PeerTube/server/helpers/utils.ts

165 lines
3.9 KiB
TypeScript

import * as express from 'express'
import * as multer from 'multer'
import { Model } from 'sequelize-typescript'
import { ResultList } from '../../shared'
import { VideoResolution } from '../../shared/models/videos'
import { CONFIG, REMOTE_SCHEME } from '../initializers'
import { UserModel } from '../models/account/user'
import { ActorModel } from '../models/activitypub/actor'
import { ApplicationModel } from '../models/application/application'
import { pseudoRandomBytesPromise } from './core-utils'
import { logger } from './logger'
function getHostWithPort (host: string) {
const splitted = host.split(':')
// The port was not specified
if (splitted.length === 1) {
if (REMOTE_SCHEME.HTTP === 'https') return host + ':443'
return host + ':80'
}
return host
}
function badRequest (req: express.Request, res: express.Response, next: express.NextFunction) {
return res.type('json').status(400).end()
}
function createReqFiles (
fieldNames: string[],
mimeTypes: { [ id: string ]: string },
destinations: { [ fieldName: string ]: string }
) {
const storage = multer.diskStorage({
destination: (req, file, cb) => {
cb(null, destinations[file.fieldname])
},
filename: async (req, file, cb) => {
const extension = mimeTypes[file.mimetype]
let randomString = ''
try {
randomString = await generateRandomString(16)
} catch (err) {
logger.error('Cannot generate random string for file name.', { err })
randomString = 'fake-random-string'
}
cb(null, randomString + extension)
}
})
const fields = []
for (const fieldName of fieldNames) {
fields.push({
name: fieldName,
maxCount: 1
})
}
return multer({ storage }).fields(fields)
}
async function generateRandomString (size: number) {
const raw = await pseudoRandomBytesPromise(size)
return raw.toString('hex')
}
interface FormattableToJSON {
toFormattedJSON ()
}
function getFormattedObjects<U, T extends FormattableToJSON> (objects: T[], objectsTotal: number) {
const formattedObjects: U[] = []
objects.forEach(object => {
formattedObjects.push(object.toFormattedJSON())
})
const res: ResultList<U> = {
total: objectsTotal,
data: formattedObjects
}
return res
}
async function isSignupAllowed () {
if (CONFIG.SIGNUP.ENABLED === false) {
return false
}
// No limit and signup is enabled
if (CONFIG.SIGNUP.LIMIT === -1) {
return true
}
const totalUsers = await UserModel.countTotal()
return totalUsers < CONFIG.SIGNUP.LIMIT
}
function computeResolutionsToTranscode (videoFileHeight: number) {
const resolutionsEnabled: number[] = []
const configResolutions = CONFIG.TRANSCODING.RESOLUTIONS
const resolutions = [
VideoResolution.H_240P,
VideoResolution.H_360P,
VideoResolution.H_480P,
VideoResolution.H_720P,
VideoResolution.H_1080P
]
for (const resolution of resolutions) {
if (configResolutions[resolution + 'p'] === true && videoFileHeight > resolution) {
resolutionsEnabled.push(resolution)
}
}
return resolutionsEnabled
}
function resetSequelizeInstance (instance: Model<any>, savedFields: object) {
Object.keys(savedFields).forEach(key => {
const value = savedFields[key]
instance.set(key, value)
})
}
let serverActor: ActorModel
async function getServerActor () {
if (serverActor === undefined) {
const application = await ApplicationModel.load()
serverActor = application.Account.Actor
}
if (!serverActor) {
logger.error('Cannot load server actor.')
process.exit(0)
}
return Promise.resolve(serverActor)
}
type SortType = { sortModel: any, sortValue: string }
// ---------------------------------------------------------------------------
export {
badRequest,
generateRandomString,
getFormattedObjects,
isSignupAllowed,
computeResolutionsToTranscode,
resetSequelizeInstance,
getServerActor,
SortType,
getHostWithPort,
createReqFiles
}