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 output/sgn
   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         cd "output/${certdata[1]}"
  28
  29         # Handle "CA" type here.
  30         if [[ ${certdata[0]} == "CA" ]] ; then
  31                 mkdir -m 0700 certs crl newcerts
  32                 touch index.txt
  33                 export CA_PATH="./"
  34                 openssl req -batch -new -x509 -newkey rsa:4096 -keyout ca.key -out ca.crt -nodes -subj "${certdata[2]}" -reqexts v3_ca_req -config "${MYPWD}/openssl.cnf" &>/dev/null
  35                 continue
  36         fi
  37
  38
  39         # Handle non "CA" types here.
  40         export CA_PATH="$MYPWD/ca/"
  41         SUBJECT="${certdata[2]}CN=${certdata[1]}/"
  42         DNS_NAMES="${certdata[1]},${certdata[3]}"
  43         OLDIFS=$IFS
  44         IFS=","
  45         cat "${MYPWD}/openssl.cnf" > /tmp/certgen.cnf
  46         COUNTER=0
  47         for name in $DNS_NAMES; do
  48                 if [[ "" == $name ]] ; then
  49                         continue
  50                 fi
  51                 COUNTER=$((COUNTER+1))
  52                 echo "DNS.${COUNTER} = $name" >> /tmp/certgen.cnf
  53         done
  54         IFS=$OLDIFS
  55         unset OLDIFS
  56         unset COUNTER
  57
  58         openssl genrsa -out "${certdata[1]}.key" 4096 &> /dev/null
  59         openssl req -new -key "${certdata[1]}.key" -out "${certdata[1]}.csr" -utf8 -batch -subj "${SUBJECT}" -config /tmp/certgen.cnf
  60
  61         if [[ ${certdata[0]} == "SGN" ]] ; then
  62                 if [[ ! -d "${CA_PATH}"  ]] ; then
  63                         echo "*** ERROR - NO CA DATA FOUND ***" 1>&2
  64                         echo "*** maybe generate a CA and move it to ${CA_PATH} ***" 1>&2
  65                         echo "copy template: mv output/SomeNet ${CA_PATH}" 1>&2
  66                         echo "*** ABORTED ***" 1>&2
  67                         exit 2
  68                 fi
  69
  70                 openssl ca -batch -create_serial -out "${certdata[1]}.crt" -days 365 -keyfile "${MYPWD}/ca/ca.key" -extensions v3_ca \
  71                         -config "${MYPWD}/openssl.cnf" -infiles "${certdata[1]}.csr"
  72                 cat "${MYPWD}/ca/ca.crt" >> "${certdata[1]}.crt"
  73
  74         elif [[ ${certdata[0]} == "CRT" ]] ; then
  75                 openssl x509 -req -signkey "${certdata[1]}.key" -in "${certdata[1]}.csr" -out "${certdata[1]}.crt" -extensions v3_req -extfile /tmp/certgen.cnf \
  76                         -days 365 -sha512 &> /dev/null
  77                 chmod o+r "${certdata[1]}.crt"
  78
  79                 echo -n "${certdata[1]} " >> "${MYPWD}/output/fpfile.txt"
  80                 openssl x509 -in "${certdata[1]}.crt" -fingerprint -noout -sha512 >> "${MYPWD}/output/fpfile.txt"
  81                 echo "" >> "${MYPWD}/output/fpfile.txt"
  82         fi
  83
  84         rm /tmp/certgen.cnf
  85         cd $MYPWD
  86
  87         if [[ ${certdata[0]} == "SGN" ]] ; then
  88                 mv "output/${certdata[1]}" "output/sgn/${certdata[1]}"
  89         elif [[ ${certdata[0]} == "CRT" ]] ; then
  90                 mv "output/${certdata[1]}" "output/crt/${certdata[1]}"
  91         else
  92                 mv "output/${certdata[1]}" "output/csr/${certdata[1]}"
  93         fi
  94
  95 done < certgen.data
  96
  97 echo "*** DONE ***"
  98 ls -l "${MYPWD}/output/"*/ | grep -v "total"
  99