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/*
* The ManaPlus Client
* Copyright (C) 2014 Vincent Petithory <vincent.petithory@gmail.com>
*
* This file is part of The ManaPlus Client.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "net/ipc.h"
#include "gui/widgets/tabs/chattab.h"
#include "gui/windows/chatwindow.h"
#include "utils/sdlhelper.h"
#include "utils/stringutils.h"
#include <iostream>
#include "commandhandler.h"
#include "logger.h"
IPC *ipc = nullptr;
const std::string IPC_TYPE_CMD = "CMD";
const std::string IPC_TYPE_TALK = "TALK";
const std::string IPC_TYPE_LTALK = "LTALK";
IPC::IPC(unsigned short port) :
mListen(false),
mNumReqs(0),
mPort(port),
mSocket(nullptr),
mThread(nullptr)
{
}
IPC::~IPC()
{
}
bool IPC::init()
{
IPaddress ip;
if(SDLNet_ResolveHost(&ip,NULL,mPort) == -1)
{
logger->log("IPC: SDLNet_ResolveHost: %s\n", SDLNet_GetError());
return false;
}
mSocket = SDLNet_TCP_Open(&ip);
if (!mSocket)
{
logger->log("IPC: Error in TcpNet::open(): %s", TcpNet::getError());
return false;
}
mThread = SDL::createThread(&IPC::acceptLoop, "ipc", this);
if (!mThread)
{
logger->log("IPC: unable to create acceptLoop thread");
return false;
}
return true;
}
int IPC::acceptLoop(void *ptr)
{
IPC *const ipc = reinterpret_cast<IPC*>(ptr);
const int max_length = 1024;
SDLNet_SocketSet set;
set = SDLNet_AllocSocketSet(1);
SDLNet_TCP_AddSocket(set, ipc->mSocket);
ipc->mListen = true;
try
{
while (ipc->mListen)
{
SDLNet_CheckSockets(set, 250);
if (!SDLNet_SocketReady(ipc->mSocket))
continue;
TCPsocket sock;
sock = SDLNet_TCP_Accept(ipc->mSocket);
if (!sock)
{
logger->log("IPC: unable to accept connection");
continue;
}
char data[max_length] = {0};
int result;
result = SDLNet_TCP_Recv(sock, data, max_length);
if (result <= 0)
{
logger->log("IPC: unable to accept connection");
SDLNet_TCP_Close(sock);
continue;
}
// Parse input: TYPE args
const std::string req(data);
const size_t pos = req.find(' ');
const std::string type(req, 0, pos);
std::string args(req, pos == std::string::npos
? req.size() : pos + 1);
args = trim(args);
std::string resp;
if (type == IPC_TYPE_CMD)
{
commandHandler->handleCommand(args, debugChatTab);
ipc->mNumReqs++;
resp = strprintf("[%s](%d) OK\n", IPC_TYPE_CMD.c_str(), ipc->mNumReqs);
}
else if (type == IPC_TYPE_LTALK)
{
chatWindow->localChatInput(args);
ipc->mNumReqs++;
resp = strprintf("[%s](%d) OK\n", IPC_TYPE_LTALK.c_str(), ipc->mNumReqs);
}
else if (type == IPC_TYPE_TALK)
{
chatWindow->chatInput(args);
ipc->mNumReqs++;
resp = strprintf("[%s](%d) OK\n", IPC_TYPE_TALK.c_str(), ipc->mNumReqs);
}
else
{
resp = type + ": no handler for this IPC type\n";
}
int len;
const char *respc;
respc = resp.c_str();
len = strlen(respc)+1;
result = SDLNet_TCP_Send(sock, respc, len);
if (result < len)
{
logger->log("IPC: SDLNet_TCP_Send: %s\n", SDLNet_GetError());
SDLNet_TCP_Close(sock);
continue;
}
SDLNet_TCP_Close(sock);
}
}
catch (std::exception& e)
{
std::cerr << e.what() << std::endl;
SDLNet_TCP_Close(ipc->mSocket);
return 1;
}
SDLNet_TCP_Close(ipc->mSocket);
return 0;
}
unsigned short IPC::port()
{
return mPort;
}
void IPC::stop()
{
if (!ipc)
return;
logger->log("Stopping IPC...");
ipc->mListen = false;
int loopRet;
SDL_WaitThread(ipc->mThread, &loopRet);
ipc = nullptr;
}
void IPC::start()
{
if (ipc)
return;
unsigned short ipc_port(44007);
if (getenv("IPC_PORT"))
ipc_port = atoi(getenv("IPC_PORT"));
logger->log("Starting IPC...");
while (true)
{
logger->log(strprintf(" -> trying port %d...", ipc_port));
ipc = new IPC(ipc_port);
if (ipc->init())
{
logger->log(strprintf(" -> Port %d selected", ipc_port));
break;
}
else
{
ipc_port++;
}
}
}
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