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https://github.com/go-gitea/gitea
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32599bf060
Unfortunately credentialIDs in u2f are 255 bytes long which with base32 encoding becomes 408 bytes. The default size of a xorm string field is only a VARCHAR(255) This problem is not apparent on SQLite because strings get mapped to TEXT there. Fix #18727 Signed-off-by: Andrew Thornton <art27@cantab.net>
90 lines
2.3 KiB
Go
90 lines
2.3 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package migrations
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import (
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"crypto/elliptic"
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"encoding/base64"
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"strings"
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"code.gitea.io/gitea/modules/timeutil"
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"github.com/tstranex/u2f"
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"xorm.io/xorm"
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)
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func addWebAuthnCred(x *xorm.Engine) error {
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// Create webauthnCredential table
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type webauthnCredential struct {
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ID int64 `xorm:"pk autoincr"`
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Name string
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LowerName string `xorm:"unique(s)"`
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UserID int64 `xorm:"INDEX unique(s)"`
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CredentialID string `xorm:"INDEX VARCHAR(410)"` // CredentalID in U2F is at most 255bytes / 5 * 8 = 408 - add a few extra characters for safety
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PublicKey []byte
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AttestationType string
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AAGUID []byte
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SignCount uint32 `xorm:"BIGINT"`
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CloneWarning bool
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CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
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UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
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}
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if err := x.Sync2(&webauthnCredential{}); err != nil {
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return err
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}
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// Now migrate the old u2f registrations to the new format
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type u2fRegistration struct {
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ID int64 `xorm:"pk autoincr"`
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Name string
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UserID int64 `xorm:"INDEX"`
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Raw []byte
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Counter uint32 `xorm:"BIGINT"`
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CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
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UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
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}
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var start int
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regs := make([]*u2fRegistration, 0, 50)
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for {
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err := x.OrderBy("id").Limit(50, start).Find(®s)
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if err != nil {
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return err
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}
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for _, reg := range regs {
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parsed := new(u2f.Registration)
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err = parsed.UnmarshalBinary(reg.Raw)
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if err != nil {
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continue
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}
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c := &webauthnCredential{
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ID: reg.ID,
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Name: reg.Name,
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LowerName: strings.ToLower(reg.Name),
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UserID: reg.UserID,
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CredentialID: base64.RawStdEncoding.EncodeToString(parsed.KeyHandle),
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PublicKey: elliptic.Marshal(elliptic.P256(), parsed.PubKey.X, parsed.PubKey.Y),
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AttestationType: "fido-u2f",
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AAGUID: []byte{},
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SignCount: reg.Counter,
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}
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_, err := x.Insert(c)
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if err != nil {
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return err
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}
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}
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if len(regs) < 50 {
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break
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}
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start += 50
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regs = regs[:0]
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}
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return nil
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}
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