server/lib/activitypub/process/process-undo.ts

   1 import { ActivityUndo } from '../../../../shared/models/activitypub/activity'
   2 import { logger } from '../../../helpers/logger'
   3 import { database as db } from '../../../initializers'
   4
   5 async function processUndoActivity (activity: ActivityUndo) {
   6   const activityToUndo = activity.object
   7
   8   if (activityToUndo.type === 'Follow') {
   9     const follower = await db.Account.loadByUrl(activity.actor)
  10     const following = await db.Account.loadByUrl(activityToUndo.object)
  11     const accountFollow = await db.AccountFollow.loadByAccountAndTarget(follower.id, following.id)
  12
  13     if (!accountFollow) throw new Error(`'Unknown account follow (${follower.id} -> ${following.id}.`)
  14
  15     await accountFollow.destroy()
  16
  17     return undefined
  18   }
  19
  20   logger.warn('Unknown activity object type %s -> %s when undo activity.', activityToUndo.type, { activity: activity.id })
  21
  22   return undefined
  23 }
  24
  25 // ---------------------------------------------------------------------------
  26
  27 export {
  28   processUndoActivity
  29 }
  30
  31 // ---------------------------------------------------------------------------