Core/PacketIO: Handle ConnectToFailed and allow the client to reconnect up to 5 times before aborting login to world

Closes #14214

4 files changed, 61 insertions, 1 deletions

diff --git a/src/server/game/Server/Packets/AuthenticationPackets.cpp b/src/server/game/Server/Packets/AuthenticationPackets.cpp
index 97f68e676a6..14f5de79e2c 100644
--- a/src/server/game/Server/Packets/AuthenticationPackets.cpp
+++ b/src/server/game/Server/Packets/AuthenticationPackets.cpp
@@ -592,3 +592,9 @@ void WorldPackets::Auth::AuthContinuedSession::Read()
     _worldPacket >> Key;
     _worldPacket.read(Digest, SHA_DIGEST_LENGTH);
 }
+
+void WorldPackets::Auth::ConnectToFailed::Read()
+{
+    _worldPacket >> Serial;
+    _worldPacket >> Con;
+}
diff --git a/src/server/game/Server/Packets/AuthenticationPackets.h b/src/server/game/Server/Packets/AuthenticationPackets.h
index 09b528910cd..ecb6061db2c 100644
--- a/src/server/game/Server/Packets/AuthenticationPackets.h
+++ b/src/server/game/Server/Packets/AuthenticationPackets.h
@@ -138,6 +138,17 @@ namespace WorldPackets
             uint8 Result = 0; ///< the result of the authentication process, it is AUTH_OK if it succeeded and the account is ready to log in. It can also be AUTH_WAIT_QUEUE if the account entered the login queue (Queued, QueuePos), possible values are @ref ResponseCodes
         };
 
+        enum class ConnectToSerial : uint32
+        {
+            None            = 0,
+            Realm           = 14,
+            WorldAttempt1   = 17,
+            WorldAttempt2   = 35,
+            WorldAttempt3   = 53,
+            WorldAttempt4   = 71,
+            WorldAttempt5   = 89
+        };
+
         class ConnectTo final : public ServerPacket
         {
             static std::string const Haiku;
@@ -157,7 +168,7 @@ namespace WorldPackets
             WorldPacket const* Write() override;
 
             uint64 Key = 0;
-            uint32 Serial = 0;
+            ConnectToSerial Serial = ConnectToSerial::None;
             ConnectPayload Payload;
             uint8 Con = 0;
 
@@ -191,6 +202,17 @@ namespace WorldPackets
 
             WorldPacket const* Write() override { return &_worldPacket; }
         };
+
+        class ConnectToFailed final : public ClientPacket
+        {
+        public:
+            ConnectToFailed(WorldPacket&& packet) : ClientPacket(CMSG_CONNECT_TO_FAILED, std::move(packet)) { }
+
+            void Read() override;
+
+            uint32 Serial = 0;
+            uint8 Con = 0;
+        };
     }
 }
 
diff --git a/src/server/game/Server/Packets/CharacterPackets.cpp b/src/server/game/Server/Packets/CharacterPackets.cpp
index 0eabb1ee351..f69cdee736c 100644
--- a/src/server/game/Server/Packets/CharacterPackets.cpp
+++ b/src/server/game/Server/Packets/CharacterPackets.cpp
@@ -357,6 +357,12 @@ WorldPacket const* WorldPackets::Character::LoginVerifyWorld::Write()
     return &_worldPacket;
 }
 
+WorldPacket const* WorldPackets::Character::CharacterLoginFailed::Write()
+{
+    _worldPacket << uint8(Code);
+    return &_worldPacket;
+}
+
 WorldPacket const* WorldPackets::Character::LogoutResponse::Write()
 {
     _worldPacket << int32(LogoutResult);
diff --git a/src/server/game/Server/Packets/CharacterPackets.h b/src/server/game/Server/Packets/CharacterPackets.h
index 7784ffee417..b398af0b04b 100644
--- a/src/server/game/Server/Packets/CharacterPackets.h
+++ b/src/server/game/Server/Packets/CharacterPackets.h
@@ -429,6 +429,32 @@ namespace WorldPackets
             uint32 Reason = 0;
         };
 
+        enum class LoginFailureReason : uint8
+        {
+            Failed                          = 0,
+            NoWorld                         = 1,
+            DuplicateCharacter              = 2,
+            NoInstances                     = 3,
+            Disabled                        = 4,
+            NoCharacter                     = 5,
+            LockedForTransfer               = 6,
+            LockedByBilling                 = 7,
+            LockedByMobileAH                = 8,
+            TemporaryGMLock                 = 9,
+            LockedByCharacterUpgrade        = 10,
+            LockedByRevokedCharacterUpgrade = 11
+        };
+
+        class CharacterLoginFailed  final : public ServerPacket
+        {
+        public:
+            CharacterLoginFailed(LoginFailureReason code) : ServerPacket(SMSG_CHARACTER_LOGIN_FAILED, 1), Code(code) { }
+
+            WorldPacket const* Write() override;
+
+            LoginFailureReason Code = LoginFailureReason::Failed;
+        };
+
         class LogoutRequest final : public ClientPacket
         {
         public: