Ticket #51170: 51170.diff

src/wp-admin/includes/class-wp-filesystem-ftpext.php

@@ -409 +409 @@
         }
 
         /**
-         * Checks if a file or directory exists.
+         * Checks if a path exists.
          *
          * @since 2.5.0
          *
-         * @param string $file Path to file or directory.
-         * @return bool Whether $file exists or not.
+         * @param string $path Path to file or directory.
+         * @return bool Whether $path exists or not.
          */
-        public function exists( $file ) {
-                $list = ftp_nlist( $this->link, $file );
+        public function exists( $path ) {
 
-                if ( empty( $list ) && $this->is_dir( $file ) ) {
-                        return true; // File is an empty directory.
+                /**
+                 * As is_dir tries to change in the dir it implicitly
+                 * ensures existance of dir.
+                 */
+                if ( $this->is_dir( $path ) ) {
+                        return true;
                 }
+                else {
+
+                        try {
+                                /**
+                                 * Check for hidden file
+                                 * 
+                                 * @ticket 28013
+                                 */
+                                $basename = basename( $path );
+                                if ( substr( $basename, 0, 1 ) === "." ) {
+                                        $path = '-a ' . $path;  
+                                }
 
-                return ! empty( $list ); // Empty list = no file, so invert.
+                                $list = ftp_nlist( $this->link, $path );
+
+                                return ! empty( $list ); // Empty list = no file, so invert.
+                        }
+
+                        /**
+                         * If ftp_nlist is not working, try ftp_size
+                         * 
+                         * @ticket 51170
+                         */
+                        catch ( Exception $ex ) {
+                                $size = ftp_size( $this->link, $path );
+
+                                return $size > -1;
+                        }
+                }
         }
 
         /**