src/ex_filter_frontend_net.cpp

   1 /* $Id: ex_filter_frontend_net.cpp,v 1.18 2005-11-14 23:35:22 adam Exp $
   2    Copyright (c) 2005, Index Data.
   3
   4 %LICENSE%
   5  */
   6
   7 #include <cstdlib>
   8 #include <iostream>
   9 #include <stdexcept>
  10
  11 #include <boost/program_options.hpp>
  12 namespace po = boost::program_options;
  13
  14 #include "config.hpp"
  15
  16 #include "util.hpp"
  17 #include "filter_frontend_net.hpp"
  18 #include "filter_z3950_client.hpp"
  19 #include "filter_virt_db.hpp"
  20 #include "filter_session_shared.hpp"
  21 #include "filter_log.hpp"
  22
  23 #include "router_chain.hpp"
  24 #include "session.hpp"
  25 #include "package.hpp"
  26
  27 class HTTPFilter: public yp2::filter::Base {
  28 public:
  29     void process(yp2::Package & package) const {
  30         if (package.session().is_closed())
  31         {
  32             // std::cout << "Got Close.\n";
  33         }
  34
  35         Z_GDU *gdu = package.request().get();
  36         if (gdu && gdu->which == Z_GDU_HTTP_Request)
  37         {
  38             yp2::odr odr;
  39             Z_GDU *gdu = z_get_HTTP_Response(odr, 200);
  40             Z_HTTP_Response *http_res = gdu->u.HTTP_Response;
  41
  42             z_HTTP_header_add(odr, &http_res->headers,
  43                               "Content-Type", "text/plain");
  44
  45             http_res->content_buf =
  46                 odr_strdup(odr, "Welcome to YP2");
  47             http_res->content_len = strlen(http_res->content_buf);
  48
  49             package.response() = gdu;
  50         }
  51         return package.move();
  52     };
  53 };
  54
  55 int main(int argc, char **argv)
  56 {
  57     try
  58     {
  59         po::options_description desc("Allowed options");
  60         desc.add_options()
  61             ("help", "produce help message")
  62             ("duration", po::value<int>(),
  63              "number of seconds for server to exist")
  64             ("port", po::value< std::vector<std::string> >(), "listener port")
  65             ;
  66
  67         po::positional_options_description p;
  68         p.add("port", -1);
  69
  70         po::variables_map vm;
  71         po::store(po::command_line_parser(argc, argv).
  72                   options(desc).positional(p).run(), vm);
  73         po::notify(vm);
  74
  75         if (vm.count("help")) {
  76             std::cout << desc << "\n";
  77             return 1;
  78         }
  79
  80         if (vm.count("port"))
  81         {
  82             std::vector<std::string> ports =
  83                 vm["port"].as< std::vector<std::string> >();
  84
  85             for (size_t i = 0; i<ports.size(); i++)
  86                 std::cout << "port " << i << " " << ports[i] << "\n";
  87
  88             yp2::RouterChain router;
  89
  90             // put frontend filter in router
  91             yp2::filter::FrontendNet filter_front;
  92             filter_front.ports() = ports;
  93
  94             // 0=no time, >0 timeout in seconds
  95             if (vm.count("duration")) {
  96                 filter_front.listen_duration() = vm["duration"].as<int>();
  97             }
  98             router.append(filter_front);
  99
 100             // put log filter in router
 101             yp2::filter::Log filter_log_front("FRONT");
 102             router.append(filter_log_front);
 103
 104             // put Virt db filter in router
 105             yp2::filter::Virt_db filter_virt_db;
 106             filter_virt_db.add_map_db2vhost("gils", "indexdata.dk/gils");
 107             filter_virt_db.add_map_db2vhost("Default", "localhost:9100/Default");
 108 //          router.append(filter_virt_db);
 109
 110             yp2::filter::Session_shared filter_session_shared;
 111             router.append(filter_session_shared);
 112
 113             yp2::filter::Log filter_log_back("BACK");
 114             router.append(filter_log_back);
 115
 116             // put HTTP backend filter in router
 117             HTTPFilter filter_init;
 118             router.append(filter_init);
 119
 120             // put Z39.50 backend filter in router
 121             yp2::filter::Z3950Client z3950_client;
 122             router.append(z3950_client);
 123
 124             yp2::Session session;
 125             yp2::Origin origin;
 126             yp2::Package pack(session, origin);
 127
 128             pack.router(router).move();
 129         }
 130     }
 131     catch ( ... ) {
 132         std::cerr << "unknown exception\n";
 133         std::exit(1);
 134     }
 135     std::exit(0);
 136 }
 137
 138 /*
 139  * Local variables:
 140  * c-basic-offset: 4
 141  * indent-tabs-mode: nil
 142  * c-file-style: "stroustrup"
 143  * End:
 144  * vim: shiftwidth=4 tabstop=8 expandtab
 145  */