refactor to go-restful

cmd/dkl-local-server/ws-hosts.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"net/http"
+
+	restful "github.com/emicklei/go-restful"
+)
+
+func wsListHosts(req *restful.Request, resp *restful.Response) {
+	cfg, err := readConfig()
+	if err != nil {
+		resp.WriteErrorString(http.StatusServiceUnavailable, "failed to read configuration")
+		return
+	}
+
+	names := make([]string, len(cfg.Hosts))
+	for i, host := range cfg.Hosts {
+		names[i] = host.Name
+	}
+
+	resp.WriteEntity(names)
+}