module.exports = {
    /*
    these functions will overwrite the default ones, write your own when necessary.
    */

    //whether to intercept this request by local logic
    //if the return value is true, anyproxy will call dealLocalResponse to get response data and will not send request to remote server anymore
    shouldUseLocalResponse : function(req,reqBody){
        return false;
    },

    //you may deal the response locally instead of sending it to server
    //this function be called when shouldUseLocalResponse returns true
    //callback(statusCode,resHeader,responseData)
    //e.g. callback(200,{"content-type":"text/html"},"hello world")
    dealLocalResponse : function(req,reqBody,callback){
        callback(statusCode,resHeader,responseData)
    },

    //replace the request protocol when sending to the real server
    //protocol : "http" or "https"
    replaceRequestProtocol:function(req,protocol){
        var newProtocol = protocol;
        return newProtocol;
    },

    //req is user's request sent to the proxy server
    //option is how the proxy server will send request to the real server. i.e. require("http").request(option,function(){...})
    //you may return a customized option to replace the original option
    //you should not write content-length header in options, since anyproxy will handle it for you
    replaceRequestOption : function(req,option){
        var newOption = option;
        return newOption;
    },

    //replace the request body
    replaceRequestData: function(req,data){
        return data;
    },

    //replace the statusCode before it's sent to the user
    replaceResponseStatusCode: function(req,res,statusCode){
        var newStatusCode = statusCode;
        return newStatusCode;
    },

    //replace the httpHeader before it's sent to the user
    //Here header == res.headers
    replaceResponseHeader: function(req,res,header){
        var newHeader = header;
        return newHeader;
    },

    //replace the response from the server before it's sent to the user
    //you may return either a Buffer or a string
    //serverResData is a Buffer, you may get its content by calling serverResData.toString()
    replaceServerResData: function(req,res,serverResData){
        return serverResData;
    },

    //add a pause before sending response to user
    pauseBeforeSendingResponse : function(req,res){
        var timeInMS = 1; //delay all requests for 1ms
        return timeInMS; 
    },

    //should intercept https request, or it will be forwarded to real server
    shouldInterceptHttpsReq :function(req){
        return false;
    }

};

var proxy = require("anyproxy");

!proxy.isRootCAFileExists() && proxy.generateRootCA(); //please manually trust this rootCA
new proxy.proxyServer("http","8001", "localhost" ,"path/to/rule/file.js");