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New cache system with subdirectories

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This commit is contained in:
Michael Vogel 2012-11-17 00:50:39 +01:00
parent e67062d9cf
commit f17377e6de
7 changed files with 83 additions and 86 deletions
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51
boot.php
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@ -1847,3 +1847,54 @@ function random_digits($digits) {
}
return $rn;
}
function get_cachefile($file, $writemode = true) {
$cache = get_config("system","itemcache");
if ($cache == "")
return("");
if (!is_dir($cache))
return("");
$subfolder = $cache."/".substr($file, 0, 2);
$cachepath = $subfolder."/".$file;
if ($writemode) {
if (!is_dir($subfolder)) {
mkdir($subfolder);
chmod($subfolder, 0777);
}
}
return($cachepath);
}
function clear_cache($basepath = "", $path = "") {
if ($path == "") {
$basepath = get_config('system','itemcache');
$path = $basepath;
}
if (($path == "") OR (!is_dir($path)))
return;
if (substr(realpath($path), 0, strlen($basepath)) != $basepath)
return;
$cachetime = (int)get_config('system','itemcache_duration');
if ($cachetime == 0)
$cachetime = 86400;
if ($dh = opendir($path)) {
while (($file = readdir($dh)) !== false) {
$fullpath = $path."/".$file;
if ((filetype($fullpath) == "dir") and ($file != ".") and ($file != ".."))
clear_cache($basepath, $fullpath);
if ((filetype($fullpath) == "file") and filectime($fullpath) < (time() - $cachetime))
unlink($fullpath);
}
closedir($dh);
}
}