leftypol_vichan/inc/cache.php
discomrade 8512321669 Fix redis 'delete' deprecation error
Redis deprecated the 'delete' alias for 'del'. Posting while using redis cache would return an error, the post would still be posted.
2022-01-16 23:50:25 -05:00

178 lines
3.9 KiB
PHP

<?php
/*
* Copyright (c) 2010-2013 Tinyboard Development Group
*/
defined('TINYBOARD') or exit;
class Cache {
private static $cache;
public static function init() {
global $config;
switch ($config['cache']['enabled']) {
case 'memcached':
self::$cache = new Memcached();
self::$cache->addServers($config['cache']['memcached']);
break;
case 'redis':
self::$cache = new Redis();
self::$cache->connect($config['cache']['redis'][0], $config['cache']['redis'][1]);
if ($config['cache']['redis'][2]) {
self::$cache->auth($config['cache']['redis'][2]);
}
self::$cache->select($config['cache']['redis'][3]) or die('cache select failure');
break;
case 'php':
self::$cache = array();
break;
}
}
public static function get($key) {
global $config, $debug;
$key = $config['cache']['prefix'] . $key;
$data = false;
switch ($config['cache']['enabled']) {
case 'memcached':
if (!self::$cache)
self::init();
$data = self::$cache->get($key);
break;
case 'apc':
$data = apc_fetch($key);
break;
case 'xcache':
$data = xcache_get($key);
break;
case 'php':
$data = isset(self::$cache[$key]) ? self::$cache[$key] : false;
break;
case 'fs':
$key = str_replace('/', '::', $key);
$key = str_replace("\0", '', $key);
if (!file_exists('tmp/cache/'.$key)) {
$data = false;
}
else {
$data = file_get_contents('tmp/cache/'.$key);
$data = json_decode($data, true);
}
break;
case 'redis':
if (!self::$cache)
self::init();
$data = json_decode(self::$cache->get($key), true);
break;
}
if ($config['debug'])
$debug['cached'][] = $key . ($data === false ? ' (miss)' : ' (hit)');
return $data;
}
public static function set($key, $value, $expires = false) {
global $config, $debug;
$key = $config['cache']['prefix'] . $key;
if (!$expires)
$expires = $config['cache']['timeout'];
switch ($config['cache']['enabled']) {
case 'memcached':
if (!self::$cache)
self::init();
self::$cache->set($key, $value, $expires);
break;
case 'redis':
if (!self::$cache)
self::init();
self::$cache->setex($key, $expires, json_encode($value));
break;
case 'apc':
apc_store($key, $value, $expires);
break;
case 'xcache':
xcache_set($key, $value, $expires);
break;
case 'fs':
$key = str_replace('/', '::', $key);
$key = str_replace("\0", '', $key);
file_put_contents('tmp/cache/'.$key, json_encode($value));
break;
case 'php':
self::$cache[$key] = $value;
break;
}
if ($config['debug'])
$debug['cached'][] = $key . ' (set)';
}
public static function delete($key) {
global $config, $debug;
$key = $config['cache']['prefix'] . $key;
switch ($config['cache']['enabled']) {
case 'memcached':
if (!self::$cache)
self::init();
self::$cache->delete($key);
break;
case 'redis':
if (!self::$cache)
self::init();
self::$cache->del($key);
break;
case 'apc':
apc_delete($key);
break;
case 'xcache':
xcache_unset($key);
break;
case 'fs':
$key = str_replace('/', '::', $key);
$key = str_replace("\0", '', $key);
@unlink('tmp/cache/'.$key);
break;
case 'php':
unset(self::$cache[$key]);
break;
}
if ($config['debug'])
$debug['cached'][] = $key . ' (deleted)';
}
public static function flush() {
global $config;
switch ($config['cache']['enabled']) {
case 'memcached':
if (!self::$cache)
self::init();
return self::$cache->flush();
case 'apc':
return apc_clear_cache('user');
case 'php':
self::$cache = array();
break;
case 'fs':
$files = glob('tmp/cache/*');
foreach ($files as $file) {
unlink($file);
}
break;
case 'redis':
if (!self::$cache)
self::init();
return self::$cache->flushDB();
}
return false;
}
}