senf/Utils/Termlib/telnetServer.cc

   1 // $Id$
   2 //
   3 // Copyright (C) 2008
   4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
   5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
   6 //     Stefan Bund <g0dil@berlios.de>
   7 //
   8 // This program is free software; you can redistribute it and/or modify
   9 // it under the terms of the GNU General Public License as published by
  10 // the Free Software Foundation; either version 2 of the License, or
  11 // (at your option) any later version.
  12 //
  13 // This program is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License
  19 // along with this program; if not, write to the
  20 // Free Software Foundation, Inc.,
  21 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22
  23 /** \file
  24     \brief telnetServer non-inline non-template implementation */
  25
  26 //#include "telnetServer.hh"
  27 //#include "telnetServer.ih"
  28
  29 // Custom includes
  30 #include <boost/bind.hpp>
  31 #include <senf/Utils/membind.hh>
  32 #include <senf/Scheduler/Scheduler.hh>
  33 #include <senf/Utils/Logger.hh>
  34 #include <senf/Socket/Protocols/INet.hh>
  35 #include "TelnetTerminal.hh"
  36 #include "Editor.hh"
  37
  38 //#include "telnetServer.mpp"
  39 #define prefix_
  40 //-/////////////////////////////////////////////////////////////////////////////////////////////////
  41
  42 namespace {
  43
  44     class MyTelnet
  45         : public senf::term::TelnetTerminal
  46     {
  47     public:
  48         explicit MyTelnet(Handle handle)
  49             : senf::term::BaseTelnetProtocol (handle),
  50               editor_ (*this, senf::membind(&MyTelnet::executeLine, this))
  51             {
  52                 editor_.prompt("myTelnet-with-an-endlesssly-long-prompt$");
  53                 editor_.defineKey(senf::term::KeyParser::Ctrl('D'),
  54                                   senf::membind(&MyTelnet::deleteCharOrExit, this));
  55             }
  56
  57         void deleteCharOrExit(senf::term::LineEditor & editor)
  58             {
  59                 if (editor.text().empty()) {
  60                     exit();
  61                 }
  62                 else
  63                     senf::term::bindings::deleteChar(editor);
  64             }
  65
  66         void exit()
  67             {
  68                 handle().facet<senf::TCPSocketProtocol>().shutdown(senf::TCPSocketProtocol::ShutRD);
  69             }
  70
  71         virtual void v_setupFailed()
  72             {
  73                 SENF_LOG(("Terminal setup failed"));
  74                 exit();
  75             }
  76
  77         virtual void v_eof()
  78             {
  79                 SENF_LOG(("EOF"));
  80                 delete this;
  81             }
  82
  83         void executeLine(std::string const & text)
  84             {
  85                 SENF_LOG(("Execute line: " << text));
  86                 editor_.show();
  87             }
  88
  89     private:
  90         senf::term::LineEditor editor_;
  91     };
  92
  93     typedef senf::TCPv4ServerSocketHandle ServerHandle;
  94     typedef ServerHandle::ClientHandle ClientHandle;
  95
  96     void connect(ServerHandle handle, int events)
  97     {
  98         if (events != senf::scheduler::FdEvent::EV_READ) {
  99             senf::scheduler::terminate();
 100             return;
 101         }
 102         ClientHandle client (handle.accept());
 103         SENF_LOG(("new client ..."));
 104         try {
 105             new MyTelnet (client);
 106         }
 107         catch (std::exception & ex) {
 108             SENF_LOG(("Client open failed: " << ex.what()));
 109         }
 110         catch (...) {
 111             SENF_LOG(("Client open failed: unknown exception"));
 112         }
 113     }
 114
 115 }
 116
 117 int main(int argc, char const ** argv)
 118 {
 119     senf::log::ConsoleTarget::instance().timeFormat("");
 120
 121     ServerHandle server (ServerHandle::Address("127.0.0.1:22344"));
 122     senf::scheduler::FdEvent serverEvent ("telnetServer", boost::bind(&connect, server, _1),
 123                                           server, senf::scheduler::FdEvent::EV_READ);
 124     SENF_LOG(("Server started at " << server.local()));
 125
 126     senf::scheduler::process();
 127
 128     return 0;
 129 }
 130
 131 //-/////////////////////////////////////////////////////////////////////////////////////////////////
 132 #undef prefix_
 133 //#include "telnetServer.mpp"
 134
 135 \f
 136 // Local Variables:
 137 // mode: c++
 138 // fill-column: 100
 139 // comment-column: 40
 140 // c-file-style: "senf"
 141 // indent-tabs-mode: nil
 142 // ispell-local-dictionary: "american"
 143 // compile-command: "scons -u telnetServer"
 144 // End: