more verbose reason for conn fail

src/remote.ts

@@ -271,15 +271,22 @@ export class RemoteClient {
     }
   };
 
-  checkConnectivity = async () => {
+  checkConnectivity = async (callbackFunc?: any) => {
     if (this.serviceType === "s3") {
-      return await s3.checkConnectivity(this.s3Client, this.s3Config);
+      return await s3.checkConnectivity(
+        this.s3Client,
+        this.s3Config,
+        callbackFunc
+      );
     } else if (this.serviceType === "webdav") {
-      return await webdav.checkConnectivity(this.webdavClient);
+      return await webdav.checkConnectivity(this.webdavClient, callbackFunc);
     } else if (this.serviceType === "dropbox") {
-      return await dropbox.checkConnectivity(this.dropboxClient);
+      return await dropbox.checkConnectivity(this.dropboxClient, callbackFunc);
     } else if (this.serviceType === "onedrive") {
-      return await onedrive.checkConnectivity(this.onedriveClient);
+      return await onedrive.checkConnectivity(
+        this.onedriveClient,
+        callbackFunc
+      );
     } else {
       throw Error(`not supported service type ${this.serviceType}`);
     }

src/remoteForDropbox.ts

@@ -636,7 +636,10 @@ export const deleteFromRemote = async (
   }
 };
 
-export const checkConnectivity = async (client: WrappedDropboxClient) => {
+export const checkConnectivity = async (
+  client: WrappedDropboxClient,
+  callbackFunc?: any
+) => {
   try {
     const results = await getRemoteMeta(client, "/");
     if (results === undefined) {
@@ -644,8 +647,10 @@ export const checkConnectivity = async (client: WrappedDropboxClient) => {
     }
     return true;
   } catch (err) {
-    console.error("dropbox connectivity error:");
+    log.debug(err);
-    console.error(err);
+    if (callbackFunc !== undefined) {
+      callbackFunc(err);
+    }
     return false;
   }
 };

src/remoteForOnedrive.ts

@@ -866,11 +866,18 @@ export const deleteFromRemote = async (
   await client.deleteJson(remoteFileName);
 };
 
-export const checkConnectivity = async (client: WrappedOnedriveClient) => {
+export const checkConnectivity = async (
+  client: WrappedOnedriveClient,
+  callbackFunc?: any
+) => {
   try {
     const k = await getUserDisplayName(client);
     return k !== "<unknown display name>";
   } catch (err) {
+    log.debug(err);
+    if (callbackFunc !== undefined) {
+      callbackFunc(err);
+    }
     return false;
   }
 };

src/remoteForS3.ts

@@ -498,7 +498,8 @@ export const deleteFromRemote = async (
  */
 export const checkConnectivity = async (
   s3Client: S3Client,
-  s3Config: S3Config
+  s3Config: S3Config,
+  callbackFunc?: any
 ) => {
   try {
     const results = await s3Client.send(
@@ -509,10 +510,19 @@ export const checkConnectivity = async (
       results.$metadata === undefined ||
       results.$metadata.httpStatusCode === undefined
     ) {
+      const err = "results or $metadata or httStatusCode is undefined";
+      log.debug(err);
+      if (callbackFunc !== undefined) {
+        callbackFunc(err);
+      }
       return false;
     }
     return results.$metadata.httpStatusCode === 200;
   } catch (err) {
+    log.debug(err);
+    if (callbackFunc !== undefined) {
+      callbackFunc(err);
+    }
     return false;
   }
 };

src/remoteForWebdav.ts

@@ -523,15 +523,27 @@ export const deleteFromRemote = async (
   }
 };
 
-export const checkConnectivity = async (client: WrappedWebdavClient) => {
+export const checkConnectivity = async (
+  client: WrappedWebdavClient,
+  callbackFunc?: any
+) => {
   try {
     await client.init();
     const results = await getRemoteMeta(client, "/");
     if (results === undefined) {
+      const err = "results is undefined";
+      log.debug(err);
+      if (callbackFunc !== undefined) {
+        callbackFunc(err);
+      }
       return false;
     }
     return true;
   } catch (err) {
+    log.debug(err);
+    if (callbackFunc !== undefined) {
+      callbackFunc(err);
+    }
     return false;
   }
 };

src/settings.ts

@@ -826,11 +826,15 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
         button.onClick(async () => {
           new Notice(t("settings_checkonnectivity_checking"));
           const client = new RemoteClient("s3", this.plugin.settings.s3);
-          const res = await client.checkConnectivity();
+          const errors = { msg: "" };
+          const res = await client.checkConnectivity((err: any) => {
+            errors.msg = err;
+          });
           if (res) {
             new Notice(t("settings_s3_connect_succ"));
           } else {
             new Notice(t("settings_s3_connect_fail"));
+            new Notice(errors.msg);
           }
         });
       });
@@ -959,11 +963,15 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
             () => self.plugin.saveSettings()
           );
 
-          const res = await client.checkConnectivity();
+          const errors = { msg: "" };
+          const res = await client.checkConnectivity((err: any) => {
+            errors.msg = `${err}`;
+          });
           if (res) {
             new Notice(t("settings_dropbox_connect_succ"));
           } else {
             new Notice(t("settings_dropbox_connect_fail"));
+            new Notice(errors.msg);
           }
         });
       });
@@ -1074,11 +1082,15 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
             () => self.plugin.saveSettings()
           );
 
-          const res = await client.checkConnectivity();
+          const errors = { msg: "" };
+          const res = await client.checkConnectivity((err: any) => {
+            errors.msg = `${err}`;
+          });
           if (res) {
             new Notice(t("settings_onedrive_connect_succ"));
           } else {
             new Notice(t("settings_onedrive_connect_fail"));
+            new Notice(errors.msg);
           }
         });
       });
@@ -1230,7 +1242,10 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
             this.app.vault.getName(),
             () => self.plugin.saveSettings()
           );
-          const res = await client.checkConnectivity();
+          const errors = { msg: "" };
+          const res = await client.checkConnectivity((err: any) => {
+            errors.msg = `${err}`;
+          });
           if (res) {
             new Notice(t("settings_webdav_connect_succ"));
           } else {
@@ -1244,6 +1259,7 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
                 corsErrMsg: corsErrMsg,
               })
             );
+            new Notice(errors.msg);
           }
         });
       });