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         if [[ ${certdata[0]} == "EXIT" ]] ; then
  19                 echo "*** $cdline ***" 1>&2
  20                 exit ${certdata[1]}
  21         fi
  22
  23         echo "*** Processing: $(date -Iseconds) - ${certdata[0]} - ${certdata[1]} ***"
  24         if [[ -d "output/${certdata[1]}"  ]] ; then
  25                 echo "*** ERROR - THIS SEEMS TO ALREADY EXIST ***" 1>&2
  26                 echo "*** ABORTED ***" 1>&2
  27                 exit 1
  28         fi
  29
  30         mkdir "output/${certdata[1]}"
  31         chmod o+x "output/${certdata[1]}"
  32         cd "output/${certdata[1]}"
  33
  34         # Handle "CA" type here.
  35         if [[ ${certdata[0]} == "CA" ]] ; then
  36                 mkdir -m 0700 certs crl newcerts
  37                 touch index.txt
  38                 export CA_PATH="./"
  39                 openssl req -batch -new -x509 -newkey rsa:4096 -keyout ca.key -out ca.crt -nodes -subj "${certdata[2]}" -reqexts v3_ca_req -config "${MYPWD}/openssl.cnf" -days 3650 &>/dev/null
  40                 continue
  41         fi
  42
  43
  44         # Handle non "CA" types here.
  45         export CA_PATH="$MYPWD/ca/"
  46         SUBJECT="$(echo -n "${certdata[2]}" | sed -e 's/_/ /g')CN=${certdata[1]}/"
  47         DNS_NAMES="${certdata[1]},${certdata[3]}"
  48         OLDIFS=$IFS
  49         IFS=","
  50         cat "${MYPWD}/openssl.cnf" > /tmp/certgen.cnf
  51         COUNTER=0
  52         for name in $DNS_NAMES; do
  53                 if [[ "" == $name ]] ; then
  54                         continue
  55                 fi
  56                 COUNTER=$((COUNTER+1))
  57                 echo "DNS.${COUNTER} = $name" >> /tmp/certgen.cnf
  58         done
  59         IFS=$OLDIFS
  60         unset OLDIFS
  61         unset COUNTER
  62
  63         openssl genrsa -out "${certdata[1]}.key" 4096 &> /dev/null
  64         openssl req -new -key "${certdata[1]}.key" -out "${certdata[1]}.csr" -utf8 -batch -subj "${SUBJECT}" -config /tmp/certgen.cnf
  65
  66         if [[ ${certdata[0]} == "SGN" ]] ; then
  67                 if [[ ! -d "${CA_PATH}"  ]] ; then
  68                         echo "*** ERROR - NO CA DATA FOUND ***" 1>&2
  69                         echo "*** maybe generate a CA and move it to ${CA_PATH} ***" 1>&2
  70                         echo "copy template: mv output/SomeNet ${CA_PATH}" 1>&2
  71                         echo "*** ABORTED ***" 1>&2
  72                         exit 2
  73                 fi
  74
  75                 openssl ca -batch -create_serial -out "${certdata[1]}.crt" -days 365 -keyfile "${MYPWD}/ca/ca.key" -extensions v3_ca \
  76                         -config "${MYPWD}/openssl.cnf" -infiles "${certdata[1]}.csr"
  77                 cat "${MYPWD}/ca/ca.crt" >> "${certdata[1]}.crt"
  78
  79         elif [[ ${certdata[0]} == "CRT" ]] ; then
  80                 openssl x509 -req -signkey "${certdata[1]}.key" -in "${certdata[1]}.csr" -out "${certdata[1]}.crt" -extensions v3_req -extfile /tmp/certgen.cnf \
  81                         -days 365 -sha512 &> /dev/null
  82                 chmod o+r "${certdata[1]}.crt"
  83
  84                 echo -n "${certdata[1]} " >> "${MYPWD}/output/fpfile.txt"
  85                 openssl x509 -in "${certdata[1]}.crt" -fingerprint -noout -sha512 >> "${MYPWD}/output/fpfile.txt"
  86                 echo "" >> "${MYPWD}/output/fpfile.txt"
  87         fi
  88
  89         rm /tmp/certgen.cnf
  90         cd $MYPWD
  91
  92         if [[ ${certdata[0]} == "SGN" ]] ; then
  93                 mv "output/${certdata[1]}" "output/sgn/${certdata[1]}"
  94         elif [[ ${certdata[0]} == "CRT" ]] ; then
  95                 mv "output/${certdata[1]}" "output/crt/${certdata[1]}"
  96         else
  97                 mv "output/${certdata[1]}" "output/csr/${certdata[1]}"
  98         fi
  99
 100 done < certgen.data
 101
 102 echo "*** DONE ***"
 103 ls -l "${MYPWD}/output/"*/ | grep -v "total"
 104