php websocket客户端
2022-03-24 PHP 6323
class WebSocketClient { private $_host; private $_port; private $_path; private $_origin; private $_Socket = null; private $_connected = false; private $timeout = .01; private function __construct() { $this->connect('127.0.0.1', 8866, '/wss'); } public static $instance; public static function getInstance() { if (!(self::$instance instanceof self)) { self::$instance = new self(); } return self::$instance; } public function __destruct() { $this->disconnect(); } public function sendData($data, $type = 'text', $masked = true) { if ($this->_connected === false) { trigger_error("Not connected", E_USER_WARNING); return false; } if (!is_string($data)) { trigger_error("Not a string data was given.", E_USER_WARNING); return false; } if (strlen($data) == 0) { return false; } $res = @fwrite($this->_Socket, $this->_hybi10Encode($data, $type, $masked)); if ($res === 0 || $res === false) { return false; } $buffer = ' '; while ($buffer !== '') { $buffer = fread($this->_Socket, 512); } return true; } public function connect($host, $port, $path, $origin = false) { $this->_host = $host; $this->_port = $port; $this->_path = $path; $this->_origin = $origin; $key = base64_encode($this->_generateRandomString(16, false, true)); $header = "GET " . $path . " HTTP/1.1\r\n"; $header .= "Host: " . $host . ":" . $port . "\r\n"; $header .= "Upgrade: websocket\r\n"; $header .= "Connection: Upgrade\r\n"; //$header.= "Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits\r\n"; $header .= "Sec-WebSocket-Key: " . $key . "\r\n"; if ($origin !== false) { $header .= "Sec-WebSocket-Origin: " . $origin . "\r\n"; } $header .= "Sec-WebSocket-Version: 13\r\n\r\n"; $this->_Socket = @fsockopen($host, $port, $errno, $errstr, $this->timeout); if($errno!=0){ $errstr = iconv('gbk','utf-8',$errstr); echo "WebSocket Error:[#{$errno}] {$errstr}"; exit; } if($this->_Socket!=false){ socket_set_timeout($this->_Socket, $this->timeout, 10000); }else{ echo 'WebSocket Error:socket not connected'; exit; } //socket_write($this->_Socket, $header); $res = @fwrite($this->_Socket, $header); if ($res === false) { echo "fwrite false \n"; } $response = @fread($this->_Socket, 1500); //$response = socket_read($this->_Socket); preg_match('#Sec-WebSocket-Accept:\s(.*)$#mU', $response, $matches); if ($matches) { $keyAccept = trim($matches[1]); $expectedResonse = base64_encode(pack('H*', sha1($key . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11'))); $this->_connected = ($keyAccept === $expectedResonse) ? true : false; } return $this->_connected; } public function checkConnection() { $this->_connected = false; // send ping: $data = 'ping?'; @fwrite($this->_Socket, $this->_hybi10Encode($data, 'ping', true)); $response = @fread($this->_Socket, 300); if (empty($response)) { return false; } $response = $this->_hybi10Decode($response); if (!is_array($response)) { return false; } if (!isset($response['type']) || $response['type'] !== 'pong') { return false; } $this->_connected = true; return true; } public function disconnect() { $this->_connected = false; is_resource($this->_Socket) and fclose($this->_Socket); } public function reconnect() { sleep(10); $this->_connected = false; fclose($this->_Socket); $this->connect($this->_host, $this->_port, $this->_path, $this->_origin); } private function _generateRandomString($length = 10, $addSpaces = true, $addNumbers = true) { $characters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"ยง$%&/()=[]{}'; $useChars = array(); // select some random chars: for ($i = 0; $i < $length; $i++) { $useChars[] = $characters[mt_rand(0, strlen($characters) - 1)]; } // add spaces and numbers: if ($addSpaces === true) { array_push($useChars, ' ', ' ', ' ', ' ', ' ', ' '); } if ($addNumbers === true) { array_push($useChars, rand(0, 9), rand(0, 9), rand(0, 9)); } shuffle($useChars); $randomString = trim(implode('', $useChars)); $randomString = substr($randomString, 0, $length); return $randomString; } private function _hybi10Encode($payload, $type = 'text', $masked = true) { $frameHead = array(); $frame = ''; $payloadLength = strlen($payload); switch ($type) { case 'text': // first byte indicates FIN, Text-Frame (10000001): $frameHead[0] = 129; break; case 'close': // first byte indicates FIN, Close Frame(10001000): $frameHead[0] = 136; break; case 'ping': // first byte indicates FIN, Ping frame (10001001): $frameHead[0] = 137; break; case 'pong': // first byte indicates FIN, Pong frame (10001010): $frameHead[0] = 138; break; } // set mask and payload length (using 1, 3 or 9 bytes) if ($payloadLength > 65535) { $payloadLengthBin = str_split(sprintf('%064b', $payloadLength), 8); $frameHead[1] = ($masked === true) ? 255 : 127; for ($i = 0; $i < 8; $i++) { $frameHead[$i + 2] = bindec($payloadLengthBin[$i]); } // most significant bit MUST be 0 (close connection if frame too big) if ($frameHead[2] > 127) { $this->close(1004); return false; } } elseif ($payloadLength > 125) { $payloadLengthBin = str_split(sprintf('%016b', $payloadLength), 8); $frameHead[1] = ($masked === true) ? 254 : 126; $frameHead[2] = bindec($payloadLengthBin[0]); $frameHead[3] = bindec($payloadLengthBin[1]); } else { $frameHead[1] = ($masked === true) ? $payloadLength + 128 : $payloadLength; } // convert frame-head to string: foreach (array_keys($frameHead) as $i) { $frameHead[$i] = chr($frameHead[$i]); } if ($masked === true) { // generate a random mask: $mask = array(); for ($i = 0; $i < 4; $i++) { $mask[$i] = chr(rand(0, 255)); } $frameHead = array_merge($frameHead, $mask); } $frame = implode('', $frameHead); // append payload to frame: $framePayload = array(); for ($i = 0; $i < $payloadLength; $i++) { $frame .= ($masked === true) ? $payload[$i] ^ $mask[$i % 4] : $payload[$i]; } return $frame; } private function _hybi10Decode($data) { $payloadLength = ''; $mask = ''; $unmaskedPayload = ''; $decodedData = array(); // estimate frame type: $firstByteBinary = sprintf('%08b', ord($data[0])); $secondByteBinary = sprintf('%08b', ord($data[1])); $opcode = bindec(substr($firstByteBinary, 4, 4)); $isMasked = ($secondByteBinary[0] == '1') ? true : false; $payloadLength = ord($data[1]) & 127; switch ($opcode) { // text frame: case 1: $decodedData['type'] = 'text'; break; case 2: $decodedData['type'] = 'binary'; break; // connection close frame: case 8: $decodedData['type'] = 'close'; break; // ping frame: case 9: $decodedData['type'] = 'ping'; break; // pong frame: case 10: $decodedData['type'] = 'pong'; break; default: return false; break; } if ($payloadLength === 126) { $mask = substr($data, 4, 4); $payloadOffset = 8; $dataLength = bindec(sprintf('%08b', ord($data[2])) . sprintf('%08b', ord($data[3]))) + $payloadOffset; } elseif ($payloadLength === 127) { $mask = substr($data, 10, 4); $payloadOffset = 14; $tmp = ''; for ($i = 0; $i < 8; $i++) { $tmp .= sprintf('%08b', ord($data[$i + 2])); } $dataLength = bindec($tmp) + $payloadOffset; unset($tmp); } else { $mask = substr($data, 2, 4); $payloadOffset = 6; $dataLength = $payloadLength + $payloadOffset; } if ($isMasked === true) { for ($i = $payloadOffset; $i < $dataLength; $i++) { $j = $i - $payloadOffset; if (isset($data[$i])) { $unmaskedPayload .= $data[$i] ^ $mask[$j % 4]; } } $decodedData['payload'] = $unmaskedPayload; } else { $payloadOffset = $payloadOffset - 4; $decodedData['payload'] = substr($data, $payloadOffset); } return $decodedData; } } /* $client = new WebSocketClient(); $client->connect($_SERVER['HTTP_HOST'], 8866, '/wss'); $rs = $client->sendData('你好啊 php'); echo $rs; $client->disconnect(); */
上面这个类适用php8以下版本。
故在github上找到了一个解决方案。
https://github.com/Textalk/websocket-php
composer require textalk/websocket
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