Panda3D

virtualFileMountHTTP.h

00001 // Filename: virtualFileMountHTTP.h
00002 // Created by:  drose (30Oct08)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef VIRTUALFILEMOUNTHTTP_H
00016 #define VIRTUALFILEMOUNTHTTP_H
00017 
00018 #include "pandabase.h"
00019 
00020 #ifdef HAVE_OPENSSL
00021 
00022 #include "virtualFileMount.h"
00023 #include "httpClient.h"
00024 #include "httpChannel.h"
00025 #include "urlSpec.h"
00026 #include "pointerTo.h"
00027 #include "mutexImpl.h"
00028 
00029 ////////////////////////////////////////////////////////////////////
00030 //       Class : VirtualFileMountHTTP
00031 // Description : Maps a web page (URL root) into the
00032 //               VirtualFileSystem.
00033 ////////////////////////////////////////////////////////////////////
00034 class EXPCL_PANDAEXPRESS VirtualFileMountHTTP : public VirtualFileMount {
00035 PUBLISHED:
00036   VirtualFileMountHTTP(const URLSpec &root, HTTPClient *http = HTTPClient::get_global_ptr());
00037   virtual ~VirtualFileMountHTTP();
00038 
00039   INLINE HTTPClient *get_http_client() const;
00040   INLINE const URLSpec &get_root() const;
00041 
00042   static void reload_vfs_mount_url();
00043 
00044 public:
00045   virtual PT(VirtualFile) make_virtual_file(const Filename &local_filename,
00046                                             const Filename &original_filename, 
00047                                             bool implicit_pz_file,
00048                                             int open_flags);
00049 
00050   virtual bool has_file(const Filename &file) const;
00051   virtual bool is_directory(const Filename &file) const;
00052   virtual bool is_regular_file(const Filename &file) const;
00053 
00054   virtual istream *open_read_file(const Filename &file) const;
00055   virtual off_t get_file_size(const Filename &file, istream *stream) const;
00056   virtual off_t get_file_size(const Filename &file) const;
00057   virtual time_t get_timestamp(const Filename &file) const;
00058 
00059   virtual bool scan_directory(vector_string &contents, 
00060                               const Filename &dir) const;
00061 
00062   virtual void output(ostream &out) const;
00063 
00064   PT(HTTPChannel) get_channel();
00065   void recycle_channel(HTTPChannel *channel);
00066 
00067 private:
00068   PT(HTTPClient) _http;
00069   URLSpec _root;
00070 
00071   MutexImpl _channels_lock;
00072   typedef pvector< PT(HTTPChannel) > Channels;
00073   Channels _channels;
00074 
00075 public:
00076   virtual TypeHandle get_type() const {
00077     return get_class_type();
00078   }
00079   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00080   static TypeHandle get_class_type() {
00081     return _type_handle;
00082   }
00083   static void init_type() {
00084     VirtualFileMount::init_type();
00085     register_type(_type_handle, "VirtualFileMountHTTP",
00086                   VirtualFileMount::get_class_type());
00087   }
00088 
00089 private:
00090   static TypeHandle _type_handle;
00091 };
00092 
00093 #include "virtualFileMountHTTP.I"
00094 
00095 #endif  // HAVE_OPENSSL
00096 
00097 #endif
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