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validate.go
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validate.go
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package rekuest
import (
"strings"
"exusiai.dev/gommon/constant"
ut "github.com/go-playground/universal-translator"
"github.com/go-playground/validator/v10"
enTranslations "github.com/go-playground/validator/v10/translations/en"
jaTranslations "github.com/go-playground/validator/v10/translations/ja"
zhTranslations "github.com/go-playground/validator/v10/translations/zh"
zhTwTranslations "github.com/go-playground/validator/v10/translations/zh_tw"
"github.com/gofiber/fiber/v2"
"github.com/rs/zerolog/log"
"exusiai.dev/backend-next/internal/pkg/pgerr"
"exusiai.dev/backend-next/internal/util"
"exusiai.dev/backend-next/internal/util/i18n"
)
var Validate = util.NewValidator()
func init() {
var err error
entr, _ := i18n.UT.GetTranslator("en")
err = enTranslations.RegisterDefaultTranslations(Validate, entr)
if err != nil {
log.Warn().Err(err).Str("locale", "en").Msg("could not register translation")
}
zhtr, _ := i18n.UT.GetTranslator("zh")
err = zhTranslations.RegisterDefaultTranslations(Validate, zhtr)
if err != nil {
log.Warn().Err(err).Str("locale", "zh").Msg("could not register translation")
}
zhtwtr, _ := i18n.UT.GetTranslator("zh_Hant_TW")
err = zhTwTranslations.RegisterDefaultTranslations(Validate, zhtwtr)
if err != nil {
log.Warn().Err(err).Str("locale", "zh_Hant_TW").Msg("could not register translation")
}
jatr, _ := i18n.UT.GetTranslator("ja")
err = jaTranslations.RegisterDefaultTranslations(Validate, jatr)
if err != nil {
log.Warn().Err(err).Str("locale", "ja").Msg("could not register translation")
}
translators := map[string]ut.Translator{
"en": entr,
"zh": zhtr,
"zh_Hant_TW": zhtwtr,
"ja": jatr,
}
for l, t := range translators {
err = Validate.RegisterTranslation("caseinsensitiveoneof", t, func(ut ut.Translator) error {
return nil
}, func(ut ut.Translator, fe validator.FieldError) string {
t, _ := ut.T("oneof", fe.Field(), fe.Param())
return t
})
if err != nil {
log.Warn().Err(err).Str("locale", l).Msg("could not register translation for function caseinsensitiveoneof")
}
err = Validate.RegisterTranslation("arkserver", t, func(ut ut.Translator) error {
return nil
}, func(ut ut.Translator, fe validator.FieldError) string {
t, _ := ut.T("oneof", fe.Field(), strings.Join(constant.Servers, " "))
return t
})
if err != nil {
log.Warn().Err(err).Str("locale", l).Msg("could not register translation for function arkserver")
}
}
}
type ErrorResponse struct {
Field string `json:"field,omitempty"`
Violation string `json:"violation"`
Message string `json:"message"`
}
// Translate translates errors into ErrorResponses
func translate(utt ut.Translator, ve validator.ValidationErrors) []*ErrorResponse {
trans := []*ErrorResponse{}
var fe validator.FieldError
for i := 0; i < len(ve); i++ {
fe = ve[i]
message := fe.Translate(utt)
message = util.AddSpace(message)
trans = append(trans, &ErrorResponse{
Field: fe.Namespace(),
Violation: fe.Tag(),
Message: message,
})
}
return trans
}
func validateVar(ctx *fiber.Ctx, s any, tag string) []*ErrorResponse {
tr := TranslatorFromCtx(ctx)
err := Validate.Var(s, tag)
if err != nil {
errs := err.(validator.ValidationErrors)
return translate(tr, errs)
}
return nil
}
func ValidateStruct(ctx *fiber.Ctx, s any) []*ErrorResponse {
tr := TranslatorFromCtx(ctx)
err := Validate.Struct(s)
if err != nil {
errs, ok := err.(validator.ValidationErrors)
if !ok {
panic(err)
}
return translate(tr, errs)
}
return nil
}
// ValidBody will get the body from *fiber.Ctx using fiber#BodyParser(),
// and validate it using the validator singleton. If the validation passed it will write the unmarshalled body
// to dest and return a nil, otherwise it will return an error. Notice that dest shall
// always be a pointer.
func ValidBody(ctx *fiber.Ctx, dest any) error {
if err := ctx.BodyParser(dest); err != nil {
return pgerr.ErrInvalidReq.Msg("invalid request: %s", err)
}
if err := ValidateStruct(ctx, dest); err != nil {
return pgerr.NewInvalidViolations(err)
}
return nil
}
// ValidQuery will get the query from *fiber.Ctx using fiber#QueryParser(),
// and validate it using the validator singleton. If the validation passed it will write the unmarshalled query
// to dest and return a nil, otherwise it will return an error. Notice that dest shall
// always be a pointer.
func ValidQuery(ctx *fiber.Ctx, dest any) error {
if err := ctx.QueryParser(dest); err != nil {
return pgerr.ErrInvalidReq.Msg("invalid request: %s", err)
}
if err := ValidateStruct(ctx, dest); err != nil {
return pgerr.NewInvalidViolations(err)
}
return nil
}
func ValidStruct(ctx *fiber.Ctx, dest any) error {
if err := ValidateStruct(ctx, dest); err != nil {
return pgerr.NewInvalidViolations(err)
}
return nil
}
func ValidVar(ctx *fiber.Ctx, field any, tag string) error {
if err := validateVar(ctx, field, tag); err != nil {
return pgerr.NewInvalidViolations(err)
}
return nil
}
func ValidServer(ctx *fiber.Ctx, server string) error {
type request struct {
Server string `validate:"required,arkserver"`
}
if err := ValidStruct(ctx, request{server}); err != nil {
return err
}
return nil
}
func ValidCategory(ctx *fiber.Ctx, category string) error {
type request struct {
Category string `validate:"oneof=all automated manual"`
}
if err := ValidStruct(ctx, request{category}); err != nil {
return err
}
return nil
}