src/script/lua_api/l_mainmenu.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 sapier
   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 #include "lua_api/l_mainmenu.h"
  21 #include "lua_api/l_internal.h"
  22 #include "common/c_content.h"
  23 #include "cpp_api/s_async.h"
  24 #include "scripting_mainmenu.h"
  25 #include "gui/guiEngine.h"
  26 #include "gui/guiMainMenu.h"
  27 #include "gui/guiKeyChangeMenu.h"
  28 #include "gui/guiPathSelectMenu.h"
  29 #include "version.h"
  30 #include "porting.h"
  31 #include "filesys.h"
  32 #include "convert_json.h"
  33 #include "content/content.h"
  34 #include "content/subgames.h"
  35 #include "serverlist.h"
  36 #include "mapgen/mapgen.h"
  37 #include "settings.h"
  38 #include "client/client.h"
  39 #include "client/renderingengine.h"
  40 #include "network/networkprotocol.h"
  41
  42
  43 /******************************************************************************/
  44 std::string ModApiMainMenu::getTextData(lua_State *L, std::string name)
  45 {
  46         lua_getglobal(L, "gamedata");
  47
  48         lua_getfield(L, -1, name.c_str());
  49
  50         if(lua_isnil(L, -1))
  51                 return "";
  52
  53         return luaL_checkstring(L, -1);
  54 }
  55
  56 /******************************************************************************/
  57 int ModApiMainMenu::getIntegerData(lua_State *L, std::string name,bool& valid)
  58 {
  59         lua_getglobal(L, "gamedata");
  60
  61         lua_getfield(L, -1, name.c_str());
  62
  63         if(lua_isnil(L, -1)) {
  64                 valid = false;
  65                 return -1;
  66                 }
  67
  68         valid = true;
  69         return luaL_checkinteger(L, -1);
  70 }
  71
  72 /******************************************************************************/
  73 int ModApiMainMenu::getBoolData(lua_State *L, std::string name,bool& valid)
  74 {
  75         lua_getglobal(L, "gamedata");
  76
  77         lua_getfield(L, -1, name.c_str());
  78
  79         if(lua_isnil(L, -1)) {
  80                 valid = false;
  81                 return false;
  82                 }
  83
  84         valid = true;
  85         return readParam<bool>(L, -1);
  86 }
  87
  88 /******************************************************************************/
  89 int ModApiMainMenu::l_update_formspec(lua_State *L)
  90 {
  91         GUIEngine* engine = getGuiEngine(L);
  92         sanity_check(engine != NULL);
  93
  94         if (engine->m_startgame)
  95                 return 0;
  96
  97         //read formspec
  98         std::string formspec(luaL_checkstring(L, 1));
  99
 100         if (engine->m_formspecgui != 0) {
 101                 engine->m_formspecgui->setForm(formspec);
 102         }
 103
 104         return 0;
 105 }
 106
 107 /******************************************************************************/
 108 int ModApiMainMenu::l_set_formspec_prepend(lua_State *L)
 109 {
 110         GUIEngine *engine = getGuiEngine(L);
 111         sanity_check(engine != NULL);
 112
 113         if (engine->m_startgame)
 114                 return 0;
 115
 116         std::string formspec(luaL_checkstring(L, 1));
 117         engine->setFormspecPrepend(formspec);
 118
 119         return 0;
 120 }
 121
 122 /******************************************************************************/
 123 int ModApiMainMenu::l_start(lua_State *L)
 124 {
 125         GUIEngine* engine = getGuiEngine(L);
 126         sanity_check(engine != NULL);
 127
 128         //update c++ gamedata from lua table
 129
 130         bool valid = false;
 131
 132         MainMenuData *data = engine->m_data;
 133
 134         data->selected_world = getIntegerData(L, "selected_world",valid) -1;
 135         data->simple_singleplayer_mode = getBoolData(L,"singleplayer",valid);
 136         data->do_reconnect = getBoolData(L, "do_reconnect", valid);
 137         if (!data->do_reconnect) {
 138                 data->name     = getTextData(L,"playername");
 139                 data->password = getTextData(L,"password");
 140                 data->address  = getTextData(L,"address");
 141                 data->port     = getTextData(L,"port");
 142         }
 143         data->serverdescription = getTextData(L,"serverdescription");
 144         data->servername        = getTextData(L,"servername");
 145
 146         //close menu next time
 147         engine->m_startgame = true;
 148         return 0;
 149 }
 150
 151 /******************************************************************************/
 152 int ModApiMainMenu::l_close(lua_State *L)
 153 {
 154         GUIEngine* engine = getGuiEngine(L);
 155         sanity_check(engine != NULL);
 156
 157         engine->m_kill = true;
 158         return 0;
 159 }
 160
 161 /******************************************************************************/
 162 int ModApiMainMenu::l_set_background(lua_State *L)
 163 {
 164         GUIEngine* engine = getGuiEngine(L);
 165         sanity_check(engine != NULL);
 166
 167         std::string backgroundlevel(luaL_checkstring(L, 1));
 168         std::string texturename(luaL_checkstring(L, 2));
 169
 170         bool tile_image = false;
 171         bool retval     = false;
 172         unsigned int minsize = 16;
 173
 174         if (!lua_isnone(L, 3)) {
 175                 tile_image = readParam<bool>(L, 3);
 176         }
 177
 178         if (!lua_isnone(L, 4)) {
 179                 minsize = lua_tonumber(L, 4);
 180         }
 181
 182         if (backgroundlevel == "background") {
 183                 retval |= engine->setTexture(TEX_LAYER_BACKGROUND, texturename,
 184                                 tile_image, minsize);
 185         }
 186
 187         if (backgroundlevel == "overlay") {
 188                 retval |= engine->setTexture(TEX_LAYER_OVERLAY, texturename,
 189                                 tile_image, minsize);
 190         }
 191
 192         if (backgroundlevel == "header") {
 193                 retval |= engine->setTexture(TEX_LAYER_HEADER,  texturename,
 194                                 tile_image, minsize);
 195         }
 196
 197         if (backgroundlevel == "footer") {
 198                 retval |= engine->setTexture(TEX_LAYER_FOOTER, texturename,
 199                                 tile_image, minsize);
 200         }
 201
 202         lua_pushboolean(L,retval);
 203         return 1;
 204 }
 205
 206 /******************************************************************************/
 207 int ModApiMainMenu::l_set_clouds(lua_State *L)
 208 {
 209         GUIEngine* engine = getGuiEngine(L);
 210         sanity_check(engine != NULL);
 211
 212         bool value = readParam<bool>(L,1);
 213
 214         engine->m_clouds_enabled = value;
 215
 216         return 0;
 217 }
 218
 219 /******************************************************************************/
 220 int ModApiMainMenu::l_get_textlist_index(lua_State *L)
 221 {
 222         // get_table_index accepts both tables and textlists
 223         return l_get_table_index(L);
 224 }
 225
 226 /******************************************************************************/
 227 int ModApiMainMenu::l_get_table_index(lua_State *L)
 228 {
 229         GUIEngine* engine = getGuiEngine(L);
 230         sanity_check(engine != NULL);
 231
 232         std::string tablename(luaL_checkstring(L, 1));
 233         GUITable *table = engine->m_menu->getTable(tablename);
 234         s32 selection = table ? table->getSelected() : 0;
 235
 236         if (selection >= 1)
 237                 lua_pushinteger(L, selection);
 238         else
 239                 lua_pushnil(L);
 240         return 1;
 241 }
 242
 243 /******************************************************************************/
 244 int ModApiMainMenu::l_get_worlds(lua_State *L)
 245 {
 246         std::vector<WorldSpec> worlds = getAvailableWorlds();
 247
 248         lua_newtable(L);
 249         int top = lua_gettop(L);
 250         unsigned int index = 1;
 251
 252         for (const WorldSpec &world : worlds) {
 253                 lua_pushnumber(L,index);
 254
 255                 lua_newtable(L);
 256                 int top_lvl2 = lua_gettop(L);
 257
 258                 lua_pushstring(L,"path");
 259                 lua_pushstring(L, world.path.c_str());
 260                 lua_settable(L, top_lvl2);
 261
 262                 lua_pushstring(L,"name");
 263                 lua_pushstring(L, world.name.c_str());
 264                 lua_settable(L, top_lvl2);
 265
 266                 lua_pushstring(L,"gameid");
 267                 lua_pushstring(L, world.gameid.c_str());
 268                 lua_settable(L, top_lvl2);
 269
 270                 lua_settable(L, top);
 271                 index++;
 272         }
 273         return 1;
 274 }
 275
 276 /******************************************************************************/
 277 int ModApiMainMenu::l_get_games(lua_State *L)
 278 {
 279         std::vector<SubgameSpec> games = getAvailableGames();
 280
 281         lua_newtable(L);
 282         int top = lua_gettop(L);
 283         unsigned int index = 1;
 284
 285         for (const SubgameSpec &game : games) {
 286                 lua_pushnumber(L, index);
 287                 lua_newtable(L);
 288                 int top_lvl2 = lua_gettop(L);
 289
 290                 lua_pushstring(L,  "id");
 291                 lua_pushstring(L,  game.id.c_str());
 292                 lua_settable(L,    top_lvl2);
 293
 294                 lua_pushstring(L,  "path");
 295                 lua_pushstring(L,  game.path.c_str());
 296                 lua_settable(L,    top_lvl2);
 297
 298                 lua_pushstring(L,  "type");
 299                 lua_pushstring(L,  "game");
 300                 lua_settable(L,    top_lvl2);
 301
 302                 lua_pushstring(L,  "gamemods_path");
 303                 lua_pushstring(L,  game.gamemods_path.c_str());
 304                 lua_settable(L,    top_lvl2);
 305
 306                 lua_pushstring(L,  "name");
 307                 lua_pushstring(L,  game.name.c_str());
 308                 lua_settable(L,    top_lvl2);
 309
 310                 lua_pushstring(L,  "author");
 311                 lua_pushstring(L,  game.author.c_str());
 312                 lua_settable(L,    top_lvl2);
 313
 314                 lua_pushstring(L,  "release");
 315                 lua_pushinteger(L, game.release);
 316                 lua_settable(L,    top_lvl2);
 317
 318                 lua_pushstring(L,  "menuicon_path");
 319                 lua_pushstring(L,  game.menuicon_path.c_str());
 320                 lua_settable(L,    top_lvl2);
 321
 322                 lua_pushstring(L, "addon_mods_paths");
 323                 lua_newtable(L);
 324                 int table2 = lua_gettop(L);
 325                 int internal_index = 1;
 326                 for (const auto &addon_mods_path : game.addon_mods_paths) {
 327                         lua_pushnumber(L, internal_index);
 328                         lua_pushstring(L, addon_mods_path.second.c_str());
 329                         lua_settable(L,   table2);
 330                         internal_index++;
 331                 }
 332                 lua_settable(L, top_lvl2);
 333                 lua_settable(L, top);
 334                 index++;
 335         }
 336         return 1;
 337 }
 338
 339 /******************************************************************************/
 340 int ModApiMainMenu::l_get_content_info(lua_State *L)
 341 {
 342         std::string path = luaL_checkstring(L, 1);
 343
 344         ContentSpec spec;
 345         spec.path = path;
 346         parseContentInfo(spec);
 347
 348         lua_newtable(L);
 349
 350         lua_pushstring(L, spec.name.c_str());
 351         lua_setfield(L, -2, "name");
 352
 353         lua_pushstring(L, spec.type.c_str());
 354         lua_setfield(L, -2, "type");
 355
 356         lua_pushstring(L, spec.author.c_str());
 357         lua_setfield(L, -2, "author");
 358
 359         lua_pushinteger(L, spec.release);
 360         lua_setfield(L, -2, "release");
 361
 362         lua_pushstring(L, spec.desc.c_str());
 363         lua_setfield(L, -2, "description");
 364
 365         lua_pushstring(L, spec.path.c_str());
 366         lua_setfield(L, -2, "path");
 367
 368         if (spec.type == "mod") {
 369                 ModSpec spec;
 370                 spec.path = path;
 371                 parseModContents(spec);
 372
 373                 // Dependencies
 374                 lua_newtable(L);
 375                 int i = 1;
 376                 for (const auto &dep : spec.depends) {
 377                         lua_pushstring(L, dep.c_str());
 378                         lua_rawseti(L, -2, i++);
 379                 }
 380                 lua_setfield(L, -2, "depends");
 381
 382                 // Optional Dependencies
 383                 lua_newtable(L);
 384                 i = 1;
 385                 for (const auto &dep : spec.optdepends) {
 386                         lua_pushstring(L, dep.c_str());
 387                         lua_rawseti(L, -2, i++);
 388                 }
 389                 lua_setfield(L, -2, "optional_depends");
 390         }
 391
 392         return 1;
 393 }
 394
 395 /******************************************************************************/
 396 int ModApiMainMenu::l_show_keys_menu(lua_State *L)
 397 {
 398         GUIEngine* engine = getGuiEngine(L);
 399         sanity_check(engine != NULL);
 400
 401         GUIKeyChangeMenu *kmenu = new GUIKeyChangeMenu(
 402                         engine->m_rendering_engine->get_gui_env(),
 403                         engine->m_parent,
 404                         -1,
 405                         engine->m_menumanager,
 406                         engine->m_texture_source);
 407         kmenu->drop();
 408         return 0;
 409 }
 410
 411 /******************************************************************************/
 412 int ModApiMainMenu::l_create_world(lua_State *L)
 413 {
 414         const char *name        = luaL_checkstring(L, 1);
 415         int gameidx                     = luaL_checkinteger(L,2) -1;
 416
 417         StringMap use_settings;
 418         luaL_checktype(L, 3, LUA_TTABLE);
 419         lua_pushnil(L);
 420         while (lua_next(L, 3) != 0) {
 421                 // key at index -2 and value at index -1
 422                 use_settings[luaL_checkstring(L, -2)] = luaL_checkstring(L, -1);
 423                 lua_pop(L, 1);
 424         }
 425         lua_pop(L, 1);
 426
 427         std::string path = porting::path_user + DIR_DELIM
 428                         "worlds" + DIR_DELIM
 429                         + sanitizeDirName(name, "world_");
 430
 431         std::vector<SubgameSpec> games = getAvailableGames();
 432         if (gameidx < 0 || gameidx >= (int) games.size()) {
 433                 lua_pushstring(L, "Invalid game index");
 434                 return 1;
 435         }
 436
 437         // Set the settings for world creation
 438         // this is a bad hack but the best we have right now..
 439         StringMap backup;
 440         for (auto it : use_settings) {
 441                 if (g_settings->existsLocal(it.first))
 442                         backup[it.first] = g_settings->get(it.first);
 443                 g_settings->set(it.first, it.second);
 444         }
 445
 446         // Create world if it doesn't exist
 447         try {
 448                 loadGameConfAndInitWorld(path, name, games[gameidx], true);
 449                 lua_pushnil(L);
 450         } catch (const BaseException &e) {
 451                 auto err = std::string("Failed to initialize world: ") + e.what();
 452                 lua_pushstring(L, err.c_str());
 453         }
 454
 455         // Restore previous settings
 456         for (auto it : use_settings) {
 457                 auto it2 = backup.find(it.first);
 458                 if (it2 == backup.end())
 459                         g_settings->remove(it.first); // wasn't set before
 460                 else
 461                         g_settings->set(it.first, it2->second); // was set before
 462         }
 463
 464         return 1;
 465 }
 466
 467 /******************************************************************************/
 468 int ModApiMainMenu::l_delete_world(lua_State *L)
 469 {
 470         int world_id = luaL_checkinteger(L, 1) - 1;
 471         std::vector<WorldSpec> worlds = getAvailableWorlds();
 472         if (world_id < 0 || world_id >= (int) worlds.size()) {
 473                 lua_pushstring(L, "Invalid world index");
 474                 return 1;
 475         }
 476         const WorldSpec &spec = worlds[world_id];
 477         if (!fs::RecursiveDelete(spec.path)) {
 478                 lua_pushstring(L, "Failed to delete world");
 479                 return 1;
 480         }
 481         return 0;
 482 }
 483
 484 /******************************************************************************/
 485 int ModApiMainMenu::l_set_topleft_text(lua_State *L)
 486 {
 487         GUIEngine* engine = getGuiEngine(L);
 488         sanity_check(engine != NULL);
 489
 490         std::string text;
 491
 492         if (!lua_isnone(L,1) && !lua_isnil(L,1))
 493                 text = luaL_checkstring(L, 1);
 494
 495         engine->setTopleftText(text);
 496         return 0;
 497 }
 498
 499 /******************************************************************************/
 500 int ModApiMainMenu::l_get_mapgen_names(lua_State *L)
 501 {
 502         std::vector<const char *> names;
 503         bool include_hidden = lua_isboolean(L, 1) && readParam<bool>(L, 1);
 504         Mapgen::getMapgenNames(&names, include_hidden);
 505
 506         lua_newtable(L);
 507         for (size_t i = 0; i != names.size(); i++) {
 508                 lua_pushstring(L, names[i]);
 509                 lua_rawseti(L, -2, i + 1);
 510         }
 511
 512         return 1;
 513 }
 514
 515
 516 /******************************************************************************/
 517 int ModApiMainMenu::l_get_user_path(lua_State *L)
 518 {
 519         std::string path = fs::RemoveRelativePathComponents(porting::path_user);
 520         lua_pushstring(L, path.c_str());
 521         return 1;
 522 }
 523
 524 /******************************************************************************/
 525 int ModApiMainMenu::l_get_modpath(lua_State *L)
 526 {
 527         std::string modpath = fs::RemoveRelativePathComponents(
 528                 porting::path_user + DIR_DELIM + "mods" + DIR_DELIM);
 529         lua_pushstring(L, modpath.c_str());
 530         return 1;
 531 }
 532
 533 /******************************************************************************/
 534 int ModApiMainMenu::l_get_modpaths(lua_State *L)
 535 {
 536         lua_newtable(L);
 537
 538         ModApiMainMenu::l_get_modpath(L);
 539         lua_setfield(L, -2, "mods");
 540
 541         for (const std::string &component : getEnvModPaths()) {
 542                 lua_pushstring(L, component.c_str());
 543                 lua_setfield(L, -2, fs::AbsolutePath(component).c_str());
 544         }
 545         return 1;
 546 }
 547
 548 /******************************************************************************/
 549 int ModApiMainMenu::l_get_clientmodpath(lua_State *L)
 550 {
 551         std::string modpath = fs::RemoveRelativePathComponents(
 552                 porting::path_user + DIR_DELIM + "clientmods" + DIR_DELIM);
 553         lua_pushstring(L, modpath.c_str());
 554         return 1;
 555 }
 556
 557 /******************************************************************************/
 558 int ModApiMainMenu::l_get_gamepath(lua_State *L)
 559 {
 560         std::string gamepath = fs::RemoveRelativePathComponents(
 561                 porting::path_user + DIR_DELIM + "games" + DIR_DELIM);
 562         lua_pushstring(L, gamepath.c_str());
 563         return 1;
 564 }
 565
 566 /******************************************************************************/
 567 int ModApiMainMenu::l_get_texturepath(lua_State *L)
 568 {
 569         std::string gamepath = fs::RemoveRelativePathComponents(
 570                 porting::path_user + DIR_DELIM + "textures");
 571         lua_pushstring(L, gamepath.c_str());
 572         return 1;
 573 }
 574
 575 /******************************************************************************/
 576 int ModApiMainMenu::l_get_texturepath_share(lua_State *L)
 577 {
 578         std::string gamepath = fs::RemoveRelativePathComponents(
 579                 porting::path_share + DIR_DELIM + "textures");
 580         lua_pushstring(L, gamepath.c_str());
 581         return 1;
 582 }
 583
 584 /******************************************************************************/
 585 int ModApiMainMenu::l_get_cache_path(lua_State *L)
 586 {
 587         lua_pushstring(L, fs::RemoveRelativePathComponents(porting::path_cache).c_str());
 588         return 1;
 589 }
 590
 591 /******************************************************************************/
 592 int ModApiMainMenu::l_get_temp_path(lua_State *L)
 593 {
 594         if (lua_isnoneornil(L, 1) || !lua_toboolean(L, 1))
 595                 lua_pushstring(L, fs::TempPath().c_str());
 596         else
 597                 lua_pushstring(L, fs::CreateTempFile().c_str());
 598         return 1;
 599 }
 600
 601 /******************************************************************************/
 602 int ModApiMainMenu::l_create_dir(lua_State *L) {
 603         const char *path = luaL_checkstring(L, 1);
 604
 605         if (ModApiMainMenu::mayModifyPath(path)) {
 606                 lua_pushboolean(L, fs::CreateAllDirs(path));
 607                 return 1;
 608         }
 609
 610         lua_pushboolean(L, false);
 611         return 1;
 612 }
 613
 614 /******************************************************************************/
 615 int ModApiMainMenu::l_delete_dir(lua_State *L)
 616 {
 617         const char *path = luaL_checkstring(L, 1);
 618
 619         std::string absolute_path = fs::RemoveRelativePathComponents(path);
 620
 621         if (ModApiMainMenu::mayModifyPath(absolute_path)) {
 622                 lua_pushboolean(L, fs::RecursiveDelete(absolute_path));
 623                 return 1;
 624         }
 625
 626         lua_pushboolean(L, false);
 627         return 1;
 628 }
 629
 630 /******************************************************************************/
 631 int ModApiMainMenu::l_copy_dir(lua_State *L)
 632 {
 633         const char *source      = luaL_checkstring(L, 1);
 634         const char *destination = luaL_checkstring(L, 2);
 635
 636         bool keep_source = true;
 637         if (!lua_isnoneornil(L, 3))
 638                 keep_source = readParam<bool>(L, 3);
 639
 640         std::string abs_destination = fs::RemoveRelativePathComponents(destination);
 641         std::string abs_source = fs::RemoveRelativePathComponents(source);
 642
 643         if (!ModApiMainMenu::mayModifyPath(abs_destination) ||
 644                 (!keep_source && !ModApiMainMenu::mayModifyPath(abs_source))) {
 645                 lua_pushboolean(L, false);
 646                 return 1;
 647         }
 648
 649         bool retval;
 650         if (keep_source)
 651                 retval = fs::CopyDir(abs_source, abs_destination);
 652         else
 653                 retval = fs::MoveDir(abs_source, abs_destination);
 654         lua_pushboolean(L, retval);
 655         return 1;
 656 }
 657
 658 /******************************************************************************/
 659 int ModApiMainMenu::l_is_dir(lua_State *L)
 660 {
 661         const char *path = luaL_checkstring(L, 1);
 662
 663         lua_pushboolean(L, fs::IsDir(path));
 664         return 1;
 665 }
 666
 667 /******************************************************************************/
 668 int ModApiMainMenu::l_extract_zip(lua_State *L)
 669 {
 670         const char *zipfile     = luaL_checkstring(L, 1);
 671         const char *destination = luaL_checkstring(L, 2);
 672
 673         std::string absolute_destination = fs::RemoveRelativePathComponents(destination);
 674
 675         if (ModApiMainMenu::mayModifyPath(absolute_destination)) {
 676                 auto fs = RenderingEngine::get_raw_device()->getFileSystem();
 677                 bool ok = fs::extractZipFile(fs, zipfile, destination);
 678                 lua_pushboolean(L, ok);
 679                 return 1;
 680         }
 681
 682         lua_pushboolean(L,false);
 683         return 1;
 684 }
 685
 686 /******************************************************************************/
 687 int ModApiMainMenu::l_get_mainmenu_path(lua_State *L)
 688 {
 689         GUIEngine* engine = getGuiEngine(L);
 690         sanity_check(engine != NULL);
 691
 692         lua_pushstring(L,engine->getScriptDir().c_str());
 693         return 1;
 694 }
 695
 696 /******************************************************************************/
 697 bool ModApiMainMenu::mayModifyPath(std::string path)
 698 {
 699         path = fs::RemoveRelativePathComponents(path);
 700
 701         if (fs::PathStartsWith(path, fs::TempPath()))
 702                 return true;
 703
 704         std::string path_user = fs::RemoveRelativePathComponents(porting::path_user);
 705
 706         if (fs::PathStartsWith(path, path_user + DIR_DELIM "client"))
 707                 return true;
 708         if (fs::PathStartsWith(path, path_user + DIR_DELIM "clientmods"))
 709                 return true;
 710         if (fs::PathStartsWith(path, path_user + DIR_DELIM "textures"))
 711                 return true;
 712         if (fs::PathStartsWith(path, path_user + DIR_DELIM "games"))
 713                 return true;
 714         if (fs::PathStartsWith(path, path_user + DIR_DELIM "mods"))
 715                 return true;
 716         if (fs::PathStartsWith(path, path_user + DIR_DELIM "textures"))
 717                 return true;
 718         if (fs::PathStartsWith(path, path_user + DIR_DELIM "worlds"))
 719                 return true;
 720
 721         if (fs::PathStartsWith(path, fs::RemoveRelativePathComponents(porting::path_cache)))
 722                 return true;
 723
 724         return false;
 725 }
 726
 727
 728 /******************************************************************************/
 729 int ModApiMainMenu::l_may_modify_path(lua_State *L)
 730 {
 731         const char *target = luaL_checkstring(L, 1);
 732         std::string absolute_destination = fs::RemoveRelativePathComponents(target);
 733         lua_pushboolean(L, ModApiMainMenu::mayModifyPath(absolute_destination));
 734         return 1;
 735 }
 736
 737 /******************************************************************************/
 738 int ModApiMainMenu::l_show_path_select_dialog(lua_State *L)
 739 {
 740         GUIEngine* engine = getGuiEngine(L);
 741         sanity_check(engine != NULL);
 742
 743         const char *formname= luaL_checkstring(L, 1);
 744         const char *title       = luaL_checkstring(L, 2);
 745         bool is_file_select = readParam<bool>(L, 3);
 746
 747         GUIFileSelectMenu* fileOpenMenu =
 748                 new GUIFileSelectMenu(engine->m_rendering_engine->get_gui_env(),
 749                                 engine->m_parent,
 750                                 -1,
 751                                 engine->m_menumanager,
 752                                 title,
 753                                 formname,
 754                                 is_file_select);
 755         fileOpenMenu->setTextDest(engine->m_buttonhandler);
 756         fileOpenMenu->drop();
 757         return 0;
 758 }
 759
 760 /******************************************************************************/
 761 int ModApiMainMenu::l_download_file(lua_State *L)
 762 {
 763         const char *url    = luaL_checkstring(L, 1);
 764         const char *target = luaL_checkstring(L, 2);
 765
 766         //check path
 767         std::string absolute_destination = fs::RemoveRelativePathComponents(target);
 768
 769         if (ModApiMainMenu::mayModifyPath(absolute_destination)) {
 770                 if (GUIEngine::downloadFile(url,absolute_destination)) {
 771                         lua_pushboolean(L,true);
 772                         return 1;
 773                 }
 774         } else {
 775                 errorstream << "DOWNLOAD denied: " << absolute_destination
 776                                 << " isn't a allowed path" << std::endl;
 777         }
 778         lua_pushboolean(L,false);
 779         return 1;
 780 }
 781
 782 /******************************************************************************/
 783 int ModApiMainMenu::l_get_video_drivers(lua_State *L)
 784 {
 785         std::vector<irr::video::E_DRIVER_TYPE> drivers = RenderingEngine::getSupportedVideoDrivers();
 786
 787         lua_newtable(L);
 788         for (u32 i = 0; i != drivers.size(); i++) {
 789                 auto &info = RenderingEngine::getVideoDriverInfo(drivers[i]);
 790
 791                 lua_newtable(L);
 792                 lua_pushstring(L, info.name.c_str());
 793                 lua_setfield(L, -2, "name");
 794                 lua_pushstring(L, info.friendly_name.c_str());
 795                 lua_setfield(L, -2, "friendly_name");
 796
 797                 lua_rawseti(L, -2, i + 1);
 798         }
 799
 800         return 1;
 801 }
 802
 803 /******************************************************************************/
 804 int ModApiMainMenu::l_gettext(lua_State *L)
 805 {
 806         const char *srctext = luaL_checkstring(L, 1);
 807         const char *text = *srctext ? gettext(srctext) : "";
 808         lua_pushstring(L, text);
 809
 810         return 1;
 811 }
 812
 813 /******************************************************************************/
 814 int ModApiMainMenu::l_get_screen_info(lua_State *L)
 815 {
 816         lua_newtable(L);
 817         int top = lua_gettop(L);
 818         lua_pushstring(L,"density");
 819         lua_pushnumber(L,RenderingEngine::getDisplayDensity());
 820         lua_settable(L, top);
 821
 822         const v2u32 &window_size = RenderingEngine::getWindowSize();
 823         lua_pushstring(L,"window_width");
 824         lua_pushnumber(L, window_size.X);
 825         lua_settable(L, top);
 826
 827         lua_pushstring(L,"window_height");
 828         lua_pushnumber(L, window_size.Y);
 829         lua_settable(L, top);
 830
 831         lua_pushstring(L, "render_info");
 832         lua_pushstring(L, wide_to_utf8(RenderingEngine::get_video_driver()->getName()).c_str());
 833         lua_settable(L, top);
 834         return 1;
 835 }
 836
 837 /******************************************************************************/
 838 int ModApiMainMenu::l_get_min_supp_proto(lua_State *L)
 839 {
 840         lua_pushinteger(L, CLIENT_PROTOCOL_VERSION_MIN);
 841         return 1;
 842 }
 843
 844 int ModApiMainMenu::l_get_max_supp_proto(lua_State *L)
 845 {
 846         lua_pushinteger(L, CLIENT_PROTOCOL_VERSION_MAX);
 847         return 1;
 848 }
 849
 850 /******************************************************************************/
 851 int ModApiMainMenu::l_open_url(lua_State *L)
 852 {
 853         std::string url = luaL_checkstring(L, 1);
 854         lua_pushboolean(L, porting::open_url(url));
 855         return 1;
 856 }
 857
 858 /******************************************************************************/
 859 int ModApiMainMenu::l_open_dir(lua_State *L)
 860 {
 861         std::string path = luaL_checkstring(L, 1);
 862         lua_pushboolean(L, porting::open_directory(path));
 863         return 1;
 864 }
 865
 866 /******************************************************************************/
 867 int ModApiMainMenu::l_do_async_callback(lua_State *L)
 868 {
 869         MainMenuScripting *script = getScriptApi<MainMenuScripting>(L);
 870
 871         size_t func_length, param_length;
 872         const char* serialized_func_raw = luaL_checklstring(L, 1, &func_length);
 873         const char* serialized_param_raw = luaL_checklstring(L, 2, &param_length);
 874
 875         sanity_check(serialized_func_raw != NULL);
 876         sanity_check(serialized_param_raw != NULL);
 877
 878         u32 jobId = script->queueAsync(
 879                 std::string(serialized_func_raw, func_length),
 880                 std::string(serialized_param_raw, param_length));
 881
 882         lua_pushinteger(L, jobId);
 883
 884         return 1;
 885 }
 886
 887 /******************************************************************************/
 888 void ModApiMainMenu::Initialize(lua_State *L, int top)
 889 {
 890         API_FCT(update_formspec);
 891         API_FCT(set_formspec_prepend);
 892         API_FCT(set_clouds);
 893         API_FCT(get_textlist_index);
 894         API_FCT(get_table_index);
 895         API_FCT(get_worlds);
 896         API_FCT(get_games);
 897         API_FCT(get_content_info);
 898         API_FCT(start);
 899         API_FCT(close);
 900         API_FCT(show_keys_menu);
 901         API_FCT(create_world);
 902         API_FCT(delete_world);
 903         API_FCT(set_background);
 904         API_FCT(set_topleft_text);
 905         API_FCT(get_mapgen_names);
 906         API_FCT(get_user_path);
 907         API_FCT(get_modpath);
 908         API_FCT(get_modpaths);
 909         API_FCT(get_clientmodpath);
 910         API_FCT(get_gamepath);
 911         API_FCT(get_texturepath);
 912         API_FCT(get_texturepath_share);
 913         API_FCT(get_cache_path);
 914         API_FCT(get_temp_path);
 915         API_FCT(create_dir);
 916         API_FCT(delete_dir);
 917         API_FCT(copy_dir);
 918         API_FCT(is_dir);
 919         API_FCT(extract_zip);
 920         API_FCT(may_modify_path);
 921         API_FCT(get_mainmenu_path);
 922         API_FCT(show_path_select_dialog);
 923         API_FCT(download_file);
 924         API_FCT(gettext);
 925         API_FCT(get_video_drivers);
 926         API_FCT(get_screen_info);
 927         API_FCT(get_min_supp_proto);
 928         API_FCT(get_max_supp_proto);
 929         API_FCT(open_url);
 930         API_FCT(open_dir);
 931         API_FCT(do_async_callback);
 932 }
 933
 934 /******************************************************************************/
 935 void ModApiMainMenu::InitializeAsync(lua_State *L, int top)
 936 {
 937         API_FCT(get_worlds);
 938         API_FCT(get_games);
 939         API_FCT(get_mapgen_names);
 940         API_FCT(get_user_path);
 941         API_FCT(get_modpath);
 942         API_FCT(get_modpaths);
 943         API_FCT(get_clientmodpath);
 944         API_FCT(get_gamepath);
 945         API_FCT(get_texturepath);
 946         API_FCT(get_texturepath_share);
 947         API_FCT(get_cache_path);
 948         API_FCT(get_temp_path);
 949         API_FCT(create_dir);
 950         API_FCT(delete_dir);
 951         API_FCT(copy_dir);
 952         API_FCT(is_dir);
 953         API_FCT(extract_zip);
 954         API_FCT(may_modify_path);
 955         API_FCT(download_file);
 956         API_FCT(get_min_supp_proto);
 957         API_FCT(get_max_supp_proto);
 958         API_FCT(gettext);
 959 }