The timestamp used for new login notifications always used the 12-hour
format. Instead of that, we use now the one preferred by the user, as
reflected in their settings.
Issue: When you created a new organization with /new, the "new login"
emails were emailed. We previously had a hack of adding the
.just_registered property to the user Python object to attempt to
prevent the emails, and checking that in zerver/signals.py. This
commit gets rid of the .just_registered check.
Instead of the .just_registered check, this checks if the user has
joined more than a minute before.
A test test_dont_send_login_emails_for_new_user_registration_logins
already exists.
Tweaked by tabbott to introduce the constant JUST_CREATED_THRESHOLD.
Fixes#10179.
Email notifications for new logins displayed the login timestamp's
timezone in the location format (e.g. "Asia/Taipei"). Since that can
lead users to understand the login came from that place, the timezone in
those emails is now represented in +/-HHMM format.
Fixes#10178.
Both the queue processor and ScheduledJob emails need to sometimes pass a
to_user_id and sometimes pass a to_email, and it's more convenient to just
have one function that they can call that can handle either.
Also removes the now redundant send_email_to_user.
Previously, we were checking for "Zulip" entries in User-Agent strings
at the very end of the list, not the beginning. A Zulip User-Agent
should have priority, since it includes the User-Agent strings for a
lot of other browsers, and also it will always be the most specific
value.
This commit replaces all uses of django.core.mail.send_mail with send_email,
other than in the password reset flow, since that code looks like it is just
a patch to Django's password reset code.
The send_email function is in a new file, since putting it in
zerver.lib.notifications would create an import loop with confirmation.models.
send_future_email will soon be moved into email.py as well.
This adds helpful email notifications for users who just logged into a
Zulip server, as a security protection against accounts being hacked.
Text tweaked by tabbott.
Fixes#2182.