/**
* Sending a command to the server may be done by invoking this method. Internally we'll
* manage the outgoing buffer, statistics and bot load tracking, as well as actually sending
* the message over the server like we're expected to.
*
* @param string $command The command which has to be send to the server.
* @return integer The number of bytes which have been send at this very invocation.
*/
public function send($command)
{
if (is_resource($this->socket) === false) {
return -1;
}
$command = trim($command);
if ($this->statistics->load() >= self::BUFFER_SEND_QUEUE) {
$this->distributionQueue->enqueue($command);
return 0;
}
$this->statistics->push(SocketStatistics::STATISTICS_OUTGOING, $command);
if (($bytesWritten = fwrite($this->socket, $command . PHP_EOL)) === false) {
$this->bot->onDisconnect(self::DISCONNECT_SOCKET_READ_ERR);
$this->disconnect();
return -1;
}
if (strtoupper(substr($command, 0, 4)) == 'QUIT') {
$this->bot->onDisconnect(self::DISCONNECT_QUIT);
$this->disconnect();
BotManager::getInstance()->destroy($this->bot);
}
return $bytesWritten;
}
/**
* The function which tells this bot to connect to the IRC network.
* Basically we just call the socket's connect function and we check if
* the connection went well. If not, we'll try again after a timeout. If
* we do somehow get connected, we send in our NICK and USER commands to
* register with the IRC server. After that, the process () methods will
* take over.
*
* @return boolean
*/
public function connect()
{
$this->m_aBotInfo['NextTry'] = 15 * pow(2, $this->m_aBotInfo['ConnectTry']);
$this->m_aBotInfo['ConnectTry']++;
if (!$this->m_pSocket->connect()) {
if ($this->m_aBotInfo['ConnectTry'] >= 5) {
echo '[Bot] Destroying bot ' . $this->m_sNickname . ' after 5 failed connection attempts.' . PHP_EOL;
BotManager::getInstance()->destroy($this->m_pBot);
return false;
}
echo '[Bot] Retrying in ' . $this->m_aBotInfo['NextTry'] . ' seconds...' . PHP_EOL;
Timer::create(array($this, 'connect'), $this->m_aBotInfo['NextTry'] * 1000);
return false;
}
$sUsername = isset($this->m_aBotInfo['Username']) && !empty($this->m_aBotInfo['Username']) ? $this->m_aBotInfo['Username'] : NUWANI_NAME;
$sRealname = isset($this->m_aBotInfo['Realname']) && !empty($this->m_aBotInfo['Realname']) ? $this->m_aBotInfo['Realname'] : NUWANI_VERSION_STR;
$this->m_pSocket->send('NICK ' . $this->m_sNickname);
$this->m_pSocket->send('USER ' . $sUsername . ' - - :' . $sRealname);
if (isset($this->m_aBotInfo['Network']['Options']['Password'])) {
$this->m_pSocket->send('PASS ' . $this->m_aBotInfo['Network']['Options']['Password']);
}
return true;
}
/**
* This method will quickly look up a bot which we can use to send
* information to a specific channel.
*
* @param string $sChannel The channel in which we need a bot.
* @throws Exception when no bots were found.
* @return Bot
*/
public function getBot($sChannel)
{
$pBot = BotManager::getInstance()->offsetGet('network:' . LVP::NETWORK . ' channel:' . $sChannel);
if ($pBot instanceof BotGroup) {
if (count($pBot) == 0) {
// Wait. That's not right.
throw new Exception('No bot could be found which is connected to network "' . LVP::NETWORK . '" and in channel ' . $sChannel);
} else {
if (count($pBot) > 1) {
$pBot = $pBot->seek(0);
}
}
}
return $pBot;
}
