/**
* Used to figure out which Sieve server the script will be run
* on, and then open a GSSAPI authenticated socket to said server.
*
* @param string $username The username.
* @param string $password The password.
* @param string $hostspec The hostspec.
*
* @return TODO
* @throws Ingo_Exception
*/
public function sivtestSocket($username, $password, $hostspec)
{
$command = '';
$error_return = '';
if (strtolower($this->_params['logintype']) == 'gssapi' && isset($_SERVER['KRB5CCNAME'])) {
$command .= 'KRB5CCNAME=' . $_SERVER['KRB5CCNAME'];
}
$domain_socket = 'unix://' . $this->_params['socket'];
$command .= ' ' . $this->_params['command'] . ' -m ' . $this->_params['logintype'] . ' -u ' . $username . ' -a ' . $username . ' -w ' . $password . ' -p ' . $this->_params['port'] . ' -X ' . $this->_params['socket'] . ' ' . $hostspec;
$conn_attempts = 0;
while ($conn_attempts++ < 4) {
$attempts = 0;
if (!file_exists($this->_params['socket'])) {
exec($command . ' > /dev/null 2>&1');
sleep(1);
while (!file_exists($this->_params['socket'])) {
usleep(200000);
if ($attempts++ > 5) {
$error_return = ': No socket after 10 seconds of trying!';
continue 2;
}
}
}
$socket = new Net_Socket();
$error = $socket->connect($domain_socket, 0, true, 30);
if (!$error instanceof PEAR_Error) {
break;
}
// We failed, break this connection.
unlink($this->_params['socket']);
}
if (!empty($error_return)) {
throw new Ingo_Exception($error_return);
}
$status = $socket->getStatus();
if ($status instanceof PEAR_Error || $status['eof']) {
throw new Ingo_Exception(_("Failed to write to socket: (connection lost!)"));
}
$error = $socket->writeLine("CAPABILITY");
if ($error instanceof PEAR_Error) {
throw new Ingo_Exception(_("Failed to write to socket: " . $error->getMessage()));
}
$result = $socket->readLine();
if ($result instanceof PEAR_Error) {
throw new Ingo_Exception(_("Failed to read from socket: " . $error->getMessage()));
}
if (preg_match('|^bye \\(referral "(sieve://)?([^"]+)|i', $result, $matches)) {
$socket->disconnect();
$this->sivtestSocket($username, $password, $matches[2]);
} else {
$socket->disconnect();
exec($command . ' > /dev/null 2>&1');
sleep(1);
}
}
