change method of s3 check connect

src/remoteForS3.ts

@@ -509,6 +509,11 @@ export const deleteFromRemote = async (
 /**
  * Check the config of S3 by heading bucket
  * https://stackoverflow.com/questions/50842835
+ *
+ * Updated on 20240102:
+ * Users are not always have permission of heading bucket,
+ * so we need to use listing objects instead...
+ *
  * @param s3Client
  * @param s3Config
  * @returns
@@ -519,9 +524,15 @@ export const checkConnectivity = async (
   callbackFunc?: any
 ) => {
   try {
-    const results = await s3Client.send(
+    // const results = await s3Client.send(
-      new HeadBucketCommand({ Bucket: s3Config.s3BucketName })
+    //   new HeadBucketCommand({ Bucket: s3Config.s3BucketName })
-    );
+    // );
+    // very simplified version of listing objects
+    const confCmd = {
+      Bucket: s3Config.s3BucketName,
+    } as ListObjectsV2CommandInput;
+    const results = await s3Client.send(new ListObjectsV2Command(confCmd));
+
     if (
       results === undefined ||
       results.$metadata === undefined ||