PC World 2005 June/PCWorld_2005-06_cd.bin/software/vyzkuste/firewally/firewally.exe/framework-2.3.exe/CA.pl

Perl Script | 2003-09-30 | 5KB | 174 lines

#!/usr/bin/perl
#
# CA - wrapper around ca to make it easier to use ... basically ca requires
#      some setup stuff to be done before you can use it and this makes
#      things easier between now and when Eric is convinced to fix it :-)
#
# CA -newca ... will setup the right stuff
# CA -newreq[-nodes] ... will generate a certificate request
# CA -sign ... will sign the generated request and output
#
# At the end of that grab newreq.pem and newcert.pem (one has the key
# and the other the certificate) and cat them together and that is what
# you want/need ... I'll make even this a little cleaner later.
#
#
# 12-Jan-96 tjh    Added more things ... including CA -signcert which
#                  converts a certificate to a request and then signs it.
# 10-Jan-96 eay    Fixed a few more bugs and added the SSLEAY_CONFIG
#           environment variable so this can be driven from
#           a script.
# 25-Jul-96 eay    Cleaned up filenames some more.
# 11-Jun-96 eay    Fixed a few filename missmatches.
# 03-May-96 eay    Modified to use 'ssleay cmd' instead of 'cmd'.
# 18-Apr-96 tjh    Original hacking
#
# Tim Hudson
# [e-mail]
#

# 27-Apr-98 snh    Translation into perl, fix existing CA bug.
#
#
# Steve Henson
# [e-mail]

# default openssl.cnf file has setup as per the following
# demoCA ... where everything is stored

$SSLEAY_CONFIG=$ENV{"SSLEAY_CONFIG"};
$DAYS="-days 365";
$REQ="openssl req $SSLEAY_CONFIG";
$CA="openssl ca $SSLEAY_CONFIG";
$VERIFY="openssl verify";
$X509="openssl x509";
$PKCS12="openssl pkcs12";

$CATOP="./demoCA";
$CAKEY="cakey.pem";
$CACERT="cacert.pem";

$DIRMODE = 0777;

$RET = 0;

foreach (@ARGV) {
    if ( /^(-\?|-h|-help)$/ ) {
        print STDERR "usage: CA -newcert|-newreq|-newreq-nodes|-newca|-sign|-verify\n";
        exit 0;
    } elsif (/^-newcert$/) {
        # create a certificate
        system ("$REQ -new -x509 -keyout newreq.pem -out newreq.pem $DAYS");
        $RET=$?;
        print "Certificate (and private key) is in newreq.pem\n"
    } elsif (/^-newreq$/) {
        # create a certificate request
        system ("$REQ -new -keyout newreq.pem -out newreq.pem $DAYS");
        $RET=$?;
        print "Request (and private key) is in newreq.pem\n";
    } elsif (/^-newreq-nodes$/) {
        # create a certificate request
        system ("$REQ -new -nodes -keyout newreq.pem -out newreq.pem $DAYS");
        $RET=$?;
        print "Request (and private key) is in newreq.pem\n";
    } elsif (/^-newca$/) {
        # if explicitly asked for or it doesn't exist then setup the
        # directory structure that Eric likes to manage things
        $NEW="1";
        if ( "$NEW" || ! -f "${CATOP}/serial" ) {
        # create the directory hierarchy
        mkdir $CATOP, $DIRMODE;
        mkdir "${CATOP}/certs", $DIRMODE;
        mkdir "${CATOP}/crl", $DIRMODE ;
        mkdir "${CATOP}/newcerts", $DIRMODE;
        mkdir "${CATOP}/private", $DIRMODE;
        open OUT, ">${CATOP}/serial";
        print OUT "01\n";
        close OUT;
        open OUT, ">${CATOP}/index.txt";
        close OUT;
        }
        if ( ! -f "${CATOP}/private/$CAKEY" ) {
        print "CA certificate filename (or enter to create)\n";
        $FILE = <STDIN>;

        chop $FILE;

        # ask user for existing CA certificate
        if ($FILE) {
            cp_pem($FILE,"${CATOP}/private/$CAKEY", "PRIVATE");
            cp_pem($FILE,"${CATOP}/$CACERT", "CERTIFICATE");
            $RET=$?;
        } else {
            print "Making CA certificate ...\n";
            system ("$REQ -new -x509 -keyout " .
            "${CATOP}/private/$CAKEY -out ${CATOP}/$CACERT $DAYS");
            $RET=$?;
        }
        }
    } elsif (/^-pkcs12$/) {
        my $cname = $ARGV[1];
        $cname = "My Certificate" unless defined $cname;
        system ("$PKCS12 -in newcert.pem -inkey newreq.pem " .
            "-certfile ${CATOP}/$CACERT -out newcert.p12 " .
            "-export -name \"$cname\"");
        $RET=$?;
        exit $RET;
    } elsif (/^-xsign$/) {
        system ("$CA -policy policy_anything -infiles newreq.pem");
        $RET=$?;
    } elsif (/^(-sign|-signreq)$/) {
        system ("$CA -policy policy_anything -out newcert.pem " .
                            "-infiles newreq.pem");
        $RET=$?;
        print "Signed certificate is in newcert.pem\n";
    } elsif (/^(-signCA)$/) {
        system ("$CA -policy policy_anything -out newcert.pem " .
                    "-extensions v3_ca -infiles newreq.pem");
        $RET=$?;
        print "Signed CA certificate is in newcert.pem\n";
    } elsif (/^-signcert$/) {
        system ("$X509 -x509toreq -in newreq.pem -signkey newreq.pem " .
                                "-out tmp.pem");
        system ("$CA -policy policy_anything -out newcert.pem " .
                            "-infiles tmp.pem");
        $RET = $?;
        print "Signed certificate is in newcert.pem\n";
    } elsif (/^-verify$/) {
        if (shift) {
        foreach $j (@ARGV) {
            system ("$VERIFY -CAfile $CATOP/$CACERT $j");
            $RET=$? if ($? != 0);
        }
        exit $RET;
        } else {
            system ("$VERIFY -CAfile $CATOP/$CACERT newcert.pem");
            $RET=$?;
                exit 0;
        }
    } else {
        print STDERR "Unknown arg $_\n";
        print STDERR "usage: CA -newcert|-newreq|-newreq-nodes|-newca|-sign|-verify\n";
        exit 1;
    }
}

exit $RET;

sub cp_pem {
my ($infile, $outfile, $bound) = @_;
open IN, $infile;
open OUT, ">$outfile";
my $flag = 0;
while (<IN>) {
    $flag = 1 if (/^-----BEGIN.*$bound/) ;
    print OUT $_ if ($flag);
    if (/^-----END.*$bound/) {
        close IN;
        close OUT;
        return;
    }
}
}