我正在使用 USB 调制解调器，并注意到在我浏览的每个网站的标签javascript前都添加了代码！</body>
<script type = 'text/javascript' id ='1as2ys' charset='utf-8' src='http://105.203.255.69:8080/www/default/base.js'></script>
我查看了base.js注入 URL 中的这个文件，发现了相关但不确定的http://105.203.255.69:8080/www/default/base.js代码Huawei Technologies此代码有何用途？因为它对我来说看起来很烦人。
更新这是里面的代码base.js
/**
* Huawei Technologies http://www.huawei.com
*(c) 2014-2015
*@author Kunal 70924
*@modified 11.12.2014
*@usage The Web URL of this file is used in DMC Proxy Configuration to insert toolbar.
*/
/**
* This anonymous function executes automatically to insert toolbar template & related resources.
* It also parses the SCG specified parameters and passes it to TLBS
*
* @param None
* @return None
*/
(function() {
try {
top.tlbscdr = {};
top.retlbs = {};
top.tlbscdr.jscdr = [];
top.retlbs.status = false; //为true时表示刷新过tlbs
top.retlbs.langStatus = false; //为true时表示已ç»è¿›å…¥è¿‡è¯è¨€è®¾ç½®
top.retlbs.langProcess = false; //为true时表示在è¯è¨€è®¾ç½®è¿‡ç¨‹ä¸
top.retlbs.rejs = function(){
var tlbstoolbar = document.getElementById('tlbstoolbar');
var iframe = document.getElementsByTagName('iframe')[0];
var toolget = document.getElementById('toolget');
var toolcomponentcss = document.getElementById('toolcomponentcss');
var toolstyle = document.getElementById('toolstyle');
var toolbarstyle = document.getElementById('toolbarstyle');
document.body.removeChild(tlbstoolbar);
// document.body.removeChild(iframe);
document.head.removeChild(toolget);
document.head.removeChild(toolcomponentcss);
document.head.removeChild(toolstyle);
document.head.removeChild(toolbarstyle);
top.retlbs.status = true;
top.tlbsEmbed = false;
createjs();
};
var cdate = new Date();
var startcdr = {
'jsname': 'base.js',
'jsexetype': '1',
'btime': cdate
};
top.tlbscdr.jscdr.push(startcdr);
/**
* get url parameter.for examplate url:http://www.baidu.com?p1=1&p2=2
* getparam('p1') ==1;
*/
var getparam = function(name) {
try {
var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
var r = top.window.location.search.substr(1).match(reg);
if (r != null) return unescape(r[2]);
return "";
} catch (e) {}
};
/**
* This function creates a new iFrame element in the service page and then adds all template resources
* as given in the response from JSREQ
*
* @param None
* @return None
*/
var embedjs = function() {
if (top.tlbs && !top.tlbsEmbed) {
top.tlbsEmbed = true;
var head = top.document.getElementsByTagName('head')[0];
var tlbs = top.tlbs,
js = top.tlbs.iframejs.split("|"),
html = '<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />';
for (var i = 0; i < js.length; i++) {
if (js[i].indexOf(".js") != -1) {
html += '<script src="' + js[i] + '" defer charset="UTF-8"></script>';
} else if (js[i].indexOf(".css") != -1) {
var link = document.createElement("link");
link.id = "toolcomponentcss";
link.rel = "stylesheet";
link.type = "text/css";
link.charset = "UTF-8";
link.href = js[i];
head.appendChild(link);
}
}
html += '</head></html>';
var iframe = document.createElement("iframe");
iframe.style.display = "none";
document.body.appendChild(iframe);
try {
var doc = iframe.contentWindow.document;
doc.write(html);
doc.close();
} catch (e) {
if (/MSIE/g.test(navigator.userAgent)) {
if (location.href.indexOf('www.people.com.cn') >= 0 || location.href.indexOf('www.caijing.com.cn') >= 0) {
return;
}
}
iframe.src = "javascript:void((function(){document.open();document.domain='" + document.domain + "';document.write('" + html + "');document.close()})())";
}
/**To support angularJS ng-hide and show**/
var angularstyle = document.createElement('style');
angularstyle.id = "toolstyle";
angularstyle.type = 'text/css';
angularstyle.innerHTML = '@charset "UTF-8";[ng\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide:not(.ng-hide-animate){display:none !important;}ng\\:form{display:block;}';
head.appendChild(angularstyle);
} else {
top.nobar = true;
}
};
/**
* This function calls embedjs function once browser is ready to load a script element.
*
* @param Script element
* @return None
*/
var loadjs = function(s) {
if (s.readyState) {
s.onreadystatechange = function() {
if (s.readyState == "loaded" || s.readyState == "complete") {
s.onreadystatechange = null;
embedjs();
}
};
} else {
s.onload = function() {
embedjs();
};
}
};
/**
* This function parses all SCG provided parameters and prepares attribute value pair in URI format
*
* @param Attribute List as array
* @return parameter URL with AVPs
*/
var getScgParams = function(attr) {
var len = attr.length,
p = '';
for (var i = 0; i < len; i++) {
if (!(/^(src|type|id)$/.test(attr[i].name)))
p = p + '&' + attr[i].name + "=" + attr[i].value;
}
return p;
};
/**
* This function queries script element inserted by Proxy and calls other function to insert iFrame
* and get list of SCG parameters. It also fetches the resource list from Resource Dispatcher and
* adds to the head of the service page.
*
* @param Attribute List as array
* @return parameter URL with AVPs
*/
var createjs = function() {
var d = document,
t = d.getElementById('1qa2ws'),
u = t.getAttribute("src"),
h = d.head || d.getElementsByTagName("head")[0],
a = t.attributes,
scgparam = getScgParams(a);
s = d.createElement("script");
loadjs(s);
top.apptlbs = {};
s.id = "toolget";
s.charset = "UTF-8";
var Mytime = new Date();
var Time = Mytime.getTime();
var toolbarURL = u.split('www/')[0];
var website = top.window.location ? top.window.location.hostname + (top.window.location.port ? ':' + top.window.location.port : '') : '';
s.src = toolbarURL + "get?time=" + Time + "&tlbsip=" + toolbarURL + "&website=" + website + encodeURI(scgparam);
var appkey = getparam('appkey');
if (appkey && (('http://' + website + '/') == toolbarURL)) {
s.src = s.src + "&appkey=" + appkey;
top.apptlbs.appkey = appkey;
}
h.appendChild(s);
};
if (!top.basestate && parent == self) {
if (top.window.location.href.indexOf("youm7.com") > 0 ) {
setTimeout(createjs,5000);
}else{
createjs();
}
top.basestate = true;
}
cdate = new Date();
var endcdr = {
'jsname': 'base.js',
'jsexetype': '2',
'btime': cdate
};
top.tlbscdr.jscdr.push(endcdr);
//TODO: Refer CDR writing in success cases of insertion
} catch (e) {
var d = document;
var t = d.getElementById('1qa2ws');
var u = t.getAttribute("src");
var params = e.message;
params += "&time=" + new Date().getTime();
var js = document.createElement('script');
js.onload = js.onreadystatechange = function() {
if (!this.readyState || this.readyState === 'loaded' || this.readyState === 'complete') {
js.onload = js.onreadystatechange = null;
document.body.removeChild(js);
}
};
//TODO: Uncoment below & Refer CDR writing in error cases of insertion
//js.src = u.split('tlbsgui')[0] + "tlbsserver/stagelog?" + params;
//document.body.appendChild(js);
}
})(window)