//
// System.Runtime.Serialization.FormatterServices
//
// Authors:
// Gonzalo Paniagua Javier (gonzalo@ximian.com)
//
// (C) 2002 Ximian, Inc (http://www.ximian.com)
//
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// 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.Collections;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.Serialization.Formatters;
using System.Globalization;
namespace System.Runtime.Serialization{
[System.Runtime.InteropServices.ComVisibleAttribute (true)]
public sealed class FormatterServices
{
private const BindingFlags fieldFlags = BindingFlags.Public |
BindingFlags.Instance |
BindingFlags.NonPublic |
BindingFlags.DeclaredOnly;
private FormatterServices ()
{
}
public static object [] GetObjectData (object obj, MemberInfo [] members)
{
if (obj == null)
throw new ArgumentNullException ("obj");
if (members == null)
throw new ArgumentNullException ("members");
int n = members.Length;
object [] result = new object [n];
for (int i = 0; i < n; i++) {
MemberInfo member = members [i];
if (member == null)
throw new ArgumentNullException (String.Format ("members[{0}]", i));
if (member.MemberType != MemberTypes.Field)
throw new SerializationException (
String.Format ("members [{0}] is not a field.", i));
FieldInfo fi = member as FieldInfo; // members must be fields
result [i] = fi.GetValue (obj);
}
return result;
}
public static MemberInfo [] GetSerializableMembers (Type type)
{
StreamingContext st = new StreamingContext (StreamingContextStates.All);
return GetSerializableMembers (type, st);
}
public static MemberInfo [] GetSerializableMembers (Type type, StreamingContext context)
{
if (type == null)
throw new ArgumentNullException ("type");
//FIXME: context?
ArrayList fields = new ArrayList ();
Type t = type;
while (t != null) {
if (!t.IsSerializable) {
string msg = String.Format ("Type {0} in assembly {1} is not " +
"marked as serializable.",
t, t.Assembly.FullName);
throw new SerializationException (msg);
}
GetFields (type, t, fields);
t = t.BaseType;
}
MemberInfo [] result = new MemberInfo [fields.Count];
fields.CopyTo (result);
return result;
}
private static void GetFields (Type reflectedType, Type type, ArrayList fields)
{
FieldInfo [] fs = type.GetFields (fieldFlags);
foreach (FieldInfo field in fs)
if (!(field.IsNotSerialized)) {
MonoField mf = field as MonoField;
if (mf != null && reflectedType != type && !mf.IsPublic) {
string fname = type.Name + "+" + mf.Name;
fields.Add (mf.Clone (fname));
}
else
fields.Add (field);
}
}
public static Type GetTypeFromAssembly (Assembly assem, string name)
{
if (assem == null)
throw new ArgumentNullException ("assem");
if (name == null)
throw new ArgumentNullException ("name");
return assem.GetType (name);
}
public static object GetUninitializedObject (Type type)
{
if (type == null)
throw new ArgumentNullException ("type");
if (type == typeof (string))
throw new ArgumentException ("Uninitialized Strings cannot be created.");
return System.Runtime.Remoting.Activation.ActivationServices.AllocateUninitializedClassInstance (type);
}
public static object PopulateObjectMembers (object obj, MemberInfo [] members, object [] data)
{
if (obj == null)
throw new ArgumentNullException ("obj");
if (members == null)
throw new ArgumentNullException ("members");
if (data == null)
throw new ArgumentNullException ("data");
int length = members.Length;
if (length != data.Length)
throw new ArgumentException ("different length in members and data");
for (int i = 0; i < length; i++) {
MemberInfo member = members [i];
if (member == null)
throw new ArgumentNullException (String.Format ("members[{0}]", i));
if (member.MemberType != MemberTypes.Field)
throw new SerializationException (
String.Format ("members [{0}] is not a field.", i));
FieldInfo fi = member as FieldInfo; // members must be fields
fi.SetValue (obj, data [i]);
}
return obj;
}
#if NET_1_1
public static void CheckTypeSecurity (Type t, TypeFilterLevel securityLevel)
{
if (securityLevel == TypeFilterLevel.Full) return;
CheckNotAssignable (typeof(System.DelegateSerializationHolder), t);
CheckNotAssignable (typeof(System.Runtime.Remoting.Lifetime.ISponsor), t);
CheckNotAssignable (typeof(System.Runtime.Remoting.IEnvoyInfo), t);
CheckNotAssignable (typeof(System.Runtime.Remoting.ObjRef), t);
}
static void CheckNotAssignable (Type basetype, Type type)
{
if (basetype.IsAssignableFrom (type)) {
string msg = "Type " + basetype + " and the types derived from it";
msg += " (such as " + type + ") are not permitted to be deserialized at this security level";
throw new System.Security.SecurityException (msg);
}
}
public static object GetSafeUninitializedObject (Type type)
{
// FIXME: MS.NET uses code access permissions to check if the caller is
// allowed to create an instance of this type. We can't support this
// because it is not implemented in mono.
// In concrete, the it will request a SecurityPermission of
// type "Infrastructure".
return GetUninitializedObject (type);
}
#endif
}
}
|