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minetest/src/server.cpp

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/*
Minetest
Copyright (C) 2010-2013 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 "server.h"
#include <iostream>
#include <queue>
#include <algorithm>
#include "network/networkprotocol.h"
#include "network/serveropcodes.h"
#include "ban.h"
#include "environment.h"
#include "map.h"
#include "threading/mutex_auto_lock.h"
#include "constants.h"
#include "voxel.h"
#include "config.h"
#include "version.h"
#include "filesys.h"
#include "mapblock.h"
#include "serverobject.h"
#include "genericobject.h"
#include "settings.h"
#include "profiler.h"
#include "log.h"
#include "serverscripting.h"
#include "nodedef.h"
#include "itemdef.h"
#include "craftdef.h"
#include "emerge.h"
#include "mapgen.h"
#include "mg_biome.h"
#include "content_mapnode.h"
#include "content_nodemeta.h"
#include "content_abm.h"
#include "content_sao.h"
#include "mods.h"
#include "event_manager.h"
#include "serverlist.h"
#include "util/string.h"
#include "rollback.h"
#include "util/serialize.h"
#include "util/thread.h"
#include "defaultsettings.h"
#include "util/base64.h"
#include "util/sha1.h"
#include "util/hex.h"
class ClientNotFoundException : public BaseException
{
public:
ClientNotFoundException(const char *s):
BaseException(s)
{}
};
class ServerThread : public Thread
{
public:
ServerThread(Server *server):
Thread("Server"),
m_server(server)
{}
void *run();
private:
Server *m_server;
};
void *ServerThread::run()
{
DSTACK(FUNCTION_NAME);
BEGIN_DEBUG_EXCEPTION_HANDLER
m_server->AsyncRunStep(true);
while (!stopRequested()) {
try {
//TimeTaker timer("AsyncRunStep() + Receive()");
m_server->AsyncRunStep();
m_server->Receive();
} catch (con::NoIncomingDataException &e) {
} catch (con::PeerNotFoundException &e) {
infostream<<"Server: PeerNotFoundException"<<std::endl;
} catch (ClientNotFoundException &e) {
} catch (con::ConnectionBindFailed &e) {
m_server->setAsyncFatalError(e.what());
} catch (LuaError &e) {
m_server->setAsyncFatalError(
"ServerThread::run Lua: " + std::string(e.what()));
}
}
END_DEBUG_EXCEPTION_HANDLER
return NULL;
}
v3f ServerSoundParams::getPos(ServerEnvironment *env, bool *pos_exists) const
{
if(pos_exists) *pos_exists = false;
switch(type){
case SSP_LOCAL:
return v3f(0,0,0);
case SSP_POSITIONAL:
if(pos_exists) *pos_exists = true;
return pos;
case SSP_OBJECT: {
if(object == 0)
return v3f(0,0,0);
ServerActiveObject *sao = env->getActiveObject(object);
if(!sao)
return v3f(0,0,0);
if(pos_exists) *pos_exists = true;
return sao->getBasePosition(); }
}
return v3f(0,0,0);
}
/*
Server
*/
Server::Server(
const std::string &path_world,
const SubgameSpec &gamespec,
bool simple_singleplayer_mode,
bool ipv6,
bool dedicated,
ChatInterface *iface
):
m_path_world(path_world),
m_gamespec(gamespec),
m_simple_singleplayer_mode(simple_singleplayer_mode),
m_dedicated(dedicated),
m_async_fatal_error(""),
m_env(NULL),
m_con(PROTOCOL_ID,
512,
CONNECTION_TIMEOUT,
ipv6,
this),
m_banmanager(NULL),
m_rollback(NULL),
m_enable_rollback_recording(false),
m_emerge(NULL),
m_script(NULL),
m_itemdef(createItemDefManager()),
m_nodedef(createNodeDefManager()),
m_craftdef(createCraftDefManager()),
m_event(new EventManager()),
m_thread(NULL),
m_time_of_day_send_timer(0),
m_uptime(0),
m_clients(&m_con),
m_shutdown_requested(false),
m_shutdown_ask_reconnect(false),
m_admin_chat(iface),
m_ignore_map_edit_events(false),
m_ignore_map_edit_events_peer_id(0),
m_next_sound_id(0),
m_mod_storage_save_timer(10.0f)
{
m_liquid_transform_timer = 0.0;
m_liquid_transform_every = 1.0;
m_masterserver_timer = 0.0;
m_emergethread_trigger_timer = 0.0;
m_savemap_timer = 0.0;
m_step_dtime = 0.0;
m_lag = g_settings->getFloat("dedicated_server_step");
if(path_world == "")
throw ServerError("Supplied empty world path");
if(!gamespec.isValid())
throw ServerError("Supplied invalid gamespec");
infostream<<"Server created for gameid \""<<m_gamespec.id<<"\"";
if(m_simple_singleplayer_mode)
infostream<<" in simple singleplayer mode"<<std::endl;
else
infostream<<std::endl;
infostream<<"- world: "<<m_path_world<<std::endl;
infostream<<"- game: "<<m_gamespec.path<<std::endl;
// Create world if it doesn't exist
if(!loadGameConfAndInitWorld(m_path_world, m_gamespec))
throw ServerError("Failed to initialize world");
// Create server thread
m_thread = new ServerThread(this);
// Create emerge manager
m_emerge = new EmergeManager(this);
// Create ban manager
std::string ban_path = m_path_world + DIR_DELIM "ipban.txt";
m_banmanager = new BanManager(ban_path);
ServerModConfiguration modconf(m_path_world);
m_mods = modconf.getMods();
std::vector<ModSpec> unsatisfied_mods = modconf.getUnsatisfiedMods();
// complain about mods with unsatisfied dependencies
if (!modconf.isConsistent()) {
modconf.printUnsatisfiedModsError();
}
Settings worldmt_settings;
std::string worldmt = m_path_world + DIR_DELIM + "world.mt";
worldmt_settings.readConfigFile(worldmt.c_str());
std::vector<std::string> names = worldmt_settings.getNames();
std::set<std::string> load_mod_names;
for(std::vector<std::string>::iterator it = names.begin();
it != names.end(); ++it) {
std::string name = *it;
if(name.compare(0,9,"load_mod_")==0 && worldmt_settings.getBool(name))
load_mod_names.insert(name.substr(9));
}
// complain about mods declared to be loaded, but not found
for(std::vector<ModSpec>::iterator it = m_mods.begin();
it != m_mods.end(); ++it)
load_mod_names.erase((*it).name);
for(std::vector<ModSpec>::iterator it = unsatisfied_mods.begin();
it != unsatisfied_mods.end(); ++it)
load_mod_names.erase((*it).name);
if(!load_mod_names.empty()) {
errorstream << "The following mods could not be found:";
for(std::set<std::string>::iterator it = load_mod_names.begin();
it != load_mod_names.end(); ++it)
errorstream << " \"" << (*it) << "\"";
errorstream << std::endl;
}
//lock environment
MutexAutoLock envlock(m_env_mutex);
// Create the Map (loads map_meta.txt, overriding configured mapgen params)
ServerMap *servermap = new ServerMap(path_world, this, m_emerge);
// Initialize scripting
infostream<<"Server: Initializing Lua"<<std::endl;
m_script = new ServerScripting(this);
m_script->loadMod(getBuiltinLuaPath() + DIR_DELIM "init.lua", BUILTIN_MOD_NAME);
// Print mods
infostream << "Server: Loading mods: ";
for (std::vector<ModSpec>::const_iterator i = m_mods.begin();
i != m_mods.end(); ++i) {
infostream << (*i).name << " ";
}
infostream << std::endl;
// Load and run "mod" scripts
for (std::vector<ModSpec>::const_iterator it = m_mods.begin();
it != m_mods.end(); ++it) {
const ModSpec &mod = *it;
if (!string_allowed(mod.name, MODNAME_ALLOWED_CHARS)) {
throw ModError("Error loading mod \"" + mod.name +
"\": Mod name does not follow naming conventions: "
"Only chararacters [a-z0-9_] are allowed.");
}
std::string script_path = mod.path + DIR_DELIM + "init.lua";
infostream << " [" << padStringRight(mod.name, 12) << "] [\""
<< script_path << "\"]" << std::endl;
m_script->loadMod(script_path, mod.name);
}
// Read Textures and calculate sha1 sums
fillMediaCache();
// Apply item aliases in the node definition manager
m_nodedef->updateAliases(m_itemdef);
// Apply texture overrides from texturepack/override.txt
std::string texture_path = g_settings->get("texture_path");
if (texture_path != "" && fs::IsDir(texture_path))
m_nodedef->applyTextureOverrides(texture_path + DIR_DELIM + "override.txt");
m_nodedef->setNodeRegistrationStatus(true);
// Perform pending node name resolutions
m_nodedef->runNodeResolveCallbacks();
// unmap node names for connected nodeboxes
m_nodedef->mapNodeboxConnections();
// init the recipe hashes to speed up crafting
m_craftdef->initHashes(this);
// Initialize Environment
m_env = new ServerEnvironment(servermap, m_script, this, m_path_world);
m_clients.setEnv(m_env);
if (!servermap->settings_mgr.makeMapgenParams())
FATAL_ERROR("Couldn't create any mapgen type");
// Initialize mapgens
m_emerge->initMapgens(servermap->getMapgenParams());
m_enable_rollback_recording = g_settings->getBool("enable_rollback_recording");
if (m_enable_rollback_recording) {
// Create rollback manager
m_rollback = new RollbackManager(m_path_world, this);
}
// Give environment reference to scripting api
m_script->initializeEnvironment(m_env);
// Register us to receive map edit events
servermap->addEventReceiver(this);
// If file exists, load environment metadata
if (fs::PathExists(m_path_world + DIR_DELIM "env_meta.txt")) {
infostream << "Server: Loading environment metadata" << std::endl;
m_env->loadMeta();
} else {
m_env->loadDefaultMeta();
}
// Add some test ActiveBlockModifiers to environment
add_legacy_abms(m_env, m_nodedef);
m_liquid_transform_every = g_settings->getFloat("liquid_update");
m_max_chatmessage_length = g_settings->getU16("chat_message_max_size");
}
Server::~Server()
{
infostream<<"Server destructing"<<std::endl;
// Send shutdown message
SendChatMessage(PEER_ID_INEXISTENT, L"*** Server shutting down");
{
MutexAutoLock envlock(m_env_mutex);
// Execute script shutdown hooks
m_script->on_shutdown();
infostream << "Server: Saving players" << std::endl;
m_env->saveLoadedPlayers();
infostream << "Server: Kicking players" << std::endl;
std::string kick_msg;
bool reconnect = false;
if (getShutdownRequested()) {
reconnect = m_shutdown_ask_reconnect;
kick_msg = m_shutdown_msg;
}
if (kick_msg == "") {
kick_msg = g_settings->get("kick_msg_shutdown");
}
m_env->kickAllPlayers(SERVER_ACCESSDENIED_SHUTDOWN,
kick_msg, reconnect);
infostream << "Server: Saving environment metadata" << std::endl;
m_env->saveMeta();
}
// Stop threads
stop();
delete m_thread;
// stop all emerge threads before deleting players that may have
// requested blocks to be emerged
m_emerge->stopThreads();
// Delete things in the reverse order of creation
delete m_emerge;
delete m_env;
delete m_rollback;
delete m_banmanager;
delete m_event;
delete m_itemdef;
delete m_nodedef;
delete m_craftdef;
// Deinitialize scripting
infostream<<"Server: Deinitializing scripting"<<std::endl;
delete m_script;
// Delete detached inventories
for (std::map<std::string, Inventory*>::iterator
i = m_detached_inventories.begin();
i != m_detached_inventories.end(); ++i) {
delete i->second;
}
}
void Server::start(Address bind_addr)
{
DSTACK(FUNCTION_NAME);
m_bind_addr = bind_addr;
infostream<<"Starting server on "
<< bind_addr.serializeString() <<"..."<<std::endl;
// Stop thread if already running
m_thread->stop();
// Initialize connection
m_con.SetTimeoutMs(30);
m_con.Serve(bind_addr);
// Start thread
m_thread->start();
// ASCII art for the win!
actionstream
<<" .__ __ __ "<<std::endl
<<" _____ |__| ____ _____/ |_ ____ _______/ |_ "<<std::endl
<<" / \\| |/ \\_/ __ \\ __\\/ __ \\ / ___/\\ __\\"<<std::endl
<<"| Y Y \\ | | \\ ___/| | \\ ___/ \\___ \\ | | "<<std::endl
<<"|__|_| /__|___| /\\___ >__| \\___ >____ > |__| "<<std::endl
<<" \\/ \\/ \\/ \\/ \\/ "<<std::endl;
actionstream<<"World at ["<<m_path_world<<"]"<<std::endl;
actionstream<<"Server for gameid=\""<<m_gamespec.id
<<"\" listening on "<<bind_addr.serializeString()<<":"
<<bind_addr.getPort() << "."<<std::endl;
}
void Server::stop()
{
DSTACK(FUNCTION_NAME);
infostream<<"Server: Stopping and waiting threads"<<std::endl;
// Stop threads (set run=false first so both start stopping)
m_thread->stop();
//m_emergethread.setRun(false);
m_thread->wait();
//m_emergethread.stop();
infostream<<"Server: Threads stopped"<<std::endl;
}
void Server::step(float dtime)
{
DSTACK(FUNCTION_NAME);
// Limit a bit
if (dtime > 2.0)
dtime = 2.0;
{
MutexAutoLock lock(m_step_dtime_mutex);
m_step_dtime += dtime;
}
// Throw if fatal error occurred in thread
std::string async_err = m_async_fatal_error.get();
if (!async_err.empty()) {
if (!m_simple_singleplayer_mode) {
m_env->kickAllPlayers(SERVER_ACCESSDENIED_CRASH,
g_settings->get("kick_msg_crash"),
g_settings->getBool("ask_reconnect_on_crash"));
}
throw ServerError("AsyncErr: " + async_err);
}
}
void Server::AsyncRunStep(bool initial_step)
{
DSTACK(FUNCTION_NAME);
g_profiler->add("Server::AsyncRunStep (num)", 1);
float dtime;
{
MutexAutoLock lock1(m_step_dtime_mutex);
dtime = m_step_dtime;
}
{
// Send blocks to clients
SendBlocks(dtime);
}
if((dtime < 0.001) && (initial_step == false))
return;
g_profiler->add("Server::AsyncRunStep with dtime (num)", 1);
//infostream<<"Server steps "<<dtime<<std::endl;
//infostream<<"Server::AsyncRunStep(): dtime="<<dtime<<std::endl;
{
MutexAutoLock lock1(m_step_dtime_mutex);
m_step_dtime -= dtime;
}
/*
Update uptime
*/
{
m_uptime.set(m_uptime.get() + dtime);
}
handlePeerChanges();
/*
Update time of day and overall game time
*/
m_env->setTimeOfDaySpeed(g_settings->getFloat("time_speed"));
/*
Send to clients at constant intervals
*/
m_time_of_day_send_timer -= dtime;
if(m_time_of_day_send_timer < 0.0) {
m_time_of_day_send_timer = g_settings->getFloat("time_send_interval");
u16 time = m_env->getTimeOfDay();
float time_speed = g_settings->getFloat("time_speed");
SendTimeOfDay(PEER_ID_INEXISTENT, time, time_speed);
}
{
MutexAutoLock lock(m_env_mutex);
// Figure out and report maximum lag to environment
float max_lag = m_env->getMaxLagEstimate();
max_lag *= 0.9998; // Decrease slowly (about half per 5 minutes)
if(dtime > max_lag){
if(dtime > 0.1 && dtime > max_lag * 2.0)
infostream<<"Server: Maximum lag peaked to "<<dtime
<<" s"<<std::endl;
max_lag = dtime;
}
m_env->reportMaxLagEstimate(max_lag);
// Step environment
ScopeProfiler sp(g_profiler, "SEnv step");
ScopeProfiler sp2(g_profiler, "SEnv step avg", SPT_AVG);
m_env->step(dtime);
}
static const float map_timer_and_unload_dtime = 2.92;
if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime))
{
MutexAutoLock lock(m_env_mutex);
// Run Map's timers and unload unused data
ScopeProfiler sp(g_profiler, "Server: map timer and unload");
m_env->getMap().timerUpdate(map_timer_and_unload_dtime,
g_settings->getFloat("server_unload_unused_data_timeout"),
U32_MAX);
}
/*
Listen to the admin chat, if available
*/
if (m_admin_chat) {
if (!m_admin_chat->command_queue.empty()) {
MutexAutoLock lock(m_env_mutex);
while (!m_admin_chat->command_queue.empty()) {
ChatEvent *evt = m_admin_chat->command_queue.pop_frontNoEx();
handleChatInterfaceEvent(evt);
delete evt;
}
}
m_admin_chat->outgoing_queue.push_back(
new ChatEventTimeInfo(m_env->getGameTime(), m_env->getTimeOfDay()));
}
/*
Do background stuff
*/
/* Transform liquids */
m_liquid_transform_timer += dtime;
if(m_liquid_transform_timer >= m_liquid_transform_every)
{
m_liquid_transform_timer -= m_liquid_transform_every;
MutexAutoLock lock(m_env_mutex);
ScopeProfiler sp(g_profiler, "Server: liquid transform");
std::map<v3s16, MapBlock*> modified_blocks;
m_env->getMap().transformLiquids(modified_blocks);
#if 0
/*
Update lighting
*/
core::map<v3s16, MapBlock*> lighting_modified_blocks;
ServerMap &map = ((ServerMap&)m_env->getMap());
map.updateLighting(modified_blocks, lighting_modified_blocks);
// Add blocks modified by lighting to modified_blocks
for(core::map<v3s16, MapBlock*>::Iterator
i = lighting_modified_blocks.getIterator();
i.atEnd() == false; i++)
{
MapBlock *block = i.getNode()->getValue();
modified_blocks.insert(block->getPos(), block);
}
#endif
/*
Set the modified blocks unsent for all the clients
*/
if(!modified_blocks.empty())
{
SetBlocksNotSent(modified_blocks);
}
}
m_clients.step(dtime);
m_lag += (m_lag > dtime ? -1 : 1) * dtime/100;
#if USE_CURL
// send masterserver announce
{
float &counter = m_masterserver_timer;
if (!isSingleplayer() && (!counter || counter >= 300.0) &&
g_settings->getBool("server_announce")) {
ServerList::sendAnnounce(counter ? ServerList::AA_UPDATE :
ServerList::AA_START,
m_bind_addr.getPort(),
m_clients.getPlayerNames(),
m_uptime.get(),
m_env->getGameTime(),
m_lag,
m_gamespec.id,
Mapgen::getMapgenName(m_emerge->mgparams->mgtype),
m_mods,
m_dedicated);
counter = 0.01;
}
counter += dtime;
}
#endif
/*
Check added and deleted active objects
*/
{
//infostream<<"Server: Checking added and deleted active objects"<<std::endl;
MutexAutoLock envlock(m_env_mutex);
m_clients.lock();
UNORDERED_MAP<u16, RemoteClient*> clients = m_clients.getClientList();
ScopeProfiler sp(g_profiler, "Server: checking added and deleted objs");
// Radius inside which objects are active
static const s16 radius =
g_settings->getS16("active_object_send_range_blocks") * MAP_BLOCKSIZE;
// Radius inside which players are active
static const bool is_transfer_limited =
g_settings->exists("unlimited_player_transfer_distance") &&
!g_settings->getBool("unlimited_player_transfer_distance");
static const s16 player_transfer_dist = g_settings->getS16("player_transfer_distance") * MAP_BLOCKSIZE;
s16 player_radius = player_transfer_dist;
if (player_radius == 0 && is_transfer_limited)
player_radius = radius;
for (UNORDERED_MAP<u16, RemoteClient*>::iterator i = clients.begin();
i != clients.end(); ++i) {
RemoteClient *client = i->second;
// If definitions and textures have not been sent, don't
// send objects either
if (client->getState() < CS_DefinitionsSent)
continue;
RemotePlayer *player = m_env->getPlayer(client->peer_id);
if (player == NULL) {
// This can happen if the client timeouts somehow
/*warningstream<<FUNCTION_NAME<<": Client "
<<client->peer_id
<<" has no associated player"<<std::endl;*/
continue;
}
PlayerSAO *playersao = player->getPlayerSAO();
if (playersao == NULL)
continue;
s16 my_radius = MYMIN(radius, playersao->getWantedRange() * MAP_BLOCKSIZE);
if (my_radius <= 0) my_radius = radius;
//infostream << "Server: Active Radius " << my_radius << std::endl;
std::queue<u16> removed_objects;
std::queue<u16> added_objects;
m_env->getRemovedActiveObjects(playersao, my_radius, player_radius,
client->m_known_objects, removed_objects);
m_env->getAddedActiveObjects(playersao, my_radius, player_radius,
client->m_known_objects, added_objects);
// Ignore if nothing happened
if (removed_objects.empty() && added_objects.empty()) {
continue;
}
std::string data_buffer;
char buf[4];
// Handle removed objects
writeU16((u8*)buf, removed_objects.size());
data_buffer.append(buf, 2);
while (!removed_objects.empty()) {
// Get object
u16 id = removed_objects.front();
ServerActiveObject* obj = m_env->getActiveObject(id);
// Add to data buffer for sending
writeU16((u8*)buf, id);
data_buffer.append(buf, 2);
// Remove from known objects
client->m_known_objects.erase(id);
if(obj && obj->m_known_by_count > 0)
obj->m_known_by_count--;
removed_objects.pop();
}
// Handle added objects
writeU16((u8*)buf, added_objects.size());
data_buffer.append(buf, 2);
while (!added_objects.empty()) {
// Get object
u16 id = added_objects.front();
ServerActiveObject* obj = m_env->getActiveObject(id);
// Get object type
u8 type = ACTIVEOBJECT_TYPE_INVALID;
if(obj == NULL)
warningstream<<FUNCTION_NAME
<<": NULL object"<<std::endl;
else
type = obj->getSendType();
// Add to data buffer for sending
writeU16((u8*)buf, id);
data_buffer.append(buf, 2);
writeU8((u8*)buf, type);
data_buffer.append(buf, 1);
if(obj)
data_buffer.append(serializeLongString(
obj->getClientInitializationData(client->net_proto_version)));
else
data_buffer.append(serializeLongString(""));
// Add to known objects
client->m_known_objects.insert(id);
if(obj)
obj->m_known_by_count++;
added_objects.pop();
}
u32 pktSize = SendActiveObjectRemoveAdd(client->peer_id, data_buffer);
verbosestream << "Server: Sent object remove/add: "
<< removed_objects.size() << " removed, "
<< added_objects.size() << " added, "
<< "packet size is " << pktSize << std::endl;
}
m_clients.unlock();
m_mod_storage_save_timer -= dtime;
if (m_mod_storage_save_timer <= 0.0f) {
infostream << "Saving registered mod storages." << std::endl;
m_mod_storage_save_timer = g_settings->getFloat("server_map_save_interval");
for (UNORDERED_MAP<std::string, ModMetadata *>::const_iterator
it = m_mod_storages.begin(); it != m_mod_storages.end(); ++it) {
if (it->second->isModified()) {
it->second->save(getModStoragePath());
}
}
}
}
/*
Send object messages
*/
{
MutexAutoLock envlock(m_env_mutex);
ScopeProfiler sp(g_profiler, "Server: sending object messages");
// Key = object id
// Value = data sent by object
UNORDERED_MAP<u16, std::vector<ActiveObjectMessage>* > buffered_messages;
// Get active object messages from environment
for(;;) {
ActiveObjectMessage aom = m_env->getActiveObjectMessage();
if (aom.id == 0)
break;
std::vector<ActiveObjectMessage>* message_list = NULL;
UNORDERED_MAP<u16, std::vector<ActiveObjectMessage>* >::iterator n;
n = buffered_messages.find(aom.id);
if (n == buffered_messages.end()) {
message_list = new std::vector<ActiveObjectMessage>;
buffered_messages[aom.id] = message_list;
}
else {
message_list = n->second;
}
message_list->push_back(aom);
}
m_clients.lock();
UNORDERED_MAP<u16, RemoteClient*> clients = m_clients.getClientList();
// Route data to every client
for (UNORDERED_MAP<u16, RemoteClient*>::iterator i = clients.begin();
i != clients.end(); ++i) {
RemoteClient *client = i->second;
std::string reliable_data;
std::string unreliable_data;
// Go through all objects in message buffer
for (UNORDERED_MAP<u16, std::vector<ActiveObjectMessage>* >::iterator
j = buffered_messages.begin();
j != buffered_messages.end(); ++j) {
// If object is not known by client, skip it
u16 id = j->first;
if (client->m_known_objects.find(id) == client->m_known_objects.end())
continue;
// Get message list of object
std::vector<ActiveObjectMessage>* list = j->second;
// Go through every message
for (std::vector<ActiveObjectMessage>::iterator
k = list->begin(); k != list->end(); ++k) {
// Compose the full new data with header
ActiveObjectMessage aom = *k;
std::string new_data;
// Add object id
char buf[2];
writeU16((u8*)&buf[0], aom.id);
new_data.append(buf, 2);
// Add data
new_data += serializeString(aom.datastring);
// Add data to buffer
if(aom.reliable)
reliable_data += new_data;
else
unreliable_data += new_data;
}
}
/*
reliable_data and unreliable_data are now ready.
Send them.
*/
if(reliable_data.size() > 0) {
SendActiveObjectMessages(client->peer_id, reliable_data);
}
if(unreliable_data.size() > 0) {
SendActiveObjectMessages(client->peer_id, unreliable_data, false);
}
}
m_clients.unlock();
// Clear buffered_messages
for (UNORDERED_MAP<u16, std::vector<ActiveObjectMessage>* >::iterator
i = buffered_messages.begin();
i != buffered_messages.end(); ++i) {
delete i->second;
}
}
/*
Send queued-for-sending map edit events.
*/
{
// We will be accessing the environment
MutexAutoLock lock(m_env_mutex);
// Don't send too many at a time
//u32 count = 0;
// Single change sending is disabled if queue size is not small
bool disable_single_change_sending = false;
if(m_unsent_map_edit_queue.size() >= 4)
disable_single_change_sending = true;
int event_count = m_unsent_map_edit_queue.size();
// We'll log the amount of each
Profiler prof;
while(m_unsent_map_edit_queue.size() != 0)
{
MapEditEvent* event = m_unsent_map_edit_queue.front();
m_unsent_map_edit_queue.pop();
// Players far away from the change are stored here.
// Instead of sending the changes, MapBlocks are set not sent
// for them.
std::vector<u16> far_players;
switch (event->type) {
case MEET_ADDNODE:
case MEET_SWAPNODE:
prof.add("MEET_ADDNODE", 1);
sendAddNode(event->p, event->n, event->already_known_by_peer,
&far_players, disable_single_change_sending ? 5 : 30,
event->type == MEET_ADDNODE);
break;
case MEET_REMOVENODE:
prof.add("MEET_REMOVENODE", 1);
sendRemoveNode(event->p, event->already_known_by_peer,
&far_players, disable_single_change_sending ? 5 : 30);
break;
case MEET_BLOCK_NODE_METADATA_CHANGED:
infostream << "Server: MEET_BLOCK_NODE_METADATA_CHANGED" << std::endl;
prof.add("MEET_BLOCK_NODE_METADATA_CHANGED", 1);
setBlockNotSent(event->p);
break;
case MEET_OTHER:
infostream << "Server: MEET_OTHER" << std::endl;
prof.add("MEET_OTHER", 1);
for(std::set<v3s16>::iterator
i = event->modified_blocks.begin();
i != event->modified_blocks.end(); ++i) {
setBlockNotSent(*i);
}
break;
default:
prof.add("unknown", 1);
warningstream << "Server: Unknown MapEditEvent "
<< ((u32)event->type) << std::endl;
break;
}
/*
Set blocks not sent to far players
*/
if(!far_players.empty()) {
// Convert list format to that wanted by SetBlocksNotSent
std::map<v3s16, MapBlock*> modified_blocks2;
for(std::set<v3s16>::iterator
i = event->modified_blocks.begin();
i != event->modified_blocks.end(); ++i) {
modified_blocks2[*i] =
m_env->getMap().getBlockNoCreateNoEx(*i);
}
// Set blocks not sent
for(std::vector<u16>::iterator
i = far_players.begin();
i != far_players.end(); ++i) {
if(RemoteClient *client = getClient(*i))
client->SetBlocksNotSent(modified_blocks2);
}
}
delete event;
/*// Don't send too many at a time
count++;
if(count >= 1 && m_unsent_map_edit_queue.size() < 100)
break;*/
}
if(event_count >= 5){
infostream<<"Server: MapEditEvents:"<<std::endl;
prof.print(infostream);
} else if(event_count != 0){
verbosestream<<"Server: MapEditEvents:"<<std::endl;
prof.print(verbosestream);
}
}
/*
Trigger emergethread (it somehow gets to a non-triggered but
bysy state sometimes)
*/
{
float &counter = m_emergethread_trigger_timer;
counter += dtime;
if (counter >= 2.0) {
counter = 0.0;
m_emerge->startThreads();
}
}
// Save map, players and auth stuff
{
float &counter = m_savemap_timer;
counter += dtime;
static const float save_interval =
g_settings->getFloat("server_map_save_interval");
if (counter >= save_interval) {
counter = 0.0;
MutexAutoLock lock(m_env_mutex);
ScopeProfiler sp(g_profiler, "Server: saving stuff");
// Save ban file
if (m_banmanager->isModified()) {
m_banmanager->save();
}
// Save changed parts of map
m_env->getMap().save(MOD_STATE_WRITE_NEEDED);
// Save players
m_env->saveLoadedPlayers();
// Save environment metadata
m_env->saveMeta();
}
}
}
void Server::Receive()
{
DSTACK(FUNCTION_NAME);
SharedBuffer<u8> data;
u16 peer_id;
try {
NetworkPacket pkt;
m_con.Receive(&pkt);
peer_id = pkt.getPeerId();
ProcessData(&pkt);
}
catch(con::InvalidIncomingDataException &e) {
infostream<<"Server::Receive(): "
"InvalidIncomingDataException: what()="
<<e.what()<<std::endl;
}
catch(SerializationError &e) {
infostream<<"Server::Receive(): "
"SerializationError: what()="
<<e.what()<<std::endl;
}
catch(ClientStateError &e) {
errorstream << "ProcessData: peer=" << peer_id << e.what() << std::endl;
DenyAccess_Legacy(peer_id, L"Your client sent something server didn't expect."
L"Try reconnecting or updating your client");
}
catch(con::PeerNotFoundException &e) {
// Do nothing
}
}
PlayerSAO* Server::StageTwoClientInit(u16 peer_id)
{
std::string playername = "";
PlayerSAO *playersao = NULL;
m_clients.lock();
try {
RemoteClient* client = m_clients.lockedGetClientNoEx(peer_id, CS_InitDone);
if (client != NULL) {
playername = client->getName();
playersao = emergePlayer(playername.c_str(), peer_id, client->net_proto_version);
}
} catch (std::exception &e) {
m_clients.unlock();
throw;
}
m_clients.unlock();
RemotePlayer *player = m_env->getPlayer(playername.c_str());
// If failed, cancel
if ((playersao == NULL) || (player == NULL)) {
if (player && player->peer_id != 0) {
actionstream << "Server: Failed to emerge player \"" << playername
<< "\" (player allocated to an another client)" << std::endl;
DenyAccess_Legacy(peer_id, L"Another client is connected with this "
L"name. If your client closed unexpectedly, try again in "
L"a minute.");
} else {
errorstream << "Server: " << playername << ": Failed to emerge player"
<< std::endl;
DenyAccess_Legacy(peer_id, L"Could not allocate player.");
}
return NULL;
}
/*
Send complete position information
*/
SendMovePlayer(peer_id);
// Send privileges
SendPlayerPrivileges(peer_id);
// Send inventory formspec
SendPlayerInventoryFormspec(peer_id);
// Send inventory
SendInventory(playersao);
// Send HP or death screen
if (playersao->isDead())
SendDeathscreen(peer_id, false, v3f(0,0,0));
else
SendPlayerHPOrDie(playersao);
// Send Breath
SendPlayerBreath(playersao);
// Note things in chat if not in simple singleplayer mode
if (!m_simple_singleplayer_mode && g_settings->getBool("show_statusline_on_connect")) {
// Send information about server to player in chat
SendChatMessage(peer_id, getStatusString());
}
Address addr = getPeerAddress(player->peer_id);
std::string ip_str = addr.serializeString();
actionstream<<player->getName() <<" [" << ip_str << "] joins game. " << std::endl;
/*
Print out action
*/
{
const std::vector<std::string> &names = m_clients.getPlayerNames();
actionstream << player->getName() << " joins game. List of players: ";
for (std::vector<std::string>::const_iterator i = names.begin();
i != names.end(); ++i) {
actionstream << *i << " ";
}
actionstream << player->getName() <<std::endl;
}
return playersao;
}
inline void Server::handleCommand(NetworkPacket* pkt)
{
const ToServerCommandHandler& opHandle = toServerCommandTable[pkt->getCommand()];
(this->*opHandle.handler)(pkt);
}
void Server::ProcessData(NetworkPacket *pkt)
{
DSTACK(FUNCTION_NAME);
// Environment is locked first.
MutexAutoLock envlock(m_env_mutex);
ScopeProfiler sp(g_profiler, "Server::ProcessData");
u32 peer_id = pkt->getPeerId();
try {
Address address = getPeerAddress(peer_id);
std::string addr_s = address.serializeString();
if(m_banmanager->isIpBanned(addr_s)) {
std::string ban_name = m_banmanager->getBanName(addr_s);
infostream << "Server: A banned client tried to connect from "
<< addr_s << "; banned name was "
<< ban_name << std::endl;
// This actually doesn't seem to transfer to the client
DenyAccess_Legacy(peer_id, L"Your ip is banned. Banned name was "
+ utf8_to_wide(ban_name));
return;
}
}
catch(con::PeerNotFoundException &e) {
/*
* no peer for this packet found
* most common reason is peer timeout, e.g. peer didn't
* respond for some time, your server was overloaded or
* things like that.
*/
infostream << "Server::ProcessData(): Canceling: peer "
<< peer_id << " not found" << std::endl;
return;
}
try {
ToServerCommand command = (ToServerCommand) pkt->getCommand();
// Command must be handled into ToServerCommandHandler
if (command >= TOSERVER_NUM_MSG_TYPES) {
infostream << "Server: Ignoring unknown command "
<< command << std::endl;
return;
}
if (toServerCommandTable[command].state == TOSERVER_STATE_NOT_CONNECTED) {
handleCommand(pkt);
return;
}
u8 peer_ser_ver = getClient(peer_id, CS_InitDone)->serialization_version;
if(peer_ser_ver == SER_FMT_VER_INVALID) {
errorstream << "Server::ProcessData(): Cancelling: Peer"
" serialization format invalid or not initialized."
" Skipping incoming command=" << command << std::endl;
return;
}
/* Handle commands related to client startup */
if (toServerCommandTable[command].state == TOSERVER_STATE_STARTUP) {
handleCommand(pkt);
return;
}
if (m_clients.getClientState(peer_id) < CS_Active) {
if (command == TOSERVER_PLAYERPOS) return;
errorstream << "Got packet command: " << command << " for peer id "
<< peer_id << " but client isn't active yet. Dropping packet "
<< std::endl;
return;
}
handleCommand(pkt);
} catch (SendFailedException &e) {
errorstream << "Server::ProcessData(): SendFailedException: "
<< "what=" << e.what()
<< std::endl;
} catch (PacketError &e) {
actionstream << "Server::ProcessData(): PacketError: "
<< "what=" << e.what()
<< std::endl;
}
}
void Server::setTimeOfDay(u32 time)
{
m_env->setTimeOfDay(time);
m_time_of_day_send_timer = 0;
}
void Server::onMapEditEvent(MapEditEvent *event)
{
if(m_ignore_map_edit_events)
return;
if(m_ignore_map_edit_events_area.contains(event->getArea()))
return;
MapEditEvent *e = event->clone();
m_unsent_map_edit_queue.push(e);
}
Inventory* Server::getInventory(const InventoryLocation &loc)
{
switch (loc.type) {
case InventoryLocation::UNDEFINED:
case InventoryLocation::CURRENT_PLAYER:
break;
case InventoryLocation::PLAYER:
{
RemotePlayer *player = dynamic_cast<RemotePlayer *>(m_env->getPlayer(loc.name.c_str()));
if(!player)
return NULL;
PlayerSAO *playersao = player->getPlayerSAO();
if(!playersao)
return NULL;
return playersao->getInventory();
}
break;
case InventoryLocation::NODEMETA:
{
NodeMetadata *meta = m_env->getMap().getNodeMetadata(loc.p);
if(!meta)
return NULL;
return meta->getInventory();
}
break;
case InventoryLocation::DETACHED:
{
if(m_detached_inventories.count(loc.name) == 0)
return NULL;
return m_detached_inventories[loc.name];
}
break;
default:
sanity_check(false); // abort
break;
}
return NULL;
}
void Server::setInventoryModified(const InventoryLocation &loc, bool playerSend)
{
switch(loc.type){
case InventoryLocation::UNDEFINED:
break;
case InventoryLocation::PLAYER:
{
if (!playerSend)
return;
RemotePlayer *player =
dynamic_cast<RemotePlayer *>(m_env->getPlayer(loc.name.c_str()));
if (!player)
return;
PlayerSAO *playersao = player->getPlayerSAO();
if(!playersao)
return;
SendInventory(playersao);
}
break;
case InventoryLocation::NODEMETA:
{
v3s16 blockpos = getNodeBlockPos(loc.p);
MapBlock *block = m_env->getMap().getBlockNoCreateNoEx(blockpos);
if(block)
block->raiseModified(MOD_STATE_WRITE_NEEDED);
setBlockNotSent(blockpos);
}
break;
case InventoryLocation::DETACHED:
{
sendDetachedInventory(loc.name,PEER_ID_INEXISTENT);
}
break;
default:
sanity_check(false); // abort
break;
}
}
void Server::SetBlocksNotSent(std::map<v3s16, MapBlock *>& block)
{
std::vector<u16> clients = m_clients.getClientIDs();
m_clients.lock();
// Set the modified blocks unsent for all the clients
for (std::vector<u16>::iterator i = clients.begin();
i != clients.end(); ++i) {
if (RemoteClient *client = m_clients.lockedGetClientNoEx(*i))
client->SetBlocksNotSent(block);
}
m_clients.unlock();
}
void Server::peerAdded(con::Peer *peer)
{
DSTACK(FUNCTION_NAME);
verbosestream<<"Server::peerAdded(): peer->id="
<<peer->id<<std::endl;
con::PeerChange c;
c.type = con::PEER_ADDED;
c.peer_id = peer->id;
c.timeout = false;
m_peer_change_queue.push(c);
}
void Server::deletingPeer(con::Peer *peer, bool timeout)
{
DSTACK(FUNCTION_NAME);
verbosestream<<"Server::deletingPeer(): peer->id="
<<peer->id<<", timeout="<<timeout<<std::endl;
m_clients.event(peer->id, CSE_Disconnect);
con::PeerChange c;
c.type = con::PEER_REMOVED;
c.peer_id = peer->id;
c.timeout = timeout;
m_peer_change_queue.push(c);
}
bool Server::getClientConInfo(u16 peer_id, con::rtt_stat_type type, float* retval)
{
*retval = m_con.getPeerStat(peer_id,type);
if (*retval == -1) return false;
return true;
}
bool Server::getClientInfo(
u16 peer_id,
ClientState* state,
u32* uptime,
u8* ser_vers,
u16* prot_vers,
u8* major,
u8* minor,
u8* patch,
std::string* vers_string
)
{
*state = m_clients.getClientState(peer_id);
m_clients.lock();
RemoteClient* client = m_clients.lockedGetClientNoEx(peer_id, CS_Invalid);
if (client == NULL) {
m_clients.unlock();
return false;
}
*uptime = client->uptime();
*ser_vers = client->serialization_version;
*prot_vers = client->net_proto_version;
*major = client->getMajor();
*minor = client->getMinor();
*patch = client->getPatch();
*vers_string = client->getPatch();
m_clients.unlock();
return true;
}
void Server::handlePeerChanges()
{
while(m_peer_change_queue.size() > 0)
{
con::PeerChange c = m_peer_change_queue.front();
m_peer_change_queue.pop();
verbosestream<<"Server: Handling peer change: "
<<"id="<<c.peer_id<<", timeout="<<c.timeout
<<std::endl;
switch(c.type)
{
case con::PEER_ADDED:
m_clients.CreateClient(c.peer_id);
break;
case con::PEER_REMOVED:
DeleteClient(c.peer_id, c.timeout?CDR_TIMEOUT:CDR_LEAVE);
break;
default:
FATAL_ERROR("Invalid peer change event received!");
break;
}
}
}
void Server::printToConsoleOnly(const std::string &text)
{
if (m_admin_chat) {
m_admin_chat->outgoing_queue.push_back(
new ChatEventChat("", utf8_to_wide(text)));
} else {
std::cout << text << std::endl;
}
}
void Server::Send(NetworkPacket* pkt)
{
m_clients.send(pkt->getPeerId(),
clientCommandFactoryTable[pkt->getCommand()].channel,
pkt,
clientCommandFactoryTable[pkt->getCommand()].reliable);
}
void Server::SendMovement(u16 peer_id)
{
DSTACK(FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
NetworkPacket pkt(TOCLIENT_MOVEMENT, 12 * sizeof(float), peer_id);
pkt << g_settings->getFloat("movement_acceleration_default");
pkt << g_settings->getFloat("movement_acceleration_air");
pkt << g_settings->getFloat("movement_acceleration_fast");
pkt << g_settings->getFloat("movement_speed_walk");
pkt << g_settings->getFloat("movement_speed_crouch");
pkt << g_settings->getFloat("movement_speed_fast");
pkt << g_settings->getFloat("movement_speed_climb");
pkt << g_settings->getFloat("movement_speed_jump");
pkt << g_settings->getFloat("movement_liquid_fluidity");
pkt << g_settings->getFloat("movement_liquid_fluidity_smooth");
pkt << g_settings->getFloat("movement_liquid_sink");
pkt << g_settings->getFloat("movement_gravity");
Send(&pkt);
}
void Server::SendPlayerHPOrDie(PlayerSAO *playersao)
{
if (!g_settings->getBool("enable_damage"))
return;
u16 peer_id = playersao->getPeerID();
bool is_alive = playersao->getHP() > 0;
if (is_alive)
SendPlayerHP(peer_id);
else
DiePlayer(peer_id);
}
void Server::SendHP(u16 peer_id, u8 hp)
{
DSTACK(FUNCTION_NAME);
NetworkPacket pkt(TOCLIENT_HP, 1, peer_id);
pkt << hp;
Send(&pkt);
}
void Server::SendBreath(u16 peer_id, u16 breath)
{
DSTACK(FUNCTION_NAME);
NetworkPacket pkt(TOCLIENT_BREATH, 2, peer_id);
pkt << (u16) breath;
Send(&pkt);
}
void Server::SendAccessDenied(u16 peer_id, AccessDeniedCode reason,
const std::string &custom_reason, bool reconnect)
{
assert(reason < SERVER_ACCESSDENIED_MAX);
NetworkPacket pkt(TOCLIENT_ACCESS_DENIED, 1, peer_id);
pkt << (u8)reason;
if (reason == SERVER_ACCESSDENIED_CUSTOM_STRING)
pkt << custom_reason;
else if (reason == SERVER_ACCESSDENIED_SHUTDOWN ||
reason == SERVER_ACCESSDENIED_CRASH)
pkt << custom_reason << (u8)reconnect;
Send(&pkt);
}
void Server::SendAccessDenied_Legacy(u16 peer_id,const std::wstring &reason)
{
DSTACK(FUNCTION_NAME);
NetworkPacket pkt(TOCLIENT_ACCESS_DENIED_LEGACY, 0, peer_id);
pkt << reason;
Send(&pkt);
}
void Server::SendDeathscreen(u16 peer_id,bool set_camera_point_target,
v3f camera_point_target)
{
DSTACK(FUNCTION_NAME);
NetworkPacket pkt(TOCLIENT_DEATHSCREEN, 1 + sizeof(v3f), peer_id);
pkt << set_camera_point_target << camera_point_target;
Send(&pkt);
}
void Server::SendItemDef(u16 peer_id,
IItemDefManager *itemdef, u16 protocol_version)
{
DSTACK(FUNCTION_NAME);
NetworkPacket pkt(TOCLIENT_ITEMDEF, 0, peer_id);
/*
u16 command
u32 length of the next item
zlib-compressed serialized ItemDefManager
*/
std::ostringstream tmp_os(std::ios::binary);
itemdef->serialize(tmp_os, protocol_version);
std::ostringstream tmp_os2(std::ios::binary);
compressZlib(tmp_os.str(), tmp_os2);
pkt.putLongString(tmp_os2.str());
// Make data buffer
verbosestream << "Server: Sending item definitions to id(" << peer_id
<< "): size=" << pkt.getSize() << std::endl;
Send(&pkt);
}
void Server::SendNodeDef(u16 peer_id,
INodeDefManager *nodedef, u16 protocol_version)
{
DSTACK(FUNCTION_NAME);
NetworkPacket pkt(TOCLIENT_NODEDEF, 0, peer_id);
/*
u16 command
u32 length of the next item
zlib-compressed serialized NodeDefManager
*/
std::ostringstream tmp_os(std::ios::binary);
nodedef->serialize(tmp_os, protocol_version);
std::ostringstream tmp_os2(std::ios::binary);
compressZlib(tmp_os.str(), tmp_os2);
pkt.putLongString(tmp_os2.str());
// Make data buffer
verbosestream << "Server: Sending node definitions to id(" << peer_id
<< "): size=" << pkt.getSize() << std::endl;
Send(&pkt);
}
/*
Non-static send methods
*/
void Server::SendInventory(PlayerSAO* playerSAO)
{
DSTACK(FUNCTION_NAME);
UpdateCrafting(playerSAO->getPlayer());
/*
Serialize it
*/
NetworkPacket pkt(TOCLIENT_INVENTORY, 0, playerSAO->getPeerID());
std::ostringstream os;
playerSAO->getInventory()->serialize(os);
std::string s = os.str();
pkt.putRawString(s.c_str(), s.size());
Send(&pkt);
}
void Server::SendChatMessage(u16 peer_id, const std::wstring &message)
{
DSTACK(FUNCTION_NAME);
NetworkPacket pkt(TOCLIENT_CHAT_MESSAGE, 0, peer_id);
pkt << message;
if (peer_id != PEER_ID_INEXISTENT) {
Send(&pkt);
}
else {
m_clients.sendToAll(0, &pkt, true);
}
}
void Server::SendShowFormspecMessage(u16 peer_id, const std::string &formspec,
const std::string &formname)
{
DSTACK(FUNCTION_NAME);
NetworkPacket pkt(TOCLIENT_SHOW_FORMSPEC, 0 , peer_id);
if (formspec == "" ){
//the client should close the formspec
pkt.putLongString("");
} else {
pkt.putLongString(FORMSPEC_VERSION_STRING + formspec);
}
pkt << formname;
Send(&pkt);
}
// Spawns a particle on peer with peer_id
void Server::SendSpawnParticle(u16 peer_id, u16 protocol_version,
v3f pos, v3f velocity, v3f acceleration,
float expirationtime, float size, bool collisiondetection,
bool collision_removal,
bool vertical, const std::string &texture,
const struct TileAnimationParams &animation, u8 glow)
{
DSTACK(FUNCTION_NAME);
if (peer_id == PEER_ID_INEXISTENT) {
// This sucks and should be replaced by a better solution in a refactor:
std::vector<u16> clients = m_clients.getClientIDs();
for (std::vector<u16>::iterator i = clients.begin(); i != clients.end(); ++i) {
RemotePlayer *player = m_env->getPlayer(*i);
if (!player)
continue;
SendSpawnParticle(*i, player->protocol_version,
pos, velocity, acceleration,
expirationtime, size, collisiondetection,
collision_removal, vertical, texture, animation, glow);
}
return;
}
NetworkPacket pkt(TOCLIENT_SPAWN_PARTICLE, 0, peer_id);
pkt << pos << velocity << acceleration << expirationtime
<< size << collisiondetection;
pkt.putLongString(texture);
pkt << vertical;
pkt << collision_removal;
// This is horrible but required (why are there two ways to serialize pkts?)
std::ostringstream os(std::ios_base::binary);
animation.serialize(os, protocol_version);
pkt.putRawString(os.str());
pkt << glow;
Send(&pkt);
}
// Adds a ParticleSpawner on peer with peer_id
void Server::SendAddParticleSpawner(u16 peer_id, u16 protocol_version,
u16 amount, float spawntime, v3f minpos, v3f maxpos,
v3f minvel, v3f maxvel, v3f minacc, v3f maxacc, float minexptime, float maxexptime,
float minsize, float maxsize, bool collisiondetection, bool collision_removal,
u16 attached_id, bool vertical, const std::string &texture, u32 id,
const struct TileAnimationParams &animation, u8 glow)
{
DSTACK(FUNCTION_NAME);
if (peer_id == PEER_ID_INEXISTENT) {
// This sucks and should be replaced:
std::vector<u16> clients = m_clients.getClientIDs();
for (std::vector<u16>::iterator i = clients.begin(); i != clients.end(); ++i) {
RemotePlayer *player = m_env->getPlayer(*i);
if (!player)
continue;
SendAddParticleSpawner(*i, player->protocol_version,
amount, spawntime, minpos, maxpos,
minvel, maxvel, minacc, maxacc, minexptime, maxexptime,
minsize, maxsize, collisiondetection, collision_removal,
attached_id, vertical, texture, id, animation, glow);
}
return;
}
NetworkPacket pkt(TOCLIENT_ADD_PARTICLESPAWNER, 0, peer_id);
pkt << amount << spawntime << minpos << maxpos << minvel << maxvel
<< minacc << maxacc << minexptime << maxexptime << minsize
<< maxsize << collisiondetection;
pkt.putLongString(texture);
pkt << id << vertical;
pkt << collision_removal;
pkt << attached_id;
// This is horrible but required
std::ostringstream os(std::ios_base::binary);
animation.serialize(os, protocol_version);
pkt.putRawString(os.str());
pkt << glow;
Send(&pkt);
}
void Server::SendDeleteParticleSpawner(u16 peer_id, u32 id)
{
DSTACK(FUNCTION_NAME);
NetworkPacket pkt(TOCLIENT_DELETE_PARTICLESPAWNER_LEGACY, 2, peer_id);
// Ugly error in this packet
pkt << (u16) id;
if (peer_id != PEER_ID_INEXISTENT) {
Send(&pkt);
}
else {
m_clients.sendToAll(0, &pkt, true);
}
}
void Server::SendHUDAdd(u16 peer_id, u32 id, HudElement *form)
{
NetworkPacket pkt(TOCLIENT_HUDADD, 0 , peer_id);
pkt << id << (u8) form->type << form->pos << form->name << form->scale
<< form->text << form->number << form->item << form->dir
<< form->align << form->offset << form->world_pos << form->size;
Send(&pkt);
}
void Server::SendHUDRemove(u16 peer_id, u32 id)
{
NetworkPacket pkt(TOCLIENT_HUDRM, 4, peer_id);
pkt << id;
Send(&pkt);
}
void Server::SendHUDChange(u16 peer_id, u32 id, HudElementStat stat, void *value)
{
NetworkPacket pkt(TOCLIENT_HUDCHANGE, 0, peer_id);
pkt << id << (u8) stat;
switch (stat) {
case HUD_STAT_POS:
case HUD_STAT_SCALE:
case HUD_STAT_ALIGN:
case HUD_STAT_OFFSET:
pkt << *(v2f *) value;
break;
case HUD_STAT_NAME:
case HUD_STAT_TEXT:
pkt << *(std::string *) value;
break;
case HUD_STAT_WORLD_POS:
pkt << *(v3f *) value;
break;
case HUD_STAT_SIZE:
pkt << *(v2s32 *) value;
break;
case HUD_STAT_NUMBER:
case HUD_STAT_ITEM:
case HUD_STAT_DIR:
default:
pkt << *(u32 *) value;
break;
}
Send(&pkt);
}
void Server::SendHUDSetFlags(u16 peer_id, u32 flags, u32 mask)
{
NetworkPacket pkt(TOCLIENT_HUD_SET_FLAGS, 4 + 4, peer_id);
flags &= ~(HUD_FLAG_HEALTHBAR_VISIBLE | HUD_FLAG_BREATHBAR_VISIBLE);
pkt << flags << mask;
Send(&pkt);
}
void Server::SendHUDSetParam(u16 peer_id, u16 param, const std::string &value)
{
NetworkPacket pkt(TOCLIENT_HUD_SET_PARAM, 0, peer_id);
pkt << param << value;
Send(&pkt);
}
void Server::SendSetSky(u16 peer_id, const video::SColor &bgcolor,
const std::string &type, const std::vector<std::string> &params)
{
NetworkPacket pkt(TOCLIENT_SET_SKY, 0, peer_id);
pkt << bgcolor << type << (u16) params.size();
for(size_t i=0; i<params.size(); i++)
pkt << params[i];
Send(&pkt);
}
void Server::SendOverrideDayNightRatio(u16 peer_id, bool do_override,
float ratio)
{
NetworkPacket pkt(TOCLIENT_OVERRIDE_DAY_NIGHT_RATIO,
1 + 2, peer_id);
pkt << do_override << (u16) (ratio * 65535);
Send(&pkt);
}
void Server::SendTimeOfDay(u16 peer_id, u16 time, f32 time_speed)
{
DSTACK(FUNCTION_NAME);
NetworkPacket pkt(TOCLIENT_TIME_OF_DAY, 0, peer_id);
pkt << time << time_speed;
if (peer_id == PEER_ID_INEXISTENT) {
m_clients.sendToAll(0, &pkt, true);
}
else {
Send(&pkt);
}
}
void Server::SendPlayerHP(u16 peer_id)
{
DSTACK(FUNCTION_NAME);
PlayerSAO *playersao = getPlayerSAO(peer_id);
// In some rare case if the player is disconnected
// while Lua call l_punch, for example, this can be NULL
if (!playersao)
return;
SendHP(peer_id, playersao->getHP());
m_script->player_event(playersao,"health_changed");
// Send to other clients
std::string str = gob_cmd_punched(playersao->readDamage(), playersao->getHP());
ActiveObjectMessage aom(playersao->getId(), true, str);
playersao->m_messages_out.push(aom);
}
void Server::SendPlayerBreath(PlayerSAO *sao)
{
DSTACK(FUNCTION_NAME);
assert(sao);
m_script->player_event(sao, "breath_changed");
SendBreath(sao->getPeerID(), sao->getBreath());
}
void Server::SendMovePlayer(u16 peer_id)
{
DSTACK(FUNCTION_NAME);
RemotePlayer *player = m_env->getPlayer(peer_id);
assert(player);
PlayerSAO *sao = player->getPlayerSAO();
assert(sao);
NetworkPacket pkt(TOCLIENT_MOVE_PLAYER, sizeof(v3f) + sizeof(f32) * 2, peer_id);
pkt << sao->getBasePosition() << sao->getPitch() << sao->getYaw();
{
v3f pos = sao->getBasePosition();
verbosestream << "Server: Sending TOCLIENT_MOVE_PLAYER"
<< " pos=(" << pos.X << "," << pos.Y << "," << pos.Z << ")"
<< " pitch=" << sao->getPitch()
<< " yaw=" << sao->getYaw()
<< std::endl;
}
Send(&pkt);
}
void Server::SendLocalPlayerAnimations(u16 peer_id, v2s32 animation_frames[4], f32 animation_speed)
{
NetworkPacket pkt(TOCLIENT_LOCAL_PLAYER_ANIMATIONS, 0,
peer_id);
pkt << animation_frames[0] << animation_frames[1] << animation_frames[2]
<< animation_frames[3] << animation_speed;
Send(&pkt);
}
void Server::SendEyeOffset(u16 peer_id, v3f first, v3f third)
{
NetworkPacket pkt(TOCLIENT_EYE_OFFSET, 0, peer_id);
pkt << first << third;
Send(&pkt);
}
void Server::SendPlayerPrivileges(u16 peer_id)
{
RemotePlayer *player = m_env->getPlayer(peer_id);
assert(player);
if(player->peer_id == PEER_ID_INEXISTENT)
return;
std::set<std::string> privs;
m_script->getAuth(player->getName(), NULL, &privs);
NetworkPacket pkt(TOCLIENT_PRIVILEGES, 0, peer_id);
pkt << (u16) privs.size();
for(std::set<std::string>::const_iterator i = privs.begin();
i != privs.end(); ++i) {
pkt << (*i);
}
Send(&pkt);
}
void Server::SendPlayerInventoryFormspec(u16 peer_id)
{
RemotePlayer *player = m_env->getPlayer(peer_id);
assert(player);
if(player->peer_id == PEER_ID_INEXISTENT)
return;
NetworkPacket pkt(TOCLIENT_INVENTORY_FORMSPEC, 0, peer_id);
pkt.putLongString(FORMSPEC_VERSION_STRING + player->inventory_formspec);
Send(&pkt);
}
u32 Server::SendActiveObjectRemoveAdd(u16 peer_id, const std::string &datas)
{
NetworkPacket pkt(TOCLIENT_ACTIVE_OBJECT_REMOVE_ADD, datas.size(), peer_id);
pkt.putRawString(datas.c_str(), datas.size());
Send(&pkt);
return pkt.getSize();
}
void Server::SendActiveObjectMessages(u16 peer_id, const std::string &datas, bool reliable)
{
NetworkPacket pkt(TOCLIENT_ACTIVE_OBJECT_MESSAGES,
datas.size(), peer_id);
pkt.putRawString(datas.c_str(), datas.size());
m_clients.send(pkt.getPeerId(),
reliable ? clientCommandFactoryTable[pkt.getCommand()].channel : 1,
&pkt, reliable);
}
s32 Server::playSound(const SimpleSoundSpec &spec,
const ServerSoundParams &params)
{
// Find out initial position of sound
bool pos_exists = false;
v3f pos = params.getPos(m_env, &pos_exists);
// If position is not found while it should be, cancel sound
if(pos_exists != (params.type != ServerSoundParams::SSP_LOCAL))
return -1;
// Filter destination clients
std::vector<u16> dst_clients;
if(params.to_player != "")
{
RemotePlayer *player = m_env->getPlayer(params.to_player.c_str());
if(!player){
infostream<<"Server::playSound: Player \""<<params.to_player
<<"\" not found"<<std::endl;
return -1;
}
if(player->peer_id == PEER_ID_INEXISTENT){
infostream<<"Server::playSound: Player \""<<params.to_player
<<"\" not connected"<<std::endl;
return -1;
}
dst_clients.push_back(player->peer_id);
}
else {
std::vector<u16> clients = m_clients.getClientIDs();
for (std::vector<u16>::iterator i = clients.begin(); i != clients.end(); ++i) {
RemotePlayer *player = m_env->getPlayer(*i);
if (!player)
continue;
PlayerSAO *sao = player->getPlayerSAO();
if (!sao)
continue;
if (pos_exists) {
if(sao->getBasePosition().getDistanceFrom(pos) >
params.max_hear_distance)
continue;
}
dst_clients.push_back(*i);
}
}
if(dst_clients.empty())
return -1;
// Create the sound
s32 id = m_next_sound_id++;
// The sound will exist as a reference in m_playing_sounds
m_playing_sounds[id] = ServerPlayingSound();
ServerPlayingSound &psound = m_playing_sounds[id];
psound.params = params;
NetworkPacket pkt(TOCLIENT_PLAY_SOUND, 0);
pkt << id << spec.name << (float) (spec.gain * params.gain)
<< (u8) params.type << pos << params.object << params.loop;
for(std::vector<u16>::iterator i = dst_clients.begin();
i != dst_clients.end(); ++i) {
psound.clients.insert(*i);
m_clients.send(*i, 0, &pkt, true);
}
return id;
}
void Server::stopSound(s32 handle)
{
// Get sound reference
UNORDERED_MAP<s32, ServerPlayingSound>::iterator i = m_playing_sounds.find(handle);
if (i == m_playing_sounds.end())
return;
ServerPlayingSound &psound = i->second;
NetworkPacket pkt(TOCLIENT_STOP_SOUND, 4);
pkt << handle;
for (UNORDERED_SET<u16>::iterator i = psound.clients.begin();
i != psound.clients.end(); ++i) {
// Send as reliable
m_clients.send(*i, 0, &pkt, true);
}
// Remove sound reference
m_playing_sounds.erase(i);
}
void Server::sendRemoveNode(v3s16 p, u16 ignore_id,
std::vector<u16> *far_players, float far_d_nodes)
{
float maxd = far_d_nodes*BS;
v3f p_f = intToFloat(p, BS);
NetworkPacket pkt(TOCLIENT_REMOVENODE, 6);
pkt << p;
std::vector<u16> clients = m_clients.getClientIDs();
for (std::vector<u16>::iterator i = clients.begin(); i != clients.end(); ++i) {
if (far_players) {
// Get player
if (RemotePlayer *player = m_env->getPlayer(*i)) {
PlayerSAO *sao = player->getPlayerSAO();
if (!sao)
continue;
// If player is far away, only set modified blocks not sent
v3f player_pos = sao->getBasePosition();
if (player_pos.getDistanceFrom(p_f) > maxd) {
far_players->push_back(*i);
continue;
}
}
}
// Send as reliable
m_clients.send(*i, 0, &pkt, true);
}
}
void Server::sendAddNode(v3s16 p, MapNode n, u16 ignore_id,
std::vector<u16> *far_players, float far_d_nodes,
bool remove_metadata)
{
float maxd = far_d_nodes*BS;
v3f p_f = intToFloat(p, BS);
std::vector<u16> clients = m_clients.getClientIDs();
for(std::vector<u16>::iterator i = clients.begin(); i != clients.end(); ++i) {
if (far_players) {
// Get player
if (RemotePlayer *player = m_env->getPlayer(*i)) {
PlayerSAO *sao = player->getPlayerSAO();
if (!sao)
continue;
// If player is far away, only set modified blocks not sent
v3f player_pos = sao->getBasePosition();
if(player_pos.getDistanceFrom(p_f) > maxd) {
far_players->push_back(*i);
continue;
}
}
}
NetworkPacket pkt(TOCLIENT_ADDNODE, 6 + 2 + 1 + 1 + 1);
m_clients.lock();
RemoteClient* client = m_clients.lockedGetClientNoEx(*i);
if (client != 0) {
pkt << p << n.param0 << n.param1 << n.param2
<< (u8) (remove_metadata ? 0 : 1);
}
m_clients.unlock();
// Send as reliable
if (pkt.getSize() > 0)
m_clients.send(*i, 0, &pkt, true);
}
}
void Server::setBlockNotSent(v3s16 p)
{
std::vector<u16> clients = m_clients.getClientIDs();
m_clients.lock();
for(std::vector<u16>::iterator i = clients.begin();
i != clients.end(); ++i) {
RemoteClient *client = m_clients.lockedGetClientNoEx(*i);
client->SetBlockNotSent(p);
}
m_clients.unlock();
}
void Server::SendBlockNoLock(u16 peer_id, MapBlock *block, u8 ver, u16 net_proto_version)
{
DSTACK(FUNCTION_NAME);
v3s16 p = block->getPos();
/*
Create a packet with the block in the right format
*/
std::ostringstream os(std::ios_base::binary);
block->serialize(os, ver, false);
block->serializeNetworkSpecific(os);
std::string s = os.str();
NetworkPacket pkt(TOCLIENT_BLOCKDATA, 2 + 2 + 2 + 2 + s.size(), peer_id);
pkt << p;
pkt.putRawString(s.c_str(), s.size());
Send(&pkt);
}
void Server::SendBlocks(float dtime)
{
DSTACK(FUNCTION_NAME);
MutexAutoLock envlock(m_env_mutex);
//TODO check if one big lock could be faster then multiple small ones
ScopeProfiler sp(g_profiler, "Server: sel and send blocks to clients");
std::vector<PrioritySortedBlockTransfer> queue;
s32 total_sending = 0;
{
ScopeProfiler sp(g_profiler, "Server: selecting blocks for sending");
std::vector<u16> clients = m_clients.getClientIDs();
m_clients.lock();
for(std::vector<u16>::iterator i = clients.begin();
i != clients.end(); ++i) {
RemoteClient *client = m_clients.lockedGetClientNoEx(*i, CS_Active);
if (client == NULL)
continue;
total_sending += client->SendingCount();
client->GetNextBlocks(m_env,m_emerge, dtime, queue);
}
m_clients.unlock();
}
// Sort.
// Lowest priority number comes first.
// Lowest is most important.
std::sort(queue.begin(), queue.end());
m_clients.lock();
for(u32 i=0; i<queue.size(); i++)
{
//TODO: Calculate limit dynamically
if(total_sending >= g_settings->getS32
("max_simultaneous_block_sends_server_total"))
break;
PrioritySortedBlockTransfer q = queue[i];
MapBlock *block = NULL;
try
{
block = m_env->getMap().getBlockNoCreate(q.pos);
}
catch(InvalidPositionException &e)
{
continue;
}
RemoteClient *client = m_clients.lockedGetClientNoEx(q.peer_id, CS_Active);
if(!client)
continue;
SendBlockNoLock(q.peer_id, block, client->serialization_version, client->net_proto_version);
client->SentBlock(q.pos);
total_sending++;
}
m_clients.unlock();
}
void Server::fillMediaCache()
{
DSTACK(FUNCTION_NAME);
infostream<<"Server: Calculating media file checksums"<<std::endl;
// Collect all media file paths
std::vector<std::string> paths;
for(std::vector<ModSpec>::iterator i = m_mods.begin();
i != m_mods.end(); ++i) {
const ModSpec &mod = *i;
paths.push_back(mod.path + DIR_DELIM + "textures");
paths.push_back(mod.path + DIR_DELIM + "sounds");
paths.push_back(mod.path + DIR_DELIM + "media");
paths.push_back(mod.path + DIR_DELIM + "models");
}
paths.push_back(porting::path_user + DIR_DELIM + "textures" + DIR_DELIM + "server");
// Collect media file information from paths into cache
for(std::vector<std::string>::iterator i = paths.begin();
i != paths.end(); ++i) {
std::string mediapath = *i;
std::vector<fs::DirListNode> dirlist = fs::GetDirListing(mediapath);
for (u32 j = 0; j < dirlist.size(); j++) {
if (dirlist[j].dir) // Ignode dirs
continue;
std::string filename = dirlist[j].name;
// If name contains illegal characters, ignore the file
if (!string_allowed(filename, TEXTURENAME_ALLOWED_CHARS)) {
infostream<<"Server: ignoring illegal file name: \""
<< filename << "\"" << std::endl;
continue;
}
// If name is not in a supported format, ignore it
const char *supported_ext[] = {
".png", ".jpg", ".bmp", ".tga",
".pcx", ".ppm", ".psd", ".wal", ".rgb",
".ogg",
".x", ".b3d", ".md2", ".obj",
NULL
};
if (removeStringEnd(filename, supported_ext) == ""){
infostream << "Server: ignoring unsupported file extension: \""
<< filename << "\"" << std::endl;
continue;
}
// Ok, attempt to load the file and add to cache
std::string filepath = mediapath + DIR_DELIM + filename;
// Read data
std::ifstream fis(filepath.c_str(), std::ios_base::binary);
if (!fis.good()) {
errorstream << "Server::fillMediaCache(): Could not open \""
<< filename << "\" for reading" << std::endl;
continue;
}
std::ostringstream tmp_os(std::ios_base::binary);
bool bad = false;
for(;;) {
char buf[1024];
fis.read(buf, 1024);
std::streamsize len = fis.gcount();
tmp_os.write(buf, len);
if (fis.eof())
break;
if (!fis.good()) {
bad = true;
break;
}
}
if(bad) {
errorstream<<"Server::fillMediaCache(): Failed to read \""
<< filename << "\"" << std::endl;
continue;
}
if(tmp_os.str().length() == 0) {
errorstream << "Server::fillMediaCache(): Empty file \""
<< filepath << "\"" << std::endl;
continue;
}
SHA1 sha1;
sha1.addBytes(tmp_os.str().c_str(), tmp_os.str().length());
unsigned char *digest = sha1.getDigest();
std::string sha1_base64 = base64_encode(digest, 20);
std::string sha1_hex = hex_encode((char*)digest, 20);
free(digest);
// Put in list
m_media[filename] = MediaInfo(filepath, sha1_base64);
verbosestream << "Server: " << sha1_hex << " is " << filename
<< std::endl;
}
}
}
void Server::sendMediaAnnouncement(u16 peer_id)
{
DSTACK(FUNCTION_NAME);
verbosestream << "Server: Announcing files to id(" << peer_id << ")"
<< std::endl;
// Make packet
std::ostringstream os(std::ios_base::binary);
NetworkPacket pkt(TOCLIENT_ANNOUNCE_MEDIA, 0, peer_id);
pkt << (u16) m_media.size();
for (UNORDERED_MAP<std::string, MediaInfo>::iterator i = m_media.begin();
i != m_media.end(); ++i) {
pkt << i->first << i->second.sha1_digest;
}
pkt << g_settings->get("remote_media");
Send(&pkt);
}
struct SendableMedia
{
std::string name;
std::string path;
std::string data;
SendableMedia(const std::string &name_="", const std::string &path_="",
const std::string &data_=""):
name(name_),
path(path_),
data(data_)
{}
};
void Server::sendRequestedMedia(u16 peer_id,
const std::vector<std::string> &tosend)
{
DSTACK(FUNCTION_NAME);
verbosestream<<"Server::sendRequestedMedia(): "
<<"Sending files to client"<<std::endl;
/* Read files */
// Put 5kB in one bunch (this is not accurate)
u32 bytes_per_bunch = 5000;
std::vector< std::vector<SendableMedia> > file_bunches;
file_bunches.push_back(std::vector<SendableMedia>());
u32 file_size_bunch_total = 0;
for(std::vector<std::string>::const_iterator i = tosend.begin();
i != tosend.end(); ++i) {
const std::string &name = *i;
if (m_media.find(name) == m_media.end()) {
errorstream<<"Server::sendRequestedMedia(): Client asked for "
<<"unknown file \""<<(name)<<"\""<<std::endl;
continue;
}
//TODO get path + name
std::string tpath = m_media[name].path;
// Read data
std::ifstream fis(tpath.c_str(), std::ios_base::binary);
if(fis.good() == false){
errorstream<<"Server::sendRequestedMedia(): Could not open \""
<<tpath<<"\" for reading"<<std::endl;
continue;
}
std::ostringstream tmp_os(std::ios_base::binary);
bool bad = false;
for(;;) {
char buf[1024];
fis.read(buf, 1024);
std::streamsize len = fis.gcount();
tmp_os.write(buf, len);
file_size_bunch_total += len;
if(fis.eof())
break;
if(!fis.good()) {
bad = true;
break;
}
}
if(bad) {
errorstream<<"Server::sendRequestedMedia(): Failed to read \""
<<name<<"\""<<std::endl;
continue;
}
/*infostream<<"Server::sendRequestedMedia(): Loaded \""
<<tname<<"\""<<std::endl;*/
// Put in list
file_bunches[file_bunches.size()-1].push_back(
SendableMedia(name, tpath, tmp_os.str()));
// Start next bunch if got enough data
if(file_size_bunch_total >= bytes_per_bunch) {
file_bunches.push_back(std::vector<SendableMedia>());
file_size_bunch_total = 0;
}
}
/* Create and send packets */
u16 num_bunches = file_bunches.size();
for(u16 i = 0; i < num_bunches; i++) {
/*
u16 command
u16 total number of texture bunches
u16 index of this bunch
u32 number of files in this bunch
for each file {
u16 length of name
string name
u32 length of data
data
}
*/
NetworkPacket pkt(TOCLIENT_MEDIA, 4 + 0, peer_id);
pkt << num_bunches << i << (u32) file_bunches[i].size();
for(std::vector<SendableMedia>::iterator
j = file_bunches[i].begin();
j != file_bunches[i].end(); ++j) {
pkt << j->name;
pkt.putLongString(j->data);
}
verbosestream << "Server::sendRequestedMedia(): bunch "
<< i << "/" << num_bunches
<< " files=" << file_bunches[i].size()
<< " size=" << pkt.getSize() << std::endl;
Send(&pkt);
}
}
void Server::sendDetachedInventory(const std::string &name, u16 peer_id)
{
if(m_detached_inventories.count(name) == 0) {
errorstream<<FUNCTION_NAME<<": \""<<name<<"\" not found"<<std::endl;
return;
}
Inventory *inv = m_detached_inventories[name];
std::ostringstream os(std::ios_base::binary);
os << serializeString(name);
inv->serialize(os);
// Make data buffer
std::string s = os.str();
NetworkPacket pkt(TOCLIENT_DETACHED_INVENTORY, 0, peer_id);
pkt.putRawString(s.c_str(), s.size());
const std::string &check = m_detached_inventories_player[name];
if (peer_id == PEER_ID_INEXISTENT) {
if (check == "")
return m_clients.sendToAll(0, &pkt, true);
RemotePlayer *p = m_env->getPlayer(check.c_str());
if (p)
m_clients.send(p->peer_id, 0, &pkt, true);
} else {
if (check == "" || getPlayerName(peer_id) == check)
Send(&pkt);
}
}
void Server::sendDetachedInventories(u16 peer_id)
{
DSTACK(FUNCTION_NAME);
for(std::map<std::string, Inventory*>::iterator
i = m_detached_inventories.begin();
i != m_detached_inventories.end(); ++i) {
const std::string &name = i->first;
//Inventory *inv = i->second;
sendDetachedInventory(name, peer_id);
}
}
/*
Something random
*/
void Server::DiePlayer(u16 peer_id)
{
DSTACK(FUNCTION_NAME);
PlayerSAO *playersao = getPlayerSAO(peer_id);
// In some rare cases this can be NULL -- if the player is disconnected
// when a Lua function modifies l_punch, for example
if (!playersao)
return;
infostream << "Server::DiePlayer(): Player "
<< playersao->getPlayer()->getName()
<< " dies" << std::endl;
playersao->setHP(0);
// Trigger scripted stuff
m_script->on_dieplayer(playersao);
SendPlayerHP(peer_id);
SendDeathscreen(peer_id, false, v3f(0,0,0));
}
void Server::RespawnPlayer(u16 peer_id)
{
DSTACK(FUNCTION_NAME);
PlayerSAO *playersao = getPlayerSAO(peer_id);
assert(playersao);
infostream << "Server::RespawnPlayer(): Player "
<< playersao->getPlayer()->getName()
<< " respawns" << std::endl;
playersao->setHP(PLAYER_MAX_HP);
playersao->setBreath(PLAYER_MAX_BREATH);
bool repositioned = m_script->on_respawnplayer(playersao);
if (!repositioned) {
v3f pos = findSpawnPos();
// setPos will send the new position to client
playersao->setPos(pos);
}
SendPlayerHP(peer_id);
}
void Server::DenySudoAccess(u16 peer_id)
{
DSTACK(FUNCTION_NAME);
NetworkPacket pkt(TOCLIENT_DENY_SUDO_MODE, 0, peer_id);
Send(&pkt);
}
void Server::DenyAccessVerCompliant(u16 peer_id, u16 proto_ver, AccessDeniedCode reason,
const std::string &str_reason, bool reconnect)
{
if (proto_ver >= 25) {
SendAccessDenied(peer_id, reason, str_reason, reconnect);
} else {
std::wstring wreason = utf8_to_wide(
reason == SERVER_ACCESSDENIED_CUSTOM_STRING ? str_reason :
accessDeniedStrings[(u8)reason]);
SendAccessDenied_Legacy(peer_id, wreason);
}
m_clients.event(peer_id, CSE_SetDenied);
m_con.DisconnectPeer(peer_id);
}
void Server::DenyAccess(u16 peer_id, AccessDeniedCode reason, const std::string &custom_reason)
{
DSTACK(FUNCTION_NAME);
SendAccessDenied(peer_id, reason, custom_reason);
m_clients.event(peer_id, CSE_SetDenied);
m_con.DisconnectPeer(peer_id);
}
// 13/03/15: remove this function when protocol version 25 will become
// the minimum version for MT users, maybe in 1 year
void Server::DenyAccess_Legacy(u16 peer_id, const std::wstring &reason)
{
DSTACK(FUNCTION_NAME);
SendAccessDenied_Legacy(peer_id, reason);
m_clients.event(peer_id, CSE_SetDenied);
m_con.DisconnectPeer(peer_id);
}
void Server::acceptAuth(u16 peer_id, bool forSudoMode)
{
DSTACK(FUNCTION_NAME);
if (!forSudoMode) {
RemoteClient* client = getClient(peer_id, CS_Invalid);
NetworkPacket resp_pkt(TOCLIENT_AUTH_ACCEPT, 1 + 6 + 8 + 4, peer_id);
// Right now, the auth mechs don't change between login and sudo mode.
u32 sudo_auth_mechs = client->allowed_auth_mechs;
client->allowed_sudo_mechs = sudo_auth_mechs;
resp_pkt << v3f(0,0,0) << (u64) m_env->getServerMap().getSeed()
<< g_settings->getFloat("dedicated_server_step")
<< sudo_auth_mechs;
Send(&resp_pkt);
m_clients.event(peer_id, CSE_AuthAccept);
} else {
NetworkPacket resp_pkt(TOCLIENT_ACCEPT_SUDO_MODE, 1 + 6 + 8 + 4, peer_id);
// We only support SRP right now
u32 sudo_auth_mechs = AUTH_MECHANISM_FIRST_SRP;
resp_pkt << sudo_auth_mechs;
Send(&resp_pkt);
m_clients.event(peer_id, CSE_SudoSuccess);
}
}
void Server::DeleteClient(u16 peer_id, ClientDeletionReason reason)
{
DSTACK(FUNCTION_NAME);
std::wstring message;
{
/*
Clear references to playing sounds
*/
for (UNORDERED_MAP<s32, ServerPlayingSound>::iterator
i = m_playing_sounds.begin(); i != m_playing_sounds.end();) {
ServerPlayingSound &psound = i->second;
psound.clients.erase(peer_id);
if (psound.clients.empty())
m_playing_sounds.erase(i++);
else
++i;
}
RemotePlayer *player = m_env->getPlayer(peer_id);
/* Run scripts and remove from environment */
if (player != NULL) {
PlayerSAO *playersao = player->getPlayerSAO();
assert(playersao);
m_script->on_leaveplayer(playersao, reason == CDR_TIMEOUT);
playersao->disconnected();
}
/*
Print out action
*/
{
if(player != NULL && reason != CDR_DENY) {
std::ostringstream os(std::ios_base::binary);
std::vector<u16> clients = m_clients.getClientIDs();
for(std::vector<u16>::iterator i = clients.begin();
i != clients.end(); ++i) {
// Get player
RemotePlayer *player = m_env->getPlayer(*i);
if (!player)
continue;
// Get name of player
os << player->getName() << " ";
}
std::string name = player->getName();
actionstream << name << " "
<< (reason == CDR_TIMEOUT ? "times out." : "leaves game.")
<< " List of players: " << os.str() << std::endl;
if (m_admin_chat)
m_admin_chat->outgoing_queue.push_back(
new ChatEventNick(CET_NICK_REMOVE, name));
}
}
{
MutexAutoLock env_lock(m_env_mutex);
m_clients.DeleteClient(peer_id);
}
}
// Send leave chat message to all remaining clients
if(message.length() != 0)
SendChatMessage(PEER_ID_INEXISTENT,message);
}
void Server::UpdateCrafting(RemotePlayer *player)
{
DSTACK(FUNCTION_NAME);
// Get a preview for crafting
ItemStack preview;
InventoryLocation loc;
loc.setPlayer(player->getName());
std::vector<ItemStack> output_replacements;
getCraftingResult(&player->inventory, preview, output_replacements, false, this);
m_env->getScriptIface()->item_CraftPredict(preview, player->getPlayerSAO(),
(&player->inventory)->getList("craft"), loc);
// Put the new preview in
InventoryList *plist = player->inventory.getList("craftpreview");
sanity_check(plist);
sanity_check(plist->getSize() >= 1);
plist->changeItem(0, preview);
}
void Server::handleChatInterfaceEvent(ChatEvent *evt)
{
if (evt->type == CET_NICK_ADD) {
// The terminal informed us of its nick choice
m_admin_nick = ((ChatEventNick *)evt)->nick;
if (!m_script->getAuth(m_admin_nick, NULL, NULL)) {
errorstream << "You haven't set up an account." << std::endl
<< "Please log in using the client as '"
<< m_admin_nick << "' with a secure password." << std::endl
<< "Until then, you can't execute admin tasks via the console," << std::endl
<< "and everybody can claim the user account instead of you," << std::endl
<< "giving them full control over this server." << std::endl;
}
} else {
assert(evt->type == CET_CHAT);
handleAdminChat((ChatEventChat *)evt);
}
}
std::wstring Server::handleChat(const std::string &name, const std::wstring &wname,
const std::wstring &wmessage, bool check_shout_priv, RemotePlayer *player)
{
// If something goes wrong, this player is to blame
RollbackScopeActor rollback_scope(m_rollback,
std::string("player:") + name);
if (player) {
switch (player->canSendChatMessage()) {
case RPLAYER_CHATRESULT_FLOODING: {
std::wstringstream ws;
ws << L"You cannot send more messages. You are limited to "
<< g_settings->getFloat("chat_message_limit_per_10sec")
<< L" messages per 10 seconds.";
return ws.str();
}
case RPLAYER_CHATRESULT_KICK:
DenyAccess_Legacy(player->peer_id,
L"You have been kicked due to message flooding.");
return L"";
case RPLAYER_CHATRESULT_OK:
break;
default:
FATAL_ERROR("Unhandled chat filtering result found.");
}
}
if (m_max_chatmessage_length > 0
&& wmessage.length() > m_max_chatmessage_length) {
return L"Your message exceed the maximum chat message limit set on the server. "
L"It was refused. Send a shorter message";
}
// Run script hook, exit if script ate the chat message
if (m_script->on_chat_message(name, wide_to_utf8(wmessage)))
return L"";
// Line to send
std::wstring line;
// Whether to send line to the player that sent the message, or to all players
bool broadcast_line = true;
if (check_shout_priv && !checkPriv(name, "shout")) {
line += L"-!- You don't have permission to shout.";
broadcast_line = false;
} else {
line += L"<";
line += wname;
line += L"> ";
line += wmessage;
}
/*
Tell calling method to send the message to sender
*/
if (!broadcast_line) {
return line;
} else {
/*
Send the message to others
*/
actionstream << "CHAT: " << wide_to_narrow(line) << std::endl;
std::vector<u16> clients = m_clients.getClientIDs();
/*
Send the message back to the inital sender
if they are using protocol version >= 29
*/
u16 peer_id_to_avoid_sending = (player ? player->peer_id : PEER_ID_INEXISTENT);
if (player && player->protocol_version >= 29)
peer_id_to_avoid_sending = PEER_ID_INEXISTENT;
for (u16 i = 0; i < clients.size(); i++) {
u16 cid = clients[i];
if (cid != peer_id_to_avoid_sending)
SendChatMessage(cid, line);
}
}
return L"";
}
void Server::handleAdminChat(const ChatEventChat *evt)
{
std::string name = evt->nick;
std::wstring wname = utf8_to_wide(name);
std::wstring wmessage = evt->evt_msg;
std::wstring answer = handleChat(name, wname, wmessage);
// If asked to send answer to sender
if (!answer.empty()) {
m_admin_chat->outgoing_queue.push_back(new ChatEventChat("", answer));
}
}
RemoteClient* Server::getClient(u16 peer_id, ClientState state_min)
{
RemoteClient *client = getClientNoEx(peer_id,state_min);
if(!client)
throw ClientNotFoundException("Client not found");
return client;
}
RemoteClient* Server::getClientNoEx(u16 peer_id, ClientState state_min)
{
return m_clients.getClientNoEx(peer_id, state_min);
}
std::string Server::getPlayerName(u16 peer_id)
{
RemotePlayer *player = m_env->getPlayer(peer_id);
if (player == NULL)
return "[id="+itos(peer_id)+"]";
return player->getName();
}
PlayerSAO* Server::getPlayerSAO(u16 peer_id)
{
RemotePlayer *player = m_env->getPlayer(peer_id);
if (player == NULL)
return NULL;
return player->getPlayerSAO();
}
std::wstring Server::getStatusString()
{
std::wostringstream os(std::ios_base::binary);
os<<L"# Server: ";
// Version
os<<L"version="<<narrow_to_wide(g_version_string);
// Uptime
os<<L", uptime="<<m_uptime.get();
// Max lag estimate
os<<L", max_lag="<<m_env->getMaxLagEstimate();
// Information about clients
bool first = true;
os<<L", clients={";
std::vector<u16> clients = m_clients.getClientIDs();
for (std::vector<u16>::iterator i = clients.begin(); i != clients.end(); ++i) {
// Get player
RemotePlayer *player = m_env->getPlayer(*i);
// Get name of player
std::wstring name = L"unknown";
if (player != NULL)
name = narrow_to_wide(player->getName());
// Add name to information string
if(!first)
os << L", ";
else
first = false;
os << name;
}
os << L"}";
if(((ServerMap*)(&m_env->getMap()))->isSavingEnabled() == false)
os<<std::endl<<L"# Server: "<<" WARNING: Map saving is disabled.";
if(g_settings->get("motd") != "")
os<<std::endl<<L"# Server: "<<narrow_to_wide(g_settings->get("motd"));
return os.str();
}
std::set<std::string> Server::getPlayerEffectivePrivs(const std::string &name)
{
std::set<std::string> privs;
m_script->getAuth(name, NULL, &privs);
return privs;
}
bool Server::checkPriv(const std::string &name, const std::string &priv)
{
std::set<std::string> privs = getPlayerEffectivePrivs(name);
return (privs.count(priv) != 0);
}
void Server::reportPrivsModified(const std::string &name)
{
if(name == "") {
std::vector<u16> clients = m_clients.getClientIDs();
for(std::vector<u16>::iterator i = clients.begin();
i != clients.end(); ++i) {
RemotePlayer *player = m_env->getPlayer(*i);
reportPrivsModified(player->getName());
}
} else {
RemotePlayer *player = m_env->getPlayer(name.c_str());
if (!player)
return;
SendPlayerPrivileges(player->peer_id);
PlayerSAO *sao = player->getPlayerSAO();
if(!sao)
return;
sao->updatePrivileges(
getPlayerEffectivePrivs(name),
isSingleplayer());
}
}
void Server::reportInventoryFormspecModified(const std::string &name)
{
RemotePlayer *player = m_env->getPlayer(name.c_str());
if (!player)
return;
SendPlayerInventoryFormspec(player->peer_id);
}
void Server::setIpBanned(const std::string &ip, const std::string &name)
{
m_banmanager->add(ip, name);
}
void Server::unsetIpBanned(const std::string &ip_or_name)
{
m_banmanager->remove(ip_or_name);
}
std::string Server::getBanDescription(const std::string &ip_or_name)
{
return m_banmanager->getBanDescription(ip_or_name);
}
void Server::notifyPlayer(const char *name, const std::wstring &msg)
{
// m_env will be NULL if the server is initializing
if (!m_env)
return;
if (m_admin_nick == name && !m_admin_nick.empty()) {
m_admin_chat->outgoing_queue.push_back(new ChatEventChat("", msg));
}
RemotePlayer *player = m_env->getPlayer(name);
if (!player) {
return;
}
if (player->peer_id == PEER_ID_INEXISTENT)
return;
SendChatMessage(player->peer_id, msg);
}
bool Server::showFormspec(const char *playername, const std::string &formspec,
const std::string &formname)
{
// m_env will be NULL if the server is initializing
if (!m_env)
return false;
RemotePlayer *player = m_env->getPlayer(playername);
if (!player)
return false;
SendShowFormspecMessage(player->peer_id, formspec, formname);
return true;
}
u32 Server::hudAdd(RemotePlayer *player, HudElement *form)
{
if (!player)
return -1;
u32 id = player->addHud(form);
SendHUDAdd(player->peer_id, id, form);
return id;
}
bool Server::hudRemove(RemotePlayer *player, u32 id) {
if (!player)
return false;
HudElement* todel = player->removeHud(id);
if (!todel)
return false;
delete todel;
SendHUDRemove(player->peer_id, id);
return true;
}
bool Server::hudChange(RemotePlayer *player, u32 id, HudElementStat stat, void *data)
{
if (!player)
return false;
SendHUDChange(player->peer_id, id, stat, data);
return true;
}
bool Server::hudSetFlags(RemotePlayer *player, u32 flags, u32 mask)
{
if (!player)
return false;
SendHUDSetFlags(player->peer_id, flags, mask);
player->hud_flags &= ~mask;
player->hud_flags |= flags;
PlayerSAO* playersao = player->getPlayerSAO();
if (playersao == NULL)
return false;
m_script->player_event(playersao, "hud_changed");
return true;
}
bool Server::hudSetHotbarItemcount(RemotePlayer *player, s32 hotbar_itemcount)
{
if (!player)
return false;
if (hotbar_itemcount <= 0 || hotbar_itemcount > HUD_HOTBAR_ITEMCOUNT_MAX)
return false;
player->setHotbarItemcount(hotbar_itemcount);
std::ostringstream os(std::ios::binary);
writeS32(os, hotbar_itemcount);
SendHUDSetParam(player->peer_id, HUD_PARAM_HOTBAR_ITEMCOUNT, os.str());
return true;
}
void Server::hudSetHotbarImage(RemotePlayer *player, std::string name)
{
if (!player)
return;
player->setHotbarImage(name);
SendHUDSetParam(player->peer_id, HUD_PARAM_HOTBAR_IMAGE, name);
}
std::string Server::hudGetHotbarImage(RemotePlayer *player)
{
if (!player)
return "";
return player->getHotbarImage();
}
void Server::hudSetHotbarSelectedImage(RemotePlayer *player, std::string name)
{
if (!player)
return;
player->setHotbarSelectedImage(name);
SendHUDSetParam(player->peer_id, HUD_PARAM_HOTBAR_SELECTED_IMAGE, name);
}
bool Server::setLocalPlayerAnimations(RemotePlayer *player,
v2s32 animation_frames[4], f32 frame_speed)
{
if (!player)
return false;
player->setLocalAnimations(animation_frames, frame_speed);
SendLocalPlayerAnimations(player->peer_id, animation_frames, frame_speed);
return true;
}
bool Server::setPlayerEyeOffset(RemotePlayer *player, v3f first, v3f third)
{
if (!player)
return false;
player->eye_offset_first = first;
player->eye_offset_third = third;
SendEyeOffset(player->peer_id, first, third);
return true;
}
bool Server::setSky(RemotePlayer *player, const video::SColor &bgcolor,
const std::string &type, const std::vector<std::string> &params)
{
if (!player)
return false;
player->setSky(bgcolor, type, params);
SendSetSky(player->peer_id, bgcolor, type, params);
return true;
}
bool Server::overrideDayNightRatio(RemotePlayer *player, bool do_override,
float ratio)
{
if (!player)
return false;
player->overrideDayNightRatio(do_override, ratio);
SendOverrideDayNightRatio(player->peer_id, do_override, ratio);
return true;
}
void Server::notifyPlayers(const std::wstring &msg)
{
SendChatMessage(PEER_ID_INEXISTENT,msg);
}
void Server::spawnParticle(const std::string &playername, v3f pos,
v3f velocity, v3f acceleration,
float expirationtime, float size, bool
collisiondetection, bool collision_removal,
bool vertical, const std::string &texture,
const struct TileAnimationParams &animation, u8 glow)
{
// m_env will be NULL if the server is initializing
if (!m_env)
return;
u16 peer_id = PEER_ID_INEXISTENT, proto_ver = 0;
if (playername != "") {
RemotePlayer *player = m_env->getPlayer(playername.c_str());
if (!player)
return;
peer_id = player->peer_id;
proto_ver = player->protocol_version;
}
SendSpawnParticle(peer_id, proto_ver, pos, velocity, acceleration,
expirationtime, size, collisiondetection,
collision_removal, vertical, texture, animation, glow);
}
u32 Server::addParticleSpawner(u16 amount, float spawntime,
v3f minpos, v3f maxpos, v3f minvel, v3f maxvel, v3f minacc, v3f maxacc,
float minexptime, float maxexptime, float minsize, float maxsize,
bool collisiondetection, bool collision_removal,
ServerActiveObject *attached, bool vertical, const std::string &texture,
const std::string &playername, const struct TileAnimationParams &animation,
u8 glow)
{
// m_env will be NULL if the server is initializing
if (!m_env)
return -1;
u16 peer_id = PEER_ID_INEXISTENT, proto_ver = 0;
if (playername != "") {
RemotePlayer *player = m_env->getPlayer(playername.c_str());
if (!player)
return -1;
peer_id = player->peer_id;
proto_ver = player->protocol_version;
}
u16 attached_id = attached ? attached->getId() : 0;
u32 id;
if (attached_id == 0)
id = m_env->addParticleSpawner(spawntime);
else
id = m_env->addParticleSpawner(spawntime, attached_id);
SendAddParticleSpawner(peer_id, proto_ver, amount, spawntime,
minpos, maxpos, minvel, maxvel, minacc, maxacc,
minexptime, maxexptime, minsize, maxsize,
collisiondetection, collision_removal, attached_id, vertical,
texture, id, animation, glow);
return id;
}
void Server::deleteParticleSpawner(const std::string &playername, u32 id)
{
// m_env will be NULL if the server is initializing
if (!m_env)
throw ServerError("Can't delete particle spawners during initialisation!");
u16 peer_id = PEER_ID_INEXISTENT;
if (playername != "") {
RemotePlayer *player = m_env->getPlayer(playername.c_str());
if (!player)
return;
peer_id = player->peer_id;
}
m_env->deleteParticleSpawner(id);
SendDeleteParticleSpawner(peer_id, id);
}
Inventory* Server::createDetachedInventory(const std::string &name, const std::string &player)
{
if(m_detached_inventories.count(name) > 0){
infostream<<"Server clearing detached inventory \""<<name<<"\""<<std::endl;
delete m_detached_inventories[name];
} else {
infostream<<"Server creating detached inventory \""<<name<<"\""<<std::endl;
}
Inventory *inv = new Inventory(m_itemdef);
sanity_check(inv);
m_detached_inventories[name] = inv;
m_detached_inventories_player[name] = player;
//TODO find a better way to do this
sendDetachedInventory(name,PEER_ID_INEXISTENT);
return inv;
}
// actions: time-reversed list
// Return value: success/failure
bool Server::rollbackRevertActions(const std::list<RollbackAction> &actions,
std::list<std::string> *log)
{
infostream<<"Server::rollbackRevertActions(len="<<actions.size()<<")"<<std::endl;
ServerMap *map = (ServerMap*)(&m_env->getMap());
// Fail if no actions to handle
if(actions.empty()){
log->push_back("Nothing to do.");
return false;
}
int num_tried = 0;
int num_failed = 0;
for(std::list<RollbackAction>::const_iterator
i = actions.begin();
i != actions.end(); ++i)
{
const RollbackAction &action = *i;
num_tried++;
bool success = action.applyRevert(map, this, this);
if(!success){
num_failed++;
std::ostringstream os;
os<<"Revert of step ("<<num_tried<<") "<<action.toString()<<" failed";
infostream<<"Map::rollbackRevertActions(): "<<os.str()<<std::endl;
if(log)
log->push_back(os.str());
}else{
std::ostringstream os;
os<<"Successfully reverted step ("<<num_tried<<") "<<action.toString();
infostream<<"Map::rollbackRevertActions(): "<<os.str()<<std::endl;
if(log)
log->push_back(os.str());
}
}
infostream<<"Map::rollbackRevertActions(): "<<num_failed<<"/"<<num_tried
<<" failed"<<std::endl;
// Call it done if less than half failed
return num_failed <= num_tried/2;
}
// IGameDef interface
// Under envlock
IItemDefManager *Server::getItemDefManager()
{
return m_itemdef;
}
INodeDefManager *Server::getNodeDefManager()
{
return m_nodedef;
}
ICraftDefManager *Server::getCraftDefManager()
{
return m_craftdef;
}
u16 Server::allocateUnknownNodeId(const std::string &name)
{
return m_nodedef->allocateDummy(name);
}
MtEventManager *Server::getEventManager()
{
return m_event;
}
IWritableItemDefManager *Server::getWritableItemDefManager()
{
return m_itemdef;
}
IWritableNodeDefManager *Server::getWritableNodeDefManager()
{
return m_nodedef;
}
IWritableCraftDefManager *Server::getWritableCraftDefManager()
{
return m_craftdef;
}
const ModSpec *Server::getModSpec(const std::string &modname) const
{
std::vector<ModSpec>::const_iterator it;
for (it = m_mods.begin(); it != m_mods.end(); ++it) {
const ModSpec &mod = *it;
if (mod.name == modname)
return &mod;
}
return NULL;
}
void Server::getModNames(std::vector<std::string> &modlist)
{
std::vector<ModSpec>::iterator it;
for (it = m_mods.begin(); it != m_mods.end(); ++it)
modlist.push_back(it->name);
}
std::string Server::getBuiltinLuaPath()
{
return porting::path_share + DIR_DELIM + "builtin";
}
std::string Server::getModStoragePath() const
{
return m_path_world + DIR_DELIM + "mod_storage";
}
v3f Server::findSpawnPos()
{
ServerMap &map = m_env->getServerMap();
v3f nodeposf;
if (g_settings->getV3FNoEx("static_spawnpoint", nodeposf)) {
return nodeposf * BS;
}
bool is_good = false;
// Try to find a good place a few times
for(s32 i = 0; i < 4000 && !is_good; i++) {
s32 range = 1 + i;
// We're going to try to throw the player to this position
v2s16 nodepos2d = v2s16(
-range + (myrand() % (range * 2)),
-range + (myrand() % (range * 2)));
// Get spawn level at point
s16 spawn_level = m_emerge->getSpawnLevelAtPoint(nodepos2d);
// Continue if MAX_MAP_GENERATION_LIMIT was returned by
// the mapgen to signify an unsuitable spawn position
if (spawn_level == MAX_MAP_GENERATION_LIMIT)
continue;
v3s16 nodepos(nodepos2d.X, spawn_level, nodepos2d.Y);
s32 air_count = 0;
for (s32 i = 0; i < 10; i++) {
v3s16 blockpos = getNodeBlockPos(nodepos);
map.emergeBlock(blockpos, true);
content_t c = map.getNodeNoEx(nodepos).getContent();
if (c == CONTENT_AIR || c == CONTENT_IGNORE) {
air_count++;
if (air_count >= 2) {
nodeposf = intToFloat(nodepos, BS);
// Don't spawn the player outside map boundaries
if (objectpos_over_limit(nodeposf))
continue;
is_good = true;
break;
}
}
nodepos.Y++;
}
}
return nodeposf;
}
PlayerSAO* Server::emergePlayer(const char *name, u16 peer_id, u16 proto_version)
{
bool newplayer = false;
/*
Try to get an existing player
*/
RemotePlayer *player = m_env->getPlayer(name);
// If player is already connected, cancel
if (player != NULL && player->peer_id != 0) {
infostream<<"emergePlayer(): Player already connected"<<std::endl;
return NULL;
}
/*
If player with the wanted peer_id already exists, cancel.
*/
if (m_env->getPlayer(peer_id) != NULL) {
infostream<<"emergePlayer(): Player with wrong name but same"
" peer_id already exists"<<std::endl;
return NULL;
}
// Create a new player active object
PlayerSAO *playersao = new PlayerSAO(m_env, peer_id, isSingleplayer());
player = m_env->loadPlayer(name, playersao);
// Create player if it doesn't exist
if (!player) {
newplayer = true;
player = new RemotePlayer(name, this->idef());
// Set player position
infostream<<"Server: Finding spawn place for player \""
<<name<<"\""<<std::endl;
playersao->setBasePosition(findSpawnPos());
// Make sure the player is saved
player->setModified(true);
// Add player to environment
m_env->addPlayer(player);
} else {
// If the player exists, ensure that they respawn inside legal bounds
// This fixes an assert crash when the player can't be added
// to the environment
if (objectpos_over_limit(playersao->getBasePosition())) {
actionstream << "Respawn position for player \""
<< name << "\" outside limits, resetting" << std::endl;
playersao->setBasePosition(findSpawnPos());
}
}
playersao->initialize(player, getPlayerEffectivePrivs(player->getName()));
player->protocol_version = proto_version;
/* Clean up old HUD elements from previous sessions */
player->clearHud();
/* Add object to environment */
m_env->addActiveObject(playersao);
/* Run scripts */
if (newplayer) {
m_script->on_newplayer(playersao);
}
return playersao;
}
bool Server::registerModStorage(ModMetadata *storage)
{
if (m_mod_storages.find(storage->getModName()) != m_mod_storages.end()) {
errorstream << "Unable to register same mod storage twice. Storage name: "
<< storage->getModName() << std::endl;
return false;
}
m_mod_storages[storage->getModName()] = storage;
return true;
}
void Server::unregisterModStorage(const std::string &name)
{
UNORDERED_MAP<std::string, ModMetadata *>::const_iterator it = m_mod_storages.find(name);
if (it != m_mod_storages.end()) {
// Save unconditionaly on unregistration
it->second->save(getModStoragePath());
m_mod_storages.erase(name);
}
}
void dedicated_server_loop(Server &server, bool &kill)
{
DSTACK(FUNCTION_NAME);
verbosestream<<"dedicated_server_loop()"<<std::endl;
IntervalLimiter m_profiler_interval;
static const float steplen = g_settings->getFloat("dedicated_server_step");
static const float profiler_print_interval =
g_settings->getFloat("profiler_print_interval");
for(;;) {
// This is kind of a hack but can be done like this
// because server.step() is very light
{
ScopeProfiler sp(g_profiler, "dedicated server sleep");
sleep_ms((int)(steplen*1000.0));
}
server.step(steplen);
if (server.getShutdownRequested() || kill)
break;
/*
Profiler
*/
if (profiler_print_interval != 0) {
if(m_profiler_interval.step(steplen, profiler_print_interval))
{
infostream<<"Profiler:"<<std::endl;
g_profiler->print(infostream);
g_profiler->clear();
}
}
}
infostream << "Dedicated server quitting" << std::endl;
#if USE_CURL
if (g_settings->getBool("server_announce"))
ServerList::sendAnnounce(ServerList::AA_DELETE,
server.m_bind_addr.getPort());
#endif
}
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