Notifying about a tag change sometimes resulted in loading a large
number of users in memory just to perform an exclusion. This commit
prefers to do inclusion (i.e. instead of exclude users X, do include
users in groups Y) and does it in SQL to avoid fetching unnecessary
data that is later discarded.
When a group only has SMTP enabled and not IMAP, we do not
want to enqueue the :group_smtp_email job because using the group's
SMTP credentials for sending user_private_message emails is
handled by the UserNotifications class.
We do not want the :group_smtp_email job to be enqueued because
that uses a reply key instead of the group.email_username
for the reply-to address which is not what we want for SMTP
only, and also creates an IncomingEmail record to prevent IMAP
double syncing which we do not need either.
There is an open question about what happens when IMAP is
enabled after SMTP has been enabled for a while, and also questions
around whether we could do away with :group_smtp_email altogether
and handle everything via EmailLog and UserNotifications, adding
additional columns to the former and modifying the Imap::Sync
class to take this into account...a lot more further testing
for IMAP needs to be done to answer those questions.
For now, this fix should be sufficient to get the correct
reply-to address for user_private_response messages sent in
response to emails sent directly to the group's
email_username SMTP address.
Co-authored-by: Alan Guo Xiang Tan <gxtan1990@gmail.com>
This PR changes the `UserNotification` class to send outbound `user_private_message` using the group's SMTP settings, but only if:
* The first allowed_group on the topic has SMTP configured and enabled
* SiteSetting.enable_smtp is true
* The group does not have IMAP enabled, if this is enabled the `GroupSMTPMailer` handles things
The email is sent using the group's `email_username` as both the `from` and `reply-to` address, so when the user replies from their email it will go through the group's SMTP inbox, which needs to have email forwarding set up to send the message on to a location (such as a hosted site email address like meta@discoursemail.com) where it can be POSTed into discourse's handle_mail route.
Also includes a fix to `EmailReceiver#group_incoming_emails_regex` to include the `group.email_username` so the group does not get a staged user created and invited to the topic (which was a problem for IMAP), as well as updating `Group.find_by_email` to find using the `email_username` as well for inbound emails with that as the TO address.
#### Note
This is safe to merge without impacting anyone seriously. If people had SMTP enabled for a group they would have IMAP enabled too currently, and that is a very small amount of users because IMAP is an alpha product, and also because the UserNotification change has a guard to make sure it is not used if IMAP is enabled for the group. The existing IMAP tests work, and I tested this functionality by manually POSTing replies to the SMTP address into my local discourse.
There will probably be more work needed on this, but it needs to be tested further in a real hosted environment to continue.
This overhauls the user interface for the group email settings management, aiming to make it a lot easier to test the settings entered and confirm they are correct before proceeding. We do this by forcing the user to test the settings before they can be saved to the database. It also includes some quality of life improvements around setting up IMAP and SMTP for our first supported provider, GMail. This PR does not remove the old group email config, that will come in a subsequent PR. This is related to https://meta.discourse.org/t/imap-support-for-group-inboxes/160588 so read that if you would like more backstory.
### UI
Both site settings of `enable_imap` and `enable_smtp` must be true to test this. You must enable SMTP first to enable IMAP.
You can prefill the SMTP settings with GMail configuration. To proceed with saving these settings you must test them, which is handled by the EmailSettingsValidator.
If there is an issue with the configuration or credentials a meaningful error message should be shown.
IMAP settings must also be validated when IMAP is enabled, before saving.
When saving IMAP, we fetch the mailboxes for that account and populate them. This mailbox must be selected and saved for IMAP to work (the feature acts as though it is disabled until the mailbox is selected and saved):
### Database & Backend
This adds several columns to the Groups table. The purpose of this change is to make it much more explicit that SMTP/IMAP is enabled for a group, rather than relying on settings not being null. Also included is an UPDATE query to backfill these columns. These columns are automatically filled when updating the group.
For GMail, we now filter the mailboxes returned. This is so users cannot use a mailbox like Sent or Trash for syncing, which would generally be disastrous.
There is a new group endpoint for testing email settings. This may be useful in the future for other places in our UI, at which point it can be extracted to a more generic endpoint or module to be included.
* FIX: Link notification to first unread post
If a topic with a few posts was posted in a watched category or with a
watched tag, the created notification would always point to the last
post, instead of pointing to the first one.
The root cause is that the query that fetched the first unread post
uses 'TopicUser' records and those are not created by default for
user watching a category or tag. In this case, it should use the
'CategoryUser' or 'TagUser' records.
* DEV: Use named bind variables
There was an issue that occurred with this order of operations:
* An IMAP topic was created by emailing a group
* A second user was invited to the topic (not the OP and not the group)
* A user with access to the group replies to the topic
* The second user receives a user_private_message notification email because of their involvement in the topic
* The second user replies to the email via email
This new reply would then go and notify the other group PM users, except for those who emailed the group topic directly, which is handled via the group SMTP mailer. However because the new post already has an incoming email because it is parsed via the Email::Receiver via POP3 the group SMTP section of the post alerter is skipped, and the group's email address is not ignored for the user_private_message notification.
This PR fixes it so the group is not ever sent an email via the PM notification. This is important because any new emails in the group's IMAP inbox will be picked up by the Imap::Sync code and created as a new topic which is not at all desirable.
Also in this PR I split up the specs a bit more for group SMTP in the post alerter to make them easier to read and they each only test one thing.
Fixes bug introduced by bd25627198
What happens is we send notifications to everyone involved in the group inbox topic about new posts, however we pass the param `skip_send_email_to: email_addresses`. In the above commit I removed the group email address from this `email_addresses` array. This breaks the IMAP inbox because we email the group with the reply, and the IMAP sync tool finds this email and opens a new unrelated topic with it.
This PR fixes a race condition with the IMAP notification code. In the `Email::Receiver` we call the `NewPostManager` to create the post and enqueue jobs and sends alerts via `PostAlerter`. However, if the post alerter reaches the `notify_pm_users` and the `group_notifying_via_smtp` method _before_ the incoming email is updated with the post and topic, we unnecessarily send a notification to the person who just posted. The result of this is that the IMAP syncer re-imports the email sent to the user about their own post, which looks like this in the group inbox:
To fix this, we skip the jobs enqueued by `NewPostManager` and only enqueue them with `PostJobsEnqueuer` manually _after_ the incoming email record has been updated with the post and topic.
Other improvements:
* Moved code to calculate email addresses from `IncomingEmail` records into the topic, with a group passed in, for easier testing and debugging. It is not the responsibility of the post alerter to figure this stuff out.
* Add shortcut methods on `IncomingEmail` to split or provide an empty array for to and cc addresses to avoid repetition.
* FEATURE: don't notify about changed tags for a private message
Only staff members observing specific tag should receive a notification
* FIX: remove other category which is not used
* FIX: improved specs to ensure that revise was succesful
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.
* 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
Previously, `notify_first_post_users` was loading all users into memory simultaneously, which can cause Sidekiq to run out of memory for large sites. `notify_post_users` was loading every user one-by-one in a loop.
This commit makes both these functions load users in batches of 100. This should make the memory usage of `notify_first_post_users` lower, and reduce the number of queries required in `notify_post_users`.
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
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.
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.
Doing .pluck(:column).first is a very common pattern in Discourse and in
most cases, a limit cause isn't being added. Instead of adding a limit
clause to all these callsites, this commit adds two new methods to
ActiveRecord::Relation:
pluck_first, equivalent to limit(1).pluck(*columns).first
and pluck_first! which, like other finder methods, raises an exception
when no record is found
Zeitwerk simplifies working with dependencies in dev and makes it easier reloading class chains.
We no longer need to use Rails "require_dependency" anywhere and instead can just use standard
Ruby patterns to require files.
This is a far reaching change and we expect some followups here.
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.
Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
Includes support for flags, reviewable users and queued posts, with REST API
backwards compatibility.
Co-Authored-By: romanrizzi <romanalejandro@gmail.com>
Co-Authored-By: jjaffeux <j.jaffeux@gmail.com>
Previously the push notification code path was not tested for notification
collapsing. This happens if you get multiple replies to a topic you are
watching.
Dan Ungureanu
Martin Brennan
Daniel Waterworth
Krzysztof Kotlarek
Mark VanLandingham
David Taylor
Penar Musaraj
Joffrey JAFFEUX
Bianca Nenciu
Sam Saffron
Arpit Jalan
Vinoth Kannan
Roman Rizzi
Vinoth Kannan
Robin Ward
Tarek Khalil
Guo Xiang Tan
Angus McLeod
Régis Hanol