Silence warning about truncation since the comment says it ok

[wxWidgets.git] / src / common / fs_zip.cpp

diff --git a/src/common/fs_zip.cpp b/src/common/fs_zip.cpp
index 144adb1f995ae2aca43f863a6044c30db140333c..eefa93f96af4aa7723c2c3a963b003946f0e54f4 100644 (file)
--- a/src/common/fs_zip.cpp
+++ b/src/common/fs_zip.cpp
@@ -7,12 +7,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-
-
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "fs_zip.h"
-#endif
-
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
@@ -32,12 +26,33 @@
 #include "wx/fs_zip.h"
 
 
+//---------------------------------------------------------------------------
+// wxZipFSInputStream
+//---------------------------------------------------------------------------
+// Helper class for wxZipFSHandler
+
+class wxZipFSInputStream : public wxZipInputStream
+{
+    public:
+       wxZipFSInputStream(wxFSFile *file)
+               : wxZipInputStream(*file->GetStream())
+       {
+            m_file = file;
+#if 1 //WXWIN_COMPATIBILITY_2_6
+            m_allowSeeking = true;
+#endif
+       }
+
+       virtual ~wxZipFSInputStream() { delete m_file; }
+
+    private:
+       wxFSFile *m_file;
+};
+
 //----------------------------------------------------------------------------
 // wxZipFSHandler
 //----------------------------------------------------------------------------
 
-
-
 wxZipFSHandler::wxZipFSHandler() : wxFileSystemHandler()
 {
     m_Archive = NULL;
@@ -50,44 +65,30 @@ wxZipFSHandler::wxZipFSHandler() : wxFileSystemHandler()
 
 wxZipFSHandler::~wxZipFSHandler()
 {
-    if (m_Archive)
-        CloseArchive(m_Archive);
-    if (m_DirsFound)
-        delete m_DirsFound;
+    Cleanup();
 }
 
 
-
-void wxZipFSHandler::CloseArchive(wxZipInputStream *archive)
+void wxZipFSHandler::Cleanup()
 {
-    wxInputStream *stream = archive->GetFilterInputStream();
-    delete archive;
-    delete stream;
+    wxDELETE(m_Archive);
+    wxDELETE(m_DirsFound);
 }
-
+ 
 
 
 bool wxZipFSHandler::CanOpen(const wxString& location)
 {
     wxString p = GetProtocol(location);
-    return (p == wxT("zip")) &&
-           (GetProtocol(GetLeftLocation(location)) == wxT("file"));
+    return (p == wxT("zip"));
 }
 
 
-
-
 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;
-    }
+    wxZipInputStream *s;
 
     if (right.Contains(wxT("./")))
     {
@@ -99,12 +100,26 @@ wxFSFile* wxZipFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& l
 
     if (right.GetChar(0) == wxT('/')) right = right.Mid(1);
 
-    wxFileName leftFilename = wxFileSystem::URLToFileName(left);
+    // a new wxFileSystem object is needed here to avoid infinite recursion
+    wxFSFile *leftFile = wxFileSystem().OpenFile(left);
+    if (!leftFile)
+       return NULL;
 
-    s = new wxZipInputStream(leftFilename.GetFullPath(), right);
-    if (s && s->IsOk() )
+    s = new wxZipFSInputStream(leftFile);
+    if (s && s->IsOk())
     {
-        return new wxFSFile(s,
+       bool found = false;
+       while (!found)
+       {
+           wxZipEntry *ent = s->GetNextEntry();
+           if (!ent)
+               break;
+           if (ent->GetInternalName() == right)
+               found = true;
+           delete ent;
+       }
+       if (found)
+           return new wxFSFile(s,
                             left + wxT("#zip:") + right,
                             GetMimeTypeFromExt(location),
                             GetAnchor(location)
@@ -125,20 +140,14 @@ wxString wxZipFSHandler::FindFirst(const wxString& spec, int flags)
     wxString right = GetRightLocation(spec);
     wxString left = GetLeftLocation(spec);
 
-    if (right.Last() == wxT('/')) right.RemoveLast();
+    if (!right.empty() && right.Last() == wxT('/')) right.RemoveLast();
 
     if (m_Archive)
     {
-        CloseArchive(m_Archive);
+        delete m_Archive;
         m_Archive = NULL;
     }
 
-    if (GetProtocol(left) != wxT("file"))
-    {
-        wxLogError(_("ZIP handler currently supports only local files!"));
-        return wxEmptyString;
-    }
-
     switch (flags)
     {
         case wxFILE:
@@ -150,17 +159,24 @@ wxString wxZipFSHandler::FindFirst(const wxString& spec, int flags)
     }
 
     m_ZipFile = left;
-    wxString nativename = wxFileSystem::URLToFileName(m_ZipFile).GetFullPath();
-    m_Archive = new wxZipInputStream(*new wxFFileInputStream(nativename));
+
+    wxFSFile *leftFile = wxFileSystem().OpenFile(left);
+    if (leftFile)
+        m_Archive = new wxZipFSInputStream(leftFile);
+
     m_Pattern = right.AfterLast(wxT('/'));
     m_BaseDir = right.BeforeLast(wxT('/'));
+    if (m_BaseDir.StartsWith(wxT("/")))
+        m_BaseDir = m_BaseDir.Mid(1);
 
     if (m_Archive)
     {
         if (m_AllowDirs)
         {
             delete m_DirsFound;
-            m_DirsFound = new wxLongToLongHashMap();
+            m_DirsFound = new wxZipFilenameHashMap();
+            if (right.empty())  // allow "/" to match the archive root
+                return spec;
         }
         return DoFind();
     }
@@ -187,7 +203,7 @@ wxString wxZipFSHandler::DoFind()
         wxZipEntry *entry = m_Archive->GetNextEntry();
         if (!entry)
         {
-            CloseArchive(m_Archive);
+            delete m_Archive;
             m_Archive = NULL;
             break;
         }
@@ -197,17 +213,14 @@ wxString wxZipFSHandler::DoFind()
         if (m_AllowDirs)
         {
             dir = namestr.BeforeLast(wxT('/'));
-            while (!dir.IsEmpty())
+            while (!dir.empty())
             {
-                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())
+                if( m_DirsFound->find(dir) == m_DirsFound->end() )
                 {
-                    (*m_DirsFound)[key] = 1;
+                    (*m_DirsFound)[dir] = 1;
                     filename = dir.AfterLast(wxT('/'));
                     dir = dir.BeforeLast(wxT('/'));
-                    if (!filename.IsEmpty() && m_BaseDir == dir &&
+                    if (!filename.empty() && m_BaseDir == dir &&
                                 wxMatchWild(m_Pattern, filename, false))
                         match = m_ZipFile + wxT("#zip:") + dir + wxT("/") + filename;
                 }
@@ -218,7 +231,7 @@ wxString wxZipFSHandler::DoFind()
 
         filename = namestr.AfterLast(wxT('/'));
         dir = namestr.BeforeLast(wxT('/'));
-        if (m_AllowFiles && !filename.IsEmpty() && m_BaseDir == dir &&
+        if (m_AllowFiles && !filename.empty() && m_BaseDir == dir &&
                             wxMatchWild(m_Pattern, filename, false))
             match = m_ZipFile + wxT("#zip:") + namestr;
     }