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<?php |
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namespace BeyondCode\LaravelWebSockets\PubSub\Redis; |
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use BeyondCode\LaravelWebSockets\PubSub\PubSubInterface; |
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use BeyondCode\LaravelWebSockets\WebSockets\Channels\ChannelManager; |
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use Clue\React\Block; |
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use Clue\React\Redis\Client; |
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use Clue\React\Redis\Factory; |
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use Illuminate\Support\Str; |
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use React\EventLoop\LoopInterface; |
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use React\Promise\PromiseInterface; |
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class RedisClient implements PubSubInterface |
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{ |
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const REDIS_KEY = ':websockets:replication:'; |
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protected $apps; |
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protected $loop; |
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protected $serverId; |
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protected $publishClient; |
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protected $subscribeClient; |
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public function __construct() |
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{ |
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$this->apps = collect(config('websockets.apps')); |
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$this->serverId = Str::uuid()->toString(); |
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} |
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public function publish(string $appId, array $payload): bool |
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{ |
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$payload['appId'] = $appId; |
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$payload['serverId'] = $this->serverId; |
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$this->publishClient->publish(self::REDIS_KEY, json_encode($payload)); |
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return true; |
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} |
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public function subscribe(LoopInterface $loop): PubSubInterface |
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{ |
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$this->loop = $loop; |
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[$this->publishClient, $this->subscribeClient] = Block\awaitAll([$this->publishConnection(), $this->subscribeConnection()], $this->loop); |
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return $this->publishClient; |
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} |
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protected function publishConnection(): PromiseInterface |
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{ |
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$connectionUri = $this->getConnectionUri(); |
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$factory = new Factory($this->loop); |
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return $factory->createClient($connectionUri)->then( |
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function (Client $client) { |
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$this->publishClient = $client; |
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return $this; |
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} |
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); |
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} |
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protected function subscribeConnection(): PromiseInterface |
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{ |
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$connectionUri = $this->getConnectionUri(); |
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$factory = new Factory($this->loop); |
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return $factory->createClient($connectionUri)->then( |
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function (Client $client) { |
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$this->subscribeClient = $client; |
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$this->onConnected(); |
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return $this; |
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} |
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); |
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} |
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protected function getConnectionUri() |
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{ |
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$name = config('websockets.replication.connection') ?? 'default'; |
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$config = config('database.redis.' . $name); |
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$host = $config['host']; |
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$port = $config['port'] ? (':' . $config['port']) : ':6379'; |
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$query = []; |
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if ($config['password']) { |
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$query['password'] = $config['password']; |
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} |
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if ($config['database']) { |
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$query['database'] = $config['database']; |
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} |
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$query = http_build_query($query); |
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return "redis://$host$port" . ($query ? '?' . $query : ''); |
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} |
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protected function onConnected() |
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{ |
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$this->subscribeClient->subscribe(self::REDIS_KEY); |
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$this->subscribeClient->on('message', function ($channel, $payload) { |
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$this->onMessage($channel, $payload); |
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}); |
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} |
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protected function onMessage($channel, $payload) |
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{ |
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$payload = json_decode($payload); |
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if ($this->serverId === $payload->serverId) { |
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return false; |
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} |
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/* @var $channelManager ChannelManager */ |
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$channelManager = app(ChannelManager::class); |
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$channelSearch = $channelManager->find($payload->appId, $payload->channel); |
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if ($channelSearch === null) { |
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return false; |
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} |
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$channel->broadcast($payload); |
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return true; |
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} |
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} |
beyondcode /
laravel-websockets
