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https://github.com/DarkflameUniverse/DarkflameServer.git
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e9ff5f402d
World packet 120 (UgcDownloadFailed: resType u32, blueprint ID, status u32, character ID; lu_packets, 31 bytes after the 0x53 as the client sends it) was logged as an unknown world packet. The client sends it from LWOResMgr2Interface::FinishResourceRequest (0x0105e5c0) for every blueprint file (player model, car or rocket build) whose request did not end with HTTP 200, including files it did not download at all (status 0). Live: 1525 packets, 1520 with status 0 (all four file types, around load and FetchModelMetadataRequest), 5 with 404. Live sent nothing back and the sessions carried on. The logout the client does on failed UGC downloads (NET_DISCONNECT_FAILED_DOWNLOAD_UGC, MainThread_LogoutDueToConnectionFailures 0x0102b9c0) is its own decision after repeated connection failures to the UGC HTTP server; there is no server message that prevents or triggers it. So the server only records it: a log line for an HTTP failure (for finding missing files on the UGC server), a debug line for status 0. MessageType::World gains UGC_DOWNLOAD_FAILED = 120 (appended; the magic enum range goes to 120). Check in game: nothing changes for the player. With a property that has models, load it: the world server log has no "Unknown world packet 120" lines; if a model file is missing on the UGC server there is one "failed to download blueprint" line naming it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
378 lines
12 KiB
C++
378 lines
12 KiB
C++
#include "WorldPackets.h"
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#include "dCommonVars.h"
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#include <algorithm>
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namespace {
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// Copies every unread bit of from into to.
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bool ReadRest(RakNet::BitStream& from, RakNet::BitStream& to) {
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to.Reset();
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return from.Read(to, from.GetNumberOfUnreadBits());
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}
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void WriteAll(RakNet::BitStream& to, const RakNet::BitStream& from) {
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auto& nonConst = const_cast<RakNet::BitStream&>(from); // GetData is not const in RakNet
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to.WriteBits(nonConst.GetData(), nonConst.GetNumberOfBitsUsed(), false);
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}
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}
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namespace WorldPackets {
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void Validation::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(username);
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bitStream.Write(sessionKey);
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bitStream.Write(fdbChecksum);
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}
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bool Validation::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(username));
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// sometimes client puts a null terminator at the end of the checksum and sometimes doesn't, weird
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VALIDATE_READ(bitStream.Read(sessionKey));
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VALIDATE_READ(bitStream.Read(fdbChecksum));
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return true;
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}
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void CharacterCreateRequest::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(name);
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bitStream.Write(firstNameIndex);
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bitStream.Write(middleNameIndex);
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bitStream.Write(lastNameIndex);
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for (const auto byte : unknown) bitStream.Write(byte);
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bitStream.Write(shirtColor);
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bitStream.Write(shirtStyle);
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bitStream.Write(pantsColor);
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bitStream.Write(hairStyle);
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bitStream.Write(hairColor);
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bitStream.Write(leftHand);
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bitStream.Write(rightHand);
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bitStream.Write(eyebrows);
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bitStream.Write(eyes);
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bitStream.Write(mouth);
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}
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bool CharacterCreateRequest::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(name));
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VALIDATE_READ(bitStream.Read(firstNameIndex));
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VALIDATE_READ(bitStream.Read(middleNameIndex));
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VALIDATE_READ(bitStream.Read(lastNameIndex));
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for (auto& byte : unknown) VALIDATE_READ(bitStream.Read(byte));
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VALIDATE_READ(bitStream.Read(shirtColor));
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VALIDATE_READ(bitStream.Read(shirtStyle));
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VALIDATE_READ(bitStream.Read(pantsColor));
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VALIDATE_READ(bitStream.Read(hairStyle));
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VALIDATE_READ(bitStream.Read(hairColor));
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VALIDATE_READ(bitStream.Read(leftHand));
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VALIDATE_READ(bitStream.Read(rightHand));
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VALIDATE_READ(bitStream.Read(eyebrows));
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VALIDATE_READ(bitStream.Read(eyes));
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VALIDATE_READ(bitStream.Read(mouth));
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return true;
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}
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void CharacterLoginRequest::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(playerID);
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}
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bool CharacterLoginRequest::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(playerID));
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return true;
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}
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void GameMessage::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(objectID);
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bitStream.Write(messageID);
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WriteAll(bitStream, data);
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}
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bool GameMessage::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(objectID));
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VALIDATE_READ(bitStream.Read(messageID));
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VALIDATE_READ(ReadRest(bitStream, data));
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return true;
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}
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void CharacterDeleteRequest::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(objectID);
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}
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bool CharacterDeleteRequest::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(objectID));
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return true;
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}
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void CharacterRenameRequest::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(objectID);
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bitStream.Write(name);
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}
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bool CharacterRenameRequest::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(objectID));
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VALIDATE_READ(bitStream.Read(name));
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return true;
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}
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void LevelLoadComplete::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(mapID);
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bitStream.Write(instanceID);
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bitStream.Write(cloneID);
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}
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bool LevelLoadComplete::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(mapID));
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VALIDATE_READ(bitStream.Read(instanceID));
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VALIDATE_READ(bitStream.Read(cloneID));
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return true;
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}
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void PositionUpdate::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(update.position.x);
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bitStream.Write(update.position.y);
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bitStream.Write(update.position.z);
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bitStream.Write(update.rotation.x);
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bitStream.Write(update.rotation.y);
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bitStream.Write(update.rotation.z);
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bitStream.Write(update.rotation.w);
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bitStream.Write(update.onGround);
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bitStream.Write(update.onRail);
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bitStream.Write(hasVelocity);
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if (hasVelocity) {
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bitStream.Write(update.velocity.x);
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bitStream.Write(update.velocity.y);
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bitStream.Write(update.velocity.z);
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}
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bitStream.Write(hasAngularVelocity);
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if (hasAngularVelocity) {
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bitStream.Write(update.angularVelocity.x);
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bitStream.Write(update.angularVelocity.y);
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bitStream.Write(update.angularVelocity.z);
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}
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bitStream.Write(hasLocalSpaceInfo);
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if (hasLocalSpaceInfo) {
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bitStream.Write(update.localSpaceInfo.objectId);
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bitStream.Write(update.localSpaceInfo.position.x);
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bitStream.Write(update.localSpaceInfo.position.y);
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bitStream.Write(update.localSpaceInfo.position.z);
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bitStream.Write(hasLinearVelocity);
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if (hasLinearVelocity) {
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bitStream.Write(update.localSpaceInfo.linearVelocity.x);
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bitStream.Write(update.localSpaceInfo.linearVelocity.y);
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bitStream.Write(update.localSpaceInfo.linearVelocity.z);
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}
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}
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bitStream.Write(hasRemoteInputInfo);
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if (hasRemoteInputInfo) {
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bitStream.Write(update.remoteInputInfo.m_RemoteInputX);
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bitStream.Write(update.remoteInputInfo.m_RemoteInputY);
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bitStream.Write(update.remoteInputInfo.m_IsPowersliding);
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bitStream.Write(update.remoteInputInfo.m_IsModified);
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}
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}
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bool PositionUpdate::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(update.position.x));
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VALIDATE_READ(bitStream.Read(update.position.y));
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VALIDATE_READ(bitStream.Read(update.position.z));
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VALIDATE_READ(bitStream.Read(update.rotation.x));
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VALIDATE_READ(bitStream.Read(update.rotation.y));
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VALIDATE_READ(bitStream.Read(update.rotation.z));
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VALIDATE_READ(bitStream.Read(update.rotation.w));
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VALIDATE_READ(bitStream.Read(update.onGround));
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VALIDATE_READ(bitStream.Read(update.onRail));
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VALIDATE_READ(bitStream.Read(hasVelocity));
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if (hasVelocity) {
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VALIDATE_READ(bitStream.Read(update.velocity.x));
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VALIDATE_READ(bitStream.Read(update.velocity.y));
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VALIDATE_READ(bitStream.Read(update.velocity.z));
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}
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VALIDATE_READ(bitStream.Read(hasAngularVelocity));
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if (hasAngularVelocity) {
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VALIDATE_READ(bitStream.Read(update.angularVelocity.x));
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VALIDATE_READ(bitStream.Read(update.angularVelocity.y));
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VALIDATE_READ(bitStream.Read(update.angularVelocity.z));
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}
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// The last two sections may be missing entirely (DLU has always accepted that)
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hasLocalSpaceInfo = false;
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hasLinearVelocity = false;
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if (bitStream.Read(hasLocalSpaceInfo) && hasLocalSpaceInfo) {
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VALIDATE_READ(bitStream.Read(update.localSpaceInfo.objectId));
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VALIDATE_READ(bitStream.Read(update.localSpaceInfo.position.x));
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VALIDATE_READ(bitStream.Read(update.localSpaceInfo.position.y));
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VALIDATE_READ(bitStream.Read(update.localSpaceInfo.position.z));
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if (bitStream.Read(hasLinearVelocity) && hasLinearVelocity) {
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VALIDATE_READ(bitStream.Read(update.localSpaceInfo.linearVelocity.x));
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VALIDATE_READ(bitStream.Read(update.localSpaceInfo.linearVelocity.y));
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VALIDATE_READ(bitStream.Read(update.localSpaceInfo.linearVelocity.z));
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}
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}
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hasRemoteInputInfo = false;
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if (bitStream.Read(hasRemoteInputInfo) && hasRemoteInputInfo) {
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VALIDATE_READ(bitStream.Read(update.remoteInputInfo.m_RemoteInputX));
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VALIDATE_READ(bitStream.Read(update.remoteInputInfo.m_RemoteInputY));
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VALIDATE_READ(bitStream.Read(update.remoteInputInfo.m_IsPowersliding));
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VALIDATE_READ(bitStream.Read(update.remoteInputInfo.m_IsModified));
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}
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return true;
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}
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void MailPacket::Serialize(RakNet::BitStream& bitStream) const {
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WriteAll(bitStream, data);
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}
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bool MailPacket::Deserialize(RakNet::BitStream& bitStream) {
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return ReadRest(bitStream, data);
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}
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void RoutePacket::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(size);
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bitStream.Write(routedService);
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bitStream.Write(routedMessageID);
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bitStream.Write(padding);
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for (const auto byte : routedData) bitStream.Write(byte);
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}
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bool RoutePacket::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(size));
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VALIDATE_READ(bitStream.Read(routedService));
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VALIDATE_READ(bitStream.Read(routedMessageID));
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VALIDATE_READ(bitStream.Read(padding));
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routedData.resize(BITS_TO_BYTES(bitStream.GetNumberOfUnreadBits()));
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if (!routedData.empty()) VALIDATE_READ(bitStream.ReadBits(routedData.data(), BYTES_TO_BITS(routedData.size()), true));
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return true;
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}
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ChatPackets::RoutedFromClient RoutePacket::ToChat(const LWOOBJID senderID) const {
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constexpr size_t ROUTED_DATA_SKIP = 4;
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ChatPackets::RoutedFromClient routed(static_cast<uint8_t>(routedMessageID & 0xFF));
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routed.senderID = senderID;
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for (size_t i = ROUTED_DATA_SKIP; i - ROUTED_DATA_SKIP < size && i < routedData.size(); ++i) {
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routed.data.push_back(routedData[i]);
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}
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return routed;
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}
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void StringCheck::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(chatLevel);
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bitStream.Write(requestID);
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auto fixedReceiver = receiver;
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fixedReceiver.resize(42);
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bitStream.Write(fixedReceiver);
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bitStream.Write<uint16_t>(message.size());
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bitStream.Write(message);
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}
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bool StringCheck::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(chatLevel));
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VALIDATE_READ(bitStream.Read(requestID));
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receiver.resize(42);
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VALIDATE_READ(bitStream.ReadBits(reinterpret_cast<unsigned char*>(receiver.data()), BYTES_TO_BITS(receiver.size() * sizeof(char16_t)), true));
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VALIDATE_READ(BitStreamUtils::ReadLengthPrefixed<uint16_t>(bitStream, message));
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return true;
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}
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std::string StringCheck::GetNarrowReceiver() const {
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std::string narrow;
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for (const auto character : receiver) narrow.push_back(static_cast<uint8_t>(character));
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if (!narrow.empty()) {
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if (std::string(narrow.c_str(), 4) == "[GM]") { // Shift the string forward if we are speaking to a GM as the client appends "[GM]" if they are
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narrow = std::string(narrow.c_str() + 4, narrow.size() - 4);
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}
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}
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return narrow;
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}
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std::string StringCheck::GetNarrowMessage() const {
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std::string narrow;
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for (const auto character : message) narrow.push_back(static_cast<uint8_t>(character));
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return narrow;
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}
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void GeneralChatMessage::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(chatChannel);
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bitStream.Write(unknown);
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bitStream.Write<int32_t>(message.size() + 1);
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bitStream.Write(message);
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bitStream.Write<char16_t>(u'\0');
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}
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bool GeneralChatMessage::Deserialize(RakNet::BitStream& bitStream) {
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int32_t messageLength{};
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VALIDATE_READ(bitStream.Read(chatChannel));
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VALIDATE_READ(bitStream.Read(unknown));
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VALIDATE_READ(bitStream.Read(messageLength));
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if (messageLength < 0 || static_cast<uint32_t>(messageLength) > MAX_MESSAGE_LENGTH) return false;
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message.clear();
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for (int32_t i = 0; i < (messageLength - 1); ++i) {
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char16_t character;
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VALIDATE_READ(bitStream.Read(character));
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message.push_back(character);
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}
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// The null terminator the count includes; DLU never needed it
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if (messageLength > 0) bitStream.IgnoreBits(std::min<BitSize_t>(bitStream.GetNumberOfUnreadBits(), BYTES_TO_BITS(sizeof(char16_t))));
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return true;
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}
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void HandleFunness::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(cheatInfo);
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bitStream.Write(cheatType);
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}
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bool HandleFunness::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(cheatInfo));
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VALIDATE_READ(bitStream.Read(cheatType));
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return true;
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}
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void RequestUgcManifestInfo::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(blueprintId);
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bitStream.Write(resourceType);
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}
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bool RequestUgcManifestInfo::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(blueprintId));
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VALIDATE_READ(bitStream.Read(resourceType));
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return true;
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}
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void UgcDownloadFailed::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(resType);
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bitStream.Write(blueprintId);
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bitStream.Write(statusCode);
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bitStream.Write(charId);
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}
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bool UgcDownloadFailed::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(resType));
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VALIDATE_READ(bitStream.Read(blueprintId));
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VALIDATE_READ(bitStream.Read(statusCode));
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VALIDATE_READ(bitStream.Read(charId));
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return true;
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}
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void UIHelpTop5::Serialize(RakNet::BitStream& bitStream) const {
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bitStream.Write(language);
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}
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bool UIHelpTop5::Deserialize(RakNet::BitStream& bitStream) {
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VALIDATE_READ(bitStream.Read(language));
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return true;
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}
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}
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