// TODO: Revert to using Mono.Cecil when https://github.com/jbevain/cecil/issues/306 is fixed.
public IEnumerable <PackageVerifierIssue> Validate(PackageAnalysisContext context)
{
var issues = new List <PackageVerifierIssue>();
foreach (var currentFile in context.PackageReader.GetFiles())
{
var extension = Path.GetExtension(currentFile);
if (!extension.Equals(".dll", StringComparison.OrdinalIgnoreCase) &&
!extension.Equals(".exe", StringComparison.OrdinalIgnoreCase))
{
continue;
}
using (var packageFileStream = context.PackageReader.GetStream(currentFile))
using (var stream = new MemoryStream())
{
// packageFileStream is not a seekable stream. So wrap it in a memory stream for PEReader to consume.
packageFileStream.CopyTo(stream);
stream.Position = 0;
PEReader peReader = null;
MetadataReader reader;
try
{
peReader = new PEReader(stream);
reader = peReader.GetMetadataReader();
}
catch
{
// This assembly is not managed.
peReader?.Dispose();
continue;
}
using (peReader)
{
foreach (var handle in reader.CustomAttributes)
{
var customAttribute = reader.GetCustomAttribute(handle);
string typeName;
if (customAttribute.Constructor.Kind == HandleKind.MemberReference)
{
var ctor = reader.GetMemberReference((MemberReferenceHandle)customAttribute.Constructor);
var type = reader.GetTypeReference((TypeReferenceHandle)ctor.Parent);
typeName = reader.GetString(type.Name);
}
else if (customAttribute.Constructor.Kind == HandleKind.MethodDefinition)
{
var method = reader.GetMethodDefinition((MethodDefinitionHandle)customAttribute.Constructor);
var type = reader.GetTypeDefinition(method.GetDeclaringType());
typeName = reader.GetString(type.Name);
}
else
{
throw new InvalidOperationException($"Unknown CustomAttribute constructor type '{customAttribute.Constructor.Kind}");
}
if (string.Equals(typeof(DebuggableAttribute).Name, typeName, StringComparison.Ordinal))
{
var attribute = customAttribute.DecodeValue(NullProvider.Instance);
var debuggingMode = (DebuggableAttribute.DebuggingModes)attribute.FixedArguments.Single().Value;
if (debuggingMode.HasFlag(DebuggableAttribute.DebuggingModes.Default) ||
debuggingMode.HasFlag(DebuggableAttribute.DebuggingModes.DisableOptimizations))
{
issues.Add(PackageIssueFactory.AssemblyHasIncorrectBuildConfiguration(currentFile));
}
;
break;
}
}
}
}
}
return(issues);
}
