-#!/usr/bin/env perl -w
+#!/usr/bin/env perl
#
# InspIRCd -- Internet Relay Chat Daemon
#
return $answer ? $answer : $default;
}
-if ($#ARGV != 0 || $ARGV[0] !~ /gnutls|openssl/i) {
- print "Syntax: genssl <gnutls|openssl>\n";
+if ($#ARGV != 0 || $ARGV[0] !~ /^(?:auto|gnutls|openssl)$/i) {
+ print "Syntax: genssl <auto|gnutls|openssl>\n";
exit 1;
}
+# On OS X the GnuTLS certtool is prefixed to avoid collision with the system certtool.
+my $certtool = $^O eq 'darwin' ? 'gnutls-certtool' : 'certtool';
+
+# Check whether the user has the required tools installed.
+my $has_gnutls = `$certtool --version v 2>/dev/null`;
+my $has_openssl = !system 'openssl version >/dev/null 2>&1';
+
+# The framework the user has specified.
+my $tool = lc $ARGV[0];
+
+# If the user has not explicitly specified a framework then detect one.
+if ($tool eq 'auto') {
+ if ($has_gnutls) {
+ $tool = 'gnutls';
+ } elsif ($has_openssl) {
+ $tool = 'openssl';
+ } else {
+ print STDERR "SSL generation failed: could not find $certtool or openssl in the PATH!\n";
+ exit 1;
+ }
+} elsif ($tool eq 'gnutls' && !$has_gnutls) {
+ print STDERR "SSL generation failed: could not find '$certtool' in the PATH!\n";
+ exit 1;
+} elsif ($tool eq 'openssl' && !$has_openssl) {
+ print STDERR "SSL generation failed: could not find 'openssl' in the PATH!\n";
+ exit 1;
+}
+
+# Harvest information needed to generate the certificate.
my $common_name = prompt('What is the hostname of your server?', 'irc.example.com');
my $email = prompt('What email address can you be contacted at?', 'example@example.com');
my $unit = prompt('What is the name of your unit?', 'Server Admins');
my $country = prompt('What is the ISO 3166-1 code for the country you are located in?', 'XZ');
my $days = prompt('How many days do you want your certificate to be valid for?', '365');
+# Contains the SSL certificate in DER form.
+my $dercert;
+
# Contains the exit code of openssl/gnutls-certtool.
my $status = 0;
-if (lc $ARGV[0] eq 'gnutls') {
+if ($tool eq 'gnutls') {
+ $has_gnutls =~ /certtool.+?(\d+\.\d+)/;
+ my $sec_param = $1 lt '2.10' ? '--bits 2048' : '--sec-param normal';
my $tmp = new File::Temp();
print $tmp <<__GNUTLS_END__;
cn = "$common_name"
time_stamping_key
__GNUTLS_END__
close($tmp);
- my $certtool = `uname -s` eq "Darwin\n" ? 'gnutls-certtool' : 'certtool';
- $status ||= system "$certtool --version >/dev/null 2>1";
- $status ||= system "$certtool --generate-privkey --outfile key.pem";
+ $status ||= system "$certtool --generate-privkey $sec_param --outfile key.pem";
$status ||= system "$certtool --generate-self-signed --load-privkey key.pem --outfile cert.pem --template $tmp";
-} elsif (lc $ARGV[0] eq 'openssl') {
+ $status ||= system "$certtool --generate-dh-params $sec_param --outfile dhparams.pem";
+ $dercert = `$certtool --certificate-info --infile cert.pem --outder` unless $status;
+} elsif ($tool eq 'openssl') {
my $tmp = new File::Temp();
print $tmp <<__OPENSSL_END__;
$country
$email
__OPENSSL_END__
close($tmp);
- $status ||= system 'openssl version >/dev/null 2>1';
$status ||= system "cat $tmp | openssl req -x509 -nodes -newkey rsa:2048 -keyout key.pem -out cert.pem -days $days 2>/dev/null";
$status ||= system 'openssl dhparam -out dhparams.pem 2048';
+ $dercert = `openssl x509 -in cert.pem -outform DER` unless $status;
}
if ($status) {
- print "SSL generation failed! Are you missing an $ARGV[0] binary package?\n";
+ print STDERR "SSL generation failed: $tool exited with a non-zero status!\n";
exit 1;
}
+if (defined $dercert && eval 'use Digest::SHA; 1') {
+ my $hash = Digest::SHA->new(256);
+ $hash->add($dercert);
+ print "\nAdd this TLSA record to your domain for DANE support:\n";
+ print "_6697._tcp." . $common_name . " TLSA 3 0 1 " . $hash->hexdigest . "\n";
+}