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source: branches/RemoveBackwardsCompatibility/HeuristicLab.ExtLibs/HeuristicLab.EPPlus/4.0.3/EPPlus-4.0.3/VBA/ExcelVbaProject.cs @ 13346

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Last change on this file since 13346 was 12463, checked in by ascheibe, 10 years ago
#2399 fixed EPPlus so that it compiles on Linux
File size: 47.5 KB

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1	/*******************************************************************************
2	* You may amend and distribute as you like, but don't remove this header!
3	*
4	* EPPlus provides server-side generation of Excel 2007/2010 spreadsheets.
5	* See http://www.codeplex.com/EPPlus for details.
6	*
7	* Copyright (C) 2011 Jan Källman
8	*
9	* All code and executables are provided "as is" with no warranty either express or implied.
10	* The author accepts no liability for any damage or loss of business that this product may cause.
11	*
12	* If you want to understand this code have a look at the Office VBA File Format Structure Specification (MS-OVBA.PDF) or
13	* http://msdn.microsoft.com/en-us/library/cc313094(v=office.12).aspx
14	*
15	* * Code change notes:
16	*
17	* Author Change Date
18	*******************************************************************************
19	* Jan Källman Added 26-MAR-2012
20	*******************************************************************************/
21	using System;
22	using System.Collections.Generic;
23	using System.Globalization;
24	using System.Linq;
25	using System.Text;
26	using System.IO;
27	using OfficeOpenXml.Utils;
28	using System.Security.Cryptography.Pkcs;
29	using System.Security.Cryptography.X509Certificates;
30	using System.Security.Cryptography;
31	using System.Text.RegularExpressions;
32
33	namespace OfficeOpenXml.VBA
34	{
35	/// <summary>
36	/// Represents the VBA project part of the package
37	/// </summary>
38	public class ExcelVbaProject
39	{
40	const string schemaRelVba = "http://schemas.microsoft.com/office/2006/relationships/vbaProject";
41	internal const string PartUri = @"/xl/vbaProject.bin";
42	#region Classes & Enums
43	/// <summary>
44	/// Type of system where the VBA project was created.
45	/// </summary>
46	public enum eSyskind
47	{
48	Win16 = 0,
49	Win32 = 1,
50	Macintosh = 2,
51	Win64 = 3
52	}
53
54	#endregion
55	internal ExcelVbaProject(ExcelWorkbook wb)
56	{
57	_wb = wb;
58	_pck = _wb._package.Package;
59	References = new ExcelVbaReferenceCollection();
60	Modules = new ExcelVbaModuleCollection(this);
61	var rel = _wb.Part.GetRelationshipsByType(schemaRelVba).FirstOrDefault();
62	if (rel != null)
63	{
64	Uri = UriHelper.ResolvePartUri(rel.SourceUri, rel.TargetUri);
65	Part = _pck.GetPart(Uri);
66	#if !MONO
67	GetProject();
68	#endif
69	}
70	else
71	{
72	Lcid = 0;
73	Part = null;
74	}
75	}
76	internal ExcelWorkbook _wb;
77	internal Packaging.ZipPackage _pck;
78	#region Dir Stream Properties
79	/// <summary>
80	/// System kind. Default Win32.
81	/// </summary>
82	public eSyskind SystemKind { get; set; }
83	/// <summary>
84	/// Name of the project
85	/// </summary>
86	public string Name { get; set; }
87	/// <summary>
88	/// A description of the project
89	/// </summary>
90	public string Description { get; set; }
91	/// <summary>
92	/// A helpfile
93	/// </summary>
94	public string HelpFile1 { get; set; }
95	/// <summary>
96	/// Secondary helpfile
97	/// </summary>
98	public string HelpFile2 { get; set; }
99	/// <summary>
100	/// Context if refering the helpfile
101	/// </summary>
102	public int HelpContextID { get; set; }
103	/// <summary>
104	/// Conditional compilation constants
105	/// </summary>
106	public string Constants { get; set; }
107	/// <summary>
108	/// Codepage for encoding. Default is current regional setting.
109	/// </summary>
110	public int CodePage { get; internal set; }
111	internal int LibFlags { get; set; }
112	internal int MajorVersion { get; set; }
113	internal int MinorVersion { get; set; }
114	internal int Lcid { get; set; }
115	internal int LcidInvoke { get; set; }
116	internal string ProjectID { get; set; }
117	internal string ProjectStreamText { get; set; }
118	/// <summary>
119	/// Project references
120	/// </summary>
121	public ExcelVbaReferenceCollection References { get; set; }
122	/// <summary>
123	/// Code Modules (Modules, classes, designer code)
124	/// </summary>
125	public ExcelVbaModuleCollection Modules { get; set; }
126	ExcelVbaSignature _signature = null;
127	/// <summary>
128	/// The digital signature
129	/// </summary>
130	public ExcelVbaSignature Signature
131	{
132	get
133	{
134	if (_signature == null)
135	{
136	_signature=new ExcelVbaSignature(Part);
137	}
138	return _signature;
139	}
140	}
141	ExcelVbaProtection _protection=null;
142	/// <summary>
143	/// VBA protection
144	/// </summary>
145	public ExcelVbaProtection Protection
146	{
147	get
148	{
149	if (_protection == null)
150	{
151	_protection = new ExcelVbaProtection(this);
152	}
153	return _protection;
154	}
155	}
156	#endregion
157	#if !MONO
158	#region Read Project
159	private void GetProject()
160	{
161
162	var stream = Part.GetStream();
163	byte[] vba;
164	vba = new byte[stream.Length];
165	stream.Read(vba, 0, (int)stream.Length);
166	Document = new CompoundDocument(vba);
167
168	ReadDirStream();
169	ProjectStreamText = Encoding.GetEncoding(CodePage).GetString(Document.Storage.DataStreams["PROJECT"]);
170	ReadModules();
171	ReadProjectProperties();
172	}
173	private void ReadModules()
174	{
175	foreach (var modul in Modules)
176	{
177	var stream = Document.Storage.SubStorage["VBA"].DataStreams[modul.streamName];
178	var byCode = CompoundDocument.DecompressPart(stream, (int)modul.ModuleOffset);
179	string code = Encoding.GetEncoding(CodePage).GetString(byCode);
180	int pos=0;
181	while(pos+9<code.Length && code.Substring(pos,9)=="Attribute")
182	{
183	int linePos=code.IndexOf("\r\n",pos);
184	string[] lineSplit;
185	if(linePos>0)
186	{
187	lineSplit = code.Substring(pos + 9, linePos - pos - 9).Split('=');
188	}
189	else
190	{
191	lineSplit=code.Substring(pos+9).Split(new char[]{'='},1);
192	}
193	if (lineSplit.Length > 1)
194	{
195	lineSplit[1] = lineSplit[1].Trim();
196	var attr =
197	new ExcelVbaModuleAttribute()
198	{
199	Name = lineSplit[0].Trim(),
200	DataType = lineSplit[1].StartsWith("\"") ? eAttributeDataType.String : eAttributeDataType.NonString,
201	Value = lineSplit[1].StartsWith("\"") ? lineSplit[1].Substring(1, lineSplit[1].Length - 2) : lineSplit[1]
202	};
203	modul.Attributes._list.Add(attr);
204	}
205	pos = linePos + 2;
206	}
207	modul.Code=code.Substring(pos);
208	}
209	}
210
211	private void ReadProjectProperties()
212	{
213	_protection = new ExcelVbaProtection(this);
214	string prevPackage = "";
215	var lines = Regex.Split(ProjectStreamText, "\r\n");
216	foreach (string line in lines)
217	{
218	if (line.StartsWith("["))
219	{
220
221	}
222	else
223	{
224	var split = line.Split('=');
225	if (split.Length > 1 && split[1].Length > 1 && split[1].StartsWith("\"")) //Remove any double qouates
226	{
227	split[1] = split[1].Substring(1, split[1].Length - 2);
228	}
229	switch (split[0])
230	{
231	case "ID":
232	ProjectID = split[1];
233	break;
234	case "Document":
235	string mn = split[1].Substring(0, split[1].IndexOf("/&H"));
236	Modules[mn].Type = eModuleType.Document;
237	break;
238	case "Package":
239	prevPackage = split[1];
240	break;
241	case "BaseClass":
242	Modules[split[1]].Type = eModuleType.Designer;
243	Modules[split[1]].ClassID = prevPackage;
244	break;
245	case "Module":
246	Modules[split[1]].Type = eModuleType.Module;
247	break;
248	case "Class":
249	Modules[split[1]].Type = eModuleType.Class;
250	break;
251	case "HelpFile":
252	case "Name":
253	case "HelpContextID":
254	case "Description":
255	case "VersionCompatible32":
256	break;
257	//393222000"
258	case "CMG":
259	byte[] cmg = Decrypt(split[1]);
260	_protection.UserProtected = (cmg[0] & 1) != 0;
261	_protection.HostProtected = (cmg[0] & 2) != 0;
262	_protection.VbeProtected = (cmg[0] & 4) != 0;
263	break;
264	case "DPB":
265	byte[] dpb = Decrypt(split[1]);
266	if (dpb.Length >= 28)
267	{
268	byte reserved = dpb[0];
269	var flags = new byte[3];
270	Array.Copy(dpb, 1, flags, 0, 3);
271	var keyNoNulls = new byte[4];
272	_protection.PasswordKey = new byte[4];
273	Array.Copy(dpb, 4, keyNoNulls, 0, 4);
274	var hashNoNulls = new byte[20];
275	_protection.PasswordHash = new byte[20];
276	Array.Copy(dpb, 8, hashNoNulls, 0, 20);
277	//Handle 0x00 bitwise 2.4.4.3
278	for (int i = 0; i < 24; i++)
279	{
280	int bit = 128 >> (int)((i % 8));
281	if (i < 4)
282	{
283	if ((int)(flags[0] & bit) == 0)
284	{
285	_protection.PasswordKey[i] = 0;
286	}
287	else
288	{
289	_protection.PasswordKey[i] = keyNoNulls[i];
290	}
291	}
292	else
293	{
294	int flagIndex = (i - i % 8) / 8;
295	if ((int)(flags[flagIndex] & bit) == 0)
296	{
297	_protection.PasswordHash[i - 4] = 0;
298	}
299	else
300	{
301	_protection.PasswordHash[i - 4] = hashNoNulls[i - 4];
302	}
303	}
304	}
305	}
306	break;
307	case "GC":
308	_protection.VisibilityState = Decrypt(split[1])[0] == 0xFF;
309
310	break;
311	}
312	}
313	}
314	}
315
316	/// <summary>
317	/// 2.4.3.3 Decryption
318	/// </summary>
319	/// <param name="value">Byte hex string</param>
320	/// <returns>The decrypted value</returns>
321	private byte[] Decrypt(string value)
322	{
323	byte[] enc = GetByte(value);
324	byte[] dec = new byte[(value.Length - 1)];
325	byte seed, version, projKey, ignoredLength;
326	seed = enc[0];
327	dec[0] = (byte)(enc[1] ^ seed);
328	dec[1] = (byte)(enc[2] ^ seed);
329	for (int i = 2; i < enc.Length - 1; i++)
330	{
331	dec[i] = (byte)(enc[i + 1] ^ (enc[i - 1] + dec[i - 1]));
332	}
333	version = dec[0];
334	projKey = dec[1];
335	ignoredLength = (byte)((seed & 6) / 2);
336	int datalength = BitConverter.ToInt32(dec, ignoredLength + 2);
337	var data = new byte[datalength];
338	Array.Copy(dec, 6 + ignoredLength, data, 0, datalength);
339	return data;
340	}
341	/// <summary>
342	/// 2.4.3.2 Encryption
343	/// </summary>
344	/// <param name="value"></param>
345	/// <returns>Byte hex string</returns>
346	private string Encrypt(byte[] value)
347	{
348	byte[] seed = new byte[1];
349	var rn = RandomNumberGenerator.Create();
350	rn.GetBytes(seed);
351	BinaryWriter br = new BinaryWriter(new MemoryStream());
352	byte[] enc = new byte[value.Length + 10];
353	enc[0] = seed[0];
354	enc[1] = (byte)(2 ^ seed[0]);
355
356	byte projKey = 0;
357
358	foreach (var c in ProjectID)
359	{
360	projKey += (byte)c;
361	}
362	enc[2] = (byte)(projKey ^ seed[0]);
363	var ignoredLength = (seed[0] & 6) / 2;
364	for (int i = 0; i < ignoredLength; i++)
365	{
366	br.Write(seed[0]);
367	}
368	br.Write(value.Length);
369	br.Write(value);
370
371	int pos = 3;
372	byte pb = projKey;
373	foreach (var b in ((MemoryStream)br.BaseStream).ToArray())
374	{
375	enc[pos] = (byte)(b ^ (enc[pos - 2] + pb));
376	pos++;
377	pb = b;
378	}
379
380	return GetString(enc, pos - 1);
381	}
382	private string GetString(byte[] value, int max)
383	{
384	string ret = "";
385	for (int i = 0; i <= max; i++)
386	{
387	if (value[i] < 16)
388	{
389	ret += "0" + value[i].ToString("x");
390	}
391	else
392	{
393	ret += value[i].ToString("x");
394	}
395	}
396	return ret.ToUpper(CultureInfo.InvariantCulture);
397	}
398	private byte[] GetByte(string value)
399	{
400	byte[] ret = new byte[value.Length / 2];
401	for (int i = 0; i < ret.Length; i++)
402	{
403	ret[i] = byte.Parse(value.Substring(i * 2, 2), System.Globalization.NumberStyles.AllowHexSpecifier);
404	}
405	return ret;
406	}
407	private void ReadDirStream()
408	{
409	byte[] dir = CompoundDocument.DecompressPart(Document.Storage.SubStorage["VBA"].DataStreams["dir"]);
410	MemoryStream ms = new MemoryStream(dir);
411	BinaryReader br = new BinaryReader(ms);
412	ExcelVbaReference currentRef = null;
413	string referenceName = "";
414	ExcelVBAModule currentModule = null;
415	bool terminate = false;
416	while (br.BaseStream.Position < br.BaseStream.Length && terminate == false)
417	{
418	ushort id = br.ReadUInt16();
419	uint size = br.ReadUInt32();
420	switch (id)
421	{
422	case 0x01:
423	SystemKind = (eSyskind)br.ReadUInt32();
424	break;
425	case 0x02:
426	Lcid = (int)br.ReadUInt32();
427	break;
428	case 0x03:
429	CodePage = (int)br.ReadUInt16();
430	break;
431	case 0x04:
432	Name = GetString(br, size);
433	break;
434	case 0x05:
435	Description = GetUnicodeString(br, size);
436	break;
437	case 0x06:
438	HelpFile1 = GetString(br, size);
439	break;
440	case 0x3D:
441	HelpFile2 = GetString(br, size);
442	break;
443	case 0x07:
444	HelpContextID = (int)br.ReadUInt32();
445	break;
446	case 0x08:
447	LibFlags = (int)br.ReadUInt32();
448	break;
449	case 0x09:
450	MajorVersion = (int)br.ReadUInt32();
451	MinorVersion = (int)br.ReadUInt16();
452	break;
453	case 0x0C:
454	Constants = GetUnicodeString(br, size);
455	break;
456	case 0x0D:
457	uint sizeLibID = br.ReadUInt32();
458	var regRef = new ExcelVbaReference();
459	regRef.Name = referenceName;
460	regRef.ReferenceRecordID = id;
461	regRef.Libid = GetString(br, sizeLibID);
462	uint reserved1 = br.ReadUInt32();
463	ushort reserved2 = br.ReadUInt16();
464	References.Add(regRef);
465	break;
466	case 0x0E:
467	var projRef = new ExcelVbaReferenceProject();
468	projRef.ReferenceRecordID = id;
469	projRef.Name = referenceName;
470	sizeLibID = br.ReadUInt32();
471	projRef.Libid = GetString(br, sizeLibID);
472	sizeLibID = br.ReadUInt32();
473	projRef.LibIdRelative = GetString(br, sizeLibID);
474	projRef.MajorVersion = br.ReadUInt32();
475	projRef.MinorVersion = br.ReadUInt16();
476	References.Add(projRef);
477	break;
478	case 0x0F:
479	ushort modualCount = br.ReadUInt16();
480	break;
481	case 0x13:
482	ushort cookie = br.ReadUInt16();
483	break;
484	case 0x14:
485	LcidInvoke = (int)br.ReadUInt32();
486	break;
487	case 0x16:
488	referenceName = GetUnicodeString(br, size);
489	break;
490	case 0x19:
491	currentModule = new ExcelVBAModule();
492	currentModule.Name = GetUnicodeString(br, size);
493	Modules.Add(currentModule);
494	break;
495	case 0x1A:
496	currentModule.streamName = GetUnicodeString(br, size);
497	break;
498	case 0x1C:
499	currentModule.Description = GetUnicodeString(br, size);
500	break;
501	case 0x1E:
502	currentModule.HelpContext = (int)br.ReadUInt32();
503	break;
504	case 0x21:
505	case 0x22:
506	break;
507	case 0x2B: //Modul Terminator
508	break;
509	case 0x2C:
510	currentModule.Cookie = br.ReadUInt16();
511	break;
512	case 0x31:
513	currentModule.ModuleOffset = br.ReadUInt32();
514	break;
515	case 0x10:
516	terminate = true;
517	break;
518	case 0x30:
519	var extRef = (ExcelVbaReferenceControl)currentRef;
520	var sizeExt = br.ReadUInt32();
521	extRef.LibIdExternal = GetString(br, sizeExt);
522
523	uint reserved4 = br.ReadUInt32();
524	ushort reserved5 = br.ReadUInt16();
525	extRef.OriginalTypeLib = new Guid(br.ReadBytes(16));
526	extRef.Cookie = br.ReadUInt32();
527	break;
528	case 0x33:
529	currentRef = new ExcelVbaReferenceControl();
530	currentRef.ReferenceRecordID = id;
531	currentRef.Name = referenceName;
532	currentRef.Libid = GetString(br, size);
533	References.Add(currentRef);
534	break;
535	case 0x2F:
536	var contrRef = (ExcelVbaReferenceControl)currentRef;
537	contrRef.ReferenceRecordID = id;
538
539	var sizeTwiddled = br.ReadUInt32();
540	contrRef.LibIdTwiddled = GetString(br, sizeTwiddled);
541	var r1 = br.ReadUInt32();
542	var r2 = br.ReadUInt16();
543
544	break;
545	case 0x25:
546	currentModule.ReadOnly = true;
547	break;
548	case 0x28:
549	currentModule.Private = true;
550	break;
551	default:
552	break;
553	}
554	}
555	}
556	#endregion
557
558	#region Save Project
559	internal void Save()
560	{
561	if (Validate())
562	{
563	CompoundDocument doc = new CompoundDocument();
564	doc.Storage = new CompoundDocument.StoragePart();
565	var store = new CompoundDocument.StoragePart();
566	doc.Storage.SubStorage.Add("VBA", store);
567
568	store.DataStreams.Add("_VBA_PROJECT", CreateVBAProjectStream());
569	store.DataStreams.Add("dir", CreateDirStream());
570	foreach (var module in Modules)
571	{
572	store.DataStreams.Add(module.Name, CompoundDocument.CompressPart(Encoding.GetEncoding(CodePage).GetBytes(module.Attributes.GetAttributeText() + module.Code)));
573	}
574
575	//Copy streams from the template, if used.
576	if (Document != null)
577	{
578	foreach (var ss in Document.Storage.SubStorage)
579	{
580	if (ss.Key != "VBA")
581	{
582	doc.Storage.SubStorage.Add(ss.Key, ss.Value);
583	}
584	}
585	foreach (var s in Document.Storage.DataStreams)
586	{
587	if (s.Key != "dir" && s.Key != "PROJECT" && s.Key != "PROJECTwm")
588	{
589	doc.Storage.DataStreams.Add(s.Key, s.Value);
590	}
591	}
592	}
593
594	doc.Storage.DataStreams.Add("PROJECT", CreateProjectStream());
595	doc.Storage.DataStreams.Add("PROJECTwm", CreateProjectwmStream());
596
597	if (Part == null)
598	{
599	Uri = new Uri(PartUri, UriKind.Relative);
600	Part = _pck.CreatePart(Uri, ExcelPackage.schemaVBA);
601	var rel = _wb.Part.CreateRelationship(Uri, Packaging.TargetMode.Internal, schemaRelVba);
602	}
603	var vbaBuffer=doc.Save();
604	var st = Part.GetStream(FileMode.Create);
605	st.Write(vbaBuffer, 0, vbaBuffer.Length);
606	st.Flush();
607	//Save the digital signture
608	Signature.Save(this);
609	}
610	}
611
612	private bool Validate()
613	{
614	Description = Description ?? "";
615	HelpFile1 = HelpFile1 ?? "";
616	HelpFile2 = HelpFile2 ?? "";
617	Constants = Constants ?? "";
618	return true;
619	}
620
621	/// <summary>
622	/// MS-OVBA 2.3.4.1
623	/// </summary>
624	/// <returns></returns>
625	private byte[] CreateVBAProjectStream()
626	{
627	BinaryWriter bw = new BinaryWriter(new MemoryStream());
628	bw.Write((ushort)0x61CC); //Reserved1
629	bw.Write((ushort)0xFFFF); //Version
630	bw.Write((byte)0x0); //Reserved3
631	bw.Write((ushort)0x0); //Reserved4
632	return ((MemoryStream)bw.BaseStream).ToArray();
633	}
634	/// <summary>
635	/// MS-OVBA 2.3.4.1
636	/// </summary>
637	/// <returns></returns>
638	private byte[] CreateDirStream()
639	{
640	BinaryWriter bw = new BinaryWriter(new MemoryStream());
641
642	/**** PROJECTINFORMATION Record ****/
643	bw.Write((ushort)1); //ID
644	bw.Write((uint)4); //Size
645	bw.Write((uint)SystemKind); //SysKind
646
647	bw.Write((ushort)2); //ID
648	bw.Write((uint)4); //Size
649	bw.Write((uint)Lcid); //Lcid
650
651	bw.Write((ushort)0x14); //ID
652	bw.Write((uint)4); //Size
653	bw.Write((uint)LcidInvoke); //Lcid Invoke
654
655	bw.Write((ushort)3); //ID
656	bw.Write((uint)2); //Size
657	bw.Write((ushort)CodePage); //Codepage
658
659	//ProjectName
660	bw.Write((ushort)4); //ID
661	bw.Write((uint)Name.Length); //Size
662	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(Name)); //Project Name
663
664	//Description
665	bw.Write((ushort)5); //ID
666	bw.Write((uint)Description.Length); //Size
667	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(Description)); //Project Name
668	bw.Write((ushort)0x40); //ID
669	bw.Write((uint)Description.Length*2); //Size
670	bw.Write(Encoding.Unicode.GetBytes(Description)); //Project Description
671
672	//Helpfiles
673	bw.Write((ushort)6); //ID
674	bw.Write((uint)HelpFile1.Length); //Size
675	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(HelpFile1)); //HelpFile1
676	bw.Write((ushort)0x3D); //ID
677	bw.Write((uint)HelpFile2.Length); //Size
678	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(HelpFile2)); //HelpFile2
679
680	//Help context id
681	bw.Write((ushort)7); //ID
682	bw.Write((uint)4); //Size
683	bw.Write((uint)HelpContextID); //Help context id
684
685	//Libflags
686	bw.Write((ushort)8); //ID
687	bw.Write((uint)4); //Size
688	bw.Write((uint)0); //Help context id
689
690	//Vba Version
691	bw.Write((ushort)9); //ID
692	bw.Write((uint)4); //Reserved
693	bw.Write((uint)MajorVersion); //Reserved
694	bw.Write((ushort)MinorVersion); //Help context id
695
696	//Constants
697	bw.Write((ushort)0x0C); //ID
698	bw.Write((uint)Constants.Length); //Size
699	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(Constants)); //Help context id
700	bw.Write((ushort)0x3C); //ID
701	bw.Write((uint)Constants.Length/2); //Size
702	bw.Write(Encoding.Unicode.GetBytes(Constants)); //HelpFile2
703
704	/**** PROJECTREFERENCES Record ****/
705	foreach (var reference in References)
706	{
707	WriteNameReference(bw, reference);
708
709	if (reference.ReferenceRecordID == 0x2F)
710	{
711	WriteControlReference(bw, reference);
712	}
713	else if (reference.ReferenceRecordID == 0x33)
714	{
715	WriteOrginalReference(bw, reference);
716	}
717	else if (reference.ReferenceRecordID == 0x0D)
718	{
719	WriteRegisteredReference(bw, reference);
720	}
721	else if (reference.ReferenceRecordID == 0x0E)
722	{
723	WriteProjectReference(bw, reference);
724	}
725	}
726
727	bw.Write((ushort)0x0F);
728	bw.Write((uint)0x02);
729	bw.Write((ushort)Modules.Count);
730	bw.Write((ushort)0x13);
731	bw.Write((uint)0x02);
732	bw.Write((ushort)0xFFFF);
733
734	foreach (var module in Modules)
735	{
736	WriteModuleRecord(bw, module);
737	}
738	bw.Write((ushort)0x10); //Terminator
739	bw.Write((uint)0);
740
741	return CompoundDocument.CompressPart(((MemoryStream)bw.BaseStream).ToArray());
742	}
743
744	private void WriteModuleRecord(BinaryWriter bw, ExcelVBAModule module)
745	{
746	bw.Write((ushort)0x19);
747	bw.Write((uint)module.Name.Length);
748	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(module.Name)); //Name
749
750	bw.Write((ushort)0x47);
751	bw.Write((uint)module.Name.Length*2);
752	bw.Write(Encoding.Unicode.GetBytes(module.Name)); //Name
753
754	bw.Write((ushort)0x1A);
755	bw.Write((uint)module.Name.Length);
756	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(module.Name)); //Stream Name
757
758	bw.Write((ushort)0x32);
759	bw.Write((uint)module.Name.Length*2);
760	bw.Write(Encoding.Unicode.GetBytes(module.Name)); //Stream Name
761
762	module.Description = module.Description ?? "";
763	bw.Write((ushort)0x1C);
764	bw.Write((uint)module.Description.Length);
765	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(module.Description)); //Description
766
767	bw.Write((ushort)0x48);
768	bw.Write((uint)module.Description.Length*2);
769	bw.Write(Encoding.Unicode.GetBytes(module.Description)); //Description
770
771	bw.Write((ushort)0x31);
772	bw.Write((uint)4);
773	bw.Write((uint)0); //Module Stream Offset (No PerformanceCache)
774
775	bw.Write((ushort)0x1E);
776	bw.Write((uint)4);
777	bw.Write((uint)module.HelpContext); //Help context ID
778
779	bw.Write((ushort)0x2C);
780	bw.Write((uint)2);
781	bw.Write((ushort)0xFFFF); //Help context ID
782
783	bw.Write((ushort)(module.Type == eModuleType.Module ? 0x21 : 0x22));
784	bw.Write((uint)0);
785
786	if (module.ReadOnly)
787	{
788	bw.Write((ushort)0x25);
789	bw.Write((uint)0); //Readonly
790	}
791
792	if (module.Private)
793	{
794	bw.Write((ushort)0x28);
795	bw.Write((uint)0); //Private
796	}
797
798	bw.Write((ushort)0x2B); //Terminator
799	bw.Write((uint)0);
800	}
801
802	private void WriteNameReference(BinaryWriter bw, ExcelVbaReference reference)
803	{
804	//Name record
805	bw.Write((ushort)0x16); //ID
806	bw.Write((uint)reference.Name.Length); //Size
807	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(reference.Name)); //HelpFile1
808	bw.Write((ushort)0x3E); //ID
809	bw.Write((uint)reference.Name.Length * 2); //Size
810	bw.Write(Encoding.Unicode.GetBytes(reference.Name)); //HelpFile2
811	}
812	private void WriteControlReference(BinaryWriter bw, ExcelVbaReference reference)
813	{
814	WriteOrginalReference(bw, reference);
815
816	bw.Write((ushort)0x2F);
817	var controlRef=(ExcelVbaReferenceControl)reference;
818	bw.Write((uint)(4 + controlRef.LibIdTwiddled.Length + 4 + 2)); // Size of SizeOfLibidTwiddled, LibidTwiddled, Reserved1, and Reserved2.
819	bw.Write((uint)controlRef.LibIdTwiddled.Length); //Size
820	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(controlRef.LibIdTwiddled)); //LibID
821	bw.Write((uint)0); //Reserved1
822	bw.Write((ushort)0); //Reserved2
823	WriteNameReference(bw, reference); //Name record again
824	bw.Write((ushort)0x30); //Reserved3
825	bw.Write((uint)(4 + controlRef.LibIdExternal.Length + 4 + 2 + 16 + 4)); //Size of SizeOfLibidExtended, LibidExtended, Reserved4, Reserved5, OriginalTypeLib, and Cookie
826	bw.Write((uint)controlRef.LibIdExternal.Length); //Size
827	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(controlRef.LibIdExternal)); //LibID
828	bw.Write((uint)0); //Reserved4
829	bw.Write((ushort)0); //Reserved5
830	bw.Write(controlRef.OriginalTypeLib.ToByteArray());
831	bw.Write((uint)controlRef.Cookie); //Cookie
832	}
833
834	private void WriteOrginalReference(BinaryWriter bw, ExcelVbaReference reference)
835	{
836	bw.Write((ushort)0x33);
837	bw.Write((uint)reference.Libid.Length);
838	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(reference.Libid)); //LibID
839	}
840	private void WriteProjectReference(BinaryWriter bw, ExcelVbaReference reference)
841	{
842	bw.Write((ushort)0x0E);
843	var projRef = (ExcelVbaReferenceProject)reference;
844	bw.Write((uint)(4 + projRef.Libid.Length + 4 + projRef.LibIdRelative.Length+4+2));
845	bw.Write((uint)projRef.Libid.Length);
846	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(projRef.Libid)); //LibAbsolute
847	bw.Write((uint)projRef.LibIdRelative.Length);
848	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(projRef.LibIdRelative)); //LibIdRelative
849	bw.Write(projRef.MajorVersion);
850	bw.Write(projRef.MinorVersion);
851	}
852
853	private void WriteRegisteredReference(BinaryWriter bw, ExcelVbaReference reference)
854	{
855	bw.Write((ushort)0x0D);
856	bw.Write((uint)(4+reference.Libid.Length+4+2));
857	bw.Write((uint)reference.Libid.Length);
858	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(reference.Libid)); //LibID
859	bw.Write((uint)0); //Reserved1
860	bw.Write((ushort)0); //Reserved2
861	}
862
863	private byte[] CreateProjectwmStream()
864	{
865	BinaryWriter bw = new BinaryWriter(new MemoryStream());
866
867	foreach (var module in Modules)
868	{
869	bw.Write(Encoding.GetEncoding(CodePage).GetBytes(module.Name)); //Name
870	bw.Write((byte)0); //Null
871	bw.Write(Encoding.Unicode.GetBytes(module.Name)); //Name
872	bw.Write((ushort)0); //Null
873	}
874	bw.Write((ushort)0); //Null
875	return CompoundDocument.CompressPart(((MemoryStream)bw.BaseStream).ToArray());
876	}
877	private byte[] CreateProjectStream()
878	{
879	StringBuilder sb = new StringBuilder();
880	sb.AppendFormat("ID=\"{0}\"\r\n", ProjectID);
881	foreach(var module in Modules)
882	{
883	if (module.Type == eModuleType.Document)
884	{
885	sb.AppendFormat("Document={0}/&H00000000\r\n", module.Name);
886	}
887	else if (module.Type == eModuleType.Module)
888	{
889	sb.AppendFormat("Module={0}\r\n", module.Name);
890	}
891	else if (module.Type == eModuleType.Class)
892	{
893	sb.AppendFormat("Class={0}\r\n", module.Name);
894	}
895	else
896	{
897	//Designer
898	sb.AppendFormat("Package={0}\r\n", module.ClassID);
899	sb.AppendFormat("BaseClass={0}\r\n", module.Name);
900	}
901	}
902	if (HelpFile1 != "")
903	{
904	sb.AppendFormat("HelpFile={0}\r\n", HelpFile1);
905	}
906	sb.AppendFormat("Name=\"{0}\"\r\n", Name);
907	sb.AppendFormat("HelpContextID={0}\r\n", HelpContextID);
908
909	if (!string.IsNullOrEmpty(Description))
910	{
911	sb.AppendFormat("Description=\"{0}\"\r\n", Description);
912	}
913	sb.AppendFormat("VersionCompatible32=\"393222000\"\r\n");
914
915	sb.AppendFormat("CMG=\"{0}\"\r\n", WriteProtectionStat());
916	sb.AppendFormat("DPB=\"{0}\"\r\n", WritePassword());
917	sb.AppendFormat("GC=\"{0}\"\r\n\r\n", WriteVisibilityState());
918
919	sb.Append("[Host Extender Info]\r\n");
920	sb.Append("&H00000001={3832D640-CF90-11CF-8E43-00A0C911005A};VBE;&H00000000\r\n");
921	sb.Append("\r\n");
922	sb.Append("[Workspace]\r\n");
923	foreach(var module in Modules)
924	{
925	sb.AppendFormat("{0}=0, 0, 0, 0, C \r\n",module.Name);
926	}
927	string s = sb.ToString();
928	return Encoding.GetEncoding(CodePage).GetBytes(s);
929	}
930	private string WriteProtectionStat()
931	{
932	int stat=(_protection.UserProtected ? 1:0) \|
933	(_protection.HostProtected ? 2:0) \|
934	(_protection.VbeProtected ? 4:0);
935
936	return Encrypt(BitConverter.GetBytes(stat));
937	}
938	private string WritePassword()
939	{
940	byte[] nullBits=new byte[3];
941	byte[] nullKey = new byte[4];
942	byte[] nullHash = new byte[20];
943	if (Protection.PasswordKey == null)
944	{
945	return Encrypt(new byte[] { 0 });
946	}
947	else
948	{
949	Array.Copy(Protection.PasswordKey, nullKey, 4);
950	Array.Copy(Protection.PasswordHash, nullHash, 20);
951
952	//Set Null bits
953	for (int i = 0; i < 24; i++)
954	{
955	byte bit = (byte)(128 >> (int)((i % 8)));
956	if (i < 4)
957	{
958	if (nullKey[i] == 0)
959	{
960	nullKey[i] = 1;
961	}
962	else
963	{
964	nullBits[0] \|= bit;
965	}
966	}
967	else
968	{
969	if (nullHash[i - 4] == 0)
970	{
971	nullHash[i - 4] = 1;
972	}
973	else
974	{
975	int byteIndex = (i - i % 8) / 8;
976	nullBits[byteIndex] \|= bit;
977	}
978	}
979	}
980	//Write the Password Hash Data Structure (2.4.4.1)
981	BinaryWriter bw = new BinaryWriter(new MemoryStream());
982	bw.Write((byte)0xFF);
983	bw.Write(nullBits);
984	bw.Write(nullKey);
985	bw.Write(nullHash);
986	bw.Write((byte)0);
987	return Encrypt(((MemoryStream)bw.BaseStream).ToArray());
988	}
989	}
990	private string WriteVisibilityState()
991	{
992	return Encrypt(new byte[] { (byte)(Protection.VisibilityState ? 0xFF : 0) });
993	}
994	#endregion
995	private string GetString(BinaryReader br, uint size)
996	{
997	return GetString(br, size, System.Text.Encoding.GetEncoding(CodePage));
998	}
999	private string GetString(BinaryReader br, uint size, Encoding enc)
1000	{
1001	if (size > 0)
1002	{
1003	byte[] byteTemp = new byte[size];
1004	byteTemp = br.ReadBytes((int)size);
1005	return enc.GetString(byteTemp);
1006	}
1007	else
1008	{
1009	return "";
1010	}
1011	}
1012	private string GetUnicodeString(BinaryReader br, uint size)
1013	{
1014	string s = GetString(br, size);
1015	int reserved = br.ReadUInt16();
1016	uint sizeUC = br.ReadUInt32();
1017	string sUC = GetString(br, sizeUC, System.Text.Encoding.Unicode);
1018	return sUC.Length == 0 ? s : sUC;
1019	}
1020	internal CompoundDocument Document { get; set; }
1021	#endif
1022	internal Packaging.ZipPackagePart Part { get; set; }
1023	internal Uri Uri { get; private set; }
1024	#if !MONO
1025	/// <summary>
1026	/// Create a new VBA Project
1027	/// </summary>
1028	internal void Create()
1029	{
1030	if(Lcid>0)
1031	{
1032	throw (new InvalidOperationException("Package already contains a VBAProject"));
1033	}
1034	ProjectID = "{5DD90D76-4904-47A2-AF0D-D69B4673604E}";
1035	Name = "VBAProject";
1036	SystemKind = eSyskind.Win32; //Default
1037	Lcid = 1033; //English - United States
1038	LcidInvoke = 1033; //English - United States
1039	CodePage = Encoding.Default.CodePage;
1040	MajorVersion = 1361024421;
1041	MinorVersion = 6;
1042	HelpContextID = 0;
1043	Modules.Add(new ExcelVBAModule(_wb.CodeNameChange) { Name = "ThisWorkbook", Code = "", Attributes=GetDocumentAttributes("ThisWorkbook", "0{00020819-0000-0000-C000-000000000046}"), Type = eModuleType.Document, HelpContext = 0 });
1044	foreach (var sheet in _wb.Worksheets)
1045	{
1046	var name = GetModuleNameFromWorksheet(sheet);
1047	if (!Modules.Exists(name))
1048	{
1049	Modules.Add(new ExcelVBAModule(sheet.CodeNameChange) { Name = name, Code = "", Attributes = GetDocumentAttributes(sheet.Name, "0{00020820-0000-0000-C000-000000000046}"), Type = eModuleType.Document, HelpContext = 0 });
1050	}
1051	}
1052	_protection = new ExcelVbaProtection(this) { UserProtected = false, HostProtected = false, VbeProtected = false, VisibilityState = true };
1053	}
1054
1055	internal string GetModuleNameFromWorksheet(ExcelWorksheet sheet)
1056	{
1057	var name = sheet.Name;
1058	if (name.Any(c => c > 255) \|\| this.Modules[name] != null)
1059	{
1060	int i = sheet.PositionID;
1061	name = "Sheet" + i.ToString();
1062	while (this.Modules[name] != null)
1063	{
1064	name = "Sheet" + (++i).ToString(); ;
1065	}
1066	}
1067	return name;
1068	}
1069	internal ExcelVbaModuleAttributesCollection GetDocumentAttributes(string name, string clsid)
1070	{
1071	var attr = new ExcelVbaModuleAttributesCollection();
1072	attr._list.Add(new ExcelVbaModuleAttribute() { Name = "VB_Name", Value = name, DataType = eAttributeDataType.String });
1073	attr._list.Add(new ExcelVbaModuleAttribute() { Name = "VB_Base", Value = clsid, DataType = eAttributeDataType.String });
1074	attr._list.Add(new ExcelVbaModuleAttribute() { Name = "VB_GlobalNameSpace", Value = "False", DataType = eAttributeDataType.NonString });
1075	attr._list.Add(new ExcelVbaModuleAttribute() { Name = "VB_Creatable", Value = "False", DataType = eAttributeDataType.NonString });
1076	attr._list.Add(new ExcelVbaModuleAttribute() { Name = "VB_PredeclaredId", Value = "True", DataType = eAttributeDataType.NonString });
1077	attr._list.Add(new ExcelVbaModuleAttribute() { Name = "VB_Exposed", Value = "False", DataType = eAttributeDataType.NonString });
1078	attr._list.Add(new ExcelVbaModuleAttribute() { Name = "VB_TemplateDerived", Value = "False", DataType = eAttributeDataType.NonString });
1079	attr._list.Add(new ExcelVbaModuleAttribute() { Name = "VB_Customizable", Value = "True", DataType = eAttributeDataType.NonString });
1080
1081	return attr;
1082	}
1083
1084
1085	//internal string GetBlankDocumentModule(string name, string clsid)
1086	//{
1087	// string ret=string.Format("Attribute VB_Name = \"{0}\"\r\n",name);
1088	// ret += string.Format("Attribute VB_Base = \"{0}\"\r\n", clsid); //Microsoft.Office.Interop.Excel.WorksheetClass
1089	// ret += "Attribute VB_GlobalNameSpace = False\r\n";
1090	// ret += "Attribute VB_Creatable = False\r\n";
1091	// ret += "Attribute VB_PredeclaredId = True\r\n";
1092	// ret += "Attribute VB_Exposed = True\r\n";
1093	// ret += "Attribute VB_TemplateDerived = False\r\n";
1094	// ret += "Attribute VB_Customizable = True";
1095	// return ret;
1096	//}
1097	//internal string GetBlankModule(string name)
1098	//{
1099	// return string.Format("Attribute VB_Name = \"{0}\"\r\n", name);
1100	//}
1101	//internal string GetBlankClassModule(string name, bool exposed)
1102	//{
1103	// string ret=string.Format("Attribute VB_Name = \"{0}\"\r\n",name);
1104	// ret += string.Format("Attribute VB_Base = \"{0}\"\r\n", "0{FCFB3D2A-A0FA-1068-A738-08002B3371B5}");
1105	// ret += "Attribute VB_GlobalNameSpace = False\r\n";
1106	// ret += "Attribute VB_Creatable = False\r\n";
1107	// ret += "Attribute VB_PredeclaredId = False\r\n";
1108	// ret += string.Format("Attribute VB_Exposed = {0}\r\n", exposed ? "True" : "False");
1109	// ret += "Attribute VB_TemplateDerived = False\r\n";
1110	// ret += "Attribute VB_Customizable = False\r\n";
1111	// return ret;
1112	//}
1113	#endif
1114	/// <summary>
1115	/// Remove the project from the package
1116	/// </summary>
1117	public void Remove()
1118	{
1119	if (Part == null) return;
1120
1121	foreach (var rel in Part.GetRelationships())
1122	{
1123	_pck.DeleteRelationship(rel.Id);
1124	}
1125	if (_pck.PartExists(Uri))
1126	{
1127	_pck.DeletePart(Uri);
1128	}
1129	Part = null;
1130	Modules.Clear();
1131	References.Clear();
1132	Lcid = 0;
1133	LcidInvoke = 0;
1134	CodePage = 0;
1135	MajorVersion = 0;
1136	MinorVersion = 0;
1137	HelpContextID = 0;
1138	}
1139	public override string ToString()
1140	{
1141	return Name;
1142	}
1143	}
1144	}

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