From ba444797d20f744250fe2670a8c1f0424c909a84 Mon Sep 17 00:00:00 2001
From: ThibG <thib@sitedethib.com>
Date: Wed, 3 Oct 2018 23:44:13 +0200
Subject: [PATCH] Fix handling of ActivityPub activities lacking some
 attributes (#8864)

---
 app/lib/activitypub/activity/accept.rb | 2 +-
 app/lib/activitypub/activity/delete.rb | 2 ++
 app/lib/activitypub/activity/reject.rb | 2 +-
 app/lib/activitypub/activity/undo.rb   | 2 ++
 4 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/app/lib/activitypub/activity/accept.rb b/app/lib/activitypub/activity/accept.rb
index 7e60b2c00..348ee0d1c 100644
--- a/app/lib/activitypub/activity/accept.rb
+++ b/app/lib/activitypub/activity/accept.rb
@@ -26,7 +26,7 @@ class ActivityPub::Activity::Accept < ActivityPub::Activity
   end
 
   def relay
-    @relay ||= Relay.find_by(follow_activity_id: object_uri)
+    @relay ||= Relay.find_by(follow_activity_id: object_uri) unless object_uri.nil?
   end
 
   def relay_follow?
diff --git a/app/lib/activitypub/activity/delete.rb b/app/lib/activitypub/activity/delete.rb
index 3474d55d9..457047ac0 100644
--- a/app/lib/activitypub/activity/delete.rb
+++ b/app/lib/activitypub/activity/delete.rb
@@ -17,6 +17,8 @@ class ActivityPub::Activity::Delete < ActivityPub::Activity
   end
 
   def delete_note
+    return if object_uri.nil?
+
     @status   = Status.find_by(uri: object_uri, account: @account)
     @status ||= Status.find_by(uri: @object['atomUri'], account: @account) if @object.is_a?(Hash) && @object['atomUri'].present?
 
diff --git a/app/lib/activitypub/activity/reject.rb b/app/lib/activitypub/activity/reject.rb
index d81b157de..dba21fb9a 100644
--- a/app/lib/activitypub/activity/reject.rb
+++ b/app/lib/activitypub/activity/reject.rb
@@ -28,7 +28,7 @@ class ActivityPub::Activity::Reject < ActivityPub::Activity
   end
 
   def relay
-    @relay ||= Relay.find_by(follow_activity_id: object_uri)
+    @relay ||= Relay.find_by(follow_activity_id: object_uri) unless object_uri.nil?
   end
 
   def relay_follow?
diff --git a/app/lib/activitypub/activity/undo.rb b/app/lib/activitypub/activity/undo.rb
index 64c2be7d9..599823c6e 100644
--- a/app/lib/activitypub/activity/undo.rb
+++ b/app/lib/activitypub/activity/undo.rb
@@ -19,6 +19,8 @@ class ActivityPub::Activity::Undo < ActivityPub::Activity
   private
 
   def undo_announce
+    return if object_uri.nil?
+
     status   = Status.find_by(uri: object_uri, account: @account)
     status ||= Status.find_by(uri: @object['atomUri'], account: @account) if @object.is_a?(Hash) && @object['atomUri'].present?
 
-- 
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