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########################################################
# Include: Detect, whether runvirt runs in legacy mode #
########################################################
# Legacy mode: As runvirt has been before.
# New mode: uuid in xml _and_ vmx given via http.
writelog "Detecting current/legacy mode ..."
# First, let's try to extract an imguuid from xmlfile:
declare -rg IMGUUID=$(grep -i -o '<uuid param=.*"' "${xmlfile}" | sed -e "s/&.*;/; /g" | awk -F '"' '{ print $2 }')
declare -rg TMPCONFIG="$TMPDIR/vmconfig.tmp"
writelog "IMGUUID extracted: $IMGUUID"
# Assume legacy mode by default, only trigger "current" mode if everything else below worked
LEGACY=yes
if [ -z "$IMGUUID" ]; then # Keine uuid: Abbruch, Legacy
writelog "Could not extract a uuid param from ${xmlfile}. Triggering legacy mode."
else
# Now getting template file:
if ! wget -O "$TMPCONFIG" "${SLX_VMCHOOSER_BASE_URL}/lecture/${IMGUUID}" 2>/dev/null >&2; then
writelog "wget ${SLX_VMCHOOSER_BASE_URL}/lecture/${IMGUUID}. Triggering legacy mode."
else
writelog "wget ${SLX_VMCHOOSER_BASE_URL}/lecture/${IMGUUID} successful."
if [ ! -s "$TMPCONFIG" ]; then
writelog "Server sent zero byte virtual machine description file. Triggering legacy mode."
else
writelog "Triggering current (non-legacy) mode."
LEGACY= # everything worked - clear legacy mode variable (so we use the "current" mode)
fi
fi
fi
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