Ticket #20601: 20601.7.diff

src/wp-includes/class-wp.php

@@ -568 +568 @@
                 // We will 404 for paged queries, as no posts were found.
                 if ( ! is_paged() ) {
 
+                        // Don't 404 for authors without posts as long as they matched an author on this site.
+                        $author = get_query_var( 'author' );
+                        if ( is_author() && is_numeric( $author ) && $author > 0 && is_user_member_of_blog( $author ) ) {
+                                status_header( 200 );
+                                return;
+                        }
+
                         // Don't 404 for these queries if they matched an object.
-                        if ( ( is_tag() || is_category() || is_tax() || is_author() || is_post_type_archive() ) && $wp_query->get_queried_object() ) {
+                        if ( ( is_tag() || is_category() || is_tax() || is_post_type_archive() ) && get_queried_object() ) {
                                 status_header( 200 );
                                 return;
                         }

tests/phpunit/tests/ms.php

@@ -1172 +1172 @@
                 // Expect 0 sites when using an offset larger than the number of sites
                 $this->assertCount( 0, wp_get_sites( array( 'offset' => 20 ) ) );
         }
+
+        /**
+         * @ticket 20601
+         */
+        function test_user_member_of_blog() {
+                $this->factory->blog->create();
+                $user_id = $this->factory->user->create();
+                $this->factory->blog->create( array( 'user_id' => $user_id ) );
+
+                $blogs = get_blogs_of_user( $user_id );
+                $this->assertCount( 2, $blogs );
+                $first = reset( $blogs )->userblog_id;
+                remove_user_from_blog( $user_id, $first );
+
+                $blogs = get_blogs_of_user( $user_id );
+                $second = reset( $blogs )->userblog_id;
+                $this->assertCount( 1, $blogs );
+
+                switch_to_blog( $first );
+
+                $this->go_to( get_author_posts_url( $user_id ) );
+                $this->assertQueryTrue( 'is_404' );
+
+                switch_to_blog( $second );
+
+                $this->go_to( get_author_posts_url( $user_id ) );
+                $this->assertQueryTrue( 'is_author', 'is_archive' );
+
+                add_user_to_blog( $first, $user_id, 'administrator' );
+                $blogs = get_blogs_of_user( $user_id );
+                $this->assertCount( 2, $blogs );
+
+                switch_to_blog( $first );
+
+                $this->go_to( get_author_posts_url( $user_id ) );
+                $this->assertQueryTrue( 'is_author', 'is_archive' );
+        }
 }
 
 endif;