isowriter/checkisowriter at master · KaOSx/isowriter · GitHub

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#!/bin/bash

# === This file is part of IsoWriter - <http://github.com/kaosx/isowriter> ===
#
#    Copyright 2016-2017, Anke Boersma demm@kaosx.us>
#
#    IsoWriter 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.
#
#    IsoWriter 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 IsoWriter. If not, see <http://www.gnu.org/licenses/>.
#
# alias GETTEXT='gettext "checkisowriter"'
# GETTEXT='gettext "checkisowriter"'
# po files commands:
# xgettext -o po/checkisowriter.pot -L Shell checkisowriter
# msgfmt -v  checkisowriter-nl_NL.po -o nl_NL.mo

. gettext.sh

TEXTDOMAIN=checkisowriter
export TEXTDOMAIN
TEXTDOMAINDIR=/usr/share/locale
export TEXTDOMAINDIR

kdialog --msgbox "$(gettext "Verifying the integrity of the USB in comparison to<br> the downloaded ISO, this can take a few minutes")"

CheckedFile=$(cat /tmp/iso.txt)
echo ${CheckedFile}
UsbDevice=$(blkid | grep iso9660 | head -c 8)

if [ ! ${UsbDevice} ]; then

    kdialog --msgbox "$(gettext "No Flash USB detected.")"

else

    sha256=$(sha256sum ${CheckedFile} | head -c 64)
    bites=$(wc -c ${CheckedFile} | awk '{print $1;}')
    usb=$(pkexec /usr/bin/head -c ${bites} ${UsbDevice} | sha256sum | head -c 64)

    if [ ${sha256} == ${usb} ]; then

        kdialog --msgbox "$(gettext "The downloaded ISO file and USB write match.<br><br>
        sha256sum for both is:<br><b>${sha256}</b><br><br>Make sure to verify against the sha256sum of the source where you downloaded the ISO from.")"

    fi

    if [ ${sha256} != ${usb} ]; then

        kdialog --error "$(gettext "ISO files do not match, do not use this USB for install media. <br><br> Or make sure only one USB flash device is connected and run Verify again.")"

    fi

fi