]> git.saurik.com Git - wxWidgets.git/blobdiff - src/common/filesys.cpp
fix bug introduced in r54646: we still need to count the embedded NULs when convertin...
[wxWidgets.git] / src / common / filesys.cpp
index d63b432e72e736cfe073016f9a65bbb6a8cb9526..d0f4901ebb41f9e835226d20fc69e9a7f6235eb6 100644 (file)
     #include "wx/module.h"
 #endif
 
+#include "wx/sysopt.h"
 #include "wx/wfstream.h"
 #include "wx/mimetype.h"
 #include "wx/filename.h"
 #include "wx/tokenzr.h"
-#include "wx/fileback.h"
+#include "wx/uri.h"
+#include "wx/private/fileback.h"
 
+// ----------------------------------------------------------------------------
+// wxFSFile
+// ----------------------------------------------------------------------------
 
-//--------------------------------------------------------------------------------
+const wxString& wxFSFile::GetMimeType() const
+{
+    if ( m_MimeType.empty() && !m_Location.empty() )
+    {
+        wxConstCast(this, wxFSFile)->m_MimeType =
+            wxFileSystemHandler::GetMimeTypeFromExt(m_Location);
+    }
+
+    return m_MimeType;
+}
+
+// ----------------------------------------------------------------------------
 // wxFileSystemHandler
-//--------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
 
 IMPLEMENT_ABSTRACT_CLASS(wxFileSystemHandler, wxObject)
 
 
+/* static */
 wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 {
     wxString ext, mime;
@@ -61,69 +78,83 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 
 #if wxUSE_MIMETYPE
     static bool s_MinimalMimeEnsured = false;
-    if (!s_MinimalMimeEnsured)
+
+    // Don't use mime types manager if the application doesn't need it and it would be
+    // cause an unacceptable delay, especially on startup.
+    bool useMimeTypesManager = true;
+#if wxUSE_SYSTEM_OPTIONS
+    useMimeTypesManager = (wxSystemOptions::GetOptionInt(wxT("filesys.no-mimetypesmanager")) == 0);
+#endif
+
+    if (useMimeTypesManager)
     {
-        static const wxFileTypeInfo fallbacks[] =
+        if (!s_MinimalMimeEnsured)
+        {
+            static const wxFileTypeInfo fallbacks[] =
+            {
+                wxFileTypeInfo(_T("image/jpeg"),
+                    wxEmptyString,
+                    wxEmptyString,
+                    _T("JPEG image (from fallback)"),
+                    _T("jpg"), _T("jpeg"), _T("JPG"), _T("JPEG"), wxNullPtr),
+                    wxFileTypeInfo(_T("image/gif"),
+                    wxEmptyString,
+                    wxEmptyString,
+                    _T("GIF image (from fallback)"),
+                    _T("gif"), _T("GIF"), wxNullPtr),
+                    wxFileTypeInfo(_T("image/png"),
+                    wxEmptyString,
+                    wxEmptyString,
+                    _T("PNG image (from fallback)"),
+                    _T("png"), _T("PNG"), wxNullPtr),
+                    wxFileTypeInfo(_T("image/bmp"),
+                    wxEmptyString,
+                    wxEmptyString,
+                    _T("windows bitmap image (from fallback)"),
+                    _T("bmp"), _T("BMP"), wxNullPtr),
+                    wxFileTypeInfo(_T("text/html"),
+                    wxEmptyString,
+                    wxEmptyString,
+                    _T("HTML document (from fallback)"),
+                    _T("htm"), _T("html"), _T("HTM"), _T("HTML"), wxNullPtr),
+                    // must terminate the table with this!
+                    wxFileTypeInfo()
+            };
+            wxTheMimeTypesManager->AddFallbacks(fallbacks);
+            s_MinimalMimeEnsured = true;
+        }
+        
+        wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(ext);
+        if ( !ft || !ft -> GetMimeType(&mime) )
         {
-            wxFileTypeInfo(_T("image/jpeg"),
-                           wxEmptyString,
-                           wxEmptyString,
-                           _T("JPEG image (from fallback)"),
-                           _T("jpg"), _T("jpeg"), _T("JPG"), _T("JPEG"), NULL),
-            wxFileTypeInfo(_T("image/gif"),
-                           wxEmptyString,
-                           wxEmptyString,
-                           _T("GIF image (from fallback)"),
-                           _T("gif"), _T("GIF"), NULL),
-            wxFileTypeInfo(_T("image/png"),
-                           wxEmptyString,
-                           wxEmptyString,
-                           _T("PNG image (from fallback)"),
-                           _T("png"), _T("PNG"), NULL),
-            wxFileTypeInfo(_T("image/bmp"),
-                           wxEmptyString,
-                           wxEmptyString,
-                           _T("windows bitmap image (from fallback)"),
-                           _T("bmp"), _T("BMP"), NULL),
-            wxFileTypeInfo(_T("text/html"),
-                           wxEmptyString,
-                           wxEmptyString,
-                           _T("HTML document (from fallback)"),
-                           _T("htm"), _T("html"), _T("HTM"), _T("HTML"), NULL),
-            // must terminate the table with this!
-            wxFileTypeInfo()
-        };
-        wxTheMimeTypesManager->AddFallbacks(fallbacks);
-        s_MinimalMimeEnsured = true;
+            mime = wxEmptyString;
+        }
+        
+        delete ft;
+        
+        return mime;
     }
-
-    wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(ext);
-    if ( !ft || !ft -> GetMimeType(&mime) )
+    else
+#endif
     {
-        mime = wxEmptyString;
+        if ( ext.IsSameAs(wxT("htm"), false) || ext.IsSameAs(_T("html"), false) )
+            return wxT("text/html");
+        if ( ext.IsSameAs(wxT("jpg"), false) || ext.IsSameAs(_T("jpeg"), false) )
+            return wxT("image/jpeg");
+        if ( ext.IsSameAs(wxT("gif"), false) )
+            return wxT("image/gif");
+        if ( ext.IsSameAs(wxT("png"), false) )
+            return wxT("image/png");
+        if ( ext.IsSameAs(wxT("bmp"), false) )
+            return wxT("image/bmp");
+        return wxEmptyString;
     }
-
-    delete ft;
-
-    return mime;
-#else
-    if ( ext.IsSameAs(wxT("htm"), false) || ext.IsSameAs(_T("html"), false) )
-        return wxT("text/html");
-    if ( ext.IsSameAs(wxT("jpg"), false) || ext.IsSameAs(_T("jpeg"), false) )
-        return wxT("image/jpeg");
-    if ( ext.IsSameAs(wxT("gif"), false) )
-        return wxT("image/gif");
-    if ( ext.IsSameAs(wxT("png"), false) )
-        return wxT("image/png");
-    if ( ext.IsSameAs(wxT("bmp"), false) )
-        return wxT("image/bmp");
-    return wxEmptyString;
-#endif
 }
 
 
 
-wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
+/* static */
+wxString wxFileSystemHandler::GetProtocol(const wxString& location)
 {
     wxString s = wxEmptyString;
     int i, l = location.length();
@@ -138,7 +169,8 @@ wxString wxFileSystemHandler::GetProtocol(const wxString& location) const
 }
 
 
-wxString wxFileSystemHandler::GetLeftLocation(const wxString& location) const
+/* static */
+wxString wxFileSystemHandler::GetLeftLocation(const wxString& location)
 {
     int i;
     bool fnd = false;
@@ -150,7 +182,8 @@ wxString wxFileSystemHandler::GetLeftLocation(const wxString& location) const
     return wxEmptyString;
 }
 
-wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const
+/* static */
+wxString wxFileSystemHandler::GetRightLocation(const wxString& location)
 {
     int i, l = location.length();
     int l2 = l + 1;
@@ -166,15 +199,18 @@ wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const
     else return location.Mid(i + 1, l2 - i - 2);
 }
 
-wxString wxFileSystemHandler::GetAnchor(const wxString& location) const
+/* static */
+wxString wxFileSystemHandler::GetAnchor(const wxString& location)
 {
     wxChar c;
     int l = location.length();
 
     for (int i = l-1; i >= 0; i--) {
         c = location[i];
-        if (c == wxT('#')) return location.Right(l-i-1);
-        else if ((c == wxT('.')) || (c == wxT('/')) || (c == wxT('\\')) || (c == wxT(':'))) return wxEmptyString;
+        if (c == wxT('#'))
+            return location.Right(l-i-1);
+        else if ((c == wxT('/')) || (c == wxT('\\')) || (c == wxT(':')))
+            return wxEmptyString;
     }
     return wxEmptyString;
 }
@@ -215,10 +251,10 @@ wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString&
 
     // we need to check whether we can really read from this file, otherwise
     // wxFSFile is not going to work
-#if wxUSE_FILE
-    wxFileInputStream *is = new wxFileInputStream(fullpath);
-#elif wxUSE_FFILE
+#if wxUSE_FFILE
     wxFFileInputStream *is = new wxFFileInputStream(fullpath);
+#elif wxUSE_FILE
+    wxFileInputStream *is = new wxFileInputStream(fullpath);
 #else
 #error One of wxUSE_FILE or wxUSE_FFILE must be set to 1 for wxFSHandler to work
 #endif
@@ -230,7 +266,7 @@ wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString&
 
     return new wxFSFile(is,
                         right,
-                        GetMimeTypeFromExt(location),
+                        wxEmptyString,
                         GetAnchor(location)
 #if wxUSE_DATETIME
                         ,wxDateTime(wxFileModificationTime(fullpath))
@@ -262,6 +298,12 @@ IMPLEMENT_ABSTRACT_CLASS(wxFSFile, wxObject)
 wxList wxFileSystem::m_Handlers;
 
 
+wxFileSystem::~wxFileSystem()
+{
+    WX_CLEAR_HASH_MAP(wxFSHandlerHash, m_LocalHandlers)
+}
+
+
 static wxString MakeCorrectPath(const wxString& path)
 {
     wxString p(path);
@@ -358,8 +400,30 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir)
 
 
 
+wxFileSystemHandler *wxFileSystem::MakeLocal(wxFileSystemHandler *h)
+{
+    wxClassInfo *classinfo = h->GetClassInfo();
+
+    if (classinfo->IsDynamic())
+    {
+        wxFileSystemHandler*& local = m_LocalHandlers[classinfo];
+        if (!local)
+            local = (wxFileSystemHandler*)classinfo->CreateObject();
+        return local;
+    }
+    else
+    {
+        return h;
+    }
+}
+
+
+
 wxFSFile* wxFileSystem::OpenFile(const wxString& location, int flags)
 {
+    if ((flags & wxFS_READ) == 0)
+        return NULL;
+
     wxString loc = MakeCorrectPath(location);
     unsigned i, ln;
     wxChar meta;
@@ -370,7 +434,7 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location, int flags)
     meta = 0;
     for (i = 0; i < ln; i++)
     {
-        switch (loc[i])
+        switch ( loc[i].GetValue() )
         {
             case wxT('/') : case wxT(':') : case wxT('#') :
                 meta = loc[i];
@@ -389,7 +453,7 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location, int flags)
             wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
             if (h->CanOpen(m_Path + loc))
             {
-                s = h->OpenFile(*this, m_Path + loc);
+                s = MakeLocal(h)->OpenFile(*this, m_Path + loc);
                 if (s) { m_LastName = m_Path + loc; break; }
             }
             node = node->GetNext();
@@ -405,7 +469,7 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location, int flags)
             wxFileSystemHandler *h = (wxFileSystemHandler*) node->GetData();
             if (h->CanOpen(loc))
             {
-                s = h->OpenFile(*this, loc);
+                s = MakeLocal(h)->OpenFile(*this, loc);
                 if (s) { m_LastName = loc; break; }
             }
             node = node->GetNext();
@@ -438,18 +502,24 @@ wxString wxFileSystem::FindFirst(const wxString& spec, int flags)
     node = m_Handlers.GetFirst();
     while (node)
     {
-        m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
-        if (m_FindFileHandler -> CanOpen(m_Path + spec2))
+        wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
+        if (h -> CanOpen(m_Path + spec2))
+        {
+            m_FindFileHandler = MakeLocal(h);
             return m_FindFileHandler -> FindFirst(m_Path + spec2, flags);
+        }
         node = node->GetNext();
     }
 
     node = m_Handlers.GetFirst();
     while (node)
     {
-        m_FindFileHandler = (wxFileSystemHandler*) node -> GetData();
-        if (m_FindFileHandler -> CanOpen(spec2))
+        wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData();
+        if (h -> CanOpen(spec2))
+        {
+            m_FindFileHandler = MakeLocal(h);
             return m_FindFileHandler -> FindFirst(spec2, flags);
+        }
         node = node->GetNext();
     }
 
@@ -465,16 +535,19 @@ wxString wxFileSystem::FindNext()
 }
 
 bool wxFileSystem::FindFileInPath(wxString *pStr,
-                                  const wxChar *path,
-                                  const wxChar *basename)
+                                  const wxString& path,
+                                  const wxString& basename)
 {
     // we assume that it's not empty
-    wxCHECK_MSG( !wxIsEmpty(basename), false,
+    wxCHECK_MSG( !basename.empty(), false,
                 _T("empty file name in wxFileSystem::FindFileInPath"));
 
+    wxString name;
     // skip path separator in the beginning of the file name if present
-    if ( wxIsPathSeparator(*basename) )
-       basename++;
+    if ( wxIsPathSeparator(basename[0u]) )
+        name = basename.substr(1);
+    else
+        name = basename;
 
     wxStringTokenizer tokenizer(path, wxPATH_SEP);
     while ( tokenizer.HasMoreTokens() )
@@ -482,7 +555,7 @@ bool wxFileSystem::FindFileInPath(wxString *pStr,
         wxString strFile = tokenizer.GetNextToken();
         if ( !wxEndsWithPathSeparator(strFile) )
             strFile += wxFILE_SEP_PATH;
-        strFile += basename;
+        strFile += name;
 
         wxFSFile *file = OpenFile(strFile);
         if ( file )
@@ -557,8 +630,7 @@ wxFileName wxFileSystem::URLToFileName(const wxString& url)
         path = path.Mid(2);
 #endif
 
-    path.Replace(wxT("%25"), wxT("%"));
-    path.Replace(wxT("%3A"), wxT(":"));
+    path = wxURI::Unescape(path);
 
 #ifdef __WXMSW__
     // file urls either start with a forward slash (local harddisk),
@@ -605,7 +677,18 @@ wxString wxFileSystem::FileNameToURL(const wxFileName& filename)
 #endif
 
     url.Replace(g_nativePathString, g_unixPathString);
-    url.Replace(wxT("%"), wxT("%25"));
+    url.Replace(wxT("%"), wxT("%25")); // '%'s must be replaced first!
+    url.Replace(wxT("#"), wxT("%23"));
+
+    // notice that all colons *must* be encoded in the paths used by
+    // wxFileSystem even though this makes URLs produced by this method
+    // unusable with IE under Windows as it requires "file:///c:/foo.bar" and
+    // doesn't accept "file:///c%3a/foo.bar" -- but then we never made any
+    // guarantees about general suitability of the strings returned by this
+    // method, they must work with wxFileSystem only and not encoding the colon
+    // breaks handling of "http://wherever/whatever.zip#zip:filename.ext" URLs
+    // so we really can't do this without heavy changes to the parsing code
+    // here, in particular in GetRightLocation()
     url.Replace(wxT(":"), wxT("%3A"));
     url = wxT("file:") + url;
     return url;