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#include <dashel/dashel.h>
#include <iostream>
#include <cassert>
using namespace std;
using namespace Dashel;
string readLine(Stream* stream)
{
char c;
string line;
do
{
stream->read(&c, 1);
line += c;
}
while (c != '\n' && c != '\r');
return line;
}
void sendString(Stream* stream, const string& line)
{
stream->write(line.c_str(), line.length());
stream->flush();
}
class ChatServer: public Hub
{
public:
ChatServer()
{
listenStream = connect("tcpin:port=8765");
}
protected:
Stream* listenStream;
map<Stream*, string> nicks;
protected:
void connectionCreated(Stream *stream)
{
cout << "+ Incoming connection from " << stream->getTargetName() << " (" << stream << ")" << endl;
string nick = readLine(stream);
nick.erase(nick.length() - 1);
nicks[stream] = nick;
cout << "+ User " << nick << " is connected." << endl;
}
void incomingData(Stream *stream)
{
string line = readLine(stream);
const string& nick = nicks[stream];
line = nick + " : " + line;
cout << "* Message from " << line;
for (StreamsSet::iterator it = dataStreams.begin(); it != dataStreams.end(); ++it)
sendString((*it), line);
}
void connectionClosed(Stream *stream, bool abnormal)
{
cout << "- Connection closed to " << stream->getTargetName() << " (" << stream << ")";
if (abnormal)
cout << " : " << stream->getFailReason();
cout << endl;
string nick = nicks[stream];
nicks.erase(stream);
cout << "- User " << nick << " is disconnected." << endl;
}
};
class ChatClient: public Hub
{
public:
ChatClient(string remoteTarget, const string& nick) :
inputStream(0), nick(nick)
{
remoteTarget += ";port=8765";
inputStream = connect("stdin:");
remoteStream = connect(remoteTarget);
this->nick += '\n';
sendString(remoteStream, this->nick);
}
protected:
Stream* inputStream;
Stream* remoteStream;
string nick;
void connectionCreated(Stream *stream)
{
cout << "Incoming connection " << stream->getTargetName() << " (" << stream << ")" << endl;
}
void incomingData(Stream *stream)
{
assert(inputStream);
assert(remoteStream);
if (stream == inputStream)
{
string line = readLine(inputStream);
sendString(remoteStream, line);
}
else
{
string line = readLine(remoteStream);
cout << line;
cout.flush();
}
}
void connectionClosed(Stream *stream, bool abnormal)
{
cout << "Connection closed to " << stream->getTargetName() << " (" << stream << ")";
if (abnormal)
cout << " : " << stream->getFailReason();
cout << endl;
stop();
}
};
int main(int argc, char* argv[])
{
try
{
if (argc > 2)
{
ChatClient client(argv[1], argv[2]);
client.run();
}
else
{
ChatServer server;
server.run();
}
}
catch(const DashelException &e)
{
std::cerr << e.what() << std::endl;
}
return 0;
}
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