Redis:
- added support for redis server: // Required to actually have this cache driver active: $a->config['system']['cache_driver'] = 'redis'; // ---- OPTIONAL/DEFAULT: ---- $a->config['system']['redis_host'] = '127.0.0.1'; $a->config['system']['redis_port'] = 6379; Signed-off-by: Roland Häder <roland@mxchange.org>
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@ -40,6 +40,12 @@ class Cache extends \Friendica\BaseObject
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self::$driver = new Cache\MemcachedCacheDriver($memcached_hosts);
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break;
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case 'redis':
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$redis_host = Config::get('system', 'redis_host', '127.0.0.1');
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$redis_port = Config::get('system', 'redis_port', 6379);
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self::$driver = new Cache\RedisCacheDriver($redis_host, $redis_port);
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break;
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default:
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self::$driver = new Cache\DatabaseCacheDriver();
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}
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@ -0,0 +1,77 @@
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<?php
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namespace Friendica\Core\Cache;
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use Friendica\BaseObject;
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use Friendica\Core\Cache;
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/**
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* Redis Cache Driver. This driver is based on Memcache driver
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*
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* @author Hypolite Petovan <mrpetovan@gmail.com>
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* @author Roland Haeder <roland@mxchange.org>
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*/
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class RedisCacheDriver extends BaseObject implements ICacheDriver
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{
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/**
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* @var Redis
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*/
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private $redis;
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public function __construct($redis_host, $redis_port)
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{
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if (!class_exists('Redis', false)) {
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throw new \Exception('Redis class isn\'t available');
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}
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$this->redis = new \Redis();
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if (!$this->redis->connect($redis_host, $redis_port)) {
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throw new \Exception('Expected Redis server at ' . $redis_host . ':' . $redis_port . ' isn\'t available');
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}
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}
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public function get($key)
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{
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$return = null;
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// We fetch with the hostname as key to avoid problems with other applications
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$cached = $this->redis->get(self::getApp()->get_hostname() . ':' . $key);
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// @see http://php.net/manual/en/redis.get.php#84275
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if (is_bool($cached) || is_double($cached) || is_long($cached)) {
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return $return;
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}
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$value = @unserialize($cached);
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// Only return a value if the serialized value is valid.
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// We also check if the db entry is a serialized
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// boolean 'false' value (which we want to return).
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if ($cached === serialize(false) || $value !== false) {
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$return = $value;
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}
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return $return;
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}
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public function set($key, $value, $duration = Cache::MONTH)
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{
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// We store with the hostname as key to avoid problems with other applications
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return $this->redis->set(
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self::getApp()->get_hostname() . ":" . $key,
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serialize($value),
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time() + $duration
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);
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}
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public function delete($key)
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{
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return $this->redis->delete($key);
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}
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public function clear()
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{
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return true;
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}
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}
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