luci/applications/luci-app-wol/root/usr/share/rpcd/ucode/luci.wol

#!/usr/bin/ucode

'use strict';

import { access, stat, popen } from 'fs';

const etherwake = '/usr/bin/etherwake';
const wakeonlan = '/usr/bin/wakeonlan';


function shellquote(s) {
    return "'" + replace(s, "'", "'\\''") + "'";
}


const methods = {
	stat: {
		call: function(request) {
			const result = {};

			result.etherwake = false;
			result.wakeonlan = false;

			if (access(etherwake, "x")) {
				result.etherwake = true;
			}

			if (access(wakeonlan, "x")) {
				result.wakeonlan = true;
			}

			return result;
		}
	},

	exec: {
		args: { name: 'string', args: [] },
		call: function(request) {
			const result = {};
			if (request.args.name == etherwake || request.args.name == wakeonlan) {
				parts = map(request.args.args, shellquote);
				const fd = popen(request.args.name + ' ' + join(' ', parts));

				result.stdout = fd.read('all');
				result.stderr = '';
				result.code = fd.close();
			} else {
				result.stdout = '';
				result.stderr = 'disallowed';
				result.code = 1;
			}
			return result;
		}
	}
};

return { "luci.wol": methods };