This commit is contained in:
progr76@gmail.com
2019-02-10 22:53:54 +03:00
parent 5b2c8d4ca1
commit 3029d69c0e
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# Auto detect text files and perform LF normalization
* text=auto
# Custom for Visual Studio
*.cs diff=csharp
*.sln merge=union
*.csproj merge=union
*.vbproj merge=union
*.fsproj merge=union
*.dbproj merge=union
# Standard to msysgit
*.doc diff=astextplain
*.DOC diff=astextplain
*.docx diff=astextplain
*.DOCX diff=astextplain
*.dot diff=astextplain
*.DOT diff=astextplain
*.pdf diff=astextplain
*.PDF diff=astextplain
*.rtf diff=astextplain
*.RTF diff=astextplain

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{
"node": true,
"strict": true
}

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*.sublime-workspace
.idea
node_modules/

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language: node_js
node_js:
- "0.10"
before_script:
- npm install -g grunt-cli
notifications:
on_success: never
on_failure: always

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'use strict';
module.exports = function (grunt) {
// Project configuration.
grunt.initConfig({
nodeunit: {
files: ['test/**/*_test.js']
},
jshint: {
options: {
jshintrc: '.jshintrc'
},
gruntfile: {
src: 'Gruntfile.js'
},
lib: {
src: ['lib/**/*.js']
},
test: {
src: ['test/**/*.js']
}
},
watch: {
gruntfile: {
files: '<%= jshint.gruntfile.src %>',
tasks: ['jshint:gruntfile']
},
lib: {
files: '<%= jshint.lib.src %>',
tasks: ['jshint:lib', 'nodeunit']
},
test: {
files: '<%= jshint.test.src %>',
tasks: ['jshint:test', 'nodeunit']
}
}
});
// These plugins provide necessary tasks.
grunt.loadNpmTasks('grunt-contrib-nodeunit');
grunt.loadNpmTasks('grunt-contrib-jshint');
grunt.loadNpmTasks('grunt-contrib-watch');
// Default task.
grunt.registerTask('default', ['jshint', 'nodeunit']);
};

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Copyright (c) 2013 Clément Bourgeois
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

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# ntp-client [![Build Status](https://secure.travis-ci.org/moonpyk/node-ntp-client.png?branch=master)](http://travis-ci.org/moonpyk/node-ntp-client)
Pure Javascript implementation of the NTP Client Protocol
## Getting Started
Install the module with: `npm install ntp-client`
```javascript
var ntpClient = require('ntp-client');
ntpClient.getNetworkTime("pool.ntp.org", 123, function(err, date) {
if(err) {
console.error(err);
return;
}
console.log("Current time : ");
console.log(date); // Mon Jul 08 2013 21:31:31 GMT+0200 (Paris, Madrid (heure dété))
});
```
## Contributors
* Clément Bourgeois (https://github.com/moonpyk)
* Callan Bryant (https://github.com/naggie)
## License
Copyright (c) 2014 Clément Bourgeois
Licensed under the MIT license.

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#!/usr/bin/env node
require('../lib/ntp-client.js').demo(process.argv);

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/*
* ntp-client
* https://github.com/moonpyk/node-ntp-client
*
* Copyright (c) 2013 Clément Bourgeois
* Licensed under the MIT license.
*/
(function (exports) {
"use strict";
var dgram = require('dgram');
exports.defaultNtpPort = 123;
exports.defaultNtpServer = "pool.ntp.org";
/**
* Amount of acceptable time to await for a response from the remote server.
* Configured default to 10 seconds.
*/
exports.ntpReplyTimeout = 10000;
/**
* Fetches the current NTP Time from the given server and port.
* @param {string} server IP/Hostname of the remote NTP Server
* @param {number} port Remote NTP Server port number
* @param {function(Object, Date)} callback(err, date) Async callback for
* the result date or eventually error.
*/
exports.getNetworkTime = function (server, port, callback) {
if (callback === null || typeof callback !== "function") {
return;
}
server = server || exports.defaultNtpServer;
port = port || exports.defaultNtpPort;
var client = dgram.createSocket("udp4"),
ntpData = new Buffer(48);
// RFC 2030 -> LI = 0 (no warning, 2 bits), VN = 3 (IPv4 only, 3 bits), Mode = 3 (Client Mode, 3 bits) -> 1 byte
// -> rtol(LI, 6) ^ rotl(VN, 3) ^ rotl(Mode, 0)
// -> = 0x00 ^ 0x18 ^ 0x03
ntpData[0] = 0x1B;
for (var i = 1; i < 48; i++) {
ntpData[i] = 0;
}
var timeout = setTimeout(function () {
client.close();
callback("Timeout waiting for NTP response.", null);
}, exports.ntpReplyTimeout);
// Some errors can happen before/after send() or cause send() to was impossible.
// Some errors will also be given to the send() callback.
// We keep a flag, therefore, to prevent multiple callbacks.
// NOTE : the error callback is not generalised, as the client has to lose the connection also, apparently.
var errorFired = false;
client.on('error', function (err) {
if (errorFired) {
return;
}
callback(err, null);
errorFired = true;
clearTimeout(timeout);
});
client.send(ntpData, 0, ntpData.length, port, server, function (err) {
if (err) {
if (errorFired) {
return;
}
clearTimeout(timeout);
callback(err, null);
errorFired = true;
client.close();
return;
}
client.once('message', function (msg) {
clearTimeout(timeout);
client.close();
// Offset to get to the "Transmit Timestamp" field (time at which the reply
// departed the server for the client, in 64-bit timestamp format."
var offsetTransmitTime = 40,
intpart = 0,
fractpart = 0;
// Get the seconds part
for (var i = 0; i <= 3; i++) {
intpart = 256 * intpart + msg[offsetTransmitTime + i];
}
// Get the seconds fraction
for (i = 4; i <= 7; i++) {
fractpart = 256 * fractpart + msg[offsetTransmitTime + i];
}
var milliseconds = (intpart * 1000 + (fractpart * 1000) / 0x100000000);
// **UTC** time
var date = new Date("Jan 01 1900 GMT");
date.setUTCMilliseconds(date.getUTCMilliseconds() + milliseconds);
callback(null, date);
});
});
};
exports.demo = function (argv) {
exports.getNetworkTime(
exports.defaultNtpServer,
exports.defaultNtpPort,
function (err, date) {
if (err) {
console.error(err);
return;
}
console.log(date);
});
};
}(exports));

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{
"folders": [
{
"path": ".",
"file_exclude_patterns": ["*.sublime-workspace", "*.project"],
"folder_exclude_patterns": ["*.*"]
}
],
"ternjs": {
"exclude": ["node_modules/**"]
}
}

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{
"_from": "ntp-client",
"_id": "ntp-client@0.5.3",
"_inBundle": false,
"_integrity": "sha1-A8DI2mfj9Jl9oIPUaC3M4NkgijU=",
"_location": "/ntp-client",
"_phantomChildren": {},
"_requested": {
"type": "tag",
"registry": true,
"raw": "ntp-client",
"name": "ntp-client",
"escapedName": "ntp-client",
"rawSpec": "",
"saveSpec": null,
"fetchSpec": "latest"
},
"_requiredBy": [
"#USER",
"/"
],
"_resolved": "https://registry.npmjs.org/ntp-client/-/ntp-client-0.5.3.tgz",
"_shasum": "03c0c8da67e3f4997da083d4682dcce0d9208a35",
"_spec": "ntp-client",
"_where": "C:\\VC++\\NodeJS\\MyMoney\\NW-Build",
"author": {
"name": "Clément Bourgeois",
"email": "moonpyk@gmail.com",
"url": "http://www.moonpyk.net"
},
"bin": {
"node-ntp-client": "bin/node-ntp-client"
},
"bugs": {
"url": "https://github.com/moonpyk/node-ntp-client/issues"
},
"bundleDependencies": false,
"deprecated": false,
"description": "Pure Javascript implementation of the NTP Client Protocol",
"devDependencies": {
"grunt": ">= 0.4.1",
"grunt-contrib-jshint": ">= 0.6.0",
"grunt-contrib-nodeunit": ">= 0.2.0",
"grunt-contrib-watch": ">= 0.4.0",
"nodeunit": ">= 0.8.1"
},
"engines": {
"node": ">= 0.10.0"
},
"homepage": "https://github.com/moonpyk/node-ntp-client",
"keywords": [
"date",
"ntp"
],
"licenses": [
{
"type": "MIT",
"url": "https://github.com/moonpyk/node-ntp-client/blob/master/LICENSE-MIT"
}
],
"main": "lib/ntp-client",
"name": "ntp-client",
"repository": {
"type": "git",
"url": "git://github.com/moonpyk/node-ntp-client.git"
},
"scripts": {
"test": "grunt jshint nodeunit"
},
"version": "0.5.3"
}