-
- /* 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);
-
- std::list<std::string> tosend;
- u16 numfiles = readU16(is);
-
- infostream<<"Sending "<<numfiles<<" files to "
- <<getPlayerName(peer_id)<<std::endl;
- verbosestream<<"TOSERVER_REQUEST_MEDIA: "<<std::endl;
-
- for(int i = 0; i < numfiles; i++) {
- std::string name = deSerializeString(is);
- tosend.push_back(name);
- verbosestream<<"TOSERVER_REQUEST_MEDIA: requested file "
- <<name<<std::endl;
- }
-
- sendRequestedMedia(peer_id, tosend);
- return;
- }
- else if(command == TOSERVER_RECEIVED_MEDIA) {
- 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);
- 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(datasize < 2+8) {
- errorstream
- << "TOSERVER_CLIENT_READY client sent inconsistent data, disconnecting peer_id: "
- << peer_id << std::endl;
- m_con.DisconnectPeer(peer_id);
- return;
- }
-
- m_clients.setClientVersion(
- peer_id,
- data[2], data[3], data[4],
- std::string((char*) &data[8],(u16) data[6]));
-
- m_clients.event(peer_id, CSE_SetClientReady);
- m_script->on_joinplayer(playersao);
-
- }
- else if(command == TOSERVER_GOTBLOCKS)
- {
- if(datasize < 2+1)
- return;
-
- /*
- [0] u16 command
- [2] u8 count
- [3] v3s16 pos_0
- [3+6] v3s16 pos_1
- ...
- */
-
- u16 count = data[2];
- for(u16 i=0; i<count; i++)
- {
- if((s16)datasize < 2+1+(i+1)*6)
- throw con::InvalidIncomingDataException
- ("GOTBLOCKS length is too short");
- v3s16 p = readV3S16(&data[2+1+i*6]);
- /*infostream<<"Server: GOTBLOCKS ("
- <<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
- RemoteClient *client = getClient(peer_id);
- client->GotBlock(p);
- }
- return;
- }
-
- 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;
- return;
- }
-
- Player *player = m_env->getPlayer(peer_id);
- if(player == NULL) {
- errorstream<<"Server::ProcessData(): Cancelling: "
- "No player for peer_id="<<peer_id
- << " disconnecting peer!" <<std::endl;
- m_con.DisconnectPeer(peer_id);
- 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(command == TOSERVER_PLAYERPOS)
- {
- if(datasize < 2+12+12+4+4)
- return;
-
- u32 start = 0;
- v3s32 ps = readV3S32(&data[start+2]);
- v3s32 ss = readV3S32(&data[start+2+12]);
- f32 pitch = (f32)readS32(&data[2+12+12]) / 100.0;
- f32 yaw = (f32)readS32(&data[2+12+12+4]) / 100.0;
- u32 keyPressed = 0;
- if(datasize >= 2+12+12+4+4+4)
- keyPressed = (u32)readU32(&data[2+12+12+4+4]);
- v3f position((f32)ps.X/100., (f32)ps.Y/100., (f32)ps.Z/100.);
- v3f speed((f32)ss.X/100., (f32)ss.Y/100., (f32)ss.Z/100.);
- pitch = wrapDegrees(pitch);
- yaw = wrapDegrees(yaw);
-
- player->setPosition(position);
- player->setSpeed(speed);
- player->setPitch(pitch);
- player->setYaw(yaw);
- player->keyPressed=keyPressed;
- player->control.up = (bool)(keyPressed&1);
- player->control.down = (bool)(keyPressed&2);
- player->control.left = (bool)(keyPressed&4);
- player->control.right = (bool)(keyPressed&8);
- player->control.jump = (bool)(keyPressed&16);
- player->control.aux1 = (bool)(keyPressed&32);
- player->control.sneak = (bool)(keyPressed&64);
- player->control.LMB = (bool)(keyPressed&128);
- player->control.RMB = (bool)(keyPressed&256);
-
- bool cheated = playersao->checkMovementCheat();
- if(cheated){
- // Call callbacks
- m_script->on_cheat(playersao, "moved_too_fast");
- }
-
- /*infostream<<"Server::ProcessData(): Moved player "<<peer_id<<" to "
- <<"("<<position.X<<","<<position.Y<<","<<position.Z<<")"
- <<" pitch="<<pitch<<" yaw="<<yaw<<std::endl;*/
- }
- else if(command == TOSERVER_DELETEDBLOCKS)
- {
- if(datasize < 2+1)
- return;
-
- /*
- [0] u16 command
- [2] u8 count
- [3] v3s16 pos_0
- [3+6] v3s16 pos_1
- ...
- */
-
- u16 count = data[2];
- for(u16 i=0; i<count; i++)
- {
- if((s16)datasize < 2+1+(i+1)*6)
- throw con::InvalidIncomingDataException
- ("DELETEDBLOCKS length is too short");
- v3s16 p = readV3S16(&data[2+1+i*6]);
- /*infostream<<"Server: DELETEDBLOCKS ("
- <<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
- RemoteClient *client = getClient(peer_id);
- client->SetBlockNotSent(p);
- }
- }
- else if(command == TOSERVER_CLICK_OBJECT)
- {
- infostream<<"Server: CLICK_OBJECT not supported anymore"<<std::endl;
- return;
- }
- else if(command == TOSERVER_CLICK_ACTIVEOBJECT)
- {
- infostream<<"Server: CLICK_ACTIVEOBJECT not supported anymore"<<std::endl;
- return;
- }
- else if(command == TOSERVER_GROUND_ACTION)
- {
- infostream<<"Server: GROUND_ACTION not supported anymore"<<std::endl;
- return;
-
- }
- else if(command == TOSERVER_RELEASE)
- {
- infostream<<"Server: RELEASE not supported anymore"<<std::endl;
- return;
- }
- else if(command == TOSERVER_SIGNTEXT)
- {
- infostream<<"Server: SIGNTEXT not supported anymore"
- <<std::endl;
- return;
- }
- else if(command == TOSERVER_SIGNNODETEXT)
- {
- infostream<<"Server: SIGNNODETEXT not supported anymore"
- <<std::endl;
- return;
- }
- else if(command == TOSERVER_INVENTORY_ACTION)
- {
- // Strip command and create a stream
- std::string datastring((char*)&data[2], datasize-2);
- verbosestream<<"TOSERVER_INVENTORY_ACTION: data="<<datastring<<std::endl;
- std::istringstream is(datastring, std::ios_base::binary);
- // Create an action
- InventoryAction *a = InventoryAction::deSerialize(is);
- if(a == NULL)
- {
- infostream<<"TOSERVER_INVENTORY_ACTION: "
- <<"InventoryAction::deSerialize() returned NULL"
- <<std::endl;
- return;
- }
-
- // If something goes wrong, this player is to blame
- RollbackScopeActor rollback_scope(m_rollback,
- std::string("player:")+player->getName());
-
- /*
- Note: Always set inventory not sent, to repair cases
- where the client made a bad prediction.
- */
-
- /*
- Handle restrictions and special cases of the move action
- */
- if(a->getType() == IACTION_MOVE)
- {
- IMoveAction *ma = (IMoveAction*)a;
-
- ma->from_inv.applyCurrentPlayer(player->getName());
- ma->to_inv.applyCurrentPlayer(player->getName());
-
- setInventoryModified(ma->from_inv);
- setInventoryModified(ma->to_inv);
-
- bool from_inv_is_current_player =
- (ma->from_inv.type == InventoryLocation::PLAYER) &&
- (ma->from_inv.name == player->getName());
-
- bool to_inv_is_current_player =
- (ma->to_inv.type == InventoryLocation::PLAYER) &&
- (ma->to_inv.name == player->getName());
-
- /*
- Disable moving items out of craftpreview
- */
- if(ma->from_list == "craftpreview")
- {
- infostream<<"Ignoring IMoveAction from "
- <<(ma->from_inv.dump())<<":"<<ma->from_list
- <<" to "<<(ma->to_inv.dump())<<":"<<ma->to_list
- <<" because src is "<<ma->from_list<<std::endl;
- delete a;
- return;
- }
-
- /*
- Disable moving items into craftresult and craftpreview
- */
- if(ma->to_list == "craftpreview" || ma->to_list == "craftresult")
- {
- infostream<<"Ignoring IMoveAction from "
- <<(ma->from_inv.dump())<<":"<<ma->from_list
- <<" to "<<(ma->to_inv.dump())<<":"<<ma->to_list
- <<" because dst is "<<ma->to_list<<std::endl;
- delete a;
- return;
- }
-
- // Disallow moving items in elsewhere than player's inventory
- // if not allowed to interact
- if(!checkPriv(player->getName(), "interact") &&
- (!from_inv_is_current_player ||
- !to_inv_is_current_player))
- {
- infostream<<"Cannot move outside of player's inventory: "
- <<"No interact privilege"<<std::endl;
- delete a;
- return;
- }
- }
- /*
- Handle restrictions and special cases of the drop action
- */
- else if(a->getType() == IACTION_DROP)
- {
- IDropAction *da = (IDropAction*)a;
-
- da->from_inv.applyCurrentPlayer(player->getName());
-
- setInventoryModified(da->from_inv);
-
- /*
- 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;
- }
- else if(command == TOSERVER_CHAT_MESSAGE)
- {
- /*
- u16 command
- u16 length
- wstring message
- */
- u8 buf[6];
- std::string datastring((char*)&data[2], datasize-2);
- std::istringstream is(datastring, std::ios_base::binary);
-
- // Read stuff
- is.read((char*)buf, 2);
- u16 len = readU16(buf);
-
- std::wstring message;
- for(u16 i=0; i<len; i++)
- {
- is.read((char*)buf, 2);
- message += (wchar_t)readU16(buf);
- }
-
- // If something goes wrong, this player is to blame
- RollbackScopeActor rollback_scope(m_rollback,
- std::string("player:")+player->getName());
-
- // Get player name of this client
- std::wstring name = narrow_to_wide(player->getName());
-
- // Run script hook
- bool ate = 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(peer_id, line);
- }
- /*
- Send the message to others
- */
- else
- {
- actionstream<<"CHAT: "<<wide_to_narrow(line)<<std::endl;
-
- std::list<u16> clients = m_clients.getClientIDs();
-
- for(std::list<u16>::iterator
- i = clients.begin();
- i != clients.end(); ++i)
- {
- if (*i != peer_id)
- SendChatMessage(*i, line);
- }
- }
- }
- }
- else if(command == TOSERVER_DAMAGE)
- {
- std::string datastring((char*)&data[2], datasize-2);
- std::istringstream is(datastring, std::ios_base::binary);
- u8 damage = readU8(is);
-
- if(g_settings->getBool("enable_damage"))
- {
- actionstream<<player->getName()<<" damaged by "
- <<(int)damage<<" hp at "<<PP(player->getPosition()/BS)
- <<std::endl;
-
- playersao->setHP(playersao->getHP() - damage);
-
- if(playersao->getHP() == 0 && playersao->m_hp_not_sent)
- DiePlayer(peer_id);
-
- if(playersao->m_hp_not_sent)
- SendPlayerHP(peer_id);
- }
- }
- else if(command == TOSERVER_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");
- }
- else if(command == TOSERVER_PASSWORD)
- {
- /*
- [0] u16 TOSERVER_PASSWORD
- [2] u8[28] old password
- [30] u8[28] new password
- */
-
- if(datasize != 2+PASSWORD_SIZE*2)
- return;
- /*char password[PASSWORD_SIZE];
- for(u32 i=0; i<PASSWORD_SIZE-1; i++)
- password[i] = data[2+i];
- password[PASSWORD_SIZE-1] = 0;*/
- std::string oldpwd;
- for(u32 i=0; i<PASSWORD_SIZE-1; i++)
- {
- char c = data[2+i];
- if(c == 0)
- break;
- oldpwd += c;
- }
- std::string newpwd;
- for(u32 i=0; i<PASSWORD_SIZE-1; i++)
- {
- char c = data[2+PASSWORD_SIZE+i];
- if(c == 0)
- break;
- newpwd += c;
- }
-
- if(!base64_is_valid(newpwd)){
- infostream<<"Server: "<<player->getName()<<" supplied invalid password hash"<<std::endl;
- // Wrong old password supplied!!
- SendChatMessage(peer_id, L"Invalid new password hash supplied. Password NOT changed.");
- return;
- }
-
- infostream<<"Server: Client requests a password change from "
- <<"'"<<oldpwd<<"' to '"<<newpwd<<"'"<<std::endl;
-
- std::string playername = player->getName();
-
- std::string checkpwd;
- m_script->getAuth(playername, &checkpwd, NULL);
-
- if(oldpwd != checkpwd)
- {
- infostream<<"Server: invalid old password"<<std::endl;
- // Wrong old password supplied!!
- SendChatMessage(peer_id, L"Invalid old password supplied. Password NOT changed.");
- return;
- }
-
- bool success = 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.");
- }
- }
- else if(command == TOSERVER_PLAYERITEM)
- {
- if (datasize < 2+2)
- return;
-
- u16 item = readU16(&data[2]);
- playersao->setWieldIndex(item);
- }
- else if(command == TOSERVER_RESPAWN)
- {
- if(player->hp != 0 || !g_settings->getBool("enable_damage"))
- return;
-
- RespawnPlayer(peer_id);
-
- actionstream<<player->getName()<<" respawns at "
- <<PP(player->getPosition()/BS)<<std::endl;
-
- // ActiveObject is added to environment in AsyncRunStep after
- // the previous addition has been succesfully removed
- }
- else if(command == TOSERVER_INTERACT)
- {
- std::string datastring((char*)&data[2], datasize-2);
- std::istringstream is(datastring, std::ios_base::binary);
-
- /*
- [0] u16 command
- [2] u8 action
- [3] u16 item
- [5] u32 length of the next item
- [9] serialized PointedThing
- actions:
- 0: start digging (from undersurface) or use
- 1: stop digging (all parameters ignored)
- 2: digging completed
- 3: place block or item (to abovesurface)
- 4: use item
- */
- u8 action = readU8(is);
- u16 item_i = readU16(is);
- std::istringstream tmp_is(deSerializeLongString(is), std::ios::binary);
- PointedThing pointed;
- pointed.deSerialize(tmp_is);
-
- verbosestream<<"TOSERVER_INTERACT: action="<<(int)action<<", item="
- <<item_i<<", pointed="<<pointed.dump()<<std::endl;
-
- if(player->hp == 0)
- {
- verbosestream<<"TOSERVER_INTERACT: "<<player->getName()
- <<" tried to interact, but is dead!"<<std::endl;
- return;
- }
-
- v3f player_pos = playersao->getLastGoodPosition();
-
- // Update wielded item
- playersao->setWieldIndex(item_i);
-
- // Get pointed to node (undefined if not POINTEDTYPE_NODE)
- v3s16 p_under = pointed.node_undersurface;
- v3s16 p_above = pointed.node_abovesurface;
-
- // Get pointed to object (NULL if not POINTEDTYPE_OBJECT)
- ServerActiveObject *pointed_object = NULL;
- if(pointed.type == POINTEDTHING_OBJECT)
- {
- pointed_object = m_env->getActiveObject(pointed.object_id);
- if(pointed_object == NULL)
- {
- verbosestream<<"TOSERVER_INTERACT: "
- "pointed object is NULL"<<std::endl;
- return;
- }
-
- }
-
- v3f pointed_pos_under = player_pos;
- v3f pointed_pos_above = player_pos;
- if(pointed.type == POINTEDTHING_NODE)
- {
- pointed_pos_under = intToFloat(p_under, BS);
- pointed_pos_above = intToFloat(p_above, BS);
- }
- else if(pointed.type == POINTEDTHING_OBJECT)
- {
- pointed_pos_under = pointed_object->getBasePosition();
- pointed_pos_above = pointed_pos_under;
- }
-
- /*
- Check that target is reasonably close
- (only when digging or placing things)
- */
- if(action == 0 || action == 2 || action == 3)
- {
- float d = player_pos.getDistanceFrom(pointed_pos_under);
- float max_d = BS * 14; // Just some large enough value
- if(d > max_d){
- actionstream<<"Player "<<player->getName()
- <<" tried to access "<<pointed.dump()
- <<" from too far: "
- <<"d="<<d<<", max_d="<<max_d
- <<". ignoring."<<std::endl;
- // Re-send block to revert change on client-side
- RemoteClient *client = getClient(peer_id);
- v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
- client->SetBlockNotSent(blockpos);
- // 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(peer_id);
- // Digging completed -> under
- if(action == 2){
- v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
- client->SetBlockNotSent(blockpos);
- }
- // Placement -> above
- if(action == 3){
- v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
- client->SetBlockNotSent(blockpos);
- }
- return;
- }
-
- /*
- If something goes wrong, this player is to blame
- */
- RollbackScopeActor rollback_scope(m_rollback,
- std::string("player:")+player->getName());
-
- /*
- 0: start digging or punch object
- */
- if(action == 0)
- {
- if(pointed.type == POINTEDTHING_NODE)
- {
- /*
- NOTE: This can be used in the future to check if
- somebody is cheating, by checking the timing.
- */
- MapNode n(CONTENT_IGNORE);
- try
- {
- n = m_env->getMap().getNode(p_under);
- }
- catch(InvalidPositionException &e)
- {
- infostream<<"Server: Not punching: Node not found."
- <<" Adding block to emerge queue."
- <<std::endl;
- m_emerge->enqueueBlockEmerge(peer_id, 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();
- pointed_object->punch(dir, &toolcap, playersao,
- time_from_last_punch);
- }
-
- } // action == 0
-
- /*
- 1: stop digging
- */
- else if(action == 1)
- {
- } // action == 1
-
- /*
- 2: Digging completed
- */
- else if(action == 2)
- {
- // Only digging of nodes
- if(pointed.type == POINTEDTHING_NODE)
- {
- MapNode n(CONTENT_IGNORE);
- try
- {
- n = m_env->getMap().getNode(p_under);
- }
- catch(InvalidPositionException &e)
- {
- infostream<<"Server: Not finishing digging: Node not found."
- <<" Adding block to emerge queue."
- <<std::endl;
- m_emerge->enqueueBlockEmerge(peer_id, 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(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
-
- /*
- 3: place block or right-click object
- */
- else if(action == 3)
- {
- ItemStack item = playersao->getWieldedItem();
-
- // Reset build time counter
- if(pointed.type == POINTEDTHING_NODE &&
- item.getDefinition(m_itemdef).type == ITEM_NODE)
- getClient(peer_id)->m_time_from_building = 0.0;
-
- if(pointed.type == POINTEDTHING_OBJECT)
- {
- // Right click object
-
- // Skip if object has been removed
- if(pointed_object->m_removed)
- return;
-
- actionstream<<player->getName()<<" right-clicks object "
- <<pointed.object_id<<": "
- <<pointed_object->getDescription()<<std::endl;
-
- // Do stuff
- pointed_object->rightClick(playersao);
- }
- else if(m_script->item_OnPlace(
- item, playersao, pointed))
- {
- // Placement was handled in lua
-
- // Apply returned ItemStack
- playersao->setWieldedItem(item);
- }
-
- // 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
-
- /*
- 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;
- }
- }
- else if(command == TOSERVER_REMOVED_SOUNDS)
- {
- std::string datastring((char*)&data[2], datasize-2);
- std::istringstream is(datastring, std::ios_base::binary);
-
- int num = readU16(is);
- for(int k=0; k<num; k++){
- s32 id = readS32(is);
- std::map<s32, ServerPlayingSound>::iterator i =
- m_playing_sounds.find(id);
- if(i == m_playing_sounds.end())
- continue;
- ServerPlayingSound &psound = i->second;
- psound.clients.erase(peer_id);
- if(psound.clients.size() == 0)
- m_playing_sounds.erase(i++);
- }
- }
- else if(command == TOSERVER_NODEMETA_FIELDS)
- {
- std::string datastring((char*)&data[2], datasize-2);
- std::istringstream is(datastring, std::ios_base::binary);
-
- v3s16 p = readV3S16(is);
- std::string formname = deSerializeString(is);
- int num = readU16(is);
- std::map<std::string, std::string> fields;
- for(int k=0; k<num; k++){
- std::string fieldname = deSerializeString(is);
- std::string fieldvalue = deSerializeLongString(is);
- fields[fieldname] = fieldvalue;
- }
-
- // If something goes wrong, this player is to blame
- RollbackScopeActor rollback_scope(m_rollback,
- std::string("player:")+player->getName());
-
- // Check the target node for rollback data; leave others unnoticed
- RollbackNode rn_old(&m_env->getMap(), p, this);
-
- 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);
- }
- }
- 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;
- }
-
- m_script->on_playerReceiveFields(playersao, formname, fields);
- }
- else
- {
- infostream<<"Server::ProcessData(): Ignoring "
- "unknown command "<<command<<std::endl;
- }
-
- } //try
- catch(SendFailedException &e)
- {
- errorstream<<"Server::ProcessData(): SendFailedException: "
- <<"what="<<e.what()
- <<std::endl;