app/controllers/follower_accounts_controller.rb

   1 # frozen_string_literal: true
   2
   3 class FollowerAccountsController < ApplicationController
   4   include AccountControllerConcern
   5   include SignatureVerification
   6
   7   before_action :require_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
   8   before_action :set_cache_headers
   9
  10   skip_around_action :set_locale, if: -> { request.format == :json }
  11   skip_before_action :require_functional!
  12
  13   def index
  14     respond_to do |format|
  15       format.html do
  16         expires_in 0, public: true unless user_signed_in?
  17
  18         next if @account.user_hides_network?
  19
  20         follows
  21       end
  22
  23       format.json do
  24         raise Mastodon::NotPermittedError if page_requested? && @account.user_hides_network?
  25
  26         expires_in(page_requested? ? 0 : 3.minutes, public: public_fetch_mode?)
  27
  28         render json: collection_presenter,
  29                serializer: ActivityPub::CollectionSerializer,
  30                adapter: ActivityPub::Adapter,
  31                content_type: 'application/activity+json',
  32                fields: restrict_fields_to
  33       end
  34     end
  35   end
  36
  37   private
  38
  39   def follows
  40     return @follows if defined?(@follows)
  41
  42     scope = Follow.where(target_account: @account)
  43     scope = scope.where.not(account_id: current_account.excluded_from_timeline_account_ids) if user_signed_in?
  44     @follows = scope.recent.page(params[:page]).per(FOLLOW_PER_PAGE).preload(:account)
  45   end
  46
  47   def page_requested?
  48     params[:page].present?
  49   end
  50
  51   def page_url(page)
  52     account_followers_url(@account, page: page) unless page.nil?
  53   end
  54
  55   def collection_presenter
  56     if page_requested?
  57       ActivityPub::CollectionPresenter.new(
  58         id: account_followers_url(@account, page: params.fetch(:page, 1)),
  59         type: :ordered,
  60         size: @account.followers_count,
  61         items: follows.map { |f| ActivityPub::TagManager.instance.uri_for(f.account) },
  62         part_of: account_followers_url(@account),
  63         next: page_url(follows.next_page),
  64         prev: page_url(follows.prev_page)
  65       )
  66     else
  67       ActivityPub::CollectionPresenter.new(
  68         id: account_followers_url(@account),
  69         type: :ordered,
  70         size: @account.followers_count,
  71         first: page_url(1)
  72       )
  73     end
  74   end
  75
  76   def restrict_fields_to
  77     if page_requested? || !@account.user_hides_network?
  78       # Return all fields
  79     else
  80       %i(id type totalItems)
  81     end
  82   end
  83 end