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Diffstat (limited to 'src/network/packethandlers/server.cpp')
| -rw-r--r-- | src/network/packethandlers/server.cpp | 1847 |
1 files changed, 0 insertions, 1847 deletions
diff --git a/src/network/packethandlers/server.cpp b/src/network/packethandlers/server.cpp deleted file mode 100644 index bb3a53463..000000000 --- a/src/network/packethandlers/server.cpp +++ /dev/null @@ -1,1847 +0,0 @@ -/* -Minetest -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 "server.h" -#include "log.h" - -#include "content_abm.h" -#include "content_sao.h" -#include "emerge.h" -#include "main.h" -#include "nodedef.h" -#include "player.h" -#include "rollback_interface.h" -#include "scripting_game.h" -#include "settings.h" -#include "tool.h" -#include "version.h" -#include "network/networkprotocol.h" -#include "network/serveropcodes.h" -#include "util/base64.h" -#include "util/pointedthing.h" -#include "util/serialize.h" - -void Server::handleCommand_Deprecated(NetworkPacket* pkt) -{ - infostream << "Server: " << toServerCommandTable[pkt->getCommand()].name - << " not supported anymore" << std::endl; -} - -void Server::handleCommand_Init(NetworkPacket* pkt) -{ - - if(pkt->getSize() < 1) - return; - - RemoteClient* client = getClient(pkt->getPeerId(), CS_Created); - - std::string addr_s; - try { - Address address = getPeerAddress(pkt->getPeerId()); - addr_s = address.serializeString(); - } - 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(): Canceling: peer " - << pkt->getPeerId() << " not found" << std::endl; - 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=" << pkt->getPeerId() << ")" << std::endl; - return; - } - - verbosestream << "Server: Got TOSERVER_INIT from " << addr_s << " (peer_id=" - << pkt->getPeerId() << ")" << std::endl; - - // Do not allow multiple players in simple singleplayer mode. - // This isn't a perfect way to do it, but will suffice for now - if (m_simple_singleplayer_mode && m_clients.getClientIDs().size() > 1) { - infostream << "Server: Not allowing another client (" << addr_s - << ") to connect in simple singleplayer mode" << std::endl; - DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_SINGLEPLAYER); - return; - } - - // First byte after command is maximum supported - // serialization version - u8 client_max; - u8 compression_modes; - u16 min_net_proto_version = 0; - u16 max_net_proto_version; - - *pkt >> client_max >> compression_modes >> min_net_proto_version - >> max_net_proto_version; - - 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_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(), SERVER_ACCESSDENIED_WRONG_VERSION); - return; - } - - client->setPendingSerializationVersion(deployed); - - /* - Read and check network protocol version - */ - - u16 net_proto_version = 0; - - // 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; - - // On this handler protocol version 25 is required - if (net_proto_version < 25 || - 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(), SERVER_ACCESSDENIED_WRONG_VERSION); - return; - } - - if (g_settings->getBool("strict_protocol_version_checking")) { - if (net_proto_version != LATEST_PROTOCOL_VERSION) { - actionstream << "Server: A mismatched (strict) client tried to " - << "connect from " << addr_s << std::endl; - DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_WRONG_VERSION); - return; - } - } - - // @TODO: check if we support same modes, but not required now - - client->setSupportedCompressionModes(compression_modes); - - m_clients.event(pkt->getPeerId(), CSE_Init); -} - -void Server::handleCommand_Auth(NetworkPacket* pkt) -{ - std::string addr_s; - try { - Address address = getPeerAddress(pkt->getPeerId()); - addr_s = address.serializeString(); - } - 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(): Canceling: peer " - << pkt->getPeerId() << " not found" << std::endl; - return; - } - - std::string playerName, playerPassword; - - *pkt >> playerName >> playerPassword; - - const char* playername = playerName.c_str(); - - if (playerName.size() > PLAYERNAME_SIZE) { - actionstream << "Server: Player with an too long name " - << "tried to connect from " << addr_s << std::endl; - DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_WRONG_NAME); - return; - } - - if (string_allowed(playerName, PLAYERNAME_ALLOWED_CHARS) == false) { - actionstream << "Server: Player with an invalid name " - << "tried to connect from " << addr_s << std::endl; - DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_WRONG_CHARS_IN_NAME); - return; - } - - if (!isSingleplayer() && strcasecmp(playername, "singleplayer") == 0) { - actionstream << "Server: Player with the name \"singleplayer\" " - << "tried to connect from " << addr_s << std::endl; - DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_WRONG_NAME); - return; - } - - { - std::string reason; - if(m_script->on_prejoinplayer(playername, addr_s, reason)) { - actionstream << "Server: Player with the name \"" << playerName << "\" " - << "tried to connect from " << addr_s << " " - << "but it was disallowed for the following reason: " - << reason << std::endl; - DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_CUSTOM_STRING, - narrow_to_wide(reason.c_str())); - return; - } - } - - if (playerPassword.size() > PASSWORD_SIZE) { - actionstream << "Server: Player with an too long password " - << "tried to connect from " << addr_s << std::endl; - DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_WRONG_PASSWORD); - return; - } - - infostream << "Server: New connection: \"" << playerName << "\" from " - << addr_s << " (peer_id=" << pkt->getPeerId() << ")" << std::endl; - - if(!base64_is_valid(playerPassword)){ - actionstream << "Server: " << playerName - << " supplied invalid password hash" << std::endl; - DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_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(pkt->getPeerId(), SERVER_ACCESSDENIED_TOO_MANY_USERS); - return; - } - - std::string checkpwd; // Password hash to check against - bool has_auth = m_script->getAuth(playername, &checkpwd, NULL); - - // If no authentication info exists for user, create it - if (!has_auth) { - if (!isSingleplayer() && - g_settings->getBool("disallow_empty_password") && - playerPassword.empty()) { - actionstream << "Server: " << playerName - << " supplied empty password" << std::endl; - DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_EMPTY_PASSWORD); - return; - } - std::wstring raw_default_password = - narrow_to_wide(g_settings->get("default_password")); - std::string initial_password = - translatePassword(playername, raw_default_password); - - // If default_password is empty, allow any initial password - if (raw_default_password.length() == 0) - initial_password = playerPassword.c_str(); - - m_script->createAuth(playername, initial_password); - } - - has_auth = m_script->getAuth(playername, &checkpwd, NULL); - - if(!has_auth) { - actionstream << "Server: " << playerName << " cannot be authenticated" - << " (auth handler does not work?)" << std::endl; - DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_SERVER_FAIL); - return; - } - - if(playerPassword.c_str() != checkpwd) { - actionstream << "Server: " << playerName << " supplied wrong password" - << std::endl; - DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_WRONG_PASSWORD); - return; - } - - RemotePlayer *player = - static_cast<RemotePlayer*>(m_env->getPlayer(playername)); - - if (player && player->peer_id != 0) { - errorstream << "Server: " << playername << ": Failed to emerge player" - << " (player allocated to an another client)" << std::endl; - DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_ALREADY_CONNECTED); - } - - m_clients.setPlayerName(pkt->getPeerId(), playername); - - /* - Answer with a TOCLIENT_INIT - */ - - NetworkPacket resp_pkt(TOCLIENT_AUTH_ACCEPT, 1 + 6 + 8 + 4, pkt->getPeerId()); - - resp_pkt << v3f(0,0,0) << (u64) m_env->getServerMap().getSeed() - << g_settings->getFloat("dedicated_server_step"); - - Send(&resp_pkt); - m_clients.event(pkt->getPeerId(), CSE_Init); -} - -void Server::handleCommand_Init_Legacy(NetworkPacket* pkt) -{ - // [0] u8 SER_FMT_VER_HIGHEST_READ - // [1] u8[20] player_name - // [21] 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(pkt->getPeerId()); - addr_s = address.serializeString(); - } - 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 " - << pkt->getPeerId() << " not found" << std::endl; - 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=" << pkt->getPeerId() << ")" << std::endl; - return; - } - - verbosestream << "Server: Got TOSERVER_INIT from " << addr_s << " (peer_id=" - << pkt->getPeerId() << ")" << std::endl; - - // Do not allow multiple players in simple singleplayer mode. - // This isn't a perfect way to do it, but will suffice for now - if (m_simple_singleplayer_mode && m_clients.getClientIDs().size() > 1) { - infostream << "Server: Not allowing another client (" << addr_s - << ") to connect in simple singleplayer mode" << std::endl; - DenyAccess_Legacy(pkt->getPeerId(), L"Running in simple singleplayer mode."); - return; - } - - // 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_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_Legacy(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; - } - - client->setPendingSerializationVersion(deployed); - - /* - Read and check network protocol version - */ - - 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_Legacy(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; - } - - 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_Legacy(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 (strict) is " - + narrow_to_wide(itos(LATEST_PROTOCOL_VERSION)) - + L", client's PROTOCOL_VERSION is " - + narrow_to_wide(itos(min_net_proto_version)) - + L"..." - + narrow_to_wide(itos(max_net_proto_version)) - ); - return; - } - } - - /* - Set up player - */ - char playername[PLAYERNAME_SIZE]; - unsigned int playername_length = 0; - for (; playername_length < PLAYERNAME_SIZE; playername_length++ ) { - playername[playername_length] = pkt->getChar(1+playername_length); - if (pkt->getChar(1+playername_length) == 0) - break; - } - - if (playername_length == PLAYERNAME_SIZE) { - actionstream << "Server: Player with name exceeding max length " - << "tried to connect from " << addr_s << std::endl; - DenyAccess_Legacy(pkt->getPeerId(), L"Name too long"); - return; - } - - - if (playername[0]=='\0') { - actionstream << "Server: Player with an empty name " - << "tried to connect from " << addr_s << std::endl; - DenyAccess_Legacy(pkt->getPeerId(), L"Empty name"); - return; - } - - if (string_allowed(playername, PLAYERNAME_ALLOWED_CHARS) == false) { - actionstream << "Server: Player with an invalid name " - << "tried to connect from " << addr_s << std::endl; - DenyAccess_Legacy(pkt->getPeerId(), L"Name contains unallowed characters"); - return; - } - - if (!isSingleplayer() && strcasecmp(playername, "singleplayer") == 0) { - actionstream << "Server: Player with the name \"singleplayer\" " - << "tried to connect from " << addr_s << std::endl; - DenyAccess_Legacy(pkt->getPeerId(), L"Name is not allowed"); - return; - } - - { - std::string reason; - if (m_script->on_prejoinplayer(playername, addr_s, reason)) { - actionstream << "Server: Player with the name \"" << playername << "\" " - << "tried to connect from " << addr_s << " " - << "but it was disallowed for the following reason: " - << reason << std::endl; - DenyAccess_Legacy(pkt->getPeerId(), narrow_to_wide(reason.c_str())); - return; - } - } - - infostream<<"Server: New connection: \""<<playername<<"\" from " - <<addr_s<<" (peer_id="<<pkt->getPeerId()<<")"<<std::endl; - - // 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 (u16 i = 0; i < PASSWORD_SIZE - 1; i++) { - given_password[i] = pkt->getChar(21 + i); - } - given_password[PASSWORD_SIZE - 1] = 0; - } - - if (!base64_is_valid(given_password)) { - actionstream << "Server: " << playername - << " supplied invalid password hash" << std::endl; - DenyAccess_Legacy(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_Legacy(pkt->getPeerId(), L"Too many users."); - return; - } - - std::string checkpwd; // Password hash to check against - bool has_auth = m_script->getAuth(playername, &checkpwd, NULL); - - // If no authentication info exists for user, create it - if (!has_auth) { - if (!isSingleplayer() && - g_settings->getBool("disallow_empty_password") && - std::string(given_password) == "") { - actionstream << "Server: " << playername - << " supplied empty password" << std::endl; - DenyAccess_Legacy(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 default_password is empty, allow any initial password - if (raw_default_password.length() == 0) - initial_password = given_password; - - m_script->createAuth(playername, initial_password); - } - - has_auth = m_script->getAuth(playername, &checkpwd, NULL); - - if (!has_auth) { - actionstream << "Server: " << playername << " cannot be authenticated" - << " (auth handler does not work?)" << std::endl; - DenyAccess_Legacy(pkt->getPeerId(), L"Not allowed to login"); - return; - } - - if (given_password != checkpwd) { - actionstream << "Server: " << playername << " supplied wrong password" - << std::endl; - DenyAccess_Legacy(pkt->getPeerId(), L"Wrong password"); - return; - } - - RemotePlayer *player = - static_cast<RemotePlayer*>(m_env->getPlayer(playername)); - - if (player && player->peer_id != 0) { - errorstream << "Server: " << playername << ": Failed to emerge player" - << " (player allocated to an another client)" << std::endl; - DenyAccess_Legacy(pkt->getPeerId(), L"Another client is connected with this " - L"name. If your client closed unexpectedly, try again in " - L"a minute."); - } - - m_clients.setPlayerName(pkt->getPeerId(), playername); - - /* - Answer with a TOCLIENT_INIT - */ - - NetworkPacket resp_pkt(TOCLIENT_INIT_LEGACY, 1 + 6 + 8 + 4, - pkt->getPeerId()); - - resp_pkt << (u8) deployed << (v3s16) floatToInt(v3f(0,0,0), BS) - << (u64) m_env->getServerMap().getSeed() - << g_settings->getFloat("dedicated_server_step"); - - Send(&resp_pkt); - m_clients.event(pkt->getPeerId(), CSE_Init); -} - -void Server::handleCommand_Init2(NetworkPacket* pkt) -{ - verbosestream << "Server: Got TOSERVER_INIT2 from " - << pkt->getPeerId() << std::endl; - - 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 - - /* - Send some initialization data - */ - - infostream << "Server: Sending content to " - << getPlayerName(pkt->getPeerId()) << std::endl; - - // Send player movement settings - SendMovement(pkt->getPeerId()); - - // Send item definitions - SendItemDef(pkt->getPeerId(), m_itemdef, protocol_version); - - // Send node definitions - SendNodeDef(pkt->getPeerId(), m_nodedef, protocol_version); - - 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 - - // 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!"); - } -} - -void Server::handleCommand_RequestMedia(NetworkPacket* pkt) -{ - std::vector<std::string> tosend; - u16 numfiles; - - *pkt >> numfiles; - - infostream << "Sending " << numfiles << " files to " - << getPlayerName(pkt->getPeerId()) << std::endl; - verbosestream << "TOSERVER_REQUEST_MEDIA: " << std::endl; - - for (u16 i = 0; i < numfiles; i++) { - std::string name; - - *pkt >> name; - - tosend.push_back(name); - verbosestream << "TOSERVER_REQUEST_MEDIA: requested file " - << name << std::endl; - } - - sendRequestedMedia(pkt->getPeerId(), tosend); -} - -void Server::handleCommand_ReceivedMedia(NetworkPacket* pkt) -{ -} - -void Server::handleCommand_ClientReady(NetworkPacket* pkt) -{ - u16 peer_id = pkt->getPeerId(); - u16 peer_proto_ver = getClient(peer_id, CS_InitDone)->net_proto_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; - } - - PlayerSAO* playersao = StageTwoClientInit(peer_id); - - if (playersao == NULL) { - errorstream - << "TOSERVER_CLIENT_READY stage 2 client init failed for peer_id: " - << peer_id << std::endl; - m_con.DisconnectPeer(peer_id); - return; - } - - - if (pkt->getSize() < 8) { - errorstream - << "TOSERVER_CLIENT_READY client sent inconsistent data, disconnecting peer_id: " - << peer_id << std::endl; - m_con.DisconnectPeer(peer_id); - return; - } - - u8 major_ver, minor_ver, patch_ver; - *pkt >> major_ver >> minor_ver >> patch_ver; - - 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(NetworkPacket* 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); - } -} - -void Server::handleCommand_PlayerPos(NetworkPacket* pkt) -{ - if (pkt->getSize() < 12 + 12 + 4 + 4) - return; - - 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 = modulo360f(pitch); - yaw = modulo360f(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; - } - - // If player is dead we don't care of this packet - if (player->isDead()) { - verbosestream << "TOSERVER_PLAYERPOS: " << player->getName() - << " is dead. Ignoring packet"; - return; - } - - 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; - } - - player->setPosition(position); - player->setSpeed(speed); - player->setPitch(pitch); - player->setYaw(yaw); - player->keyPressed = keyPressed; - player->control.up = (keyPressed & 1); - player->control.down = (keyPressed & 2); - player->control.left = (keyPressed & 4); - player->control.right = (keyPressed & 8); - player->control.jump = (keyPressed & 16); - player->control.aux1 = (keyPressed & 32); - player->control.sneak = (keyPressed & 64); - player->control.LMB = (keyPressed & 128); - player->control.RMB = (keyPressed & 256); - - if (playersao->checkMovementCheat()) { - // Call callbacks - m_script->on_cheat(playersao, "moved_too_fast"); - SendMovePlayer(pkt->getPeerId()); - } -} - -void Server::handleCommand_DeletedBlocks(NetworkPacket* 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 - ("DELETEDBLOCKS length is too short"); - v3s16 p; - *pkt >> p; - - client->SetBlockNotSent(p); - } -} - -void Server::handleCommand_InventoryAction(NetworkPacket* 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; - } - - 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; - } - - // If something goes wrong, this player is to blame - RollbackScopeActor rollback_scope(m_rollback, - std::string("player:")+player->getName()); - - /* - Note: Always set inventory not sent, to repair cases - where the client made a bad prediction. - */ - - /* - Handle restrictions and special cases of the move action - */ - if (a->getType() == IACTION_MOVE) { - IMoveAction *ma = (IMoveAction*)a; - - ma->from_inv.applyCurrentPlayer(player->getName()); - ma->to_inv.applyCurrentPlayer(player->getName()); - - setInventoryModified(ma->from_inv); - setInventoryModified(ma->to_inv); - - bool from_inv_is_current_player = - (ma->from_inv.type == InventoryLocation::PLAYER) && - (ma->from_inv.name == player->getName()); - - bool to_inv_is_current_player = - (ma->to_inv.type == InventoryLocation::PLAYER) && - (ma->to_inv.name == player->getName()); - - /* - Disable moving items out of craftpreview - */ - if (ma->from_list == "craftpreview") { - infostream << "Ignoring IMoveAction from " - << (ma->from_inv.dump()) << ":" << ma->from_list - << " to " << (ma->to_inv.dump()) << ":" << ma->to_list - << " because src is " << ma->from_list << std::endl; - delete a; - return; - } - - /* - Disable moving items into craftresult and craftpreview - */ - if (ma->to_list == "craftpreview" || ma->to_list == "craftresult") { - infostream << "Ignoring IMoveAction from " - << (ma->from_inv.dump()) << ":" << ma->from_list - << " to " << (ma->to_inv.dump()) << ":" << ma->to_list - << " because dst is " << ma->to_list << std::endl; - delete a; - return; - } - - // Disallow moving items in elsewhere than player's inventory - // if not allowed to interact - if (!checkPriv(player->getName(), "interact") && - (!from_inv_is_current_player || - !to_inv_is_current_player)) { - infostream << "Cannot move outside of player's inventory: " - << "No interact privilege" << std::endl; - delete a; - return; - } - } - /* - Handle restrictions and special cases of the drop action - */ - else if (a->getType() == IACTION_DROP) { - IDropAction *da = (IDropAction*)a; - - da->from_inv.applyCurrentPlayer(player->getName()); - - setInventoryModified(da->from_inv); - - /* - Disable dropping items out of craftpreview - */ - if (da->from_list == "craftpreview") { - infostream << "Ignoring IDropAction from " - << (da->from_inv.dump()) << ":" << da->from_list - << " because src is " << da->from_list << std::endl; - delete a; - return; - } - - // Disallow dropping items if not allowed to interact - if (!checkPriv(player->getName(), "interact")) { - delete a; - return; - } - } - /* - Handle restrictions and special cases of the craft action - */ - else if (a->getType() == IACTION_CRAFT) { - ICraftAction *ca = (ICraftAction*)a; - - ca->craft_inv.applyCurrentPlayer(player->getName()); - - setInventoryModified(ca->craft_inv); - - //bool craft_inv_is_current_player = - // (ca->craft_inv.type == InventoryLocation::PLAYER) && - // (ca->craft_inv.name == player->getName()); - - // Disallow crafting if not allowed to interact - if (!checkPriv(player->getName(), "interact")) { - infostream << "Cannot craft: " - << "No interact privilege" << std::endl; - delete a; - return; - } - } - - // Do the action - a->apply(this, playersao, this); - // Eat the action - delete a; -} - -void Server::handleCommand_ChatMessage(NetworkPacket* 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(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; - } - - // If something goes wrong, this player is to blame - RollbackScopeActor rollback_scope(m_rollback, - std::string("player:")+player->getName()); - - // Get player name of this client - std::wstring name = narrow_to_wide(player->getName()); - - // Run script hook - bool ate = m_script->on_chat_message(player->getName(), - wide_to_narrow(message)); - // If script ate the message, don't proceed - if (ate) - return; - - // Line to send to players - std::wstring line; - // Whether to send to the player that sent the line - bool send_to_sender_only = false; - - // Commands are implemented in Lua, so only catch invalid - // commands that were not "eaten" and send an error back - if (message[0] == L'/') { - message = message.substr(1); - send_to_sender_only = true; - if (message.length() == 0) - line += L"-!- Empty command"; - else - line += L"-!- Invalid command: " + str_split(message, L' ')[0]; - } - else { - if (checkPriv(player->getName(), "shout")) { - line += L"<"; - line += name; - line += L"> "; - line += message; - } else { - line += L"-!- You don't have permission to shout."; - send_to_sender_only = true; - } - } - - if (line != L"") - { - /* - Send the message to sender - */ - if (send_to_sender_only) { - SendChatMessage(pkt->getPeerId(), line); - } - /* - Send the message to others - */ - else { - actionstream << "CHAT: " << wide_to_narrow(line)<<std::endl; - - std::vector<u16> clients = m_clients.getClientIDs(); - - for (std::vector<u16>::iterator i = clients.begin(); - i != clients.end(); ++i) { - if (*i != pkt->getPeerId()) - SendChatMessage(*i, line); - } - } - } -} - -void Server::handleCommand_Damage(NetworkPacket* 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; - } - - 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; - } - - 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); - SendPlayerHPOrDie(playersao->getPeerID(), playersao->getHP() == 0); - } -} - -void Server::handleCommand_Breath(NetworkPacket* 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; - } - - /* - * If player is dead, we don't need to update the breath - * He is dead ! - */ - if (player->isDead()) { - verbosestream << "TOSERVER_BREATH: " << player->getName() - << " is dead. Ignoring packet"; - return; - } - - - 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; - } - - playersao->setBreath(breath); - SendPlayerBreath(pkt->getPeerId()); -} - -void Server::handleCommand_Password(NetworkPacket* pkt) -{ - errorstream << "PAssword packet size: " << pkt->getSize() << " size required: " << PASSWORD_SIZE * 2 << std::endl; - if ((pkt->getCommand() == TOSERVER_PASSWORD && pkt->getSize() < 4) || - pkt->getSize() != PASSWORD_SIZE * 2) - return; - - std::string oldpwd; - std::string newpwd; - - if (pkt->getCommand() == TOSERVER_PASSWORD) { - *pkt >> oldpwd >> newpwd; - } - // 13/03/15 - // Protocol v24 compat. Please remove in 1 year after - // client convergence to 0.4.13/0.5.x - else { - for (u16 i = 0; i < PASSWORD_SIZE - 1; i++) { - char c = pkt->getChar(i); - if (c == 0) - break; - oldpwd += c; - } - - for (u16 i = 0; i < PASSWORD_SIZE - 1; i++) { - char c = pkt->getChar(PASSWORD_SIZE + i); - if (c == 0) - break; - newpwd += c; - } - } - - 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; - } - - 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; - } - - infostream << "Server: Client requests a password change from " - << "'" << oldpwd << "' to '" << newpwd << "'" << std::endl; - - std::string playername = player->getName(); - - std::string checkpwd; - m_script->getAuth(playername, &checkpwd, NULL); - - if (oldpwd != checkpwd) { - infostream << "Server: invalid old password" << std::endl; - // Wrong old password supplied!! - SendChatMessage(pkt->getPeerId(), L"Invalid old password supplied. Password NOT changed."); - return; - } - - bool success = m_script->setPassword(playername, newpwd); - if (success) { - actionstream << player->getName() << " changes password" << std::endl; - SendChatMessage(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."); - } -} - -void Server::handleCommand_PlayerItem(NetworkPacket* pkt) -{ - if (pkt->getSize() < 2) - return; - - 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; - } - - 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; - } - - u16 item; - - *pkt >> item; - - playersao->setWieldIndex(item); -} - -void Server::handleCommand_Respawn(NetworkPacket* 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; - } - - if (!player->isDead()) - return; - - RespawnPlayer(pkt->getPeerId()); - - actionstream << player->getName() << " respawns at " - << PP(player->getPosition()/BS) << std::endl; - - // ActiveObject is added to environment in AsyncRunStep after - // the previous addition has been succesfully removed -} - -void Server::handleCommand_Interact(NetworkPacket* pkt) -{ - std::string datastring(pkt->getString(0), pkt->getSize()); - std::istringstream is(datastring, std::ios_base::binary); - - /* - [0] u16 command - [2] u8 action - [3] u16 item - [5] u32 length of the next item - [9] serialized PointedThing - actions: - 0: start digging (from undersurface) or use - 1: stop digging (all parameters ignored) - 2: digging completed - 3: place block or item (to abovesurface) - 4: use item - */ - u8 action = readU8(is); - u16 item_i = readU16(is); - std::istringstream tmp_is(deSerializeLongString(is), std::ios::binary); - PointedThing pointed; - pointed.deSerialize(tmp_is); - - verbosestream << "TOSERVER_INTERACT: action=" << (int)action << ", item=" - << item_i << ", pointed=" << pointed.dump() << std::endl; - - 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; - } - - 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; - } - - if (player->isDead()) { - verbosestream << "TOSERVER_INTERACT: " << player->getName() - << " is dead. Ignoring packet"; - return; - } - - v3f player_pos = playersao->getLastGoodPosition(); - - // Update wielded item - playersao->setWieldIndex(item_i); - - // Get pointed to node (undefined if not POINTEDTYPE_NODE) - v3s16 p_under = pointed.node_undersurface; - v3s16 p_above = pointed.node_abovesurface; - - // Get pointed to object (NULL if not POINTEDTYPE_OBJECT) - ServerActiveObject *pointed_object = NULL; - if (pointed.type == POINTEDTHING_OBJECT) { - pointed_object = m_env->getActiveObject(pointed.object_id); - if (pointed_object == NULL) { - verbosestream << "TOSERVER_INTERACT: " - "pointed object is NULL" << std::endl; - return; - } - - } - - v3f pointed_pos_under = player_pos; - v3f pointed_pos_above = player_pos; - if (pointed.type == POINTEDTHING_NODE) { - pointed_pos_under = intToFloat(p_under, BS); - pointed_pos_above = intToFloat(p_above, BS); - } - else if (pointed.type == POINTEDTHING_OBJECT) { - pointed_pos_under = pointed_object->getBasePosition(); - pointed_pos_above = pointed_pos_under; - } - - /* - Check that target is reasonably close - (only when digging or placing things) - */ - if (action == 0 || action == 2 || action == 3) { - float d = player_pos.getDistanceFrom(pointed_pos_under); - float max_d = BS * 14; // Just some large enough value - if (d > max_d) { - actionstream << "Player " << player->getName() - << " tried to access " << pointed.dump() - << " from too far: " - << "d=" << d <<", max_d=" << max_d - << ". ignoring." << std::endl; - // Re-send block to revert change on client-side - RemoteClient *client = getClient(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; - } - } - - /* - 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; - } - - /* - If something goes wrong, this player is to blame - */ - RollbackScopeActor rollback_scope(m_rollback, - std::string("player:")+player->getName()); - - /* - 0: start digging or punch object - */ - if (action == 0) { - if (pointed.type == POINTEDTHING_NODE) { - /* - NOTE: This can be used in the future to check if - somebody is cheating, by checking the timing. - */ - MapNode n(CONTENT_IGNORE); - bool pos_ok; - n = m_env->getMap().getNodeNoEx(p_under, &pos_ok); - if (pos_ok) - n = m_env->getMap().getNodeNoEx(p_under, &pos_ok); - - if (!pos_ok) { - infostream << "Server: Not punching: Node not found." - << " Adding block to emerge queue." - << std::endl; - m_emerge->enqueueBlockEmerge(pkt->getPeerId(), getNodeBlockPos(p_above), false); - } - - if (n.getContent() != CONTENT_IGNORE) - m_script->node_on_punch(p_under, n, playersao, pointed); - // Cheat prevention - playersao->noCheatDigStart(p_under); - } - else if (pointed.type == POINTEDTHING_OBJECT) { - // Skip if object has been removed - if (pointed_object->m_removed) - return; - - actionstream<<player->getName()<<" punches object " - <<pointed.object_id<<": " - <<pointed_object->getDescription()<<std::endl; - - ItemStack punchitem = playersao->getWieldedItem(); - ToolCapabilities toolcap = - punchitem.getToolCapabilities(m_itemdef); - v3f dir = (pointed_object->getBasePosition() - - (player->getPosition() + player->getEyeOffset()) - ).normalize(); - float time_from_last_punch = - playersao->resetTimeFromLastPunch(); - - s16 src_original_hp = pointed_object->getHP(); - s16 dst_origin_hp = playersao->getHP(); - - pointed_object->punch(dir, &toolcap, playersao, - time_from_last_punch); - - // If the object is a player and its HP changed - if (src_original_hp != pointed_object->getHP() && - pointed_object->getType() == ACTIVEOBJECT_TYPE_PLAYER) { - SendPlayerHPOrDie(((PlayerSAO*)pointed_object)->getPeerID(), - pointed_object->getHP() == 0); - } - - // If the puncher is a player and its HP changed - if (dst_origin_hp != playersao->getHP()) { - SendPlayerHPOrDie(playersao->getPeerID(), playersao->getHP() == 0); - } - } - - } // action == 0 - - /* - 1: stop digging - */ - else if (action == 1) { - } // action == 1 - - /* - 2: Digging completed - */ - else if (action == 2) { - // Only digging of nodes - if (pointed.type == POINTEDTHING_NODE) { - bool pos_ok; - MapNode n = m_env->getMap().getNodeNoEx(p_under, &pos_ok); - if (!pos_ok) { - infostream << "Server: Not finishing digging: Node not found." - << " Adding block to emerge queue." - << std::endl; - m_emerge->enqueueBlockEmerge(pkt->getPeerId(), getNodeBlockPos(p_above), false); - } - - /* Cheat prevention */ - bool is_valid_dig = true; - if (!isSingleplayer() && !g_settings->getBool("disable_anticheat")) { - v3s16 nocheat_p = playersao->getNoCheatDigPos(); - float nocheat_t = playersao->getNoCheatDigTime(); - playersao->noCheatDigEnd(); - // If player didn't start digging this, ignore dig - if (nocheat_p != p_under) { - infostream << "Server: NoCheat: " << player->getName() - << " started digging " - << PP(nocheat_p) << " and completed digging " - << PP(p_under) << "; not digging." << std::endl; - is_valid_dig = false; - // Call callbacks - m_script->on_cheat(playersao, "finished_unknown_dig"); - } - // Get player's wielded item - ItemStack playeritem; - InventoryList *mlist = playersao->getInventory()->getList("main"); - if (mlist != NULL) - playeritem = mlist->getItem(playersao->getWieldIndex()); - ToolCapabilities playeritem_toolcap = - playeritem.getToolCapabilities(m_itemdef); - // Get diggability and expected digging time - DigParams params = getDigParams(m_nodedef->get(n).groups, - &playeritem_toolcap); - // If can't dig, try hand - if (!params.diggable) { - const ItemDefinition &hand = m_itemdef->get(""); - const ToolCapabilities *tp = hand.tool_capabilities; - if (tp) - params = getDigParams(m_nodedef->get(n).groups, tp); - } - // If can't dig, ignore dig - if (!params.diggable) { - infostream << "Server: NoCheat: " << player->getName() - << " completed digging " << PP(p_under) - << ", which is not diggable with tool. not digging." - << std::endl; - is_valid_dig = false; - // Call callbacks - m_script->on_cheat(playersao, "dug_unbreakable"); - } - // Check digging time - // If already invalidated, we don't have to - if (!is_valid_dig) { - // Well not our problem then - } - // Clean and long dig - else if (params.time > 2.0 && nocheat_t * 1.2 > params.time) { - // All is good, but grab time from pool; don't care if - // it's actually available - playersao->getDigPool().grab(params.time); - } - // Short or laggy dig - // Try getting the time from pool - else if (playersao->getDigPool().grab(params.time)) { - // All is good - } - // Dig not possible - else { - infostream << "Server: NoCheat: " << player->getName() - << " completed digging " << PP(p_under) - << "too fast; not digging." << std::endl; - is_valid_dig = false; - // Call callbacks - m_script->on_cheat(playersao, "dug_too_fast"); - } - } - - /* Actually dig node */ - - if (is_valid_dig && n.getContent() != CONTENT_IGNORE) - m_script->node_on_dig(p_under, n, playersao); - - v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS)); - RemoteClient *client = getClient(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 - - /* - 3: place block or right-click object - */ - else if (action == 3) { - ItemStack item = playersao->getWieldedItem(); - - // Reset build time counter - if (pointed.type == POINTEDTHING_NODE && - item.getDefinition(m_itemdef).type == ITEM_NODE) - getClient(pkt->getPeerId())->m_time_from_building = 0.0; - - if (pointed.type == POINTEDTHING_OBJECT) { - // Right click object - - // Skip if object has been removed - if (pointed_object->m_removed) - return; - - actionstream << player->getName() << " right-clicks object " - << pointed.object_id << ": " - << pointed_object->getDescription() << std::endl; - - // Do stuff - pointed_object->rightClick(playersao); - } - else if (m_script->item_OnPlace( - item, playersao, pointed)) { - // Placement was handled in lua - - // Apply returned ItemStack - if (playersao->setWieldedItem(item)) { - SendInventory(playersao); - } - } - - // 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); - } - } - else { - client->ResendBlockIfOnWire(blockpos); - if (blockpos2 != blockpos) { - client->ResendBlockIfOnWire(blockpos2); - } - } - } // action == 3 - - /* - 4: use - */ - else if (action == 4) { - ItemStack item = playersao->getWieldedItem(); - - actionstream << player->getName() << " uses " << item.name - << ", pointing at " << pointed.dump() << std::endl; - - if (m_script->item_OnUse( - item, playersao, pointed)) { - // Apply returned ItemStack - playersao->setWieldedItem(item); - } - - } // action == 4 - - - /* - Catch invalid actions - */ - else { - infostream << "WARNING: Server: Invalid action " - << action << std::endl; - } -} - -void Server::handleCommand_RemovedSounds(NetworkPacket* pkt) -{ - u16 num; - *pkt >> num; - for (u16 k = 0; k < num; k++) { - s32 id; - - *pkt >> id; - - 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(pkt->getPeerId()); - if (psound.clients.empty()) - m_playing_sounds.erase(i++); - } -} - -void Server::handleCommand_NodeMetaFields(NetworkPacket* pkt) -{ - v3s16 p; - std::string formname; - u16 num; - - *pkt >> p >> formname >> num; - - std::map<std::string, std::string> fields; - for (u16 k = 0; k < num; k++) { - std::string fieldname; - *pkt >> fieldname; - fields[fieldname] = pkt->readLongString(); - } - - 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; - } - - 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; - } - - // If something goes wrong, this player is to blame - RollbackScopeActor rollback_scope(m_rollback, - std::string("player:")+player->getName()); - - // Check the target node for rollback data; leave others unnoticed - RollbackNode rn_old(&m_env->getMap(), p, this); - - m_script->node_on_receive_fields(p, formname, fields, playersao); - - // Report rollback data - RollbackNode rn_new(&m_env->getMap(), p, this); - if (rollback() && rn_new != rn_old) { - RollbackAction action; - action.setSetNode(p, rn_old, rn_new); - rollback()->reportAction(action); - } -} - -void Server::handleCommand_InventoryFields(NetworkPacket* pkt) -{ - std::string formname; - u16 num; - - *pkt >> formname >> num; - - std::map<std::string, std::string> fields; - for (u16 k = 0; k < num; k++) { - std::string fieldname; - *pkt >> fieldname; - fields[fieldname] = pkt->readLongString(); - } - - Player *player = m_env->getPlayer(pkt->getPeerId()); - if (player == NULL) { - errorstream << "Server::ProcessData(): Canceling: " - "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(): Canceling: " - "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); -} |