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- # frozen_string_literal: true
- class TagsController < ApplicationController
- include SignatureVerification
- include WebAppControllerConcern
- PAGE_SIZE = 20
- PAGE_SIZE_MAX = 200
- vary_by -> { public_fetch_mode? ? 'Accept, Accept-Language, Cookie' : 'Accept, Accept-Language, Cookie, Signature' }
- before_action :require_account_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
- before_action :authenticate_user!, if: :limited_federation_mode?
- before_action :set_local
- before_action :set_tag
- before_action :set_statuses, if: -> { request.format == :rss }
- skip_before_action :require_functional!, unless: :limited_federation_mode?
- def show
- respond_to do |format|
- format.html do
- expires_in(15.seconds, public: true, stale_while_revalidate: 30.seconds, stale_if_error: 1.hour) 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
- @statuses = cache_collection(TagFeed.new(@tag, nil, local: @local).get(limit_param), Status)
- 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
- )
- end
- end
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