Add ftp:// protocol to list of protocols in shortcut function in "django/contrib/contenttypes/views.py"

[Nikolay Fedorov]

I use URLField (that support ftp protocols by default) with ​ftp:// for pass to get_absolute_url of my model class and has error trying to follow "View on site" on my admin.
Please add ​ftp:// protocol to list of protocols in shortcut function in "django/contrib/contenttypes/views.py" (line: 41)

[Tim Graham]

Thanks for the suggestion. Given that this seems to be a very niche use case, as well as the fact that major browsers like Firefox and Chrome no longer support FTP, I don't see a compelling reason to make this change.

[Nikolay Fedorov]

Thank you for answer and sorry for the inconvenience, but it's not about browsers, but about the OS explorer, which opens the directory by link. In my project, I use ftp links as a way to access files stored on a different computer than the one running django. I am not able to use FilePathField for example.

[Tim Graham]

Support for ftp was added to URLField nearly 14 years ago in #15229. Given major browsers no longer support it, there could be an argument that URLField should drop support for it also. The main difficulty would be a clean solution for backward-compatibility for those already using FTP URLs, see #25594.