C#如何通过SOCKET的方式获取HTTPONLY COOKIE

C#如何通过SOCKET的方式获取HTTPONLY COOKIE

正常情况下C#可以使用HttpWebRequest、HttpWebResponse和CookieContainer类来获取Cookie，但是当Cookie设置为httponly，我们就不能用上面的方法获取。这时候可以用Socket来模拟http提交。具体如下:

1.先取得默认DNS服务器地址：

IPEndPoint endPoint;
IPAddress IpList;
IpList = Dns.GetHostAddresses( "www.7fenx.com" )[0];

　　

2.模拟http请求，设置http头：

 

 

StringBuilder sendString= new  StringBuilder(200);
sendString.Append( "POST " + "/"  + " HTTP/1.1\r\n" );
sendString.Append( "Accept: */*\r\n" );
sendString.Append( "Host: " +host+ "\r\n" );
sendString.Append( "User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.72 Safari/537.36\r\n" );
sendString.Append( "Content-Type: application/x-www-form-urlencoded\r\n" );
sendString.Append( "Content-Length: " +sendData.Length+ "\r\n" );
sendString.Append( "Connection: keep-alive\r\n\r\n" );
sendString.Append(postData+ "\r\n" );

3.发送请求

byte [] sendBytes = Encoding.GetEncoding(endcoding).GetBytes(sendString.ToString());
int  httpPoint = 80;
endPoint = new  IPEndPoint(ip, httpPoint);
socket = new  Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
socket.Connect(endPoint);
socket.Send(sendBytes,sendBytes.Length,0);

 

4.获取服务器的返回信息

 

Byte[] byteReceive = new  Byte[1024];
Int32 bytes = socket.Receive(byteReceive);
string  str = Encoding.Default.GetString(byteReceive, 0, bytes);

　　

5.提取Cookie内容

Regex rgxCookie = new  Regex( "Set-Cookie:.*" );
MatchCollection cookies = rgxCookie.Matches(cookie);

提取后需要做的就是解析Cookie就是一些字符串的处理。

附上网络编程基础知识地址：

http://www.7fenx.com/%E7%BD%91%E7%BB%9C%E7%BC%96%E7%A8%8B%E5%9F%BA%E7%A1%80%E7%9F%A5%E8%AF%86.html

初接触网络编程，如果哪里说错请指出。