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_registryServer.mjs
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_registryServer.mjs
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import {createHash, createSign, generateKeyPairSync} from 'node:crypto';
import {once} from 'node:events';
import {createServer} from 'node:http';
import {gzipSync} from 'node:zlib';
let privateKey, keyid;
switch (process.env.TEST_INTEGRITY) {
case `invalid_signature`: {
({privateKey} = generateKeyPairSync(`ec`, {
namedCurve: `sect239k1`,
}));
}
// eslint-disable-next-line no-fallthrough
case `invalid_integrity`:
case `valid`: {
const {privateKey: p, publicKey} = generateKeyPairSync(`ec`, {
namedCurve: `sect239k1`,
publicKeyEncoding: {
type: `spki`,
format: `pem`,
},
});
privateKey ??= p;
keyid = `SHA256:${createHash(`SHA256`).end(publicKey).digest(`base64`)}`;
process.env.COREPACK_INTEGRITY_KEYS = JSON.stringify({npm: [{
expires: null,
keyid,
keytype: `ecdsa-sha2-sect239k1`,
scheme: `ecdsa-sha2-sect239k1`,
key: publicKey.split(`\n`).slice(1, -2).join(``),
}]});
break;
}
}
function createSimpleTarArchive(fileName, fileContent, mode = 0o644) {
const contentBuffer = Buffer.from(fileContent);
const header = Buffer.alloc(512); // TAR headers are 512 bytes
header.write(fileName);
header.write(`100${mode.toString(8)} `, 100, 7, `utf-8`); // File mode (octal) followed by a space
header.write(`0001750 `, 108, 8, `utf-8`); // Owner's numeric user ID (octal) followed by a space
header.write(`0001750 `, 116, 8, `utf-8`); // Group's numeric user ID (octal) followed by a space
header.write(`${contentBuffer.length.toString(8)} `, 124, 12, `utf-8`); // File size in bytes (octal) followed by a space
header.write(`${Math.floor(new Date(2000, 1, 1) / 1000).toString(8)} `, 136, 12, `utf-8`); // Last modification time in numeric Unix time format (octal) followed by a space
header.fill(` `, 148, 156); // Fill checksum area with spaces for calculation
header.write(`ustar `, 257, 8, `utf-8`); // UStar indicator
// Calculate and write the checksum. Note: This is a simplified calculation not recommended for production
const checksum = header.reduce((sum, value) => sum + value, 0);
header.write(`${checksum.toString(8)}\0 `, 148, 8, `utf-8`); // Write checksum in octal followed by null and space
return Buffer.concat([
header,
contentBuffer,
Buffer.alloc(512 - (contentBuffer.length % 512)),
]);
}
const mockPackageTarGz = gzipSync(Buffer.concat([
createSimpleTarArchive(`package/bin/customPkgManager.js`, `#!/usr/bin/env node\nconsole.log("customPkgManager: Hello from custom registry");\n`, 0o755),
createSimpleTarArchive(`package/bin/pnpm.js`, `#!/usr/bin/env node\nconsole.log("pnpm: Hello from custom registry");\n`, 0o755),
createSimpleTarArchive(`package/bin/yarn.js`, `#!/usr/bin/env node\nconsole.log("yarn: Hello from custom registry");\n`, 0o755),
createSimpleTarArchive(`package/package.json`, JSON.stringify({bin: {yarn: `bin/yarn.js`, pnpm: `bin/pnpm.js`, customPkgManager: `bin/customPkgManager.js`}})),
Buffer.alloc(1024),
]));
const shasum = createHash(`sha1`).update(mockPackageTarGz).digest(`hex`);
const integrity = `sha512-${createHash(`sha512`).update(
process.env.TEST_INTEGRITY === `invalid_integrity` ?
mockPackageTarGz.subarray(1) :
mockPackageTarGz,
).digest(`base64`)}`;
const registry = {
__proto__: null,
yarn: [`1.9998.9999`],
pnpm: [`1.9998.9999`],
// eslint-disable-next-line @typescript-eslint/naming-convention
'@yarnpkg/cli-dist': [`5.9999.9999`],
customPkgManager: [`1.0.0`],
};
function generateSignature(packageName, version) {
if (privateKey == null) return undefined;
const sign = createSign(`SHA256`).end(`${packageName}@${version}:${integrity}`);
return {signatures: [{
keyid,
sig: sign.sign(privateKey, `base64`),
}]};
}
function generateVersionMetadata(packageName, version) {
return {
name: packageName,
version,
bin: {
[packageName]: `./bin/${packageName}.js`,
},
dist: {
integrity,
shasum,
size: mockPackageTarGz.length,
noattachment: false,
tarball: `${process.env.COREPACK_NPM_REGISTRY}/${packageName}/-/${packageName}-${version}.tgz`,
...generateSignature(packageName, version),
},
};
}
const server = createServer((req, res) => {
const auth = req.headers.authorization;
if (!auth?.startsWith(`Bearer `) || Buffer.from(auth.slice(`Bearer `.length), `base64`).toString() !== `user:pass`) {
res.writeHead(401).end(`Unauthorized`);
return;
}
let slashPosition = req.url.indexOf(`/`, 1);
if (req.url.charAt(1) === `@`) slashPosition = req.url.indexOf(`/`, slashPosition + 1);
const packageName = req.url.slice(1, slashPosition === -1 ? undefined : slashPosition);
if (packageName in registry) {
if (req.url === `/${packageName}`) {
// eslint-disable-next-line @typescript-eslint/naming-convention
res.end(JSON.stringify({"dist-tags": {
latest: registry[packageName].at(-1),
}, versions: Object.fromEntries(registry[packageName].map(version =>
[version, generateVersionMetadata(packageName, version)],
))}));
return;
}
const isDownloadingRequest = req.url.slice(packageName.length + 1, packageName.length + 4) === `/-/`;
let version;
if (isDownloadingRequest) {
const match = /^(.+)-(.+)\.tgz$/.exec(req.url.slice(packageName.length + 4));
if (match?.[1] === packageName) {
version = match[2];
}
} else {
version = req.url.slice(packageName.length + 2);
}
if (version === `latest`) version = registry[packageName].at(-1);
if (registry[packageName].includes(version)) {
res.end(
isDownloadingRequest ?
mockPackageTarGz :
JSON.stringify(generateVersionMetadata(packageName, version)),
);
} else {
res.writeHead(404).end(`Not Found`);
throw new Error(`unsupported request`, {cause: {url: req.url, packageName, version, isDownloadingRequest}});
}
} else {
res.writeHead(500).end(`Internal Error`);
throw new Error(`unsupported request`, {cause: {url: req.url, packageName}});
}
}).listen(0, `localhost`);
await once(server, `listening`);
const {address, port} = server.address();
switch (process.env.AUTH_TYPE) {
case `COREPACK_NPM_REGISTRY`:
process.env.COREPACK_NPM_REGISTRY = `http://user:pass@${address.includes(`:`) ? `[${address}]` : address}:${port}`;
break;
case `COREPACK_NPM_TOKEN`:
process.env.COREPACK_NPM_REGISTRY = `http://${address.includes(`:`) ? `[${address}]` : address}:${port}`;
process.env.COREPACK_NPM_TOKEN = Buffer.from(`user:pass`).toString(`base64`);
break;
case `COREPACK_NPM_PASSWORD`:
process.env.COREPACK_NPM_REGISTRY = `http://${address.includes(`:`) ? `[${address}]` : address}:${port}`;
process.env.COREPACK_NPM_USER = `user`;
process.env.COREPACK_NPM_PASSWORD = `pass`;
break;
default: throw new Error(`Invalid AUTH_TYPE in env`, {cause: process.env.AUTH_TYPE});
}
if (process.env.NOCK_ENV === `replay`) {
const originalFetch = globalThis.fetch;
globalThis.fetch = function fetch(i) {
if (!`${i}`.startsWith(`http://${address.includes(`:`) ? `[${address}]` : address}:${port}`))
throw new Error;
return Reflect.apply(originalFetch, this, arguments);
};
}
server.unref();