Ticket #14781: 14781_2.diff

wp-admin/includes/class-wp-upgrader.php

@@ -144 +144 @@
                 if ( $wp_filesystem->is_dir($working_dir) )
                         $wp_filesystem->delete($working_dir, true);
 
-                // Unzip package to working directory
-                $result = unzip_file($package, $working_dir); //TODO optimizations, Copy when Move/Rename would suffice?
+                $extension = pathinfo($package, PATHINFO_EXTENSION);
+                
+                // Make uploading a PHP file instead of a zip archive possible
+                if ( $extension == 'php' ) {
+                        // Create a new folder
+                        mkdir($working_dir);
+                        
+                        // Copy the PHP file into the new foler
+                        $result = rename($package, $working_dir . '/' . basename($package));
+                } else {
+                        // Unzip package to working directory
+                        $result = unzip_file($package, $working_dir); //TODO optimizations, Copy when Move/Rename would suffice?
+                        
+                        // Once extracted, delete the package if required.
+                        if ( $delete_package )
+                                unlink($package);
+                }
 
-                // Once extracted, delete the package if required.
-                if ( $delete_package )
-                        unlink($package);
-
                 if ( is_wp_error($result) ) {
                         $wp_filesystem->delete($working_dir, true);
                         if ( 'incompatible_archive' == $result->get_error_code() ) {