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minetest/src/server.cpp

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/*
Minetest-c55
Copyright (C) 2010-2011 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 "clientserver.h"
#include "map.h"
#include "jmutexautolock.h"
#include "main.h"
#include "constants.h"
#include "voxel.h"
#include "config.h"
#include "filesys.h"
#include "mapblock.h"
#include "serverobject.h"
#include "settings.h"
#include "profiler.h"
#include "log.h"
#include "script.h"
#include "scriptapi.h"
#include "nodedef.h"
#include "itemdef.h"
#include "craftdef.h"
#include "mapgen.h"
#include "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 "util/string.h"
#include "util/pointedthing.h"
#include "util/mathconstants.h"
#include "rollback.h"
#include "util/serialize.h"
#define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
#define BLOCK_EMERGE_FLAG_FROMDISK (1<<0)
class MapEditEventIgnorer
{
public:
MapEditEventIgnorer(bool *flag):
m_flag(flag)
{
if(*m_flag == false)
*m_flag = true;
else
m_flag = NULL;
}
~MapEditEventIgnorer()
{
if(m_flag)
{
assert(*m_flag);
*m_flag = false;
}
}
private:
bool *m_flag;
};
class MapEditEventAreaIgnorer
{
public:
MapEditEventAreaIgnorer(VoxelArea *ignorevariable, const VoxelArea &a):
m_ignorevariable(ignorevariable)
{
if(m_ignorevariable->getVolume() == 0)
*m_ignorevariable = a;
else
m_ignorevariable = NULL;
}
~MapEditEventAreaIgnorer()
{
if(m_ignorevariable)
{
assert(m_ignorevariable->getVolume() != 0);
*m_ignorevariable = VoxelArea();
}
}
private:
VoxelArea *m_ignorevariable;
};
void * ServerThread::Thread()
{
ThreadStarted();
log_register_thread("ServerThread");
DSTACK(__FUNCTION_NAME);
BEGIN_DEBUG_EXCEPTION_HANDLER
while(getRun())
{
try{
//TimeTaker timer("AsyncRunStep() + Receive()");
{
//TimeTaker timer("AsyncRunStep()");
m_server->AsyncRunStep();
}
//infostream<<"Running m_server->Receive()"<<std::endl;
m_server->Receive();
}
catch(con::NoIncomingDataException &e)
{
}
catch(con::PeerNotFoundException &e)
{
infostream<<"Server: PeerNotFoundException"<<std::endl;
}
catch(con::ConnectionBindFailed &e)
{
m_server->setAsyncFatalError(e.what());
}
catch(LuaError &e)
{
m_server->setAsyncFatalError(e.what());
}
}
END_DEBUG_EXCEPTION_HANDLER(errorstream)
return NULL;
}
void * EmergeThread::Thread()
{
ThreadStarted();
log_register_thread("EmergeThread");
DSTACK(__FUNCTION_NAME);
BEGIN_DEBUG_EXCEPTION_HANDLER
bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
v3s16 last_tried_pos(-32768,-32768,-32768); // For error output
ServerMap &map = ((ServerMap&)m_server->m_env->getMap());
EmergeManager *emerge = m_server->m_emerge;
Mapgen *mapgen = emerge->getMapgen();
/*
Get block info from queue, emerge them and send them
to clients.
After queue is empty, exit.
*/
while(getRun())
try{
QueuedBlockEmerge *qptr = m_server->m_emerge_queue.pop();
if(qptr == NULL)
break;
SharedPtr<QueuedBlockEmerge> q(qptr);
v3s16 &p = q->pos;
v2s16 p2d(p.X,p.Z);
last_tried_pos = p;
/*
Do not generate over-limit
*/
if(blockpos_over_limit(p))
continue;
//infostream<<"EmergeThread::Thread(): running"<<std::endl;
//TimeTaker timer("block emerge");
/*
Try to emerge it from somewhere.
If it is only wanted as optional, only loading from disk
will be allowed.
*/
/*
Check if any peer wants it as non-optional. In that case it
will be generated.
Also decrement the emerge queue count in clients.
*/
bool only_from_disk = true;
{
core::map<u16, u8>::Iterator i;
for(i=q->peer_ids.getIterator(); i.atEnd()==false; i++)
{
//u16 peer_id = i.getNode()->getKey();
// Check flags
u8 flags = i.getNode()->getValue();
if((flags & BLOCK_EMERGE_FLAG_FROMDISK) == false)
only_from_disk = false;
}
}
if(enable_mapgen_debug_info)
infostream<<"EmergeThread: p="
<<"("<<p.X<<","<<p.Y<<","<<p.Z<<") "
<<"only_from_disk="<<only_from_disk<<std::endl;
MapBlock *block = NULL;
bool got_block = true;
core::map<v3s16, MapBlock*> modified_blocks;
/*
Try to fetch block from memory or disk.
If not found and asked to generate, initialize generator.
*/
bool started_generate = false;
BlockMakeData data;
{
JMutexAutoLock envlock(m_server->m_env_mutex);
// Load sector if it isn't loaded
if(map.getSectorNoGenerateNoEx(p2d) == NULL)
map.loadSectorMeta(p2d);
// Attempt to load block
block = map.getBlockNoCreateNoEx(p);
if(!block || block->isDummy() || !block->isGenerated())
{
if(enable_mapgen_debug_info)
infostream<<"EmergeThread: not in memory, "
<<"attempting to load from disk"<<std::endl;
block = map.loadBlock(p);
}
// If could not load and allowed to generate, start generation
// inside this same envlock
if(only_from_disk == false &&
(block == NULL || block->isGenerated() == false)){
if(enable_mapgen_debug_info)
infostream<<"EmergeThread: generating"<<std::endl;
started_generate = true;
map.initBlockMake(&data, p);
}
}
/*
If generator was initialized, generate now when envlock is free.
*/
if(started_generate)
{
{
ScopeProfiler sp(g_profiler, "EmergeThread: mapgen::make_block",
SPT_AVG);
TimeTaker t("mapgen::make_block()");
mapgen->makeChunk(&data);
//mapgen::make_block(&data);
if(enable_mapgen_debug_info == false)
t.stop(true); // Hide output
}
do{ // enable break
// Lock environment again to access the map
JMutexAutoLock envlock(m_server->m_env_mutex);
ScopeProfiler sp(g_profiler, "EmergeThread: after "
"mapgen::make_block (envlock)", SPT_AVG);
// Blit data back on map, update lighting, add mobs and
// whatever this does
map.finishBlockMake(&data, modified_blocks);
// Get central block
block = map.getBlockNoCreateNoEx(p);
// If block doesn't exist, don't try doing anything with it
// This happens if the block is not in generation boundaries
if(!block)
break;
/*
Do some post-generate stuff
*/
v3s16 minp = data.blockpos_min*MAP_BLOCKSIZE;
v3s16 maxp = data.blockpos_max*MAP_BLOCKSIZE +
v3s16(1,1,1)*(MAP_BLOCKSIZE-1);
/*
Ignore map edit events, they will not need to be
sent to anybody because the block hasn't been sent
to anybody
*/
//MapEditEventIgnorer ign(&m_server->m_ignore_map_edit_events);
MapEditEventAreaIgnorer ign(
&m_server->m_ignore_map_edit_events_area,
VoxelArea(minp, maxp));
{
TimeTaker timer("on_generated");
scriptapi_environment_on_generated(m_server->m_lua,
minp, maxp, emerge->getBlockSeed(minp));
/*int t = timer.stop(true);
dstream<<"on_generated took "<<t<<"ms"<<std::endl;*/
}
if(enable_mapgen_debug_info)
infostream<<"EmergeThread: ended up with: "
<<analyze_block(block)<<std::endl;
// Activate objects and stuff
m_server->m_env->activateBlock(block, 0);
}while(false);
}
if(block == NULL)
got_block = false;
/*
Set sent status of modified blocks on clients
*/
// NOTE: Server's clients are also behind the connection mutex
JMutexAutoLock lock(m_server->m_con_mutex);
/*
Add the originally fetched block to the modified list
*/
if(got_block)
{
modified_blocks.insert(p, block);
}
/*
Set the modified blocks unsent for all the clients
*/
for(core::map<u16, RemoteClient*>::Iterator
i = m_server->m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
if(modified_blocks.size() > 0)
{
// Remove block from sent history
client->SetBlocksNotSent(modified_blocks);
}
}
}
catch(VersionMismatchException &e)
{
std::ostringstream err;
err<<"World data version mismatch in MapBlock "<<PP(last_tried_pos)<<std::endl;
err<<"----"<<std::endl;
err<<"\""<<e.what()<<"\""<<std::endl;
err<<"See debug.txt."<<std::endl;
err<<"World probably saved by a newer version of Minetest."<<std::endl;
m_server->setAsyncFatalError(err.str());
}
catch(SerializationError &e)
{
std::ostringstream err;
err<<"Invalid data in MapBlock "<<PP(last_tried_pos)<<std::endl;
err<<"----"<<std::endl;
err<<"\""<<e.what()<<"\""<<std::endl;
err<<"See debug.txt."<<std::endl;
err<<"You can ignore this using [ignore_world_load_errors = true]."<<std::endl;
m_server->setAsyncFatalError(err.str());
}
END_DEBUG_EXCEPTION_HANDLER(errorstream)
log_deregister_thread();
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);
}
void RemoteClient::GetNextBlocks(Server *server, float dtime,
core::array<PrioritySortedBlockTransfer> &dest)
{
DSTACK(__FUNCTION_NAME);
/*u32 timer_result;
TimeTaker timer("RemoteClient::GetNextBlocks", &timer_result);*/
// Increment timers
m_nothing_to_send_pause_timer -= dtime;
m_nearest_unsent_reset_timer += dtime;
if(m_nothing_to_send_pause_timer >= 0)
return;
Player *player = server->m_env->getPlayer(peer_id);
// This can happen sometimes; clients and players are not in perfect sync.
if(player == NULL)
return;
// Won't send anything if already sending
if(m_blocks_sending.size() >= g_settings->getU16
("max_simultaneous_block_sends_per_client"))
{
//infostream<<"Not sending any blocks, Queue full."<<std::endl;
return;
}
//TimeTaker timer("RemoteClient::GetNextBlocks");
v3f playerpos = player->getPosition();
v3f playerspeed = player->getSpeed();
v3f playerspeeddir(0,0,0);
if(playerspeed.getLength() > 1.0*BS)
playerspeeddir = playerspeed / playerspeed.getLength();
// Predict to next block
v3f playerpos_predicted = playerpos + playerspeeddir*MAP_BLOCKSIZE*BS;
v3s16 center_nodepos = floatToInt(playerpos_predicted, BS);
v3s16 center = getNodeBlockPos(center_nodepos);
// Camera position and direction
v3f camera_pos = player->getEyePosition();
v3f camera_dir = v3f(0,0,1);
camera_dir.rotateYZBy(player->getPitch());
camera_dir.rotateXZBy(player->getYaw());
/*infostream<<"camera_dir=("<<camera_dir.X<<","<<camera_dir.Y<<","
<<camera_dir.Z<<")"<<std::endl;*/
/*
Get the starting value of the block finder radius.
*/
if(m_last_center != center)
{
m_nearest_unsent_d = 0;
m_last_center = center;
}
/*infostream<<"m_nearest_unsent_reset_timer="
<<m_nearest_unsent_reset_timer<<std::endl;*/
// Reset periodically to workaround for some bugs or stuff
if(m_nearest_unsent_reset_timer > 20.0)
{
m_nearest_unsent_reset_timer = 0;
m_nearest_unsent_d = 0;
//infostream<<"Resetting m_nearest_unsent_d for "
// <<server->getPlayerName(peer_id)<<std::endl;
}
//s16 last_nearest_unsent_d = m_nearest_unsent_d;
s16 d_start = m_nearest_unsent_d;
//infostream<<"d_start="<<d_start<<std::endl;
u16 max_simul_sends_setting = g_settings->getU16
("max_simultaneous_block_sends_per_client");
u16 max_simul_sends_usually = max_simul_sends_setting;
/*
Check the time from last addNode/removeNode.
Decrease send rate if player is building stuff.
*/
m_time_from_building += dtime;
if(m_time_from_building < g_settings->getFloat(
"full_block_send_enable_min_time_from_building"))
{
max_simul_sends_usually
= LIMITED_MAX_SIMULTANEOUS_BLOCK_SENDS;
}
/*
Number of blocks sending + number of blocks selected for sending
*/
u32 num_blocks_selected = m_blocks_sending.size();
/*
next time d will be continued from the d from which the nearest
unsent block was found this time.
This is because not necessarily any of the blocks found this
time are actually sent.
*/
s32 new_nearest_unsent_d = -1;
s16 d_max = g_settings->getS16("max_block_send_distance");
s16 d_max_gen = g_settings->getS16("max_block_generate_distance");
// Don't loop very much at a time
s16 max_d_increment_at_time = 2;
if(d_max > d_start + max_d_increment_at_time)
d_max = d_start + max_d_increment_at_time;
/*if(d_max_gen > d_start+2)
d_max_gen = d_start+2;*/
//infostream<<"Starting from "<<d_start<<std::endl;
s32 nearest_emerged_d = -1;
s32 nearest_emergefull_d = -1;
s32 nearest_sent_d = -1;
bool queue_is_full = false;
s16 d;
for(d = d_start; d <= d_max; d++)
{
/*errorstream<<"checking d="<<d<<" for "
<<server->getPlayerName(peer_id)<<std::endl;*/
//infostream<<"RemoteClient::SendBlocks(): d="<<d<<std::endl;
/*
If m_nearest_unsent_d was changed by the EmergeThread
(it can change it to 0 through SetBlockNotSent),
update our d to it.
Else update m_nearest_unsent_d
*/
/*if(m_nearest_unsent_d != last_nearest_unsent_d)
{
d = m_nearest_unsent_d;
last_nearest_unsent_d = m_nearest_unsent_d;
}*/
/*
Get the border/face dot coordinates of a "d-radiused"
box
*/
core::list<v3s16> list;
getFacePositions(list, d);
core::list<v3s16>::Iterator li;
for(li=list.begin(); li!=list.end(); li++)
{
v3s16 p = *li + center;
/*
Send throttling
- Don't allow too many simultaneous transfers
- EXCEPT when the blocks are very close
Also, don't send blocks that are already flying.
*/
// Start with the usual maximum
u16 max_simul_dynamic = max_simul_sends_usually;
// If block is very close, allow full maximum
if(d <= BLOCK_SEND_DISABLE_LIMITS_MAX_D)
max_simul_dynamic = max_simul_sends_setting;
// Don't select too many blocks for sending
if(num_blocks_selected >= max_simul_dynamic)
{
queue_is_full = true;
goto queue_full_break;
}
// Don't send blocks that are currently being transferred
if(m_blocks_sending.find(p) != NULL)
continue;
/*
Do not go over-limit
*/
if(p.X < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.X > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.Y < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.Y > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.Z < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.Z > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE)
continue;
// If this is true, inexistent block will be made from scratch
bool generate = d <= d_max_gen;
{
/*// Limit the generating area vertically to 2/3
if(abs(p.Y - center.Y) > d_max_gen - d_max_gen / 3)
generate = false;*/
// Limit the send area vertically to 1/2
if(abs(p.Y - center.Y) > d_max / 2)
continue;
}
#if 0
/*
If block is far away, don't generate it unless it is
near ground level.
*/
if(d >= 4)
{
#if 1
// Block center y in nodes
f32 y = (f32)(p.Y * MAP_BLOCKSIZE + MAP_BLOCKSIZE/2);
// Don't generate if it's very high or very low
if(y < -64 || y > 64)
generate = false;
#endif
#if 0
v2s16 p2d_nodes_center(
MAP_BLOCKSIZE*p.X,
MAP_BLOCKSIZE*p.Z);
// Get ground height in nodes
s16 gh = server->m_env->getServerMap().findGroundLevel(
p2d_nodes_center);
// If differs a lot, don't generate
if(fabs(gh - y) > MAP_BLOCKSIZE*2)
generate = false;
// Actually, don't even send it
//continue;
#endif
}
#endif
//infostream<<"d="<<d<<std::endl;
#if 1
/*
Don't generate or send if not in sight
FIXME This only works if the client uses a small enough
FOV setting. The default of 72 degrees is fine.
*/
float camera_fov = (72.0*M_PI/180) * 4./3.;
if(isBlockInSight(p, camera_pos, camera_dir, camera_fov, 10000*BS) == false)
{
continue;
}
#endif
/*
Don't send already sent blocks
*/
{
if(m_blocks_sent.find(p) != NULL)
{
continue;
}
}
/*
Check if map has this block
*/
MapBlock *block = server->m_env->getMap().getBlockNoCreateNoEx(p);
bool surely_not_found_on_disk = false;
bool block_is_invalid = false;
if(block != NULL)
{
// Reset usage timer, this block will be of use in the future.
block->resetUsageTimer();
// Block is dummy if data doesn't exist.
// It means it has been not found from disk and not generated
if(block->isDummy())
{
surely_not_found_on_disk = true;
}
// Block is valid if lighting is up-to-date and data exists
if(block->isValid() == false)
{
block_is_invalid = true;
}
/*if(block->isFullyGenerated() == false)
{
block_is_invalid = true;
}*/
#if 0
v2s16 p2d(p.X, p.Z);
ServerMap *map = (ServerMap*)(&server->m_env->getMap());
v2s16 chunkpos = map->sector_to_chunk(p2d);
if(map->chunkNonVolatile(chunkpos) == false)
block_is_invalid = true;
#endif
if(block->isGenerated() == false)
block_is_invalid = true;
#if 1
/*
If block is not close, don't send it unless it is near
ground level.
Block is near ground level if night-time mesh
differs from day-time mesh.
*/
if(d >= 4)
{
if(block->getDayNightDiff() == false)
continue;
}
#endif
}
/*
If block has been marked to not exist on disk (dummy)
and generating new ones is not wanted, skip block.
*/
if(generate == false && surely_not_found_on_disk == true)
{
// get next one.
continue;
}
/*
Add inexistent block to emerge queue.
*/
if(block == NULL || surely_not_found_on_disk || block_is_invalid)
{
//TODO: Get value from somewhere
// Allow only one block in emerge queue
//if(server->m_emerge_queue.peerItemCount(peer_id) < 1)
// Allow two blocks in queue per client
//if(server->m_emerge_queue.peerItemCount(peer_id) < 2)
u32 max_emerge = 5;
// Make it more responsive when needing to generate stuff
if(surely_not_found_on_disk)
max_emerge = 1;
if(server->m_emerge_queue.peerItemCount(peer_id) < max_emerge)
{
//infostream<<"Adding block to emerge queue"<<std::endl;
// Add it to the emerge queue and trigger the thread
u8 flags = 0;
if(generate == false)
flags |= BLOCK_EMERGE_FLAG_FROMDISK;
server->m_emerge_queue.addBlock(peer_id, p, flags);
server->m_emergethread.trigger();
if(nearest_emerged_d == -1)
nearest_emerged_d = d;
} else {
if(nearest_emergefull_d == -1)
nearest_emergefull_d = d;
goto queue_full_break;
}
// get next one.
continue;
}
if(nearest_sent_d == -1)
nearest_sent_d = d;
/*
Add block to send queue
*/
/*errorstream<<"sending from d="<<d<<" to "
<<server->getPlayerName(peer_id)<<std::endl;*/
PrioritySortedBlockTransfer q((float)d, p, peer_id);
dest.push_back(q);
num_blocks_selected += 1;
}
}
queue_full_break:
//infostream<<"Stopped at "<<d<<std::endl;
// If nothing was found for sending and nothing was queued for
// emerging, continue next time browsing from here
if(nearest_emerged_d != -1){
new_nearest_unsent_d = nearest_emerged_d;
} else if(nearest_emergefull_d != -1){
new_nearest_unsent_d = nearest_emergefull_d;
} else {
if(d > g_settings->getS16("max_block_send_distance")){
new_nearest_unsent_d = 0;
m_nothing_to_send_pause_timer = 2.0;
/*infostream<<"GetNextBlocks(): d wrapped around for "
<<server->getPlayerName(peer_id)
<<"; setting to 0 and pausing"<<std::endl;*/
} else {
if(nearest_sent_d != -1)
new_nearest_unsent_d = nearest_sent_d;
else
new_nearest_unsent_d = d;
}
}
if(new_nearest_unsent_d != -1)
m_nearest_unsent_d = new_nearest_unsent_d;
/*timer_result = timer.stop(true);
if(timer_result != 0)
infostream<<"GetNextBlocks timeout: "<<timer_result<<" (!=0)"<<std::endl;*/
}
void RemoteClient::GotBlock(v3s16 p)
{
if(m_blocks_sending.find(p) != NULL)
m_blocks_sending.remove(p);
else
{
/*infostream<<"RemoteClient::GotBlock(): Didn't find in"
" m_blocks_sending"<<std::endl;*/
m_excess_gotblocks++;
}
m_blocks_sent.insert(p, true);
}
void RemoteClient::SentBlock(v3s16 p)
{
if(m_blocks_sending.find(p) == NULL)
m_blocks_sending.insert(p, 0.0);
else
infostream<<"RemoteClient::SentBlock(): Sent block"
" already in m_blocks_sending"<<std::endl;
}
void RemoteClient::SetBlockNotSent(v3s16 p)
{
m_nearest_unsent_d = 0;
if(m_blocks_sending.find(p) != NULL)
m_blocks_sending.remove(p);
if(m_blocks_sent.find(p) != NULL)
m_blocks_sent.remove(p);
}
void RemoteClient::SetBlocksNotSent(core::map<v3s16, MapBlock*> &blocks)
{
m_nearest_unsent_d = 0;
for(core::map<v3s16, MapBlock*>::Iterator
i = blocks.getIterator();
i.atEnd()==false; i++)
{
v3s16 p = i.getNode()->getKey();
if(m_blocks_sending.find(p) != NULL)
m_blocks_sending.remove(p);
if(m_blocks_sent.find(p) != NULL)
m_blocks_sent.remove(p);
}
}
/*
PlayerInfo
*/
PlayerInfo::PlayerInfo()
{
name[0] = 0;
avg_rtt = 0;
}
void PlayerInfo::PrintLine(std::ostream *s)
{
(*s)<<id<<": ";
(*s)<<"\""<<name<<"\" ("
<<(position.X/10)<<","<<(position.Y/10)
<<","<<(position.Z/10)<<") ";
address.print(s);
(*s)<<" avg_rtt="<<avg_rtt;
(*s)<<std::endl;
}
/*
Server
*/
Server::Server(
const std::string &path_world,
const std::string &path_config,
const SubgameSpec &gamespec,
bool simple_singleplayer_mode
):
m_path_world(path_world),
m_path_config(path_config),
m_gamespec(gamespec),
m_simple_singleplayer_mode(simple_singleplayer_mode),
m_async_fatal_error(""),
m_env(NULL),
m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, this),
m_banmanager(path_world+DIR_DELIM+"ipban.txt"),
m_rollback(NULL),
m_rollback_sink_enabled(true),
m_enable_rollback_recording(false),
m_emerge(NULL),
m_biomedef(NULL),
m_lua(NULL),
m_itemdef(createItemDefManager()),
m_nodedef(createNodeDefManager()),
m_craftdef(createCraftDefManager()),
m_event(new EventManager()),
m_thread(this),
m_emergethread(this),
m_time_of_day_send_timer(0),
m_uptime(0),
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_print_info_timer = 0.0;
m_objectdata_timer = 0.0;
m_emergethread_trigger_timer = 0.0;
m_savemap_timer = 0.0;
m_env_mutex.Init();
m_con_mutex.Init();
m_step_dtime_mutex.Init();
m_step_dtime = 0.0;
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<<"- config: "<<m_path_config<<std::endl;
infostream<<"- game: "<<m_gamespec.path<<std::endl;
// Create biome definition manager
m_biomedef = new BiomeDefManager(this);
// Create rollback manager
std::string rollback_path = m_path_world+DIR_DELIM+"rollback.txt";
m_rollback = createRollbackManager(rollback_path, this);
// Create world if it doesn't exist
if(!initializeWorld(m_path_world, m_gamespec.id))
throw ServerError("Failed to initialize world");
ModConfiguration modconf(m_path_world);
m_mods = modconf.getMods();
// complain about mods with unsatisfied dependencies
if(!modconf.isConsistent())
{
errorstream << "The following mods have unsatisfied dependencies: ";
std::list<ModSpec> modlist = modconf.getUnsatisfiedMods();
for(std::list<ModSpec>::iterator it = modlist.begin();
it != modlist.end(); ++it)
{
errorstream << (*it).name << " ";
}
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> exclude_mod_names;
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)
{
if(worldmt_settings.getBool(name))
load_mod_names.insert(name.substr(9));
else
exclude_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);
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;
}
// Path to builtin.lua
std::string builtinpath = getBuiltinLuaPath() + DIR_DELIM + "builtin.lua";
// Lock environment
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
// Initialize scripting
infostream<<"Server: Initializing Lua"<<std::endl;
m_lua = script_init();
assert(m_lua);
// Export API
scriptapi_export(m_lua, this);
// Load and run builtin.lua
infostream<<"Server: Loading builtin.lua [\""
<<builtinpath<<"\"]"<<std::endl;
bool success = scriptapi_loadmod(m_lua, builtinpath, "__builtin");
if(!success){
errorstream<<"Server: Failed to load and run "
<<builtinpath<<std::endl;
throw ModError("Failed to load and run "+builtinpath);
}
// 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 = scriptapi_loadmod(m_lua, 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);
// Add default biomes after nodedef had its aliases added
m_biomedef->addDefaultBiomes();
// Create emerge manager
m_emerge = new EmergeManager(this, m_biomedef);
// Initialize Environment
ServerMap *servermap = new ServerMap(path_world, this, m_emerge);
m_env = new ServerEnvironment(servermap, m_lua, this, this);
m_emerge->initMapgens(servermap->getMapgenParams());
// Give environment reference to scripting api
scriptapi_add_environment(m_lua, 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(m_path_world);
}
// Load players
infostream<<"Server: Loading players"<<std::endl;
m_env->deSerializePlayers(m_path_world);
/*
Add some test ActiveBlockModifiers to environment
*/
add_legacy_abms(m_env, m_nodedef);
}
Server::~Server()
{
infostream<<"Server destructing"<<std::endl;
/*
Send shutdown message
*/
{
JMutexAutoLock conlock(m_con_mutex);
std::wstring line = L"*** Server shutting down";
/*
Send the message to clients
*/
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
// Get client and check that it is valid
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
try{
SendChatMessage(client->peer_id, line);
}
catch(con::PeerNotFoundException &e)
{}
}
}
{
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
/*
Execute script shutdown hooks
*/
scriptapi_on_shutdown(m_lua);
}
{
JMutexAutoLock envlock(m_env_mutex);
/*
Save players
*/
infostream<<"Server: Saving players"<<std::endl;
m_env->serializePlayers(m_path_world);
/*
Save environment metadata
*/
infostream<<"Server: Saving environment metadata"<<std::endl;
m_env->saveMeta(m_path_world);
}
/*
Stop threads
*/
stop();
/*
Delete clients
*/
{
JMutexAutoLock clientslock(m_con_mutex);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
// Delete client
delete i.getNode()->getValue();
}
}
// Delete things in the reverse order of creation
delete m_env;
delete m_rollback;
delete m_emerge;
delete m_event;
delete m_itemdef;
delete m_nodedef;
delete m_craftdef;
// Deinitialize scripting
infostream<<"Server: Deinitializing scripting"<<std::endl;
script_deinit(m_lua);
// 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(unsigned short port)
{
DSTACK(__FUNCTION_NAME);
infostream<<"Starting server on port "<<port<<"..."<<std::endl;
// Stop thread if already running
m_thread.stop();
// Initialize connection
m_con.SetTimeoutMs(30);
m_con.Serve(port);
// Start thread
m_thread.setRun(true);
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 port "<<port<<"."<<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.setRun(false);
m_emergethread.setRun(false);
m_thread.stop();
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()
{
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)
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);
}
{
// Process connection's timeouts
JMutexAutoLock lock2(m_con_mutex);
ScopeProfiler sp(g_profiler, "Server: connection timeout processing");
m_con.RunTimeouts(dtime);
}
{
// This has to be called so that the client list gets synced
// with the peer list of the connection
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");
//JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
SharedBuffer<u8> data = makePacket_TOCLIENT_TIME_OF_DAY(
m_env->getTimeOfDay(), g_settings->getFloat("time_speed"));
// Send as reliable
m_con.Send(client->peer_id, 0, data, true);
}
}
}
{
JMutexAutoLock lock(m_env_mutex);
// 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);
JMutexAutoLock lock2(m_con_mutex);
ScopeProfiler sp(g_profiler, "Server: handle players");
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
PlayerSAO *playersao = getPlayerSAO(client->peer_id);
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(client->peer_id);
else
SendPlayerHP(client->peer_id);
}
/*
Send player inventories if necessary
*/
if(playersao->m_moved){
SendMovePlayer(client->peer_id);
playersao->m_moved = false;
}
if(playersao->m_inventory_not_sent){
UpdateCrafting(client->peer_id);
SendInventory(client->peer_id);
}
}
}
/* Transform liquids */
m_liquid_transform_timer += dtime;
if(m_liquid_transform_timer >= 1.00)
{
m_liquid_transform_timer -= 1.00;
JMutexAutoLock lock(m_env_mutex);
ScopeProfiler sp(g_profiler, "Server: liquid transform");
core::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
*/
JMutexAutoLock lock2(m_con_mutex);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
if(modified_blocks.size() > 0)
{
// Remove block from sent history
client->SetBlocksNotSent(modified_blocks);
}
}
}
// Periodically print some info
{
float &counter = m_print_info_timer;
counter += dtime;
if(counter >= 30.0)
{
counter = 0.0;
JMutexAutoLock lock2(m_con_mutex);
if(m_clients.size() != 0)
infostream<<"Players:"<<std::endl;
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
//u16 peer_id = i.getNode()->getKey();
RemoteClient *client = i.getNode()->getValue();
Player *player = m_env->getPlayer(client->peer_id);
if(player==NULL)
continue;
infostream<<"* "<<player->getName()<<"\t";
client->PrintInfo(infostream);
}
}
}
//if(g_settings->getBool("enable_experimental"))
{
/*
Check added and deleted active objects
*/
{
//infostream<<"Server: Checking added and deleted active objects"<<std::endl;
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
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");
radius *= MAP_BLOCKSIZE;
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
// If definitions and textures have not been sent, don't
// send objects either
if(!client->definitions_sent)
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);
core::map<u16, bool> removed_objects;
core::map<u16, bool> added_objects;
m_env->getRemovedActiveObjects(pos, radius,
client->m_known_objects, removed_objects);
m_env->getAddedActiveObjects(pos, 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(core::map<u16, bool>::Iterator
i = removed_objects.getIterator();
i.atEnd()==false; i++)
{
// Get object
u16 id = i.getNode()->getKey();
ServerActiveObject* obj = m_env->getActiveObject(id);
// Add to data buffer for sending
writeU16((u8*)buf, i.getNode()->getKey());
data_buffer.append(buf, 2);
// Remove from known objects
client->m_known_objects.remove(i.getNode()->getKey());
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(core::map<u16, bool>::Iterator
i = added_objects.getIterator();
i.atEnd()==false; i++)
{
// Get object
u16 id = i.getNode()->getKey();
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(i.getNode()->getKey(), false);
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_con.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;
}
#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);
JMutexAutoLock conlock(m_con_mutex);
ScopeProfiler sp(g_profiler, "Server: sending object messages");
// Key = object id
// Value = data sent by object
core::map<u16, core::list<ActiveObjectMessage>* > buffered_messages;
// Get active object messages from environment
for(;;)
{
ActiveObjectMessage aom = m_env->getActiveObjectMessage();
if(aom.id == 0)
break;
core::list<ActiveObjectMessage>* message_list = NULL;
core::map<u16, core::list<ActiveObjectMessage>* >::Node *n;
n = buffered_messages.find(aom.id);
if(n == NULL)
{
message_list = new core::list<ActiveObjectMessage>;
buffered_messages.insert(aom.id, message_list);
}
else
{
message_list = n->getValue();
}
message_list->push_back(aom);
}
// Route data to every client
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd()==false; i++)
{
RemoteClient *client = i.getNode()->getValue();
std::string reliable_data;
std::string unreliable_data;
// Go through all objects in message buffer
for(core::map<u16, core::list<ActiveObjectMessage>* >::Iterator
j = buffered_messages.getIterator();
j.atEnd()==false; j++)
{
// If object is not known by client, skip it
u16 id = j.getNode()->getKey();
if(client->m_known_objects.find(id) == NULL)
continue;
// Get message list of object
core::list<ActiveObjectMessage>* list = j.getNode()->getValue();
// Go through every message
for(core::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_con.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_con.Send(client->peer_id, 0, 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;
}*/
}
// Clear buffered_messages
for(core::map<u16, core::list<ActiveObjectMessage>* >::Iterator
i = buffered_messages.getIterator();
i.atEnd()==false; i++)
{
delete i.getNode()->getValue();
}
}
} // enable_experimental
/*
Send queued-for-sending map edit events.
*/
{
// We will be accessing the environment and the connection
JMutexAutoLock lock(m_env_mutex);
JMutexAutoLock conlock(m_con_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.
core::list<u16> far_players;
if(event->type == MEET_ADDNODE)
{
//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);
else
sendAddNode(event->p, event->n, event->already_known_by_peer,
&far_players, 30);
}
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(core::map<v3s16, bool>::Iterator
i = event->modified_blocks.getIterator();
i.atEnd()==false; i++)
{
v3s16 p = i.getNode()->getKey();
setBlockNotSent(p);
}
}
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
core::map<v3s16, MapBlock*> modified_blocks2;
for(core::map<v3s16, bool>::Iterator
i = event->modified_blocks.getIterator();
i.atEnd()==false; i++)
{
v3s16 p = i.getNode()->getKey();
modified_blocks2.insert(p,
m_env->getMap().getBlockNoCreateNoEx(p));
}
// Set blocks not sent
for(core::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_emergethread.trigger();
// 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");
//Ban stuff
if(m_banmanager.isModified())
m_banmanager.save();
// Save changed parts of map
m_env->getMap().save(MOD_STATE_WRITE_NEEDED);
// Save players
m_env->serializePlayers(m_path_world);
// Save environment metadata
m_env->saveMeta(m_path_world);
}
}
}
void Server::Receive()
{
DSTACK(__FUNCTION_NAME);
SharedBuffer<u8> data;
u16 peer_id;
u32 datasize;
try{
{
JMutexAutoLock conlock(m_con_mutex);
datasize = m_con.Receive(peer_id, data);
}
// This has to be called so that the client list gets synced
// with the peer list of the connection
handlePeerChanges();
ProcessData(*data, datasize, peer_id);
}
catch(con::InvalidIncomingDataException &e)
{
infostream<<"Server::Receive(): "
"InvalidIncomingDataException: what()="
<<e.what()<<std::endl;
}
catch(con::PeerNotFoundException &e)
{
//NOTE: This is not needed anymore
// The peer has been disconnected.
// Find the associated player and remove it.
/*JMutexAutoLock envlock(m_env_mutex);
infostream<<"ServerThread: peer_id="<<peer_id
<<" has apparently closed connection. "
<<"Removing player."<<std::endl;
m_env->removePlayer(peer_id);*/
}
}
void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
// Environment is locked first.
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
ScopeProfiler sp(g_profiler, "Server::ProcessData");
try{
Address address = m_con.GetPeerAddress(peer_id);
std::string addr_s = address.serializeString();
// drop player if is ip is banned
if(m_banmanager.isIpBanned(addr_s)){
infostream<<"Server: A banned client tried to connect from "
<<addr_s<<"; banned name was "
<<m_banmanager.getBanName(addr_s)<<std::endl;
// This actually doesn't seem to transfer to the client
SendAccessDenied(m_con, peer_id,
L"Your ip is banned. Banned name was "
+narrow_to_wide(m_banmanager.getBanName(addr_s)));
m_con.DeletePeer(peer_id);
return;
}
}
catch(con::PeerNotFoundException &e)
{
infostream<<"Server::ProcessData(): Cancelling: peer "
<<peer_id<<" not found"<<std::endl;
return;
}
std::string addr_s = m_con.GetPeerAddress(peer_id).serializeString();
u8 peer_ser_ver = getClient(peer_id)->serialization_version;
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
// [3] u8[20] player_name
// [23] u8[28] password <--- can be sent without this, from old versions
if(datasize < 2+1+PLAYERNAME_SIZE)
return;
verbosestream<<"Server: Got TOSERVER_INIT from "
<<peer_id<<std::endl;
// First byte after command is maximum supported
// serialization version
u8 client_max = data[2];
u8 our_max = SER_FMT_VER_HIGHEST;
// Use the highest version supported by both
u8 deployed = core::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;
//peer->serialization_version = deployed;
getClient(peer_id)->pending_serialization_version = deployed;
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 peer "
<<peer_id<<std::endl;
SendAccessDenied(m_con, peer_id, std::wstring(
L"Your client's version is not supported.\n"
L"Server version is ")
+ narrow_to_wide(VERSION_STRING) + L"."
);
return;
}
/*
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: "<<peer_id<<" Protocol version: min: "
<<min_net_proto_version<<", max: "<<max_net_proto_version
<<", chosen: "<<net_proto_version<<std::endl;
getClient(peer_id)->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;
SendAccessDenied(m_con, peer_id, std::wstring(
L"Your client's version is not supported.\n"
L"Server version is ")
+ narrow_to_wide(VERSION_STRING) + 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;
SendAccessDenied(m_con, peer_id, std::wstring(
L"Your client's version is not supported.\n"
L"Server version is ")
+ narrow_to_wide(VERSION_STRING) + 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
*/
// Get player name
char playername[PLAYERNAME_SIZE];
for(u32 i=0; i<PLAYERNAME_SIZE-1; i++)
{
playername[i] = data[3+i];
}
playername[PLAYERNAME_SIZE-1] = 0;
if(playername[0]=='\0')
{
actionstream<<"Server: Player with an empty name "
<<"tried to connect from "<<addr_s<<std::endl;
SendAccessDenied(m_con, 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;
SendAccessDenied(m_con, peer_id,
L"Name contains unallowed characters");
return;
}
infostream<<"Server: New connection: \""<<playername<<"\" from "
<<m_con.GetPeerAddress(peer_id).serializeString()<<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)){
infostream<<"Server: "<<playername
<<" supplied invalid password hash"<<std::endl;
SendAccessDenied(m_con, peer_id, L"Invalid password hash");
return;
}
std::string checkpwd; // Password hash to check against
bool has_auth = scriptapi_get_auth(m_lua, 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) == ""){
SendAccessDenied(m_con, 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;
scriptapi_create_auth(m_lua, playername, initial_password);
}
has_auth = scriptapi_get_auth(m_lua, playername, &checkpwd, NULL);
if(!has_auth){
SendAccessDenied(m_con, peer_id, L"Not allowed to login");
return;
}
if(given_password != checkpwd){
infostream<<"Server: peer_id="<<peer_id
<<": supplied invalid password for "
<<playername<<std::endl;
SendAccessDenied(m_con, peer_id, L"Invalid password");
return;
}
// 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.size() > 1){
infostream<<"Server: Not allowing another client to connect in"
<<" simple singleplayer mode"<<std::endl;
SendAccessDenied(m_con, peer_id,
L"Running in simple singleplayer mode.");
return;
}
// Enforce user limit.
// Don't enforce for users that have some admin right
if(m_clients.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;
SendAccessDenied(m_con, peer_id, L"Too many users.");
return;
}
// Get player
PlayerSAO *playersao = emergePlayer(playername, peer_id);
// If failed, cancel
if(playersao == NULL)
{
errorstream<<"Server: peer_id="<<peer_id
<<": failed to emerge player"<<std::endl;
return;
}
/*
Answer with a TOCLIENT_INIT
*/
{
SharedBuffer<u8> reply(2+1+6+8+4);
writeU16(&reply[0], TOCLIENT_INIT);
writeU8(&reply[2], deployed);
writeV3S16(&reply[2+1], floatToInt(playersao->getPlayer()->getPosition()+v3f(0,BS/2,0), 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_con.Send(peer_id, 0, reply, true);
}
/*
Send complete position information
*/
SendMovePlayer(peer_id);
return;
}
if(command == TOSERVER_INIT2)
{
verbosestream<<"Server: Got TOSERVER_INIT2 from "
<<peer_id<<std::endl;
Player *player = m_env->getPlayer(peer_id);
if(!player){
verbosestream<<"Server: TOSERVER_INIT2: "
<<"Player not found; ignoring."<<std::endl;
return;
}
RemoteClient *client = getClient(peer_id);
client->serialization_version =
getClient(peer_id)->pending_serialization_version;
/*
Send some initialization data
*/
infostream<<"Server: Sending content to "
<<getPlayerName(peer_id)<<std::endl;
// Send item definitions
SendItemDef(m_con, peer_id, m_itemdef);
// Send node definitions
SendNodeDef(m_con, peer_id, m_nodedef, client->net_proto_version);
// Send media announcement
sendMediaAnnouncement(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 detached inventories
sendDetachedInventories(peer_id);
// Show death screen if necessary
if(player->hp == 0)
SendDeathscreen(m_con, peer_id, false, v3f(0,0,0));
// Send time of day
{
SharedBuffer<u8> data = makePacket_TOCLIENT_TIME_OF_DAY(
m_env->getTimeOfDay(), g_settings->getFloat("time_speed"));
m_con.Send(peer_id, 0, data, true);
}
// 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.";
BroadcastChatMessage(message);
}
}
// 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!");
}
/*
Print out action
*/
{
std::ostringstream os(std::ios_base::binary);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
// Get player
Player *player = m_env->getPlayer(client->peer_id);
if(!player)
continue;
// Get name of player
os<<player->getName()<<" ";
}
actionstream<<player->getName()<<" joins game. List of players: "
<<os.str()<<std::endl;
}
return;
}
if(peer_ser_ver == SER_FMT_VER_INVALID)
{
infostream<<"Server::ProcessData(): Cancelling: Peer"
" serialization format invalid or not initialized."
" Skipping incoming command="<<command<<std::endl;
return;
}
Player *player = m_env->getPlayer(peer_id);
if(player == NULL){
infostream<<"Server::ProcessData(): Cancelling: "
"No player for peer_id="<<peer_id
<<std::endl;
return;
}
PlayerSAO *playersao = player->getPlayerSAO();
if(playersao == NULL){
infostream<<"Server::ProcessData(): Cancelling: "
"No player object for peer_id="<<peer_id
<<std::endl;
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);
/*infostream<<"Server::ProcessData(): Moved player "<<peer_id<<" to "
<<"("<<position.X<<","<<position.Y<<","<<position.Z<<")"
<<" pitch="<<pitch<<" yaw="<<yaw<<std::endl;*/
}
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);
}
}
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);
// 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 = scriptapi_on_chat_message(m_lua, 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 = false;
// Whether to send to other players
bool send_to_others = 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 = 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;
send_to_others = true;
} else {
line += L"-!- You don't have permission to shout.";
send_to_sender = true;
}
}
if(line != L"")
{
if(send_to_others)
actionstream<<"CHAT: "<<wide_to_narrow(line)<<std::endl;
/*
Send the message to clients
*/
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
// Get client and check that it is valid
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
// Filter recipient
bool sender_selected = (peer_id == client->peer_id);
if(sender_selected == true && send_to_sender == false)
continue;
if(sender_selected == false && send_to_others == false)
continue;
SendChatMessage(client->peer_id, 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_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;
scriptapi_get_auth(m_lua, 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 = scriptapi_set_password(m_lua, 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_REQUEST_MEDIA) {
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
core::list<MediaRequest> 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(MediaRequest(name));
verbosestream<<"TOSERVER_REQUEST_MEDIA: requested file "
<<name<<std::endl;
}
sendRequestedMedia(peer_id, tosend);
// Now the client should know about everything
// (definitions and files)
getClient(peer_id)->definitions_sent = true;
}
else if(command == TOSERVER_RECEIVED_MEDIA) {
getClient(peer_id)->definitions_sent = true;
}
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);
// 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);
try
{
n = m_env->getMap().getNode(p_under);
}
catch(InvalidPositionException &e)
{
infostream<<"Server: Not punching: Node not found."
<<" Adding block to emerge queue."
<<std::endl;
m_emerge_queue.addBlock(peer_id,
getNodeBlockPos(p_above), BLOCK_EMERGE_FLAG_FROMDISK);
}
if(n.getContent() != CONTENT_IGNORE)
scriptapi_node_on_punch(m_lua, p_under, n, playersao);
// 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)
{
MapNode n(CONTENT_IGNORE);
try
{
n = m_env->getMap().getNode(p_under);
}
catch(InvalidPositionException &e)
{
infostream<<"Server: Not finishing digging: Node not found."
<<" Adding block to emerge queue."
<<std::endl;
m_emerge_queue.addBlock(peer_id,
getNodeBlockPos(p_above), BLOCK_EMERGE_FLAG_FROMDISK);
}
/* 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;
}
// 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;
}
// If time is considerably too short, ignore dig
// Check time only for medium and slow timed digs
if(params.diggable && params.time > 0.3 && nocheat_t < 0.5 * params.time){
infostream<<"Server: NoCheat: "<<player->getName()
<<" completed digging "
<<PP(p_under)<<" in "<<nocheat_t<<"s; expected "
<<params.time<<"s; not digging."<<std::endl;
is_valid_dig = false;
}
}
/* Actually dig node */
if(is_valid_dig && n.getContent() != CONTENT_IGNORE)
scriptapi_node_on_dig(m_lua, p_under, n, playersao);
// 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
RemoteClient *client = getClient(peer_id);
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
client->SetBlockNotSent(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(scriptapi_item_on_place(m_lua,
item, playersao, pointed))
{
// Placement was handled in lua
// Apply returned ItemStack
playersao->setWieldedItem(item);
}
// If item has node placement prediction, always send the above
// node to make sure the client knows what exactly happened
if(item.getDefinition(m_itemdef).node_placement_prediction != ""){
RemoteClient *client = getClient(peer_id);
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
client->SetBlockNotSent(blockpos);
}
} // 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(scriptapi_item_on_use(m_lua,
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);
scriptapi_node_on_receive_fields(m_lua, 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;
}
scriptapi_on_player_receive_fields(m_lua, 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::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:
{
sendDetachedInventoryToAll(loc.name);
}
break;
default:
assert(0);
}
}
core::list<PlayerInfo> Server::getPlayerInfo()
{
DSTACK(__FUNCTION_NAME);
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
core::list<PlayerInfo> list;
core::list<Player*> players = m_env->getPlayers();
core::list<Player*>::Iterator i;
for(i = players.begin();
i != players.end(); i++)
{
PlayerInfo info;
Player *player = *i;
try{
// Copy info from connection to info struct
info.id = player->peer_id;
info.address = m_con.GetPeerAddress(player->peer_id);
info.avg_rtt = m_con.GetPeerAvgRTT(player->peer_id);
}
catch(con::PeerNotFoundException &e)
{
// Set dummy peer info
info.id = 0;
info.address = Address(0,0,0,0,0);
info.avg_rtt = 0.0;
}
snprintf(info.name, PLAYERNAME_SIZE, "%s", player->getName());
info.position = player->getPosition();
list.push_back(info);
}
return list;
}
void Server::peerAdded(con::Peer *peer)
{
DSTACK(__FUNCTION_NAME);
verbosestream<<"Server::peerAdded(): peer->id="
<<peer->id<<std::endl;
PeerChange c;
c.type = 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;
PeerChange c;
c.type = PEER_REMOVED;
c.peer_id = peer->id;
c.timeout = timeout;
m_peer_change_queue.push_back(c);
}
/*
Static send methods
*/
void Server::SendHP(con::Connection &con, 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
con.Send(peer_id, 0, data, true);
}
void Server::SendAccessDenied(con::Connection &con, 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
con.Send(peer_id, 0, data, true);
}
void Server::SendDeathscreen(con::Connection &con, 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
con.Send(peer_id, 0, data, true);
}
void Server::SendItemDef(con::Connection &con, u16 peer_id,
IItemDefManager *itemdef)
{
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);
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
con.Send(peer_id, 0, data, true);
}
void Server::SendNodeDef(con::Connection &con, 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
con.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_con.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());
// Send as reliable
m_con.Send(peer_id, 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);
os<<serializeString(formname);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_con.Send(peer_id, 0, data, true);
}
void Server::BroadcastChatMessage(const std::wstring &message)
{
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
// Get client and check that it is valid
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
SendChatMessage(client->peer_id, message);
}
}
void Server::SendPlayerHP(u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
PlayerSAO *playersao = getPlayerSAO(peer_id);
assert(playersao);
playersao->m_hp_not_sent = false;
SendHP(m_con, peer_id, playersao->getHP());
}
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_con.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;
scriptapi_get_auth(m_lua, 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_con.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(player->inventory_formspec);
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_con.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::set<RemoteClient*> 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;
}
RemoteClient *client = getClient(player->peer_id);
dst_clients.insert(client);
}
else
{
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator(); i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
Player *player = m_env->getPlayer(client->peer_id);
if(!player)
continue;
if(pos_exists){
if(player->getPosition().getDistanceFrom(pos) >
params.max_hear_distance)
continue;
}
dst_clients.insert(client);
}
}
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::set<RemoteClient*>::iterator i = dst_clients.begin();
i != dst_clients.end(); i++)
psound.clients.insert((*i)->peer_id);
// 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::set<RemoteClient*>::iterator i = dst_clients.begin();
i != dst_clients.end(); i++){
// Send as reliable
m_con.Send((*i)->peer_id, 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_con.Send(*i, 0, data, true);
}
// Remove sound reference
m_playing_sounds.erase(i);
}
void Server::sendRemoveNode(v3s16 p, u16 ignore_id,
core::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);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
// Get client and check that it is valid
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
// Don't send if it's the same one
if(client->peer_id == ignore_id)
continue;
if(far_players)
{
// Get player
Player *player = m_env->getPlayer(client->peer_id);
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(client->peer_id);
continue;
}
}
}
// Send as reliable
m_con.Send(client->peer_id, 0, reply, true);
}
}
void Server::sendAddNode(v3s16 p, MapNode n, u16 ignore_id,
core::list<u16> *far_players, float far_d_nodes)
{
float maxd = far_d_nodes*BS;
v3f p_f = intToFloat(p, BS);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
// Get client and check that it is valid
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
// Don't send if it's the same one
if(client->peer_id == ignore_id)
continue;
if(far_players)
{
// Get player
Player *player = m_env->getPlayer(client->peer_id);
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(client->peer_id);
continue;
}
}
}
// Create packet
u32 replysize = 8 + MapNode::serializedLength(client->serialization_version);
SharedBuffer<u8> reply(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);
// Send as reliable
m_con.Send(client->peer_id, 0, reply, true);
}
}
void Server::setBlockNotSent(v3s16 p)
{
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd()==false; i++)
{
RemoteClient *client = i.getNode()->getValue();
client->SetBlockNotSent(p);
}
}
void Server::SendBlockNoLock(u16 peer_id, MapBlock *block, u8 ver)
{
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);
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_con.Send(peer_id, 1, reply, true);
}
void Server::SendBlocks(float dtime)
{
DSTACK(__FUNCTION_NAME);
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
ScopeProfiler sp(g_profiler, "Server: sel and send blocks to clients");
core::array<PrioritySortedBlockTransfer> queue;
s32 total_sending = 0;
{
ScopeProfiler sp(g_profiler, "Server: selecting blocks for sending");
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
// If definitions and textures have not been sent, don't
// send MapBlocks either
if(!client->definitions_sent)
continue;
total_sending += client->SendingCount();
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
client->GetNextBlocks(this, dtime, queue);
}
}
// Sort.
// Lowest priority number comes first.
// Lowest is most important.
queue.sort();
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 = getClient(q.peer_id);
SendBlockNoLock(q.peer_id, block, client->serialization_version);
client->SentBlock(q.pos);
total_sending++;
}
}
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");
}
std::string path_all = "textures";
paths.push_back(path_all + DIR_DELIM + "all");
// 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;
core::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(core::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_con.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 core::list<MediaRequest> &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;
core::array< core::list<SendableMedia> > file_bunches;
file_bunches.push_back(core::list<SendableMedia>());
u32 file_size_bunch_total = 0;
for(core::list<MediaRequest>::ConstIterator i = tosend.begin();
i != tosend.end(); i++)
{
if(m_media.find(i->name) == m_media.end()){
errorstream<<"Server::sendRequestedMedia(): Client asked for "
<<"unknown file \""<<(i->name)<<"\""<<std::endl;
continue;
}
//TODO get path + name
std::string tpath = m_media[(*i).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 \""
<<(*i).name<<"\""<<std::endl;
continue;
}
/*infostream<<"Server::sendRequestedMedia(): Loaded \""
<<tname<<"\""<<std::endl;*/
// Put in list
file_bunches[file_bunches.size()-1].push_back(
SendableMedia((*i).name, tpath, tmp_os.str()));
// Start next bunch if got enough data
if(file_size_bunch_total >= bytes_per_bunch){
file_bunches.push_back(core::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(core::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_con.Send(peer_id, 0, 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());
// Send as reliable
m_con.Send(peer_id, 0, data, true);
}
void Server::sendDetachedInventoryToAll(const std::string &name)
{
DSTACK(__FUNCTION_NAME);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++){
RemoteClient *client = i.getNode()->getValue();
sendDetachedInventory(name, client->peer_id);
}
}
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
scriptapi_on_dieplayer(m_lua, playersao);
SendPlayerHP(peer_id);
SendDeathscreen(m_con, 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 = scriptapi_on_respawnplayer(m_lua, playersao);
if(!repositioned){
v3f pos = findSpawnPos(m_env->getServerMap());
playersao->setPos(pos);
}
}
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;
getCraftingResult(&player->inventory, preview, false, this);
// 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)
{
DSTACK(__FUNCTION_NAME);
//JMutexAutoLock lock(m_con_mutex);
core::map<u16, RemoteClient*>::Node *n;
n = m_clients.find(peer_id);
// A client should exist for all peers
assert(n != NULL);
return n->getValue();
}
std::wstring Server::getStatusString()
{
std::wostringstream os(std::ios_base::binary);
os<<L"# Server: ";
// Version
os<<L"version="<<narrow_to_wide(VERSION_STRING);
// Uptime
os<<L", uptime="<<m_uptime.get();
// Information about clients
core::map<u16, RemoteClient*>::Iterator i;
bool first;
os<<L", clients={";
for(i = m_clients.getIterator(), first = true;
i.atEnd() == false; i++)
{
// Get client and check that it is valid
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
// Get player
Player *player = m_env->getPlayer(client->peer_id);
// 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;
scriptapi_get_auth(m_lua, 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 == ""){
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++){
RemoteClient *client = i.getNode()->getValue();
Player *player = m_env->getPlayer(client->peer_id);
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);
}
// Saves g_settings to configpath given at initialization
void Server::saveConfig()
{
if(m_path_config != "")
g_settings->updateConfigFile(m_path_config.c_str());
}
void Server::notifyPlayer(const char *name, const std::wstring msg)
{
Player *player = m_env->getPlayer(name);
if(!player)
return;
SendChatMessage(player->peer_id, std::wstring(L"Server: -!- ")+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;
}
void Server::notifyPlayers(const std::wstring msg)
{
BroadcastChatMessage(msg);
}
void Server::queueBlockEmerge(v3s16 blockpos, bool allow_generate)
{
u8 flags = 0;
if(!allow_generate)
flags |= BLOCK_EMERGE_FLAG_FROMDISK;
m_emerge_queue.addBlock(PEER_ID_INEXISTENT, blockpos, flags);
}
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;
sendDetachedInventoryToAll(name);
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());
// Disable rollback report sink while reverting
BoolScopeSet rollback_scope_disable(&m_rollback_sink_enabled, false);
// 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;
}
u16 Server::allocateUnknownNodeId(const std::string &name)
{
return m_nodedef->allocateDummy(name);
}
ISoundManager* Server::getSoundManager()
{
return &dummySoundManager;
}
MtEventManager* Server::getEventManager()
{
return m_event;
}
IRollbackReportSink* Server::getRollbackReportSink()
{
if(!m_enable_rollback_recording)
return NULL;
if(!m_rollback_sink_enabled)
return NULL;
return m_rollback;
}
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(core::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.m_mgparams->water_level;
// 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)));
//v2s16 sectorpos = getNodeSectorPos(nodepos2d);
// Get ground height at point (fallbacks to heightmap function)
s16 groundheight = map.findGroundLevel(nodepos2d);
// Don't go underwater
if(groundheight <= water_level)
{
//infostream<<"-> Underwater"<<std::endl;
continue;
}
// Don't go to high places
if(groundheight > water_level + 6)
{
//infostream<<"-> Underwater"<<std::endl;
continue;
}
nodepos = v3s16(nodepos2d.X, groundheight-2, 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);
MapNode n = map.getNodeNoEx(nodepos);
if(n.getContent() == CONTENT_AIR){
air_count++;
if(air_count >= 2){
is_good = true;
nodepos.Y -= 1;
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;
}
/*
Create a new player if it doesn't exist yet
*/
if(player == NULL)
{
newplayer = true;
player = new RemotePlayer(this);
player->updateName(name);
/* Set player position */
infostream<<"Server: Finding spawn place for player \""
<<name<<"\""<<std::endl;
v3f pos = findSpawnPos(m_env->getServerMap());
player->setPosition(pos);
/* 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());
/* Add object to environment */
m_env->addActiveObject(playersao);
/* Run scripts */
if(newplayer)
scriptapi_on_newplayer(m_lua, playersao);
scriptapi_on_joinplayer(m_lua, playersao);
return playersao;
}
void Server::handlePeerChange(PeerChange &c)
{
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
if(c.type == PEER_ADDED)
{
/*
Add
*/
// Error check
core::map<u16, RemoteClient*>::Node *n;
n = m_clients.find(c.peer_id);
// The client shouldn't already exist
assert(n == NULL);
// Create client
RemoteClient *client = new RemoteClient();
client->peer_id = c.peer_id;
m_clients.insert(client->peer_id, client);
} // PEER_ADDED
else if(c.type == PEER_REMOVED)
{
/*
Delete
*/
// Error check
core::map<u16, RemoteClient*>::Node *n;
n = m_clients.find(c.peer_id);
// The client should exist
assert(n != NULL);
/*
Mark objects to be not known by the client
*/
RemoteClient *client = n->getValue();
// Handle objects
for(core::map<u16, bool>::Iterator
i = client->m_known_objects.getIterator();
i.atEnd()==false; i++)
{
// Get object
u16 id = i.getNode()->getKey();
ServerActiveObject* obj = m_env->getActiveObject(id);
if(obj && obj->m_known_by_count > 0)
obj->m_known_by_count--;
}
/*
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(c.peer_id);
if(psound.clients.size() == 0)
m_playing_sounds.erase(i++);
else
i++;
}
Player *player = m_env->getPlayer(c.peer_id);
// Collect information about leaving in chat
std::wstring message;
{
if(player != NULL)
{
std::wstring name = narrow_to_wide(player->getName());
message += L"*** ";
message += name;
message += L" left the game.";
if(c.timeout)
message += L" (timed out)";
}
}
/* Run scripts and remove from environment */
{
if(player != NULL)
{
PlayerSAO *playersao = player->getPlayerSAO();
assert(playersao);
scriptapi_on_leaveplayer(m_lua, playersao);
playersao->disconnected();
}
}
/*
Print out action
*/
{
if(player != NULL)
{
std::ostringstream os(std::ios_base::binary);
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
assert(client->peer_id == i.getNode()->getKey());
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
// Get player
Player *player = m_env->getPlayer(client->peer_id);
if(!player)
continue;
// Get name of player
os<<player->getName()<<" ";
}
actionstream<<player->getName()<<" "
<<(c.timeout?"times out.":"leaves game.")
<<" List of players: "
<<os.str()<<std::endl;
}
}
// Delete client
delete m_clients[c.peer_id];
m_clients.remove(c.peer_id);
// Send player info to all remaining clients
//SendPlayerInfos();
// Send leave chat message to all remaining clients
if(message.length() != 0)
BroadcastChatMessage(message);
} // PEER_REMOVED
else
{
assert(0);
}
}
void Server::handlePeerChanges()
{
while(m_peer_change_queue.size() > 0)
{
PeerChange c = m_peer_change_queue.pop_front();
verbosestream<<"Server: Handling peer change: "
<<"id="<<c.peer_id<<", timeout="<<c.timeout
<<std::endl;
handlePeerChange(c);
}
}
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;
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();
}
}
}
}
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