Class: TopicsController

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

Constant Summary

Constants inherited from ApplicationController

ApplicationController::CHALLENGE_KEY, ApplicationController::HONEYPOT_KEY, 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, #login_method, #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 ThemeResolver

resolve_theme_id

Methods included from ReadOnlyMixin

#add_readonly_header, #allowed_in_staff_writes_only_mode?, #block_if_readonly_mode, #check_readonly_mode, #get_or_check_readonly_mode, #get_or_check_staff_writes_only_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_messageObject



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# File 'app/controllers/topics_controller.rb', line 627

def archive_message
  toggle_archive_message(true)
end

#bookmarkObject



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# File 'app/controllers/topics_controller.rb', line 672

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

#bulkObject

Raises:

  • (ActionController::ParameterMissing)


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# File 'app/controllers/topics_controller.rb', line 1028

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,
        :message,
        *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])
  hijack(info: "topics bulk action #{operation[:type]}") do
    changed_topic_ids = operator.perform!
    render_json_dump topic_ids: changed_topic_ids
  end
end

#change_post_ownersObject



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# File 'app/controllers/topics_controller.rb', line 923

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_timestampsObject



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# File 'app/controllers/topics_controller.rb', line 943

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

  guardian.

  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_pinObject



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# File 'app/controllers/topics_controller.rb', line 967

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_topicObject



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# File 'app/controllers/topics_controller.rb', line 1174

def convert_topic
  params.require(:id)
  params.require(:type)

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

  topic =
    if params[:type] == "public"
      topic.convert_to_public_topic(current_user, category_id: params[:category_id])
    else
      topic.convert_to_private_message(current_user)
    end

  topic.valid? ? render_topic_changes(topic) : render_json_error(topic)
end

#destroyObject



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# File 'app/controllers/topics_controller.rb', line 683

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_timingsObject



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# File 'app/controllers/topics_controller.rb', line 326

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

#excerptObject



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# File 'app/controllers/topics_controller.rb', line 719

def excerpt
  render body: nil
end

#excerptsObject



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# File 'app/controllers/topics_controller.rb', line 284

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_statsObject



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# File 'app/controllers/topics_controller.rb', line 479

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

#feedObject



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# File 'app/controllers/topics_controller.rb', line 1003

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_slugObject



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# 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

#inviteObject



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# File 'app/controllers/topics_controller.rb', line 784

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_groupObject



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# File 'app/controllers/topics_controller.rb', line 751

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)
    should_notify =
      if params[:should_notify].blank?
        true
      else
        params[:should_notify].to_s == "true"
      end
    topic.invite_group(current_user, group, should_notify: should_notify)
    render_json_dump BasicGroupSerializer.new(group, scope: guardian, root: "group")
  else
    render json: failed_json, status: 422
  end
end

#make_bannerObject



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

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_topicObject



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# File 'app/controllers/topics_controller.rb', line 854

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)
  params.permit(:freeze_original)

  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"
  args[:freeze_original] = params[:freeze_original] == "true"

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

  acting_user = current_user
  hijack(info: "merging topic #{topic_id.inspect} into #{destination_topic_id.inspect}") do
    destination_topic = topic.move_posts(acting_user, topic.posts.pluck(:id), args)
    render_topic_changes(destination_topic)
  end
end

#move_postsObject



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# File 'app/controllers/topics_controller.rb', line 888

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)
  params.permit(:freeze_original)

  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_inboxObject



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# File 'app/controllers/topics_controller.rb', line 631

def move_to_inbox
  toggle_archive_message(false)
end

#muteObject



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# File 'app/controllers/topics_controller.rb', line 549

def mute
  toggle_mute
end

#post_idsObject



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# File 'app/controllers/topics_controller.rb', line 241

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

#postsObject



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# File 'app/controllers/topics_controller.rb', line 257

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_newObject



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# File 'app/controllers/topics_controller.rb', line 1064

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

#publishObject



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# File 'app/controllers/topics_controller.rb', line 194

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_pinObject



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# File 'app/controllers/topics_controller.rb', line 974

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

#recoverObject



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# File 'app/controllers/topics_controller.rb', line 709

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_groupObject



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# File 'app/controllers/topics_controller.rb', line 739

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_userObject



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# File 'app/controllers/topics_controller.rb', line 723

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_bannerObject



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# File 'app/controllers/topics_controller.rb', line 612

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_bookmarksObject



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# File 'app/controllers/topics_controller.rb', line 621

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_dateObject



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# File 'app/controllers/topics_controller.rb', line 1191

def reset_bump_date
  params.require(:id)
  params.permit(:post_id)

  guardian.ensure_can_update_bumped_at!

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

  topic.reset_bumped_at(params[:post_id])
  render body: nil
end

#reset_newObject



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# File 'app/controllers/topics_controller.rb', line 1090

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_notificationsObject



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# File 'app/controllers/topics_controller.rb', line 840

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_modeObject



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# File 'app/controllers/topics_controller.rb', line 1204

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)

  StaffActionLogger.new(current_user).log_topic_slow_mode(
    topic,
    enabled:,
    seconds: params[:seconds],
    until: time,
  )

  head :ok
end

#showObject



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# File 'app/controllers/topics_controller.rb', line 53

def show
  if params[:id].is_a?(Array) || params[:id].is_a?(ActionController::Parameters)
    raise Discourse::InvalidParameters.new("Show only accepts a single ID")
  end

  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: serialize_data(group, BasicGroupSerializer, root: false),
              )
      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_idObject



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# 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

#statusObject



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# File 'app/controllers/topics_controller.rb', line 498

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

  status_opts = { until: params[:until].presence }

  if status == "visible"
    status_opts[:visibility_reason_id] = (
      if enabled
        Topic.visibility_reasons[:manually_relisted]
      else
        Topic.visibility_reasons[:manually_unlisted]
      end
    )
  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

  @topic.update_status(status, enabled, current_user, status_opts)

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

#timerObject



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# File 'app/controllers/topics_controller.rb', line 557

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

#timingsObject



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# File 'app/controllers/topics_controller.rb', line 981

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



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# File 'app/controllers/topics_controller.rb', line 635

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

#unmuteObject



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# File 'app/controllers/topics_controller.rb', line 553

def unmute
  toggle_mute
end

#updateObject



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# File 'app/controllers/topics_controller.rb', line 360

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

  guardian.ensure_can_edit!(topic)

  original_title = params[:original_title]
  if original_title.present? && original_title != topic.title
    return render_json_error(I18n.t("edit_conflict"), status: 409)
  end

  original_tags = params[:original_tags]
  if original_tags.present? && original_tags.sort != topic.tags.pluck(:name).sort
    return render_json_error(I18n.t("edit_conflict"), status: 409)
  end

  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_draftObject



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# File 'app/controllers/topics_controller.rb', line 347

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_tagsObject



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# File 'app/controllers/topics_controller.rb', line 464

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

#wordpressObject



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# File 'app/controllers/topics_controller.rb', line 208

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