private ITypeMember Resolve(int index, Context context)
{
var row = _loader.Metadata.GetRow(TableId.MemberRef, index);
string name = row[Schema.MemberRef.Name].String;
var sigBlob = row[Schema.MemberRef.Signature].Blob;
var sig = MetadataSignature.DecodeMember(sigBlob);
SimpleIndex ownerIndex = row[Schema.MemberRef.Class].Value;
var owner = ResolveOwner(ownerIndex, context);
var member = FindMember(owner, name, sig, context);
if (member == null)
{
//TODO: Report warning
#if DEBUG
if (DebugHooks.BreakInvalidMemberReference)
{
Debugger.Break();
FindMember(owner, name, sig, context);
}
#endif
throw new BadMetadataException(string.Format("Unable to resolve member ref {0}", ownerIndex));
}
return(member);
}
/// <summary>
/// Sign pdf document with metadata signature
/// </summary>
public static void Run()
{
Console.WriteLine("\n--------------------------------------------------------------------------------------------------------------------");
Console.WriteLine("[Example Advanced Usage] # SignPdfWithStandardMetadata : Sign pdf document with metadata signature\n");
// The path to the documents directory.
string filePath = Constants.SAMPLE_PDF;
string fileName = Path.GetFileName(filePath);
string outputFilePath = Path.Combine(Constants.OutputPath, "SignPdfWithStandardMetadata", fileName);
using (Signature signature = new Signature(filePath))
{
// setup options with text of signature
MetadataSignOptions options = new MetadataSignOptions();
// Using standard Pdf Metadata Signatures with new values
MetadataSignature[] signatures = new MetadataSignature[]
{
PdfMetadataSignatures.Author.Clone("Mr.Scherlock Holmes"),
PdfMetadataSignatures.CreateDate.Clone(DateTime.Now.AddDays(-1)),
PdfMetadataSignatures.MetadataDate.Clone(DateTime.Now.AddDays(-2)),
PdfMetadataSignatures.CreatorTool.Clone("GD.Signature-Test"),
PdfMetadataSignatures.ModifyDate.Clone(DateTime.Now.AddDays(-13)),
PdfMetadataSignatures.Producer.Clone("GroupDocs-Producer"),
PdfMetadataSignatures.Entry.Clone("Signature"),
PdfMetadataSignatures.Keywords.Clone("GroupDocs, Signature, Metadata, Creation Tool"),
PdfMetadataSignatures.Title.Clone("Metadata Example"),
PdfMetadataSignatures.Subject.Clone("Metadata Test Example"),
PdfMetadataSignatures.Description.Clone("Metadata Test example description"),
PdfMetadataSignatures.Creator.Clone("GroupDocs.Signature"),
};
options.Signatures.AddRange(signatures);
// sign document to file
SignResult signResult = signature.Sign(outputFilePath, options);
Console.WriteLine($"\nSource document signed successfully with {signResult.Succeeded.Count} signature(s).\nFile saved at {outputFilePath}.");
}
}
private ITypeMember FindMember(IType type, string name, MetadataSignature sig, Context context)
{
if (type == null)
{
return(null);
}
//special multidimensional array methods
if (type.IsArray)
{
switch (name)
{
case CLRNames.Constructor:
return(CreateArrayCtor(new Context(type, context.Method), (MethodSignature)sig));
case CLRNames.Array.Getter:
return(GetArrayGetter(new Context(type, context.Method), (MethodSignature)sig));
case CLRNames.Array.Address:
return(GetArrayAddress(new Context(type, context.Method), (MethodSignature)sig));
case CLRNames.Array.Setter:
return(GetArraySetter(new Context(type, context.Method), (MethodSignature)sig));
}
}
IType[] types = null;
MemberType kind;
var typeContext = new Context(type, context != null && context.IsGeneric);
switch (sig.Kind)
{
case SignatureKind.Field:
kind = MemberType.Field;
break;
case SignatureKind.Method:
return(FindMethod(type, name, (MethodSignature)sig, typeContext));
case SignatureKind.Property:
types = ResolveMethodSignature((MethodSignature)sig, typeContext, true);
kind = MemberType.Property;
break;
default:
throw new BadSignatureException(string.Format("Invalid member signature {0}", sig));
}
while (type != null)
{
var member = FindMember(type, kind, name, types);
if (member != null)
{
return(member);
}
type = type.BaseType;
}
return(null);
}
