Deny ask kick if the player is not/no longer present.

docs/net_protocol.txt

@@ -830,6 +830,7 @@ Deny Reason:
 	0x0001: Kick not possible due to number of players.
 	0x0002: Another kick cannot be requested at this time.
 	0x0003: Kick request is already in progress.
+	0x0004: Invalid player ID.
 	0xFFFF: Other reason.
 
 

src/game_defs.h

@@ -72,6 +72,7 @@ enum DenyKickPlayerReason
 	KICK_DENIED_TOO_FEW_PLAYERS,
 	KICK_DENIED_TEMPORARY,
 	KICK_DENIED_OTHER_IN_PROGRESS,
+	KICK_DENIED_INVALID_PLAYER_ID,
 	KICK_DENIED_OTHER_REASON
 };
 

src/net/common/netpacket.cpp

@@ -125,6 +125,7 @@ using namespace std;
 #define NET_ASK_KICK_DENIED_TOO_FEW_PLAYERS		0x0001
 #define NET_ASK_KICK_DENIED_TEMPORARY			0x0002
 #define NET_ASK_KICK_DENIED_OTHER_IN_PROGRESS	0x0003
+#define NET_ASK_KICK_DENIED_INVALID_PLAYER_ID	0x0004
 #define NET_ASK_KICK_DENIED_OTHER_REASON		0xFFFF
 
 // Vote types
@@ -4526,6 +4527,9 @@ NetPacketAskKickPlayerDenied::SetData(const NetPacketAskKickPlayerDenied::Data &
 		case KICK_DENIED_OTHER_IN_PROGRESS:
 			tmpData->denyReason = htons(NET_ASK_KICK_DENIED_OTHER_IN_PROGRESS);
 			break;
+		case KICK_DENIED_INVALID_PLAYER_ID:
+			tmpData->denyReason = htons(NET_ASK_KICK_DENIED_INVALID_PLAYER_ID);
+			break;
 		default:
 			tmpData->denyReason = htons(NET_ASK_KICK_DENIED_OTHER_REASON);
 			break;
@@ -4555,6 +4559,9 @@ NetPacketAskKickPlayerDenied::GetData(NetPacketAskKickPlayerDenied::Data &outDat
 		case NET_ASK_KICK_DENIED_OTHER_IN_PROGRESS:
 			outData.denyReason = KICK_DENIED_OTHER_IN_PROGRESS;
 			break;
+		case NET_ASK_KICK_DENIED_INVALID_PLAYER_ID:
+			outData.denyReason = KICK_DENIED_INVALID_PLAYER_ID;
+			break;
 		default:
 			outData.denyReason = KICK_DENIED_OTHER_REASON;
 			break;

src/net/common/servergamethread.cpp

@@ -220,7 +220,7 @@ ServerGameThread::VoteKickAction()
 			abortPetition = true;
 		}
 		// 3. The kick has become invalid because the player to be kicked left.
-		else if (find(playerIds.begin(), playerIds.end(), m_voteKickData->kickPlayerId) == playerIds.end())
+		else if (!IsValidPlayer(m_voteKickData->kickPlayerId))
 		{
 			reason = PETITION_END_PLAYER_LEFT;
 			abortPetition = true;
@@ -326,6 +326,9 @@ ServerGameThread::InternalAskVoteKick(SessionWrapper byWhom, unsigned playerIdWh
 		// Retrieve only the number of human players.
 		size_t numPlayers = GetSessionManager().GetPlayerIdList().size();
 		if (numPlayers > 2)
+		{
+			// Check whether the player to be kicked exists.
+			if (IsValidPlayer(playerIdWho))
 			{
 				// Lock the vote kick data.
 				boost::mutex::scoped_lock lock(m_voteKickDataMutex);
@@ -356,6 +359,9 @@ ServerGameThread::InternalAskVoteKick(SessionWrapper byWhom, unsigned playerIdWh
 				else
 					InternalDenyAskVoteKick(byWhom, playerIdWho, KICK_DENIED_OTHER_IN_PROGRESS);
 			}
+			else
+				InternalDenyAskVoteKick(byWhom, playerIdWho, KICK_DENIED_INVALID_PLAYER_ID);
+		}
 		else
 			InternalDenyAskVoteKick(byWhom, playerIdWho, KICK_DENIED_TOO_FEW_PLAYERS);
 	}
@@ -693,6 +699,16 @@ ServerGameThread::AssignPlayerNumbers()
 	}
 }
 
+bool
+ServerGameThread::IsValidPlayer(unsigned playerId) const
+{
+	bool retVal = false;
+	const PlayerIdList list(GetPlayerIdList());
+	if (find(list.begin(), list.end(), playerId) != list.end())
+		retVal = true;
+	return retVal;
+}
+
 SessionManager &
 ServerGameThread::GetSessionManager()
 {

src/net/servergamethread.h

@@ -109,6 +109,7 @@ protected:
 	void RemoveDisconnectedPlayers();
 	size_t GetCurNumberOfPlayers() const;
 	void AssignPlayerNumbers();
+	bool IsValidPlayer(unsigned playerId) const;
 
 	ServerLobbyThread &GetLobbyThread();