diff options
Diffstat (limited to 'src/script/cpp_api/s_server.cpp')
| -rw-r--r-- | src/script/cpp_api/s_server.cpp | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/src/script/cpp_api/s_server.cpp b/src/script/cpp_api/s_server.cpp new file mode 100644 index 000000000..d41805b7b --- /dev/null +++ b/src/script/cpp_api/s_server.cpp @@ -0,0 +1,151 @@ +/* +Minetest +Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com> + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#include "cpp_api/s_server.h" +#include "cpp_api/s_internal.h" +#include "common/c_converter.h" + +bool ScriptApiServer::getAuth(const std::string &playername, + std::string *dst_password, + std::set<std::string> *dst_privs) +{ + SCRIPTAPI_PRECHECKHEADER + + getAuthHandler(); + lua_getfield(L, -1, "get_auth"); + if(lua_type(L, -1) != LUA_TFUNCTION) + throw LuaError(L, "Authentication handler missing get_auth"); + lua_pushstring(L, playername.c_str()); + if(lua_pcall(L, 1, 1, 0)) + scriptError("error: %s", lua_tostring(L, -1)); + + // nil = login not allowed + if(lua_isnil(L, -1)) + return false; + luaL_checktype(L, -1, LUA_TTABLE); + + std::string password; + bool found = getstringfield(L, -1, "password", password); + if(!found) + throw LuaError(L, "Authentication handler didn't return password"); + if(dst_password) + *dst_password = password; + + lua_getfield(L, -1, "privileges"); + if(!lua_istable(L, -1)) + throw LuaError(L, + "Authentication handler didn't return privilege table"); + if(dst_privs) + readPrivileges(-1, *dst_privs); + lua_pop(L, 1); + + return true; +} + +void ScriptApiServer::getAuthHandler() +{ + lua_State *L = getStack(); + + lua_getglobal(L, "minetest"); + lua_getfield(L, -1, "registered_auth_handler"); + if(lua_isnil(L, -1)){ + lua_pop(L, 1); + lua_getfield(L, -1, "builtin_auth_handler"); + } + if(lua_type(L, -1) != LUA_TTABLE) + throw LuaError(L, "Authentication handler table not valid"); +} + +void ScriptApiServer::readPrivileges(int index, std::set<std::string> &result) +{ + lua_State *L = getStack(); + + result.clear(); + lua_pushnil(L); + if(index < 0) + index -= 1; + while(lua_next(L, index) != 0){ + // key at index -2 and value at index -1 + std::string key = luaL_checkstring(L, -2); + bool value = lua_toboolean(L, -1); + if(value) + result.insert(key); + // removes value, keeps key for next iteration + lua_pop(L, 1); + } +} + +void ScriptApiServer::createAuth(const std::string &playername, + const std::string &password) +{ + SCRIPTAPI_PRECHECKHEADER + + getAuthHandler(); + lua_getfield(L, -1, "create_auth"); + if(lua_type(L, -1) != LUA_TFUNCTION) + throw LuaError(L, "Authentication handler missing create_auth"); + lua_pushstring(L, playername.c_str()); + lua_pushstring(L, password.c_str()); + if(lua_pcall(L, 2, 0, 0)) + scriptError("error: %s", lua_tostring(L, -1)); +} + +bool ScriptApiServer::setPassword(const std::string &playername, + const std::string &password) +{ + SCRIPTAPI_PRECHECKHEADER + + getAuthHandler(); + lua_getfield(L, -1, "set_password"); + if(lua_type(L, -1) != LUA_TFUNCTION) + throw LuaError(L, "Authentication handler missing set_password"); + lua_pushstring(L, playername.c_str()); + lua_pushstring(L, password.c_str()); + if(lua_pcall(L, 2, 1, 0)) + scriptError("error: %s", lua_tostring(L, -1)); + return lua_toboolean(L, -1); +} + +bool ScriptApiServer::on_chat_message(const std::string &name, + const std::string &message) +{ + SCRIPTAPI_PRECHECKHEADER + + // Get minetest.registered_on_chat_messages + lua_getglobal(L, "minetest"); + lua_getfield(L, -1, "registered_on_chat_messages"); + // Call callbacks + lua_pushstring(L, name.c_str()); + lua_pushstring(L, message.c_str()); + script_run_callbacks(L, 2, RUN_CALLBACKS_MODE_OR_SC); + bool ate = lua_toboolean(L, -1); + return ate; +} + +void ScriptApiServer::on_shutdown() +{ + SCRIPTAPI_PRECHECKHEADER + + // Get registered shutdown hooks + lua_getglobal(L, "minetest"); + lua_getfield(L, -1, "registered_on_shutdown"); + // Call callbacks + script_run_callbacks(L, 0, RUN_CALLBACKS_MODE_FIRST); +} + |