owncloud / core

			// if content length is sent by client:

			// double check if the file was fully received

			// compare expected and actual size

			if (isset($_SERVER['CONTENT_LENGTH']) && $_SERVER['REQUEST_METHOD'] !== 'LOCK') {

				$expected = $_SERVER['CONTENT_LENGTH'];

				if ($count != $expected) {

					throw new BadRequest('expected filesize ' . $expected . ' got ' . $count);

				}

			}

		} catch (\Exception $e) {

			if ($needsPartFile) {

		//detect aborted upload

		if (isset ($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'PUT') {

			if (isset($_SERVER['CONTENT_LENGTH'])) {

				$expected = $_SERVER['CONTENT_LENGTH'];

				if ($bytesWritten != $expected) {

					$chunk_handler->remove($info['index']);

					throw new BadRequest(

						'expected filesize ' . $expected . ' got ' . $bytesWritten);

				}

			}

		}

		if ($chunk_handler->isComplete()) {