HTTP

This is a library I wrote recently for interpreting HTML requests from browsers and constructing responses. If you use this, please credit me accordingly.

This is still a work in progress. Feedback is welcome.

Features

• Parsing of HTTP requests from a browser.
• Constructing HTTP responses for sending back to a browser.
• "Basic" authentication handling.
• URI parsing utilities.
• WebSocket support.

Compatibility

• This code doesn't handle the WebSocket handshake hashing; you'll need to provide your own. See below.
• This was written and tested on Windows 8 and Visual Studio 11 Beta, but there shouldn't be any issues with other compilers.
• Some munging may be required for Linux, but there's no code that can't be easily ported.
• It does depend on std::string and std::map.
• This uses C++11, but only for minor stuff.

Disclaimer

• I release this without any promises of functionality or warranty.
• This code is in no way affiliated with or endorsed by Microsoft.
• I'm happy to be contacted if you have problems with any of this code.

Credits

• The Base64 encoding and decoding was taken from http://www.adp-gmbh.ch/win/misc/webserver.html

WebSocket Handshake Hashing

Currently I'm using a third party hashing library that isn't mine to distribute, but I can recommend the smallsha1 code found at http://code.google.com/p/smallsha1/.

Integrate it with this library by using the following code to build your response to the Websocket handshake:

HTTP::HashFunc hashFunc = [] (LPCSTR pStrIn, LPUINT pHashOut)
{
	SHA1 hash;
	hash << pStrIn;
	hash.Result((unsigned*) pHashOut);
};

HTTP::BuildWebsocketRequestResponse(
	request,
	hashFunc,
	&responseHeader);