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<?php
namespace Illuminate\Broadcasting\Broadcasters;
use Illuminate\Support\Arr;
use Illuminate\Support\Str;
use Illuminate\Contracts\Redis\Database as RedisDatabase;
use Symfony\Component\HttpKernel\Exception\HttpException;
class RedisBroadcaster extends Broadcaster
{
/**
* The Redis instance.
*
* @var \Illuminate\Contracts\Redis\Database
*/
protected $redis;
/**
* The Redis connection to use for broadcasting.
*
* @var string
*/
protected $connection;
/**
* Create a new broadcaster instance.
*
* @param \Illuminate\Contracts\Redis\Database $redis
* @param string $connection
* @return void
*/
public function __construct(RedisDatabase $redis, $connection = null)
{
$this->redis = $redis;
$this->connection = $connection;
}
/**
* Authenticate the incoming request for a given channel.
*
* @param \Illuminate\Http\Request $request
* @return mixed
*/
public function auth($request)
{
if (Str::startsWith($request->channel_name, ['private-', 'presence-']) &&
! $request->user()) {
throw new HttpException(403);
}
$channelName = Str::startsWith($request->channel_name, 'private-')
? Str::replaceFirst('private-', '', $request->channel_name)
: Str::replaceFirst('presence-', '', $request->channel_name);
return parent::verifyUserCanAccessChannel(
$request, $channelName
);
}
/**
* Return the valid authentication response.
*
* @param \Illuminate\Http\Request $request
* @param mixed $result
* @return mixed
*/
public function validAuthenticationResponse($request, $result)
{
if (is_bool($result)) {
return json_encode($result);
}
return json_encode(['channel_data' => [
'user_id' => $request->user()->getKey(),
'user_info' => $result,
]]);
}
/**
* Broadcast the given event.
*
* @param array $channels
* @param string $event
* @param array $payload
* @return void
*/
public function broadcast(array $channels, $event, array $payload = [])
{
$connection = $this->redis->connection($this->connection);
$socket = Arr::pull($payload, 'socket');
$payload = json_encode([
'event' => $event, 'data' => $payload, 'socket' => $socket,
]);
foreach ($this->formatChannels($channels) as $channel) {
$connection->publish($channel, $payload);
}
}
}