接收发送HTTP报文

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Collections;
using System.IO;
using System.Text.Regularexpressions;
using RE = System.Text.Regularexpressions.Regex;
using System.Security.Cryptography.X509Certificates;

namespace HTTP
{
    ///

    ///上传事件委托
    ///

    ///
    ///
    public delegate void WebClientUploadEvent（object sender HTTP.UploadEventArgs e）;

    ///

    ///下载事件委托
    ///

    ///
    ///
    public delegate void WebClientDownloadEvent（object sender HTTP.DownloadEventArgs e）;


    ///

    ///上传事件参数
    ///

    public struct UploadEventArgs
    {
        ///

        ///上传数据总大小
        ///

        public long totalBytes;
        ///

        ///已发数据大小
        ///

        public long bytesSent;
        ///

        ///发送进度（0-1）
        ///

        public double sendProgress;
        ///

        ///发送速度Bytes/s
        ///

        public double sendSpeed;
    }

    ///

    ///下载事件参数
    ///

    public struct DownloadEventArgs
    {
        ///

        ///下载数据总大小
        ///

        public long totalBytes;
        ///

        ///已接收数据大小
        ///

        public long bytesReceived;
        ///

        ///接收数据进度（0-1）
        ///

        public double ReceiveProgress;
        ///

        ///当前缓冲区数据
        ///

        public byte[] receivedBuffer;
        ///

        ///接收速度Bytes/s
        ///

        public double receiveSpeed;
    }
    ///

    ///实现向WEB服务器发送和接收数据
    ///

    public class WebClient
    {
        private WebHeaderCollection requestHeaders responseHeaders;
        private TcpClient clientSocket;
        private MemoryStream postStream;
        private Encoding encoding = Encoding.Default;
        private const string BOUNDARY = “--HEDAODE--“;
        private const int SEND_BUFFER_SIZE = 10245;
        private const int RECEIVE_BUFFER_SIZE = 10245;
        private string cookie = ““;
        private string respHtml = ““;
        private string strRequestHeaders = ““;
        private string strResponseHeaders = ““;
        private int statusCode = 0;
        private bool isCanceled = false;
        public event WebClientUploadEvent UploadProgressChanged;
        public event WebClientDownloadEvent DownloadProgressChanged;

        ///

        ///初始化WebClient类
        ///

        public WebClient（）
        {
            responseHeaders = new WebHeaderCollection（）;
            requestHeaders = new WebHeaderCollection（）;
        }