// ==UserScript==
// @name         UIC·校园网认证系统 自动登录
// @namespace    undefined
// @version      1.0
// @description  自动登录「UIC·校园网认证系统」
// @author       Tosh
// @include      http://enet.10000.gd.cn:10001/zh/zh1213/index.jsp
// @include      http://enet.10000.gd.cn:10001/zh/zh1213/index.jsp?wlanacip=*&wlanuserip=*
// @include      http://enet.10000.gd.cn:10001/zh/zh1213/index.jsp?wlanuserip=*&wlanacip=*
// @downloadURL none
// ==/UserScript==

var username = "这里填账号";
var password = "这里填密码";

function getQueryString(name) {
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
    var r = window.location.search.substr(1).match(reg);
    if (r !== null) return unescape(r[2]); return null;
}

// 以下验证码识别算法来自紫云飞 http://www.cnblogs.com/ziyunfei/archive/2012/10/05/2710349.html
function getRand() {
    var image = document.getElementById("random");
    var canvas = document.createElement('canvas');
    canvas.style.display = 'none';
    var ctx = canvas.getContext("2d");
    var numbers = ["111000111100000001100111001001111100001111100001111100001111100001111100001111100001111100100111001100000001111000111111111111111111111000000000",
                   "111000111100000111100000111111100111111100111111100111111100111111100111111100111111100111111100111100000000100000000111111111111111111000000000",
                   "100000111000000011011111001111111001111111001111110011111100111111001111110011111100111111001111111000000001000000001111111111111111111000000000",
                   "100000111000000001011111001111111001111110011100000111100000011111110001111111001111111001011110001000000011100000111111111111111111111000000000",
                   "111110011111100011111100011111000011110010011110010011100110011100110011000000000000000000111110011111110011111110011111111111111111111000000000",
                   "000000001000000001001111111001111111001111111000001111000000011111110001111111001111111001011110001000000011100000111111111111111111111000000000",
                   "111000011110000001100111101100111111001111111001000011000000001000111000001111100001111100100111000100000001111000011111111111111111111000000000",
                   "100000000100000000111111100111111101111111001111110011111110111111100111111101111111001111111001111110011111110011111111111111111111111000000000",
                   "110000011100000001100111001100111001100011011110000011110000011100110001001111100001111100000111000100000001110000011111111111111111111000000000",
                   "110000111100000001000111001001111100001111100000111000100000000110000100111111100111111001101111001100000011110000111111111111111111111000000000"];
    var captcha = "";
    canvas.width = image.width;
    canvas.height = image.height;
    document.body.appendChild(canvas);
    ctx.drawImage(image, 0, 0);
    for (var i = 0; i < 4; i++) {
        var pixels = ctx.getImageData(13 * i + 7, 3, 9, 16).data;
        var ldString = "";
        for (var j = 0, length = pixels.length; j < length; j += 4) {
            ldString = ldString + ( + (pixels[j] * 0.3 + pixels[j + 1] * 0.59 + pixels[j + 2] * 0.11 >= 140));
        }
        var comms = numbers.map(function(value) {
            return ldString.split("").filter(function(v, index) {
                return value[index] === v;
            }).length;
        });
        captcha += comms.indexOf(Math.max.apply(null, comms));
    }
    return captcha;
}

if (username === "这里填账号" || password == "这里填密码") {
    alert("请去用户脚本管理器中，找到此脚本的第 12、13 行代码，添加自己的账号与密码");
} else {
    document.getElementById("random").onload = function() {
        document.getElementById("userName1").value = username;
        document.getElementById("password1").value = password;
        document.getElementById("rand").value = getRand();
        submitlogin1();
    };
}