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-rw-r--r--plugins/Recaptcha/RecaptchaPlugin.php106
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diff --git a/plugins/Recaptcha/RecaptchaPlugin.php b/plugins/Recaptcha/RecaptchaPlugin.php
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+<?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');
+
+require_once(INSTALLDIR.'/plugins/Recaptcha/recaptchalib.php');
+
+class RecaptchaPlugin extends Plugin
+{
+ var $private_key;
+ var $public_key;
+ var $display_errors;
+ var $failed;
+ var $ssl;
+
+ function onInitializePlugin(){
+ if(!isset($this->private_key)){
+ common_log(LOG_ERR, "Recaptcha: Must specify private_key in config.php");
+ }
+ if(!isset($this->public_key)){
+ common_log(LOG_ERR, "Recaptcha: Must specify public_key in config.php");
+ }
+ }
+
+ function checkssl(){
+ if(common_config('site', 'ssl') === 'sometimes' || common_config('site', 'ssl') === 'always') {
+ return true;
+ }
+ return false;
+ }
+
+ function onStartShowHTML($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;
+ }
+ }
+}