16 lines
510 B
TypeScript
16 lines
510 B
TypeScript
import crypto from 'crypto';
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import { Buffer } from 'buffer';
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export function base64ToUrlSafe(v: string) {
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return v.replace(/\//g, '_').replace(/\+/g, '-');
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}
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export function hmacSha1(encodedFlags: any, secretKey: string) {
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const hmac = crypto.createHmac('sha1', secretKey);
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hmac.update(encodedFlags);
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return hmac.digest('base64');
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}
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export function urlSafeBase64Encode(jsonFlags: string) {
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const encoded = Buffer.from(jsonFlags).toString('base64');
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return base64ToUrlSafe(encoded);
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}
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