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| 1 | <?php |
| 2 | |
| 3 | declare( strict_types=1 ); |
| 4 | |
| 5 | /** |
| 6 | * QuestyCaptcha class |
| 7 | * |
| 8 | * @file |
| 9 | * @author Benjamin Lees <emufarmers@gmail.com> |
| 10 | * @ingroup Extensions |
| 11 | */ |
| 12 | |
| 13 | namespace MediaWiki\Extension\ConfirmEdit\QuestyCaptcha; |
| 14 | |
| 15 | use MediaWiki\Auth\AuthenticationRequest; |
| 16 | use MediaWiki\Extension\ConfirmEdit\Auth\CaptchaAuthenticationRequest; |
| 17 | use MediaWiki\Extension\ConfirmEdit\SimpleCaptcha\SimpleCaptcha; |
| 18 | use MediaWiki\Html\Html; |
| 19 | use MediaWiki\Output\OutputPage; |
| 20 | |
| 21 | class QuestyCaptcha extends SimpleCaptcha { |
| 22 | /** |
| 23 | * @var string used for questycaptcha-edit, questycaptcha-addurl, questycaptcha-badlogin, |
| 24 | * questycaptcha-createaccount, questycaptcha-create, questycaptcha-sendemail via getMessage() |
| 25 | */ |
| 26 | protected static $messagePrefix = 'questycaptcha'; |
| 27 | |
| 28 | /** |
| 29 | * Validate a CAPTCHA response |
| 30 | * |
| 31 | * @note Trimming done as per T368112 |
| 32 | * |
| 33 | * @param string $answer |
| 34 | * @param array $info |
| 35 | * @return bool |
| 36 | */ |
| 37 | protected function keyMatch( $answer, $info ) { |
| 38 | if ( is_array( $info['answer'] ) ) { |
| 39 | return in_array( strtolower( trim( $answer ) ), array_map( 'strtolower', $info['answer'] ) ); |
| 40 | } else { |
| 41 | return strtolower( trim( $answer ) ) == strtolower( $info['answer'] ); |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | /** @inheritDoc */ |
| 46 | public function describeCaptchaType( ?string $action = null ) { |
| 47 | return [ |
| 48 | 'type' => 'question', |
| 49 | 'mime' => 'text/html', |
| 50 | ]; |
| 51 | } |
| 52 | |
| 53 | /** @inheritDoc */ |
| 54 | public function getCaptcha() { |
| 55 | global $wgCaptchaQuestions; |
| 56 | |
| 57 | // Backwards compatibility |
| 58 | if ( $wgCaptchaQuestions === array_values( $wgCaptchaQuestions ) ) { |
| 59 | return $wgCaptchaQuestions[ random_int( 0, count( $wgCaptchaQuestions ) - 1 ) ]; |
| 60 | } |
| 61 | |
| 62 | $question = array_rand( $wgCaptchaQuestions, 1 ); |
| 63 | $answer = $wgCaptchaQuestions[ $question ]; |
| 64 | return [ 'question' => $question, 'answer' => $answer ]; |
| 65 | } |
| 66 | |
| 67 | /** @inheritDoc */ |
| 68 | public function getFormInformation( $tabIndex = 1, ?OutputPage $out = null ) { |
| 69 | $captcha = $this->getCaptcha(); |
| 70 | if ( !$captcha ) { |
| 71 | die( |
| 72 | "No questions found; set some in LocalSettings.php using the format from QuestyCaptcha.php." |
| 73 | ); |
| 74 | } |
| 75 | $index = $this->storeCaptcha( $captcha ); |
| 76 | return [ |
| 77 | 'html' => "<p><label for=\"wpCaptchaWord\">{$captcha['question']}</label> " . |
| 78 | Html::element( 'input', [ |
| 79 | 'name' => 'wpCaptchaWord', |
| 80 | 'id' => 'wpCaptchaWord', |
| 81 | 'required', |
| 82 | 'autocomplete' => 'off', |
| 83 | // tab in before the edit textarea |
| 84 | 'tabindex' => $tabIndex ] |
| 85 | ) . "</p>\n" . |
| 86 | Html::element( 'input', [ |
| 87 | 'type' => 'hidden', |
| 88 | 'name' => 'wpCaptchaId', |
| 89 | 'id' => 'wpCaptchaId', |
| 90 | 'value' => $index ] |
| 91 | ) |
| 92 | ]; |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * @param array $captchaData |
| 97 | * @param string $id |
| 98 | * @return mixed |
| 99 | */ |
| 100 | public function getCaptchaInfo( $captchaData, $id ) { |
| 101 | return $captchaData['question']; |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * @param array $requests |
| 106 | * @param array $fieldInfo |
| 107 | * @param array &$formDescriptor |
| 108 | * @param string $action |
| 109 | */ |
| 110 | public function onAuthChangeFormFields( array $requests, array $fieldInfo, |
| 111 | array &$formDescriptor, $action ) { |
| 112 | /** @var CaptchaAuthenticationRequest $req */ |
| 113 | $req = |
| 114 | AuthenticationRequest::getRequestByClass( |
| 115 | $requests, |
| 116 | CaptchaAuthenticationRequest::class, |
| 117 | true |
| 118 | ); |
| 119 | if ( !$req ) { |
| 120 | return; |
| 121 | } |
| 122 | |
| 123 | // declare RAW HTML output. |
| 124 | $formDescriptor['captchaInfo']['raw'] = true; |
| 125 | $formDescriptor['captchaWord']['label-message'] = null; |
| 126 | } |
| 127 | } |