libwebsockets介绍

         libwebsockets是一款轻量级用来开发服务器和客户端的C库。它不仅支持ws，wss还同时支持http与https，可以轻轻松松结合openssl等库来实现ssl加密。

官方参考链接：

https://libwebsockets.org/

lighttpd版本

lighttpd/1.4.59 (ssl) - a light and fast webserver
usage:
 -f <name>  filename of the config-file
 -m <name>  module directory (default: /usr/lib)
 -i <secs>  graceful shutdown after <secs> of inactivity
 -1         process single (one) request on stdin socket, then exit
 -p         print the parsed config-file in internal form, and exit
 -t         test config-file syntax, then exit
 -tt        test config-file syntax, load and init modules, then exit
 -D         don't go to background (default: go to background)
 -v         show version
 -V         show compile-time features
 -h         show this help

lighttpd配置

配置安全策略需要添加ws:wss:配置

var.response_header_policy = (