/// <summary> /// 解析连接请求信息 /// </summary> /// <param name="buffer">接收到的原始数量</param> /// <returns></returns> public static HttpRequest From(ReceiveBuffer buffer) { buffer.Position = 0; var bytes = buffer.ReadArray(); buffer.Clear(); return(HttpRequest.From(bytes, "ws")); }
public void ReadAndPositionTest() { ReceiveBuffer target = new ReceiveBuffer(); // TODO: 初始化为适当的值 var bytes = new byte[] { 1, 3, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 5, 255, 255, 255 }; target.Add(bytes, 0, bytes.Length); target.Position = 0; Assert.IsTrue(target.ReadBoolean() && target.Position == 1); Assert.IsTrue(target.ReadByte() == 3 && target.Position == 1 + 1); Assert.IsTrue(target.ReadInt16() == 1 && target.Position == 1 + 1 + 2); Assert.IsTrue(target.ReadInt32() == 1 && target.Position == 1 + 1 + 2 + 4); Assert.IsTrue(target.ReadInt64() == 5 && target.Position == 1 + 1 + 2 + 4 + 8); Assert.IsTrue(target.ReadArray(1)[0] == 255 && target.Position == 1 + 1 + 2 + 4 + 8 + 1); Assert.IsTrue(target.ReadArray().Length == 2 && target.Position == 1 + 1 + 2 + 4 + 8 + 1 + 2); }
/// <summary> /// 生成表单和文件 /// </summary> /// <param name="request"></param> /// <param name="buffer"></param> /// <param name="boundary">边界</param> private static void GenerateMultipartFormAndFiles(HttpRequest request, ReceiveBuffer buffer, string boundary) { var doubleCrlf = Encoding.ASCII.GetBytes("\r\n\r\n"); var boundaryBytes = Encoding.ASCII.GetBytes("\r\n--" + boundary); var maxPosition = buffer.Length - Encoding.ASCII.GetBytes("--\r\n").Length; var files = new List <HttpFile>(); var form = new HttpNameValueCollection(); buffer.Position = buffer.Position + boundaryBytes.Length; while (buffer.Position < maxPosition) { var headLength = buffer.IndexOf(doubleCrlf) + doubleCrlf.Length; if (headLength < doubleCrlf.Length) { break; } var head = buffer.ReadString(headLength, Encoding.UTF8); var bodyLength = buffer.IndexOf(boundaryBytes); if (bodyLength < 0) { break; } var mHead = new MultipartHead(head); if (mHead.IsFile == true) { var stream = buffer.ReadArray(bodyLength); var file = new HttpFile(mHead, stream); files.Add(file); } else { var value = HttpUtility.UrlDecode(buffer.ReadString(bodyLength, Encoding.UTF8)); form.Add(mHead.Name, value); } buffer.Position = buffer.Position + boundaryBytes.Length; } request.Form = form; request.Files = files.ToArray(); }
/// <summary> /// 解析连接请求信息 /// </summary> /// <param name="buffer">接收到的原始数量</param> /// <returns></returns> public static HttpRequest From(ReceiveBuffer buffer) { buffer.Position = 0; var bytes = buffer.ReadArray(); var request = HttpRequest.From(bytes, "http"); if (request == null) { return(null); } if (string.Equals(request.Method, "POST", StringComparison.OrdinalIgnoreCase)) { var contentLength = int.Parse(request["Content-Length"]); if (request.Body.Length < contentLength) { return(null); } } buffer.Clear(); return(request); }
/// <summary> /// 解析连接请求信息 /// </summary> /// <param name="buffer">接收到的原始数量</param> /// <param name="localEndpoint">服务器的本地终结点</param> /// <param name="remoteEndpoint">远程端的IP和端口</param> /// <returns></returns> public static HttpRequest From(ReceiveBuffer buffer, IPEndPoint localEndpoint, IPEndPoint remoteEndpoint) { buffer.Position = 0; var bytes = buffer.ReadArray(); var request = HttpRequest.From(bytes, localEndpoint, remoteEndpoint); if (request != null) { buffer.Clear(); } return request; }
/// <summary> /// 解析连接请求信息 /// </summary> /// <param name="buffer">接收到的原始数量</param> /// <returns></returns> public static HttpRequest From(ReceiveBuffer buffer) { buffer.Position = 0; var bytes = buffer.ReadArray(); buffer.Clear(); return HttpRequest.From(bytes, "ws"); }
/// <summary> /// 解析请求的数据 /// 返回请求数据包 /// </summary> /// <param name="buffer">所有收到的数据</param> /// <returns></returns> public unsafe static FrameRequest From(ReceiveBuffer buffer) { if (buffer.Length < 2) { return(null); } ByteBits byte0 = buffer[0]; var fin = byte0[0]; var frameCode = (FrameCodes)(byte)byte0.Take(4, 4); if (fin == false || frameCode == FrameCodes.Continuation) { return(null); } var rsv = byte0.Take(1, 3); ByteBits byte1 = buffer[1]; var mask = byte1[0]; if (mask == false || Enum.IsDefined(typeof(FrameCodes), frameCode) == false || rsv != 0) { return(null); } var contentLength = (int)byte1.Take(1, 7); buffer.Position = 2; if (contentLength == 127) { contentLength = (int)buffer.ReadUInt64(); } else if (contentLength == 126) { contentLength = (int)buffer.ReadUInt16(); } var packetLength = 6 + contentLength; if (buffer.Length < packetLength) { return(null); } var maskingKey = buffer.ReadArray(4); var content = buffer.ReadArray(contentLength); buffer.Clear(packetLength); if (contentLength > 0) { fixed(byte *pcontent = &content[0], pmask = &maskingKey[0]) { for (var i = 0; i < contentLength; i++) { *(pcontent + i) = (byte)(*(pcontent + i) ^ *(pmask + i % 4)); } } } return(new FrameRequest { Fin = fin, Rsv = rsv, Mask = mask, Frame = frameCode, ContentLength = contentLength, MaskingKey = maskingKey, Content = content }); }
/// <summary> /// 解析一个数据包 /// 不足一个封包时返回null /// </summary> /// <param name="buffer">接收到的历史数据</param> /// <exception cref="ProtocolException"></exception> /// <returns></returns> public static FastPacket From(ReceiveBuffer buffer) { if (buffer.Length < 4) { return(null); } buffer.Position = 0; var totalBytes = buffer.ReadInt32(); const int packegMaxSize = 10 * 1204 * 1024; // 10M if (totalBytes > packegMaxSize) { throw new ProtocolException(); } // 少于15字节是异常数据,清除收到的所有数据 const int packetMinSize = 15; if (totalBytes < packetMinSize) { throw new ProtocolException(); } // 数据包未接收完整 if (buffer.Length < totalBytes) { return(null); } // api名称数据长度 var apiNameLength = buffer.ReadByte(); if (totalBytes < apiNameLength + packetMinSize) { throw new ProtocolException(); } // api名称数据 var apiNameBytes = buffer.ReadArray(apiNameLength); // 标识符 var id = buffer.ReadInt64(); // 是否为客户端封包 var isFromClient = buffer.ReadBoolean(); // 是否异常 var isException = buffer.ReadBoolean(); // 实体数据 var body = buffer.ReadArray(totalBytes - buffer.Position); // 清空本条数据 buffer.Clear(totalBytes); var apiName = Encoding.UTF8.GetString(apiNameBytes); var packet = new FastPacket(apiName, id, isFromClient) { TotalBytes = totalBytes, ApiNameLength = apiNameLength, IsException = isException, Body = body }; return(packet); }
/// <summary> /// 解析请求的数据 /// 返回请求数据包 /// </summary> /// <param name="buffer">所有收到的数据</param> /// <returns></returns> public static unsafe FrameRequest From(ReceiveBuffer buffer) { if (buffer.Length < 2) { return null; } ByteBits byte0 = buffer[0]; var fin = byte0[0]; var frameCode = (FrameCodes)(byte)byte0.Take(4, 4); if (fin == false || frameCode == FrameCodes.Continuation) { return null; } var rsv = byte0.Take(1, 3); ByteBits byte1 = buffer[1]; var mask = byte1[0]; if (mask == false || Enum.IsDefined(typeof(FrameCodes), frameCode) == false || rsv != 0) { return null; } var contentLength = (int)byte1.Take(1, 7); buffer.Position = 2; if (contentLength == 127) { contentLength = (int)buffer.ReadUInt64(); } else if (contentLength == 126) { contentLength = (int)buffer.ReadUInt16(); } var packetLength = 6 + contentLength; if (buffer.Length < packetLength) { return null; } var maskingKey = buffer.ReadArray(4); var content = buffer.ReadArray(contentLength); buffer.Clear(packetLength); if (contentLength > 0) { fixed (byte* pcontent = &content[0], pmask = &maskingKey[0]) { for (var i = 0; i < contentLength; i++) { *(pcontent + i) = (byte)(*(pcontent + i) ^ *(pmask + i % 4)); } } } return new FrameRequest { Fin = fin, Rsv = rsv, Mask = mask, Frame = frameCode, ContentLength = contentLength, MaskingKey = maskingKey, Content = content }; }
/// <summary> /// 解析连接请求信息 /// 如果数据未完整则返回null /// </summary> /// <param name="buffer">接收到的原始数量</param> /// <param name="localEndpoint">服务器的本地终结点</param> /// <param name="remoteEndpoint">远程端的IP和端口</param> /// <exception cref="HttpException"></exception> /// <returns></returns> public static HttpRequest Parse(ReceiveBuffer buffer, IPEndPoint localEndpoint, IPEndPoint remoteEndpoint) { buffer.Position = 0; var doubleCrlf = Encoding.ASCII.GetBytes("\r\n\r\n"); var headerIndex = buffer.IndexOf(doubleCrlf); if (headerIndex < 0) { return(null); // 数据未完整 } var headerLength = headerIndex + doubleCrlf.Length; var headerString = buffer.ReadString(headerLength, Encoding.ASCII); const string pattern = @"^(?<method>[^\s]+)\s(?<path>[^\s]+)\sHTTP\/1\.1\r\n" + @"((?<field_name>[^:\r\n]+):\s(?<field_value>[^\r\n]*)\r\n)+" + @"\r\n"; var match = Regex.Match(headerString, pattern, RegexOptions.IgnoreCase); if (match.Success == false) { throw new HttpException(400, "请求中有语法问题,或不能满足请求"); } var httpMethod = GetHttpMethod(match.Groups["method"].Value); var httpHeader = new HttpHeader(match.Groups["field_name"].Captures, match.Groups["field_value"].Captures); var contentLength = httpHeader.TryGet <int>("Content-Length"); if (httpMethod == HttpMethod.POST && buffer.Length - headerLength < contentLength) { return(null); // 数据未完整 } var request = new HttpRequest { LocalEndPoint = localEndpoint, RemoteEndPoint = remoteEndpoint, HttpMethod = httpMethod, Headers = httpHeader }; request.Url = new Uri("http://localhost:" + localEndpoint.Port + match.Groups["path"].Value); request.Path = request.Url.AbsolutePath; request.Query = new HttpNameValueCollection(HttpUtility.UrlDecode(request.Url.Query.TrimStart('?'))); if (httpMethod == HttpMethod.GET) { request.InputStrem = new byte[0]; request.Form = new HttpNameValueCollection(); request.Files = new HttpFile[0]; } else { request.InputStrem = buffer.ReadArray(contentLength); buffer.Position = headerLength; HttpRequest.GeneratePostFormAndFiles(request, buffer); } buffer.Clear(headerLength + contentLength); return(request); }
/// <summary> /// 解析一个数据包 /// 不足一个封包时返回null /// </summary> /// <param name="buffer">接收到的历史数据</param> /// <exception cref="ProtocolException"></exception> /// <returns></returns> public static FastPacket From(ReceiveBuffer buffer) { if (buffer.Length < 4) { return null; } buffer.Position = 0; var totalBytes = buffer.ReadInt32(); const int packegMaxSize = 10 * 1204 * 1024; // 10M if (totalBytes > packegMaxSize) { throw new ProtocolException(); } // 少于15字节是异常数据,清除收到的所有数据 const int packetMinSize = 15; if (totalBytes < packetMinSize) { throw new ProtocolException(); } // 数据包未接收完整 if (buffer.Length < totalBytes) { return null; } // api名称数据长度 var apiNameLength = buffer.ReadByte(); if (totalBytes < apiNameLength + packetMinSize) { throw new ProtocolException(); } // api名称数据 var apiNameBytes = buffer.ReadArray(apiNameLength); // 标识符 var id = buffer.ReadInt64(); // 是否为客户端封包 var isFromClient = buffer.ReadBoolean(); // 是否异常 var isException = buffer.ReadBoolean(); // 实体数据 var body = buffer.ReadArray(totalBytes - buffer.Position); // 清空本条数据 buffer.Clear(totalBytes); var apiName = Encoding.UTF8.GetString(apiNameBytes); var packet = new FastPacket(apiName, id, isFromClient) { TotalBytes = totalBytes, ApiNameLength = apiNameLength, IsException = isException, Body = body }; return packet; }
/// <summary> /// 生成表单和文件 /// </summary> /// <param name="request"></param> /// <param name="buffer"></param> /// <param name="boundary">边界</param> private static void GenerateMultipartFormAndFiles(HttpRequest request, ReceiveBuffer buffer, string boundary) { var doubleCrlf = Encoding.ASCII.GetBytes("\r\n\r\n"); var boundaryBytes = Encoding.ASCII.GetBytes("\r\n--" + boundary); var maxPosition = buffer.Length - Encoding.ASCII.GetBytes("--\r\n").Length; var files = new List<HttpFile>(); var form = new HttpNameValueCollection(); buffer.Position = buffer.Position + boundaryBytes.Length; while (buffer.Position < maxPosition) { var headLength = buffer.IndexOf(doubleCrlf) + doubleCrlf.Length; if (headLength < doubleCrlf.Length) { break; } var head = buffer.ReadString(headLength, Encoding.UTF8); var bodyLength = buffer.IndexOf(boundaryBytes); if (bodyLength < 0) { break; } var mHead = new MultipartHead(head); if (mHead.IsFile == true) { var stream = buffer.ReadArray(bodyLength); var file = new HttpFile(mHead, stream); files.Add(file); } else { var value = HttpUtility.UrlDecode(buffer.ReadString(bodyLength, Encoding.UTF8)); form.Add(mHead.Name, value); } buffer.Position = buffer.Position + boundaryBytes.Length; } request.Form = form; request.Files = files.ToArray(); }
/// <summary> /// 解析连接请求信息 /// 如果数据未完整则返回null /// </summary> /// <param name="buffer">接收到的原始数量</param> /// <param name="localEndpoint">服务器的本地终结点</param> /// <param name="remoteEndpoint">远程端的IP和端口</param> /// <exception cref="HttpException"></exception> /// <returns></returns> public static HttpRequest Parse(ReceiveBuffer buffer, IPEndPoint localEndpoint, IPEndPoint remoteEndpoint) { buffer.Position = 0; var doubleCrlf = Encoding.ASCII.GetBytes("\r\n\r\n"); var headerIndex = buffer.IndexOf(doubleCrlf); if (headerIndex < 0) { return null; // 数据未完整 } var headerLength = headerIndex + doubleCrlf.Length; var headerString = buffer.ReadString(headerLength, Encoding.ASCII); const string pattern = @"^(?<method>[^\s]+)\s(?<path>[^\s]+)\sHTTP\/1\.1\r\n" + @"((?<field_name>[^:\r\n]+):\s(?<field_value>[^\r\n]*)\r\n)+" + @"\r\n"; var match = Regex.Match(headerString, pattern, RegexOptions.IgnoreCase); if (match.Success == false) { throw new HttpException(400, "请求中有语法问题,或不能满足请求"); } var httpMethod = GetHttpMethod(match.Groups["method"].Value); var httpHeader = new HttpHeader(match.Groups["field_name"].Captures, match.Groups["field_value"].Captures); var contentLength = httpHeader.TryGet<int>("Content-Length"); if (httpMethod == HttpMethod.POST && buffer.Length - headerLength < contentLength) { return null; // 数据未完整 } var request = new HttpRequest { LocalEndPoint = localEndpoint, RemoteEndPoint = remoteEndpoint, HttpMethod = httpMethod, Headers = httpHeader }; request.Url = new Uri("http://localhost:" + localEndpoint.Port + match.Groups["path"].Value); request.Path = request.Url.AbsolutePath; request.Query = new HttpNameValueCollection(HttpUtility.UrlDecode(request.Url.Query.TrimStart('?'))); if (httpMethod == HttpMethod.GET) { request.InputStrem = new byte[0]; request.Form = new HttpNameValueCollection(); request.Files = new HttpFile[0]; } else { request.InputStrem = buffer.ReadArray(contentLength); buffer.Position = headerLength; HttpRequest.GeneratePostFormAndFiles(request, buffer); } buffer.Clear(headerLength + contentLength); return request; }