509 lines
16 KiB
Ruby
509 lines
16 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
#
|
|
# How a post is deleted is affected by who is performing the action.
|
|
# this class contains the logic to delete it.
|
|
#
|
|
class PostDestroyer
|
|
def self.destroy_old_hidden_posts
|
|
Post
|
|
.where(deleted_at: nil, hidden: true)
|
|
.where("hidden_at < ?", 30.days.ago)
|
|
.find_each { |post| PostDestroyer.new(Discourse.system_user, post).destroy }
|
|
end
|
|
|
|
def self.destroy_stubs
|
|
context = I18n.t("remove_posts_deleted_by_author")
|
|
|
|
# exclude deleted topics and posts that are actively flagged
|
|
Post
|
|
.where(deleted_at: nil, user_deleted: true)
|
|
.where(
|
|
"NOT EXISTS (
|
|
SELECT 1 FROM topics t
|
|
WHERE t.deleted_at IS NOT NULL AND
|
|
t.id = posts.topic_id
|
|
)",
|
|
)
|
|
.where("updated_at < ?", SiteSetting.delete_removed_posts_after.hours.ago)
|
|
.where(
|
|
"NOT EXISTS (
|
|
SELECT 1
|
|
FROM post_actions pa
|
|
WHERE pa.post_id = posts.id
|
|
AND pa.deleted_at IS NULL
|
|
AND pa.deferred_at IS NULL
|
|
AND pa.post_action_type_id IN (?)
|
|
)",
|
|
PostActionType.notify_flag_type_ids,
|
|
)
|
|
.find_each { |post| PostDestroyer.new(Discourse.system_user, post, context: context).destroy }
|
|
end
|
|
|
|
def self.delete_with_replies(performed_by, post, reviewable = nil, defer_reply_flags: true)
|
|
reply_ids = post.reply_ids(Guardian.new(performed_by), only_replies_to_single_post: false)
|
|
replies = Post.where(id: reply_ids.map { |r| r[:id] })
|
|
PostDestroyer.new(performed_by, post, reviewable: reviewable).destroy
|
|
|
|
options = { defer_flags: defer_reply_flags }
|
|
if SiteSetting.notify_users_after_responses_deleted_on_flagged_post
|
|
options.merge!({ reviewable: reviewable, notify_responders: true, parent_post: post })
|
|
end
|
|
replies.each { |reply| PostDestroyer.new(performed_by, reply, options).destroy }
|
|
end
|
|
|
|
def initialize(user, post, opts = {})
|
|
@user = user
|
|
@post = post
|
|
@topic = post.topic || Topic.with_deleted.find_by(id: @post.topic_id)
|
|
@opts = opts
|
|
end
|
|
|
|
def destroy
|
|
payload = WebHook.generate_payload(:post, @post) if WebHook.active_web_hooks(
|
|
:post_destroyed,
|
|
).exists?
|
|
is_first_post = @post.is_first_post? && @topic
|
|
has_topic_web_hooks = is_first_post && WebHook.active_web_hooks(:topic_destroyed).exists?
|
|
|
|
if has_topic_web_hooks
|
|
topic_view = TopicView.new(@topic.id, Discourse.system_user, skip_staff_action: true)
|
|
topic_payload = WebHook.generate_payload(:topic, topic_view, WebHookTopicViewSerializer)
|
|
end
|
|
|
|
delete_removed_posts_after =
|
|
@opts[:delete_removed_posts_after] || SiteSetting.delete_removed_posts_after
|
|
|
|
if delete_removed_posts_after < 1 || post_is_reviewable? ||
|
|
Guardian.new(@user).can_moderate_topic?(@topic) || permanent?
|
|
perform_delete
|
|
elsif @user.id == @post.user_id
|
|
mark_for_deletion(delete_removed_posts_after)
|
|
end
|
|
|
|
UserActionManager.post_destroyed(@post)
|
|
|
|
DiscourseEvent.trigger(:post_destroyed, @post, @opts, @user)
|
|
WebHook.enqueue_post_hooks(:post_destroyed, @post, payload)
|
|
Jobs.enqueue(:sync_topic_user_bookmarked, topic_id: @topic.id) if @topic
|
|
|
|
if is_first_post
|
|
UserProfile.remove_featured_topic_from_all_profiles(@topic)
|
|
UserActionManager.topic_destroyed(@topic)
|
|
DiscourseEvent.trigger(:topic_destroyed, @topic, @user)
|
|
WebHook.enqueue_topic_hooks(:topic_destroyed, @topic, topic_payload) if has_topic_web_hooks
|
|
if SiteSetting.tos_topic_id == @topic.id || SiteSetting.privacy_topic_id == @topic.id
|
|
Discourse.clear_urls!
|
|
end
|
|
end
|
|
end
|
|
|
|
def recover
|
|
if (post_is_reviewable? || Guardian.new(@user).can_moderate_topic?(@post.topic)) &&
|
|
@post.deleted_at
|
|
staff_recovered
|
|
elsif @user.staff? || @user.id == @post.user_id
|
|
user_recovered
|
|
end
|
|
|
|
@topic.update_column(:user_id, Discourse::SYSTEM_USER_ID) if !@topic.user_id
|
|
@topic.recover!(@user) if @post.is_first_post?
|
|
@topic.update_statistics
|
|
Topic.publish_stats_to_clients!(@topic.id, :recovered)
|
|
|
|
UserActionManager.post_created(@post)
|
|
DiscourseEvent.trigger(:post_recovered, @post, @opts, @user)
|
|
Jobs.enqueue(:sync_topic_user_bookmarked, topic_id: @topic.id) if @topic
|
|
Jobs.enqueue(:notify_mailing_list_subscribers, post_id: @post.id)
|
|
|
|
if @post.is_first_post?
|
|
UserActionManager.topic_created(@topic)
|
|
DiscourseEvent.trigger(:topic_recovered, @topic, @user)
|
|
if @user.id != @post.user_id
|
|
StaffActionLogger.new(@user).log_topic_delete_recover(
|
|
@topic,
|
|
"recover_topic",
|
|
@opts.slice(:context),
|
|
)
|
|
end
|
|
update_imap_sync(@post, false)
|
|
if SiteSetting.tos_topic_id == @topic.id || SiteSetting.privacy_topic_id == @topic.id
|
|
Discourse.clear_urls!
|
|
end
|
|
end
|
|
end
|
|
|
|
def staff_recovered
|
|
new_post_attrs = { user_deleted: false }
|
|
new_post_attrs[:user_id] = Discourse::SYSTEM_USER_ID if !@post.user_id
|
|
@post.update_columns(new_post_attrs)
|
|
@post.recover!
|
|
|
|
mark_topic_changed
|
|
|
|
if @post.topic && !@post.topic.private_message?
|
|
if author = @post.user
|
|
if @post.is_first_post?
|
|
author.user_stat.topic_count += 1
|
|
else
|
|
author.user_stat.post_count += 1
|
|
end
|
|
author.user_stat.save!
|
|
end
|
|
|
|
if @post.is_first_post?
|
|
# Update stats of all people who replied
|
|
update_post_counts(:increment)
|
|
end
|
|
end
|
|
|
|
# skip also publishing topic stats because they weren't updated yet
|
|
@post.publish_change_to_clients! :recovered, { skip_topic_stats: true }
|
|
TopicTrackingState.publish_recover(@post.topic) if @post.topic && @post.is_first_post?
|
|
end
|
|
|
|
# When a post is properly deleted. Well, it's still soft deleted, but it will no longer
|
|
# show up in the topic
|
|
# Permanent option allows to hard delete.
|
|
def perform_delete
|
|
# All posts in the topic must be force deleted if the first is force
|
|
# deleted (except @post which is destroyed by current instance).
|
|
if @topic && @post.is_first_post? && permanent?
|
|
@topic.ordered_posts.with_deleted.reverse_order.find_each do |post|
|
|
PostDestroyer.new(@user, post, @opts).destroy if post.id != @post.id
|
|
end
|
|
end
|
|
|
|
Post.transaction do
|
|
permanent? ? @post.destroy! : @post.trash!(@user)
|
|
if @post.topic
|
|
make_previous_post_the_last_one
|
|
mark_topic_changed
|
|
clear_user_posted_flag
|
|
end
|
|
|
|
Topic.reset_highest(@post.topic_id)
|
|
trash_public_post_actions
|
|
trash_revisions
|
|
trash_user_actions
|
|
remove_associated_replies
|
|
remove_associated_notifications
|
|
|
|
if @user.id != @post.user_id && !@opts[:skip_staff_log]
|
|
if @post.topic && @post.is_first_post?
|
|
StaffActionLogger.new(@user).log_topic_delete_recover(
|
|
@post.topic,
|
|
"delete_topic",
|
|
@opts.slice(:context),
|
|
)
|
|
else
|
|
StaffActionLogger.new(@user).log_post_deletion(@post, @opts.slice(:context))
|
|
end
|
|
end
|
|
|
|
if @topic && @post.is_first_post?
|
|
permanent? ? @topic.destroy! : @topic.trash!(@user)
|
|
PublishedPage.unpublish!(@user, @topic) if @topic.published_page
|
|
end
|
|
|
|
TopicLink.where(link_post_id: @post.id).destroy_all
|
|
update_associated_category_latest_topic
|
|
update_user_counts if !permanent?
|
|
TopicUser.update_post_action_cache(post_id: @post.id)
|
|
|
|
DB.after_commit do
|
|
if @opts[:reviewable]
|
|
notify_deletion(
|
|
@opts[:reviewable],
|
|
{ notify_responders: @opts[:notify_responders], parent_post: @opts[:parent_post] },
|
|
)
|
|
if @post.reviewable_flag &&
|
|
SiteSetting.notify_users_after_responses_deleted_on_flagged_post
|
|
ignore(@post.reviewable_flag)
|
|
end
|
|
elsif reviewable = @post.reviewable_flag
|
|
@opts[:defer_flags] ? ignore(reviewable) : agree(reviewable)
|
|
end
|
|
end
|
|
end
|
|
|
|
update_imap_sync(@post, true) if @post.topic&.deleted_at
|
|
feature_users_in_the_topic if @post.topic
|
|
@post.publish_change_to_clients!(permanent? ? :destroyed : :deleted) if @post.topic
|
|
if @post.topic && @post.post_number == 1
|
|
TopicTrackingState.send(permanent? ? :publish_destroy : :publish_delete, @post.topic)
|
|
end
|
|
end
|
|
|
|
def permanent?
|
|
@opts[:force_destroy] ||
|
|
(@opts[:permanent] && @user == @post.user && @post.topic.private_message?)
|
|
end
|
|
|
|
# When a user 'deletes' their own post. We just change the text.
|
|
def mark_for_deletion(delete_removed_posts_after = SiteSetting.delete_removed_posts_after)
|
|
I18n.with_locale(SiteSetting.default_locale) do
|
|
# don't call revise from within transaction, high risk of deadlock
|
|
key =
|
|
(
|
|
if @post.is_first_post?
|
|
"js.topic.deleted_by_author_simple"
|
|
else
|
|
"js.post.deleted_by_author_simple"
|
|
end
|
|
)
|
|
@post.revise(
|
|
@user,
|
|
{ raw: I18n.t(key) },
|
|
force_new_version: true,
|
|
deleting_post: true,
|
|
skip_validations: true,
|
|
)
|
|
|
|
Post.transaction do
|
|
@post.update_column(:user_deleted, true)
|
|
@post.topic_links.each(&:destroy)
|
|
@post.topic.update_column(:closed, true) if @post.is_first_post?
|
|
end
|
|
end
|
|
end
|
|
|
|
def user_recovered
|
|
return unless @post.user_deleted?
|
|
|
|
Post.transaction do
|
|
@post.update_column(:user_deleted, false)
|
|
@post.skip_unique_check = true
|
|
@post.topic.update_column(:closed, false) if @post.is_first_post?
|
|
end
|
|
|
|
# has internal transactions, if we nest then there are some very high risk deadlocks
|
|
last_revision = @post.revisions.last
|
|
if last_revision.present? && last_revision.modifications["raw"].present?
|
|
@post.revise(@user, { raw: last_revision.modifications["raw"][0] }, force_new_version: true)
|
|
end
|
|
end
|
|
|
|
private
|
|
|
|
def post_is_reviewable?
|
|
return true if @user.staff?
|
|
|
|
Guardian.new(@user).can_review_topic?(@topic) && Reviewable.exists?(target: @post)
|
|
end
|
|
|
|
# we need topics to change if ever a post in them is deleted or created
|
|
# this ensures users relying on this information can keep unread tracking
|
|
# working as desired
|
|
def mark_topic_changed
|
|
# make this as fast as possible, can bypass everything
|
|
DB.exec(<<~SQL, updated_at: Time.now, id: @post.topic_id)
|
|
UPDATE topics
|
|
SET updated_at = :updated_at
|
|
WHERE id = :id
|
|
SQL
|
|
end
|
|
|
|
def make_previous_post_the_last_one
|
|
last_post =
|
|
Post
|
|
.select(:created_at, :user_id, :post_number)
|
|
.where("topic_id = ? and id <> ?", @post.topic_id, @post.id)
|
|
.where.not(user_id: nil)
|
|
.where.not(post_type: Post.types[:whisper])
|
|
.order("created_at desc")
|
|
.first
|
|
|
|
if last_post.present?
|
|
topic = @post.topic
|
|
topic.last_posted_at = last_post.created_at
|
|
topic.last_post_user_id = last_post.user_id
|
|
topic.highest_post_number = last_post.post_number
|
|
|
|
# we go via save here cause we need to run hooks
|
|
topic.save!(validate: false)
|
|
end
|
|
end
|
|
|
|
def clear_user_posted_flag
|
|
unless Post.exists?(
|
|
["topic_id = ? and user_id = ? and id <> ?", @post.topic_id, @post.user_id, @post.id],
|
|
)
|
|
TopicUser.where(topic_id: @post.topic_id, user_id: @post.user_id).update_all "posted = false"
|
|
end
|
|
end
|
|
|
|
def feature_users_in_the_topic
|
|
Jobs.enqueue(:feature_topic_users, topic_id: @post.topic_id)
|
|
end
|
|
|
|
def trash_public_post_actions
|
|
if public_post_actions = PostAction.publics.where(post_id: @post.id)
|
|
public_post_actions.each { |pa| permanent? ? pa.destroy! : pa.trash!(@user) }
|
|
|
|
return if permanent?
|
|
|
|
@post.custom_fields["deleted_public_actions"] = public_post_actions.ids
|
|
@post.save_custom_fields
|
|
|
|
f = PostActionType.public_types.map { |k, _| ["#{k}_count", 0] }
|
|
Post.with_deleted.where(id: @post.id).update_all(Hash[*f.flatten])
|
|
end
|
|
end
|
|
|
|
def trash_revisions
|
|
return unless permanent?
|
|
@post.revisions.each(&:destroy!)
|
|
end
|
|
|
|
def agree(reviewable)
|
|
notify_deletion(reviewable)
|
|
result = reviewable.perform(@user, :agree_and_keep, post_was_deleted: true)
|
|
reviewable.transition_to(result.transition_to, @user)
|
|
end
|
|
|
|
def ignore(reviewable)
|
|
reviewable.perform_ignore_and_do_nothing(@user, post_was_deleted: true)
|
|
reviewable.transition_to(:ignored, @user)
|
|
end
|
|
|
|
def notify_deletion(reviewable, options = {})
|
|
return if @post.user.blank?
|
|
|
|
allowed_user = @user.human? && @user.staff?
|
|
return unless allowed_user && rs = reviewable.reviewable_scores.order("created_at DESC").first
|
|
|
|
# ReviewableScore#types is a superset of PostActionType#flag_types.
|
|
# If the reviewable score type is not on the latter, it means it's not a flag by a user and
|
|
# must be an automated flag like `needs_approval`. There's no flag reason for these kind of types.
|
|
flag_type = PostActionType.flag_types[rs.reviewable_score_type]
|
|
return unless flag_type
|
|
|
|
notify_responders = options[:notify_responders]
|
|
|
|
Jobs.enqueue(
|
|
:send_system_message,
|
|
user_id: @post.user_id,
|
|
message_type:
|
|
(
|
|
if notify_responders
|
|
"flags_agreed_and_post_deleted_for_responders"
|
|
else
|
|
"flags_agreed_and_post_deleted"
|
|
end
|
|
),
|
|
message_options: {
|
|
flagged_post_raw_content: notify_responders ? options[:parent_post].raw : @post.raw,
|
|
flagged_post_response_raw_content: @post.raw,
|
|
url: notify_responders ? options[:parent_post].url : @post.url,
|
|
flag_reason:
|
|
I18n.t(
|
|
"flag_reasons#{".responder" if notify_responders}.#{flag_type}",
|
|
locale: SiteSetting.default_locale,
|
|
base_path: Discourse.base_path,
|
|
),
|
|
},
|
|
)
|
|
end
|
|
|
|
def trash_user_actions
|
|
UserAction
|
|
.where(target_post_id: @post.id)
|
|
.each do |ua|
|
|
row = {
|
|
action_type: ua.action_type,
|
|
user_id: ua.user_id,
|
|
acting_user_id: ua.acting_user_id,
|
|
target_topic_id: ua.target_topic_id,
|
|
target_post_id: ua.target_post_id,
|
|
}
|
|
UserAction.remove_action!(row)
|
|
end
|
|
end
|
|
|
|
def remove_associated_replies
|
|
post_ids = PostReply.where(reply_post_id: @post.id).pluck(:post_id)
|
|
|
|
if post_ids.present?
|
|
PostReply.where(reply_post_id: @post.id).delete_all
|
|
Post.where(id: post_ids).each { |p| p.update_column :reply_count, p.replies.count }
|
|
end
|
|
end
|
|
|
|
def remove_associated_notifications
|
|
Notification.where(topic_id: @post.topic_id, post_number: @post.post_number).delete_all
|
|
end
|
|
|
|
def update_associated_category_latest_topic
|
|
return unless @post.topic && @post.topic.category
|
|
if @post.id != @post.topic.category.latest_post_id &&
|
|
!(@post.is_first_post? && @post.topic_id == @post.topic.category.latest_topic_id)
|
|
return
|
|
end
|
|
|
|
@post.topic.category.update_latest
|
|
end
|
|
|
|
def update_user_counts
|
|
author = @post.user
|
|
|
|
return unless author
|
|
|
|
author.create_user_stat if author.user_stat.nil?
|
|
|
|
if @post.created_at == author.user_stat.first_post_created_at
|
|
author.user_stat.update!(
|
|
first_post_created_at: author.posts.order("created_at ASC").first.try(:created_at),
|
|
)
|
|
end
|
|
|
|
UserStatCountUpdater.decrement!(@post)
|
|
|
|
if @post.created_at == author.last_posted_at
|
|
author.update_column(
|
|
:last_posted_at,
|
|
author.posts.order("created_at DESC").first.try(:created_at),
|
|
)
|
|
end
|
|
|
|
if @post.is_first_post? && @post.topic && !@post.topic.private_message?
|
|
# Update stats of all people who replied
|
|
update_post_counts(:decrement)
|
|
end
|
|
end
|
|
|
|
def update_imap_sync(post, sync)
|
|
return if !SiteSetting.enable_imap
|
|
incoming = IncomingEmail.find_by(post_id: post.id, topic_id: post.topic_id)
|
|
return if !incoming || !incoming.imap_uid
|
|
incoming.update(imap_sync: sync)
|
|
end
|
|
|
|
def update_post_counts(operator)
|
|
counts =
|
|
Post
|
|
.where(post_type: Post.types[:regular], topic_id: @post.topic_id)
|
|
.where("post_number > 1")
|
|
.group(:user_id)
|
|
.count
|
|
|
|
counts.each do |user_id, count|
|
|
if user_stat = UserStat.where(user_id: user_id).first
|
|
if operator == :decrement
|
|
UserStatCountUpdater.set!(
|
|
user_stat: user_stat,
|
|
count: user_stat.post_count - count,
|
|
count_column: :post_count,
|
|
)
|
|
else
|
|
UserStatCountUpdater.set!(
|
|
user_stat: user_stat,
|
|
count: user_stat.post_count + count,
|
|
count_column: :post_count,
|
|
)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|