/framework/vendor/smarty2/lib/internals/core.write_cache_file.php

 1<?php
 2/**
 3 * Smarty plugin
 4 * @package Smarty
 5 * @subpackage plugins
 6 */
 7
 8/**
 9 * Prepend the cache information to the cache file
10 * and write it
11 *
12 * @param string $tpl_file
13 * @param string $cache_id
14 * @param string $compile_id
15 * @param string $results
16 * @return true|null
17 */
18
19 // $tpl_file, $cache_id, $compile_id, $results
20
21function smarty_core_write_cache_file($params, &$smarty)
22{
23
24    // put timestamp in cache header
25    $smarty->_cache_info['timestamp'] = time();
26    if ($smarty->cache_lifetime > -1){
27        // expiration set
28        $smarty->_cache_info['expires'] = $smarty->_cache_info['timestamp'] + $smarty->cache_lifetime;
29    } else {
30        // cache will never expire
31        $smarty->_cache_info['expires'] = -1;
32    }
33
34    // collapse nocache.../nocache-tags
35    if (preg_match_all('!\{(/?)nocache\:[0-9a-f]{32}#\d+\}!', $params['results'], $match, PREG_PATTERN_ORDER)) {
36        // remove everything between every pair of outermost noache.../nocache-tags
37        // and replace it by a single nocache-tag
38        // this new nocache-tag will be replaced by dynamic contents in
39        // smarty_core_process_compiled_includes() on a cache-read
40        
41        $match_count = count($match[0]);
42        $results = preg_split('!(\{/?nocache\:[0-9a-f]{32}#\d+\})!', $params['results'], -1, PREG_SPLIT_DELIM_CAPTURE);
43        
44        $level = 0;
45        $j = 0;
46        for ($i=0, $results_count = count($results); $i < $results_count && $j < $match_count; $i++) {
47            if ($results[$i] == $match[0][$j]) {
48                // nocache tag
49                if ($match[1][$j]) { // closing tag
50                    $level--;
51                    unset($results[$i]);
52                } else { // opening tag
53                    if ($level++ > 0) unset($results[$i]);
54                }
55                $j++;
56            } elseif ($level > 0) {
57                unset($results[$i]);
58            }
59        }
60        $params['results'] = implode('', $results);
61    }
62    $smarty->_cache_info['cache_serials'] = $smarty->_cache_serials;
63
64    // prepend the cache header info into cache file
65    $_cache_info = serialize($smarty->_cache_info);
66    $params['results'] = strlen($_cache_info) . "\n" . $_cache_info . $params['results'];
67
68    if (!empty($smarty->cache_handler_func)) {
69        // use cache_handler function
70        call_user_func_array($smarty->cache_handler_func,
71                             array('write', &$smarty, &$params['results'], $params['tpl_file'], $params['cache_id'], $params['compile_id'], null));
72    } else {
73        // use local cache file
74
75        if(!@is_writable($smarty->cache_dir)) {
76            // cache_dir not writable, see if it exists
77            if(!@is_dir($smarty->cache_dir)) {
78                $smarty->trigger_error('the $cache_dir \'' . $smarty->cache_dir . '\' does not exist, or is not a directory.', E_USER_ERROR);
79                return false;
80            }
81            $smarty->trigger_error('unable to write to $cache_dir \'' . realpath($smarty->cache_dir) . '\'. Be sure $cache_dir is writable by the web server user.', E_USER_ERROR);
82            return false;
83        }
84
85        $_auto_id = $smarty->_get_auto_id($params['cache_id'], $params['compile_id']);
86        $_cache_file = $smarty->_get_auto_filename($smarty->cache_dir, $params['tpl_file'], $_auto_id);
87        $_params = array('filename' => $_cache_file, 'contents' => $params['results'], 'create_dirs' => true);
88        require_once(SMARTY_CORE_DIR . 'core.write_file.php');
89        smarty_core_write_file($_params, $smarty);
90        return true;
91    }
92}
93
94/* vim: set expandtab: */
95
96?>