[OBSOLETE] Downloader/packager of flash plugins for XBPS-based systems (Void Linux)

adobe-flash-package

#!/bin/sh
_bsdl='
Copyright (c) 2017, masato9000@users.noreply.github.com
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
'

adobeURL=https://fpdownload.adobe.com/pub/flashplayer/pdc/
conf_file=/var/db/flash-plugin-xbps/conf
build_dir="/var/tmp/flash-plugin-xbps.build"

# Filenames to download from adobe.com
arch=$(xbps-uhelper arch)
dl_n=flash_player_npapi_linux.$(echo $arch | sed 's/i686/i386/').tar.gz
dl_p=flash_player_ppapi_linux.$(echo $arch | sed 's/i686/i386/').tar.gz

# Locally-created package names
pkg_n=adobe-flash-local
pkg_p=pepper-flash-local

usage() {
    if [ "$1"X = insX ]; then
        echo "ERROR: Must be root to install packages"
        exit 2
    fi
    [ "$1"X = unkX ] && echo "ERROR: Unknown options"
    [ "$1"X = incX ] && echo "ERROR: Incompatible option combination"
    echo "Usage:\t$_e OPTIONS"
    echo "Download and package Adobe's Flash plugin for the XBPS Package Manager"
    echo "\nOPTIONS:"
    echo "  -c\tCheck for current version and update the version config file"
    echo "\tRequires write permissions to version config file"
    echo "\tCannot be combined with -n, -p, or -i"
    echo "  -N\tUse with -c. If an update is available, send a notification to"
    echo "\tto all users in Xorg sessions (requires libnotify)"
    echo "\tUseful for running checks in a cron job"
    echo "  -P\tUse with -c. If an update is available, send a notification to"
    echo "\tto all active console (TTY) and terminal (PTS/*) sessions"
    echo "\tUseful for running checks in a cron job"
    echo "  -n\tDownload and package the NPAPI flash plugin matching the version"
    echo "\tlisted in the version config file. (Mozilla-compatible browsers)"
    echo "\tCannot be used with -p"
    echo "  -p\tDownload and package the PPAPI flash plugin matching the version"
    echo "\tlisted in the version config file. (Chrome-compatible browsers)"
    echo "\tCannot be used with -n"
    echo "  -i\tInstall the package after creation (requires root)"
    exit 1
}

find_config() {
    if [ -f $conf_file ]; then
        if [ -w $conf_file ]; then
            return 0
        else
            return 1
        fi
    else
        return 255
    fi
}

no_config() {
    if [ "$1"X = roX ]; then
        echo "ERROR: cannot write version config: $config_file"
        echo "Please rerun as root"
        exit 2
    else
        echo "ERROR: version config %s does not exist\n" "$config_file"
        echo "Please run \"$_e -c\" to generate it"
        exit 4
    fi
}

gen_config() {
    local _tempconf=
    if [ $1X = 0X ]; then
        _tmpconf=$(mktemp)
        printf "npapi_ver=1.0.0\nppapi_ver=1.0.0%s" > $_tmpconf
        install -D -m 644 $_tmpconf $conf_file
        if [ $? -ne 0 ]; then
            echo "ERROR: Failed to create version config file"
            echo "\tMake sure you are root, or have write access to ${conf_file%/*}"
            rm $_tmpconf
            exit 2
        fi
        rm $_tmpconf
    else
        printf "npapi_ver=%s\nppapi_ver=%s\n" "$npapi_ver" "$ppapi_ver" > $conf_file
    fi
    return 0
}

check_ver() {
    local _checkurl="https://get.adobe.com/flashplayer/about/" \
        _npapi_upstr= _ppapi_upstr= _npapi_inst= _ppapi_inst= \
        _updconf=0 _confexists= _versions=
    find_config
    _confexists=$?

    # Initialize config if nonexistent
    [ $_confexists -eq 255 ] && gen_config 0
    # Complain and abort if we lack permission
    [ $_confexists -eq 1 ] && no_config ro

    . $conf_file

    # Magic! if Adobe's "about" page changes, we'll need a new spell
    _versions="$(curl "$_checkurl" 2>/dev/null |
      awk '/^\s*$/{next}
	/<td rowspan="3"><strong>Linux/{do_process=1; next}
        /<td><strong>ChromeOS/{do_process=0}
        /Firefox/{if (do_process == 1) {
            do_npparse=1; next}
        }
        /Opera/{if (do_process == 1) {
            do_ppparse=1; next}
        }
        {if (do_npparse == 1) {
            do_npparse=0
            split($0,a,"</*td>")
            print a[2]}
        }
	    {if (do_ppparse == 1) {
            do_ppparse=0
            split($0,a,"</*td>")
            print a[2]}
        }')"

    if [ -z "$_versions" ]; then
        echo "ERROR: Something is wrong with Flash \"About\" URL:\n$_checkurl"
        echo "Please confirm URL, and if necessary, rewrite black magic"
        exit 128
    fi

    _npapi_upstr=$(echo $_versions | awk '{print $1}')
    _ppapi_upstr=$(echo $_versions | awk '{print $2}')
    # Compare version config file and see if it needs updatint
    xbps-uhelper cmpver $npapi_ver $_npapi_upstr
    if [ $? -eq 255 ]; then
        _updconf=1
        npapi_ver=$_npapi_upstr
    fi
    xbps-uhelper cmpver $ppapi_ver $_ppapi_upstr
    if [ $? -eq 255 ]; then
        _updconf=1
        ppapi_ver=$_ppapi_upstr
    fi
    [ $_updconf -eq 1 ] && gen_config

    # Get installed versions for comparison
    _npapi_inst=$(xbps-query -p pkgver $pkg_n |
        sed 's/adobe-flash-local-//;s/_.*//')
    [ -z "$_npapi_inst" ] && _npapi_inst=0
    _ppapi_inst=$(xbps-query -p pkgver $pkg_p |
        sed 's/pepper-flash-local-//;s/_.*//')
    [ -z "$_ppapi_inst" ] && _ppapi_inst=0

    xbps-uhelper cmpver $_npapi_inst $_npapi_upstr
    if [ $? -eq 255 ]; then
        if [ $_npapi_inst != 0 ]; then
            np_upmsg="Adobe Flash Plugin (NPAPI): New version $_npapi_upstr available for download"
        else
            np_upmsg=
        fi
    fi
    xbps-uhelper cmpver $_ppapi_inst $_ppapi_upstr
    if [ $? -eq 255 ]; then
        if [ $_ppapi_inst != 0 ]; then
            pp_upmsg="Adobe Flash Plugin (PPAPI): New version $_ppapi_upstr available for download"
        else
            pp_upmsg=
        fi
    fi

    if [ -n "$np_upmsg" ]; then
        echo "$np_upmsg"
    else
        echo "NPAPI Flash: upstream version $_npapi_upstr"
    fi
    if [ -n "$pp_upmsg" ]; then
        echo "$pp_upmsg"
    else
        echo "PPAPI Flash: upstream version $_ppapi_upstr"
    fi

    # Only use notification if there's an upgrade
    if [ -n "$np_upmsg" -o -n "$pp_upmsg" ]; then
        [ -n "$_optN" ] && notify_lnotify
        [ -n "$_optP" ] && notify_console
    fi

    exit 0
}

notify_console() {
    local _upmsg="\nBroadcast message from $(whoami)@$(hostname) ($(date))"
    # wall for all TTY logins
    echo "$np_upmsg\n$pp_upmsg" | wall
    # print to all /dev/pts for terminal emulator windows without utmp
    ls /dev/pts/[0-9]* | while read _pt; do
        # Don't send to pts/x that are in utmp
        who | grep pts/$(basename $_pt) > /dev/null && continue
        echo "$_upmsg\n\n$np_upmsg\n$pp_upmsg" > $_pt
    done
}

notify_lnotify() {
    local _options="-i dialog-information -t 30000" _upmsg=

    _upmsg="$(echo "Adobe Flash:\n\n$np_upmsg\n\n$pp_upmsg")"
    who | grep \(:[0-9]*\) | sed 's/[()]//g' | awk '{print $1, $NF}' |
      while read _user _display; do
      DISPLAY=$_display su $_user -c "notify-send $_options \"$_upmsg\""
    done
}

# Download and package
dl_flash() {
    mkdir -p "$build_dir"
    (
        cd "$build_dir"
        xbps-uhelper fetch "$adobeURL$ver/$dl>$pkg.tar.gz"
        zcat "$pkg.tar.gz" | tar -x --no-same-owner
    ) || {
        echo Error while extracting;
        rm -r $build_dir;
        exit 8;
    }
}

mkflash() {
    local _confexists= _flavor=$1

    find_config
    _confexists=$?
    [ $_confexists -eq 255 ] && no_config

    . $conf_file

    if [ "$_flavor"X = npapiX ]; then
        pkg=$pkg_n
        ver=$npapi_ver
        dl=$dl_n
        desc="$desc_n"
        conflicts="$conflicts_n"
    elif [ "$_flavor"X = ppapiX ]; then
        pkg=$pkg_p
        ver=$ppapi_ver
        dl=$dl_p
        desc="$desc_p"
        conflicts="$conflicts_p"
    fi
    destdir="$build_dir/$pkg"

    dl_flash

    if [ "$_flavor"X = npapiX ]; then
        inst_flash_n
    elif [ "$_flavor"X = ppapiX ]; then
        inst_flash_p
    fi

    pkg_flash
}

inst_flash_n() {
    echo "Installing files to $destdir.."

    mkdir -p "$destdir"
    install -D -m 755 -t $destdir/usr/lib/mozilla/plugins \
        $build_dir/libflashplayer.so
    install -D -m 755 -t $destdir/usr/bin \
        $build_dir/usr/bin/flash-player-properties
    install -D -m 644 -t $destdir/usr/share/applications \
        $build_dir/usr/share/applications/flash-player-properties.desktop
    install -D -m 644 -t $destdir/usr/share/kde4/services \
        $build_dir/usr/share/kde4/services/kcm_adobe_flash_player.desktop
    install -D -m 644 -t $destdir/usr/share/licenses/$pkg \
        $build_dir/license.pdf

    for _i in 16x16 22x22 24x24 32x32 48x48; do
        install -D -m 644 -t $destdir/usr/share/icons/hicolor/$_i/apps \
            $build_dir/usr/share/icons/hicolor/$_i/apps/flash-player-properties.png
    done

    if [ "$arch"X = x86_64X ]; then
        install -D -m 755 -t $destdir/usr/lib/kde4 \
            $build_dir/usr/lib64/kde4/kcm_adobe_flash_player.so
    else
        install -D -m 755 -t $destdir/usr/lib/kde4 \
            $build_dir/usr/lib/kde4/kcm_adobe_flash_player.so
    fi
}

inst_flash_p() {
    local _export_line="export CHROME_FLAGS=\"--ppapi-flash-path=/usr/lib/pepper-flash-local/libpepflashplayer.so --ppapi-flash-version=${ver}\"\n"
    echo "Installing files to $destdir.."

    mkdir -p "$destdir"
    install -D -m 644 -t $destdir/usr/lib/$pkg \
        $build_dir/libpepflashplayer.so
    install -D -m 644 -t $destdir/usr/lib/$pkg \
        $build_dir/manifest.json
    install -D -m 644 -t $destdir/usr/share/licenses/$pkg \
        $build_dir/license.pdf
    ln -s /usr/lib/$pkg/ $destdir/usr/lib/PepperFlash
    printf "$_export_line" > $build_dir/pepper-flash.sh
    install -D -m 644 -t $destdir/etc/profile.d \
        $build_dir/pepper-flash.sh
}

pkg_flash() {
    echo "Packaging: ${pkg}-${ver}_1.${arch}.xbps.."
    # Prepare install message
    printf -- "$nodistribute" | sed "s/PKGNAME/$pkg/g" > $destdir/INSTALL.msg

    xbps-create --architecture $arch \
        --homepage "$homepage" \
        --license "$license" \
        --maintainer "$maintainer" \
        --desc "$desc" \
        --pkgver "${pkg}-${ver}_1" \
        --conflicts "$conflicts" \
        --compression xz \
        --quiet $destdir

    rm -r $build_dir

    if [ -n "$_opti" ]; then
        echo y | xdowngrade ${pkg}-${ver}_1.${arch}.xbps
    fi

    echo ..Done
    exit 0
}

_e=${0##*/}
nodistribute="-The Adobe Flashplayer plugin is licensed software.

\tYou MUST read and agree to the license stored in
\t/usr/share/licenses/PKGNAME/license.pdf
\tbefore using it.

\tYou MUST NOT REDISTRIBUTE the PKGNAME package
\texcept in compliance with the provisions set forth in
\tthe aforementioned license.
"

desc_n="Adobe Flash Player plugin (NPAPI) for Mozilla-compatible browsers"
desc_p="Adobe Flash Player plugin (PPAPI) for Chromium-based browsers"
homepage="https://www.adobe.com/products/flashplayer.html"
license="Adobe License (non free)"
maintainer="Local <root@$(hostname)>"
conflicts_n="freshplayerplugin adobe-flash-plugin"
conflicts_p="chromium-pepper-flash"

# parse args
unset optc optN optP optn optp opti
while getopts cNPnpi _opts 2>/dev/null; do
    case $_opts in
        c)  # Check for new version
            _optc=check
            ;;
        N)  # Notify via libnotify
            _optN=notify
            _optc=check
            ;;
        P)  # Notify TTY/PTS
            _optP=notify
            _optc=check
            ;;
        n)  # Build NPAPI package
            _optn=npapi
            ;;
        p)  # Build PPAPI package
            _optp=ppapi
            ;;
        i)  # Install after build
            _opti=install
            ;;
        *)
            usage unk
            ;;
    esac
done

# Select actions based on arguments
if [ -n "$_optc" ]; then
    # Check does not combine with any other option
    [ -n "$_optn" -o -n "$_optp" -o -n "$_opti" ] && usage inc
    check_ver
fi
if [ -n "$_opti" ]; then
    _id=$(id -u)
    # Nonroot can't install packages
    [ $_id -ne 0 ] && usage ins
fi
if [ -n "$_optn" ]; then
    # Build one or the other
    [ -n "$_optp" ] && usage inc
    mkflash $_optn
elif [ -n "$_optp" ]; then
    mkflash $_optp
fi
# fallthrough - no action selected
usage

flash-plugin-xbps

script to download and package Adobe's flash plugin for xbps-based systems (Void Linux)

Features

• Supports downloading and packaging of both NPAPI and PPAPI varieties
• Checks Adobe's website for new versions and can send notifications of available updates to console sessions as well as X sessions (through libnotify). This allows it to be useful as a scheduled job to automatically check for updates.
• Much, much more (not really, that's about it)

Requirements

• Xbps-based Linux system (duh).
• Adobe's flash plugin is only available for glibc-based x86 architectures (32- and 64-bit).
• libnotify and a running dbus instance is needed for support of sending notifications to X sessions.

bugfix (20170618)

• install option didn't work due to typo (bad variable name in test)
• libnotify didn't work from cron due to bad assumption about the output of who

bugfix (20171031)

• fixed hardcoded version number in shell snippet... duh

Requiem Aeternam
It fought the good fight and now deserves peace.

Goodbye Flash. (and don't let the door hit your...)