feat: add license info

app/core/modules/info/get-license.ts

@@ -0,0 +1,46 @@
+/*!
+ * Copyright 2019-2021 Lime Technology Inc. All rights reserved.
+ * Written by: Alexis Tyler
+ */
+
+import fs from 'fs';
+import { varState } from '../../states';
+import { CoreContext, CoreResult } from '../../types';
+import { ensurePermission } from '../../utils';
+
+/**
+ * Get server's license info
+ *
+ * @memberof Core
+ * @module info/get-license
+ */
+export const getLicense = async function (context: CoreContext): Promise<CoreResult> {
+	const { user } = context;
+
+	// Check permissions
+	ensurePermission(user, {
+		resource: 'license',
+		action: 'read',
+		possession: 'any'
+	});
+
+	// Get license data
+	const type = varState.data.regTy;
+	const state = (varState.data.regCheck.trim() === '' ? type : varState.data.regCheck).toUpperCase();
+	const file = await fs.promises.readFile(varState.data.regFile, 'utf-8');
+	const parsedFile = Buffer.from(file).toString('base64').trim().replace('+', '-').replace('/', '_').replace('=', '');
+
+	return {
+		get text() {
+			return `License type: ${type}\nState: ${state}`;
+		},
+		get json() {
+			return {
+				type,
+				state,
+				file: parsedFile
+			};
+		}
+	};
+};
+