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gitea/services/auth/source/ldap/source_sync.go
zeripath 5d2e11eedb
Refactor: Move login out of models (#16199)
`models` does far too much. In particular it handles all `UserSignin`.

It shouldn't be responsible for calling LDAP, SMTP or PAM for signing in.

Therefore we should move this code out of `models`.

This code has to depend on `models` - therefore it belongs in `services`.

There is a package in `services` called `auth` and clearly this functionality belongs in there.

Plan:

- [x] Change `auth.Auth` to `auth.Method` - as they represent methods of authentication.
- [x] Move `models.UserSignIn` into `auth`
- [x] Move `models.ExternalUserLogin`
- [x] Move most of the `LoginVia*` methods to `auth` or subpackages
- [x] Move Resynchronize functionality to `auth`
  - Involved some restructuring of `models/ssh_key.go` to reduce the size of this massive file and simplify its files.
- [x] Move the rest of the LDAP functionality in to the ldap subpackage
- [x] Re-factor the login sources to express an interfaces `auth.Source`?
  - I've done this through some smaller interfaces Authenticator and Synchronizable - which would allow us to extend things in future
- [x] Now LDAP is out of models - need to think about modules/auth/ldap and I think all of that functionality might just be moveable
- [x] Similarly a lot Oauth2 functionality need not be in models too and should be moved to services/auth/source/oauth2
  - [x] modules/auth/oauth2/oauth2.go uses xorm... This is naughty - probably need to move this into models.
  - [x] models/oauth2.go - mostly should be in modules/auth/oauth2 or services/auth/source/oauth2 
- [x] More simplifications of login_source.go may need to be done
- Allow wiring in of notify registration -  *this can now easily be done - but I think we should do it in another PR*  - see #16178 
- More refactors...?
  - OpenID should probably become an auth Method but I think that can be left for another PR
  - Methods should also probably be cleaned up  - again another PR I think.
  - SSPI still needs more refactors.* Rename auth.Auth auth.Method
* Restructure ssh_key.go

- move functions from models/user.go that relate to ssh_key to ssh_key
- split ssh_key.go to try create clearer function domains for allow for
future refactors here.

Signed-off-by: Andrew Thornton <art27@cantab.net>
2021-07-24 11:16:34 +01:00

185 lines
5.6 KiB
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package ldap
import (
"context"
"fmt"
"strings"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/log"
)
// Sync causes this ldap source to synchronize its users with the db
func (source *Source) Sync(ctx context.Context, updateExisting bool) error {
log.Trace("Doing: SyncExternalUsers[%s]", source.loginSource.Name)
var existingUsers []int64
isAttributeSSHPublicKeySet := len(strings.TrimSpace(source.AttributeSSHPublicKey)) > 0
var sshKeysNeedUpdate bool
// Find all users with this login type - FIXME: Should this be an iterator?
users, err := models.GetUsersBySource(source.loginSource)
if err != nil {
log.Error("SyncExternalUsers: %v", err)
return err
}
select {
case <-ctx.Done():
log.Warn("SyncExternalUsers: Cancelled before update of %s", source.loginSource.Name)
return models.ErrCancelledf("Before update of %s", source.loginSource.Name)
default:
}
sr, err := source.SearchEntries()
if err != nil {
log.Error("SyncExternalUsers LDAP source failure [%s], skipped", source.loginSource.Name)
return nil
}
if len(sr) == 0 {
if !source.AllowDeactivateAll {
log.Error("LDAP search found no entries but did not report an error. Refusing to deactivate all users")
return nil
}
log.Warn("LDAP search found no entries but did not report an error. All users will be deactivated as per settings")
}
for _, su := range sr {
select {
case <-ctx.Done():
log.Warn("SyncExternalUsers: Cancelled at update of %s before completed update of users", source.loginSource.Name)
// Rewrite authorized_keys file if LDAP Public SSH Key attribute is set and any key was added or removed
if sshKeysNeedUpdate {
err = models.RewriteAllPublicKeys()
if err != nil {
log.Error("RewriteAllPublicKeys: %v", err)
}
}
return models.ErrCancelledf("During update of %s before completed update of users", source.loginSource.Name)
default:
}
if len(su.Username) == 0 {
continue
}
if len(su.Mail) == 0 {
su.Mail = fmt.Sprintf("%s@localhost", su.Username)
}
var usr *models.User
// Search for existing user
for _, du := range users {
if du.LowerName == strings.ToLower(su.Username) {
usr = du
break
}
}
fullName := composeFullName(su.Name, su.Surname, su.Username)
// If no existing user found, create one
if usr == nil {
log.Trace("SyncExternalUsers[%s]: Creating user %s", source.loginSource.Name, su.Username)
usr = &models.User{
LowerName: strings.ToLower(su.Username),
Name: su.Username,
FullName: fullName,
LoginType: source.loginSource.Type,
LoginSource: source.loginSource.ID,
LoginName: su.Username,
Email: su.Mail,
IsAdmin: su.IsAdmin,
IsRestricted: su.IsRestricted,
IsActive: true,
}
err = models.CreateUser(usr)
if err != nil {
log.Error("SyncExternalUsers[%s]: Error creating user %s: %v", source.loginSource.Name, su.Username, err)
} else if isAttributeSSHPublicKeySet {
log.Trace("SyncExternalUsers[%s]: Adding LDAP Public SSH Keys for user %s", source.loginSource.Name, usr.Name)
if models.AddPublicKeysBySource(usr, source.loginSource, su.SSHPublicKey) {
sshKeysNeedUpdate = true
}
}
} else if updateExisting {
existingUsers = append(existingUsers, usr.ID)
// Synchronize SSH Public Key if that attribute is set
if isAttributeSSHPublicKeySet && models.SynchronizePublicKeys(usr, source.loginSource, su.SSHPublicKey) {
sshKeysNeedUpdate = true
}
// Check if user data has changed
if (len(source.AdminFilter) > 0 && usr.IsAdmin != su.IsAdmin) ||
(len(source.RestrictedFilter) > 0 && usr.IsRestricted != su.IsRestricted) ||
!strings.EqualFold(usr.Email, su.Mail) ||
usr.FullName != fullName ||
!usr.IsActive {
log.Trace("SyncExternalUsers[%s]: Updating user %s", source.loginSource.Name, usr.Name)
usr.FullName = fullName
usr.Email = su.Mail
// Change existing admin flag only if AdminFilter option is set
if len(source.AdminFilter) > 0 {
usr.IsAdmin = su.IsAdmin
}
// Change existing restricted flag only if RestrictedFilter option is set
if !usr.IsAdmin && len(source.RestrictedFilter) > 0 {
usr.IsRestricted = su.IsRestricted
}
usr.IsActive = true
err = models.UpdateUserCols(usr, "full_name", "email", "is_admin", "is_restricted", "is_active")
if err != nil {
log.Error("SyncExternalUsers[%s]: Error updating user %s: %v", source.loginSource.Name, usr.Name, err)
}
}
}
}
// Rewrite authorized_keys file if LDAP Public SSH Key attribute is set and any key was added or removed
if sshKeysNeedUpdate {
err = models.RewriteAllPublicKeys()
if err != nil {
log.Error("RewriteAllPublicKeys: %v", err)
}
}
select {
case <-ctx.Done():
log.Warn("SyncExternalUsers: Cancelled during update of %s before delete users", source.loginSource.Name)
return models.ErrCancelledf("During update of %s before delete users", source.loginSource.Name)
default:
}
// Deactivate users not present in LDAP
if updateExisting {
for _, usr := range users {
found := false
for _, uid := range existingUsers {
if usr.ID == uid {
found = true
break
}
}
if !found {
log.Trace("SyncExternalUsers[%s]: Deactivating user %s", source.loginSource.Name, usr.Name)
usr.IsActive = false
err = models.UpdateUserCols(usr, "is_active")
if err != nil {
log.Error("SyncExternalUsers[%s]: Error deactivating user %s: %v", source.loginSource.Name, usr.Name, err)
}
}
}
}
return nil
}