self-hosted/joplin
1
0
Fork 0
mirror of https://github.com/laurent22/joplin.git synced 2025-06-27 23:28:38 +02:00
Code Issues Releases Activity

Get NTP time working on Android

Browse Source
This commit is contained in:
Laurent Cozic
2020-09-09 10:56:17 +01:00
parent f41ba67e15
commit c9adccad4a
4 changed files with 52 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files

69
ReactNativeClient/lib/vendor/ntp-client.js vendored
View File

@ -11,6 +11,8 @@
// it has several bugs and is currently unmaintained
// ----------------------------------------------------------------------------------------
const Buffer = require('buffer').Buffer;
(function (exports) {
"use strict";
@ -89,47 +91,52 @@
errorFired = true;
});
client.send(ntpData, 0, ntpData.length, port, server, function (err) {
if (err) {
clearTimeout(timeout);
if (errorFired) {
// NOTE: To make it work in React Native (Android), a port need to be bound
// before calling client.send()
// client.bind(5555, '0.0.0.0', function() {
client.send(ntpData, 0, ntpData.length, port, server, function (err) {
if (err) {
clearTimeout(timeout);
if (errorFired) {
return;
}
callback(err, null);
errorFired = true;
closeClient(client);
return;
}
callback(err, null);
errorFired = true;
closeClient(client);
return;
}
client.once('message', function (msg) {
clearTimeout(timeout);
closeClient(client);
client.once('message', function (msg) {
clearTimeout(timeout);
closeClient(client);
// 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;
// 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 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];
}
// Get the seconds fraction
for (i = 4; i <= 7; i++) {
fractpart = 256 * fractpart + msg[offsetTransmitTime + i];
}
var milliseconds = (intpart * 1000 + (fractpart * 1000) / 0x100000000);
var milliseconds = (intpart * 1000 + (fractpart * 1000) / 0x100000000);
// **UTC** time
var date = new Date("Jan 01 1900 GMT");
date.setUTCMilliseconds(date.getUTCMilliseconds() + milliseconds);
// **UTC** time
var date = new Date("Jan 01 1900 GMT");
date.setUTCMilliseconds(date.getUTCMilliseconds() + milliseconds);
callback(null, date);
callback(null, date);
});
});
});
// });
};
exports.demo = function (argv) {