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import { ActivityFollow } from '../../../shared/models/activitypub/activity'
import { getOrCreateAccount, retryTransactionWrapper } from '../../helpers'
import { database as db } from '../../initializers'
import { AccountInstance } from '../../models/account/account-interface'
import { sendAccept } from './send-request'
import { logger } from '../../helpers/logger'
async function processFollowActivity (activity: ActivityFollow) {
const activityObject = activity.object
const account = await getOrCreateAccount(activity.actor)
return processFollow(account, activityObject)
}
// ---------------------------------------------------------------------------
export {
processFollowActivity
}
// ---------------------------------------------------------------------------
function processFollow (account: AccountInstance, targetAccountURL: string) {
const options = {
arguments: [ account, targetAccountURL ],
errorMessage: 'Cannot follow with many retries.'
}
return retryTransactionWrapper(follow, options)
}
async function follow (account: AccountInstance, targetAccountURL: string) {
await db.sequelize.transaction(async t => {
const targetAccount = await db.Account.loadByUrl(targetAccountURL, t)
if (targetAccount === undefined) throw new Error('Unknown account')
if (targetAccount.isOwned() === false) throw new Error('This is not a local account.')
await db.AccountFollow.findOrCreate({
where: {
accountId: account.id,
targetAccountId: targetAccount.id
},
defaults: {
accountId: account.id,
targetAccountId: targetAccount.id,
state: 'accepted'
},
transaction: t
})
// Target sends to account he accepted the follow request
return sendAccept(targetAccount, account, t)
})
logger.info('Account uuid %s is followed by account %s.', account.url, targetAccountURL)
}
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