1 import * as express from 'express'
2 import { UserRight } from '../../../../shared/models/users'
3 import { sanitizeHost } from '../../../helpers/core-utils'
4 import { retryTransactionWrapper } from '../../../helpers/database-utils'
5 import { logger } from '../../../helpers/logger'
6 import { getFormattedObjects, getServerActor } from '../../../helpers/utils'
7 import { loadActorUrlOrGetFromWebfinger } from '../../../helpers/webfinger'
8 import { REMOTE_SCHEME, sequelizeTypescript, SERVER_ACTOR_NAME } from '../../../initializers'
9 import { getOrCreateActorAndServerAndModel } from '../../../lib/activitypub/actor'
10 import { sendFollow, sendUndoFollow } from '../../../lib/activitypub/send'
12 asyncMiddleware, authenticate, ensureUserHasRight, paginationValidator, removeFollowingValidator, setBodyHostsPort, setDefaultSort,
14 } from '../../../middlewares'
15 import { followersSortValidator, followingSortValidator, followValidator } from '../../../middlewares/validators'
16 import { ActorModel } from '../../../models/activitypub/actor'
17 import { ActorFollowModel } from '../../../models/activitypub/actor-follow'
19 const serverFollowsRouter = express.Router()
20 serverFollowsRouter.get('/following',
22 followingSortValidator,
25 asyncMiddleware(listFollowing)
28 serverFollowsRouter.post('/following',
30 ensureUserHasRight(UserRight.MANAGE_SERVER_FOLLOW),
33 asyncMiddleware(followRetry)
36 serverFollowsRouter.delete('/following/:host',
38 ensureUserHasRight(UserRight.MANAGE_SERVER_FOLLOW),
39 asyncMiddleware(removeFollowingValidator),
40 asyncMiddleware(removeFollow)
43 serverFollowsRouter.get('/followers',
45 followersSortValidator,
48 asyncMiddleware(listFollowers)
51 // ---------------------------------------------------------------------------
57 // ---------------------------------------------------------------------------
59 async function listFollowing (req: express.Request, res: express.Response, next: express.NextFunction) {
60 const serverActor = await getServerActor()
61 const resultList = await ActorFollowModel.listFollowingForApi(serverActor.id, req.query.start, req.query.count, req.query.sort)
63 return res.json(getFormattedObjects(resultList.data, resultList.total))
66 async function listFollowers (req: express.Request, res: express.Response, next: express.NextFunction) {
67 const serverActor = await getServerActor()
68 const resultList = await ActorFollowModel.listFollowersForApi(serverActor.id, req.query.start, req.query.count, req.query.sort)
70 return res.json(getFormattedObjects(resultList.data, resultList.total))
73 async function followRetry (req: express.Request, res: express.Response, next: express.NextFunction) {
74 const hosts = req.body.hosts as string[]
75 const fromActor = await getServerActor()
77 const tasks: Promise<any>[] = []
78 const actorName = SERVER_ACTOR_NAME
80 for (const host of hosts) {
81 const sanitizedHost = sanitizeHost(host, REMOTE_SCHEME.HTTP)
83 // We process each host in a specific transaction
84 // First, we add the follow request in the database
85 // Then we send the follow request to other actor
86 const p = loadActorUrlOrGetFromWebfinger(actorName, sanitizedHost)
87 .then(actorUrl => getOrCreateActorAndServerAndModel(actorUrl))
88 .then(targetActor => {
90 arguments: [ fromActor, targetActor ],
91 errorMessage: 'Cannot follow with many retries.'
94 return retryTransactionWrapper(follow, options)
96 .catch(err => logger.warn('Cannot follow server %s.', sanitizedHost, err))
101 // Don't make the client wait the tasks
103 .catch(err => logger.error('Error in follow.', err))
105 return res.status(204).end()
108 function follow (fromActor: ActorModel, targetActor: ActorModel) {
109 return sequelizeTypescript.transaction(async t => {
110 const [ actorFollow ] = await ActorFollowModel.findOrCreate({
112 actorId: fromActor.id,
113 targetActorId: targetActor.id
117 actorId: fromActor.id,
118 targetActorId: targetActor.id
122 actorFollow.ActorFollowing = targetActor
123 actorFollow.ActorFollower = fromActor
125 // Send a notification to remote server
126 await sendFollow(actorFollow)
130 async function removeFollow (req: express.Request, res: express.Response, next: express.NextFunction) {
131 const follow: ActorFollowModel = res.locals.follow
133 await sequelizeTypescript.transaction(async t => {
134 if (follow.state === 'accepted') await sendUndoFollow(follow, t)
136 await follow.destroy({ transaction: t })
139 // Destroy the actor that will destroy video channels, videos and video files too
140 // This could be long so don't wait this task
141 const following = follow.ActorFollowing
143 .catch(err => logger.error('Cannot destroy actor that we do not follow anymore %s.', following.url, err))
145 return res.status(204).end()