lokinet/contrib/node-monitor/lokinet.js

1220 lines
34 KiB
JavaScript

// no npm!
const os = require('os')
const fs = require('fs')
const dns = require('dns')
const net = require('net')
const ini = require('./ini')
const path = require('path')
const http = require('http')
const https = require('https')
const {
spawn,
exec
} = require('child_process')
// FIXME: disable rpc if desired
const VERSION = 0.6
console.log('lokinet launcher version', VERSION, 'registered')
function log() {
var args = []
for (var i in arguments) {
var arg = arguments[i]
//console.log('arg type', arg, 'is', typeof(arg))
if (typeof (arg) == 'object') {
arg = JSON.stringify(arg)
}
args.push(arg)
}
console.log('NETWORK:', args.join(' '))
}
function getBoundIPv4s() {
var nics = os.networkInterfaces()
var ipv4s = []
for (var adapter in nics) {
var ips = nics[adapter]
for (var ipIdx in ips) {
var ipMap = ips[ipIdx]
if (ipMap.address.match(/\./)) {
ipv4s.push(ipMap.address)
}
}
}
return ipv4s
}
var auto_config_test_port, auto_config_test_host, auto_config_test_ips
// this doesn't need to connect completely to get our ip
// it won't get our IP if DNS doesn't work
function getNetworkIP(callback) {
// randomly select an ip
//log('getNetworkIP', auto_config_test_ips)
var ip = auto_config_test_ips[Math.floor(Math.random() * auto_config_test_ips.length)]
//log('getNetworkIP from', ip, auto_config_test_port)
var socket = net.createConnection(auto_config_test_port, ip)
socket.setTimeout(5000)
socket.on('connect', function () {
callback(undefined, socket.address().address)
socket.end()
})
var abort = false
socket.on('timeout', function () {
if (socket.address().address) {
abort = true
var resultIp = socket.address().address
log('getNetworkIP timeout but still got outgoing IP:', resultIp)
socket.destroy()
callback(undefined, resultIp)
} else {
// don't have what we need, just wait it out, maybe we'll get lucky
//log('getNetworkIP timeout')
//callback('timeout', 'error')
}
})
socket.on('error', function (e) {
console.error('NETWORK: getNetworkIP error', e)
// FIXME: maybe a retry here
log('getNetworkIP failure test', socket.address().address)
log('getNetworkIP failure, retry?')
if (abort) {
log('getNetworkIP already timed out')
return
}
callback(e, 'error')
})
}
function getIfNameFromIP(ip) {
var nics = os.networkInterfaces()
for (var adapter in nics) {
var ips = nics[adapter]
for (var ipIdx in ips) {
var ipMap = ips[ipIdx]
if (ipMap.address == ip) {
return adapter
}
}
}
return ''
}
const urlparser = require('url')
function httpGet(url, cb) {
const urlDetails = urlparser.parse(url)
//console.log('httpGet url', urlDetails)
//console.log('httpGet', url)
//console.trace('who started dis', url)
var protoClient = http
if (urlDetails.protocol == 'https:') {
protoClient = https
}
// well somehow this can get hung on macos
var abort = false
var watchdog = setInterval(function () {
if (shuttingDown) {
//if (cb) cb()
// [', url, ']
log('hung httpGet but have shutdown request, calling back early and setting abort flag')
clearInterval(watchdog)
abort = true
cb()
return
}
}, 5000)
protoClient.get({
hostname: urlDetails.hostname,
protocol: urlDetails.protocol,
port: urlDetails.port,
path: urlDetails.path,
timeout: 5000,
}, (resp) => {
//log('httpGet setting up handlers')
clearInterval(watchdog)
resp.setEncoding('binary')
let data = ''
// A chunk of data has been recieved.
resp.on('data', (chunk) => {
data += chunk
})
// The whole response has been received. Print out the result.
resp.on('end', () => {
log('result code', resp.statusCode)
if (abort) {
// we already called back
return
}
if (resp.statusCode == 404) {
console.error('NETWORK:', url, 'is not found')
cb()
return
}
cb(data)
})
}).on("error", (err) => {
console.error("NETWORK: httpGet Error: ", err.message, 'port', urlDetails.port)
cb()
})
}
function dynDNSHandler(data, cb) {
}
function getPublicIPv6(cb) {
//v6.ident.me
}
var getPublicIPv4_retries = 0
function getPublicIPv4(cb) {
// trust more than one source
// randomly find 2 matching sources
// dns is faster than http
// dig +short myip.opendns.com @resolver1.opendns.com
// httpGet doesn't support https yet...
var publicIpServices = [{
url: 'https://api.ipify.org'
},
{
url: 'https://ipinfo.io/ip'
},
{
url: 'https://ipecho.net/plain'
},
//{ url: 'http://api.ipify.org' },
//{ url: 'http://ipinfo.io/ip' },
//{ url: 'http://ipecho.net/plain' },
{
url: 'http://ifconfig.me'
},
{
url: 'http://ipv4.icanhazip.com'
},
{
url: 'http://v4.ident.me'
},
{
url: 'http://checkip.amazonaws.com'
},
//{ url: 'https://checkip.dyndns.org', handler: dynDNSHandler },
]
var service = []
service[0] = Math.floor(Math.random() * publicIpServices.length)
service[1] = Math.floor(Math.random() * publicIpServices.length)
var done = [false, false]
function markDone(idx, value) {
if (value === undefined) value = ''
done[idx] = value.trim()
let ready = true
//log('done', done)
for (var i in done) {
if (done[i] === false) {
ready = false
log('getPublicIPv4', i, 'is not ready')
break
}
}
if (!ready) return
log('getPublicIPv4 look ups are done', done)
if (done[0] != done[1]) {
// try 2 random services again
getPublicIPv4_retries++
if (getPublicIPv4_retries > 10) {
console.error('NAT detection: Can\'t determine public IP address')
process.exit()
}
getPublicIPv4(cb)
} else {
// return
//log("found public IP", done[0])
cb(done[0])
}
}
function doCall(number) {
httpGet(publicIpServices[service[number]].url, function (ip) {
if (ip === false) {
service[number] = (Math.random() * publicIpServices.length)
// retry
console.warn(publicIpServices[service[number]].url, 'failed, retrying')
doCall(number)
return
}
console.log(number, publicIpServices[service[number]].url, ip)
markDone(number, ip)
})
}
doCall(0)
doCall(1)
}
// used for generating temp filenames
function randomString(len) {
var text = ""
var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
for (var i = 0; i < len; i++)
text += possible.charAt(Math.floor(Math.random() * possible.length))
return text
}
function isDnsPort(ip, port, cb) {
const resolver = new dns.Resolver()
resolver.setServers([ip + ':' + port])
resolver.resolve(auto_config_test_host, function (err, records) {
if (err) console.error('resolve error:', err)
log(auto_config_test_host, records)
cb(records !== undefined)
})
}
function testDNSForLokinet(server, cb) {
const resolver = new dns.Resolver()
resolver.setServers([server])
// incase server is 127.0.0.1:undefined
try {
resolver.resolve('localhost.loki', function (err, records) {
if (err) console.error('NETWORK: localhost.loki resolve err:', err)
//log(server, 'localhost.loki test results', records)
cb(records)
})
} catch (e) {
console.error('NETWORK: testDNSForLokinet error, incorrect server?', server)
cb()
}
}
function lookup(host, cb) {
var resolver = new dns.Resolver()
//console.log('lokinet lookup servers', runningConfig.dns.bind)
resolver.setServers([runningConfig.dns.bind])
resolver.resolve(host, function (err, records) {
if (err) {
// not as bad... that's at least a properly formatted response
if (err.code == 'ENOTFOUND') {
records = null
} else
// leave bad
if (err.code == 'ETIMEOUT') {
records = undefined
} else {
console.error('lokinet lookup unknown err', err)
}
}
//console.log(host, 'lokinet dns test results', records)
cb(records)
})
}
function findLokiNetDNS(cb) {
const localIPs = getBoundIPv4s()
var checksLeft = 0
var servers = []
function checkDone() {
if (shuttingDown) {
//if (cb) cb()
log('not going to start lokinet, shutting down')
return
}
checksLeft--
if (checksLeft <= 0) {
log('readResolv done')
cb(servers)
}
}
/*
var resolvers = dns.getServers()
console.log('Current resolvers', resolvers)
// check local DNS servers in resolv config
for(var i in resolvers) {
const server = resolvers[i]
var idx = localIPs.indexOf(server)
if (idx != -1) {
// local DNS server
console.log('local DNS server detected', server)
checksLeft++
testDNSForLokinet(server, function(isLokinet) {
if (isLokinet) {
// lokinet
console.log(server, 'is a lokinet DNS server')
servers.push(server)
}
checkDone()
})
}
}
*/
// maybe check all local ips too
for (var i in localIPs) {
const server = localIPs[i]
checksLeft++
testDNSForLokinet(server, function (isLokinet) {
if (isLokinet !== undefined) {
// lokinet
log(server, 'is a lokinet DNS server')
servers.push(server)
}
checkDone()
})
}
}
function readResolv(dns_ip, cb) {
const localIPs = getBoundIPv4s()
var servers = []
var checksLeft = 0
//log('make sure we exclude?', dns_ip)
function checkDone() {
if (shuttingDown) {
//if (cb) cb()
log('not going to start lokinet, shutting down')
return
}
checksLeft--
//log('readResolv reports left', checksLeft)
if (checksLeft <= 0) {
log('readResolv done')
cb(servers)
}
}
var resolvers = dns.getServers()
log('Current resolvers', resolvers)
for (var i in resolvers) {
const server = resolvers[i]
if (server == dns_ip) {
log('preventing DNS loop on', dns_ip)
continue
}
var idx = localIPs.indexOf(server)
if (idx != -1) {
log('local DNS server detected', server)
checksLeft++ // wait for it
testDNSForLokinet(server, function (isLokinet) {
if (isLokinet === undefined) {
// not lokinet
log(server, 'is not a lokinet DNS server')
servers.push(server)
}
checkDone()
})
} else {
// non-local
log('found remote DNS server', server)
servers.push(server)
}
}
checksLeft++
checkDone()
/*
const data = fs.readFileSync('/etc/resolv.conf', 'utf-8')
const lines = data.split(/\n/)
for(var i in lines) {
var line = lines[i].trim()
if (line.match(/#/)) {
var parts = line.split(/#/)
line = parts[0].trim()
}
// done reducing
if (!line) continue
if (line.match(/^nameserver /)) {
const server = line.replace(/^nameserver /, '')
var idx = localIPs.indexOf(server)
if (idx != -1) {
console.log('local DNS server detected', server)
const resolver = new dns.Resolver()
resolver.setServers([server])
checksLeft++
resolver.resolve('localhost.loki', function(err, records) {
//if (err) console.error(err)
//console.log('local dns test results', records)
if (records === undefined) {
// not lokinet
console.log(server, 'is not a lokinet DNS server')
servers.push(server)
}
checkDone()
})
} else {
// non-local
console.log('found remote DNS server', server)
servers.push(server)
}
continue
}
checkDone()
console.error('readResolv unknown', line)
}
return servers
*/
}
// this can really delay the start of lokinet
function findFreePort53(ips, index, cb) {
log('testing', ips[index], 'port 53')
isDnsPort(ips[index], 53, function (res) {
//console.log('isDnsPort res', res)
// false
if (!res) {
log('Found free port 53 on', ips[index], index)
cb(ips[index])
return
}
log('Port 53 is not free on', ips[index], index)
if (index + 1 == ips.length) {
cb()
return
}
findFreePort53(ips, index + 1, cb)
})
}
// https://stackoverflow.com/a/40686853
function mkDirByPathSync(targetDir, {
isRelativeToScript = false
} = {}) {
const sep = path.sep
const initDir = path.isAbsolute(targetDir) ? sep : ''
const baseDir = isRelativeToScript ? __dirname : '.'
return targetDir.split(sep).reduce((parentDir, childDir) => {
const curDir = path.resolve(baseDir, parentDir, childDir)
try {
fs.mkdirSync(curDir)
} catch (err) {
if (err.code === 'EEXIST') { // curDir already exists!
return curDir
}
// To avoid `EISDIR` error on Mac and `EACCES`-->`ENOENT` and `EPERM` on Windows.
if (err.code === 'ENOENT') { // Throw the original parentDir error on curDir `ENOENT` failure.
throw new Error(`EACCES: permission denied, mkdir '${parentDir}'`)
}
const caughtErr = ['EACCES', 'EPERM', 'EISDIR'].indexOf(err.code) > -1
if (!caughtErr || caughtErr && curDir === path.resolve(targetDir)) {
throw err // Throw if it's just the last created dir.
}
}
return curDir
}, initDir)
}
function makeMultiplatformPath(path) {
return path
}
var cleanUpBootstrap = false
var cleanUpIni = false
function generateINI(config, need, markDone, cb) {
const homeDir = os.homedir()
//console.log('homeDir', homeDir)
//const data = fs.readFileSync(homeDir + '/.lokinet/lokinet.ini', 'utf-8')
//const jConfig = iniToJSON(data)
//console.dir(jConfig)
//const iConfig = jsonToINI(jConfig)
//console.log(iConfig)
var upstreams, lokinet_free53Ip, lokinet_nic
var use_lokinet_rpc_port = config.rpc_port
var lokinet_bootstrap_path = homeDir + '/.lokinet/bootstrap.signed'
var lokinet_nodedb = homeDir + '/.lokinet/netdb'
if (config.netid) {
lokinet_nodedb += '-' + config.netid
}
if (!fs.existsSync(lokinet_nodedb)) {
log('making', lokinet_nodedb)
mkDirByPathSync(lokinet_nodedb)
}
var upstreamDNS_servers = []
var params = {
upstreamDNS_servers: upstreamDNS_servers,
lokinet_free53Ip: lokinet_free53Ip,
lokinet_nodedb: lokinet_nodedb,
lokinet_bootstrap_path: lokinet_bootstrap_path,
lokinet_nic: lokinet_nic,
use_lokinet_rpc_port: use_lokinet_rpc_port,
}
if (config.bootstrap_url) {
httpGet(config.bootstrap_url, function (bootstrapData) {
if (bootstrapData) {
cleanUpBootstrap = true
const tmpRcPath = os.tmpdir() + '/' + randomString(8) + '.lokinet_signed'
fs.writeFileSync(tmpRcPath, bootstrapData, 'binary')
log('boostrap wrote', bootstrapData.length, 'bytes to', tmpRcPath)
//lokinet_bootstrap_path = tmpRcPath
params.lokinet_bootstrap_path = tmpRcPath
config.bootstrap_path = tmpRcPath
}
markDone('bootstrap', params)
})
} else {
// seed version
//params.lokinet_bootstrap_path = ''
markDone('bootstrap', params)
}
readResolv(config.dns_ip, function (servers) {
upstreamDNS_servers = servers
params.upstreamDNS_servers = servers
upstreams = 'upstream=' + servers.join('\nupstream=')
markDone('upstream', params)
})
log('trying', 'http://' + config.rpc_ip + ':' + config.rpc_port)
httpGet('http://' + config.rpc_ip + ':' + config.rpc_port, function (testData) {
//log('rpc has', testData)
if (testData !== undefined) {
log('Bumping RPC port', testData)
// FIXME: retest new port
use_lokinet_rpc_port = use_lokinet_rpc_port + 1
params.use_lokinet_rpc_port = use_lokinet_rpc_port
}
markDone('rpcCheck', params)
})
var skipDNS = false
if (config.dns_ip || config.dns_port) {
skipDNS = true
markDone('dnsBind', params)
}
getNetworkIP(function (e, ip) {
if (ip == 'error' || !ip) {
console.error('NETWORK: can\'t detect default adapter IP address')
// can't handle the exits here because we don't know if it's an actual requirements
// if we need netIf or dnsBind
if (done.netIf !== undefined || done.dnsBind !== undefined) {
process.exit()
}
}
log('detected outgoing interface ip', ip)
lokinet_nic = getIfNameFromIP(ip)
params.lokinet_nic = lokinet_nic
params.interfaceIP = ip
log('detected outgoing interface', lokinet_nic)
markDone('netIf', params)
if (skipDNS) return
var tryIps = ['127.0.0.1']
if (os.platform() == 'linux') {
tryIps.push('127.3.2.1')
}
tryIps.push(ip)
findFreePort53(tryIps, 0, function (free53Ip) {
if (free53Ip === undefined) {
console.error('NETWORK: Cant automatically find an IP to put a lokinet DNS server on')
// can't handle the exits here because we don't know if it's an actual requirements
if (done.dnsBind !== undefined) {
process.exit()
}
}
lokinet_free53Ip = free53Ip
params.lokinet_free53Ip = free53Ip
log('binding DNS port 53 to', free53Ip)
markDone('dnsBind', params)
})
})
getPublicIPv4(function (ip) {
//log('generateINI - ip', ip)
params.publicIP = ip
markDone('publicIP', params)
})
}
// unified post auto-config adjustments
// disk to running
function applyConfig(file_config, config_obj) {
// bootstrap section
// router mode: bootstrap is optional (might be a seed if not)
// client mode: bootstrap is required, can't have a seed client
if (file_config.bootstrap_path) {
config_obj.bootstrap = {
'add-node': file_config.bootstrap_path
}
}
// router section
if (file_config.nickname) {
config_obj.router.nickname = file_config.nickname
}
// set default netid based on testnet
if (file_config.lokid && file_config.lokid.network == "test") {
config_obj.router.netid = 'service'
//runningConfig.network['ifaddr'] = '10.254.0.1/24' // hack for Ryan's box
}
if (file_config.netid) {
config_obj.router.netid = file_config.netid
}
// network section
if (file_config.ifname) {
config_obj.network.ifname = file_config.ifname
}
if (file_config.ifaddr) {
config_obj.network.ifaddr = file_config.ifaddr
}
// dns section
if (file_config.dns_ip || file_config.dns_port) {
// FIXME: dynamic dns ip
// we'd have to move the DNS autodetection here
// detect free port 53 on ip
// for now just make sure we have sane defaults
var ip = file_config.dns_ip
if (!ip) ip = '127.0.0.1'
var dnsPort = file_config.dns_port
if (dnsPort === undefined) dnsPort = 53
config_obj.dns.bind = ip + ':' + dnsPort
}
}
var runningConfig = {}
var genSnCallbackFired
function generateSerivceNodeINI(config, cb) {
const homeDir = os.homedir()
var done = {
bootstrap: false,
upstream: false,
rpcCheck: false,
dnsBind: false,
netIf: false,
publicIP: false,
}
if (config.publicIP) {
done.publicIP = undefined
}
genSnCallbackFired = false
function markDone(completeProcess, params) {
done[completeProcess] = true
let ready = true
for (var i in done) {
if (!done[i]) {
ready = false
log(i, 'is not ready')
break
}
}
if (shuttingDown) {
//if (cb) cb()
log('not going to start lokinet, shutting down')
return
}
if (!ready) return
// we may have un-required proceses call markDone after we started
if (genSnCallbackFired) return
genSnCallbackFired = true
var keyPath = homeDir + '/.loki/'
//
if (config.lokid.data_dir) {
keyPath = config.lokid.data_dir
// make sure it has a trailing slash
if (keyPath[keyPath.length - 1] != '/') {
keyPath += '/'
}
}
if (config.lokid.network == "test" || config.lokid.network == "demo") {
keyPath += 'testnet/'
}
keyPath += 'key'
log('markDone params', JSON.stringify(params))
log('PUBLIC', params.publicIP, 'IFACE', params.interfaceIP)
var useNAT = false
if (params.publicIP != params.interfaceIP) {
log('NAT DETECTED MAKE SURE YOU FORWARD UDP PORT', config.public_port, 'on', params.publicIP, 'to', params.interfaceIP)
useNAT = true
}
log('Drafting lokinet service node config')
// FIXME: lock down identity.private for storage server
runningConfig = {
router: {
nickname: 'ldl',
},
dns: {
upstream: params.upstreamDNS_servers,
bind: params.lokinet_free53Ip + ':53',
},
netdb: {
dir: params.lokinet_nodedb,
},
bind: {
// will be set after
},
network: {},
api: {
enabled: true,
bind: config.rpc_ip + ':' + params.use_lokinet_rpc_port
},
lokid: {
enabled: true,
jsonrpc: config.lokid.rpc_ip + ':' + config.lokid.rpc_port,
username: config.lokid.rpc_user,
password: config.lokid.rpc_pass,
'service-node-seed': keyPath
}
}
if (useNAT) {
runningConfig.router['public-ip'] = params.publicIP
runningConfig.router['public-port'] = config.public_port
}
// inject manual NAT config?
if (config.public_ip) {
runningConfig.router['public-ip'] = config.public_ip
runningConfig.router['public-port'] = config.public_port
}
runningConfig.bind[params.lokinet_nic] = config.public_port
if (config.internal_port) {
runningConfig.bind[params.lokinet_nic] = config.internal_port
}
applyConfig(config, runningConfig)
// optional bootstrap (might be a seed if not)
// doesn't work
//runningConfig.network['type'] = 'null' // disable exit
//runningConfig.network['enabled'] = true;
cb(ini.jsonToINI(runningConfig))
}
generateINI(config, done, markDone, cb)
}
var genClientCallbackFired
function generateClientINI(config, cb) {
var done = {
bootstrap: false,
upstream: false,
rpcCheck: false,
dnsBind: false,
}
genClientCallbackFired = false
function markDone(completeProcess, params) {
done[completeProcess] = true
let ready = true
for (var i in done) {
if (!done[i]) {
ready = false
log(i, 'is not ready')
break
}
}
if (!ready) return
// make sure we didn't already start
if (genClientCallbackFired) return
genClientCallbackFired = true
if (!params.use_lokinet_rpc_port) {
// use default because we enable it
params.use_lokinet_rpc_port = 1190
}
log('Drafting lokinet client config')
runningConfig = {
router: {
nickname: 'ldl',
},
dns: {
upstream: params.upstreamDNS_servers,
bind: params.lokinet_free53Ip + ':53',
},
netdb: {
dir: params.lokinet_nodedb,
},
network: {},
api: {
enabled: true,
bind: config.rpc_ip + ':' + params.use_lokinet_rpc_port
},
}
applyConfig(config, runningConfig)
// a bootstrap is required, can't have a seed client
if (!runningConfig.bootstrap) {
console.error('no bootstrap for client')
process.exit()
}
cb(ini.jsonToINI(runningConfig))
}
generateINI(config, done, markDone, cb)
}
var shuttingDown
var lokinet
var lokinetLogging = true
function preLaunchLokinet(config, cb) {
//console.log('userInfo', os.userInfo('utf8'))
//console.log('started as', process.getuid(), process.geteuid())
// check user permissions
if (os.platform() == 'darwin') {
if (process.getuid() != 0) {
console.error('MacOS requires you start this with sudo')
process.exit()
}
// leave the linux commentary for later
/*
} else {
if (process.getuid() == 0) {
console.error('Its not recommended you run this as root')
} */
}
if (os.platform() == 'linux') {
// not root-like
exec('getcap ' + config.binary_path, function (error, stdout, stderr) {
//console.log('stdout', stdout)
// src/loki-network/lokinet = cap_net_bind_service,cap_net_admin+eip
if (!(stdout.match(/cap_net_bind_service/) && stdout.match(/cap_net_admin/))) {
if (process.getgid() != 0) {
conole.log(config.binary_path, 'does not have setcap. Please setcap the binary (make install usually does this) or run launcher root one time, so we can')
process.exit()
} else {
// are root
log('going to try to setcap your binary, so you dont need root')
exec('setcap cap_net_admin,cap_net_bind_service=+eip ' + config.binary_path, function (error, stdout, stderr) {
log('binary permissions upgraded')
})
}
}
})
}
// lokinet will crash if this file is zero bytes
if (fs.existsSync('profiles.dat')) {
var stats = fs.statSync('profiles.dat')
if (!stats.size) {
log('cleaning router profiles')
fs.unlinkSync('profiles.dat')
}
}
const tmpDir = os.tmpdir()
const tmpPath = tmpDir + '/' + randomString(8) + '.lokinet_ini'
cleanUpIni = true
config.ini_writer(config, function (iniData) {
if (shuttingDown) {
//if (cb) cb()
log('not going to write lokinet config, shutting down')
return
}
log(iniData, 'as', tmpPath)
fs.writeFileSync(tmpPath, iniData)
config.ini_file = tmpPath
cb()
})
}
function launchLokinet(config, cb) {
if (shuttingDown) {
//if (cb) cb()
log('not going to start lokinet, shutting down')
return
}
if (!fs.existsSync(config.ini_file)) {
log('lokinet config file', config.ini_file, 'does not exist')
process.exit()
}
// command line options
var cli_options = [config.ini_file]
if (config.verbose) {
cli_options.push('-v')
}
console.log('network: launching', config.binary_path, cli_options.join(' '))
lokinet = spawn(config.binary_path, cli_options)
if (!lokinet) {
console.error('failed to start lokinet, exiting...')
// proper shutdown?
process.exit()
}
lokinet.killed = false
lokinet.stdout.on('data', (data) => {
var parts = data.toString().split(/\n/)
parts.pop()
data = parts.join('\n')
if (module.exports.onMessage) {
module.exports.onMessage(data)
}
})
lokinet.stderr.on('data', (data) => {
if (module.exports.onError) {
module.exports.onError(data)
}
})
lokinet.on('close', (code) => {
log(`lokinet process exited with code ${code}`)
// code 0 means clean shutdown
lokinet.killed = true
// clean up
// if we have a temp bootstrap, clean it
if (cleanUpBootstrap && runningConfig.bootstrap['add-node'] && fs.existsSync(runningConfig.bootstrap['add-node'])) {
fs.unlinkSync(runningConfig.bootstrap['add-node'])
}
if (cleanUpIni && fs.existsSync(config.ini_file)) {
fs.unlinkSync(config.ini_file)
}
if (!shuttingDown) {
if (config.restart) {
// restart it in 30 seconds to avoid pegging the cpu
setTimeout(function () {
log('loki_daemon is still running, restarting lokinet')
launchLokinet(config)
}, 30 * 1000)
} else {
// don't restart...
}
}
// else we're shutting down
})
if (cb) cb()
}
function checkConfig(config) {
if (config === undefined) config = {}
if (config.auto_config_test_ips === undefined) config.auto_config_test_ips = ['1.1.1.1', '8.8.8.8']
if (config.auto_config_test_host === undefined) config.auto_config_test_host = 'www.imdb.com'
if (config.auto_config_test_port === undefined) config.auto_config_test_port = 80
auto_config_test_port = config.auto_config_test_port
auto_config_test_host = config.auto_config_test_host
auto_config_test_ips = config.auto_config_test_ips
if (config.binary_path === undefined) config.binary_path = '/usr/local/bin/lokinet'
// we don't always want a bootstrap (seed mode)
// maybe if no port we shouldn't configure it
if (config.rpc_ip === undefined) config.rpc_ip = '127.0.0.1'
if (config.rpc_port === undefined) config.rpc_port = 0
// set public_port ?
}
function waitForUrl(url, cb) {
httpGet(url, function (data) {
//console.log('rpc data', data)
// will be undefined if down (ECONNREFUSED)
// if success
// <html><head><title>Unauthorized Access</title></head><body><h1>401 Unauthorized</h1></body></html>
if (data) {
cb()
} else {
// no data could me 404
if (shuttingDown) {
//if (cb) cb()
log('not going to start lokinet, shutting down')
return
}
setTimeout(function () {
waitForUrl(url, cb)
}, 1000)
}
})
}
function startServiceNode(config, cb) {
// FIXME: if no bootstrap stomp it
// but allow for seed nodes (no bootstrap)?
checkConfig(config)
config.ini_writer = generateSerivceNodeINI
config.restart = true
// FIXME: check for bootstrap stomp and strip it
// only us lokinet devs will need to make our own seed node
preLaunchLokinet(config, function () {
// test lokid rpc port first
// also this makes sure the service key file exists
var url = 'http://' + config.lokid.rpc_user + ':' + config.lokid.rpc_pass + '@' + config.lokid.rpc_ip + ':' + config.lokid.rpc_port
log('lokinet waiting for lokid RPC server')
waitForUrl(url, function () {
launchLokinet(config, cb)
})
})
}
function startClient(config, cb) {
checkConfig(config)
if (config.bootstrap_path === undefined && config.bootstrap_url === undefined) config.bootstrap_url = 'https://i2p.rocks/bootstrap.signed'
config.ini_writer = generateClientINI
preLaunchLokinet(config, function () {
launchLokinet(config, cb)
})
}
// return a truish value if so
function isRunning() {
// should we block until port is responding?
return lokinet
}
// copied from lib
function isPidRunning(pid) {
if (pid === undefined) {
console.trace('isPidRunning was passed undefined, reporting not running')
return false
}
try {
process.kill(pid, 0)
//console.log('able to kill', pid)
return true
} catch (e) {
if (e.code == 'ERR_INVALID_ARG_TYPE') {
// means pid was undefined
return true
}
if (e.code == 'ESRCH') {
// not running
return false
}
if (e.code == 'EPERM') {
// we're don't have enough permissions to signal this process
return true
}
console.log(pid, 'isRunning', e.code)
return false
}
}
// intent to stop lokinet and don't restart it
var retries = 0
function stop() {
shuttingDown = true
if (lokinet && lokinet.killed) {
console.warn('lokinet already stopped')
retries++
if (retries > 3) {
// 3 exits in a row, something isn't dying
// just quit out
process.exit()
}
return
}
log('requesting lokinet be shutdown')
if (lokinet && !lokinet.killed) {
log('sending SIGINT to lokinet', lokinet.pid)
process.kill(lokinet.pid, 'SIGINT')
lokinet.killed = true
// HACK: lokinet on macos can not be killed if rpc port is in use
var monitorTimerStart = Date.now()
var monitorTimer = setInterval(function () {
if (!isPidRunning(lokinet.pid)) {
// launcher can't exit until this interval is cleared
clearInterval(monitorTimer)
} else {
var diff = Date.now() - monitorTimerStart
if (diff > 15 * 1000) {
// reach 15 secs and lokinet is still running
// escalate it
console.error('Lokinet is still running 15s after we intentionally stopped lokinet?')
process.kill(lokinet.pid, 'SIGKILL')
} else
if (diff > 30 * 1000) {
// reach 30 secs and lokinet is still running
// escalate it
console.error('Lokinet is still running 30s after we intentionally killed lokinet?')
var handles = process._getActiveHandles()
console.log('handles', handles.length)
for (var i in handles) {
var handle = handles[i]
console.log(i, 'type', handle._type, handle)
}
console.log('requests', process._getActiveRequests().length)
console.log('forcing exit')
process.exit()
}
}
}, 1000)
// this timer will stop the system from shutting down
/*
setTimeout(function() {
try {
// check to see if still running
process.kill(lokinet.pid, 0)
log('sending SIGKILL to lokinet')
process.kill(lokinet.pid, 'SIGKILL')
} catch(e) {
console.error('Launcher is still running 15s after we intentionally stopped lokinet?')
var handles = process._getActiveHandles()
console.log('handles', handles.length)
for(var i in handles) {
var handle = handles[i]
console.log(i, 'type', handle._type, handle)
}
console.log('requests', process._getActiveRequests().length)
process.exit()
}
}, 15 * 1000)
*/
}
}
// isRunning covers this too well
function getPID() {
return (lokinet && !lokinet.killed && lokinet.pid) ? lokinet.pid : 0
}
function enableLogging() {
lokinetLogging = true
}
function disableLogging() {
console.log('Disabling lokinet logging')
lokinetLogging = false
}
function getLokiNetIP(cb) {
function checkDNS() {
log('lokinet seems to be running, querying', runningConfig.dns.bind)
// where's our DNS server?
//log('RunningConfig says our lokinet\'s DNS is on', runningConfig.dns.bind)
testDNSForLokinet(runningConfig.dns.bind, function (ips) {
//log('lokinet test', ips)
if (ips && ips.length) {
cb(ips[0])
} else {
// , retrying
console.error('cant communicate with lokinet DNS')
/*
//process.exit()
setTimeout(function() {
getLokiNetIP(cb)
}, 1000)
*/
cb()
}
})
}
if (runningConfig.api.enabled) {
log('wait for lokinet startup', runningConfig.api)
var url = 'http://' + runningConfig.api.bind + '/'
waitForUrl(url, function () {
checkDNS()
})
} else {
checkDNS()
}
}
module.exports = {
startServiceNode: startServiceNode,
startClient: startClient,
checkConfig: checkConfig,
findLokiNetDNS: findLokiNetDNS,
lookup: lookup,
isRunning: isRunning,
stop: stop,
getLokiNetIP: getLokiNetIP,
enableLogging: enableLogging,
disableLogging: disableLogging,
getPID: getPID,
// FIXME: should we allow hooking of log() too?
onMessage: function (data) {
if (lokinetLogging) {
console.log(`lokinet: ${data}`)
}
},
onError: function (data) {
console.log(`lokineterr: ${data}`)
},
}