pop3.js

var POP3Client = require("poplib");
// M.T.X 用于pop3密码暴力破解、弱口令测试
function fnPop3(opt)
{
    opt || (opt = {});
    var port = opt.port || 110,
        host = opt.host;
    var client = new POP3Client(port, host, {
        tlserrs: false,
        enabletls: false,
        debug: false
    });
    var username = opt.username || "",
        password = opt.password || "",
        g_OkFlg = false, bRst = false;
    

    client.on("error", function(err) {
        bRst = true;
        /*if (err.errno === 111) console.log("Unable to connect to server");
        else console.log("Server error occurred");
        console.log(err);
        */
        // client.quit();
    });

    // Data is a 1-based index of messages, if there are any messages
    /*
    client.on("list", function(status, msgcount, msgnumber, data, rawdata) {
        if (status === false) {
            // console.log("LIST failed");
            client.quit();
        } else {
            // console.log("LIST success with " + msgcount + " element(s)");
            if (msgcount > 0)
                client.retr(1);
            else
                client.quit();
        }
    });
*/
    client.on("retr", function(status, msgnumber, data, rawdata) {
        bRst = true;
        if (status === true) {
            console.log("RETR success for msgnumber " + msgnumber);
            // client.dele(msgnumber);
            client.quit();
        } else {
            console.log("RETR failed for msgnumber " + msgnumber);
            client.quit();
        }
    });
    client.on("dele", function(status, msgnumber, data, rawdata) {
        if (status === true) {
            console.log("DELE success for msgnumber " + msgnumber);
            client.quit();
        } else {
            console.log("DELE failed for msgnumber " + msgnumber);
            client.quit();
        }
    });

    client.on("quit", function(status, rawdata) {
        bRst = true;
        // if (status === true) console.log("QUIT success");
        // else console.log("QUIT failed");
    });

    
    client.on("login", function(status, rawdata) {
        bRst = true;
        client.quit();
        if (status) {
            // console.log("LOGIN/PASS success");
            // client.list();
            g_OkFlg = true;
        } else {
            // console.log("LOGIN/PASS failed");
            g_OkFlg = false;
        }
    });

    this.login = function(opt)
    {
        var username = opt.username || "",
        password = opt.password || "";
        // delete opt;
        if(username)client.login(username, password);
    }
    var login = this.login;

    client.on("connect", function() {
        // console.log("CONNECT success");
        login(opt);
    });
    client.on("invalid-state", function(cmd) {
        bRst = true;
        console.log("Invalid state. You tried calling " + cmd);
    });
    client.on("locked", function(cmd) {
        bRst = true;
        console.log("Current command has not finished yet. You tried calling " + cmd);
    });

    // 等待结果
    function getRst(fncbk)
    {
        setTimeout(function(){
            if(!bRst)getRst(fncbk);else
            {
                delete client;delete POP3Client;
                fncbk(g_OkFlg);
            }
        },13);
        // fncbk(1)
    }
    this.getRst = getRst;

}

// fnPop3({port:110,host:"125.71.203.220",'username':'yangbc',password:"yangbc!@#$"})

module.exports = fnPop3;