added new basic auth endpoint

pkg/server/handler.go

@@ -576,3 +576,20 @@ func logoutHandler(ctx *Context) {
 	ctx.SetCookie(nil, 0)
 	ctx.Redirect(root, http.StatusFound)
 }
+
+func authBasicHandler(ctx *Context) {
+	if ctx.Method() != "GET" {
+		ctx.PlainUnauthorized()
+		return
+	}
+	username, password, ok := ctx.Request.BasicAuth()
+	if !ok {
+		ctx.PlainUnauthorized()
+		return
+	}
+	if ctx.Srv.BasicAuth.Auth(username, password) {
+		ctx.PlainOK()
+		return
+	}
+	ctx.PlainForbidden()
+}