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gitea/models/migrations/v222.go
zeripath e819da0837
WebAuthn CredentialID field needs to be increased in size (#20530)
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>
2022-07-30 15:25:26 +02:00

65 lines
2.0 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/timeutil"
"xorm.io/xorm"
)
func dropOldCredentialIDColumn(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 {
// Column is already non-extant
return nil
}
credentialIDBytesExists, err := x.Dialect().IsColumnExist(x.DB(), context.Background(), "webauthn_credential", "credential_id_bytes")
if err != nil {
return err
}
if !credentialIDBytesExists {
// looks like 221 hasn't properly run
return fmt.Errorf("webauthn_credential does not have a credential_id_bytes column... it is not safe to run this migration")
}
// 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 string `xorm:"INDEX VARCHAR(410)"`
// Note the lack of the INDEX on CredentialIDBytes - we will add this in v223.go
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"`
}
if err := x.Sync2(&webauthnCredential{}); err != nil {
return err
}
// Drop the old credential ID
sess := x.NewSession()
defer sess.Close()
if err := dropTableColumns(sess, "webauthn_credential", "credential_id"); err != nil {
return fmt.Errorf("unable to drop old credentialID column: %w", err)
}
return sess.Commit()
}