Add FastCGI support to node.js

[geofft]

In theory it might be nice to support node.js as an application language. Unfortunately, it seems not to have FastCGI support. The most I found about it is the following three threads: ​1 ​2 ​3 It's not clear to me they necessarily support being server-spawned.

[andersk]

gdb seems to have solved this problem for stripe-ctf.

​https://blog.gregbrockman.com/2012/08/system-design-stripe-capture-the-flag/ ​https://github.com/gdb/ctf-helpers/blob/master/bin/fcgi-shim

[achernya]

Fedora 19 will be the first Scripts release that has packaged node.js, we should provide this feature. I've built the Fedora 19 nodejs packages on scripts-f17-dev for anyone that wants to work on it now.

[hobinjk]

​https://github.com/hobinjk/nodejs-fcgi-shim has a simple implementation, I (or whoever has time) should write the thing that installs it

[andersk]

We need to make the node process listen on an fd (such as stdin), not a TCP port, so that other scripts users and/or visitors can’t visit the TCP port directly and bypass Apache authentication.

[geofft]

achernya says, first, that this approach is fundamentally not going to work because it doesn't allow websockets support, and second, that he has a more up-to-date version in his web_scripts: this appears to be /mit/achernya/web_scripts/node, a fork of ​github.com/samcday/node-fastcgi-application.

[andersk]

I’m not sure websockets are a thing yet on Apache at all. (Maybe that changes a little bit with 2.4’s ​mod_proxy_wstunnel? But that doesn’t look like quite what we want either.) Although it’s true that we probably don’t want to lock ourselves into a protocol that doesn’t support them.