@voidkey/broker-core/dist/auth/client-credentials-provider.js

Core credential minting logic for the voidkey zero-trust credential broker

"use strict";
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var __importStar = (this && this.__importStar) || (function () {
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Object.defineProperty(exports, "__esModule", { value: true });
exports.ClientCredentialsProvider = void 0;
const jwt = __importStar(require("jsonwebtoken"));
/**
 * Client credentials OAuth2 flow for broker authentication
 */
class ClientCredentialsProvider {
    constructor(config) {
        this.config = config;
    }
    getType() {
        return 'client-credentials';
    }
    getName() {
        return this.config.name;
    }
    async acquireToken() {
        const tokenRequest = {
            grant_type: 'client_credentials',
            client_id: this.config.clientId,
            client_secret: this.config.clientSecret,
        };
        if (this.config.audience) {
            tokenRequest.audience = this.config.audience;
        }
        if (this.config.scope) {
            tokenRequest.scope = this.config.scope;
        }
        const fetch = global.__TEST_FETCH__ || require('node-fetch');
        const response = await fetch(this.config.tokenEndpoint, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/x-www-form-urlencoded',
            },
            body: new URLSearchParams(tokenRequest).toString()
        });
        if (!response.ok) {
            const errorText = await response.text();
            throw new Error(`Failed to acquire broker token: ${response.status} ${errorText}`);
        }
        const tokenData = await response.json();
        if (!tokenData.access_token) {
            throw new Error('No access_token in broker token response');
        }
        return tokenData.access_token;
    }
    async isTokenValid(token) {
        try {
            const decoded = jwt.decode(token);
            if (!decoded || !decoded.exp) {
                return false;
            }
            // Check if token is expired (with 30 second buffer)
            return Date.now() < (decoded.exp * 1000 - 30000);
        }
        catch {
            return false;
        }
    }
    async getTokenExpiry(token) {
        try {
            const decoded = jwt.decode(token);
            if (!decoded || !decoded.exp) {
                return null;
            }
            return decoded.exp * 1000;
        }
        catch {
            return null;
        }
    }
}
exports.ClientCredentialsProvider = ClientCredentialsProvider;
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