/manager/processors/cache_sync.class.processor.php

<?php

// cache & synchronise class



class synccache{

    var $cachePath;

    var $showReport;

    var $deletedfiles = array();

    var $aliases = array();

    var $parents = array();

    var $aliasVisible = array();

	

	

    function setCachepath($path) {

        $this->cachePath = $path;

    }



    function setReport($bool) {

        $this->showReport = $bool;

    }



    function escapeDoubleQuotes($s) {

        $q1 = array("\\","\"","\r","\n","\$");

        $q2 = array("\\\\","\\\"","\\r","\\n","\\$");

        return str_replace($q1,$q2,$s);

    }



    function escapeSingleQuotes($s) {

        $q1 = array("\\","'");

        $q2 = array("\\\\","\\'");

        return str_replace($q1,$q2,$s);

    }



    function getParents($id, $path = '') { // modx:returns child's parent

        global $modx;

        if(empty($this->aliases)) {

            //$sql = "SELECT id, IF(alias='', id, alias) AS alias, parent FROM ".$modx->getFullTableName('site_content');

            $sql = "SELECT id, IF(alias='', id, alias) AS alias, parent, alias_visible FROM ".$modx->getFullTableName('site_content');

			

			$qh = $modx->db->query($sql);

            if ($qh && $modx->db->getRecordCount($qh) > 0)  {

                while ($row = $modx->db->getRow($qh)) {

                    $this->aliases[$row['id']] = $row['alias'];

                    $this->parents[$row['id']] = $row['parent'];

					$this->aliasVisible[$row['id']] = $row['alias_visible'];

                }

            }

        }

        if (isset($this->aliases[$id])) {

            $path = ($this->aliasVisible[$id] == 1 ? $this->aliases[$id] . ($path != '' ? '/' : '') . $path : $path);

            return $this->getParents($this->parents[$id], $path);

        }

        return $path;

    }



    function emptyCache($modx = null) {

        if((function_exists('is_a') && is_a($modx, 'DocumentParser') === false) || get_class($modx) !== 'DocumentParser') {

            $modx = $GLOBALS['modx'];

        }

        if(!isset($this->cachePath)) {

            echo "Cache path not set.";

            exit;

        }

        $filesincache = 0;

        $deletedfilesincache = 0;

        if (function_exists('glob')) {

            // New and improved!

            $files = glob(realpath($this->cachePath).'/*');

            $filesincache = count($files);

            $deletedfiles = array();

            while ($file = array_shift($files)) {

                $name = basename($file);

                if (preg_match('/\.pageCache/',$name) && !in_array($name, $deletedfiles)) {

                    $deletedfilesincache++;

                    $deletedfiles[] = $name;

                    unlink($file);

                }

            }

        } else {

            // Old way of doing it (no glob function available)

            if ($handle = opendir($this->cachePath)) {

                // Initialize deleted per round counter

                $deletedThisRound = 1;

                while ($deletedThisRound){

                    if(!$handle) $handle = opendir($this->cachePath);

                    $deletedThisRound = 0;

                    while (false !== ($file = readdir($handle))) {

                        if ($file != "." && $file != "..") {

                            $filesincache += 1;

                            if ( preg_match("/\.pageCache/", $file) && (!is_array($deletedfiles) || !array_search($file,$deletedfiles)) ) {

                                $deletedfilesincache += 1;

                                $deletedThisRound++;

                                $deletedfiles[] = $file;

                                unlink($this->cachePath.$file);

                            } // End if

                        } // End if

                    } // End while

                    closedir($handle);

                    $handle = '';

                } // End while ($deletedThisRound)

            }

        }



        $this->buildCache($modx);



/****************************************************************************/

/*  PUBLISH TIME FILE                                                       */

/****************************************************************************/



        // update publish time file

        $timesArr = array();

        $sql = 'SELECT MIN(pub_date) AS minpub FROM '.$modx->getFullTableName('site_content').' WHERE pub_date>'.time();

        if(@!$result = $modx->db->query($sql)) {

            echo 'Couldn\'t determine next publish event!';

        }



        $tmpRow = $modx->db->getRow($result);

        $minpub = $tmpRow['minpub'];

        if($minpub!=NULL) {

            $timesArr[] = $minpub;

        }



        $sql = 'SELECT MIN(unpub_date) AS minunpub FROM '.$modx->getFullTableName('site_content').' WHERE unpub_date>'.time();

        if(@!$result = $modx->db->query($sql)) {

            echo 'Couldn\'t determine next unpublish event!';

        }

        $tmpRow = $modx->db->getRow($result);

        $minunpub = $tmpRow['minunpub'];

        if($minunpub!=NULL) {

            $timesArr[] = $minunpub;

        }



        if(count($timesArr)>0) {

            $nextevent = min($timesArr);

        } else {

            $nextevent = 0;

        }



        // write the file

        $filename = $this->cachePath.'/sitePublishing.idx.php';

        $somecontent = '<?php $cacheRefreshTime='.$nextevent.'; ?>';



        if (!$handle = fopen($filename, 'w')) {

             echo 'Cannot open file ('.$filename.')';

             exit;

        }



        // Write $somecontent to our opened file.

        if (fwrite($handle, $somecontent) === FALSE) {

           echo 'Cannot write publishing info file! Make sure the assets/cache directory is writable!';

           exit;

        }



        fclose($handle);





/****************************************************************************/

/*  END OF PUBLISH TIME FILE                                                */

/****************************************************************************/



        // finished cache stuff.

        if($this->showReport==true) {

        global $_lang;

            printf($_lang['refresh_cache'], $filesincache, $deletedfilesincache);

            $limit = count($deletedfiles);

            if($limit > 0) {

                echo '<p>'.$_lang['cache_files_deleted'].'</p><ul>';

                for($i=0;$i<$limit; $i++) {

                    echo '<li>',$deletedfiles[$i],'</li>';

                }

                echo '</ul>';

            }

        }

    }



    /**

     * build siteCache file

     * @param  DocumentParser $modx

     * @return boolean success

     */

    function buildCache($modx) {

        $tmpPHP = "<?php\n";



        // SETTINGS & DOCUMENT LISTINGS CACHE



        // get settings

        $sql = 'SELECT * FROM '.$modx->getFullTableName('system_settings');

        $rs = $modx->db->query($sql);

        $limit_tmp = $modx->db->getRecordCount($rs);

        $config = array();

        $tmpPHP .= '$c=&$this->config;'."\n";

        while(list($key,$value) = $modx->db->getRow($rs,'num')) {

            $tmpPHP .= '$c[\''.$key.'\']'.' = "'.$this->escapeDoubleQuotes($value)."\";\n";

            $config[$key] = $value;

        }



        // get aliases modx: support for alias path

        $tmpPath = '';

        $tmpPHP .= '$this->aliasListing = array();' . "\n";

        $tmpPHP .= '$a = &$this->aliasListing;' . "\n";

        $tmpPHP .= '$d = &$this->documentListing;' . "\n";

        $tmpPHP .= '$m = &$this->documentMap;' . "\n";

        $sql = 'SELECT IF(alias=\'\', id, alias) AS alias, id, contentType, parent FROM '.$modx->getFullTableName('site_content').' WHERE deleted=0 ORDER BY parent, menuindex';

        $rs = $modx->db->query($sql);

        $limit_tmp = $modx->db->getRecordCount($rs);

        for ($i_tmp=0; $i_tmp<$limit_tmp; $i_tmp++) {

            $tmp1 = $modx->db->getRow($rs);

            if ($config['friendly_urls'] == 1 && $config['use_alias_path'] == 1) {

                $tmpPath = $this->getParents($tmp1['parent']);

                $alias= (strlen($tmpPath) > 0 ? "$tmpPath/" : '').$tmp1['alias'];

                $alias= $modx->db->escape($alias);

                $tmpPHP .= '$d[\''.$alias.'\']'." = ".$tmp1['id'].";\n";

            }

            else {

                $tmpPHP .= '$d[\''.$modx->db->escape($tmp1['alias']).'\']'." = ".$tmp1['id'].";\n";

            }

            $tmpPHP .= '$a[' . $tmp1['id'] . ']'." = array('id' => ".$tmp1['id'].", 'alias' => '".$modx->db->escape($tmp1['alias'])."', 'path' => '" . $modx->db->escape($tmpPath)."', 'parent' => " . $tmp1['parent']. ");\n";

            $tmpPHP .= '$m[]'." = array('".$tmp1['parent']."' => '".$tmp1['id']."');\n";

        }





        // get content types

        $sql = 'SELECT id, contentType FROM '.$modx->getFullTableName('site_content')." WHERE contentType != 'text/html'";

        $rs = $modx->db->query($sql);

        $limit_tmp = $modx->db->getRecordCount($rs);

        $tmpPHP .= '$c = &$this->contentTypes;' . "\n";

        for ($i_tmp=0; $i_tmp<$limit_tmp; $i_tmp++) {

           $tmp1 = $modx->db->getRow($rs);

           $tmpPHP .= '$c['.$tmp1['id'].']'." = '".$tmp1['contentType']."';\n";

        }



        // WRITE Chunks to cache file

        $sql = 'SELECT * FROM '.$modx->getFullTableName('site_htmlsnippets');

        $rs = $modx->db->query($sql);

        $limit_tmp = $modx->db->getRecordCount($rs);

        $tmpPHP .= '$c = &$this->chunkCache;' . "\n";

        for ($i_tmp=0; $i_tmp<$limit_tmp; $i_tmp++) {

           $tmp1 = $modx->db->getRow($rs);

           $tmpPHP .= '$c[\''.$modx->db->escape($tmp1['name']).'\']'." = '".$this->escapeSingleQuotes($tmp1['snippet'])."';\n";

        }



        // WRITE snippets to cache file

        $sql = 'SELECT ss.*,sm.properties as `sharedproperties` '.

                'FROM '.$modx->getFullTableName('site_snippets').' ss '.

                'LEFT JOIN '.$modx->getFullTableName('site_modules').' sm on sm.guid=ss.moduleguid';

        $rs = $modx->db->query($sql);

        $limit_tmp = $modx->db->getRecordCount($rs);

        $tmpPHP .= '$s = &$this->snippetCache;' . "\n";

        for ($i_tmp=0; $i_tmp<$limit_tmp; $i_tmp++) {

           $tmp1 = $modx->db->getRow($rs);

           $tmpPHP .= '$s[\''.$modx->db->escape($tmp1['name']).'\']'." = '".$this->escapeSingleQuotes($tmp1['snippet'])."';\n";

           // Raymond: save snippet properties to cache

           if ($tmp1['properties']!=""||$tmp1['sharedproperties']!="") $tmpPHP .= '$s[\''.$tmp1['name'].'Props\']'." = '".$this->escapeSingleQuotes($tmp1['properties']." ".$tmp1['sharedproperties'])."';\n";

           // End mod

        }



        // WRITE plugins to cache file

        $sql = 'SELECT sp.*,sm.properties as `sharedproperties`'.

                'FROM '.$modx->getFullTableName('site_plugins').' sp '.

                'LEFT JOIN '.$modx->getFullTableName('site_modules').' sm on sm.guid=sp.moduleguid '.

                'WHERE sp.disabled=0';

        $rs = $modx->db->query($sql);

        $limit_tmp = $modx->db->getRecordCount($rs);

        $tmpPHP .= '$p = &$this->pluginCache;' . "\n";

        for ($i_tmp=0; $i_tmp<$limit_tmp; $i_tmp++) {

           $tmp1 = $modx->db->getRow($rs);

           $tmpPHP .= '$p[\''.$modx->db->escape($tmp1['name']).'\']'." = '".$this->escapeSingleQuotes($tmp1['plugincode'])."';\n";

           if ($tmp1['properties']!=''||$tmp1['sharedproperties']!='') $tmpPHP .= '$p[\''.$tmp1['name'].'Props\']'." = '".$this->escapeSingleQuotes($tmp1['properties'].' '.$tmp1['sharedproperties'])."';\n";

        }





        // WRITE system event triggers

        $sql = 'SELECT sysevt.name as `evtname`, pe.pluginid, plugs.name

                FROM '.$modx->getFullTableName('system_eventnames').' sysevt

                INNER JOIN '.$modx->getFullTableName('site_plugin_events').' pe ON pe.evtid = sysevt.id

                INNER JOIN '.$modx->getFullTableName('site_plugins').' plugs ON plugs.id = pe.pluginid

                WHERE plugs.disabled=0

                ORDER BY sysevt.name,pe.priority';

        $events = array();

        $rs = $modx->db->query($sql);

        $limit_tmp = $modx->db->getRecordCount($rs);

        $tmpPHP .= '$e = &$this->pluginEvent;' . "\n";

        for ($i=0; $i<$limit_tmp; $i++) {

            $evt = $modx->db->getRow($rs);

            if(!$events[$evt['evtname']]) $events[$evt['evtname']] = array();

            $events[$evt['evtname']][] = $evt['name'];

        }

        foreach($events as $evtname => $pluginnames) {

            $tmpPHP .= '$e[\''.$evtname.'\'] = array(\''.implode("','",$this->escapeSingleQuotes($pluginnames))."');\n";

        }



        // close and write the file

        $tmpPHP .= "\n";

        $filename = $this->cachePath.'siteCache.idx.php';

        $somecontent = $tmpPHP;



        // invoke OnBeforeCacheUpdate event

        if ($modx) $modx->invokeEvent('OnBeforeCacheUpdate');



        if (!$handle = fopen($filename, 'w')) {

             echo 'Cannot open file (',$filename,')';

             exit;

        }



        // Write $somecontent to our opened file.

        if (fwrite($handle, $somecontent) === FALSE) {

           echo 'Cannot write main MODx cache file! Make sure the assets/cache directory is writable!';

           exit;

        }

        fclose($handle);



        // invoke OnCacheUpdate event

        if ($modx) $modx->invokeEvent('OnCacheUpdate');



        return true;

    }

}

?>