When a user gets access to a private channel, they get a stream creation
event. Channel admins and users in `can_add_subscribers_group` already
have metadata access to a private channel and therefore do not need to
be notified.
We were not able to use
get_user_ids_with_metadata_access_via_permission_groups in the function
in question due to a cyclic dependency to `lib/streams.py`.
Users in `can_administer_channel_group` and `can_add_subscribers_group`
have access to private channel metadata. They should be notified of
relevant events.
We've only made relevant changes to lib/streams.py in this commit to
make the changes small and reviewable.
Earlier, we were passing the whole subscription object to the function
in order to check if the user was subscribed or not. In the future
commits, we want to check that without fetching and passing the complete
subscription object and this commit will help us do that.
When a stream configured for any of these settings is deactivated,
the corresponding realm settings should be set to NULL:
* new_stream_announcements_stream
* signup_announcements_stream
* zulip_update_announcements_stream
* moderation_request_channel
Earlier, we were not updating those realm settings to NULL.
We had helper functions like 'get_new_stream_announcements_stream'
to return None if the configured stream was deactivated.
But it makes more sense to just set them to NULL in DB.
This commit also includes a migration to clear those fields
if the configured channels are deactivated.
Previously, channel archival event messages were unread in
archived channels, which makes the archived channel accessible
from the inbox view.
This commit fixes this issue by auto-marking the channel archival
event message as read.
Fixes: zulip#33258.
Fixes#32369
Migrate stream delete event to include only stream ids in the form of
"stream_ids": [1,...], because clients only need the ids.
While keep sending ids in the form of "streams": [{stream_id: 1},...]
for compatibility with all clients other than web.
The stream and subscription objects now have stream_post_policy value
set according to the can_send_message_group setting representing the
superset of users who have permission to post in the channel.
This commit removes the 'email_token' field from the
'Stream' model, introduces a new model 'ChannelEmailAddress',
and backfills it.
This is a prep work towards our plan to generate unique
channel emails for different users, which can be used
to check post permissions at message send time.
This commit updates code to optimize code for computing stream
objects to be sent with stream creation event and in response
for 'GET /streams/{stream_id}' endpoint by optimizing number
of queries while computing values for group permission settings.
This change does not benefit much currently as we only have one
stream group permission setting, but is important before we add
more stream permission settings.
There are a couple of places left where we can still optimize
the code and that would be done in further commits.
This commit adds a new function to compute setting group
values for a list of streams, so we can avoid having duplicate
code for computing setting group IDs from streams.
This commit updates code to compute the values for group permission
settings in send_stream_creation_events_for_previously_inaccessible_streams
only when we need to send the events. This helps us in avoiding
unnecessary DB queries.
'bulk_remove_subscriptions' is used inside an outer db transaction
created in 'do_change_bot_owner'.
`transaction.atomic()` block in 'bulk_remove_subscriptions'
resulted in savepoint creation.
This commit adds `savepoint=False` to avoid that.
Streams should not be marked as private, and subscribers
of the deactivated stream should not be removed.
Update the confirmation message when archiving a stream.
`is_archived` field is added to the stream and types.
Include a new `archived_channeels` client capability, to allow clients
to access data on archived channels, without breaking
backwards-compatibility for existing clients that don't know how to
handle these.
Also, included `exclude_archived` parameter to `/get-streams`,
which defaults to `true` as basic clients may not be interested
in archived streams.
Renamed event types below in the enum class to use channel instead of
stream.
Event types moved: STREAM_CREATED, STREAM_DEACTIVATED, STREAM_NAME_CHANGED
STREAM_REACTIVATED, STREAM_MESSAGE_RETENTION_DAYS_CHANGED
STREAM_PROPERTY_CHANGED, STREAM_GROUP_BASED_SETTING_CHANGED
Earlier, we were using 'send_event' in
do_change_stream_message_retention_days which can lead to a situation
where we enqueue events but the function fails at a later stage.
Events should not be sent until we know we're not rolling back.
Fixes part of #30489.
Earlier, we were using 'send_event' in do_change_stream_description
which can lead to a situation where we enqueue events but the
function fails at a later stage.
Events should not be sent until we know we're not rolling back.
Fixes part of #30489.
Earlier, we were using 'send_event' in do_change_stream_post_policy
which can lead to a situation where we enqueue events but the
function fails at a later stage.
Events should not be sent until we know we're not rolling back.
Fixes part of #30489.
This commit adds a transaction.atomic decorator to the
'do_change_subscription_property' function to make
the db operations in the action function atomic.
Also, send_event is changed to send_event_on_commit.
Earlier, we were using 'send_event' & 'queue_json_publish' in
'do_send_messages' which can lead to a situation where we enqueue
events but the transaction fails at a later stage.
Events should not be sent until we know we're not rolling back.
This commit updates code to access name from named_user_group
field which points to the "NamedUserGroup" instead of directly
accessing name from "UserGroup", since name field will only
be present on NamedUserGroup objects in further commits.
Updates notification messages that are sent to "stream events"
topic when a permission or policy setting is changed to use channel
instead of stream. Also, updates some strings that were not marked
for translation in the message that was sent when the retention
policy was changed.
Updates notification messages that are sent when a stream/channel
is created.
Updates notification messages that are sent when a user is
subscribed to stream/channel(s).
Part of stream to channel rename project.
Updates translated JsonableError strings that relate to streams
to use channel instead of stream. Separated from other error string
updates as this is a dense area of changes for this rename.
Part of stream to channel rename project.
Generally updates variables that appear in translated strings that use
"stream" to instead use "channel".
Two exceptions are ErrorCode.STREAM_DOES_NOT_EXIST JsonableErrors as
changing the variable would also change the fields returned by these
errors to clients.
Changes to context variables in emails and variables in onboarding
welcome bot messages are addressed in separate commits.
Part of stream to channel rename project.
Adds nullable creator field, containing a reference to the user who
created the stream. When creating a stream, acting user is set as
the creator of the stream. Since API calls to create streams always
have an acting user, this field should always be set when streams
are created using the API.
Because streams can be created with no acting user, this field is
nullable. We try to backfill existing streams using RealmAuditLog table,
but not all streams are guaranteed to have a recorded create log. Thus
this new field is left null when it cannot be backfilled. We also set
this field to null when the creator user is deleted.
This is preparatory work towards adding a Topic model.
We plan to use the local variable name as 'topic' for
the Topic model objects.
Currently, we use *topic as the local variable name for
topic names.
We rename local variables of the form *topic to *topic_name
so that we don't need to think about type collisions in
individual code paths where we might want to talk about both
Topic objects and strings for the topic name.
This commit adds code to send "realm_user/remove" event
when a guest user loses access to a user due to the user
being unsubscribed from one or more streams.
