trilium/services/utils.js

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1.9 KiB
JavaScript
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"use strict";
const crypto = require('crypto');
const randtoken = require('rand-token').generator({source: 'crypto'});
function newNoteId() {
return randomString(12);
}
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function newNoteTreeId() {
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return randomString(12);
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}
function newNoteHistoryId() {
return randomString(12);
}
function randomString(length) {
return randtoken.generate(length);
}
function randomSecureToken(bytes = 32) {
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return crypto.randomBytes(bytes).toString('base64');
}
function nowDate() {
return dateStr(new Date());
}
function dateStr(date) {
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return date.toISOString();
}
/**
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* @param str - needs to be in the ISO 8601 format "YYYY-MM-DDTHH:MM:SS.sssZ" format as outputted by dateStr().
* also is assumed to be GMT time (as indicated by the "Z" at the end), *not* local time
*/
function parseDate(str) {
try {
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return new Date(Date.parse(str));
}
catch (e) {
throw new Error("Can't parse date from " + str + ": " + e.stack);
}
}
function toBase64(plainText) {
return Buffer.from(plainText).toString('base64');
}
function fromBase64(encodedText) {
return Buffer.from(encodedText, 'base64');
}
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function hmac(secret, value) {
const hmac = crypto.createHmac('sha256', Buffer.from(secret.toString(), 'ASCII'));
hmac.update(value.toString());
return hmac.digest('base64');
}
function isElectron() {
return !!process.versions['electron'];
}
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function hash(text) {
return crypto.createHash('sha1').update(text).digest('base64');
}
function isEmptyOrWhitespace(str) {
return str === null || str.match(/^ *$/) !== null;
}
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function getDateTimeForFile() {
return new Date().toISOString().substr(0, 19).replace(/:/g, '');
}
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module.exports = {
randomSecureToken,
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randomString,
nowDate,
dateStr,
parseDate,
newNoteId,
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newNoteTreeId,
newNoteHistoryId,
toBase64,
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fromBase64,
hmac,
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isElectron,
hash,
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isEmptyOrWhitespace,
getDateTimeForFile
};