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* authors: Peter Strempel & Tom Le Duc & Johannes Mesa
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* this code is still in experimentational phase
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#include "igsconnection.h"
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#include <qgbkcodec.h>
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#include <qtextcodec.h>
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IGSConnection::IGSConnection() : IGSInterface()
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qsocket = new QSocket(this);
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connect(qsocket, SIGNAL(hostFound()), SLOT(OnHostFound()));
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connect(qsocket, SIGNAL(connected()), SLOT(OnConnected()));
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connect(qsocket, SIGNAL(readyRead()), SLOT(OnReadyRead()));
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connect(qsocket, SIGNAL(connectionClosed()), SLOT(OnConnectionClosed()));
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connect(qsocket, SIGNAL(delayedCloseFinished()), SLOT(OnDelayedCloseFinish()));
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connect(qsocket, SIGNAL(bytesWritten(int)), SLOT(OnBytesWritten(int)));
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connect(qsocket, SIGNAL(error(int)), SLOT(OnError(int)));
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IGSConnection::~IGSConnection()
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// maybe callback should be callback(void)...,
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// any data can be transferred after signalling with normal functions
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void IGSConnection::sendTextToApp(QString txt)
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if (callbackFP != NULL)
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// check for 'Login:' (and Password)
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bool IGSConnection::checkPrompt()
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// prompt can be login prompt or usermode prompt
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if (bufferLineRest.length() < 4)
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qDebug(QString("IGSConnection::checkPrompt called with string of size %1").arg(bufferLineRest.length()));
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if (authState == PASSWORD)
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int b = qsocket->bytesAvailable();
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qsocket->waitForMore(500);
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b = qsocket->bytesAvailable();
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bufferLineRest += qsocket->getch();
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if (bufferLineRest.find("Login:") != -1)
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qDebug("Login: found");
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// tell application what to send
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sendTextToApp(bufferLineRest);
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if (!username.isEmpty())
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sendTextToApp("...sending: {" + QString(username) + "}");
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sendTextToHost(username, true);// + '\n'); // CAREFUL : THIS SOMETIMES CHANGES on IGS
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if ((bufferLineRest.find("Password:") != -1) || (bufferLineRest.find("1 1") != -1))
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qDebug("Password or 1 1: found , strlen = %d", bufferLineRest.length());
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sendTextToApp(tr("...send password"));
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sendTextToHost(password, true);
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else if (bufferLineRest.find("guest account") != -1)
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void IGSConnection::OnHostFound()
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qDebug("IGSConnection::OnHostFound()");
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void IGSConnection::OnConnected()
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qDebug("IGSConnection::OnConnected()");
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sendTextToApp("Connected to " + qsocket->peerAddress().toString() + " " +
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QString::number(qsocket->peerPort()));
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// We got data to read
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void IGSConnection::OnReadyRead()
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// qDebug("OnReadyRead....");
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while (qsocket->canReadLine())
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int size = qsocket->bytesAvailable() + 1;
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char *c = new char[size];
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int bytes = qsocket->readLine(c, size);
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QString x = textCodec->toUnicode(c);
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// emit signal_setBytesIn(x.length());
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x.truncate(x.length()-2);
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if (authState == PASSWORD)
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qDebug("PASSWORD***");
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if (authState == LOGIN && qsocket->bytesAvailable() == 7)
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qDebug("looking for 'Login:'");
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while (qsocket->bytesAvailable())
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y += qsocket->getch();
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qDebug("Collected: " + y);
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// convertBlockToLines();
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// Connection was closed from host
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void IGSConnection::OnConnectionClosed()
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qDebug("CONNECTION CLOSED BY FOREIGN HOST");
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// read last data that could be in the buffer
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sendTextToApp("Connection closed by foreign host.\n");
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// Connection was closed from application, but delayed
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void IGSConnection::OnDelayedCloseFinish()
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qDebug("DELAY CLOSED FINISHED");
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sendTextToApp("Connection closed.\n");
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void IGSConnection::OnBytesWritten(int /*nbytes*/)
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// qDebug("%d BYTES WRITTEN", nbytes);
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// emit signal_setBytesOut(nbytes);
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void IGSConnection::OnError(int i)
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case QSocket::ErrConnectionRefused: qDebug("ERROR: connection refused...");
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case QSocket::ErrHostNotFound: qDebug("ERROR: host not found...");
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case QSocket::ErrSocketRead: qDebug("ERROR: socket read...");
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default: qDebug("ERROR: unknown Error...");
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sendTextToApp("ERROR - Connection closed.\n");
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* Functions called from the application
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bool IGSConnection::isConnected()
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// qDebug("IGSConnection::isConnected()");
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return qsocket->state() == QSocket::Connection;
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void IGSConnection::sendTextToHost(QString txt, bool ignoreCodec)
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* This is intended because for weird reasons, if 'username' s given
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* with a codec, IGS might reject it and ban the IP (!!!) for several hours.
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* This seems to concern only windows users.
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* Therefore, we pretend to ignore the codec when passing username or password
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const char * txt2 = txt.latin1();
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if ((len = qsocket->writeBlock(txt2, strlen(txt2) * sizeof(char))) != -1)
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qsocket->writeBlock("\r\n", 2);
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qWarning(QString("*** failed sending to host: %1").arg(txt2));
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QCString raw = textCodec->fromUnicode(txt);
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if (qsocket->writeBlock(raw.data(), raw.size() - 1) != -1)
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qsocket->writeBlock("\r\n", 2);
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qWarning(QString("*** failed sending to host: %1").arg(txt));
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void IGSConnection::setTextCodec(QString codec)
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textCodec = QTextCodec::codecForName(codec);
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textCodec = QTextCodec::codecForLocale();
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CHECK_PTR(textCodec);
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bool IGSConnection::openConnection(const char *host, unsigned int port, const char *user, const char *pass)
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if (qsocket->state() != QSocket::Idle ) {
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qDebug("Called IGSConnection::openConnection while in state %d", qsocket->state());
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//textCodec = QTextCodec::codecForName(codec);
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// textCodec = QTextCodec::codecForLocale();
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//CHECK_PTR(textCodec);
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qDebug("Connecting to %s %d as [%s], [%s]...", host, port, username.latin1(), (password ? "***" : "NULL"));
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sendTextToApp(tr("Trying to connect to %1 %2").arg(host,port));
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int len = qstrlen(host);
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if ((len > 0) && (len < 200)) // otherwise host points to junk
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qsocket->connectToHost(host, (Q_UINT16) port);
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return qsocket->state() != QSocket::Idle;
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bool IGSConnection::closeConnection()
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// We have no connection?
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if (qsocket->state() == QSocket::Idle)
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qDebug("Disconnecting...");
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// Closing succeeded, return message
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if (qsocket->state() == QSocket::Idle)
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sendTextToApp("Connection closed.\n");
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// Not yet closed? Data will be written and then slot OnDelayClosedFinish() called
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const char* IGSConnection::getUsername ()
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return (const char*) username;
added
removed
src/igsconnection.cpp
