mcs/class/System/Mono.Btls/MonoBtlsX509LookupMonoCollection.cs

   1 //
   2 // MonoBtlsX509LookupMonoCollection.cs
   3 //
   4 // Author:
   5 //       Martin Baulig <martin.baulig@xamarin.com>
   6 //
   7 // Copyright (c) 2016 Xamarin Inc. (http://www.xamarin.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining a copy
  10 // of this software and associated documentation files (the "Software"), to deal
  11 // in the Software without restriction, including without limitation the rights
  12 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  13 // copies of the Software, and to permit persons to whom the Software is
  14 // furnished to do so, subject to the following conditions:
  15 //
  16 // The above copyright notice and this permission notice shall be included in
  17 // all copies or substantial portions of the Software.
  18 //
  19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  22 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  23 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  24 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  25 // THE SOFTWARE.
  26 #if SECURITY_DEP
  27 using System;
  28 using System.IO;
  29 using System.Runtime.InteropServices;
  30 using System.Runtime.CompilerServices;
  31 using System.Security.Cryptography.X509Certificates;
  32
  33 #if MONOTOUCH
  34 using MonoTouch;
  35 #endif
  36
  37 namespace Mono.Btls
  38 {
  39         internal class MonoBtlsX509LookupMonoCollection : MonoBtlsX509LookupMono
  40         {
  41                 long[] hashes;
  42                 MonoBtlsX509[] certificates;
  43                 X509CertificateCollection collection;
  44                 MonoBtlsX509TrustKind trust;
  45
  46                 internal MonoBtlsX509LookupMonoCollection (X509CertificateCollection collection, MonoBtlsX509TrustKind trust)
  47                 {
  48                         this.collection = collection;
  49                         this.trust = trust;
  50                 }
  51
  52                 void Initialize ()
  53                 {
  54                         if (certificates != null)
  55                                 return;
  56
  57                         hashes = new long [collection.Count];
  58                         certificates = new MonoBtlsX509 [collection.Count];
  59                         for (int i = 0; i < collection.Count; i++) {
  60                                 // Create new 'X509 *' instance since we need to modify it to add the
  61                                 // trust settings.
  62                                 var data = collection [i].GetRawCertData ();
  63                                 certificates [i] = MonoBtlsX509.LoadFromData (data, MonoBtlsX509Format.DER);
  64                                 certificates [i].AddExplicitTrust (trust);
  65                                 hashes [i] = certificates [i].GetSubjectNameHash ();
  66                         }
  67                 }
  68
  69                 protected override MonoBtlsX509 OnGetBySubject (MonoBtlsX509Name name)
  70                 {
  71                         Console.WriteLine ("COLLECTION LOOKUP: {0:x} - {1}", name.GetHash (), name.GetString ());
  72                         Initialize ();
  73
  74                         var hash = name.GetHash ();
  75                         for (int i = 0; i < certificates.Length; i++) {
  76                                 if (hashes [i] == hash)
  77                                         return certificates [i];
  78                         }
  79
  80                         return null;
  81                 }
  82
  83                 protected override void Close ()
  84                 {
  85                         try {
  86                                 if (certificates != null) {
  87                                         for (int i = 0; i < certificates.Length; i++) {
  88                                                 if (certificates [i] != null) {
  89                                                         certificates [i].Dispose ();
  90                                                         certificates [i] = null;
  91                                                 }
  92                                         }
  93                                         certificates = null;
  94                                         hashes = null;
  95                                 }
  96                         } finally {
  97                                 base.Close ();
  98                         }
  99                 }
 100         }
 101 }
 102 #endif