/manager/includes/document.parser.class.inc.php

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<?php
/**
 *	MODx Document Parser
 *	Function: This class contains the main document parsing functions
 *
 */
class DocumentParser {
    var $db; // db object
    var $event, $Event; // event object

    var $pluginEvent;

    var $config= null;
    var $rs, $result, $sql, $table_prefix, $debug, $documentIdentifier, $documentMethod, $documentGenerated, $documentContent, $tstart, $minParserPasses, $maxParserPasses, $documentObject, $templateObject, $snippetObjects, $stopOnNotice, $executedQueries, $queryTime, $currentSnippet, $documentName, $aliases, $visitor, $entrypage, $documentListing, $dumpSnippets, $chunkCache, $snippetCache, $contentTypes, $dumpSQL, $queryCode, $virtualDir, $placeholders, $sjscripts, $jscripts, $loadedjscripts, $documentMap;
    var $forwards= 3;

    // constructor
    function DocumentParser() {
        $this->loadExtension('DBAPI') or die('Could not load DBAPI class.'); // load DBAPI class
        $this->dbConfig= & $this->db->config; // alias for backward compatibility
        $this->jscripts= array ();
        $this->sjscripts= array ();
        $this->loadedjscripts= array ();
        // events
        $this->event= new SystemEvent();
        $this->Event= & $this->event; //alias for backward compatibility
        $this->pluginEvent= array ();
        // set track_errors ini variable
        @ ini_set("track_errors", "1"); // enable error tracking in $php_errormsg
    }

    // loads an extension from the extenders folder
    function loadExtension($extname) {
        global $database_type;

        switch ($extname) {
            // Database API
            case 'DBAPI' :
                if (!include_once MODX_BASE_PATH . 'manager/includes/extenders/dbapi.' . $database_type . '.class.inc.php')
                    return false;
                $this->db= new DBAPI;
                return true;
                break;

                // Manager API
            case 'ManagerAPI' :
                if (!include_once MODX_BASE_PATH . 'manager/includes/extenders/manager.api.class.inc.php')
                    return false;
                $this->manager= new ManagerAPI;
                return true;
                break;

            default :
                return false;
        }
    }

    function getMicroTime() {
        list ($usec, $sec)= explode(' ', microtime());
        return ((float) $usec + (float) $sec);
    }

    function sendRedirect($url, $count_attempts= 0, $type= '', $responseCode= '') {
        if (empty ($url)) {
            return false;
        } else {
            if ($count_attempts == 1) {
                // append the redirect count string to the url
                $currentNumberOfRedirects= isset ($_REQUEST['err']) ? $_REQUEST['err'] : 0;
                if ($currentNumberOfRedirects > 3) {
                    $this->messageQuit('Redirection attempt failed - please ensure the document you\'re trying to redirect to exists. <p>Redirection URL: <i>' . $url . '</i></p>');
                } else {
                    $currentNumberOfRedirects += 1;
                    if (strpos($url, "?") > 0) {
                        $url .= "&err=$currentNumberOfRedirects";
                    } else {
                        $url .= "?err=$currentNumberOfRedirects";
                    }
                }
            }
            if ($type == 'REDIRECT_REFRESH') {
                $header= 'Refresh: 0;URL=' . $url;
            }
            elseif ($type == 'REDIRECT_META') {
                $header= '<META HTTP-EQUIV="Refresh" CONTENT="0; URL=' . $url . '" />';
                echo $header;
                exit;
            }
            elseif ($type == 'REDIRECT_HEADER' || empty ($type)) {
                // check if url has /$base_url
                global $base_url, $site_url;
                if (substr($url, 0, strlen($base_url)) == $base_url) {
                    // append $site_url to make it work with Location:
                    $url= $site_url . substr($url, strlen($base_url));
                }
                if (strpos($url, "\n") === false) {
                    $header= 'Location: ' . $url;
                } else {
                    $this->messageQuit('No newline allowed in redirect url.');
                }
            }
            if ($responseCode && (strpos($responseCode, '30') !== false)) {
                header($responseCode);
            }
            header($header);
            exit();
        }
    }

    function sendForward($id, $responseCode= '') {
        if ($this->forwards > 0) {
            $this->forwards= $this->forwards - 1;
            $this->documentIdentifier= $id;
            $this->documentMethod= 'id';
            $this->documentObject= $this->getDocumentObject('id', $id);
            if ($responseCode) {
                header($responseCode);
            }
            $this->prepareResponse();
            exit();
        } else {
            header('HTTP/1.0 500 Internal Server Error');
            die('<h1>ERROR: Too many forward attempts!</h1><p>The request could not be completed due to too many unsuccessful forward attempts.</p>');
        }
    }

    function sendErrorPage() {
        // invoke OnPageNotFound event
        $this->invokeEvent('OnPageNotFound');
//        $this->sendRedirect($this->makeUrl($this->config['error_page'], '', '&refurl=' . urlencode($_SERVER['PHP_SELF'] . '?' . $_SERVER['QUERY_STRING'])), 1);
        $this->sendForward($this->config['error_page'] ? $this->config['error_page'] : $this->config['site_start'], 'HTTP/1.0 404 Not Found');
        exit();
    }

    function sendUnauthorizedPage() {
        // invoke OnPageUnauthorized event
        $_REQUEST['refurl'] = $this->documentIdentifier;
        $this->invokeEvent('OnPageUnauthorized');
        if ($this->config['unauthorized_page']) {
            $unauthorizedPage= $this->config['unauthorized_page'];
        } elseif ($this->config['error_page']) {
            $unauthorizedPage= $this->config['error_page'];
        } else {
            $unauthorizedPage= $this->config['site_start'];
        }
        $this->sendForward($unauthorizedPage, 'HTTP/1.1 401 Unauthorized');
        exit();
    }

    // function to connect to the database
    // - deprecated use $modx->db->connect()
    function dbConnect() {
        $this->db->connect();
        $this->rs= $this->db->conn; // for compatibility
    }

    // function to query the database
    // - deprecated use $modx->db->query()
    function dbQuery($sql) {
        return $this->db->query($sql);
    }

    // function to count the number of rows in a record set
    function recordCount($rs) {
        return $this->db->getRecordCount($rs);
    }

    // - deprecated, use $modx->db->getRow()
    function fetchRow($rs, $mode= 'assoc') {
        return $this->db->getRow($rs, $mode);
    }

    // - deprecated, use $modx->db->getAffectedRows()
    function affectedRows($rs) {
        return $this->db->getAffectedRows($rs);
    }

    // - deprecated, use $modx->db->getInsertId()
    function insertId($rs) {
        return $this->db->getInsertId($rs);
    }

    // function to close a database connection
    // - deprecated, use $modx->db->disconnect()
    function dbClose() {
        $this->db->disconnect();
    }

    function getSettings() {
        if (!is_array($this->config) || empty ($this->config)) {
            if ($included= file_exists(MODX_BASE_PATH . 'assets/cache/siteCache.idx.php')) {
                $included= include_once (MODX_BASE_PATH . 'assets/cache/siteCache.idx.php');
            }
            if (!$included || !is_array($this->config) || empty ($this->config)) {
                include_once MODX_BASE_PATH . "/manager/processors/cache_sync.class.processor.php";
                $cache = new synccache();
                $cache->setCachepath(MODX_BASE_PATH . "/assets/cache/");
                $cache->setReport(false);
                $rebuilt = $cache->buildCache($this);
                $included = false;
                if($rebuilt && $included= file_exists(MODX_BASE_PATH . 'assets/cache/siteCache.idx.php')) {
                    $included= include MODX_BASE_PATH . 'assets/cache/siteCache.idx.php';
                }
                if(!$included) {
                    $result= $this->db->query('SELECT setting_name, setting_value FROM ' . $this->getFullTableName('system_settings'));
                    while ($row= $this->db->getRow($result, 'both')) {
                        $this->config[$row[0]]= $row[1];
                    }
                }
            }

            // added for backwards compatibility - garry FS#104
            $this->config['etomite_charset'] = & $this->config['modx_charset'];

            // store base_url and base_path inside config array
            $this->config['base_url']= MODX_BASE_URL;
            $this->config['base_path']= MODX_BASE_PATH;
            $this->config['site_url']= MODX_SITE_URL;

            // load user setting if user is logged in
            $usrSettings= array ();
            if ($id= $this->getLoginUserID()) {
                $usrType= $this->getLoginUserType();
                if (isset ($usrType) && $usrType == 'manager')
                    $usrType= 'mgr';

                if ($usrType == 'mgr' && $this->isBackend()) {
                    // invoke the OnBeforeManagerPageInit event, only if in backend
                    $this->invokeEvent("OnBeforeManagerPageInit");
                }

                if (isset ($_SESSION[$usrType . 'UsrConfigSet'])) {
                    $usrSettings= & $_SESSION[$usrType . 'UsrConfigSet'];
                } else {
                    if ($usrType == 'web')
                        $query= $this->getFullTableName('web_user_settings') . ' WHERE webuser=\'' . $id . '\'';
                    else
                        $query= $this->getFullTableName('user_settings') . ' WHERE user=\'' . $id . '\'';
                    $result= $this->db->query('SELECT setting_name, setting_value FROM ' . $query);
                    while ($row= $this->db->getRow($result, 'both'))
                        $usrSettings[$row[0]]= $row[1];
                    if (isset ($usrType))
                        $_SESSION[$usrType . 'UsrConfigSet']= $usrSettings; // store user settings in session
                }
            }
            if ($this->isFrontend() && $mgrid= $this->getLoginUserID('mgr')) {
                $musrSettings= array ();
                if (isset ($_SESSION['mgrUsrConfigSet'])) {
                    $musrSettings= & $_SESSION['mgrUsrConfigSet'];
                } else {
                    $query= $this->getFullTableName('user_settings') . ' WHERE user=\'' . $mgrid . '\'';
                    if ($result= $this->db->query('SELECT setting_name, setting_value FROM ' . $query)) {
                        while ($row= $this->db->getRow($result, 'both')) {
                            $usrSettings[$row[0]]= $row[1];
                        }
                        $_SESSION['mgrUsrConfigSet']= $musrSettings; // store user settings in session
                    }
                }
                if (!empty ($musrSettings)) {
                    $usrSettings= array_merge($musrSettings, $usrSettings);
                }
            }
            $this->config= array_merge($this->config, $usrSettings);
        }
    }

    function getDocumentMethod() {
        // function to test the query and find the retrieval method
        if (isset ($_REQUEST['q'])) {
            return "alias";
        }
        elseif (isset ($_REQUEST['id'])) {
            return "id";
        } else {
            return "none";
        }
    }

    function getDocumentIdentifier($method) {
        // function to test the query and find the retrieval method
        $docIdentifier= $this->config['site_start'];
        switch ($method) {
            case 'alias' :
                $docIdentifier= $this->db->escape($_REQUEST['q']);
                break;
            case 'id' :
                if (!is_numeric($_REQUEST['id'])) {
                    $this->sendErrorPage();
                } else {
                    $docIdentifier= intval($_REQUEST['id']);
                }
                break;
        }
        return $docIdentifier;
    }

    // check for manager login session
    function checkSession() {
        if (isset ($_SESSION['mgrValidated'])) {
            return true;
        } else {
            return false;
        }
    }

    function checkPreview() {
        if ($this->checkSession() == true) {
            if (isset ($_REQUEST['z']) && $_REQUEST['z'] == 'manprev') {
                return true;
            } else {
                return false;
            }
        } else {
            return false;
        }
    }

    // check if site is offline
    function checkSiteStatus() {
        $siteStatus= $this->config['site_status'];
        if ($siteStatus == 1) {
            // site online
            return true;
        }
        elseif ($siteStatus == 0 && $this->checkSession()) {
            // site offline but launched via the manager
            return true;
        } else {
            // site is offline
            return false;
        }
    }

    function cleanDocumentIdentifier($qOrig) {
        (!empty($qOrig)) or $qOrig = $this->config['site_start'];
        $q= $qOrig;
        /* First remove any / before or after */
        if ($q[strlen($q) - 1] == '/')
            $q= substr($q, 0, -1);
        if ($q[0] == '/')
            $q= substr($q, 1);
        /* Save path if any */
        /* FS#476 and FS#308: only return virtualDir if friendly paths are enabled */
        if ($this->config['use_alias_path'] == 1) {
            $this->virtualDir= dirname($q);
            $this->virtualDir= ($this->virtualDir == '.' ? '' : $this->virtualDir);
            $q= basename($q);
        } else {
            $this->virtualDir= '';
        }
        $q= str_replace($this->config['friendly_url_prefix'], "", $q);
        $q= str_replace($this->config['friendly_url_suffix'], "", $q);
        if (is_numeric($q) && !$this->documentListing[$q]) { /* we got an ID returned, check to make sure it's not an alias */
            /* FS#476 and FS#308: check that id is valid in terms of virtualDir structure */
            if ($this->config['use_alias_path'] == 1) {
                if ((($this->virtualDir != '' && !$this->documentListing[$this->virtualDir . '/' . $q]) || ($this->virtualDir == '' && !$this->documentListing[$q])) && (($this->virtualDir != '' && in_array($q, $this->getChildIds($this->documentListing[$this->virtualDir], 1))) || ($this->virtualDir == '' && in_array($q, $this->getChildIds(0, 1))))) {
                    $this->documentMethod= 'id';
                    return $q;
                } else { /* not a valid id in terms of virtualDir, treat as alias */
                    $this->documentMethod= 'alias';
                    return $q;
                }
            } else {
                $this->documentMethod= 'id';
                return $q;
            }
        } else { /* we didn't get an ID back, so instead we assume it's an alias */
            if ($this->config['friendly_alias_urls'] != 1) {
                $q= $qOrig;
            }
            $this->documentMethod= 'alias';
            return $q;
        }
    }

    function checkCache($id) {
        $cacheFile= "assets/cache/docid_" . $id . ".pageCache.php";
        if (file_exists($cacheFile)) {
            $this->documentGenerated= 0;
            $flContent= implode("", file($cacheFile));
            $flContent= substr($flContent, 37); // remove php header
            $a= explode("<!--__MODxCacheSpliter__-->", $flContent, 2);
            if (count($a) == 1)
                return $a[0]; // return only document content
            else {
                $docObj= unserialize($a[0]); // rebuild document object
                // check page security
                if ($docObj['privateweb'] && isset ($docObj['__MODxDocGroups__'])) {
                    $pass= false;
                    $usrGrps= $this->getUserDocGroups();
                    $docGrps= explode(",", $docObj['__MODxDocGroups__']);
                    // check is user has access to doc groups
                    if (is_array($usrGrps)) {
                        foreach ($usrGrps as $k => $v)
                            if (in_array($v, $docGrps)) {
                                $pass= true;
                                break;
                            }
                    }
                    // diplay error pages if user has no access to cached doc
                    if (!$pass) {
                        if ($this->config['unauthorized_page']) {
                            // check if file is not public
                            $tbldg= $this->getFullTableName("document_groups");
                            $secrs= $this->db->query("SELECT id FROM $tbldg WHERE document = '" . $id . "' LIMIT 1;");
                            if ($secrs)
                                $seclimit= mysql_num_rows($secrs);
                        }
                        if ($seclimit > 0) {
                            // match found but not publicly accessible, send the visitor to the unauthorized_page
                            $this->sendUnauthorizedPage();
                            exit; // stop here
                        } else {
                            // no match found, send the visitor to the error_page
                            $this->sendErrorPage();
                            exit; // stop here
                        }
                    }
                }
				// Grab the Scripts
				if (isset($docObj['__MODxSJScripts__'])) $this->sjscripts = $docObj['__MODxSJScripts__'];
				if (isset($docObj['__MODxJScripts__']))  $this->jscripts = $docObj['__MODxJScripts__'];

				// Remove intermediate variables
                unset($docObj['__MODxDocGroups__'], $docObj['__MODxSJScripts__'], $docObj['__MODxJScripts__']);

                $this->documentObject= $docObj;
                return $a[1]; // return document content
            }
        } else {
            $this->documentGenerated= 1;
            return "";
        }
    }

    function outputContent($noEvent= false) {

        $this->documentOutput= $this->documentContent;

        if ($this->documentGenerated == 1 && $this->documentObject['cacheable'] == 1 && $this->documentObject['type'] == 'document' && $this->documentObject['published'] == 1) {
    		if (!empty($this->sjscripts)) $this->documentObject['__MODxSJScripts__'] = $this->sjscripts;
    		if (!empty($this->jscripts)) $this->documentObject['__MODxJScripts__'] = $this->jscripts;
        }

        // check for non-cached snippet output
        if (strpos($this->documentOutput, '[!') > -1) {
            $this->documentOutput= str_replace('[!', '[[', $this->documentOutput);
            $this->documentOutput= str_replace('!]', ']]', $this->documentOutput);

            // Parse document source
            $this->documentOutput= $this->parseDocumentSource($this->documentOutput);
    	}

    	// Moved from prepareResponse() by sirlancelot
    	// Insert Startup jscripts & CSS scripts into template - template must have a <head> tag
    	if ($js= $this->getRegisteredClientStartupScripts()) {
    		// change to just before closing </head>
    		// $this->documentContent = preg_replace("/(<head[^>]*>)/i", "\\1\n".$js, $this->documentContent);
    		$this->documentOutput= preg_replace("/(<\/head>)/i", $js . "\n\\1", $this->documentOutput);
    	}

    	// Insert jscripts & html block into template - template must have a </body> tag
    	if ($js= $this->getRegisteredClientScripts()) {
    		$this->documentOutput= preg_replace("/(<\/body>)/i", $js . "\n\\1", $this->documentOutput);
    	}
    	// End fix by sirlancelot

        // remove all unused placeholders
        if (strpos($this->documentOutput, '[+') > -1) {
            $matches= array ();
            preg_match_all('~\[\+(.*?)\+\]~', $this->documentOutput, $matches);
            if ($matches[0])
                $this->documentOutput= str_replace($matches[0], '', $this->documentOutput);
        }

        $this->documentOutput= $this->rewriteUrls($this->documentOutput);

        // send out content-type and content-disposition headers
        if (IN_PARSER_MODE == "true") {
            $type= !empty ($this->contentTypes[$this->documentIdentifier]) ? $this->contentTypes[$this->documentIdentifier] : "text/html";
            header('Content-Type: ' . $type . '; charset=' . $this->config['modx_charset']);
//            if (($this->documentIdentifier == $this->config['error_page']) || $redirect_error)
//                header('HTTP/1.0 404 Not Found');
            if (!$this->checkPreview() && $this->documentObject['content_dispo'] == 1) {
                if ($this->documentObject['alias'])
                    $name= $this->documentObject['alias'];
                else {
                    // strip title of special characters
                    $name= $this->documentObject['pagetitle'];
                    $name= strip_tags($name);
                    $name= strtolower($name);
                    $name= preg_replace('/&.+?;/', '', $name); // kill entities
                    $name= preg_replace('/[^\.%a-z0-9 _-]/', '', $name);
                    $name= preg_replace('/\s+/', '-', $name);
                    $name= preg_replace('|-+|', '-', $name);
                    $name= trim($name, '-');
                }
                $header= 'Content-Disposition: attachment; filename=' . $name;
                header($header);
            }
        }

        $totalTime= ($this->getMicroTime() - $this->tstart);
        $queryTime= $this->queryTime;
        $phpTime= $totalTime - $queryTime;

        $queryTime= sprintf("%2.4f s", $queryTime);
        $totalTime= sprintf("%2.4f s", $totalTime);
        $phpTime= sprintf("%2.4f s", $phpTime);
        $source= $this->documentGenerated == 1 ? "database" : "cache";
        $queries= isset ($this->executedQueries) ? $this->executedQueries : 0;

        $out =& $this->documentOutput;
        if ($this->dumpSQL) {
            $out .= $this->queryCode;
        }
        $out= str_replace("[^q^]", $queries, $out);
        $out= str_replace("[^qt^]", $queryTime, $out);
        $out= str_replace("[^p^]", $phpTime, $out);
        $out= str_replace("[^t^]", $totalTime, $out);
        $out= str_replace("[^s^]", $source, $out);
        //$this->documentOutput= $out;

        // invoke OnWebPagePrerender event
        if (!$noEvent) {
            $this->invokeEvent("OnWebPagePrerender");
        }

        echo $this->documentOutput;
        ob_end_flush();
    }

    function checkPublishStatus() {
        $cacheRefreshTime= 0;
        @include $this->config["base_path"] . "assets/cache/sitePublishing.idx.php";
        $timeNow= time() + $this->config['server_offset_time'];
        if ($cacheRefreshTime <= $timeNow && $cacheRefreshTime != 0) {
            // now, check for documents that need publishing
            $sql = "UPDATE ".$this->getFullTableName("site_content")." SET published=1, publishedon=".time()." WHERE ".$this->getFullTableName("site_content").".pub_date <= $timeNow AND ".$this->getFullTableName("site_content").".pub_date!=0 AND published=0";
            if (@ !$result= $this->db->query($sql)) {
                $this->messageQuit("Execution of a query to the database failed", $sql);
            }

            // now, check for documents that need un-publishing
            $sql= "UPDATE " . $this->getFullTableName("site_content") . " SET published=0, publishedon=0 WHERE " . $this->getFullTableName("site_content") . ".unpub_date <= $timeNow AND " . $this->getFullTableName("site_content") . ".unpub_date!=0 AND published=1";
            if (@ !$result= $this->db->query($sql)) {
                $this->messageQuit("Execution of a query to the database failed", $sql);
            }

            // clear the cache
            $basepath= $this->config["base_path"] . "assets/cache/";
            if ($handle= opendir($basepath)) {
                $filesincache= 0;
                $deletedfilesincache= 0;
                while (false !== ($file= readdir($handle))) {
                    if ($file != "." && $file != "..") {
                        $filesincache += 1;
                        if (preg_match("/\.pageCache/", $file)) {
                            $deletedfilesincache += 1;
                            while (!unlink($basepath . "/" . $file));
                        }
                    }
                }
                closedir($handle);
            }

            // update publish time file
            $timesArr= array ();
            $sql= "SELECT MIN(pub_date) AS minpub FROM " . $this->getFullTableName("site_content") . " WHERE pub_date>$timeNow";
            if (@ !$result= $this->db->query($sql)) {
                $this->messageQuit("Failed to find publishing timestamps", $sql);
            }
            $tmpRow= $this->db->getRow($result);
            $minpub= $tmpRow['minpub'];
            if ($minpub != NULL) {
                $timesArr[]= $minpub;
            }

            $sql= "SELECT MIN(unpub_date) AS minunpub FROM " . $this->getFullTableName("site_content") . " WHERE unpub_date>$timeNow";
            if (@ !$result= $this->db->query($sql)) {
                $this->messageQuit("Failed to find publishing timestamps", $sql);
            }
            $tmpRow= $this->db->getRow($result);
            $minunpub= $tmpRow['minunpub'];
            if ($minunpub != NULL) {
                $timesArr[]= $minunpub;
            }

            if (count($timesArr) > 0) {
                $nextevent= min($timesArr);
            } else {
                $nextevent= 0;
            }

            $basepath= $this->config["base_path"] . "assets/cache";
            $fp= @ fopen($basepath . "/sitePublishing.idx.php", "wb");
            if ($fp) {
                @ flock($fp, LOCK_EX);
                @ fwrite($fp, "<?php \$cacheRefreshTime=$nextevent; ?>");
                @ flock($fp, LOCK_UN);
                @ fclose($fp);
            }
        }
    }

    function postProcess() {
        // if the current document was generated, cache it!
        if ($this->documentGenerated == 1 && $this->documentObject['cacheable'] == 1 && $this->documentObject['type'] == 'document' && $this->documentObject['published'] == 1) {
            $basepath= $this->config["base_path"] . "assets/cache";
            // invoke OnBeforeSaveWebPageCache event
            $this->invokeEvent("OnBeforeSaveWebPageCache");
            if ($fp= @ fopen($basepath . "/docid_" . $this->documentIdentifier . ".pageCache.php", "w")) {
                // get and store document groups inside document object. Document groups will be used to check security on cache pages
                $sql= "SELECT document_group FROM " . $this->getFullTableName("document_groups") . " WHERE document='" . $this->documentIdentifier . "'";
                $docGroups= $this->db->getColumn("document_group", $sql);

				// Attach Document Groups and Scripts
				if (is_array($docGroups)) $this->documentObject['__MODxDocGroups__'] = implode(",", $docGroups);

                $docObjSerial= serialize($this->documentObject);
                $cacheContent= $docObjSerial . "<!--__MODxCacheSpliter__-->" . $this->documentContent;
                fputs($fp, "<?php die('Unauthorized access.'); ?>$cacheContent");
                fclose($fp);
            }
        }

        // Useful for example to external page counters/stats packages
        $this->invokeEvent('OnWebPageComplete');

        // end post processing
    }

    function mergeDocumentMETATags($template) {
        if ($this->documentObject['haskeywords'] == 1) {
            // insert keywords
            $keywords = $this->getKeywords();
            if (is_array($keywords) && count($keywords) > 0) {
	            $keywords = implode(", ", $keywords);
	            $metas= "\t<meta name=\"keywords\" content=\"$keywords\" />\n";
            }

	    // Don't process when cached
	    $this->documentObject['haskeywords'] = '0';
        }
        if ($this->documentObject['hasmetatags'] == 1) {
            // insert meta tags
            $tags= $this->getMETATags();
            foreach ($tags as $n => $col) {
                $tag= strtolower($col['tag']);
                $tagvalue= $col['tagvalue'];
                $tagstyle= $col['http_equiv'] ? 'http-equiv' : 'name';
                $metas .= "\t<meta $tagstyle=\"$tag\" content=\"$tagvalue\" />\n";
            }

	    // Don't process when cached
	    $this->documentObject['hasmetatags'] = '0';
        }
	if ($metas) $template = preg_replace("/(<head>)/i", "\\1\n\t" . trim($metas), $template);
        return $template;
    }

    // mod by Raymond
    function mergeDocumentContent($template) {
        $replace= array ();
        preg_match_all('~\[\*(.*?)\*\]~', $template, $matches);
        $variableCount= count($matches[1]);
        $basepath= $this->config["base_path"] . "manager/includes";
        for ($i= 0; $i < $variableCount; $i++) {
            $key= $matches[1][$i];
            $key= substr($key, 0, 1) == '#' ? substr($key, 1) : $key; // remove # for QuickEdit format
            $value= $this->documentObject[$key];
            if (is_array($value)) {
                include_once $basepath . "/tmplvars.format.inc.php";
                include_once $basepath . "/tmplvars.commands.inc.php";
                $w= "100%";
                $h= "300";
                $value= getTVDisplayFormat($value[0], $value[1], $value[2], $value[3], $value[4]);
            }
            $replace[$i]= $value;
        }
        $template= str_replace($matches[0], $replace, $template);

        return $template;
    }

    function mergeSettingsContent($template) {
        $replace= array ();
        $matches= array ();
        if (preg_match_all('~\[\(([a-z\_]*?)\)\]~', $template, $matches)) {
            $settingsCount= count($matches[1]);
            for ($i= 0; $i < $settingsCount; $i++) {
                if (array_key_exists($matches[1][$i], $this->config))
                    $replace[$i]= $this->config[$matches[1][$i]];
            }

            $template= str_replace($matches[0], $replace, $template);
        }
        return $template;
    }

    function mergeChunkContent($content) {
        $replace= array ();
        $matches= array ();
        if (preg_match_all('~{{(.*?)}}~', $content, $matches)) {
            $settingsCount= count($matches[1]);
            for ($i= 0; $i < $settingsCount; $i++) {
                if (isset ($this->chunkCache[$matches[1][$i]])) {
                    $replace[$i]= $this->chunkCache[$matches[1][$i]];
                } else {
                    $sql= "SELECT `snippet` FROM " . $this->getFullTableName("site_htmlsnippets") . " WHERE " . $this->getFullTableName("site_htmlsnippets") . ".`name`='" . $this->db->escape($matches[1][$i]) . "';";
                    $result= $this->db->query($sql);
                    $limit= $this->db->getRecordCount($result);
                    if ($limit < 1) {
                        $this->chunkCache[$matches[1][$i]]= "";
                        $replace[$i]= "";
                    } else {
                        $row= $this->db->getRow($result);
                        $this->chunkCache[$matches[1][$i]]= $row['snippet'];
                        $replace[$i]= $row['snippet'];
                    }
                }
            }
            $content= str_replace($matches[0], $replace, $content);
        }
        return $content;
    }

    // Added by Raymond
    function mergePlaceholderContent($content) {
        $replace= array ();
        $matches= array ();
        if (preg_match_all('~\[\+(.*?)\+\]~', $content, $matches)) {
            $cnt= count($matches[1]);
            for ($i= 0; $i < $cnt; $i++) {
                $v= '';
                $key= $matches[1][$i];
                if (is_array($this->placeholders) && array_key_exists($key, $this->placeholders))
                    $v= $this->placeholders[$key];
                if ($v === '')
                    unset ($matches[0][$i]); // here we'll leave empty placeholders for last.
                else
                    $replace[$i]= $v;
            }
            $content= str_replace($matches[0], $replace, $content);
        }
        return $content;
    }

    // evalPlugin
    function evalPlugin($pluginCode, $params) {
        $etomite= $modx= & $this;
        $modx->event->params= & $params; // store params inside event object
        if (is_array($params)) {
            extract($params, EXTR_SKIP);
        }
        ob_start();
        eval ($pluginCode);
        $msg= ob_get_contents();
        ob_end_clean();
        if ($msg && isset ($php_errormsg)) {
            if (!strpos($php_errormsg, 'Deprecated')) { // ignore php5 strict errors
                // log error
                $this->logEvent(1, 3, "<b>$php_errormsg</b><br /><br /> $msg", $this->Event->activePlugin . " - Plugin");
                if ($this->isBackend())
                    $this->Event->alert("An error occurred while loading. Please see the event log for more information.<p />$msg");
            }
        } else {
            echo $msg;
        }
        unset ($modx->event->params);
    }

    function evalSnippet($snippet, $params) {
        $etomite= $modx= & $this;

        $modx->event->params= & $params; // store params inside event object
        if (is_array($params)) {
            extract($params, EXTR_SKIP);
        }
        ob_start();
        $snip= eval ($snippet);
        $msg= ob_get_contents();
        ob_end_clean();
        if ($msg && isset ($php_errormsg)) {
            if (!strpos($php_errormsg, 'Deprecated')) { // ignore php5 strict errors
                // log error
                $this->logEvent(1, 3, "<b>$php_errormsg</b><br /><br /> $msg", $this->currentSnippet . " - Snippet");
                if ($this->isBackend())
                    $this->Event->alert("An error occurred while loading. Please see the event log for more information<p />$msg");
            }
        }
        unset ($modx->event->params);
        return $msg . $snip;
    }

    function evalSnippets($documentSource) {
        preg_match_all('~\[\[(.*?)\]\]~ms', $documentSource, $matches);

        $etomite= & $this;

        if ($matchCount= count($matches[1])) {
            for ($i= 0; $i < $matchCount; $i++) {
                $spos= strpos($matches[1][$i], '?', 0);
                if ($spos !== false) {
                    $params= substr($matches[1][$i], $spos, strlen($matches[1][$i]));
                } else {
                    $params= '';
                }
                $matches[1][$i]= str_replace($params, '', $matches[1][$i]);
                $snippetParams[$i]= $params;
            }
            $nrSnippetsToGet= $matchCount;
            for ($i= 0; $i < $nrSnippetsToGet; $i++) { // Raymond: Mod for Snippet props
                if (isset ($this->snippetCache[$matches[1][$i]])) {
                    $snippets[$i]['name']= $matches[1][$i];
                    $snippets[$i]['snippet']= $this->snippetCache[$matches[1][$i]];
                    if (array_key_exists($matches[1][$i] . "Props", $this->snippetCache))
                        $snippets[$i]['properties']= $this->snippetCache[$matches[1][$i] . "Props"];
                } else {
                    // get from db and store a copy inside cache
                    $sql= "SELECT `name`, `snippet`, `properties` FROM " . $this->getFullTableName("site_snippets") . " WHERE " . $this->getFullTableName("site_snippets") . ".`name`='" . $this->db->escape($matches[1][$i]) . "';";
                    $result= $this->db->query($sql);
                    $added = false;
                    if ($this->db->getRecordCount($result) == 1) {
                        $row= $this->db->getRow($result);
                        if($row['name'] == $matches[1][$i]) {
                            $snippets[$i]['name']= $row['name'];
                            $snippets[$i]['snippet']= $this->snippetCache[$row['name']]= $row['snippet'];
                            $snippets[$i]['properties']= $this->snippetCache[$row['name'] . "Props"]= $row['properties'];
                            $added = true;
                        }
                    }
                    if(!$added) {
                        $snippets[$i]['name']= $matches[1][$i];
                        $snippets[$i]['snippet']= $this->snippetCache[$matches[1][$i]]= "return false;";
                        $snippets[$i]['properties']= '';
                    }
                }
            }

            for ($i= 0; $i < $nrSnippetsToGet; $i++) {
                $parameter= array ();
                $snippetName= $this->currentSnippet= $snippets[$i]['name'];
                // FIXME Undefined index: properties
                if (array_key_exists('properties', $snippets[$i])) {
                    $snippetProperties= $snippets[$i]['properties'];
                } else {
                    $snippetProperties= '';
                }
                // load default params/properties - Raymond
                // FIXME Undefined variable: snippetProperties
                $parameter= $this->parseProperties($snippetProperties);
                // current params
                $currentSnippetParams= $snippetParams[$i];
                if (!empty ($currentSnippetParams)) {
                    $tempSnippetParams= str_replace("?", "", $currentSnippetParams);
                    $splitter= "&";
                    if (strpos($tempSnippetParams, "&amp;") > 0)
                        $tempSnippetParams= str_replace("&amp;", "&", $tempSnippetParams);
                    //$tempSnippetParams = html_entity_decode($tempSnippetParams, ENT_NOQUOTES, $this->config['etomite_charset']); //FS#334 and FS#456
                    $tempSnippetParams= explode($splitter, $tempSnippetParams);
                    $snippetParamCount= count($tempSnippetParams);
                    for ($x= 0; $x < $snippetParamCount; $x++) {
                        if (strpos($tempSnippetParams[$x], '=', 0)) {
                            if ($parameterTemp= explode("=", $tempSnippetParams[$x])) {
                                $parameterTemp[0] = trim($parameterTemp[0]);
                                $parameterTemp[1] = trim($parameterTemp[1]);
                                $fp= strpos($parameterTemp[1], '`');
                                $lp= strrpos($parameterTemp[1], '`');
                                if (!($fp === false && $lp === false))
                                    $parameterTemp[1]= substr($parameterTemp[1], $fp +1, $lp -1);
                                $parameter[$parameterTemp[0]]= $parameterTemp[1];
                            }
                        }
                    }
                }
                $executedSnippets[$i]= $this->evalSnippet($snippets[$i]['snippet'], $parameter);
                if ($this->dumpSnippets == 1) {
                    echo "<fieldset><legend><b>$snippetName</b></legend><textarea style='width:60%; height:200px'>" . htmlentities($executedSnippets[$i]) . "</textarea></fieldset><br />";
                }
                $documentSource= str_replace("[[" . $snippetName . $currentSnippetParams . "]]", $executedSnippets[$i], $documentSource);
            }
        }
        return $documentSource;
    }

    function makeFriendlyURL($pre, $suff, $alias) {
        $Alias = explode('/',$alias);
        $alias = array_pop($Alias);
        $dir = implode('/', $Alias);
        unset($Alias);
        return ($dir != '' ? "$dir/" : '') . $pre . $alias . $suff;
    }

    function rewriteUrls($documentSource) {
        // rewrite the urls
        if ($this->config['friendly_urls'] == 1) {
            $aliases= array ();
            foreach ($this->aliasListing as $item) {
                $aliases[$item['id']]= (strlen($item['path']) > 0 ? $item['path'] . '/' : '') . $item['alias'];
            }
            $in= '!\[\~([0-9]+)\~\]!ise'; // Use preg_replace with /e to make it evaluate PHP
            $isfriendly= ($this->config['friendly_alias_urls'] == 1 ? 1 : 0);
            $pref= $this->config['friendly_url_prefix'];
            $suff= $this->config['friendly_url_suffix'];
            $thealias= '$aliases[\\1]';
            $found_friendlyurl= "\$this->makeFriendlyURL('$pref','$suff',$thealias)";
            $not_found_friendlyurl= "\$this->makeFriendlyURL('$pref','$suff','" . '\\1' . "')";
            $out= "({$isfriendly} && isset({$thealias}) ? {$found_friendlyurl} : {$not_found_friendlyurl})";
            $documentSource= preg_replace($in, $out, $documentSource);
        } else {
            $in= '!\[\~([0-9]+)\~\]!is';
            $out= "index.php?id=" . '\1';
            $documentSource= preg_replace($in, $out, $documentSource);
        }
        return $documentSource;
    }

    /**
     * name: getDocumentObject  - used by parser
     * desc: returns a document object - $method: alias, id
     */
    function getDocumentObject($method, $identifier) {
        $tblsc= $this->getFullTableName("site_content");
        $tbldg= $this->getFullTableName("document_groups");

        // allow alias to be full path
        if($method == 'alias') {
            $identifier = $this->cleanDocumentIdentifier($identifier);
            $method = $this->documentMethod;
        }
        if($method == 'alias' && $this->config['use_alias_path'] && array_key_exists($identifier, $this->documentListing)) {
            $method = 'id';
            $identifier = $this->documentListing[$identifier];
        }
        // get document groups for current user
        if ($docgrp= $this->getUserDocGroups())
            $docgrp= implode(",", $docgrp);
        // get document
        $access= ($this->isFrontend() ? "sc.privateweb=0" : "1='" . $_SESSION['mgrRole'] . "' OR sc.privatemgr=0") .
         (!$docgrp ? "" : " OR dg.document_group IN ($docgrp)");
        $sql= "SELECT sc.*
              FROM $tblsc sc
              LEFT JOIN $tbldg dg ON dg.document = sc.id
              WHERE sc." . $method . " = '" . $identifier . "'
              AND ($access) LIMIT 1;";
        $result= $this->db->query($sql);
        $rowCount= $this->db->getRecordCount($result);
        if ($rowCount < 1) {
            if ($this->config['unauthorized_page']) {
                // method may still be alias, while identifier is not full path alias, e.g. id not found above
                if ($method === 'alias') {
                    $q = "SELECT dg.id FROM $tbldg dg, $tblsc sc WHERE dg.document = sc.id AND sc.alias = '{$identifier}' LIMIT 1;";
                } else {
                    $q = "SELECT id FROM $tbldg WHERE document = '{$identifier}' LIMIT 1;";
                }
                // check if file is not public
                $secrs= $this->db->query($q);
                if ($secrs)
                    $seclimit= mysql_num_rows($secrs);
            }
            if ($seclimit > 0) {
                // match found but not publicly accessible, send the visitor to the unauthorized_page
                $this->sendUnauthorizedPage();
                exit; // stop here
            } else {
                $this->sendErrorPage();
                exit;
            }
        }

        # this is now the document :) #
        $documentObject= $this->db->getRow($result);

        // load TVs and merge with document - Orig by Apodigm - Docvars
        $sql= "SELECT tv.*, IF(tvc.value!='',tvc.value,tv.default_text) as value ";
        $sql .= "FROM " . $this->getFullTableName("site_tmplvars") . " tv ";
        $sql .= "INNER JOIN " . $this->getFullTableName("site_tmplvar_templates")." tvtpl ON tvtpl.tmplvarid = tv.id ";
        $sql .= "LEFT JOIN " . $this->getFullTableName("site_tmplvar_contentvalues")." tvc ON tvc.tmplvarid=tv.id AND tvc.contentid = '" . $documentObject['id'] . "' ";
        $sql .= "WHERE tvtpl.templateid = '" . $documentObject['template'] . "'";
        $rs= $this->db->query($sql);
        $rowCount= $this->db->getRecordCount($rs);
        if ($rowCount > 0) {
            for ($i= 0; $i < $rowCount; $i++) {
                $row= $this->db->getRow($rs);
                $tmplvars[$row['name']]= array (
                    $row['name'],
                    $row['value'],
                    $row['display'],
                    $row['display_params'],
                    $row['type']
                );
            }
            $documentObject= array_merge($documentObject, $tmplvars);
        }
        return $documentObject;
    }

    /**
     * name: parseDocumentSource - used by parser
     * desc: return document source aftering parsing tvs, snippets, chunks, etc.
     */
    function parseDocumentSource($source) {
        // set the number of times we are to parse the document source
        $this->minParserPasses= empty ($this->minParserPasses) ? 2 : $this->minParserPasses;
        $this->maxParserPasses= empty ($this->maxParserPasses) ? 10 : $this->maxParserPasses;
        $passes= $this->minParserPasses;
        for ($i= 0; $i < $passes; $i++) {
            // get source length if this is the final pass
            if ($i == ($passes -1))
                $st= strlen($source);
            if ($this->dumpSnippets == 1) {
                echo "<fieldset><legend><b style='color: #821517;'>PARSE PASS " . ($i +1) . "</b></legend>The following snippets (if any) were parsed during this pass.<div style='width:100%' align='center'>";
            }

            // invoke OnParseDocument event
            $this->documentOutput= $source; // store source code so plugins can
            $this->invokeEvent("OnParseDocument"); // work on it via $modx->documentOutput
            $source= $this->documentOutput;

            // combine template and document variables
            $source= $this->mergeDocumentContent($source);
            // replace settings referenced in document
            $source= $this->mergeSettingsContent($source);
            // replace HTMLSnippets in document
            $source= $this->mergeChunkContent($source);
	    // insert META tags & keywords
	    $source= $this->mergeDocumentMETATags($source);
            // find and merge snippets
            $source= $this->evalSnippets($source);
            // find and replace Placeholders (must be parsed last) - Added by Raymond
            $source= $this->mergePlaceholderContent($source);
            if ($this->dumpSnippets == 1) {
                echo "</div></fieldset><br />";
            }
            if ($i == ($passes -1) && $i < ($this->maxParserPasses - 1)) {
                // check if source length was changed
                $et= strlen($source);
                if ($st != $et)
                    $passes++; // if content change then increase passes because
            } // we have not yet reached maxParserPasses
        }
        return $source;
    }

    function executeParser() {
        //error_reporting(0);
        if (version_compare(phpversion(), "5.0.0", ">="))
            set_error_handler(array (
                & $this,
                "phpError"
            ), E_ALL);
        else
            set_error_handler(array (
                & $this,
                "phpError"
            ));

        $this->db->connect();

        // get the settings
        if (empty ($this->config)) {
            $this->getSettings();
        }

        // IIS friendly url fix
        if ($this->config['friendly_urls'] == 1 && strpos($_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS') !== false) {
            $url= $_SERVER['QUERY_STRING'];
            $err= substr($url, 0, 3);
            if ($err == '404' || $err == '405') {
                $k= array_keys($_GET);
                unset ($_GET[$k[0]]);
                unset ($_REQUEST[$k[0]]); // remove 404,405 entry
                $_SERVER['QUERY_STRING']= $qp['query'];
                $qp= parse_url(str_replace($this->config['site_url'], '', substr($url, 4)));
                if (!empty ($qp['query'])) {
                    parse_str($qp['query'], $qv);
                    foreach ($qv as $n => $v)
                        $_REQUEST[$n]= $_GET[$n]= $v;
                }
                $_SERVER['PHP_SELF']= $this->config['base_url'] . $qp['path'];
                $_REQUEST['q']= $_GET['q']= $qp['path'];
            }
        }

        // check site settings
        if (!$this->checkSiteStatus()) {
            header('HTTP/1.0 503 Service Unavailable');
            if (!$this->config['site_unavailable_page']) {
                // display offline message
                $this->documentContent= $this->config['site_unavailable_message'];
                $this->outputContent();
                exit; // stop processing here, as the site's offline
            } else {
                // setup offline page document settings
                $this->documentMethod= "id";
                $this->documentIdentifier= $this->config['site_unavailable_page'];
            }
        } else {
            // make sure the cache doesn't need updating
            $this->checkPublishStatus();

            // find out which document we need to display
            $this->documentMethod= $this->getDocumentMethod();
            $this->documentIdentifier= $this->getDocumentIdentifier($this->documentMethod);
        }

        if ($this->documentMethod == "none") {
            $this->documentMethod= "id"; // now we know the site_start, change the none method to id
        }
        if ($this->documentMethod == "alias") {
            $this->documentIdentifier= $this->cleanDocumentIdentifier($this->documentIdentifier);
        }

        if ($this->documentMethod == "alias") {
            // Check use_alias_path and check if $this->virtualDir is set to anything, then parse the path
            if ($this-…