tiny-crypto-suite/dist/TinyOlm/FakeMatrixServer.mjs

Tiny tools, big crypto — seamless encryption and certificate handling for modern web and Node apps.

import clone from 'clone';
/**
 * Simulates a basic Matrix server handling identity and one-time keys.
 * @class
 */
class FakeMatrixServer {
    constructor() {
        /**
         * @type {Map<string, {curve25519: string, ed25519: string}>}
         */
        this.identityKeys = new Map();
        /**
         * @type {Map<string, Record<string, {key: string}>>}
         */
        this.oneTimeKeys = new Map();
    }
    /**
     * Uploads the identity keys for a user.
     * @param {string} username - The user's Matrix ID.
     * @param {{curve25519: string, ed25519: string}} identityKeys - The user's identity keys.
     */
    uploadIdentityKeys(username, identityKeys) {
        this.identityKeys.set(username, clone(identityKeys));
    }
    /**
     * Uploads one-time keys for a user.
     * @param {string} username - The user's Matrix ID.
     * @param {Record<string, {key: string}>} oneTimeKeys - One-time keys.
     */
    uploadOneTimeKeys(username, oneTimeKeys) {
        this.oneTimeKeys.set(username, clone(oneTimeKeys));
    }
    /**
     * Fetches the Curve25519 identity key for a user.
     * @param {string} username - The user's Matrix ID.
     * @returns {string|null} The Curve25519 key or null if not found.
     */
    fetchIdentityKey(username) {
        return clone(this.identityKeys.get(username))?.curve25519 ?? null;
    }
    /**
     * Fetches and removes a one-time key for a user.
     * @param {string} username - The user's Matrix ID.
     * @returns {string|null} The one-time key or null if none available.
     */
    fetchOneTimeKey(username) {
        const keys = this.oneTimeKeys.get(username);
        if (!keys || Object.keys(keys).length === 0) {
            console.warn(`[Server] No one-time keys left for ${username}`);
            return null;
        }
        const [keyId, keyObj] = Object.entries(keys)[0];
        delete keys[keyId];
        return clone(keyObj.key);
    }
}
export default FakeMatrixServer;