37 lines
1.4 KiB
Plaintext
37 lines
1.4 KiB
Plaintext
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.decodeJwt = void 0;
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const base64url_js_1 = require("./base64url.js");
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const buffer_utils_js_1 = require("../lib/buffer_utils.js");
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const is_object_js_1 = require("../lib/is_object.js");
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const errors_js_1 = require("./errors.js");
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function decodeJwt(jwt) {
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if (typeof jwt !== 'string')
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throw new errors_js_1.JWTInvalid('JWTs must use Compact JWS serialization, JWT must be a string');
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const { 1: payload, length } = jwt.split('.');
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if (length === 5)
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throw new errors_js_1.JWTInvalid('Only JWTs using Compact JWS serialization can be decoded');
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if (length !== 3)
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throw new errors_js_1.JWTInvalid('Invalid JWT');
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if (!payload)
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throw new errors_js_1.JWTInvalid('JWTs must contain a payload');
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let decoded;
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try {
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decoded = (0, base64url_js_1.decode)(payload);
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}
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catch {
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throw new errors_js_1.JWTInvalid('Failed to base64url decode the payload');
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}
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let result;
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try {
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result = JSON.parse(buffer_utils_js_1.decoder.decode(decoded));
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}
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catch {
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throw new errors_js_1.JWTInvalid('Failed to parse the decoded payload as JSON');
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}
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if (!(0, is_object_js_1.default)(result))
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throw new errors_js_1.JWTInvalid('Invalid JWT Claims Set');
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return result;
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}
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exports.decodeJwt = decodeJwt;
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