--- a/wp/wp-includes/class-oembed.php Tue Oct 22 16:11:46 2019 +0200
+++ b/wp/wp-includes/class-oembed.php Tue Dec 15 13:49:49 2020 +0100
@@ -1,747 +1,15 @@
<?php
/**
- * API for fetching the HTML to embed remote content based on a provided URL
- *
- * Used internally by the WP_Embed class, but is designed to be generic.
+ * API for fetching the HTML to embed remote content based on a provided URL.
*
- * @link https://codex.wordpress.org/oEmbed oEmbed Codex Article
- * @link http://oembed.com/ oEmbed Homepage
+ * This file is deprecated, use 'wp-includes/class-wp-oembed.php' instead.
*
+ * @deprecated 5.3.0
* @package WordPress
* @subpackage oEmbed
*/
-/**
- * Core class used to implement oEmbed functionality.
- *
- * @since 2.9.0
- */
-class WP_oEmbed {
-
- /**
- * A list of oEmbed providers.
- *
- * @since 2.9.0
- * @var array
- */
- public $providers = array();
-
- /**
- * A list of an early oEmbed providers.
- *
- * @since 4.0.0
- * @var array
- */
- public static $early_providers = array();
-
- /**
- * A list of private/protected methods, used for backward compatibility.
- *
- * @since 4.2.0
- * @var array
- */
- private $compat_methods = array( '_fetch_with_format', '_parse_json', '_parse_xml', '_parse_xml_body' );
-
- /**
- * Constructor.
- *
- * @since 2.9.0
- */
- public function __construct() {
- $host = urlencode( home_url() );
- $providers = array(
- '#https?://((m|www)\.)?youtube\.com/watch.*#i' => array( 'https://www.youtube.com/oembed', true ),
- '#https?://((m|www)\.)?youtube\.com/playlist.*#i' => array( 'https://www.youtube.com/oembed', true ),
- '#https?://youtu\.be/.*#i' => array( 'https://www.youtube.com/oembed', true ),
- '#https?://(.+\.)?vimeo\.com/.*#i' => array( 'https://vimeo.com/api/oembed.{format}', true ),
- '#https?://(www\.)?dailymotion\.com/.*#i' => array( 'https://www.dailymotion.com/services/oembed', true ),
- '#https?://dai\.ly/.*#i' => array( 'https://www.dailymotion.com/services/oembed', true ),
- '#https?://(www\.)?flickr\.com/.*#i' => array( 'https://www.flickr.com/services/oembed/', true ),
- '#https?://flic\.kr/.*#i' => array( 'https://www.flickr.com/services/oembed/', true ),
- '#https?://(.+\.)?smugmug\.com/.*#i' => array( 'https://api.smugmug.com/services/oembed/', true ),
- '#https?://(www\.)?hulu\.com/watch/.*#i' => array( 'http://www.hulu.com/api/oembed.{format}', true ),
- '#https?://(www\.)?scribd\.com/(doc|document)/.*#i' => array( 'https://www.scribd.com/services/oembed', true ),
- '#https?://wordpress\.tv/.*#i' => array( 'https://wordpress.tv/oembed/', true ),
- '#https?://(.+\.)?polldaddy\.com/.*#i' => array( 'https://api.crowdsignal.com/oembed', true ),
- '#https?://poll\.fm/.*#i' => array( 'https://api.crowdsignal.com/oembed', true ),
- '#https?://(.+\.)?survey\.fm/.*#i' => array( 'https://api.crowdsignal.com/oembed', true ),
- '#https?://(www\.)?twitter\.com/\w{1,15}/status(es)?/.*#i' => array( 'https://publish.twitter.com/oembed', true ),
- '#https?://(www\.)?twitter\.com/\w{1,15}$#i' => array( 'https://publish.twitter.com/oembed', true ),
- '#https?://(www\.)?twitter\.com/\w{1,15}/likes$#i' => array( 'https://publish.twitter.com/oembed', true ),
- '#https?://(www\.)?twitter\.com/\w{1,15}/lists/.*#i' => array( 'https://publish.twitter.com/oembed', true ),
- '#https?://(www\.)?twitter\.com/\w{1,15}/timelines/.*#i' => array( 'https://publish.twitter.com/oembed', true ),
- '#https?://(www\.)?twitter\.com/i/moments/.*#i' => array( 'https://publish.twitter.com/oembed', true ),
- '#https?://(www\.)?soundcloud\.com/.*#i' => array( 'https://soundcloud.com/oembed', true ),
- '#https?://(.+?\.)?slideshare\.net/.*#i' => array( 'https://www.slideshare.net/api/oembed/2', true ),
- '#https?://(www\.)?instagr(\.am|am\.com)/(p|tv)/.*#i' => array( 'https://api.instagram.com/oembed', true ),
- '#https?://(open|play)\.spotify\.com/.*#i' => array( 'https://embed.spotify.com/oembed/', true ),
- '#https?://(.+\.)?imgur\.com/.*#i' => array( 'https://api.imgur.com/oembed', true ),
- '#https?://(www\.)?meetu(\.ps|p\.com)/.*#i' => array( 'https://api.meetup.com/oembed', true ),
- '#https?://(www\.)?issuu\.com/.+/docs/.+#i' => array( 'https://issuu.com/oembed_wp', true ),
- '#https?://(www\.)?collegehumor\.com/video/.*#i' => array( 'https://www.collegehumor.com/oembed.{format}', true ),
- '#https?://(www\.)?mixcloud\.com/.*#i' => array( 'https://www.mixcloud.com/oembed', true ),
- '#https?://(www\.|embed\.)?ted\.com/talks/.*#i' => array( 'https://www.ted.com/services/v1/oembed.{format}', true ),
- '#https?://(www\.)?(animoto|video214)\.com/play/.*#i' => array( 'https://animoto.com/oembeds/create', true ),
- '#https?://(.+)\.tumblr\.com/post/.*#i' => array( 'https://www.tumblr.com/oembed/1.0', true ),
- '#https?://(www\.)?kickstarter\.com/projects/.*#i' => array( 'https://www.kickstarter.com/services/oembed', true ),
- '#https?://kck\.st/.*#i' => array( 'https://www.kickstarter.com/services/oembed', true ),
- '#https?://cloudup\.com/.*#i' => array( 'https://cloudup.com/oembed', true ),
- '#https?://(www\.)?reverbnation\.com/.*#i' => array( 'https://www.reverbnation.com/oembed', true ),
- '#https?://videopress\.com/v/.*#' => array( 'https://public-api.wordpress.com/oembed/?for=' . $host, true ),
- '#https?://(www\.)?reddit\.com/r/[^/]+/comments/.*#i' => array( 'https://www.reddit.com/oembed', true ),
- '#https?://(www\.)?speakerdeck\.com/.*#i' => array( 'https://speakerdeck.com/oembed.{format}', true ),
- '#https?://www\.facebook\.com/.*/posts/.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ),
- '#https?://www\.facebook\.com/.*/activity/.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ),
- '#https?://www\.facebook\.com/.*/photos/.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ),
- '#https?://www\.facebook\.com/photo(s/|\.php).*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ),
- '#https?://www\.facebook\.com/permalink\.php.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ),
- '#https?://www\.facebook\.com/media/.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ),
- '#https?://www\.facebook\.com/questions/.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ),
- '#https?://www\.facebook\.com/notes/.*#i' => array( 'https://www.facebook.com/plugins/post/oembed.json/', true ),
- '#https?://www\.facebook\.com/.*/videos/.*#i' => array( 'https://www.facebook.com/plugins/video/oembed.json/', true ),
- '#https?://www\.facebook\.com/video\.php.*#i' => array( 'https://www.facebook.com/plugins/video/oembed.json/', true ),
- '#https?://(www\.)?screencast\.com/.*#i' => array( 'https://api.screencast.com/external/oembed', true ),
- '#https?://([a-z0-9-]+\.)?amazon\.(com|com\.mx|com\.br|ca)/.*#i' => array( 'https://read.amazon.com/kp/api/oembed', true ),
- '#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 ),
- '#https?://([a-z0-9-]+\.)?amazon\.(co\.jp|com\.au)/.*#i' => array( 'https://read.amazon.com.au/kp/api/oembed', true ),
- '#https?://([a-z0-9-]+\.)?amazon\.cn/.*#i' => array( 'https://read.amazon.cn/kp/api/oembed', true ),
- '#https?://(www\.)?a\.co/.*#i' => array( 'https://read.amazon.com/kp/api/oembed', true ),
- '#https?://(www\.)?amzn\.to/.*#i' => array( 'https://read.amazon.com/kp/api/oembed', true ),
- '#https?://(www\.)?amzn\.eu/.*#i' => array( 'https://read.amazon.co.uk/kp/api/oembed', true ),
- '#https?://(www\.)?amzn\.in/.*#i' => array( 'https://read.amazon.in/kp/api/oembed', true ),
- '#https?://(www\.)?amzn\.asia/.*#i' => array( 'https://read.amazon.com.au/kp/api/oembed', true ),
- '#https?://(www\.)?z\.cn/.*#i' => array( 'https://read.amazon.cn/kp/api/oembed', true ),
- '#https?://www\.someecards\.com/.+-cards/.+#i' => array( 'https://www.someecards.com/v2/oembed/', true ),
- '#https?://www\.someecards\.com/usercards/viewcard/.+#i' => array( 'https://www.someecards.com/v2/oembed/', true ),
- '#https?://some\.ly\/.+#i' => array( 'https://www.someecards.com/v2/oembed/', true ),
- );
-
- if ( ! empty( self::$early_providers['add'] ) ) {
- foreach ( self::$early_providers['add'] as $format => $data ) {
- $providers[ $format ] = $data;
- }
- }
-
- if ( ! empty( self::$early_providers['remove'] ) ) {
- foreach ( self::$early_providers['remove'] as $format ) {
- unset( $providers[ $format ] );
- }
- }
-
- self::$early_providers = array();
-
- /**
- * Filters the list of whitelisted oEmbed providers.
- *
- * Since WordPress 4.4, oEmbed discovery is enabled for all users and allows embedding of sanitized
- * iframes. The providers in this list are whitelisted, meaning they are trusted and allowed to
- * embed any content, such as iframes, videos, JavaScript, and arbitrary HTML.
- *
- * Supported providers:
- *
- * | Provider | Flavor | Supports HTTPS | Since |
- * | ------------ | ----------------------------------------- | :------------: | ------- |
- * | Dailymotion | dailymotion.com | Yes | 2.9.0 |
- * | Flickr | flickr.com | Yes | 2.9.0 |
- * | Hulu | hulu.com | Yes | 2.9.0 |
- * | Scribd | scribd.com | Yes | 2.9.0 |
- * | Vimeo | vimeo.com | Yes | 2.9.0 |
- * | WordPress.tv | wordpress.tv | Yes | 2.9.0 |
- * | YouTube | youtube.com/watch | Yes | 2.9.0 |
- * | Crowdsignal | polldaddy.com | Yes | 3.0.0 |
- * | SmugMug | smugmug.com | Yes | 3.0.0 |
- * | YouTube | youtu.be | Yes | 3.0.0 |
- * | Twitter | twitter.com | Yes | 3.4.0 |
- * | Instagram | instagram.com | Yes | 3.5.0 |
- * | Instagram | instagr.am | Yes | 3.5.0 |
- * | Slideshare | slideshare.net | Yes | 3.5.0 |
- * | SoundCloud | soundcloud.com | Yes | 3.5.0 |
- * | Dailymotion | dai.ly | Yes | 3.6.0 |
- * | Flickr | flic.kr | Yes | 3.6.0 |
- * | Spotify | spotify.com | Yes | 3.6.0 |
- * | Imgur | imgur.com | Yes | 3.9.0 |
- * | Meetup.com | meetup.com | Yes | 3.9.0 |
- * | Meetup.com | meetu.ps | Yes | 3.9.0 |
- * | Animoto | animoto.com | Yes | 4.0.0 |
- * | Animoto | video214.com | Yes | 4.0.0 |
- * | CollegeHumor | collegehumor.com | Yes | 4.0.0 |
- * | Issuu | issuu.com | Yes | 4.0.0 |
- * | Mixcloud | mixcloud.com | Yes | 4.0.0 |
- * | Crowdsignal | poll.fm | Yes | 4.0.0 |
- * | TED | ted.com | Yes | 4.0.0 |
- * | YouTube | youtube.com/playlist | Yes | 4.0.0 |
- * | Tumblr | tumblr.com | Yes | 4.2.0 |
- * | Kickstarter | kickstarter.com | Yes | 4.2.0 |
- * | Kickstarter | kck.st | Yes | 4.2.0 |
- * | Cloudup | cloudup.com | Yes | 4.3.0 |
- * | ReverbNation | reverbnation.com | Yes | 4.4.0 |
- * | VideoPress | videopress.com | Yes | 4.4.0 |
- * | Reddit | reddit.com | Yes | 4.4.0 |
- * | Speaker Deck | speakerdeck.com | Yes | 4.4.0 |
- * | Twitter | twitter.com/timelines | Yes | 4.5.0 |
- * | Twitter | twitter.com/moments | Yes | 4.5.0 |
- * | Facebook | facebook.com | Yes | 4.7.0 |
- * | Twitter | twitter.com/user | Yes | 4.7.0 |
- * | Twitter | twitter.com/likes | Yes | 4.7.0 |
- * | Twitter | twitter.com/lists | Yes | 4.7.0 |
- * | Screencast | screencast.com | Yes | 4.8.0 |
- * | Amazon | amazon.com (com.mx, com.br, ca) | Yes | 4.9.0 |
- * | Amazon | amazon.de (fr, it, es, in, nl, ru, co.uk) | Yes | 4.9.0 |
- * | Amazon | amazon.co.jp (com.au) | Yes | 4.9.0 |
- * | Amazon | amazon.cn | Yes | 4.9.0 |
- * | Amazon | a.co | Yes | 4.9.0 |
- * | Amazon | amzn.to (eu, in, asia) | Yes | 4.9.0 |
- * | Amazon | z.cn | Yes | 4.9.0 |
- * | Someecards | someecards.com | Yes | 4.9.0 |
- * | Someecards | some.ly | Yes | 4.9.0 |
- * | Crowdsignal | survey.fm | Yes | 5.1.0 |
- * | Instagram TV | instagram.com | Yes | 5.1.0 |
- * | Instagram TV | instagr.am | Yes | 5.1.0 |
- *
- * No longer supported providers:
- *
- * | Provider | Flavor | Supports HTTPS | Since | Removed |
- * | ------------ | -------------------- | :------------: | --------- | --------- |
- * | Qik | qik.com | Yes | 2.9.0 | 3.9.0 |
- * | Viddler | viddler.com | Yes | 2.9.0 | 4.0.0 |
- * | Revision3 | revision3.com | No | 2.9.0 | 4.2.0 |
- * | Blip | blip.tv | No | 2.9.0 | 4.4.0 |
- * | Rdio | rdio.com | Yes | 3.6.0 | 4.4.1 |
- * | Rdio | rd.io | Yes | 3.6.0 | 4.4.1 |
- * | Vine | vine.co | Yes | 4.1.0 | 4.9.0 |
- * | Photobucket | photobucket.com | No | 2.9.0 | 5.1.0 |
- * | Funny or Die | funnyordie.com | Yes | 3.0.0 | 5.1.0 |
- *
- * @see wp_oembed_add_provider()
- *
- * @since 2.9.0
- *
- * @param array[] $providers An array of arrays containing data about popular oEmbed providers.
- */
- $this->providers = apply_filters( 'oembed_providers', $providers );
-
- // Fix any embeds that contain new lines in the middle of the HTML which breaks wpautop().
- add_filter( 'oembed_dataparse', array( $this, '_strip_newlines' ), 10, 3 );
- }
-
- /**
- * Exposes private/protected methods for backward compatibility.
- *
- * @since 4.0.0
- *
- * @param string $name Method to call.
- * @param array $arguments Arguments to pass when calling.
- * @return mixed|bool Return value of the callback, false otherwise.
- */
- public function __call( $name, $arguments ) {
- if ( in_array( $name, $this->compat_methods ) ) {
- return call_user_func_array( array( $this, $name ), $arguments );
- }
- return false;
- }
-
- /**
- * Takes a URL and returns the corresponding oEmbed provider's URL, if there is one.
- *
- * @since 4.0.0
- *
- * @see WP_oEmbed::discover()
- *
- * @param string $url The URL to the content.
- * @param string|array $args Optional provider arguments.
- * @return false|string False on failure, otherwise the oEmbed provider URL.
- */
- public function get_provider( $url, $args = '' ) {
- $args = wp_parse_args( $args );
-
- $provider = false;
-
- if ( ! isset( $args['discover'] ) ) {
- $args['discover'] = true;
- }
-
- foreach ( $this->providers as $matchmask => $data ) {
- list( $providerurl, $regex ) = $data;
-
- // Turn the asterisk-type provider URLs into regex
- if ( ! $regex ) {
- $matchmask = '#' . str_replace( '___wildcard___', '(.+)', preg_quote( str_replace( '*', '___wildcard___', $matchmask ), '#' ) ) . '#i';
- $matchmask = preg_replace( '|^#http\\\://|', '#https?\://', $matchmask );
- }
-
- if ( preg_match( $matchmask, $url ) ) {
- $provider = str_replace( '{format}', 'json', $providerurl ); // JSON is easier to deal with than XML
- break;
- }
- }
-
- if ( ! $provider && $args['discover'] ) {
- $provider = $this->discover( $url );
- }
-
- return $provider;
- }
-
- /**
- * Adds an oEmbed provider.
- *
- * The provider is added just-in-time when wp_oembed_add_provider() is called before
- * the {@see 'plugins_loaded'} hook.
- *
- * The just-in-time addition is for the benefit of the {@see 'oembed_providers'} filter.
- *
- * @since 4.0.0
- *
- * @see wp_oembed_add_provider()
- *
- * @param string $format Format of URL that this provider can handle. You can use
- * asterisks as wildcards.
- * @param string $provider The URL to the oEmbed provider..
- * @param bool $regex Optional. Whether the $format parameter is in a regex format.
- * Default false.
- */
- public static function _add_provider_early( $format, $provider, $regex = false ) {
- if ( empty( self::$early_providers['add'] ) ) {
- self::$early_providers['add'] = array();
- }
-
- self::$early_providers['add'][ $format ] = array( $provider, $regex );
- }
-
- /**
- * Removes an oEmbed provider.
- *
- * The provider is removed just-in-time when wp_oembed_remove_provider() is called before
- * the {@see 'plugins_loaded'} hook.
- *
- * The just-in-time removal is for the benefit of the {@see 'oembed_providers'} filter.
- *
- * @since 4.0.0
- *
- * @see wp_oembed_remove_provider()
- *
- * @param string $format The format of URL that this provider can handle. You can use
- * asterisks as wildcards.
- */
- public static function _remove_provider_early( $format ) {
- if ( empty( self::$early_providers['remove'] ) ) {
- self::$early_providers['remove'] = array();
- }
-
- self::$early_providers['remove'][] = $format;
- }
-
- /**
- * Takes a URL and attempts to return the oEmbed data.
- *
- * @see WP_oEmbed::fetch()
- *
- * @since 4.8.0
- *
- * @param string $url The URL to the content that should be attempted to be embedded.
- * @param array|string $args Optional. Arguments, usually passed from a shortcode. Default empty.
- * @return false|object False on failure, otherwise the result in the form of an object.
- */
- public function get_data( $url, $args = '' ) {
- $args = wp_parse_args( $args );
-
- $provider = $this->get_provider( $url, $args );
-
- if ( ! $provider ) {
- return false;
- }
-
- $data = $this->fetch( $provider, $url, $args );
-
- if ( false === $data ) {
- return false;
- }
-
- return $data;
- }
+_deprecated_file( basename( __FILE__ ), '5.3.0', 'wp-includes/class-wp-oembed.php' );
- /**
- * The do-it-all function that takes a URL and attempts to return the HTML.
- *
- * @see WP_oEmbed::fetch()
- * @see WP_oEmbed::data2html()
- *
- * @since 2.9.0
- *
- * @param string $url The URL to the content that should be attempted to be embedded.
- * @param array|string $args Optional. Arguments, usually passed from a shortcode. Default empty.
- * @return false|string False on failure, otherwise the UNSANITIZED (and potentially unsafe) HTML that should be used to embed.
- */
- public function get_html( $url, $args = '' ) {
- /**
- * Filters the oEmbed result before any HTTP requests are made.
- *
- * This allows one to short-circuit the default logic, perhaps by
- * replacing it with a routine that is more optimal for your setup.
- *
- * Passing a non-null value to the filter will effectively short-circuit retrieval,
- * returning the passed value instead.
- *
- * @since 4.5.3
- *
- * @param null|string $result The UNSANITIZED (and potentially unsafe) HTML that should be used to embed. Default null.
- * @param string $url The URL to the content that should be attempted to be embedded.
- * @param array $args Optional. Arguments, usually passed from a shortcode. Default empty.
- */
- $pre = apply_filters( 'pre_oembed_result', null, $url, $args );
-
- if ( null !== $pre ) {
- return $pre;
- }
-
- $data = $this->get_data( $url, $args );
-
- if ( false === $data ) {
- return false;
- }
-
- /**
- * Filters the HTML returned by the oEmbed provider.
- *
- * @since 2.9.0
- *
- * @param string|false $data The returned oEmbed HTML (false if unsafe).
- * @param string $url URL of the content to be embedded.
- * @param array $args Optional arguments, usually passed from a shortcode.
- */
- return apply_filters( 'oembed_result', $this->data2html( $data, $url ), $url, $args );
- }
-
- /**
- * Attempts to discover link tags at the given URL for an oEmbed provider.
- *
- * @since 2.9.0
- *
- * @param string $url The URL that should be inspected for discovery `<link>` tags.
- * @return false|string False on failure, otherwise the oEmbed provider URL.
- */
- public function discover( $url ) {
- $providers = array();
- $args = array(
- 'limit_response_size' => 153600, // 150 KB
- );
-
- /**
- * Filters oEmbed remote get arguments.
- *
- * @since 4.0.0
- *
- * @see WP_Http::request()
- *
- * @param array $args oEmbed remote get arguments.
- * @param string $url URL to be inspected.
- */
- $args = apply_filters( 'oembed_remote_get_args', $args, $url );
-
- // Fetch URL content
- $request = wp_safe_remote_get( $url, $args );
- if ( $html = wp_remote_retrieve_body( $request ) ) {
-
- /**
- * Filters the link types that contain oEmbed provider URLs.
- *
- * @since 2.9.0
- *
- * @param string[] $format Array of oEmbed link types. Accepts 'application/json+oembed',
- * 'text/xml+oembed', and 'application/xml+oembed' (incorrect,
- * used by at least Vimeo).
- */
- $linktypes = apply_filters(
- 'oembed_linktypes',
- array(
- 'application/json+oembed' => 'json',
- 'text/xml+oembed' => 'xml',
- 'application/xml+oembed' => 'xml',
- )
- );
-
- // Strip <body>
- if ( $html_head_end = stripos( $html, '</head>' ) ) {
- $html = substr( $html, 0, $html_head_end );
- }
-
- // Do a quick check
- $tagfound = false;
- foreach ( $linktypes as $linktype => $format ) {
- if ( stripos( $html, $linktype ) ) {
- $tagfound = true;
- break;
- }
- }
-
- if ( $tagfound && preg_match_all( '#<link([^<>]+)/?>#iU', $html, $links ) ) {
- foreach ( $links[1] as $link ) {
- $atts = shortcode_parse_atts( $link );
-
- if ( ! empty( $atts['type'] ) && ! empty( $linktypes[ $atts['type'] ] ) && ! empty( $atts['href'] ) ) {
- $providers[ $linktypes[ $atts['type'] ] ] = htmlspecialchars_decode( $atts['href'] );
-
- // Stop here if it's JSON (that's all we need)
- if ( 'json' == $linktypes[ $atts['type'] ] ) {
- break;
- }
- }
- }
- }
- }
-
- // JSON is preferred to XML
- if ( ! empty( $providers['json'] ) ) {
- return $providers['json'];
- } elseif ( ! empty( $providers['xml'] ) ) {
- return $providers['xml'];
- } else {
- return false;
- }
- }
-
- /**
- * Connects to a oEmbed provider and returns the result.
- *
- * @since 2.9.0
- *
- * @param string $provider The URL to the oEmbed provider.
- * @param string $url The URL to the content that is desired to be embedded.
- * @param array|string $args Optional. Arguments, usually passed from a shortcode. Default empty.
- * @return false|object False on failure, otherwise the result in the form of an object.
- */
- public function fetch( $provider, $url, $args = '' ) {
- $args = wp_parse_args( $args, wp_embed_defaults( $url ) );
-
- $provider = add_query_arg( 'maxwidth', (int) $args['width'], $provider );
- $provider = add_query_arg( 'maxheight', (int) $args['height'], $provider );
- $provider = add_query_arg( 'url', urlencode( $url ), $provider );
- $provider = add_query_arg( 'dnt', 1, $provider );
-
- /**
- * Filters the oEmbed URL to be fetched.
- *
- * @since 2.9.0
- * @since 4.9.0 The `dnt` (Do Not Track) query parameter was added to all oEmbed provider URLs.
- *
- * @param string $provider URL of the oEmbed provider.
- * @param string $url URL of the content to be embedded.
- * @param array $args Optional arguments, usually passed from a shortcode.
- */
- $provider = apply_filters( 'oembed_fetch_url', $provider, $url, $args );
-
- foreach ( array( 'json', 'xml' ) as $format ) {
- $result = $this->_fetch_with_format( $provider, $format );
- if ( is_wp_error( $result ) && 'not-implemented' == $result->get_error_code() ) {
- continue;
- }
- return ( $result && ! is_wp_error( $result ) ) ? $result : false;
- }
- return false;
- }
-
- /**
- * Fetches result from an oEmbed provider for a specific format and complete provider URL
- *
- * @since 3.0.0
- *
- * @param string $provider_url_with_args URL to the provider with full arguments list (url, maxheight, etc.)
- * @param string $format Format to use
- * @return false|object|WP_Error False on failure, otherwise the result in the form of an object.
- */
- private function _fetch_with_format( $provider_url_with_args, $format ) {
- $provider_url_with_args = add_query_arg( 'format', $format, $provider_url_with_args );
-
- /** This filter is documented in wp-includes/class-oembed.php */
- $args = apply_filters( 'oembed_remote_get_args', array(), $provider_url_with_args );
-
- $response = wp_safe_remote_get( $provider_url_with_args, $args );
- if ( 501 == wp_remote_retrieve_response_code( $response ) ) {
- return new WP_Error( 'not-implemented' );
- }
- if ( ! $body = wp_remote_retrieve_body( $response ) ) {
- return false;
- }
- $parse_method = "_parse_$format";
- return $this->$parse_method( $body );
- }
-
- /**
- * Parses a json response body.
- *
- * @since 3.0.0
- *
- * @param string $response_body
- * @return object|false
- */
- private function _parse_json( $response_body ) {
- $data = json_decode( trim( $response_body ) );
- return ( $data && is_object( $data ) ) ? $data : false;
- }
-
- /**
- * Parses an XML response body.
- *
- * @since 3.0.0
- *
- * @param string $response_body
- * @return object|false
- */
- private function _parse_xml( $response_body ) {
- if ( ! function_exists( 'libxml_disable_entity_loader' ) ) {
- return false;
- }
-
- $loader = libxml_disable_entity_loader( true );
- $errors = libxml_use_internal_errors( true );
-
- $return = $this->_parse_xml_body( $response_body );
-
- libxml_use_internal_errors( $errors );
- libxml_disable_entity_loader( $loader );
-
- return $return;
- }
-
- /**
- * Serves as a helper function for parsing an XML response body.
- *
- * @since 3.6.0
- *
- * @param string $response_body
- * @return stdClass|false
- */
- private function _parse_xml_body( $response_body ) {
- if ( ! function_exists( 'simplexml_import_dom' ) || ! class_exists( 'DOMDocument', false ) ) {
- return false;
- }
-
- $dom = new DOMDocument;
- $success = $dom->loadXML( $response_body );
- if ( ! $success ) {
- return false;
- }
-
- if ( isset( $dom->doctype ) ) {
- return false;
- }
-
- foreach ( $dom->childNodes as $child ) {
- if ( XML_DOCUMENT_TYPE_NODE === $child->nodeType ) {
- return false;
- }
- }
-
- $xml = simplexml_import_dom( $dom );
- if ( ! $xml ) {
- return false;
- }
-
- $return = new stdClass;
- foreach ( $xml as $key => $value ) {
- $return->$key = (string) $value;
- }
-
- return $return;
- }
-
- /**
- * Converts a data object from WP_oEmbed::fetch() and returns the HTML.
- *
- * @since 2.9.0
- *
- * @param object $data A data object result from an oEmbed provider.
- * @param string $url The URL to the content that is desired to be embedded.
- * @return false|string False on error, otherwise the HTML needed to embed.
- */
- public function data2html( $data, $url ) {
- if ( ! is_object( $data ) || empty( $data->type ) ) {
- return false;
- }
-
- $return = false;
-
- switch ( $data->type ) {
- case 'photo':
- if ( empty( $data->url ) || empty( $data->width ) || empty( $data->height ) ) {
- break;
- }
- if ( ! is_string( $data->url ) || ! is_numeric( $data->width ) || ! is_numeric( $data->height ) ) {
- break;
- }
-
- $title = ! empty( $data->title ) && is_string( $data->title ) ? $data->title : '';
- $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>';
- break;
-
- case 'video':
- case 'rich':
- if ( ! empty( $data->html ) && is_string( $data->html ) ) {
- $return = $data->html;
- }
- break;
-
- case 'link':
- if ( ! empty( $data->title ) && is_string( $data->title ) ) {
- $return = '<a href="' . esc_url( $url ) . '">' . esc_html( $data->title ) . '</a>';
- }
- break;
-
- default:
- $return = false;
- }
-
- /**
- * Filters the returned oEmbed HTML.
- *
- * Use this filter to add support for custom data types, or to filter the result.
- *
- * @since 2.9.0
- *
- * @param string $return The returned oEmbed HTML.
- * @param object $data A data object result from an oEmbed provider.
- * @param string $url The URL of the content to be embedded.
- */
- return apply_filters( 'oembed_dataparse', $return, $data, $url );
- }
-
- /**
- * Strips any new lines from the HTML.
- *
- * @since 2.9.0 as strip_scribd_newlines()
- * @since 3.0.0
- *
- * @param string $html Existing HTML.
- * @param object $data Data object from WP_oEmbed::data2html()
- * @param string $url The original URL passed to oEmbed.
- * @return string Possibly modified $html
- */
- public function _strip_newlines( $html, $data, $url ) {
- if ( false === strpos( $html, "\n" ) ) {
- return $html;
- }
-
- $count = 1;
- $found = array();
- $token = '__PRE__';
- $search = array( "\t", "\n", "\r", ' ' );
- $replace = array( '__TAB__', '__NL__', '__CR__', '__SPACE__' );
- $tokenized = str_replace( $search, $replace, $html );
-
- preg_match_all( '#(<pre[^>]*>.+?</pre>)#i', $tokenized, $matches, PREG_SET_ORDER );
- foreach ( $matches as $i => $match ) {
- $tag_html = str_replace( $replace, $search, $match[0] );
- $tag_token = $token . $i;
-
- $found[ $tag_token ] = $tag_html;
- $html = str_replace( $tag_html, $tag_token, $html, $count );
- }
-
- $replaced = str_replace( $replace, $search, $html );
- $stripped = str_replace( array( "\r\n", "\n" ), '', $replaced );
- $pre = array_values( $found );
- $tokens = array_keys( $found );
-
- return str_replace( $tokens, $pre, $stripped );
- }
-}
+/** WP_oEmbed class */
+require_once ABSPATH . 'wp-includes/class-wp-oembed.php';