public sealed override ManifestResourceInfo GetManifestResourceInfo(string resourceName)
{
if (resourceName == null)
{
throw new ArgumentNullException(nameof(resourceName));
}
if (resourceName.Equals(""))
{
throw new ArgumentException(nameof(resourceName));
}
InternalManifestResourceInfo internalManifestResourceInfo = GetInternalManifestResourceInfo(resourceName);
if (internalManifestResourceInfo.ResourceLocation == ResourceLocation.ContainedInAnotherAssembly)
{
// Must get resource info from other assembly, and OR in the contained in another assembly information
ManifestResourceInfo underlyingManifestResourceInfo = internalManifestResourceInfo.ReferencedAssembly.GetManifestResourceInfo(resourceName);
internalManifestResourceInfo.FileName = underlyingManifestResourceInfo.FileName;
internalManifestResourceInfo.ResourceLocation = underlyingManifestResourceInfo.ResourceLocation | ResourceLocation.ContainedInAnotherAssembly;
if (underlyingManifestResourceInfo.ReferencedAssembly != null)
{
internalManifestResourceInfo.ReferencedAssembly = underlyingManifestResourceInfo.ReferencedAssembly;
}
}
return(new ManifestResourceInfo(internalManifestResourceInfo.ReferencedAssembly, internalManifestResourceInfo.FileName, internalManifestResourceInfo.ResourceLocation));
}
public sealed override Stream GetManifestResourceStream(string name)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
if (name.Equals(""))
{
throw new ArgumentException(nameof(name));
}
InternalManifestResourceInfo internalManifestResourceInfo = GetInternalManifestResourceInfo(name);
if ((internalManifestResourceInfo.ResourceLocation & ResourceLocation.Embedded) != 0)
{
unsafe
{
return(new UnmanagedMemoryStream(internalManifestResourceInfo.PointerToResource, internalManifestResourceInfo.SizeOfResource));
}
}
else
{
if (internalManifestResourceInfo.ResourceLocation == ResourceLocation.ContainedInAnotherAssembly)
{
return(internalManifestResourceInfo.ReferencedAssembly.GetManifestResourceStream(name));
}
else
{
// Linked resource case.
// TODO Implement linked resources, when FileStream, and CodeBase are fully implemented
throw new NotImplementedException();
}
}
}
private unsafe InternalManifestResourceInfo GetInternalManifestResourceInfo(string resourceName)
{
InternalManifestResourceInfo result = new InternalManifestResourceInfo();
ManifestResourceHandleCollection manifestResources = MetadataReader.ManifestResources;
foreach (var resourceHandle in manifestResources)
{
ManifestResource resource = MetadataReader.GetManifestResource(resourceHandle);
if (MetadataReader.StringComparer.Equals(resource.Name, resourceName))
{
result.Found = true;
if (resource.Implementation.IsNil)
{
checked
{
// Embedded data resource
result.ResourceLocation = ResourceLocation.Embedded | ResourceLocation.ContainedInManifestFile;
PEReader pe = PEReader;
PEMemoryBlock resourceDirectory = pe.GetSectionData(pe.PEHeaders.CorHeader.ResourcesDirectory.RelativeVirtualAddress);
BlobReader reader = resourceDirectory.GetReader((int)resource.Offset, resourceDirectory.Length - (int)resource.Offset);
uint length = reader.ReadUInt32();
result.PointerToResource = reader.CurrentPointer;
// Length check the size of the resource to ensure it fits in the PE file section, note, this is only safe as its in a checked region
if (length + sizeof(Int32) > reader.Length)
{
throw new BadImageFormatException();
}
result.SizeOfResource = length;
}
}
else
{
if (resource.Implementation.Kind == HandleKind.AssemblyFile)
{
// Get file name
result.ResourceLocation = default(ResourceLocation);
AssemblyFile file = MetadataReader.GetAssemblyFile((AssemblyFileHandle)resource.Implementation);
if (file.ContainsMetadata)
{
result.ResourceLocation = ResourceLocation.Embedded;
throw new PlatformNotSupportedException(); // Support for multi-module assemblies is not implemented on this platform
}
result.FileName = MetadataReader.GetString(file.Name);
}
else if (resource.Implementation.Kind == HandleKind.AssemblyReference)
{
// Resolve assembly reference
result.ResourceLocation = ResourceLocation.ContainedInAnotherAssembly;
RuntimeAssemblyName destinationAssemblyName = ((AssemblyReferenceHandle)resource.Implementation).ToRuntimeAssemblyName(MetadataReader);
result.ReferencedAssembly = RuntimeAssembly.GetRuntimeAssemblyIfExists(destinationAssemblyName);
}
}
}
}
return(result);
}
