#!/bin/bash
#
# BASH helper to parse proxy information
# based on arcproxy tool (ARC Clients 4.0+)
#

# Returns:
#  stdout:      DN
#               VO
#               BASE64 VO ATTRIBUTES
#               VALIDITY UNIXTIME
#  exit status: 0 - proxy parsed succesfully and valid
#               1 - failed to parse proxy
#               2 - no VOMS AC found (DN is still returned)
#               4 - proxy is not valid
#               6 - proxy is not valid and no VOMS AC

proxyfile=$1

# check that supplied file is a proxy file
userdn=$( arcproxy -i identity -P $proxyfile 2>/dev/null )
[ -z "$userdn" ] && exit 1
echo "$userdn"

exit_status=0
# get VO from VOMS AC extension
uservo=$( arcproxy -i vomsVO -P $proxyfile 2>/dev/null)
[ -z "$uservo" ] && exit_status=2
# get VO attributes
[ -n "$uservo" ] && uservoattrs=$( arcproxy -I -P $proxyfile 2>/dev/null | grep attribute | base64 -w 0 )
echo "${uservo:-NULL}"
echo "${uservoattrs:-NULL}"

# get proxy VALIDITY
proxyvalid=$( arcproxy -i validityEnd -P $proxyfile 2>/dev/null )
if [ -n "$uservo" ]; then
    proxyacvalid=$( arcproxy -i vomsACvalidityEnd -P $proxyfile 2>/dev/null )
    [ $proxyacvalid -lt $proxyvalid ] && proxyvalid=$proxyacvalid
fi
echo "$proxyvalid"

currentutime=$( date +%s )
[ $proxyvalid -ge $currentutime ] && exit_status=$((exit_status+4))

exit $exit_status