public static bool IsNativeAssembly(string path)
{
if (String.IsNullOrEmpty(path))
{
throw new ArgumentNullException(nameof(path));
}
if (String.Equals(Path.GetExtension(path), ".manifest", StringComparison.Ordinal))
{
return(true);
}
return(EmbeddedManifestReader.Read(path) != null);
}
private static Manifest ReadEmbeddedManifest(string path)
{
Stream m = EmbeddedManifestReader.Read(path);
if (m == null)
{
return(null);
}
Util.WriteLogFile(Path.GetFileNameWithoutExtension(path) + ".embedded.xml", m);
Manifest manifest = ReadManifest(m, false);
manifest.SourcePath = path;
return(manifest);
}
/// <summary>
/// Obtains identity of the specified native assembly.
/// File must be either a PE with an embedded xml manifest, or a stand-alone xml manifest file.
/// Returns null if identity could not be obtained.
/// </summary>
/// <param name="path">The name of the file from which the identity is to be obtained.</param>
/// <returns>The assembly identity of the specified file.</returns>
public static AssemblyIdentity FromNativeAssembly(string path)
{
if (!FileSystems.Default.FileExists(path))
{
return(null);
}
if (PathUtil.IsPEFile(path))
{
Stream m = EmbeddedManifestReader.Read(path);
if (m == null)
{
return(null);
}
return(FromManifest(m));
}
return(FromManifest(path));
}
public static Stream Read(string path)
{
if (path == null)
{
throw new ArgumentNullException(nameof(path));
}
if (!path.EndsWith(".manifest", StringComparison.Ordinal) && !path.EndsWith(".dll", StringComparison.Ordinal))
{
// Everything that does not end with .dll or .manifest is not a valid native assembly (this includes
// EXEs with ID1 manifest)
return(null);
}
int t1 = Environment.TickCount;
EmbeddedManifestReader r = new EmbeddedManifestReader(path);
Util.WriteLog(String.Format(CultureInfo.CurrentCulture, "EmbeddedManifestReader.Read t={0}", Environment.TickCount - t1));
return(r._manifest);
}
private static XmlDocument GetXmlDocument(string path)
{
using (Stream s = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.Read))
{
byte[] buffer = new byte[2];
s.Read(buffer, 0, 2);
s.Position = 0;
var document = new XmlDocument();
var xrSettings = new XmlReaderSettings {
DtdProcessing = DtdProcessing.Ignore
};
// if first two bytes are "MZ" then we're looking at an .exe or a .dll not a .manifest
if ((buffer[0] == 0x4D) && (buffer[1] == 0x5A))
{
Stream m = EmbeddedManifestReader.Read(path);
if (m == null)
{
throw new BadImageFormatException(null, path);
}
using (XmlReader xr = XmlReader.Create(m, xrSettings))
{
document.Load(xr);
}
}
else
{
using (XmlReader xr = XmlReader.Create(s, xrSettings))
{
document.Load(xr);
}
}
return(document);
}
}
