0,0 → 1,257 |
<?php |
/** |
* Created by PhpStorm. |
* User: Uwe Tews |
* Date: 04.12.2014 |
* Time: 06:08 |
*/ |
|
/** |
* Smarty Resource Data Object |
* Cache Data Container for Template Files |
* |
* @package Smarty |
* @subpackage TemplateResources |
* @author Rodney Rehm |
*/ |
class Smarty_Template_Cached extends Smarty_Template_Resource_Base |
{ |
/** |
* Cache Is Valid |
* |
* @var boolean |
*/ |
public $valid = null; |
|
/** |
* CacheResource Handler |
* |
* @var Smarty_CacheResource |
*/ |
public $handler = null; |
|
/** |
* Template Cache Id (Smarty_Internal_Template::$cache_id) |
* |
* @var string |
*/ |
public $cache_id = null; |
|
/** |
* saved cache lifetime in seconds |
* |
* @var integer |
*/ |
public $cache_lifetime = 0; |
|
/** |
* 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; |
|
/** |
* Nocache hash codes of processed compiled templates |
* |
* @var array |
*/ |
public $hashes = array(); |
|
/** |
* Flag if this is a cache resource |
* |
* @var bool |
*/ |
public $isCache = true; |
|
/** |
* create Cached Object container |
* |
* @param Smarty_Internal_Template $_template template object |
* |
* @throws \SmartyException |
*/ |
public function __construct(Smarty_Internal_Template $_template) |
{ |
$this->compile_id = $_template->compile_id; |
$this->cache_id = $_template->cache_id; |
$this->source = $_template->source; |
if (!class_exists('Smarty_CacheResource', false)) { |
include SMARTY_SYSPLUGINS_DIR . 'smarty_cacheresource.php'; |
} |
$this->handler = Smarty_CacheResource::load($_template->smarty); |
} |
|
/** |
* @param Smarty_Internal_Template $_template |
* |
* @return Smarty_Template_Cached |
*/ |
public static function load(Smarty_Internal_Template $_template) |
{ |
$_template->cached = new Smarty_Template_Cached($_template); |
$_template->cached->handler->populate($_template->cached, $_template); |
// caching enabled ? |
if (!$_template->caching || $_template->source->handler->recompiled |
) { |
$_template->cached->valid = false; |
} |
return $_template->cached; |
} |
|
/** |
* Render cache template |
* |
* @param \Smarty_Internal_Template $_template |
* @param bool $no_output_filter |
* |
* @throws \Exception |
*/ |
public function render(Smarty_Internal_Template $_template, $no_output_filter = true) |
{ |
if ($this->isCached($_template)) { |
if ($_template->smarty->debugging) { |
if (!isset($_template->smarty->_debug)) { |
$_template->smarty->_debug = new Smarty_Internal_Debug(); |
} |
$_template->smarty->_debug->start_cache($_template); |
} |
if (!$this->processed) { |
$this->process($_template); |
} |
$this->getRenderedTemplateCode($_template); |
if ($_template->smarty->debugging) { |
$_template->smarty->_debug->end_cache($_template); |
} |
return; |
} else { |
$_template->smarty->ext->_updateCache->updateCache($this, $_template, $no_output_filter); |
} |
} |
|
/** |
* Check if cache is valid, lock cache if required |
* |
* @param \Smarty_Internal_Template $_template |
* |
* @return bool flag true if cache is valid |
*/ |
public function isCached(Smarty_Internal_Template $_template) |
{ |
if ($this->valid !== null) { |
return $this->valid; |
} |
while (true) { |
while (true) { |
if ($this->exists === false || $_template->smarty->force_compile || $_template->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->compile_check === Smarty::COMPILECHECK_ON |
&& $_template->source->getTimeStamp() > $this->timestamp |
) { |
$this->valid = false; |
} |
if ($this->valid || !$_template->smarty->cache_locking) { |
break; |
} |
if (!$this->handler->locked($_template->smarty, $this)) { |
$this->handler->acquireLock($_template->smarty, $this); |
break 2; |
} |
$this->handler->populate($this, $_template); |
} |
if ($this->valid) { |
if (!$_template->smarty->cache_locking || $this->handler->locked($_template->smarty, $this) === null) { |
// load cache file for the following checks |
if ($_template->smarty->debugging) { |
$_template->smarty->_debug->start_cache($_template); |
} |
if ($this->handler->process($_template, $this) === false) { |
$this->valid = false; |
} else { |
$this->processed = true; |
} |
if ($_template->smarty->debugging) { |
$_template->smarty->_debug->end_cache($_template); |
} |
} else { |
$this->is_locked = true; |
continue; |
} |
} else { |
return $this->valid; |
} |
if ($this->valid && $_template->caching === Smarty::CACHING_LIFETIME_SAVED |
&& $_template->cached->cache_lifetime >= 0 |
&& (time() > ($_template->cached->timestamp + $_template->cached->cache_lifetime)) |
) { |
$this->valid = false; |
} |
if ($_template->smarty->cache_locking) { |
if (!$this->valid) { |
$this->handler->acquireLock($_template->smarty, $this); |
} elseif ($this->is_locked) { |
$this->handler->releaseLock($_template->smarty, $this); |
} |
} |
return $this->valid; |
} |
return $this->valid; |
} |
|
/** |
* Process cached template |
* |
* @param Smarty_Internal_Template $_template template object |
* @param bool $update flag if called because cache update |
*/ |
public function process(Smarty_Internal_Template $_template, $update = false) |
{ |
if ($this->handler->process($_template, $this, $update) === false) { |
$this->valid = false; |
} |
if ($this->valid) { |
$this->processed = true; |
} else { |
$this->processed = false; |
} |
} |
|
/** |
* Read cache content from handler |
* |
* @param Smarty_Internal_Template $_template template object |
* |
* @return string|false content |
*/ |
public function read(Smarty_Internal_Template $_template) |
{ |
if (!$_template->source->handler->recompiled) { |
return $this->handler->readCachedContent($_template); |
} |
return false; |
} |
} |