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// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package user
import (
"context"
"fmt"
"os"
"strings"
"time"
"code.gitea.io/gitea/models"
asymkey_model "code.gitea.io/gitea/models/asymkey"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/models/organization"
packages_model "code.gitea.io/gitea/models/packages"
repo_model "code.gitea.io/gitea/models/repo"
system_model "code.gitea.io/gitea/models/system"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/eventsource"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/storage"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/services/agit"
org_service "code.gitea.io/gitea/services/org"
"code.gitea.io/gitea/services/packages"
container_service "code.gitea.io/gitea/services/packages/container"
repo_service "code.gitea.io/gitea/services/repository"
)
// RenameUser renames a user
func RenameUser(ctx context.Context, u *user_model.User, newUserName string) error {
// Non-local users are not allowed to change their username.
if !u.IsOrganization() && !u.IsLocal() {
return user_model.ErrUserIsNotLocal{
UID: u.ID,
Name: u.Name,
}
}
if newUserName == u.Name {
return user_model.ErrUsernameNotChanged{
UID: u.ID,
Name: u.Name,
}
}
if err := user_model.IsUsableUsername(newUserName); err != nil {
return err
}
onlyCapitalization := strings.EqualFold(newUserName, u.Name)
oldUserName := u.Name
if onlyCapitalization {
u.Name = newUserName
if err := user_model.UpdateUserCols(ctx, u, "name"); err != nil {
u.Name = oldUserName
return err
}
return repo_model.UpdateRepositoryOwnerNames(ctx, u.ID, newUserName)
}
ctx, committer, err := db.TxContext(ctx)
if err != nil {
return err
}
defer committer.Close()
isExist, err := user_model.IsUserExist(ctx, u.ID, newUserName)
if err != nil {
return err
}
if isExist {
return user_model.ErrUserAlreadyExist{
Name: newUserName,
}
}
if err = repo_model.UpdateRepositoryOwnerName(ctx, oldUserName, newUserName); err != nil {
return err
}
if err = user_model.NewUserRedirect(ctx, u.ID, oldUserName, newUserName); err != nil {
return err
}
if err := agit.UserNameChanged(ctx, u, newUserName); err != nil {
return err
}
if err := container_service.UpdateRepositoryNames(ctx, u, newUserName); err != nil {
return err
}
u.Name = newUserName
u.LowerName = strings.ToLower(newUserName)
if err := user_model.UpdateUserCols(ctx, u, "name", "lower_name"); err != nil {
u.Name = oldUserName
u.LowerName = strings.ToLower(oldUserName)
return err
}
// Do not fail if directory does not exist
if err = util.Rename(user_model.UserPath(oldUserName), user_model.UserPath(newUserName)); err != nil && !os.IsNotExist(err) {
u.Name = oldUserName
u.LowerName = strings.ToLower(oldUserName)
return fmt.Errorf("rename user directory: %w", err)
}
if err = committer.Commit(); err != nil {
u.Name = oldUserName
u.LowerName = strings.ToLower(oldUserName)
if err2 := util.Rename(user_model.UserPath(newUserName), user_model.UserPath(oldUserName)); err2 != nil && !os.IsNotExist(err2) {
log.Critical("Unable to rollback directory change during failed username change from: %s to: %s. DB Error: %v. Filesystem Error: %v", oldUserName, newUserName, err, err2)
return fmt.Errorf("failed to rollback directory change during failed username change from: %s to: %s. DB Error: %w. Filesystem Error: %v", oldUserName, newUserName, err, err2)
}
return err
}
return nil
}
// DeleteUser completely and permanently deletes everything of a user,
// but issues/comments/pulls will be kept and shown as someone has been deleted,
// unless the user is younger than USER_DELETE_WITH_COMMENTS_MAX_DAYS.
func DeleteUser(ctx context.Context, u *user_model.User, purge bool) error {
if u.IsOrganization() {
return fmt.Errorf("%s is an organization not a user", u.Name)
}
if purge {
// Disable the user first
// NOTE: This is deliberately not within a transaction as it must disable the user immediately to prevent any further action by the user to be purged.
if err := user_model.UpdateUserCols(ctx, &user_model.User{
ID: u.ID,
IsActive: false,
IsRestricted: true,
IsAdmin: false,
ProhibitLogin: true,
Passwd: "",
Salt: "",
PasswdHashAlgo: "",
MaxRepoCreation: 0,
}, "is_active", "is_restricted", "is_admin", "prohibit_login", "max_repo_creation", "passwd", "salt", "passwd_hash_algo"); err != nil {
return fmt.Errorf("unable to disable user: %s[%d] prior to purge. UpdateUserCols: %w", u.Name, u.ID, err)
}
// Force any logged in sessions to log out
// FIXME: We also need to tell the session manager to log them out too.
eventsource.GetManager().SendMessage(u.ID, &eventsource.Event{
Name: "logout",
})
// Delete all repos belonging to this user
// Now this is not within a transaction because there are internal transactions within the DeleteRepository
// BUT: the db will still be consistent even if a number of repos have already been deleted.
// And in fact we want to capture any repositories that are being created in other transactions in the meantime
//
// An alternative option here would be write a DeleteAllRepositoriesForUserID function which would delete all of the repos
// but such a function would likely get out of date
err := repo_service.DeleteOwnerRepositoriesDirectly(ctx, u)
if err != nil {
return err
}
// Remove from Organizations and delete last owner organizations
// Now this is not within a transaction because there are internal transactions within the DeleteOrganization
// BUT: the db will still be consistent even if a number of organizations memberships and organizations have already been deleted
// And in fact we want to capture any organization additions that are being created in other transactions in the meantime
//
// An alternative option here would be write a function which would delete all organizations but it seems
// but such a function would likely get out of date
for {
orgs, err := organization.FindOrgs(organization.FindOrgOptions{
ListOptions: db.ListOptions{
PageSize: repo_model.RepositoryListDefaultPageSize,
Page: 1,
},
UserID: u.ID,
IncludePrivate: true,
})
if err != nil {
return fmt.Errorf("unable to find org list for %s[%d]. Error: %w", u.Name, u.ID, err)
}
if len(orgs) == 0 {
break
}
for _, org := range orgs {
if err := models.RemoveOrgUser(org.ID, u.ID); err != nil {
if organization.IsErrLastOrgOwner(err) {
err = org_service.DeleteOrganization(ctx, org, true)
if err != nil {
return fmt.Errorf("unable to delete organization %d: %w", org.ID, err)
}
}
if err != nil {
return fmt.Errorf("unable to remove user %s[%d] from org %s[%d]. Error: %w", u.Name, u.ID, org.Name, org.ID, err)
}
}
}
}
// Delete Packages
if setting.Packages.Enabled {
if _, err := packages.RemoveAllPackages(ctx, u.ID); err != nil {
return err
}
}
}
ctx, committer, err := db.TxContext(db.DefaultContext)
if err != nil {
return err
}
defer committer.Close()
// Note: A user owns any repository or belongs to any organization
// cannot perform delete operation. This causes a race with the purge above
// however consistency requires that we ensure that this is the case
// Check ownership of repository.
count, err := repo_model.CountRepositories(ctx, repo_model.CountRepositoryOptions{OwnerID: u.ID})
if err != nil {
return fmt.Errorf("GetRepositoryCount: %w", err)
} else if count > 0 {
return models.ErrUserOwnRepos{UID: u.ID}
}
// Check membership of organization.
count, err = organization.GetOrganizationCount(ctx, u)
if err != nil {
return fmt.Errorf("GetOrganizationCount: %w", err)
} else if count > 0 {
return models.ErrUserHasOrgs{UID: u.ID}
}
// Check ownership of packages.
if ownsPackages, err := packages_model.HasOwnerPackages(ctx, u.ID); err != nil {
return fmt.Errorf("HasOwnerPackages: %w", err)
} else if ownsPackages {
return models.ErrUserOwnPackages{UID: u.ID}
}
if err := deleteUser(ctx, u, purge); err != nil {
return fmt.Errorf("DeleteUser: %w", err)
}
if err := committer.Commit(); err != nil {
return err
}
committer.Close()
if err = asymkey_model.RewriteAllPublicKeys(ctx); err != nil {
return err
}
if err = asymkey_model.RewriteAllPrincipalKeys(ctx); err != nil {
return err
}
// Note: There are something just cannot be roll back,
// so just keep error logs of those operations.
path := user_model.UserPath(u.Name)
if err := util.RemoveAll(path); err != nil {
err = fmt.Errorf("Failed to RemoveAll %s: %w", path, err)
_ = system_model.CreateNotice(ctx, system_model.NoticeTask, fmt.Sprintf("delete user '%s': %v", u.Name, err))
return err
}
if u.Avatar != "" {
avatarPath := u.CustomAvatarRelativePath()
if err := storage.Avatars.Delete(avatarPath); err != nil {
err = fmt.Errorf("Failed to remove %s: %w", avatarPath, err)
_ = system_model.CreateNotice(ctx, system_model.NoticeTask, fmt.Sprintf("delete user '%s': %v", u.Name, err))
return err
}
}
return nil
}
// DeleteInactiveUsers deletes all inactive users and email addresses.
func DeleteInactiveUsers(ctx context.Context, olderThan time.Duration) error {
users, err := user_model.GetInactiveUsers(ctx, olderThan)
if err != nil {
return err
}
// FIXME: should only update authorized_keys file once after all deletions.
for _, u := range users {
select {
case <-ctx.Done():
return db.ErrCancelledf("Before delete inactive user %s", u.Name)
default:
}
if err := DeleteUser(ctx, u, false); err != nil {
// Ignore users that were set inactive by admin.
if models.IsErrUserOwnRepos(err) || models.IsErrUserHasOrgs(err) || models.IsErrUserOwnPackages(err) {
continue
}
return err
}
}
return user_model.DeleteInactiveEmailAddresses(ctx)
}
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