FOLDER_MIME_TYPE,
+          name: this.remoteBaseDir,
+        };
+        const res = await fetch("https://www.googleapis.com/drive/v3/files", {
+          method: "POST",
+          headers: {
+            Authorization: `Bearer ${await this._getAccessToken()}`,
+            "Content-Type": "application/json",
+          },
+          body: JSON.stringify(meta),
+        });
+        const res2: File = await res.json();
+        if (res.status === 200) {
+          console.debug(`succeed to create the base dir ${this.remoteBaseDir}`);
+          this.baseDirID = res2.id!;
+          this.vaultFolderExists = true;
+        } else {
+          throw Error(
+            `cannot create base dir ${this.remoteBaseDir} in init func.`
+          );
+        }
+      }
+    }
+  }
+
+  async _getAccessToken() {
+    if (
+      this.googleDriveConfig.accessToken === "" ||
+      this.googleDriveConfig.refreshToken === ""
+    ) {
+      throw Error("The user has not manually auth yet.");
+    }
+
+    const ts = Date.now();
+    if (this.googleDriveConfig.accessTokenExpiresAtTimeMs > ts) {
+      return this.googleDriveConfig.accessToken;
+    }
+    // refresh
+    const k = await sendRefreshTokenReq(this.googleDriveConfig.refreshToken);
+    this.googleDriveConfig.accessToken = k.access_token;
+    this.googleDriveConfig.accessTokenExpiresInMs = k.expires_in * 1000;
+    this.googleDriveConfig.accessTokenExpiresAtTimeMs =
+      ts + k.expires_in * 1000 - 60 * 2 * 1000;
+    await this.saveUpdatedConfigFunc();
+    console.info("Google Drive accessToken updated");
+    return this.googleDriveConfig.accessToken;
+  }
+
+  /**
+   * https://developers.google.com/drive/api/reference/rest/v3/files/list
+   */
+  async walk(): Promise<Entity[]> {
+    await this._init();
+    const allFiles: GDEntity[] = [];
+
+    // bfs
+    const queue = new PQueue({
+      concurrency: 5, // TODO: make it configurable?
+      autoStart: true,
+    });
+    queue.on("error", (error) => {
+      queue.pause();
+      queue.clear();
+      throw error;
+    });
+
+    let parents = [
+      {
+        id: this.baseDirID, // special init, from already created root folder ID
+        folderPath: "",
+      },
+    ];
+    while (parents.length !== 0) {
+      const children: typeof parents = [];
+      for (const { id, folderPath } of parents) {
+        queue.add(async () => {
+          const filesUnderFolder = await this._walkFolder(id, folderPath);
+          for (const f of filesUnderFolder) {
+            allFiles.push(f);
+            if (f.isFolder) {
+              // keyRaw itself already has a tailing slash, no more slash here
+              // keyRaw itself also already has full path
+              const child = {
+                id: f.id,
+                folderPath: f.keyRaw,
+              };
+              // console.debug(
+              //   `looping result of _walkFolder(${id},${folderPath}), adding child=${JSON.stringify(
+              //     child
+              //   )}`
+              // );
+              children.push(child);
+            }
+          }
+        });
+      }
+      await queue.onIdle();
+      parents = children;
+    }
+
+    // console.debug(`in the end of walk:`);
+    // console.debug(allFiles);
+    // console.debug(this.keyToGDEntity);
+    return allFiles;
+  }
+
+  async _walkFolder(parentID: string, parentFolderPath: string) {
+    // console.debug(
+    //   `input of single level: parentID=${parentID}, parentFolderPath=${parentFolderPath}`
+    // );
+    const filesOneLevel: GDEntity[] = [];
+    let nextPageToken: string | undefined = undefined;
+    if (parentID === undefined || parentID === "" || parentID === "root") {
+      // we should never start from root
+      // because we encapsulate the vault inside a folder
+      throw Error(`something goes wrong walking folder`);
+    }
+    do {
+      const q = encodeURIComponent(
+        `'${parentID}' in parents and trashed=false`
+      );
+      const pageToken =
+        nextPageToken !== undefined ? `&pageToken=${nextPageToken}` : "";
+
+      const url: string = `https://www.googleapis.com/drive/v3/files?q=${q}&pageSize=1000&fields=kind,nextPageToken,files(kind,fileExtension,md5Checksum,mimeType,parents,size,spaces,id,name,trashed,createdTime,modifiedTime,quotaBytesUsed,originalFilename,fullFileExtension,sha1Checksum,sha256Checksum)${pageToken}`;
+
+      const k = await fetch(url, {
+        method: "GET",
+        headers: {
+          Authorization: `Bearer ${await this._getAccessToken()}`,
+        },
+      });
+      if (k.status !== 200) {
+        throw Error(`cannot walk for parentID=${parentID}`);
+      }
+
+      const k1 = await k.json();
+      // console.debug(k1);
+      for (const file of k1.files as File[]) {
+        const entity = fromFileToGDEntity(file, parentID, parentFolderPath);
+        this.keyToGDEntity[entity.keyRaw] = entity; // build cache
+        filesOneLevel.push(entity);
+      }
+
+      nextPageToken = k1.nextPageToken;
+    } while (nextPageToken !== undefined);
+
+    // console.debug(filesOneLevel);
+
+    return filesOneLevel;
+  }
+
+  async walkPartial(): Promise<Entity[]> {
+    await this._init();
+    const filesInLevel = await this._walkFolder(this.baseDirID, "");
+    return filesInLevel;
+  }
+
+  /**
+   * https://developers.google.com/drive/api/reference/rest/v3/files/get
+   * https://developers.google.com/drive/api/guides/fields-parameter
+   */
+  async stat(key: string): Promise<Entity> {
+    await this._init();
+
+    // TODO: we already have a cache, should we call again?
+    const cachedEntity = this.keyToGDEntity[key];
+    const fileID = cachedEntity?.id;
+    if (cachedEntity === undefined || fileID === undefined) {
+      throw Error(`no fileID found for key=${key}`);
+    }
+
+    const url: string = `https://www.googleapis.com/drive/v3/files/${fileID}?fields=kind,fileExtension,md5Checksum,mimeType,parents,size,spaces,id,name,trashed,createdTime,modifiedTime,quotaBytesUsed,originalFilename,fullFileExtension,sha1Checksum,sha256Checksum`;
+
+    const k = await fetch(url, {
+      method: "GET",
+      headers: {
+        Authorization: `Bearer ${await this._getAccessToken()}`,
+      },
+    });
+    if (k.status !== 200) {
+      throw Error(`cannot get file meta fileID=${fileID}, key=${key}`);
+    }
+    const k1: File = await k.json();
+    const entity = fromFileToGDEntity(
+      k1,
+      cachedEntity.parentID!,
+      cachedEntity.parentIDPath!
+    );
+    // insert back to cache?? to update it??
+    this.keyToGDEntity[key] = entity;
+    return entity;
+  }
+
+  /**
+   * https://developers.google.com/drive/api/guides/folder
+   */
+  async mkdir(
+    key: string,
+    mtime: number | undefined,
+    ctime: number | undefined
+  ): Promise<Entity> {
+    if (!key.endsWith("/")) {
+      throw Error(`you should not mkdir on key=${key}`);
+    }
+
+    await this._init();
+
+    // xxx/ => ["xxx"]
+    // xxx/yyy/zzz/ => ["xxx", "xxx/yyy", "xxx/yyy/zzz"]
+    const folderLevels = getFolderLevels(key);
+    let parentFolderPath: string | undefined = undefined;
+    let parentID: string | undefined = undefined;
+    if (folderLevels.length === 0) {
+      throw Error(`cannot getFolderLevels of ${key}`);
+    } else if (folderLevels.length === 1) {
+      parentID = this.baseDirID;
+      parentFolderPath = ""; // ignore base dir
+    } else {
+      // length > 1
+      parentFolderPath = `${folderLevels[folderLevels.length - 2]}/`;
+      if (!(parentFolderPath in this.keyToGDEntity)) {
+        throw Error(
+          `parent of ${key}: ${parentFolderPath} is not created before??`
+        );
+      }
+      parentID = this.keyToGDEntity[parentFolderPath].id;
+    }
+
+    // xxx/yyy/zzz/ => ["xxx", "xxx/yyy", "xxx/yyy/zzz"] => "xxx/yyy/zzz" => "zzz"
+    let folderItselfWithoutSlash = folderLevels[folderLevels.length - 1];
+    folderItselfWithoutSlash = folderItselfWithoutSlash.split("/").pop()!;
+
+    const meta: any = {
+      mimeType: FOLDER_MIME_TYPE,
+      modifiedTime: unixTimeToStr(mtime, true),
+      createdTime: unixTimeToStr(ctime, true),
+      name: folderItselfWithoutSlash,
+      parents: [parentID],
+    };
+    const res = await fetch("https://www.googleapis.com/drive/v3/files", {
+      method: "POST",
+      headers: {
+        Authorization: `Bearer ${await this._getAccessToken()}`,
+        "Content-Type": "application/json",
+      },
+      body: JSON.stringify(meta),
+    });
+    if (res.status !== 200 && res.status !== 201) {
+      throw Error(`create folder ${key} failed! meta=${JSON.stringify(meta)}`);
+    }
+    const res2: File = await res.json();
+    // console.debug(res2);
+    const entity = fromFileToGDEntity(res2, parentID, parentFolderPath);
+    // insert into cache
+    this.keyToGDEntity[key] = entity;
+    return entity;
+  }
+
+  /**
+   * https://developers.google.com/drive/api/guides/manage-uploads
+   * https://stackoverflow.com/questions/65181932/how-i-can-upload-file-to-google-drive-with-google-drive-api
+   */
+  async writeFile(
+    key: string,
+    content: ArrayBuffer,
+    mtime: number,
+    ctime: number
+  ): Promise<Entity> {
+    if (key.endsWith("/")) {
+      throw Error(`should not call writeFile on ${key}`);
+    }
+
+    await this._init();
+
+    const contentType =
+      mime.contentType(mime.lookup(key) || DEFAULT_CONTENT_TYPE) ||
+      DEFAULT_CONTENT_TYPE;
+
+    let parentID: string | undefined = undefined;
+    let parentFolderPath: string | undefined = undefined;
+
+    // "xxx" => []
+    // "xxx/yyy/zzz.md" => ["xxx", "xxx/yyy"]
+    const folderLevels = getFolderLevels(key);
+    if (folderLevels.length === 0) {
+      // root
+      parentID = this.baseDirID;
+      parentFolderPath = "";
+    } else {
+      parentFolderPath = `${folderLevels[folderLevels.length - 1]}/`;
+      if (!(parentFolderPath in this.keyToGDEntity)) {
+        throw Error(
+          `parent of ${key}: ${parentFolderPath} is not created before??`
+        );
+      }
+      parentID = this.keyToGDEntity[parentFolderPath].id;
+    }
+
+    const fileItself = key.split("/").pop()!;
+
+    if (content.byteLength <= 5 * 1024 * 1024) {
+      const formData = new FormData();
+      const meta: any = {
+        name: fileItself,
+        modifiedTime: unixTimeToStr(mtime, true),
+        createdTime: unixTimeToStr(ctime, true),
+        parents: [parentID],
+      };
+      formData.append(
+        "metadata",
+        new Blob([JSON.stringify(meta)], {
+          type: "application/json; charset=UTF-8",
+        })
+      );
+      formData.append("media", new Blob([content], { type: contentType }));
+
+      const res = await fetch(
+        "https://www.googleapis.com/upload/drive/v3/files?uploadType=multipart&fields=kind,fileExtension,md5Checksum,mimeType,parents,size,spaces,id,name,trashed,createdTime,modifiedTime,quotaBytesUsed,originalFilename,fullFileExtension,sha1Checksum,sha256Checksum",
+        {
+          method: "POST",
+          headers: {
+            Authorization: `Bearer ${await this._getAccessToken()}`,
+          },
+          body: formData,
+        }
+      );
+      if (res.status !== 200 && res.status !== 201) {
+        throw Error(`create file ${key} failed! meta=${JSON.stringify(meta)}`);
+      }
+      const res2: File = await res.json();
+      console.debug(
+        `upload ${key} with ${JSON.stringify(meta)}, res2=${JSON.stringify(
+          res2
+        )}`
+      );
+      const entity = fromFileToGDEntity(res2, parentID, parentFolderPath);
+      // insert into cache
+      this.keyToGDEntity[key] = entity;
+      return entity;
+    } else {
+      const meta: any = {
+        name: fileItself,
+        modifiedTime: unixTimeToStr(mtime, true),
+        createdTime: unixTimeToStr(ctime, true),
+        parents: [parentID],
+      };
+      const bodyStr = JSON.stringify(meta);
+      const headers: HeadersInit = {
+        Authorization: `Bearer ${await this._getAccessToken()}`,
+        "Content-Type": "application/json",
+        "Content-Length": `${bodyStr.length}`,
+        "X-Upload-Content-Type": contentType,
+        "X-Upload-Content-Length": `${content.byteLength}`,
+      };
+      const res = await fetch(
+        "https://www.googleapis.com/upload/drive/v3/files?uploadType=resumable&fields=kind,fileExtension,md5Checksum,mimeType,parents,size,spaces,id,name,trashed,createdTime,modifiedTime,quotaBytesUsed,originalFilename,fullFileExtension,sha1Checksum,sha256Checksum",
+        {
+          method: "POST",
+          headers: headers,
+          body: bodyStr,
+        }
+      );
+      if (res.status !== 200) {
+        throw Error(
+          `create resumable file ${key} failed! meta=${JSON.stringify(
+            meta
+          )}, header=${JSON.stringify(headers)}`
+        );
+      }
+      const uploadLocation = res.headers.get("Location");
+      if (uploadLocation === null || !uploadLocation.startsWith("http")) {
+        throw Error(
+          `create resumable file ${key} failed! meta=${JSON.stringify(
+            meta
+          )}, header=${JSON.stringify(headers)}`
+        );
+      }
+      console.debug(`key=${key}, uploadLocaltion=${uploadLocation}`);
+
+      // multiples of 256 KB (256 x 1024 bytes) in size
+      const sizePerChunk = 5 * 4 * 256 * 1024; // 5.24 mb
+      const chunkRanges = splitFileSizeToChunkRanges(
+        content.byteLength,
+        sizePerChunk
+      );
+
+      let entity: GDEntity | undefined = undefined;
+
+      // TODO: deal with "Resume an interrupted upload"
+      // currently (202405) only assume everything goes well...
+      // TODO: parallel
+      for (const { start, end } of chunkRanges) {
+        console.debug(
+          `key=${key}, start upload chunk ${start}-${end}/${content.byteLength}`
+        );
+        const res = await fetch(uploadLocation, {
+          method: "PUT",
+          headers: {
+            Authorization: `Bearer ${await this._getAccessToken()}`,
+            "Content-Length": `${end - start + 1}`, // the number of bytes in the current chunk
+            "Content-Range": `bytes ${start}-${end}/${content.byteLength}`,
+          },
+          body: content.slice(start, end + 1), // TODO: slice() is a copy, may be we can optimize it
+        });
+        if (res.status >= 400 && res.status <= 599) {
+          throw Error(
+            `create resumable file ${key} failed! meta=${JSON.stringify(
+              meta
+            )}, header=${JSON.stringify(headers)}`
+          );
+        }
+
+        if (res.status === 200 || res.status === 201) {
+          const res2: File = await res.json();
+          console.debug(
+            `upload ${key} with ${JSON.stringify(meta)}, res2=${JSON.stringify(
+              res2
+            )}`
+          );
+          if (res2.id === undefined || res2.id === null || res2.id === "") {
+            // TODO: what's this??
+          } else {
+            entity = fromFileToGDEntity(res2, parentID, parentFolderPath);
+            // insert into cache
+            this.keyToGDEntity[key] = entity;
+          }
+        }
+      }
+
+      if (entity === undefined) {
+        throw Error(`something goes wrong while uploading large file ${key}`);
+      }
+      return entity;
+    }
+  }
+
+  /**
+   * https://developers.google.com/drive/api/reference/rest/v3/files/get
+   */
+  async readFile(key: string): Promise<ArrayBuffer> {
+    if (key.endsWith("/")) {
+      throw Error(`you should not call readFile on ${key}`);
+    }
+
+    await this._init();
+
+    const fileID = this.keyToGDEntity[key]?.id;
+    if (fileID === undefined) {
+      throw Error(`no fileID found for key=${key}`);
+    }
+
+    const res1 = await fetch(
+      `https://www.googleapis.com/drive/v3/files/${fileID}?alt=media`,
+      {
+        method: "GET",
+        headers: {
+          Authorization: `Bearer ${await this._getAccessToken()}`,
+        },
+      }
+    );
+    if (res1.status !== 200) {
+      throw Error(`cannot download ${key} using fileID=${fileID}`);
+    }
+    const res2 = await res1.arrayBuffer();
+    return res2;
+  }
+
+  async rename(key1: string, key2: string): Promise<void> {
+    throw new Error("Method not implemented.");
+  }
+
+  /**
+   * https://developers.google.com/drive/api/guides/delete
+   * https://developers.google.com/drive/api/reference/rest/v3/files/update
+   */
+  async rm(key: string): Promise<void> {
+    await this._init();
+
+    const fileID = this.keyToGDEntity[key]?.id;
+    if (fileID === undefined) {
+      throw Error(`no fileID found for key=${key}`);
+    }
+
+    const res1 = await fetch(
+      `https://www.googleapis.com/drive/v3/files/${fileID}`,
+      {
+        method: "PATCH",
+        headers: {
+          Authorization: `Bearer ${await this._getAccessToken()}`,
+        },
+        body: JSON.stringify({
+          trashed: true,
+        }),
+      }
+    );
+    if (res1.status !== 200) {
+      throw Error(`cannot rm ${key} using fileID=${fileID}`);
+    }
+  }
+
+  async checkConnect(callbackFunc?: any): Promise<boolean> {
+    // if we can init, we can connect
+    try {
+      await this._init();
+      return true;
+    } catch (err) {
+      console.debug(err);
+      callbackFunc?.(err);
+      return false;
+    }
+  }
+
+  async getUserDisplayName(): Promise<string> {
+    throw new Error("Method not implemented.");
+  }
+
+  /**
+   * https://developers.google.com/identity/protocols/oauth2/web-server#tokenrevoke
+   */
+  async revokeAuth(): Promise<any> {
+    const x = await fetch(
+      `https://oauth2.googleapis.com/revoke?token=${this._getAccessToken()}`,
+      {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/x-www-form-urlencoded",
+        },
+      }
+    );
+    if (x.status === 200) {
+      return true;
+    } else {
+      throw Error(`cannot revoke`);
+    }
+  }
+
+  allowEmptyFile(): boolean {
+    return true;
+  }
+}
@@ -0,0 +1,577 @@
+import { nanoid } from "nanoid";
+import createClient, { type Middleware } from "openapi-fetch";
+import { base64 } from "rfc4648";
+import type { Entity } from "../../src/baseTypes";
+import { FakeFs } from "../../src/fsAll";
+import { getParentFolder } from "../../src/misc";
+import {
+  COMMAND_CALLBACK_KOOFR,
+  KOOFR_CLIENT_ID,
+  KOOFR_CLIENT_SECRET,
+  type KoofrConfig,
+} from "./baseTypesPro";
+import type { paths } from "./koofrApi";
+import type { components } from "./koofrApi";
+
+type FilesListRecursiveItem = components["schemas"]["FilesListRecursiveItem"];
+type FilesFile = components["schemas"]["FilesFile"];
+
+export const DEFAULT_KOOFR_CONFIG: KoofrConfig = {
+  accessToken: "",
+  accessTokenExpiresInMs: 0,
+  accessTokenExpiresAtTimeMs: 0,
+  refreshToken: "",
+  remoteBaseDir: "",
+  credentialsShouldBeDeletedAtTimeMs: 0,
+  scope: "",
+  api: "https://app.koofr.net",
+  mountID: "",
+  kind: "koofr",
+};
+
+/**
+ * https://app.koofr.net/developers
+ */
+export const generateAuthUrl = (apiAddr: string, hasCallback: boolean) => {
+  let callback = `urn:ietf:wg:oauth:2.0:oob`;
+  if (hasCallback) {
+    callback = `obsidian://${COMMAND_CALLBACK_KOOFR}`;
+  }
+
+  const params = new URLSearchParams({
+    response_type: "code",
+    client_id: KOOFR_CLIENT_ID ?? "",
+    redirect_uri: callback,
+    scope: "public",
+    state: nanoid(),
+  });
+
+  const url = `${apiAddr}/oauth2/auth?${params}`;
+  return url;
+};
+
+interface AuthResSucc {
+  token_type: "Bearer";
+  access_token: string;
+  expires_in: number;
+  refresh_token: string;
+  scope: string | undefined;
+}
+
+interface AuthResFail {
+  error: string;
+  error_description: string;
+}
+
+/**
+ * https://app.koofr.net/developers
+ */
+export const sendAuthReq = async (
+  apiAddr: string,
+  authCode: string,
+  errorCallBack: any,
+  hasCallback: boolean
+) => {
+  let callback = `urn:ietf:wg:oauth:2.0:oob`;
+  if (hasCallback) {
+    callback = `obsidian://${COMMAND_CALLBACK_KOOFR}`;
+  }
+  try {
+    const k = {
+      code: authCode,
+      grant_type: "authorization_code",
+      client_id: KOOFR_CLIENT_ID ?? "",
+      client_secret: KOOFR_CLIENT_SECRET ?? "",
+      redirect_uri: callback,
+    };
+    // console.debug(k);
+    const resp1 = await fetch(`${apiAddr}/oauth2/token`, {
+      method: "POST",
+      body: new URLSearchParams(k),
+    });
+
+    if (resp1.status !== 200) {
+      const resp2: AuthResFail = await resp1.json();
+      throw Error(JSON.stringify(resp2));
+    }
+
+    const resp2: AuthResSucc = await resp1.json();
+    return resp2;
+  } catch (e) {
+    console.error(e);
+    if (errorCallBack !== undefined) {
+      await errorCallBack(e);
+    }
+  }
+};
+
+export const sendRefreshTokenReq = async (
+  apiAddr: string,
+  refreshToken: string
+) => {
+  console.debug(`refreshing token`);
+  const x = await fetch(`${apiAddr}/oauth2/token`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/x-www-form-urlencoded",
+    },
+    body: new URLSearchParams({
+      client_id: KOOFR_CLIENT_ID ?? "",
+      client_secret: KOOFR_CLIENT_SECRET ?? "",
+      grant_type: "refresh_token",
+      refresh_token: refreshToken,
+    }).toString(),
+  });
+
+  if (x.status === 200) {
+    const y: AuthResSucc = await x.json();
+    console.debug(`new token obtained`);
+    return y;
+  } else {
+    const y: AuthResFail = await x.json();
+    throw Error(`cannot refresh an access token: ${JSON.stringify(y)}`);
+  }
+};
+
+export const setConfigBySuccessfullAuthInplace = async (
+  config: KoofrConfig,
+  authRes: AuthResSucc,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+) => {
+  if (authRes.access_token === undefined || authRes.access_token === "") {
+    throw Error(
+      `you should not save the setting for ${JSON.stringify(authRes)}`
+    );
+  }
+
+  config.accessToken = authRes.access_token;
+  config.accessTokenExpiresAtTimeMs =
+    Date.now() + authRes.expires_in * 1000 - 5 * 60 * 1000;
+  config.accessTokenExpiresInMs = authRes.expires_in * 1000;
+  config.refreshToken = authRes.refresh_token || config.refreshToken;
+
+  config.scope = authRes.scope || config.scope;
+
+  // manually set it expired after 60 days;
+  config.credentialsShouldBeDeletedAtTimeMs =
+    Date.now() + 1000 * 60 * 60 * 24 * 59;
+
+  await saveUpdatedConfigFunc?.();
+
+  console.info("finish updating local info of Koofr token");
+};
+
+const getNormPathFromBasedir = (x: string, type: "dir" | "file") => {
+  if (x === "/" || x === "") {
+    throw Error(`do not know how to deal with path: ${x}`);
+  }
+
+  if (!x.startsWith("/")) {
+    throw Error(`path returned by koofr should starts with slash: ${x}`);
+  }
+
+  if (type === "file") {
+    return x.slice(1);
+  } else if (type === "dir") {
+    return `${x.slice(1)}/`;
+  } else {
+    throw Error(`do not know how to deal with path and type: ${x}, ${type}`);
+  }
+};
+
+const getKoofrPath = (fileOrFolderPath: string, remoteBaseDir: string) => {
+  let key = fileOrFolderPath;
+  if (fileOrFolderPath === "/" || fileOrFolderPath === "") {
+    // special
+    key = `/${remoteBaseDir}`;
+  } else if (fileOrFolderPath.startsWith("/")) {
+    console.warn(
+      `why the path ${fileOrFolderPath} starts with '/'? but we just go on.`
+    );
+    key = `/${remoteBaseDir}${fileOrFolderPath}`;
+  } else {
+    key = `/${remoteBaseDir}/${fileOrFolderPath}`;
+  }
+  if (key.endsWith("/")) {
+    key = key.slice(0, key.length - 1);
+  }
+  return key;
+};
+
+const fromItemToEntity = (x: FilesListRecursiveItem): Entity => {
+  if (x.type === "error") {
+    throw Error(`cannot understand ${JSON.stringify(x)}`);
+  }
+
+  const key = getNormPathFromBasedir(x.path ?? "/", x.file?.type as any);
+
+  if (x.file?.type === "dir" || x.file?.type === "file") {
+    return {
+      key: key,
+      keyRaw: key,
+      mtimeCli: x.file.modified,
+      mtimeSvr: x.file.modified,
+      size: x.file.size,
+      sizeRaw: x.file.size,
+      hash: x.file.hash,
+    } as Entity;
+  } else {
+    throw Error(`cannot understand ${JSON.stringify(x)}`);
+  }
+};
+
+const fromFileToEntity = (x: FilesFile, parentPath: string): Entity => {
+  const key = getNormPathFromBasedir(`${parentPath}/${x.name}`, x.type as any);
+  if (x.type === "dir" || x.type === "file") {
+    return {
+      key: key,
+      keyRaw: key,
+      mtimeCli: x.modified,
+      mtimeSvr: x.modified,
+      size: x.size,
+      sizeRaw: x.size,
+      hash: x.hash,
+    } as Entity;
+  } else {
+    throw Error(`cannot understand ${JSON.stringify(x)}`);
+  }
+};
+
+/**
+ * https://app.koofr.net/developers
+ *
+ */
+// const getAuthHeader = (email: string, password: string) => {
+//   const x = `${email}:${password}`;
+//   const y = base64.stringify(new TextEncoder().encode(x));
+//   const z = `Basic ${y}`;
+//   return z;
+// };
+
+// const getAuthMiddleware = (email: string, password: string) => {
+//   const authMiddleware: Middleware = {
+//     async onRequest(req) {
+//       req.headers.set("Authorization", getAuthHeader(email, password));
+//       return req;
+//     },
+//   };
+//   return authMiddleware;
+// };
+
+const getAuthMiddleware = (
+  koofrConfig: KoofrConfig,
+  saveUpdatedConfigFunc: any
+) => {
+  const authMiddleware: Middleware = {
+    async onRequest(req) {
+      const getAccessToken = async () => {
+        if (koofrConfig.refreshToken === "") {
+          throw Error("The user has not manually auth yet.");
+        }
+
+        const ts = Date.now();
+        const comp = koofrConfig.accessTokenExpiresAtTimeMs > ts;
+        // console.debug(`koofrConfig.accessTokenExpiresAtTimeMs=${koofrConfig.accessTokenExpiresAtTimeMs},ts=${ts},comp=${comp}`)
+        if (comp) {
+          return koofrConfig.accessToken;
+        }
+
+        // refresh
+        const k = await sendRefreshTokenReq(
+          koofrConfig.api,
+          koofrConfig.refreshToken
+        );
+        koofrConfig.accessToken = k.access_token;
+        koofrConfig.accessTokenExpiresInMs = k.expires_in * 1000;
+        koofrConfig.accessTokenExpiresAtTimeMs =
+          ts + k.expires_in * 1000 - 60 * 2 * 1000;
+        await saveUpdatedConfigFunc();
+        console.info("Koofr accessToken updated");
+        return koofrConfig.accessToken;
+      };
+
+      const access = await getAccessToken();
+      req.headers.set("Authorization", `Bearer ${access}`);
+      return req;
+    },
+  };
+  return authMiddleware;
+};
+
+export class FakeFsKoofr extends FakeFs {
+  kind: string;
+  koofrConfig: KoofrConfig;
+  remoteBaseDir: string;
+  vaultFolderExists: boolean;
+  saveUpdatedConfigFunc: () => Promise<any>;
+  client: ReturnType<typeof createClient<paths>>;
+  placeID: string;
+
+  constructor(
+    koofrConfig: KoofrConfig,
+    vaultName: string,
+    saveUpdatedConfigFunc: () => Promise<any>
+  ) {
+    super();
+    this.kind = "koofr";
+    this.koofrConfig = koofrConfig;
+    this.remoteBaseDir = this.koofrConfig.remoteBaseDir || vaultName || "";
+    this.vaultFolderExists = false;
+    this.saveUpdatedConfigFunc = saveUpdatedConfigFunc;
+    this.placeID = this.koofrConfig.mountID;
+    const client = createClient<paths>({ baseUrl: this.koofrConfig.api });
+    client.use(getAuthMiddleware(this.koofrConfig, saveUpdatedConfigFunc));
+    this.client = client;
+  }
+
+  async _init() {
+    if (this.koofrConfig.refreshToken === "") {
+      throw Error(`You have not auth yet!`);
+    }
+
+    if (this.placeID === undefined || this.placeID === "") {
+      const { data, error } = await this.client.GET("/api/v2.1/places");
+      const primaryPlaceID = data?.places.filter((x) => x.isPrimary)[0].id;
+      this.placeID = primaryPlaceID ?? "";
+
+      if (this.placeID === "") {
+        throw Error(`cannot find primary placeID`);
+      }
+    }
+
+    if (this.vaultFolderExists) {
+      // pass
+    } else {
+      const { data, error } = await this.client.GET(
+        "/api/v2.1/mounts/{mountId}/files/list",
+        {
+          params: {
+            query: {
+              path: "/",
+            },
+            path: {
+              mountId: this.placeID,
+            },
+          },
+        }
+      );
+      const x = data?.files.filter((x) => x.name === this.remoteBaseDir);
+      if ((x?.length ?? 0) > 0) {
+        this.vaultFolderExists = true;
+      } else {
+        const { data, error } = await this.client.POST(
+          "/api/v2.1/mounts/{mountId}/files/folder",
+          {
+            params: {
+              query: { path: "/" },
+              path: { mountId: this.placeID },
+            },
+            body: {
+              name: this.remoteBaseDir,
+            },
+          }
+        );
+        if (data !== undefined) {
+          this.vaultFolderExists = true;
+        } else {
+          throw Error(JSON.stringify(error));
+        }
+      }
+    }
+  }
+
+  async walk(): Promise<Entity[]> {
+    await this._init();
+    const { data, error } = await this.client.GET(
+      "/content/api/v2.1/mounts/{mountId}/files/listrecursive",
+      {
+        params: {
+          query: { path: this.remoteBaseDir },
+          path: { mountId: this.placeID },
+        },
+        parseAs: "text",
+      }
+    );
+    if (error !== undefined) {
+      throw Error(JSON.stringify(error));
+    }
+    const items = JSON.parse(
+      `[${data.trim().split("\n").join(",")}]`
+    ) as FilesListRecursiveItem[];
+    const entities = items.filter((x) => x.path !== "/").map(fromItemToEntity);
+    return entities;
+  }
+
+  async walkPartial(): Promise<Entity[]> {
+    await this._init();
+
+    const { data, error } = await this.client.GET(
+      "/api/v2.1/mounts/{mountId}/files/list",
+      {
+        params: {
+          query: { path: this.remoteBaseDir },
+          path: { mountId: this.placeID },
+        },
+      }
+    );
+    if (error !== undefined) {
+      throw Error(JSON.stringify(error));
+    }
+    const entities = data.files.map((x) => fromFileToEntity(x, ""));
+    // console.debug(entities);
+    return entities;
+  }
+
+  async stat(key: string): Promise<Entity> {
+    await this._init();
+    const { data, error } = await this.client.GET(
+      "/api/v2.1/mounts/{mountId}/files/info",
+      {
+        params: {
+          query: { path: getKoofrPath(key, this.remoteBaseDir) },
+          path: { mountId: this.placeID },
+        },
+      }
+    );
+    if (error !== undefined) {
+      throw Error(JSON.stringify(error));
+    }
+    const entity = fromFileToEntity(
+      data,
+      getKoofrPath(getParentFolder(key), this.remoteBaseDir)
+    );
+    // console.debug(entity);
+    return entity;
+  }
+
+  async mkdir(
+    key: string,
+    mtime?: number | undefined,
+    ctime?: number | undefined
+  ): Promise<Entity> {
+    await this._init();
+
+    // "abc/efg" -> "abc/"
+    const parent = getParentFolder(key);
+    const itself = key.slice(0, -1).split("/").pop()!;
+    const { data, error } = await this.client.POST(
+      "/api/v2.1/mounts/{mountId}/files/folder",
+      {
+        params: {
+          query: { path: getKoofrPath(parent, this.remoteBaseDir) },
+          path: { mountId: this.placeID },
+        },
+        body: {
+          name: itself,
+        },
+      }
+    );
+    if (error !== undefined) {
+      throw Error(JSON.stringify(error));
+    }
+    return this.stat(key);
+  }
+
+  async writeFile(
+    key: string,
+    content: ArrayBuffer,
+    mtime: number,
+    ctime: number
+  ): Promise<Entity> {
+    await this._init();
+    const itself = key.split("/").pop()!;
+    const { data, error } = await this.client.POST(
+      "/content/api/v2.1/mounts/{mountId}/files/put",
+      {
+        params: {
+          query: {
+            path: getKoofrPath(getParentFolder(key), this.remoteBaseDir),
+            filename: itself,
+            info: true,
+            overwrite: true,
+            autorename: false,
+            modified: mtime,
+          },
+          path: { mountId: this.placeID },
+        },
+
+        body: content as any,
+        bodySerializer(body) {
+          return body;
+        },
+      }
+    );
+    if (error !== undefined) {
+      throw Error(JSON.stringify(error));
+    }
+    const entity = fromFileToEntity(
+      data,
+      getKoofrPath(getParentFolder(key), this.remoteBaseDir)
+    );
+    // console.debug(entity);
+    return entity;
+  }
+
+  async readFile(key: string): Promise<ArrayBuffer> {
+    await this._init();
+    const { data, error } = await this.client.GET(
+      "/content/api/v2.1/mounts/{mountId}/files/get",
+      {
+        params: {
+          query: { path: getKoofrPath(key, this.remoteBaseDir), force: true },
+          path: { mountId: this.placeID },
+        },
+        parseAs: "arrayBuffer",
+      }
+    );
+    if (error !== undefined) {
+      throw Error(JSON.stringify(error));
+    }
+    return data;
+  }
+
+  async rename(key1: string, key2: string): Promise<void> {
+    await this._init();
+    throw new Error("Method not implemented.");
+  }
+
+  async rm(key: string): Promise<void> {
+    await this._init();
+    const { data, error } = await this.client.DELETE(
+      "/api/v2.1/mounts/{mountId}/files/remove",
+      {
+        params: {
+          query: { path: getKoofrPath(key, this.remoteBaseDir), force: true },
+          path: { mountId: this.placeID },
+        },
+      }
+    );
+    if (error !== undefined) {
+      throw Error(JSON.stringify(error));
+    }
+  }
+
+  async checkConnect(callbackFunc?: any): Promise<boolean> {
+    // if we can init, we can connect
+    try {
+      await this._init();
+      return true;
+    } catch (err) {
+      console.debug(err);
+      callbackFunc?.(err);
+      return false;
+    }
+  }
+
+  async getUserDisplayName(): Promise<string> {
+    throw new Error("Method not implemented.");
+  }
+
+  async revokeAuth(): Promise<any> {
+    throw new Error("Method not implemented.");
+  }
+
+  allowEmptyFile(): boolean {
+    return true;
+  }
+}
@@ -0,0 +1,628 @@
+import { nanoid } from "nanoid";
+import { requestUrl } from "obsidian";
+import pcloudSdk from "pcloud-sdk-js";
+import {
+  type Entity,
+  OAUTH2_FORCE_EXPIRE_MILLISECONDS,
+} from "../../src/baseTypes";
+import { FakeFs } from "../../src/fsAll";
+import { getFolderLevels } from "../../src/misc";
+import {
+  COMMAND_CALLBACK_PCLOUD,
+  PCLOUD_CLIENT_ID,
+  PCLOUD_CLIENT_SECRET,
+  type PCloudConfig,
+} from "./baseTypesPro";
+
+export const DEFAULT_PCLOUD_CONFIG: PCloudConfig = {
+  accessToken: "",
+  hostname: "eapi.pcloud.com",
+  locationid: 2,
+  credentialsShouldBeDeletedAtTimeMs: 0,
+  emptyFile: "skip",
+  kind: "pcloud",
+};
+
+export interface AuthAllowFirstRes {
+  code: string;
+  state?: string;
+  locationid: 1 | 2;
+  hostname: "api.pcloud.com" | "eapi.pcloud.com";
+}
+
+/**
+ * https://docs.pcloud.com/methods/oauth_2.0/authorize.html
+ */
+export const generateAuthUrl = async (hasCallback: boolean) => {
+  const clientID = PCLOUD_CLIENT_ID;
+  const state = nanoid();
+  let authUrl = `https://my.pcloud.com/oauth2/authorize?response_type=code&client_id=${clientID}&state=${state}`;
+  if (hasCallback) {
+    authUrl += `&redirect_uri=obsidian://${COMMAND_CALLBACK_PCLOUD}`;
+  }
+  return {
+    authUrl,
+    state,
+  };
+};
+
+interface AuthResSucc {
+  result: number;
+  access_token: string;
+  token_type: "bearer";
+  uid: number;
+  locationid: number;
+}
+
+/**
+ * https://docs.pcloud.com/methods/oauth_2.0/oauth2_token.html
+ */
+export const sendAuthReq = async (
+  hostname: string,
+  authCode: string,
+  errorCallBack: any
+) => {
+  const clientID = PCLOUD_CLIENT_ID ?? "";
+  const clientSecret = PCLOUD_CLIENT_SECRET ?? "";
+  try {
+    const k = {
+      code: authCode,
+      client_id: clientID,
+      client_secret: clientSecret,
+    };
+    // console.debug(k);
+    const resp1 = await fetch(`https://${hostname}/oauth2_token`, {
+      method: "POST",
+      body: new URLSearchParams(k),
+    });
+    const resp2: AuthResSucc = await resp1.json();
+    // console.debug(resp2);
+    if (resp2?.result !== 0) {
+      throw Error(`result is not 0 (success) in the end`);
+    }
+    if (!("access_token" in resp2)) {
+      throw Error(`no access_token in the end`);
+    }
+    return resp2;
+  } catch (e) {
+    console.error(e);
+    if (errorCallBack !== undefined) {
+      await errorCallBack(e);
+    }
+  }
+};
+
+export const setConfigBySuccessfullAuthInplace = async (
+  config: PCloudConfig,
+  authAllowFirstRes: AuthAllowFirstRes,
+  authRes: AuthResSucc | undefined,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+) => {
+  if (authRes === undefined) {
+    throw Error(`you should not save the setting for undefined result`);
+  }
+
+  config.accessToken = authRes.access_token;
+  config.hostname = authAllowFirstRes.hostname;
+  config.locationid = authAllowFirstRes.locationid;
+
+  // manually set it expired after 80 days;
+  config.credentialsShouldBeDeletedAtTimeMs =
+    Date.now() + OAUTH2_FORCE_EXPIRE_MILLISECONDS;
+
+  await saveUpdatedConfigFunc?.();
+
+  console.info("finish updating local info of pCloud token");
+};
+
+interface PCloudEntity extends Entity {
+  id: number;
+  parentID: number | undefined;
+  parentIDPath: string | undefined;
+  isFolder: boolean;
+  hashPCloud: number | undefined;
+}
+
+interface File {
+  contenttype: string;
+  created: string;
+  fileid: number;
+  hash: number;
+  id: string; // "f" + fileid
+  isfolder: false;
+  modified: string;
+  name: string;
+  parentfolderid: number;
+  size: number;
+}
+
+interface Folder {
+  contents: (Folder | File)[] | undefined;
+  id: string; // "d"+folderid
+  folderid: number;
+  isfolder: true;
+  created: string;
+  modified: string;
+  name: string;
+  parentfolderid: number;
+}
+
+interface StatRawResponse {
+  result: number;
+  fileids: number[];
+  metadata: (File | Folder)[];
+  checksums: { sha1: string; sha256?: string; md5?: string }[] | undefined;
+}
+
+const fromRawResponseToEntity = (
+  item: Folder | File,
+  parentFolderPath: string | undefined /* for bfs */
+): PCloudEntity => {
+  if (item.parentfolderid === undefined || item.parentfolderid === 0) {
+    throw Error(
+      `parentfolderid=${item.parentfolderid} should not be in fromRawResponseToEntity`
+    );
+  }
+
+  let keyRaw = item.name;
+  let size = 0;
+  let hashPCloud: number | undefined = undefined;
+  let hash: string | undefined = undefined;
+  let id: number | undefined = undefined;
+  if (
+    parentFolderPath !== undefined &&
+    parentFolderPath !== "" &&
+    parentFolderPath !== "/"
+  ) {
+    if (!parentFolderPath.endsWith("/")) {
+      throw Error(
+        `parentFolderPath=${parentFolderPath} should not be in fromRawResponseToEntity`
+      );
+    }
+    keyRaw = `${parentFolderPath}${item.name}`;
+  }
+
+  if (item.isfolder) {
+    keyRaw = `${keyRaw}/`;
+    id = item.folderid;
+  } else {
+    size = item.size;
+    hashPCloud = item.hash;
+    hash = `${item.hash}`;
+    id = item.fileid;
+  }
+
+  const mtime = new Date(item.modified).valueOf();
+
+  return {
+    key: keyRaw,
+    keyRaw: keyRaw,
+    mtimeCli: mtime,
+    mtimeSvr: mtime,
+    id: id,
+    parentID: item.parentfolderid,
+    isFolder: item.isfolder,
+    size: size,
+    sizeRaw: size,
+    hash: hash,
+    hashPCloud: hashPCloud,
+    parentIDPath: parentFolderPath,
+  };
+};
+
+const fromNestedFolderToEntityListAndCache = (
+  root: Folder
+): { entities: PCloudEntity[]; key2Entity: Record<string, PCloudEntity> } => {
+  // console.debug("root:");
+  // console.debug(root);
+
+  const entities: PCloudEntity[] = [];
+  const key2Entity: Record<string, PCloudEntity> = {};
+
+  if (root.contents === undefined || root.contents.length === 0) {
+    // console.debug(`early return`);
+    return {
+      entities,
+      key2Entity,
+    };
+  }
+
+  let parents: {
+    folderPath: string;
+    itself: Folder | File;
+  }[] = [];
+  for (const f of root.contents ?? []) {
+    parents.push({
+      folderPath: "",
+      itself: f,
+    });
+  }
+
+  while (parents.length !== 0) {
+    const children: typeof parents = [];
+    for (const { folderPath, itself } of parents) {
+      if (itself.isfolder && itself.folderid === root.folderid) {
+        // special, ignore root folder itself
+      } else {
+        const entity = fromRawResponseToEntity(itself, folderPath);
+        entities.push(entity);
+        key2Entity[entity.keyRaw] = entity;
+      }
+
+      if (
+        itself.isfolder &&
+        itself.contents !== undefined &&
+        itself.contents.length > 0
+      ) {
+        for (const f of itself.contents) {
+          if (folderPath === "" || folderPath === "/") {
+            const child = {
+              itself: f,
+              folderPath: `${itself.name}/`,
+            };
+            children.push(child);
+          } else {
+            const child = {
+              itself: f,
+              folderPath: `${folderPath}${itself.name}/`,
+            };
+            children.push(child);
+          }
+        }
+      }
+    }
+    parents = children;
+  }
+
+  // console.debug("entities:");
+  // console.debug(entities);
+  // console.debug("key2Entity:");
+  // console.debug(key2Entity);
+
+  return {
+    entities,
+    key2Entity,
+  };
+};
+
+const getPCloudPath = (fileOrFolderPath: string, remoteBaseDir: string) => {
+  return `/${remoteBaseDir}/${fileOrFolderPath}`;
+};
+
+export class FakeFsPCloud extends FakeFs {
+  kind: string;
+
+  pCloudConfig: PCloudConfig;
+  remoteBaseDir: string;
+  vaultFolderExists: boolean;
+  saveUpdatedConfigFunc: () => Promise<any>;
+
+  keyToPCloudEntity: Record<string, PCloudEntity>;
+  baseDirID: number;
+
+  client: pcloudSdk.Client;
+
+  constructor(
+    pCloudConfig: PCloudConfig,
+    vaultName: string,
+    saveUpdatedConfigFunc: () => Promise<any>
+  ) {
+    super();
+    this.kind = "pcloud";
+    this.pCloudConfig = pCloudConfig;
+    this.remoteBaseDir = this.pCloudConfig.remoteBaseDir || vaultName || "";
+    this.vaultFolderExists = false;
+    this.saveUpdatedConfigFunc = saveUpdatedConfigFunc;
+    this.keyToPCloudEntity = {};
+    this.baseDirID = 0;
+
+    (global as any).locationid = pCloudConfig.locationid; // why?? pcloud, why??
+    this.client = pcloudSdk.createClient(pCloudConfig.accessToken);
+  }
+
+  async _init() {
+    if (this.vaultFolderExists) {
+      // pass
+    } else {
+      const root = (await this.client.listfolder(0, {
+        recursive: false,
+      })) as Folder;
+
+      // find?
+      if (root.contents === undefined) {
+        throw Error(`cannot listfolder of root!`);
+      }
+      const found = root.contents.filter(
+        (x) => x.isfolder && x.name === this.remoteBaseDir
+      );
+      if (found.length > 0) {
+        // we find it!
+        const f = found[0] as Folder;
+        this.baseDirID = f.folderid;
+        this.vaultFolderExists = true;
+      } else {
+        // not found, let's create it!
+        const f: Folder = await this.client.createfolder(this.remoteBaseDir, 0);
+        // console.debug(f);
+        this.baseDirID = f.folderid;
+        this.vaultFolderExists = true;
+      }
+    }
+  }
+
+  async _getAccessToken() {
+    if (this.pCloudConfig.accessToken === "") {
+      throw Error("The user has not manually auth yet.");
+    }
+
+    return this.pCloudConfig.accessToken;
+
+    // TODO: no expire date?
+    // https://docs.pcloud.com/methods/intro/authentication.html
+  }
+
+  async walk(): Promise<Entity[]> {
+    await this._init();
+    const rsp = (await this.client.listfolder(this.baseDirID, {
+      recursive: true,
+    })) as Folder;
+
+    const { entities, key2Entity } = fromNestedFolderToEntityListAndCache(rsp);
+
+    this.keyToPCloudEntity = Object.assign(this.keyToPCloudEntity, key2Entity);
+
+    return entities;
+  }
+
+  async walkPartial(): Promise<Entity[]> {
+    await this._init();
+    const rsp = (await this.client.listfolder(this.baseDirID, {
+      recursive: false,
+    })) as Folder;
+    const { entities, key2Entity } = fromNestedFolderToEntityListAndCache(rsp);
+
+    this.keyToPCloudEntity = Object.assign(this.keyToPCloudEntity, key2Entity);
+
+    return entities;
+  }
+
+  async stat(key: string): Promise<Entity> {
+    await this._init();
+
+    // TODO: we already have a cache, should we call again?
+    const cachedEntity = this.keyToPCloudEntity[key];
+    const fileID = cachedEntity?.id;
+    if (cachedEntity === undefined || fileID === undefined) {
+      throw Error(`no fileID found for key=${key}`);
+    }
+
+    // why? pcloud doesn't have stat api??
+    return cachedEntity;
+  }
+
+  async mkdir(
+    key: string,
+    mtime?: number | undefined,
+    ctime?: number | undefined
+  ): Promise<Entity> {
+    if (!key.endsWith("/")) {
+      throw Error(`you should not mkdir on key=${key}`);
+    }
+
+    await this._init();
+
+    const cachedEntity = this.keyToPCloudEntity[key];
+    const fileID = cachedEntity?.id;
+    if (cachedEntity !== undefined && fileID !== undefined) {
+      return cachedEntity;
+    }
+
+    // xxx/ => ["xxx"]
+    // xxx/yyy/zzz/ => ["xxx", "xxx/yyy", "xxx/yyy/zzz"]
+    const folderLevels = getFolderLevels(key);
+    let parentFolderPath: string | undefined = undefined;
+    let parentID: number | undefined = undefined;
+    if (folderLevels.length === 0) {
+      throw Error(`cannot getFolderLevels of ${key}`);
+    } else if (folderLevels.length === 1) {
+      parentID = this.baseDirID;
+      parentFolderPath = ""; // ignore base dir
+    } else {
+      // length > 1
+      parentFolderPath = `${folderLevels[folderLevels.length - 2]}/`;
+      if (!(parentFolderPath in this.keyToPCloudEntity)) {
+        throw Error(
+          `parent of ${key}: ${parentFolderPath} is not created before??`
+        );
+      }
+      parentID = this.keyToPCloudEntity[parentFolderPath].id;
+    }
+
+    // xxx/yyy/zzz/ => ["xxx", "xxx/yyy", "xxx/yyy/zzz"] => "xxx/yyy/zzz" => "zzz"
+    let folderItselfWithoutSlash = folderLevels[folderLevels.length - 1];
+    folderItselfWithoutSlash = folderItselfWithoutSlash.split("/").pop()!;
+
+    const f = await this.client.createfolder(
+      folderItselfWithoutSlash,
+      parentID
+    );
+
+    const entity = fromRawResponseToEntity(f, parentFolderPath);
+    // insert into cache
+    this.keyToPCloudEntity[key] = entity;
+    return entity;
+  }
+
+  /**
+   * https://docs.pcloud.com/methods/file/uploadfile.html
+   */
+  async writeFile(
+    key: string,
+    content: ArrayBuffer,
+    mtime: number,
+    ctime: number
+  ): Promise<Entity> {
+    if (key.endsWith("/")) {
+      throw Error(`should not call writeFile on ${key}`);
+    }
+
+    await this._init();
+
+    const prevCachedEntity: PCloudEntity | undefined =
+      this.keyToPCloudEntity[key];
+    const prevFileID: number | undefined = prevCachedEntity?.id;
+
+    let parentID: number | undefined = undefined;
+    let parentFolderPath: string | undefined = undefined;
+
+    // "xxx" => []
+    // "xxx/yyy/zzz.md" => ["xxx", "xxx/yyy"]
+    const folderLevels = getFolderLevels(key);
+    if (folderLevels.length === 0) {
+      // root
+      parentID = this.baseDirID;
+      parentFolderPath = "";
+    } else {
+      parentFolderPath = `${folderLevels[folderLevels.length - 1]}/`;
+      if (!(parentFolderPath in this.keyToPCloudEntity)) {
+        throw Error(
+          `parent of ${key}: ${parentFolderPath} is not created before??`
+        );
+      }
+      parentID = this.keyToPCloudEntity[parentFolderPath].id;
+    }
+
+    const fileItself = key.split("/").pop()!;
+
+    // no idea how to use the sdk, let's use https here
+    // https://docs.pcloud.com/methods/file/uploadfile.html
+    const params = new URLSearchParams({
+      access_token: await this._getAccessToken(),
+      folderid: `${parentID}`,
+      filename: fileItself,
+      nopartial: `1`,
+      renameifexists: `0`,
+      mtime: `${Math.floor(mtime / 1000.0)}`,
+      ctime: `${Math.floor(ctime / 1000.0)}`,
+    });
+    const apiUrl = `https://${this.pCloudConfig.hostname}/uploadfile?${params}`;
+
+    if (content.byteLength > 0) {
+      const rsp = await fetch(apiUrl, {
+        method: "PUT",
+        body: content,
+      });
+      const f: StatRawResponse = await rsp.json();
+      const entity = fromRawResponseToEntity(f.metadata[0], parentFolderPath);
+      // console.debug(entity);
+      this.keyToPCloudEntity[key] = entity;
+      return entity;
+    } else {
+      // no idea why pcloud doesn't work for empty files
+      // it can be uploaded successfully but the call doesn't end
+      // we abort it and stat it manually.
+      // console.warn(`uploading empty file ${key}`);
+      const controller = new AbortController();
+      const timeoutMs = 300; // just a random reasonable number
+      const id = setTimeout(() => controller.abort(), timeoutMs);
+      try {
+        const rsp = await fetch(apiUrl, {
+          method: "PUT",
+          body: content,
+          signal: controller.signal,
+        });
+      } catch (e) {
+        // console.warn(`we abort the request of uploading empty file ${key}:`);
+        // console.warn(e);
+      } finally {
+        clearTimeout(id);
+      }
+
+      // raw stat here
+      // https://docs.pcloud.com/methods/file/stat.html
+      const params = new URLSearchParams({
+        access_token: await this._getAccessToken(),
+        path: getPCloudPath(key, this.remoteBaseDir),
+      });
+      const apiUrlStat = `https://${this.pCloudConfig.hostname}/stat?${params}`;
+      const rsp2 = await fetch(apiUrlStat);
+      const f = await rsp2.json();
+      const entity = fromRawResponseToEntity(f.metadata, parentFolderPath);
+      // console.warn(entity);
+      this.keyToPCloudEntity[key] = entity;
+      return entity;
+    }
+  }
+
+  async readFile(key: string): Promise<ArrayBuffer> {
+    await this._init();
+    const cachedEntity = this.keyToPCloudEntity[key];
+    const fileID = cachedEntity?.id;
+    if (cachedEntity === undefined || fileID === undefined) {
+      throw Error(`no fileID found for key=${key}`);
+    }
+
+    const params = new URLSearchParams({
+      access_token: await this._getAccessToken(),
+      forcedownload: `1`,
+      fileid: `${fileID}`,
+    });
+    const urlMeta = `https://${this.pCloudConfig.hostname}/getfilelink?${params}`;
+
+    // Referrer is restricted to pcloud.com.
+    // we need to bypass it
+    const meta = (await requestUrl(urlMeta)).json;
+    // console.debug(meta);
+    const link: string = `https://${meta.hosts[0]}${meta.path}`;
+    const rsp = await requestUrl(link);
+    const content = rsp.arrayBuffer;
+    return content;
+  }
+
+  async rename(key1: string, key2: string): Promise<void> {
+    await this._init();
+    throw new Error("Method not implemented.");
+  }
+
+  async rm(key: string): Promise<void> {
+    await this._init();
+
+    const cachedEntity = this.keyToPCloudEntity[key];
+    const fileID = cachedEntity?.id;
+    if (cachedEntity === undefined || fileID === undefined) {
+      throw Error(`no fileID found for key=${key}`);
+    }
+
+    if (key.endsWith("/")) {
+      await this.client.deletefolder(fileID);
+    } else {
+      await this.client.deletefile(fileID);
+    }
+  }
+
+  async checkConnect(callbackFunc?: any): Promise<boolean> {
+    // if we can init, we can connect
+    try {
+      await this._init();
+      return true;
+    } catch (err) {
+      console.debug(err);
+      callbackFunc?.(err);
+      return false;
+    }
+  }
+
+  async getUserDisplayName(): Promise<string> {
+    await this._init();
+    throw new Error("Method not implemented.");
+  }
+
+  async revokeAuth(): Promise<any> {
+    await this._init();
+    throw new Error("Method not implemented.");
+  }
+
+  allowEmptyFile(): boolean {
+    return true;
+  }
+}
@@ -0,0 +1,516 @@
+import { nanoid } from "nanoid";
+import PQueue from "p-queue";
+import type { Entity } from "../../src/baseTypes";
+import { FakeFs } from "../../src/fsAll";
+import { unixTimeToStr } from "../../src/misc";
+import {
+  COMMAND_CALLBACK_YANDEXDISK,
+  YANDEXDISK_CLIENT_ID,
+  YANDEXDISK_CLIENT_SECRET,
+  type YandexDiskConfig,
+} from "./baseTypesPro";
+import {
+  type FilesResourceList,
+  type Resource,
+  type ResourceList,
+  YandexApi,
+} from "./yandexApi";
+
+export const DEFAULT_YANDEXDISK_CONFIG: YandexDiskConfig = {
+  accessToken: "",
+  accessTokenExpiresInMs: 0,
+  accessTokenExpiresAtTimeMs: 0,
+  refreshToken: "",
+  scope: "",
+  kind: "yandexdisk",
+};
+
+/**
+ * https://yandex.com/dev/id/doc/en/codes/code-url#code
+ */
+export const generateAuthUrl = (hasCallback: boolean) => {
+  let callback = `https://oauth.yandex.com/verification_code`;
+  if (hasCallback) {
+    callback = `obsidian://${COMMAND_CALLBACK_YANDEXDISK}`;
+  }
+
+  const params = new URLSearchParams({
+    response_type: "code",
+    client_id: YANDEXDISK_CLIENT_ID ?? "",
+    redirect_uri: callback,
+    force_confirm: "yes",
+    state: nanoid(),
+  });
+
+  const url = `https://oauth.yandex.com/authorize?${params}`;
+  return url;
+};
+
+interface AuthResSucc {
+  token_type: "bearer";
+  access_token: string;
+  expires_in: number;
+  refresh_token: string;
+  scope: string | undefined;
+}
+
+interface AuthResFail {
+  error: string;
+  error_description: string;
+}
+
+/**
+ * https://yandex.com/dev/id/doc/en/codes/code-url#token
+ */
+export const sendAuthReq = async (authCode: string, errorCallBack: any) => {
+  try {
+    const k = {
+      code: authCode,
+      grant_type: "authorization_code",
+      client_id: YANDEXDISK_CLIENT_ID ?? "",
+      client_secret: YANDEXDISK_CLIENT_SECRET ?? "",
+      // redirect_uri: `obsidian://${COMMAND_CALLBACK_BOX}`,
+    };
+    // console.debug(k);
+    const resp1 = await fetch(`https://oauth.yandex.com/token`, {
+      method: "POST",
+      body: new URLSearchParams(k),
+    });
+
+    if (resp1.status !== 200) {
+      const resp2: AuthResFail = await resp1.json();
+      throw Error(JSON.stringify(resp2));
+    }
+
+    const resp2: AuthResSucc = await resp1.json();
+    return resp2;
+  } catch (e) {
+    console.error(e);
+    if (errorCallBack !== undefined) {
+      await errorCallBack(e);
+    }
+  }
+};
+
+/**
+ * https://yandex.com/dev/id/doc/en/tokens/refresh-client
+ */
+export const sendRefreshTokenReq = async (refreshToken: string) => {
+  console.debug(`refreshing token`);
+  const x = await fetch("https://oauth.yandex.com/token", {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/x-www-form-urlencoded",
+    },
+    body: new URLSearchParams({
+      client_id: YANDEXDISK_CLIENT_ID ?? "",
+      client_secret: YANDEXDISK_CLIENT_SECRET ?? "",
+      grant_type: "refresh_token",
+      refresh_token: refreshToken,
+    }).toString(),
+  });
+
+  if (x.status === 200) {
+    const y: AuthResSucc = await x.json();
+    console.debug(`new token obtained`);
+    return y;
+  } else {
+    const y: AuthResFail = await x.json();
+    throw Error(`cannot refresh an access token: ${JSON.stringify(y)}`);
+  }
+};
+
+export const setConfigBySuccessfullAuthInplace = async (
+  config: YandexDiskConfig,
+  authRes: any,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+) => {
+  if (authRes.access_token === undefined || authRes.access_token === "") {
+    throw Error(
+      `you should not save the setting for ${JSON.stringify(authRes)}`
+    );
+  }
+
+  config.accessToken = authRes.access_token;
+  config.accessTokenExpiresAtTimeMs =
+    Date.now() + authRes.expires_in * 1000 - 5 * 60 * 1000;
+  config.accessTokenExpiresInMs = authRes.expires_in * 1000;
+  config.refreshToken = authRes.refresh_token || config.refreshToken;
+
+  // manually set it expired after 60 days;
+  config.credentialsShouldBeDeletedAtTimeMs =
+    Date.now() + 1000 * 60 * 60 * 24 * 59;
+
+  await saveUpdatedConfigFunc?.();
+
+  console.info("finish updating local info of Yandex Disk token");
+};
+
+const getYandexDiskPath = (fileOrFolderPath: string, remoteBaseDir: string) => {
+  let key = fileOrFolderPath;
+  if (fileOrFolderPath === "/" || fileOrFolderPath === "") {
+    // special
+    key = `disk:/${remoteBaseDir}`;
+  } else if (fileOrFolderPath.startsWith("/")) {
+    console.warn(
+      `why the path ${fileOrFolderPath} starts with '/'? but we just go on.`
+    );
+    key = `disk:/${remoteBaseDir}${fileOrFolderPath}`;
+  } else {
+    key = `disk:/${remoteBaseDir}/${fileOrFolderPath}`;
+  }
+  if (key.endsWith("/")) {
+    key = key.slice(0, key.length - 1);
+  }
+  return key;
+};
+
+const getNormPath = (
+  fileOrFolderPath: string,
+  remoteBaseDir: string,
+  type: "dir" | "file"
+) => {
+  if (
+    !(
+      fileOrFolderPath === `disk:/${remoteBaseDir}` ||
+      fileOrFolderPath.startsWith(`disk:/${remoteBaseDir}/`)
+    )
+  ) {
+    throw Error(
+      `"${fileOrFolderPath}" doesn't starts with "disk:/${remoteBaseDir}/"`
+    );
+  }
+  let key = fileOrFolderPath.slice(`disk:/${remoteBaseDir}/`.length);
+  if (type === "dir") {
+    key = `${key}/`;
+  }
+  return key;
+};
+
+const fromResourceToEntity = (x: Resource, remoteBaseDir: string): Entity => {
+  const key = getNormPath(x.path!, remoteBaseDir, x.type!);
+  if (x.type === "dir") {
+    return {
+      key: key,
+      keyRaw: key,
+      size: 0,
+      sizeRaw: 0,
+    } as Entity;
+  } else {
+    // file
+    const mtimeCli = Date.parse(
+      x?.custom_properties?.rclone_modified ?? x.modified!
+    ).valueOf();
+    const mtimeSvr = Date.parse(x.modified!).valueOf();
+    return {
+      key: key,
+      keyRaw: key,
+      mtimeCli: mtimeCli,
+      mtimeSvr: mtimeSvr,
+      size: x.size!,
+      sizeRaw: x.size!,
+      hash: x.sha256,
+    } as Entity;
+  }
+};
+
+const FIELDS_FOR_RESOURCE = [
+  "name",
+  "created",
+  "modified",
+  "path",
+  "type",
+  "size",
+  "sha256",
+  "md5",
+  "_embedded.limit",
+  "_embedded.offset",
+  "_embedded.total",
+  "_embedded.items.created",
+  "_embedded.items.modified",
+  "_embedded.items.path",
+  "_embedded.items.name",
+  "_embedded.items.type",
+  "_embedded.items.size",
+  "_embedded.items.sha256",
+  "_embedded.items.md5",
+  "_embedded.items.mime_type",
+  "_embedded.items.file",
+  "_embedded.items.custom_properties",
+];
+
+export class FakeFsYandexDisk extends FakeFs {
+  kind: string;
+  yandexDiskConfig: YandexDiskConfig;
+  remoteBaseDir: string;
+  vaultFolderExists: boolean;
+  saveUpdatedConfigFunc: () => Promise<any>;
+
+  constructor(
+    yandexDiskConfig: YandexDiskConfig,
+    vaultName: string,
+    saveUpdatedConfigFunc: () => Promise<any>
+  ) {
+    super();
+    this.kind = "yandexdisk";
+    this.yandexDiskConfig = yandexDiskConfig;
+    this.remoteBaseDir = this.yandexDiskConfig.remoteBaseDir || vaultName || "";
+    this.vaultFolderExists = false;
+    this.saveUpdatedConfigFunc = saveUpdatedConfigFunc;
+  }
+
+  async _init() {
+    const access = await this._getAccessToken();
+    const client = new YandexApi(access);
+
+    if (this.vaultFolderExists) {
+      // pass
+    } else {
+      const res: Resource[] = [];
+      let offset = 0;
+      const limit = 100;
+      let total = 100;
+      do {
+        const k = await client.diskResources(
+          "disk:/",
+          FIELDS_FOR_RESOURCE,
+          limit,
+          offset
+        );
+        res.push(...(k._embedded?.items ?? []));
+        total = k._embedded?.total ?? 0;
+        offset += limit;
+      } while (offset < total);
+
+      if (res.filter((x) => x.name === this.remoteBaseDir).length > 0) {
+        // found
+        this.vaultFolderExists = true;
+      } else {
+        // need to create
+        await client.diskResourcesPut(`disk:/${this.remoteBaseDir}`);
+        this.vaultFolderExists = true;
+      }
+    }
+  }
+
+  async _getAccessToken() {
+    if (this.yandexDiskConfig.refreshToken === "") {
+      throw Error("The user has not manually auth yet.");
+    }
+
+    const ts = Date.now();
+    const comp = this.yandexDiskConfig.accessTokenExpiresAtTimeMs > ts;
+    // console.debug(`this.yandexDiskConfig.accessTokenExpiresAtTimeMs=${this.yandexDiskConfig.accessTokenExpiresAtTimeMs},ts=${ts},comp=${comp}`)
+    if (comp) {
+      return this.yandexDiskConfig.accessToken;
+    }
+
+    // refresh
+    const k = await sendRefreshTokenReq(this.yandexDiskConfig.refreshToken);
+    this.yandexDiskConfig.accessToken = k.access_token;
+    this.yandexDiskConfig.accessTokenExpiresInMs = k.expires_in * 1000;
+    this.yandexDiskConfig.accessTokenExpiresAtTimeMs =
+      ts + k.expires_in * 1000 - 60 * 2 * 1000;
+    await this.saveUpdatedConfigFunc();
+    console.info("Yandex Disk accessToken updated");
+    return this.yandexDiskConfig.accessToken;
+  }
+
+  async walk(): Promise<Entity[]> {
+    await this._init();
+
+    // bfs
+    const queue = new PQueue({
+      concurrency: 5, // TODO: make it configurable?
+      autoStart: true,
+    });
+    queue.on("error", (error) => {
+      queue.pause();
+      queue.clear();
+      throw error;
+    });
+
+    const entities: Entity[] = [];
+
+    let parents = ["/"];
+    while (parents.length !== 0) {
+      const children: typeof parents = [];
+      for (const p of parents) {
+        queue.add(async () => {
+          const entitiesOfALevel = await this._walkFolder(p);
+          for (const entity of entitiesOfALevel) {
+            entities.push(entity);
+            if (entity.keyRaw.endsWith("/")) {
+              children.push(entity.keyRaw);
+            }
+          }
+        });
+      }
+      await queue.onIdle();
+      parents = children;
+    }
+
+    // console.debug(entities);
+    return entities;
+  }
+
+  async walkPartial(): Promise<Entity[]> {
+    await this._init();
+    const entities = await this._walkFolder("/");
+    return entities;
+  }
+
+  async _walkFolder(key: string) {
+    if (!key.endsWith("/")) {
+      throw Error(`should not call _walkFolder on ${key}`);
+    }
+    const client = new YandexApi(await this._getAccessToken());
+    const p = getYandexDiskPath(key, this.remoteBaseDir);
+    const entities: Entity[] = [];
+    let offset = 0;
+    const limit = 100;
+    let total = 100;
+    // TODO: once we know the total in the first loop, we can run the list in parallel
+    do {
+      const k = await client.diskResources(
+        p,
+        FIELDS_FOR_RESOURCE,
+        limit,
+        offset
+      );
+      entities.push(
+        ...(k._embedded?.items ?? []).map((x) =>
+          fromResourceToEntity(x, this.remoteBaseDir)
+        )
+      );
+      total = k._embedded?.total ?? 0;
+      offset += limit;
+    } while (offset < total);
+    return entities;
+  }
+
+  async stat(key: string): Promise<Entity> {
+    await this._init();
+    const client = new YandexApi(await this._getAccessToken());
+    const p = getYandexDiskPath(key, this.remoteBaseDir);
+    const r = await client.diskResources(p, FIELDS_FOR_RESOURCE);
+    const entity = fromResourceToEntity(r, this.remoteBaseDir);
+    return entity;
+  }
+
+  async mkdir(
+    key: string,
+    mtime?: number | undefined,
+    ctime?: number | undefined
+  ): Promise<Entity> {
+    // console.debug(`mkdir ${key} begin`)
+    await this._init();
+    const client = new YandexApi(await this._getAccessToken());
+    const p = getYandexDiskPath(key, this.remoteBaseDir);
+    // create
+    await client.diskResourcesPut(p, FIELDS_FOR_RESOURCE);
+    // patch?
+    const custom: Record<string, string> = {};
+    if (mtime !== undefined) {
+      custom["rclone_modified"] = unixTimeToStr(mtime, true);
+    }
+    if (ctime !== undefined) {
+      custom["rclone_created"] = unixTimeToStr(ctime, true);
+    }
+    if (Object.keys(custom).length > 0) {
+      await client.diskResourcesPatch(p, custom);
+    }
+    const entity = await this.stat(key);
+    // console.debug(`mkdir ${key} finish, ${JSON.stringify(entity)}`)
+    return entity;
+  }
+
+  async writeFile(
+    key: string,
+    content: ArrayBuffer,
+    mtime: number,
+    ctime: number
+  ): Promise<Entity> {
+    // console.debug(`writeFile ${key} begin`)
+    await this._init();
+    const client = new YandexApi(await this._getAccessToken());
+    const p = getYandexDiskPath(key, this.remoteBaseDir);
+    await client.diskResoucesUpload(p, content, true);
+    // console.debug(`writeFile ${key} upload succ`)
+    // patch?
+    const custom: Record<string, string> = {};
+    if (mtime !== undefined) {
+      custom["rclone_modified"] = unixTimeToStr(mtime, true);
+    }
+    if (ctime !== undefined) {
+      custom["rclone_created"] = unixTimeToStr(ctime, true);
+    }
+    if (Object.keys(custom).length > 0) {
+      await client.diskResourcesPatch(p, custom);
+    }
+    // console.debug(`writeFile ${key} patch succ`)
+    const entity = await this.stat(key);
+    // console.debug(`writeFile ${key} finish, ${JSON.stringify(entity)}`)
+    return entity;
+  }
+
+  async readFile(key: string): Promise<ArrayBuffer> {
+    // console.debug(`readFile ${key} begin`)
+    await this._init();
+    const client = new YandexApi(await this._getAccessToken());
+    const p = getYandexDiskPath(key, this.remoteBaseDir);
+    const content = await client.diskResoucesDownload(p);
+    // console.debug(`readFile ${key} finish, length=${content.byteLength}`)
+    return content;
+  }
+
+  async rename(key1: string, key2: string): Promise<void> {
+    await this._init();
+    throw new Error("Method not implemented.");
+  }
+
+  async rm(key: string): Promise<void> {
+    await this._init();
+    const client = new YandexApi(await this._getAccessToken());
+    const p = getYandexDiskPath(key, this.remoteBaseDir);
+    await client.diskResourcesDelete(p, false);
+  }
+
+  async checkConnect(callbackFunc?: any): Promise<boolean> {
+    // if we can init, we can connect
+    try {
+      await this._init();
+      return true;
+    } catch (err) {
+      console.debug(err);
+      callbackFunc?.(err);
+      return false;
+    }
+  }
+
+  async getUserDisplayName(): Promise<string> {
+    await this._init();
+    throw new Error("Method not implemented.");
+  }
+
+  /**
+   * https://yandex.com/dev/id/doc/en/tokens/token-invalidate
+   */
+  async revokeAuth(): Promise<any> {
+    await fetch(`https://oauth.yandex.com/revoke_token`, {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/x-www-form-urlencoded",
+      },
+      body: new URLSearchParams({
+        client_id: YANDEXDISK_CLIENT_ID ?? "",
+        client_secret: YANDEXDISK_CLIENT_SECRET ?? "",
+        access_token: this.yandexDiskConfig.refreshToken, // TODO: which token?
+      }).toString(),
+    });
+  }
+
+  allowEmptyFile(): boolean {
+    return true;
+  }
+}
@@ -0,0 +1,224 @@
+{
+  "settings_conflictaction_smart_conflict": "Smart Conflict (PRO) (beta)",
+  "settings_conflictaction_smart_conflict_desc": "<p><strong>!!It's a PRO feature! You need an online account for this feature!!</strong>(<a href=\"#settings-pro\">scroll down</a> for more info about PRO account.)</p><p><ul><li>For small markdown files, the plugin tries to merge them with diff3 algorithm.</li><li>For large files or not-markdown files, the plugin saves both files by renaming them.</li></ul></p><p><strong>Please manually backup your vaule before using this feature!</strong></p>",
+
+  "protocol_pro_connecting": "Connectting",
+  "protocol_pro_connect_manualinput_succ": "You've connected",
+  "protocol_pro_connect_fail": "Something went wrong from response from Remotely Save official website. Maybe the network connection is not good. Maybe you rejected the auth?",
+  "protocol_pro_connect_succ_revoke": "You've connected as user {{email}}. If you want to disconnect, click this button.",
+
+  "protocol_box_connecting": "Connectting",
+  "protocol_box_connect_manualinput_succ": "You've connected",
+  "protocol_box_connect_fail": "Something went wrong from response from Box official website. Maybe the network connection is not good. Maybe you rejected the auth?",
+  "protocol_box_connect_succ_revoke": "You've connected. If you want to disconnect, click this button.",
+
+  "protocol_pcloud_connecting": "Connectting",
+  "protocol_pcloud_connect_manualinput_succ": "You've connected",
+  "protocol_pcloud_connect_fail": "Something went wrong from response from pCloud website. Maybe the network connection is not good. Maybe you rejected the auth?",
+  "protocol_pcloud_connect_succ_revoke": "You've connected. If you want to disconnect, click this button.",
+
+  "protocol_yandexdisk_connecting": "Connectting",
+  "protocol_yandexdisk_connect_manualinput_succ": "You've connected",
+  "protocol_yandexdisk_connect_fail": "Something went wrong from response from Yandex Disk website. Maybe the network connection is not good. Maybe you rejected the auth?",
+  "protocol_yandexdisk_connect_succ_revoke": "You've connected. If you want to disconnect, click this button.",
+
+  "protocol_koofr_connecting": "Connectting",
+  "protocol_koofr_connect_manualinput_succ": "You've connected",
+  "protocol_koofr_connect_fail": "Something went wrong from response from Koofr website. Maybe the network connection is not good. Maybe you rejected the auth?",
+  "protocol_koofr_connect_succ_revoke": "You've connected. If you want to disconnect, click this button.",
+
+  "modal_googledriveauth_tutorial": "<p>Please firstly go to the address, then go on the auth flow. In the end, you will see a code, please paste that code here and submit.</p>",
+  "modal_googledriveauth_copybutton": "Click to copy the auth url",
+  "modal_googledriveauth_copynotice": "The auth url is copied to the clipboard!",
+  "modal_googledrivce_maualinput": "The Code from the website",
+  "modal_googledrivce_maualinput_desc": "Please input the code here from the end of auth flow, and press confirm.",
+  "modal_googledrive_maualinput_notice": "We are trying to connect to Google and update the credentials...",
+  "modal_googledrive_maualinput_succ_notice": "Great! The credentials are updated!",
+  "modal_googledrive_maualinput_fail_notice": "Oops! Failed to update the credentials. Please try again later.",
+  "modal_googledriverevokeauth_step1": "Step 1: Go to the following address, you can remove the connection there.",
+  "modal_googledriverevokeauth_step2": "Step 2: Click the button below, to clean the locally-saved login credentials.",
+  "modal_googledriverevokeauth_clean": "Clean Locally-Saved Login Credentials",
+  "modal_googledriverevokeauth_clean_desc": "You need to click the button.",
+  "modal_googledriverevokeauth_clean_button": "Clean",
+  "modal_googledriverevokeauth_clean_notice": "Cleaned!",
+  "modal_googledriverevokeauth_clean_fail": "Something goes wrong while revoking.",
+
+  "modal_boxauth_tutorial": "<p>Please firstly go to the address, then go on the auth flow. In the end, you will be redirected to here.</p>",
+  "modal_boxauth_copybutton": "Click to copy the auth url",
+  "modal_boxauth_copynotice": "The auth url is copied to the clipboard!",
+  "modal_box_maualinput": "The Code from the website",
+  "modal_box_maualinput_desc": "Please input the code here from the end of auth flow, and press confirm.",
+  "modal_box_maualinput_notice": "We are trying to connect to Box and update the credentials...",
+  "modal_box_maualinput_succ_notice": "Great! The credentials are updated!",
+  "modal_box_maualinput_fail_notice": "Oops! Failed to update the credentials. Please try again later.",
+  "modal_boxrevokeauth_step1": "Step 1: Go to the following address, you can remove the connection there.",
+  "modal_boxrevokeauth_step2": "Step 2: Click the button below, to clean the locally-saved login credentials.",
+  "modal_boxrevokeauth_clean": "Clean Locally-Saved Login Credentials",
+  "modal_boxrevokeauth_clean_desc": "You need to click the button.",
+  "modal_boxrevokeauth_clean_button": "Clean",
+  "modal_boxrevokeauth_clean_notice": "Cleaned!",
+  "modal_boxrevokeauth_clean_fail": "Something goes wrong while revoking.",
+
+  "modal_pcloudauth_tutorial": "<p>Please firstly go to the address, then go on the auth flow. In the end, you will be redirected to here.</p>",
+  "modal_pcloudauth_copybutton": "Click to copy the auth url",
+  "modal_pcloudauth_copynotice": "The auth url is copied to the clipboard!",
+  "modal_pcloudrevokeauth_step1": "Step 1: Go to the following address, you can remove the connection there.",
+  "modal_pcloudrevokeauth_step2": "Step 2: Click the button below, to clean the locally-saved login credentials.",
+  "modal_pcloudrevokeauth_clean": "Clean Locally-Saved Login Credentials",
+  "modal_pcloudrevokeauth_clean_desc": "You need to click the button.",
+  "modal_pcloudrevokeauth_clean_button": "Clean",
+  "modal_pcloudrevokeauth_clean_notice": "Cleaned!",
+  "modal_pcloudrevokeauth_clean_fail": "Something goes wrong while revoking.",
+
+  "modal_yandexdiskauth_tutorial": "<p>Please firstly go to the address, then go on the auth flow. In the end, you will be redirected to here.</p>",
+  "modal_yandexdiskauth_copybutton": "Click to copy the auth url",
+  "modal_yandexdiskauth_copynotice": "The auth url is copied to the clipboard!",
+  "modal_yandexdiskrevokeauth_step1": "Step 1: Go to the following address, you can remove the connection there.",
+  "modal_yandexdiskrevokeauth_step2": "Step 2: Click the button below, to clean the locally-saved login credentials.",
+  "modal_yandexdiskrevokeauth_clean": "Clean Locally-Saved Login Credentials",
+  "modal_yandexdiskrevokeauth_clean_desc": "You need to click the button.",
+  "modal_yandexdiskrevokeauth_clean_button": "Clean",
+  "modal_yandexdiskrevokeauth_clean_notice": "Cleaned!",
+  "modal_yandexdiskrevokeauth_clean_fail": "Something goes wrong while revoking.",
+
+  "modal_koofrauth_tutorial": "<p>Please firstly go to the address, then go on the auth flow. In the end, you will be redirected to here.</p>",
+  "modal_koofrauth_copybutton": "Click to copy the auth url",
+  "modal_koofrauth_copynotice": "The auth url is copied to the clipboard!",
+  "modal_koofrrevokeauth_step1": "Step 1: Go to the following address, you can remove the connection there.",
+  "modal_koofrrevokeauth_step2": "Step 2: Click the button below, to clean the locally-saved login credentials.",
+  "modal_koofrrevokeauth_clean": "Clean Locally-Saved Login Credentials",
+  "modal_koofrrevokeauth_clean_desc": "You need to click the button.",
+  "modal_koofrrevokeauth_clean_button": "Clean",
+  "modal_koofrrevokeauth_clean_notice": "Cleaned!",
+  "modal_koofrrevokeauth_clean_fail": "Something goes wrong while revoking.",
+
+  "modal_prorevokeauth": "Revoke auth by clicking here and follow the steps.",
+  "modal_prorevokeauth_clean": "Clean",
+  "modal_prorevokeauth_clean_desc": "Clean local auth record",
+  "modal_prorevokeauth_clean_button": "Clean",
+  "modal_prorevokeauth_clean_notice": "Local auth record is cleaned",
+  "modal_prorevokeauth_clean_fail": "Fail to clean local auth record.",
+  "modal_proauth_copybutton": "Click to copy the auth url",
+  "modal_proauth_copynotice": "The auth url is copied to the clipboard!",
+  "modal_proauth_maualinput": "The Code from the website",
+  "modal_proauth_maualinput_desc": "Please input the code here from the end of auth flow, and press confirm.",
+  "modal_proauth_maualinput_notice": "Trying to connect, wait...",
+  "modal_proauth_maualinput_conn_fail": "Failed to connect",
+
+  "settings_googledrive": "Google Drive (PRO) (beta)",
+  "settings_chooseservice_googledrive": "Google Drive (PRO) (beta)",
+  "settings_googledrive_disclaimer1": "Disclaimer: This app is NOT an official Google product. The app just uses Google Drive's public api.",
+  "settings_googledrive_disclaimer2": "Disclaimer: The information is stored locally. Other malicious/harmful/faulty plugins could read the info. If you see any unintentional access to your Google Drive, please immediately disconnect this app on https://myaccount.google.com/permissions .",
+  "settings_googledrive_pro_desc": "<p><strong>!!It's a PRO feature of Remotely Save! You need a Remotely Save online account for this feature!!</strong>(<a href=\"#settings-pro\">scroll down</a> for more info about PRO account.)</p>",
+  "settings_googledrive_notshowuphint": "Google Drive Settings Not Available",
+  "settings_googledrive_notshowuphint_desc": "Google Drive settings are not available, because you haven't subscribed to the PRO feature in your Remotely Save account.",
+  "settings_googledrive_notshowuphint_view_pro": "View PRO Settings",
+  "settings_googledrive_folder": "We will create and sync inside the folder {{remoteBaseDir}} on your Google Drive. DO NOT create this folder by yourself manually.",
+  "settings_googledrive_revoke": "Revoke Auth",
+  "settings_googledrive_revoke_desc": "You've connected. If you want to disconnect, click this button.",
+  "settings_googledrive_revoke_button": "Revoke Auth",
+  "settings_googledrive_auth": "Auth",
+  "settings_googledrive_auth_desc": "Auth.",
+  "settings_googledrive_auth_button": "Auth",
+  "settings_googledrive_connect_succ": "Great! We can connect to Google Drive!",
+  "settings_googledrive_connect_fail": "We cannot connect to Google Drive.",
+
+  "settings_box": "Box (PRO) (beta)",
+  "settings_chooseservice_box": "Box (PRO) (beta)",
+  "settings_box_disclaimer1": "Disclaimer: This app is NOT an official Box product. The app just uses Box's public api.",
+  "settings_box_disclaimer2": "Disclaimer: The information is stored locally. Other malicious/harmful/faulty plugins could read the info. If you see any unintentional access to your Box, please immediately disconnect this app on https://app.box.com/account/security .",
+  "settings_box_pro_desc": "<p><strong>!!It's a PRO feature of Remotely Save! You need a Remotely Save online account for this feature!!</strong>(<a href=\"#settings-pro\">scroll down</a> for more info about PRO account.)</p>",
+  "settings_box_notshowuphint": "Box Settings Not Available",
+  "settings_box_notshowuphint_desc": "Box settings are not available, because you haven't subscribed to the PRO feature in your Remotely Save account.",
+  "settings_box_notshowuphint_view_pro": "View PRO Settings",
+  "settings_box_folder": "We will create and sync inside the folder {{remoteBaseDir}} on your Box. DO NOT create this folder by yourself manually.",
+  "settings_box_revoke": "Revoke Auth",
+  "settings_box_revoke_desc": "You've connected. If you want to disconnect, click this button.",
+  "settings_box_revoke_button": "Revoke Auth",
+  "settings_box_auth": "Auth",
+  "settings_box_auth_desc": "Auth.",
+  "settings_box_auth_button": "Auth",
+  "settings_box_connect_succ": "Great! We can connect to Box!",
+  "settings_box_connect_fail": "We cannot connect to Box.",
+
+  "settings_pcloud": "pCloud (PRO) (beta)",
+  "settings_chooseservice_pcloud": "pCloud (PRO) (beta)",
+  "settings_pcloud_disclaimer1": "Disclaimer: This app is NOT an official pCloud product. The app just uses pCloud's public api.",
+  "settings_pcloud_disclaimer2": "Disclaimer: The information is stored locally. Other malicious/harmful/faulty plugins could read the info. If you see any unintentional access to your pCloud, please immediately disconnect this app on https://my.pcloud.com/#page=settings&settings=tab-apps .",
+  "settings_pcloud_pro_desc": "<p><strong>!!It's a PRO feature of Remotely Save! You need a Remotely Save online account for this feature!!</strong>(<a href=\"#settings-pro\">scroll down</a> for more info about PRO account.)</p>",
+  "settings_pcloud_notshowuphint": "pCloud Settings Not Available",
+  "settings_pcloud_notshowuphint_desc": "pCloud settings are not available, because you haven't subscribed to the PRO feature in your Remotely Save account.",
+  "settings_pcloud_notshowuphint_view_pro": "View PRO Settings",
+  "settings_pcloud_folder": "We will create and sync inside the folder {{remoteBaseDir}} on your pCloud. DO NOT create this folder by yourself manually.",
+  "settings_pcloud_revoke": "Revoke Auth",
+  "settings_pcloud_revoke_desc": "You've connected. If you want to disconnect, click this button.",
+  "settings_pcloud_revoke_button": "Revoke Auth",
+  "settings_pcloud_auth": "Auth",
+  "settings_pcloud_auth_desc": "Auth.",
+  "settings_pcloud_auth_button": "Auth",
+  "settings_pcloud_emptyfile": "Empty File",
+  "settings_pcloud_emptyfile_desc": "pCloud API doesn't work with empty file. How to deal with it?",
+  "settings_pcloud_emptyfile_skip": "Skip",
+  "settings_pcloud_emptyfile_error": "Error",
+  "settings_pcloud_connect_succ": "Great! We can connect to pCloud!",
+  "settings_pcloud_connect_fail": "We cannot connect to pCloud.",
+
+  "settings_yandexdisk": "Yandex Disk (PRO) (beta)",
+  "settings_chooseservice_yandexdisk": "Yandex Disk (PRO) (beta)",
+  "settings_yandexdisk_disclaimer1": "Disclaimer: This app is NOT an official Yandex Disk product. The app just uses Yandex Disk's public api.",
+  "settings_yandexdisk_disclaimer2": "Disclaimer: The information is stored locally. Other malicious/harmful/faulty plugins could read the info. If you see any unintentional access to your Yandex Disk, please immediately disconnect this app on https://app.yandexdisk.com/account/security .",
+  "settings_yandexdisk_pro_desc": "<p><strong>!!It's a PRO feature of Remotely Save! You need a Remotely Save online account for this feature!!</strong>(<a href=\"#settings-pro\">scroll down</a> for more info about PRO account.)</p>",
+  "settings_yandexdisk_notshowuphint": "Yandex Disk Settings Not Available",
+  "settings_yandexdisk_notshowuphint_desc": "Yandex Disk settings are not available, because you haven't subscribed to the PRO feature in your Remotely Save account.",
+  "settings_yandexdisk_notshowuphint_view_pro": "View PRO Settings",
+  "settings_yandexdisk_folder": "We will create and sync inside the folder {{remoteBaseDir}} on your Yandex Disk. DO NOT create this folder by yourself manually.",
+  "settings_yandexdisk_revoke": "Revoke Auth",
+  "settings_yandexdisk_revoke_desc": "You've connected. If you want to disconnect, click this button.",
+  "settings_yandexdisk_revoke_button": "Revoke Auth",
+  "settings_yandexdisk_auth": "Auth",
+  "settings_yandexdisk_auth_desc": "Auth.",
+  "settings_yandexdisk_auth_button": "Auth",
+  "settings_yandexdisk_connect_succ": "Great! We can connect to Yandex Disk!",
+  "settings_yandexdisk_connect_fail": "We cannot connect to Yandex Disk.",
+
+  "settings_koofr": "Koofr (PRO) (beta)",
+  "settings_chooseservice_koofr": "Koofr (PRO) (beta)",
+  "settings_koofr_disclaimer1": "Disclaimer: This app is NOT an official Koofr product. The app just uses Koofr's public api.",
+  "settings_koofr_disclaimer2": "Disclaimer: The information is stored locally. Other malicious/harmful/faulty plugins could read the info. If you see any unintentional access to your Koofr, please immediately disconnect this app on https://app.koofr.net/app/admin/preferences/security .",
+  "settings_koofr_pro_desc": "<p><strong>!!It's a PRO feature of Remotely Save! You need a Remotely Save online account for this feature!!</strong>(<a href=\"#settings-pro\">scroll down</a> for more info about PRO account.)</p>",
+  "settings_koofr_notshowuphint": "Koofr Settings Not Available",
+  "settings_koofr_notshowuphint_desc": "Koofr settings are not available, because you haven't subscribed to the PRO feature in your Remotely Save account.",
+  "settings_koofr_notshowuphint_view_pro": "View PRO Settings",
+  "settings_koofr_folder": "We will create and sync inside the folder {{remoteBaseDir}} on your Koofr. DO NOT create this folder by yourself manually.",
+  "settings_koofr_revoke": "Revoke Auth",
+  "settings_koofr_revoke_desc": "You've connected. If you want to disconnect, click this button.",
+  "settings_koofr_revoke_button": "Revoke Auth",
+  "settings_koofr_auth": "Auth",
+  "settings_koofr_auth_desc": "Auth.",
+  "settings_koofr_auth_button": "Auth",
+  "settings_koofr_connect_succ": "Great! We can connect to Koofr!",
+  "settings_koofr_connect_fail": "We cannot connect to Koofr.",
+
+  "settings_export_googledrive_button": "Export Google Drive Part",
+  "settings_export_box_button": "Export Box Part",
+  "settings_export_pcloud_button": "Export pCloud Part",
+  "settings_export_yandexdisk_button": "Export Yandex Disk Part",
+  "settings_export_koofr_button": "Export Koofr Part",
+
+  "settings_pro": "Account (for PRO features)",
+  "settings_pro_tutorial": "<p>Using <stong>basic</strong> features of Remotely Save is <strong>FREE</strong> and do <strong>NOT</strong> need an account.</p><p>However, you will <strong>need</strong> an online account and <strong>PAY</strong> for the <strong>PRO</strong> features such as smart conflict.</p><p>Firstly please click the button to sign up and sign in to the website: <a href=\"https://remotelysave.com\">https://remotelysave.com</a>. Notice: It's different from, and NOT affiliated with Obsidian account.</p><p>Secondly please \"connect\" your local device to your online account.",
+  "settings_pro_features": "Features",
+  "settings_pro_features_desc": "Here are features you've enabled:<br/>{{{features}}}",
+  "settings_pro_features_refresh_button": "Check again",
+  "settings_pro_features_refresh_fetch": "Fetching...",
+  "settings_pro_features_refresh_succ": "Refreshed!",
+  "settings_pro_revoke": "Disconnect",
+  "settings_pro_revoke_desc": "You've connected as user {{email}}. If you want to disconnect, click this button.",
+  "settings_pro_revoke_button": "Disconnect",
+  "settings_pro_intro": "Remotely Save Online Account",
+  "settings_pro_intro_desc": "Click the button to jump to the website to sign up or sign in.",
+  "settings_pro_intro_button": "Sign Up / Sign In",
+  "settings_pro_auth": "Connect",
+  "settings_pro_auth_desc": "After you sign up and sign in the account on the website, you need to connect your plugin here to the online account. Please click the button to connect.",
+  "settings_pro_auth_button": "Connect"
+}
@@ -0,0 +1,9 @@
+import en from "./en.json";
+import zh_cn from "./zh_cn.json";
+import zh_tw from "./zh_tw.json";
+
+export const LANGS = {
+  en: en,
+  zh_cn: zh_cn,
+  zh_tw: zh_tw,
+};
@@ -0,0 +1,234 @@
+{
+  "settings_conflictaction_smart_conflict": "智能处理冲突 (PRO) (beta)",
+  "settings_conflictaction_smart_conflict_desc": "<p><strong>！！这是 PRO（付费）功能! 您需要在线账号来使用此功能！！</strong>（<a href=\"#settings-pro\">向下滑</a>可以看到 PRO 账号的更多信息。）</p><p><ul><li>小 markdown 文件，本插件尝试使用 diff3 算法合并它；</li><li>对于大文件或非 markdown 文件，本插件尝试改名字并均进行保存。</li></ul></p><p><strong>请注意先手动备份 vault 文件再用此功能！</strong></p>",
+
+  "protocol_pro_connecting": "正在连接",
+  "protocol_pro_connect_manualinput_succ": "连接成功",
+  "protocol_pro_connect_fail": "Remotely Save 官网返回错误。可能是网络连接不稳定。也可能是您拒绝了授权？",
+  "protocol_pro_connect_succ_revoke": "您已连接上账号 {{email}}。如果要取消连接，请点击此按钮。",
+
+  "protocol_box_connecting": "正在连接",
+  "protocol_box_connect_manualinput_succ": "连接成功",
+  "protocol_box_connect_fail": "Box 官网返回错误。可能是网络连接不稳定。也可能是您拒绝了授权？",
+  "protocol_box_connect_succ_revoke": "您已连接上账号。如果要取消连接，请点击此按钮。",
+
+  "protocol_pcloud_connecting": "正在连接",
+  "protocol_pcloud_connect_manualinput_succ": "连接成功",
+  "protocol_pcloud_connect_fail": "pCloud 官网返回错误。可能是网络连接不稳定。也可能是您拒绝了授权？",
+  "protocol_pcloud_connect_succ_revoke": "您已连接上账号。如果要取消连接，请点击此按钮。",
+
+  "protocol_yandexdisk_connecting": "正在连接",
+  "protocol_yandexdisk_connect_manualinput_succ": "连接成功",
+  "protocol_yandexdisk_connect_fail": "Yandex Disk 官网返回错误。可能是网络连接不稳定。也可能是您拒绝了授权？",
+  "protocol_yandexdisk_connect_succ_revoke": "您已连接上账号。如果要取消连接，请点击此按钮。",
+
+  "protocol_koofr_connecting": "正在连接",
+  "protocol_koofr_connect_manualinput_succ": "连接成功",
+  "protocol_koofr_connect_fail": "Yandex Disk 官网返回错误。可能是网络连接不稳定。也可能是您拒绝了授权？",
+  "protocol_koofr_connect_succ_revoke": "您已连接上账号。如果要取消连接，请点击此按钮。",
+
+  "modal_googledriveauth_tutorial": "<p>请访问此网址，然后会进入授权流程。最后，您会看到一个码，请复制粘贴到这里然后提交。</p>",
+  "modal_googledriveauth_copybutton": "点击以复制网址",
+  "modal_googledriveauth_copynotice": "网址已复制！",
+  "modal_googledrivce_maualinput": "网站上的码",
+  "modal_googledrivce_maualinput_desc": "请粘贴授权流程最后的那个码，然后点击确认。",
+  "modal_googledrive_maualinput_notice": "正在尝试连接 Google 并更新授权信息......",
+  "modal_googledrive_maualinput_succ_notice": "很好！授权信息已更新！",
+  "modal_googledrive_maualinput_fail_notice": "更新授权信息失败。请稍后重试。",
+  "modal_googledriverevokeauth_step1": "第 1 步：访问以下网址，可以删除连接。",
+  "modal_googledriverevokeauth_step2": "第 2 步：点击以下按钮，从而清理本地的登录信息。",
+  "modal_googledriverevokeauth_clean": "清理本地登录信息",
+  "modal_googledriverevokeauth_clean_desc": "您需要点击此按钮。",
+  "modal_googledriverevokeauth_clean_button": "清理",
+  "modal_googledriverevokeauth_clean_notice": "已清理！",
+  "modal_googledriverevokeauth_clean_fail": "清理授权时候发生了错误。",
+
+  "modal_boxauth_tutorial": "<p>请访问此网址，然后会进入授权流程。最后，您会被重定向回来。</p>",
+  "modal_boxauth_copybutton": "点击以复制网址",
+  "modal_boxauth_copynotice": "网址已复制！",
+  "modal_box_maualinput": "网站上的码",
+  "modal_box_maualinput_desc": "请粘贴授权流程最后的那个码，然后点击确认。",
+  "modal_box_maualinput_notice": "正在尝试连接 Box 并更新授权信息......",
+  "modal_box_maualinput_succ_notice": "很好！授权信息已更新！",
+  "modal_box_maualinput_fail_notice": "更新授权信息失败。请稍后重试。",
+  "modal_boxrevokeauth_step1": "第 1 步：访问以下网址，可以删除连接。",
+  "modal_boxrevokeauth_step2": "第 2 步：点击以下按钮，从而清理本地的登录信息。",
+  "modal_boxrevokeauth_clean": "清理本地登录信息",
+  "modal_boxrevokeauth_clean_desc": "您需要点击此按钮。",
+  "modal_boxrevokeauth_clean_button": "清理",
+  "modal_boxrevokeauth_clean_notice": "已清理！",
+  "modal_boxrevokeauth_clean_fail": "清理授权时候发生了错误。",
+
+  "modal_pcloudauth_tutorial": "<p>请访问此网址，然后会进入授权流程。最后，您会被重定向回来。</p>",
+  "modal_pcloudauth_copybutton": "点击以复制网址",
+  "modal_pcloudauth_copynotice": "网址已复制！",
+  "modal_pcloudrevokeauth_step1": "第 1 步：访问以下网址，可以删除连接。",
+  "modal_pcloudrevokeauth_step2": "第 2 步：点击以下按钮，从而清理本地的登录信息。",
+  "modal_pcloudrevokeauth_clean": "清理本地登录信息",
+  "modal_pcloudrevokeauth_clean_desc": "您需要点击此按钮。",
+  "modal_pcloudrevokeauth_clean_button": "清理",
+  "modal_pcloudrevokeauth_clean_notice": "已清理！",
+  "modal_pcloudrevokeauth_clean_fail": "清理授权时候发生了错误。",
+
+  "modal_yandexdiskauth_tutorial": "<p>请访问此网址，然后会进入授权流程。最后，您会被重定向回来。</p>",
+  "modal_yandexdiskauth_copybutton": "点击以复制网址",
+  "modal_yandexdiskauth_copynotice": "网址已复制！",
+  "modal_yandexdisk_maualinput": "网站上的码",
+  "modal_yandexdisk_maualinput_desc": "请粘贴授权流程最后的那个码，然后点击确认。",
+  "modal_yandexdisk_maualinput_notice": "正在尝试连接 Yandex Disk 并更新授权信息......",
+  "modal_yandexdisk_maualinput_succ_notice": "很好！授权信息已更新！",
+  "modal_yandexdisk_maualinput_fail_notice": "更新授权信息失败。请稍后重试。",
+  "modal_yandexdiskrevokeauth_step1": "第 1 步：访问以下网址，可以删除连接。",
+  "modal_yandexdiskrevokeauth_step2": "第 2 步：点击以下按钮，从而清理本地的登录信息。",
+  "modal_yandexdiskrevokeauth_clean": "清理本地登录信息",
+  "modal_yandexdiskrevokeauth_clean_desc": "您需要点击此按钮。",
+  "modal_yandexdiskrevokeauth_clean_button": "清理",
+  "modal_yandexdiskrevokeauth_clean_notice": "已清理！",
+  "modal_yandexdiskrevokeauth_clean_fail": "清理授权时候发生了错误。",
+
+  "modal_koofrauth_tutorial": "<p>请访问此网址，然后会进入授权流程。最后，您会被重定向回来。</p>",
+  "modal_koofrauth_copybutton": "点击以复制网址",
+  "modal_koofrauth_copynotice": "网址已复制！",
+  "modal_koofr_maualinput": "网站上的码",
+  "modal_koofr_maualinput_desc": "请粘贴授权流程最后的那个码，然后点击确认。",
+  "modal_koofr_maualinput_notice": "正在尝试连接 Yandex Disk 并更新授权信息......",
+  "modal_koofr_maualinput_succ_notice": "很好！授权信息已更新！",
+  "modal_koofr_maualinput_fail_notice": "更新授权信息失败。请稍后重试。",
+  "modal_koofrrevokeauth_step1": "第 1 步：访问以下网址，可以删除连接。",
+  "modal_koofrrevokeauth_step2": "第 2 步：点击以下按钮，从而清理本地的登录信息。",
+  "modal_koofrrevokeauth_clean": "清理本地登录信息",
+  "modal_koofrrevokeauth_clean_desc": "您需要点击此按钮。",
+  "modal_koofrrevokeauth_clean_button": "清理",
+  "modal_koofrrevokeauth_clean_notice": "已清理！",
+  "modal_koofrrevokeauth_clean_fail": "清理授权时候发生了错误。",
+
+  "modal_prorevokeauth": "点击这里和按照步骤取消授权。",
+  "modal_prorevokeauth_clean": "清理",
+  "modal_prorevokeauth_clean_desc": "清理本地授权记录",
+  "modal_prorevokeauth_clean_button": "清理",
+  "modal_prorevokeauth_clean_notice": "清理本地授权记录完毕",
+  "modal_prorevokeauth_clean_fail": "清理本地授权记录粗错。",
+  "modal_proauth_copybutton": "点击从而复制授权网址",
+  "modal_proauth_copynotice": "授权网址已复制！",
+  "modal_proauth_maualinput": "网站的授权码",
+  "modal_proauth_maualinput_desc": "请输入授权流程最后一步的授权码，然后点击确认。",
+  "modal_proauth_maualinput_notice": "正在连接，请稍候......",
+  "modal_proauth_maualinput_conn_fail": "连接失败",
+
+  "settings_googledrive": "Google Drive (PRO) (beta)",
+  "settings_chooseservice_googledrive": "Google Drive (PRO) (beta)",
+  "settings_googledrive_disclaimer1": "声明：本插件不是 Google 的官方产品。只是用到了它的公开 API。",
+  "settings_googledrive_disclaimer2": "声明：您所输入的信息存储于本地。其它有害的或者出错的插件，是有可能读取到这些信息的。如果您发现任何不符合预期的 Google Drive 访问，请立刻在以下网站操作断开连接： https://myaccount.google.com/permissions 。",
+  "settings_googledrive_pro_desc": "<p><strong>！！这是 PRO（付费）功能! 您需要在线账号来使用此功能！！</strong>（<a href=\"#settings-pro\">向下滑</a>可以看到 PRO 账号的更多信息。）</p>",
+  "settings_googledrive_notshowuphint": "Google Drive 设置不可用",
+  "settings_googledrive_notshowuphint_desc": "Google Drive 设置不可用，因为您没有在 Remotely Save 账号里开启这个 PRO 功能。",
+  "settings_googledrive_notshowuphint_view_pro": "查看 PRO 相关设置",
+  "settings_googledrive_folder": "我们会在 Google Drive 创建此文件夹并同步内容进去： {{remoteBaseDir}} 。请不要手动在网站上创建。",
+  "settings_googledrive_revoke": "撤回鉴权",
+  "settings_googledrive_revoke_desc": "您现在已连接。如果想取消连接，请点击此按钮。",
+  "settings_googledrive_revoke_button": "撤回鉴权",
+  "settings_googledrive_auth": "鉴权",
+  "settings_googledrive_auth_desc": "鉴权.",
+  "settings_googledrive_auth_button": "鉴权",
+  "settings_googledrive_connect_succ": "很好！我们可连接上 Google Drive！",
+  "settings_googledrive_connect_fail": "我们未能连接上 Google Drive。",
+
+  "settings_box": "Box (PRO) (beta)",
+  "settings_chooseservice_box": "Box (PRO) (beta)",
+  "settings_box_disclaimer1": "声明：本插件不是 Box 的官方产品。只是用到了它的公开 API。",
+  "settings_box_disclaimer2": "声明：您所输入的信息存储于本地。其它有害的或者出错的插件，是有可能读取到这些信息的。如果您发现任何不符合预期的 Box 访问，请立刻在以下网站操作断开连接： https://app.box.com/account/security 。",
+  "settings_box_pro_desc": "<p><strong>！！这是 PRO（付费）功能! 您需要在线账号来使用此功能！！</strong>（<a href=\"#settings-pro\">向下滑</a>可以看到 PRO 账号的更多信息。）</p>",
+  "settings_box_notshowuphint": "Box 设置不可用",
+  "settings_box_notshowuphint_desc": "Box 设置不可用，因为您没有在 Remotely Save 账号里开启这个 PRO 功能。",
+  "settings_box_notshowuphint_view_pro": "查看 PRO 相关设置",
+  "settings_box_folder": "我们会在 Box 创建此文件夹并同步内容进去： {{remoteBaseDir}} 。请不要手动在网站上创建。",
+  "settings_box_revoke": "撤回鉴权",
+  "settings_box_revoke_desc": "您现在已连接。如果想取消连接，请点击此按钮。",
+  "settings_box_revoke_button": "撤回鉴权",
+  "settings_box_auth": "鉴权",
+  "settings_box_auth_desc": "鉴权.",
+  "settings_box_auth_button": "鉴权",
+  "settings_box_connect_succ": "很好！我们可连接上 Box！",
+  "settings_box_connect_fail": "我们未能连接上 Box。",
+
+  "settings_pcloud": "pCloud (PRO) (beta)",
+  "settings_chooseservice_pcloud": "pCloud (PRO) (beta)",
+  "settings_pcloud_disclaimer1": "声明：本插件不是 pCloud 的官方产品。只是用到了它的公开 API。",
+  "settings_pcloud_disclaimer2": "声明：您所输入的信息存储于本地。其它有害的或者出错的插件，是有可能读取到这些信息的。如果您发现任何不符合预期的 pCloud 访问，请立刻在以下网站操作断开连接： https://my.pcloud.com/#page=settings&settings=tab-apps 。",
+  "settings_pcloud_pro_desc": "<p><strong>！！这是 PRO（付费）功能! 您需要在线账号来使用此功能！！</strong>（<a href=\"#settings-pro\">向下滑</a>可以看到 PRO 账号的更多信息。）</p>",
+  "settings_pcloud_notshowuphint": "pCloud 设置不可用",
+  "settings_pcloud_notshowuphint_desc": "pCloud 设置不可用，因为您没有在 Remotely Save 账号里开启这个 PRO 功能。",
+  "settings_pcloud_notshowuphint_view_pro": "查看 PRO 相关设置",
+  "settings_pcloud_folder": "我们会在 pCloud 创建此文件夹并同步内容进去： {{remoteBaseDir}} 。请不要手动在网站上创建。",
+  "settings_pcloud_revoke": "撤回鉴权",
+  "settings_pcloud_revoke_desc": "您现在已连接。如果想取消连接，请点击此按钮。",
+  "settings_pcloud_revoke_button": "撤回鉴权",
+  "settings_pcloud_auth": "鉴权",
+  "settings_pcloud_auth_desc": "鉴权.",
+  "settings_pcloud_auth_button": "鉴权",
+  "settings_pcloud_emptyfile": "空文件",
+  "settings_pcloud_emptyfile_desc": "pCloud API 不支持上传空文件，怎么处理？",
+  "settings_pcloud_emptyfile_skip": "跳过",
+  "settings_pcloud_emptyfile_error": "提示错误",
+  "settings_pcloud_connect_succ": "很好！我们可连接上 pCloud！",
+  "settings_pcloud_connect_fail": "我们未能连接上 pCloud。",
+
+  "settings_yandexdisk": "Yandex Disk (PRO) (beta)",
+  "settings_chooseservice_yandexdisk": "Yandex Disk (PRO) (beta)",
+  "settings_yandexdisk_disclaimer1": "声明：本插件不是 Yandex Disk 的官方产品。只是用到了它的公开 API。",
+  "settings_yandexdisk_disclaimer2": "声明：您所输入的信息存储于本地。其它有害的或者出错的插件，是有可能读取到这些信息的。如果您发现任何不符合预期的 Yandex Disk 访问，请立刻在以下网站操作断开连接： https://id.yandex.com/profile/devices 。",
+  "settings_yandexdisk_pro_desc": "<p><strong>！！这是 PRO（付费）功能! 您需要在线账号来使用此功能！！</strong>（<a href=\"#settings-pro\">向下滑</a>可以看到 PRO 账号的更多信息。）</p>",
+  "settings_yandexdisk_notshowuphint": "Yandex Disk 设置不可用",
+  "settings_yandexdisk_notshowuphint_desc": "Yandex Disk 设置不可用，因为您没有在 Remotely Save 账号里开启这个 PRO 功能。",
+  "settings_yandexdisk_notshowuphint_view_pro": "查看 PRO 相关设置",
+  "settings_yandexdisk_folder": "我们会在 Yandex Disk 创建此文件夹并同步内容进去： {{remoteBaseDir}} 。请不要手动在网站上创建。",
+  "settings_yandexdisk_revoke": "撤回鉴权",
+  "settings_yandexdisk_revoke_desc": "您现在已连接。如果想取消连接，请点击此按钮。",
+  "settings_yandexdisk_revoke_button": "撤回鉴权",
+  "settings_yandexdisk_auth": "鉴权",
+  "settings_yandexdisk_auth_desc": "鉴权.",
+  "settings_yandexdisk_auth_button": "鉴权",
+  "settings_yandexdisk_connect_succ": "很好！我们可连接上 Yandex Disk！",
+  "settings_yandexdisk_connect_fail": "我们未能连接上 Yandex Disk。",
+
+  "settings_koofr": "Koofr (PRO) (beta)",
+  "settings_chooseservice_koofr": "Koofr (PRO) (beta)",
+  "settings_koofr_disclaimer1": "声明：本插件不是 Koofr 的官方产品。只是用到了它的公开 API。",
+  "settings_koofr_disclaimer2": "声明：您所输入的信息存储于本地。其它有害的或者出错的插件，是有可能读取到这些信息的。如果您发现任何不符合预期的 Koofr 访问，请立刻在以下网站操作断开连接： https://app.koofr.net/app/admin/preferences/security 。",
+  "settings_koofr_pro_desc": "<p><strong>！！这是 PRO（付费）功能! 您需要在线账号来使用此功能！！</strong>（<a href=\"#settings-pro\">向下滑</a>可以看到 PRO 账号的更多信息。）</p>",
+  "settings_koofr_notshowuphint": "Koofr 设置不可用",
+  "settings_koofr_notshowuphint_desc": "Koofr 设置不可用，因为您没有在 Remotely Save 账号里开启这个 PRO 功能。",
+  "settings_koofr_notshowuphint_view_pro": "查看 PRO 相关设置",
+  "settings_koofr_folder": "我们会在 Koofr 创建此文件夹并同步内容进去： {{remoteBaseDir}} 。请不要手动在网站上创建。",
+  "settings_koofr_revoke": "撤回鉴权",
+  "settings_koofr_revoke_desc": "您现在已连接。如果想取消连接，请点击此按钮。",
+  "settings_koofr_revoke_button": "撤回鉴权",
+  "settings_koofr_auth": "鉴权",
+  "settings_koofr_auth_desc": "鉴权.",
+  "settings_koofr_auth_button": "鉴权",
+  "settings_koofr_connect_succ": "很好！我们可连接上 Koofr！",
+  "settings_koofr_connect_fail": "我们未能连接上 Koofr。",
+
+  "settings_export_googledrive_button": "导出 Google Drive 部分",
+  "settings_export_box_button": "导出 Box 部分",
+  "settings_export_pcloud_button": "导出 pCloud 部分",
+  "settings_export_yandexdisk_button": "导出 Yandex Disk 部分",
+  "settings_export_koofr_button": "导出 Koofr 部分",
+
+  "settings_pro": "账号（PRO 付费功能）",
+  "settings_pro_tutorial": "<p>使用 Remotely Save 的<stong>基本</strong>功能是<strong>免费的</strong>，而且<strong>不</strong>需要注册对应账号。</p><p>但是，您<strong>需要</strong>注册账号和对<strong>PRO</strong>功能<strong>付费</strong>使用，如智能处理冲突功能。</p><p>第一步：点击按钮从而注册和登录网站：<a href=\"https://remotelysave.com\">https://remotelysave.com</a>。注意：这和 Obsidian 官方账号无关，是不同的账号。</p><p>第二部：点击“连接”按钮，从而连接本设备和在线账号。",
+  "settings_pro_features": "功能",
+  "settings_pro_features_desc": "您开通了以下功能：<br/>{{{features}}}",
+  "settings_pro_features_refresh_button": "再次检查",
+  "settings_pro_features_refresh_fetch": "正在获取数据......",
+  "settings_pro_features_refresh_succ": "已刷新！",
+  "settings_pro_revoke": "断开连接",
+  "settings_pro_revoke_desc": "您已连接上账号 {{email}}。如果要取消连接，请点击此按钮。",
+  "settings_pro_revoke_button": "断开连接",
+  "settings_pro_intro": "Remotely Save 账号",
+  "settings_pro_intro_desc": "点击此按钮，从而到网站上注册和登录。",
+  "settings_pro_intro_button": "注册或登录",
+  "settings_pro_auth": "连接",
+  "settings_pro_auth_desc": "在网站上注册和登录后，您需要“连接”本设备和在线账号。请点击按钮开始连接。",
+  "settings_pro_auth_button": "连接"
+}
@@ -0,0 +1,234 @@
+{
+  "settings_conflictaction_smart_conflict": "智慧處理衝突 (PRO) (beta)",
+  "settings_conflictaction_smart_conflict_desc": "<p><strong>！！這是 PRO（付費）功能! 您需要線上賬號來使用此功能！！</strong>（<a href=\"#settings-pro\">向下滑</a>可以看到 PRO 賬號的更多資訊。）</p><p><ul><li>小 markdown 檔案，本外掛嘗試使用 diff3 演算法合併它；</li><li>對於大檔案或非 markdown 檔案，本外掛嘗試改名字並均進行儲存。</li></ul></p><p><strong>請注意先手動備份 vault 檔案再用此功能！</strong></p>",
+
+  "protocol_pro_connecting": "正在連線",
+  "protocol_pro_connect_manualinput_succ": "連線成功",
+  "protocol_pro_connect_fail": "Remotely Save 官網返回錯誤。可能是網路連線不穩定。也可能是您拒絕了授權？",
+  "protocol_pro_connect_succ_revoke": "您已連線上賬號 {{email}}。如果要取消連線，請點選此按鈕。",
+
+  "protocol_box_connecting": "正在連線",
+  "protocol_box_connect_manualinput_succ": "連線成功",
+  "protocol_box_connect_fail": "Box 官網返回錯誤。可能是網路連線不穩定。也可能是您拒絕了授權？",
+  "protocol_box_connect_succ_revoke": "您已連線上賬號。如果要取消連線，請點選此按鈕。",
+
+  "protocol_pcloud_connecting": "正在連線",
+  "protocol_pcloud_connect_manualinput_succ": "連線成功",
+  "protocol_pcloud_connect_fail": "pCloud 官網返回錯誤。可能是網路連線不穩定。也可能是您拒絕了授權？",
+  "protocol_pcloud_connect_succ_revoke": "您已連線上賬號。如果要取消連線，請點選此按鈕。",
+
+  "protocol_yandexdisk_connecting": "正在連線",
+  "protocol_yandexdisk_connect_manualinput_succ": "連線成功",
+  "protocol_yandexdisk_connect_fail": "Yandex Disk 官網返回錯誤。可能是網路連線不穩定。也可能是您拒絕了授權？",
+  "protocol_yandexdisk_connect_succ_revoke": "您已連線上賬號。如果要取消連線，請點選此按鈕。",
+
+  "protocol_koofr_connecting": "正在連線",
+  "protocol_koofr_connect_manualinput_succ": "連線成功",
+  "protocol_koofr_connect_fail": "Yandex Disk 官網返回錯誤。可能是網路連線不穩定。也可能是您拒絕了授權？",
+  "protocol_koofr_connect_succ_revoke": "您已連線上賬號。如果要取消連線，請點選此按鈕。",
+
+  "modal_googledriveauth_tutorial": "<p>請訪問此網址，然後會進入授權流程。最後，您會看到一個碼，請複製貼上到這裡然後提交。</p>",
+  "modal_googledriveauth_copybutton": "點選以複製網址",
+  "modal_googledriveauth_copynotice": "網址已複製！",
+  "modal_googledrivce_maualinput": "網站上的碼",
+  "modal_googledrivce_maualinput_desc": "請貼上授權流程最後的那個碼，然後點選確認。",
+  "modal_googledrive_maualinput_notice": "正在嘗試連線 Google 並更新授權資訊......",
+  "modal_googledrive_maualinput_succ_notice": "很好！授權資訊已更新！",
+  "modal_googledrive_maualinput_fail_notice": "更新授權資訊失敗。請稍後重試。",
+  "modal_googledriverevokeauth_step1": "第 1 步：訪問以下網址，可以刪除連線。",
+  "modal_googledriverevokeauth_step2": "第 2 步：點選以下按鈕，從而清理本地的登入資訊。",
+  "modal_googledriverevokeauth_clean": "清理本地登入資訊",
+  "modal_googledriverevokeauth_clean_desc": "您需要點選此按鈕。",
+  "modal_googledriverevokeauth_clean_button": "清理",
+  "modal_googledriverevokeauth_clean_notice": "已清理！",
+  "modal_googledriverevokeauth_clean_fail": "清理授權時候發生了錯誤。",
+
+  "modal_boxauth_tutorial": "<p>請訪問此網址，然後會進入授權流程。最後，您會被重定向回來。</p>",
+  "modal_boxauth_copybutton": "點選以複製網址",
+  "modal_boxauth_copynotice": "網址已複製！",
+  "modal_box_maualinput": "網站上的碼",
+  "modal_box_maualinput_desc": "請貼上授權流程最後的那個碼，然後點選確認。",
+  "modal_box_maualinput_notice": "正在嘗試連線 Box 並更新授權資訊......",
+  "modal_box_maualinput_succ_notice": "很好！授權資訊已更新！",
+  "modal_box_maualinput_fail_notice": "更新授權資訊失敗。請稍後重試。",
+  "modal_boxrevokeauth_step1": "第 1 步：訪問以下網址，可以刪除連線。",
+  "modal_boxrevokeauth_step2": "第 2 步：點選以下按鈕，從而清理本地的登入資訊。",
+  "modal_boxrevokeauth_clean": "清理本地登入資訊",
+  "modal_boxrevokeauth_clean_desc": "您需要點選此按鈕。",
+  "modal_boxrevokeauth_clean_button": "清理",
+  "modal_boxrevokeauth_clean_notice": "已清理！",
+  "modal_boxrevokeauth_clean_fail": "清理授權時候發生了錯誤。",
+
+  "modal_pcloudauth_tutorial": "<p>請訪問此網址，然後會進入授權流程。最後，您會被重定向回來。</p>",
+  "modal_pcloudauth_copybutton": "點選以複製網址",
+  "modal_pcloudauth_copynotice": "網址已複製！",
+  "modal_pcloudrevokeauth_step1": "第 1 步：訪問以下網址，可以刪除連線。",
+  "modal_pcloudrevokeauth_step2": "第 2 步：點選以下按鈕，從而清理本地的登入資訊。",
+  "modal_pcloudrevokeauth_clean": "清理本地登入資訊",
+  "modal_pcloudrevokeauth_clean_desc": "您需要點選此按鈕。",
+  "modal_pcloudrevokeauth_clean_button": "清理",
+  "modal_pcloudrevokeauth_clean_notice": "已清理！",
+  "modal_pcloudrevokeauth_clean_fail": "清理授權時候發生了錯誤。",
+
+  "modal_yandexdiskauth_tutorial": "<p>請訪問此網址，然後會進入授權流程。最後，您會被重定向回來。</p>",
+  "modal_yandexdiskauth_copybutton": "點選以複製網址",
+  "modal_yandexdiskauth_copynotice": "網址已複製！",
+  "modal_yandexdisk_maualinput": "網站上的碼",
+  "modal_yandexdisk_maualinput_desc": "請貼上授權流程最後的那個碼，然後點選確認。",
+  "modal_yandexdisk_maualinput_notice": "正在嘗試連線 Yandex Disk 並更新授權資訊......",
+  "modal_yandexdisk_maualinput_succ_notice": "很好！授權資訊已更新！",
+  "modal_yandexdisk_maualinput_fail_notice": "更新授權資訊失敗。請稍後重試。",
+  "modal_yandexdiskrevokeauth_step1": "第 1 步：訪問以下網址，可以刪除連線。",
+  "modal_yandexdiskrevokeauth_step2": "第 2 步：點選以下按鈕，從而清理本地的登入資訊。",
+  "modal_yandexdiskrevokeauth_clean": "清理本地登入資訊",
+  "modal_yandexdiskrevokeauth_clean_desc": "您需要點選此按鈕。",
+  "modal_yandexdiskrevokeauth_clean_button": "清理",
+  "modal_yandexdiskrevokeauth_clean_notice": "已清理！",
+  "modal_yandexdiskrevokeauth_clean_fail": "清理授權時候發生了錯誤。",
+
+  "modal_koofrauth_tutorial": "<p>請訪問此網址，然後會進入授權流程。最後，您會被重定向回來。</p>",
+  "modal_koofrauth_copybutton": "點選以複製網址",
+  "modal_koofrauth_copynotice": "網址已複製！",
+  "modal_koofr_maualinput": "網站上的碼",
+  "modal_koofr_maualinput_desc": "請貼上授權流程最後的那個碼，然後點選確認。",
+  "modal_koofr_maualinput_notice": "正在嘗試連線 Yandex Disk 並更新授權資訊......",
+  "modal_koofr_maualinput_succ_notice": "很好！授權資訊已更新！",
+  "modal_koofr_maualinput_fail_notice": "更新授權資訊失敗。請稍後重試。",
+  "modal_koofrrevokeauth_step1": "第 1 步：訪問以下網址，可以刪除連線。",
+  "modal_koofrrevokeauth_step2": "第 2 步：點選以下按鈕，從而清理本地的登入資訊。",
+  "modal_koofrrevokeauth_clean": "清理本地登入資訊",
+  "modal_koofrrevokeauth_clean_desc": "您需要點選此按鈕。",
+  "modal_koofrrevokeauth_clean_button": "清理",
+  "modal_koofrrevokeauth_clean_notice": "已清理！",
+  "modal_koofrrevokeauth_clean_fail": "清理授權時候發生了錯誤。",
+
+  "modal_prorevokeauth": "點選這裡和按照步驟取消授權。",
+  "modal_prorevokeauth_clean": "清理",
+  "modal_prorevokeauth_clean_desc": "清理本地授權記錄",
+  "modal_prorevokeauth_clean_button": "清理",
+  "modal_prorevokeauth_clean_notice": "清理本地授權記錄完畢",
+  "modal_prorevokeauth_clean_fail": "清理本地授權記錄粗錯。",
+  "modal_proauth_copybutton": "點選從而複製授權網址",
+  "modal_proauth_copynotice": "授權網址已複製！",
+  "modal_proauth_maualinput": "網站的授權碼",
+  "modal_proauth_maualinput_desc": "請輸入授權流程最後一步的授權碼，然後點選確認。",
+  "modal_proauth_maualinput_notice": "正在連線，請稍候......",
+  "modal_proauth_maualinput_conn_fail": "連線失敗",
+
+  "settings_googledrive": "Google Drive (PRO) (beta)",
+  "settings_chooseservice_googledrive": "Google Drive (PRO) (beta)",
+  "settings_googledrive_disclaimer1": "宣告：本外掛不是 Google 的官方產品。只是用到了它的公開 API。",
+  "settings_googledrive_disclaimer2": "宣告：您所輸入的資訊儲存於本地。其它有害的或者出錯的外掛，是有可能讀取到這些資訊的。如果您發現任何不符合預期的 Google Drive 訪問，請立刻在以下網站操作斷開連線： https://myaccount.google.com/permissions 。",
+  "settings_googledrive_pro_desc": "<p><strong>！！這是 PRO（付費）功能! 您需要線上賬號來使用此功能！！</strong>（<a href=\"#settings-pro\">向下滑</a>可以看到 PRO 賬號的更多資訊。）</p>",
+  "settings_googledrive_notshowuphint": "Google Drive 設定不可用",
+  "settings_googledrive_notshowuphint_desc": "Google Drive 設定不可用，因為您沒有在 Remotely Save 賬號裡開啟這個 PRO 功能。",
+  "settings_googledrive_notshowuphint_view_pro": "檢視 PRO 相關設定",
+  "settings_googledrive_folder": "我們會在 Google Drive 建立此資料夾並同步內容進去： {{remoteBaseDir}} 。請不要手動在網站上建立。",
+  "settings_googledrive_revoke": "撤回鑑權",
+  "settings_googledrive_revoke_desc": "您現在已連線。如果想取消連線，請點選此按鈕。",
+  "settings_googledrive_revoke_button": "撤回鑑權",
+  "settings_googledrive_auth": "鑑權",
+  "settings_googledrive_auth_desc": "鑑權.",
+  "settings_googledrive_auth_button": "鑑權",
+  "settings_googledrive_connect_succ": "很好！我們可連線上 Google Drive！",
+  "settings_googledrive_connect_fail": "我們未能連線上 Google Drive。",
+
+  "settings_box": "Box (PRO) (beta)",
+  "settings_chooseservice_box": "Box (PRO) (beta)",
+  "settings_box_disclaimer1": "宣告：本外掛不是 Box 的官方產品。只是用到了它的公開 API。",
+  "settings_box_disclaimer2": "宣告：您所輸入的資訊儲存於本地。其它有害的或者出錯的外掛，是有可能讀取到這些資訊的。如果您發現任何不符合預期的 Box 訪問，請立刻在以下網站操作斷開連線： https://app.box.com/account/security 。",
+  "settings_box_pro_desc": "<p><strong>！！這是 PRO（付費）功能! 您需要線上賬號來使用此功能！！</strong>（<a href=\"#settings-pro\">向下滑</a>可以看到 PRO 賬號的更多資訊。）</p>",
+  "settings_box_notshowuphint": "Box 設定不可用",
+  "settings_box_notshowuphint_desc": "Box 設定不可用，因為您沒有在 Remotely Save 賬號裡開啟這個 PRO 功能。",
+  "settings_box_notshowuphint_view_pro": "檢視 PRO 相關設定",
+  "settings_box_folder": "我們會在 Box 建立此資料夾並同步內容進去： {{remoteBaseDir}} 。請不要手動在網站上建立。",
+  "settings_box_revoke": "撤回鑑權",
+  "settings_box_revoke_desc": "您現在已連線。如果想取消連線，請點選此按鈕。",
+  "settings_box_revoke_button": "撤回鑑權",
+  "settings_box_auth": "鑑權",
+  "settings_box_auth_desc": "鑑權.",
+  "settings_box_auth_button": "鑑權",
+  "settings_box_connect_succ": "很好！我們可連線上 Box！",
+  "settings_box_connect_fail": "我們未能連線上 Box。",
+
+  "settings_pcloud": "pCloud (PRO) (beta)",
+  "settings_chooseservice_pcloud": "pCloud (PRO) (beta)",
+  "settings_pcloud_disclaimer1": "宣告：本外掛不是 pCloud 的官方產品。只是用到了它的公開 API。",
+  "settings_pcloud_disclaimer2": "宣告：您所輸入的資訊儲存於本地。其它有害的或者出錯的外掛，是有可能讀取到這些資訊的。如果您發現任何不符合預期的 pCloud 訪問，請立刻在以下網站操作斷開連線： https://my.pcloud.com/#page=settings&settings=tab-apps 。",
+  "settings_pcloud_pro_desc": "<p><strong>！！這是 PRO（付費）功能! 您需要線上賬號來使用此功能！！</strong>（<a href=\"#settings-pro\">向下滑</a>可以看到 PRO 賬號的更多資訊。）</p>",
+  "settings_pcloud_notshowuphint": "pCloud 設定不可用",
+  "settings_pcloud_notshowuphint_desc": "pCloud 設定不可用，因為您沒有在 Remotely Save 賬號裡開啟這個 PRO 功能。",
+  "settings_pcloud_notshowuphint_view_pro": "檢視 PRO 相關設定",
+  "settings_pcloud_folder": "我們會在 pCloud 建立此資料夾並同步內容進去： {{remoteBaseDir}} 。請不要手動在網站上建立。",
+  "settings_pcloud_revoke": "撤回鑑權",
+  "settings_pcloud_revoke_desc": "您現在已連線。如果想取消連線，請點選此按鈕。",
+  "settings_pcloud_revoke_button": "撤回鑑權",
+  "settings_pcloud_auth": "鑑權",
+  "settings_pcloud_auth_desc": "鑑權.",
+  "settings_pcloud_auth_button": "鑑權",
+  "settings_pcloud_emptyfile": "空檔案",
+  "settings_pcloud_emptyfile_desc": "pCloud API 不支援上傳空檔案，怎麼處理？",
+  "settings_pcloud_emptyfile_skip": "跳過",
+  "settings_pcloud_emptyfile_error": "提示錯誤",
+  "settings_pcloud_connect_succ": "很好！我們可連線上 pCloud！",
+  "settings_pcloud_connect_fail": "我們未能連線上 pCloud。",
+
+  "settings_yandexdisk": "Yandex Disk (PRO) (beta)",
+  "settings_chooseservice_yandexdisk": "Yandex Disk (PRO) (beta)",
+  "settings_yandexdisk_disclaimer1": "宣告：本外掛不是 Yandex Disk 的官方產品。只是用到了它的公開 API。",
+  "settings_yandexdisk_disclaimer2": "宣告：您所輸入的資訊儲存於本地。其它有害的或者出錯的外掛，是有可能讀取到這些資訊的。如果您發現任何不符合預期的 Yandex Disk 訪問，請立刻在以下網站操作斷開連線： https://id.yandex.com/profile/devices 。",
+  "settings_yandexdisk_pro_desc": "<p><strong>！！這是 PRO（付費）功能! 您需要線上賬號來使用此功能！！</strong>（<a href=\"#settings-pro\">向下滑</a>可以看到 PRO 賬號的更多資訊。）</p>",
+  "settings_yandexdisk_notshowuphint": "Yandex Disk 設定不可用",
+  "settings_yandexdisk_notshowuphint_desc": "Yandex Disk 設定不可用，因為您沒有在 Remotely Save 賬號裡開啟這個 PRO 功能。",
+  "settings_yandexdisk_notshowuphint_view_pro": "檢視 PRO 相關設定",
+  "settings_yandexdisk_folder": "我們會在 Yandex Disk 建立此資料夾並同步內容進去： {{remoteBaseDir}} 。請不要手動在網站上建立。",
+  "settings_yandexdisk_revoke": "撤回鑑權",
+  "settings_yandexdisk_revoke_desc": "您現在已連線。如果想取消連線，請點選此按鈕。",
+  "settings_yandexdisk_revoke_button": "撤回鑑權",
+  "settings_yandexdisk_auth": "鑑權",
+  "settings_yandexdisk_auth_desc": "鑑權.",
+  "settings_yandexdisk_auth_button": "鑑權",
+  "settings_yandexdisk_connect_succ": "很好！我們可連線上 Yandex Disk！",
+  "settings_yandexdisk_connect_fail": "我們未能連線上 Yandex Disk。",
+
+  "settings_koofr": "Koofr (PRO) (beta)",
+  "settings_chooseservice_koofr": "Koofr (PRO) (beta)",
+  "settings_koofr_disclaimer1": "宣告：本外掛不是 Koofr 的官方產品。只是用到了它的公開 API。",
+  "settings_koofr_disclaimer2": "宣告：您所輸入的資訊儲存於本地。其它有害的或者出錯的外掛，是有可能讀取到這些資訊的。如果您發現任何不符合預期的 Koofr 訪問，請立刻在以下網站操作斷開連線： https://app.koofr.net/app/admin/preferences/security 。",
+  "settings_koofr_pro_desc": "<p><strong>！！這是 PRO（付費）功能! 您需要線上賬號來使用此功能！！</strong>（<a href=\"#settings-pro\">向下滑</a>可以看到 PRO 賬號的更多資訊。）</p>",
+  "settings_koofr_notshowuphint": "Koofr 設定不可用",
+  "settings_koofr_notshowuphint_desc": "Koofr 設定不可用，因為您沒有在 Remotely Save 賬號裡開啟這個 PRO 功能。",
+  "settings_koofr_notshowuphint_view_pro": "檢視 PRO 相關設定",
+  "settings_koofr_folder": "我們會在 Koofr 建立此資料夾並同步內容進去： {{remoteBaseDir}} 。請不要手動在網站上建立。",
+  "settings_koofr_revoke": "撤回鑑權",
+  "settings_koofr_revoke_desc": "您現在已連線。如果想取消連線，請點選此按鈕。",
+  "settings_koofr_revoke_button": "撤回鑑權",
+  "settings_koofr_auth": "鑑權",
+  "settings_koofr_auth_desc": "鑑權.",
+  "settings_koofr_auth_button": "鑑權",
+  "settings_koofr_connect_succ": "很好！我們可連線上 Koofr！",
+  "settings_koofr_connect_fail": "我們未能連線上 Koofr。",
+
+  "settings_export_googledrive_button": "匯出 Google Drive 部分",
+  "settings_export_box_button": "匯出 Box 部分",
+  "settings_export_pcloud_button": "匯出 pCloud 部分",
+  "settings_export_yandexdisk_button": "匯出 Yandex Disk 部分",
+  "settings_export_koofr_button": "匯出 Koofr 部分",
+
+  "settings_pro": "賬號（PRO 付費功能）",
+  "settings_pro_tutorial": "<p>使用 Remotely Save 的<stong>基本</strong>功能是<strong>免費的</strong>，而且<strong>不</strong>需要註冊對應賬號。</p><p>但是，您<strong>需要</strong>註冊賬號和對<strong>PRO</strong>功能<strong>付費</strong>使用，如智慧處理衝突功能。</p><p>第一步：點選按鈕從而註冊和登入網站：<a href=\"https://remotelysave.com\">https://remotelysave.com</a>。注意：這和 Obsidian 官方賬號無關，是不同的賬號。</p><p>第二部：點選“連線”按鈕，從而連線本裝置和線上賬號。",
+  "settings_pro_features": "功能",
+  "settings_pro_features_desc": "您開通了以下功能：<br/>{{{features}}}",
+  "settings_pro_features_refresh_button": "再次檢查",
+  "settings_pro_features_refresh_fetch": "正在獲取資料......",
+  "settings_pro_features_refresh_succ": "已重新整理！",
+  "settings_pro_revoke": "斷開連線",
+  "settings_pro_revoke_desc": "您已連線上賬號 {{email}}。如果要取消連線，請點選此按鈕。",
+  "settings_pro_revoke_button": "斷開連線",
+  "settings_pro_intro": "Remotely Save 賬號",
+  "settings_pro_intro_desc": "點選此按鈕，從而到網站上註冊和登入。",
+  "settings_pro_intro_button": "註冊或登入",
+  "settings_pro_auth": "連線",
+  "settings_pro_auth_desc": "在網站上註冊和登入後，您需要“連線”本裝置和線上賬號。請點選按鈕開始連線。",
+  "settings_pro_auth_button": "連線"
+}
@@ -0,0 +1,47 @@
+import type { Entity } from "../../src/baseTypes";
+import type { InternalDBs } from "../../src/localdb";
+
+export const upsertFileContentHistoryByVaultAndProfile = async (
+  db: InternalDBs,
+  vaultRandomID: string,
+  profileID: string,
+  prevSync: Entity,
+  prevContent: ArrayBuffer
+) => {
+  await db.fileContentHistoryTbl.setItem(
+    `${vaultRandomID}\t${profileID}\t${prevSync.key}`,
+    prevContent
+  );
+};
+
+export const getFileContentHistoryByVaultAndProfile = async (
+  db: InternalDBs,
+  vaultRandomID: string,
+  profileID: string,
+  prevSync: Entity
+) => {
+  return (await db.fileContentHistoryTbl.getItem(
+    `${vaultRandomID}\t${profileID}\t${prevSync.key}`
+  )) as ArrayBuffer | null | undefined;
+};
+
+export const clearFileContentHistoryByVaultAndProfile = async (
+  db: InternalDBs,
+  vaultRandomID: string,
+  profileID: string,
+  key: string
+) => {
+  await db.fileContentHistoryTbl.removeItem(
+    `${vaultRandomID}\t${profileID}\t${key}`
+  );
+};
+
+export const clearAllFileContentHistoryByVault = async (
+  db: InternalDBs,
+  vaultRandomID: string
+) => {
+  const keys = (await db.fileContentHistoryTbl.keys()).filter((x) =>
+    x.startsWith(`${vaultRandomID}\t`)
+  );
+  await db.fileContentHistoryTbl.removeItems(keys);
+};
@@ -0,0 +1,26 @@
+import { base64url } from "rfc4648";
+
+/**
+ * https://datatracker.ietf.org/doc/html/rfc7636
+ * dBjftJeZ4CVP-mB92K27uhbUJU1p1r_wW1gFWFOEjXk
+ * => E9Melhoa2OwvFrEMTJguCHaoeK1t8URWbuGJSstw-cM
+ * @param x
+ * @returns BASE64URL-ENCODE(SHA256(ASCII(code_verifier)))
+ */
+export async function codeVerifier2CodeChallenge(x: string) {
+  if (x === undefined || x === "") {
+    return "";
+  }
+  try {
+    return base64url.stringify(
+      new Uint8Array(
+        await crypto.subtle.digest("SHA-256", new TextEncoder().encode(x))
+      ),
+      {
+        pad: false,
+      }
+    );
+  } catch (e) {
+    return "";
+  }
+}
@@ -0,0 +1,367 @@
+import cloneDeep from "lodash/cloneDeep";
+import { type App, Modal, Notice, Setting } from "obsidian";
+import { getClient } from "../../src/fsGetter";
+import type { TransItemType } from "../../src/i18n";
+import type RemotelySavePlugin from "../../src/main";
+import { stringToFragment } from "../../src/misc";
+import { ChangeRemoteBaseDirModal } from "../../src/settings";
+import {
+  DEFAULT_BOX_CONFIG,
+  generateAuthUrl,
+  sendRefreshTokenReq,
+} from "./fsBox";
+
+class BoxAuthModal extends Modal {
+  readonly plugin: RemotelySavePlugin;
+  readonly authDiv: HTMLDivElement;
+  readonly revokeAuthDiv: HTMLDivElement;
+  readonly revokeAuthSetting: Setting;
+  readonly t: (x: TransItemType, vars?: any) => string;
+  constructor(
+    app: App,
+    plugin: RemotelySavePlugin,
+    authDiv: HTMLDivElement,
+    revokeAuthDiv: HTMLDivElement,
+    revokeAuthSetting: Setting,
+    t: (x: TransItemType, vars?: any) => string
+  ) {
+    super(app);
+    this.plugin = plugin;
+    this.authDiv = authDiv;
+    this.revokeAuthDiv = revokeAuthDiv;
+    this.revokeAuthSetting = revokeAuthSetting;
+    this.t = t;
+  }
+
+  async onOpen() {
+    const { contentEl } = this;
+    const t = this.t;
+
+    const authUrl = generateAuthUrl();
+    const div2 = contentEl.createDiv();
+    div2.createDiv({
+      text: stringToFragment(t("modal_boxauth_tutorial")),
+    });
+    div2.createEl(
+      "button",
+      {
+        text: t("modal_boxauth_copybutton"),
+      },
+      (el) => {
+        el.onclick = async () => {
+          await navigator.clipboard.writeText(authUrl);
+          new Notice(t("modal_boxauth_copynotice"));
+        };
+      }
+    );
+
+    contentEl.createEl("p").createEl("a", {
+      href: authUrl,
+      text: authUrl,
+    });
+
+    // let refreshToken = "";
+    // new Setting(contentEl)
+    //   .setName(t("modal_box_maualinput"))
+    //   .setDesc(t("modal_box_maualinput_desc"))
+    //   .addText((text) =>
+    //     text
+    //       .setPlaceholder("")
+    //       .setValue("")
+    //       .onChange((val) => {
+    //         refreshToken = val.trim();
+    //       })
+    //   )
+    //   .addButton(async (button) => {
+    //     button.setButtonText(t("submit"));
+    //     button.onClick(async () => {
+    //       new Notice(t("modal_box_maualinput_notice"));
+
+    //       try {
+    //         if (this.plugin.settings.box === undefined) {
+    //           this.plugin.settings.box = cloneDeep(
+    //             DEFAULT_BOX_CONFIG
+    //           );
+    //         }
+    //         this.plugin.settings.box.refreshToken = refreshToken;
+    //         this.plugin.settings.box.accessToken = "access";
+    //         this.plugin.settings.box.accessTokenExpiresAtTimeMs = 1;
+    //         this.plugin.settings.box.accessTokenExpiresInMs = 1;
+
+    //         // TODO: abstraction leaking now, how to fix?
+    //         const k = await sendRefreshTokenReq(refreshToken);
+    //         const ts = Date.now();
+    //         this.plugin.settings.box.accessToken = k.access_token;
+    //         this.plugin.settings.box.accessTokenExpiresInMs =
+    //           k.expires_in * 1000;
+    //         this.plugin.settings.box.accessTokenExpiresAtTimeMs =
+    //           ts + k.expires_in * 1000 - 60 * 2 * 1000;
+    //         await this.plugin.saveSettings();
+
+    //         // try to remove data in clipboard
+    //         await navigator.clipboard.writeText("");
+
+    //         new Notice(t("modal_box_maualinput_succ_notice"));
+    //       } catch (e) {
+    //         console.error(e);
+    //         new Notice(t("modal_box_maualinput_fail_notice"));
+    //       } finally {
+    //         this.authDiv.toggleClass(
+    //           "box-auth-button-hide",
+    //           this.plugin.settings.box.refreshToken !== ""
+    //         );
+    //         this.revokeAuthDiv.toggleClass(
+    //           "box-revoke-auth-button-hide",
+    //           this.plugin.settings.box.refreshToken === ""
+    //         );
+    //         this.close();
+    //       }
+    //     });
+    //   });
+  }
+
+  onClose() {
+    const { contentEl } = this;
+    contentEl.empty();
+  }
+}
+
+class BoxRevokeAuthModal extends Modal {
+  readonly plugin: RemotelySavePlugin;
+  readonly authDiv: HTMLDivElement;
+  readonly revokeAuthDiv: HTMLDivElement;
+  readonly t: (x: TransItemType, vars?: any) => string;
+  constructor(
+    app: App,
+    plugin: RemotelySavePlugin,
+    authDiv: HTMLDivElement,
+    revokeAuthDiv: HTMLDivElement,
+    t: (x: TransItemType, vars?: any) => string
+  ) {
+    super(app);
+    this.plugin = plugin;
+    this.authDiv = authDiv;
+    this.revokeAuthDiv = revokeAuthDiv;
+    this.t = t;
+  }
+
+  async onOpen() {
+    const t = this.t;
+    const { contentEl } = this;
+
+    contentEl.createEl("p", {
+      text: t("modal_boxrevokeauth_step1"),
+    });
+    const consentUrl = "https://app.box.com/account/security";
+    contentEl.createEl("p").createEl("a", {
+      href: consentUrl,
+      text: consentUrl,
+    });
+
+    contentEl.createEl("p", {
+      text: t("modal_boxrevokeauth_step2"),
+    });
+
+    new Setting(contentEl)
+      .setName(t("modal_boxrevokeauth_clean"))
+      .setDesc(t("modal_boxrevokeauth_clean_desc"))
+      .addButton(async (button) => {
+        button.setButtonText(t("modal_boxrevokeauth_clean_button"));
+        button.onClick(async () => {
+          try {
+            this.plugin.settings.box = cloneDeep(DEFAULT_BOX_CONFIG);
+
+            await this.plugin.saveSettings();
+            this.authDiv.toggleClass(
+              "box-auth-button-hide",
+              this.plugin.settings.box.refreshToken !== ""
+            );
+            this.revokeAuthDiv.toggleClass(
+              "box-revoke-auth-button-hide",
+              this.plugin.settings.box.refreshToken === ""
+            );
+            new Notice(t("modal_boxrevokeauth_clean_notice"));
+            this.close();
+          } catch (err) {
+            console.error(err);
+            new Notice(t("modal_boxrevokeauth_clean_fail"));
+          }
+        });
+      });
+  }
+
+  onClose() {
+    const { contentEl } = this;
+    contentEl.empty();
+  }
+}
+
+export const generateBoxSettingsPart = (
+  containerEl: HTMLElement,
+  t: (x: TransItemType, vars?: any) => string,
+  app: App,
+  plugin: RemotelySavePlugin,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+) => {
+  const boxDiv = containerEl.createEl("div", {
+    cls: "box-hide",
+  });
+  boxDiv.toggleClass("box-hide", plugin.settings.serviceType !== "box");
+  boxDiv.createEl("h2", { text: t("settings_box") });
+
+  const boxLongDescDiv = boxDiv.createEl("div", {
+    cls: "settings-long-desc",
+  });
+  for (const c of [
+    t("settings_box_disclaimer1"),
+    t("settings_box_disclaimer2"),
+  ]) {
+    boxLongDescDiv.createEl("p", {
+      text: c,
+      cls: "box-disclaimer",
+    });
+  }
+
+  boxLongDescDiv.createEl("p", {
+    text: t("settings_box_folder", {
+      remoteBaseDir: plugin.settings.box.remoteBaseDir || app.vault.getName(),
+    }),
+  });
+
+  boxLongDescDiv.createDiv({
+    text: stringToFragment(t("settings_box_pro_desc")),
+    cls: "box-disclaimer",
+  });
+
+  const boxNotShowUpHintSetting = new Setting(boxDiv)
+    .setName(t("settings_box_notshowuphint"))
+    .setDesc(t("settings_box_notshowuphint_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_box_notshowuphint_view_pro"));
+      button.onClick(async () => {
+        window.location.href = "#settings-pro";
+      });
+    });
+
+  const boxAllowedToUsedDiv = boxDiv.createDiv();
+  // if pro enabled, show up; otherwise hide.
+  const allowBox =
+    plugin.settings.pro?.enabledProFeatures.filter(
+      (x) => x.featureName === "feature-box"
+    ).length === 1;
+  console.debug(`allow to show up box settings? ${allowBox}`);
+  if (allowBox) {
+    boxAllowedToUsedDiv.removeClass("box-allow-to-use-hide");
+    boxNotShowUpHintSetting.settingEl.addClass("box-allow-to-use-hide");
+  } else {
+    boxAllowedToUsedDiv.addClass("box-allow-to-use-hide");
+    boxNotShowUpHintSetting.settingEl.removeClass("box-allow-to-use-hide");
+  }
+
+  const boxSelectAuthDiv = boxAllowedToUsedDiv.createDiv();
+  const boxAuthDiv = boxSelectAuthDiv.createDiv({
+    cls: "box-auth-button-hide settings-auth-related",
+  });
+  const boxRevokeAuthDiv = boxSelectAuthDiv.createDiv({
+    cls: "box-revoke-auth-button-hide settings-auth-related",
+  });
+
+  const boxRevokeAuthSetting = new Setting(boxRevokeAuthDiv)
+    .setName(t("settings_box_revoke"))
+    .setDesc(t("settings_box_revoke_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_box_revoke_button"));
+      button.onClick(async () => {
+        new BoxRevokeAuthModal(
+          app,
+          plugin,
+          boxAuthDiv,
+          boxRevokeAuthDiv,
+          t
+        ).open();
+      });
+    });
+
+  new Setting(boxAuthDiv)
+    .setName(t("settings_box_auth"))
+    .setDesc(t("settings_box_auth_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_box_auth_button"));
+      button.onClick(async () => {
+        const modal = new BoxAuthModal(
+          app,
+          plugin,
+          boxAuthDiv,
+          boxRevokeAuthDiv,
+          boxRevokeAuthSetting,
+          t
+        );
+        plugin.oauth2Info.helperModal = modal;
+        plugin.oauth2Info.authDiv = boxAuthDiv;
+        plugin.oauth2Info.revokeDiv = boxRevokeAuthDiv;
+        plugin.oauth2Info.revokeAuthSetting = boxRevokeAuthSetting;
+        modal.open();
+      });
+    });
+
+  boxAuthDiv.toggleClass(
+    "box-auth-button-hide",
+    plugin.settings.box.refreshToken !== ""
+  );
+  boxRevokeAuthDiv.toggleClass(
+    "box-revoke-auth-button-hide",
+    plugin.settings.box.refreshToken === ""
+  );
+
+  let newboxRemoteBaseDir = plugin.settings.box.remoteBaseDir || "";
+  new Setting(boxAllowedToUsedDiv)
+    .setName(t("settings_remotebasedir"))
+    .setDesc(t("settings_remotebasedir_desc"))
+    .addText((text) =>
+      text
+        .setPlaceholder(app.vault.getName())
+        .setValue(newboxRemoteBaseDir)
+        .onChange((value) => {
+          newboxRemoteBaseDir = value.trim();
+        })
+    )
+    .addButton((button) => {
+      button.setButtonText(t("confirm"));
+      button.onClick(() => {
+        new ChangeRemoteBaseDirModal(
+          app,
+          plugin,
+          newboxRemoteBaseDir,
+          "box"
+        ).open();
+      });
+    });
+  new Setting(boxAllowedToUsedDiv)
+    .setName(t("settings_checkonnectivity"))
+    .setDesc(t("settings_checkonnectivity_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_checkonnectivity_button"));
+      button.onClick(async () => {
+        new Notice(t("settings_checkonnectivity_checking"));
+        const client = getClient(plugin.settings, app.vault.getName(), () =>
+          plugin.saveSettings()
+        );
+        const errors = { msg: "" };
+        const res = await client.checkConnect((err: any) => {
+          errors.msg = `${err}`;
+        });
+        if (res) {
+          new Notice(t("settings_box_connect_succ"));
+        } else {
+          new Notice(t("settings_box_connect_fail"));
+          new Notice(errors.msg);
+        }
+      });
+    });
+
+  return {
+    boxDiv: boxDiv,
+    boxAllowedToUsedDiv: boxAllowedToUsedDiv,
+    boxNotShowUpHintSetting: boxNotShowUpHintSetting,
+  };
+};
@@ -0,0 +1,377 @@
+import cloneDeep from "lodash/cloneDeep";
+import { type App, Modal, Notice, Setting } from "obsidian";
+import { getClient } from "../../src/fsGetter";
+import type { TransItemType } from "../../src/i18n";
+import type RemotelySavePlugin from "../../src/main";
+import { stringToFragment } from "../../src/misc";
+import { ChangeRemoteBaseDirModal } from "../../src/settings";
+import {
+  DEFAULT_GOOGLEDRIVE_CONFIG,
+  sendRefreshTokenReq,
+} from "./fsGoogleDrive";
+
+class GoogleDriveAuthModal extends Modal {
+  readonly plugin: RemotelySavePlugin;
+  readonly authDiv: HTMLDivElement;
+  readonly revokeAuthDiv: HTMLDivElement;
+  readonly revokeAuthSetting: Setting;
+  readonly t: (x: TransItemType, vars?: any) => string;
+  constructor(
+    app: App,
+    plugin: RemotelySavePlugin,
+    authDiv: HTMLDivElement,
+    revokeAuthDiv: HTMLDivElement,
+    revokeAuthSetting: Setting,
+    t: (x: TransItemType, vars?: any) => string
+  ) {
+    super(app);
+    this.plugin = plugin;
+    this.authDiv = authDiv;
+    this.revokeAuthDiv = revokeAuthDiv;
+    this.revokeAuthSetting = revokeAuthSetting;
+    this.t = t;
+  }
+
+  async onOpen() {
+    const { contentEl } = this;
+    const t = this.t;
+
+    const authUrl = "https://remotelysave.com/auth/googledrive/start";
+    const div2 = contentEl.createDiv();
+    div2.createDiv({
+      text: stringToFragment(t("modal_googledriveauth_tutorial")),
+    });
+    div2.createEl(
+      "button",
+      {
+        text: t("modal_googledriveauth_copybutton"),
+      },
+      (el) => {
+        el.onclick = async () => {
+          await navigator.clipboard.writeText(authUrl);
+          new Notice(t("modal_googledriveauth_copynotice"));
+        };
+      }
+    );
+
+    contentEl.createEl("p").createEl("a", {
+      href: authUrl,
+      text: authUrl,
+    });
+
+    let refreshToken = "";
+    new Setting(contentEl)
+      .setName(t("modal_googledrivce_maualinput"))
+      .setDesc(t("modal_googledrivce_maualinput_desc"))
+      .addText((text) =>
+        text
+          .setPlaceholder("")
+          .setValue("")
+          .onChange((val) => {
+            refreshToken = val.trim();
+          })
+      )
+      .addButton(async (button) => {
+        button.setButtonText(t("submit"));
+        button.onClick(async () => {
+          new Notice(t("modal_googledrive_maualinput_notice"));
+
+          try {
+            if (this.plugin.settings.googledrive === undefined) {
+              this.plugin.settings.googledrive = cloneDeep(
+                DEFAULT_GOOGLEDRIVE_CONFIG
+              );
+            }
+            this.plugin.settings.googledrive.refreshToken = refreshToken;
+            this.plugin.settings.googledrive.accessToken = "access";
+            this.plugin.settings.googledrive.accessTokenExpiresAtTimeMs = 1;
+            this.plugin.settings.googledrive.accessTokenExpiresInMs = 1;
+
+            // TODO: abstraction leaking now, how to fix?
+            const k = await sendRefreshTokenReq(refreshToken);
+            const ts = Date.now();
+            this.plugin.settings.googledrive.accessToken = k.access_token;
+            this.plugin.settings.googledrive.accessTokenExpiresInMs =
+              k.expires_in * 1000;
+            this.plugin.settings.googledrive.accessTokenExpiresAtTimeMs =
+              ts + k.expires_in * 1000 - 60 * 2 * 1000;
+            await this.plugin.saveSettings();
+
+            // try to remove data in clipboard
+            await navigator.clipboard.writeText("");
+
+            new Notice(t("modal_googledrive_maualinput_succ_notice"));
+          } catch (e) {
+            console.error(e);
+            new Notice(t("modal_googledrive_maualinput_fail_notice"));
+          } finally {
+            this.authDiv.toggleClass(
+              "googledrive-auth-button-hide",
+              this.plugin.settings.googledrive.refreshToken !== ""
+            );
+            this.revokeAuthDiv.toggleClass(
+              "googledrive-revoke-auth-button-hide",
+              this.plugin.settings.googledrive.refreshToken === ""
+            );
+            this.close();
+          }
+        });
+      });
+  }
+
+  onClose() {
+    const { contentEl } = this;
+    contentEl.empty();
+  }
+}
+
+class GoogleDriveRevokeAuthModal extends Modal {
+  readonly plugin: RemotelySavePlugin;
+  readonly authDiv: HTMLDivElement;
+  readonly revokeAuthDiv: HTMLDivElement;
+  readonly t: (x: TransItemType, vars?: any) => string;
+  constructor(
+    app: App,
+    plugin: RemotelySavePlugin,
+    authDiv: HTMLDivElement,
+    revokeAuthDiv: HTMLDivElement,
+    t: (x: TransItemType, vars?: any) => string
+  ) {
+    super(app);
+    this.plugin = plugin;
+    this.authDiv = authDiv;
+    this.revokeAuthDiv = revokeAuthDiv;
+    this.t = t;
+  }
+
+  async onOpen() {
+    const t = this.t;
+    const { contentEl } = this;
+
+    contentEl.createEl("p", {
+      text: t("modal_googledriverevokeauth_step1"),
+    });
+    const consentUrl = "https://myaccount.google.com/permissions";
+    contentEl.createEl("p").createEl("a", {
+      href: consentUrl,
+      text: consentUrl,
+    });
+
+    contentEl.createEl("p", {
+      text: t("modal_googledriverevokeauth_step2"),
+    });
+
+    new Setting(contentEl)
+      .setName(t("modal_googledriverevokeauth_clean"))
+      .setDesc(t("modal_googledriverevokeauth_clean_desc"))
+      .addButton(async (button) => {
+        button.setButtonText(t("modal_googledriverevokeauth_clean_button"));
+        button.onClick(async () => {
+          try {
+            this.plugin.settings.googledrive = cloneDeep(
+              DEFAULT_GOOGLEDRIVE_CONFIG
+            );
+
+            await this.plugin.saveSettings();
+            this.authDiv.toggleClass(
+              "googledrive-auth-button-hide",
+              this.plugin.settings.googledrive.refreshToken !== ""
+            );
+            this.revokeAuthDiv.toggleClass(
+              "googledrive-revoke-auth-button-hide",
+              this.plugin.settings.googledrive.refreshToken === ""
+            );
+            new Notice(t("modal_googledriverevokeauth_clean_notice"));
+            this.close();
+          } catch (err) {
+            console.error(err);
+            new Notice(t("modal_googledriverevokeauth_clean_fail"));
+          }
+        });
+      });
+  }
+
+  onClose() {
+    const { contentEl } = this;
+    contentEl.empty();
+  }
+}
+
+export const generateGoogleDriveSettingsPart = (
+  containerEl: HTMLElement,
+  t: (x: TransItemType, vars?: any) => string,
+  app: App,
+  plugin: RemotelySavePlugin,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+) => {
+  const googleDriveDiv = containerEl.createEl("div", {
+    cls: "googledrive-hide",
+  });
+  googleDriveDiv.toggleClass(
+    "googledrive-hide",
+    plugin.settings.serviceType !== "googledrive"
+  );
+  googleDriveDiv.createEl("h2", { text: t("settings_googledrive") });
+
+  const googleDriveLongDescDiv = googleDriveDiv.createEl("div", {
+    cls: "settings-long-desc",
+  });
+  for (const c of [
+    t("settings_googledrive_disclaimer1"),
+    t("settings_googledrive_disclaimer2"),
+  ]) {
+    googleDriveLongDescDiv.createEl("p", {
+      text: c,
+      cls: "googledrive-disclaimer",
+    });
+  }
+
+  googleDriveLongDescDiv.createEl("p", {
+    text: t("settings_googledrive_folder", {
+      remoteBaseDir:
+        plugin.settings.googledrive.remoteBaseDir || app.vault.getName(),
+    }),
+  });
+
+  googleDriveLongDescDiv.createDiv({
+    text: stringToFragment(t("settings_googledrive_pro_desc")),
+    cls: "googledrive-disclaimer",
+  });
+
+  const googleDriveNotShowUpHintSetting = new Setting(googleDriveDiv)
+    .setName(t("settings_googledrive_notshowuphint"))
+    .setDesc(t("settings_googledrive_notshowuphint_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_googledrive_notshowuphint_view_pro"));
+      button.onClick(async () => {
+        window.location.href = "#settings-pro";
+      });
+    });
+
+  const googleDriveAllowedToUsedDiv = googleDriveDiv.createDiv();
+  // if pro enabled, show up; otherwise hide.
+  const allowGoogleDrive =
+    plugin.settings.pro?.enabledProFeatures.filter(
+      (x) => x.featureName === "feature-google_drive"
+    ).length === 1;
+  console.debug(`allow to show up google drive settings? ${allowGoogleDrive}`);
+  if (allowGoogleDrive) {
+    googleDriveAllowedToUsedDiv.removeClass("googledrive-allow-to-use-hide");
+    googleDriveNotShowUpHintSetting.settingEl.addClass(
+      "googledrive-allow-to-use-hide"
+    );
+  } else {
+    googleDriveAllowedToUsedDiv.addClass("googledrive-allow-to-use-hide");
+    googleDriveNotShowUpHintSetting.settingEl.removeClass(
+      "googledrive-allow-to-use-hide"
+    );
+  }
+
+  const googleDriveSelectAuthDiv = googleDriveAllowedToUsedDiv.createDiv();
+  const googleDriveAuthDiv = googleDriveSelectAuthDiv.createDiv({
+    cls: "googledrive-auth-button-hide settings-auth-related",
+  });
+  const googleDriveRevokeAuthDiv = googleDriveSelectAuthDiv.createDiv({
+    cls: "googledrive-revoke-auth-button-hide settings-auth-related",
+  });
+
+  const googleDriveRevokeAuthSetting = new Setting(googleDriveRevokeAuthDiv)
+    .setName(t("settings_googledrive_revoke"))
+    .setDesc(t("settings_googledrive_revoke_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_googledrive_revoke_button"));
+      button.onClick(async () => {
+        new GoogleDriveRevokeAuthModal(
+          app,
+          plugin,
+          googleDriveAuthDiv,
+          googleDriveRevokeAuthDiv,
+          t
+        ).open();
+      });
+    });
+
+  new Setting(googleDriveAuthDiv)
+    .setName(t("settings_googledrive_auth"))
+    .setDesc(t("settings_googledrive_auth_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_googledrive_auth_button"));
+      button.onClick(async () => {
+        const modal = new GoogleDriveAuthModal(
+          app,
+          plugin,
+          googleDriveAuthDiv,
+          googleDriveRevokeAuthDiv,
+          googleDriveRevokeAuthSetting,
+          t
+        );
+        plugin.oauth2Info.helperModal = modal;
+        plugin.oauth2Info.authDiv = googleDriveAuthDiv;
+        plugin.oauth2Info.revokeDiv = googleDriveRevokeAuthDiv;
+        plugin.oauth2Info.revokeAuthSetting = googleDriveRevokeAuthSetting;
+        modal.open();
+      });
+    });
+
+  googleDriveAuthDiv.toggleClass(
+    "googledrive-auth-button-hide",
+    plugin.settings.googledrive.refreshToken !== ""
+  );
+  googleDriveRevokeAuthDiv.toggleClass(
+    "googledrive-revoke-auth-button-hide",
+    plugin.settings.googledrive.refreshToken === ""
+  );
+
+  let newgoogleDriveRemoteBaseDir =
+    plugin.settings.googledrive.remoteBaseDir || "";
+  new Setting(googleDriveAllowedToUsedDiv)
+    .setName(t("settings_remotebasedir"))
+    .setDesc(t("settings_remotebasedir_desc"))
+    .addText((text) =>
+      text
+        .setPlaceholder(app.vault.getName())
+        .setValue(newgoogleDriveRemoteBaseDir)
+        .onChange((value) => {
+          newgoogleDriveRemoteBaseDir = value.trim();
+        })
+    )
+    .addButton((button) => {
+      button.setButtonText(t("confirm"));
+      button.onClick(() => {
+        new ChangeRemoteBaseDirModal(
+          app,
+          plugin,
+          newgoogleDriveRemoteBaseDir,
+          "googledrive"
+        ).open();
+      });
+    });
+  new Setting(googleDriveAllowedToUsedDiv)
+    .setName(t("settings_checkonnectivity"))
+    .setDesc(t("settings_checkonnectivity_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_checkonnectivity_button"));
+      button.onClick(async () => {
+        new Notice(t("settings_checkonnectivity_checking"));
+        const client = getClient(plugin.settings, app.vault.getName(), () =>
+          plugin.saveSettings()
+        );
+        const errors = { msg: "" };
+        const res = await client.checkConnect((err: any) => {
+          errors.msg = `${err}`;
+        });
+        if (res) {
+          new Notice(t("settings_googledrive_connect_succ"));
+        } else {
+          new Notice(t("settings_googledrive_connect_fail"));
+          new Notice(errors.msg);
+        }
+      });
+    });
+
+  return {
+    googleDriveDiv: googleDriveDiv,
+    googleDriveAllowedToUsedDiv: googleDriveAllowedToUsedDiv,
+    googleDriveNotShowUpHintSetting: googleDriveNotShowUpHintSetting,
+  };
+};
@@ -0,0 +1,367 @@
+import cloneDeep from "lodash/cloneDeep";
+import { type App, Modal, Notice, Setting } from "obsidian";
+import { getClient } from "../../src/fsGetter";
+import type { TransItemType } from "../../src/i18n";
+import type RemotelySavePlugin from "../../src/main";
+import { stringToFragment } from "../../src/misc";
+import { ChangeRemoteBaseDirModal } from "../../src/settings";
+import {
+  DEFAULT_KOOFR_CONFIG,
+  generateAuthUrl,
+  sendRefreshTokenReq,
+} from "./fsKoofr";
+
+class KoofrAuthModal extends Modal {
+  readonly plugin: RemotelySavePlugin;
+  readonly authDiv: HTMLDivElement;
+  readonly revokeAuthDiv: HTMLDivElement;
+  readonly revokeAuthSetting: Setting;
+  readonly t: (x: TransItemType, vars?: any) => string;
+  constructor(
+    app: App,
+    plugin: RemotelySavePlugin,
+    authDiv: HTMLDivElement,
+    revokeAuthDiv: HTMLDivElement,
+    revokeAuthSetting: Setting,
+    t: (x: TransItemType, vars?: any) => string
+  ) {
+    super(app);
+    this.plugin = plugin;
+    this.authDiv = authDiv;
+    this.revokeAuthDiv = revokeAuthDiv;
+    this.revokeAuthSetting = revokeAuthSetting;
+    this.t = t;
+  }
+
+  async onOpen() {
+    const { contentEl } = this;
+    const t = this.t;
+
+    const authUrl = generateAuthUrl(this.plugin.settings.koofr.api, true);
+    const div2 = contentEl.createDiv();
+    div2.createDiv({
+      text: stringToFragment(t("modal_koofrauth_tutorial")),
+    });
+    div2.createEl(
+      "button",
+      {
+        text: t("modal_koofrauth_copybutton"),
+      },
+      (el) => {
+        el.onclick = async () => {
+          await navigator.clipboard.writeText(authUrl);
+          new Notice(t("modal_koofrauth_copynotice"));
+        };
+      }
+    );
+
+    contentEl.createEl("p").createEl("a", {
+      href: authUrl,
+      text: authUrl,
+    });
+
+    // let refreshToken = "";
+    // new Setting(contentEl)
+    //   .setName(t("modal_koofr_maualinput"))
+    //   .setDesc(t("modal_koofr_maualinput_desc"))
+    //   .addText((text) =>
+    //     text
+    //       .setPlaceholder("")
+    //       .setValue("")
+    //       .onChange((val) => {
+    //         refreshToken = val.trim();
+    //       })
+    //   )
+    //   .addButton(async (button) => {
+    //     button.setButtonText(t("submit"));
+    //     button.onClick(async () => {
+    //       new Notice(t("modal_koofr_maualinput_notice"));
+
+    //       try {
+    //         if (this.plugin.settings.koofr === undefined) {
+    //           this.plugin.settings.koofr = cloneDeep(
+    //             DEFAULT_KOOFR_CONFIG
+    //           );
+    //         }
+    //         this.plugin.settings.koofr.refreshToken = refreshToken;
+    //         this.plugin.settings.koofr.accessToken = "access";
+    //         this.plugin.settings.koofr.accessTokenExpiresAtTimeMs = 1;
+    //         this.plugin.settings.koofr.accessTokenExpiresInMs = 1;
+
+    //         // TODO: abstraction leaking now, how to fix?
+    //         const k = await sendRefreshTokenReq(refreshToken);
+    //         const ts = Date.now();
+    //         this.plugin.settings.koofr.accessToken = k.access_token;
+    //         this.plugin.settings.koofr.accessTokenExpiresInMs =
+    //           k.expires_in * 1000;
+    //         this.plugin.settings.koofr.accessTokenExpiresAtTimeMs =
+    //           ts + k.expires_in * 1000 - 60 * 2 * 1000;
+    //         await this.plugin.saveSettings();
+
+    //         // try to remove data in clipboard
+    //         await navigator.clipboard.writeText("");
+
+    //         new Notice(t("modal_koofr_maualinput_succ_notice"));
+    //       } catch (e) {
+    //         console.error(e);
+    //         new Notice(t("modal_koofr_maualinput_fail_notice"));
+    //       } finally {
+    //         this.authDiv.toggleClass(
+    //           "koofr-auth-button-hide",
+    //           this.plugin.settings.koofr.refreshToken !== ""
+    //         );
+    //         this.revokeAuthDiv.toggleClass(
+    //           "koofr-revoke-auth-button-hide",
+    //           this.plugin.settings.koofr.refreshToken === ""
+    //         );
+    //         this.close();
+    //       }
+    //     });
+    //   });
+  }
+
+  onClose() {
+    const { contentEl } = this;
+    contentEl.empty();
+  }
+}
+
+class KoofrRevokeAuthModal extends Modal {
+  readonly plugin: RemotelySavePlugin;
+  readonly authDiv: HTMLDivElement;
+  readonly revokeAuthDiv: HTMLDivElement;
+  readonly t: (x: TransItemType, vars?: any) => string;
+  constructor(
+    app: App,
+    plugin: RemotelySavePlugin,
+    authDiv: HTMLDivElement,
+    revokeAuthDiv: HTMLDivElement,
+    t: (x: TransItemType, vars?: any) => string
+  ) {
+    super(app);
+    this.plugin = plugin;
+    this.authDiv = authDiv;
+    this.revokeAuthDiv = revokeAuthDiv;
+    this.t = t;
+  }
+
+  async onOpen() {
+    const t = this.t;
+    const { contentEl } = this;
+
+    contentEl.createEl("p", {
+      text: t("modal_koofrrevokeauth_step1"),
+    });
+    const consentUrl = "https://app.koofr.net/app/admin/preferences/security";
+    contentEl.createEl("p").createEl("a", {
+      href: consentUrl,
+      text: consentUrl,
+    });
+
+    contentEl.createEl("p", {
+      text: t("modal_koofrrevokeauth_step2"),
+    });
+
+    new Setting(contentEl)
+      .setName(t("modal_koofrrevokeauth_clean"))
+      .setDesc(t("modal_koofrrevokeauth_clean_desc"))
+      .addButton(async (button) => {
+        button.setButtonText(t("modal_koofrrevokeauth_clean_button"));
+        button.onClick(async () => {
+          try {
+            this.plugin.settings.koofr = cloneDeep(DEFAULT_KOOFR_CONFIG);
+
+            await this.plugin.saveSettings();
+            this.authDiv.toggleClass(
+              "koofr-auth-button-hide",
+              this.plugin.settings.koofr.refreshToken !== ""
+            );
+            this.revokeAuthDiv.toggleClass(
+              "koofr-revoke-auth-button-hide",
+              this.plugin.settings.koofr.refreshToken === ""
+            );
+            new Notice(t("modal_koofrrevokeauth_clean_notice"));
+            this.close();
+          } catch (err) {
+            console.error(err);
+            new Notice(t("modal_koofrrevokeauth_clean_fail"));
+          }
+        });
+      });
+  }
+
+  onClose() {
+    const { contentEl } = this;
+    contentEl.empty();
+  }
+}
+
+export const generateKoofrSettingsPart = (
+  containerEl: HTMLElement,
+  t: (x: TransItemType, vars?: any) => string,
+  app: App,
+  plugin: RemotelySavePlugin,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+) => {
+  const koofrDiv = containerEl.createEl("div", {
+    cls: "koofr-hide",
+  });
+  koofrDiv.toggleClass("koofr-hide", plugin.settings.serviceType !== "koofr");
+  koofrDiv.createEl("h2", { text: t("settings_koofr") });
+
+  const koofrLongDescDiv = koofrDiv.createEl("div", {
+    cls: "settings-long-desc",
+  });
+  for (const c of [
+    t("settings_koofr_disclaimer1"),
+    t("settings_koofr_disclaimer2"),
+  ]) {
+    koofrLongDescDiv.createEl("p", {
+      text: c,
+      cls: "koofr-disclaimer",
+    });
+  }
+
+  koofrLongDescDiv.createEl("p", {
+    text: t("settings_koofr_folder", {
+      remoteBaseDir: plugin.settings.koofr.remoteBaseDir || app.vault.getName(),
+    }),
+  });
+
+  koofrLongDescDiv.createDiv({
+    text: stringToFragment(t("settings_koofr_pro_desc")),
+    cls: "koofr-disclaimer",
+  });
+
+  const koofrNotShowUpHintSetting = new Setting(koofrDiv)
+    .setName(t("settings_koofr_notshowuphint"))
+    .setDesc(t("settings_koofr_notshowuphint_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_koofr_notshowuphint_view_pro"));
+      button.onClick(async () => {
+        window.location.href = "#settings-pro";
+      });
+    });
+
+  const koofrAllowedToUsedDiv = koofrDiv.createDiv();
+  // if pro enabled, show up; otherwise hide.
+  const allowKoofr =
+    plugin.settings.pro?.enabledProFeatures.filter(
+      (x) => x.featureName === "feature-koofr"
+    ).length === 1;
+  console.debug(`allow to show up koofr settings? ${allowKoofr}`);
+  if (allowKoofr) {
+    koofrAllowedToUsedDiv.removeClass("koofr-allow-to-use-hide");
+    koofrNotShowUpHintSetting.settingEl.addClass("koofr-allow-to-use-hide");
+  } else {
+    koofrAllowedToUsedDiv.addClass("koofr-allow-to-use-hide");
+    koofrNotShowUpHintSetting.settingEl.removeClass("koofr-allow-to-use-hide");
+  }
+
+  const koofrSelectAuthDiv = koofrAllowedToUsedDiv.createDiv();
+  const koofrAuthDiv = koofrSelectAuthDiv.createDiv({
+    cls: "koofr-auth-button-hide settings-auth-related",
+  });
+  const koofrRevokeAuthDiv = koofrSelectAuthDiv.createDiv({
+    cls: "koofr-revoke-auth-button-hide settings-auth-related",
+  });
+
+  const koofrRevokeAuthSetting = new Setting(koofrRevokeAuthDiv)
+    .setName(t("settings_koofr_revoke"))
+    .setDesc(t("settings_koofr_revoke_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_koofr_revoke_button"));
+      button.onClick(async () => {
+        new KoofrRevokeAuthModal(
+          app,
+          plugin,
+          koofrAuthDiv,
+          koofrRevokeAuthDiv,
+          t
+        ).open();
+      });
+    });
+
+  new Setting(koofrAuthDiv)
+    .setName(t("settings_koofr_auth"))
+    .setDesc(t("settings_koofr_auth_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_koofr_auth_button"));
+      button.onClick(async () => {
+        const modal = new KoofrAuthModal(
+          app,
+          plugin,
+          koofrAuthDiv,
+          koofrRevokeAuthDiv,
+          koofrRevokeAuthSetting,
+          t
+        );
+        plugin.oauth2Info.helperModal = modal;
+        plugin.oauth2Info.authDiv = koofrAuthDiv;
+        plugin.oauth2Info.revokeDiv = koofrRevokeAuthDiv;
+        plugin.oauth2Info.revokeAuthSetting = koofrRevokeAuthSetting;
+        modal.open();
+      });
+    });
+
+  koofrAuthDiv.toggleClass(
+    "koofr-auth-button-hide",
+    plugin.settings.koofr.refreshToken !== ""
+  );
+  koofrRevokeAuthDiv.toggleClass(
+    "koofr-revoke-auth-button-hide",
+    plugin.settings.koofr.refreshToken === ""
+  );
+
+  let newkoofrRemoteBaseDir = plugin.settings.koofr.remoteBaseDir || "";
+  new Setting(koofrAllowedToUsedDiv)
+    .setName(t("settings_remotebasedir"))
+    .setDesc(t("settings_remotebasedir_desc"))
+    .addText((text) =>
+      text
+        .setPlaceholder(app.vault.getName())
+        .setValue(newkoofrRemoteBaseDir)
+        .onChange((value) => {
+          newkoofrRemoteBaseDir = value.trim();
+        })
+    )
+    .addButton((button) => {
+      button.setButtonText(t("confirm"));
+      button.onClick(() => {
+        new ChangeRemoteBaseDirModal(
+          app,
+          plugin,
+          newkoofrRemoteBaseDir,
+          "koofr"
+        ).open();
+      });
+    });
+  new Setting(koofrAllowedToUsedDiv)
+    .setName(t("settings_checkonnectivity"))
+    .setDesc(t("settings_checkonnectivity_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_checkonnectivity_button"));
+      button.onClick(async () => {
+        new Notice(t("settings_checkonnectivity_checking"));
+        const client = getClient(plugin.settings, app.vault.getName(), () =>
+          plugin.saveSettings()
+        );
+        const errors = { msg: "" };
+        const res = await client.checkConnect((err: any) => {
+          errors.msg = `${err}`;
+        });
+        if (res) {
+          new Notice(t("settings_koofr_connect_succ"));
+        } else {
+          new Notice(t("settings_koofr_connect_fail"));
+          new Notice(errors.msg);
+        }
+      });
+    });
+
+  return {
+    koofrDiv: koofrDiv,
+    koofrAllowedToUsedDiv: koofrAllowedToUsedDiv,
+    koofrNotShowUpHintSetting: koofrNotShowUpHintSetting,
+  };
+};
@@ -0,0 +1,311 @@
+import cloneDeep from "lodash/cloneDeep";
+import { type App, Modal, Notice, Setting } from "obsidian";
+import { getClient } from "../../src/fsGetter";
+import type { TransItemType } from "../../src/i18n";
+import type RemotelySavePlugin from "../../src/main";
+import { stringToFragment } from "../../src/misc";
+import { ChangeRemoteBaseDirModal } from "../../src/settings";
+import { DEFAULT_PCLOUD_CONFIG, generateAuthUrl } from "./fsPCloud";
+
+class PCloudAuthModal extends Modal {
+  readonly plugin: RemotelySavePlugin;
+  readonly authDiv: HTMLDivElement;
+  readonly revokeAuthDiv: HTMLDivElement;
+  readonly revokeAuthSetting: Setting;
+  readonly t: (x: TransItemType, vars?: any) => string;
+  constructor(
+    app: App,
+    plugin: RemotelySavePlugin,
+    authDiv: HTMLDivElement,
+    revokeAuthDiv: HTMLDivElement,
+    revokeAuthSetting: Setting,
+    t: (x: TransItemType, vars?: any) => string
+  ) {
+    super(app);
+    this.plugin = plugin;
+    this.authDiv = authDiv;
+    this.revokeAuthDiv = revokeAuthDiv;
+    this.revokeAuthSetting = revokeAuthSetting;
+    this.t = t;
+  }
+
+  async onOpen() {
+    const { contentEl } = this;
+    const t = this.t;
+
+    const { authUrl } = await generateAuthUrl(true);
+    const div2 = contentEl.createDiv();
+    div2.createDiv({
+      text: stringToFragment(t("modal_pcloudauth_tutorial")),
+    });
+    div2.createEl(
+      "button",
+      {
+        text: t("modal_pcloudauth_copybutton"),
+      },
+      (el) => {
+        el.onclick = async () => {
+          await navigator.clipboard.writeText(authUrl);
+          new Notice(t("modal_pcloudauth_copynotice"));
+        };
+      }
+    );
+
+    contentEl.createEl("p").createEl("a", {
+      href: authUrl,
+      text: authUrl,
+    });
+  }
+
+  onClose() {
+    const { contentEl } = this;
+    contentEl.empty();
+  }
+}
+
+class PCloudRevokeAuthModal extends Modal {
+  readonly plugin: RemotelySavePlugin;
+  readonly authDiv: HTMLDivElement;
+  readonly revokeAuthDiv: HTMLDivElement;
+  readonly t: (x: TransItemType, vars?: any) => string;
+  constructor(
+    app: App,
+    plugin: RemotelySavePlugin,
+    authDiv: HTMLDivElement,
+    revokeAuthDiv: HTMLDivElement,
+    t: (x: TransItemType, vars?: any) => string
+  ) {
+    super(app);
+    this.plugin = plugin;
+    this.authDiv = authDiv;
+    this.revokeAuthDiv = revokeAuthDiv;
+    this.t = t;
+  }
+
+  async onOpen() {
+    const t = this.t;
+    const { contentEl } = this;
+
+    contentEl.createEl("p", {
+      text: t("modal_pcloudrevokeauth_step1"),
+    });
+    const consentUrl = "https://my.pcloud.com/#page=settings&settings=tab-apps";
+    contentEl.createEl("p").createEl("a", {
+      href: consentUrl,
+      text: consentUrl,
+    });
+
+    contentEl.createEl("p", {
+      text: t("modal_pcloudrevokeauth_step2"),
+    });
+
+    new Setting(contentEl)
+      .setName(t("modal_pcloudrevokeauth_clean"))
+      .setDesc(t("modal_pcloudrevokeauth_clean_desc"))
+      .addButton(async (button) => {
+        button.setButtonText(t("modal_pcloudrevokeauth_clean_button"));
+        button.onClick(async () => {
+          try {
+            this.plugin.settings.pcloud = cloneDeep(DEFAULT_PCLOUD_CONFIG);
+
+            await this.plugin.saveSettings();
+            this.authDiv.toggleClass(
+              "pcloud-auth-button-hide",
+              this.plugin.settings.pcloud.accessToken !== ""
+            );
+            this.revokeAuthDiv.toggleClass(
+              "pcloud-revoke-auth-button-hide",
+              this.plugin.settings.pcloud.accessToken === ""
+            );
+            new Notice(t("modal_pcloudrevokeauth_clean_notice"));
+            this.close();
+          } catch (err) {
+            console.error(err);
+            new Notice(t("modal_pcloudrevokeauth_clean_fail"));
+          }
+        });
+      });
+  }
+
+  onClose() {
+    const { contentEl } = this;
+    contentEl.empty();
+  }
+}
+
+export const generatePCloudSettingsPart = (
+  containerEl: HTMLElement,
+  t: (x: TransItemType, vars?: any) => string,
+  app: App,
+  plugin: RemotelySavePlugin,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+) => {
+  const pCloudDiv = containerEl.createEl("div", {
+    cls: "pcloud-hide",
+  });
+  pCloudDiv.toggleClass(
+    "pcloud-hide",
+    plugin.settings.serviceType !== "pcloud"
+  );
+  pCloudDiv.createEl("h2", { text: t("settings_pcloud") });
+
+  const pcloudLongDescDiv = pCloudDiv.createEl("div", {
+    cls: "settings-long-desc",
+  });
+  for (const c of [
+    t("settings_pcloud_disclaimer1"),
+    t("settings_pcloud_disclaimer2"),
+  ]) {
+    pcloudLongDescDiv.createEl("p", {
+      text: c,
+      cls: "pcloud-disclaimer",
+    });
+  }
+
+  pcloudLongDescDiv.createEl("p", {
+    text: t("settings_pcloud_folder", {
+      remoteBaseDir:
+        plugin.settings.pcloud.remoteBaseDir || app.vault.getName(),
+    }),
+  });
+
+  pcloudLongDescDiv.createDiv({
+    text: stringToFragment(t("settings_pcloud_pro_desc")),
+    cls: "pcloud-disclaimer",
+  });
+
+  const pCloudNotShowUpHintSetting = new Setting(pCloudDiv)
+    .setName(t("settings_pcloud_notshowuphint"))
+    .setDesc(t("settings_pcloud_notshowuphint_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_pcloud_notshowuphint_view_pro"));
+      button.onClick(async () => {
+        window.location.href = "#settings-pro";
+      });
+    });
+
+  const pCloudAllowedToUsedDiv = pCloudDiv.createDiv();
+  // if pro enabled, show up; otherwise hide.
+  const allowPCloud =
+    plugin.settings.pro?.enabledProFeatures.filter(
+      (x) => x.featureName === "feature-pcloud"
+    ).length === 1;
+  console.debug(`allow to show up pcloud settings? ${allowPCloud}`);
+  if (allowPCloud) {
+    pCloudAllowedToUsedDiv.removeClass("pcloud-allow-to-use-hide");
+    pCloudNotShowUpHintSetting.settingEl.addClass("pcloud-allow-to-use-hide");
+  } else {
+    pCloudAllowedToUsedDiv.addClass("pcloud-allow-to-use-hide");
+    pCloudNotShowUpHintSetting.settingEl.removeClass(
+      "pcloud-allow-to-use-hide"
+    );
+  }
+
+  const pcloudSelectAuthDiv = pCloudAllowedToUsedDiv.createDiv();
+  const pcloudAuthDiv = pcloudSelectAuthDiv.createDiv({
+    cls: "pcloud-auth-button-hide settings-auth-related",
+  });
+  const pcloudRevokeAuthDiv = pcloudSelectAuthDiv.createDiv({
+    cls: "pcloud-revoke-auth-button-hide settings-auth-related",
+  });
+
+  const pcloudRevokeAuthSetting = new Setting(pcloudRevokeAuthDiv)
+    .setName(t("settings_pcloud_revoke"))
+    .setDesc(t("settings_pcloud_revoke_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_pcloud_revoke_button"));
+      button.onClick(async () => {
+        new PCloudRevokeAuthModal(
+          app,
+          plugin,
+          pcloudAuthDiv,
+          pcloudRevokeAuthDiv,
+          t
+        ).open();
+      });
+    });
+
+  new Setting(pcloudAuthDiv)
+    .setName(t("settings_pcloud_auth"))
+    .setDesc(t("settings_pcloud_auth_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_pcloud_auth_button"));
+      button.onClick(async () => {
+        const modal = new PCloudAuthModal(
+          app,
+          plugin,
+          pcloudAuthDiv,
+          pcloudRevokeAuthDiv,
+          pcloudRevokeAuthSetting,
+          t
+        );
+        plugin.oauth2Info.helperModal = modal;
+        plugin.oauth2Info.authDiv = pcloudAuthDiv;
+        plugin.oauth2Info.revokeDiv = pcloudRevokeAuthDiv;
+        plugin.oauth2Info.revokeAuthSetting = pcloudRevokeAuthSetting;
+        modal.open();
+      });
+    });
+
+  pcloudAuthDiv.toggleClass(
+    "pcloud-auth-button-hide",
+    plugin.settings.pcloud.accessToken !== ""
+  );
+  pcloudRevokeAuthDiv.toggleClass(
+    "pcloud-revoke-auth-button-hide",
+    plugin.settings.pcloud.accessToken === ""
+  );
+
+  let newpcloudRemoteBaseDir = plugin.settings.pcloud.remoteBaseDir || "";
+  new Setting(pCloudAllowedToUsedDiv)
+    .setName(t("settings_remotebasedir"))
+    .setDesc(t("settings_remotebasedir_desc"))
+    .addText((text) =>
+      text
+        .setPlaceholder(app.vault.getName())
+        .setValue(newpcloudRemoteBaseDir)
+        .onChange((value) => {
+          newpcloudRemoteBaseDir = value.trim();
+        })
+    )
+    .addButton((button) => {
+      button.setButtonText(t("confirm"));
+      button.onClick(() => {
+        new ChangeRemoteBaseDirModal(
+          app,
+          plugin,
+          newpcloudRemoteBaseDir,
+          "pcloud"
+        ).open();
+      });
+    });
+
+  new Setting(pCloudAllowedToUsedDiv)
+    .setName(t("settings_checkonnectivity"))
+    .setDesc(t("settings_checkonnectivity_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_checkonnectivity_button"));
+      button.onClick(async () => {
+        new Notice(t("settings_checkonnectivity_checking"));
+        const client = getClient(plugin.settings, app.vault.getName(), () =>
+          plugin.saveSettings()
+        );
+        const errors = { msg: "" };
+        const res = await client.checkConnect((err: any) => {
+          errors.msg = `${err}`;
+        });
+        if (res) {
+          new Notice(t("settings_pcloud_connect_succ"));
+        } else {
+          new Notice(t("settings_pcloud_connect_fail"));
+          new Notice(errors.msg);
+        }
+      });
+    });
+
+  return {
+    pCloudDiv: pCloudDiv,
+    pCloudAllowedToUsedDiv: pCloudAllowedToUsedDiv,
+    pCloudNotShowUpHintSetting: pCloudNotShowUpHintSetting,
+  };
+};
@@ -0,0 +1,458 @@
+import cloneDeep from "lodash/cloneDeep";
+import { type App, Modal, Notice, Setting } from "obsidian";
+import { features } from "process";
+import type { TransItemType } from "../../src/i18n";
+import type RemotelySavePlugin from "../../src/main";
+import { stringToFragment } from "../../src/misc";
+import {
+  DEFAULT_PRO_CONFIG,
+  generateAuthUrlAndCodeVerifierChallenge,
+  getAndSaveProEmail,
+  getAndSaveProFeatures,
+  sendAuthReq,
+  setConfigBySuccessfullAuthInplace,
+} from "./account";
+import {
+  type FeatureInfo,
+  PRO_CLIENT_ID,
+  type ProConfig,
+} from "./baseTypesPro";
+
+export class ProAuthModal extends Modal {
+  readonly plugin: RemotelySavePlugin;
+  readonly authDiv: HTMLDivElement;
+  readonly revokeAuthDiv: HTMLDivElement;
+  readonly revokeAuthSetting: Setting;
+  readonly proFeaturesListSetting: Setting;
+  readonly t: (x: TransItemType, vars?: any) => string;
+  constructor(
+    app: App,
+    plugin: RemotelySavePlugin,
+    authDiv: HTMLDivElement,
+    revokeAuthDiv: HTMLDivElement,
+    revokeAuthSetting: Setting,
+    proFeaturesListSetting: Setting,
+    t: (x: TransItemType, vars?: any) => string
+  ) {
+    super(app);
+    this.plugin = plugin;
+    this.authDiv = authDiv;
+    this.revokeAuthDiv = revokeAuthDiv;
+    this.revokeAuthSetting = revokeAuthSetting;
+    this.proFeaturesListSetting = proFeaturesListSetting;
+    this.t = t;
+  }
+
+  async onOpen() {
+    const { contentEl } = this;
+
+    const { authUrl, codeVerifier, codeChallenge } =
+      await generateAuthUrlAndCodeVerifierChallenge(false);
+    this.plugin.oauth2Info.verifier = codeVerifier;
+
+    const t = this.t;
+
+    const div2 = contentEl.createDiv();
+    div2.createEl(
+      "button",
+      {
+        text: t("modal_proauth_copybutton"),
+      },
+      (el) => {
+        el.onclick = async () => {
+          await navigator.clipboard.writeText(authUrl);
+          new Notice(t("modal_proauth_copynotice"));
+        };
+      }
+    );
+
+    contentEl.createEl("p").createEl("a", {
+      href: authUrl,
+      text: authUrl,
+    });
+
+    // manual paste
+    let authCode = "";
+    new Setting(contentEl)
+      .setName(t("modal_proauth_maualinput"))
+      .setDesc(t("modal_proauth_maualinput_desc"))
+      .addText((text) =>
+        text
+          .setPlaceholder("")
+          .setValue("")
+          .onChange((val) => {
+            authCode = val.trim();
+          })
+      )
+      .addButton(async (button) => {
+        button.setButtonText(t("submit"));
+        button.onClick(async () => {
+          new Notice(t("modal_proauth_maualinput_notice"));
+          try {
+            const authRes = await sendAuthReq(
+              codeVerifier ?? "verifier",
+              authCode,
+              async (e: any) => {
+                new Notice(t("protocol_pro_connect_fail"));
+                new Notice(`${e}`);
+                throw e;
+              }
+            );
+            console.debug(authRes);
+            const self = this;
+            setConfigBySuccessfullAuthInplace(
+              this.plugin.settings.pro!,
+              authRes!,
+              () => self.plugin.saveSettings()
+            );
+            await getAndSaveProFeatures(
+              this.plugin.settings.pro!,
+              this.plugin.manifest.version,
+              () => self.plugin.saveSettings()
+            );
+            this.proFeaturesListSetting.setDesc(
+              stringToFragment(
+                t("settings_pro_features_desc", {
+                  features: featureListToText(
+                    this.plugin.settings.pro!.enabledProFeatures
+                  ),
+                })
+              )
+            );
+            await getAndSaveProEmail(
+              this.plugin.settings.pro!,
+              this.plugin.manifest.version,
+              () => self.plugin.saveSettings()
+            );
+
+            new Notice(
+              t("protocol_pro_connect_manualinput_succ", {
+                email: this.plugin.settings.pro!.email ?? "(no email)",
+              })
+            );
+
+            this.plugin.oauth2Info.verifier = ""; // reset it
+            this.plugin.oauth2Info.authDiv?.toggleClass(
+              "pro-auth-button-hide",
+              this.plugin.settings.pro?.refreshToken !== ""
+            );
+            this.plugin.oauth2Info.authDiv = undefined;
+
+            this.plugin.oauth2Info.revokeAuthSetting?.setDesc(
+              t("protocol_pro_connect_succ_revoke", {
+                email: this.plugin.settings.pro?.email,
+              })
+            );
+            this.plugin.oauth2Info.revokeAuthSetting = undefined;
+            this.plugin.oauth2Info.revokeDiv?.toggleClass(
+              "pro-revoke-auth-button-hide",
+              this.plugin.settings.pro?.email === ""
+            );
+            this.plugin.oauth2Info.revokeDiv = undefined;
+
+            // try to remove data in clipboard
+            await navigator.clipboard.writeText("");
+
+            this.close();
+          } catch (err) {
+            console.error(err);
+            new Notice(t("modal_proauth_maualinput_conn_fail"));
+          }
+        });
+      });
+  }
+
+  onClose() {
+    const { contentEl } = this;
+    contentEl.empty();
+  }
+}
+
+export class ProRevokeAuthModal extends Modal {
+  readonly plugin: RemotelySavePlugin;
+  readonly authDiv: HTMLDivElement;
+  readonly revokeAuthDiv: HTMLDivElement;
+  readonly t: (x: TransItemType, vars?: any) => string;
+  constructor(
+    app: App,
+    plugin: RemotelySavePlugin,
+    authDiv: HTMLDivElement,
+    revokeAuthDiv: HTMLDivElement,
+    t: (x: TransItemType, vars?: any) => string
+  ) {
+    super(app);
+    this.plugin = plugin;
+    this.authDiv = authDiv;
+    this.revokeAuthDiv = revokeAuthDiv;
+    this.t = t;
+  }
+
+  async onOpen() {
+    const { contentEl } = this;
+    const t = this.t;
+
+    contentEl.createEl("p", {
+      text: t("modal_prorevokeauth"),
+    });
+
+    new Setting(contentEl)
+      .setName(t("modal_prorevokeauth_clean"))
+      .setDesc(t("modal_prorevokeauth_clean_desc"))
+      .addButton(async (button) => {
+        button.setButtonText(t("modal_prorevokeauth_clean_button"));
+        button.onClick(async () => {
+          try {
+            this.plugin.settings.pro = cloneDeep(DEFAULT_PRO_CONFIG);
+            await this.plugin.saveSettings();
+            this.authDiv.toggleClass(
+              "pro-auth-button-hide",
+              this.plugin.settings.pro?.refreshToken !== ""
+            );
+            this.revokeAuthDiv.toggleClass(
+              "pro-revoke-auth-button-hide",
+              this.plugin.settings.pro?.refreshToken === ""
+            );
+            new Notice(t("modal_prorevokeauth_clean_notice"));
+            this.close();
+          } catch (err) {
+            console.error(err);
+            new Notice(t("modal_prorevokeauth_clean_fail"));
+          }
+        });
+      });
+  }
+
+  onClose() {
+    const { contentEl } = this;
+    contentEl.empty();
+  }
+}
+
+const featureListToText = (features: FeatureInfo[]) => {
+  // TODO: i18n
+  if (features === undefined || features.length === 0) {
+    return "No features enabled.";
+  }
+  return features
+    .map((x) => {
+      return `${x.featureName} (expire: ${new Date(
+        Number(x.expireAtTimeMs)
+      ).toISOString()})`;
+    })
+    .join("<br/>");
+};
+
+export const generateProSettingsPart = (
+  proDiv: HTMLDivElement,
+  t: (x: TransItemType, vars?: any) => string,
+  app: App,
+  plugin: RemotelySavePlugin,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined,
+  googleDriveAllowedToUsedDiv: HTMLDivElement,
+  googleDriveNotShowUpHintSetting: Setting,
+  boxAllowedToUsedDiv: HTMLDivElement,
+  boxNotShowUpHintSetting: Setting,
+  pCloudAllowedToUsedDiv: HTMLDivElement,
+  pCloudNotShowUpHintSetting: Setting,
+  yandexDiskAllowedToUsedDiv: HTMLDivElement,
+  yandexDiskNotShowUpHintSetting: Setting,
+  koofrAllowedToUsedDiv: HTMLDivElement,
+  koofrNotShowUpHintSetting: Setting
+) => {
+  proDiv
+    .createEl("h2", { text: t("settings_pro") })
+    .setAttribute("id", "settings-pro");
+
+  proDiv.createEl("div", {
+    text: stringToFragment(t("settings_pro_tutorial")),
+  });
+
+  const proSelectAuthDiv = proDiv.createDiv();
+  const proAuthDiv = proSelectAuthDiv.createDiv({
+    cls: "pro-auth-button-hide settings-auth-related",
+  });
+
+  const proRevokeAuthDiv = proSelectAuthDiv.createDiv({
+    cls: "pro-revoke-auth-button-hide settings-auth-related",
+  });
+
+  const proFeaturesListSetting = new Setting(proRevokeAuthDiv)
+    .setName(t("settings_pro_features"))
+    .setDesc(
+      stringToFragment(
+        t("settings_pro_features_desc", {
+          features: featureListToText(plugin.settings.pro!.enabledProFeatures),
+        })
+      )
+    );
+  proFeaturesListSetting.addButton(async (button) => {
+    button.setButtonText(t("settings_pro_features_refresh_button"));
+    button.onClick(async () => {
+      new Notice(t("settings_pro_features_refresh_fetch"));
+      await getAndSaveProFeatures(
+        plugin.settings.pro!,
+        plugin.manifest.version,
+        saveUpdatedConfigFunc
+      );
+      proFeaturesListSetting.setDesc(
+        stringToFragment(
+          t("settings_pro_features_desc", {
+            features: featureListToText(
+              plugin.settings.pro!.enabledProFeatures
+            ),
+          })
+        )
+      );
+
+      const allowGoogleDrive =
+        plugin.settings.pro?.enabledProFeatures.filter(
+          (x) => x.featureName === "feature-google_drive"
+        ).length === 1;
+      console.debug(
+        `allow to show up google drive settings? ${allowGoogleDrive}`
+      );
+      if (allowGoogleDrive) {
+        googleDriveAllowedToUsedDiv.removeClass(
+          "googledrive-allow-to-use-hide"
+        );
+        googleDriveNotShowUpHintSetting.settingEl.addClass(
+          "googledrive-allow-to-use-hide"
+        );
+      } else {
+        googleDriveAllowedToUsedDiv.addClass("googledrive-allow-to-use-hide");
+        googleDriveNotShowUpHintSetting.settingEl.removeClass(
+          "googledrive-allow-to-use-hide"
+        );
+      }
+
+      const allowBox =
+        plugin.settings.pro?.enabledProFeatures.filter(
+          (x) => x.featureName === "feature-box"
+        ).length === 1;
+      console.debug(`allow to show up Box settings? ${allowBox}`);
+      if (allowBox) {
+        boxAllowedToUsedDiv.removeClass("box-allow-to-use-hide");
+        boxNotShowUpHintSetting.settingEl.addClass("box-allow-to-use-hide");
+      } else {
+        boxAllowedToUsedDiv.addClass("box-allow-to-use-hide");
+        boxNotShowUpHintSetting.settingEl.removeClass("box-allow-to-use-hide");
+      }
+
+      const allowPCloud =
+        plugin.settings.pro?.enabledProFeatures.filter(
+          (x) => x.featureName === "feature-pcloud"
+        ).length === 1;
+      console.debug(`allow to show up pCloud settings? ${allowPCloud}`);
+      if (allowPCloud) {
+        pCloudAllowedToUsedDiv.removeClass("pcloud-allow-to-use-hide");
+        pCloudNotShowUpHintSetting.settingEl.addClass(
+          "pcloud-allow-to-use-hide"
+        );
+      } else {
+        pCloudAllowedToUsedDiv.addClass("pcloud-allow-to-use-hide");
+        pCloudNotShowUpHintSetting.settingEl.removeClass(
+          "pcloud-allow-to-use-hide"
+        );
+      }
+
+      const allowYandexDisk =
+        plugin.settings.pro?.enabledProFeatures.filter(
+          (x) => x.featureName === "feature-yandex_disk"
+        ).length === 1;
+      console.debug(
+        `allow to show up Yandex Disk settings? ${allowYandexDisk}`
+      );
+      if (allowYandexDisk) {
+        yandexDiskAllowedToUsedDiv.removeClass("yandexdisk-allow-to-use-hide");
+        yandexDiskNotShowUpHintSetting.settingEl.addClass(
+          "yandexdisk-allow-to-use-hide"
+        );
+      } else {
+        yandexDiskAllowedToUsedDiv.addClass("yandexdisk-allow-to-use-hide");
+        yandexDiskNotShowUpHintSetting.settingEl.removeClass(
+          "yandexdisk-allow-to-use-hide"
+        );
+      }
+
+      const allowKoofr =
+        plugin.settings.pro?.enabledProFeatures.filter(
+          (x) => x.featureName === "feature-koofr"
+        ).length === 1;
+      console.debug(`allow to show up Koofr settings? ${allowKoofr}`);
+      if (allowKoofr) {
+        koofrAllowedToUsedDiv.removeClass("koofr-allow-to-use-hide");
+        koofrNotShowUpHintSetting.settingEl.addClass("koofr-allow-to-use-hide");
+      } else {
+        koofrAllowedToUsedDiv.addClass("koofr-allow-to-use-hide");
+        koofrNotShowUpHintSetting.settingEl.removeClass(
+          "koofr-allow-to-use-hide"
+        );
+      }
+
+      new Notice(t("settings_pro_features_refresh_succ"));
+    });
+  });
+
+  const proRevokeAuthSetting = new Setting(proRevokeAuthDiv)
+    .setName(t("settings_pro_revoke"))
+    .setDesc(
+      t("settings_pro_revoke_desc", {
+        email: plugin.settings.pro?.email,
+      })
+    )
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_pro_revoke_button"));
+      button.onClick(async () => {
+        new ProRevokeAuthModal(
+          app,
+          plugin,
+          proAuthDiv,
+          proRevokeAuthDiv,
+          t
+        ).open();
+      });
+    });
+
+  new Setting(proAuthDiv)
+    .setName(t("settings_pro_intro"))
+    .setDesc(stringToFragment(t("settings_pro_intro_desc")))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_pro_intro_button"));
+      button.onClick(async () => {
+        window.open("https://remotelysave.com/user/signupin", "_self");
+      });
+    });
+
+  new Setting(proAuthDiv)
+    .setName(t("settings_pro_auth"))
+    .setDesc(t("settings_pro_auth_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_pro_auth_button"));
+      button.onClick(async () => {
+        const modal = new ProAuthModal(
+          app,
+          plugin,
+          proAuthDiv,
+          proRevokeAuthDiv,
+          proRevokeAuthSetting,
+          proFeaturesListSetting,
+          t
+        );
+        plugin.oauth2Info.helperModal = modal;
+        plugin.oauth2Info.authDiv = proAuthDiv;
+        plugin.oauth2Info.revokeDiv = proRevokeAuthDiv;
+        plugin.oauth2Info.revokeAuthSetting = proRevokeAuthSetting;
+
+        modal.open();
+      });
+    });
+
+  proAuthDiv.toggleClass(
+    "pro-auth-button-hide",
+    plugin.settings.pro?.refreshToken !== ""
+  );
+  proRevokeAuthDiv.toggleClass(
+    "pro-revoke-auth-button-hide",
+    plugin.settings.pro?.refreshToken === ""
+  );
+};
@@ -0,0 +1,378 @@
+import cloneDeep from "lodash/cloneDeep";
+import { type App, Modal, Notice, Setting } from "obsidian";
+import { getClient } from "../../src/fsGetter";
+import type { TransItemType } from "../../src/i18n";
+import type RemotelySavePlugin from "../../src/main";
+import { stringToFragment } from "../../src/misc";
+import { ChangeRemoteBaseDirModal } from "../../src/settings";
+import {
+  DEFAULT_YANDEXDISK_CONFIG,
+  generateAuthUrl,
+  sendRefreshTokenReq,
+} from "./fsYandexDisk";
+
+class YandexDiskAuthModal extends Modal {
+  readonly plugin: RemotelySavePlugin;
+  readonly authDiv: HTMLDivElement;
+  readonly revokeAuthDiv: HTMLDivElement;
+  readonly revokeAuthSetting: Setting;
+  readonly t: (x: TransItemType, vars?: any) => string;
+  constructor(
+    app: App,
+    plugin: RemotelySavePlugin,
+    authDiv: HTMLDivElement,
+    revokeAuthDiv: HTMLDivElement,
+    revokeAuthSetting: Setting,
+    t: (x: TransItemType, vars?: any) => string
+  ) {
+    super(app);
+    this.plugin = plugin;
+    this.authDiv = authDiv;
+    this.revokeAuthDiv = revokeAuthDiv;
+    this.revokeAuthSetting = revokeAuthSetting;
+    this.t = t;
+  }
+
+  async onOpen() {
+    const { contentEl } = this;
+    const t = this.t;
+
+    const authUrl = generateAuthUrl(true);
+    const div2 = contentEl.createDiv();
+    div2.createDiv({
+      text: stringToFragment(t("modal_yandexdiskauth_tutorial")),
+    });
+    div2.createEl(
+      "button",
+      {
+        text: t("modal_yandexdiskauth_copybutton"),
+      },
+      (el) => {
+        el.onclick = async () => {
+          await navigator.clipboard.writeText(authUrl);
+          new Notice(t("modal_yandexdiskauth_copynotice"));
+        };
+      }
+    );
+
+    contentEl.createEl("p").createEl("a", {
+      href: authUrl,
+      text: authUrl,
+    });
+
+    // let refreshToken = "";
+    // new Setting(contentEl)
+    //   .setName(t("modal_yandexdisk_maualinput"))
+    //   .setDesc(t("modal_yandexdisk_maualinput_desc"))
+    //   .addText((text) =>
+    //     text
+    //       .setPlaceholder("")
+    //       .setValue("")
+    //       .onChange((val) => {
+    //         refreshToken = val.trim();
+    //       })
+    //   )
+    //   .addButton(async (button) => {
+    //     button.setButtonText(t("submit"));
+    //     button.onClick(async () => {
+    //       new Notice(t("modal_yandexdisk_maualinput_notice"));
+
+    //       try {
+    //         if (this.plugin.settings.yandexdisk === undefined) {
+    //           this.plugin.settings.yandexdisk = cloneDeep(
+    //             DEFAULT_YANDEXDISK_CONFIG
+    //           );
+    //         }
+    //         this.plugin.settings.yandexdisk.refreshToken = refreshToken;
+    //         this.plugin.settings.yandexdisk.accessToken = "access";
+    //         this.plugin.settings.yandexdisk.accessTokenExpiresAtTimeMs = 1;
+    //         this.plugin.settings.yandexdisk.accessTokenExpiresInMs = 1;
+
+    //         // TODO: abstraction leaking now, how to fix?
+    //         const k = await sendRefreshTokenReq(refreshToken);
+    //         const ts = Date.now();
+    //         this.plugin.settings.yandexdisk.accessToken = k.access_token;
+    //         this.plugin.settings.yandexdisk.accessTokenExpiresInMs =
+    //           k.expires_in * 1000;
+    //         this.plugin.settings.yandexdisk.accessTokenExpiresAtTimeMs =
+    //           ts + k.expires_in * 1000 - 60 * 2 * 1000;
+    //         await this.plugin.saveSettings();
+
+    //         // try to remove data in clipboard
+    //         await navigator.clipboard.writeText("");
+
+    //         new Notice(t("modal_yandexdisk_maualinput_succ_notice"));
+    //       } catch (e) {
+    //         console.error(e);
+    //         new Notice(t("modal_yandexdisk_maualinput_fail_notice"));
+    //       } finally {
+    //         this.authDiv.toggleClass(
+    //           "yandexdisk-auth-button-hide",
+    //           this.plugin.settings.yandexdisk.refreshToken !== ""
+    //         );
+    //         this.revokeAuthDiv.toggleClass(
+    //           "yandexdisk-revoke-auth-button-hide",
+    //           this.plugin.settings.yandexdisk.refreshToken === ""
+    //         );
+    //         this.close();
+    //       }
+    //     });
+    //   });
+  }
+
+  onClose() {
+    const { contentEl } = this;
+    contentEl.empty();
+  }
+}
+
+class YandexDiskRevokeAuthModal extends Modal {
+  readonly plugin: RemotelySavePlugin;
+  readonly authDiv: HTMLDivElement;
+  readonly revokeAuthDiv: HTMLDivElement;
+  readonly t: (x: TransItemType, vars?: any) => string;
+  constructor(
+    app: App,
+    plugin: RemotelySavePlugin,
+    authDiv: HTMLDivElement,
+    revokeAuthDiv: HTMLDivElement,
+    t: (x: TransItemType, vars?: any) => string
+  ) {
+    super(app);
+    this.plugin = plugin;
+    this.authDiv = authDiv;
+    this.revokeAuthDiv = revokeAuthDiv;
+    this.t = t;
+  }
+
+  async onOpen() {
+    const t = this.t;
+    const { contentEl } = this;
+
+    contentEl.createEl("p", {
+      text: t("modal_yandexdiskrevokeauth_step1"),
+    });
+    const consentUrl = "https://app.yandexDisk.com/account/security";
+    contentEl.createEl("p").createEl("a", {
+      href: consentUrl,
+      text: consentUrl,
+    });
+
+    contentEl.createEl("p", {
+      text: t("modal_yandexdiskrevokeauth_step2"),
+    });
+
+    new Setting(contentEl)
+      .setName(t("modal_yandexdiskrevokeauth_clean"))
+      .setDesc(t("modal_yandexdiskrevokeauth_clean_desc"))
+      .addButton(async (button) => {
+        button.setButtonText(t("modal_yandexdiskrevokeauth_clean_button"));
+        button.onClick(async () => {
+          try {
+            this.plugin.settings.yandexdisk = cloneDeep(
+              DEFAULT_YANDEXDISK_CONFIG
+            );
+
+            await this.plugin.saveSettings();
+            this.authDiv.toggleClass(
+              "yandexdisk-auth-button-hide",
+              this.plugin.settings.yandexdisk.refreshToken !== ""
+            );
+            this.revokeAuthDiv.toggleClass(
+              "yandexdisk-revoke-auth-button-hide",
+              this.plugin.settings.yandexdisk.refreshToken === ""
+            );
+            new Notice(t("modal_yandexdiskrevokeauth_clean_notice"));
+            this.close();
+          } catch (err) {
+            console.error(err);
+            new Notice(t("modal_yandexdiskrevokeauth_clean_fail"));
+          }
+        });
+      });
+  }
+
+  onClose() {
+    const { contentEl } = this;
+    contentEl.empty();
+  }
+}
+
+export const generateYandexDiskSettingsPart = (
+  containerEl: HTMLElement,
+  t: (x: TransItemType, vars?: any) => string,
+  app: App,
+  plugin: RemotelySavePlugin,
+  saveUpdatedConfigFunc: () => Promise<any> | undefined
+) => {
+  const yandexDiskDiv = containerEl.createEl("div", {
+    cls: "yandexdisk-hide",
+  });
+  yandexDiskDiv.toggleClass(
+    "yandexdisk-hide",
+    plugin.settings.serviceType !== "yandexdisk"
+  );
+  yandexDiskDiv.createEl("h2", { text: t("settings_yandexdisk") });
+
+  const yandexDiskLongDescDiv = yandexDiskDiv.createEl("div", {
+    cls: "settings-long-desc",
+  });
+  for (const c of [
+    t("settings_yandexdisk_disclaimer1"),
+    t("settings_yandexdisk_disclaimer2"),
+  ]) {
+    yandexDiskLongDescDiv.createEl("p", {
+      text: c,
+      cls: "yandexdisk-disclaimer",
+    });
+  }
+
+  yandexDiskLongDescDiv.createEl("p", {
+    text: t("settings_yandexdisk_folder", {
+      remoteBaseDir:
+        plugin.settings.yandexdisk.remoteBaseDir || app.vault.getName(),
+    }),
+  });
+
+  yandexDiskLongDescDiv.createDiv({
+    text: stringToFragment(t("settings_yandexdisk_pro_desc")),
+    cls: "yandexdisk-disclaimer",
+  });
+
+  const yandexDiskNotShowUpHintSetting = new Setting(yandexDiskDiv)
+    .setName(t("settings_yandexdisk_notshowuphint"))
+    .setDesc(t("settings_yandexdisk_notshowuphint_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_yandexdisk_notshowuphint_view_pro"));
+      button.onClick(async () => {
+        window.location.href = "#settings-pro";
+      });
+    });
+
+  const yandexDiskAllowedToUsedDiv = yandexDiskDiv.createDiv();
+  // if pro enabled, show up; otherwise hide.
+  const allowYandexDisk =
+    plugin.settings.pro?.enabledProFeatures.filter(
+      (x) => x.featureName === "feature-yandex_disk"
+    ).length === 1;
+  console.debug(`allow to show up yandexDisk settings? ${allowYandexDisk}`);
+  if (allowYandexDisk) {
+    yandexDiskAllowedToUsedDiv.removeClass("yandexdisk-allow-to-use-hide");
+    yandexDiskNotShowUpHintSetting.settingEl.addClass(
+      "yandexdisk-allow-to-use-hide"
+    );
+  } else {
+    yandexDiskAllowedToUsedDiv.addClass("yandexdisk-allow-to-use-hide");
+    yandexDiskNotShowUpHintSetting.settingEl.removeClass(
+      "yandexdisk-allow-to-use-hide"
+    );
+  }
+
+  const yandexDiskSelectAuthDiv = yandexDiskAllowedToUsedDiv.createDiv();
+  const yandexDiskAuthDiv = yandexDiskSelectAuthDiv.createDiv({
+    cls: "yandexdisk-auth-button-hide settings-auth-related",
+  });
+  const yandexDiskRevokeAuthDiv = yandexDiskSelectAuthDiv.createDiv({
+    cls: "yandexdisk-revoke-auth-button-hide settings-auth-related",
+  });
+
+  const yandexDiskRevokeAuthSetting = new Setting(yandexDiskRevokeAuthDiv)
+    .setName(t("settings_yandexdisk_revoke"))
+    .setDesc(t("settings_yandexdisk_revoke_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_yandexdisk_revoke_button"));
+      button.onClick(async () => {
+        new YandexDiskRevokeAuthModal(
+          app,
+          plugin,
+          yandexDiskAuthDiv,
+          yandexDiskRevokeAuthDiv,
+          t
+        ).open();
+      });
+    });
+
+  new Setting(yandexDiskAuthDiv)
+    .setName(t("settings_yandexdisk_auth"))
+    .setDesc(t("settings_yandexdisk_auth_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_yandexdisk_auth_button"));
+      button.onClick(async () => {
+        const modal = new YandexDiskAuthModal(
+          app,
+          plugin,
+          yandexDiskAuthDiv,
+          yandexDiskRevokeAuthDiv,
+          yandexDiskRevokeAuthSetting,
+          t
+        );
+        plugin.oauth2Info.helperModal = modal;
+        plugin.oauth2Info.authDiv = yandexDiskAuthDiv;
+        plugin.oauth2Info.revokeDiv = yandexDiskRevokeAuthDiv;
+        plugin.oauth2Info.revokeAuthSetting = yandexDiskRevokeAuthSetting;
+        modal.open();
+      });
+    });
+
+  yandexDiskAuthDiv.toggleClass(
+    "yandexdisk-auth-button-hide",
+    plugin.settings.yandexdisk.refreshToken !== ""
+  );
+  yandexDiskRevokeAuthDiv.toggleClass(
+    "yandexdisk-revoke-auth-button-hide",
+    plugin.settings.yandexdisk.refreshToken === ""
+  );
+
+  let newyandexDiskRemoteBaseDir =
+    plugin.settings.yandexdisk.remoteBaseDir || "";
+  new Setting(yandexDiskAllowedToUsedDiv)
+    .setName(t("settings_remotebasedir"))
+    .setDesc(t("settings_remotebasedir_desc"))
+    .addText((text) =>
+      text
+        .setPlaceholder(app.vault.getName())
+        .setValue(newyandexDiskRemoteBaseDir)
+        .onChange((value) => {
+          newyandexDiskRemoteBaseDir = value.trim();
+        })
+    )
+    .addButton((button) => {
+      button.setButtonText(t("confirm"));
+      button.onClick(() => {
+        new ChangeRemoteBaseDirModal(
+          app,
+          plugin,
+          newyandexDiskRemoteBaseDir,
+          "yandexdisk"
+        ).open();
+      });
+    });
+  new Setting(yandexDiskAllowedToUsedDiv)
+    .setName(t("settings_checkonnectivity"))
+    .setDesc(t("settings_checkonnectivity_desc"))
+    .addButton(async (button) => {
+      button.setButtonText(t("settings_checkonnectivity_button"));
+      button.onClick(async () => {
+        new Notice(t("settings_checkonnectivity_checking"));
+        const client = getClient(plugin.settings, app.vault.getName(), () =>
+          plugin.saveSettings()
+        );
+        const errors = { msg: "" };
+        const res = await client.checkConnect((err: any) => {
+          errors.msg = `${err}`;
+        });
+        if (res) {
+          new Notice(t("settings_yandexdisk_connect_succ"));
+        } else {
+          new Notice(t("settings_yandexdisk_connect_fail"));
+          new Notice(errors.msg);
+        }
+      });
+    });
+
+  return {
+    yandexDiskDiv: yandexDiskDiv,
+    yandexDiskAllowedToUsedDiv: yandexDiskAllowedToUsedDiv,
+    yandexDiskNotShowUpHintSetting: yandexDiskNotShowUpHintSetting,
+  };
+};
@@ -11,20 +11,21 @@ import type {
  SUPPORTED_SERVICES_TYPE,
  SyncDirectionType,
  SyncTriggerSourceType,
-} from "./baseTypes";
-import type { FakeFs } from "./fsAll";
-import type { FakeFsEncrypt } from "./fsEncrypt";
+} from "../../src/baseTypes";
+import { copyFile, copyFileOrFolder, copyFolder } from "../../src/copyLogic";
+import type { FakeFs } from "../../src/fsAll";
+import type { FakeFsEncrypt } from "../../src/fsEncrypt";
 import {
  type InternalDBs,
  clearPrevSyncRecordByVaultAndProfile,
  getAllPrevSyncRecordsByVaultAndProfile,
  insertSyncPlanRecordByVault,
  upsertPrevSyncRecordByVaultAndProfile,
-} from "./localdb";
+} from "../../src/localdb";
 import {
  DEFAULT_FILE_NAME_FOR_METADATAONREMOTE,
  DEFAULT_FILE_NAME_FOR_METADATAONREMOTE2,
-} from "./metadataOnRemote";
+} from "../../src/metadataOnRemote";
 import {
  atWhichLevel,
  getParentFolder,
@@ -32,8 +33,15 @@ import {
  isSpecialFolderNameToSkip,
  roughSizeOfObject,
  unixTimeToStr,
-} from "./misc";
-import type { Profiler } from "./profiler";
+} from "../../src/misc";
+import type { Profiler } from "../../src/profiler";
+import { checkProRunnableAndFixInplace } from "./account";
+import { duplicateFile, isMergable, mergeFile } from "./conflictLogic";
+import {
+  clearFileContentHistoryByVaultAndProfile,
+  getFileContentHistoryByVaultAndProfile,
+  upsertFileContentHistoryByVaultAndProfile,
+} from "./localdb";

 const copyEntityAndFixTimeFormat = (
  src: Entity,
@@ -283,7 +291,6 @@ const ensembleMixedEnties = async (
 */
 const getSyncPlanInplace = async (
  mixedEntityMappings: Record<string, MixedEntity>,
-  howToCleanEmptyFolder: EmptyFolderCleanType,
  skipSizeLargerThan: number,
  conflictAction: ConflictActionType,
  syncDirection: SyncDirectionType,
@@ -328,7 +335,10 @@ const getSyncPlanInplace = async (
          mixedEntry.decision = "folder_existed_both_then_do_nothing";
          mixedEntry.change = false;
        } else if (local !== undefined && remote === undefined) {
-          if (syncDirection === "incremental_pull_only") {
+          if (
+            syncDirection === "incremental_pull_only" ||
+            syncDirection === "incremental_pull_and_delete_only"
+          ) {
            mixedEntry.decisionBranch = 107;
            mixedEntry.decision = "folder_to_skip";
            mixedEntry.change = false;
@@ -339,7 +349,10 @@ const getSyncPlanInplace = async (
            mixedEntry.change = true;
          }
        } else if (local === undefined && remote !== undefined) {
-          if (syncDirection === "incremental_push_only") {
+          if (
+            syncDirection === "incremental_push_only" ||
+            syncDirection === "incremental_push_and_delete_only"
+          ) {
            mixedEntry.decisionBranch = 108;
            mixedEntry.decision = "folder_to_skip";
            mixedEntry.change = false;
@@ -357,57 +370,127 @@ const getSyncPlanInplace = async (
        }
        keptFolder.delete(key); // no need to save it in the Set later
      } else {
-        if (howToCleanEmptyFolder === "skip") {
-          mixedEntry.decisionBranch = 105;
-          mixedEntry.decision = "folder_to_skip";
+        if (local !== undefined && remote !== undefined) {
+          // both exist, do nothing
+          mixedEntry.decisionBranch = 121;
+          mixedEntry.decision = "folder_existed_both_then_do_nothing";
          mixedEntry.change = false;
-        } else if (howToCleanEmptyFolder === "clean_both") {
-          if (local !== undefined && remote !== undefined) {
-            if (syncDirection === "bidirectional") {
-              mixedEntry.decisionBranch = 106;
-              mixedEntry.decision = "folder_to_be_deleted_on_both";
-              mixedEntry.change = true;
-            } else {
-              // right now it does nothing because of "incremental"
-              // TODO: should we delete??
-              mixedEntry.decisionBranch = 109;
+          keptFolder.add(getParentFolder(key));
+        } else if (local !== undefined && remote === undefined) {
+          if (prevSync !== undefined) {
+            // then the folder is deleted on remote
+            if (
+              syncDirection === "incremental_push_only" ||
+              syncDirection === "incremental_push_and_delete_only"
+            ) {
+              mixedEntry.decisionBranch = 122;
+              mixedEntry.decision = "folder_to_skip";
+              keptFolder.add(getParentFolder(key));
+              mixedEntry.change = false;
+            } else if (syncDirection === "incremental_pull_only") {
+              mixedEntry.decisionBranch = 123;
              mixedEntry.decision = "folder_to_skip";
              mixedEntry.change = false;
-            }
-          } else if (local !== undefined && remote === undefined) {
-            if (syncDirection === "bidirectional") {
-              mixedEntry.decisionBranch = 110;
+              keptFolder.add(getParentFolder(key));
+            } else if (syncDirection === "incremental_pull_and_delete_only") {
+              mixedEntry.decisionBranch = 135;
              mixedEntry.decision = "folder_to_be_deleted_on_local";
              mixedEntry.change = true;
            } else {
-              // right now it does nothing because of "incremental"
-              // TODO: should we delete??
-              mixedEntry.decisionBranch = 111;
-              mixedEntry.decision = "folder_to_skip";
-              mixedEntry.change = false;
-            }
-          } else if (local === undefined && remote !== undefined) {
-            if (syncDirection === "bidirectional") {
-              mixedEntry.decisionBranch = 112;
-              mixedEntry.decision = "folder_to_be_deleted_on_remote";
+              // bidirectional
+              mixedEntry.decisionBranch = 124;
+              mixedEntry.decision = "folder_to_be_deleted_on_local";
              mixedEntry.change = true;
-            } else {
-              // right now it does nothing because of "incremental"
-              // TODO: should we delete??
-              mixedEntry.decisionBranch = 113;
-              mixedEntry.decision = "folder_to_skip";
-              mixedEntry.change = false;
            }
          } else {
-            // no folder to delete, do nothing
-            mixedEntry.decisionBranch = 114;
-            mixedEntry.decision = "folder_to_skip";
-            mixedEntry.change = false;
+            // then the folder is created on local
+
+            if (
+              syncDirection === "incremental_push_only" ||
+              syncDirection === "incremental_push_and_delete_only"
+            ) {
+              mixedEntry.decisionBranch = 125;
+              mixedEntry.decision =
+                "folder_existed_local_then_also_create_remote";
+              mixedEntry.change = true;
+              keptFolder.add(getParentFolder(key));
+            } else if (
+              syncDirection === "incremental_pull_only" ||
+              syncDirection === "incremental_pull_and_delete_only"
+            ) {
+              mixedEntry.decisionBranch = 126;
+              mixedEntry.decision = "folder_to_skip";
+              mixedEntry.change = false;
+              keptFolder.add(getParentFolder(key));
+            } else {
+              // bidirectional
+              mixedEntry.decisionBranch = 127;
+              mixedEntry.decision =
+                "folder_existed_local_then_also_create_remote";
+              mixedEntry.change = true;
+              keptFolder.add(getParentFolder(key));
+            }
+          }
+        } else if (local === undefined && remote !== undefined) {
+          if (prevSync !== undefined) {
+            // then the folder is deleted on local
+            if (syncDirection === "incremental_push_only") {
+              mixedEntry.decisionBranch = 128;
+              mixedEntry.decision = "folder_to_skip";
+              mixedEntry.change = false;
+              keptFolder.add(getParentFolder(key));
+            } else if (syncDirection === "incremental_push_and_delete_only") {
+              mixedEntry.decisionBranch = 136;
+              mixedEntry.decision = "folder_to_be_deleted_on_remote";
+              mixedEntry.change = true;
+            } else if (
+              syncDirection === "incremental_pull_only" ||
+              syncDirection === "incremental_pull_and_delete_only"
+            ) {
+              mixedEntry.decisionBranch = 129;
+              mixedEntry.decision = "folder_to_skip";
+              mixedEntry.change = false;
+              keptFolder.add(getParentFolder(key));
+            } else {
+              // bidirectional
+              mixedEntry.decisionBranch = 130;
+              mixedEntry.decision = "folder_to_be_deleted_on_remote";
+              mixedEntry.change = true;
+            }
+          } else {
+            // then the folder is created on remote
+            if (
+              syncDirection === "incremental_push_only" ||
+              syncDirection === "incremental_push_and_delete_only"
+            ) {
+              mixedEntry.decisionBranch = 131;
+              mixedEntry.decision = "folder_to_skip";
+              mixedEntry.change = false;
+              keptFolder.add(getParentFolder(key));
+            } else if (
+              syncDirection === "incremental_pull_only" ||
+              syncDirection === "incremental_pull_and_delete_only"
+            ) {
+              mixedEntry.decisionBranch = 132;
+              mixedEntry.decision =
+                "folder_existed_remote_then_also_create_local";
+              mixedEntry.change = true;
+              keptFolder.add(getParentFolder(key));
+            } else {
+              // bidirectional
+              mixedEntry.decisionBranch = 133;
+              mixedEntry.decision =
+                "folder_existed_remote_then_also_create_local";
+              mixedEntry.change = true;
+              keptFolder.add(getParentFolder(key));
+            }
          }
        } else {
-          throw Error(
-            `do not know how to deal with empty folder ${mixedEntry.key}`
-          );
+          // local === undefined && remote === undefined
+          // no folder to delete or create, do nothing
+          mixedEntry.decisionBranch = 134;
+          mixedEntry.decision = "folder_to_skip";
+          mixedEntry.change = false;
        }
      }
    } else {
@@ -432,7 +515,6 @@ const getSyncPlanInplace = async (
        } else {
          // Both exists, but modified or conflict
          // Look for past files of A or B.
-
          const localEqualPrevSync =
            prevSync?.mtimeCli === local.mtimeCli &&
            prevSync?.sizeEnc === local.sizeEnc;
@@ -447,7 +529,10 @@ const getSyncPlanInplace = async (
              skipSizeLargerThan <= 0 ||
              remote.sizeEnc! <= skipSizeLargerThan
            ) {
-              if (syncDirection === "incremental_push_only") {
+              if (
+                syncDirection === "incremental_push_only" ||
+                syncDirection === "incremental_push_and_delete_only"
+              ) {
                mixedEntry.decisionBranch = 26;
                mixedEntry.decision = "conflict_modified_then_keep_local";
                mixedEntry.change = true;
@@ -471,7 +556,10 @@ const getSyncPlanInplace = async (
              skipSizeLargerThan <= 0 ||
              local.sizeEnc! <= skipSizeLargerThan
            ) {
-              if (syncDirection === "incremental_pull_only") {
+              if (
+                syncDirection === "incremental_pull_only" ||
+                syncDirection === "incremental_pull_and_delete_only"
+              ) {
                mixedEntry.decisionBranch = 27;
                mixedEntry.decision = "conflict_modified_then_keep_remote";
                mixedEntry.change = true;
@@ -521,18 +609,25 @@ const getSyncPlanInplace = async (
                    mixedEntry.change = true;
                    keptFolder.add(getParentFolder(key));
                  }
-                } else {
-                  mixedEntry.decisionBranch = 15;
-                  mixedEntry.decision = "conflict_created_then_keep_both";
+                } else if (conflictAction === "smart_conflict") {
+                  // try merge!
+                  mixedEntry.decisionBranch = 302;
+                  mixedEntry.decision = "conflict_created_then_smart_conflict";
                  mixedEntry.change = true;
                  keptFolder.add(getParentFolder(key));
                }
-              } else if (syncDirection === "incremental_pull_only") {
+              } else if (
+                syncDirection === "incremental_pull_only" ||
+                syncDirection === "incremental_pull_and_delete_only"
+              ) {
                mixedEntry.decisionBranch = 22;
                mixedEntry.decision = "conflict_created_then_keep_remote";
                mixedEntry.change = true;
                keptFolder.add(getParentFolder(key));
-              } else if (syncDirection === "incremental_push_only") {
+              } else if (
+                syncDirection === "incremental_push_only" ||
+                syncDirection === "incremental_push_and_delete_only"
+              ) {
                mixedEntry.decisionBranch = 23;
                mixedEntry.decision = "conflict_created_then_keep_local";
                mixedEntry.change = true;
@@ -572,18 +667,25 @@ const getSyncPlanInplace = async (
                    mixedEntry.change = true;
                    keptFolder.add(getParentFolder(key));
                  }
-                } else {
-                  mixedEntry.decisionBranch = 20;
-                  mixedEntry.decision = "conflict_modified_then_keep_both";
+                } else if (conflictAction === "smart_conflict") {
+                  // yeah, try to merge them!
+                  mixedEntry.decisionBranch = 301;
+                  mixedEntry.decision = "conflict_modified_then_smart_conflict";
                  mixedEntry.change = true;
                  keptFolder.add(getParentFolder(key));
                }
-              } else if (syncDirection === "incremental_pull_only") {
+              } else if (
+                syncDirection === "incremental_pull_only" ||
+                syncDirection === "incremental_pull_and_delete_only"
+              ) {
                mixedEntry.decisionBranch = 24;
                mixedEntry.decision = "conflict_modified_then_keep_remote";
                mixedEntry.change = true;
                keptFolder.add(getParentFolder(key));
-              } else if (syncDirection === "incremental_push_only") {
+              } else if (
+                syncDirection === "incremental_push_only" ||
+                syncDirection === "incremental_push_and_delete_only"
+              ) {
                mixedEntry.decisionBranch = 25;
                mixedEntry.decision = "conflict_modified_then_keep_local";
                mixedEntry.change = true;
@@ -612,7 +714,10 @@ const getSyncPlanInplace = async (
            skipSizeLargerThan <= 0 ||
            remote.sizeEnc! <= skipSizeLargerThan
          ) {
-            if (syncDirection === "incremental_push_only") {
+            if (
+              syncDirection === "incremental_push_only" ||
+              syncDirection === "incremental_push_and_delete_only"
+            ) {
              mixedEntry.decisionBranch = 28;
              mixedEntry.decision = "conflict_created_then_do_nothing";
              mixedEntry.change = false;
@@ -640,7 +745,14 @@ const getSyncPlanInplace = async (
            mixedEntry.decision = "conflict_created_then_do_nothing";
            mixedEntry.change = false;
            keptFolder.add(getParentFolder(key));
-          } else if (syncDirection === "incremental_pull_only") {
+          } else if (syncDirection === "incremental_push_and_delete_only") {
+            mixedEntry.decisionBranch = 38;
+            mixedEntry.decision = "local_is_deleted_thus_also_delete_remote";
+            mixedEntry.change = true;
+          } else if (
+            syncDirection === "incremental_pull_only" ||
+            syncDirection === "incremental_pull_and_delete_only"
+          ) {
            mixedEntry.decisionBranch = 35;
            mixedEntry.decision = "conflict_created_then_keep_remote";
            mixedEntry.change = true;
@@ -656,7 +768,10 @@ const getSyncPlanInplace = async (
            skipSizeLargerThan <= 0 ||
            remote.sizeEnc! <= skipSizeLargerThan
          ) {
-            if (syncDirection === "incremental_push_only") {
+            if (
+              syncDirection === "incremental_push_only" ||
+              syncDirection === "incremental_push_and_delete_only"
+            ) {
              mixedEntry.decisionBranch = 30;
              mixedEntry.decision = "conflict_created_then_do_nothing";
              mixedEntry.change = false;
@@ -681,7 +796,10 @@ const getSyncPlanInplace = async (
        if (prevSync === undefined) {
          // if A is not in the previous list, A is new
          if (skipSizeLargerThan <= 0 || local.sizeEnc! <= skipSizeLargerThan) {
-            if (syncDirection === "incremental_pull_only") {
+            if (
+              syncDirection === "incremental_pull_only" ||
+              syncDirection === "incremental_pull_and_delete_only"
+            ) {
              mixedEntry.decisionBranch = 31;
              mixedEntry.decision = "conflict_created_then_do_nothing";
              mixedEntry.change = false;
@@ -704,7 +822,10 @@ const getSyncPlanInplace = async (
          prevSync.sizeEnc === local.sizeEnc
        ) {
          // if A is in the previous list and UNMODIFIED, A has been deleted by B
-          if (syncDirection === "incremental_push_only") {
+          if (
+            syncDirection === "incremental_push_only" ||
+            syncDirection === "incremental_push_and_delete_only"
+          ) {
            mixedEntry.decisionBranch = 32;
            mixedEntry.decision = "conflict_created_then_keep_local";
            mixedEntry.change = true;
@@ -712,6 +833,10 @@ const getSyncPlanInplace = async (
            mixedEntry.decisionBranch = 33;
            mixedEntry.decision = "conflict_created_then_do_nothing";
            mixedEntry.change = false;
+          } else if (syncDirection === "incremental_pull_and_delete_only") {
+            mixedEntry.decisionBranch = 39;
+            mixedEntry.decision = "remote_is_deleted_thus_also_delete_local";
+            mixedEntry.change = true;
          } else {
            mixedEntry.decisionBranch = 7;
            mixedEntry.decision = "remote_is_deleted_thus_also_delete_local";
@@ -720,7 +845,10 @@ const getSyncPlanInplace = async (
        } else {
          // if A is in the previous list and MODIFIED, A has been deleted by B but modified by A
          if (skipSizeLargerThan <= 0 || local.sizeEnc! <= skipSizeLargerThan) {
-            if (syncDirection === "incremental_pull_only") {
+            if (
+              syncDirection === "incremental_pull_only" ||
+              syncDirection === "incremental_pull_and_delete_only"
+            ) {
              mixedEntry.decisionBranch = 34;
              mixedEntry.decision = "conflict_created_then_do_nothing";
              mixedEntry.change = false;
@@ -774,7 +902,7 @@ const getSyncPlanInplace = async (
  mixedEntityMappings["/$@meta"] = {
    key: "/$@meta", // don't mess up with the types
    sideNotes: {
-      version: "20240525 fs version",
+      version: "20240616 fs version",
      generateTime: currTime,
      generateTimeFmt: currTimeFmt,
      service: settings.serviceType,
@@ -900,10 +1028,10 @@ const splitFourStepsOnEntityMappings = (
      val.decision === "remote_is_created_then_pull" ||
      val.decision === "conflict_created_then_keep_local" ||
      val.decision === "conflict_created_then_keep_remote" ||
-      val.decision === "conflict_created_then_keep_both" ||
+      val.decision === "conflict_created_then_smart_conflict" ||
      val.decision === "conflict_modified_then_keep_local" ||
      val.decision === "conflict_modified_then_keep_remote" ||
-      val.decision === "conflict_modified_then_keep_both"
+      val.decision === "conflict_modified_then_smart_conflict"
    ) {
      if (
        uploadDownloads.length === 0 ||
@@ -966,75 +1094,6 @@ const fullfillMTimeOfRemoteEntityInplace = (
  return remote;
 };

-async function copyFolder(
-  key: string,
-  left: FakeFs,
-  right: FakeFs
-): Promise<Entity> {
-  if (!key.endsWith("/")) {
-    throw Error(`should not call ${key} in copyFolder`);
-  }
-  const statsLeft = await left.stat(key);
-  return await right.mkdir(key, statsLeft.mtimeCli);
-}
-
-async function copyFile(
-  key: string,
-  left: FakeFs,
-  right: FakeFs
-): Promise<Entity> {
-  // console.debug(`copyFile: key=${key}, left=${left.kind}, right=${right.kind}`);
-  if (key.endsWith("/")) {
-    throw Error(`should not call ${key} in copyFile`);
-  }
-  const statsLeft = await left.stat(key);
-  const content = await left.readFile(key);
-
-  if (statsLeft.size === undefined || statsLeft.size === 0) {
-    // some weird bugs on android not returning size. just ignore them
-    statsLeft.size = content.byteLength;
-  } else {
-    if (statsLeft.size !== content.byteLength) {
-      throw Error(
-        `error copying ${left.kind}=>${right.kind}: size not matched`
-      );
-    }
-  }
-
-  if (statsLeft.mtimeCli === undefined) {
-    throw Error(`error copying ${left.kind}=>${right.kind}, no mtimeCli`);
-  }
-
-  // console.debug(`copyFile: about to start right.writeFile`);
-  if (typeof (content as any).transfer === "function") {
-    return await right.writeFile(
-      key,
-      (content as any).transfer(),
-      statsLeft.mtimeCli,
-      statsLeft.mtimeCli /* TODO */
-    );
-  } else {
-    return await right.writeFile(
-      key,
-      content,
-      statsLeft.mtimeCli,
-      statsLeft.mtimeCli /* TODO */
-    );
-  }
-}
-
-async function copyFileOrFolder(
-  key: string,
-  left: FakeFs,
-  right: FakeFs
-): Promise<Entity> {
-  if (key.endsWith("/")) {
-    return await copyFolder(key, left, right);
-  } else {
-    return await copyFile(key, left, right);
-  }
-}
-
 const dispatchOperationToActualV3 = async (
  key: string,
  vaultRandomID: string,
@@ -1042,7 +1101,8 @@ const dispatchOperationToActualV3 = async (
  r: MixedEntity,
  fsLocal: FakeFs,
  fsEncrypt: FakeFsEncrypt,
-  db: InternalDBs
+  db: InternalDBs,
+  conflictAction: ConflictActionType
 ) => {
  // console.debug(
  //   `inside dispatchOperationToActualV3, key=${key}, r=${JSON.stringify(
@@ -1052,7 +1112,20 @@ const dispatchOperationToActualV3 = async (
  //   )}`
  // );
  if (r.decision === "only_history") {
-    clearPrevSyncRecordByVaultAndProfile(db, vaultRandomID, profileID, key);
+    await clearPrevSyncRecordByVaultAndProfile(
+      db,
+      vaultRandomID,
+      profileID,
+      key
+    );
+    if (conflictAction === "smart_conflict") {
+      await clearFileContentHistoryByVaultAndProfile(
+        db,
+        vaultRandomID,
+        profileID,
+        key
+      );
+    }
  } else if (
    r.decision === "local_is_created_too_large_then_do_nothing" ||
    r.decision === "remote_is_created_too_large_then_do_nothing" ||
@@ -1071,12 +1144,34 @@ const dispatchOperationToActualV3 = async (

    if (r.prevSync !== undefined) {
      // if we have prevSync,
-      // we don't need to do anything, because the record is already there!
+      // we don't need to update prevSync, because the record is already there!
+
+      // but we might need to update content, because it's a new feature
+      if (conflictAction === "smart_conflict") {
+        if (isMergable(r.local!)) {
+          const k = await getFileContentHistoryByVaultAndProfile(
+            db,
+            vaultRandomID,
+            profileID,
+            r.local!
+          );
+          if (k === null || k === undefined) {
+            await upsertFileContentHistoryByVaultAndProfile(
+              db,
+              vaultRandomID,
+              profileID,
+              r.local!,
+              await fsLocal.readFile(r.local!.keyRaw)
+            );
+          }
+        }
+      }
    } else {
      // if we don't have prevSync, we use remote entity AND local mtime
      // as if it is "uploaded"
      if (r.remote !== undefined) {
        let entity = r.remote;
+        // TODO: abstract away the dirty hack
        entity = fullfillMTimeOfRemoteEntityInplace(entity, r.local?.mtimeCli);

        if (entity !== undefined) {
@@ -1086,6 +1181,17 @@ const dispatchOperationToActualV3 = async (
            profileID,
            entity
          );
+          if (conflictAction === "smart_conflict") {
+            if (isMergable(entity)) {
+              await upsertFileContentHistoryByVaultAndProfile(
+                db,
+                vaultRandomID,
+                profileID,
+                entity,
+                await fsLocal.readFile(entity.keyRaw)
+              );
+            }
+          }
        }
      }
    }
@@ -1098,7 +1204,12 @@ const dispatchOperationToActualV3 = async (
  ) {
    // console.debug(`before upload in sync, r=${JSON.stringify(r, null, 2)}`);
    const mtimeCli = (await fsLocal.stat(r.key)).mtimeCli!;
-    const entity = await copyFileOrFolder(r.key, fsLocal, fsEncrypt);
+    const { entity, content } = await copyFileOrFolder(
+      r.key,
+      fsLocal,
+      fsEncrypt
+    );
+    // TODO: abstract away the dirty hack
    fullfillMTimeOfRemoteEntityInplace(entity, mtimeCli);
    // console.debug(`after fullfill, entity=${JSON.stringify(entity,null,2)}`)
    await upsertPrevSyncRecordByVaultAndProfile(
@@ -1107,6 +1218,17 @@ const dispatchOperationToActualV3 = async (
      profileID,
      entity
    );
+    if (conflictAction === "smart_conflict") {
+      if (isMergable(entity)) {
+        await upsertFileContentHistoryByVaultAndProfile(
+          db,
+          vaultRandomID,
+          profileID,
+          entity,
+          content!
+        );
+      }
+    }
  } else if (
    r.decision === "remote_is_modified_then_pull" ||
    r.decision === "remote_is_created_then_pull" ||
@@ -1114,10 +1236,14 @@ const dispatchOperationToActualV3 = async (
    r.decision === "conflict_modified_then_keep_remote" ||
    r.decision === "folder_existed_remote_then_also_create_local"
  ) {
+    let e1: Entity | undefined = undefined;
+    let c1: ArrayBuffer | undefined = undefined;
    if (r.key.endsWith("/")) {
      await fsLocal.mkdir(r.key);
    } else {
-      await copyFile(r.key, fsEncrypt, fsLocal);
+      const { entity, content } = await copyFile(r.key, fsEncrypt, fsLocal);
+      e1 = entity;
+      c1 = content;
    }
    await upsertPrevSyncRecordByVaultAndProfile(
      db,
@@ -1125,6 +1251,17 @@ const dispatchOperationToActualV3 = async (
      profileID,
      r.remote!
    );
+    if (conflictAction === "smart_conflict") {
+      if (isMergable(r.remote!)) {
+        await upsertFileContentHistoryByVaultAndProfile(
+          db,
+          vaultRandomID,
+          profileID,
+          r.remote!,
+          c1! // always file, always has real value
+        );
+      }
+    }
  } else if (r.decision === "local_is_deleted_thus_also_delete_remote") {
    // local is deleted, we need to delete remote now
    await fsEncrypt.rm(r.key);
@@ -1134,6 +1271,16 @@ const dispatchOperationToActualV3 = async (
      profileID,
      r.key
    );
+    if (conflictAction === "smart_conflict") {
+      if (isMergable(r.remote!)) {
+        await clearFileContentHistoryByVaultAndProfile(
+          db,
+          vaultRandomID,
+          profileID,
+          r.key
+        );
+      }
+    }
  } else if (r.decision === "remote_is_deleted_thus_also_delete_local") {
    // remote is deleted, we need to delete local now
    await fsLocal.rm(r.key);
@@ -1143,20 +1290,92 @@ const dispatchOperationToActualV3 = async (
      profileID,
      r.key
    );
+    if (conflictAction === "smart_conflict") {
+      if (isMergable(r.local!)) {
+        await clearFileContentHistoryByVaultAndProfile(
+          db,
+          vaultRandomID,
+          profileID,
+          r.key
+        );
+      }
+    }
  } else if (
-    r.decision === "conflict_created_then_keep_both" ||
-    r.decision === "conflict_modified_then_keep_both"
+    r.decision === "conflict_created_then_smart_conflict" ||
+    r.decision === "conflict_modified_then_smart_conflict"
  ) {
-    throw Error(`${r.decision} not implemented yet: ${JSON.stringify(r)}`);
+    // heavy lifting
+    if (isMergable(r.local!, r.remote!)) {
+      const origContent = await getFileContentHistoryByVaultAndProfile(
+        db,
+        vaultRandomID,
+        profileID,
+        r.local!
+      );
+      // console.debug(`we get origContent:`)
+      // console.debug(origContent)
+      const { entity, content } = await mergeFile(
+        r.key,
+        fsLocal,
+        fsEncrypt,
+        origContent
+      );
+      await upsertPrevSyncRecordByVaultAndProfile(
+        db,
+        vaultRandomID,
+        profileID,
+        entity
+      );
+      await upsertFileContentHistoryByVaultAndProfile(
+        db,
+        vaultRandomID,
+        profileID,
+        entity,
+        content
+      );
+    } else {
+      // duplicate the files
+      await clearPrevSyncRecordByVaultAndProfile(
+        db,
+        vaultRandomID,
+        profileID,
+        r.key
+      );
+      const mtimeCli = (await fsLocal.stat(r.key)).mtimeCli!;
+      const { upload, download } = await duplicateFile(
+        r.key,
+        fsLocal,
+        fsEncrypt,
+        async (upload) => {
+          // TODO: abstract away the dirty hack
+          fullfillMTimeOfRemoteEntityInplace(upload, mtimeCli);
+          await upsertPrevSyncRecordByVaultAndProfile(
+            db,
+            vaultRandomID,
+            profileID,
+            upload
+          );
+        },
+        async (download) => {
+          await upsertPrevSyncRecordByVaultAndProfile(
+            db,
+            vaultRandomID,
+            profileID,
+            download
+          );
+        }
+      );
+    }
  } else if (r.decision === "folder_to_be_created") {
    await fsLocal.mkdir(r.key);
-    const entity = await copyFolder(r.key, fsLocal, fsEncrypt);
+    const { entity } = await copyFolder(r.key, fsLocal, fsEncrypt);
    await upsertPrevSyncRecordByVaultAndProfile(
      db,
      vaultRandomID,
      profileID,
      entity
    );
+    // no need to record file content for folder here
  } else if (
    r.decision === "folder_to_be_deleted_on_both" ||
    r.decision === "folder_to_be_deleted_on_local" ||
@@ -1180,6 +1399,7 @@ const dispatchOperationToActualV3 = async (
      profileID,
      r.key
    );
+    // no need to record file content for folder here
  } else {
    throw Error(`don't know how to dispatch decision: ${JSON.stringify(r)}`);
  }
@@ -1196,6 +1416,8 @@ export const doActualSync = async (
  getProtectModifyPercentageErrorStrFunc: any,
  db: InternalDBs,
  profiler: Profiler | undefined,
+  conflictAction: ConflictActionType,
+  triggerSource: SyncTriggerSourceType,
  callbackSyncProcess?: any
 ) => {
  profiler?.addIndent();
@@ -1303,13 +1525,16 @@ export const doActualSync = async (
          // );

          await callbackSyncProcess?.(
+            triggerSource,
            realCounter,
            realTotalCount,
            key,
            val.decision
          );

-          realCounter += 1;
+          if (val.change === undefined || val.change) {
+            realCounter += 1;
+          }

          await dispatchOperationToActualV3(
            key,
@@ -1318,7 +1543,8 @@ export const doActualSync = async (
            val,
            fsLocal,
            fsEncrypt,
-            db
+            db,
+            conflictAction
          );

          // console.debug(`finished ${key}`);
@@ -1381,6 +1607,8 @@ export async function syncer(
  vaultRandomID: string,
  configDir: string,
  settings: RemotelySavePluginSettings,
+  pluginVersion: string,
+  configSaver: () => Promise<any>,
  getProtectModifyPercentageErrorStrFunc: any,
  markIsSyncingFunc: (isSyncing: boolean) => void,
  notifyFunc?: (s: SyncTriggerSourceType, step: number) => Promise<any>,
@@ -1397,17 +1625,22 @@ export async function syncer(
  markIsSyncingFunc(true);

  let everythingOk = true;
-
-  let step = 0; // dry mode only
-  await notifyFunc?.(triggerSource, step);
-
-  step = 1;
-  await notifyFunc?.(triggerSource, step);
-  await ribboonFunc?.(triggerSource, step);
-  await statusBarFunc?.(triggerSource, step, everythingOk);
-  profiler?.insert("start big sync func");
+  let step = 0;

  try {
+    // check pro feature
+    // if anything goes wrong, it will throw
+    await checkProRunnableAndFixInplace(settings, pluginVersion, configSaver);
+
+    // try mode?
+    await notifyFunc?.(triggerSource, step);
+
+    step = 1;
+    await notifyFunc?.(triggerSource, step);
+    await ribboonFunc?.(triggerSource, step);
+    await statusBarFunc?.(triggerSource, step, everythingOk);
+    profiler?.insert("start big sync func");
+
    step = 2;
    await notifyFunc?.(triggerSource, step);
    await ribboonFunc?.(triggerSource, step);
@@ -1474,7 +1707,6 @@ export async function syncer(

    mixedEntityMappings = await getSyncPlanInplace(
      mixedEntityMappings,
-      settings.howToCleanEmptyFolder ?? "clean_both",
      settings.skipSizeLargerThan ?? -1,
      settings.conflictAction ?? "keep_newer",
      settings.syncDirection ?? "bidirectional",
@@ -1514,6 +1746,8 @@ export async function syncer(
        getProtectModifyPercentageErrorStrFunc,
        db,
        profiler,
+        settings.conflictAction ?? "keep_newer",
+        triggerSource,
        callbackSyncProcess
      );
      profiler?.insert(`finish step${step} (actual sync)`);
@@ -0,0 +1,307 @@
+//////////////////////////////////////////////
+// all types
+// https://yandex.com/dev/disk-api/doc/en/reference/response-objects
+//////////////////////////////////////////////
+
+export interface Link {
+  href: string;
+  method: string;
+  templated: boolean;
+}
+
+export interface Resource {
+  antivirus_status?: string;
+  public_key?: string;
+  _embedded?: ResourceList;
+  name?: string;
+  created?: string;
+  custom_properties?: Record<string, string>;
+  public_url?: string;
+  origin_path?: string;
+  modified?: string;
+  path?: string;
+  md5?: string;
+  sha256?: string;
+  file?: string;
+  type?: "dir" | "file";
+  mime_type?: string;
+  size?: number;
+  exif?: Record<any, any>;
+}
+
+type SortType = string;
+
+export interface ResourceList {
+  sort?: SortType;
+  public_key?: string;
+  items?: Resource[];
+  path?: string;
+  limit?: number;
+  offset?: number;
+  total?: number;
+}
+
+export interface FilesResourceList {
+  items: Resource[];
+  limit: number;
+  offset: number;
+}
+
+export interface LastUploadedResourceList {
+  items: Resource[];
+  limit: number;
+}
+
+export interface PublicResourcesList {
+  items: Resource[];
+  type: "dir" | "file";
+  limit: number;
+  offset: number;
+}
+
+export interface Disk {
+  trash_size: number;
+  total_space: number;
+  used_space: number;
+  system_folders: {
+    applications: string;
+    downloads: string;
+  };
+}
+
+export interface Operation {
+  status: "success" | "failed" | "in-progress";
+}
+
+export interface ErrorResponse {
+  error: string;
+  description: string;
+  message?: string;
+}
+
+//////////////////////////////////////////////
+// api
+// https://yandex.com/dev/disk-api/doc/en/
+//////////////////////////////////////////////
+
+export class YandexApi {
+  accessToken: string;
+  apiVersion: number;
+  host: string;
+  constructor(accessToken: string) {
+    this.accessToken = accessToken;
+    this.apiVersion = 1;
+    this.host = `https://cloud-api.yandex.net`;
+  }
+
+  async _api(
+    method: string,
+    endPoint: string,
+    returnType: "json" | "arrayBuffer" | "raw",
+    queryParams?: Record<string, string>,
+    body?: any,
+    requestContentType?: string
+  ) {
+    let p = "";
+    if (queryParams !== undefined) {
+      p = `?${new URLSearchParams(queryParams)}`;
+    }
+
+    const fullUrl = `${this.host}/v${this.apiVersion}/${endPoint}${p}`;
+    // console.debug(`method: ${method}, fullUrl: ${fullUrl}`)
+    const headers: HeadersInit = {
+      Authorization: `OAuth ${this.accessToken}`,
+    };
+    if (requestContentType !== undefined) {
+      headers["Content-Type"] = requestContentType;
+    }
+    const r = await fetch(fullUrl, {
+      method: method,
+      headers: headers,
+      body: body,
+    });
+    // console.debug(r)
+
+    if (r.status >= 200 && r.status < 300) {
+      if (returnType === "json") {
+        return await r.json();
+      }
+      if (returnType === "arrayBuffer") {
+        return await r.arrayBuffer();
+      }
+      if (returnType === "raw") {
+        return r;
+      }
+    } else {
+      throw Error(JSON.stringify((await r.json()) as ErrorResponse));
+    }
+  }
+
+  async disk() {
+    return (await this._api("GET", "disk/", "json")) as Disk;
+  }
+
+  async diskResources(
+    path: string,
+    fields?: string[],
+    limit?: number,
+    offset?: number
+  ) {
+    const params: Record<string, string> = {
+      path: path,
+    };
+    if (fields !== undefined) {
+      params["fields"] = fields.join(",");
+    }
+    if (limit !== undefined) {
+      params["limit"] = `${limit}`;
+    }
+    if (offset !== undefined) {
+      params["offset"] = `${offset}`;
+    }
+
+    return (await this._api(
+      "GET",
+      "disk/resources",
+      "json",
+      params
+    )) as Resource;
+  }
+
+  async diskResourcesFiles(fields?: string[], limit?: number, offset?: number) {
+    const params: Record<string, string> = {};
+    if (fields !== undefined) {
+      params["fields"] = fields.join(",");
+    }
+    if (limit !== undefined) {
+      params["limit"] = `${limit}`;
+    }
+    if (offset !== undefined) {
+      params["offset"] = `${offset}`;
+    }
+    return (await this._api(
+      "GET",
+      "disk/resources/files",
+      "json",
+      params
+    )) as FilesResourceList;
+  }
+
+  async diskResourcesPatch(
+    path: string,
+    custom_properties: Record<string, string | null>,
+    fields?: string[]
+  ) {
+    const params: Record<string, string> = {
+      path: path,
+    };
+    if (fields !== undefined) {
+      params["fields"] = fields.join(",");
+    }
+    return (await this._api(
+      "PATCH",
+      "disk/resources",
+      "json",
+      params,
+      JSON.stringify({
+        custom_properties: custom_properties,
+      }),
+      "application/json"
+    )) as Resource;
+  }
+
+  async diskResoucesUpload(
+    path: string,
+    content: ArrayBuffer,
+    overwrite?: boolean
+  ) {
+    const params: Record<string, string> = {
+      path: path,
+      overwrite: `${overwrite ?? false}`,
+    };
+    const link = (await this._api(
+      "GET",
+      "disk/resources/upload",
+      "json",
+      params
+    )) as Link;
+
+    if (link.templated) {
+      throw Error(
+        `do not know how to deal with upload link with templated: ${JSON.stringify(
+          link
+        )}`
+      );
+    }
+
+    const rsp = await fetch(link.href, {
+      method: link.method,
+      body: content,
+    });
+    if (rsp.status === 200 || rsp.status === 201 || rsp.status === 202) {
+      return true;
+    } else {
+      throw Error(`upload failed. status=${rsp.status}, link=${link.href}`);
+    }
+  }
+
+  async diskResoucesDownload(path: string) {
+    const params: Record<string, string> = {
+      path: path,
+    };
+    const link = (await this._api(
+      "GET",
+      "disk/resources/download",
+      "json",
+      params
+    )) as Link;
+
+    if (link.templated) {
+      throw Error(
+        `do not know how to deal with download link with templated: ${JSON.stringify(
+          link
+        )}`
+      );
+    }
+
+    const rsp = await fetch(link.href, {
+      method: link.method,
+    });
+    if (rsp.status === 200 || rsp.status === 201 || rsp.status === 202) {
+      return await rsp.arrayBuffer();
+    } else {
+      throw Error(`download failed. status=${rsp.status}, link=${link.href}`);
+    }
+  }
+
+  async diskResourcesDelete(path: string, permanently?: boolean) {
+    const params: Record<string, string> = {
+      path: path,
+      permanently: `${permanently ?? false}`,
+    };
+    const rsp = (await this._api(
+      "DELETE",
+      "disk/resources",
+      "raw",
+      params
+    )) as Response;
+
+    if (rsp.status === 204) {
+      return;
+    }
+    if (rsp.status === 202) {
+      return (await rsp.json()) as Link;
+    }
+    throw Error(`do not know how to deal with delete response ${rsp}`);
+  }
+
+  async diskResourcesPut(path: string, fields?: string[]) {
+    const params: Record<string, string> = {
+      path: path,
+    };
+    if (fields !== undefined) {
+      params["fields"] = fields.join(",");
+    }
+    return (await this._api("PUT", "disk/resources", "json", params)) as Link;
+  }
+}
@@ -0,0 +1,68 @@
+import { deepStrictEqual, rejects, throws } from "assert";
+import { getFileRename } from "../src/conflictLogic";
+
+describe("New name is generated", () => {
+  it("should throw for empty file", async () => {
+    for (const key of ["", "/", ".", ".."]) {
+      throws(() => getFileRename(key));
+    }
+  });
+
+  it("should throw for folder", async () => {
+    for (const key of ["sss/", "ssss/yyy/"]) {
+      throws(() => getFileRename(key));
+    }
+  });
+
+  it("should correctly get no ext files renamed", async () => {
+    deepStrictEqual(getFileRename("abc"), "abc.dup");
+
+    deepStrictEqual(getFileRename("xxxx/yyyy/abc"), "xxxx/yyyy/abc.dup");
+  });
+
+  it("should correctly get dot files renamed", async () => {
+    deepStrictEqual(getFileRename(".abc"), ".abc.dup");
+
+    deepStrictEqual(getFileRename("xxxx/yyyy/.efg"), "xxxx/yyyy/.efg.dup");
+
+    deepStrictEqual(getFileRename("xxxx/yyyy/hij."), "xxxx/yyyy/hij.dup");
+  });
+
+  it("should correctly get normal files renamed", async () => {
+    deepStrictEqual(getFileRename("abc.efg"), "abc.dup.efg");
+
+    deepStrictEqual(
+      getFileRename("xxxx/yyyy/abc.efg"),
+      "xxxx/yyyy/abc.dup.efg"
+    );
+
+    deepStrictEqual(
+      getFileRename("xxxx/yyyy/abc.tar.gz"),
+      "xxxx/yyyy/abc.tar.dup.gz"
+    );
+
+    deepStrictEqual(
+      getFileRename("xxxx/yyyy/.abc.efg"),
+      "xxxx/yyyy/.abc.dup.efg"
+    );
+  });
+
+  it("should correctly get duplicated files renamed again", async () => {
+    deepStrictEqual(getFileRename("abc.dup"), "abc.dup.dup");
+
+    deepStrictEqual(
+      getFileRename("xxxx/yyyy/.abc.dup"),
+      "xxxx/yyyy/.abc.dup.dup"
+    );
+
+    deepStrictEqual(
+      getFileRename("xxxx/yyyy/abc.dup.md"),
+      "xxxx/yyyy/abc.dup.dup.md"
+    );
+
+    deepStrictEqual(
+      getFileRename("xxxx/yyyy/.abc.dup.md"),
+      "xxxx/yyyy/.abc.dup.dup.md"
+    );
+  });
+});
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
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+      and distribution as defined by Sections 1 through 9 of this document.
+
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+
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
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+
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+
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+      form, that is based on (or derived from) the Work and for which the
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+      of this License, Derivative Works shall not include works that remain
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+
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+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
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+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
@@ -0,0 +1,9 @@
+# Main Basic Source
+
+## What?
+
+The main basic source code for Remotely Save.
+
+## License
+
+The codes or files or subfolders inside the current folder (`src` in the repo), are released under "open source" license: "Apache License, version 2.0".
@@ -3,6 +3,14 @@
 * To avoid circular dependency.
 */

+import type {
+  BoxConfig,
+  GoogleDriveConfig,
+  KoofrConfig,
+  PCloudConfig,
+  ProConfig,
+  YandexDiskConfig,
+} from "../pro/src/baseTypesPro";
 import type { LangTypeAndAuto } from "./i18n";

 export const DEFAULT_CONTENT_TYPE = "application/octet-stream";
@@ -12,13 +20,23 @@ export type SUPPORTED_SERVICES_TYPE =
  | "webdav"
  | "dropbox"
  | "onedrive"
-  | "webdis";
+  | "webdis"
+  | "googledrive"
+  | "box"
+  | "pcloud"
+  | "yandexdisk"
+  | "koofr";

 export type SUPPORTED_SERVICES_TYPE_WITH_REMOTE_BASE_DIR =
  | "webdav"
  | "dropbox"
  | "onedrive"
-  | "webdis";
+  | "webdis"
+  | "googledrive"
+  | "box"
+  | "pcloud"
+  | "yandexdisk"
+  | "koofr";

 export interface S3Config {
  s3Endpoint: string;
@@ -102,7 +120,9 @@ export interface WebdisConfig {
 export type SyncDirectionType =
  | "bidirectional"
  | "incremental_pull_only"
-  | "incremental_push_only";
+  | "incremental_push_only"
+  | "incremental_pull_and_delete_only"
+  | "incremental_push_and_delete_only";

 export type CipherMethodType = "rclone-base64" | "openssl-base64" | "unknown";

@@ -112,7 +132,12 @@ export type QRExportType =
  | "dropbox"
  | "onedrive"
  | "webdav"
-  | "webdis";
+  | "webdis"
+  | "googledrive"
+  | "box"
+  | "pcloud"
+  | "yandexdisk"
+  | "koofr";

 export interface ProfilerConfig {
  enablePrinting?: boolean;
@@ -125,6 +150,12 @@ export interface RemotelySavePluginSettings {
  dropbox: DropboxConfig;
  onedrive: OnedriveConfig;
  webdis: WebdisConfig;
+  googledrive: GoogleDriveConfig;
+  box: BoxConfig;
+  pcloud: PCloudConfig;
+  yandexdisk: YandexDiskConfig;
+  koofr: KoofrConfig;
+
  password: string;
  serviceType: SUPPORTED_SERVICES_TYPE;
  currLogLevel?: string;
@@ -142,7 +173,6 @@ export interface RemotelySavePluginSettings {
  enableStatusBarInfo?: boolean;
  deleteToWhere?: "system" | "obsidian";
  conflictAction?: ConflictActionType;
-  howToCleanEmptyFolder?: EmptyFolderCleanType;

  protectModifyPercentage?: number;
  syncDirection?: SyncDirectionType;
@@ -155,6 +185,8 @@ export interface RemotelySavePluginSettings {

  profiler?: ProfilerConfig;

+  pro?: ProConfig;
+
  /**
   * @deprecated
   */
@@ -169,6 +201,11 @@ export interface RemotelySavePluginSettings {
   * @deprecated
   */
  logToDB?: boolean;
+
+  /**
+   * @deprecated
+   */
+  howToCleanEmptyFolder?: EmptyFolderCleanType;
 }

 export const COMMAND_URI = "remotely-save";
@@ -188,7 +225,10 @@ export const OAUTH2_FORCE_EXPIRE_MILLISECONDS = 1000 * 60 * 60 * 24 * 80;

 export type EmptyFolderCleanType = "skip" | "clean_both";

-export type ConflictActionType = "keep_newer" | "keep_larger" | "rename_both";
+export type ConflictActionType =
+  | "keep_newer"
+  | "keep_larger"
+  | "smart_conflict";

 export type DecisionTypeForMixedEntity =
  | "only_history"
@@ -203,11 +243,11 @@ export type DecisionTypeForMixedEntity =
  | "remote_is_deleted_thus_also_delete_local"
  | "conflict_created_then_keep_local"
  | "conflict_created_then_keep_remote"
-  | "conflict_created_then_keep_both"
+  | "conflict_created_then_smart_conflict"
  | "conflict_created_then_do_nothing"
  | "conflict_modified_then_keep_local"
  | "conflict_modified_then_keep_remote"
-  | "conflict_modified_then_keep_both"
+  | "conflict_modified_then_smart_conflict"
  | "folder_existed_both_then_do_nothing"
  | "folder_existed_local_then_also_create_remote"
  | "folder_existed_remote_then_also_create_local"
@@ -0,0 +1,60 @@
+import type { FakeFs } from "./fsAll";
+
+export async function copyFolder(key: string, left: FakeFs, right: FakeFs) {
+  if (!key.endsWith("/")) {
+    throw Error(`should not call ${key} in copyFolder`);
+  }
+  const statsLeft = await left.stat(key);
+  const entity = await right.mkdir(key, statsLeft.mtimeCli);
+  return {
+    entity: entity,
+    content: undefined,
+  };
+}
+
+export async function copyFile(key: string, left: FakeFs, right: FakeFs) {
+  // console.debug(`copyFile: key=${key}, left=${left.kind}, right=${right.kind}`);
+  if (key.endsWith("/")) {
+    throw Error(`should not call ${key} in copyFile`);
+  }
+  const statsLeft = await left.stat(key);
+  const content = await left.readFile(key);
+
+  if (statsLeft.size === undefined || statsLeft.size === 0) {
+    // some weird bugs on android not returning size. just ignore them
+    statsLeft.size = content.byteLength;
+  } else {
+    if (statsLeft.size !== content.byteLength) {
+      throw Error(
+        `error copying ${left.kind}=>${right.kind}: size not matched`
+      );
+    }
+  }
+
+  if (statsLeft.mtimeCli === undefined) {
+    throw Error(`error copying ${left.kind}=>${right.kind}, no mtimeCli`);
+  }
+
+  // console.debug(`copyFile: about to start right.writeFile`);
+  return {
+    entity: await right.writeFile(
+      key,
+      content,
+      statsLeft.mtimeCli,
+      statsLeft.mtimeCli /* TODO */
+    ),
+    content: content,
+  };
+}
+
+export async function copyFileOrFolder(
+  key: string,
+  left: FakeFs,
+  right: FakeFs
+) {
+  if (key.endsWith("/")) {
+    return await copyFolder(key, left, right);
+  } else {
+    return await copyFile(key, left, right);
+  }
+}
@@ -1,5 +1,6 @@
 import type { Vault } from "obsidian";

+import type { SyncPlanType } from "../pro/src/sync";
 import {
  DEFAULT_DEBUG_FOLDER,
  DEFAULT_PROFILER_RESULT_FILE_PREFIX,
@@ -11,7 +12,6 @@ import {
 } from "./localdb";
 import type { InternalDBs } from "./localdb";
 import { mkdirpInVault } from "./misc";
-import type { SyncPlanType } from "./sync";

 const getSubsetOfSyncPlan = (x: string, onlyChange: boolean) => {
  if (!onlyChange) {
@@ -13,6 +13,7 @@ export abstract class FakeFs {
    ctime: number
  ): Promise<Entity>;
  abstract readFile(key: string): Promise<ArrayBuffer>;
+  abstract rename(key1: string, key2: string): Promise<void>;
  abstract rm(key: string): Promise<void>;
  abstract checkConnect(callbackFunc?: any): Promise<boolean>;
  abstract getUserDisplayName(): Promise<string>;
@@ -695,6 +695,25 @@ export class FakeFsDropbox extends FakeFs {
    }
  }

+  async rename(key1: string, key2: string): Promise<void> {
+    const remoteFileName1 = getDropboxPath(key1, this.remoteBaseDir);
+    const remoteFileName2 = getDropboxPath(key2, this.remoteBaseDir);
+    await this._init();
+    try {
+      await retryReq(
+        () =>
+          this.dropbox.filesMoveV2({
+            from_path: remoteFileName1,
+            to_path: remoteFileName2,
+          }),
+        `${key1}=>${key2}` // just a hint here
+      );
+    } catch (err) {
+      console.error("some error while moving");
+      console.error(err);
+    }
+  }
+
  async rm(key: string): Promise<void> {
    if (key === "/") {
      return;
@@ -1,7 +1,7 @@
 import type { CipherMethodType, Entity } from "./baseTypes";
 import * as openssl from "./encryptOpenSSL";
 import * as rclone from "./encryptRClone";
-import { isVaildText } from "./misc";
+import { isSpecialFolderNameToSkip, isVaildText } from "./misc";

 import cloneDeep from "lodash/cloneDeep";
 import { FakeFs } from "./fsAll";
@@ -189,6 +189,10 @@ export class FakeFsEncrypt extends FakeFs {
      return res;
    } else {
      for (const innerEntity of innerWalkResult) {
+        if (isSpecialFolderNameToSkip(innerEntity.keyRaw, [])) {
+          continue;
+        }
+
        const key = await this._decryptName(innerEntity.keyRaw);
        const size = key.endsWith("/") ? 0 : undefined;
        res.push({
@@ -356,6 +360,31 @@ export class FakeFsEncrypt extends FakeFs {
    }
  }

+  async rename(key1: string, key2: string): Promise<void> {
+    if (!this.hasCacheMap) {
+      throw new Error("You have to build the cacheMap firstly for readFile");
+    }
+    let key1Enc = this.cacheMapOrigToEnc[key1];
+    if (key1Enc === undefined) {
+      if (this.isPasswordEmpty()) {
+        key1Enc = key1;
+      } else {
+        key1Enc = await this._encryptName(key1);
+      }
+      this.cacheMapOrigToEnc[key1] = key1Enc;
+    }
+    let key2Enc = this.cacheMapOrigToEnc[key2];
+    if (key2Enc === undefined) {
+      if (this.isPasswordEmpty()) {
+        key2Enc = key2;
+      } else {
+        key2Enc = await this._encryptName(key2);
+      }
+      this.cacheMapOrigToEnc[key2] = key2Enc;
+    }
+    return await this.innerFs.rename(key1Enc, key2Enc);
+  }
+
  async rm(key: string): Promise<void> {
    if (!this.hasCacheMap) {
      throw new Error("You have to build the cacheMap firstly for rm");
@@ -1,3 +1,8 @@
+import { FakeFsBox } from "../pro/src/fsBox";
+import { FakeFsGoogleDrive } from "../pro/src/fsGoogleDrive";
+import { FakeFsKoofr } from "../pro/src/fsKoofr";
+import { FakeFsPCloud } from "../pro/src/fsPCloud";
+import { FakeFsYandexDisk } from "../pro/src/fsYandexDisk";
 import type { RemotelySavePluginSettings } from "./baseTypes";
 import type { FakeFs } from "./fsAll";
 import { FakeFsDropbox } from "./fsDropbox";
@@ -41,6 +46,28 @@ export function getClient(
        vaultName,
        saveUpdatedConfigFunc
      );
+    case "googledrive":
+      return new FakeFsGoogleDrive(
+        settings.googledrive,
+        vaultName,
+        saveUpdatedConfigFunc
+      );
+    case "box":
+      return new FakeFsBox(settings.box, vaultName, saveUpdatedConfigFunc);
+    case "pcloud":
+      return new FakeFsPCloud(
+        settings.pcloud,
+        vaultName,
+        saveUpdatedConfigFunc
+      );
+    case "yandexdisk":
+      return new FakeFsYandexDisk(
+        settings.yandexdisk,
+        vaultName,
+        saveUpdatedConfigFunc
+      );
+    case "koofr":
+      return new FakeFsKoofr(settings.koofr, vaultName, saveUpdatedConfigFunc);
    default:
      throw Error(`cannot init client for serviceType=${settings.serviceType}`);
  }
@@ -43,8 +43,13 @@ export class FakeFsLocal extends FakeFs {
    for (const entry of localTAbstractFiles) {
      let r: Entity | undefined = undefined;
      let key = entry.path;
+      if (key.startsWith("/")) {
+        // why?
+        // just remove leading slash /
+        key = key.slice(1);
+      }

-      if (entry.path === "/") {
+      if (entry.path === "/" || entry.path === "") {
        // ignore
        continue;
      } else if (entry instanceof TFile) {
@@ -61,15 +66,15 @@ export class FakeFsLocal extends FakeFs {
          );
        }
        r = {
-          key: entry.path, // local always unencrypted
-          keyRaw: entry.path,
+          key: key, // local always unencrypted
+          keyRaw: key,
          mtimeCli: mtimeLocal,
          mtimeSvr: mtimeLocal,
          size: entry.stat.size, // local always unencrypted
          sizeRaw: entry.stat.size,
        };
      } else if (entry instanceof TFolder) {
-        key = `${entry.path}/`;
+        key = `${key}/`;
        r = {
          key: key,
          keyRaw: key,
@@ -145,6 +150,7 @@ export class FakeFsLocal extends FakeFs {
  ): Promise<Entity> {
    await this.vault.adapter.writeBinary(key, content, {
      mtime: mtime,
+      ctime: ctime,
    });
    return await this.stat(key);
  }
@@ -153,6 +159,10 @@ export class FakeFsLocal extends FakeFs {
    return await this.vault.adapter.readBinary(key);
  }

+  async rename(key1: string, key2: string): Promise<void> {
+    return await this.vault.adapter.rename(key1, key2);
+  }
+
  async rm(key: string): Promise<void> {
    if (this.deleteToWhere === "obsidian") {
      await this.vault.adapter.trashLocal(key);
@@ -38,6 +38,10 @@ export class FakeFsMock extends FakeFs {
    throw new Error("Method not implemented.");
  }

+  async rename(key1: string, key2: string): Promise<void> {
+    throw new Error("Method not implemented.");
+  }
+
  async rm(key: string): Promise<void> {
    throw new Error("Method not implemented.");
  }
@@ -913,7 +913,8 @@ export class FakeFsOnedrive extends FakeFs {
      `${key}?$select=@microsoft.graph.downloadUrl`
    );
    const downloadUrl: string = rsp["@microsoft.graph.downloadUrl"];
-    if (VALID_REQURL) {
+    // biome-ignore lint/correctness/noConstantCondition: <explanation>
+    if (false /*VALID_REQURL*/) {
      const content = (
        await requestUrl({
          url: downloadUrl,
@@ -923,11 +924,25 @@ export class FakeFsOnedrive extends FakeFs {
      return content;
    } else {
      // cannot set no-cache here, will have cors error
-      const content = await (await fetch(downloadUrl)).arrayBuffer();
+      const content = await (
+        await fetch(downloadUrl, { cache: "no-store" })
+      ).arrayBuffer();
      return content;
    }
  }

+  async rename(key1: string, key2: string): Promise<void> {
+    if (key1 === "" || key1 === "/" || key2 === "" || key2 === "/") {
+      return;
+    }
+    const remoteFileName1 = getOnedrivePath(key1, this.remoteBaseDir);
+    const remoteFileName2 = getOnedrivePath(key2, this.remoteBaseDir);
+    await this._init();
+    await this._patchJson(remoteFileName1, {
+      name: remoteFileName2,
+    });
+  }
+
  async rm(key: string): Promise<void> {
    if (key === "" || key === "/") {
      return;
@@ -746,6 +746,10 @@ export class FakeFsS3 extends FakeFs {
    return bodyContents;
  }

+  async rename(key1: string, key2: string): Promise<void> {
+    throw Error(`rename not implemented for s3`);
+  }
+
  async rm(key: string): Promise<void> {
    if (key === "/") {
      return;
@@ -776,13 +780,6 @@ export class FakeFsS3 extends FakeFs {

  async checkConnect(callbackFunc?: any): Promise<boolean> {
    try {
-      // TODO: no universal way now, just check this in connectivity
-      if (Platform.isIosApp && this.s3Config.s3Endpoint.startsWith("http://")) {
-        throw Error(
-          `Your s3 endpoint could only be https, not http, because of the iOS restriction.`
-        );
-      }
-
      // const results = await this.s3Client.send(
      //   new HeadBucketCommand({ Bucket: this.s3Config.s3BucketName })
      // );
@@ -66,24 +66,11 @@ if (VALID_REQURL) {
      const p: RequestUrlParam = {
        url: options.url,
        method: options.method,
-        // body: options.data as string | ArrayBuffer,
+        body: options.data as string | ArrayBuffer,
        headers: transformedHeaders,
        contentType: reqContentType,
        throw: false,
      };
-      if (
-        options.data === undefined ||
-        options.data === null ||
-        isString(options.data)
-      ) {
-        p.body = options.data;
-      } else {
-        if (typeof (options.data as any).transfer === "function") {
-          p.body = (options.data as any).transfer();
-        } else {
-          p.body = options.data as ArrayBuffer;
-        }
-      }

      let r = await requestUrl(p);

@@ -259,12 +246,6 @@ export class FakeFsWebdav extends FakeFs {
      return;
    }

-    if (Platform.isIosApp && !this.webdavConfig.address.startsWith("https")) {
-      throw Error(
-        `Your webdav address could only be https, not http, because of the iOS restriction.`
-      );
-    }
-
    const headers = {
      "Cache-Control": "no-cache",
    };
@@ -330,9 +311,9 @@ export class FakeFsWebdav extends FakeFs {
   */
  _getnextcloudUploadServerAddress = () => {
    let k = this.webdavConfig.address;
-    if (k.endsWith('/')) {
+    if (k.endsWith("/")) {
      // no tailing slash
-      k = k.substring(0, k.length-1);
+      k = k.substring(0, k.length - 1);
    }
    const s = k.split("/");
    if (
@@ -797,6 +778,16 @@ export class FakeFsWebdav extends FakeFs {
    throw Error(`unexpected file content result with type ${typeof buff}`);
  }

+  async rename(key1: string, key2: string): Promise<void> {
+    if (key1 === "/" || key2 === "/") {
+      return;
+    }
+    const remoteFileName1 = getWebdavPath(key1, this.remoteBaseDir);
+    const remoteFileName2 = getWebdavPath(key2, this.remoteBaseDir);
+    await this._init();
+    await this.client.moveFile(remoteFileName1, remoteFileName2);
+  }
+
  async rm(key: string): Promise<void> {
    if (key === "/") {
      return;
@@ -230,6 +230,15 @@ export class FakeFsWebdis extends FakeFs {
    return rsp;
  }

+  async rename(key1: string, key2: string): Promise<void> {
+    const fullKey1 = getWebdisPath(key1, this.remoteBaseDir);
+    const fullKey2 = getWebdisPath(key2, this.remoteBaseDir);
+    const commandContent = `RENAME/${fullKey1}:content/${fullKey2}:content`;
+    await this._fetchCommand("POST", commandContent);
+    const commandMeta = `RENAME/${fullKey1}:meta/${fullKey2}:meta`;
+    await this._fetchCommand("POST", commandMeta);
+  }
+
  async rm(key: string): Promise<void> {
    const fullKey = getWebdisPath(key, this.remoteBaseDir);
    const command = `DEL/${fullKey}:meta/${fullKey}:content`;
@@ -1,7 +1,11 @@
+import merge from "lodash/merge";
 import Mustache from "mustache";
 import { moment } from "obsidian";

-import { LANGS } from "./langs";
+import { LANGS as LANGS_PRO } from "../pro/src/langs";
+import { LANGS as LANGS_BASIC } from "./langs";
+
+const LANGS = merge(LANGS_BASIC, LANGS_PRO);

 export type LangType = keyof typeof LANGS;
 export type LangTypeAndAuto = LangType | "auto";
@@ -24,6 +24,12 @@ export const exportQrCodeUri = async (
    delete settings2.onedrive;
    delete settings2.webdav;
    delete settings2.webdis;
+    delete settings2.googledrive;
+    delete settings2.box;
+    delete settings2.pcloud;
+    delete settings2.yandexdisk;
+    delete settings2.koofr;
+    delete settings2.pro;
  } else if (exportFields === "s3") {
    settings2 = { s3: cloneDeep(settings.s3) };
  } else if (exportFields === "dropbox") {
@@ -34,6 +40,16 @@ export const exportQrCodeUri = async (
    settings2 = { webdav: cloneDeep(settings.webdav) };
  } else if (exportFields === "webdis") {
    settings2 = { webdis: cloneDeep(settings.webdis) };
+  } else if (exportFields === "googledrive") {
+    settings2 = { googledrive: cloneDeep(settings.googledrive) };
+  } else if (exportFields === "box") {
+    settings2 = { box: cloneDeep(settings.box) };
+  } else if (exportFields === "pcloud") {
+    settings2 = { pcloud: cloneDeep(settings.pcloud) };
+  } else if (exportFields === "yandexdisk") {
+    settings2 = { yandexdisk: cloneDeep(settings.yandexdisk) };
+  } else if (exportFields === "koofr") {
+    settings2 = { koofr: cloneDeep(settings.koofr) };
  }

  delete settings2.vaultRandomID;
@@ -45,20 +45,26 @@

  "command_exportlogsindb": "export logs saved in db",

-  "statusbar_time_years": "Synced {{time}} years ago",
-  "statusbar_time_months": "Synced {{time}} months ago",
-  "statusbar_time_weeks": "Synced {{time}} weeks ago",
-  "statusbar_time_days": "Synced {{time}} days ago",
-  "statusbar_time_hours": "Synced {{time}} hours ago",
-  "statusbar_time_minutes": "Synced {{time}} minutes ago",
-  "statusbar_time_lessminute": "Synced last minute ago",
-  "statusbar_lastsync": "Synced {{time}} ago",
+  "statusbar_sync_source_manual": "Manual: ",
+  "statusbar_sync_source_dry": "Dry: ",
+  "statusbar_sync_source_auto": "Auto: ",
+  "statusbar_sync_source_auto_once_init": "Auto (init): ",
+  "statusbar_sync_source_auto_sync_on_save": "Auto (save): ",
+  "statusbar_sync_status_prefix_success": "Successfully synced ",
+  "statusbar_sync_status_prefix_failed": "Failed to sync ",
+  "statusbar_time_years": "{{time}} years ago",
+  "statusbar_time_months": "{{time}} months ago",
+  "statusbar_time_weeks": "{{time}} weeks ago",
+  "statusbar_time_days": "{{time}} days ago",
+  "statusbar_time_hours": "{{time}} hours ago",
+  "statusbar_time_minutes": "{{time}} minutes ago",
+  "statusbar_time_lessminute": "last minute ago",
+  "statusbar_time_now": "just now",
  "statusbar_syncing": "Syncing...",
-  "statusbar_failed": "Last sync failed",
-  "statusbar_now": "Synced just now",
-  "statusbar_lastsync_label": "Last successful Sync on {{date}}",
+  "statusbar_lastsync_label": "on {{date}}",
  "statusbar_lastsync_never": "Never Synced",
  "statusbar_lastsync_never_label": "Never Synced before",
+
  "modal_password_title": "Hold on and PLEASE READ ON...",
  "modal_password_shortdesc": "If the field is not empty, files would be encrypted locally before being uploaded.\nIf the field is empty, then files would be uploaded without encryption.",
  "modal_password_attn1": "Attention 1/5: The vault name is NOT encrypted. The plugin creates a folder with the vault name on some remote services.",
@@ -277,7 +283,7 @@
  "settings_deletetowhere_system_trash": "system trash (default)",
  "settings_deletetowhere_obsidian_trash": "Obsidian .trash folder",
  "settings_conflictaction": "Action For Conflict",
-  "settings_conflictaction_desc": "If a file is created or modified on both side since last update, it's a conflict event. How to deal with it? This only works for bidirectional sync.",
+  "settings_conflictaction_desc": "<p>If a file is created or modified on both side since last update, it's a conflict event. How to deal with it? This only works for bidirectional sync.</p>",
  "settings_conflictaction_keep_newer": "newer version survives (default)",
  "settings_conflictaction_keep_larger": "larger size version survives",
  "settings_cleanemptyfolder": "Action For Empty Folders",
@@ -292,11 +298,15 @@
  "settings_protectmodifypercentage_custom_desc": "custom",
  "settings_protectmodifypercentage_customfield": "Custom Abort Sync If Modification Above Percentage",
  "settings_protectmodifypercentage_customfield_desc": "You need to enter a number between 0 (inclusive) and 100 (inclusive). Float number is also allowed.",
-  "setting_syncdirection": "Sync Direction",
-  "setting_syncdirection_desc": "Which direction should the plugin sync to? Please be aware that only CHANGED files (based on time and size) are synced regardless any option.",
+
+  "setting_syncdirection": "Sync Direction (experimental)",
+  "setting_syncdirection_desc": "<p>Which direction should the plugin sync to? Please be aware that only CHANGED files (based on time and size) are synced regardless any option.</p><ol><li>Bidirectional: Changes on both side are synced to the other side.</li><li>Incremental Push: Locally created or modifed files are copied to remote.</li><li>Incremental Pull: Remotely created or modifed files are copied to local.</li><li>Incremental Push And Delete: Locally created or modifed files are copied to remote, <strong>and local deletion operations are run on remote too.</strong></li><li>Incremental Pull And Delete: Remotely created or modifed files are copied to local, <strong>and remote deletion operations are run on local too.</strong></li></ol>",
  "setting_syncdirection_bidirectional_desc": "Bidirectional (default)",
-  "setting_syncdirection_incremental_push_only_desc": "Incremental Push Only (aka backup mode)",
-  "setting_syncdirection_incremental_pull_only_desc": "Incremental Pull Only",
+  "setting_syncdirection_incremental_push_only_desc": "Incremental Push (aka backup mode)",
+  "setting_syncdirection_incremental_pull_only_desc": "Incremental Pull",
+  "setting_syncdirection_incremental_push_and_delete_only_desc": "Incremental Push And Delete",
+  "setting_syncdirection_incremental_pull_and_delete_only_desc": "Incremental Pull And Delete",
+
  "settings_enablemobilestatusbar": "Mobile Status Bar (experimental)",
  "settings_enablemobilestatusbar_desc": "By default Obsidian mobile hides status bar. But some users want to show it up. So here is a hack.",
  "settings_importexport": "Import and Export Partial Settings",
@@ -45,20 +45,26 @@
  "command_exportsyncplans_all": "导出同步计划（所有）（export sync plans (all)）",
  "command_exportlogsindb": "从数据库导出终端日志（export logs saved in db）",

-  "statusbar_time_years": "{{time}} 年前同步",
-  "statusbar_time_months": "{{time}} 月前同步",
-  "statusbar_time_weeks": "{{time}} 周前同步",
-  "statusbar_time_days": "{{time}} 天前同步",
-  "statusbar_time_hours": "{{time}} 小时前同步",
-  "statusbar_time_minutes": "{{time}} 分钟前同步",
-  "statusbar_time_lessminute": "一分钟之内同步",
-  "statusbar_lastsync": "上一次同步于：{{time}}",
+  "statusbar_sync_source_manual": "手动：",
+  "statusbar_sync_source_dry": "空跑：",
+  "statusbar_sync_source_auto": "自动：",
+  "statusbar_sync_source_auto_once_init": "启动时自动：",
+  "statusbar_sync_source_auto_sync_on_save": "保存时自动：",
+  "statusbar_sync_status_prefix_success": "同步成功：",
+  "statusbar_sync_status_prefix_failed": "同步失败：",
+  "statusbar_time_years": "{{time}} 年前",
+  "statusbar_time_months": "{{time}} 月前",
+  "statusbar_time_weeks": "{{time}} 周前",
+  "statusbar_time_days": "{{time}} 天前",
+  "statusbar_time_hours": "{{time}} 小时前",
+  "statusbar_time_minutes": "{{time}} 分钟前",
+  "statusbar_time_lessminute": "一分钟之内",
+  "statusbar_time_now": "刚刚",
  "statusbar_syncing": "正在同步",
-  "statusbar_failed": "上次同步失败了",
-  "statusbar_now": "刚同步完",
-  "statusbar_lastsync_label": "上一次同步于：{{date}}",
+  "statusbar_lastsync_label": "日期：{{date}}",
  "statusbar_lastsync_never": "没触发过同步",
  "statusbar_lastsync_never_label": "没触发过同步",
+
  "modal_password_title": "稍等一下，请阅读下文：",
  "modal_password_shortdesc": "如果密码不是空的，那么文件会在上传之前，在本地先用此密码加密。\n如果密码是空的，那么文件会被非加密地上传。",
  "modal_password_attn1": "注意 1/5：库（Vault）名字是不会加密的！本插件会在一些远程存储里创建一个和库名字有着同名的文件夹。",
@@ -291,11 +297,15 @@
  "settings_protectmodifypercentage_custom_desc": "自定义",
  "settings_protectmodifypercentage_customfield": "如果修改超过自定义百分比则中止同步",
  "settings_protectmodifypercentage_customfield_desc": "您需要输入 0（含）~ 100（含）的数字。小数也是可以的。",
-  "setting_syncdirection": "同步方向",
-  "setting_syncdirection_desc": "插件应该向哪里同步？注意每个选项都是只有修改了的文件（基于修改时间和大小判断）才会触发同步动作。",
+
+  "setting_syncdirection": "同步方向（实验性质）",
+  "setting_syncdirection_desc": "<p>W插件应该向哪里同步？注意每个选项都是只有修改了的文件（基于修改时间和大小判断）才会触发同步动作。</p><ol><li>双向同步：一边的变动会同步到另一边。</li><li>增量推送：本地创建或修改的文件会复制到远端。</li><li>增量拉取：远端创建或修改的文件会复制到本地。</li><li>增量推送带删除：本地创建或修改的文件会复制到远端，<strong>本地的删除也会在远端运行。</strong></li><li>增量拉取带删除：远端创建或修改的文件会复制到本地，<strong>远端的删除也会在本地运行。</strong></li></ol>",
  "setting_syncdirection_bidirectional_desc": "双向同步（默认）",
-  "setting_syncdirection_incremental_push_only_desc": "只增量推送（也即：备份模式）",
-  "setting_syncdirection_incremental_pull_only_desc": "只增量拉取",
+  "setting_syncdirection_incremental_push_only_desc": "增量推送（也即：备份模式）",
+  "setting_syncdirection_incremental_pull_only_desc": "增量拉取",
+  "setting_syncdirection_incremental_push_and_delete_only_desc": "增量推送带删除",
+  "setting_syncdirection_incremental_pull_and_delete_only_desc": "增量拉取带删除",
+
  "settings_enablemobilestatusbar": "手机的状态栏（实验性质）",
  "settings_enablemobilestatusbar_desc": "Obsidian 手机版默认隐藏了状态栏。有些用户希望展示它。这里提供了设置选项。",
  "settings_importexport": "导入导出部分设置",
@@ -44,20 +44,26 @@
  "command_exportsyncplans_all": "匯出同步計劃（所有）（export sync plans (all)）",
  "command_exportlogsindb": "從資料庫匯出終端日誌（export logs saved in db）",

-  "statusbar_time_years": "{{time}} 年前同步",
-  "statusbar_time_months": "{{time}} 月前同步",
-  "statusbar_time_weeks": "{{time}} 周前同步",
-  "statusbar_time_days": "{{time}} 天前同步",
-  "statusbar_time_hours": "{{time}} 小時前同步",
-  "statusbar_time_minutes": "{{time}} 分鐘前同步",
-  "statusbar_time_lessminute": "一分鐘之內同步",
-  "statusbar_lastsync": "上一次同步於：{{time}}",
+  "statusbar_sync_source_manual": "手動：",
+  "statusbar_sync_source_dry": "空跑：",
+  "statusbar_sync_source_auto": "自動：",
+  "statusbar_sync_source_auto_once_init": "啟動時自動：",
+  "statusbar_sync_source_auto_sync_on_save": "儲存時自動：",
+  "statusbar_sync_status_prefix_success": "同步成功：",
+  "statusbar_sync_status_prefix_failed": "同步失敗：",
+  "statusbar_time_years": "{{time}} 年前",
+  "statusbar_time_months": "{{time}} 月前",
+  "statusbar_time_weeks": "{{time}} 周前",
+  "statusbar_time_days": "{{time}} 天前",
+  "statusbar_time_hours": "{{time}} 小時前",
+  "statusbar_time_minutes": "{{time}} 分鐘前",
+  "statusbar_time_lessminute": "一分鐘之內",
+  "statusbar_time_now": "剛剛",
  "statusbar_syncing": "正在同步",
-  "statusbar_failed": "上次同步失敗了",
-  "statusbar_now": "剛同步完",
-  "statusbar_lastsync_label": "上一次同步於：{{date}}",
+  "statusbar_lastsync_label": "日期：{{date}}",
  "statusbar_lastsync_never": "沒觸發過同步",
  "statusbar_lastsync_never_label": "沒觸發過同步",
+
  "modal_password_title": "稍等一下，請閱讀下文：",
  "modal_password_shortdesc": "如果密碼不是空的，那麼檔案會在上傳之前，在本地先用此密碼加密。\n如果密碼是空的，那麼檔案會被非加密地上傳。",
  "modal_password_attn1": "注意 1/5：儲存庫（Vault）名字是不會加密的！本外掛會在一些遠端儲存裡建立一個和庫名字有著同名的資料夾。",
@@ -290,11 +296,15 @@
  "settings_protectmodifypercentage_custom_desc": "自定義",
  "settings_protectmodifypercentage_customfield": "如果修改超過自定義百分比則中止同步",
  "settings_protectmodifypercentage_customfield_desc": "您需要輸入 0（含）~ 100（含）的數字。小數也是可以的。",
-  "setting_syncdirection": "同步方向",
-  "setting_syncdirection_desc": "外掛應該向哪裡同步？注意每個選項都是隻有修改了的檔案（基於修改時間和大小判斷）才會觸發同步動作。",
+
+  "setting_syncdirection": "同步方向（實驗性質）",
+  "setting_syncdirection_desc": "<p>W外掛應該向哪裡同步？注意每個選項都是隻有修改了的檔案（基於修改時間和大小判斷）才會觸發同步動作。</p><ol><li>雙向同步：一邊的變動會同步到另一邊。</li><li>增量推送：本地建立或修改的檔案會複製到遠端。</li><li>增量拉取：遠端建立或修改的檔案會複製到本地。</li><li>增量推送帶刪除：本地建立或修改的檔案會複製到遠端，<strong>本地的刪除也會在遠端執行。</strong></li><li>增量拉取帶刪除：遠端建立或修改的檔案會複製到本地，<strong>遠端的刪除也會在本地執行。</strong></li></ol>",
  "setting_syncdirection_bidirectional_desc": "雙向同步（預設）",
-  "setting_syncdirection_incremental_push_only_desc": "只增量推送（也即：備份模式）",
-  "setting_syncdirection_incremental_pull_only_desc": "只增量拉取",
+  "setting_syncdirection_incremental_push_only_desc": "增量推送（也即：備份模式）",
+  "setting_syncdirection_incremental_pull_only_desc": "增量拉取",
+  "setting_syncdirection_incremental_push_and_delete_only_desc": "增量推送帶刪除",
+  "setting_syncdirection_incremental_pull_and_delete_only_desc": "增量拉取帶刪除",
+
  "settings_enablemobilestatusbar": "手機的狀態列（實驗性質）",
  "settings_enablemobilestatusbar_desc": "Obsidian 手機版預設隱藏了狀態列。有些使用者希望展示它。這裡提供了設定選項。",
  "settings_importexport": "匯入匯出部分設定",
@@ -6,9 +6,9 @@ ep2(localforage);
 export type LocalForage = typeof localforage;
 import { nanoid } from "nanoid";

+import type { SyncPlanType } from "../pro/src/sync";
 import type { Entity, SUPPORTED_SERVICES_TYPE } from "./baseTypes";
 import { unixTimeToStr } from "./misc";
-import type { SyncPlanType } from "./sync";

 const DB_VERSION_NUMBER_IN_HISTORY = [20211114, 20220108, 20220326, 20240220];
 export const DEFAULT_DB_VERSION_NUMBER: number = 20240220;
@@ -20,6 +20,7 @@ export const DEFAULT_TBL_LOGGER_OUTPUT = "loggeroutput";
 export const DEFAULT_TBL_SIMPLE_KV_FOR_MISC = "simplekvformisc";
 export const DEFAULT_TBL_PREV_SYNC_RECORDS = "prevsyncrecords";
 export const DEFAULT_TBL_PROFILER_RESULTS = "profilerresults";
+export const DEFAULT_TBL_FILE_CONTENT_HISTORY = "filecontenthistory";

 /**
 * @deprecated
@@ -62,6 +63,7 @@ export interface InternalDBs {
  simpleKVForMiscTbl: LocalForage;
  prevSyncRecordsTbl: LocalForage;
  profilerResultsTbl: LocalForage;
+  fileContentHistoryTbl: LocalForage;

  /**
   * @deprecated
@@ -221,6 +223,11 @@ export const prepareDBs = async (
      name: DEFAULT_DB_NAME,
      storeName: DEFAULT_TBL_SYNC_MAPPING,
    }),
+
+    fileContentHistoryTbl: localforage.createInstance({
+      name: DEFAULT_DB_NAME,
+      storeName: DEFAULT_TBL_FILE_CONTENT_HISTORY,
+    }),
  } as InternalDBs;

  // try to get vaultRandomID firstly
@@ -512,7 +519,27 @@ export const getLastSuccessSyncTimeByVault = async (
 ) => {
  return (await db.simpleKVForMiscTbl.getItem(
    `${vaultRandomID}-lastSuccessSyncMillis`
-  )) as number;
+  )) as number | null | undefined;
+};
+
+export const upsertLastFailedSyncTimeByVault = async (
+  db: InternalDBs,
+  vaultRandomID: string,
+  millis: number
+) => {
+  await db.simpleKVForMiscTbl.setItem(
+    `${vaultRandomID}-lastFailedSyncMillis`,
+    millis
+  );
+};
+
+export const getLastFailedSyncTimeByVault = async (
+  db: InternalDBs,
+  vaultRandomID: string
+) => {
+  return (await db.simpleKVForMiscTbl.getItem(
+    `${vaultRandomID}-lastFailedSyncMillis`
+  )) as number | null | undefined;
 };

 export const upsertPluginVersionByVault = async (
@@ -1,4 +1,7 @@
+// biome-ignore lint/suspicious/noShadowRestrictedNames: <explanation>
+import AggregateError from "aggregate-error";
 import cloneDeep from "lodash/cloneDeep";
+import throttle from "lodash/throttle";
 import { FileText, RefreshCcw, RotateCcw, createElement } from "lucide";
 import {
  Events,
@@ -13,6 +16,45 @@ import {
  requireApiVersion,
  setIcon,
 } from "obsidian";
+import {
+  DEFAULT_PRO_CONFIG,
+  getAndSaveProEmail,
+  getAndSaveProFeatures,
+  sendAuthReq as sendAuthReqPro,
+  setConfigBySuccessfullAuthInplace as setConfigBySuccessfullAuthInplacePro,
+} from "../pro/src/account";
+import {
+  COMMAND_CALLBACK_BOX,
+  COMMAND_CALLBACK_KOOFR,
+  COMMAND_CALLBACK_PCLOUD,
+  COMMAND_CALLBACK_PRO,
+  COMMAND_CALLBACK_YANDEXDISK,
+} from "../pro/src/baseTypesPro";
+import {
+  DEFAULT_BOX_CONFIG,
+  FakeFsBox,
+  sendAuthReq as sendAuthReqBox,
+  setConfigBySuccessfullAuthInplace as setConfigBySuccessfullAuthInplaceBox,
+} from "../pro/src/fsBox";
+import { DEFAULT_GOOGLEDRIVE_CONFIG } from "../pro/src/fsGoogleDrive";
+import {
+  DEFAULT_KOOFR_CONFIG,
+  sendAuthReq as sendAuthReqKoofr,
+  setConfigBySuccessfullAuthInplace as setConfigBySuccessfullAuthInplaceKoofr,
+} from "../pro/src/fsKoofr";
+import {
+  type AuthAllowFirstRes as AuthAllowFirstResPCloud,
+  DEFAULT_PCLOUD_CONFIG,
+  generateAuthUrl as generateAuthUrlPCloud,
+  sendAuthReq as sendAuthReqPCloud,
+  setConfigBySuccessfullAuthInplace as setConfigBySuccessfullAuthInplacePCloud,
+} from "../pro/src/fsPCloud";
+import {
+  DEFAULT_YANDEXDISK_CONFIG,
+  sendAuthReq as sendAuthReqYandexDisk,
+  setConfigBySuccessfullAuthInplace as setConfigBySuccessfullAuthInplaceYandexDisk,
+} from "../pro/src/fsYandexDisk";
+import { syncer } from "../pro/src/sync";
 import type {
  RemotelySavePluginSettings,
  SyncTriggerSourceType,
@@ -25,11 +67,15 @@ import {
 } from "./baseTypes";
 import { API_VER_ENSURE_REQURL_OK } from "./baseTypesObs";
 import { messyConfigToNormal, normalConfigToMessy } from "./configPersist";
+import { exportVaultSyncPlansToFiles } from "./debugMode";
 import {
  DEFAULT_DROPBOX_CONFIG,
  sendAuthReq as sendAuthReqDropbox,
  setConfigBySuccessfullAuthInplace as setConfigBySuccessfullAuthInplaceDropbox,
 } from "./fsDropbox";
+import { FakeFsEncrypt } from "./fsEncrypt";
+import { getClient } from "./fsGetter";
+import { FakeFsLocal } from "./fsLocal";
 import {
  type AccessCodeResponseSuccessfulType,
  DEFAULT_ONEDRIVE_CONFIG,
@@ -38,6 +84,7 @@ import {
 } from "./fsOnedrive";
 import { DEFAULT_S3_CONFIG } from "./fsS3";
 import { DEFAULT_WEBDAV_CONFIG } from "./fsWebdav";
+import { DEFAULT_WEBDIS_CONFIG } from "./fsWebdis";
 import { I18n } from "./i18n";
 import type { LangTypeAndAuto, TransItemType } from "./i18n";
 import { importQrCodeUri } from "./importExport";
@@ -45,25 +92,17 @@ import {
  type InternalDBs,
  clearAllLoggerOutputRecords,
  clearExpiredSyncPlanRecords,
+  getLastFailedSyncTimeByVault,
  getLastSuccessSyncTimeByVault,
  prepareDBs,
+  upsertLastFailedSyncTimeByVault,
  upsertLastSuccessSyncTimeByVault,
  upsertPluginVersionByVault,
 } from "./localdb";
-import { RemotelySaveSettingTab } from "./settings";
-import { SyncAlgoV3Modal } from "./syncAlgoV3Notice";
-
-// biome-ignore lint/suspicious/noShadowRestrictedNames: <explanation>
-import AggregateError from "aggregate-error";
-import throttle from "lodash/throttle";
-import { exportVaultSyncPlansToFiles } from "./debugMode";
-import { FakeFsEncrypt } from "./fsEncrypt";
-import { getClient } from "./fsGetter";
-import { FakeFsLocal } from "./fsLocal";
-import { DEFAULT_WEBDIS_CONFIG } from "./fsWebdis";
 import { changeMobileStatusBar } from "./misc";
 import { DEFAULT_PROFILER_CONFIG, type Profiler } from "./profiler";
-import { syncer } from "./sync";
+import { RemotelySaveSettingTab } from "./settings";
+import { SyncAlgoV3Modal } from "./syncAlgoV3Notice";

 const DEFAULT_SETTINGS: RemotelySavePluginSettings = {
  s3: DEFAULT_S3_CONFIG,
@@ -71,6 +110,11 @@ const DEFAULT_SETTINGS: RemotelySavePluginSettings = {
  dropbox: DEFAULT_DROPBOX_CONFIG,
  onedrive: DEFAULT_ONEDRIVE_CONFIG,
  webdis: DEFAULT_WEBDIS_CONFIG,
+  googledrive: DEFAULT_GOOGLEDRIVE_CONFIG,
+  box: DEFAULT_BOX_CONFIG,
+  pcloud: DEFAULT_PCLOUD_CONFIG,
+  yandexdisk: DEFAULT_YANDEXDISK_CONFIG,
+  koofr: DEFAULT_KOOFR_CONFIG,
  password: "",
  serviceType: "s3",
  currLogLevel: "info",
@@ -97,6 +141,7 @@ const DEFAULT_SETTINGS: RemotelySavePluginSettings = {
  enableMobileStatusBar: false,
  encryptionMethod: "unknown",
  profiler: DEFAULT_PROFILER_CONFIG,
+  pro: DEFAULT_PRO_CONFIG,
 };

 interface OAuth2Info {
@@ -133,6 +178,29 @@ const getIconSvg = () => {
  return res;
 };

+const getStatusBarShortMsgFromSyncSource = (
+  t: (x: TransItemType, vars?: any) => string,
+  s: SyncTriggerSourceType | undefined
+) => {
+  if (s === undefined) {
+    return "";
+  }
+  switch (s) {
+    case "manual":
+      return t("statusbar_sync_source_manual");
+    case "dry":
+      return t("statusbar_sync_source_dry");
+    case "auto":
+      return t("statusbar_sync_source_auto");
+    case "auto_once_init":
+      return t("statusbar_sync_source_auto_once_init");
+    case "auto_sync_on_save":
+      return t("statusbar_sync_source_auto_sync_on_save");
+    default:
+      throw Error(`no translate for ${s}`);
+  }
+};
+
 export default class RemotelySavePlugin extends Plugin {
  settings!: RemotelySavePluginSettings;
  db!: InternalDBs;
@@ -350,17 +418,15 @@ export default class RemotelySavePlugin extends Plugin {
    ) => {
      if (step === 1) {
        // change status to "syncing..." on statusbar
-        this.updateLastSuccessSyncMsg(-1);
+        this.updateLastSyncMsg(s, -1, -1);
      } else if (step === 8 && everythingOk) {
-        const lastSuccessSyncMillis = Date.now();
-        await upsertLastSuccessSyncTimeByVault(
-          this.db,
-          this.vaultRandomID,
-          lastSuccessSyncMillis
-        );
-        this.updateLastSuccessSyncMsg(lastSuccessSyncMillis);
+        const ts = Date.now();
+        await upsertLastSuccessSyncTimeByVault(this.db, this.vaultRandomID, ts);
+        this.updateLastSyncMsg(s, ts, null);
      } else if (!everythingOk) {
-        this.updateLastSuccessSyncMsg(-2); // magic number
+        const ts = Date.now();
+        await upsertLastFailedSyncTimeByVault(this.db, this.vaultRandomID, ts);
+        this.updateLastSyncMsg(s, null, ts); // magic number
      }
    };

@@ -369,12 +435,15 @@ export default class RemotelySavePlugin extends Plugin {
    };

    const callbackSyncProcess = async (
+      s: SyncTriggerSourceType,
      realCounter: number,
      realTotalCount: number,
      pathName: string,
      decision: string
    ) => {
      this.setCurrSyncMsg(
+        t,
+        s,
        realCounter,
        realTotalCount,
        pathName,
@@ -399,6 +468,8 @@ export default class RemotelySavePlugin extends Plugin {
      return;
    }

+    const configSaver = async () => await this.saveSettings();
+
    await syncer(
      fsLocal,
      fsRemote,
@@ -410,6 +481,8 @@ export default class RemotelySavePlugin extends Plugin {
      this.vaultRandomID,
      this.app.vault.configDir,
      this.settings,
+      this.manifest.version,
+      configSaver,
      getProtectError,
      markIsSyncingFunc,
      notifyFunc,
@@ -696,6 +769,305 @@ export default class RemotelySavePlugin extends Plugin {
      }
    );

+    this.registerObsidianProtocolHandler(
+      COMMAND_CALLBACK_PRO,
+      async (inputParams) => {
+        if (this.oauth2Info.helperModal !== undefined) {
+          const k = this.oauth2Info.helperModal.contentEl;
+          k.empty();
+
+          t("protocol_pro_connecting")
+            .split("\n")
+            .forEach((val) => {
+              k.createEl("p", {
+                text: val,
+              });
+            });
+        }
+
+        console.debug(inputParams);
+        const authRes = await sendAuthReqPro(
+          this.oauth2Info.verifier || "verifier",
+          inputParams.code,
+          async (e: any) => {
+            new Notice(t("protocol_pro_connect_fail"));
+            new Notice(`${e}`);
+            throw e;
+          }
+        );
+        console.debug(authRes);
+
+        const self = this;
+        await setConfigBySuccessfullAuthInplacePro(
+          this.settings.pro!,
+          authRes,
+          () => self.saveSettings()
+        );
+
+        await getAndSaveProFeatures(
+          this.settings.pro!,
+          this.manifest.version,
+          () => self.saveSettings()
+        );
+
+        await getAndSaveProEmail(
+          this.settings.pro!,
+          this.manifest.version,
+          () => self.saveSettings()
+        );
+
+        this.oauth2Info.verifier = ""; // reset it
+        this.oauth2Info.helperModal?.close(); // close it
+        this.oauth2Info.helperModal = undefined;
+
+        this.oauth2Info.authDiv?.toggleClass(
+          "pro-auth-button-hide",
+          this.settings.pro?.refreshToken !== ""
+        );
+        this.oauth2Info.authDiv = undefined;
+
+        this.oauth2Info.revokeAuthSetting?.setDesc(
+          t("protocol_pro_connect_succ_revoke", {
+            email: this.settings.pro?.email,
+          })
+        );
+        this.oauth2Info.revokeAuthSetting = undefined;
+        this.oauth2Info.revokeDiv?.toggleClass(
+          "pro-revoke-auth-button-hide",
+          this.settings.pro?.email === ""
+        );
+        this.oauth2Info.revokeDiv = undefined;
+      }
+    );
+
+    this.registerObsidianProtocolHandler(
+      COMMAND_CALLBACK_BOX,
+      async (inputParams) => {
+        if (this.oauth2Info.helperModal !== undefined) {
+          const k = this.oauth2Info.helperModal.contentEl;
+          k.empty();
+
+          t("protocol_box_connecting")
+            .split("\n")
+            .forEach((val) => {
+              k.createEl("p", {
+                text: val,
+              });
+            });
+        }
+
+        console.debug(inputParams);
+        const authRes = await sendAuthReqBox(
+          inputParams.code,
+          async (e: any) => {
+            new Notice(t("protocol_box_connect_fail"));
+            new Notice(`${e}`);
+            throw e;
+          }
+        );
+        console.debug(authRes);
+
+        const self = this;
+        await setConfigBySuccessfullAuthInplaceBox(
+          this.settings.box!,
+          authRes,
+          () => self.saveSettings()
+        );
+
+        this.oauth2Info.verifier = ""; // reset it
+        this.oauth2Info.helperModal?.close(); // close it
+        this.oauth2Info.helperModal = undefined;
+
+        this.oauth2Info.authDiv?.toggleClass(
+          "box-auth-button-hide",
+          this.settings.box?.refreshToken !== ""
+        );
+        this.oauth2Info.authDiv = undefined;
+
+        this.oauth2Info.revokeAuthSetting?.setDesc(
+          t("protocol_box_connect_succ_revoke")
+        );
+        this.oauth2Info.revokeAuthSetting = undefined;
+        this.oauth2Info.revokeDiv?.toggleClass(
+          "box-revoke-auth-button-hide",
+          this.settings.box?.refreshToken === ""
+        );
+        this.oauth2Info.revokeDiv = undefined;
+      }
+    );
+
+    this.registerObsidianProtocolHandler(
+      COMMAND_CALLBACK_PCLOUD,
+      async (inputParams) => {
+        if (this.oauth2Info.helperModal !== undefined) {
+          const k = this.oauth2Info.helperModal.contentEl;
+          k.empty();
+
+          t("protocol_pcloud_connecting")
+            .split("\n")
+            .forEach((val) => {
+              k.createEl("p", {
+                text: val,
+              });
+            });
+        }
+
+        console.debug(inputParams);
+        const authRes = await sendAuthReqPCloud(
+          inputParams.hostname,
+          inputParams.code,
+          async (e: any) => {
+            new Notice(t("protocol_pcloud_connect_fail"));
+            new Notice(`${e}`);
+            throw e;
+          }
+        );
+        console.debug(authRes);
+
+        const self = this;
+        await setConfigBySuccessfullAuthInplacePCloud(
+          this.settings.pcloud!,
+          inputParams as unknown as AuthAllowFirstResPCloud,
+          authRes,
+          () => self.saveSettings()
+        );
+
+        this.oauth2Info.verifier = ""; // reset it
+        this.oauth2Info.helperModal?.close(); // close it
+        this.oauth2Info.helperModal = undefined;
+
+        this.oauth2Info.authDiv?.toggleClass(
+          "pcloud-auth-button-hide",
+          this.settings.pcloud?.accessToken !== ""
+        );
+        this.oauth2Info.authDiv = undefined;
+
+        this.oauth2Info.revokeAuthSetting?.setDesc(
+          t("protocol_pcloud_connect_succ_revoke")
+        );
+        this.oauth2Info.revokeAuthSetting = undefined;
+        this.oauth2Info.revokeDiv?.toggleClass(
+          "pcloud-revoke-auth-button-hide",
+          this.settings.pcloud?.accessToken === ""
+        );
+        this.oauth2Info.revokeDiv = undefined;
+      }
+    );
+
+    this.registerObsidianProtocolHandler(
+      COMMAND_CALLBACK_YANDEXDISK,
+      async (inputParams) => {
+        if (this.oauth2Info.helperModal !== undefined) {
+          const k = this.oauth2Info.helperModal.contentEl;
+          k.empty();
+
+          t("protocol_yandexdisk_connecting")
+            .split("\n")
+            .forEach((val) => {
+              k.createEl("p", {
+                text: val,
+              });
+            });
+        }
+
+        console.debug(inputParams);
+        const authRes = await sendAuthReqYandexDisk(
+          inputParams.code,
+          async (e: any) => {
+            new Notice(t("protocol_yandexdisk_connect_fail"));
+            new Notice(`${e}`);
+            throw e;
+          }
+        );
+        console.debug(authRes);
+
+        const self = this;
+        await setConfigBySuccessfullAuthInplaceYandexDisk(
+          this.settings.yandexdisk!,
+          authRes,
+          () => self.saveSettings()
+        );
+
+        this.oauth2Info.verifier = ""; // reset it
+        this.oauth2Info.helperModal?.close(); // close it
+        this.oauth2Info.helperModal = undefined;
+
+        this.oauth2Info.authDiv?.toggleClass(
+          "yandexdisk-auth-button-hide",
+          this.settings.yandexdisk?.refreshToken !== ""
+        );
+        this.oauth2Info.authDiv = undefined;
+
+        this.oauth2Info.revokeAuthSetting?.setDesc(
+          t("protocol_yandexdisk_connect_succ_revoke")
+        );
+        this.oauth2Info.revokeAuthSetting = undefined;
+        this.oauth2Info.revokeDiv?.toggleClass(
+          "yandexdisk-revoke-auth-button-hide",
+          this.settings.yandexdisk?.refreshToken === ""
+        );
+        this.oauth2Info.revokeDiv = undefined;
+      }
+    );
+
+    this.registerObsidianProtocolHandler(
+      COMMAND_CALLBACK_KOOFR,
+      async (inputParams) => {
+        if (this.oauth2Info.helperModal !== undefined) {
+          const k = this.oauth2Info.helperModal.contentEl;
+          k.empty();
+
+          t("protocol_koofr_connecting")
+            .split("\n")
+            .forEach((val) => {
+              k.createEl("p", {
+                text: val,
+              });
+            });
+        }
+
+        console.debug(inputParams);
+        const authRes = await sendAuthReqKoofr(
+          this.settings.koofr.api,
+          inputParams.code,
+          async (e: any) => {
+            new Notice(t("protocol_koofr_connect_fail"));
+            new Notice(`${e}`);
+            throw e;
+          },
+          true
+        );
+        console.debug(authRes);
+
+        const self = this;
+        await setConfigBySuccessfullAuthInplaceKoofr(
+          this.settings.koofr!,
+          authRes!,
+          () => self.saveSettings()
+        );
+
+        this.oauth2Info.verifier = ""; // reset it
+        this.oauth2Info.helperModal?.close(); // close it
+        this.oauth2Info.helperModal = undefined;
+
+        this.oauth2Info.authDiv?.toggleClass(
+          "koofr-auth-button-hide",
+          this.settings.koofr?.refreshToken !== ""
+        );
+        this.oauth2Info.authDiv = undefined;
+
+        this.oauth2Info.revokeAuthSetting?.setDesc(
+          t("protocol_koofr_connect_succ_revoke")
+        );
+        this.oauth2Info.revokeAuthSetting = undefined;
+        this.oauth2Info.revokeDiv?.toggleClass(
+          "koofr-revoke-auth-button-hide",
+          this.settings.koofr?.refreshToken === ""
+        );
+        this.oauth2Info.revokeDiv = undefined;
+      }
+    );
+
    this.syncRibbon = this.addRibbonIcon(
      iconNameSyncWait,
      `${this.manifest.name}`,
@@ -714,15 +1086,21 @@ export default class RemotelySavePlugin extends Plugin {
      this.statusBarElement = statusBarItem.createEl("span");
      this.statusBarElement.setAttribute("data-tooltip-position", "top");

-      this.updateLastSuccessSyncMsg(
-        await getLastSuccessSyncTimeByVault(this.db, this.vaultRandomID)
+      this.updateLastSyncMsg(
+        undefined,
+        await getLastSuccessSyncTimeByVault(this.db, this.vaultRandomID),
+        await getLastFailedSyncTimeByVault(this.db, this.vaultRandomID)
      );
      // update statusbar text every 30 seconds
      this.registerInterval(
        window.setInterval(async () => {
-          this.updateLastSuccessSyncMsg(
-            await getLastSuccessSyncTimeByVault(this.db, this.vaultRandomID)
-          );
+          if (!this.isSyncing) {
+            this.updateLastSyncMsg(
+              undefined,
+              await getLastSuccessSyncTimeByVault(this.db, this.vaultRandomID),
+              await getLastFailedSyncTimeByVault(this.db, this.vaultRandomID)
+            );
+          }
        }, 1000 * 30)
      );
    }
@@ -978,6 +1356,26 @@ export default class RemotelySavePlugin extends Plugin {
      this.settings.profiler.recordSize = false;
    }

+    if (this.settings.googledrive === undefined) {
+      this.settings.googledrive = DEFAULT_GOOGLEDRIVE_CONFIG;
+    }
+
+    if (this.settings.box === undefined) {
+      this.settings.box = DEFAULT_BOX_CONFIG;
+    }
+
+    if (this.settings.pcloud === undefined) {
+      this.settings.pcloud = DEFAULT_PCLOUD_CONFIG;
+    }
+
+    if (this.settings.yandexdisk === undefined) {
+      this.settings.yandexdisk = DEFAULT_YANDEXDISK_CONFIG;
+    }
+
+    if (this.settings.koofr === undefined) {
+      this.settings.koofr = DEFAULT_KOOFR_CONFIG;
+    }
+
    await this.saveSettings();
  }

@@ -1046,25 +1444,105 @@ export default class RemotelySavePlugin extends Plugin {
      needSave = true;
    }

+    let googleDriveExpired = false;
+    if (
+      this.settings.googledrive.refreshToken !== "" &&
+      current >= this.settings!.googledrive!.credentialsShouldBeDeletedAtTimeMs!
+    ) {
+      googleDriveExpired = true;
+      this.settings.googledrive = cloneDeep(DEFAULT_GOOGLEDRIVE_CONFIG);
+      needSave = true;
+    }
+
+    let boxExpired = false;
+    if (
+      this.settings.box.refreshToken !== "" &&
+      current >= this.settings!.box!.credentialsShouldBeDeletedAtTimeMs!
+    ) {
+      boxExpired = true;
+      this.settings.box = cloneDeep(DEFAULT_BOX_CONFIG);
+      needSave = true;
+    }
+
+    let pCloudExpired = false;
+    if (
+      this.settings.pcloud.accessToken !== "" &&
+      current >= this.settings!.pcloud!.credentialsShouldBeDeletedAtTimeMs!
+    ) {
+      pCloudExpired = true;
+      this.settings.pcloud = cloneDeep(DEFAULT_PCLOUD_CONFIG);
+      needSave = true;
+    }
+
+    let yandexDiskExpired = false;
+    if (
+      this.settings.yandexdisk.refreshToken !== "" &&
+      current >= this.settings!.yandexdisk!.credentialsShouldBeDeletedAtTimeMs!
+    ) {
+      yandexDiskExpired = true;
+      this.settings.yandexdisk = cloneDeep(DEFAULT_YANDEXDISK_CONFIG);
+      needSave = true;
+    }
+
+    let koofrExpired = false;
+    if (
+      this.settings.koofr.refreshToken !== "" &&
+      current >= this.settings!.koofr!.credentialsShouldBeDeletedAtTimeMs!
+    ) {
+      koofrExpired = true;
+      this.settings.koofr = cloneDeep(DEFAULT_KOOFR_CONFIG);
+      needSave = true;
+    }
+
+    if (this.settings.pro === undefined) {
+      this.settings.pro = cloneDeep(DEFAULT_PRO_CONFIG);
+    }
+
    // save back
    if (needSave) {
      await this.saveSettings();
    }

    // send notice
-    if (dropboxExpired && onedriveExpired) {
+    if (dropboxExpired) {
      new Notice(
-        `${this.manifest.name}: You haven't manually auth Dropbox and OneDrive for a while, you need to re-auth them again.`,
+        `${this.manifest.name}: You haven't manually auth Dropbox for many days, you need to re-auth it again.`,
        6000
      );
-    } else if (dropboxExpired) {
+    }
+    if (onedriveExpired) {
      new Notice(
-        `${this.manifest.name}: You haven't manually auth Dropbox for a while, you need to re-auth it again.`,
+        `${this.manifest.name}: You haven't manually auth OneDrive for many days, you need to re-auth it again.`,
        6000
      );
-    } else if (onedriveExpired) {
+    }
+    if (googleDriveExpired) {
      new Notice(
-        `${this.manifest.name}: You haven't manually auth OneDrive for a while, you need to re-auth it again.`,
+        `${this.manifest.name}: You haven't manually auth Google Drive for many days, you need to re-auth it again.`,
+        6000
+      );
+    }
+    if (boxExpired) {
+      new Notice(
+        `${this.manifest.name}: You haven't manually auth Box for many days, you need to re-auth it again.`,
+        6000
+      );
+    }
+    if (pCloudExpired) {
+      new Notice(
+        `${this.manifest.name}: You haven't manually auth pCloud for many days, you need to re-auth it again.`,
+        6000
+      );
+    }
+    if (yandexDiskExpired) {
+      new Notice(
+        `${this.manifest.name}: You haven't manually auth Yandex Disk for many days, you need to re-auth it again.`,
+        6000
+      );
+    }
+    if (koofrExpired) {
+      new Notice(
+        `${this.manifest.name}: You haven't manually auth koofr for many days, you need to re-auth it again.`,
        6000
      );
    }
@@ -1172,7 +1650,8 @@ export default class RemotelySavePlugin extends Plugin {

      if (
        caller === "SYNC" ||
-        (caller === "FILE_CHANGES" && lastModified > lastSuccessSyncMillis)
+        (caller === "FILE_CHANGES" &&
+          lastModified > (lastSuccessSyncMillis ?? 1))
      ) {
        console.debug(
          `so lastModified > lastSuccessSyncMillis or it's called while syncing before`
@@ -1228,12 +1707,14 @@ export default class RemotelySavePlugin extends Plugin {
        this.registerEvent(this.app.vault.on("modify", this._syncOnSaveEvent2));
        this.registerEvent(this.app.vault.on("create", this._syncOnSaveEvent2));
        this.registerEvent(this.app.vault.on("delete", this._syncOnSaveEvent2));
+        this.registerEvent(this.app.vault.on("rename", this._syncOnSaveEvent2));
      });
    } else {
      this.syncEvent?.off("SYNC_DONE", this._syncOnSaveEvent1);
      this.app.vault.off("modify", this._syncOnSaveEvent2);
      this.app.vault.off("create", this._syncOnSaveEvent2);
      this.app.vault.off("delete", this._syncOnSaveEvent2);
+      this.app.vault.off("rename", this._syncOnSaveEvent2);
    }
  }

@@ -1286,19 +1767,39 @@ export default class RemotelySavePlugin extends Plugin {
  }

  setCurrSyncMsg(
+    t: (x: TransItemType, vars?: any) => string,
+    s: SyncTriggerSourceType,
    i: number,
    totalCount: number,
    pathName: string,
    decision: string,
    triggerSource: SyncTriggerSourceType
  ) {
-    const msg = `syncing progress=${i}/${totalCount},decision=${decision},path=${pathName},source=${triggerSource}`;
-    this.currSyncMsg = msg;
+    const L = `${totalCount}`.length;
+    const iStr = `${i}`.padStart(L, "0");
+    const prefix = getStatusBarShortMsgFromSyncSource(t, s);
+    const shortMsg = prefix + `Syncing ${iStr}/${totalCount}`;
+    const longMsg =
+      prefix +
+      `Syncing progress=${iStr}/${totalCount},decision=${decision},path=${pathName},source=${triggerSource}`;
+    this.currSyncMsg = longMsg;
+
+    if (this.statusBarElement !== undefined) {
+      this.statusBarElement.setText(shortMsg);
+      this.statusBarElement.setAttribute("aria-label", longMsg);
+    }
  }

-  updateLastSuccessSyncMsg(lastSuccessSyncMillis?: number) {
+  updateLastSyncMsg(
+    s: SyncTriggerSourceType | undefined,
+    lastSuccessSyncMillis: number | null | undefined,
+    lastFailedSyncMillis: number | null | undefined
+  ) {
    if (this.statusBarElement === undefined) return;

+    // console.debug(lastSuccessSyncMillis);
+    // console.debug(lastFailedSyncMillis);
+
    const t = (x: TransItemType, vars?: any) => {
      return this.i18n.t(x, vars);
    };
@@ -1306,18 +1807,27 @@ export default class RemotelySavePlugin extends Plugin {
    let lastSyncMsg = t("statusbar_lastsync_never");
    let lastSyncLabelMsg = t("statusbar_lastsync_never_label");

-    if (lastSuccessSyncMillis !== undefined && lastSuccessSyncMillis === -1) {
-      lastSyncMsg = t("statusbar_syncing");
-    }
+    const inputTs = Math.max(
+      lastSuccessSyncMillis ?? -999,
+      lastFailedSyncMillis ?? -999
+    );
+    const isSuccess =
+      (lastSuccessSyncMillis ?? -999) >= (lastFailedSyncMillis ?? -999);

-    if (lastSuccessSyncMillis !== undefined && lastSuccessSyncMillis === -2) {
-      lastSyncMsg = t("statusbar_failed");
-      lastSyncLabelMsg = t("statusbar_failed");
-    }
-
-    if (lastSuccessSyncMillis !== undefined && lastSuccessSyncMillis > 0) {
-      const deltaTime = Date.now() - lastSuccessSyncMillis;
+    if (this.isSyncing) {
+      // magic number
+      // otherwise how can we know we are syncing??
+      lastSyncMsg =
+        getStatusBarShortMsgFromSyncSource(t, s!) + t("statusbar_syncing");
+    } else if (inputTs > 0) {
+      let prefix = "";
+      if (isSuccess) {
+        prefix = t("statusbar_sync_status_prefix_success");
+      } else {
+        prefix = t("statusbar_sync_status_prefix_failed");
+      }

+      const deltaTime = Date.now() - inputTs;
      // create human readable time
      const years = Math.floor(deltaTime / 31556952000);
      const months = Math.floor(deltaTime / 2629746000);
@@ -1326,9 +1836,7 @@ export default class RemotelySavePlugin extends Plugin {
      const hours = Math.floor(deltaTime / 3600000);
      const minutes = Math.floor(deltaTime / 60000);
      const seconds = Math.floor(deltaTime / 1000);
-
      let timeText = "";
-
      if (years > 0) {
        timeText = t("statusbar_time_years", { time: years });
      } else if (months > 0) {
@@ -1344,10 +1852,9 @@ export default class RemotelySavePlugin extends Plugin {
      } else if (seconds > 30) {
        timeText = t("statusbar_time_lessminute");
      } else {
-        timeText = t("statusbar_now");
+        timeText = t("statusbar_time_now");
      }
-
-      const dateText = new Date(lastSuccessSyncMillis).toLocaleTimeString(
+      const dateText = new Date(inputTs).toLocaleTimeString(
        navigator.language,
        {
          weekday: "long",
@@ -1357,8 +1864,11 @@ export default class RemotelySavePlugin extends Plugin {
        }
      );

-      lastSyncMsg = timeText;
-      lastSyncLabelMsg = t("statusbar_lastsync_label", { date: dateText });
+      lastSyncMsg = prefix + timeText;
+      lastSyncLabelMsg =
+        prefix + t("statusbar_lastsync_label", { date: dateText });
+    } else {
+      // TODO: no idea what happened.
    }

    this.statusBarElement.setText(lastSyncMsg);
@@ -341,11 +341,17 @@ export const checkHasSpecialCharForDir = (x: string) => {
  return /[?/\\]/.test(x);
 };

-export const unixTimeToStr = (x: number | undefined | null) => {
+export const unixTimeToStr = (x: number | undefined | null, hasMs = false) => {
  if (x === undefined || x === null || Number.isNaN(x)) {
    return undefined;
  }
-  return window.moment(x).format() as string;
+  if (hasMs) {
+    // 1716712162574 => '2024-05-26T16:29:22.574+08:00'
+    return window.moment(x).toISOString(true);
+  } else {
+    // 1716712162574 => '2024-05-26T16:29:22+08:00'
+    return window.moment(x).format() as string;
+  }
 };

 /**
@@ -416,7 +422,7 @@ export const toText = (x: any) => {
 export const statFix = async (vault: Vault, path: string) => {
  const s = await vault.adapter.stat(path);
  if (s === undefined || s === null) {
-    return s;
+    throw Error(`${path} doesn't exist cannot run stat`);
  }
  if (s.ctime === undefined || s.ctime === null || Number.isNaN(s.ctime)) {
    s.ctime = undefined as any; // force assignment
@@ -710,3 +716,14 @@ export const splitFileSizeToChunkRanges = (
  }
  return res;
 };
+
+export const getSha1 = async (x: ArrayBuffer, stringify: "base64" | "hex") => {
+  const y = await window.crypto.subtle.digest("SHA-1", x);
+
+  if (stringify === "base64") {
+    return arrayBufferToBase64(y);
+  } else if (stringify === "hex") {
+    return arrayBufferToHex(y);
+  }
+  throw Error(`not supported stringify option = ${stringify}`);
+};
@@ -21,6 +21,12 @@ import type {
 } from "./baseTypes";

 import cloneDeep from "lodash/cloneDeep";
+import { generateBoxSettingsPart } from "../pro/src/settingsBox";
+import { generateGoogleDriveSettingsPart } from "../pro/src/settingsGoogleDrive";
+import { generateKoofrSettingsPart } from "../pro/src/settingsKoofr";
+import { generatePCloudSettingsPart } from "../pro/src/settingsPCloud";
+import { generateProSettingsPart } from "../pro/src/settingsPro";
+import { generateYandexDiskSettingsPart } from "../pro/src/settingsYandexDisk";
 import { API_VER_ENSURE_REQURL_OK, VALID_REQURL } from "./baseTypesObs";
 import { messyConfigToNormal } from "./configPersist";
 import {
@@ -49,6 +55,7 @@ import {
  clearAllPrevSyncRecordByVault,
  clearAllSyncPlanRecords,
  destroyDBs,
+  upsertLastFailedSyncTimeByVault,
  upsertLastSuccessSyncTimeByVault,
 } from "./localdb";
 import type RemotelySavePlugin from "./main"; // unavoidable
@@ -62,10 +69,17 @@ import { DEFAULT_PROFILER_CONFIG } from "./profiler";
 class PasswordModal extends Modal {
  plugin: RemotelySavePlugin;
  newPassword: string;
-  constructor(app: App, plugin: RemotelySavePlugin, newPassword: string) {
+  encryptionMethodSetting: Setting;
+  constructor(
+    app: App,
+    plugin: RemotelySavePlugin,
+    newPassword: string,
+    encryptionMethodSetting: Setting
+  ) {
    super(app);
    this.plugin = plugin;
    this.newPassword = newPassword;
+    this.encryptionMethodSetting = encryptionMethodSetting;
  }

  onOpen() {
@@ -109,6 +123,16 @@ class PasswordModal extends Modal {
        button.setButtonText(t("modal_password_secondconfirm"));
        button.onClick(async () => {
          this.plugin.settings.password = this.newPassword;
+          if (this.newPassword !== "") {
+            this.encryptionMethodSetting.settingEl.removeClass(
+              "settings-encryption-method-hide"
+            );
+          } else {
+            this.encryptionMethodSetting.settingEl.addClass(
+              "settings-encryption-method-hide"
+            );
+          }
+
          await this.plugin.saveSettings();
          new Notice(t("modal_password_notice"));
          this.close();
@@ -168,7 +192,7 @@ class EncryptionMethodModal extends Modal {
  }
 }

-class ChangeRemoteBaseDirModal extends Modal {
+export class ChangeRemoteBaseDirModal extends Modal {
  readonly plugin: RemotelySavePlugin;
  readonly newRemoteBaseDir: string;
  readonly service: SUPPORTED_SERVICES_TYPE_WITH_REMOTE_BASE_DIR;
@@ -1790,6 +1814,65 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
        });
      });

+    //////////////////////////////////////////////////
+    // below for googledrive
+    //////////////////////////////////////////////////
+
+    const {
+      googleDriveDiv,
+      googleDriveAllowedToUsedDiv,
+      googleDriveNotShowUpHintSetting,
+    } = generateGoogleDriveSettingsPart(
+      containerEl,
+      t,
+      this.app,
+      this.plugin,
+      () => this.plugin.saveSettings()
+    );
+
+    //////////////////////////////////////////////////
+    // below for box
+    //////////////////////////////////////////////////
+
+    const { boxDiv, boxAllowedToUsedDiv, boxNotShowUpHintSetting } =
+      generateBoxSettingsPart(containerEl, t, this.app, this.plugin, () =>
+        this.plugin.saveSettings()
+      );
+
+    //////////////////////////////////////////////////
+    // below for pcloud
+    //////////////////////////////////////////////////
+
+    const { pCloudDiv, pCloudAllowedToUsedDiv, pCloudNotShowUpHintSetting } =
+      generatePCloudSettingsPart(containerEl, t, this.app, this.plugin, () =>
+        this.plugin.saveSettings()
+      );
+
+    //////////////////////////////////////////////////
+    // below for yandexdisk
+    //////////////////////////////////////////////////
+
+    const {
+      yandexDiskDiv,
+      yandexDiskAllowedToUsedDiv,
+      yandexDiskNotShowUpHintSetting,
+    } = generateYandexDiskSettingsPart(
+      containerEl,
+      t,
+      this.app,
+      this.plugin,
+      () => this.plugin.saveSettings()
+    );
+
+    //////////////////////////////////////////////////
+    // below for koofr
+    //////////////////////////////////////////////////
+
+    const { koofrDiv, koofrAllowedToUsedDiv, koofrNotShowUpHintSetting } =
+      generateKoofrSettingsPart(containerEl, t, this.app, this.plugin, () =>
+        this.plugin.saveSettings()
+      );
+
    //////////////////////////////////////////////////
    // below for general chooser (part 2/2)
    //////////////////////////////////////////////////
@@ -1805,6 +1888,17 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
        dropdown.addOption("webdav", t("settings_chooseservice_webdav"));
        dropdown.addOption("onedrive", t("settings_chooseservice_onedrive"));
        dropdown.addOption("webdis", t("settings_chooseservice_webdis"));
+        dropdown.addOption(
+          "googledrive",
+          t("settings_chooseservice_googledrive")
+        );
+        dropdown.addOption("box", t("settings_chooseservice_box"));
+        dropdown.addOption("pcloud", t("settings_chooseservice_pcloud"));
+        dropdown.addOption(
+          "yandexdisk",
+          t("settings_chooseservice_yandexdisk")
+        );
+        dropdown.addOption("koofr", t("settings_chooseservice_koofr"));

        dropdown
          .setValue(this.plugin.settings.serviceType)
@@ -1830,6 +1924,26 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
              "webdis-hide",
              this.plugin.settings.serviceType !== "webdis"
            );
+            googleDriveDiv.toggleClass(
+              "googledrive-hide",
+              this.plugin.settings.serviceType !== "googledrive"
+            );
+            boxDiv.toggleClass(
+              "box-hide",
+              this.plugin.settings.serviceType !== "box"
+            );
+            pCloudDiv.toggleClass(
+              "pcloud-hide",
+              this.plugin.settings.serviceType !== "pcloud"
+            );
+            yandexDiskDiv.toggleClass(
+              "yandexdisk-hide",
+              this.plugin.settings.serviceType !== "yandexdisk"
+            );
+            koofrDiv.toggleClass(
+              "koofr-hide",
+              this.plugin.settings.serviceType !== "koofr"
+            );
            await this.plugin.saveSettings();
          });
      });
@@ -1841,8 +1955,11 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
    const basicDiv = containerEl.createEl("div");
    basicDiv.createEl("h2", { text: t("settings_basic") });

+    const passwordSetting = new Setting(basicDiv);
+    const encryptionMethodSetting = new Setting(basicDiv);
+
    let newPassword = `${this.plugin.settings.password}`;
-    new Setting(basicDiv)
+    passwordSetting
      .setName(t("settings_password"))
      .setDesc(t("settings_password_desc"))
      .addText((text) => {
@@ -1857,11 +1974,21 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
      .addButton(async (button) => {
        button.setButtonText(t("confirm"));
        button.onClick(async () => {
-          new PasswordModal(this.app, this.plugin, newPassword).open();
+          new PasswordModal(
+            this.app,
+            this.plugin,
+            newPassword,
+            encryptionMethodSetting
+          ).open();
        });
      });

-    new Setting(basicDiv)
+    if (this.plugin.settings.password === "") {
+      encryptionMethodSetting.settingEl.addClass(
+        "settings-encryption-method-hide"
+      );
+    }
+    encryptionMethodSetting
      .setName(t("settings_encryptionmethod"))
      .setDesc(stringToFragment(t("settings_encryptionmethod_desc")))
      .addDropdown((dropdown) => {
@@ -2008,7 +2135,12 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
              this.plugin.vaultRandomID,
              -1
            );
-            this.plugin.updateLastSuccessSyncMsg(-1);
+            await upsertLastFailedSyncTimeByVault(
+              this.plugin.db,
+              this.plugin.vaultRandomID,
+              -1
+            );
+            this.plugin.updateLastSyncMsg(undefined, null, null);
            new Notice(t("settings_resetstatusbar_notice"));
          });
        });
@@ -2130,43 +2262,44 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
          });
      });

-    new Setting(advDiv)
+    let conflictActionSettingOrigDesc = t("settings_conflictaction_desc");
+    if (
+      (this.plugin.settings.conflictAction ?? "keep_newer") === "smart_conflict"
+    ) {
+      conflictActionSettingOrigDesc += t(
+        "settings_conflictaction_smart_conflict_desc"
+      );
+    }
+    const conflictActionSetting = new Setting(advDiv)
      .setName(t("settings_conflictaction"))
-      .setDesc(t("settings_conflictaction_desc"))
-      .addDropdown((dropdown) => {
-        dropdown.addOption(
-          "keep_newer",
-          t("settings_conflictaction_keep_newer")
-        );
-        dropdown.addOption(
-          "keep_larger",
-          t("settings_conflictaction_keep_larger")
-        );
-        dropdown
-          .setValue(this.plugin.settings.conflictAction ?? "keep_newer")
-          .onChange(async (val) => {
-            this.plugin.settings.conflictAction = val as ConflictActionType;
-            await this.plugin.saveSettings();
-          });
-      });
+      .setDesc(stringToFragment(conflictActionSettingOrigDesc));
+    conflictActionSetting.addDropdown((dropdown) => {
+      dropdown
+        .addOption("keep_newer", t("settings_conflictaction_keep_newer"))
+        .addOption("keep_larger", t("settings_conflictaction_keep_larger"))
+        .addOption(
+          "smart_conflict",
+          t("settings_conflictaction_smart_conflict")
+        )
+        .setValue(this.plugin.settings.conflictAction ?? "keep_newer")
+        .onChange(async (val) => {
+          this.plugin.settings.conflictAction = val as ConflictActionType;
+          await this.plugin.saveSettings();

-    new Setting(advDiv)
-      .setName(t("settings_cleanemptyfolder"))
-      .setDesc(t("settings_cleanemptyfolder_desc"))
-      .addDropdown((dropdown) => {
-        dropdown.addOption("skip", t("settings_cleanemptyfolder_skip"));
-        dropdown.addOption(
-          "clean_both",
-          t("settings_cleanemptyfolder_clean_both")
-        );
-        dropdown
-          .setValue(this.plugin.settings.howToCleanEmptyFolder ?? "clean_both")
-          .onChange(async (val) => {
-            this.plugin.settings.howToCleanEmptyFolder =
-              val as EmptyFolderCleanType;
-            await this.plugin.saveSettings();
-          });
-      });
+          conflictActionSettingOrigDesc = t("settings_conflictaction_desc");
+          if (
+            (this.plugin.settings.conflictAction ?? "keep_newer") ===
+            "smart_conflict"
+          ) {
+            conflictActionSettingOrigDesc += t(
+              "settings_conflictaction_smart_conflict_desc"
+            );
+          }
+          conflictActionSetting.setDesc(
+            stringToFragment(conflictActionSettingOrigDesc)
+          );
+        });
+    });

    const percentage1 = new Setting(advDiv)
      .setName(t("settings_protectmodifypercentage"))
@@ -2242,7 +2375,7 @@ export class RemotelySaveSettingTab extends PluginSettingTab {

    new Setting(advDiv)
      .setName(t("setting_syncdirection"))
-      .setDesc(t("setting_syncdirection_desc"))
+      .setDesc(stringToFragment(t("setting_syncdirection_desc")))
      .addDropdown((dropdown) => {
        dropdown.addOption(
          "bidirectional",
@@ -2256,6 +2389,14 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
          "incremental_pull_only",
          t("setting_syncdirection_incremental_pull_only_desc")
        );
+        dropdown.addOption(
+          "incremental_push_and_delete_only",
+          t("setting_syncdirection_incremental_push_and_delete_only_desc")
+        );
+        dropdown.addOption(
+          "incremental_pull_and_delete_only",
+          t("setting_syncdirection_incremental_pull_and_delete_only_desc")
+        );

        dropdown
          .setValue(this.plugin.settings.syncDirection ?? "bidirectional")
@@ -2363,6 +2504,44 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
        button.onClick(async () => {
          new ExportSettingsQrCodeModal(this.app, this.plugin, "webdis").open();
        });
+      })
+      .addButton(async (button) => {
+        button.setButtonText(t("settings_export_googledrive_button"));
+        button.onClick(async () => {
+          new ExportSettingsQrCodeModal(
+            this.app,
+            this.plugin,
+            "googledrive"
+          ).open();
+        });
+      })
+      .addButton(async (button) => {
+        button.setButtonText(t("settings_export_box_button"));
+        button.onClick(async () => {
+          new ExportSettingsQrCodeModal(this.app, this.plugin, "box").open();
+        });
+      })
+      .addButton(async (button) => {
+        button.setButtonText(t("settings_export_pcloud_button"));
+        button.onClick(async () => {
+          new ExportSettingsQrCodeModal(this.app, this.plugin, "pcloud").open();
+        });
+      })
+      .addButton(async (button) => {
+        button.setButtonText(t("settings_export_yandexdisk_button"));
+        button.onClick(async () => {
+          new ExportSettingsQrCodeModal(
+            this.app,
+            this.plugin,
+            "yandexdisk"
+          ).open();
+        });
+      })
+      .addButton(async (button) => {
+        button.setButtonText(t("settings_export_koofr_button"));
+        button.onClick(async () => {
+          new ExportSettingsQrCodeModal(this.app, this.plugin, "koofr").open();
+        });
      });

    let importSettingVal = "";
@@ -2417,6 +2596,29 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
        });
      });

+    //////////////////////////////////////////////////
+    // below for pro
+    //////////////////////////////////////////////////
+
+    const proDiv = containerEl.createEl("div");
+    generateProSettingsPart(
+      proDiv,
+      t,
+      this.app,
+      this.plugin,
+      () => this.plugin.saveSettings(),
+      googleDriveAllowedToUsedDiv,
+      googleDriveNotShowUpHintSetting,
+      boxAllowedToUsedDiv,
+      boxNotShowUpHintSetting,
+      pCloudAllowedToUsedDiv,
+      pCloudNotShowUpHintSetting,
+      yandexDiskAllowedToUsedDiv,
+      yandexDiskNotShowUpHintSetting,
+      koofrAllowedToUsedDiv,
+      koofrNotShowUpHintSetting
+    );
+
    //////////////////////////////////////////////////
    // below for debug
    //////////////////////////////////////////////////
@@ -21,6 +21,10 @@
  display: none;
 }

+.settings-encryption-method-hide {
+  display: none;
+}
+
 .s3-disclaimer {
  font-weight: bold;
 }
@@ -72,6 +76,101 @@
  display: none;
 }

+.googledrive-disclaimer {
+  font-weight: bold;
+}
+.googledrive-hide {
+  display: none;
+}
+
+.googledrive-allow-to-use-hide {
+  display: none;
+}
+
+.googledrive-auth-button-hide {
+  display: none;
+}
+
+.googledrive-revoke-auth-button-hide {
+  display: none;
+}
+
+.box-disclaimer {
+  font-weight: bold;
+}
+.box-hide {
+  display: none;
+}
+
+.box-allow-to-use-hide {
+  display: none;
+}
+
+.box-auth-button-hide {
+  display: none;
+}
+
+.box-revoke-auth-button-hide {
+  display: none;
+}
+
+.pcloud-disclaimer {
+  font-weight: bold;
+}
+.pcloud-hide {
+  display: none;
+}
+
+.pcloud-allow-to-use-hide {
+  display: none;
+}
+
+.pcloud-auth-button-hide {
+  display: none;
+}
+
+.pcloud-revoke-auth-button-hide {
+  display: none;
+}
+
+.yandexdisk-disclaimer {
+  font-weight: bold;
+}
+.yandexdisk-hide {
+  display: none;
+}
+
+.yandexdisk-allow-to-use-hide {
+  display: none;
+}
+
+.yandexdisk-auth-button-hide {
+  display: none;
+}
+
+.yandexdisk-revoke-auth-button-hide {
+  display: none;
+}
+
+.koofr-disclaimer {
+  font-weight: bold;
+}
+.koofr-hide {
+  display: none;
+}
+
+.koofr-allow-to-use-hide {
+  display: none;
+}
+
+.koofr-auth-button-hide {
+  display: none;
+}
+
+.koofr-revoke-auth-button-hide {
+  display: none;
+}
+
 .qrcode-img {
  width: 350px;
  height: 350px;
@@ -90,3 +189,18 @@
  /* flex-wrap: wrap; */
  display: grid;
 }
+
+.pro-disclaimer {
+  font-weight: bold;
+}
+.pro-hide {
+  display: none;
+}
+
+.pro-auth-button-hide {
+  display: none;
+}
+
+.pro-revoke-auth-button-hide {
+  display: none;
+}
@@ -19,6 +19,21 @@ const DEFAULT_SETTINGS: RemotelySavePluginSettings = {
  webdis: {
    address: "addr",
  } as any,
+  googledrive: {
+    refreshToken: "xxx",
+  } as any,
+  box: {
+    refreshToken: "xxx",
+  } as any,
+  pcloud: {
+    accessToken: "xxx",
+  } as any,
+  yandexdisk: {
+    refreshToken: "xxx",
+  } as any,
+  koofr: {
+    refreshToken: "xxx",
+  } as any,
  password: "password",
  serviceType: "s3",
  currLogLevel: "info",
@@ -6,6 +6,20 @@ const TerserPlugin = require("terser-webpack-plugin");
 const DEFAULT_DROPBOX_APP_KEY = process.env.DROPBOX_APP_KEY || "";
 const DEFAULT_ONEDRIVE_CLIENT_ID = process.env.ONEDRIVE_CLIENT_ID || "";
 const DEFAULT_ONEDRIVE_AUTHORITY = process.env.ONEDRIVE_AUTHORITY || "";
+const DEFAULT_REMOTELYSAVE_WEBSITE = process.env.REMOTELYSAVE_WEBSITE || "";
+const DEFAULT_REMOTELYSAVE_CLIENT_ID = process.env.REMOTELYSAVE_CLIENT_ID || "";
+const DEFAULT_GOOGLEDRIVE_CLIENT_ID = process.env.GOOGLEDRIVE_CLIENT_ID || "";
+const DEFAULT_GOOGLEDRIVE_CLIENT_SECRET =
+  process.env.GOOGLEDRIVE_CLIENT_SECRET || "";
+const DEFAULT_BOX_CLIENT_ID = process.env.BOX_CLIENT_ID || "";
+const DEFAULT_BOX_CLIENT_SECRET = process.env.BOX_CLIENT_SECRET || "";
+const DEFAULT_PCLOUD_CLIENT_ID = process.env.PCLOUD_CLIENT_ID || "";
+const DEFAULT_PCLOUD_CLIENT_SECRET = process.env.PCLOUD_CLIENT_SECRET || "";
+const DEFAULT_YANDEXDISK_CLIENT_ID = process.env.YANDEXDISK_CLIENT_ID || "";
+const DEFAULT_YANDEXDISK_CLIENT_SECRET =
+  process.env.YANDEXDISK_CLIENT_SECRET || "";
+const DEFAULT_KOOFR_CLIENT_ID = process.env.KOOFR_CLIENT_ID || "";
+const DEFAULT_KOOFR_CLIENT_SECRET = process.env.KOOFR_CLIENT_SECRET || "";

 module.exports = {
  entry: "./src/main.ts",
@@ -20,6 +34,18 @@ module.exports = {
      "process.env.DEFAULT_DROPBOX_APP_KEY": `"${DEFAULT_DROPBOX_APP_KEY}"`,
      "process.env.DEFAULT_ONEDRIVE_CLIENT_ID": `"${DEFAULT_ONEDRIVE_CLIENT_ID}"`,
      "process.env.DEFAULT_ONEDRIVE_AUTHORITY": `"${DEFAULT_ONEDRIVE_AUTHORITY}"`,
+      "process.env.DEFAULT_REMOTELYSAVE_WEBSITE": `"${DEFAULT_REMOTELYSAVE_WEBSITE}"`,
+      "process.env.DEFAULT_REMOTELYSAVE_CLIENT_ID": `"${DEFAULT_REMOTELYSAVE_CLIENT_ID}"`,
+      "process.env.DEFAULT_GOOGLEDRIVE_CLIENT_ID": `"${DEFAULT_GOOGLEDRIVE_CLIENT_ID}"`,
+      "process.env.DEFAULT_GOOGLEDRIVE_CLIENT_SECRET": `"${DEFAULT_GOOGLEDRIVE_CLIENT_SECRET}"`,
+      "process.env.DEFAULT_BOX_CLIENT_ID": `"${DEFAULT_BOX_CLIENT_ID}"`,
+      "process.env.DEFAULT_BOX_CLIENT_SECRET": `"${DEFAULT_BOX_CLIENT_SECRET}"`,
+      "process.env.DEFAULT_PCLOUD_CLIENT_ID": `"${DEFAULT_PCLOUD_CLIENT_ID}"`,
+      "process.env.DEFAULT_PCLOUD_CLIENT_SECRET": `"${DEFAULT_PCLOUD_CLIENT_SECRET}"`,
+      "process.env.DEFAULT_YANDEXDISK_CLIENT_ID": `"${DEFAULT_YANDEXDISK_CLIENT_ID}"`,
+      "process.env.DEFAULT_YANDEXDISK_CLIENT_SECRET": `"${DEFAULT_YANDEXDISK_CLIENT_SECRET}"`,
+      "process.env.DEFAULT_KOOFR_CLIENT_ID": `"${DEFAULT_KOOFR_CLIENT_ID}"`,
+      "process.env.DEFAULT_KOOFR_CLIENT_SECRET": `"${DEFAULT_KOOFR_CLIENT_SECRET}"`,
    }),
    // Work around for Buffer is undefined:
    // https://github.com/webpack/changelog-v5/issues/10
Author	SHA1	Message	Date
fyears	690f56945a	bump to 0.5.8 Release A New Version / build (16.x) (push) Failing after 51s Details	2024-06-18 23:10:18 +08:00
fyears	a764e419e7	add koofr	2024-06-18 23:05:30 +08:00
fyears	272bc7a543	bump to 0.5.7 Release A New Version / build (16.x) (push) Failing after 52s Details	2024-06-17 00:15:59 +08:00
fyears	35f5355c8e	optimize sync status bar	2024-06-17 00:15:33 +08:00
fyears	57493f57cf	polish doc	2024-06-16 20:07:49 +08:00
fyears	7f446b810c	bump to 0.5.6 Release A New Version / build (16.x) (push) Failing after 42s Details	2024-06-16 19:50:28 +08:00
fyears	9b1a8f6068	push and pull add delete	2024-06-16 19:48:40 +08:00
Hammy Havoc	94350873a9	Update README.md (#707 ) Fixed typos	2024-06-16 18:19:12 +08:00
fyears	1e6f59eb79	hide koofr for the moment	2024-06-15 23:09:31 +08:00
fyears	a64b859e46	add koofr	2024-06-15 23:06:41 +08:00
fyears	689376adfe	show enc method only if password is set	2024-06-15 16:21:13 +08:00
fyears	52d46b58d8	listen to rename	2024-06-15 16:09:07 +08:00
fyears	157eff3a61	let onedrive download happy with native fetch and no cache	2024-06-14 23:56:15 +08:00
fyears	5ed6fec6e9	fix pcloud bug	2024-06-14 01:26:14 +08:00
fyears	e3c53860f7	box refresh token refreshes itself	2024-06-14 00:41:50 +08:00
fyears	ce48f072cb	add apache and nginx webdav	2024-06-14 00:28:03 +08:00
fyears	d067937138	ignore special system files	2024-06-13 03:32:27 +08:00
Rafael Fernandes	60ff7e41bf	Document Open Media Vault WebDAV setup (#694 ) * Create README.md Create documentation on how to add WebDAV access to Open Media Vault and use it on Remotely Save * Update README.md Add link to Open Media Vault WebDAV documentation.	2024-06-12 23:04:44 +08:00
fyears	9f67d41786	fix folder sync	2024-06-12 23:02:26 +08:00
fyears	adacda7ee5	finally we know how to skip leading slash	2024-06-12 01:01:30 +08:00
fyears	356c563e95	polish	2024-06-12 00:43:06 +08:00
fyears	d3e134ce73	add draft of keeping folder	2024-06-12 00:42:36 +08:00
fyears	df0a0e2daa	0.5.5 Release A New Version / build (16.x) (push) Failing after 35s Details	2024-06-11 00:44:47 +08:00
fyears	c9080dae4e	yeah a fix for the sync	2024-06-11 00:44:19 +08:00
fyears	08b68e224d	bump to 0.5.4 Release A New Version / build (16.x) (push) Failing after 51s Details	2024-06-11 00:11:52 +08:00
fyears	2e09686675	add yandex disk pro	2024-06-11 00:01:36 +08:00
fyears	5186dcb967	add tutorials for box and pcloud	2024-06-09 23:05:08 +08:00
fyears	24b839227a	pcloud	2024-06-09 22:37:55 +08:00
fyears	12e45a7f38	box sdk	2024-06-09 16:09:21 +08:00
fyears	d5c2f726f9	box	2024-06-09 13:37:55 +08:00
fyears	1e4d729eb7	make the wording explict	2024-06-02 23:50:54 +08:00
fyears	64371b7d65	bump to 0.5.3 Release A New Version / build (16.x) (push) Failing after 44s Details	2024-06-02 23:38:44 +08:00
fyears	e116bb1deb	google drive is usable now	2024-06-02 23:37:53 +08:00
fyears	2ace90155c	fix build and bump to 0.5.2 Release A New Version / build (16.x) (push) Failing after 47s Details	2024-05-27 00:53:07 +08:00
fyears	d885a4c743	remove useless code Release A New Version / build (16.x) (push) Failing after 46s Details	2024-05-27 00:36:52 +08:00
fyears	b6d46d8b91	remove https detection	2024-05-27 00:35:55 +08:00
fyears	06dad54d4c	pro and smart conflict	2024-05-27 00:33:49 +08:00