Rocket.Chat/ee/server/api/licenses.ts

import { check } from 'meteor/check';

import { getLicenses, validateFormat, flatModules, getMaxActiveUsers } from '../../app/license/server/license';
import { Settings, Users } from '../../../app/models/server';
import { API } from '../../../app/api/server/api';
import { hasPermission } from '../../../app/authorization/server';
import { ILicense } from '../../app/license/definitions/ILicense';

function licenseTransform(license: ILicense): ILicense {
	return {
		...license,
		modules: flatModules(license.modules),
	};
}

API.v1.addRoute(
	'licenses.get',
	{ authRequired: true },
	{
		get() {
			if (!hasPermission(this.userId, 'view-privileged-setting')) {
				return API.v1.unauthorized();
			}

			const licenses = getLicenses()
				.filter(({ valid }) => valid)
				.map(({ license }) => licenseTransform(license));

			return API.v1.success({ licenses });
		},
	},
);

API.v1.addRoute(
	'licenses.add',
	{ authRequired: true },
	{
		post() {
			check(this.bodyParams, {
				license: String,
			});

			if (!hasPermission(this.userId, 'edit-privileged-setting')) {
				return API.v1.unauthorized();
			}

			const { license } = this.bodyParams;
			if (!validateFormat(license)) {
				return API.v1.failure('Invalid license');
			}

			Settings.updateValueById('Enterprise_License', license);

			return API.v1.success();
		},
	},
);

API.v1.addRoute(
	'licenses.maxActiveUsers',
	{ authRequired: true },
	{
		get() {
			const maxActiveUsers = getMaxActiveUsers() || null;
			const activeUsers = Users.getActiveLocalUserCount();

			return API.v1.success({ maxActiveUsers, activeUsers });
		},
	},
);