forgejo/modules/validation/validatable.go
2024-02-10 15:19:36 +01:00

70 lines
1.4 KiB
Go

// Copyright 2023 The forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package validation
import (
"fmt"
"strings"
"unicode/utf8"
"code.gitea.io/gitea/modules/timeutil"
)
type Validateable interface {
Validate() []string
}
func IsValid(v Validateable) (bool, error) {
if err := v.Validate(); len(err) > 0 {
errString := strings.Join(err, "\n")
return false, fmt.Errorf(errString)
}
return true, nil
}
func ValidateNotEmpty(value any, fieldName string) []string {
isValid := true
switch v := value.(type) {
case string:
if v == "" {
isValid = false
}
case timeutil.TimeStamp:
if v.IsZero() {
isValid = false
}
case int64:
if v == 0 {
isValid = false
}
default:
isValid = false
}
if isValid {
return []string{}
}
return []string{fmt.Sprintf("Field %v may not be empty", fieldName)}
}
func ValidateMaxLen(value string, maxLen int, fieldName string) []string {
if utf8.RuneCountInString(value) > maxLen {
return []string{fmt.Sprintf("Value in field %v was longer than %v", fieldName, maxLen)}
}
return []string{}
}
func ValidateOneOf(value any, allowed []any) []string {
for _, allowedElem := range allowed {
if value == allowedElem {
return []string{}
}
}
return []string{fmt.Sprintf("Value %v is not contained in allowed values [%v]", value, allowed)}
}
func ValidateSuffix(str, suffix string) bool {
return strings.HasSuffix(str, suffix)
}