2019-07-19 00:32:57 -04:00
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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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*
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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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2019-07-25 18:45:57 -04:00
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* @link https://wordpress.org/support/article/embeds/
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* @link http://oembed.com/
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2019-07-19 00:32:57 -04:00
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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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*
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* @since 2.9.0
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*/
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Code Modernization: Add `AllowDynamicProperties` attribute to all (parent) classes.
Dynamic (non-explicitly declared) properties are deprecated as of PHP 8.2 and are expected to become a fatal error in PHP 9.0.
There are a number of ways to mitigate this:
* If it is an accidental typo for a declared property: fix the typo.
* For known properties: declare them on the class.
* For unknown properties: add the magic `__get()`, `__set()`, et al. methods to the class or let the class extend `stdClass` which has highly optimized versions of these magic methods built in.
* For unknown ''use'' of dynamic properties, the `#[AllowDynamicProperties]` attribute can be added to the class. The attribute will automatically be inherited by child classes.
Trac ticket #56034 is open to investigate and handle the third and fourth type of situations, however it has become clear this will need more time and will not be ready in time for WP 6.1.
To reduce “noise” in the meantime, both in the error logs of WP users moving onto PHP 8.2, in the test run logs of WP itself, in test runs of plugins and themes, as well as to prevent duplicate tickets from being opened for the same issue, this commit adds the `#[AllowDynamicProperties]` attribute to all “parent” classes in WP.
The logic used for this commit is as follows:
* If a class already has the attribute: no action needed.
* If a class does not `extend`: add the attribute.
* If a class does `extend`:
- If it extends `stdClass`: no action needed (as `stdClass` supports dynamic properties).
- If it extends a PHP native class: add the attribute.
- If it extends a class from one of WP's external dependencies: add the attribute.
* In all other cases: no action — the attribute should not be needed as child classes inherit from the parent.
Whether or not a class contains magic methods has not been taken into account, as a review of the currently existing magic methods has shown that those are generally not sturdy enough and often even set dynamic properties (which they should not). See the [https://www.youtube.com/watch?v=vDZWepDQQVE live stream from August 16, 2022] for more details.
This commit only affects classes in the `src` directory of WordPress core.
* Tests should not get this attribute, but should be fixed to not use dynamic properties instead. Patches for this are already being committed under ticket #56033.
* While a number bundled themes (2014, 2019, 2020, 2021) contain classes, they are not a part of this commit and may be updated separately.
Reference: [https://wiki.php.net/rfc/deprecate_dynamic_properties PHP RFC: Deprecate dynamic properties].
Follow-up to [53922].
Props jrf, hellofromTonya, markjaquith, peterwilsoncc, costdev, knutsp, aristath.
See #56513, #56034.
Built from https://develop.svn.wordpress.org/trunk@54133
git-svn-id: http://core.svn.wordpress.org/trunk@53692 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2022-09-12 11:47:14 -04:00
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#[AllowDynamicProperties]
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2019-07-19 00:32:57 -04:00
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class WP_oEmbed {
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/**
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* A list of oEmbed providers.
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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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2022-04-08 02:31:02 -04:00
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'#https?://((m|www)\.)?youtube\.com/shorts/*#i' => array( 'https://www.youtube.com/oembed', true ),
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2019-07-19 00:32:57 -04:00
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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\.)?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?://(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\.)?issuu\.com/.+/docs/.+#i' => array( 'https://issuu.com/oembed_wp', 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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2022-10-19 20:00:16 -04:00
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'#https?://(.+)\.tumblr\.com/.*#i' => array( 'https://www.tumblr.com/oembed/1.0', true ),
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2019-07-19 00:32:57 -04:00
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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\.)?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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2020-02-08 23:55:06 -05:00
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'#https?://(www\.)?tiktok\.com/.*/video/.*#i' => array( 'https://www.tiktok.com/oembed', true ),
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2021-09-16 23:13:56 -04:00
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'#https?://([a-z]{2}|www)\.pinterest\.com(\.(au|mx))?/.*#i' => array( 'https://www.pinterest.com/oembed.json', true ),
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2021-10-15 01:04:56 -04:00
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'#https?://(www\.)?wolframcloud\.com/obj/.+#i' => array( 'https://www.wolframcloud.com/oembed', true ),
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2022-07-21 00:25:13 -04:00
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'#https?://pca\.st/.+#i' => array( 'https://pca.st/oembed.json', true ),
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2019-07-19 00:32:57 -04:00
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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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General: Remove “whitelist” and “blacklist” in favor of more clear and inclusive language.
“The WordPress open source community cares about diversity. We strive to maintain a welcoming environment where everyone can feel included.”
With this commit, all occurrences of “whitelist” and “blacklist” (with the single exception of the `$new_whitelist_options` global variable) are removed. A new ticket has been opened to explore renaming the `$new_whitelist_options` variable (#50434).
Changing to more specific names or rewording sentences containing these terms not only makes the code more inclusive, but also helps provide clarity. These terms are often ambiguous. What is being blocked or allowed is not always immediately clear. This can make it more difficult for non-native English speakers to read through the codebase.
Words matter. If one contributor feels more welcome because these terms are removed, this was worth the effort.
Props strangerstudios, jorbin, desrosj, joemcgill, timothyblynjacobs, ocean90, ayeshrajans, davidbaumwald, earnjam.
See #48900, #50434.
Fixes #50413.
Built from https://develop.svn.wordpress.org/trunk@48121
git-svn-id: http://core.svn.wordpress.org/trunk@47890 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2020-06-22 13:26:13 -04:00
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* Filters the list of sanctioned oEmbed providers.
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2019-07-19 00:32:57 -04:00
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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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General: Remove “whitelist” and “blacklist” in favor of more clear and inclusive language.
“The WordPress open source community cares about diversity. We strive to maintain a welcoming environment where everyone can feel included.”
With this commit, all occurrences of “whitelist” and “blacklist” (with the single exception of the `$new_whitelist_options` global variable) are removed. A new ticket has been opened to explore renaming the `$new_whitelist_options` variable (#50434).
Changing to more specific names or rewording sentences containing these terms not only makes the code more inclusive, but also helps provide clarity. These terms are often ambiguous. What is being blocked or allowed is not always immediately clear. This can make it more difficult for non-native English speakers to read through the codebase.
Words matter. If one contributor feels more welcome because these terms are removed, this was worth the effort.
Props strangerstudios, jorbin, desrosj, joemcgill, timothyblynjacobs, ocean90, ayeshrajans, davidbaumwald, earnjam.
See #48900, #50434.
Fixes #50413.
Built from https://develop.svn.wordpress.org/trunk@48121
git-svn-id: http://core.svn.wordpress.org/trunk@47890 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2020-06-22 13:26:13 -04:00
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* iframes. The providers in this list are sanctioned, meaning they are trusted and allowed to
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2019-07-19 00:32:57 -04:00
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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 | Since |
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* | ------------ | ----------------------------------------- | ------- |
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* | Dailymotion | dailymotion.com | 2.9.0 |
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* | Flickr | flickr.com | 2.9.0 |
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* | Scribd | scribd.com | 2.9.0 |
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* | Vimeo | vimeo.com | 2.9.0 |
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* | WordPress.tv | wordpress.tv | 2.9.0 |
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* | YouTube | youtube.com/watch | 2.9.0 |
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* | Crowdsignal | polldaddy.com | 3.0.0 |
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* | SmugMug | smugmug.com | 3.0.0 |
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* | YouTube | youtu.be | 3.0.0 |
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* | Twitter | twitter.com | 3.4.0 |
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* | Slideshare | slideshare.net | 3.5.0 |
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* | SoundCloud | soundcloud.com | 3.5.0 |
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* | Dailymotion | dai.ly | 3.6.0 |
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* | Flickr | flic.kr | 3.6.0 |
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* | Spotify | spotify.com | 3.6.0 |
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* | Imgur | imgur.com | 3.9.0 |
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* | Animoto | animoto.com | 4.0.0 |
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* | Animoto | video214.com | 4.0.0 |
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* | Issuu | issuu.com | 4.0.0 |
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* | Mixcloud | mixcloud.com | 4.0.0 |
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* | Crowdsignal | poll.fm | 4.0.0 |
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* | TED | ted.com | 4.0.0 |
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* | YouTube | youtube.com/playlist | 4.0.0 |
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* | Tumblr | tumblr.com | 4.2.0 |
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* | Kickstarter | kickstarter.com | 4.2.0 |
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* | Kickstarter | kck.st | 4.2.0 |
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* | Cloudup | cloudup.com | 4.3.0 |
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* | ReverbNation | reverbnation.com | 4.4.0 |
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* | VideoPress | videopress.com | 4.4.0 |
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* | Reddit | reddit.com | 4.4.0 |
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* | Speaker Deck | speakerdeck.com | 4.4.0 |
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* | Twitter | twitter.com/timelines | 4.5.0 |
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* | Twitter | twitter.com/moments | 4.5.0 |
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* | Twitter | twitter.com/user | 4.7.0 |
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* | Twitter | twitter.com/likes | 4.7.0 |
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* | Twitter | twitter.com/lists | 4.7.0 |
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* | Screencast | screencast.com | 4.8.0 |
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* | Amazon | amazon.com (com.mx, com.br, ca) | 4.9.0 |
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* | Amazon | amazon.de (fr, it, es, in, nl, ru, co.uk) | 4.9.0 |
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* | Amazon | amazon.co.jp (com.au) | 4.9.0 |
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* | Amazon | amazon.cn | 4.9.0 |
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* | Amazon | a.co | 4.9.0 |
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* | Amazon | amzn.to (eu, in, asia) | 4.9.0 |
|
|
|
|
|
* | Amazon | z.cn | 4.9.0 |
|
|
|
|
|
* | Someecards | someecards.com | 4.9.0 |
|
|
|
|
|
* | Someecards | some.ly | 4.9.0 |
|
|
|
|
|
* | Crowdsignal | survey.fm | 5.1.0 |
|
2020-02-08 23:55:06 -05:00
|
|
|
* | TikTok | tiktok.com | 5.4.0 |
|
2021-09-16 23:13:56 -04:00
|
|
|
* | Pinterest | pinterest.com | 5.9.0 |
|
2021-10-15 01:04:56 -04:00
|
|
|
* | WolframCloud | wolframcloud.com | 5.9.0 |
|
2022-07-21 00:25:13 -04:00
|
|
|
* | Pocket Casts | pocketcasts.com | 6.1.0 |
|
2019-07-19 00:32:57 -04:00
|
|
|
*
|
|
|
|
|
* No longer supported providers:
|
|
|
|
|
*
|
|
|
|
|
* | Provider | Flavor | Since | Removed |
|
|
|
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|
* | ------------ | -------------------- | --------- | --------- |
|
|
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|
* | Qik | qik.com | 2.9.0 | 3.9.0 |
|
|
|
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|
* | Viddler | viddler.com | 2.9.0 | 4.0.0 |
|
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|
* | Revision3 | revision3.com | 2.9.0 | 4.2.0 |
|
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* | Blip | blip.tv | 2.9.0 | 4.4.0 |
|
|
|
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|
* | Rdio | rdio.com | 3.6.0 | 4.4.1 |
|
|
|
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* | Rdio | rd.io | 3.6.0 | 4.4.1 |
|
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* | Vine | vine.co | 4.1.0 | 4.9.0 |
|
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|
|
|
* | Photobucket | photobucket.com | 2.9.0 | 5.1.0 |
|
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* | Funny or Die | funnyordie.com | 3.0.0 | 5.1.0 |
|
2019-11-23 05:15:03 -05:00
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* | CollegeHumor | collegehumor.com | 4.0.0 | 5.3.1 |
|
2020-07-20 09:14:04 -04:00
|
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|
* | Hulu | hulu.com | 2.9.0 | 5.5.0 |
|
Embeds: Remove Facebook and Instagram as an oEmbed Source
Facebook has depracated all non-authenticated endpoints for Facebook and Instagram.
See: https://developers.facebook.com/docs/plugins/oembed-legacy
See also: https://make.wordpress.org/core/2020/09/22/facebook-and-instagram-embeds-to-be-deprecated-october-24th/
With this change, endpoints are being removed. If a site is dependent on this feature, they need to pass either an app or client token. There are a few plugins that add this functionality.
Fixes #50861.
Props johnbillion, joyously, mkaz, dimadin, ayeshrajans, davisshaver, paaljoachim, Clorith, bridgetwillard, jb510, sippis, Clorith, TimothyBlynJacobs, desrosj, smub, audrasjb, whyisjake.
Built from https://develop.svn.wordpress.org/trunk@49359
git-svn-id: http://core.svn.wordpress.org/trunk@49119 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2020-10-28 15:11:06 -04:00
|
|
|
* | Instagram | instagram.com | 3.5.0 | 5.5.2 |
|
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* | Instagram | instagr.am | 3.5.0 | 5.5.2 |
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* | Instagram TV | instagram.com | 5.1.0 | 5.5.2 |
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* | Instagram TV | instagr.am | 5.1.0 | 5.5.2 |
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* | Facebook | facebook.com | 4.7.0 | 5.5.2 |
|
2022-07-04 14:15:15 -04:00
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* | Meetup.com | meetup.com | 3.9.0 | 6.0.1 |
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* | Meetup.com | meetu.ps | 3.9.0 | 6.0.1 |
|
2019-07-19 00:32:57 -04:00
|
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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 arrays containing data about 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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* Exposes private/protected methods for backward compatibility.
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*
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* @since 4.0.0
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*
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2020-07-23 16:01:04 -04:00
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* @param string $name Method to call.
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* @param array $arguments Arguments to pass when calling.
|
2021-01-03 17:04:04 -05:00
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* @return mixed|false Return value of the callback, false otherwise.
|
2019-07-19 00:32:57 -04:00
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|
*/
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public function __call( $name, $arguments ) {
|
2020-04-04 23:02:11 -04:00
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|
if ( in_array( $name, $this->compat_methods, true ) ) {
|
2019-09-15 07:53:56 -04:00
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return $this->$name( ...$arguments );
|
2019-07-19 00:32:57 -04:00
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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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*
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* @see WP_oEmbed::discover()
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*
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2020-07-23 16:01:04 -04:00
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* @param string $url The URL to the content.
|
2020-11-16 18:13:08 -05:00
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|
* @param string|array $args {
|
2020-11-17 05:11:11 -05:00
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* Optional. Additional provider arguments. Default empty.
|
2020-11-16 18:13:08 -05:00
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*
|
2020-11-17 05:11:11 -05:00
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* @type bool $discover Optional. Determines whether to attempt to discover link tags
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|
* at the given URL for an oEmbed provider when the provider URL
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|
* is not found in the built-in providers list. Default true.
|
2020-11-16 18:13:08 -05:00
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* }
|
2020-01-11 13:32:05 -05:00
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|
|
* @return string|false The oEmbed provider URL on success, false on failure.
|
2019-07-19 00:32:57 -04:00
|
|
|
*/
|
|
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|
|
public function get_provider( $url, $args = '' ) {
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|
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|
$args = wp_parse_args( $args );
|
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$provider = false;
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if ( ! isset( $args['discover'] ) ) {
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|
$args['discover'] = true;
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|
|
}
|
|
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|
foreach ( $this->providers as $matchmask => $data ) {
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|
list( $providerurl, $regex ) = $data;
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|
|
2020-01-28 19:45:18 -05:00
|
|
|
// Turn the asterisk-type provider URLs into regex.
|
2019-07-19 00:32:57 -04:00
|
|
|
if ( ! $regex ) {
|
|
|
|
|
$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 ) ) {
|
2020-01-28 19:45:18 -05:00
|
|
|
$provider = str_replace( '{format}', 'json', $providerurl ); // JSON is easier to deal with than XML.
|
2019-07-19 00:32:57 -04:00
|
|
|
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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|
}
|
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|
return $provider;
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}
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/**
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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.
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|
*
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|
* The just-in-time addition is for the benefit of the {@see 'oembed_providers'} filter.
|
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*
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|
* @since 4.0.0
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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.
|
|
|
|
|
*/
|
|
|
|
|
public static function _add_provider_early( $format, $provider, $regex = false ) {
|
|
|
|
|
if ( empty( self::$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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|
|
* Removes an oEmbed provider.
|
|
|
|
|
*
|
|
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|
|
* 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.
|
2020-11-17 05:11:11 -05:00
|
|
|
* @param string|array $args Optional. Additional arguments for retrieving embed HTML.
|
|
|
|
|
* See wp_oembed_get() for accepted arguments. Default empty.
|
2020-01-11 13:32:05 -05:00
|
|
|
* @return object|false The result in the form of an object on success, false on failure.
|
2019-07-19 00:32:57 -04:00
|
|
|
*/
|
|
|
|
|
public function get_data( $url, $args = '' ) {
|
|
|
|
|
$args = wp_parse_args( $args );
|
|
|
|
|
|
|
|
|
|
$provider = $this->get_provider( $url, $args );
|
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|
|
|
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|
|
|
if ( ! $provider ) {
|
|
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|
|
return false;
|
|
|
|
|
}
|
|
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|
|
|
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|
|
$data = $this->fetch( $provider, $url, $args );
|
|
|
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|
|
|
|
|
|
if ( false === $data ) {
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
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|
|
|
|
|
|
|
return $data;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 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.
|
2020-11-17 05:11:11 -05:00
|
|
|
* @param string|array $args Optional. Additional arguments for retrieving embed HTML.
|
|
|
|
|
* See wp_oembed_get() for accepted arguments. Default empty.
|
2020-11-16 18:13:08 -05:00
|
|
|
* @return string|false The UNSANITIZED (and potentially unsafe) HTML that should be used to embed
|
|
|
|
|
* on success, false on failure.
|
2019-07-19 00:32:57 -04:00
|
|
|
*/
|
|
|
|
|
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.
|
|
|
|
|
*
|
2020-06-26 14:49:09 -04:00
|
|
|
* Returning a non-null value from the filter will effectively short-circuit retrieval
|
|
|
|
|
* and return the passed value instead.
|
2019-07-19 00:32:57 -04:00
|
|
|
*
|
|
|
|
|
* @since 4.5.3
|
|
|
|
|
*
|
2020-11-16 18:13:08 -05:00
|
|
|
* @param null|string $result The UNSANITIZED (and potentially unsafe) HTML that should be used to embed.
|
|
|
|
|
* Default null to continue retrieving the result.
|
|
|
|
|
* @param string $url The URL to the content that should be attempted to be embedded.
|
2020-11-17 05:11:11 -05:00
|
|
|
* @param string|array $args Optional. Additional arguments for retrieving embed HTML.
|
|
|
|
|
* See wp_oembed_get() for accepted arguments. Default empty.
|
2019-07-19 00:32:57 -04:00
|
|
|
*/
|
|
|
|
|
$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.
|
2020-11-17 05:11:11 -05:00
|
|
|
* @param string|array $args Optional. Additional arguments for retrieving embed HTML.
|
|
|
|
|
* See wp_oembed_get() for accepted arguments. Default empty.
|
2019-07-19 00:32:57 -04:00
|
|
|
*/
|
|
|
|
|
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.
|
2020-01-11 13:32:05 -05:00
|
|
|
* @return string|false The oEmbed provider URL on success, false on failure.
|
2019-07-19 00:32:57 -04:00
|
|
|
*/
|
|
|
|
|
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 );
|
|
|
|
|
|
2020-01-28 19:45:18 -05:00
|
|
|
// Fetch URL content.
|
2019-07-19 00:32:57 -04:00
|
|
|
$request = wp_safe_remote_get( $url, $args );
|
|
|
|
|
$html = wp_remote_retrieve_body( $request );
|
|
|
|
|
if ( $html ) {
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 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',
|
|
|
|
|
)
|
|
|
|
|
);
|
|
|
|
|
|
2020-01-28 19:45:18 -05:00
|
|
|
// Strip <body>.
|
2019-07-19 00:32:57 -04:00
|
|
|
$html_head_end = stripos( $html, '</head>' );
|
|
|
|
|
if ( $html_head_end ) {
|
|
|
|
|
$html = substr( $html, 0, $html_head_end );
|
|
|
|
|
}
|
|
|
|
|
|
2020-01-28 19:45:18 -05:00
|
|
|
// Do a quick check.
|
2019-07-19 00:32:57 -04:00
|
|
|
$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'] );
|
|
|
|
|
|
2020-01-28 19:45:18 -05:00
|
|
|
// Stop here if it's JSON (that's all we need).
|
2020-05-16 14:42:12 -04:00
|
|
|
if ( 'json' === $linktypes[ $atts['type'] ] ) {
|
2019-07-19 00:32:57 -04:00
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2020-01-28 19:45:18 -05:00
|
|
|
// JSON is preferred to XML.
|
2019-07-19 00:32:57 -04:00
|
|
|
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.
|
2020-11-17 05:11:11 -05:00
|
|
|
* @param string|array $args Optional. Additional arguments for retrieving embed HTML.
|
|
|
|
|
* See wp_oembed_get() for accepted arguments. Default empty.
|
2020-01-11 13:32:05 -05:00
|
|
|
* @return object|false The result in the form of an object on success, false on failure.
|
2019-07-19 00:32:57 -04:00
|
|
|
*/
|
|
|
|
|
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.
|
|
|
|
|
*
|
2020-11-17 05:11:11 -05:00
|
|
|
* @param string $provider URL of the oEmbed provider.
|
|
|
|
|
* @param string $url URL of the content to be embedded.
|
|
|
|
|
* @param array $args Optional. Additional arguments for retrieving embed HTML.
|
|
|
|
|
* See wp_oembed_get() for accepted arguments. Default empty.
|
2019-07-19 00:32:57 -04:00
|
|
|
*/
|
|
|
|
|
$provider = apply_filters( 'oembed_fetch_url', $provider, $url, $args );
|
|
|
|
|
|
|
|
|
|
foreach ( array( 'json', 'xml' ) as $format ) {
|
|
|
|
|
$result = $this->_fetch_with_format( $provider, $format );
|
2020-05-16 14:42:12 -04:00
|
|
|
if ( is_wp_error( $result ) && 'not-implemented' === $result->get_error_code() ) {
|
2019-07-19 00:32:57 -04:00
|
|
|
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.)
|
2020-01-11 13:32:05 -05:00
|
|
|
* @param string $format Format to use.
|
|
|
|
|
* @return object|false|WP_Error The result in the form of an object on success, false on failure.
|
2019-07-19 00:32:57 -04:00
|
|
|
*/
|
|
|
|
|
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-wp-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' );
|
|
|
|
|
}
|
|
|
|
|
$body = wp_remote_retrieve_body( $response );
|
|
|
|
|
if ( ! $body ) {
|
|
|
|
|
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;
|
|
|
|
|
}
|
|
|
|
|
|
2020-08-12 11:25:03 -04:00
|
|
|
if ( PHP_VERSION_ID < 80000 ) {
|
|
|
|
|
// This function has been deprecated in PHP 8.0 because in libxml 2.9.0, external entity loading
|
|
|
|
|
// is disabled by default, so this function is no longer needed to protect against XXE attacks.
|
|
|
|
|
// phpcs:ignore PHPCompatibility.FunctionUse.RemovedFunctions.libxml_disable_entity_loaderDeprecated
|
|
|
|
|
$loader = libxml_disable_entity_loader( true );
|
|
|
|
|
}
|
|
|
|
|
|
2019-07-19 00:32:57 -04:00
|
|
|
$errors = libxml_use_internal_errors( true );
|
|
|
|
|
|
|
|
|
|
$return = $this->_parse_xml_body( $response_body );
|
|
|
|
|
|
|
|
|
|
libxml_use_internal_errors( $errors );
|
2020-08-12 11:25:03 -04:00
|
|
|
|
|
|
|
|
if ( PHP_VERSION_ID < 80000 && isset( $loader ) ) {
|
|
|
|
|
// phpcs:ignore PHPCompatibility.FunctionUse.RemovedFunctions.libxml_disable_entity_loaderDeprecated
|
|
|
|
|
libxml_disable_entity_loader( $loader );
|
|
|
|
|
}
|
2019-07-19 00:32:57 -04:00
|
|
|
|
|
|
|
|
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.
|
2020-01-11 13:32:05 -05:00
|
|
|
* @param string $url The URL to the content that is desired to be embedded.
|
|
|
|
|
* @return string|false The HTML needed to embed on success, false on failure.
|
2019-07-19 00:32:57 -04:00
|
|
|
*/
|
|
|
|
|
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 );
|
|
|
|
|
}
|
|
|
|
|
}
|
