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<?php |
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|
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class Red_Monitor { |
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private $monitor_group_id; |
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private $updated_posts = array(); |
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private $monitor_types = array(); |
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|
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function __construct( $options ) { |
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$this->monitor_types = apply_filters( 'redirection_monitor_types', isset( $options['monitor_types'] ) ? $options['monitor_types'] : array() ); |
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|
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if ( count( $this->monitor_types ) > 0 && $options['monitor_post'] > 0 ) { |
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$this->monitor_group_id = intval( $options['monitor_post'], 10 ); |
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$this->associated = isset( $options['associated_redirect'] ) ? $options['associated_redirect'] : ''; |
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|
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// Only monitor if permalinks enabled |
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if ( get_option( 'permalink_structure' ) ) { |
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add_action( 'pre_post_update', array( $this, 'pre_post_update' ), 10, 2 ); |
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add_action( 'post_updated', array( $this, 'post_updated' ), 11, 3 ); |
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add_filter( 'redirection_remove_existing', array( $this, 'remove_existing_redirect' ) ); |
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add_filter( 'redirection_permalink_changed', array( $this, 'has_permalink_changed' ), 10, 3 ); |
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|
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if ( in_array( 'trash', $this->monitor_types ) ) { |
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add_action( 'wp_trash_post', array( $this, 'post_trashed' ) ); |
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} |
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} |
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} |
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} |
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|
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public function remove_existing_redirect( $url ) { |
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Red_Item::disable_where_matches( $url ); |
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} |
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|
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public function can_monitor_post( $post, $post_before ) { |
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// Check this is for the expected post |
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if ( ! isset( $post->ID ) || ! isset( $this->updated_posts[ $post->ID ] ) ) { |
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return false; |
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} |
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|
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// Don't do anything if we're not published |
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if ( $post->post_status !== 'publish' || $post_before->post_status !== 'publish' ) { |
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return false; |
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} |
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|
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$type = get_post_type( $post->ID ); |
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if ( ! in_array( $type, $this->monitor_types ) ) { |
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return false; |
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} |
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|
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return true; |
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} |
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|
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/** |
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* Called when a post has been updated - check if the slug has changed |
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*/ |
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public function post_updated( $post_id, $post, $post_before ) { |
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if ( isset( $this->updated_posts[ $post_id ] ) && $this->can_monitor_post( $post, $post_before ) ) { |
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$this->check_for_modified_slug( $post_id, $this->updated_posts[ $post_id ] ); |
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} |
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} |
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|
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/** |
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* Remember the previous post permalink |
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*/ |
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public function pre_post_update( $post_id, $data ) { |
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$this->updated_posts[ $post_id ] = get_permalink( $post_id ); |
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} |
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|
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public function post_trashed( $post_id ) { |
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$data = array( |
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'url' => wp_parse_url( get_permalink( $post_id ), PHP_URL_PATH ), |
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'action_data' => array( 'url' => '/' ), |
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'match_type' => 'url', |
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'action_type' => 'url', |
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'action_code' => 301, |
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'group_id' => $this->monitor_group_id, |
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'status' => 'disabled', |
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); |
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|
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// Create a new redirect for this post, but only if not draft |
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if ( $data['url'] !== '/' ) { |
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Red_Item::create( $data ); |
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} |
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} |
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|
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/** |
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* Changed if permalinks are different and the before wasn't the site url (we don't want to redirect the site URL) |
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*/ |
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public function has_permalink_changed( $result, $before, $after ) { |
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// Check it's not redirecting from the root |
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if ( $this->get_site_path() === $before || $before === '/' ) { |
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return false; |
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} |
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|
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// Are the URLs the same? |
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if ( $before === $after ) { |
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return false; |
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} |
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|
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return true; |
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} |
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|
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private function get_site_path() { |
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$path = wp_parse_url( get_site_url(), PHP_URL_PATH ); |
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|
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if ( $path ) { |
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return rtrim( $path, '/' ) . '/'; |
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} |
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|
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return '/'; |
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} |
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|
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public function check_for_modified_slug( $post_id, $before ) { |
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$after = wp_parse_url( get_permalink( $post_id ), PHP_URL_PATH ); |
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$before = wp_parse_url( esc_url( $before ), PHP_URL_PATH ); |
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|
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if ( apply_filters( 'redirection_permalink_changed', false, $before, $after ) ) { |
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do_action( 'redirection_remove_existing', $after, $post_id ); |
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|
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$data = array( |
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'url' => $before, |
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'action_data' => array( 'url' => $after ), |
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'match_type' => 'url', |
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'action_type' => 'url', |
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'action_code' => 301, |
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'group_id' => $this->monitor_group_id, |
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); |
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|
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// Create a new redirect for this post |
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$new_item = Red_Item::create( $data ); |
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|
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if ( ! is_wp_error( $new_item ) ) { |
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do_action( 'redirection_monitor_created', $new_item, $before, $post_id ); |
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|
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if ( ! empty( $this->associated ) ) { |
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// Create an associated redirect for this post |
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$data['url'] = trailingslashit( $data['url'] ) . ltrim( $this->associated, '/' ); |
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$data['action_data'] = array( 'url' => trailingslashit( $data['action_data']['url'] ) . ltrim( $this->associated, '/' ) ); |
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Red_Item::create( $data ); |
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} |
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} |
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|
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return true; |
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} |
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|
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return false; |
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} |
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} |
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