feat: session v2 passkey authentication (#5952)

internal/command/session_passkey.go

@@ -0,0 +1,84 @@
+package command
+
+import (
+	"context"
+	"encoding/json"
+
+	"github.com/zitadel/zitadel/internal/domain"
+	caos_errs "github.com/zitadel/zitadel/internal/errors"
+)
+
+type humanPasskeys struct {
+	human  *domain.Human
+	tokens []*domain.WebAuthNToken
+}
+
+func (s *SessionCommands) getHumanPasskeys(ctx context.Context) (*humanPasskeys, error) {
+	humanWritemodel, err := s.gethumanWriteModel(ctx)
+	if err != nil {
+		return nil, err
+	}
+	tokenReadModel, err := s.getHumanPasswordlessTokenReadModel(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return &humanPasskeys{
+		human:  writeModelToHuman(humanWritemodel),
+		tokens: readModelToPasswordlessTokens(tokenReadModel),
+	}, nil
+}
+
+func (s *SessionCommands) getHumanPasswordlessTokenReadModel(ctx context.Context) (*HumanPasswordlessTokensReadModel, error) {
+	tokenReadModel := NewHumanPasswordlessTokensReadModel(s.sessionWriteModel.UserID, s.sessionWriteModel.ResourceOwner)
+	err := s.eventstore.FilterToQueryReducer(ctx, tokenReadModel)
+	if err != nil {
+		return nil, err
+	}
+	return tokenReadModel, nil
+}
+
+func (c *Commands) CreatePasskeyChallenge(userVerification domain.UserVerificationRequirement, dst json.Unmarshaler) SessionCommand {
+	return func(ctx context.Context, cmd *SessionCommands) error {
+		humanPasskeys, err := cmd.getHumanPasskeys(ctx)
+		if err != nil {
+			return err
+		}
+		webAuthNLogin, err := c.webauthnConfig.BeginLogin(ctx, humanPasskeys.human, userVerification, humanPasskeys.tokens...)
+		if err != nil {
+			return err
+		}
+		if err = json.Unmarshal(webAuthNLogin.CredentialAssertionData, dst); err != nil {
+			return caos_errs.ThrowInternal(err, "COMMAND-Yah6A", "Errors.Internal")
+		}
+
+		cmd.sessionWriteModel.PasskeyChallenged(ctx, webAuthNLogin.Challenge, webAuthNLogin.AllowedCredentialIDs, webAuthNLogin.UserVerification)
+		return nil
+	}
+}
+
+func (c *Commands) CheckPasskey(credentialAssertionData json.Marshaler) SessionCommand {
+	return func(ctx context.Context, cmd *SessionCommands) error {
+		credentialAssertionData, err := json.Marshal(credentialAssertionData)
+		if err != nil {
+			return caos_errs.ThrowInvalidArgument(err, "COMMAND-ohG2o", "todo")
+		}
+		humanPasskeys, err := cmd.getHumanPasskeys(ctx)
+		if err != nil {
+			return err
+		}
+		webAuthN, err := cmd.sessionWriteModel.PasskeyChallenge.WebAuthNLogin(humanPasskeys.human, credentialAssertionData)
+		if err != nil {
+			return err
+		}
+		keyID, signCount, err := c.webauthnConfig.FinishLogin(ctx, humanPasskeys.human, webAuthN, credentialAssertionData, humanPasskeys.tokens...)
+		if err != nil && keyID == nil {
+			return err
+		}
+		_, token := domain.GetTokenByKeyID(humanPasskeys.tokens, keyID)
+		if token == nil {
+			return caos_errs.ThrowPreconditionFailed(nil, "COMMAND-Aej7i", "Errors.User.WebAuthN.NotFound")
+		}
+		cmd.sessionWriteModel.PasskeyChecked(ctx, cmd.now(), token.WebAuthNTokenID, signCount)
+		return nil
+	}
+}