The previous export tool would only work properly for small realms,
and was missing a number of important features:
* Export of avatars and uploads from S3
* Export of presence data, activity data, etc.
* Faithful export/import of timestamps
* Parallel export of messages
* Not OOM killing for large realms
The new tool runs as a pair of documented management commands, and
solves all of those problems.
Also we add a new management command for exporting the data of an
individual user.
Often, users will copy email addresses with a name (rather than pure
email addresses) into the Zulip "invite users" UI. Previously, that
would throw an error.
This change also adds a get_invitee_emails_set function for parsing
emails content and a test suite for this new feature.
Fixes: #1419.
While logging through GitHub if the realm of the user doesn't
exist then we are redirected to registration page but the action
points to the complete url of the GitHub oAuth overflow.
The MitUser model caused a constant series of little problems for
users with mit.edu email addresses trying to sign up for different
Zulip servers.
The new implementation just uses conditionals on the realm object when
selecting the confirmation template to use.
In python 3, subprocess uses bytes for input and output if
universal_newlines=False (the default). It uses str for input and
output if universal_newlines=True.
Since we mostly deal with strings, add universal_newlines=True to
subprocess.check_output.
This allows the frontend to fetch data on the subscribers list (etc.)
for streams where the user has never been subscribed, making it
possible to implement UI showing details like subscribe counts on the
subscriptions page.
This is likely a performance regression for very large teams with
large numbers of streams; we'll want to do some testing to determine
the impact (and thus whether we should make this feature only fully
enabled for larger realms).