This commit prevents a 500 error from occurring if someone is trying to
setup their discourse instance as a sso provider and they don't pass in
a `return_sso_url` in their payload.
We were getting errors like this in Reviewables in some cases:
```
ActiveRecord::StatementInvalid (PG::AmbiguousColumn: ERROR: column reference "category_id" is ambiguous
LINE 4: ...TRUE) OR (reviewable_by_group_id IN (NULL))) AND (category_i...
```
The problem that was making everything go boom is that plugins can add their own custom filters for Reviewables. If one is doing an INNER JOIN on topics, which has its own category_id column, we would get the above AmbiguousColumn error. The solution here is to just make all references to the reviewable columns in the list_for and viewable_by code prefixed by the table name e.g. reviewables.category_id.
* FEATURE: Support for App Shortcuts Menu
This adds a list of shortcuts to a installed Discourse instance.
It can be accessed by right clicks or long press on the app icon.
See https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/master/Shortcuts/explainer.md
List of possible follow ups include:
- Making it admin customizable
- Making it user customizable
- Using SVG icons from the site icon sprite
- Picking an accent color for icons
* FIX: Add type to shortcut menu icons
This refactors default_current_user_provider in a few ways:
- Introduce a generic `api_parameter_allowed?` method which checks for whitelisted routes/formats
- Only read the api_key parameter on allowed routes. It is now completely ignored on other routes (previously it would raise a 403)
- Start reading user_api_key parameter on allowed routes
- Refactor tests as end-end integration tests
A plugin API for PARAMETER_API_PATTERNS will be added soon
Previously we only changed sequence on ownership change, this
cause a race condition between tabs where user could type for a
long time without being warned of an out of date draft.
This change is a radical change and we should watch closely.
Code was already in place to track sequence on the client so no
changes are needed there.
For pages that do not specify canonical URL we will default to `https://SITENAME/PATH`.
This ensures that if a URL is crawled on the CDN the search ranking will transfer to the main site.
Additionally we whitelist the `?page` param
* DEV: api documentation updates
- Created a script to convert json responses to rswag
- Documented several api endpoints
- Switched rswag to use header based auth
* Update script, fix some schema missmatches
Google insists on indexing pages so it can figure out if they
can be removed from the index.
see: https://support.google.com/webmasters/answer/6332384?hl=en
This change ensures the we have special behavior for Googlebot
where we allow indexing, but block the actual indexing via
X-Robots-Tag
Expand SiteSetting.allow_index_in_robots_txt so it also adds a
noindex header if set to false.
This makes sure that nothing is indexed even if it somehow reaches
Google.
1. Total 6 attempts per day per user
2. Total of 5 per unique email/login that is not found per hour
3. If an admin blocks an IP that IP can not request a reset
There were two constants here, `INLINE_ONEBOX_LOADING_CSS_CLASS` and
`INLINE_ONEBOX_CSS_CLASS` that were both longer than the strings they
were DRYing up: `inline-onebox-loading` and `inline-onebox`
I normally appreciate constants, but in this case it meant that we had
a lot of JS imports resulting in many more lines of code (and CPU cycles
spent figuring them out.)
It also meant we had an `.erb` file and had to invoke Ruby to create the
JS file, which meant the app was harder to port to Ember CLI.
I removed the constants. It's less DRY but faster and simpler, and
arguably the loss of DRYness is not significant as you can still search
for the `inline-onebox-loading` and `inline-onebox` strings easily if
you are refactoring.
We now show an options gear icon next to the bookmark name.
When expanded we show the "delete bookmark when reminder sent" option. The value of this checkbox is saved in local storage for the user.
If this is ticked, when a reminder is sent for the bookmark the bookmark itself is deleted. This is so people can use the reminder functionality by itself.
Also remove the blue alert reminder section from the "Edit Bookmark" modal as it just added clutter, because the user can already see they had a reminder set:
Adds a default false boolean column `delete_when_reminder_sent` to bookmarks.
Locale files get precompiled after deployment and they contained translations from the `default_locale`. That's especially bad in multisites, because the initial `default_locale` is `en_US`. Sites where the `default_locale` isn't `en_US` could see missing translations. The same thing could happen when users are allowed to chose a different locale.
This change simplifies the logic by not using the `default_locale` in the locale chain. It always falls back to `en` in case of missing translations.
The failover spec is very fragile and tests specific implementation
vs actual behavior
We rely on a different script during the build process to test
failover operates correctly
We were sharing `Discourse` both as an application object and a
namespace which complicated things for Ember CLI. This patch
moves raw templates into `__DISCOURSE_RAW_TEMPLATES` and adds
a couple helper methods to create/remove them.
This introduces new APIs for obtaining optimized thumbnails for topics. There are a few building blocks required for this:
- Introduces new `image_upload_id` columns on the `posts` and `topics` table. This replaces the old `image_url` column, which means that thumbnails are now restricted to uploads. Hotlinked thumbnails are no longer possible. In normal use (with pull_hotlinked_images enabled), this has no noticeable impact
- A migration attempts to match existing urls to upload records. If a match cannot be found then the posts will be queued for rebake
- Optimized thumbnails are generated during post_process_cooked. If thumbnails are missing when serializing a topic list, then a sidekiq job is queued
- Topic lists and topics now include a `thumbnails` key, which includes all the available images:
```
"thumbnails": [
{
"max_width": null,
"max_height": null,
"url": "//example.com/original-image.png",
"width": 1380,
"height": 1840
},
{
"max_width": 1024,
"max_height": 1024,
"url": "//example.com/optimized-image.png",
"width": 768,
"height": 1024
}
]
```
- Themes can request additional thumbnail sizes by using a modifier in their `about.json` file:
```
"modifiers": {
"topic_thumbnail_sizes": [
[200, 200],
[800, 800]
],
...
```
Remember that these are generated asynchronously, so your theme should include logic to fallback to other available thumbnails if your requested size has not yet been generated
- Two new raw plugin outlets are introduced, to improve the customisability of the topic list. `topic-list-before-columns` and `topic-list-before-link`
This ensures that at a minimum you are notified once a day of
repeat edits by the same user.
Long term we may consider winding this down to say 1 hour or
making it configurable.
Due to a refactor in e90f9e5cc4 we stopped notifying on edits if
a user liked a post and then edited.
The like could have happened a long time ago so this gets extra
confusing.
This change makes the suppression more deliberate. We only want
to suppress quite/link/mention if the user already got a reply
notification.
We can expand this suppression if it is not enough.
* When hovering over the bookmark icon for a post, show the name of the bookmark at the end of the tooltip _if_ it has been set.
* Order bookmarks by `updated_at DESC` in the user list and show that instead of created at.
Recently, we added feature that we are sending `/muted` to users who muted specific topic just before `/latest` so the client knows to ignore those messages - https://github.com/discourse/discourse/pull/9482
Same `/muted` message should be included when the post is edited
TLDR; this commit vastly improves how whitespaces are handled when converting from HTML to Markdown.
It also adds support for converting HTML <tables> to markdown tables.
The previous 'remove_whitespaces!' method was traversing the whole HTML tree and used a heuristic to remove
leading and trailing whitespaces whenever it was appropriate (ie. mostly before and after HTML block elements)
It was a good idea, but it was very limited and leaded to bad conversion when the html had leading whitespaces on several lines for example.
One such example can be found [here](https://meta.discourse.org/t/86782).
For various reasons, most of the whitespaces in a HTML file is ignored when the page is being displayed in a browser.
The rules that the browsers follow are the [CSS' White Space Processing Rules](https://www.w3.org/TR/css-text-3/#white-space-rules).
They can be quite complicated when you take into account RTL languages and other various tidbits but they boils down to the following:
- Collapse whitespaces down to one space (0x20) inside an inline context (ie. nodes/tags that are being displaying on the same line)
- Remove any leading/trailing whitespaces inside an inline context
One quick & dirty way of getting this 90% solved would be to do 'HTML.gsub!(/[[:space:]]+/, " ")'.
We would also need to hoist <pre> elements in order to not mess with their whitespaces.
Unfortunately, this solution let some whitespaces creep around HTML tags which leads to more '.strip!' calls than I can bear.
I decided to "emulate" the browser's handling of whitespaces and came up with a solution in 4 parts
1. remove_not_allowed!
The HtmlToMarkdown library is recursively "visiting" all the nodes in the HTML in order to convert them to Markdown.
All the nodes that aren't handled by the library (eg. <script>, <style> or any non-textual HTML tags) are "swallowed".
In order to reduce the number of nodes visited, the method 'remove_not_allowed!' will automatically delete all the nodes
that have no "visitor" (eg. a 'visit_<tag>' method) defined.
2. remove_hidden!
Similar purpose as the previous method (eg. reducing number of nodes visited), there's no point trying to convert something that is hidden.
The 'remove_hidden!' method removes any nodes that was hidden using the "hidden" HTML attribute, some CSS or with a width or height equal to 0.
3. hoist_line_breaks!
The 'hoist_line_breaks!' method is there to handle <br> tags. I know those tiny <br> don't do much but they can be quite annoying.
The <br> tags are inline elements but they visually work like a block element (ie. they create a new line).
If you have the following HTML "<i>Foo<br>Bar</i>", it ends up visually similar to "<i>Foo</i><br><i>Bar</i>".
The latter being much more easy to process than the former, so that's what this method is doing.
The "hoist_line_breaks" will hoist <br> tags out of inline tags until their parent is a block element.
4. remove_whitespaces!
The "remove_whitespaces!" is where all the whitespace removal is happening. It's broken down into 4 methods as well
- remove_whitespaces!
- is_inline?
- collapse_spaces!
- remove_trailing_space!
The 'remove_whitespace!' method is recursively walking the HTML tree (skipping <pre> tags).
If a node has any children, they will be chunked into groups of inline elements vs block elements.
For each chunks of inline elements, it will call the "collapse_space!" and "remove_trailing_space!" methods.
For each chunks of block elements, it will call "remote_whitespace!" to keep walking the HTML tree recursively.
The "is_inline?" method determines whether a node is part of a inline context.
A node is inline iif it's a text node or it's an inline tag, but not <br>, and all its children are also inline.
The "collapse_spaces!" method will collapse any kind of (white) space into a single space (" ") character, even accros tags.
For example, if we have " Foo \n<i> Bar </i>\t42", it will return "Foo <i>Bar </i>42".
Finally, the "remove_trailing_space!" method is there to remove any trailing space that might creep in at the end of the inline chunk.
This solution is not 100% bullet-proof.
It does not support RTL languages at all and has some caveats that I felt were not worth the work to get properly fixed.
FIX: better detection of hidden elements when converting HTML to Markdown
FIX: take into account the 'allowed_href_schemes' site setting when converting HTML <a> to Markdown
FIX: added support for 'mailto:' scheme when converting <a> from HTML to Markdown
FIX: added support for <img> dimensions when converting from HTML to Markdown
FIX: added support for <dl>, <dd> and <dt> when converting from HTML to Markdown
FIX: added support for multilines emphases, strongs and strikes when converting from HTML to Markdown
FIX: added support for <acronym> when converting from HTML to Markdown
DEV: remove unused 'sanitize' gem
Wow, did you just read all that?! Congratz, here's a cookie: 🍪.
We have the `# frozen_string_literal: true` comment on all our
files. This means all string literals are frozen. There is no need
to call #freeze on any literals.
For files with `# frozen_string_literal: true`
```
puts %w{a b}[0].frozen?
=> true
puts "hi".frozen?
=> true
puts "a #{1} b".frozen?
=> true
puts ("a " + "b").frozen?
=> false
puts (-("a " + "b")).frozen?
=> true
```
For more details see: https://samsaffron.com/archive/2018/02/16/reducing-string-duplication-in-ruby
* Rename all instances of bookmarkWithReminder and bookmark_with_reminder to just bookmark
* Delete old bookmark code at the same time
* Add migration to remove the bookmarkWithReminder post menu item if people have it set in site settings
Make sure the topic_user.bookmarked column is set correctly when user bookmarks/unbookmarks any post in a topic. For example, you bookmarked a post in the topic that was not the OP, the bookmark icon in the topic list would not be shown. Same if deleting a bookmark for the last bookmarked post in a topic, the bookmark icon in the topic list would not be removed.
Previously this was only setting it to true if bookmarking the OP/topic, which was not correct -- we want to show the icon on the topic list if any post is bookmarked.
Also set to false if unbookmarking the last bookmarked post in the topic.
Also in this PR is a migration to correct any out of sync topic_user.bookmarked columns, based on the new logic.
Previously we relied entirely on levenshtein_distance_spammer_emails site
setting to handle "similar looking" emails.
This commit improves the situation by always preferring to block (and check)
canonical emails.
This means that if:
`samevil+test@domain.com` is blocked the system will block `samevil@domain.com`
This means that `samevil+2@domain.com` (ad infinitum) will be blocked
This reverts commit 6f9177e2ed.
We decided on a completely different approach to the problem.
Instead we will let blocked emails be treated as canonical.
* When copying the markdown for an image between posts, we were not adding the srcset and data-small-image attributes which are done by calling optimize_image! in cooked post processor
* Refactored the code which was confusing in its current state (the consider_for_reuse method was super confusing) and fixed the issue
* FEATURE: don't display new/unread notification for muted topics
Currently, even if user mute topic, when a new reply to that topic arrives, the user will get "See 1 new or updated topic" message. After clicking on that link, nothing is visible (because the topic is muted)
To solve that problem, we will send background message to all users who recently muted that topic that update is coming and they can ignore the next message about that topic.
It's possible to cause a 500 error by putting in weird characters in the
input field for updating a users website on their profile.
Normal invalid input like not including the domain extension is already
handled by the user_profile model validation. This fix ensures a server
error doesn't occur for weird input characters.
If for some reason an update did not go through (for example,
concurrently updating the same topic twice), we were logging something
like:
```
create_errors_json called with unrecognized type: #<Topic
```
This happened because we knew an error occurred but the active record
object had no errors attached.
This patch fixes the issue by attaching a proper error message in the
event that this happens.
The main thrust of this PR is to take all the conditional checks based on the `enable_bookmarks_with_reminders` away and only keep the code from the `true` path, making bookmarks with reminders the core bookmarks feature. There is also a migration to create `Bookmark` records out of `PostAction` bookmarks for a site.
### Summary
* Remove logic based on whether enable_bookmarks_with_reminders is true. This site setting is now obsolete, the old bookmark functionality is being removed. Retain the setting and set the value to `true` in a migration.
* Use the code from the rake task to create a database migration that creates bookmarks from post actions.
* Change the bookmark report to read from the new table.
* Get rid of old endpoints for bookmarks
* Link to the new bookmarks list from the user summary page
Otherwise we are trying to update the reminder type with a string which often evaluates to 0 (At Desktop) which causes reminders to come through early.
* DEV: Use `render_json_error` (Adds specs for Admin::GroupsController)
* DEV: Use a specific error on blank category slug (Fixes a `render_json_error` warning)
* DEV: Use a specific error on reviewable claim conflict (Fixes a `render_json_error` warning)
* DEV: Use specific errors in Admin::UsersController (Fixes `render_json_error` warnings)
* FIX: PublishedPages error responses
* FIX: TopicsController error responses (There was an issue of two separate `Topic` instances for the same record. This makes sure there's only one up-to-date instance.)
It previously failed to match URLs with characters other than `[a-zA-z0-9\.\/:-]`. This meant that `PullHotlinkedImages` would sometimes download an external image and then never use it in any posts.
Latest version of Rails contains compatibility fixes for Ruby 2.7 and some
minor security fixes we would like to have
It also broke some of the multisite tests.
Rails tries to use the same connection for reading from a replica as writing
to the leader during tests, because, with everything happening in a
transaction, changes to the DB wouldn't otherwise be reflected in the
replica connection.
The difference now is that Rails tries to do this for connections opened
after the test has started which affected rails multisite connections.
The upshot of this is that, as things stand, you are likely to
experience problems if you try to connect to a different multisite DB in
a test when the `current_db` is not 'default'.
- Eliminate superfluous "author wrote" block
- Eliminate block-quote for all posts
- Move participant count and reply count to 1 line
- Prioritize name over username if forum requests
- Use fabrication in list controller spec to speed up spec
There is now an explicit "Delete Bookmark" button in the edit modal. A confirmation is shown before deleting.
Along with this, when the bookmarked post icon is clicked the modal is now shown instead of just deleting the bookmark. Also, the "Delete Bookmark" button from the user bookmark list now confirms the action.
Add a `d d` shortcut in the modal to delete the bookmark.
Users can now edit the bookmark name and reminder time from their list of bookmarks.
We use "Custom" for the date and time in the modal because if the user set a reminder for "tomorrow" then edit the reminder "tomorrow", the definition of what "tomorrow" is has changed.
Sometimes spec which is testing order groups by user count is failing.
My theory is that cause is the randomness of Postgres when the order value is the same for 2 rows.
In spec, we got three groups
`moderator_group` - 0 users
`group` - 1 user
`other_group` - 1 user
And we are expecting that controller will return them in ascending order [moderator, group, other_group]
Because `group` and `other_group` contain the same amount of users, we are dealing with luck
Therefore, I believe that adding one more user to other_group should make that query reliable.
It was not crashing on my local machine, so I am not 100% sure.
Within 24 hours of signing up, new users were losing their
default trust level of 3. With this fix, demotions from
trust level 3 won't happen when the "default trust level"
setting is 3 or 4.
* Count user summary bookmarks from new Bookmark table if bookmarks with reminders enabled
* Update topic user bookmarked column when new topic bookmark changed
* Make in:bookmarks search work with new bookmarks
* Fix batch inserts for bookmark rake task (and thus migration). We were only inserting one bookmark at a time, completely defeating the purpose of batching!
This commit is for a frequently requested task on meta so that only 1
API call is needed instead of 3!
In order to create a user via the api and not have them receive an
activation email you can pass in the `active=true` flag. This prevents
sending an email, but it is only half of the solution and puts the db in
a weird state where it has an active user with an unconfirmed email.
This commit fixes that and ensures that if the `active=true` flag is set
the user's email is also marked as confirmed.
This change only applies to admins using the API.
Related topics on meta:
- https://meta.discourse.org/t/-/68663
- https://meta.discourse.org/t/-/33133
- https://meta.discourse.org/t/-/36133
Trigger an event for plugins to consume when a user session is refreshed.
This allows external auth to be notified about account activity, and be
able to take action such as use oauth refresh tokens to keep oauth
tokens valid.
The new `enforce_canonical_emails` site setting ensures that emails in the
canonical form are unique.
This mean that if `s.a.m+1@gmail.com` is registered `sam@gmail.com` will
not be allowed.
The commit contains a blanket "tag strip" (stripping everything after +)
it also contains special handling of a "dot strip" for googlemail and gmail.
The setting only impacts new registrations after `enforce_canonical_emails`
The setting is default false so it will not impact any existing installs.
Timezone is guessed by moment.js if unset upon a normal login, but was not when
logging in via an email link. This adds logic to update a guessed
timezone upon email login so timezones don't end up blank.
FEATURE: add after-reviewable-post-user plugin outlet
Add a plugin outlet after reviewable post user
Add a basic user serializer that includes custom fields.
Allows review queue serializer to include custom fields for its users
If the feature is enabled, staff members can construct a URL and publish a
topic for others to browse without the regular Discourse chrome.
This is useful if you want to use Discourse like a CMS and publish
topics as articles, which can then be embedded into other systems.
Previously we were only updating group membership when a user record was
first created in an SSO setting.
This corrects it so we also update it if SSO changes the email
It wasn't intended that people should be able to earn trust level
3 without participating in public topics. When counting topic
views and likes given/received, don't count private topics.
Users noticed that sometimes, avatar from Gravatar is not correctly updated - https://meta.discourse.org/t/updated-image-on-gravatar-not-seeing-it-update-on-site/54357
A potential reason for that is that even if you update your avatar in Gravatar, URL stays the same and if the cache is involved, service is still receiving the old photo.
For example. In my case, when I click the button to refresh avatar the
new Upload record is created with `origin` URL to new avatar, and `url` to
old one
I made some tests in the rails console and adding random param to Gravatar URL is deceiving cache and correct, the newest avatar is downloaded
* DEPRECATION: Remove support for api creds in query params
This commit removes support for api credentials in query params except
for a few whitelisted routes like rss/json feeds and the handle_mail
route.
Several tests were written to valid these changes, but the bulk of the
spec changes are just switching them over to use header based auth so
that they will pass without changing what they were actually testing.
Original commit that notified admins this change was coming was created
over 3 months ago: 2db2003187
* fix tests
* Also allow iCalendar feeds
Co-authored-by: Rafael dos Santos Silva <xfalcox@gmail.com>
* FIX: guardian always got user but sometimes it is anonymous
```
def initialize(user = nil, request = nil)
@user = user.presence || AnonymousUser.new
@request = request
end
```
AnonymouseUser defines `blank?` method
```
class AnonymousUser
def blank?
true
end
...
end
```
so if we would use @user.present? it would be correct, however, just @user is always true
Previously all topic posters would be added which could lead to major performance issues. Now if there are too many posters, only the acting user will be added as a participant.
* FIX: FlagSockpuppets should not flag a post if a post of that user was already rejected by staff
* Update spec/services/flag_sockpuppets_spec.rb
Co-Authored-By: Robin Ward <robin.ward@gmail.com>
Co-authored-by: Robin Ward <robin.ward@gmail.com>
This is so users with huge amount of bookmarks do not have to wait a long time to see results.
* Add a bookmark list and list serializer to server-side to be able to handle paging and load more URL
* Use load-more component to load more bookmark items, 20 at a time in user activity
* Change the way current user is loaded for bookmark ember models because it was breaking/losing resolvedTimezone when loading more items
This fix ensures that if a staged user is linked to or quoted they won't
be emailed about it.
A staged user could email into a category, and another user could quote
them inside of a completely different category and we don't want a
staged user to receive an email for this.
Bug report:
https://meta.discourse.org/t/-/145202/9
Introduce the concept of "high priority notifications" which include PM and bookmark reminder notifications. Now bookmark reminder notifications act in the same way as PM notifications (float to top of recent list, show in the green bubble) and most instances of unread_private_messages in the UI have been replaced with unread_high_priority_notifications.
The user email digest is changed to just have a section about unread high priority notifications, the unread PM section has been removed.
A high_priority boolean column has been added to the Notification table and relevant indices added to account for it.
unread_private_messages has been kept on the User model purely for backwards compat, but now just returns unread_high_priority_notifications count so this may cause some inconsistencies in the UI.
* FEATURE: add setting `auto_approve_email_domains` to auto approve users
This commit adds a new site setting `auto_approve_email_domains` to
auto approve users based on their email address domain.
Note that if a domain already exists in `email_domains_whitelist` then
`auto_approve_email_domains` needs to be duplicated there as well,
since users won’t be able to register with email address that is
not allowed in `email_domains_whitelist`.
* Update config/locales/server.en.yml
Co-Authored-By: Robin Ward <robin.ward@gmail.com>
For example given a custom badge with SQL:
```
SELECT 1
-- I am a comment
```
You end up with
```
FROM (SELECT 1
-- I am a comment) q
```
This fix adds newlines so you end up with the now-valid:
```
FROM (
SELECT 1
-- I am a comment
) q
```
This adds rubocop-rspec, and enables some cops that were either already passing or are passing now, after fixing them in this commit.
Some new cops are disabled for now, with annotation: "TODO" or "To be decided". Those either need to be discussed first, or require manual changes, or the number of found and fixed offenses is too large to bundle them up in a single PR.
Includes:
* DEV: Update rubocop's `TargetRubyVersion` to 2.6
* DEV: Enable RSpec/VoidExpect
* DEV: Enable RSpec/SharedContext
* DEV: Enable RSpec/EmptyExampleGroup (Removed an obsolete empty spec file)
* DEV: Enable RSpec/ItBehavesLike
* DEV: Remove RSpec/ScatteredLet (It's too strict, as it doesn't recognize fab! as a let-like)
* DEV: Remove RSpec/MultipleExpectations
* FIX: Perform crop using user-specified image sizes
It used to resize the images to max width and height first and then
perform the crop operation. This is wrong because it ignored the user
specified image sizes from the Markdown.
* DEV: Use real images in test
Previously we would consider a user "present" and "last seen" if the
browser window was visible.
This has many edge cases, you could be considered present and around for
days just by having a window open and no screensaver on.
Instead we now also check that you either clicked, transitioned around app
or scrolled the page in the last minute in combination with window
visibility
This will lead to more reliable notifications via email and reduce load of
message bus for cases where a user walks away from the terminal
If the “secure media” site setting is enabled then ALL files uploaded to Discourse (images, video, audio, pdf, txt, zip etc. etc.) will follow the secure media rules. The “prevent anons from downloading files” setting will no longer have any bearing on upload security. Basically, the feature will more appropriately be called “secure uploads” instead of “secure media”.
This is being done because there are communities out there that would like all attachments and media to be secure based on category rules but still allow anonymous users to download attachments in public places, which is not possible in the current arrangement.
Additionally correctly handle cookie path for authentication_data
There were two bugs that exposed an interesting case where two discourse
instances hosted across two subfolder installs in the same domain
with oauth may clash and cause strange redirection on first login:
Log in to example.com/forum1. authentication_data cookie is set with path /
On the first redirection, the current authentication_data cookie is not unset.
Log in to example.com/forum2. In this case, the authentication_data cookie
is already set from forum1 - the initial page load will incorrectly redirect
the user to the redirect URL from the already-stored cookie, to /forum1.
This removes this issue by:
* Setting the cookie for the correct path, and not having it on root
* Correctly removing the cookie on first login
This fix ensures that when a topic title is edited the new title shows
up in the post webhook instead of the old title.
Rather than passing in the old topic object to the PostRevisor the
PostRevisor initializer will load the updated topic object inside of the
initializer if you don't pass it in. This will allow the post_edited
webhook to have the correct topic values.
Original bug reported at:
https://meta.discourse.org/t/post-edited-webhook-does-not-reflect-updated-topic-title/144722
Attempt 2, with more test.
Additionally correctly handle cookie path for authentication_data
There were two bugs that exposed an interesting case where two discourse
instances hosted across two subfolder installs in the same domain
with oauth may clash and cause strange redirection on first login:
Log in to example.com/forum1. authentication_data cookie is set with path /
On the first redirection, the current authentication_data cookie is not unset.
Log in to example.com/forum2. In this case, the authentication_data cookie
is already set from forum1 - the initial page load will incorrectly redirect
the user to the redirect URL from the already-stored cookie, to /forum1.
This removes this issue by:
Setting the cookie for the correct path, and not having it on root
Correctly removing the cookie on first login
Previous to this change slugs for leaves in 3 level nestings would not work
Our UX picks only the last two levels
This also makes the results consistent for slugs as it enforces order.
- Define the CSP based on the requested domain / scheme (respecting force_https)
- Update EnforceHostname middleware to allow secondary domains, add specs
- Add URL scheme to anon cache key so that CSP headers are cached correctly
New `duration` attribute is introduced for the `set_or_create_timer` method in the commit aad12822b7 for "based on last post" and "auto delete replies" topic timers.
Additionally correctly handle cookie path for authentication_data
There were two bugs that exposed an interesting case where two discourse
instances hosted across two subfolder installs in the same domain
with oauth may clash and cause strange redirection on first login:
Log in to example.com/forum1. authentication_data cookie is set with path /
On the first redirection, the current authentication_data cookie is not unset.
Log in to example.com/forum2. In this case, the authentication_data cookie
is already set from forum1 - the initial page load will incorrectly redirect
the user to the redirect URL from the already-stored cookie, to /forum1.
This removes this issue by:
* Setting the cookie for the correct path, and not having it on root
* Correctly removing the cookie on first login
* Preload custom fields for BookmarkQuery and add preload callback. Copy TopicQuery preload methodology to allow plugins to preload data for the BookmarkQuery. This fixes assigned plugin custom fields N1
* Include topic tags in initial query to avoid tags N1
Related: discourse/discourse-assign#63
* DEV: Replace User.unstage and User#unstage API with User#unstage!
Quoting @SamSaffron:
> User.unstage mixes concerns of both unstaging users and updating params which is fragile/surprising.
> u.unstage destroys notifications and raises a user_unstaged event prior to the user becoming unstaged and the user object being saved.
User#unstage! no longer updates user attributes and saves the object before triggering the `user_unstaged` event.
* Update one more spec
* Assign attributes after unstaging
* Improve the bookmark mobile on modal so it doesn't go all the way to the edge and the custom datetime input is easier to use
* Improve the rake task for syncing so it does not error for topics that no longer exist and batches 2000 inserts at a time, clearing the array each time
Meta report: https://meta.discourse.org/t/short-url-secure-uploads-s3/144224
* if the show_short route is hit for an upload that is
secure, we redirect to the secure presigned URL. however
this was not taking into account multisite so the db name
was left off the path which broke the presigned URL
* we now use the correct url_for method if we know the
upload (like in the show_short case) which takes into
account multisite
On some sites when bootstrapping communities it is helpful to bootstrap
with a "light weight" invite code.
Use the site setting `invite_code` to set a global invite code.
In this case the administrator can share the code with
a community which is very easy to remember and then anyone who has
that code can easily register accounts.
People without the invite code are not allowed account registration.
Global invite codes are less secure than indevidual codes, in that they
tend to leak in the community however in some cases when starting a brand
new community the security guarantees of invites are not needed.
Rails calls I18n.translate during initialization and by default translation overrides are used. Database migrations would fail if the system tried to migrate from an old version that didn't have the `translation_overrides` table with all its columns yet.
This makes restoring really old backups work again. Running `DISABLE_TRANSLATION_OVERRIDES=1 rake db:migrate` will allow you to upgrade such an old database as well.
Having a tag be a member of a tag group and the group's parent tag at
the same time causes some unexpected behavior. When a tag is assigned
as the parent, remove it from the group.
Two behaviors in the mail gem collide:
1. Attachments are added as extra parts at the top level,
2. When there are both text and html parts, the content type is set to
'multipart/alternative'.
Since attachments aren't alternative renderings, for emails that contain
attachments and both html and text parts, some coercing is necessary.
Adds 3 config values that allow to set a custom provider of Gravatar-like API accessible from gravatar_base_url. The gravatar_name is purely cosmetic, but helps with associating name with the service that actually provides the avatars. gravatar_login_url is a link relative to gravatar_base_url, which provides the user with the login to the Gravatar service
* This PR changes the user activity bookmarks stream to show a new list of bookmarks based on the Bookmark record.
* If a bookmark has a name or reminder it will be shown as metadata above the topic title in the list
* The categories, tags, topic status, and assigned show for each bookmarked post based on the post topic
* Bookmarks can be deleted from the [...] menu in the list
* As well as this, the list of bookmarks from the quick access panel is now drawn from the Bookmarks table for a user:
* All of this new functionality is gated behind the enable_bookmarks_with_reminders site setting
The /bookmarks/ route now redirects directly to /user/:username/activity/bookmarks-with-reminders
* The structure of the Ember for the list of bookmarks is not ideal, this is an MVP PR so we can start testing this functionality internally. There is a little repeated code from topic.js.es6. There is an ongoing effort to start standardizing these lists that will be addressed in future PRs.
* This PR also fixes issues with feature detection for at_desktop bookmark reminders
A custom date and time can now be selected for a bookmark reminder
The reminder will not happen at the exact time but rather at the next 5 minute interval of the bookmark reminder schedule.
This PR also fixes issues with bulk deleting topic bookmarks.
* This PR implements the scheduling and notification system for bookmark reminders. Every 5 minutes a schedule runs to check any reminders that need to be sent before now, limited to **300** reminders at a time. Any leftover reminders will be sent in the next run. This is to avoid having to deal with fickle sidekiq and reminders in the far-flung future, which would necessitate having a background job anyway to clean up any missing `enqueue_at` reminders.
* If a reminder is sent its `reminder_at` time is cleared and the `reminder_last_sent_at` time is filled in. Notifications are only user-level notifications for now.
* All JavaScript and frontend code related to displaying the bookmark reminder notification is contained here. The reminder functionality is now re-enabled in the bookmark modal as well.
* This PR also implements the "Remind me next time I am at my desktop" bookmark reminder functionality. When the user is on a mobile device they are able to select this option. When they choose this option we set a key in Redis saying they have a pending at desktop reminder. The next time they change devices we check if the new device is desktop, and if it is we send reminders using a DistributedMutex. There is also a job to ensure consistency of these reminders in Redis (in case Redis drops the ball) and the at desktop reminders expire after 20 days.
* Also in this PR is a fix to delete all Bookmarks for a user via `UserDestroyer`
* Remove some `.es6` from comments where it does not matter
* Use a post processor for transpilation
This will allow us to eventually use the directory structure to
transpile rather than the extension.
* FIX: Some errors and clean up in confirm-new-email
It would throw an error if the webauthn element wasn't present.
Also I changed things so that no-module is not explicitly
referenced.
* Remove `no-module`
Instead we allow a magic comment: `// discourse-skip-module` to prevent
the asset pipeline from creating a module.
* DEV: Enable babel transpilation based on directory
If it's in `app/assets/javascripts/dicourse` it will be transpiled
even without the `.es6` extension.
* REFACTOR: Remove Tilt/ES6ModuleTranspiler
There are three modifiers:
- serialize_topic_excerpts (boolean)
- csp_extensions (array of strings)
- svg_icons (array of strings)
When multiple themes are active, the values will be combined. The combination method varies based on the setting. CSP/SVG arrays will be combined. serialize_topic_excerpts will use `Enumerable#any`.
This commit ensures that an error is thrown when a user fails to be
removed from a group instead of silently failing.
This means when using the api you will receive a 400 instead of a 200 if
there is a failure. The remove group endpoint allows the removal of
multiple users, this change means that if you try to delete 10 users,
but 1 of them fails you will receive a 400 instead of 200 even though
the other 9 were removed successfully. Rather than adding a bunch more
complexity I think this is more than adequate for most use cases.
PostMover passes to PostCreator a `created_at` that is a `ActiveSupport::WithTimeZone` instance (and also `is_a? Time`). Previously it was always being passed through `Time.zone.parse` so it would lose sub-second information. Now, it takes `Time` input as-is, while still parsing other types.
* DEV: Reserve webhook event types to be used in plugins
Based on feedback on the following PR's:
https://github.com/discourse/discourse-solved/pull/85https://github.com/discourse/discourse-assign/pull/61
This commit reserves ID's to be used for webhook event types to ensure
that some other webhook or plugin doesn't end up using the same ID.
* Fix broken test
I don't think this test has to test ALL event types to verify that this
feature is working. Now that we added some event types that plugins are
using this test was failing for missing fabricators that exist in the
respective plugins.
* remove loop and just test first record
Introduces `/user-cards.json`
Also allows the client-side user model to be passed an existing promise when loading, so that multiple models can share the same AJAX request
Meta: https://meta.discourse.org/t/improve-error-message-when-not-including-name-setting-up-totp/143339
* when the user creates a TOTP second factor method we want
to show them a nicer error if they forget to add a name
or the code from the app, instead of the param missing error
* also add a client-side check for this and for security key name,
no need to bother the server if we can help it
Anonymous users could query the invite json and see counts and
summaries which is not allowed in the UX of Discourse.
This commit has those endpoints return a 403 unless the user is
allowed to invite.
When secure media is enabled and an attachment is marked as secure we want to use the full url instead of the short-url so we get the same access control post protections as secure media uploads.
* Add uploads:sync_s3_acls rake task to ensure the ACLs in S3 are the correct (public-read or private) setting based on upload security
* Improved uploads:disable_secure_media to be more efficient and provide better messages to the user.
* Rename uploads:ensure_correct_acl task to uploads:secure_upload_analyse_and_update as it does more than check the ACL
* Many improvements to uploads:secure_upload_analyse_and_update
* Make sure that upload.access_control_post is unscoped so deleted posts are still fetched, because they still affect the security of the upload.
* Add escape hatch for capture_stdout in the form of RAILS_ENABLE_TEST_STDOUT. If provided the capture_stdout code will be ignored, so you can see the output if you need.
* FIX: We need to skip users with associated reviewables when auto-approving them
* Update spec/initializers/track_setting_changes_spec.rb
* Update spec/initializers/track_setting_changes_spec.rb
Co-authored-by: Robin Ward <robin.ward@gmail.com>
Introduces a new site setting `max_notifications_per_user`.
Out-of-the-box this is set to 10,000. If a user exceeds this number of
notifications, we will delete the oldest notifications keeping only 10,000.
To disable this safeguard set the setting to 0.
Enforcement happens weekly.
This is in place to protect the system from pathological states where a
single user has enormous amounts of notifications causing various queries
to time out. In practice nobody looks back more than a few hundred notifications.
When looking for the first paragraph with content in a post,
it was matching the lightboxed image paragraph as "<p></p>".
Fix that and other potential empty paragraphs with the
p:not(:empty) selector.
Add a new selector to find the image links in lightboxed
images as valid content for emails.
* Also fixes an issue where if webp was a downloaded hotlinked
image and then secure + sent in an email, it was not being
redacted because webp was not a supported media format in
FileHelper
* Webp originally removed as an image format in
https://github.com/discourse/discourse/pull/6377
and there was a spec to make sure a .bin webp
file did not get renamed from its type to webp.
However we want to support webp images now to make
sure they are properly redacted if secure media is
on, so change the example in the spec to use tiff,
another banned format, instead
* Attachments (non media files) were being marked as secure if just
SiteSetting.prevent_anons_from_downloading_files was enabled. this
was not correct as nothing should be marked as actually "secure" in
the DB without that site setting enabled
* Also add a proper standalone spec file for the upload security class
This is because the TOTP gem identifies as a colon as an addressable
protocol. The solution for now is to remove the colon in the issuer
name.
Changing the issuer changes the token values, but now it was completely
broken for colons so this should not be breaking anyone new.
A follow-up correction to this change https://github.com/discourse/discourse/pull/9001.
When admin changes staff email still enforce old email confirm. Only allow auto-confirm of a new email by admin IF the target user is not also an admin. If an admin gets locked out of their email the site admin can use the rails console to solve the issue in a pinch.
When admin changes a user's email from the preferences page of that user:
* The user will not be sent an email to confirm that their
email is changing. They will be sent a reset password email
so they can set the password for their account at the new
email address.
* The user will still be sent an email to their old email to inform
them that it was changed.
* Admin and staff users still need to follow the same old + new
confirm process, as do users changing their own email.
If a group mention could be notified on preview it was given an `<a>`
tag with the `.notify` class. When cooked it would display differently.
This patch makes the server side cooking match the client preview.
Further on from my earlier PR #8973 also reject upload as secure if its origin URL contains images/emoji. We still check Emoji.all first to try and be canonical.
This may be a little heavy handed (e.g. if an external URL followed this same path it would be a false positive), but there are a lot of emoji aliases where the actual Emoji url is something, but you can have another image that should not be secure that that thing is an alias for. For example slight_smile.png does not show up in Emoji.all BUT slightly_smiling_face does, and it aliases slight_smile e.g. /images/emoji/twitter/slight_smile.png?v=9 and /images/emoji/twitter/slightly_smiling_face.png?v=9 are equivalent.
The rake task was broken, because the addition of the
UploadSecurity check returned true/false instead of the
upload ID to determine which uploads to set secure.
Also it was rebaking the posts in the wrong place and
pretty inefficiently at that. Also it was rebaking before
the upload was being changed to secure in the DB.
This also updates the task to set the access_control_post_id
for all uploads. the first post the upload is linked to is used
for the access control. if the upload doesn't get changed to
secure this doesn't affect anything.
Added a spec for the rake task to cover common cases.
Sometimes PullHotlinkedImages pulls down a site emoji and creates a new upload record for it. In the cases where these happen the upload is not created via the normal path that custom emoji follows, so we need to check in UploadSecurity whether the origin of the upload is based on a regular site emoji. If it is we never want to mark it as secure (we don't want emoji not accessible from other posts because of secure media).
This only became apparent because the uploads:ensure_correct_acl rake task uses UploadSecurity to check whether an upload should be secure, which would have marked a whole bunch of regular-old-emojis as secure.
Now if a group is visible but unmentionable, users can search for it
when composing by typing with `@`, but it will be rendered without the
grey background color.
It will also no longer pop up a JIT warning saying "You are about to
mention X people" because the group will not be mentioned.
After adding a tag as a synonym of another tag,
both tags will have the wrong topic counts. It's
corrected within 12 hours by the EnsureDbConsistency
job. This fix ensures the topic counts are updated
much sooner.
* FIX: when unread reply notification exists don't create new
From time to time, the user is creating a reply post and then they want to add additional details. They edit an existing post and for example, add a quote from a previous one.
In that situation, if the user to whom reply was directed to already have the unread notification, we should not create the new one.
That behaviour was mentioned here: https://meta.discourse.org/t/reply-then-edit-to-add-quote-notification-redundancy/138358
* FIX: dont create new notification if already exists
* Because custom emoji count as post "uploads" we were
marking them as secure when updating the secure status for post uploads.
* We were also giving them an access control post id, which meant
broken image previews from 403 errors in the admin custom emoji list.
* We now check if an upload is used as a custom emoji and do not
assign the access control post + never mark as secure.
### UI Changes
If `SiteSetting.enable_bookmarks_with_reminders` is enabled:
* Clicking "Bookmark" on a topic will create a new Bookmark record instead of a post + user action
* Clicking "Clear Bookmarks" on a topic will delete all the new Bookmark records on a topic
* The topic bookmark buttons control the post bookmark flags correctly and vice-versa
Disabled selecting the "reminder type" for bookmarks in the UI because the backend functionality is not done yet (of sending users notifications etc.)
### Other Changes
* Added delete bookmark route (but no UI yet)
* Added a rake task to sync the old PostAction bookmarks to the new Bookmark table, which can be run as many times as we want for a site (it will not create duplicates).
The commit: 75069ff179
allows users to remove their primary group, but this introduced a bug
where if you were to edit any other profile info like location or
website which is a form on a separate page then the flair dropdown,
would cause the selected flair to be removed.
This fix ensures that if the `primary_group_id` parameter is missing
from the update payload it does not remove the existing
`primary_group_id`. It will only remove the `primary_group_id` if it is
present in the payload and empty.
This is not used in core or official plugins, and has been printing a deprecation notice since v2.3.0beta4. All OpenID 2.0 code and dependencies have been dropped. The user_open_ids table remains for now, in case anyone has missed the deprecation notice, and needs to migrate their data.
Context at https://meta.discourse.org/t/-/113249
This commit removes logic about spoilers because it should live inside
of the discourse-spoiler-alert plugin.
This PR:
https://github.com/discourse/discourse-spoiler-alert/pull/38
also completely removes spoilers from excerpts in order to keep them
from leaking in topic previews and notifications.
Extracted from #8772
This will allow developers (in rails development mode only) to log pre-loaded JSON app data to the browser console for inspection.
When a tag is restricted to a secured category that the user can't see,
the message was saying that it wasn't restricted to any categories.
Now it will say it's restricted to categories you can't access.
Some auth providers (e.g. Auth0 with default configuration) send the email address in the name field. In Discourse, the name field is made public, so this commit adds a safeguard to prevent emails being made public.
* DEV: Use Ember 3.12.2
* Add Ember version to ThemeField's DEPENDENT_CONSTANTS
* DEV: Use `id` instead of `elementId` (See: https://github.com/emberjs/ember.js/issues/18147)
* FIX: Don't leak event listeners (bug introduced in 999e2ff)
For some reasons, we have two ways of associating "custom fields" to a new topic:
using 'meta_data' and 'custom_fields'.
However, if we were to provide both arguments, the 'meta_data' would be overwritten
by any 'custom_fields' provided.
This commit ensures we can use both and merges the 'custom_fields' with the 'meta_data'.
This fix ensures that the site setting `post_edit_time_limit` does not
bypass the limit of the site setting `min_trust_to_edit_post`. This
prevents a bug where users that did not meet the minimum trust level to
edit could edit the title of topics.
Previously you'd get a server side generic error due to a password check
failing. Now the input element has a maxlength attribute and the server
side will respond with a nicer error message if the value is too long.
If our reply tree somehow ends up with cycles or other odd
structures, we only want to consider a reply once, at the first
level in the tree that it appears.
* DEV: Add data-notification-level attribute to category UI
* Show muted categories on the category page by default
This reverts commit ed9c21e42c.
* Remove redundant spec - muted categories are now visible by default
It seems in some situations replies have been moved to other topics but
the `PostReply` table has not been updated. I will try and fix this in a
follow up PR, but for now this fix ensures that every time we ask a post
for its replies that we restrict it to the same topic.
This commit adds support for an optional "logout" parameter in the
payload of the /session/sso_provider endpoint. If an SSO Consumer
adds a "logout=true" parameter to the encoded/signed "sso" payload,
then Discourse will treat the request as a logout request instead
of an authentication request. The logout flow works something like
this:
* User requests logout at SSO-Consumer site (e.g., clicks "Log me out!"
on web browser).
* SSO-Consumer site does whatever it does to destroy User's session on
the SSO-Consumer site.
* SSO-Consumer then redirects browser to the Discourse sso_provider
endpoint, with a signed request bearing "logout=true" in addition
to the usual nonce and the "return_sso_url".
* Discourse destroys User's discourse session and redirects browser back
to the "return_sso_url".
* SSO-Consumer site does whatever it does --- notably, it cannot request
SSO credentials from Discourse without the User being prompted to login
again.
* the spec to check if changing the topic between PM and
public to see if the upload security status is changed
is already covered extensively in topic_upload_security_manager_spec.rb
If someone only had security keys enabled, the icon to say they had 2FA enabled would not show in the admin staff user list. It would only show if they had TOTP enabled.
When we change upload's sha1 (e.g. when resizing images) it won't match the data in the most recent S3 inventory index. With this change the uploads that have been updated since the inventory has been generated are ignored.
When FinalDestination is given a URL it encodes it before doing anything else. however S3 presigned URLs should not be messed with in any way otherwise we can end up with 400 errors when downloading the URL e.g.
<Error><Code>InvalidToken</Code><Message>The provided token is malformed or otherwise invalid.</Message>
The signature of presigned URLs is very important and is automatically generated and should be preserved.
This should make the importer more resilient to incomplete or damaged
backups. It will disable some validations and attempt to automatically
repair category permissions before importing.
For example /t/ URLs were being replaced if they contained secure-media-uploads so if you made a topic called "Secure Media Uploads Are Cool" the View Topic link in the user notifications would be stripped out.
Refactored code so this secure URL detection happens in one place.
When 'categories topics' setting is set to 0, the system will
automatically try to find a value to keep the two columns (categories
and topics) symmetrical.
The value is computed as 1.5x the number of top level categories and at
least 5 topics will always be returned.
Previously if somehow a user created a blank markdown document using tag
tricks (eg `<p></p><p></p><p></p><p></p><p></p><p></p>`) and so on, we would
completely strip the document down to blank on post process due to onebox
hack.
Needs a followup cause I am still unclear about the reason for empty p stripping
and it can cause some unclear cases when we re-cook posts.
Basically, say you had already downloaded a certain image from a certain URL
using pull_hotlinked_images and the onebox. The upload would be stored
by its sha as an upload record. Whenever you linked to the same URL again
in a post (e.g. in our case an og:image on review.discourse) we would
would reuse the original upload record because of the sha1.
However when you turned on secure media this could cause problems as
the first post that uses that upload after secure media is enabled
will set the access control post for the upload to the new post.
Then if the post is deleted every single onebox/link to that same image
URL will fail forever with 403 as the secure-media-uploads URL fails
if the access control post has been deleted.
To fix this when cooking posts and pulling hotlinked images, we only
allow using an original upload by URL if its access control post
matches the current post, and if the original_sha1 is filled in,
meaning it was uploaded AFTER secure media was enabled. otherwise
we just redownload the media again to be safe, as the URL will always
be new then.
Regression was created here:
https://github.com/discourse/discourse/pull/8750
When tag or category is added and the user is watching that category/tag
we changed notification type to `edited` instead of `new post`.
However, the logic here should be a little bit more sophisticated.
If the user has already seen the post, notification should be `edited`.
However, when user hasn't yet seen post, notification should be "new
reply". The case for that is when for example topic is under private
category and set for publishing later. In that case, we modify an
existing topic, however, for a user, it is like a new post.
Discussion on meta:
https://meta.discourse.org/t/publication-of-timed-topics-dont-trigger-new-topic-notifications/139335/13
Previously the badge was granted one month after the last time the badge was granted. The exact date shifted by one day each month. The new logic tries to grant the badge always at the beginning of a new month by looking at new users of the previous month. The "granted at" date is set to the end of the previous month.
Adds a new route `/u/{username}/card.json`, which has a reduced number of fields. This change is behind a hidden site setting, so we can test compatibility before rolling out.
The new search modifier `in:all` can be used to include both public and personal messages in the same search.
Co-authored-by: adam j hartz <hz@mit.edu>
When pull_hotlinked_images tried to run on posts with secure media (which had already been downloaded from external sources) we were getting a 404 when trying to download the image because the secure endpoint doesn't allow anon downloads.
Also, we were getting into an infinite loop of pull_hotlinked_images because the job didn't consider the secure media URLs as "downloaded" already so it kept trying to download them over and over.
In this PR I have also refactored secure-media-upload URL checks and mutations into single source of truth in Upload, adding a SECURE_MEDIA_ROUTE constant to check URLs against too.
* FEATURE: Replace existing badge owners when using the bulk award feature
* Use ActiveRecord to sanitize title update query, Change replace checkbox text
Co-Authored-By: Robin Ward <robin.ward@gmail.com>
Co-authored-by: Robin Ward <robin.ward@gmail.com>
* DEV: Add a fake Mutex that for concurrency testing with Fibers
* DEV: Support running in sleep order in concurrency tests
* FIX: A separate FallbackHandler should be used for each redis pair
This commit refactors the FallbackHandler and Connector:
* There were two different ways to determine whether the redis master
was up. There is now one way and it is the responsibility of the
new RedisStatus class.
* A background thread would be created whenever `verify_master` was
called unless the thread already existed. The thread would
periodically check the status of the redis master. However, checking
that a thread is `alive?` is an ineffective way of determining
whether it will continue to check the redis master in the future
since the thread may be in the process of winding down.
Now, this thread is created when the recorded master status goes from
up to down. Since this thread runs the only part of the code that is
able to bring the recorded status up again, we ensure that only one
thread is probing the redis master at a time and that there is always
a thread probing redis master when it is recorded as being down.
* Each time the status of the redis master was checked periodically, it
would spawn a new thread and immediately join on it. I assume this
happened to isolate the check from the current execution, but since
the join rethrows exceptions in the parent thread, this was not
effective.
* The logic for falling back was spread over the FallbackHandler and
the Connector. The connector is now a dumb object that delegates
responsibility for determining the status of redis to the
FallbackHandler.
* Previously, failing to connect to a master redis instance when it was
not recorded as down would raise an exception. Now, this exception is
passed to `Discourse.warn_exception` and the connection is made to
the slave.
This commit introduces the FallbackHandlers singleton:
* It is responsible for holding the set of FallbackHandlers.
* It adds callbacks to the fallback handlers for when a redis master
comes up or goes down. Main redis and message bus redis may exist on
different or the same redis hosts and so these callbacks may all
exist on the same FallbackHandler or on separate ones.
These objects are tested using fake concurrency provided by the
Concurrency module:
* An `around(:each)` hook is used to cause each test to run inside a
Scenario so that the test body, mocking cleanup and `after(:each)`
callbacks are run in a different Fiber.
* Therefore, holting the execution of the Execution abruptly (so that
the fibers aren't run to completion), prevents the mocking cleaning
and `after(:each)` callbacks from running. I have tried to prevent
this by recovering from all exceptions during an Execution.
* FIX: Create frozen copies of passed in config where possible
* FIX: extract start_reset method and remove method used by tests
Co-authored-by: Daniel Waterworth <me@danielwaterworth.com>
Add TopicUploadSecurityManager to handle post moves. When a post moves around or a topic changes between categories and public/private message status the uploads connected to posts in the topic need to have their secure status updated, depending on the security context the topic now lives in.
When we were pulling hotlinked images for oneboxes in the CookedPostProcessor, we were using the direct S3 URL, which returned a 403 error and thus did not set widths and heights of the images. We now cook the URL first based on whether the upload is secure before handing off to FastImage.
group membership and `CategoryUser` notification level should be
respected to determine whether to notify staged users about activity in
private categories, instead of only ever generating notifications for staged
users' own topics (which has been the behaviour since
0c4ac2a7bc)
Let's say post #2 quotes post number #1. If a user decides to quote the
quote in post #2, it should keep the information of post #1
("user_1, post: 1, topic: X"), instead of replacing with current post
info ("user_2, post: 2, topic: X").
* enqueue spam/dmarc failing emails instead of hiding
* add translations for dmarc/spam enqueued reasons
* unescape quote
* if email_in_authserv_id is blank return gray for all emails
On some customer forums we are randomly getting a "You must select a valid user" error when sending a PM even when all parameters seem to be OK. This is an attempt to track it down with more data.
There is a feature, that when tag or category is added to the topic,
customers who are watching that category or tag are notified.
The problem is that it is using default notification type "new post"
It would be better to use "new post" only when there really is a new
post and "edited" when categories or tags were modified.
Previously if local login via email was disabled because of the site setting or because SSO was enabled, we were raising a 500 error. We now raise a 403 error instead; we shouldn't raise 500 errors on purpose, instead keeping that code for unhandled errors. It doesn't make sense in the context of what we are validating either to raise a 500.
This fix allows a user to remove their currently assigned primary group
if the Site Setting `user selected primary groups` is enabled.
Before this fix, if a user selected "none" for their primary group it
would silently fail and never be updated.
Custom emoji, profile background, and card background were being set to secure, which we do not want as they are always in a public context and result in a 403 error from the ACL if linked directly.
* When we refactored away the admin-login route we introduced a bug where admins could not log into an SSO enabled site, because of a check in the email_login route that disallowed this.
* Allow admin to get around this check.
### General Changes and Duplication
* We now consider a post `with_secure_media?` if it is in a read-restricted category.
* When uploading we now set an upload's secure status straight away.
* When uploading if `SiteSetting.secure_media` is enabled, we do not check to see if the upload already exists using the `sha1` digest of the upload. The `sha1` column of the upload is filled with a `SecureRandom.hex(20)` value which is the same length as `Upload::SHA1_LENGTH`. The `original_sha1` column is filled with the _real_ sha1 digest of the file.
* Whether an upload `should_be_secure?` is now determined by whether the `access_control_post` is `with_secure_media?` (if there is no access control post then we leave the secure status as is).
* When serializing the upload, we now cook the URL if the upload is secure. This is so it shows up correctly in the composer preview, because we set secure status on upload.
### Viewing Secure Media
* The secure-media-upload URL will take the post that the upload is attached to into account via `Guardian.can_see?` for access permissions
* If there is no `access_control_post` then we just deliver the media. This should be a rare occurrance and shouldn't cause issues as the `access_control_post` is set when `link_post_uploads` is called via `CookedPostProcessor`
### Removed
We no longer do any of these because we do not reuse uploads by sha1 if secure media is enabled.
* We no longer have a way to prevent cross-posting of a secure upload from a private context to a public context.
* We no longer have to set `secure: false` for uploads when uploading for a theme component.
Some specs use psql to test database restores and dropping the table after the test needs to happen outside of rspec because of transactions. The previous attempt lead to some changes to be stored in the test database.
FIX: raised a proper NotFound exception when filtering groups by username with invalid username.
FIX: properly filter the groups based on current user visibility when viewing another user's groups.
DEV: Guardian.can_see_group?(group) is now using Guardian.can_see_groups(groups) instead of duplicating the same code.
FIX: spec for groups_controller#index when group directory is disabled for logged in user.
FIX: groups_controller.sortable specs to actually test all sorting combinations.
DEV: s/response_body/body/g for slightly shorter spec code.
FIX: rewrote the "view another user's groups" specs to test all group_visibility and members_group_visibility combinations.
DEV: Various refactoring for cleaner and more consistent code.
* UI: Mass grant a badge from the admin ui
* Send the uploaded CSV and badge ID to the backend
* Read the CSV and grant badge in batches
* UX: Communicate the result to the user
* Don't award if badge is disabled
* Create a 'send_notification' method to remove duplicated code, slightly shrink badge image. Replace router transition with href.
* Dynamically discover current route
When using the login confirmation screen, the referrer URL is `/auth/{provider}`. That means that the user is redirected back to the confirmation screen after logging in, even though login was successful. This is very confusing. Instead, they should be redirected to the homepage.
if SiteSetting.secure_media is disabled we still want to
redirect to the signed url for uploads that are marked as
secure because their ACLs are probably still private
* Add a rake task to disable secure media. This sets all uploads to `secure: false`, changes the upload ACL to public, and rebakes all the posts using the uploads to make sure they point to the correct URLs. This is in a transaction for each upload with the upload being updated the last step, so if the task fails it can be resumed.
* Also allow viewing media via the secure url if secure media is disabled, redirecting to the normal CDN url, because otherwise media links will be broken while we go and rebake all the posts + update ACLs
6e1fe22 introduced the possiblity for category_users to have a NULL notification_level, so that we can store `last_seen_at` dates without locking the notification level. At the time, this did not affect the topic-tracking-state query. However, the query changes in f434de2 introduced a slight change in behavior.
Previously, a subquery would look for a category_user with notification_level=mute. f434de2 refactored this to remove the subquery, and inverted some of the logic to suit.
The new query checked for `notification_level <> :muted`. If `notification_level` is NULL, this comparison will return NULL. In this scenario, notification_level=NULL means that we should fall back to the default tracking level (regular), and so we want the expression to resolve as true, not false. There was already a check for the existence of the category_users row, but it did not check for the existence of a NOT NULL notification_level.
This commit amends the expression so that the notification_level will only be compared if it is non-null.
* FIX: bulk insert to create application requests
* FIX: bulk insert to create topics
* FIX: no need to create separate user for each topic, post etc.
* FIX: Another bulk_insert of ApplicationRequests
* FIX: dont create user and topic instances when not neccessary
* FIX: merge examples with expensive setup into one example
This ensures that the user object is created fresh for each example.
This is required for this particular spec as we can not risk having a stale
object, which can lead to a flaky spec.
Providing invalid dates as the end_date or start_date param causes a 500 error and creates noise in the logs. This will handle the error and returns a proper 400 response to the client with a message that explains what the problem is.
This is required for people using apps with custom protocols. We still verify the entire URL (including protocol) against the site setting value.
Refactored wildcard_url_checker so that it always returns a boolean, rather than sometimes returning a regex match.
Added a fix to gracefully error with a Webauthn::SecurityKeyError if somehow a user provides an unkown COSE algorithm when logging in with a security key.
If `COSE::Algorithm.find` returns nil we now fail gracefully and log the algorithm used along with the user ID and the security key params for debugging, as this will help us find other common algorithms to implement for webauthn
- Refactor source_url to avoid using eval in development
- Precompile handlebars in development
- Include template compilers when running qunit
- Remove unsafe-eval in development CSP
- Include unsafe-eval only for qunit routes in development
Previously, categories without any topics were being excluded from the UPDATE query. This means the counter gets stuck, and the category cannot be deleted. This change ensures that the counters get correctly set to zero.
Restore tl3 reachability by calculating penalty counts vs unsuspend/unsilence.
Only count unsuspend or unsilences that have been made by a user other than
the Discourse system user.
People rarely want to have their avatars show up as the preview image on social media platforms. Instead, we should fall back to the site opengraph image.
It used to check how many quotes were inside a post, without taking
considering that some quotes can contain other quotes. This commit
selects only top level quotes.
I had to use XPath because I could not find an equivalent CSS
selector.
A small fix for Basic User Serializers where some downstream serializers do not correctly set user objects. This caused some issues in certain plugins that depend on the user method to return a user.
Meta thread: https://meta.discourse.org/t/sending-a-pm-with-the-following-title-causes-an-error/135654/3
We had an issue where if someone sent a PM with crazy
characters that are stripped and we end up with only
a number, the topic redirect errored because the slug was
a number. so instead we return the default as well if
the slug is a number after prettification
The ROTP gem is only used in a very small amount of places in the app, we don't need to globally require it.
Also set the Addressable gem to not have a specific version range, as it has not been a problem yet.
Some slight refactoring of UserSecondFactor here too to use SecondFactorManager to avoid code repetition
This should catch a few scenarios which can waste a lot of time in development
- Forgetting to run migrations
- Missing plugin migrations
- Missing post_deploy migrations
API keys are now only visible when first created. After that, only the first four characters are stored in the database for identification, along with an sha256 hash of the full key. This makes key usage easier to audit, and ensures attackers would not have access to the live site in the event of a database leak.
This makes the merge lower risk, because we have some time to revert if needed. Once the change is confirmed to be working, we will add a second commit to drop the `key` column.
Hide old bookmark post-menu item if the site setting for the new bookmark reminders is enabled and change icon for the new bookmark functionality to the same as the old bookmark button
Fix null @topic_view error in post serializer for post_bookmark, as new posts do not have a @topic_view
This is a slight workaround which helps somewhat now but is pending a larger
fix.
When this spec ran in parallel mode uploads could start cross talking and
an upload you expect to be there may vanish.
This works around the issue by making the upload unique every time it is
created
It also folds up an expensive test into the main one.
The following methods have long been deprecated in ruby due to flaws in their implementation per http://blade.nagaokaut.ac.jp/cgi-bin/vframe.rb/ruby/ruby-core/29293?29179-31097:
URI.escape
URI.unescape
URI.encode
URI.unencode
escape/encode are just aliases for one another. This PR uses the Addressable gem to replace these methods with its own encode, unencode, and encode_component methods where appropriate.
I have put all references to Addressable::URI here into the UrlHelper to keep them corralled in one place to make changes to this implementation easier.
Addressable is now also an explicit gem dependency.
Note: All of this functionality is hidden behind a hidden, default false, site setting called `enable_bookmarks_with_reminders`. Also, any feedback on Ember code would be greatly appreciated!
This is part 1 of the bookmark improvements. The next PR will address the backend logic to send reminder notifications for bookmarked posts to users. This PR adds the following functionality:
* We are adding a new `bookmarks` table and `Bookmark` model to make the bookmarks a first-class citizen and to allow attaching reminders to them.
* Posts now have a new button in their actions menu that has the icon of an actual book
* Clicking the button opens the new bookmark modal.
* Both name and the reminder type are optional.
* If you close the modal without doing anything, the bookmark is saved with no reminder.
* If you click the Cancel button, no bookmark is saved at all.
* All of the reminder type tiles are dynamic and the times they show will be based on your user timezone set in your profile (this should already be set for you).
* If for some reason a user does not have their timezone set they will not be able to set a reminder, but they will still be able to create a bookmark.
* A bookmark can be deleted by clicking on the book icon again which will be red if the post is bookmarked.
This PR does NOT do anything to migrate or change existing bookmarks in the form of `PostActions`, the two features live side-by-side here. Also this does nothing to the topic bookmarking.
We like to stay as close as possible to latest with rubocop cause the cops
get better.
This update required some code changes, specifically the default is to avoid
explicit returns where implicit is done
Also this renames a few rules
When the tag is muted and topic contains that tag, we should not mark that message as NEW.
There are 3 possible settings which site admin can set.
remove_muted_tags_from_latest - always
It means that if the topic got at least one muted tag, we should not mark that topic as NEW
remove_muted_tags_from_latest - only muted
Similar to above, however, if at least one tag is not muted, the topic is marked as NEW
remove_muted_tags_from_latest - never
Basically, mute tag setting is ignored and all topics are set as NEW
* DEV: Add API to alter uploads Markdown
* DEV: Extract data attributes from image / download Markdown
For example '[test|attachment|hello=world]' will generate an 'a' element
with a data attribute: 'data-hello=world'.
This commit also makes MarkdownIt to transform '|attachment' into
'class="attachment"'. This transformation used to be a part of the
process which resolves short URLs (i.e. upload://).
* DEV: Export imageNameFromFileName
Non UTF-8 user_agent requests were bypassing logging due to PG always
wanting UTF-8 strings.
This adds some conversion to ensure we are always dealing with UTF-8
Previously it was unclear why certain gems are being held back cause Gemfile
had no comment explaining it.
I tried to add some explanation from memory and remove some exceptions that
seemed to be superfluous.
This upgrades shoulda to latest, it appears to work once a couple of assertions
are removed
Also update http accept language used to auto detect language from http header
this is tested
Zeitwerk small update seems fine
This fixes the following issues:
* The link element on the lightbox which pops open the lightbox was linking to the S3 URL with a private ACL instead of the secure media URL for the image
* Change to use `@post.with_secure_media?` in `CookedPostProcessor` for URL cooking, as in some cases, like when a post is edited and an upload is added, `upload.secure?` can be false which resulted in `srcset` URLs not being cooked correctly to secure media upload urls.
This feature adds the ability to define synonyms for tags, and the ability to merge one tag into another while keeping it as a synonym. For example, tags named "js" and "java-script" can be synonyms of "javascript". When searching and creating topics using synonyms, they will be mapped to the base tag.
Along with this change is a new UI found on each tag's page (for example, `/tags/javascript`) where more information about the tag can be shown. It will list the synonyms, which categories it's restricted to (if any), and which tag groups it belongs to (if tag group names are public on the `/tags` page by enabling the "tags listed by group" setting). Staff users will be able to manage tags in this UI, merge tags, and add/remove synonyms.
This bug was causing some unusual behavior when the last post is filtered (e.g. from an ignored user). In some situations this would cause suggested topics to be omitted from the payload.
The next_page specs have been updated to remove most of the stubs
Some endpoints are returning i18n keys instead of translated messages
and with these changes, the site_texts endpoint can help translating
those.
Pagination part is needed for better wildcard support. For example,
looking for 'js.notifications' would set 'has_more' to true, but return
only the first 50 messages with no way of fetching the remaining.
* Support for custom messages and redirects when creating posts
When a post/topic is created Discourse serializes a `NewPostResult`
object. Normally this contains a status like `created_post` or
errors describing why the post could not be created.
There are times when a plugin might want to take the inputted post
and do something in the background. In this case, the plugin
can return a custom `message` and `route_to` attribute in the
`NewPostResult`.
If present, the message will be displayed in an alert, and when "Ok" is
clicked the user will be routed to the new URL.
* Destroy the draft in parallel
* FEATURE: Ability to add components to all themes
This is the first and functional step from that topic https://dev.discourse.org/t/adding-a-theme-component-is-too-much-work/15398/16
The idea here is that when a new component is added, the user can easily assign it to all themes (parents).
To achieve that, I needed to change a site-setting component to accept `setDefaultValues` action and `setDefaultValuesLabel` translated label.
Also, I needed to add `allowAny` option to disable that for theme selector.
I also refactored backend to accept both parent and child ids with one method to avoid duplication (Renamed `add_child_theme!` to more general `add_relative_theme!`)
* FIX: Improvement after code review
* FIX: Improvement after code review2
* FIX: use mapBy and filterBy directly
We already cache failed onebox URL requests client-side, we now want to cache this on the server-side for extra protection. failed onebox previews will be cached for 1 hour, and any more requests for that URL will fail with a 404 status. Forcing a rebake via the Rebake HTML action will delete the failed URL cache (like how the oneboxer preview cache is deleted).
When uploading a file to a theme component, and that file is existing and has already been marked as secure, we now automatically mark the file as secure: false, change the ACL, and log the action as the user (also rebake the posts for the upload)
If a user has more than 60 active sessions, the oldest sessions will be terminated automatically. This protects performance when logging in and when loading the list of recently used devices.
This is a bottom up rewrite of Discourse cache to support faster performance
and a limited surface area.
ActiveSupport::Cache::Store accepts many options we do not use, this partial
implementation only picks the bits out that we do use and want to support.
Additionally params are named which avoids typos such as "expires_at" vs "expires_in"
This also moves a few spots in Discourse to use Discourse.cache over setex
Performance of setex and Discourse.cache.write is similar.
Discourse.cache is a more consistent method to use and offers clean fallback
if you are skipping redis
This is part of a larger change that both optimizes Discoruse.cache and omits
use of setex on $redis in favor of consistently using discourse cache
Bench does reveal that use of Rails.cache and Discourse.cache is 1.25x slower
than redis.setex / get so a re-implementation will follow prior to porting
This amends our API so we provide it with the draft key when saving a post
this means post creator can clean up the draft consistently even if we are
doing fancy stuff like replying to a new topic or new pm or whatever.
There will be some followup work to clean it up so client never calls destroy
on draft during normal operation and the #create/#update endpoints takes care of it
every time
PG 12 changes internals in a subtle way, time jitter is noticed in a few new
spots (which is normal) and default ordering is a bit different which is meant
to be random anyway.
If current value is nil we should use `&.` combined with `dig` to protect diff from erroring
It is happening when for example theme is delete (new value is empty)
* Add timezone to user_options table
* Also migrate existing timezone values from UserCustomField,
which is where the discourse-calendar plugin is storing them
* Allow user to change their core timezone from Profile
* Auto guess & set timezone on login & invite accept & signup
* Serialize user_options.timezone for group members. this is so discourse-group-timezones can access the core user timezone, as it is being removed in discourse-calendar.
* Annotate user_option with timezone
* Validate timezone values
When category is dismissed, `dismiss_new` message is sent to fronted to clean state.
In addition, I noticed that when old dismiss new button is clicked, no message is sent so I decided to kill two birds with one stone.
There was an issue on dev where when uploading secure media, the href of the media was correctly being replaced in the CookedPostProcessor, but the srcset urls were not being replaced correctly. This is because UrlHelper.cook_url was returning the asset host URL for the media for secure media instead of returning early with the proxied secure proxy url.
In non-login-required sites, we prevent secure uploads already used in PMs from being used in public topics.
In login_required sites, secure uploads should be reusable in any topic, PM or not.
- Show old and new email address during the process
- Ensure correct user is logged on when attempting to make email changes
- Support reloading a page during the email reset process without resubmit
of form
- Improve tests
- Fixed issue where redirect back to site was not linking correctly in
subfolder setups
Internal refactor of single action into 4 distinct actions that are simpler
to reason about.
This also removes the step that logs on an account after you confirm an
email change, since it is no longer needed which leaves us with safer
internals.
This left me no choice but to amend translations cause the old route was
removed.
Previously our custom exception handler was unable to handle situations
where an invalid mime type was sent, resulting in a warning log
This ensures we pretend a request is HTML for the purpose of rendering
the error page if an invalid mime type from a scanner is shipped to the app
* Abort CensoredWordsValidator early if censored_words_regexp nil. Sometimes censored_words_regex can end up nil, erroring the validator. This handles the nil condition and also adds a spec for the validator
The secure media functionality relied on `SiteSetting.enable_s3_uploads?` which, as we found in dev, did not take into account global S3 settings via `GlobalSetting.use_s3?`. We now use `SiteSetting.Upload.enable_s3_uploads` instead to be more consistent.
Also, we now validate `enable_s3_uploads` changes, because if `GlobalSetting.use_s3?` is true users should NOT be enabling S3 uploads manually.
If a post starts with a post quote and has no other text content,
then the email excerpt was the name of the person quoted and
nothing else. The intention was to show the contents of the
first paragraph or div after the quote.
With this change, a quote followed by an image will use the
image as the excerpt. A quote followed by a onebox will use the
onebox.
* Fix an issue where if an edit was made to a post with a reason provided, and then another edit was made with no reason, the original edit reason got wiped out
* We now always make a post revision (even with ninja edits) if an edit reason has been provided and it is different from the current edit reason
Co-Authored-By: Sam <sam.saffron@gmail.com>
This PR introduces a new secure media setting. When enabled, it prevent unathorized access to media uploads (files of type image, video and audio). When the `login_required` setting is enabled, then all media uploads will be protected from unauthorized (anonymous) access. When `login_required`is disabled, only media in private messages will be protected from unauthorized access.
A few notes:
- the `prevent_anons_from_downloading_files` setting no longer applies to audio and video uploads
- the `secure_media` setting can only be enabled if S3 uploads are already enabled and configured
- upload records have a new column, `secure`, which is a boolean `true/false` of the upload's secure status
- when creating a public post with an upload that has already been uploaded and is marked as secure, the post creator will raise an error
- when enabling or disabling the setting on a site with existing uploads, the rake task `uploads:ensure_correct_acl` should be used to update all uploads' secure status and their ACL on S3
Previously people were not consistent about mocking which left internals in
a fragile state when running subfolder specs.
This introduces a simple helper `set_subfolder` which you can use to set
the subfolder for the spec. It takes care of proper configuration of subfolder
and teardown.
```
# usage
set_subfolder "/my_amazing_subfolder"
```
You should no longer stub base_uri or global_settings
This is a fix for this bug:
https://meta.discourse.org/t/-/133185?u=blake
where rails would throw a missing template error when trying to confirm
a new email address when you had two factor backup codes enabled.
Apparently this feature broke during this commit:
68d35b14f4
when a partial that contained a lot of javascript was removed most
likely because it didn't comply with our Content Security Policy, so as
a fix I rewrote the previous js functionality without using any
javascript and then added a spec to verify that the correct backup code
form is displayed when that page is loaded.
This version hash is used for the filename, and so browsers/CDNs cache based on it. Previously the version hash was based only on the list of requested icons. This can cause issues in a couple of situations, most commonly when developing themes with custom icons:
- A requested icon does not exist, and then later is added to the theme. The bundle output changes, but the hash did not
- The SVG content of an icon changes, but the name of the icon does not. The bundle output changes, but the hash did not
* When viewing a tag, the search widget will now show a checkbox to scope the search by tag, which will limit search results to that tag on desktop and mobile
This brings the behavior in line with native Discourse SSO. If login is required, and a user tries to visit the forum, they will be directed straight to the external login page without requiring any clicks.
This method had grown into a monster. Its query had bugs
that I couldn't fix, and new features would be hard to add.
Also I don't understand how it all works anymore...
Replace it with common table expressions that can be queried
to generate the results we need, instead of subtracting
results using lots of "NOT IN" clauses.
Fixed are bugs with tag schemas that use combinations of
tag groups, parent tags, and one-tag-per-topic restrictions.
For example: https://meta.discourse.org/t/130991/6
I made a regression here 17366d3bcc (diff-ddeebb36d131f89ca91be9d04c2baefaR10)
When the tag is added, people watching specific tag are notified but also people watching specific category.
Therefore, `notify_post_users` should accept options who should be notified.
So when `category` is added to the topic, users watching topic and users watching category are notified.
When `tag` is added to the topic, users watching topic and users watching tag are notified
Finally, when a new post is created, everybody is notified, topic watchers, category watchers, tag watchers.
These specs are inherently fragile when they are run in a concurrent mode
in CI.
One process will create an upload, another will destroy the upload on disk
at the same time. We need a new safe mechanism here.
