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-rw-r--r--Tools/ProtoProxy/Connection.cpp709
1 files changed, 425 insertions, 284 deletions
diff --git a/Tools/ProtoProxy/Connection.cpp b/Tools/ProtoProxy/Connection.cpp
index c4776949e..4b3442858 100644
--- a/Tools/ProtoProxy/Connection.cpp
+++ b/Tools/ProtoProxy/Connection.cpp
@@ -52,7 +52,7 @@
#define CLIENTSEND(...) SendData(m_ClientSocket, __VA_ARGS__, "Client")
#define SERVERSEND(...) SendData(m_ServerSocket, __VA_ARGS__, "Server")
-#define CLIENTENCRYPTSEND(...) SendEncryptedData(m_ClientSocket, m_ClientEncryptor, __VA_ARGS__, "Client")
+#define CLIENTENCRYPTSEND(...) SendData(m_ClientSocket, __VA_ARGS__, "Client") // The client conn is always unencrypted
#define SERVERENCRYPTSEND(...) SendEncryptedData(m_ServerSocket, m_ServerEncryptor, __VA_ARGS__, "Server")
#define COPY_TO_SERVER() \
@@ -99,12 +99,13 @@
CLIENTENCRYPTSEND(ToClient.data(), ToClient.size()); \
break; \
} \
- case csWaitingForEncryption: \
+ /* case csWaitingForEncryption: \
{ \
Log("Waiting for client encryption, queued %u bytes", ToClient.size()); \
m_ClientEncryptionBuffer.append(ToClient.data(), ToClient.size()); \
break; \
} \
+ */ \
} \
DebugSleep(50); \
}
@@ -144,15 +145,20 @@ typedef unsigned char Byte;
enum
{
- PACKET_KEEPALIVE = 0x00,
- PACKET_LOGIN = 0x01,
- PACKET_HANDSHAKE = 0x02,
- PACKET_CHAT_MESSAGE = 0x03,
- PACKET_TIME_UPDATE = 0x04,
- PACKET_ENTITY_EQUIPMENT = 0x05,
- PACKET_COMPASS = 0x06,
+ // client-bound packets:
+ PACKET_C_KEEPALIVE = 0x00,
+ PACKET_C_JOIN_GAME = 0x01,
+ PACKET_C_CHAT_MESSAGE = 0x02,
+
+ // server-bound packets:
+ PACKET_S_KEEPALIVE = 0x00, // Also the initial handshake, as the very first packet
+ PACKET_S_CHAT_MESSAGE = 0x01,
+
+ PACKET_TIME_UPDATE = 0x03,
+ PACKET_ENTITY_EQUIPMENT = 0x04,
+ PACKET_SPAWN_POSITION = 0x05,
+ PACKET_UPDATE_HEALTH = 0x06,
PACKET_USE_ENTITY = 0x07,
- PACKET_UPDATE_HEALTH = 0x08,
PACKET_PLAYER_ON_GROUND = 0x0a,
PACKET_PLAYER_POSITION = 0x0b,
PACKET_PLAYER_LOOK = 0x0c,
@@ -270,7 +276,10 @@ cConnection::cConnection(SOCKET a_ClientSocket, cServer & a_Server) :
m_Nonce(0),
m_ClientBuffer(1024 KiB),
m_ServerBuffer(1024 KiB),
- m_HasClientPinged(false)
+ m_HasClientPinged(false),
+ m_ServerProtocolState(-1),
+ m_ClientProtocolState(-1),
+ m_IsServerEncrypted(false)
{
// Create the Logs subfolder, if not already created:
#if defined(_WIN32)
@@ -279,7 +288,7 @@ cConnection::cConnection(SOCKET a_ClientSocket, cServer & a_Server) :
mkdir("Logs", 0777);
#endif
- Printf(m_LogNameBase, "Logs/Log_%d", (int)time(NULL));
+ Printf(m_LogNameBase, "Logs/Log_%d_%d", (int)time(NULL), a_ClientSocket);
AString fnam(m_LogNameBase);
fnam.append(".log");
m_LogFile = fopen(fnam.c_str(), "w");
@@ -453,7 +462,6 @@ bool cConnection::RelayFromServer(void)
{
m_ServerDecryptor.ProcessData((byte *)Buffer, (byte *)Buffer, res);
DataLog(Buffer, res, "Decrypted %d bytes from the SERVER", res);
- m_ClientEncryptor.ProcessData((byte *)Buffer, (byte *)Buffer, res);
return CLIENTSEND(Buffer, res);
}
}
@@ -486,13 +494,10 @@ bool cConnection::RelayFromClient(void)
}
case csEncryptedUnderstood:
{
- m_ClientDecryptor.ProcessData((byte *)Buffer, (byte *)Buffer, res);
- DataLog(Buffer, res, "Decrypted %d bytes from the CLIENT", res);
return DecodeClientsPackets(Buffer, res);
}
case csEncryptedUnknown:
{
- m_ClientDecryptor.ProcessData((byte *)Buffer, (byte *)Buffer, res);
DataLog(Buffer, res, "Decrypted %d bytes from the CLIENT", res);
m_ServerEncryptor.ProcessData((byte *)Buffer, (byte *)Buffer, res);
return SERVERSEND(Buffer, res);
@@ -517,7 +522,7 @@ double cConnection::GetRelativeTime(void)
bool cConnection::SendData(SOCKET a_Socket, const char * a_Data, int a_Size, const char * a_Peer)
{
- DataLog(a_Data, a_Size, "Sending data to %s", a_Peer);
+ DataLog(a_Data, a_Size, "Sending data to %s, %d bytes", a_Peer, a_Size);
int res = send(a_Socket, a_Data, a_Size, 0);
if (res <= 0)
@@ -590,38 +595,87 @@ bool cConnection::DecodeClientsPackets(const char * a_Data, int a_Size)
while (m_ClientBuffer.CanReadBytes(1))
{
- unsigned char PacketType;
- m_ClientBuffer.ReadByte(PacketType);
- Log("Decoding client's packets, there are now %d bytes in the queue; next packet is 0x%02x", m_ClientBuffer.GetReadableSpace(), PacketType);
- switch (PacketType)
+ UInt32 PacketLen;
+ if (
+ !m_ClientBuffer.ReadVarInt(PacketLen) ||
+ !m_ClientBuffer.CanReadBytes(PacketLen)
+ )
+ {
+ // Not a complete packet yet
+ break;
+ }
+ UInt32 PacketType;
+ VERIFY(m_ClientBuffer.ReadVarInt(PacketType));
+ Log("Decoding client's packets, there are now %d bytes in the queue; next packet is 0x%0x, %u bytes long", m_ClientBuffer.GetReadableSpace(), PacketType, PacketLen);
+ switch (m_ClientProtocolState)
{
- case PACKET_BLOCK_DIG: HANDLE_CLIENT_READ(HandleClientBlockDig); break;
- case PACKET_BLOCK_PLACE: HANDLE_CLIENT_READ(HandleClientBlockPlace); break;
- case PACKET_CHAT_MESSAGE: HANDLE_CLIENT_READ(HandleClientChatMessage); break;
- case PACKET_CLIENT_STATUSES: HANDLE_CLIENT_READ(HandleClientClientStatuses); break;
- case PACKET_CREATIVE_INVENTORY_ACTION: HANDLE_CLIENT_READ(HandleClientCreativeInventoryAction); break;
- case PACKET_DISCONNECT: HANDLE_CLIENT_READ(HandleClientDisconnect); break;
- case PACKET_ENCRYPTION_KEY_RESPONSE: HANDLE_CLIENT_READ(HandleClientEncryptionKeyResponse); break;
- case PACKET_ENTITY_ACTION: HANDLE_CLIENT_READ(HandleClientEntityAction); break;
- case PACKET_HANDSHAKE: HANDLE_CLIENT_READ(HandleClientHandshake); break;
- case PACKET_KEEPALIVE: HANDLE_CLIENT_READ(HandleClientKeepAlive); break;
- case PACKET_LOCALE_AND_VIEW: HANDLE_CLIENT_READ(HandleClientLocaleAndView); break;
- case PACKET_PING: HANDLE_CLIENT_READ(HandleClientPing); break;
- case PACKET_PLAYER_ABILITIES: HANDLE_CLIENT_READ(HandleClientPlayerAbilities); break;
- case PACKET_PLAYER_ANIMATION: HANDLE_CLIENT_READ(HandleClientAnimation); break;
- case PACKET_PLAYER_LOOK: HANDLE_CLIENT_READ(HandleClientPlayerLook); break;
- case PACKET_PLAYER_ON_GROUND: HANDLE_CLIENT_READ(HandleClientPlayerOnGround); break;
- case PACKET_PLAYER_POSITION: HANDLE_CLIENT_READ(HandleClientPlayerPosition); break;
- case PACKET_PLAYER_POSITION_LOOK: HANDLE_CLIENT_READ(HandleClientPlayerPositionLook); break;
- case PACKET_PLUGIN_MESSAGE: HANDLE_CLIENT_READ(HandleClientPluginMessage); break;
- case PACKET_SLOT_SELECT: HANDLE_CLIENT_READ(HandleClientSlotSelect); break;
- case PACKET_TAB_COMPLETION: HANDLE_CLIENT_READ(HandleClientTabCompletion); break;
- case PACKET_UPDATE_SIGN: HANDLE_CLIENT_READ(HandleClientUpdateSign); break;
- case PACKET_USE_ENTITY: HANDLE_CLIENT_READ(HandleClientUseEntity); break;
- case PACKET_WINDOW_CLICK: HANDLE_CLIENT_READ(HandleClientWindowClick); break;
- case PACKET_WINDOW_CLOSE: HANDLE_CLIENT_READ(HandleClientWindowClose); break;
+ case -1:
+ {
+ // No initial handshake received yet
+ switch (PacketType)
+ {
+ case 0: HANDLE_CLIENT_READ(HandleClientHandshake); break;
+ }
+ break;
+ } // case -1
+
+ case 1:
+ {
+ // Status query
+ switch (PacketType)
+ {
+ case 0x00: HANDLE_CLIENT_READ(HandleClientStatusRequest); break;
+ case 0x01: HANDLE_CLIENT_READ(HandleClientStatusPing); break;
+ }
+ break;
+ }
+
+ case 2:
+ {
+ // Login
+ switch (PacketType)
+ {
+ case 0x00: HANDLE_CLIENT_READ(HandleClientLoginStart); break;
+ case 0x01: HANDLE_CLIENT_READ(HandleClientLoginEncryptionKeyResponse); break;
+ }
+ break;
+ }
+
+ case 3:
+ {
+ // Game:
+ switch (PacketType)
+ {
+ case PACKET_BLOCK_DIG: HANDLE_CLIENT_READ(HandleClientBlockDig); break;
+ case PACKET_BLOCK_PLACE: HANDLE_CLIENT_READ(HandleClientBlockPlace); break;
+ case PACKET_S_CHAT_MESSAGE: HANDLE_CLIENT_READ(HandleClientChatMessage); break;
+ case PACKET_CLIENT_STATUSES: HANDLE_CLIENT_READ(HandleClientClientStatuses); break;
+ case PACKET_CREATIVE_INVENTORY_ACTION: HANDLE_CLIENT_READ(HandleClientCreativeInventoryAction); break;
+ case PACKET_DISCONNECT: HANDLE_CLIENT_READ(HandleClientDisconnect); break;
+ case PACKET_ENTITY_ACTION: HANDLE_CLIENT_READ(HandleClientEntityAction); break;
+ case PACKET_S_KEEPALIVE: HANDLE_CLIENT_READ(HandleClientKeepAlive); break;
+ case PACKET_LOCALE_AND_VIEW: HANDLE_CLIENT_READ(HandleClientLocaleAndView); break;
+ case PACKET_PING: HANDLE_CLIENT_READ(HandleClientPing); break;
+ case PACKET_PLAYER_ABILITIES: HANDLE_CLIENT_READ(HandleClientPlayerAbilities); break;
+ case PACKET_PLAYER_ANIMATION: HANDLE_CLIENT_READ(HandleClientAnimation); break;
+ case PACKET_PLAYER_LOOK: HANDLE_CLIENT_READ(HandleClientPlayerLook); break;
+ case PACKET_PLAYER_ON_GROUND: HANDLE_CLIENT_READ(HandleClientPlayerOnGround); break;
+ case PACKET_PLAYER_POSITION: HANDLE_CLIENT_READ(HandleClientPlayerPosition); break;
+ case PACKET_PLAYER_POSITION_LOOK: HANDLE_CLIENT_READ(HandleClientPlayerPositionLook); break;
+ case PACKET_PLUGIN_MESSAGE: HANDLE_CLIENT_READ(HandleClientPluginMessage); break;
+ case PACKET_SLOT_SELECT: HANDLE_CLIENT_READ(HandleClientSlotSelect); break;
+ case PACKET_TAB_COMPLETION: HANDLE_CLIENT_READ(HandleClientTabCompletion); break;
+ case PACKET_UPDATE_SIGN: HANDLE_CLIENT_READ(HandleClientUpdateSign); break;
+ case PACKET_USE_ENTITY: HANDLE_CLIENT_READ(HandleClientUseEntity); break;
+ case PACKET_WINDOW_CLICK: HANDLE_CLIENT_READ(HandleClientWindowClick); break;
+ case PACKET_WINDOW_CLOSE: HANDLE_CLIENT_READ(HandleClientWindowClose); break;
+ }
+ break;
+ } // case 2
+
default:
{
+ // TODO: Move this elsewhere
if (m_ClientState == csEncryptedUnderstood)
{
Log("****************** Unknown packet 0x%02x from the client while encrypted; continuing to relay blind only", PacketType);
@@ -646,10 +700,10 @@ bool cConnection::DecodeClientsPackets(const char * a_Data, int a_Size)
Log("Unknown packet 0x%02x from the client while unencrypted; aborting connection", PacketType);
return false;
}
- }
- } // switch (PacketType)
+ } // default
+ } // switch (m_ProtocolState)
m_ClientBuffer.CommitRead();
- } // while (CanReadBytes(1))
+ } // while (true)
return true;
}
@@ -673,66 +727,114 @@ bool cConnection::DecodeServersPackets(const char * a_Data, int a_Size)
// Client hasn't finished encryption handshake yet, don't send them any data yet
}
- while (m_ServerBuffer.CanReadBytes(1))
+ while (true)
{
- unsigned char PacketType;
- m_ServerBuffer.ReadByte(PacketType);
- Log("Decoding server's packets, there are now %d bytes in the queue; next packet is 0x%02x", m_ServerBuffer.GetReadableSpace(), PacketType);
+ UInt32 PacketLen;
+ if (
+ !m_ServerBuffer.ReadVarInt(PacketLen) ||
+ !m_ServerBuffer.CanReadBytes(PacketLen)
+ )
+ {
+ // Not a complete packet yet
+ break;
+ }
+ UInt32 PacketType;
+ VERIFY(m_ServerBuffer.ReadVarInt(PacketType));
+ Log("Decoding server's packets, there are now %d bytes in the queue; next packet is 0x%0x, %u bytes long", m_ServerBuffer.GetReadableSpace(), PacketType, PacketLen);
LogFlush();
- switch (PacketType)
+ switch (m_ServerProtocolState)
{
- case PACKET_ATTACH_ENTITY: HANDLE_SERVER_READ(HandleServerAttachEntity); break;
- case PACKET_BLOCK_ACTION: HANDLE_SERVER_READ(HandleServerBlockAction); break;
- case PACKET_BLOCK_CHANGE: HANDLE_SERVER_READ(HandleServerBlockChange); break;
- case PACKET_CHANGE_GAME_STATE: HANDLE_SERVER_READ(HandleServerChangeGameState); break;
- case PACKET_CHAT_MESSAGE: HANDLE_SERVER_READ(HandleServerChatMessage); break;
- case PACKET_COLLECT_PICKUP: HANDLE_SERVER_READ(HandleServerCollectPickup); break;
- case PACKET_COMPASS: HANDLE_SERVER_READ(HandleServerCompass); break;
- case PACKET_DESTROY_ENTITIES: HANDLE_SERVER_READ(HandleServerDestroyEntities); break;
- case PACKET_ENCRYPTION_KEY_REQUEST: HANDLE_SERVER_READ(HandleServerEncryptionKeyRequest); break;
- case PACKET_ENCRYPTION_KEY_RESPONSE: HANDLE_SERVER_READ(HandleServerEncryptionKeyResponse); break;
- case PACKET_ENTITY: HANDLE_SERVER_READ(HandleServerEntity); break;
- case PACKET_ENTITY_EQUIPMENT: HANDLE_SERVER_READ(HandleServerEntityEquipment); break;
- case PACKET_ENTITY_HEAD_LOOK: HANDLE_SERVER_READ(HandleServerEntityHeadLook); break;
- case PACKET_ENTITY_LOOK: HANDLE_SERVER_READ(HandleServerEntityLook); break;
- case PACKET_ENTITY_METADATA: HANDLE_SERVER_READ(HandleServerEntityMetadata); break;
- case PACKET_ENTITY_PROPERTIES: HANDLE_SERVER_READ(HandleServerEntityProperties); break;
- case PACKET_ENTITY_RELATIVE_MOVE: HANDLE_SERVER_READ(HandleServerEntityRelativeMove); break;
- case PACKET_ENTITY_RELATIVE_MOVE_LOOK: HANDLE_SERVER_READ(HandleServerEntityRelativeMoveLook); break;
- case PACKET_ENTITY_STATUS: HANDLE_SERVER_READ(HandleServerEntityStatus); break;
- case PACKET_ENTITY_TELEPORT: HANDLE_SERVER_READ(HandleServerEntityTeleport); break;
- case PACKET_ENTITY_VELOCITY: HANDLE_SERVER_READ(HandleServerEntityVelocity); break;
- case PACKET_EXPLOSION: HANDLE_SERVER_READ(HandleServerExplosion); break;
- case PACKET_INCREMENT_STATISTIC: HANDLE_SERVER_READ(HandleServerIncrementStatistic); break;
- case PACKET_KEEPALIVE: HANDLE_SERVER_READ(HandleServerKeepAlive); break;
- case PACKET_KICK: HANDLE_SERVER_READ(HandleServerKick); break;
- case PACKET_LOGIN: HANDLE_SERVER_READ(HandleServerLogin); break;
- case PACKET_MAP_CHUNK: HANDLE_SERVER_READ(HandleServerMapChunk); break;
- case PACKET_MAP_CHUNK_BULK: HANDLE_SERVER_READ(HandleServerMapChunkBulk); break;
- case PACKET_MULTI_BLOCK_CHANGE: HANDLE_SERVER_READ(HandleServerMultiBlockChange); break;
- case PACKET_NAMED_SOUND_EFFECT: HANDLE_SERVER_READ(HandleServerNamedSoundEffect); break;
- case PACKET_PLAYER_ABILITIES: HANDLE_SERVER_READ(HandleServerPlayerAbilities); break;
- case PACKET_PLAYER_ANIMATION: HANDLE_SERVER_READ(HandleServerPlayerAnimation); break;
- case PACKET_PLAYER_LIST_ITEM: HANDLE_SERVER_READ(HandleServerPlayerListItem); break;
- case PACKET_PLAYER_POSITION_LOOK: HANDLE_SERVER_READ(HandleServerPlayerPositionLook); break;
- case PACKET_PLUGIN_MESSAGE: HANDLE_SERVER_READ(HandleServerPluginMessage); break;
- case PACKET_SET_EXPERIENCE: HANDLE_SERVER_READ(HandleServerSetExperience); break;
- case PACKET_SET_SLOT: HANDLE_SERVER_READ(HandleServerSetSlot); break;
- case PACKET_SLOT_SELECT: HANDLE_SERVER_READ(HandleServerSlotSelect); break;
- case PACKET_SOUND_EFFECT: HANDLE_SERVER_READ(HandleServerSoundEffect); break;
- case PACKET_SPAWN_MOB: HANDLE_SERVER_READ(HandleServerSpawnMob); break;
- case PACKET_SPAWN_NAMED_ENTITY: HANDLE_SERVER_READ(HandleServerSpawnNamedEntity); break;
- case PACKET_SPAWN_OBJECT_VEHICLE: HANDLE_SERVER_READ(HandleServerSpawnObjectVehicle); break;
- case PACKET_SPAWN_PAINTING: HANDLE_SERVER_READ(HandleServerSpawnPainting); break;
- case PACKET_SPAWN_PICKUP: HANDLE_SERVER_READ(HandleServerSpawnPickup); break;
- case PACKET_TAB_COMPLETION: HANDLE_SERVER_READ(HandleServerTabCompletion); break;
- case PACKET_TIME_UPDATE: HANDLE_SERVER_READ(HandleServerTimeUpdate); break;
- case PACKET_UPDATE_HEALTH: HANDLE_SERVER_READ(HandleServerUpdateHealth); break;
- case PACKET_UPDATE_SIGN: HANDLE_SERVER_READ(HandleServerUpdateSign); break;
- case PACKET_UPDATE_TILE_ENTITY: HANDLE_SERVER_READ(HandleServerUpdateTileEntity); break;
- case PACKET_WINDOW_CLOSE: HANDLE_SERVER_READ(HandleServerWindowClose); break;
- case PACKET_WINDOW_CONTENTS: HANDLE_SERVER_READ(HandleServerWindowContents); break;
- case PACKET_WINDOW_OPEN: HANDLE_SERVER_READ(HandleServerWindowOpen); break;
+ case -1:
+ {
+ Log("Receiving data from the server without an initial handshake message!");
+ break;
+ }
+
+ case 1:
+ {
+ // Status query:
+ switch (PacketType)
+ {
+ case 0: HANDLE_SERVER_READ(HandleServerStatusResponse); break;
+ case 1: HANDLE_SERVER_READ(HandleServerStatusPing); break;
+ }
+ break;
+ }
+
+ case 2:
+ {
+ // Login:
+ switch (PacketType)
+ {
+ case 0x00: HANDLE_SERVER_READ(HandleServerLoginDisconnect); break;
+ case 0x01: HANDLE_SERVER_READ(HandleServerLoginEncryptionKeyRequest); break;
+ case 0x02: HANDLE_SERVER_READ(HandleServerLoginSuccess); break;
+ }
+ break;
+ }
+
+ case 3:
+ {
+ // Game:
+ switch (PacketType)
+ {
+ /*
+ case 0x1b: HANDLE_SERVER_READ(HandleServerAttachEntity); break;
+ case 0x24: HANDLE_SERVER_READ(HandleServerBlockAction); break;
+ case 0x23: HANDLE_SERVER_READ(HandleServerBlockChange); break;
+ case 0x2b: HANDLE_SERVER_READ(HandleServerChangeGameState); break;
+ case 0x02: HANDLE_SERVER_READ(HandleServerChatMessage); break;
+ case 0x0d: HANDLE_SERVER_READ(HandleServerCollectPickup); break;
+ case 0x13: HANDLE_SERVER_READ(HandleServerDestroyEntities); break;
+ */
+ case PACKET_ENTITY: HANDLE_SERVER_READ(HandleServerEntity); break;
+ case PACKET_ENTITY_EQUIPMENT: HANDLE_SERVER_READ(HandleServerEntityEquipment); break;
+ case PACKET_ENTITY_HEAD_LOOK: HANDLE_SERVER_READ(HandleServerEntityHeadLook); break;
+ case PACKET_ENTITY_LOOK: HANDLE_SERVER_READ(HandleServerEntityLook); break;
+ case PACKET_ENTITY_METADATA: HANDLE_SERVER_READ(HandleServerEntityMetadata); break;
+ case PACKET_ENTITY_PROPERTIES: HANDLE_SERVER_READ(HandleServerEntityProperties); break;
+ case PACKET_ENTITY_RELATIVE_MOVE: HANDLE_SERVER_READ(HandleServerEntityRelativeMove); break;
+ case PACKET_ENTITY_RELATIVE_MOVE_LOOK: HANDLE_SERVER_READ(HandleServerEntityRelativeMoveLook); break;
+ case PACKET_ENTITY_STATUS: HANDLE_SERVER_READ(HandleServerEntityStatus); break;
+ case PACKET_ENTITY_TELEPORT: HANDLE_SERVER_READ(HandleServerEntityTeleport); break;
+ case PACKET_ENTITY_VELOCITY: HANDLE_SERVER_READ(HandleServerEntityVelocity); break;
+ case PACKET_EXPLOSION: HANDLE_SERVER_READ(HandleServerExplosion); break;
+ case PACKET_INCREMENT_STATISTIC: HANDLE_SERVER_READ(HandleServerIncrementStatistic); break;
+ case PACKET_C_JOIN_GAME: HANDLE_SERVER_READ(HandleServerLogin); break;
+ case PACKET_C_KEEPALIVE: HANDLE_SERVER_READ(HandleServerKeepAlive); break;
+ case PACKET_KICK: HANDLE_SERVER_READ(HandleServerKick); break;
+ case PACKET_MAP_CHUNK: HANDLE_SERVER_READ(HandleServerMapChunk); break;
+ case PACKET_MAP_CHUNK_BULK: HANDLE_SERVER_READ(HandleServerMapChunkBulk); break;
+ case PACKET_MULTI_BLOCK_CHANGE: HANDLE_SERVER_READ(HandleServerMultiBlockChange); break;
+ case PACKET_NAMED_SOUND_EFFECT: HANDLE_SERVER_READ(HandleServerNamedSoundEffect); break;
+ case PACKET_PLAYER_ABILITIES: HANDLE_SERVER_READ(HandleServerPlayerAbilities); break;
+ case PACKET_PLAYER_ANIMATION: HANDLE_SERVER_READ(HandleServerPlayerAnimation); break;
+ case PACKET_PLAYER_LIST_ITEM: HANDLE_SERVER_READ(HandleServerPlayerListItem); break;
+ case PACKET_PLAYER_POSITION_LOOK: HANDLE_SERVER_READ(HandleServerPlayerPositionLook); break;
+ case PACKET_PLUGIN_MESSAGE: HANDLE_SERVER_READ(HandleServerPluginMessage); break;
+ case PACKET_SET_EXPERIENCE: HANDLE_SERVER_READ(HandleServerSetExperience); break;
+ case PACKET_SET_SLOT: HANDLE_SERVER_READ(HandleServerSetSlot); break;
+ case PACKET_SLOT_SELECT: HANDLE_SERVER_READ(HandleServerSlotSelect); break;
+ case PACKET_SOUND_EFFECT: HANDLE_SERVER_READ(HandleServerSoundEffect); break;
+ case PACKET_SPAWN_MOB: HANDLE_SERVER_READ(HandleServerSpawnMob); break;
+ case PACKET_SPAWN_NAMED_ENTITY: HANDLE_SERVER_READ(HandleServerSpawnNamedEntity); break;
+ case PACKET_SPAWN_OBJECT_VEHICLE: HANDLE_SERVER_READ(HandleServerSpawnObjectVehicle); break;
+ case PACKET_SPAWN_PAINTING: HANDLE_SERVER_READ(HandleServerSpawnPainting); break;
+ case PACKET_SPAWN_PICKUP: HANDLE_SERVER_READ(HandleServerSpawnPickup); break;
+ case PACKET_SPAWN_POSITION: HANDLE_SERVER_READ(HandleServerCompass); break;
+ case PACKET_TAB_COMPLETION: HANDLE_SERVER_READ(HandleServerTabCompletion); break;
+ case PACKET_TIME_UPDATE: HANDLE_SERVER_READ(HandleServerTimeUpdate); break;
+ case PACKET_UPDATE_HEALTH: HANDLE_SERVER_READ(HandleServerUpdateHealth); break;
+ case PACKET_UPDATE_SIGN: HANDLE_SERVER_READ(HandleServerUpdateSign); break;
+ case PACKET_UPDATE_TILE_ENTITY: HANDLE_SERVER_READ(HandleServerUpdateTileEntity); break;
+ case PACKET_WINDOW_CLOSE: HANDLE_SERVER_READ(HandleServerWindowClose); break;
+ case PACKET_WINDOW_CONTENTS: HANDLE_SERVER_READ(HandleServerWindowContents); break;
+ case PACKET_WINDOW_OPEN: HANDLE_SERVER_READ(HandleServerWindowOpen); break;
+ } // switch (PacketType)
+ break;
+ } // case 2
+
+ // TODO: Move this elsewhere
default:
{
if (m_ServerState == csEncryptedUnderstood)
@@ -760,7 +862,8 @@ bool cConnection::DecodeServersPackets(const char * a_Data, int a_Size)
return false;
}
}
- } // switch (PacketType)
+ } // switch (m_ProtocolState)
+
m_ServerBuffer.CommitRead();
} // while (CanReadBytes(1))
return true;
@@ -770,6 +873,76 @@ bool cConnection::DecodeServersPackets(const char * a_Data, int a_Size)
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// packet handling, client-side, initial handshake:
+
+bool cConnection::HandleClientHandshake(void)
+{
+ // Read the packet from the client:
+ HANDLE_CLIENT_PACKET_READ(ReadVarInt, UInt32, ProtocolVersion);
+ HANDLE_CLIENT_PACKET_READ(ReadVarUTF8String, AString, ServerHost);
+ HANDLE_CLIENT_PACKET_READ(ReadBEShort, short, ServerPort);
+ HANDLE_CLIENT_PACKET_READ(ReadVarInt, UInt32, NextState);
+ m_ClientBuffer.CommitRead();
+
+ Log("Received an initial handshake packet from the client:");
+ Log(" ProtocolVersion = %u", ProtocolVersion);
+ Log(" ServerHost = \"%s\"", ServerHost.c_str());
+ Log(" ServerPort = %d", ServerPort);
+ Log(" NextState = %u", NextState);
+
+ // Send the same packet to the server, but with our port:
+ cByteBuffer Packet(512);
+ Packet.WriteVarInt(0); // Packet type - initial handshake
+ Packet.WriteVarInt(ProtocolVersion);
+ Packet.WriteVarUTF8String(ServerHost);
+ Packet.WriteBEShort(m_Server.GetConnectPort());
+ Packet.WriteVarInt(NextState);
+ AString Pkt;
+ Packet.ReadAll(Pkt);
+ cByteBuffer ToServer(512);
+ ToServer.WriteVarUTF8String(Pkt);
+ SERVERSEND(ToServer);
+
+ m_ClientProtocolState = (int)NextState;
+ m_ServerProtocolState = (int)NextState;
+
+ return true;
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// packet handling, client-side, login:
+
+bool cConnection::HandleClientLoginEncryptionKeyResponse(void)
+{
+ Log("Client: Unexpected packet: encryption key response");
+ return true;
+}
+
+
+
+
+
+bool cConnection::HandleClientLoginStart(void)
+{
+ HANDLE_CLIENT_PACKET_READ(ReadVarUTF8String, AString, UserName);
+ Log("Received a login start packet from the client:");
+ Log(" Username = \"%s\"", UserName.c_str());
+ COPY_TO_SERVER();
+ return true;
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// packet handling, client-side, game:
+
bool cConnection::HandleClientAnimation(void)
{
HANDLE_CLIENT_PACKET_READ(ReadBEInt, int, EntityID);
@@ -890,33 +1063,6 @@ bool cConnection::HandleClientDisconnect(void)
-bool cConnection::HandleClientEncryptionKeyResponse(void)
-{
- HANDLE_CLIENT_PACKET_READ(ReadBEShort, short, EncKeyLength);
- AString EncKey;
- if (!m_ClientBuffer.ReadString(EncKey, EncKeyLength))
- {
- return true;
- }
- HANDLE_CLIENT_PACKET_READ(ReadBEShort, short, EncNonceLength);
- AString EncNonce;
- if (!m_ClientBuffer.ReadString(EncNonce, EncNonceLength))
- {
- return true;
- }
- if ((EncKeyLength > MAX_ENC_LEN) || (EncNonceLength > MAX_ENC_LEN))
- {
- Log("Client: Too long encryption params");
- return true;
- }
- StartClientEncryption(EncKey, EncNonce);
- return true;
-}
-
-
-
-
-
bool cConnection::HandleClientEntityAction(void)
{
HANDLE_CLIENT_PACKET_READ(ReadBEInt, int, PlayerID);
@@ -934,37 +1080,6 @@ bool cConnection::HandleClientEntityAction(void)
-bool cConnection::HandleClientHandshake(void)
-{
- // Read the packet from the client:
- HANDLE_CLIENT_PACKET_READ(ReadByte, Byte, ProtocolVersion);
- HANDLE_CLIENT_PACKET_READ(ReadBEUTF16String16, AString, Username);
- HANDLE_CLIENT_PACKET_READ(ReadBEUTF16String16, AString, ServerHost);
- HANDLE_CLIENT_PACKET_READ(ReadBEInt, int, ServerPort);
- m_ClientBuffer.CommitRead();
-
- Log("Received a PACKET_HANDSHAKE from the client:");
- Log(" ProtocolVersion = %d", ProtocolVersion);
- Log(" Username = \"%s\"", Username.c_str());
- Log(" ServerHost = \"%s\"", ServerHost.c_str());
- Log(" ServerPort = %d", ServerPort);
-
- // Send the same packet to the server, but with our port:
- cByteBuffer ToServer(512);
- ToServer.WriteByte (PACKET_HANDSHAKE);
- ToServer.WriteByte (ProtocolVersion);
- ToServer.WriteBEUTF16String16(Username);
- ToServer.WriteBEUTF16String16(ServerHost);
- ToServer.WriteBEInt (m_Server.GetConnectPort());
- SERVERSEND(ToServer);
-
- return true;
-}
-
-
-
-
-
bool cConnection::HandleClientKeepAlive(void)
{
HANDLE_CLIENT_PACKET_READ(ReadBEInt, int, ID);
@@ -1124,6 +1239,30 @@ bool cConnection::HandleClientSlotSelect(void)
+bool cConnection::HandleClientStatusPing(void)
+{
+ HANDLE_CLIENT_PACKET_READ(ReadBEInt64, Int64, Time);
+ Log("Received the status ping packet from the client:");
+ Log(" Time = %lld", Time);
+ COPY_TO_SERVER();
+ return true;
+}
+
+
+
+
+
+bool cConnection::HandleClientStatusRequest(void)
+{
+ Log("Received the status request packet from the client");
+ COPY_TO_SERVER();
+ return true;
+}
+
+
+
+
+
bool cConnection::HandleClientTabCompletion(void)
{
HANDLE_CLIENT_PACKET_READ(ReadBEUTF16String16, AString, Query);
@@ -1213,6 +1352,84 @@ bool cConnection::HandleClientWindowClose(void)
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// packet handling, server-side, login:
+
+bool cConnection::HandleServerLoginDisconnect(void)
+{
+ HANDLE_SERVER_PACKET_READ(ReadVarUTF8String, AString, Reason);
+ Log("Received a login-disconnect packet from the server:");
+ Log(" Reason = \"%s\"", Reason.c_str());
+ COPY_TO_SERVER();
+ return true;
+}
+
+
+
+
+
+bool cConnection::HandleServerLoginEncryptionKeyRequest(void)
+{
+ // Read the packet from the server:
+ HANDLE_SERVER_PACKET_READ(ReadVarUTF8String, AString, ServerID);
+ HANDLE_SERVER_PACKET_READ(ReadBEShort, short, PublicKeyLength);
+ AString PublicKey;
+ if (!m_ServerBuffer.ReadString(PublicKey, PublicKeyLength))
+ {
+ return false;
+ }
+ HANDLE_SERVER_PACKET_READ(ReadBEShort, short, NonceLength);
+ AString Nonce;
+ if (!m_ServerBuffer.ReadString(Nonce, NonceLength))
+ {
+ return false;
+ }
+ Log("Got PACKET_ENCRYPTION_KEY_REQUEST from the SERVER:");
+ Log(" ServerID = %s", ServerID.c_str());
+
+ // Reply to the server:
+ SendEncryptionKeyResponse(PublicKey, Nonce);
+
+ // Do not send to client - we want the client connection open
+ return true;
+}
+
+
+
+
+
+bool cConnection::HandleServerLoginSuccess(void)
+{
+ HANDLE_SERVER_PACKET_READ(ReadVarUTF8String, AString, UUID);
+ HANDLE_SERVER_PACKET_READ(ReadVarUTF8String, AString, Username);
+ Log("Received a login success packet from the server:");
+ Log(" UUID = \"%s\"", UUID.c_str());
+ Log(" Username = \"%s\"", Username.c_str());
+
+ Log("Server is now in protocol state Game.");
+ m_ServerProtocolState = 3;
+
+ if (m_IsServerEncrypted)
+ {
+ Log("Server communication is now encrypted");
+ m_ServerState = csEncryptedUnderstood;
+ DataLog(m_ServerEncryptionBuffer.data(), m_ServerEncryptionBuffer.size(), "Sending the queued data to server (%u bytes):", m_ServerEncryptionBuffer.size());
+ SERVERENCRYPTSEND(m_ServerEncryptionBuffer.data(), m_ServerEncryptionBuffer.size());
+ m_ServerEncryptionBuffer.clear();
+ }
+ COPY_TO_CLIENT();
+ Log("Client is now in protocol state Game.");
+ m_ClientProtocolState = 3;
+ return true;
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// packet handling, server-side, game:
+
bool cConnection::HandleServerAttachEntity(void)
{
HANDLE_SERVER_PACKET_READ(ReadBEInt, int, EntityID);
@@ -1341,48 +1558,6 @@ bool cConnection::HandleServerDestroyEntities(void)
-bool cConnection::HandleServerEncryptionKeyRequest(void)
-{
- // Read the packet from the server:
- HANDLE_SERVER_PACKET_READ(ReadBEUTF16String16, AString, ServerID);
- HANDLE_SERVER_PACKET_READ(ReadBEShort, short, PublicKeyLength);
- AString PublicKey;
- if (!m_ServerBuffer.ReadString(PublicKey, PublicKeyLength))
- {
- return false;
- }
- HANDLE_SERVER_PACKET_READ(ReadBEShort, short, NonceLength);
- AString Nonce;
- if (!m_ServerBuffer.ReadString(Nonce, NonceLength))
- {
- return false;
- }
- Log("Got PACKET_ENCRYPTION_KEY_REQUEST from the SERVER:");
- Log(" ServerID = %s", ServerID.c_str());
-
- // Reply to the server:
- SendEncryptionKeyResponse(PublicKey, Nonce);
-
- // Send a 0xFD Encryption Key Request http://wiki.vg/Protocol#0xFD to the client, using our own key:
- Log("Sending PACKET_ENCRYPTION_KEY_REQUEST to the CLIENT");
- AString key;
- StringSink sink(key); // GCC won't allow inline instantiation in the following line, damned temporary refs
- m_Server.GetPublicKey().Save(sink);
- cByteBuffer ToClient(512);
- ToClient.WriteByte (PACKET_ENCRYPTION_KEY_REQUEST);
- ToClient.WriteBEUTF16String16(ServerID);
- ToClient.WriteBEShort ((short)key.size());
- ToClient.WriteBuf (key.data(), key.size());
- ToClient.WriteBEShort (4);
- ToClient.WriteBEInt (m_Nonce); // Using 'this' as the cryptographic nonce, so that we don't have to generate one each time :)
- CLIENTSEND(ToClient);
- return true;
-}
-
-
-
-
-
bool cConnection::HandleServerEntity(void)
{
HANDLE_SERVER_PACKET_READ(ReadBEInt, int, EntityID);
@@ -1667,26 +1842,6 @@ bool cConnection::HandleServerKeepAlive(void)
-bool cConnection::HandleServerEncryptionKeyResponse(void)
-{
- HANDLE_SERVER_PACKET_READ(ReadBEInt, int, Lengths);
- if (Lengths != 0)
- {
- Log("Lengths are not zero!");
- return true;
- }
- Log("Server communication is now encrypted");
- m_ServerState = csEncryptedUnderstood;
- DataLog(m_ServerEncryptionBuffer.data(), m_ServerEncryptionBuffer.size(), "Sending the queued data to server (%u bytes):", m_ServerEncryptionBuffer.size());
- SERVERENCRYPTSEND(m_ServerEncryptionBuffer.data(), m_ServerEncryptionBuffer.size());
- m_ServerEncryptionBuffer.clear();
- return true;
-}
-
-
-
-
-
bool cConnection::HandleServerKick(void)
{
HANDLE_SERVER_PACKET_READ(ReadBEUTF16String16, AString, Reason);
@@ -2267,6 +2422,46 @@ bool cConnection::HandleServerSpawnPickup(void)
+bool cConnection::HandleServerStatusPing(void)
+{
+ HANDLE_SERVER_PACKET_READ(ReadBEInt64, Int64, Time);
+ Log("Received server's ping response:");
+ Log(" Time = %lld", Time);
+ COPY_TO_CLIENT();
+ return true;
+}
+
+
+
+
+
+bool cConnection::HandleServerStatusResponse(void)
+{
+ HANDLE_SERVER_PACKET_READ(ReadVarUTF8String, AString, Response);
+ Log("Received server's status response:");
+ Log(" Response: %s", Response.c_str());
+
+ // Modify the response to show that it's being proto-proxied:
+ size_t idx = Response.find("\"description\":\"");
+ if (idx != AString::npos)
+ {
+ Response.assign(Response.substr(0, idx + 15) + "ProtoProxy: " + Response.substr(idx + 15));
+ }
+ cByteBuffer Packet(1000);
+ Packet.WriteVarInt(0); // Packet type - status response
+ Packet.WriteVarUTF8String(Response);
+ AString Pkt;
+ Packet.ReadAll(Pkt);
+ cByteBuffer ToClient(1000);
+ ToClient.WriteVarUTF8String(Pkt);
+ CLIENTSEND(ToClient);
+ return true;
+}
+
+
+
+
+
bool cConnection::HandleServerTabCompletion(void)
{
HANDLE_SERVER_PACKET_READ(ReadBEUTF16String16, AString, Results);
@@ -2674,68 +2869,14 @@ void cConnection::SendEncryptionKeyResponse(const AString & a_ServerPublicKey, c
// Send the packet to the server:
Log("Sending PACKET_ENCRYPTION_KEY_RESPONSE to the SERVER");
cByteBuffer ToServer(1024);
- ToServer.WriteByte(PACKET_ENCRYPTION_KEY_RESPONSE);
+ ToServer.WriteByte(0x01); // To server: Encryption key response
ToServer.WriteBEShort(EncryptedLength);
ToServer.WriteBuf(EncryptedSecret, EncryptedLength);
ToServer.WriteBEShort(EncryptedLength);
ToServer.WriteBuf(EncryptedNonce, EncryptedLength);
SERVERSEND(ToServer);
- m_ServerState = csWaitingForEncryption;
-}
-
-
-
-
-
-void cConnection::StartClientEncryption(const AString & a_EncKey, const AString & a_EncNonce)
-{
- // Decrypt EncNonce using privkey
- RSAES<PKCS1v15>::Decryptor rsaDecryptor(m_Server.GetPrivateKey());
- time_t CurTime = time(NULL);
- RandomPool rng;
- rng.Put((const byte *)&CurTime, sizeof(CurTime));
- byte DecryptedNonce[MAX_ENC_LEN];
- DecodingResult res = rsaDecryptor.Decrypt(rng, (const byte *)a_EncNonce.data(), a_EncNonce.size(), DecryptedNonce);
- if (!res.isValidCoding || (res.messageLength != 4))
- {
- Log("Client: Bad nonce length");
- return;
- }
- if (ntohl(*((int *)DecryptedNonce)) != m_Nonce)
- {
- Log("Bad nonce value");
- return;
- }
-
- // Decrypt the symmetric encryption key using privkey:
- byte SharedSecret[MAX_ENC_LEN];
- res = rsaDecryptor.Decrypt(rng, (const byte *)a_EncKey.data(), a_EncKey.size(), SharedSecret);
- if (!res.isValidCoding || (res.messageLength != 16))
- {
- Log("Bad key length");
- return;
- }
-
- // Send encryption key response:
- cByteBuffer ToClient(6);
- ToClient.WriteByte((char)0xfc);
- ToClient.WriteBEShort(0);
- ToClient.WriteBEShort(0);
- CLIENTSEND(ToClient);
-
- // Start the encryption:
- m_ClientEncryptor.SetKey(SharedSecret, 16, MakeParameters(Name::IV(), ConstByteArrayParameter(SharedSecret, 16))(Name::FeedbackSize(), 1));
- m_ClientDecryptor.SetKey(SharedSecret, 16, MakeParameters(Name::IV(), ConstByteArrayParameter(SharedSecret, 16))(Name::FeedbackSize(), 1));
- Log("Client connection is now encrypted");
- m_ClientState = csEncryptedUnderstood;
-
- // Send the queued data:
- DataLog(m_ClientEncryptionBuffer.data(), m_ClientEncryptionBuffer.size(), "Sending the queued data to client (%u bytes):", m_ClientEncryptionBuffer.size());
- CLIENTENCRYPTSEND(m_ClientEncryptionBuffer.data(), m_ClientEncryptionBuffer.size());
- m_ClientEncryptionBuffer.clear();
-
- // Handle all postponed server data
- DecodeServersPackets(NULL, 0);
+ m_ServerState = csEncryptedUnderstood;
+ m_IsServerEncrypted = true;
}
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