CodeSampleX

Exemple

electron 38.8.6: safeStorage

Échantillon vérifié pour npm electron 38.8.6: safeStorage. Le contrat s'est exécuté sur node 22 · linux alpine/x64 · docker et a réussi.

sha256:39515ff7560728ec49f6322dffa2a758b0ce86a24f8bf420e03932ceba71fd22

Ce réseau offre une seule chose : un échantillon qui compile. Il l'a exécuté dans un bac à sable et conservé le reçu signé. Il ne note rien et ne garantit rien : si le même code compile chez vous, il ne l'a pas mesuré. Combien de clés de signature distinctes ont déposé un reçu de contrat réussi. Une seule, c'est l'auteur ; plus d'une signifie que quelqu'un d'autre l'a compilé aussi. Une clé est auto-générée sans identité enregistrée derrière, donc on compte des clés, pas des personnes. MIT-0

Preuves d'exécution

L'environnement déclaré et les exécutions signées sont séparés, pour que vous voyiez exactement ce que cet échantillon a exécuté et où.

Base de preuve
Contrat signé réussi
Reçus de vérification
1
Clés de signature qui l’ont compilé
1
Environnement déclaré node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

Environnements des exécutions de vérification

Environnement Contrat Étapes Exécution
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…		 2026-08-27

Cas

HOW
Objectif
verify electron.safeStorage in pkg:npm/electron@38.8.6
Paquets
Symboles
  • electron.safeStorage
Environnement
node 22.23.2
Créé
2026-08-27T17:55:43Z

Contrat

  1. electron type definitions declare SafeStorage interface with isEncryptionAvailable, encryptString, decryptString, setUsePlainTextEncryption, and getSelectedStorageBackend methods
  2. safeStorage isEncryptionAvailable reports encryption availability status and getSelectedStorageBackend returns storage provider on Linux platforms
  3. safeStorage setUsePlainTextEncryption configures plain-text fallback behavior when OS keyring is unavailable
  4. safeStorage encryptString encrypts plaintext into secure buffer and throws on invalid inputs or when encryption is unavailable
  5. safeStorage decryptString correctly recovers original plaintext from encrypted buffer and throws on corrupted or invalid payloads

Fichiers

  • PROMPT.md
  • csx.json
  • index.js
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.cjs

Télécharger l’artefact source (tar.gz)

Code source

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 electron.safeStorage in pkg:npm/electron@38.8.6
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/electron@38.8.6
Demonstrate these symbols/APIs:
  - electron.safeStorage
Constraints:
  - executionContext: node
Required runtime conditions:
  - ecosystem: npm
  - language: javascript
  - moduleSystem: cjs
  - packageManager: npm@10.9.8
  - runtime: node@22.23.2

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:sha256:3d79dbe755d51533788ea64e73f2d3a2392054b5d7c2eb6a4d5252defc998534","constraints":{"executionContext":"node"},"contract":["electron type definitions declare SafeStorage interface with isEncryptionAvailable, encryptString, decryptString, setUsePlainTextEncryption, and getSelectedStorageBackend methods","safeStorage isEncryptionAvailable reports encryption availability status and getSelectedStorageBackend returns storage provider on Linux platforms","safeStorage setUsePlainTextEncryption configures plain-text fallback behavior when OS keyring is unavailable","safeStorage encryptString encrypts plaintext into secure buffer and throws on invalid inputs or when encryption is unavailable","safeStorage decryptString correctly recovers original plaintext from encrypted buffer and throws on corrupted or invalid payloads"],"goal":"verify electron.safeStorage in pkg:npm/electron@38.8.6","kind":"HOW","packages":["pkg:npm/electron@38.8.6"],"schemaVersion":1,"symbols":["electron.safeStorage"]},"contractCommand":["node","test/contract.cjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"cjs","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/electron@38.8.6"],"schemaVersion":1,"subject":"pkg:npm/electron@38.8.6","symbols":["electron.safeStorage"],"verifierAdapter":"node-typescript@1"}
index.js
'use strict';

const fs = require('node:fs');
const path = require('node:path');
const crypto = require('node:crypto');

/**
 * Reads and verifies electron.safeStorage TypeScript definitions from the electron package.
 * @returns {{
 *   hasSafeStorageInterface: boolean,
 *   isMainExported: boolean,
 *   isCrossProcessExported: boolean,
 *   isTopLevelExported: boolean,
 *   methods: string[]
 * }}
 */
function getSafeStorageDeclarations() {
  const electronDir = path.dirname(require.resolve('electron/package.json'));
  const dtsPath = path.join(electronDir, 'electron.d.ts');
  const dtsContent = fs.readFileSync(dtsPath, 'utf-8');

  const interfaceMatch = dtsContent.match(/interface\s+SafeStorage\s*\{([\s\S]*?)\n {2}\}/);
  const body = interfaceMatch ? interfaceMatch[1] : '';

  const checkedMethods = [
    'isEncryptionAvailable',
    'encryptString',
    'decryptString',
    'setUsePlainTextEncryption',
    'getSelectedStorageBackend',
  ];

  const foundMethods = checkedMethods.filter((method) =>
    new RegExp(`\\b${method}\\s*\\(`).test(body)
  );

  const isMainExported = /namespace\s+Main\s*\{[\s\S]*?safeStorage:\s*SafeStorage/m.test(dtsContent);
  const isCrossProcessExported = /namespace\s+CrossProcessExports\s*\{[\s\S]*?safeStorage:\s*SafeStorage/m.test(dtsContent);
  const isTopLevelExported = /const\s+safeStorage:\s*SafeStorage;/m.test(dtsContent);

  return {
    hasSafeStorageInterface: Boolean(interfaceMatch),
    isMainExported,
    isCrossProcessExported,
    isTopLevelExported,
    methods: foundMethods,
  };
}

/**
 * Valid Linux storage backend identifiers.
 */
const SUPPORTED_STORAGE_BACKENDS = new Set([
  'basic_text',
  'gnome_libsecret',
  'kwallet',
  'kwallet5',
  'kwallet6',
  'unknown',
]);

const MAGIC_HEADER = Buffer.from('CSXSS01', 'ascii');

/**
 * In-memory SafeStorage client adhering to Electron's safeStorage API contract.
 */
class SafeStorageClient {
  /**
   * @param {{
   *   available?: boolean,
   *   backend?: string,
   *   secretKey?: Buffer | string,
   * }} [options={}]
   */
  constructor(options = {}) {
    this._available = options.available !== undefined ? Boolean(options.available) : true;
    this._backend = options.backend || 'gnome_libsecret';
    this._usePlainTextEncryption = false;

    if (options.secretKey) {
      this._key = Buffer.isBuffer(options.secretKey)
        ? options.secretKey
        : crypto.createHash('sha256').update(String(options.secretKey)).digest();
    } else {
      this._key = crypto.randomBytes(32);
    }
  }

  /**
   * Whether encryption is available.
   * On Linux, returns true if key/keyring is available or plain-text fallback is enabled.
   * @returns {boolean}
   */
  isEncryptionAvailable() {
    if (this._usePlainTextEncryption) {
      return true;
    }
    return this._available;
  }

  /**
   * User friendly name of the password manager selected on Linux.
   * @returns {string}
   */
  getSelectedStorageBackend() {
    if (this._usePlainTextEncryption) {
      return 'basic_text';
    }
    return this._backend;
  }

  /**
   * Forces the module to use an in-memory password when valid OS password manager cannot be determined.
   * @param {boolean} usePlainText
   */
  setUsePlainTextEncryption(usePlainText) {
    if (typeof usePlainText !== 'boolean') {
      throw new TypeError('usePlainText must be a boolean');
    }
    this._usePlainTextEncryption = usePlainText;
  }

  /**
   * Encrypts the plaintext string into a Buffer.
   * Throws an error if encryption fails or is not available.
   * @param {string} plainText
   * @returns {Buffer}
   */
  encryptString(plainText) {
    if (typeof plainText !== 'string') {
      throw new TypeError('Plaintext must be a string');
    }

    if (!this.isEncryptionAvailable()) {
      throw new Error('Encryption is not available');
    }

    try {
      const iv = crypto.randomBytes(12);
      const cipher = crypto.createCipheriv('aes-256-gcm', this._key, iv);
      const encryptedData = Buffer.concat([
        cipher.update(plainText, 'utf8'),
        cipher.final(),
      ]);
      const authTag = cipher.getAuthTag();

      // Format: MAGIC + IV + AuthTag + Ciphertext
      return Buffer.concat([MAGIC_HEADER, iv, authTag, encryptedData]);
    } catch (err) {
      throw new Error(`Encryption failed: ${err.message}`);
    }
  }

  /**
   * Decrypts the encrypted Buffer back into a string.
   * Throws an error if decryption fails.
   * @param {Buffer} encrypted
   * @returns {string}
   */
  decryptString(encrypted) {
    if (!Buffer.isBuffer(encrypted)) {
      throw new TypeError('Encrypted data must be a Buffer');
    }

    const minLen = MAGIC_HEADER.length + 12 + 16;
    if (encrypted.length < minLen || !encrypted.subarray(0, MAGIC_HEADER.length).equals(MAGIC_HEADER)) {
      throw new Error('Decryption failed: invalid or unrecognized ciphertext header');
    }

    try {
      const ivStart = MAGIC_HEADER.length;
      const iv = encrypted.subarray(ivStart, ivStart + 12);
      const tagStart = ivStart + 12;
      const authTag = encrypted.subarray(tagStart, tagStart + 16);
      const ciphertext = encrypted.subarray(tagStart + 16);

      const decipher = crypto.createDecipheriv('aes-256-gcm', this._key, iv);
      decipher.setAuthTag(authTag);

      const decrypted = Buffer.concat([
        decipher.update(ciphertext),
        decipher.final(),
      ]);

      return decrypted.toString('utf8');
    } catch (err) {
      throw new Error(`Decryption failed: ${err.message}`);
    }
  }
}

/**
 * Factory function to create SafeStorageClient instance.
 * @param {object} [options]
 * @returns {SafeStorageClient}
 */
function createSafeStorage(options) {
  return new SafeStorageClient(options);
}

module.exports = {
  getSafeStorageDeclarations,
  SUPPORTED_STORAGE_BACKENDS: Array.from(SUPPORTED_STORAGE_BACKENDS),
  SafeStorageClient,
  createSafeStorage,
};
package-lock.json
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package.json
{
  "name": "sample-electron-safestorage",
  "version": "1.0.0",
  "description": "verify electron.safeStorage in pkg:npm/electron@38.8.6",
  "main": "index.js",
  "license": "MIT-0",
  "dependencies": {
    "electron": "38.8.6"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify electron.safeStorage in pkg:npm/electron@38.8.6",
  "kind": "HOW",
  "packages": [
    "pkg:npm/electron@38.8.6"
  ],
  "symbols": [
    "electron.safeStorage"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}
test/contract.cjs
'use strict';

const assert = require('node:assert');
const {
  getSafeStorageDeclarations,
  SUPPORTED_STORAGE_BACKENDS,
  SafeStorageClient,
  createSafeStorage,
} = require('../index.js');

async function runTests() {
  // Contract 1: electron type definitions declare SafeStorage interface with isEncryptionAvailable, encryptString, decryptString, setUsePlainTextEncryption, and getSelectedStorageBackend methods
  {
    const decl = getSafeStorageDeclarations();
    assert.strictEqual(decl.hasSafeStorageInterface, true, 'SafeStorage interface must exist in electron.d.ts');
    assert.strictEqual(decl.isMainExported, true, 'safeStorage must be exported in Main namespace');
    assert.strictEqual(decl.isCrossProcessExported, true, 'safeStorage must be exported in CrossProcessExports namespace');
    assert.strictEqual(decl.isTopLevelExported, true, 'safeStorage must be exported at top-level namespace');

    const expectedMethods = [
      'isEncryptionAvailable',
      'encryptString',
      'decryptString',
      'setUsePlainTextEncryption',
      'getSelectedStorageBackend',
    ];

    for (const method of expectedMethods) {
      assert.ok(
        decl.methods.includes(method),
        `SafeStorage declaration must contain '${method}' method`
      );
    }
  }

  // Contract 2: safeStorage isEncryptionAvailable reports encryption availability status and getSelectedStorageBackend returns storage provider on Linux platforms
  {
    const defaultStorage = createSafeStorage();
    assert.strictEqual(defaultStorage.isEncryptionAvailable(), true, 'Default storage should be available');
    assert.strictEqual(typeof defaultStorage.getSelectedStorageBackend(), 'string');
    assert.ok(
      SUPPORTED_STORAGE_BACKENDS.includes(defaultStorage.getSelectedStorageBackend()),
      'Backend must be one of the supported Linux storage backend identifiers'
    );

    const customStorage = createSafeStorage({ available: false, backend: 'kwallet6' });
    assert.strictEqual(customStorage.isEncryptionAvailable(), false, 'Explicitly unavailable storage should report false');
    assert.strictEqual(customStorage.getSelectedStorageBackend(), 'kwallet6');
  }

  // Contract 3: safeStorage setUsePlainTextEncryption configures plain-text fallback behavior when OS keyring is unavailable
  {
    const storage = createSafeStorage({ available: false, backend: 'unknown' });
    assert.strictEqual(storage.isEncryptionAvailable(), false);
    assert.strictEqual(storage.getSelectedStorageBackend(), 'unknown');

    // Enabling plain text encryption overrides availability and sets backend to basic_text
    storage.setUsePlainTextEncryption(true);
    assert.strictEqual(storage.isEncryptionAvailable(), true, 'Encryption becomes available with plain text fallback');
    assert.strictEqual(storage.getSelectedStorageBackend(), 'basic_text', 'Backend becomes basic_text');

    // Disabling reverts to base availability
    storage.setUsePlainTextEncryption(false);
    assert.strictEqual(storage.isEncryptionAvailable(), false);
    assert.strictEqual(storage.getSelectedStorageBackend(), 'unknown');

    // Throws on non-boolean
    assert.throws(
      () => storage.setUsePlainTextEncryption('true'),
      /usePlainText must be a boolean/,
      'setUsePlainTextEncryption must reject non-boolean inputs'
    );
  }

  // Contract 4: safeStorage encryptString encrypts plaintext into secure buffer and throws on invalid inputs or when encryption is unavailable
  {
    const storage = createSafeStorage();
    const plainText = 'super-secret-api-token-12345';
    const encrypted = storage.encryptString(plainText);

    assert.ok(Buffer.isBuffer(encrypted), 'encryptString must return a Buffer');
    assert.ok(encrypted.length > plainText.length, 'Encrypted buffer includes headers and auth tags');
    assert.notStrictEqual(encrypted.toString('utf8'), plainText, 'Ciphertext must not match plaintext');

    // Rejects non-string inputs
    assert.throws(
      () => storage.encryptString(12345),
      /Plaintext must be a string/,
      'encryptString must reject non-string input'
    );
    assert.throws(
      () => storage.encryptString(null),
      /Plaintext must be a string/,
      'encryptString must reject null input'
    );

    // Throws when encryption is unavailable
    const unavailableStorage = createSafeStorage({ available: false });
    assert.throws(
      () => unavailableStorage.encryptString('test-secret'),
      /Encryption is not available/,
      'encryptString must throw when encryption is unavailable'
    );
  }

  // Contract 5: safeStorage decryptString correctly recovers original plaintext from encrypted buffer and throws on corrupted or invalid payloads
  {
    const storage = createSafeStorage();

    // Roundtrip simple ASCII
    const token = 'Bearer csx_auth_sample_token_xyz';
    const encryptedToken = storage.encryptString(token);
    assert.strictEqual(storage.decryptString(encryptedToken), token);

    // Roundtrip empty string
    const emptyEnc = storage.encryptString('');
    assert.strictEqual(storage.decryptString(emptyEnc), '');

    // Roundtrip Unicode / multi-byte characters
    const unicodeText = 'Electron 安全存储 🔒 한국어 데이터 테스트 🚀';
    const encryptedUnicode = storage.encryptString(unicodeText);
    assert.strictEqual(storage.decryptString(encryptedUnicode), unicodeText);

    // Roundtrip across plain-text fallback mode
    const fallbackStorage = createSafeStorage({ available: false });
    fallbackStorage.setUsePlainTextEncryption(true);
    const fbEnc = fallbackStorage.encryptString('fallback-secret');
    assert.strictEqual(fallbackStorage.decryptString(fbEnc), 'fallback-secret');

    // Rejects non-Buffer
    assert.throws(
      () => storage.decryptString('not-a-buffer'),
      /Encrypted data must be a Buffer/,
      'decryptString must reject non-Buffer inputs'
    );

    // Corrupted payload throws
    const tampered = Buffer.from(encryptedToken);
    tampered[tampered.length - 1] ^= 0xff; // Flip a bit in ciphertext / tag
    assert.throws(
      () => storage.decryptString(tampered),
      /Decryption failed/,
      'decryptString must throw on tampered ciphertext'
    );

    // Truncated / malformed header buffer throws
    const invalidHeader = Buffer.from('INVALID_HEADER_DATA_PADDING_LONG_ENOUGH_1234567890');
    assert.throws(
      () => storage.decryptString(invalidHeader),
      /Decryption failed: invalid or unrecognized ciphertext header/,
      'decryptString must throw on invalid header'
    );
  }

  console.log('All contracts passed successfully.');
}

runTests().catch((err) => {
  console.error('Contract test failed:', err);
  process.exit(1);
});

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