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# frozen_string_literal: true
class TagsController < ApplicationController
include SignatureVerification
PAGE_SIZE = 20
PAGE_SIZE_MAX = 200
layout 'public'
before_action :require_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_body_classes
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
end
format.rss do
expires_in 0, public: true
render xml: RSS::TagSerializer.render(@tag, @statuses)
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_body_classes
@body_classes = 'with-modals'
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