owncloud / core

	 *

	 * @return string HTTP protocol. HTTP/2, HTTP/1.1 or HTTP/1.0.

	 */

	public function getHttpProtocol() {

		$claimedProtocol = \strtoupper($this->server['SERVER_PROTOCOL']);

		$validProtocols = [

			'HTTP/1.0',

			'HTTP/1.1',

			'HTTP/2',

		];

		if (\in_array($claimedProtocol, $validProtocols, true)) {

			return $claimedProtocol;

		}

		return 'HTTP/1.1';

	}

	/**

	 * Returns the request uri, even if the website uses one or more

	 * @return string HTTP protocol. HTTP/2, HTTP/1.1 or HTTP/1.0.

	 * @internal Don't use this - use AppFramework\Http\Request->getHttpProtocol instead

	 */

	protected static function getHttpProtocol() {

		$claimedProtocol = \strtoupper($_SERVER['SERVER_PROTOCOL']);

		$validProtocols = [

			'HTTP/1.0',

			'HTTP/1.1',

			'HTTP/2',

		];

		if (\in_array($claimedProtocol, $validProtocols, true)) {

			return $claimedProtocol;

		}

		return 'HTTP/1.1';

	}

}