Ticket #52892: 52892.diff

src/wp-admin/includes/privacy-tools.php

@@ -413 +413 @@
         // Convert the groups to JSON format.
         $groups_json = wp_json_encode( $groups );
 
+        if ( false === $groups_json ) {
+                $error_message = sprintf(
+                        /* translators: %s: Error message. */
+                        __( 'Unable to encode the personal data for export. Error: %s' ),
+                        json_last_error_msg()
+                );
+
+                wp_send_json_error( $error_message );
+        }
+
         /*
          * Handle the JSON export.
          */

tests/phpunit/tests/privacy/wpPrivacyGeneratePersonalDataExportFile.php

@@ -631 +631 @@
                         ),
                 );
         }
+
+        /**
+         * Test should generate JSON error when JSON encoding fails.
+         *
+         * @ticket 52892
+         */
+        public function test_should_generate_json_error_when_json_encoding_fails() {
+                add_filter( 'get_post_metadata', array( $this, 'filter_export_data_grouped_metadata' ), 10, 3 );
+
+                // Validate JSON encoding fails and returns `false`.
+                $metadata = get_post_meta( self::$export_request_id, '_export_data_grouped', true );
+                $this->assertFalse( wp_json_encode( $metadata ) );
+
+                $this->expectException( 'WPDieException' );
+                $this->expectOutputString( '{"success":false,"data":"Unable to encode the personal data for export. Error: Type is not supported"}' );
+                wp_privacy_generate_personal_data_export_file( self::$export_request_id );
+        }
+
+        public function filter_export_data_grouped_metadata( $value, $object_id, $meta_key ) {
+                if ( $object_id !== self::$export_request_id ) {
+                        return $value;
+                }
+
+                if ( '_export_data_grouped' !== $meta_key ) {
+                        return $value;
+                }
+
+                $file = fopen( __FILE__, 'r' );
+
+                $value = array(
+                        'user' => array(
+                                'group_label'       => 'User',
+                                'group_description' => 'User’s profile data.',
+                                'items'             => array(),
+                                'resource'          => $file,
+                        ),
+                );
+
+                fclose( $file );
+
+                return array( $value );
+        }
 }