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import { map } from 'bluebird'
import { sanitizeAndCheckVideoCommentObject } from '../../helpers/custom-validators/activitypub/video-comments'
import { logger } from '../../helpers/logger'
import { ACTIVITY_PUB, CRAWL_REQUEST_CONCURRENCY } from '../../initializers/constants'
import { VideoCommentModel } from '../../models/video/video-comment'
import { MComment, MCommentOwner, MCommentOwnerVideo, MVideoAccountLightBlacklistAllFiles } from '../../types/models/video'
import { isRemoteVideoCommentAccepted } from '../moderation'
import { Hooks } from '../plugins/hooks'
import { fetchAP } from './activity'
import { getOrCreateAPActor } from './actors'
import { checkUrlsSameHost } from './url'
import { getOrCreateAPVideo } from './videos'
type ResolveThreadParams = {
url: string
comments?: MCommentOwner[]
isVideo?: boolean
commentCreated?: boolean
}
type ResolveThreadResult = Promise<{ video: MVideoAccountLightBlacklistAllFiles, comment: MCommentOwnerVideo, commentCreated: boolean }>
async function addVideoComments (commentUrls: string[]) {
return map(commentUrls, async commentUrl => {
try {
await resolveThread({ url: commentUrl, isVideo: false })
} catch (err) {
logger.warn('Cannot resolve thread %s.', commentUrl, { err })
}
}, { 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 = []
// If it is not a video, or if we don't know if it's a video, try to get the thread from DB
if (isVideo === false || isVideo === undefined) {
const result = await resolveCommentFromDB(params)
if (result) return result
}
try {
// If it is a video, or if we don't know if it's a video
if (isVideo === true || isVideo === undefined) {
// Keep await so we catch the exception
return await tryToResolveThreadFromVideo(params)
}
} catch (err) {
logger.debug('Cannot resolve thread from video %s, maybe because it was not a video', url, { err })
}
return resolveRemoteParentComment(params)
}
export {
addVideoComments,
resolveThread
}
// ---------------------------------------------------------------------------
async function resolveCommentFromDB (params: ResolveThreadParams) {
const { url, comments, commentCreated } = params
const commentFromDatabase = await VideoCommentModel.loadByUrlAndPopulateReplyAndVideoUrlAndAccount(url)
if (!commentFromDatabase) return undefined
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
})
}
async function tryToResolveThreadFromVideo (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 = { rates: true, shares: true, comments: false, refreshVideo: false }
const { video } = await getOrCreateAPVideo({ videoObject: url, syncParam })
if (video.isOwned() && !video.hasPrivacyForFederation()) {
throw new Error('Cannot resolve thread of video with privacy that is not compatible with federation')
}
let resultComment: MCommentOwnerVideo
if (comments.length !== 0) {
const firstReply = comments[comments.length - 1] as MCommentOwnerVideo
firstReply.inReplyToCommentId = null
firstReply.originCommentId = null
firstReply.videoId = video.id
firstReply.changed('updatedAt', true)
firstReply.Video = video
if (await isRemoteCommentAccepted(firstReply) !== true) {
return undefined
}
comments[comments.length - 1] = await firstReply.save()
for (let i = comments.length - 2; i >= 0; i--) {
const comment = comments[i] as MCommentOwnerVideo
comment.originCommentId = firstReply.id
comment.inReplyToCommentId = comments[i + 1].id
comment.videoId = video.id
comment.changed('updatedAt', true)
comment.Video = video
if (await isRemoteCommentAccepted(comment) !== true) {
return undefined
}
comments[i] = await comment.save()
}
resultComment = comments[0] as MCommentOwnerVideo
}
return { video, comment: resultComment, commentCreated }
}
async function resolveRemoteParentComment (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 fetchAP<any>(url)
if (sanitizeAndCheckVideoCommentObject(body) === false) {
throw new Error(`Remote video comment JSON ${url} is not valid:` + JSON.stringify(body))
}
const actorUrl = body.attributedTo
if (!actorUrl && body.type !== 'Tombstone') throw new Error('Miss attributed to in comment')
if (actorUrl && 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 = actorUrl
? await getOrCreateAPActor(actorUrl, 'all')
: null
const comment = new VideoCommentModel({
url: body.id,
text: body.content ? body.content : '',
videoId: null,
accountId: actor ? actor.Account.id : null,
inReplyToCommentId: null,
originCommentId: null,
createdAt: new Date(body.published),
updatedAt: new Date(body.updated),
deletedAt: body.deleted ? new Date(body.deleted) : null
}) as MCommentOwner
comment.Account = actor ? actor.Account : null
return resolveThread({
url: body.inReplyTo,
comments: comments.concat([ comment ]),
commentCreated: true
})
}
async function isRemoteCommentAccepted (comment: MComment) {
// Already created
if (comment.id) return true
const acceptParameters = {
comment
}
const acceptedResult = await Hooks.wrapFun(
isRemoteVideoCommentAccepted,
acceptParameters,
'filter:activity-pub.remote-video-comment.create.accept.result'
)
if (!acceptedResult || acceptedResult.accepted !== true) {
logger.info('Refused to create a remote comment.', { acceptedResult, acceptParameters })
return false
}
return true
}
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