Add Validator from github.com/go-playground/validator for LDAP config

Add error function to check if there are any parent error

errors/errors.go

@@ -92,6 +92,7 @@ type Error interface {
 
 	IsError(e error) bool
 	HasError(err error) bool
+	HasParent() bool
 
 	AddParent(parent ...error)
 	SetParent(parent ...error)
@@ -243,6 +244,10 @@ func (e *errors) HasError(err error) bool {
 	return false
 }
 
+func (e *errors) HasParent() bool {
+	return len(e.p) > 0
+}
+
 func (e *errors) SetParent(parent ...error) {
 	e.p = make([]Error, 0)
 	e.AddParent(parent...)

ldap/error.go

@@ -45,6 +45,7 @@ const (
 	ErrorLDAPInvalidUID
 	ErrorLDAPAttributeNotFound
 	ErrorLDAPAttributeEmpty
+	ErrorLDAPValidatorError
 )
 
 var isCodeError = false
@@ -94,6 +95,8 @@ func getMessage(code errors.CodeError) (message string) {
 		return "requested attribute is not found"
 	case ErrorLDAPAttributeEmpty:
 		return "requested attribute is empty"
+	case ErrorLDAPValidatorError:
+		return "invalid validation config"
 	}
 
 	return ""

ldap/ldap.go

@@ -92,7 +92,7 @@ func (lc *HelperLDAP) ForceTLSMode(tlsMode TLSMode, tlsConfig *tls.Config) {
 	if tlsConfig != nil {
 		lc.tlsConfig = tlsConfig
 	} else {
-		//nosec nolint gosec
+		//nolint gosec /* #nosec */
 		lc.tlsConfig = &tls.Config{}
 	}
 

ldap/model.go

@@ -27,6 +27,9 @@ package ldap
 
 import (
 	"fmt"
+
+	"github.com/go-playground/validator/v10"
+	"github.com/nabbar/golib/errors"
 )
 
 type TLSMode uint8
@@ -61,12 +64,12 @@ func GetDefaultAttributes() []string {
 }
 
 type Config struct {
-	Uri         string `cloud:"uri" mapstructure:"uri" json:"uri" yaml:"uri" toml:"uri"`
+	Uri         string `cloud:"uri" mapstructure:"uri" json:"uri" yaml:"uri" toml:"uri" validate:"url,required"`
-	PortLdap    int    `cloud:"port-ldap" mapstructure:"port-ldap" json:"port-ldap" yaml:"port-ldap" toml:"port-ldap"`
+	PortLdap    int    `cloud:"port-ldap" mapstructure:"port-ldap" json:"port-ldap" yaml:"port-ldap" toml:"port-ldap" validate:"int,gte=0,nefield=Portldaps,required"`
-	Portldaps   int    `cloud:"port-ldaps" mapstructure:"port-ldaps" json:"port-ldaps" yaml:"port-ldaps" toml:"port-ldaps"`
+	Portldaps   int    `cloud:"port-ldaps" mapstructure:"port-ldaps" json:"port-ldaps" yaml:"port-ldaps" toml:"port-ldaps" validate:"int,nefield=Portldap,omitempty"`
-	Basedn      string `cloud:"basedn" mapstructure:"basedn" json:"basedn" yaml:"basedn" toml:"basedn"`
+	Basedn      string `cloud:"basedn" mapstructure:"basedn" json:"basedn" yaml:"basedn" toml:"basedn" validate:"printascii,omitempty"`
-	FilterGroup string `cloud:"filter-group" mapstructure:"filter-group" json:"filter-group" yaml:"filter-group" toml:"filter-group"`
+	FilterGroup string `cloud:"filter-group" mapstructure:"filter-group" json:"filter-group" yaml:"filter-group" toml:"filter-group" validate:"printascii,required"`
-	FilterUser  string `cloud:"filter-user" mapstructure:"filter-user" json:"filter-user" yaml:"filter-user" toml:"filter-user"`
+	FilterUser  string `cloud:"filter-user" mapstructure:"filter-user" json:"filter-user" yaml:"filter-user" toml:"filter-user" validate:"printascii,required"`
 }
 
 func NewConfig() *Config {
@@ -103,3 +106,25 @@ func (cnf Config) PatternFilterGroup() string {
 func (cnf Config) PatternFilterUser() string {
 	return cnf.FilterUser
 }
+
+func (cnf Config) Validate() errors.Error {
+	val := validator.New()
+	err := val.Struct(cnf)
+
+	if e, ok := err.(*validator.InvalidValidationError); ok {
+		return ErrorLDAPValidatorError.ErrorParent(e)
+	}
+
+	out := ErrorLDAPValidatorError.Error(nil)
+
+	for _, e := range err.(validator.ValidationErrors) {
+		//nolint goerr113
+		out.AddParent(fmt.Errorf("config field '%s' is not validated by constraint '%s'", e.Field(), e.ActualTag()))
+	}
+
+	if out.HasParent() {
+		return out
+	}
+
+	return nil
+}