354 lines
14 KiB
PHP
354 lines
14 KiB
PHP
|
<?php
|
|||
|
|
|||
|
/*
|
|||
|
* This file is part of the Symfony package.
|
|||
|
*
|
|||
|
* (c) Fabien Potencier <fabien@symfony.com>
|
|||
|
*
|
|||
|
* For the full copyright and license information, please view the LICENSE
|
|||
|
* file that was distributed with this source code.
|
|||
|
*/
|
|||
|
|
|||
|
namespace Symfony\Component\Cache\Adapter;
|
|||
|
|
|||
|
use Symfony\Component\Cache\Exception\CacheException;
|
|||
|
use Symfony\Component\Cache\Exception\InvalidArgumentException;
|
|||
|
use Symfony\Component\Cache\Marshaller\DefaultMarshaller;
|
|||
|
use Symfony\Component\Cache\Marshaller\MarshallerInterface;
|
|||
|
|
|||
|
/**
|
|||
|
* @author Rob Frawley 2nd <rmf@src.run>
|
|||
|
* @author Nicolas Grekas <p@tchwork.com>
|
|||
|
*/
|
|||
|
class MemcachedAdapter extends AbstractAdapter
|
|||
|
{
|
|||
|
/**
|
|||
|
* We are replacing characters that are illegal in Memcached keys with reserved characters from
|
|||
|
* {@see \Symfony\Contracts\Cache\ItemInterface::RESERVED_CHARACTERS} that are legal in Memcached.
|
|||
|
* Note: don’t use {@see \Symfony\Component\Cache\Adapter\AbstractAdapter::NS_SEPARATOR}.
|
|||
|
*/
|
|||
|
private const RESERVED_MEMCACHED = " \n\r\t\v\f\0";
|
|||
|
private const RESERVED_PSR6 = '@()\{}/';
|
|||
|
|
|||
|
protected $maxIdLength = 250;
|
|||
|
|
|||
|
private const DEFAULT_CLIENT_OPTIONS = [
|
|||
|
'persistent_id' => null,
|
|||
|
'username' => null,
|
|||
|
'password' => null,
|
|||
|
\Memcached::OPT_SERIALIZER => \Memcached::SERIALIZER_PHP,
|
|||
|
];
|
|||
|
|
|||
|
private $marshaller;
|
|||
|
private $client;
|
|||
|
private $lazyClient;
|
|||
|
|
|||
|
/**
|
|||
|
* Using a MemcachedAdapter with a TagAwareAdapter for storing tags is discouraged.
|
|||
|
* Using a RedisAdapter is recommended instead. If you cannot do otherwise, be aware that:
|
|||
|
* - the Memcached::OPT_BINARY_PROTOCOL must be enabled
|
|||
|
* (that's the default when using MemcachedAdapter::createConnection());
|
|||
|
* - tags eviction by Memcached's LRU algorithm will break by-tags invalidation;
|
|||
|
* your Memcached memory should be large enough to never trigger LRU.
|
|||
|
*
|
|||
|
* Using a MemcachedAdapter as a pure items store is fine.
|
|||
|
*/
|
|||
|
public function __construct(\Memcached $client, string $namespace = '', int $defaultLifetime = 0, MarshallerInterface $marshaller = null)
|
|||
|
{
|
|||
|
if (!static::isSupported()) {
|
|||
|
throw new CacheException('Memcached '.(\PHP_VERSION_ID >= 80100 ? '> 3.1.5' : '>= 2.2.0').' is required.');
|
|||
|
}
|
|||
|
if ('Memcached' === \get_class($client)) {
|
|||
|
$opt = $client->getOption(\Memcached::OPT_SERIALIZER);
|
|||
|
if (\Memcached::SERIALIZER_PHP !== $opt && \Memcached::SERIALIZER_IGBINARY !== $opt) {
|
|||
|
throw new CacheException('MemcachedAdapter: "serializer" option must be "php" or "igbinary".');
|
|||
|
}
|
|||
|
$this->maxIdLength -= \strlen($client->getOption(\Memcached::OPT_PREFIX_KEY));
|
|||
|
$this->client = $client;
|
|||
|
} else {
|
|||
|
$this->lazyClient = $client;
|
|||
|
}
|
|||
|
|
|||
|
parent::__construct($namespace, $defaultLifetime);
|
|||
|
$this->enableVersioning();
|
|||
|
$this->marshaller = $marshaller ?? new DefaultMarshaller();
|
|||
|
}
|
|||
|
|
|||
|
public static function isSupported()
|
|||
|
{
|
|||
|
return \extension_loaded('memcached') && version_compare(phpversion('memcached'), \PHP_VERSION_ID >= 80100 ? '3.1.6' : '2.2.0', '>=');
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* Creates a Memcached instance.
|
|||
|
*
|
|||
|
* By default, the binary protocol, no block, and libketama compatible options are enabled.
|
|||
|
*
|
|||
|
* Examples for servers:
|
|||
|
* - 'memcached://user:pass@localhost?weight=33'
|
|||
|
* - [['localhost', 11211, 33]]
|
|||
|
*
|
|||
|
* @param array[]|string|string[] $servers An array of servers, a DSN, or an array of DSNs
|
|||
|
*
|
|||
|
* @return \Memcached
|
|||
|
*
|
|||
|
* @throws \ErrorException When invalid options or servers are provided
|
|||
|
*/
|
|||
|
public static function createConnection($servers, array $options = [])
|
|||
|
{
|
|||
|
if (\is_string($servers)) {
|
|||
|
$servers = [$servers];
|
|||
|
} elseif (!\is_array($servers)) {
|
|||
|
throw new InvalidArgumentException(sprintf('MemcachedAdapter::createClient() expects array or string as first argument, "%s" given.', get_debug_type($servers)));
|
|||
|
}
|
|||
|
if (!static::isSupported()) {
|
|||
|
throw new CacheException('Memcached '.(\PHP_VERSION_ID >= 80100 ? '> 3.1.5' : '>= 2.2.0').' is required.');
|
|||
|
}
|
|||
|
set_error_handler(function ($type, $msg, $file, $line) { throw new \ErrorException($msg, 0, $type, $file, $line); });
|
|||
|
try {
|
|||
|
$options += static::DEFAULT_CLIENT_OPTIONS;
|
|||
|
$client = new \Memcached($options['persistent_id']);
|
|||
|
$username = $options['username'];
|
|||
|
$password = $options['password'];
|
|||
|
|
|||
|
// parse any DSN in $servers
|
|||
|
foreach ($servers as $i => $dsn) {
|
|||
|
if (\is_array($dsn)) {
|
|||
|
continue;
|
|||
|
}
|
|||
|
if (!str_starts_with($dsn, 'memcached:')) {
|
|||
|
throw new InvalidArgumentException(sprintf('Invalid Memcached DSN: "%s" does not start with "memcached:".', $dsn));
|
|||
|
}
|
|||
|
$params = preg_replace_callback('#^memcached:(//)?(?:([^@]*+)@)?#', function ($m) use (&$username, &$password) {
|
|||
|
if (!empty($m[2])) {
|
|||
|
[$username, $password] = explode(':', $m[2], 2) + [1 => null];
|
|||
|
}
|
|||
|
|
|||
|
return 'file:'.($m[1] ?? '');
|
|||
|
}, $dsn);
|
|||
|
if (false === $params = parse_url($params)) {
|
|||
|
throw new InvalidArgumentException(sprintf('Invalid Memcached DSN: "%s".', $dsn));
|
|||
|
}
|
|||
|
$query = $hosts = [];
|
|||
|
if (isset($params['query'])) {
|
|||
|
parse_str($params['query'], $query);
|
|||
|
|
|||
|
if (isset($query['host'])) {
|
|||
|
if (!\is_array($hosts = $query['host'])) {
|
|||
|
throw new InvalidArgumentException(sprintf('Invalid Memcached DSN: "%s".', $dsn));
|
|||
|
}
|
|||
|
foreach ($hosts as $host => $weight) {
|
|||
|
if (false === $port = strrpos($host, ':')) {
|
|||
|
$hosts[$host] = [$host, 11211, (int) $weight];
|
|||
|
} else {
|
|||
|
$hosts[$host] = [substr($host, 0, $port), (int) substr($host, 1 + $port), (int) $weight];
|
|||
|
}
|
|||
|
}
|
|||
|
$hosts = array_values($hosts);
|
|||
|
unset($query['host']);
|
|||
|
}
|
|||
|
if ($hosts && !isset($params['host']) && !isset($params['path'])) {
|
|||
|
unset($servers[$i]);
|
|||
|
$servers = array_merge($servers, $hosts);
|
|||
|
continue;
|
|||
|
}
|
|||
|
}
|
|||
|
if (!isset($params['host']) && !isset($params['path'])) {
|
|||
|
throw new InvalidArgumentException(sprintf('Invalid Memcached DSN: "%s".', $dsn));
|
|||
|
}
|
|||
|
if (isset($params['path']) && preg_match('#/(\d+)$#', $params['path'], $m)) {
|
|||
|
$params['weight'] = $m[1];
|
|||
|
$params['path'] = substr($params['path'], 0, -\strlen($m[0]));
|
|||
|
}
|
|||
|
$params += [
|
|||
|
'host' => $params['host'] ?? $params['path'],
|
|||
|
'port' => isset($params['host']) ? 11211 : null,
|
|||
|
'weight' => 0,
|
|||
|
];
|
|||
|
if ($query) {
|
|||
|
$params += $query;
|
|||
|
$options = $query + $options;
|
|||
|
}
|
|||
|
|
|||
|
$servers[$i] = [$params['host'], $params['port'], $params['weight']];
|
|||
|
|
|||
|
if ($hosts) {
|
|||
|
$servers = array_merge($servers, $hosts);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
// set client's options
|
|||
|
unset($options['persistent_id'], $options['username'], $options['password'], $options['weight'], $options['lazy']);
|
|||
|
$options = array_change_key_case($options, \CASE_UPPER);
|
|||
|
$client->setOption(\Memcached::OPT_BINARY_PROTOCOL, true);
|
|||
|
$client->setOption(\Memcached::OPT_NO_BLOCK, true);
|
|||
|
$client->setOption(\Memcached::OPT_TCP_NODELAY, true);
|
|||
|
if (!\array_key_exists('LIBKETAMA_COMPATIBLE', $options) && !\array_key_exists(\Memcached::OPT_LIBKETAMA_COMPATIBLE, $options)) {
|
|||
|
$client->setOption(\Memcached::OPT_LIBKETAMA_COMPATIBLE, true);
|
|||
|
}
|
|||
|
foreach ($options as $name => $value) {
|
|||
|
if (\is_int($name)) {
|
|||
|
continue;
|
|||
|
}
|
|||
|
if ('HASH' === $name || 'SERIALIZER' === $name || 'DISTRIBUTION' === $name) {
|
|||
|
$value = \constant('Memcached::'.$name.'_'.strtoupper($value));
|
|||
|
}
|
|||
|
unset($options[$name]);
|
|||
|
|
|||
|
if (\defined('Memcached::OPT_'.$name)) {
|
|||
|
$options[\constant('Memcached::OPT_'.$name)] = $value;
|
|||
|
}
|
|||
|
}
|
|||
|
$client->setOptions($options);
|
|||
|
|
|||
|
// set client's servers, taking care of persistent connections
|
|||
|
if (!$client->isPristine()) {
|
|||
|
$oldServers = [];
|
|||
|
foreach ($client->getServerList() as $server) {
|
|||
|
$oldServers[] = [$server['host'], $server['port']];
|
|||
|
}
|
|||
|
|
|||
|
$newServers = [];
|
|||
|
foreach ($servers as $server) {
|
|||
|
if (1 < \count($server)) {
|
|||
|
$server = array_values($server);
|
|||
|
unset($server[2]);
|
|||
|
$server[1] = (int) $server[1];
|
|||
|
}
|
|||
|
$newServers[] = $server;
|
|||
|
}
|
|||
|
|
|||
|
if ($oldServers !== $newServers) {
|
|||
|
$client->resetServerList();
|
|||
|
$client->addServers($servers);
|
|||
|
}
|
|||
|
} else {
|
|||
|
$client->addServers($servers);
|
|||
|
}
|
|||
|
|
|||
|
if (null !== $username || null !== $password) {
|
|||
|
if (!method_exists($client, 'setSaslAuthData')) {
|
|||
|
trigger_error('Missing SASL support: the memcached extension must be compiled with --enable-memcached-sasl.');
|
|||
|
}
|
|||
|
$client->setSaslAuthData($username, $password);
|
|||
|
}
|
|||
|
|
|||
|
return $client;
|
|||
|
} finally {
|
|||
|
restore_error_handler();
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* {@inheritdoc}
|
|||
|
*/
|
|||
|
protected function doSave(array $values, int $lifetime)
|
|||
|
{
|
|||
|
if (!$values = $this->marshaller->marshall($values, $failed)) {
|
|||
|
return $failed;
|
|||
|
}
|
|||
|
|
|||
|
if ($lifetime && $lifetime > 30 * 86400) {
|
|||
|
$lifetime += time();
|
|||
|
}
|
|||
|
|
|||
|
$encodedValues = [];
|
|||
|
foreach ($values as $key => $value) {
|
|||
|
$encodedValues[self::encodeKey($key)] = $value;
|
|||
|
}
|
|||
|
|
|||
|
return $this->checkResultCode($this->getClient()->setMulti($encodedValues, $lifetime)) ? $failed : false;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* {@inheritdoc}
|
|||
|
*/
|
|||
|
protected function doFetch(array $ids)
|
|||
|
{
|
|||
|
try {
|
|||
|
$encodedIds = array_map([__CLASS__, 'encodeKey'], $ids);
|
|||
|
|
|||
|
$encodedResult = $this->checkResultCode($this->getClient()->getMulti($encodedIds));
|
|||
|
|
|||
|
$result = [];
|
|||
|
foreach ($encodedResult as $key => $value) {
|
|||
|
$result[self::decodeKey($key)] = $this->marshaller->unmarshall($value);
|
|||
|
}
|
|||
|
|
|||
|
return $result;
|
|||
|
} catch (\Error $e) {
|
|||
|
throw new \ErrorException($e->getMessage(), $e->getCode(), \E_ERROR, $e->getFile(), $e->getLine());
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* {@inheritdoc}
|
|||
|
*/
|
|||
|
protected function doHave(string $id)
|
|||
|
{
|
|||
|
return false !== $this->getClient()->get(self::encodeKey($id)) || $this->checkResultCode(\Memcached::RES_SUCCESS === $this->client->getResultCode());
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* {@inheritdoc}
|
|||
|
*/
|
|||
|
protected function doDelete(array $ids)
|
|||
|
{
|
|||
|
$ok = true;
|
|||
|
$encodedIds = array_map([__CLASS__, 'encodeKey'], $ids);
|
|||
|
foreach ($this->checkResultCode($this->getClient()->deleteMulti($encodedIds)) as $result) {
|
|||
|
if (\Memcached::RES_SUCCESS !== $result && \Memcached::RES_NOTFOUND !== $result) {
|
|||
|
$ok = false;
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
return $ok;
|
|||
|
}
|
|||
|
|
|||
|
/**
|
|||
|
* {@inheritdoc}
|
|||
|
*/
|
|||
|
protected function doClear(string $namespace)
|
|||
|
{
|
|||
|
return '' === $namespace && $this->getClient()->flush();
|
|||
|
}
|
|||
|
|
|||
|
private function checkResultCode($result)
|
|||
|
{
|
|||
|
$code = $this->client->getResultCode();
|
|||
|
|
|||
|
if (\Memcached::RES_SUCCESS === $code || \Memcached::RES_NOTFOUND === $code) {
|
|||
|
return $result;
|
|||
|
}
|
|||
|
|
|||
|
throw new CacheException('MemcachedAdapter client error: '.strtolower($this->client->getResultMessage()));
|
|||
|
}
|
|||
|
|
|||
|
private function getClient(): \Memcached
|
|||
|
{
|
|||
|
if ($this->client) {
|
|||
|
return $this->client;
|
|||
|
}
|
|||
|
|
|||
|
$opt = $this->lazyClient->getOption(\Memcached::OPT_SERIALIZER);
|
|||
|
if (\Memcached::SERIALIZER_PHP !== $opt && \Memcached::SERIALIZER_IGBINARY !== $opt) {
|
|||
|
throw new CacheException('MemcachedAdapter: "serializer" option must be "php" or "igbinary".');
|
|||
|
}
|
|||
|
if ('' !== $prefix = (string) $this->lazyClient->getOption(\Memcached::OPT_PREFIX_KEY)) {
|
|||
|
throw new CacheException(sprintf('MemcachedAdapter: "prefix_key" option must be empty when using proxified connections, "%s" given.', $prefix));
|
|||
|
}
|
|||
|
|
|||
|
return $this->client = $this->lazyClient;
|
|||
|
}
|
|||
|
|
|||
|
private static function encodeKey(string $key): string
|
|||
|
{
|
|||
|
return strtr($key, self::RESERVED_MEMCACHED, self::RESERVED_PSR6);
|
|||
|
}
|
|||
|
|
|||
|
private static function decodeKey(string $key): string
|
|||
|
{
|
|||
|
return strtr($key, self::RESERVED_PSR6, self::RESERVED_MEMCACHED);
|
|||
|
}
|
|||
|
}
|