/**
* Check the integrity of the package.
*
* @param string $recv_buffer
* @param TcpConnection $connection
* @return int
*/
public static function input($recv_buffer, TcpConnection $connection)
{
if (!strpos($recv_buffer, "\r\n\r\n")) {
// Judge whether the package length exceeds the limit.
if (strlen($recv_buffer) >= TcpConnection::$maxPackageSize) {
$connection->close();
return 0;
}
return 0;
}
list($header, ) = explode("\r\n\r\n", $recv_buffer, 2);
if (0 === strpos($recv_buffer, "POST")) {
// find Content-Length
$match = array();
if (preg_match("/\r\nContent-Length: ?(\\d+)/i", $header, $match)) {
$content_length = $match[1];
return $content_length + strlen($header) + 4;
} else {
return 0;
}
} elseif (0 === strpos($recv_buffer, "GET")) {
return strlen($header) + 4;
} else {
$connection->send("HTTP/1.1 400 Bad Request\r\n\r\n", true);
return 0;
}
}
/**
* Check the integrity of the package.
*
* @param string $buffer
* @param TcpConnection $connection
* @return int
*/
public static function input($buffer, TcpConnection $connection)
{
// Judge whether the package length exceeds the limit.
if (strlen($buffer) >= TcpConnection::$maxPackageSize) {
$connection->close();
return 0;
}
// Find the position of "\n".
$pos = strpos($buffer, "\n");
// No "\n", packet length is unknown, continue to wait for the data so return 0.
if ($pos === false) {
return 0;
}
// Return the current package length.
return $pos + 1;
}
/**
* 检查包的完整性
* 如果能够得到包长，则返回包的长度，否则返回0继续等待数据
* @param string $buffer
*/
public static function input($buffer, TcpConnection $connection)
{
// 由于没有包头，无法预先知道包长，不能无限制的接收数据，
// 所以需要判断当前接收的数据是否超过限定值
if (strlen($buffer) >= TcpConnection::$maxPackageSize) {
$connection->close();
return 0;
}
// 获得换行字符"\n"位置
$pos = strpos($buffer, "\n");
// 没有换行符，无法得知包长，返回0继续等待数据
if ($pos === false) {
return 0;
}
// 有换行符，返回当前包长，包含换行符
return $pos + 1;
}
/**
* 判断包长
* @param string $recv_buffer
* @param TcpConnection $connection
* @return int
*/
public static function input($recv_buffer, TcpConnection $connection)
{
if (!strpos($recv_buffer, "\r\n\r\n")) {
// 无法获得包长，避免客户端传递超大头部的数据包
if (strlen($recv_buffer) >= TcpConnection::$maxPackageSize) {
$connection->close();
return 0;
}
return 0;
}
list($header, $body) = explode("\r\n\r\n", $recv_buffer, 2);
if (0 === strpos($recv_buffer, "POST")) {
// find Content-Length
$match = array();
if (preg_match("/\r\nContent-Length: ?(\\d+)/", $header, $match)) {
$content_lenght = $match[1];
return $content_lenght + strlen($header) + 4;
} else {
return 0;
}
} else {
return strlen($header) + 4;
}
}
/**
* Emit when http message coming.
*
* @param Connection\TcpConnection $connection
* @return void
*/
public function onMessage($connection)
{
// REQUEST_URI.
$workerman_url_info = parse_url($_SERVER['REQUEST_URI']);
if (!$workerman_url_info) {
Http::header('HTTP/1.1 400 Bad Request');
$connection->close('<h1>400 Bad Request</h1>');
return;
}
$workerman_path = isset($workerman_url_info['path']) ? $workerman_url_info['path'] : '/';
$workerman_path_info = pathinfo($workerman_path);
$workerman_file_extension = isset($workerman_path_info['extension']) ? $workerman_path_info['extension'] : '';
if ($workerman_file_extension === '') {
$workerman_path = ($len = strlen($workerman_path)) && $workerman_path[$len - 1] === '/' ? $workerman_path . 'index.php' : $workerman_path . '/index.php';
$workerman_file_extension = 'php';
}
$workerman_root_dir = isset($this->serverRoot[$_SERVER['SERVER_NAME']]) ? $this->serverRoot[$_SERVER['SERVER_NAME']] : current($this->serverRoot);
$workerman_file = "{$workerman_root_dir}/{$workerman_path}";
if ($workerman_file_extension === 'php' && !is_file($workerman_file)) {
$workerman_file = "{$workerman_root_dir}/index.php";
if (!is_file($workerman_file)) {
$workerman_file = "{$workerman_root_dir}/index.html";
$workerman_file_extension = 'html';
}
}
// File exsits.
if (is_file($workerman_file)) {
// Security check.
if (!($workerman_request_realpath = realpath($workerman_file)) || !($workerman_root_dir_realpath = realpath($workerman_root_dir)) || 0 !== strpos($workerman_request_realpath, $workerman_root_dir_realpath)) {
Http::header('HTTP/1.1 400 Bad Request');
$connection->close('<h1>400 Bad Request</h1>');
return;
}
$workerman_file = realpath($workerman_file);
// Request php file.
if ($workerman_file_extension === 'php') {
$workerman_cwd = getcwd();
chdir($workerman_root_dir);
ini_set('display_errors', 'off');
ob_start();
// Try to include php file.
try {
// $_SERVER.
$_SERVER['REMOTE_ADDR'] = $connection->getRemoteIp();
$_SERVER['REMOTE_PORT'] = $connection->getRemotePort();
include $workerman_file;
} catch (\Exception $e) {
// Jump_exit?
if ($e->getMessage() != 'jump_exit') {
echo $e;
}
}
$content = ob_get_clean();
ini_set('display_errors', 'on');
if (strtolower($_SERVER['HTTP_CONNECTION']) === "keep-alive") {
$connection->send($content);
} else {
$connection->close($content);
}
chdir($workerman_cwd);
return;
}
// Send file to client.
return self::sendFile($connection, $workerman_file);
} else {
// 404
Http::header("HTTP/1.1 404 Not Found");
$connection->close('<html><head><title>404 File not found</title></head><body><center><h3>404 Not Found</h3></center></body></html>');
return;
}
}
/**
* Websocket handshake.
*
* @param string $buffer
* @param \Workerman\Connection\TcpConnection $connection
* @return int
*/
protected static function dealHandshake($buffer, $connection)
{
// HTTP protocol.
if (0 === strpos($buffer, 'GET')) {
// Find \r\n\r\n.
$heder_end_pos = strpos($buffer, "\r\n\r\n");
if (!$heder_end_pos) {
return 0;
}
$header_length = $heder_end_pos + 4;
// Get Sec-WebSocket-Key.
$Sec_WebSocket_Key = '';
if (preg_match("/Sec-WebSocket-Key: *(.*?)\r\n/i", $buffer, $match)) {
$Sec_WebSocket_Key = $match[1];
} else {
$connection->send("HTTP/1.1 400 Bad Request\r\n\r\n<b>400 Bad Request</b><br>Sec-WebSocket-Key not found.<br>This is a WebSocket service and can not be accessed via HTTP.", true);
$connection->close();
return 0;
}
// Calculation websocket key.
$new_key = base64_encode(sha1($Sec_WebSocket_Key . "258EAFA5-E914-47DA-95CA-C5AB0DC85B11", true));
// Handshake response data.
$handshake_message = "HTTP/1.1 101 Switching Protocols\r\n";
$handshake_message .= "Upgrade: websocket\r\n";
$handshake_message .= "Sec-WebSocket-Version: 13\r\n";
$handshake_message .= "Connection: Upgrade\r\n";
$handshake_message .= "Server: workerman/" . Worker::VERSION . "\r\n";
$handshake_message .= "Sec-WebSocket-Accept: " . $new_key . "\r\n\r\n";
// Mark handshake complete..
$connection->websocketHandshake = true;
// Websocket data buffer.
$connection->websocketDataBuffer = '';
// Current websocket frame length.
$connection->websocketCurrentFrameLength = 0;
// Current websocket frame data.
$connection->websocketCurrentFrameBuffer = '';
// Consume handshake data.
$connection->consumeRecvBuffer($header_length);
// Send handshake response.
$connection->send($handshake_message, true);
// There are data waiting to be sent.
if (!empty($connection->tmpWebsocketData)) {
$connection->send($connection->tmpWebsocketData, true);
$connection->tmpWebsocketData = '';
}
// blob or arraybuffer
if (empty($connection->websocketType)) {
$connection->websocketType = self::BINARY_TYPE_BLOB;
}
// Try to emit onWebSocketConnect callback.
if (isset($connection->onWebSocketConnect)) {
self::parseHttpHeader($buffer);
try {
call_user_func($connection->onWebSocketConnect, $connection, $buffer);
} catch (\Exception $e) {
Worker::log($e);
exit(250);
} catch (\Error $e) {
Worker::log($e);
exit(250);
}
if (!empty($_SESSION) && class_exists('\\GatewayWorker\\Lib\\Context')) {
$connection->session = \GatewayWorker\Lib\Context::sessionEncode($_SESSION);
}
$_GET = $_SERVER = $_SESSION = $_COOKIE = array();
}
if (strlen($buffer) > $header_length) {
return self::input(substr($buffer, $header_length), $connection);
}
return 0;
} elseif (0 === strpos($buffer, '<polic')) {
$policy_xml = '<?xml version="1.0"?><cross-domain-policy><site-control permitted-cross-domain-policies="all"/><allow-access-from domain="*" to-ports="*"/></cross-domain-policy>' . "";
$connection->send($policy_xml, true);
$connection->consumeRecvBuffer(strlen($buffer));
return 0;
}
// Bad websocket handshake request.
$connection->send("HTTP/1.1 400 Bad Request\r\n\r\n<b>400 Bad Request</b><br>Invalid handshake data for websocket. ", true);
$connection->close();
return 0;
}
/**
* 覆盖原workerman流程，实现更多功能
* 当接收到完整的http请求后的处理逻辑
*
* 1、如果请求的是以php为后缀的文件，则尝试加载
* 2、如果请求的url没有后缀，则尝试加载对应目录的index.php
* 3、如果请求的是非php为后缀的文件，尝试读取原始数据并发送
* 4、如果请求的文件不存在，则返回404
*
* @param TcpConnection $connection
* @param mixed $data
* @return mixed
*/
public function onMessage($connection, $data)
{
Base::getLog()->debug(__METHOD__ . ' receive http request', ['uri' => $_SERVER['REQUEST_URI'], 'ip' => $connection->getRemoteIp(), 'port' => $connection->getRemotePort(), 'data' => $data]);
// 请求的文件
$urlInfo = parse_url($_SERVER['REQUEST_URI']);
if (!$urlInfo) {
Base::getHttp()->header('HTTP/1.1 400 Bad Request');
Base::getLog()->warning(__METHOD__ . ' receive bad request', ['uri' => $_SERVER['REQUEST_URI'], 'ip' => $connection->getRemoteIp(), 'port' => $connection->getRemotePort()]);
return $connection->close($this->error400);
}
$path = $urlInfo['path'];
$pathInfo = pathinfo($path);
$extension = isset($pathInfo['extension']) ? $pathInfo['extension'] : '';
if ($extension === '') {
$path = ($len = strlen($path)) && $path[$len - 1] === '/' ? $path . $this->indexFile : $path . '/' . $this->indexFile;
$extension = 'php';
}
$serverName = Arr::get($_SERVER, 'SERVER_NAME');
$rootDir = isset($this->serverRoot[$serverName]) ? $this->serverRoot[$serverName] : current($this->serverRoot);
$file = "{$rootDir}/{$path}";
// 对应的php文件不存在，而且支持rewrite
if (!is_file($file) && $this->rewrite) {
$file = is_string($this->rewrite) ? $rootDir . '/' . $this->rewrite : $rootDir . '/' . $this->indexFile;
$extension = 'php';
$_SERVER['PATH_INFO'] = $_SERVER['REQUEST_URI'];
}
// 请求的文件存在
if (is_file($file)) {
Base::getLog()->debug(__METHOD__ . ' request file existed', ['file' => $file, 'extension' => $extension]);
// 判断是否是站点目录里的文件
if (!($requestRealPath = realpath($file)) || !($rootDirRealPath = realpath($rootDir)) || 0 !== strpos($requestRealPath, $rootDirRealPath)) {
Base::getHttp()->header('HTTP/1.1 400 Bad Request');
Base::getLog()->warning(__METHOD__ . ' receive bad request', ['uri' => $_SERVER['REQUEST_URI'], 'ip' => $connection->getRemoteIp(), 'port' => $connection->getRemotePort()]);
return $connection->close('<h1>400 Bad Request</h1>');
}
$file = realpath($file);
// 如果请求的是php文件
// PHP文件需要include
if ($extension === 'php') {
Base::getLog()->debug(__METHOD__ . ' handle request', ['uri' => $_SERVER['REQUEST_URI'], 'ip' => $connection->getRemoteIp(), 'port' => $connection->getRemotePort(), 'file' => $file]);
Base::getLog()->debug(__METHOD__ . ' clean components - start');
Base::cleanComponents();
Base::getLog()->debug(__METHOD__ . ' clean components - end');
$cwd = getcwd();
chdir($rootDir);
ini_set('display_errors', 'off');
// 缓冲输出
ob_start();
// 载入php文件
try {
// $_SERVER变量
$_SERVER['HOME'] = $_SERVER['DOCUMENT_ROOT'] = dirname($file);
$_SERVER['SCRIPT_FILENAME'] = $file;
Base::getLog()->debug(__METHOD__ . ' dispatch client info', ['ip' => $_SERVER['REMOTE_ADDR'], 'port' => $_SERVER['REMOTE_PORT']]);
include $file;
} catch (Exception $e) {
Base::getLog()->error($e->getMessage(), ['code' => $e->getCode(), 'file' => $e->getFile(), 'line' => $e->getLine()]);
// 如果不是exit
if ($e->getMessage() != 'jump_exit') {
echo $e;
}
}
Patch::applyShutdownFunction();
$content = ob_get_clean();
ini_set('display_errors', 'on');
$result = $connection->close($content);
chdir($cwd);
return $result;
} else {
$contentType = Mime::getMimeFromExtension($extension, self::$defaultMimeType);
Base::getLog()->debug(__METHOD__ . ' get static file content type', ['extension' => $extension, 'contentType' => $contentType]);
Base::getHttp()->header('Content-Type: ' . $contentType);
// 获取文件信息
$info = stat($file);
$modifiedTime = $info ? date('D, d M Y H:i:s', Arr::get($info, 'mtime')) . ' GMT' : '';
// 如果有$_SERVER['HTTP_IF_MODIFIED_SINCE']
if (!empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) && $info) {
// 文件没有更改则直接304
if ($modifiedTime === $_SERVER['HTTP_IF_MODIFIED_SINCE']) {
Base::getLog()->debug(__METHOD__ . ' no modified, return 304');
// 304
Base::getHttp()->header('HTTP/1.1 304 Not Modified');
// 发送给客户端
return $connection->close('');
}
}
if ($modifiedTime) {
Base::getLog()->debug(__METHOD__ . ' set last modified time', ['time' => $modifiedTime]);
Base::getHttp()->header("Last-Modified: {$modifiedTime}");
}
// 发送给客户端
return $connection->close(file_get_contents($file));
}
} else {
Base::getLog()->warning(__METHOD__ . ' requested file not found', ['file' => $file]);
// 404
Base::getHttp()->header("HTTP/1.1 404 Not Found");
return $connection->close($this->error404);
}
}
/**
* 判断数据包长度
* @param string $buffer
* @return int
*/
public static function input($buffer, TcpConnection $connection)
{
// 数据包总长度
$bufferlenght = strlen($buffer);
// 防止用户传输不符合协议的超大数据包(10M)
if ($bufferlenght >= TcpConnection::$maxPackageSize) {
$connection->close();
return 0;
}
// '+'开头,数据包大于4位
if ($bufferlenght >= 4) {
// 第一次出现'++HC'位置
$headsignall = strpos($buffer, '++HC');
if ($headsignall === 0 && $bufferlenght >= 8) {
return self::regmessage($buffer, $bufferlenght, 0);
}
// 没有找到协议头
if ($headsignall === false) {
return self::findhead($buffer, $bufferlenght);
}
// 协议头前面数据
if ($headsignall) {
return $headsignall;
}
}
return 0;
}
