这是我特意试图做的：
我已经写了一个HttpModule做一些站点的跟踪.我们网站上的一些旧的.aspx页面是硬编码的,没有真正的控件,但它们是.aspx文件,因此我们的模块在请求时仍然运行.
我的模块的处理程序附加到PostRequestHandlerExecute,所以我相信将被发送回请求者应该已经确定了.
因此,如果
<title>Chunky Bacon</title>
在最终呈现的HTML中发送到请求者.然后我想要“Chunky Bacon”.
想法？
解决方法
有趣的小挑战
以下是代码：
StreamWatcher.cs
public class StreamWatcher : Stream
{
private Stream _base;
private MemoryStream _memoryStream = new MemoryStream();
public StreamWatcher(Stream stream)
{
_base = stream;
}
public override void Flush()
{
_base.Flush();
}
public override int Read(byte[] buffer,int offset,int count)
{
return _base.Read(buffer,offset,count);
}
public override void Write(byte[] buffer,int count)
{
_memoryStream.Write(buffer,count);
_base.Write(buffer,count);
}
public override string ToString()
{
return Encoding.UTF8.GetString(_memoryStream.ToArray());
}
#region Rest of the overrides
public override bool CanRead
{
get { throw new NotImplementedException(); }
}
public override bool CanSeek
{
get { throw new NotImplementedException(); }
}
public override bool CanWrite
{
get { throw new NotImplementedException(); }
}
public override long Seek(long offset,SeekOrigin origin)
{
throw new NotImplementedException();
}
public override void SetLength(long value)
{
throw new NotImplementedException();
}
public override long Length
{
get { throw new NotImplementedException(); }
}
public override long Position
{
get
{
throw new NotImplementedException();
}
set
{
throw new NotImplementedException();
}
}
#endregion
}
TitleModule.cs
public class TitleModule : IHttpModule
{
public void Dispose()
{
}
private static Regex regex = new Regex(@"(?<=<title>)[\w\s\r\n]*?(?=</title)",RegexOptions.Compiled | RegexOptions.IgnoreCase);
private StreamWatcher _watcher;
public void Init(HttpApplication context)
{
context.BeginRequest += (o,e) =>
{
_watcher = new StreamWatcher(context.Response.Filter);
context.Response.Filter = _watcher;
};
context.EndRequest += (o,e) =>
{
string value = _watcher.ToString();
Trace.WriteLine(regex.Match(value).Value.Trim());
};
}
}
