update CORS middleware and make it configurable

webdav/pkg/config/config.go

@@ -18,10 +18,19 @@ type Debug struct {
 	Zpages bool
 }
 
+// CORS defines the available cors configuration.
+type CORS struct {
+	AllowedOrigins   []string
+	AllowedMethods   []string
+	AllowedHeaders   []string
+	AllowCredentials bool
+}
+
 // HTTP defines the available http configuration.
 type HTTP struct {
 	Addr string
 	Root string
+	CORS CORS
 }
 
 // Service defines the available service configuration.
@@ -42,13 +51,13 @@ type Tracing struct {
 
 // Config combines all available configuration parts.
 type Config struct {
-	File    string
-	Log     Log
-	Debug   Debug
-	HTTP    HTTP
-	Tracing Tracing
-	Service Service
-	OcisPublicURL string
+	File            string
+	Log             Log
+	Debug           Debug
+	HTTP            HTTP
+	Tracing         Tracing
+	Service         Service
+	OcisPublicURL   string
 	WebdavNamespace string
 
 	Context    context.Context