forgejo/models/migrations/v223.go
6543 09f2e1e1a2
WebAuthn CredentialID field needs to be increased in size (#20530) (#20555)
WebAuthn have updated their specification to set the maximum size of the
CredentialID to 1023 bytes. This is somewhat larger than our current
size and therefore we need to migrate.

The PR changes the struct to add CredentialIDBytes and migrates the CredentialID string
to the bytes field before another migration drops the old CredentialID field. Another migration
renames this field back.

Fix #20457

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: zeripath <art27@cantab.net>
2022-07-30 20:16:25 +02:00

103 lines
3.1 KiB
Go

// Copyright 2022 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 migrations
import (
"context"
"fmt"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
"xorm.io/xorm"
)
func renameCredentialIDBytes(x *xorm.Engine) error {
// This migration maybe rerun so that we should check if it has been run
credentialIDExist, err := x.Dialect().IsColumnExist(x.DB(), context.Background(), "webauthn_credential", "credential_id")
if err != nil {
return err
}
if credentialIDExist {
credentialIDBytesExists, err := x.Dialect().IsColumnExist(x.DB(), context.Background(), "webauthn_credential", "credential_id_bytes")
if err != nil {
return err
}
if !credentialIDBytesExists {
return nil
}
}
err = func() error {
// webauthnCredential table
type webauthnCredential struct {
ID int64 `xorm:"pk autoincr"`
Name string
LowerName string `xorm:"unique(s)"`
UserID int64 `xorm:"INDEX unique(s)"`
// Note the lack of INDEX here
CredentialIDBytes []byte `xorm:"VARBINARY(1024)"` // CredentialID is at most 1023 bytes as per spec released 20 July 2022
PublicKey []byte
AttestationType string
AAGUID []byte
SignCount uint32 `xorm:"BIGINT"`
CloneWarning bool
CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
}
sess := x.NewSession()
defer sess.Close()
if err := sess.Begin(); err != nil {
return err
}
if err := sess.Sync2(new(webauthnCredential)); err != nil {
return fmt.Errorf("error on Sync2: %v", err)
}
if credentialIDExist {
// if both errors and message exist, drop message at first
if err := dropTableColumns(sess, "webauthn_credential", "credential_id"); err != nil {
return err
}
}
switch {
case setting.Database.UseMySQL:
if _, err := sess.Exec("ALTER TABLE `webauthn_credential` CHANGE credential_id_bytes credential_id VARBINARY(1024)"); err != nil {
return err
}
case setting.Database.UseMSSQL:
if _, err := sess.Exec("sp_rename 'webauthn_credential.credential_id_bytes', 'credential_id', 'COLUMN'"); err != nil {
return err
}
default:
if _, err := sess.Exec("ALTER TABLE `webauthn_credential` RENAME COLUMN credential_id_bytes TO credential_id"); err != nil {
return err
}
}
return sess.Commit()
}()
if err != nil {
return err
}
// Create webauthnCredential table
type webauthnCredential struct {
ID int64 `xorm:"pk autoincr"`
Name string
LowerName string `xorm:"unique(s)"`
UserID int64 `xorm:"INDEX unique(s)"`
CredentialID []byte `xorm:"INDEX VARBINARY(1024)"` // CredentialID is at most 1023 bytes as per spec released 20 July 2022
PublicKey []byte
AttestationType string
AAGUID []byte
SignCount uint32 `xorm:"BIGINT"`
CloneWarning bool
CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
}
return x.Sync2(&webauthnCredential{})
}