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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.MRFTest do
   6   use ExUnit.Case, async: true
   7   use Pleroma.Tests.Helpers
   8   alias Pleroma.Web.ActivityPub.MRF
   9
  10   test "subdomains_regex/1" do
  11     assert MRF.subdomains_regex(["unsafe.tld", "*.unsafe.tld"]) == [
  12              ~r/^(.+\.)?unsafe\.tld$/i,
  13              ~r/^(.+\.)?unsafe\.tld$/i
  14            ]
  15   end
  16
  17   describe "subdomain_match/2" do
  18     test "common domains" do
  19       regexes = MRF.subdomains_regex(["unsafe.tld", "unsafe2.tld"])
  20
  21       assert regexes == [~r/^(.+\.)?unsafe\.tld$/i, ~r/^(.+\.)?unsafe2\.tld$/i]
  22
  23       assert MRF.subdomain_match?(regexes, "unsafe.tld")
  24       assert MRF.subdomain_match?(regexes, "unsafe2.tld")
  25
  26       refute MRF.subdomain_match?(regexes, "example.com")
  27     end
  28
  29     test "wildcard domains with one subdomain" do
  30       regexes = MRF.subdomains_regex(["unsafe.tld"])
  31
  32       assert regexes == [~r/^(.+\.)?unsafe\.tld$/i]
  33
  34       assert MRF.subdomain_match?(regexes, "unsafe.tld")
  35       assert MRF.subdomain_match?(regexes, "sub.unsafe.tld")
  36       refute MRF.subdomain_match?(regexes, "anotherunsafe.tld")
  37       refute MRF.subdomain_match?(regexes, "unsafe.tldanother")
  38     end
  39
  40     test "wildcard domains with two subdomains" do
  41       regexes = MRF.subdomains_regex(["unsafe.tld"])
  42
  43       assert regexes == [~r/^(.+\.)?unsafe\.tld$/i]
  44
  45       assert MRF.subdomain_match?(regexes, "unsafe.tld")
  46       assert MRF.subdomain_match?(regexes, "sub.sub.unsafe.tld")
  47       refute MRF.subdomain_match?(regexes, "sub.anotherunsafe.tld")
  48       refute MRF.subdomain_match?(regexes, "sub.unsafe.tldanother")
  49     end
  50
  51     test "wildcard on the tld" do
  52       regexes = MRF.subdomains_regex(["somewhere.*"])
  53
  54       assert regexes == [~r/^(.+\.)?somewhere\.(.+)$/i]
  55
  56       assert MRF.subdomain_match?(regexes, "somewhere.net")
  57       assert MRF.subdomain_match?(regexes, "somewhere.com")
  58       assert MRF.subdomain_match?(regexes, "somewhere.somewherelese.net")
  59       refute MRF.subdomain_match?(regexes, "somewhere")
  60     end
  61
  62     test "wildcards on subdomain _and_ tld" do
  63       regexes = MRF.subdomains_regex(["*.somewhere.*"])
  64
  65       assert regexes == [~r/^(.+\.)?somewhere\.(.+)$/i]
  66
  67       assert MRF.subdomain_match?(regexes, "somewhere.net")
  68       assert MRF.subdomain_match?(regexes, "somewhere.com")
  69       assert MRF.subdomain_match?(regexes, "sub.somewhere.net")
  70       assert MRF.subdomain_match?(regexes, "sub.somewhere.com")
  71       assert MRF.subdomain_match?(regexes, "sub.sub.somewhere.net")
  72       assert MRF.subdomain_match?(regexes, "sub.sub.somewhere.com")
  73       refute MRF.subdomain_match?(regexes, "somewhere")
  74     end
  75
  76     test "matches are case-insensitive" do
  77       regexes = MRF.subdomains_regex(["UnSafe.TLD", "UnSAFE2.Tld"])
  78
  79       assert regexes == [~r/^(.+\.)?UnSafe\.TLD$/i, ~r/^(.+\.)?UnSAFE2\.Tld$/i]
  80
  81       assert MRF.subdomain_match?(regexes, "UNSAFE.TLD")
  82       assert MRF.subdomain_match?(regexes, "UNSAFE2.TLD")
  83       assert MRF.subdomain_match?(regexes, "unsafe.tld")
  84       assert MRF.subdomain_match?(regexes, "unsafe2.tld")
  85
  86       refute MRF.subdomain_match?(regexes, "EXAMPLE.COM")
  87       refute MRF.subdomain_match?(regexes, "example.com")
  88     end
  89   end
  90
  91   describe "instance_list_from_tuples/1" do
  92     test "returns a list of instances from a list of {instance, reason} tuples" do
  93       list = [{"some.tld", "a reason"}, {"other.tld", "another reason"}]
  94       expected = ["some.tld", "other.tld"]
  95
  96       assert MRF.instance_list_from_tuples(list) == expected
  97     end
  98   end
  99
 100   describe "describe/0" do
 101     test "it works as expected with noop policy" do
 102       clear_config([:mrf, :policies], [Pleroma.Web.ActivityPub.MRF.NoOpPolicy])
 103
 104       expected = %{
 105         mrf_policies: ["NoOpPolicy", "HashtagPolicy", "InlineQuotePolicy", "NormalizeMarkup"],
 106         mrf_hashtag: %{
 107           federated_timeline_removal: [],
 108           reject: [],
 109           sensitive: ["nsfw"]
 110         },
 111         exclusions: false
 112       }
 113
 114       {:ok, ^expected} = MRF.describe()
 115     end
 116
 117     test "it works as expected with mock policy" do
 118       clear_config([:mrf, :policies], [MRFModuleMock])
 119
 120       expected = %{
 121         mrf_policies: ["MRFModuleMock", "HashtagPolicy", "InlineQuotePolicy", "NormalizeMarkup"],
 122         mrf_module_mock: "some config data",
 123         mrf_hashtag: %{
 124           federated_timeline_removal: [],
 125           reject: [],
 126           sensitive: ["nsfw"]
 127         },
 128         exclusions: false
 129       }
 130
 131       {:ok, ^expected} = MRF.describe()
 132     end
 133   end
 134
 135   test "config_descriptions/0" do
 136     descriptions = MRF.config_descriptions()
 137
 138     good_mrf = Enum.find(descriptions, fn %{key: key} -> key == :good_mrf end)
 139
 140     assert good_mrf == %{
 141              key: :good_mrf,
 142              related_policy: "Fixtures.Modules.GoodMRF",
 143              label: "Good MRF",
 144              description: "Some description",
 145              group: :pleroma,
 146              tab: :mrf,
 147              type: :group
 148            }
 149   end
 150 end