/*
		12306 Auto Login => A javascript snippet to help you auto login 12306.com.
		Copyright (C) 2011 Kevintop
		
		Includes jQuery
		Copyright 2011, John Resig
		Dual licensed under the MIT or GPL Version 2 licenses.
		http://jquery.org/license

		Includes 12306.user.js
		https://gist.github.com/1554666
		Copyright (C) 2011 Jingqin Lynn
		Released GNU Licenses.

		This program is free software: you can redistribute it and/or modify
		it under the terms of the GNU General Public License as published by
		the Free Software Foundation, either version 3 of the License, or
		(at your option) any later version.

		This program is distributed in the hope that it will be useful,
		but WITHOUT ANY WARRANTY; without even the implied warranty of
		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
		GNU General Public License for more details.

		You should have received a copy of the GNU General Public License
		along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

// ==UserScript==  
// @name         12306 Auto Login  
// @author       kevintop@gmail.com  
// @namespace    https://plus.google.com/107416899831145722597  
// @description  A javascript snippet to help you auto login 12306.com
// @include      *://dynamic.12306.cn/otsweb/loginAction.do*
// @include      *://dynamic.12306.cn/otsweb/login.jsp*
// ==/UserScript== 
function withjQuery(callback, safe){
	if(typeof(jQuery) == "undefined") {
		var script = document.createElement("script");
		script.type = "text/javascript";
		script.src = "https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js";

		if(safe) {
			var cb = document.createElement("script");
			cb.type = "text/javascript";
			cb.textContent = "jQuery.noConflict();(" + callback.toString() + ")(jQuery);";
			script.addEventListener('load', function() {
				document.head.appendChild(cb);
			});
		}
		else {
			var dollar = undefined;
			if(typeof($) != "undefined") dollar = $;
			script.addEventListener('load', function() {
				jQuery.noConflict();
				$ = dollar;
				callback(jQuery);
			});
		}
		document.head.appendChild(script);
	} else {
		callback(jQuery);
	}
}
withjQuery(function($){
//login
		var url = "https://dynamic.12306.cn/otsweb/loginAction.do?method=login";
		var queryurl = "https://dynamic.12306.cn/otsweb/order/querySingleAction.do?method=init";
		function submitForm(){
			var submitUrl = url;
			$.ajax({
				type: "POST",
				url: submitUrl,
				data: {
					"loginUser.user_name": $("#UserName").val()
				  , "user.password": $("#password").val()
				  , "randCode": $("#randCode").val()
				},
				timeout: 30000,
				//cache: false,
				//async: false,
				success: function(msg){
					if (msg.indexOf('请输入正确的验证码') > -1) {
						alert('请输入正确的验证码！');
					};
					if (msg.indexOf('当前访问用户过多') > -1|| msg.match(/var\s+isLogin\s*=\s*false/i)) {
						reLogin();
					}
					else {
						$('#refreshButton').html("成功,请点车票预订!");
						location.replace(queryurl);
					};
				},
				error: function(msg){
					reLogin();
				},
				beforeSend: function(XHR){
					//alert("Data Saved: " + XHR);
				}
			});
		}

		var count = 1;
		function reLogin(){
			count ++;
			$('#refreshButton').html("("+count+")次登录中...");
			setTimeout(submitForm, 2000);
		}
		//初始化
        if($("#refreshButton").size()<1){
			$("#subLink").after($("<a href='#' style='padding: 5px 10px; background: #2CC03E;border-color: #259A33;border-right-color: #2CC03E;border-bottom-color:#2CC03E;color: white;border-radius: 5px;text-shadow: -1px -1px 0 rgba(0, 0, 0, 0.2);'/>").attr("id", "refreshButton").html("自动登录").click(function() {
			    alert('开始尝试登录，请点确定后耐心等待！');
				count = 1;
			    $(this).html("(1)次登录中...");
			    submitForm();
			    return false;
		    }));
	       alert('如果使用自动登录功能，请输入用户名、密码及验证码后，点击自动登录，系统会尝试登录，直至成功！');
         }
}, true);