Class: TopicsController

Inherits:
ApplicationController show all
Defined in:
app/controllers/topics_controller.rb

Constant Summary

Constants inherited from ApplicationController

ApplicationController::LEGACY_NO_THEMES, ApplicationController::LEGACY_NO_UNOFFICIAL_PLUGINS, ApplicationController::NO_PLUGINS, ApplicationController::NO_THEMES, ApplicationController::NO_UNOFFICIAL_PLUGINS, ApplicationController::SAFE_MODE

Constants included from CanonicalURL::ControllerExtensions

CanonicalURL::ControllerExtensions::ALLOWED_CANONICAL_PARAMS

Instance Attribute Summary

Attributes inherited from ApplicationController

#theme_id

Instance Method Summary collapse

Methods inherited from ApplicationController

#application_layout, #can_cache_content?, #clear_notifications, #conditionally_allow_site_embedding, #current_homepage, #discourse_expires_in, #dont_cache_page, #ember_cli_required?, #fetch_user_from_params, #guardian, #handle_permalink, #handle_theme, #handle_unverified_request, #has_escaped_fragment?, #immutable_for, #no_cookies, #perform_refresh_session, #post_ids_including_replies, #preload_json, #rate_limit_second_factor!, #redirect_with_client_support, #render_json_dump, #render_serialized, requires_plugin, #rescue_discourse_actions, #resolve_safe_mode, #secure_session, #serialize_data, #set_current_user_for_logs, #set_layout, #set_mobile_view, #set_mp_snapshot_fields, #show_browser_update?, #store_preloaded, #use_crawler_layout?, #with_resolved_locale

Methods included from VaryHeader

#ensure_vary_header

Methods included from ReadOnlyMixin

#add_readonly_header, #allowed_in_staff_writes_only_mode?, #block_if_readonly_mode, #check_readonly_mode, included, #staff_writes_only_mode?

Methods included from Hijack

#hijack

Methods included from GlobalPath

#cdn_path, #cdn_relative_path, #full_cdn_url, #path, #upload_cdn_path

Methods included from JsonError

#create_errors_json

Methods included from CanonicalURL::ControllerExtensions

#canonical_url, #default_canonical, included

Methods included from CurrentUser

#clear_current_user, #current_user, has_auth_cookie?, #is_api?, #is_user_api?, #log_off_user, #log_on_user, lookup_from_env, #refresh_session

Instance Method Details

#archive_message ⇒ Object 



602
603
604
 
# File 'app/controllers/topics_controller.rb', line 602

def archive_message
  toggle_archive_message(true)
end

#bookmark ⇒ Object 



647
648
649
650
651
652
653
654
655
656
 
# File 'app/controllers/topics_controller.rb', line 647

def bookmark
  topic = Topic.find(params[:topic_id].to_i)

  bookmark_manager = BookmarkManager.new(current_user)
  bookmark_manager.create_for(bookmarkable_id: topic.id, bookmarkable_type: "Topic")

  return render_json_error(bookmark_manager, status: 400) if bookmark_manager.errors.any?

  render body: nil
end

#bulk ⇒ Object

Raises:

  • (ActionController::ParameterMissing) 


993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
 
# File 'app/controllers/topics_controller.rb', line 993

def bulk
  if params[:topic_ids].present?
    unless Array === params[:topic_ids]
      raise Discourse::InvalidParameters.new("Expecting topic_ids to contain a list of topic ids")
    end
    topic_ids = params[:topic_ids].map { |t| t.to_i }
  elsif params[:filter] == "unread"
    topic_ids = bulk_unread_topic_ids
  else
    raise ActionController::ParameterMissing.new(:topic_ids)
  end

  operation =
    params
      .require(:operation)
      .permit(
        :type,
        :group,
        :category_id,
        :notification_level_id,
        *DiscoursePluginRegistry.permitted_bulk_action_parameters,
        tags: [],
      )
      .to_h
      .symbolize_keys

  raise ActionController::ParameterMissing.new(:operation_type) if operation[:type].blank?
  operator = TopicsBulkAction.new(current_user, topic_ids, operation, group: operation[:group])
  changed_topic_ids = operator.perform!
  render_json_dump topic_ids: changed_topic_ids
end

#change_post_owners ⇒ Object 



888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
 
# File 'app/controllers/topics_controller.rb', line 888

def change_post_owners
  params.require(:post_ids)
  params.require(:topic_id)
  params.require(:username)

  guardian.ensure_can_change_post_owner!

  begin
    PostOwnerChanger.new(
      post_ids: params[:post_ids].to_a,
      topic_id: params[:topic_id].to_i,
      new_owner: User.find_by(username: params[:username]),
      acting_user: current_user,
    ).change_owner!
    render json: success_json
  rescue ArgumentError
    render json: failed_json, status: 422
  end
end

#change_timestamps ⇒ Object 



908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
 
# File 'app/controllers/topics_controller.rb', line 908

def change_timestamps
  topic_id = params.require(:topic_id).to_i
  timestamp = params.require(:timestamp).to_f

  guardian.ensure_can_change_post_timestamps!

  topic = Topic.with_deleted.find(topic_id)
  previous_timestamp = topic.first_post.created_at

  begin
    TopicTimestampChanger.new(topic: topic, timestamp: timestamp).change!

    StaffActionLogger.new(current_user).log_topic_timestamps_changed(
      topic,
      Time.zone.at(timestamp),
      previous_timestamp,
    )

    render json: success_json
  rescue ActiveRecord::RecordInvalid, TopicTimestampChanger::InvalidTimestampError
    render json: failed_json, status: 422
  end
end

#clear_pin ⇒ Object 



932
933
934
935
936
937
 
# File 'app/controllers/topics_controller.rb', line 932

def clear_pin
  topic = Topic.find_by(id: params[:topic_id].to_i)
  guardian.ensure_can_see!(topic)
  topic.clear_pin_for(current_user)
  render body: nil
end

#convert_topic ⇒ Object 



1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
 
# File 'app/controllers/topics_controller.rb', line 1135

def convert_topic
  params.require(:id)
  params.require(:type)
  topic = Topic.find_by(id: params[:id])
  guardian.ensure_can_convert_topic!(topic)

  if params[:type] == "public"
    converted_topic =
      topic.convert_to_public_topic(current_user, category_id: params[:category_id])
  else
    converted_topic = topic.convert_to_private_message(current_user)
  end
  render_topic_changes(converted_topic)
rescue ActiveRecord::RecordInvalid => ex
  render_json_error(ex)
end

#destroy ⇒ Object 



658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
 
# File 'app/controllers/topics_controller.rb', line 658

def destroy
  topic = Topic.with_deleted.find_by(id: params[:id])
  force_destroy = ActiveModel::Type::Boolean.new.cast(params[:force_destroy])

  if force_destroy
    if !topic
      raise Discourse::InvalidAccess
    elsif !guardian.can_permanently_delete?(topic)
      return render_json_error topic.cannot_permanently_delete_reason(current_user), status: 403
    end
  else
    guardian.ensure_can_delete!(topic)
  end

  PostDestroyer.new(
    current_user,
    topic.ordered_posts.with_deleted.first,
    context: params[:context],
    force_destroy: force_destroy,
  ).destroy

  render body: nil
rescue Discourse::InvalidAccess
  render_json_error I18n.t("delete_topic_failed")
end

#destroy_timings ⇒ Object 



322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
 
# File 'app/controllers/topics_controller.rb', line 322

def destroy_timings
  topic_id = params[:topic_id].to_i

  if params[:last].to_s == "1"
    PostTiming.destroy_last_for(current_user, topic_id: topic_id)
  else
    PostTiming.destroy_for(current_user.id, [topic_id])
  end

  last_notification =
    Notification
      .where(user_id: current_user.id, topic_id: topic_id)
      .order(created_at: :desc)
      .limit(1)
      .first

  last_notification.update!(read: false) if last_notification

  render body: nil
end

#excerpt ⇒ Object 



694
695
696
 
# File 'app/controllers/topics_controller.rb', line 694

def excerpt
  render body: nil
end

#excerpts ⇒ Object 



280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
 
# File 'app/controllers/topics_controller.rb', line 280

def excerpts
  params.require(:topic_id)
  params.require(:post_ids)

  unless Array === params[:post_ids]
    render_json_error("Expecting post_ids to contain a list of posts ids")
    return
  end
  post_ids = params[:post_ids].map(&:to_i)

  if post_ids.length > 100
    render_json_error("Requested a chunk that is too big")
    return
  end

  @topic = Topic.with_deleted.where(id: params[:topic_id]).first
  guardian.ensure_can_see!(@topic)

  @posts =
    Post
      .where(hidden: false, deleted_at: nil, topic_id: @topic.id)
      .where("posts.id in (?)", post_ids)
      .joins("LEFT JOIN users u on u.id = posts.user_id")
      .pluck(:id, :cooked, :username, :action_code, :created_at)
      .map do |post_id, cooked, username, action_code, created_at|
        attrs = {
          post_id: post_id,
          username: username,
          excerpt: PrettyText.excerpt(cooked, 800, keep_emoji_images: true),
        }

        if action_code
          attrs[:action_code] = action_code
          attrs[:created_at] = created_at
        end

        attrs
      end

  render json: @posts.to_json
end

#feature_stats ⇒ Object 



464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
 
# File 'app/controllers/topics_controller.rb', line 464

def feature_stats
  params.require(:category_id)
  category_id = params[:category_id].to_i

  visible_topics = Topic.listable_topics.visible

  render json: {
           pinned_in_category_count:
             visible_topics
               .where(category_id: category_id)
               .where(pinned_globally: false)
               .where.not(pinned_at: nil)
               .count,
           pinned_globally_count:
             visible_topics.where(pinned_globally: true).where.not(pinned_at: nil).count,
           banner_count: Topic.listable_topics.where(archetype: Archetype.banner).count,
         }
end

#feed ⇒ Object

Raises:



968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
 
# File 'app/controllers/topics_controller.rb', line 968

def feed
  raise Discourse::NotFound if !Post.exists?(topic_id: params[:topic_id])

  begin
    @topic_view = TopicView.new(params[:topic_id])
  rescue Discourse::NotLoggedIn
    raise Discourse::NotFound
  rescue Discourse::InvalidAccess => ex
    deleted =
      guardian.can_see_topic?(ex.obj, false) ||
        (!guardian.can_see_topic?(ex.obj) && ex.obj&.access_topic_via_group && ex.obj.deleted_at)

    raise Discourse::NotFound.new(
            nil,
            check_permalinks: deleted,
            original_path: ex.obj.relative_url,
          )
  end

  discourse_expires_in 1.minute

  response.headers["X-Robots-Tag"] = "noindex, nofollow"
  render "topics/show", formats: [:rss]
end

#id_for_slug ⇒ Object

Raises:



39
40
41
42
43
44
 
# File 'app/controllers/topics_controller.rb', line 39

def id_for_slug
  topic = Topic.find_by_slug(params[:slug])
  guardian.ensure_can_see!(topic)
  raise Discourse::NotFound unless topic
  render json: { slug: topic.slug, topic_id: topic.id, url: topic.url }
end

#invite ⇒ Object

Raises:



753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
 
# File 'app/controllers/topics_controller.rb', line 753

def invite
  topic = Topic.find_by(id: params[:topic_id])
  raise Discourse::NotFound if !topic

  return render_json_error(I18n.t("topic_invite.not_pm")) if !topic.private_message?

  if !pm_has_slots?(topic)
    return(
      render_json_error(
        I18n.t(
          "pm_reached_recipients_limit",
          recipients_limit: SiteSetting.max_allowed_message_recipients,
        ),
      )
    )
  end

  guardian.ensure_can_invite_to!(topic)

  username_or_email = params[:user] ? fetch_username : fetch_email
  group_ids =
    Group.lookup_groups(group_ids: params[:group_ids], group_names: params[:group_names]).pluck(
      :id,
    )

  begin
    if topic.invite(current_user, username_or_email, group_ids, params[:custom_message])
      if user = User.find_by_username_or_email(username_or_email)
        render_json_dump BasicUserSerializer.new(user, scope: guardian, root: "user")
      else
        render json: success_json
      end
    else
      json = failed_json

      unless topic.private_message?
        group_names =
          topic
            .category
            .visible_group_names(current_user)
            .where(automatic: false)
            .pluck(:name)
            .join(", ")

        if group_names.present?
          json.merge!(errors: [I18n.t("topic_invite.failed_to_invite", group_names: group_names)])
        end
      end

      render json: json, status: 422
    end
  rescue Topic::UserExists, Topic::NotAllowed => e
    render json: { errors: [e.message] }, status: 422
  end
end

#invite_group ⇒ Object

Raises:



726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
 
# File 'app/controllers/topics_controller.rb', line 726

def invite_group
  group = Group.find_by(name: params[:group])
  raise Discourse::NotFound if !group

  topic = Topic.find_by(id: params[:topic_id])
  raise Discourse::NotFound if !topic

  if !pm_has_slots?(topic)
    return(
      render_json_error(
        I18n.t(
          "pm_reached_recipients_limit",
          recipients_limit: SiteSetting.max_allowed_message_recipients,
        ),
      )
    )
  end

  if topic.private_message?
    guardian.ensure_can_invite_group_to_private_message!(group, topic)
    topic.invite_group(current_user, group)
    render_json_dump BasicGroupSerializer.new(group, scope: guardian, root: "group")
  else
    render json: failed_json, status: 422
  end
end

#make_banner ⇒ Object 



578
579
580
581
582
583
584
585
 
# File 'app/controllers/topics_controller.rb', line 578

def make_banner
  topic = Topic.find_by(id: params[:topic_id].to_i)
  guardian.ensure_can_banner_topic!(topic)

  topic.make_banner!(current_user)

  render body: nil
end

#merge_topic ⇒ Object

Raises:



823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
 
# File 'app/controllers/topics_controller.rb', line 823

def merge_topic
  topic_id = params.require(:topic_id)
  destination_topic_id = params.require(:destination_topic_id)
  params.permit(:participants)
  params.permit(:chronological_order)
  params.permit(:archetype)

  raise Discourse::InvalidAccess if params[:archetype] == "private_message" && !guardian.is_staff?

  topic = Topic.find_by(id: topic_id)
  guardian.ensure_can_move_posts!(topic)

  destination_topic = Topic.find_by(id: destination_topic_id)
  guardian.ensure_can_create_post_on_topic!(destination_topic)

  args = {}
  args[:destination_topic_id] = destination_topic_id.to_i
  args[:chronological_order] = params[:chronological_order] == "true"

  if params[:archetype].present?
    args[:archetype] = params[:archetype]
    args[:participants] = params[:participants] if params[:participants].present? &&
      params[:archetype] == "private_message"
  end

  destination_topic = topic.move_posts(current_user, topic.posts.pluck(:id), args)
  render_topic_changes(destination_topic)
end

#move_posts ⇒ Object 



852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
 
# File 'app/controllers/topics_controller.rb', line 852

def move_posts
  post_ids = params.require(:post_ids)
  topic_id = params.require(:topic_id)
  params.permit(:category_id)
  params.permit(:tags)
  params.permit(:participants)
  params.permit(:chronological_order)
  params.permit(:archetype)

  raise Discourse::InvalidAccess if params[:archetype] == "private_message" && !guardian.is_staff?

  topic = Topic.with_deleted.find_by(id: topic_id)
  guardian.ensure_can_move_posts!(topic)

  if params[:title].present?
    # when creating a new topic, ensure the 1st post is a regular post
    if Post.where(topic: topic, id: post_ids).order(:post_number).pick(:post_type) !=
         Post.types[:regular]
      return(
        render_json_error(
          "When moving posts to a new topic, the first post must be a regular post.",
        )
      )
    end

    if params[:category_id].present?
      guardian.ensure_can_create_topic_on_category!(params[:category_id])
    end
  end

  destination_topic = move_posts_to_destination(topic)
  render_topic_changes(destination_topic)
rescue ActiveRecord::RecordInvalid, ActiveRecord::RecordNotSaved => ex
  render_json_error(ex)
end

#move_to_inbox ⇒ Object 



606
607
608
 
# File 'app/controllers/topics_controller.rb', line 606

def move_to_inbox
  toggle_archive_message(false)
end

#mute ⇒ Object 



524
525
526
 
# File 'app/controllers/topics_controller.rb', line 524

def mute
  toggle_mute
end

#post_ids ⇒ Object 



237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
 
# File 'app/controllers/topics_controller.rb', line 237

def post_ids
  params.require(:topic_id)
  params.permit(:post_number, :username_filters, :filter)

  options = {
    filter_post_number: params[:post_number],
    filter: params[:filter],
    skip_limit: true,
    asc: true,
    skip_custom_fields: true,
  }

  fetch_topic_view(options)
  render_json_dump(post_ids: @topic_view.posts.pluck(:id))
end

#posts ⇒ Object 



253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
 
# File 'app/controllers/topics_controller.rb', line 253

def posts
  params.require(:topic_id)
  params.permit(:post_ids, :post_number, :username_filters, :filter, :include_suggested)

  include_suggested = params[:include_suggested] == "true"

  options = {
    filter_post_number: params[:post_number],
    post_ids: params[:post_ids],
    asc: ActiveRecord::Type::Boolean.new.deserialize(params[:asc]),
    filter: params[:filter],
    include_suggested: include_suggested,
    include_related: include_suggested,
  }

  fetch_topic_view(options)

  render_json_dump(
    TopicViewPostsSerializer.new(
      @topic_view,
      scope: guardian,
      root: false,
      include_raw: !!params[:include_raw],
    ),
  )
end

#private_message_reset_new ⇒ Object 



1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
 
# File 'app/controllers/topics_controller.rb', line 1025

def private_message_reset_new
  topic_query = TopicQuery.new(current_user, limit: false)

  if params[:topic_ids].present?
    unless Array === params[:topic_ids]
      raise Discourse::InvalidParameters.new("Expecting topic_ids to contain a list of topic ids")
    end

    topic_scope =
      topic_query.private_messages_for(current_user, :all).where(
        "topics.id IN (?)",
        params[:topic_ids].map(&:to_i),
      )
  else
    params.require(:inbox)
    inbox = params[:inbox].to_s
    filter = private_message_filter(topic_query, inbox)
    topic_scope = topic_query.filter_private_message_new(current_user, filter)
  end

  topic_ids =
    TopicsBulkAction.new(current_user, topic_scope.pluck(:id), type: "dismiss_topics").perform!

  render json: success_json.merge(topic_ids: topic_ids)
end

#publish ⇒ Object

Raises:



190
191
192
193
194
195
196
197
198
199
200
201
202
 
# File 'app/controllers/topics_controller.rb', line 190

def publish
  params.permit(:id, :destination_category_id)

  topic = Topic.find(params[:id])
  category = Category.find(params[:destination_category_id])

  raise Discourse::InvalidParameters if category.id == SiteSetting.shared_drafts_category.to_i

  guardian.ensure_can_publish_topic!(topic, category)
  topic = TopicPublisher.new(topic, current_user, category.id).publish!

  render_serialized(topic.reload, BasicTopicSerializer)
end

#re_pin ⇒ Object 



939
940
941
942
943
944
 
# File 'app/controllers/topics_controller.rb', line 939

def re_pin
  topic = Topic.find_by(id: params[:topic_id].to_i)
  guardian.ensure_can_see!(topic)
  topic.re_pin_for(current_user)
  render body: nil
end

#recover ⇒ Object 



684
685
686
687
688
689
690
691
692
 
# File 'app/controllers/topics_controller.rb', line 684

def recover
  topic = Topic.where(id: params[:topic_id]).with_deleted.first
  guardian.ensure_can_recover_topic!(topic)

  first_post = topic.posts.with_deleted.order(:post_number).first
  PostDestroyer.new(current_user, first_post, context: params[:context]).recover

  render body: nil
end

#remove_allowed_group ⇒ Object 



714
715
716
717
718
719
720
721
722
723
724
 
# File 'app/controllers/topics_controller.rb', line 714

def remove_allowed_group
  params.require(:name)
  topic = Topic.find_by(id: params[:topic_id])
  guardian.ensure_can_remove_allowed_users!(topic)

  if topic.remove_allowed_group(current_user, params[:name])
    render json: success_json
  else
    render json: failed_json, status: 422
  end
end

#remove_allowed_user ⇒ Object

Raises:



698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
 
# File 'app/controllers/topics_controller.rb', line 698

def remove_allowed_user
  params.require(:username)
  topic = Topic.find_by(id: params[:topic_id])
  raise Discourse::NotFound unless topic
  user = User.find_by(username: params[:username])
  raise Discourse::NotFound unless user

  guardian.ensure_can_remove_allowed_users!(topic, user)

  if topic.remove_allowed_user(current_user, user)
    render json: success_json
  else
    render json: failed_json, status: 422
  end
end

#remove_banner ⇒ Object 



587
588
589
590
591
592
593
594
 
# File 'app/controllers/topics_controller.rb', line 587

def remove_banner
  topic = Topic.find_by(id: params[:topic_id].to_i)
  guardian.ensure_can_banner_topic!(topic)

  topic.remove_banner!(current_user)

  render body: nil
end

#remove_bookmarks ⇒ Object 



596
597
598
599
600
 
# File 'app/controllers/topics_controller.rb', line 596

def remove_bookmarks
  topic = Topic.find(params[:topic_id].to_i)
  BookmarkManager.new(current_user).destroy_for_topic(topic)
  render body: nil
end

#reset_bump_date ⇒ Object

Raises:



1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
 
# File 'app/controllers/topics_controller.rb', line 1152

def reset_bump_date
  params.require(:id)
  guardian.ensure_can_update_bumped_at!

  topic = Topic.find_by(id: params[:id])
  raise Discourse::NotFound.new unless topic

  topic.reset_bumped_at
  render body: nil
end

#reset_new ⇒ Object 



1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
 
# File 'app/controllers/topics_controller.rb', line 1051

def reset_new
  topic_scope =
    if current_user.new_new_view_enabled?
      if (params[:dismiss_topics] && params[:dismiss_posts])
        TopicQuery.new(current_user).new_and_unread_results(limit: false)
      elsif params[:dismiss_topics]
        TopicQuery.new(current_user).new_results(limit: false)
      elsif params[:dismiss_posts]
        TopicQuery.new(current_user).unread_results(limit: false)
      else
        Topic.none
      end
    else
      TopicQuery.new(current_user).new_results(limit: false)
    end
  if tag_name = params[:tag_id]
    tag_name = DiscourseTagging.visible_tags(guardian).where(name: tag_name).pluck(:name).first
  end

  topic_scope =
    if params[:category_id].present?
      category_id = params[:category_id].to_i

      category_ids =
        if ActiveModel::Type::Boolean.new.cast(params[:include_subcategories])
          Category.subcategory_ids(category_id)
        else
          [category_id]
        end

      category_ids &= guardian.allowed_category_ids
      if category_ids.blank?
        scope = topic_scope.none
      else
        scope = topic_scope.where(category_id: category_ids)
        scope = scope.joins(:tags).where(tags: { name: tag_name }) if tag_name
      end
      scope
    elsif tag_name.present?
      topic_scope.joins(:tags).where(tags: { name: tag_name })
    else
      if params[:tracked].to_s == "true"
        TopicQuery.tracked_filter(topic_scope, current_user.id)
      else
        current_user.user_stat.update_column(:new_since, Time.zone.now)
        topic_scope
      end
    end

  if params[:topic_ids].present?
    unless Array === params[:topic_ids]
      raise Discourse::InvalidParameters.new("Expecting topic_ids to contain a list of topic ids")
    end

    topic_ids = params[:topic_ids].map(&:to_i)
    topic_scope = topic_scope.where(id: topic_ids)
  end

  dismissed_topic_ids = []
  dismissed_post_topic_ids = []

  if !current_user.new_new_view_enabled? || params[:dismiss_topics]
    dismissed_topic_ids =
      TopicsBulkAction.new(current_user, topic_scope.pluck(:id), type: "dismiss_topics").perform!
  end

  if params[:dismiss_posts]
    if params[:untrack]
      dismissed_post_topic_ids =
        TopicsBulkAction.new(
          current_user,
          topic_scope.pluck(:id),
          type: "change_notification_level",
          notification_level_id: NotificationLevels.topic_levels[:regular],
        ).perform!
    else
      dismissed_post_topic_ids =
        TopicsBulkAction.new(current_user, topic_scope.pluck(:id), type: "dismiss_posts").perform!
    end
  end

  render_json_dump topic_ids: dismissed_topic_ids.concat(dismissed_post_topic_ids).uniq
end

#set_notifications ⇒ Object 



809
810
811
812
813
814
815
816
817
818
819
820
821
 
# File 'app/controllers/topics_controller.rb', line 809

def set_notifications
  user =
    if is_api? && @guardian.is_admin? &&
         (params[:username].present? || params[:external_id].present?)
      fetch_user_from_params
    else
      current_user
    end

  topic = Topic.find(params[:topic_id].to_i)
  TopicUser.change(user, topic.id, notification_level: params[:notification_level].to_i)
  render json: success_json
end

#set_slow_mode ⇒ Object 



1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
 
# File 'app/controllers/topics_controller.rb', line 1163

def set_slow_mode
  topic = Topic.find(params[:topic_id])
  slow_mode_type = TopicTimer.types[:clear_slow_mode]
  timer = TopicTimer.find_by(topic: topic, status_type: slow_mode_type)

  guardian.ensure_can_moderate!(topic)
  topic.update!(slow_mode_seconds: params[:seconds])
  enabled = params[:seconds].to_i > 0

  time = enabled && params[:enabled_until].present? ? params[:enabled_until] : nil

  topic.set_or_create_timer(slow_mode_type, time, by_user: timer&.user)

  head :ok
end

#show ⇒ Object 



53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
 
# File 'app/controllers/topics_controller.rb', line 53

def show
  flash["referer"] ||= request.referer[0..255] if request.referer

  # TODO: We'd like to migrate the wordpress feed to another url. This keeps up backwards
  # compatibility with existing installs.
  return wordpress if params[:best].present?

  # work around people somehow sending in arrays,
  # arrays are not supported
  params[:page] = begin
    params[:page].to_i
  rescue StandardError
    1
  end

  opts =
    params.slice(
      :username_filters,
      :filter,
      :page,
      :post_number,
      :show_deleted,
      :replies_to_post_number,
      :filter_upwards_post_id,
      :filter_top_level_replies,
    )
  username_filters = opts[:username_filters]

  opts[:print] = true if params[:print] == "true"
  opts[:username_filters] = username_filters.split(",") if username_filters.is_a?(String)

  # Special case: a slug with a number in front should look by slug first before looking
  # up that particular number
  if params[:id] && params[:id] =~ /\A\d+[^\d\\]+\z/
    topic = Topic.find_by_slug(params[:id])
    return redirect_to_correct_topic(topic, opts[:post_number]) if topic
  end

  if opts[:print]
    raise Discourse::InvalidAccess if SiteSetting.max_prints_per_hour_per_user.zero?
    begin
      unless @guardian.is_admin?
        RateLimiter.new(
          current_user,
          "print-topic-per-hour",
          SiteSetting.max_prints_per_hour_per_user,
          1.hour,
        ).performed!
      end
    rescue RateLimiter::LimitExceeded
      return render_json_error I18n.t("rate_limiter.slow_down")
    end
  end

  begin
    @topic_view = TopicView.new(params[:id] || params[:topic_id], current_user, opts)
  rescue Discourse::NotFound => ex
    if params[:id]
      topic = Topic.find_by_slug(params[:id])
      return redirect_to_correct_topic(topic, opts[:post_number]) if topic
    end

    raise ex
  rescue Discourse::NotLoggedIn => ex
    raise(SiteSetting.detailed_404 ? ex : Discourse::NotFound)
  rescue Discourse::InvalidAccess => ex
    # If the user can't see the topic, clean up notifications for it.
    Notification.remove_for(current_user.id, params[:topic_id]) if current_user

    deleted =
      guardian.can_see_topic?(ex.obj, false) ||
        (!guardian.can_see_topic?(ex.obj) && ex.obj&.access_topic_via_group && ex.obj.deleted_at)

    if SiteSetting.detailed_404
      if deleted
        raise Discourse::NotFound.new(
                "deleted topic",
                custom_message: "deleted_topic",
                status: 410,
                check_permalinks: true,
                original_path: ex.obj.relative_url,
              )
      elsif !guardian.can_see_topic?(ex.obj) && group = ex.obj&.access_topic_via_group
        raise Discourse::InvalidAccess.new(
                "not in group",
                ex.obj,
                custom_message: "not_in_group.title_topic",
                custom_message_params: {
                  group: group.name,
                },
                group: group,
              )
      end

      raise ex
    else
      raise Discourse::NotFound.new(
              nil,
              check_permalinks: deleted,
              original_path: ex.obj.relative_url,
            )
    end
  end

  page = params[:page]
  if (page < 0) || ((page - 1) * @topic_view.chunk_size >= @topic_view.topic.highest_post_number)
    raise Discourse::NotFound
  end

  discourse_expires_in 1.minute

  if slugs_do_not_match || (!request.format.json? && params[:slug].nil?)
    redirect_to_correct_topic(@topic_view.topic, opts[:post_number])
    return
  end

  track_visit_to_topic

  if should_track_visit_to_topic?
    @topic_view.draft = Draft.get(current_user, @topic_view.draft_key, @topic_view.draft_sequence)
  end

  response.headers["X-Robots-Tag"] = "noindex" unless @topic_view.topic.visible

  canonical_url UrlHelper.absolute_without_cdn(@topic_view.canonical_path)

  # provide hint to crawlers only for now
  # we would like to give them a bit more signal about age of data
  if use_crawler_layout?
    if last_modified = @topic_view.posts&.map { |p| p.updated_at }&.max&.httpdate
      response.headers["Last-Modified"] = last_modified
    end
  end

  perform_show_response
end

#show_by_external_id ⇒ Object

Raises:



46
47
48
49
50
51
 
# File 'app/controllers/topics_controller.rb', line 46

def show_by_external_id
  topic = Topic.find_by(external_id: params[:external_id])
  raise Discourse::NotFound unless topic
  guardian.ensure_can_see!(topic)
  redirect_to_correct_topic(topic, params[:post_number])
end

#status ⇒ Object 



483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
 
# File 'app/controllers/topics_controller.rb', line 483

def status
  params.require(:status)
  params.require(:enabled)
  params.permit(:until)

  status = params[:status]
  topic_id = params[:topic_id].to_i
  enabled = params[:enabled] == "true"

  check_for_status_presence(:status, status)
  @topic =
    if params[:category_id]
      Topic.find_by(id: topic_id, category_id: params[:category_id].to_i)
    else
      Topic.find_by(id: topic_id)
    end

  case status
  when "closed"
    guardian.ensure_can_close_topic!(@topic)
  when "archived"
    guardian.ensure_can_archive_topic!(@topic)
  when "visible"
    guardian.ensure_can_toggle_topic_visibility!(@topic)
  when "pinned"
    guardian.ensure_can_pin_unpin_topic!(@topic)
  else
    guardian.ensure_can_moderate!(@topic)
  end

  params[:until] === "" ? params[:until] = nil : params[:until]

  @topic.update_status(status, enabled, current_user, until: params[:until])

  render json:
           success_json.merge!(
             topic_status_update:
               TopicTimerSerializer.new(TopicTimer.find_by(topic: @topic), root: false),
           )
end

#summary ⇒ Object 



1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
 
# File 'app/controllers/topics_controller.rb', line 1179

def summary
  topic = Topic.find(params[:topic_id])
  guardian.ensure_can_see!(topic)
  strategy = Summarization::Base.selected_strategy

  if strategy.nil? || !Summarization::Base.can_see_summary?(topic, current_user)
    raise Discourse::NotFound
  end

  RateLimiter.new(current_user, "summary", 6, 5.minutes).performed! if current_user

  opts = params.permit(:skip_age_check)

  if params[:stream] && current_user
    Jobs.enqueue(
      :stream_topic_summary,
      topic_id: topic.id,
      user_id: current_user.id,
      opts: opts.as_json,
    )

    render json: success_json
  else
    hijack do
      summary = TopicSummarization.new(strategy).summarize(topic, current_user, opts)

      render_serialized(summary, TopicSummarySerializer)
    end
  end
end

#timer ⇒ Object 



532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
 
# File 'app/controllers/topics_controller.rb', line 532

def timer
  params.permit(:time, :based_on_last_post, :category_id)
  params.require(:status_type)

  status_type =
    begin
      TopicTimer.types.fetch(params[:status_type].to_sym)
    rescue StandardError
      invalid_param(:status_type)
    end
  based_on_last_post = params[:based_on_last_post]
  params.require(:duration_minutes) if based_on_last_post

  topic = Topic.find_by(id: params[:topic_id])
  guardian.ensure_can_moderate!(topic)

  guardian.ensure_can_delete!(topic) if TopicTimer.destructive_types.values.include?(status_type)

  options = { by_user: current_user, based_on_last_post: based_on_last_post }

  options.merge!(category_id: params[:category_id]) if !params[:category_id].blank?
  if params[:duration_minutes].present?
    options.merge!(duration_minutes: params[:duration_minutes].to_i)
  end
  options.merge!(duration: params[:duration].to_i) if params[:duration].present?

  begin
    topic_timer = topic.set_or_create_timer(status_type, params[:time], **options)
  rescue ActiveRecord::RecordInvalid => e
    return render_json_error(e.message)
  end

  if topic.save
    render json:
             success_json.merge!(
               execute_at: topic_timer&.execute_at,
               duration_minutes: topic_timer&.duration_minutes,
               based_on_last_post: topic_timer&.based_on_last_post,
               closed: topic.closed,
               category_id: topic_timer&.category_id,
             )
  else
    render_json_error(topic)
  end
end

#timings ⇒ Object 



946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
 
# File 'app/controllers/topics_controller.rb', line 946

def timings
  allowed_params = topic_params

  topic_id = allowed_params[:topic_id].to_i
  topic_time = allowed_params[:topic_time].to_i
  timings = allowed_params[:timings].to_h || {}

  # ensure we capture current user for the block
  user = current_user

  hijack do
    PostTiming.process_timings(
      user,
      topic_id,
      topic_time,
      timings.map { |post_number, t| [post_number.to_i, t.to_i] },
      mobile: view_context.mobile_view?,
    )
    render body: nil
  end
end

#toggle_archive_message(archive) ⇒ Object 



610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
 
# File 'app/controllers/topics_controller.rb', line 610

def toggle_archive_message(archive)
  topic = Topic.find(params[:id].to_i)

  group_id = nil

  group_ids = current_user.groups.pluck(:id)
  if group_ids.present?
    allowed_groups =
      topic.allowed_groups.where("topic_allowed_groups.group_id IN (?)", group_ids).pluck(:id)

    allowed_groups.each do |id|
      if archive
        GroupArchivedMessage.archive!(id, topic, acting_user_id: current_user.id)

        group_id = id
      else
        GroupArchivedMessage.move_to_inbox!(id, topic, acting_user_id: current_user.id)
      end
    end
  end

  if topic.allowed_users.include?(current_user)
    if archive
      UserArchivedMessage.archive!(current_user.id, topic)
    else
      UserArchivedMessage.move_to_inbox!(current_user.id, topic)
    end
  end

  if group_id
    name = Group.find_by(id: group_id).try(:name)
    render_json_dump(group_name: name)
  else
    render body: nil
  end
end

#unmute ⇒ Object 



528
529
530
 
# File 'app/controllers/topics_controller.rb', line 528

def unmute
  toggle_mute
end

#update ⇒ Object 



356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
 
# File 'app/controllers/topics_controller.rb', line 356

def update
  topic = Topic.find_by(id: params[:topic_id])
  guardian.ensure_can_edit!(topic)

  if params[:category_id] && (params[:category_id].to_i != topic.category_id.to_i)
    if topic.shared_draft
      topic.shared_draft.update(category_id: params[:category_id])
      params.delete(:category_id)
    else
      category = Category.find_by(id: params[:category_id])

      if category || (params[:category_id].to_i == 0)
        begin
          guardian.ensure_can_move_topic_to_category!(category)
        rescue Discourse::InvalidAccess
          return(
            render_json_error I18n.t("category.errors.move_topic_to_category_disallowed"),
                              status: :forbidden
          )
        end
      else
        return render_json_error(I18n.t("category.errors.not_found"))
      end

      if category &&
           topic_tags = (params[:tags] || topic.tags.pluck(:name)).reject { |c| c.empty? }
        if topic_tags.present?
          allowed_tags =
            DiscourseTagging.filter_allowed_tags(guardian, category: category).map(&:name)

          invalid_tags = topic_tags - allowed_tags

          # Do not raise an error on a topic's hidden tags when not modifying tags
          if params[:tags].blank?
            invalid_tags.each do |tag_name|
              if DiscourseTagging.hidden_tag_names.include?(tag_name)
                invalid_tags.delete(tag_name)
              end
            end
          end

          invalid_tags = Tag.where_name(invalid_tags).pluck(:name)

          if !invalid_tags.empty?
            if (invalid_tags & DiscourseTagging.hidden_tag_names).present?
              return render_json_error(I18n.t("category.errors.disallowed_tags_generic"))
            else
              return(
                render_json_error(
                  I18n.t("category.errors.disallowed_topic_tags", tags: invalid_tags.join(", ")),
                )
              )
            end
          end
        end
      end
    end
  end

  changes = {}

  PostRevisor.tracked_topic_fields.each_key { |f| changes[f] = params[f] if params.has_key?(f) }

  changes.delete(:title) if topic.title == changes[:title]
  changes.delete(:category_id) if topic.category_id.to_i == changes[:category_id].to_i

  if Tag.include_tags?
    topic_tags = topic.tags.map(&:name).sort
    changes.delete(:tags) if changes[:tags]&.sort == topic_tags
  end

  success = true

  if changes.length > 0
    bypass_bump = should_bypass_bump?(changes)

    first_post = topic.ordered_posts.first
    success =
      PostRevisor.new(first_post, topic).revise!(
        current_user,
        changes,
        validate_post: false,
        bypass_bump: bypass_bump,
        keep_existing_draft: params[:keep_existing_draft].to_s == "true",
      )

    topic.errors.add(:base, :unable_to_update) if !success && topic.errors.blank?
  end

  # this is used to return the title to the client as it may have been changed by "TextCleaner"
  success ? render_serialized(topic, BasicTopicSerializer) : render_json_error(topic)
end

#update_shared_draft ⇒ Object 



343
344
345
346
347
348
349
350
351
352
353
354
 
# File 'app/controllers/topics_controller.rb', line 343

def update_shared_draft
  topic = Topic.find_by(id: params[:id])
  guardian.ensure_can_edit!(topic)

  category = Category.find_by(id: params[:category_id].to_i)
  guardian.ensure_can_publish_topic!(topic, category)

  row_count = SharedDraft.where(topic_id: topic.id).update_all(category_id: category.id)
  SharedDraft.create(topic_id: topic.id, category_id: category.id) if row_count == 0

  render json: success_json
end

#update_tags ⇒ Object 



449
450
451
452
453
454
455
456
457
458
459
460
461
462
 
# File 'app/controllers/topics_controller.rb', line 449

def update_tags
  params.require(:tags)
  topic = Topic.find_by(id: params[:topic_id])
  guardian.ensure_can_edit_tags!(topic)

  success =
    PostRevisor.new(topic.first_post, topic).revise!(
      current_user,
      { tags: params[:tags] },
      validate_post: false,
    )

  success ? render_serialized(topic, BasicTopicSerializer) : render_json_error(topic)
end

#wordpress ⇒ Object 



204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
 
# File 'app/controllers/topics_controller.rb', line 204

def wordpress
  params.require(:best)
  params.require(:topic_id)
  params.permit(
    :min_trust_level,
    :min_score,
    :min_replies,
    :bypass_trust_level_score,
    :only_moderator_liked,
  )

  begin
    opts = {
      best: params[:best].to_i,
      min_trust_level: params[:min_trust_level] ? params[:min_trust_level].to_i : 1,
      min_score: params[:min_score].to_i,
      min_replies: params[:min_replies].to_i,
      bypass_trust_level_score: params[:bypass_trust_level_score].to_i, # safe cause 0 means ignore
      only_moderator_liked: params[:only_moderator_liked].to_s == "true",
      exclude_hidden: true,
    }
  rescue NoMethodError
    raise Discourse::InvalidParameters
  end

  @topic_view = TopicView.new(params[:topic_id], current_user, opts)
  discourse_expires_in 1.minute

  wordpress_serializer =
    TopicViewWordpressSerializer.new(@topic_view, scope: guardian, root: false)
  render_json_dump(wordpress_serializer)
end