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<?php
namespace Illuminate\Redis\Connectors;
use Illuminate\Contracts\Redis\Connector;
use Illuminate\Redis\Connections\PhpRedisClusterConnection;
use Illuminate\Redis\Connections\PhpRedisConnection;
use Illuminate\Support\Arr;
use Illuminate\Support\Facades\Redis as RedisFacade;
use Illuminate\Support\Str;
use LogicException;
use Redis;
use RedisCluster;
class PhpRedisConnector implements Connector
{
/**
* Create a new clustered PhpRedis connection.
*
* @param array $config
* @param array $options
* @return \Illuminate\Redis\Connections\PhpRedisConnection
*/
public function connect(array $config, array $options)
{
$connector = function () use ($config, $options) {
return $this->createClient(array_merge(
$config, $options, Arr::pull($config, 'options', [])
));
};
return new PhpRedisConnection($connector(), $connector, $config);
}
/**
* Create a new clustered PhpRedis connection.
*
* @param array $config
* @param array $clusterOptions
* @param array $options
* @return \Illuminate\Redis\Connections\PhpRedisClusterConnection
*/
public function connectToCluster(array $config, array $clusterOptions, array $options)
{
$options = array_merge($options, $clusterOptions, Arr::pull($config, 'options', []));
return new PhpRedisClusterConnection($this->createRedisClusterInstance(
array_map([$this, 'buildClusterConnectionString'], $config), $options
));
}
/**
* Build a single cluster seed string from an array.
*
* @param array $server
* @return string
*/
protected function buildClusterConnectionString(array $server)
{
return $this->formatHost($server).':'.$server['port'].'?'.Arr::query(Arr::only($server, [
'database', 'password', 'prefix', 'read_timeout',
]));
}
/**
* Create the Redis client instance.
*
* @param array $config
* @return \Redis
*
* @throws \LogicException
*/
protected function createClient(array $config)
{
return tap(new Redis, function ($client) use ($config) {
if ($client instanceof RedisFacade) {
throw new LogicException(
extension_loaded('redis')
? 'Please remove or rename the Redis facade alias in your "app" configuration file in order to avoid collision with the PHP Redis extension.'
: 'Please make sure the PHP Redis extension is installed and enabled.'
);
}
$this->establishConnection($client, $config);
if (! empty($config['password'])) {
$client->auth($config['password']);
}
if (isset($config['database'])) {
$client->select((int) $config['database']);
}
if (! empty($config['prefix'])) {
$client->setOption(Redis::OPT_PREFIX, $config['prefix']);
}
if (! empty($config['read_timeout'])) {
$client->setOption(Redis::OPT_READ_TIMEOUT, $config['read_timeout']);
}
if (! empty($config['scan'])) {
$client->setOption(Redis::OPT_SCAN, $config['scan']);
}
if (! empty($config['name'])) {
$client->client('SETNAME', $config['name']);
}
});
}
/**
* Establish a connection with the Redis host.
*
* @param \Redis $client
* @param array $config
* @return void
*/
protected function establishConnection($client, array $config)
{
$persistent = $config['persistent'] ?? false;
$parameters = [
$this->formatHost($config),
$config['port'],
Arr::get($config, 'timeout', 0.0),
$persistent ? Arr::get($config, 'persistent_id', null) : null,
Arr::get($config, 'retry_interval', 0),
];
if (version_compare(phpversion('redis'), '3.1.3', '>=')) {
$parameters[] = Arr::get($config, 'read_timeout', 0.0);
}
if (version_compare(phpversion('redis'), '5.3.0', '>=')) {
if (! is_null($context = Arr::get($config, 'context'))) {
$parameters[] = $context;
}
}
$client->{($persistent ? 'pconnect' : 'connect')}(...$parameters);
}
/**
* Create a new redis cluster instance.
*
* @param array $servers
* @param array $options
* @return \RedisCluster
*/
protected function createRedisClusterInstance(array $servers, array $options)
{
$parameters = [
null,
array_values($servers),
$options['timeout'] ?? 0,
$options['read_timeout'] ?? 0,
isset($options['persistent']) && $options['persistent'],
];
if (version_compare(phpversion('redis'), '4.3.0', '>=')) {
$parameters[] = $options['password'] ?? null;
}
if (version_compare(phpversion('redis'), '5.3.2', '>=')) {
if (! is_null($context = Arr::get($options, 'context'))) {
$parameters[] = $context;
}
}
return tap(new RedisCluster(...$parameters), function ($client) use ($options) {
if (! empty($options['prefix'])) {
$client->setOption(RedisCluster::OPT_PREFIX, $options['prefix']);
}
if (! empty($options['scan'])) {
$client->setOption(RedisCluster::OPT_SCAN, $options['scan']);
}
if (! empty($options['failover'])) {
$client->setOption(RedisCluster::OPT_SLAVE_FAILOVER, $options['failover']);
}
if (! empty($options['name'])) {
$client->client('SETNAME', $options['name']);
}
});
}
/**
* Format the host using the scheme if available.
*
* @param array $options
* @return string
*/
protected function formatHost(array $options)
{
if (isset($options['scheme'])) {
return Str::start($options['host'], "{$options['scheme']}://");
}
return $options['host'];
}
}