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"Kevin Chung ", + "license": "MIT", + "scripts": { + "build": "tsc", + "watch": "tsc -w", + "test": "echo \"Error: no test specified\" && exit 1" + }, + "files": [ + "dist/*.js" + ], + "bin": "./dist/cli.js", + "devDependencies": { + "@types/jsonwebtoken": "^8.3.7", + "@types/ms": "^0.7.31", + "@types/yargs": "^15.0.3", + "typescript": "^3.7.5" + }, + "dependencies": { + "chalk": "^3.0.0", + "jsonwebtoken": "^8.5.1", + "ms": "^2.1.2", + "yargs": "^15.1.0" + } +} diff --git a/src/cli.ts b/src/cli.ts new file mode 100644 index 0000000..155b09f --- /dev/null +++ b/src/cli.ts @@ -0,0 +1,180 @@ +import fs from 'fs'; +import ms from 'ms'; +import yargs from 'yargs'; +import chalk from 'chalk'; +import generate, { GenerateOptions } from './generate'; +import verify from './verify'; + +type RunOptions = GenerateOptions & { + verify: boolean; + stdout: boolean; +} + +const DOC_URL = 'https://developer.apple.com/documentation/mapkitjs/creating_a_maps_identifier_and_a_private_key'; + +const now = new Date(); + +const argv = yargs + .options({ + 'alg': { + default: 'ES256', + defaultDescription: 'ES256', + type: 'string', + hidden: true, + describe: 'The encryption algorithm (alg) used to encrypt the token. ES256 should be used to encrypt your token, and the value for this field should be "ES256".' + }, + 'kid': { + type: 'string', + describe: 'A 10-character key identifier (kid) key, obtained from your Apple Developer account', + demandOption: true, + }, + 'typ': { + default: 'JWT', + defaultDescription: 'JWT', + type: 'string', + hidden: true, + describe: 'A type parameter (typ), with the value "JWT".', + }, + 'iss': { + type: 'string', + describe: 'The Issuer (iss) registered claim key. This key\'s value is your 10-character Team ID, obtained from your developer account.', + demandOption: true, + }, + 'iat': { + default: '0', + defaultDescription: 'Current time (e.g 0 seconds from "now")', + type: 'string', + describe: 'The Issued At (iat), relative to now. Uses `zeit/ms` strings (e.g \'0\', \'2 days\', \'10 years\')', + }, + 'exp': { + default: '1hr', + defaultDescription: '1 hour', + describe: 'The Expiration Time (exp) relative to `iat`, using a `zeit/ms` string (e.g \'1hr\, \'2 days\', \'10 years\').', + type: 'string', + }, + 'key': { + demandOption: true, + describe: 'MapKit private key file path', + coerce(file) { + if (!file) { + throw new Error('No key file path'); + } + + const contents = fs.readFileSync(file, { encoding: 'utf8' }); + if (!contents.startsWith('-----BEGIN PRIVATE KEY-----') || !contents.endsWith('-----END PRIVATE KEY-----')) { + throw new Error(`Key file likely invalid (see ${DOC_URL})`); + } + + return contents; + }, + }, + 'origin': { + describe: 'The Origin (origin) key. This key\'s value is a fully qualified domain that should match the Origin header passed by a browser.', + type: 'string', + }, + 'verify': { + default: false, + defaultDescription: 'Verify token after it generates', + describe: 'Test the generated token with MapKit servers to verify if valid', + boolean: true, + }, + 'stdout': { + default: false, + defaultDescription: 'By default, outputs extra data about the token', + describe: 'Set to true to output only the token, suitable for piping', + boolean: true, + }, + }) + .coerce('iat', (iat: string) => { + const milliseconds = now.getTime() + ms(iat); + return Math.round(milliseconds / 1000); + }) + .coerce('exp', (exp: string) => { + const milliseconds = now.getTime() + ms(exp); + return Math.round(milliseconds / 1000); + }) + .argv; + +/** + * Output the result with the configurations used + * @param args + * @param token Generated token + * @param valid Valididty if boolean, `null` if skipped + */ +function output(args: RunOptions, token: string, valid: null | boolean) { + const seconds = args.exp - args.iat; + const milliseconds = seconds * 1000; + + const list = [ + ['Key Id (kid)', args.kid], + ['Issuer (iss)', args.iss], + ['Issued (iat)', args.iat, `(${new Date(args.iat * 1000)})`], + ['Expire (exp)', args.exp, `(${new Date(args.exp * 1000)})`], + ['Expires In', `${ms(milliseconds, { long: true })} (${seconds}s)`], + ['Origin', args?.origin || chalk.yellow('none')], + ]; + + // Color code valid results + if (valid === null) { + list.push(['Valid', chalk.yellow('skipped')]); + } else if (valid === true) { + list.push(['Valid', chalk.green('valid')]); + } else if (valid === false) { + list.push(['Valid', chalk.red('invalid')]); + } + + list.push(['Token', token]); + + // Figure out max-width to give output some alignment + const maxWidth = list.reduce((max, [name]) => { + return Math.max(max, name.toString().length); + }, 0); + + const output = list.map(([name, ...value]) => { + const title = name.toString().padEnd(maxWidth); + return `${chalk.bold(title)} ${value.join(' ')}`; + }); + + console.log(); + console.log(chalk.bold.underline('Token Information:')); + console.log(output.join('\n')); + console.log(); + + if (valid === false) { + console.error(chalk.redBright('Token failed to validate!')); + console.log(`See docs: ${DOC_URL}`); + } +} + +/** + * CLI run command + * @param args + */ +async function run(args: RunOptions) { + const token = generate(args); + + // Validate the token if request + let valid = null; + if (args.verify) { + try { + await verify(token, args.origin); + valid = true; + } catch (e) { + valid = false; + } + } + + // Exit if the token doesn't seem valid + if (valid === false) { + output(args, token, valid); + process.exit(1); + } + + if (!args.stdout) { + output(args, token, valid); + } else { + console.log(token); + } +} + +run(argv); diff --git a/src/generate.ts b/src/generate.ts new file mode 100644 index 0000000..10aba60 --- /dev/null +++ b/src/generate.ts @@ -0,0 +1,45 @@ +import jwt from 'jsonwebtoken'; + +interface PayloadConfig { + iss: string; + iat: number; + exp: number; + origin?: string; +} + +interface HeaderConfig { + alg: string; + kid: string; + typ: string; +} + +interface GenerateConfig { + key: string; +} + +export type GenerateOptions = PayloadConfig & HeaderConfig & GenerateConfig; + +/** + * Generate MapKit token + * @param options + * @returns {String} MapKit token + */ +export default function generate(options: GenerateOptions) { + const header: HeaderConfig = { + alg: options.alg, + kid: options.kid, + typ: options.typ, + }; + + const payload: PayloadConfig = { + iss: options.iss, + iat: options.iat, + exp: options.exp, + }; + + if (options.origin) { + payload.origin = options.origin; + } + + return jwt.sign(payload, options.key, { header }); +} diff --git a/src/verify.ts b/src/verify.ts new file mode 100644 index 0000000..83974ef --- /dev/null +++ b/src/verify.ts @@ -0,0 +1,42 @@ +import https from 'https'; +import querystring from 'querystring'; + +/** + * @const MapKitJS bootstrap path + */ +const BOOTSTRAP_PATH = 'https://cdn.apple-mapkit.com/ma/bootstrap'; + +/** + * Verify if the JWT token will work with MapKitJS endpoints + * @param token JWT token + * @param [origin = 'https://localhost'] Issuing origin + * @param [version = '5.38.1'] MapKitJS version + */ +export default function verify(token: string, origin = 'https://localhost', version = '5.38.1') { + return new Promise((resolve, reject) => { + const query = querystring.stringify({ + apiVersion: 2, + mkjsVersion: version, + poi: 1, + }); + + const path = `${BOOTSTRAP_PATH}?${query}`; + const options = { + headers: { + Authorization: `Bearer ${token}`, + Origin: origin, + Referer: origin, + }, + }; + + https + .get(path, options, (res) => { + if (res.statusCode === 200) { + resolve(); + } else { + reject(); + } + }) + .on('error', reject); + }); +} diff --git a/tsconfig.json b/tsconfig.json new file mode 100644 index 0000000..40b669c --- /dev/null +++ b/tsconfig.json @@ -0,0 +1,19 @@ +{ + "compilerOptions": { + "module": "commonjs", + "esModuleInterop": true, + "target": "es2016", + "noImplicitAny": true, + "moduleResolution": "node", + "sourceMap": false, + "baseUrl": ".", + "outDir": "dist", + "preserveWatchOutput": true, + "lib": [ + "es2016" + ] + }, + "include": [ + "src/**/*" + ] +}