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php4blueonyx : Blueonyx php update script

Written by Nelson-Jean Gaasch (JuPiTeR126) for Open Skill ( http://www.openskill.lu ) ; Project started on 23/07/2010

Huge thanks to george for http://www.mr-webcam.com/viewtopic.php?f=19&t=58&sid=003347d7d6aee967af207b067b2e6506 : 

That post is where this script is born!

This script is some kind of dirty hack allowing us to save time for the installation of php on Blueonyx.
It works for us on a fresh install (updated); but I've no guarantees whatsoever that it will for you.
Run this script at your own risks, you are the only culprit if anything goes wrong!
Even worse, some things go wrong and we know it! like when I change url fopen or url include in blueonyx's 
config, they don't appeared change in the php info.

The MIT License
Copyright (c) 2010 Nelson-Jean Gaasch
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.


How this script works:
0. I usually just do everything as root here (shivers) and chown to apache when done.
1. Setup the variables in the Variables section
2. The scripts requires ONE parameter to run; this is to ensure people read before they run; possible parameters are:
	compile : installs the dev dependencies, downloads the indicated version, compiles it, and prepares an archive with your php (about 43Mb)
		  Keep it mind you should compile on another machine than the server so dev tools are not available to an attacker in case your server is compromised.
	install : meant to be run with the archive !!! in the server's /home/ directory !!! ; uncompresses it and installs it on the server (yes /home/ is static so far... Sorry bout that)
	enableone : enables the new php for one specific site
	enableall : enables the new php in all sites (I'm not sure I would try this option in production yet)
	disableone : disables the new php in one specific site
	menu : enables the menu


Changelog
v0.01 - First alpha
v0.02 - Simplified variables input
	- Added dynamic version change in case different versions are required (only at script startup)
	- Added the menu
v0.03 - Cheers to Achel to find pecl doesn't like "php" in the path, corrected in this version
	- go-pear was unsecure cause it needed a / in basedir to edit /root/pearrc when installing as root - Kinda fixed this with some sudo process:
	  !!! The script needs one extra existing user !!! (create it in http://your.blueonyx.local:444 and then set this in the variables 
	  !That user needs enough quota to compile!)
	- Added check to prevent downloading php each time the script compiles
	- Added check to prevent overwriting a previously compiled version
	- Implemented some sed parsing for temporarly setting / in php.ini's basedir (no choice)
v0.04 - Minor changes/corrections for switch to php 5.3.4
	- Works for 5.3.5 also
v0.05 - Works with php-5.3.6
      - Implemented better support for pecl extensions