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// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package ldap
import (
"context"
"fmt"
"strings"
asymkey_model "code.gitea.io/gitea/models/asymkey"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/models/organization"
user_model "code.gitea.io/gitea/models/user"
auth_module "code.gitea.io/gitea/modules/auth"
"code.gitea.io/gitea/modules/container"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/optional"
source_service "code.gitea.io/gitea/services/auth/source"
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.authSource.Name)
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 := user_model.GetUsersBySource(ctx, source.authSource)
if err != nil {
log.Error("SyncExternalUsers: %v", err)
return err
}
select {
case <-ctx.Done():
log.Warn("SyncExternalUsers: Cancelled before update of %s", source.authSource.Name)
return db.ErrCancelledf("Before update of %s", source.authSource.Name)
default:
}
usernameUsers := make(map[string]*user_model.User, len(users))
mailUsers := make(map[string]*user_model.User, len(users))
keepActiveUsers := make(container.Set[int64])
for _, u := range users {
usernameUsers[u.LowerName] = u
mailUsers[strings.ToLower(u.Email)] = u
}
sr, err := source.SearchEntries()
if err != nil {
log.Error("SyncExternalUsers LDAP source failure [%s], skipped", source.authSource.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")
}
orgCache := make(map[string]*organization.Organization)
teamCache := make(map[string]*organization.Team)
groupTeamMapping, err := auth_module.UnmarshalGroupTeamMapping(source.GroupTeamMap)
if err != nil {
return err
}
for _, su := range sr {
select {
case <-ctx.Done():
log.Warn("SyncExternalUsers: Cancelled at update of %s before completed update of users", source.authSource.Name)
// Rewrite authorized_keys file if LDAP Public SSH Key attribute is set and any key was added or removed
if sshKeysNeedUpdate {
err = asymkey_model.RewriteAllPublicKeys(ctx)
if err != nil {
log.Error("RewriteAllPublicKeys: %v", err)
}
}
return db.ErrCancelledf("During update of %s before completed update of users", source.authSource.Name)
default:
}
if len(su.Username) == 0 && len(su.Mail) == 0 {
continue
}
var usr *user_model.User
if len(su.Username) > 0 {
usr = usernameUsers[su.LowerName]
}
if usr == nil && len(su.Mail) > 0 {
usr = mailUsers[strings.ToLower(su.Mail)]
}
if usr != nil {
keepActiveUsers.Add(usr.ID)
} else if len(su.Username) == 0 {
// we cannot create the user if su.Username is empty
continue
}
if len(su.Mail) == 0 {
domainName := source.DefaultDomainName
if len(domainName) == 0 {
domainName = "localhost.local"
}
su.Mail = fmt.Sprintf("%s@%s", su.Username, domainName)
}
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.authSource.Name, su.Username)
usr = &user_model.User{
LowerName: su.LowerName,
Name: su.Username,
FullName: fullName,
LoginType: source.authSource.Type,
LoginSource: source.authSource.ID,
LoginName: su.Username,
Email: su.Mail,
IsAdmin: su.IsAdmin,
}
overwriteDefault := &user_model.CreateUserOverwriteOptions{
IsRestricted: optional.Some(su.IsRestricted),
IsActive: optional.Some(true),
}
err = user_model.CreateUser(ctx, usr, overwriteDefault)
if err != nil {
log.Error("SyncExternalUsers[%s]: Error creating user %s: %v", source.authSource.Name, su.Username, err)
}
if err == nil && isAttributeSSHPublicKeySet {
log.Trace("SyncExternalUsers[%s]: Adding LDAP Public SSH Keys for user %s", source.authSource.Name, usr.Name)
if asymkey_model.AddPublicKeysBySource(ctx, usr, source.authSource, su.SSHPublicKey) {
sshKeysNeedUpdate = true
}
}
if err == nil && len(source.AttributeAvatar) > 0 {
_ = user_service.UploadAvatar(ctx, usr, su.Avatar)
}
} else if updateExisting {
// Synchronize SSH Public Key if that attribute is set
if isAttributeSSHPublicKeySet && asymkey_model.SynchronizePublicKeys(ctx, usr, source.authSource, 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.authSource.Name, usr.Name)
opts := &user_service.UpdateOptions{
FullName: optional.Some(fullName),
IsActive: optional.Some(true),
}
if source.AdminFilter != "" {
opts.IsAdmin = optional.Some(su.IsAdmin)
}
// Change existing restricted flag only if RestrictedFilter option is set
if !su.IsAdmin && source.RestrictedFilter != "" {
opts.IsRestricted = optional.Some(su.IsRestricted)
}
if err := user_service.UpdateUser(ctx, usr, opts); err != nil {
log.Error("SyncExternalUsers[%s]: Error updating user %s: %v", source.authSource.Name, usr.Name, err)
}
if err := user_service.ReplacePrimaryEmailAddress(ctx, usr, su.Mail); err != nil {
log.Error("SyncExternalUsers[%s]: Error updating user %s primary email %s: %v", source.authSource.Name, usr.Name, su.Mail, err)
}
}
if usr.IsUploadAvatarChanged(su.Avatar) {
if err == nil && len(source.AttributeAvatar) > 0 {
_ = user_service.UploadAvatar(ctx, usr, su.Avatar)
}
}
}
// Synchronize LDAP groups with organization and team memberships
if source.GroupsEnabled && (source.GroupTeamMap != "" || source.GroupTeamMapRemoval) {
if err := source_service.SyncGroupsToTeamsCached(ctx, usr, su.Groups, groupTeamMapping, source.GroupTeamMapRemoval, orgCache, teamCache); err != nil {
log.Error("SyncGroupsToTeamsCached: %v", err)
}
}
}
// Rewrite authorized_keys file if LDAP Public SSH Key attribute is set and any key was added or removed
if sshKeysNeedUpdate {
err = asymkey_model.RewriteAllPublicKeys(ctx)
if err != nil {
log.Error("RewriteAllPublicKeys: %v", err)
}
}
select {
case <-ctx.Done():
log.Warn("SyncExternalUsers: Cancelled during update of %s before delete users", source.authSource.Name)
return db.ErrCancelledf("During update of %s before delete users", source.authSource.Name)
default:
}
// Deactivate users not present in LDAP
if updateExisting {
for _, usr := range users {
if keepActiveUsers.Contains(usr.ID) {
continue
}
log.Trace("SyncExternalUsers[%s]: Deactivating user %s", source.authSource.Name, usr.Name)
opts := &user_service.UpdateOptions{
IsActive: optional.Some(false),
}
if err := user_service.UpdateUser(ctx, usr, opts); err != nil {
log.Error("SyncExternalUsers[%s]: Error deactivating user %s: %v", source.authSource.Name, usr.Name, err)
}
}
}
return nil
}
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