XOOPS 2.5.6  Final
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core.read_cache_file.php
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1 <?php
19 // $tpl_file, $cache_id, $compile_id, &$results
20 
21 function smarty_core_read_cache_file(&$params, &$smarty)
22 {
23  static $content_cache = array();
24 
25  if ($smarty->force_compile) {
26  // force compile enabled, always regenerate
27  return false;
28  }
29 
30  if (isset($content_cache[$params['tpl_file'].','.$params['cache_id'].','.$params['compile_id']])) {
31  list($params['results'], $smarty->_cache_info) = $content_cache[$params['tpl_file'].','.$params['cache_id'].','.$params['compile_id']];
32  return true;
33  }
34 
35  if (!empty($smarty->cache_handler_func)) {
36  // use cache_handler function
37  call_user_func_array($smarty->cache_handler_func,
38  array('read', &$smarty, &$params['results'], $params['tpl_file'], $params['cache_id'], $params['compile_id'], null));
39  } else {
40  // use local cache file
41  $_auto_id = $smarty->_get_auto_id($params['cache_id'], $params['compile_id']);
42  $_cache_file = $smarty->_get_auto_filename($smarty->cache_dir, $params['tpl_file'], $_auto_id);
43  $params['results'] = $smarty->_read_file($_cache_file);
44  }
45 
46  if (empty($params['results'])) {
47  // nothing to parse (error?), regenerate cache
48  return false;
49  }
50 
51  $_contents = $params['results'];
52  $_info_start = strpos($_contents, "\n") + 1;
53  $_info_len = (int)substr($_contents, 0, $_info_start - 1);
54  $_cache_info = unserialize(substr($_contents, $_info_start, $_info_len));
55  $params['results'] = substr($_contents, $_info_start + $_info_len);
56 
57  if ($smarty->caching == 2 && isset ($_cache_info['expires'])){
58  // caching by expiration time
59  if ($_cache_info['expires'] > -1 && (time() > $_cache_info['expires'])) {
60  // cache expired, regenerate
61  return false;
62  }
63  } else {
64  // caching by lifetime
65  if ($smarty->cache_lifetime > -1 && (time() - $_cache_info['timestamp'] > $smarty->cache_lifetime)) {
66  // cache expired, regenerate
67  return false;
68  }
69  }
70 
71  if ($smarty->compile_check) {
72  $_params = array('get_source' => false, 'quiet'=>true);
73  foreach (array_keys($_cache_info['template']) as $_template_dep) {
74  $_params['resource_name'] = $_template_dep;
75  if (!$smarty->_fetch_resource_info($_params) || $_cache_info['timestamp'] < $_params['resource_timestamp']) {
76  // template file has changed, regenerate cache
77  return false;
78  }
79  }
80 
81  if (isset($_cache_info['config'])) {
82  $_params = array('resource_base_path' => $smarty->config_dir, 'get_source' => false, 'quiet'=>true);
83  foreach (array_keys($_cache_info['config']) as $_config_dep) {
84  $_params['resource_name'] = $_config_dep;
85  if (!$smarty->_fetch_resource_info($_params) || $_cache_info['timestamp'] < $_params['resource_timestamp']) {
86  // config file has changed, regenerate cache
87  return false;
88  }
89  }
90  }
91  }
92 
93  $content_cache[$params['tpl_file'].','.$params['cache_id'].','.$params['compile_id']] = array($params['results'], $_cache_info);
94 
95  $smarty->_cache_info = $_cache_info;
96  return true;
97 }
98 
99 /* vim: set expandtab: */
100 
101 ?>