Prior to this fix the number of users rendered by mentioned_users could equal the number of members in a channel which would be slow but could in more extreme case crash the page and/or server.
Operate a key at a time, to make it clearer what's going on.
This also fixes a bug where array integer fields would get re-written
even when there wasn't a change.
Array custom fields use separate rows for each value, but whenever we
update an array, we have always destroy the existing rows and create new
ones. Therefore, there's no benefit over using the json type.
There is an edge case where the following occurs:
1. The user sets a bookmark reminder on a post/topic
2. The post/topic is changed to a PM before or after the reminder
fires, and the notification remains unread by the user
3. The user opens their bookmark reminder notification list
and they can still see the notification even though they cannot
access the topic anymore
There is a very low chance for information leaking here, since
the only thing that could be exposed is the topic title if it
changes to something sensitive.
This commit filters the bookmark unread notifications by using
the bookmarkable can_see? methods and also prevents sending
reminder notifications for bookmarks the user can no longer see.
Why this change?
This ensures that malicious requests cannot end up causing the logs to
quickly fill up. The default chosen is sufficient for most legitimate
requests to the Discourse application.
When truncation happens, parsing of logs in supported format like
lograge may break down.
This adds access controls for the `/polls/grouped_poll_results`
endpoint, such that only users with appropriate permissions can read
the grouped results of a given poll.
Why this change?
The `PostsController#create` action allows arbitrary topic custom fields
to be set by any user that can create a topic. Without any restrictions,
this opens us up to potential security issues where plugins may be using
topic custom fields in security sensitive areas.
What does this change do?
1. This change introduces the `register_editable_topic_custom_field` plugin
API which allows plugins to register topic custom fields that are
editable either by staff users only or all users. The registered
editable topic custom fields are stored in `DiscoursePluginRegistry` and
is called by a new method `Topic#editable_custom_fields` which is then
used in the `PostsController#create` controller action. When an unpermitted custom fields is present in the `meta_data` params,
a 400 response code is returned.
2. Removes all reference to `meta_data` on a topic as it is confusing
since we actually mean topic custom fields instead.
Why this change?
As part of our ongoing efforts to security harden the Discourse
application, we are adding the `cross_origin_opener_policy_header` site setting
which allows the `Cross-Origin-Opener-Policy` response header to be set on requests
that preloads the Discourse application. In more technical terms, only
GET requests that are not json or xhr will have the response header set.
The `cross_origin_opener_policy_header` site setting is hidden for now
for testing purposes and will either be released as a public site
setting or be remove if we decide to be opinionated and ship a default
for the `Cross-Origin-Opener-Policy` response header.
This commit adds limits to themes and theme components on the:
- file size of about.json and .discourse-compatibility
- file size of theme assets
- number of files in a theme
The hidden site setting max_drafts_per_user defaults to 10_000 drafts per user.
The longest key should be "topic_<MAX_BIG_INT>" which is 25 characters.
This function was previously expecting multiple services to be injected on any class that uses it. This kind of hidden requirement leads to some very difficult-to-debug situations, so this commit updates the function to lookup all its required services inline.
