62 lines
1.9 KiB
JavaScript
62 lines
1.9 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.canonicalize = void 0;
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/*
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Copyright 2023 The Sigstore Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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// JSON canonicalization per https://github.com/cyberphone/json-canonicalization
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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function canonicalize(object) {
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let buffer = '';
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if (object === null || typeof object !== 'object' || object.toJSON != null) {
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// Primitives or toJSONable objects
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buffer += JSON.stringify(object);
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}
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else if (Array.isArray(object)) {
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// Array - maintain element order
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buffer += '[';
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let first = true;
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object.forEach((element) => {
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if (!first) {
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buffer += ',';
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}
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first = false;
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// recursive call
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buffer += canonicalize(element);
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});
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buffer += ']';
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}
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else {
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// Object - Sort properties before serializing
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buffer += '{';
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let first = true;
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Object.keys(object)
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.sort()
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.forEach((property) => {
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if (!first) {
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buffer += ',';
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}
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first = false;
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buffer += JSON.stringify(property);
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buffer += ':';
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// recursive call
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buffer += canonicalize(object[property]);
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});
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buffer += '}';
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}
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return buffer;
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}
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exports.canonicalize = canonicalize;
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