<?php
// Exits if accessed directly.
if ( ! defined( 'ABSPATH' ) ) exit;
/**
* Validates posts/terms when creating, saving (updating), deleting and other.
*
* @since 3.0.0
*/
class YMFSEO_Checker {
/**
* Meta check length values.
*
* @since 2.2.0
* @since 3.0.0 Is YMFSEO_Checker property.
*
* @var array
*/
public static array $meta_lengths = [
'title' => [
'min' => 30,
'rec' => [ 40, 60 ],
'max' => 70,
],
'description' => [
'min' => 50,
'rec' => [ 140, 160 ],
'max' => 170,
],
];
/**
* Retrieves `true` if current site is not `noindex`.
*
* @return bool
*/
public static function is_site_public () : bool {
return get_option( 'blog_public', true );
}
/**
* Retrieves whether the site in a network with a subdirectory type.
*
* @since 2.0.1
* @since 3.0.0 Is YMFSEO_Checker method.
*
* @return bool Is multisite with subdirectory structure.
*/
public static function is_subdir_multisite () : bool {
return is_multisite() && ! is_subdomain_install();
}
/**
* Retrieves `true` if user can edit metas.
*
* @return bool
*/
public static function is_current_user_can_edit_metas () : bool {
return current_user_can( 'ymfseo_edit_metas' );
}
/**
* Retrieves `true` if user can view site health.
*
* @since 3.1.1
*
* @return bool
*/
public static function is_current_user_can_view_site_health () : bool {
return current_user_can( 'view_site_health_checks' );
}
/**
* Retrieves `true` if user can manage options
*
* @since 3.1.1
*
* @return bool
*/
public static function is_current_user_can_manage_options () : bool {
return current_user_can( 'manage_options' );
}
/**
* Retrieves `true` if post type is public.
*
* @param int $post_id Post ID.
*
* @return bool
*/
public static function is_post_type_public ( int $post_id ) : bool {
return in_array( get_post_type( $post_id ), YMFSEO::get_public_post_types() );
}
/**
* Retrieves `true` if taxonomy public.
*
* @param string $taxonomy Taxonomy slug.
*
* @return bool
*/
public static function is_taxonomy_public ( string $taxonomy ) : bool {
return in_array( $taxonomy, YMFSEO::get_public_taxonomies() );
}
/**
* Retrieves `true` if taxonomy noindex.
*
* @since 3.3.3
*
* @param string $taxonomy Taxonomy slug.
*
* @return bool
*/
public static function is_taxonomy_noindex ( string $taxonomy ) : bool {
return YMFSEO_Settings::get_option( "ymfseo_taxonomy_noindex_{$taxonomy}" );
}
/**
* Retrieves `true` if site icon is SVG format.
*
* @since 4.0.0
*
* @return bool
*/
public static function is_svg_favicon () : bool {
return '.svg' == substr( get_site_icon_url(), -4 );
}
/**
* Retrieves `true` if Imagick enabled.
*
* @since 4.0.0
*
* @return bool
*/
public static function is_imagick_available () : bool {
if ( ! class_exists( 'Imagick' ) ) {
return false;
}
return empty(
array_diff(
[ 'svg', 'ico', 'png' ],
array_map( fn ( $format ) => strtolower( $format ), Imagick::queryFormats() )
)
);
}
/**
* Checks post SEO status.
*
* @since 3.0.0 Is YMFSEO_Checker method.
* @since 4.0.0 Adds title parts if needed.
*
* @param WP_Post|WP_Term $object Post or Term object.
*
* @return array Check result data.
*/
public static function check_seo ( WP_Post|WP_Term $object ) : array {
$status = 'good';
$notes = [];
$meta_fields = new YMFSEO_Meta_Fields( $object );
// Adds title parts if not hidden via settings.
if ( ! YMFSEO_Settings::get_option( 'hide_title_parts' ) ) {
$meta_fields->title = implode( ' ', [
$meta_fields->title,
YMFSEO::get_separator(),
( $object instanceof WP_Post && $object->ID == get_option( 'page_on_front' ) ) ? get_bloginfo( 'description' ) : get_bloginfo( 'name' ),
]);
}
$title_length = mb_strlen( $meta_fields->title );
$description_length = mb_strlen( $meta_fields->description );
// Too short title.
if ( $title_length < YMFSEO_Checker::$meta_lengths[ 'title' ][ 'min' ] ) {
$status = 'bad';
/* translators: %d: Number of symbols */
$notes[] = sprintf( __( 'The title is too short (%d).', 'ym-fast-seo' ),
esc_html( $title_length ),
);
}
// Too long title.
if ( $title_length > YMFSEO_Checker::$meta_lengths[ 'title' ][ 'max' ] ) {
$status = 'alert';
/* translators: %d: Number of symbols */
$notes[] = sprintf( __( 'The title is too long (%d).', 'ym-fast-seo' ),
esc_html( $title_length ),
);
}
// No description.
if ( empty( $meta_fields->description ) ) {
$status = 'bad';
$notes[] = __( 'No description.', 'ym-fast-seo' );
} else {
// Too short description.
if ( $description_length < YMFSEO_Checker::$meta_lengths[ 'description' ][ 'min' ] ) {
$status = 'bad';
/* translators: %d: Number of symbols */
$notes[] = sprintf( __( 'The description is too short (%d).', 'ym-fast-seo' ),
esc_html( $description_length ),
);
}
// Too long description.
if ( $description_length > YMFSEO_Checker::$meta_lengths[ 'description' ][ 'max' ] ) {
$status = 'alert';
/* translators: %d: Number of symbols */
$notes[] = sprintf( __( 'The description is too long (%d).', 'ym-fast-seo' ),
esc_html( $description_length ),
);
}
}
if ( $object instanceof WP_Post ) {
// Not public.
if ( 'publish' !== get_post_status( $object ) ) {
$status = 'noindex';
$notes[] = __( 'Post status is "not published".', 'ym-fast-seo' );
}
}
if ( $object instanceof WP_Post || $object instanceof WP_Term ) {
// Noindex.
if ( $meta_fields->noindex ) {
$status = 'noindex';
$notes[] = __( 'Indexing has been disallowed.', 'ym-fast-seo' );
}
}
// Good!
if ( empty( $notes ) ) {
/* translators: SEO check state */
$notes[] = __( 'Good!', 'ym-fast-seo' );
}
return [
'status' => $status,
'notes' => $notes,
];
}
}