489 lines
14 KiB
JavaScript
489 lines
14 KiB
JavaScript
"v4.1.5 Geetest Inc.";
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(function (window) {
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"use strict";
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if (typeof window === 'undefined') {
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throw new Error('Geetest requires browser environment');
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}
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var document = window.document;
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var Math = window.Math;
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var head = document.getElementsByTagName("head")[0];
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var TIMEOUT = 10000;
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function _Object(obj) {
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this._obj = obj;
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}
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_Object.prototype = {
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_each: function (process) {
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var _obj = this._obj;
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for (var k in _obj) {
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if (_obj.hasOwnProperty(k)) {
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process(k, _obj[k]);
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}
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}
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return this;
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},
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_extend: function (obj){
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var self = this;
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new _Object(obj)._each(function (key, value){
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self._obj[key] = value;
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})
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}
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};
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var uuid = function () {
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return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
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var r = Math.random() * 16 | 0;
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var v = c === 'x' ? r : (r & 0x3 | 0x8);
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return v.toString(16);
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});
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};
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function Config(config) {
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var self = this;
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new _Object(config)._each(function (key, value) {
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self[key] = value;
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});
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}
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Config.prototype = {
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apiServers: ['gcaptcha4.geetest.com','gcaptcha4.geevisit.com','gcaptcha4.gsensebot.com'],
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staticServers: ["static.geetest.com",'static.geevisit.com', "dn-staticdown.qbox.me"],
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protocol: 'http://',
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typePath: '/load',
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fallback_config: {
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bypass: {
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staticServers: ["static.geetest.com",'static.geevisit.com',"dn-staticdown.qbox.me"],
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type: 'bypass',
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bypass: '/v4/bypass.js'
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}
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},
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_get_fallback_config: function () {
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var self = this;
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if (isString(self.type)) {
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return self.fallback_config[self.type];
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} else {
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return self.fallback_config.bypass;
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}
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},
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_extend: function (obj) {
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var self = this;
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new _Object(obj)._each(function (key, value) {
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self[key] = value;
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})
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}
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};
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var isNumber = function (value) {
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return (typeof value === 'number');
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};
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var isString = function (value) {
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return (typeof value === 'string');
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};
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var isBoolean = function (value) {
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return (typeof value === 'boolean');
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};
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var isObject = function (value) {
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return (typeof value === 'object' && value !== null);
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};
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var isFunction = function (value) {
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return (typeof value === 'function');
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};
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var MOBILE = /Mobi/i.test(navigator.userAgent);
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var callbacks = {};
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var status = {};
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var random = function () {
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return parseInt(Math.random() * 10000) + (new Date()).valueOf();
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};
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// bind 函数polify, 不带new功能的bind
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var bind = function(target,context){
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if(typeof target !== 'function'){
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return;
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}
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var args = Array.prototype.slice.call(arguments,2);
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if(Function.prototype.bind){
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return target.bind(context, args);
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}else {
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return function(){
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var _args = Array.prototype.slice.call(arguments);
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return target.apply(context,args.concat(_args));
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}
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}
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}
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var toString = Object.prototype.toString;
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var _isFunction = function(obj) {
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return typeof(obj) === 'function';
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};
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var _isObject = function(obj) {
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return obj === Object(obj);
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};
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var _isArray = function(obj) {
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return toString.call(obj) == '[object Array]';
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};
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var _isDate = function(obj) {
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return toString.call(obj) == '[object Date]';
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};
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var _isRegExp = function(obj) {
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return toString.call(obj) == '[object RegExp]';
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};
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var _isBoolean = function(obj) {
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return toString.call(obj) == '[object Boolean]';
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};
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function resolveKey(input){
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return input.replace(/(\S)(_([a-zA-Z]))/g, function(match, $1, $2, $3){
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return $1 + $3.toUpperCase() || "";
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})
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}
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function camelizeKeys(input, convert){
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if(!_isObject(input) || _isDate(input) || _isRegExp(input) || _isBoolean(input) || _isFunction(input)){
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return convert ? resolveKey(input) : input;
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}
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if(_isArray(input)){
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var temp = [];
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for(var i = 0; i < input.length; i++){
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temp.push(camelizeKeys(input[i]));
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}
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}else {
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var temp = {};
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for(var prop in input){
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if(input.hasOwnProperty(prop)){
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temp[camelizeKeys(prop, true)] = camelizeKeys(input[prop]);
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}
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}
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}
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return temp;
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}
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var loadScript = function (url, cb, timeout) {
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var script = document.createElement("script");
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script.charset = "UTF-8";
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script.async = true;
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// 对geetest的静态资源添加 crossOrigin
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if ( /static\.geetest\.com/g.test(url)) {
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script.crossOrigin = "anonymous";
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}
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script.onerror = function () {
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cb(true);
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// 错误触发了，超时逻辑就不用了
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loaded = true;
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};
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var loaded = false;
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script.onload = script.onreadystatechange = function () {
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if (!loaded &&
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(!script.readyState ||
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"loaded" === script.readyState ||
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"complete" === script.readyState)) {
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loaded = true;
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setTimeout(function () {
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cb(false);
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}, 0);
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}
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};
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script.src = url;
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head.appendChild(script);
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setTimeout(function () {
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if (!loaded) {
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script.onerror = script.onload = null;
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script.remove && script.remove();
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cb(true);
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}
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}, timeout || TIMEOUT);
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};
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var normalizeDomain = function (domain) {
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// special domain: uems.sysu.edu.cn/jwxt/geetest/
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// return domain.replace(/^https?:\/\/|\/.*$/g, ''); uems.sysu.edu.cn
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return domain.replace(/^https?:\/\/|\/$/g, ''); // uems.sysu.edu.cn/jwxt/geetest
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};
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var normalizePath = function (path) {
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path = path.replace(/\/+/g, '/');
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if (path.indexOf('/') !== 0) {
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path = '/' + path;
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}
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return path;
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};
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var normalizeQuery = function (query) {
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if (!query) {
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return '';
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}
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var q = '?';
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new _Object(query)._each(function (key, value) {
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if (isString(value) || isNumber(value) || isBoolean(value)) {
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q = q + encodeURIComponent(key) + '=' + encodeURIComponent(value) + '&';
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}
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});
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if (q === '?') {
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q = '';
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}
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return q.replace(/&$/, '');
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};
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var makeURL = function (protocol, domain, path, query) {
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domain = normalizeDomain(domain);
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var url = normalizePath(path) + normalizeQuery(query);
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if (domain) {
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url = protocol + domain + url;
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}
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return url;
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};
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var load = function (config, protocol, domains, path, query, cb, handleCb) {
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var tryRequest = function (at) {
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// 处理jsonp回调，这里为了保证每个不同jsonp都有唯一的回调函数
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if(handleCb){
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var cbName = "geetest_" + random();
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// 需要与预先定义好cbname参数，删除对象
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window[cbName] = bind(handleCb, null, cbName);
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query.callback = cbName;
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}
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var url = makeURL(protocol, domains[at], path, query);
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loadScript(url, function (err) {
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if (err) {
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// 超时或者出错的时候 移除回调
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if(cbName){
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try {
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window[cbName] = function(){
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window[cbName] = null;
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}
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} catch (e) {}
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}
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if (at >= domains.length - 1) {
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cb(true);
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// report gettype error
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} else {
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tryRequest(at + 1);
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}
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} else {
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cb(false);
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}
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}, config.timeout);
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};
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tryRequest(0);
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};
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var jsonp = function (domains, path, config, callback) {
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var handleCb = function (cbName, data) {
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// 保证只执行一次，全部超时的情况下不会再触发;
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if (data.status == 'success') {
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callback(data.data);
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} else if (!data.status) {
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callback(data);
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} else {
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//接口有返回，但是返回了错误状态，进入报错逻辑
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callback(data);
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}
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window[cbName] = undefined;
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try {
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delete window[cbName];
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} catch (e) {
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}
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};
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load(config, config.protocol, domains, path, {
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captcha_id: config.captchaId,
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challenge: config.challenge || uuid(),
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client_type: MOBILE? 'h5':'web',
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risk_type: config.riskType,
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user_info: config.userInfo,
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call_type: config.callType,
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lang: config.language? config.language : navigator.appName === 'Netscape' ? navigator.language.toLowerCase() : navigator.userLanguage.toLowerCase()
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}, function (err) {
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// 网络问题接口没有返回，直接使用本地验证码，走宕机模式
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// 这里可以添加用户的逻辑
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if(err && typeof config.offlineCb === 'function'){
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// 执行自己的宕机
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config.offlineCb();
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return;
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}
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if(err){
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callback(config._get_fallback_config());
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}
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}, handleCb);
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};
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var reportError = function (config, url) {
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load(config, config.protocol, ['monitor.geetest.com'], '/monitor/send', {
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time: Date.now().getTime(),
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captcha_id: config.gt,
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challenge: config.challenge,
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exception_url: url,
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error_code: config.error_code
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}, function (err) {})
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}
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var throwError = function (errorType, config, errObj) {
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var errors = {
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networkError: '网络错误',
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gtTypeError: 'gt字段不是字符串类型'
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};
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if (typeof config.onError === 'function') {
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config.onError({
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desc: errObj.desc,
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msg: errObj.msg,
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code: errObj.code
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});
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} else {
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throw new Error(errors[errorType]);
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}
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};
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var detect = function () {
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return window.Geetest || document.getElementById("gt_lib");
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};
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if (detect()) {
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status.slide = "loaded";
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}
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var GeetestIsLoad = function (fname) {
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var GeetestIsLoad = false;
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var tags = { js: 'script', css: 'link' };
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var tagname = tags[fname.split('.').pop()];
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if (tagname !== undefined) {
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var elts = document.getElementsByTagName(tagname);
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for (var i in elts) {
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if ((elts[i].href && elts[i].href.toString().indexOf(fname) > 0)
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|| (elts[i].src && elts[i].src.toString().indexOf(fname) > 0)) {
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GeetestIsLoad = true;
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}
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}
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}
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return GeetestIsLoad;
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};
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window.initGeetest4 = function (userConfig,callback) {
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var config = new Config(userConfig);
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if (userConfig.https) {
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config.protocol = 'https://';
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} else if (!userConfig.protocol) {
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config.protocol = window.location.protocol + '//';
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}
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if (isObject(userConfig.getType)) {
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config._extend(userConfig.getType);
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}
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jsonp(config.apiServers , config.typePath, config, function (newConfig) {
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//错误捕获，第一个load请求可能直接报错
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var newConfig = camelizeKeys(newConfig);
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if(newConfig.status === 'error'){
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return throwError('networkError', config, newConfig);
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}
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var type = newConfig.type;
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if(config.debug){
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new _Object(newConfig)._extend(config.debug)
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}
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var init = function () {
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config._extend(newConfig);
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callback(new window.Geetest4(config));
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};
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callbacks[type] = callbacks[type] || [];
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var s = status[type] || 'init';
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if (s === 'init') {
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status[type] = 'loading';
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callbacks[type].push(init);
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if(newConfig.gctPath){
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load(config, config.protocol, Object.hasOwnProperty.call(config, 'staticServers') ? config.staticServers : newConfig.staticServers || config.staticServers , newConfig.gctPath, null, function (err){
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if(err){
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throwError('networkError', config, {
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code: '60205',
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msg: 'Network failure',
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desc: {
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detail: 'gct resource load timeout'
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}
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});
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}
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})
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}
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load(config, config.protocol, Object.hasOwnProperty.call(config, 'staticServers') ? config.staticServers : newConfig.staticServers || config.staticServers, newConfig.bypass || (newConfig.staticPath + newConfig.js), null, function (err) {
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if (err) {
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status[type] = 'fail';
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throwError('networkError', config, {
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code: '60204',
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msg: 'Network failure',
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desc: {
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detail: 'js resource load timeout'
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}
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});
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} else {
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status[type] = 'loaded';
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var cbs = callbacks[type];
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for (var i = 0, len = cbs.length; i < len; i = i + 1) {
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var cb = cbs[i];
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if (isFunction(cb)) {
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cb();
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}
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}
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callbacks[type] = [];
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}
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});
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} else if (s === "loaded") {
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// 判断gct是否需要重新加载
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if(!GeetestIsLoad(newConfig.gctPath)){
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load(config, config.protocol, Object.hasOwnProperty.call(config, 'staticServers') ? config.staticServers : newConfig.staticServers || config.staticServers , newConfig.gctPath, null, function (err){
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if(err){
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throwError('networkError', config, {
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code: '60205',
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msg: 'Network failure',
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desc: {
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detail: 'gct resource load timeout'
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}
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});
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}
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})
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}
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return init();
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} else if (s === "fail") {
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throwError('networkError', config, {
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code: '60204',
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msg: 'Network failure',
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desc: {
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detail: 'js resource load timeout'
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}
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});
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} else if (s === "loading") {
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callbacks[type].push(init);
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}
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});
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};
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})(window);
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