src/main.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 // This would get rid of the console window
  21 //#pragma comment(linker, "/subsystem:windows /ENTRY:mainCRTStartup")
  22
  23 #include "irrlicht.h" // createDevice
  24
  25 #include "mainmenumanager.h"
  26 #include "irrlichttypes_extrabloated.h"
  27 #include "debug.h"
  28 #include "unittest/test.h"
  29 #include "server.h"
  30 #include "filesys.h"
  31 #include "version.h"
  32 #include "guiMainMenu.h"
  33 #include "game.h"
  34 #include "defaultsettings.h"
  35 #include "gettext.h"
  36 #include "log.h"
  37 #include "quicktune.h"
  38 #include "httpfetch.h"
  39 #include "guiEngine.h"
  40 #include "map.h"
  41 #include "player.h"
  42 #include "mapsector.h"
  43 #include "fontengine.h"
  44 #include "gameparams.h"
  45 #include "database.h"
  46 #include "config.h"
  47 #if USE_CURSES
  48         #include "terminal_chat_console.h"
  49 #endif
  50 #ifndef SERVER
  51 #include "client/clientlauncher.h"
  52 #endif
  53
  54 #ifdef HAVE_TOUCHSCREENGUI
  55         #include "touchscreengui.h"
  56 #endif
  57
  58 #if !defined(SERVER) && \
  59         (IRRLICHT_VERSION_MAJOR == 1) && \
  60         (IRRLICHT_VERSION_MINOR == 8) && \
  61         (IRRLICHT_VERSION_REVISION == 2)
  62         #error "Irrlicht 1.8.2 is known to be broken - please update Irrlicht to version >= 1.8.3"
  63 #endif
  64
  65 #define DEBUGFILE "debug.txt"
  66 #define DEFAULT_SERVER_PORT 30000
  67
  68 typedef std::map<std::string, ValueSpec> OptionList;
  69
  70 /**********************************************************************
  71  * Private functions
  72  **********************************************************************/
  73
  74 static bool get_cmdline_opts(int argc, char *argv[], Settings *cmd_args);
  75 static void set_allowed_options(OptionList *allowed_options);
  76
  77 static void print_help(const OptionList &allowed_options);
  78 static void print_allowed_options(const OptionList &allowed_options);
  79 static void print_version();
  80 static void print_worldspecs(const std::vector<WorldSpec> &worldspecs,
  81                                                          std::ostream &os);
  82 static void print_modified_quicktune_values();
  83
  84 static void list_game_ids();
  85 static void list_worlds();
  86 static void setup_log_params(const Settings &cmd_args);
  87 static bool create_userdata_path();
  88 static bool init_common(const Settings &cmd_args, int argc, char *argv[]);
  89 static void startup_message();
  90 static bool read_config_file(const Settings &cmd_args);
  91 static void init_log_streams(const Settings &cmd_args);
  92
  93 static bool game_configure(GameParams *game_params, const Settings &cmd_args);
  94 static void game_configure_port(GameParams *game_params, const Settings &cmd_args);
  95
  96 static bool game_configure_world(GameParams *game_params, const Settings &cmd_args);
  97 static bool get_world_from_cmdline(GameParams *game_params, const Settings &cmd_args);
  98 static bool get_world_from_config(GameParams *game_params, const Settings &cmd_args);
  99 static bool auto_select_world(GameParams *game_params);
 100 static std::string get_clean_world_path(const std::string &path);
 101
 102 static bool game_configure_subgame(GameParams *game_params, const Settings &cmd_args);
 103 static bool get_game_from_cmdline(GameParams *game_params, const Settings &cmd_args);
 104 static bool determine_subgame(GameParams *game_params);
 105
 106 static bool run_dedicated_server(const GameParams &game_params, const Settings &cmd_args);
 107 static bool migrate_database(const GameParams &game_params, const Settings &cmd_args);
 108
 109 /**********************************************************************/
 110
 111 /*
 112         gettime.h implementation
 113 */
 114
 115 #ifdef SERVER
 116
 117 u32 getTimeMs()
 118 {
 119         /* Use imprecise system calls directly (from porting.h) */
 120         return porting::getTime(PRECISION_MILLI);
 121 }
 122
 123 u32 getTime(TimePrecision prec)
 124 {
 125         return porting::getTime(prec);
 126 }
 127
 128 #endif
 129
 130 FileLogOutput file_log_output;
 131
 132 static OptionList allowed_options;
 133
 134 int main(int argc, char *argv[])
 135 {
 136         int retval;
 137
 138         debug_set_exception_handler();
 139
 140         g_logger.registerThread("Main");
 141         g_logger.addOutputMaxLevel(&stderr_output, LL_ACTION);
 142
 143         Settings cmd_args;
 144         bool cmd_args_ok = get_cmdline_opts(argc, argv, &cmd_args);
 145         if (!cmd_args_ok
 146                         || cmd_args.getFlag("help")
 147                         || cmd_args.exists("nonopt1")) {
 148                 print_help(allowed_options);
 149                 return cmd_args_ok ? 0 : 1;
 150         }
 151
 152         if (cmd_args.getFlag("version")) {
 153                 print_version();
 154                 return 0;
 155         }
 156
 157         setup_log_params(cmd_args);
 158
 159         porting::signal_handler_init();
 160
 161 #ifdef __ANDROID__
 162         porting::initAndroid();
 163         porting::initializePathsAndroid();
 164 #else
 165         porting::initializePaths();
 166 #endif
 167
 168         if (!create_userdata_path()) {
 169                 errorstream << "Cannot create user data directory" << std::endl;
 170                 return 1;
 171         }
 172
 173         // Initialize debug stacks
 174         DSTACK(FUNCTION_NAME);
 175
 176         // Debug handler
 177         BEGIN_DEBUG_EXCEPTION_HANDLER
 178
 179         // List gameids if requested
 180         if (cmd_args.exists("gameid") && cmd_args.get("gameid") == "list") {
 181                 list_game_ids();
 182                 return 0;
 183         }
 184
 185         // List worlds if requested
 186         if (cmd_args.exists("world") && cmd_args.get("world") == "list") {
 187                 list_worlds();
 188                 return 0;
 189         }
 190
 191         if (!init_common(cmd_args, argc, argv))
 192                 return 1;
 193
 194 #ifndef __ANDROID__
 195         // Run unit tests
 196         if (cmd_args.getFlag("run-unittests")) {
 197                 return run_tests();
 198         }
 199 #endif
 200
 201         GameParams game_params;
 202 #ifdef SERVER
 203         game_params.is_dedicated_server = true;
 204 #else
 205         game_params.is_dedicated_server = cmd_args.getFlag("server");
 206 #endif
 207
 208         if (!game_configure(&game_params, cmd_args))
 209                 return 1;
 210
 211         sanity_check(!game_params.world_path.empty());
 212
 213         infostream << "Using commanded world path ["
 214                    << game_params.world_path << "]" << std::endl;
 215
 216         //Run dedicated server if asked to or no other option
 217         g_settings->set("server_dedicated",
 218                         game_params.is_dedicated_server ? "true" : "false");
 219
 220         if (game_params.is_dedicated_server)
 221                 return run_dedicated_server(game_params, cmd_args) ? 0 : 1;
 222
 223 #ifndef SERVER
 224         ClientLauncher launcher;
 225         retval = launcher.run(game_params, cmd_args) ? 0 : 1;
 226 #else
 227         retval = 0;
 228 #endif
 229
 230         // Update configuration file
 231         if (g_settings_path != "")
 232                 g_settings->updateConfigFile(g_settings_path.c_str());
 233
 234         print_modified_quicktune_values();
 235
 236         // Stop httpfetch thread (if started)
 237         httpfetch_cleanup();
 238
 239         END_DEBUG_EXCEPTION_HANDLER
 240
 241         return retval;
 242 }
 243
 244
 245 /*****************************************************************************
 246  * Startup / Init
 247  *****************************************************************************/
 248
 249
 250 static bool get_cmdline_opts(int argc, char *argv[], Settings *cmd_args)
 251 {
 252         set_allowed_options(&allowed_options);
 253
 254         return cmd_args->parseCommandLine(argc, argv, allowed_options);
 255 }
 256
 257 static void set_allowed_options(OptionList *allowed_options)
 258 {
 259         allowed_options->clear();
 260
 261         allowed_options->insert(std::make_pair("help", ValueSpec(VALUETYPE_FLAG,
 262                         _("Show allowed options"))));
 263         allowed_options->insert(std::make_pair("version", ValueSpec(VALUETYPE_FLAG,
 264                         _("Show version information"))));
 265         allowed_options->insert(std::make_pair("config", ValueSpec(VALUETYPE_STRING,
 266                         _("Load configuration from specified file"))));
 267         allowed_options->insert(std::make_pair("port", ValueSpec(VALUETYPE_STRING,
 268                         _("Set network port (UDP)"))));
 269         allowed_options->insert(std::make_pair("run-unittests", ValueSpec(VALUETYPE_FLAG,
 270                         _("Run the unit tests and exit"))));
 271         allowed_options->insert(std::make_pair("map-dir", ValueSpec(VALUETYPE_STRING,
 272                         _("Same as --world (deprecated)"))));
 273         allowed_options->insert(std::make_pair("world", ValueSpec(VALUETYPE_STRING,
 274                         _("Set world path (implies local game) ('list' lists all)"))));
 275         allowed_options->insert(std::make_pair("worldname", ValueSpec(VALUETYPE_STRING,
 276                         _("Set world by name (implies local game)"))));
 277         allowed_options->insert(std::make_pair("quiet", ValueSpec(VALUETYPE_FLAG,
 278                         _("Print to console errors only"))));
 279         allowed_options->insert(std::make_pair("info", ValueSpec(VALUETYPE_FLAG,
 280                         _("Print more information to console"))));
 281         allowed_options->insert(std::make_pair("verbose",  ValueSpec(VALUETYPE_FLAG,
 282                         _("Print even more information to console"))));
 283         allowed_options->insert(std::make_pair("trace", ValueSpec(VALUETYPE_FLAG,
 284                         _("Print enormous amounts of information to log and console"))));
 285         allowed_options->insert(std::make_pair("logfile", ValueSpec(VALUETYPE_STRING,
 286                         _("Set logfile path ('' = no logging)"))));
 287         allowed_options->insert(std::make_pair("gameid", ValueSpec(VALUETYPE_STRING,
 288                         _("Set gameid (\"--gameid list\" prints available ones)"))));
 289         allowed_options->insert(std::make_pair("migrate", ValueSpec(VALUETYPE_STRING,
 290                         _("Migrate from current map backend to another (Only works when using minetestserver or with --server)"))));
 291         allowed_options->insert(std::make_pair("terminal", ValueSpec(VALUETYPE_FLAG,
 292                         _("Feature an interactive terminal (Only works when using minetestserver or with --server)"))));
 293 #ifndef SERVER
 294         allowed_options->insert(std::make_pair("videomodes", ValueSpec(VALUETYPE_FLAG,
 295                         _("Show available video modes"))));
 296         allowed_options->insert(std::make_pair("speedtests", ValueSpec(VALUETYPE_FLAG,
 297                         _("Run speed tests"))));
 298         allowed_options->insert(std::make_pair("address", ValueSpec(VALUETYPE_STRING,
 299                         _("Address to connect to. ('' = local game)"))));
 300         allowed_options->insert(std::make_pair("random-input", ValueSpec(VALUETYPE_FLAG,
 301                         _("Enable random user input, for testing"))));
 302         allowed_options->insert(std::make_pair("server", ValueSpec(VALUETYPE_FLAG,
 303                         _("Run dedicated server"))));
 304         allowed_options->insert(std::make_pair("name", ValueSpec(VALUETYPE_STRING,
 305                         _("Set player name"))));
 306         allowed_options->insert(std::make_pair("password", ValueSpec(VALUETYPE_STRING,
 307                         _("Set password"))));
 308         allowed_options->insert(std::make_pair("go", ValueSpec(VALUETYPE_FLAG,
 309                         _("Disable main menu"))));
 310 #endif
 311
 312 }
 313
 314 static void print_help(const OptionList &allowed_options)
 315 {
 316         std::cout << _("Allowed options:") << std::endl;
 317         print_allowed_options(allowed_options);
 318 }
 319
 320 static void print_allowed_options(const OptionList &allowed_options)
 321 {
 322         for (OptionList::const_iterator i = allowed_options.begin();
 323                         i != allowed_options.end(); ++i) {
 324                 std::ostringstream os1(std::ios::binary);
 325                 os1 << "  --" << i->first;
 326                 if (i->second.type != VALUETYPE_FLAG)
 327                         os1 << _(" <value>");
 328
 329                 std::cout << padStringRight(os1.str(), 24);
 330
 331                 if (i->second.help != NULL)
 332                         std::cout << i->second.help;
 333
 334                 std::cout << std::endl;
 335         }
 336 }
 337
 338 static void print_version()
 339 {
 340         std::cout << PROJECT_NAME_C " " << g_version_hash
 341                   << " (" << porting::getPlatformName() << ")" << std::endl;
 342 #ifndef SERVER
 343         std::cout << "Using Irrlicht " << IRRLICHT_SDK_VERSION << std::endl;
 344 #endif
 345         std::cout << "Build info: " << g_build_info << std::endl;
 346 }
 347
 348 static void list_game_ids()
 349 {
 350         std::set<std::string> gameids = getAvailableGameIds();
 351         for (std::set<std::string>::const_iterator i = gameids.begin();
 352                         i != gameids.end(); ++i)
 353                 std::cout << (*i) <<std::endl;
 354 }
 355
 356 static void list_worlds()
 357 {
 358         std::cout << _("Available worlds:") << std::endl;
 359         std::vector<WorldSpec> worldspecs = getAvailableWorlds();
 360         print_worldspecs(worldspecs, std::cout);
 361 }
 362
 363 static void print_worldspecs(const std::vector<WorldSpec> &worldspecs,
 364                                                          std::ostream &os)
 365 {
 366         for (size_t i = 0; i < worldspecs.size(); i++) {
 367                 std::string name = worldspecs[i].name;
 368                 std::string path = worldspecs[i].path;
 369                 if (name.find(" ") != std::string::npos)
 370                         name = std::string("'") + name + "'";
 371                 path = std::string("'") + path + "'";
 372                 name = padStringRight(name, 14);
 373                 os << "  " << name << " " << path << std::endl;
 374         }
 375 }
 376
 377 static void print_modified_quicktune_values()
 378 {
 379         bool header_printed = false;
 380         std::vector<std::string> names = getQuicktuneNames();
 381
 382         for (u32 i = 0; i < names.size(); i++) {
 383                 QuicktuneValue val = getQuicktuneValue(names[i]);
 384                 if (!val.modified)
 385                         continue;
 386                 if (!header_printed) {
 387                         dstream << "Modified quicktune values:" << std::endl;
 388                         header_printed = true;
 389                 }
 390                 dstream << names[i] << " = " << val.getString() << std::endl;
 391         }
 392 }
 393
 394 static void setup_log_params(const Settings &cmd_args)
 395 {
 396         // Quiet mode, print errors only
 397         if (cmd_args.getFlag("quiet")) {
 398                 g_logger.removeOutput(&stderr_output);
 399                 g_logger.addOutputMaxLevel(&stderr_output, LL_ERROR);
 400         }
 401
 402         // If trace is enabled, enable logging of certain things
 403         if (cmd_args.getFlag("trace")) {
 404                 dstream << _("Enabling trace level debug output") << std::endl;
 405                 g_logger.setTraceEnabled(true);
 406                 dout_con_ptr = &verbosestream; // This is somewhat old
 407                 socket_enable_debug_output = true; // Sockets doesn't use log.h
 408         }
 409
 410         // In certain cases, output info level on stderr
 411         if (cmd_args.getFlag("info") || cmd_args.getFlag("verbose") ||
 412                         cmd_args.getFlag("trace") || cmd_args.getFlag("speedtests"))
 413                 g_logger.addOutput(&stderr_output, LL_INFO);
 414
 415         // In certain cases, output verbose level on stderr
 416         if (cmd_args.getFlag("verbose") || cmd_args.getFlag("trace"))
 417                 g_logger.addOutput(&stderr_output, LL_VERBOSE);
 418 }
 419
 420 static bool create_userdata_path()
 421 {
 422         bool success;
 423
 424 #ifdef __ANDROID__
 425         if (!fs::PathExists(porting::path_user)) {
 426                 success = fs::CreateDir(porting::path_user);
 427         } else {
 428                 success = true;
 429         }
 430         porting::copyAssets();
 431 #else
 432         // Create user data directory
 433         success = fs::CreateDir(porting::path_user);
 434 #endif
 435
 436         return success;
 437 }
 438
 439 static bool init_common(const Settings &cmd_args, int argc, char *argv[])
 440 {
 441         startup_message();
 442         set_default_settings(g_settings);
 443
 444         // Initialize sockets
 445         sockets_init();
 446         atexit(sockets_cleanup);
 447
 448         if (!read_config_file(cmd_args))
 449                 return false;
 450
 451         init_log_streams(cmd_args);
 452
 453         // Initialize random seed
 454         srand(time(0));
 455         mysrand(time(0));
 456
 457         // Initialize HTTP fetcher
 458         httpfetch_init(g_settings->getS32("curl_parallel_limit"));
 459
 460         init_gettext(porting::path_locale.c_str(),
 461                 g_settings->get("language"), argc, argv);
 462
 463         return true;
 464 }
 465
 466 static void startup_message()
 467 {
 468         infostream << PROJECT_NAME << " " << _("with")
 469                    << " SER_FMT_VER_HIGHEST_READ="
 470                << (int)SER_FMT_VER_HIGHEST_READ << ", "
 471                << g_build_info << std::endl;
 472 }
 473
 474 static bool read_config_file(const Settings &cmd_args)
 475 {
 476         // Path of configuration file in use
 477         sanity_check(g_settings_path == "");    // Sanity check
 478
 479         if (cmd_args.exists("config")) {
 480                 bool r = g_settings->readConfigFile(cmd_args.get("config").c_str());
 481                 if (!r) {
 482                         errorstream << "Could not read configuration from \""
 483                                     << cmd_args.get("config") << "\"" << std::endl;
 484                         return false;
 485                 }
 486                 g_settings_path = cmd_args.get("config");
 487         } else {
 488                 std::vector<std::string> filenames;
 489                 filenames.push_back(porting::path_user + DIR_DELIM + "minetest.conf");
 490                 // Legacy configuration file location
 491                 filenames.push_back(porting::path_user +
 492                                 DIR_DELIM + ".." + DIR_DELIM + "minetest.conf");
 493
 494 #if RUN_IN_PLACE
 495                 // Try also from a lower level (to aid having the same configuration
 496                 // for many RUN_IN_PLACE installs)
 497                 filenames.push_back(porting::path_user +
 498                                 DIR_DELIM + ".." + DIR_DELIM + ".." + DIR_DELIM + "minetest.conf");
 499 #endif
 500
 501                 for (size_t i = 0; i < filenames.size(); i++) {
 502                         bool r = g_settings->readConfigFile(filenames[i].c_str());
 503                         if (r) {
 504                                 g_settings_path = filenames[i];
 505                                 break;
 506                         }
 507                 }
 508
 509                 // If no path found, use the first one (menu creates the file)
 510                 if (g_settings_path == "")
 511                         g_settings_path = filenames[0];
 512         }
 513
 514         return true;
 515 }
 516
 517 static void init_log_streams(const Settings &cmd_args)
 518 {
 519 #if RUN_IN_PLACE
 520         std::string log_filename = DEBUGFILE;
 521 #else
 522         std::string log_filename = porting::path_user + DIR_DELIM + DEBUGFILE;
 523 #endif
 524         if (cmd_args.exists("logfile"))
 525                 log_filename = cmd_args.get("logfile");
 526
 527         g_logger.removeOutput(&file_log_output);
 528         std::string conf_loglev = g_settings->get("debug_log_level");
 529
 530         // Old integer format
 531         if (std::isdigit(conf_loglev[0])) {
 532                 warningstream << "Deprecated use of debug_log_level with an "
 533                         "integer value; please update your configuration." << std::endl;
 534                 static const char *lev_name[] =
 535                         {"", "error", "action", "info", "verbose"};
 536                 int lev_i = atoi(conf_loglev.c_str());
 537                 if (lev_i < 0 || lev_i >= (int)ARRLEN(lev_name)) {
 538                         warningstream << "Supplied invalid debug_log_level!"
 539                                 "  Assuming action level." << std::endl;
 540                         lev_i = 2;
 541                 }
 542                 conf_loglev = lev_name[lev_i];
 543         }
 544
 545         if (log_filename.empty() || conf_loglev.empty())  // No logging
 546                 return;
 547
 548         LogLevel log_level = Logger::stringToLevel(conf_loglev);
 549         if (log_level == LL_MAX) {
 550                 warningstream << "Supplied unrecognized debug_log_level; "
 551                         "using maximum." << std::endl;
 552         }
 553
 554         verbosestream << "log_filename = " << log_filename << std::endl;
 555
 556         file_log_output.open(log_filename.c_str());
 557         g_logger.addOutputMaxLevel(&file_log_output, log_level);
 558 }
 559
 560 static bool game_configure(GameParams *game_params, const Settings &cmd_args)
 561 {
 562         game_configure_port(game_params, cmd_args);
 563
 564         if (!game_configure_world(game_params, cmd_args)) {
 565                 errorstream << "No world path specified or found." << std::endl;
 566                 return false;
 567         }
 568
 569         game_configure_subgame(game_params, cmd_args);
 570
 571         return true;
 572 }
 573
 574 static void game_configure_port(GameParams *game_params, const Settings &cmd_args)
 575 {
 576         if (cmd_args.exists("port"))
 577                 game_params->socket_port = cmd_args.getU16("port");
 578         else
 579                 game_params->socket_port = g_settings->getU16("port");
 580
 581         if (game_params->socket_port == 0)
 582                 game_params->socket_port = DEFAULT_SERVER_PORT;
 583 }
 584
 585 static bool game_configure_world(GameParams *game_params, const Settings &cmd_args)
 586 {
 587         if (get_world_from_cmdline(game_params, cmd_args))
 588                 return true;
 589         if (get_world_from_config(game_params, cmd_args))
 590                 return true;
 591
 592         return auto_select_world(game_params);
 593 }
 594
 595 static bool get_world_from_cmdline(GameParams *game_params, const Settings &cmd_args)
 596 {
 597         std::string commanded_world = "";
 598
 599         // World name
 600         std::string commanded_worldname = "";
 601         if (cmd_args.exists("worldname"))
 602                 commanded_worldname = cmd_args.get("worldname");
 603
 604         // If a world name was specified, convert it to a path
 605         if (commanded_worldname != "") {
 606                 // Get information about available worlds
 607                 std::vector<WorldSpec> worldspecs = getAvailableWorlds();
 608                 bool found = false;
 609                 for (u32 i = 0; i < worldspecs.size(); i++) {
 610                         std::string name = worldspecs[i].name;
 611                         if (name == commanded_worldname) {
 612                                 dstream << _("Using world specified by --worldname on the "
 613                                         "command line") << std::endl;
 614                                 commanded_world = worldspecs[i].path;
 615                                 found = true;
 616                                 break;
 617                         }
 618                 }
 619                 if (!found) {
 620                         dstream << _("World") << " '" << commanded_worldname
 621                                 << _("' not available. Available worlds:") << std::endl;
 622                         print_worldspecs(worldspecs, dstream);
 623                         return false;
 624                 }
 625
 626                 game_params->world_path = get_clean_world_path(commanded_world);
 627                 return commanded_world != "";
 628         }
 629
 630         if (cmd_args.exists("world"))
 631                 commanded_world = cmd_args.get("world");
 632         else if (cmd_args.exists("map-dir"))
 633                 commanded_world = cmd_args.get("map-dir");
 634         else if (cmd_args.exists("nonopt0")) // First nameless argument
 635                 commanded_world = cmd_args.get("nonopt0");
 636
 637         game_params->world_path = get_clean_world_path(commanded_world);
 638         return commanded_world != "";
 639 }
 640
 641 static bool get_world_from_config(GameParams *game_params, const Settings &cmd_args)
 642 {
 643         // World directory
 644         std::string commanded_world = "";
 645
 646         if (g_settings->exists("map-dir"))
 647                 commanded_world = g_settings->get("map-dir");
 648
 649         game_params->world_path = get_clean_world_path(commanded_world);
 650
 651         return commanded_world != "";
 652 }
 653
 654 static bool auto_select_world(GameParams *game_params)
 655 {
 656         // No world was specified; try to select it automatically
 657         // Get information about available worlds
 658
 659         verbosestream << _("Determining world path") << std::endl;
 660
 661         std::vector<WorldSpec> worldspecs = getAvailableWorlds();
 662         std::string world_path;
 663
 664         // If there is only a single world, use it
 665         if (worldspecs.size() == 1) {
 666                 world_path = worldspecs[0].path;
 667                 dstream <<_("Automatically selecting world at") << " ["
 668                         << world_path << "]" << std::endl;
 669         // If there are multiple worlds, list them
 670         } else if (worldspecs.size() > 1 && game_params->is_dedicated_server) {
 671                 std::cerr << _("Multiple worlds are available.") << std::endl;
 672                 std::cerr << _("Please select one using --worldname <name>"
 673                                 " or --world <path>") << std::endl;
 674                 print_worldspecs(worldspecs, std::cerr);
 675                 return false;
 676         // If there are no worlds, automatically create a new one
 677         } else {
 678                 // This is the ultimate default world path
 679                 world_path = porting::path_user + DIR_DELIM + "worlds" +
 680                                 DIR_DELIM + "world";
 681                 infostream << "Creating default world at ["
 682                            << world_path << "]" << std::endl;
 683         }
 684
 685         assert(world_path != "");       // Post-condition
 686         game_params->world_path = world_path;
 687         return true;
 688 }
 689
 690 static std::string get_clean_world_path(const std::string &path)
 691 {
 692         const std::string worldmt = "world.mt";
 693         std::string clean_path;
 694
 695         if (path.size() > worldmt.size()
 696                         && path.substr(path.size() - worldmt.size()) == worldmt) {
 697                 dstream << _("Supplied world.mt file - stripping it off.") << std::endl;
 698                 clean_path = path.substr(0, path.size() - worldmt.size());
 699         } else {
 700                 clean_path = path;
 701         }
 702         return path;
 703 }
 704
 705
 706 static bool game_configure_subgame(GameParams *game_params, const Settings &cmd_args)
 707 {
 708         bool success;
 709
 710         success = get_game_from_cmdline(game_params, cmd_args);
 711         if (!success)
 712                 success = determine_subgame(game_params);
 713
 714         return success;
 715 }
 716
 717 static bool get_game_from_cmdline(GameParams *game_params, const Settings &cmd_args)
 718 {
 719         SubgameSpec commanded_gamespec;
 720
 721         if (cmd_args.exists("gameid")) {
 722                 std::string gameid = cmd_args.get("gameid");
 723                 commanded_gamespec = findSubgame(gameid);
 724                 if (!commanded_gamespec.isValid()) {
 725                         errorstream << "Game \"" << gameid << "\" not found" << std::endl;
 726                         return false;
 727                 }
 728                 dstream << _("Using game specified by --gameid on the command line")
 729                         << std::endl;
 730                 game_params->game_spec = commanded_gamespec;
 731                 return true;
 732         }
 733
 734         return false;
 735 }
 736
 737 static bool determine_subgame(GameParams *game_params)
 738 {
 739         SubgameSpec gamespec;
 740
 741         assert(game_params->world_path != "");  // Pre-condition
 742
 743         verbosestream << _("Determining gameid/gamespec") << std::endl;
 744         // If world doesn't exist
 745         if (game_params->world_path != ""
 746                         && !getWorldExists(game_params->world_path)) {
 747                 // Try to take gamespec from command line
 748                 if (game_params->game_spec.isValid()) {
 749                         gamespec = game_params->game_spec;
 750                         infostream << "Using commanded gameid [" << gamespec.id << "]" << std::endl;
 751                 } else { // Otherwise we will be using "minetest"
 752                         gamespec = findSubgame(g_settings->get("default_game"));
 753                         infostream << "Using default gameid [" << gamespec.id << "]" << std::endl;
 754                         if (!gamespec.isValid()) {
 755                                 errorstream << "Subgame specified in default_game ["
 756                                             << g_settings->get("default_game")
 757                                             << "] is invalid." << std::endl;
 758                                 return false;
 759                         }
 760                 }
 761         } else { // World exists
 762                 std::string world_gameid = getWorldGameId(game_params->world_path, false);
 763                 // If commanded to use a gameid, do so
 764                 if (game_params->game_spec.isValid()) {
 765                         gamespec = game_params->game_spec;
 766                         if (game_params->game_spec.id != world_gameid) {
 767                                 warningstream << "Using commanded gameid ["
 768                                             << gamespec.id << "]" << " instead of world gameid ["
 769                                             << world_gameid << "]" << std::endl;
 770                         }
 771                 } else {
 772                         // If world contains an embedded game, use it;
 773                         // Otherwise find world from local system.
 774                         gamespec = findWorldSubgame(game_params->world_path);
 775                         infostream << "Using world gameid [" << gamespec.id << "]" << std::endl;
 776                 }
 777         }
 778
 779         if (!gamespec.isValid()) {
 780                 errorstream << "Subgame [" << gamespec.id << "] could not be found."
 781                             << std::endl;
 782                 return false;
 783         }
 784
 785         game_params->game_spec = gamespec;
 786         return true;
 787 }
 788
 789
 790 /*****************************************************************************
 791  * Dedicated server
 792  *****************************************************************************/
 793 static bool run_dedicated_server(const GameParams &game_params, const Settings &cmd_args)
 794 {
 795         DSTACK("Dedicated server branch");
 796
 797         verbosestream << _("Using world path") << " ["
 798                       << game_params.world_path << "]" << std::endl;
 799         verbosestream << _("Using gameid") << " ["
 800                       << game_params.game_spec.id << "]" << std::endl;
 801
 802         // Bind address
 803         std::string bind_str = g_settings->get("bind_address");
 804         Address bind_addr(0, 0, 0, 0, game_params.socket_port);
 805
 806         if (g_settings->getBool("ipv6_server")) {
 807                 bind_addr.setAddress((IPv6AddressBytes*) NULL);
 808         }
 809         try {
 810                 bind_addr.Resolve(bind_str.c_str());
 811         } catch (ResolveError &e) {
 812                 infostream << "Resolving bind address \"" << bind_str
 813                            << "\" failed: " << e.what()
 814                            << " -- Listening on all addresses." << std::endl;
 815         }
 816         if (bind_addr.isIPv6() && !g_settings->getBool("enable_ipv6")) {
 817                 errorstream << "Unable to listen on "
 818                             << bind_addr.serializeString()
 819                             << L" because IPv6 is disabled" << std::endl;
 820                 return false;
 821         }
 822
 823         // Database migration
 824         if (cmd_args.exists("migrate"))
 825                 return migrate_database(game_params, cmd_args);
 826
 827         if (cmd_args.exists("terminal")) {
 828 #if USE_CURSES
 829                 bool name_ok = true;
 830                 std::string admin_nick = g_settings->get("name");
 831
 832                 name_ok = name_ok && !admin_nick.empty();
 833                 name_ok = name_ok && string_allowed(admin_nick, PLAYERNAME_ALLOWED_CHARS);
 834
 835                 if (!name_ok) {
 836                         if (admin_nick.empty()) {
 837                                 errorstream << "No name given for admin. "
 838                                         << "Please check your minetest.conf that it "
 839                                         << "contains a 'name = ' to your main admin account."
 840                                         << std::endl;
 841                         } else {
 842                                 errorstream << "Name for admin '"
 843                                         << admin_nick << "' is not valid. "
 844                                         << "Please check that it only contains allowed characters. "
 845                                         << "Valid characters are: " << PLAYERNAME_ALLOWED_CHARS_USER_EXPL
 846                                         << std::endl;
 847                         }
 848                         return false;
 849                 }
 850                 ChatInterface iface;
 851                 bool &kill = *porting::signal_handler_killstatus();
 852
 853                 try {
 854                         // Create server
 855                         Server server(game_params.world_path,
 856                                 game_params.game_spec, false, bind_addr.isIPv6(), &iface);
 857
 858                         g_term_console.setup(&iface, &kill, admin_nick);
 859
 860                         g_term_console.start();
 861
 862                         server.start(bind_addr);
 863                         // Run server
 864                         dedicated_server_loop(server, kill);
 865                 } catch (const ModError &e) {
 866                         g_term_console.stopAndWaitforThread();
 867                         errorstream << "ModError: " << e.what() << std::endl;
 868                         return false;
 869                 } catch (const ServerError &e) {
 870                         g_term_console.stopAndWaitforThread();
 871                         errorstream << "ServerError: " << e.what() << std::endl;
 872                         return false;
 873                 }
 874
 875                 // Tell the console to stop, and wait for it to finish,
 876                 // only then leave context and free iface
 877                 g_term_console.stop();
 878                 g_term_console.wait();
 879
 880                 g_term_console.clearKillStatus();
 881         } else {
 882 #else
 883                 errorstream << "Cmd arg --terminal passed, but "
 884                         << "compiled without ncurses. Ignoring." << std::endl;
 885         } {
 886 #endif
 887                 try {
 888                         // Create server
 889                         Server server(game_params.world_path, game_params.game_spec, false,
 890                                 bind_addr.isIPv6());
 891                         server.start(bind_addr);
 892
 893                         // Run server
 894                         bool &kill = *porting::signal_handler_killstatus();
 895                         dedicated_server_loop(server, kill);
 896
 897                 } catch (const ModError &e) {
 898                         errorstream << "ModError: " << e.what() << std::endl;
 899                         return false;
 900                 } catch (const ServerError &e) {
 901                         errorstream << "ServerError: " << e.what() << std::endl;
 902                         return false;
 903                 }
 904         }
 905
 906         return true;
 907 }
 908
 909 static bool migrate_database(const GameParams &game_params, const Settings &cmd_args)
 910 {
 911         std::string migrate_to = cmd_args.get("migrate");
 912         Settings world_mt;
 913         std::string world_mt_path = game_params.world_path + DIR_DELIM + "world.mt";
 914         if (!world_mt.readConfigFile(world_mt_path.c_str())) {
 915                 errorstream << "Cannot read world.mt!" << std::endl;
 916                 return false;
 917         }
 918         if (!world_mt.exists("backend")) {
 919                 errorstream << "Please specify your current backend in world.mt:"
 920                         << std::endl
 921                         << "    backend = {sqlite3|leveldb|redis|dummy}"
 922                         << std::endl;
 923                 return false;
 924         }
 925         std::string backend = world_mt.get("backend");
 926         if (backend == migrate_to) {
 927                 errorstream << "Cannot migrate: new backend is same"
 928                         << " as the old one" << std::endl;
 929                 return false;
 930         }
 931         Database *old_db = ServerMap::createDatabase(backend, game_params.world_path, world_mt),
 932                 *new_db = ServerMap::createDatabase(migrate_to, game_params.world_path, world_mt);
 933
 934         u32 count = 0;
 935         time_t last_update_time = 0;
 936         bool &kill = *porting::signal_handler_killstatus();
 937
 938         std::vector<v3s16> blocks;
 939         old_db->listAllLoadableBlocks(blocks);
 940         new_db->beginSave();
 941         for (std::vector<v3s16>::const_iterator it = blocks.begin(); it != blocks.end(); ++it) {
 942                 if (kill) return false;
 943
 944                 std::string data;
 945                 old_db->loadBlock(*it, &data);
 946                 if (!data.empty()) {
 947                         new_db->saveBlock(*it, data);
 948                 } else {
 949                         errorstream << "Failed to load block " << PP(*it) << ", skipping it." << std::endl;
 950                 }
 951                 if (++count % 0xFF == 0 && time(NULL) - last_update_time >= 1) {
 952                         std::cerr << " Migrated " << count << " blocks, "
 953                                 << (100.0 * count / blocks.size()) << "% completed.\r";
 954                         new_db->endSave();
 955                         new_db->beginSave();
 956                         last_update_time = time(NULL);
 957                 }
 958         }
 959         std::cerr << std::endl;
 960         new_db->endSave();
 961         delete old_db;
 962         delete new_db;
 963
 964         actionstream << "Successfully migrated " << count << " blocks" << std::endl;
 965         world_mt.set("backend", migrate_to);
 966         if (!world_mt.updateConfigFile(world_mt_path.c_str()))
 967                 errorstream << "Failed to update world.mt!" << std::endl;
 968         else
 969                 actionstream << "world.mt updated" << std::endl;
 970
 971         return true;
 972 }
 973