This demonstrates a way to resolve the long-standing issue
of typing higher-order identity functions without using
`cast` and in a type-safe manner for decorators in `cache.py`.
Signed-off-by: Zixuan James Li <359101898@qq.com>
It's natural that someone might try a wrong password 5 times, and then
go through a successful password reset; forcing such users to wait
half an hour before typing in the password they just changed the
account to seems unnecessarily punitive.
Clear the rate-limit upon successful password change.
This avoids an error when a user has already muted the new topic name.
We do this by ignoring duplicates, rather than catching the
IntegrityError, because this edit happens in a transaction, and that
would abort the transaction.
Our original implementation of moving muted topic records when a topic
is moved took a shortcut of treating all change_later usage as
something with intent to move the whole topic.
This works OK when moving the whole topic via this interface, but not
when moving a last off-topic message in the topic.
Address this by changing the rule to match the existing
moved_all_visible_messages variable.
Previously, Attachment.is_realm_public and its cousin,
Attachment.is_web_public, were properties that began as False and
transitioned to True only when a message containing a link to the
attachment was sent to the appropriate class of stream, or such a link
was added as part of editing a message.
This pattern meant that neither field was updated in situations where
the access permissions for a message changed:
* Moving the message to a different stream.
* Changing the permissions for a stream containing links to the message.
This correctness issue has limited security impact, because uploaded
files are secured both by a random URL and by these access checks.
To fix this, we reformulate these fields as a cache, with code paths
that change the permissions affecting an attachment responsible for
setting these values to the `None` (uncached) state. We prefer setting
this `None` state over computing the correct permissions, because the
correct post-edit permissions are a function of all messages
containing the attachment, and we don't want to be responsible for
fetching all of those messages in the edit code paths.
Add support for moving MutedTopic entries to another stream where
the user has access to shared history in both streams and
`propagate_mode != "change_one"`.
Also, we delete them the current user does not have access to the
target stream.
We now call this function inside do_create_user(...,
realm_creation=True), which generally improves readability and
robustness of the codebase.
This fixes a bug where this onboarding content was not correctly done
when creating a realm via LDAP, and also will be important as we add
new code paths that might let you create a realm.
