Implement optional login functionality

doc.go

@@ -143,6 +143,8 @@ type Resource struct {
 	Methods []string `json:"methods" yaml:"methods"`
 	// WhiteListed permits the prefix through
 	WhiteListed bool `json:"white-listed" yaml:"white-listed"`
+	// WhiteListed permits the prefix through
+	OptionalLogin bool `json:"optional-login" yaml:"optional-login"`
 	// RequireAnyRole indicates that ANY of the roles are required, the default is all
 	RequireAnyRole bool `json:"require-any-role" yaml:"require-any-role"`
 	// Roles the roles required to access this url

server.go

@@ -264,14 +264,16 @@ func (r *oauthProxy) createReverseProxy() error {
 			r.admissionMiddleware(false, x),
 			r.identityHeadersMiddleware(r.config.AddClaims))
 
-		w := engine.With(
+		o := engine.With(
 			r.authenticationMiddleware(true),
 			r.admissionMiddleware(true, x),
 			r.identityHeadersMiddleware(r.config.AddClaims))
 
 		for _, m := range x.Methods {
-			if x.WhiteListed {
-				w.MethodFunc(m, x.URL, emptyHandler)
+			if x.OptionalLogin {
+				o.MethodFunc(m, x.URL, emptyHandler)
+			} else if x.WhiteListed {
+				engine.MethodFunc(m, x.URL, emptyHandler)
 			} else {
 				e.MethodFunc(m, x.URL, emptyHandler)
 			}