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(serverActor.id, req.query.start, req.query.count, req.query.sort)
  65
  66   return res.json(getFormattedObjects(resultList.data, resultList.total))
  67 }
  68
  69 async function listFollowers (req: express.Request, res: express.Response, next: express.NextFunction) {
  70   const serverActor = await getServerActor()
  71   const resultList = await ActorFollowModel.listFollowersForApi(serverActor.id, req.query.start, req.query.count, req.query.sort)
  72
  73   return res.json(getFormattedObjects(resultList.data, resultList.total))
  74 }
  75
  76 async function followInstance (req: express.Request, res: express.Response, next: express.NextFunction) {
  77   const hosts = req.body.hosts as string[]
  78   const follower = await getServerActor()
  79
  80   for (const host of hosts) {
  81     const payload = {
  82       host,
  83       name: SERVER_ACTOR_NAME,
  84       followerActorId: follower.id
  85     }
  86
  87     JobQueue.Instance.createJob({ type: 'activitypub-follow', payload })
  88       .catch(err => logger.error('Cannot create follow job for %s.', host, err))
  89   }
  90
  91   return res.status(204).end()
  92 }
  93
  94 async function removeFollow (req: express.Request, res: express.Response, next: express.NextFunction) {
  95   const follow: ActorFollowModel = res.locals.follow
  96
  97   await sequelizeTypescript.transaction(async t => {
  98     if (follow.state === 'accepted') await sendUndoFollow(follow, t)
  99
 100     // Disable redundancy on unfollowed instances
 101     const server = follow.ActorFollowing.Server
 102     server.redundancyAllowed = false
 103     await server.save({ transaction: t })
 104
 105     // Async, could be long
 106     removeRedundancyOf(server.id)
 107       .catch(err => logger.error('Cannot remove redundancy of %s.', server.host, err))
 108
 109     await follow.destroy({ transaction: t })
 110   })
 111
 112   return res.status(204).end()
 113 }