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- /*
- Minetest
- Copyright (C) 2017 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
- 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 <cassert>
- #include <json/json.h>
- #include "database-files.h"
- #include "content_sao.h"
- #include "remoteplayer.h"
- #include "settings.h"
- #include "porting.h"
- #include "filesys.h"
- // !!! WARNING !!!
- // This backend is intended to be used on Minetest 0.4.16 only for the transition backend
- // for player files
- void PlayerDatabaseFiles::serialize(std::ostringstream &os, RemotePlayer *player)
- {
- // Utilize a Settings object for storing values
- Settings args;
- args.setS32("version", 1);
- args.set("name", player->getName());
- sanity_check(player->getPlayerSAO());
- args.setS32("hp", player->getPlayerSAO()->getHP());
- args.setV3F("position", player->getPlayerSAO()->getBasePosition());
- args.setFloat("pitch", player->getPlayerSAO()->getPitch());
- args.setFloat("yaw", player->getPlayerSAO()->getYaw());
- args.setS32("breath", player->getPlayerSAO()->getBreath());
- std::string extended_attrs;
- player->serializeExtraAttributes(extended_attrs);
- args.set("extended_attributes", extended_attrs);
- args.writeLines(os);
- os << "PlayerArgsEnd\n";
- player->inventory.serialize(os);
- }
- void PlayerDatabaseFiles::savePlayer(RemotePlayer *player)
- {
- std::string savedir = m_savedir + DIR_DELIM;
- std::string path = savedir + player->getName();
- bool path_found = false;
- RemotePlayer testplayer("", NULL);
- for (u32 i = 0; i < PLAYER_FILE_ALTERNATE_TRIES && !path_found; i++) {
- if (!fs::PathExists(path)) {
- path_found = true;
- continue;
- }
- // Open and deserialize file to check player name
- std::ifstream is(path.c_str(), std::ios_base::binary);
- if (!is.good()) {
- errorstream << "Failed to open " << path << std::endl;
- return;
- }
- testplayer.deSerialize(is, path, NULL);
- is.close();
- if (strcmp(testplayer.getName(), player->getName()) == 0) {
- path_found = true;
- continue;
- }
- path = savedir + player->getName() + itos(i);
- }
- if (!path_found) {
- errorstream << "Didn't find free file for player " << player->getName()
- << std::endl;
- return;
- }
- // Open and serialize file
- std::ostringstream ss(std::ios_base::binary);
- serialize(ss, player);
- if (!fs::safeWriteToFile(path, ss.str())) {
- infostream << "Failed to write " << path << std::endl;
- }
- player->setModified(false);
- }
- bool PlayerDatabaseFiles::removePlayer(const std::string &name)
- {
- std::string players_path = m_savedir + DIR_DELIM;
- std::string path = players_path + name;
- RemotePlayer temp_player("", NULL);
- for (u32 i = 0; i < PLAYER_FILE_ALTERNATE_TRIES; i++) {
- // Open file and deserialize
- std::ifstream is(path.c_str(), std::ios_base::binary);
- if (!is.good())
- continue;
- temp_player.deSerialize(is, path, NULL);
- is.close();
- if (temp_player.getName() == name) {
- fs::DeleteSingleFileOrEmptyDirectory(path);
- return true;
- }
- path = players_path + name + itos(i);
- }
- return false;
- }
- bool PlayerDatabaseFiles::loadPlayer(RemotePlayer *player, PlayerSAO *sao)
- {
- std::string players_path = m_savedir + DIR_DELIM;
- std::string path = players_path + player->getName();
- const std::string player_to_load = player->getName();
- for (u32 i = 0; i < PLAYER_FILE_ALTERNATE_TRIES; i++) {
- // Open file and deserialize
- std::ifstream is(path.c_str(), std::ios_base::binary);
- if (!is.good())
- continue;
- player->deSerialize(is, path, sao);
- is.close();
- if (player->getName() == player_to_load)
- return true;
- path = players_path + player_to_load + itos(i);
- }
- infostream << "Player file for player " << player_to_load << " not found" << std::endl;
- return false;
- }
- void PlayerDatabaseFiles::listPlayers(std::vector<std::string> &res)
- {
- std::vector<fs::DirListNode> files = fs::GetDirListing(m_savedir);
- // list files into players directory
- for (std::vector<fs::DirListNode>::const_iterator it = files.begin(); it !=
- files.end(); ++it) {
- // Ignore directories
- if (it->dir)
- continue;
- const std::string &filename = it->name;
- std::string full_path = m_savedir + DIR_DELIM + filename;
- std::ifstream is(full_path.c_str(), std::ios_base::binary);
- if (!is.good())
- continue;
- RemotePlayer player(filename.c_str(), NULL);
- // Null env & dummy peer_id
- PlayerSAO playerSAO(NULL, &player, 15789, false);
- player.deSerialize(is, "", &playerSAO);
- is.close();
- res.emplace_back(player.getName());
- }
- }
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