1#!/usr/local/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";	# 1 year
49$CADAYS="-days 1095";	# 3 years
50$REQ="$openssl req $SSLEAY_CONFIG";
51$CA="$openssl ca $SSLEAY_CONFIG";
52$VERIFY="$openssl verify";
53$X509="$openssl x509";
54$PKCS12="$openssl pkcs12";
55
56$CATOP="./demoCA";
57$CAKEY="cakey.pem";
58$CAREQ="careq.pem";
59$CACERT="cacert.pem";
60
61$DIRMODE = 0777;
62
63$RET = 0;
64
65foreach (@ARGV) {
66	if ( /^(-\?|-h|-help)$/ ) {
67	    print STDERR "usage: CA -newcert|-newreq|-newreq-nodes|-newca|-sign|-verify\n";
68	    exit 0;
69	} elsif (/^-newcert$/) {
70	    # create a certificate
71	    system ("$REQ -new -x509 -keyout newkey.pem -out newcert.pem $DAYS");
72	    $RET=$?;
73	    print "Certificate is in newcert.pem, private key is in newkey.pem\n"
74	} elsif (/^-newreq$/) {
75	    # create a certificate request
76	    system ("$REQ -new -keyout newkey.pem -out newreq.pem $DAYS");
77	    $RET=$?;
78	    print "Request is in newreq.pem, private key is in newkey.pem\n";
79	} elsif (/^-newreq-nodes$/) {
80	    # create a certificate request
81	    system ("$REQ -new -nodes -keyout newkey.pem -out newreq.pem $DAYS");
82	    $RET=$?;
83	    print "Request is in newreq.pem, private key is in newkey.pem\n";
84	} elsif (/^-newca$/) {
85		# if explicitly asked for or it doesn't exist then setup the
86		# directory structure that Eric likes to manage things 
87	    $NEW="1";
88	    if ( "$NEW" || ! -f "${CATOP}/serial" ) {
89		# create the directory hierarchy
90		mkdir $CATOP, $DIRMODE;
91		mkdir "${CATOP}/certs", $DIRMODE;
92		mkdir "${CATOP}/crl", $DIRMODE ;
93		mkdir "${CATOP}/newcerts", $DIRMODE;
94		mkdir "${CATOP}/private", $DIRMODE;
95		open OUT, ">${CATOP}/index.txt";
96		close OUT;
97		open OUT, ">${CATOP}/crlnumber";
98		print OUT "01\n";
99		close OUT;
100	    }
101	    if ( ! -f "${CATOP}/private/$CAKEY" ) {
102		print "CA certificate filename (or enter to create)\n";
103		$FILE = <STDIN>;
104
105		chop $FILE;
106
107		# ask user for existing CA certificate
108		if ($FILE) {
109		    cp_pem($FILE,"${CATOP}/private/$CAKEY", "PRIVATE");
110		    cp_pem($FILE,"${CATOP}/$CACERT", "CERTIFICATE");
111		    $RET=$?;
112		} else {
113		    print "Making CA certificate ...\n";
114		    system ("$REQ -new -keyout " .
115			"${CATOP}/private/$CAKEY -out ${CATOP}/$CAREQ");
116		    system ("$CA -create_serial " .
117			"-out ${CATOP}/$CACERT $CADAYS -batch " . 
118			"-keyfile ${CATOP}/private/$CAKEY -selfsign " .
119			"-extensions v3_ca " .
120			"-infiles ${CATOP}/$CAREQ ");
121		    $RET=$?;
122		}
123	    }
124	} elsif (/^-pkcs12$/) {
125	    my $cname = $ARGV[1];
126	    $cname = "My Certificate" unless defined $cname;
127	    system ("$PKCS12 -in newcert.pem -inkey newkey.pem " .
128			"-certfile ${CATOP}/$CACERT -out newcert.p12 " .
129			"-export -name \"$cname\"");
130	    $RET=$?;
131	    print "PKCS #12 file is in newcert.p12\n";
132	    exit $RET;
133	} elsif (/^-xsign$/) {
134	    system ("$CA -policy policy_anything -infiles newreq.pem");
135	    $RET=$?;
136	} elsif (/^(-sign|-signreq)$/) {
137	    system ("$CA -policy policy_anything -out newcert.pem " .
138							"-infiles newreq.pem");
139	    $RET=$?;
140	    print "Signed certificate is in newcert.pem\n";
141	} elsif (/^(-signCA)$/) {
142	    system ("$CA -policy policy_anything -out newcert.pem " .
143					"-extensions v3_ca -infiles newreq.pem");
144	    $RET=$?;
145	    print "Signed CA certificate is in newcert.pem\n";
146	} elsif (/^-signcert$/) {
147	    system ("$X509 -x509toreq -in newreq.pem -signkey newreq.pem " .
148								"-out tmp.pem");
149	    system ("$CA -policy policy_anything -out newcert.pem " .
150							"-infiles tmp.pem");
151	    $RET = $?;
152	    print "Signed certificate is in newcert.pem\n";
153	} elsif (/^-verify$/) {
154	    if (shift) {
155		foreach $j (@ARGV) {
156		    system ("$VERIFY -CAfile $CATOP/$CACERT $j");
157		    $RET=$? if ($? != 0);
158		}
159		exit $RET;
160	    } else {
161		    system ("$VERIFY -CAfile $CATOP/$CACERT newcert.pem");
162		    $RET=$?;
163	    	    exit 0;
164	    }
165	} else {
166	    print STDERR "Unknown arg $_\n";
167	    print STDERR "usage: CA -newcert|-newreq|-newreq-nodes|-newca|-sign|-verify\n";
168	    exit 1;
169	}
170}
171
172exit $RET;
173
174sub cp_pem {
175my ($infile, $outfile, $bound) = @_;
176open IN, $infile;
177open OUT, ">$outfile";
178my $flag = 0;
179while (<IN>) {
180	$flag = 1 if (/^-----BEGIN.*$bound/) ;
181	print OUT $_ if ($flag);
182	if (/^-----END.*$bound/) {
183		close IN;
184		close OUT;
185		return;
186	}
187}
188}
189
190