#!/bin/bash
#
#
#
#Script to install Ruby on Rails on a cPanel server
#
#
#This script is ©2006 Defender Technologies Group LLC.,
#and may not be reproduced in part or full without permission
#
#Tony Dodd <tony@defenderhosting.com>
#
#

if [ x`which GET` == "x" ]
then
	echo "Sorry, GET is required for this script to run"
	exit 2
fi

if [ `id | awk '{print $1}' | sed -e 's/(.*)$//g' | cut -d"=" -f2` -ne "0" ]
then
	echo "Sorry, root is required for this script to run"
	exit 2
fi

function rubyver {

#function will grab the download url for latest ruby

ruby_url=`GET http://ruby-lang.org/en/20020102.html | grep "stable release" -m1 | cut -d"<" -f4 | cut -d"\"" -f2`
ruby_version=`echo $ruby_url | cut -d"/" -f6 | sed -e 's/\.tar\.gz//g'`
ruby_file=`echo $ruby_url | cut -d"/" -f6`

}

function doruby {

if [ -e /usr/src/rubyfiles/ruby/$ruby_version ]
then

echo "$ruby_version already installed, skipping"

else

mkdir -p /usr/src/rubyfiles/ruby
cd /usr/src/rubyfiles/ruby
wget $ruby_url
tar -zxvf $ruby_file
cd $ruby_version
./configure && make && make install

fi

}

function gemsver {

gems_url=http\:\/\/rubyforge.org`GET http://rubyforge.org/frs/?group_id=126 | grep rubygems\- -m1 | cut -d"\"" -f2`
gems_version=`echo $gems_url | cut -d"/" -f7 | sed -e 's/\.tgz//g'`
gems_file=`echo $gems_url | cut -d"/" -f7`

}

function dogems {

if [ -e /usr/src/rubyfiles/gems/$gems_version ]
then

echo "$gems_version already installed, skipping"

else

mkdir /usr/src/rubyfiles/gems # if rubyfiles hasn't been created yet, there is a problem.
cd /usr/src/rubyfiles/gems
wget $gems_url
tar -zxvf $gems_file
cd $gems_version
ruby setup.rb

fi

}

function dorails {

gem install rails -y
#more of a placeholder than a real function, in case this method ever needs to be revised.

}

function fcgiver {

#again, another semi place-holder in case this changes in future.

fcgi_url="http://fastcgi.com/dist/fcgi-2.4.0.tar.gz"
fcgi_version="fcgi-2.4.0"
fcgi_file="fcgi-2.4.0.tar.gz"

}

function dofcgi {

if [ -e /usr/src/rubyfiles/fcgi/$fcgi_version ]
then

echo "$fcgi_version already installed, skipping"

else

mkdir /usr/src/rubyfiles/fcgi
cd /usr/src/rubyfiles/fcgi
wget $fcgi_url
tar -zxvf $fcgi_file
cd $fcgi_version
./configure && make && make install

fi

}

function modfcgiver {

#another place-holder

modfcgi_url="http://fastcgi.com/dist/mod_fastcgi-2.4.2.tar.gz"
modfcgi_version="mod_fastcgi-2.4.2"
modfcgi_file="mod_fastcgi-2.4.2.tar.gz"

}

function domodfcgi {

if [ -e /usr/src/rubyfiles/mod_fcgi/$modfcgi_version ]
then

echo "$modfcgi_version already installed, skipping"

else

mkdir /usr/src/rubyfiles/mod_fcgi
cd /usr/src/rubyfiles/mod_fcgi
wget $modfcgi_url
tar -zxvf $modfcgi_file
cd $modfcgi_version
$apxs -o mod_fastcgi.so -c *.c
$apxs -i -a -n fastcgi mod_fastcgi.so

fi

}

function findapxs {

if [ -e /usr/local/apache/bin/apxs ]
then

apxs="/usr/local/apache/bin/apxs"
echo "found apxs at $apxs"

elif [ -n `whereis apxs | awk '{print $2}'` ]
then

apxs="`whereis apxs | awk '{print $2}'`"
echo "found apxs at $apxs"

else

echo "I cannot find apxs, please add a symlink to it in /usr/sbin/ then run me again"

exit 2

fi

}

function dogemfcgi {

#placeholder

gem install fcgi -y

}

function httpdconf {

if [ -e /etc/httpd/conf/httpd.conf ]
then

httpd_conf="/etc/httpd/conf/httpd.conf"

else

httpd_conf="/usr/local/apache/conf/httpd.conf"

fi

fcgi_if_line=`cat $httpd_conf -n | grep AccessFile -m1 -B1 | head -1 | awk '{print $1}'`
fcgi_load_line=$(( `cat -n $httpd_conf | head -300 | grep LoadModule | tail -1 | awk '{print $1}'` + 1 ))

cd /usr/src/rubyfiles/scripts/
chmod +x insertext.sh
/usr/src/rubyfiles/scripts/insertext.sh $fcgi_if_line fcgi_if $httpd_conf
/usr/src/rubyfiles/scripts/insertext.sh $fcgi_load_line fcgi_load $httpd_conf

/etc/init.d/httpd restart

}

function getsupport {

#grab support scripts that we need

mkdir -p /usr/src/rubyfiles/scripts/
cd /usr/src/rubyfiles/scripts
if [ -e insertext.sh ]
then

echo "insertext.sh already exists, overwriting"
wget -O insertext.sh http://download.powervps.com/scriptsupport/insertext.sh

else

wget -O insertext.sh http://download.powervps.com/scriptsupport/insertext.sh

fi

if [ -e fcgi_load ]
then

echo "fcgi_load already exists, overwriting"
wget -O fcgi_load http://download.powervps.com/scriptsupport/fcgi_load

else

wget -O fcgi_load http://download.powervps.com/scriptsupport/fcgi_load

fi

if [ -e fcgi_if ]
then

echo "fcgi_if already exists, overwriting"
wget -O fcgi_if http://download.powervps.com/scriptsupport/fcgi_if

else


wget -O fcgi_if http://download.powervps.com/scriptsupport/fcgi_if

fi

}

function folders {

mkdir -p /fcgi_ipc
chown nobody.nobody /fcgi_ipc -R
chmod 755 /fcgi_ipc -R

}

function cleaning_up {

echo "cleaning up files we do not need"

rm -rf /usr/src/rubyfiles

}

function finished {

echo "

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!                                                                       !!
!!                        INSTALLATION COMPLETE                          !!
!!                                                                       !!
!! The following will get a test app set up to make sure RoR is working. !!
!!                                                                       !!
!! cd /home/USER                                                         !!
!! rails /home/USER/testapp                                              !!
!! cd /home/USER/testapp/                                                !!
!! ruby script/generate controller test                                  !!
!! cd /home/USER/public_html                                             !!
!! ln -s ../testapp/public rails                                         !!
!!                                                                       !!
!! Then visit http://www.yourtestdomain.com/rails/                       !!
!! and you should see a congratulations page.                            !!
!!                                                                       !!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"

}

getsupport
findapxs
rubyver
gemsver
fcgiver
modfcgiver
doruby
dogems
dorails
dofcgi
domodfcgi
dogemfcgi
httpdconf
folders
cleaning_up
finished