chore: move the go code into a subfolder

apps/api/internal/webauthn/client.go

@@ -0,0 +1,82 @@
+package webauthn
+
+import (
+	"fmt"
+
+	"github.com/descope/virtualwebauthn"
+	"google.golang.org/protobuf/encoding/protojson"
+	"google.golang.org/protobuf/types/known/structpb"
+)
+
+type Client struct {
+	rp             virtualwebauthn.RelyingParty
+	auth           virtualwebauthn.Authenticator
+	authVerifyUser virtualwebauthn.Authenticator
+	credential     virtualwebauthn.Credential
+}
+
+func NewClient(name, domain, origin string) *Client {
+	rp := virtualwebauthn.RelyingParty{
+		Name:   name,
+		ID:     domain,
+		Origin: origin,
+	}
+	return &Client{
+		rp: rp,
+		auth: virtualwebauthn.NewAuthenticatorWithOptions(virtualwebauthn.AuthenticatorOptions{
+			UserNotVerified: true,
+		}),
+		authVerifyUser: virtualwebauthn.NewAuthenticator(),
+		credential:     virtualwebauthn.NewCredential(virtualwebauthn.KeyTypeEC2),
+	}
+}
+
+func (c *Client) CreateAttestationResponse(optionsPb *structpb.Struct) (*structpb.Struct, error) {
+	options, err := protojson.Marshal(optionsPb)
+	if err != nil {
+		return nil, fmt.Errorf("webauthn.Client.CreateAttestationResponse: %w", err)
+	}
+	attestationResponse, err := c.CreateAttestationResponseData(options)
+	if err != nil {
+		return nil, err
+	}
+	resp := new(structpb.Struct)
+	err = protojson.Unmarshal(attestationResponse, resp)
+	if err != nil {
+		return nil, fmt.Errorf("webauthn.Client.CreateAttestationResponse: %w", err)
+	}
+	return resp, nil
+}
+
+func (c *Client) CreateAttestationResponseData(options []byte) ([]byte, error) {
+	parsedAttestationOptions, err := virtualwebauthn.ParseAttestationOptions(string(options))
+	if err != nil {
+		return nil, fmt.Errorf("webauthn.Client.CreateAttestationResponse: %w", err)
+	}
+	return []byte(virtualwebauthn.CreateAttestationResponse(
+		c.rp, c.auth, c.credential, *parsedAttestationOptions,
+	)), nil
+}
+
+func (c *Client) CreateAssertionResponse(optionsPb *structpb.Struct, verifyUser bool) (*structpb.Struct, error) {
+	options, err := protojson.Marshal(optionsPb)
+	if err != nil {
+		return nil, fmt.Errorf("webauthn.Client.CreateAssertionResponse: %w", err)
+	}
+	parsedAssertionOptions, err := virtualwebauthn.ParseAssertionOptions(string(options))
+	if err != nil {
+		return nil, fmt.Errorf("webauthn.Client.CreateAssertionResponse: %w", err)
+	}
+	authenticator := c.auth
+	if verifyUser {
+		authenticator = c.authVerifyUser
+	}
+	resp := new(structpb.Struct)
+	err = protojson.Unmarshal([]byte(virtualwebauthn.CreateAssertionResponse(
+		c.rp, authenticator, c.credential, *parsedAssertionOptions,
+	)), resp)
+	if err != nil {
+		return nil, fmt.Errorf("webauthn.Client.CreateAssertionResponse: %w", err)
+	}
+	return resp, nil
+}