internal static Assembly?LoadGeneratedAssembly(Type type, string?defaultNamespace, out XmlSerializerImplementation?contract)
{
Assembly?serializer = null;
contract = null;
string?serializerName;
using (AssemblyLoadContext.EnterContextualReflection(type.Assembly))
{
// check to see if we loading explicit pre-generated assembly
object[] attrs = type.GetCustomAttributes(typeof(System.Xml.Serialization.XmlSerializerAssemblyAttribute), false);
if (attrs.Length == 0)
{
// Guess serializer name: if parent assembly signed use strong name
AssemblyName name = type.Assembly.GetName();
serializerName = Compiler.GetTempAssemblyName(name, defaultNamespace);
// use strong name
name.Name = serializerName;
name.CodeBase = null;
name.CultureInfo = CultureInfo.InvariantCulture;
try
{
serializer = Assembly.Load(name);
}
catch (Exception e)
{
if (e is OutOfMemoryException)
{
throw;
}
}
serializer ??= LoadAssemblyByPath(type, serializerName);
if (serializer == null)
{
if (XmlSerializer.Mode == SerializationMode.PreGenOnly)
{
throw new Exception(SR.Format(SR.FailLoadAssemblyUnderPregenMode, serializerName));
}
return(null);
}
if (!IsSerializerVersionMatch(serializer, type, defaultNamespace))
{
XmlSerializationEventSource.Log.XmlSerializerExpired(serializerName, type.FullName !);
return(null);
}
}
else
{
System.Xml.Serialization.XmlSerializerAssemblyAttribute assemblyAttribute = (System.Xml.Serialization.XmlSerializerAssemblyAttribute)attrs[0];
if (assemblyAttribute.AssemblyName != null && assemblyAttribute.CodeBase != null)
{
throw new InvalidOperationException(SR.Format(SR.XmlPregenInvalidXmlSerializerAssemblyAttribute, "AssemblyName", "CodeBase"));
}
// found XmlSerializerAssemblyAttribute attribute, it should have all needed information to load the pre-generated serializer
if (assemblyAttribute.AssemblyName != null)
{
serializerName = assemblyAttribute.AssemblyName;
serializer = Assembly.Load(serializerName); // LoadWithPartialName just does this in .Net Core; changing the obsolete call.
}
else if (assemblyAttribute.CodeBase != null && assemblyAttribute.CodeBase.Length > 0)
{
serializerName = assemblyAttribute.CodeBase;
serializer = Assembly.LoadFrom(serializerName);
}
else
{
serializerName = type.Assembly.FullName;
serializer = type.Assembly;
}
if (serializer == null)
{
throw new FileNotFoundException(null, serializerName);
}
}
Type contractType = GetTypeFromAssembly(serializer, "XmlSerializerContract");
contract = (XmlSerializerImplementation)Activator.CreateInstance(contractType) !;
if (contract.CanSerialize(type))
{
return(serializer);
}
}
return(null);
}
/// <devdoc>
/// <para>
/// Attempts to load pre-generated serialization assembly.
/// First check for the [XmlSerializerAssembly] attribute
/// </para>
/// </devdoc>
// SxS: This method does not take any resource name and does not expose any resources to the caller.
// It's OK to suppress the SxS warning.
internal static Assembly LoadGeneratedAssembly(Type type, string defaultNamespace, out XmlSerializerImplementation contract)
{
Assembly serializer = null;
contract = null;
string serializerName = null;
// check to see if we loading explicit pre-generated assembly
object[] attrs = type.GetCustomAttributes(typeof(System.Xml.Serialization.XmlSerializerAssemblyAttribute), false);
if (attrs.Length == 0)
{
// Guess serializer name: if parent assembly signed use strong name
AssemblyName name = type.Assembly.GetName();
serializerName = Compiler.GetTempAssemblyName(name, defaultNamespace);
// use strong name
name.Name = serializerName;
name.CodeBase = null;
name.CultureInfo = CultureInfo.InvariantCulture;
string serializerPath = null;
try
{
if (!string.IsNullOrEmpty(type.Assembly.Location))
{
serializerPath = Path.Combine(Path.GetDirectoryName(type.Assembly.Location), serializerName + ".dll");
}
if ((string.IsNullOrEmpty(serializerPath) || !File.Exists(serializerPath)) && !string.IsNullOrEmpty(Assembly.GetEntryAssembly().Location))
{
serializerPath = Path.Combine(Path.GetDirectoryName(Assembly.GetEntryAssembly().Location), serializerName + ".dll");
}
if (!string.IsNullOrEmpty(serializerPath))
{
serializer = Assembly.LoadFile(serializerPath);
}
}
catch (Exception e)
{
if (e is ThreadAbortException || e is StackOverflowException || e is OutOfMemoryException)
{
throw;
}
byte[] token = name.GetPublicKeyToken();
if (token != null && token.Length > 0)
{
// the parent assembly was signed, so do not try to LoadWithPartialName
return(null);
}
}
if (serializer == null)
{
if (XmlSerializer.Mode == SerializationMode.PreGenOnly)
{
throw new Exception(SR.Format(SR.FailLoadAssemblyUnderPregenMode, serializerName));
}
return(null);
}
if (!IsSerializerVersionMatch(serializer, type, defaultNamespace))
{
XmlSerializationEventSource.Log.XmlSerializerExpired(serializerName, type.FullName);
return(null);
}
}
else
{
System.Xml.Serialization.XmlSerializerAssemblyAttribute assemblyAttribute = (System.Xml.Serialization.XmlSerializerAssemblyAttribute)attrs[0];
if (assemblyAttribute.AssemblyName != null && assemblyAttribute.CodeBase != null)
{
throw new InvalidOperationException(SR.Format(SR.XmlPregenInvalidXmlSerializerAssemblyAttribute, "AssemblyName", "CodeBase"));
}
// found XmlSerializerAssemblyAttribute attribute, it should have all needed information to load the pre-generated serializer
if (assemblyAttribute.AssemblyName != null)
{
serializerName = assemblyAttribute.AssemblyName;
#pragma warning disable 618
serializer = Assembly.LoadWithPartialName(serializerName);
#pragma warning restore 618
}
else if (assemblyAttribute.CodeBase != null && assemblyAttribute.CodeBase.Length > 0)
{
serializerName = assemblyAttribute.CodeBase;
serializer = Assembly.LoadFrom(serializerName);
}
else
{
serializerName = type.Assembly.FullName;
serializer = type.Assembly;
}
if (serializer == null)
{
throw new FileNotFoundException(null, serializerName);
}
}
Type contractType = GetTypeFromAssembly(serializer, "XmlSerializerContract");
contract = (XmlSerializerImplementation)Activator.CreateInstance(contractType);
if (contract.CanSerialize(type))
{
return(serializer);
}
return(null);
}
/// <devdoc>
/// <para>
/// Attempts to load pre-generated serialization assembly.
/// First check for the [XmlSerializerAssembly] attribute
/// </para>
/// </devdoc>
// SxS: This method does not take any resource name and does not expose any resources to the caller.
// It's OK to suppress the SxS warning.
internal static Assembly LoadGeneratedAssembly(Type type, string defaultNamespace, out XmlSerializerImplementation contract)
{
Assembly serializer = null;
contract = null;
string serializerName = null;
// check to see if we loading explicit pre-generated assembly
object[] attrs = type.GetCustomAttributes(typeof(System.Xml.Serialization.XmlSerializerAssemblyAttribute), false);
if (attrs.Length == 0)
{
// Guess serializer name: if parent assembly signed use strong name
AssemblyName name = type.Assembly.GetName();
serializerName = Compiler.GetTempAssemblyName(name, defaultNamespace);
// use strong name
name.Name = serializerName;
name.CodeBase = null;
name.CultureInfo = CultureInfo.InvariantCulture;
try
{
serializer = Assembly.Load(name);
}
catch (Exception e)
{
if (e is OutOfMemoryException)
{
throw;
}
byte[] token = name.GetPublicKeyToken();
if (token != null && token.Length > 0)
{
// the parent assembly was signed, so do not try to LoadWithPartialName
return(null);
}
#pragma warning disable 618
serializer = Assembly.LoadWithPartialName(serializerName);
#pragma warning restore 618
}
if (serializer == null)
{
return(null);
}
}
else
{
System.Xml.Serialization.XmlSerializerAssemblyAttribute assemblyAttribute = (System.Xml.Serialization.XmlSerializerAssemblyAttribute)attrs[0];
if (assemblyAttribute.AssemblyName != null && assemblyAttribute.CodeBase != null)
{
throw new InvalidOperationException(SR.Format(SR.XmlPregenInvalidXmlSerializerAssemblyAttribute, "AssemblyName", "CodeBase"));
}
// found XmlSerializerAssemblyAttribute attribute, it should have all needed information to load the pre-generated serializer
if (assemblyAttribute.AssemblyName != null)
{
serializerName = assemblyAttribute.AssemblyName;
#pragma warning disable 618
serializer = Assembly.LoadWithPartialName(serializerName);
#pragma warning restore 618
}
else if (assemblyAttribute.CodeBase != null && assemblyAttribute.CodeBase.Length > 0)
{
serializerName = assemblyAttribute.CodeBase;
serializer = Assembly.LoadFrom(serializerName);
}
else
{
serializerName = type.Assembly.FullName;
serializer = type.Assembly;
}
if (serializer == null)
{
throw new FileNotFoundException(null, serializerName);
}
}
Type contractType = GetTypeFromAssembly(serializer, "XmlSerializerContract");
contract = (XmlSerializerImplementation)Activator.CreateInstance(contractType);
if (contract.CanSerialize(type))
{
return(serializer);
}
return(null);
}
