static function Open()
{
// Check if native PHP methods should be used - Test 1
self::$native = is_writable(DOC_ROOT) && getmyuid() == fileowner(DOC_ROOT) ? true : false;
// Check if native PHP methods should be used - Test 2
if (self::$native) {
// Create temporary file
$native_check_file = DOC_ROOT . '/native-check' . time();
$handle = @fopen($native_check_file, 'w');
@fwrite($handle, 'Native Check');
// Check if webserver/PHP has filesystem access
self::$native = fileowner($native_check_file) == getmyuid() ? true : false;
// Remove temporary file
@fclose($handle);
@unlink($native_check_file);
}
// Login to server via FTP if PHP doesn't have write access
if (!self::$native) {
// Set FTP login settings
global $settings;
self::$ftp_hostname = $settings->ftp_hostname;
self::$ftp_username = $settings->ftp_username;
self::$ftp_password = $settings->ftp_password;
self::$ftp_path = $settings->ftp_path;
self::$ftp_ssl = $settings->ftp_ssl;
// Connect to FTP host
if (self::$ftp_ssl) {
if (!function_exists('ftp_ssl_connect')) {
throw new Exception("Your host doesn't support FTP over SSL connections.");
}
self::$ftp_stream = @ftp_ssl_connect(self::$ftp_hostname);
} else {
self::$ftp_stream = @ftp_connect(self::$ftp_hostname);
}
if (!self::$ftp_stream) {
throw new Exception("Unable to connect to FTP host (" . self::$ftp_hostname . ")");
}
// Login with username and password
if (!@ftp_login(self::$ftp_stream, self::$ftp_username, self::$ftp_password)) {
throw new Exception("Unable to login to FTP server (Username: '******', Password: '******')");
}
}
return self::$native ? 'native' : 'ftp';
}
