refactor: move vault package to app directory

pkg/didauth/controller/config.go

@@ -0,0 +1,57 @@
+package controller
+
+import (
+	"github.com/labstack/echo/v4"
+	"github.com/onsonr/sonr/crypto/ucan/spec"
+)
+
+// ControllerConfig defines the configuration for UCAN middleware
+type ControllerConfig struct {
+	// Skipper defines a function to skip middleware
+	Skipper func(c echo.Context) bool
+
+	// KeySource provides the source for validating UCANs
+	KeySource spec.KeyshareSource
+
+	// TokenLookup is a string in the form of "<source>:<name>" that is used
+	// to extract token from the request.
+	// Optional. Default value "header:Authorization".
+	// Possible values:
+	// - "header:<name>"
+	// - "query:<name>"
+	// - "param:<name>"
+	// - "cookie:<name>"
+	TokenLookup string
+
+	// AuthScheme to be used in the Authorization header.
+	// Optional. Default value "Bearer".
+	AuthScheme string
+}
+
+// DefaultControllerConfig is the default UCAN middleware config
+var DefaultControllerConfig = ControllerConfig{
+	Skipper:     nil,
+	TokenLookup: "header:Authorization",
+	AuthScheme:  "Bearer",
+}
+
+type Option func(c *ControllerConfig)
+
+func WithSkipper(skipper func(c echo.Context) bool) Option {
+	return func(c *ControllerConfig) {
+		c.Skipper = skipper
+	}
+}
+
+func WithAuthScheme(scheme string) Option {
+	return func(c *ControllerConfig) {
+		c.AuthScheme = scheme
+	}
+}
+
+// WithTokenLookup sets the token lookup strategy
+func WithTokenLookup(lookup string) Option {
+	return func(c *ControllerConfig) {
+		c.TokenLookup = lookup
+	}
+}