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#!/bin/bash
# The affected files:
# dabfcb23d7bf9bf5a201c3f6ea9bfb2c local_policy.jar
# ef6e8eae7d1876d7f05d765d2c2e0529 US_export_policy.jar
# Internal variables
md5_this_localpolicy=dabfcb23d7bf9bf5a201c3f6ea9bfb2c
md5_this_uspolicy=ef6e8eae7d1876d7f05d765d2c2e0529
jcedir=/usr/share/java/java-jce_ustrength
jresecuritydir=/usr/lib/jvm/default-runtime/lib/security
_ext=java-jce_ustrength.backup
# 1 = Root
# 0 = other ID
check_root(){
if [ ${UID} -eq 0 ]; then
return 1
fi
return 0
}
# 0 = Unlimited Strength JCE Policy already installed
# 1 = Original JCE Policy installed
# 2 = Destination files don't exist
check_destinationfiles(){
if [ ! -e "${jresecuritydir}/US_export_policy.jar" -o ! -e "${jresecuritydir}/local_policy.jar" ];
then
return 2
fi
md5_uspolicy=$(md5sum ${jresecuritydir}/US_export_policy.jar | cut -d " " -f 1)
md5_localpolicy=$(md5sum ${jresecuritydir}/local_policy.jar | cut -d " " -f 1)
if [ "${md5_uspolicy}" == "${md5_this_uspolicy}" -a \
"${md5_localpolicy}" == "${md5_this_localpolicy}" ]; then
return 0
fi
return 1
}
install(){
check_destinationfiles
not_installed=$?
if [ "${not_installed}" -eq "1" ]; then
check_root
isroot=$?
if [ "${isroot}" -eq "0" ]; then
echo "You must be root for doing this operation."
exit 1
fi
echo -n "Installing Unlimited Strength JCE files..."
cp ${jresecuritydir}/US_export_policy.jar ${jresecuritydir}/US_export_policy.jar.${_ext} || return 1
cp ${jresecuritydir}/local_policy.jar ${jresecuritydir}/local_policy.jar.${_ext} || return 1
cp ${jcedir}/US_export_policy.jar ${jresecuritydir}/ || return 1
cp ${jcedir}/local_policy.jar ${jresecuritydir}/ || return 1
echo " installed."
else
echo "Unlimited Strength JCE files already installed."
fi
}
uninstall(){
check_destinationfiles
not_installed=$?
if [ "$not_installed" -eq "0" ]; then
check_root
isroot=$?
if [ "${isroot}" -eq "0" ]; then
echo "You must be root for doing this operation."
exit 0
fi
echo -n "Uninstalling Unlimited Strength JCE files..."
if [ ! -e "${jresecuritydir}/US_export_policy.jar.${_ext}" -a \
! -e "${jresecuritydir}/local_policy.jar.${_ext}" ]; then
echo "Previous backup of the files doesn't exist!"
echo "For uninstall, reinstall the jre package."
exit 0
fi
mv ${jresecuritydir}/US_export_policy.jar.${_ext} ${jresecuritydir}/US_export_policy.jar || return 1
mv ${jresecuritydir}/local_policy.jar.${_ext} ${jresecuritydir}/local_policy.jar || return 1
echo " uninstalled."
else
if [ -e "${jresecuritydir}/US_export_policy.jar.${_ext}" -a \
-e "${jresecuritydir}/local_policy.jar.${_ext}" ]; then
check_root
isroot=$?
if [ "${isroot}" -eq "0" ]; then
echo "You must be root for doing this operation."
exit 1
fi
echo -n "Deleting old regular JCE files backup..."
rm ${jresecuritydir}/US_export_policy.jar.${_ext} || return 1
rm ${jresecuritydir}/local_policy.jar.${_ext} || return 1
echo " deleted."
fi
if [ "${not_installed}" -eq "1" ]; then
echo "Regular JCE files already installed."
fi
fi
}
case "$1" in
install) install
;;
uninstall) uninstall
;;
*) echo "Usage $0: {install|uninstall}"
;;
esac
exit 0
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