X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fweb%2Factivity_pub%2Ftransmogrifier.ex;h=17b0636094d8503490a027e1a4c8d9dc92c1c334;hb=76d6b1c6ab2813b1fb8f4473e4d722cc32fb2fed;hp=d51d8626bebd9f9f1b3a5664cdd18292e4c7badc;hpb=5c8b8f6cb7212bd202924b535cd2a263416e78d4;p=akkoma

diff --git a/lib/pleroma/web/activity_pub/transmogrifier.ex b/lib/pleroma/web/activity_pub/transmogrifier.ex
index d51d8626b..17b063609 100644
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@@ -50,6 +50,19 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
     end
   end
 
+  def contain_origin_from_id(id, %{"id" => nil}), do: :error
+
+  def contain_origin_from_id(id, %{"id" => other_id} = params) do
+    id_uri = URI.parse(id)
+    other_uri = URI.parse(other_id)
+
+    if id_uri.host == other_uri.host do
+      :ok
+    else
+      :error
+    end
+  end
+
   @doc """
   Modifies an incoming AP object (mastodon format) to our internal format.
   """
@@ -434,7 +447,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
       update_data =
         new_user_data
         |> Map.take([:name, :bio, :avatar])
-        |> Map.put(:info, Map.merge(actor.info, %{"banner" => banner, "locked" => locked}))
+        |> Map.put(:info, %{"banner" => banner, "locked" => locked})
 
       actor
       |> User.upgrade_changeset(update_data)
@@ -454,15 +467,20 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
     end
   end
 
-  # TODO: Make secure.
+  # TODO: We presently assume that any actor on the same origin domain as the object being
+  # deleted has the rights to delete that object.  A better way to validate whether or not
+  # the object should be deleted is to refetch the object URI, which should return either
+  # an error or a tombstone.  This would allow us to verify that a deletion actually took
+  # place.
   def handle_incoming(
-        %{"type" => "Delete", "object" => object_id, "actor" => actor, "id" => _id} = data
+        %{"type" => "Delete", "object" => object_id, "actor" => _actor, "id" => _id} = data
       ) do
     object_id = Utils.get_ap_id(object_id)
 
     with actor <- get_actor(data),
-         %User{} = _actor <- User.get_or_fetch_by_ap_id(actor),
+         %User{} = actor <- User.get_or_fetch_by_ap_id(actor),
          {:ok, object} <- get_obj_helper(object_id) || fetch_obj_helper(object_id),
+         :ok <- contain_origin(actor.ap_id, object.data),
          {:ok, activity} <- ActivityPub.delete(object, false) do
       {:ok, activity}
     else
@@ -832,10 +850,6 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   def upgrade_user_from_ap_id(ap_id, async \\ true) do
     with %User{local: false} = user <- User.get_by_ap_id(ap_id),
          {:ok, data} <- ActivityPub.fetch_and_prepare_user_from_ap_id(ap_id) do
-      data =
-        data
-        |> Map.put(:info, Map.merge(user.info, data[:info]))
-
       already_ap = User.ap_enabled?(user)
 
       {:ok, user} =