aboutsummaryrefslogtreecommitdiffhomepage
path: root/server/models/video/video-caption.ts
blob: e8e883dd012a7a7cfd177b07dcaf139ccec13199 (plain) (blame)
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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
import { remove } from 'fs-extra'
import { join } from 'path'
import { OrderItem, Transaction } from 'sequelize'
import {
  AllowNull,
  BeforeDestroy,
  BelongsTo,
  Column,
  CreatedAt,
  DataType,
  ForeignKey,
  Is,
  Model,
  Scopes,
  Table,
  UpdatedAt
} from 'sequelize-typescript'
import { buildRemoteVideoBaseUrl } from '@server/helpers/activitypub'
import { MVideoAccountLight, MVideoCaptionFormattable, MVideoCaptionVideo } from '@server/types/models'
import { VideoCaption } from '../../../shared/models/videos/caption/video-caption.model'
import { isVideoCaptionLanguageValid } from '../../helpers/custom-validators/video-captions'
import { logger } from '../../helpers/logger'
import { CONFIG } from '../../initializers/config'
import { CONSTRAINTS_FIELDS, LAZY_STATIC_PATHS, VIDEO_LANGUAGES, WEBSERVER } from '../../initializers/constants'
import { buildWhereIdOrUUID, throwIfNotValid } from '../utils'
import { VideoModel } from './video'

export enum ScopeNames {
  WITH_VIDEO_UUID_AND_REMOTE = 'WITH_VIDEO_UUID_AND_REMOTE'
}

@Scopes(() => ({
  [ScopeNames.WITH_VIDEO_UUID_AND_REMOTE]: {
    include: [
      {
        attributes: [ 'id', 'uuid', 'remote' ],
        model: VideoModel.unscoped(),
        required: true
      }
    ]
  }
}))

@Table({
  tableName: 'videoCaption',
  indexes: [
    {
      fields: [ 'videoId' ]
    },
    {
      fields: [ 'videoId', 'language' ],
      unique: true
    }
  ]
})
export class VideoCaptionModel extends Model {
  @CreatedAt
  createdAt: Date

  @UpdatedAt
  updatedAt: Date

  @AllowNull(false)
  @Is('VideoCaptionLanguage', value => throwIfNotValid(value, isVideoCaptionLanguageValid, 'language'))
  @Column
  language: string

  @AllowNull(true)
  @Column(DataType.STRING(CONSTRAINTS_FIELDS.COMMONS.URL.max))
  fileUrl: string

  @ForeignKey(() => VideoModel)
  @Column
  videoId: number

  @BelongsTo(() => VideoModel, {
    foreignKey: {
      allowNull: false
    },
    onDelete: 'CASCADE'
  })
  Video: VideoModel

  @BeforeDestroy
  static async removeFiles (instance: VideoCaptionModel) {
    if (!instance.Video) {
      instance.Video = await instance.$get('Video')
    }

    if (instance.isOwned()) {
      logger.info('Removing captions %s of video %s.', instance.Video.uuid, instance.language)

      try {
        await instance.removeCaptionFile()
      } catch (err) {
        logger.error('Cannot remove caption file of video %s.', instance.Video.uuid)
      }
    }

    return undefined
  }

  static loadByVideoIdAndLanguage (videoId: string | number, language: string): Promise<MVideoCaptionVideo> {
    const videoInclude = {
      model: VideoModel.unscoped(),
      attributes: [ 'id', 'remote', 'uuid' ],
      where: buildWhereIdOrUUID(videoId)
    }

    const query = {
      where: {
        language
      },
      include: [
        videoInclude
      ]
    }

    return VideoCaptionModel.findOne(query)
  }

  static insertOrReplaceLanguage (videoId: number, language: string, fileUrl: string, transaction: Transaction) {
    const values = {
      videoId,
      language,
      fileUrl
    }

    return VideoCaptionModel.upsert(values, { transaction, returning: true })
      .then(([ caption ]) => caption)
  }

  static listVideoCaptions (videoId: number): Promise<MVideoCaptionVideo[]> {
    const query = {
      order: [ [ 'language', 'ASC' ] ] as OrderItem[],
      where: {
        videoId
      }
    }

    return VideoCaptionModel.scope(ScopeNames.WITH_VIDEO_UUID_AND_REMOTE).findAll(query)
  }

  static getLanguageLabel (language: string) {
    return VIDEO_LANGUAGES[language] || 'Unknown'
  }

  static deleteAllCaptionsOfRemoteVideo (videoId: number, transaction: Transaction) {
    const query = {
      where: {
        videoId
      },
      transaction
    }

    return VideoCaptionModel.destroy(query)
  }

  isOwned () {
    return this.Video.remote === false
  }

  toFormattedJSON (this: MVideoCaptionFormattable): VideoCaption {
    return {
      language: {
        id: this.language,
        label: VideoCaptionModel.getLanguageLabel(this.language)
      },
      captionPath: this.getCaptionStaticPath()
    }
  }

  getCaptionStaticPath (this: MVideoCaptionFormattable) {
    return join(LAZY_STATIC_PATHS.VIDEO_CAPTIONS, this.getCaptionName())
  }

  getCaptionName (this: MVideoCaptionFormattable) {
    return `${this.Video.uuid}-${this.language}.vtt`
  }

  removeCaptionFile (this: MVideoCaptionFormattable) {
    return remove(CONFIG.STORAGE.CAPTIONS_DIR + this.getCaptionName())
  }

  getFileUrl (video: MVideoAccountLight) {
    if (!this.Video) this.Video = video as VideoModel

    if (video.isOwned()) return WEBSERVER.URL + this.getCaptionStaticPath()
    if (this.fileUrl) return this.fileUrl

    // Fallback if we don't have a file URL
    return buildRemoteVideoBaseUrl(video, this.getCaptionStaticPath())
  }
}