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// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package user
import (
"context"
"fmt"
"strings"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/util"
)
// ErrUserRedirectNotExist represents a "UserRedirectNotExist" kind of error.
type ErrUserRedirectNotExist struct {
Name string
}
// IsErrUserRedirectNotExist check if an error is an ErrUserRedirectNotExist.
func IsErrUserRedirectNotExist(err error) bool {
_, ok := err.(ErrUserRedirectNotExist)
return ok
}
func (err ErrUserRedirectNotExist) Error() string {
return fmt.Sprintf("user redirect does not exist [name: %s]", err.Name)
}
func (err ErrUserRedirectNotExist) Unwrap() error {
return util.ErrNotExist
}
// Redirect represents that a user name should be redirected to another
type Redirect struct {
ID int64 `xorm:"pk autoincr"`
LowerName string `xorm:"UNIQUE(s) INDEX NOT NULL"`
RedirectUserID int64 // userID to redirect to
}
// TableName provides the real table name
func (Redirect) TableName() string {
return "user_redirect"
}
func init() {
db.RegisterModel(new(Redirect))
}
// LookupUserRedirect look up userID if a user has a redirect name
func LookupUserRedirect(ctx context.Context, userName string) (int64, error) {
userName = strings.ToLower(userName)
redirect := &Redirect{LowerName: userName}
if has, err := db.GetEngine(ctx).Get(redirect); err != nil {
return 0, err
} else if !has {
return 0, ErrUserRedirectNotExist{Name: userName}
}
return redirect.RedirectUserID, nil
}
// NewUserRedirect create a new user redirect
func NewUserRedirect(ctx context.Context, ID int64, oldUserName, newUserName string) error {
oldUserName = strings.ToLower(oldUserName)
newUserName = strings.ToLower(newUserName)
if err := DeleteUserRedirect(ctx, oldUserName); err != nil {
return err
}
if err := DeleteUserRedirect(ctx, newUserName); err != nil {
return err
}
return db.Insert(ctx, &Redirect{
LowerName: oldUserName,
RedirectUserID: ID,
})
}
// DeleteUserRedirect delete any redirect from the specified user name to
// anything else
func DeleteUserRedirect(ctx context.Context, userName string) error {
userName = strings.ToLower(userName)
_, err := db.GetEngine(ctx).Delete(&Redirect{LowerName: userName})
return err
}
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