authelia/internal/configuration/validator/authentication.go

98 lines
3.0 KiB
Go

package validator
import (
"errors"
"fmt"
"net/url"
"github.com/clems4ever/authelia/internal/configuration/schema"
)
var ldapProtocolPrefix = "ldap://"
var ldapsProtocolPrefix = "ldaps://"
func validateFileAuthenticationBackend(configuration *schema.FileAuthenticationBackendConfiguration, validator *schema.StructValidator) {
if configuration.Path == "" {
validator.Push(errors.New("Please provide a `path` for the users database in `authentication_backend`"))
}
}
func validateLdapURL(ldapURL string, validator *schema.StructValidator) string {
u, err := url.Parse(ldapURL)
if err != nil {
validator.Push(errors.New("Unable to parse URL to ldap server. The scheme is probably missing: ldap:// or ldaps://"))
return ""
}
if !(u.Scheme == "ldap" || u.Scheme == "ldaps") {
validator.Push(errors.New("Unknown scheme for ldap url, should be ldap:// or ldaps://"))
return ""
}
if u.Scheme == "ldap" && u.Port() == "" {
u.Host += ":389"
} else if u.Scheme == "ldaps" && u.Port() == "" {
u.Host += ":636"
}
if !u.IsAbs() {
validator.Push(fmt.Errorf("URL to LDAP %s is still not absolute, it should be something like ldap://127.0.0.1:389", u.String()))
}
return u.String()
}
func validateLdapAuthenticationBackend(configuration *schema.LDAPAuthenticationBackendConfiguration, validator *schema.StructValidator) {
if configuration.URL == "" {
validator.Push(errors.New("Please provide a URL to the LDAP server"))
} else {
configuration.URL = validateLdapURL(configuration.URL, validator)
}
if configuration.User == "" {
validator.Push(errors.New("Please provide a user name to connect to the LDAP server"))
}
if configuration.Password == "" {
validator.Push(errors.New("Please provide a password to connect to the LDAP server"))
}
if configuration.BaseDN == "" {
validator.Push(errors.New("Please provide a base DN to connect to the LDAP server"))
}
if configuration.UsersFilter == "" {
configuration.UsersFilter = "(cn={0})"
}
if configuration.GroupsFilter == "" {
configuration.GroupsFilter = "(member={dn})"
}
if configuration.GroupNameAttribute == "" {
configuration.GroupNameAttribute = "cn"
}
if configuration.MailAttribute == "" {
configuration.MailAttribute = "mail"
}
}
// ValidateAuthenticationBackend validates and update authentication backend configuration.
func ValidateAuthenticationBackend(configuration *schema.AuthenticationBackendConfiguration, validator *schema.StructValidator) {
if configuration.Ldap == nil && configuration.File == nil {
validator.Push(errors.New("Please provide `ldap` or `file` object in `authentication_backend`"))
}
if configuration.Ldap != nil && configuration.File != nil {
validator.Push(errors.New("You cannot provide both `ldap` and `file` objects in `authentication_backend`"))
}
if configuration.File != nil {
validateFileAuthenticationBackend(configuration.File, validator)
} else if configuration.Ldap != nil {
validateLdapAuthenticationBackend(configuration.Ldap, validator)
}
}