1#!/usr/bin/perl
2#
3# CA - wrapper around ca to make it easier to use ... basically ca requires
4#      some setup stuff to be done before you can use it and this makes
5#      things easier between now and when Eric is convinced to fix it :-)
6#
7# CA -newca ... will setup the right stuff
8# CA -newreq[-nodes] ... will generate a certificate request
9# CA -sign ... will sign the generated request and output
10#
11# At the end of that grab newreq.pem and newcert.pem (one has the key
12# and the other the certificate) and cat them together and that is what
13# you want/need ... I'll make even this a little cleaner later.
14#
15#
16# 12-Jan-96 tjh    Added more things ... including CA -signcert which
17#                  converts a certificate to a request and then signs it.
18# 10-Jan-96 eay    Fixed a few more bugs and added the SSLEAY_CONFIG
19#		   environment variable so this can be driven from
20#		   a script.
21# 25-Jul-96 eay    Cleaned up filenames some more.
22# 11-Jun-96 eay    Fixed a few filename missmatches.
23# 03-May-96 eay    Modified to use 'ssleay cmd' instead of 'cmd'.
24# 18-Apr-96 tjh    Original hacking
25#
26# Tim Hudson
27# tjh@cryptsoft.com
28#
29
30# 27-Apr-98 snh    Translation into perl, fix existing CA bug.
31#
32#
33# Steve Henson
34# shenson@bigfoot.com
35
36# default openssl.cnf file has setup as per the following
37# demoCA ... where everything is stored
38
39my $openssl;
40if(defined $ENV{OPENSSL}) {
41	$openssl = $ENV{OPENSSL};
42} else {
43	$openssl = "openssl";
44	$ENV{OPENSSL} = $openssl;
45}
46
47$SSLEAY_CONFIG=$ENV{"SSLEAY_CONFIG"};
48$DAYS="-days 365";
49$REQ="$openssl req $SSLEAY_CONFIG";
50$CA="$openssl ca $SSLEAY_CONFIG";
51$VERIFY="$openssl verify";
52$X509="$openssl x509";
53$PKCS12="$openssl pkcs12";
54
55$CATOP="./demoCA";
56$CAKEY="cakey.pem";
57$CACERT="cacert.pem";
58
59$DIRMODE = 0777;
60
61$RET = 0;
62
63foreach (@ARGV) {
64	if ( /^(-\?|-h|-help)$/ ) {
65	    print STDERR "usage: CA -newcert|-newreq|-newreq-nodes|-newca|-sign|-verify\n";
66	    exit 0;
67	} elsif (/^-newcert$/) {
68	    # create a certificate
69	    system ("$REQ -new -x509 -keyout newreq.pem -out newreq.pem $DAYS");
70	    $RET=$?;
71	    print "Certificate (and private key) is in newreq.pem\n"
72	} elsif (/^-newreq$/) {
73	    # create a certificate request
74	    system ("$REQ -new -keyout newreq.pem -out newreq.pem $DAYS");
75	    $RET=$?;
76	    print "Request (and private key) is in newreq.pem\n";
77	} elsif (/^-newreq-nodes$/) {
78	    # create a certificate request
79	    system ("$REQ -new -nodes -keyout newreq.pem -out newreq.pem $DAYS");
80	    $RET=$?;
81	    print "Request (and private key) is in newreq.pem\n";
82	} elsif (/^-newca$/) {
83		# if explicitly asked for or it doesn't exist then setup the
84		# directory structure that Eric likes to manage things
85	    $NEW="1";
86	    if ( "$NEW" || ! -f "${CATOP}/serial" ) {
87		# create the directory hierarchy
88		mkdir $CATOP, $DIRMODE;
89		mkdir "${CATOP}/certs", $DIRMODE;
90		mkdir "${CATOP}/crl", $DIRMODE ;
91		mkdir "${CATOP}/newcerts", $DIRMODE;
92		mkdir "${CATOP}/private", $DIRMODE;
93		open OUT, ">${CATOP}/index.txt";
94		close OUT;
95	    }
96	    if ( ! -f "${CATOP}/private/$CAKEY" ) {
97		print "CA certificate filename (or enter to create)\n";
98		$FILE = <STDIN>;
99
100		chop $FILE;
101
102		# ask user for existing CA certificate
103		if ($FILE) {
104		    cp_pem($FILE,"${CATOP}/private/$CAKEY", "PRIVATE");
105		    cp_pem($FILE,"${CATOP}/$CACERT", "CERTIFICATE");
106		    $RET=$?;
107		} else {
108		    print "Making CA certificate ...\n";
109		    system ("$REQ -new -x509 -keyout " .
110			"${CATOP}/private/$CAKEY -out ${CATOP}/$CACERT $DAYS");
111		    $RET=$?;
112		}
113	    }
114	    if (! -f "${CATOP}/serial" ) {
115		system ("$X509 -in ${CATOP}/$CACERT -noout "
116			. "-next_serial -out ${CATOP}/serial");
117	    }
118	} elsif (/^-pkcs12$/) {
119	    my $cname = $ARGV[1];
120	    $cname = "My Certificate" unless defined $cname;
121	    system ("$PKCS12 -in newcert.pem -inkey newreq.pem " .
122			"-certfile ${CATOP}/$CACERT -out newcert.p12 " .
123			"-export -name \"$cname\"");
124	    $RET=$?;
125	    exit $RET;
126	} elsif (/^-xsign$/) {
127	    system ("$CA -policy policy_anything -infiles newreq.pem");
128	    $RET=$?;
129	} elsif (/^(-sign|-signreq)$/) {
130	    system ("$CA -policy policy_anything -out newcert.pem " .
131							"-infiles newreq.pem");
132	    $RET=$?;
133	    print "Signed certificate is in newcert.pem\n";
134	} elsif (/^(-signCA)$/) {
135	    system ("$CA -policy policy_anything -out newcert.pem " .
136					"-extensions v3_ca -infiles newreq.pem");
137	    $RET=$?;
138	    print "Signed CA certificate is in newcert.pem\n";
139	} elsif (/^-signcert$/) {
140	    system ("$X509 -x509toreq -in newreq.pem -signkey newreq.pem " .
141								"-out tmp.pem");
142	    system ("$CA -policy policy_anything -out newcert.pem " .
143							"-infiles tmp.pem");
144	    $RET = $?;
145	    print "Signed certificate is in newcert.pem\n";
146	} elsif (/^-verify$/) {
147	    if (shift) {
148		foreach $j (@ARGV) {
149		    system ("$VERIFY -CAfile $CATOP/$CACERT $j");
150		    $RET=$? if ($? != 0);
151		}
152		exit $RET;
153	    } else {
154		    system ("$VERIFY -CAfile $CATOP/$CACERT newcert.pem");
155		    $RET=$?;
156	    	    exit 0;
157	    }
158	} else {
159	    print STDERR "Unknown arg $_\n";
160	    print STDERR "usage: CA -newcert|-newreq|-newreq-nodes|-newca|-sign|-verify\n";
161	    exit 1;
162	}
163}
164
165exit $RET;
166
167sub cp_pem {
168my ($infile, $outfile, $bound) = @_;
169open IN, $infile;
170open OUT, ">$outfile";
171my $flag = 0;
172while (<IN>) {
173	$flag = 1 if (/^-----BEGIN.*$bound/) ;
174	print OUT $_ if ($flag);
175	if (/^-----END.*$bound/) {
176		close IN;
177		close OUT;
178		return;
179	}
180}
181}
182
183