forgejo/modules/validation/validatable.go

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