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admin-bar.php
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class-wp-dependency.php
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class-wp-fatal-error-handler.php
class-wp-feed-cache-transient.php
class-wp-feed-cache.php
class-wp-hook.php
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class-wp-http-streams.php
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class-wp-image-editor.php
class-wp-list-util.php
class-wp-locale-switcher.php
class-wp-locale.php
class-wp-matchesmapregex.php
class-wp-meta-query.php
class-wp-metadata-lazyloader.php
class-wp-network-query.php
class-wp-network.php
class-wp-oembed-controller.php
class-wp-oembed.php
class-wp-paused-extensions-storage.php
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class-wp-query.php
class-wp-recovery-mode-cookie-service.php
class-wp-recovery-mode-email-service.php
class-wp-recovery-mode-key-service.php
class-wp-recovery-mode-link-service.php
class-wp-recovery-mode.php
class-wp-rewrite.php
class-wp-role.php
class-wp-roles.php
class-wp-session-tokens.php
class-wp-simplepie-file.php
class-wp-simplepie-sanitize-kses.php
class-wp-site-query.php
class-wp-site.php
class-wp-tax-query.php
class-wp-taxonomy.php
class-wp-term-query.php
class-wp-term.php
class-wp-text-diff-renderer-inline.php
class-wp-text-diff-renderer-table.php
class-wp-theme.php
class-wp-user-meta-session-tokens.php
class-wp-user-query.php
class-wp-user-request.php
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class-wp-walker.php
class-wp-widget-factory.php
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class.wp-scripts.php
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comment-template.php
comment.php
compat.php
cron.php
date.php
default-constants.php
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default-widgets.php
deprecated.php
embed-template.php
embed.php
error-protection.php
feed-atom-comments.php
feed-atom.php
feed-rdf.php
feed-rss.php
feed-rss2-comments.php
feed-rss2.php
feed.php
formatting.php
functions.php
functions.wp-scripts.php
functions.wp-styles.php
general-template.php
http.php
kses.php
l10n.php
link-template.php
load.php
locale.php
media-template.php
media.php
meta.php
ms-blogs.php
ms-default-constants.php
ms-default-filters.php
ms-deprecated.php
ms-files.php
ms-functions.php
ms-load.php
ms-network.php
ms-settings.php
ms-site.php
nav-menu-template.php
nav-menu.php
option.php
pluggable-deprecated.php
pluggable.php
plugin.php
post-formats.php
post-template.php
post-thumbnail-template.php
post.php
query.php
registration-functions.php
registration.php
rest-api.php
revision.php
rewrite.php
rss-functions.php
rss.php
script-loader.php
session.php
shortcodes.php
spl-autoload-compat.php
taxonomy.php
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template.php
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update.php
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Edit File: canonical.php
<?php /** * Canonical API to handle WordPress Redirecting * * Based on "Permalink Redirect" from Scott Yang and "Enforce www. Preference" * by Mark Jaquith * * @package WordPress * @since 2.3.0 */ /** * Redirects incoming links to the proper URL based on the site url. * * Search engines consider www.somedomain.com and somedomain.com to be two * different URLs when they both go to the same location. This SEO enhancement * prevents penalty for duplicate content by redirecting all incoming links to * one or the other. * * Prevents redirection for feeds, trackbacks, searches, and * admin URLs. Does not redirect on non-pretty-permalink-supporting IIS 7+, * page/post previews, WP admin, Trackbacks, robots.txt, searches, or on POST * requests. * * Will also attempt to find the correct link when a user enters a URL that does * not exist based on exact WordPress query. Will instead try to parse the URL * or query in an attempt to figure the correct page to go to. * * @since 2.3.0 * * @global WP_Rewrite $wp_rewrite WordPress rewrite component. * @global bool $is_IIS * @global WP_Query $wp_query WordPress Query object. * @global wpdb $wpdb WordPress database abstraction object. * @global WP $wp Current WordPress environment instance. * * @param string $requested_url Optional. The URL that was requested, used to * figure if redirect is needed. * @param bool $do_redirect Optional. Redirect to the new URL. * @return string|void The string of the URL, if redirect needed. */ function redirect_canonical( $requested_url = null, $do_redirect = true ) { global $wp_rewrite, $is_IIS, $wp_query, $wpdb, $wp; if ( isset( $_SERVER['REQUEST_METHOD'] ) && ! in_array( strtoupper( $_SERVER['REQUEST_METHOD'] ), array( 'GET', 'HEAD' ) ) ) { return; } // If we're not in wp-admin and the post has been published and preview nonce // is non-existent or invalid then no need for preview in query if ( is_preview() && get_query_var( 'p' ) && 'publish' == get_post_status( get_query_var( 'p' ) ) ) { if ( ! isset( $_GET['preview_id'] ) || ! isset( $_GET['preview_nonce'] ) || ! wp_verify_nonce( $_GET['preview_nonce'], 'post_preview_' . (int) $_GET['preview_id'] ) ) { $wp_query->is_preview = false; } } if ( is_trackback() || is_search() || is_admin() || is_preview() || is_robots() || ( $is_IIS && ! iis7_supports_permalinks() ) ) { return; } if ( ! $requested_url && isset( $_SERVER['HTTP_HOST'] ) ) { // build the URL in the address bar $requested_url = is_ssl() ? 'https://' : 'http://'; $requested_url .= $_SERVER['HTTP_HOST']; $requested_url .= $_SERVER['REQUEST_URI']; } $original = @parse_url( $requested_url ); if ( false === $original ) { return; } $redirect = $original; $redirect_url = false; // Notice fixing if ( ! isset( $redirect['path'] ) ) { $redirect['path'] = ''; } if ( ! isset( $redirect['query'] ) ) { $redirect['query'] = ''; } // If the original URL ended with non-breaking spaces, they were almost // certainly inserted by accident. Let's remove them, so the reader doesn't // see a 404 error with no obvious cause. $redirect['path'] = preg_replace( '|(%C2%A0)+$|i', '', $redirect['path'] ); // It's not a preview, so remove it from URL if ( get_query_var( 'preview' ) ) { $redirect['query'] = remove_query_arg( 'preview', $redirect['query'] ); } $id = get_query_var( 'p' ); if ( is_feed() && $id ) { $redirect_url = get_post_comments_feed_link( $id, get_query_var( 'feed' ) ); if ( $redirect_url ) { $redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type', 'feed' ), $redirect_url ); $redirect['path'] = parse_url( $redirect_url, PHP_URL_PATH ); } } if ( is_singular() && 1 > $wp_query->post_count && $id ) { $vars = $wpdb->get_results( $wpdb->prepare( "SELECT post_type, post_parent FROM $wpdb->posts WHERE ID = %d", $id ) ); if ( ! empty( $vars[0] ) ) { $vars = $vars[0]; if ( 'revision' == $vars->post_type && $vars->post_parent > 0 ) { $id = $vars->post_parent; } $redirect_url = get_permalink( $id ); if ( $redirect_url ) { $redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ), $redirect_url ); } } } // These tests give us a WP-generated permalink if ( is_404() ) { // Redirect ?page_id, ?p=, ?attachment_id= to their respective url's $id = max( get_query_var( 'p' ), get_query_var( 'page_id' ), get_query_var( 'attachment_id' ) ); $redirect_post = $id ? get_post( $id ) : false; if ( $redirect_post ) { $post_type_obj = get_post_type_object( $redirect_post->post_type ); if ( $post_type_obj->public && 'auto-draft' != $redirect_post->post_status ) { $redirect_url = get_permalink( $redirect_post ); $redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ), $redirect_url ); } } if ( get_query_var( 'day' ) && get_query_var( 'monthnum' ) && get_query_var( 'year' ) ) { $year = get_query_var( 'year' ); $month = get_query_var( 'monthnum' ); $day = get_query_var( 'day' ); $date = sprintf( '%04d-%02d-%02d', $year, $month, $day ); if ( ! wp_checkdate( $month, $day, $year, $date ) ) { $redirect_url = get_month_link( $year, $month ); $redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'year', 'monthnum', 'day' ), $redirect_url ); } } elseif ( get_query_var( 'monthnum' ) && get_query_var( 'year' ) && 12 < get_query_var( 'monthnum' ) ) { $redirect_url = get_year_link( get_query_var( 'year' ) ); $redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'year', 'monthnum' ), $redirect_url ); } if ( ! $redirect_url ) { $redirect_url = redirect_guess_404_permalink(); if ( $redirect_url ) { $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 ); } } if ( get_query_var( 'page' ) && $wp_query->post && false !== strpos( $wp_query->post->post_content, '<!--nextpage-->' ) ) { $redirect['path'] = rtrim( $redirect['path'], (int) get_query_var( 'page' ) . '/' ); $redirect['query'] = remove_query_arg( 'page', $redirect['query'] ); $redirect_url = get_permalink( $wp_query->post->ID ); } } elseif ( is_object( $wp_rewrite ) && $wp_rewrite->using_permalinks() ) { // rewriting of old ?p=X, ?m=2004, ?m=200401, ?m=20040101 if ( is_attachment() && ! array_diff( array_keys( $wp->query_vars ), array( 'attachment', 'attachment_id' ) ) && ! $redirect_url ) { if ( ! empty( $_GET['attachment_id'] ) ) { $redirect_url = get_attachment_link( get_query_var( 'attachment_id' ) ); if ( $redirect_url ) { $redirect['query'] = remove_query_arg( 'attachment_id', $redirect['query'] ); } } else { $redirect_url = get_attachment_link(); } } elseif ( is_single() && ! empty( $_GET['p'] ) && ! $redirect_url ) { $redirect_url = get_permalink( get_query_var( 'p' ) ); if ( $redirect_url ) { $redirect['query'] = remove_query_arg( array( 'p', 'post_type' ), $redirect['query'] ); } } elseif ( is_single() && ! empty( $_GET['name'] ) && ! $redirect_url ) { $redirect_url = get_permalink( $wp_query->get_queried_object_id() ); if ( $redirect_url ) { $redirect['query'] = remove_query_arg( 'name', $redirect['query'] ); } } elseif ( is_page() && ! empty( $_GET['page_id'] ) && ! $redirect_url ) { $redirect_url = get_permalink( get_query_var( 'page_id' ) ); if ( $redirect_url ) { $redirect['query'] = remove_query_arg( 'page_id', $redirect['query'] ); } } elseif ( is_page() && ! is_feed() && 'page' == get_option( 'show_on_front' ) && get_queried_object_id() == get_option( 'page_on_front' ) && ! $redirect_url ) { $redirect_url = home_url( '/' ); } 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 ) { $redirect_url = get_permalink( get_option( 'page_for_posts' ) ); if ( $redirect_url ) { $redirect['query'] = remove_query_arg( 'page_id', $redirect['query'] ); } } elseif ( ! empty( $_GET['m'] ) && ( is_year() || is_month() || is_day() ) ) { $m = get_query_var( 'm' ); switch ( strlen( $m ) ) { case 4: // Yearly $redirect_url = get_year_link( $m ); break; case 6: // Monthly $redirect_url = get_month_link( substr( $m, 0, 4 ), substr( $m, 4, 2 ) ); break; case 8: // Daily $redirect_url = get_day_link( substr( $m, 0, 4 ), substr( $m, 4, 2 ), substr( $m, 6, 2 ) ); break; } if ( $redirect_url ) { $redirect['query'] = remove_query_arg( 'm', $redirect['query'] ); } // now moving on to non ?m=X year/month/day links } elseif ( is_day() && get_query_var( 'year' ) && get_query_var( 'monthnum' ) && ! empty( $_GET['day'] ) ) { $redirect_url = get_day_link( get_query_var( 'year' ), get_query_var( 'monthnum' ), get_query_var( 'day' ) ); if ( $redirect_url ) { $redirect['query'] = remove_query_arg( array( 'year', 'monthnum', 'day' ), $redirect['query'] ); } } elseif ( is_month() && get_query_var( 'year' ) && ! empty( $_GET['monthnum'] ) ) { $redirect_url = get_month_link( get_query_var( 'year' ), get_query_var( 'monthnum' ) ); if ( $redirect_url ) { $redirect['query'] = remove_query_arg( array( 'year', 'monthnum' ), $redirect['query'] ); } } elseif ( is_year() && ! empty( $_GET['year'] ) ) { $redirect_url = get_year_link( get_query_var( 'year' ) ); if ( $redirect_url ) { $redirect['query'] = remove_query_arg( 'year', $redirect['query'] ); } } elseif ( is_author() && ! empty( $_GET['author'] ) && preg_match( '|^[0-9]+$|', $_GET['author'] ) ) { $author = get_userdata( get_query_var( 'author' ) ); 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 ) ) ) { $redirect_url = get_author_posts_url( $author->ID, $author->user_nicename ); if ( $redirect_url ) { $redirect['query'] = remove_query_arg( 'author', $redirect['query'] ); } } } elseif ( is_category() || is_tag() || is_tax() ) { // Terms (Tags/categories) $term_count = 0; foreach ( $wp_query->tax_query->queried_terms as $tax_query ) { $term_count += count( $tax_query['terms'] ); } $obj = $wp_query->get_queried_object(); if ( $term_count <= 1 && ! empty( $obj->term_id ) ) { $tax_url = get_term_link( (int) $obj->term_id, $obj->taxonomy ); if ( $tax_url && ! is_wp_error( $tax_url ) ) { if ( ! empty( $redirect['query'] ) ) { // Strip taxonomy query vars off the url. $qv_remove = array( 'term', 'taxonomy' ); if ( is_category() ) { $qv_remove[] = 'category_name'; $qv_remove[] = 'cat'; } elseif ( is_tag() ) { $qv_remove[] = 'tag'; $qv_remove[] = 'tag_id'; } else { // Custom taxonomies will have a custom query var, remove those too: $tax_obj = get_taxonomy( $obj->taxonomy ); if ( false !== $tax_obj->query_var ) { $qv_remove[] = $tax_obj->query_var; } } $rewrite_vars = array_diff( array_keys( $wp_query->query ), array_keys( $_GET ) ); 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 $redirect['query'] = remove_query_arg( $qv_remove, $redirect['query'] ); //Remove all of the per-tax qv's // Create the destination url for this taxonomy $tax_url = parse_url( $tax_url ); if ( ! empty( $tax_url['query'] ) ) { // Taxonomy accessible via ?taxonomy=..&term=.. or any custom qv.. parse_str( $tax_url['query'], $query_vars ); $redirect['query'] = add_query_arg( $query_vars, $redirect['query'] ); } else { // Taxonomy is accessible via a "pretty-URL" $redirect['path'] = $tax_url['path']; } } else { // Some query vars are set via $_GET. Unset those from $_GET that exist via the rewrite foreach ( $qv_remove as $_qv ) { if ( isset( $rewrite_vars[ $_qv ] ) ) { $redirect['query'] = remove_query_arg( $_qv, $redirect['query'] ); } } } } } } } elseif ( is_single() && strpos( $wp_rewrite->permalink_structure, '%category%' ) !== false ) { $cat = get_query_var( 'category_name' ); if ( $cat ) { $category = get_category_by_path( $cat ); if ( ( ! $category || is_wp_error( $category ) ) || ! has_term( $category->term_id, 'category', $wp_query->get_queried_object_id() ) ) { $redirect_url = get_permalink( $wp_query->get_queried_object_id() ); } } } // Post Paging if ( is_singular() && get_query_var( 'page' ) ) { if ( ! $redirect_url ) { $redirect_url = get_permalink( get_queried_object_id() ); } $page = get_query_var( 'page' ); if ( $page > 1 ) { if ( is_front_page() ) { $redirect_url = trailingslashit( $redirect_url ) . user_trailingslashit( "$wp_rewrite->pagination_base/$page", 'paged' ); } else { $redirect_url = trailingslashit( $redirect_url ) . user_trailingslashit( $page, 'single_paged' ); } } $redirect['query'] = remove_query_arg( 'page', $redirect['query'] ); } // paging and feeds if ( get_query_var( 'paged' ) || is_feed() || get_query_var( 'cpage' ) ) { while ( preg_match( "#/$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'] ) ) { // Strip off paging and feed $redirect['path'] = preg_replace( "#/$wp_rewrite->pagination_base/?[0-9]+?(/+)?$#", '/', $redirect['path'] ); // strip off any existing paging $redirect['path'] = preg_replace( '#/(comments/?)?(feed|rss2?|rdf|atom)(/+|$)#', '/', $redirect['path'] ); // strip off feed endings $redirect['path'] = preg_replace( "#/{$wp_rewrite->comments_pagination_base}-[0-9]+?(/+)?$#", '/', $redirect['path'] ); // strip off any existing comment paging } $addl_path = ''; if ( is_feed() && in_array( get_query_var( 'feed' ), $wp_rewrite->feeds ) ) { $addl_path = ! empty( $addl_path ) ? trailingslashit( $addl_path ) : ''; if ( ! is_singular() && get_query_var( 'withcomments' ) ) { $addl_path .= 'comments/'; } if ( ( 'rss' == get_default_feed() && 'feed' == get_query_var( 'feed' ) ) || 'rss' == get_query_var( 'feed' ) ) { $addl_path .= user_trailingslashit( 'feed/' . ( ( get_default_feed() == 'rss2' ) ? '' : 'rss2' ), 'feed' ); } else { $addl_path .= user_trailingslashit( 'feed/' . ( ( get_default_feed() == get_query_var( 'feed' ) || 'feed' == get_query_var( 'feed' ) ) ? '' : get_query_var( 'feed' ) ), 'feed' ); } $redirect['query'] = remove_query_arg( 'feed', $redirect['query'] ); } elseif ( is_feed() && 'old' == get_query_var( 'feed' ) ) { $old_feed_files = array( 'wp-atom.php' => 'atom', 'wp-commentsrss2.php' => 'comments_rss2', 'wp-feed.php' => get_default_feed(), 'wp-rdf.php' => 'rdf', 'wp-rss.php' => 'rss2', 'wp-rss2.php' => 'rss2', ); if ( isset( $old_feed_files[ basename( $redirect['path'] ) ] ) ) { $redirect_url = get_feed_link( $old_feed_files[ basename( $redirect['path'] ) ] ); wp_redirect( $redirect_url, 301 ); die(); } } if ( get_query_var( 'paged' ) > 0 ) { $paged = get_query_var( 'paged' ); $redirect['query'] = remove_query_arg( 'paged', $redirect['query'] ); if ( ! is_feed() ) { if ( $paged > 1 && ! is_single() ) { $addl_path = ( ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '' ) . user_trailingslashit( "$wp_rewrite->pagination_base/$paged", 'paged' ); } elseif ( ! is_single() ) { $addl_path = ! empty( $addl_path ) ? trailingslashit( $addl_path ) : ''; } } elseif ( $paged > 1 ) { $redirect['query'] = add_query_arg( 'paged', $paged, $redirect['query'] ); } } 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 ) ) ) { $addl_path = ( ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '' ) . user_trailingslashit( $wp_rewrite->comments_pagination_base . '-' . get_query_var( 'cpage' ), 'commentpaged' ); $redirect['query'] = remove_query_arg( 'cpage', $redirect['query'] ); } $redirect['path'] = user_trailingslashit( preg_replace( '|/' . preg_quote( $wp_rewrite->index, '|' ) . '/?$|', '/', $redirect['path'] ) ); // strip off trailing /index.php/ if ( ! empty( $addl_path ) && $wp_rewrite->using_index_permalinks() && strpos( $redirect['path'], '/' . $wp_rewrite->index . '/' ) === false ) { $redirect['path'] = trailingslashit( $redirect['path'] ) . $wp_rewrite->index . '/'; } if ( ! empty( $addl_path ) ) { $redirect['path'] = trailingslashit( $redirect['path'] ) . $addl_path; } $redirect_url = $redirect['scheme'] . '://' . $redirect['host'] . $redirect['path']; } if ( 'wp-register.php' == basename( $redirect['path'] ) ) { if ( is_multisite() ) { /** This filter is documented in wp-login.php */ $redirect_url = apply_filters( 'wp_signup_location', network_site_url( 'wp-signup.php' ) ); } else { $redirect_url = wp_registration_url(); } wp_redirect( $redirect_url, 301 ); die(); } } // tack on any additional query vars $redirect['query'] = preg_replace( '#^\??&*?#', '', $redirect['query'] ); if ( $redirect_url && ! empty( $redirect['query'] ) ) { parse_str( $redirect['query'], $_parsed_query ); $redirect = @parse_url( $redirect_url ); if ( ! empty( $_parsed_query['name'] ) && ! empty( $redirect['query'] ) ) { parse_str( $redirect['query'], $_parsed_redirect_query ); if ( empty( $_parsed_redirect_query['name'] ) ) { unset( $_parsed_query['name'] ); } } $_parsed_query = array_combine( rawurlencode_deep( array_keys( $_parsed_query ) ), rawurlencode_deep( array_values( $_parsed_query ) ) ); $redirect_url = add_query_arg( $_parsed_query, $redirect_url ); } if ( $redirect_url ) { $redirect = @parse_url( $redirect_url ); } // www.example.com vs example.com $user_home = @parse_url( home_url() ); if ( ! empty( $user_home['host'] ) ) { $redirect['host'] = $user_home['host']; } if ( empty( $user_home['path'] ) ) { $user_home['path'] = '/'; } // Handle ports if ( ! empty( $user_home['port'] ) ) { $redirect['port'] = $user_home['port']; } else { unset( $redirect['port'] ); } // trailing /index.php $redirect['path'] = preg_replace( '|/' . preg_quote( $wp_rewrite->index, '|' ) . '/*?$|', '/', $redirect['path'] ); $punctuation_pattern = implode( '|', array_map( 'preg_quote', array( ' ', '%20', // space '!', '%21', // exclamation mark '"', '%22', // double quote "'", '%27', // single quote '(', '%28', // opening bracket ')', '%29', // closing bracket ',', '%2C', // comma '.', '%2E', // period ';', '%3B', // semicolon '{', '%7B', // opening curly bracket '}', '%7D', // closing curly bracket '%E2%80%9C', // opening curly quote '%E2%80%9D', // closing curly quote ) ) ); // Remove trailing spaces and end punctuation from the path. $redirect['path'] = preg_replace( "#($punctuation_pattern)+$#", '', $redirect['path'] ); if ( ! empty( $redirect['query'] ) ) { // Remove trailing spaces and end punctuation from certain terminating query string args. $redirect['query'] = preg_replace( "#((p|page_id|cat|tag)=[^&]*?)($punctuation_pattern)+$#", '$1', $redirect['query'] ); // Clean up empty query strings $redirect['query'] = trim( preg_replace( '#(^|&)(p|page_id|cat|tag)=?(&|$)#', '&', $redirect['query'] ), '&' ); // Redirect obsolete feeds $redirect['query'] = preg_replace( '#(^|&)feed=rss(&|$)#', '$1feed=rss2$2', $redirect['query'] ); // Remove redundant leading ampersands $redirect['query'] = preg_replace( '#^\??&*?#', '', $redirect['query'] ); } // strip /index.php/ when we're not using PATHINFO permalinks if ( ! $wp_rewrite->using_index_permalinks() ) { $redirect['path'] = str_replace( '/' . $wp_rewrite->index . '/', '/', $redirect['path'] ); } // trailing slashes if ( is_object( $wp_rewrite ) && $wp_rewrite->using_permalinks() && ! is_404() && ( ! is_front_page() || ( is_front_page() && ( get_query_var( 'paged' ) > 1 ) ) ) ) { $user_ts_type = ''; if ( get_query_var( 'paged' ) > 0 ) { $user_ts_type = 'paged'; } else { foreach ( array( 'single', 'category', 'page', 'day', 'month', 'year', 'home' ) as $type ) { $func = 'is_' . $type; if ( call_user_func( $func ) ) { $user_ts_type = $type; break; } } } $redirect['path'] = user_trailingslashit( $redirect['path'], $user_ts_type ); } elseif ( is_front_page() ) { $redirect['path'] = trailingslashit( $redirect['path'] ); } // Strip multiple slashes out of the URL if ( strpos( $redirect['path'], '//' ) > -1 ) { $redirect['path'] = preg_replace( '|/+|', '/', $redirect['path'] ); } // Always trailing slash the Front Page URL if ( trailingslashit( $redirect['path'] ) == trailingslashit( $user_home['path'] ) ) { $redirect['path'] = trailingslashit( $redirect['path'] ); } // Ignore differences in host capitalization, as this can lead to infinite redirects // Only redirect no-www <=> yes-www if ( strtolower( $original['host'] ) == strtolower( $redirect['host'] ) || ( strtolower( $original['host'] ) != 'www.' . strtolower( $redirect['host'] ) && 'www.' . strtolower( $original['host'] ) != strtolower( $redirect['host'] ) ) ) { $redirect['host'] = $original['host']; } $compare_original = array( $original['host'], $original['path'] ); if ( ! empty( $original['port'] ) ) { $compare_original[] = $original['port']; } if ( ! empty( $original['query'] ) ) { $compare_original[] = $original['query']; } $compare_redirect = array( $redirect['host'], $redirect['path'] ); if ( ! empty( $redirect['port'] ) ) { $compare_redirect[] = $redirect['port']; } if ( ! empty( $redirect['query'] ) ) { $compare_redirect[] = $redirect['query']; } if ( $compare_original !== $compare_redirect ) { $redirect_url = $redirect['scheme'] . '://' . $redirect['host']; if ( ! empty( $redirect['port'] ) ) { $redirect_url .= ':' . $redirect['port']; } $redirect_url .= $redirect['path']; if ( ! empty( $redirect['query'] ) ) { $redirect_url .= '?' . $redirect['query']; } } if ( ! $redirect_url || $redirect_url == $requested_url ) { return; } // Hex encoded octets are case-insensitive. if ( false !== strpos( $requested_url, '%' ) ) { if ( ! function_exists( 'lowercase_octets' ) ) { /** * Converts the first hex-encoded octet match to lowercase. * * @since 3.1.0 * @ignore * * @param array $matches Hex-encoded octet matches for the requested URL. * @return string Lowercased version of the first match. */ function lowercase_octets( $matches ) { return strtolower( $matches[0] ); } } $requested_url = preg_replace_callback( '|%[a-fA-F0-9][a-fA-F0-9]|', 'lowercase_octets', $requested_url ); } /** * Filters the canonical redirect URL. * * Returning false to this filter will cancel the redirect. * * @since 2.3.0 * * @param string $redirect_url The redirect URL. * @param string $requested_url The requested URL. */ $redirect_url = apply_filters( 'redirect_canonical', $redirect_url, $requested_url ); // yes, again -- in case the filter aborted the request if ( ! $redirect_url || strip_fragment_from_url( $redirect_url ) == strip_fragment_from_url( $requested_url ) ) { return; } if ( $do_redirect ) { // protect against chained redirects if ( ! redirect_canonical( $redirect_url, false ) ) { wp_redirect( $redirect_url, 301 ); exit(); } else { // Debug // die("1: $redirect_url<br />2: " . redirect_canonical( $redirect_url, false ) ); return; } } else { return $redirect_url; } } /** * Removes arguments from a query string if they are not present in a URL * DO NOT use this in plugin code. * * @since 3.4.0 * @access private * * @param string $query_string * @param array $args_to_check * @param string $url * @return string The altered query string */ function _remove_qs_args_if_not_in_url( $query_string, array $args_to_check, $url ) { $parsed_url = @parse_url( $url ); if ( ! empty( $parsed_url['query'] ) ) { parse_str( $parsed_url['query'], $parsed_query ); foreach ( $args_to_check as $qv ) { if ( ! isset( $parsed_query[ $qv ] ) ) { $query_string = remove_query_arg( $qv, $query_string ); } } } else { $query_string = remove_query_arg( $args_to_check, $query_string ); } return $query_string; } /** * Strips the #fragment from a URL, if one is present. * * @since 4.4.0 * * @param string $url The URL to strip. * @return string The altered URL. */ function strip_fragment_from_url( $url ) { $parsed_url = @parse_url( $url ); if ( ! empty( $parsed_url['host'] ) ) { // This mirrors code in redirect_canonical(). It does not handle every case. $url = $parsed_url['scheme'] . '://' . $parsed_url['host']; if ( ! empty( $parsed_url['port'] ) ) { $url .= ':' . $parsed_url['port']; } if ( ! empty( $parsed_url['path'] ) ) { $url .= $parsed_url['path']; } if ( ! empty( $parsed_url['query'] ) ) { $url .= '?' . $parsed_url['query']; } } return $url; } /** * Attempts to guess the correct URL based on query vars * * @since 2.3.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @return false|string The correct URL if one is found. False on failure. */ function redirect_guess_404_permalink() { global $wpdb; if ( get_query_var( 'name' ) ) { $where = $wpdb->prepare( 'post_name LIKE %s', $wpdb->esc_like( get_query_var( 'name' ) ) . '%' ); // if any of post_type, year, monthnum, or day are set, use them to refine the query if ( get_query_var( 'post_type' ) ) { $where .= $wpdb->prepare( ' AND post_type = %s', get_query_var( 'post_type' ) ); } else { $where .= " AND post_type IN ('" . implode( "', '", get_post_types( array( 'public' => true ) ) ) . "')"; } if ( get_query_var( 'year' ) ) { $where .= $wpdb->prepare( ' AND YEAR(post_date) = %d', get_query_var( 'year' ) ); } if ( get_query_var( 'monthnum' ) ) { $where .= $wpdb->prepare( ' AND MONTH(post_date) = %d', get_query_var( 'monthnum' ) ); } if ( get_query_var( 'day' ) ) { $where .= $wpdb->prepare( ' AND DAYOFMONTH(post_date) = %d', get_query_var( 'day' ) ); } $post_id = $wpdb->get_var( "SELECT ID FROM $wpdb->posts WHERE $where AND post_status = 'publish'" ); if ( ! $post_id ) { return false; } if ( get_query_var( 'feed' ) ) { return get_post_comments_feed_link( $post_id, get_query_var( 'feed' ) ); } elseif ( get_query_var( 'page' ) && 1 < get_query_var( 'page' ) ) { return trailingslashit( get_permalink( $post_id ) ) . user_trailingslashit( get_query_var( 'page' ), 'single_paged' ); } else { return get_permalink( $post_id ); } } return false; } /** * Redirects a variety of shorthand URLs to the admin. * * If a user visits example.com/admin, they'll be redirected to /wp-admin. * Visiting /login redirects to /wp-login.php, and so on. * * @since 3.4.0 * * @global WP_Rewrite $wp_rewrite WordPress rewrite component. */ function wp_redirect_admin_locations() { global $wp_rewrite; if ( ! ( is_404() && $wp_rewrite->using_permalinks() ) ) { return; } $admins = array( home_url( 'wp-admin', 'relative' ), home_url( 'dashboard', 'relative' ), home_url( 'admin', 'relative' ), site_url( 'dashboard', 'relative' ), site_url( 'admin', 'relative' ), ); if ( in_array( untrailingslashit( $_SERVER['REQUEST_URI'] ), $admins ) ) { wp_redirect( admin_url() ); exit; } $logins = array( home_url( 'wp-login.php', 'relative' ), home_url( 'login', 'relative' ), site_url( 'login', 'relative' ), ); if ( in_array( untrailingslashit( $_SERVER['REQUEST_URI'] ), $logins ) ) { wp_redirect( wp_login_url() ); exit; } }
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