server/lib/notifier.ts

   1 import { AbuseMessageModel } from '@server/models/abuse/abuse-message'
   2 import { getServerActor } from '@server/models/application/application'
   3 import { ServerBlocklistModel } from '@server/models/server/server-blocklist'
   4 import {
   5   MUser,
   6   MUserAccount,
   7   MUserDefault,
   8   MUserNotifSettingAccount,
   9   MUserWithNotificationSetting,
  10   UserNotificationModelForApi
  11 } from '@server/types/models/user'
  12 import { MVideoBlacklistLightVideo, MVideoBlacklistVideo } from '@server/types/models/video/video-blacklist'
  13 import { MVideoImportVideo } from '@server/types/models/video/video-import'
  14 import { UserAbuse } from '@shared/models'
  15 import { UserNotificationSettingValue, UserNotificationType, UserRight } from '../../shared/models/users'
  16 import { VideoPrivacy, VideoState } from '../../shared/models/videos'
  17 import { logger } from '../helpers/logger'
  18 import { CONFIG } from '../initializers/config'
  19 import { AccountBlocklistModel } from '../models/account/account-blocklist'
  20 import { UserModel } from '../models/account/user'
  21 import { UserNotificationModel } from '../models/account/user-notification'
  22 import { MAbuseFull, MAbuseMessage, MAccountServer, MActorFollowFull } from '../types/models'
  23 import { MCommentOwnerVideo, MVideoAccountLight, MVideoFullLight } from '../types/models/video'
  24 import { isBlockedByServerOrAccount } from './blocklist'
  25 import { Emailer } from './emailer'
  26 import { PeerTubeSocket } from './peertube-socket'
  27 import { AccountModel } from '@server/models/account/account'
  28
  29 class Notifier {
  30
  31   private static instance: Notifier
  32
  33   private constructor () {
  34   }
  35
  36   notifyOnNewVideoIfNeeded (video: MVideoAccountLight): void {
  37     // Only notify on public and published videos which are not blacklisted
  38     if (video.privacy !== VideoPrivacy.PUBLIC || video.state !== VideoState.PUBLISHED || video.isBlacklisted()) return
  39
  40     this.notifySubscribersOfNewVideo(video)
  41         .catch(err => logger.error('Cannot notify subscribers of new video %s.', video.url, { err }))
  42   }
  43
  44   notifyOnVideoPublishedAfterTranscoding (video: MVideoFullLight): void {
  45     // don't notify if didn't wait for transcoding or video is still blacklisted/waiting for scheduled update
  46     if (!video.waitTranscoding || video.VideoBlacklist || video.ScheduleVideoUpdate) return
  47
  48     this.notifyOwnedVideoHasBeenPublished(video)
  49         .catch(err => logger.error('Cannot notify owner that its video %s has been published after transcoding.', video.url, { err }))
  50   }
  51
  52   notifyOnVideoPublishedAfterScheduledUpdate (video: MVideoFullLight): void {
  53     // don't notify if video is still blacklisted or waiting for transcoding
  54     if (video.VideoBlacklist || (video.waitTranscoding && video.state !== VideoState.PUBLISHED)) return
  55
  56     this.notifyOwnedVideoHasBeenPublished(video)
  57         .catch(err => logger.error('Cannot notify owner that its video %s has been published after scheduled update.', video.url, { err }))
  58   }
  59
  60   notifyOnVideoPublishedAfterRemovedFromAutoBlacklist (video: MVideoFullLight): void {
  61     // don't notify if video is still waiting for transcoding or scheduled update
  62     if (video.ScheduleVideoUpdate || (video.waitTranscoding && video.state !== VideoState.PUBLISHED)) return
  63
  64     this.notifyOwnedVideoHasBeenPublished(video)
  65         .catch(err => {
  66           logger.error('Cannot notify owner that its video %s has been published after removed from auto-blacklist.', video.url, { err })
  67         })
  68   }
  69
  70   notifyOnNewComment (comment: MCommentOwnerVideo): void {
  71     this.notifyVideoOwnerOfNewComment(comment)
  72         .catch(err => logger.error('Cannot notify video owner of new comment %s.', comment.url, { err }))
  73
  74     this.notifyOfCommentMention(comment)
  75         .catch(err => logger.error('Cannot notify mentions of comment %s.', comment.url, { err }))
  76   }
  77
  78   notifyOnNewAbuse (parameters: { abuse: UserAbuse, abuseInstance: MAbuseFull, reporter: string }): void {
  79     this.notifyModeratorsOfNewAbuse(parameters)
  80         .catch(err => logger.error('Cannot notify of new abuse %d.', parameters.abuseInstance.id, { err }))
  81   }
  82
  83   notifyOnVideoAutoBlacklist (videoBlacklist: MVideoBlacklistLightVideo): void {
  84     this.notifyModeratorsOfVideoAutoBlacklist(videoBlacklist)
  85         .catch(err => logger.error('Cannot notify of auto-blacklist of video %s.', videoBlacklist.Video.url, { err }))
  86   }
  87
  88   notifyOnVideoBlacklist (videoBlacklist: MVideoBlacklistVideo): void {
  89     this.notifyVideoOwnerOfBlacklist(videoBlacklist)
  90         .catch(err => logger.error('Cannot notify video owner of new video blacklist of %s.', videoBlacklist.Video.url, { err }))
  91   }
  92
  93   notifyOnVideoUnblacklist (video: MVideoFullLight): void {
  94     this.notifyVideoOwnerOfUnblacklist(video)
  95         .catch(err => logger.error('Cannot notify video owner of unblacklist of %s.', video.url, { err }))
  96   }
  97
  98   notifyOnFinishedVideoImport (videoImport: MVideoImportVideo, success: boolean): void {
  99     this.notifyOwnerVideoImportIsFinished(videoImport, success)
 100         .catch(err => logger.error('Cannot notify owner that its video import %s is finished.', videoImport.getTargetIdentifier(), { err }))
 101   }
 102
 103   notifyOnNewUserRegistration (user: MUserDefault): void {
 104     this.notifyModeratorsOfNewUserRegistration(user)
 105         .catch(err => logger.error('Cannot notify moderators of new user registration (%s).', user.username, { err }))
 106   }
 107
 108   notifyOfNewUserFollow (actorFollow: MActorFollowFull): void {
 109     this.notifyUserOfNewActorFollow(actorFollow)
 110         .catch(err => {
 111           logger.error(
 112             'Cannot notify owner of channel %s of a new follow by %s.',
 113             actorFollow.ActorFollowing.VideoChannel.getDisplayName(),
 114             actorFollow.ActorFollower.Account.getDisplayName(),
 115             { err }
 116           )
 117         })
 118   }
 119
 120   notifyOfNewInstanceFollow (actorFollow: MActorFollowFull): void {
 121     this.notifyAdminsOfNewInstanceFollow(actorFollow)
 122         .catch(err => {
 123           logger.error('Cannot notify administrators of new follower %s.', actorFollow.ActorFollower.url, { err })
 124         })
 125   }
 126
 127   notifyOfAutoInstanceFollowing (actorFollow: MActorFollowFull): void {
 128     this.notifyAdminsOfAutoInstanceFollowing(actorFollow)
 129         .catch(err => {
 130           logger.error('Cannot notify administrators of auto instance following %s.', actorFollow.ActorFollowing.url, { err })
 131         })
 132   }
 133
 134   notifyOnAbuseStateChange (abuse: MAbuseFull): void {
 135     this.notifyReporterOfAbuseStateChange(abuse)
 136       .catch(err => {
 137         logger.error('Cannot notify reporter of abuse %d state change.', abuse.id, { err })
 138       })
 139   }
 140
 141   notifyOnAbuseMessage (abuse: MAbuseFull, message: MAbuseMessage): void {
 142     this.notifyOfNewAbuseMessage(abuse, message)
 143       .catch(err => {
 144         logger.error('Cannot notify on new abuse %d message.', abuse.id, { err })
 145       })
 146   }
 147
 148   private async notifySubscribersOfNewVideo (video: MVideoAccountLight) {
 149     // List all followers that are users
 150     const users = await UserModel.listUserSubscribersOf(video.VideoChannel.actorId)
 151
 152     logger.info('Notifying %d users of new video %s.', users.length, video.url)
 153
 154     function settingGetter (user: MUserWithNotificationSetting) {
 155       return user.NotificationSetting.newVideoFromSubscription
 156     }
 157
 158     async function notificationCreator (user: MUserWithNotificationSetting) {
 159       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 160         type: UserNotificationType.NEW_VIDEO_FROM_SUBSCRIPTION,
 161         userId: user.id,
 162         videoId: video.id
 163       })
 164       notification.Video = video
 165
 166       return notification
 167     }
 168
 169     function emailSender (emails: string[]) {
 170       return Emailer.Instance.addNewVideoFromSubscriberNotification(emails, video)
 171     }
 172
 173     return this.notify({ users, settingGetter, notificationCreator, emailSender })
 174   }
 175
 176   private async notifyVideoOwnerOfNewComment (comment: MCommentOwnerVideo) {
 177     if (comment.Video.isOwned() === false) return
 178
 179     const user = await UserModel.loadByVideoId(comment.videoId)
 180
 181     // Not our user or user comments its own video
 182     if (!user || comment.Account.userId === user.id) return
 183
 184     if (await this.isBlockedByServerOrUser(comment.Account, user)) return
 185
 186     logger.info('Notifying user %s of new comment %s.', user.username, comment.url)
 187
 188     function settingGetter (user: MUserWithNotificationSetting) {
 189       return user.NotificationSetting.newCommentOnMyVideo
 190     }
 191
 192     async function notificationCreator (user: MUserWithNotificationSetting) {
 193       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 194         type: UserNotificationType.NEW_COMMENT_ON_MY_VIDEO,
 195         userId: user.id,
 196         commentId: comment.id
 197       })
 198       notification.Comment = comment
 199
 200       return notification
 201     }
 202
 203     function emailSender (emails: string[]) {
 204       return Emailer.Instance.addNewCommentOnMyVideoNotification(emails, comment)
 205     }
 206
 207     return this.notify({ users: [ user ], settingGetter, notificationCreator, emailSender })
 208   }
 209
 210   private async notifyOfCommentMention (comment: MCommentOwnerVideo) {
 211     const extractedUsernames = comment.extractMentions()
 212     logger.debug(
 213       'Extracted %d username from comment %s.', extractedUsernames.length, comment.url,
 214       { usernames: extractedUsernames, text: comment.text }
 215     )
 216
 217     let users = await UserModel.listByUsernames(extractedUsernames)
 218
 219     if (comment.Video.isOwned()) {
 220       const userException = await UserModel.loadByVideoId(comment.videoId)
 221       users = users.filter(u => u.id !== userException.id)
 222     }
 223
 224     // Don't notify if I mentioned myself
 225     users = users.filter(u => u.Account.id !== comment.accountId)
 226
 227     if (users.length === 0) return
 228
 229     const serverAccountId = (await getServerActor()).Account.id
 230     const sourceAccounts = users.map(u => u.Account.id).concat([ serverAccountId ])
 231
 232     const accountMutedHash = await AccountBlocklistModel.isAccountMutedByMulti(sourceAccounts, comment.accountId)
 233     const instanceMutedHash = await ServerBlocklistModel.isServerMutedByMulti(sourceAccounts, comment.Account.Actor.serverId)
 234
 235     logger.info('Notifying %d users of new comment %s.', users.length, comment.url)
 236
 237     function settingGetter (user: MUserNotifSettingAccount) {
 238       const accountId = user.Account.id
 239       if (
 240         accountMutedHash[accountId] === true || instanceMutedHash[accountId] === true ||
 241         accountMutedHash[serverAccountId] === true || instanceMutedHash[serverAccountId] === true
 242       ) {
 243         return UserNotificationSettingValue.NONE
 244       }
 245
 246       return user.NotificationSetting.commentMention
 247     }
 248
 249     async function notificationCreator (user: MUserNotifSettingAccount) {
 250       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 251         type: UserNotificationType.COMMENT_MENTION,
 252         userId: user.id,
 253         commentId: comment.id
 254       })
 255       notification.Comment = comment
 256
 257       return notification
 258     }
 259
 260     function emailSender (emails: string[]) {
 261       return Emailer.Instance.addNewCommentMentionNotification(emails, comment)
 262     }
 263
 264     return this.notify({ users, settingGetter, notificationCreator, emailSender })
 265   }
 266
 267   private async notifyUserOfNewActorFollow (actorFollow: MActorFollowFull) {
 268     if (actorFollow.ActorFollowing.isOwned() === false) return
 269
 270     // Account follows one of our account?
 271     let followType: 'account' | 'channel' = 'channel'
 272     let user = await UserModel.loadByChannelActorId(actorFollow.ActorFollowing.id)
 273
 274     // Account follows one of our channel?
 275     if (!user) {
 276       user = await UserModel.loadByAccountActorId(actorFollow.ActorFollowing.id)
 277       followType = 'account'
 278     }
 279
 280     if (!user) return
 281
 282     const followerAccount = actorFollow.ActorFollower.Account
 283     const followerAccountWithActor = Object.assign(followerAccount, { Actor: actorFollow.ActorFollower })
 284
 285     if (await this.isBlockedByServerOrUser(followerAccountWithActor, user)) return
 286
 287     logger.info('Notifying user %s of new follower: %s.', user.username, followerAccount.getDisplayName())
 288
 289     function settingGetter (user: MUserWithNotificationSetting) {
 290       return user.NotificationSetting.newFollow
 291     }
 292
 293     async function notificationCreator (user: MUserWithNotificationSetting) {
 294       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 295         type: UserNotificationType.NEW_FOLLOW,
 296         userId: user.id,
 297         actorFollowId: actorFollow.id
 298       })
 299       notification.ActorFollow = actorFollow
 300
 301       return notification
 302     }
 303
 304     function emailSender (emails: string[]) {
 305       return Emailer.Instance.addNewFollowNotification(emails, actorFollow, followType)
 306     }
 307
 308     return this.notify({ users: [ user ], settingGetter, notificationCreator, emailSender })
 309   }
 310
 311   private async notifyAdminsOfNewInstanceFollow (actorFollow: MActorFollowFull) {
 312     const admins = await UserModel.listWithRight(UserRight.MANAGE_SERVER_FOLLOW)
 313
 314     const follower = Object.assign(actorFollow.ActorFollower.Account, { Actor: actorFollow.ActorFollower })
 315     if (await this.isBlockedByServerOrUser(follower)) return
 316
 317     logger.info('Notifying %d administrators of new instance follower: %s.', admins.length, actorFollow.ActorFollower.url)
 318
 319     function settingGetter (user: MUserWithNotificationSetting) {
 320       return user.NotificationSetting.newInstanceFollower
 321     }
 322
 323     async function notificationCreator (user: MUserWithNotificationSetting) {
 324       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 325         type: UserNotificationType.NEW_INSTANCE_FOLLOWER,
 326         userId: user.id,
 327         actorFollowId: actorFollow.id
 328       })
 329       notification.ActorFollow = actorFollow
 330
 331       return notification
 332     }
 333
 334     function emailSender (emails: string[]) {
 335       return Emailer.Instance.addNewInstanceFollowerNotification(emails, actorFollow)
 336     }
 337
 338     return this.notify({ users: admins, settingGetter, notificationCreator, emailSender })
 339   }
 340
 341   private async notifyAdminsOfAutoInstanceFollowing (actorFollow: MActorFollowFull) {
 342     const admins = await UserModel.listWithRight(UserRight.MANAGE_SERVER_FOLLOW)
 343
 344     logger.info('Notifying %d administrators of auto instance following: %s.', admins.length, actorFollow.ActorFollowing.url)
 345
 346     function settingGetter (user: MUserWithNotificationSetting) {
 347       return user.NotificationSetting.autoInstanceFollowing
 348     }
 349
 350     async function notificationCreator (user: MUserWithNotificationSetting) {
 351       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 352         type: UserNotificationType.AUTO_INSTANCE_FOLLOWING,
 353         userId: user.id,
 354         actorFollowId: actorFollow.id
 355       })
 356       notification.ActorFollow = actorFollow
 357
 358       return notification
 359     }
 360
 361     function emailSender (emails: string[]) {
 362       return Emailer.Instance.addAutoInstanceFollowingNotification(emails, actorFollow)
 363     }
 364
 365     return this.notify({ users: admins, settingGetter, notificationCreator, emailSender })
 366   }
 367
 368   private async notifyModeratorsOfNewAbuse (parameters: {
 369     abuse: UserAbuse
 370     abuseInstance: MAbuseFull
 371     reporter: string
 372   }) {
 373     const { abuse, abuseInstance } = parameters
 374
 375     const moderators = await UserModel.listWithRight(UserRight.MANAGE_ABUSES)
 376     if (moderators.length === 0) return
 377
 378     const url = this.getAbuseUrl(abuseInstance)
 379
 380     logger.info('Notifying %s user/moderators of new abuse %s.', moderators.length, url)
 381
 382     function settingGetter (user: MUserWithNotificationSetting) {
 383       return user.NotificationSetting.abuseAsModerator
 384     }
 385
 386     async function notificationCreator (user: MUserWithNotificationSetting) {
 387       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 388         type: UserNotificationType.NEW_ABUSE_FOR_MODERATORS,
 389         userId: user.id,
 390         abuseId: abuse.id
 391       })
 392       notification.Abuse = abuseInstance
 393
 394       return notification
 395     }
 396
 397     function emailSender (emails: string[]) {
 398       return Emailer.Instance.addAbuseModeratorsNotification(emails, parameters)
 399     }
 400
 401     return this.notify({ users: moderators, settingGetter, notificationCreator, emailSender })
 402   }
 403
 404   private async notifyReporterOfAbuseStateChange (abuse: MAbuseFull) {
 405     // Only notify our users
 406     if (abuse.ReporterAccount.isOwned() !== true) return
 407
 408     const url = this.getAbuseUrl(abuse)
 409
 410     logger.info('Notifying reporter of abuse % of state change.', url)
 411
 412     const reporter = await UserModel.loadByAccountActorId(abuse.ReporterAccount.actorId)
 413
 414     function settingGetter (user: MUserWithNotificationSetting) {
 415       return user.NotificationSetting.abuseStateChange
 416     }
 417
 418     async function notificationCreator (user: MUserWithNotificationSetting) {
 419       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 420         type: UserNotificationType.ABUSE_STATE_CHANGE,
 421         userId: user.id,
 422         abuseId: abuse.id
 423       })
 424       notification.Abuse = abuse
 425
 426       return notification
 427     }
 428
 429     function emailSender (emails: string[]) {
 430       return Emailer.Instance.addAbuseStateChangeNotification(emails, abuse)
 431     }
 432
 433     return this.notify({ users: [ reporter ], settingGetter, notificationCreator, emailSender })
 434   }
 435
 436   private async notifyOfNewAbuseMessage (abuse: MAbuseFull, message: MAbuseMessage) {
 437     const url = this.getAbuseUrl(abuse)
 438     logger.info('Notifying reporter and moderators of new abuse message on %s.', url)
 439
 440     const accountMessage = await AccountModel.load(message.accountId)
 441
 442     function settingGetter (user: MUserWithNotificationSetting) {
 443       return user.NotificationSetting.abuseNewMessage
 444     }
 445
 446     async function notificationCreator (user: MUserWithNotificationSetting) {
 447       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 448         type: UserNotificationType.ABUSE_NEW_MESSAGE,
 449         userId: user.id,
 450         abuseId: abuse.id
 451       })
 452       notification.Abuse = abuse
 453
 454       return notification
 455     }
 456
 457     function emailSenderReporter (emails: string[]) {
 458       return Emailer.Instance.addAbuseNewMessageNotification(emails, { target: 'reporter', abuse, message, accountMessage })
 459     }
 460
 461     function emailSenderModerators (emails: string[]) {
 462       return Emailer.Instance.addAbuseNewMessageNotification(emails, { target: 'moderator', abuse, message, accountMessage })
 463     }
 464
 465     async function buildReporterOptions () {
 466       // Only notify our users
 467       if (abuse.ReporterAccount.isOwned() !== true) return
 468
 469       const reporter = await UserModel.loadByAccountActorId(abuse.ReporterAccount.actorId)
 470       // Don't notify my own message
 471       if (reporter.Account.id === message.accountId) return
 472
 473       return { users: [ reporter ], settingGetter, notificationCreator, emailSender: emailSenderReporter }
 474     }
 475
 476     async function buildModeratorsOptions () {
 477       let moderators = await UserModel.listWithRight(UserRight.MANAGE_ABUSES)
 478       // Don't notify my own message
 479       moderators = moderators.filter(m => m.Account.id !== message.accountId)
 480
 481       if (moderators.length === 0) return
 482
 483       return { users: moderators, settingGetter, notificationCreator, emailSender: emailSenderModerators }
 484     }
 485
 486     const [ reporterOptions, moderatorsOptions ] = await Promise.all([
 487       buildReporterOptions(),
 488       buildModeratorsOptions()
 489     ])
 490
 491     return Promise.all([
 492       this.notify(reporterOptions),
 493       this.notify(moderatorsOptions)
 494     ])
 495   }
 496
 497   private async notifyModeratorsOfVideoAutoBlacklist (videoBlacklist: MVideoBlacklistLightVideo) {
 498     const moderators = await UserModel.listWithRight(UserRight.MANAGE_VIDEO_BLACKLIST)
 499     if (moderators.length === 0) return
 500
 501     logger.info('Notifying %s moderators of video auto-blacklist %s.', moderators.length, videoBlacklist.Video.url)
 502
 503     function settingGetter (user: MUserWithNotificationSetting) {
 504       return user.NotificationSetting.videoAutoBlacklistAsModerator
 505     }
 506
 507     async function notificationCreator (user: MUserWithNotificationSetting) {
 508       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 509         type: UserNotificationType.VIDEO_AUTO_BLACKLIST_FOR_MODERATORS,
 510         userId: user.id,
 511         videoBlacklistId: videoBlacklist.id
 512       })
 513       notification.VideoBlacklist = videoBlacklist
 514
 515       return notification
 516     }
 517
 518     function emailSender (emails: string[]) {
 519       return Emailer.Instance.addVideoAutoBlacklistModeratorsNotification(emails, videoBlacklist)
 520     }
 521
 522     return this.notify({ users: moderators, settingGetter, notificationCreator, emailSender })
 523   }
 524
 525   private async notifyVideoOwnerOfBlacklist (videoBlacklist: MVideoBlacklistVideo) {
 526     const user = await UserModel.loadByVideoId(videoBlacklist.videoId)
 527     if (!user) return
 528
 529     logger.info('Notifying user %s that its video %s has been blacklisted.', user.username, videoBlacklist.Video.url)
 530
 531     function settingGetter (user: MUserWithNotificationSetting) {
 532       return user.NotificationSetting.blacklistOnMyVideo
 533     }
 534
 535     async function notificationCreator (user: MUserWithNotificationSetting) {
 536       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 537         type: UserNotificationType.BLACKLIST_ON_MY_VIDEO,
 538         userId: user.id,
 539         videoBlacklistId: videoBlacklist.id
 540       })
 541       notification.VideoBlacklist = videoBlacklist
 542
 543       return notification
 544     }
 545
 546     function emailSender (emails: string[]) {
 547       return Emailer.Instance.addVideoBlacklistNotification(emails, videoBlacklist)
 548     }
 549
 550     return this.notify({ users: [ user ], settingGetter, notificationCreator, emailSender })
 551   }
 552
 553   private async notifyVideoOwnerOfUnblacklist (video: MVideoFullLight) {
 554     const user = await UserModel.loadByVideoId(video.id)
 555     if (!user) return
 556
 557     logger.info('Notifying user %s that its video %s has been unblacklisted.', user.username, video.url)
 558
 559     function settingGetter (user: MUserWithNotificationSetting) {
 560       return user.NotificationSetting.blacklistOnMyVideo
 561     }
 562
 563     async function notificationCreator (user: MUserWithNotificationSetting) {
 564       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 565         type: UserNotificationType.UNBLACKLIST_ON_MY_VIDEO,
 566         userId: user.id,
 567         videoId: video.id
 568       })
 569       notification.Video = video
 570
 571       return notification
 572     }
 573
 574     function emailSender (emails: string[]) {
 575       return Emailer.Instance.addVideoUnblacklistNotification(emails, video)
 576     }
 577
 578     return this.notify({ users: [ user ], settingGetter, notificationCreator, emailSender })
 579   }
 580
 581   private async notifyOwnedVideoHasBeenPublished (video: MVideoFullLight) {
 582     const user = await UserModel.loadByVideoId(video.id)
 583     if (!user) return
 584
 585     logger.info('Notifying user %s of the publication of its video %s.', user.username, video.url)
 586
 587     function settingGetter (user: MUserWithNotificationSetting) {
 588       return user.NotificationSetting.myVideoPublished
 589     }
 590
 591     async function notificationCreator (user: MUserWithNotificationSetting) {
 592       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 593         type: UserNotificationType.MY_VIDEO_PUBLISHED,
 594         userId: user.id,
 595         videoId: video.id
 596       })
 597       notification.Video = video
 598
 599       return notification
 600     }
 601
 602     function emailSender (emails: string[]) {
 603       return Emailer.Instance.myVideoPublishedNotification(emails, video)
 604     }
 605
 606     return this.notify({ users: [ user ], settingGetter, notificationCreator, emailSender })
 607   }
 608
 609   private async notifyOwnerVideoImportIsFinished (videoImport: MVideoImportVideo, success: boolean) {
 610     const user = await UserModel.loadByVideoImportId(videoImport.id)
 611     if (!user) return
 612
 613     logger.info('Notifying user %s its video import %s is finished.', user.username, videoImport.getTargetIdentifier())
 614
 615     function settingGetter (user: MUserWithNotificationSetting) {
 616       return user.NotificationSetting.myVideoImportFinished
 617     }
 618
 619     async function notificationCreator (user: MUserWithNotificationSetting) {
 620       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 621         type: success ? UserNotificationType.MY_VIDEO_IMPORT_SUCCESS : UserNotificationType.MY_VIDEO_IMPORT_ERROR,
 622         userId: user.id,
 623         videoImportId: videoImport.id
 624       })
 625       notification.VideoImport = videoImport
 626
 627       return notification
 628     }
 629
 630     function emailSender (emails: string[]) {
 631       return success
 632         ? Emailer.Instance.myVideoImportSuccessNotification(emails, videoImport)
 633         : Emailer.Instance.myVideoImportErrorNotification(emails, videoImport)
 634     }
 635
 636     return this.notify({ users: [ user ], settingGetter, notificationCreator, emailSender })
 637   }
 638
 639   private async notifyModeratorsOfNewUserRegistration (registeredUser: MUserDefault) {
 640     const moderators = await UserModel.listWithRight(UserRight.MANAGE_USERS)
 641     if (moderators.length === 0) return
 642
 643     logger.info(
 644       'Notifying %s moderators of new user registration of %s.',
 645       moderators.length, registeredUser.username
 646     )
 647
 648     function settingGetter (user: MUserWithNotificationSetting) {
 649       return user.NotificationSetting.newUserRegistration
 650     }
 651
 652     async function notificationCreator (user: MUserWithNotificationSetting) {
 653       const notification = await UserNotificationModel.create<UserNotificationModelForApi>({
 654         type: UserNotificationType.NEW_USER_REGISTRATION,
 655         userId: user.id,
 656         accountId: registeredUser.Account.id
 657       })
 658       notification.Account = registeredUser.Account
 659
 660       return notification
 661     }
 662
 663     function emailSender (emails: string[]) {
 664       return Emailer.Instance.addNewUserRegistrationNotification(emails, registeredUser)
 665     }
 666
 667     return this.notify({ users: moderators, settingGetter, notificationCreator, emailSender })
 668   }
 669
 670   private async notify<T extends MUserWithNotificationSetting> (options: {
 671     users: T[]
 672     notificationCreator: (user: T) => Promise<UserNotificationModelForApi>
 673     emailSender: (emails: string[]) => void
 674     settingGetter: (user: T) => UserNotificationSettingValue
 675   }) {
 676     const emails: string[] = []
 677
 678     for (const user of options.users) {
 679       if (this.isWebNotificationEnabled(options.settingGetter(user))) {
 680         const notification = await options.notificationCreator(user)
 681
 682         PeerTubeSocket.Instance.sendNotification(user.id, notification)
 683       }
 684
 685       if (this.isEmailEnabled(user, options.settingGetter(user))) {
 686         emails.push(user.email)
 687       }
 688     }
 689
 690     if (emails.length !== 0) {
 691       options.emailSender(emails)
 692     }
 693   }
 694
 695   private isEmailEnabled (user: MUser, value: UserNotificationSettingValue) {
 696     if (CONFIG.SIGNUP.REQUIRES_EMAIL_VERIFICATION === true && user.emailVerified === false) return false
 697
 698     return value & UserNotificationSettingValue.EMAIL
 699   }
 700
 701   private isWebNotificationEnabled (value: UserNotificationSettingValue) {
 702     return value & UserNotificationSettingValue.WEB
 703   }
 704
 705   private isBlockedByServerOrUser (targetAccount: MAccountServer, user?: MUserAccount) {
 706     return isBlockedByServerOrAccount(targetAccount, user?.Account)
 707   }
 708
 709   private getAbuseUrl (abuse: MAbuseFull) {
 710     return abuse.VideoAbuse?.Video?.url ||
 711       abuse.VideoCommentAbuse?.VideoComment?.url ||
 712       abuse.FlaggedAccount.Actor.url
 713   }
 714
 715   static get Instance () {
 716     return this.instance || (this.instance = new this())
 717   }
 718 }
 719
 720 // ---------------------------------------------------------------------------
 721
 722 export {
 723   Notifier
 724 }