aboutsummaryrefslogtreecommitdiffhomepage
path: root/server/models/utils.ts
blob: 93723816f29bc499a49349c7ec9a13beadc1bd27 (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
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
import { literal, Model, ModelStatic, Op, OrderItem, Sequelize } from 'sequelize'
import validator from 'validator'
import { forceNumber } from '@shared/core-utils'
import { AttributesOnly } from '@shared/typescript-utils'

type SortType = { sortModel: string, sortValue: string }

// Translate for example "-name" to [ [ 'name', 'DESC' ], [ 'id', 'ASC' ] ]
function getSort (value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] {
  const { direction, field } = buildDirectionAndField(value)

  let finalField: string | ReturnType<typeof Sequelize.col>

  if (field.toLowerCase() === 'match') { // Search
    finalField = Sequelize.col('similarity')
  } else {
    finalField = field
  }

  return [ [ finalField, direction ], lastSort ]
}

function getAdminUsersSort (value: string): OrderItem[] {
  const { direction, field } = buildDirectionAndField(value)

  let finalField: string | ReturnType<typeof Sequelize.col>

  if (field === 'videoQuotaUsed') { // Users list
    finalField = Sequelize.col('videoQuotaUsed')
  } else {
    finalField = field
  }

  const nullPolicy = direction === 'ASC'
    ? 'NULLS FIRST'
    : 'NULLS LAST'

  // FIXME: typings
  return [ [ finalField as any, direction, nullPolicy ], [ 'id', 'ASC' ] ]
}

function getPlaylistSort (value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] {
  const { direction, field } = buildDirectionAndField(value)

  if (field.toLowerCase() === 'name') {
    return [ [ 'displayName', direction ], lastSort ]
  }

  return getSort(value, lastSort)
}

function getCommentSort (value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] {
  const { direction, field } = buildDirectionAndField(value)

  if (field === 'totalReplies') {
    return [
      [ Sequelize.literal('"totalReplies"'), direction ],
      lastSort
    ]
  }

  return getSort(value, lastSort)
}

function getVideoSort (value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] {
  const { direction, field } = buildDirectionAndField(value)

  if (field.toLowerCase() === 'trending') { // Sort by aggregation
    return [
      [ Sequelize.fn('COALESCE', Sequelize.fn('SUM', Sequelize.col('VideoViews.views')), '0'), direction ],

      [ Sequelize.col('VideoModel.views'), direction ],

      lastSort
    ]
  } else if (field === 'publishedAt') {
    return [
      [ 'ScheduleVideoUpdate', 'updateAt', direction + ' NULLS LAST' ],

      [ Sequelize.col('VideoModel.publishedAt'), direction ],

      lastSort
    ]
  }

  let finalField: string | ReturnType<typeof Sequelize.col>

  // Alias
  if (field.toLowerCase() === 'match') { // Search
    finalField = Sequelize.col('similarity')
  } else {
    finalField = field
  }

  const firstSort: OrderItem = typeof finalField === 'string'
    ? finalField.split('.').concat([ direction ]) as OrderItem
    : [ finalField, direction ]

  return [ firstSort, lastSort ]
}

function getBlacklistSort (model: any, value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] {
  const [ firstSort ] = getSort(value)

  if (model) return [ [ literal(`"${model}.${firstSort[0]}" ${firstSort[1]}`) ], lastSort ] as OrderItem[]
  return [ firstSort, lastSort ]
}

function getInstanceFollowsSort (value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] {
  const { direction, field } = buildDirectionAndField(value)

  if (field === 'redundancyAllowed') {
    return [
      [ 'ActorFollowing.Server.redundancyAllowed', direction ],
      lastSort
    ]
  }

  return getSort(value, lastSort)
}

function getChannelSyncSort (value: string): OrderItem[] {
  const { direction, field } = buildDirectionAndField(value)
  if (field.toLowerCase() === 'videochannel') {
    return [
      [ literal('"VideoChannel.name"'), direction ]
    ]
  }
  return [ [ field, direction ] ]
}

function isOutdated (model: { createdAt: Date, updatedAt: Date }, refreshInterval: number) {
  if (!model.createdAt || !model.updatedAt) {
    throw new Error('Miss createdAt & updatedAt attributes to model')
  }

  const now = Date.now()
  const createdAtTime = model.createdAt.getTime()
  const updatedAtTime = model.updatedAt.getTime()

  return (now - createdAtTime) > refreshInterval && (now - updatedAtTime) > refreshInterval
}

function throwIfNotValid (value: any, validator: (value: any) => boolean, fieldName = 'value', nullable = false) {
  if (nullable && (value === null || value === undefined)) return

  if (validator(value) === false) {
    throw new Error(`"${value}" is not a valid ${fieldName}.`)
  }
}

function buildTrigramSearchIndex (indexName: string, attribute: string) {
  return {
    name: indexName,
    // FIXME: gin_trgm_ops is not taken into account in Sequelize 6, so adding it ourselves in the literal function
    fields: [ Sequelize.literal('lower(immutable_unaccent(' + attribute + ')) gin_trgm_ops') as any ],
    using: 'gin',
    operator: 'gin_trgm_ops'
  }
}

function createSimilarityAttribute (col: string, value: string) {
  return Sequelize.fn(
    'similarity',

    searchTrigramNormalizeCol(col),

    searchTrigramNormalizeValue(value)
  )
}

function buildBlockedAccountSQL (blockerIds: number[]) {
  const blockerIdsString = blockerIds.join(', ')

  return 'SELECT "targetAccountId" AS "id" FROM "accountBlocklist" WHERE "accountId" IN (' + blockerIdsString + ')' +
    ' UNION ' +
    'SELECT "account"."id" AS "id" FROM account INNER JOIN "actor" ON account."actorId" = actor.id ' +
    'INNER JOIN "serverBlocklist" ON "actor"."serverId" = "serverBlocklist"."targetServerId" ' +
    'WHERE "serverBlocklist"."accountId" IN (' + blockerIdsString + ')'
}

function buildServerIdsFollowedBy (actorId: any) {
  const actorIdNumber = forceNumber(actorId)

  return '(' +
    'SELECT "actor"."serverId" FROM "actorFollow" ' +
    'INNER JOIN "actor" ON actor.id = "actorFollow"."targetActorId" ' +
    'WHERE "actorFollow"."actorId" = ' + actorIdNumber +
  ')'
}

function buildWhereIdOrUUID (id: number | string) {
  return validator.isInt('' + id) ? { id } : { uuid: id }
}

function parseAggregateResult (result: any) {
  if (!result) return 0

  const total = forceNumber(result)
  if (isNaN(total)) return 0

  return total
}

function parseRowCountResult (result: any) {
  if (result.length !== 0) return result[0].total

  return 0
}

function createSafeIn (sequelize: Sequelize, toEscape: (string | number)[], additionalUnescaped: string[] = []) {
  return toEscape.map(t => {
    return t === null
      ? null
      : sequelize.escape('' + t)
  }).concat(additionalUnescaped).join(', ')
}

function buildLocalAccountIdsIn () {
  return literal(
    '(SELECT "account"."id" FROM "account" INNER JOIN "actor" ON "actor"."id" = "account"."actorId" AND "actor"."serverId" IS NULL)'
  )
}

function buildLocalActorIdsIn () {
  return literal(
    '(SELECT "actor"."id" FROM "actor" WHERE "actor"."serverId" IS NULL)'
  )
}

function buildDirectionAndField (value: string) {
  let field: string
  let direction: 'ASC' | 'DESC'

  if (value.substring(0, 1) === '-') {
    direction = 'DESC'
    field = value.substring(1)
  } else {
    direction = 'ASC'
    field = value
  }

  return { direction, field }
}

function searchAttribute (sourceField?: string, targetField?: string) {
  if (!sourceField) return {}

  return {
    [targetField]: {
      // FIXME: ts error
      [Op.iLike as any]: `%${sourceField}%`
    }
  }
}

function buildSQLAttributes <M extends Model> (options: {
  model: ModelStatic<M>
  tableName: string

  excludeAttributes?: Exclude<keyof AttributesOnly<M>, symbol>[]
  aliasPrefix?: string
}) {
  const { model, tableName, aliasPrefix, excludeAttributes } = options

  const attributes = Object.keys(model.getAttributes()) as Exclude<keyof AttributesOnly<M>, symbol>[]

  return attributes
    .filter(a => {
      if (!excludeAttributes) return true
      if (excludeAttributes.includes(a)) return false

      return true
    })
    .map(a => {
      return `"${tableName}"."${a}" AS "${aliasPrefix || ''}${a}"`
    })
}

// ---------------------------------------------------------------------------

export {
  buildSQLAttributes,
  buildBlockedAccountSQL,
  buildLocalActorIdsIn,
  getPlaylistSort,
  SortType,
  buildLocalAccountIdsIn,
  getSort,
  getCommentSort,
  getAdminUsersSort,
  getVideoSort,
  getBlacklistSort,
  getChannelSyncSort,
  createSimilarityAttribute,
  throwIfNotValid,
  buildServerIdsFollowedBy,
  buildTrigramSearchIndex,
  buildWhereIdOrUUID,
  isOutdated,
  parseAggregateResult,
  getInstanceFollowsSort,
  buildDirectionAndField,
  createSafeIn,
  searchAttribute,
  parseRowCountResult
}

// ---------------------------------------------------------------------------

function searchTrigramNormalizeValue (value: string) {
  return Sequelize.fn('lower', Sequelize.fn('immutable_unaccent', value))
}

function searchTrigramNormalizeCol (col: string) {
  return Sequelize.fn('lower', Sequelize.fn('immutable_unaccent', Sequelize.col(col)))
}