c# - How to capture HTTP packet with SharpPcap -

I would like to capture all incoming HTTP packets on my machine. To do this, I am using SharpPcap which is a WinPcap The cover is.

SharpPcap works very well, but it captures TCP packets and what it wants to do for me is a very low level. Does anyone know how can I easily get full HTTP requests / reactions from all these TCP packets?

Thanks

SharpPcap is already able to capture the packet in the same way That's what the virus does (just in the code instead of the GUI). And you can either either parse them directly or you can put them in the drive in the common .pcap file format.

The steps to parse the capture are:

• Open a connection at any time
• Loop a while Or start capturing using an event callback
• Parsing the raw packet for the type you want

If you are reading .PPP dump files In addition to calling you an offline capture reader is almost the same, there is no need to select an interface, and you can set the majority There is no need to do the modes. All standard filters, which use the VirusHark, TCPDump, and most other PAPP frameworks, are supported in the Sharppap. Check for the TCPDump man for these references.

There is currently no support to parse HTTP directly, but it is really easy to parse TCP packets.

When you receive raw packets (non-purse) do this:

  TCPP packet = TCPPket. GetIncpatulate (raw packet);  

Packet. Net (a separate and included component of SharpPcap) is capable of pulling the TCP portion directly, even if the communication is explained by VPN, PPOE, or PPP.

Once you have Parsed the TCPPacket, then only grab the packet. Payloadbates for payloads in a byte array, which should have HTTP headers in raw byte, which can be changed in the appropriate text format (I'm not sure that the HTTP header uses UTF-8 or ASCII encoding at that level). There should be a handy tool / library available to parser HTTP headers.

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To remove HTTP packets from TCP:

Gather the TCP packets of connections that come in connection to you and if the data is fragmented (More than 1500 bytes) You will need to re-assemble the parts in memory to find out which parts you need to track order / receipt numbers carefully.

This is a trivial thing to accomplish with SharpPcap because you are working with very little part of the stack

This is an interesting article from VirusHark, in which it is in C Can be completed.

As of now, SharpPcap does not support TCP payload percing.

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See if you are looking for easy paper examples, how to use SharpPcap source treat and include example projects. There is also one.

If you have more questions and / or want to request any feature for the project, then do not hesitate to post on the Sourceforjay project. It is far from dead and continues under active development.

Note: Chris Morgan is the lead of the project and I'm one of the developers for SharpPcap / Packet.Net.

Update: The tutorial project on Code Project is now up-to-date to match the current API.