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cProtocol handles the initial handshake up to player login

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git-svn-id: http://mc-server.googlecode.com/svn/trunk@804 0a769ca7-a7f5-676a-18bf-c427514a06d6
This commit is contained in:
madmaxoft@gmail.com 2012-08-30 08:19:19 +00:00
parent 658383edf8
commit fa93c0cf54
6 changed files with 61 additions and 69 deletions
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1
source/Protocol.h
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@ -56,7 +56,6 @@ public:
virtual void SendEntRelMove (const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ) = 0;
virtual void SendEntRelMoveLook (const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ) = 0;
virtual void SendGameMode (eGameMode a_GameMode) = 0;
virtual void SendHandshake (const AString & a_ServerName) = 0;
virtual void SendHealth (void) = 0;
virtual void SendInventoryProgress(char a_WindowID, short a_Progressbar, short a_Value) = 0;
virtual void SendInventorySlot (int a_WindowID, short a_SlotNum, const cItem & a_Item) = 0;

46
source/Protocol125.cpp
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@ -15,6 +15,8 @@
#include "cPlayer.h"
#include "cChatColor.h"
#include "cWindow.h"
#include "cRoot.h"
#include "cServer.h"
@ -958,7 +960,26 @@ int cProtocol125::ParseEntityAction(void)
int cProtocol125::ParseHandshake(void)
{
HANDLE_PACKET_READ(ReadBEUTF16String16, AString, Username);
m_Client->HandleHandshake(Username);
AStringVector UserData = StringSplit(Username, ";"); // "FakeTruth;localhost:25565"
if (UserData.empty())
{
m_Client->Kick("Did not receive username");
return PARSE_OK;
}
m_Username = UserData[0];
LOGD("HANDSHAKE %s", Username.c_str());
if (cRoot::Get()->GetDefaultWorld()->GetNumPlayers() >= cRoot::Get()->GetDefaultWorld()->GetMaxPlayers())
{
m_Client->Kick("The server is currently full :(-- Try again later");
return PARSE_OK;
}
SendHandshake(cRoot::Get()->GetServer()->GetServerID());
LOGD("User \"%s\" was sent a handshake response", m_Username.c_str());
return PARSE_OK;
}
@ -987,6 +1008,29 @@ int cProtocol125::ParseLogin(void)
HANDLE_PACKET_READ(ReadChar, char, Difficulty);
HANDLE_PACKET_READ(ReadByte, Byte, WorldHeight);
HANDLE_PACKET_READ(ReadByte, Byte, MaxPlayers);
if (ProtocolVersion < 29)
{
m_Client->Kick("Your client is outdated!");
return PARSE_OK;
}
else if (ProtocolVersion > 29)
{
m_Client->Kick("Your client version is higher than the server!");
return PARSE_OK;
}
if (m_Username.compare(Username) != 0)
{
LOGWARNING("Login Username (\"%s\") does not match Handshake username (\"%s\") for client @ \"%s\", kicking",
Username.c_str(),
m_Username.c_str(),
m_Client->GetSocket().GetIPString().c_str()
);
m_Client->Kick("Hacked client"); // Don't tell them why we don't want them
return PARSE_OK;
}
m_Client->HandleLogin(ProtocolVersion, Username);
return PARSE_OK;
}

6
source/Protocol125.h
View File

@ -42,7 +42,6 @@ public:
virtual void SendEntRelMove (const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ) override;
virtual void SendEntRelMoveLook (const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ) override;
virtual void SendGameMode (eGameMode a_GameMode) override;
virtual void SendHandshake (const AString & a_ConnectionHash) override;
virtual void SendHealth (void) override;
virtual void SendInventoryProgress(char a_WindowID, short a_Progressbar, short a_Value) override;
virtual void SendInventorySlot (int a_WindowID, short a_SlotNum, const cItem & a_Item) override;
@ -79,8 +78,13 @@ protected:
cByteBuffer m_ReceivedData; //< Buffer for the received data
AString m_Username; //< Stored in ParseHandshake(), compared to Login username
virtual void SendData(const char * a_Data, int a_Size) override;
/// Sends the Handshake packet
void SendHandshake(const AString & a_ConnectionHash);
/// Parse the packet of the specified type from m_ReceivedData (switch into ParseXYZ() )
virtual int ParsePacket(unsigned char a_PacketType);

1
source/ProtocolRecognizer.h
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@ -39,7 +39,6 @@ public:
virtual void SendEntityEquipment (const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item) override;
virtual void SendEntityStatus (const cEntity & a_Entity, char a_Status) override;
virtual void SendGameMode (eGameMode a_GameMode) override;
virtual void SendHandshake (const AString & a_ServerName) override;
virtual void SendHealth (void) override;
virtual void SendInventoryProgress(char a_WindowID, short a_Progressbar, short a_Value) override;
virtual void SendInventorySlot (int a_WindowID, short a_SlotNum, const cItem & a_Item) override;

62
source/cClientHandle.cpp
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@ -426,66 +426,21 @@ void cClientHandle::HandlePing(void)
void cClientHandle::HandleHandshake(const AString & a_Username)
{
AStringVector UserData = StringSplit(a_Username, ";"); // "FakeTruth;localhost:25565"
if (UserData.empty())
{
Kick("Did not receive username");
return;
}
m_Username = UserData[0];
LOGD("HANDSHAKE %s", m_Username.c_str());
if (cRoot::Get()->GetDefaultWorld()->GetNumPlayers() >= cRoot::Get()->GetDefaultWorld()->GetMaxPlayers())
{
Kick("The server is currently full :(-- Try again later");
return;
}
cRoot::Get()->GetServer()->BroadcastChat(m_Username + " is connecting.", this);
SendHandshake(cRoot::Get()->GetServer()->GetServerID());
LOGD("User \"%s\" was sent a handshake", m_Username.c_str());
}
void cClientHandle::HandleLogin(int a_ProtocolVersion, const AString & a_Username)
bool cClientHandle::HandleLogin(int a_ProtocolVersion, const AString & a_Username)
{
LOGD("LOGIN %s", a_Username.c_str());
if (a_ProtocolVersion < m_ProtocolVersion)
{
Kick("Your client is outdated!");
return;
}
else if (a_ProtocolVersion > m_ProtocolVersion)
{
Kick("Your client version is higher than the server!");
return;
}
if (m_Username.compare(a_Username) != 0)
{
LOGWARNING("Login Username (\"%s\") does not match Handshake username (\"%s\") for client @ \"%s\")",
a_Username.c_str(),
m_Username.c_str(),
m_Socket.GetIPString().c_str()
);
Kick("Hacked client"); // Don't tell them why we don't want them
return;
}
m_Username = a_Username;
if (cRoot::Get()->GetPluginManager()->CallHookLogin(this, a_ProtocolVersion, a_Username))
{
Destroy();
return;
return false;
}
// Schedule for authentication; until then, let them wait (but do not block)
m_State = csAuthenticating;
cRoot::Get()->GetAuthenticator().Authenticate(GetUniqueID(), GetUsername(), cRoot::Get()->GetServer()->GetServerID());
return true;
}
@ -1066,15 +1021,6 @@ void cClientHandle::SendDisconnect(const AString & a_Reason)
void cClientHandle::SendHandshake(const AString & a_ServerName)
{
m_Protocol->SendHandshake(a_ServerName);
}
void cClientHandle::SendInventorySlot(int a_WindowID, short a_SlotNum, const cItem & a_Item)
{
m_Protocol->SendInventorySlot(a_WindowID, a_SlotNum, a_Item);

14
source/cClientHandle.h
View File

@ -83,7 +83,6 @@ public:
bool IsPlaying(void) const {return (m_State == csPlaying); }
void SendDisconnect(const AString & a_Reason);
void SendHandshake (const AString & a_ServerName);
void SendInventorySlot(int a_WindowID, short a_SlotNum, const cItem & a_Item);
void SendChat(const AString & a_Message);
void SendPlayerAnimation(const cPlayer & a_Player, char a_Animation);
@ -142,13 +141,9 @@ public:
void PacketError(unsigned char a_PacketType);
// Calls that cProtocol descendants use for handling packets:
// Packets handled in csConnected:
void HandlePing (void);
void HandleHandshake (const AString & a_Username);
void HandleLogin (int a_ProtocolVersion, const AString & a_Username);
void HandleUnexpectedPacket(int a_PacketType); // the default case -> kick
void HandlePing (void);
// Packets handled while in csPlaying:
void HandleUnexpectedPacket (int a_PacketType); // the default case -> kick
void HandleCreativeInventory(short a_SlotNum, const cItem & a_HeldItem);
void HandlePlayerPos (double a_PosX, double a_PosY, double a_PosZ, double a_Stance, bool a_IsOnGround);
void HandleBlockDig (int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, char a_Status);
@ -170,6 +165,11 @@ public:
void HandleDisconnect (const AString & a_Reason);
void HandleKeepAlive (int a_KeepAliveID);
/** Called when the protocol has finished logging the user in.
Return true to allow the user in; false to kick them.
*/
bool HandleLogin(int a_ProtocolVersion, const AString & a_Username);
void SendData(const char * a_Data, int a_Size);
private: