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embedpress / vendor / wpdevelopers / embera / src / Embera / Provider / Facebook.php

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Facebook.php

224 lines

1	<?php
2	/**
3	* Facebook.php
4	*
5	* @package Embera
6	* @author Michael Pratt <yo@michael-pratt.com>
7	* @link http://www.michael-pratt.com/
8	*
9	* For the full copyright and license information, please view the LICENSE
10	* file that was distributed with this source code.
11	*/
12
13	namespace Embera\Provider;
14
15	use Embera\Url;
16
17	/**
18	* Facebook Provider
19	* @link https://facebook.com
20	*/
21	class Facebook extends ProviderAdapter implements ProviderInterface
22	{
23	/** inline {@inheritdoc} */
24	protected $shouldSendRequest = false;
25	/** inline {@inheritdoc} */
26	protected $endpoint = 'https://graph.facebook.com/v8.0/oembed_{type}';
27
28	/** inline {@inheritdoc} */
29	protected static $hosts = [
30	'facebook.com',
31	'fb.com',
32	'fb.watch',
33	];
34
35	/** inline {@inheritdoc} */
36	protected $allowedParams = [ 'maxwidth', 'maxheight', 'callback', 'omitscript', 'breaking_change', 'access_token', 'fields' ];
37
38	/** inline {@inheritdoc} */
39	protected $httpsSupport = true;
40
41	/** inline {@inheritdoc} */
42	protected $responsiveSupport = false;
43
44	/** Patterns that match posts urls */
45	protected $postPatterns = [
46	/**
47	* https://www.facebook.com/{page-name}/posts/{post-id}
48	* https://www.facebook.com/{username}/posts/{post-id}
49	* https://www.facebook.com/{username}/activity/{activity-id}
50	*
51	* Undocumented: https://www.facebook.com/{username}/photos/{photo-id}
52	*/
53	'~facebook\.com/(?:[^/]+)/(?:posts\|activity\|photos)/(?:[^/]+)/?~i',
54
55	/**
56	* https://www.facebook.com/notes/{username}/{note-url}/{note-id}
57	*/
58	'~facebook\.com/notes/(?:[^/]+)/(?:[^/]+)/(?:[^/]+)/?~i',
59
60	/**
61	* https://www.facebook.com/photo.php?fbid={photo-id}
62	* https://www.facebook.com/permalink.php?story_fbid={post-id}
63	*/
64	'~facebook\.com/(?:photo\|permalink)\.php\?(?:(story_)?fbid)=(?:[^ ]+)~i',
65
66	/**
67	* https://www.facebook.com/photos/{photo-id}
68	* https://www.facebook.com/questions/{question-id}
69	*/
70	'~facebook\.com/(?:photos\|questions)/(?:[^/ ]+)/?~i',
71
72	/**
73	* NOTE: This url scheme is stated to be supported, however
74	* I havent found any example that work. I'm leaving it
75	* but I suspect that its not valid anymore.. we know how
76	* facebook is with API's :/
77	*
78	* However in order to be really complaint with the documentation
79	* I'm leaving the pattern.
80	*
81	* https://www.facebook.com/media/set?set={set-id}
82	*/
83	'~facebook\.com/media/set/?\?set=(?:[^/ ]+)~i',
84	'~fb\.watch\/~i',
85	];
86
87	/** Patterns that match video urls */
88	protected $videoPatterns = [
89	/**
90	* https://www.facebook.com/{page-name}/videos/{video-id}/
91	* https://www.facebook.com/{username}/videos/{video-id}/
92	*/
93	'~facebook\.com/(?:[^/]+)/videos/(?:[^/]+)/?~i',
94
95	/**
96	* https://www.facebook.com/video.php?id={video-id}
97	* https://www.facebook.com/video.php?v={video-id}
98	*/
99	'~facebook\.com/video\.php\?(?:id\|v)=(?:[^ ]+)~i',
100
101	'~fb\.watch\/~i',
102	];
103
104	/** Patterns that match page urls */
105	protected $pagePatterns = array(
106	'~facebook\.com\/\S+[\/]?$~'
107	);
108
109	/**
110	* Checks if $url matches the given list of patterns
111	*
112	* @param string $url
113	* @param array $patternList
114	* @return bool
115	*/
116	protected function urlMatchesPattern($url, array $patternList)
117	{
118	foreach ($patternList as $p) {
119	if (preg_match($p, (string) $url)) {
120	return true;
121	}
122	}
123
124	return false;
125	}
126
127	/** inline {@inheritdoc} */
128	public function validateUrl(Url $url)
129	{
130	return $this->urlMatchesPattern($url, array_merge($this->postPatterns, $this->videoPatterns, $this->pagePatterns));
131	}
132
133	/** inline {@inheritdoc} */
134	public function getEndpoint()
135	{
136	if ($this->urlMatchesPattern($this->url, $this->videoPatterns)) {
137	$type = 'video';
138	} elseif ($this->urlMatchesPattern($this->url, $this->postPatterns)) {
139	$type = 'post';
140	} else {
141	$type = 'page';
142	}
143
144	return str_replace('{type}', $type, $this->endpoint);
145	}
146
147	/** inline {@inheritdoc} */
148	public function normalizeUrl(Url $url)
149	{
150	$url->convertToHttps();
151	return $url;
152	}
153
154	/** inline {@inheritdoc} */
155	public function getStaticResponse() {
156
157	$response = [];
158	$params =$this->getParams();
159	$regx = "/fb\.watch\/\|facebook\.com\/[0-9]+\/videos\/\|facebook\.com\/watch\//";
160	$is_video = preg_match($regx, $this->url);
161	$embedUrl = 'https://www.facebook.com/plugins/post.php?href={url}&width={width}&height={height}&show_text=true';
162
163	$height= 680;
164	$width = 500;
165	$attr = [];
166	$class = 'embedpress-facebook--iframe';
167	if ( $is_video ) {
168	$embedUrl = 'https://www.facebook.com/plugins/video.php?height={url_height}&href={url}&show_text=true&width={width}&t=0';
169	$class = 'embedpress-facebook-vid-iframe';
170	}
171	$attr[] = 'class="embera-facebook-iframe-{md5} '.$class.'"';
172	$attr[] = 'src="' . $embedUrl . '"';
173	$attr[] = 'width="{width}"';
174	$attr[] = 'height="{height}"';
175	$attr[] = 'style="border:none;overflow:hidden"';
176	$attr[] = 'scrolling="no"';
177	$attr[] = 'frameborder="0"';
178
179	if ( $is_video ) {
180	$attr[] = 'allow="autoplay; clipboard-write; encrypted-media; picture-in-picture; web-share"';
181	}
182	$attr[] = 'allowTransparency="true"';
183	$attr[] = 'allowFullScreen="true"';
184	$iframe = '<iframe ' . implode(' ', $attr) . '></iframe>';
185	if (!empty($params['maxheight'])) {
186	$height = $params['maxheight'];
187	} else {
188	if (!empty($params['maxwidth'])){
189	if ( $is_video ) {
190	$height = min(571, (int) ($params['maxwidth'] + 100));
191	}else{
192	$height = min(680, (int) ($params['maxwidth'] + 100));
193	}
194	}
195	}
196
197	if (!empty($params['maxwidth'])) {
198	$width = $params['maxwidth'];
199	} else {
200	if (!empty($params['maxheight'])){
201	if ( $is_video ) {
202	$width = min(476, (int) ($params['maxheight'] - 100));
203	}else{
204	$width = min(500, (int) ($params['maxheight'] - 100));
205	}
206	}
207	}
208	$url_height = $height-100;
209
210	$table = array(
211	'{url}' => rawurlencode( rtrim( $this->url, '/')),
212	'{md5}' => substr(md5($this->url), 0, 5),
213	'{width}' => $width,
214	'{height}' => $height,
215	'{url_height}' => $url_height,
216	);
217
218	// Replace the html response
219	$response['html'] = str_replace(array_keys($table), array_values($table), $iframe);
220	return $response;
221	}
222
223	}
224