mcs/class/System/Mono.Btls/X509ChainImplBtls.cs

   1 //
   2 // X509ChainImplBtls.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.Text;
  29 using System.Security;
  30 using System.Security.Cryptography;
  31 using System.Security.Cryptography.X509Certificates;
  32 using MX = Mono.Security.X509;
  33
  34 namespace Mono.Btls
  35 {
  36         class X509ChainImplBtls : X509ChainImpl
  37         {
  38                 MonoBtlsX509StoreCtx storeCtx;
  39                 MonoBtlsX509Chain chain;
  40                 MonoBtlsX509Chain untrustedChain;
  41                 X509ChainElementCollection elements;
  42                 X509Certificate2Collection untrusted;
  43                 X509Certificate2[] certificates;
  44                 X509ChainPolicy policy;
  45
  46                 internal X509ChainImplBtls (MonoBtlsX509Chain chain)
  47                 {
  48                         this.chain = chain.Copy ();
  49                         policy = new X509ChainPolicy ();
  50                 }
  51
  52                 internal X509ChainImplBtls (MonoBtlsX509StoreCtx storeCtx)
  53                 {
  54                         this.storeCtx = storeCtx.Copy ();
  55                         this.chain = storeCtx.GetChain ();
  56
  57                         policy = new X509ChainPolicy ();
  58                         using (var test = (IDisposable)null) {
  59                                 ;
  60                         }
  61
  62                         untrustedChain = storeCtx.GetUntrusted ();
  63
  64                         if (untrustedChain != null) {
  65                                 untrusted = new X509Certificate2Collection ();
  66                                 policy.ExtraStore = untrusted;
  67                                 for (int i = 0; i < untrustedChain.Count; i++) {
  68                                         using (var cert = untrustedChain.GetCertificate (i))
  69                                         using (var impl = new X509CertificateImplBtls (cert))
  70                                                 untrusted.Add (new X509Certificate2 (impl));
  71                                 }
  72                         }
  73                         storeCtx.Test ();
  74                 }
  75
  76                 internal X509ChainImplBtls ()
  77                 {
  78                         chain = new MonoBtlsX509Chain ();
  79                         elements = new X509ChainElementCollection ();
  80                         policy = new X509ChainPolicy ();
  81                 }
  82
  83                 public override bool IsValid {
  84                         get { return chain != null && chain.IsValid; }
  85                 }
  86
  87                 public override IntPtr Handle {
  88                         get { return chain.Handle.DangerousGetHandle (); }
  89                 }
  90
  91                 internal MonoBtlsX509Chain Chain {
  92                         get {
  93                                 ThrowIfContextInvalid ();
  94                                 return chain;
  95                         }
  96                 }
  97
  98                 internal MonoBtlsX509StoreCtx StoreCtx {
  99                         get {
 100                                 ThrowIfContextInvalid ();
 101                                 return storeCtx;
 102                         }
 103                 }
 104
 105                 public override X509ChainElementCollection ChainElements {
 106                         get {
 107                                 ThrowIfContextInvalid ();
 108                                 if (elements != null)
 109                                         return elements;
 110
 111                                 elements = new X509ChainElementCollection ();
 112                                 certificates = new X509Certificate2 [chain.Count];
 113
 114                                 for (int i = 0; i < certificates.Length; i++) {
 115                                         var cert = chain.GetCertificate (i);
 116                                         var impl = new X509CertificateImplBtls (cert);
 117                                         certificates [i] = new X509Certificate2 (impl);
 118                                         elements.Add (certificates [i]);
 119                                 }
 120
 121                                 return elements;
 122                         }
 123                 }
 124
 125                 public override X509ChainPolicy ChainPolicy {
 126                         get { return policy; }
 127                         set { policy = value; }
 128                 }
 129
 130                 public override X509ChainStatus[] ChainStatus {
 131                         get { throw new NotImplementedException (); }
 132                 }
 133
 134                 public override bool Build (X509Certificate2 certificate)
 135                 {
 136                         return false;
 137                 }
 138
 139                 public override void Reset ()
 140                 {
 141                         if (certificates != null) {
 142                                 foreach (var certificate in certificates)
 143                                         certificate.Dispose ();
 144                                 certificates = null;
 145                         }
 146                         if (elements != null) {
 147                                 elements.Clear ();
 148                                 elements = null;
 149                         }
 150                 }
 151
 152                 protected override void Dispose (bool disposing)
 153                 {
 154                         if (disposing) {
 155                                 if (chain != null) {
 156                                         chain.Dispose ();
 157                                         chain = null;
 158                                 }
 159                                 if (storeCtx != null) {
 160                                         storeCtx.Dispose ();
 161                                         storeCtx = null;
 162                                 }
 163                                 if (untrustedChain != null) {
 164                                         untrustedChain.Dispose ();
 165                                         untrustedChain = null;
 166                                 }
 167                                 if (untrusted != null) {
 168                                         foreach (var cert in untrusted)
 169                                                 cert.Dispose ();
 170                                 }
 171                         }
 172                         base.Dispose (disposing);
 173                 }
 174         }
 175 }
 176 #endif