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Mini Shell
Mini Shell
<?php
/**
* Twitter cards functionality.
*
* @since 0.9.0
* @package RankMath
* @subpackage RankMath\OpenGraph
* @author Rank Math <support@rankmath.com>
*
* @copyright Copyright (C) 2008-2019, Yoast BV
* The following code is a derivative work of the code from the Yoast(https://github.com/Yoast/wordpress-seo/), which is licensed under GPL v3.
*/
namespace RankMath\OpenGraph;
use RankMath\Helper;
use RankMath\Post;
use RankMath\Helpers\Str;
use RankMath\Helpers\Arr;
defined( 'ABSPATH' ) || exit;
/**
* Twitter class.
*/
class Twitter extends OpenGraph {
/**
* Network slug.
*
* @var string
*/
public $network = 'twitter';
/**
* Metakey prefix.
*
* @var string
*/
public $prefix = 'twitter';
/**
* Hold site info for twitter card.
*
* @var string
*/
private $site = null;
/**
* Will hold the Twitter card type being created
*
* @var string
*/
private $type;
/**
* The Constructor.
*/
public function __construct() {
/**
* Allow changing the Twitter Card type as output in the Twitter card.
*
* @param string $type
*/
if ( false === $this->do_filter( 'opengraph/twitter_card', true ) ) {
return;
}
$this->action( 'rank_math/opengraph/twitter', 'use_facebook', 1 );
$this->action( 'rank_math/opengraph/twitter', 'type', 5 );
$this->action( 'rank_math/opengraph/twitter', 'title', 10 );
$this->action( 'rank_math/opengraph/twitter', 'description', 11 );
$this->action( 'rank_math/opengraph/twitter', 'website', 14 );
if ( ! post_password_required() ) {
$this->action( 'rank_math/opengraph/twitter', 'image', 30 );
}
if ( is_singular() ) {
$this->action( 'rank_math/opengraph/twitter', 'article_author', 15 );
}
parent::__construct();
}
/**
* Set `use_facebook` variable.
*/
public function use_facebook() {
$use_facebook = ( is_category() || is_tag() || is_tax() ) ? Helper::get_term_meta( 'twitter_use_facebook' ) :
Helper::get_post_meta( 'twitter_use_facebook', Post::is_shop_page() ? Post::get_shop_page_id() : 0, true );
if ( $use_facebook ) {
$this->prefix = 'facebook';
}
}
/**
* Display the Twitter card type.
*
* This defaults to summary but can be filtered using the <code>rank_math_twitter_card_type</code> filter.
*/
public function type() {
$this->determine_card_type();
$this->sanitize_card_type();
$this->tag( 'twitter:card', $this->type );
$remove_tags = false;
if ( is_singular() && ! is_front_page() && in_array( $this->type, [ 'app', 'player' ], true ) ) {
$remove_tags = 'app' === $this->type;
$this->action( 'rank_math/opengraph/twitter', $this->type, 15 );
}
$remove_tags = is_date() && in_array( $this->type, [ 'summary', 'summary_large_image' ], true );
if ( $remove_tags ) {
$this->remove_tags();
}
}
/**
* Output App card.
*/
public function app() {
$this->tag( 'twitter:description', Helper::get_post_meta( 'twitter_app_description' ) );
$this->tag( 'twitter:app:country', Helper::get_post_meta( 'twitter_app_country' ) );
// iPhone.
$this->tag( 'twitter:app:name:iphone', Helper::get_post_meta( 'twitter_app_iphone_name' ) );
$this->tag( 'twitter:app:id:iphone', Helper::get_post_meta( 'twitter_app_iphone_id' ) );
$this->tag( 'twitter:app:url:iphone', Helper::get_post_meta( 'twitter_app_iphone_url' ) );
// iPad.
$this->tag( 'twitter:app:name:ipad', Helper::get_post_meta( 'twitter_app_ipad_name' ) );
$this->tag( 'twitter:app:id:ipad', Helper::get_post_meta( 'twitter_app_ipad_id' ) );
$this->tag( 'twitter:app:url:ipad', Helper::get_post_meta( 'twitter_app_ipad_url' ) );
// Google Play.
$this->tag( 'twitter:app:name:googleplay', Helper::get_post_meta( 'twitter_app_googleplay_name' ) );
$this->tag( 'twitter:app:id:googleplay', Helper::get_post_meta( 'twitter_app_googleplay_id' ) );
$this->tag( 'twitter:app:url:googleplay', Helper::get_post_meta( 'twitter_app_googleplay_url' ) );
}
/**
* Output player card.
*/
public function player() {
$this->tag( 'twitter:player', Helper::get_post_meta( 'twitter_player_url' ) );
$size = Helper::get_post_meta( 'twitter_player_size' );
if ( $size ) {
$size = Arr::from_string( $size, 'x' );
if ( isset( $size[1] ) ) {
$twitter_meta['twitter:player:width'] = (int) $size[0];
$twitter_meta['twitter:player:height'] = (int) $size[1];
}
}
$this->tag( 'twitter:player:stream', Helper::get_post_meta( 'twitter_player_stream' ) );
$this->tag( 'twitter:player:stream:content_type', Helper::get_post_meta( 'twitter_player_stream_ctype' ) );
}
/**
* Output the title.
*/
public function title() {
$this->tag( 'twitter:title', trim( $this->get_title() ) );
}
/**
* Output the description.
*/
public function description() {
$this->tag( 'twitter:description', trim( $this->get_description() ) );
}
/**
* Output the Twitter account for the site.
*/
public function website() {
$this->site = Helper::get_settings( 'titles.twitter_author_names' );
if ( Str::is_non_empty( $this->site ) ) {
$this->tag( 'twitter:site', '@' . $this->site );
}
}
/**
* Output the image for Twitter.
*
* Only used when OpenGraph is inactive or Summary Large Image card is chosen.
*/
public function image() {
$images = new Image( false, $this );
foreach ( $images->get_images() as $image_url => $image_meta ) {
$overlay = $this->get_overlay_image( $this->prefix );
if ( $overlay && ! empty( $image_meta['id'] ) ) {
$secret = $images->generate_secret( $image_meta['id'], $overlay );
$image_url = admin_url( "admin-ajax.php?action=rank_math_overlay_thumb&id={$image_meta['id']}&type={$overlay}&hash={$secret}" );
}
$this->tag( 'twitter:image', esc_url_raw( $image_url ) );
}
}
/**
* Outputs the authors twitter handle.
*/
public function article_author() {
$author = Helper::get_user_meta( 'twitter_author', $GLOBALS['post']->post_author );
$author = $author ? $author : get_user_meta( $GLOBALS['post']->post_author, 'twitter', true );
$author = $this->get_twitter_id( ltrim( trim( $author ), '@' ) );
if ( Str::is_non_empty( $author ) ) {
$this->tag( 'twitter:creator', '@' . $author );
} elseif ( Str::is_non_empty( $this->site ) ) {
$this->tag( 'twitter:creator', '@' . $this->site );
}
}
/**
* Determines the twitter card type for the current page
*/
private function determine_card_type() {
$this->type = Helper::get_post_meta( 'twitter_card_type' );
$this->type = $this->type ? $this->type : Helper::get_settings( 'titles.twitter_card_type' );
/**
* Allow changing the Twitter Card type as output in the Twitter card.
*
* @param string $this->type
*/
$this->type = $this->do_filter( 'opengraph/twitter/card_type', $this->type );
}
/**
* Determines whether the card type is of a type currently allowed by Twitter
*
* @link https://dev.twitter.com/cards/types
*/
private function sanitize_card_type() {
if ( ! in_array( $this->type, [ 'summary', 'summary_large_image', 'app', 'player' ], true ) ) {
$this->type = 'summary';
}
}
/**
* Checks if the given ID is actually an ID or a URL and if URL, distills the ID from it.
*
* Solves issues with filters returning URLs and theme's/other plugins also adding a user meta
* twitter field which expects URL rather than an ID (which is what we expect).
*
* @param string $id Twitter ID or URL.
*
* @return string|bool Twitter ID or false if it failed to get a valid Twitter ID.
*/
private function get_twitter_id( $id ) {
if ( preg_match( '`([A-Za-z0-9_]{1,25})$`', $id, $match ) ) {
return $match[1];
}
return false;
}
/**
* Remove archive tags.
*/
private function remove_tags() {
$this->remove_action( 'rank_math/opengraph/twitter', 'title', 10 );
$this->remove_action( 'rank_math/opengraph/twitter', 'description', 11 );
$this->remove_action( 'rank_math/opengraph/twitter', 'image', 30 );
}
}
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