/////////////////////////////////////////////////////////////////////////////
-// Name: zipstream.h
-// Purpose: wxZipInputStream for reading files from ZIP archive
-// Author: Vaclav Slavik
-// Copyright: (c) 1999 Vaclav Slavik
-// Licence: wxWidgets licence
+// Name: zipstrm.h
+// Purpose: Streams for Zip files
+// Author: Mike Wetherell
+// RCS-ID: $Id$
+// Copyright: (c) Mike Wetherell
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifndef __ZIPSTREAM_H__
-#define __ZIPSTREAM_H__
+#ifndef _WX_WXZIPSTREAM_H__
+#define _WX_WXZIPSTREAM_H__
#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma interface "zipstrm.h"
#include "wx/defs.h"
-#if wxUSE_STREAMS && wxUSE_ZIPSTREAM && wxUSE_ZLIB
+#if wxUSE_ZLIB && wxUSE_STREAMS && wxUSE_ZIPSTREAM
-#include "wx/stream.h"
+#include "wx/archive.h"
+#include "wx/hashmap.h"
+#include "wx/filename.h"
-//--------------------------------------------------------------------------------
-// wxZipInputStream
-// This class is input stream from ZIP archive. The archive
-// must be local file (accessible via FILE*)
-//--------------------------------------------------------------------------------
+/////////////////////////////////////////////////////////////////////////////
+// constants
+
+// Compression Method, only 0 (store) and 8 (deflate) are supported here
+//
+enum wxZipMethod
+{
+ wxZIP_METHOD_STORE,
+ wxZIP_METHOD_SHRINK,
+ wxZIP_METHOD_REDUCE1,
+ wxZIP_METHOD_REDUCE2,
+ wxZIP_METHOD_REDUCE3,
+ wxZIP_METHOD_REDUCE4,
+ wxZIP_METHOD_IMPLODE,
+ wxZIP_METHOD_TOKENIZE,
+ wxZIP_METHOD_DEFLATE,
+ wxZIP_METHOD_DEFLATE64,
+ wxZIP_METHOD_BZIP2 = 12,
+ wxZIP_METHOD_DEFAULT = 0xffff
+};
+
+// Originating File-System.
+//
+// These are Pkware's values. Note that Info-zip disagree on some of them,
+// most notably NTFS.
+//
+enum wxZipSystem
+{
+ wxZIP_SYSTEM_MSDOS,
+ wxZIP_SYSTEM_AMIGA,
+ wxZIP_SYSTEM_OPENVMS,
+ wxZIP_SYSTEM_UNIX,
+ wxZIP_SYSTEM_VM_CMS,
+ wxZIP_SYSTEM_ATARI_ST,
+ wxZIP_SYSTEM_OS2_HPFS,
+ wxZIP_SYSTEM_MACINTOSH,
+ wxZIP_SYSTEM_Z_SYSTEM,
+ wxZIP_SYSTEM_CPM,
+ wxZIP_SYSTEM_WINDOWS_NTFS,
+ wxZIP_SYSTEM_MVS,
+ wxZIP_SYSTEM_VSE,
+ wxZIP_SYSTEM_ACORN_RISC,
+ wxZIP_SYSTEM_VFAT,
+ wxZIP_SYSTEM_ALTERNATE_MVS,
+ wxZIP_SYSTEM_BEOS,
+ wxZIP_SYSTEM_TANDEM,
+ wxZIP_SYSTEM_OS_400
+};
+
+// Dos/Win file attributes
+//
+enum wxZipAttributes
+{
+ wxZIP_A_RDONLY = 0x01,
+ wxZIP_A_HIDDEN = 0x02,
+ wxZIP_A_SYSTEM = 0x04,
+ wxZIP_A_SUBDIR = 0x10,
+ wxZIP_A_ARCH = 0x20,
+
+ wxZIP_A_MASK = 0x37
+};
+
+// Values for the flags field in the zip headers
+//
+enum wxZipFlags
+{
+ wxZIP_ENCRYPTED = 0x0001,
+ wxZIP_DEFLATE_NORMAL = 0x0000, // normal compression
+ wxZIP_DEFLATE_EXTRA = 0x0002, // extra compression
+ wxZIP_DEFLATE_FAST = 0x0004, // fast compression
+ wxZIP_DEFLATE_SUPERFAST = 0x0006, // superfast compression
+ wxZIP_DEFLATE_MASK = 0x0006,
+ wxZIP_SUMS_FOLLOW = 0x0008, // crc and sizes come after the data
+ wxZIP_ENHANCED = 0x0010,
+ wxZIP_PATCH = 0x0020,
+ wxZIP_STRONG_ENC = 0x0040,
+ wxZIP_UNUSED = 0x0F80,
+ wxZIP_RESERVED = 0xF000
+};
+
+// Forward decls
+//
+class WXDLLIMPEXP_BASE wxZipEntry;
+class WXDLLIMPEXP_BASE wxZipInputStream;
+
+
+/////////////////////////////////////////////////////////////////////////////
+// wxZipNotifier
+
+class WXDLLIMPEXP_BASE wxZipNotifier
+{
+public:
+ virtual ~wxZipNotifier() { }
+
+ virtual void OnEntryUpdated(wxZipEntry& entry) = 0;
+};
+
+
+/////////////////////////////////////////////////////////////////////////////
+// Zip Entry - holds the meta data for a file in the zip
+
+class WXDLLIMPEXP_BASE wxZipEntry : public wxArchiveEntry
+{
+public:
+ wxZipEntry(const wxString& name = wxEmptyString,
+ const wxDateTime& dt = wxDateTime::Now(),
+ wxFileOffset size = wxInvalidOffset);
+ virtual ~wxZipEntry();
+
+ wxZipEntry(const wxZipEntry& entry);
+ wxZipEntry& operator=(const wxZipEntry& entry);
+
+ // Get accessors
+ wxDateTime GetDateTime() const { return m_DateTime; }
+ wxFileOffset GetSize() const { return m_Size; }
+ wxFileOffset GetOffset() const { return m_Offset; }
+ wxString GetInternalName() const { return m_Name; }
+ int GetMethod() const { return m_Method; }
+ int GetFlags() const { return m_Flags; }
+ wxUint32 GetCrc() const { return m_Crc; }
+ wxFileOffset GetCompressedSize() const { return m_CompressedSize; }
+ int GetSystemMadeBy() const { return m_SystemMadeBy; }
+ wxString GetComment() const { return m_Comment; }
+ wxUint32 GetExternalAttributes() const { return m_ExternalAttributes; }
+ wxPathFormat GetInternalFormat() const { return wxPATH_UNIX; }
+ int GetMode() const;
+ const char *GetLocalExtra() const;
+ size_t GetLocalExtraLen() const;
+ const char *GetExtra() const;
+ size_t GetExtraLen() const;
+ wxString GetName(wxPathFormat format = wxPATH_NATIVE) const;
+
+ // is accessors
+ inline bool IsDir() const;
+ inline bool IsText() const;
+ inline bool IsReadOnly() const;
+ inline bool IsMadeByUnix() const;
+
+ // set accessors
+ void SetDateTime(const wxDateTime& dt) { m_DateTime = dt; }
+ void SetSize(wxFileOffset size) { m_Size = size; }
+ void SetMethod(int method) { m_Method = (wxUint16)method; }
+ void SetComment(const wxString& comment) { m_Comment = comment; }
+ void SetExternalAttributes(wxUint32 attr ) { m_ExternalAttributes = attr; }
+ void SetSystemMadeBy(int system);
+ void SetMode(int mode);
+ void SetExtra(const char *extra, size_t len);
+ void SetLocalExtra(const char *extra, size_t len);
-class WXDLLIMPEXP_BASE wxZipInputStream : public wxInputStream
+ inline void SetName(const wxString& name,
+ wxPathFormat format = wxPATH_NATIVE);
+
+ static wxString GetInternalName(const wxString& name,
+ wxPathFormat format = wxPATH_NATIVE,
+ bool *pIsDir = NULL);
+
+ // set is accessors
+ void SetIsDir(bool isDir = true);
+ inline void SetIsReadOnly(bool isReadOnly = true);
+ inline void SetIsText(bool isText = true);
+
+ wxZipEntry *Clone() const { return ZipClone(); }
+
+ void SetNotifier(wxZipNotifier& notifier);
+ void UnsetNotifier();
+
+protected:
+ // Internal attributes
+ enum { TEXT_ATTR = 1 };
+
+ // protected Get accessors
+ int GetVersionNeeded() const { return m_VersionNeeded; }
+ wxFileOffset GetKey() const { return m_Key; }
+ int GetVersionMadeBy() const { return m_VersionMadeBy; }
+ int GetDiskStart() const { return m_DiskStart; }
+ int GetInternalAttributes() const { return m_InternalAttributes; }
+
+ void SetVersionNeeded(int version) { m_VersionNeeded = (wxUint16)version; }
+ void SetOffset(wxFileOffset offset) { m_Offset = offset; }
+ void SetFlags(int flags) { m_Flags = (wxUint16)flags; }
+ void SetVersionMadeBy(int version) { m_VersionMadeBy = (wxUint8)version; }
+ void SetCrc(wxUint32 crc) { m_Crc = crc; }
+ void SetCompressedSize(wxFileOffset size) { m_CompressedSize = size; }
+ void SetKey(wxFileOffset offset) { m_Key = offset; }
+ void SetDiskStart(int start) { m_DiskStart = (wxUint16)start; }
+ void SetInternalAttributes(int attr) { m_InternalAttributes = (wxUint16)attr; }
+
+ virtual wxZipEntry *ZipClone() const { return new wxZipEntry(*this); }
+
+ void Notify();
+
+private:
+ wxArchiveEntry* DoClone() const { return ZipClone(); }
+
+ size_t ReadLocal(wxInputStream& stream, wxMBConv& conv);
+ size_t WriteLocal(wxOutputStream& stream, wxMBConv& conv) const;
+
+ size_t ReadCentral(wxInputStream& stream, wxMBConv& conv);
+ size_t WriteCentral(wxOutputStream& stream, wxMBConv& conv) const;
+
+ size_t ReadDescriptor(wxInputStream& stream);
+ size_t WriteDescriptor(wxOutputStream& stream, wxUint32 crc,
+ wxFileOffset compressedSize, wxFileOffset size);
+
+ wxUint8 m_SystemMadeBy; // one of enum wxZipSystem
+ wxUint8 m_VersionMadeBy; // major * 10 + minor
+
+ wxUint16 m_VersionNeeded; // ver needed to extract (20 i.e. v2.0)
+ wxUint16 m_Flags;
+ wxUint16 m_Method; // compression method (one of wxZipMethod)
+ wxDateTime m_DateTime;
+ wxUint32 m_Crc;
+ wxFileOffset m_CompressedSize;
+ wxFileOffset m_Size;
+ wxString m_Name; // in internal format
+ wxFileOffset m_Key; // the original offset for copied entries
+ wxFileOffset m_Offset; // file offset of the entry
+
+ wxString m_Comment;
+ wxUint16 m_DiskStart; // for multidisk archives, not unsupported
+ wxUint16 m_InternalAttributes; // bit 0 set for text files
+ wxUint32 m_ExternalAttributes; // system specific depends on SystemMadeBy
+
+ class wxZipMemory *m_Extra;
+ class wxZipMemory *m_LocalExtra;
+
+ wxZipNotifier *m_zipnotifier;
+ class wxZipWeakLinks *m_backlink;
+
+ friend class wxZipInputStream;
+ friend class wxZipOutputStream;
+
+ DECLARE_DYNAMIC_CLASS(wxZipEntry)
+};
+
+
+/////////////////////////////////////////////////////////////////////////////
+// wxZipOutputStream
+
+WX_DECLARE_LIST_WITH_DECL(wxZipEntry, _wxZipEntryList, class WXDLLIMPEXP_BASE);
+
+class WXDLLIMPEXP_BASE wxZipOutputStream : public wxArchiveOutputStream
{
public:
+ wxZipOutputStream(wxOutputStream& stream,
+ int level = -1,
+ wxMBConv& conv = wxConvLocal);
+ virtual ~wxZipOutputStream();
+
+ bool PutNextEntry(wxZipEntry *entry) { return DoCreate(entry); }
+
+ bool PutNextEntry(const wxString& name,
+ const wxDateTime& dt = wxDateTime::Now(),
+ wxFileOffset size = wxInvalidOffset);
+
+ bool PutNextDirEntry(const wxString& name,
+ const wxDateTime& dt = wxDateTime::Now());
+
+ bool CopyEntry(wxZipEntry *entry, wxZipInputStream& inputStream);
+ bool CopyArchiveMetaData(wxZipInputStream& inputStream);
+
+ void Sync();
+ bool CloseEntry();
+ bool Close();
+
+ void SetComment(const wxString& comment) { m_Comment = comment; }
+
+ int GetLevel() const { return m_level; }
+ void SetLevel(int level);
+
+protected:
+ virtual size_t OnSysWrite(const void *buffer, size_t size);
+ virtual wxFileOffset OnSysTell() const { return m_entrySize; }
+
+ struct Buffer { const char *m_data; size_t m_size; };
+ virtual wxOutputStream *OpenCompressor(wxOutputStream& stream,
+ wxZipEntry& entry,
+ const Buffer bufs[]);
+ virtual bool CloseCompressor(wxOutputStream *comp);
+
+ bool IsParentSeekable() const { return m_offsetAdjustment
+ != wxInvalidOffset; }
+
+private:
+ bool PutNextEntry(wxArchiveEntry *entry);
+ bool CopyEntry(wxArchiveEntry *entry, wxArchiveInputStream& stream);
+ bool CopyArchiveMetaData(wxArchiveInputStream& stream);
+
+ bool IsOpened() const { return m_comp || m_pending; }
+
+ bool DoCreate(wxZipEntry *entry, bool raw = false);
+ void CreatePendingEntry(const void *buffer, size_t size);
+ void CreatePendingEntry();
+
+ class wxStoredOutputStream *m_store;
+ class wxZlibOutputStream2 *m_deflate;
+ class wxZipStreamLink *m_backlink;
+ _wxZipEntryList m_entries;
+ char *m_initialData;
+ size_t m_initialSize;
+ wxZipEntry *m_pending;
+ bool m_raw;
+ wxFileOffset m_headerOffset;
+ size_t m_headerSize;
+ wxFileOffset m_entrySize;
+ wxUint32 m_crcAccumulator;
+ wxOutputStream *m_comp;
+ int m_level;
+ wxFileOffset m_offsetAdjustment;
+ wxString m_Comment;
+
+ DECLARE_NO_COPY_CLASS(wxZipOutputStream)
+};
+
+
+/////////////////////////////////////////////////////////////////////////////
+// wxZipInputStream
+
+class WXDLLIMPEXP_BASE wxZipInputStream : public wxArchiveInputStream
+{
+public:
+ typedef wxZipEntry entry_type;
+
+ wxZipInputStream(wxInputStream& stream, wxMBConv& conv = wxConvLocal);
wxZipInputStream(const wxString& archive, const wxString& file);
- // archive is name of .zip archive, file is name of file to be extracted.
- // Remember that archive must be local file accesible via fopen, fread functions!
- ~wxZipInputStream();
+ virtual ~wxZipInputStream();
+
+ bool OpenEntry(wxZipEntry& entry) { return DoOpen(&entry); }
+ bool CloseEntry();
+
+ wxZipEntry *GetNextEntry();
- virtual size_t GetSize() const {return m_Size;}
- virtual bool Eof() const;
+ wxString GetComment();
+ int GetTotalEntries();
+
+ virtual wxFileOffset GetLength() const { return m_entry.GetSize(); }
protected:
- virtual size_t OnSysRead(void *buffer, size_t bufsize);
- virtual off_t OnSysSeek(off_t seek, wxSeekMode mode);
- virtual off_t OnSysTell() const {return m_Pos;}
+ size_t OnSysRead(void *buffer, size_t size);
+ wxFileOffset OnSysTell() const { return m_decomp ? m_decomp->TellI() : 0; }
+ wxFileOffset OnSysSeek(wxFileOffset seek, wxSeekMode mode);
+
+ virtual wxInputStream *OpenDecompressor(wxInputStream& stream);
+ virtual bool CloseDecompressor(wxInputStream *decomp);
private:
- size_t m_Size;
- off_t m_Pos;
+ void Init();
+ wxInputStream& OpenFile(const wxString& archive);
+
+ wxArchiveEntry *DoGetNextEntry() { return GetNextEntry(); }
+
+ bool OpenEntry(wxArchiveEntry& entry);
- // this void* is handle of archive . I'm sorry it is void and not proper
- // type but I don't want to make unzip.h header public.
- void *m_Archive;
+ wxStreamError ReadLocal(bool readEndRec = false);
+ wxStreamError ReadCentral();
+
+ wxUint32 ReadSignature();
+ bool FindEndRecord();
+ bool LoadEndRecord();
+
+ bool AtHeader() const { return m_headerSize == 0; }
+ bool AfterHeader() const { return m_headerSize > 0 && !m_decomp; }
+ bool IsOpened() const { return m_decomp != NULL; }
+
+ wxZipStreamLink *MakeLink(wxZipOutputStream *out);
+
+ bool DoOpen(wxZipEntry *entry = NULL, bool raw = false);
+ bool OpenDecompressor(bool raw = false);
+
+ class wxStoredInputStream *m_store;
+ class wxZlibInputStream2 *m_inflate;
+ class wxRawInputStream *m_rawin;
+ class wxFFileInputStream *m_ffile;
+ wxZipEntry m_entry;
+ bool m_raw;
+ size_t m_headerSize;
+ wxUint32 m_crcAccumulator;
+ wxInputStream *m_decomp;
+ bool m_parentSeekable;
+ class wxZipWeakLinks *m_weaklinks;
+ class wxZipStreamLink *m_streamlink;
+ wxFileOffset m_offsetAdjustment;
+ wxFileOffset m_position;
+ wxUint32 m_signature;
+ size_t m_TotalEntries;
+ wxString m_Comment;
+
+ friend bool wxZipOutputStream::CopyEntry(
+ wxZipEntry *entry, wxZipInputStream& inputStream);
+ friend bool wxZipOutputStream::CopyArchiveMetaData(
+ wxZipInputStream& inputStream);
DECLARE_NO_COPY_CLASS(wxZipInputStream)
};
-#endif
- // wxUSE_STREAMS && wxUSE_ZIPSTREAM && wxUSE_ZLIB
+/////////////////////////////////////////////////////////////////////////////
+// wxZipClassFactory
+
+class WXDLLIMPEXP_BASE wxZipClassFactory : public wxArchiveClassFactory
+{
+public:
+ wxZipEntry *NewEntry() const
+ { return new wxZipEntry; }
+ wxZipInputStream *NewStream(wxInputStream& stream) const
+ { return new wxZipInputStream(stream, GetConv()); }
+ wxZipOutputStream *NewStream(wxOutputStream& stream) const
+ { return new wxZipOutputStream(stream, -1, GetConv()); }
+
+ wxString GetInternalName(const wxString& name,
+ wxPathFormat format = wxPATH_NATIVE) const
+ { return wxZipEntry::GetInternalName(name, format); }
+
+protected:
+ wxArchiveEntry *DoNewEntry() const
+ { return NewEntry(); }
+ wxArchiveInputStream *DoNewStream(wxInputStream& stream) const
+ { return NewStream(stream); }
+ wxArchiveOutputStream *DoNewStream(wxOutputStream& stream) const
+ { return NewStream(stream); }
+
+private:
+ DECLARE_DYNAMIC_CLASS(wxZipClassFactory)
+};
+
+
+/////////////////////////////////////////////////////////////////////////////
+// Iterators
+
+#if wxUSE_STL || defined WX_TEST_ARCHIVE_ITERATOR
+typedef wxArchiveIterator<wxZipInputStream> wxZipIter;
+typedef wxArchiveIterator<wxZipInputStream,
+ std::pair<wxString, wxZipEntry*> > wxZipPairIter;
+#endif
+
+
+/////////////////////////////////////////////////////////////////////////////
+// wxZipEntry inlines
+
+bool wxZipEntry::IsText() const
+{
+ return (m_InternalAttributes & TEXT_ATTR) != 0;
+}
+
+bool wxZipEntry::IsDir() const
+{
+ return (m_ExternalAttributes & wxZIP_A_SUBDIR) != 0;
+}
+
+bool wxZipEntry::IsReadOnly() const
+{
+ return (m_ExternalAttributes & wxZIP_A_RDONLY) != 0;
+}
+
+bool wxZipEntry::IsMadeByUnix() const
+{
+ const int pattern =
+ (1 << wxZIP_SYSTEM_OPENVMS) |
+ (1 << wxZIP_SYSTEM_UNIX) |
+ (1 << wxZIP_SYSTEM_ATARI_ST) |
+ (1 << wxZIP_SYSTEM_ACORN_RISC) |
+ (1 << wxZIP_SYSTEM_BEOS) | (1 << wxZIP_SYSTEM_TANDEM);
+
+ // note: some unix zippers put madeby = dos
+ return (m_SystemMadeBy == wxZIP_SYSTEM_MSDOS
+ && (m_ExternalAttributes & ~0xFFFF))
+ || ((pattern >> m_SystemMadeBy) & 1);
+}
+
+void wxZipEntry::SetIsText(bool isText)
+{
+ if (isText)
+ m_InternalAttributes |= TEXT_ATTR;
+ else
+ m_InternalAttributes &= ~TEXT_ATTR;
+}
+
+void wxZipEntry::SetIsReadOnly(bool isReadOnly)
+{
+ if (isReadOnly)
+ SetMode(GetMode() & ~0222);
+ else
+ SetMode(GetMode() | 0200);
+}
+
+void wxZipEntry::SetName(const wxString& name,
+ wxPathFormat format /*=wxPATH_NATIVE*/)
+{
+ bool isDir;
+ m_Name = GetInternalName(name, format, &isDir);
+ SetIsDir(isDir);
+}
+
+
+#endif // wxUSE_ZLIB && wxUSE_STREAMS && wxUSE_ZIPSTREAM
-#endif
- // __ZIPSTREAM_H__
+#endif // _WX_WXZIPSTREAM_H__
projects / wxWidgets.git / blobdiff