]>
Commit | Line | Data |
---|---|---|
1 | import 'multer' | |
2 | import * as validator from 'validator' | |
3 | import { sep } from 'path' | |
4 | import toBoolean = require('validator/lib/toBoolean') | |
5 | ||
6 | function exists (value: any) { | |
7 | return value !== undefined && value !== null | |
8 | } | |
9 | ||
10 | function isSafePath (p: string) { | |
11 | return exists(p) && | |
12 | (p + '').split(sep).every(part => { | |
13 | return [ '..' ].includes(part) === false | |
14 | }) | |
15 | } | |
16 | ||
17 | function isArray (value: any) { | |
18 | return Array.isArray(value) | |
19 | } | |
20 | ||
21 | function isNotEmptyIntArray (value: any) { | |
22 | return Array.isArray(value) && value.every(v => validator.isInt('' + v)) && value.length !== 0 | |
23 | } | |
24 | ||
25 | function isArrayOf (value: any, validator: (value: any) => boolean) { | |
26 | return isArray(value) && value.every(v => validator(v)) | |
27 | } | |
28 | ||
29 | function isDateValid (value: string) { | |
30 | return exists(value) && validator.isISO8601(value) | |
31 | } | |
32 | ||
33 | function isIdValid (value: string) { | |
34 | return exists(value) && validator.isInt('' + value) | |
35 | } | |
36 | ||
37 | function isUUIDValid (value: string) { | |
38 | return exists(value) && validator.isUUID('' + value, 4) | |
39 | } | |
40 | ||
41 | function isIdOrUUIDValid (value: string) { | |
42 | return isIdValid(value) || isUUIDValid(value) | |
43 | } | |
44 | ||
45 | function isBooleanValid (value: any) { | |
46 | return typeof value === 'boolean' || (typeof value === 'string' && validator.isBoolean(value)) | |
47 | } | |
48 | ||
49 | function toIntOrNull (value: string) { | |
50 | const v = toValueOrNull(value) | |
51 | ||
52 | if (v === null || v === undefined) return v | |
53 | if (typeof v === 'number') return v | |
54 | ||
55 | return validator.toInt(v) | |
56 | } | |
57 | ||
58 | function toBooleanOrNull (value: any) { | |
59 | const v = toValueOrNull(value) | |
60 | ||
61 | if (v === null || v === undefined) return v | |
62 | if (typeof v === 'boolean') return v | |
63 | ||
64 | return toBoolean(v) | |
65 | } | |
66 | ||
67 | function toValueOrNull (value: string) { | |
68 | if (value === 'null') return null | |
69 | ||
70 | return value | |
71 | } | |
72 | ||
73 | function toArray (value: any) { | |
74 | if (value && isArray(value) === false) return [ value ] | |
75 | ||
76 | return value | |
77 | } | |
78 | ||
79 | function toIntArray (value: any) { | |
80 | if (!value) return [] | |
81 | if (isArray(value) === false) return [ validator.toInt(value) ] | |
82 | ||
83 | return value.map(v => validator.toInt(v)) | |
84 | } | |
85 | ||
86 | function isFileValid ( | |
87 | files: { [ fieldname: string ]: Express.Multer.File[] } | Express.Multer.File[], | |
88 | mimeTypeRegex: string, | |
89 | field: string, | |
90 | maxSize: number | null, | |
91 | optional = false | |
92 | ) { | |
93 | // Should have files | |
94 | if (!files) return optional | |
95 | if (isArray(files)) return optional | |
96 | ||
97 | // Should have a file | |
98 | const fileArray = files[ field ] | |
99 | if (!fileArray || fileArray.length === 0) { | |
100 | return optional | |
101 | } | |
102 | ||
103 | // The file should exist | |
104 | const file = fileArray[ 0 ] | |
105 | if (!file || !file.originalname) return false | |
106 | ||
107 | // Check size | |
108 | if ((maxSize !== null) && file.size > maxSize) return false | |
109 | ||
110 | return new RegExp(`^${mimeTypeRegex}$`, 'i').test(file.mimetype) | |
111 | } | |
112 | ||
113 | // --------------------------------------------------------------------------- | |
114 | ||
115 | export { | |
116 | exists, | |
117 | isArrayOf, | |
118 | isNotEmptyIntArray, | |
119 | isArray, | |
120 | isIdValid, | |
121 | isSafePath, | |
122 | isUUIDValid, | |
123 | isIdOrUUIDValid, | |
124 | isDateValid, | |
125 | toValueOrNull, | |
126 | toBooleanOrNull, | |
127 | isBooleanValid, | |
128 | toIntOrNull, | |
129 | toArray, | |
130 | toIntArray, | |
131 | isFileValid | |
132 | } |