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import * as express from 'express'
import * as Sequelize from 'sequelize'
import { pseudoRandomBytesPromise } from './core-utils'
import { CONFIG, database as db } from '../initializers'
import { ResultList } from '../../shared'
import { VideoResolution } from '../../shared/models/videos/video-resolution.enum'
function badRequest (req: express.Request, res: express.Response, next: express.NextFunction) {
return res.type('json').status(400).end()
}
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 db.User.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.toString()] === true && videoFileHeight > resolution) {
resolutionsEnabled.push(resolution)
}
}
return resolutionsEnabled
}
function resetSequelizeInstance (instance: Sequelize.Instance<any>, savedFields: object) {
Object.keys(savedFields).forEach(key => {
const value = savedFields[key]
instance.set(key, value)
})
}
type SortType = { sortModel: any, sortValue: string }
// ---------------------------------------------------------------------------
export {
badRequest,
generateRandomString,
getFormattedObjects,
isSignupAllowed,
computeResolutionsToTranscode,
resetSequelizeInstance,
SortType
}
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