Archived
162 lines
4.6 KiB
PHP
162 lines
4.6 KiB
PHP
<?php
|
|
/**
|
|
* @package WPSEO\Frontend
|
|
*/
|
|
|
|
/**
|
|
* This code handles the category rewrites.
|
|
*/
|
|
class WPSEO_Rewrite {
|
|
|
|
/**
|
|
* Class constructor
|
|
*/
|
|
function __construct() {
|
|
add_filter( 'query_vars', array( $this, 'query_vars' ) );
|
|
add_filter( 'category_link', array( $this, 'no_category_base' ) );
|
|
add_filter( 'request', array( $this, 'request' ) );
|
|
add_filter( 'category_rewrite_rules', array( $this, 'category_rewrite_rules' ) );
|
|
|
|
add_action( 'created_category', array( $this, 'schedule_flush' ) );
|
|
add_action( 'edited_category', array( $this, 'schedule_flush' ) );
|
|
add_action( 'delete_category', array( $this, 'schedule_flush' ) );
|
|
|
|
add_action( 'init', array( $this, 'flush' ), 999 );
|
|
}
|
|
|
|
/**
|
|
* Save an option that triggers a flush on the next init.
|
|
*
|
|
* @since 1.2.8
|
|
*/
|
|
function schedule_flush() {
|
|
update_option( 'wpseo_flush_rewrite', 1 );
|
|
}
|
|
|
|
/**
|
|
* If the flush option is set, flush the rewrite rules.
|
|
*
|
|
* @since 1.2.8
|
|
* @return bool
|
|
*/
|
|
function flush() {
|
|
if ( get_option( 'wpseo_flush_rewrite' ) ) {
|
|
|
|
add_action( 'shutdown', 'flush_rewrite_rules' );
|
|
delete_option( 'wpseo_flush_rewrite' );
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Override the category link to remove the category base.
|
|
*
|
|
* @param string $link Unused, overridden by the function.
|
|
*
|
|
* @return string
|
|
*/
|
|
function no_category_base( $link ) {
|
|
$category_base = get_option( 'category_base' );
|
|
|
|
if ( '' == $category_base ) {
|
|
$category_base = 'category';
|
|
}
|
|
|
|
// Remove initial slash, if there is one (we remove the trailing slash in the regex replacement and don't want to end up short a slash).
|
|
if ( '/' == substr( $category_base, 0, 1 ) ) {
|
|
$category_base = substr( $category_base, 1 );
|
|
}
|
|
|
|
$category_base .= '/';
|
|
|
|
return preg_replace( '`' . preg_quote( $category_base, '`' ) . '`u', '', $link, 1 );
|
|
}
|
|
|
|
/**
|
|
* Update the query vars with the redirect var when stripcategorybase is active
|
|
*
|
|
* @param array $query_vars
|
|
*
|
|
* @return array
|
|
*/
|
|
function query_vars( $query_vars ) {
|
|
$options = WPSEO_Options::get_all();
|
|
|
|
if ( $options['stripcategorybase'] === true ) {
|
|
$query_vars[] = 'wpseo_category_redirect';
|
|
}
|
|
|
|
return $query_vars;
|
|
}
|
|
|
|
/**
|
|
* Redirect the "old" category URL to the new one.
|
|
*
|
|
* @param array $query_vars Query vars to check for existence of redirect var.
|
|
*
|
|
* @return array
|
|
*/
|
|
function request( $query_vars ) {
|
|
if ( isset( $query_vars['wpseo_category_redirect'] ) ) {
|
|
$catlink = trailingslashit( get_option( 'home' ) ) . user_trailingslashit( $query_vars['wpseo_category_redirect'], 'category' );
|
|
|
|
wp_redirect( $catlink, 301 );
|
|
exit;
|
|
}
|
|
|
|
return $query_vars;
|
|
}
|
|
|
|
/**
|
|
* This function taken and only slightly adapted from WP No Category Base plugin by Saurabh Gupta
|
|
*
|
|
* @return array
|
|
*/
|
|
function category_rewrite_rules() {
|
|
global $wp_rewrite;
|
|
|
|
$category_rewrite = array();
|
|
|
|
$taxonomy = get_taxonomy( 'category' );
|
|
|
|
$blog_prefix = '';
|
|
if ( is_multisite() && ! is_subdomain_install() && is_main_site() ) {
|
|
$blog_prefix = 'blog/';
|
|
}
|
|
|
|
$categories = get_categories( array( 'hide_empty' => false ) );
|
|
if ( is_array( $categories ) && $categories !== array() ) {
|
|
foreach ( $categories as $category ) {
|
|
$category_nicename = $category->slug;
|
|
if ( $category->parent == $category->cat_ID ) {
|
|
// Recursive recursion.
|
|
$category->parent = 0;
|
|
}
|
|
elseif ( $taxonomy->rewrite['hierarchical'] != 0 && $category->parent != 0 ) {
|
|
$parents = get_category_parents( $category->parent, false, '/', true );
|
|
if ( ! is_wp_error( $parents ) ) {
|
|
$category_nicename = $parents . $category_nicename;
|
|
}
|
|
unset( $parents );
|
|
}
|
|
|
|
$category_rewrite[ $blog_prefix . '(' . $category_nicename . ')/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$' ] = 'index.php?category_name=$matches[1]&feed=$matches[2]';
|
|
$category_rewrite[ $blog_prefix . '(' . $category_nicename . ')/' . $wp_rewrite->pagination_base . '/?([0-9]{1,})/?$' ] = 'index.php?category_name=$matches[1]&paged=$matches[2]';
|
|
$category_rewrite[ $blog_prefix . '(' . $category_nicename . ')/?$' ] = 'index.php?category_name=$matches[1]';
|
|
}
|
|
unset( $categories, $category, $category_nicename );
|
|
}
|
|
|
|
// Redirect support from Old Category Base.
|
|
$old_base = $wp_rewrite->get_category_permastruct();
|
|
$old_base = str_replace( '%category%', '(.+)', $old_base );
|
|
$old_base = trim( $old_base, '/' );
|
|
$category_rewrite[ $old_base . '$' ] = 'index.php?wpseo_category_redirect=$matches[1]';
|
|
|
|
return $category_rewrite;
|
|
}
|
|
} /* End of class */
|