getWpaPSK() - /usr/sbin/wag-profiles.sh - puppylinux

# Line #1158 of /usr/sbin/wag-profiles.sh
# http://www.pearltrees.com/s243a/getwpapsk-profiles-puppylinux/id16403226

# A function to get the psk from wpa_passphrase (moved out of useWpaSupplicant
getWpaPSK(){
    # If key is not hex, then convert to hex
    echo "$PROFILE_KEY" | grep -Eq "^[0-9a-fA-F]{64}$"
    if [ $? -eq 0 ] ; then
        PSK="$PROFILE_KEY"
    else
        #KEY_SIZE=`echo "${PROFILE_KEY}" | wc -c`
        KEY_SIZE=${#PROFILE_KEY}
        if [ $KEY_SIZE -lt 8 ] || [ $KEY_SIZE -gt 64 ] ; then
            giveErrorDialog "Error!
Shared key must be either
- ASCII between 8 and 63 characters
- 64 characters hexadecimal
"
            return 1
        else #if [ $KEY_SIZE -lt 8 ] || [ $KEY_SIZE -gt 64 ]
            # Dougal: add escaping of funny chars in passphrase
            # also quote the inner subshell
            # No! don't need subshell apparently, escaping chars is unneeded
            #"$( echo "$PROFILE_KEY" | sed 's%\$%\\$%g ; s%`%\\`%g ; s%"%\\"%g' )"
            ##  Strage: the first grep below was enough for me, but a user got
            ##+ errors, because it didn't filter out the "#psk" line!
            PSK=$(wpa_passphrase "$PROFILE_ESSID" "$PROFILE_KEY" | \
                   grep -F "psk=" | grep -Fv '#psk' | cut -d"=" -f2 )
            echo "PSK is |$PSK|" >> $DEBUG_OUTPUT
            # make sure we got something!
            if [ ! "$PSK" ] ; then
              giveErrorDialog "$L_MESSAGE_Bad_PSK"
              return 1
            fi
        fi #if [ $KEY_SIZE -lt 8 ] || [ $KEY_SIZE -gt 64 ] ; then
    fi #if [ $? -eq 0 ] ; then #check for hex
    return 0
}