File "redirects.php"
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<?php
namespace Yoast\WP\SEO\Integrations\Front_End;
use Yoast\WP\SEO\Conditionals\Front_End_Conditional;
use Yoast\WP\SEO\Helpers\Current_Page_Helper;
use Yoast\WP\SEO\Helpers\Meta_Helper;
use Yoast\WP\SEO\Helpers\Options_Helper;
use Yoast\WP\SEO\Helpers\Redirect_Helper;
use Yoast\WP\SEO\Helpers\Url_Helper;
use Yoast\WP\SEO\Integrations\Integration_Interface;
/**
* Class Redirects.
*/
class Redirects implements Integration_Interface {
/**
* The options helper.
*
* @var Options_Helper
*/
protected $options;
/**
* The meta helper.
*
* @var Meta_Helper
*/
protected $meta;
/**
* The current page helper.
*
* @var Current_Page_Helper
*/
protected $current_page;
/**
* The redirect helper.
*
* @var Redirect_Helper
*/
private $redirect;
/**
* The URL helper.
*
* @var Url_Helper
*/
private $url;
/**
* Holds the WP_Query variables we should get rid of.
*
* @var string[]
*/
private $date_query_variables = [
'year',
'm',
'monthnum',
'day',
'hour',
'minute',
'second',
];
/**
* Sets the helpers.
*
* @codeCoverageIgnore
*
* @param Options_Helper $options Options helper.
* @param Meta_Helper $meta Meta helper.
* @param Current_Page_Helper $current_page The current page helper.
* @param Redirect_Helper $redirect The redirect helper.
* @param Url_Helper $url The URL helper.
*/
public function __construct( Options_Helper $options, Meta_Helper $meta, Current_Page_Helper $current_page, Redirect_Helper $redirect, Url_Helper $url ) {
$this->options = $options;
$this->meta = $meta;
$this->current_page = $current_page;
$this->redirect = $redirect;
$this->url = $url;
}
/**
* Returns the conditionals based in which this loadable should be active.
*
* @return array
*/
public static function get_conditionals() {
return [ Front_End_Conditional::class ];
}
/**
* Initializes the integration.
*
* This is the place to register hooks and filters.
*
* @return void
*/
public function register_hooks() {
\add_action( 'wp', [ $this, 'archive_redirect' ] );
\add_action( 'wp', [ $this, 'page_redirect' ], 99 );
\add_action( 'wp', [ $this, 'category_redirect' ] );
\add_action( 'template_redirect', [ $this, 'attachment_redirect' ], 1 );
\add_action( 'template_redirect', [ $this, 'disable_date_queries' ] );
}
/**
* Disable date queries, if they're disabled in Yoast SEO settings, to prevent indexing the wrong things.
*
* @return void
*/
public function disable_date_queries() {
if ( $this->options->get( 'disable-date', false ) ) {
$exploded_url = \explode( '?', $this->url->recreate_current_url(), 2 );
list( $base_url, $query_string ) = \array_pad( $exploded_url, 2, '' );
\parse_str( $query_string, $query_vars );
foreach ( $this->date_query_variables as $variable ) {
if ( \in_array( $variable, \array_keys( $query_vars ), true ) ) {
$this->do_date_redirect( $query_vars, $base_url );
}
}
}
}
/**
* When certain archives are disabled, this redirects those to the homepage.
*
* @return void
*/
public function archive_redirect() {
if ( $this->need_archive_redirect() ) {
$this->redirect->do_safe_redirect( \get_bloginfo( 'url' ), 301 );
}
}
/**
* Based on the redirect meta value, this function determines whether it should redirect the current post / page.
*
* @return void
*/
public function page_redirect() {
if ( ! $this->current_page->is_simple_page() ) {
return;
}
$post = \get_post();
if ( ! \is_object( $post ) ) {
return;
}
$redirect = $this->meta->get_value( 'redirect', $post->ID );
if ( $redirect === '' ) {
return;
}
$this->redirect->do_safe_redirect( $redirect, 301 );
}
/**
* If the option to disable attachment URLs is checked, this performs the redirect to the attachment.
*
* @return void
*/
public function attachment_redirect() {
if ( ! $this->current_page->is_attachment() ) {
return;
}
if ( $this->options->get( 'disable-attachment', false ) === false ) {
return;
}
$url = $this->get_attachment_url();
if ( empty( $url ) ) {
return;
}
$this->redirect->do_unsafe_redirect( $url, 301 );
}
/**
* Checks if certain archive pages are disabled to determine if a archive redirect is needed.
*
* @codeCoverageIgnore
*
* @return bool Whether or not to redirect an archive page.
*/
protected function need_archive_redirect() {
if ( $this->options->get( 'disable-date', false ) && $this->current_page->is_date_archive() ) {
return true;
}
if ( $this->options->get( 'disable-author', false ) && $this->current_page->is_author_archive() ) {
return true;
}
if ( $this->options->get( 'disable-post_format', false ) && $this->current_page->is_post_format_archive() ) {
return true;
}
return false;
}
/**
* Retrieves the attachment url for the current page.
*
* @codeCoverageIgnore It wraps WordPress functions.
*
* @return string The attachment url.
*/
protected function get_attachment_url() {
/**
* Allows the developer to change the target redirection URL for attachments.
*
* @since 7.5.3
*
* @param string $attachment_url The attachment URL for the queried object.
* @param object $queried_object The queried object.
*/
return \apply_filters(
'wpseo_attachment_redirect_url',
\wp_get_attachment_url( \get_queried_object_id() ),
\get_queried_object()
);
}
/**
* Redirects away query variables that shouldn't work.
*
* @param array $query_vars The query variables in the current URL.
* @param string $base_url The base URL without query string.
*
* @return void
*/
private function do_date_redirect( $query_vars, $base_url ) {
foreach ( $this->date_query_variables as $variable ) {
unset( $query_vars[ $variable ] );
}
$url = $base_url;
if ( \count( $query_vars ) > 0 ) {
$url .= '?' . \http_build_query( $query_vars );
}
$this->redirect->do_safe_redirect( $url, 301 );
}
/**
* Strips `cat=-1` from the URL and redirects to the resulting URL.
*
* @return void
*/
public function category_redirect() {
/**
* Allows the developer to keep cat=-1 GET parameters
*
* @since 19.9
*
* @param bool $remove_cat_parameter Whether to remove the `cat=-1` GET parameter. Default true.
*/
$should_remove_parameter = \apply_filters( 'wpseo_remove_cat_parameter', true );
// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Data is not processed or saved.
if ( $should_remove_parameter && isset( $_GET['cat'] ) && $_GET['cat'] === '-1' ) {
// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Data is not processed or saved.
unset( $_GET['cat'] );
if ( isset( $_SERVER['REQUEST_URI'] ) ) {
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput -- This is just a replace and the data is never saved.
$_SERVER['REQUEST_URI'] = \remove_query_arg( 'cat' );
}
$this->redirect->do_safe_redirect( $this->url->recreate_current_url(), 301, 'Stripping cat=-1 from the URL' );
}
}
}