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102 lines
3.5 KiB
102 lines
3.5 KiB
8 years ago
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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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* 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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// $tpl_file, $cache_id, $compile_id, &$results
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function smarty_core_read_cache_file(&$params, &$smarty)
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{
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static $content_cache = array();
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if ($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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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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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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if (empty($params['results'])) {
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// nothing to parse (error?), regenerate cache
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return false;
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}
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$_contents = $params['results'];
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$_info_start = strpos($_contents, "\n") + 1;
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$_info_len = (int)substr($_contents, 0, $_info_start - 1);
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$_cache_info = unserialize(substr($_contents, $_info_start, $_info_len));
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$params['results'] = substr($_contents, $_info_start + $_info_len);
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if ($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'] > $smarty->cache_lifetime)) {
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// cache expired, regenerate
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return false;
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}
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}
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if ($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'] < $_params['resource_timestamp']) {
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// template file has changed, regenerate cache
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return false;
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}
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}
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if (isset($_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'] < $_params['resource_timestamp']) {
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// config file has changed, regenerate cache
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return false;
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}
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}
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}
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}
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$content_cache[$params['tpl_file'].','.$params['cache_id'].','.$params['compile_id']] = array($params['results'], $_cache_info);
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$smarty->_cache_info = $_cache_info;
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return true;
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}
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/* vim: set expandtab: */
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?>
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