Remove password checks for shared folders or make them optional

[AlarithUhde]

Version: Nextcloud Hub 8 (29.0.2)

Description: There was a change from previous versions when sharing a folder via link. I tried to share a link for a small group of people with a password. In contrast to earlier versions, the password is now being checked for "quality" (e.g., too short, in list of known passwords).

Although I understand that usually it is a good idea to advocate for strong passwords, I am not so sure this makes sense in the specific use case of shared folders. One use case for such folders is to share files with a group of people like students, people on a conference etc., where the password is not strictly confidential anyway. It rather makes sure that the data cannot be collected by automated tools.

I also see that there are other cases where the shared data may be more sensitive, and stronger passwords would make sense. Perhaps a good solution might be to make the password checks optional (e.g., opt out).

Problems with the current implementation:

• Setting a password at all is optional for shared folders. A "weak" password provides at least a mild barrier against automated data collection and has a legal function (e.g., sharing teaching material that contains copyright-protected images with a class). If setting "easy" passwords gets more difficult, this encourages people towards not setting any password at all
• The way this is currently implemented, nextcloud shows a warning notification. If the password is not changed and the user confirms the shared link, the folder by default gets shared with no password at all. This introduces a new potential security issue.

Suggested solutions:

• remove the password sanity check
• provide an opt out or opt in setting for the security checks