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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.CaptchaTest do
   6   use Pleroma.DataCase
   7
   8   import Tesla.Mock
   9
  10   alias Pleroma.Captcha
  11   alias Pleroma.Captcha.Kocaptcha
  12   alias Pleroma.Captcha.Native
  13
  14   @ets_options [:ordered_set, :private, :named_table, {:read_concurrency, true}]
  15   setup do: clear_config([Pleroma.Captcha, :enabled])
  16
  17   describe "Kocaptcha" do
  18     setup do
  19       ets_name = Kocaptcha.Ets
  20       ^ets_name = :ets.new(ets_name, @ets_options)
  21
  22       mock(fn
  23         %{method: :get, url: "https://captcha.kotobank.ch/new"} ->
  24           json(%{
  25             md5: "63615261b77f5354fb8c4e4986477555",
  26             token: "afa1815e14e29355e6c8f6b143a39fa2",
  27             url: "/captchas/afa1815e14e29355e6c8f6b143a39fa2.png"
  28           })
  29       end)
  30
  31       :ok
  32     end
  33
  34     test "new and validate" do
  35       new = Kocaptcha.new()
  36
  37       token = "afa1815e14e29355e6c8f6b143a39fa2"
  38       url = "https://captcha.kotobank.ch/captchas/afa1815e14e29355e6c8f6b143a39fa2.png"
  39
  40       assert %{
  41                answer_data: answer,
  42                token: ^token,
  43                url: ^url,
  44                type: :kocaptcha
  45              } = new
  46
  47       assert Kocaptcha.validate(token, "7oEy8c", answer) == :ok
  48     end
  49   end
  50
  51   describe "Native" do
  52     test "new and validate" do
  53       new = Native.new()
  54
  55       assert %{
  56                answer_data: answer,
  57                token: token,
  58                type: :native,
  59                url: "data:image/png;base64," <> _
  60              } = new
  61
  62       assert is_binary(answer)
  63       assert :ok = Native.validate(token, answer, answer)
  64       assert {:error, :invalid} == Native.validate(token, answer, answer <> "foobar")
  65     end
  66   end
  67
  68   describe "Captcha Wrapper" do
  69     test "validate" do
  70       Pleroma.Config.put([Pleroma.Captcha, :enabled], true)
  71
  72       new = Captcha.new()
  73
  74       assert %{
  75                answer_data: answer,
  76                token: token
  77              } = new
  78
  79       assert is_binary(answer)
  80       assert :ok = Captcha.validate(token, "63615261b77f5354fb8c4e4986477555", answer)
  81       Cachex.del(:used_captcha_cache, token)
  82     end
  83
  84     test "doesn't validate invalid answer" do
  85       Pleroma.Config.put([Pleroma.Captcha, :enabled], true)
  86
  87       new = Captcha.new()
  88
  89       assert %{
  90                answer_data: answer,
  91                token: token
  92              } = new
  93
  94       assert is_binary(answer)
  95
  96       assert {:error, :invalid_answer_data} =
  97                Captcha.validate(token, "63615261b77f5354fb8c4e4986477555", answer <> "foobar")
  98     end
  99
 100     test "nil answer_data" do
 101       Pleroma.Config.put([Pleroma.Captcha, :enabled], true)
 102
 103       new = Captcha.new()
 104
 105       assert %{
 106                answer_data: answer,
 107                token: token
 108              } = new
 109
 110       assert is_binary(answer)
 111
 112       assert {:error, :invalid_answer_data} =
 113                Captcha.validate(token, "63615261b77f5354fb8c4e4986477555", nil)
 114     end
 115   end
 116 end