# * | (__| |_| | _ <| |___
# * \___|\___/|_| \_\_____|
# *
-# * Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
+# * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
# *
# * This software is licensed as described in the file COPYING, which
# * you should have received as part of this distribution. The terms
use MIME::Base64;
use LWP::UserAgent;
use strict;
-use vars qw($opt_b $opt_h $opt_i $opt_l $opt_n $opt_q $opt_t $opt_u $opt_v);
+use vars qw($opt_b $opt_d $opt_f $opt_h $opt_i $opt_l $opt_n $opt_p $opt_q $opt_s $opt_t $opt_u $opt_v $opt_w);
+use List::Util;
+use Text::Wrap;
+my $MOD_SHA = "Digest::SHA";
+eval "require $MOD_SHA";
+if ($@) {
+ $MOD_SHA = "Digest::SHA::PurePerl";
+ eval "require $MOD_SHA";
+}
+
+my %urls = (
+ 'nss' =>
+ 'http://hg.mozilla.org/projects/nss/raw-file/tip/lib/ckfw/builtins/certdata.txt',
+ 'central' =>
+ 'http://hg.mozilla.org/mozilla-central/raw-file/default/security/nss/lib/ckfw/builtins/certdata.txt',
+ 'aurora' =>
+ 'http://hg.mozilla.org/releases/mozilla-aurora/raw-file/default/security/nss/lib/ckfw/builtins/certdata.txt',
+ 'beta' =>
+ 'http://hg.mozilla.org/releases/mozilla-beta/raw-file/default/security/nss/lib/ckfw/builtins/certdata.txt',
+ 'release' =>
+ 'http://hg.mozilla.org/releases/mozilla-release/raw-file/default/security/nss/lib/ckfw/builtins/certdata.txt',
+);
+
+$opt_d = 'release';
-my $url = 'http://mxr.mozilla.org/seamonkey/source/security/nss/lib/ckfw/builtins/certdata.txt?raw=1';
# If the OpenSSL commandline is not in search path you can configure it here!
my $openssl = 'openssl';
-my $version = '1.14';
+my $version = '1.25';
+
+$opt_w = 76; # default base64 encoded lines length
+
+# default cert types to include in the output (default is to include CAs which may issue SSL server certs)
+my $default_mozilla_trust_purposes = "SERVER_AUTH";
+my $default_mozilla_trust_levels = "TRUSTED_DELEGATOR";
+$opt_p = $default_mozilla_trust_purposes . ":" . $default_mozilla_trust_levels;
+
+my @valid_mozilla_trust_purposes = (
+ "DIGITAL_SIGNATURE",
+ "NON_REPUDIATION",
+ "KEY_ENCIPHERMENT",
+ "DATA_ENCIPHERMENT",
+ "KEY_AGREEMENT",
+ "KEY_CERT_SIGN",
+ "CRL_SIGN",
+ "SERVER_AUTH",
+ "CLIENT_AUTH",
+ "CODE_SIGNING",
+ "EMAIL_PROTECTION",
+ "IPSEC_END_SYSTEM",
+ "IPSEC_TUNNEL",
+ "IPSEC_USER",
+ "TIME_STAMPING",
+ "STEP_UP_APPROVED"
+);
-getopts('bhilnqtuv');
+my @valid_mozilla_trust_levels = (
+ "TRUSTED_DELEGATOR", # CAs
+ "NOT_TRUSTED", # Don't trust these certs.
+ "MUST_VERIFY_TRUST", # This explicitly tells us that it ISN'T a CA but is otherwise ok. In other words, this should tell the app to ignore any other sources that claim this is a CA.
+ "TRUSTED" # This cert is trusted, but only for itself and not for delegates (i.e. it is not a CA).
+);
+
+my $default_signature_algorithms = $opt_s = "MD5";
+
+my @valid_signature_algorithms = (
+ "MD5",
+ "SHA1",
+ "SHA256",
+ "SHA384",
+ "SHA512"
+);
+
+$0 =~ s@.*(/|\\)@@;
+$Getopt::Std::STANDARD_HELP_VERSION = 1;
+getopts('bd:fhilnp:qs:tuvw:');
+
+if(!defined($opt_d)) {
+ # to make plain "-d" use not cause warnings, and actually still work
+ $opt_d = 'release';
+}
+
+# Use predefined URL or else custom URL specified on command line.
+my $url = ( defined( $urls{$opt_d} ) ) ? $urls{$opt_d} : $opt_d;
+
+my $curl = `curl -V`;
if ($opt_i) {
print ("=" x 78 . "\n");
- print "Script Version : $version\n";
- print "Perl Version : $]\n";
- print "Operating System Name : $^O\n";
- print "Getopt::Std.pm Version : ${Getopt::Std::VERSION}\n";
- print "MIME::Base64.pm Version : ${MIME::Base64::VERSION}\n";
- print "LWP::UserAgent.pm Version : ${LWP::UserAgent::VERSION}\n";
- print "LWP.pm Version : ${LWP::VERSION}\n";
+ print "Script Version : $version\n";
+ print "Perl Version : $]\n";
+ print "Operating System Name : $^O\n";
+ print "Getopt::Std.pm Version : ${Getopt::Std::VERSION}\n";
+ print "MIME::Base64.pm Version : ${MIME::Base64::VERSION}\n";
+ print "LWP::UserAgent.pm Version : ${LWP::UserAgent::VERSION}\n";
+ print "LWP.pm Version : ${LWP::VERSION}\n";
+ print "Digest::SHA.pm Version : ${Digest::SHA::VERSION}\n" if ($Digest::SHA::VERSION);
+ print "Digest::SHA::PurePerl.pm Version : ${Digest::SHA::PurePerl::VERSION}\n" if ($Digest::SHA::PurePerl::VERSION);
print ("=" x 78 . "\n");
}
-$0 =~ s/\\/\//g;
-$0 = substr($0, rindex($0, '/') + 1);
-if ($opt_h) {
- printf("Usage:\t%s [-b] [-i] [-l] [-n] [-q] [-t] [-u] [-v] [<outputfile>]\n", $0);
+sub warning_message() {
+ if ( $opt_d =~ m/^risk$/i ) { # Long Form Warning and Exit
+ print "Warning: Use of this script may pose some risk:\n";
+ print "\n";
+ print " 1) Using http is subject to man in the middle attack of certdata content\n";
+ print " 2) Default to 'release', but more recent updates may be found in other trees\n";
+ print " 3) certdata.txt file format may change, lag time to update this script\n";
+ print " 4) Generally unwise to blindly trust CAs without manual review & verification\n";
+ print " 5) Mozilla apps use additional security checks aren't represented in certdata\n";
+ print " 6) Use of this script will make a security engineer grind his teeth and\n";
+ print " swear at you. ;)\n";
+ exit;
+ } else { # Short Form Warning
+ print "Warning: Use of this script may pose some risk, -d risk for more details.\n";
+ }
+}
+
+sub HELP_MESSAGE() {
+ print "Usage:\t${0} [-b] [-d<certdata>] [-f] [-i] [-l] [-n] [-p<purposes:levels>] [-q] [-s<algorithms>] [-t] [-u] [-v] [-w<l>] [<outputfile>]\n";
print "\t-b\tbackup an existing version of ca-bundle.crt\n";
+ print "\t-d\tspecify Mozilla tree to pull certdata.txt or custom URL\n";
+ print "\t\t Valid names are:\n";
+ print "\t\t ", join( ", ", map { ( $_ =~ m/$opt_d/ ) ? "$_ (default)" : "$_" } sort keys %urls ), "\n";
+ print "\t-f\tforce rebuild even if certdata.txt is current\n";
print "\t-i\tprint version info about used modules\n";
print "\t-l\tprint license info about certdata.txt\n";
print "\t-n\tno download of certdata.txt (to use existing)\n";
+ print wrap("\t","\t\t", "-p\tlist of Mozilla trust purposes and levels for certificates to include in output. Takes the form of a comma separated list of purposes, a colon, and a comma separated list of levels. (default: $default_mozilla_trust_purposes:$default_mozilla_trust_levels)"), "\n";
+ print "\t\t Valid purposes are:\n";
+ print wrap("\t\t ","\t\t ", join( ", ", "ALL", @valid_mozilla_trust_purposes ) ), "\n";
+ print "\t\t Valid levels are:\n";
+ print wrap("\t\t ","\t\t ", join( ", ", "ALL", @valid_mozilla_trust_levels ) ), "\n";
print "\t-q\tbe really quiet (no progress output at all)\n";
+ print wrap("\t","\t\t", "-s\tcomma separated list of certificate signatures/hashes to output in plain text mode. (default: $default_signature_algorithms)\n");
+ print "\t\t Valid signature algorithms are:\n";
+ print wrap("\t\t ","\t\t ", join( ", ", "ALL", @valid_signature_algorithms ) ), "\n";
print "\t-t\tinclude plain text listing of certificates\n";
print "\t-u\tunlink (remove) certdata.txt after processing\n";
print "\t-v\tbe verbose and print out processed CAs\n";
+ print "\t-w <l>\twrap base64 output lines after <l> chars (default: ${opt_w})\n";
exit;
}
+sub VERSION_MESSAGE() {
+ print "${0} version ${version} running Perl ${]} on ${^O}\n";
+}
+
+warning_message() unless ($opt_q || $url =~ m/^(ht|f)tps:/i );
+HELP_MESSAGE() if ($opt_h);
+
+sub is_in_list($@) {
+ my $target = shift;
+
+ return defined(List::Util::first { $target eq $_ } @_);
+}
+
+# Parses $param_string as a case insensitive comma separated list with optional whitespace
+# validates that only allowed parameters are supplied
+sub parse_csv_param($$@) {
+ my $description = shift;
+ my $param_string = shift;
+ my @valid_values = @_;
+
+ my @values = map {
+ s/^\s+//; # strip leading spaces
+ s/\s+$//; # strip trailing spaces
+ uc $_ # return the modified string as upper case
+ } split( ',', $param_string );
+
+ # Find all values which are not in the list of valid values or "ALL"
+ my @invalid = grep { !is_in_list($_,"ALL",@valid_values) } @values;
+
+ if ( scalar(@invalid) > 0 ) {
+ # Tell the user which parameters were invalid and print the standard help message which will exit
+ print "Error: Invalid ", $description, scalar(@invalid) == 1 ? ": " : "s: ", join( ", ", map { "\"$_\"" } @invalid ), "\n";
+ HELP_MESSAGE();
+ }
+
+ @values = @valid_values if ( is_in_list("ALL",@values) );
+
+ return @values;
+}
+
+sub sha1 {
+ my $result;
+ if ($Digest::SHA::VERSION || $Digest::SHA::PurePerl::VERSION) {
+ open(FILE, $_[0]) or die "Can't open '$_[0]': $!";
+ binmode(FILE);
+ $result = $MOD_SHA->new(1)->addfile(*FILE)->hexdigest;
+ close(FILE);
+ } else {
+ # Use OpenSSL command if Perl Digest::SHA modules not available
+ $result = (split(/ |\r|\n/,`$openssl dgst -sha1 $_[0]`))[1];
+ }
+ return $result;
+}
+
+
+sub oldsha1 {
+ my $sha1 = "";
+ open(C, "<$_[0]") || return 0;
+ while(<C>) {
+ chomp;
+ if($_ =~ /^\#\# SHA1: (.*)/) {
+ $sha1 = $1;
+ last;
+ }
+ }
+ close(C);
+ return $sha1;
+}
+
+if ( $opt_p !~ m/:/ ) {
+ print "Error: Mozilla trust identifier list must include both purposes and levels\n";
+ HELP_MESSAGE();
+}
+
+(my $included_mozilla_trust_purposes_string, my $included_mozilla_trust_levels_string) = split( ':', $opt_p );
+my @included_mozilla_trust_purposes = parse_csv_param( "trust purpose", $included_mozilla_trust_purposes_string, @valid_mozilla_trust_purposes );
+my @included_mozilla_trust_levels = parse_csv_param( "trust level", $included_mozilla_trust_levels_string, @valid_mozilla_trust_levels );
+
+my @included_signature_algorithms = parse_csv_param( "signature algorithm", $opt_s, @valid_signature_algorithms );
+
+sub should_output_cert(%) {
+ my %trust_purposes_by_level = @_;
+
+ foreach my $level (@included_mozilla_trust_levels) {
+ # for each level we want to output, see if any of our desired purposes are included
+ return 1 if ( defined( List::Util::first { is_in_list( $_, @included_mozilla_trust_purposes ) } @{$trust_purposes_by_level{$level}} ) );
+ }
+
+ return 0;
+}
+
my $crt = $ARGV[0] || 'ca-bundle.crt';
-my $txt = substr($url, rindex($url, '/') + 1);
-$txt =~ s/\?.*//;
+(my $txt = $url) =~ s@(.*/|\?.*)@@g;
-if (!$opt_n || !-e $txt) {
- print "Downloading '$txt' ...\n" if (!$opt_q);
- my $ua = new LWP::UserAgent(agent => "$0/$version");
- my $req = new HTTP::Request('GET', $url);
- my $res = $ua->request($req);
- if ($res->is_success) {
- open(TXT,">$txt") or die "Couldn't open $txt: $!";
- print TXT $res->content . "\n";
- close(TXT) or die "Couldn't close $txt: $!";
+my $stdout = $crt eq '-';
+my $resp;
+my $fetched;
+
+my $oldsha1 = oldsha1($crt);
+
+print STDERR "SHA1 of old file: $oldsha1\n" if (!$opt_q);
+
+print STDERR "Downloading '$txt' ...\n" if (!$opt_q);
+
+if($curl && !$opt_n) {
+ my $https = $url;
+ $https =~ s/^http:/https:/;
+ print STDERR "Get certdata over HTTPS with curl!\n" if (!$opt_q);
+ my $quiet = $opt_q ? "-s" : "";
+ my @out = `curl -w %{response_code} $quiet -O $https`;
+ if(@out && $out[0] == 200) {
+ $fetched = 1;
} else {
- die $res->status_line;
+ print STDERR "Failed downloading HTTPS with curl, trying HTTP with LWP\n" if (!$opt_q);
}
}
-if ($opt_b && -e $crt) {
- my $bk = 1;
- while (-e "$crt.~${bk}~") {
- $bk++;
+unless ($fetched || ($opt_n and -e $txt)) {
+ my $ua = new LWP::UserAgent(agent => "$0/$version");
+ $ua->env_proxy();
+ $resp = $ua->mirror($url, $txt);
+ if ($resp && $resp->code eq '304') {
+ print STDERR "Not modified\n" unless $opt_q;
+ exit 0 if -e $crt && !$opt_f;
+ } else {
+ $fetched = 1;
+ }
+ if( !$resp || $resp->code !~ /^(?:200|304)$/ ) {
+ print STDERR "Unable to download latest data: "
+ . ($resp? $resp->code . ' - ' . $resp->message : "LWP failed") . "\n"
+ unless $opt_q;
+ exit 1 if -e $crt || ! -r $txt;
}
- rename $crt, "$crt.~${bk}~";
}
+my $filedate = $resp ? $resp->last_modified : (stat($txt))[9];
+my $datesrc = "as of";
+if(!$filedate) {
+ # mxr.mozilla.org gave us a time, hg.mozilla.org does not!
+ $filedate = time();
+ $datesrc="downloaded on";
+}
+
+# get the hash from the download file
+my $newsha1= sha1($txt);
+
+if(!$opt_f && $oldsha1 eq $newsha1) {
+ print STDERR "Downloaded file identical to previous run\'s source file. Exiting\n";
+ exit;
+}
+
+print STDERR "SHA1 of new file: $newsha1\n";
+
+my $currentdate = scalar gmtime($filedate);
+
my $format = $opt_t ? "plain text and " : "";
-my $currentdate = scalar gmtime() . " UTC";
-open(CRT,">$crt") or die "Couldn't open $crt: $!";
+if( $stdout ) {
+ open(CRT, '> -') or die "Couldn't open STDOUT: $!\n";
+} else {
+ open(CRT,">$crt.~") or die "Couldn't open $crt.~: $!\n";
+}
print CRT <<EOT;
##
-## $crt -- Bundle of CA Root Certificates
+## Bundle of CA Root Certificates
##
-## Converted at: ${currentdate}
+## Certificate data from Mozilla ${datesrc}: ${currentdate}
##
## This is a bundle of X.509 certificates of public Certificate Authorities
## (CA). These were automatically extracted from Mozilla's root certificates
## file (certdata.txt). This file can be found in the mozilla source tree:
-## '/mozilla/security/nss/lib/ckfw/builtins/certdata.txt'
+## ${url}
##
## It contains the certificates in ${format}PEM format and therefore
## can be directly used with curl / libcurl / php_curl, or with
## an Apache+mod_ssl webserver for SSL client authentication.
## Just configure this file as the SSLCACertificateFile.
##
+## Conversion done with mk-ca-bundle.pl version $version.
+## SHA1: $newsha1
+##
EOT
-close(CRT) or die "Couldn't close $crt: $!";
-
-print "Processing '$txt' ...\n" if (!$opt_q);
+print STDERR "Processing '$txt' ...\n" if (!$opt_q);
my $caname;
my $certnum = 0;
-open(TXT,"$txt") or die "Couldn't open $txt: $!";
+my $skipnum = 0;
+my $start_of_cert = 0;
+
+open(TXT,"$txt") or die "Couldn't open $txt: $!\n";
while (<TXT>) {
if (/\*\*\*\*\* BEGIN LICENSE BLOCK \*\*\*\*\*/) {
- open(CRT, ">>$crt") or die "Couldn't open $crt: $!";
print CRT;
print if ($opt_l);
while (<TXT>) {
print if ($opt_l);
last if (/\*\*\*\*\* END LICENSE BLOCK \*\*\*\*\*/);
}
- close(CRT) or die "Couldn't close $crt: $!";
}
next if /^#|^\s*$/;
chomp;
if (/^CVS_ID\s+\"(.*)\"/) {
- open(CRT, ">>$crt") or die "Couldn't open $crt: $!";
print CRT "# $1\n";
- close(CRT) or die "Couldn't close $crt: $!";
}
- if (/^CKA_LABEL\s+[A-Z0-9]+\s+\"(.*)\"/) {
+
+ # this is a match for the start of a certificate
+ if (/^CKA_CLASS CK_OBJECT_CLASS CKO_CERTIFICATE/) {
+ $start_of_cert = 1
+ }
+ if ($start_of_cert && /^CKA_LABEL UTF8 \"(.*)\"/) {
$caname = $1;
}
- if (/^CKA_VALUE MULTILINE_OCTAL/) {
+ my %trust_purposes_by_level;
+ if ($start_of_cert && /^CKA_VALUE MULTILINE_OCTAL/) {
my $data;
while (<TXT>) {
last if (/^END/);
$data .= chr(oct);
}
}
- my $pem = "-----BEGIN CERTIFICATE-----\n"
- . MIME::Base64::encode($data)
- . "-----END CERTIFICATE-----\n";
- open(CRT, ">>$crt") or die "Couldn't open $crt: $!";
- print CRT "\n$caname\n";
- print CRT ("=" x length($caname) . "\n");
- if (!$opt_t) {
- print CRT $pem;
+ # scan forwards until the trust part
+ while (<TXT>) {
+ last if (/^CKA_CLASS CK_OBJECT_CLASS CKO_NSS_TRUST/);
+ chomp;
+ }
+ # now scan the trust part to determine how we should trust this cert
+ while (<TXT>) {
+ last if (/^#/);
+ if (/^CKA_TRUST_([A-Z_]+)\s+CK_TRUST\s+CKT_NSS_([A-Z_]+)\s*$/) {
+ if ( !is_in_list($1,@valid_mozilla_trust_purposes) ) {
+ print STDERR "Warning: Unrecognized trust purpose for cert: $caname. Trust purpose: $1. Trust Level: $2\n" if (!$opt_q);
+ } elsif ( !is_in_list($2,@valid_mozilla_trust_levels) ) {
+ print STDERR "Warning: Unrecognized trust level for cert: $caname. Trust purpose: $1. Trust Level: $2\n" if (!$opt_q);
+ } else {
+ push @{$trust_purposes_by_level{$2}}, $1;
+ }
+ }
}
- close(CRT) or die "Couldn't close $crt: $!";
- if ($opt_t) {
- open(TMP, "|$openssl x509 -md5 -fingerprint -text -inform PEM >> $crt") or die "Couldn't open openssl pipe: $!";
- print TMP $pem;
- close(TMP) or die "Couldn't close openssl pipe: $!";
+
+ if ( !should_output_cert(%trust_purposes_by_level) ) {
+ $skipnum ++;
+ } else {
+ my $encoded = MIME::Base64::encode_base64($data, '');
+ $encoded =~ s/(.{1,${opt_w}})/$1\n/g;
+ my $pem = "-----BEGIN CERTIFICATE-----\n"
+ . $encoded
+ . "-----END CERTIFICATE-----\n";
+ print CRT "\n$caname\n";
+
+ my $maxStringLength = length($caname);
+ if ($opt_t) {
+ foreach my $key (keys %trust_purposes_by_level) {
+ my $string = $key . ": " . join(", ", @{$trust_purposes_by_level{$key}});
+ $maxStringLength = List::Util::max( length($string), $maxStringLength );
+ print CRT $string . "\n";
+ }
+ }
+ print CRT ("=" x $maxStringLength . "\n");
+ if (!$opt_t) {
+ print CRT $pem;
+ } else {
+ my $pipe = "";
+ foreach my $hash (@included_signature_algorithms) {
+ $pipe = "|$openssl x509 -" . $hash . " -fingerprint -noout -inform PEM";
+ if (!$stdout) {
+ $pipe .= " >> $crt.~";
+ close(CRT) or die "Couldn't close $crt.~: $!";
+ }
+ open(TMP, $pipe) or die "Couldn't open openssl pipe: $!";
+ print TMP $pem;
+ close(TMP) or die "Couldn't close openssl pipe: $!";
+ if (!$stdout) {
+ open(CRT, ">>$crt.~") or die "Couldn't open $crt.~: $!";
+ }
+ }
+ $pipe = "|$openssl x509 -text -inform PEM";
+ if (!$stdout) {
+ $pipe .= " >> $crt.~";
+ close(CRT) or die "Couldn't close $crt.~: $!";
+ }
+ open(TMP, $pipe) or die "Couldn't open openssl pipe: $!";
+ print TMP $pem;
+ close(TMP) or die "Couldn't close openssl pipe: $!";
+ if (!$stdout) {
+ open(CRT, ">>$crt.~") or die "Couldn't open $crt.~: $!";
+ }
+ }
+ print STDERR "Parsing: $caname\n" if ($opt_v);
+ $certnum ++;
+ $start_of_cert = 0;
}
- print "Parsing: $caname\n" if ($opt_v);
- $certnum ++;
}
}
-close(TXT) or die "Couldn't close $txt: $!";
+close(TXT) or die "Couldn't close $txt: $!\n";
+close(CRT) or die "Couldn't close $crt.~: $!\n";
+unless( $stdout ) {
+ if ($opt_b && -e $crt) {
+ my $bk = 1;
+ while (-e "$crt.~${bk}~") {
+ $bk++;
+ }
+ rename $crt, "$crt.~${bk}~" or die "Failed to create backup $crt.~$bk}~: $!\n";
+ } elsif( -e $crt ) {
+ unlink( $crt ) or die "Failed to remove $crt: $!\n";
+ }
+ rename "$crt.~", $crt or die "Failed to rename $crt.~ to $crt: $!\n";
+}
unlink $txt if ($opt_u);
-print "Done ($certnum CA certs processed).\n" if (!$opt_q);
-
-exit;
-
-
+print STDERR "Done ($certnum CA certs processed, $skipnum skipped).\n" if (!$opt_q);
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