diff options
Diffstat (limited to '')
| -rw-r--r-- | models/migrations/v1_16/v210.go | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/models/migrations/v1_16/v210.go b/models/migrations/v1_16/v210.go new file mode 100644 index 0000000..db45b11 --- /dev/null +++ b/models/migrations/v1_16/v210.go @@ -0,0 +1,177 @@ +// Copyright 2022 The Gitea Authors. All rights reserved. +// SPDX-License-Identifier: MIT + +package v1_16 //nolint + +import ( + "crypto/ecdh" + "encoding/base32" + "errors" + "fmt" + "strings" + + "code.gitea.io/gitea/modules/timeutil" + + "xorm.io/xorm" + "xorm.io/xorm/schemas" +) + +func parseU2FRegistration(raw []byte) (pubKey *ecdh.PublicKey, keyHandle []byte, err error) { + if len(raw) < 69 { + return nil, nil, errors.New("data is too short") + } + if raw[0] != 0x05 { + return nil, nil, errors.New("invalid reserved byte") + } + raw = raw[1:] + + pubKey, err = ecdh.P256().NewPublicKey(raw[:65]) + if err != nil { + return nil, nil, err + } + raw = raw[65:] + + khLen := int(raw[0]) + if len(raw) < khLen { + return nil, nil, errors.New("invalid key handle") + } + raw = raw[1:] + keyHandle = raw[:khLen] + + return pubKey, keyHandle, nil +} + +// v208 migration was completely broken +func RemigrateU2FCredentials(x *xorm.Engine) error { + // 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)"` // CredentalID in U2F is at most 255bytes / 5 * 8 = 408 - add a few extra characters for safety + 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.Sync(&webauthnCredential{}); err != nil { + return err + } + + switch x.Dialect().URI().DBType { + case schemas.MYSQL: + _, err := x.Exec("ALTER TABLE webauthn_credential MODIFY COLUMN credential_id VARCHAR(410)") + if err != nil { + return err + } + case schemas.POSTGRES: + _, err := x.Exec("ALTER TABLE webauthn_credential ALTER COLUMN credential_id TYPE VARCHAR(410)") + if err != nil { + return err + } + default: + // SQLite doesn't support ALTER COLUMN, and it already makes String _TEXT_ by default so no migration needed + // nor is there any need to re-migrate + } + + exist, err := x.IsTableExist("u2f_registration") + if err != nil { + return err + } + if !exist { + return nil + } + + // Now migrate the old u2f registrations to the new format + type u2fRegistration struct { + ID int64 `xorm:"pk autoincr"` + Name string + UserID int64 `xorm:"INDEX"` + Raw []byte + Counter uint32 `xorm:"BIGINT"` + CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"` + UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"` + } + + var start int + regs := make([]*u2fRegistration, 0, 50) + for { + err := x.OrderBy("id").Limit(50, start).Find(®s) + if err != nil { + return err + } + + err = func() error { + sess := x.NewSession() + defer sess.Close() + if err := sess.Begin(); err != nil { + return fmt.Errorf("unable to allow start session. Error: %w", err) + } + for _, reg := range regs { + pubKey, keyHandle, err := parseU2FRegistration(reg.Raw) + if err != nil { + continue + } + remigrated := &webauthnCredential{ + ID: reg.ID, + Name: reg.Name, + LowerName: strings.ToLower(reg.Name), + UserID: reg.UserID, + CredentialID: base32.HexEncoding.EncodeToString(keyHandle), + PublicKey: pubKey.Bytes(), + AttestationType: "fido-u2f", + AAGUID: []byte{}, + SignCount: reg.Counter, + UpdatedUnix: reg.UpdatedUnix, + CreatedUnix: reg.CreatedUnix, + } + + has, err := sess.ID(reg.ID).Get(new(webauthnCredential)) + if err != nil { + return fmt.Errorf("unable to get webauthn_credential[%d]. Error: %w", reg.ID, err) + } + if !has { + has, err := sess.Where("`lower_name`=?", remigrated.LowerName).And("`user_id`=?", remigrated.UserID).Exist(new(webauthnCredential)) + if err != nil { + return fmt.Errorf("unable to check webauthn_credential[lower_name: %s, user_id: %d]. Error: %w", remigrated.LowerName, remigrated.UserID, err) + } + if !has { + _, err = sess.Insert(remigrated) + if err != nil { + return fmt.Errorf("unable to (re)insert webauthn_credential[%d]. Error: %w", reg.ID, err) + } + + continue + } + } + + _, err = sess.ID(remigrated.ID).AllCols().Update(remigrated) + if err != nil { + return fmt.Errorf("unable to update webauthn_credential[%d]. Error: %w", reg.ID, err) + } + } + return sess.Commit() + }() + if err != nil { + return err + } + + if len(regs) < 50 { + break + } + start += 50 + regs = regs[:0] + } + + if x.Dialect().URI().DBType == schemas.POSTGRES { + if _, err := x.Exec("SELECT setval('webauthn_credential_id_seq', COALESCE((SELECT MAX(id)+1 FROM `webauthn_credential`), 1), false)"); err != nil { + return err + } + } + + return nil +} |