commit: abf25e5d5254edc88a65610bf5a0fd7e52f545c3
parent: 3a0f99ed35a84145e713d4c640c50dc82c1b0dbb
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date: Sat, 12 Sep 2020 12:05:36 +0200
Create MRF.filter_pipeline to inject :object_data when present
Diffstat:
6 files changed, 59 insertions(+), 15 deletions(-)
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -27,6 +27,12 @@ switched to a new configuration mechanism, however it was not officially removed
- Welcome Chat messages preventing user registration with MRF Simple Policy applied to the local instance
- Mastodon API: the public timeline returning an error when the `reply_visibility` parameter is set to `self` for an unauthenticated user
+## Unreleased-patch
+
+### Security
+
+- Fix most MRF rules either crashing or not being applied to objects passed into the Common Pipeline (ChatMessage, Question, Answer, Audio, Event)
+
## [2.1.1] - 2020-09-08
### Security
diff --git a/lib/pleroma/web/activity_pub/mrf.ex b/lib/pleroma/web/activity_pub/mrf.ex
@@ -5,16 +5,34 @@
defmodule Pleroma.Web.ActivityPub.MRF do
@callback filter(Map.t()) :: {:ok | :reject, Map.t()}
- def filter(policies, %{} = object) do
+ def filter(policies, %{} = message) do
policies
- |> Enum.reduce({:ok, object}, fn
- policy, {:ok, object} -> policy.filter(object)
+ |> Enum.reduce({:ok, message}, fn
+ policy, {:ok, message} -> policy.filter(message)
_, error -> error
end)
end
def filter(%{} = object), do: get_policies() |> filter(object)
+ def pipeline_filter(%{} = message, meta) do
+ object = meta[:object_data]
+ ap_id = message["object"]
+
+ if object && ap_id do
+ with {:ok, message} <- filter(Map.put(message, "object", object)) do
+ meta = Keyword.put(meta, :object_data, message["object"])
+ {:ok, Map.put(message, "object", ap_id), meta}
+ else
+ {err, message} -> {err, message, meta}
+ end
+ else
+ {err, message} = filter(message)
+
+ {err, message, meta}
+ end
+ end
+
def get_policies do
Pleroma.Config.get([:mrf, :policies], []) |> get_policies()
end
diff --git a/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex b/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex
@@ -28,8 +28,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.SubchainPolicy do
}"
)
- subchain
- |> MRF.filter(message)
+ MRF.filter(subchain, message)
else
_e -> {:ok, message}
end
diff --git a/lib/pleroma/web/activity_pub/pipeline.ex b/lib/pleroma/web/activity_pub/pipeline.ex
@@ -26,13 +26,17 @@ defmodule Pleroma.Web.ActivityPub.Pipeline do
{:error, e} ->
{:error, e}
+
+ {:reject, e} ->
+ {:reject, e}
end
end
def do_common_pipeline(object, meta) do
with {_, {:ok, validated_object, meta}} <-
{:validate_object, ObjectValidator.validate(object, meta)},
- {_, {:ok, mrfd_object}} <- {:mrf_object, MRF.filter(validated_object)},
+ {_, {:ok, mrfd_object, meta}} <-
+ {:mrf_object, MRF.pipeline_filter(validated_object, meta)},
{_, {:ok, activity, meta}} <-
{:persist_object, ActivityPub.persist(mrfd_object, meta)},
{_, {:ok, activity, meta}} <-
@@ -40,7 +44,7 @@ defmodule Pleroma.Web.ActivityPub.Pipeline do
{_, {:ok, _}} <- {:federation, maybe_federate(activity, meta)} do
{:ok, activity, meta}
else
- {:mrf_object, {:reject, _}} -> {:ok, nil, meta}
+ {:mrf_object, {:reject, message, _}} -> {:reject, message}
e -> {:error, e}
end
end
diff --git a/test/web/activity_pub/pipeline_test.exs b/test/web/activity_pub/pipeline_test.exs
@@ -26,7 +26,7 @@ defmodule Pleroma.Web.ActivityPub.PipelineTest do
{
Pleroma.Web.ActivityPub.MRF,
[],
- [filter: fn o -> {:ok, o} end]
+ [pipeline_filter: fn o, m -> {:ok, o, m} end]
},
{
Pleroma.Web.ActivityPub.ActivityPub,
@@ -51,7 +51,7 @@ defmodule Pleroma.Web.ActivityPub.PipelineTest do
Pleroma.Web.ActivityPub.Pipeline.common_pipeline(activity, meta)
assert_called(Pleroma.Web.ActivityPub.ObjectValidator.validate(activity, meta))
- assert_called(Pleroma.Web.ActivityPub.MRF.filter(activity))
+ assert_called(Pleroma.Web.ActivityPub.MRF.pipeline_filter(activity, meta))
assert_called(Pleroma.Web.ActivityPub.ActivityPub.persist(activity, meta))
assert_called(Pleroma.Web.ActivityPub.SideEffects.handle(activity, meta))
refute called(Pleroma.Web.Federator.publish(activity))
@@ -68,7 +68,7 @@ defmodule Pleroma.Web.ActivityPub.PipelineTest do
{
Pleroma.Web.ActivityPub.MRF,
[],
- [filter: fn o -> {:ok, o} end]
+ [pipeline_filter: fn o, m -> {:ok, o, m} end]
},
{
Pleroma.Web.ActivityPub.ActivityPub,
@@ -93,7 +93,7 @@ defmodule Pleroma.Web.ActivityPub.PipelineTest do
Pleroma.Web.ActivityPub.Pipeline.common_pipeline(activity, meta)
assert_called(Pleroma.Web.ActivityPub.ObjectValidator.validate(activity, meta))
- assert_called(Pleroma.Web.ActivityPub.MRF.filter(activity))
+ assert_called(Pleroma.Web.ActivityPub.MRF.pipeline_filter(activity, meta))
assert_called(Pleroma.Web.ActivityPub.ActivityPub.persist(activity, meta))
assert_called(Pleroma.Web.ActivityPub.SideEffects.handle(activity, meta))
assert_called(Pleroma.Web.Federator.publish(activity))
@@ -109,7 +109,7 @@ defmodule Pleroma.Web.ActivityPub.PipelineTest do
{
Pleroma.Web.ActivityPub.MRF,
[],
- [filter: fn o -> {:ok, o} end]
+ [pipeline_filter: fn o, m -> {:ok, o, m} end]
},
{
Pleroma.Web.ActivityPub.ActivityPub,
@@ -131,7 +131,7 @@ defmodule Pleroma.Web.ActivityPub.PipelineTest do
Pleroma.Web.ActivityPub.Pipeline.common_pipeline(activity, meta)
assert_called(Pleroma.Web.ActivityPub.ObjectValidator.validate(activity, meta))
- assert_called(Pleroma.Web.ActivityPub.MRF.filter(activity))
+ assert_called(Pleroma.Web.ActivityPub.MRF.pipeline_filter(activity, meta))
assert_called(Pleroma.Web.ActivityPub.ActivityPub.persist(activity, meta))
assert_called(Pleroma.Web.ActivityPub.SideEffects.handle(activity, meta))
end
@@ -148,7 +148,7 @@ defmodule Pleroma.Web.ActivityPub.PipelineTest do
{
Pleroma.Web.ActivityPub.MRF,
[],
- [filter: fn o -> {:ok, o} end]
+ [pipeline_filter: fn o, m -> {:ok, o, m} end]
},
{
Pleroma.Web.ActivityPub.ActivityPub,
@@ -170,7 +170,7 @@ defmodule Pleroma.Web.ActivityPub.PipelineTest do
Pleroma.Web.ActivityPub.Pipeline.common_pipeline(activity, meta)
assert_called(Pleroma.Web.ActivityPub.ObjectValidator.validate(activity, meta))
- assert_called(Pleroma.Web.ActivityPub.MRF.filter(activity))
+ assert_called(Pleroma.Web.ActivityPub.MRF.pipeline_filter(activity, meta))
assert_called(Pleroma.Web.ActivityPub.ActivityPub.persist(activity, meta))
assert_called(Pleroma.Web.ActivityPub.SideEffects.handle(activity, meta))
end
diff --git a/test/web/pleroma_api/controllers/chat_controller_test.exs b/test/web/pleroma_api/controllers/chat_controller_test.exs
@@ -126,6 +126,23 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest do
assert result["attachment"]
end
+
+ test "gets MRF reason when rejected", %{conn: conn, user: user} do
+ clear_config([:mrf_keyword, :reject], ["GNO"])
+ clear_config([:mrf, :policies], [Pleroma.Web.ActivityPub.MRF.KeywordPolicy])
+
+ other_user = insert(:user)
+
+ {:ok, chat} = Chat.get_or_create(user.id, other_user.ap_id)
+
+ result =
+ conn
+ |> put_req_header("content-type", "application/json")
+ |> post("/api/v1/pleroma/chats/#{chat.id}/messages", %{"content" => "GNO/Linux"})
+ |> json_response_and_validate_schema(200)
+
+ assert result == %{}
+ end
end
describe "DELETE /api/v1/pleroma/chats/:id/messages/:message_id" do
