mirror of https://github.com/Chocobozzz/PeerTube
				
				
				
			
		
			
				
	
	
		
			122 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			TypeScript
		
	
	
			
		
		
	
	
			122 lines
		
	
	
		
			3.3 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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        pt: 'https://joinpeertube.org/ns',
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        schema: 'http://schema.org#',
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        Hashtag: 'as:Hashtag',
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        uuid: 'schema:identifier',
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        category: 'schema:category',
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        licence: 'schema:license',
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        subtitleLanguage: 'schema:subtitleLanguage',
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        sensitive: 'as:sensitive',
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        language: 'schema:inLanguage',
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        views: 'schema:Number',
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        stats: 'schema:Number',
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        size: 'schema:Number',
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        fps: 'schema:Number',
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        commentsEnabled: 'schema:Boolean',
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        waitTranscoding: 'schema:Boolean',
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        expires: 'schema:expires',
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        support: 'schema:Text',
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        CacheFile: 'pt:CacheFile'
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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 | undefined
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  let prev: string | undefined
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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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