using System;
using System.IO;
using System.Web.UI;
using System.Web;
using URLRewriter.Config;
using System.Configuration;
using System.Text.RegularExpressions;
namespace URLRewriter
{
/**//// <summary>
/// 生成htm静态页面
/// </summary>
    public class ResponseFilter : Stream
{
private Stream m_sink;
private long m_position;
private FileStream fs;
public ResponseFilter(Stream sink, string filePath)
{
m_sink = sink;
fs = new FileStream(filePath, FileMode.OpenOrCreate, FileAccess.Write);
}
// The following members of Stream must be overriden.
        public override bool CanRead
{ get { return true; } }
public override bool CanSeek
{ get { return false; } }
public override bool CanWrite
{ get { return false; } }
public override long Length
{ get { return 0; } }
public override long Position
{
get { return m_position; }
set { m_position = value; }
}
public override long Seek(long offset, System.IO.SeekOrigin direction)
{
return 0;
}
public override void SetLength(long length)
{
m_sink.SetLength(length);
}
public override void Close()
{
m_sink.Close();
fs.Close();
}
public override void Flush()
{
m_sink.Flush();
}
public override int Read(byte[] buffer, int offset, int count)
{
return m_sink.Read(buffer, offset, count);
}
// Override the Write method to filter Response to a file.
        public override void Write(byte[] buffer, int offset, int count)
{
//Write out the response to the browser.
            m_sink.Write(buffer, 0, count);
//Write out the response to the file.
            fs.Write(buffer, 0, count);
}
}
}