cf1f0870d8
Corrected prop dialog, Tabbing in parent top-level-windows no longer possible, git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3982 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
157 lines
3.5 KiB
C++
157 lines
3.5 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: fs_inet.cpp
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// Purpose: HTTP and FTP file system
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// Author: Vaclav Slavik
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// Copyright: (c) 1999 Vaclav Slavik
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// Licence: wxWindows Licence
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/////////////////////////////////////////////////////////////////////////////
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/*
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REMARKS :
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This FS creates local cache (in /tmp directory). The cache is freed
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on program exit.
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Size of cache is limited to cca 1000 items (due to GetTempFileName
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limitation)
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*/
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include <wx/wxprec.h>
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#ifdef __BORDLANDC__
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#pragma hdrstop
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#endif
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#if !wxUSE_SOCKETS
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#undef wxUSE_FS_INET
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#define wxUSE_FS_INET 0
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#endif
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#if wxUSE_FS_INET
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#ifndef WXPRECOMP
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#include <wx/wx.h>
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#endif
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#include "wx/wfstream.h"
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#include "wx/url.h"
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#include "wx/filesys.h"
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#include "wx/fs_inet.h"
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#include "wx/module.h"
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class wxInetCacheNode : public wxObject
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{
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private:
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wxString m_Temp;
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wxString m_Mime;
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public:
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wxInetCacheNode(const wxString& l, const wxString& m) : wxObject() {m_Temp = l; m_Mime = m;}
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const wxString& GetTemp() const {return m_Temp;}
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const wxString& GetMime() const {return m_Mime;}
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};
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//--------------------------------------------------------------------------------
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// wxInternetFSHandler
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//--------------------------------------------------------------------------------
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bool wxInternetFSHandler::CanOpen(const wxString& location)
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{
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wxString p = GetProtocol(location);
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return (p == wxT("http")) || (p == wxT("ftp"));
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}
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wxFSFile* wxInternetFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& location)
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{
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wxString right = GetProtocol(location) + wxT(":") + GetRightLocation(location);
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wxInputStream *s;
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wxString content;
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wxInetCacheNode *info;
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info = (wxInetCacheNode*) m_Cache.Get(right);
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// Add item into cache:
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if (info == NULL)
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{
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wxURL url(right);
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s = url.GetInputStream();
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content = url.GetProtocol().GetContentType();
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if (content == wxEmptyString) content = GetMimeTypeFromExt(location);
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if (s)
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{
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wxChar buf[256];
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wxGetTempFileName( wxT("wxhtml"), buf);
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info = new wxInetCacheNode(buf, content);
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m_Cache.Put(right, info);
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{ // ok, now copy it:
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wxFileOutputStream sout((wxString)buf);
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s -> Read(sout); // copy the stream
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}
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delete s;
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}
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else
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{
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return (wxFSFile*) NULL; // we can't open the URL
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}
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}
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// Load item from cache:
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s = new wxFileInputStream(info->GetTemp());
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if (s)
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{
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return new wxFSFile(s,
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right,
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info->GetMime(),
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GetAnchor(location));
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}
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else return (wxFSFile*) NULL;
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}
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wxInternetFSHandler::~wxInternetFSHandler()
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{
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wxNode *n;
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wxInetCacheNode *n2;
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m_Cache.BeginFind();
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while ((n = m_Cache.Next()) != NULL)
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{
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n2 = (wxInetCacheNode*) n->GetData();
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wxRemoveFile(n2->GetTemp());
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delete n2;
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}
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}
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class wxFileSystemInternetModule : public wxModule
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{
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DECLARE_DYNAMIC_CLASS(wxFileSystemInternetModule)
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public:
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virtual bool OnInit()
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{
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wxFileSystem::AddHandler(new wxInternetFSHandler);
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return TRUE;
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}
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virtual void OnExit() {}
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};
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IMPLEMENT_DYNAMIC_CLASS(wxFileSystemInternetModule, wxModule)
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#endif // wxUSE_FS_INET
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