| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | declare(strict_types=1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | namespace Opekunov\Centrifugo; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use Exception; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use Illuminate\Broadcasting\Broadcasters\Broadcaster; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | use Illuminate\Broadcasting\BroadcastException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | use Symfony\Component\HttpKernel\Exception\HttpException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | class CentrifugoBroadcaster extends Broadcaster | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |      * The Centrifugo SDK instance. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |      * @var Contracts\CentrifugoInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |     protected $centrifugo; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |      * Create a new broadcaster instance. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |      * @param Centrifugo $centrifugo | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     public function __construct(Centrifugo $centrifugo) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |         $this->centrifugo = $centrifugo; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |      * Authenticate the incoming request for a given channel. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |      * @param \Illuminate\Http\Request $request | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |      * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |     public function auth($request) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |         if ($request->user()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |             $client = $this->getClientFromRequest($request); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |             $channels = $this->getChannelsFromRequest($request); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |             $response = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |             $privateResponse = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |             foreach ($channels as $channel) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |                 $channelName = $this->getChannelName($channel); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |                 try { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |                     $isAccessGranted = $this->verifyUserCanAccessChannel($request, $channelName); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |                 } catch (HttpException $e) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |                     $isAccessGranted = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |                 if ($private = $this->isPrivateChannel($channel)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |                     $privateResponse['channels'][] = $this->makeResponseForPrivateClient($isAccessGranted, $channel, $client); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |                 } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |                     $response[$channel] = $this->makeResponseForClient($isAccessGranted, $client); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |             return response($private ? $privateResponse : $response); | 
                            
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                | 63 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |             throw new HttpException(401); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |      * Return the valid authentication response. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |      * @param \Illuminate\Http\Request $request | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |      * @param mixed                    $result | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |      * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |     public function validAuthenticationResponse($request, $result) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |         return $result; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |      * Broadcast the given event. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |      * @param array  $channels | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |      * @param string $event | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |      * @param array  $payload | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |      * @return void | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |     public function broadcast(array $channels, $event, array $payload = []) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |         $payload['event'] = $event; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |         $channels = array_map(function ($channel) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |             return str_replace('private-', '$', (string) $channel); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |         }, $channels); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |         $response = $this->centrifugo->broadcast($this->formatChannels($channels), $payload); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |         if (is_array($response) && !isset($response['error'])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |             return; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |         throw new BroadcastException( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |             $response['error'] instanceof Exception ? $response['error']->getMessage() : $response['error']['message'], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |             $response['error'] instanceof Exception ? $response['error']->getCode() : $response['error']['code'], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |      * Get client from request. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |      * @param \Illuminate\Http\Request $request | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |      * @return string | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 115 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 116 |  |  |     private function getClientFromRequest($request) | 
            
                                                                        
                            
            
                                    
            
            
                | 117 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 118 |  |  |         return $request->get('client', ''); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |      * Get channels from request. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |      * @param \Illuminate\Http\Request $request | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |     private function getChannelsFromRequest($request) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |         $channels = $request->get('channels', []); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |         return is_array($channels) ? $channels : [$channels]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |      * Get channel name without $ symbol (if present). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |      * @param string $channel | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |      * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |     private function getChannelName(string $channel) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |         return $this->isPrivateChannel($channel) ? substr($channel, 1) : $channel; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |      * Check channel name by $ symbol. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |      * @param string $channel | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |     private function isPrivateChannel(string $channel): bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |         return substr($channel, 0, 1) === '$'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |      * Make response for client, based on access rights. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |      * @param bool   $access_granted | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |      * @param string $client | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |     private function makeResponseForClient(bool $access_granted, string $client) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |         $info = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |         return $access_granted ? [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |             'sign' => $this->centrifugo->generateConnectionToken($client, 0, $info), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |             'info' => $info, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |         ] : [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |             'status' => 403, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |      * Make response for client, based on access rights of private channel. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |      * @param bool   $accessGranted | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |      * @param string $channel | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |      * @param string $client | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |      * @param bool   $showInfo | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |     private function makeResponseForPrivateClient(bool $accessGranted, string $channel, string $client) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |         $info = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |         $showInfo = $this->centrifugo->showNodeInfo(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |         return $accessGranted ? [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |             'channel' => $channel, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |             'token'   => $this->centrifugo->generatePrivateChannelToken($client, $channel, 0, $info), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |             'info'    => $showInfo ? $this->centrifugo->info() : null, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |         ] : [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |             'status' => 403, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 204 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 205 |  |  |  |