diff options
Diffstat (limited to 'plugins/recaptcha/recaptcha.php')
-rw-r--r-- | plugins/recaptcha/recaptcha.php | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/plugins/recaptcha/recaptcha.php b/plugins/recaptcha/recaptcha.php new file mode 100644 index 000000000..94cf0ccd1 --- /dev/null +++ b/plugins/recaptcha/recaptcha.php @@ -0,0 +1,104 @@ +<?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; + } + } +} |