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diff --git a/changelog.d/follow-validator.fix b/changelog.d/follow-validator.fix
new file mode 100644
index 000000000..d49932b7b
--- /dev/null
+++ b/changelog.d/follow-validator.fix
@@ -0,0 +1 @@
+Improve the FollowValidator to successfully incoming activities with an errant cc field.
diff --git a/lib/pleroma/web/activity_pub/object_validators/accept_reject_validator.ex b/lib/pleroma/web/activity_pub/object_validators/accept_reject_validator.ex
index d611da051..03ab83347 100644
--- a/lib/pleroma/web/activity_pub/object_validators/accept_reject_validator.ex
+++ b/lib/pleroma/web/activity_pub/object_validators/accept_reject_validator.ex
@@ -1,56 +1,56 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.ObjectValidators.AcceptRejectValidator do
use Ecto.Schema
alias Pleroma.Activity
import Ecto.Changeset
import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
@primary_key false
embedded_schema do
quote do
unquote do
import Elixir.Pleroma.Web.ActivityPub.ObjectValidators.CommonFields
message_fields()
activity_fields()
end
end
end
def cast_data(data) do
%__MODULE__{}
|> cast(data, __schema__(:fields))
end
defp validate_data(cng) do
cng
- |> validate_required([:id, :type, :actor, :to, :cc, :object])
+ |> validate_required([:id, :type, :actor, :to, :object])
|> validate_inclusion(:type, ["Accept", "Reject"])
|> validate_actor_presence()
|> validate_object_presence(allowed_types: ["Follow"])
|> validate_accept_reject_rights()
end
def cast_and_validate(data) do
data
|> cast_data
|> validate_data
end
def validate_accept_reject_rights(cng) do
with object_id when is_binary(object_id) <- get_field(cng, :object),
%Activity{data: %{"object" => followed_actor}} <- Activity.get_by_ap_id(object_id),
true <- followed_actor == get_field(cng, :actor) do
cng
else
_e ->
cng
|> add_error(:actor, "can't accept or reject the given activity")
end
end
end
diff --git a/lib/pleroma/web/activity_pub/object_validators/block_validator.ex b/lib/pleroma/web/activity_pub/object_validators/block_validator.ex
index 0de87a27e..98340545c 100644
--- a/lib/pleroma/web/activity_pub/object_validators/block_validator.ex
+++ b/lib/pleroma/web/activity_pub/object_validators/block_validator.ex
@@ -1,43 +1,43 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.ObjectValidators.BlockValidator do
use Ecto.Schema
alias Elixir.Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
import Ecto.Changeset
@primary_key false
@derive Jason.Encoder
embedded_schema do
quote do
unquote do
import Elixir.Pleroma.Web.ActivityPub.ObjectValidators.CommonFields
message_fields()
activity_fields()
end
end
end
def cast_data(data) do
%__MODULE__{}
|> cast(data, __schema__(:fields))
end
defp validate_data(cng) do
cng
- |> validate_required([:id, :type, :actor, :to, :cc, :object])
+ |> validate_required([:id, :type, :actor, :to, :object])
|> validate_inclusion(:type, ["Block"])
|> CommonValidations.validate_actor_presence()
|> CommonValidations.validate_actor_presence(field_name: :object)
end
def cast_and_validate(data) do
data
|> cast_data
|> validate_data
end
end
diff --git a/lib/pleroma/web/activity_pub/object_validators/follow_validator.ex b/lib/pleroma/web/activity_pub/object_validators/follow_validator.ex
index b3ca5b691..e4e97bf72 100644
--- a/lib/pleroma/web/activity_pub/object_validators/follow_validator.ex
+++ b/lib/pleroma/web/activity_pub/object_validators/follow_validator.ex
@@ -1,44 +1,44 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.ObjectValidators.FollowValidator do
use Ecto.Schema
import Ecto.Changeset
import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
@primary_key false
embedded_schema do
quote do
unquote do
import Elixir.Pleroma.Web.ActivityPub.ObjectValidators.CommonFields
message_fields()
activity_fields()
end
end
field(:state, :string, default: "pending")
end
def cast_data(data) do
%__MODULE__{}
|> cast(data, __schema__(:fields))
end
defp validate_data(cng) do
cng
- |> validate_required([:id, :type, :actor, :to, :cc, :object])
+ |> validate_required([:id, :type, :actor, :to, :object])
|> validate_inclusion(:type, ["Follow"])
|> validate_inclusion(:state, ~w{pending reject accept})
|> validate_actor_presence()
|> validate_actor_presence(field_name: :object)
end
def cast_and_validate(data) do
data
|> cast_data
|> validate_data
end
end
diff --git a/test/pleroma/web/activity_pub/object_validators/follow_validation_test.exs b/test/pleroma/web/activity_pub/object_validators/follow_validation_test.exs
index 371368e0e..acf6e8d8f 100644
--- a/test/pleroma/web/activity_pub/object_validators/follow_validation_test.exs
+++ b/test/pleroma/web/activity_pub/object_validators/follow_validation_test.exs
@@ -1,26 +1,36 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.ObjectValidators.FollowValidationTest do
use Pleroma.DataCase, async: true
alias Pleroma.Web.ActivityPub.Builder
alias Pleroma.Web.ActivityPub.ObjectValidator
import Pleroma.Factory
describe "Follows" do
setup do
follower = insert(:user)
followed = insert(:user)
{:ok, valid_follow, []} = Builder.follow(follower, followed)
%{follower: follower, followed: followed, valid_follow: valid_follow}
end
test "validates a basic follow object", %{valid_follow: valid_follow} do
assert {:ok, _follow, []} = ObjectValidator.validate(valid_follow, [])
end
+
+ test "supports a nil cc", %{valid_follow: valid_follow} do
+ valid_follow_with_nil_cc = Map.put(valid_follow, "cc", nil)
+ assert {:ok, _follow, []} = ObjectValidator.validate(valid_follow_with_nil_cc, [])
+ end
+
+ test "supports an empty cc", %{valid_follow: valid_follow} do
+ valid_follow_with_empty_cc = Map.put(valid_follow, "cc", [])
+ assert {:ok, _follow, []} = ObjectValidator.validate(valid_follow_with_empty_cc, [])
+ end
end
end

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