Разработка распределенных приложений в Microsoft.NET Framework

         

public class HttpListenerWorkerRequest: HttpWorkerRequest


// SevaAspHost.cs
using System;
using System.IO;
using System.NET;
using System.Web;
using System.Web.Hosting;
using System.Text.RegularExpressions;
namespace Seva.AspHost
{
public class AspHost: MarshalByRefObject
{
private HttpListener listener;

private string virtualDir;
private string hostingDir;



public string VirtualDir
{
get {return virtualDir;}
}

public string HostingDir
{
get {return hostingDir;}
}

public static AspHost CreateHost(string[] prefixes, string aspVirtualDir,
string aspHostingDir)
{
if (!HttpListener.IsSupported)
{
throw new NotSupportedException(
"Требуется Windows XP SP2/Server 2003.");
}
AspHost host = (AspHost) ApplicationHost.CreateApplicationHost(
typeof(AspHost), aspVirtualDir, aspHostingDir);
host.Init(prefixes, aspVirtualDir, aspHostingDir);
return host;
}
public void Init(string[] prefixes, string aspVirtualDir,
string aspHostingDir)
{
virtualDir = aspVirtualDir;
hostingDir = aspHostingDir;
listener = new HttpListener();
foreach (string prefix in prefixes)
listener.Prefixes.Add(prefix);
}

public void Start()
{
listener.Start();
}
public void Stop()
{
listener.Stop();
}

public void ProcessRequest()
{
HttpListenerContext context = listener.GetContext();

HttpListenerWorkerRequest workerRequest =
new HttpListenerWorkerRequest(context, this);

HttpRuntime.ProcessRequest(workerRequest);
}
}

public class HttpListenerWorkerRequest: HttpWorkerRequest
{
private HttpListenerContext context;
private AspHost host;


public HttpListenerWorkerRequest(HttpListenerContext listenerContext,
AspHost aspHost)
{
context = listenerContext;
host = aspHost;
}

public override void EndOfRequest()
{
context.Response.OutputStream.Close();
context.Response.Close();
}
public override void FlushResponse(bool finalFlush)
{
context.Response.OutputStream.Flush();
}
public override string GetHttpVerbName()
{
return context.Request.HttpMethod;
}
public override string GetHttpVersion()


{
return string.Format("HTTP/{0}",
context.Request.ProtocolVersion.ToString());
}

public override string GetLocalAddress()
{
return context.Request.LocalEndPoint.Address.ToString();
}

public override int GetLocalPort()
{
return context.Request.LocalEndPoint.Port;
}

public override string GetQueryString()
{
return context.Request.Url.Query.TrimStart(new char[]{'?'});
}

public override string GetRawUrl()
{
return context.Request.RawUrl;
}

public override string GetRemoteAddress()
{
return context.Request.RemoteEndPoint.Address.ToString();
}

public override int GetRemotePort()
{
return context.Request.RemoteEndPoint.Port;
}

public override string GetUriPath()
{
return context.Request.Url.LocalPath;
}

public override void SendKnownResponseHeader(int index, string value)
{
context.Response.Headers[GetKnownResponseHeaderName(index)] = value;
}

public override void SendResponseFromMemory(byte[] data, int length)
{
context.Response.OutputStream.Write(data, 0, length);
}

public override void SendStatus(int statusCode, string statusDescription)
{
context.Response.StatusCode = statusCode;
context.Response.StatusDescription = statusDescription;
}

public override void SendUnknownResponseHeader(string name, string value)
{
context.Response.Headers[name] = value;
}

public override void SendResponseFromFile( IntPtr handle, long offset,
long length)
{
}

public override void SendResponseFromFile(string filename, long offset,
long length)
{
}
public override string GetAppPath()
{
return host.VirtualDir;
}

public override string GetAppPathTranslated()
{
return host.HostingDir;
}

public override string GetUnknownRequestHeader(string name)
{
return context.Request.Headers[name];
}

public override string GetKnownRequestHeader(int index)
{
switch (index)
{
case HeaderUserAgent:
return context.Request.UserAgent;
default:
return
context.Request.Headers[GetKnownRequestHeaderName(index)];
}


}

public override string GetFilePath()
{
string s = context.Request.Url.LocalPath;
Regex re = new Regex(@"^(.*\.as\wx)\/\w+$");
Match m = re.Match(s);
if (m.Success)
s = m.Groups[1].Value;
return s;
}

public override string GetFilePathTranslated()
{
string s = GetFilePath().Substring(host.VirtualDir.Length);
return host.HostingDir + s.Replace('/', '\\');
}
public override string GetPathInfo()
{
return context.Request.Url.LocalPath.Substring(GetFilePath().Length);
}

public override int ReadEntityBody(byte[] buffer, int size)
{
return context.Request.InputStream.Read(buffer, 0, size);
}
}
}

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