| Index: trunk/extensions/ConfirmEdit/ReCaptcha.php |
| — | — | @@ -0,0 +1,139 @@ |
| | 2 | +<?php
|
| | 3 | +
|
| | 4 | +/**
|
| | 5 | + * Captcha class using the reCAPTCHA widget.
|
| | 6 | + * Stop Spam. Read Books.
|
| | 7 | + *
|
| | 8 | + * @addtogroup Extensions
|
| | 9 | + * @author Mike Crawford <mike.crawford@gmail.com>
|
| | 10 | + * @copyright Copyright (c) 2007 reCAPTCHA -- http://recaptcha.net
|
| | 11 | + * @licence MIT/X11
|
| | 12 | + */
|
| | 13 | +
|
| | 14 | +if( !defined( 'MEDIAWIKI' ) ) {
|
| | 15 | + exit;
|
| | 16 | +}
|
| | 17 | +
|
| | 18 | +$wgExtensionMessagesFiles['ReCaptcha'] = dirname( __FILE__ ) . '/ReCaptcha.i18n.php';
|
| | 19 | +
|
| | 20 | +require_once( 'recaptchalib.php' );
|
| | 21 | +
|
| | 22 | +// Set these in LocalSettings.php
|
| | 23 | +$wgReCaptchaPublicKey = '';
|
| | 24 | +$wgReCaptchaPrivateKey = '';
|
| | 25 | +// For backwards compatibility
|
| | 26 | +$recaptcha_public_key = '';
|
| | 27 | +$recaptcha_private_key = '';
|
| | 28 | +
|
| | 29 | +
|
| | 30 | +/**
|
| | 31 | + * Make sure the keys are defined.
|
| | 32 | + */
|
| | 33 | +function efReCaptcha() {
|
| | 34 | + global $wgReCaptchaPublicKey, $wgReCaptchaPrivateKey;
|
| | 35 | + global $recaptcha_public_key, $recaptcha_private_key;
|
| | 36 | + global $wgServerName;
|
| | 37 | +
|
| | 38 | + // Backwards compatibility
|
| | 39 | + $wgReCaptchaPublicKey == '' ) {
|
| | 40 | + $wgReCaptchaPublicKey = $recaptcha_public_key;
|
| | 41 | + }
|
| | 42 | + if ( $wgReCaptchaPrivateKey == '' ) {
|
| | 43 | + $wgReCaptchaPrivateKey = $recaptcha_private_key;
|
| | 44 | + }
|
| | 45 | +
|
| | 46 | + if ($wgReCaptchaPublicKey == '' || $wgReCaptchaPrivateKey == '') {
|
| | 47 | + die ('You need to set $wgReCaptchaPrivateKey and $wgReCaptchaPublicKey in LocalSettings.php to ' .
|
| | 48 | + "use the reCAPTCHA plugin. You can sign up for a key <a href='" .
|
| | 49 | + htmlentities(recaptcha_get_signup_url ($wgServerName, "mediawiki")) . "'>here</a>.");
|
| | 50 | + }
|
| | 51 | +}
|
| | 52 | +
|
| | 53 | +
|
| | 54 | +class ReCaptcha extends SimpleCaptcha {
|
| | 55 | +
|
| | 56 | + //reCAPTHCA error code returned from recaptcha_check_answer
|
| | 57 | + private $recaptcha_error = null;
|
| | 58 | +
|
| | 59 | +
|
| | 60 | + /**
|
| | 61 | + * Displays the reCAPTCHA widget.
|
| | 62 | + * If $this->recaptcha_error is set, it will display an error in the widget.
|
| | 63 | + *
|
| | 64 | + */
|
| | 65 | + function getForm() {
|
| | 66 | + global $wgReCaptchaPublicKey;
|
| | 67 | + return "<script>var RecaptchaOptions = { tabindex : 1 }; </script> " .
|
| | 68 | + recaptcha_get_html($wgReCaptchaPublicKey, $this->recaptcha_error);
|
| | 69 | + }
|
| | 70 | +
|
| | 71 | +
|
| | 72 | +
|
| | 73 | + /**
|
| | 74 | + * Calls the library function recaptcha_check_answer to verify the users input.
|
| | 75 | + * Sets $this->recaptcha_error if the user is incorrect.
|
| | 76 | + * @return boolean
|
| | 77 | + *
|
| | 78 | + */
|
| | 79 | + function passCaptcha() {
|
| | 80 | + global $wgReCaptchaPrivateKey;
|
| | 81 | + $recaptcha_response = recaptcha_check_answer ($wgReCaptchaPrivateKey,
|
| | 82 | + wfGetIP (),
|
| | 83 | + $_POST['recaptcha_challenge_field'],
|
| | 84 | + $_POST['recaptcha_response_field']);
|
| | 85 | + if (!$recaptcha_response->is_valid) {
|
| | 86 | + $this->recaptcha_error = $recaptcha_response->error;
|
| | 87 | + return false;
|
| | 88 | + }
|
| | 89 | + $recaptcha_error = null;
|
| | 90 | + return true;
|
| | 91 | +
|
| | 92 | + }
|
| | 93 | +
|
| | 94 | +
|
| | 95 | +
|
| | 96 | + /**
|
| | 97 | + * Called on all edit page saves. (EditFilter events)
|
| | 98 | + * @return boolean - true if page save should continue, false if should display Captcha widget.
|
| | 99 | + */
|
| | 100 | + function confirmEdit( $editPage, $newtext, $section ) {
|
| | 101 | + if( $this->shouldCheck( $editPage, $newtext, $section ) ) {
|
| | 102 | +
|
| | 103 | + if (!isset($_POST['recaptcha_response_field'])) {
|
| | 104 | + //User has not yet been presented with Captcha, show the widget.
|
| | 105 | + $editPage->showEditForm( array( &$this, 'editCallback' ) );
|
| | 106 | + return false;
|
| | 107 | + }
|
| | 108 | +
|
| | 109 | + if( $this->passCaptcha() ) {
|
| | 110 | + return true;
|
| | 111 | + } else {
|
| | 112 | + //Try again - show the widget
|
| | 113 | + $editPage->showEditForm( array( &$this, 'editCallback' ) );
|
| | 114 | + return false;
|
| | 115 | + }
|
| | 116 | +
|
| | 117 | + } else {
|
| | 118 | + wfDebug( "ConfirmEdit: no need to show captcha.\n" );
|
| | 119 | + return true;
|
| | 120 | + }
|
| | 121 | + }
|
| | 122 | +
|
| | 123 | +
|
| | 124 | +
|
| | 125 | + /**
|
| | 126 | + * Show a message asking the user to enter a captcha on edit
|
| | 127 | + * The result will be treated as wiki text
|
| | 128 | + *
|
| | 129 | + * @param $action Action being performed
|
| | 130 | + * @return string
|
| | 131 | + */
|
| | 132 | + function getMessage( $action ) {
|
| | 133 | + $name = 'recaptcha-' . $action;
|
| | 134 | + $text = wfMsg( $name );
|
| | 135 | + # Obtain a more tailored message, if possible, otherwise, fall back to
|
| | 136 | + # the default for edits
|
| | 137 | + return wfEmptyMsg( $name, $text ) ? wfMsg( 'recaptcha-edit' ) : $text;
|
| | 138 | + }
|
| | 139 | +
|
| | 140 | +}
|
| Index: trunk/extensions/ConfirmEdit/ReCaptcha.i18n.php |
| — | — | @@ -0,0 +1,120 @@ |
| | 2 | +<?php
|
| | 3 | +/**
|
| | 4 | + * Internationalisation file for the ReCaptcha module of the ConfirmEdit
|
| | 5 | + * extension.
|
| | 6 | + *
|
| | 7 | + * @addtogroup Extensions
|
| | 8 | +*/
|
| | 9 | +
|
| | 10 | +$messages = array();
|
| | 11 | +
|
| | 12 | +/* English */
|
| | 13 | +$messages['en'] = array(
|
| | 14 | + 'recaptcha-edit' => 'To help protect against automated edit spam, please type the two words you see in the box below:',
|
| | 15 | + 'recaptcha-addurl' => 'Your edit includes new external links. To help protect against automated
|
| | 16 | +spam, please type the two words you see in the box below:',
|
| | 17 | + 'recaptcha-badpass' => 'To help protect against automated password cracking, please type the two words you see in the box below:',
|
| | 18 | + 'recaptcha-createaccount' => 'To help protect against automated account creation, please type the two words you see in the box below:',
|
| | 19 | + 'recaptcha-createaccount-fail' => "Incorrect or missing reCAPTCHA answer.",
|
| | 20 | + 'recaptcha-create' => 'To help protect against automated page creation, please type the two words you see in the box below:',
|
| | 21 | +
|
| | 22 | +);
|
| | 23 | +
|
| | 24 | +/* French */
|
| | 25 | +$messages['fr'] = array(
|
| | 26 | + 'recaptcha-edit' => "Pour nous protéger des robots, merci d'écrire les deux mots visibles dans le cadre qui suit:",
|
| | 27 | + 'recaptcha-addurl' => "Votre contribution contient des liens vers un site externe. Pour nous protéger des robots, merci d'écrire les deux mots visibles dans le cadre qui suit:",
|
| | 28 | + 'recaptcha-badpass' => "Pour nous protéger des essais automatiques de cassage de mot de passe, merci d'écrire les deux mots visibles dans le cadre qui suit:",
|
| | 29 | + 'recaptcha-createaccount' => "Pour nous protéger des créations automatiques de compte, merci d'écrire les deux mots visibles dans le cadre qui suit:",
|
| | 30 | + 'recaptcha-createaccount-fail' => "Réponse de reCAPTCHA fausse ou manquante.",
|
| | 31 | + 'recaptcha-create' => "Pour nous protéger des créations automatiques de pages, merci d'écrire les deux mots visibles dans le cadre qui suit:",
|
| | 32 | +);
|
| | 33 | +
|
| | 34 | +/* Spanish */
|
| | 35 | +$message['es'] = array(
|
| | 36 | + 'recaptcha-edit' => 'Para protegernos de los robots, escribid por favor las dos palabras visibles en el cuadro abajo:',
|
| | 37 | + 'recaptcha-addurl' => 'Su aportación contiene enlaces externos. Para protegernos de los robots, escribid por favor las dos palabras visibles en el cuadro abajo:',
|
| | 38 | + 'recaptcha-badpass' => 'Para protegernos de los robots que intentan adivinar contraseñas, escribid por favor las dos palabras visibles en el cuadro abajo:',
|
| | 39 | + 'recaptcha-createaccount' => 'Para protegernos de la creación automática de cuentas, escribid por favor las dos palabras visibles en el cuadro abajo:',
|
| | 40 | + 'recaptcha-createaccount-fail' => "La respuesta al reCAPTCHA esta falsa o faltante.",
|
| | 41 | + 'recaptcha-create' => 'Para protegernos de la creación automática de páginas, escribid por favor las dos palabras visibles en el cuadro abajo:',
|
| | 42 | +);
|
| | 43 | +
|
| | 44 | +/* Polish */
|
| | 45 | +$messages['pl'] = array(
|
| | 46 | + 'recaptcha-edit' => 'Aby uchronić nas przed robotami, proszę wpisać dwa widoczne słowa w poniższym polu:',
|
| | 47 | + 'recaptcha-addurl' => 'Twoja edycja zawiera linki zewnętrzne. Aby uchronić nas przed robotami, proszę wpisać dwa widoczne słowa w poniższym polu:',
|
| | 48 | + 'recaptcha-badpass' => 'Aby uchronić nas przed złamaniem automatycznym haseł, proszę wpisać dwa widoczne słowa w poniższym polu:',
|
| | 49 | + 'recaptcha-createaccount' => 'Aby uchronić nas przed automatycznym stworzeniem użytkowników, proszę wpisać dwa widoczne słowa w poniższym polu:',
|
| | 50 | + 'recaptcha-createaccount-fail' => "Odpowiedź na reCAPTCHA jest fałszywa lub brakująca.",
|
| | 51 | + 'recaptcha-create' => 'Aby uchronić nas przed tworzeniem stron przez robotów, proszę wpisać dwa widoczne słowa w poniższym polu:',
|
| | 52 | +);
|
| | 53 | +
|
| | 54 | +/* German */
|
| | 55 | +$messages['de'] = array(
|
| | 56 | + 'recaptcha-edit' => 'Zum Schutz vor automatisiertem Spam, gib bitte die beiden folgenden Wörter in das untenstehende Feld ein:',
|
| | 57 | + 'recaptcha-addurl' => 'Deine Bearbeitung enthält neue externe Links. Zum Schutz vor automatisiertem Spam gebe bitte die beiden folgenden Wörter in das untenstehende Feld ein:',
|
| | 58 | + 'recaptcha-badpass' => 'Zum Schutz gegen automatisiertes Knacken von Passwörtern, gebe bitte die beiden folgenden Wörter in das untenstehende Feld ein:',
|
| | 59 | + 'recaptcha-createaccount' => 'Zum Schutz gegen automatisierte Erstellung von Benutzerkonten gebe bitte die beiden folgenden Wörter in das untenstehende Feld ein:',
|
| | 60 | + 'recaptcha-createaccount-fail' => "Fehlerhafte oder fehlende reCAPTCHA Antwort.",
|
| | 61 | + 'recaptcha-create' => 'Zum Schutz gegen automatisierte Erstellung von Seiten gebe bitte die beiden folgenden Wörter in das untenstehende Feld ein:',
|
| | 62 | +);
|
| | 63 | +
|
| | 64 | +/* Portuguese */
|
| | 65 | +$messages['pt'] = array(
|
| | 66 | + 'recaptcha-edit' => 'Para proteger-nos de spam, por favor escreva as duas palavras visíveis abaixo:',
|
| | 67 | + 'recaptcha-addurl' => 'A sua edição contem ligações externas. Para proteger-nos de spam, por favor escreva as duas palavras visíveis abaixo:',
|
| | 68 | + 'recaptcha-badpass' => 'Para proteger-nos de robots que tentam adivinhar senhas, por favor escreva as duas palavras visíveis abaixo:',
|
| | 69 | + 'recaptcha-createaccount' => 'Para proteger-nos de criação automática de contas, por favor escreva as duas palavras visíveis abaixo:',
|
| | 70 | + 'recaptcha-createaccount-fail' => "A resposta ao reCAPTCHA é errada.",
|
| | 71 | + 'recaptcha-create' => 'Para proteger-nos da criação automática de páginas, por favor escreva as duas palavras visíveis abaixo:',
|
| | 72 | +);
|
| | 73 | +
|
| | 74 | +/* Brazilian Portuguese */
|
| | 75 | +$messages['pt_br'] = array(
|
| | 76 | + 'recaptcha-edit' => 'Para ajudar a prevenir contra vandalismos, por favor digite as duas palavras que voc&ecirc; v&ecirc; na caixa abaixo:',
|
| | 77 | + 'recaptcha-addurl' => 'A sua edi&ccedil;&atilde;o inclui liga&ccedil;&otilde;es externas. Para ajudar a prevenir contra vandalismos, por favor digite as duas palavras que voc&ecirc; v&ecirc; na caixa abaixo:',
|
| | 78 | + 'recaptcha-badpass' => 'Para ajudar a prevenir contra tentativas de desbloquear senhas, por favor digite as duas palavras que voc&ecirc; v&ecirc; na caixa abaixo:',
|
| | 79 | + 'recaptcha-createaccount' => 'Para ajudar a prevenir contra cria&ccedil;&atilde;o automatizada de usu&aacute;rios, por favor digite as duas palavras que voc&ecirc; v&ecirc; na caixa abaixo:',
|
| | 80 | + 'recaptcha-createaccount-fail' => "Resposta incorreta ao reCAPTCHA.",
|
| | 81 | + 'recaptcha-create' => 'Para ajudar a prevenir contra cria&ccedil;&atilde;o automatizada de p&aacute;ginas, por favor digite as duas palavras que voc&ecirc; v&ecirc; na caixa abaixo:',
|
| | 82 | +);
|
| | 83 | +
|
| | 84 | +/* Swedish */
|
| | 85 | +$messages['sv'] = array(
|
| | 86 | + 'recaptcha-edit' => 'Den här sidan skyddas mot spam-robotar, bevisa att du är en människa genom att skriva de två orden du ser i boxen nedan:',
|
| | 87 | + 'recaptcha-addurl' => 'Din förändring av sidan innehåller nya externa länkar, vilket är typiskt för spam. Bevisa att du är en människa genom att skriva de två orden du ser i boxen nedan:',
|
| | 88 | + 'recaptcha-badpass' => 'För att skydda wikin mot robotar som gissar användares lösenord behöver användare bevisa att de är människor. Skriv ner de två orden som du ser i boxen nedan:',
|
| | 89 | + 'recaptcha-createaccount' => 'För att skydda wikin mot robotar som skapar konton behöver användare bevisa att de är människor. Var vänlig och skriv ner de två orden du ser i boxen nedan:',
|
| | 90 | + 'recaptcha-createaccount-fail' => "Du har angivit ett felaktig svar för reCAPTCHA.",
|
| | 91 | + 'recaptcha-create' => 'För att skydda wikin mot robotar som skapar nya artiklar. Var vänlig och skriv ner de två orden som finns i boxen nedan:',
|
| | 92 | +);
|
| | 93 | +
|
| | 94 | +/* Vietnamese */
|
| | 95 | +$messages['vi'] = array(
|
| | 96 | + 'recaptcha-edit' => 'Để giúp tránh các sửa đổi rác tự động, xin hãy gõ hai từ mà bạn nhìn thấy vào ô dưới đây:',
|
| | 97 | + 'recaptcha-addurl' => 'Sửa đổi của bạn có chứa liên kết ngoài mới. Để giúp tránh các sửa đổi rác tự động, xin hãy gõ hai từ mà bạn nhìn vào ô dưới đây:',
|
| | 98 | + 'recaptcha-badpass' => 'Để giúp tránh bẻ khóa mật khẩu tự động, xin hãy gõ hai từ mà bạn nhìn vào ô dưới đây:',
|
| | 99 | + 'recaptcha-createaccount' => 'Để giúp tránh việc mở tài khoản tự động, xin hãy gõ hai từ mà bạn nhìn vào ô dưới đây:',
|
| | 100 | + 'recaptcha-createaccount-fail' => "Thiếu câu trả lời reCAPTCHA hoặc câu trả lời không đúng.",
|
| | 101 | + 'recaptcha-create' => 'Để giúp tránh việc tạo trang tự động, xin hãy gõ hai từ mà bạn nhìn vào ô dưới đây:',
|
| | 102 | +);
|
| | 103 | +
|
| | 104 | +$messages['he'] = array(
|
| | 105 | + 'recaptcha-edit' => 'אינכם משתמש רשום.כהגנה מפני ספאם אוטומטי, אנא הקלידו את שתי המילים שלהלן. תודה.',
|
| | 106 | + 'recaptcha-addurl' => 'אינכם משתמש רשום.כהגנה מפני ספאם אוטומטי, אנא הקלידו את שתי המילים שלהלן. תודה.',
|
| | 107 | + 'recaptcha-badpass' => 'כהגנה מפני מפצחי סיסמאות אוטומטיים אנא הקלידו את שתי המילים שלהלן:',
|
| | 108 | + 'recaptcha-createaccount' => 'כהגנה מפני יצירת חשבונות פיקטיביים ע"י אוטומטים אנא הקלידו את שתי המילים שלהלן:',
|
| | 109 | + 'recaptcha-createaccount-fail' => 'לא הוקלדו מילות האישור, או שהוקלדו מילים לא נכונות. נסו שנית.',
|
| | 110 | + 'recaptcha-create' => 'אינכם משתמש רשום.כהגנה מפני ספאם אוטומטי, אנא הקלידו את שתי המילים שלהלן. תודה.',
|
| | 111 | +);
|
| | 112 | +
|
| | 113 | +/* Japanese - 日本語 */
|
| | 114 | +$messages['ja'] = array(
|
| | 115 | + 'recaptcha-edit' => '自動編集スパムからの保護のため、下の画像に表示されている２つの言葉を入力 してください。',
|
| | 116 | + 'recaptcha-addurl' => 'あなたの編集は新しい外部リンクを含んでいます。自動スパムからの保護のた め、下の画像に表示されている２つの言葉を入力してください。',
|
| | 117 | + 'recaptcha-badpass' => '自動パスワードクラッキングからの保護のために、下の画像に表示されている２ つの言葉を入力してください。',
|
| | 118 | + 'recaptcha-createaccount' => '自動アカウント登録からの保護のために、下の画像に表示されている２つの言葉 を入力してください。',
|
| | 119 | + 'recaptcha-createaccount-fail' => '入力された文字列が正しくありません。',
|
| | 120 | + 'recaptcha-create' => '自動ページ作成からの保護のために、下の画像に表示されている２つの言葉を入 力してください。',
|
| | 121 | +);
|
| Index: trunk/extensions/ConfirmEdit/recaptchalib.php |
| — | — | @@ -0,0 +1,275 @@ |
| | 2 | +<?php
|
| | 3 | +/*
|
| | 4 | + * This is a PHP library that handles calling reCAPTCHA.
|
| | 5 | + * - Documentation and latest version
|
| | 6 | + * http://recaptcha.net/plugins/php/
|
| | 7 | + * - Get a reCAPTCHA API Key
|
| | 8 | + * http://recaptcha.net/api/getkey
|
| | 9 | + * - Discussion group
|
| | 10 | + * http://groups.google.com/group/recaptcha
|
| | 11 | + *
|
| | 12 | + * Copyright (c) 2007 reCAPTCHA -- http://recaptcha.net
|
| | 13 | + * AUTHORS:
|
| | 14 | + * Mike Crawford
|
| | 15 | + * Ben Maurer
|
| | 16 | + *
|
| | 17 | + * Permission is hereby granted, free of charge, to any person obtaining a copy
|
| | 18 | + * of this software and associated documentation files (the "Software"), to deal
|
| | 19 | + * in the Software without restriction, including without limitation the rights
|
| | 20 | + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
| | 21 | + * copies of the Software, and to permit persons to whom the Software is
|
| | 22 | + * furnished to do so, subject to the following conditions:
|
| | 23 | + *
|
| | 24 | + * The above copyright notice and this permission notice shall be included in
|
| | 25 | + * all copies or substantial portions of the Software.
|
| | 26 | + *
|
| | 27 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
| | 28 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
| | 29 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
| | 30 | + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
| | 31 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
| | 32 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
| | 33 | + * THE SOFTWARE.
|
| | 34 | + */
|
| | 35 | +
|
| | 36 | +/**
|
| | 37 | + * The reCAPTCHA server URL's
|
| | 38 | + */
|
| | 39 | +$recaptcha_api_server = 'http://api.recaptcha.net';
|
| | 40 | +$recaptcha_api_secure_server = 'https://api-secure.recaptcha.net';
|
| | 41 | +$recaptcha_verify_server = 'api-verify.recaptcha.net';
|
| | 42 | +
|
| | 43 | +
|
| | 44 | +/**
|
| | 45 | + * Encodes the given data into a query string format
|
| | 46 | + * @param $data - array of string elements to be encoded
|
| | 47 | + * @return string - encoded request
|
| | 48 | + */
|
| | 49 | +function _recaptcha_qsencode ($data) {
|
| | 50 | + $req = "";
|
| | 51 | + foreach ( $data as $key => $value )
|
| | 52 | + $req .= $key . '=' . urlencode( stripslashes($value) ) . '&';
|
| | 53 | +
|
| | 54 | + // Cut the last '&'
|
| | 55 | + $req=substr($req,0,strlen($req)-1);
|
| | 56 | + return $req;
|
| | 57 | +}
|
| | 58 | +
|
| | 59 | +
|
| | 60 | +
|
| | 61 | +/**
|
| | 62 | + * Submits an HTTP POST to a reCAPTCHA server
|
| | 63 | + * @param string $host
|
| | 64 | + * @param string $path
|
| | 65 | + * @param array $data
|
| | 66 | + * @param int port
|
| | 67 | + * @return array response
|
| | 68 | + */
|
| | 69 | +function _recaptcha_http_post($host, $path, $data, $port = 80) {
|
| | 70 | +
|
| | 71 | + $req = _recaptcha_qsencode ($data);
|
| | 72 | +
|
| | 73 | + $http_request = "POST $path HTTP/1.0\r\n";
|
| | 74 | + $http_request .= "Host: $host\r\n";
|
| | 75 | + $http_request .= "Content-Type: application/x-www-form-urlencoded;\r\n";
|
| | 76 | + $http_request .= "Content-Length: " . strlen($req) . "\r\n";
|
| | 77 | + $http_request .= "User-Agent: reCAPTCHA/PHP\r\n";
|
| | 78 | + $http_request .= "\r\n";
|
| | 79 | + $http_request .= $req;
|
| | 80 | +
|
| | 81 | + $response = '';
|
| | 82 | + if( false == ( $fs = @fsockopen($host, $port, $errno, $errstr, 10) ) ) {
|
| | 83 | + die ('Could not open socket');
|
| | 84 | + }
|
| | 85 | +
|
| | 86 | + fwrite($fs, $http_request);
|
| | 87 | +
|
| | 88 | + while ( !feof($fs) )
|
| | 89 | + $response .= fgets($fs, 1160); // One TCP-IP packet
|
| | 90 | + fclose($fs);
|
| | 91 | + $response = explode("\r\n\r\n", $response, 2);
|
| | 92 | +
|
| | 93 | + return $response;
|
| | 94 | +}
|
| | 95 | +
|
| | 96 | +
|
| | 97 | +
|
| | 98 | +/**
|
| | 99 | + * Gets the challenge HTML (javascript and non-javascript version).
|
| | 100 | + * This is called from the browser, and the resulting reCAPTCHA HTML widget
|
| | 101 | + * is embedded within the HTML form it was called from.
|
| | 102 | + * @param string $pubkey A public key for reCAPTCHA
|
| | 103 | + * @param string $error The error given by reCAPTCHA (optional, default is null)
|
| | 104 | + * @param boolean $use_ssl Should the request be made over ssl? (optional, default is false)
|
| | 105 | +
|
| | 106 | + * @return string - The HTML to be embedded in the user's form.
|
| | 107 | + */
|
| | 108 | +function recaptcha_get_html ($pubkey, $error = null, $use_ssl = false)
|
| | 109 | +{
|
| | 110 | + global $recaptcha_api_server, $recaptcha_api_ssl_server;
|
| | 111 | +
|
| | 112 | + if ($pubkey == null || $pubkey == '') {
|
| | 113 | + die ("To use reCAPTCHA you must get an API key from <a href='http://recaptcha.net/api/getkey'>http://recaptcha.net/api/getkey</a>");
|
| | 114 | + }
|
| | 115 | +
|
| | 116 | + if ($use_ssl) {
|
| | 117 | + $server = $recaptcha_api_ssl_server;
|
| | 118 | + } else {
|
| | 119 | + $server = $recaptcha_api_server;
|
| | 120 | + }
|
| | 121 | + $errorpart = "";
|
| | 122 | + if ($error) {
|
| | 123 | + $errorpart = "&error=" . $error;
|
| | 124 | + }
|
| | 125 | + return '<script type="text/javascript" src="'. $server . '/challenge?k=' . $pubkey . $errorpart . '"></script>
|
| | 126 | +
|
| | 127 | + <noscript>
|
| | 128 | + <iframe src="'. $server . '/noscript?k=' . $pubkey . $errorpart . '" height="300" width="500" frameborder="0"></iframe><br>
|
| | 129 | + <textarea name="recaptcha_challenge_field" rows="3" cols="40"></textarea>
|
| | 130 | + <input type="hidden" name="recaptcha_response_field" value="manual_challenge">
|
| | 131 | + </noscript>';
|
| | 132 | +}
|
| | 133 | +
|
| | 134 | +
|
| | 135 | +
|
| | 136 | +
|
| | 137 | +/**
|
| | 138 | + * A ReCaptchaResponse is returned from recaptcha_check_answer()
|
| | 139 | + */
|
| | 140 | +class ReCaptchaResponse {
|
| | 141 | + var $is_valid;
|
| | 142 | + var $error;
|
| | 143 | +}
|
| | 144 | +
|
| | 145 | +
|
| | 146 | +/**
|
| | 147 | + * Calls an HTTP POST function to verify if the user's guess was correct
|
| | 148 | + * @param string $privkey
|
| | 149 | + * @param string $remoteip
|
| | 150 | + * @param string $challenge
|
| | 151 | + * @param string $response
|
| | 152 | + * @return ReCaptchaResponse
|
| | 153 | + */
|
| | 154 | +function recaptcha_check_answer ($privkey, $remoteip, $challenge, $response)
|
| | 155 | +{
|
| | 156 | + if ($privkey == null || $privkey == '') {
|
| | 157 | + die ("To use reCAPTCHA you must get an API key from <a href='http://recaptcha.net/api/getkey'>http://recaptcha.net/api/getkey</a>");
|
| | 158 | + }
|
| | 159 | +
|
| | 160 | + if ($remoteip == null || $remoteip == '') {
|
| | 161 | + die ("For security reasons, you must pass the remote ip to reCAPTCHA");
|
| | 162 | + }
|
| | 163 | +
|
| | 164 | +
|
| | 165 | +
|
| | 166 | + //discard spam submissions
|
| | 167 | + if ($challenge == null || strlen($challenge) == 0 || $response == null || strlen($response) == 0) {
|
| | 168 | + $recaptcha_response = new ReCaptchaResponse();
|
| | 169 | + $recaptcha_response->is_valid = false;
|
| | 170 | + $recaptcha_response->error = 'incorrect-captcha-sol';
|
| | 171 | + return $recaptcha_response;
|
| | 172 | + }
|
| | 173 | +
|
| | 174 | + global $recaptcha_verify_server;
|
| | 175 | + $response = _recaptcha_http_post ($recaptcha_verify_server, "/verify",
|
| | 176 | + array (
|
| | 177 | + 'privatekey' => $privkey,
|
| | 178 | + 'remoteip' => $remoteip,
|
| | 179 | + 'challenge' => $challenge,
|
| | 180 | + 'response' => $response
|
| | 181 | + )
|
| | 182 | + );
|
| | 183 | +
|
| | 184 | + $answers = explode ("\n", $response [1]);
|
| | 185 | + $recaptcha_response = new ReCaptchaResponse();
|
| | 186 | +
|
| | 187 | + if (trim ($answers [0]) == 'true') {
|
| | 188 | + $recaptcha_response->is_valid = true;
|
| | 189 | + }
|
| | 190 | + else {
|
| | 191 | + $recaptcha_response->is_valid = false;
|
| | 192 | + $recaptcha_response->error = $answers [1];
|
| | 193 | + }
|
| | 194 | + return $recaptcha_response;
|
| | 195 | +
|
| | 196 | +}
|
| | 197 | +
|
| | 198 | +/**
|
| | 199 | + * gets a URL where the user can sign up for reCAPTCHA. If your application
|
| | 200 | + * has a configuration page where you enter a key, you should provide a link
|
| | 201 | + * using this function.
|
| | 202 | + * @param string $domain The domain where the page is hosted
|
| | 203 | + * @param string $appname The name of your application
|
| | 204 | + */
|
| | 205 | +function recaptcha_get_signup_url ($domain = null, $appname = null) {
|
| | 206 | + return "http://recaptcha.net/api/getkey?" . _recaptcha_qsencode (array ('domain' => $domain, 'app' => $appname));
|
| | 207 | +}
|
| | 208 | +
|
| | 209 | +
|
| | 210 | +
|
| | 211 | +/* Mailhide related code */
|
| | 212 | +
|
| | 213 | +function _recaptcha_aes_encrypt($val,$ky) {
|
| | 214 | + if (! function_exists ("mcrypt_encrypt")) {
|
| | 215 | + die ("To use reCAPTCHA Mailhide, you need to have the mcrypt php module installed.");
|
| | 216 | + }
|
| | 217 | + $mode=MCRYPT_MODE_CBC;
|
| | 218 | + $enc=MCRYPT_RIJNDAEL_128;
|
| | 219 | + $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
|
| | 220 | + return mcrypt_encrypt($enc, $ky, $val, $mode, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0");
|
| | 221 | +}
|
| | 222 | +
|
| | 223 | +
|
| | 224 | +function _recaptcha_mailhide_urlbase64 ($x) {
|
| | 225 | + return strtr(base64_encode ($x), '+/', '-_');
|
| | 226 | +}
|
| | 227 | +
|
| | 228 | +/* gets the reCAPTCHA Mailhide url for a given email, public key and private key */
|
| | 229 | +function recaptcha_mailhide_url($pubkey, $privkey, $email) {
|
| | 230 | + if ($pubkey == '' || $pubkey == null || $privkey == "" || $privkey == null) {
|
| | 231 | + die ("To use reCAPTCHA Mailhide, you have to sign up for a public and private key, " .
|
| | 232 | + "you can do so at <a href='http://mailhide.recaptcha.net/apikey'>http://mailhide.recaptcha.net/apikey</a>");
|
| | 233 | + }
|
| | 234 | +
|
| | 235 | +
|
| | 236 | + $ky = pack('H*', $privkey);
|
| | 237 | + $cryptmail = _recaptcha_aes_encrypt ($email, $ky);
|
| | 238 | +
|
| | 239 | + return "http://mailhide.recaptcha.net/d?k=" . $pubkey . "&c=" . _recaptcha_mailhide_urlbase64 ($cryptmail);
|
| | 240 | +}
|
| | 241 | +
|
| | 242 | +/**
|
| | 243 | + * gets the parts of the email to expose to the user.
|
| | 244 | + * eg, given johndoe@example,com return ["john", "example.com"].
|
| | 245 | + * the email is then displayed as john...@example.com
|
| | 246 | + */
|
| | 247 | +function _recaptcha_mailhide_email_parts ($email) {
|
| | 248 | + $arr = preg_split("/@/", $email );
|
| | 249 | +
|
| | 250 | + if (strlen ($arr[0]) <= 4) {
|
| | 251 | + $arr[0] = substr ($arr[0], 0, 1);
|
| | 252 | + } else if (strlen ($arr[0]) <= 6) {
|
| | 253 | + $arr[0] = substr ($arr[0], 0, 3);
|
| | 254 | + } else {
|
| | 255 | + $arr[0] = substr ($arr[0], 0, 4);
|
| | 256 | + }
|
| | 257 | + return $arr;
|
| | 258 | +}
|
| | 259 | +
|
| | 260 | +/**
|
| | 261 | + * Gets html to display an email address given a public an private key.
|
| | 262 | + * to get a key, go to:
|
| | 263 | + *
|
| | 264 | + * http://mailhide.recaptcha.net/apikey
|
| | 265 | + */
|
| | 266 | +function recaptcha_mailhide_html($pubkey, $privkey, $email) {
|
| | 267 | + $emailparts = _recaptcha_mailhide_email_parts ($email);
|
| | 268 | + $url = recaptcha_mailhide_url ($pubkey, $privkey, $email);
|
| | 269 | +
|
| | 270 | + return htmlentities($emailparts[0]) . "<a href='" . htmlentities ($url) .
|
| | 271 | + "' onclick=\"window.open('" . htmlentities ($url) . "', '', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=500,height=300'); return false;\" title=\"Reveal this e-mail address\">...</a>@" . htmlentities ($emailparts [1]);
|
| | 272 | +
|
| | 273 | +}
|
| | 274 | +
|
| | 275 | +
|
| | 276 | +?>
|