1<?php
2/**
3 * Copyright 2017 Facebook, Inc.
4 *
5 * You are hereby granted a non-exclusive, worldwide, royalty-free license to
6 * use, copy, modify, and distribute this software in source code or binary
7 * form for use in connection with the web services and APIs provided by
8 * Facebook.
9 *
10 * As with any software that integrates with the Facebook platform, your use
11 * of this software is subject to the Facebook Developer Principles and
12 * Policies [http://developers.facebook.com/policy/]. This copyright notice
13 * shall be included in all copies or substantial portions of the software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 */
24namespace Facebook\Helpers;
25
26/**
27 * Class FacebookCanvasLoginHelper
28 *
29 * @package Facebook
30 */
31class FacebookCanvasHelper extends FacebookSignedRequestFromInputHelper
32{
33    /**
34     * Returns the app data value.
35     *
36     * @return mixed|null
37     */
38    public function getAppData()
39    {
40        return $this->signedRequest ? $this->signedRequest->get('app_data') : null;
41    }
42
43    /**
44     * Get raw signed request from POST.
45     *
46     * @return string|null
47     */
48    public function getRawSignedRequest()
49    {
50        return $this->getRawSignedRequestFromPost() ?: null;
51    }
52}
53