aboutsummaryrefslogtreecommitdiffhomepage
path: root/server/helpers/custom-validators/misc.ts
blob: 2c4cd1b9f22f085c3910951f54c6ddc327c748a4 (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
import 'multer'
import { UploadFilesForCheck } from 'express'
import { sep } from 'path'
import validator from 'validator'
import { isShortUUID, shortToUUID } from '@shared/extra-utils'

function exists (value: any) {
  return value !== undefined && value !== null
}

function isSafePath (p: string) {
  return exists(p) &&
    (p + '').split(sep).every(part => {
      return [ '..' ].includes(part) === false
    })
}

function isSafeFilename (filename: string, extension?: string) {
  const regex = extension
    ? new RegExp(`^[a-z0-9-]+\\.${extension}$`)
    : new RegExp(`^[a-z0-9-]+\\.[a-z0-9]{1,8}$`)

  return typeof filename === 'string' && !!filename.match(regex)
}

function isSafePeerTubeFilenameWithoutExtension (filename: string) {
  return filename.match(/^[a-z0-9-]+$/)
}

function isArray (value: any): value is any[] {
  return Array.isArray(value)
}

function isNotEmptyIntArray (value: any) {
  return Array.isArray(value) && value.every(v => validator.isInt('' + v)) && value.length !== 0
}

function isNotEmptyStringArray (value: any) {
  return Array.isArray(value) && value.every(v => typeof v === 'string' && v.length !== 0) && value.length !== 0
}

function isArrayOf (value: any, validator: (value: any) => boolean) {
  return isArray(value) && value.every(v => validator(v))
}

function isDateValid (value: string) {
  return exists(value) && validator.isISO8601(value)
}

function isIdValid (value: string) {
  return exists(value) && validator.isInt('' + value)
}

function isUUIDValid (value: string) {
  return exists(value) && validator.isUUID('' + value, 4)
}

function areUUIDsValid (values: string[]) {
  return isArray(values) && values.every(v => isUUIDValid(v))
}

function isIdOrUUIDValid (value: string) {
  return isIdValid(value) || isUUIDValid(value)
}

function isBooleanValid (value: any) {
  return typeof value === 'boolean' || (typeof value === 'string' && validator.isBoolean(value))
}

function isIntOrNull (value: any) {
  return value === null || validator.isInt('' + value)
}

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

function isFileValid (options: {
  files: UploadFilesForCheck

  maxSize: number | null
  mimeTypeRegex: string | null

  field?: string

  optional?: boolean // Default false
}) {
  const { files, mimeTypeRegex, field, maxSize, optional = false } = options

  // Should have files
  if (!files) return optional

  const fileArray = isArray(files)
    ? files
    : files[field]

  if (!fileArray || !isArray(fileArray) || fileArray.length === 0) {
    return optional
  }

  // The file exists
  const file = fileArray[0]
  if (!file?.originalname) return false

  // Check size
  if ((maxSize !== null) && file.size > maxSize) return false

  if (mimeTypeRegex === null) return true

  return checkMimetypeRegex(file.mimetype, mimeTypeRegex)
}

function checkMimetypeRegex (fileMimeType: string, mimeTypeRegex: string) {
  return new RegExp(`^${mimeTypeRegex}$`, 'i').test(fileMimeType)
}

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

function toCompleteUUID (value: string) {
  if (isShortUUID(value)) {
    try {
      return shortToUUID(value)
    } catch {
      return null
    }
  }

  return value
}

function toCompleteUUIDs (values: string[]) {
  return values.map(v => toCompleteUUID(v))
}

function toIntOrNull (value: string) {
  const v = toValueOrNull(value)

  if (v === null || v === undefined) return v
  if (typeof v === 'number') return v

  return validator.toInt('' + v)
}

function toBooleanOrNull (value: any) {
  const v = toValueOrNull(value)

  if (v === null || v === undefined) return v
  if (typeof v === 'boolean') return v

  return validator.toBoolean('' + v)
}

function toValueOrNull (value: string) {
  if (value === 'null') return null

  return value
}

function toIntArray (value: any) {
  if (!value) return []
  if (isArray(value) === false) return [ validator.toInt(value) ]

  return value.map(v => validator.toInt(v))
}

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

export {
  exists,
  isArrayOf,
  isNotEmptyIntArray,
  isArray,
  isIntOrNull,
  isIdValid,
  isSafePath,
  isNotEmptyStringArray,
  isUUIDValid,
  toCompleteUUIDs,
  toCompleteUUID,
  isIdOrUUIDValid,
  isDateValid,
  toValueOrNull,
  toBooleanOrNull,
  isBooleanValid,
  toIntOrNull,
  areUUIDsValid,
  toIntArray,
  isFileValid,
  isSafePeerTubeFilenameWithoutExtension,
  isSafeFilename,
  checkMimetypeRegex
}