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/v208.go

@@ -5,46 +5,10 @@
 package migrations
 
 import (
-	"encoding/base32"
-	"encoding/base64"
-
 	"xorm.io/xorm"
 )
 
 func useBase32HexForCredIDInWebAuthnCredential(x *xorm.Engine) error {
-	// Create webauthnCredential table
-	type webauthnCredential struct {
-		ID           int64  `xorm:"pk autoincr"`
-		CredentialID string `xorm:"INDEX VARCHAR(410)"`
-	}
-	if err := x.Sync2(&webauthnCredential{}); err != nil {
-		return err
-	}
-
-	var start int
-	regs := make([]*webauthnCredential, 0, 50)
-	for {
-		err := x.OrderBy("id").Limit(50, start).Find(&regs)
-		if err != nil {
-			return err
-		}
-
-		for _, reg := range regs {
-			credID, _ := base64.RawStdEncoding.DecodeString(reg.CredentialID)
-			reg.CredentialID = base32.HexEncoding.EncodeToString(credID)
-
-			_, err := x.Update(reg)
-			if err != nil {
-				return err
-			}
-		}
-
-		if len(regs) < 50 {
-			break
-		}
-		start += 50
-		regs = regs[:0]
-	}
-
+	// noop
 	return nil
 }