import { sanitizeAndCheckVideoCommentObject } from '../../helpers/custom-validators/activitypub/video-comments' import { logger } from '../../helpers/logger' import { doRequest } from '../../helpers/requests' import { ACTIVITY_PUB, CRAWL_REQUEST_CONCURRENCY } from '../../initializers/constants' import { VideoModel } from '../../models/video/video' import { VideoCommentModel } from '../../models/video/video-comment' import { getOrCreateActorAndServerAndModel } from './actor' import { getOrCreateVideoAndAccountAndChannel } from './videos' import * as Bluebird from 'bluebird' import { checkUrlsSameHost } from '../../helpers/activitypub' type ResolveThreadParams = { url: string, comments?: VideoCommentModel[], isVideo?: boolean, commentCreated?: boolean } type ResolveThreadResult = Promise<{ video: VideoModel, comment: VideoCommentModel, commentCreated: boolean }> async function addVideoComments (commentUrls: string[]) { return Bluebird.map(commentUrls, commentUrl => { return resolveThread({ url: commentUrl, isVideo: false }) }, { concurrency: CRAWL_REQUEST_CONCURRENCY }) } async function resolveThread (params: ResolveThreadParams): ResolveThreadResult { const { url, isVideo } = params if (params.commentCreated === undefined) params.commentCreated = false if (params.comments === undefined) params.comments = [] // Already have this comment? if (isVideo !== true) { const result = await resolveCommentFromDB(params) if (result) return result } try { if (isVideo !== false) return await tryResolveThreadFromVideo(params) return resolveParentComment(params) } catch (err) { logger.debug('Cannot get or create account and video and channel for reply %s, fetch comment', url, { err }) return resolveParentComment(params) } } export { addVideoComments, resolveThread } // --------------------------------------------------------------------------- async function resolveCommentFromDB (params: ResolveThreadParams) { const { url, comments, commentCreated } = params const commentFromDatabase = await VideoCommentModel.loadByUrlAndPopulateReplyAndVideoUrlAndAccount(url) if (commentFromDatabase) { let parentComments = comments.concat([ commentFromDatabase ]) // Speed up things and resolve directly the thread if (commentFromDatabase.InReplyToVideoComment) { const data = await VideoCommentModel.listThreadParentComments(commentFromDatabase, undefined, 'DESC') parentComments = parentComments.concat(data) } return resolveThread({ url: commentFromDatabase.Video.url, comments: parentComments, isVideo: true, commentCreated }) } return undefined } async function tryResolveThreadFromVideo (params: ResolveThreadParams) { const { url, comments, commentCreated } = params // Maybe it's a reply to a video? // If yes, it's done: we resolved all the thread const syncParam = { likes: true, dislikes: true, shares: true, comments: false, thumbnail: true, refreshVideo: false } const { video } = await getOrCreateVideoAndAccountAndChannel({ videoObject: url, syncParam }) let resultComment: VideoCommentModel if (comments.length !== 0) { const firstReply = comments[ comments.length - 1 ] firstReply.inReplyToCommentId = null firstReply.originCommentId = null firstReply.videoId = video.id firstReply.changed('updatedAt', true) firstReply.Video = video comments[comments.length - 1] = await firstReply.save() for (let i = comments.length - 2; i >= 0; i--) { const comment = comments[ i ] comment.originCommentId = firstReply.id comment.inReplyToCommentId = comments[ i + 1 ].id comment.videoId = video.id comment.changed('updatedAt', true) comment.Video = video comments[i] = await comment.save() } resultComment = comments[0] } return { video, comment: resultComment, commentCreated } } async function resolveParentComment (params: ResolveThreadParams) { const { url, comments } = params if (comments.length > ACTIVITY_PUB.MAX_RECURSION_COMMENTS) { throw new Error('Recursion limit reached when resolving a thread') } const { body } = await doRequest({ uri: url, json: true, activityPub: true }) if (sanitizeAndCheckVideoCommentObject(body) === false) { throw new Error('Remote video comment JSON is not valid:' + JSON.stringify(body)) } const actorUrl = body.attributedTo if (!actorUrl) throw new Error('Miss attributed to in comment') if (checkUrlsSameHost(url, actorUrl) !== true) { throw new Error(`Actor url ${actorUrl} has not the same host than the comment url ${url}`) } if (checkUrlsSameHost(body.id, url) !== true) { throw new Error(`Comment url ${url} host is different from the AP object id ${body.id}`) } const actor = await getOrCreateActorAndServerAndModel(actorUrl, 'all') const comment = new VideoCommentModel({ url: body.id, text: body.content, videoId: null, accountId: actor.Account.id, inReplyToCommentId: null, originCommentId: null, createdAt: new Date(body.published), updatedAt: new Date(body.updated) }) comment.Account = actor.Account return resolveThread({ url: body.inReplyTo, comments: comments.concat([ comment ]), commentCreated: true }) }