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//
// SerializedFromResXHandler.cs : Handles a resource that was stored in a
// resx file by means of serialization.
//
// Author:
// Gary Barnett (gary.barnett.mono@gmail.com)
//
// Copyright (C) Gary Barnett (2012)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
using System;
using System.Reflection;
using System.ComponentModel.Design;
using System.ComponentModel;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
using System.Text;
using System.Runtime.Serialization.Formatters.Soap;
namespace System.Resources {
internal class SerializedFromResXHandler : ResXDataNodeHandler, IWritableHandler {
string dataString;
string mime_type;
CustomBinder binder; // so type set after first call
public SerializedFromResXHandler (string data, string _mime_type)
{
dataString = data;
mime_type = _mime_type;
}
#region implemented abstract members of System.Resources.ResXDataNodeHandler
public override object GetValue (ITypeResolutionService typeResolver)
{
return DeserializeObject (typeResolver);
}
public override object GetValue (AssemblyName [] assemblyNames)
{
return DeserializeObject (new AssemblyNamesTypeResolutionService (assemblyNames));
}
public override string GetValueTypeName (ITypeResolutionService typeResolver)
{
return InternalGetValueType (typeResolver);
}
public override string GetValueTypeName (AssemblyName [] assemblyNames)
{
return InternalGetValueType (null);
}
#endregion
#region IWritableHandler implementation
public string DataString {
get {
return dataString;
}
}
#endregion
string InternalGetValueType (ITypeResolutionService typeResolver)
{
object retrievedObject;
try {
retrievedObject = DeserializeObject (typeResolver);
} catch {
return typeof (object).AssemblyQualifiedName;
}
if (retrievedObject == null)
return null;
else
return retrievedObject.GetType ().AssemblyQualifiedName;
}
object DeserializeObject (ITypeResolutionService typeResolver)
{
try {
if (mime_type == ResXResourceWriter.SoapSerializedObjectMimeType) {
//FIXME: theres a test in the suite to check that a type converter converts from invariant string
//do i need to take the string culture into consideration here?
SoapFormatter soapF = new SoapFormatter ();
if (binder == null)
binder = new CustomBinder (typeResolver);
soapF.Binder = binder;
byte [] data = Convert.FromBase64String (dataString);
using (MemoryStream s = new MemoryStream (data)) {
return soapF.Deserialize (s);
}
} else if (mime_type == ResXResourceWriter.BinSerializedObjectMimeType) {
BinaryFormatter binF = new BinaryFormatter ();
if (binder == null)
binder = new CustomBinder (typeResolver);
binF.Binder = binder;
byte [] data = Convert.FromBase64String (dataString);
using (MemoryStream s = new MemoryStream (data)) {
return binF.Deserialize (s);
}
} else // invalid mime_type
return null;
} catch (SerializationException ex) {
if (ex.Message.StartsWith ("Couldn't find assembly"))
throw new ArgumentException (ex.Message);
else
throw ex;
}
}
sealed class CustomBinder : SerializationBinder
{
ITypeResolutionService typeResolver;
public CustomBinder (ITypeResolutionService _typeResolver)
{
// nulls ok
typeResolver = _typeResolver;
}
public override Type BindToType(string assemblyName, string typeName)
{
Type typeToUse = null;
string typeString = String.Format("{0}, {1}", typeName, assemblyName);
if (typeResolver != null)
typeToUse = typeResolver.GetType (typeString);
if (typeToUse == null)
typeToUse = Type.GetType(typeString);
return typeToUse;
}
}
}
}
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