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235 lines
7.9 KiB
235 lines
7.9 KiB
<?php |
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/** |
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* Smarty Internal Plugin CacheResource File |
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* |
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* @package Smarty |
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* @subpackage Cacher |
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* @author Uwe Tews |
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* @author Rodney Rehm |
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*/ |
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/** |
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* This class does contain all necessary methods for the HTML cache on file system |
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* Implements the file system as resource for the HTML cache Version ussing nocache inserts. |
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* |
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* @package Smarty |
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* @subpackage Cacher |
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*/ |
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class Smarty_Internal_CacheResource_File extends Smarty_CacheResource |
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{ |
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/** |
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* populate Cached Object with meta data from Resource |
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* |
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* @param Smarty_Template_Cached $cached cached object |
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* @param Smarty_Internal_Template $_template template object |
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* |
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* @return void |
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*/ |
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public function populate(Smarty_Template_Cached $cached, Smarty_Internal_Template $_template) |
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{ |
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$source = &$_template->source; |
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$smarty = &$_template->smarty; |
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$_compile_dir_sep = $smarty->use_sub_dirs ? DIRECTORY_SEPARATOR : '^'; |
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$_filepath = sha1($source->uid . $smarty->_joined_template_dir); |
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$cached->filepath = $smarty->getCacheDir(); |
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if (isset($_template->cache_id)) { |
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$cached->filepath .= preg_replace( |
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array( |
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'![^\w|]+!', |
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'![|]+!' |
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), |
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array( |
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'_', |
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$_compile_dir_sep |
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), |
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$_template->cache_id |
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) . $_compile_dir_sep; |
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} |
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if (isset($_template->compile_id)) { |
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$cached->filepath .= preg_replace('![^\w]+!', '_', $_template->compile_id) . $_compile_dir_sep; |
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} |
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// if use_sub_dirs, break file into directories |
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if ($smarty->use_sub_dirs) { |
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$cached->filepath .= $_filepath[ 0 ] . $_filepath[ 1 ] . DIRECTORY_SEPARATOR . $_filepath[ 2 ] . |
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$_filepath[ 3 ] . |
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DIRECTORY_SEPARATOR . |
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$_filepath[ 4 ] . $_filepath[ 5 ] . DIRECTORY_SEPARATOR; |
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} |
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$cached->filepath .= $_filepath; |
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$basename = $source->handler->getBasename($source); |
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if (!empty($basename)) { |
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$cached->filepath .= '.' . $basename; |
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} |
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if ($smarty->cache_locking) { |
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$cached->lock_id = $cached->filepath . '.lock'; |
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} |
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$cached->filepath .= '.php'; |
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$cached->timestamp = $cached->exists = is_file($cached->filepath); |
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if ($cached->exists) { |
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$cached->timestamp = filemtime($cached->filepath); |
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} |
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} |
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/** |
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* populate Cached Object with timestamp and exists from Resource |
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* |
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* @param Smarty_Template_Cached $cached cached object |
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* |
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* @return void |
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*/ |
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public function populateTimestamp(Smarty_Template_Cached $cached) |
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{ |
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$cached->timestamp = $cached->exists = is_file($cached->filepath); |
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if ($cached->exists) { |
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$cached->timestamp = filemtime($cached->filepath); |
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} |
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} |
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/** |
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* Read the cached template and process its header |
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* |
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* @param \Smarty_Internal_Template $_smarty_tpl do not change variable name, is used by compiled template |
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* @param Smarty_Template_Cached $cached cached object |
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* @param bool $update flag if called because cache update |
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* |
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* @return boolean true or false if the cached content does not exist |
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*/ |
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public function process( |
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Smarty_Internal_Template $_smarty_tpl, |
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Smarty_Template_Cached $cached = null, |
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$update = false |
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) { |
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$_smarty_tpl->cached->valid = false; |
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if ($update && defined('HHVM_VERSION')) { |
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eval('?>' . file_get_contents($_smarty_tpl->cached->filepath)); |
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return true; |
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} else { |
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return @include $_smarty_tpl->cached->filepath; |
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} |
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} |
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/** |
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* Write the rendered template output to cache |
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* |
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* @param Smarty_Internal_Template $_template template object |
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* @param string $content content to cache |
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* |
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* @return bool success |
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* @throws \SmartyException |
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*/ |
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public function writeCachedContent(Smarty_Internal_Template $_template, $content) |
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{ |
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if ($_template->smarty->ext->_writeFile->writeFile( |
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$_template->cached->filepath, |
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$content, |
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$_template->smarty |
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) === true |
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) { |
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if (function_exists('opcache_invalidate') |
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&& (!function_exists('ini_get') || strlen(ini_get('opcache.restrict_api'))) < 1 |
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) { |
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opcache_invalidate($_template->cached->filepath, true); |
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} elseif (function_exists('apc_compile_file')) { |
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apc_compile_file($_template->cached->filepath); |
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} |
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$cached = $_template->cached; |
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$cached->timestamp = $cached->exists = is_file($cached->filepath); |
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if ($cached->exists) { |
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$cached->timestamp = filemtime($cached->filepath); |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Read cached template from cache |
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* |
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* @param Smarty_Internal_Template $_template template object |
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* |
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* @return string content |
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*/ |
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public function readCachedContent(Smarty_Internal_Template $_template) |
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{ |
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if (is_file($_template->cached->filepath)) { |
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return file_get_contents($_template->cached->filepath); |
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} |
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return false; |
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} |
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/** |
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* Empty cache |
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* |
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* @param Smarty $smarty |
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* @param integer $exp_time expiration time (number of seconds, not timestamp) |
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* |
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* @return integer number of cache files deleted |
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*/ |
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public function clearAll(Smarty $smarty, $exp_time = null) |
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{ |
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return $smarty->ext->_cacheResourceFile->clear($smarty, null, null, null, $exp_time); |
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} |
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/** |
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* Empty cache for a specific template |
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* |
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* @param Smarty $smarty |
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* @param string $resource_name template name |
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* @param string $cache_id cache id |
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* @param string $compile_id compile id |
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* @param integer $exp_time expiration time (number of seconds, not timestamp) |
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* |
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* @return integer number of cache files deleted |
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*/ |
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public function clear(Smarty $smarty, $resource_name, $cache_id, $compile_id, $exp_time) |
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{ |
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return $smarty->ext->_cacheResourceFile->clear($smarty, $resource_name, $cache_id, $compile_id, $exp_time); |
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} |
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/** |
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* Check is cache is locked for this template |
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* |
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* @param Smarty $smarty Smarty object |
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* @param Smarty_Template_Cached $cached cached object |
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* |
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* @return boolean true or false if cache is locked |
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*/ |
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public function hasLock(Smarty $smarty, Smarty_Template_Cached $cached) |
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{ |
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clearstatcache(true, $cached->lock_id ?? ''); |
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if (null !== $cached->lock_id && is_file($cached->lock_id)) { |
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$t = filemtime($cached->lock_id); |
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return $t && (time() - $t < $smarty->locking_timeout); |
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} else { |
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return false; |
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} |
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} |
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/** |
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* Lock cache for this template |
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* |
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* @param Smarty $smarty Smarty object |
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* @param Smarty_Template_Cached $cached cached object |
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* |
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* @return bool|void |
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*/ |
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public function acquireLock(Smarty $smarty, Smarty_Template_Cached $cached) |
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{ |
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$cached->is_locked = true; |
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touch($cached->lock_id); |
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} |
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/** |
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* Unlock cache for this template |
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* |
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* @param Smarty $smarty Smarty object |
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* @param Smarty_Template_Cached $cached cached object |
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* |
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* @return bool|void |
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*/ |
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public function releaseLock(Smarty $smarty, Smarty_Template_Cached $cached) |
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{ |
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$cached->is_locked = false; |
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@unlink($cached->lock_id); |
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} |
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}
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