C# 解析迅雷链接成正常的Http链接

目前热门剧司马懿第一集的迅雷下载地址是：

thunder://QUFodHRwOi8vZGwxMjIuODBzLmltOjkyMC8xNzA2L1vlpKflhptTU+mprOaHv+S5i+WGm1PogZRNXeesrDAx6ZuGL1vlpKflhptTU+mprOaHv+S5i+WGm1PogZRNXeesrDAx6ZuGX2JkLm1wNFpa

去掉thunder://之后是

QUFodHRwOi8vZGwxMjIuODBzLmltOjkyMC8xNzA2L1vlpKflhptTU+mprOaHv+S5i+WGm1PogZRNXeesrDAx6ZuGL1vlpKflhptTU+mprOaHv+S5i+WGm1PogZRNXeesrDAx6ZuGX2JkLm1wNFpa

将其以Base64解码后是

AAhttp://dl122.80s.im:920/1706/[大军SS马懿之军S联M]第01集/[大军SS马懿之军S联M]第01集_bd.mp4ZZ

去掉前缀AA，后缀ZZ是

http://dl122.80s.im:920/1706/[大军SS马懿之军S联M]第01集/[大军SS马懿之军S联M]第01集_bd.mp4

这些处理都比较简单，写成代码是：

class XunleiLinkParser { public String parse(String link) { String retval = ""; retval = link.Substring(10);// 去掉thunder:// retval = DecodeBase64("utf-8",retval); retval = retval.Substring(2, retval.Length - 4);// 去掉前面的AA后面的ZZ return retval; } public static string DecodeBase64(string code_type, string code) { string decode = ""; byte[] bytes = Convert.FromBase64String(code); //将2进制编码转换为8位无符号整数数组. try { decode = Encoding.GetEncoding(code_type).GetString(bytes); //将指定字节数组中的一个字节序列解码为一个字符串。 } catch { decode = code; } return decode; } }

测试语句如下：

static void Main(string[] args) { XunleiLinkParser x = new XunleiLinkParser(); System.Console.WriteLine(x.parse("thunder://QUFodHRwOi8vZGwxMjIuODBzLmltOjkyMC8xNzA2L1vlpKflhptTU+mprOaHv+S5i+WGm1PogZRNXeesrDAx6ZuGL1vlpKflhptTU+mprOaHv+S5i+WGm1PogZRNXeesrDAx6ZuGX2JkLm1wNFpa")); }















本文转自勤劳的绿草-sky博客园博客，原文链接：http://www.cnblogs.com/xiandedanteng/p/7095201.html，如需转载请自行联系原作者