forked from GNUsocial/gnu-social
148 lines
4.2 KiB
PHP
148 lines
4.2 KiB
PHP
<?php
|
|
|
|
/**
|
|
* GNU social - a federating social network
|
|
*
|
|
* Plguin inplementing Redis based caching
|
|
*
|
|
* LICENCE: This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* @category Files
|
|
* @package GNUsocial
|
|
* @author Stéphane Bérubé <chimo@chromic.org>
|
|
* @author Miguel Dantas <biodantas@gmail.com>
|
|
* @copyright 2018, 2019 Free Software Foundation http://fsf.org
|
|
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
|
|
* @link https://www.gnu.org/software/social/
|
|
*/
|
|
|
|
defined('GNUSOCIAL') || die();
|
|
|
|
use Predis\Client;
|
|
use Predis\PredisException;
|
|
|
|
class RedisCachePlugin extends Plugin
|
|
{
|
|
const PLUGIN_VERSION = '0.1.0';
|
|
|
|
// settings which can be set in config.php with addPlugin('Embed', ['param'=>'value', ...]);
|
|
public $server = null;
|
|
public $defaultExpiry = 86400; // 24h
|
|
|
|
|
|
protected $client = null;
|
|
|
|
function onInitializePlugin()
|
|
{
|
|
$this->_ensureConn();
|
|
|
|
return true;
|
|
}
|
|
|
|
private function _ensureConn()
|
|
{
|
|
if ($this->client === null) {
|
|
$this->client = new Client($this->server);
|
|
}
|
|
}
|
|
|
|
function onStartCacheGet(&$key, &$value)
|
|
{
|
|
try {
|
|
$this->_ensureConn();
|
|
$ret = $this->client->get($key);
|
|
} catch(PredisException $e) {
|
|
common_log(LOG_ERR, 'RedisCache encountered exception ' . get_class($e) . ': ' . $e->getMessage());
|
|
return true;
|
|
}
|
|
|
|
// Hit, overwrite "value" and return false
|
|
// to indicate we took care of this
|
|
if ($ret !== null) {
|
|
$value = unserialize($ret);
|
|
return false;
|
|
}
|
|
|
|
// Miss, let GS do its thing
|
|
return true;
|
|
}
|
|
|
|
function onStartCacheSet(&$key, &$value, &$flag, &$expiry, &$success)
|
|
{
|
|
if ($expiry === null) {
|
|
$expiry = $this->defaultExpiry;
|
|
}
|
|
|
|
try {
|
|
$this->_ensureConn();
|
|
|
|
$ret = $this->client->setex($key, $expiry, serialize($value));
|
|
} catch(PredisException $e) {
|
|
common_log(LOG_ERR, 'RedisCache encountered exception ' . get_class($e) . ': ' . $e->getMessage());
|
|
return true;
|
|
}
|
|
|
|
if (is_int($ret) || (!is_null($ret) && $ret->getPayload() === "OK")) {
|
|
$success = true;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
function onStartCacheDelete($key)
|
|
{
|
|
if ($key === null) {
|
|
return true;
|
|
}
|
|
|
|
try {
|
|
$this->_ensureConn();
|
|
$ret = $this->client->del($key);
|
|
} catch(PredisException $e) {
|
|
common_log(LOG_ERR, 'RedisCache encountered exception ' . get_class($e) . ': ' . $e->getMessage());
|
|
}
|
|
|
|
// Let other caches delete stuff if we didn't succeed
|
|
return isset($ret) && $ret === 1;
|
|
}
|
|
|
|
function onStartCacheIncrement(&$key, &$step, &$value)
|
|
{
|
|
try {
|
|
$this->_ensureConn();
|
|
$this->client->incrby($key, $step);
|
|
} catch(PredisException $e) {
|
|
common_log(LOG_ERR, 'RedisCache encountered exception ' . get_class($e) . ': ' . $e->getMessage());
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public function onPluginVersion(array &$versions): bool
|
|
{
|
|
$versions[] = [
|
|
'name' => 'RedisCache',
|
|
'version' => self::VERSION,
|
|
'author' => 'Stéphane Bérubé (chimo)',
|
|
'homepage' => 'https://github.com/chimo/gs-rediscache',
|
|
'description' =>
|
|
// TRANS: Plugin description.
|
|
_m('Plugin implementing Redis as a backend for GNU social caching')
|
|
];
|
|
return true;
|
|
}
|
|
}
|