HTTPClient.H

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00001 /*!@file Devices/HTTPClient.H  HTTP client for interfacing with http type devices */
00002 
00003 // //////////////////////////////////////////////////////////////////// //
00004 // The iLab Neuromorphic Vision C++ Toolkit - Copyright (C) 2001 by the //
00005 // University of Southern California (USC) and the iLab at USC.         //
00006 // See http://iLab.usc.edu for information about this project.          //
00007 // //////////////////////////////////////////////////////////////////// //
00008 // Major portions of the iLab Neuromorphic Vision Toolkit are protected //
00009 // under the U.S. patent ``Computation of Intrinsic Perceptual Saliency //
00010 // in Visual Environments, and Applications'' by Christof Koch and      //
00011 // Laurent Itti, California Institute of Technology, 2001 (patent       //
00012 // pending; application number 09/912,225 filed July 23, 2001; see      //
00013 // http://pair.uspto.gov/cgi-bin/final/home.pl for current status).     //
00014 // //////////////////////////////////////////////////////////////////// //
00015 // This file is part of the iLab Neuromorphic Vision C++ Toolkit.       //
00016 //                                                                      //
00017 // The iLab Neuromorphic Vision C++ Toolkit is free software; you can   //
00018 // redistribute it and/or modify it under the terms of the GNU General  //
00019 // Public License as published by the Free Software Foundation; either  //
00020 // version 2 of the License, or (at your option) any later version.     //
00021 //                                                                      //
00022 // The iLab Neuromorphic Vision C++ Toolkit is distributed in the hope  //
00023 // that it will be useful, but WITHOUT ANY WARRANTY; without even the   //
00024 // implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      //
00025 // PURPOSE.  See the GNU General Public License for more details.       //
00026 //                                                                      //
00027 // You should have received a copy of the GNU General Public License    //
00028 // along with the iLab Neuromorphic Vision C++ Toolkit; if not, write   //
00029 // to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,   //
00030 // Boston, MA 02111-1307 USA.                                           //
00031 // //////////////////////////////////////////////////////////////////// //
00032 //
00033 // Primary maintainer for this file: Lior Elazary
00034 // $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/Devices/HTTPClient.H $
00035 // $Id: HTTPClient.H 12962 2010-03-06 02:13:53Z irock $
00036 //
00037 
00038 #ifndef __HTTPClient_H__
00039 #define __HTTPClient_H__
00040 
00041 #include "Component/ModelComponent.H"
00042 #include "Component/ModelParam.H"
00043 
00044 #include <fcntl.h>
00045 #include <stdio.h>
00046 #include <sys/stat.h>
00047 #include <sys/types.h>
00048 #include <termios.h>
00049 #include <unistd.h>
00050 #include <sys/socket.h>
00051 #include <arpa/inet.h>
00052 #include <stdlib.h>
00053 #include <netdb.h>
00054 
00055 //! Interface to a HTTPClient port
00056 /*! The socket will be open at start() time; see ModelComponent.H for
00057   details. */
00058 class HTTPClient : public ModelComponent {
00059 public:
00060   //! Constructor
00061   HTTPClient(OptionManager& mgr, const std::string& descrName = "HTTPClient Port",
00062          const std::string& tagName = "HTTPClientPort");
00063 
00064   //! destructor
00065   ~HTTPClient(void);
00066 
00067   //! write bytes from the port
00068   int read(void* buffer, const int nbytes);
00069 
00070   //! write bytes to the port
00071   int write(const void* buffer, const int nbytes);
00072 
00073   //! send request to the http server
00074   std::string sendGetRequest(const std::string& request);
00075 
00076   //! send Post data to the http server
00077   std::string sendPostRequest(const std::string& request, const char* data, long size);
00078 
00079 
00080   //! get data back
00081   std::string readData();
00082 
00083   //! Connect to the server
00084   void openConnection();
00085 
00086   //! Close the connection
00087   void closeConnection();
00088 
00089 protected:
00090 
00091   //! Resolve hostname to ip address
00092   std::string  getIPAddress(const std::string& hostName);
00093 
00094   OModelParam<std::string> itsHostName; //! The host to contact
00095   OModelParam<unsigned int> itsPort;      //!< The port to contact on
00096 
00097 
00098   //! open the port and get started
00099   void start1();
00100 
00101   //! close the port and get stopped
00102   void stop2();
00103 
00104 private:
00105   int itsSocket; // the socket to send/recv data on
00106   struct sockaddr_in * itsRemote; //the remove sockaddr
00107   bool itsConnected; //Are we connected to the server
00108 
00109 
00110 };
00111 
00112 #endif
00113 
00114 // ######################################################################
00115 /* So things look consistent in everyone's emacs... */
00116 /* Local Variables: */
00117 /* indent-tabs-mode: nil */
00118 /* End: */
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