LibHTTP 4

LibHTTP is a general perpose library for UnrealEngine2. It allows you to fetch files stored on webservers.
Features:

Support for HTTP version 1.0 and 1.1
Support for GET/POST/HEAD/TRACE request methods
Normal and accelerated transfer modes (accelerated mode creates a performance hit)
Response and Request Header managent
Cookie management
Authentication supports (both Basic and Digest methods are supported)
Support for HTTP proxies
Gracefull handling of connection timeouts
Automatic decoding of chunked data
Automatically follows redirections (creates a redirection history)
Support for multipart/form-data POST data (prefered form)

Download

The downloads include the binary .u file and the source. DO NOT recompile the source, use the binary, or else users can get a "modified package" error.

Version 4 [zip] (UT2004)
Version 3.5.3 [zip] (UT2004)
Version 3.5 [zip] (UT2004)
Version 3 [zip] (UT2004)
Version 2 [zip] (UT2004)
Version 2 [zip] (UT2003)
Version 1 [zip] (LGPL, UT2003)

License

Lesser Open Unreal Mod License 
Version 1.1, September 2005

0. Definitions
"Program"       the work, either in binary or source form, that has a notice 
                attached to it stating that it has been released under this 
                license it by the copyright holder.
"Modification"  a derivate of the Program or any other work based on the Program
"Linking"       using parts of the Program, or using parts of any other work, 
                thus creating a direct dependency between two Programs.
"You"           the licensee
"Runtime Environment"
                the virtual machine or operating system required to run the 
                Program, as released by the Publisher or Creator of said
                runtime environment. This includes any extentions or updates
                for the runtime environment released by the Publisher or 
                Creator.

1. License
Herewith everybody is granted permission to copy and distribute verbatim copies 
of this document. The only restriction lies on changing the content, with the 
exception to translation of this license.

This license applies to the Program that has been released under this license. 
The license only applies to copying, distribution and modification of the 
Program. Execution or output of the Program are not covered by this license, 
however the right for additional limitations on the use (that do not cover 
copying, distribution or modification) is granted to the copyright holder.
This license is only valid when all terms in this license comply with the 
licenses of the dependecies of the Program. This includes the license of the
possible required runtime environment.

2. Copying and distribution
You are granted to copy or distribute verbatim copies of the Program, on any 
medium, or in any format as you see fit. You are not limited to charging a fee 
for the physical act of transferring the copy, nor are you limited to provide 
warranty for the Program in return of a fee. Unless this is prohibited by the
license of the Runtime Environment.

Any distribution of the program should be accompanied with a verbatim copy of 
this license.

3. Modification
You are allowed to modify the Program, or portions of it, therefore making it a 
derivate of the Program. You are allowed to distribute your Modifications under 
the following conditions:
        - You must clearly state that it is a modification of the Program
        - The original copyright notice must be kept intact
        - The modified files must contain notices of the changes made to it
        - The Modification must be released under the same license as the Program
        - Distribution happens in compliance with section 2

4. Source
The original source of the Program or Modification must be freely available on 
request.

5. Linking        
The license grants exclusive right to link with any non-free part of the 
Runtime Environment, as provided by the publisher or creator of said Runtime 
Environment. 
Using addapted portions of source code available in the runtime environment 
in the Program is only allowed under the following terms:
        - the addapted code is clearly marked to originate from the runtime
          environment, quoting the original copyright.
        - the following notice is added to the top of the file:
          "This file contains portions of code from the runtime environment."

6. NON WARRANTY
THIS SOFTWARE DOES NOT COME WITH A WARRANTY OF ANY KIND, UNLESS NOTED OTHERWISE 
BY THE COPYRIGHT HOLDER OR WARRANTY PROVIDER. THE ENTIRE RISK OF THE PERFORMANCE 
AND QUALITY OF THE PROGRAM LIES WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, 
YOU WILL ASSUME ALL COSTS FOR REQUIRED REPAIR OR CORRECTION.

UnrealEngine2 support

Version 2 has been developed using the UT2004 build of the UnrealEngine2 (UnrealEngine2.5). However, there's a big chance that this library also works on other UnrealEngine2 build without much additional work.
If you are going to use this library on a diffirent build of the UnrealEngine2, please notify me (elmuerte at drunksnipers.com) so we can create a release version of that build.

Documentation

The documentation for this library can be created from the source using UnCodeX but it is also available on the UnrealWiki.

Version history

New in version 200:

Supports HTTP 1.1
Cached resolves
Redirection history
Chuncked encoding automatically decoded
Added connection timeout
More delegates

New in version 300:

bug fixes
Improved easy of use: get(), post(), head()
Support for multipart/form-data POST data
Two different transfer modes: Normal and Fast (tries to download as much data as allowed within a single tick)
Support for proxy authentication, you get the best performance by setting the right user/pass in the beginning. Otherwise the code using this library will have to do additional processing when the proxy user and pass are not accepted.
Better support for various authentication methods
Support for digest authentication (more secure HTTP authentication). When digest is used instead of basic the client has to make 2 requests. With the first request the server will send information needed to construct the response. Basic authentication doesn't have this issue.
Cookie storage class will automatically be created when bProcCookies or bSendCookies is set to true (and the cookies hasn't been set)

New in version 350:

All delegates contains a HttpSock Sender argument
New function string randString(optional int length, optional coerce string prefix)
MultiPart divider string is now more unique (prevents potential issues with the content data)
Empty multipart items are never added
Made more support functions public
New utility function string timestampToString(int timestamp, optional string Timezone, optional string format) that will convert a UNIX timestamp to a string (RFC 1123, RFC 1036, RFC 2822, ANSI C asctime formats supported)
Fixed potentional issues with timestamps and cookies

New in version 400:

Various small bugfixes
Redone the redirection processing, now with better support for each redirection type
New variable HttpSock.bRfcCompliantRedirect, set this to false for the old, and bad, redirection handling on 301/302 headers (e.g. transform POST into GET)
Moved DNS caching to a global object, multiple HttpSock classes now use the same cache data
Added automatic retrying when authentication data is provided in the url, the prefered method for using authenticated locations is to provide the username and password in the url or set them in the currenturl after the OnRequireAuthorization() was received. Can be disabled by setting HttpSock.bAutoAuthenticate to false
HttpSock.ClearRequestData() will now automatically clear authentication information
NewsFeed properly reads CDATA
NewsFeed description fields are truncated to 512 bytes (because of a bug in the engine). Set NewsFeed.bSizeBugFix to false to disable it.
URL parsing is now done by HttpUtil and stores it in a new xURL struct, all old references to storage of the location and host have been changed to xURL.
Fixed a couple of bugs in cookie handler, the first cookie was never properly unset
Fixed a bug where the last line of data may not be properly added to the result array
Moved the HttpTest class to a UsUnit test suite
Fixed HttpSock.GetReturnHeader()
Added a new class HttpCache that manages cached requests, this is somewhat experimental