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-rw-r--r--app/services/authorize_follow_service.rb2
-rw-r--r--app/services/block_service.rb2
-rw-r--r--app/services/concerns/stream_entry_renderer.rb2
-rw-r--r--app/services/favourite_service.rb2
-rw-r--r--app/services/fetch_remote_account_service.rb3
-rw-r--r--app/services/fetch_remote_status_service.rb3
-rw-r--r--app/services/follow_service.rb4
-rw-r--r--app/services/notify_service.rb7
-rw-r--r--app/services/process_feed_service.rb4
-rw-r--r--app/services/process_interaction_service.rb2
-rw-r--r--app/services/reject_follow_service.rb2
-rw-r--r--app/services/resolve_remote_account_service.rb173
-rw-r--r--app/services/send_interaction_service.rb4
-rw-r--r--app/services/subscribe_service.rb4
-rw-r--r--app/services/unblock_service.rb2
-rw-r--r--app/services/unfavourite_service.rb2
-rw-r--r--app/services/unfollow_service.rb2
-rw-r--r--app/services/unsubscribe_service.rb2
18 files changed, 141 insertions, 81 deletions
diff --git a/app/services/authorize_follow_service.rb b/app/services/authorize_follow_service.rb
index a25d11dbd..41815a393 100644
--- a/app/services/authorize_follow_service.rb
+++ b/app/services/authorize_follow_service.rb
@@ -10,6 +10,6 @@ class AuthorizeFollowService < BaseService
   private
 
   def build_xml(follow_request)
-    Ostatus::AtomSerializer.render(Ostatus::AtomSerializer.new.authorize_follow_request_salmon(follow_request))
+    OStatus::AtomSerializer.render(OStatus::AtomSerializer.new.authorize_follow_request_salmon(follow_request))
   end
 end
diff --git a/app/services/block_service.rb b/app/services/block_service.rb
index 15420e192..5d7bf6a3b 100644
--- a/app/services/block_service.rb
+++ b/app/services/block_service.rb
@@ -18,6 +18,6 @@ class BlockService < BaseService
   private
 
   def build_xml(block)
-    Ostatus::AtomSerializer.render(Ostatus::AtomSerializer.new.block_salmon(block))
+    OStatus::AtomSerializer.render(OStatus::AtomSerializer.new.block_salmon(block))
   end
 end
diff --git a/app/services/concerns/stream_entry_renderer.rb b/app/services/concerns/stream_entry_renderer.rb
index d9c30c53c..9f6c8a082 100644
--- a/app/services/concerns/stream_entry_renderer.rb
+++ b/app/services/concerns/stream_entry_renderer.rb
@@ -2,6 +2,6 @@
 
 module StreamEntryRenderer
   def stream_entry_to_xml(stream_entry)
-    Ostatus::AtomSerializer.render(Ostatus::AtomSerializer.new.entry(stream_entry, true))
+    OStatus::AtomSerializer.render(OStatus::AtomSerializer.new.entry(stream_entry, true))
   end
 end
diff --git a/app/services/favourite_service.rb b/app/services/favourite_service.rb
index a08aba638..291f9e56e 100644
--- a/app/services/favourite_service.rb
+++ b/app/services/favourite_service.rb
@@ -28,6 +28,6 @@ class FavouriteService < BaseService
   private
 
   def build_xml(favourite)
-    Ostatus::AtomSerializer.render(Ostatus::AtomSerializer.new.favourite_salmon(favourite))
+    OStatus::AtomSerializer.render(OStatus::AtomSerializer.new.favourite_salmon(favourite))
   end
 end
diff --git a/app/services/fetch_remote_account_service.rb b/app/services/fetch_remote_account_service.rb
index 1efac365b..8eed0d454 100644
--- a/app/services/fetch_remote_account_service.rb
+++ b/app/services/fetch_remote_account_service.rb
@@ -32,8 +32,5 @@ class FetchRemoteAccountService < BaseService
   rescue Nokogiri::XML::XPath::SyntaxError
     Rails.logger.debug 'Invalid XML or missing namespace'
     nil
-  rescue Goldfinger::NotFoundError, Goldfinger::Error
-    Rails.logger.debug 'Exceptions related to Goldfinger occurs'
-    nil
   end
 end
diff --git a/app/services/fetch_remote_status_service.rb b/app/services/fetch_remote_status_service.rb
index 6ac31e4d8..b9f5f97b1 100644
--- a/app/services/fetch_remote_status_service.rb
+++ b/app/services/fetch_remote_status_service.rb
@@ -33,9 +33,6 @@ class FetchRemoteStatusService < BaseService
   rescue Nokogiri::XML::XPath::SyntaxError
     Rails.logger.debug 'Invalid XML or missing namespace'
     nil
-  rescue Goldfinger::NotFoundError, Goldfinger::Error
-    Rails.logger.debug 'Exceptions related to Goldfinger occurs'
-    nil
   end
 
   def confirmed_domain?(domain, account)
diff --git a/app/services/follow_service.rb b/app/services/follow_service.rb
index 7a7275b6e..3155feaa4 100644
--- a/app/services/follow_service.rb
+++ b/app/services/follow_service.rb
@@ -57,10 +57,10 @@ class FollowService < BaseService
   end
 
   def build_follow_request_xml(follow_request)
-    Ostatus::AtomSerializer.render(Ostatus::AtomSerializer.new.follow_request_salmon(follow_request))
+    OStatus::AtomSerializer.render(OStatus::AtomSerializer.new.follow_request_salmon(follow_request))
   end
 
   def build_follow_xml(follow)
-    Ostatus::AtomSerializer.render(Ostatus::AtomSerializer.new.follow_salmon(follow))
+    OStatus::AtomSerializer.render(OStatus::AtomSerializer.new.follow_salmon(follow))
   end
 end
diff --git a/app/services/notify_service.rb b/app/services/notify_service.rb
index c7d8ad50a..a44df5180 100644
--- a/app/services/notify_service.rb
+++ b/app/services/notify_service.rb
@@ -65,7 +65,12 @@ class NotifyService < BaseService
   end
 
   def send_push_notifications
-    sessions_with_subscriptions_ids = @recipient.user.session_activations.where.not(web_push_subscription: nil).pluck(:id)
+    # HACK: Can be caused by quickly unfavouriting a status, since creating
+    # a favourite and creating a notification are not wrapped in a transaction.
+    return if @notification.activity.nil?
+
+    sessions_with_subscriptions = @recipient.user.session_activations.where.not(web_push_subscription: nil)
+    sessions_with_subscriptions_ids = sessions_with_subscriptions.select { |session| session.web_push_subscription.pushable? @notification }.map(&:id)
 
     WebPushNotificationWorker.push_bulk(sessions_with_subscriptions_ids) do |session_activation_id|
       [session_activation_id, @notification.id]
diff --git a/app/services/process_feed_service.rb b/app/services/process_feed_service.rb
index b99048a06..31191a818 100644
--- a/app/services/process_feed_service.rb
+++ b/app/services/process_feed_service.rb
@@ -20,10 +20,10 @@ class ProcessFeedService < BaseService
   end
 
   def process_entry(xml, account)
-    activity = Ostatus::Activity::General.new(xml, account)
+    activity = OStatus::Activity::General.new(xml, account)
     activity.specialize&.perform if activity.status?
   rescue ActiveRecord::RecordInvalid => e
-    Rails.logger.debug "Nothing was saved for #{id} because: #{e}"
+    Rails.logger.debug "Nothing was saved for #{activity.id} because: #{e}"
     nil
   end
 end
diff --git a/app/services/process_interaction_service.rb b/app/services/process_interaction_service.rb
index 584a109ad..cc99cde03 100644
--- a/app/services/process_interaction_service.rb
+++ b/app/services/process_interaction_service.rb
@@ -47,7 +47,7 @@ class ProcessInteractionService < BaseService
         reflect_unblock!(account, target_account)
       end
     end
-  rescue Goldfinger::Error, HTTP::Error, OStatus2::BadSalmonError, Mastodon::NotPermittedError
+  rescue HTTP::Error, OStatus2::BadSalmonError, Mastodon::NotPermittedError
     nil
   end
 
diff --git a/app/services/reject_follow_service.rb b/app/services/reject_follow_service.rb
index 87fc49b34..fd7e66c23 100644
--- a/app/services/reject_follow_service.rb
+++ b/app/services/reject_follow_service.rb
@@ -10,6 +10,6 @@ class RejectFollowService < BaseService
   private
 
   def build_xml(follow_request)
-    Ostatus::AtomSerializer.render(Ostatus::AtomSerializer.new.reject_follow_request_salmon(follow_request))
+    OStatus::AtomSerializer.render(OStatus::AtomSerializer.new.reject_follow_request_salmon(follow_request))
   end
 end
diff --git a/app/services/resolve_remote_account_service.rb b/app/services/resolve_remote_account_service.rb
index d2dfda824..e0e2ebc83 100644
--- a/app/services/resolve_remote_account_service.rb
+++ b/app/services/resolve_remote_account_service.rb
@@ -11,97 +11,154 @@ class ResolveRemoteAccountService < BaseService
   # @param [String] uri User URI in the form of username@domain
   # @return [Account]
   def call(uri, update_profile = true, redirected = nil)
-    username, domain = uri.split('@')
+    @username, @domain = uri.split('@')
 
-    return Account.find_local(username) if TagManager.instance.local_domain?(domain)
+    return Account.find_local(@username) if TagManager.instance.local_domain?(@domain)
 
-    account = Account.find_remote(username, domain)
-    return account unless account_needs_webfinger_update?(account)
+    @account = Account.find_remote(@username, @domain)
 
-    Rails.logger.debug "Looking up webfinger for #{uri}"
+    return @account unless webfinger_update_due?
 
-    data = Goldfinger.finger("acct:#{uri}")
+    Rails.logger.debug "Looking up webfinger for #{uri}"
 
-    raise Goldfinger::Error, 'Missing resource links' if data.link('http://schemas.google.com/g/2010#updates-from').nil? || data.link('salmon').nil? || data.link('http://webfinger.net/rel/profile-page').nil? || data.link('magic-public-key').nil?
+    @webfinger = Goldfinger.finger("acct:#{uri}")
 
-    # Disallow account hijacking
-    confirmed_username, confirmed_domain = data.subject.gsub(/\Aacct:/, '').split('@')
+    confirmed_username, confirmed_domain = @webfinger.subject.gsub(/\Aacct:/, '').split('@')
 
-    unless confirmed_username.casecmp(username).zero? && confirmed_domain.casecmp(domain).zero?
-      return call("#{confirmed_username}@#{confirmed_domain}", update_profile, true) if redirected.nil?
-      raise Goldfinger::Error, 'Requested and returned acct URI do not match'
+    if confirmed_username.casecmp(@username).zero? && confirmed_domain.casecmp(@domain).zero?
+      @username = confirmed_username
+      @domain   = confirmed_domain
+    elsif redirected.nil?
+      return call("#{confirmed_username}@#{confirmed_domain}", update_profile, true)
+    else
+      Rails.logger.debug 'Requested and returned acct URIs do not match'
+      return
     end
 
-    return Account.find_local(confirmed_username) if TagManager.instance.local_domain?(confirmed_domain)
+    return if links_missing?
+    return Account.find_local(@username) if TagManager.instance.local_domain?(@domain)
 
-    confirmed_account = Account.find_remote(confirmed_username, confirmed_domain)
-    if confirmed_account.nil?
-      Rails.logger.debug "Creating new remote account for #{uri}"
+    RedisLock.acquire(lock_options) do |lock|
+      if lock.acquired?
+        @account = Account.find_remote(@username, @domain)
 
-      domain_block = DomainBlock.find_by(domain: domain)
-      account = Account.new(username: confirmed_username, domain: confirmed_domain)
-      account.suspended   = true if domain_block && domain_block.suspend?
-      account.silenced    = true if domain_block && domain_block.silence?
-      account.private_key = nil
-    else
-      account = confirmed_account
+        create_account if @account.nil?
+        update_account
+
+        update_account_profile if update_profile
+      end
     end
 
-    account.last_webfingered_at = Time.now.utc
+    @account
+  rescue Goldfinger::Error => e
+    Rails.logger.debug "Webfinger query for #{uri} unsuccessful: #{e}"
+    nil
+  end
 
-    account.remote_url  = data.link('http://schemas.google.com/g/2010#updates-from').href
-    account.salmon_url  = data.link('salmon').href
-    account.url         = data.link('http://webfinger.net/rel/profile-page').href
-    account.public_key  = magic_key_to_pem(data.link('magic-public-key').href)
+  private
 
-    body, xml = get_feed(account.remote_url)
-    hubs      = get_hubs(xml)
+  def links_missing?
+    @webfinger.link('http://schemas.google.com/g/2010#updates-from').nil? ||
+      @webfinger.link('salmon').nil? ||
+      @webfinger.link('http://webfinger.net/rel/profile-page').nil? ||
+      @webfinger.link('magic-public-key').nil? ||
+      canonical_uri.nil? ||
+      hub_url.nil?
+  end
 
-    account.uri     = get_account_uri(xml)
-    account.hub_url = hubs.first.attribute('href').value
+  def webfinger_update_due?
+    @account.nil? || @account.last_webfingered_at.nil? || @account.last_webfingered_at <= 1.day.ago
+  end
 
-    begin
-      account.save!
-      get_profile(body, account) if update_profile
-    rescue ActiveRecord::RecordNotUnique
-      # The account has been added by another worker!
-      return Account.find_remote(confirmed_username, confirmed_domain)
-    end
+  def create_account
+    Rails.logger.debug "Creating new remote account for #{@username}@#{@domain}"
 
-    account
+    @account = Account.new(username: @username, domain: @domain)
+    @account.suspended   = true if auto_suspend?
+    @account.silenced    = true if auto_silence?
+    @account.private_key = nil
   end
 
-  private
+  def update_account
+    @account.last_webfingered_at = Time.now.utc
+    @account.remote_url          = atom_url
+    @account.salmon_url          = salmon_url
+    @account.url                 = url
+    @account.public_key          = public_key
+    @account.uri                 = canonical_uri
+    @account.hub_url             = hub_url
+    @account.save!
+  end
+
+  def auto_suspend?
+    domain_block && domain_block.suspend?
+  end
+
+  def auto_silence?
+    domain_block && domain_block.silence?
+  end
 
-  def account_needs_webfinger_update?(account)
-    account&.last_webfingered_at.nil? || account.last_webfingered_at <= 1.day.ago
+  def domain_block
+    return @domain_block if defined?(@domain_block)
+    @domain_block = DomainBlock.find_by(domain: @domain)
   end
 
-  def get_feed(url)
-    response = Request.new(:get, url).perform
-    raise Goldfinger::Error, "Feed attempt failed for #{url}: HTTP #{response.code}" unless response.code == 200
-    [response.to_s, Nokogiri::XML(response)]
+  def atom_url
+    @atom_url ||= @webfinger.link('http://schemas.google.com/g/2010#updates-from').href
   end
 
-  def get_hubs(xml)
-    hubs = xml.xpath('//xmlns:link[@rel="hub"]')
-    raise Goldfinger::Error, 'No PubSubHubbub hubs found' if hubs.empty? || hubs.first.attribute('href').nil?
-    hubs
+  def salmon_url
+    @salmon_url ||= @webfinger.link('salmon').href
   end
 
-  def get_account_uri(xml)
-    author_uri = xml.at_xpath('/xmlns:feed/xmlns:author/xmlns:uri')
+  def url
+    @url ||= @webfinger.link('http://webfinger.net/rel/profile-page').href
+  end
+
+  def public_key
+    @public_key ||= magic_key_to_pem(@webfinger.link('magic-public-key').href)
+  end
+
+  def canonical_uri
+    return @canonical_uri if defined?(@canonical_uri)
+
+    author_uri = atom.at_xpath('/xmlns:feed/xmlns:author/xmlns:uri')
 
     if author_uri.nil?
-      owner = xml.at_xpath('/xmlns:feed').at_xpath('./dfrn:owner', dfrn: DFRN_NS)
+      owner      = atom.at_xpath('/xmlns:feed').at_xpath('./dfrn:owner', dfrn: DFRN_NS)
       author_uri = owner.at_xpath('./xmlns:uri') unless owner.nil?
     end
 
-    raise Goldfinger::Error, 'Author URI could not be found' if author_uri.nil?
-    author_uri.content
+    @canonical_uri = author_uri.nil? ? nil : author_uri.content
+  end
+
+  def hub_url
+    return @hub_url if defined?(@hub_url)
+
+    hubs     = atom.xpath('//xmlns:link[@rel="hub"]')
+    @hub_url = hubs.empty? || hubs.first['href'].nil? ? nil : hubs.first['href']
+  end
+
+  def atom_body
+    return @atom_body if defined?(@atom_body)
+
+    response = Request.new(:get, atom_url).perform
+
+    raise Mastodon::UnexpectedResponseError, response unless response.code == 200
+
+    @atom_body = response.to_s
+  end
+
+  def atom
+    return @atom if defined?(@atom)
+    @atom = Nokogiri::XML(atom_body)
+  end
+
+  def update_account_profile
+    RemoteProfileUpdateWorker.perform_async(@account.id, atom_body.force_encoding('UTF-8'), false)
   end
 
-  def get_profile(body, account)
-    RemoteProfileUpdateWorker.perform_async(account.id, body.force_encoding('UTF-8'), false)
+  def lock_options
+    { redis: Redis.current, key: "resolve:#{@username}@#{@domain}" }
   end
 end
diff --git a/app/services/send_interaction_service.rb b/app/services/send_interaction_service.rb
index ef38a748b..c11813abc 100644
--- a/app/services/send_interaction_service.rb
+++ b/app/services/send_interaction_service.rb
@@ -10,11 +10,11 @@ class SendInteractionService < BaseService
     @source_account = source_account
     @target_account = target_account
 
-    return if block_notification?
+    return if !target_account.ostatus? || block_notification?
 
     delivery = build_request.perform
 
-    raise "Delivery failed for #{target_account.salmon_url}: HTTP #{delivery.code}" unless delivery.code > 199 && delivery.code < 300
+    raise Mastodon::UnexpectedResponseError, delivery unless delivery.code > 199 && delivery.code < 300
   end
 
   private
diff --git a/app/services/subscribe_service.rb b/app/services/subscribe_service.rb
index f58067038..d3e41e691 100644
--- a/app/services/subscribe_service.rb
+++ b/app/services/subscribe_service.rb
@@ -2,6 +2,8 @@
 
 class SubscribeService < BaseService
   def call(account)
+    return unless account.ostatus?
+
     @account        = account
     @account.secret = SecureRandom.hex
     @response       = build_request.perform
@@ -16,7 +18,7 @@ class SubscribeService < BaseService
     else
       # The response was either a 429 rate limit, or a 5xx error.
       # We need to retry at a later time. Fail loudly!
-      raise "Subscription attempt failed for #{@account.acct} (#{@account.hub_url}): HTTP #{@response.code}"
+      raise Mastodon::UnexpectedResponseError, @response
     end
   end
 
diff --git a/app/services/unblock_service.rb b/app/services/unblock_service.rb
index 50c2dc2f0..ff15c7275 100644
--- a/app/services/unblock_service.rb
+++ b/app/services/unblock_service.rb
@@ -11,6 +11,6 @@ class UnblockService < BaseService
   private
 
   def build_xml(block)
-    Ostatus::AtomSerializer.render(Ostatus::AtomSerializer.new.unblock_salmon(block))
+    OStatus::AtomSerializer.render(OStatus::AtomSerializer.new.unblock_salmon(block))
   end
 end
diff --git a/app/services/unfavourite_service.rb b/app/services/unfavourite_service.rb
index ede3caad1..564aaee46 100644
--- a/app/services/unfavourite_service.rb
+++ b/app/services/unfavourite_service.rb
@@ -13,6 +13,6 @@ class UnfavouriteService < BaseService
   private
 
   def build_xml(favourite)
-    Ostatus::AtomSerializer.render(Ostatus::AtomSerializer.new.unfavourite_salmon(favourite))
+    OStatus::AtomSerializer.render(OStatus::AtomSerializer.new.unfavourite_salmon(favourite))
   end
 end
diff --git a/app/services/unfollow_service.rb b/app/services/unfollow_service.rb
index 0c9a5f657..388909586 100644
--- a/app/services/unfollow_service.rb
+++ b/app/services/unfollow_service.rb
@@ -14,6 +14,6 @@ class UnfollowService < BaseService
   private
 
   def build_xml(follow)
-    Ostatus::AtomSerializer.render(Ostatus::AtomSerializer.new.unfollow_salmon(follow))
+    OStatus::AtomSerializer.render(OStatus::AtomSerializer.new.unfollow_salmon(follow))
   end
 end
diff --git a/app/services/unsubscribe_service.rb b/app/services/unsubscribe_service.rb
index c2f022d7d..c5e0e73fe 100644
--- a/app/services/unsubscribe_service.rb
+++ b/app/services/unsubscribe_service.rb
@@ -2,6 +2,8 @@
 
 class UnsubscribeService < BaseService
   def call(account)
+    return unless account.ostatus?
+
     @account  = account
     @response = build_request.perform