<?php /* Question2Answer (c) Gideon Greenspan http://www.question2answer.org/ File: qa-include/qa-app-cookies.php Version: See define()s at top of qa-include/qa-base.php Description: User cookie management (application level) for tracking anonymous posts This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 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 General Public License for more details. More about this license: http://www.question2answer.org/license.php */ if (!defined('QA_VERSION')) { // don't allow this page to be requested directly from browser header('Location: ../'); exit; } function qa_cookie_get() /* Return the user identification cookie sent by the browser for this page request, or null if none */ { if (qa_to_override(__FUNCTION__)) { $args=func_get_args(); return qa_call_override(__FUNCTION__, $args); } return isset($_COOKIE['qa_id']) ? qa_gpc_to_string($_COOKIE['qa_id']) : null; } function qa_cookie_get_create() /* Return user identification cookie sent by browser if valid, or create a new one if not. Either way, extend for another year (this is used when an anonymous post is created) */ { if (qa_to_override(__FUNCTION__)) { $args=func_get_args(); return qa_call_override(__FUNCTION__, $args); } require_once QA_INCLUDE_DIR.'qa-db-cookies.php'; $cookieid=qa_cookie_get(); if (isset($cookieid) && qa_db_cookie_exists($cookieid)) ; // cookie is valid else $cookieid=qa_db_cookie_create(qa_remote_ip_address()); setcookie('qa_id', $cookieid, time()+86400*365, '/', QA_COOKIE_DOMAIN); $_COOKIE['qa_id']=$cookieid; return $cookieid; } function qa_cookie_report_action($cookieid, $action) /* Called after a database write $action performed by a user identified by $cookieid, relating to $questionid, $answerid and/or $commentid */ { require_once QA_INCLUDE_DIR.'qa-db-cookies.php'; qa_db_cookie_written($cookieid, qa_remote_ip_address()); } /* Omit PHP closing tag to help avoid accidental output */