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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:
IMGUUID=$(grep -io '<uuid param=.*"' "${xmlfile}" | sed -e "s/&.*;/; /g" | awk -F '"' '{ print $2 }')
writelog "IMGUUID extracted: $IMGUUID"
if [ ! -n "$IMGUUID" ]; then # Keine uuid: Abbruch, Legacy
writelog "Could not extract an uuid param from ${xmlfile}. Triggering legacy mode."
LEGACY=: # No uuid; legacy.
else
# Now getting template file:
if wget -O "$TMPDIR/$IMGUUID" "${SLX_VMCHOOSER_BASE_URL}/lecture/${IMGUUID}" 1>&2 2>/dev/null; then
writelog "wget ${SLX_VMCHOOSER_BASE_URL}/lecture/${IMGUUID} successful."
writelog "Triggering current (non-legacy) mode."
LEGACY= # both strings set: no legacy.
if [ ! -s "$TMPDIR/$IMGUUID" ]; then
LEGACY= # no legacy: server sent 0 byte file.
writelog "Server sent zero byte virtual machine description file. Retriggering legacy mode."
fi
else
writelog "wget ${SLX_VMCHOOSER_BASE_URL}/lecture/${IMGUUID}. Triggering legacy mode."
LEGACY=:
fi
fi
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