Files
wxWidgets/src/common/fs_zip.cpp
Václav Slavík 14f355c2b5 added support for gcc precompiled headers
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@22723 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2003-08-09 12:46:53 +00:00

244 lines
6.3 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: fs_zip.cpp
// Purpose: ZIP file system
// Author: Vaclav Slavik
// Copyright: (c) 1999 Vaclav Slavik
// CVS-ID: $Id$
// Licence: wxWindows Licence
/////////////////////////////////////////////////////////////////////////////
#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "fs_zip.h"
#endif
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_FILESYSTEM && wxUSE_FS_ZIP && wxUSE_ZIPSTREAM
#ifndef WXPRECOMP
#include "wx/intl.h"
#include "wx/log.h"
#endif
#include "wx/hashmap.h"
#include "wx/filesys.h"
#include "wx/zipstrm.h"
#include "wx/fs_zip.h"
/* Not the right solution (paths in makefiles) but... */
#ifdef __BORLANDC__
#include "../common/unzip.h"
#else
#include "unzip.h"
#endif
WX_DECLARE_HASH_MAP_WITH_DECL( long, long, wxIntegerHash, wxIntegerEqual,
wxLongToLongHashMap, class WXDLLIMPEXP_BASE );
//----------------------------------------------------------------------------
// wxZipFSHandler
//----------------------------------------------------------------------------
wxZipFSHandler::wxZipFSHandler() : wxFileSystemHandler()
{
m_Archive = NULL;
m_ZipFile = m_Pattern = m_BaseDir = wxEmptyString;
m_AllowDirs = m_AllowFiles = TRUE;
m_DirsFound = NULL;
}
wxZipFSHandler::~wxZipFSHandler()
{
if (m_Archive)
unzClose((unzFile)m_Archive);
if (m_DirsFound)
delete m_DirsFound;
}
bool wxZipFSHandler::CanOpen(const wxString& location)
{
wxString p = GetProtocol(location);
return (p == wxT("zip")) &&
(GetProtocol(GetLeftLocation(location)) == wxT("file"));
}
wxFSFile* wxZipFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
{
wxString right = GetRightLocation(location);
wxString left = GetLeftLocation(location);
wxInputStream *s;
if (GetProtocol(left) != wxT("file"))
{
wxLogError(_("ZIP handler currently supports only local files!"));
return NULL;
}
if (right.Contains(wxT("./")))
{
if (right.GetChar(0) != wxT('/')) right = wxT('/') + right;
wxFileName rightPart(right, wxPATH_UNIX);
rightPart.Normalize(wxPATH_NORM_DOTS, wxT("/"), wxPATH_UNIX);
right = rightPart.GetFullPath(wxPATH_UNIX);
}
if (right.GetChar(0) == wxT('/')) right = right.Mid(1);
wxFileName leftFilename = wxFileSystem::URLToFileName(left);
s = new wxZipInputStream(leftFilename.GetFullPath(), right);
if (s && s->IsOk() )
{
return new wxFSFile(s,
left + wxT("#zip:") + right,
GetMimeTypeFromExt(location),
GetAnchor(location)
#if wxUSE_DATETIME
, wxDateTime(wxFileModificationTime(left))
#endif // wxUSE_DATETIME
);
}
delete s;
return NULL;
}
wxString wxZipFSHandler::FindFirst(const wxString& spec, int flags)
{
wxString right = GetRightLocation(spec);
wxString left = GetLeftLocation(spec);
if (right.Last() == wxT('/')) right.RemoveLast();
if (m_Archive)
{
unzClose((unzFile)m_Archive);
m_Archive = NULL;
}
if (GetProtocol(left) != wxT("file"))
{
wxLogError(_("ZIP handler currently supports only local files!"));
return wxEmptyString;
}
switch (flags)
{
case wxFILE:
m_AllowDirs = FALSE, m_AllowFiles = TRUE; break;
case wxDIR:
m_AllowDirs = TRUE, m_AllowFiles = FALSE; break;
default:
m_AllowDirs = m_AllowFiles = TRUE; break;
}
m_ZipFile = left;
wxString nativename = wxFileSystem::URLToFileName(m_ZipFile).GetFullPath();
m_Archive = (void*) unzOpen(nativename.mb_str());
m_Pattern = right.AfterLast(wxT('/'));
m_BaseDir = right.BeforeLast(wxT('/'));
if (m_Archive)
{
if (unzGoToFirstFile((unzFile)m_Archive) != UNZ_OK)
{
unzClose((unzFile)m_Archive);
m_Archive = NULL;
}
else
{
if (m_AllowDirs)
{
delete m_DirsFound;
m_DirsFound = new wxLongToLongHashMap();
}
return DoFind();
}
}
return wxEmptyString;
}
wxString wxZipFSHandler::FindNext()
{
if (!m_Archive) return wxEmptyString;
return DoFind();
}
wxString wxZipFSHandler::DoFind()
{
static char namebuf[1024]; // char, not wxChar!
char *c;
wxString namestr, dir, filename;
wxString match = wxEmptyString;
while (match == wxEmptyString)
{
unzGetCurrentFileInfo((unzFile)m_Archive, NULL, namebuf, 1024, NULL, 0, NULL, 0);
for (c = namebuf; *c; c++) if (*c == '\\') *c = '/';
namestr = wxString::FromAscii( namebuf ); // TODO what encoding does ZIP use?
if (m_AllowDirs)
{
dir = namestr.BeforeLast(wxT('/'));
while (!dir.IsEmpty())
{
long key = 0;
for (size_t i = 0; i < dir.Length(); i++) key += (wxUChar)dir[i];
wxLongToLongHashMap::iterator it = m_DirsFound->find(key);
if (it == m_DirsFound->end())
{
m_DirsFound[key] = 1;
filename = dir.AfterLast(wxT('/'));
dir = dir.BeforeLast(wxT('/'));
if (!filename.IsEmpty() && m_BaseDir == dir &&
wxMatchWild(m_Pattern, filename, FALSE))
match = m_ZipFile + wxT("#zip:") + dir + wxT("/") + filename;
}
else
break; // already tranversed
}
}
filename = namestr.AfterLast(wxT('/'));
dir = namestr.BeforeLast(wxT('/'));
if (m_AllowFiles && !filename.IsEmpty() && m_BaseDir == dir &&
wxMatchWild(m_Pattern, filename, FALSE))
match = m_ZipFile + wxT("#zip:") + namestr;
if (unzGoToNextFile((unzFile)m_Archive) != UNZ_OK)
{
unzClose((unzFile)m_Archive);
m_Archive = NULL;
break;
}
}
return match;
}
#endif
//wxUSE_FILESYSTEM && wxUSE_FS_ZIP && wxUSE_ZIPSTREAM