internal void Save()
{
if (Validate())
{
CompoundDocument doc = new CompoundDocument();
doc.Storage = new CompoundDocument.StoragePart();
var store = new CompoundDocument.StoragePart();
doc.Storage.SubStorage.Add("VBA", store);
store.DataStreams.Add("_VBA_PROJECT", CreateVBAProjectStream());
store.DataStreams.Add("dir", CreateDirStream());
foreach (var module in Modules)
{
store.DataStreams.Add(module.Name, CompoundDocument.CompressPart(Encoding.GetEncoding(CodePage).GetBytes(module.Attributes.GetAttributeText() + module.Code)));
}
//Copy streams from the template, if used.
if (Document != null)
{
foreach (var ss in Document.Storage.SubStorage)
{
if (ss.Key != "VBA")
{
doc.Storage.SubStorage.Add(ss.Key, ss.Value);
}
}
foreach (var s in Document.Storage.DataStreams)
{
if (s.Key != "dir" && s.Key != "PROJECT" && s.Key != "PROJECTwm")
{
doc.Storage.DataStreams.Add(s.Key, s.Value);
}
}
}
doc.Storage.DataStreams.Add("PROJECT", CreateProjectStream());
doc.Storage.DataStreams.Add("PROJECTwm", CreateProjectwmStream());
if (Part == null)
{
Uri = new Uri(PartUri, UriKind.Relative);
Part = _pck.CreatePart(Uri, ExcelPackage.schemaVBA);
var rel = _wb.Part.CreateRelationship(Uri, TargetMode.Internal, schemaRelVba);
}
var vbaBuffer = doc.Save();
var st = Part.GetStream(FileMode.Create);
st.Write(vbaBuffer, 0, vbaBuffer.Length);
st.Flush();
st.Close();
//Save the digital signture
Signature.Save(this);
}
}
private byte[] CreateProjectwmStream()
{
BinaryWriter bw = new BinaryWriter(new MemoryStream());
foreach (var module in Modules)
{
bw.Write(Encoding.GetEncoding(CodePage).GetBytes(module.Name)); //Name
bw.Write((byte)0); //Null
bw.Write(Encoding.Unicode.GetBytes(module.Name)); //Name
bw.Write((ushort)0); //Null
}
bw.Write((ushort)0); //Null
return(CompoundDocument.CompressPart(((MemoryStream)bw.BaseStream).ToArray()));
}
public void Compression()
{
//Compression/Decompression
string value = "#aaabcdefaaaaghijaaaaaklaaamnopqaaaaaaaaaaaarstuvwxyzaaa";
byte[] compValue = CompoundDocument.CompressPart(Encoding.GetEncoding(1252).GetBytes(value));
string decompValue = Encoding.GetEncoding(1252).GetString(CompoundDocument.DecompressPart(compValue));
Assert.AreEqual(value, decompValue);
value = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
compValue = CompoundDocument.CompressPart(Encoding.GetEncoding(1252).GetBytes(value));
decompValue = Encoding.GetEncoding(1252).GetString(CompoundDocument.DecompressPart(compValue));
Assert.AreEqual(value, decompValue);
}
/// <summary>
/// MS-OVBA 2.3.4.1
/// </summary>
/// <returns></returns>
private byte[] CreateDirStream()
{
BinaryWriter bw = new BinaryWriter(new MemoryStream());
/****** PROJECTINFORMATION Record ******/
bw.Write((ushort)1); //ID
bw.Write((uint)4); //Size
bw.Write((uint)SystemKind); //SysKind
bw.Write((ushort)2); //ID
bw.Write((uint)4); //Size
bw.Write((uint)Lcid); //Lcid
bw.Write((ushort)0x14); //ID
bw.Write((uint)4); //Size
bw.Write((uint)LcidInvoke); //Lcid Invoke
bw.Write((ushort)3); //ID
bw.Write((uint)2); //Size
bw.Write((ushort)CodePage); //Codepage
//ProjectName
bw.Write((ushort)4); //ID
bw.Write((uint)Name.Length); //Size
bw.Write(Encoding.GetEncoding(CodePage).GetBytes(Name)); //Project Name
//Description
bw.Write((ushort)5); //ID
bw.Write((uint)Description.Length); //Size
bw.Write(Encoding.GetEncoding(CodePage).GetBytes(Description)); //Project Name
bw.Write((ushort)0x40); //ID
bw.Write((uint)Description.Length * 2); //Size
bw.Write(Encoding.Unicode.GetBytes(Description)); //Project Description
//Helpfiles
bw.Write((ushort)6); //ID
bw.Write((uint)HelpFile1.Length); //Size
bw.Write(Encoding.GetEncoding(CodePage).GetBytes(HelpFile1)); //HelpFile1
bw.Write((ushort)0x3D); //ID
bw.Write((uint)HelpFile2.Length); //Size
bw.Write(Encoding.GetEncoding(CodePage).GetBytes(HelpFile2)); //HelpFile2
//Help context id
bw.Write((ushort)7); //ID
bw.Write((uint)4); //Size
bw.Write((uint)HelpContextID); //Help context id
//Libflags
bw.Write((ushort)8); //ID
bw.Write((uint)4); //Size
bw.Write((uint)0); //Help context id
//Vba Version
bw.Write((ushort)9); //ID
bw.Write((uint)4); //Reserved
bw.Write((uint)MajorVersion); //Reserved
bw.Write((ushort)MinorVersion); //Help context id
//Constants
bw.Write((ushort)0x0C); //ID
bw.Write((uint)Constants.Length); //Size
bw.Write(Encoding.GetEncoding(CodePage).GetBytes(Constants)); //Help context id
bw.Write((ushort)0x3C); //ID
bw.Write((uint)Constants.Length / 2); //Size
bw.Write(Encoding.Unicode.GetBytes(Constants)); //HelpFile2
/****** PROJECTREFERENCES Record ******/
foreach (var reference in References)
{
WriteNameReference(bw, reference);
if (reference.ReferenceRecordID == 0x2F)
{
WriteControlReference(bw, reference);
}
else if (reference.ReferenceRecordID == 0x33)
{
WriteOrginalReference(bw, reference);
}
else if (reference.ReferenceRecordID == 0x0D)
{
WriteRegisteredReference(bw, reference);
}
else if (reference.ReferenceRecordID == 0x0E)
{
WriteProjectReference(bw, reference);
}
}
bw.Write((ushort)0x0F);
bw.Write((uint)0x02);
bw.Write((ushort)Modules.Count);
bw.Write((ushort)0x13);
bw.Write((uint)0x02);
bw.Write((ushort)0xFFFF);
foreach (var module in Modules)
{
WriteModuleRecord(bw, module);
}
bw.Write((ushort)0x10); //Terminator
bw.Write((uint)0);
return(CompoundDocument.CompressPart(((MemoryStream)bw.BaseStream).ToArray()));
}