import 'multer'
import * as validator from 'validator'
+import { sep } from 'path'
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 isArray (value: any) {
return Array.isArray(value)
}
+function isNotEmptyIntArray (value: any) {
+ return Array.isArray(value) && value.every(v => validator.isInt('' + v)) && 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 toIntOrNull (value: string) {
- if (value === 'null') return null
+ const v = toValueOrNull(value)
+
+ if (v === null || v === undefined) return v
+ if (typeof v === 'number') return v
- return validator.toInt(value)
+ 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) {
return value
}
+function toArray (value: any) {
+ if (value && isArray(value) === false) return [ value ]
+
+ return value
+}
+
+function toIntArray (value: any) {
+ if (!value) return []
+ if (isArray(value) === false) return [ validator.toInt(value) ]
+
+ return value.map(v => validator.toInt(v))
+}
+
function isFileValid (
files: { [ fieldname: string ]: Express.Multer.File[] } | Express.Multer.File[],
mimeTypeRegex: string,
field: string,
- maxSize: number,
+ maxSize: number | null,
optional = false
) {
// Should have files
if (!file || !file.originalname) return false
// Check size
- if (maxSize && file.size > maxSize) return false
+ if ((maxSize !== null) && file.size > maxSize) return false
return new RegExp(`^${mimeTypeRegex}$`, 'i').test(file.mimetype)
}
export {
exists,
+ isArrayOf,
+ isNotEmptyIntArray,
isArray,
isIdValid,
+ isSafePath,
isUUIDValid,
isIdOrUUIDValid,
isDateValid,
toValueOrNull,
+ toBooleanOrNull,
isBooleanValid,
toIntOrNull,
+ toArray,
+ toIntArray,
isFileValid
}