From 2822fbc443addf08651961543e1a63abdd409d87 Mon Sep 17 00:00:00 2001
From: multiple creatures <dev@multiple-creature.party>
Date: Mon, 22 Jul 2019 21:12:54 -0500
Subject: move autoreject check to own module & check for reject before pulling
 resources

---
 app/services/activitypub/fetch_remote_account_service.rb | 7 +++++++
 app/services/activitypub/fetch_remote_status_service.rb  | 8 ++++++++
 app/services/activitypub/fetch_replies_service.rb        | 7 ++++++-
 3 files changed, 21 insertions(+), 1 deletion(-)

(limited to 'app/services/activitypub')

diff --git a/app/services/activitypub/fetch_remote_account_service.rb b/app/services/activitypub/fetch_remote_account_service.rb
index 3c2044941..df1e79d7d 100644
--- a/app/services/activitypub/fetch_remote_account_service.rb
+++ b/app/services/activitypub/fetch_remote_account_service.rb
@@ -2,6 +2,7 @@
 
 class ActivityPub::FetchRemoteAccountService < BaseService
   include JsonLdHelper
+  include AutorejectHelper
 
   SUPPORTED_TYPES = %w(Application Group Organization Person Service).freeze
 
@@ -9,12 +10,14 @@ class ActivityPub::FetchRemoteAccountService < BaseService
   def call(uri, id: true, prefetched_body: nil, break_on_redirect: false, only_key: false)
     return ActivityPub::TagManager.instance.uri_to_resource(uri, Account) if ActivityPub::TagManager.instance.local_uri?(uri)
 
+    return if autoreject?(uri)
     @json = if prefetched_body.nil?
               fetch_resource(uri, id)
             else
               body_to_json(prefetched_body, compare_id: id ? uri : nil)
             end
 
+    return if autoreject?
     return if !supported_context? || !expected_type? || (break_on_redirect && @json['movedTo'].present?)
 
     @uri      = @json['id']
@@ -59,4 +62,8 @@ class ActivityPub::FetchRemoteAccountService < BaseService
   def expected_type?
     equals_or_includes_any?(@json['type'], SUPPORTED_TYPES)
   end
+
+  def object_uri
+    nil
+  end
 end
diff --git a/app/services/activitypub/fetch_remote_status_service.rb b/app/services/activitypub/fetch_remote_status_service.rb
index 469821032..42280ad74 100644
--- a/app/services/activitypub/fetch_remote_status_service.rb
+++ b/app/services/activitypub/fetch_remote_status_service.rb
@@ -2,15 +2,19 @@
 
 class ActivityPub::FetchRemoteStatusService < BaseService
   include JsonLdHelper
+  include AutorejectHelper
 
   # Should be called when uri has already been checked for locality
   def call(uri, id: true, prefetched_body: nil, on_behalf_of: nil)
+    return if autoreject?(uri)
+
     @json = if prefetched_body.nil?
               fetch_resource(uri, id, on_behalf_of)
             else
               body_to_json(prefetched_body, compare_id: id ? uri : nil)
             end
 
+    return if autoreject?
     return unless supported_context? && expected_type?
 
     return if actor_id.nil? || !trustworthy_attribution?(@json['id'], actor_id)
@@ -49,4 +53,8 @@ class ActivityPub::FetchRemoteStatusService < BaseService
   def needs_update(actor)
     actor.possibly_stale?
   end
+
+  def object_uri
+    nil
+  end
 end
diff --git a/app/services/activitypub/fetch_replies_service.rb b/app/services/activitypub/fetch_replies_service.rb
index 8cb309e52..3e9a2f02a 100644
--- a/app/services/activitypub/fetch_replies_service.rb
+++ b/app/services/activitypub/fetch_replies_service.rb
@@ -2,6 +2,7 @@
 
 class ActivityPub::FetchRepliesService < BaseService
   include JsonLdHelper
+  include AutorejectHelper
 
   def call(parent_status, collection_or_uri, allow_synchronous_requests = true)
     @account = parent_status.account
@@ -44,6 +45,10 @@ class ActivityPub::FetchRepliesService < BaseService
     # amplification attacks.
 
     # Also limit to 5 fetched replies to limit potential for DoS.
-    @items.map { |item| value_or_id(item) }.reject { |uri| invalid_origin?(uri) }.take(5)
+    @items.map { |item| value_or_id(item) }.reject { |uri| autoreject?(uri) || invalid_origin?(uri) }.take(5)
+  end
+
+  def object_uri
+    nil
   end
 end
-- 
cgit