// Purpose: HTTP and FTP file system
// Author: Vaclav Slavik
// Copyright: (c) 1999 Vaclav Slavik
-// Licence: wxWindows Licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-/*
-
-REMARKS :
-
-This FS creates local cache (in /tmp directory). The cache is freed
-on program exit.
-
-Size of cache is limited to cca 1000 items (due to GetTempFileName
-limitation)
-
-
-*/
-
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "fs_inet.h"
#endif
#include "wx/fs_inet.h"
#include "wx/module.h"
-class wxInetCacheNode : public wxObject
+// ----------------------------------------------------------------------------
+// Helper classes
+// ----------------------------------------------------------------------------
+
+// This stream deletes the file when destroyed
+class wxTemporaryFileInputStream : public wxFileInputStream
{
- private:
- wxString m_Temp;
- wxString m_Mime;
+public:
+ wxTemporaryFileInputStream(const wxString& filename) :
+ wxFileInputStream(filename), m_filename(filename) {}
+
+ ~wxTemporaryFileInputStream()
+ {
+ // NB: copied from wxFileInputStream dtor, we need to do it before
+ // wxRemoveFile
+ if (m_file_destroy)
+ {
+ delete m_file;
+ m_file_destroy = false;
+ }
+ wxRemoveFile(m_filename);
+ }
- public:
- wxInetCacheNode(const wxString& l, const wxString& m) : wxObject() {m_Temp = l; m_Mime = m;}
- const wxString& GetTemp() const {return m_Temp;}
- const wxString& GetMime() const {return m_Mime;}
+protected:
+ wxString m_filename;
};
-
-
-
-//--------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
// wxInternetFSHandler
-//--------------------------------------------------------------------------------
-
+// ----------------------------------------------------------------------------
static wxString StripProtocolAnchor(const wxString& location)
{
}
-
bool wxInternetFSHandler::CanOpen(const wxString& location)
{
wxString p = GetProtocol(location);
}
-wxFSFile* wxInternetFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
+wxFSFile* wxInternetFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs),
+ const wxString& location)
{
- wxString right = GetProtocol(location) + wxT(":") + StripProtocolAnchor(location);
- wxInputStream *s;
- wxString content;
- wxInetCacheNode *info;
+ wxString right =
+ GetProtocol(location) + wxT(":") + StripProtocolAnchor(location);
- info = (wxInetCacheNode*) m_Cache.Get(right);
-
- // Add item into cache:
- if (info == NULL)
+ wxURL url(right);
+ if (url.GetError() == wxURL_NOERR)
{
- wxURL url(right);
- if (url.GetError() == wxURL_NOERR)
+ wxInputStream *s = url.GetInputStream();
+ wxString content = url.GetProtocol().GetContentType();
+ if (content == wxEmptyString) content = GetMimeTypeFromExt(location);
+ if (s)
{
- s = url.GetInputStream();
- content = url.GetProtocol().GetContentType();
- if (content == wxEmptyString) content = GetMimeTypeFromExt(location);
- if (s)
- {
- wxChar buf[256];
-
- wxGetTempFileName( wxT("wxhtml"), buf);
- info = new wxInetCacheNode(buf, content);
- m_Cache.Put(right, info);
-
- { // ok, now copy it:
- wxFileOutputStream sout((wxString)buf);
- s -> Read(sout); // copy the stream
- }
- delete s;
- }
- else
- return (wxFSFile*) NULL; // we can't open the URL
- }
- else
- return (wxFSFile*) NULL; // incorrect URL
- }
+ wxString tmpfile =
+ wxFileName::CreateTempFileName(wxT("wxhtml"));
- // Load item from cache:
- s = new wxFileInputStream(info->GetTemp());
- if (!s)
- return (wxFSFile*) NULL;
-
- return new wxFSFile(s,
- right,
- info->GetMime(),
- GetAnchor(location)
+ { // now copy streams content to temporary file:
+ wxFileOutputStream sout(tmpfile);
+ s->Read(sout);
+ }
+ delete s;
+
+ return new wxFSFile(new wxTemporaryFileInputStream(tmpfile),
+ right,
+ content,
+ GetAnchor(location)
#if wxUSE_DATETIME
- , wxDateTime::Now()
+ , wxDateTime::Now()
#endif // wxUSE_DATETIME
);
-}
-
-
-
-wxInternetFSHandler::~wxInternetFSHandler()
-{
- wxHashTable::compatibility_iterator n;
- wxInetCacheNode *n2;
-
- m_Cache.BeginFind();
- while ((n = m_Cache.Next()))
- {
- n2 = (wxInetCacheNode*) n->GetData();
- wxRemoveFile(n2->GetTemp());
- delete n2;
+ }
}
+
+ return (wxFSFile*) NULL; // incorrect URL
}
+
class wxFileSystemInternetModule : public wxModule
{
DECLARE_DYNAMIC_CLASS(wxFileSystemInternetModule)