/// <summary>
/// 准备代理数据包
/// </summary>
/// <param name="proxy"></param>
/// <param name="remoteEndPoint"></param>
/// <returns></returns>
public static byte[] HttpRequest(SocksProxy proxy, EndPoint remoteEndPoint)
{
Contract.Requires(proxy != null && remoteEndPoint != null);
byte[] result = null;
string host;
var destDe = remoteEndPoint as DnsEndPoint;
if (destDe != null)
{
host = destDe.ToString();
}
else
{
var destIpe = (IPEndPoint)remoteEndPoint;
host = destIpe.ToString();
}
if (proxy.Credential == null)
{
result = Encoding.ASCII.GetBytes(string.Format("CONNECT {0} HTTP/1.1\r\nHost: {0}\r\n\r\n", host));
}
else
{
var credential = proxy.Credential;
string base64Encoding = Convert.ToBase64String(Encoding.ASCII.GetBytes(string.Format("{0}:{1}", credential.UserName, credential.Password)));
result = Encoding.ASCII.GetBytes(string.Format("CONNECT {0} HTTP/1.1\r\nHost: {0}\r\nProxy-Authorization: Basic {1}\r\n\r\n", host, base64Encoding));
}
return(result);
}
public static void HttpResponse(SocksProxy proxy, byte[] bPack)
{
var match = Regex.Match(Encoding.ASCII.GetString(bPack), @"[HTTP/]\d[.]\d\s(?<code>\d+)\s(?<reason>.+)");
if (!match.Success)
{
throw new ProxyAuthException(0, "Invalid proxy message response.");
}
int code = Convert.ToInt32(match.Groups["code"].Value);
if (code != 200)
{
throw new ProxyAuthException(code, match.Groups["reason"].Value);
}
}
