Merge branch 'feature/mention-mrf' into 'develop'

Add MRF MentionPolicy for dropping posts which mention specific actors

See merge request pleroma/pleroma!1439

test/web/activity_pub/mrf/mention_policy_test.exs

@@ -0,0 +1,92 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.MentionPolicyTest do
+  use Pleroma.DataCase
+
+  alias Pleroma.Web.ActivityPub.MRF.MentionPolicy
+
+  test "pass filter if allow list is empty" do
+    Pleroma.Config.delete([:mrf_mention])
+
+    message = %{
+      "type" => "Create",
+      "to" => ["https://example.com/ok"],
+      "cc" => ["https://example.com/blocked"]
+    }
+
+    assert MentionPolicy.filter(message) == {:ok, message}
+  end
+
+  describe "allow" do
+    test "empty" do
+      Pleroma.Config.put([:mrf_mention], %{actors: ["https://example.com/blocked"]})
+
+      message = %{
+        "type" => "Create"
+      }
+
+      assert MentionPolicy.filter(message) == {:ok, message}
+    end
+
+    test "to" do
+      Pleroma.Config.put([:mrf_mention], %{actors: ["https://example.com/blocked"]})
+
+      message = %{
+        "type" => "Create",
+        "to" => ["https://example.com/ok"]
+      }
+
+      assert MentionPolicy.filter(message) == {:ok, message}
+    end
+
+    test "cc" do
+      Pleroma.Config.put([:mrf_mention], %{actors: ["https://example.com/blocked"]})
+
+      message = %{
+        "type" => "Create",
+        "cc" => ["https://example.com/ok"]
+      }
+
+      assert MentionPolicy.filter(message) == {:ok, message}
+    end
+
+    test "both" do
+      Pleroma.Config.put([:mrf_mention], %{actors: ["https://example.com/blocked"]})
+
+      message = %{
+        "type" => "Create",
+        "to" => ["https://example.com/ok"],
+        "cc" => ["https://example.com/ok2"]
+      }
+
+      assert MentionPolicy.filter(message) == {:ok, message}
+    end
+  end
+
+  describe "deny" do
+    test "to" do
+      Pleroma.Config.put([:mrf_mention], %{actors: ["https://example.com/blocked"]})
+
+      message = %{
+        "type" => "Create",
+        "to" => ["https://example.com/blocked"]
+      }
+
+      assert MentionPolicy.filter(message) == {:reject, nil}
+    end
+
+    test "cc" do
+      Pleroma.Config.put([:mrf_mention], %{actors: ["https://example.com/blocked"]})
+
+      message = %{
+        "type" => "Create",
+        "to" => ["https://example.com/ok"],
+        "cc" => ["https://example.com/blocked"]
+      }
+
+      assert MentionPolicy.filter(message) == {:reject, nil}
+    end
+  end
+end