Add domain_blocking to the relationship API (GET /api/v1/accounts/relationships)

lib/pleroma/user.ex

@@ -882,19 +882,26 @@ defmodule Pleroma.User do
   def muted_notifications?(user, %{ap_id: ap_id}),
     do: Enum.member?(user.info.muted_notifications, ap_id)
 
-  def blocks?(%User{info: info} = _user, %{ap_id: ap_id}) do
-    blocks = info.blocks
-
-    domain_blocks = Pleroma.Web.ActivityPub.MRF.subdomains_regex(info.domain_blocks)
-
-    %{host: host} = URI.parse(ap_id)
-
-    Enum.member?(blocks, ap_id) ||
-      Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, host)
+  def blocks?(%User{} = user, %User{} = target) do
+    blocks_ap_id?(user, target) || blocks_domain?(user, target)
   end
 
   def blocks?(nil, _), do: false
 
+  def blocks_ap_id?(%User{} = user, %User{} = target) do
+    Enum.member?(user.info.blocks, target.ap_id)
+  end
+
+  def blocks_ap_id?(_, _), do: false
+
+  def blocks_domain?(%User{} = user, %User{} = target) do
+    domain_blocks = Pleroma.Web.ActivityPub.MRF.subdomains_regex(user.info.domain_blocks)
+    %{host: host} = URI.parse(target.ap_id)
+    Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, host)
+  end
+
+  def blocks_domain?(_, _), do: false
+
   def subscribed_to?(user, %{ap_id: ap_id}) do
     with %User{} = target <- get_cached_by_ap_id(ap_id) do
       Enum.member?(target.info.subscribers, user.ap_id)

lib/pleroma/web/mastodon_api/views/account_view.ex

@@ -50,13 +50,13 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
       id: to_string(target.id),
       following: User.following?(user, target),
       followed_by: User.following?(target, user),
-      blocking: User.blocks?(user, target),
-      blocked_by: User.blocks?(target, user),
+      blocking: User.blocks_ap_id?(user, target),
+      blocked_by: User.blocks_ap_id?(target, user),
       muting: User.mutes?(user, target),
       muting_notifications: User.muted_notifications?(user, target),
       subscribing: User.subscribed_to?(user, target),
       requested: requested,
-      domain_blocking: false,
+      domain_blocking: User.blocks_domain?(user, target),
       showing_reblogs: User.showing_reblogs?(user, target),
       endorsed: false
     }