[Bug]: drag&drop upload of folder fails

[schiessle]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

I can't upload a folder via drag&drop

Steps to reproduce

1. Try to upload a folder via drag&drop from your local file manager

With Chrome the upload get stuck:

On Firefox the upload gets shows as successful:

But the result is not the folder with the files but a empty file with no mimetype:

Expected behavior

Either a successful upload or a meaningful error message that drag&drop of folders is not supported

Installation method

None

Nextcloud Server version

28

Operating system

None

PHP engine version

None

Web server

None

Database engine version

None

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

No response

List of activated Apps

No response

Nextcloud Signing status

No response

Nextcloud Logs

No response

Additional info

No response

[hibobmaster]

In my scenario, firefox/edge can only upload file to root folder. For other sub folder, i got
firefox:

XMLHttpRequest.setRequestHeader: Cannot convert argument 2 to ByteString because the character at index 60 has value 25991 which is greater than 255.

edge:

Uncaught (in promise) TypeError: Failed to execute 'setRequestHeader' on 'XMLHttpRequest': String contains non ISO-8859-1 code point.

Upload stuck at estimating time left and nothing happen.

[YYH2913]

The same problem in chrome
xhr.js:207 Uncaught (in promise) TypeError: Failed to execute 'setRequestHeader' on 'XMLHttpRequest': String contains non ISO-8859-1 code point.
at xhr.js:207:17
at Object.T [as forEach] (utils.js:265:10)
at xhr.js:206:13
at new Promise ()
at xhr (xhr.js:49:10)
at E.p (dispatchRequest.js:51:10)
at E.request (Axios.js:146:33)
at Function.request (bind.js:5:15)
at files-main.js?v=fc5569f1-0:2:313816
at files-main.js?v=fc5569f1-0:2:313860

Environment:
PHP Version: 8.1.2
MySQL Version: 10.6.12
Apache Version: 2.4.52
Operating System: Ubuntu 22.04.2 LTS
Language: Simplified Chinese

[murray3k]

Concerning the errors when uploading a folder into a subfolder:
I think there might be a slash "/" missing as a directory separator in line 91 in the DropService.ts between ${path} and ${directory.name}:

server/apps/files/src/services/DropService.ts

Line 91 in bac05ca

const absolutPath = `${davRootPath}${getUploader().destination.path}${path}${directory.name}`

Because when I create a folder "foo" and then drag&drop the folder "bar" into it, absolutPath looks like this:
absolutPath: "/files/[myusername]/foobar" instead of absolutPath: "/files/[myusername]/foo/bar".

Hope this helps somebody. First time looking at Nextcloud code. I don't feel comfortable submitting a patch just yet.