#!/bin/sh
#Author: Cappy of ubuntuforums.org
#Version: 1.00

#Make sure there is 1 and only 1 argument to the program
if [ $# -ne 1 ]; then
	echo "Usage: getlibs /path/to/binary"
	exit 127
fi

#Replaces a path with "~/" with "/home/username/"
binaryfile=`echo $1 | sed 's/^~/$HOME/'`
#Checks to see if a path begins with "/"
currentdirtest=`echo $binaryfile | grep -c ^/`

#If the path does not begin with "/"..
if [ $currentdirtest -eq 0 ]; then
	#Add the current working directory onto the file path
	binaryfile=`echo $PWD/$binaryfile`
fi

#Check to see if the binary is 32-bit or 64-bit
isit32bit=`file $binaryfile | grep -c "32-bit"`

architecture=`arch`
if [ "x86_64" = "$architecture" ]; then
	if [ $isit32bit -eq 1 ]; then
		#Must download the 32-bit library
		download=1
	else
		#use apt-get
		download=2
	fi
elif [ "amd64" = "$architecture" ]
then
	if [ $isit32bit -eq 1 ]; then
		#Must download the 32-bit library
		download=1
	else
		#use apt-get
		download=2
	fi
else
	if [ $isit32bit -eq 1 ]; then
		#use apt-get
		download=2
	else
		echo "This isn't a 32-bit application:"
		echo `file $binaryfile`
		exit 127
	fi
fi

#print program dependencies | find the ones missing | get only the library names | get rid of the ones starting with "./"
dependencylist=`ldd $binaryfile | grep "not found" | awk '{print $1}' | grep -v \./`
#get the first missing library out of the list | replace "+" with %2B
lib1=`echo $dependencylist | awk '{print $1}' | sed s/\+/%2B/g`
if [ "$lib1" = "" ]; then
	echo "This application isn't missing any dependencies!"
	exit 127
fi

if [ $download -eq 1 ]; then
	cd /tmp
	#If folder "/tmp/getlibs" exists ..
	if [ -d "/tmp/getlibs" ]; then
		sudo rm -rf /tmp/getlibs
	fi
	sudo mkdir getlibs
	cd getlibs
	#Look up library name | look for packages that are in usr/lib and no subdirectories | pull text out between double quotes (other than color:red) | get rid of double quotes
	address1=`wget -q -O- http://packages.ubuntu.com/cgi-bin/search_contents.pl?word=$lib1 | grep usr/lib/[^/]*[\s]*\< | grep -o \"[^\<]*\" | grep -v "color:" | sed s/\"//g`
	#Get the first package that matched
	address11=`echo $address1 | awk '{print $1}'`
	if [ "$address11" = "" ]; then
		echo "No match found for $lib1"
		sudo rm -rf /tmp/getlibs
		exit 127
	fi
	echo "Matched library $lib1 to $address11"
	#Find the link to the i386 download page for the library
	address2=`wget -q -O- http://packages.ubuntu.com$address11 | grep i386 | grep download.pl | grep -o \".*\" | sed s/\"//g`
	#Find the link for the i386 .deb file
	address3=`wget -q -O- http://packages.ubuntu.com$address2 | grep mirrors.kernel.org | grep -o http.*\.deb`
	echo "Downloading library .."
	sudo wget -q $address3
	#Get the filename of the deb
	filename=`echo $address3 | grep -o [^/]*\.deb`
	echo "File $filename downloaded!"
	#Extract the debian
	sudo dpkg -x $filename extracted
	promptfiles=`ls extracted/usr/lib/`
	echo "The following i386 libraries will be installed:"
	echo "$promptfiles"
	echo "Continue? (y/n)"
	read prompt
	case $prompt in
     		y|Y) ;;
		[yY][eE][sS]) ;;
     		n|N) sudo rm -rf /tmp/getlibs; exit 127 ;;
		[nN][oO]) sudo rm -rf /tmp/getlibs; exit 127 ;;
       		*) echo "Not understood. Aborting."; sudo rm -rf /tmp/getlibs; exit 127
	esac
	sudo cp /tmp/getlibs/extracted/usr/lib/* /usr/lib32/
	cd /tmp
	sudo rm -rf /tmp/getlibs
	#Call this script again
	getlibs $binaryfile
fi
if [ $download -eq 2 ]; then
	#Look up library name | look for packages that are in usr/lib and no subdirectories | pull text out between double quotes (other than color:red) | get rid of double quotes
	address1=`wget -q -O- http://packages.ubuntu.com/cgi-bin/search_contents.pl?word=$lib1 | grep usr/lib/[^/]*[\s]*\< | grep -o \"[^\<]*\" | grep -v "color:" | sed s/\"//g`
	#Get the first package that matched
	address11=`echo $address1 | awk '{print $1}'`
	#Get the filename of the deb
	filename=`echo $address11 | grep -o [^/]*$`
	if [ "$filename" = "" ]; then
		echo "No match found for $lib1"
		exit 127
	fi
	echo "Matched library $lib1 to $filename"
	echo "Installing missing library.."
	sudo apt-get install $filename
	#Call this script again
	getlibs $binaryfile
fi