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