feat: fewer DB loads when linking credentials, add tracing

selfservice/flow/login/hook.go

@@ -10,7 +10,6 @@
 	"net/url"
 	"time"
 
-	"github.com/gofrs/uuid"
 	"github.com/pkg/errors"
 	"go.opentelemetry.io/otel/attribute"
 
@@ -393,7 +392,10 @@
 }
 
 // maybeLinkCredentials links the identity with the credentials of the inner context of the login flow.
-func (e *HookExecutor) maybeLinkCredentials(ctx context.Context, sess *session.Session, ident *identity.Identity, loginFlow *Flow) error {
+func (e *HookExecutor) maybeLinkCredentials(ctx context.Context, sess *session.Session, ident *identity.Identity, loginFlow *Flow) (err error) {
+	ctx, span := e.d.Tracer(ctx).Tracer().Start(ctx, "HookExecutor.PostLoginHook.maybeLinkCredentials")
+	defer otelx.End(span, &err)
+
 	if e.checkAAL(ctx, sess, loginFlow) != nil {
 		// we don't yet want to link credentials because the required AAL is not satisfied
 		return nil
@@ -406,7 +408,7 @@
 		return nil
 	}
 
-	if err = e.checkDuplicateCredentialsIdentifierMatch(ctx, ident.ID, lc.DuplicateIdentifier); err != nil {
+	if err = e.checkDuplicateCredentialsIdentifierMatch(ctx, ident, lc.DuplicateIdentifier); err != nil {
 		return err
 	}
 	strategy, err := e.d.AllLoginStrategies().Strategy(lc.CredentialsType)
@@ -431,11 +433,13 @@
 	return nil
 }
 
-func (e *HookExecutor) checkDuplicateCredentialsIdentifierMatch(ctx context.Context, identityID uuid.UUID, match string) error {
-	i, err := e.d.PrivilegedIdentityPool().GetIdentityConfidential(ctx, identityID)
-	if err != nil {
-		return err
+func (e *HookExecutor) checkDuplicateCredentialsIdentifierMatch(ctx context.Context, i *identity.Identity, match string) error {
+	if len(i.Credentials) == 0 {
+		if err := e.d.PrivilegedIdentityPool().HydrateIdentityAssociations(ctx, i, identity.ExpandCredentials); err != nil {
+			return err
+		}
 	}
+
 	for _, credentials := range i.Credentials {
 		for _, identifier := range credentials.Identifiers {
 			if identifier == match {

selfservice/strategy/oidc/strategy.go

@@ -778,10 +778,19 @@
 	return claims, nil
 }
 
-func (s *Strategy) linkCredentials(ctx context.Context, i *identity.Identity, tokens *identity.CredentialsOIDCEncryptedTokens, provider, subject, organization string) error {
-	if err := s.d.PrivilegedIdentityPool().HydrateIdentityAssociations(ctx, i, identity.ExpandCredentials); err != nil {
-		return err
+func (s *Strategy) linkCredentials(ctx context.Context, i *identity.Identity, tokens *identity.CredentialsOIDCEncryptedTokens, provider, subject, organization string) (err error) {
+	ctx, span := s.d.Tracer(ctx).Tracer().Start(ctx, "strategy.oidc.linkCredentials", trace.WithAttributes(
+		attribute.String("provider", provider),
+		// attribute.String("subject", subject), // PII
+		attribute.String("organization", organization)))
+	defer otelx.End(span, &err)
+
+	if len(i.Credentials) == 0 {
+		if err := s.d.PrivilegedIdentityPool().HydrateIdentityAssociations(ctx, i, identity.ExpandCredentials); err != nil {
+			return err
+		}
 	}
+
 	var conf identity.CredentialsOIDC
 	creds, err := i.ParseCredentials(s.ID(), &conf)
 	if errors.Is(err, herodot.ErrNotFound) {

selfservice/strategy/oidc/strategy_settings.go

@@ -518,7 +518,10 @@ func (s *Strategy) handleSettingsError(ctx context.Context, w http.ResponseWrite
 	return err
 }
 
-func (s *Strategy) Link(ctx context.Context, i *identity.Identity, credentialsConfig sqlxx.JSONRawMessage) error {
+func (s *Strategy) Link(ctx context.Context, i *identity.Identity, credentialsConfig sqlxx.JSONRawMessage) (err error) {
+	ctx, span := s.d.Tracer(ctx).Tracer().Start(ctx, "selfservice.strategy.oidc.Strategy.Link")
+	defer otelx.End(span, &err)
+
 	var credentialsOIDCConfig identity.CredentialsOIDC
 	if err := json.Unmarshal(credentialsConfig, &credentialsOIDCConfig); err != nil {
 		return err
@@ -540,8 +543,7 @@ func (s *Strategy) Link(ctx context.Context, i *identity.Identity, credentialsCo
 		return err
 	}
 
-	options := []identity.ManagerOption{identity.ManagerAllowWriteProtectedTraits}
-	if err := s.d.IdentityManager().Update(ctx, i, options...); err != nil {
+	if err := s.d.IdentityManager().Update(ctx, i, identity.ManagerAllowWriteProtectedTraits); err != nil {
 		return err
 	}