mirror of
https://github.com/moparisthebest/curl
synced 2024-11-15 14:05:03 -05:00
8fa20da8e1
This hash is used to verify the original downloaded certificate bundle and also included in the generated bundle's comment header. Also rename related internal symbols to algorithm-agnostic names.
508 lines
17 KiB
Perl
Executable File
508 lines
17 KiB
Perl
Executable File
#!/usr/bin/perl -w
|
|
# ***************************************************************************
|
|
# * _ _ ____ _
|
|
# * Project ___| | | | _ \| |
|
|
# * / __| | | | |_) | |
|
|
# * | (__| |_| | _ <| |___
|
|
# * \___|\___/|_| \_\_____|
|
|
# *
|
|
# * Copyright (C) 1998 - 2016, 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
|
|
# * are also available at https://curl.haxx.se/docs/copyright.html.
|
|
# *
|
|
# * You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
# * copies of the Software, and permit persons to whom the Software is
|
|
# * furnished to do so, under the terms of the COPYING file.
|
|
# *
|
|
# * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
# * KIND, either express or implied.
|
|
# *
|
|
# ***************************************************************************
|
|
# This Perl script creates a fresh ca-bundle.crt file for use with libcurl.
|
|
# It downloads certdata.txt from Mozilla's source tree (see URL below),
|
|
# then parses certdata.txt and extracts CA Root Certificates into PEM format.
|
|
# These are then processed with the OpenSSL commandline tool to produce the
|
|
# final ca-bundle.crt file.
|
|
# The script is based on the parse-certs script written by Roland Krikava.
|
|
# This Perl script works on almost any platform since its only external
|
|
# dependency is the OpenSSL commandline tool for optional text listing.
|
|
# Hacked by Guenter Knauf.
|
|
#
|
|
use Getopt::Std;
|
|
use MIME::Base64;
|
|
use LWP::UserAgent;
|
|
use strict;
|
|
use vars qw($opt_b $opt_d $opt_f $opt_h $opt_i $opt_l $opt_m $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';
|
|
|
|
# If the OpenSSL commandline is not in search path you can configure it here!
|
|
my $openssl = 'openssl';
|
|
|
|
my $version = '1.26';
|
|
|
|
$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"
|
|
);
|
|
|
|
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@.*(/|\\)@@;
|
|
$Getopt::Std::STANDARD_HELP_VERSION = 1;
|
|
getopts('bd:fhilmnp:qs:tuvw:');
|
|
|
|
if(!defined($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 "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");
|
|
}
|
|
|
|
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-m\tinclude meta data in output\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 report($@) {
|
|
my $output = shift;
|
|
|
|
print STDERR $output . "\n" unless $opt_q;
|
|
}
|
|
|
|
sub is_in_list($@) {
|
|
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 sha256 {
|
|
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(256)->addfile(*FILE)->hexdigest;
|
|
close(FILE);
|
|
} else {
|
|
# Use OpenSSL command if Perl Digest::SHA modules not available
|
|
$result = (split(/ |\r|\n/,`$openssl dgst -sha256 $_[0]`))[1];
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
|
|
sub oldhash {
|
|
my $hash = "";
|
|
open(C, "<$_[0]") || return 0;
|
|
while(<C>) {
|
|
chomp;
|
|
if($_ =~ /^\#\# SHA256: (.*)/) {
|
|
$hash = $1;
|
|
last;
|
|
}
|
|
}
|
|
close(C);
|
|
return $hash;
|
|
}
|
|
|
|
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 = $url) =~ s@(.*/|\?.*)@@g;
|
|
|
|
my $stdout = $crt eq '-';
|
|
my $resp;
|
|
my $fetched;
|
|
|
|
my $oldhash = oldhash($crt);
|
|
|
|
report "SHA256 of old file: $oldhash";
|
|
|
|
report "Downloading '$txt' ...";
|
|
|
|
if($curl && !$opt_n) {
|
|
my $https = $url;
|
|
$https =~ s/^http:/https:/;
|
|
report "Get certdata over HTTPS with curl!";
|
|
my $quiet = $opt_q ? "-s" : "";
|
|
my @out = `curl -w %{response_code} $quiet -O $https`;
|
|
if(@out && $out[0] == 200) {
|
|
$fetched = 1;
|
|
} else {
|
|
report "Failed downloading HTTPS with curl, trying HTTP with LWP";
|
|
}
|
|
}
|
|
|
|
unless ($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') {
|
|
report "Not modified";
|
|
exit 0 if -e $crt && !$opt_f;
|
|
} else {
|
|
$fetched = 1;
|
|
}
|
|
if( !$resp || $resp->code !~ /^(?:200|304)$/ ) {
|
|
report "Unable to download latest data: "
|
|
. ($resp? $resp->code . ' - ' . $resp->message : "LWP failed");
|
|
exit 1 if -e $crt || ! -r $txt;
|
|
}
|
|
}
|
|
|
|
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 $newhash= sha256($txt);
|
|
|
|
if(!$opt_f && $oldhash eq $newhash) {
|
|
report "Downloaded file identical to previous run\'s source file. Exiting";
|
|
exit;
|
|
}
|
|
|
|
report "SHA256 of new file: $newhash";
|
|
|
|
my $currentdate = scalar gmtime($filedate);
|
|
|
|
my $format = $opt_t ? "plain text and " : "";
|
|
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;
|
|
##
|
|
## Bundle of CA Root Certificates
|
|
##
|
|
## 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:
|
|
## ${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.
|
|
## SHA256: $newhash
|
|
##
|
|
|
|
EOT
|
|
|
|
report "Processing '$txt' ...";
|
|
my $caname;
|
|
my $certnum = 0;
|
|
my $skipnum = 0;
|
|
my $start_of_cert = 0;
|
|
my @precert;
|
|
|
|
open(TXT,"$txt") or die "Couldn't open $txt: $!\n";
|
|
while (<TXT>) {
|
|
if (/\*\*\*\*\* BEGIN LICENSE BLOCK \*\*\*\*\*/) {
|
|
print CRT;
|
|
print if ($opt_l);
|
|
while (<TXT>) {
|
|
print CRT;
|
|
print if ($opt_l);
|
|
last if (/\*\*\*\*\* END LICENSE BLOCK \*\*\*\*\*/);
|
|
}
|
|
}
|
|
elsif(/^# (Issuer|Serial Number|Subject|Not Valid Before|Not Valid After |Fingerprint \(MD5\)|Fingerprint \(SHA1\)):/) {
|
|
push @precert, $_;
|
|
next;
|
|
}
|
|
elsif(/^#|^\s*$/) {
|
|
undef @precert;
|
|
next;
|
|
}
|
|
chomp;
|
|
|
|
# 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 = $1;
|
|
}
|
|
my %trust_purposes_by_level;
|
|
if ($start_of_cert && /^CKA_VALUE MULTILINE_OCTAL/) {
|
|
my $data;
|
|
while (<TXT>) {
|
|
last if (/^END/);
|
|
chomp;
|
|
my @octets = split(/\\/);
|
|
shift @octets;
|
|
for (@octets) {
|
|
$data .= chr(oct);
|
|
}
|
|
}
|
|
# scan forwards until the trust part
|
|
while (<TXT>) {
|
|
last if (/^CKA_CLASS CK_OBJECT_CLASS CKO_NSS_TRUST/);
|
|
chomp;
|
|
}
|
|
# now scan the trust part to determine how we should trust this cert
|
|
while (<TXT>) {
|
|
last if (/^#/);
|
|
if (/^CKA_TRUST_([A-Z_]+)\s+CK_TRUST\s+CKT_NSS_([A-Z_]+)\s*$/) {
|
|
if ( !is_in_list($1,@valid_mozilla_trust_purposes) ) {
|
|
report "Warning: Unrecognized trust purpose for cert: $caname. Trust purpose: $1. Trust Level: $2";
|
|
} elsif ( !is_in_list($2,@valid_mozilla_trust_levels) ) {
|
|
report "Warning: Unrecognized trust level for cert: $caname. Trust purpose: $1. Trust Level: $2";
|
|
} else {
|
|
push @{$trust_purposes_by_level{$2}}, $1;
|
|
}
|
|
}
|
|
}
|
|
|
|
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";
|
|
print CRT @precert if($opt_m);
|
|
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.~: $!";
|
|
}
|
|
}
|
|
report "Parsing: $caname" if ($opt_v);
|
|
$certnum ++;
|
|
$start_of_cert = 0;
|
|
}
|
|
undef @precert;
|
|
}
|
|
|
|
}
|
|
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);
|
|
report "Done ($certnum CA certs processed, $skipnum skipped).";
|