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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 CAPTCHA"} == 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     end
  82
  83     test "doesn't validate invalid answer" do
  84       Pleroma.Config.put([Pleroma.Captcha, :enabled], true)
  85
  86       new = Captcha.new()
  87
  88       assert %{
  89                answer_data: answer,
  90                token: token
  91              } = new
  92
  93       assert is_binary(answer)
  94
  95       assert {:error, "Invalid answer data"} =
  96                Captcha.validate(token, "63615261b77f5354fb8c4e4986477555", answer <> "foobar")
  97     end
  98
  99     test "nil answer_data" do
 100       Pleroma.Config.put([Pleroma.Captcha, :enabled], true)
 101
 102       new = Captcha.new()
 103
 104       assert %{
 105                answer_data: answer,
 106                token: token
 107              } = new
 108
 109       assert is_binary(answer)
 110
 111       assert {:error, "Invalid answer data"} =
 112                Captcha.validate(token, "63615261b77f5354fb8c4e4986477555", nil)
 113     end
 114   end
 115 end