class/corlib/System.Runtime.Hosting/ApplicationActivator.cs

   1 //
   2 // System.Runtime.Hosting.ApplicationActivator class
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.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
  29 using System.Runtime.InteropServices;
  30 using System.Runtime.Remoting;
  31 using System.Security;
  32 using System.Security.Policy;
  33
  34 namespace System.Runtime.Hosting {
  35
  36         [ComVisible (true)]
  37         [MonoTODO ("missing manifest support")]
  38         public class ApplicationActivator {
  39
  40                 public ApplicationActivator ()
  41                 {
  42                 }
  43
  44                 public virtual ObjectHandle CreateInstance (ActivationContext activationContext)
  45                 {
  46                         return CreateInstance (activationContext, null);
  47                 }
  48
  49                 public virtual ObjectHandle CreateInstance (ActivationContext activationContext, string[] activationCustomData)
  50                 {
  51                         if (activationContext == null)
  52                                 throw new ArgumentNullException ("activationContext");
  53
  54                         // TODO : compare activationContext with the one from this domain
  55                         // and use it if it match
  56
  57                         // TODO : we must pass the activationCustomData in the AppDomainSetup
  58                         // even if the activationCustomData don't match ???
  59
  60                         AppDomainSetup setup = new AppDomainSetup (activationContext);
  61                         return CreateInstanceHelper (setup);
  62                 }
  63
  64                 protected static ObjectHandle CreateInstanceHelper (AppDomainSetup adSetup)
  65                 {
  66                         if (adSetup == null)
  67                                 throw new ArgumentNullException ("adSetup");
  68
  69                         if (adSetup.ActivationArguments == null) {
  70                                 string msg = Locale.GetText ("{0} is missing it's {1} property");
  71                                 throw new ArgumentException (String.Format (msg, "AppDomainSetup", "ActivationArguments"), "adSetup");
  72                         }
  73
  74                         HostSecurityManager hsm = null;
  75                         if (AppDomain.CurrentDomain.DomainManager != null)
  76                                 hsm = AppDomain.CurrentDomain.DomainManager.HostSecurityManager;
  77                         else
  78                                 hsm = new HostSecurityManager (); // default
  79
  80                         Evidence applicationEvidence = new Evidence ();
  81                         applicationEvidence.AddHost (adSetup.ActivationArguments);
  82                         TrustManagerContext context = new TrustManagerContext ();
  83                         ApplicationTrust trust = hsm.DetermineApplicationTrust (applicationEvidence, null, context);
  84                         if (!trust.IsApplicationTrustedToRun) {
  85                                 string msg = Locale.GetText ("Current policy doesn't allow execution of addin.");
  86                                 throw new PolicyException (msg);
  87                         }
  88
  89                         // FIXME: we're missing the information from the manifest
  90                         AppDomain ad = AppDomain.CreateDomain ("friendlyName", null, adSetup);
  91                         return ad.CreateInstance ("assemblyName", "typeName", null);
  92                 }
  93         }
  94 }
  95