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- # frozen_string_literal: true
- class TagsController < ApplicationController
- include SignatureVerification
- include WebAppControllerConcern
- PAGE_SIZE = 20
- PAGE_SIZE_MAX = 200
- before_action :require_account_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
- before_action :authenticate_user!, if: :whitelist_mode?
- before_action :set_local
- before_action :set_tag
- before_action :set_statuses
- before_action :set_instance_presenter
- skip_before_action :require_functional!, unless: :whitelist_mode?
- def show
- respond_to do |format|
- format.html do
- expires_in 0, public: true unless user_signed_in?
- end
- format.rss do
- expires_in 0, public: true
- end
- format.json do
- expires_in 3.minutes, public: public_fetch_mode?
- render json: collection_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json'
- end
- end
- end
- private
- def set_tag
- @tag = Tag.usable.find_normalized!(params[:id])
- end
- def set_local
- @local = truthy_param?(:local)
- end
- def set_statuses
- case request.format&.to_sym
- when :json
- @statuses = cache_collection(TagFeed.new(@tag, current_account, local: @local).get(PAGE_SIZE, params[:max_id], params[:since_id], params[:min_id]), Status)
- when :rss
- @statuses = cache_collection(TagFeed.new(@tag, nil, local: @local).get(limit_param), Status)
- end
- end
- def set_instance_presenter
- @instance_presenter = InstancePresenter.new
- end
- def limit_param
- params[:limit].present? ? [params[:limit].to_i, PAGE_SIZE_MAX].min : PAGE_SIZE
- end
- def collection_presenter
- ActivityPub::CollectionPresenter.new(
- id: tag_url(@tag),
- type: :ordered,
- size: @tag.statuses.count,
- items: @statuses.map { |s| ActivityPub::TagManager.instance.uri_for(s) }
- )
- end
- end
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