#!/bin/bash
# OpenVPN passes cert depth as $1
depth=$1

# Only check client certificate (depth 0)
if [ "$depth" -eq 0 ]; then
    if [ -n "$tls_serial_0" ] && [ -n "$peer_cert" ]; then
        # Check OCSP against the CA
        # Assuming OpenSSL server runs on 10.60.0.1:8888 for OCSP
        status=$(openssl ocsp -issuer /etc/openvpn/server/ca.crt -cert "$peer_cert" -url http://10.60.0.1:8888 -CAfile /etc/openvpn/server/ca.crt 2>/dev/null)
        
        if echo "$status" | grep -q "cert: revoked"; then
            exit 1
        fi
        
        if echo "$status" | grep -q "cert: good"; then
            exit 0
        fi
        
        # If unknown or error, fail safe
        exit 1
    fi
fi

exit 0