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import * as express from 'express'
import { getServerActor } from '@server/models/application/application'
import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
import { UserRight } from '../../../../shared/models/users'
import { logger } from '../../../helpers/logger'
import { getFormattedObjects } from '../../../helpers/utils'
import { SERVER_ACTOR_NAME } from '../../../initializers/constants'
import { sequelizeTypescript } from '../../../initializers/database'
import { autoFollowBackIfNeeded } from '../../../lib/activitypub/follow'
import { sendAccept, sendReject, sendUndoFollow } from '../../../lib/activitypub/send'
import { JobQueue } from '../../../lib/job-queue'
import { removeRedundanciesOfServer } from '../../../lib/redundancy'
import {
asyncMiddleware,
authenticate,
ensureUserHasRight,
paginationValidator,
setBodyHostsPort,
setDefaultPagination,
setDefaultSort
} from '../../../middlewares'
import {
acceptOrRejectFollowerValidator,
followersSortValidator,
followingSortValidator,
followValidator,
getFollowerValidator,
listFollowsValidator,
removeFollowingValidator
} from '../../../middlewares/validators'
import { ActorFollowModel } from '../../../models/actor/actor-follow'
const serverFollowsRouter = express.Router()
serverFollowsRouter.get('/following',
listFollowsValidator,
paginationValidator,
followingSortValidator,
setDefaultSort,
setDefaultPagination,
asyncMiddleware(listFollowing)
)
serverFollowsRouter.post('/following',
authenticate,
ensureUserHasRight(UserRight.MANAGE_SERVER_FOLLOW),
followValidator,
setBodyHostsPort,
asyncMiddleware(followInstance)
)
serverFollowsRouter.delete('/following/:host',
authenticate,
ensureUserHasRight(UserRight.MANAGE_SERVER_FOLLOW),
asyncMiddleware(removeFollowingValidator),
asyncMiddleware(removeFollowing)
)
serverFollowsRouter.get('/followers',
listFollowsValidator,
paginationValidator,
followersSortValidator,
setDefaultSort,
setDefaultPagination,
asyncMiddleware(listFollowers)
)
serverFollowsRouter.delete('/followers/:nameWithHost',
authenticate,
ensureUserHasRight(UserRight.MANAGE_SERVER_FOLLOW),
asyncMiddleware(getFollowerValidator),
asyncMiddleware(removeOrRejectFollower)
)
serverFollowsRouter.post('/followers/:nameWithHost/reject',
authenticate,
ensureUserHasRight(UserRight.MANAGE_SERVER_FOLLOW),
asyncMiddleware(getFollowerValidator),
acceptOrRejectFollowerValidator,
asyncMiddleware(removeOrRejectFollower)
)
serverFollowsRouter.post('/followers/:nameWithHost/accept',
authenticate,
ensureUserHasRight(UserRight.MANAGE_SERVER_FOLLOW),
asyncMiddleware(getFollowerValidator),
acceptOrRejectFollowerValidator,
asyncMiddleware(acceptFollower)
)
// ---------------------------------------------------------------------------
export {
serverFollowsRouter
}
// ---------------------------------------------------------------------------
async function listFollowing (req: express.Request, res: express.Response) {
const serverActor = await getServerActor()
const resultList = await ActorFollowModel.listFollowingForApi({
id: serverActor.id,
start: req.query.start,
count: req.query.count,
sort: req.query.sort,
search: req.query.search,
actorType: req.query.actorType,
state: req.query.state
})
return res.json(getFormattedObjects(resultList.data, resultList.total))
}
async function listFollowers (req: express.Request, res: express.Response) {
const serverActor = await getServerActor()
const resultList = await ActorFollowModel.listFollowersForApi({
actorId: serverActor.id,
start: req.query.start,
count: req.query.count,
sort: req.query.sort,
search: req.query.search,
actorType: req.query.actorType,
state: req.query.state
})
return res.json(getFormattedObjects(resultList.data, resultList.total))
}
async function followInstance (req: express.Request, res: express.Response) {
const hosts = req.body.hosts as string[]
const follower = await getServerActor()
for (const host of hosts) {
const payload = {
host,
name: SERVER_ACTOR_NAME,
followerActorId: follower.id
}
JobQueue.Instance.createJob({ type: 'activitypub-follow', payload })
}
return res.status(HttpStatusCode.NO_CONTENT_204).end()
}
async function removeFollowing (req: express.Request, res: express.Response) {
const follow = res.locals.follow
await sequelizeTypescript.transaction(async t => {
if (follow.state === 'accepted') await sendUndoFollow(follow, t)
// Disable redundancy on unfollowed instances
const server = follow.ActorFollowing.Server
server.redundancyAllowed = false
await server.save({ transaction: t })
// Async, could be long
removeRedundanciesOfServer(server.id)
.catch(err => logger.error('Cannot remove redundancy of %s.', server.host, err))
await follow.destroy({ transaction: t })
})
return res.status(HttpStatusCode.NO_CONTENT_204).end()
}
async function removeOrRejectFollower (req: express.Request, res: express.Response) {
const follow = res.locals.follow
await sendReject(follow.url, follow.ActorFollower, follow.ActorFollowing)
await follow.destroy()
return res.status(HttpStatusCode.NO_CONTENT_204).end()
}
async function acceptFollower (req: express.Request, res: express.Response) {
const follow = res.locals.follow
sendAccept(follow)
follow.state = 'accepted'
await follow.save()
await autoFollowBackIfNeeded(follow)
return res.status(HttpStatusCode.NO_CONTENT_204).end()
}
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