src/ex_filter_frontend_net.cpp

   1 /* $Id: ex_filter_frontend_net.cpp,v 1.16 2005-10-30 17:13:36 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_log.hpp"
  21
  22 #include "router_chain.hpp"
  23 #include "session.hpp"
  24 #include "package.hpp"
  25
  26 class HTTPFilter: public yp2::filter::Base {
  27 public:
  28     void process(yp2::Package & package) const {
  29         if (package.session().is_closed())
  30         {
  31             // std::cout << "Got Close.\n";
  32         }
  33
  34         Z_GDU *gdu = package.request().get();
  35         if (gdu && gdu->which == Z_GDU_HTTP_Request)
  36         {
  37             yp2::odr odr;
  38             Z_GDU *gdu = z_get_HTTP_Response(odr, 200);
  39             Z_HTTP_Response *http_res = gdu->u.HTTP_Response;
  40
  41             z_HTTP_header_add(odr, &http_res->headers,
  42                               "Content-Type", "text/plain");
  43
  44             http_res->content_buf =
  45                 odr_strdup(odr, "Welcome to YP2");
  46             http_res->content_len = strlen(http_res->content_buf);
  47
  48             package.response() = gdu;
  49         }
  50         return package.move();
  51     };
  52     const std::string type() const {
  53         return "HTTPFilter";
  54     };
  55 };
  56
  57 int main(int argc, char **argv)
  58 {
  59     try
  60     {
  61         po::options_description desc("Allowed options");
  62         desc.add_options()
  63             ("help", "produce help message")
  64             ("duration", po::value<int>(),
  65              "number of seconds for server to exist")
  66             ("port", po::value< std::vector<std::string> >(), "listener port")
  67             ;
  68
  69         po::positional_options_description p;
  70         p.add("port", -1);
  71
  72         po::variables_map vm;
  73         po::store(po::command_line_parser(argc, argv).
  74                   options(desc).positional(p).run(), vm);
  75         po::notify(vm);
  76
  77         if (vm.count("help")) {
  78             std::cout << desc << "\n";
  79             return 1;
  80         }
  81
  82         if (vm.count("port"))
  83         {
  84             std::vector<std::string> ports =
  85                 vm["port"].as< std::vector<std::string> >();
  86
  87             for (size_t i = 0; i<ports.size(); i++)
  88                 std::cout << "port " << i << " " << ports[i] << "\n";
  89
  90             yp2::RouterChain router;
  91
  92             // put frontend filter in router
  93             yp2::filter::FrontendNet filter_front;
  94             filter_front.ports() = ports;
  95
  96             // 0=no time, >0 timeout in seconds
  97             if (vm.count("duration")) {
  98                 filter_front.listen_duration() = vm["duration"].as<int>();
  99             }
 100             router.append(filter_front);
 101
 102             // put log filter in router
 103             yp2::filter::Log filter_log_front("FRONT");
 104             router.append(filter_log_front);
 105
 106             // put Virt db filter in router
 107             yp2::filter::Virt_db filter_virt_db;
 108             filter_virt_db.add_map_db2vhost("Default", "indexdata.dk/gils");
 109             filter_virt_db.add_map_db2vhost("Local", "localhost:9100/Default");
 110
 111             router.append(filter_virt_db);
 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  */