From 23aeef52cc4540b4514e9f3b935b21f0530a3746 Mon Sep 17 00:00:00 2001
From: Eugen Rochko <eugen@zeonfederated.com>
Date: Sat, 6 Jul 2019 23:26:16 +0200
Subject: Remove Salmon and PubSubHubbub (#11205)

* Remove Salmon and PubSubHubbub endpoints

* Add error when trying to follow OStatus accounts

* Fix new accounts not being created in ResolveAccountService
---
 app/services/process_interaction_service.rb | 151 ----------------------------
 1 file changed, 151 deletions(-)
 delete mode 100644 app/services/process_interaction_service.rb

(limited to 'app/services/process_interaction_service.rb')

diff --git a/app/services/process_interaction_service.rb b/app/services/process_interaction_service.rb
deleted file mode 100644
index 1fca3832b..000000000
--- a/app/services/process_interaction_service.rb
+++ /dev/null
@@ -1,151 +0,0 @@
-# frozen_string_literal: true
-
-class ProcessInteractionService < BaseService
-  include AuthorExtractor
-  include Authorization
-
-  # Record locally the remote interaction with our user
-  # @param [String] envelope Salmon envelope
-  # @param [Account] target_account Account the Salmon was addressed to
-  def call(envelope, target_account)
-    body = salmon.unpack(envelope)
-
-    xml = Nokogiri::XML(body)
-    xml.encoding = 'utf-8'
-
-    account = author_from_xml(xml.at_xpath('/xmlns:entry', xmlns: OStatus::TagManager::XMLNS))
-
-    return if account.nil? || account.suspended?
-
-    if salmon.verify(envelope, account.keypair)
-      RemoteProfileUpdateWorker.perform_async(account.id, body.force_encoding('UTF-8'), true)
-
-      case verb(xml)
-      when :follow
-        follow!(account, target_account) unless target_account.locked? || target_account.blocking?(account) || target_account.domain_blocking?(account.domain)
-      when :request_friend
-        follow_request!(account, target_account) unless !target_account.locked? || target_account.blocking?(account) || target_account.domain_blocking?(account.domain)
-      when :authorize
-        authorize_follow_request!(account, target_account)
-      when :reject
-        reject_follow_request!(account, target_account)
-      when :unfollow
-        unfollow!(account, target_account)
-      when :favorite
-        favourite!(xml, account)
-      when :unfavorite
-        unfavourite!(xml, account)
-      when :post
-        add_post!(body, account) if mentions_account?(xml, target_account)
-      when :share
-        add_post!(body, account) unless status(xml).nil?
-      when :delete
-        delete_post!(xml, account)
-      when :block
-        reflect_block!(account, target_account)
-      when :unblock
-        reflect_unblock!(account, target_account)
-      end
-    end
-  rescue HTTP::Error, OStatus2::BadSalmonError, Mastodon::NotPermittedError
-    nil
-  end
-
-  private
-
-  def mentions_account?(xml, account)
-    xml.xpath('/xmlns:entry/xmlns:link[@rel="mentioned"]', xmlns: OStatus::TagManager::XMLNS).each { |mention_link| return true if [OStatus::TagManager.instance.uri_for(account), OStatus::TagManager.instance.url_for(account)].include?(mention_link.attribute('href').value) }
-    false
-  end
-
-  def verb(xml)
-    raw = xml.at_xpath('//activity:verb', activity: OStatus::TagManager::AS_XMLNS).content
-    OStatus::TagManager::VERBS.key(raw)
-  rescue
-    :post
-  end
-
-  def follow!(account, target_account)
-    follow = account.follow!(target_account)
-    FollowRequest.find_by(account: account, target_account: target_account)&.destroy
-    NotifyService.new.call(target_account, follow)
-  end
-
-  def follow_request!(account, target_account)
-    return if account.requested?(target_account)
-
-    follow_request = FollowRequest.create!(account: account, target_account: target_account)
-    NotifyService.new.call(target_account, follow_request)
-  end
-
-  def authorize_follow_request!(account, target_account)
-    follow_request = FollowRequest.find_by(account: target_account, target_account: account)
-    follow_request&.authorize!
-    Pubsubhubbub::SubscribeWorker.perform_async(account.id) unless account.subscribed?
-  end
-
-  def reject_follow_request!(account, target_account)
-    follow_request = FollowRequest.find_by(account: target_account, target_account: account)
-    follow_request&.reject!
-  end
-
-  def unfollow!(account, target_account)
-    account.unfollow!(target_account)
-    FollowRequest.find_by(account: account, target_account: target_account)&.destroy
-  end
-
-  def reflect_block!(account, target_account)
-    UnfollowService.new.call(target_account, account) if target_account.following?(account)
-    account.block!(target_account)
-  end
-
-  def reflect_unblock!(account, target_account)
-    UnblockService.new.call(account, target_account)
-  end
-
-  def delete_post!(xml, account)
-    status = Status.find(xml.at_xpath('//xmlns:id', xmlns: OStatus::TagManager::XMLNS).content)
-
-    return if status.nil?
-
-    authorize_with account, status, :destroy?
-
-    RemovalWorker.perform_async(status.id)
-  end
-
-  def favourite!(xml, from_account)
-    current_status = status(xml)
-
-    return if current_status.nil?
-
-    favourite = current_status.favourites.where(account: from_account).first_or_create!(account: from_account)
-    NotifyService.new.call(current_status.account, favourite)
-  end
-
-  def unfavourite!(xml, from_account)
-    current_status = status(xml)
-
-    return if current_status.nil?
-
-    favourite = current_status.favourites.where(account: from_account).first
-    favourite&.destroy
-  end
-
-  def add_post!(body, account)
-    ProcessingWorker.perform_async(account.id, body.force_encoding('UTF-8'))
-  end
-
-  def status(xml)
-    uri = activity_id(xml)
-    return nil unless OStatus::TagManager.instance.local_id?(uri)
-    Status.find(OStatus::TagManager.instance.unique_tag_to_local_id(uri, 'Status'))
-  end
-
-  def activity_id(xml)
-    xml.at_xpath('//activity:object', activity: OStatus::TagManager::AS_XMLNS).at_xpath('./xmlns:id', xmlns: OStatus::TagManager::XMLNS).content
-  end
-
-  def salmon
-    @salmon ||= OStatus2::Salmon.new
-  end
-end
-- 
cgit