We start to force downloads for the attachment files. We do this
for all files except images or pdf's. We would like images or pdf's
to open up in browser itself.
Tweaked by tabbott for comment clarity and correctness.
From here on we start to authenticate uploaded file request before
serving this files in production. This involves allowing NGINX to
pass on these file requests to Django for authentication and then
serve these files by making use on internal redirect requests having
x-accel-redirect field. The redirection on requests and loading
of x-accel-redirect param is handled by django-sendfile.
NOTE: This commit starts to authenticate these requests for Zulip
servers running platforms either Ubuntu Xenial (16.04) or above.
Fixes: #320 and #291 partially.
We'll replace this primarily with per-realm quotas (plus the simple
per-file limit of settings.MAX_FILE_UPLOAD_SIZE, 25 MiB by default).
We do want per-user quotas too, but they'll need some more management
apparatus around them so an admin has a practical way to set them
differently for different users. And the error handling in this
existing code is rather confused. Just clear this feature out
entirely for now; then we'll build the per-realm version more cleanly,
and then we can later add back per-realm quotas modelled after that.
The migration to actually remove the field is in a subsequent commit.
Based in part on work by Vishnu Ks (hackerkid).
This is a remerge of e985b57259 (after
resolving merge conflicts, updating the tests, adding mypy annotations
etc.), which should now be correct, because we've done the necessary
database migration.
The rebase/remerge work was done by Tim Abbott and Aditya Bansal.
This is an important part of #320.
This reverts commit e985b57259.
This commit will break production when we next do a release, because
we haven't done a migration to create Attachment objects for
previously uploaded files.
Previously, uploaded files were served:
* With S3UploadBackend, via get_uploaded_file (redirects to S3)
* With LocalUploadBackend in production, via nginx directly
* With LocalUploadBackend in development, via Django's static file server
This changes that last case to use get_uploaded_file in development,
which is a key step towards being able to do proper access control
authorization.
Does not affect production.
Aditya Bansal
Vishnu Ks
Greg Price
rht
Tim Abbott
Ethan
rahuldeve
Rishi Gupta
Philip Skomorokhov
Yago González
Umair Khan
Steve Howell
Tim Abbott