config.txt

{
    "remote_host": "127.0.0.1",  //self-explanatory
    "remote_port": "9000",  //self-explanatory
    "proxy_host": "127.0.0.1",  //self-explanatory
    "proxy_port": "9001",  //self-explanatory
    "rules":
    {
        "client":  //rules applied to traffic from client
        [
            {
                "name": "Adore is better than like",  //name is not actually used, just organizational
                "type": "regex2string",  //type of the rule - currently just regex2string
                "case_sensitive": "false",  //self-explanatory
                "from": "like",  //the filtered regex
                "to": "adore",  //what should the matches be replaced with
                "alert": ""  //empty does not send any alerts
            }
        ],

        "server":  //rules applied to responses from server
        [
            {
                "name": "Adore is better than like",
                "type": "regex2string",
                "case_sensitive": "false",
                "from": "like",
                "to": "adore",
                "alert": ""
            }, 
            {
                "name": "I dont like flags",
                "type": "regex2string",
                "case_sensitive": "true",
                "from": "FLAG{[^}]+}",
                "to": "not_today_crocodile",
                "alert": "FLAG OUT+"  //on every rule break, prints FLAG OUT, "+" gets replaced with the traffic that broke the rule
            }
        ]
    }
}