CUHK-Shenzhen Course Registration VCode OCR, Byebye!

cusz_course_reg_ocr_byebye.js

// ==UserScript==
// @name         Ultra OCR for CUHKSZ Course Reg.
// @namespace    http://example.com/
// @version      0.2
// @description  try to take over the world!
// @author       You
// @match        http://course.computercomity.com:81/psc/csprd/EMPLOYEE/HRMS/c/SA_LEARNER_SERVICES.*
// @match        http://116.31.95.2:81/psc/csprd/EMPLOYEE/HRMS/c/SA_LEARNER_SERVICES.*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    window.onload = function () {
        net2.ContentLoader.prototype.loadXMLDoc = function(bParamsDone) {
            if (typeof ptConsole2 != 'undefined' && ptConsole2 && ptConsole2.isActive() && bPerf)
                ptConsole2.append((new Date()).valueOf() + " processPIAPostParams start");
            if (typeof bParamsDone == 'undefined' || !bParamsDone) {
                if (!this.processPIAPostParams())
                    return;
            }

            this.SetInProcess(true, this.form);
            if (typeof ptConsole2 != 'undefined' && ptConsole2 && ptConsole2.isActive() && bPerf)
                ptConsole2.append((new Date()).valueOf() + " processPIAPostParams end and server start");
            if (this.method.indexOf("GET") != -1 && this.params.length > 0)
                this.url += "?" + this.params;
            if (typeof ptConsole2 != 'undefined' && ptConsole2 && ptConsole2.isActive() && !bPerf)
                ptConsole2.append((new Date()).valueOf() + " url:\n" + this.url + "\nparams:" + this.params.length + "\n" + this.params);
            try {
                this.req = this.createXMLHTTPRequest();
            } catch (e) {
                alert(e);
                this.SetInProcess(false);
                this.SetWaitingObject(null, "", null, false, false);
                this.onerror.call(this);
            }

            if (this.req) {
                try {
                    var loader = this;
                    this.req.onreadystatechange = function() {
                        loader.onReadyState.call(loader);
                        console.log('k');
                        ocr();
                    };

                    if (browserInfoObj2.isSafari2x) {
                        this.isAsync = false;
                    }

                    this.req.open(this.method, this.url, this.isAsync);
                    if (this.isAsync && typeof this.req.withCredentials != 'undefined')
                        this.req.withCredentials = "true";
                    if (this.contentType) {
                        this.req.setRequestHeader('Content-Type', this.contentType);
                    }

                    if (this.headerArray) {
                        for (var i = 0; i < this.headerArray.length; i++) {
                            if (this.headerArray[i][0] && this.headerArray[i][1])
                                this.req.setRequestHeader(this.headerArray[i][0], this.headerArray[i][1]);
                        }
                    }

                    nLastAction = 1;
                    if (!this.bPrompt && typeof nResubmit != 'undefined' && !this.bCallBack)
                        nResubmit++;
                    this.req.send(this.params);
                } catch (err) {
                    try {
                        if (!this.isAsync && ((this.url).indexOf(net2.EXCLUDEPORTALURL) > -1)) {
                        } else
                            alert("Error in opening/sending request: - Error: " + err + " - Url:" + this.url + ", - URL Parameters: " + this.params);
                    } catch (e) {
                        alert("Error in opening/sending request url: " + this.url + ", URL Param: " + this.params);
                    }

                    this.sendErrorHandler();
                    return;
                }
            }
        };
        window.ocr = function () {
            var input = document.getElementById('inputValue');
            if (!input) return;
            input.value = window.VCD;
            console.log("OCR Result: " + window.VCD);
            input.hidden = true;
            checkUserName(window.VCD);
            var byebye_code = document.getElementById('imgCaptcha');
            byebye_code.src = "http://course.computercomity.com:81/vcode.png?randval=BYE_BYE";
            console.log("Byebye VCode!");
        };
        ocr();
    };
})();