95 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Ruby
		
	
	
	
			
		
		
	
	
			95 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Ruby
		
	
	
	
| # frozen_string_literal: true
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| 
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| class ActivityPub::RepliesController < ActivityPub::BaseController
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|   include SignatureVerification
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|   include Authorization
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|   include AccountOwnedConcern
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| 
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|   DESCENDANTS_LIMIT = 60
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| 
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|   before_action :require_account_signature!, if: :authorized_fetch_mode?
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|   before_action :set_status
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|   before_action :set_cache_headers
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|   before_action :set_replies
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| 
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|   def index
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|     expires_in 0, public: public_fetch_mode?
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|     render json: replies_collection_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json', skip_activities: true
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|   end
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| 
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|   private
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| 
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|   def pundit_user
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|     signed_request_account
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|   end
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| 
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|   def set_status
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|     @status = @account.statuses.find(params[:status_id])
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|     authorize @status, :show?
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|   rescue Mastodon::NotPermittedError
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|     not_found
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|   end
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| 
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|   def set_replies
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|     @replies = only_other_accounts? ? Status.where.not(account_id: @account.id).joins(:account).merge(Account.without_suspended) : @account.statuses
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|     @replies = @replies.where(in_reply_to_id: @status.id, visibility: [:public, :unlisted])
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|     @replies = @replies.paginate_by_min_id(DESCENDANTS_LIMIT, params[:min_id])
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|   end
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| 
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|   def replies_collection_presenter
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|     page = ActivityPub::CollectionPresenter.new(
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|       id: account_status_replies_url(@account, @status, page_params),
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|       type: :unordered,
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|       part_of: account_status_replies_url(@account, @status),
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|       next: next_page,
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|       items: @replies.map { |status| status.local? ? status : status.uri }
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|     )
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| 
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|     return page if page_requested?
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| 
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|     ActivityPub::CollectionPresenter.new(
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|       id: account_status_replies_url(@account, @status),
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|       type: :unordered,
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|       first: page
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|     )
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|   end
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| 
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|   def page_requested?
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|     truthy_param?(:page)
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|   end
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| 
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|   def only_other_accounts?
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|     truthy_param?(:only_other_accounts)
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|   end
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| 
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|   def next_page
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|     if only_other_accounts?
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|       # Only consider remote accounts
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|       return nil if @replies.size < DESCENDANTS_LIMIT
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| 
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|       account_status_replies_url(
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|         @account,
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|         @status,
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|         page: true,
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|         min_id: @replies&.last&.id,
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|         only_other_accounts: true
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|       )
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|     else
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|       # For now, we're serving only self-replies, but next page might be other accounts
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|       next_only_other_accounts = @replies&.last&.account_id != @account.id || @replies.size < DESCENDANTS_LIMIT
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| 
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|       account_status_replies_url(
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|         @account,
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|         @status,
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|         page: true,
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|         min_id: next_only_other_accounts ? nil : @replies&.last&.id,
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|         only_other_accounts: next_only_other_accounts
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|       )
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|     end
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|   end
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| 
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|   def page_params
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|     params_slice(:only_other_accounts, :min_id).merge(page: true)
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|   end
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| end
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