require_dependency 'topic_view' require_dependency 'promotion' require_dependency 'url_helper' require_dependency 'topics_bulk_action' require_dependency 'discourse_event' require_dependency 'rate_limiter' class TopicsController < ApplicationController before_filter :ensure_logged_in, only: [:timings, :destroy_timings, :update, :star, :destroy, :recover, :status, :invite, :mute, :unmute, :set_notifications, :move_posts, :merge_topic, :clear_pin, :re_pin, :autoclose, :bulk, :reset_new, :change_post_owners, :change_timestamps, :archive_message, :move_to_inbox, :convert_topic, :bookmark] before_filter :consider_user_for_promotion, only: :show skip_before_filter :check_xhr, only: [:show, :unsubscribe, :feed] def id_for_slug topic = Topic.find_by(slug: params[:slug].downcase) guardian.ensure_can_see!(topic) raise Discourse::NotFound unless topic render json: {slug: topic.slug, topic_id: topic.id, url: topic.url} end def show if request.referer flash["referer"] ||= request.referer[0..255] end # 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] = params[:page].to_i rescue 1 opts = params.slice(:username_filters, :filter, :page, :post_number, :show_deleted) username_filters = opts[:username_filters] opts[:slow_platform] = true if slow_platform? opts[:print] = true if params[:print].present? 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] =~ /^\d+[^\d\\]+$/ topic = Topic.find_by(slug: params[:id].downcase) return redirect_to_correct_topic(topic, opts[:post_number]) if topic && topic.visible end if opts[:print] raise Discourse::InvalidAccess unless SiteSetting.max_prints_per_hour_per_user > 0 begin RateLimiter.new(current_user, "print-topic-per-hour", SiteSetting.max_prints_per_hour_per_user, 1.hour).performed! unless @guardian.is_admin? rescue RateLimiter::LimitExceeded 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 if params[:id] topic = Topic.find_by(slug: params[:id].downcase) return redirect_to_correct_topic(topic, opts[:post_number]) if topic && topic.visible end raise Discourse::NotFound 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 !@topic_view.topic.visible && @topic_view.topic.slug != params[:slug] && !request.format.json? raise Discourse::NotFound end 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 unless @topic_view.topic.visible response.headers['X-Robots-Tag'] = 'noindex' end canonical_url UrlHelper.absolute_without_cdn(@topic_view.canonical_path) perform_show_response rescue Discourse::InvalidAccess => ex if current_user # If the user can't see the topic, clean up notifications for it. Notification.remove_for(current_user.id, params[:topic_id]) end if ex.obj && Topic === ex.obj && guardian.can_see_topic_if_not_deleted?(ex.obj) rescue_discourse_actions(:not_found, 410) return end raise ex end def unsubscribe if current_user.blank? cookies[:destination_url] = request.fullpath return redirect_to "/login-preferences" end @topic_view = TopicView.new(params[:topic_id], current_user) if slugs_do_not_match || (!request.format.json? && params[:slug].blank?) return redirect_to @topic_view.topic.unsubscribe_url, status: 301 end tu = TopicUser.find_by(user_id: current_user.id, topic_id: params[:topic_id]) if tu && tu.notification_level > TopicUser.notification_levels[:regular] tu.notification_level = TopicUser.notification_levels[:regular] tu.save! else TopicUser.change(current_user.id, params[:topic_id].to_i, notification_level: TopicUser.notification_levels[:muted]) end perform_show_response end 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) 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" } @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 def posts params.require(:topic_id) params.permit(:post_ids) @topic_view = TopicView.new(params[:topic_id], current_user, post_ids: params[:post_ids]) render_json_dump(TopicViewPostsSerializer.new(@topic_view, scope: guardian, root: false, include_raw: !!params[:include_raw])) end def excerpts params.require(:topic_id) params.require(:post_ids) post_ids = params[:post_ids].map(&:to_i) unless Array === post_ids render_json_error("Expecting post_ids to contain a list of posts ids") return end 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) .map do |post_id, cooked, username| { post_id: post_id, username: username, excerpt: PrettyText.excerpt(cooked, 800, keep_emoji_images: true) } end render json: @posts.to_json end def destroy_timings PostTiming.destroy_for(current_user.id, [params[:topic_id].to_i]) render nothing: true end def update topic = Topic.find_by(id: params[:topic_id]) guardian.ensure_can_edit!(topic) changes = {} PostRevisor.tracked_topic_fields.each_key do |f| changes[f] = params[f] if params.has_key?(f) end changes.delete(:title) if topic.title == changes[:title] changes.delete(:category_id) if topic.category_id.to_i == changes[:category_id].to_i success = true if changes.length > 0 first_post = topic.ordered_posts.first success = PostRevisor.new(first_post, topic).revise!(current_user, changes, validate_post: false) 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 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 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 = Topic.find_by(id: topic_id) guardian.ensure_can_moderate!(@topic) @topic.update_status(status, enabled, current_user, until: params[:until]) render nothing: true end def mute toggle_mute end def unmute toggle_mute end def autoclose params.permit(:auto_close_time, :timezone_offset) params.require(:auto_close_based_on_last_post) topic = Topic.find_by(id: params[:topic_id].to_i) guardian.ensure_can_moderate!(topic) topic.auto_close_based_on_last_post = params[:auto_close_based_on_last_post] topic.set_auto_close(params[:auto_close_time], {by_user: current_user, timezone_offset: params[:timezone_offset] ? params[:timezone_offset].to_i : nil}) if topic.save render json: success_json.merge!({ auto_close_at: topic.auto_close_at, auto_close_hours: topic.auto_close_hours }) else render_json_error(topic) end end def make_banner topic = Topic.find_by(id: params[:topic_id].to_i) guardian.ensure_can_moderate!(topic) topic.make_banner!(current_user) render nothing: true end def remove_banner topic = Topic.find_by(id: params[:topic_id].to_i) guardian.ensure_can_moderate!(topic) topic.remove_banner!(current_user) render nothing: true end def remove_bookmarks topic = Topic.find(params[:topic_id].to_i) PostAction.joins(:post) .where(user_id: current_user.id) .where('topic_id = ?', topic.id).each do |pa| PostAction.remove_act(current_user, pa.post, PostActionType.types[:bookmark]) end render nothing: true end def archive_message toggle_archive_message(true) end def move_to_inbox toggle_archive_message(false) end 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.id) group_id = id else GroupArchivedMessage.move_to_inbox!(id, topic.id) end end end if topic.allowed_users.include?(current_user) if archive UserArchivedMessage.archive!(current_user.id, topic.id) else UserArchivedMessage.move_to_inbox!(current_user.id, topic.id) end end if group_id name = Group.find_by(id: group_id).try(:name) render_json_dump(group_name: name) else render nothing: true end end def bookmark topic = Topic.find(params[:topic_id].to_i) first_post = topic.ordered_posts.first PostAction.act(current_user, first_post, PostActionType.types[:bookmark]) render nothing: true end def destroy topic = Topic.find_by(id: params[:id]) guardian.ensure_can_delete!(topic) first_post = topic.ordered_posts.first PostDestroyer.new(current_user, first_post, { context: params[:context] }).destroy render nothing: true end 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).recover render nothing: true end def excerpt render nothing: true end def remove_allowed_user params.require(:username) topic = Topic.find_by(id: params[:topic_id]) guardian.ensure_can_remove_allowed_users!(topic) if topic.remove_allowed_user(current_user, params[:username]) render json: success_json else render json: failed_json, status: 422 end end 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 def invite_group group = Group.find_by(name: params[:group]) raise Discourse::NotFound unless group topic = Topic.find_by(id: params[:topic_id]) if topic.private_message? guardian.ensure_can_send_private_message!(group) 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 def invite username_or_email = params[:user] ? fetch_username : fetch_email topic = Topic.find_by(id: params[:topic_id]) group_ids = Group.lookup_group_ids(params) guardian.ensure_can_invite_to!(topic,group_ids) begin if topic.invite(current_user, username_or_email, group_ids, params[:custom_message]) user = User.find_by_username_or_email(username_or_email) if user render_json_dump BasicUserSerializer.new(user, scope: guardian, root: 'user') else render json: success_json end else render json: failed_json, status: 422 end rescue => e render json: {errors: [e.message]}, status: 422 end end def set_notifications topic = Topic.find(params[:topic_id].to_i) TopicUser.change(current_user, topic.id, notification_level: params[:notification_level].to_i) render json: success_json end def merge_topic params.require(:destination_topic_id) topic = Topic.find_by(id: params[:topic_id]) guardian.ensure_can_move_posts!(topic) dest_topic = topic.move_posts(current_user, topic.posts.pluck(:id), destination_topic_id: params[:destination_topic_id].to_i) render_topic_changes(dest_topic) end def move_posts params.require(:post_ids) params.require(:topic_id) params.permit(:category_id) topic = Topic.find_by(id: params[:topic_id]) guardian.ensure_can_move_posts!(topic) dest_topic = move_posts_to_destination(topic) render_topic_changes(dest_topic) rescue ActiveRecord::RecordInvalid => ex render_json_error(ex) end 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 def change_timestamps params.require(:topic_id) params.require(:timestamp) guardian.ensure_can_change_post_timestamps! begin PostTimestampChanger.new( topic_id: params[:topic_id].to_i, timestamp: params[:timestamp].to_i ).change! render json: success_json rescue ActiveRecord::RecordInvalid render json: failed_json, status: 422 end end 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 nothing: true end 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 nothing: true end def timings PostTiming.process_timings( current_user, params[:topic_id].to_i, params[:topic_time].to_i, (params[:timings] || []).map{|post_number, t| [post_number.to_i, t.to_i]}, {mobile: view_context.mobile_view?} ) render nothing: true end def feed @topic_view = TopicView.new(params[:topic_id]) discourse_expires_in 1.minute render 'topics/show', formats: [:rss] end def bulk if params[:topic_ids].present? topic_ids = params[:topic_ids].map {|t| t.to_i} elsif params[:filter] == 'unread' tq = TopicQuery.new(current_user) topics = TopicQuery.unread_filter(tq.joined_topic_user).listable_topics topics = topics.where('category_id = ?', params[:category_id]) if params[:category_id] topic_ids = topics.pluck(:id) else raise ActionController::ParameterMissing.new(:topic_ids) end operation = params.require(:operation).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 def reset_new current_user.user_stat.update_column(:new_since, Time.now) render nothing: true end 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) 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 private def toggle_mute @topic = Topic.find_by(id: params[:topic_id].to_i) guardian.ensure_can_see!(@topic) @topic.toggle_mute(current_user) render nothing: true end def consider_user_for_promotion Promotion.new(current_user).review if current_user.present? end def slugs_do_not_match params[:slug] && @topic_view.topic.slug != params[:slug] end def redirect_to_correct_topic(topic, post_number=nil) url = topic.relative_url url << "/#{post_number}" if post_number.to_i > 0 url << ".json" if request.format.json? page = params[:page] url << "?page=#{page}" if page != 0 redirect_to url, status: 301 end def track_visit_to_topic topic_id = @topic_view.topic.id ip = request.remote_ip user_id = (current_user.id if current_user) track_visit = should_track_visit_to_topic? Scheduler::Defer.later "Track Link" do IncomingLink.add( referer: request.referer || flash[:referer], host: request.host, current_user: current_user, topic_id: @topic_view.topic.id, post_number: params[:post_number], username: request['u'], ip_address: request.remote_ip ) end unless request.format.json? Scheduler::Defer.later "Track Visit" do TopicViewItem.add(topic_id, ip, user_id) TopicUser.track_visit!(topic_id, user_id) if track_visit end end def should_track_visit_to_topic? !!((!request.format.json? || params[:track_visit]) && current_user) end def perform_show_response if request.head? head :ok return end topic_view_serializer = TopicViewSerializer.new(@topic_view, scope: guardian, root: false, include_raw: !!params[:include_raw]) respond_to do |format| format.html do @description_meta = @topic_view.topic.excerpt store_preloaded("topic_#{@topic_view.topic.id}", MultiJson.dump(topic_view_serializer)) render :show end format.json do render_json_dump(topic_view_serializer) end end end def render_topic_changes(dest_topic) if dest_topic.present? render json: {success: true, url: dest_topic.relative_url} else render json: {success: false} end end def move_posts_to_destination(topic) args = {} args[:title] = params[:title] if params[:title].present? args[:destination_topic_id] = params[:destination_topic_id].to_i if params[:destination_topic_id].present? args[:category_id] = params[:category_id].to_i if params[:category_id].present? topic.move_posts(current_user, post_ids_including_replies, args) end def check_for_status_presence(key, attr) invalid_param(key) unless %w(pinned pinned_globally visible closed archived).include?(attr) end def invalid_param(key) raise Discourse::InvalidParameters.new(key.to_sym) end def fetch_username params.require(:user) params[:user] end def fetch_email params.require(:email) params[:email] end end