Light12306/Mobile12306New/js/12306.js

var cn12306 = {
	coreVersion: "1.0.0.0",
	baseUri: "https://kyfw.12306.cn/otn/",
	queryBaseUri: "http://dynamic.12306.cn/otsquery/",
	ajaxQueue: {},
	ajaxCount: 0,
	getFullUri: function(url) {
		return url[4] === ":" || url[5] === ":" ? url : cn12306.baseUri + url;
	},

	/**
	 * 获取验证码
	 * @param  {String}   flag     验证码类型（sjrand|randp）
	 * @param  {Function} callback 获取后回调
	 * @param  {String}   refer    Header refer
	 * @return {Img uri}           base64图片url
	 */
	loadRandCode: function(flag, callback, refer) {
		var url = cn12306.getFullUri(flag[4] === ":" || flag[5] === ":" ? flag : (function(f) {
			if (flag == "sjrand") {
				return "/passcodeNew/getPassCodeNew?module=login&rand=sjrand";
			} else if (flag == "randp") {
				return "/passcodeNew/getPassCodeNew?module=passenger&rand=randp";
			}
			Public.alert("不支持的验证码类型！");
		})(flag));

		refer = cn12306.getFullUri(refer || "loginAction.do?method=init");
		var xhr = new window.XMLHttpRequest();
		if (isAndLiebao || isIos || isWebApp) {
			xhr.open("GET", url, true);
		} else {
			xhr.open("GET", baseProxyUrl, true);
			xhr.setRequestHeader("Fish-RawUrl", url);
		}
		xhr.onreadystatechange = function() {
			if (xhr.readyState == 4) {
				if (xhr.status != 200) {
					Public.alert("加载验证码失败，请点击验证码刷新");
				} else {
					callback(base64.toObjectUrl(base64.encodeArrayBuffer(xhr.response), "image/jpeg"));
				}
			}
		};
		var prefix = isAndLiebao ? "" : "Fish-";
		xhr.responseType = "arraybuffer";
		xhr.setRequestHeader(prefix + "Referer", refer);
		xhr.setRequestHeader(prefix + "User-Agent", "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)");
		xhr.setRequestHeader(prefix + "Origin", /(https?:\/\/[^\/]+\/)/.exec(url)[1]);
		xhr.send(null);
	},

	/**
	 * 获取ajax url
	 * @param  {String} url ajax url
	 * @return {String}     ajax url
	 */
	getAjaxUrl: function(url) {
		return (isAndLiebao || isIos || isWebApp) ? cn12306.getFullUri(url) : baseProxyUrl;
	},

	/**
	 * 获取请求头
	 * @param  {String} url   ajax url
	 * @param  {String} refer Header refer
	 * @return {Object}       所有header
	 */
	getHeaders: function(url, refer) {
		var url = cn12306.getFullUri(url),
			refer = cn12306.getFullUri(refer),
			headers = {},
			prefix = isAndLiebao ? "" : "Fish-";

		headers[prefix + "User-Agent"] = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)",
		headers[prefix + "Origin"] = /(https?:\/\/[^\/]+\/)/.exec(url)[1],
		headers[prefix + "RawUrl"] = url
		headers[prefix + "Referer"] = refer;
		if (!(isAndLiebao || isIos || isWebApp)) {
			headers["Fish-RawUrl"] = url;
		}
		return headers;
	},

	/**
	 * 验证验证码
	 * @param  {String} type    验证码类型
	 * @param  {String} code    需要验证的验证码
	 * @param  {Function} success 成功回调
	 * @param  {Function} error   失败回调
	 * @param  {String} refer   Header请求头refer
	 * @return {Ajax Callback}  执行回调
	 */
	checkRandCode: function(type, code, success, error, refer) {
		var url = cn12306.getFullUri("passcodeNew/checkRandCodeAnsyn"),
			refer = cn12306.getFullUri(refer),
			headers = cn12306.getHeaders(url, refer);

		$.ajax({
			type: 'POST',
			url: cn12306.getAjaxUrl(url),
			data: {
				"randCode": code,
				"rand": type
			},
			dataType: 'json',
			refer: refer,
			headers: headers,
			success: function(data) {
				if (typeof success == 'function') {
					success(data);
				}
			},
			error: function(xhr, type) {
				if (typeof error == 'function') {
					error(xhr, type);
				}
			}
		});
	},

	/**
	 * 测试指定用户是否已经登录
	 * @param  {function}  loginedCallback 已经登录回调
	 * @param  {Function}  unloginCallback 未登录回调
	 * @param  {Function}  errorCallback   错误回调
	 */
	isUserLogined: function(loginedCallback, unloginCallback, errorCallback) {
		var url = cn12306.getFullUri("login/checkUser"),
			refer = cn12306.getFullUri('leftTicket/init'),
			headers = cn12306.getHeaders(url, refer);

		$.ajax({
			type: 'POST',
			url: cn12306.getAjaxUrl(url),
			data: {
				"_json_att": ""
			},
			dataType: 'json',
			refer: refer,
			headers: headers,
			success: function(json) {
				if (json && json.data && json.data.flag) {
					if (json.attributes) {
						sessionStorage["useratts"] = json.attributes;
					};
					(typeof loginedCallback == "function") && loginedCallback();
				} else {
					(typeof unloginCallback == "function") && unloginCallback();
				}
			},
			error: function(xhr, type) {
				(typeof errorCallback == "function") && errorCallback();
			}
		});
	}
}