[enh] Support HTTP over Unix sockets via http://localhost:[/tmp/socket]/foo convention.

• Component: WebKit Misc.
• Status: NEW ---

[Kelly Price]

Support using Unix sockets to access HTTP servers.  Lighttpd and Nginx already support these, but there is no consensus about how URLs are to be formed.

Taking a hint from IETF RFC 2732, Webkit should make the HTTP request over unix sockets should the hostname of the URL be "localhost" and the port be the socket path encapsulated by square brackets. (ie [ ])

Further info at https://plus.google.com/110699958808389605834/posts/DyoJ6W6ufET

[Alexey Proskuryakov]

Allowing access to local resources seems highly questionable from security standpoint. Services with UNIX sockets were not designed for malicious requests from all over the Internet. 

What is the need for this?

[Kelly Price]

This is mainly just to get a de-facto standard in place (I'm kinda scared about pushing out an IETF RFC draft), but can be useful for when the browser and server are on the same machine (a unconnected kiosk where TCP/IP is badly configured, for instance).  As a proof of concept I'm working on a refreshing display of LOLcats collected from Cheezburger.com and stored locally (curated content) on a Raspberry Pi.  (Yeah, I can just do TCP/IP, but then that gets into security sensitive issues for some places.)

Since Unix sockets cannot be accessed over TCP/IP (they are by definition machine only) the only security issue is how the server is (mis)configured (and thus out of scope for this enhancement).

The real use case is over on PHP (and yes, I've filed a bug over there as well as with Chromium and Mozilla) where services that are not exposed on any TCP/IP port can be accessed by a PHP process with native commands.