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Commit | Line | Data |
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1 | 'use strict' | |
2 | ||
3 | const crypto = require('crypto') | |
4 | const retry = require('async/retry') | |
5 | ||
6 | const logger = require('./logger') | |
7 | ||
8 | const utils = { | |
9 | badRequest, | |
10 | cleanForExit, | |
11 | generateRandomString, | |
12 | isTestInstance, | |
13 | getFormatedObjects, | |
14 | transactionRetryer | |
15 | } | |
16 | ||
17 | function badRequest (req, res, next) { | |
18 | res.type('json').status(400).end() | |
19 | } | |
20 | ||
21 | function generateRandomString (size, callback) { | |
22 | crypto.pseudoRandomBytes(size, function (err, raw) { | |
23 | if (err) return callback(err) | |
24 | ||
25 | callback(null, raw.toString('hex')) | |
26 | }) | |
27 | } | |
28 | ||
29 | function cleanForExit (webtorrentProcess) { | |
30 | logger.info('Gracefully exiting.') | |
31 | process.kill(-webtorrentProcess.pid) | |
32 | } | |
33 | ||
34 | function isTestInstance () { | |
35 | return (process.env.NODE_ENV === 'test') | |
36 | } | |
37 | ||
38 | function getFormatedObjects (objects, objectsTotal) { | |
39 | const formatedObjects = [] | |
40 | ||
41 | objects.forEach(function (object) { | |
42 | formatedObjects.push(object.toFormatedJSON()) | |
43 | }) | |
44 | ||
45 | return { | |
46 | total: objectsTotal, | |
47 | data: formatedObjects | |
48 | } | |
49 | } | |
50 | ||
51 | function transactionRetryer (func, callback) { | |
52 | retry({ | |
53 | times: 5, | |
54 | ||
55 | errorFilter: function (err) { | |
56 | const willRetry = (err.name === 'SequelizeDatabaseError') | |
57 | logger.debug('Maybe retrying the transaction function.', { willRetry }) | |
58 | return willRetry | |
59 | } | |
60 | }, func, callback) | |
61 | } | |
62 | ||
63 | // --------------------------------------------------------------------------- | |
64 | ||
65 | module.exports = utils |