post_install.sh

#!/bin/sh 
#jinstall - Command line script to easily add new java directories to
#'alternatives'. This sets the java as default, and you can switch your
#default java with update-java-alternatives
#
#Copyright 2014 Bruce.Ingalls at gmail & Alin Andrei <webupd8@gmail.com>
#GPL v3 Affero license at http://www.gnu.org/
#Downloads & discussion at http://www.webupd8.org/
#Tested on Ubuntu Oneiric; should require few changes for other modern Unix systems
#Currently tested only with JDK, not JRE.
# Not fully internationalized, including japanese man pages

set -e

VER='0.6alpha'

case $(dpkg --print-architecture) in
'i386'|'i586'|'i686') arch=i386; dld=i586;
  SHA256SUM_TGZ="9a8e8fcf7b6fbe53d6312195be87ce00f3beaab9dfbaa020b96e305174f39e1f" #must be modified for each release
  ;; 
'amd64'  ) arch=amd64; dld=x64;
  SHA256SUM_TGZ="187eda2235f812ddb35c352b5f9aa6c5b184d611c2c9d0393afb8031d8198974" #must be modified for each release 
  ;; 
arm*      )
  arch=arm
	if [ `uname -m` = "armv7l" ] || [ `uname -m` = "armv6l" ]; then
		if [ -x /usr/bin/readelf ] ; then
			HARDFLOAT=`readelf -A /proc/self/exe | grep Tag_ABI_VFP_args`
			if [ -z "$HARDFLOAT" ]; then
				# Softfloat
				echo "Oracle Java 8 doesn't support ARM v6/v7 softfloat ABI."
				#dld='arm-vfp-sflt'
				#SHA256SUM_TGZ="5026a8f2eea8d350ea6ed7cfb8496b571ec9c1e43db82750a3ca8dc02569076e"
			else
				# Hardfloat
				dld='arm32-vfp-hflt'
				SHA256SUM_TGZ="add3f9685161337fd31e433ea9b19231d6b40561dc40826057930fa2d76d7925" #must be modified for each release
			fi
		fi
	elif [ `uname -m` = "armv8l" ] || [ `uname -m` = "arm64" ] || [ `uname -m` = "aarch64" ]; then
		dld='arm64-vfp-hflt'
		SHA256SUM_TGZ="8fd6be278b1d312c53897de66e9bd2e6eb5ce0d5b62da8bbd9b1333dc190ed15" #must be modified for each release
	else
		echo "Oracle JDK 8 only supports ARM v6/v7/v8 hardfloat."
		arch=''
	fi
	;;
*         )
    echo "Please report to author unsupported platform '`uname -m`'.";
    echo "Proceeding without web browser plugin support";
    arch='';
esac

########Variables

if [ ! $arch = "arm" ]; then
	JAVA_VERSION=8u111 #must be modified for each release jdk-8u5-linux-x64.tar.gz
	J_DIR=jdk1.8.0_111 #must be modified for each release
	FILENAME=jdk-${JAVA_VERSION}-linux-${dld}.tar.gz
	PARTNER_URL=http://download.oracle.com/otn-pub/java/jdk/8u111-b14/$FILENAME #must be modified for each release
	for JAVA_VERSION_OLD2 in `seq 1 110`; do #must be modified for each release
	   FILENAMES_OLD2="jdk-8u${JAVA_VERSION_OLD2}-linux-${dld}*.tar.gz $FILENAMES_OLD2"
	done
else
	JAVA_VERSION=8u111 #must be modified for each release jdk-8-linux-arm-vfp-hflt.tar.gz
	J_DIR=jdk1.8.0_111 #must be modified for each release
	FILENAME=jdk-${JAVA_VERSION}-linux-${dld}.tar.gz
	PARTNER_URL=http://download.oracle.com/otn-pub/java/jdk/8u111-b14/$FILENAME #must be modified for each release
	for JAVA_VERSION_OLD1 in `seq 1 110`; do #must be modified for each release
		FILENAMES_OLD1="jdk-8u${JAVA_VERSION_OLD1}-linux-${dld}*.tar.gz $FILENAMES_OLD1 jdk-8-*.tar.gz"
	done
fi

for JAVA_VERSION_OLD in `seq 53 132`; do #must be modified for each release
  FILENAMES_OLD="jdk-8-ea-bin-b${JAVA_VERSION_OLD}-linux-${dld}-*.tar.gz $FILENAMES_OLD" #old name
  FILENAMES_OLD_N="jdk-8-fcs-bin-b${JAVA_VERSION_OLD}-linux-${dld}*.tar.gz $FILENAMES_OLD_N" #new name
  FILENAMES_OLD_NA="jdk-8-fcs-b${JAVA_VERSION_OLD}-linux-${dld}*.tar.gz $FILENAMES_OLD_NA" #arm
done

J_INSTALL_DIR=/usr/lib/jvm/java-8-oracle

########Create dirs
mkdir -p /var/cache/oracle-jdk8-installer
mkdir -p /usr/lib/jvm
mkdir -p /usr/lib/oracle-jdk8-installer-unpackdir
#without this, an error is displayed if the folder doesn't exist:
mkdir -p /usr/lib/mozilla/plugins
if [ $arch = "arm" ]; then
	#apparently this dir doesn't exist on some arm machines
	mkdir -p /usr/share/man/man1
fi

#############



. /usr/share/debconf/confmodule

fp_exit_with_error() {
	echo $1
	echo "Oracle JDK 8 is NOT installed."
	db_fset oracle-java8-installer/local seen false
	exit 1
}

fp_download_and_unpack() {

	cd /var/cache/oracle-jdk8-installer

	db_get oracle-java8-installer/local
	if [ -d "$RET" -a -f "$RET"/$FILENAME ]; then

		echo "Installing from local file $RET/$FILENAME"
		cp -f -p "$RET"/$FILENAME ${FILENAME}_TEMP
		mv -f ${FILENAME}_TEMP $FILENAME
	else # no local file

		# use apt proxy
		APT_PROXIES=$(apt-config shell \
		http_proxy Acquire::http::Proxy \
		https_proxy Acquire::https::Proxy \
		ftp_proxy Acquire::ftp::Proxy \
		dl_direct Acquire::http::Proxy::download.oracle.com \
		dl_direct Acquire::http::Proxy::*.java.net \
		)

		if [ -n "$APT_PROXIES" ]; then
			eval export $APT_PROXIES
		fi

    if [ "$dl_direct" = "DIRECT" ]; then
        unset http_proxy
        unset https_proxy
        unset ftp_proxy
    fi

		# if /var/cache/oracle-jdk8-installer/wgetrc exists, use it for downloading java
		if [ -f /var/cache/oracle-jdk8-installer/wgetrc ]; then

			# downloading jdk8
			echo "Using wget settings from /var/cache/oracle-jdk8-installer/wgetrc"
			echo "Downloading Oracle Java 8..."
			WGETRC=wgetrc wget --continue --no-check-certificate -O $FILENAME --header "Cookie: oraclelicense=a" $PARTNER_URL \
				|| fp_exit_with_error "download failed"
			echo "Download done."

		#if it's not, use the settings below (which also creates /var/cache/oracle-jdk8-installer/wgetrc)
		else

			# setting wget options
			:> wgetrc
			echo "noclobber = off" >> wgetrc
			echo "dir_prefix = ." >> wgetrc
			echo "dirstruct = off" >> wgetrc
			echo "verbose = on" >> wgetrc
			echo "progress = dot:mega" >> wgetrc
			echo "tries = 5" >> wgetrc

			# downloading jdk8
			echo "No /var/cache/oracle-jdk8-installer/wgetrc file found."
			echo "Creating /var/cache/oracle-jdk8-installer/wgetrc and"
			echo "using default oracle-java8-installer wgetrc settings for it."
			echo "Downloading Oracle Java 8..."
			WGETRC=wgetrc wget --continue --no-check-certificate -O $FILENAME --header "Cookie: oraclelicense=a" $PARTNER_URL \
				|| fp_exit_with_error "download failed"
			echo "Download done."

		fi

	fi # end if local file

	# Removing outdated cached downloads
	echo "Removing outdated cached downloads..."
	rm -vf $FILENAMES_OLD
	rm -vf $FILENAMES_OLD1
	rm -vf $FILENAMES_OLD2
	rm -vf $FILENAMES_OLD_N
	rm -vf $FILENAMES_OLD_NA
	if [ ! $arch = "arm" ]; then
		rm -vf jdk-8-linux* #temp
	fi

	# verify SHA256 checksum of (copied or downloaded) tarball
	rm -rf jdk*/
        echo "$SHA256SUM_TGZ  $FILENAME" | sha256sum -c > /dev/null 2>&1 \
		|| fp_exit_with_error "sha256sum mismatch $FILENAME"

	# unpacking and checking the plugin
	tar xzf $FILENAME || fp_exit_with_error "cannot unpack jdk8"
}

OLDDIR=/usr/lib/oracle-jdk8-installer-unpackdir
NEWDIR=/var/cache/oracle-jdk8-installer

safe_move() {
	[ ! -f $OLDDIR/$1 ] || [ -f $NEWDIR/$1 ] || mv $OLDDIR/$1 $NEWDIR/$1 2> /dev/null || true
	[ ! -f $OLDDIR/$1 ] || [ ! -f $NEWDIR/$1 ] || rm -f $OLDDIR/$1 2> /dev/null || true
}

fp_download_and_unpack

# Copy JDK to the right dir
mv $J_DIR java-8-oracle
rm -rf /usr/lib/jvm/java-8-oracle
cp -rf java-8-oracle /usr/lib/jvm/

# There's no javaws on arm
if [ ! $arch = "arm" ]; then
	# Install javaws-wrapper.sh
	mv $J_INSTALL_DIR/jre/bin/javaws $J_INSTALL_DIR/jre/bin/javaws.real
	install -m 755 javaws-wrapper.sh $J_INSTALL_DIR/jre/bin/javaws
fi

# Install jar.binfmt
install -m 755 jar.binfmt $J_INSTALL_DIR/jre/lib/jar.binfmt

# Install OpenJDK's font config
install -m 755 fontconfig.Ubuntu.properties $J_INSTALL_DIR/jre/lib/

# Clean up
rm -rf java-8-oracle

# To add when an older version exists:
# safe_move jdk-7u2-linux-x64.tar.gz #must be modified for each release
# safe_move jdk-7u2-linux-i586.tar.gz #must be modified for each release
rmdir $OLDDIR 2> /dev/null || true
#remove previous versions, if they exist


db_fset oracle-java8-installer/local seen false

# This step is optional, recommended, and affects code below.
ls $J_INSTALL_DIR/man/man1/*.1 >/dev/null 2>&1 && \
  gzip -9 $J_INSTALL_DIR/man/man1/*.1 >/dev/null 2>&1

#Increment highest version by 1.
#Also assumes all Java helper programs (javaws, jcontrol, etc) at same version as java.
#These helpers should be slaves, or in the same path as java; thus, a reasonable assumption.

LATEST=1
LATEST=$((`LANG=C update-alternatives --display java | grep ^/ | sed -e 's/.* //g' | sort -n | tail -1`+1))
PRIORITY=1081

#create .java-8-oracle.jinfo file header:
if [ -e /usr/lib/jvm/.java-8-oracle.jinfo ]; then
   rm -f /usr/lib/jvm/.java-8-oracle.jinfo
fi
echo "name=java-8-oracle
alias=java-8-oracle
priority=$PRIORITY
section=non-free
" > /usr/lib/jvm/.java-8-oracle.jinfo


#link JRE files
for f in $J_INSTALL_DIR/jre/bin/*; do
    name=`basename $f`;
    if [ ! -f "/usr/bin/$name" -o -L "/usr/bin/$name" ]; then  #some files, like jvisualvm might not be links
        if [ -f "$J_INSTALL_DIR/man/man1/$name.1.gz" ]; then
					if [ ! $arch = "arm" ]; then
            update-alternatives --install /usr/bin/$name $name $J_INSTALL_DIR/jre/bin/$name $PRIORITY --slave /usr/share/man/man1/$name.1.gz $name.1.gz $J_INSTALL_DIR/man/man1/$name.1.gz
            echo "jre $name $J_INSTALL_DIR/jre/bin/$name" >> /usr/lib/jvm/.java-8-oracle.jinfo
					else
						# There's no javaws, jvisualvm or jmc on arm
						[ ! $name = "javaws" ] && [ ! $name = "jvisualvm" ] && [ ! $name = "jmc" ] && update-alternatives --install /usr/bin/$name $name $J_INSTALL_DIR/jre/bin/$name $PRIORITY --slave /usr/share/man/man1/$name.1.gz $name.1.gz $J_INSTALL_DIR/man/man1/$name.1.gz
						[ ! $name = "javaws" ] && [ ! $name = "jvisualvm" ] && [ ! $name = "jmc" ] && echo "jre $name $J_INSTALL_DIR/jre/bin/$name" >> /usr/lib/jvm/.java-8-oracle.jinfo
					fi
         else #no man pages available
            # [ ! $name = "javaws.real" ] = skip javaws.real     
            [ ! $name = "javaws.real" ] && update-alternatives --install /usr/bin/$name $name $J_INSTALL_DIR/jre/bin/$name $PRIORITY
            [ ! $name = "javaws.real" ] && echo "jre $name $J_INSTALL_DIR/jre/bin/$name" >> /usr/lib/jvm/.java-8-oracle.jinfo
         fi
    fi
done


#link JRE not in jre/bin
[ -f $J_INSTALL_DIR/jre/lib/jexec ]    && update-alternatives --install /usr/bin/jexec    jexec    $J_INSTALL_DIR/jre/lib/jexec    $PRIORITY --slave /usr/share/binfmts/jar jexec-binfmt $J_INSTALL_DIR/jre/lib/jar.binfmt && echo "jre jexec $J_INSTALL_DIR/jre/lib/jexec" >> /usr/lib/jvm/.java-8-oracle.jinfo

#This will issue ignorable warnings for alternatives that are not part of a group
#Link JDK files with/without man pages
if [ -d "$J_INSTALL_DIR/man/man1" ];then
    for f in $J_INSTALL_DIR/man/man1/*; do
        name=`basename $f .1.gz`;
        #some files, like jvisualvm might not be links. Further assume this for corresponding man page
        if [ ! -f "/usr/bin/$name" -o -L "/usr/bin/$name" ]; then
            if [ ! -f "$J_INSTALL_DIR/man/man1/$name.1.gz" ]; then
                name=`basename $f .1`;          #handle any legacy uncompressed pages
            fi
          		if [ ! -e $J_INSTALL_DIR/jre/bin/$name ]; then #don't link already linked JRE files
								if [ ! $arch = "arm" ]; then
              		update-alternatives --install /usr/bin/$name $name $J_INSTALL_DIR/bin/$name $PRIORITY --slave /usr/share/man/man1/$name.1.gz $name.1.gz $J_INSTALL_DIR/man/man1/$name.1.gz
              		echo "jdk $name $J_INSTALL_DIR/bin/$name" >> /usr/lib/jvm/.java-8-oracle.jinfo
								else
									# There's no javaws, jvisualvm or jmc on arm
									[ ! $name = "javaws" ] && [ ! $name = "jvisualvm" ] && [ ! $name = "jmc" ] && update-alternatives --install /usr/bin/$name $name $J_INSTALL_DIR/bin/$name $PRIORITY --slave /usr/share/man/man1/$name.1.gz $name.1.gz $J_INSTALL_DIR/man/man1/$name.1.gz
									[ ! $name = "javaws" ] && [ ! $name = "jvisualvm" ] && [ ! $name = "jmc" ] && echo "jdk $name $J_INSTALL_DIR/bin/$name" >> /usr/lib/jvm/.java-8-oracle.jinfo
								fi
          		fi
        fi
    done

else  #no man pages available
    for f in $J_INSTALL_DIR/bin/*; do
        name=`basename $f`;
        if [ ! -f "/usr/bin/$name" -o -L "/usr/bin/$name" ]; then  #some files, like jvisualvm might not be links
            if [ ! -e $J_INSTALL_DIR/jre/bin/$name ]; then #don't link already linked JRE files
                update-alternatives --install /usr/bin/$name $name $J_INSTALL_DIR/bin/$name $PRIORITY
                echo "jdk $name $J_INSTALL_DIR/bin/$name" >> /usr/lib/jvm/.java-8-oracle.jinfo
            fi
        fi
    done
fi

# Hide javaws and jvisualvm desktop files on arm since these files don't exist on this architecture
if [ $arch = "arm" ]; then
echo "NoDisplay=true" >> /usr/share/applications/JB-javaws-jdk8.desktop
echo "NoDisplay=true" >> /usr/share/applications/JB-jvisualvm-jdk8.desktop
fi

# Use cacerts form ca-certificates-java if it's installed:
if [ -e /etc/ssl/certs/java/cacerts ]; then
  cd /usr/lib/jvm/java-8-oracle/jre/lib/security
  mv cacerts cacerts.original
  ln -s /etc/ssl/certs/java/cacerts .
fi

# Place security config files in /etc so they are not overwritten on upgrade
mkdir -p /etc/java-8-oracle/security
for configfile in blacklist blacklisted.certs java.policy java.security javaws.policy trusted.libraries
do
	if [ ! -e /etc/java-8-oracle/security/"$configfile" ] && [ -e /usr/lib/jvm/java-8-oracle/jre/lib/security/"$configfile" ]; then
		mv /usr/lib/jvm/java-8-oracle/jre/lib/security/"$configfile" /etc/java-8-oracle/security/
	else
		rm -f /usr/lib/jvm/java-8-oracle/jre/lib/security/"$configfile"
	fi
done
for configfile in blacklist blacklisted.certs java.policy java.security javaws.policy trusted.libraries
do
	if [ ! -e /usr/lib/jvm/java-8-oracle/jre/lib/security/"$configfile" ] && [ -e /etc/java-8-oracle/security/"$configfile" ]; then
		ln -s /etc/java-8-oracle/security/"$configfile" /usr/lib/jvm/java-8-oracle/jre/lib/security/
	fi
done

# register binfmt; ignore errors, the alternative may already be
# registered by another JRE.
if which update-binfmts >/dev/null && [ -r /usr/share/binfmts/jar ]; then
    update-binfmts --package oracle-java8 --import jar || true
fi

# Install Firefox (and compatible) plugin. $arch will be empty for unknown platform
# No plugin for arm architecture yet
[ -f $J_INSTALL_DIR/jre/lib/$arch/libnpjp2.so ] && \
	update-alternatives --install /usr/lib/mozilla/plugins/libjavaplugin.so mozilla-javaplugin.so $J_INSTALL_DIR/jre/lib/$arch/libnpjp2.so $PRIORITY && \
	echo "plugin mozilla-javaplugin.so $J_INSTALL_DIR/jre/lib/$arch/libnpjp2.so" >> /usr/lib/jvm/.java-8-oracle.jinfo && \
echo "Oracle JRE 8 browser plugin installed"

echo "Oracle JDK 8 installed"
echo ""
echo "#####Important########"
echo "To set Oracle JDK8 as default, install the \"oracle-java8-set-default\" package."
echo "E.g.: sudo apt install oracle-java8-set-default."



exit 0

# vim: ts=2 sw=2