115 lines
3.2 KiB
TypeScript
115 lines
3.2 KiB
TypeScript
import * as Bluebird from 'bluebird'
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import * as validator from 'validator'
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import { ResultList } from '../../shared/models'
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import { Activity, ActivityPubActor } from '../../shared/models/activitypub'
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import { ACTIVITY_PUB } from '../initializers'
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import { ActorModel } from '../models/activitypub/actor'
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import { signObject } from './peertube-crypto'
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import { pageToStartAndCount } from './core-utils'
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function activityPubContextify <T> (data: T) {
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return Object.assign(data, {
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'@context': [
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'https://www.w3.org/ns/activitystreams',
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'https://w3id.org/security/v1',
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{
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RsaSignature2017: 'https://w3id.org/security#RsaSignature2017',
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Hashtag: 'as:Hashtag',
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uuid: 'http://schema.org/identifier',
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category: 'http://schema.org/category',
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licence: 'http://schema.org/license',
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sensitive: 'as:sensitive',
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language: 'http://schema.org/inLanguage',
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views: 'http://schema.org/Number',
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stats: 'http://schema.org/Number',
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size: 'http://schema.org/Number',
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commentsEnabled: 'http://schema.org/Boolean',
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waitTranscoding: 'http://schema.org/Boolean',
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support: 'http://schema.org/Text'
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},
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{
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likes: {
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'@id': 'as:likes',
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'@type': '@id'
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},
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dislikes: {
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'@id': 'as:dislikes',
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'@type': '@id'
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},
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shares: {
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'@id': 'as:shares',
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'@type': '@id'
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},
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comments: {
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'@id': 'as:comments',
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'@type': '@id'
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}
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}
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]
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})
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}
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type ActivityPubCollectionPaginationHandler = (start: number, count: number) => Bluebird<ResultList<any>> | Promise<ResultList<any>>
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async function activityPubCollectionPagination (url: string, handler: ActivityPubCollectionPaginationHandler, page?: any) {
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if (!page || !validator.isInt(page)) {
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// We just display the first page URL, we only need the total items
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const result = await handler(0, 1)
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return {
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id: url,
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type: 'OrderedCollection',
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totalItems: result.total,
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first: url + '?page=1'
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}
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}
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const { start, count } = pageToStartAndCount(page, ACTIVITY_PUB.COLLECTION_ITEMS_PER_PAGE)
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const result = await handler(start, count)
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let next: string
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let prev: string
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// Assert page is a number
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page = parseInt(page, 10)
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// There are more results
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if (result.total > page * ACTIVITY_PUB.COLLECTION_ITEMS_PER_PAGE) {
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next = url + '?page=' + (page + 1)
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}
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if (page > 1) {
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prev = url + '?page=' + (page - 1)
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}
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return {
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id: url + '?page=' + page,
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type: 'OrderedCollectionPage',
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prev,
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next,
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partOf: url,
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orderedItems: result.data,
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totalItems: result.total
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}
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}
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function buildSignedActivity (byActor: ActorModel, data: Object) {
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const activity = activityPubContextify(data)
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return signObject(byActor, activity) as Promise<Activity>
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}
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function getActorUrl (activityActor: string | ActivityPubActor) {
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if (typeof activityActor === 'string') return activityActor
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return activityActor.id
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}
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// ---------------------------------------------------------------------------
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export {
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getActorUrl,
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activityPubContextify,
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activityPubCollectionPagination,
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buildSignedActivity
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}
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