import 'multer'
-import * as validator from 'validator'
+import { UploadFilesForCheck } from 'express'
+import { sep } from 'path'
+import validator from 'validator'
+import { isShortUUID, shortToUUID } from '../uuid'
function exists (value: any) {
return value !== undefined && value !== null
}
-function isArray (value: any) {
+function isSafePath (p: string) {
+ return exists(p) &&
+ (p + '').split(sep).every(part => {
+ return [ '..' ].includes(part) === false
+ })
+}
+
+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)
}
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)
}
return typeof value === 'boolean' || (typeof value === 'string' && validator.isBoolean(value))
}
-function toIntOrNull (value: string) {
- if (value === 'null') return null
+function isIntOrNull (value: any) {
+ return value === null || validator.isInt('' + value)
+}
+
+// ---------------------------------------------------------------------------
+
+function isFileFieldValid (
+ files: { [ fieldname: string ]: Express.Multer.File[] } | Express.Multer.File[],
+ field: string,
+ optional = false
+) {
+ // Should have files
+ if (!files) return optional
+ if (isArray(files)) return optional
+
+ // Should have a file
+ const fileArray = files[field]
+ if (!fileArray || fileArray.length === 0) {
+ return optional
+ }
- return validator.toInt(value)
+ // The file should exist
+ const file = fileArray[0]
+ if (!file || !file.originalname) return false
+ return file
}
-function toValueOrNull (value: string) {
- if (value === 'null') return null
+function isFileMimeTypeValid (
+ files: UploadFilesForCheck,
+ mimeTypeRegex: string,
+ field: string,
+ optional = false
+) {
+ // Should have files
+ if (!files) return optional
+ if (isArray(files)) return optional
- return value
+ // Should have a file
+ const fileArray = files[field]
+ if (!fileArray || fileArray.length === 0) {
+ return optional
+ }
+
+ // The file should exist
+ const file = fileArray[0]
+ if (!file || !file.originalname) return false
+
+ return new RegExp(`^${mimeTypeRegex}$`, 'i').test(file.mimetype)
}
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 (isArray(files)) return optional
// Should have a file
- const fileArray = files[ field ]
+ const fileArray = files[field]
if (!fileArray || fileArray.length === 0) {
return optional
}
// The file should exist
- const file = fileArray[ 0 ]
+ const file = fileArray[0]
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)
}
// ---------------------------------------------------------------------------
+function toCompleteUUID (value: string) {
+ if (isShortUUID(value)) return shortToUUID(value)
+
+ 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 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))
+}
+
+// ---------------------------------------------------------------------------
+
export {
exists,
+ isArrayOf,
+ isNotEmptyIntArray,
isArray,
+ isIntOrNull,
isIdValid,
+ isSafePath,
+ isNotEmptyStringArray,
isUUIDValid,
+ toCompleteUUIDs,
+ toCompleteUUID,
isIdOrUUIDValid,
isDateValid,
toValueOrNull,
+ toBooleanOrNull,
isBooleanValid,
toIntOrNull,
+ areUUIDsValid,
+ toArray,
+ toIntArray,
+ isFileFieldValid,
+ isFileMimeTypeValid,
isFileValid
}