Differential D7561 Diff 26279 keyserver/src/utils/olm-utils.js

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keyserver/src/utils/olm-utils.js

	// @flow			// @flow

	import olm from '@commapp/olm';			import olm from '@commapp/olm';
	import type { Utility as OlmUtility } from '@commapp/olm';			import type {
	import invariant from 'invariant';			Account as OlmAccount,
				Utility as OlmUtility,
				} from '@commapp/olm';
				import uuid from 'uuid';

	import { getCommConfig } from 'lib/utils/comm-config.js';			type PickledOlmAccount = {

	type OlmConfig = {
	+picklingKey: string,			+picklingKey: string,
	+pickledAccount: string,			+pickledAccount: string,
	};			};

	async function getOlmConfig(): Promise<OlmConfig> {			async function createPickledOlmAccount(): Promise<PickledOlmAccount> {
	const olmConfig = await getCommConfig({			await olm.init();
	folder: 'secrets',			const account = new olm.Account();
	name: 'olm_config',			account.create();
	});
	invariant(olmConfig, 'OLM config missing');			const picklingKey = uuid.v4();
	return olmConfig;			const pickledAccount = account.pickle(picklingKey);

				return {
				picklingKey: picklingKey,
				pickledAccount: pickledAccount,
				};
				}

				async function unpickleOlmAccount(
				pickledOlmAccount: PickledOlmAccount,
				): Promise<OlmAccount> {
				await olm.init();
				const account = new olm.Account();

				account.unpickle(
				pickledOlmAccount.picklingKey,
				pickledOlmAccount.pickledAccount,
				);
				return account;
	}			}

	let cachedOLMUtility: OlmUtility;			let cachedOLMUtility: OlmUtility;
	function getOlmUtility(): OlmUtility {			function getOlmUtility(): OlmUtility {
	if (cachedOLMUtility) {			if (cachedOLMUtility) {
	return cachedOLMUtility;			return cachedOLMUtility;
	}			}
	cachedOLMUtility = new olm.Utility();			cachedOLMUtility = new olm.Utility();
	return cachedOLMUtility;			return cachedOLMUtility;
	}			}

	export { getOlmConfig, getOlmUtility };			export { createPickledOlmAccount, getOlmUtility, unpickleOlmAccount };