minetest/src/server.cpp

4559 lines
108 KiB
C++

/*
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 <queue>
#include "clientserver.h"
#include "map.h"
#include "jmutexautolock.h"
#include "main.h"
#include "constants.h"
#include "voxel.h"
#include "materials.h"
#include "config.h"
#include "servercommand.h"
#include "filesys.h"
#include "content_mapnode.h"
#include "content_nodemeta.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 "content_abm.h"
#include "mods.h"
#include "sha1.h"
#include "base64.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;
};
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;
}
}
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");
/*
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(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;
ServerMap &map = ((ServerMap&)m_server->m_env->getMap());
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;
mapgen::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::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 = block->getPos()*MAP_BLOCKSIZE;
v3s16 maxp = minp + v3s16(1,1,1)*(MAP_BLOCKSIZE-1);
scriptapi_environment_on_generated(m_server->m_lua,
minp, maxp);
if(enable_mapgen_debug_info)
infostream<<"EmergeThread: ended up with: "
<<analyze_block(block)<<std::endl;
/*
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, 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);
}
}
}
END_DEBUG_EXCEPTION_HANDLER(errorstream)
log_deregister_thread();
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;
m_nearest_unsent_reset_timer += dtime;
if(m_nothing_to_send_pause_timer >= 0)
{
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");
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 = 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*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->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;
}
/*
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 = 25;
// Make it more responsive when needing to generate stuff
if(surely_not_found_on_disk)
max_emerge = 5;
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;
}
// 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 duration: "<<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;
}
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,
std::string configpath
):
m_env(NULL),
m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, this),
m_authmanager(mapsavedir+DIR_DELIM+"auth.txt"),
m_banmanager(mapsavedir+DIR_DELIM+"ipban.txt"),
m_lua(NULL),
m_itemdef(createItemDefManager()),
m_nodedef(createNodeDefManager()),
m_craftdef(createCraftDefManager()),
m_thread(this),
m_emergethread(this),
m_time_counter(0),
m_time_of_day_send_timer(0),
m_uptime(0),
m_mapsavedir(mapsavedir),
m_configpath(configpath),
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;
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
// Path to builtin.lua
std::string builtinpath = porting::path_data + DIR_DELIM + "builtin.lua";
// Add default global mod search path
m_modspaths.push_front(porting::path_data + DIR_DELIM + "mods");
// Add world mod search path
m_modspaths.push_front(mapsavedir + DIR_DELIM + "worldmods");
// Add user mod search path
m_modspaths.push_front(porting::path_userdata + DIR_DELIM + "usermods");
// Print out mod search paths
infostream<<"Mod search paths:"<<std::endl;
for(core::list<std::string>::Iterator i = m_modspaths.begin();
i != m_modspaths.end(); i++){
std::string modspath = *i;
infostream<<" "<<modspath<<std::endl;
}
// Initialize scripting
infostream<<"Server: Initializing scripting"<<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 stuff from \""<<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);
}
// Load and run "mod" scripts
m_mods = getMods(m_modspaths);
for(core::list<ModSpec>::Iterator i = m_mods.begin();
i != m_mods.end(); i++){
const ModSpec &mod = *i;
infostream<<"Server: Loading mod \""<<mod.name<<"\""<<std::endl;
std::string scriptpath = mod.path + DIR_DELIM + "init.lua";
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
PrepareTextures();
// Apply item aliases in the node definition manager
m_nodedef->updateAliases(m_itemdef);
// Initialize Environment
m_env = new ServerEnvironment(new ServerMap(mapsavedir, this), m_lua,
this, this);
// Give environment reference to scripting api
scriptapi_add_environment(m_lua, m_env);
// Register us to receive map edit events
m_env->getMap().addEventReceiver(this);
// If file exists, load environment metadata
if(fs::PathExists(m_mapsavedir+DIR_DELIM+"env_meta.txt"))
{
infostream<<"Server: Loading environment metadata"<<std::endl;
m_env->loadMeta(m_mapsavedir);
}
// Load players
infostream<<"Server: Loading players"<<std::endl;
m_env->deSerializePlayers(m_mapsavedir);
/*
Add some test ActiveBlockModifiers to environment
*/
add_legacy_abms(m_env, m_nodedef);
}
Server::~Server()
{
infostream<<"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)
{}
}
}
{
JMutexAutoLock envlock(m_env_mutex);
/*
Save players
*/
infostream<<"Server: Saving players"<<std::endl;
m_env->serializePlayers(m_mapsavedir);
/*
Save environment metadata
*/
infostream<<"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();
}
}
// Delete Environment
delete m_env;
delete m_itemdef;
delete m_nodedef;
delete m_craftdef;
// Deinitialize scripting
infostream<<"Server: Deinitializing scripting"<<std::endl;
script_deinit(m_lua);
}
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();
infostream<<"Server: Started 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;
}
}
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;
}
{
ScopeProfiler sp(g_profiler, "Server: sel and send blocks to clients");
// 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 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);
//infostream<<"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);
}
}
}
{
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");
//float player_max_speed = BS * 4.0; // Normal speed
float player_max_speed = BS * 20; // Fast speed
float player_max_speed_up = BS * 20;
player_max_speed *= 2.5; // Tolerance
player_max_speed_up *= 2.5;
for(core::map<u16, RemoteClient*>::Iterator
i = m_clients.getIterator();
i.atEnd() == false; i++)
{
RemoteClient *client = i.getNode()->getValue();
ServerRemotePlayer *player =
static_cast<ServerRemotePlayer*>
(m_env->getPlayer(client->peer_id));
if(player==NULL)
continue;
/*
Check player movements
NOTE: Actually the server should handle player physics like the
client does and compare player's position to what is calculated
on our side. This is required when eg. players fly due to an
explosion.
*/
player->m_last_good_position_age += dtime;
if(player->m_last_good_position_age >= 2.0){
float age = player->m_last_good_position_age;
v3f diff = (player->getPosition() - player->m_last_good_position);
float d_vert = diff.Y;
diff.Y = 0;
float d_horiz = diff.getLength();
/*infostream<<player->getName()<<"'s horizontal speed is "
<<(d_horiz/age)<<std::endl;*/
if(d_horiz <= age * player_max_speed &&
(d_vert < 0 || d_vert < age * player_max_speed_up)){
player->m_last_good_position = player->getPosition();
} else {
actionstream<<"Player "<<player->getName()
<<" moved too fast; resetting position"
<<std::endl;
player->setPosition(player->m_last_good_position);
SendMovePlayer(player);
}
player->m_last_good_position_age = 0;
}
/*
Handle player HPs (die if hp=0)
*/
HandlePlayerHP(player, 0);
/*
Send player inventories and HPs if necessary
*/
if(player->m_inventory_not_sent){
UpdateCrafting(player->peer_id);
SendInventory(player->peer_id);
}
if(player->m_hp_not_sent){
SendPlayerHP(player);
}
/*
Add to environment if is not in respawn screen
*/
if(!player->m_is_in_environment && !player->m_respawn_active){
player->m_removed = false;
player->setId(0);
m_env->addActiveObject(player);
}
}
}
/* 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->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);
infostream<<"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.
*/
{
// 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)
{
//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(got_any_events)
{
infostream<<"Server: MapEditEvents:"<<std::endl;
prof.print(infostream);
}
}
/*
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();
//Bann stuff
if(m_banmanager.isModified())
m_banmanager.save();
// Map
JMutexAutoLock lock(m_env_mutex);
// Save changed parts of map
m_env->getMap().save(MOD_STATE_WRITE_NEEDED);
// Save players
m_env->serializePlayers(m_mapsavedir);
// Save environment metadata
m_env->saveMeta(m_mapsavedir);
}
}
}
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);
try{
Address address = m_con.GetPeerAddress(peer_id);
// drop player if is ip is banned
if(m_banmanager.isIpBanned(address.serializeString())){
SendAccessDenied(m_con, peer_id,
L"Your ip is banned. Banned name was "
+narrow_to_wide(m_banmanager.getBanName(
address.serializeString())));
m_con.DeletePeer(peer_id);
return;
}
}
catch(con::PeerNotFoundException &e)
{
infostream<<"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;
infostream<<"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)
{
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 net_proto_version = 0;
if(datasize >= 2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2)
{
net_proto_version = readU16(&data[2+1+PLAYERNAME_SIZE+PASSWORD_SIZE]);
}
getClient(peer_id)->net_proto_version = net_proto_version;
if(net_proto_version == 0)
{
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;
}
if(g_settings->getBool("strict_protocol_version_checking"))
{
if(net_proto_version != PROTOCOL_VERSION)
{
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(PROTOCOL_VERSION))
+ L", client's PROTOCOL_VERSION is "
+ narrow_to_wide(itos(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')
{
infostream<<"Server: Player has empty name"<<std::endl;
SendAccessDenied(m_con, peer_id,
L"Empty name");
return;
}
if(string_allowed(playername, PLAYERNAME_ALLOWED_CHARS)==false)
{
infostream<<"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+PASSWORD_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;
}
// Add player to auth manager
if(m_authmanager.exists(playername) == false)
{
std::wstring default_password =
narrow_to_wide(g_settings->get("default_password"));
std::string translated_default_password =
translatePassword(playername, default_password);
// If default_password is empty, allow any initial password
if (default_password.length() == 0)
translated_default_password = password;
infostream<<"Server: adding player "<<playername
<<" to auth manager"<<std::endl;
m_authmanager.add(playername);
m_authmanager.setPassword(playername, translated_default_password);
m_authmanager.setPrivs(playername,
stringToPrivs(g_settings->get("default_privs")));
m_authmanager.save();
}
std::string checkpwd = m_authmanager.getPassword(playername);
/*infostream<<"Server: Client gave password '"<<password
<<"', the correct one is '"<<checkpwd<<"'"<<std::endl;*/
if(password != checkpwd)
{
infostream<<"Server: peer_id="<<peer_id
<<": supplied invalid password for "
<<playername<<std::endl;
SendAccessDenied(m_con, peer_id, L"Invalid password");
return;
}
// Enforce user limit.
// Don't enforce for users that have some admin right
if(m_clients.size() >= g_settings->getU16("max_users") &&
(m_authmanager.getPrivs(playername)
& (PRIV_SERVER|PRIV_BAN|PRIV_PRIVS|PRIV_PASSWORD)) == 0 &&
playername != g_settings->get("name"))
{
SendAccessDenied(m_con, peer_id, L"Too many users.");
return;
}
// Get player
ServerRemotePlayer *player = emergePlayer(playername, peer_id);
// If failed, cancel
if(player == NULL)
{
infostream<<"Server: peer_id="<<peer_id
<<": failed to emerge player"<<std::endl;
return;
}
/*
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)
{
infostream<<"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 item definitions
SendItemDef(m_con, peer_id, m_itemdef);
// Send node definitions
SendNodeDef(m_con, peer_id, m_nodedef);
// Send texture announcement
SendTextureAnnouncement(peer_id);
// Send player info to all players
//SendPlayerInfos();
// Send inventory to player
UpdateCrafting(peer_id);
SendInventory(peer_id);
// Send player items to all players
SendPlayerItems();
Player *player = m_env->getPlayer(peer_id);
// Send HP
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);
}
// Warnings about protocol version can be issued here
if(getClient(peer_id)->net_proto_version < PROTOCOL_VERSION)
{
SendChatMessage(peer_id, L"# Server: WARNING: YOUR CLIENT IS OLD AND MAY WORK PROPERLY WITH THIS SERVER");
}
/*
Check HP, respawn if necessary
*/
HandlePlayerHP(player, 0);
/*
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);
ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
if(player == NULL){
infostream<<"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);
/*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)
{
if((getPlayerPrivs(player) & PRIV_INTERACT) == 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;
meta->setText(text);
actionstream<<player->getName()<<" writes \""<<text<<"\" to sign"
<<" at "<<PP(p)<<std::endl;
v3s16 blockpos = getNodeBlockPos(p);
MapBlock *block = m_env->getMap().getBlockNoCreateNoEx(blockpos);
if(block)
{
block->raiseModified(MOD_STATE_WRITE_NEEDED,
"sign node text");
}
setBlockNotSent(blockpos);
}
else if(command == TOSERVER_INVENTORY_ACTION)
{
// Strip command and create a stream
std::string datastring((char*)&data[2], datasize-2);
infostream<<"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;
}
/*
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((getPlayerPrivs(player) & PRIV_INTERACT) == 0
&& (!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;
}
// If player is not an admin, check for ownership of src and dst
if((getPlayerPrivs(player) & PRIV_SERVER) == 0)
{
std::string owner_from = getInventoryOwner(ma->from_inv);
if(owner_from != "" && owner_from != player->getName())
{
infostream<<"WARNING: "<<player->getName()
<<" tried to access an inventory that"
<<" belongs to "<<owner_from<<std::endl;
delete a;
return;
}
std::string owner_to = getInventoryOwner(ma->to_inv);
if(owner_to != "" && owner_to != player->getName())
{
infostream<<"WARNING: "<<player->getName()
<<" tried to access an inventory that"
<<" belongs to "<<owner_to<<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((getPlayerPrivs(player) & PRIV_INTERACT) == 0)
{
delete a;
return;
}
// If player is not an admin, check for ownership
else if((getPlayerPrivs(player) & PRIV_SERVER) == 0)
{
std::string owner_from = getInventoryOwner(da->from_inv);
if(owner_from != "" && owner_from != player->getName())
{
infostream<<"WARNING: "<<player->getName()
<<" tried to access an inventory that"
<<" belongs to "<<owner_from<<std::endl;
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((getPlayerPrivs(player) & PRIV_INTERACT) == 0)
{
infostream<<"Cannot craft: "
<<"No interact privilege"<<std::endl;
delete a;
return;
}
// If player is not an admin, check for ownership of inventory
if((getPlayerPrivs(player) & PRIV_SERVER) == 0)
{
std::string owner_craft = getInventoryOwner(ca->craft_inv);
if(owner_craft != "" && owner_craft != player->getName())
{
infostream<<"WARNING: "<<player->getName()
<<" tried to access an inventory that"
<<" belongs to "<<owner_craft<<std::endl;
delete a;
return;
}
}
}
// Do the action
a->apply(this, srp, 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);
}
// 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;
// Local player gets all privileges regardless of
// what's set on their account.
u64 privs = getPlayerPrivs(player);
// Parse commands
if(message[0] == L'/')
{
size_t strip_size = 1;
if (message[1] == L'#') // support old-style commans
++strip_size;
message = message.substr(strip_size);
WStrfnd f1(message);
f1.next(L" "); // Skip over /#whatever
std::wstring paramstring = f1.next(L"");
ServerCommandContext *ctx = new ServerCommandContext(
str_split(message, L' '),
paramstring,
this,
m_env,
player,
privs);
std::wstring reply(processServerCommand(ctx));
send_to_sender = ctx->flags & SEND_TO_SENDER;
send_to_others = ctx->flags & SEND_TO_OTHERS;
if (ctx->flags & SEND_NO_PREFIX)
line += reply;
else
line += L"Server: " + reply;
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"")
{
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;
HandlePlayerHP(player, damage);
}
else
{
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;
}
infostream<<"Server: Client requests a password change from "
<<"'"<<oldpwd<<"' to '"<<newpwd<<"'"<<std::endl;
std::string playername = player->getName();
if(m_authmanager.exists(playername) == false)
{
infostream<<"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)
{
infostream<<"Server: invalid old password"<<std::endl;
// Wrong old password supplied!!
SendChatMessage(peer_id, L"Invalid old password supplied. Password NOT changed.");
return;
}
actionstream<<player->getName()<<" changes password"<<std::endl;
m_authmanager.setPassword(playername, newpwd);
infostream<<"Server: password change successful for "<<playername
<<std::endl;
SendChatMessage(peer_id, L"Password change successful");
}
else if(command == TOSERVER_PLAYERITEM)
{
if (datasize < 2+2)
return;
u16 item = readU16(&data[2]);
srp->setWieldIndex(item);
SendWieldedItem(srp);
}
else if(command == TOSERVER_RESPAWN)
{
if(player->hp != 0)
return;
srp->m_respawn_active = false;
RespawnPlayer(player);
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_TEXTURES) {
std::string datastring((char*)&data[2], datasize-2);
std::istringstream is(datastring, std::ios_base::binary);
infostream<<"TOSERVER_REQUEST_TEXTURES: "<<std::endl;
core::list<TextureRequest> tosend;
u16 numtextures = readU16(is);
for(int i = 0; i < numtextures; i++) {
std::string name = deSerializeString(is);
tosend.push_back(TextureRequest(name));
infostream<<"TOSERVER_REQUEST_TEXTURES: requested texture " << name <<std::endl;
}
SendTexturesRequested(peer_id, tosend);
// Now the client should know about everything
// (definitions and textures)
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);
infostream<<"TOSERVER_INTERACT: action="<<(int)action<<", item="<<item_i<<", pointed="<<pointed.dump()<<std::endl;
v3f player_pos = srp->m_last_good_position;
// Update wielded item
if(srp->getWieldIndex() != item_i)
{
srp->setWieldIndex(item_i);
SendWieldedItem(srp);
}
// 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)
{
infostream<<"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 * 10; // 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((getPlayerPrivs(player) & PRIV_INTERACT) == 0)
{
infostream<<"Ignoring interaction from player "<<player->getName()
<<" because privileges are "<<getPlayerPrivs(player)
<<std::endl;
return;
}
/*
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, srp);
}
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<<std::endl;
// Do stuff
pointed_object->punch(srp, srp->m_time_from_last_punch);
srp->m_time_from_last_punch = 0;
}
} // action == 0
/*
1: stop digging
*/
else if(action == 1)
{
} // action == 1
/*
2: Digging completed
*/
else if(action == 2)
{
// Only complete 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);
}
if(n.getContent() != CONTENT_IGNORE)
scriptapi_node_on_dig(m_lua, p_under, n, srp);
}
} // action == 2
/*
3: place block or right-click object
*/
else if(action == 3)
{
ItemStack item = srp->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<<std::endl;
// Do stuff
pointed_object->rightClick(srp);
}
else if(scriptapi_item_on_place(m_lua,
item, srp, pointed))
{
// Placement was handled in lua
// Apply returned ItemStack
if(g_settings->getBool("creative_mode") == false)
srp->setWieldedItem(item);
}
} // action == 3
/*
4: use
*/
else if(action == 4)
{
ItemStack item = srp->getWieldedItem();
actionstream<<player->getName()<<" uses "<<item.name
<<", pointing at "<<pointed.dump()<<std::endl;
if(scriptapi_item_on_use(m_lua,
item, srp, pointed))
{
// Apply returned ItemStack
if(g_settings->getBool("creative_mode") == false)
srp->setWieldedItem(item);
}
} // action == 4
/*
Catch invalid actions
*/
else
{
infostream<<"WARNING: Server: Invalid action "
<<action<<std::endl;
}
}
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;
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;
return &player->inventory;
}
break;
case InventoryLocation::NODEMETA:
{
NodeMetadata *meta = m_env->getMap().getNodeMetadata(loc.p);
if(!meta)
return NULL;
return meta->getInventory();
}
break;
default:
assert(0);
}
return NULL;
}
std::string Server::getInventoryOwner(const InventoryLocation &loc)
{
switch(loc.type){
case InventoryLocation::UNDEFINED:
{}
break;
case InventoryLocation::CURRENT_PLAYER:
{}
break;
case InventoryLocation::PLAYER:
{
return loc.name;
}
break;
case InventoryLocation::NODEMETA:
{
NodeMetadata *meta = m_env->getMap().getNodeMetadata(loc.p);
if(!meta)
return "";
return meta->getOwner();
}
break;
default:
assert(0);
}
return "";
}
void Server::setInventoryModified(const InventoryLocation &loc)
{
switch(loc.type){
case InventoryLocation::UNDEFINED:
{}
break;
case InventoryLocation::PLAYER:
{
ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>
(m_env->getPlayer(loc.name.c_str()));
if(!srp)
return;
srp->m_inventory_not_sent = true;
}
break;
case InventoryLocation::NODEMETA:
{
v3s16 blockpos = getNodeBlockPos(loc.p);
NodeMetadata *meta = m_env->getMap().getNodeMetadata(loc.p);
if(meta)
meta->inventoryModified();
MapBlock *block = m_env->getMap().getBlockNoCreateNoEx(blockpos);
if(block)
block->raiseModified(MOD_STATE_WRITE_NEEDED);
setBlockNotSent(blockpos);
}
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);
infostream<<"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);
infostream<<"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();
infostream<<"Server::SendItemDef(): Sending item definitions: 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)
{
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);
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();
infostream<<"Server::SendNodeDef(): Sending node definitions: 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);
ServerRemotePlayer* player =
static_cast<ServerRemotePlayer*>(m_env->getPlayer(peer_id));
assert(player);
player->m_inventory_not_sent = false;
/*
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::SendWieldedItem(const ServerRemotePlayer* srp)
{
DSTACK(__FUNCTION_NAME);
assert(srp);
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_PLAYERITEM);
writeU16(os, 1);
writeU16(os, srp->peer_id);
os<<serializeString(srp->getWieldedItem().getItemString());
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
m_con.SendToAll(0, data, true);
}
void Server::SendPlayerItems()
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
core::list<Player *> players = m_env->getPlayers(true);
writeU16(os, TOCLIENT_PLAYERITEM);
writeU16(os, players.size());
core::list<Player *>::Iterator i;
for(i = players.begin(); i != players.end(); ++i)
{
Player *p = *i;
ServerRemotePlayer *srp =
static_cast<ServerRemotePlayer*>(p);
writeU16(os, p->peer_id);
os<<serializeString(srp->getWieldedItem().getItemString());
}
// Make data buffer
std::string s = os.str();
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
m_con.SendToAll(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);
static_cast<ServerRemotePlayer*>(player)->m_hp_not_sent = false;
}
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();
infostream<<"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
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);
//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());
// 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::PrepareTextures() {
DSTACK(__FUNCTION_NAME);
infostream<<"Server::PrepareTextures(): Calculate sha1 sums of textures"<<std::endl;
for(core::list<ModSpec>::Iterator i = m_mods.begin();
i != m_mods.end(); i++){
const ModSpec &mod = *i;
std::string texturepath = mod.path + DIR_DELIM + "textures";
std::vector<fs::DirListNode> dirlist = fs::GetDirListing(texturepath);
for(u32 j=0; j<dirlist.size(); j++){
if(dirlist[j].dir) // Ignode dirs
continue;
std::string tname = dirlist[j].name;
// if name contains illegal characters, ignore the texture
if(!string_allowed(tname, TEXTURENAME_ALLOWED_CHARS)){
errorstream<<"Server: ignoring illegal texture name: \""
<<tname<<"\""<<std::endl;
continue;
}
std::string tpath = texturepath + DIR_DELIM + tname;
// Read data
std::ifstream fis(tpath.c_str(), std::ios_base::binary);
if(fis.good() == false){
errorstream<<"Server::PrepareTextures(): Could not open \""
<<tname<<"\" 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::PrepareTextures(): Failed to read \""
<<tname<<"\""<<std::endl;
continue;
}
if(tmp_os.str().length() == 0){
errorstream<<"Server::PrepareTextures(): Empty file \""
<<tpath<<"\""<<std::endl;
continue;
}
SHA1 sha1;
sha1.addBytes(tmp_os.str().c_str(), tmp_os.str().length());
unsigned char *digest = sha1.getDigest();
std::string digest_string = base64_encode(digest, 20);
free(digest);
// Put in list
this->m_Textures[tname] = TextureInformation(tpath,digest_string);
infostream<<"Server::PrepareTextures(): added sha1 for "<< tname <<std::endl;
}
}
}
struct SendableTextureAnnouncement
{
std::string name;
std::string sha1_digest;
SendableTextureAnnouncement(const std::string name_="",
const std::string sha1_digest_=""):
name(name_),
sha1_digest(sha1_digest_)
{
}
};
void Server::SendTextureAnnouncement(u16 peer_id){
DSTACK(__FUNCTION_NAME);
infostream<<"Server::SendTextureAnnouncement()"<<std::endl;
core::list<SendableTextureAnnouncement> texture_announcements;
for (std::map<std::string,TextureInformation>::iterator i = m_Textures.begin();i != m_Textures.end(); i++ ) {
// Put in list
texture_announcements.push_back(
SendableTextureAnnouncement(i->first, i->second.sha1_digest));
}
//send announcements
/*
u16 command
u32 number of textures
for each texture {
u16 length of name
string name
u16 length of digest string
string sha1_digest
}
*/
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_ANNOUNCE_TEXTURES);
writeU16(os, texture_announcements.size());
for(core::list<SendableTextureAnnouncement>::Iterator
j = texture_announcements.begin();
j != texture_announcements.end(); j++){
os<<serializeString(j->name);
os<<serializeString(j->sha1_digest);
}
// Make data buffer
std::string s = os.str();
infostream<<"Server::SendTextureAnnouncement(): Send to client"<<std::endl;
SharedBuffer<u8> data((u8*)s.c_str(), s.size());
// Send as reliable
m_con.Send(peer_id, 0, data, true);
}
struct SendableTexture
{
std::string name;
std::string path;
std::string data;
SendableTexture(const std::string &name_="", const std::string path_="",
const std::string &data_=""):
name(name_),
path(path_),
data(data_)
{}
};
void Server::SendTexturesRequested(u16 peer_id,core::list<TextureRequest> tosend) {
DSTACK(__FUNCTION_NAME);
infostream<<"Server::SendTexturesRequested(): Sending textures to client"<<std::endl;
/* Read textures */
// Put 5kB in one bunch (this is not accurate)
u32 bytes_per_bunch = 5000;
core::array< core::list<SendableTexture> > texture_bunches;
texture_bunches.push_back(core::list<SendableTexture>());
u32 texture_size_bunch_total = 0;
for(core::list<TextureRequest>::Iterator i = tosend.begin(); i != tosend.end(); i++) {
if(m_Textures.find(i->name) == m_Textures.end()){
errorstream<<"Server::SendTexturesRequested(): Client asked for "
<<"unknown texture \""<<(i->name)<<"\""<<std::endl;
continue;
}
//TODO get path + name
std::string tpath = m_Textures[(*i).name].path;
// Read data
std::ifstream fis(tpath.c_str(), std::ios_base::binary);
if(fis.good() == false){
errorstream<<"Server::SendTexturesRequested(): 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);
texture_size_bunch_total += len;
if(fis.eof())
break;
if(!fis.good()){
bad = true;
break;
}
}
if(bad){
errorstream<<"Server::SendTexturesRequested(): Failed to read \""
<<(*i).name<<"\""<<std::endl;
continue;
}
/*infostream<<"Server::SendTexturesRequested(): Loaded \""
<<tname<<"\""<<std::endl;*/
// Put in list
texture_bunches[texture_bunches.size()-1].push_back(
SendableTexture((*i).name, tpath, tmp_os.str()));
// Start next bunch if got enough data
if(texture_size_bunch_total >= bytes_per_bunch){
texture_bunches.push_back(core::list<SendableTexture>());
texture_size_bunch_total = 0;
}
}
/* Create and send packets */
u32 num_bunches = texture_bunches.size();
for(u32 i=0; i<num_bunches; i++)
{
/*
u16 command
u16 total number of texture bunches
u16 index of this bunch
u32 number of textures in this bunch
for each texture {
u16 length of name
string name
u32 length of data
data
}
*/
std::ostringstream os(std::ios_base::binary);
writeU16(os, TOCLIENT_TEXTURES);
writeU16(os, num_bunches);
writeU16(os, i);
writeU32(os, texture_bunches[i].size());
for(core::list<SendableTexture>::Iterator
j = texture_bunches[i].begin();
j != texture_bunches[i].end(); j++){
os<<serializeString(j->name);
os<<serializeLongString(j->data);
}
// Make data buffer
std::string s = os.str();
infostream<<"Server::SendTexturesRequested(): bunch "<<i<<"/"<<num_bunches
<<" textures="<<texture_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);
}
}
/*
Something random
*/
void Server::HandlePlayerHP(Player *player, s16 damage)
{
ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
if(srp->m_respawn_active)
return;
if(player->hp > damage)
{
if(damage != 0){
player->hp -= damage;
SendPlayerHP(player);
}
return;
}
infostream<<"Server::HandlePlayerHP(): Player "
<<player->getName()<<" dies"<<std::endl;
player->hp = 0;
// Trigger scripted stuff
scriptapi_on_dieplayer(m_lua, srp);
// Handle players that are not connected
if(player->peer_id == PEER_ID_INEXISTENT){
RespawnPlayer(player);
return;
}
SendPlayerHP(player);
RemoteClient *client = getClient(player->peer_id);
if(client->net_proto_version >= 3)
{
SendDeathscreen(m_con, player->peer_id, false, v3f(0,0,0));
srp->m_removed = true;
srp->m_respawn_active = true;
}
else
{
RespawnPlayer(player);
}
}
void Server::RespawnPlayer(Player *player)
{
player->hp = 20;
ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
bool repositioned = scriptapi_on_respawnplayer(m_lua, srp);
if(!repositioned){
v3f pos = findSpawnPos(m_env->getServerMap());
player->setPosition(pos);
srp->m_last_good_position = pos;
srp->m_last_good_position_age = 0;
}
SendMovePlayer(player);
SendPlayerHP(player);
}
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;
// No crafting in creative mode
if(g_settings->getBool("creative_mode") == false)
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
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<<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();
}
void Server::setPlayerPassword(const std::string &name, const std::wstring &password)
{
// Add player to auth manager
if(m_authmanager.exists(name) == false)
{
infostream<<"Server: adding player "<<name
<<" to auth manager"<<std::endl;
m_authmanager.add(name);
m_authmanager.setPrivs(name,
stringToPrivs(g_settings->get("default_privs")));
}
// Change password and save
m_authmanager.setPassword(name, translatePassword(name, password));
m_authmanager.save();
}
// Saves g_settings to configpath given at initialization
void Server::saveConfig()
{
if(m_configpath != "")
g_settings->updateConfigFile(m_configpath.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);
}
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);
}
// 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;
}
u16 Server::allocateUnknownNodeId(const std::string &name)
{
return m_nodedef->allocateDummy(name);
}
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(core::list<ModSpec>::Iterator i = m_mods.begin();
i != m_mods.end(); i++){
const ModSpec &mod = *i;
if(mod.name == modname)
return &mod;
}
return NULL;
}
v3f findSpawnPos(ServerMap &map)
{
//return v3f(50,50,50)*BS;
v3s16 nodepos;
#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
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 + 4)
{
//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);
}
ServerRemotePlayer *Server::emergePlayer(const char *name, u16 peer_id)
{
/*
Try to get an existing player
*/
ServerRemotePlayer *player =
static_cast<ServerRemotePlayer*>(m_env->getPlayer(name));
if(player != NULL)
{
// If player is already connected, cancel
if(player->peer_id != 0)
{
infostream<<"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"))
{
// Warning: double code below
// Backup actual inventory
player->inventory_backup = new Inventory(m_itemdef);
*(player->inventory_backup) = player->inventory;
// Set creative inventory
player->resetInventory();
scriptapi_get_creative_inventory(m_lua, player);
}
return player;
}
/*
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
*/
{
/* Set player position */
infostream<<"Server: Finding spawn place for player \""
<<name<<"\""<<std::endl;
v3f pos = findSpawnPos(m_env->getServerMap());
player = new ServerRemotePlayer(m_env, pos, peer_id, name);
/* Add player to environment */
m_env->addPlayer(player);
/* Run scripts */
ServerRemotePlayer *srp = static_cast<ServerRemotePlayer*>(player);
scriptapi_on_newplayer(m_lua, srp);
/* Add stuff to inventory */
if(g_settings->getBool("creative_mode"))
{
// Warning: double code above
// Backup actual inventory
player->inventory_backup = new Inventory(m_itemdef);
*(player->inventory_backup) = player->inventory;
// Set creative inventory
player->resetInventory();
scriptapi_get_creative_inventory(m_lua, 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--;
}
ServerRemotePlayer* player =
static_cast<ServerRemotePlayer*>(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 game";
if(c.timeout)
message += L" (timed out)";
}
}
// Remove from environment
if(player != NULL)
player->m_removed = true;
// Set player client disconnected
if(player != NULL)
player->peer_id = 0;
/*
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();
infostream<<"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);
infostream<<DTIME<<std::endl;
infostream<<"========================"<<std::endl;
infostream<<"Running dedicated server"<<std::endl;
infostream<<"========================"<<std::endl;
infostream<<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)
{
infostream<<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))
{
infostream<<"Profiler:"<<std::endl;
g_profiler->print(infostream);
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)
{
infostream<<DTIME<<"Player info:"<<std::endl;
for(i=list.begin(); i!=list.end(); i++)
{
i->PrintLine(&infostream);
}
}
sum_old = sum;
}
}
}