mirror of
https://github.com/ddnet/ddnet.git
synced 2024-11-19 14:38:18 +00:00
151 lines
3.5 KiB
C++
151 lines
3.5 KiB
C++
/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
|
|
/* If you are missing that file, acquire a complete release at teeworlds.com. */
|
|
#include <base/system.h>
|
|
|
|
#include <engine/console.h>
|
|
|
|
#include "netban.h"
|
|
#include "network.h"
|
|
|
|
|
|
bool CNetConsole::Open(NETADDR BindAddr, CNetBan *pNetBan, int Flags)
|
|
{
|
|
// zero out the whole structure
|
|
mem_zero(this, sizeof(*this));
|
|
m_Socket.type = NETTYPE_INVALID;
|
|
m_Socket.ipv4sock = -1;
|
|
m_Socket.ipv6sock = -1;
|
|
m_pNetBan = pNetBan;
|
|
|
|
// open socket
|
|
m_Socket = net_tcp_create(BindAddr);
|
|
if(!m_Socket.type)
|
|
return false;
|
|
if(net_tcp_listen(m_Socket, NET_MAX_CONSOLE_CLIENTS))
|
|
return false;
|
|
net_set_non_blocking(m_Socket);
|
|
|
|
for(int i = 0; i < NET_MAX_CONSOLE_CLIENTS; i++)
|
|
m_aSlots[i].m_Connection.Reset();
|
|
|
|
return true;
|
|
}
|
|
|
|
void CNetConsole::SetCallbacks(NETFUNC_NEWCLIENT pfnNewClient, NETFUNC_DELCLIENT pfnDelClient, void *pUser)
|
|
{
|
|
m_pfnNewClient = pfnNewClient;
|
|
m_pfnDelClient = pfnDelClient;
|
|
m_UserPtr = pUser;
|
|
}
|
|
|
|
int CNetConsole::Close()
|
|
{
|
|
for(int i = 0; i < NET_MAX_CONSOLE_CLIENTS; i++)
|
|
m_aSlots[i].m_Connection.Disconnect("closing console");
|
|
|
|
net_tcp_close(m_Socket);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int CNetConsole::Drop(int ClientID, const char *pReason)
|
|
{
|
|
if(m_pfnDelClient)
|
|
m_pfnDelClient(ClientID, pReason, m_UserPtr);
|
|
|
|
m_aSlots[ClientID].m_Connection.Disconnect(pReason);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int CNetConsole::AcceptClient(NETSOCKET Socket, const NETADDR *pAddr)
|
|
{
|
|
char aError[256] = { 0 };
|
|
int FreeSlot = -1;
|
|
|
|
// look for free slot or multiple client
|
|
for(int i = 0; i < NET_MAX_CONSOLE_CLIENTS; i++)
|
|
{
|
|
if(FreeSlot == -1 && m_aSlots[i].m_Connection.State() == NET_CONNSTATE_OFFLINE)
|
|
FreeSlot = i;
|
|
if(m_aSlots[i].m_Connection.State() != NET_CONNSTATE_OFFLINE)
|
|
{
|
|
if(net_addr_comp(pAddr, m_aSlots[i].m_Connection.PeerAddress()) == 0)
|
|
{
|
|
str_copy(aError, "only one client per IP allowed", sizeof(aError));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// accept client
|
|
if(!aError[0] && FreeSlot != -1)
|
|
{
|
|
m_aSlots[FreeSlot].m_Connection.Init(Socket, pAddr);
|
|
if(m_pfnNewClient)
|
|
m_pfnNewClient(FreeSlot, m_UserPtr);
|
|
return 0;
|
|
}
|
|
|
|
// reject client
|
|
if(!aError[0])
|
|
str_copy(aError, "no free slot available", sizeof(aError));
|
|
|
|
net_tcp_send(Socket, aError, str_length(aError));
|
|
net_tcp_close(Socket);
|
|
|
|
return -1;
|
|
}
|
|
|
|
int CNetConsole::Update()
|
|
{
|
|
NETSOCKET Socket;
|
|
NETADDR Addr;
|
|
|
|
if(net_tcp_accept(m_Socket, &Socket, &Addr) > 0)
|
|
{
|
|
// check if we just should drop the packet
|
|
char aBuf[128];
|
|
if(NetBan() && NetBan()->IsBanned(&Addr, aBuf, sizeof(aBuf)))
|
|
{
|
|
// banned, reply with a message and drop
|
|
net_tcp_send(Socket, aBuf, str_length(aBuf));
|
|
net_tcp_close(Socket);
|
|
}
|
|
else
|
|
AcceptClient(Socket, &Addr);
|
|
}
|
|
|
|
for(int i = 0; i < NET_MAX_CONSOLE_CLIENTS; i++)
|
|
{
|
|
if(m_aSlots[i].m_Connection.State() == NET_CONNSTATE_ONLINE)
|
|
m_aSlots[i].m_Connection.Update();
|
|
if(m_aSlots[i].m_Connection.State() == NET_CONNSTATE_ERROR)
|
|
Drop(i, m_aSlots[i].m_Connection.ErrorString());
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int CNetConsole::Recv(char *pLine, int MaxLength, int *pClientID)
|
|
{
|
|
for(int i = 0; i < NET_MAX_CONSOLE_CLIENTS; i++)
|
|
{
|
|
if(m_aSlots[i].m_Connection.State() == NET_CONNSTATE_ONLINE && m_aSlots[i].m_Connection.Recv(pLine, MaxLength))
|
|
{
|
|
if(pClientID)
|
|
*pClientID = i;
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int CNetConsole::Send(int ClientID, const char *pLine)
|
|
{
|
|
if(m_aSlots[ClientID].m_Connection.State() == NET_CONNSTATE_ONLINE)
|
|
return m_aSlots[ClientID].m_Connection.Send(pLine);
|
|
else
|
|
return -1;
|
|
}
|