src/metaproxy_prog.cpp

   1 /* This file is part of Metaproxy.
   2    Copyright (C) 2005-2010 Index Data
   3
   4 Metaproxy is free software; you can redistribute it and/or modify it under
   5 the terms of the GNU General Public License as published by the Free
   6 Software Foundation; either version 2, or (at your option) any later
   7 version.
   8
   9 Metaproxy is distributed in the hope that it will be useful, but WITHOUT ANY
  10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17 */
  18
  19 #include "config.hpp"
  20
  21 #include <yaz/log.h>
  22 #include <yaz/options.h>
  23 #include <yaz/daemon.h>
  24
  25 #include <yaz/sc.h>
  26 #include <iostream>
  27 #include <stdexcept>
  28 #include <libxml/xinclude.h>
  29
  30 #include <metaproxy/filter.hpp>
  31 #include <metaproxy/package.hpp>
  32 #include "router_flexml.hpp"
  33 #include "factory_static.hpp"
  34
  35 #if HAVE_UNISTD_H
  36 #include <unistd.h>
  37 #endif
  38 #include <signal.h>
  39 #ifdef WIN32
  40 #include <direct.h>
  41 #include <io.h>
  42 #include <process.h>
  43 #endif
  44
  45 namespace mp = metaproxy_1;
  46
  47 mp::RouterFleXML *routerp = 0;
  48
  49 static void sig_term_handler(int s)
  50 {
  51     if (routerp)
  52     {
  53         delete routerp;
  54     }
  55     exit(0);
  56 }
  57
  58 static void handler(void *data)
  59 {
  60     routerp = (mp::RouterFleXML*) data;
  61
  62     signal(SIGTERM, sig_term_handler);
  63     mp::Package pack;
  64     pack.router(*routerp).move();
  65 }
  66
  67 static int sc_main(
  68     yaz_sc_t s,
  69     int argc, char **argv)
  70 {
  71     try
  72     {
  73         const char *fname = 0;
  74         int ret;
  75         char *arg;
  76         unsigned mode = 0;
  77         const char *pidfile = 0;
  78         const char *uid = 0;
  79
  80         while ((ret = options("c{config}:Dh{help}l:p:u:V{version}w:X",
  81                               argv, argc, &arg)) != -2)
  82         {
  83             switch (ret)
  84             {
  85             case 'c':
  86                 fname = arg;
  87                 break;
  88             case 'D':
  89                 mode = YAZ_DAEMON_FORK|YAZ_DAEMON_KEEPALIVE;
  90                 break;
  91             case 'h':
  92                 std::cerr << "metaproxy\n"
  93                     " -h|--help     help\n"
  94                     " -V|--version  version\n"
  95                     " -c|--config f config filename\n"
  96                     " -D            daemon and keepalive operation\n"
  97                     " -l f          log file f\n"
  98                     " -p f          pid file f\n"
  99                     " -u id         change uid to id\n"
 100                     " -w dir        changes working directory to dir\n"
 101                     " -X            debug mode (no fork/daemon mode)\n"
 102 #ifdef WIN32
 103                     " -install      install windows service\n"
 104                     " -remove       remove windows service\n"
 105 #endif
 106
 107                           << std::endl;
 108                 break;
 109             case 'l':
 110                 yaz_log_init_file(arg);
 111                 break;
 112             case 'p':
 113                 pidfile = arg;
 114                 break;
 115             case 'u':
 116                 uid = arg;
 117                 break;
 118             case 'V':
 119                 std::cout << VERSION "\n";
 120                 return 0;
 121                 break;
 122             case 'w':
 123                 if (
 124 #ifdef WIN32
 125                     _chdir(arg)
 126 #else
 127                     chdir(arg)
 128 #endif
 129                    )
 130                 {
 131                     std::cerr << "chdir " << arg << " failed" << std::endl;
 132                     return 1;
 133                 }
 134             case 'X':
 135                 mode = YAZ_DAEMON_DEBUG;
 136                 break;
 137             case -1:
 138                 std::cerr << "bad option: " << arg << std::endl;
 139                 return 1;
 140             }
 141         }
 142         if (!fname)
 143         {
 144             std::cerr << "No configuration given; use -h for help\n";
 145             return 1;
 146         }
 147
 148         yaz_log(YLOG_LOG, "Metaproxy " VERSION " started");
 149         xmlDocPtr doc = xmlReadFile(fname,
 150                                     NULL,
 151                                     XML_PARSE_XINCLUDE + XML_PARSE_NOBLANKS
 152                                     + XML_PARSE_NSCLEAN + XML_PARSE_NONET );
 153
 154         if (!doc)
 155         {
 156             yaz_log (YLOG_FATAL,"XML parsing failed");
 157             return 1;
 158         }
 159         // and perform Xinclude then
 160         int r = xmlXIncludeProcess(doc);
 161         if (r == -1)
 162         {
 163             yaz_log(YLOG_FATAL, "XInclude processing failed");
 164             return 1;
 165         }
 166         WRBUF base_path = wrbuf_alloc();
 167         const char *last_p = strrchr(fname,
 168 #ifdef WIN32
 169                                      '\\'
 170 #else
 171                                      '/'
 172 #endif
 173             );
 174         if (last_p)
 175             wrbuf_write(base_path, fname, last_p - fname);
 176
 177         mp::FactoryStatic factory;
 178         mp::RouterFleXML *router =
 179             new mp::RouterFleXML(doc, factory, false, wrbuf_cstr(base_path));
 180         wrbuf_destroy(base_path);
 181
 182         yaz_sc_running(s);
 183
 184         yaz_daemon("metaproxy", mode, handler, router, pidfile, uid);
 185     }
 186     catch (std::logic_error &e) {
 187         yaz_log (YLOG_FATAL,"std::logic error: %s" , e.what() );
 188         return 1;
 189     }
 190     catch (std::runtime_error &e) {
 191         yaz_log(YLOG_FATAL, "std::runtime error: %s" , e.what() );
 192         return 1;
 193     }
 194     catch ( ... ) {
 195         yaz_log(YLOG_FATAL, "Unknown Exception");
 196         return 1;
 197     }
 198     return 0;
 199 }
 200
 201 static void sc_stop(yaz_sc_t s)
 202 {
 203     return;
 204 }
 205
 206 int main(int argc, char **argv)
 207 {
 208     int ret;
 209     yaz_sc_t s = yaz_sc_create("metaproxy", "metaproxy");
 210
 211     ret = yaz_sc_program(s, argc, argv, sc_main, sc_stop);
 212
 213     yaz_sc_destroy(&s);
 214     exit(ret);
 215 }
 216
 217
 218
 219 /*
 220  * Local variables:
 221  * c-basic-offset: 4
 222  * c-file-style: "Stroustrup"
 223  * indent-tabs-mode: nil
 224  * End:
 225  * vim: shiftwidth=4 tabstop=8 expandtab
 226  */
 227