* with (xinha_config.ImageManager) * { * '/home/your/directory', * 'images_url' => '/directory' * ) * ) * ?> * } * * */ function xinha_pass_to_php_backend($Data, $KeyLocation = 'Xinha:BackendKey', $ReturnPHP = FALSE) { $bk = array(); $bk['data'] = serialize($Data); @session_start(); if(!isset($_SESSION[$KeyLocation])) { $_SESSION[$KeyLocation] = uniqid('Key_'); } $bk['session_name'] = session_name(); $bk['key_location'] = $KeyLocation; $bk['hash'] = function_exists('sha1') ? sha1($_SESSION[$KeyLocation] . $bk['data']) : md5($_SESSION[$KeyLocation] . $bk['data']); // The data will be passed via a postback to the // backend, we want to make sure these are going to come // out from the PHP as an array like $bk above, so // we need to adjust the keys. $backend_data = array(); foreach($bk as $k => $v) { $backend_data["backend_data[$k]"] = $v; } // The session_start() above may have been after data was sent, so cookies // wouldn't have worked. $backend_data[session_name()] = session_id(); if($ReturnPHP) { return array('backend_data' => $backend_data); } else { echo 'backend_data = ' . xinha_to_js($backend_data) . "; \n"; } } /** Convert PHP data structure to Javascript */ function xinha_to_js($var, $tabs = 0) { if(is_numeric($var)) { return $var; } if(is_string($var)) { return "'" . xinha_js_encode($var) . "'"; } if(is_array($var)) { $useObject = false; foreach(array_keys($var) as $k) { if(!is_numeric($k)) $useObject = true; } $js = array(); foreach($var as $k => $v) { $i = ""; if($useObject) { if(preg_match('#^[a-zA-Z]+[a-zA-Z0-9]*$#', $k)) { $i .= "$k: "; } else { $i .= "'$k': "; } } $i .= xinha_to_js($v, $tabs + 1); $js[] = $i; } if($useObject) { $ret = "{\n" . xinha_tabify(implode(",\n", $js), $tabs) . "\n}"; } else { $ret = "[\n" . xinha_tabify(implode(",\n", $js), $tabs) . "\n]"; } return $ret; } return 'null'; } /** Like htmlspecialchars() except for javascript strings. */ function xinha_js_encode($string) { static $strings = "\\,\",',%,&,<,>,{,},@,\n,\r"; if(!is_array($strings)) { $tr = array(); foreach(explode(',', $strings) as $chr) { $tr[$chr] = sprintf('\x%02X', ord($chr)); } $strings = $tr; } return strtr($string, $strings); } /** Used by plugins to get the config passed via * xinha_pass_to_backend() * returns either the structure given, or NULL * if none was passed or a security error was encountered. */ function xinha_read_passed_data() { if(isset($_REQUEST['backend_data']) && is_array($_REQUEST['backend_data'])) { $bk = $_REQUEST['backend_data']; session_name($bk['session_name']); @session_start(); if(!isset($_SESSION[$bk['key_location']])) return NULL; if($bk['hash'] === function_exists('sha1') ? sha1($_SESSION[$bk['key_location']] . $bk['data']) : md5($_SESSION[$bk['key_location']] . $bk['data'])) { return unserialize(ini_get('magic_quotes_gpc') ? stripslashes($bk['data']) : $bk['data']); } } return NULL; } /** Used by plugins to get a query string that can be sent to the backend * (or another part of the backend) to send the same data. */ function xinha_passed_data_querystring() { $qs = array(); if(isset($_REQUEST['backend_data']) && is_array($_REQUEST['backend_data'])) { foreach($_REQUEST['backend_data'] as $k => $v) { $v = ini_get('magic_quotes_gpc') ? stripslashes($v) : $v; $qs[] = "backend_data[" . rawurlencode($k) . "]=" . rawurlencode($v); } } $qs[] = session_name() . '=' . session_id(); return implode('&', $qs); } /** Just space-tab indent some text */ function xinha_tabify($text, $tabs) { if($text) { return str_repeat(" ", $tabs) . preg_replace('/\n(.)/', "\n" . str_repeat(" ", $tabs) . "\$1", $text); } } /** Return upload_max_filesize value from php.ini in kilobytes (function adapted from php.net)**/ function upload_max_filesize_kb() { $val = ini_get('upload_max_filesize'); $val = trim($val); $last = strtolower($val{strlen($val)-1}); switch($last) { // The 'G' modifier is available since PHP 5.1.0 case 'g': $val *= 1024; case 'm': $val *= 1024; } return $val; } ?>