* prevents penalty for duplicate content by redirecting all incoming links to
* one or the other.
*
- * Prevents redirection for feeds, trackbacks, searches, comment popup, and
+ * 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.
* 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 WordPress database abstraction object.
*
* @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;
+ 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 ( is_trackback() || is_search() || is_comments_popup() || is_admin() || is_preview() || is_robots() || ( $is_IIS && !iis7_supports_permalinks() ) ) {
+ if ( is_trackback() || is_search() || is_admin() || is_preview() || is_robots() || ( $is_IIS && !iis7_supports_permalinks() ) ) {
return;
}
- if ( !$requested_url ) {
+ 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'];
}
$original = @parse_url($requested_url);
- if ( false === $original )
+ if ( false === $original ) {
return;
-
- // Some PHP setups turn requests for / into /index.php in REQUEST_URI
- // 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']);
+ }
$redirect = $original;
$redirect_url = false;
$id = max( get_query_var('p'), get_query_var('page_id'), get_query_var('attachment_id') );
if ( $id && $redirect_post = get_post($id) ) {
$post_type_obj = get_post_type_object($redirect_post->post_type);
- if ( $post_type_obj->public ) {
+ 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( '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) && $wp_rewrite->using_permalinks() ) {
// rewriting of old ?p=X, ?m=2004, ?m=200401, ?m=20040101
- if ( is_attachment() && !empty($_GET['attachment_id']) && ! $redirect_url ) {
- if ( $redirect_url = get_attachment_link(get_query_var('attachment_id')) )
- $redirect['query'] = remove_query_arg('attachment_id', $redirect['query']);
+ 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 ) {
if ( $redirect_url = get_permalink(get_query_var('p')) )
$redirect['query'] = remove_query_arg(array('p', 'post_type'), $redirect['query']);
} elseif ( is_page() && !empty($_GET['page_id']) && ! $redirect_url ) {
if ( $redirect_url = get_permalink(get_query_var('page_id')) )
$redirect['query'] = remove_query_arg('page_id', $redirect['query']);
- } elseif ( is_page() && !is_feed() && isset($wp_query->queried_object) && 'page' == get_option('show_on_front') && $wp_query->queried_object->ID == get_option('page_on_front') && ! $redirect_url ) {
+ } 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 ) {
if ( $redirect_url = get_permalink(get_option('page_for_posts')) )
}
} elseif ( is_single() && strpos($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) ) )
+ 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() && ! is_front_page() && get_query_var('page') ) {
+ if ( is_singular() && 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' );
+
+ $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'] );
}
}
}
- 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 ) ) ) {
+ 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'] );
}
/** 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' );
+ $redirect_url = wp_registration_url();
}
wp_redirect( $redirect_url, 301 );
$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, '%') ) {
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] );
}
}
/**
- * Filter the canonical redirect URL.
+ * Filters the canonical redirect URL.
*
* Returning false to this filter will cancel the redirect.
*
*/
$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;
+ // 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
} else {
// Debug
// die("1: $redirect_url<br />2: " . redirect_canonical( $redirect_url, false ) );
- return false;
+ return;
}
} else {
return $redirect_url;
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'];
+ }
+ $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
*
*
* @global wpdb $wpdb WordPress database abstraction object.
*
- * @return bool|string The correct URL if one is found. False on failure.
+ * @return false|string The correct URL if one is found. False on failure.
*/
function redirect_guess_404_permalink() {
- global $wpdb, $wp_rewrite;
+ global $wpdb;
if ( get_query_var('name') ) {
$where = $wpdb->prepare("post_name LIKE %s", $wpdb->esc_like( get_query_var('name') ) . '%');
return false;
if ( get_query_var( 'feed' ) )
return get_post_comments_feed_link( $post_id, get_query_var( 'feed' ) );
- elseif ( get_query_var( 'page' ) )
+ 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
+ */
function wp_redirect_admin_locations() {
global $wp_rewrite;
if ( ! ( is_404() && $wp_rewrite->using_permalinks() ) )
site_url( 'login', 'relative' ),
);
if ( in_array( untrailingslashit( $_SERVER['REQUEST_URI'] ), $logins ) ) {
- wp_redirect( site_url( 'wp-login.php', 'login' ) );
+ wp_redirect( wp_login_url() );
exit;
}
}
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