Useful to avoid circular dependencies.
*/
+import * as bcrypt from 'bcrypt'
+import * as createTorrent from 'create-torrent'
+import { pseudoRandomBytes } from 'crypto'
+import { readdir, readFile, rename, stat, Stats, unlink, writeFile } from 'fs'
+import * as mkdirp from 'mkdirp'
import { join } from 'path'
+import * as pem from 'pem'
+import * as rimraf from 'rimraf'
function isTestInstance () {
return process.env.NODE_ENV === 'test'
}
function root () {
- // We are in /dist/helpers/utils.js
- return join(__dirname, '..', '..', '..')
+ // We are in /helpers/utils.js
+ const paths = [ __dirname, '..', '..' ]
+
+ // We are under /dist directory
+ if (process.mainModule.filename.endsWith('.ts') === false) {
+ paths.push('..')
+ }
+
+ return join.apply(null, paths)
+}
+
+// Thanks: https://stackoverflow.com/a/12034334
+function escapeHTML (stringParam) {
+ 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 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 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)
+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
+ root,
+ escapeHTML,
+ pageToStartAndCount,
+
+ promisify0,
+ promisify1,
+
+ readdirPromise,
+ readFileBufferPromise,
+ unlinkPromise,
+ renamePromise,
+ writeFilePromise,
+ mkdirpPromise,
+ pseudoRandomBytesPromise,
+ createPrivateKey,
+ getPublicKey,
+ bcryptComparePromise,
+ bcryptGenSaltPromise,
+ bcryptHashPromise,
+ createTorrentPromise,
+ rimrafPromise,
+ statPromise
}