1"use strict"; 2Object.defineProperty(exports, "__esModule", { value: true }); 3exports.canonicalize = void 0; 4/* 5Copyright 2023 The Sigstore Authors. 6 7Licensed under the Apache License, Version 2.0 (the "License"); 8you may not use this file except in compliance with the License. 9You may obtain a copy of the License at 10 11 http://www.apache.org/licenses/LICENSE-2.0 12 13Unless required by applicable law or agreed to in writing, software 14distributed under the License is distributed on an "AS IS" BASIS, 15WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16See the License for the specific language governing permissions and 17limitations under the License. 18*/ 19// JSON canonicalization per https://github.com/cyberphone/json-canonicalization 20// eslint-disable-next-line @typescript-eslint/no-explicit-any 21function canonicalize(object) { 22 let buffer = ''; 23 if (object === null || typeof object !== 'object' || object.toJSON != null) { 24 // Primitives or toJSONable objects 25 buffer += JSON.stringify(object); 26 } 27 else if (Array.isArray(object)) { 28 // Array - maintain element order 29 buffer += '['; 30 let first = true; 31 object.forEach((element) => { 32 if (!first) { 33 buffer += ','; 34 } 35 first = false; 36 // recursive call 37 buffer += canonicalize(element); 38 }); 39 buffer += ']'; 40 } 41 else { 42 // Object - Sort properties before serializing 43 buffer += '{'; 44 let first = true; 45 Object.keys(object) 46 .sort() 47 .forEach((property) => { 48 if (!first) { 49 buffer += ','; 50 } 51 first = false; 52 buffer += JSON.stringify(property); 53 buffer += ':'; 54 // recursive call 55 buffer += canonicalize(object[property]); 56 }); 57 buffer += '}'; 58 } 59 return buffer; 60} 61exports.canonicalize = canonicalize; 62