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MDL-15349, cache enabled lib.php.

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dongsheng
2008-07-08 05:02:41 +00:00
parent 9d8047cb77
commit 52ffbaae61
1 changed files with 54 additions and 2 deletions
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repository/lib.php
+54 -2
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@@ -225,6 +225,60 @@ abstract class repository {
abstract class repository_listing {
}
/**
* This class is used by cURL class, use case:
*
* $CFG->repository_cache_expire = 120;
* $c = new curl(array('cache'=>true));
* $ret = $c->get('http://www.google.com');
*
*/
class repository_cache {
public $dir = '';
function __construct(){
global $CFG;
if (!file_exists($CFG->dataroot.'/repository/cache')) {
mkdir($CFG->dataroot.'/repository/cache/', 0777, true);
}
if(is_dir($CFG->dataroot.'/repository/cache')) {
$this->dir = $CFG->dataroot.'/repository/cache/';
}
}
public function get($param){
global $CFG;
$filename = md5(serialize($param));
if(file_exists($this->dir.$filename)) {
$lasttime = filemtime($this->dir.$filename);
if(time()-$lasttime > $CFG->repository_cache_expire) {
return false;
} else {
$fp = fopen($this->dir.$filename, 'r');
$size = filesize($this->dir.$filename);
$content = fread($fp, $size);
return unserialize($content);
}
}
return false;
}
public function set($param, $val){
$filename = md5(serialize($param));
$fp = fopen($this->dir.$filename, 'w');
fwrite($fp, serialize($val));
fclose($fp);
}
public function cleanup($expire){
if($dir = opendir($this->dir)){
while (false !== ($file = readdir($dir))) {
if(!is_dir($file) && $file != '.' && $file != '..') {
$lasttime = @filemtime($this->dir.$file);
if(time() - $lasttime > $expire){
@unlink($this->dir.$file);
}
}
}
}
}
}
function repository_set_option($id, $position, $config = array()){
global $DB;
@@ -267,5 +321,3 @@ function repository_get_plugins(){
}
return $ret;
}
?>