#!/bin/sh
# bachir soussi chiadmi
#
# http://www.debian.org/doc/manuals/securing-debian-howto/
# https://www.thefanclub.co.za/how-to/how-secure-ubuntu-1204-lts-server-part-1-basics
# https://www.linode.com/docs/websites/lamp/lamp-server-on-debian-7-wheezy/
# http://web-74.com/blog/reseaux/gerer-le-deploiement-facilement-avec-git/
#

echo "This script has been tested only on Linux Debian 7"

_cwd="$(pwd)"

echo "Installing harden"
apt-get install harden

echo "Installing ufw and setup firewall (allowing only ssh and http)"
apt-get install ufw
ufw allow ssh
ufw allow http
ufw enable
ufw status verbose

echo "Create new user (you will be asked a user name and a password)"
read -p "Enter user name: " user
# read -p "Continue? (Y/N): " confirm && [[ $confirm == [yY] || $confirm == [yY][eE][sS] ]] || exit 1
adduser "$user"
echo "adding $user to admin group and limiting su to the admin group"
groupadd admin
usermod -a -G admin "$user"
dpkg-statoverride --update --add root admin 4750 /bin/su

echo "Securing ssh (disabling root login)"
sed -i 's/PermitRootLogin\ yes/PermitRootLogin no/g' /etc/ssh/sshd_config
sed -i 's/PermitEmptyPasswords\ yes/PermitEmptyPasswords no/g' /etc/ssh/sshd_config
sed -i 's/Protocol\ [0-9]/Protocol 2/g' /etc/ssh/sshd_config

echo "Installing AMP web server"
echo "Installing Apache2"
apt-get install apache2
a2enmod rewrite
service apache2 restart
echo "installing Mysql"
apt-get install mysql-server
mysql_secure_installation
echo "Installing PHP"
apt-get install php5 php-pear
echo "Configuring PHP"
cp /etc/php5/apache2/php.ini /etc/php5/apache2/php.ini.back
sed -i "s/max_execution_time\ =\ [0-9]\+/max_execution_time = 60/g" /etc/php5/apache2/php.ini
sed -i "s/max_input_time\ =\ [0-9]\+/max_input_time = 60/g" /etc/php5/apache2/php.ini
sed -i "s/memory_limit\ =\ [0-9]\+M/memory_limit = 512M/g" /etc/php5/apache2/php.ini
sed -i "s/;\?error_reporting\ =\ [^\n]\+/error_reporting = E_COMPILE_ERROR|E_RECOVERABLE_ERROR|E_ERROR|E_CORE_ERROR/g" /etc/php5/apache2/php.ini
sed -i "s/;\?display_errors\ =\ On/display_errors = Off/g" /etc/php5/apache2/php.ini
sed -i "s/;\?log_errors\ =\ Off/log_errors = On/g" /etc/php5/apache2/php.ini
# following command doesn't work, make teh change manualy
#sed -ri ":a;$!{N;ba};s/;\?\ \?error_log\ =\ [^\n]\+([^\n]*\n(\n|$))/error_log = \/var\/log\/php\/error.log\1/g" /etc/php5/apache2/php.ini
echo "register_globals = Off" >> /etc/php5/apache2/php.ini

mkdir /var/log/php
chown www-data /var/log/php

apt-get install php5-mysql

echo "installing vhost"
read -p "hostname ? " _host_name
cp "$_cwd"/example.org.conf /etc/apache2/sites-available/"$_host_name".conf
sed -ir "s/example\.org/$_host_name/g" /etc/apache2/sites-available/"$_host_name".conf

mkdir -p /srv/www/"$_host_name"/public_html
mkdir /srv/www/"$_host_name"/logs
#set proper right to user will handle the app
chown -R root:admin  /srv/www/"$_host_name"/
chmod -R g+w /srv/www/"$_host_name"/
chmod -R g+r /srv/www/"$_host_name"/

# create a shortcut to the site
mkdir /home/"$user"/www/
chown "$user":admin /home/"$user"/www/
ln -s /srv/www/"$_host_name" /home/"$user"/www/"$_host_name"

#activate teh vhost
a2ensite "$_host_name".conf

#restart apache
service apache2 restart

#installing better prompt and some goodies for root
echo "shell prompt"
git clone git://github.com/bachy/dotfiles-server.git ~/.dotfiles-server && cd ~/.dotfiles-server && ./install.sh && cd -

# setup user environment
echo "$user tasks"
su $user
cd ~
echo "shell prompt"
git clone git://github.com/bachy/dotfiles-server.git ~/.dotfiles-server && cd ~/.dotfiles-server && ./install.sh && cd -
cd ~
source .bashrc

# setup bare repositorie to push to
echo "setup git repositories"
mkdir ~/git-repositories
mkdir ~/git-repositories/"$_host_name".git
cd ~/git-repositories/"$_host_name".git
git init --bare

# setup git repo on site folder
cd /srv/www/"$_host_name"/public_html/
git init
# link to the bare repo
git remote add origin ~/git-repositories/"$_host_name".git

# cerate hooks that will update the site repo
cd ~
cp "$_cwd"/pre-receive ~/git-repositories/"$_host_name".git/hooks/
cp "$_cwd"/post-receive ~/git-repositories/"$_host_name".git/hooks/

sed -ir "s/PRODDIR=\"www\"/PRODDIR=\/srv\/www\/$_host_name\/public_html/g" ~/git-repositories/"$_host_name".git/hooks/pre-receive
sed -ir "s/PRODDIR=\"www\"/PRODDIR=\/srv\/www\/$_host_name\/public_html/g" ~/git-repositories/"$_host_name".git/hooks/post-receive

cd ~/git-repositories/"$_host_name".git/hooks/
chmod +x post-receive pre-receive

# done
echo "install succeed"
echo "your site stay now to ~/www/$_host_name"
echo "you can push updates on prod branch throug $user@IP.IP.IP.IP:git-repositories/$_host_name.git"