#!/bin/bash
#===========================
# UMVIRT LINUX FROM SCRATCH 
#===========================
# Compilation script.
# Network mode. 
#===========================
# Release: 0.1
# Package: Linux-PAM
#===========================
# DB commit: d35a620850806ab581b32cb34d268a904c9c0a5f
# APP commit: 1ca4178aea919e4c9e869e3d650ff8af9678bd6f
#===========================

echo "ULFS Package installation start"
echo "==============================="
echo "Package: Linux-PAM" 
echo "Release: 0.1" 

echo "checking config file"
if [ -f $ULFS_CONFIG_FILE ]
then
echo "loading config file $ULFS_CONFIG_FILE..."
. $ULFS_CONFIG_FILE
fi
#Creating log directory
mkdir -p /var/log/ulfs-packages/Linux-PAM/
#Saving start timestamp
date +%s > /var/log/ulfs-packages/Linux-PAM/start.time
#Going to source directory...
cd /sources
#Saving downloading timestamp
date +%s > /var/log/ulfs-packages/Linux-PAM/download.time
#Downloading source package archive...
wget --no-check-certificate -nc https://umvirt.com/linux/downloads/0.1/packages/l/Linux-PAM-1.3.0.tar.bz2.md5sum
wget --no-check-certificate -nc https://umvirt.com/linux/downloads/0.1/packages/l/Linux-PAM-1.3.0.tar.bz2
#Checking source package file existance
if [ ! -f Linux-PAM-1.3.0.tar.bz2 ]; then
echo "Error: Can't find Linux-PAM-1.3.0.tar.bz2. Exiting!"
exit
fi
#Checking source package file checksum
if [ -f Linux-PAM-1.3.0.tar.bz2.md5sum ]; then
    MD5=`LANG=C md5sum -c Linux-PAM-1.3.0.tar.bz2.md5sum | grep OK`
    if [ "$MD5" == "" ] ; then
    echo "Error: Checksum of Linux-PAM-1.3.0.tar.bz2 is wrong. Exiting!"
    exit
    fi
fi
    #Saving cleanup timestamp
    date +%s > /var/log/ulfs-packages/Linux-PAM/cleanup.time
rm -rfv /sources/Linux-PAM-1.3.0/
#Saving extracting timestamp
date +%s > /var/log/ulfs-packages/Linux-PAM/unpack.time
#Extracting tar source package archive with default parameters...
tar -xf Linux-PAM-1.3.0.tar.bz2
#Checking package directory size after unpack...
du -s Linux-PAM-1.3.0 | awk 'NR==1 {print $1}' > /var/log/ulfs-packages/Linux-PAM/unpack.size 
#Going to source package directory...
cd Linux-PAM-1.3.0
#Saving configuration timestamp
date +%s > /var/log/ulfs-packages/Linux-PAM/configure.time
#Sleep 1 second
sleep 1
#Running configuration script...
./configure --prefix=/usr                    \
            --sysconfdir=/etc                \
            --libdir=/usr/lib                \
            --disable-regenerate-docu        \
            --enable-securedir=/lib/security \
            --docdir=/usr/share/doc/Linux-PAM-1.3.0
#Saving build timestamp
date +%s > /var/log/ulfs-packages/Linux-PAM/build.time
#Running build script...
make
#Saving install timestamp
date +%s > /var/log/ulfs-packages/Linux-PAM/install.time
#Running install script...
cat > ulfs_install.sh << EOIS
rm -fv /etc/pam.d/*

install -v -m755 -d /etc/pam.d &&

make install &&
chmod -v 4755 /sbin/unix_chkpwd &&

for file in pam pam_misc pamc
do
  mv -v /usr/lib/lib\${file}.so.* /lib &&
  ln -sfv ../../lib/\$(readlink /usr/lib/lib\${file}.so) /usr/lib/lib\${file}.so
done

install -vdm755 /etc/pam.d &&
cat > /etc/pam.d/system-account << "EOF" &&
# Begin /etc/pam.d/system-account

account   required    pam_unix.so

# End /etc/pam.d/system-account
EOF

cat > /etc/pam.d/system-auth << "EOF" &&
# Begin /etc/pam.d/system-auth

auth      required    pam_unix.so

# End /etc/pam.d/system-auth
EOF

cat > /etc/pam.d/system-session << "EOF"
# Begin /etc/pam.d/system-session

session   required    pam_unix.so

# End /etc/pam.d/system-session
EOF

cat > /etc/pam.d/system-password << "EOF"
# Begin /etc/pam.d/system-password

# use sha512 hash for encryption, use shadow, and try to use any previously
# defined authentication token (chosen password) set by any prior module
password  required    pam_unix.so       sha512 shadow try_first_pass

# End /etc/pam.d/system-password
EOF

EOIS
USER=`whoami`
if [ "$USER" == "root" ] ; then 
cat ulfs_install.sh | bash 2>&1 | tee /var/log/ulfs-packages/Linux-PAM/install.log 
else
cat ulfs_install.sh | sudo bash 2>&1 | tee /var/log/ulfs-packages/Linux-PAM/install.log 
fi
#Saving finish timestamp
date +%s > /var/log/ulfs-packages/Linux-PAM/finish.time
#Checking package directory size after unpack...
cd /sources 
du -s Linux-PAM-1.3.0 | awk 'NR==1 {print $1}' > /var/log/ulfs-packages/Linux-PAM/install.size 
echo "ULFS package installation completed."
#Producing files list
echo "Looking for installed files..."
if [  -f /var/log/ulfs-packages/Linux-PAM/files.txt ]; then
rm /var/log/ulfs-packages/Linux-PAM/files.txt
fi
USER=`whoami`
if [ "$USER" == "root" ] ; then 
find /bin -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
find /sbin -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
find /usr -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
find /etc -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
find /opt -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
find /lib -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
find /lib64 -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
find /var -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time \! -path "/var/log/ulfs-packages/Linux-PAM/*" >> /var/log/ulfs-packages/Linux-PAM/files.txt
else
sudo find /bin -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
sudo find /sbin -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
sudo find /usr -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
sudo find /etc -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
sudo find /opt -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
sudo find /lib -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
sudo find /lib64 -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time >> /var/log/ulfs-packages/Linux-PAM/files.txt
sudo find /var -type f -newer /var/log/ulfs-packages/Linux-PAM/configure.time \! -newer /var/log/ulfs-packages/Linux-PAM/finish.time \!  -path "/var/log/ulfs-packages/Linux-PAM/*" >> /var/log/ulfs-packages/Linux-PAM/files.txt
fi
#Marking package as installed...
mkdir -p /var/cache/ulfs-packages
USER=`whoami`
if [ "$USER" == "root" ] ; then 
touch /var/cache/ulfs-packages/Linux-PAM
else
sudo touch /var/cache/ulfs-packages/Linux-PAM
fi
#Calculate delta size
a=`cat /var/log/ulfs-packages/Linux-PAM/unpack.size`
b=`cat /var/log/ulfs-packages/Linux-PAM/install.size`
c=$(($b-$a))
echo $c > /var/log/ulfs-packages/Linux-PAM/delta.size 
#Calculate prepare time
a=`cat /var/log/ulfs-packages/Linux-PAM/start.time`
b=`cat /var/log/ulfs-packages/Linux-PAM/configure.time`
dp=$(($b-$a))
#Calculate download time
a=`cat /var/log/ulfs-packages/Linux-PAM/download.time`
b=`cat /var/log/ulfs-packages/Linux-PAM/unpack.time`
dd=$(($b-$a))
#Calculate delta time
a=`cat /var/log/ulfs-packages/Linux-PAM/configure.time`
b=`cat /var/log/ulfs-packages/Linux-PAM/finish.time`
db=$(($b-$a))
echo $db > /var/log/ulfs-packages/Linux-PAM/delta.time 
#Report
echo ""
echo "ULFS Package installation report"
echo "================================"
echo "Package: Linux-PAM" 
echo "Release: 0.1" 
echo "Build size: $c" 
echo "Prepare time: $dp sec." 
echo "Download time: $dd sec." 
echo "Build time: $db sec." 

#End of script