| author | ymh <ymh.work@gmail.com> |
| Tue, 22 Oct 2019 16:11:46 +0200 | |
| changeset 15 | 3d4e9c994f10 |
| parent 9 | 177826044cd9 |
| child 16 | a86126ab1dd4 |
| permissions | -rw-r--r-- |
| 0 | 1 |
<?php |
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/** |
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* API for fetching the HTML to embed remote content based on a provided URL |
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* |
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* Used internally by the WP_Embed class, but is designed to be generic. |
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* |
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* @link https://codex.wordpress.org/oEmbed oEmbed Codex Article |
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* @link http://oembed.com/ oEmbed Homepage |
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* |
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* @package WordPress |
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* @subpackage oEmbed |
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*/ |
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/** |
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* Core class used to implement oEmbed functionality. |
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* @since 2.9.0 |
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*/ |
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class WP_oEmbed { |
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/** |
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* A list of oEmbed providers. |
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cf61fcea0001
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* |
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* @since 2.9.0 |
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* @var array |
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*/ |
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public $providers = array(); |
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/** |
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* A list of an early oEmbed providers. |
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* |
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* @since 4.0.0 |
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* @var array |
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*/ |
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public static $early_providers = array(); |
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/** |
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* A list of private/protected methods, used for backward compatibility. |
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* |
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* @since 4.2.0 |
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* @var array |
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*/ |
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private $compat_methods = array( '_fetch_with_format', '_parse_json', '_parse_xml', '_parse_xml_body' ); |
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/** |
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* Constructor. |
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* |
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* @since 2.9.0 |
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*/ |
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public function __construct() { |
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$host = urlencode( home_url() ); |
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$providers = array( |
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'#https?://((m|www)\.)?youtube\.com/watch.*#i' => array( 'https://www.youtube.com/oembed', true ), |
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'#https?://((m|www)\.)?youtube\.com/playlist.*#i' => array( 'https://www.youtube.com/oembed', true ), |
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'#https?://youtu\.be/.*#i' => array( 'https://www.youtube.com/oembed', true ), |
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'#https?://(.+\.)?vimeo\.com/.*#i' => array( 'https://vimeo.com/api/oembed.{format}', true ), |
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'#https?://(www\.)?dailymotion\.com/.*#i' => array( 'https://www.dailymotion.com/services/oembed', true ), |
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'#https?://dai\.ly/.*#i' => array( 'https://www.dailymotion.com/services/oembed', true ), |
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'#https?://(www\.)?flickr\.com/.*#i' => array( 'https://www.flickr.com/services/oembed/', true ), |
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'#https?://flic\.kr/.*#i' => array( 'https://www.flickr.com/services/oembed/', true ), |
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'#https?://(.+\.)?smugmug\.com/.*#i' => array( 'https://api.smugmug.com/services/oembed/', true ), |
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'#https?://(www\.)?hulu\.com/watch/.*#i' => array( 'http://www.hulu.com/api/oembed.{format}', true ), |
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'#https?://(www\.)?scribd\.com/(doc|document)/.*#i' => array( 'https://www.scribd.com/services/oembed', true ), |
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'#https?://wordpress\.tv/.*#i' => array( 'https://wordpress.tv/oembed/', true ), |
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'#https?://(.+\.)?polldaddy\.com/.*#i' => array( 'https://api.crowdsignal.com/oembed', true ), |
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'#https?://poll\.fm/.*#i' => array( 'https://api.crowdsignal.com/oembed', true ), |
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'#https?://(.+\.)?survey\.fm/.*#i' => array( 'https://api.crowdsignal.com/oembed', true ), |
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'#https?://(www\.)?twitter\.com/\w{1,15}/status(es)?/.*#i' => array( 'https://publish.twitter.com/oembed', true ), |
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'#https?://(www\.)?twitter\.com/\w{1,15}$#i' => array( 'https://publish.twitter.com/oembed', true ), |
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'#https?://(www\.)?twitter\.com/\w{1,15}/likes$#i' => array( 'https://publish.twitter.com/oembed', true ), |
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'#https?://(www\.)?twitter\.com/\w{1,15}/lists/.*#i' => array( 'https://publish.twitter.com/oembed', true ), |
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'#https?://(www\.)?twitter\.com/\w{1,15}/timelines/.*#i' => array( 'https://publish.twitter.com/oembed', true ), |
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'#https?://(www\.)?twitter\.com/i/moments/.*#i' => array( 'https://publish.twitter.com/oembed', true ), |
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'#https?://(www\.)?soundcloud\.com/.*#i' => array( 'https://soundcloud.com/oembed', true ), |
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'#https?://(.+?\.)?slideshare\.net/.*#i' => array( 'https://www.slideshare.net/api/oembed/2', true ), |
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'#https?://(www\.)?instagr(\.am|am\.com)/(p|tv)/.*#i' => array( 'https://api.instagram.com/oembed', true ), |
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'#https?://(open|play)\.spotify\.com/.*#i' => array( 'https://embed.spotify.com/oembed/', true ), |
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'#https?://(.+\.)?imgur\.com/.*#i' => array( 'https://api.imgur.com/oembed', true ), |
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'#https?://(www\.)?meetu(\.ps|p\.com)/.*#i' => array( 'https://api.meetup.com/oembed', true ), |
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'#https?://(www\.)?issuu\.com/.+/docs/.+#i' => array( 'https://issuu.com/oembed_wp', true ), |
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'#https?://(www\.)?collegehumor\.com/video/.*#i' => array( 'https://www.collegehumor.com/oembed.{format}', true ), |
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'#https?://(www\.)?mixcloud\.com/.*#i' => array( 'https://www.mixcloud.com/oembed', true ), |
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'#https?://(www\.|embed\.)?ted\.com/talks/.*#i' => array( 'https://www.ted.com/services/v1/oembed.{format}', true ), |
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'#https?://(www\.)?(animoto|video214)\.com/play/.*#i' => array( 'https://animoto.com/oembeds/create', true ), |
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'#https?://(.+)\.tumblr\.com/post/.*#i' => array( 'https://www.tumblr.com/oembed/1.0', true ), |
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'#https?://(www\.)?kickstarter\.com/projects/.*#i' => array( 'https://www.kickstarter.com/services/oembed', true ), |
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'#https?://kck\.st/.*#i' => array( 'https://www.kickstarter.com/services/oembed', true ), |
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'#https?://cloudup\.com/.*#i' => array( 'https://cloudup.com/oembed', true ), |
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'#https?://(www\.)?reverbnation\.com/.*#i' => array( 'https://www.reverbnation.com/oembed', true ), |
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'#https?://videopress\.com/v/.*#' => array( 'https://public-api.wordpress.com/oembed/?for=' . $host, true ), |
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'#https?://(www\.)?reddit\.com/r/[^/]+/comments/.*#i' => array( 'https://www.reddit.com/oembed', true ), |
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'#https?://(www\.)?speakerdeck\.com/.*#i' => array( 'https://speakerdeck.com/oembed.{format}', true ), |
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'#https?://www\.facebook\.com/.*/posts/.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ), |
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'#https?://www\.facebook\.com/.*/activity/.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ), |
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'#https?://www\.facebook\.com/.*/photos/.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ), |
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'#https?://www\.facebook\.com/photo(s/|\.php).*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ), |
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'#https?://www\.facebook\.com/permalink\.php.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ), |
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'#https?://www\.facebook\.com/media/.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ), |
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'#https?://www\.facebook\.com/questions/.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ), |
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'#https?://www\.facebook\.com/notes/.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ), |
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'#https?://www\.facebook\.com/.*/videos/.*#i' => array( 'https://www.facebook.com/plugins/video/oembed.json/', true ), |
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'#https?://www\.facebook\.com/video\.php.*#i' => array( 'https://www.facebook.com/plugins/video/oembed.json/', true ), |
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'#https?://(www\.)?screencast\.com/.*#i' => array( 'https://api.screencast.com/external/oembed', true ), |
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'#https?://([a-z0-9-]+\.)?amazon\.(com|com\.mx|com\.br|ca)/.*#i' => array( 'https://read.amazon.com/kp/api/oembed', true ), |
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'#https?://([a-z0-9-]+\.)?amazon\.(co\.uk|de|fr|it|es|in|nl|ru)/.*#i' => array( 'https://read.amazon.co.uk/kp/api/oembed', true ), |
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'#https?://([a-z0-9-]+\.)?amazon\.(co\.jp|com\.au)/.*#i' => array( 'https://read.amazon.com.au/kp/api/oembed', true ), |
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'#https?://([a-z0-9-]+\.)?amazon\.cn/.*#i' => array( 'https://read.amazon.cn/kp/api/oembed', true ), |
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'#https?://(www\.)?a\.co/.*#i' => array( 'https://read.amazon.com/kp/api/oembed', true ), |
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'#https?://(www\.)?amzn\.to/.*#i' => array( 'https://read.amazon.com/kp/api/oembed', true ), |
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'#https?://(www\.)?amzn\.eu/.*#i' => array( 'https://read.amazon.co.uk/kp/api/oembed', true ), |
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'#https?://(www\.)?amzn\.in/.*#i' => array( 'https://read.amazon.in/kp/api/oembed', true ), |
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'#https?://(www\.)?amzn\.asia/.*#i' => array( 'https://read.amazon.com.au/kp/api/oembed', true ), |
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'#https?://(www\.)?z\.cn/.*#i' => array( 'https://read.amazon.cn/kp/api/oembed', true ), |
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'#https?://www\.someecards\.com/.+-cards/.+#i' => array( 'https://www.someecards.com/v2/oembed/', true ), |
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'#https?://www\.someecards\.com/usercards/viewcard/.+#i' => array( 'https://www.someecards.com/v2/oembed/', true ), |
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'#https?://some\.ly\/.+#i' => array( 'https://www.someecards.com/v2/oembed/', true ), |
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); |
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if ( ! empty( self::$early_providers['add'] ) ) { |
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foreach ( self::$early_providers['add'] as $format => $data ) { |
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$providers[ $format ] = $data; |
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} |
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} |
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if ( ! empty( self::$early_providers['remove'] ) ) { |
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foreach ( self::$early_providers['remove'] as $format ) { |
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unset( $providers[ $format ] ); |
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} |
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} |
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self::$early_providers = array(); |
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/** |
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* Filters the list of whitelisted oEmbed providers. |
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* |
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* Since WordPress 4.4, oEmbed discovery is enabled for all users and allows embedding of sanitized |
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* iframes. The providers in this list are whitelisted, meaning they are trusted and allowed to |
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* embed any content, such as iframes, videos, JavaScript, and arbitrary HTML. |
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* |
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* Supported providers: |
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* |
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* | Provider | Flavor | Supports HTTPS | Since | |
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* | ------------ | ----------------------------------------- | :------------: | ------- | |
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* | Dailymotion | dailymotion.com | Yes | 2.9.0 | |
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* | Flickr | flickr.com | Yes | 2.9.0 | |
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* | Hulu | hulu.com | Yes | 2.9.0 | |
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* | Scribd | scribd.com | Yes | 2.9.0 | |
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* | Vimeo | vimeo.com | Yes | 2.9.0 | |
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* | WordPress.tv | wordpress.tv | Yes | 2.9.0 | |
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* | YouTube | youtube.com/watch | Yes | 2.9.0 | |
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* | Crowdsignal | polldaddy.com | Yes | 3.0.0 | |
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* | SmugMug | smugmug.com | Yes | 3.0.0 | |
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* | YouTube | youtu.be | Yes | 3.0.0 | |
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* | Twitter | twitter.com | Yes | 3.4.0 | |
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* | Instagram | instagram.com | Yes | 3.5.0 | |
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* | Instagram | instagr.am | Yes | 3.5.0 | |
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* | Slideshare | slideshare.net | Yes | 3.5.0 | |
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* | SoundCloud | soundcloud.com | Yes | 3.5.0 | |
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* | Dailymotion | dai.ly | Yes | 3.6.0 | |
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* | Flickr | flic.kr | Yes | 3.6.0 | |
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* | Spotify | spotify.com | Yes | 3.6.0 | |
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* | Imgur | imgur.com | Yes | 3.9.0 | |
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* | Meetup.com | meetup.com | Yes | 3.9.0 | |
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* | Meetup.com | meetu.ps | Yes | 3.9.0 | |
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* | Animoto | animoto.com | Yes | 4.0.0 | |
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* | Animoto | video214.com | Yes | 4.0.0 | |
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* | CollegeHumor | collegehumor.com | Yes | 4.0.0 | |
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* | Issuu | issuu.com | Yes | 4.0.0 | |
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* | Mixcloud | mixcloud.com | Yes | 4.0.0 | |
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* | Crowdsignal | poll.fm | Yes | 4.0.0 | |
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* | TED | ted.com | Yes | 4.0.0 | |
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* | YouTube | youtube.com/playlist | Yes | 4.0.0 | |
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* | Tumblr | tumblr.com | Yes | 4.2.0 | |
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* | Kickstarter | kickstarter.com | Yes | 4.2.0 | |
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* | Kickstarter | kck.st | Yes | 4.2.0 | |
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* | Cloudup | cloudup.com | Yes | 4.3.0 | |
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* | ReverbNation | reverbnation.com | Yes | 4.4.0 | |
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* | VideoPress | videopress.com | Yes | 4.4.0 | |
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* | Reddit | reddit.com | Yes | 4.4.0 | |
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* | Speaker Deck | speakerdeck.com | Yes | 4.4.0 | |
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* | Twitter | twitter.com/timelines | Yes | 4.5.0 | |
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* | Twitter | twitter.com/moments | Yes | 4.5.0 | |
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* | Facebook | facebook.com | Yes | 4.7.0 | |
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* | Twitter | twitter.com/user | Yes | 4.7.0 | |
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* | Twitter | twitter.com/likes | Yes | 4.7.0 | |
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* | Twitter | twitter.com/lists | Yes | 4.7.0 | |
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* | Screencast | screencast.com | Yes | 4.8.0 | |
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* | Amazon | amazon.com (com.mx, com.br, ca) | Yes | 4.9.0 | |
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* | Amazon | amazon.de (fr, it, es, in, nl, ru, co.uk) | Yes | 4.9.0 | |
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* | Amazon | amazon.co.jp (com.au) | Yes | 4.9.0 | |
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* | Amazon | amazon.cn | Yes | 4.9.0 | |
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* | Amazon | a.co | Yes | 4.9.0 | |
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* | Amazon | amzn.to (eu, in, asia) | Yes | 4.9.0 | |
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* | Amazon | z.cn | Yes | 4.9.0 | |
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* | Someecards | someecards.com | Yes | 4.9.0 | |
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* | Someecards | some.ly | Yes | 4.9.0 | |
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* | Crowdsignal | survey.fm | Yes | 5.1.0 | |
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* | Instagram TV | instagram.com | Yes | 5.1.0 | |
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* | Instagram TV | instagr.am | Yes | 5.1.0 | |
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* |
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* No longer supported providers: |
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* |
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* | Provider | Flavor | Supports HTTPS | Since | Removed | |
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* | ------------ | -------------------- | :------------: | --------- | --------- | |
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* | Qik | qik.com | Yes | 2.9.0 | 3.9.0 | |
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* | Viddler | viddler.com | Yes | 2.9.0 | 4.0.0 | |
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* | Revision3 | revision3.com | No | 2.9.0 | 4.2.0 | |
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* | Blip | blip.tv | No | 2.9.0 | 4.4.0 | |
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* | Rdio | rdio.com | Yes | 3.6.0 | 4.4.1 | |
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* | Rdio | rd.io | Yes | 3.6.0 | 4.4.1 | |
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* | Vine | vine.co | Yes | 4.1.0 | 4.9.0 | |
| 9 | 212 |
* | Photobucket | photobucket.com | No | 2.9.0 | 5.1.0 | |
213 |
* | Funny or Die | funnyordie.com | Yes | 3.0.0 | 5.1.0 | |
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| 5 | 214 |
* |
| 0 | 215 |
* @see wp_oembed_add_provider() |
216 |
* |
|
217 |
* @since 2.9.0 |
|
218 |
* |
|
| 9 | 219 |
* @param array[] $providers An array of arrays containing data about popular oEmbed providers. |
| 0 | 220 |
*/ |
221 |
$this->providers = apply_filters( 'oembed_providers', $providers ); |
|
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||
223 |
// Fix any embeds that contain new lines in the middle of the HTML which breaks wpautop(). |
|
| 9 | 224 |
add_filter( 'oembed_dataparse', array( $this, '_strip_newlines' ), 10, 3 ); |
| 0 | 225 |
} |
226 |
||
227 |
/** |
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* Exposes private/protected methods for backward compatibility. |
| 5 | 229 |
* |
230 |
* @since 4.0.0 |
|
231 |
* |
|
| 9 | 232 |
* @param string $name Method to call. |
| 5 | 233 |
* @param array $arguments Arguments to pass when calling. |
234 |
* @return mixed|bool Return value of the callback, false otherwise. |
|
235 |
*/ |
|
236 |
public function __call( $name, $arguments ) { |
|
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if ( in_array( $name, $this->compat_methods ) ) { |
|
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return call_user_func_array( array( $this, $name ), $arguments ); |
|
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} |
|
240 |
return false; |
|
241 |
} |
|
242 |
||
243 |
/** |
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* Takes a URL and returns the corresponding oEmbed provider's URL, if there is one. |
|
245 |
* |
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* @since 4.0.0 |
|
| 0 | 247 |
* |
248 |
* @see WP_oEmbed::discover() |
|
249 |
* |
|
| 5 | 250 |
* @param string $url The URL to the content. |
251 |
* @param string|array $args Optional provider arguments. |
|
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* @return false|string False on failure, otherwise the oEmbed provider URL. |
| 0 | 253 |
*/ |
| 5 | 254 |
public function get_provider( $url, $args = '' ) { |
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$args = wp_parse_args( $args ); |
| 5 | 256 |
|
| 0 | 257 |
$provider = false; |
258 |
||
| 9 | 259 |
if ( ! isset( $args['discover'] ) ) { |
| 0 | 260 |
$args['discover'] = true; |
| 9 | 261 |
} |
| 0 | 262 |
|
263 |
foreach ( $this->providers as $matchmask => $data ) { |
|
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list( $providerurl, $regex ) = $data; |
|
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// Turn the asterisk-type provider URLs into regex |
|
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if ( ! $regex ) { |
| 0 | 268 |
$matchmask = '#' . str_replace( '___wildcard___', '(.+)', preg_quote( str_replace( '*', '___wildcard___', $matchmask ), '#' ) ) . '#i'; |
269 |
$matchmask = preg_replace( '|^#http\\\://|', '#https?\://', $matchmask ); |
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} |
|
271 |
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272 |
if ( preg_match( $matchmask, $url ) ) { |
|
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$provider = str_replace( '{format}', 'json', $providerurl ); // JSON is easier to deal with than XML |
|
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break; |
|
275 |
} |
|
276 |
} |
|
277 |
||
| 9 | 278 |
if ( ! $provider && $args['discover'] ) { |
| 0 | 279 |
$provider = $this->discover( $url ); |
| 9 | 280 |
} |
| 0 | 281 |
|
| 5 | 282 |
return $provider; |
283 |
} |
|
284 |
||
285 |
/** |
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* Adds an oEmbed provider. |
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* |
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* The provider is added just-in-time when wp_oembed_add_provider() is called before |
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* the {@see 'plugins_loaded'} hook. |
| 5 | 290 |
* |
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* The just-in-time addition is for the benefit of the {@see 'oembed_providers'} filter. |
| 5 | 292 |
* |
293 |
* @since 4.0.0 |
|
294 |
* |
|
295 |
* @see wp_oembed_add_provider() |
|
296 |
* |
|
297 |
* @param string $format Format of URL that this provider can handle. You can use |
|
298 |
* asterisks as wildcards. |
|
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* @param string $provider The URL to the oEmbed provider.. |
|
300 |
* @param bool $regex Optional. Whether the $format parameter is in a regex format. |
|
301 |
* Default false. |
|
302 |
*/ |
|
303 |
public static function _add_provider_early( $format, $provider, $regex = false ) { |
|
304 |
if ( empty( self::$early_providers['add'] ) ) { |
|
305 |
self::$early_providers['add'] = array(); |
|
306 |
} |
|
307 |
||
308 |
self::$early_providers['add'][ $format ] = array( $provider, $regex ); |
|
309 |
} |
|
310 |
||
311 |
/** |
|
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* Removes an oEmbed provider. |
| 5 | 313 |
* |
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* The provider is removed just-in-time when wp_oembed_remove_provider() is called before |
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* the {@see 'plugins_loaded'} hook. |
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* |
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* The just-in-time removal is for the benefit of the {@see 'oembed_providers'} filter. |
| 5 | 318 |
* |
319 |
* @since 4.0.0 |
|
320 |
* |
|
321 |
* @see wp_oembed_remove_provider() |
|
322 |
* |
|
323 |
* @param string $format The format of URL that this provider can handle. You can use |
|
324 |
* asterisks as wildcards. |
|
325 |
*/ |
|
326 |
public static function _remove_provider_early( $format ) { |
|
327 |
if ( empty( self::$early_providers['remove'] ) ) { |
|
328 |
self::$early_providers['remove'] = array(); |
|
329 |
} |
|
330 |
||
331 |
self::$early_providers['remove'][] = $format; |
|
332 |
} |
|
333 |
||
334 |
/** |
|
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* Takes a URL and attempts to return the oEmbed data. |
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* |
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* @see WP_oEmbed::fetch() |
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338 |
* |
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* @since 4.8.0 |
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340 |
* |
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* @param string $url The URL to the content that should be attempted to be embedded. |
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* @param array|string $args Optional. Arguments, usually passed from a shortcode. Default empty. |
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* @return false|object False on failure, otherwise the result in the form of an object. |
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*/ |
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public function get_data( $url, $args = '' ) { |
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$args = wp_parse_args( $args ); |
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347 |
|
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$provider = $this->get_provider( $url, $args ); |
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349 |
|
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if ( ! $provider ) { |
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return false; |
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352 |
} |
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353 |
|
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$data = $this->fetch( $provider, $url, $args ); |
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355 |
|
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356 |
if ( false === $data ) { |
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357 |
return false; |
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358 |
} |
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359 |
|
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return $data; |
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361 |
} |
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362 |
|
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/** |
| 5 | 364 |
* The do-it-all function that takes a URL and attempts to return the HTML. |
365 |
* |
|
366 |
* @see WP_oEmbed::fetch() |
|
367 |
* @see WP_oEmbed::data2html() |
|
368 |
* |
|
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369 |
* @since 2.9.0 |
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370 |
* |
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371 |
* @param string $url The URL to the content that should be attempted to be embedded. |
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* @param array|string $args Optional. Arguments, usually passed from a shortcode. Default empty. |
| 5 | 373 |
* @return false|string False on failure, otherwise the UNSANITIZED (and potentially unsafe) HTML that should be used to embed. |
374 |
*/ |
|
375 |
public function get_html( $url, $args = '' ) { |
|
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376 |
/** |
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377 |
* Filters the oEmbed result before any HTTP requests are made. |
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378 |
* |
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379 |
* This allows one to short-circuit the default logic, perhaps by |
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380 |
* replacing it with a routine that is more optimal for your setup. |
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381 |
* |
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382 |
* Passing a non-null value to the filter will effectively short-circuit retrieval, |
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* returning the passed value instead. |
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384 |
* |
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* @since 4.5.3 |
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386 |
* |
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* @param null|string $result The UNSANITIZED (and potentially unsafe) HTML that should be used to embed. Default null. |
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388 |
* @param string $url The URL to the content that should be attempted to be embedded. |
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* @param array $args Optional. Arguments, usually passed from a shortcode. Default empty. |
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*/ |
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$pre = apply_filters( 'pre_oembed_result', null, $url, $args ); |
| 5 | 392 |
|
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if ( null !== $pre ) { |
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return $pre; |
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395 |
} |
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396 |
|
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$data = $this->get_data( $url, $args ); |
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398 |
|
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399 |
if ( false === $data ) { |
| 0 | 400 |
return false; |
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401 |
} |
| 0 | 402 |
|
403 |
/** |
|
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* Filters the HTML returned by the oEmbed provider. |
| 0 | 405 |
* |
406 |
* @since 2.9.0 |
|
407 |
* |
|
| 9 | 408 |
* @param string|false $data The returned oEmbed HTML (false if unsafe). |
409 |
* @param string $url URL of the content to be embedded. |
|
410 |
* @param array $args Optional arguments, usually passed from a shortcode. |
|
| 0 | 411 |
*/ |
412 |
return apply_filters( 'oembed_result', $this->data2html( $data, $url ), $url, $args ); |
|
413 |
} |
|
414 |
||
415 |
/** |
|
| 5 | 416 |
* Attempts to discover link tags at the given URL for an oEmbed provider. |
| 0 | 417 |
* |
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418 |
* @since 2.9.0 |
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419 |
* |
| 5 | 420 |
* @param string $url The URL that should be inspected for discovery `<link>` tags. |
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* @return false|string False on failure, otherwise the oEmbed provider URL. |
| 0 | 422 |
*/ |
| 5 | 423 |
public function discover( $url ) { |
| 0 | 424 |
$providers = array(); |
| 9 | 425 |
$args = array( |
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426 |
'limit_response_size' => 153600, // 150 KB |
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427 |
); |
| 0 | 428 |
|
| 5 | 429 |
/** |
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430 |
* Filters oEmbed remote get arguments. |
| 5 | 431 |
* |
432 |
* @since 4.0.0 |
|
433 |
* |
|
434 |
* @see WP_Http::request() |
|
435 |
* |
|
436 |
* @param array $args oEmbed remote get arguments. |
|
437 |
* @param string $url URL to be inspected. |
|
438 |
*/ |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
439 |
$args = apply_filters( 'oembed_remote_get_args', $args, $url ); |
| 5 | 440 |
|
| 0 | 441 |
// Fetch URL content |
| 5 | 442 |
$request = wp_safe_remote_get( $url, $args ); |
443 |
if ( $html = wp_remote_retrieve_body( $request ) ) { |
|
| 0 | 444 |
|
445 |
/** |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
446 |
* Filters the link types that contain oEmbed provider URLs. |
| 0 | 447 |
* |
448 |
* @since 2.9.0 |
|
449 |
* |
|
| 9 | 450 |
* @param string[] $format Array of oEmbed link types. Accepts 'application/json+oembed', |
451 |
* 'text/xml+oembed', and 'application/xml+oembed' (incorrect, |
|
452 |
* used by at least Vimeo). |
|
| 0 | 453 |
*/ |
| 9 | 454 |
$linktypes = apply_filters( |
455 |
'oembed_linktypes', |
|
456 |
array( |
|
457 |
'application/json+oembed' => 'json', |
|
458 |
'text/xml+oembed' => 'xml', |
|
459 |
'application/xml+oembed' => 'xml', |
|
460 |
) |
|
461 |
); |
|
| 0 | 462 |
|
463 |
// Strip <body> |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
464 |
if ( $html_head_end = stripos( $html, '</head>' ) ) { |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
465 |
$html = substr( $html, 0, $html_head_end ); |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
466 |
} |
| 0 | 467 |
|
468 |
// Do a quick check |
|
469 |
$tagfound = false; |
|
470 |
foreach ( $linktypes as $linktype => $format ) { |
|
| 9 | 471 |
if ( stripos( $html, $linktype ) ) { |
| 0 | 472 |
$tagfound = true; |
473 |
break; |
|
474 |
} |
|
475 |
} |
|
476 |
||
| 5 | 477 |
if ( $tagfound && preg_match_all( '#<link([^<>]+)/?>#iU', $html, $links ) ) { |
| 0 | 478 |
foreach ( $links[1] as $link ) { |
479 |
$atts = shortcode_parse_atts( $link ); |
|
480 |
||
| 9 | 481 |
if ( ! empty( $atts['type'] ) && ! empty( $linktypes[ $atts['type'] ] ) && ! empty( $atts['href'] ) ) { |
482 |
$providers[ $linktypes[ $atts['type'] ] ] = htmlspecialchars_decode( $atts['href'] ); |
|
| 0 | 483 |
|
484 |
// Stop here if it's JSON (that's all we need) |
|
| 9 | 485 |
if ( 'json' == $linktypes[ $atts['type'] ] ) { |
| 0 | 486 |
break; |
| 9 | 487 |
} |
| 0 | 488 |
} |
489 |
} |
|
490 |
} |
|
491 |
} |
|
492 |
||
493 |
// JSON is preferred to XML |
|
| 9 | 494 |
if ( ! empty( $providers['json'] ) ) { |
| 0 | 495 |
return $providers['json']; |
| 9 | 496 |
} elseif ( ! empty( $providers['xml'] ) ) { |
| 0 | 497 |
return $providers['xml']; |
| 9 | 498 |
} else { |
| 0 | 499 |
return false; |
| 9 | 500 |
} |
| 0 | 501 |
} |
502 |
||
503 |
/** |
|
504 |
* Connects to a oEmbed provider and returns the result. |
|
505 |
* |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
506 |
* @since 2.9.0 |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
507 |
* |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
508 |
* @param string $provider The URL to the oEmbed provider. |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
509 |
* @param string $url The URL to the content that is desired to be embedded. |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
510 |
* @param array|string $args Optional. Arguments, usually passed from a shortcode. Default empty. |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
511 |
* @return false|object False on failure, otherwise the result in the form of an object. |
| 0 | 512 |
*/ |
| 5 | 513 |
public function fetch( $provider, $url, $args = '' ) { |
514 |
$args = wp_parse_args( $args, wp_embed_defaults( $url ) ); |
|
| 0 | 515 |
|
516 |
$provider = add_query_arg( 'maxwidth', (int) $args['width'], $provider ); |
|
517 |
$provider = add_query_arg( 'maxheight', (int) $args['height'], $provider ); |
|
| 9 | 518 |
$provider = add_query_arg( 'url', urlencode( $url ), $provider ); |
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
519 |
$provider = add_query_arg( 'dnt', 1, $provider ); |
| 0 | 520 |
|
521 |
/** |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
522 |
* Filters the oEmbed URL to be fetched. |
| 0 | 523 |
* |
524 |
* @since 2.9.0 |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
525 |
* @since 4.9.0 The `dnt` (Do Not Track) query parameter was added to all oEmbed provider URLs. |
| 0 | 526 |
* |
527 |
* @param string $provider URL of the oEmbed provider. |
|
528 |
* @param string $url URL of the content to be embedded. |
|
529 |
* @param array $args Optional arguments, usually passed from a shortcode. |
|
530 |
*/ |
|
531 |
$provider = apply_filters( 'oembed_fetch_url', $provider, $url, $args ); |
|
532 |
||
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
533 |
foreach ( array( 'json', 'xml' ) as $format ) { |
| 0 | 534 |
$result = $this->_fetch_with_format( $provider, $format ); |
| 9 | 535 |
if ( is_wp_error( $result ) && 'not-implemented' == $result->get_error_code() ) { |
| 0 | 536 |
continue; |
| 9 | 537 |
} |
| 0 | 538 |
return ( $result && ! is_wp_error( $result ) ) ? $result : false; |
539 |
} |
|
540 |
return false; |
|
541 |
} |
|
542 |
||
543 |
/** |
|
544 |
* Fetches result from an oEmbed provider for a specific format and complete provider URL |
|
545 |
* |
|
546 |
* @since 3.0.0 |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
547 |
* |
| 0 | 548 |
* @param string $provider_url_with_args URL to the provider with full arguments list (url, maxheight, etc.) |
549 |
* @param string $format Format to use |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
550 |
* @return false|object|WP_Error False on failure, otherwise the result in the form of an object. |
| 0 | 551 |
*/ |
| 5 | 552 |
private function _fetch_with_format( $provider_url_with_args, $format ) { |
| 0 | 553 |
$provider_url_with_args = add_query_arg( 'format', $format, $provider_url_with_args ); |
| 5 | 554 |
|
555 |
/** This filter is documented in wp-includes/class-oembed.php */ |
|
556 |
$args = apply_filters( 'oembed_remote_get_args', array(), $provider_url_with_args ); |
|
557 |
||
558 |
$response = wp_safe_remote_get( $provider_url_with_args, $args ); |
|
| 9 | 559 |
if ( 501 == wp_remote_retrieve_response_code( $response ) ) { |
| 0 | 560 |
return new WP_Error( 'not-implemented' ); |
| 9 | 561 |
} |
562 |
if ( ! $body = wp_remote_retrieve_body( $response ) ) { |
|
| 0 | 563 |
return false; |
| 9 | 564 |
} |
| 0 | 565 |
$parse_method = "_parse_$format"; |
566 |
return $this->$parse_method( $body ); |
|
567 |
} |
|
568 |
||
569 |
/** |
|
570 |
* Parses a json response body. |
|
571 |
* |
|
572 |
* @since 3.0.0 |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
573 |
* |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
574 |
* @param string $response_body |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
575 |
* @return object|false |
| 0 | 576 |
*/ |
| 5 | 577 |
private function _parse_json( $response_body ) { |
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
578 |
$data = json_decode( trim( $response_body ) ); |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
579 |
return ( $data && is_object( $data ) ) ? $data : false; |
| 0 | 580 |
} |
581 |
||
582 |
/** |
|
583 |
* Parses an XML response body. |
|
584 |
* |
|
585 |
* @since 3.0.0 |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
586 |
* |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
587 |
* @param string $response_body |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
588 |
* @return object|false |
| 0 | 589 |
*/ |
| 5 | 590 |
private function _parse_xml( $response_body ) { |
| 9 | 591 |
if ( ! function_exists( 'libxml_disable_entity_loader' ) ) { |
| 0 | 592 |
return false; |
| 9 | 593 |
} |
| 0 | 594 |
|
595 |
$loader = libxml_disable_entity_loader( true ); |
|
596 |
$errors = libxml_use_internal_errors( true ); |
|
597 |
||
598 |
$return = $this->_parse_xml_body( $response_body ); |
|
599 |
||
600 |
libxml_use_internal_errors( $errors ); |
|
601 |
libxml_disable_entity_loader( $loader ); |
|
602 |
||
603 |
return $return; |
|
604 |
} |
|
605 |
||
606 |
/** |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
607 |
* Serves as a helper function for parsing an XML response body. |
| 0 | 608 |
* |
609 |
* @since 3.6.0 |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
610 |
* |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
611 |
* @param string $response_body |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
612 |
* @return stdClass|false |
| 0 | 613 |
*/ |
614 |
private function _parse_xml_body( $response_body ) { |
|
| 9 | 615 |
if ( ! function_exists( 'simplexml_import_dom' ) || ! class_exists( 'DOMDocument', false ) ) { |
| 0 | 616 |
return false; |
| 9 | 617 |
} |
| 0 | 618 |
|
| 9 | 619 |
$dom = new DOMDocument; |
| 0 | 620 |
$success = $dom->loadXML( $response_body ); |
| 9 | 621 |
if ( ! $success ) { |
| 0 | 622 |
return false; |
| 9 | 623 |
} |
| 0 | 624 |
|
| 9 | 625 |
if ( isset( $dom->doctype ) ) { |
| 0 | 626 |
return false; |
| 9 | 627 |
} |
| 0 | 628 |
|
629 |
foreach ( $dom->childNodes as $child ) { |
|
| 9 | 630 |
if ( XML_DOCUMENT_TYPE_NODE === $child->nodeType ) { |
| 0 | 631 |
return false; |
| 9 | 632 |
} |
| 0 | 633 |
} |
634 |
||
635 |
$xml = simplexml_import_dom( $dom ); |
|
| 9 | 636 |
if ( ! $xml ) { |
| 0 | 637 |
return false; |
| 9 | 638 |
} |
| 0 | 639 |
|
640 |
$return = new stdClass; |
|
641 |
foreach ( $xml as $key => $value ) { |
|
642 |
$return->$key = (string) $value; |
|
643 |
} |
|
644 |
||
645 |
return $return; |
|
646 |
} |
|
647 |
||
648 |
/** |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
649 |
* Converts a data object from WP_oEmbed::fetch() and returns the HTML. |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
650 |
* |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
651 |
* @since 2.9.0 |
| 0 | 652 |
* |
653 |
* @param object $data A data object result from an oEmbed provider. |
|
654 |
* @param string $url The URL to the content that is desired to be embedded. |
|
| 5 | 655 |
* @return false|string False on error, otherwise the HTML needed to embed. |
| 0 | 656 |
*/ |
| 5 | 657 |
public function data2html( $data, $url ) { |
| 9 | 658 |
if ( ! is_object( $data ) || empty( $data->type ) ) { |
| 0 | 659 |
return false; |
| 9 | 660 |
} |
| 0 | 661 |
|
662 |
$return = false; |
|
663 |
||
664 |
switch ( $data->type ) { |
|
665 |
case 'photo': |
|
| 9 | 666 |
if ( empty( $data->url ) || empty( $data->width ) || empty( $data->height ) ) { |
| 0 | 667 |
break; |
| 9 | 668 |
} |
669 |
if ( ! is_string( $data->url ) || ! is_numeric( $data->width ) || ! is_numeric( $data->height ) ) { |
|
| 0 | 670 |
break; |
| 9 | 671 |
} |
| 0 | 672 |
|
| 9 | 673 |
$title = ! empty( $data->title ) && is_string( $data->title ) ? $data->title : ''; |
674 |
$return = '<a href="' . esc_url( $url ) . '"><img src="' . esc_url( $data->url ) . '" alt="' . esc_attr( $title ) . '" width="' . esc_attr( $data->width ) . '" height="' . esc_attr( $data->height ) . '" /></a>'; |
|
| 0 | 675 |
break; |
676 |
||
677 |
case 'video': |
|
678 |
case 'rich': |
|
| 9 | 679 |
if ( ! empty( $data->html ) && is_string( $data->html ) ) { |
| 0 | 680 |
$return = $data->html; |
| 9 | 681 |
} |
| 0 | 682 |
break; |
683 |
||
684 |
case 'link': |
|
| 9 | 685 |
if ( ! empty( $data->title ) && is_string( $data->title ) ) { |
| 0 | 686 |
$return = '<a href="' . esc_url( $url ) . '">' . esc_html( $data->title ) . '</a>'; |
| 9 | 687 |
} |
| 0 | 688 |
break; |
689 |
||
690 |
default: |
|
691 |
$return = false; |
|
692 |
} |
|
693 |
||
694 |
/** |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
695 |
* Filters the returned oEmbed HTML. |
| 0 | 696 |
* |
697 |
* Use this filter to add support for custom data types, or to filter the result. |
|
698 |
* |
|
699 |
* @since 2.9.0 |
|
700 |
* |
|
701 |
* @param string $return The returned oEmbed HTML. |
|
702 |
* @param object $data A data object result from an oEmbed provider. |
|
703 |
* @param string $url The URL of the content to be embedded. |
|
704 |
*/ |
|
705 |
return apply_filters( 'oembed_dataparse', $return, $data, $url ); |
|
706 |
} |
|
707 |
||
708 |
/** |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
709 |
* Strips any new lines from the HTML. |
| 0 | 710 |
* |
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
711 |
* @since 2.9.0 as strip_scribd_newlines() |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
712 |
* @since 3.0.0 |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
5
diff
changeset
|
713 |
* |
| 0 | 714 |
* @param string $html Existing HTML. |
715 |
* @param object $data Data object from WP_oEmbed::data2html() |
|
716 |
* @param string $url The original URL passed to oEmbed. |
|
717 |
* @return string Possibly modified $html |
|
718 |
*/ |
|
| 5 | 719 |
public function _strip_newlines( $html, $data, $url ) { |
720 |
if ( false === strpos( $html, "\n" ) ) { |
|
721 |
return $html; |
|
722 |
} |
|
723 |
||
| 9 | 724 |
$count = 1; |
725 |
$found = array(); |
|
726 |
$token = '__PRE__'; |
|
727 |
$search = array( "\t", "\n", "\r", ' ' ); |
|
728 |
$replace = array( '__TAB__', '__NL__', '__CR__', '__SPACE__' ); |
|
| 5 | 729 |
$tokenized = str_replace( $search, $replace, $html ); |
| 0 | 730 |
|
| 5 | 731 |
preg_match_all( '#(<pre[^>]*>.+?</pre>)#i', $tokenized, $matches, PREG_SET_ORDER ); |
732 |
foreach ( $matches as $i => $match ) { |
|
| 9 | 733 |
$tag_html = str_replace( $replace, $search, $match[0] ); |
| 5 | 734 |
$tag_token = $token . $i; |
735 |
||
736 |
$found[ $tag_token ] = $tag_html; |
|
| 9 | 737 |
$html = str_replace( $tag_html, $tag_token, $html, $count ); |
| 5 | 738 |
} |
739 |
||
740 |
$replaced = str_replace( $replace, $search, $html ); |
|
741 |
$stripped = str_replace( array( "\r\n", "\n" ), '', $replaced ); |
|
| 9 | 742 |
$pre = array_values( $found ); |
743 |
$tokens = array_keys( $found ); |
|
| 5 | 744 |
|
745 |
return str_replace( $tokens, $pre, $stripped ); |
|
| 0 | 746 |
} |
747 |
} |