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+/*
+Minetest
+Copyright (C) 2010-2016 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2014-2016 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 "remoteplayer.h"
+#include "content_sao.h"
+#include "filesys.h"
+#include "gamedef.h"
+#include "porting.h" // strlcpy
+#include "settings.h"
+
+
+/*
+ RemotePlayer
+*/
+// static config cache for remoteplayer
+bool RemotePlayer::m_setting_cache_loaded = false;
+float RemotePlayer::m_setting_chat_message_limit_per_10sec = 0.0f;
+u16 RemotePlayer::m_setting_chat_message_limit_trigger_kick = 0;
+
+RemotePlayer::RemotePlayer(const char *name, IItemDefManager *idef):
+ Player(name, idef),
+ protocol_version(0),
+ m_sao(NULL),
+ m_dirty(false),
+ m_last_chat_message_sent(time(NULL)),
+ m_chat_message_allowance(5.0f),
+ m_message_rate_overhead(0),
+ hud_hotbar_image(""),
+ hud_hotbar_selected_image("")
+{
+ if (!RemotePlayer::m_setting_cache_loaded) {
+ RemotePlayer::m_setting_chat_message_limit_per_10sec =
+ g_settings->getFloat("chat_message_limit_per_10sec");
+ RemotePlayer::m_setting_chat_message_limit_trigger_kick =
+ g_settings->getU16("chat_message_limit_trigger_kick");
+ RemotePlayer::m_setting_cache_loaded = true;
+ }
+ movement_acceleration_default = g_settings->getFloat("movement_acceleration_default") * BS;
+ movement_acceleration_air = g_settings->getFloat("movement_acceleration_air") * BS;
+ movement_acceleration_fast = g_settings->getFloat("movement_acceleration_fast") * BS;
+ movement_speed_walk = g_settings->getFloat("movement_speed_walk") * BS;
+ movement_speed_crouch = g_settings->getFloat("movement_speed_crouch") * BS;
+ movement_speed_fast = g_settings->getFloat("movement_speed_fast") * BS;
+ movement_speed_climb = g_settings->getFloat("movement_speed_climb") * BS;
+ movement_speed_jump = g_settings->getFloat("movement_speed_jump") * BS;
+ movement_liquid_fluidity = g_settings->getFloat("movement_liquid_fluidity") * BS;
+ movement_liquid_fluidity_smooth = g_settings->getFloat("movement_liquid_fluidity_smooth") * BS;
+ movement_liquid_sink = g_settings->getFloat("movement_liquid_sink") * BS;
+ movement_gravity = g_settings->getFloat("movement_gravity") * BS;
+}
+
+void RemotePlayer::save(std::string savedir, IGameDef *gamedef)
+{
+ /*
+ * We have to open all possible player files in the players directory
+ * and check their player names because some file systems are not
+ * case-sensitive and player names are case-sensitive.
+ */
+
+ // A player to deserialize files into to check their names
+ RemotePlayer testplayer("", gamedef->idef());
+
+ savedir += DIR_DELIM;
+ std::string path = savedir + m_name;
+ for (u32 i = 0; i < PLAYER_FILE_ALTERNATE_TRIES; i++) {
+ if (!fs::PathExists(path)) {
+ // Open file and serialize
+ std::ostringstream ss(std::ios_base::binary);
+ serialize(ss);
+ if (!fs::safeWriteToFile(path, ss.str())) {
+ infostream << "Failed to write " << path << std::endl;
+ }
+ setModified(false);
+ return;
+ }
+ // Open file and deserialize
+ std::ifstream is(path.c_str(), std::ios_base::binary);
+ if (!is.good()) {
+ infostream << "Failed to open " << path << std::endl;
+ return;
+ }
+ testplayer.deSerialize(is, path, NULL);
+ is.close();
+ if (strcmp(testplayer.getName(), m_name) == 0) {
+ // Open file and serialize
+ std::ostringstream ss(std::ios_base::binary);
+ serialize(ss);
+ if (!fs::safeWriteToFile(path, ss.str())) {
+ infostream << "Failed to write " << path << std::endl;
+ }
+ setModified(false);
+ return;
+ }
+ path = savedir + m_name + itos(i);
+ }
+
+ infostream << "Didn't find free file for player " << m_name << std::endl;
+ return;
+}
+
+void RemotePlayer::deSerialize(std::istream &is, const std::string &playername,
+ PlayerSAO *sao)
+{
+ Settings args;
+
+ if (!args.parseConfigLines(is, "PlayerArgsEnd")) {
+ throw SerializationError("PlayerArgsEnd of player " + playername + " not found!");
+ }
+
+ m_dirty = true;
+ //args.getS32("version"); // Version field value not used
+ std::string name = args.get("name");
+ strlcpy(m_name, name.c_str(), PLAYERNAME_SIZE);
+
+ if (sao) {
+ try {
+ sao->setHPRaw(args.getS32("hp"));
+ } catch(SettingNotFoundException &e) {
+ sao->setHPRaw(PLAYER_MAX_HP);
+ }
+
+ try {
+ sao->setBasePosition(args.getV3F("position"));
+ } catch (SettingNotFoundException &e) {}
+
+ try {
+ sao->setPitch(args.getFloat("pitch"));
+ } catch (SettingNotFoundException &e) {}
+ try {
+ sao->setYaw(args.getFloat("yaw"));
+ } catch (SettingNotFoundException &e) {}
+
+ try {
+ sao->setBreath(args.getS32("breath"));
+ } catch (SettingNotFoundException &e) {}
+ }
+
+ inventory.deSerialize(is);
+
+ if (inventory.getList("craftpreview") == NULL) {
+ // Convert players without craftpreview
+ inventory.addList("craftpreview", 1);
+
+ bool craftresult_is_preview = true;
+ if(args.exists("craftresult_is_preview"))
+ craftresult_is_preview = args.getBool("craftresult_is_preview");
+ if(craftresult_is_preview)
+ {
+ // Clear craftresult
+ inventory.getList("craftresult")->changeItem(0, ItemStack());
+ }
+ }
+}
+
+void RemotePlayer::serialize(std::ostream &os)
+{
+ // Utilize a Settings object for storing values
+ Settings args;
+ args.setS32("version", 1);
+ args.set("name", m_name);
+ //args.set("password", m_password);
+
+ // This should not happen
+ assert(m_sao);
+ args.setS32("hp", m_sao->getHP());
+ args.setV3F("position", m_sao->getBasePosition());
+ args.setFloat("pitch", m_sao->getPitch());
+ args.setFloat("yaw", m_sao->getYaw());
+ args.setS32("breath", m_sao->getBreath());
+
+ args.writeLines(os);
+
+ os<<"PlayerArgsEnd\n";
+
+ inventory.serialize(os);
+}
+
+const RemotePlayerChatResult RemotePlayer::canSendChatMessage()
+{
+ // Rate limit messages
+ u32 now = time(NULL);
+ float time_passed = now - m_last_chat_message_sent;
+ m_last_chat_message_sent = now;
+
+ // If this feature is disabled
+ if (m_setting_chat_message_limit_per_10sec <= 0.0) {
+ return RPLAYER_CHATRESULT_OK;
+ }
+
+ m_chat_message_allowance += time_passed * (m_setting_chat_message_limit_per_10sec / 8.0f);
+ if (m_chat_message_allowance > m_setting_chat_message_limit_per_10sec) {
+ m_chat_message_allowance = m_setting_chat_message_limit_per_10sec;
+ }
+
+ if (m_chat_message_allowance < 1.0f) {
+ infostream << "Player " << m_name
+ << " chat limited due to excessive message amount." << std::endl;
+
+ // Kick player if flooding is too intensive
+ m_message_rate_overhead++;
+ if (m_message_rate_overhead > RemotePlayer::m_setting_chat_message_limit_trigger_kick) {
+ return RPLAYER_CHATRESULT_KICK;
+ }
+
+ return RPLAYER_CHATRESULT_FLOODING;
+ }
+
+ // Reinit message overhead
+ if (m_message_rate_overhead > 0) {
+ m_message_rate_overhead = 0;
+ }
+
+ m_chat_message_allowance -= 1.0f;
+ return RPLAYER_CHATRESULT_OK;
+}
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