175 lines
4.8 KiB
PHP
175 lines
4.8 KiB
PHP
<?php
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/**
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* Global initialization script.
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*
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* @package amo
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* @subpackage docs
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*/
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/**
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* Require our config.
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*/
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require_once('config.php');
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/**
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* Set runtime options.
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*/
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ini_set('display_errors',DISPLAY_ERRORS);
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ini_set('error_reporting',ERROR_REPORTING);
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ini_set('magic_quotes_gpc',0);
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/**
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* Name of the current script.
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*
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* This is used in important comparisons with $shadow_config and $cache_config,
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* so it was pulled out of config.php so it's immutable.
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*/
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define('SCRIPT_NAME',basename($_SERVER['PHP_SELF']));
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/**
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* Page output caching.
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*
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* First we will create a memcache object.
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* Second, we will check to see if the cache has already been compiled for our ID.
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* This is all done before anything else happens because we want to save cycles.
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*/
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/**
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* Set our memcacheId based on our params.
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* We'll keep it around even if we aren't using the cache.
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*/
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$memcacheId = md5(SCRIPT_NAME.$_SERVER['QUERY_STRING']);
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/**
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* Check the cache_config to see if the current page is supposed to be cached.
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* If it is, try to connect. If connection to the cache server fails, fall back on regular runtime.
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* We also are storing the status of the connection in $memcacheConnected for use in finish.php.
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*/
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if (!empty($cache_config[SCRIPT_NAME]) && class_exists('Memcache') ) {
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/**
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* Instantiate our memcache object.
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*/
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$cache = new Memcache();
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/**
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* Boolean so we know whether or not we've found a valid memcached server.
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*/
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$memcacheConnected = false;
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if (is_array($memcache_config)) {
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foreach ($memcache_config as $host=>$options) {
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if ($cache->addServer($host, $options['port'], $options['persistent'], $options['weight'], $options['timeout'], $options['retry_interval'])) {
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$memcacheConnected = true;
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}
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}
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}
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if ($memcacheConnected) {
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// If our page is already cached, display from cache and exit.
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if ($cacheData = $cache->get($memcacheId)) {
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// If we have specified a custom content-type for this script, echo the header here.
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if (!empty($contentType_config[SCRIPT_NAME])) {
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header('Content-type: '.$contentType_config[SCRIPT_NAME]);
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}
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echo $cacheData;
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exit;
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}
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} else {
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/**
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* If we get here, it means we were supposed to read from cache, but couldn't connect to memcached.
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* Log the message, then continue with runtime.
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*/
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error_log('Memcache Error: Unable connect to memcache server. Please check configuration and try again.');
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}
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}
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/**
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* Set up global variables.
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*/
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$tpl = null; // Smarty.
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$content = null; // Name of .tpl file to be called for content.
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$pageType = null; // Wrapper type for wrapping content .tpl.
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$cacheId = null; // Name of the page cache for use with Smarty caching.
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$currentTab = null; // Name of the currentTab selected in the header.tpl. This is also the cacheId for header.tpl.
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$compileId = null; // Name of the compileId for use with Smarty caching.
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$clean = array(); // General array for verified inputs. These variables should not be formatted for a specific medium.
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$sql = array(); // Trusted for SQL. Items in this array must be trusted through logic or through escaping.
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/**
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* CompileId is used for the compiled template generated by Smarty.
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* If app is not a valid format, not set or just empty, set it to firefox.
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*/
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$compileId = (!empty($_GET['app']) && ctype_alpha($_GET['app'])) ? $_GET['app'] : 'firefox';
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$app = $compileId;
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/**
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* Smarty configuration.
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*
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* Include Smarty class. If we get here, we're going to generate the page.
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*/
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require_once(SMARTY_BASEDIR.'/Smarty.class.php'); // Smarty
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/**
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* Smarty configuration.
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*/
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class AMO_Smarty extends Smarty
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{
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function AMO_Smarty()
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{
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$this->template_dir = TEMPLATE_DIR;
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$this->compile_dir = COMPILE_DIR;
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$this->cache_dir = CACHE_DIR;
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$this->config_dir = CONFIG_DIR;
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// Pass config variables to Smarty object.
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$this->assign('config',
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array( 'webpath' => WEB_PATH,
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'rootpath' => ROOT_PATH,
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'host' => HTTP_HOST)
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);
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}
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}
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/**
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* Begin template processing.
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*
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* @param string $aTplName name of the template to process
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* @param string $aCacheId name of the cache to check - this corresponds to other $_GET params
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* @param string $aCompileId name of the compileId to check - this is $_GET['app']
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* @param string $aPageType type of the page - nonav, default, etc.
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*/
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function startProcessing($aTplName, $aCacheId, $aCompileId, $aPageType='default')
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{
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// Pass in our global variables.
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global $tpl, $pageType, $content, $cacheId, $compileId, $cache_config;
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$pageType = $aPageType;
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$content = $aTplName;
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$cacheId = $aCacheId;
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$compileId = $aCompileId;
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$tpl = new AMO_Smarty();
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}
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?>
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