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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.ActivityPub.MRF.HellthreadPolicyTest do
   6   use Pleroma.DataCase
   7   import Pleroma.Factory
   8
   9   import Pleroma.Web.ActivityPub.MRF.HellthreadPolicy
  10
  11   setup do
  12     user = insert(:user)
  13
  14     message = %{
  15       "actor" => user.ap_id,
  16       "cc" => [user.follower_address],
  17       "type" => "Create",
  18       "to" => [
  19         "https://www.w3.org/ns/activitystreams#Public",
  20         "https://instance.tld/users/user1",
  21         "https://instance.tld/users/user2",
  22         "https://instance.tld/users/user3"
  23       ],
  24       "object" => %{
  25         "type" => "Note"
  26       }
  27     }
  28
  29     [user: user, message: message]
  30   end
  31
  32   setup do: clear_config(:mrf_hellthread)
  33
  34   describe "reject" do
  35     test "rejects the message if the recipient count is above reject_threshold", %{
  36       message: message
  37     } do
  38       clear_config([:mrf_hellthread], %{delist_threshold: 0, reject_threshold: 2})
  39
  40       assert {:reject, "[HellthreadPolicy] 3 recipients is over the limit of 2"} ==
  41                filter(message)
  42     end
  43
  44     test "does not reject the message if the recipient count is below reject_threshold", %{
  45       message: message
  46     } do
  47       clear_config([:mrf_hellthread], %{delist_threshold: 0, reject_threshold: 3})
  48
  49       assert {:ok, ^message} = filter(message)
  50     end
  51   end
  52
  53   describe "delist" do
  54     test "delists the message if the recipient count is above delist_threshold", %{
  55       user: user,
  56       message: message
  57     } do
  58       clear_config([:mrf_hellthread], %{delist_threshold: 2, reject_threshold: 0})
  59
  60       {:ok, message} = filter(message)
  61       assert user.follower_address in message["to"]
  62       assert "https://www.w3.org/ns/activitystreams#Public" in message["cc"]
  63     end
  64
  65     test "does not delist the message if the recipient count is below delist_threshold", %{
  66       message: message
  67     } do
  68       clear_config([:mrf_hellthread], %{delist_threshold: 4, reject_threshold: 0})
  69
  70       assert {:ok, ^message} = filter(message)
  71     end
  72   end
  73
  74   test "excludes follower collection and public URI from threshold count", %{message: message} do
  75     clear_config([:mrf_hellthread], %{delist_threshold: 0, reject_threshold: 3})
  76
  77     assert {:ok, ^message} = filter(message)
  78   end
  79 end