server/controllers/api/server/follows.ts

   1 import * as express from 'express'
   2 import { UserRight } from '../../../../shared/models/users'
   3 import { logger } from '../../../helpers/logger'
   4 import { getFormattedObjects, getServerActor } from '../../../helpers/utils'
   5 import { sequelizeTypescript, SERVER_ACTOR_NAME } from '../../../initializers'
   6 import { sendUndoFollow } from '../../../lib/activitypub/send'
   7 import {
   8   asyncMiddleware,
   9   authenticate,
  10   ensureUserHasRight,
  11   paginationValidator,
  12   removeFollowingValidator,
  13   setBodyHostsPort,
  14   setDefaultPagination,
  15   setDefaultSort
  16 } from '../../../middlewares'
  17 import { followersSortValidator, followingSortValidator, followValidator } from '../../../middlewares/validators'
  18 import { ActorFollowModel } from '../../../models/activitypub/actor-follow'
  19 import { JobQueue } from '../../../lib/job-queue'
  20 import { removeRedundancyOf } from '../../../lib/redundancy'
  21
  22 const serverFollowsRouter = express.Router()
  23 serverFollowsRouter.get('/following',
  24   paginationValidator,
  25   followingSortValidator,
  26   setDefaultSort,
  27   setDefaultPagination,
  28   asyncMiddleware(listFollowing)
  29 )
  30
  31 serverFollowsRouter.post('/following',
  32   authenticate,
  33   ensureUserHasRight(UserRight.MANAGE_SERVER_FOLLOW),
  34   followValidator,
  35   setBodyHostsPort,
  36   asyncMiddleware(followInstance)
  37 )
  38
  39 serverFollowsRouter.delete('/following/:host',
  40   authenticate,
  41   ensureUserHasRight(UserRight.MANAGE_SERVER_FOLLOW),
  42   asyncMiddleware(removeFollowingValidator),
  43   asyncMiddleware(removeFollow)
  44 )
  45
  46 serverFollowsRouter.get('/followers',
  47   paginationValidator,
  48   followersSortValidator,
  49   setDefaultSort,
  50   setDefaultPagination,
  51   asyncMiddleware(listFollowers)
  52 )
  53
  54 // ---------------------------------------------------------------------------
  55
  56 export {
  57   serverFollowsRouter
  58 }
  59
  60 // ---------------------------------------------------------------------------
  61
  62 async function listFollowing (req: express.Request, res: express.Response, next: express.NextFunction) {
  63   const serverActor = await getServerActor()
  64   const resultList = await ActorFollowModel.listFollowingForApi(
  65     serverActor.id,
  66     req.query.start,
  67     req.query.count,
  68     req.query.sort,
  69     req.query.search
  70   )
  71
  72   return res.json(getFormattedObjects(resultList.data, resultList.total))
  73 }
  74
  75 async function listFollowers (req: express.Request, res: express.Response, next: express.NextFunction) {
  76   const serverActor = await getServerActor()
  77   const resultList = await ActorFollowModel.listFollowersForApi(
  78     serverActor.id,
  79     req.query.start,
  80     req.query.count,
  81     req.query.sort,
  82     req.query.search
  83   )
  84
  85   return res.json(getFormattedObjects(resultList.data, resultList.total))
  86 }
  87
  88 async function followInstance (req: express.Request, res: express.Response, next: express.NextFunction) {
  89   const hosts = req.body.hosts as string[]
  90   const follower = await getServerActor()
  91
  92   for (const host of hosts) {
  93     const payload = {
  94       host,
  95       name: SERVER_ACTOR_NAME,
  96       followerActorId: follower.id
  97     }
  98
  99     JobQueue.Instance.createJob({ type: 'activitypub-follow', payload })
 100       .catch(err => logger.error('Cannot create follow job for %s.', host, err))
 101   }
 102
 103   return res.status(204).end()
 104 }
 105
 106 async function removeFollow (req: express.Request, res: express.Response, next: express.NextFunction) {
 107   const follow: ActorFollowModel = res.locals.follow
 108
 109   await sequelizeTypescript.transaction(async t => {
 110     if (follow.state === 'accepted') await sendUndoFollow(follow, t)
 111
 112     // Disable redundancy on unfollowed instances
 113     const server = follow.ActorFollowing.Server
 114     server.redundancyAllowed = false
 115     await server.save({ transaction: t })
 116
 117     // Async, could be long
 118     removeRedundancyOf(server.id)
 119       .catch(err => logger.error('Cannot remove redundancy of %s.', server.host, err))
 120
 121     await follow.destroy({ transaction: t })
 122   })
 123
 124   return res.status(204).end()
 125 }