95 lines
3.6 KiB
JavaScript
95 lines
3.6 KiB
JavaScript
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"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.TUFClient = 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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const fs_1 = __importDefault(require("fs"));
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const path_1 = __importDefault(require("path"));
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const tuf_js_1 = require("tuf-js");
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const target_1 = require("./target");
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class TUFClient {
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constructor(options) {
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initTufCache(options);
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const remote = initRemoteConfig(options);
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this.updater = initClient(options.cachePath, remote, options);
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}
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async refresh() {
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return this.updater.refresh();
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}
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getTarget(targetName) {
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return (0, target_1.readTarget)(this.updater, targetName);
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}
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}
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exports.TUFClient = TUFClient;
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// Initializes the TUF cache directory structure including the initial
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// root.json file. If the cache directory does not exist, it will be
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// created. If the targets directory does not exist, it will be created.
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// If the root.json file does not exist, it will be copied from the
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// rootPath argument.
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function initTufCache({ cachePath, rootPath: tufRootPath, force, }) {
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const targetsPath = path_1.default.join(cachePath, 'targets');
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const cachedRootPath = path_1.default.join(cachePath, 'root.json');
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if (!fs_1.default.existsSync(cachePath)) {
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fs_1.default.mkdirSync(cachePath, { recursive: true });
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}
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if (!fs_1.default.existsSync(targetsPath)) {
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fs_1.default.mkdirSync(targetsPath);
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}
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// If the root.json file does not exist (or we're forcing re-initialization),
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// copy it from the rootPath argument
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if (!fs_1.default.existsSync(cachedRootPath) || force) {
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fs_1.default.copyFileSync(tufRootPath, cachedRootPath);
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}
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return cachePath;
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}
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// Initializes the remote.json file, which contains the URL of the TUF
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// repository. If the file does not exist, it will be created. If the file
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// exists, it will be parsed and returned.
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function initRemoteConfig({ cachePath, mirrorURL, force, }) {
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let remoteConfig;
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const remoteConfigPath = path_1.default.join(cachePath, 'remote.json');
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// If the remote config file exists, read it and parse it (skip if force is
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// true)
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if (!force && fs_1.default.existsSync(remoteConfigPath)) {
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const data = fs_1.default.readFileSync(remoteConfigPath, 'utf-8');
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remoteConfig = JSON.parse(data);
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}
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// If the remote config file does not exist (or we're forcing initialization),
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// create it
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if (!remoteConfig || force) {
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remoteConfig = { mirror: mirrorURL };
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fs_1.default.writeFileSync(remoteConfigPath, JSON.stringify(remoteConfig));
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}
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return remoteConfig;
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}
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function initClient(cachePath, remote, options) {
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const baseURL = remote.mirror;
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const config = {
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fetchTimeout: options.timeout,
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fetchRetry: options.retry,
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};
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return new tuf_js_1.Updater({
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metadataBaseUrl: baseURL,
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targetBaseUrl: `${baseURL}/targets`,
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metadataDir: cachePath,
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targetDir: path_1.default.join(cachePath, 'targets'),
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config,
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});
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}
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