C# 如何计算HttpWebRequest花费的出站和入站internet流量

我有下面的函数来获取页面。我的问题是我想计算一下上网的费用

入站（下载）和出站流量（已发送）

我该怎么做？多谢各位

我的职能

 public static string func_fetch_Page(string srUrl, int irTimeOut = 60,
    string srRequestUserAgent = "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0",
    string srProxy = null)
    {
        string srBody = "";
        string srResult = "";
        try
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(srUrl);

            request.Timeout = irTimeOut * 1000;
            request.UserAgent = srRequestUserAgent;
            request.KeepAlive = true;
            request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";

            WebHeaderCollection myWebHeaderCollection = request.Headers;
            myWebHeaderCollection.Add("Accept-Language", "en-gb,en;q=0.5");
            myWebHeaderCollection.Add("Accept-Encoding", "gzip, deflate");

            request.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;

            using (WebResponse response = request.GetResponse())
            {
                using (Stream strumien = response.GetResponseStream())
                {
                    using (StreamReader sr = new StreamReader(strumien))
                    {
                        srBody = sr.ReadToEnd();
                        srResult = "success";
                    }
                }
            }
        }
        catch ()
        {

        }

        return srBody;
    }

C#.net 4.5 WPF应用程序

@Simon Mourier我如何计算花费的流量

public static long long_GlobalDownload_KByte = 0;
public static long long_GlobalSent_KByte = 0;

Time  _timer_fetch_download_upload = new Timer(getDownload_Upload_Values, null, 0, 100 * 1000);

public static void getDownload_Upload_Values(Object state)
{
    using (Process p = Process.GetCurrentProcess())
    {
        foreach (var cnx in TcpConnection.GetAll().Where(c => c.ProcessId == p.Id))
        {
            Interlocked.Add(ref long_GlobalDownload_KByte, Convert.ToInt64(cnx.DataBytesIn));
            Interlocked.Add(ref long_GlobalSent_KByte, Convert.ToInt64(cnx.DataBytesOut));
        }
    }
}

由于某些不可预测的以太网通信量等原因，很难确切知道发生了多少网络通信量，但本质上任何HTTP请求的要点都是：

method request-uri version
* (header : value)
CRLF
body

因此，您可以计算出请求字符串的长度：

HttpWebRequest req = ...;
StringBuilder requestText = new StringBuilder();

requestText.AppendFormat("{0} {1} HTTP/{2}.{3}", req.Method, req.RequestUri, req.ProtocolVersion.Major, req.ProtocolVersion.Minor);

requestText.AppendLine();

foreach (var header in req.Headers)
{
    requestText.AppendFormat("{0}: {1}", v, webReq.Headers[v]);
    requestText.AppendLine();
}

requestText.AppendLine();

// somehow add on the contents of the request stream, or just add that length later. I won't put that in this code because of stream positioning and all that

return System.Text.Encoding.UTF8.GetByteCount(requestText.ToString());

那么，对于响应端来说，情况就非常相似了。HTTP响应的格式为：

version status-code status-description
* (header : value)
CRLF
body

所以

在这里，有一点决定要做。您需要获得响应主体的长度。可能有更多的选择，但我现在想的是你可以：

编写一个

流

包装器，获取复制的字节数。这样，您就不必担心分块传输，编写代码也会很有趣

使用

content-length

标题，尽管如果没有该标题，您将无法获得它，就像

传输编码：chunked

一样

使用您想要的任何方法读取流，然后在中添加该流的长度

将流复制到

内存流

，然后将其作为新响应流传递，同时在途中获取长度

综上所述，您在担心内容压缩时会有额外的挫败感。事实上，我看到你在自己的作品中使用了它。考虑到简单性，我将假设GZip并使用第四个选项。你可能想对我在这里写的内容进行扩展，使之更全面一点

// webReq.AutomaticDecompression = DecompressionMethods.None; is required for this, since we're handling that decompression ourselves.

using (var respStream = resp.GetResponseStream())
using (var memStream = new MemoryStream())
{
    respStream.CopyTo(memStream);

    using (var gzip = new System.IO.Compression.GZipStream(respStream, System.IO.Compression.CompressionMode.Decompress))
    using (var reader = new StreamReader(gzip))
    {
        var content = reader.ReadToEnd();

        // you may or may not actually care about this, depending on whether this is just light testing or if you'll actually have these metrics in production
    }

    return System.Text.Encoding.UTF8.GetByteCount(responseText.ToString()) + memStream.Length;
}

现在，我看到了一些注意事项。其他人可能会注意到更多，如果有人发表评论，我会将他们添加进来

• 正如我在本文开头提到的，一个请求的网络流量可能比它告诉您的要多
• 根据客户机和服务器的不同，您可能会发现实际的头可以用不同数量的空格列出。我不认为这超出了HTTP规范，即使是这样，人们也会这么做。因此，有可能，例如，您会看到一个服务器集

  内容类型：text/html

  和另一个集

  内容类型：text/html

  。因为我们使用UTF-8，所以至少有一个字节的差异。同样，很少，但这是一个可能的差异

这只是一个估计。这是一个很好的估计，但只是一个估计

如果您希望以简单为代价获得更高的准确性，您也可以为自己编写一个代理。HTTP代理的思想是它只获取逐字请求，因此获取长度“非常容易”。当然，最大的问题是，您必须编写一个功能齐全的代理，它很可能解析并重新请求传入的请求，解析并转发它们各自的响应。当然是可行的，但这不是小事。特别是当您不得不担心SSL时

当然，在最基本的层面上，你可以编写一个替代WireShark的程序。我不知道怎么做，除非你真的需要，否则我不建议你麻烦。那也不会给你一个完美的主意。就在附近

现在，所有这些都说了，男孩，这是相当多的说，如果你这样做的目的是分析，有一个很好的机会，内置到VisualStudio的工具将允许你这样做。诚然，我对它们的了解还远远不够——我甚至从未打开过它们——但我相信有可用的网络流量分析器。当然，我怀疑他们会在这样的平台上工作。但这肯定是一个更容易的方法

---

此外，如果有人碰巧注意到这里有任何打字错误，我确实复制粘贴了几次，我想我都得到了，但请随时通知我或修复它们。

如果您的客户端应用程序正在与已知的IIS服务器通信，那么我会尝试从IIS日志中获取这些数据。检查cs字节（客户端到服务器字节，又称请求字节）和sc字节（服务器到客户端字节，又称响应字节）

一个Windows API可以为您提供以下信息：用于IPV4连接和相关IPV6 GetPertCP6ConnectionStats函数。请注意，您需要使用之前才能获得任何统计，这通常需要管理员权限

要获取所有连接的列表，可以使用函数。它还可以为您提供非常有用的连接进程id

这些都是本机API，不太容易使用，但我创建了一个TcpConnection类来封装所有这些。可在一个名为IPStats的小型WPF应用程序中获得：

因此，这里的困难在于从连接列表中将.NET HttpWebRequest链接到TcpConnection。 在连接存在之前，您无法获取任何stat，但是一旦创建了连接，您就可以使用如下代码获取相应的stat：

    static IEnumerable<TcpConnection> GetProcessConnection(IPEndPoint ep)
    {
        var p = Process.GetCurrentProcess();
        return TcpConnection.GetAll().Where(c => ep.Equals(c.RemoteEndPoint) && c.ProcessId == p.Id);
    }

    HttpWebRequest req = ...

    // this is how you can get the enpoint, or you can also built it by yourself manually
    IPEndPoint remoteEndPoint;
    req.ServicePoint.BindIPEndPointDelegate += (sp, rp, rc) =>
        {
            remoteEndPoint = rp;
            return null;
        };
    // TODO: here, you need to connect, so the connection exists
    var cnx = GetProcessConnection(remoteEndPoint).FirstOrDefault();

    // access denied here means you don't have sufficient rights
    cnx.DataStatsEnabled = true;

    // TODO: here, you need to do another request, so the values are incremented
    // now, you should get non-zero values here
    // note TcpConnection also has int/out bandwidth usage, and in/out packet usage.
    Console.WriteLine("DataBytesIn:" + cnx.DataBytesIn);
    Console.WriteLine("DataBytesOut:" + cnx.DataBytesOut);

    // if you need all connections in the current process, just do this
    ulong totalBytesIn = 0;
    ulong totalBytesOut = 0;
    Process p = Process.GetCurrentProcess();
    foreach (var cnx in TcpConnection.GetAll().Where(c => c.ProcessId == p.Id))
    {
        totalBytesIn += cnx.DataBytesIn;
        totalBytesOut += cnx.DataBytesOut;
    }

静态IEnumerable GetProcessConnection（IPEndPoint ep）
{
var p=Process.GetCurrentProcess（）；
返回TcpConnection.GetAll（），其中（c=>ep.Equals（c.RemoteEndPoint）和&c.ProcessId==p.Id）；
}
HttpWebRequest请求=。。。
//这是您获取enpoint的方式，或者您也可以自己手动构建它
IPEndPoint远程端点；
req.ServicePoint.BindIPEndPointDelegate+=（sp、rp、rc）=>
{
remoteEndPoint=rp；
返回null；
};
//TODO:在这里，您需要连接，因此连接存在
var cnx=GetProcessConnection（remoteEndPoint）.FirstOrDefault（）；
//此处拒绝访问表示您没有足够的权限
cnx.DataStatsEnabled=true；
//TODO:在这里，您需要执行另一个请求，因此值会递增
//现在，你应该
    static IEnumerable<TcpConnection> GetProcessConnection(IPEndPoint ep)
    {
        var p = Process.GetCurrentProcess();
        return TcpConnection.GetAll().Where(c => ep.Equals(c.RemoteEndPoint) && c.ProcessId == p.Id);
    }

    HttpWebRequest req = ...

    // this is how you can get the enpoint, or you can also built it by yourself manually
    IPEndPoint remoteEndPoint;
    req.ServicePoint.BindIPEndPointDelegate += (sp, rp, rc) =>
        {
            remoteEndPoint = rp;
            return null;
        };
    // TODO: here, you need to connect, so the connection exists
    var cnx = GetProcessConnection(remoteEndPoint).FirstOrDefault();

    // access denied here means you don't have sufficient rights
    cnx.DataStatsEnabled = true;

    // TODO: here, you need to do another request, so the values are incremented
    // now, you should get non-zero values here
    // note TcpConnection also has int/out bandwidth usage, and in/out packet usage.
    Console.WriteLine("DataBytesIn:" + cnx.DataBytesIn);
    Console.WriteLine("DataBytesOut:" + cnx.DataBytesOut);

    // if you need all connections in the current process, just do this
    ulong totalBytesIn = 0;
    ulong totalBytesOut = 0;
    Process p = Process.GetCurrentProcess();
    foreach (var cnx in TcpConnection.GetAll().Where(c => c.ProcessId == p.Id))
    {
        totalBytesIn += cnx.DataBytesIn;
        totalBytesOut += cnx.DataBytesOut;
    }

class Program
{
    static void Main(string[] args)
    {
        ProcessTcpConnections p = new ProcessTcpConnections(Process.GetCurrentProcess().Id);
        Timer timer = new Timer(UpdateStats, p, 0, 100);

        do
        {
            // let's activate the network so we measure something...
            using (WebClient client = new WebClient())
            {
                client.DownloadString("http://www.example.com");
            }
            Console.ReadKey(true); // press any key to download again
        }
        while (true);
    }

    private static void UpdateStats(object state)
    {
        ProcessTcpConnections p = (ProcessTcpConnections)state;
        p.Update();
        Console.WriteLine("DataBytesIn:" + p.DataBytesIn + " DataBytesOut:" + p.DataBytesOut);
    }
}

public class ProcessTcpConnections : TcpConnectionGroup
{
    public ProcessTcpConnections(int processId)
        : base(c => c.ProcessId == processId)
    {
        ProcessId = processId;
    }

    public int ProcessId { get; private set; }
}

public class TcpConnectionGroup
{
    private List<TcpConnectionStats> _states = new List<TcpConnectionStats>();
    private Func<TcpConnection, bool> _groupFunc;

    public TcpConnectionGroup(Func<TcpConnection, bool> groupFunc)
    {
        if (groupFunc == null)
            throw new ArgumentNullException("groupFunc");

        _groupFunc = groupFunc;
    }

    public void Update()
    {
        foreach (var conn in TcpConnection.GetAll().Where(_groupFunc))
        {
            if (!conn.DataStatsEnabled)
            {
                conn.DataStatsEnabled = true;
            }

            TcpConnectionStats existing = _states.Find(s => s.Equals(conn));
            if (existing == null)
            {
                existing = new TcpConnectionStats();
                _states.Add(existing);
            }
            existing.DataBytesIn = conn.DataBytesIn;
            existing.DataBytesOut = conn.DataBytesOut;
            existing.LocalEndPoint = conn.LocalEndPoint;
            existing.RemoteEndPoint = conn.RemoteEndPoint;
            existing.State = conn.State;
            existing.LastUpdateTime = DateTime.Now;
        }
    }

    public ulong DataBytesIn
    {
        get
        {
            ulong count = 0; foreach (var state in _states) count += state.DataBytesIn; return count;
        }
    }

    public ulong DataBytesOut
    {
        get
        {
            ulong count = 0; foreach (var state in _states) count += state.DataBytesOut; return count;
        }
    }

    private class TcpConnectionStats
    {
        public ulong DataBytesIn { get; set; }
        public ulong DataBytesOut { get; set; }
        public IPEndPoint LocalEndPoint { get; set; }
        public IPEndPoint RemoteEndPoint { get; set; }
        public TcpState State { get; set; }
        public DateTime LastUpdateTime { get;  set; }

        public bool Equals(TcpConnection connection)
        {
            return LocalEndPoint.Equals(connection.LocalEndPoint) && RemoteEndPoint.Equals(connection.RemoteEndPoint);
        }
    }
}

using System;
using System.Diagnostics;
using System.Globalization;
using System.Text.RegularExpressions;

namespace NetworkTracing
{
    /// <summary>
    /// Description of NetworkListner.
    /// </summary>
    public class NetworkListner : TraceListener
    {
        public static int BytesSent { get; private set;} 
        public static int BytesReceived { get; private set;}
        private bool _inSend = false;
        private bool _inReceived = false;
        private string _lastMessage = "";
        private Regex _lengthRegex = new Regex(@"(\[\d*\]) ([\dA-F]*)");
        public NetworkListner()
        {
            BytesSent = 0;
            BytesReceived = 0;          
        }

        private int ExtractNumOfBytes(string message){
            string lengthUntilThisLineStr = null;
            try {           
                var match = _lengthRegex.Match(message);                
                lengthUntilThisLineStr = match.Groups[2].Value;
            } catch (ArgumentException ex) {
                // Syntax error in the regular expression
            }
            if (String.IsNullOrEmpty(lengthUntilThisLineStr)) {
                return 0;
            }
            var lengthUntilThisLine = int.Parse(lengthUntilThisLineStr,NumberStyles.HexNumber);
            return lengthUntilThisLine;
        }

        public override void Write(string message) {
            if (message.Equals("System.Net.Sockets Verbose: 0 : ")) {
                return;
            }
            if (message.Contains("Exiting Socket#")) {
                int bytes = ExtractNumOfBytes(_lastMessage);
                if (_inSend) {
                    _inSend = false;
                    BytesSent += bytes;
                }else if (_inReceived) {
                    _inReceived = false;
                    BytesReceived += bytes;
                }   
            }           
            else if (message.Contains("Data from Socket")){
                if (message.Contains("Send")) {
                    _inSend = true;
                }
                else if (message.Contains("Receive")) {
                    _inReceived = true;
                }
            }
            _lastMessage = message;
        }

        public override void WriteLine(string message) {
            Write(message + Environment.NewLine);
        }
    }
}

using System;
using System.Configuration;
using System.Diagnostics;
using System.IO;
using System.Net;

namespace NetworkTracing
{
    class Program
    {
        public static void Main(string[] args)
        {           
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://www.google.com");
            request.UserAgent = "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0";
            using (WebResponse response = request.GetResponse())
            {
                using (Stream strumien = response.GetResponseStream())
                {
                    using (StreamReader sr = new StreamReader(strumien))
                    {
                        var res = sr.ReadToEnd();
                        Console.WriteLine("Send -> {0}",NetworkListner.BytesSent);
                        Console.WriteLine("Recieve -> {0}",NetworkListner.BytesReceived);
                        Console.ReadLine();
                    }
                }
            }
        }
    }

<configuration>
<system.diagnostics>
    <sources>
      <source name="System.Net.Sockets" tracemode="includehex" maxdatasize="1024">
        <listeners>
          <add name="network"/>
        </listeners>
      </source>
    </sources>
     <switches>
      <add name="System.Net.Sockets" value="Verbose"/>      
    </switches>
    <sharedListeners>
      <add name="network"
        type="NetworkTracing.NetworkListner, NetworkTracing"
      />
    </sharedListeners>
    <trace autoflush="true"/>
  </system.diagnostics>
</configuration>

public class WebConnectionStats
{
    static int _Read = 0;
    static int _Written = 0;

    public static void Init(bool registerAsSystemProxy = false)
    {
        Fiddler.FiddlerApplication.OnReadRequestBuffer += (s, e) => Interlocked.Add(ref _Written, e.iCountOfBytes);
        Fiddler.FiddlerApplication.OnReadResponseBuffer += (s, e) => Interlocked.Add(ref _Read, e.iCountOfBytes);
        Fiddler.FiddlerApplication.Startup(8088, registerAsSystemProxy, true);
    }

    public static int Read
    {
        get { return _Read; }
    }

    public static int Written
    {
        get { return _Written; }
    }
}

WebConnectionStats.Init(); //call this only once

var client = HttpWebRequest.Create("http://stackoverflow.com") as HttpWebRequest;
client.Proxy = new WebProxy("127.0.0.1", 8088);
var resp = client.GetResponse();
var html = new StreamReader(resp.GetResponseStream()).ReadToEnd();

Console.WriteLine("Read: {0}   Write: {1}", WebConnectionStats.Read, 
                                            WebConnectionStats.Written);

using System.Diagnostics;
using System.Linq;

public class NetworkMonitor
{
    private PerformanceCounter _bytesSent;
    private PerformanceCounter _bytesReceived;
    private readonly int _processId;
    private bool _initialized;

    public NetworkMonitor(int processID)
    {
        _processId = processID;
        Initialize();
    }

    public NetworkMonitor()
        : this(Process.GetCurrentProcess().Id)
    {

    }
    private void Initialize()
    {
        if (_initialized)
            return;

        var category = new PerformanceCounterCategory(".NET CLR Networking 4.0.0.0");
        var instanceNames = category.GetInstanceNames().Where(i => i.Contains(string.Format("p{0}", _processId)));
        if (!instanceNames.Any()) return;

        _bytesSent = new PerformanceCounter
        {
            CategoryName = ".NET CLR Networking 4.0.0.0",
            CounterName = "Bytes Sent",
            InstanceName = instanceNames.First(),
            ReadOnly = true
        };

        _bytesReceived = new PerformanceCounter
        {
            CategoryName = ".NET CLR Networking 4.0.0.0",
            CounterName = "Bytes Received",
            InstanceName = instanceNames.First(),
            ReadOnly = true
        };

        _initialized = true;
    }

    public float GetSentBytes()
    {
        Initialize(); //in Net4.0 performance counter will get activated after first request
        return _initialized ? _bytesSent.RawValue : 0;
    }
    enter code here
    public float GetReceivedBytes()
    {
        Initialize(); //in Net4.0 performance counter will get activated after first request
        return _initialized ? _bytesReceived.RawValue : 0;
    }
} 

  <system.net>
    <settings>
      <performanceCounters enabled="true" />
    </settings>
  </system.net>

   private static void Main(string[] args)
        {
            var netMonitor = new NetworkMonitor();

            var received = netMonitor.GetReceivedBytes();
            var sent = netMonitor.GetSentBytes();

            Console.WriteLine("received:{0}, sent:{1}", received, sent);
            func_fetch_Page("http://www.google.com");

            received = netMonitor.GetReceivedBytes();
            sent = netMonitor.GetSentBytes();

            Console.WriteLine("received:{0}, sent:{1}", received, sent);
            Console.ReadKey();
        }