File Coverage

blib/lib/Crypt/OpenSSL/X509.pm

Criterion	Covered	Total	%
statement	57	61	93.4
branch	9	16	56.2
condition			n/a
subroutine	13	14	92.8
pod	3	3	100.0
total	82	94	87.2

package Crypt::OpenSSL::X509;

use warnings;
use strict;

use Exporter;
use base qw(Exporter);

use Convert::ASN1;

use version; our $VERSION = version->declare('2.1.2');

our @EXPORT_OK = qw(
  FORMAT_UNDEF FORMAT_ASN1 FORMAT_TEXT FORMAT_PEM
  FORMAT_PKCS12 FORMAT_SMIME FORMAT_ENGINE FORMAT_IISSGC OPENSSL_VERSION_NUMBER
);

sub Crypt::OpenSSL::X509::has_extension_oid {
  my $x509 = shift;
  my $oid  = shift;

  return ${$x509->extensions_by_oid}{$oid} ? 1 : 0;
}

sub Crypt::OpenSSL::X509::Extension::is_critical {
  my $ext = shift;
  my $crit = $ext->critical();

  return $crit ? 1 : 0;
}

# return a hash for the values of keyUsage or nsCertType
sub Crypt::OpenSSL::X509::Extension::hash_bit_string {
  my $ext  = shift;

  my @bits = split(//, $ext->bit_string);
  my $len  = @bits;

  my %bit_str_hash = ();

  if ($len == 9) { # bits for keyUsage

    %bit_str_hash = (
      'Digital Signature' => $bits[0],
      'Non Repudiation'   => $bits[1],
      'Key Encipherment'  => $bits[2],
      'Data Encipherment' => $bits[3],
      'Key Agreement'     => $bits[4],
      'Certificate Sign'  => $bits[5],
      'CRL Sign'          => $bits[6],
      'Encipher Only'     => $bits[7],
      'Decipher Only'     => $bits[8],);

  } elsif ($len == 8) {    #bits for nsCertType

    %bit_str_hash = (
      'SSL Client'        => $bits[0],
      'SSL Server'        => $bits[1],
      'S/MIME'            => $bits[2],
      'Object Signing'    => $bits[3],
      'Unused'            => $bits[4],
      'SSL CA'            => $bits[5],
      'S/MIME CA'         => $bits[6],
      'Object Signing CA' => $bits[7],);
  }

  return %bit_str_hash;
}

sub Crypt::OpenSSL::X509::Extension::extKeyUsage {
  my $ext = shift;

  my @vals = split(/ /, $ext->extendedKeyUsage);

  return @vals;
}

sub Crypt::OpenSSL::X509::is_selfsigned {
  my $x509 = shift;

  return $x509->subject eq $x509->issuer;
}

sub Crypt::OpenSSL::X509::subjectaltname {
  my $x509 = shift;

  my $SUBJECT_ALT_NAME_OID = '2.5.29.17';
  my $ext;
  eval {
    # extensions_by_oid croaks of no extensions found
    # we don't care we will return an empty array
    $ext = $x509->extensions_by_oid();
  };

  # Determine whether the SubjectAltName exist
  if (! defined ${$ext}{$SUBJECT_ALT_NAME_OID}) {
    # Simply return a reference to an empty array if it does not exist
    my @tmp = ();
    return \@tmp;
  }

  my $pdu = ${$ext}{$SUBJECT_ALT_NAME_OID}->value();

  # remove leading '#' from the value returned
  $pdu =~ s/^#//g;

  my $bin_data = join '', pack 'H*', $pdu;
  my $asn = Convert::ASN1->new();

  my $ok = $asn->prepare(q<
    AnotherName ::= SEQUENCE {
      type    OBJECT IDENTIFIER,
      value      [0] EXPLICIT ANY } --DEFINED BY type-id }

    EDIPartyName ::= SEQUENCE {
      nameAssigner            [0]     DirectoryString OPTIONAL,
      partyName               [1]     DirectoryString }

   --  Directory string type --

    DirectoryString ::= CHOICE {
      teletexString		TeletexString,  --(SIZE (1..MAX)),
      printableString		PrintableString,  --(SIZE (1..MAX)),
      bmpString		BMPString,  --(SIZE (1..MAX)),
      universalString		UniversalString,  --(SIZE (1..MAX)),
      utf8String		UTF8String,  --(SIZE (1..MAX)),
      ia5String		IA5String  --added for EmailAddress
	}

    AttributeType ::= OBJECT IDENTIFIER

    AttributeValue ::= DirectoryString  --ANY

    AttributeTypeAndValue ::= SEQUENCE {
      type			AttributeType,
      value			AttributeValue
	}

    -- naming data types --

    Name ::= CHOICE { -- only one possibility for now
      rdnSequence		RDNSequence
	}

    RDNSequence ::= SEQUENCE OF RelativeDistinguishedName

    DistinguishedName ::= RDNSequence

    RelativeDistinguishedName ::=
	SET OF AttributeTypeAndValue  --SET SIZE (1 .. MAX) OF

    SubjectAltName ::= GeneralNames

    GeneralNames ::= SEQUENCE OF GeneralName

    GeneralName ::= CHOICE {
      rfc822Name                      [1]     IA5String,
      dNSName                         [2]     IA5String,
      x400Address                     [3]     ANY, --ORAddress,
      directoryName                   [4]     Name,
      ediPartyName                    [5]     EDIPartyName,
      uniformResourceIdentifier       [6]     IA5String,
      iPAddress                       [7]     OCTET STRING,
      registeredID                    [8]     OBJECT IDENTIFIER
    }

  >);
  die '*** Could not prepare definition: '.$asn->error()
      if !$ok;

  # This is an important bit - if you don't do the find the decode
  # will randomly fail/succeed.  This is required to work
  my $asn_node = $asn->find('SubjectAltName')
      or die $asn->error;

  my $san = $asn_node->decode($bin_data)
      or die 'Unable to decode SubjectAltName: '.$asn_node->error;

  return $san;
}

use XSLoader;
XSLoader::load 'Crypt::OpenSSL::X509', $VERSION;

END {
  __PACKAGE__->__X509_cleanup;
}

1;

__END__