pepperflashplugin-nonfree_1.3

#!/bin/sh

# Copyright (C) 2006-2013 Bart Martens <bartm@knars.be>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

set -e

return_0() {
    return 0
}

trap "return_0" 0

die_hard() {
    echo "ERROR: $1" >&2
    echo "More information might be available at:" >&2
    echo "  http://wiki.debian.org/PepperFlashPlayer" >&2
    exit 1
}

[ `whoami` = "root" ] || die_hard "must be root"

show_usage() {
    echo "Usage:"
    echo "  update-pepperflashplugin-nonfree --install"
    echo "  update-pepperflashplugin-nonfree --uninstall"
    echo "  update-pepperflashplugin-nonfree --status"
    echo "Additional options:"
    echo "  --verbose"
    echo "  --quiet"
    exit 1
}

getopt_temp=`getopt -o iusfvq --long install,uninstall,status,fast,verbose,quiet,beta,unstable,unverified \
    -n 'update-pepperflashplugin-nonfree' -- "$@"` || show_usage
eval set -- "$getopt_temp" || show_usage

ACTION=none
fast=no
verbose=no
quiet=no
variant=stable
verified=yes

while [ true ]
do
    case "$1" in
        -i|--install)
            ACTION="--install"
            shift
            ;;
        -u|--uninstall)
            ACTION="--uninstall"
            shift
            ;;
        -s|--status)
            ACTION="--status"
            shift
            ;;
        -f|--fast)
            fast=yes
            shift
            ;;
        -v|--verbose)
            verbose=yes
            shift
            ;;
        -q|--quiet)
            quiet=yes
            shift
            ;;
        --beta)
            variant=beta
            shift
            ;;
        --unstable)
            variant=unstable
            shift
            ;;
        --unverified)
            verified=no
            shift
            ;;
        --)
            shift
            break
            ;;
        *)
            echo "Internal error!"
            exit 1
            ;;
    esac
done

[ "$ACTION" != "none" -a $# -eq 0 ] || show_usage
[ "$quiet" != "yes" ] || verbose=no

[ "$verbose" != "yes" ] || echo "options : $getopt_temp"

latestfile=latest-$variant-verified.txt
[ "$verified" != "no" ] || latestfile=latest-$variant.txt

UNPACKDIR=`mktemp -d /tmp/pepperflashplugin-nonfree.XXXXXXXXXX` || die_hard "mktemp failed"
echo "$UNPACKDIR" | grep -q "^/tmp/pepperflashplugin-nonfree\." || die_hard "paranoia"
cd "$UNPACKDIR" || die_hard "cd failed"

[ "$verbose" != "yes" ] || echo "temporary directory: $UNPACKDIR"

do_cleanup() {
    [ "$verbose" != "yes" ] || echo "cleaning up temporary directory $UNPACKDIR ..."
    cd /
    echo "$UNPACKDIR" | grep -q "^/tmp/pepperflashplugin-nonfree\." || die_hard "paranoia"
    rm -rf "$UNPACKDIR"
}

die_hard_with_a_cleanup() {
    return_0
    do_cleanup
    die_hard "$1"
}

trap "die_hard_with_a_cleanup interrupted" INT

cachedir=/var/cache/pepperflashplugin-nonfree

wgetquiet=' -q '
wgetfast='-t 3 -T 15 '
wgetalways=' -nd -P . '
wgetprogress=' -v --progress=dot:default '

if [ "$ACTION" = "--install" -o "$ACTION" = "--status" ]
then
    installed=`strings /usr/lib/pepperflashplugin-nonfree/libpepflashplayer.so 2> /dev/null | grep LNX | cut -d ' ' -f 2 | sed -e "s/,/./g"`

    if [ -f $cachedir/$latestfile ]
    then
        chromeversion=`head -n 1 $cachedir/$latestfile`
        flashversion=`tail -n 1 $cachedir/$latestfile`
    else
        chromeversion=0
        flashversion=0
    fi

    mkdir -p var/lib/apt/lists var/cache/apt/archives etc/apt/apt.conf.d etc/apt/preferences.d

    cat > apt.conf <<-EOF
    Dir ".";
    Dir::Etc::trusted "pubring.gpg";
    Debug::NoLocking "true";
    EOF

    arch=`dpkg --print-architecture`

    cat > etc/apt/sources.list <<-EOF
    deb [arch=$arch] http://dl.google.com/linux/chrome/deb/ stable main
    EOF

    gpg --quiet --no-permission-warning --homedir "etc/apt" --import /usr/lib/pepperflashplugin-nonfree/pubkey-google.txt

    [ "$verbose" != "yes" ] || echo "doing apt-get update on google repository"
    stdouterr=`APT_CONFIG=apt.conf apt-get --quiet --quiet update 2>&1`
    [ "$stdouterr" = "" ] || die_hard_with_a_cleanup "failed to retrieve status information from google : $stdouterr"

    newchromeversion=`APT_CONFIG=apt.conf apt-cache show google-chrome-$variant | grep "^Version: " | sed -e "s,^Version: ,,"`
    poolfile=`APT_CONFIG=apt.conf apt-cache show google-chrome-$variant | grep "^Filename: " | sed -e "s,^Filename: ,,"`
    deburl="http://dl.google.com/linux/chrome/deb/$poolfile"
    debfile=`echo $poolfile|sed -e "s,.*/,,"`
    debsize=`APT_CONFIG=apt.conf apt-cache show google-chrome-$variant | grep "^Size: " | sed -e "s,^Size: ,,"`
    debsha1=`APT_CONFIG=apt.conf apt-cache show google-chrome-$variant | grep "^SHA1: " | sed -e "s,^SHA1: ,,"`
    debmd5=`APT_CONFIG=apt.conf apt-cache show google-chrome-$variant | grep "^MD5sum: " | sed -e "s,^MD5sum: ,,"`

    if [ "$chromeversion" = "$newchromeversion" ]
    then
        upstream=$flashversion
    else
        downloadurl="http://people.debian.org/~bartm/pepperflashplugin-nonfree/$latestfile"
        wgetoptions="$wgetquiet $wgetalways"
        [ "$fast" != "yes" ] || wgetoptions="$wgetoptions $wgetfast"

        [ "$verbose" != "yes" ] || echo "downloading $downloadurl"
        HOME=/root wget $wgetoptions $downloadurl || die_hard_with_a_cleanup "wget failed to download $downloadurl"

        mv $latestfile $cachedir

        chromeversion=`head -n 1 $cachedir/$latestfile`
        flashversion=`tail -n 1 $cachedir/$latestfile`

        upstream=$flashversion
    fi
fi

case "$ACTION" in

    --install)
        [ "$verbose" != "yes" ] || echo "selected action = $ACTION"

        [ "$upstream" != "" ] || die_hard_with_a_cleanup "failed to determine upstream version"

        if [ "$installed" != "" -a "$upstream" != "" -a "$installed" = "$upstream" ]
        then

            [ "$verbose" != "yes" ] || echo "upstream version $upstream is already installed"

        else

            if [ -f $cachedir/$debfile ]
            then
                cp -p $cachedir/$debfile .
            fi

            if [ ! -f $debfile ]
            then
                wgetoptions="$wgetalways $wgetprogress"
                [ "$quiet" != "yes" ] || wgetoptions="$wgetquiet $wgetalways"
                [ "$fast" != "yes" ] || wgetoptions="$wgetoptions $wgetfast"
                wgetoptions="$wgetoptions -O $UNPACKDIR/$debfile" # to change wget message : Saving to ...

                HOME=/root wget $wgetoptions $deburl || die_hard_with_a_cleanup "wget failed to download $deburl"

                [ `stat --format=%s $debfile` = "$debsize" ] || die_hard_with_a_cleanup "rejecting $debfile : wrong size"
                [ `sha1sum $debfile|sed -e "s, .*,,"` = "$debsha1" ] || die_hard_with_a_cleanup "rejecting $debfile : wrong sha1sum"
                [ `md5sum $debfile|sed -e "s, .*,,"` = "$debmd5" ] || die_hard_with_a_cleanup "rejecting $debfile : wrong md5sum"
            fi

            dpkg-deb -x $debfile unpackchrome

            sofile=unpackchrome/opt/google/chrome/PepperFlash/libpepflashplayer.so
            [ -e $sofile ] || sofile=unpackchrome/opt/google/chrome-unstable/PepperFlash/libpepflashplayer.so
            [ -e $sofile ] || sofile=unpackchrome/opt/google/chrome/PepperFlash/libpepflashplayer.so

            mv -f $sofile /usr/lib/pepperflashplugin-nonfree
            chown root:root /usr/lib/pepperflashplugin-nonfree/libpepflashplayer.so
            chmod 644 /usr/lib/pepperflashplugin-nonfree/libpepflashplayer.so
            mv $debfile $cachedir
        fi

        [ "$verbose" != "yes" ] || echo "end of action $ACTION"

        [ ! -e /etc/chromium/default ] || \
        grep -q pepperflashplugin-nonfree /etc/chromium/default \
            || cat /usr/lib/pepperflashplugin-nonfree/etc-chromium-default.txt >> /etc/chromium/default
        [ ! -e /etc/chromium-browser/default ] || \
        grep -q pepperflashplugin-nonfree /etc/chromium-browser/default \
            || cat /usr/lib/pepperflashplugin-nonfree/etc-chromium-default.txt >> /etc/chromium-browser/default

        ;;

    --uninstall)
        [ "$verbose" != "yes" ] || echo "selected action = $ACTION"

        [ "$verbose" != "yes" ] || echo "removing files ..."
        rm -f /usr/lib/pepperflashplugin-nonfree/libpepflashplayer.so

        [ "$verbose" != "yes" ] || echo "end of action $ACTION"

        ;;

    --status)
        [ "$verbose" != "yes" ] || echo "selected action = $ACTION"

        echo "Flash Player version installed on this system  : $installed"
        echo "Flash Player version available on upstream site: $upstream"

        [ "$verbose" != "yes" ] || echo "end of action $ACTION"

        ;;

    *)

        do_cleanup
        show_usage

        ;;

esac

do_cleanup

[ "$verbose" != "yes" ] || echo "end of update-pepperflashplugin-nonfree"