#!/bin/bash
#===========================
# UMVIRT LINUX FROM SCRATCH 
#===========================
# Compilation script.
# Network mode. 
#===========================
# Release: 0.1
# Package: sudo
#===========================
# DB commit: d35a620850806ab581b32cb34d268a904c9c0a5f
# APP commit: f0568a86eced844506f88e1faa2e7a1c73783ddf
#===========================

echo "ULFS Package installation start"
echo "==============================="
echo "Package: sudo" 
echo "Release: 0.1" 
echo "Install with chimp: NO"

downloadFile()
{
local filename=$1
echo "Downloading $filename ..."
if [[ "$ULFS_DOWNLOAD_APP" == "curl" ]]; then 
curl -k -O $filename 
else
wget --no-check-certificate -nc $filename 
fi
}

echo "loading environment settings(profile)"
. /etc/profile
echo "checking config file"
if [ -f $ULFS_CONFIG_FILE ]
then
echo "loading config file $ULFS_CONFIG_FILE..."
. $ULFS_CONFIG_FILE
fi
#Creating log directory
mkdir -p /var/log/ulfs-packages/sudo/
#Saving start timestamp
date +%s > /var/log/ulfs-packages/sudo/start.time
#Going to source directory...
cd /sources
#Checking dependances...
      #Checking Linux-PAM...
      if [ ! -f /var/cache/ulfs-packages/Linux-PAM ]; then
           echo "Dependance \"Linux-PAM\" not found. Trying to install...";
if [[ "$ULFS_DOWNLOAD_APP" == "curl" ]]; then 
           curl https://umvirt.com/linux/packages//0.1/Linux-PAM/install -k | bash
else
           wget --no-check-certificate https://umvirt.com/linux/packages//0.1/Linux-PAM/install -O - | bash
fi
           if [ ! -f /var/cache/ulfs-packages/Linux-PAM ]; then
	             echo "Dependance \"Linux-PAM\" is not installed. Exiting..."
               exit
           fi
      fi
#Saving downloading timestamp
date +%s > /var/log/ulfs-packages/sudo/download.time
#Downloading source package archive...
downloadFile https://umvirt.com/linux/downloads/0.1/packages/s/sudo-1.8.23.tar.gz.md5sum
downloadFile https://umvirt.com/linux/downloads/0.1/packages/s/sudo-1.8.23.tar.gz
#Checking source package file existance
if [ ! -f sudo-1.8.23.tar.gz ]; then
echo "Error: Can't find sudo-1.8.23.tar.gz. Exiting!"
exit
fi
#Checking source package file checksum
if [ -f sudo-1.8.23.tar.gz.md5sum ]; then
    MD5=`LANG=C md5sum -c sudo-1.8.23.tar.gz.md5sum | grep OK`
    if [ "$MD5" == "" ] ; then
    echo "Error: Checksum of sudo-1.8.23.tar.gz is wrong. Exiting!"
    exit
    fi
fi
    #Saving cleanup timestamp
    date +%s > /var/log/ulfs-packages/sudo/cleanup.time
rm -rfv /sources/sudo-1.8.23/
#Saving extracting timestamp
date +%s > /var/log/ulfs-packages/sudo/unpack.time
#Extracting tar source package archive with default parameters...
tar -xf sudo-1.8.23.tar.gz
#Checking package directory size after unpack...
du -s sudo-1.8.23 | awk 'NR==1 {print $1}' > /var/log/ulfs-packages/sudo/unpack.size 
#Going to source package directory...
cd sudo-1.8.23
#Saving configuration timestamp
date +%s > /var/log/ulfs-packages/sudo/configure.time
#Sleep 1 second
sleep 1
#Running configuration script...
./configure --prefix=/usr              \
            --libexecdir=/usr/lib      \
            --with-secure-path         \
            --with-all-insults         \
            --with-env-editor          \
            --docdir=/usr/share/doc/sudo-1.8.23 \
            --with-passprompt="[sudo] password for %p: "
#Saving build timestamp
date +%s > /var/log/ulfs-packages/sudo/build.time
#Running build script...
make
#Saving install timestamp
date +%s > /var/log/ulfs-packages/sudo/install.time
#Running install script...
cat > ulfs_install.sh << EOIS
make install &&
ln -sfv libsudo_util.so.0.0.0 /usr/lib/sudo/libsudo_util.so.0
groupadd -g 100 sudo
groupadd -g 101 admin

useradd -u 801 -g 101 \
-G admin,sudo \
-d /home/maintainer \
-p "ulfs" \
maintainer 

mkdir -v /home/maintainer
chown maintainer /home/maintainer
chown -R 801:101 /var/cache/ulfs-packages
chown -R 801:101 /var/log/ulfs-packages
chown -R 801:101 /sources

cat > /etc/sudoers << "EOF"
User_Alias ADMIN = maintainer

root ALL=(ALL:ALL) ALL


# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL

# Allow members of group sudo to execute any command
%sudo ALL=(ALL:ALL) ALL

# Allow people in group ADMIN to run all commands without a password
ADMIN       ALL = NOPASSWD: ALL

EOF

cat > /etc/pam.d/sudo << "EOF"
# Begin /etc/pam.d/sudo

# include the default auth settings
auth      include     system-auth

# include the default account settings
account   include     system-account

# Set default environment variables for the service user
session   required    pam_env.so

# include system session defaults
session   include     system-session

# End /etc/pam.d/sudo
EOF
chmod 644 /etc/pam.d/sudo
EOIS
echo "/sbin/ldconfig" >> ulfs_install.sh
USER=`whoami`
if [ "$USER" == "root" ] ; then 
cat ulfs_install.sh | bash 2>&1 | tee /var/log/ulfs-packages/sudo/install.log 
else
cat ulfs_install.sh | sudo bash 2>&1 | tee /var/log/ulfs-packages/sudo/install.log 
fi
#Saving finish timestamp
date +%s > /var/log/ulfs-packages/sudo/finish.time
#Checking package directory size after unpack...
cd /sources 
du -s sudo-1.8.23 | awk 'NR==1 {print $1}' > /var/log/ulfs-packages/sudo/install.size 
echo "ULFS package installation completed."
#Producing files list
echo "Looking for installed files..."
if [  -f /var/log/ulfs-packages/sudo/files.txt ]; then
rm /var/log/ulfs-packages/sudo/files.txt
fi
USER=`whoami`
if [ "$USER" == "root" ] ; then 
find /bin -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time >> /var/log/ulfs-packages/sudo/files.txt
find /sbin -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time >> /var/log/ulfs-packages/sudo/files.txt
find /usr -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time >> /var/log/ulfs-packages/sudo/files.txt
find /etc -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time \! -path /etc/ld.so.cache >> /var/log/ulfs-packages/sudo/files.txt
find /opt -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time >> /var/log/ulfs-packages/sudo/files.txt
find /lib -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time >> /var/log/ulfs-packages/sudo/files.txt
find /lib64 -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time >> /var/log/ulfs-packages/sudo/files.txt
find /var -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time \! -path "/var/log/ulfs-packages/sudo/*" \! -path /var/cache/ldconfig/aux-cache >> /var/log/ulfs-packages/sudo/files.txt
else
sudo find /bin -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time >> /var/log/ulfs-packages/sudo/files.txt
sudo find /sbin -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time >> /var/log/ulfs-packages/sudo/files.txt
sudo find /usr -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time >> /var/log/ulfs-packages/sudo/files.txt
sudo find /etc -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time \! -path /etc/ld.so.cache >> /var/log/ulfs-packages/sudo/files.txt
sudo find /opt -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time >> /var/log/ulfs-packages/sudo/files.txt
sudo find /lib -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time >> /var/log/ulfs-packages/sudo/files.txt
sudo find /lib64 -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time >> /var/log/ulfs-packages/sudo/files.txt
sudo find /var -type f -newer /var/log/ulfs-packages/sudo/configure.time \! -newer /var/log/ulfs-packages/sudo/finish.time \!  -path "/var/log/ulfs-packages/sudo/*"  \! -path /var/cache/ldconfig/aux-cache >> /var/log/ulfs-packages/sudo/files.txt
fi
#Marking package as installed...
mkdir -p /var/cache/ulfs-packages
USER=`whoami`
if [ "$USER" == "root" ] ; then 
touch /var/cache/ulfs-packages/sudo
else
sudo touch /var/cache/ulfs-packages/sudo
fi
#Calculate delta size
a=`cat /var/log/ulfs-packages/sudo/unpack.size`
b=`cat /var/log/ulfs-packages/sudo/install.size`
c=$(($b-$a))
echo $c > /var/log/ulfs-packages/sudo/delta.size 
#Calculate prepare time
a=`cat /var/log/ulfs-packages/sudo/start.time`
b=`cat /var/log/ulfs-packages/sudo/configure.time`
dp=$(($b-$a))
#Calculate download time
a=`cat /var/log/ulfs-packages/sudo/download.time`
b=`cat /var/log/ulfs-packages/sudo/unpack.time`
dd=$(($b-$a))
#Calculate delta time
a=`cat /var/log/ulfs-packages/sudo/configure.time`
b=`cat /var/log/ulfs-packages/sudo/finish.time`
db=$(($b-$a))
echo $db > /var/log/ulfs-packages/sudo/delta.time 
#Report
echo ""
echo "ULFS Package installation report"
echo "================================"
echo "Package: sudo" 
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