Panda3D
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identityStream.h
00001 // Filename: identityStream.h
00002 // Created by:  drose (09Oct02)
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 IDENTITYSTREAM_H
00016 #define IDENTITYSTREAM_H
00017 
00018 #include "pandabase.h"
00019 
00020 // This module is not compiled if OpenSSL is not available.
00021 #ifdef HAVE_OPENSSL
00022 
00023 #include "socketStream.h"
00024 #include "identityStreamBuf.h"
00025 
00026 class HTTPChannel;
00027 class BioStreamPtr;
00028 
00029 ////////////////////////////////////////////////////////////////////
00030 //       Class : IIdentityStream
00031 // Description : An input stream object that reads data from a source
00032 //               istream, but automatically decodes the "identity"
00033 //               transfer-coding specified by an HTTP server.
00034 //
00035 //               In practice, this just means it reads from the sub
00036 //               stream (like a SubStreamBuf) up to but not past the
00037 //               specified content-length.  (If the content-length was
00038 //               unspecified, this class cannot be used.)  It also
00039 //               updates the HTTPChannel when the stream is
00040 //               completely read.
00041 ////////////////////////////////////////////////////////////////////
00042 // No need to export from DLL.
00043 class IIdentityStream : public ISocketStream {
00044 public:
00045   INLINE IIdentityStream();
00046   INLINE IIdentityStream(BioStreamPtr *source, HTTPChannel *doc,
00047                          bool has_content_length, size_t content_length);
00048 
00049   INLINE IIdentityStream &open(BioStreamPtr *source, HTTPChannel *doc,
00050                                bool has_content_length, size_t content_length);
00051   virtual ~IIdentityStream();
00052 
00053   virtual bool is_closed();
00054   virtual void close();
00055   virtual ReadState get_read_state();
00056 
00057 private:
00058   IdentityStreamBuf _buf;
00059 };
00060 
00061 #include "identityStream.I"
00062 
00063 #endif  // HAVE_OPENSSL
00064 
00065 #endif
00066 
00067 
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