checksumpackage

#!/bin/bash
# checksumpackage
# make checksum.md5 via md5deep for package
# version 1.1 adds use of dfxml
version=1.1
unset dependencies
dependencies=(md5deep xml removeDSStore)

scriptdir=$(dirname "$0")
. "$scriptdir/mmfunctions" || { echo "Missing '$scriptdir/mmfunctions'. Exiting." ; exit 1 ;};

usage(){
    echo
    echo "$(basename $0) ${version}"
    echo "This application will create a checksum from a directory or package input with the following options."
    echo "Dependencies: ${dependencies[@]}"
    echo "Usage: $(basename $0) directoryorpackage1 [ directoryorpackage2 ...]"
    echo
    exit
}
[ "$#" = 0 ] && usage
check_dependencies "${dependencies[@]}"

cleanup(){
    log -a "Process aborted"
    exit 1
}

trap cleanup SIGHUP SIGINT SIGTERM
log -b

# local variables
CHECKSUMNAME="checksum.md5"
DFXMLNAME="dfxml.xml"

while [ "$*" != "" ] ; do
    if [ -d "$1" ] ; then
        PWD=$(pwd)
        removeDSStore "$1"
        if [ -d "$1/objects" ] ; then
            INDIR="objects"
            OUTDIR="metadata"
        else
            INDIR="."
            OUTDIR="."
        fi
        [ ! -d "$1/$OUTDIR" ] && mkdir -p "$1/$OUTDIR"
        if [ ! -s "${1}/$OUTDIR/$CHECKSUMNAME" ] ; then
            report -dt "making Digital Forensics XML (${DFXMLNAME}) and ($CHECKSUMNAME) for ${1}"
            cd "$1/$INDIR"
            maketemp
            md5deep -drl . > $TMPFILE
            mv $TMPFILE "$1/$OUTDIR/$DFXMLNAME"
            xml sel -T -t -m "/dfxml/fileobject" -v "hashdigest" -o "  " -v "filename" -n "$1/$OUTDIR/$DFXMLNAME" > "$1/$OUTDIR/$CHECKSUMNAME"
            cd "$PWD"
        else
            report -dt "${CHECKSUMNAME} already exists, skipping for ${1}"
        fi
    else
    report -dt "ERROR: $0 requires directories as input and $1 is not a directory."
    fi
    shift
done
log -e