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blhub.js
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blhub.js
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'use strict';
const fs = require('fs');
const crypto = require('crypto');
const broadlinkProbe = require('broadlink-core');
const findBroadcastAddresses = require('broadlink-core/util.js').findBroadcastAddresses;
const checksum = require('broadlink-core/util.js').checksum;
const ipaddr = require('ipaddr.js');
const Optist = require('optist');
const ou = require('optist/util');
const KeepTime = require('keeptime');
const ApiSrv = require('tr-apisrv');
const WebSocket = require('ws');
const sleeper = require('./sleeper.js');
const mimetype = require('./mimetype.js');
var d = {
ips: new Map(),
ipsSeen: new Set(),
devs: new Map(),
failed: new Map(),
seen: new Map(),
wss: new WebSocket.Server({ noServer: true }),
packageData: JSON.parse(fs.readFileSync('./package.json', 'utf8')),
unreachableNotifier: new Map()
};
if ((process.argv.length == 3) && (process.argv[2] === '--version')) {
console.log(d.packageData.name + ' version ' + d.packageData.version);
process.exit(0);
}
// Rewriting the command line parameters for the happy case that this
// is actually run in Hassio addon instead of independently. In that
// case, most of the command line parameters comes from addon
// configuration. Usual command line parameters from Hassio addon are
// exactly following: --listen-address=0.0.0.0 --listen-port=8525
// --hassio-addon-config=/data/options.json
{
let av = [];
let hassio = false;
av.push(process.argv.shift());
av.push(process.argv.shift());
while (process.argv.length > 0) {
try {
let m, a = process.argv.shift();
if (m = a.match(/^--hassio-addon-config=(.*)$/)) {
if (hassio) {
throw new Error("Only one --hassio-addon-config is allowed");
}
hassio = true;
let options = JSON.parse(fs.readFileSync(m[1], 'utf8'));
if (options.debug) {
av.push('--debug');
}
if (options.name) {
av.push('--name=' + options.name);
}
if (options.user) {
av.push('--user=' + options.user);
}
if (options.password) {
av.push('--password=' + options.password);
}
if (options.password_hash) {
if (options.password_hash.toLowerCase() !== 'none') {
av.push('--password-hash=' + options.password_hash);
}
}
if (options.device_timeout) {
av.push('--device-timeout=' + options.device_timeout);
}
if (options.power_set_timeout) {
av.push('--power-set-timeout=' + options.power_set_timeout);
}
if (options.update_interval) {
av.push('--update-interval=' + options.update_interval);
}
if (options.unreachable_grace_time) {
av.push('--unreachable-grace-time=' + options.unreachable_grace_time);
}
if (options.device_ips) {
options.device_ips.forEach(function(x) { av.push('--ip=' + x); });
}
if (options.device_ip_ranges) {
options.device_ip_ranges.forEach(function(x) { av.push('--ip-range=' + x); });
}
} else {
av.push(a);
}
} catch (e) {
console.log(e);
process.exit(1);
}
}
process.argv = av;
}
var opt = ((new Optist())
.opts([ { longName: 'listen-address',
description: 'IP address the server listens to',
hasArg: true,
defaultValue: '127.0.0.1',
optArgCb: ou.ipv4 },
{ longName: 'listen-port',
description: 'TCP port the server listens to',
hasArg: true,
optArgCb: ou.integerWithLimitsCbFactory(1, 65535),
required: true },
{ longName: 'user',
description: 'Username for basic authentication',
hasArg: true,
requiresAlso: [ 'password' ] },
{ longName: 'password',
description: 'Password for basic authentication',
hasArg: true,
requiresAlso: [ 'user' ] },
{ longName: 'password-hash',
description: 'Hash function for password',
hasArg: true,
optArgCb: ou.allowListCbFactory(crypto.getHashes()),
requiresAlso: [ 'password' ] },
{ longName: 'device-timeout',
description: 'Timeout in milliseconds to wait for device to answer',
hasArg: true,
optArgCb: ou.integerWithLimitsCbFactory(1, 60000),
defaultValue: '1000' },
{ longName: 'power-set-timeout',
description: 'Timeout in milliseconds for device to react to power command',
hasArg: true,
optArgCb: ou.integerWithLimitsCbFactory(1, 60000),
defaultValue: '10000' },
{ longName: 'update-interval',
description: 'Timeout in milliseconds between device polls',
hasArg: true,
optArgCb: ou.integerWithLimitsCbFactory(1, 60000),
defaultValue: '10000' },
{ longName: 'unreachable-grace-time',
description: 'Delay in milliseconds before device going unreachable is notified',
hasArg: true,
optArgCb: ou.integerWithLimitsCbFactory(1, 60000),
defaultValue: '10000' },
{ longName: 'ip',
description: 'IP address the server probes for device',
multi: true,
hasArg: true,
optArgCb: ou.ipv4 },
{ longName: 'ip-range',
description: 'Range of IP addresses (max 100) the server probes for device',
multi: true,
hasArg: true,
optArgCb: function(v) { return ipRangeExpandCb(v, 100); } },
{ longName: 'name',
description: 'Name of the controller (e.g. "Home")',
hasArg: true,
defaultValue: '' },
{ longName: 'debug',
shortName: 'd',
description: 'Enable debug.' },
{ longName: 'broadcast',
description: 'Local IP address or network interface name sending broadcasts',
hasArg: true,
optArgCb: broadcastSourceCb }
])
.help(d.packageData.name)
.parse(undefined, 0, 0));
var debug = opt.value('debug');
function broadcastSourceCb(value) {
let x;
try {
x = findBroadcastAddresses(value);
} catch(e) {
x = undefined;
}
return x ? value : undefined;
}
(async function() {
d.wss.on('connection', wsCb);
var srv = new ApiSrv({ port: opt.value('listen-port'),
address: opt.value('listen-address'),
callback: cb,
authCallback: authCb,
upgradeCallback: upgradeCb,
prettyPrintJsonResponses: true,
bodyReadTimeoutMs: 5000,
debug: debug
});
opt.value('ip').forEach(function(a) { d.ips.set(a, null); });
opt.value('ip-range').forEach(function(ar) { ar.forEach(function(a) { d.ips.set(a, null); }); });
await periodic();
})();
function notify(status, device) {
var s = JSON.stringify({ status: status, now: Date.now(), device: device });
d.wss.clients.forEach(function(ws) {
if (ws.readyState === WebSocket.OPEN) {
ws.send(s);
}
});
}
function exportDev(dev) {
var r = {
uid: dev.uid,
name: dev.name,
address: dev.address,
port: dev.port,
mac: Array.from(dev.mac).reduce(function(a, b) { return (((a === '') ? '' : (a + ':')) + (('0' + b.toString(16)).slice(-2))); }, ''),
devClass: dev.devClass,
devType: dev.devType,
devTypeId: '0x' + (('000' + dev.devTypeId.toString(16)).slice(-4)),
udata: Object.assign({}, dev.udata)
}
return r;
}
var periodicRunReq = 0;
var periodicTimeout = null;
var broadcastTimeout = null;
var broadcastCtr = 0;
async function broadcast() {
if (broadcastTimeout) {
broadcastTimeout = null;
}
broadcastCtr++;
var bc = opt.value('broadcast');
if (! bc) {
return;
}
var dd = await broadlinkProbe(null, opt.value('device-timeout'), bc);
dd.forEach(function(dev) {
if (! d.ips.has(dev.address)) {
if (debug) {
console.log('Discovered class ' + dev.devClass + ' device at ' + dev.address);
}
d.ips.set(dev.address, null);
periodicRun();
}
});
var st = 60000;
if (broadcastCtr < 10) {
st = 1000;
} else if (broadcastCtr < 100) {
st = 10000;
}
broadcastTimeout = setTimeout(broadcast, st);
}
broadcast();
async function periodicRun() {
if (periodicTimeout) {
if (debug) {
console.log('running periodic now');
}
clearTimeout(periodicTimeout);
periodicTimeout = null;
return periodic();
}
if (debug) {
console.log('requesting running periodic once it completes');
}
return ++periodicRunReq;
}
async function periodic() {
periodicTimeout = null;
var pl = [];
function update(uid, ip) {
let dev, power, energy, sensors;
if (uid) {
dev = d.devs.get(uid);
pl.push(sleeper(1, 200)
.then(function() {
switch (dev.devClass) {
case 'sp2':
case 'sc1':
case 'sp3':
case 'sp3s':
case 'sp4':
case 'mcb1':
return checkPower(dev, opt.value('device-timeout'));
}
return undefined;
})
.then(function(ret) {
power = ret;
switch (dev.devClass) {
case 'sp3s':
return (power ? checkEnergy(dev, opt.value('device-timeout')) : 0.0);
}
return undefined;
})
.then(function(ret) {
energy = ret;
switch (dev.devClass) {
case 'a1':
return checkSensors(dev, opt.value('device-timeout'));
}
return undefined;
})
.then(function(ret) {
sensors = ret;
})
.then(function() {
let now = Date.now();
dev.udata.lastSeen = now;
d.seen.set(dev.uid, Date.now());
let update = false;
let udata = { lastSeen: dev.udata.lastSeen };
if ((power !== undefined) && (power != dev.udata.power)) {
dev.udata.power = udata.power = power;
update = true;
}
if ((energy !== undefined) && (energy != dev.udata.energy)) {
dev.udata.energy = udata.energy = energy;
update = true;
}
if (sensors !== undefined) {
Object.keys(sensors).forEach(function(k) {
if (dev.udata[k] !== sensors[k]) {
dev.udata[k] = sensors[k];
update = true;
}
});
}
if (update) {
notify('update', { uid: dev.uid, udata: udata });
}
return true;
})
.catch(function(e) {
if (debug) {
console.log(e);
}
d.devs.delete(dev.uid);
d.ips.set(dev.address, null);
scheduleUnreachableNotification(dev.uid)
dev.close();
d.failed.set(dev.uid, dev);
return false;
}));
} else {
{
pl.push(sleeper(1, 200)
.then(function() {
return broadlinkProbe(ip, opt.value('device-timeout'))
})
.then(function(ret) {
dev = ret;
d.ipsSeen.add(dev.address);
let old = d.devs.get(dev.uid);
if (old) {
d.devs.delete(dev.uid);
d.ips.set(old.address, null);
old.close();
scheduleUnreachableNotification(old.uid)
}
dev.udata = { lastSeen: null };
})
.then(function() {
switch (dev.devClass) {
case 'sp2':
case 'sc1':
case 'sp3':
case 'sp3s':
case 'sp4':
case 'mcb1':
return checkPower(dev, opt.value('device-timeout'));
}
return undefined;
})
.then(function(ret) {
power = ret;
switch (dev.devClass) {
case 'sp3s':
return (power ? checkEnergy(dev, opt.value('device-timeout')) : 0.0);
}
return undefined;
})
.then(function(ret) {
energy = ret;
switch (dev.devClass) {
case 'a1':
return checkSensors(dev, opt.value('device-timeout'));
}
return undefined;
})
.then(function(ret) {
sensors = ret;
})
.then(function() {
let now = Date.now();
dev.udata.lastSeen = now;
d.seen.set(dev.uid, Date.now());
if (power !== undefined) {
dev.udata.power = power;
}
if (energy !== undefined) {
dev.udata.energy = energy;
}
if (sensors !== undefined) {
Object.keys(sensors).forEach(function(k) {
dev.udata[k] = sensors[k];
});
}
d.ips.set(dev.address, dev.uid);
d.devs.set(dev.uid, dev);
d.seen.set(dev.uid, now);
notify('reachable', exportDev(dev));
return true;
})
.catch(function(e) {
if (dev) {
dev.close();
dev = undefined;
}
if (debug) {
console.log(e);
}
return false;
}));
}
}
}
d.ips.forEach(function(uid, ip) { update(uid, ip); });
await Promise.all(pl);
pl = [];
if (d.failed.size > 0) {
d.failed.forEach(function(dev, uid, map) { map.delete(uid); update(null, dev.address); });
await Promise.all(pl);
pl = [];
}
if (periodicRunReq) {
await sleeper(100, 200);
periodicRunReq = 0;
periodic();
return;
}
periodicTimeout = setTimeout(periodic, opt.value('update-interval'));
}
async function setPower(dev, power, timeoutMs) {
if (typeof(dev) === 'string') {
dev = d.devs.get(dev);
if (! dev) {
throw new Error('Device not online');
}
}
var p, r;
switch (dev.devClass) {
case 'sp1':
p = Buffer.alloc(16);
p[0] = power ? 1 : 0;
p[1] = 4;
p[2] = 4;
p[3] = 4;
r = await dev.call(0x66, p, timeoutMs);
break;
case 'sp2':
case 'sc1':
case 'sp3':
case 'sp3s':
p = Buffer.alloc(16);
p[0] = 2;
p[4] = power ? 1 : 0;
r = await dev.call(0x6a, p, timeoutMs);
break;
case 'sp4':
case 'mcb1':
p = sp4Encode(2, { pwr: (power ? 1 : 0), indicator: (power ? 1 : 0) });
r = await dev.call(0x6a, p, timeoutMs);
break;
default:
throw new Error('Power set not supported by device class');
}
return (power ? true : false);
}
async function checkEnergy(dev, timeoutMs) {
if (typeof(dev) === 'string') {
dev = d.devs.get(dev);
if (! dev) {
throw new Error('Device not online');
}
}
switch (dev.devClass) {
case 'sp3s':
break;
default:
throw new Error('Energy check not supported by device class');
}
var p = Buffer.from([8, 0, 254, 1, 5, 1, 0, 0, 0, 45, 0, 0, 0, 0, 0, 0]);
var r = await dev.call(0x6a, p, timeoutMs);
if (r.status !== 'ok') {
throw new Error('Error response from device');
}
if (r.command != 0x3ee) {
throw new Error('Unexpected response to energy check');
}
if (r.payload.length < 16) {
throw new Error('Truncated response to energy check');
}
if (r.payload[0] != 8) {
throw new Error('Unexpected response parameter to energy check');
}
let s = (('0' + r.payload[7].toString(16)).slice(-2) +
('0' + r.payload[6].toString(16)).slice(-2) +
('0' + r.payload[5].toString(16)).slice(-2));
if (! s.match(/^\d\d\d\d\d\d$/)) {
throw new Error('Unexpected format in energy check response');
}
let n = Number.parseInt(s, 10) / 100;
return n;
}
async function checkPower(dev, timeoutMs) {
if (typeof(dev) === 'string') {
dev = d.devs.get(dev);
if (! dev) {
throw new Error('Device not online');
}
}
var p;
switch (dev.devClass) {
case 'sp2':
case 'sc1':
case 'sp3':
case 'sp3s':
p = Buffer.alloc(16);
p[0] = 1;
break;
case 'sp4':
case 'mcb1':
p = sp4Encode(1, {});
break;
default:
throw new Error('Power check not supported by device class');
}
var r = await dev.call(0x6a, p, timeoutMs);
if (r.status !== 'ok') {
throw new Error('Error response from device');
}
if (r.command != 0x3ee) {
throw new Error('Unexpected response to power status check');
}
if (r.payload.length < 16) {
throw new Error('Truncated response to power status check');
}
switch (dev.devClass) {
case 'sp2':
case 'sc1':
case 'sp3':
case 'sp3s':
if (r.payload[0] != 1) {
throw new Error('Unexpected response parameter to power status check');
}
return (r.payload[4] ? true : false);
case 'sp4':
case 'mcb1':
{
let d = sp4Decode(r.payload);
if (d.pwr === 0) {
return false;
}
if (d.pwr === 1) {
return true;
}
throw new Error('Power status missing from response object');
}
}
}
async function checkSensors(dev, timeoutMs) {
if (typeof(dev) === 'string') {
dev = d.devs.get(dev);
if (! dev) {
throw new Error('Device not online');
}
}
switch (dev.devClass) {
case 'a1':
break;
default:
throw new Error('Sensor check not supported by device class');
}
var p = Buffer.alloc(16);
p[0] = 1;
var r = await dev.call(0x6a, p, timeoutMs);
if (r.status !== 'ok') {
throw new Error('Error response from device');
}
if (r.command != 0x3ee) {
throw new Error('Unexpected response to sensor check');
}
if (r.payload.length < 16) {
throw new Error('Truncated response to sensor check');
}
var rv = {
temperature: (r.payload[4] * 10 + r.payload[5]) / 10,
humidity: (r.payload[6] * 10 + r.payload[7]) / 10
};
switch (r.payload[8]) {
case 0:
rv.lightValue = 0;
rv.light = 'dark';
break;
case 1:
rv.lightValue = 1;
rv.light = 'dim';
break;
case 2:
rv.lightValue = 2;
rv.light = 'normal';
break;
case 3:
rv.lightValue = 3;
rv.light = 'bright';
break;
}
switch (r.payload[10]) {
case 0:
rv.airQualityValue = 0;
rv.airQuality = 'excellent';
break;
case 1:
rv.airQualityValue = 1;
rv.airQuality = 'good';
break;
case 2:
rv.airQualityValue = 2;
rv.airQuality = 'normal';
break;
case 3:
rv.airQualityValue = 3;
rv.airQuality = 'bad';
break;
}
switch (r.payload[12]) {
case 0:
rv.noiseValue = 0;
rv.noise = 'quiet';
break;
case 1:
rv.noiseValue = 1;
rv.noise = 'normal';
break;
case 2:
rv.noiseValue = 2;
rv.noise = 'noisy';
break;
}
return rv;
}
function sp4Encode(flag, data) {
var s = JSON.stringify(data);
if (s.length > 8192) {
throw new Error('Oversized SP4 object');
}
var p = Buffer.concat([ Buffer.from([ 0xa5, 0xa5, 0x5a, 0x5a, 0, 0, flag, 0x0b,
s.length & 0xff, s.length >> 8, 0, 0 ]),
Buffer.from(s, 'utf8') ]);
var crc = checksum(p, 0xbeaf);
p[4] = crc & 0xff;
p[5] = crc >> 8;
return p;
}
function sp4Decode(p) {
if (p.len < 16) {
throw new Error('Truncated SP4 input');
}
let crc = p.readUInt16LE(4);
p[4] = 0;
p[5] = 0;
if (crc != checksum(p, 0xbeaf)) {
return err(Error('CRC mismatch in SP4 payload checksum'));
}
var len = (p[9] * 256) + p[8];
if (p.len < (len + 12)) {
throw new Error('Truncated SP4 input (JSON length overflow)');
}
var r = JSON.parse(p.slice(12, 12 + len));
if (! (r && (typeof(r) === 'object'))) {
throw new Error('Invalid SP4 JSON response object');
}
return r;
}
async function authCb(r) {
var user = {
user: opt.value('user'),
password: opt.value('password')
};
if (user.user) {
r.auth = r.headers.authorization ? parseBasicAuth(r.headers.authorization) : undefined;
if (! (r.auth && (r.auth.user === user.user) && checkPassword(r.auth.password))) {
delete r.auth;
r.res.setHeader('WWW-Authenticate', 'Basic realm="oauth2/client"');
r.jsonResponse({ status: 'error', code: 401, message: 'Authentication is required' }, 401);
return false;
}
}
return true;
}
async function upgradeCb(r) {
if (r.url !== '/status') {
r.s.destroy();
return;
}
d.wss.handleUpgrade(r.req, r.s, r.head, function(ws) {
d.wss.emit('connection', ws);
});
return true;
}
async function cb(r) {
var res = r.res, m, rd;
delete r.res;
var error = function(code, msg) {
r.jsonResponse({ status: 'error', code: code, message: msg }, code);
}
switch (r.url) {
case '/status':
switch (r.method) {
case 'GET':
break;
default:
error(405, 'Method not allowed.');
return;
}
rd = { timestamp: Date.now(), devices: {} };
if (r.params['uid']) {
let dev = d.devs.get(r.params['uid']);
if (dev) {
rd.devices[r.params['uid']] = { status: 'reachable', device: exportDev(dev) };
} else if (d.seen.has(r.params['uid'])) {
rd.devices[r.params['uid']] = { status: 'unreachable', lastSeen: d.seen.get(r.params['uid']) };
} else {
rd.devices[r.params['uid']] = { status: 'unknown' };
}
} else {
d.devs.forEach(function(dev) {
rd.devices[dev.uid] = { status: 'reachable', device: exportDev(dev) };
});
d.seen.forEach(function(lastSeen, uid) {
if (! d.devs.has(uid)) {
rd.devices[uid] = { status: 'unreachable', lastSeen: lastSeen };
}
});
}
r.jsonResponse({ status: 'ok', code: 200, data: rd }, 200);
return;
case '/power':
switch (r.method) {
case 'GET':
break;
default:
error(405, 'Method not allowed.');
return;
}
if (! r.params['uid']) {
error(400, 'Missing uid');
return;
}
if (! r.params['power']) {
error(400, 'Missing power');
return;
}
if (! d.seen.has(r.params['uid'])) {
error(400, 'Unknown uid');
return;
}
if (! (['on', 'off'].indexOf(r.params['power']) >= 0)) {
error(400, 'Bad power');
return;
}
{
let power = (r.params['power'] === 'on');
let kt = new KeepTime(true);
do {
let rs = (await setPower(r.params['uid'], power, opt.value('device-timeout'))
.catch(function(e) {
if (debug) {
console.log(e);
}
return undefined;
}));
if (rs === undefined) {
periodicRun();
await sleeper(0, 500);
} else {
r.jsonResponse({ status: 'ok', code: 200, data: { uid: r.params['uid'], power: power } }, 200);
let dev = d.devs.get(r.params['uid']);
if (dev) {
dev.udata.lastSeen = Date.now();
dev.udata.power = power;
notify('update', { uid: dev.uid, udata: { lastSeen: dev.udata.lastSeen,
power: dev.udata.power } });
}
periodicRun();
return;
}
} while ((kt.get() * 1000) < opt.value('power-set-timeout'));
}
error(504, d.devs.has(r.params['uid']) ? 'Device timeout' : 'Device unreachable');
return;
case '/home-assistant-config':
switch (r.method) {
case 'GET':
break;
default:
error(405, 'Method not allowed.');
return;
}
{
let devs = [];
if (r.params['uid']) {
let dev = d.devs.get(r.params['uid']);
if (dev) {
devs.push(dev);
}
} else {
d.devs.forEach(function(dev) {
devs.push(dev);
});
}
if (devs.length < 1) {
error(404, 'Not found');
return;
}
devs.sort(function(a, b) {
return ((Buffer.from(ipaddr.IPv4.parse(a.address).toByteArray()).readUInt32BE()) -
(Buffer.from(ipaddr.IPv4.parse(b.address).toByteArray()).readUInt32BE())); });
res.setHeader('Content-Type', 'text/plain; charset=utf-8');
res.write('switch:' + "\n");
devs.forEach(function(dev) {
let cnf = haConf(dev);
if (cnf) {
res.write(cnf);
}
});
}
res.end();
return;
default:
switch (r.method) {
case 'GET':
break;
default:
error(405, 'Method not allowed.');
return;
}
{
let fn, mt, d;
if (r.url === '/') {
fn = './htdocs/index.html';
mt = mimetype(fn);
} else if (r.url.match(/^\/[a-zA-Z0-9]([a-zA-Z0-9_.-]{0,62}[a-zA-Z0-9])?$/)) {
switch (r.url) {
case '/LICENSE':
fn = './LICENSE';
mt = mimetype(fn + '.txt');
break;
default:
fn = './htdocs' + r.url;
mt = mimetype(fn);
}
} else {
error(404, 'Not found');
return;
}
d = fs.createReadStream(fn);
d.on('error', function(e) {
if (debug) {
console.log(e);
}
error(404, 'Not found');
});
d.on('open', function() {
res.setHeader('Content-Type', mt);
d.pipe(res);
});
return;
}
}
error(404, 'Not found');
}
function unreachableNotificationScheduled(uid) {
return d.unreachableNotifier.has(uid);
}
function scheduleUnreachableNotification(uid) {
cancelUnreachableNotification(uid);
function notifyUnreachable() {
d.unreachableNotifier.delete(uid);
if (d.devs.has(uid)) {
return;
}
notify('unreachable', { uid: uid });
}
d.unreachableNotifier.set(uid, setTimeout(notifyUnreachable, opt.value('unreachable-grace-time')));
}
function cancelUnreachableNotification(uid) {
var timeout;
if (uid) {
timeout = d.unreachableNotifier.get(uid);
if (timeout) {
clearTimeout(timeout);
timeout = undefined;
d.unreachableNotifier.delete(uid);
}
} else {
Array.from(d.unreachableNotifier.keys()).forEach(cancelUnreachableNotification);
}
}
function ipRangeExpandCb(range, maxAddresses) {
var m, s, e, i, c, r = [];
if (! (typeof(range) === 'string')) {
return undefined;
}
if (m = range.match(/^([^-]+)-([^-]+)$/)) {
s = m[1];
e = m[2];
} else {
s = e = range;
}
if (! (ipaddr.IPv4.isValid(s) && ipaddr.IPv4.isValid(e))) {
return undefined;
}
s = Buffer.from(ipaddr.IPv4.parse(s).toByteArray()).readUInt32BE();
e = Buffer.from(ipaddr.IPv4.parse(e).toByteArray()).readUInt32BE();
if ((maxAddresses !== undefined) && (maxAddresses !== null) && (Math.abs(e - s) > maxAddresses)) {
return undefined;
}
c = (e > s) ? 1 : -1;
i = s - c;
do {
i += c;
r.push(((i >> 24) & 0xff).toString() + '.' +
((i >> 16) & 0xff).toString() + '.' +
((i >> 8) & 0xff).toString() + '.' +
(i & 0xff).toString());
} while(i != e);
return r;
}
function wsCb(ws) {
ws.on('message', function (data) {
var r;
try {
r = JSON.parse(data);
} catch (e) {
r = undefined;
}
if (! (r &&
(typeof(r) === 'object') &&
((((typeof(r.command) === 'string') ? 1 : 0) + ((typeof(r.status) === 'string') ? 1 : 0)) == 1))) {
ws.close();
}
if (typeof(r.status) === 'string') {
return;
}
switch (r.command) {
case 'ping':
ws.send(JSON.stringify({ status: 'pong', now: Date.now() }));
break;
case 'status':
d.devs.forEach(function(dev) {
var s = JSON.stringify({ status: 'reachable', now: Date.now(), device: exportDev(dev) });
if (ws.readyState === WebSocket.OPEN) {
ws.send(s);
}
});
break;
case 'disconnect':
ws.send(JSON.stringify({ status: 'disconnect', now: Date.now() }));
ws.close();
break;
default:
ws.send(JSON.stringify({ status: 'error', now: Date.now(), message: 'Unknown command' }));
break;
}
});