// Copyright 2023, 2024, 2025 The Forgejo Authors. All rights reserved.// SPDX-License-Identifier: MIT package validation import ( "fmt" "reflect" "strings" "unicode/utf8" "forgejo.org/modules/timeutil" ap "github.com/go-ap/activitypub") // ErrNotValid represents an validation errortype ErrNotValid struct { Message string} func (err ErrNotValid) Error() string { return fmt.Sprintf("Validation Error: %v", err.Message)} // IsErrNotValid checks if an error is a ErrNotValid.func IsErrNotValid(err error) bool { _, ok := err.(ErrNotValid) return ok} type Validateable interface { Validate() []string} func IsValid(v Validateable) (bool, error) { if valdationErrors := v.Validate(); len(valdationErrors) > 0 { typeof := reflect.TypeOf(v) errString := strings.Join(valdationErrors, "\n") return false, ErrNotValid{fmt.Sprint(typeof, ": ", errString)} } return true, nil} func ValidateIDExists(value ap.Item, name string) []string { if value == nil { return []string{fmt.Sprintf("Field %v must not be nil", name)} } return ValidateNotEmpty(value.GetID().String(), name)} func ValidateNotEmpty(value any, name string) []string { isValid := true switch v := value.(type) { case string: if v == "" { isValid = false } case timeutil.TimeStamp: if v.IsZero() { isValid = false } case uint16: if v == 0 { isValid = false } case int64: if v == 0 { isValid = false } default: isValid = false } if isValid { return []string{} } return []string{fmt.Sprintf("Value %v should not be empty", name)}} func ValidateMaxLen(value string, maxLen int, name string) []string { if utf8.RuneCountInString(value) > maxLen { return []string{fmt.Sprintf("Value %v is longer than expected length %v", name, maxLen)} } return []string{}} func ValidateOneOf(value any, allowed []any, name string) []string { for _, allowedElem := range allowed { if value == allowedElem { return []string{} } } return []string{fmt.Sprintf("Field %s contains the value %v, which is not in allowed subset %v", name, value, allowed)}}
// Copyright 2023, 2024, 2025 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package validation
import (
"fmt"
"reflect"
"strings"
"unicode/utf8"
"forgejo.org/modules/timeutil"
ap "github.com/go-ap/activitypub"
)
// ErrNotValid represents an validation error
type ErrNotValid struct {
Message string
}
func (err ErrNotValid) Error() string {
return fmt.Sprintf("Validation Error: %v", err.Message)
}
// IsErrNotValid checks if an error is a ErrNotValid.
func IsErrNotValid(err error) bool {
_, ok := err.(ErrNotValid)
return ok
}
type Validateable interface {
Validate() []string
}
func IsValid(v Validateable) (bool, error) {
if valdationErrors := v.Validate(); len(valdationErrors) > 0 {
typeof := reflect.TypeOf(v)
errString := strings.Join(valdationErrors, "\n")
return false, ErrNotValid{fmt.Sprint(typeof, ": ", errString)}
}
return true, nil
}
func ValidateIDExists(value ap.Item, name string) []string {
if value == nil {
return []string{fmt.Sprintf("Field %v must not be nil", name)}
}
return ValidateNotEmpty(value.GetID().String(), name)
}
func ValidateNotEmpty(value any, name string) []string {
isValid := true
switch v := value.(type) {
case string:
if v == "" {
isValid = false
}
case timeutil.TimeStamp:
if v.IsZero() {
isValid = false
}
case uint16:
if v == 0 {
isValid = false
}
case int64:
if v == 0 {
isValid = false
}
default:
isValid = false
}
if isValid {
return []string{}
}
return []string{fmt.Sprintf("Value %v should not be empty", name)}
}
func ValidateMaxLen(value string, maxLen int, name string) []string {
if utf8.RuneCountInString(value) > maxLen {
return []string{fmt.Sprintf("Value %v is longer than expected length %v", name, maxLen)}
}
return []string{}
}
func ValidateOneOf(value any, allowed []any, name string) []string {
for _, allowedElem := range allowed {
if value == allowedElem {
return []string{}
}
}
return []string{fmt.Sprintf("Field %s contains the value %v, which is not in allowed subset %v", name, value, allowed)}
}