ccaee43a66c7317bbc8997309b975c516d3091d5
[oweals/peertube.git] / server / lib / activitypub / process / process-follow.ts
1 import { ActivityFollow } from '../../../../shared/models/activitypub'
2 import { logger, retryTransactionWrapper } from '../../../helpers'
3 import { sequelizeTypescript } from '../../../initializers'
4 import { AccountModel } from '../../../models/account/account'
5 import { AccountFollowModel } from '../../../models/account/account-follow'
6 import { getOrCreateAccountAndServer } from '../account'
7 import { sendAccept } from '../send'
8
9 async function processFollowActivity (activity: ActivityFollow) {
10   const activityObject = activity.object
11   const account = await getOrCreateAccountAndServer(activity.actor)
12
13   return processFollow(account, activityObject)
14 }
15
16 // ---------------------------------------------------------------------------
17
18 export {
19   processFollowActivity
20 }
21
22 // ---------------------------------------------------------------------------
23
24 function processFollow (account: AccountModel, targetAccountURL: string) {
25   const options = {
26     arguments: [ account, targetAccountURL ],
27     errorMessage: 'Cannot follow with many retries.'
28   }
29
30   return retryTransactionWrapper(follow, options)
31 }
32
33 async function follow (account: AccountModel, targetAccountURL: string) {
34   await sequelizeTypescript.transaction(async t => {
35     const targetAccount = await AccountModel.loadByUrl(targetAccountURL, t)
36
37     if (!targetAccount) throw new Error('Unknown account')
38     if (targetAccount.isOwned() === false) throw new Error('This is not a local account.')
39
40     const [ accountFollow ] = await AccountFollowModel.findOrCreate({
41       where: {
42         accountId: account.id,
43         targetAccountId: targetAccount.id
44       },
45       defaults: {
46         accountId: account.id,
47         targetAccountId: targetAccount.id,
48         state: 'accepted'
49       },
50       transaction: t
51     })
52
53     if (accountFollow.state !== 'accepted') {
54       accountFollow.state = 'accepted'
55       await accountFollow.save({ transaction: t })
56     }
57
58     accountFollow.AccountFollower = account
59     accountFollow.AccountFollowing = targetAccount
60
61     // Target sends to account he accepted the follow request
62     return sendAccept(accountFollow, t)
63   })
64
65   logger.info('Account uuid %s is followed by account %s.', account.url, targetAccountURL)
66 }