1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
import { VideoCommentObject } from '../../../shared/models/activitypub/objects/video-comment-object'
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 { ActorModel } from '../../models/activitypub/actor'
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'
async function videoCommentActivityObjectToDBAttributes (video: VideoModel, actor: ActorModel, comment: VideoCommentObject) {
let originCommentId: number = null
let inReplyToCommentId: number = null
// If this is not a reply to the video (thread), create or get the parent comment
if (video.url !== comment.inReplyTo) {
const { comment: parent } = await addVideoComment(video, comment.inReplyTo)
if (!parent) {
logger.warn('Cannot fetch or get parent comment %s of comment %s.', comment.inReplyTo, comment.id)
return undefined
}
originCommentId = parent.originCommentId || parent.id
inReplyToCommentId = parent.id
}
return {
url: comment.id,
text: comment.content,
videoId: video.id,
accountId: actor.Account.id,
inReplyToCommentId,
originCommentId,
createdAt: new Date(comment.published)
}
}
async function addVideoComments (commentUrls: string[], instance: VideoModel) {
return Bluebird.map(commentUrls, commentUrl => {
return addVideoComment(instance, commentUrl)
}, { concurrency: CRAWL_REQUEST_CONCURRENCY })
}
async function addVideoComment (videoInstance: VideoModel, commentUrl: string) {
logger.info('Fetching remote video comment %s.', commentUrl)
const { body } = await doRequest({
uri: commentUrl,
json: true,
activityPub: true
})
if (sanitizeAndCheckVideoCommentObject(body) === false) {
logger.debug('Remote video comment JSON %s is not valid.', commentUrl, { body })
return { created: false }
}
const actorUrl = body.attributedTo
if (!actorUrl) return { created: false }
if (checkUrlsSameHost(commentUrl, actorUrl) !== true) {
throw new Error(`Actor url ${actorUrl} has not the same host than the comment url ${commentUrl}`)
}
if (checkUrlsSameHost(body.id, commentUrl) !== true) {
throw new Error(`Comment url ${commentUrl} host is different from the AP object id ${body.id}`)
}
const actor = await getOrCreateActorAndServerAndModel(actorUrl, 'all')
const entry = await videoCommentActivityObjectToDBAttributes(videoInstance, actor, body)
if (!entry) return { created: false }
const [ comment, created ] = await VideoCommentModel.upsert<VideoCommentModel>(entry, { returning: true })
comment.Account = actor.Account
comment.Video = videoInstance
return { comment, created }
}
type ResolveThreadResult = Promise<{ video: VideoModel, parents: VideoCommentModel[] }>
async function resolveThread (url: string, comments: VideoCommentModel[] = []): ResolveThreadResult {
// Already have this comment?
const commentFromDatabase = await VideoCommentModel.loadByUrlAndPopulateReplyAndVideo(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(commentFromDatabase.Video.url, parentComments)
}
try {
// Maybe it's a reply to a video?
// If yes, it's done: we resolved all the thread
const { video } = await getOrCreateVideoAndAccountAndChannel({ videoObject: url })
if (comments.length !== 0) {
const firstReply = comments[ comments.length - 1 ]
firstReply.inReplyToCommentId = null
firstReply.originCommentId = null
firstReply.videoId = video.id
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
comments[i] = await comment.save()
}
}
return { video, parents: comments }
} catch (err) {
logger.debug('Cannot get or create account and video and channel for reply %s, fetch comment', url, { err })
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)
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)
})
return resolveThread(body.inReplyTo, comments.concat([ comment ]))
}
}
export {
videoCommentActivityObjectToDBAttributes,
addVideoComments,
addVideoComment,
resolveThread
}
|
