packages/ssoinabox-webui/root/usr/local/share/ssoinabox/htdocs/includes/smarty/sysplugins/smarty_cacheresource.php
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/packages/ssoinabox-webui/root/usr/local/share/ssoinabox/htdocs/includes/smarty/sysplugins/smarty_cacheresource.php Tue Jan 08 23:13:29 2013 -0500
@@ -0,0 +1,381 @@
+<?php
+/**
+* Smarty Internal Plugin
+*
+* @package Smarty
+* @subpackage Cacher
+*/
+
+/**
+* Cache Handler API
+*
+* @package Smarty
+* @subpackage Cacher
+* @author Rodney Rehm
+*/
+abstract class Smarty_CacheResource {
+ /**
+ * cache for Smarty_CacheResource instances
+ * @var array
+ */
+ public static $resources = array();
+
+ /**
+ * resource types provided by the core
+ * @var array
+ */
+ protected static $sysplugins = array(
+ 'file' => true,
+ );
+
+ /**
+ * populate Cached Object with meta data from Resource
+ *
+ * @param Smarty_Template_Cached $cached cached object
+ * @param Smarty_Internal_Template $_template template object
+ * @return void
+ */
+ public abstract function populate(Smarty_Template_Cached $cached, Smarty_Internal_Template $_template);
+
+ /**
+ * populate Cached Object with timestamp and exists from Resource
+ *
+ * @param Smarty_Template_Cached $source cached object
+ * @return void
+ */
+ public abstract function populateTimestamp(Smarty_Template_Cached $cached);
+
+ /**
+ * Read the cached template and process header
+ *
+ * @param Smarty_Internal_Template $_template template object
+ * @param Smarty_Template_Cached $cached cached object
+ * @return booelan true or false if the cached content does not exist
+ */
+ public abstract function process(Smarty_Internal_Template $_template, Smarty_Template_Cached $cached=null);
+
+ /**
+ * Write the rendered template output to cache
+ *
+ * @param Smarty_Internal_Template $_template template object
+ * @param string $content content to cache
+ * @return boolean success
+ */
+ public abstract function writeCachedContent(Smarty_Internal_Template $_template, $content);
+
+ /**
+ * Return cached content
+ *
+ * @param Smarty_Internal_Template $_template template object
+ * @param string $content content of cache
+ */
+ public function getCachedContent(Smarty_Internal_Template $_template)
+ {
+ if ($_template->cached->handler->process($_template)) {
+ ob_start();
+ $_template->properties['unifunc']($_template);
+ return ob_get_clean();
+ }
+ return null;
+ }
+
+ /**
+ * Empty cache
+ *
+ * @param Smarty $smarty Smarty object
+ * @param integer $exp_time expiration time (number of seconds, not timestamp)
+ * @return integer number of cache files deleted
+ */
+ public abstract function clearAll(Smarty $smarty, $exp_time=null);
+
+ /**
+ * Empty cache for a specific template
+ *
+ * @param Smarty $smarty Smarty object
+ * @param string $resource_name template name
+ * @param string $cache_id cache id
+ * @param string $compile_id compile id
+ * @param integer $exp_time expiration time (number of seconds, not timestamp)
+ * @return integer number of cache files deleted
+ */
+ public abstract function clear(Smarty $smarty, $resource_name, $cache_id, $compile_id, $exp_time);
+
+
+ public function locked(Smarty $smarty, Smarty_Template_Cached $cached)
+ {
+ // theoretically locking_timeout should be checked against time_limit (max_execution_time)
+ $start = microtime(true);
+ $hadLock = null;
+ while ($this->hasLock($smarty, $cached)) {
+ $hadLock = true;
+ if (microtime(true) - $start > $smarty->locking_timeout) {
+ // abort waiting for lock release
+ return false;
+ }
+ sleep(1);
+ }
+ return $hadLock;
+ }
+
+ public function hasLock(Smarty $smarty, Smarty_Template_Cached $cached)
+ {
+ // check if lock exists
+ return false;
+ }
+
+ public function acquireLock(Smarty $smarty, Smarty_Template_Cached $cached)
+ {
+ // create lock
+ return true;
+ }
+
+ public function releaseLock(Smarty $smarty, Smarty_Template_Cached $cached)
+ {
+ // release lock
+ return true;
+ }
+
+
+ /**
+ * Load Cache Resource Handler
+ *
+ * @param Smarty $smarty Smarty object
+ * @param string $type name of the cache resource
+ * @return Smarty_CacheResource Cache Resource Handler
+ */
+ public static function load(Smarty $smarty, $type = null)
+ {
+ if (!isset($type)) {
+ $type = $smarty->caching_type;
+ }
+
+ // try smarty's cache
+ if (isset($smarty->_cacheresource_handlers[$type])) {
+ return $smarty->_cacheresource_handlers[$type];
+ }
+
+ // try registered resource
+ if (isset($smarty->registered_cache_resources[$type])) {
+ // do not cache these instances as they may vary from instance to instance
+ return $smarty->_cacheresource_handlers[$type] = $smarty->registered_cache_resources[$type];
+ }
+ // try sysplugins dir
+ if (isset(self::$sysplugins[$type])) {
+ if (!isset(self::$resources[$type])) {
+ $cache_resource_class = 'Smarty_Internal_CacheResource_' . ucfirst($type);
+ self::$resources[$type] = new $cache_resource_class();
+ }
+ return $smarty->_cacheresource_handlers[$type] = self::$resources[$type];
+ }
+ // try plugins dir
+ $cache_resource_class = 'Smarty_CacheResource_' . ucfirst($type);
+ if ($smarty->loadPlugin($cache_resource_class)) {
+ if (!isset(self::$resources[$type])) {
+ self::$resources[$type] = new $cache_resource_class();
+ }
+ return $smarty->_cacheresource_handlers[$type] = self::$resources[$type];
+ }
+ // give up
+ throw new SmartyException("Unable to load cache resource '{$type}'");
+ }
+
+ /**
+ * Invalid Loaded Cache Files
+ *
+ * @param Smarty $smarty Smarty object
+ */
+ public static function invalidLoadedCache(Smarty $smarty)
+ {
+ foreach ($smarty->template_objects as $tpl) {
+ if (isset($tpl->cached)) {
+ $tpl->cached->valid = false;
+ $tpl->cached->processed = false;
+ }
+ }
+ }
+}
+
+/**
+* Smarty Resource Data Object
+*
+* Cache Data Container for Template Files
+*
+* @package Smarty
+* @subpackage TemplateResources
+* @author Rodney Rehm
+*/
+class Smarty_Template_Cached {
+ /**
+ * Source Filepath
+ * @var string
+ */
+ public $filepath = false;
+
+ /**
+ * Source Content
+ * @var string
+ */
+ public $content = null;
+
+ /**
+ * Source Timestamp
+ * @var integer
+ */
+ public $timestamp = false;
+
+ /**
+ * Source Existance
+ * @var boolean
+ */
+ public $exists = false;
+
+ /**
+ * Cache Is Valid
+ * @var boolean
+ */
+ public $valid = false;
+
+ /**
+ * Cache was processed
+ * @var boolean
+ */
+ public $processed = false;
+
+ /**
+ * CacheResource Handler
+ * @var Smarty_CacheResource
+ */
+ public $handler = null;
+
+ /**
+ * Template Compile Id (Smarty_Internal_Template::$compile_id)
+ * @var string
+ */
+ public $compile_id = null;
+
+ /**
+ * Template Cache Id (Smarty_Internal_Template::$cache_id)
+ * @var string
+ */
+ public $cache_id = null;
+
+ /**
+ * Id for cache locking
+ * @var string
+ */
+ public $lock_id = null;
+
+ /**
+ * flag that cache is locked by this instance
+ * @var bool
+ */
+ public $is_locked = false;
+
+ /**
+ * Source Object
+ * @var Smarty_Template_Source
+ */
+ public $source = null;
+
+ /**
+ * create Cached Object container
+ *
+ * @param Smarty_Internal_Template $_template template object
+ */
+ public function __construct(Smarty_Internal_Template $_template)
+ {
+ $this->compile_id = $_template->compile_id;
+ $this->cache_id = $_template->cache_id;
+ $this->source = $_template->source;
+ $_template->cached = $this;
+ $smarty = $_template->smarty;
+
+ //
+ // load resource handler
+ //
+ $this->handler = $handler = Smarty_CacheResource::load($smarty); // Note: prone to circular references
+
+ //
+ // check if cache is valid
+ //
+ if (!($_template->caching == Smarty::CACHING_LIFETIME_CURRENT || $_template->caching == Smarty::CACHING_LIFETIME_SAVED) || $_template->source->recompiled) {
+ $handler->populate($this, $_template);
+ return;
+ }
+ while (true) {
+ while (true) {
+ $handler->populate($this, $_template);
+ if ($this->timestamp === false || $smarty->force_compile || $smarty->force_cache) {
+ $this->valid = false;
+ } else {
+ $this->valid = true;
+ }
+ if ($this->valid && $_template->caching == Smarty::CACHING_LIFETIME_CURRENT && $_template->cache_lifetime >= 0 && time() > ($this->timestamp + $_template->cache_lifetime)) {
+ // lifetime expired
+ $this->valid = false;
+ }
+ if ($this->valid || !$_template->smarty->cache_locking) {
+ break;
+ }
+ if (!$this->handler->locked($_template->smarty, $this)) {
+ $this->handler->acquireLock($_template->smarty, $this);
+ break 2;
+ }
+ }
+ if ($this->valid) {
+ if (!$_template->smarty->cache_locking || $this->handler->locked($_template->smarty, $this) === null) {
+ // load cache file for the following checks
+ if ($smarty->debugging) {
+ Smarty_Internal_Debug::start_cache($_template);
+ }
+ if($handler->process($_template, $this) === false) {
+ $this->valid = false;
+ } else {
+ $this->processed = true;
+ }
+ if ($smarty->debugging) {
+ Smarty_Internal_Debug::end_cache($_template);
+ }
+ } else {
+ continue;
+ }
+ } else {
+ return;
+ }
+ if ($this->valid && $_template->caching === Smarty::CACHING_LIFETIME_SAVED && $_template->properties['cache_lifetime'] >= 0 && (time() > ($_template->cached->timestamp + $_template->properties['cache_lifetime']))) {
+ $this->valid = false;
+ }
+ if (!$this->valid && $_template->smarty->cache_locking) {
+ $this->handler->acquireLock($_template->smarty, $this);
+ return;
+ } else {
+ return;
+ }
+ }
+ }
+
+ /**
+ * Write this cache object to handler
+ *
+ * @param Smarty_Internal_Template $_template template object
+ * @param string $content content to cache
+ * @return boolean success
+ */
+ public function write(Smarty_Internal_Template $_template, $content)
+ {
+ if (!$_template->source->recompiled) {
+ if ($this->handler->writeCachedContent($_template, $content)) {
+ $this->timestamp = time();
+ $this->exists = true;
+ $this->valid = true;
+ if ($_template->smarty->cache_locking) {
+ $this->handler->releaseLock($_template->smarty, $this);
+ }
+ return true;
+ }
+ }
+ return false;
+ }
+
+}
+?>
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