Attempt to fix the webauthn migration again - part 3 (#18770)

v208.go is seriously broken as it misses an ID() check. We need to no-op and remigrate all of the u2f keys.

See #18756

Signed-off-by: Andrew Thornton <art27@cantab.net>

models/migrations/v207.go

@@ -5,86 +5,11 @@
 package migrations
 
 import (
-	"crypto/elliptic"
-	"encoding/base64"
-	"strings"
-
-	"code.gitea.io/gitea/modules/timeutil"
-
-	"github.com/tstranex/u2f"
 	"xorm.io/xorm"
 )
 
 func addWebAuthnCred(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.Sync2(&webauthnCredential{}); err != nil {
-		return err
-	}
-
-	// 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(&regs)
-		if err != nil {
-			return err
-		}
-
-		for _, reg := range regs {
-			parsed := new(u2f.Registration)
-			err = parsed.UnmarshalBinary(reg.Raw)
-			if err != nil {
-				continue
-			}
-
-			c := &webauthnCredential{
-				ID:              reg.ID,
-				Name:            reg.Name,
-				LowerName:       strings.ToLower(reg.Name),
-				UserID:          reg.UserID,
-				CredentialID:    base64.RawStdEncoding.EncodeToString(parsed.KeyHandle),
-				PublicKey:       elliptic.Marshal(elliptic.P256(), parsed.PubKey.X, parsed.PubKey.Y),
-				AttestationType: "fido-u2f",
-				AAGUID:          []byte{},
-				SignCount:       reg.Counter,
-			}
-
-			_, err := x.Insert(c)
-			if err != nil {
-				return err
-			}
-		}
-
-		if len(regs) < 50 {
-			break
-		}
-		start += 50
-		regs = regs[:0]
-	}
+	// NO-OP Don't migrate here - let v210 do this.
 
 	return nil
 }