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