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1 | import * as express from 'express' | |
2 | import { Activity, ActivityPubCollection, ActivityPubOrderedCollection, ActivityType, RootActivity } from '../../../shared' | |
3 | import { logger } from '../../helpers' | |
4 | import { isActivityValid } from '../../helpers/custom-validators/activitypub/activity' | |
5 | import { processCreateActivity, processUpdateActivity, processUndoActivity } from '../../lib' | |
6 | import { processAcceptActivity } from '../../lib/activitypub/process/process-accept' | |
7 | import { processAddActivity } from '../../lib/activitypub/process/process-add' | |
8 | import { processAnnounceActivity } from '../../lib/activitypub/process/process-announce' | |
9 | import { processDeleteActivity } from '../../lib/activitypub/process/process-delete' | |
10 | import { processFollowActivity } from '../../lib/activitypub/process/process-follow' | |
11 | import { asyncMiddleware, checkSignature, localAccountValidator, signatureValidator } from '../../middlewares' | |
12 | import { activityPubValidator } from '../../middlewares/validators/activitypub/activity' | |
13 | import { AccountInstance } from '../../models/account/account-interface' | |
14 | ||
15 | const processActivity: { [ P in ActivityType ]: (activity: Activity, inboxAccount?: AccountInstance) => Promise<any> } = { | |
16 | Create: processCreateActivity, | |
17 | Add: processAddActivity, | |
18 | Update: processUpdateActivity, | |
19 | Delete: processDeleteActivity, | |
20 | Follow: processFollowActivity, | |
21 | Accept: processAcceptActivity, | |
22 | Announce: processAnnounceActivity, | |
23 | Undo: processUndoActivity | |
24 | } | |
25 | ||
26 | const inboxRouter = express.Router() | |
27 | ||
28 | inboxRouter.post('/inbox', | |
29 | signatureValidator, | |
30 | asyncMiddleware(checkSignature), | |
31 | activityPubValidator, | |
32 | asyncMiddleware(inboxController) | |
33 | ) | |
34 | ||
35 | inboxRouter.post('/account/:name/inbox', | |
36 | signatureValidator, | |
37 | asyncMiddleware(checkSignature), | |
38 | localAccountValidator, | |
39 | activityPubValidator, | |
40 | asyncMiddleware(inboxController) | |
41 | ) | |
42 | ||
43 | // --------------------------------------------------------------------------- | |
44 | ||
45 | export { | |
46 | inboxRouter | |
47 | } | |
48 | ||
49 | // --------------------------------------------------------------------------- | |
50 | ||
51 | async function inboxController (req: express.Request, res: express.Response, next: express.NextFunction) { | |
52 | const rootActivity: RootActivity = req.body | |
53 | let activities: Activity[] = [] | |
54 | ||
55 | if ([ 'Collection', 'CollectionPage' ].indexOf(rootActivity.type) !== -1) { | |
56 | activities = (rootActivity as ActivityPubCollection).items | |
57 | } else if ([ 'OrderedCollection', 'OrderedCollectionPage' ].indexOf(rootActivity.type) !== -1) { | |
58 | activities = (rootActivity as ActivityPubOrderedCollection).orderedItems | |
59 | } else { | |
60 | activities = [ rootActivity as Activity ] | |
61 | } | |
62 | ||
63 | // Only keep activities we are able to process | |
64 | logger.debug('Filtering activities...', { activities }) | |
65 | activities = activities.filter(a => isActivityValid(a)) | |
66 | logger.debug('We keep %d activities.', activities.length, { activities }) | |
67 | ||
68 | await processActivities(activities, res.locals.account) | |
69 | ||
70 | res.status(204).end() | |
71 | } | |
72 | ||
73 | async function processActivities (activities: Activity[], inboxAccount?: AccountInstance) { | |
74 | for (const activity of activities) { | |
75 | const activityProcessor = processActivity[activity.type] | |
76 | if (activityProcessor === undefined) { | |
77 | logger.warn('Unknown activity type %s.', activity.type, { activityId: activity.id }) | |
78 | continue | |
79 | } | |
80 | ||
81 | await activityProcessor(activity, inboxAccount) | |
82 | } | |
83 | } |