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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| 'use strict'; | ||
| var EventEmitter, NTP, Packet, createSocket, | ||
| extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; }, | ||
| hasProp = {}.hasOwnProperty; | ||
|
|
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| Packet = require('./packet'); | ||
|
|
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| createSocket = require('dgram').createSocket; | ||
|
|
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| EventEmitter = require('events').EventEmitter; | ||
|
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| NTP = (function(superClass) { | ||
| extend(NTP, superClass); | ||
|
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| function NTP(options, callback) { | ||
| if (typeof options === 'function') { | ||
| callback = options; | ||
| options = {}; | ||
| } | ||
| Object.assign(this, { | ||
| server: '127.0.0.1', | ||
| port: 123 | ||
| }, options); | ||
| this.socket = new createSocket('udp4'); | ||
| if (typeof callback === 'function') { | ||
| this.time(callback); | ||
| } | ||
| } | ||
|
|
||
| NTP.prototype.time = function(callback) { | ||
| var packet, port, ref, server, timeout; | ||
| ref = this, server = ref.server, port = ref.port, timeout = ref.timeout; | ||
| packet = NTP.createPacket(); | ||
| this.socket.send(packet, 0, packet.length, port, server, (function(_this) { | ||
| return function(err) { | ||
| if (err) { | ||
| return callback(err); | ||
| } | ||
| return _this.socket.once('message', function(data) { | ||
| var message; | ||
| message = NTP.parse(data); | ||
| return callback(err, message); | ||
| }); | ||
| }; | ||
| })(this)); | ||
| return this; | ||
| }; | ||
|
|
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| NTP.time = function(options, callback) { | ||
| return new NTP(options, callback); | ||
| }; | ||
|
|
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| NTP.createPacket = function() { | ||
| var packet; | ||
| packet = new Packet; | ||
| packet.mode = Packet.MODES.CLIENT; | ||
| return packet.toBuffer(); | ||
| }; | ||
|
|
||
| NTP.parse = function(buffer) { | ||
| var T1, T2, T3, T4, message; | ||
| message = Packet.parse(buffer); | ||
| T1 = message.originateTimestamp; | ||
| T2 = message.receiveTimestamp; | ||
| T3 = message.transmitTimestamp; | ||
| T4 = message.destinationTimestamp; | ||
| message.d = T4 - T1 - (T3 - T2); | ||
| message.t = (T2 - T1 + T3 - T4) / 2; | ||
| return message; | ||
| }; | ||
|
|
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| return NTP; | ||
|
|
||
| })(EventEmitter); | ||
|
|
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| module.exports = NTP; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,88 +1,15 @@ | ||
| 'use strict'; | ||
| var EventEmitter, NTP, Packet, createSocket, | ||
| extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; }, | ||
| hasProp = {}.hasOwnProperty; | ||
| var createServer, ntp; | ||
|
|
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| Packet = require('./packet'); | ||
| createServer = require('./server').createServer; | ||
|
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| createSocket = require('dgram').createSocket; | ||
| ntp = createServer(function(message, response) { | ||
| console.log('server message:', message); | ||
| return response(message); | ||
| }); | ||
|
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| EventEmitter = require('events').EventEmitter; | ||
| ntp.listen(123, function(err) { | ||
| return console.log('ntp server is running at %s', ntp.address().port); | ||
| }); | ||
|
|
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| NTP = (function(superClass) { | ||
| extend(NTP, superClass); | ||
|
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||
| function NTP(options, callback) { | ||
| if (typeof options === 'function') { | ||
| callback = options; | ||
| options = {}; | ||
| } | ||
| Object.assign(this, { | ||
| server: 'pool.ntp.org', | ||
| port: 123 | ||
| }, options); | ||
| this.socket = new createSocket('udp4'); | ||
| if (typeof callback === 'function') { | ||
| this.time(callback); | ||
| } | ||
| } | ||
|
|
||
| NTP.prototype.time = function(callback) { | ||
| var packet, port, ref, server, timeout; | ||
| ref = this, server = ref.server, port = ref.port, timeout = ref.timeout; | ||
| packet = NTP.createPacket(); | ||
| this.socket.send(packet, 0, packet.length, port, server, (function(_this) { | ||
| return function(err) { | ||
| if (err) { | ||
| return callback(err); | ||
| } | ||
| return _this.socket.once('message', function(data) { | ||
| var message; | ||
| this.socket.close(); | ||
| message = NTP.parse(data); | ||
| return callback(err, message); | ||
| }); | ||
| }; | ||
| })(this)); | ||
| return this; | ||
| }; | ||
|
|
||
| NTP.time = function(options, callback) { | ||
| return new NTP(options, callback); | ||
| }; | ||
|
|
||
| NTP.createPacket = function() { | ||
| var packet; | ||
| packet = new Packet; | ||
| packet.mode = Packet.MODES.CLIENT; | ||
| packet.originateTimestamp = Date.now(); | ||
| return packet.toBuffer(); | ||
| }; | ||
|
|
||
| NTP.parse = function(buffer) { | ||
| var T1, T2, T3, T4, message; | ||
| message = Packet.parse(buffer); | ||
| message.destinationTimestamp = Date.now(); | ||
| message.time = new Date(message.transmitTimestamp); | ||
| T1 = message.originateTimestamp; | ||
| T2 = message.receiveTimestamp; | ||
| T3 = message.transmitTimestamp; | ||
| T4 = message.destinationTimestamp; | ||
| message.d = T4 - T1 - (T3 - T2); | ||
| message.t = (T2 - T1 + T3 - T4) / 2; | ||
| return message; | ||
| }; | ||
|
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| return NTP; | ||
|
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| })(EventEmitter); | ||
|
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| exports.Client = NTP; | ||
|
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| exports.Server = require('./server'); | ||
|
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| exports.createServer = function(options) { | ||
| return new exports.Server(options); | ||
| }; | ||
|
|
||
| module.exports = NTP; | ||
| module.exports = ntp; |
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