WordPress 4.4
[autoinstalls/wordpress.git] / wp-includes / canonical.php
index f75a72eea39197a5297f0633118bf9470ceaae9b..cacbdaadfe33ed86a100520a4193453e55bbf456 100644 (file)
@@ -31,7 +31,7 @@
  * @global WP_Rewrite $wp_rewrite
  * @global bool $is_IIS
  * @global WP_Query $wp_query
  * @global WP_Rewrite $wp_rewrite
  * @global bool $is_IIS
  * @global WP_Query $wp_query
- * @global wpdb $wpdb
+ * @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 string $requested_url Optional. The URL that was requested, used to
  *             figure if redirect is needed.
@@ -39,7 +39,7 @@
  * @return string|void The string of the URL, if redirect needed.
  */
 function redirect_canonical( $requested_url = null, $do_redirect = true ) {
  * @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 ( isset( $_SERVER['REQUEST_METHOD'] ) && ! in_array( strtoupper( $_SERVER['REQUEST_METHOD'] ), array( 'GET', 'HEAD' ) ) ) {
                return;
@@ -59,7 +59,7 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
                return;
        }
 
                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'];
                // build the URL in the address bar
                $requested_url  = is_ssl() ? 'https://' : 'http://';
                $requested_url .= $_SERVER['HTTP_HOST'];
@@ -67,14 +67,9 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
        }
 
        $original = @parse_url($requested_url);
        }
 
        $original = @parse_url($requested_url);
-       if ( false === $original )
+       if ( false === $original ) {
                return;
                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;
 
        $redirect = $original;
        $redirect_url = false;
@@ -122,7 +117,7 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
                $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);
                $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 );
                        }
                                $redirect_url = get_permalink($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 );
                        }
@@ -148,11 +143,26 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
                        }
                }
 
                        }
                }
 
+               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) && $wp_rewrite->using_permalinks() ) {
                // rewriting of old ?p=X, ?m=2004, ?m=200401, ?m=20040101
        } elseif ( is_object($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'), $redirect['query']);
                } elseif ( is_single() && !empty($_GET['p']) && ! $redirect_url ) {
                        if ( $redirect_url = get_permalink(get_query_var('p')) )
                                $redirect['query'] = remove_query_arg(array('p', 'post_type'), $redirect['query']);
@@ -308,7 +318,10 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
                                }
                        }
 
                                }
                        }
 
-                       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'] );
                        }
                                $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'] );
                        }
@@ -326,7 +339,7 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
                                /** This filter is documented in wp-login.php */
                                $redirect_url = apply_filters( 'wp_signup_location', network_site_url( 'wp-signup.php' ) );
                        } else {
                                /** 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 );
                        }
 
                        wp_redirect( $redirect_url, 301 );
@@ -476,7 +489,7 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
        $redirect_url = apply_filters( 'redirect_canonical', $redirect_url, $requested_url );
 
        // yes, again -- in case the filter aborted the request
        $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 ) {
+       if ( ! $redirect_url || strip_fragment_from_url( $redirect_url ) == strip_fragment_from_url( $requested_url ) ) {
                return;
        }
 
                return;
        }
 
@@ -521,18 +534,42 @@ function _remove_qs_args_if_not_in_url( $query_string, Array $args_to_check, $ur
        return $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'];
+               }
+               $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.
 /**
  * Attempts to guess the correct URL based on query vars
  *
  * @since 2.3.0
  *
  * @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() {
  *
  * @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') ) . '%');
 
        if ( get_query_var('name') ) {
                $where = $wpdb->prepare("post_name LIKE %s", $wpdb->esc_like( get_query_var('name') ) . '%');
@@ -555,7 +592,7 @@ function redirect_guess_404_permalink() {
                        return false;
                if ( get_query_var( 'feed' ) )
                        return get_post_comments_feed_link( $post_id, get_query_var( 'feed' ) );
                        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 trailingslashit( get_permalink( $post_id ) ) . user_trailingslashit( get_query_var( 'page' ), 'single_paged' );
                else
                        return get_permalink( $post_id );
@@ -591,7 +628,7 @@ function wp_redirect_admin_locations() {
                site_url( 'login', 'relative' ),
        );
        if ( in_array( untrailingslashit( $_SERVER['REQUEST_URI'] ), $logins ) ) {
                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;
        }
 }
                exit;
        }
 }