X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/df5168c427b51f1ab2b3200a5c8f7626b3d24aae..0a470e5ea537237f0562c3b2182ee293dec36eb3:/src/common/fs_inet.cpp

diff --git a/src/common/fs_inet.cpp b/src/common/fs_inet.cpp
index 1e3d353a7c..9339de6720 100644
--- a/src/common/fs_inet.cpp
+++ b/src/common/fs_inet.cpp
@@ -1,32 +1,16 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        fs_inet.cpp
+// Name:        src/common/fs_inet.cpp
 // Purpose:     HTTP and FTP file system
 // Author:      Vaclav Slavik
 // Copyright:   (c) 1999 Vaclav Slavik
-// Licence:     wxWindows Licence
+// RCS-ID:      $Id$
+// 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__
-#pragma implementation "fs_inet.h"
-#endif
-
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
 #if !wxUSE_SOCKETS
@@ -36,44 +20,55 @@ limitation)
 
 #if wxUSE_FILESYSTEM && wxUSE_FS_INET
 
-#ifndef WXPRECOMP
+#ifndef WX_PRECOMP
+    #include "wx/module.h"
 #endif
 
 #include "wx/wfstream.h"
 #include "wx/url.h"
 #include "wx/filesys.h"
 #include "wx/fs_inet.h"
-#include "wx/module.h"
-
-class wxInetCacheNode : public wxObject
-{
-    private:
-        wxString m_Temp;
-        wxString m_Mime;
 
-    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;}
-};
+// ----------------------------------------------------------------------------
+// Helper classes
+// ----------------------------------------------------------------------------
 
+// This stream deletes the file when destroyed
+class wxTemporaryFileInputStream : public wxFileInputStream
+{
+public:
+    wxTemporaryFileInputStream(const wxString& filename) :
+        wxFileInputStream(filename), m_filename(filename) {}
 
+    virtual ~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);
+    }
 
+protected:
+    wxString m_filename;
+};
 
 
-//--------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
 // wxInternetFSHandler
-//--------------------------------------------------------------------------------
-
+// ----------------------------------------------------------------------------
 
 static wxString StripProtocolAnchor(const wxString& location)
 {
     wxString myloc(location.BeforeLast(wxT('#')));
-    if (myloc.IsEmpty()) myloc = location.AfterFirst(wxT(':'));
+    if (myloc.empty()) myloc = location.AfterFirst(wxT(':'));
     else myloc = myloc.AfterFirst(wxT(':'));
 
     // fix malformed url:
-    if (myloc.Left(2) != wxT("//"))
+    if (!myloc.Left(2).IsSameAs(wxT("//")))
     {
         if (myloc.GetChar(0) != wxT('/')) myloc = wxT("//") + myloc;
         else myloc = wxT("/") + myloc;
@@ -84,101 +79,86 @@ static wxString StripProtocolAnchor(const wxString& location)
 }
 
 
-
 bool wxInternetFSHandler::CanOpen(const wxString& location)
 {
+#if wxUSE_URL
     wxString p = GetProtocol(location);
     if ((p == wxT("http")) || (p == wxT("ftp")))
     {
         wxURL url(p + wxT(":") + StripProtocolAnchor(location));
         return (url.GetError() == wxURL_NOERR);
     }
-
-    return FALSE;
+#endif
+    return false;
 }
 
 
-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;
-
-    info = (wxInetCacheNode*) m_Cache.Get(right);
-
-    // Add item into cache:
-    if (info == NULL)
+#if !wxUSE_URL
+    return NULL;
+#else
+    wxString right =
+        GetProtocol(location) + wxT(":") + StripProtocolAnchor(location);
+
+    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 (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;
+            {   // now copy streams content to temporary file:
+                wxFileOutputStream sout(tmpfile);
+                s->Read(sout);
+            }
+            delete s;
 
-    return new wxFSFile(s,
-                        right,
-                        info->GetMime(),
-                        GetAnchor(location)
+            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 NULL; // incorrect URL
+#endif
 }
 
+
 class wxFileSystemInternetModule : public wxModule
 {
     DECLARE_DYNAMIC_CLASS(wxFileSystemInternetModule)
 
     public:
+        wxFileSystemInternetModule() :
+           wxModule(),
+           m_handler(NULL)
+        {
+        }
+
         virtual bool OnInit()
         {
-            wxFileSystem::AddHandler(new wxInternetFSHandler);
-            return TRUE;
+            m_handler = new wxInternetFSHandler;
+            wxFileSystem::AddHandler(m_handler);
+            return true;
+        }
+
+        virtual void OnExit()
+        {
+            delete wxFileSystem::RemoveHandler(m_handler);
         }
-        virtual void OnExit() {}
+
+    private:
+        wxFileSystemHandler* m_handler;
 };
 
 IMPLEMENT_DYNAMIC_CLASS(wxFileSystemInternetModule, wxModule)