HTTPResponse.h

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00001 
00002 // -*- mode: c++; c-basic-offset:4 -*-
00003 
00004 // This file is part of libdap, A C++ implementation of the OPeNDAP Data
00005 // Access Protocol.
00006 
00007 // Copyright (c) 2002,2003 OPeNDAP, Inc.
00008 // Author: James Gallagher <jgallagher@opendap.org>
00009 //
00010 // This library is free software; you can redistribute it and/or
00011 // modify it under the terms of the GNU Lesser General Public
00012 // License as published by the Free Software Foundation; either
00013 // version 2.1 of the License, or (at your option) any later version.
00014 //
00015 // This library is distributed in the hope that it will be useful,
00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00023 //
00024 // You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
00025 
00026 #ifndef http_response_h
00027 #define http_response_h
00028 
00029 #include <cstdio>
00030 #include <string>
00031 #include <iostream>
00032 #include <algorithm>
00033 #include <iterator>
00034 
00035 #ifndef response_h
00036 #include "Response.h"
00037 #endif
00038 
00039 #ifndef _debug_h
00040 #include "debug.h"
00041 #endif
00042 
00043 namespace libdap
00044 {
00045 
00046 extern int dods_keep_temps; // defined in HTTPConnect.cc
00047 extern void close_temp(FILE *s, const string &name);
00048 
00055 class HTTPResponse : public Response
00056 {
00057 private:
00058     vector<string> *d_headers; // Response headers
00059     string d_file;  // Temp file that holds response body
00060 
00061 protected:
00064     HTTPResponse()
00065     {}
00066     HTTPResponse(const HTTPResponse &rs) : Response(rs)
00067     {}
00068     HTTPResponse &operator=(const HTTPResponse &)
00069     {
00070         throw InternalErr(__FILE__, __LINE__, "Unimplemented assignment");
00071     }
00073 
00074 public:
00091     HTTPResponse(FILE *s, int status, vector<string> *h, const string &temp_file)
00092             : Response(s, status), d_headers(h), d_file(temp_file)
00093     {
00094         DBG(cerr << "Headers: " << endl);
00095         DBGN(copy(d_headers->begin(), d_headers->end(),
00096                   ostream_iterator<string>(cerr, "\n")));
00097         DBGN(cerr << "end of headers." << endl);
00098     }
00099 
00103     virtual ~HTTPResponse()
00104     {
00105         DBG(cerr << "Freeing HTTPConnect resources (" + d_file + ")... ");
00106 
00107         if (!dods_keep_temps && !d_file.empty()) {
00108             close_temp(get_stream(), d_file);
00109             set_stream(0);
00110         }
00111 
00112         delete d_headers; d_headers = 0;
00113 
00114         DBGN(cerr << endl);
00115     }
00118     virtual vector<string> *get_headers() const
00119     {
00120         return d_headers;
00121     }
00123 
00126     virtual void set_headers(vector<string> *h)
00127     {
00128         d_headers = h;
00129     }
00131 };
00132 
00133 } // namespace libdap
00134 
00135 #endif // http_response_h

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