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forgejo/services/auth/source/ldap/source_authenticate.go
KN4CK3R e8186f1c0f
Map OIDC groups to Orgs/Teams (#21441)
Fixes #19555

Test-Instructions:
https://github.com/go-gitea/gitea/pull/21441#issuecomment-1419438000

This PR implements the mapping of user groups provided by OIDC providers
to orgs teams in Gitea. The main part is a refactoring of the existing
LDAP code to make it usable from different providers.

Refactorings:
- Moved the router auth code from module to service because of import
cycles
- Changed some model methods to take a `Context` parameter
- Moved the mapping code from LDAP to a common location

I've tested it with Keycloak but other providers should work too. The
JSON mapping format is the same as for LDAP.


![grafik](https://user-images.githubusercontent.com/1666336/195634392-3fc540fc-b229-4649-99ac-91ae8e19df2d.png)

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2023-02-08 14:44:42 +08:00

133 lines
4 KiB
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package ldap
import (
"fmt"
"strings"
asymkey_model "code.gitea.io/gitea/models/asymkey"
"code.gitea.io/gitea/models/auth"
"code.gitea.io/gitea/models/db"
user_model "code.gitea.io/gitea/models/user"
auth_module "code.gitea.io/gitea/modules/auth"
"code.gitea.io/gitea/modules/util"
source_service "code.gitea.io/gitea/services/auth/source"
"code.gitea.io/gitea/services/mailer"
user_service "code.gitea.io/gitea/services/user"
)
// Authenticate queries if login/password is valid against the LDAP directory pool,
// and create a local user if success when enabled.
func (source *Source) Authenticate(user *user_model.User, userName, password string) (*user_model.User, error) {
loginName := userName
if user != nil {
loginName = user.LoginName
}
sr := source.SearchEntry(loginName, password, source.authSource.Type == auth.DLDAP)
if sr == nil {
// User not in LDAP, do nothing
return nil, user_model.ErrUserNotExist{Name: loginName}
}
isAttributeSSHPublicKeySet := len(strings.TrimSpace(source.AttributeSSHPublicKey)) > 0
// Update User admin flag if exist
if isExist, err := user_model.IsUserExist(db.DefaultContext, 0, sr.Username); err != nil {
return nil, err
} else if isExist {
if user == nil {
user, err = user_model.GetUserByName(db.DefaultContext, sr.Username)
if err != nil {
return nil, err
}
}
if user != nil && !user.ProhibitLogin {
cols := make([]string, 0)
if len(source.AdminFilter) > 0 && user.IsAdmin != sr.IsAdmin {
// Change existing admin flag only if AdminFilter option is set
user.IsAdmin = sr.IsAdmin
cols = append(cols, "is_admin")
}
if !user.IsAdmin && len(source.RestrictedFilter) > 0 && user.IsRestricted != sr.IsRestricted {
// Change existing restricted flag only if RestrictedFilter option is set
user.IsRestricted = sr.IsRestricted
cols = append(cols, "is_restricted")
}
if len(cols) > 0 {
err = user_model.UpdateUserCols(db.DefaultContext, user, cols...)
if err != nil {
return nil, err
}
}
}
}
if user != nil {
if isAttributeSSHPublicKeySet && asymkey_model.SynchronizePublicKeys(user, source.authSource, sr.SSHPublicKey) {
if err := asymkey_model.RewriteAllPublicKeys(); err != nil {
return user, err
}
}
} else {
// Fallback.
if len(sr.Username) == 0 {
sr.Username = userName
}
if len(sr.Mail) == 0 {
sr.Mail = fmt.Sprintf("%s@localhost", sr.Username)
}
user = &user_model.User{
LowerName: strings.ToLower(sr.Username),
Name: sr.Username,
FullName: composeFullName(sr.Name, sr.Surname, sr.Username),
Email: sr.Mail,
LoginType: source.authSource.Type,
LoginSource: source.authSource.ID,
LoginName: userName,
IsAdmin: sr.IsAdmin,
}
overwriteDefault := &user_model.CreateUserOverwriteOptions{
IsRestricted: util.OptionalBoolOf(sr.IsRestricted),
IsActive: util.OptionalBoolTrue,
}
err := user_model.CreateUser(user, overwriteDefault)
if err != nil {
return user, err
}
mailer.SendRegisterNotifyMail(user)
if isAttributeSSHPublicKeySet && asymkey_model.AddPublicKeysBySource(user, source.authSource, sr.SSHPublicKey) {
if err := asymkey_model.RewriteAllPublicKeys(); err != nil {
return user, err
}
}
if len(source.AttributeAvatar) > 0 {
if err := user_service.UploadAvatar(user, sr.Avatar); err != nil {
return user, err
}
}
}
if source.GroupsEnabled && (source.GroupTeamMap != "" || source.GroupTeamMapRemoval) {
groupTeamMapping, err := auth_module.UnmarshalGroupTeamMapping(source.GroupTeamMap)
if err != nil {
return user, err
}
if err := source_service.SyncGroupsToTeams(db.DefaultContext, user, sr.Groups, groupTeamMapping, source.GroupTeamMapRemoval); err != nil {
return user, err
}
}
return user, nil
}
// IsSkipLocalTwoFA returns if this source should skip local 2fa for password authentication
func (source *Source) IsSkipLocalTwoFA() bool {
return source.SkipLocalTwoFA
}