edb614f985
Try app-internal key first (new format); on failure, signal the renderer to prompt for the old password and retry. Lets users import .mhu files that were exported with a custom password in v2.7.6 or earlier without downgrading.
74 lines
3.1 KiB
JavaScript
74 lines
3.1 KiB
JavaScript
const { describe, it } = require('node:test');
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const assert = require('node:assert/strict');
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const { encrypt, decrypt } = require('../lib/backup-crypto');
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describe('backup-crypto', () => {
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const sampleConfig = {
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hosters: { 'doodstream.com': { enabled: true, apiKey: 'test-key-123' } },
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hosterSettings: { 'doodstream.com': { retries: 3 } },
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globalSettings: { alwaysOnTop: false },
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history: [{ file: 'test.mkv', link: 'https://example.com/abc' }]
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};
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it('encrypt then decrypt round-trips', () => {
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const buf = encrypt(sampleConfig);
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const result = decrypt(buf);
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assert.deepStrictEqual(result, sampleConfig);
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});
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it('decrypt with corrupted data throws', () => {
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const buf = encrypt(sampleConfig);
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buf[buf.length - 1] ^= 0xff; // flip last byte
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// With no password: app-key fails → needsPassword surfaces.
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assert.throws(() => decrypt(buf), (err) => err.needsPassword === true);
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// With a password: both app-key and password fail → Falsches Passwort.
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assert.throws(() => decrypt(buf, 'anything'), /Falsches Passwort/);
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});
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it('decrypt with invalid magic throws', () => {
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// Buffer must be long enough to pass the length check (>= 4+16+12+16+1 = 49)
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const buf = Buffer.alloc(60, 0x41); // 60 bytes of 'A'
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assert.throws(() => decrypt(buf), /Keine gültige/);
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});
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it('decrypt with too-short buffer throws', () => {
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assert.throws(() => decrypt(Buffer.alloc(10)), /Ungültiges Backup-Format/);
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});
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it('handles empty config gracefully', () => {
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const empty = { hosters: {}, hosterSettings: {}, globalSettings: {}, history: [] };
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const buf = encrypt(empty);
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assert.deepStrictEqual(decrypt(buf), empty);
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});
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it('decrypts legacy password-encrypted buffer when password is provided', () => {
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// Reproduce the old format: same envelope, but key derived from user password.
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const crypto = require('crypto');
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const plaintext = Buffer.from(JSON.stringify(sampleConfig), 'utf-8');
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const salt = crypto.randomBytes(16);
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const iv = crypto.randomBytes(12);
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const key = crypto.pbkdf2Sync('oldUserPw', salt, 100_000, 32, 'sha512');
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const cipher = crypto.createCipheriv('aes-256-gcm', key, iv);
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const enc = Buffer.concat([cipher.update(plaintext), cipher.final()]);
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const tag = cipher.getAuthTag();
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const legacyBuf = Buffer.concat([Buffer.from('MHU1'), salt, iv, tag, enc]);
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// Without password → should throw needsPassword
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assert.throws(() => decrypt(legacyBuf), (err) => err.needsPassword === true);
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// With correct password → should decrypt
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assert.deepStrictEqual(decrypt(legacyBuf, 'oldUserPw'), sampleConfig);
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// With wrong password → should throw (not needsPassword)
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assert.throws(() => decrypt(legacyBuf, 'wrongPw'), /Falsches Passwort/);
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});
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it('each encryption produces different output (random salt/iv)', () => {
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const a = encrypt(sampleConfig);
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const b = encrypt(sampleConfig);
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assert.ok(!a.equals(b), 'two encryptions should differ');
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// but both decrypt to same result
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assert.deepStrictEqual(decrypt(a), decrypt(b));
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});
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});
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