I;1Q S=8u(f"~P|^0H~6!ʦo*dL=>yڛK,6n0.G8o=>qJ9Vjd a copy of the GNU Lesser General Public License along+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "serveropcodes.h"
+
+const static ToServerCommandHandler null_command_handler = { "TOSERVER_NULL", TOSERVER_STATE_ALL, &Server::handleCommand_Null };
+
+const ToServerCommandHandler toServerCommandTable[TOSERVER_NUM_MSG_TYPES] =
+{
+ null_command_handler, // 0x00
+ null_command_handler, // 0x01
+ null_command_handler, // 0x02
+ null_command_handler, // 0x03
+ null_command_handler, // 0x04
+ null_command_handler, // 0x05
+ null_command_handler, // 0x06
+ null_command_handler, // 0x07
+ null_command_handler, // 0x08
+ null_command_handler, // 0x09
+ null_command_handler, // 0x0a
+ null_command_handler, // 0x0b
+ null_command_handler, // 0x0c
+ null_command_handler, // 0x0d
+ null_command_handler, // 0x0e
+ null_command_handler, // 0x0f
+ { "TOSERVER_INIT", TOSERVER_STATE_NOT_CONNECTED, &Server::handleCommand_Init }, // 0x10
+ { "TOSERVER_INIT2", TOSERVER_STATE_NOT_CONNECTED, &Server::handleCommand_Init2 }, // 0x11
+ null_command_handler, // 0x12
+ null_command_handler, // 0x13
+ null_command_handler, // 0x14
+ null_command_handler, // 0x15
+ null_command_handler, // 0x16
+ null_command_handler, // 0x17
+ null_command_handler, // 0x18
+ null_command_handler, // 0x19
+ null_command_handler, // 0x1a
+ null_command_handler, // 0x1b
+ null_command_handler, // 0x1c
+ null_command_handler, // 0x1d
+ null_command_handler, // 0x1e
+ null_command_handler, // 0x1f
+ null_command_handler, // 0x20
+ null_command_handler, // 0x21
+ null_command_handler, // 0x22
+ { "TOSERVER_PLAYERPOS", TOSERVER_STATE_INGAME, &Server::handleCommand_PlayerPos }, // 0x23
+ { "TOSERVER_GOTBLOCKS", TOSERVER_STATE_STARTUP, &Server::handleCommand_GotBlocks }, // 0x24
+ { "TOSERVER_DELETEDBLOCKS", TOSERVER_STATE_INGAME, &Server::handleCommand_DeletedBlocks }, // 0x25
+ null_command_handler, // 0x26
+ { "TOSERVER_CLICK_OBJECT", TOSERVER_STATE_INGAME, &Server::handleCommand_Deprecated }, // 0x27
+ { "TOSERVER_GROUND_ACTION", TOSERVER_STATE_INGAME, &Server::handleCommand_Deprecated }, // 0x28
+ { "TOSERVER_RELEASE", TOSERVER_STATE_INGAME, &Server::handleCommand_Deprecated }, // 0x29
+ null_command_handler, // 0x2a
+ null_command_handler, // 0x2b
+ null_command_handler, // 0x2c
+ null_command_handler, // 0x2d
+ null_command_handler, // 0x2e
+ null_command_handler, // 0x2f
+ { "TOSERVER_SIGNTEXT", TOSERVER_STATE_INGAME, &Server::handleCommand_Deprecated }, // 0x30
+ { "TOSERVER_INVENTORY_ACTION", TOSERVER_STATE_INGAME, &Server::handleCommand_InventoryAction }, // 0x31
+ { "TOSERVER_CHAT_MESSAGE", TOSERVER_STATE_INGAME, &Server::handleCommand_ChatMessage }, // 0x32
+ { "TOSERVER_SIGNNODETEXT", TOSERVER_STATE_INGAME, &Server::handleCommand_Deprecated }, // 0x33
+ { "TOSERVER_CLICK_ACTIVEOBJECT", TOSERVER_STATE_INGAME, &Server::handleCommand_Deprecated }, // 0x34
+ { "TOSERVER_DAMAGE", TOSERVER_STATE_INGAME, &Server::handleCommand_Damage }, // 0x35
+ { "TOSERVER_PASSWORD", TOSERVER_STATE_INGAME, &Server::handleCommand_Password }, // 0x36
+ { "TOSERVER_PLAYERITEM", TOSERVER_STATE_INGAME, &Server::handleCommand_PlayerItem }, // 0x37
+ { "TOSERVER_RESPAWN", TOSERVER_STATE_INGAME, &Server::handleCommand_Respawn }, // 0x38
+ { "TOSERVER_INTERACT", TOSERVER_STATE_INGAME, &Server::handleCommand_Interact }, // 0x39
+ { "TOSERVER_REMOVED_SOUNDS", TOSERVER_STATE_INGAME, &Server::handleCommand_RemovedSounds }, // 0x3a
+ { "TOSERVER_NODEMETA_FIELDS", TOSERVER_STATE_INGAME, &Server::handleCommand_NodeMetaFields }, // 0x3b
+ { "TOSERVER_INVENTORY_FIELDS", TOSERVER_STATE_INGAME, &Server::handleCommand_InventoryFields }, // 0x3c
+ null_command_handler, // 0x3d
+ null_command_handler, // 0x3e
+ null_command_handler, // 0x3f
+ { "TOSERVER_REQUEST_MEDIA", TOSERVER_STATE_STARTUP, &Server::handleCommand_RequestMedia }, // 0x40
+ { "TOSERVER_RECEIVED_MEDIA", TOSERVER_STATE_STARTUP, &Server::handleCommand_ReceivedMedia }, // 0x41
+ { "TOSERVER_BREATH", TOSERVER_STATE_INGAME, &Server::handleCommand_Breath }, // 0x42
+ { "TOSERVER_CLIENT_READY", TOSERVER_STATE_STARTUP, &Server::handleCommand_ClientReady }, // 0x43
+};
diff --git a/src/network/serveropcodes.h b/src/network/serveropcodes.h
new file mode 100644
index 000000000..77f39e09a
--- /dev/null
+++ b/
src/network/serveropcodes.h@@ -0,0 +1,43 @@
+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef SERVEROPCODES_HEADER
+#define SERVEROPCODES_HEADER
+
+#include "server.h"
+#include "networkprotocol.h"
+#include "toserverpacket.h"
+
+enum ToServerConnectionState {
+ TOSERVER_STATE_NOT_CONNECTED,
+ TOSERVER_STATE_STARTUP,
+ TOSERVER_STATE_INGAME,
+ TOSERVER_STATE_ALL,
+};
+struct ToServerCommandHandler
+{
+ const std::string name;
+ ToServerConnectionState state;
+ void (Server::*handler)(ToServerPacket* pkt);
+};
+
+extern const ToServerCommandHandler toServerCommandTable[TOSERVER_NUM_MSG_TYPES];
+
+#endif
diff --git a/src/network/toclientpacket.cpp b/src/network/toclientpacket.cpp
new file mode 100644
index 000000000..b51da48cf
--- /dev/null
+++ b/
src/network/toclientpacket.cpp@@ -0,0 +1,28 @@
+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "toclientpacket.h"
+#include "util/serialize.h"
+
+ToClientPacket::ToClientPacket(u8 *data, u32 datasize, u16 peer_id):
+NetworkPacket(data, datasize, peer_id)
+{
+ m_command = (ToClientCommand)readU16(&data[0]);
+}
diff --git a/src/network/toclientpacket.h b/src/network/toclientpacket.h
new file mode 100644
index 000000000..b926514fb
--- /dev/null
+++ b/
src/network/toclientpacket.h@@ -0,0 +1,38 @@
+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef TOCLIENTPACKET_HEADER
+#define TOCLIENTPACKET_HEADER
+
+#include "util/numeric.h"
+#include "networkprotocol.h"
+#include "networkpacket.h"
+
+class ToClientPacket: public NetworkPacket
+{
+public:
+ ToClientPacket(u8 *data, u32 datasize, u16 peer_id);
+ ToClientCommand getCommand() { return m_command; }
+
+private:
+ ToClientCommand m_command;
+};
+
+#endif
diff --git a/src/network/toserverpacket.cpp b/src/network/toserverpacket.cpp
new file mode 100644
index 000000000..7b4968679
--- /dev/null
+++ b/
src/network/toserverpacket.cpp@@ -0,0 +1,28 @@
+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "toserverpacket.h"
+#include "util/serialize.h"
+
+ToServerPacket::ToServerPacket(u8 *data, u32 datasize, u16 peer_id):
+NetworkPacket(data, datasize, peer_id)
+{
+ m_command = (ToServerCommand)readU16(&data[0]);
+}
diff --git a/src/network/toserverpacket.h b/src/network/toserverpacket.h
new file mode 100644
index 000000000..eb8470b07
--- /dev/null
+++ b/
src/network/toserverpacket.h@@ -0,0 +1,38 @@
+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef TOSERVERPACKET_HEADER
+#define TOSERVERPACKET_HEADER
+
+#include "util/numeric.h"
+#include "networkprotocol.h"
+#include "networkpacket.h"
+
+class ToServerPacket: public NetworkPacket
+{
+public:
+ ToServerPacket(u8 *data, u32 datasize, u16 peer_id);
+ ToServerCommand getCommand() { return m_command; }
+
+private:
+ ToServerCommand m_command;
+};
+
+#endif
@@ -21,7 +21,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include <iostream>
#include <queue>
#include <algorithm>
-#include "clientserver.h"
+#include "network/networkprotocol.h"
+#include "network/serveropcodes.h"
#include "ban.h"
#include "environment.h"
#include "map.h"
@@ -1149,12 +1150,11 @@ void Server::Receive()
SharedBuffer<u8> data;
u16 peer_id;
u32 datasize;
- try{
+ try {
datasize = m_con.Receive(peer_id,data);
ProcessData(*data, datasize, peer_id);
}
- catch(con::InvalidIncomingDataException &e)
- {
+ catch(con::InvalidIncomingDataException &e) {
infostream<<"Server::Receive(): "
"InvalidIncomingDataException: what()="
<<e.what()<<std::endl;
@@ -1164,14 +1164,12 @@ void Server::Receive()
"SerializationError: what()="
<<e.what()<<std::endl;
}
- catch(ClientStateError &e)
- {
+ catch(ClientStateError &e) {
errorstream << "ProcessData: peer=" << peer_id << e.what() << std::endl;
DenyAccess(peer_id, L"Your client sent something server didn't expect."
L"Try reconnecting or updating your client");
}
- catch(con::PeerNotFoundException &e)
- {
+ catch(con::PeerNotFoundException &e) {
// Do nothing
}
}
@@ -1197,9 +1195,8 @@ PlayerSAO* Server::StageTwoClientInit(u16 peer_id)
static_cast<RemotePlayer*>(m_env->getPlayer(playername.c_str()));
// If failed, cancel
- if((playersao == NULL) || (player == NULL))
- {
- if(player && player->peer_id != 0){
+ if((playersao == NULL) || (player == NULL)) {
+ if(player && player->peer_id != 0) {
errorstream<<"Server: "<<playername<<": Failed to emerge player"
<<" (player allocated to an another client)"<<std::endl;
DenyAccess(peer_id, L"Another client is connected with this "
@@ -1240,8 +1237,7 @@ PlayerSAO* Server::StageTwoClientInit(u16 peer_id)
SendDeathscreen(peer_id, false, v3f(0,0,0));
// Note things in chat if not in simple singleplayer mode
- if(!m_simple_singleplayer_mode)
- {
+ if(!m_simple_singleplayer_mode) {
// Send information about server to player in chat
SendChatMessage(peer_id, getStatusString());
@@ -1271,8 +1267,7 @@ PlayerSAO* Server::StageTwoClientInit(u16 peer_id)
actionstream<<player->getName() <<" joins game. List of players: ";
for (std::vector<std::string>::iterator i = names.begin();
- i != names.end(); i++)
- {
+ i != names.end(); i++) {
actionstream << *i << " ";
}
@@ -1281,1467 +1276,1605 @@ PlayerSAO* Server::StageTwoClientInit(u16 peer_id)
return playersao;
}
-void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
+void Server::handleCommand_Deprecated(ToServerPacket* pkt)
{
- DSTACK(__FUNCTION_NAME);
- // Environment is locked first.
- JMutexAutoLock envlock(m_env_mutex);
+ infostream << "Server: " << toServerCommandTable[pkt->getCommand()].name
+ << " not supported anymore" << std::endl;
+}
- ScopeProfiler sp(g_profiler, "Server::ProcessData");
+void Server::handleCommand_Init(ToServerPacket* pkt)
+{
+ // [0] u16 TOSERVER_INIT
+ // [2] u8 SER_FMT_VER_HIGHEST_READ
+ // [3] u8[20] player_name
+ // [23] u8[28] password <--- can be sent without this, from old versions
+
+ if(pkt->getSize() < 1+PLAYERNAME_SIZE)
+ return;
+
+ RemoteClient* client = getClient(pkt->getPeerId(), CS_Created);
std::string addr_s;
- try{
- Address address = getPeerAddress(peer_id);
+ try {
+ Address address = getPeerAddress(pkt->getPeerId());
addr_s = address.serializeString();
-
- // drop player if is ip is banned
- if(m_banmanager->isIpBanned(addr_s)){
- std::string ban_name = m_banmanager->getBanName(addr_s);
- infostream<<"Server: A banned client tried to connect from "
- <<addr_s<<"; banned name was "
- <<ban_name<<std::endl;
- // This actually doesn't seem to transfer to the client
- DenyAccess(peer_id, L"Your ip is banned. Banned name was "
- +narrow_to_wide(ban_name));
- return;
- }
}
- catch(con::PeerNotFoundException &e)
- {
+ catch (con::PeerNotFoundException &e) {
/*
* no peer for this packet found
* most common reason is peer timeout, e.g. peer didn't
* respond for some time, your server was overloaded or
* things like that.
*/
- infostream<<"Server::ProcessData(): Cancelling: peer "
- <<peer_id<<" not found"<<std::endl;
+ infostream << "Server::ProcessData(): Cancelling: peer "
+ << pkt->getPeerId() << " not found" << std::endl;
return;
}
- try
- {
-
- if(datasize < 2)
+ // If net_proto_version is set, this client has already been handled
+ if(client->getState() > CS_Created) {
+ verbosestream << "Server: Ignoring multiple TOSERVER_INITs from "
+ << addr_s << " (peer_id=" << pkt->getPeerId() << ")" << std::endl;
return;
+ }
- ToServerCommand command = (ToServerCommand)readU16(&data[0]);
-
- if(command == TOSERVER_INIT)
- {
- // [0] u16 TOSERVER_INIT
- // [2] u8 SER_FMT_VER_HIGHEST_READ
- // [3] u8[20] player_name
- // [23] u8[28] password <--- can be sent without this, from old versions
+ verbosestream << "Server: Got TOSERVER_INIT from " << addr_s << " (peer_id="
+ << pkt->getPeerId() << ")" << std::endl;
- if(datasize < 2+1+PLAYERNAME_SIZE)
- return;
+ // Do not allow multiple players in simple singleplayer mode.
+ // This isn't a perfect way to do it, but will suffice for now
+ if(m_simple_singleplayer_mode && m_clients.getClientIDs().size() > 1){
+ infostream << "Server: Not allowing another client (" << addr_s
+ << ") to connect in simple singleplayer mode" << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Running in simple singleplayer mode.");
+ return;
+ }
- RemoteClient* client = getClient(peer_id, CS_Created);
+ // First byte after command is maximum supported
+ // serialization version
+ u8 client_max;
+
+ *pkt >> client_max;
+
+ u8 our_max = SER_FMT_VER_HIGHEST_READ;
+ // Use the highest version supported by both
+ int deployed = std::min(client_max, our_max);
+ // If it's lower than the lowest supported, give up.
+ if(deployed < SER_FMT_CLIENT_VER_LOWEST)
+ deployed = SER_FMT_VER_INVALID;
+
+ if(deployed == SER_FMT_VER_INVALID) {
+ actionstream << "Server: A mismatched client tried to connect from "
+ << addr_s << std::endl;
+ infostream<<"Server: Cannot negotiate serialization version with "
+ << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), std::wstring(
+ L"Your client's version is not supported.\n"
+ L"Server version is ")
+ + narrow_to_wide(minetest_version_simple) + L"."
+ );
+ return;
+ }
- // If net_proto_version is set, this client has already been handled
- if(client->getState() > CS_Created)
- {
- verbosestream<<"Server: Ignoring multiple TOSERVER_INITs from "
- <<addr_s<<" (peer_id="<<peer_id<<")"<<std::endl;
- return;
- }
+ client->setPendingSerializationVersion(deployed);
- verbosestream<<"Server: Got TOSERVER_INIT from "<<addr_s<<" (peer_id="
- <<peer_id<<")"<<std::endl;
+ /*
+ Read and check network protocol version
+ */
- // Do not allow multiple players in simple singleplayer mode.
- // This isn't a perfect way to do it, but will suffice for now
- if(m_simple_singleplayer_mode && m_clients.getClientIDs().size() > 1){
- infostream<<"Server: Not allowing another client ("<<addr_s
- <<") to connect in simple singleplayer mode"<<std::endl;
- DenyAccess(peer_id, L"Running in simple singleplayer mode.");
- return;
- }
+ u16 min_net_proto_version = 0;
+ if(pkt->getSize() >= 1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2)
+ min_net_proto_version = pkt->getU16(1 + PLAYERNAME_SIZE + PASSWORD_SIZE);
+
+ // Use same version as minimum and maximum if maximum version field
+ // doesn't exist (backwards compatibility)
+ u16 max_net_proto_version = min_net_proto_version;
+ if(pkt->getSize() >= 1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2 + 2)
+ max_net_proto_version = pkt->getU16(1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2);
+
+ // Start with client's maximum version
+ u16 net_proto_version = max_net_proto_version;
+
+ // Figure out a working version if it is possible at all
+ if(max_net_proto_version >= SERVER_PROTOCOL_VERSION_MIN ||
+ min_net_proto_version <= SERVER_PROTOCOL_VERSION_MAX) {
+ // If maximum is larger than our maximum, go with our maximum
+ if(max_net_proto_version > SERVER_PROTOCOL_VERSION_MAX)
+ net_proto_version = SERVER_PROTOCOL_VERSION_MAX;
+ // Else go with client's maximum
+ else
+ net_proto_version = max_net_proto_version;
+ }
+
+ verbosestream << "Server: " << addr_s << ": Protocol version: min: "
+ << min_net_proto_version << ", max: " << max_net_proto_version
+ << ", chosen: " << net_proto_version << std::endl;
+
+ client->net_proto_version = net_proto_version;
+
+ if(net_proto_version < SERVER_PROTOCOL_VERSION_MIN ||
+ net_proto_version > SERVER_PROTOCOL_VERSION_MAX) {
+ actionstream << "Server: A mismatched client tried to connect from "
+ << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), std::wstring(
+ L"Your client's version is not supported.\n"
+ L"Server version is ")
+ + narrow_to_wide(minetest_version_simple) + L",\n"
+ + L"server's PROTOCOL_VERSION is "
+ + narrow_to_wide(itos(SERVER_PROTOCOL_VERSION_MIN))
+ + L"..."
+ + narrow_to_wide(itos(SERVER_PROTOCOL_VERSION_MAX))
+ + L", client's PROTOCOL_VERSION is "
+ + narrow_to_wide(itos(min_net_proto_version))
+ + L"..."
+ + narrow_to_wide(itos(max_net_proto_version))
+ );
+ return;
+ }
- // First byte after command is maximum supported
- // serialization version
- u8 client_max = data[2];
- u8 our_max = SER_FMT_VER_HIGHEST_READ;
- // Use the highest version supported by both
- int deployed = std::min(client_max, our_max);
- // If it's lower than the lowest supported, give up.
- if(deployed < SER_FMT_CLIENT_VER_LOWEST)
- deployed = SER_FMT_VER_INVALID;
-
- if(deployed == SER_FMT_VER_INVALID)
- {
- actionstream<<"Server: A mismatched client tried to connect from "
- <<addr_s<<std::endl;
- infostream<<"Server: Cannot negotiate serialization version with "
- <<addr_s<<std::endl;
- DenyAccess(peer_id, std::wstring(
+ if(g_settings->getBool("strict_protocol_version_checking")) {
+ if(net_proto_version != LATEST_PROTOCOL_VERSION) {
+ actionstream << "Server: A mismatched (strict) client tried to "
+ << "connect from " << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), std::wstring(
L"Your client's version is not supported.\n"
L"Server version is ")
- + narrow_to_wide(minetest_version_simple) + L"."
+ + narrow_to_wide(minetest_version_simple) + L",\n"
+ + L"server's PROTOCOL_VERSION (strict) is "
+ + narrow_to_wide(itos(LATEST_PROTOCOL_VERSION))
+ + L", client's PROTOCOL_VERSION is "
+ + narrow_to_wide(itos(min_net_proto_version))
+ + L"..."
+ + narrow_to_wide(itos(max_net_proto_version))
);
return;
}
+ }
- client->setPendingSerializationVersion(deployed);
-
- /*
- Read and check network protocol version
- */
-
- u16 min_net_proto_version = 0;
- if(datasize >= 2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2)
- min_net_proto_version = readU16(&data[2+1+PLAYERNAME_SIZE+PASSWORD_SIZE]);
+ /*
+ Set up player
+ */
+ char playername[PLAYERNAME_SIZE];
+ unsigned int playername_length = 0;
+ for (; playername_length < PLAYERNAME_SIZE; playername_length++ ) {
+ playername[playername_length] = pkt->getChar(1+playername_length);
+ if (pkt->getChar(1+playername_length) == 0)
+ break;
+ }
- // Use same version as minimum and maximum if maximum version field
- // doesn't exist (backwards compatibility)
- u16 max_net_proto_version = min_net_proto_version;
- if(datasize >= 2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2+2)
- max_net_proto_version = readU16(&data[2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2]);
+ if (playername_length == PLAYERNAME_SIZE) {
+ actionstream << "Server: Player with name exceeding max length "
+ << "tried to connect from " << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Name too long");
+ return;
+ }
- // Start with client's maximum version
- u16 net_proto_version = max_net_proto_version;
- // Figure out a working version if it is possible at all
- if(max_net_proto_version >= SERVER_PROTOCOL_VERSION_MIN ||
- min_net_proto_version <= SERVER_PROTOCOL_VERSION_MAX)
- {
- // If maximum is larger than our maximum, go with our maximum
- if(max_net_proto_version > SERVER_PROTOCOL_VERSION_MAX)
- net_proto_version = SERVER_PROTOCOL_VERSION_MAX;
- // Else go with client's maximum
- else
- net_proto_version = max_net_proto_version;
- }
+ if(playername[0]=='\0') {
+ actionstream << "Server: Player with an empty name "
+ << "tried to connect from " << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Empty name");
+ return;
+ }
- verbosestream<<"Server: "<<addr_s<<": Protocol version: min: "
- <<min_net_proto_version<<", max: "<<max_net_proto_version
- <<", chosen: "<<net_proto_version<<std::endl;
+ if(string_allowed(playername, PLAYERNAME_ALLOWED_CHARS) == false) {
+ actionstream << "Server: Player with an invalid name "
+ << "tried to connect from " << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Name contains unallowed characters");
+ return;
+ }
- client->net_proto_version = net_proto_version;
+ if(!isSingleplayer() && strcasecmp(playername, "singleplayer") == 0) {
+ actionstream << "Server: Player with the name \"singleplayer\" "
+ << "tried to connect from " << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Name is not allowed");
+ return;
+ }
- if(net_proto_version < SERVER_PROTOCOL_VERSION_MIN ||
- net_proto_version > SERVER_PROTOCOL_VERSION_MAX)
- {
- actionstream<<"Server: A mismatched client tried to connect from "
- <<addr_s<<std::endl;
- DenyAccess(peer_id, std::wstring(
- L"Your client's version is not supported.\n"
- L"Server version is ")
- + narrow_to_wide(minetest_version_simple) + L",\n"
- + L"server's PROTOCOL_VERSION is "
- + narrow_to_wide(itos(SERVER_PROTOCOL_VERSION_MIN))
- + L"..."
- + narrow_to_wide(itos(SERVER_PROTOCOL_VERSION_MAX))
- + L", client's PROTOCOL_VERSION is "
- + narrow_to_wide(itos(min_net_proto_version))
- + L"..."
- + narrow_to_wide(itos(max_net_proto_version))
- );
+ {
+ std::string reason;
+ if(m_script->on_prejoinplayer(playername, addr_s, reason)) {
+ actionstream << "Server: Player with the name \"" << playername << "\" "
+ << "tried to connect from " << addr_s << " "
+ << "but it was disallowed for the following reason: "
+ << reason << std::endl;
+ DenyAccess(pkt->getPeerId(), narrow_to_wide(reason.c_str()));
return;
}
+ }
- if(g_settings->getBool("strict_protocol_version_checking"))
- {
- if(net_proto_version != LATEST_PROTOCOL_VERSION)
- {
- actionstream<<"Server: A mismatched (strict) client tried to "
- <<"connect from "<<addr_s<<std::endl;
- DenyAccess(peer_id, std::wstring(
- L"Your client's version is not supported.\n"
- L"Server version is ")
- + narrow_to_wide(minetest_version_simple) + L",\n"
- + L"server's PROTOCOL_VERSION (strict) is "
- + narrow_to_wide(itos(LATEST_PROTOCOL_VERSION))
- + L", client's PROTOCOL_VERSION is "
- + narrow_to_wide(itos(min_net_proto_version))
- + L"..."
- + narrow_to_wide(itos(max_net_proto_version))
- );
- return;
- }
- }
+ infostream<<"Server: New connection: \""<<playername<<"\" from "
+ <<addr_s<<" (peer_id="<<pkt->getPeerId()<<")"<<std::endl;
- /*
- Set up player
- */
- char playername[PLAYERNAME_SIZE];
- unsigned int playername_length = 0;
- for (; playername_length < PLAYERNAME_SIZE; playername_length++ ) {
- playername[playername_length] = data[3+playername_length];
- if (data[3+playername_length] == 0)
- break;
+ // Get password
+ char given_password[PASSWORD_SIZE];
+ if(pkt->getSize() < 1 + PLAYERNAME_SIZE + PASSWORD_SIZE) {
+ // old version - assume blank password
+ given_password[0] = 0;
+ }
+ else {
+ for(u32 i=0; i<PASSWORD_SIZE - 1; i++) {
+ given_password[i] = pkt->getChar(21 + i);
}
+ given_password[PASSWORD_SIZE - 1] = 0;
+ }
- if (playername_length == PLAYERNAME_SIZE) {
- actionstream<<"Server: Player with name exceeding max length "
- <<"tried to connect from "<<addr_s<<std::endl;
- DenyAccess(peer_id, L"Name too long");
- return;
- }
+ if(!base64_is_valid(given_password)){
+ actionstream << "Server: " << playername
+ << " supplied invalid password hash" << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Invalid password hash");
+ return;
+ }
+ // Enforce user limit.
+ // Don't enforce for users that have some admin right
+ if(m_clients.getClientIDs(CS_Created).size() >= g_settings->getU16("max_users") &&
+ !checkPriv(playername, "server") &&
+ !checkPriv(playername, "ban") &&
+ !checkPriv(playername, "privs") &&
+ !checkPriv(playername, "password") &&
+ playername != g_settings->get("name")) {
+ actionstream << "Server: " << playername << " tried to join, but there"
+ << " are already max_users="
+ << g_settings->getU16("max_users") << " players." << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Too many users.");
+ return;
+ }
- if(playername[0]=='\0')
- {
- actionstream<<"Server: Player with an empty name "
- <<"tried to connect from "<<addr_s<<std::endl;
- DenyAccess(peer_id, L"Empty name");
- return;
- }
+ std::string checkpwd; // Password hash to check against
+ bool has_auth = m_script->getAuth(playername, &checkpwd, NULL);
- if(string_allowed(playername, PLAYERNAME_ALLOWED_CHARS)==false)
- {
- actionstream<<"Server: Player with an invalid name "
- <<"tried to connect from "<<addr_s<<std::endl;
- DenyAccess(peer_id, L"Name contains unallowed characters");
+ // If no authentication info exists for user, create it
+ if(!has_auth) {
+ if(!isSingleplayer() &&
+ g_settings->getBool("disallow_empty_password") &&
+ std::string(given_password) == "") {
+ actionstream << "Server: " << playername
+ << " supplied empty password" << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Empty passwords are "
+ L"disallowed. Set a password and try again.");
return;
}
+ std::wstring raw_default_password =
+ narrow_to_wide(g_settings->get("default_password"));
+ std::string initial_password =
+ translatePassword(playername, raw_default_password);
- if(!isSingleplayer() && strcasecmp(playername, "singleplayer") == 0)
- {
- actionstream<<"Server: Player with the name \"singleplayer\" "
- <<"tried to connect from "<<addr_s<<std::endl;
- DenyAccess(peer_id, L"Name is not allowed");
- return;
- }
+ // If default_password is empty, allow any initial password
+ if (raw_default_password.length() == 0)
+ initial_password = given_password;
- {
- std::string reason;
- if(m_script->on_prejoinplayer(playername, addr_s, reason))
- {
- actionstream<<"Server: Player with the name \""<<playername<<"\" "
- <<"tried to connect from "<<addr_s<<" "
- <<"but it was disallowed for the following reason: "
- <<reason<<std::endl;
- DenyAccess(peer_id, narrow_to_wide(reason));
- return;
- }
- }
+ m_script->createAuth(playername, initial_password);
+ }
- infostream<<"Server: New connection: \""<<playername<<"\" from "
- <<addr_s<<" (peer_id="<<peer_id<<")"<<std::endl;
+ has_auth = m_script->getAuth(playername, &checkpwd, NULL);
- // Get password
- char given_password[PASSWORD_SIZE];
- if(datasize < 2+1+PLAYERNAME_SIZE+PASSWORD_SIZE)
- {
- // old version - assume blank password
- given_password[0] = 0;
- }
- else
- {
- for(u32 i=0; i<PASSWORD_SIZE-1; i++)
- {
- given_password[i] = data[23+i];
- }
- given_password[PASSWORD_SIZE-1] = 0;
- }
+ if(!has_auth){
+ actionstream << "Server: " << playername << " cannot be authenticated"
+ << " (auth handler does not work?)" << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Not allowed to login");
+ return;
+ }
- if(!base64_is_valid(given_password)){
- actionstream<<"Server: "<<playername
- <<" supplied invalid password hash"<<std::endl;
- DenyAccess(peer_id, L"Invalid password hash");
- return;
- }
+ if(given_password != checkpwd) {
+ actionstream << "Server: " << playername << " supplied wrong password"
+ << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Wrong password");
+ return;
+ }
- // Enforce user limit.
- // Don't enforce for users that have some admin right
- if(m_clients.getClientIDs(CS_Created).size() >= g_settings->getU16("max_users") &&
- !checkPriv(playername, "server") &&
- !checkPriv(playername, "ban") &&
- !checkPriv(playername, "privs") &&
- !checkPriv(playername, "password") &&
- playername != g_settings->get("name"))
- {
- actionstream<<"Server: "<<playername<<" tried to join, but there"
- <<" are already max_users="
- <<g_settings->getU16("max_users")<<" players."<<std::endl;
- DenyAccess(peer_id, L"Too many users.");
- return;
- }
+ RemotePlayer *player =
+ static_cast<RemotePlayer*>(m_env->getPlayer(playername));
- std::string checkpwd; // Password hash to check against
- bool has_auth = m_script->getAuth(playername, &checkpwd, NULL);
-
- // If no authentication info exists for user, create it
- if(!has_auth){
- if(!isSingleplayer() &&
- g_settings->getBool("disallow_empty_password") &&
- std::string(given_password) == ""){
- actionstream<<"Server: "<<playername
- <<" supplied empty password"<<std::endl;
- DenyAccess(peer_id, L"Empty passwords are "
- L"disallowed. Set a password and try again.");
- return;
- }
- std::wstring raw_default_password =
- narrow_to_wide(g_settings->get("default_password"));
- std::string initial_password =
- translatePassword(playername, raw_default_password);
+ if(player && player->peer_id != 0) {
+ errorstream << "Server: " << playername << ": Failed to emerge player"
+ << " (player allocated to an another client)" << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Another client is connected with this "
+ L"name. If your client closed unexpectedly, try again in "
+ L"a minute.");
+ }
- // If default_password is empty, allow any initial password
- if (raw_default_password.length() == 0)
- initial_password = given_password;
+ m_clients.setPlayerName(pkt->getPeerId(), playername);
- m_script->createAuth(playername, initial_password);
- }
+ /*
+ Answer with a TOCLIENT_INIT
+ */
+ {
+ SharedBuffer<u8> reply(2 + 1 + 6 + 8 + 4);
+ writeU16(&reply[0], TOCLIENT_INIT);
+ writeU8(&reply[2], deployed);
+ //send dummy pos for legacy reasons only
+ writeV3S16(&reply[2 + 1], floatToInt(v3f(0,0,0), BS));
+ writeU64(&reply[2 + 1 + 6], m_env->getServerMap().getSeed());
+ writeF1000(&reply[2 + 1 + 6 + 8], g_settings->getFloat("dedicated_server_step"));
- has_auth = m_script->getAuth(playername, &checkpwd, NULL);
+ // Send as reliable
+ m_clients.send(pkt->getPeerId(), 0, reply, true);
+ m_clients.event(pkt->getPeerId(), CSE_Init);
+ }
+}
- if(!has_auth){
- actionstream<<"Server: "<<playername<<" cannot be authenticated"
- <<" (auth handler does not work?)"<<std::endl;
- DenyAccess(peer_id, L"Not allowed to login");
- return;
- }
+void Server::handleCommand_Init2(ToServerPacket* pkt)
+{
+ verbosestream << "Server: Got TOSERVER_INIT2 from "
+ << pkt->getPeerId() << std::endl;
- if(given_password != checkpwd){
- actionstream<<"Server: "<<playername<<" supplied wrong password"
- <<std::endl;
- DenyAccess(peer_id, L"Wrong password");
+ m_clients.event(pkt->getPeerId(), CSE_GotInit2);
+ u16 protocol_version = m_clients.getProtocolVersion(pkt->getPeerId());
+
+
+ ///// begin compatibility code
+ PlayerSAO* playersao = NULL;
+ if (protocol_version <= 22) {
+ playersao = StageTwoClientInit(pkt->getPeerId());
+
+ if (playersao == NULL) {
+ errorstream
+ << "TOSERVER_INIT2 stage 2 client init failed for peer "
+ << pkt->getPeerId() << std::endl;
return;
}
+ }
+ ///// end compatibility code
- RemotePlayer *player =
- static_cast<RemotePlayer*>(m_env->getPlayer(playername));
+ /*
+ Send some initialization data
+ */
- if(player && player->peer_id != 0){
- errorstream<<"Server: "<<playername<<": Failed to emerge player"
- <<" (player allocated to an another client)"<<std::endl;
- DenyAccess(peer_id, L"Another client is connected with this "
- L"name. If your client closed unexpectedly, try again in "
- L"a minute.");
- }
+ infostream << "Server: Sending content to "
+ << getPlayerName(pkt->getPeerId()) << std::endl;
- m_clients.setPlayerName(peer_id,playername);
+ // Send player movement settings
+ SendMovement(pkt->getPeerId());
- /*
- Answer with a TOCLIENT_INIT
- */
- {
- SharedBuffer<u8> reply(2+1+6+8+4);
- writeU16(&reply[0], TOCLIENT_INIT);
- writeU8(&reply[2], deployed);
- //send dummy pos for legacy reasons only
- writeV3S16(&reply[2+1], floatToInt(v3f(0,0,0), BS));
- writeU64(&reply[2+1+6], m_env->getServerMap().getSeed());
- writeF1000(&reply[2+1+6+8], g_settings->getFloat("dedicated_server_step"));
+ // Send item definitions
+ SendItemDef(pkt->getPeerId(), m_itemdef, protocol_version);
- // Send as reliable
- m_clients.send(peer_id, 0, reply, true);
- m_clients.event(peer_id, CSE_Init);
- }
+ // Send node definitions
+ SendNodeDef(pkt->getPeerId(), m_nodedef, protocol_version);
- return;
+ m_clients.event(pkt->getPeerId(), CSE_SetDefinitionsSent);
+
+ // Send media announcement
+ sendMediaAnnouncement(pkt->getPeerId());
+
+ // Send detached inventories
+ sendDetachedInventories(pkt->getPeerId());
+
+ // Send time of day
+ u16 time = m_env->getTimeOfDay();
+ float time_speed = g_settings->getFloat("time_speed");
+ SendTimeOfDay(pkt->getPeerId(), time, time_speed);
+
+ ///// begin compatibility code
+ if (protocol_version <= 22) {
+ m_clients.event(pkt->getPeerId(), CSE_SetClientReady);
+ m_script->on_joinplayer(playersao);
}
+ ///// end compatibility code
- if(command == TOSERVER_INIT2)
- {
+ // Warnings about protocol version can be issued here
+ if(getClient(pkt->getPeerId())->net_proto_version < LATEST_PROTOCOL_VERSION) {
+ SendChatMessage(pkt->getPeerId(), L"# Server: WARNING: YOUR CLIENT'S "
+ L"VERSION MAY NOT BE FULLY COMPATIBLE WITH THIS SERVER!");
+ }
+}
- verbosestream<<"Server: Got TOSERVER_INIT2 from "
- <<peer_id<<std::endl;
+void Server::handleCommand_RequestMedia(ToServerPacket* pkt)
+{
+ std::list<std::string> tosend;
+ u16 numfiles;
- m_clients.event(peer_id, CSE_GotInit2);
- u16 protocol_version = m_clients.getProtocolVersion(peer_id);
+ *pkt >> numfiles;
+ infostream << "Sending " << numfiles << " files to "
+ << getPlayerName(pkt->getPeerId()) << std::endl;
+ verbosestream << "TOSERVER_REQUEST_MEDIA: " << std::endl;
- ///// begin compatibility code
- PlayerSAO* playersao = NULL;
- if (protocol_version <= 22) {
- playersao = StageTwoClientInit(peer_id);
+ for(int i = 0; i < numfiles; i++) {
+ std::string name;
- if (playersao == NULL) {
- errorstream
- << "TOSERVER_INIT2 stage 2 client init failed for peer "
- << peer_id << std::endl;
- return;
- }
- }
- ///// end compatibility code
+ *pkt >> name;
- /*
- Send some initialization data
- */
+ tosend.push_back(name);
+ verbosestream << "TOSERVER_REQUEST_MEDIA: requested file "
+ << name << std::endl;
+ }
- infostream<<"Server: Sending content to "
- <<getPlayerName(peer_id)<<std::endl;
+ sendRequestedMedia(pkt->getPeerId(), tosend);
+}
- // Send player movement settings
- SendMovement(peer_id);
+void Server::handleCommand_ReceivedMedia(ToServerPacket* pkt)
+{
+}
- // Send item definitions
- SendItemDef(peer_id, m_itemdef, protocol_version);
+void Server::handleCommand_ClientReady(ToServerPacket* pkt)
+{
+ u16 peer_id = pkt->getPeerId();
+ u16 peer_proto_ver = getClient(peer_id, CS_InitDone)->net_proto_version;
- // Send node definitions
- SendNodeDef(peer_id, m_nodedef, protocol_version);
+ // clients <= protocol version 22 did not send ready message,
+ // they're already initialized
+ if (peer_proto_ver <= 22) {
+ infostream << "Client sent message not expected by a "
+ << "client using protocol version <= 22,"
+ << "disconnecing peer_id: " << peer_id << std::endl;
+ m_con.DisconnectPeer(peer_id);
+ return;
+ }
- m_clients.event(peer_id, CSE_SetDefinitionsSent);
+ PlayerSAO* playersao = StageTwoClientInit(peer_id);
- // Send media announcement
- sendMediaAnnouncement(peer_id);
+ if (playersao == NULL) {
+ errorstream
+ << "TOSERVER_CLIENT_READY stage 2 client init failed for peer_id: "
+ << peer_id << std::endl;
+ m_con.DisconnectPeer(peer_id);
+ return;
+ }
- // Send detached inventories
- sendDetachedInventories(peer_id);
- // Send time of day
- u16 time = m_env->getTimeOfDay();
- float time_speed = g_settings->getFloat("time_speed");
- SendTimeOfDay(peer_id, time, time_speed);
+ if(pkt->getSize() < 8) {
+ errorstream
+ << "TOSERVER_CLIENT_READY client sent inconsistent data, disconnecting peer_id: "
+ << peer_id << std::endl;
+ m_con.DisconnectPeer(peer_id);
+ return;
+ }
- ///// begin compatibility code
- if (protocol_version <= 22) {
- m_clients.event(peer_id, CSE_SetClientReady);
- m_script->on_joinplayer(playersao);
- }
- ///// end compatibility code
+ u8 major_ver, minor_ver, patch_ver;
+ *pkt >> major_ver >> minor_ver >> patch_ver;
- // Warnings about protocol version can be issued here
- if(getClient(peer_id)->net_proto_version < LATEST_PROTOCOL_VERSION)
- {
- SendChatMessage(peer_id, L"# Server: WARNING: YOUR CLIENT'S "
- L"VERSION MAY NOT BE FULLY COMPATIBLE WITH THIS SERVER!");
- }
+ m_clients.setClientVersion(
+ peer_id, major_ver, minor_ver, patch_ver,
+ std::string(pkt->getString(6),(u16) pkt->getU8(4)));
+ m_clients.event(peer_id, CSE_SetClientReady);
+ m_script->on_joinplayer(playersao);
+}
+
+void Server::handleCommand_GotBlocks(ToServerPacket* pkt)
+{
+ if(pkt->getSize() < 1)
return;
+
+ /*
+ [0] u16 command
+ [2] u8 count
+ [3] v3s16 pos_0
+ [3+6] v3s16 pos_1
+ ...
+ */
+
+ u8 count;
+ *pkt >> count;
+
+ RemoteClient *client = getClient(pkt->getPeerId());
+
+ for(u16 i=0; i<count; i++) {
+ if((s16)pkt->getSize() < 1 + (i + 1) * 6)
+ throw con::InvalidIncomingDataException
+ ("GOTBLOCKS length is too short");
+ v3s16 p;
+
+ *pkt >> p;
+
+ client->GotBlock(p);
}
+}
- u8 peer_ser_ver = getClient(peer_id, CS_InitDone)->serialization_version;
- u16 peer_proto_ver = getClient(peer_id, CS_InitDone)->net_proto_version;
+void Server::handleCommand_PlayerPos(ToServerPacket* pkt)
+{
+ if(pkt->getSize() < 12 + 12 + 4 + 4)
+ return;
- if(peer_ser_ver == SER_FMT_VER_INVALID)
- {
- errorstream<<"Server::ProcessData(): Cancelling: Peer"
- " serialization format invalid or not initialized."
- " Skipping incoming command="<<command<<std::endl;
+ v3s32 ps, ss;
+ s32 f32pitch, f32yaw;
+
+ *pkt >> ps;
+ *pkt >> ss;
+ *pkt >> f32pitch;
+ *pkt >> f32yaw;
+
+ f32 pitch = (f32)f32pitch / 100.0;
+ f32 yaw = (f32)f32yaw / 100.0;
+ u32 keyPressed = 0;
+
+ if(pkt->getSize() >= 12 + 12 + 4 + 4 + 4)
+ *pkt >> keyPressed;
+
+ v3f position((f32)ps.X / 100.0, (f32)ps.Y / 100.0, (f32)ps.Z / 100.0);
+ v3f speed((f32)ss.X / 100.0, (f32)ss.Y / 100.0, (f32)ss.Z / 100.0);
+ pitch = wrapDegrees(pitch);
+ yaw = wrapDegrees(yaw);
+
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if(player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
return;
}
- /* Handle commands relate to client startup */
- if(command == TOSERVER_REQUEST_MEDIA) {
- std::string datastring((char*)&data[2], datasize-2);
- std::istringstream is(datastring, std::ios_base::binary);
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if(playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
- std::list<std::string> tosend;
- u16 numfiles = readU16(is);
+ player->setPosition(position);
+ player->setSpeed(speed);
+ player->setPitch(pitch);
+ player->setYaw(yaw);
+ player->keyPressed=keyPressed;
+ player->control.up = (bool)(keyPressed & 1);
+ player->control.down = (bool)(keyPressed & 2);
+ player->control.left = (bool)(keyPressed & 4);
+ player->control.right = (bool)(keyPressed & 8);
+ player->control.jump = (bool)(keyPressed & 16);
+ player->control.aux1 = (bool)(keyPressed & 32);
+ player->control.sneak = (bool)(keyPressed & 64);
+ player->control.LMB = (bool)(keyPressed & 128);
+ player->control.RMB = (bool)(keyPressed & 256);
+
+ bool cheated = playersao->checkMovementCheat();
+ if(cheated) {
+ // Call callbacks
+ m_script->on_cheat(playersao, "moved_too_fast");
+ }
+}
- infostream<<"Sending "<<numfiles<<" files to "
- <<getPlayerName(peer_id)<<std::endl;
- verbosestream<<"TOSERVER_REQUEST_MEDIA: "<<std::endl;
+void Server::handleCommand_DeletedBlocks(ToServerPacket* pkt)
+{
+ if(pkt->getSize() < 1)
+ return;
- for(int i = 0; i < numfiles; i++) {
- std::string name = deSerializeString(is);
- tosend.push_back(name);
- verbosestream<<"TOSERVER_REQUEST_MEDIA: requested file "
- <<name<<std::endl;
- }
+ /*
+ [0] u16 command
+ [2] u8 count
+ [3] v3s16 pos_0
+ [3+6] v3s16 pos_1
+ ...
+ */
+
+ u8 count;
+ *pkt >> count;
+
+ RemoteClient *client = getClient(pkt->getPeerId());
+
+ for(u16 i=0; i<count; i++) {
+ if((s16)pkt->getSize() < 1 + (i + 1) * 6)
+ throw con::InvalidIncomingDataException
+ ("DELETEDBLOCKS length is too short");
+ v3s16 p;
+ *pkt >> p;
+
+ client->SetBlockNotSent(p);
+ }
+}
- sendRequestedMedia(peer_id, tosend);
+void Server::handleCommand_InventoryAction(ToServerPacket* pkt)
+{
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if(player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
return;
}
- else if(command == TOSERVER_RECEIVED_MEDIA) {
+
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if(playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ // Strip command and create a stream
+ std::string datastring(pkt->getString(0), pkt->getSize());
+ verbosestream << "TOSERVER_INVENTORY_ACTION: data=" << datastring
+ << std::endl;
+ std::istringstream is(datastring, std::ios_base::binary);
+ // Create an action
+ InventoryAction *a = InventoryAction::deSerialize(is);
+ if(a == NULL) {
+ infostream << "TOSERVER_INVENTORY_ACTION: "
+ << "InventoryAction::deSerialize() returned NULL"
+ << std::endl;
return;
}
- else if(command == TOSERVER_CLIENT_READY) {
- // clients <= protocol version 22 did not send ready message,
- // they're already initialized
- if (peer_proto_ver <= 22) {
- infostream << "Client sent message not expected by a "
- << "client using protocol version <= 22,"
- << "disconnecing peer_id: " << peer_id << std::endl;
- m_con.DisconnectPeer(peer_id);
+
+ // If something goes wrong, this player is to blame
+ RollbackScopeActor rollback_scope(m_rollback,
+ std::string("player:")+player->getName());
+
+ /*
+ Note: Always set inventory not sent, to repair cases
+ where the client made a bad prediction.
+ */
+
+ /*
+ Handle restrictions and special cases of the move action
+ */
+ if(a->getType() == IACTION_MOVE) {
+ IMoveAction *ma = (IMoveAction*)a;
+
+ ma->from_inv.applyCurrentPlayer(player->getName());
+ ma->to_inv.applyCurrentPlayer(player->getName());
+
+ setInventoryModified(ma->from_inv);
+ setInventoryModified(ma->to_inv);
+
+ bool from_inv_is_current_player =
+ (ma->from_inv.type == InventoryLocation::PLAYER) &&
+ (ma->from_inv.name == player->getName());
+
+ bool to_inv_is_current_player =
+ (ma->to_inv.type == InventoryLocation::PLAYER) &&
+ (ma->to_inv.name == player->getName());
+
+ /*
+ Disable moving items out of craftpreview
+ */
+ if(ma->from_list == "craftpreview") {
+ infostream << "Ignoring IMoveAction from "
+ << (ma->from_inv.dump()) << ":" << ma->from_list
+ << " to " << (ma->to_inv.dump()) << ":" << ma->to_list
+ << " because src is " << ma->from_list << std::endl;
+ delete a;
return;
}
- PlayerSAO* playersao = StageTwoClientInit(peer_id);
+ /*
+ 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;
+ }
- if (playersao == NULL) {
- errorstream
- << "TOSERVER_CLIENT_READY stage 2 client init failed for peer_id: "
- << peer_id << std::endl;
- m_con.DisconnectPeer(peer_id);
+ // Disallow moving items in elsewhere than player's inventory
+ // if not allowed to interact
+ if(!checkPriv(player->getName(), "interact") &&
+ (!from_inv_is_current_player ||
+ !to_inv_is_current_player)) {
+ infostream << "Cannot move outside of player's inventory: "
+ << "No interact privilege" << std::endl;
+ delete a;
return;
}
+ }
+ /*
+ Handle restrictions and special cases of the drop action
+ */
+ else if(a->getType() == IACTION_DROP) {
+ IDropAction *da = (IDropAction*)a;
+ da->from_inv.applyCurrentPlayer(player->getName());
- if(datasize < 2+8) {
- errorstream
- << "TOSERVER_CLIENT_READY client sent inconsistent data, disconnecting peer_id: "
- << peer_id << std::endl;
- m_con.DisconnectPeer(peer_id);
+ setInventoryModified(da->from_inv);
+
+ /*
+ Disable dropping items out of craftpreview
+ */
+ if(da->from_list == "craftpreview") {
+ infostream << "Ignoring IDropAction from "
+ << (da->from_inv.dump()) << ":" << da->from_list
+ << " because src is " << da->from_list << std::endl;
+ delete a;
return;
}
- m_clients.setClientVersion(
- peer_id,
- data[2], data[3], data[4],
- std::string((char*) &data[8],(u16) data[6]));
+ // Disallow dropping items if not allowed to interact
+ if(!checkPriv(player->getName(), "interact")) {
+ delete a;
+ return;
+ }
+ }
+ /*
+ Handle restrictions and special cases of the craft action
+ */
+ else if(a->getType() == IACTION_CRAFT) {
+ ICraftAction *ca = (ICraftAction*)a;
- m_clients.event(peer_id, CSE_SetClientReady);
- m_script->on_joinplayer(playersao);
+ ca->craft_inv.applyCurrentPlayer(player->getName());
- }
- else if(command == TOSERVER_GOTBLOCKS)
- {
- if(datasize < 2+1)
- return;
+ setInventoryModified(ca->craft_inv);
- /*
- [0] u16 command
- [2] u8 count
- [3] v3s16 pos_0
- [3+6] v3s16 pos_1
- ...
- */
+ //bool craft_inv_is_current_player =
+ // (ca->craft_inv.type == InventoryLocation::PLAYER) &&
+ // (ca->craft_inv.name == player->getName());
- 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);
+ // Disallow crafting if not allowed to interact
+ if(!checkPriv(player->getName(), "interact")) {
+ infostream << "Cannot craft: "
+ << "No interact privilege" << std::endl;
+ delete a;
+ return;
}
- return;
}
- if (m_clients.getClientState(peer_id) < CS_Active)
- {
- if (command == TOSERVER_PLAYERPOS) return;
+ // Do the action
+ a->apply(this, playersao, this);
+ // Eat the action
+ delete a;
+}
- errorstream<<"Got packet command: " << command << " for peer id "
- << peer_id << " but client isn't active yet. Dropping packet "
- <<std::endl;
- return;
+void Server::handleCommand_ChatMessage(ToServerPacket* pkt)
+{
+ /*
+ u16 command
+ u16 length
+ wstring message
+ */
+ u16 len;
+ *pkt >> len;
+
+ std::wstring message;
+ for(u16 i=0; i<len; i++) {
+ u16 tmp_wchar;
+ *pkt >> tmp_wchar;
+
+ message += (wchar_t)tmp_wchar;
}
- Player *player = m_env->getPlayer(peer_id);
+ Player *player = m_env->getPlayer(pkt->getPeerId());
if(player == NULL) {
- errorstream<<"Server::ProcessData(): Cancelling: "
- "No player for peer_id="<<peer_id
- << " disconnecting peer!" <<std::endl;
- m_con.DisconnectPeer(peer_id);
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
return;
}
- PlayerSAO *playersao = player->getPlayerSAO();
- if(playersao == NULL) {
- errorstream<<"Server::ProcessData(): Cancelling: "
- "No player object for peer_id="<<peer_id
- << " disconnecting peer!" <<std::endl;
- m_con.DisconnectPeer(peer_id);
- return;
- }
+ // If something goes wrong, this player is to blame
+ RollbackScopeActor rollback_scope(m_rollback,
+ std::string("player:")+player->getName());
- if(command == TOSERVER_PLAYERPOS)
- {
- if(datasize < 2+12+12+4+4)
- return;
+ // Get player name of this client
+ std::wstring name = narrow_to_wide(player->getName());
- u32 start = 0;
- v3s32 ps = readV3S32(&data[start+2]);
- v3s32 ss = readV3S32(&data[start+2+12]);
- f32 pitch = (f32)readS32(&data[2+12+12]) / 100.0;
- f32 yaw = (f32)readS32(&data[2+12+12+4]) / 100.0;
- u32 keyPressed = 0;
- if(datasize >= 2+12+12+4+4+4)
- keyPressed = (u32)readU32(&data[2+12+12+4+4]);
- v3f position((f32)ps.X/100., (f32)ps.Y/100., (f32)ps.Z/100.);
- v3f speed((f32)ss.X/100., (f32)ss.Y/100., (f32)ss.Z/100.);
- pitch = wrapDegrees(pitch);
- yaw = wrapDegrees(yaw);
-
- player->setPosition(position);
- player->setSpeed(speed);
- player->setPitch(pitch);
- player->setYaw(yaw);
- player->keyPressed=keyPressed;
- player->control.up = (bool)(keyPressed&1);
- player->control.down = (bool)(keyPressed&2);
- player->control.left = (bool)(keyPressed&4);
- player->control.right = (bool)(keyPressed&8);
- player->control.jump = (bool)(keyPressed&16);
- player->control.aux1 = (bool)(keyPressed&32);
- player->control.sneak = (bool)(keyPressed&64);
- player->control.LMB = (bool)(keyPressed&128);
- player->control.RMB = (bool)(keyPressed&256);
-
- bool cheated = playersao->checkMovementCheat();
- if(cheated){
- // Call callbacks
- m_script->on_cheat(playersao, "moved_too_fast");
- }
+ // Run script hook
+ bool ate = m_script->on_chat_message(player->getName(),
+ wide_to_narrow(message));
+ // If script ate the message, don't proceed
+ if(ate)
+ return;
- /*infostream<<"Server::ProcessData(): Moved player "<<peer_id<<" to "
- <<"("<<position.X<<","<<position.Y<<","<<position.Z<<")"
- <<" pitch="<<pitch<<" yaw="<<yaw<<std::endl;*/
+ // Line to send to players
+ std::wstring line;
+ // Whether to send to the player that sent the line
+ bool send_to_sender_only = false;
+
+ // Commands are implemented in Lua, so only catch invalid
+ // commands that were not "eaten" and send an error back
+ if(message[0] == L'/') {
+ message = message.substr(1);
+ send_to_sender_only = true;
+ if(message.length() == 0)
+ line += L"-!- Empty command";
+ else
+ line += L"-!- Invalid command: " + str_split(message, L' ')[0];
+ }
+ else {
+ if(checkPriv(player->getName(), "shout")) {
+ line += L"<";
+ line += name;
+ line += L"> ";
+ line += message;
+ } else {
+ line += L"-!- You don't have permission to shout.";
+ send_to_sender_only = true;
+ }
}
- else if(command == TOSERVER_DELETEDBLOCKS)
- {
- if(datasize < 2+1)
- return;
+ if(line != L"")
+ {
/*
- [0] u16 command
- [2] u8 count
- [3] v3s16 pos_0
- [3+6] v3s16 pos_1
- ...
+ Send the message to sender
*/
+ if (send_to_sender_only) {
+ SendChatMessage(pkt->getPeerId(), line);
+ }
+ /*
+ Send the message to others
+ */
+ else {
+ actionstream << "CHAT: " << wide_to_narrow(line)<<std::endl;
- 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);
+ std::list<u16> clients = m_clients.getClientIDs();
+
+ for(std::list<u16>::iterator
+ i = clients.begin();
+ i != clients.end(); ++i) {
+ if (*i != pkt->getPeerId())
+ SendChatMessage(*i, line);
+ }
}
}
- else if(command == TOSERVER_CLICK_OBJECT)
- {
- infostream<<"Server: CLICK_OBJECT not supported anymore"<<std::endl;
+}
+
+void Server::handleCommand_Damage(ToServerPacket* pkt)
+{
+ u8 damage;
+
+ *pkt >> damage;
+
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if(player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
return;
}
- else if(command == TOSERVER_CLICK_ACTIVEOBJECT)
- {
- infostream<<"Server: CLICK_ACTIVEOBJECT not supported anymore"<<std::endl;
+
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if(playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
return;
}
- else if(command == TOSERVER_GROUND_ACTION)
- {
- infostream<<"Server: GROUND_ACTION not supported anymore"<<std::endl;
- return;
+ if(g_settings->getBool("enable_damage")) {
+ actionstream << player->getName() << " damaged by "
+ << (int)damage << " hp at " << PP(player->getPosition() / BS)
+ << std::endl;
+
+ playersao->setHP(playersao->getHP() - damage);
+
+ if(playersao->getHP() == 0 && playersao->m_hp_not_sent)
+ DiePlayer(pkt->getPeerId());
+
+ if(playersao->m_hp_not_sent)
+ SendPlayerHP(pkt->getPeerId());
}
- 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;
+}
+
+void Server::handleCommand_Breath(ToServerPacket* pkt)
+{
+ u16 breath;
+
+ *pkt >> breath;
+
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if(player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
return;
}
- else if(command == TOSERVER_SIGNNODETEXT)
- {
- infostream<<"Server: SIGNNODETEXT not supported anymore"
- <<std::endl;
+
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if(playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
return;
}
- else if(command == TOSERVER_INVENTORY_ACTION)
- {
- // Strip command and create a stream
- std::string datastring((char*)&data[2], datasize-2);
- verbosestream<<"TOSERVER_INVENTORY_ACTION: data="<<datastring<<std::endl;
- std::istringstream is(datastring, std::ios_base::binary);
- // Create an action
- InventoryAction *a = InventoryAction::deSerialize(is);
- if(a == NULL)
- {
- infostream<<"TOSERVER_INVENTORY_ACTION: "
- <<"InventoryAction::deSerialize() returned NULL"
- <<std::endl;
- return;
- }
- // If something goes wrong, this player is to blame
- RollbackScopeActor rollback_scope(m_rollback,
- std::string("player:")+player->getName());
+ playersao->setBreath(breath);
+ m_script->player_event(playersao,"breath_changed");
+}
- /*
- Note: Always set inventory not sent, to repair cases
- where the client made a bad prediction.
- */
+void Server::handleCommand_Password(ToServerPacket* pkt)
+{
+ /*
+ [0] u16 TOSERVER_PASSWORD
+ [2] u8[28] old password
+ [30] u8[28] new password
+ */
- /*
- Handle restrictions and special cases of the move action
- */
- if(a->getType() == IACTION_MOVE)
- {
- IMoveAction *ma = (IMoveAction*)a;
+ if(pkt->getSize() != PASSWORD_SIZE * 2)
+ return;
- ma->from_inv.applyCurrentPlayer(player->getName());
- ma->to_inv.applyCurrentPlayer(player->getName());
+ std::string oldpwd;
+ std::string newpwd;
- setInventoryModified(ma->from_inv);
- setInventoryModified(ma->to_inv);
+ for(u32 i=0; i<PASSWORD_SIZE - 1; i++) {
+ char c = pkt->getChar(i);
+ if(c == 0)
+ break;
+ oldpwd += c;
+ }
- bool from_inv_is_current_player =
- (ma->from_inv.type == InventoryLocation::PLAYER) &&
- (ma->from_inv.name == player->getName());
+ for(u32 i=0; i<PASSWORD_SIZE - 1; i++) {
+ char c = pkt->getChar(PASSWORD_SIZE + i);
+ if(c == 0)
+ break;
+ newpwd += c;
+ }
- bool to_inv_is_current_player =
- (ma->to_inv.type == InventoryLocation::PLAYER) &&
- (ma->to_inv.name == player->getName());
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if(player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
- /*
- 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;
- }
+ if(!base64_is_valid(newpwd)) {
+ infostream<<"Server: " << player->getName() <<
+ " supplied invalid password hash" << std::endl;
+ // Wrong old password supplied!!
+ SendChatMessage(pkt->getPeerId(), L"Invalid new password hash supplied. Password NOT changed.");
+ 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;
- }
+ infostream << "Server: Client requests a password change from "
+ << "'" << oldpwd << "' to '" << newpwd << "'" << std::endl;
- // Disallow moving items in elsewhere than player's inventory
- // if not allowed to interact
- if(!checkPriv(player->getName(), "interact") &&
- (!from_inv_is_current_player ||
- !to_inv_is_current_player))
- {
- infostream<<"Cannot move outside of player's inventory: "
- <<"No interact privilege"<<std::endl;
- delete a;
- return;
- }
- }
- /*
- Handle restrictions and special cases of the drop action
- */
- else if(a->getType() == IACTION_DROP)
- {
- IDropAction *da = (IDropAction*)a;
+ std::string playername = player->getName();
- da->from_inv.applyCurrentPlayer(player->getName());
+ std::string checkpwd;
+ m_script->getAuth(playername, &checkpwd, NULL);
- setInventoryModified(da->from_inv);
+ if(oldpwd != checkpwd) {
+ infostream << "Server: invalid old password" << std::endl;
+ // Wrong old password supplied!!
+ SendChatMessage(pkt->getPeerId(), L"Invalid old password supplied. Password NOT changed.");
+ return;
+ }
- /*
- Disable dropping items out of craftpreview
- */
- if(da->from_list == "craftpreview")
- {
- infostream<<"Ignoring IDropAction from "
- <<(da->from_inv.dump())<<":"<<da->from_list
- <<" because src is "<<da->from_list<<std::endl;
- delete a;
- return;
- }
+ bool success = m_script->setPassword(playername, newpwd);
+ if(success) {
+ actionstream << player->getName() << " changes password" << std::endl;
+ SendChatMessage(pkt->getPeerId(), L"Password change successful.");
+ } else {
+ actionstream << player->getName() << " tries to change password but "
+ << "it fails" << std::endl;
+ SendChatMessage(pkt->getPeerId(), L"Password change failed or inavailable.");
+ }
+}
- // Disallow dropping items if not allowed to interact
- if(!checkPriv(player->getName(), "interact"))
- {
- delete a;
- return;
- }
- }
- /*
- Handle restrictions and special cases of the craft action
- */
- else if(a->getType() == IACTION_CRAFT)
- {
- ICraftAction *ca = (ICraftAction*)a;
+void Server::handleCommand_PlayerItem(ToServerPacket* pkt)
+{
+ if (pkt->getSize() < 2)
+ return;
- ca->craft_inv.applyCurrentPlayer(player->getName());
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if(player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
- setInventoryModified(ca->craft_inv);
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if(playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
- //bool craft_inv_is_current_player =
- // (ca->craft_inv.type == InventoryLocation::PLAYER) &&
- // (ca->craft_inv.name == player->getName());
+ u16 item;
- // Disallow crafting if not allowed to interact
- if(!checkPriv(player->getName(), "interact"))
- {
- infostream<<"Cannot craft: "
- <<"No interact privilege"<<std::endl;
- delete a;
- return;
- }
- }
+ *pkt >> item;
- // Do the action
- a->apply(this, playersao, this);
- // Eat the action
- delete a;
+ playersao->setWieldIndex(item);
+}
+
+void Server::handleCommand_Respawn(ToServerPacket* pkt)
+{
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if(player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
}
- 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);
+ if(player->hp != 0 || !g_settings->getBool("enable_damage"))
+ return;
- std::wstring message;
- for(u16 i=0; i<len; i++)
- {
- is.read((char*)buf, 2);
- message += (wchar_t)readU16(buf);
- }
+ RespawnPlayer(pkt->getPeerId());
- // If something goes wrong, this player is to blame
- RollbackScopeActor rollback_scope(m_rollback,
- std::string("player:")+player->getName());
+ actionstream<<player->getName()<<" respawns at "
+ <<PP(player->getPosition()/BS)<<std::endl;
- // Get player name of this client
- std::wstring name = narrow_to_wide(player->getName());
+ // ActiveObject is added to environment in AsyncRunStep after
+ // the previous addition has been succesfully removed
+}
- // Run script hook
- bool ate = m_script->on_chat_message(player->getName(),
- wide_to_narrow(message));
- // If script ate the message, don't proceed
- if(ate)
- return;
+void Server::handleCommand_Interact(ToServerPacket* pkt)
+{
+ std::string datastring(pkt->getString(0), pkt->getSize());
+ std::istringstream is(datastring, std::ios_base::binary);
- // Line to send to players
- std::wstring line;
- // Whether to send to the player that sent the line
- bool send_to_sender_only = false;
+ /*
+ [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);
- // Commands are implemented in Lua, so only catch invalid
- // commands that were not "eaten" and send an error back
- if(message[0] == L'/')
- {
- message = message.substr(1);
- send_to_sender_only = true;
- if(message.length() == 0)
- line += L"-!- Empty command";
- else
- line += L"-!- Invalid command: " + str_split(message, L' ')[0];
- }
- else
- {
- if(checkPriv(player->getName(), "shout")){
- line += L"<";
- line += name;
- line += L"> ";
- line += message;
- } else {
- line += L"-!- You don't have permission to shout.";
- send_to_sender_only = true;
- }
- }
+ verbosestream << "TOSERVER_INTERACT: action=" << (int)action << ", item="
+ << item_i << ", pointed=" << pointed.dump() << std::endl;
- if(line != L"")
- {
- /*
- Send the message to sender
- */
- if (send_to_sender_only)
- {
- SendChatMessage(peer_id, line);
- }
- /*
- Send the message to others
- */
- else
- {
- actionstream<<"CHAT: "<<wide_to_narrow(line)<<std::endl;
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if(player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
- std::list<u16> clients = m_clients.getClientIDs();
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if(playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
- for(std::list<u16>::iterator
- i = clients.begin();
- i != clients.end(); ++i)
- {
- if (*i != peer_id)
- SendChatMessage(*i, line);
- }
- }
- }
+ if(player->hp == 0) {
+ verbosestream << "TOSERVER_INTERACT: " << player->getName()
+ << " tried to interact, but is dead!" << std::endl;
+ return;
}
- 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;
+ v3f player_pos = playersao->getLastGoodPosition();
- playersao->setHP(playersao->getHP() - damage);
+ // Update wielded item
+ playersao->setWieldIndex(item_i);
- if(playersao->getHP() == 0 && playersao->m_hp_not_sent)
- DiePlayer(peer_id);
+ // Get pointed to node (undefined if not POINTEDTYPE_NODE)
+ v3s16 p_under = pointed.node_undersurface;
+ v3s16 p_above = pointed.node_abovesurface;
- if(playersao->m_hp_not_sent)
- SendPlayerHP(peer_id);
+ // Get pointed to object (NULL if not POINTEDTYPE_OBJECT)
+ ServerActiveObject *pointed_object = NULL;
+ if(pointed.type == POINTEDTHING_OBJECT) {
+ pointed_object = m_env->getActiveObject(pointed.object_id);
+ if(pointed_object == NULL) {
+ verbosestream << "TOSERVER_INTERACT: "
+ "pointed object is NULL" << std::endl;
+ return;
}
+
}
- else if(command == TOSERVER_BREATH)
- {
- std::string datastring((char*)&data[2], datasize-2);
- std::istringstream is(datastring, std::ios_base::binary);
- u16 breath = readU16(is);
- playersao->setBreath(breath);
- m_script->player_event(playersao,"breath_changed");
+
+ 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;
}
- 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)
+ /*
+ Check that target is reasonably close
+ (only when digging or placing things)
+ */
+ if(action == 0 || action == 2 || action == 3) {
+ float d = player_pos.getDistanceFrom(pointed_pos_under);
+ float max_d = BS * 14; // Just some large enough value
+ if(d > max_d) {
+ actionstream << "Player " << player->getName()
+ << " tried to access " << pointed.dump()
+ << " from too far: "
+ << "d=" << d <<", max_d=" << max_d
+ << ". ignoring." << std::endl;
+ // Re-send block to revert change on client-side
+ RemoteClient *client = getClient(pkt->getPeerId());
+ v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
+ client->SetBlockNotSent(blockpos);
+ // Call callbacks
+ m_script->on_cheat(playersao, "interacted_too_far");
+ // Do nothing else
return;
- /*char password[PASSWORD_SIZE];
- for(u32 i=0; i<PASSWORD_SIZE-1; i++)
- password[i] = data[2+i];
- password[PASSWORD_SIZE-1] = 0;*/
- std::string oldpwd;
- for(u32 i=0; i<PASSWORD_SIZE-1; i++)
- {
- char c = data[2+i];
- if(c == 0)
- break;
- oldpwd += c;
- }
- std::string newpwd;
- for(u32 i=0; i<PASSWORD_SIZE-1; i++)
- {
- char c = data[2+PASSWORD_SIZE+i];
- if(c == 0)
- break;
- newpwd += c;
}
+ }
- if(!base64_is_valid(newpwd)){
- infostream<<"Server: "<<player->getName()<<" supplied invalid password hash"<<std::endl;
- // Wrong old password supplied!!
- SendChatMessage(peer_id, L"Invalid new password hash supplied. Password NOT changed.");
- return;
+ /*
+ Make sure the player is allowed to do it
+ */
+ if(!checkPriv(player->getName(), "interact")) {
+ actionstream<<player->getName()<<" attempted to interact with "
+ <<pointed.dump()<<" without 'interact' privilege"
+ <<std::endl;
+ // Re-send block to revert change on client-side
+ RemoteClient *client = getClient(pkt->getPeerId());
+ // Digging completed -> under
+ if(action == 2) {
+ v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
+ client->SetBlockNotSent(blockpos);
+ }
+ // Placement -> above
+ if(action == 3) {
+ v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
+ client->SetBlockNotSent(blockpos);
}
+ return;
+ }
- infostream<<"Server: Client requests a password change from "
- <<"'"<<oldpwd<<"' to '"<<newpwd<<"'"<<std::endl;
+ /*
+ If something goes wrong, this player is to blame
+ */
+ RollbackScopeActor rollback_scope(m_rollback,
+ std::string("player:")+player->getName());
- std::string playername = player->getName();
+ /*
+ 0: start digging or punch object
+ */
+ if(action == 0) {
+ if(pointed.type == POINTEDTHING_NODE) {
+ /*
+ NOTE: This can be used in the future to check if
+ somebody is cheating, by checking the timing.
+ */
+ MapNode n(CONTENT_IGNORE);
+ bool pos_ok;
+ n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
+ if (pos_ok)
+ n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
- std::string checkpwd;
- m_script->getAuth(playername, &checkpwd, NULL);
+ if (!pos_ok) {
+ infostream << "Server: Not punching: Node not found."
+ << " Adding block to emerge queue."
+ << std::endl;
+ m_emerge->enqueueBlockEmerge(pkt->getPeerId(), getNodeBlockPos(p_above), false);
+ }
- 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;
+ if(n.getContent() != CONTENT_IGNORE)
+ m_script->node_on_punch(p_under, n, playersao, pointed);
+ // Cheat prevention
+ playersao->noCheatDigStart(p_under);
}
+ else if(pointed.type == POINTEDTHING_OBJECT) {
+ // Skip if object has been removed
+ if(pointed_object->m_removed)
+ return;
- bool success = m_script->setPassword(playername, newpwd);
- if(success){
- actionstream<<player->getName()<<" changes password"<<std::endl;
- SendChatMessage(peer_id, L"Password change successful.");
- } else {
- actionstream<<player->getName()<<" tries to change password but "
- <<"it fails"<<std::endl;
- SendChatMessage(peer_id, L"Password change failed or inavailable.");
+ actionstream<<player->getName()<<" punches object "
+ <<pointed.object_id<<": "
+ <<pointed_object->getDescription()<<std::endl;
+
+ ItemStack punchitem = playersao->getWieldedItem();
+ ToolCapabilities toolcap =
+ punchitem.getToolCapabilities(m_itemdef);
+ v3f dir = (pointed_object->getBasePosition() -
+ (player->getPosition() + player->getEyeOffset())
+ ).normalize();
+ float time_from_last_punch =
+ playersao->resetTimeFromLastPunch();
+ pointed_object->punch(dir, &toolcap, playersao,
+ time_from_last_punch);
}
- }
- else if(command == TOSERVER_PLAYERITEM)
- {
- if (datasize < 2+2)
- return;
- u16 item = readU16(&data[2]);
- playersao->setWieldIndex(item);
- }
- else if(command == TOSERVER_RESPAWN)
- {
- if(player->hp != 0 || !g_settings->getBool("enable_damage"))
- return;
+ } // action == 0
- RespawnPlayer(peer_id);
+ /*
+ 1: stop digging
+ */
+ else if(action == 1) {
+ } // action == 1
- actionstream<<player->getName()<<" respawns at "
- <<PP(player->getPosition()/BS)<<std::endl;
+ /*
+ 2: Digging completed
+ */
+ else if(action == 2) {
+ // Only digging of nodes
+ if(pointed.type == POINTEDTHING_NODE) {
+ bool pos_ok;
+ MapNode n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
+ if (!pos_ok) {
+ infostream << "Server: Not finishing digging: Node not found."
+ << " Adding block to emerge queue."
+ << std::endl;
+ m_emerge->enqueueBlockEmerge(pkt->getPeerId(), getNodeBlockPos(p_above), false);
+ }
- // ActiveObject is added to environment in AsyncRunStep after
- // the previous addition has been succesfully removed
- }
- else if(command == TOSERVER_INTERACT)
- {
- std::string datastring((char*)&data[2], datasize-2);
- std::istringstream is(datastring, std::ios_base::binary);
+ /* Cheat prevention */
+ bool is_valid_dig = true;
+ if(!isSingleplayer() && !g_settings->getBool("disable_anticheat")) {
+ v3s16 nocheat_p = playersao->getNoCheatDigPos();
+ float nocheat_t = playersao->getNoCheatDigTime();
+ playersao->noCheatDigEnd();
+ // If player didn't start digging this, ignore dig
+ if(nocheat_p != p_under) {
+ infostream << "Server: NoCheat: " << player->getName()
+ << " started digging "
+ << PP(nocheat_p) << " and completed digging "
+ << PP(p_under) << "; not digging." << std::endl;
+ is_valid_dig = false;
+ // Call callbacks
+ m_script->on_cheat(playersao, "finished_unknown_dig");
+ }
+ // Get player's wielded item
+ ItemStack playeritem;
+ InventoryList *mlist = playersao->getInventory()->getList("main");
+ if(mlist != NULL)
+ playeritem = mlist->getItem(playersao->getWieldIndex());
+ ToolCapabilities playeritem_toolcap =
+ playeritem.getToolCapabilities(m_itemdef);
+ // Get diggability and expected digging time
+ DigParams params = getDigParams(m_nodedef->get(n).groups,
+ &playeritem_toolcap);
+ // If can't dig, try hand
+ if(!params.diggable) {
+ const ItemDefinition &hand = m_itemdef->get("");
+ const ToolCapabilities *tp = hand.tool_capabilities;
+ if(tp)
+ params = getDigParams(m_nodedef->get(n).groups, tp);
+ }
+ // If can't dig, ignore dig
+ if(!params.diggable) {
+ infostream << "Server: NoCheat: " << player->getName()
+ << " completed digging " << PP(p_under)
+ << ", which is not diggable with tool. not digging."
+ << std::endl;
+ is_valid_dig = false;
+ // Call callbacks
+ m_script->on_cheat(playersao, "dug_unbreakable");
+ }
+ // Check digging time
+ // If already invalidated, we don't have to
+ if(!is_valid_dig) {
+ // Well not our problem then
+ }
+ // Clean and long dig
+ else if(params.time > 2.0 && nocheat_t * 1.2 > params.time) {
+ // All is good, but grab time from pool; don't care if
+ // it's actually available
+ playersao->getDigPool().grab(params.time);
+ }
+ // Short or laggy dig
+ // Try getting the time from pool
+ else if(playersao->getDigPool().grab(params.time)) {
+ // All is good
+ }
+ // Dig not possible
+ else {
+ infostream << "Server: NoCheat: " << player->getName()
+ << " completed digging " << PP(p_under)
+ << "too fast; not digging." << std::endl;
+ is_valid_dig = false;
+ // Call callbacks
+ m_script->on_cheat(playersao, "dug_too_fast");
+ }
+ }
- /*
- [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);
+ /* Actually dig node */
- verbosestream<<"TOSERVER_INTERACT: action="<<(int)action<<", item="
- <<item_i<<", pointed="<<pointed.dump()<<std::endl;
+ if(is_valid_dig && n.getContent() != CONTENT_IGNORE)
+ m_script->node_on_dig(p_under, n, playersao);
- if(player->hp == 0)
- {
- verbosestream<<"TOSERVER_INTERACT: "<<player->getName()
- <<" tried to interact, but is dead!"<<std::endl;
- return;
+ v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
+ RemoteClient *client = getClient(pkt->getPeerId());
+ // Send unusual result (that is, node not being removed)
+ if(m_env->getMap().getNodeNoEx(p_under).getContent() != CONTENT_AIR) {
+ // Re-send block to revert change on client-side
+ client->SetBlockNotSent(blockpos);
+ }
+ else {
+ client->ResendBlockIfOnWire(blockpos);
+ }
}
+ } // action == 2
- v3f player_pos = playersao->getLastGoodPosition();
+ /*
+ 3: place block or right-click object
+ */
+ else if(action == 3) {
+ ItemStack item = playersao->getWieldedItem();
- // Update wielded item
- playersao->setWieldIndex(item_i);
+ // Reset build time counter
+ if(pointed.type == POINTEDTHING_NODE &&
+ item.getDefinition(m_itemdef).type == ITEM_NODE)
+ getClient(pkt->getPeerId())->m_time_from_building = 0.0;
- // Get pointed to node (undefined if not POINTEDTYPE_NODE)
- v3s16 p_under = pointed.node_undersurface;
- v3s16 p_above = pointed.node_abovesurface;
+ if(pointed.type == POINTEDTHING_OBJECT) {
+ // Right click object
- // Get pointed to object (NULL if not POINTEDTYPE_OBJECT)
- ServerActiveObject *pointed_object = NULL;
- if(pointed.type == POINTEDTHING_OBJECT)
- {
- pointed_object = m_env->getActiveObject(pointed.object_id);
- if(pointed_object == NULL)
- {
- verbosestream<<"TOSERVER_INTERACT: "
- "pointed object is NULL"<<std::endl;
+ // Skip if object has been removed
+ if(pointed_object->m_removed)
return;
- }
- }
+ actionstream << player->getName() << " right-clicks object "
+ << pointed.object_id << ": "
+ << pointed_object->getDescription() << std::endl;
- 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;
+ // Do stuff
+ pointed_object->rightClick(playersao);
}
+ else if(m_script->item_OnPlace(
+ item, playersao, pointed)) {
+ // Placement was handled in lua
- /*
- Check that target is reasonably close
- (only when digging or placing things)
- */
- if(action == 0 || action == 2 || action == 3)
- {
- float d = player_pos.getDistanceFrom(pointed_pos_under);
- float max_d = BS * 14; // Just some large enough value
- if(d > max_d){
- actionstream<<"Player "<<player->getName()
- <<" tried to access "<<pointed.dump()
- <<" from too far: "
- <<"d="<<d<<", max_d="<<max_d
- <<". ignoring."<<std::endl;
- // Re-send block to revert change on client-side
- RemoteClient *client = getClient(peer_id);
- v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
- client->SetBlockNotSent(blockpos);
- // Call callbacks
- m_script->on_cheat(playersao, "interacted_too_far");
- // Do nothing else
- return;
- }
+ // Apply returned ItemStack
+ playersao->setWieldedItem(item);
}
- /*
- Make sure the player is allowed to do it
- */
- if(!checkPriv(player->getName(), "interact"))
- {
- actionstream<<player->getName()<<" attempted to interact with "
- <<pointed.dump()<<" without 'interact' privilege"
- <<std::endl;
- // Re-send block to revert change on client-side
- RemoteClient *client = getClient(peer_id);
- // Digging completed -> under
- if(action == 2){
- v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
- client->SetBlockNotSent(blockpos);
+ // If item has node placement prediction, always send the
+ // blocks to make sure the client knows what exactly happened
+ RemoteClient *client = getClient(pkt->getPeerId());
+ v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
+ v3s16 blockpos2 = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
+ if(item.getDefinition(m_itemdef).node_placement_prediction != "") {
+ client->SetBlockNotSent(blockpos);
+ if(blockpos2 != blockpos) {
+ client->SetBlockNotSent(blockpos2);
}
- // Placement -> above
- if(action == 3){
- v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
- client->SetBlockNotSent(blockpos);
+ }
+ else {
+ client->ResendBlockIfOnWire(blockpos);
+ if(blockpos2 != blockpos) {
+ client->ResendBlockIfOnWire(blockpos2);
}
- return;
}
+ } // action == 3
- /*
- If something goes wrong, this player is to blame
- */
- RollbackScopeActor rollback_scope(m_rollback,
- std::string("player:")+player->getName());
+ /*
+ 4: use
+ */
+ else if(action == 4) {
+ ItemStack item = playersao->getWieldedItem();
- /*
- 0: start digging or punch object
- */
- if(action == 0)
- {
- if(pointed.type == POINTEDTHING_NODE)
- {
- /*
- NOTE: This can be used in the future to check if
- somebody is cheating, by checking the timing.
- */
- MapNode n(CONTENT_IGNORE);
- bool pos_ok;
- n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
- if (pos_ok)
- n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
-
- if (!pos_ok) {
- infostream<<"Server: Not punching: Node not found."
- <<" Adding block to emerge queue."
- <<std::endl;
- m_emerge->enqueueBlockEmerge(peer_id, getNodeBlockPos(p_above), false);
- }
+ actionstream << player->getName() << " uses " << item.name
+ << ", pointing at " << pointed.dump() << std::endl;
- if(n.getContent() != CONTENT_IGNORE)
- m_script->node_on_punch(p_under, n, playersao, pointed);
- // Cheat prevention
- playersao->noCheatDigStart(p_under);
- }
- else if(pointed.type == POINTEDTHING_OBJECT)
- {
- // Skip if object has been removed
- if(pointed_object->m_removed)
- return;
-
- actionstream<<player->getName()<<" punches object "
- <<pointed.object_id<<": "
- <<pointed_object->getDescription()<<std::endl;
-
- ItemStack punchitem = playersao->getWieldedItem();
- ToolCapabilities toolcap =
- punchitem.getToolCapabilities(m_itemdef);
- v3f dir = (pointed_object->getBasePosition() -
- (player->getPosition() + player->getEyeOffset())
- ).normalize();
- float time_from_last_punch =
- playersao->resetTimeFromLastPunch();
- pointed_object->punch(dir, &toolcap, playersao,
- time_from_last_punch);
- }
+ if(m_script->item_OnUse(
+ item, playersao, pointed)) {
+ // Apply returned ItemStack
+ playersao->setWieldedItem(item);
+ }
- } // action == 0
+ } // action == 4
- /*
- 1: stop digging
- */
- else if(action == 1)
- {
- } // action == 1
- /*
- 2: Digging completed
- */
- else if(action == 2)
- {
- // Only digging of nodes
- if(pointed.type == POINTEDTHING_NODE)
- {
- bool pos_ok;
- MapNode n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
- if (!pos_ok) {
- infostream << "Server: Not finishing digging: Node not found."
- << " Adding block to emerge queue."
- << std::endl;
- m_emerge->enqueueBlockEmerge(peer_id, getNodeBlockPos(p_above), false);
- }
+ /*
+ Catch invalid actions
+ */
+ else {
+ infostream << "WARNING: Server: Invalid action "
+ << action << std::endl;
+ }
+}
- /* Cheat prevention */
- bool is_valid_dig = true;
- if(!isSingleplayer() && !g_settings->getBool("disable_anticheat"))
- {
- v3s16 nocheat_p = playersao->getNoCheatDigPos();
- float nocheat_t = playersao->getNoCheatDigTime();
- playersao->noCheatDigEnd();
- // If player didn't start digging this, ignore dig
- if(nocheat_p != p_under){
- infostream<<"Server: NoCheat: "<<player->getName()
- <<" started digging "
- <<PP(nocheat_p)<<" and completed digging "
- <<PP(p_under)<<"; not digging."<<std::endl;
- is_valid_dig = false;
- // Call callbacks
- m_script->on_cheat(playersao, "finished_unknown_dig");
- }
- // Get player's wielded item
- ItemStack playeritem;
- InventoryList *mlist = playersao->getInventory()->getList("main");
- if(mlist != NULL)
- playeritem = mlist->getItem(playersao->getWieldIndex());
- ToolCapabilities playeritem_toolcap =
- playeritem.getToolCapabilities(m_itemdef);
- // Get diggability and expected digging time
- DigParams params = getDigParams(m_nodedef->get(n).groups,
- &playeritem_toolcap);
- // If can't dig, try hand
- if(!params.diggable){
- const ItemDefinition &hand = m_itemdef->get("");
- const ToolCapabilities *tp = hand.tool_capabilities;
- if(tp)
- params = getDigParams(m_nodedef->get(n).groups, tp);
- }
- // If can't dig, ignore dig
- if(!params.diggable){
- infostream<<"Server: NoCheat: "<<player->getName()
- <<" completed digging "<<PP(p_under)
- <<", which is not diggable with tool. not digging."
- <<std::endl;
- is_valid_dig = false;
- // Call callbacks
- m_script->on_cheat(playersao, "dug_unbreakable");
- }
- // Check digging time
- // If already invalidated, we don't have to
- if(!is_valid_dig){
- // Well not our problem then
- }
- // Clean and long dig
- else if(params.time > 2.0 && nocheat_t * 1.2 > params.time){
- // All is good, but grab time from pool; don't care if
- // it's actually available
- playersao->getDigPool().grab(params.time);
- }
- // Short or laggy dig
- // Try getting the time from pool
- else if(playersao->getDigPool().grab(params.time)){
- // All is good
- }
- // Dig not possible
- else{
- infostream<<"Server: NoCheat: "<<player->getName()
- <<" completed digging "<<PP(p_under)
- <<"too fast; not digging."<<std::endl;
- is_valid_dig = false;
- // Call callbacks
- m_script->on_cheat(playersao, "dug_too_fast");
- }
- }
+void Server::handleCommand_RemovedSounds(ToServerPacket* pkt)
+{
+ u16 num;
+ *pkt >> num;
+ for(int k=0; k<num; k++) {
+ s32 id;
- /* Actually dig node */
+ *pkt >> id;
- if(is_valid_dig && n.getContent() != CONTENT_IGNORE)
- m_script->node_on_dig(p_under, n, playersao);
+ std::map<s32, ServerPlayingSound>::iterator i =
+ m_playing_sounds.find(id);
- v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
- RemoteClient *client = getClient(peer_id);
- // Send unusual result (that is, node not being removed)
- if(m_env->getMap().getNodeNoEx(p_under).getContent() != CONTENT_AIR)
- {
- // Re-send block to revert change on client-side
- client->SetBlockNotSent(blockpos);
- }
- else {
- client->ResendBlockIfOnWire(blockpos);
- }
- }
- } // action == 2
+ if(i == m_playing_sounds.end())
+ continue;
- /*
- 3: place block or right-click object
- */
- else if(action == 3)
- {
- ItemStack item = playersao->getWieldedItem();
+ ServerPlayingSound &psound = i->second;
+ psound.clients.erase(pkt->getPeerId());
+ if(psound.clients.empty())
+ m_playing_sounds.erase(i++);
+ }
+}
- // 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;
+void Server::handleCommand_NodeMetaFields(ToServerPacket* pkt)
+{
+ v3s16 p;
+ std::string formname;
+ u16 num;
- if(pointed.type == POINTEDTHING_OBJECT)
- {
- // Right click object
+ *pkt >> p >> formname >> num;
- // Skip if object has been removed
- if(pointed_object->m_removed)
- return;
+ std::map<std::string, std::string> fields;
+ for(int k=0; k<num; k++) {
+ std::string fieldname;
+ *pkt >> fieldname;
+ fields[fieldname] = pkt->readLongString();
+ }
- actionstream<<player->getName()<<" right-clicks object "
- <<pointed.object_id<<": "
- <<pointed_object->getDescription()<<std::endl;
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if(player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
- // Do stuff
- pointed_object->rightClick(playersao);
- }
- else if(m_script->item_OnPlace(
- item, playersao, pointed))
- {
- // Placement was handled in lua
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if(playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
- // Apply returned ItemStack
- playersao->setWieldedItem(item);
- }
+ // If something goes wrong, this player is to blame
+ RollbackScopeActor rollback_scope(m_rollback,
+ std::string("player:")+player->getName());
- // If item has node placement prediction, always send the
- // blocks to make sure the client knows what exactly happened
- RemoteClient *client = getClient(peer_id);
- v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
- v3s16 blockpos2 = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
- if(item.getDefinition(m_itemdef).node_placement_prediction != "") {
- client->SetBlockNotSent(blockpos);
- if(blockpos2 != blockpos) {
- client->SetBlockNotSent(blockpos2);
- }
- }
- else {
- client->ResendBlockIfOnWire(blockpos);
- if(blockpos2 != blockpos) {
- client->ResendBlockIfOnWire(blockpos2);
- }
- }
- } // action == 3
+ // Check the target node for rollback data; leave others unnoticed
+ RollbackNode rn_old(&m_env->getMap(), p, this);
- /*
- 4: use
- */
- else if(action == 4)
- {
- ItemStack item = playersao->getWieldedItem();
+ m_script->node_on_receive_fields(p, formname, fields, playersao);
- actionstream<<player->getName()<<" uses "<<item.name
- <<", pointing at "<<pointed.dump()<<std::endl;
+ // Report rollback data
+ RollbackNode rn_new(&m_env->getMap(), p, this);
+ if(rollback() && rn_new != rn_old){
+ RollbackAction action;
+ action.setSetNode(p, rn_old, rn_new);
+ rollback()->reportAction(action);
+ }
+}
- if(m_script->item_OnUse(
- item, playersao, pointed))
- {
- // Apply returned ItemStack
- playersao->setWieldedItem(item);
- }
+void Server::handleCommand_InventoryFields(ToServerPacket* pkt)
+{
+ std::string formname;
+ u16 num;
- } // action == 4
+ *pkt >> formname >> num;
+ std::map<std::string, std::string> fields;
+ for(int k=0; k<num; k++) {
+ std::string fieldname;
+ *pkt >> fieldname;
+ fields[fieldname] = pkt->readLongString();
+ }
- /*
- Catch invalid actions
- */
- else
- {
- infostream<<"WARNING: Server: Invalid action "
- <<action<<std::endl;
- }
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if(player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
}
- else if(command == TOSERVER_REMOVED_SOUNDS)
- {
- std::string datastring((char*)&data[2], datasize-2);
- std::istringstream is(datastring, std::ios_base::binary);
-
- int num = readU16(is);
- for(int k=0; k<num; k++){
- s32 id = readS32(is);
- std::map<s32, ServerPlayingSound>::iterator i =
- m_playing_sounds.find(id);
- if(i == m_playing_sounds.end())
- continue;
- ServerPlayingSound &psound = i->second;
- psound.clients.erase(peer_id);
- if(psound.clients.empty())
- m_playing_sounds.erase(i++);
+
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if(playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ m_script->on_playerReceiveFields(playersao, formname, fields);
+}
+
+inline void Server::handleCommand(ToServerPacket* pkt)
+{
+ const ToServerCommandHandler& opHandle = toServerCommandTable[pkt->getCommand()];
+ (this->*opHandle.handler)(pkt);
+}
+
+void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
+{
+ DSTACK(__FUNCTION_NAME);
+ // Environment is locked first.
+ JMutexAutoLock envlock(m_env_mutex);
+
+ ScopeProfiler sp(g_profiler, "Server::ProcessData");
+
+ try {
+ Address address = getPeerAddress(peer_id);
+ std::string addr_s = address.serializeString();
+
+ if(m_banmanager->isIpBanned(addr_s)) {
+ std::string ban_name = m_banmanager->getBanName(addr_s);
+ infostream << "Server: A banned client tried to connect from "
+ << addr_s << "; banned name was "
+ << ban_name << std::endl;
+ // This actually doesn't seem to transfer to the client
+ DenyAccess(peer_id, L"Your ip is banned. Banned name was "
+ + narrow_to_wide(ban_name));
+ return;
}
}
- else if(command == TOSERVER_NODEMETA_FIELDS)
- {
- std::string datastring((char*)&data[2], datasize-2);
- std::istringstream is(datastring, std::ios_base::binary);
-
- v3s16 p = readV3S16(is);
- std::string formname = deSerializeString(is);
- int num = readU16(is);
- std::map<std::string, std::string> fields;
- for(int k=0; k<num; k++){
- std::string fieldname = deSerializeString(is);
- std::string fieldvalue = deSerializeLongString(is);
- fields[fieldname] = fieldvalue;
+ catch(con::PeerNotFoundException &e) {
+ /*
+ * no peer for this packet found
+ * most common reason is peer timeout, e.g. peer didn't
+ * respond for some time, your server was overloaded or
+ * things like that.
+ */
+ infostream << "Server::ProcessData(): Cancelling: peer "
+ << peer_id << " not found" << std::endl;
+ return;
+ }
+
+ try {
+ if(datasize < 2)
+ return;
+
+ ToServerPacket* pkt = new ToServerPacket(data, datasize, peer_id);
+
+ ToServerCommand command = pkt->getCommand();
+
+ // Command must be handled into ToServerCommandHandler
+ if (command >= TOSERVER_NUM_MSG_TYPES) {
+ infostream << "Server: Ignoring unknown command "
+ << command << std::endl;
}
- // If something goes wrong, this player is to blame
- RollbackScopeActor rollback_scope(m_rollback,
- std::string("player:")+player->getName());
+ if (toServerCommandTable[command].state == TOSERVER_STATE_NOT_CONNECTED) {
+ handleCommand(pkt);
+ delete pkt;
+ return;
+ }
- // Check the target node for rollback data; leave others unnoticed
- RollbackNode rn_old(&m_env->getMap(), p, this);
+ u8 peer_ser_ver = getClient(peer_id, CS_InitDone)->serialization_version;
- m_script->node_on_receive_fields(p, formname, fields,playersao);
+ if(peer_ser_ver == SER_FMT_VER_INVALID) {
+ errorstream << "Server::ProcessData(): Cancelling: Peer"
+ " serialization format invalid or not initialized."
+ " Skipping incoming command=" << command << std::endl;
- // Report rollback data
- RollbackNode rn_new(&m_env->getMap(), p, this);
- if(rollback() && rn_new != rn_old){
- RollbackAction action;
- action.setSetNode(p, rn_old, rn_new);
- rollback()->reportAction(action);
+ delete pkt;
+ return;
}
- }
- else if(command == TOSERVER_INVENTORY_FIELDS)
- {
- std::string datastring((char*)&data[2], datasize-2);
- std::istringstream is(datastring, std::ios_base::binary);
-
- std::string formname = deSerializeString(is);
- int num = readU16(is);
- std::map<std::string, std::string> fields;
- for(int k=0; k<num; k++){
- std::string fieldname = deSerializeString(is);
- std::string fieldvalue = deSerializeLongString(is);
- fields[fieldname] = fieldvalue;
+
+ /* Handle commands related to client startup */
+ if (toServerCommandTable[command].state == TOSERVER_STATE_STARTUP) {
+ handleCommand(pkt);
+ delete pkt;
+ return;
}
- m_script->on_playerReceiveFields(playersao, formname, fields);
- }
- else
- {
- infostream<<"Server::ProcessData(): Ignoring "
- "unknown command "<<command<<std::endl;
- }
+ if (m_clients.getClientState(peer_id) < CS_Active) {
+ if (command == TOSERVER_PLAYERPOS) return;
+
+ errorstream << "Got packet command: " << command << " for peer id "
+ << peer_id << " but client isn't active yet. Dropping packet "
+ << std::endl;
+
+ delete pkt;
+ return;
+ }
+
+ handleCommand(pkt);
+ delete pkt;
- } //try
- catch(SendFailedException &e)
- {
- errorstream<<"Server::ProcessData(): SendFailedException: "
- <<"what="<<e.what()
- <<std::endl;
+ }
+ catch(SendFailedException &e) {
+ errorstream << "Server::ProcessData(): SendFailedException: "
+ << "what=" << e.what()
+ << std::endl;
}
}
@@ -2753,7 +2886,6 @@ void Server::setTimeOfDay(u32 time)
void Server::onMapEditEvent(MapEditEvent *event)
{
- //infostream<<"Server::onMapEditEvent()"<<std::endl;
if(m_ignore_map_edit_events)
return;
if(m_ignore_map_edit_events_area.contains(event->getArea()))
@@ -2764,13 +2896,10 @@ void Server::onMapEditEvent(MapEditEvent *event)
Inventory* Server::getInventory(const InventoryLocation &loc)
{
- switch(loc.type){
+ switch (loc.type) {
case InventoryLocation::UNDEFINED:
- {}
- break;
case InventoryLocation::CURRENT_PLAYER:
- {}
- break;
+ break;
case InventoryLocation::PLAYER:
{
Player *player = m_env->getPlayer(loc.name.c_str());
@@ -2781,7 +2910,7 @@ Inventory* Server::getInventory(const InventoryLocation &loc)
return NULL;
return playersao->getInventory();
}
- break;
+ break;
case InventoryLocation::NODEMETA:
{
NodeMetadata *meta = m_env->getMap().getNodeMetadata(loc.p);
@@ -2789,14 +2918,14 @@ Inventory* Server::getInventory(const InventoryLocation &loc)
return NULL;
return meta->getInventory();
}
- break;
+ break;
case InventoryLocation::DETACHED:
{
if(m_detached_inventories.count(loc.name) == 0)
return NULL;
return m_detached_inventories[loc.name];
}
- break;
+ break;
default:
assert(0);
}
@@ -2806,8 +2935,7 @@ void Server::setInventoryModified(const InventoryLocation &loc)
{
switch(loc.type){
case InventoryLocation::UNDEFINED:
- {}
- break;
+ break;
case InventoryLocation::PLAYER:
{
Player *player = m_env->getPlayer(loc.name.c_str());
@@ -2819,7 +2947,7 @@ void Server::setInventoryModified(const InventoryLocation &loc)
playersao->m_inventory_not_sent = true;
playersao->m_wielded_item_not_sent = true;
}
- break;
+ break;
case InventoryLocation::NODEMETA:
{
v3s16 blockpos = getNodeBlockPos(loc.p);
@@ -2830,12 +2958,12 @@ void Server::setInventoryModified(const InventoryLocation &loc)
setBlockNotSent(blockpos);
}
- break;
+ break;
case InventoryLocation::DETACHED:
{
sendDetachedInventory(loc.name,PEER_ID_INEXISTENT);
}
- break;
+ break;
default:
assert(0);
}
@@ -33,6 +33,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "util/thread.h"
#include "environment.h"
#include "clientiface.h"
+#include "network/toserverpacket.h"
#include <string>
#include <list>
#include <map>
@@ -187,6 +188,35 @@ public:
void AsyncRunStep(bool initial_step=false);
void Receive();
PlayerSAO* StageTwoClientInit(u16 peer_id);
+
+ /*
+ * Command Handlers
+ */
+
+ void handleCommand(ToServerPacket* pkt);
+
+ void handleCommand_Null(ToServerPacket* pkt) {};
+ void handleCommand_Deprecated(ToServerPacket* pkt);
+ void handleCommand_Init(ToServerPacket* pkt);
+ void handleCommand_Init2(ToServerPacket* pkt);
+ void handleCommand_RequestMedia(ToServerPacket* pkt);
+ void handleCommand_ReceivedMedia(ToServerPacket* pkt);
+ void handleCommand_ClientReady(ToServerPacket* pkt);
+ void handleCommand_GotBlocks(ToServerPacket* pkt);
+ void handleCommand_PlayerPos(ToServerPacket* pkt);
+ void handleCommand_DeletedBlocks(ToServerPacket* pkt);
+ void handleCommand_InventoryAction(ToServerPacket* pkt);
+ void handleCommand_ChatMessage(ToServerPacket* pkt);
+ void handleCommand_Damage(ToServerPacket* pkt);
+ void handleCommand_Breath(ToServerPacket* pkt);
+ void handleCommand_Password(ToServerPacket* pkt);
+ void handleCommand_PlayerItem(ToServerPacket* pkt);
+ void handleCommand_Respawn(ToServerPacket* pkt);
+ void handleCommand_Interact(ToServerPacket* pkt);
+ void handleCommand_RemovedSounds(ToServerPacket* pkt);
+ void handleCommand_NodeMetaFields(ToServerPacket* pkt);
+ void handleCommand_InventoryFields(ToServerPacket* pkt);
+
void ProcessData(u8 *data, u32 datasize, u16 peer_id);
// Environment must be locked when called
@@ -309,7 +339,7 @@ public:
bool showFormspec(const char *name, const std::string &formspec, const std::string &formname);
Map & getMap() { return m_env->getMap(); }
ServerEnvironment & getEnv() { return *m_env; }
-
+
u32 hudAdd(Player *player, HudElement *element);
bool hudRemove(Player *player, u32 id);
bool hudChange(Player *player, u32 id, HudElementStat stat, void *value);
@@ -320,13 +350,13 @@ public:
inline Address getPeerAddress(u16 peer_id)
{ return m_con.GetPeerAddress(peer_id); }
-
+
bool setLocalPlayerAnimations(Player *player, v2s32 animation_frames[4], f32 frame_speed);
bool setPlayerEyeOffset(Player *player, v3f first, v3f third);
bool setSky(Player *player, const video::SColor &bgcolor,
const std::string &type, const std::vector<std::string> ¶ms);
-
+
bool overrideDayNightRatio(Player *player, bool do_override,
float brightness);
@@ -379,7 +409,7 @@ private:
void SendSetSky(u16 peer_id, const video::SColor &bgcolor,
const std::string &type, const std::vector<std::string> ¶ms);
void SendOverrideDayNightRatio(u16 peer_id, bool do_override, float ratio);
-
+
/*
Send a node removal/addition event to all clients except ignore_id.
Additionally, if far_players!=NULL, players further away than
@@ -42,7 +42,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "util/numeric.h"
#include "util/serialize.h"
#include "noise.h" // PseudoRandom used for random data for compression
-#include "clientserver.h" // LATEST_PROTOCOL_VERSION
+#include "network/networkprotocol.h" // LATEST_PROTOCOL_VERSION
#include <algorithm>
/*