tools: customize mk-ca-bundle.pl

Remove unneeded functionality and tweak the generated output so we
can #include it in C++ source code.

Author: bnoordhuis

tools/mk-ca-bundle.pl

@@ -30,19 +30,19 @@
 # dependency is the OpenSSL commandline tool for optional text listing.
 # Hacked by Guenter Knauf.
 #
+use File::Basename 'dirname';
 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 $opt_w);
+use vars qw($opt_h $opt_i $opt_l $opt_q $opt_t $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';
 
-$opt_w = 76; # default base64 encoded lines length
+$opt_w = 72; # default base64 encoded lines length
 
 $0 =~ s@.*(/|\\)@@;
 $Getopt::Std::STANDARD_HELP_VERSION = 1;
@@ -55,21 +55,15 @@
   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${0} [-b] [-f] [-i] [-l] [-n] [-q] [-t] [-u] [-v] [-w<l>] [<outputfile>]\n";
-  print "\t-b\tbackup an existing version of ca-bundle.crt\n";
-  print "\t-f\tforce rebuild even if certdata.txt is current\n";
+  print "Usage:\t${0} [-i] [-l] [-q] [-t] [-v] [-w<l>] [<outputfile>]\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;
@@ -81,56 +75,36 @@ ()
 
 HELP_MESSAGE() if ($opt_h);
 
-my $crt = $ARGV[0] || 'ca-bundle.crt';
-(my $txt = $url) =~ s@(.*/|\?.*)@@g;
+my $crt = $ARGV[0] || dirname(__FILE__) . '/../src/node_root_certs.h';
+my $txt = dirname(__FILE__) . '/certdata.txt';
 
 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.~: $!\n";
+    open(CRT,">$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.
-##
+/* $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
 
@@ -154,7 +128,7 @@ ()
   next if /^#|^\s*$/;
   chomp;
   if (/^CVS_ID\s+\"(.*)\"/) {
-    print CRT "# $1\n";
+    print CRT "/* $1 */\n";
   }
 
   # this is a match for the start of a certificate
@@ -192,25 +166,24 @@ ()
       $skipnum ++;
     } else {
       my $encoded = MIME::Base64::encode_base64($data, '');
-      $encoded =~ s/(.{1,${opt_w}})/$1\n/g;
-      my $pem = "-----BEGIN CERTIFICATE-----\n"
+      $encoded =~ s/(.{1,${opt_w}})/"$1\\n"\n/g;
+      my $pem = "\"-----BEGIN CERTIFICATE-----\\n\"\n"
               . $encoded
-              . "-----END CERTIFICATE-----\n";
-      print CRT "\n$caname\n";
-      print CRT ("=" x length($caname) . "\n");
+              . "\"-----END CERTIFICATE-----\\n\",\n";
+      print CRT "\n/* $caname */\n";
       if (!$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.~: $!";
+          $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.~: $!";
+          open(CRT, ">>$crt") or die "Couldn't open $crt: $!";
         }
       }
       print STDERR "Parsing: $caname\n" if ($opt_v);
@@ -220,20 +193,7 @@ ()
   }
 }
 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);
+close(CRT) or die "Couldn't close $crt: $!\n";
 print STDERR "Done ($certnum CA certs processed, $skipnum untrusted skipped).\n" if (!$opt_q);
 
 exit;