jetpack / modules / videopress / shortcode.php

shortcode.php in Jetpack – WP Security, Backup, Speed, & Growth 7.1, at modules/videopress/shortcode.php

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1	<?php
2
3	/**
4	* VideoPress Shortcode Handler
5	*
6	* This file may or may not be included from the Jetpack VideoPress module.
7	*/
8
9	class VideoPress_Shortcode {
10	/** @var VideoPress_Shortcode */
11	protected static $instance;
12
13	protected function __construct() {
14
15	// By explicitly declaring the provider here, we can speed things up by not relying on oEmbed discovery.
16	wp_oembed_add_provider( '#^https?://videopress.com/v/.*#', 'http://public-api.wordpress.com/oembed/1.0/', true );
17
18	add_shortcode( 'videopress', array( $this, 'shortcode_callback' ) );
19	add_shortcode( 'wpvideo', array( $this, 'shortcode_callback' ) );
20
21	add_filter( 'wp_video_shortcode_override', array( $this, 'video_shortcode_override' ), 10, 4 );
22
23	add_filter( 'oembed_fetch_url', array( $this, 'add_oembed_for_parameter' ) );
24
25	$this->add_video_embed_hander();
26	}
27
28	/**
29	* @return VideoPress_Shortcode
30	*/
31	public static function initialize() {
32	if ( ! isset( self::$instance ) ) {
33	self::$instance = new self();
34	}
35
36	return self::$instance;
37	}
38
39	/**
40	* Translate a 'videopress' or 'wpvideo' shortcode and arguments into a video player display.
41	*
42	* Expected input formats:
43	*
44	* [videopress OcobLTqC]
45	* [wpvideo OcobLTqC]
46	*
47	* @link http://codex.wordpress.org/Shortcode_API Shortcode API
48	* @param array $attr shortcode attributes
49	* @return string HTML markup or blank string on fail
50	*/
51	public function shortcode_callback( $attr ) {
52	global $content_width;
53
54	/**
55	* We only accept GUIDs as a first unnamed argument.
56	*/
57	$guid = isset( $attr[0] ) ? $attr[0] : null;
58
59	if ( isset( $attr['postid'] ) ) {
60	$guid = get_post_meta( $attr['postid'], 'videopress_guid', true );
61	}
62
63	/**
64	* Make sure the GUID passed in matches how actual GUIDs are formatted.
65	*/
66	if ( ! videopress_is_valid_guid( $guid ) ) {
67	return '';
68	}
69
70	/**
71	* Set the defaults
72	*/
73	$defaults = array(
74	'w' => 0, // Width of the video player, in pixels
75	'at' => 0, // How many seconds in to initially seek to
76	'hd' => true, // Whether to display a high definition version
77	'loop' => false, // Whether to loop the video repeatedly
78	'freedom' => false, // Whether to use only free/libre codecs
79	'autoplay' => false, // Whether to autoplay the video on load
80	'permalink' => true, // Whether to display the permalink to the video
81	'flashonly' => false, // Whether to support the Flash player exclusively
82	'defaultlangcode' => false, // Default language code
83	);
84
85	$attr = shortcode_atts( $defaults, $attr, 'videopress' );
86
87	/**
88	* Cast the attributes, post-input.
89	*/
90	$attr['width'] = absint( $attr['w'] );
91	$attr['hd'] = (bool) $attr['hd'];
92	$attr['freedom'] = (bool) $attr['freedom'];
93
94	/**
95	* If the provided width is less than the minimum allowed
96	* width, or greater than `$content_width` ignore.
97	*/
98	if ( $attr['width'] < VIDEOPRESS_MIN_WIDTH ) {
99	$attr['width'] = 0;
100	} elseif ( isset( $content_width ) && $content_width > VIDEOPRESS_MIN_WIDTH && $attr['width'] > $content_width ) {
101	$attr['width'] = 0;
102	}
103
104	/**
105	* If there was an invalid or unspecified width, set the width equal to the theme's `$content_width`.
106	*/
107	if ( 0 === $attr['width'] && isset( $content_width ) && $content_width >= VIDEOPRESS_MIN_WIDTH ) {
108	$attr['width'] = $content_width;
109	}
110
111	/**
112	* If the width isn't an even number, reduce it by one (making it even).
113	*/
114	if ( 1 === ( $attr['width'] % 2 ) ) {
115	$attr['width'] --;
116	}
117
118	/**
119	* Filter the default VideoPress shortcode options.
120	*
121	* @module videopress
122	*
123	* @since 2.5.0
124	*
125	* @param array $args Array of VideoPress shortcode options.
126	*/
127	$options = apply_filters(
128	'videopress_shortcode_options',
129	array(
130	'at' => (int) $attr['at'],
131	'hd' => $attr['hd'],
132	'loop' => $attr['loop'],
133	'freedom' => $attr['freedom'],
134	'autoplay' => $attr['autoplay'],
135	'permalink' => $attr['permalink'],
136	'force_flash' => (bool) $attr['flashonly'],
137	'defaultlangcode' => $attr['defaultlangcode'],
138	'forcestatic' => false, // This used to be a displayed option, but now is only
139	// accessible via the `videopress_shortcode_options` filter.
140	)
141	);
142
143	// Register VideoPress scripts
144	wp_register_script( 'videopress', 'https://v0.wordpress.com/js/videopress.js', array( 'jquery', 'swfobject' ), '1.09' );
145
146	require_once dirname( __FILE__ ) . '/class.videopress-video.php';
147	require_once dirname( __FILE__ ) . '/class.videopress-player.php';
148
149	$player = new VideoPress_Player( $guid, $attr['width'], $options );
150
151	if ( is_feed() ) {
152	return $player->asXML();
153	} else {
154	return $player->asHTML();
155	}
156	}
157
158	/**
159	* Override the standard video short tag to also process videopress files as well.
160	*
161	* This will, parse the src given, and if it is a videopress file, it will parse as the
162	* VideoPress shortcode instead.
163	*
164	* @param string $html Empty variable to be replaced with shortcode markup.
165	* @param array $attr Attributes of the video shortcode.
166	* @param string $content Video shortcode content.
167	* @param int $instance Unique numeric ID of this video shortcode instance.
168	*
169	* @return string
170	*/
171	public function video_shortcode_override( $html, $attr, $content, $instance ) {
172
173	$videopress_guid = null;
174
175	if ( isset( $attr['videopress_guid'] ) ) {
176	$videopress_guid = $attr['videopress_guid'];
177
178	} else {
179	// Handle the different possible url attributes
180	$url_keys = array( 'src', 'mp4' );
181
182	foreach ( $url_keys as $key ) {
183	if ( isset( $attr[ $key ] ) ) {
184	$url = $attr[ $key ];
185	// phpcs:ignore WordPress.WP.CapitalPDangit
186	if ( preg_match( '@videos.(videopress\.com\|files\.wordpress\.com)/([a-z0-9]{8})/@i', $url, $matches ) ) {
187	$videopress_guid = $matches[2];
188	}
189
190	// Also test for videopress oembed url, which is used by the Video Media Widget.
191	if ( ! $videopress_guid && preg_match( '@https://videopress.com/v/([a-z0-9]{8})@i', $url, $matches ) ) {
192	$videopress_guid = $matches[1];
193	}
194
195	break;
196	}
197	}
198	}
199
200	if ( $videopress_guid ) {
201	$videopress_attr = array( $videopress_guid );
202	if ( isset( $attr['width'] ) ) {
203	$videopress_attr['w'] = (int) $attr['width'];
204	}
205	if ( isset( $attr['autoplay'] ) ) {
206	$videopress_attr['autoplay'] = $attr['autoplay'];
207	}
208	if ( isset( $attr['loop'] ) ) {
209	$videopress_attr['loop'] = $attr['loop'];
210	}
211
212	// Then display the VideoPress version of the stored GUID!
213	return $this->shortcode_callback( $videopress_attr );
214	}
215
216	return '';
217	}
218
219	/**
220	* Adds a `for` query parameter to the oembed provider request URL.
221	*
222	* @param String $oembed_provider
223	* @return String $ehnanced_oembed_provider
224	*/
225	public function add_oembed_for_parameter( $oembed_provider ) {
226	if ( false === stripos( $oembed_provider, 'videopress.com' ) ) {
227	return $oembed_provider;
228	}
229	return add_query_arg( 'for', parse_url( home_url(), PHP_URL_HOST ), $oembed_provider );
230	}
231
232	/**
233	* Register a VideoPress handler for direct links to .mov files (and potential other non-handled types later).
234	*/
235	public function add_video_embed_hander() {
236	// These are the video extensions that VideoPress can transcode and considers video as well (even if core does not).
237	$extensions = array( 'mov' );
238	$override_extensions = implode( '\|', $extensions );
239
240	$regex = "#^https?://videos.(videopress.com\|files.wordpress.com)/.+?.($override_extensions)$#i";
241
242	/** This filter is already documented in core/wp-includes/embed.php */
243	$filter = apply_filters( 'wp_video_embed_handler', 'wp_embed_handler_video' );
244	wp_embed_register_handler( 'video', $regex, $filter, 10 );
245	}
246	}
247
248	VideoPress_Shortcode::initialize();
249