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/*
Different from 'utils' because we don't not import other PeerTube modules.
Useful to avoid circular dependencies.
*/
import * as bcrypt from 'bcrypt'
import * as createTorrent from 'create-torrent'
import { pseudoRandomBytes } from 'crypto'
import { copyFile, readdir, readFile, rename, stat, Stats, unlink, writeFile } from 'fs'
import * as mkdirp from 'mkdirp'
import { isAbsolute, join } from 'path'
import * as pem from 'pem'
import * as rimraf from 'rimraf'
import { URL } from 'url'
import { truncate } from 'lodash'
function sanitizeUrl (url: string) {
const urlObject = new URL(url)
if (urlObject.protocol === 'https:' && urlObject.port === '443') {
urlObject.port = ''
} else if (urlObject.protocol === 'http:' && urlObject.port === '80') {
urlObject.port = ''
}
return urlObject.href.replace(/\/$/, '')
}
// Don't import remote scheme from constants because we are in core utils
function sanitizeHost (host: string, remoteScheme: string) {
const toRemove = remoteScheme === 'https' ? 443 : 80
return host.replace(new RegExp(`:${toRemove}$`), '')
}
function isTestInstance () {
return process.env.NODE_ENV === 'test'
}
function root () {
// We are in /helpers/utils.js
const paths = [ __dirname, '..', '..' ]
// We are under /dist directory
if (process.mainModule && process.mainModule.filename.endsWith('.ts') === false) {
paths.push('..')
}
return join.apply(null, paths)
}
// Thanks: https://stackoverflow.com/a/12034334
function escapeHTML (stringParam) {
if (!stringParam) return ''
const entityMap = {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
"'": ''',
'/': '/',
'`': '`',
'=': '='
}
return String(stringParam).replace(/[&<>"'`=\/]/g, s => entityMap[s])
}
function pageToStartAndCount (page: number, itemsPerPage: number) {
const start = (page - 1) * itemsPerPage
return { start, count: itemsPerPage }
}
function buildPath (path: string) {
if (isAbsolute(path)) return path
return join(root(), path)
}
// Consistent with .length, lodash truncate function is not
function peertubeTruncate (str: string, maxLength: number) {
const options = {
length: maxLength
}
const truncatedStr = truncate(str, options)
// The truncated string is okay, we can return it
if (truncatedStr.length <= maxLength) return truncatedStr
// Lodash takes into account all UTF characters, whereas String.prototype.length does not: some characters have a length of 2
// We always use the .length so we need to truncate more if needed
options.length -= truncatedStr.length - maxLength
return truncate(str, options)
}
function promisify0<A> (func: (cb: (err: any, result: A) => void) => void): () => Promise<A> {
return function promisified (): Promise<A> {
return new Promise<A>((resolve: (arg: A) => void, reject: (err: any) => void) => {
func.apply(null, [ (err: any, res: A) => err ? reject(err) : resolve(res) ])
})
}
}
// Thanks to https://gist.github.com/kumasento/617daa7e46f13ecdd9b2
function promisify1<T, A> (func: (arg: T, cb: (err: any, result: A) => void) => void): (arg: T) => Promise<A> {
return function promisified (arg: T): Promise<A> {
return new Promise<A>((resolve: (arg: A) => void, reject: (err: any) => void) => {
func.apply(null, [ arg, (err: any, res: A) => err ? reject(err) : resolve(res) ])
})
}
}
function promisify1WithVoid<T> (func: (arg: T, cb: (err: any) => void) => void): (arg: T) => Promise<void> {
return function promisified (arg: T): Promise<void> {
return new Promise<void>((resolve: () => void, reject: (err: any) => void) => {
func.apply(null, [ arg, (err: any) => err ? reject(err) : resolve() ])
})
}
}
function promisify2<T, U, A> (func: (arg1: T, arg2: U, cb: (err: any, result: A) => void) => void): (arg1: T, arg2: U) => Promise<A> {
return function promisified (arg1: T, arg2: U): Promise<A> {
return new Promise<A>((resolve: (arg: A) => void, reject: (err: any) => void) => {
func.apply(null, [ arg1, arg2, (err: any, res: A) => err ? reject(err) : resolve(res) ])
})
}
}
function promisify2WithVoid<T, U> (func: (arg1: T, arg2: U, cb: (err: any) => void) => void): (arg1: T, arg2: U) => Promise<void> {
return function promisified (arg1: T, arg2: U): Promise<void> {
return new Promise<void>((resolve: () => void, reject: (err: any) => void) => {
func.apply(null, [ arg1, arg2, (err: any) => err ? reject(err) : resolve() ])
})
}
}
const copyFilePromise = promisify2WithVoid<string, string>(copyFile)
const readFileBufferPromise = promisify1<string, Buffer>(readFile)
const unlinkPromise = promisify1WithVoid<string>(unlink)
const renamePromise = promisify2WithVoid<string, string>(rename)
const writeFilePromise = promisify2WithVoid<string, any>(writeFile)
const readdirPromise = promisify1<string, string[]>(readdir)
const mkdirpPromise = promisify1<string, string>(mkdirp)
// we cannot modify the Promise types, so we should make the promisify instance check mkdirp
const pseudoRandomBytesPromise = promisify1<number, Buffer>(pseudoRandomBytes)
const createPrivateKey = promisify1<number, { key: string }>(pem.createPrivateKey)
const getPublicKey = promisify1<string, { publicKey: string }>(pem.getPublicKey)
const bcryptComparePromise = promisify2<any, string, boolean>(bcrypt.compare)
const bcryptGenSaltPromise = promisify1<number, string>(bcrypt.genSalt)
const bcryptHashPromise = promisify2<any, string | number, string>(bcrypt.hash)
const createTorrentPromise = promisify2<string, any, any>(createTorrent)
const rimrafPromise = promisify1WithVoid<string>(rimraf)
const statPromise = promisify1<string, Stats>(stat)
// ---------------------------------------------------------------------------
export {
isTestInstance,
root,
escapeHTML,
pageToStartAndCount,
sanitizeUrl,
sanitizeHost,
buildPath,
peertubeTruncate,
promisify0,
promisify1,
copyFilePromise,
readdirPromise,
readFileBufferPromise,
unlinkPromise,
renamePromise,
writeFilePromise,
mkdirpPromise,
pseudoRandomBytesPromise,
createPrivateKey,
getPublicKey,
bcryptComparePromise,
bcryptGenSaltPromise,
bcryptHashPromise,
createTorrentPromise,
rimrafPromise,
statPromise
}
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