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tools: bundle mk-ca-bundle.pl from upstream curl

v0.11.9-release
Ben Noordhuis 11 years ago
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a48b647162
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5ab863de22
1 changed files with 241 additions and 0 deletions
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  1. 241
      tools/mk-ca-bundle.pl

241
tools/mk-ca-bundle.pl
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#!/usr/bin/perl -w
# ***************************************************************************
# * _ _ ____ _
# * Project ___| | | | _ \| |
# * / __| | | | |_) | |
# * | (__| |_| | _ <| |___
# * \___|\___/|_| \_\_____|
# *
# * Copyright (C) 1998 - 2013, 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 http://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_f $opt_h $opt_i $opt_l $opt_n $opt_q $opt_t $opt_u $opt_v $opt_w);
my $url = 'http://mxr.mozilla.org/mozilla/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 = '1.19';
$opt_w = 76; # default base64 encoded lines length
$0 =~ s@.*(/|\\)@@;
$Getopt::Std::STANDARD_HELP_VERSION = 1;
getopts('bfhilnqtuvw:');
if ($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 : ${LWP::VERSION}\n";
print ("=" x 78 . "\n");
}
sub HELP_MESSAGE() {
print "Usage:\t${0} [-b] [-f] [-i] [-l] [-n] [-q] [-t] [-u] [-v] [-w<l>] [<outputfile>]\n";
print "\t-b\tbackup an existing version of ca-bundle.crt\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 "\t-q\tbe really quiet (no progress output at all)\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 ${^O}\n";
}
HELP_MESSAGE() if ($opt_h);
my $crt = $ARGV[0] || 'ca-bundle.crt';
(my $txt = $url) =~ s@(.*/|\?.*)@@g;
my $stdout = $crt eq '-';
my $resp;
my $fetched;
unless ($opt_n and -e $txt) {
print STDERR "Downloading '$txt' ...\n" if (!$opt_q);
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;
}
}
my $currentdate = scalar gmtime($fetched ? $resp->last_modified : (stat($txt))[9]);
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;
##
## $crt -- Bundle of CA Root Certificates
##
## Certificate data from Mozilla as of: ${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 ${format}PEM format and therefore
## can be directly used with curl / libcurl / php_curl, or with
## an Apache+mod_ssl webserver for SSL client authentication.
## Just configure this file as the SSLCACertificateFile.
##
EOT
print STDERR "Processing '$txt' ...\n" if (!$opt_q);
my $caname;
my $certnum = 0;
my $skipnum = 0;
my $start_of_cert = 0;
open(TXT,"$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 ($opt_l);
last if (/\*\*\*\*\* END LICENSE BLOCK \*\*\*\*\*/);
}
}
next if /^#|^\s*$/;
chomp;
if (/^CVS_ID\s+\"(.*)\"/) {
print CRT "# $1\n";
}
# 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 $untrusted = 1;
if ($start_of_cert && /^CKA_VALUE MULTILINE_OCTAL/) {
my $data;
while (<TXT>) {
last if (/^END/);
chomp;
my @octets = split(/\\/);
shift @octets;
for (@octets) {
$data .= chr(oct);
}
}
# scan forwards until the trust part
while (<TXT>) {
last if (/^CKA_CLASS CK_OBJECT_CLASS CKO_NSS_TRUST/);
chomp;
}
# now scan the trust part for untrusted certs
while (<TXT>) {
last if (/^#/);
if (/^CKA_TRUST_SERVER_AUTH\s+CK_TRUST\s+CKT_NSS_TRUSTED_DELEGATOR$/) {
$untrusted = 0;
}
}
if ($untrusted) {
$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 ("=" x length($caname) . "\n");
if (!$opt_t) {
print CRT $pem;
} else {
my $pipe = "|$openssl x509 -md5 -fingerprint -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;
}
}
}
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 STDERR "Done ($certnum CA certs processed, $skipnum untrusted skipped).\n" if (!$opt_q);
exit;
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