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154 lines
4.1 KiB
PHP
154 lines
4.1 KiB
PHP
<?php
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/**
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* The Attachment helpers.
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*
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* @since 0.9.0
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* @package RankMath
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* @subpackage RankMath\Helpers
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* @author Rank Math <support@rankmath.com>
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*/
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namespace RankMath\Helpers;
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use RankMath\Helper;
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defined( 'ABSPATH' ) || exit;
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/**
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* Attachment trait.
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*/
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class Attachment {
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/**
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* Check if a post can be included in sitemap.
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*
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* @param int $attachment_id Attachment ID to check.
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* @return bool
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*/
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public static function attachment_in_sitemap( $attachment_id ) {
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if ( empty( $attachment_id ) ) {
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return false;
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}
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$exclude_sitemap = get_post_meta( $attachment_id, 'rank_math_exclude_sitemap', true );
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return empty( $exclude_sitemap );
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}
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/**
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* Generate local path for an attachment image.
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* Credit: https://wordpress.stackexchange.com/a/182519
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*
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* @param int $attachment_id Attachment ID.
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* @param string $size Size.
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*/
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public static function get_scaled_image_path( $attachment_id, $size = 'thumbnail' ) {
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$file = get_attached_file( $attachment_id, true );
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if ( empty( $size ) || $size === 'full' ) {
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// For the original size get_attached_file is fine.
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return realpath( $file );
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}
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if ( ! wp_attachment_is_image( $attachment_id ) ) {
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return false; // the ID is not referring to a media.
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}
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$info = image_get_intermediate_size( $attachment_id, $size );
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if ( ! is_array( $info ) || ! isset( $info['file'] ) ) {
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return false; // Probably a bad size argument.
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}
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return realpath( str_replace( wp_basename( $file ), $info['file'], $file ) );
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}
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/**
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* Grabs an image alt text.
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*
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* @param int $attachment_id The attachment ID.
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*
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* @return string The image alt text.
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*/
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public static function get_alt_tag( $attachment_id ) {
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return (string) get_post_meta( $attachment_id, '_wp_attachment_image_alt', true );
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}
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/**
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* Get the relative path of the image.
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*
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* @codeCoverageIgnore
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*
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* @param string $img Image URL.
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*
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* @return string The expanded image URL.
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*/
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public static function get_relative_path( $img ) {
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if ( '/' !== $img[0] ) {
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return $img;
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}
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// If it's a relative URL, it's relative to the domain, not necessarily to the WordPress install, we
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// want to preserve domain name and URL scheme (http / https) though.
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$parsed_url = wp_parse_url( home_url() );
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return $parsed_url['scheme'] . '://' . $parsed_url['host'] . $img;
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}
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/**
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* Find an attachment ID for a given URL.
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*
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* @codeCoverageIgnore
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*
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* @param string $url The URL to find the attachment for.
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*
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* @return int The found attachment ID, or 0 if none was found.
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*/
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public static function get_by_url( $url ) {
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// Because get_by_url won't work on resized versions of images, we strip out the size part of an image URL.
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$url = preg_replace( '/(.*)-\d+x\d+\.(jpg|png|gif)$/', '$1.$2', $url );
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$id = function_exists( 'wpcom_vip_attachment_url_to_postid' ) ? wpcom_vip_attachment_url_to_postid( $url ) : self::url_to_postid( $url );
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return absint( $id );
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}
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/**
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* Implements the attachment_url_to_postid with use of WP Cache.
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*
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* @codeCoverageIgnore
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*
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* @link https://dotlayer.com/20-wordpress-core-functions-that-dont-scale-and-how-to-work-around-it/
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*
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* @param string $url The attachment URL for which we want to know the Post ID.
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*
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* @return int The Post ID belonging to the attachment, 0 if not found.
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*/
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private static function url_to_postid( $url ) {
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$cache_key = sprintf( 'mythemeshop_attachment_url_post_id_%s', md5( $url ) );
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// Set the ID based on the hashed url in the cache.
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$id = wp_cache_get( $cache_key );
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if ( 'not_found' === $id ) {
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return 0;
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}
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// ID is found in cache, return.
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if ( false !== $id ) {
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return $id;
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}
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// phpcs:ignore WordPress.VIP.RestrictedFunctions -- We use the WP COM version if we can, see above.
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$id = attachment_url_to_postid( $url );
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if ( empty( $id ) ) {
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wp_cache_set( $cache_key, 'not_found', 'default', ( 12 * HOUR_IN_SECONDS + mt_rand( 0, ( 4 * HOUR_IN_SECONDS ) ) ) );
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return 0;
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}
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// We have the Post ID, but it's not in the cache yet. We do that here and return.
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wp_cache_set( $cache_key, $id, 'default', ( 24 * HOUR_IN_SECONDS + mt_rand( 0, ( 12 * HOUR_IN_SECONDS ) ) ) );
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return $id;
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}
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}
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