Click here to Skip to main content

Article

Sniffer80 - HTTP Sniffer .NET

Ilya Solnyshkin

Rate me:

1.06/5 (61 votes)

21 Jul 2003

157.2K

6.7K

45

33

Simple web sniffer and packet analyzer based on .NET technology

Download files - 101 Kb

Sample Image - sniffer80.jpg

Introduction

The basic idea of this tool is a great debugging tool to help us develop http socket programs. While working on my products, that use the Internet, I needed to see what all the HTTP headers were doing, and I also needed to see every possible type of HTML a site could throw at me. The result of my job is sniffer which built with 100% managed code using C# and the .NET framework.

Requirements

Windows 2000/XP, .NET framework

Contacting the Author

Please send any comments or bug reports to me via email. For updates to this article (and many other articles), check my site: http://www.bizon.org/ilya/sniffer80.htm.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

Written By

Ilya Solnyshkin

Web Developer

Canada

This member has not yet provided a Biography. Assume it's interesting and varied, and probably something to do with programming.

Comments and Discussions

I received the following error, that it couldn't find MSHTML, when I click the HTML button after establishing a connection.

BTW, what is the "Fusion Log" mentioned in the error text??

Anybody?

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.IO.FileNotFoundException: File or assembly name MSHTML, or one of its dependencies, was not found.
File name: "MSHTML"
at HttpSniffer.HttpSnifferForm.RefreshBrowser(String Text)
at HttpSniffer.HttpSnifferForm.OnButtonClick(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.RadioButton.OnClick(EventArgs e)
at System.Windows.Forms.RadioButton.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Fusion log follows:
=== Pre-bind state information ===
LOG: DisplayName = MSHTML, Version=4.0.0.0, Culture=neutral, PublicKeyToken=null
(Fully-specified)
LOG: Appbase = C:\Data\dev\Samples\httpsniffer\
LOG: Initial PrivatePath = NULL
Calling assembly : sniffer80_r, Version=1.0.1297.27177, Culture=neutral, PublicKeyToken=null.
===

LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).
LOG: Post-policy reference: MSHTML, Version=4.0.0.0, Culture=neutral, PublicKeyToken=null
LOG: Attempting download of new URL file:///C:/Data/dev/Samples/httpsniffer/MSHTML.DLL.
LOG: Attempting download of new URL file:///C:/Data/dev/Samples/httpsniffer/MSHTML/MSHTML.DLL.
LOG: Attempting download of new URL file:///C:/Data/dev/Samples/httpsniffer/MSHTML.EXE.
LOG: Attempting download of new URL file:///C:/Data/dev/Samples/httpsniffer/MSHTML/MSHTML.EXE.

....

a l chavez
---
at us, very deafly a most stares
collosal hoax of clocks and calendars
ee cummings

Can you explain more about how you catch data from network?

I find one problem: If I send the http petitions using telnet, your program only catch the server response.

General News Suggestion Question Bug Answer Joke Praise Rant Admin

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

Go to top