private function connect()
{
// open ftp connection
if (!$this->ssl) {
$this->connection = ftp_connect($this->host, $this->port);
} else {
if (function_exists('ftp_ssl_connect')) {
$this->connection = ftp_ssl_connect($this->host, $this->port);
} else {
throw new \RuntimeException('This Server Has No SSL-FTP Available.');
}
}
if (!$this->connection) {
throw new \RuntimeException(sprintf('Could not connect to \'%s\' (port: %s).', $this->host, $this->port));
}
$username = $this->username ?: 'anonymous';
$password = $this->password ?: '';
// login ftp user
if (!@ftp_login($this->connection, $username, $password)) {
$this->close();
throw new \RuntimeException(sprintf('Could not login as %s.', $username));
}
// switch to passive mode if needed
if ($this->passive && !ftp_pasv($this->connection, true)) {
$this->close();
throw new \RuntimeException('Could not turn passive mode on.');
}
// enable utf8 mode if configured
if ($this->utf8 == true) {
ftp_raw($this->connection, "OPTS UTF8 ON");
}
// ensure the adapter's directory exists
if ('/' !== $this->directory) {
try {
$this->ensureDirectoryExists($this->directory, $this->create);
} catch (\RuntimeException $e) {
$this->close();
throw $e;
}
// change the current directory for the adapter's directory
if (!ftp_chdir($this->connection, $this->directory)) {
$this->close();
throw new \RuntimeException(sprintf('Could not change current directory for the \'%s\' directory.', $this->directory));
}
}
}