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<?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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* Used internally by the {@link 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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* oEmbed class. |
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* |
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* @package WordPress |
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* @subpackage oEmbed |
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* @since 2.9.0 |
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*/ |
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class WP_oEmbed { |
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public $providers = array(); |
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public static $early_providers = array(); |
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private $compat_methods = array( '_fetch_with_format', '_parse_json', '_parse_xml', '_parse_body' ); |
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/** |
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* Constructor |
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* |
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* @since 2.9.0 |
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*/ |
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public function __construct() { |
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$providers = array( |
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'#http://(www\.)?youtube\.com/watch.*#i' => array( 'http://www.youtube.com/oembed', true ), |
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'#https://(www\.)?youtube\.com/watch.*#i' => array( 'http://www.youtube.com/oembed?scheme=https', true ), |
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'#http://(www\.)?youtube\.com/playlist.*#i' => array( 'http://www.youtube.com/oembed', true ), |
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'#https://(www\.)?youtube\.com/playlist.*#i' => array( 'http://www.youtube.com/oembed?scheme=https', true ), |
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'#http://youtu\.be/.*#i' => array( 'http://www.youtube.com/oembed', true ), |
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'#https://youtu\.be/.*#i' => array( 'http://www.youtube.com/oembed?scheme=https', true ), |
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'http://blip.tv/*' => array( 'http://blip.tv/oembed/', false ), |
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'#https?://(.+\.)?vimeo\.com/.*#i' => array( 'http://vimeo.com/api/oembed.{format}', true ), |
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'#https?://(www\.)?dailymotion\.com/.*#i' => array( 'http://www.dailymotion.com/services/oembed', true ), |
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'http://dai.ly/*' => array( 'http://www.dailymotion.com/services/oembed', false ), |
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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( 'http://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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'http://i*.photobucket.com/albums/*' => array( 'http://photobucket.com/oembed', false ), |
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'http://gi*.photobucket.com/groups/*' => array( 'http://photobucket.com/oembed', false ), |
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'#https?://(www\.)?scribd\.com/doc/.*#i' => array( 'http://www.scribd.com/services/oembed', true ), |
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'#https?://wordpress.tv/.*#i' => array( 'http://wordpress.tv/oembed/', true ), |
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'#https?://(.+\.)?polldaddy\.com/.*#i' => array( 'https://polldaddy.com/oembed/', true ), |
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'#https?://poll\.fm/.*#i' => array( 'https://polldaddy.com/oembed/', true ), |
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'#https?://(www\.)?funnyordie\.com/videos/.*#i' => array( 'http://www.funnyordie.com/oembed', true ), |
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'#https?://(www\.)?twitter\.com/.+?/status(es)?/.*#i' => array( 'https://api.twitter.com/1/statuses/oembed.{format}', true ), |
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'#https?://vine.co/v/.*#i' => array( 'https://vine.co/oembed.{format}', true ), |
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'#https?://(www\.)?soundcloud\.com/.*#i' => array( 'http://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?://instagr(\.am|am\.com)/p/.*#i' => array( 'https://api.instagram.com/oembed', true ), |
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'#https?://(www\.)?rdio\.com/.*#i' => array( 'http://www.rdio.com/api/oembed/', true ), |
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'#https?://rd\.io/x/.*#i' => array( 'http://www.rdio.com/api/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( 'http://api.imgur.com/oembed', true ), |
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'#https?://(www\.)?meetu(\.ps|p\.com)/.*#i' => array( 'http://api.meetup.com/oembed', true ), |
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'#https?://(www\.)?issuu\.com/.+/docs/.+#i' => array( 'http://issuu.com/oembed_wp', true ), |
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'#https?://(www\.)?collegehumor\.com/video/.*#i' => array( 'http://www.collegehumor.com/oembed.{format}', true ), |
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'#https?://(www\.)?mixcloud\.com/.*#i' => array( 'http://www.mixcloud.com/oembed', true ), |
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'#https?://(www\.|embed\.)?ted\.com/talks/.*#i' => array( 'http://www.ted.com/talks/oembed.{format}', true ), |
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'#https?://(www\.)?(animoto|video214)\.com/play/.*#i' => array( 'http://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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); |
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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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* Filter the list of oEmbed providers. |
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* |
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* Discovery is disabled for users lacking the unfiltered_html capability. |
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* Only providers in this array will be used for those users. |
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* |
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* Supported providers: |
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* |
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* | ------------ | -------------------- | ----- | --------- | |
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* | Provider | Flavor | SSL | Since | |
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* | ------------ | -------------------- | ----- | --------- | |
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* | Blip | blip.tv | ! | 2.9.0 | |
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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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* | Photobucket | photobucket.com | ! | 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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* | ------------ | -------------------- | ----- | --------- | |
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* | Funny or Die | funnyordie.com | Yes | 3.0.0 | |
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* | Polldaddy | 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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* | ------------ | -------------------- | ----- | --------- | |
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* | Twitter | twitter.com | Yes | 3.4.0 | |
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* | ------------ | -------------------- | ----- | --------- | |
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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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* | ------------ | -------------------- | ----- | --------- | |
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* | Dailymotion | dai.ly | ! | 3.6.0 | |
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* | Flickr | flic.kr | Yes | 3.6.0 | |
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* | Rdio | rdio.com | Yes | 3.6.0 | |
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* | Rdio | rd.io | Yes | 3.6.0 | |
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* | Spotify | spotify.com | Yes | 3.6.0 | |
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* | ------------ | -------------------- | ----- | --------- | |
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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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* | ------------ | -------------------- | ----- | --------- | |
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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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* | Polldaddy | 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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* | ------------ | -------------------- | ----- | --------- | |
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* | Vine | vine.co | Yes | 4.1.0 | |
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* | ------------ | -------------------- | ----- | --------- | |
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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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* | ------------ | -------------------- | ----- | --------- | |
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* |
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* No longer supported providers: |
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* |
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* | ------------ | -------------------- | ----- | --------- | --------- | |
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* | Provider | Flavor | SSL | Since | Removed | |
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* | ------------ | -------------------- | ----- | --------- | --------- | |
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* | Qik | qik.com | Yes | 2.9.0 | 3.9.0 | |
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* | ------------ | -------------------- | ----- | --------- | --------- | |
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* | Viddler | viddler.com | Yes | 2.9.0 | 4.0.0 | |
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* | ------------ | -------------------- | ----- | --------- | --------- | |
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* | Revision3 | revision3.com | ! | 2.9.0 | 4.2.0 | |
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* | ------------ | -------------------- | ----- | --------- | --------- | |
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* |
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* @see wp_oembed_add_provider() |
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* |
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* @since 2.9.0 |
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* |
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* @param array $providers An array of popular oEmbed providers. |
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*/ |
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$this->providers = apply_filters( 'oembed_providers', $providers ); |
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// Fix any embeds that contain new lines in the middle of the HTML which breaks wpautop(). |
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add_filter( 'oembed_dataparse', array($this, '_strip_newlines'), 10, 3 ); |
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} |
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/** |
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* Make private/protected methods readable for backwards compatibility. |
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* |
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* @since 4.0.0 |
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* @access public |
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* |
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* @param callable $name Method to call. |
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* @param array $arguments Arguments to pass when calling. |
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* @return mixed|bool Return value of the callback, false otherwise. |
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*/ |
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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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} |
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return false; |
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} |
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/** |
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* Takes a URL and returns the corresponding oEmbed provider's URL, if there is one. |
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* |
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* @since 4.0.0 |
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* @access public |
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* |
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* @see WP_oEmbed::discover() |
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* |
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* @param string $url The URL to the content. |
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* @param string|array $args Optional provider arguments. |
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* @return bool|string False on failure, otherwise the oEmbed provider URL. |
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*/ |
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public function get_provider( $url, $args = '' ) { |
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$provider = false; |
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if ( !isset($args['discover']) ) |
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$args['discover'] = true; |
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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 ) { |
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$matchmask = '#' . str_replace( '___wildcard___', '(.+)', preg_quote( str_replace( '*', '___wildcard___', $matchmask ), '#' ) ) . '#i'; |
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$matchmask = preg_replace( '|^#http\\\://|', '#https?\://', $matchmask ); |
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} |
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if ( preg_match( $matchmask, $url ) ) { |
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$provider = str_replace( '{format}', 'json', $providerurl ); // JSON is easier to deal with than XML |
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break; |
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} |
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} |
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if ( !$provider && $args['discover'] ) |
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$provider = $this->discover( $url ); |
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return $provider; |
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} |
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/** |
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* Add an oEmbed provider just-in-time when wp_oembed_add_provider() is called |
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* before the 'plugins_loaded' hook. |
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* |
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* The just-in-time addition is for the benefit of the 'oembed_providers' filter. |
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* |
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* @since 4.0.0 |
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* @access public |
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* @static |
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* |
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* @see wp_oembed_add_provider() |
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* |
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* @param string $format Format of URL that this provider can handle. You can use |
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* asterisks as wildcards. |
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* @param string $provider The URL to the oEmbed provider.. |
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* @param bool $regex Optional. Whether the $format parameter is in a regex format. |
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* Default false. |
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*/ |
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public static function _add_provider_early( $format, $provider, $regex = false ) { |
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if ( empty( self::$early_providers['add'] ) ) { |
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self::$early_providers['add'] = array(); |
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} |
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self::$early_providers['add'][ $format ] = array( $provider, $regex ); |
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} |
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/** |
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* Remove an oEmbed provider just-in-time when wp_oembed_remove_provider() is called |
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* before the 'plugins_loaded' hook. |
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* |
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* The just-in-time removal is for the benefit of the 'oembed_providers' filter. |
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* |
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* @since 4.0.0 |
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* @access public |
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* @static |
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* |
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* @see wp_oembed_remove_provider() |
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* |
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* @param string $format The format of URL that this provider can handle. You can use |
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* asterisks as wildcards. |
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*/ |
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public static function _remove_provider_early( $format ) { |
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if ( empty( self::$early_providers['remove'] ) ) { |
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self::$early_providers['remove'] = array(); |
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} |
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self::$early_providers['remove'][] = $format; |
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} |
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/** |
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* The do-it-all function that takes a URL and attempts to return the HTML. |
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* |
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* @see WP_oEmbed::fetch() |
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* @see WP_oEmbed::data2html() |
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* |
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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 $args Optional arguments. Usually passed from a shortcode. |
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* @return false|string False on failure, otherwise the UNSANITIZED (and potentially unsafe) HTML that should be used to embed. |
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*/ |
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public function get_html( $url, $args = '' ) { |
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$provider = $this->get_provider( $url, $args ); |
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if ( !$provider || false === $data = $this->fetch( $provider, $url, $args ) ) |
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return false; |
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/** |
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* Filter the HTML returned by the oEmbed provider. |
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* |
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* @since 2.9.0 |
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* |
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* @param string $data The returned oEmbed HTML. |
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* @param string $url URL of the content to be embedded. |
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* @param array $args Optional arguments, usually passed from a shortcode. |
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*/ |
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return apply_filters( 'oembed_result', $this->data2html( $data, $url ), $url, $args ); |
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} |
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/** |
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* Attempts to discover link tags at the given URL for an oEmbed provider. |
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* |
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* @param string $url The URL that should be inspected for discovery `<link>` tags. |
|
0
|
309 |
* @return bool|string False on failure, otherwise the oEmbed provider URL. |
|
|
310 |
*/ |
|
5
|
311 |
public function discover( $url ) { |
|
0
|
312 |
$providers = array(); |
|
|
313 |
|
|
5
|
314 |
/** |
|
|
315 |
* Filter oEmbed remote get arguments. |
|
|
316 |
* |
|
|
317 |
* @since 4.0.0 |
|
|
318 |
* |
|
|
319 |
* @see WP_Http::request() |
|
|
320 |
* |
|
|
321 |
* @param array $args oEmbed remote get arguments. |
|
|
322 |
* @param string $url URL to be inspected. |
|
|
323 |
*/ |
|
|
324 |
$args = apply_filters( 'oembed_remote_get_args', array(), $url ); |
|
|
325 |
|
|
0
|
326 |
// Fetch URL content |
|
5
|
327 |
$request = wp_safe_remote_get( $url, $args ); |
|
|
328 |
if ( $html = wp_remote_retrieve_body( $request ) ) { |
|
0
|
329 |
|
|
|
330 |
/** |
|
|
331 |
* Filter the link types that contain oEmbed provider URLs. |
|
|
332 |
* |
|
|
333 |
* @since 2.9.0 |
|
|
334 |
* |
|
|
335 |
* @param array $format Array of oEmbed link types. Accepts 'application/json+oembed', |
|
|
336 |
* 'text/xml+oembed', and 'application/xml+oembed' (incorrect, |
|
|
337 |
* used by at least Vimeo). |
|
|
338 |
*/ |
|
|
339 |
$linktypes = apply_filters( 'oembed_linktypes', array( |
|
|
340 |
'application/json+oembed' => 'json', |
|
|
341 |
'text/xml+oembed' => 'xml', |
|
|
342 |
'application/xml+oembed' => 'xml', |
|
|
343 |
) ); |
|
|
344 |
|
|
|
345 |
// Strip <body> |
|
|
346 |
$html = substr( $html, 0, stripos( $html, '</head>' ) ); |
|
|
347 |
|
|
|
348 |
// Do a quick check |
|
|
349 |
$tagfound = false; |
|
|
350 |
foreach ( $linktypes as $linktype => $format ) { |
|
|
351 |
if ( stripos($html, $linktype) ) { |
|
|
352 |
$tagfound = true; |
|
|
353 |
break; |
|
|
354 |
} |
|
|
355 |
} |
|
|
356 |
|
|
5
|
357 |
if ( $tagfound && preg_match_all( '#<link([^<>]+)/?>#iU', $html, $links ) ) { |
|
0
|
358 |
foreach ( $links[1] as $link ) { |
|
|
359 |
$atts = shortcode_parse_atts( $link ); |
|
|
360 |
|
|
|
361 |
if ( !empty($atts['type']) && !empty($linktypes[$atts['type']]) && !empty($atts['href']) ) { |
|
5
|
362 |
$providers[$linktypes[$atts['type']]] = htmlspecialchars_decode( $atts['href'] ); |
|
0
|
363 |
|
|
|
364 |
// Stop here if it's JSON (that's all we need) |
|
|
365 |
if ( 'json' == $linktypes[$atts['type']] ) |
|
|
366 |
break; |
|
|
367 |
} |
|
|
368 |
} |
|
|
369 |
} |
|
|
370 |
} |
|
|
371 |
|
|
|
372 |
// JSON is preferred to XML |
|
|
373 |
if ( !empty($providers['json']) ) |
|
|
374 |
return $providers['json']; |
|
|
375 |
elseif ( !empty($providers['xml']) ) |
|
|
376 |
return $providers['xml']; |
|
|
377 |
else |
|
|
378 |
return false; |
|
|
379 |
} |
|
|
380 |
|
|
|
381 |
/** |
|
|
382 |
* Connects to a oEmbed provider and returns the result. |
|
|
383 |
* |
|
|
384 |
* @param string $provider The URL to the oEmbed provider. |
|
|
385 |
* @param string $url The URL to the content that is desired to be embedded. |
|
|
386 |
* @param array $args Optional arguments. Usually passed from a shortcode. |
|
|
387 |
* @return bool|object False on failure, otherwise the result in the form of an object. |
|
|
388 |
*/ |
|
5
|
389 |
public function fetch( $provider, $url, $args = '' ) { |
|
|
390 |
$args = wp_parse_args( $args, wp_embed_defaults( $url ) ); |
|
0
|
391 |
|
|
|
392 |
$provider = add_query_arg( 'maxwidth', (int) $args['width'], $provider ); |
|
|
393 |
$provider = add_query_arg( 'maxheight', (int) $args['height'], $provider ); |
|
|
394 |
$provider = add_query_arg( 'url', urlencode($url), $provider ); |
|
|
395 |
|
|
|
396 |
/** |
|
|
397 |
* Filter the oEmbed URL to be fetched. |
|
|
398 |
* |
|
|
399 |
* @since 2.9.0 |
|
|
400 |
* |
|
|
401 |
* @param string $provider URL of the oEmbed provider. |
|
|
402 |
* @param string $url URL of the content to be embedded. |
|
|
403 |
* @param array $args Optional arguments, usually passed from a shortcode. |
|
|
404 |
*/ |
|
|
405 |
$provider = apply_filters( 'oembed_fetch_url', $provider, $url, $args ); |
|
|
406 |
|
|
|
407 |
foreach( array( 'json', 'xml' ) as $format ) { |
|
|
408 |
$result = $this->_fetch_with_format( $provider, $format ); |
|
|
409 |
if ( is_wp_error( $result ) && 'not-implemented' == $result->get_error_code() ) |
|
|
410 |
continue; |
|
|
411 |
return ( $result && ! is_wp_error( $result ) ) ? $result : false; |
|
|
412 |
} |
|
|
413 |
return false; |
|
|
414 |
} |
|
|
415 |
|
|
|
416 |
/** |
|
|
417 |
* Fetches result from an oEmbed provider for a specific format and complete provider URL |
|
|
418 |
* |
|
|
419 |
* @since 3.0.0 |
|
|
420 |
* @access private |
|
|
421 |
* @param string $provider_url_with_args URL to the provider with full arguments list (url, maxheight, etc.) |
|
|
422 |
* @param string $format Format to use |
|
|
423 |
* @return bool|object False on failure, otherwise the result in the form of an object. |
|
|
424 |
*/ |
|
5
|
425 |
private function _fetch_with_format( $provider_url_with_args, $format ) { |
|
0
|
426 |
$provider_url_with_args = add_query_arg( 'format', $format, $provider_url_with_args ); |
|
5
|
427 |
|
|
|
428 |
/** This filter is documented in wp-includes/class-oembed.php */ |
|
|
429 |
$args = apply_filters( 'oembed_remote_get_args', array(), $provider_url_with_args ); |
|
|
430 |
|
|
|
431 |
$response = wp_safe_remote_get( $provider_url_with_args, $args ); |
|
0
|
432 |
if ( 501 == wp_remote_retrieve_response_code( $response ) ) |
|
|
433 |
return new WP_Error( 'not-implemented' ); |
|
|
434 |
if ( ! $body = wp_remote_retrieve_body( $response ) ) |
|
|
435 |
return false; |
|
|
436 |
$parse_method = "_parse_$format"; |
|
|
437 |
return $this->$parse_method( $body ); |
|
|
438 |
} |
|
|
439 |
|
|
|
440 |
/** |
|
|
441 |
* Parses a json response body. |
|
|
442 |
* |
|
|
443 |
* @since 3.0.0 |
|
|
444 |
* @access private |
|
|
445 |
*/ |
|
5
|
446 |
private function _parse_json( $response_body ) { |
|
0
|
447 |
return ( ( $data = json_decode( trim( $response_body ) ) ) && is_object( $data ) ) ? $data : false; |
|
|
448 |
} |
|
|
449 |
|
|
|
450 |
/** |
|
|
451 |
* Parses an XML response body. |
|
|
452 |
* |
|
|
453 |
* @since 3.0.0 |
|
|
454 |
* @access private |
|
|
455 |
*/ |
|
5
|
456 |
private function _parse_xml( $response_body ) { |
|
0
|
457 |
if ( ! function_exists( 'libxml_disable_entity_loader' ) ) |
|
|
458 |
return false; |
|
|
459 |
|
|
|
460 |
$loader = libxml_disable_entity_loader( true ); |
|
|
461 |
$errors = libxml_use_internal_errors( true ); |
|
|
462 |
|
|
|
463 |
$return = $this->_parse_xml_body( $response_body ); |
|
|
464 |
|
|
|
465 |
libxml_use_internal_errors( $errors ); |
|
|
466 |
libxml_disable_entity_loader( $loader ); |
|
|
467 |
|
|
|
468 |
return $return; |
|
|
469 |
} |
|
|
470 |
|
|
|
471 |
/** |
|
|
472 |
* Helper function for parsing an XML response body. |
|
|
473 |
* |
|
|
474 |
* @since 3.6.0 |
|
|
475 |
* @access private |
|
|
476 |
*/ |
|
|
477 |
private function _parse_xml_body( $response_body ) { |
|
|
478 |
if ( ! function_exists( 'simplexml_import_dom' ) || ! class_exists( 'DOMDocument' ) ) |
|
|
479 |
return false; |
|
|
480 |
|
|
|
481 |
$dom = new DOMDocument; |
|
|
482 |
$success = $dom->loadXML( $response_body ); |
|
|
483 |
if ( ! $success ) |
|
|
484 |
return false; |
|
|
485 |
|
|
|
486 |
if ( isset( $dom->doctype ) ) |
|
|
487 |
return false; |
|
|
488 |
|
|
|
489 |
foreach ( $dom->childNodes as $child ) { |
|
|
490 |
if ( XML_DOCUMENT_TYPE_NODE === $child->nodeType ) |
|
|
491 |
return false; |
|
|
492 |
} |
|
|
493 |
|
|
|
494 |
$xml = simplexml_import_dom( $dom ); |
|
|
495 |
if ( ! $xml ) |
|
|
496 |
return false; |
|
|
497 |
|
|
|
498 |
$return = new stdClass; |
|
|
499 |
foreach ( $xml as $key => $value ) { |
|
|
500 |
$return->$key = (string) $value; |
|
|
501 |
} |
|
|
502 |
|
|
|
503 |
return $return; |
|
|
504 |
} |
|
|
505 |
|
|
|
506 |
/** |
|
|
507 |
* Converts a data object from {@link WP_oEmbed::fetch()} and returns the HTML. |
|
|
508 |
* |
|
|
509 |
* @param object $data A data object result from an oEmbed provider. |
|
|
510 |
* @param string $url The URL to the content that is desired to be embedded. |
|
5
|
511 |
* @return false|string False on error, otherwise the HTML needed to embed. |
|
0
|
512 |
*/ |
|
5
|
513 |
public function data2html( $data, $url ) { |
|
0
|
514 |
if ( ! is_object( $data ) || empty( $data->type ) ) |
|
|
515 |
return false; |
|
|
516 |
|
|
|
517 |
$return = false; |
|
|
518 |
|
|
|
519 |
switch ( $data->type ) { |
|
|
520 |
case 'photo': |
|
|
521 |
if ( empty( $data->url ) || empty( $data->width ) || empty( $data->height ) ) |
|
|
522 |
break; |
|
|
523 |
if ( ! is_string( $data->url ) || ! is_numeric( $data->width ) || ! is_numeric( $data->height ) ) |
|
|
524 |
break; |
|
|
525 |
|
|
|
526 |
$title = ! empty( $data->title ) && is_string( $data->title ) ? $data->title : ''; |
|
|
527 |
$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>'; |
|
|
528 |
break; |
|
|
529 |
|
|
|
530 |
case 'video': |
|
|
531 |
case 'rich': |
|
|
532 |
if ( ! empty( $data->html ) && is_string( $data->html ) ) |
|
|
533 |
$return = $data->html; |
|
|
534 |
break; |
|
|
535 |
|
|
|
536 |
case 'link': |
|
|
537 |
if ( ! empty( $data->title ) && is_string( $data->title ) ) |
|
|
538 |
$return = '<a href="' . esc_url( $url ) . '">' . esc_html( $data->title ) . '</a>'; |
|
|
539 |
break; |
|
|
540 |
|
|
|
541 |
default: |
|
|
542 |
$return = false; |
|
|
543 |
} |
|
|
544 |
|
|
|
545 |
/** |
|
|
546 |
* Filter the returned oEmbed HTML. |
|
|
547 |
* |
|
|
548 |
* Use this filter to add support for custom data types, or to filter the result. |
|
|
549 |
* |
|
|
550 |
* @since 2.9.0 |
|
|
551 |
* |
|
|
552 |
* @param string $return The returned oEmbed HTML. |
|
|
553 |
* @param object $data A data object result from an oEmbed provider. |
|
|
554 |
* @param string $url The URL of the content to be embedded. |
|
|
555 |
*/ |
|
|
556 |
return apply_filters( 'oembed_dataparse', $return, $data, $url ); |
|
|
557 |
} |
|
|
558 |
|
|
|
559 |
/** |
|
|
560 |
* Strip any new lines from the HTML. |
|
|
561 |
* |
|
5
|
562 |
* @access public |
|
0
|
563 |
* @param string $html Existing HTML. |
|
|
564 |
* @param object $data Data object from WP_oEmbed::data2html() |
|
|
565 |
* @param string $url The original URL passed to oEmbed. |
|
|
566 |
* @return string Possibly modified $html |
|
|
567 |
*/ |
|
5
|
568 |
public function _strip_newlines( $html, $data, $url ) { |
|
|
569 |
if ( false === strpos( $html, "\n" ) ) { |
|
|
570 |
return $html; |
|
|
571 |
} |
|
|
572 |
|
|
|
573 |
$count = 1; |
|
|
574 |
$found = array(); |
|
|
575 |
$token = '__PRE__'; |
|
|
576 |
$search = array( "\t", "\n", "\r", ' ' ); |
|
|
577 |
$replace = array( '__TAB__', '__NL__', '__CR__', '__SPACE__' ); |
|
|
578 |
$tokenized = str_replace( $search, $replace, $html ); |
|
0
|
579 |
|
|
5
|
580 |
preg_match_all( '#(<pre[^>]*>.+?</pre>)#i', $tokenized, $matches, PREG_SET_ORDER ); |
|
|
581 |
foreach ( $matches as $i => $match ) { |
|
|
582 |
$tag_html = str_replace( $replace, $search, $match[0] ); |
|
|
583 |
$tag_token = $token . $i; |
|
|
584 |
|
|
|
585 |
$found[ $tag_token ] = $tag_html; |
|
|
586 |
$html = str_replace( $tag_html, $tag_token, $html, $count ); |
|
|
587 |
} |
|
|
588 |
|
|
|
589 |
$replaced = str_replace( $replace, $search, $html ); |
|
|
590 |
$stripped = str_replace( array( "\r\n", "\n" ), '', $replaced ); |
|
|
591 |
$pre = array_values( $found ); |
|
|
592 |
$tokens = array_keys( $found ); |
|
|
593 |
|
|
|
594 |
return str_replace( $tokens, $pre, $stripped ); |
|
0
|
595 |
} |
|
|
596 |
} |
|
|
597 |
|
|
|
598 |
/** |
|
|
599 |
* Returns the initialized {@link WP_oEmbed} object |
|
|
600 |
* |
|
|
601 |
* @since 2.9.0 |
|
|
602 |
* @access private |
|
|
603 |
* |
|
|
604 |
* @see WP_oEmbed |
|
|
605 |
* |
|
|
606 |
* @return WP_oEmbed object. |
|
|
607 |
*/ |
|
|
608 |
function _wp_oembed_get_object() { |
|
|
609 |
static $wp_oembed; |
|
|
610 |
|
|
|
611 |
if ( is_null($wp_oembed) ) |
|
|
612 |
$wp_oembed = new WP_oEmbed(); |
|
|
613 |
|
|
|
614 |
return $wp_oembed; |
|
|
615 |
} |