CodeSampleX

サンプル

@sigstore/sign 3.1.0: InternalError

検証済みサンプル — npm @sigstore/sign 3.1.0: InternalError. node 22 · linux debian/x64 · docker で contract を実行し、成功しました: InternalError extends Error and sets name to…

sha256:85792fbd959062a86e7d247c17f74f9867e721d4ba926e96ac1894c051b46d31

このネットワークが提供するのは一つだけです。ビルドされるサンプル。サンドボックスで実行し、署名済みの受領証を保管します。等級はつけず、何も保証しません — 同じコードがあなたの環境でビルドされるかは測定していません。 合格した契約受領証を提出した異なる署名鍵の数です。1 なら作者だけ、2 以上なら他の誰かもビルドしています。鍵は自己生成で背後に登録された身元がないため、数えているのは人ではなく鍵です。 MIT-0

実行証拠

宣言された環境と署名済みの実行を分けてあります。このサンプルが何をどこで実行したかをそのまま確認できます。

証拠の基準
署名済みコントラクト合格
検証レシート
1
ビルドした署名鍵
1
宣言された環境 linux 24 · ubuntu · glibc 2.39 x64 npm

検証実行環境

環境 コントラクト ステージ 実行日
node 22 · linux debian/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22@sha256:8a34c4ab3ea2…		 2026-10-18

ケース

HOW
ゴール
verify @sigstore/sign.InternalError in pkg:npm/%40sigstore/sign@3.1.0
パッケージ
シンボル
  • @sigstore/sign.InternalError
作成日
2026-10-18T05:22:48Z

コントラクト

  1. InternalError extends Error and sets name to InternalError along with code, message, and optional cause properties
  2. InternalError sets cause to undefined when cause is omitted from the constructor options
  3. InternalError supports all six error codes: TLOG_FETCH_ENTRY_ERROR, TLOG_CREATE_ENTRY_ERROR, CA_CREATE_SIGNING_CERTIFICATE_ERROR, TSA_CREATE_TIMESTAMP_ERROR, IDENTITY_TOKEN_READ_ERROR, and IDENTITY_TOKEN_PARSE_ERROR
  4. FulcioSigner.sign rejects with an InternalError of code IDENTITY_TOKEN_READ_ERROR and preserves the cause when identityProvider.getToken rejects
  5. FulcioSigner.sign rejects with an InternalError of code IDENTITY_TOKEN_PARSE_ERROR when identityProvider.getToken returns a malformed identity string

ファイル

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.mjs
  • test/contract.mjs

ソースアーティファクトをダウンロード (tar.gz)

ソース

PROMPT.md
Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify @sigstore/sign.InternalError in pkg:npm/%40sigstore/sign@3.1.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40sigstore/sign@3.1.0
Demonstrate these symbols/APIs:
  - @sigstore/sign.InternalError

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.
csx.json
{"case":{"caseId":"case:sha256:675c99c45f167ec490e015224a718f164888edc99d16cca5f4feca0e21026794","contract":["InternalError extends Error and sets name to InternalError along with code, message, and optional cause properties","InternalError sets cause to undefined when cause is omitted from the constructor options","InternalError supports all six error codes: TLOG_FETCH_ENTRY_ERROR, TLOG_CREATE_ENTRY_ERROR, CA_CREATE_SIGNING_CERTIFICATE_ERROR, TSA_CREATE_TIMESTAMP_ERROR, IDENTITY_TOKEN_READ_ERROR, and IDENTITY_TOKEN_PARSE_ERROR","FulcioSigner.sign rejects with an InternalError of code IDENTITY_TOKEN_READ_ERROR and preserves the cause when identityProvider.getToken rejects","FulcioSigner.sign rejects with an InternalError of code IDENTITY_TOKEN_PARSE_ERROR when identityProvider.getToken returns a malformed identity string"],"goal":"verify @sigstore/sign.InternalError in pkg:npm/%40sigstore/sign@3.1.0","kind":"HOW","packages":["pkg:npm/%40sigstore/sign@3.1.0"],"schemaVersion":1,"symbols":["@sigstore/sign.InternalError"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"npm","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40sigstore/sign@3.1.0"],"schemaVersion":1,"subject":"pkg:npm/%40sigstore/sign@3.1.0","symbols":["@sigstore/sign.InternalError"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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package.json
{
  "name": "sample-sigstore-sign-internal-error",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "license": "MIT-0",
  "dependencies": {
    "@sigstore/sign": "3.1.0"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify @sigstore/sign.InternalError in pkg:npm/%40sigstore/sign@3.1.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40sigstore/sign@3.1.0"
  ],
  "symbols": [
    "@sigstore/sign.InternalError"
  ]
}
src/index.mjs
import { InternalError, FulcioSigner } from '@sigstore/sign';

export function createInternalError({ code, message, cause }) {
  return new InternalError({ code, message, cause });
}

export function isInternalErrorWithCode(err, expectedCode) {
  return (
    err instanceof InternalError &&
    err instanceof Error &&
    err.name === 'InternalError' &&
    err.code === expectedCode
  );
}

export async function signWithIdentityProvider(identityProvider, payload) {
  const signer = new FulcioSigner({
    fulcioBaseURL: 'http://localhost',
    identityProvider
  });
  return signer.sign(payload);
}
test/contract.mjs
import assert from 'node:assert/strict';
import { InternalError } from '@sigstore/sign';
import {
  createInternalError,
  isInternalErrorWithCode,
  signWithIdentityProvider
} from '../src/index.mjs';

// 1. Verify InternalError constructor sets name, code, message, and cause
{
  const rootCause = new Error('network timeout');
  const err = createInternalError({
    code: 'TLOG_CREATE_ENTRY_ERROR',
    message: 'failed to submit entry to transparency log',
    cause: rootCause
  });

  assert.ok(err instanceof Error, 'InternalError must be an instance of Error');
  assert.ok(err instanceof InternalError, 'err must be an instance of InternalError');
  assert.equal(err.name, 'InternalError', 'err.name must be InternalError');
  assert.equal(err.code, 'TLOG_CREATE_ENTRY_ERROR', 'err.code must match provided code');
  assert.equal(
    err.message,
    'failed to submit entry to transparency log',
    'err.message must match provided message'
  );
  assert.equal(err.cause, rootCause, 'err.cause must reference the provided cause');
  assert.ok(isInternalErrorWithCode(err, 'TLOG_CREATE_ENTRY_ERROR'));
  assert.ok(!isInternalErrorWithCode(err, 'TLOG_FETCH_ENTRY_ERROR'));
}

// 2. Verify InternalError constructor when cause is omitted
{
  const err = new InternalError({
    code: 'TSA_CREATE_TIMESTAMP_ERROR',
    message: 'timestamp creation failed'
  });

  assert.ok(err instanceof InternalError);
  assert.equal(err.name, 'InternalError');
  assert.equal(err.code, 'TSA_CREATE_TIMESTAMP_ERROR');
  assert.equal(err.message, 'timestamp creation failed');
  assert.equal(err.cause, undefined, 'err.cause must be undefined when omitted');
}

// 3. Verify all supported InternalError codes
{
  const codes = [
    'TLOG_FETCH_ENTRY_ERROR',
    'TLOG_CREATE_ENTRY_ERROR',
    'CA_CREATE_SIGNING_CERTIFICATE_ERROR',
    'TSA_CREATE_TIMESTAMP_ERROR',
    'IDENTITY_TOKEN_READ_ERROR',
    'IDENTITY_TOKEN_PARSE_ERROR'
  ];

  for (const code of codes) {
    const err = createInternalError({ code, message: `error for ${code}` });
    assert.ok(isInternalErrorWithCode(err, code));
    assert.equal(err.message, `error for ${code}`);
  }
}

// 4. Verify FulcioSigner throws InternalError with IDENTITY_TOKEN_READ_ERROR when provider rejects
{
  const providerError = new Error('provider unavailable');
  const failingProvider = {
    async getToken() {
      throw providerError;
    }
  };

  await assert.rejects(
    () => signWithIdentityProvider(failingProvider, Buffer.from('artifact')),
    (err) => {
      assert.ok(isInternalErrorWithCode(err, 'IDENTITY_TOKEN_READ_ERROR'));
      assert.equal(err.message, 'error retrieving identity token');
      assert.equal(err.cause, providerError);
      return true;
    }
  );
}

// 5. Verify FulcioSigner throws InternalError with IDENTITY_TOKEN_PARSE_ERROR on malformed identity value
{
  const malformedProvider = {
    async getToken() {
      return 'malformed-value';
    }
  };

  await assert.rejects(
    () => signWithIdentityProvider(malformedProvider, Buffer.from('artifact')),
    (err) => {
      assert.ok(isInternalErrorWithCode(err, 'IDENTITY_TOKEN_PARSE_ERROR'));
      assert.equal(err.message, 'invalid identity token: malformed-value');
      assert.ok(err.cause instanceof Error);
      return true;
    }
  );
}

console.log('All contract assertions passed.');

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