When transferring a realm to a server that has a different set of
applied migrations (different Zulip versions), there is a chance that
the imported data formats appear to be compatible but data invariants
could still be violated.
This commit adds an assertion during the import process to verify
that both the exported realm and the importing server have matching
Zulip versions and have a compatible set of migrations.
We didn't have thumbnailing for images coming from data import and this
commit adds the functionality.
There are a few fundamental issues that the implementation needs to
solve.
1. The images come from an untrusted source and therefore we don't want
to just pass them through to thumbnailing without checking. For that
reason, we cannot just import ImageAttachment rows from the export
data, even for zulip=>zulip imports.
The right way to process images is to pass them to maybe_thumbail(),
which runs libvips_check_image() on them to verify we're okay with
thumbnailing, creates ImageAttachment rows for them and sends them
to the thumbnailing queue worker. This approach lets us handle both
zulip=>zulip and 3rd party=>zulip imports in the same way,
2. There is a somewhat circular dependency between the Message,
Attachment and ImageAttachment import process:
- ImageAttachments would ideally be created after importing
Attachments, but they need to already exist at the time of Message
import. Otherwise, the markdown processor doesn't know it has to add
HTML for image previews to messages that reference images. This would
mean that messages imported from 3rd party tools don't get image
previews.
- Attachments only get created after Message import however, due to the
many-to-many relationship between Message and Attachment.
This is solved by fixing up some data of Attachments pre-emptively, such
as the path_ids. This gives us the necessary information for creating
ImageAttachments before importing Messages.
While we generate ImageAttachment rows synchronously, the actual
thumbnailing job is sent to the queue worker. Theoretically, the worker
could be very backlogged and not process the thumbnails anytime soon.
This is fine - if the app is loaded and tries to display a message with
such a not-yet-generated thumbnail, the code in `serve_file` will
generate the thumbnails synchronously on the fly and the user will see
the image preview displayed normally. See:
1b47134d0d/zerver/views/upload.py (L333-L342)
We create an unnamed user group with just the group creator as it's
member when trying to set the default. The pattern I've followed across
most of the acting_user additions is to just put the user declared
somewhere before the check_add_user_group and see if the test passes.
If it does not, then I'll look at what kind of user it needs to be set
to `acting_user`.
This commit introduced 'creator' and 'date_created'
fields in user groups, allowing users to view who
created the groups and when.
Both fields can be null for groups without creator data.
Ideally this would besplit up into two commits, but it's hard to split
into self-contained, atomic chunks now that this segment of the
import/export system is generally kind of broken after thumbnailing
system changes.
1. 3rd party export converters don't make .original image files.
Insteadthey provide a single file, which the import should treat as if
it's .original.
2. 3rd party converters create all the records with is_animated=False.
That's an issue, because without setting that correctly on the
RealmEmoji objects, Zulip doesn't know that it should use the "still"
thumbnail when the emoji is being used in a user's status. Which leads
to incorrectly displaying the user status with the distracting
animation.
The export tool was only exporting the already-thumbnailed emoji file,
omitting the original one. Now we make sure to export the .original file
too, like we do for avatars, and make the import tool process it
directly, to thumbnail it directly and generate a still in the case of
animated emojis.
Otherwise, the imported realm wouldn't have the <emoji>.png.original
file that we generally expect to have accessible, and stills for
animated emojis were completely missing.
This commit adds a new group level setting can_manage_group
for configuring who can manage a group. This commit only adds
the field in database and make changes to automatically create
single user groups corresponsing to acting user
which will be the default value for this setting.
Fixes part of #25928.
The emoji dir is present in the data from our export tool. This was
added in 468afe4840.
This comment hasn't been updated since
c4b886d8ae, so probably we just forgot to
refresh it when custom emoji export was added.
This commit improves the assert statements to verify
that the table name is not "usermessage' instead of
verifying that table name doesn't include a substring
"usermessage".
This prep commit will help to avoid assertion error when
importing "onboardingusermessage" table.
This commit renames the "Huddle" Django model class to
"DirectMessageGroup", while maintaining the same table --
"zerver_huddle".
Fixes part of #28640.
Hash the salt, user-id, and now avatar version into the filename.
This allows the URL contents to be immutable, and thus to be marked as
immutable and cacheable. Since avatars are served unauthenticated,
hashing with a server-side salt makes the current and past avatars not
enumerable.
This requires plumbing the current (or future) avatar version through
various parts of the upload process.
Since this already requires a full migration of current avatars, also
take the opportunity to fix the missing `.png` on S3 uploads (#12852).
We switch from SHA-1 to SHA-256, but truncate it such that avatar URL
data does not substantially increase in size.
Fixes: #12852.
This commit performs a sweep on the first batch of non API
files to rename "huddle" to "direct_message_group`.
It also renames variables and methods of type -
"huddle_message" to "group_direct_message".
This is a part of #28640
Fixes#26369.
There are two important fixes to make to the dicts in edit_history:
1. Update the user_id so that it points to the imported sender.
2. Apply fix_message_rendered_content to the prev_rendered_content data
to fix up mentions and other such syntax.
The docstring was misleading talking about the import from non-Zulip
platforms, when this function is also very much applicable for
Zulip-to-Zulip imports.
When importing a Stream, UserProfiles don't yet exist. so trying to
import stream.creator fails with something like:
```
psycopg2.errors.ForeignKeyViolation: insert or update on table
"zerver_stream" violates foreign key constraint
"zerver_stream_creator_id_65aeba7e_fk_zerver_userprofile_id"
DETAIL: Key (creator_id)=(5) is not present in table "zerver_userprofile".
```
When the export is NOT generated by another zulip server,
while importing:
* Set the 'zulip_update_announcements_level' to the latest level
as we don't want to send all the older update messages to them.
* Send a group DM to admins, suggesting them to configure the
stream in order to avoid missing future update messages.
Fixes#29041.
Gitter broke their older API as part of being integrated
into Matrix.
Their announcement blog says:
"Anything left using the Gitter APIs will need to be
updated to use the Matrix API"
This commit drops the legacy Gitter import tool and
we plan to build a new one for Matrix in future.
This commit removes name, description, is_system_group and
can_mention_group fields from UserGroup model and rename
them in NamedUserGroup model.
Fixes#29554.
PieterCK
Mateusz Mandera
Shubham Padia
Tim Abbott
Sahil Batra
Vector73
sujal shah
Lauryn Menard
Alex Vandiver
Ujjawal Modi
Prakhar Pratyush
Anders Kaseorg
roanster007
bedo
Prakhar Pratyush