/** * 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); } }