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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.jwtDecode = exports.InvalidTokenError = void 0;
class InvalidTokenError extends Error {
}
exports.InvalidTokenError = InvalidTokenError;
InvalidTokenError.prototype.name = "InvalidTokenError";
function b64DecodeUnicode(str) {
return decodeURIComponent(atob(str).replace(/(.)/g, (m, p) => {
let code = p.charCodeAt(0).toString(16).toUpperCase();
if (code.length < 2) {
code = "0" + code;
}
return "%" + code;
}));
}
function base64UrlDecode(str) {
let output = str.replace(/-/g, "+").replace(/_/g, "/");
switch (output.length % 4) {
case 0:
break;
case 2:
output += "==";
break;
case 3:
output += "=";
break;
default:
throw new Error("base64 string is not of the correct length");
}
try {
return b64DecodeUnicode(output);
}
catch (err) {
return atob(output);
}
}
function jwtDecode(token, options) {
if (typeof token !== "string") {
throw new InvalidTokenError("Invalid token specified: must be a string");
}
options || (options = {});
const pos = options.header === true ? 0 : 1;
const part = token.split(".")[pos];
if (typeof part !== "string") {
throw new InvalidTokenError(`Invalid token specified: missing part #${pos + 1}`);
}
let decoded;
try {
decoded = base64UrlDecode(part);
}
catch (e) {
throw new InvalidTokenError(`Invalid token specified: invalid base64 for part #${pos + 1} (${e.message})`);
}
try {
return JSON.parse(decoded);
}
catch (e) {
throw new InvalidTokenError(`Invalid token specified: invalid json for part #${pos + 1} (${e.message})`);
}
}
exports.jwtDecode = jwtDecode;