responder.h
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1 /*
2  * Copyright (C) 2009 by Marc Boris Duerner, Tommi Maekitalo
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * As a special exception, you may use this file as part of a free
10  * software library without restriction. Specifically, if other files
11  * instantiate templates or use macros or inline functions from this
12  * file, or you compile this file and link it with other files to
13  * produce an executable, this file does not by itself cause the
14  * resulting executable to be covered by the GNU General Public
15  * License. This exception does not however invalidate any other
16  * reasons why the executable file might be covered by the GNU Library
17  * General Public License.
18  *
19  * This library is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22  * Lesser General Public License for more details.
23  *
24  * You should have received a copy of the GNU Lesser General Public
25  * License along with this library; if not, write to the Free Software
26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27  */
28 
29 #ifndef cxxtools_Http_Responder_h
30 #define cxxtools_Http_Responder_h
31 
32 #include <cxxtools/http/service.h>
33 #include <iosfwd>
34 #include <exception>
35 
36 namespace cxxtools
37 {
38 
39 namespace net
40 {
41  class TcpSocket;
42 }
43 
44 namespace http
45 {
46 
47 class Request;
48 class Reply;
49 
50 class Responder
51 {
52  public:
53  explicit Responder(Service& service)
54  : _service(service)
55  { }
56 
57  virtual ~Responder() { }
58 
59  virtual void beginRequest(net::TcpSocket& socket, std::istream& in, Request& request);
60  virtual std::size_t readBody(std::istream&);
61  virtual void reply(std::ostream&, Request& request, Reply& reply) = 0;
62  virtual void replyError(std::ostream&, Request& request, Reply& reply, const std::exception& ex);
63 
64  void release() { _service.doReleaseResponder(this); }
65 
66  private:
67  Service& _service;
68  Request* _request;
69 };
70 
71 } // namespace http
72 
73 } // namespace cxxtools
74 
75 #endif