src/common/fs_zip.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        fs_zip.cpp
   3 // Purpose:     ZIP file system
   4 // Author:      Vaclav Slavik
   5 // Copyright:   (c) 1999 Vaclav Slavik
   6 // Licence:     wxWindows Licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9
  10 #ifdef __GNUG__
  11 #pragma implementation
  12 #endif
  13
  14 #include "wx/wxprec.h"
  15
  16 #ifdef __BORDLANDC__
  17 #pragma hdrstop
  18 #endif
  19
  20 #if wxUSE_FS_ZIP
  21
  22 #ifndef WXPRECOMP
  23 #include "wx/wx.h"
  24 #endif
  25
  26 #include "wx/filesys.h"
  27 #include "wx/zipstrm.h"
  28 #include "wx/fs_zip.h"
  29
  30 /* Not the right solution (paths in makefiles) but... */
  31 #ifdef __BORLANDC__
  32 #include "../common/unzip.h"
  33 #else
  34 #include "unzip.h"
  35 #endif
  36
  37
  38 //--------------------------------------------------------------------------------
  39 // wxZipFSHandler
  40 //--------------------------------------------------------------------------------
  41
  42
  43
  44 wxZipFSHandler::wxZipFSHandler() : wxFileSystemHandler()
  45 {
  46     m_Archive = NULL;
  47     m_ZipFile = m_Pattern = m_BaseDir = wxEmptyString;
  48     m_AllowDirs = m_AllowFiles = TRUE;
  49 }
  50
  51
  52
  53 wxZipFSHandler::~wxZipFSHandler()
  54 {
  55     if (m_Archive)
  56         unzClose((unzFile)m_Archive);
  57 }
  58
  59
  60
  61 bool wxZipFSHandler::CanOpen(const wxString& location)
  62 {
  63     wxString p = GetProtocol(location);
  64     return (p == wxT("zip") );
  65 }
  66
  67
  68
  69
  70 wxFSFile* wxZipFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
  71 {
  72     wxString right = GetRightLocation(location);
  73     wxString left = GetLeftLocation(location);
  74     wxInputStream *s;
  75
  76     if (GetProtocol(left) != wxT("file")) {
  77         return NULL;
  78     }
  79
  80     s = new wxZipInputStream(left, right);
  81     if (s && (s -> LastError() == wxStream_NOERROR)) {
  82         return new wxFSFile(s,
  83                             left + wxT("#zip:") + right,
  84                             GetMimeTypeFromExt(location),
  85                             GetAnchor(location),
  86                             wxDateTime(wxFileModificationTime(left)));
  87     }
  88     else return NULL;
  89 }
  90
  91
  92
  93 wxString wxZipFSHandler::FindFirst(const wxString& spec, int flags)
  94 {
  95     wxString right = GetRightLocation(spec);
  96     wxString left = GetLeftLocation(spec);
  97
  98     if (right.Last() == wxT('/')) right.RemoveLast();
  99
 100     if (m_Archive) {
 101         unzClose((unzFile)m_Archive);
 102         m_Archive = NULL;
 103     }
 104
 105     if (GetProtocol(left) != wxT("file")) {
 106         return wxEmptyString;
 107     }
 108
 109     switch (flags) {
 110         case wxFILE  : m_AllowDirs = FALSE, m_AllowFiles = TRUE; break;
 111         case wxDIR   : m_AllowDirs = TRUE, m_AllowFiles = FALSE; break;
 112         default : m_AllowDirs = m_AllowFiles = TRUE; break;
 113     }
 114
 115     m_ZipFile = left;
 116     m_Archive = (void*) unzOpen(m_ZipFile.fn_str());
 117     m_Pattern = right.AfterLast(wxT('/'));
 118     m_BaseDir = right.BeforeLast(wxT('/'));
 119
 120     if (m_Archive) {
 121         if (unzGoToFirstFile((unzFile)m_Archive) != UNZ_OK) {
 122             unzClose((unzFile)m_Archive);
 123             m_Archive = NULL;
 124         }
 125     }
 126     return DoFind();
 127 }
 128
 129
 130
 131 wxString wxZipFSHandler::FindNext()
 132 {
 133     if (!m_Archive) return wxEmptyString;
 134     return DoFind();
 135 }
 136
 137
 138
 139 wxString wxZipFSHandler::DoFind()
 140 {
 141     static char namebuf[1024]; // char, not wxChar!
 142     char *c;
 143     wxString fn, dir, name;
 144     wxString match = wxEmptyString;
 145     bool wasdir;
 146
 147     while (match == wxEmptyString)
 148     {
 149         unzGetCurrentFileInfo((unzFile)m_Archive, NULL, namebuf, 1024, NULL, 0, NULL, 0);
 150         for (c = namebuf; *c; c++) if (*c == wxT('\\')) *c = wxT('/');
 151         fn = namebuf;
 152         if (fn.Last() == wxT('/')) {
 153             fn.RemoveLast();
 154             wasdir = TRUE;
 155         }
 156         else wasdir = FALSE;
 157
 158         name = fn.AfterLast(wxT('/'));
 159         dir = fn.BeforeLast(wxT('/'));
 160
 161         if (dir == m_BaseDir) {
 162             if (m_AllowFiles && !wasdir && wxMatchWild(m_Pattern, name, FALSE))
 163                 match = m_ZipFile + wxT("#zip:") + fn;
 164             if (m_AllowDirs && wasdir && wxMatchWild(m_Pattern, name, FALSE))
 165                 match = m_ZipFile + wxT("#zip:") + fn;
 166         }
 167
 168         if (unzGoToNextFile((unzFile)m_Archive) != UNZ_OK) {
 169             unzClose((unzFile)m_Archive);
 170             m_Archive = NULL;
 171             break;
 172         }
 173     }
 174
 175     return match;
 176 }
 177
 178
 179
 180 #endif // wxUSE_FS_ZIP