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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | 42x 66x 42x 42x 42x 42x 66x 66x 66x 66x | export function isSubtleCryptoAvailable(): boolean {
return typeof crypto !== 'undefined' && typeof crypto.subtle !== 'undefined';
}
export function isNodeCryptoAvailable<T>(
withFeature: (nodeCrypto: typeof import('crypto')) => boolean | T
): false | T;
export function isNodeCryptoAvailable<T>(
withFeature?: (nodeCrypto: typeof import('crypto')) => boolean | T
): boolean | T {
try {
const resolvedResult = require.resolve('crypto');
Iif (!resolvedResult) {
return false;
}
const cryptoModule = require('crypto') as typeof import('crypto');
Iif (!cryptoModule) return false;
Iif (withFeature) return withFeature(cryptoModule);
return true;
} catch (error) {
return false;
}
}
export const NO_CRYPTO_LIB =
'Crypto lib not found. Either the WebCrypto "crypto.subtle" or Node.js "crypto" module must be available.';
export interface WebCryptoLib {
lib: Crypto; // Note this is the typedef for the Web Crypto API, included with typescript
name: 'webCrypto';
}
export interface NodeCryptoLib {
lib: typeof import('crypto');
name: 'nodeCrypto';
}
// Make async for future version which may lazy load.
// eslint-disable-next-line @typescript-eslint/require-await
export async function getCryptoLib(): Promise<WebCryptoLib | NodeCryptoLib> {
Iif (isSubtleCryptoAvailable()) {
return {
lib: crypto,
name: 'webCrypto',
};
} else {
try {
const nodeCrypto = require('crypto') as typeof import('crypto');
return {
lib: nodeCrypto,
name: 'nodeCrypto',
};
} catch (error) {
throw new Error(NO_CRYPTO_LIB);
}
}
}
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