certgen.sh

   1 #!/bin/bash
   2
   3 MYPWD=$(pwd)
   4 umask 0027
   5
   6 echo "cleanup previous run..."
   7 rm -rf output/*
   8 mkdir output/csr output/crt
   9
  10 while read cdline ; do
  11         if [[ $cdline == "" || $cdline == "#"* ]] ; then
  12                 continue
  13         fi
  14
  15         cd $MYPWD
  16         read -a certdata <<< "$cdline"
  17
  18         echo "*** Processing: $(date -Iseconds) - ${certdata[0]} - ${certdata[1]} ***"
  19         if [[ -d "output/${certdata[1]}"  ]] ; then
  20                 echo "*** ERROR - THIS SEEMS TO ALREADY EXIST ***" 1>&2
  21                 echo "*** ABORTED ***" 1>&2
  22                 exit 1
  23         fi
  24
  25         mkdir "output/${certdata[1]}"
  26         chmod o+x "output/${certdata[1]}"
  27
  28         SUBJECT="${certdata[2]}CN=${certdata[1]}/"
  29         DNS_NAMES="${certdata[1]},${certdata[3]}"
  30         OLDIFS=$IFS
  31         IFS=","
  32         cat openssl.cnf > /tmp/certgen.cnf
  33         COUNTER=0
  34         for name in $DNS_NAMES; do
  35                 COUNTER=$((COUNTER+1))
  36                 echo "DNS.${COUNTER} = $name" >> /tmp/certgen.cnf
  37         done
  38         IFS=$OLDIFS
  39         unset OLDIFS
  40         unset COUNTER
  41
  42         cd "output/${certdata[1]}"
  43         openssl genrsa -out "${certdata[1]}.key" 4096 &> /dev/null
  44         openssl req -new -key "${certdata[1]}.key" -out "${certdata[1]}.csr" -utf8 -batch -subj "${SUBJECT}" -config /tmp/certgen.cnf
  45
  46         if [[ ${certdata[0]} == "CRT" ]] ; then
  47                 openssl x509 -req -signkey "${certdata[1]}.key" -in "${certdata[1]}.csr" -out "${certdata[1]}.crt" -extensions v3_req -extfile /tmp/certgen.cnf \
  48                         -days 365 -sha512 &> /dev/null
  49                 chmod o+r "${certdata[1]}.crt"
  50
  51                 echo -n "${certdata[1]} " >> "${MYPWD}/output/fpfile.txt"
  52                 openssl x509 -in "${certdata[1]}.crt" -fingerprint -noout -sha512 >> "${MYPWD}/output/fpfile.txt"
  53                 echo "" >> "${MYPWD}/output/fpfile.txt"
  54         fi
  55
  56         rm /tmp/certgen.cnf
  57         cd $MYPWD
  58
  59         if [[ ${certdata[0]} == "CRT" ]] ; then
  60                 mv "output/${certdata[1]}" "output/crt/${certdata[1]}"
  61         else
  62                 mv "output/${certdata[1]}" "output/csr/${certdata[1]}"
  63         fi
  64
  65 done < certgen.data
  66
  67 echo "*** DONE ***"
  68 ls -l output/*/ | grep -v "total"
  69