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<?php |
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/** |
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* Canonical API to handle WordPress Redirecting |
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* |
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* Based on "Permalink Redirect" from Scott Yang and "Enforce www. Preference" |
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* by Mark Jaquith |
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* |
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* @package WordPress |
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* @since 2.3.0 |
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*/ |
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/** |
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* Redirects incoming links to the proper URL based on the site url. |
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* |
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* Search engines consider www.somedomain.com and somedomain.com to be two |
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* different URLs when they both go to the same location. This SEO enhancement |
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* prevents penalty for duplicate content by redirecting all incoming links to |
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* one or the other. |
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* |
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* Prevents redirection for feeds, trackbacks, searches, comment popup, and |
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* admin URLs. Does not redirect on non-pretty-permalink-supporting IIS 7+, |
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* page/post previews, WP admin, Trackbacks, robots.txt, searches, or on POST |
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* requests. |
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* |
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* Will also attempt to find the correct link when a user enters a URL that does |
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* not exist based on exact WordPress query. Will instead try to parse the URL |
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* or query in an attempt to figure the correct page to go to. |
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* |
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* @since 2.3.0 |
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* @uses $wp_rewrite |
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* @uses $is_IIS |
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* |
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* @param string $requested_url Optional. The URL that was requested, used to |
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* figure if redirect is needed. |
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* @param bool $do_redirect Optional. Redirect to the new URL. |
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* @return null|false|string Null, if redirect not needed. False, if redirect |
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* not needed or the string of the URL |
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*/ |
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function redirect_canonical( $requested_url = null, $do_redirect = true ) { |
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global $wp_rewrite, $is_IIS, $wp_query, $wpdb; |
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if ( isset( $_SERVER['REQUEST_METHOD'] ) && ! in_array( strtoupper( $_SERVER['REQUEST_METHOD'] ), array( 'GET', 'HEAD' ) ) ) { |
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return; |
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} |
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// If we're not in wp-admin and the post has been published and preview nonce |
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// is non-existent or invalid then no need for preview in query |
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if ( is_preview() && get_query_var( 'p' ) && 'publish' == get_post_status( get_query_var( 'p' ) ) ) { |
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if ( ! isset( $_GET['preview_id'] ) |
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|| ! isset( $_GET['preview_nonce'] ) |
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|| ! wp_verify_nonce( $_GET['preview_nonce'], 'post_preview_' . (int) $_GET['preview_id'] ) ) { |
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$wp_query->is_preview = false; |
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} |
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} |
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if ( is_trackback() || is_search() || is_comments_popup() || is_admin() || is_preview() || is_robots() || ( $is_IIS && !iis7_supports_permalinks() ) ) { |
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return; |
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} |
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if ( !$requested_url ) { |
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// build the URL in the address bar |
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$requested_url = is_ssl() ? 'https://' : 'http://'; |
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$requested_url .= $_SERVER['HTTP_HOST']; |
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$requested_url .= $_SERVER['REQUEST_URI']; |
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} |
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$original = @parse_url($requested_url); |
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if ( false === $original ) |
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return; |
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// Some PHP setups turn requests for / into /index.php in REQUEST_URI |
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// See: https://core.trac.wordpress.org/ticket/5017 |
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// See: https://core.trac.wordpress.org/ticket/7173 |
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// Disabled, for now: |
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// $original['path'] = preg_replace('|/index\.php$|', '/', $original['path']); |
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$redirect = $original; |
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$redirect_url = false; |
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// Notice fixing |
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if ( !isset($redirect['path']) ) |
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$redirect['path'] = ''; |
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if ( !isset($redirect['query']) ) |
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$redirect['query'] = ''; |
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// If the original URL ended with non-breaking spaces, they were almost |
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// certainly inserted by accident. Let's remove them, so the reader doesn't |
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// see a 404 error with no obvious cause. |
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$redirect['path'] = preg_replace( '|(%C2%A0)+$|i', '', $redirect['path'] ); |
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// It's not a preview, so remove it from URL |
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if ( get_query_var( 'preview' ) ) { |
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$redirect['query'] = remove_query_arg( 'preview', $redirect['query'] ); |
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} |
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if ( is_feed() && ( $id = get_query_var( 'p' ) ) ) { |
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if ( $redirect_url = get_post_comments_feed_link( $id, get_query_var( 'feed' ) ) ) { |
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$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type', 'feed'), $redirect_url ); |
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$redirect['path'] = parse_url( $redirect_url, PHP_URL_PATH ); |
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} |
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} |
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if ( is_singular() && 1 > $wp_query->post_count && ($id = get_query_var('p')) ) { |
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$vars = $wpdb->get_results( $wpdb->prepare("SELECT post_type, post_parent FROM $wpdb->posts WHERE ID = %d", $id) ); |
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if ( isset($vars[0]) && $vars = $vars[0] ) { |
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if ( 'revision' == $vars->post_type && $vars->post_parent > 0 ) |
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$id = $vars->post_parent; |
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if ( $redirect_url = get_permalink($id) ) |
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$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ), $redirect_url ); |
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} |
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} |
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// These tests give us a WP-generated permalink |
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if ( is_404() ) { |
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// Redirect ?page_id, ?p=, ?attachment_id= to their respective url's |
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$id = max( get_query_var('p'), get_query_var('page_id'), get_query_var('attachment_id') ); |
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if ( $id && $redirect_post = get_post($id) ) { |
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$post_type_obj = get_post_type_object($redirect_post->post_type); |
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if ( $post_type_obj->public ) { |
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$redirect_url = get_permalink($redirect_post); |
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$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ), $redirect_url ); |
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} |
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} |
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if ( get_query_var( 'day' ) && get_query_var( 'monthnum' ) && get_query_var( 'year' ) ) { |
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$year = get_query_var( 'year' ); |
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$month = get_query_var( 'monthnum' ); |
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$day = get_query_var( 'day' ); |
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$date = sprintf( '%04d-%02d-%02d', $year, $month, $day ); |
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if ( ! wp_checkdate( $month, $day, $year, $date ) ) { |
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$redirect_url = get_month_link( $year, $month ); |
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$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'year', 'monthnum', 'day' ), $redirect_url ); |
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} |
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} elseif ( get_query_var( 'monthnum' ) && get_query_var( 'year' ) && 12 < get_query_var( 'monthnum' ) ) { |
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$redirect_url = get_year_link( get_query_var( 'year' ) ); |
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$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'year', 'monthnum' ), $redirect_url ); |
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} |
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if ( ! $redirect_url ) { |
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if ( $redirect_url = redirect_guess_404_permalink() ) { |
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$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'page', 'feed', 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ), $redirect_url ); |
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} |
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} |
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} elseif ( is_object($wp_rewrite) && $wp_rewrite->using_permalinks() ) { |
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// rewriting of old ?p=X, ?m=2004, ?m=200401, ?m=20040101 |
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if ( is_attachment() && !empty($_GET['attachment_id']) && ! $redirect_url ) { |
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if ( $redirect_url = get_attachment_link(get_query_var('attachment_id')) ) |
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$redirect['query'] = remove_query_arg('attachment_id', $redirect['query']); |
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} elseif ( is_single() && !empty($_GET['p']) && ! $redirect_url ) { |
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if ( $redirect_url = get_permalink(get_query_var('p')) ) |
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$redirect['query'] = remove_query_arg(array('p', 'post_type'), $redirect['query']); |
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} elseif ( is_single() && !empty($_GET['name']) && ! $redirect_url ) { |
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if ( $redirect_url = get_permalink( $wp_query->get_queried_object_id() ) ) |
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$redirect['query'] = remove_query_arg('name', $redirect['query']); |
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} elseif ( is_page() && !empty($_GET['page_id']) && ! $redirect_url ) { |
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if ( $redirect_url = get_permalink(get_query_var('page_id')) ) |
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$redirect['query'] = remove_query_arg('page_id', $redirect['query']); |
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} elseif ( is_page() && !is_feed() && isset($wp_query->queried_object) && 'page' == get_option('show_on_front') && $wp_query->queried_object->ID == get_option('page_on_front') && ! $redirect_url ) { |
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$redirect_url = home_url('/'); |
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} elseif ( is_home() && !empty($_GET['page_id']) && 'page' == get_option('show_on_front') && get_query_var('page_id') == get_option('page_for_posts') && ! $redirect_url ) { |
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if ( $redirect_url = get_permalink(get_option('page_for_posts')) ) |
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$redirect['query'] = remove_query_arg('page_id', $redirect['query']); |
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} elseif ( !empty($_GET['m']) && ( is_year() || is_month() || is_day() ) ) { |
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$m = get_query_var('m'); |
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switch ( strlen($m) ) { |
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case 4: // Yearly |
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$redirect_url = get_year_link($m); |
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break; |
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case 6: // Monthly |
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$redirect_url = get_month_link( substr($m, 0, 4), substr($m, 4, 2) ); |
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break; |
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case 8: // Daily |
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$redirect_url = get_day_link(substr($m, 0, 4), substr($m, 4, 2), substr($m, 6, 2)); |
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break; |
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} |
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if ( $redirect_url ) |
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$redirect['query'] = remove_query_arg('m', $redirect['query']); |
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// now moving on to non ?m=X year/month/day links |
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} elseif ( is_day() && get_query_var('year') && get_query_var('monthnum') && !empty($_GET['day']) ) { |
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if ( $redirect_url = get_day_link(get_query_var('year'), get_query_var('monthnum'), get_query_var('day')) ) |
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$redirect['query'] = remove_query_arg(array('year', 'monthnum', 'day'), $redirect['query']); |
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} elseif ( is_month() && get_query_var('year') && !empty($_GET['monthnum']) ) { |
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if ( $redirect_url = get_month_link(get_query_var('year'), get_query_var('monthnum')) ) |
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$redirect['query'] = remove_query_arg(array('year', 'monthnum'), $redirect['query']); |
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} elseif ( is_year() && !empty($_GET['year']) ) { |
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if ( $redirect_url = get_year_link(get_query_var('year')) ) |
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$redirect['query'] = remove_query_arg('year', $redirect['query']); |
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} elseif ( is_author() && !empty($_GET['author']) && preg_match( '|^[0-9]+$|', $_GET['author'] ) ) { |
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$author = get_userdata(get_query_var('author')); |
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if ( ( false !== $author ) && $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE $wpdb->posts.post_author = %d AND $wpdb->posts.post_status = 'publish' LIMIT 1", $author->ID ) ) ) { |
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if ( $redirect_url = get_author_posts_url($author->ID, $author->user_nicename) ) |
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$redirect['query'] = remove_query_arg('author', $redirect['query']); |
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} |
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} elseif ( is_category() || is_tag() || is_tax() ) { // Terms (Tags/categories) |
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$term_count = 0; |
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foreach ( $wp_query->tax_query->queried_terms as $tax_query ) |
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$term_count += count( $tax_query['terms'] ); |
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$obj = $wp_query->get_queried_object(); |
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if ( $term_count <= 1 && !empty($obj->term_id) && ( $tax_url = get_term_link((int)$obj->term_id, $obj->taxonomy) ) && !is_wp_error($tax_url) ) { |
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if ( !empty($redirect['query']) ) { |
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// Strip taxonomy query vars off the url. |
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$qv_remove = array( 'term', 'taxonomy'); |
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if ( is_category() ) { |
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$qv_remove[] = 'category_name'; |
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$qv_remove[] = 'cat'; |
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} elseif ( is_tag() ) { |
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$qv_remove[] = 'tag'; |
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$qv_remove[] = 'tag_id'; |
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} else { // Custom taxonomies will have a custom query var, remove those too: |
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$tax_obj = get_taxonomy( $obj->taxonomy ); |
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if ( false !== $tax_obj->query_var ) |
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$qv_remove[] = $tax_obj->query_var; |
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} |
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$rewrite_vars = array_diff( array_keys($wp_query->query), array_keys($_GET) ); |
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if ( !array_diff($rewrite_vars, array_keys($_GET)) ) { // Check to see if all the Query vars are coming from the rewrite, none are set via $_GET |
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$redirect['query'] = remove_query_arg($qv_remove, $redirect['query']); //Remove all of the per-tax qv's |
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// Create the destination url for this taxonomy |
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$tax_url = parse_url($tax_url); |
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if ( ! empty($tax_url['query']) ) { // Taxonomy accessible via ?taxonomy=..&term=.. or any custom qv.. |
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parse_str($tax_url['query'], $query_vars); |
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$redirect['query'] = add_query_arg($query_vars, $redirect['query']); |
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} else { // Taxonomy is accessible via a "pretty-URL" |
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$redirect['path'] = $tax_url['path']; |
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} |
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} else { // Some query vars are set via $_GET. Unset those from $_GET that exist via the rewrite |
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foreach ( $qv_remove as $_qv ) { |
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if ( isset($rewrite_vars[$_qv]) ) |
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$redirect['query'] = remove_query_arg($_qv, $redirect['query']); |
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} |
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} |
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} |
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} |
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} elseif ( is_single() && strpos($wp_rewrite->permalink_structure, '%category%') !== false && $cat = get_query_var( 'category_name' ) ) { |
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$category = get_category_by_path( $cat ); |
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$post_terms = wp_get_object_terms($wp_query->get_queried_object_id(), 'category', array('fields' => 'tt_ids')); |
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if ( (!$category || is_wp_error($category)) || ( !is_wp_error($post_terms) && !empty($post_terms) && !in_array($category->term_taxonomy_id, $post_terms) ) ) |
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$redirect_url = get_permalink($wp_query->get_queried_object_id()); |
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} |
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// Post Paging |
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if ( is_singular() && ! is_front_page() && get_query_var('page') ) { |
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if ( !$redirect_url ) |
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$redirect_url = get_permalink( get_queried_object_id() ); |
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$redirect_url = trailingslashit( $redirect_url ) . user_trailingslashit( get_query_var( 'page' ), 'single_paged' ); |
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$redirect['query'] = remove_query_arg( 'page', $redirect['query'] ); |
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} |
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// paging and feeds |
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if ( get_query_var('paged') || is_feed() || get_query_var('cpage') ) { |
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while ( preg_match( "#/$wp_rewrite->pagination_base/?[0-9]+?(/+)?$#", $redirect['path'] ) || preg_match( '#/(comments/?)?(feed|rss|rdf|atom|rss2)(/+)?$#', $redirect['path'] ) || preg_match( "#/{$wp_rewrite->comments_pagination_base}-[0-9]+(/+)?$#", $redirect['path'] ) ) { |
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// Strip off paging and feed |
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$redirect['path'] = preg_replace("#/$wp_rewrite->pagination_base/?[0-9]+?(/+)?$#", '/', $redirect['path']); // strip off any existing paging |
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$redirect['path'] = preg_replace('#/(comments/?)?(feed|rss2?|rdf|atom)(/+|$)#', '/', $redirect['path']); // strip off feed endings |
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$redirect['path'] = preg_replace("#/{$wp_rewrite->comments_pagination_base}-[0-9]+?(/+)?$#", '/', $redirect['path']); // strip off any existing comment paging |
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} |
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$addl_path = ''; |
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if ( is_feed() && in_array( get_query_var('feed'), $wp_rewrite->feeds ) ) { |
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$addl_path = !empty( $addl_path ) ? trailingslashit($addl_path) : ''; |
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if ( !is_singular() && get_query_var( 'withcomments' ) ) |
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$addl_path .= 'comments/'; |
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if ( ( 'rss' == get_default_feed() && 'feed' == get_query_var('feed') ) || 'rss' == get_query_var('feed') ) |
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$addl_path .= user_trailingslashit( 'feed/' . ( ( get_default_feed() == 'rss2' ) ? '' : 'rss2' ), 'feed' ); |
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else |
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$addl_path .= user_trailingslashit( 'feed/' . ( ( get_default_feed() == get_query_var('feed') || 'feed' == get_query_var('feed') ) ? '' : get_query_var('feed') ), 'feed' ); |
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$redirect['query'] = remove_query_arg( 'feed', $redirect['query'] ); |
|
|
279 |
} elseif ( is_feed() && 'old' == get_query_var('feed') ) { |
|
|
280 |
$old_feed_files = array( |
|
|
281 |
'wp-atom.php' => 'atom', |
|
|
282 |
'wp-commentsrss2.php' => 'comments_rss2', |
|
|
283 |
'wp-feed.php' => get_default_feed(), |
|
|
284 |
'wp-rdf.php' => 'rdf', |
|
|
285 |
'wp-rss.php' => 'rss2', |
|
|
286 |
'wp-rss2.php' => 'rss2', |
|
|
287 |
); |
|
|
288 |
if ( isset( $old_feed_files[ basename( $redirect['path'] ) ] ) ) { |
|
|
289 |
$redirect_url = get_feed_link( $old_feed_files[ basename( $redirect['path'] ) ] ); |
|
|
290 |
wp_redirect( $redirect_url, 301 ); |
|
|
291 |
die(); |
|
|
292 |
} |
|
|
293 |
} |
|
|
294 |
|
|
|
295 |
if ( get_query_var('paged') > 0 ) { |
|
|
296 |
$paged = get_query_var('paged'); |
|
|
297 |
$redirect['query'] = remove_query_arg( 'paged', $redirect['query'] ); |
|
|
298 |
if ( !is_feed() ) { |
|
|
299 |
if ( $paged > 1 && !is_single() ) { |
|
|
300 |
$addl_path = ( !empty( $addl_path ) ? trailingslashit($addl_path) : '' ) . user_trailingslashit("$wp_rewrite->pagination_base/$paged", 'paged'); |
|
|
301 |
} elseif ( !is_single() ) { |
|
|
302 |
$addl_path = !empty( $addl_path ) ? trailingslashit($addl_path) : ''; |
|
|
303 |
} |
|
|
304 |
} elseif ( $paged > 1 ) { |
|
|
305 |
$redirect['query'] = add_query_arg( 'paged', $paged, $redirect['query'] ); |
|
|
306 |
} |
|
|
307 |
} |
|
|
308 |
|
|
|
309 |
if ( get_option('page_comments') && ( ( 'newest' == get_option('default_comments_page') && get_query_var('cpage') > 0 ) || ( 'newest' != get_option('default_comments_page') && get_query_var('cpage') > 1 ) ) ) { |
|
5
|
310 |
$addl_path = ( !empty( $addl_path ) ? trailingslashit($addl_path) : '' ) . user_trailingslashit( $wp_rewrite->comments_pagination_base . '-' . get_query_var('cpage'), 'commentpaged' ); |
|
0
|
311 |
$redirect['query'] = remove_query_arg( 'cpage', $redirect['query'] ); |
|
|
312 |
} |
|
|
313 |
|
|
|
314 |
$redirect['path'] = user_trailingslashit( preg_replace('|/' . preg_quote( $wp_rewrite->index, '|' ) . '/?$|', '/', $redirect['path']) ); // strip off trailing /index.php/ |
|
|
315 |
if ( !empty( $addl_path ) && $wp_rewrite->using_index_permalinks() && strpos($redirect['path'], '/' . $wp_rewrite->index . '/') === false ) |
|
|
316 |
$redirect['path'] = trailingslashit($redirect['path']) . $wp_rewrite->index . '/'; |
|
|
317 |
if ( !empty( $addl_path ) ) |
|
|
318 |
$redirect['path'] = trailingslashit($redirect['path']) . $addl_path; |
|
|
319 |
$redirect_url = $redirect['scheme'] . '://' . $redirect['host'] . $redirect['path']; |
|
|
320 |
} |
|
|
321 |
|
|
|
322 |
if ( 'wp-register.php' == basename( $redirect['path'] ) ) { |
|
5
|
323 |
if ( is_multisite() ) { |
|
0
|
324 |
/** This filter is documented in wp-login.php */ |
|
|
325 |
$redirect_url = apply_filters( 'wp_signup_location', network_site_url( 'wp-signup.php' ) ); |
|
5
|
326 |
} else { |
|
0
|
327 |
$redirect_url = site_url( 'wp-login.php?action=register' ); |
|
5
|
328 |
} |
|
|
329 |
|
|
0
|
330 |
wp_redirect( $redirect_url, 301 ); |
|
|
331 |
die(); |
|
|
332 |
} |
|
|
333 |
} |
|
|
334 |
|
|
|
335 |
// tack on any additional query vars |
|
|
336 |
$redirect['query'] = preg_replace( '#^\??&*?#', '', $redirect['query'] ); |
|
|
337 |
if ( $redirect_url && !empty($redirect['query']) ) { |
|
|
338 |
parse_str( $redirect['query'], $_parsed_query ); |
|
|
339 |
$redirect = @parse_url($redirect_url); |
|
|
340 |
|
|
|
341 |
if ( ! empty( $_parsed_query['name'] ) && ! empty( $redirect['query'] ) ) { |
|
|
342 |
parse_str( $redirect['query'], $_parsed_redirect_query ); |
|
|
343 |
|
|
|
344 |
if ( empty( $_parsed_redirect_query['name'] ) ) |
|
|
345 |
unset( $_parsed_query['name'] ); |
|
|
346 |
} |
|
|
347 |
|
|
|
348 |
$_parsed_query = rawurlencode_deep( $_parsed_query ); |
|
|
349 |
$redirect_url = add_query_arg( $_parsed_query, $redirect_url ); |
|
|
350 |
} |
|
|
351 |
|
|
|
352 |
if ( $redirect_url ) |
|
|
353 |
$redirect = @parse_url($redirect_url); |
|
|
354 |
|
|
|
355 |
// www.example.com vs example.com |
|
|
356 |
$user_home = @parse_url(home_url()); |
|
|
357 |
if ( !empty($user_home['host']) ) |
|
|
358 |
$redirect['host'] = $user_home['host']; |
|
|
359 |
if ( empty($user_home['path']) ) |
|
|
360 |
$user_home['path'] = '/'; |
|
|
361 |
|
|
|
362 |
// Handle ports |
|
|
363 |
if ( !empty($user_home['port']) ) |
|
|
364 |
$redirect['port'] = $user_home['port']; |
|
|
365 |
else |
|
|
366 |
unset($redirect['port']); |
|
|
367 |
|
|
|
368 |
// trailing /index.php |
|
|
369 |
$redirect['path'] = preg_replace('|/' . preg_quote( $wp_rewrite->index, '|' ) . '/*?$|', '/', $redirect['path']); |
|
|
370 |
|
|
|
371 |
// Remove trailing spaces from the path |
|
|
372 |
$redirect['path'] = preg_replace( '#(%20| )+$#', '', $redirect['path'] ); |
|
|
373 |
|
|
|
374 |
if ( !empty( $redirect['query'] ) ) { |
|
|
375 |
// Remove trailing spaces from certain terminating query string args |
|
|
376 |
$redirect['query'] = preg_replace( '#((p|page_id|cat|tag)=[^&]*?)(%20| )+$#', '$1', $redirect['query'] ); |
|
|
377 |
|
|
|
378 |
// Clean up empty query strings |
|
|
379 |
$redirect['query'] = trim(preg_replace( '#(^|&)(p|page_id|cat|tag)=?(&|$)#', '&', $redirect['query']), '&'); |
|
|
380 |
|
|
|
381 |
// Redirect obsolete feeds |
|
|
382 |
$redirect['query'] = preg_replace( '#(^|&)feed=rss(&|$)#', '$1feed=rss2$2', $redirect['query'] ); |
|
|
383 |
|
|
|
384 |
// Remove redundant leading ampersands |
|
|
385 |
$redirect['query'] = preg_replace( '#^\??&*?#', '', $redirect['query'] ); |
|
|
386 |
} |
|
|
387 |
|
|
|
388 |
// strip /index.php/ when we're not using PATHINFO permalinks |
|
|
389 |
if ( !$wp_rewrite->using_index_permalinks() ) |
|
|
390 |
$redirect['path'] = str_replace( '/' . $wp_rewrite->index . '/', '/', $redirect['path'] ); |
|
|
391 |
|
|
|
392 |
// trailing slashes |
|
|
393 |
if ( is_object($wp_rewrite) && $wp_rewrite->using_permalinks() && !is_404() && (!is_front_page() || ( is_front_page() && (get_query_var('paged') > 1) ) ) ) { |
|
|
394 |
$user_ts_type = ''; |
|
|
395 |
if ( get_query_var('paged') > 0 ) { |
|
|
396 |
$user_ts_type = 'paged'; |
|
|
397 |
} else { |
|
|
398 |
foreach ( array('single', 'category', 'page', 'day', 'month', 'year', 'home') as $type ) { |
|
|
399 |
$func = 'is_' . $type; |
|
|
400 |
if ( call_user_func($func) ) { |
|
|
401 |
$user_ts_type = $type; |
|
|
402 |
break; |
|
|
403 |
} |
|
|
404 |
} |
|
|
405 |
} |
|
|
406 |
$redirect['path'] = user_trailingslashit($redirect['path'], $user_ts_type); |
|
|
407 |
} elseif ( is_front_page() ) { |
|
|
408 |
$redirect['path'] = trailingslashit($redirect['path']); |
|
|
409 |
} |
|
|
410 |
|
|
|
411 |
// Strip multiple slashes out of the URL |
|
|
412 |
if ( strpos($redirect['path'], '//') > -1 ) |
|
|
413 |
$redirect['path'] = preg_replace('|/+|', '/', $redirect['path']); |
|
|
414 |
|
|
|
415 |
// Always trailing slash the Front Page URL |
|
|
416 |
if ( trailingslashit( $redirect['path'] ) == trailingslashit( $user_home['path'] ) ) |
|
|
417 |
$redirect['path'] = trailingslashit($redirect['path']); |
|
|
418 |
|
|
|
419 |
// Ignore differences in host capitalization, as this can lead to infinite redirects |
|
|
420 |
// Only redirect no-www <=> yes-www |
|
|
421 |
if ( strtolower($original['host']) == strtolower($redirect['host']) || |
|
|
422 |
( strtolower($original['host']) != 'www.' . strtolower($redirect['host']) && 'www.' . strtolower($original['host']) != strtolower($redirect['host']) ) ) |
|
|
423 |
$redirect['host'] = $original['host']; |
|
|
424 |
|
|
5
|
425 |
$compare_original = array( $original['host'], $original['path'] ); |
|
0
|
426 |
|
|
|
427 |
if ( !empty( $original['port'] ) ) |
|
|
428 |
$compare_original[] = $original['port']; |
|
|
429 |
|
|
|
430 |
if ( !empty( $original['query'] ) ) |
|
|
431 |
$compare_original[] = $original['query']; |
|
|
432 |
|
|
5
|
433 |
$compare_redirect = array( $redirect['host'], $redirect['path'] ); |
|
0
|
434 |
|
|
|
435 |
if ( !empty( $redirect['port'] ) ) |
|
|
436 |
$compare_redirect[] = $redirect['port']; |
|
|
437 |
|
|
|
438 |
if ( !empty( $redirect['query'] ) ) |
|
|
439 |
$compare_redirect[] = $redirect['query']; |
|
|
440 |
|
|
|
441 |
if ( $compare_original !== $compare_redirect ) { |
|
|
442 |
$redirect_url = $redirect['scheme'] . '://' . $redirect['host']; |
|
|
443 |
if ( !empty($redirect['port']) ) |
|
|
444 |
$redirect_url .= ':' . $redirect['port']; |
|
|
445 |
$redirect_url .= $redirect['path']; |
|
|
446 |
if ( !empty($redirect['query']) ) |
|
|
447 |
$redirect_url .= '?' . $redirect['query']; |
|
|
448 |
} |
|
|
449 |
|
|
|
450 |
if ( !$redirect_url || $redirect_url == $requested_url ) |
|
|
451 |
return false; |
|
|
452 |
|
|
|
453 |
// Hex encoded octets are case-insensitive. |
|
|
454 |
if ( false !== strpos($requested_url, '%') ) { |
|
|
455 |
if ( !function_exists('lowercase_octets') ) { |
|
|
456 |
function lowercase_octets($matches) { |
|
|
457 |
return strtolower( $matches[0] ); |
|
|
458 |
} |
|
|
459 |
} |
|
|
460 |
$requested_url = preg_replace_callback('|%[a-fA-F0-9][a-fA-F0-9]|', 'lowercase_octets', $requested_url); |
|
|
461 |
} |
|
|
462 |
|
|
|
463 |
/** |
|
|
464 |
* Filter the canonical redirect URL. |
|
|
465 |
* |
|
|
466 |
* Returning false to this filter will cancel the redirect. |
|
|
467 |
* |
|
|
468 |
* @since 2.3.0 |
|
|
469 |
* |
|
|
470 |
* @param string $redirect_url The redirect URL. |
|
|
471 |
* @param string $requested_url The requested URL. |
|
|
472 |
*/ |
|
|
473 |
$redirect_url = apply_filters( 'redirect_canonical', $redirect_url, $requested_url ); |
|
|
474 |
|
|
|
475 |
if ( !$redirect_url || $redirect_url == $requested_url ) // yes, again -- in case the filter aborted the request |
|
|
476 |
return false; |
|
|
477 |
|
|
|
478 |
if ( $do_redirect ) { |
|
|
479 |
// protect against chained redirects |
|
|
480 |
if ( !redirect_canonical($redirect_url, false) ) { |
|
|
481 |
wp_redirect($redirect_url, 301); |
|
|
482 |
exit(); |
|
|
483 |
} else { |
|
|
484 |
// Debug |
|
|
485 |
// die("1: $redirect_url<br />2: " . redirect_canonical( $redirect_url, false ) ); |
|
|
486 |
return false; |
|
|
487 |
} |
|
|
488 |
} else { |
|
|
489 |
return $redirect_url; |
|
|
490 |
} |
|
|
491 |
} |
|
|
492 |
|
|
|
493 |
/** |
|
|
494 |
* Removes arguments from a query string if they are not present in a URL |
|
|
495 |
* DO NOT use this in plugin code. |
|
|
496 |
* |
|
5
|
497 |
* @since 3.4.0 |
|
0
|
498 |
* @access private |
|
|
499 |
* |
|
5
|
500 |
* @param string $query_string |
|
|
501 |
* @param array $args_to_check |
|
|
502 |
* @param string $url |
|
0
|
503 |
* @return string The altered query string |
|
|
504 |
*/ |
|
|
505 |
function _remove_qs_args_if_not_in_url( $query_string, Array $args_to_check, $url ) { |
|
|
506 |
$parsed_url = @parse_url( $url ); |
|
|
507 |
if ( ! empty( $parsed_url['query'] ) ) { |
|
|
508 |
parse_str( $parsed_url['query'], $parsed_query ); |
|
|
509 |
foreach ( $args_to_check as $qv ) { |
|
|
510 |
if ( !isset( $parsed_query[$qv] ) ) |
|
|
511 |
$query_string = remove_query_arg( $qv, $query_string ); |
|
|
512 |
} |
|
|
513 |
} else { |
|
|
514 |
$query_string = remove_query_arg( $args_to_check, $query_string ); |
|
|
515 |
} |
|
|
516 |
return $query_string; |
|
|
517 |
} |
|
|
518 |
|
|
|
519 |
/** |
|
|
520 |
* Attempts to guess the correct URL based on query vars |
|
|
521 |
* |
|
|
522 |
* @since 2.3.0 |
|
5
|
523 |
* |
|
|
524 |
* @global wpdb $wpdb WordPress database abstraction object. |
|
0
|
525 |
* |
|
|
526 |
* @return bool|string The correct URL if one is found. False on failure. |
|
|
527 |
*/ |
|
|
528 |
function redirect_guess_404_permalink() { |
|
|
529 |
global $wpdb, $wp_rewrite; |
|
|
530 |
|
|
|
531 |
if ( get_query_var('name') ) { |
|
5
|
532 |
$where = $wpdb->prepare("post_name LIKE %s", $wpdb->esc_like( get_query_var('name') ) . '%'); |
|
0
|
533 |
|
|
|
534 |
// if any of post_type, year, monthnum, or day are set, use them to refine the query |
|
|
535 |
if ( get_query_var('post_type') ) |
|
|
536 |
$where .= $wpdb->prepare(" AND post_type = %s", get_query_var('post_type')); |
|
|
537 |
else |
|
|
538 |
$where .= " AND post_type IN ('" . implode( "', '", get_post_types( array( 'public' => true ) ) ) . "')"; |
|
|
539 |
|
|
|
540 |
if ( get_query_var('year') ) |
|
|
541 |
$where .= $wpdb->prepare(" AND YEAR(post_date) = %d", get_query_var('year')); |
|
|
542 |
if ( get_query_var('monthnum') ) |
|
|
543 |
$where .= $wpdb->prepare(" AND MONTH(post_date) = %d", get_query_var('monthnum')); |
|
|
544 |
if ( get_query_var('day') ) |
|
|
545 |
$where .= $wpdb->prepare(" AND DAYOFMONTH(post_date) = %d", get_query_var('day')); |
|
|
546 |
|
|
|
547 |
$post_id = $wpdb->get_var("SELECT ID FROM $wpdb->posts WHERE $where AND post_status = 'publish'"); |
|
|
548 |
if ( ! $post_id ) |
|
|
549 |
return false; |
|
|
550 |
if ( get_query_var( 'feed' ) ) |
|
|
551 |
return get_post_comments_feed_link( $post_id, get_query_var( 'feed' ) ); |
|
|
552 |
elseif ( get_query_var( 'page' ) ) |
|
|
553 |
return trailingslashit( get_permalink( $post_id ) ) . user_trailingslashit( get_query_var( 'page' ), 'single_paged' ); |
|
|
554 |
else |
|
|
555 |
return get_permalink( $post_id ); |
|
|
556 |
} |
|
|
557 |
|
|
|
558 |
return false; |
|
|
559 |
} |
|
|
560 |
|
|
|
561 |
function wp_redirect_admin_locations() { |
|
|
562 |
global $wp_rewrite; |
|
|
563 |
if ( ! ( is_404() && $wp_rewrite->using_permalinks() ) ) |
|
|
564 |
return; |
|
|
565 |
|
|
|
566 |
$admins = array( |
|
|
567 |
home_url( 'wp-admin', 'relative' ), |
|
|
568 |
home_url( 'dashboard', 'relative' ), |
|
|
569 |
home_url( 'admin', 'relative' ), |
|
|
570 |
site_url( 'dashboard', 'relative' ), |
|
|
571 |
site_url( 'admin', 'relative' ), |
|
|
572 |
); |
|
|
573 |
if ( in_array( untrailingslashit( $_SERVER['REQUEST_URI'] ), $admins ) ) { |
|
|
574 |
wp_redirect( admin_url() ); |
|
|
575 |
exit; |
|
|
576 |
} |
|
|
577 |
|
|
|
578 |
$logins = array( |
|
|
579 |
home_url( 'wp-login.php', 'relative' ), |
|
|
580 |
home_url( 'login', 'relative' ), |
|
|
581 |
site_url( 'login', 'relative' ), |
|
|
582 |
); |
|
|
583 |
if ( in_array( untrailingslashit( $_SERVER['REQUEST_URI'] ), $logins ) ) { |
|
|
584 |
wp_redirect( site_url( 'wp-login.php', 'login' ) ); |
|
|
585 |
exit; |
|
|
586 |
} |
|
|
587 |
} |