#!/usr/bin/perl

# Copyright (C) 2007, 2008 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# generate-cacerts.pl generates a JKS keystore named 'cacerts' from
# OpenSSL's certificate bundle using OpenJDK's keytool.

# First extract each of OpenSSL's bundled certificates into its own
# aliased filename.

# Downloaded from http://cvs.fedoraproject.org/viewvc/rpms/ca-certificates/F-12/generate-cacerts.pl?revision=1.2
# Check and prevention of duplicate aliases added by Vlastimil Babka <caster@gentoo.org>

$file = $ARGV[1];
open(CERTS, $file);
@certs = <CERTS>;
close(CERTS);

$pem_file_count = 0;
$in_cert_block = 0;
$write_current_cert = 1;
foreach $cert (@certs)
{
    if ($cert =~ /Issuer: /)
    {
        $_ = $cert;
        if ($cert =~ /personal-freemail/)
        {
            $cert_alias = "thawtepersonalfreemailca";
        }
        elsif ($cert =~ /personal-basic/)
        {
            $cert_alias = "thawtepersonalbasicca";
        }
        elsif ($cert =~ /personal-premium/)
        {
            $cert_alias = "thawtepersonalpremiumca";
        }
        elsif ($cert =~ /server-certs/)
        {
            $cert_alias = "thawteserverca";
        }
        elsif ($cert =~ /premium-server/)
        {
            $cert_alias = "thawtepremiumserverca";
        }
        elsif ($cert =~ /Class 1 Public Primary Certification Authority$/)
        {
            $cert_alias = "verisignclass1ca";
        }
        elsif ($cert =~ /Class 1 Public Primary Certification Authority - G2/)
        {
            $cert_alias = "verisignclass1g2ca";
        }
        elsif ($cert =~
               /VeriSign Class 1 Public Primary Certification Authority - G3/)
        {
            $cert_alias = "verisignclass1g3ca";
        }
        elsif ($cert =~ /Class 2 Public Primary Certification Authority$/)
        {
            $cert_alias = "verisignclass2ca";
        }
        elsif ($cert =~ /Class 2 Public Primary Certification Authority - G2/)
        {
            $cert_alias = "verisignclass2g2ca";
        }
        elsif ($cert =~
               /VeriSign Class 2 Public Primary Certification Authority - G3/)
        {
            $cert_alias = "verisignclass2g3ca";
        }
        elsif ($cert =~ /Class 3 Public Primary Certification Authority$/)
        {
            $cert_alias = "verisignclass3ca";
        }
        # Version 1 of Class 3 Public Primary Certification Authority
        # - G2 is added.  Version 3 is excluded.  See below.
        elsif ($cert =~
               /VeriSign Class 3 Public Primary Certification Authority - G3/)
        {
            $cert_alias = "verisignclass3g3ca";
        }
        elsif ($cert =~
               /RSA Data Security.*Secure Server Certification Authority/)
        {
            $cert_alias = "verisignserverca";
        }
        elsif ($cert =~ /GTE CyberTrust Global Root/)
        {
            $cert_alias = "gtecybertrustglobalca";
        }
        elsif ($cert =~ /Baltimore CyberTrust Root/)
        {
            $cert_alias = "baltimorecybertrustca";
        }
        elsif ($cert =~ /www.entrust.net\/Client_CA_Info\/CPS/)
        {
            $cert_alias = "entrustclientca";
        }
        elsif ($cert =~ /www.entrust.net\/GCCA_CPS/)
        {
            $cert_alias = "entrustglobalclientca";
        }
        elsif ($cert =~ /www.entrust.net\/CPS_2048/)
        {
            $cert_alias = "entrust2048ca";
        }
        elsif ($cert =~ /www.entrust.net\/CPS /)
        {
            $cert_alias = "entrustsslca";
        }
        elsif ($cert =~ /www.entrust.net\/SSL_CPS/)
        {
            $cert_alias = "entrustgsslca";
        }
        elsif ($cert =~ /The Go Daddy Group/)
        {
            $cert_alias = "godaddyclass2ca";
        }
        elsif ($cert =~ /Starfield Class 2 Certification Authority/)
        {
            $cert_alias = "starfieldclass2ca";
        }
        elsif ($cert =~ /ValiCert Class 2 Policy Validation Authority/)
        {
            $cert_alias = "valicertclass2ca";
        }
        elsif ($cert =~ /GeoTrust Global CA$/)
        {
            $cert_alias = "geotrustglobalca";
        }
        elsif ($cert =~ /Equifax Secure Certificate Authority/)
        {
            $cert_alias = "equifaxsecureca";
        }
        elsif ($cert =~ /Equifax Secure eBusiness CA-1/)
        {
            $cert_alias = "equifaxsecureebusinessca1";
        }
        elsif ($cert =~ /Equifax Secure eBusiness CA-2/)
        {
            $cert_alias = "equifaxsecureebusinessca2";
        }
        elsif ($cert =~ /Equifax Secure Global eBusiness CA-1/)
        {
            $cert_alias = "equifaxsecureglobalebusinessca1";
        }
        elsif ($cert =~ /Sonera Class1 CA/)
        {
            $cert_alias = "soneraclass1ca";
        }
        elsif ($cert =~ /Sonera Class2 CA/)
        {
            $cert_alias = "soneraclass2ca";
        }
        elsif ($cert =~ /AAA Certificate Services/)
        {
            $cert_alias = "comodoaaaca";
        }
        elsif ($cert =~ /AddTrust Class 1 CA Root/)
        {
            $cert_alias = "addtrustclass1ca";
        }
        elsif ($cert =~ /AddTrust External CA Root/)
        {
            $cert_alias = "addtrustexternalca";
        }
        elsif ($cert =~ /AddTrust Qualified CA Root/)
        {
            $cert_alias = "addtrustqualifiedca";
        }
        elsif ($cert =~ /UTN-USERFirst-Hardware/)
        {
            $cert_alias = "utnuserfirsthardwareca";
        }
        elsif ($cert =~ /UTN-USERFirst-Client Authentication and Email/)
        {
            $cert_alias = "utnuserfirstclientauthemailca";
        }
        elsif ($cert =~ /UTN - DATACorp SGC/)
        {
            $cert_alias = "utndatacorpsgcca";
        }
        elsif ($cert =~ /UTN-USERFirst-Object/)
        {
            $cert_alias = "utnuserfirstobjectca";
        }
        elsif ($cert =~ /America Online Root Certification Authority 1/)
        {
            $cert_alias = "aolrootca1";
        }
        elsif ($cert =~ /DigiCert Assured ID Root CA/)
        {
            $cert_alias = "digicertassuredidrootca";
        }
        elsif ($cert =~ /DigiCert Global Root CA/)
        {
            $cert_alias = "digicertglobalrootca";
        }
        elsif ($cert =~ /DigiCert High Assurance EV Root CA/)
        {
            $cert_alias = "digicerthighassuranceevrootca";
        }
        elsif ($cert =~ /GlobalSign Root CA$/)
        {
            $cert_alias = "globalsignca";
        }
        elsif ($cert =~ /GlobalSign Root CA - R2/)
        {
            $cert_alias = "globalsignr2ca";
        }
        elsif ($cert =~ /Elektronik.*Kas.*2005/)
        {
            $cert_alias = "extra-elektronikkas2005";
        }
        elsif ($cert =~ /Elektronik/)
        {
            $cert_alias = "extra-elektronik2005";
        }
        # Mozilla does not provide these certificates:
        #   baltimorecodesigningca
        #   gtecybertrust5ca
        #   trustcenterclass2caii
        #   trustcenterclass4caii
        #   trustcenteruniversalcai
        else
        {
            # Generate an alias using the OU and CN attributes of the
            # Issuer field if both are present, otherwise use only the
            # CN attribute.  The Issuer field must have either the OU
            # or the CN attribute.
            $_ = $cert;
            if ($cert =~ /OU=/)
            {
                s/Issuer:.*?OU=//;
                # Remove other occurrences of OU=.
                s/OU=.*CN=//;
                # Remove CN= if there were not other occurrences of OU=.
                s/CN=//;
                s/\/emailAddress.*//;
                s/Certificate Authority/ca/g;
                s/Certification Authority/ca/g;
            }
            elsif ($cert =~ /CN=/)
            {
                s/Issuer:.*CN=//;
                s/\/emailAddress.*//;
                s/Certificate Authority/ca/g;
                s/Certification Authority/ca/g;
            }
            s/\W//g;
            tr/A-Z/a-z/;
            $cert_alias = "extra-$_";

        }
        while (-e "$cert_alias.pem")
        {
            $cert_alias = "$cert_alias" . "_";
        }
    }
    # When it attempts to parse:
    #
    # Class 3 Public Primary Certification Authority - G2, Version 3
    #
    # keytool says:
    #
    # #2: ObjectId: 1.3.6.1.5.5.7.1.1 Criticality=false
    # Unparseable AuthorityInfoAccess extension due to
    # java.io.IOException: Invalid encoding of URI
    #
    # If we do not exclude this file
    # openjdk/jdk/test/lib/security/cacerts/VerifyCACerts.java fails
    # on this cert, printing:
    #
    # Couldn't verify: java.security.SignatureException: Signature
    # does not match.
    #
    elsif ($cert =~
           /A6:0F:34:C8:62:6C:81:F6:8B:F7:7D:A9:F6:67:58:8A:90:3F:7D:36/)
    {
        $write_current_cert = 0;
        $pem_file_count--;
    }
    elsif ($cert eq "-----BEGIN CERTIFICATE-----\n")
    {
        if ($in_cert_block != 0)
        {
            die "$file is malformed.";
        }
        $in_cert_block = 1;
        if ($write_current_cert == 1)
        {
            $pem_file_count++;
            if (-e "$cert_alias.pem")
            {
                print "$cert_alias";
                die "already exists"
            }
            open(PEM, ">$cert_alias.pem");
            print PEM $cert;
        }
    }
    elsif ($cert eq "-----END CERTIFICATE-----\n")
    {
        $in_cert_block = 0;
        if ($write_current_cert == 1)
        {
            print PEM $cert;
            close(PEM);
        }
        $write_current_cert = 1
    }
    else
    {
        if ($in_cert_block == 1 && $write_current_cert == 1)
        {
            print PEM $cert;
        }
    }
}

# Check that the correct number of .pem files were produced.
@pem_files = <*.pem>;
if (@pem_files != $pem_file_count)
{
    print "$pem_file_count";
    die "Number of .pem files produced does not match".
        " number of certs read from $file.";
}

# Now store each cert in the 'cacerts' file using keytool.
$certs_written_count = 0;
foreach $pem_file (@pem_files)
{
    system "$ARGV[0] -noprompt -import".
        " -alias `basename $pem_file .pem`".
        " -keystore cacerts -storepass 'changeit' -file $pem_file";
    unlink($pem_file);
    $certs_written_count++;
}

# Check that the correct number of certs were added to the keystore.
if ($certs_written_count != $pem_file_count)
{
    die "Number of certs added to keystore does not match".
        " number of certs read from $file.";
}