*
* 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 penality for duplicate content by redirecting all incoming links to
+ * prevents penalty for duplicate content by redirecting all incoming links to
* one or the other.
*
* Prevents redirection for feeds, trackbacks, searches, comment popup, and
- * admin URLs. Does not redirect on IIS, page/post previews, and on form data.
+ * 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
- * @uses $wp_rewrite
- * @uses $is_IIS
+ *
+ * @global WP_Rewrite $wp_rewrite
+ * @global bool $is_IIS
+ * @global WP_Query $wp_query
+ * @global wpdb $wpdb
*
* @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 null|false|string Null, if redirect not needed. False, if redirect
- * not needed or the string of the 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, $wpdb;
- if ( is_trackback() || is_search() || is_comments_popup() || is_admin() || !empty($_POST) || is_preview() || is_robots() || $is_IIS )
+ 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_comments_popup() || is_admin() || is_preview() || is_robots() || ( $is_IIS && !iis7_supports_permalinks() ) ) {
+ return;
+ }
if ( !$requested_url ) {
// build the URL in the address bar
return;
// Some PHP setups turn requests for / into /index.php in REQUEST_URI
- // See: http://trac.wordpress.org/ticket/5017
- // See: http://trac.wordpress.org/ticket/7173
+ // See: https://core.trac.wordpress.org/ticket/5017
+ // See: https://core.trac.wordpress.org/ticket/7173
// Disabled, for now:
// $original['path'] = preg_replace('|/index\.php$|', '/', $original['path']);
if ( !isset($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'] );
+ }
+
+ if ( is_feed() && ( $id = get_query_var( 'p' ) ) ) {
+ if ( $redirect_url = get_post_comments_feed_link( $id, get_query_var( 'feed' ) ) ) {
+ $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 = get_query_var('p')) ) {
$vars = $wpdb->get_results( $wpdb->prepare("SELECT post_type, post_parent FROM $wpdb->posts WHERE ID = %d", $id) );
$id = $vars->post_parent;
if ( $redirect_url = get_permalink($id) )
- $redirect['query'] = remove_query_arg(array('p', 'page_id', 'attachment_id', 'post_type'), $redirect['query']);
+ $redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ), $redirect_url );
}
}
$post_type_obj = get_post_type_object($redirect_post->post_type);
if ( $post_type_obj->public ) {
$redirect_url = get_permalink($redirect_post);
- $redirect['query'] = remove_query_arg(array('p', 'page_id', 'attachment_id', 'post_type'), $redirect['query']);
+ $redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ), $redirect_url );
}
}
- if ( ! $redirect_url )
- $redirect_url = redirect_guess_404_permalink();
+ 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 ) {
+ if ( $redirect_url = redirect_guess_404_permalink() ) {
+ $redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'page', 'feed', 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ), $redirect_url );
+ }
+ }
} elseif ( is_object($wp_rewrite) && $wp_rewrite->using_permalinks() ) {
// rewriting of old ?p=X, ?m=2004, ?m=200401, ?m=20040101
} elseif ( is_category() || is_tag() || is_tax() ) { // Terms (Tags/categories)
$term_count = 0;
- foreach ( $wp_query->tax_query->queries as $tax_query )
+ foreach ( $wp_query->tax_query->queried_terms as $tax_query )
$term_count += count( $tax_query['terms'] );
$obj = $wp_query->get_queried_object();
// Create the destination url for this taxonomy
$tax_url = parse_url($tax_url);
- if ( ! empty($tax_url['query']) ) { // Taxonomy accessable via ?taxonomy=..&term=.. or any custom qv..
+ if ( ! empty($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 accessable via a "pretty-URL"
+ } else { // Taxonomy is accessible via a "pretty-URL"
$redirect['path'] = $tax_url['path'];
}
}
}
- } elseif ( is_single() && strpos($wp_rewrite->permalink_structure, '%category%') !== false ) {
- $category = get_category_by_path(get_query_var('category_name'));
+ } elseif ( is_single() && strpos($wp_rewrite->permalink_structure, '%category%') !== false && $cat = get_query_var( 'category_name' ) ) {
+ $category = get_category_by_path( $cat );
$post_terms = wp_get_object_terms($wp_query->get_queried_object_id(), 'category', array('fields' => 'tt_ids'));
if ( (!$category || is_wp_error($category)) || ( !is_wp_error($post_terms) && !empty($post_terms) && !in_array($category->term_taxonomy_id, $post_terms) ) )
$redirect_url = get_permalink($wp_query->get_queried_object_id());
}
// Post Paging
- if ( is_singular() && get_query_var('page') && $redirect_url ) {
+ if ( is_singular() && ! is_front_page() && get_query_var('page') ) {
+ if ( !$redirect_url )
+ $redirect_url = get_permalink( get_queried_object_id() );
$redirect_url = trailingslashit( $redirect_url ) . user_trailingslashit( get_query_var( '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]+?(/+)?$#", $redirect['path'] ) || preg_match( '#/(comments/?)?(feed|rss|rdf|atom|rss2)(/+)?$#', $redirect['path'] ) || preg_match( '#/comment-page-[0-9]+(/+)?$#', $redirect['path'] ) ) {
+ while ( preg_match( "#/$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
- $redirect['path'] = preg_replace('#/comment-page-[0-9]+?(/+)?$#', '/', $redirect['path']); // strip off any existing comment paging
+ $redirect['path'] = preg_replace("#/{$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 ( get_query_var( 'withcomments' ) )
+ if ( !is_singular() && get_query_var( 'withcomments' ) )
$addl_path .= 'comments/';
- $addl_path .= user_trailingslashit( 'feed/' . ( ( get_default_feed() == get_query_var('feed') || 'feed' == get_query_var('feed') ) ? '' : get_query_var('feed') ), 'feed' );
+ 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 ) {
}
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( 'comment-page-' . get_query_var('cpage'), 'commentpaged' );
+ $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'] );
}
- $redirect['path'] = user_trailingslashit( preg_replace('|/index.php/?$|', '/', $redirect['path']) ); // strip off trailing /index.php/
- if ( !empty( $addl_path ) && $wp_rewrite->using_index_permalinks() && strpos($redirect['path'], '/index.php/') === false )
- $redirect['path'] = trailingslashit($redirect['path']) . 'index.php/';
+ $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 = site_url( 'wp-login.php?action=register' );
+ }
+
+ wp_redirect( $redirect_url, 301 );
+ die();
+ }
}
// tack on any additional query vars
unset( $_parsed_query['name'] );
}
+ $_parsed_query = rawurlencode_deep( $_parsed_query );
$redirect_url = add_query_arg( $_parsed_query, $redirect_url );
}
unset($redirect['port']);
// trailing /index.php
- $redirect['path'] = preg_replace('|/index.php/*?$|', '/', $redirect['path']);
+ $redirect['path'] = preg_replace('|/' . preg_quote( $wp_rewrite->index, '|' ) . '/*?$|', '/', $redirect['path']);
// Remove trailing spaces from the path
$redirect['path'] = preg_replace( '#(%20| )+$#', '', $redirect['path'] );
// 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('/index.php/', '/', $redirect['path']);
+ $redirect['path'] = str_replace( '/' . $wp_rewrite->index . '/', '/', $redirect['path'] );
// trailing slashes
if ( is_object($wp_rewrite) && $wp_rewrite->using_permalinks() && !is_404() && (!is_front_page() || ( is_front_page() && (get_query_var('paged') > 1) ) ) ) {
( strtolower($original['host']) != 'www.' . strtolower($redirect['host']) && 'www.' . strtolower($original['host']) != strtolower($redirect['host']) ) )
$redirect['host'] = $original['host'];
- $compare_original = array($original['host'], $original['path']);
+ $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']);
+ $compare_redirect = array( $redirect['host'], $redirect['path'] );
if ( !empty( $redirect['port'] ) )
$compare_redirect[] = $redirect['port'];
$redirect_url .= '?' . $redirect['query'];
}
- if ( !$redirect_url || $redirect_url == $requested_url )
- return false;
+ if ( ! $redirect_url || $redirect_url == $requested_url ) {
+ return;
+ }
// Hex encoded octets are case-insensitive.
if ( false !== strpos($requested_url, '%') ) {
$requested_url = preg_replace_callback('|%[a-fA-F0-9][a-fA-F0-9]|', 'lowercase_octets', $requested_url);
}
- // Note that you can use the "redirect_canonical" filter to cancel a canonical redirect for whatever reason by returning FALSE
- $redirect_url = apply_filters('redirect_canonical', $redirect_url, $requested_url);
-
- if ( !$redirect_url || $redirect_url == $requested_url ) // yes, again -- in case the filter aborted the request
- return false;
+ /**
+ * Filter 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 || $redirect_url == $requested_url ) {
+ return;
+ }
if ( $do_redirect ) {
// protect against chained redirects
} else {
// Debug
// die("1: $redirect_url<br />2: " . redirect_canonical( $redirect_url, false ) );
- return false;
+ return;
}
} else {
return $redirect_url;
}
/**
- * Attempts to guess correct post based on query vars.
+ * 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;
+}
+
+/**
+ * Attempts to guess the correct URL based on query vars
*
* @since 2.3.0
- * @uses $wpdb
*
- * @return bool|string Returns False, if it can't find post, returns correct
- * location on success.
+ * @global wpdb $wpdb WordPress database abstraction object.
+ * @global WP_Rewrite $wp_rewrite
+ *
+ * @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') )
- return false;
-
- $where = $wpdb->prepare("post_name LIKE %s", like_escape( 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'));
- 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;
- return get_permalink($post_id);
+ global $wpdb, $wp_rewrite;
+
+ 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' ) )
+ return trailingslashit( get_permalink( $post_id ) ) . user_trailingslashit( get_query_var( 'page' ), 'single_paged' );
+ else
+ return get_permalink( $post_id );
+ }
+
+ return false;
}
-add_action('template_redirect', 'redirect_canonical');
+/**
+ *
+ * @global WP_Rewrite $wp_rewrite
+ */
+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( site_url( 'wp-login.php', 'login' ) );
+ exit;
+ }
+}
scripts.mit.edu / autoinstalls / wordpress.git / blobdiff