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<?php |
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/** |
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* Smarty plugin |
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* @package Smarty |
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* @subpackage plugins |
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*/ |
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|
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/** |
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* read a cache file, determine if it needs to be |
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* regenerated or not |
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* |
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* @param string $tpl_file |
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* @param string $cache_id |
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* @param string $compile_id |
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* @param string $results |
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* @return boolean |
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*/ |
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|
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// $tpl_file, $cache_id, $compile_id, &$results |
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|
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function smarty_core_read_cache_file(&$params, &$smarty) |
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{ |
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static $content_cache = array(); |
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|
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if ($smarty->force_compile) { |
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// force compile enabled, always regenerate |
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return false; |
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} |
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|
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if (isset($content_cache[$params['tpl_file'].','.$params['cache_id'].','.$params['compile_id']])) { |
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list($params['results'], $smarty->_cache_info) = $content_cache[$params['tpl_file'].','.$params['cache_id'].','.$params['compile_id']]; |
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return true; |
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} |
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|
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if (!empty($smarty->cache_handler_func)) { |
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// use cache_handler function |
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call_user_func_array($smarty->cache_handler_func, |
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array('read', &$smarty, &$params['results'], $params['tpl_file'], $params['cache_id'], $params['compile_id'], null)); |
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} else { |
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// use local cache file |
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$_auto_id = $smarty->_get_auto_id($params['cache_id'], $params['compile_id']); |
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$_cache_file = $smarty->_get_auto_filename($smarty->cache_dir, $params['tpl_file'], $_auto_id); |
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$params['results'] = $smarty->_read_file($_cache_file); |
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} |
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|
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if (empty($params['results'])) { |
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// nothing to parse (error?), regenerate cache |
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return false; |
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} |
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|
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$cache_split = explode("\n", $params['results'], 2); |
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$cache_header = $cache_split[0]; |
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|
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$_cache_info = unserialize($cache_header); |
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|
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if ($smarty->caching == 2 && isset ($_cache_info['expires'])){ |
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// caching by expiration time |
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if ($_cache_info['expires'] > -1 && (time() > $_cache_info['expires'])) { |
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// cache expired, regenerate |
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return false; |
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} |
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} else { |
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// caching by lifetime |
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if ($smarty->cache_lifetime > -1 && (time() - $_cache_info['timestamp'] > $smarty->cache_lifetime)) { |
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// cache expired, regenerate |
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return false; |
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} |
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} |
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|
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if ($smarty->compile_check) { |
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$_params = array('get_source' => false, 'quiet'=>true); |
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foreach (array_keys($_cache_info['template']) as $_template_dep) { |
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$_params['resource_name'] = $_template_dep; |
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if (!$smarty->_fetch_resource_info($_params) || $_cache_info['timestamp'] < $_params['resource_timestamp']) { |
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// template file has changed, regenerate cache |
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return false; |
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} |
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} |
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|
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if (isset($_cache_info['config'])) { |
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$_params = array('resource_base_path' => $smarty->config_dir, 'get_source' => false, 'quiet'=>true); |
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foreach (array_keys($_cache_info['config']) as $_config_dep) { |
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$_params['resource_name'] = $_config_dep; |
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if (!$smarty->_fetch_resource_info($_params) || $_cache_info['timestamp'] < $_params['resource_timestamp']) { |
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// config file has changed, regenerate cache |
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return false; |
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} |
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} |
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} |
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} |
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|
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foreach ($_cache_info['cache_serials'] as $_include_file_path=>$_cache_serial) { |
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if (empty($smarty->_cache_serials[$_include_file_path])) { |
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$smarty->_include($_include_file_path, true); |
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} |
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|
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if ($smarty->_cache_serials[$_include_file_path] != $_cache_serial) { |
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/* regenerate */ |
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return false; |
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} |
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} |
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$params['results'] = $cache_split[1]; |
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$content_cache[$params['tpl_file'].','.$params['cache_id'].','.$params['compile_id']] = array($params['results'], $_cache_info); |
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|
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$smarty->_cache_info = $_cache_info; |
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return true; |
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} |
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|
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/* vim: set expandtab: */ |
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|
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?> |