import * as express from 'express'
import { body, param } from 'express-validator'
import { UserRight } from '../../../../shared'
import {
isVideoChannelDescriptionValid,
isVideoChannelNameValid,
isVideoChannelSupportValid
} from '../../../helpers/custom-validators/video-channels'
import { logger } from '../../../helpers/logger'
import { VideoChannelModel } from '../../../models/video/video-channel'
import { areValidationErrors } from '../utils'
import { isActorPreferredUsernameValid } from '../../../helpers/custom-validators/activitypub/actor'
import { ActorModel } from '../../../models/activitypub/actor'
import { isBooleanValid } from '../../../helpers/custom-validators/misc'
import { doesLocalVideoChannelNameExist, doesVideoChannelNameWithHostExist } from '../../../helpers/middlewares'
import { MChannelAccountDefault, MUser } from '@server/typings/models'
import { VIDEO_CHANNELS } from '@server/initializers/constants'
const videoChannelsAddValidator = [
body('name').custom(isActorPreferredUsernameValid).withMessage('Should have a valid channel name'),
body('displayName').custom(isVideoChannelNameValid).withMessage('Should have a valid display name'),
body('description').optional().custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
body('support').optional().custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
async (req: express.Request, res: express.Response, next: express.NextFunction) => {
logger.debug('Checking videoChannelsAdd parameters', { parameters: req.body })
if (areValidationErrors(req, res)) return
const actor = await ActorModel.loadLocalByName(req.body.name)
if (actor) {
res.status(409)
.send({ error: 'Another actor (account/channel) with this name on this instance already exists or has already existed.' })
.end()
return false
}
const count = await VideoChannelModel.countByAccount(res.locals.oauth.token.User.Account.id)
if (count > VIDEO_CHANNELS.MAX_PER_USER) {
res.status(400)
.send({ error: `You cannot create more than ${VIDEO_CHANNELS.MAX_PER_USER} channels` })
.end()
return false
}
return next()
}
]
const videoChannelsUpdateValidator = [
param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
body('displayName')
.optional()
.custom(isVideoChannelNameValid).withMessage('Should have a valid display name'),
body('description')
.optional()
.custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
body('support')
.optional()
.custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
body('bulkVideosSupportUpdate')
.optional()
.custom(isBooleanValid).withMessage('Should have a valid bulkVideosSupportUpdate boolean field'),
async (req: express.Request, res: express.Response, next: express.NextFunction) => {
logger.debug('Checking videoChannelsUpdate parameters', { parameters: req.body })
if (areValidationErrors(req, res)) return
if (!await doesVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
// We need to make additional checks
if (res.locals.videoChannel.Actor.isOwned() === false) {
return res.status(403)
.json({ error: 'Cannot update video channel of another server' })
.end()
}
if (res.locals.videoChannel.Account.userId !== res.locals.oauth.token.User.id) {
return res.status(403)
.json({ error: 'Cannot update video channel of another user' })
.end()
}
return next()
}
]
const videoChannelsRemoveValidator = [
param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
async (req: express.Request, res: express.Response, next: express.NextFunction) => {
logger.debug('Checking videoChannelsRemove parameters', { parameters: req.params })
if (areValidationErrors(req, res)) return
if (!await doesVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
if (!checkUserCanDeleteVideoChannel(res.locals.oauth.token.User, res.locals.videoChannel, res)) return
if (!await checkVideoChannelIsNotTheLastOne(res)) return
return next()
}
]
const videoChannelsNameWithHostValidator = [
param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
async (req: express.Request, res: express.Response, next: express.NextFunction) => {
logger.debug('Checking videoChannelsNameWithHostValidator parameters', { parameters: req.params })
if (areValidationErrors(req, res)) return
if (!await doesVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
return next()
}
]
const localVideoChannelValidator = [
param('name').custom(isVideoChannelNameValid).withMessage('Should have a valid video channel name'),
async (req: express.Request, res: express.Response, next: express.NextFunction) => {
logger.debug('Checking localVideoChannelValidator parameters', { parameters: req.params })
if (areValidationErrors(req, res)) return
if (!await doesLocalVideoChannelNameExist(req.params.name, res)) return
return next()
}
]
// ---------------------------------------------------------------------------
export {
videoChannelsAddValidator,
videoChannelsUpdateValidator,
videoChannelsRemoveValidator,
videoChannelsNameWithHostValidator,
localVideoChannelValidator
}
// ---------------------------------------------------------------------------
function checkUserCanDeleteVideoChannel (user: MUser, videoChannel: MChannelAccountDefault, res: express.Response) {
if (videoChannel.Actor.isOwned() === false) {
res.status(403)
.json({ error: 'Cannot remove video channel of another server.' })
.end()
return false
}
// Check if the user can delete the video channel
// The user can delete it if s/he is an admin
// Or if s/he is the video channel's account
if (user.hasRight(UserRight.REMOVE_ANY_VIDEO_CHANNEL) === false && videoChannel.Account.userId !== user.id) {
res.status(403)
.json({ error: 'Cannot remove video channel of another user' })
.end()
return false
}
return true
}
async function checkVideoChannelIsNotTheLastOne (res: express.Response) {
const count = await VideoChannelModel.countByAccount(res.locals.oauth.token.User.Account.id)
if (count <= 1) {
res.status(409)
.json({ error: 'Cannot remove the last channel of this user' })
.end()
return false
}
return true
}