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1 | import * as Bluebird from 'bluebird' | |
2 | import * as validator from 'validator' | |
3 | import { ResultList } from '../../shared/models' | |
4 | import { Activity, ActivityPubActor } from '../../shared/models/activitypub' | |
5 | import { ACTIVITY_PUB } from '../initializers' | |
6 | import { ActorModel } from '../models/activitypub/actor' | |
7 | import { signObject } from './peertube-crypto' | |
8 | import { pageToStartAndCount } from './core-utils' | |
9 | ||
10 | function activityPubContextify <T> (data: T) { | |
11 | return Object.assign(data, { | |
12 | '@context': [ | |
13 | 'https://www.w3.org/ns/activitystreams', | |
14 | 'https://w3id.org/security/v1', | |
15 | { | |
16 | RsaSignature2017: 'https://w3id.org/security#RsaSignature2017', | |
17 | pt: 'https://joinpeertube.org/ns', | |
18 | schema: 'http://schema.org#', | |
19 | Hashtag: 'as:Hashtag', | |
20 | uuid: 'schema:identifier', | |
21 | category: 'schema:category', | |
22 | licence: 'schema:license', | |
23 | subtitleLanguage: 'schema:subtitleLanguage', | |
24 | sensitive: 'as:sensitive', | |
25 | language: 'schema:inLanguage', | |
26 | views: 'schema:Number', | |
27 | stats: 'schema:Number', | |
28 | size: 'schema:Number', | |
29 | fps: 'schema:Number', | |
30 | commentsEnabled: 'schema:Boolean', | |
31 | downloadEnabled: 'schema:Boolean', | |
32 | waitTranscoding: 'schema:Boolean', | |
33 | expires: 'schema:expires', | |
34 | support: 'schema:Text', | |
35 | CacheFile: 'pt:CacheFile' | |
36 | }, | |
37 | { | |
38 | likes: { | |
39 | '@id': 'as:likes', | |
40 | '@type': '@id' | |
41 | }, | |
42 | dislikes: { | |
43 | '@id': 'as:dislikes', | |
44 | '@type': '@id' | |
45 | }, | |
46 | shares: { | |
47 | '@id': 'as:shares', | |
48 | '@type': '@id' | |
49 | }, | |
50 | comments: { | |
51 | '@id': 'as:comments', | |
52 | '@type': '@id' | |
53 | } | |
54 | } | |
55 | ] | |
56 | }) | |
57 | } | |
58 | ||
59 | type ActivityPubCollectionPaginationHandler = (start: number, count: number) => Bluebird<ResultList<any>> | Promise<ResultList<any>> | |
60 | async function activityPubCollectionPagination (url: string, handler: ActivityPubCollectionPaginationHandler, page?: any) { | |
61 | if (!page || !validator.isInt(page)) { | |
62 | // We just display the first page URL, we only need the total items | |
63 | const result = await handler(0, 1) | |
64 | ||
65 | return { | |
66 | id: url, | |
67 | type: 'OrderedCollection', | |
68 | totalItems: result.total, | |
69 | first: url + '?page=1' | |
70 | } | |
71 | } | |
72 | ||
73 | const { start, count } = pageToStartAndCount(page, ACTIVITY_PUB.COLLECTION_ITEMS_PER_PAGE) | |
74 | const result = await handler(start, count) | |
75 | ||
76 | let next: string | undefined | |
77 | let prev: string | undefined | |
78 | ||
79 | // Assert page is a number | |
80 | page = parseInt(page, 10) | |
81 | ||
82 | // There are more results | |
83 | if (result.total > page * ACTIVITY_PUB.COLLECTION_ITEMS_PER_PAGE) { | |
84 | next = url + '?page=' + (page + 1) | |
85 | } | |
86 | ||
87 | if (page > 1) { | |
88 | prev = url + '?page=' + (page - 1) | |
89 | } | |
90 | ||
91 | return { | |
92 | id: url + '?page=' + page, | |
93 | type: 'OrderedCollectionPage', | |
94 | prev, | |
95 | next, | |
96 | partOf: url, | |
97 | orderedItems: result.data, | |
98 | totalItems: result.total | |
99 | } | |
100 | ||
101 | } | |
102 | ||
103 | function buildSignedActivity (byActor: ActorModel, data: Object) { | |
104 | const activity = activityPubContextify(data) | |
105 | ||
106 | return signObject(byActor, activity) as Promise<Activity> | |
107 | } | |
108 | ||
109 | function getActorUrl (activityActor: string | ActivityPubActor) { | |
110 | if (typeof activityActor === 'string') return activityActor | |
111 | ||
112 | return activityActor.id | |
113 | } | |
114 | ||
115 | // --------------------------------------------------------------------------- | |
116 | ||
117 | export { | |
118 | getActorUrl, | |
119 | activityPubContextify, | |
120 | activityPubCollectionPagination, | |
121 | buildSignedActivity | |
122 | } |