mcs/class/System/System/AndroidPlatform.cs

   1 //
   2 // System.AndroidPlatform.cs
   3 //
   4 // Author:
   5 //   Jonathan Pryor (jonp@xamarin.com)
   6 //
   7 // Copyright (C) 2012 Xamarin Inc (http://xamarin.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28 #if MONODROID
  29 using System;
  30 using System.Collections.Generic;
  31 using System.Net;
  32 using System.Net.Security;
  33 using System.Security.Cryptography.X509Certificates;
  34 #if SECURITY_DEP
  35 using MSX = Mono.Security.X509;
  36 using Mono.Btls;
  37 #endif
  38
  39 namespace System {
  40
  41         internal static class AndroidPlatform {
  42                 delegate int GetInterfaceAddressesDelegate (out IntPtr ifap);
  43                 delegate void FreeInterfaceAddressesDelegate (IntPtr ifap);
  44
  45 #if SECURITY_DEP
  46                 static readonly Converter<List <byte[]>, bool> trustEvaluateSsl;
  47                 static readonly Func<long, bool, byte[]> certStoreLookup;
  48 #endif  // SECURITY_DEP
  49                 static readonly Func<IWebProxy> getDefaultProxy;
  50                 static readonly GetInterfaceAddressesDelegate getInterfaceAddresses;
  51                 static readonly FreeInterfaceAddressesDelegate freeInterfaceAddresses;
  52
  53                 static AndroidPlatform ()
  54                 {
  55                         var t = Type.GetType ("Android.Runtime.AndroidEnvironment, Mono.Android", throwOnError:true);
  56 #if SECURITY_DEP
  57                         trustEvaluateSsl = (Converter<List<byte[]>, bool>)
  58                                 Delegate.CreateDelegate (typeof (Converter<List<byte[]>, bool>),
  59                                                         t,
  60                                                         "TrustEvaluateSsl",
  61                                                         ignoreCase:false,
  62                                                         throwOnBindFailure:true);
  63                         certStoreLookup = (Func<long, bool, byte[]>)
  64                                 Delegate.CreateDelegate (typeof (Func<long, bool, byte[]>),
  65                                                         t,
  66                                                         "CertStoreLookup",
  67                                                         ignoreCase:false,
  68                                                         throwOnBindFailure:true);
  69 #endif  // SECURITY_DEP
  70                         getDefaultProxy = (Func<IWebProxy>)Delegate.CreateDelegate (
  71                                 typeof (Func<IWebProxy>), t, "GetDefaultProxy",
  72                                 ignoreCase:false,
  73                                 throwOnBindFailure:true);
  74
  75                         getInterfaceAddresses = (GetInterfaceAddressesDelegate)Delegate.CreateDelegate (
  76                                 typeof (GetInterfaceAddressesDelegate), t, "GetInterfaceAddresses",
  77                                 ignoreCase: false,
  78                                 throwOnBindFailure: false);
  79
  80                         freeInterfaceAddresses = (FreeInterfaceAddressesDelegate)Delegate.CreateDelegate (
  81                                 typeof (FreeInterfaceAddressesDelegate), t, "FreeInterfaceAddresses",
  82                                 ignoreCase: false,
  83                                 throwOnBindFailure: false);
  84                 }
  85
  86 #if SECURITY_DEP
  87                 internal static bool TrustEvaluateSsl (X509CertificateCollection collection)
  88                 {
  89                         var certsRawData = new List <byte[]> (collection.Count);
  90                         foreach (var cert in collection)
  91                                 certsRawData.Add (cert.GetRawCertData ());
  92                         return trustEvaluateSsl (certsRawData);
  93                 }
  94
  95                 internal static MonoBtlsX509 CertStoreLookup (MonoBtlsX509Name name)
  96                 {
  97                         var hash = name.GetHash ();
  98                         var hashOld = name.GetHashOld ();
  99                         var result = certStoreLookup (hash, false);
 100                         if (result == null)
 101                                 result = certStoreLookup (hashOld, false);
 102                         if (result == null)
 103                                 result = certStoreLookup (hash, true);
 104                         if (result == null)
 105                                 result = certStoreLookup (hashOld, true);
 106
 107                         if (result == null)
 108                                 return null;
 109
 110                         return MonoBtlsX509.LoadFromData (result, MonoBtlsX509Format.DER);
 111                 }
 112 #endif  // SECURITY_DEP
 113
 114                 internal static IWebProxy GetDefaultProxy ()
 115                 {
 116                         return getDefaultProxy ();
 117                 }
 118
 119                 internal static int GetInterfaceAddresses (out IntPtr ifap)
 120                 {
 121                         ifap = IntPtr.Zero;
 122                         if (getInterfaceAddresses == null)
 123                                 return -1;
 124
 125                         return getInterfaceAddresses (out ifap);
 126                 }
 127
 128                 internal static void FreeInterfaceAddresses (IntPtr ifap)
 129                 {
 130                         if (freeInterfaceAddresses == null)
 131                                 return;
 132
 133                         freeInterfaceAddresses (ifap);
 134                 }
 135         }
 136 }
 137 #endif  // MONODROID