| Total Complexity | 41 |
| Total Lines | 375 |
| Duplicated Lines | 0 % |
| Changes | 5 | ||
| Bugs | 3 | Features | 1 |
Complex classes like InteractsWithWebsocket often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use InteractsWithWebsocket, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 26 | trait InteractsWithWebsocket |
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| 27 | { |
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| 28 | /** |
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| 29 | * @var boolean |
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| 30 | */ |
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| 31 | protected $isServerWebsocket = false; |
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| 32 | |||
| 33 | /** |
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| 34 | * @var \SwooleTW\Http\Websocket\HandlerContract |
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| 35 | */ |
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| 36 | protected $websocketHandler; |
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| 37 | |||
| 38 | /** |
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| 39 | * @var \SwooleTW\Http\Websocket\Parser |
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| 40 | */ |
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| 41 | protected $payloadParser; |
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| 42 | |||
| 43 | /** |
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| 44 | * @var \SwooleTW\Http\Websocket\Rooms\RoomContract |
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| 45 | */ |
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| 46 | protected $websocketRoom; |
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| 47 | |||
| 48 | /** |
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| 49 | * Websocket server events. |
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| 50 | * |
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| 51 | * @var array |
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| 52 | */ |
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| 53 | protected $wsEvents = ['open', 'message', 'close']; |
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| 54 | |||
| 55 | /** |
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| 56 | * "onHandShake" listener. |
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| 57 | * @param \Swoole\Http\Request $swooleRequest |
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| 58 | * @param \Swoole\Http\Response $response |
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| 59 | */ |
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| 60 | public function onHandShake($swooleRequest, $response) |
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| 66 | ); |
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| 67 | } |
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| 68 | |||
| 69 | /** |
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| 70 | * "onOpen" listener. |
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| 71 | * |
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| 72 | * @param \Swoole\Websocket\Server $server |
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| 73 | * @param \Swoole\Http\Request $swooleRequest |
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| 74 | * @param \Swoole\Http\Response $response (optional) |
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| 75 | */ |
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| 76 | public function onOpen($server, $swooleRequest, $response = null) |
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| 77 | { |
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| 78 | $illuminateRequest = Request::make($swooleRequest)->toIlluminate(); |
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| 79 | $websocket = $this->app->make(Websocket::class); |
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| 80 | $sandbox = $this->app->make(Sandbox::class); |
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| 81 | $handshakeHandler = $this->app->make('config') |
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| 82 | ->get('swoole_websocket.handshake.handler'); |
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| 83 | |||
| 84 | try { |
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| 85 | $websocket->reset(true)->setSender($swooleRequest->fd); |
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| 86 | // set currnt request to sandbox |
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| 87 | $sandbox->setRequest($illuminateRequest); |
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| 88 | // enable sandbox |
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| 89 | $sandbox->enable(); |
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| 90 | // call customized handshake handler |
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| 91 | if ($response && ! $this->app->make($handshakeHandler)->handle($swooleRequest, $response)) { |
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| 92 | return; |
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| 93 | } |
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| 94 | // check if socket.io connection established |
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| 95 | if (! $this->websocketHandler->onOpen($swooleRequest->fd, $illuminateRequest)) { |
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| 96 | return; |
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| 97 | } |
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| 98 | // trigger 'connect' websocket event |
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| 99 | if ($websocket->eventExists('connect')) { |
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| 100 | // set sandbox container to websocket pipeline |
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| 101 | $websocket->setContainer($sandbox->getApplication()); |
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| 102 | $websocket->call('connect', $illuminateRequest); |
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| 103 | } |
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| 104 | } catch (Throwable $e) { |
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| 105 | $this->logServerError($e); |
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| 106 | } finally { |
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| 107 | // disable and recycle sandbox resource |
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| 108 | $sandbox->disable(); |
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| 109 | } |
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| 110 | } |
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| 111 | |||
| 112 | /** |
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| 113 | * "onMessage" listener. |
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| 114 | * |
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| 115 | * @param \Swoole\Websocket\Server $server |
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| 116 | * @param \Swoole\Websocket\Frame $frame |
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| 117 | */ |
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| 118 | public function onMessage($server, $frame) |
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| 147 | } |
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| 148 | } |
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| 149 | |||
| 150 | /** |
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| 151 | * "onClose" listener. |
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| 152 | * |
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| 153 | * @param \Swoole\Websocket\Server $server |
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| 154 | * @param int $fd |
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| 155 | * @param int $reactorId |
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| 156 | */ |
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| 157 | public function onClose($server, $fd, $reactorId) |
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| 158 | { |
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| 159 | if (! $this->isServerWebsocket($fd) || ! $server instanceof WebsocketServer) { |
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| 160 | return; |
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| 161 | } |
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| 162 | |||
| 163 | $websocket = $this->app->make(Websocket::class); |
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| 164 | $sandbox = $this->app->make(Sandbox::class); |
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| 165 | |||
| 166 | try { |
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| 167 | $websocket->reset(true)->setSender($fd); |
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| 168 | |||
| 169 | // enable sandbox |
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| 170 | $sandbox->enable(); |
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| 171 | |||
| 172 | // trigger 'disconnect' websocket event |
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| 173 | if ($websocket->eventExists('disconnect')) { |
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| 174 | $websocket->call('disconnect'); |
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| 175 | } else { |
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| 176 | $this->websocketHandler->onClose($fd, $reactorId); |
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| 177 | } |
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| 178 | // leave all rooms |
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| 179 | $websocket->leave(); |
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| 180 | } catch (Throwable $e) { |
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| 181 | $this->logServerError($e); |
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| 182 | } finally { |
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| 183 | // disable and recycle sandbox resource |
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| 184 | $sandbox->disable(); |
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| 185 | } |
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| 186 | } |
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| 187 | |||
| 188 | /** |
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| 189 | * Indicates if a packet is websocket push action. |
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| 190 | * |
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| 191 | * @param mixed |
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| 192 | * |
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| 193 | * @return bool |
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| 194 | */ |
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| 195 | protected function isWebsocketPushPacket($packet) |
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| 196 | { |
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| 197 | if (! is_array($packet)) { |
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| 198 | return false; |
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| 199 | } |
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| 200 | |||
| 201 | return $this->isServerWebsocket |
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| 202 | && array_key_exists('action', $packet) |
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| 203 | && $packet['action'] === Websocket::PUSH_ACTION; |
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| 204 | } |
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| 205 | |||
| 206 | |||
| 207 | /** |
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| 208 | * Push websocket message to clients. |
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| 209 | * |
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| 210 | * @param \Swoole\Websocket\Server $server |
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| 211 | * @param mixed $data |
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| 212 | */ |
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| 213 | public function pushMessage($server, array $data) |
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| 214 | { |
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| 215 | $pusher = Pusher::make($data, $server); |
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| 216 | $pusher->push($this->payloadParser->encode( |
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| 217 | $pusher->getEvent(), |
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| 218 | $pusher->getMessage() |
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| 219 | )); |
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| 220 | } |
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| 221 | |||
| 222 | /** |
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| 223 | * Set frame parser for websocket. |
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| 224 | * |
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| 225 | * @param \SwooleTW\Http\Websocket\Parser $payloadParser |
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| 226 | * |
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| 227 | * @return \SwooleTW\Http\Concerns\InteractsWithWebsocket |
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| 228 | */ |
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| 229 | public function setPayloadParser(Parser $payloadParser) |
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| 230 | { |
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| 231 | $this->payloadParser = $payloadParser; |
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| 232 | |||
| 233 | return $this; |
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| 234 | } |
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| 235 | |||
| 236 | /** |
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| 237 | * Get frame parser for websocket. |
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| 238 | */ |
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| 239 | public function getPayloadParser() |
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| 240 | { |
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| 241 | return $this->payloadParser; |
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| 242 | } |
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| 243 | |||
| 244 | /** |
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| 245 | * Prepare settings if websocket is enabled. |
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| 246 | */ |
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| 247 | protected function prepareWebsocket() |
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| 248 | { |
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| 249 | $config = $this->container->make('config'); |
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| 250 | $parser = $config->get('swoole_websocket.parser'); |
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| 251 | |||
| 252 | if (! $this->isServerWebsocket = $config->get('swoole_http.websocket.enabled')) { |
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| 253 | return; |
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| 254 | } |
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| 255 | |||
| 256 | if ($config->get('swoole_websocket.handshake.enabled')) { |
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| 257 | $this->wsEvents = array_merge($this->wsEvents, ['handshake']); |
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| 258 | } |
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| 259 | |||
| 260 | $this->events = array_merge($this->events ?? [], $this->wsEvents); |
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| 261 | $this->prepareWebsocketRoom(); |
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| 262 | $this->setPayloadParser(new $parser); |
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| 263 | } |
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| 264 | |||
| 265 | /** |
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| 266 | * Check if it's a websocket fd. |
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| 267 | * |
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| 268 | * @param int $fd |
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| 269 | * |
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| 270 | * @return bool |
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| 271 | */ |
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| 272 | protected function isServerWebsocket(int $fd): bool |
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| 273 | { |
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| 274 | return array_key_exists( |
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| 275 | 'websocket_status', |
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| 276 | $this->container->make(Server::class) |
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| 277 | ->connection_info($fd) |
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| 278 | ); |
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| 279 | } |
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| 280 | |||
| 281 | /** |
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| 282 | * Prepare websocket handler for onOpen and onClose callback. |
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| 283 | * |
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| 284 | * @throws \Exception |
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| 285 | */ |
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| 286 | protected function prepareWebsocketHandler() |
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| 287 | { |
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| 288 | $handlerClass = $this->container->make('config')->get('swoole_websocket.handler'); |
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| 289 | |||
| 290 | if (! $handlerClass) { |
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| 291 | throw new WebsocketNotSetInConfigException; |
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| 292 | } |
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| 293 | |||
| 294 | $this->setWebsocketHandler($this->app->make($handlerClass)); |
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| 295 | } |
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| 296 | |||
| 297 | /** |
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| 298 | * Prepare websocket room. |
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| 299 | */ |
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| 300 | protected function prepareWebsocketRoom() |
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| 301 | { |
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| 302 | $config = $this->container->make('config'); |
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| 303 | $driver = $config->get('swoole_websocket.default'); |
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| 304 | $websocketConfig = $config->get("swoole_websocket.settings.{$driver}"); |
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| 305 | $className = $config->get("swoole_websocket.drivers.{$driver}"); |
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| 306 | |||
| 307 | $this->websocketRoom = new $className($websocketConfig); |
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| 308 | $this->websocketRoom->prepare(); |
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| 309 | } |
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| 310 | |||
| 311 | /** |
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| 312 | * Set websocket handler. |
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| 313 | * |
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| 314 | * @param \SwooleTW\Http\Websocket\HandlerContract $handler |
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| 315 | * |
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| 316 | * @return \SwooleTW\Http\Concerns\InteractsWithWebsocket |
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| 317 | */ |
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| 318 | public function setWebsocketHandler(HandlerContract $handler) |
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| 319 | { |
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| 320 | $this->websocketHandler = $handler; |
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| 321 | |||
| 322 | return $this; |
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| 323 | } |
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| 324 | |||
| 325 | /** |
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| 326 | * Get websocket handler. |
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| 327 | * |
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| 328 | * @return \SwooleTW\Http\Websocket\HandlerContract |
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| 329 | */ |
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| 330 | public function getWebsocketHandler(): HandlerContract |
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| 333 | } |
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| 334 | |||
| 335 | /** |
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| 336 | * @param string $class |
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| 337 | * @param array $settings |
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| 338 | * |
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| 339 | * @return \SwooleTW\Http\Websocket\Rooms\RoomContract |
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| 340 | */ |
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| 341 | protected function createRoom(string $class, array $settings): RoomContract |
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| 342 | { |
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| 343 | return new $class($settings); |
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| 344 | } |
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| 345 | |||
| 346 | /** |
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| 347 | * Bind room instance to Laravel app container. |
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| 348 | */ |
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| 349 | protected function bindRoom(): void |
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| 356 | } |
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| 357 | |||
| 358 | /** |
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| 359 | * Bind websocket instance to Laravel app container. |
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| 360 | */ |
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| 361 | protected function bindWebsocket() |
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| 362 | { |
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| 363 | $this->app->singleton(Websocket::class, function (Container $app) { |
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| 364 | return new Websocket($app->make(RoomContract::class), new Pipeline($app)); |
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| 365 | }); |
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| 366 | |||
| 367 | $this->app->alias(Websocket::class, 'swoole.websocket'); |
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| 368 | } |
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| 369 | |||
| 370 | /** |
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| 371 | * Load websocket routes file. |
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| 372 | */ |
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| 373 | protected function loadWebsocketRoutes() |
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| 383 | } |
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| 384 | |||
| 385 | /** |
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| 386 | * Indicates if the payload is websocket push. |
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| 387 | * |
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| 388 | * @param mixed $payload |
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| 389 | * |
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| 390 | * @return boolean |
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| 391 | */ |
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| 392 | public function isWebsocketPushPayload($payload): bool |
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| 403 |