/*
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 General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU 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 "utility.h"
#include <iostream>
#include "clientserver.h"
#include "map.h"
#include "jmutexautolock.h"
#include "main.h"
#include "constants.h"
#include "voxel.h"
#include "materials.h"
#include "mineral.h"
#include "config.h"
#include "servercommand.h"
#include "filesys.h"
#include "content_mapnode.h"
#include "content_craft.h"
#include "content_nodemeta.h"
#include "mapblock.h"
#include "serverobject.h"
#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;
};
void * ServerThread::Thread()
{
ThreadStarted();
DSTACK(__FUNCTION_NAME);
BEGIN_DEBUG_EXCEPTION_HANDLER
while(getRun())
{
try{
//TimeTaker timer("AsyncRunStep() + Receive()");
{
//TimeTaker timer("AsyncRunStep()");
m_server->AsyncRunStep();
}
//dout_server<<"Running m_server->Receive()"<<std::endl;
m_server->Receive();
}
catch(con::NoIncomingDataException &e)
{
}
catch(con::PeerNotFoundException &e)
{
dout_server<<"Server: PeerNotFoundException"<<std::endl;
}
}
END_DEBUG_EXCEPTION_HANDLER
return NULL;
}
void * EmergeThread::Thread()
{
ThreadStarted();
DSTACK(__FUNCTION_NAME);
//bool debug=false;
BEGIN_DEBUG_EXCEPTION_HANDLER
/*
Get block info from queue, emerge them and send them
to clients.
After queue is empty, exit.
*/
while(getRun())
{
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);
/*
Do not generate 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;
//derr_server<<"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 optional = 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)
optional = false;
}
}
/*dstream<<"EmergeThread: p="
<<"("<<p.X<<","<<p.Y<<","<<p.Z<<") "
<<"optional="<<optional<<std::endl;*/
ServerMap &map = ((ServerMap&)m_server->m_env.getMap());
//core::map<v3s16, MapBlock*> changed_blocks;
//core::map<v3s16, MapBlock*> lighting_invalidated_blocks;
MapBlock *block = NULL;
bool got_block = true;
core::map<v3s16, MapBlock*> modified_blocks;
bool only_from_disk = false;
if(optional)
only_from_disk = true;
/*
Fetch block from map or generate a single block
*/
{
JMutexAutoLock envlock(m_server->m_env_mutex);
// Load sector if it isn't loaded
if(map.getSectorNoGenerateNoEx(p2d) == NULL)
//map.loadSectorFull(p2d);
map.loadSectorMeta(p2d);
block = map.getBlockNoCreateNoEx(p);
if(!block || block->isDummy() || !block->isGenerated())
{
// Get, load or create sector
/*ServerMapSector *sector =
(ServerMapSector*)map.createSector(p2d);*/
// Load/generate block
/*block = map.emergeBlock(p, sector, changed_blocks,
lighting_invalidated_blocks);*/
block = map.loadBlock(p);
if(block == NULL && only_from_disk == false)
block = map.generateBlock(p, modified_blocks);
//block = map.generateBlock(p, changed_blocks);
/*block = map.generateBlock(p, block, sector, changed_blocks,
lighting_invalidated_blocks);*/
if(block == NULL)
{
got_block = false;
}
else
{
/*
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);
// Activate objects and stuff
m_server->m_env.activateBlock(block, 3600);
}
}
else
{
/*if(block->getLightingExpired()){
lighting_invalidated_blocks[block->getPos()] = block;
}*/
}
// TODO: Some additional checking and lighting updating,
// see emergeBlock
}
{//envlock
JMutexAutoLock envlock(m_server->m_env_mutex);
if(got_block)
{
/*
Collect a list of blocks that have been modified in
addition to the fetched one.
*/
#if 0
if(lighting_invalidated_blocks.size() > 0)
{
/*dstream<<"lighting "<<lighting_invalidated_blocks.size()
<<" blocks"<<std::endl;*/
// 50-100ms for single block generation
//TimeTaker timer("** EmergeThread updateLighting");
// Update lighting without locking the environment mutex,
// add modified blocks to changed blocks
map.updateLighting(lighting_invalidated_blocks, modified_blocks);
}
// Add all from changed_blocks to modified_blocks
for(core::map<v3s16, MapBlock*>::Iterator i = changed_blocks.getIterator();
i.atEnd() == false; i++)
{
MapBlock *block = i.getNode()->getValue();
modified_blocks.insert(block->getPos(), block);
}
#endif
}
// If we got no block, there should be no invalidated blocks
else
{
//assert(lighting_invalidated_blocks.size() == 0);
}
}//envlock
/*
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);
}
}
}
END_DEBUG_EXCEPTION_HANDLER
return NULL;
}
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;
if(m_nothing_to_send_pause_timer >= 0)
{
// Keep this reset
m_nearest_unsent_reset_timer = 0;
return;
}
// Won't send anything if already sending
if(m_blocks_sending.size() >= g_settings.getU16
("max_simultaneous_block_sends_per_client"))
{
//dstream<<"Not sending any blocks, Queue full."<<std::endl;
return;
}
//TimeTaker timer("RemoteClient::GetNextBlocks");
Player *player = server->m_env.getPlayer(peer_id);
assert(player != NULL);
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 =
playerpos + v3f(0, BS+BS/2, 0);
v3f camera_dir = v3f(0,0,1);
camera_dir.rotateYZBy(player->getPitch());
camera_dir.rotateXZBy(player->getYaw());
/*dstream<<"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;
}
/*dstream<<"m_nearest_unsent_reset_timer="
<<m_nearest_unsent_reset_timer<<std::endl;*/
// This has to be incremented only when the nothing to send pause
// is not active
m_nearest_unsent_reset_timer += dtime;
// Reset periodically to avoid possible bugs or other mishaps
if(m_nearest_unsent_reset_timer > 10.0)
{
m_nearest_unsent_reset_timer = 0;
m_nearest_unsent_d = 0;
/*dstream<<"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;
//dstream<<"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
if(d_max > d_start+1)
d_max = d_start+1;
/*if(d_max_gen > d_start+2)
d_max_gen = d_start+2;*/
//dstream<<"Starting from "<<d_start<<std::endl;
bool sending_something = false;
bool no_blocks_found_for_sending = true;
bool queue_is_full = false;
s16 d;
for(d = d_start; d <= d_max; d++)
{
//dstream<<"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 2/3
if(abs(p.Y - center.Y) > d_max_gen - d_max_gen / 3)
continue;
}
#if 1
/*
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
//dstream<<"d="<<d<<std::endl;
/*
Don't generate or send if not in sight
*/
if(isBlockInSight(p, camera_pos, camera_dir, 10000*BS) == false)
{
continue;
}
/*
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 > 3)
{
if(block->dayNightDiffed() == 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;
}
/*
Record the lowest d from which a block has been
found being not sent and possibly to exist
*/
if(no_blocks_found_for_sending)
{
if(generate == true)
new_nearest_unsent_d = d;
}
no_blocks_found_for_sending = false;
/*
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)
{
//dstream<<"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();
}
// get next one.
continue;
}
/*
Add block to send queue
*/
PrioritySortedBlockTransfer q((float)d, p, peer_id);
dest.push_back(q);
num_blocks_selected += 1;
sending_something = true;
}
}
queue_full_break:
//dstream<<"Stopped at "<<d<<std::endl;
if(no_blocks_found_for_sending)
{
if(queue_is_full == false)
new_nearest_unsent_d = d;
}
if(new_nearest_unsent_d != -1)
m_nearest_unsent_d = new_nearest_unsent_d;
if(sending_something == false)
{
m_nothing_to_send_counter++;
if((s16)m_nothing_to_send_counter >=
g_settings.getS16("max_block_send_distance"))
{
// Pause time in seconds
m_nothing_to_send_pause_timer = 1.0;
/*dstream<<"nothing to send to "
<<server->getPlayerName(peer_id)
<<" (d="<<d<<")"<<std::endl;*/
}
}
else
{
m_nothing_to_send_counter = 0;
}
/*timer_result = timer.stop(true);
if(timer_result != 0)
dstream<<"GetNextBlocks duration: "<<timer_result<<" (!=0)"<<std::endl;*/
}
void RemoteClient::SendObjectData(
Server *server,
float dtime,
core::map<v3s16, bool> &stepped_blocks
)
{
DSTACK(__FUNCTION_NAME);
// Can't send anything without knowing version
if(serialization_version == SER_FMT_VER_INVALID)
{
dstream<<"RemoteClient::SendObjectData(): Not sending, no version."
<<std::endl;
return;
}
/*
Send a TOCLIENT_OBJECTDATA packet.
Sent as unreliable.
u16 command
u16 number of player positions
for each player:
v3s32 position*100
v3s32 speed*100
s32 pitch*100
s32 yaw*100
u16 count of blocks
for each block:
block objects
*/
std::ostringstream os(std::ios_base::binary);
u8 buf[12];
// Write command
writeU16(buf, TOCLIENT_OBJECTDATA);
os.write((char*)buf, 2);
/*
Get and write player data
*/
// Get connected players
core::list<Player*> players = server->m_env.getPlayers(true);
// Write player count
u16 playercount = players.size();
writeU16(buf, playercount);
os.write((char*)buf, 2);
core::list<Player*>::Iterator i;
for(i = players.begin();
i != players.end(); i++)
{
Player *player = *i;
v3f pf = player->getPosition();
v3f sf = player->getSpeed();
v3s32 position_i(pf.X*100, pf.Y*100, pf.Z*100);
v3s32 speed_i (sf.X*100, sf.Y*100, sf.Z*100);
s32 pitch_i (player->getPitch() * 100);
s32 yaw_i (player->getYaw() * 100);
writeU16(buf, player->peer_id);
os.write((char*)buf, 2);
writeV3S32(buf, position_i);
os.write((char*)buf, 12);
writeV3S32(buf, speed_i);
os.write((char*)buf, 12);
writeS32(buf, pitch_i);
os.write((char*)buf, 4);
writeS32(buf, yaw_i);
os.write((char*)buf, 4);
}
/*
Get and write object data
*/
/*
Get nearby blocks.
For making players to be able to build to their nearby
environment (building is not possible on blocks that are not
in memory):
- Set blocks changed
- Add blocks to emerge queue if they are not found
SUGGESTION: These could be ignored from the backside of the player
*/
Player *player = server->m_env.getPlayer(peer_id);
assert(player);
v3f playerpos = player->getPosition();
v3f playerspeed = player->getSpeed();
v3s16 center_nodepos = floatToInt(playerpos, BS);
v3s16 center = getNodeBlockPos(center_nodepos);
s16 d_max = g_settings.getS16("active_object_range");
// Number of blocks whose objects were written to bos
u16 blockcount = 0;
std::ostringstream bos(std::ios_base::binary);
for(s16 d = 0; d <= d_max; d++)
{
core::list<v3s16> list;
getFacePositions(list, d);
core::list<v3s16>::Iterator li;
for(li=list.begin(); li!=list.end(); li++)
{
v3s16 p = *li + center;
/*
Ignore blocks that haven't been sent to the client
*/
{
if(m_blocks_sent.find(p) == NULL)
continue;
}
// Try stepping block and add it to a send queue
try
{
// Get block
MapBlock *block = server->m_env.getMap().getBlockNoCreate(p);
/*
Step block if not in stepped_blocks and add to stepped_blocks.
*/
if(stepped_blocks.find(p) == NULL)
{
block->stepObjects(dtime, true, server->m_env.getDayNightRatio());
stepped_blocks.insert(p, true);
block->setChangedFlag();
}
// Skip block if there are no objects
if(block->getObjectCount() == 0)
continue;
/*
Write objects
*/
// Write blockpos
writeV3S16(buf, p);
bos.write((char*)buf, 6);
// Write objects
//block->serializeObjects(bos, serialization_version); // DEPRECATED
// count=0
writeU16(bos, 0);
blockcount++;
/*
Stop collecting objects if data is already too big
*/
// Sum of player and object data sizes
s32 sum = (s32)os.tellp() + 2 + (s32)bos.tellp();
// break out if data too big
if(sum > MAX_OBJECTDATA_SIZE)
{
goto skip_subsequent;
}
} //try
catch(InvalidPositionException &e)
{
// Not in memory
// Add it to the emerge queue and trigger the thread.
// Fetch the block only if it is on disk.
// Grab and increment counter
/*SharedPtr<JMutexAutoLock> lock
(m_num_blocks_in_emerge_queue.getLock());
m_num_blocks_in_emerge_queue.m_value++;*/
// Add to queue as an anonymous fetch from disk
u8 flags = BLOCK_EMERGE_FLAG_FROMDISK;
server->m_emerge_queue.addBlock(0, p, flags);
server->m_emergethread.trigger();
}
}
}
skip_subsequent:
// Write block count
writeU16(buf, blockcount);
os.write((char*)buf, 2);
// Write block objects
os<<bos.str();
/*
Send data
*/
//dstream<<"Server: Sending object data to "<<peer_id<<std::endl;
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as unreliable
server->m_con.Send(peer_id, 0, data, false);
}
void RemoteClient::GotBlock(v3s16 p)
{
if(m_blocks_sending.find(p) != NULL)
m_blocks_sending.remove(p);
else
{
/*dstream<<"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
dstream<<"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;
}
u32 PIChecksum(core::list<PlayerInfo> &l)
{
core::list<PlayerInfo>::Iterator i;
u32 checksum = 1;
u32 a = 10;
for(i=l.begin(); i!=l.end(); i++)
{
checksum += a * (i->id+1);
checksum ^= 0x435aafcd;
a *= 10;
}
return checksum;
}
/*
Server
*/
Server::Server(
std::string mapsavedir
):
m_env(new ServerMap(mapsavedir), this),
m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, this),
m_authmanager(mapsavedir+"/auth.txt"),
m_thread(this),
m_emergethread(this),
m_time_counter(0),
m_time_of_day_send_timer(0),
m_uptime(0),
m_mapsavedir(mapsavedir),
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;
// Register us to receive map edit events
m_env.getMap().addEventReceiver(this);
// If file exists, load environment metadata
if(fs::PathExists(m_mapsavedir+"/env_meta.txt"))
{
dstream<<"Server: Loading environment metadata"<<std::endl;
m_env.loadMeta(m_mapsavedir);
}
// Load players
dstream<<"Server: Loading players"<<std::endl;
m_env.deSerializePlayers(m_mapsavedir);
}
Server::~Server()
{
dstream<<"Server::~Server()"<<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)
{}
}
}
/*
Save players
*/
dstream<<"Server: Saving players"<<std::endl;
m_env.serializePlayers(m_mapsavedir);
/*
Save environment metadata
*/
dstream<<"Server: Saving environment metadata"<<std::endl;
m_env.saveMeta(m_mapsavedir);
/*
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 player
// NOTE: These are removed by env destructor
{
u16 peer_id = i.getNode()->getKey();
JMutexAutoLock envlock(m_env_mutex);
m_env.removePlayer(peer_id);
}*/
// Delete client
delete i.getNode()->getValue();
}
}
}
void Server::start(unsigned short port)
{
DSTACK(__FUNCTION_NAME);
// 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();
dout_server<<"Server: Started on port "<<port<<std::endl;
}
void Server::stop()
{
DSTACK(__FUNCTION_NAME);
// Stop threads (set run=false first so both start stopping)
m_thread.setRun(false);
m_emergethread.setRun(false);
m_thread.stop();
m_emergethread.stop();
dout_server<<"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;
}
}
void Server::AsyncRunStep()
{
DSTACK(__FUNCTION_NAME);
float dtime;
{
JMutexAutoLock lock1(m_step_dtime_mutex);
dtime = m_step_dtime;
}
{
ScopeProfiler sp(&g_profiler, "Server: selecting and sending "
"blocks to clients");
// Send blocks to clients
SendBlocks(dtime);
}
if(dtime < 0.001)
return;
//dstream<<"Server steps "<<dtime<<std::endl;
//dstream<<"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);
}
/*
Update m_time_of_day and overall game time
*/
{
JMutexAutoLock envlock(m_env_mutex);
m_time_counter += dtime;
f32 speed = g_settings.getFloat("time_speed") * 24000./(24.*3600);
u32 units = (u32)(m_time_counter*speed);
m_time_counter -= (f32)units / speed;
m_env.setTimeOfDay((m_env.getTimeOfDay() + units) % 24000);
//dstream<<"Server: m_time_of_day = "<<m_time_of_day.get()<<std::endl;
/*
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();
//Player *player = m_env.getPlayer(client->peer_id);
SharedBuffer<u8> data = makePacket_TOCLIENT_TIME_OF_DAY(
m_env.getTimeOfDay());
// Send as reliable
m_con.Send(client->peer_id, 0, data, true);
}
}
}
{
// 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
ScopeProfiler sp(&g_profiler, "Server: peer change handling");
handlePeerChanges();
}
{
JMutexAutoLock lock(m_env_mutex);
// Step environment
ScopeProfiler sp(&g_profiler, "Server: environment step");
m_env.step(dtime);
}
const float map_timer_and_unload_dtime = 5.15;
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
*/
/*
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);
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;
std::cout<<player->getName()<<"\t";
client->PrintInfo(std::cout);
}
}
}
//if(g_settings.getBool("enable_experimental"))
{
/*
Check added and deleted active objects
*/
{
//dstream<<"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 objects");
// Radius inside which objects are active
s16 radius = 32;
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==NULL)
{
// This can happen if the client timeouts somehow
/*dstream<<"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)
{
//dstream<<"INFO: 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)
dstream<<"WARNING: "<<__FUNCTION_NAME
<<": NULL object"<<std::endl;
else
type = obj->getType();
// 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()));
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);
dstream<<"INFO: 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)
{
dstream<<"INFO: 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.
*/
{
// 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;
bool got_any_events = false;
// We'll log the amount of each
Profiler prof;
while(m_unsent_map_edit_queue.size() != 0)
{
got_any_events = true;
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)
{
//dstream<<"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)
{
//dstream<<"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)
{
dstream<<"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)
{
prof.add("MEET_OTHER", 1);
dstream<<"WARNING: Server: MEET_OTHER not implemented"
<<std::endl;
}
else
{
prof.add("unknown", 1);
dstream<<"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(got_any_events)
{
dstream<<"Server: MapEditEvents:"<<std::endl;
prof.print(dstream);
}
}
/*
Send object positions
TODO: Get rid of MapBlockObjects
*/
{
float &counter = m_objectdata_timer;
counter += dtime;
if(counter >= g_settings.getFloat("objectdata_interval"))
{
JMutexAutoLock lock1(m_env_mutex);
JMutexAutoLock lock2(m_con_mutex);
ScopeProfiler sp(&g_profiler, "Server: sending mbo positions");
SendObjectData(counter);
counter = 0.0;
}
}
/*
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();
}
}
// 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;
ScopeProfiler sp(&g_profiler, "Server: saving stuff");
// Auth stuff
if(m_authmanager.isModified())
m_authmanager.save();
// Map
JMutexAutoLock lock(m_env_mutex);
/*// Unload unused data (delete from memory)
m_env.getMap().unloadUnusedData(
g_settings.getFloat("server_unload_unused_sectors_timeout"));
*/
/*u32 deleted_count = m_env.getMap().unloadUnusedData(
g_settings.getFloat("server_unload_unused_sectors_timeout"));
*/
// Save only changed parts
m_env.getMap().save(true);
/*if(deleted_count > 0)
{
dout_server<<"Server: Unloaded "<<deleted_count
<<" blocks from memory"<<std::endl;
}*/
// Save players
m_env.serializePlayers(m_mapsavedir);
// Save environment metadata
m_env.saveMeta(m_mapsavedir);
}
}
}
void Server::Receive()
{
DSTACK(__FUNCTION_NAME);
u32 data_maxsize = 10000;
Buffer<u8> data(data_maxsize);
u16 peer_id;
u32 datasize;
try{
{
JMutexAutoLock conlock(m_con_mutex);
datasize = m_con.Receive(peer_id, *data, data_maxsize);
}
// 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)
{
derr_server<<"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);
dout_server<<"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);
con::Peer *peer;
try{
peer = m_con.GetPeer(peer_id);
}
catch(con::PeerNotFoundException &e)
{
derr_server<<DTIME<<"Server::ProcessData(): Cancelling: peer "
<<peer_id<<" not found"<<std::endl;
return;
}
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;
derr_server<<DTIME<<"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)
{
derr_server<<DTIME<<"Server: Cannot negotiate "
"serialization version with peer "
<<peer_id<<std::endl;
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')
{
derr_server<<DTIME<<"Server: Player has empty name"<<std::endl;
SendAccessDenied(m_con, peer_id,
L"Empty name");
return;
}
if(string_allowed(playername, PLAYERNAME_ALLOWED_CHARS)==false)
{
derr_server<<DTIME<<"Server: Player has invalid name"<<std::endl;
SendAccessDenied(m_con, peer_id,
L"Name contains unallowed characters");
return;
}
// Get password
char password[PASSWORD_SIZE];
if(datasize == 2+1+PLAYERNAME_SIZE)
{
// old version - assume blank password
password[0] = 0;
}
else
{
for(u32 i=0; i<PASSWORD_SIZE-1; i++)
{
password[i] = data[23+i];
}
password[PASSWORD_SIZE-1] = 0;
}
std::string checkpwd;
if(m_authmanager.exists(playername))
{
checkpwd = m_authmanager.getPassword(playername);
}
else
{
checkpwd = g_settings.get("default_password");
}
if(password != checkpwd && checkpwd != "")
{
derr_server<<DTIME<<"Server: peer_id="<<peer_id
<<": supplied invalid password for "
<<playername<<std::endl;
SendAccessDenied(m_con, peer_id, L"Invalid password");
return;
}
// Add player to auth manager
if(m_authmanager.exists(playername) == false)
{
derr_server<<DTIME<<"Server: adding player "<<playername
<<" to auth manager"<<std::endl;
m_authmanager.add(playername);
m_authmanager.setPassword(playername, checkpwd);
m_authmanager.setPrivs(playername,
stringToPrivs(g_settings.get("default_privs")));
m_authmanager.save();
}
// Get player
Player *player = emergePlayer(playername, password, peer_id);
/*{
// DEBUG: Test serialization
std::ostringstream test_os;
player->serialize(test_os);
dstream<<"Player serialization test: \""<<test_os.str()
<<"\""<<std::endl;
std::istringstream test_is(test_os.str());
player->deSerialize(test_is);
}*/
// If failed, cancel
if(player == NULL)
{
derr_server<<DTIME<<"Server: peer_id="<<peer_id
<<": failed to emerge player"<<std::endl;
return;
}
/*
// If a client is already connected to the player, cancel
if(player->peer_id != 0)
{
derr_server<<DTIME<<"Server: peer_id="<<peer_id
<<" tried to connect to "
"an already connected player (peer_id="
<<player->peer_id<<")"<<std::endl;
return;
}
// Set client of player
player->peer_id = peer_id;
*/
// Check if player doesn't exist
if(player == NULL)
throw con::InvalidIncomingDataException
("Server::ProcessData(): INIT: Player doesn't exist");
/*// update name if it was supplied
if(datasize >= 20+3)
{
data[20+3-1] = 0;
player->updateName((const char*)&data[3]);
}*/
/*
Answer with a TOCLIENT_INIT
*/
{
SharedBuffer<u8> reply(2+1+6+8);
writeU16(&reply[0], TOCLIENT_INIT);
writeU8(&reply[2], deployed);
writeV3S16(&reply[2+1], floatToInt(player->getPosition()+v3f(0,BS/2,0), BS));
writeU64(&reply[2+1+6], m_env.getServerMap().getSeed());
// Send as reliable
m_con.Send(peer_id, 0, reply, true);
}
/*
Send complete position information
*/
SendMovePlayer(player);
return;
}
if(command == TOSERVER_INIT2)
{
derr_server<<DTIME<<"Server: Got TOSERVER_INIT2 from "
<<peer->id<<std::endl;
getClient(peer->id)->serialization_version
= getClient(peer->id)->pending_serialization_version;
/*
Send some initialization data
*/
// Send player info to all players
SendPlayerInfos();
// Send inventory to player
UpdateCrafting(peer->id);
SendInventory(peer->id);
// Send HP
{
Player *player = m_env.getPlayer(peer_id);
SendPlayerHP(player);
}
// Send time of day
{
SharedBuffer<u8> data = makePacket_TOCLIENT_TIME_OF_DAY(
m_env.getTimeOfDay());
m_con.Send(peer->id, 0, data, true);
}
// 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 game";
BroadcastChatMessage(message);
}
return;
}
if(peer_ser_ver == SER_FMT_VER_INVALID)
{
derr_server<<DTIME<<"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){
derr_server<<"Server::ProcessData(): Cancelling: "
"No player 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;
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);
/*dout_server<<"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]);
/*dstream<<"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]);
/*dstream<<"Server: DELETEDBLOCKS ("
<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
RemoteClient *client = getClient(peer_id);
client->SetBlockNotSent(p);
}
}
else if(command == TOSERVER_CLICK_OBJECT)
{
if(datasize < 13)
return;
if((getPlayerPrivs(player) & PRIV_BUILD) == 0)
return;
/*
[0] u16 command
[2] u8 button (0=left, 1=right)
[3] v3s16 block
[9] s16 id
[11] u16 item
*/
u8 button = readU8(&data[2]);
v3s16 p;
p.X = readS16(&data[3]);
p.Y = readS16(&data[5]);
p.Z = readS16(&data[7]);
s16 id = readS16(&data[9]);
//u16 item_i = readU16(&data[11]);
MapBlock *block = NULL;
try
{
block = m_env.getMap().getBlockNoCreate(p);
}
catch(InvalidPositionException &e)
{
derr_server<<"CLICK_OBJECT block not found"<<std::endl;
return;
}
MapBlockObject *obj = block->getObject(id);
if(obj == NULL)
{
derr_server<<"CLICK_OBJECT object not found"<<std::endl;
return;
}
//TODO: Check that object is reasonably close
// Left click
if(button == 0)
{
InventoryList *ilist = player->inventory.getList("main");
if(g_settings.getBool("creative_mode") == false && ilist != NULL)
{
// Skip if inventory has no free space
if(ilist->getUsedSlots() == ilist->getSize())
{
dout_server<<"Player inventory has no free space"<<std::endl;
return;
}
/*
Create the inventory item
*/
InventoryItem *item = NULL;
// If it is an item-object, take the item from it
if(obj->getTypeId() == MAPBLOCKOBJECT_TYPE_ITEM)
{
item = ((ItemObject*)obj)->createInventoryItem();
}
// Else create an item of the object
else
{
item = new MapBlockObjectItem
(obj->getInventoryString());
}
// Add to inventory and send inventory
ilist->addItem(item);
UpdateCrafting(player->peer_id);
SendInventory(player->peer_id);
}
// Remove from block
block->removeObject(id);
}
}
else if(command == TOSERVER_CLICK_ACTIVEOBJECT)
{
if(datasize < 7)
return;
if((getPlayerPrivs(player) & PRIV_BUILD) == 0)
return;
/*
length: 7
[0] u16 command
[2] u8 button (0=left, 1=right)
[3] u16 id
[5] u16 item
*/
u8 button = readU8(&data[2]);
u16 id = readS16(&data[3]);
u16 item_i = readU16(&data[11]);
ServerActiveObject *obj = m_env.getActiveObject(id);
if(obj == NULL)
{
derr_server<<"Server: CLICK_ACTIVEOBJECT: object not found"
<<std::endl;
return;
}
//TODO: Check that object is reasonably close
// Left click, pick object up (usually)
if(button == 0)
{
InventoryList *ilist = player->inventory.getList("main");
if(g_settings.getBool("creative_mode") == false && ilist != NULL)
{
// Skip if inventory has no free space
if(ilist->getUsedSlots() == ilist->getSize())
{
dout_server<<"Player inventory has no free space"<<std::endl;
return;
}
// Skip if object has been removed
if(obj->m_removed)
return;
/*
Create the inventory item
*/
InventoryItem *item = obj->createPickedUpItem();
if(item)
{
// Add to inventory and send inventory
ilist->addItem(item);
UpdateCrafting(player->peer_id);
SendInventory(player->peer_id);
// Remove object from environment
obj->m_removed = true;
}
else
{
/*
Item cannot be picked up. Punch it instead.
*/
ToolItem *titem = NULL;
std::string toolname = "";
InventoryList *mlist = player->inventory.getList("main");
if(mlist != NULL)
{
InventoryItem *item = mlist->getItem(item_i);
if(item && (std::string)item->getName() == "ToolItem")
{
titem = (ToolItem*)item;
toolname = titem->getToolName();
}
}
v3f playerpos = player->getPosition();
v3f objpos = obj->getBasePosition();
v3f dir = (objpos - playerpos).normalize();
u16 wear = obj->punch(toolname, dir);
if(titem)
{
bool weared_out = titem->addWear(wear);
if(weared_out)
mlist->deleteItem(item_i);
SendInventory(player->peer_id);
}
}
}
}
}
else if(command == TOSERVER_GROUND_ACTION)
{
if(datasize < 17)
return;
/*
length: 17
[0] u16 command
[2] u8 action
[3] v3s16 nodepos_undersurface
[9] v3s16 nodepos_abovesurface
[15] u16 item
actions:
0: start digging
1: place block
2: stop digging (all parameters ignored)
3: digging completed
*/
u8 action = readU8(&data[2]);
v3s16 p_under;
p_under.X = readS16(&data[3]);
p_under.Y = readS16(&data[5]);
p_under.Z = readS16(&data[7]);
v3s16 p_over;
p_over.X = readS16(&data[9]);
p_over.Y = readS16(&data[11]);
p_over.Z = readS16(&data[13]);
u16 item_i = readU16(&data[15]);
//TODO: Check that target is reasonably close
/*
0: start digging
*/
if(action == 0)
{
/*
NOTE: This can be used in the future to check if
somebody is cheating, by checking the timing.
*/
} // action == 0
/*
2: stop digging
*/
else if(action == 2)
{
#if 0
RemoteClient *client = getClient(peer->id);
JMutexAutoLock digmutex(client->m_dig_mutex);
client->m_dig_tool_item = -1;
#endif
}
/*
3: Digging completed
*/
else if(action == 3)
{
// Mandatory parameter; actually used for nothing
core::map<v3s16, MapBlock*> modified_blocks;
u8 material = CONTENT_IGNORE;
u8 mineral = MINERAL_NONE;
bool cannot_remove_node = false;
try
{
MapNode n = m_env.getMap().getNode(p_under);
// Get mineral
mineral = n.getMineral();
// Get material at position
material = n.d;
// If not yet cancelled
if(cannot_remove_node == false)
{
// If it's not diggable, do nothing
if(content_diggable(material) == false)
{
derr_server<<"Server: Not finishing digging: "
<<"Node not diggable"
<<std::endl;
cannot_remove_node = true;
}
}
// If not yet cancelled
if(cannot_remove_node == false)
{
// Get node metadata
NodeMetadata *meta = m_env.getMap().getNodeMetadata(p_under);
if(meta && meta->nodeRemovalDisabled() == true)
{
derr_server<<"Server: Not finishing digging: "
<<"Node metadata disables removal"
<<std::endl;
cannot_remove_node = true;
}
}
}
catch(InvalidPositionException &e)
{
derr_server<<"Server: Not finishing digging: Node not found."
<<" Adding block to emerge queue."
<<std::endl;
m_emerge_queue.addBlock(peer_id,
getNodeBlockPos(p_over), BLOCK_EMERGE_FLAG_FROMDISK);
cannot_remove_node = true;
}
// Make sure the player is allowed to do it
if((getPlayerPrivs(player) & PRIV_BUILD) == 0)
{
dstream<<"Player "<<player->getName()<<" cannot remove node"
<<" because privileges are "<<getPlayerPrivs(player)
<<std::endl;
cannot_remove_node = true;
}
/*
If node can't be removed, set block to be re-sent to
client and quit.
*/
if(cannot_remove_node)
{
derr_server<<"Server: Not finishing digging."<<std::endl;
// Client probably has wrong data.
// Set block not sent, so that client will get
// a valid one.
dstream<<"Client "<<peer_id<<" tried to dig "
<<"node; but node cannot be removed."
<<" setting MapBlock not sent."<<std::endl;
RemoteClient *client = getClient(peer_id);
v3s16 blockpos = getNodeBlockPos(p_under);
client->SetBlockNotSent(blockpos);
return;
}
/*
Send the removal to all close-by players.
- If other player is close, send REMOVENODE
- Otherwise set blocks not sent
*/
core::list<u16> far_players;
sendRemoveNode(p_under, peer_id, &far_players, 30);
/*
Update and send inventory
*/
if(g_settings.getBool("creative_mode") == false)
{
/*
Wear out tool
*/
InventoryList *mlist = player->inventory.getList("main");
if(mlist != NULL)
{
InventoryItem *item = mlist->getItem(item_i);
if(item && (std::string)item->getName() == "ToolItem")
{
ToolItem *titem = (ToolItem*)item;
std::string toolname = titem->getToolName();
// Get digging properties for material and tool
DiggingProperties prop =
getDiggingProperties(material, toolname);
if(prop.diggable == false)
{
derr_server<<"Server: WARNING: Player digged"
<<" with impossible material + tool"
<<" combination"<<std::endl;
}
bool weared_out = titem->addWear(prop.wear);
if(weared_out)
{
mlist->deleteItem(item_i);
}
}
}
/*
Add dug item to inventory
*/
InventoryItem *item = NULL;
if(mineral != MINERAL_NONE)
item = getDiggedMineralItem(mineral);
// If not mineral
if(item == NULL)
{
std::string &dug_s = content_features(material).dug_item;
if(dug_s != "")
{
std::istringstream is(dug_s, std::ios::binary);
item = InventoryItem::deSerialize(is);
}
}
if(item != NULL)
{
// Add a item to inventory
player->inventory.addItem("main", item);
// Send inventory
UpdateCrafting(player->peer_id);
SendInventory(player->peer_id);
}
}
/*
Remove the node
(this takes some time so it is done after the quick stuff)
*/
{
MapEditEventIgnorer ign(&m_ignore_map_edit_events);
m_env.getMap().removeNodeAndUpdate(p_under, modified_blocks);
}
/*
Set blocks not sent to far players
*/
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_blocks);
}
}
/*
1: place block
*/
else if(action == 1)
{
InventoryList *ilist = player->inventory.getList("main");
if(ilist == NULL)
return;
// Get item
InventoryItem *item = ilist->getItem(item_i);
// If there is no item, it is not possible to add it anywhere
if(item == NULL)
return;
/*
Handle material items
*/
if(std::string("MaterialItem") == item->getName())
{
try{
// Don't add a node if this is not a free space
MapNode n2 = m_env.getMap().getNode(p_over);
bool no_enough_privs =
((getPlayerPrivs(player) & PRIV_BUILD)==0);
if(no_enough_privs)
dstream<<"Player "<<player->getName()<<" cannot add node"
<<" because privileges are "<<getPlayerPrivs(player)
<<std::endl;
if(content_buildable_to(n2.d) == false
|| no_enough_privs)
{
// Client probably has wrong data.
// Set block not sent, so that client will get
// a valid one.
dstream<<"Client "<<peer_id<<" tried to place"
<<" node in invalid position; setting"
<<" MapBlock not sent."<<std::endl;
RemoteClient *client = getClient(peer_id);
v3s16 blockpos = getNodeBlockPos(p_over);
client->SetBlockNotSent(blockpos);
return;
}
}
catch(InvalidPositionException &e)
{
derr_server<<"Server: Ignoring ADDNODE: Node not found"
<<" Adding block to emerge queue."
<<std::endl;
m_emerge_queue.addBlock(peer_id,
getNodeBlockPos(p_over), BLOCK_EMERGE_FLAG_FROMDISK);
return;
}
// Reset build time counter
getClient(peer->id)->m_time_from_building = 0.0;
// Create node data
MaterialItem *mitem = (MaterialItem*)item;
MapNode n;
n.d = mitem->getMaterial();
// Calculate direction for wall mounted stuff
if(content_features(n.d).wall_mounted)
n.dir = packDir(p_under - p_over);
// Calculate the direction for furnaces and chests and stuff
if(content_features(n.d).param_type == CPT_FACEDIR_SIMPLE)
{
v3f playerpos = player->getPosition();
v3f blockpos = intToFloat(p_over, BS) - playerpos;
blockpos = blockpos.normalize();
n.param1 = 0;
if (fabs(blockpos.X) > fabs(blockpos.Z)) {
if (blockpos.X < 0)
n.param1 = 3;
else
n.param1 = 1;
} else {
if (blockpos.Z < 0)
n.param1 = 2;
else
n.param1 = 0;
}
}
/*
Send to all close-by players
*/
core::list<u16> far_players;
sendAddNode(p_over, n, 0, &far_players, 30);
/*
Handle inventory
*/
InventoryList *ilist = player->inventory.getList("main");
if(g_settings.getBool("creative_mode") == false && ilist)
{
// Remove from inventory and send inventory
if(mitem->getCount() == 1)
ilist->deleteItem(item_i);
else
mitem->remove(1);
// Send inventory
UpdateCrafting(peer_id);
SendInventory(peer_id);
}
/*
Add node.
This takes some time so it is done after the quick stuff
*/
core::map<v3s16, MapBlock*> modified_blocks;
{
MapEditEventIgnorer ign(&m_ignore_map_edit_events);
m_env.getMap().addNodeAndUpdate(p_over, n, modified_blocks);
}
/*
Set blocks not sent to far players
*/
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_blocks);
}
/*
Calculate special events
*/
/*if(n.d == CONTENT_MESE)
{
u32 count = 0;
for(s16 z=-1; z<=1; z++)
for(s16 y=-1; y<=1; y++)
for(s16 x=-1; x<=1; x++)
{
}
}*/
}
/*
Place other item (not a block)
*/
else
{
v3s16 blockpos = getNodeBlockPos(p_over);
/*
Check that the block is loaded so that the item
can properly be added to the static list too
*/
MapBlock *block = m_env.getMap().getBlockNoCreateNoEx(blockpos);
if(block==NULL)
{
derr_server<<"Error while placing object: "
"block not found"<<std::endl;
return;
}
dout_server<<"Placing a miscellaneous item on map"
<<std::endl;
// Calculate a position for it
v3f pos = intToFloat(p_over, BS);
//pos.Y -= BS*0.45;
pos.Y -= BS*0.25; // let it drop a bit
// Randomize a bit
pos.X += BS*0.2*(float)myrand_range(-1000,1000)/1000.0;
pos.Z += BS*0.2*(float)myrand_range(-1000,1000)/1000.0;
/*
Create the object
*/
ServerActiveObject *obj = item->createSAO(&m_env, 0, pos);
if(obj == NULL)
{
derr_server<<"WARNING: item resulted in NULL object, "
<<"not placing onto map"
<<std::endl;
}
else
{
// Add the object to the environment
m_env.addActiveObject(obj);
dout_server<<"Placed object"<<std::endl;
if(g_settings.getBool("creative_mode") == false)
{
// Delete the right amount of items from the slot
u16 dropcount = item->getDropCount();
// Delete item if all gone
if(item->getCount() <= dropcount)
{
if(item->getCount() < dropcount)
dstream<<"WARNING: Server: dropped more items"
<<" than the slot contains"<<std::endl;
InventoryList *ilist = player->inventory.getList("main");
if(ilist)
// Remove from inventory and send inventory
ilist->deleteItem(item_i);
}
// Else decrement it
else
item->remove(dropcount);
// Send inventory
UpdateCrafting(peer_id);
SendInventory(peer_id);
}
}
}
} // action == 1
/*
Catch invalid actions
*/
else
{
derr_server<<"WARNING: Server: Invalid action "
<<action<<std::endl;
}
}
#if 0
else if(command == TOSERVER_RELEASE)
{
if(datasize < 3)
return;
/*
length: 3
[0] u16 command
[2] u8 button
*/
dstream<<"TOSERVER_RELEASE ignored"<<std::endl;
}
#endif
else if(command == TOSERVER_SIGNTEXT)
{
if((getPlayerPrivs(player) & PRIV_BUILD) == 0)
return;
/*
u16 command
v3s16 blockpos
s16 id
u16 textlen
textdata
*/
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
u8 buf[6];
// Read stuff
is.read((char*)buf, 6);
v3s16 blockpos = readV3S16(buf);
is.read((char*)buf, 2);
s16 id = readS16(buf);
is.read((char*)buf, 2);
u16 textlen = readU16(buf);
std::string text;
for(u16 i=0; i<textlen; i++)
{
is.read((char*)buf, 1);
text += (char)buf[0];
}
MapBlock *block = NULL;
try
{
block = m_env.getMap().getBlockNoCreate(blockpos);
}
catch(InvalidPositionException &e)
{
derr_server<<"Error while setting sign text: "
"block not found"<<std::endl;
return;
}
MapBlockObject *obj = block->getObject(id);
if(obj == NULL)
{
derr_server<<"Error while setting sign text: "
"object not found"<<std::endl;
return;
}
if(obj->getTypeId() != MAPBLOCKOBJECT_TYPE_SIGN)
{
derr_server<<"Error while setting sign text: "
"object is not a sign"<<std::endl;
return;
}
((SignObject*)obj)->setText(text);
obj->getBlock()->setChangedFlag();
}
else if(command == TOSERVER_SIGNNODETEXT)
{
if((getPlayerPrivs(player) & PRIV_BUILD) == 0)
return;
/*
u16 command
v3s16 p
u16 textlen
textdata
*/
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
u8 buf[6];
// Read stuff
is.read((char*)buf, 6);
v3s16 p = readV3S16(buf);
is.read((char*)buf, 2);
u16 textlen = readU16(buf);
std::string text;
for(u16 i=0; i<textlen; i++)
{
is.read((char*)buf, 1);
text += (char)buf[0];
}
NodeMetadata *meta = m_env.getMap().getNodeMetadata(p);
if(!meta)
return;
if(meta->typeId() != CONTENT_SIGN_WALL)
return;
SignNodeMetadata *signmeta = (SignNodeMetadata*)meta;
signmeta->setText(text);
v3s16 blockpos = getNodeBlockPos(p);
MapBlock *block = m_env.getMap().getBlockNoCreateNoEx(blockpos);
if(block)
{
block->setChangedFlag();
}
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd()==false; i++)
{
RemoteClient *client = i.getNode()->getValue();
client->SetBlockNotSent(blockpos);
}
}
else if(command == TOSERVER_INVENTORY_ACTION)
{
/*// Ignore inventory changes if in creative mode
if(g_settings.getBool("creative_mode") == true)
{
dstream<<"TOSERVER_INVENTORY_ACTION: ignoring in creative mode"
<<std::endl;
return;
}*/
// Strip command and create a stream
std::string datastring((char*)&data[2], datasize-2);
dstream<<"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)
{
// Create context
InventoryContext c;
c.current_player = player;
/*
Handle craftresult specially if not in creative mode
*/
bool disable_action = false;
if(a->getType() == IACTION_MOVE
&& g_settings.getBool("creative_mode") == false)
{
IMoveAction *ma = (IMoveAction*)a;
if(ma->to_inv == "current_player" &&
ma->from_inv == "current_player")
{
InventoryList *rlist = player->inventory.getList("craftresult");
assert(rlist);
InventoryList *clist = player->inventory.getList("craft");
assert(clist);
InventoryList *mlist = player->inventory.getList("main");
assert(mlist);
/*
Craftresult is no longer preview if something
is moved into it
*/
if(ma->to_list == "craftresult"
&& ma->from_list != "craftresult")
{
// If it currently is a preview, remove
// its contents
if(player->craftresult_is_preview)
{
rlist->deleteItem(0);
}
player->craftresult_is_preview = false;
}
/*
Crafting takes place if this condition is true.
*/
if(player->craftresult_is_preview &&
ma->from_list == "craftresult")
{
player->craftresult_is_preview = false;
clist->decrementMaterials(1);
}
/*
If the craftresult is placed on itself, move it to
main inventory instead of doing the action
*/
if(ma->to_list == "craftresult"
&& ma->from_list == "craftresult")
{
disable_action = true;
InventoryItem *item1 = rlist->changeItem(0, NULL);
mlist->addItem(item1);
}
}
}
if(disable_action == false)
{
// Feed action to player inventory
a->apply(&c, this);
// Eat the action
delete a;
}
else
{
// Send inventory
UpdateCrafting(player->peer_id);
SendInventory(player->peer_id);
}
}
else
{
dstream<<"TOSERVER_INVENTORY_ACTION: "
<<"InventoryAction::deSerialize() returned NULL"
<<std::endl;
}
}
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);
}
// Get player name of this client
std::wstring name = narrow_to_wide(player->getName());
// 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;
// Local player gets all privileges regardless of
// what's set on their account.
u64 privs = getPlayerPrivs(player);
// Parse commands
std::wstring commandprefix = L"/#";
if(message.substr(0, commandprefix.size()) == commandprefix)
{
line += L"Server: ";
message = message.substr(commandprefix.size());
ServerCommandContext *ctx = new ServerCommandContext(
str_split(message, L' '),
this,
&m_env,
player,
privs);
line += processServerCommand(ctx);
send_to_sender = ctx->flags & 1;
send_to_others = ctx->flags & 2;
delete ctx;
}
else
{
if(privs & PRIV_SHOUT)
{
line += L"<";
line += name;
line += L"> ";
line += message;
send_to_others = true;
}
else
{
line += L"Server: You are not allowed to shout";
send_to_sender = true;
}
}
if(line != L"")
{
dstream<<"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)
{
if(g_settings.getBool("enable_damage"))
{
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
u8 damage = readU8(is);
if(player->hp > damage)
{
player->hp -= damage;
}
else
{
player->hp = 0;
dstream<<"TODO: Server: TOSERVER_HP_DECREMENT: Player dies"
<<std::endl;
v3f pos = findSpawnPos(m_env.getServerMap());
player->setPosition(pos);
player->hp = 20;
SendMovePlayer(player);
SendPlayerHP(player);
//TODO: Throw items around
}
}
SendPlayerHP(player);
}
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;
}
std::string playername = player->getName();
if(m_authmanager.exists(playername) == false)
{
dstream<<"Server: playername not found in authmanager"<<std::endl;
// Wrong old password supplied!!
SendChatMessage(peer_id, L"playername not found in authmanager");
return;
}
std::string checkpwd = m_authmanager.getPassword(playername);
if(oldpwd != checkpwd)
{
dstream<<"Server: invalid old password"<<std::endl;
// Wrong old password supplied!!
SendChatMessage(peer_id, L"Invalid old password supplied. Password NOT changed.");
return;
}
m_authmanager.setPassword(playername, newpwd);
dstream<<"Server: password change successful for "<<playername
<<std::endl;
SendChatMessage(peer_id, L"Password change successful");
}
else
{
derr_server<<"WARNING: Server::ProcessData(): Ignoring "
"unknown command "<<command<<std::endl;
}
} //try
catch(SendFailedException &e)
{
derr_server<<"Server::ProcessData(): SendFailedException: "
<<"what="<<e.what()
<<std::endl;
}
}
void Server::onMapEditEvent(MapEditEvent *event)
{
//dstream<<"Server::onMapEditEvent()"<<std::endl;
if(m_ignore_map_edit_events)
return;
MapEditEvent *e = event->clone();
m_unsent_map_edit_queue.push_back(e);
}
Inventory* Server::getInventory(InventoryContext *c, std::string id)
{
if(id == "current_player")
{
assert(c->current_player);
return &(c->current_player->inventory);
}
Strfnd fn(id);
std::string id0 = fn.next(":");
if(id0 == "nodemeta")
{
v3s16 p;
p.X = stoi(fn.next(","));
p.Y = stoi(fn.next(","));
p.Z = stoi(fn.next(","));
NodeMetadata *meta = m_env.getMap().getNodeMetadata(p);
if(meta)
return meta->getInventory();
dstream<<"nodemeta at ("<<p.X<<","<<p.Y<<","<<p.Z<<"): "
<<"no metadata found"<<std::endl;
return NULL;
}
dstream<<__FUNCTION_NAME<<": unknown id "<<id<<std::endl;
return NULL;
}
void Server::inventoryModified(InventoryContext *c, std::string id)
{
if(id == "current_player")
{
assert(c->current_player);
// Send inventory
UpdateCrafting(c->current_player->peer_id);
SendInventory(c->current_player->peer_id);
return;
}
Strfnd fn(id);
std::string id0 = fn.next(":");
if(id0 == "nodemeta")
{
v3s16 p;
p.X = stoi(fn.next(","));
p.Y = stoi(fn.next(","));
p.Z = stoi(fn.next(","));
v3s16 blockpos = getNodeBlockPos(p);
NodeMetadata *meta = m_env.getMap().getNodeMetadata(p);
if(meta)
meta->inventoryModified();
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd()==false; i++)
{
RemoteClient *client = i.getNode()->getValue();
client->SetBlockNotSent(blockpos);
}
return;
}
dstream<<__FUNCTION_NAME<<": unknown id "<<id<<std::endl;
}
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{
con::Peer *peer = m_con.GetPeer(player->peer_id);
// Copy info from peer to info struct
info.id = peer->id;
info.address = peer->address;
info.avg_rtt = peer->avg_rtt;
}
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);
dout_server<<"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);
dout_server<<"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);
}
/*
Non-static send methods
*/
void Server::SendObjectData(float dtime)
{
DSTACK(__FUNCTION_NAME);
core::map<v3s16, bool> stepped_blocks;
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();
assert(client->peer_id == peer_id);
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
client->SendObjectData(this, dtime, stepped_blocks);
}
}
void Server::SendPlayerInfos()
{
DSTACK(__FUNCTION_NAME);
//JMutexAutoLock envlock(m_env_mutex);
// Get connected players
core::list<Player*> players = m_env.getPlayers(true);
u32 player_count = players.getSize();
u32 datasize = 2+(2+PLAYERNAME_SIZE)*player_count;
SharedBuffer<u8> data(datasize);
writeU16(&data[0], TOCLIENT_PLAYERINFO);
u32 start = 2;
core::list<Player*>::Iterator i;
for(i = players.begin();
i != players.end(); i++)
{
Player *player = *i;
/*dstream<<"Server sending player info for player with "
"peer_id="<<player->peer_id<<std::endl;*/
writeU16(&data[start], player->peer_id);
memset((char*)&data[start+2], 0, PLAYERNAME_SIZE);
snprintf((char*)&data[start+2], PLAYERNAME_SIZE, "%s", player->getName());
start += 2+PLAYERNAME_SIZE;
}
//JMutexAutoLock conlock(m_con_mutex);
// Send as reliable
m_con.SendToAll(0, data, true);
}
void Server::SendInventory(u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
Player* player = m_env.getPlayer(peer_id);
assert(player);
/*
Serialize it
*/
std::ostringstream os;
//os.imbue(std::locale("C"));
player->inventory.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::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(Player *player)
{
SendHP(m_con, player->peer_id, player->hp);
}
void Server::SendMovePlayer(Player *player)
{
DSTACK(__FUNCTION_NAME);
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();
dstream<<"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(player->peer_id, 0, data, true);
}
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
dstream<<"Server: Sending block ("<<p.X<<","<<p.Y<<","<<p.Z<<"): ";
if(completely_air)
dstream<<"[completely air] ";
dstream<<std::endl;
#endif
/*
Create a packet with the block in the right format
*/
std::ostringstream os(std::ios_base::binary);
block->serialize(os, ver);
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());
/*dstream<<"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);
//TimeTaker timer("Server::SendBlocks");
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());
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++;
}
}
/*
Something random
*/
void Server::UpdateCrafting(u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
Player* player = m_env.getPlayer(peer_id);
assert(player);
/*
Calculate crafting stuff
*/
if(g_settings.getBool("creative_mode") == false)
{
InventoryList *clist = player->inventory.getList("craft");
InventoryList *rlist = player->inventory.getList("craftresult");
if(rlist->getUsedSlots() == 0)
player->craftresult_is_preview = true;
if(rlist && player->craftresult_is_preview)
{
rlist->clearItems();
}
if(clist && rlist && player->craftresult_is_preview)
{
InventoryItem *items[9];
for(u16 i=0; i<9; i++)
{
items[i] = clist->getItem(i);
}
// Get result of crafting grid
InventoryItem *result = craft_get_result(items);
if(result)
rlist->addItem(result);
}
} // if creative_mode == false
}
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
os<<L", 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;
// 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
os<<name<<L",";
}
os<<L"}";
if(((ServerMap*)(&m_env.getMap()))->isSavingEnabled() == false)
os<<" WARNING: Map saving is disabled."<<std::endl;
return os.str();
}
v3f findSpawnPos(ServerMap &map)
{
//return v3f(50,50,50)*BS;
v2s16 nodepos;
s16 groundheight = 0;
#if 0
nodepos = v2s16(0,0);
groundheight = 20;
#endif
#if 1
// 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
nodepos = v2s16(-range + (myrand()%(range*2)),
-range + (myrand()%(range*2)));
v2s16 sectorpos = getNodeSectorPos(nodepos);
// Get sector (NOTE: Don't get because it's slow)
//m_env.getMap().emergeSector(sectorpos);
// Get ground height at point (fallbacks to heightmap function)
groundheight = map.findGroundLevel(nodepos);
// Don't go underwater
if(groundheight < WATER_LEVEL)
{
//dstream<<"-> Underwater"<<std::endl;
continue;
}
// Don't go to high places
if(groundheight > WATER_LEVEL + 4)
{
//dstream<<"-> Underwater"<<std::endl;
continue;
}
// Found a good place
//dstream<<"Searched through "<<i<<" places."<<std::endl;
break;
}
#endif
// If no suitable place was not found, go above water at least.
if(groundheight < WATER_LEVEL)
groundheight = WATER_LEVEL;
return intToFloat(v3s16(
nodepos.X,
groundheight + 3,
nodepos.Y
), BS);
}
Player *Server::emergePlayer(const char *name, const char *password, u16 peer_id)
{
/*
Try to get an existing player
*/
Player *player = m_env.getPlayer(name);
if(player != NULL)
{
// If player is already connected, cancel
if(player->peer_id != 0)
{
dstream<<"emergePlayer(): Player already connected"<<std::endl;
return NULL;
}
// Got one.
player->peer_id = peer_id;
// Reset inventory to creative if in creative mode
if(g_settings.getBool("creative_mode"))
{
craft_set_creative_inventory(player);
}
return player;
}
/*
If player with the wanted peer_id already exists, cancel.
*/
if(m_env.getPlayer(peer_id) != NULL)
{
dstream<<"emergePlayer(): Player with wrong name but same"
" peer_id already exists"<<std::endl;
return NULL;
}
/*
Create a new player
*/
{
player = new ServerRemotePlayer();
//player->peer_id = c.peer_id;
//player->peer_id = PEER_ID_INEXISTENT;
player->peer_id = peer_id;
player->updateName(name);
m_authmanager.add(name);
m_authmanager.setPassword(name, password);
m_authmanager.setPrivs(name,
stringToPrivs(g_settings.get("default_privs")));
/*
Set player position
*/
dstream<<"Server: Finding spawn place for player \""
<<player->getName()<<"\""<<std::endl;
v3f pos = findSpawnPos(m_env.getServerMap());
player->setPosition(pos);
/*
Add player to environment
*/
m_env.addPlayer(player);
/*
Add stuff to inventory
*/
if(g_settings.getBool("creative_mode"))
{
craft_set_creative_inventory(player);
}
else if(g_settings.getBool("give_initial_stuff"))
{
craft_give_initial_stuff(player);
}
return player;
} // create new player
}
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--;
}
// Collect information about leaving in chat
std::wstring message;
{
std::wstring name = L"unknown";
Player *player = m_env.getPlayer(c.peer_id);
if(player != NULL)
name = narrow_to_wide(player->getName());
message += L"*** ";
message += name;
message += L" left game";
if(c.timeout)
message += L" (timed out)";
}
/*// Delete player
{
m_env.removePlayer(c.peer_id);
}*/
// Set player client disconnected
{
Player *player = m_env.getPlayer(c.peer_id);
if(player != NULL)
player->peer_id = 0;
}
// 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
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();
dout_server<<"Server: Handling peer change: "
<<"id="<<c.peer_id<<", timeout="<<c.timeout
<<std::endl;
handlePeerChange(c);
}
}
u64 Server::getPlayerPrivs(Player *player)
{
if(player==NULL)
return 0;
std::string playername = player->getName();
// Local player gets all privileges regardless of
// what's set on their account.
if(g_settings.get("name") == playername)
{
return PRIV_ALL;
}
else
{
return getPlayerAuthPrivs(playername);
}
}
void dedicated_server_loop(Server &server, bool &kill)
{
DSTACK(__FUNCTION_NAME);
dstream<<DTIME<<std::endl;
dstream<<"========================"<<std::endl;
dstream<<"Running dedicated server"<<std::endl;
dstream<<"========================"<<std::endl;
dstream<<std::endl;
IntervalLimiter m_profiler_interval;
for(;;)
{
// This is kind of a hack but can be done like this
// because server.step() is very light
{
ScopeProfiler sp(&g_profiler, "dedicated server sleep");
sleep_ms(30);
}
server.step(0.030);
if(server.getShutdownRequested() || kill)
{
dstream<<DTIME<<" dedicated_server_loop(): 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(0.030, profiler_print_interval))
{
dstream<<"Profiler:"<<std::endl;
g_profiler.print(dstream);
g_profiler.clear();
}
}
/*
Player info
*/
static int counter = 0;
counter--;
if(counter <= 0)
{
counter = 10;
core::list<PlayerInfo> list = server.getPlayerInfo();
core::list<PlayerInfo>::Iterator i;
static u32 sum_old = 0;
u32 sum = PIChecksum(list);
if(sum != sum_old)
{
dstream<<DTIME<<"Player info:"<<std::endl;
for(i=list.begin(); i!=list.end(); i++)
{
i->PrintLine(&dstream);
}
}
sum_old = sum;
}
}
}