Major design change in network protocol: Player information is now requested by clients whenever it is needed. The server only sends player ids. The client has a cache with player information.

src/net/clientcallback.h

@@ -42,6 +42,7 @@ public:
 	virtual void SignalNetClientGameStart(boost::shared_ptr<Game> game) = 0;
 	virtual void SignalNetClientSelfJoined(const std::string &playerName, PlayerRights rights) = 0;
 	virtual void SignalNetClientPlayerJoined(const std::string &playerName, PlayerRights rights) = 0;
+	virtual void SignalNetClientPlayerChanged(const std::string &oldPlayerName, const std::string &newPlayerName) = 0;
 	virtual void SignalNetClientPlayerLeft(const std::string &playerName) = 0;
 
 	virtual void SignalNetClientChatMsg(const std::string &playerName, const std::string &msg) = 0;

src/net/clientthread.h

@@ -27,7 +27,7 @@
 #include <gamedata.h>
 #include <string>
 #include <memory>
-#include <boost/shared_ptr.hpp>
+#include <boost/shared_ptr.hpp>
 
 class ClientContext;
 class ClientState;
@@ -68,6 +68,7 @@ public:
 protected:
 	typedef std::map<unsigned, std::string> GameMap;
 	typedef std::list<boost::shared_ptr<NetPacket> > NetPacketList;
+	typedef std::map<unsigned, PlayerInfo> PlayerInfoMap;
 
 	// Main function of the thread.
 	virtual void Main();
@@ -75,6 +76,10 @@ protected:
 	void AddPacket(boost::shared_ptr<NetPacket> packet);
 	void SendPacketLoop();
 
+	PlayerInfo GetCachedPlayerInfo(unsigned id) const;
+	void RequestPlayerInfo(unsigned id, const PlayerInfo &tempInfo);
+	void SetPlayerInfo(unsigned id, const PlayerInfo &info);
+
 	const ClientContext &GetContext() const;
 	ClientContext &GetContext();
 
@@ -132,6 +137,7 @@ private:
 	mutable boost::mutex m_gameMapMutex;
 
 	boost::shared_ptr<Game> m_game;
+	PlayerInfoMap m_playerInfoMap;
 
 	unsigned m_curGameId;
 	unsigned m_guiPlayerId;

src/net/common/clientstate.cpp

@@ -31,6 +31,8 @@
 #include <game.h>
 #include <playerinterface.h>
 
+#include <sstream>
+
 using namespace std;
 
 #define CLIENT_WAIT_TIMEOUT_MSEC	50
@@ -378,7 +380,13 @@ AbstractClientStateReceiving::Process(ClientThread &client)
 
 	if (tmpPacket.get())
 	{
-		if (tmpPacket->ToNetPacketError())
+		if (tmpPacket->ToNetPacketPlayerInfo())
+		{
+			NetPacketPlayerInfo::Data infoData;
+			tmpPacket->ToNetPacketPlayerInfo()->GetData(infoData);
+			client.SetPlayerInfo(infoData.playerId, infoData.playerInfo);
+		}
+		else if (tmpPacket->ToNetPacketError())
 		{
 			// Server reported an error.
 			NetPacketError::Data errorData;
@@ -564,9 +572,27 @@ ClientStateWaitGame::InternalProcess(ClientThread &client, boost::shared_ptr<Net
 		NetPacketPlayerJoined::Data netPlayerData;
 		packet->ToNetPacketPlayerJoined()->GetData(netPlayerData);
 
-		boost::shared_ptr<PlayerData> playerData(
-			new PlayerData(netPlayerData.playerId, 0, netPlayerData.ptype, netPlayerData.prights));
-		playerData->SetName(netPlayerData.playerName);
+		boost::shared_ptr<PlayerData> playerData;
+		try
+		{
+			PlayerInfo info = client.GetCachedPlayerInfo(netPlayerData.playerId);
+			playerData.reset(
+				new PlayerData(netPlayerData.playerId, 0, info.ptype, netPlayerData.prights));
+			playerData->SetName(info.playerName);
+		} catch (const NetException &)
+		{
+			ostringstream name;
+			name << "#" << netPlayerData.playerId;
+
+			// Request player info.
+			PlayerInfo info;
+			info.playerName = name.str();
+			client.RequestPlayerInfo(netPlayerData.playerId, info);
+			// Use temporary data until the PlayerInfo request is completed.
+			playerData.reset(
+				new PlayerData(netPlayerData.playerId, 0, info.ptype, netPlayerData.prights));
+			playerData->SetName(info.playerName);
+		}
 		client.AddPlayerData(playerData);
 	}
 

src/net/common/clientthread.cpp

@@ -300,6 +300,53 @@ ClientThread::SendPacketLoop()
 	}
 }
 
+PlayerInfo
+ClientThread::GetCachedPlayerInfo(unsigned id) const
+{
+	PlayerInfoMap::const_iterator pos = m_playerInfoMap.find(id);
+	if (pos == m_playerInfoMap.end())
+		throw NetException(ERR_NET_UNKNOWN_PLAYER_ID, 0);
+	return pos->second;
+}
+
+void
+ClientThread::RequestPlayerInfo(unsigned id, const PlayerInfo &tempInfo)
+{
+	boost::shared_ptr<NetPacket> req(new NetPacketRetrievePlayerInfo);
+	NetPacketRetrievePlayerInfo::Data reqData;
+	reqData.playerId = id;
+	static_cast<NetPacketRetrievePlayerInfo *>(req.get())->SetData(reqData);
+	GetSender().Send(GetContext().GetSocket(), req);
+
+	m_playerInfoMap[id] = tempInfo;
+}
+
+void
+ClientThread::SetPlayerInfo(unsigned id, const PlayerInfo &info)
+{
+	PlayerInfoMap::iterator pos = m_playerInfoMap.find(id);
+
+	// Update info cache.
+	if (pos != m_playerInfoMap.end())
+	{
+		GetCallback().SignalNetClientPlayerChanged(pos->second.playerName, info.playerName);
+
+		pos->second = info;
+	}
+	else
+	{
+		m_playerInfoMap.insert(PlayerInfoMap::value_type(id, info));
+	}
+
+	// Update player data for current game.
+	boost::shared_ptr<PlayerData> playerData = GetPlayerDataByUniqueId(id);
+	if (playerData.get())
+	{
+		playerData->SetName(info.playerName);
+		playerData->SetType(info.ptype);
+	}
+}
+
 const ClientContext &
 ClientThread::GetContext() const
 {

src/net/common/netpacket.cpp

@@ -31,26 +31,30 @@ using namespace std;
 #define NET_TYPE_INIT_ACK						0x0002
 #define NET_TYPE_GAME_LIST_NEW					0x0003
 #define NET_TYPE_GAME_LIST_UPDATE				0x0004
-#define NET_TYPE_CREATE_GAME					0x0005
-#define NET_TYPE_JOIN_GAME						0x0006
-#define NET_TYPE_JOIN_GAME_ACK					0x0007
-#define NET_TYPE_PLAYER_JOINED					0x0008
-#define NET_TYPE_PLAYER_LEFT					0x0009
-#define NET_TYPE_KICK_PLAYER					0x000A
-#define NET_TYPE_START_EVENT					0x000B
-#define NET_TYPE_GAME_START						0x000C
-#define NET_TYPE_HAND_START						0x000D
-#define NET_TYPE_PLAYERS_TURN					0x000E
-#define NET_TYPE_PLAYERS_ACTION					0x000F
-#define NET_TYPE_PLAYERS_ACTION_DONE			0x0010
-#define NET_TYPE_PLAYERS_ACTION_REJECTED		0x0011
-#define NET_TYPE_DEAL_FLOP_CARDS				0x0012
-#define NET_TYPE_DEAL_TURN_CARD					0x0013
-#define NET_TYPE_DEAL_RIVER_CARD				0x0014
-#define NET_TYPE_ALL_IN_SHOW_CARDS				0x0015
-#define NET_TYPE_END_OF_HAND_SHOW_CARDS			0x0016
-#define NET_TYPE_END_OF_HAND_HIDE_CARDS			0x0017
-#define NET_TYPE_END_OF_GAME					0x0018
+#define NET_TYPE_GAME_LIST_PLAYER_JOINED		0x0005
+#define NET_TYPE_GAME_LIST_PLAYER_LEFT			0x0006
+#define NET_TYPE_RETRIEVE_PLAYER_INFO			0x0007
+#define NET_TYPE_PLAYER_INFO					0x0008
+#define NET_TYPE_CREATE_GAME					0x0009
+#define NET_TYPE_JOIN_GAME						0x000A
+#define NET_TYPE_JOIN_GAME_ACK					0x000B
+#define NET_TYPE_PLAYER_JOINED					0x000C
+#define NET_TYPE_PLAYER_LEFT					0x000D
+#define NET_TYPE_KICK_PLAYER					0x000E
+#define NET_TYPE_START_EVENT					0x000F
+#define NET_TYPE_GAME_START						0x0010
+#define NET_TYPE_HAND_START						0x0011
+#define NET_TYPE_PLAYERS_TURN					0x0012
+#define NET_TYPE_PLAYERS_ACTION					0x0013
+#define NET_TYPE_PLAYERS_ACTION_DONE			0x0014
+#define NET_TYPE_PLAYERS_ACTION_REJECTED		0x0015
+#define NET_TYPE_DEAL_FLOP_CARDS				0x0016
+#define NET_TYPE_DEAL_TURN_CARD					0x0017
+#define NET_TYPE_DEAL_RIVER_CARD				0x0018
+#define NET_TYPE_ALL_IN_SHOW_CARDS				0x0019
+#define NET_TYPE_END_OF_HAND_SHOW_CARDS			0x001A
+#define NET_TYPE_END_OF_HAND_HIDE_CARDS			0x001B
+#define NET_TYPE_END_OF_GAME					0x001C
 
 #define NET_TYPE_SEND_CHAT_TEXT					0x0200
 #define NET_TYPE_CHAT_TEXT						0x0201
@@ -108,6 +112,13 @@ struct GCC_PACKED NetPacketGameListNewData
 	u_int32_t			gameId;
 	u_int16_t			gameMode;
 	u_int16_t			gameNameLength;
+	u_int16_t			maxNumberOfPlayers;
+	u_int16_t			smallBlind;
+	u_int16_t			handsBeforeRaise;
+	u_int16_t			proposedGuiSpeed;
+	u_int16_t			playerActionTimeout;
+	u_int16_t			reserved;
+	u_int32_t			startMoney;
 };
 
 struct GCC_PACKED NetPacketGameListUpdateData
@@ -118,6 +129,34 @@ struct GCC_PACKED NetPacketGameListUpdateData
 	u_int16_t			reserved;
 };
 
+struct GCC_PACKED NetPacketGameListPlayerJoinedData
+{
+	NetPacketHeader		head;
+	u_int32_t			gameId;
+	u_int32_t			playerId;
+};
+
+struct GCC_PACKED NetPacketGameListPlayerLeftData
+{
+	NetPacketHeader		head;
+	u_int32_t			gameId;
+	u_int32_t			playerId;
+};
+
+struct GCC_PACKED NetPacketRetrievePlayerInfoData
+{
+	NetPacketHeader		head;
+	u_int32_t			playerId;
+};
+
+struct GCC_PACKED NetPacketPlayerInfoData
+{
+	NetPacketHeader		head;
+	u_int32_t			playerId;
+	u_int16_t			playerFlags;
+	u_int16_t			playerNameLength;
+};
+
 struct GCC_PACKED NetPacketCreateGameData
 {
 	NetPacketHeader		head;
@@ -157,9 +196,7 @@ struct GCC_PACKED NetPacketPlayerJoinedData
 {
 	NetPacketHeader		head;
 	u_int32_t			playerId;
-	u_int16_t			playerFlags;
 	u_int16_t			playerRights;
-	u_int16_t			playerNameLength;
 	u_int16_t			reserved;
 };
 
@@ -377,6 +414,18 @@ NetPacket::Create(char *data, unsigned &dataSize)
 				case NET_TYPE_GAME_LIST_UPDATE:
 					tmpPacket = boost::shared_ptr<NetPacket>(new NetPacketGameListUpdate);
 					break;
+				case NET_TYPE_GAME_LIST_PLAYER_JOINED:
+					tmpPacket = boost::shared_ptr<NetPacket>(new NetPacketGameListPlayerJoined);
+					break;
+				case NET_TYPE_GAME_LIST_PLAYER_LEFT:
+					tmpPacket = boost::shared_ptr<NetPacket>(new NetPacketGameListPlayerLeft);
+					break;
+				case NET_TYPE_RETRIEVE_PLAYER_INFO:
+					tmpPacket = boost::shared_ptr<NetPacket>(new NetPacketRetrievePlayerInfo);
+					break;
+				case NET_TYPE_PLAYER_INFO:
+					tmpPacket = boost::shared_ptr<NetPacket>(new NetPacketPlayerInfo);
+					break;
 				case NET_TYPE_CREATE_GAME:
 					tmpPacket = boost::shared_ptr<NetPacket>(new NetPacketCreateGame);
 					break;
@@ -554,6 +603,30 @@ NetPacket::ToNetPacketGameListUpdate() const
 	return NULL;
 }
 
+const NetPacketGameListPlayerJoined *
+NetPacket::ToNetPacketGameListPlayerJoined() const
+{
+	return NULL;
+}
+
+const NetPacketGameListPlayerLeft *
+NetPacket::ToNetPacketGameListPlayerLeft() const
+{
+	return NULL;
+}
+
+const NetPacketRetrievePlayerInfo *
+NetPacket::ToNetPacketRetrievePlayerInfo() const
+{
+	return NULL;
+}
+
+const NetPacketPlayerInfo *
+NetPacket::ToNetPacketPlayerInfo() const
+{
+	return NULL;
+}
+
 const NetPacketCreateGame *
 NetPacket::ToNetPacketCreateGame() const
 {
@@ -951,9 +1024,16 @@ NetPacketGameListNew::SetData(const NetPacketGameListNew::Data &inData)
 	NetPacketGameListNewData *tmpData = (NetPacketGameListNewData *)GetRawData();
 
 	// Set the data.
-	tmpData->gameId			= htonl(inData.gameId);
-	tmpData->gameMode		= htons(inData.gameMode);
-	tmpData->gameNameLength = htons(gameNameLen);
+	tmpData->gameId					= htonl(inData.gameId);
+	tmpData->gameMode				= htons(inData.gameMode);
+	tmpData->gameNameLength			= htons(gameNameLen);
+	tmpData->maxNumberOfPlayers		= htons(inData.gameData.maxNumberOfPlayers);
+	tmpData->smallBlind				= htons(inData.gameData.smallBlind);
+	tmpData->handsBeforeRaise		= htons(inData.gameData.handsBeforeRaise);
+	tmpData->proposedGuiSpeed		= htons(inData.gameData.guiSpeed);
+	tmpData->playerActionTimeout	= htons(inData.gameData.playerActionTimeoutSec);
+	tmpData->startMoney				= htonl(inData.gameData.startMoney);
+
 	char *gameNamePtr = (char *)tmpData + sizeof(NetPacketGameListNewData);
 	memcpy(gameNamePtr, inData.gameName.c_str(), gameNameLen);
 
@@ -967,9 +1047,16 @@ NetPacketGameListNew::GetData(NetPacketGameListNew::Data &outData) const
 	// We assume that the data is valid. Validity has already been checked.
 	NetPacketGameListNewData *tmpData = (NetPacketGameListNewData *)GetRawData();
 
-	outData.gameId			= ntohl(tmpData->gameId);
-	outData.gameMode		= static_cast<GameMode>(ntohs(tmpData->gameMode));
-	u_int16_t gameNameLen	= ntohs(tmpData->gameNameLength);
+	outData.gameId							= ntohl(tmpData->gameId);
+	outData.gameMode						= static_cast<GameMode>(ntohs(tmpData->gameMode));
+	u_int16_t gameNameLen					= ntohs(tmpData->gameNameLength);
+	outData.gameData.maxNumberOfPlayers		= ntohs(tmpData->maxNumberOfPlayers);
+	outData.gameData.smallBlind				= ntohs(tmpData->smallBlind);
+	outData.gameData.handsBeforeRaise		= ntohs(tmpData->handsBeforeRaise);
+	outData.gameData.guiSpeed				= ntohs(tmpData->proposedGuiSpeed);
+	outData.gameData.playerActionTimeoutSec	= ntohs(tmpData->playerActionTimeout);
+	outData.gameData.startMoney				= ntohl(tmpData->startMoney);
+
 	char *gameNamePtr = (char *)tmpData + sizeof(NetPacketGameListNewData);
 	outData.gameName = string(gameNamePtr, gameNameLen);
 }
@@ -1069,6 +1156,273 @@ NetPacketGameListUpdate::InternalCheck(const NetPacketHeader* data) const
 
 //-----------------------------------------------------------------------------
 
+NetPacketGameListPlayerJoined::NetPacketGameListPlayerJoined()
+: NetPacket(NET_TYPE_GAME_LIST_PLAYER_JOINED, sizeof(NetPacketGameListPlayerJoinedData), sizeof(NetPacketGameListPlayerJoinedData))
+{
+}
+
+NetPacketGameListPlayerJoined::~NetPacketGameListPlayerJoined()
+{
+}
+
+boost::shared_ptr<NetPacket>
+NetPacketGameListPlayerJoined::Clone() const
+{
+	boost::shared_ptr<NetPacket> newPacket(new NetPacketGameListPlayerJoined);
+	try
+	{
+		newPacket->SetRawData(GetRawData());
+	} catch (const NetException &)
+	{
+		// Need to return the new packet anyway.
+	}
+	return newPacket;
+}
+
+void
+NetPacketGameListPlayerJoined::SetData(const NetPacketGameListPlayerJoined::Data &inData)
+{
+	NetPacketGameListPlayerJoinedData *tmpData = (NetPacketGameListPlayerJoinedData *)GetRawData();
+
+	// Set the data.
+	tmpData->gameId			= htonl(inData.gameId);
+	tmpData->playerId		= htonl(inData.playerId);
+
+	// Check the packet - just in case.
+	Check(GetRawData());
+}
+
+void
+NetPacketGameListPlayerJoined::GetData(NetPacketGameListPlayerJoined::Data &outData) const
+{
+	// We assume that the data is valid. Validity has already been checked.
+	NetPacketGameListPlayerJoinedData *tmpData = (NetPacketGameListPlayerJoinedData *)GetRawData();
+
+	outData.gameId			= ntohl(tmpData->gameId);
+	outData.playerId		= ntohl(tmpData->playerId);
+}
+
+const NetPacketGameListPlayerJoined *
+NetPacketGameListPlayerJoined::ToNetPacketGameListPlayerJoined() const
+{
+	return this;
+}
+
+void
+NetPacketGameListPlayerJoined::InternalCheck(const NetPacketHeader* data) const
+{
+	// Nothing to do.
+}
+
+//-----------------------------------------------------------------------------
+
+NetPacketGameListPlayerLeft::NetPacketGameListPlayerLeft()
+: NetPacket(NET_TYPE_GAME_LIST_PLAYER_LEFT, sizeof(NetPacketGameListPlayerLeftData), sizeof(NetPacketGameListPlayerLeftData))
+{
+}
+
+NetPacketGameListPlayerLeft::~NetPacketGameListPlayerLeft()
+{
+}
+
+boost::shared_ptr<NetPacket>
+NetPacketGameListPlayerLeft::Clone() const
+{
+	boost::shared_ptr<NetPacket> newPacket(new NetPacketGameListPlayerLeft);
+	try
+	{
+		newPacket->SetRawData(GetRawData());
+	} catch (const NetException &)
+	{
+		// Need to return the new packet anyway.
+	}
+	return newPacket;
+}
+
+void
+NetPacketGameListPlayerLeft::SetData(const NetPacketGameListPlayerLeft::Data &inData)
+{
+	NetPacketGameListPlayerLeftData *tmpData = (NetPacketGameListPlayerLeftData *)GetRawData();
+
+	// Set the data.
+	tmpData->gameId			= htonl(inData.gameId);
+	tmpData->playerId		= htonl(inData.playerId);
+
+	// Check the packet - just in case.
+	Check(GetRawData());
+}
+
+void
+NetPacketGameListPlayerLeft::GetData(NetPacketGameListPlayerLeft::Data &outData) const
+{
+	// We assume that the data is valid. Validity has already been checked.
+	NetPacketGameListPlayerLeftData *tmpData = (NetPacketGameListPlayerLeftData *)GetRawData();
+
+	outData.gameId			= ntohl(tmpData->gameId);
+	outData.playerId		= ntohl(tmpData->playerId);
+}
+
+const NetPacketGameListPlayerLeft *
+NetPacketGameListPlayerLeft::ToNetPacketGameListPlayerLeft() const
+{
+	return this;
+}
+
+void
+NetPacketGameListPlayerLeft::InternalCheck(const NetPacketHeader* data) const
+{
+	// Nothing to do.
+}
+
+//-----------------------------------------------------------------------------
+
+NetPacketRetrievePlayerInfo::NetPacketRetrievePlayerInfo()
+: NetPacket(NET_TYPE_RETRIEVE_PLAYER_INFO, sizeof(NetPacketRetrievePlayerInfoData), sizeof(NetPacketRetrievePlayerInfoData))
+{
+}
+
+NetPacketRetrievePlayerInfo::~NetPacketRetrievePlayerInfo()
+{
+}
+
+boost::shared_ptr<NetPacket>
+NetPacketRetrievePlayerInfo::Clone() const
+{
+	boost::shared_ptr<NetPacket> newPacket(new NetPacketRetrievePlayerInfo);
+	try
+	{
+		newPacket->SetRawData(GetRawData());
+	} catch (const NetException &)
+	{
+		// Need to return the new packet anyway.
+	}
+	return newPacket;
+}
+
+void
+NetPacketRetrievePlayerInfo::SetData(const NetPacketRetrievePlayerInfo::Data &inData)
+{
+	NetPacketRetrievePlayerInfoData *tmpData = (NetPacketRetrievePlayerInfoData *)GetRawData();
+
+	// Set the data.
+	tmpData->playerId		= htonl(inData.playerId);
+
+	// Check the packet - just in case.
+	Check(GetRawData());
+}
+
+void
+NetPacketRetrievePlayerInfo::GetData(NetPacketRetrievePlayerInfo::Data &outData) const
+{
+	// We assume that the data is valid. Validity has already been checked.
+	NetPacketRetrievePlayerInfoData *tmpData = (NetPacketRetrievePlayerInfoData *)GetRawData();
+
+	outData.playerId		= ntohl(tmpData->playerId);
+}
+
+const NetPacketRetrievePlayerInfo *
+NetPacketRetrievePlayerInfo::ToNetPacketRetrievePlayerInfo() const
+{
+	return this;
+}
+
+void
+NetPacketRetrievePlayerInfo::InternalCheck(const NetPacketHeader* data) const
+{
+	// Nothing to do.
+}
+
+//-----------------------------------------------------------------------------
+
+NetPacketPlayerInfo::NetPacketPlayerInfo()
+: NetPacket(NET_TYPE_PLAYER_INFO, sizeof(NetPacketPlayerInfoData), MAX_PACKET_SIZE)
+{
+}
+
+NetPacketPlayerInfo::~NetPacketPlayerInfo()
+{
+}
+
+boost::shared_ptr<NetPacket>
+NetPacketPlayerInfo::Clone() const
+{
+	boost::shared_ptr<NetPacket> newPacket(new NetPacketPlayerInfo);
+	try
+	{
+		newPacket->SetRawData(GetRawData());
+	} catch (const NetException &)
+	{
+		// Need to return the new packet anyway.
+	}
+	return newPacket;
+}
+
+void
+NetPacketPlayerInfo::SetData(const NetPacketPlayerInfo::Data &inData)
+{
+	u_int16_t playerNameLen = (u_int16_t)inData.playerInfo.playerName.length();
+
+	if (!playerNameLen || playerNameLen > MAX_NAME_SIZE)
+		throw NetException(ERR_NET_INVALID_PLAYER_NAME, 0);
+
+	// Resize the packet so that the data fits in.
+	Resize((u_int16_t)
+		(sizeof(NetPacketPlayerInfoData) + ADD_PADDING(playerNameLen)));
+
+	NetPacketPlayerInfoData *tmpData = (NetPacketPlayerInfoData *)GetRawData();
+
+	// Set the data.
+	tmpData->playerId			= htonl(inData.playerId);
+	tmpData->playerFlags		= htons(inData.playerInfo.ptype);
+	tmpData->playerNameLength	= htons(playerNameLen);
+	char *namePtr = (char *)tmpData + sizeof(NetPacketPlayerInfoData);
+	memcpy(namePtr, inData.playerInfo.playerName.c_str(), playerNameLen);
+
+	// Check the packet - just in case.
+	Check(GetRawData());
+}
+
+void
+NetPacketPlayerInfo::GetData(NetPacketPlayerInfo::Data &outData) const
+{
+	// We assume that the data is valid. Validity has already been checked.
+	NetPacketPlayerInfoData *tmpData = (NetPacketPlayerInfoData *)GetRawData();
+
+	outData.playerId = ntohl(tmpData->playerId);
+	outData.playerInfo.ptype = static_cast<PlayerType>(ntohs(tmpData->playerFlags));
+	char *namePtr = (char *)tmpData + sizeof(NetPacketPlayerInfoData);
+	outData.playerInfo.playerName = string(namePtr, ntohs(tmpData->playerNameLength));
+}
+
+const NetPacketPlayerInfo *
+NetPacketPlayerInfo::ToNetPacketPlayerInfo() const
+{
+	return this;
+}
+
+void
+NetPacketPlayerInfo::InternalCheck(const NetPacketHeader* data) const
+{
+	u_int16_t dataLen = ntohs(data->length);
+	NetPacketPlayerInfoData *tmpData = (NetPacketPlayerInfoData *)data;
+	int playerNameLength = ntohs(tmpData->playerNameLength);
+	// Exact checking this time.
+	if (dataLen !=
+		sizeof(NetPacketPlayerInfoData)
+		+ ADD_PADDING(playerNameLength))
+	{
+		throw NetException(ERR_SOCK_INVALID_PACKET, 0);
+	}
+	// Check string sizes.
+	if (!playerNameLength
+		|| playerNameLength > MAX_NAME_SIZE)
+	{
+		throw NetException(ERR_SOCK_INVALID_PACKET, 0);
+	}
+}
+
+//-----------------------------------------------------------------------------
+
 NetPacketCreateGame::NetPacketCreateGame()
 : NetPacket(NET_TYPE_CREATE_GAME, sizeof(NetPacketCreateGameData), MAX_PACKET_SIZE)
 {
@@ -1377,7 +1731,7 @@ NetPacketJoinGameAck::InternalCheck(const NetPacketHeader* data) const
 //-----------------------------------------------------------------------------
 
 NetPacketPlayerJoined::NetPacketPlayerJoined()
-: NetPacket(NET_TYPE_PLAYER_JOINED, sizeof(NetPacketPlayerJoinedData), MAX_PACKET_SIZE)
+: NetPacket(NET_TYPE_PLAYER_JOINED, sizeof(NetPacketPlayerJoinedData), sizeof(NetPacketPlayerJoinedData))
 {
 }
 
@@ -1402,24 +1756,11 @@ NetPacketPlayerJoined::Clone() const
 void
 NetPacketPlayerJoined::SetData(const NetPacketPlayerJoined::Data &inData)
 {
-	u_int16_t playerNameLen = (u_int16_t)inData.playerName.length();
-
-	if (!playerNameLen || playerNameLen > MAX_NAME_SIZE)
-		throw NetException(ERR_NET_INVALID_PLAYER_NAME, 0);
-
-	// Resize the packet so that the data fits in.
-	Resize((u_int16_t)
-		(sizeof(NetPacketPlayerJoinedData) + ADD_PADDING(playerNameLen)));
-
 	NetPacketPlayerJoinedData *tmpData = (NetPacketPlayerJoinedData *)GetRawData();
 
 	// Set the data.
 	tmpData->playerId			= htonl(inData.playerId);
-	tmpData->playerFlags		= htons(inData.ptype);
 	tmpData->playerRights		= htons(inData.prights);
-	tmpData->playerNameLength	= htons(playerNameLen);
-	char *namePtr = (char *)tmpData + sizeof(NetPacketPlayerJoinedData);
-	memcpy(namePtr, inData.playerName.c_str(), playerNameLen);
 
 	// Check the packet - just in case.
 	Check(GetRawData());
@@ -1432,10 +1773,7 @@ NetPacketPlayerJoined::GetData(NetPacketPlayerJoined::Data &outData) const
 	NetPacketPlayerJoinedData *tmpData = (NetPacketPlayerJoinedData *)GetRawData();
 
 	outData.playerId = ntohl(tmpData->playerId);
-	outData.ptype = static_cast<PlayerType>(ntohs(tmpData->playerFlags));
 	outData.prights = static_cast<PlayerRights>(ntohs(tmpData->playerRights));
-	char *namePtr = (char *)tmpData + sizeof(NetPacketPlayerJoinedData);
-	outData.playerName = string(namePtr, ntohs(tmpData->playerNameLength));
 }
 
 const NetPacketPlayerJoined *
@@ -1447,22 +1785,7 @@ NetPacketPlayerJoined::ToNetPacketPlayerJoined() const
 void
 NetPacketPlayerJoined::InternalCheck(const NetPacketHeader* data) const
 {
-	u_int16_t dataLen = ntohs(data->length);
-	NetPacketPlayerJoinedData *tmpData = (NetPacketPlayerJoinedData *)data;
-	int playerNameLength = ntohs(tmpData->playerNameLength);
-	// Exact checking this time.
-	if (dataLen !=
-		sizeof(NetPacketPlayerJoinedData)
-		+ ADD_PADDING(playerNameLength))
-	{
-		throw NetException(ERR_SOCK_INVALID_PACKET, 0);
-	}
-	// Check string sizes.
-	if (!playerNameLength
-		|| playerNameLength > MAX_NAME_SIZE)
-	{
-		throw NetException(ERR_SOCK_INVALID_PACKET, 0);
-	}
+	// Nothing to do.
 }
 
 //-----------------------------------------------------------------------------

src/net/common/servergamestate.cpp

@@ -148,8 +148,26 @@ AbstractServerGameStateReceiving::Process(ServerGameThread &server)
 		// Process packet if one was received.
 		if (packet.get())
 		{
+			if (packet->ToNetPacketRetrievePlayerInfo())
+			{
+				NetPacketRetrievePlayerInfo::Data reqData;
+				packet->ToNetPacketRetrievePlayerInfo()->GetData(reqData);
+
+				SessionWrapper tmpSession = server.GetSessionManager().GetSessionByUniquePlayerId(reqData.playerId);
+				if (tmpSession.sessionData.get() && tmpSession.playerData.get())
+				{
+					// Send player info to client.
+					boost::shared_ptr<NetPacket> info(new NetPacketPlayerInfo);
+					NetPacketPlayerInfo::Data infoData;
+					infoData.playerId = tmpSession.playerData->GetUniqueId();
+					infoData.playerInfo.ptype = tmpSession.playerData->GetType();
+					infoData.playerInfo.playerName = tmpSession.playerData->GetName();
+					static_cast<NetPacketPlayerInfo *>(info.get())->SetData(infoData);
+					server.GetSender().Send(session.sessionData->GetSocket(), info);
+				}
+			}
 			// Chat text is always allowed.
-			if (packet->ToNetPacketSendChatText())
+			else if (packet->ToNetPacketSendChatText())
 			{
 				if (session.playerData.get()) // Only forward if this player is known.
 				{
@@ -312,8 +330,6 @@ ServerGameStateInit::CreateNetPacketPlayerJoined(const PlayerData &playerData)
 	boost::shared_ptr<NetPacket> thisPlayerJoined(new NetPacketPlayerJoined);
 	NetPacketPlayerJoined::Data thisPlayerJoinedData;
 	thisPlayerJoinedData.playerId = playerData.GetUniqueId();
-	thisPlayerJoinedData.playerName = playerData.GetName();
-	thisPlayerJoinedData.ptype = playerData.GetType();
 	thisPlayerJoinedData.prights = playerData.GetRights();
 	static_cast<NetPacketPlayerJoined *>(thisPlayerJoined.get())->SetData(thisPlayerJoinedData);
 	return thisPlayerJoined;

src/net/common/serverlobbythread.cpp

@@ -190,7 +190,9 @@ ServerLobbyThread::ProcessLoop()
 				SessionError(session, ERR_SOCK_INVALID_STATE);
 			else
 			{
-				if (packet->ToNetPacketCreateGame())
+				if (packet->ToNetPacketRetrievePlayerInfo())
+					HandleNetPacketRetrievePlayerInfo(session, *packet->ToNetPacketRetrievePlayerInfo());
+				else if (packet->ToNetPacketCreateGame())
 					HandleNetPacketCreateGame(session, *packet->ToNetPacketCreateGame());
 				else if (packet->ToNetPacketJoinGame())
 					HandleNetPacketJoinGame(session, *packet->ToNetPacketJoinGame());
@@ -266,6 +268,41 @@ ServerLobbyThread::HandleNetPacketInit(SessionWrapper session, const NetPacketIn
 	session.sessionData->SetState(SessionData::Established);
 }
 
+void
+ServerLobbyThread::HandleNetPacketRetrievePlayerInfo(SessionWrapper session, const NetPacketRetrievePlayerInfo &tmpPacket)
+{
+	NetPacketRetrievePlayerInfo::Data request;
+	tmpPacket.GetData(request);
+
+	// Find player in lobby or in a game.
+	SessionWrapper tmpSession = m_sessionManager.GetSessionByUniquePlayerId(request.playerId);
+	if (!tmpSession.sessionData.get() || !tmpSession.playerData.get())
+	{
+		GameMap::const_iterator game_i = m_gameMap.begin();
+		GameMap::const_iterator game_end = m_gameMap.end();
+		while (game_i != game_end)
+		{
+			tmpSession = game_i->second->GetSessionManager().GetSessionByUniquePlayerId(request.playerId);
+			if (tmpSession.sessionData.get() && tmpSession.playerData.get())
+				break;
+			++game_i;
+		}
+	}
+
+	if (tmpSession.sessionData.get() && tmpSession.playerData.get())
+	{
+		// Send player info to client.
+		boost::shared_ptr<NetPacket> info(new NetPacketPlayerInfo);
+		NetPacketPlayerInfo::Data infoData;
+		infoData.playerId = tmpSession.playerData->GetUniqueId();
+		infoData.playerInfo.ptype = tmpSession.playerData->GetType();
+		infoData.playerInfo.playerName = tmpSession.playerData->GetName();
+		static_cast<NetPacketPlayerInfo *>(info.get())->SetData(infoData);
+		GetSender().Send(session.sessionData->GetSocket(), info);
+	}
+	// TODO: handle error
+}
+
 void
 ServerLobbyThread::HandleNetPacketCreateGame(SessionWrapper session, const NetPacketCreateGame &tmpPacket)
 {
@@ -517,6 +554,7 @@ ServerLobbyThread::CreateNetPacketGameListNew(const ServerGameThread &game)
 	packetData.gameId = game.GetId();
 	packetData.gameMode = GAME_MODE_CREATED;
 	packetData.gameName = game.GetName();
+	packetData.gameData = game.GetGameData();
 	static_cast<NetPacketGameListNew *>(packet.get())->SetData(packetData);
 	return packet;
 }

src/net/netpacket.h

@@ -44,6 +44,10 @@ class NetPacketInit;
 class NetPacketInitAck;
 class NetPacketGameListNew;
 class NetPacketGameListUpdate;
+class NetPacketGameListPlayerJoined;
+class NetPacketGameListPlayerLeft;
+class NetPacketRetrievePlayerInfo;
+class NetPacketPlayerInfo;
 class NetPacketCreateGame;
 class NetPacketJoinGame;
 class NetPacketJoinGameAck;
@@ -89,6 +93,10 @@ public:
 	virtual const NetPacketInitAck *ToNetPacketInitAck() const;
 	virtual const NetPacketGameListNew *ToNetPacketGameListNew() const;
 	virtual const NetPacketGameListUpdate *ToNetPacketGameListUpdate() const;
+	virtual const NetPacketGameListPlayerJoined *ToNetPacketGameListPlayerJoined() const;
+	virtual const NetPacketGameListPlayerLeft *ToNetPacketGameListPlayerLeft() const;
+	virtual const NetPacketRetrievePlayerInfo *ToNetPacketRetrievePlayerInfo() const;
+	virtual const NetPacketPlayerInfo *ToNetPacketPlayerInfo() const;
 	virtual const NetPacketCreateGame *ToNetPacketCreateGame() const;
 	virtual const NetPacketJoinGame *ToNetPacketJoinGame() const;
 	virtual const NetPacketJoinGameAck *ToNetPacketJoinGameAck() const;
@@ -185,6 +193,7 @@ public:
 		u_int32_t		gameId;
 		GameMode		gameMode;
 		std::string		gameName;
+		GameData		gameData;
 	};
 
 	NetPacketGameListNew();
@@ -226,6 +235,101 @@ protected:
 	virtual void InternalCheck(const NetPacketHeader* data) const;
 };
 
+class NetPacketGameListPlayerJoined : public NetPacket
+{
+public:
+	struct Data
+	{
+		u_int32_t		gameId;
+		u_int32_t		playerId;
+	};
+
+	NetPacketGameListPlayerJoined();
+	virtual ~NetPacketGameListPlayerJoined();
+
+	virtual boost::shared_ptr<NetPacket> Clone() const;
+
+	void SetData(const Data &inData);
+	void GetData(Data &outData) const;
+
+	virtual const NetPacketGameListPlayerJoined *ToNetPacketGameListPlayerJoined() const;
+
+protected:
+
+	virtual void InternalCheck(const NetPacketHeader* data) const;
+};
+
+class NetPacketGameListPlayerLeft : public NetPacket
+{
+public:
+	struct Data
+	{
+		u_int32_t		gameId;
+		u_int32_t		playerId;
+	};
+
+	NetPacketGameListPlayerLeft();
+	virtual ~NetPacketGameListPlayerLeft();
+
+	virtual boost::shared_ptr<NetPacket> Clone() const;
+
+	void SetData(const Data &inData);
+	void GetData(Data &outData) const;
+
+	virtual const NetPacketGameListPlayerLeft *ToNetPacketGameListPlayerLeft() const;
+
+protected:
+
+	virtual void InternalCheck(const NetPacketHeader* data) const;
+};
+
+class NetPacketRetrievePlayerInfo : public NetPacket
+{
+public:
+	struct Data
+	{
+		u_int32_t		playerId;
+	};
+
+	NetPacketRetrievePlayerInfo();
+	virtual ~NetPacketRetrievePlayerInfo();
+
+	virtual boost::shared_ptr<NetPacket> Clone() const;
+
+	void SetData(const Data &inData);
+	void GetData(Data &outData) const;
+
+	virtual const NetPacketRetrievePlayerInfo *ToNetPacketRetrievePlayerInfo() const;
+
+protected:
+
+	virtual void InternalCheck(const NetPacketHeader* data) const;
+};
+
+class NetPacketPlayerInfo : public NetPacket
+{
+public:
+	struct Data
+	{
+		u_int32_t		playerId;
+		PlayerInfo		playerInfo;
+	};
+
+	NetPacketPlayerInfo();
+	virtual ~NetPacketPlayerInfo();
+
+	virtual boost::shared_ptr<NetPacket> Clone() const;
+
+	void SetData(const Data &inData);
+	void GetData(Data &outData) const;
+
+	virtual const NetPacketPlayerInfo *ToNetPacketPlayerInfo() const;
+
+protected:
+
+	virtual void InternalCheck(const NetPacketHeader* data) const;
+};
+
 class NetPacketCreateGame : public NetPacket
 {
 public:
@@ -306,9 +410,7 @@ public:
 	struct Data
 	{
 		u_int32_t		playerId;
-		PlayerType		ptype;
 		PlayerRights	prights;
-		std::string		playerName;
 	};
 
 	NetPacketPlayerJoined();

src/net/serverlobbythread.h

@@ -72,6 +72,7 @@ protected:
 
 	void ProcessLoop();
 	void HandleNetPacketInit(SessionWrapper session, const NetPacketInit &tmpPacket);
+	void HandleNetPacketRetrievePlayerInfo(SessionWrapper session, const NetPacketRetrievePlayerInfo &tmpPacket);
 	void HandleNetPacketCreateGame(SessionWrapper session, const NetPacketCreateGame &tmpPacket);
 	void HandleNetPacketJoinGame(SessionWrapper session, const NetPacketJoinGame &tmpPacket);
 	void CloseSessionLoop();