mcs/class/Mono.Security/Mono.Security.X509.Extensions/SubjectAltNameExtension.cs

   1 //
   2 // SubjectAltNameExtension.cs: Handles X.509 SubjectAltName extensions.
   3 //
   4 // Author:
   5 //      Sebastien Pouliot <sebastien@ximian.com>
   6 //
   7 // (C) 2003 Motus Technologies Inc. (http://www.motus.com)
   8 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System;
  31 using System.Net;
  32 using System.Collections;
  33 using System.Text;
  34
  35 using Mono.Security;
  36 using Mono.Security.X509;
  37
  38 namespace Mono.Security.X509.Extensions {
  39
  40         /*
  41          * id-ce-subjectAltName OBJECT IDENTIFIER ::=  { id-ce 17 }
  42          *
  43          * SubjectAltName ::= GeneralNames
  44          *
  45          * GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName
  46          *
  47          * GeneralName ::= CHOICE {
  48          *    otherName                       [0]     OtherName,
  49          *    rfc822Name                      [1]     IA5String,
  50          *    dNSName                         [2]     IA5String,
  51          *    x400Address                     [3]     ORAddress,
  52          *    directoryName                   [4]     Name,
  53          *    ediPartyName                    [5]     EDIPartyName,
  54          *    uniformResourceIdentifier       [6]     IA5String,
  55          *    iPAddress                       [7]     OCTET STRING,
  56          *    registeredID                    [8]     OBJECT IDENTIFIER
  57          * }
  58          *
  59          * OtherName ::= SEQUENCE {
  60          *    type-id    OBJECT IDENTIFIER,
  61          *    value      [0] EXPLICIT ANY DEFINED BY type-id
  62          * }
  63          *
  64          * EDIPartyName ::= SEQUENCE {
  65          *    nameAssigner            [0]     DirectoryString OPTIONAL,
  66          *    partyName               [1]     DirectoryString
  67          * }
  68          */
  69
  70         // TODO: Directories not supported
  71 #if INSIDE_SYSTEM
  72         internal
  73 #else
  74         public
  75 #endif
  76         class SubjectAltNameExtension : X509Extension {
  77
  78                 private GeneralNames _names;
  79
  80                 public SubjectAltNameExtension ()
  81                 {
  82                         extnOid = "2.5.29.17";
  83                         _names = new GeneralNames ();
  84                 }
  85
  86                 public SubjectAltNameExtension (ASN1 asn1)
  87                         : base (asn1)
  88                 {
  89                 }
  90
  91                 public SubjectAltNameExtension (X509Extension extension)
  92                         : base (extension)
  93                 {
  94                 }
  95
  96                 public SubjectAltNameExtension (string[] rfc822, string[] dnsNames,
  97                                 string[] ipAddresses, string[] uris)
  98                 {
  99                         _names = new GeneralNames(rfc822, dnsNames, ipAddresses, uris);
 100                         // 0x04 for string decoding and then the General Names!
 101                         extnValue = new ASN1 (0x04, _names.GetBytes());
 102                         extnOid = "2.5.29.17";
 103                 //      extnCritical = true;
 104                 }
 105
 106                 protected override void Decode ()
 107                 {
 108                         ASN1 sequence = new ASN1 (extnValue.Value);
 109                         if (sequence.Tag != 0x30)
 110                                 throw new ArgumentException ("Invalid SubjectAltName extension");
 111                         _names = new GeneralNames (sequence);
 112                 }
 113
 114                 public override string Name {
 115                         get { return "Subject Alternative Name"; }
 116                 }
 117
 118                 public string[] RFC822 {
 119                         get { return _names.RFC822; }
 120                 }
 121
 122                 public string[] DNSNames {
 123                         get { return _names.DNSNames; }
 124                 }
 125
 126                 public string[] IPAddresses {
 127                         get { return _names.IPAddresses; }
 128                 }
 129
 130                 public string[] UniformResourceIdentifiers {
 131                         get { return _names.UniformResourceIdentifiers; }
 132                 }
 133
 134                 public override string ToString ()
 135                 {
 136                         return _names.ToString ();
 137                 }
 138         }
 139 }