@nats-io/jwt/lib/keys.js

NATS jwt.js

"use strict";
// Copyright 2021-2024 The NATS Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
Object.defineProperty(exports, "__esModule", { value: true });
exports.checkKey = void 0;
const nkeys_1 = require("./nkeys");
function parseKey(v) {
    if (v instanceof Uint8Array) {
        v = new TextDecoder().decode(v);
    }
    if (v.charAt(0) === "S") {
        return (0, nkeys_1.fromSeed)(new TextEncoder().encode(v));
    }
    return (0, nkeys_1.fromPublic)(v);
}
function checkKey(v, type = "", seed = false) {
    const kp = (typeof v === "string" || v instanceof Uint8Array)
        ? parseKey(v)
        : v;
    const k = kp.getPublicKey();
    const types = [];
    if (!Array.isArray(type)) {
        if (type !== "") {
            types.push(type);
        }
    }
    else {
        types.push(...type);
    }
    if (type.length > 0 && types.indexOf(k.charAt(0)) === -1) {
        throw new Error(`unexpected type ${k.charAt(0)} - wanted ${types}`);
    }
    if (seed) {
        // throws
        kp.getPrivateKey();
    }
    return kp;
}
exports.checkKey = checkKey;
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