#!/bin/bash
set -e

# use the locale C.UTF-8
unset LC_ALL
LC_CTYPE=C.UTF-8
export LC_CTYPE

storepass='changeit'
if [ -f /etc/default/cacerts ]; then
    . /etc/default/cacerts
fi

arch=`dpkg --print-architecture`
JAR=/usr/share/ca-certificates-java/ca-certificates-java.jar

nsslib_name()
{
    if dpkg --assert-multi-arch 2>/dev/null; then
        echo "libnss3:${arch}"
    else
        echo "libnss3"
    fi
}

setup_path()
{
    for jvm in java-7-openjdk-$arch java-7-openjdk \
               oracle-java7-jre-$arch oracle-java7-server-jre-$arch oracle-java7-jdk-$arch \
               java-8-openjdk-$arch java-8-openjdk \
               oracle-java8-jre-$arch oracle-java8-server-jre-$arch oracle-java8-jdk-$arch \
               java-9-openjdk-$arch java-9-openjdk \
               oracle-java9-jre-$arch oracle-java9-server-jre-$arch oracle-java9-jdk-$arch; do
    if [ -x /usr/lib/jvm/$jvm/bin/java ]; then
        break
        fi
    done
    export JAVA_HOME=/usr/lib/jvm/$jvm
    PATH=$JAVA_HOME/bin:$PATH
}

first_install()
{
    if which dpkg-query >/dev/null; then
        nsspkg=$(dpkg-query -L "$(nsslib_name)" | sed -n 's,\(.*\)/libnss3\.so$,\1,p'|head -n 1)
        nsscfg=/etc/${jvm%-$arch}/security/nss.cfg
        nssjdk=$(test ! -f $nsscfg || sed -n '/nssLibraryDirectory/s/.*= *\(.*\)/\1/p' $nsscfg)
        if [ -n "$nsspkg" ] && [ -n "$nssjdk" ] && [ "$nsspkg" != "$nssjdk" ]; then
            ln -sf $nsspkg/libnss3.so $nssjdk/libnss3.so
        fi
    fi

    # Forcibly remove diginotar cert (LP: #920758)
    if [ -n "$FIXOLD" ]; then
        printf -- "-diginotar_root_ca\n-diginotar_root_ca_pem\n" | \
        java -Xmx64m -jar $JAR -storepass "$storepass"
    fi

    find /etc/ssl/certs -name \*.pem | \
    while read filename; do
        alias=$(basename $filename .pem | tr A-Z a-z | tr -cs a-z0-9 _)
        alias=${alias%*_}
        if [ -n "$FIXOLD" ]; then
            echo "-${alias}"
            echo "-${alias}_pem"
        fi
        echo "+${filename}"
    done | \
    java -Xmx64m -jar $JAR -storepass "$storepass"
    echo "done."
}

do_cleanup()
{
    [ -z "$temp_jvm_cfg" ] || rm -f $temp_jvm_cfg
    if [ -n "$nsspkg" ] && [ -n "$nssjdk" ] && [ "$nsspkg" != "$nssjdk" ]
    then
        rm -f $nssjdk/libnss3.so
    fi
}

case "$1" in
    configure)
        if dpkg --compare-versions "$2" lt "20110912ubuntu6"; then
            FIXOLD="true"
            if [ -e /etc/ssl/certs/java/cacerts ]; then
                cp -f /etc/ssl/certs/java/cacerts /etc/ssl/certs/java/cacerts.dpkg-old
            fi
        fi
        if [ -z "$2" -o -n "$FIXOLD" ]; then
            setup_path

            if ! mountpoint -q /proc; then
                echo >&2 "the keytool command requires a mounted proc fs (/proc)."
                exit 1
            fi

            temp_jvm_cfg=
            if [ ! -f /etc/${jvm%-$arch}/jvm-$arch.cfg ]; then
                # the jre is not yet configured, but jvm.cfg is needed to run it
                temp_jvm_cfg=/etc/${jvm%-$arch}/jvm-$arch.cfg
                mkdir -p /etc/${jvm%-$arch}
                if [ "$arch" = "armhf" ]; then
	                printf -- "-client KNOWN\n-server ALIASED_TO -client\n" > $temp_jvm_cfg
                else
	                printf -- "-server KNOWN\n" > $temp_jvm_cfg
                fi
            fi

            trap do_cleanup EXIT
            first_install
        fi
        chmod 600 /etc/default/cacerts || true
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)
    ;;

    *)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac



exit 0