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// 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"
"sort"
"strings"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/log"
user_service "code.gitea.io/gitea/services/user"
)
// 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 []int
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 db.ErrCancelledf("Before update of %s", source.loginSource.Name)
default:
}
sort.Slice(users, func(i, j int) bool {
return users[i].LowerName < users[j].LowerName
})
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")
}
sort.Slice(sr, func(i, j int) bool {
return sr[i].LowerName < sr[j].LowerName
})
userPos := 0
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 db.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
for userPos < len(users) && users[userPos].LowerName < su.LowerName {
userPos++
}
if userPos < len(users) && users[userPos].LowerName == su.LowerName {
usr = users[userPos]
existingUsers = append(existingUsers, userPos)
}
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: su.LowerName,
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)
}
if err == nil && 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
}
}
if err == nil && len(source.AttributeAvatar) > 0 {
_ = user_service.UploadAvatar(usr, su.Avatar)
}
} else if updateExisting {
// 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(db.DefaultContext, 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)
}
}
if usr.IsUploadAvatarChanged(su.Avatar) {
if err == nil && len(source.AttributeAvatar) > 0 {
_ = user_service.UploadAvatar(usr, su.Avatar)
}
}
}
}
// 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 db.ErrCancelledf("During update of %s before delete users", source.loginSource.Name)
default:
}
// Deactivate users not present in LDAP
if updateExisting {
existPos := 0
for i, usr := range users {
for existPos < len(existingUsers) && i > existingUsers[existPos] {
existPos++
}
if usr.IsActive && (existPos >= len(existingUsers) || i < existingUsers[existPos]) {
log.Trace("SyncExternalUsers[%s]: Deactivating user %s", source.loginSource.Name, usr.Name)
usr.IsActive = false
err = models.UpdateUserCols(db.DefaultContext, usr, "is_active")
if err != nil {
log.Error("SyncExternalUsers[%s]: Error deactivating user %s: %v", source.loginSource.Name, usr.Name, err)
}
}
}
}
return nil
}
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