php-e107/vendor/facebook/webdriver/lib/Remote/LocalFileDetector.php

<?php
// Copyright 2004-present Facebook. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

namespace Facebook\WebDriver\Remote;

class LocalFileDetector implements FileDetector
{
    /**
     * @param string $file
     *
     * @return null|string
     */
    public function getLocalFile($file)
    {
        if (is_file($file)) {
            return $file;
        }

        return null;
    }
}