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-rw-r--r--app/services/fetch_atom_service.rb93
1 files changed, 0 insertions, 93 deletions
diff --git a/app/services/fetch_atom_service.rb b/app/services/fetch_atom_service.rb
deleted file mode 100644
index d6508a988..000000000
--- a/app/services/fetch_atom_service.rb
+++ /dev/null
@@ -1,93 +0,0 @@
-# frozen_string_literal: true
-
-class FetchAtomService < BaseService
-  include JsonLdHelper
-
-  def call(url)
-    return if url.blank?
-
-    result = process(url)
-
-    # retry without ActivityPub
-    result ||= process(url) if @unsupported_activity
-
-    result
-  rescue OpenSSL::SSL::SSLError => e
-    Rails.logger.debug "SSL error: #{e}"
-    nil
-  rescue HTTP::ConnectionError => e
-    Rails.logger.debug "HTTP ConnectionError: #{e}"
-    nil
-  end
-
-  private
-
-  def process(url, terminal = false)
-    @url = url
-    perform_request { |response| process_response(response, terminal) }
-  end
-
-  def perform_request(&block)
-    accept = 'text/html'
-    accept = 'application/activity+json, application/ld+json; profile="https://www.w3.org/ns/activitystreams", application/atom+xml, ' + accept unless @unsupported_activity
-
-    Request.new(:get, @url).add_headers('Accept' => accept).perform(&block)
-  end
-
-  def process_response(response, terminal = false)
-    return nil if response.code != 200
-
-    if response.mime_type == 'application/atom+xml'
-      [@url, { prefetched_body: response.body_with_limit }, :ostatus]
-    elsif ['application/activity+json', 'application/ld+json'].include?(response.mime_type)
-      body = response.body_with_limit
-      json = body_to_json(body)
-      if supported_context?(json) && equals_or_includes_any?(json['type'], ActivityPub::FetchRemoteAccountService::SUPPORTED_TYPES) && json['inbox'].present?
-        [json['id'], { prefetched_body: body, id: true }, :activitypub]
-      elsif supported_context?(json) && expected_type?(json)
-        [json['id'], { prefetched_body: body, id: true }, :activitypub]
-      else
-        @unsupported_activity = true
-        nil
-      end
-    elsif !terminal
-      link_header = response['Link'] && parse_link_header(response)
-
-      if link_header&.find_link(%w(rel alternate))
-        process_link_headers(link_header)
-      elsif response.mime_type == 'text/html'
-        process_html(response)
-      end
-    end
-  end
-
-  def expected_type?(json)
-    equals_or_includes_any?(json['type'], ActivityPub::Activity::Create::SUPPORTED_TYPES + ActivityPub::Activity::Create::CONVERTED_TYPES)
-  end
-
-  def process_html(response)
-    page = Nokogiri::HTML(response.body_with_limit)
-
-    json_link = page.xpath('//link[@rel="alternate"]').find { |link| ['application/activity+json', 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"'].include?(link['type']) }
-    atom_link = page.xpath('//link[@rel="alternate"]').find { |link| link['type'] == 'application/atom+xml' }
-
-    result ||= process(json_link['href'], terminal: true) unless json_link.nil? || @unsupported_activity
-    result ||= process(atom_link['href'], terminal: true) unless atom_link.nil?
-
-    result
-  end
-
-  def process_link_headers(link_header)
-    json_link = link_header.find_link(%w(rel alternate), %w(type application/activity+json)) || link_header.find_link(%w(rel alternate), ['type', 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"'])
-    atom_link = link_header.find_link(%w(rel alternate), %w(type application/atom+xml))
-
-    result ||= process(json_link.href, terminal: true) unless json_link.nil? || @unsupported_activity
-    result ||= process(atom_link.href, terminal: true) unless atom_link.nil?
-
-    result
-  end
-
-  def parse_link_header(response)
-    LinkHeader.parse(response['Link'].is_a?(Array) ? response['Link'].first : response['Link'])
-  end
-end