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[wxWidgets.git] / include / wx / zipstrm.h
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5526e819 1/////////////////////////////////////////////////////////////////////////////
ce7208d4 2// Name: wx/zipstrm.h
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3// Purpose: Streams for Zip files
4// Author: Mike Wetherell
5// RCS-ID: $Id$
6// Copyright: (c) Mike Wetherell
65571936 7// Licence: wxWindows licence
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8/////////////////////////////////////////////////////////////////////////////
9
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10#ifndef _WX_WXZIPSTREAM_H__
11#define _WX_WXZIPSTREAM_H__
5526e819 12
d1af991f 13#include "wx/defs.h"
5526e819 14
5410f572 15#if wxUSE_ZIPSTREAM
d1af991f 16
00375592 17#include "wx/archive.h"
00375592 18#include "wx/filename.h"
5526e819 19
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20// some methods from wxZipInputStream and wxZipOutputStream stream do not get
21// exported/imported when compiled with Mingw versions before 3.4.2. So they
22// are imported/exported individually as a workaround
23#if (defined(__GNUWIN32__) || defined(__MINGW32__)) \
24 && (!defined __GNUC__ \
25 || !defined __GNUC_MINOR__ \
26 || !defined __GNUC_PATCHLEVEL__ \
27 || __GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__ < 30402)
ce7208d4 28#define WXZIPFIX WXDLLIMPEXP_BASE
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29#else
30#define WXZIPFIX
31#endif
5526e819 32
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33/////////////////////////////////////////////////////////////////////////////
34// constants
35
36// Compression Method, only 0 (store) and 8 (deflate) are supported here
37//
38enum wxZipMethod
39{
40 wxZIP_METHOD_STORE,
41 wxZIP_METHOD_SHRINK,
42 wxZIP_METHOD_REDUCE1,
43 wxZIP_METHOD_REDUCE2,
44 wxZIP_METHOD_REDUCE3,
45 wxZIP_METHOD_REDUCE4,
46 wxZIP_METHOD_IMPLODE,
47 wxZIP_METHOD_TOKENIZE,
48 wxZIP_METHOD_DEFLATE,
49 wxZIP_METHOD_DEFLATE64,
50 wxZIP_METHOD_BZIP2 = 12,
51 wxZIP_METHOD_DEFAULT = 0xffff
52};
53
54// Originating File-System.
ce7208d4 55//
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56// These are Pkware's values. Note that Info-zip disagree on some of them,
57// most notably NTFS.
58//
59enum wxZipSystem
60{
61 wxZIP_SYSTEM_MSDOS,
62 wxZIP_SYSTEM_AMIGA,
63 wxZIP_SYSTEM_OPENVMS,
64 wxZIP_SYSTEM_UNIX,
65 wxZIP_SYSTEM_VM_CMS,
66 wxZIP_SYSTEM_ATARI_ST,
67 wxZIP_SYSTEM_OS2_HPFS,
68 wxZIP_SYSTEM_MACINTOSH,
69 wxZIP_SYSTEM_Z_SYSTEM,
70 wxZIP_SYSTEM_CPM,
71 wxZIP_SYSTEM_WINDOWS_NTFS,
72 wxZIP_SYSTEM_MVS,
73 wxZIP_SYSTEM_VSE,
74 wxZIP_SYSTEM_ACORN_RISC,
75 wxZIP_SYSTEM_VFAT,
76 wxZIP_SYSTEM_ALTERNATE_MVS,
77 wxZIP_SYSTEM_BEOS,
78 wxZIP_SYSTEM_TANDEM,
79 wxZIP_SYSTEM_OS_400
80};
81
82// Dos/Win file attributes
83//
84enum wxZipAttributes
85{
86 wxZIP_A_RDONLY = 0x01,
87 wxZIP_A_HIDDEN = 0x02,
88 wxZIP_A_SYSTEM = 0x04,
89 wxZIP_A_SUBDIR = 0x10,
90 wxZIP_A_ARCH = 0x20,
91
92 wxZIP_A_MASK = 0x37
93};
94
95// Values for the flags field in the zip headers
96//
97enum wxZipFlags
98{
99 wxZIP_ENCRYPTED = 0x0001,
100 wxZIP_DEFLATE_NORMAL = 0x0000, // normal compression
101 wxZIP_DEFLATE_EXTRA = 0x0002, // extra compression
102 wxZIP_DEFLATE_FAST = 0x0004, // fast compression
103 wxZIP_DEFLATE_SUPERFAST = 0x0006, // superfast compression
104 wxZIP_DEFLATE_MASK = 0x0006,
105 wxZIP_SUMS_FOLLOW = 0x0008, // crc and sizes come after the data
106 wxZIP_ENHANCED = 0x0010,
107 wxZIP_PATCH = 0x0020,
108 wxZIP_STRONG_ENC = 0x0040,
109 wxZIP_UNUSED = 0x0F80,
110 wxZIP_RESERVED = 0xF000
111};
112
113// Forward decls
114//
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115class WXDLLIMPEXP_FWD_BASE wxZipEntry;
116class WXDLLIMPEXP_FWD_BASE wxZipInputStream;
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117
118
119/////////////////////////////////////////////////////////////////////////////
120// wxZipNotifier
5526e819 121
00375592 122class WXDLLIMPEXP_BASE wxZipNotifier
5526e819 123{
f6bcfd97 124public:
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125 virtual ~wxZipNotifier() { }
126
127 virtual void OnEntryUpdated(wxZipEntry& entry) = 0;
128};
129
130
131/////////////////////////////////////////////////////////////////////////////
132// Zip Entry - holds the meta data for a file in the zip
133
134class WXDLLIMPEXP_BASE wxZipEntry : public wxArchiveEntry
135{
136public:
137 wxZipEntry(const wxString& name = wxEmptyString,
138 const wxDateTime& dt = wxDateTime::Now(),
139 wxFileOffset size = wxInvalidOffset);
140 virtual ~wxZipEntry();
141
142 wxZipEntry(const wxZipEntry& entry);
143 wxZipEntry& operator=(const wxZipEntry& entry);
144
145 // Get accessors
146 wxDateTime GetDateTime() const { return m_DateTime; }
147 wxFileOffset GetSize() const { return m_Size; }
148 wxFileOffset GetOffset() const { return m_Offset; }
149 wxString GetInternalName() const { return m_Name; }
150 int GetMethod() const { return m_Method; }
151 int GetFlags() const { return m_Flags; }
152 wxUint32 GetCrc() const { return m_Crc; }
153 wxFileOffset GetCompressedSize() const { return m_CompressedSize; }
154 int GetSystemMadeBy() const { return m_SystemMadeBy; }
155 wxString GetComment() const { return m_Comment; }
156 wxUint32 GetExternalAttributes() const { return m_ExternalAttributes; }
157 wxPathFormat GetInternalFormat() const { return wxPATH_UNIX; }
158 int GetMode() const;
159 const char *GetLocalExtra() const;
160 size_t GetLocalExtraLen() const;
161 const char *GetExtra() const;
162 size_t GetExtraLen() const;
163 wxString GetName(wxPathFormat format = wxPATH_NATIVE) const;
164
165 // is accessors
166 inline bool IsDir() const;
167 inline bool IsText() const;
168 inline bool IsReadOnly() const;
169 inline bool IsMadeByUnix() const;
170
171 // set accessors
172 void SetDateTime(const wxDateTime& dt) { m_DateTime = dt; }
173 void SetSize(wxFileOffset size) { m_Size = size; }
ceefc965 174 void SetMethod(int method) { m_Method = (wxUint16)method; }
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175 void SetComment(const wxString& comment) { m_Comment = comment; }
176 void SetExternalAttributes(wxUint32 attr ) { m_ExternalAttributes = attr; }
177 void SetSystemMadeBy(int system);
178 void SetMode(int mode);
179 void SetExtra(const char *extra, size_t len);
180 void SetLocalExtra(const char *extra, size_t len);
181
182 inline void SetName(const wxString& name,
183 wxPathFormat format = wxPATH_NATIVE);
184
185 static wxString GetInternalName(const wxString& name,
186 wxPathFormat format = wxPATH_NATIVE,
187 bool *pIsDir = NULL);
188
189 // set is accessors
190 void SetIsDir(bool isDir = true);
191 inline void SetIsReadOnly(bool isReadOnly = true);
192 inline void SetIsText(bool isText = true);
f6bcfd97 193
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194 wxZipEntry *Clone() const { return ZipClone(); }
195
196 void SetNotifier(wxZipNotifier& notifier);
197 void UnsetNotifier();
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198
199protected:
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200 // Internal attributes
201 enum { TEXT_ATTR = 1 };
202
203 // protected Get accessors
204 int GetVersionNeeded() const { return m_VersionNeeded; }
205 wxFileOffset GetKey() const { return m_Key; }
206 int GetVersionMadeBy() const { return m_VersionMadeBy; }
207 int GetDiskStart() const { return m_DiskStart; }
208 int GetInternalAttributes() const { return m_InternalAttributes; }
209
ceefc965 210 void SetVersionNeeded(int version) { m_VersionNeeded = (wxUint16)version; }
00375592 211 void SetOffset(wxFileOffset offset) { m_Offset = offset; }
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212 void SetFlags(int flags) { m_Flags = (wxUint16)flags; }
213 void SetVersionMadeBy(int version) { m_VersionMadeBy = (wxUint8)version; }
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214 void SetCrc(wxUint32 crc) { m_Crc = crc; }
215 void SetCompressedSize(wxFileOffset size) { m_CompressedSize = size; }
216 void SetKey(wxFileOffset offset) { m_Key = offset; }
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217 void SetDiskStart(int start) { m_DiskStart = (wxUint16)start; }
218 void SetInternalAttributes(int attr) { m_InternalAttributes = (wxUint16)attr; }
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219
220 virtual wxZipEntry *ZipClone() const { return new wxZipEntry(*this); }
221
222 void Notify();
f6bcfd97 223
e3a10e0c 224private:
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225 wxArchiveEntry* DoClone() const { return ZipClone(); }
226
227 size_t ReadLocal(wxInputStream& stream, wxMBConv& conv);
228 size_t WriteLocal(wxOutputStream& stream, wxMBConv& conv) const;
229
230 size_t ReadCentral(wxInputStream& stream, wxMBConv& conv);
231 size_t WriteCentral(wxOutputStream& stream, wxMBConv& conv) const;
232
233 size_t ReadDescriptor(wxInputStream& stream);
234 size_t WriteDescriptor(wxOutputStream& stream, wxUint32 crc,
235 wxFileOffset compressedSize, wxFileOffset size);
236
237 wxUint8 m_SystemMadeBy; // one of enum wxZipSystem
238 wxUint8 m_VersionMadeBy; // major * 10 + minor
239
240 wxUint16 m_VersionNeeded; // ver needed to extract (20 i.e. v2.0)
241 wxUint16 m_Flags;
242 wxUint16 m_Method; // compression method (one of wxZipMethod)
243 wxDateTime m_DateTime;
244 wxUint32 m_Crc;
245 wxFileOffset m_CompressedSize;
588066b7 246 wxFileOffset m_Size;
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247 wxString m_Name; // in internal format
248 wxFileOffset m_Key; // the original offset for copied entries
249 wxFileOffset m_Offset; // file offset of the entry
250
251 wxString m_Comment;
252 wxUint16 m_DiskStart; // for multidisk archives, not unsupported
253 wxUint16 m_InternalAttributes; // bit 0 set for text files
254 wxUint32 m_ExternalAttributes; // system specific depends on SystemMadeBy
255
256 class wxZipMemory *m_Extra;
257 class wxZipMemory *m_LocalExtra;
258
259 wxZipNotifier *m_zipnotifier;
260 class wxZipWeakLinks *m_backlink;
f6bcfd97 261
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262 friend class wxZipInputStream;
263 friend class wxZipOutputStream;
264
265 DECLARE_DYNAMIC_CLASS(wxZipEntry)
266};
267
268
269/////////////////////////////////////////////////////////////////////////////
ce7208d4 270// wxZipOutputStream
00375592 271
8fc574b4 272WX_DECLARE_LIST_WITH_DECL(wxZipEntry, wxZipEntryList_, class WXDLLIMPEXP_BASE);
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273
274class WXDLLIMPEXP_BASE wxZipOutputStream : public wxArchiveOutputStream
275{
276public:
277 wxZipOutputStream(wxOutputStream& stream,
278 int level = -1,
279 wxMBConv& conv = wxConvLocal);
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280 wxZipOutputStream(wxOutputStream *stream,
281 int level = -1,
282 wxMBConv& conv = wxConvLocal);
fe47da7b 283 virtual WXZIPFIX ~wxZipOutputStream();
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284
285 bool PutNextEntry(wxZipEntry *entry) { return DoCreate(entry); }
286
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287 bool WXZIPFIX PutNextEntry(const wxString& name,
288 const wxDateTime& dt = wxDateTime::Now(),
289 wxFileOffset size = wxInvalidOffset);
00375592 290
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291 bool WXZIPFIX PutNextDirEntry(const wxString& name,
292 const wxDateTime& dt = wxDateTime::Now());
00375592 293
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294 bool WXZIPFIX CopyEntry(wxZipEntry *entry, wxZipInputStream& inputStream);
295 bool WXZIPFIX CopyArchiveMetaData(wxZipInputStream& inputStream);
00375592 296
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297 void WXZIPFIX Sync();
298 bool WXZIPFIX CloseEntry();
299 bool WXZIPFIX Close();
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300
301 void SetComment(const wxString& comment) { m_Comment = comment; }
302
303 int GetLevel() const { return m_level; }
fe47da7b 304 void WXZIPFIX SetLevel(int level);
ce7208d4 305
00375592 306protected:
fe47da7b 307 virtual size_t WXZIPFIX OnSysWrite(const void *buffer, size_t size);
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308 virtual wxFileOffset OnSysTell() const { return m_entrySize; }
309
fe47da7b 310 // this protected interface isn't yet finalised
00375592 311 struct Buffer { const char *m_data; size_t m_size; };
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312 virtual wxOutputStream* WXZIPFIX OpenCompressor(wxOutputStream& stream,
313 wxZipEntry& entry,
314 const Buffer bufs[]);
315 virtual bool WXZIPFIX CloseCompressor(wxOutputStream *comp);
00375592 316
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317 bool IsParentSeekable() const
318 { return m_offsetAdjustment != wxInvalidOffset; }
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319
320private:
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321 void Init(int level);
322
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323 bool WXZIPFIX PutNextEntry(wxArchiveEntry *entry);
324 bool WXZIPFIX CopyEntry(wxArchiveEntry *entry, wxArchiveInputStream& stream);
325 bool WXZIPFIX CopyArchiveMetaData(wxArchiveInputStream& stream);
326
fe47da7b 327 bool IsOpened() const { return m_comp || m_pending; }
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328
329 bool DoCreate(wxZipEntry *entry, bool raw = false);
330 void CreatePendingEntry(const void *buffer, size_t size);
331 void CreatePendingEntry();
332
333 class wxStoredOutputStream *m_store;
334 class wxZlibOutputStream2 *m_deflate;
335 class wxZipStreamLink *m_backlink;
8fc574b4 336 wxZipEntryList_ m_entries;
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337 char *m_initialData;
338 size_t m_initialSize;
339 wxZipEntry *m_pending;
340 bool m_raw;
341 wxFileOffset m_headerOffset;
342 size_t m_headerSize;
343 wxFileOffset m_entrySize;
344 wxUint32 m_crcAccumulator;
345 wxOutputStream *m_comp;
346 int m_level;
347 wxFileOffset m_offsetAdjustment;
348 wxString m_Comment;
dd0af4bb 349 bool m_endrecWritten;
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350
351 DECLARE_NO_COPY_CLASS(wxZipOutputStream)
352};
353
354
355/////////////////////////////////////////////////////////////////////////////
ce7208d4 356// wxZipInputStream
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357
358class WXDLLIMPEXP_BASE wxZipInputStream : public wxArchiveInputStream
359{
360public:
361 typedef wxZipEntry entry_type;
362
363 wxZipInputStream(wxInputStream& stream, wxMBConv& conv = wxConvLocal);
8fc574b4 364 wxZipInputStream(wxInputStream *stream, wxMBConv& conv = wxConvLocal);
d13a08ab 365
8fc574b4 366#if WXWIN_COMPATIBILITY_2_6 && wxUSE_FFILE
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367 wxZipInputStream(const wxString& archive, const wxString& file)
368 : wxArchiveInputStream(OpenFile(archive), wxConvLocal) { Init(file); }
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369#endif
370
fe47da7b 371 virtual WXZIPFIX ~wxZipInputStream();
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372
373 bool OpenEntry(wxZipEntry& entry) { return DoOpen(&entry); }
fe47da7b 374 bool WXZIPFIX CloseEntry();
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375
376 wxZipEntry *GetNextEntry();
377
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378 wxString WXZIPFIX GetComment();
379 int WXZIPFIX GetTotalEntries();
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380
381 virtual wxFileOffset GetLength() const { return m_entry.GetSize(); }
382
383protected:
fe47da7b 384 size_t WXZIPFIX OnSysRead(void *buffer, size_t size);
00375592 385 wxFileOffset OnSysTell() const { return m_decomp ? m_decomp->TellI() : 0; }
d13a08ab 386
0441868f 387#if WXWIN_COMPATIBILITY_2_6
fe47da7b 388 wxFileOffset WXZIPFIX OnSysSeek(wxFileOffset seek, wxSeekMode mode);
d13a08ab 389#endif
00375592 390
d13a08ab 391 // this protected interface isn't yet finalised
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392 virtual wxInputStream* WXZIPFIX OpenDecompressor(wxInputStream& stream);
393 virtual bool WXZIPFIX CloseDecompressor(wxInputStream *decomp);
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394
395private:
396 void Init();
fe47da7b 397 void Init(const wxString& file);
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398#if WXWIN_COMPATIBILITY_2_6 && wxUSE_FFILE
399 static wxInputStream *OpenFile(const wxString& archive);
400#endif
00375592 401
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402 wxArchiveEntry *DoGetNextEntry() { return GetNextEntry(); }
403
404 bool WXZIPFIX OpenEntry(wxArchiveEntry& entry);
405
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406 wxStreamError ReadLocal(bool readEndRec = false);
407 wxStreamError ReadCentral();
408
409 wxUint32 ReadSignature();
410 bool FindEndRecord();
411 bool LoadEndRecord();
ce7208d4 412
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413 bool AtHeader() const { return m_headerSize == 0; }
414 bool AfterHeader() const { return m_headerSize > 0 && !m_decomp; }
415 bool IsOpened() const { return m_decomp != NULL; }
416
417 wxZipStreamLink *MakeLink(wxZipOutputStream *out);
418
419 bool DoOpen(wxZipEntry *entry = NULL, bool raw = false);
420 bool OpenDecompressor(bool raw = false);
421
422 class wxStoredInputStream *m_store;
423 class wxZlibInputStream2 *m_inflate;
424 class wxRawInputStream *m_rawin;
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425 wxZipEntry m_entry;
426 bool m_raw;
427 size_t m_headerSize;
428 wxUint32 m_crcAccumulator;
429 wxInputStream *m_decomp;
430 bool m_parentSeekable;
431 class wxZipWeakLinks *m_weaklinks;
432 class wxZipStreamLink *m_streamlink;
433 wxFileOffset m_offsetAdjustment;
434 wxFileOffset m_position;
435 wxUint32 m_signature;
436 size_t m_TotalEntries;
437 wxString m_Comment;
438
439 friend bool wxZipOutputStream::CopyEntry(
440 wxZipEntry *entry, wxZipInputStream& inputStream);
441 friend bool wxZipOutputStream::CopyArchiveMetaData(
442 wxZipInputStream& inputStream);
22f3361e 443
5c80cef4 444#if WXWIN_COMPATIBILITY_2_6
d13a08ab 445 bool m_allowSeeking;
5c80cef4 446 friend class wxArchiveFSHandler;
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447#endif
448
22f3361e 449 DECLARE_NO_COPY_CLASS(wxZipInputStream)
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450};
451
452
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453/////////////////////////////////////////////////////////////////////////////
454// Iterators
455
456#if wxUSE_STL || defined WX_TEST_ARCHIVE_ITERATOR
457typedef wxArchiveIterator<wxZipInputStream> wxZipIter;
458typedef wxArchiveIterator<wxZipInputStream,
459 std::pair<wxString, wxZipEntry*> > wxZipPairIter;
460#endif
461
462
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463/////////////////////////////////////////////////////////////////////////////
464// wxZipClassFactory
5526e819 465
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466class WXDLLIMPEXP_BASE wxZipClassFactory : public wxArchiveClassFactory
467{
468public:
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469 typedef wxZipEntry entry_type;
470 typedef wxZipInputStream instream_type;
471 typedef wxZipOutputStream outstream_type;
472 typedef wxZipNotifier notifier_type;
473#if wxUSE_STL || defined WX_TEST_ARCHIVE_ITERATOR
474 typedef wxZipIter iter_type;
475 typedef wxZipPairIter pairiter_type;
476#endif
477
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478 wxZipClassFactory();
479
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480 wxZipEntry *NewEntry() const
481 { return new wxZipEntry; }
482 wxZipInputStream *NewStream(wxInputStream& stream) const
483 { return new wxZipInputStream(stream, GetConv()); }
484 wxZipOutputStream *NewStream(wxOutputStream& stream) const
485 { return new wxZipOutputStream(stream, -1, GetConv()); }
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486 wxZipInputStream *NewStream(wxInputStream *stream) const
487 { return new wxZipInputStream(stream, GetConv()); }
488 wxZipOutputStream *NewStream(wxOutputStream *stream) const
489 { return new wxZipOutputStream(stream, -1, GetConv()); }
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490
491 wxString GetInternalName(const wxString& name,
492 wxPathFormat format = wxPATH_NATIVE) const
493 { return wxZipEntry::GetInternalName(name, format); }
494
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495 const wxChar * const *GetProtocols(wxStreamProtocolType type
496 = wxSTREAM_PROTOCOL) const;
497
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498protected:
499 wxArchiveEntry *DoNewEntry() const
500 { return NewEntry(); }
501 wxArchiveInputStream *DoNewStream(wxInputStream& stream) const
502 { return NewStream(stream); }
503 wxArchiveOutputStream *DoNewStream(wxOutputStream& stream) const
504 { return NewStream(stream); }
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505 wxArchiveInputStream *DoNewStream(wxInputStream *stream) const
506 { return NewStream(stream); }
507 wxArchiveOutputStream *DoNewStream(wxOutputStream *stream) const
508 { return NewStream(stream); }
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509
510private:
511 DECLARE_DYNAMIC_CLASS(wxZipClassFactory)
512};
513
514
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515/////////////////////////////////////////////////////////////////////////////
516// wxZipEntry inlines
517
f44eaed6 518inline bool wxZipEntry::IsText() const
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519{
520 return (m_InternalAttributes & TEXT_ATTR) != 0;
521}
522
f44eaed6 523inline bool wxZipEntry::IsDir() const
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524{
525 return (m_ExternalAttributes & wxZIP_A_SUBDIR) != 0;
526}
527
f44eaed6 528inline bool wxZipEntry::IsReadOnly() const
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529{
530 return (m_ExternalAttributes & wxZIP_A_RDONLY) != 0;
531}
532
f44eaed6 533inline bool wxZipEntry::IsMadeByUnix() const
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534{
535 const int pattern =
536 (1 << wxZIP_SYSTEM_OPENVMS) |
537 (1 << wxZIP_SYSTEM_UNIX) |
538 (1 << wxZIP_SYSTEM_ATARI_ST) |
539 (1 << wxZIP_SYSTEM_ACORN_RISC) |
540 (1 << wxZIP_SYSTEM_BEOS) | (1 << wxZIP_SYSTEM_TANDEM);
541
542 // note: some unix zippers put madeby = dos
543 return (m_SystemMadeBy == wxZIP_SYSTEM_MSDOS
544 && (m_ExternalAttributes & ~0xFFFF))
545 || ((pattern >> m_SystemMadeBy) & 1);
546}
547
f44eaed6 548inline void wxZipEntry::SetIsText(bool isText)
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549{
550 if (isText)
551 m_InternalAttributes |= TEXT_ATTR;
552 else
553 m_InternalAttributes &= ~TEXT_ATTR;
554}
555
f44eaed6 556inline void wxZipEntry::SetIsReadOnly(bool isReadOnly)
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557{
558 if (isReadOnly)
559 SetMode(GetMode() & ~0222);
560 else
561 SetMode(GetMode() | 0200);
562}
563
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564inline void wxZipEntry::SetName(const wxString& name,
565 wxPathFormat format /*=wxPATH_NATIVE*/)
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566{
567 bool isDir;
568 m_Name = GetInternalName(name, format, &isDir);
569 SetIsDir(isDir);
570}
571
572
5410f572 573#endif // wxUSE_ZIPSTREAM
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574
575#endif // _WX_WXZIPSTREAM_H__