minetest/src/server.cpp
Muhammad Rifqi Priyo Susanto 5ffddc94c0 Add space between client names in status text (client)
Before:
Server: version=0.4.10, uptime=190.5, max_lag=0.001, clients={user1,user2,user3,user4,user5,foobar,userplayedminetestthismorning}

After:
Server: version=0.4.10, uptime=190.5, max_lag=0.001, clients={user1, user2, user3, user4, user5, foobar, userplayedminetestthismorning}
2014-12-07 21:32:08 +10:00

5122 lines
129 KiB
C++

/*
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 "clientserver.h"
#include "ban.h"
#include "environment.h"
#include "map.h"
#include "jthread/jmutexautolock.h"
#include "main.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 "scripting_game.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 "sha1.h"
#include "base64.h"
#include "tool.h"
#include "sound.h" // dummySoundManager
#include "event_manager.h"
#include "hex.h"
#include "serverlist.h"
#include "util/string.h"
#include "util/pointedthing.h"
#include "util/mathconstants.h"
#include "rollback.h"
#include "util/serialize.h"
#include "util/thread.h"
#include "defaultsettings.h"
class ClientNotFoundException : public BaseException
{
public:
ClientNotFoundException(const char *s):
BaseException(s)
{}
};
class ServerThread : public JThread
{
Server *m_server;
public:
ServerThread(Server *server):
JThread(),
m_server(server)
{
}
void * Thread();
};
void * ServerThread::Thread()
{
log_register_thread("ServerThread");
DSTACK(__FUNCTION_NAME);
BEGIN_DEBUG_EXCEPTION_HANDLER
m_server->AsyncRunStep(true);
ThreadStarted();
porting::setThreadName("ServerThread");
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(e.what());
}
}
END_DEBUG_EXCEPTION_HANDLER(errorstream)
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
):
m_path_world(path_world),
m_gamespec(gamespec),
m_simple_singleplayer_mode(simple_singleplayer_mode),
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_ignore_map_edit_events(false),
m_ignore_map_edit_events_peer_id(0)
{
m_liquid_transform_timer = 0.0;
m_liquid_transform_every = 1.0;
m_print_info_timer = 0.0;
m_masterserver_timer = 0.0;
m_objectdata_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;
// Initialize default settings and override defaults with those provided
// by the game
set_default_settings(g_settings);
Settings gamedefaults;
getGameMinetestConfig(gamespec.path, gamedefaults);
override_default_settings(g_settings, &gamedefaults);
// Create server thread
m_thread = new ServerThread(this);
// Create emerge manager
m_emerge = new EmergeManager(this);
// Create world if it doesn't exist
if(!initializeWorld(m_path_world, m_gamespec.id))
throw ServerError("Failed to initialize world");
// Create ban manager
std::string ban_path = m_path_world + DIR_DELIM "ipban.txt";
m_banmanager = new BanManager(ban_path);
// Create rollback manager
m_rollback = new RollbackManager(m_path_world, this);
ModConfiguration modconf(m_path_world);
m_mods = modconf.getMods();
std::vector<ModSpec> unsatisfied_mods = modconf.getUnsatisfiedMods();
// complain about mods with unsatisfied dependencies
if(!modconf.isConsistent())
{
for(std::vector<ModSpec>::iterator it = unsatisfied_mods.begin();
it != unsatisfied_mods.end(); ++it)
{
ModSpec mod = *it;
errorstream << "mod \"" << mod.name << "\" has unsatisfied dependencies: ";
for(std::set<std::string>::iterator dep_it = mod.unsatisfied_depends.begin();
dep_it != mod.unsatisfied_depends.end(); ++dep_it)
errorstream << " \"" << *dep_it << "\"";
errorstream << std::endl;
}
}
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
JMutexAutoLock envlock(m_env_mutex);
// Initialize scripting
infostream<<"Server: Initializing Lua"<<std::endl;
m_script = new GameScripting(this);
std::string scriptpath = getBuiltinLuaPath() + DIR_DELIM "init.lua";
if (!m_script->loadScript(scriptpath)) {
throw ModError("Failed to load and run " + scriptpath);
}
// Print 'em
infostream<<"Server: Loading mods: ";
for(std::vector<ModSpec>::iterator i = m_mods.begin();
i != m_mods.end(); i++){
const ModSpec &mod = *i;
infostream<<mod.name<<" ";
}
infostream<<std::endl;
// Load and run "mod" scripts
for(std::vector<ModSpec>::iterator i = m_mods.begin();
i != m_mods.end(); i++){
const ModSpec &mod = *i;
std::string scriptpath = mod.path + DIR_DELIM + "init.lua";
infostream<<" ["<<padStringRight(mod.name, 12)<<"] [\""
<<scriptpath<<"\"]"<<std::endl;
bool success = m_script->loadMod(scriptpath, mod.name);
if(!success){
errorstream<<"Server: Failed to load and run "
<<scriptpath<<std::endl;
throw ModError("Failed to load and run "+scriptpath);
}
}
// Read Textures and calculate sha1 sums
fillMediaCache();
// Apply item aliases in the node definition manager
m_nodedef->updateAliases(m_itemdef);
// Perform pending node name resolutions
m_nodedef->getResolver()->resolveNodes();
// Load the mapgen params from global settings now after any
// initial overrides have been set by the mods
m_emerge->loadMapgenParams();
// Initialize Environment
ServerMap *servermap = new ServerMap(path_world, this, m_emerge);
m_env = new ServerEnvironment(servermap, m_script, this, m_path_world);
m_clients.setEnv(m_env);
// Run some callbacks after the MG params have been set up but before activation
m_script->environment_OnMapgenInit(&m_emerge->params);
// Initialize mapgens
m_emerge->initMapgens();
// 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();
}
// Add some test ActiveBlockModifiers to environment
add_legacy_abms(m_env, m_nodedef);
m_liquid_transform_every = g_settings->getFloat("liquid_update");
}
Server::~Server()
{
infostream<<"Server destructing"<<std::endl;
// Send shutdown message
SendChatMessage(PEER_ID_INEXISTENT, L"*** Server shutting down");
{
JMutexAutoLock envlock(m_env_mutex);
// Execute script shutdown hooks
m_script->on_shutdown();
infostream<<"Server: Saving players"<<std::endl;
m_env->saveLoadedPlayers();
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_env;
// N.B. the EmergeManager should be deleted after the Environment since Map
// depends on EmergeManager to write its current params to the map meta
delete m_emerge;
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);
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;
{
JMutexAutoLock 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 != ""){
throw ServerError(async_err);
}
}
void Server::AsyncRunStep(bool initial_step)
{
DSTACK(__FUNCTION_NAME);
g_profiler->add("Server::AsyncRunStep (num)", 1);
float dtime;
{
JMutexAutoLock 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;
{
JMutexAutoLock 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
*/
{
JMutexAutoLock envlock(m_env_mutex);
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);
}
}
{
JMutexAutoLock 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);
}
const float map_timer_and_unload_dtime = 2.92;
if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime))
{
JMutexAutoLock 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"));
}
/*
Do background stuff
*/
/*
Handle players
*/
{
JMutexAutoLock lock(m_env_mutex);
std::list<u16> clientids = m_clients.getClientIDs();
ScopeProfiler sp(g_profiler, "Server: handle players");
for(std::list<u16>::iterator
i = clientids.begin();
i != clientids.end(); ++i)
{
PlayerSAO *playersao = getPlayerSAO(*i);
if(playersao == NULL)
continue;
/*
Handle player HPs (die if hp=0)
*/
if(playersao->m_hp_not_sent && g_settings->getBool("enable_damage"))
{
if(playersao->getHP() == 0)
DiePlayer(*i);
else
SendPlayerHP(*i);
}
/*
Send player breath if changed
*/
if(playersao->m_breath_not_sent) {
SendPlayerBreath(*i);
}
/*
Send player inventories if necessary
*/
if(playersao->m_moved){
SendMovePlayer(*i);
playersao->m_moved = false;
}
if(playersao->m_inventory_not_sent){
UpdateCrafting(*i);
SendInventory(*i);
}
}
}
/* Transform liquids */
m_liquid_transform_timer += dtime;
if(m_liquid_transform_timer >= m_liquid_transform_every)
{
m_liquid_transform_timer -= m_liquid_transform_every;
JMutexAutoLock 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.size() > 0)
{
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 ? "update" : "start",
m_clients.getPlayerNames(),
m_uptime.get(),
m_env->getGameTime(),
m_lag,
m_gamespec.id,
m_emerge->params.mg_name,
m_mods);
counter = 0.01;
}
counter += dtime;
}
#endif
/*
Check added and deleted active objects
*/
{
//infostream<<"Server: Checking added and deleted active objects"<<std::endl;
JMutexAutoLock envlock(m_env_mutex);
m_clients.Lock();
std::map<u16, RemoteClient*> clients = m_clients.getClientList();
ScopeProfiler sp(g_profiler, "Server: checking added and deleted objs");
// Radius inside which objects are active
s16 radius = g_settings->getS16("active_object_send_range_blocks");
s16 player_radius = g_settings->getS16("player_transfer_distance");
if (player_radius == 0 && g_settings->exists("unlimited_player_transfer_distance") &&
!g_settings->getBool("unlimited_player_transfer_distance"))
player_radius = radius;
radius *= MAP_BLOCKSIZE;
player_radius *= MAP_BLOCKSIZE;
for(std::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;
Player *player = m_env->getPlayer(client->peer_id);
if(player==NULL)
{
// This can happen if the client timeouts somehow
/*infostream<<"WARNING: "<<__FUNCTION_NAME<<": Client "
<<client->peer_id
<<" has no associated player"<<std::endl;*/
continue;
}
v3s16 pos = floatToInt(player->getPosition(), BS);
std::set<u16> removed_objects;
std::set<u16> added_objects;
m_env->getRemovedActiveObjects(pos, radius, player_radius,
client->m_known_objects, removed_objects);
m_env->getAddedActiveObjects(pos, radius, player_radius,
client->m_known_objects, added_objects);
// Ignore if nothing happened
if(removed_objects.size() == 0 && added_objects.size() == 0)
{
//infostream<<"active objects: none changed"<<std::endl;
continue;
}
std::string data_buffer;
char buf[4];
// Handle removed objects
writeU16((u8*)buf, removed_objects.size());
data_buffer.append(buf, 2);
for(std::set<u16>::iterator
i = removed_objects.begin();
i != removed_objects.end(); ++i)
{
// Get object
u16 id = *i;
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--;
}
// Handle added objects
writeU16((u8*)buf, added_objects.size());
data_buffer.append(buf, 2);
for(std::set<u16>::iterator
i = added_objects.begin();
i != added_objects.end(); ++i)
{
// Get object
u16 id = *i;
ServerActiveObject* obj = m_env->getActiveObject(id);
// Get object type
u8 type = ACTIVEOBJECT_TYPE_INVALID;
if(obj == NULL)
infostream<<"WARNING: "<<__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++;
}
// Send packet
SharedBuffer<u8> reply(2 + data_buffer.size());
writeU16(&reply[0], TOCLIENT_ACTIVE_OBJECT_REMOVE_ADD);
memcpy((char*)&reply[2], data_buffer.c_str(),
data_buffer.size());
// Send as reliable
m_clients.send(client->peer_id, 0, reply, true);
verbosestream<<"Server: Sent object remove/add: "
<<removed_objects.size()<<" removed, "
<<added_objects.size()<<" added, "
<<"packet size is "<<reply.getSize()<<std::endl;
}
m_clients.Unlock();
#if 0
/*
Collect a list of all the objects known by the clients
and report it back to the environment.
*/
core::map<u16, bool> all_known_objects;
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
// Go through all known objects of client
for(core::map<u16, bool>::Iterator
i = client->m_known_objects.getIterator();
i.atEnd()==false; i++)
{
u16 id = i.getNode()->getKey();
all_known_objects[id] = true;
}
}
m_env->setKnownActiveObjects(whatever);
#endif
}
/*
Send object messages
*/
{
JMutexAutoLock envlock(m_env_mutex);
ScopeProfiler sp(g_profiler, "Server: sending object messages");
// Key = object id
// Value = data sent by object
std::map<u16, std::list<ActiveObjectMessage>* > buffered_messages;
// Get active object messages from environment
for(;;)
{
ActiveObjectMessage aom = m_env->getActiveObjectMessage();
if(aom.id == 0)
break;
std::list<ActiveObjectMessage>* message_list = NULL;
std::map<u16, std::list<ActiveObjectMessage>* >::iterator n;
n = buffered_messages.find(aom.id);
if(n == buffered_messages.end())
{
message_list = new std::list<ActiveObjectMessage>;
buffered_messages[aom.id] = message_list;
}
else
{
message_list = n->second;
}
message_list->push_back(aom);
}
m_clients.Lock();
std::map<u16, RemoteClient*> clients = m_clients.getClientList();
// Route data to every client
for(std::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(std::map<u16, std::list<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::list<ActiveObjectMessage>* list = j->second;
// Go through every message
for(std::list<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)
{
SharedBuffer<u8> reply(2 + reliable_data.size());
writeU16(&reply[0], TOCLIENT_ACTIVE_OBJECT_MESSAGES);
memcpy((char*)&reply[2], reliable_data.c_str(),
reliable_data.size());
// Send as reliable
m_clients.send(client->peer_id, 0, reply, true);
}
if(unreliable_data.size() > 0)
{
SharedBuffer<u8> reply(2 + unreliable_data.size());
writeU16(&reply[0], TOCLIENT_ACTIVE_OBJECT_MESSAGES);
memcpy((char*)&reply[2], unreliable_data.c_str(),
unreliable_data.size());
// Send as unreliable
m_clients.send(client->peer_id, 1, reply, false);
}
/*if(reliable_data.size() > 0 || unreliable_data.size() > 0)
{
infostream<<"Server: Size of object message data: "
<<"reliable: "<<reliable_data.size()
<<", unreliable: "<<unreliable_data.size()
<<std::endl;
}*/
}
m_clients.Unlock();
// Clear buffered_messages
for(std::map<u16, std::list<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
JMutexAutoLock 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.pop_front();
// Players far away from the change are stored here.
// Instead of sending the changes, MapBlocks are set not sent
// for them.
std::list<u16> far_players;
if(event->type == MEET_ADDNODE || event->type == MEET_SWAPNODE)
{
//infostream<<"Server: MEET_ADDNODE"<<std::endl;
prof.add("MEET_ADDNODE", 1);
if(disable_single_change_sending)
sendAddNode(event->p, event->n, event->already_known_by_peer,
&far_players, 5, event->type == MEET_ADDNODE);
else
sendAddNode(event->p, event->n, event->already_known_by_peer,
&far_players, 30, event->type == MEET_ADDNODE);
}
else if(event->type == MEET_REMOVENODE)
{
//infostream<<"Server: MEET_REMOVENODE"<<std::endl;
prof.add("MEET_REMOVENODE", 1);
if(disable_single_change_sending)
sendRemoveNode(event->p, event->already_known_by_peer,
&far_players, 5);
else
sendRemoveNode(event->p, event->already_known_by_peer,
&far_players, 30);
}
else if(event->type == 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);
}
else if(event->type == 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);
}
}
else
{
prof.add("unknown", 1);
infostream<<"WARNING: Server: Unknown MapEditEvent "
<<((u32)event->type)<<std::endl;
}
/*
Set blocks not sent to far players
*/
if(far_players.size() > 0)
{
// 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::list<u16>::iterator
i = far_players.begin();
i != far_players.end(); ++i)
{
u16 peer_id = *i;
RemoteClient *client = getClient(peer_id);
if(client==NULL)
continue;
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();
// Update m_enable_rollback_recording here too
m_enable_rollback_recording =
g_settings->getBool("enable_rollback_recording");
}
}
// Save map, players and auth stuff
{
float &counter = m_savemap_timer;
counter += dtime;
if(counter >= g_settings->getFloat("server_map_save_interval"))
{
counter = 0.0;
JMutexAutoLock 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;
u32 datasize;
try{
datasize = m_con.Receive(peer_id,data);
ProcessData(*data, datasize, peer_id);
}
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(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);
}
} catch (std::exception &e) {
m_clients.Unlock();
throw;
}
m_clients.Unlock();
RemotePlayer *player =
static_cast<RemotePlayer*>(m_env->getPlayer(playername.c_str()));
// If failed, cancel
if((playersao == NULL) || (player == NULL))
{
if(player && player->peer_id != 0){
errorstream<<"Server: "<<playername<<": Failed to emerge player"
<<" (player allocated to an another client)"<<std::endl;
DenyAccess(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(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
UpdateCrafting(peer_id);
SendInventory(peer_id);
// Send HP
if(g_settings->getBool("enable_damage"))
SendPlayerHP(peer_id);
// Send Breath
SendPlayerBreath(peer_id);
// Show death screen if necessary
if(player->hp == 0)
SendDeathscreen(peer_id, false, v3f(0,0,0));
// Note things in chat if not in simple singleplayer mode
if(!m_simple_singleplayer_mode)
{
// Send information about server to player in chat
SendChatMessage(peer_id, getStatusString());
// Send information about joining in chat
{
std::wstring name = L"unknown";
Player *player = m_env->getPlayer(peer_id);
if(player != NULL)
name = narrow_to_wide(player->getName());
std::wstring message;
message += L"*** ";
message += name;
message += L" joined the game.";
SendChatMessage(PEER_ID_INEXISTENT,message);
}
}
Address addr = getPeerAddress(player->peer_id);
std::string ip_str = addr.serializeString();
actionstream<<player->getName() <<" [" << ip_str << "] joins game. " << std::endl;
/*
Print out action
*/
{
std::vector<std::string> names = m_clients.getPlayerNames();
actionstream<<player->getName() <<" joins game. List of players: ";
for (std::vector<std::string>::iterator i = names.begin();
i != names.end(); i++)
{
actionstream << *i << " ";
}
actionstream << player->getName() <<std::endl;
}
return playersao;
}
void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
// Environment is locked first.
JMutexAutoLock envlock(m_env_mutex);
ScopeProfiler sp(g_profiler, "Server::ProcessData");
std::string addr_s;
try{
Address address = getPeerAddress(peer_id);
addr_s = address.serializeString();
// drop player if is ip is banned
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(peer_id, L"Your ip is banned. Banned name was "
+narrow_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(): Cancelling: peer "
<<peer_id<<" not found"<<std::endl;
return;
}
try
{
if(datasize < 2)
return;
ToServerCommand command = (ToServerCommand)readU16(&data[0]);
if(command == TOSERVER_INIT)
{
// [0] u16 TOSERVER_INIT
// [2] u8 SER_FMT_VER_HIGHEST_READ
// [3] u8[20] player_name
// [23] u8[28] password <--- can be sent without this, from old versions
if(datasize < 2+1+PLAYERNAME_SIZE)
return;
RemoteClient* client = getClient(peer_id, CS_Created);
// If net_proto_version is set, this client has already been handled
if(client->getState() > CS_Created)
{
verbosestream<<"Server: Ignoring multiple TOSERVER_INITs from "
<<addr_s<<" (peer_id="<<peer_id<<")"<<std::endl;
return;
}
verbosestream<<"Server: Got TOSERVER_INIT from "<<addr_s<<" (peer_id="
<<peer_id<<")"<<std::endl;
// Do not allow multiple players in simple singleplayer mode.
// This isn't a perfect way to do it, but will suffice for now
if(m_simple_singleplayer_mode && m_clients.getClientIDs().size() > 1){
infostream<<"Server: Not allowing another client ("<<addr_s
<<") to connect in simple singleplayer mode"<<std::endl;
DenyAccess(peer_id, L"Running in simple singleplayer mode.");
return;
}
// First byte after command is maximum supported
// serialization version
u8 client_max = data[2];
u8 our_max = SER_FMT_VER_HIGHEST_READ;
// Use the highest version supported by both
u8 deployed = std::min(client_max, our_max);
// If it's lower than the lowest supported, give up.
if(deployed < SER_FMT_VER_LOWEST)
deployed = SER_FMT_VER_INVALID;
if(deployed == SER_FMT_VER_INVALID)
{
actionstream<<"Server: A mismatched client tried to connect from "
<<addr_s<<std::endl;
infostream<<"Server: Cannot negotiate serialization version with "
<<addr_s<<std::endl;
DenyAccess(peer_id, std::wstring(
L"Your client's version is not supported.\n"
L"Server version is ")
+ narrow_to_wide(minetest_version_simple) + L"."
);
return;
}
client->setPendingSerializationVersion(deployed);
/*
Read and check network protocol version
*/
u16 min_net_proto_version = 0;
if(datasize >= 2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2)
min_net_proto_version = readU16(&data[2+1+PLAYERNAME_SIZE+PASSWORD_SIZE]);
// Use same version as minimum and maximum if maximum version field
// doesn't exist (backwards compatibility)
u16 max_net_proto_version = min_net_proto_version;
if(datasize >= 2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2+2)
max_net_proto_version = readU16(&data[2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2]);
// Start with client's maximum version
u16 net_proto_version = max_net_proto_version;
// Figure out a working version if it is possible at all
if(max_net_proto_version >= SERVER_PROTOCOL_VERSION_MIN ||
min_net_proto_version <= SERVER_PROTOCOL_VERSION_MAX)
{
// If maximum is larger than our maximum, go with our maximum
if(max_net_proto_version > SERVER_PROTOCOL_VERSION_MAX)
net_proto_version = SERVER_PROTOCOL_VERSION_MAX;
// Else go with client's maximum
else
net_proto_version = max_net_proto_version;
}
verbosestream<<"Server: "<<addr_s<<": Protocol version: min: "
<<min_net_proto_version<<", max: "<<max_net_proto_version
<<", chosen: "<<net_proto_version<<std::endl;
client->net_proto_version = net_proto_version;
if(net_proto_version < SERVER_PROTOCOL_VERSION_MIN ||
net_proto_version > SERVER_PROTOCOL_VERSION_MAX)
{
actionstream<<"Server: A mismatched client tried to connect from "
<<addr_s<<std::endl;
DenyAccess(peer_id, std::wstring(
L"Your client's version is not supported.\n"
L"Server version is ")
+ narrow_to_wide(minetest_version_simple) + L",\n"
+ L"server's PROTOCOL_VERSION is "
+ narrow_to_wide(itos(SERVER_PROTOCOL_VERSION_MIN))
+ L"..."
+ narrow_to_wide(itos(SERVER_PROTOCOL_VERSION_MAX))
+ L", client's PROTOCOL_VERSION is "
+ narrow_to_wide(itos(min_net_proto_version))
+ L"..."
+ narrow_to_wide(itos(max_net_proto_version))
);
return;
}
if(g_settings->getBool("strict_protocol_version_checking"))
{
if(net_proto_version != LATEST_PROTOCOL_VERSION)
{
actionstream<<"Server: A mismatched (strict) client tried to "
<<"connect from "<<addr_s<<std::endl;
DenyAccess(peer_id, std::wstring(
L"Your client's version is not supported.\n"
L"Server version is ")
+ narrow_to_wide(minetest_version_simple) + L",\n"
+ L"server's PROTOCOL_VERSION (strict) is "
+ narrow_to_wide(itos(LATEST_PROTOCOL_VERSION))
+ L", client's PROTOCOL_VERSION is "
+ narrow_to_wide(itos(min_net_proto_version))
+ L"..."
+ narrow_to_wide(itos(max_net_proto_version))
);
return;
}
}
/*
Set up player
*/
char playername[PLAYERNAME_SIZE];
unsigned int playername_length = 0;
for (; playername_length < PLAYERNAME_SIZE; playername_length++ ) {
playername[playername_length] = data[3+playername_length];
if (data[3+playername_length] == 0)
break;
}
if (playername_length == PLAYERNAME_SIZE) {
actionstream<<"Server: Player with name exceeding max length "
<<"tried to connect from "<<addr_s<<std::endl;
DenyAccess(peer_id, L"Name too long");
return;
}
if(playername[0]=='\0')
{
actionstream<<"Server: Player with an empty name "
<<"tried to connect from "<<addr_s<<std::endl;
DenyAccess(peer_id, L"Empty name");
return;
}
if(string_allowed(playername, PLAYERNAME_ALLOWED_CHARS)==false)
{
actionstream<<"Server: Player with an invalid name "
<<"tried to connect from "<<addr_s<<std::endl;
DenyAccess(peer_id, L"Name contains unallowed characters");
return;
}
if(!isSingleplayer() && strcasecmp(playername, "singleplayer") == 0)
{
actionstream<<"Server: Player with the name \"singleplayer\" "
<<"tried to connect from "<<addr_s<<std::endl;
DenyAccess(peer_id, L"Name is not allowed");
return;
}
{
std::string reason;
if(m_script->on_prejoinplayer(playername, addr_s, reason))
{
actionstream<<"Server: Player with the name \""<<playername<<"\" "
<<"tried to connect from "<<addr_s<<" "
<<"but it was disallowed for the following reason: "
<<reason<<std::endl;
DenyAccess(peer_id, narrow_to_wide(reason.c_str()));
return;
}
}
infostream<<"Server: New connection: \""<<playername<<"\" from "
<<addr_s<<" (peer_id="<<peer_id<<")"<<std::endl;
// Get password
char given_password[PASSWORD_SIZE];
if(datasize < 2+1+PLAYERNAME_SIZE+PASSWORD_SIZE)
{
// old version - assume blank password
given_password[0] = 0;
}
else
{
for(u32 i=0; i<PASSWORD_SIZE-1; i++)
{
given_password[i] = data[23+i];
}
given_password[PASSWORD_SIZE-1] = 0;
}
if(!base64_is_valid(given_password)){
actionstream<<"Server: "<<playername
<<" supplied invalid password hash"<<std::endl;
DenyAccess(peer_id, L"Invalid password hash");
return;
}
// Enforce user limit.
// Don't enforce for users that have some admin right
if(m_clients.getClientIDs(CS_Created).size() >= g_settings->getU16("max_users") &&
!checkPriv(playername, "server") &&
!checkPriv(playername, "ban") &&
!checkPriv(playername, "privs") &&
!checkPriv(playername, "password") &&
playername != g_settings->get("name"))
{
actionstream<<"Server: "<<playername<<" tried to join, but there"
<<" are already max_users="
<<g_settings->getU16("max_users")<<" players."<<std::endl;
DenyAccess(peer_id, L"Too many users.");
return;
}
std::string checkpwd; // Password hash to check against
bool has_auth = m_script->getAuth(playername, &checkpwd, NULL);
// If no authentication info exists for user, create it
if(!has_auth){
if(!isSingleplayer() &&
g_settings->getBool("disallow_empty_password") &&
std::string(given_password) == ""){
actionstream<<"Server: "<<playername
<<" supplied empty password"<<std::endl;
DenyAccess(peer_id, L"Empty passwords are "
L"disallowed. Set a password and try again.");
return;
}
std::wstring raw_default_password =
narrow_to_wide(g_settings->get("default_password"));
std::string initial_password =
translatePassword(playername, raw_default_password);
// If default_password is empty, allow any initial password
if (raw_default_password.length() == 0)
initial_password = given_password;
m_script->createAuth(playername, initial_password);
}
has_auth = m_script->getAuth(playername, &checkpwd, NULL);
if(!has_auth){
actionstream<<"Server: "<<playername<<" cannot be authenticated"
<<" (auth handler does not work?)"<<std::endl;
DenyAccess(peer_id, L"Not allowed to login");
return;
}
if(given_password != checkpwd){
actionstream<<"Server: "<<playername<<" supplied wrong password"
<<std::endl;
DenyAccess(peer_id, L"Wrong password");
return;
}
RemotePlayer *player =
static_cast<RemotePlayer*>(m_env->getPlayer(playername));
if(player && player->peer_id != 0){
errorstream<<"Server: "<<playername<<": Failed to emerge player"
<<" (player allocated to an another client)"<<std::endl;
DenyAccess(peer_id, L"Another client is connected with this "
L"name. If your client closed unexpectedly, try again in "
L"a minute.");
}
m_clients.setPlayerName(peer_id,playername);
/*
Answer with a TOCLIENT_INIT
*/
{
SharedBuffer<u8> reply(2+1+6+8+4);
writeU16(&reply[0], TOCLIENT_INIT);
writeU8(&reply[2], deployed);
//send dummy pos for legacy reasons only
writeV3S16(&reply[2+1], floatToInt(v3f(0,0,0), BS));
writeU64(&reply[2+1+6], m_env->getServerMap().getSeed());
writeF1000(&reply[2+1+6+8], g_settings->getFloat("dedicated_server_step"));
// Send as reliable
m_clients.send(peer_id, 0, reply, true);
m_clients.event(peer_id, CSE_Init);
}
return;
}
if(command == TOSERVER_INIT2)
{
verbosestream<<"Server: Got TOSERVER_INIT2 from "
<<peer_id<<std::endl;
m_clients.event(peer_id, CSE_GotInit2);
u16 protocol_version = m_clients.getProtocolVersion(peer_id);
///// begin compatibility code
PlayerSAO* playersao = NULL;
if (protocol_version <= 22) {
playersao = StageTwoClientInit(peer_id);
if (playersao == NULL) {
errorstream
<< "TOSERVER_INIT2 stage 2 client init failed for peer "
<< peer_id << std::endl;
return;
}
}
///// end compatibility code
/*
Send some initialization data
*/
infostream<<"Server: Sending content to "
<<getPlayerName(peer_id)<<std::endl;
// Send player movement settings
SendMovement(peer_id);
// Send item definitions
SendItemDef(peer_id, m_itemdef, protocol_version);
// Send node definitions
SendNodeDef(peer_id, m_nodedef, protocol_version);
m_clients.event(peer_id, CSE_SetDefinitionsSent);
// Send media announcement
sendMediaAnnouncement(peer_id);
// Send detached inventories
sendDetachedInventories(peer_id);
// Send time of day
u16 time = m_env->getTimeOfDay();
float time_speed = g_settings->getFloat("time_speed");
SendTimeOfDay(peer_id, time, time_speed);
///// begin compatibility code
if (protocol_version <= 22) {
m_clients.event(peer_id, CSE_SetClientReady);
m_script->on_joinplayer(playersao);
}
///// end compatibility code
// Warnings about protocol version can be issued here
if(getClient(peer_id)->net_proto_version < LATEST_PROTOCOL_VERSION)
{
SendChatMessage(peer_id, L"# Server: WARNING: YOUR CLIENT'S "
L"VERSION MAY NOT BE FULLY COMPATIBLE WITH THIS SERVER!");
}
return;
}
u8 peer_ser_ver = getClient(peer_id, CS_InitDone)->serialization_version;
u16 peer_proto_ver = getClient(peer_id, CS_InitDone)->net_proto_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 relate to client startup */
if(command == TOSERVER_REQUEST_MEDIA) {
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
std::list<std::string> tosend;
u16 numfiles = readU16(is);
infostream<<"Sending "<<numfiles<<" files to "
<<getPlayerName(peer_id)<<std::endl;
verbosestream<<"TOSERVER_REQUEST_MEDIA: "<<std::endl;
for(int i = 0; i < numfiles; i++) {
std::string name = deSerializeString(is);
tosend.push_back(name);
verbosestream<<"TOSERVER_REQUEST_MEDIA: requested file "
<<name<<std::endl;
}
sendRequestedMedia(peer_id, tosend);
return;
}
else if(command == TOSERVER_RECEIVED_MEDIA) {
return;
}
else if(command == TOSERVER_CLIENT_READY) {
// clients <= protocol version 22 did not send ready message,
// they're already initialized
if (peer_proto_ver <= 22) {
infostream << "Client sent message not expected by a "
<< "client using protocol version <= 22,"
<< "disconnecing peer_id: " << peer_id << std::endl;
m_con.DisconnectPeer(peer_id);
return;
}
PlayerSAO* playersao = StageTwoClientInit(peer_id);
if (playersao == NULL) {
errorstream
<< "TOSERVER_CLIENT_READY stage 2 client init failed for peer_id: "
<< peer_id << std::endl;
m_con.DisconnectPeer(peer_id);
return;
}
if(datasize < 2+8) {
errorstream
<< "TOSERVER_CLIENT_READY client sent inconsistent data, disconnecting peer_id: "
<< peer_id << std::endl;
m_con.DisconnectPeer(peer_id);
return;
}
m_clients.setClientVersion(
peer_id,
data[2], data[3], data[4],
std::string((char*) &data[8],(u16) data[6]));
m_clients.event(peer_id, CSE_SetClientReady);
m_script->on_joinplayer(playersao);
}
else if(command == TOSERVER_GOTBLOCKS)
{
if(datasize < 2+1)
return;
/*
[0] u16 command
[2] u8 count
[3] v3s16 pos_0
[3+6] v3s16 pos_1
...
*/
u16 count = data[2];
for(u16 i=0; i<count; i++)
{
if((s16)datasize < 2+1+(i+1)*6)
throw con::InvalidIncomingDataException
("GOTBLOCKS length is too short");
v3s16 p = readV3S16(&data[2+1+i*6]);
/*infostream<<"Server: GOTBLOCKS ("
<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
RemoteClient *client = getClient(peer_id);
client->GotBlock(p);
}
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;
}
Player *player = m_env->getPlayer(peer_id);
if(player == NULL) {
errorstream<<"Server::ProcessData(): Cancelling: "
"No player for peer_id="<<peer_id
<< " disconnecting peer!" <<std::endl;
m_con.DisconnectPeer(peer_id);
return;
}
PlayerSAO *playersao = player->getPlayerSAO();
if(playersao == NULL) {
errorstream<<"Server::ProcessData(): Cancelling: "
"No player object for peer_id="<<peer_id
<< " disconnecting peer!" <<std::endl;
m_con.DisconnectPeer(peer_id);
return;
}
if(command == TOSERVER_PLAYERPOS)
{
if(datasize < 2+12+12+4+4)
return;
u32 start = 0;
v3s32 ps = readV3S32(&data[start+2]);
v3s32 ss = readV3S32(&data[start+2+12]);
f32 pitch = (f32)readS32(&data[2+12+12]) / 100.0;
f32 yaw = (f32)readS32(&data[2+12+12+4]) / 100.0;
u32 keyPressed = 0;
if(datasize >= 2+12+12+4+4+4)
keyPressed = (u32)readU32(&data[2+12+12+4+4]);
v3f position((f32)ps.X/100., (f32)ps.Y/100., (f32)ps.Z/100.);
v3f speed((f32)ss.X/100., (f32)ss.Y/100., (f32)ss.Z/100.);
pitch = wrapDegrees(pitch);
yaw = wrapDegrees(yaw);
player->setPosition(position);
player->setSpeed(speed);
player->setPitch(pitch);
player->setYaw(yaw);
player->keyPressed=keyPressed;
player->control.up = (bool)(keyPressed&1);
player->control.down = (bool)(keyPressed&2);
player->control.left = (bool)(keyPressed&4);
player->control.right = (bool)(keyPressed&8);
player->control.jump = (bool)(keyPressed&16);
player->control.aux1 = (bool)(keyPressed&32);
player->control.sneak = (bool)(keyPressed&64);
player->control.LMB = (bool)(keyPressed&128);
player->control.RMB = (bool)(keyPressed&256);
bool cheated = playersao->checkMovementCheat();
if(cheated){
// Call callbacks
m_script->on_cheat(playersao, "moved_too_fast");
}
/*infostream<<"Server::ProcessData(): Moved player "<<peer_id<<" to "
<<"("<<position.X<<","<<position.Y<<","<<position.Z<<")"
<<" pitch="<<pitch<<" yaw="<<yaw<<std::endl;*/
}
else if(command == TOSERVER_DELETEDBLOCKS)
{
if(datasize < 2+1)
return;
/*
[0] u16 command
[2] u8 count
[3] v3s16 pos_0
[3+6] v3s16 pos_1
...
*/
u16 count = data[2];
for(u16 i=0; i<count; i++)
{
if((s16)datasize < 2+1+(i+1)*6)
throw con::InvalidIncomingDataException
("DELETEDBLOCKS length is too short");
v3s16 p = readV3S16(&data[2+1+i*6]);
/*infostream<<"Server: DELETEDBLOCKS ("
<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
RemoteClient *client = getClient(peer_id);
client->SetBlockNotSent(p);
}
}
else if(command == TOSERVER_CLICK_OBJECT)
{
infostream<<"Server: CLICK_OBJECT not supported anymore"<<std::endl;
return;
}
else if(command == TOSERVER_CLICK_ACTIVEOBJECT)
{
infostream<<"Server: CLICK_ACTIVEOBJECT not supported anymore"<<std::endl;
return;
}
else if(command == TOSERVER_GROUND_ACTION)
{
infostream<<"Server: GROUND_ACTION not supported anymore"<<std::endl;
return;
}
else if(command == TOSERVER_RELEASE)
{
infostream<<"Server: RELEASE not supported anymore"<<std::endl;
return;
}
else if(command == TOSERVER_SIGNTEXT)
{
infostream<<"Server: SIGNTEXT not supported anymore"
<<std::endl;
return;
}
else if(command == TOSERVER_SIGNNODETEXT)
{
infostream<<"Server: SIGNNODETEXT not supported anymore"
<<std::endl;
return;
}
else if(command == TOSERVER_INVENTORY_ACTION)
{
// Strip command and create a stream
std::string datastring((char*)&data[2], datasize-2);
verbosestream<<"TOSERVER_INVENTORY_ACTION: data="<<datastring<<std::endl;
std::istringstream is(datastring, std::ios_base::binary);
// Create an action
InventoryAction *a = InventoryAction::deSerialize(is);
if(a == NULL)
{
infostream<<"TOSERVER_INVENTORY_ACTION: "
<<"InventoryAction::deSerialize() returned NULL"
<<std::endl;
return;
}
// If something goes wrong, this player is to blame
RollbackScopeActor rollback_scope(m_rollback,
std::string("player:")+player->getName());
/*
Note: Always set inventory not sent, to repair cases
where the client made a bad prediction.
*/
/*
Handle restrictions and special cases of the move action
*/
if(a->getType() == IACTION_MOVE)
{
IMoveAction *ma = (IMoveAction*)a;
ma->from_inv.applyCurrentPlayer(player->getName());
ma->to_inv.applyCurrentPlayer(player->getName());
setInventoryModified(ma->from_inv);
setInventoryModified(ma->to_inv);
bool from_inv_is_current_player =
(ma->from_inv.type == InventoryLocation::PLAYER) &&
(ma->from_inv.name == player->getName());
bool to_inv_is_current_player =
(ma->to_inv.type == InventoryLocation::PLAYER) &&
(ma->to_inv.name == player->getName());
/*
Disable moving items out of craftpreview
*/
if(ma->from_list == "craftpreview")
{
infostream<<"Ignoring IMoveAction from "
<<(ma->from_inv.dump())<<":"<<ma->from_list
<<" to "<<(ma->to_inv.dump())<<":"<<ma->to_list
<<" because src is "<<ma->from_list<<std::endl;
delete a;
return;
}
/*
Disable moving items into craftresult and craftpreview
*/
if(ma->to_list == "craftpreview" || ma->to_list == "craftresult")
{
infostream<<"Ignoring IMoveAction from "
<<(ma->from_inv.dump())<<":"<<ma->from_list
<<" to "<<(ma->to_inv.dump())<<":"<<ma->to_list
<<" because dst is "<<ma->to_list<<std::endl;
delete a;
return;
}
// Disallow moving items in elsewhere than player's inventory
// if not allowed to interact
if(!checkPriv(player->getName(), "interact") &&
(!from_inv_is_current_player ||
!to_inv_is_current_player))
{
infostream<<"Cannot move outside of player's inventory: "
<<"No interact privilege"<<std::endl;
delete a;
return;
}
}
/*
Handle restrictions and special cases of the drop action
*/
else if(a->getType() == IACTION_DROP)
{
IDropAction *da = (IDropAction*)a;
da->from_inv.applyCurrentPlayer(player->getName());
setInventoryModified(da->from_inv);
/*
Disable dropping items out of craftpreview
*/
if(da->from_list == "craftpreview")
{
infostream<<"Ignoring IDropAction from "
<<(da->from_inv.dump())<<":"<<da->from_list
<<" because src is "<<da->from_list<<std::endl;
delete a;
return;
}
// Disallow dropping items if not allowed to interact
if(!checkPriv(player->getName(), "interact"))
{
delete a;
return;
}
}
/*
Handle restrictions and special cases of the craft action
*/
else if(a->getType() == IACTION_CRAFT)
{
ICraftAction *ca = (ICraftAction*)a;
ca->craft_inv.applyCurrentPlayer(player->getName());
setInventoryModified(ca->craft_inv);
//bool craft_inv_is_current_player =
// (ca->craft_inv.type == InventoryLocation::PLAYER) &&
// (ca->craft_inv.name == player->getName());
// Disallow crafting if not allowed to interact
if(!checkPriv(player->getName(), "interact"))
{
infostream<<"Cannot craft: "
<<"No interact privilege"<<std::endl;
delete a;
return;
}
}
// Do the action
a->apply(this, playersao, this);
// Eat the action
delete a;
}
else if(command == TOSERVER_CHAT_MESSAGE)
{
/*
u16 command
u16 length
wstring message
*/
u8 buf[6];
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
// Read stuff
is.read((char*)buf, 2);
u16 len = readU16(buf);
std::wstring message;
for(u16 i=0; i<len; i++)
{
is.read((char*)buf, 2);
message += (wchar_t)readU16(buf);
}
// If something goes wrong, this player is to blame
RollbackScopeActor rollback_scope(m_rollback,
std::string("player:")+player->getName());
// Get player name of this client
std::wstring name = narrow_to_wide(player->getName());
// Run script hook
bool ate = m_script->on_chat_message(player->getName(),
wide_to_narrow(message));
// If script ate the message, don't proceed
if(ate)
return;
// Line to send to players
std::wstring line;
// Whether to send to the player that sent the line
bool send_to_sender_only = false;
// Commands are implemented in Lua, so only catch invalid
// commands that were not "eaten" and send an error back
if(message[0] == L'/')
{
message = message.substr(1);
send_to_sender_only = true;
if(message.length() == 0)
line += L"-!- Empty command";
else
line += L"-!- Invalid command: " + str_split(message, L' ')[0];
}
else
{
if(checkPriv(player->getName(), "shout")){
line += L"<";
line += name;
line += L"> ";
line += message;
} else {
line += L"-!- You don't have permission to shout.";
send_to_sender_only = true;
}
}
if(line != L"")
{
/*
Send the message to sender
*/
if (send_to_sender_only)
{
SendChatMessage(peer_id, line);
}
/*
Send the message to others
*/
else
{
actionstream<<"CHAT: "<<wide_to_narrow(line)<<std::endl;
std::list<u16> clients = m_clients.getClientIDs();
for(std::list<u16>::iterator
i = clients.begin();
i != clients.end(); ++i)
{
if (*i != peer_id)
SendChatMessage(*i, line);
}
}
}
}
else if(command == TOSERVER_DAMAGE)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
u8 damage = readU8(is);
if(g_settings->getBool("enable_damage"))
{
actionstream<<player->getName()<<" damaged by "
<<(int)damage<<" hp at "<<PP(player->getPosition()/BS)
<<std::endl;
playersao->setHP(playersao->getHP() - damage);
if(playersao->getHP() == 0 && playersao->m_hp_not_sent)
DiePlayer(peer_id);
if(playersao->m_hp_not_sent)
SendPlayerHP(peer_id);
}
}
else if(command == TOSERVER_BREATH)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
u16 breath = readU16(is);
playersao->setBreath(breath);
m_script->player_event(playersao,"breath_changed");
}
else if(command == TOSERVER_PASSWORD)
{
/*
[0] u16 TOSERVER_PASSWORD
[2] u8[28] old password
[30] u8[28] new password
*/
if(datasize != 2+PASSWORD_SIZE*2)
return;
/*char password[PASSWORD_SIZE];
for(u32 i=0; i<PASSWORD_SIZE-1; i++)
password[i] = data[2+i];
password[PASSWORD_SIZE-1] = 0;*/
std::string oldpwd;
for(u32 i=0; i<PASSWORD_SIZE-1; i++)
{
char c = data[2+i];
if(c == 0)
break;
oldpwd += c;
}
std::string newpwd;
for(u32 i=0; i<PASSWORD_SIZE-1; i++)
{
char c = data[2+PASSWORD_SIZE+i];
if(c == 0)
break;
newpwd += c;
}
if(!base64_is_valid(newpwd)){
infostream<<"Server: "<<player->getName()<<" supplied invalid password hash"<<std::endl;
// Wrong old password supplied!!
SendChatMessage(peer_id, L"Invalid new password hash supplied. Password NOT changed.");
return;
}
infostream<<"Server: Client requests a password change from "
<<"'"<<oldpwd<<"' to '"<<newpwd<<"'"<<std::endl;
std::string playername = player->getName();
std::string checkpwd;
m_script->getAuth(playername, &checkpwd, NULL);
if(oldpwd != checkpwd)
{
infostream<<"Server: invalid old password"<<std::endl;
// Wrong old password supplied!!
SendChatMessage(peer_id, L"Invalid old password supplied. Password NOT changed.");
return;
}
bool success = m_script->setPassword(playername, newpwd);
if(success){
actionstream<<player->getName()<<" changes password"<<std::endl;
SendChatMessage(peer_id, L"Password change successful.");
} else {
actionstream<<player->getName()<<" tries to change password but "
<<"it fails"<<std::endl;
SendChatMessage(peer_id, L"Password change failed or inavailable.");
}
}
else if(command == TOSERVER_PLAYERITEM)
{
if (datasize < 2+2)
return;
u16 item = readU16(&data[2]);
playersao->setWieldIndex(item);
}
else if(command == TOSERVER_RESPAWN)
{
if(player->hp != 0 || !g_settings->getBool("enable_damage"))
return;
RespawnPlayer(peer_id);
actionstream<<player->getName()<<" respawns at "
<<PP(player->getPosition()/BS)<<std::endl;
// ActiveObject is added to environment in AsyncRunStep after
// the previous addition has been succesfully removed
}
else if(command == TOSERVER_INTERACT)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
/*
[0] u16 command
[2] u8 action
[3] u16 item
[5] u32 length of the next item
[9] serialized PointedThing
actions:
0: start digging (from undersurface) or use
1: stop digging (all parameters ignored)
2: digging completed
3: place block or item (to abovesurface)
4: use item
*/
u8 action = readU8(is);
u16 item_i = readU16(is);
std::istringstream tmp_is(deSerializeLongString(is), std::ios::binary);
PointedThing pointed;
pointed.deSerialize(tmp_is);
verbosestream<<"TOSERVER_INTERACT: action="<<(int)action<<", item="
<<item_i<<", pointed="<<pointed.dump()<<std::endl;
if(player->hp == 0)
{
verbosestream<<"TOSERVER_INTERACT: "<<player->getName()
<<" tried to interact, but is dead!"<<std::endl;
return;
}
v3f player_pos = playersao->getLastGoodPosition();
// Update wielded item
playersao->setWieldIndex(item_i);
// Get pointed to node (undefined if not POINTEDTYPE_NODE)
v3s16 p_under = pointed.node_undersurface;
v3s16 p_above = pointed.node_abovesurface;
// Get pointed to object (NULL if not POINTEDTYPE_OBJECT)
ServerActiveObject *pointed_object = NULL;
if(pointed.type == POINTEDTHING_OBJECT)
{
pointed_object = m_env->getActiveObject(pointed.object_id);
if(pointed_object == NULL)
{
verbosestream<<"TOSERVER_INTERACT: "
"pointed object is NULL"<<std::endl;
return;
}
}
v3f pointed_pos_under = player_pos;
v3f pointed_pos_above = player_pos;
if(pointed.type == POINTEDTHING_NODE)
{
pointed_pos_under = intToFloat(p_under, BS);
pointed_pos_above = intToFloat(p_above, BS);
}
else if(pointed.type == POINTEDTHING_OBJECT)
{
pointed_pos_under = pointed_object->getBasePosition();
pointed_pos_above = pointed_pos_under;
}
/*
Check that target is reasonably close
(only when digging or placing things)
*/
if(action == 0 || action == 2 || action == 3)
{
float d = player_pos.getDistanceFrom(pointed_pos_under);
float max_d = BS * 14; // Just some large enough value
if(d > max_d){
actionstream<<"Player "<<player->getName()
<<" tried to access "<<pointed.dump()
<<" from too far: "
<<"d="<<d<<", max_d="<<max_d
<<". ignoring."<<std::endl;
// Re-send block to revert change on client-side
RemoteClient *client = getClient(peer_id);
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
client->SetBlockNotSent(blockpos);
// Call callbacks
m_script->on_cheat(playersao, "interacted_too_far");
// Do nothing else
return;
}
}
/*
Make sure the player is allowed to do it
*/
if(!checkPriv(player->getName(), "interact"))
{
actionstream<<player->getName()<<" attempted to interact with "
<<pointed.dump()<<" without 'interact' privilege"
<<std::endl;
// Re-send block to revert change on client-side
RemoteClient *client = getClient(peer_id);
// Digging completed -> under
if(action == 2){
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
client->SetBlockNotSent(blockpos);
}
// Placement -> above
if(action == 3){
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
client->SetBlockNotSent(blockpos);
}
return;
}
/*
If something goes wrong, this player is to blame
*/
RollbackScopeActor rollback_scope(m_rollback,
std::string("player:")+player->getName());
/*
0: start digging or punch object
*/
if(action == 0)
{
if(pointed.type == POINTEDTHING_NODE)
{
/*
NOTE: This can be used in the future to check if
somebody is cheating, by checking the timing.
*/
MapNode n(CONTENT_IGNORE);
bool pos_ok;
n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
if (pos_ok)
n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
if (!pos_ok) {
infostream<<"Server: Not punching: Node not found."
<<" Adding block to emerge queue."
<<std::endl;
m_emerge->enqueueBlockEmerge(peer_id, getNodeBlockPos(p_above), false);
}
if(n.getContent() != CONTENT_IGNORE)
m_script->node_on_punch(p_under, n, playersao, pointed);
// Cheat prevention
playersao->noCheatDigStart(p_under);
}
else if(pointed.type == POINTEDTHING_OBJECT)
{
// Skip if object has been removed
if(pointed_object->m_removed)
return;
actionstream<<player->getName()<<" punches object "
<<pointed.object_id<<": "
<<pointed_object->getDescription()<<std::endl;
ItemStack punchitem = playersao->getWieldedItem();
ToolCapabilities toolcap =
punchitem.getToolCapabilities(m_itemdef);
v3f dir = (pointed_object->getBasePosition() -
(player->getPosition() + player->getEyeOffset())
).normalize();
float time_from_last_punch =
playersao->resetTimeFromLastPunch();
pointed_object->punch(dir, &toolcap, playersao,
time_from_last_punch);
}
} // action == 0
/*
1: stop digging
*/
else if(action == 1)
{
} // action == 1
/*
2: Digging completed
*/
else if(action == 2)
{
// Only digging of nodes
if(pointed.type == POINTEDTHING_NODE)
{
bool pos_ok;
MapNode n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
if (!pos_ok) {
infostream << "Server: Not finishing digging: Node not found."
<< " Adding block to emerge queue."
<< std::endl;
m_emerge->enqueueBlockEmerge(peer_id, getNodeBlockPos(p_above), false);
}
/* Cheat prevention */
bool is_valid_dig = true;
if(!isSingleplayer() && !g_settings->getBool("disable_anticheat"))
{
v3s16 nocheat_p = playersao->getNoCheatDigPos();
float nocheat_t = playersao->getNoCheatDigTime();
playersao->noCheatDigEnd();
// If player didn't start digging this, ignore dig
if(nocheat_p != p_under){
infostream<<"Server: NoCheat: "<<player->getName()
<<" started digging "
<<PP(nocheat_p)<<" and completed digging "
<<PP(p_under)<<"; not digging."<<std::endl;
is_valid_dig = false;
// Call callbacks
m_script->on_cheat(playersao, "finished_unknown_dig");
}
// Get player's wielded item
ItemStack playeritem;
InventoryList *mlist = playersao->getInventory()->getList("main");
if(mlist != NULL)
playeritem = mlist->getItem(playersao->getWieldIndex());
ToolCapabilities playeritem_toolcap =
playeritem.getToolCapabilities(m_itemdef);
// Get diggability and expected digging time
DigParams params = getDigParams(m_nodedef->get(n).groups,
&playeritem_toolcap);
// If can't dig, try hand
if(!params.diggable){
const ItemDefinition &hand = m_itemdef->get("");
const ToolCapabilities *tp = hand.tool_capabilities;
if(tp)
params = getDigParams(m_nodedef->get(n).groups, tp);
}
// If can't dig, ignore dig
if(!params.diggable){
infostream<<"Server: NoCheat: "<<player->getName()
<<" completed digging "<<PP(p_under)
<<", which is not diggable with tool. not digging."
<<std::endl;
is_valid_dig = false;
// Call callbacks
m_script->on_cheat(playersao, "dug_unbreakable");
}
// Check digging time
// If already invalidated, we don't have to
if(!is_valid_dig){
// Well not our problem then
}
// Clean and long dig
else if(params.time > 2.0 && nocheat_t * 1.2 > params.time){
// All is good, but grab time from pool; don't care if
// it's actually available
playersao->getDigPool().grab(params.time);
}
// Short or laggy dig
// Try getting the time from pool
else if(playersao->getDigPool().grab(params.time)){
// All is good
}
// Dig not possible
else{
infostream<<"Server: NoCheat: "<<player->getName()
<<" completed digging "<<PP(p_under)
<<"too fast; not digging."<<std::endl;
is_valid_dig = false;
// Call callbacks
m_script->on_cheat(playersao, "dug_too_fast");
}
}
/* Actually dig node */
if(is_valid_dig && n.getContent() != CONTENT_IGNORE)
m_script->node_on_dig(p_under, n, playersao);
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
RemoteClient *client = getClient(peer_id);
// Send unusual result (that is, node not being removed)
if(m_env->getMap().getNodeNoEx(p_under).getContent() != CONTENT_AIR)
{
// Re-send block to revert change on client-side
client->SetBlockNotSent(blockpos);
}
else {
client->ResendBlockIfOnWire(blockpos);
}
}
} // action == 2
/*
3: place block or right-click object
*/
else if(action == 3)
{
ItemStack item = playersao->getWieldedItem();
// Reset build time counter
if(pointed.type == POINTEDTHING_NODE &&
item.getDefinition(m_itemdef).type == ITEM_NODE)
getClient(peer_id)->m_time_from_building = 0.0;
if(pointed.type == POINTEDTHING_OBJECT)
{
// Right click object
// Skip if object has been removed
if(pointed_object->m_removed)
return;
actionstream<<player->getName()<<" right-clicks object "
<<pointed.object_id<<": "
<<pointed_object->getDescription()<<std::endl;
// Do stuff
pointed_object->rightClick(playersao);
}
else if(m_script->item_OnPlace(
item, playersao, pointed))
{
// Placement was handled in lua
// Apply returned ItemStack
playersao->setWieldedItem(item);
}
// If item has node placement prediction, always send the
// blocks to make sure the client knows what exactly happened
RemoteClient *client = getClient(peer_id);
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
v3s16 blockpos2 = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
if(item.getDefinition(m_itemdef).node_placement_prediction != "") {
client->SetBlockNotSent(blockpos);
if(blockpos2 != blockpos) {
client->SetBlockNotSent(blockpos2);
}
}
else {
client->ResendBlockIfOnWire(blockpos);
if(blockpos2 != blockpos) {
client->ResendBlockIfOnWire(blockpos2);
}
}
} // action == 3
/*
4: use
*/
else if(action == 4)
{
ItemStack item = playersao->getWieldedItem();
actionstream<<player->getName()<<" uses "<<item.name
<<", pointing at "<<pointed.dump()<<std::endl;
if(m_script->item_OnUse(
item, playersao, pointed))
{
// Apply returned ItemStack
playersao->setWieldedItem(item);
}
} // action == 4
/*
Catch invalid actions
*/
else
{
infostream<<"WARNING: Server: Invalid action "
<<action<<std::endl;
}
}
else if(command == TOSERVER_REMOVED_SOUNDS)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
int num = readU16(is);
for(int k=0; k<num; k++){
s32 id = readS32(is);
std::map<s32, ServerPlayingSound>::iterator i =
m_playing_sounds.find(id);
if(i == m_playing_sounds.end())
continue;
ServerPlayingSound &psound = i->second;
psound.clients.erase(peer_id);
if(psound.clients.size() == 0)
m_playing_sounds.erase(i++);
}
}
else if(command == TOSERVER_NODEMETA_FIELDS)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
v3s16 p = readV3S16(is);
std::string formname = deSerializeString(is);
int num = readU16(is);
std::map<std::string, std::string> fields;
for(int k=0; k<num; k++){
std::string fieldname = deSerializeString(is);
std::string fieldvalue = deSerializeLongString(is);
fields[fieldname] = fieldvalue;
}
// If something goes wrong, this player is to blame
RollbackScopeActor rollback_scope(m_rollback,
std::string("player:")+player->getName());
// Check the target node for rollback data; leave others unnoticed
RollbackNode rn_old(&m_env->getMap(), p, this);
m_script->node_on_receive_fields(p, formname, fields,playersao);
// Report rollback data
RollbackNode rn_new(&m_env->getMap(), p, this);
if(rollback() && rn_new != rn_old){
RollbackAction action;
action.setSetNode(p, rn_old, rn_new);
rollback()->reportAction(action);
}
}
else if(command == TOSERVER_INVENTORY_FIELDS)
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
std::string formname = deSerializeString(is);
int num = readU16(is);
std::map<std::string, std::string> fields;
for(int k=0; k<num; k++){
std::string fieldname = deSerializeString(is);
std::string fieldvalue = deSerializeLongString(is);
fields[fieldname] = fieldvalue;
}
m_script->on_playerReceiveFields(playersao, formname, fields);
}
else
{
infostream<<"Server::ProcessData(): Ignoring "
"unknown command "<<command<<std::endl;
}
} //try
catch(SendFailedException &e)
{
errorstream<<"Server::ProcessData(): SendFailedException: "
<<"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)
{
//infostream<<"Server::onMapEditEvent()"<<std::endl;
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_back(e);
}
Inventory* Server::getInventory(const InventoryLocation &loc)
{
switch(loc.type){
case InventoryLocation::UNDEFINED:
{}
break;
case InventoryLocation::CURRENT_PLAYER:
{}
break;
case InventoryLocation::PLAYER:
{
Player *player = 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:
assert(0);
}
return NULL;
}
void Server::setInventoryModified(const InventoryLocation &loc)
{
switch(loc.type){
case InventoryLocation::UNDEFINED:
{}
break;
case InventoryLocation::PLAYER:
{
Player *player = m_env->getPlayer(loc.name.c_str());
if(!player)
return;
PlayerSAO *playersao = player->getPlayerSAO();
if(!playersao)
return;
playersao->m_inventory_not_sent = true;
playersao->m_wielded_item_not_sent = true;
}
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:
assert(0);
}
}
void Server::SetBlocksNotSent(std::map<v3s16, MapBlock *>& block)
{
std::list<u16> clients = m_clients.getClientIDs();
m_clients.Lock();
// Set the modified blocks unsent for all the clients
for (std::list<u16>::iterator
i = clients.begin();
i != clients.end(); ++i) {
RemoteClient *client = m_clients.lockedGetClientNoEx(*i);
if (client != NULL)
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_back(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_back(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.pop_front();
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:
assert("Invalid peer change event received!" == 0);
break;
}
}
}
void Server::SendMovement(u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_MOVEMENT);
writeF1000(os, g_settings->getFloat("movement_acceleration_default"));
writeF1000(os, g_settings->getFloat("movement_acceleration_air"));
writeF1000(os, g_settings->getFloat("movement_acceleration_fast"));
writeF1000(os, g_settings->getFloat("movement_speed_walk"));
writeF1000(os, g_settings->getFloat("movement_speed_crouch"));
writeF1000(os, g_settings->getFloat("movement_speed_fast"));
writeF1000(os, g_settings->getFloat("movement_speed_climb"));
writeF1000(os, g_settings->getFloat("movement_speed_jump"));
writeF1000(os, g_settings->getFloat("movement_liquid_fluidity"));
writeF1000(os, g_settings->getFloat("movement_liquid_fluidity_smooth"));
writeF1000(os, g_settings->getFloat("movement_liquid_sink"));
writeF1000(os, g_settings->getFloat("movement_gravity"));
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendHP(u16 peer_id, u8 hp)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_HP);
writeU8(os, hp);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendBreath(u16 peer_id, u16 breath)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_BREATH);
writeU16(os, breath);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendAccessDenied(u16 peer_id,const std::wstring &reason)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_ACCESS_DENIED);
os<<serializeWideString(reason);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendDeathscreen(u16 peer_id,bool set_camera_point_target,
v3f camera_point_target)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_DEATHSCREEN);
writeU8(os, set_camera_point_target);
writeV3F1000(os, camera_point_target);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendItemDef(u16 peer_id,
IItemDefManager *itemdef, u16 protocol_version)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
/*
u16 command
u32 length of the next item
zlib-compressed serialized ItemDefManager
*/
writeU16(os, TOCLIENT_ITEMDEF);
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);
os<<serializeLongString(tmp_os2.str());
// Make data buffer
std::string s = os.str();
verbosestream<<"Server: Sending item definitions to id("<<peer_id
<<"): size="<<s.size()<<std::endl;
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendNodeDef(u16 peer_id,
INodeDefManager *nodedef, u16 protocol_version)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
/*
u16 command
u32 length of the next item
zlib-compressed serialized NodeDefManager
*/
writeU16(os, TOCLIENT_NODEDEF);
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);
os<<serializeLongString(tmp_os2.str());
// Make data buffer
std::string s = os.str();
verbosestream<<"Server: Sending node definitions to id("<<peer_id
<<"): size="<<s.size()<<std::endl;
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
/*
Non-static send methods
*/
void Server::SendInventory(u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
PlayerSAO *playersao = getPlayerSAO(peer_id);
assert(playersao);
playersao->m_inventory_not_sent = false;
/*
Serialize it
*/
std::ostringstream os;
playersao->getInventory()->serialize(os);
std::string s = os.str();
SharedBuffer<u8> data(s.size()+2);
writeU16(&data[0], TOCLIENT_INVENTORY);
memcpy(&data[2], s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendChatMessage(u16 peer_id, const std::wstring &message)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
u8 buf[12];
// Write command
writeU16(buf, TOCLIENT_CHAT_MESSAGE);
os.write((char*)buf, 2);
// Write length
writeU16(buf, message.size());
os.write((char*)buf, 2);
// Write string
for(u32 i=0; i<message.size(); i++)
{
u16 w = message[i];
writeU16(buf, w);
os.write((char*)buf, 2);
}
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
if (peer_id != PEER_ID_INEXISTENT)
{
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
else
{
m_clients.sendToAll(0,data,true);
}
}
void Server::SendShowFormspecMessage(u16 peer_id, const std::string &formspec,
const std::string &formname)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
u8 buf[12];
// Write command
writeU16(buf, TOCLIENT_SHOW_FORMSPEC);
os.write((char*)buf, 2);
os<<serializeLongString(FORMSPEC_VERSION_STRING + formspec);
os<<serializeString(formname);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
// Spawns a particle on peer with peer_id
void Server::SendSpawnParticle(u16 peer_id, v3f pos, v3f velocity, v3f acceleration,
float expirationtime, float size, bool collisiondetection,
bool vertical, std::string texture)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_SPAWN_PARTICLE);
writeV3F1000(os, pos);
writeV3F1000(os, velocity);
writeV3F1000(os, acceleration);
writeF1000(os, expirationtime);
writeF1000(os, size);
writeU8(os, collisiondetection);
os<<serializeLongString(texture);
writeU8(os, vertical);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
if (peer_id != PEER_ID_INEXISTENT)
{
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
else
{
m_clients.sendToAll(0,data,true);
}
}
// Adds a ParticleSpawner on peer with peer_id
void Server::SendAddParticleSpawner(u16 peer_id, 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 vertical, std::string texture, u32 id)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_ADD_PARTICLESPAWNER);
writeU16(os, amount);
writeF1000(os, spawntime);
writeV3F1000(os, minpos);
writeV3F1000(os, maxpos);
writeV3F1000(os, minvel);
writeV3F1000(os, maxvel);
writeV3F1000(os, minacc);
writeV3F1000(os, maxacc);
writeF1000(os, minexptime);
writeF1000(os, maxexptime);
writeF1000(os, minsize);
writeF1000(os, maxsize);
writeU8(os, collisiondetection);
os<<serializeLongString(texture);
writeU32(os, id);
writeU8(os, vertical);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
if (peer_id != PEER_ID_INEXISTENT)
{
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
else {
m_clients.sendToAll(0,data,true);
}
}
void Server::SendDeleteParticleSpawner(u16 peer_id, u32 id)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_DELETE_PARTICLESPAWNER);
writeU16(os, id);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
if (peer_id != PEER_ID_INEXISTENT) {
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
else {
m_clients.sendToAll(0,data,true);
}
}
void Server::SendHUDAdd(u16 peer_id, u32 id, HudElement *form)
{
std::ostringstream os(std::ios_base::binary);
// Write command
writeU16(os, TOCLIENT_HUDADD);
writeU32(os, id);
writeU8(os, (u8)form->type);
writeV2F1000(os, form->pos);
os << serializeString(form->name);
writeV2F1000(os, form->scale);
os << serializeString(form->text);
writeU32(os, form->number);
writeU32(os, form->item);
writeU32(os, form->dir);
writeV2F1000(os, form->align);
writeV2F1000(os, form->offset);
writeV3F1000(os, form->world_pos);
writeV2S32(os,form->size);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 1, data, true);
}
void Server::SendHUDRemove(u16 peer_id, u32 id)
{
std::ostringstream os(std::ios_base::binary);
// Write command
writeU16(os, TOCLIENT_HUDRM);
writeU32(os, id);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 1, data, true);
}
void Server::SendHUDChange(u16 peer_id, u32 id, HudElementStat stat, void *value)
{
std::ostringstream os(std::ios_base::binary);
// Write command
writeU16(os, TOCLIENT_HUDCHANGE);
writeU32(os, id);
writeU8(os, (u8)stat);
switch (stat) {
case HUD_STAT_POS:
case HUD_STAT_SCALE:
case HUD_STAT_ALIGN:
case HUD_STAT_OFFSET:
writeV2F1000(os, *(v2f *)value);
break;
case HUD_STAT_NAME:
case HUD_STAT_TEXT:
os << serializeString(*(std::string *)value);
break;
case HUD_STAT_WORLD_POS:
writeV3F1000(os, *(v3f *)value);
break;
case HUD_STAT_SIZE:
writeV2S32(os,*(v2s32 *)value);
break;
case HUD_STAT_NUMBER:
case HUD_STAT_ITEM:
case HUD_STAT_DIR:
default:
writeU32(os, *(u32 *)value);
break;
}
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendHUDSetFlags(u16 peer_id, u32 flags, u32 mask)
{
std::ostringstream os(std::ios_base::binary);
// Write command
writeU16(os, TOCLIENT_HUD_SET_FLAGS);
//////////////////////////// compatibility code to be removed //////////////
flags &= ~(HUD_FLAG_HEALTHBAR_VISIBLE | HUD_FLAG_BREATHBAR_VISIBLE);
////////////////////////////////////////////////////////////////////////////
writeU32(os, flags);
writeU32(os, mask);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendHUDSetParam(u16 peer_id, u16 param, const std::string &value)
{
std::ostringstream os(std::ios_base::binary);
// Write command
writeU16(os, TOCLIENT_HUD_SET_PARAM);
writeU16(os, param);
os<<serializeString(value);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendSetSky(u16 peer_id, const video::SColor &bgcolor,
const std::string &type, const std::vector<std::string> &params)
{
std::ostringstream os(std::ios_base::binary);
// Write command
writeU16(os, TOCLIENT_SET_SKY);
writeARGB8(os, bgcolor);
os<<serializeString(type);
writeU16(os, params.size());
for(size_t i=0; i<params.size(); i++)
os<<serializeString(params[i]);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendOverrideDayNightRatio(u16 peer_id, bool do_override,
float ratio)
{
std::ostringstream os(std::ios_base::binary);
// Write command
writeU16(os, TOCLIENT_OVERRIDE_DAY_NIGHT_RATIO);
writeU8(os, do_override);
writeU16(os, ratio*65535);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendTimeOfDay(u16 peer_id, u16 time, f32 time_speed)
{
DSTACK(__FUNCTION_NAME);
// Make packet
SharedBuffer<u8> data(2+2+4);
writeU16(&data[0], TOCLIENT_TIME_OF_DAY);
writeU16(&data[2], time);
writeF1000(&data[4], time_speed);
if (peer_id == PEER_ID_INEXISTENT) {
m_clients.sendToAll(0,data,true);
}
else {
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
}
void Server::SendPlayerHP(u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
PlayerSAO *playersao = getPlayerSAO(peer_id);
assert(playersao);
playersao->m_hp_not_sent = false;
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_back(aom);
}
void Server::SendPlayerBreath(u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
PlayerSAO *playersao = getPlayerSAO(peer_id);
assert(playersao);
playersao->m_breath_not_sent = false;
m_script->player_event(playersao,"breath_changed");
SendBreath(peer_id, playersao->getBreath());
}
void Server::SendMovePlayer(u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
Player *player = m_env->getPlayer(peer_id);
assert(player);
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_MOVE_PLAYER);
writeV3F1000(os, player->getPosition());
writeF1000(os, player->getPitch());
writeF1000(os, player->getYaw());
{
v3f pos = player->getPosition();
f32 pitch = player->getPitch();
f32 yaw = player->getYaw();
verbosestream<<"Server: Sending TOCLIENT_MOVE_PLAYER"
<<" pos=("<<pos.X<<","<<pos.Y<<","<<pos.Z<<")"
<<" pitch="<<pitch
<<" yaw="<<yaw
<<std::endl;
}
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendLocalPlayerAnimations(u16 peer_id, v2s32 animation_frames[4], f32 animation_speed)
{
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_LOCAL_PLAYER_ANIMATIONS);
writeV2S32(os, animation_frames[0]);
writeV2S32(os, animation_frames[1]);
writeV2S32(os, animation_frames[2]);
writeV2S32(os, animation_frames[3]);
writeF1000(os, animation_speed);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendEyeOffset(u16 peer_id, v3f first, v3f third)
{
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_EYE_OFFSET);
writeV3F1000(os, first);
writeV3F1000(os, third);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendPlayerPrivileges(u16 peer_id)
{
Player *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);
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_PRIVILEGES);
writeU16(os, privs.size());
for(std::set<std::string>::const_iterator i = privs.begin();
i != privs.end(); i++){
os<<serializeString(*i);
}
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
void Server::SendPlayerInventoryFormspec(u16 peer_id)
{
Player *player = m_env->getPlayer(peer_id);
assert(player);
if(player->peer_id == PEER_ID_INEXISTENT)
return;
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_INVENTORY_FORMSPEC);
os<<serializeLongString(FORMSPEC_VERSION_STRING + player->inventory_formspec);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
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::list<u16> dst_clients;
if(params.to_player != "")
{
Player *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::list<u16> clients = m_clients.getClientIDs();
for(std::list<u16>::iterator
i = clients.begin(); i != clients.end(); ++i)
{
Player *player = m_env->getPlayer(*i);
if(!player)
continue;
if(pos_exists){
if(player->getPosition().getDistanceFrom(pos) >
params.max_hear_distance)
continue;
}
dst_clients.push_back(*i);
}
}
if(dst_clients.size() == 0)
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;
for(std::list<u16>::iterator i = dst_clients.begin();
i != dst_clients.end(); i++)
psound.clients.insert(*i);
// Create packet
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_PLAY_SOUND);
writeS32(os, id);
os<<serializeString(spec.name);
writeF1000(os, spec.gain * params.gain);
writeU8(os, params.type);
writeV3F1000(os, pos);
writeU16(os, params.object);
writeU8(os, params.loop);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send
for(std::list<u16>::iterator i = dst_clients.begin();
i != dst_clients.end(); i++){
// Send as reliable
m_clients.send(*i, 0, data, true);
}
return id;
}
void Server::stopSound(s32 handle)
{
// Get sound reference
std::map<s32, ServerPlayingSound>::iterator i =
m_playing_sounds.find(handle);
if(i == m_playing_sounds.end())
return;
ServerPlayingSound &psound = i->second;
// Create packet
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_STOP_SOUND);
writeS32(os, handle);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send
for(std::set<u16>::iterator i = psound.clients.begin();
i != psound.clients.end(); i++){
// Send as reliable
m_clients.send(*i, 0, data, true);
}
// Remove sound reference
m_playing_sounds.erase(i);
}
void Server::sendRemoveNode(v3s16 p, u16 ignore_id,
std::list<u16> *far_players, float far_d_nodes)
{
float maxd = far_d_nodes*BS;
v3f p_f = intToFloat(p, BS);
// Create packet
u32 replysize = 8;
SharedBuffer<u8> reply(replysize);
writeU16(&reply[0], TOCLIENT_REMOVENODE);
writeS16(&reply[2], p.X);
writeS16(&reply[4], p.Y);
writeS16(&reply[6], p.Z);
std::list<u16> clients = m_clients.getClientIDs();
for(std::list<u16>::iterator
i = clients.begin();
i != clients.end(); ++i)
{
if(far_players)
{
// Get player
Player *player = m_env->getPlayer(*i);
if(player)
{
// If player is far away, only set modified blocks not sent
v3f player_pos = player->getPosition();
if(player_pos.getDistanceFrom(p_f) > maxd)
{
far_players->push_back(*i);
continue;
}
}
}
// Send as reliable
m_clients.send(*i, 0, reply, true);
}
}
void Server::sendAddNode(v3s16 p, MapNode n, u16 ignore_id,
std::list<u16> *far_players, float far_d_nodes,
bool remove_metadata)
{
float maxd = far_d_nodes*BS;
v3f p_f = intToFloat(p, BS);
std::list<u16> clients = m_clients.getClientIDs();
for(std::list<u16>::iterator
i = clients.begin();
i != clients.end(); ++i)
{
if(far_players)
{
// Get player
Player *player = m_env->getPlayer(*i);
if(player)
{
// If player is far away, only set modified blocks not sent
v3f player_pos = player->getPosition();
if(player_pos.getDistanceFrom(p_f) > maxd)
{
far_players->push_back(*i);
continue;
}
}
}
SharedBuffer<u8> reply(0);
m_clients.Lock();
RemoteClient* client = m_clients.lockedGetClientNoEx(*i);
if (client != 0)
{
// Create packet
u32 replysize = 9 + MapNode::serializedLength(client->serialization_version);
reply = SharedBuffer<u8>(replysize);
writeU16(&reply[0], TOCLIENT_ADDNODE);
writeS16(&reply[2], p.X);
writeS16(&reply[4], p.Y);
writeS16(&reply[6], p.Z);
n.serialize(&reply[8], client->serialization_version);
u32 index = 8 + MapNode::serializedLength(client->serialization_version);
writeU8(&reply[index], remove_metadata ? 0 : 1);
if (!remove_metadata) {
if (client->net_proto_version <= 21) {
// Old clients always clear metadata; fix it
// by sending the full block again.
client->SetBlockNotSent(p);
}
}
}
m_clients.Unlock();
// Send as reliable
if (reply.getSize() > 0)
m_clients.send(*i, 0, reply, true);
}
}
void Server::setBlockNotSent(v3s16 p)
{
std::list<u16> clients = m_clients.getClientIDs();
m_clients.Lock();
for(std::list<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();
#if 0
// Analyze it a bit
bool completely_air = true;
for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
{
if(block->getNodeNoEx(v3s16(x0,y0,z0)).d != CONTENT_AIR)
{
completely_air = false;
x0 = y0 = z0 = MAP_BLOCKSIZE; // Break out
}
}
// Print result
infostream<<"Server: Sending block ("<<p.X<<","<<p.Y<<","<<p.Z<<"): ";
if(completely_air)
infostream<<"[completely air] ";
infostream<<std::endl;
#endif
/*
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, net_proto_version);
std::string s = os.str();
SharedBuffer<u8> blockdata((u8*)s.c_str(), s.size());
u32 replysize = 8 + blockdata.getSize();
SharedBuffer<u8> reply(replysize);
writeU16(&reply[0], TOCLIENT_BLOCKDATA);
writeS16(&reply[2], p.X);
writeS16(&reply[4], p.Y);
writeS16(&reply[6], p.Z);
memcpy(&reply[8], *blockdata, blockdata.getSize());
/*infostream<<"Server: Sending block ("<<p.X<<","<<p.Y<<","<<p.Z<<")"
<<": \tpacket size: "<<replysize<<std::endl;*/
/*
Send packet
*/
m_clients.send(peer_id, 2, reply, true);
}
void Server::SendBlocks(float dtime)
{
DSTACK(__FUNCTION_NAME);
JMutexAutoLock 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::list<u16> clients = m_clients.getClientIDs();
m_clients.Lock();
for(std::list<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::list<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::list<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() == false){
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
this->m_media[filename] = MediaInfo(filepath, sha1_base64);
verbosestream<<"Server: "<<sha1_hex<<" is "<<filename<<std::endl;
}
}
}
struct SendableMediaAnnouncement
{
std::string name;
std::string sha1_digest;
SendableMediaAnnouncement(const std::string &name_="",
const std::string &sha1_digest_=""):
name(name_),
sha1_digest(sha1_digest_)
{}
};
void Server::sendMediaAnnouncement(u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
verbosestream<<"Server: Announcing files to id("<<peer_id<<")"
<<std::endl;
std::list<SendableMediaAnnouncement> file_announcements;
for(std::map<std::string, MediaInfo>::iterator i = m_media.begin();
i != m_media.end(); i++){
// Put in list
file_announcements.push_back(
SendableMediaAnnouncement(i->first, i->second.sha1_digest));
}
// Make packet
std::ostringstream os(std::ios_base::binary);
/*
u16 command
u32 number of files
for each texture {
u16 length of name
string name
u16 length of sha1_digest
string sha1_digest
}
*/
writeU16(os, TOCLIENT_ANNOUNCE_MEDIA);
writeU16(os, file_announcements.size());
for(std::list<SendableMediaAnnouncement>::iterator
j = file_announcements.begin();
j != file_announcements.end(); ++j){
os<<serializeString(j->name);
os<<serializeString(j->sha1_digest);
}
os<<serializeString(g_settings->get("remote_media"));
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
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::list<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::list<SendableMedia> > file_bunches;
file_bunches.push_back(std::list<SendableMedia>());
u32 file_size_bunch_total = 0;
for(std::list<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::list<SendableMedia>());
file_size_bunch_total = 0;
}
}
/* Create and send packets */
u32 num_bunches = file_bunches.size();
for(u32 i=0; i<num_bunches; i++)
{
std::ostringstream os(std::ios_base::binary);
/*
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
}
*/
writeU16(os, TOCLIENT_MEDIA);
writeU16(os, num_bunches);
writeU16(os, i);
writeU32(os, file_bunches[i].size());
for(std::list<SendableMedia>::iterator
j = file_bunches[i].begin();
j != file_bunches[i].end(); ++j){
os<<serializeString(j->name);
os<<serializeLongString(j->data);
}
// Make data buffer
std::string s = os.str();
verbosestream<<"Server::sendRequestedMedia(): bunch "
<<i<<"/"<<num_bunches
<<" files="<<file_bunches[i].size()
<<" size=" <<s.size()<<std::endl;
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_clients.send(peer_id, 2, data, true);
}
}
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);
writeU16(os, TOCLIENT_DETACHED_INVENTORY);
os<<serializeString(name);
inv->serialize(os);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
if (peer_id != PEER_ID_INEXISTENT)
{
// Send as reliable
m_clients.send(peer_id, 0, data, true);
}
else
{
m_clients.sendToAll(0,data,true);
}
}
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);
assert(playersao);
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);
bool repositioned = m_script->on_respawnplayer(playersao);
if(!repositioned){
v3f pos = findSpawnPos(m_env->getServerMap());
playersao->setPos(pos);
}
}
void Server::DenyAccess(u16 peer_id, const std::wstring &reason)
{
DSTACK(__FUNCTION_NAME);
SendAccessDenied(peer_id, reason);
m_clients.event(peer_id, CSE_SetDenied);
m_con.DisconnectPeer(peer_id);
}
void Server::DeleteClient(u16 peer_id, ClientDeletionReason reason)
{
DSTACK(__FUNCTION_NAME);
std::wstring message;
{
/*
Clear references to playing sounds
*/
for(std::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.size() == 0)
m_playing_sounds.erase(i++);
else
i++;
}
Player *player = m_env->getPlayer(peer_id);
// Collect information about leaving in chat
{
if(player != NULL && reason != CDR_DENY)
{
std::wstring name = narrow_to_wide(player->getName());
message += L"*** ";
message += name;
message += L" left the game.";
if(reason == CDR_TIMEOUT)
message += L" (timed out)";
}
}
/* Run scripts and remove from environment */
{
if(player != NULL)
{
PlayerSAO *playersao = player->getPlayerSAO();
assert(playersao);
m_script->on_leaveplayer(playersao);
playersao->disconnected();
}
}
/*
Print out action
*/
{
if(player != NULL && reason != CDR_DENY)
{
std::ostringstream os(std::ios_base::binary);
std::list<u16> clients = m_clients.getClientIDs();
for(std::list<u16>::iterator
i = clients.begin();
i != clients.end(); ++i)
{
// Get player
Player *player = m_env->getPlayer(*i);
if(!player)
continue;
// Get name of player
os<<player->getName()<<" ";
}
actionstream<<player->getName()<<" "
<<(reason==CDR_TIMEOUT?"times out.":"leaves game.")
<<" List of players: "<<os.str()<<std::endl;
}
}
{
JMutexAutoLock 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(u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
Player* player = m_env->getPlayer(peer_id);
assert(player);
// Get a preview for crafting
ItemStack preview;
InventoryLocation loc;
loc.setPlayer(player->getName());
getCraftingResult(&player->inventory, preview, 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");
assert(plist);
assert(plist->getSize() >= 1);
plist->changeItem(0, preview);
}
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)
{
Player *player = m_env->getPlayer(peer_id);
if(player == NULL)
return "[id="+itos(peer_id)+"]";
return player->getName();
}
PlayerSAO* Server::getPlayerSAO(u16 peer_id)
{
Player *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(minetest_version_simple);
// 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::list<u16> clients = m_clients.getClientIDs();
for(std::list<u16>::iterator i = clients.begin();
i != clients.end(); ++i)
{
// Get player
Player *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::list<u16> clients = m_clients.getClientIDs();
for(std::list<u16>::iterator
i = clients.begin();
i != clients.end(); ++i){
Player *player = m_env->getPlayer(*i);
reportPrivsModified(player->getName());
}
} else {
Player *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)
{
Player *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)
{
Player *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)
{
Player *player = m_env->getPlayer(playername);
if(!player)
{
infostream<<"showFormspec: couldn't find player:"<<playername<<std::endl;
return false;
}
SendShowFormspecMessage(player->peer_id, formspec, formname);
return true;
}
u32 Server::hudAdd(Player *player, HudElement *form) {
if (!player)
return -1;
u32 id = player->addHud(form);
SendHUDAdd(player->peer_id, id, form);
return id;
}
bool Server::hudRemove(Player *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(Player *player, u32 id, HudElementStat stat, void *data) {
if (!player)
return false;
SendHUDChange(player->peer_id, id, stat, data);
return true;
}
bool Server::hudSetFlags(Player *player, u32 flags, u32 mask) {
if (!player)
return false;
SendHUDSetFlags(player->peer_id, 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(Player *player, s32 hotbar_itemcount) {
if (!player)
return false;
if (hotbar_itemcount <= 0 || hotbar_itemcount > HUD_HOTBAR_ITEMCOUNT_MAX)
return false;
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(Player *player, std::string name) {
if (!player)
return;
SendHUDSetParam(player->peer_id, HUD_PARAM_HOTBAR_IMAGE, name);
}
void Server::hudSetHotbarSelectedImage(Player *player, std::string name) {
if (!player)
return;
SendHUDSetParam(player->peer_id, HUD_PARAM_HOTBAR_SELECTED_IMAGE, name);
}
bool Server::setLocalPlayerAnimations(Player *player, v2s32 animation_frames[4], f32 frame_speed)
{
if (!player)
return false;
SendLocalPlayerAnimations(player->peer_id, animation_frames, frame_speed);
return true;
}
bool Server::setPlayerEyeOffset(Player *player, v3f first, v3f third)
{
if (!player)
return false;
SendEyeOffset(player->peer_id, first, third);
return true;
}
bool Server::setSky(Player *player, const video::SColor &bgcolor,
const std::string &type, const std::vector<std::string> &params)
{
if (!player)
return false;
SendSetSky(player->peer_id, bgcolor, type, params);
return true;
}
bool Server::overrideDayNightRatio(Player *player, bool do_override,
float ratio)
{
if (!player)
return false;
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 char *playername, v3f pos,
v3f velocity, v3f acceleration,
float expirationtime, float size, bool
collisiondetection, bool vertical, std::string texture)
{
Player *player = m_env->getPlayer(playername);
if(!player)
return;
SendSpawnParticle(player->peer_id, pos, velocity, acceleration,
expirationtime, size, collisiondetection, vertical, texture);
}
void Server::spawnParticleAll(v3f pos, v3f velocity, v3f acceleration,
float expirationtime, float size,
bool collisiondetection, bool vertical, std::string texture)
{
SendSpawnParticle(PEER_ID_INEXISTENT,pos, velocity, acceleration,
expirationtime, size, collisiondetection, vertical, texture);
}
u32 Server::addParticleSpawner(const char *playername,
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 vertical, std::string texture)
{
Player *player = m_env->getPlayer(playername);
if(!player)
return -1;
u32 id = 0;
for(;;) // look for unused particlespawner id
{
id++;
if (std::find(m_particlespawner_ids.begin(),
m_particlespawner_ids.end(), id)
== m_particlespawner_ids.end())
{
m_particlespawner_ids.push_back(id);
break;
}
}
SendAddParticleSpawner(player->peer_id, amount, spawntime,
minpos, maxpos, minvel, maxvel, minacc, maxacc,
minexptime, maxexptime, minsize, maxsize,
collisiondetection, vertical, texture, id);
return id;
}
u32 Server::addParticleSpawnerAll(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 vertical, std::string texture)
{
u32 id = 0;
for(;;) // look for unused particlespawner id
{
id++;
if (std::find(m_particlespawner_ids.begin(),
m_particlespawner_ids.end(), id)
== m_particlespawner_ids.end())
{
m_particlespawner_ids.push_back(id);
break;
}
}
SendAddParticleSpawner(PEER_ID_INEXISTENT, amount, spawntime,
minpos, maxpos, minvel, maxvel, minacc, maxacc,
minexptime, maxexptime, minsize, maxsize,
collisiondetection, vertical, texture, id);
return id;
}
void Server::deleteParticleSpawner(const char *playername, u32 id)
{
Player *player = m_env->getPlayer(playername);
if(!player)
return;
m_particlespawner_ids.erase(
std::remove(m_particlespawner_ids.begin(),
m_particlespawner_ids.end(), id),
m_particlespawner_ids.end());
SendDeleteParticleSpawner(player->peer_id, id);
}
void Server::deleteParticleSpawnerAll(u32 id)
{
m_particlespawner_ids.erase(
std::remove(m_particlespawner_ids.begin(),
m_particlespawner_ids.end(), id),
m_particlespawner_ids.end());
SendDeleteParticleSpawner(PEER_ID_INEXISTENT, id);
}
Inventory* Server::createDetachedInventory(const std::string &name)
{
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);
assert(inv);
m_detached_inventories[name] = inv;
//TODO find a better way to do this
sendDetachedInventory(name,PEER_ID_INEXISTENT);
return inv;
}
class BoolScopeSet
{
public:
BoolScopeSet(bool *dst, bool val):
m_dst(dst)
{
m_orig_state = *m_dst;
*m_dst = val;
}
~BoolScopeSet()
{
*m_dst = m_orig_state;
}
private:
bool *m_dst;
bool m_orig_state;
};
// 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;
}
ITextureSource* Server::getTextureSource()
{
return NULL;
}
IShaderSource* Server::getShaderSource()
{
return NULL;
}
scene::ISceneManager* Server::getSceneManager()
{
return NULL;
}
u16 Server::allocateUnknownNodeId(const std::string &name)
{
return m_nodedef->allocateDummy(name);
}
ISoundManager* Server::getSoundManager()
{
return &dummySoundManager;
}
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)
{
for(std::vector<ModSpec>::iterator i = m_mods.begin();
i != m_mods.end(); i++){
const ModSpec &mod = *i;
if(mod.name == modname)
return &mod;
}
return NULL;
}
void Server::getModNames(std::list<std::string> &modlist)
{
for(std::vector<ModSpec>::iterator i = m_mods.begin(); i != m_mods.end(); i++)
{
modlist.push_back(i->name);
}
}
std::string Server::getBuiltinLuaPath()
{
return porting::path_share + DIR_DELIM + "builtin";
}
v3f findSpawnPos(ServerMap &map)
{
//return v3f(50,50,50)*BS;
v3s16 nodepos;
#if 0
nodepos = v2s16(0,0);
groundheight = 20;
#endif
#if 1
s16 water_level = map.getWaterLevel();
// Try to find a good place a few times
for(s32 i=0; i<1000; 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 ground height at point
s16 groundheight = map.findGroundLevel(nodepos2d);
if (groundheight <= water_level) // Don't go underwater
continue;
if (groundheight > water_level + 6) // Don't go to high places
continue;
nodepos = v3s16(nodepos2d.X, groundheight, nodepos2d.Y);
bool is_good = false;
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){
is_good = true;
break;
}
}
nodepos.Y++;
}
if(is_good){
// Found a good place
//infostream<<"Searched through "<<i<<" places."<<std::endl;
break;
}
}
#endif
return intToFloat(nodepos, BS);
}
PlayerSAO* Server::emergePlayer(const char *name, u16 peer_id)
{
RemotePlayer *player = NULL;
bool newplayer = false;
/*
Try to get an existing player
*/
player = static_cast<RemotePlayer*>(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;
}
// Load player if it isn't already loaded
if (!player) {
player = static_cast<RemotePlayer*>(m_env->loadPlayer(name));
}
// Create player if it doesn't exist
if (!player) {
newplayer = true;
player = new RemotePlayer(this, name);
// Set player position
infostream<<"Server: Finding spawn place for player \""
<<name<<"\""<<std::endl;
v3f pos = findSpawnPos(m_env->getServerMap());
player->setPosition(pos);
// Make sure the player is saved
player->setModified(true);
// Add player to environment
m_env->addPlayer(player);
}
// Create a new player active object
PlayerSAO *playersao = new PlayerSAO(m_env, player, peer_id,
getPlayerEffectivePrivs(player->getName()),
isSingleplayer());
/* 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;
}
void dedicated_server_loop(Server &server, bool &kill)
{
DSTACK(__FUNCTION_NAME);
verbosestream<<"dedicated_server_loop()"<<std::endl;
IntervalLimiter m_profiler_interval;
for(;;)
{
float steplen = g_settings->getFloat("dedicated_server_step");
// 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)
{
infostream<<"Dedicated server quitting"<<std::endl;
#if USE_CURL
if(g_settings->getBool("server_announce") == true)
ServerList::sendAnnounce("delete");
#endif
break;
}
/*
Profiler
*/
float profiler_print_interval =
g_settings->getFloat("profiler_print_interval");
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();
}
}
}
}