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88c4c60 | 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 | import crypto from "crypto";
/**
* Generate PKCE code verifier (43-128 characters)
*
* @param {number} [bytes=32] number of random bytes (xAI uses 96)
*/
export function generateCodeVerifier(bytes = 32) {
return crypto.randomBytes(bytes).toString("base64url");
}
/**
* Generate PKCE code challenge from verifier (S256 method)
*/
export function generateCodeChallenge(verifier) {
return crypto.createHash("sha256").update(verifier).digest("base64url");
}
/**
* Generate random state for CSRF protection
*/
export function generateState() {
return crypto.randomBytes(32).toString("base64url");
}
/**
* Generate complete PKCE pair
*/
export function generatePKCE(bytes = 32) {
const codeVerifier = generateCodeVerifier(bytes);
const codeChallenge = generateCodeChallenge(codeVerifier);
const state = generateState();
return {
codeVerifier,
codeChallenge,
state,
};
}
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