diff options
Diffstat (limited to 'plugins/recaptcha')
-rw-r--r-- | plugins/recaptcha/LICENSE | 22 | ||||
-rw-r--r-- | plugins/recaptcha/README | 23 | ||||
-rw-r--r-- | plugins/recaptcha/recaptcha.php | 104 | ||||
-rw-r--r-- | plugins/recaptcha/recaptchalib.php | 277 |
4 files changed, 0 insertions, 426 deletions
diff --git a/plugins/recaptcha/LICENSE b/plugins/recaptcha/LICENSE deleted file mode 100644 index b612f71f0..000000000 --- a/plugins/recaptcha/LICENSE +++ /dev/null @@ -1,22 +0,0 @@ -Copyright (c) 2007 reCAPTCHA -- http://recaptcha.net -AUTHORS: - Mike Crawford - Ben Maurer - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -THE SOFTWARE. diff --git a/plugins/recaptcha/README b/plugins/recaptcha/README deleted file mode 100644 index b996f96cc..000000000 --- a/plugins/recaptcha/README +++ /dev/null @@ -1,23 +0,0 @@ -StatusNet reCAPTCHA plugin 0.2 8/3/09 -==================================== -Adds a captcha to your registration page to reduce automated spam bots registering. - -Use: -1. Get an API key from http://recaptcha.net - -2. In config.php add: -include_once('plugins/recaptcha/recaptcha.php'); -$captcha = new recaptcha(publickey, privatekey, showErrors); - -Changelog -========= -0.1 initial release -0.2 Work around for webkit browsers - -reCAPTCHA README -================ - -The reCAPTCHA PHP Lirary helps you use the reCAPTCHA API. Documentation -for this library can be found at - - http://recaptcha.net/plugins/php diff --git a/plugins/recaptcha/recaptcha.php b/plugins/recaptcha/recaptcha.php deleted file mode 100644 index 94cf0ccd1..000000000 --- a/plugins/recaptcha/recaptcha.php +++ /dev/null @@ -1,104 +0,0 @@ -<?php -/** - * StatusNet, the distributed open-source microblogging tool - * - * Plugin to show reCaptcha when a user registers - * - * PHP version 5 - * - * LICENCE: This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - * @category Plugin - * @package StatusNet - * @author Eric Helgeson <erichelgeson@gmail.com> - * @copyright 2009 - * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 - * @link http://status.net/ - */ - -if (!defined('STATUSNET') && !defined('LACONICA')) { - exit(1); -} - -define('RECAPTCHA', '0.2'); - -class recaptcha extends Plugin -{ - var $private_key; - var $public_key; - var $display_errors; - var $failed; - var $ssl; - - function __construct($public_key, $private_key, $display_errors=false) - { - parent::__construct(); - require_once(INSTALLDIR.'/plugins/recaptcha/recaptchalib.php'); - $this->public_key = $public_key; - $this->private_key = $private_key; - $this->display_errors = $display_errors; - } - - function checkssl(){ - if(common_config('site', 'ssl') === 'sometimes' || common_config('site', 'ssl') === 'always') { - return true; - } - return false; - } - - function onStartShowHTML($action) - { - //XXX: Horrible hack to make Safari, FF2, and Chrome work with - //reChapcha. reChapcha beaks xhtml strict - header('Content-Type: text/html'); - - $action->extraHeaders(); - - $action->startXML('html'); - - $action->raw('<style type="text/css">#recaptcha_area{float:left;}</style>'); - return false; - } - - function onEndRegistrationFormData($action) - { - $action->elementStart('li'); - $action->raw('<label for="recaptcha_area">Captcha</label>'); - if($this->checkssl() === true){ - $action->raw(recaptcha_get_html($this->public_key), null, true); - } else { - $action->raw(recaptcha_get_html($this->public_key)); - } - $action->elementEnd('li'); - return true; - } - - function onStartRegistrationTry($action) - { - $resp = recaptcha_check_answer ($this->private_key, - $_SERVER["REMOTE_ADDR"], - $action->trimmed('recaptcha_challenge_field'), - $action->trimmed('recaptcha_response_field')); - - if (!$resp->is_valid) - { - if($this->display_errors) - { - $action->showForm ("(reCAPTCHA said: " . $resp->error . ")"); - } - $action->showForm("Captcha does not match!"); - return false; - } - } -} diff --git a/plugins/recaptcha/recaptchalib.php b/plugins/recaptcha/recaptchalib.php deleted file mode 100644 index 897c50981..000000000 --- a/plugins/recaptcha/recaptchalib.php +++ /dev/null @@ -1,277 +0,0 @@ -<?php -/* - * This is a PHP library that handles calling reCAPTCHA. - * - Documentation and latest version - * http://recaptcha.net/plugins/php/ - * - Get a reCAPTCHA API Key - * http://recaptcha.net/api/getkey - * - Discussion group - * http://groups.google.com/group/recaptcha - * - * Copyright (c) 2007 reCAPTCHA -- http://recaptcha.net - * AUTHORS: - * Mike Crawford - * Ben Maurer - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -/** - * The reCAPTCHA server URL's - */ -define("RECAPTCHA_API_SERVER", "http://api.recaptcha.net"); -define("RECAPTCHA_API_SECURE_SERVER", "https://api-secure.recaptcha.net"); -define("RECAPTCHA_VERIFY_SERVER", "api-verify.recaptcha.net"); - -/** - * Encodes the given data into a query string format - * @param $data - array of string elements to be encoded - * @return string - encoded request - */ -function _recaptcha_qsencode ($data) { - $req = ""; - foreach ( $data as $key => $value ) - $req .= $key . '=' . urlencode( stripslashes($value) ) . '&'; - - // Cut the last '&' - $req=substr($req,0,strlen($req)-1); - return $req; -} - - - -/** - * Submits an HTTP POST to a reCAPTCHA server - * @param string $host - * @param string $path - * @param array $data - * @param int port - * @return array response - */ -function _recaptcha_http_post($host, $path, $data, $port = 80) { - - $req = _recaptcha_qsencode ($data); - - $http_request = "POST $path HTTP/1.0\r\n"; - $http_request .= "Host: $host\r\n"; - $http_request .= "Content-Type: application/x-www-form-urlencoded;\r\n"; - $http_request .= "Content-Length: " . strlen($req) . "\r\n"; - $http_request .= "User-Agent: reCAPTCHA/PHP\r\n"; - $http_request .= "\r\n"; - $http_request .= $req; - - $response = ''; - if( false == ( $fs = @fsockopen($host, $port, $errno, $errstr, 10) ) ) { - die ('Could not open socket'); - } - - fwrite($fs, $http_request); - - while ( !feof($fs) ) - $response .= fgets($fs, 1160); // One TCP-IP packet - fclose($fs); - $response = explode("\r\n\r\n", $response, 2); - - return $response; -} - - - -/** - * Gets the challenge HTML (javascript and non-javascript version). - * This is called from the browser, and the resulting reCAPTCHA HTML widget - * is embedded within the HTML form it was called from. - * @param string $pubkey A public key for reCAPTCHA - * @param string $error The error given by reCAPTCHA (optional, default is null) - * @param boolean $use_ssl Should the request be made over ssl? (optional, default is false) - - * @return string - The HTML to be embedded in the user's form. - */ -function recaptcha_get_html ($pubkey, $error = null, $use_ssl = false) -{ - if ($pubkey == null || $pubkey == '') { - die ("To use reCAPTCHA you must get an API key from <a href='http://recaptcha.net/api/getkey'>http://recaptcha.net/api/getkey</a>"); - } - - if ($use_ssl) { - $server = RECAPTCHA_API_SECURE_SERVER; - } else { - $server = RECAPTCHA_API_SERVER; - } - - $errorpart = ""; - if ($error) { - $errorpart = "&error=" . $error; - } - return '<script type="text/javascript" src="'. $server . '/challenge?k=' . $pubkey . $errorpart . '"></script> - - <noscript> - <iframe src="'. $server . '/noscript?k=' . $pubkey . $errorpart . '" height="300" width="500" frameborder="0"></iframe><br/> - <textarea name="recaptcha_challenge_field" rows="3" cols="40"></textarea> - <input type="hidden" name="recaptcha_response_field" value="manual_challenge"/> - </noscript>'; -} - - - - -/** - * A ReCaptchaResponse is returned from recaptcha_check_answer() - */ -class ReCaptchaResponse { - var $is_valid; - var $error; -} - - -/** - * Calls an HTTP POST function to verify if the user's guess was correct - * @param string $privkey - * @param string $remoteip - * @param string $challenge - * @param string $response - * @param array $extra_params an array of extra variables to post to the server - * @return ReCaptchaResponse - */ -function recaptcha_check_answer ($privkey, $remoteip, $challenge, $response, $extra_params = array()) -{ - if ($privkey == null || $privkey == '') { - die ("To use reCAPTCHA you must get an API key from <a href='http://recaptcha.net/api/getkey'>http://recaptcha.net/api/getkey</a>"); - } - - if ($remoteip == null || $remoteip == '') { - die ("For security reasons, you must pass the remote ip to reCAPTCHA"); - } - - - - //discard spam submissions - if ($challenge == null || strlen($challenge) == 0 || $response == null || strlen($response) == 0) { - $recaptcha_response = new ReCaptchaResponse(); - $recaptcha_response->is_valid = false; - $recaptcha_response->error = 'incorrect-captcha-sol'; - return $recaptcha_response; - } - - $response = _recaptcha_http_post (RECAPTCHA_VERIFY_SERVER, "/verify", - array ( - 'privatekey' => $privkey, - 'remoteip' => $remoteip, - 'challenge' => $challenge, - 'response' => $response - ) + $extra_params - ); - - $answers = explode ("\n", $response [1]); - $recaptcha_response = new ReCaptchaResponse(); - - if (trim ($answers [0]) == 'true') { - $recaptcha_response->is_valid = true; - } - else { - $recaptcha_response->is_valid = false; - $recaptcha_response->error = $answers [1]; - } - return $recaptcha_response; - -} - -/** - * gets a URL where the user can sign up for reCAPTCHA. If your application - * has a configuration page where you enter a key, you should provide a link - * using this function. - * @param string $domain The domain where the page is hosted - * @param string $appname The name of your application - */ -function recaptcha_get_signup_url ($domain = null, $appname = null) { - return "http://recaptcha.net/api/getkey?" . _recaptcha_qsencode (array ('domain' => $domain, 'app' => $appname)); -} - -function _recaptcha_aes_pad($val) { - $block_size = 16; - $numpad = $block_size - (strlen ($val) % $block_size); - return str_pad($val, strlen ($val) + $numpad, chr($numpad)); -} - -/* Mailhide related code */ - -function _recaptcha_aes_encrypt($val,$ky) { - if (! function_exists ("mcrypt_encrypt")) { - die ("To use reCAPTCHA Mailhide, you need to have the mcrypt php module installed."); - } - $mode=MCRYPT_MODE_CBC; - $enc=MCRYPT_RIJNDAEL_128; - $val=_recaptcha_aes_pad($val); - return mcrypt_encrypt($enc, $ky, $val, $mode, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); -} - - -function _recaptcha_mailhide_urlbase64 ($x) { - return strtr(base64_encode ($x), '+/', '-_'); -} - -/* gets the reCAPTCHA Mailhide url for a given email, public key and private key */ -function recaptcha_mailhide_url($pubkey, $privkey, $email) { - if ($pubkey == '' || $pubkey == null || $privkey == "" || $privkey == null) { - die ("To use reCAPTCHA Mailhide, you have to sign up for a public and private key, " . - "you can do so at <a href='http://mailhide.recaptcha.net/apikey'>http://mailhide.recaptcha.net/apikey</a>"); - } - - - $ky = pack('H*', $privkey); - $cryptmail = _recaptcha_aes_encrypt ($email, $ky); - - return "http://mailhide.recaptcha.net/d?k=" . $pubkey . "&c=" . _recaptcha_mailhide_urlbase64 ($cryptmail); -} - -/** - * gets the parts of the email to expose to the user. - * eg, given johndoe@example,com return ["john", "example.com"]. - * the email is then displayed as john...@example.com - */ -function _recaptcha_mailhide_email_parts ($email) { - $arr = preg_split("/@/", $email ); - - if (strlen ($arr[0]) <= 4) { - $arr[0] = substr ($arr[0], 0, 1); - } else if (strlen ($arr[0]) <= 6) { - $arr[0] = substr ($arr[0], 0, 3); - } else { - $arr[0] = substr ($arr[0], 0, 4); - } - return $arr; -} - -/** - * Gets html to display an email address given a public an private key. - * to get a key, go to: - * - * http://mailhide.recaptcha.net/apikey - */ -function recaptcha_mailhide_html($pubkey, $privkey, $email) { - $emailparts = _recaptcha_mailhide_email_parts ($email); - $url = recaptcha_mailhide_url ($pubkey, $privkey, $email); - - return htmlentities($emailparts[0]) . "<a href='" . htmlentities ($url) . - "' onclick=\"window.open('" . htmlentities ($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]); - -} - - -?> |