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44f15d4281
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.
721 lines
24 KiB
Ruby
721 lines
24 KiB
Ruby
# frozen_string_literal: true
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class PostAlerter
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USER_BATCH_SIZE = 100
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def self.post_created(post, opts = {})
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PostAlerter.new(opts).after_save_post(post, true)
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post
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end
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def self.post_edited(post, opts = {})
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PostAlerter.new(opts).after_save_post(post, false)
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post
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end
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def initialize(default_opts = {})
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@default_opts = default_opts
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end
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def not_allowed?(user, post)
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user.blank? ||
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user.bot? ||
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user.id == post.user_id
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end
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def all_allowed_users(post)
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@all_allowed_users ||= post.topic.all_allowed_users.reject { |u| not_allowed?(u, post) }
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end
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def allowed_users(post)
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@allowed_users ||= post.topic.allowed_users.reject { |u| not_allowed?(u, post) }
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end
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def allowed_group_users(post)
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@allowed_group_users ||= post.topic.allowed_group_users.reject { |u| not_allowed?(u, post) }
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end
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def directly_targeted_users(post)
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allowed_users(post) - allowed_group_users(post)
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end
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def indirectly_targeted_users(post)
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allowed_group_users(post)
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end
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def only_allowed_users(users, post)
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return users unless post.topic.private_message?
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users.select { |u| all_allowed_users(post).include?(u) }
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end
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def notify_about_reply?(post)
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# small actions can be whispers in this case they will have an action code
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# we never want to notify on this
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post.post_type == Post.types[:regular] ||
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(post.post_type == Post.types[:whisper] && post.action_code.nil?)
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end
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def after_save_post(post, new_record = false)
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notified = [post.user, post.last_editor].uniq
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# mentions (users/groups)
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mentioned_groups, mentioned_users = extract_mentions(post)
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if mentioned_groups || mentioned_users
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mentioned_opts = {}
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editor = post.last_editor
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if post.last_editor_id != post.user_id
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# Mention comes from an edit by someone else, so notification should say who added the mention.
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mentioned_opts = { user_id: editor.id, original_username: editor.username, display_username: editor.username }
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end
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expand_group_mentions(mentioned_groups, post) do |group, users|
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users = only_allowed_users(users, post)
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notified += notify_users(users - notified, :group_mentioned, post, mentioned_opts.merge(group: group))
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end
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if mentioned_users
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mentioned_users = only_allowed_users(mentioned_users, post)
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notified += notify_users(mentioned_users - notified, :mentioned, post, mentioned_opts)
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end
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end
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# replies
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reply_to_user = post.reply_notification_target
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if new_record && reply_to_user && !notified.include?(reply_to_user) && notify_about_reply?(post)
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notified += notify_non_pm_users(reply_to_user, :replied, post)
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end
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# quotes
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quoted_users = extract_quoted_users(post)
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notified += notify_non_pm_users(quoted_users - notified, :quoted, post)
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# linked
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linked_users = extract_linked_users(post)
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notified += notify_non_pm_users(linked_users - notified, :linked, post)
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# private messages
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if new_record
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if post.topic.private_message?
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notify_pm_users(post, reply_to_user, notified)
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elsif notify_about_reply?(post)
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notify_post_users(post, notified, new_record: new_record)
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end
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end
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sync_group_mentions(post, mentioned_groups)
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if new_record && post.post_number == 1
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topic = post.topic
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if topic.present?
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watchers = category_watchers(topic) + tag_watchers(topic) + group_watchers(topic)
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notify_first_post_watchers(post, watchers)
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end
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end
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end
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def group_watchers(topic)
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GroupUser.where(
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group_id: topic.allowed_groups.pluck(:group_id),
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notification_level: GroupUser.notification_levels[:watching_first_post]
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).pluck(:user_id)
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end
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def tag_watchers(topic)
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topic.tag_users
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.where(notification_level: TagUser.notification_levels[:watching_first_post])
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.pluck(:user_id)
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end
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def category_watchers(topic)
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topic.category_users
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.where(notification_level: CategoryUser.notification_levels[:watching_first_post])
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.pluck(:user_id)
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end
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def notify_first_post_watchers(post, user_ids)
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return if user_ids.blank?
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user_ids.uniq!
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warn_if_not_sidekiq
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# Don't notify the OP
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user_ids -= [post.user_id]
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users = User.where(id: user_ids)
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DiscourseEvent.trigger(:before_create_notifications_for_users, users, post)
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each_user_in_batches(users) do |user|
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create_notification(user, Notification.types[:watching_first_post], post)
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end
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end
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def sync_group_mentions(post, mentioned_groups)
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GroupMention.where(post_id: post.id).destroy_all
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return if mentioned_groups.blank?
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mentioned_groups.each do |group|
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GroupMention.create(post_id: post.id, group_id: group.id)
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end
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end
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def unread_posts(user, topic)
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Post.secured(Guardian.new(user))
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.where('post_number > COALESCE((
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SELECT last_read_post_number FROM topic_users tu
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WHERE tu.user_id = ? AND tu.topic_id = ? ),0)',
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user.id, topic.id)
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.where('reply_to_user_id = ? OR exists(
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SELECT 1 from topic_users tu
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WHERE tu.user_id = ? AND
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tu.topic_id = ? AND
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notification_level = ?
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)', user.id, user.id, topic.id, TopicUser.notification_levels[:watching])
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.where(topic_id: topic.id)
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end
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def first_unread_post(user, topic)
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unread_posts(user, topic).order('post_number').first
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end
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def unread_count(user, topic)
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unread_posts(user, topic).count
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end
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def destroy_notifications(user, types, topic)
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return if user.blank?
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return unless Guardian.new(user).can_see?(topic)
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User.transaction do
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user.notifications.where(
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notification_type: types,
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topic_id: topic.id
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).destroy_all
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# Reload so notification counts sync up correctly
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user.reload
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end
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end
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NOTIFIABLE_TYPES = [
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:mentioned,
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:replied,
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:quoted,
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:posted,
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:linked,
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:private_message,
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:group_mentioned,
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:watching_first_post,
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:event_reminder,
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:event_invitation
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].map { |t| Notification.types[t] }
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def group_stats(topic)
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sql = <<~SQL
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SELECT COUNT(*) FROM topics t
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JOIN topic_allowed_groups g ON g.group_id = :group_id AND g.topic_id = t.id
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LEFT JOIN group_archived_messages a ON a.topic_id = t.id AND a.group_id = g.group_id
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WHERE a.id IS NULL AND t.deleted_at is NULL AND t.archetype = 'private_message'
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SQL
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topic.allowed_groups.map do |g|
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{
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group_id: g.id,
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group_name: g.name,
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inbox_count: DB.query_single(sql, group_id: g.id).first.to_i
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}
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end
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end
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def notify_group_summary(user, post)
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@group_stats ||= {}
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stats = (@group_stats[post.topic_id] ||= group_stats(post.topic))
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return unless stats
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group_id = post.topic
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.topic_allowed_groups
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.where(group_id: user.groups.pluck(:id))
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.pluck_first(:group_id)
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stat = stats.find { |s| s[:group_id] == group_id }
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return unless stat && stat[:inbox_count] > 0
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notification_type = Notification.types[:group_message_summary]
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DistributedMutex.synchronize("group_message_notify_#{user.id}") do
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Notification.where(notification_type: notification_type, user_id: user.id).each do |n|
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n.destroy if n.data_hash[:group_id] == stat[:group_id]
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end
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Notification.create(
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notification_type: notification_type,
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user_id: user.id,
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data: {
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group_id: stat[:group_id],
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group_name: stat[:group_name],
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inbox_count: stat[:inbox_count],
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username: user.username_lower
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}.to_json
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)
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end
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# TODO decide if it makes sense to also publish a desktop notification
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end
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def should_notify_edit?(notification, post, opts)
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notification.created_at < 1.day.ago ||
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notification.data_hash["display_username"] != (opts[:display_username].presence || post.user.username)
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end
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def should_notify_like?(user, notification)
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return true if user.user_option.like_notification_frequency == UserOption.like_notification_frequency_type[:always]
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return true if user.user_option.like_notification_frequency == UserOption.like_notification_frequency_type[:first_time_and_daily] && notification.created_at < 1.day.ago
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false
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end
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def should_notify_previous?(user, post, notification, opts)
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case notification.notification_type
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when Notification.types[:edited] then should_notify_edit?(notification, post, opts)
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when Notification.types[:liked] then should_notify_like?(user, notification)
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else false
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end
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end
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COLLAPSED_NOTIFICATION_TYPES ||= [
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Notification.types[:replied],
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Notification.types[:posted],
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Notification.types[:private_message],
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]
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def create_notification(user, type, post, opts = {})
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opts = @default_opts.merge(opts)
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DiscourseEvent.trigger(:before_create_notification, user, type, post, opts)
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return if user.blank? || user.bot? || post.blank?
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return if (topic = post.topic).blank?
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is_liked = type == Notification.types[:liked]
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return if is_liked && user.user_option.like_notification_frequency == UserOption.like_notification_frequency_type[:never]
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# Make sure the user can see the post
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return unless Guardian.new(user).can_see?(post)
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return if user.staged? && topic.category&.mailinglist_mirror?
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notifier_id = opts[:user_id] || post.user_id # xxxxx look at revision history
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# apply muting here
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return if notifier_id && MutedUser.where(user_id: user.id, muted_user_id: notifier_id)
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.joins(:muted_user)
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.where('NOT admin AND NOT moderator')
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.exists?
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# apply ignored here
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return if notifier_id && IgnoredUser.where(user_id: user.id, ignored_user_id: notifier_id)
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.joins(:ignored_user)
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.where('NOT admin AND NOT moderator')
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.exists?
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# skip if muted on the topic
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return if TopicUser.where(
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topic: topic,
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user: user,
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notification_level: TopicUser.notification_levels[:muted]
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).exists?
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# skip if muted on the group
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if group = opts[:group]
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return if GroupUser.where(
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group_id: opts[:group_id],
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user_id: user.id,
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notification_level: TopicUser.notification_levels[:muted]
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).exists?
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end
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existing_notifications = user.notifications
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.order("notifications.id DESC")
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.where(
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topic_id: post.topic_id,
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post_number: post.post_number
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).limit(10)
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# Don't notify the same user about the same type of notification on the same post
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existing_notification_of_same_type = existing_notifications.find { |n| n.notification_type == type }
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if existing_notification_of_same_type && !should_notify_previous?(user, post, existing_notification_of_same_type, opts)
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return
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end
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# linked, quoted, mentioned may be suppressed if you already have a reply notification
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if type == Notification.types[:quoted] || type == Notification.types[:linked] || type == Notification.types[:mentioned]
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return if existing_notifications.find { |n| n.notification_type == Notification.types[:replied] }
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end
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notification_data = {}
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if is_liked &&
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existing_notification_of_same_type &&
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existing_notification_of_same_type.created_at > 1.day.ago &&
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(
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user.user_option.like_notification_frequency ==
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UserOption.like_notification_frequency_type[:always]
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)
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data = existing_notification_of_same_type.data_hash
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notification_data["username2"] = data["display_username"]
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notification_data["count"] = (data["count"] || 1).to_i + 1
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# don't use destroy so we don't trigger a notification count refresh
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Notification.where(id: existing_notification_of_same_type.id).destroy_all
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end
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collapsed = false
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if COLLAPSED_NOTIFICATION_TYPES.include?(type)
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destroy_notifications(user, COLLAPSED_NOTIFICATION_TYPES, topic)
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collapsed = true
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end
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original_post = post
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original_username = opts[:display_username].presence || post.username
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if collapsed
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post = first_unread_post(user, topic) || post
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count = unread_count(user, topic)
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if count > 1
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I18n.with_locale(user.effective_locale) do
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opts[:display_username] = I18n.t('embed.replies', count: count)
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end
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end
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end
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UserActionManager.notification_created(original_post, user, type, opts[:acting_user_id])
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topic_title = topic.title
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# when sending a private message email, keep the original title
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if topic.private_message? && modifications = post.revisions.map(&:modifications)
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if first_title_modification = modifications.find { |m| m.has_key?("title") }
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topic_title = first_title_modification["title"][0]
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end
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end
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notification_data.merge!(topic_title: topic_title,
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original_post_id: original_post.id,
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original_post_type: original_post.post_type,
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original_username: original_username,
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revision_number: opts[:revision_number],
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display_username: opts[:display_username] || post.user.username)
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if group = opts[:group]
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notification_data[:group_id] = group.id
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notification_data[:group_name] = group.name
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end
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if opts[:skip_send_email_to]&.include?(user.email)
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skip_send_email = true
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elsif original_post.via_email && (incoming_email = original_post.incoming_email)
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skip_send_email =
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incoming_email.to_addresses_split.include?(user.email) ||
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incoming_email.cc_addresses_split.include?(user.email)
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else
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skip_send_email = opts[:skip_send_email]
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end
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# Create the notification
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created = user.notifications.create!(
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notification_type: type,
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topic_id: post.topic_id,
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post_number: post.post_number,
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post_action_id: opts[:post_action_id],
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data: notification_data.to_json,
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skip_send_email: skip_send_email
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)
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if created.id && existing_notifications.empty? && NOTIFIABLE_TYPES.include?(type) && !user.suspended?
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create_notification_alert(user: user, post: original_post, notification_type: type, username: original_username)
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end
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created.id ? created : nil
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end
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def create_notification_alert(user:, post:, notification_type:, excerpt: nil, username: nil)
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if post_url = post.url
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payload = {
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notification_type: notification_type,
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post_number: post.post_number,
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topic_title: post.topic.title,
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topic_id: post.topic.id,
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excerpt: excerpt || post.excerpt(400, text_entities: true, strip_links: true, remap_emoji: true),
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username: username || post.username,
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post_url: post_url
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}
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DiscourseEvent.trigger(:pre_notification_alert, user, payload)
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MessageBus.publish("/notification-alert/#{user.id}", payload, user_ids: [user.id])
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push_notification(user, payload)
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DiscourseEvent.trigger(:post_notification_alert, user, payload)
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end
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end
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def push_notification(user, payload)
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return if user.do_not_disturb?
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if user.push_subscriptions.exists?
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Jobs.enqueue(:send_push_notification, user_id: user.id, payload: payload)
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end
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if SiteSetting.allow_user_api_key_scopes.split("|").include?("push") && SiteSetting.allowed_user_api_push_urls.present?
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clients = user.user_api_keys
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.joins(:scopes)
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.where("user_api_key_scopes.name IN ('push', 'notifications')")
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.where("push_url IS NOT NULL AND push_url <> ''")
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.where("position(push_url IN ?) > 0", SiteSetting.allowed_user_api_push_urls)
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.where("revoked_at IS NULL")
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.order(client_id: :asc)
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.pluck(:client_id, :push_url)
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if clients.length > 0
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Jobs.enqueue(:push_notification, clients: clients, payload: payload, user_id: user.id)
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end
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end
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end
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def expand_group_mentions(groups, post)
|
|
return unless post.user && groups
|
|
|
|
Group.mentionable(post.user, include_public: false).where(id: groups.map(&:id)).each do |group|
|
|
next if group.user_count >= SiteSetting.max_users_notified_per_group_mention
|
|
yield group, group.users
|
|
end
|
|
|
|
end
|
|
|
|
# TODO: Move to post-analyzer?
|
|
def extract_mentions(post)
|
|
mentions = post.raw_mentions
|
|
return if mentions.blank?
|
|
|
|
groups = Group.where('LOWER(name) IN (?)', mentions)
|
|
mentions -= groups.map(&:name).map(&:downcase)
|
|
groups = nil if groups.empty?
|
|
|
|
if mentions.present?
|
|
users = User.where(username_lower: mentions).where.not(id: post.user_id)
|
|
users = nil if users.empty?
|
|
end
|
|
|
|
[groups, users]
|
|
end
|
|
|
|
# TODO: Move to post-analyzer?
|
|
# Returns a list of users who were quoted in the post
|
|
def extract_quoted_users(post)
|
|
post.raw.scan(/\[quote=\"([^,]+),.+\"\]/).uniq.map do |m|
|
|
User.find_by("username_lower = :username AND id != :id", username: m.first.strip.downcase, id: post.user_id)
|
|
end.compact
|
|
end
|
|
|
|
def extract_linked_users(post)
|
|
users = post.topic_links.where(reflection: false).map do |link|
|
|
linked_post = link.link_post
|
|
if !linked_post && topic = link.link_topic
|
|
linked_post = topic.posts.find_by(post_number: 1)
|
|
end
|
|
(linked_post && post.user_id != linked_post.user_id && linked_post.user) || nil
|
|
end.compact
|
|
|
|
DiscourseEvent.trigger(:after_extract_linked_users, users, post)
|
|
|
|
users
|
|
end
|
|
|
|
# Notify a bunch of users
|
|
def notify_non_pm_users(users, type, post, opts = {})
|
|
return [] if post.topic&.private_message?
|
|
|
|
notify_users(users, type, post, opts)
|
|
end
|
|
|
|
def notify_users(users, type, post, opts = {})
|
|
users = [users] unless users.is_a?(Array)
|
|
users.reject!(&:staged?) if post.topic&.private_message?
|
|
|
|
warn_if_not_sidekiq
|
|
|
|
DiscourseEvent.trigger(:before_create_notifications_for_users, users, post)
|
|
users.each do |u|
|
|
create_notification(u, Notification.types[type], post, opts)
|
|
end
|
|
|
|
users
|
|
end
|
|
|
|
def group_notifying_via_smtp(post)
|
|
return nil if !SiteSetting.enable_smtp || post.post_type != Post.types[:regular]
|
|
|
|
post.topic.allowed_groups
|
|
.where.not(smtp_server: nil)
|
|
.where.not(smtp_port: nil)
|
|
.where.not(email_username: nil)
|
|
.where.not(email_password: nil)
|
|
.first
|
|
end
|
|
|
|
def notify_pm_users(post, reply_to_user, notified)
|
|
return unless post.topic
|
|
|
|
warn_if_not_sidekiq
|
|
|
|
# Users who interacted with the post by _directly_ emailing the group
|
|
# via the group's email_username. This excludes people who replied via
|
|
# email to a user_private_message notification email. These people should
|
|
# not be emailed again by the user_private_message notifications below.
|
|
emails_to_skip_send = notify_group_direct_emailers(post)
|
|
|
|
# Users that aren't part of any mentioned groups and who did not email
|
|
# the group directly.
|
|
users = directly_targeted_users(post).reject { |u| notified.include?(u) }
|
|
DiscourseEvent.trigger(:before_create_notifications_for_users, users, post)
|
|
users.each do |user|
|
|
notification_level = TopicUser.get(post.topic, user)&.notification_level
|
|
if reply_to_user == user || notification_level == TopicUser.notification_levels[:watching] || user.staged?
|
|
create_notification(user, Notification.types[:private_message], post, skip_send_email_to: emails_to_skip_send)
|
|
end
|
|
end
|
|
|
|
# Users that are part of all mentioned groups
|
|
users = indirectly_targeted_users(post).reject { |u| notified.include?(u) }
|
|
DiscourseEvent.trigger(:before_create_notifications_for_users, users, post)
|
|
users.each do |user|
|
|
case TopicUser.get(post.topic, user)&.notification_level
|
|
when TopicUser.notification_levels[:watching]
|
|
# only create a notification when watching the group
|
|
create_notification(user, Notification.types[:private_message], post, skip_send_email_to: emails_to_skip_send)
|
|
when TopicUser.notification_levels[:tracking]
|
|
notify_group_summary(user, post)
|
|
end
|
|
end
|
|
end
|
|
|
|
def notify_group_direct_emailers(post)
|
|
email_addresses = []
|
|
emails_to_skip_send = []
|
|
group = group_notifying_via_smtp(post)
|
|
|
|
return emails_to_skip_send if group.blank?
|
|
|
|
# If the post already has an incoming email, it has been set in the
|
|
# Email::Receiver or via the GroupSmtpEmail job, and thus it was created
|
|
# via the IMAP/SMTP flow, so there is no need to notify those involved
|
|
# in the email chain again.
|
|
if post.incoming_email.blank?
|
|
email_addresses = post.topic.incoming_email_addresses(group: group)
|
|
if email_addresses.any?
|
|
Jobs.enqueue(:group_smtp_email, group_id: group.id, post_id: post.id, email: email_addresses)
|
|
end
|
|
end
|
|
|
|
# Add the group's email into the array, because it is used for
|
|
# skip_send_email_to in the case of user private message notifications
|
|
# (we do not want the group to be sent any emails from here because it
|
|
# will make another email for IMAP to pick up in the group's mailbox)
|
|
emails_to_skip_send = email_addresses.dup if email_addresses.any?
|
|
emails_to_skip_send << group.email_username
|
|
emails_to_skip_send
|
|
end
|
|
|
|
def notify_post_users(post, notified, include_topic_watchers: true, include_category_watchers: true, include_tag_watchers: true, new_record: false)
|
|
return unless post.topic
|
|
|
|
warn_if_not_sidekiq
|
|
|
|
condition = +<<~SQL
|
|
id IN (
|
|
SELECT id FROM users WHERE false
|
|
/*topic*/
|
|
/*category*/
|
|
/*tags*/
|
|
)
|
|
SQL
|
|
if include_topic_watchers
|
|
condition.sub! "/*topic*/", <<~SQL
|
|
UNION
|
|
SELECT user_id
|
|
FROM topic_users
|
|
WHERE notification_level = :watching
|
|
AND topic_id = :topic_id
|
|
SQL
|
|
end
|
|
|
|
if include_category_watchers
|
|
condition.sub! "/*category*/", <<~SQL
|
|
UNION
|
|
|
|
SELECT cu.user_id
|
|
FROM category_users cu
|
|
LEFT JOIN topic_users tu ON tu.user_id = cu.user_id
|
|
AND tu.topic_id = :topic_id
|
|
WHERE cu.notification_level = :watching
|
|
AND cu.category_id = :category_id
|
|
AND (tu.user_id IS NULL OR tu.notification_level = :watching)
|
|
SQL
|
|
end
|
|
|
|
tag_ids = post.topic.topic_tags.pluck('topic_tags.tag_id')
|
|
|
|
if include_tag_watchers && tag_ids.present?
|
|
condition.sub! "/*tags*/", <<~SQL
|
|
UNION
|
|
|
|
SELECT tag_users.user_id
|
|
FROM tag_users
|
|
LEFT JOIN topic_users tu ON tu.user_id = tag_users.user_id
|
|
AND tu.topic_id = :topic_id
|
|
WHERE tag_users.notification_level = :watching
|
|
AND tag_users.tag_id IN (:tag_ids)
|
|
AND (tu.user_id IS NULL OR tu.notification_level = :watching)
|
|
SQL
|
|
end
|
|
|
|
notify = User.where(condition,
|
|
watching: TopicUser.notification_levels[:watching],
|
|
topic_id: post.topic_id,
|
|
category_id: post.topic.category_id,
|
|
tag_ids: tag_ids
|
|
)
|
|
|
|
if post.topic.private_message?
|
|
notify = notify.where(staged: false).staff
|
|
end
|
|
|
|
exclude_user_ids = notified.map(&:id)
|
|
notify = notify.where("id NOT IN (?)", exclude_user_ids) if exclude_user_ids.present?
|
|
|
|
DiscourseEvent.trigger(:before_create_notifications_for_users, notify, post)
|
|
|
|
already_seen_user_ids = Set.new TopicUser.where(topic_id: post.topic.id).where("highest_seen_post_number >= ?", post.post_number).pluck(:user_id)
|
|
|
|
each_user_in_batches(notify) do |user|
|
|
notification_type = !new_record && already_seen_user_ids.include?(user.id) ? Notification.types[:edited] : Notification.types[:posted]
|
|
opts = {}
|
|
opts[:display_username] = post.last_editor.username if notification_type == Notification.types[:edited]
|
|
create_notification(user, notification_type, post, opts)
|
|
end
|
|
end
|
|
|
|
def warn_if_not_sidekiq
|
|
Rails.logger.warn("PostAlerter.#{caller_locations(1, 1)[0].label} was called outside of sidekiq") unless Sidekiq.server?
|
|
end
|
|
|
|
private
|
|
|
|
def each_user_in_batches(users)
|
|
# This is race-condition-safe, unlike #find_in_batches
|
|
users.pluck(:id).each_slice(USER_BATCH_SIZE) do |user_ids_batch|
|
|
User.where(id: user_ids_batch).each { |user| yield(user) }
|
|
end
|
|
end
|
|
end
|