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<?php

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namespace Yoast\WP\SEO\Integrations\Front_End;

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use WP_Post;

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use Yoast\WP\SEO\Conditionals\Front_End_Conditional;

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use Yoast\WP\SEO\Conditionals\Open_Graph_Conditional;

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use Yoast\WP\SEO\Integrations\Integration_Interface;

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use Yoast\WP\SEO\Surfaces\Meta_Surface;

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/**

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* Class Open_Graph_OEmbed.

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class Open_Graph_OEmbed implements Integration_Interface {

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/**

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* The meta surface.

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* @var Meta_Surface

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private $meta;

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/**

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* The oEmbed data.

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* @var array

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private $data;

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/**

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* The post ID for the current post.

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* @var int

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private $post_id;

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/**

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* The post meta.

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* @var Meta|false

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private $post_meta;

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/**

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* Returns the conditionals based in which this loadable should be active.

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* @return array

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public static function get_conditionals() {

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return [ Front_End_Conditional::class, Open_Graph_Conditional::class ];

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}

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/**

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* Initializes the integration.

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* This is the place to register hooks and filters.

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* @return void

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public function register_hooks() {

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\add_filter( 'oembed_response_data', [ $this, 'set_oembed_data' ], 10, 2 );

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}

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/**

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* Open_Graph_OEmbed constructor.

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* @param Meta_Surface $meta The meta surface.

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public function __construct( Meta_Surface $meta ) {

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$this->meta = $meta;

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}

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/**

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* Callback function to pass to the oEmbed's response data that will enable

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* support for using the image and title set by the WordPress SEO plugin's fields. This

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* address the concern where some social channels/subscribed use oEmebed data over Open Graph data

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* if both are present.

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* @link https://developer.wordpress.org/reference/hooks/oembed_response_data/ for hook info.

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* @param array $data The oEmbed data.

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* @param WP_Post $post The current Post object.

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* @return array An array of oEmbed data with modified values where appropriate.

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public function set_oembed_data( $data, $post ) {

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// Data to be returned.

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$this->data = $data;

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$this->post_id = $post->ID;

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$this->post_meta = $this->meta->for_post( $this->post_id );

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if ( ! empty( $this->post_meta ) ) {

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$this->set_title();

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$this->set_description();

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$this->set_image();

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}

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return $this->data;

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}

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/**

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* Sets the OpenGraph title if configured.

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* @return void

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protected function set_title() {

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$opengraph_title = $this->post_meta->open_graph_title;

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if ( ! empty( $opengraph_title ) ) {

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$this->data['title'] = $opengraph_title;

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}

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}

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/**

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* Sets the OpenGraph description if configured.

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* @return void

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protected function set_description() {

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$opengraph_description = $this->post_meta->open_graph_description;

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if ( ! empty( $opengraph_description ) ) {

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$this->data['description'] = $opengraph_description;

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}

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}

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/**

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* Sets the image if it has been configured.

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* @return void

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protected function set_image() {

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$images = $this->post_meta->open_graph_images;

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if ( ! \is_array( $images ) ) {

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return;

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}

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$image = \reset( $images );

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if ( empty( $image ) || ! isset( $image['url'] ) ) {

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return;

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}

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$this->data['thumbnail_url'] = $image['url'];

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if ( isset( $image['width'] ) ) {

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$this->data['thumbnail_width'] = $image['width'];

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}

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if ( isset( $image['height'] ) ) {

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$this->data['thumbnail_height'] = $image['height'];

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}

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}

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}

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