import { ContextType } from '@peertube/peertube-models' import { ACTIVITY_PUB } from '@server/initializers/constants.js' import { buildDigest, signJsonLDObject } from './peertube-crypto.js' export type ContextFilter = (arg: T) => Promise export function buildGlobalHTTPHeaders ( body: any, digestBuilder: typeof buildDigest ) { return { 'digest': digestBuilder(body), 'content-type': 'application/activity+json', 'accept': ACTIVITY_PUB.ACCEPT_HEADER } } export async function activityPubContextify (data: T, type: ContextType, contextFilter: ContextFilter) { return { ...await getContextData(type, contextFilter), ...data } } export async function signAndContextify (options: { byActor: { url: string, privateKey: string } data: T contextType: ContextType | null contextFilter: ContextFilter signerFunction: typeof signJsonLDObject }) { const { byActor, data, contextType, contextFilter, signerFunction } = options const activity = contextType ? await activityPubContextify(data, contextType, contextFilter) : data return signerFunction({ byActor, data: activity }) } // --------------------------------------------------------------------------- // Private // --------------------------------------------------------------------------- type ContextValue = { [ id: string ]: (string | { '@type': string, '@id': string }) } const contextStore: { [ id in ContextType ]: (string | { [ id: string ]: string })[] } = { Video: buildContext({ Hashtag: 'as:Hashtag', uuid: 'sc:identifier', category: 'sc:category', licence: 'sc:license', subtitleLanguage: 'sc:subtitleLanguage', sensitive: 'as:sensitive', language: 'sc:inLanguage', identifier: 'sc:identifier', isLiveBroadcast: 'sc:isLiveBroadcast', liveSaveReplay: { '@type': 'sc:Boolean', '@id': 'pt:liveSaveReplay' }, permanentLive: { '@type': 'sc:Boolean', '@id': 'pt:permanentLive' }, latencyMode: { '@type': 'sc:Number', '@id': 'pt:latencyMode' }, Infohash: 'pt:Infohash', tileWidth: { '@type': 'sc:Number', '@id': 'pt:tileWidth' }, tileHeight: { '@type': 'sc:Number', '@id': 'pt:tileHeight' }, tileDuration: { '@type': 'sc:Number', '@id': 'pt:tileDuration' }, originallyPublishedAt: 'sc:datePublished', uploadDate: 'sc:uploadDate', hasParts: 'sc:hasParts', views: { '@type': 'sc:Number', '@id': 'pt:views' }, state: { '@type': 'sc:Number', '@id': 'pt:state' }, size: { '@type': 'sc:Number', '@id': 'pt:size' }, fps: { '@type': 'sc:Number', '@id': 'pt:fps' }, commentsEnabled: { '@type': 'sc:Boolean', '@id': 'pt:commentsEnabled' }, downloadEnabled: { '@type': 'sc:Boolean', '@id': 'pt:downloadEnabled' }, waitTranscoding: { '@type': 'sc:Boolean', '@id': 'pt:waitTranscoding' }, support: { '@type': 'sc:Text', '@id': 'pt:support' }, likes: { '@id': 'as:likes', '@type': '@id' }, dislikes: { '@id': 'as:dislikes', '@type': '@id' }, shares: { '@id': 'as:shares', '@type': '@id' }, comments: { '@id': 'as:comments', '@type': '@id' } }), Playlist: buildContext({ Playlist: 'pt:Playlist', PlaylistElement: 'pt:PlaylistElement', position: { '@type': 'sc:Number', '@id': 'pt:position' }, startTimestamp: { '@type': 'sc:Number', '@id': 'pt:startTimestamp' }, stopTimestamp: { '@type': 'sc:Number', '@id': 'pt:stopTimestamp' }, uuid: 'sc:identifier' }), CacheFile: buildContext({ expires: 'sc:expires', CacheFile: 'pt:CacheFile' }), Flag: buildContext({ Hashtag: 'as:Hashtag' }), Actor: buildContext({ playlists: { '@id': 'pt:playlists', '@type': '@id' }, support: { '@type': 'sc:Text', '@id': 'pt:support' }, // TODO: remove in a few versions, introduced in 4.2 icons: 'as:icon' }), WatchAction: buildContext({ WatchAction: 'sc:WatchAction', startTimestamp: { '@type': 'sc:Number', '@id': 'pt:startTimestamp' }, stopTimestamp: { '@type': 'sc:Number', '@id': 'pt:stopTimestamp' }, watchSection: { '@type': 'sc:Number', '@id': 'pt:stopTimestamp' }, uuid: 'sc:identifier' }), Collection: buildContext(), Follow: buildContext(), Reject: buildContext(), Accept: buildContext(), View: buildContext(), Announce: buildContext(), Comment: buildContext(), Delete: buildContext(), Rate: buildContext(), Chapters: buildContext({ name: 'sc:name', hasPart: 'sc:hasPart', endOffset: 'sc:endOffset', startOffset: 'sc:startOffset' }) } async function getContextData (type: ContextType, contextFilter: ContextFilter) { const contextData = contextFilter ? await contextFilter(contextStore[type]) : contextStore[type] return { '@context': contextData } } function buildContext (contextValue?: ContextValue) { const baseContext = [ 'https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1', { RsaSignature2017: 'https://w3id.org/security#RsaSignature2017' } ] if (!contextValue) return baseContext return [ ...baseContext, { pt: 'https://joinpeertube.org/ns#', sc: 'http://schema.org/', ...contextValue } ] }