fix(TaskProcessing): Log mime_content_type() failure at info level

[solracsf]

Try to fix #54669

Summary

Replaced the mime_content_type() call with Nextcloud’s internal APIs.

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[julien-nc]

This does not work because the file name has no extension. We have to get the file content to guess the mimetype.
This could be done with $this->mimeTypeDetector->detectContent($node->getPath()); but it's tough to get the absolute path to the file.

The warning mentioned in #54669 does not prevent mime_content_type to work as far as I can see.

[solracsf]

@julien-nc :

This does not work because the file name has no extension

Oh, good point 👍

This could be done with $this->mimeTypeDetector->detectContent($node->getPath()); but it's tough to get the absolute path to the file.

Since $node->fopen('rb') gives us a readable stream, maybe can we grab a small prefix (e.g. 8 KB) and run detectContent() on it?

The warning mentioned in #54669 does not prevent mime_content_type to work as far as I can see.

Or are you suggesting to just @ silence it and move on?

[julien-nc]

detectContent() takes a path as input, you can't use the stream or a portion of it unless you write it to a temp file.

Or are you suggesting to just @ silence it and move on?

I think it's fine like it is now.
Can we silence the warning log?

[julien-nc]

Confirmed in the issue. It's working fine.
We could either silence the warning log (if possible) or reduce its log level to 1 (info).

[solracsf]

or reduce its log level to 1 (info).

Lowered to info as per your suggestion.

[julien-nc]

According to the logs, I'm not sure there is an exception thrown. It's just a log line written by Icewind\\Streams\\CallbackWrapper when its stream_cast method is called. We don't have control over this log production in TaskProcessingApiController.