Net Core 实现谷歌翻译ApI 免费版

 1 public class HttpHelper
 2     {
 3         /// <summary>
 4         /// 请求
 5         /// </summary>
 6         /// <param name="url">地址</param>
 7         /// <param name="args">参数</param>
 8         /// <returns></returns>
 9         public static string GetRequest(string url, CookieContainer cookieContainer, Dictionary<string, dynamic> args)
10         {
11             try
12             {
13                 if (args.Count > 0)
14                 {
15                     var argStr = string.Empty;
16 
17                     foreach (var item in args)
18                     {
19                         if (item.Key == null || item.Value == null)
20                         {
21                             continue;
22                         }
23                         argStr = $"{argStr}{item.Key}={item.Value}&";
24                     }
25 
26                     url = $"{url}?{argStr.TrimEnd(‘&‘)}";
27                 }
28 
29                 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
30                 request.Method = "get";
31                 request.Timeout = 100000;
32                 request.CookieContainer = cookieContainer;
33                 request.UserAgent = GetUserAgent();
34                 request.Headers.Add("X-Requested-With:XMLHttpRequest");
35                 request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";
36                 using (var webResponse = (HttpWebResponse)request.GetResponse())
37                 {
38                     using (var reader = new StreamReader(webResponse.GetResponseStream(), Encoding.UTF8))
39                     {
40 
41                         return reader.ReadToEnd();
42                     }
43                 }
44             }
45             catch (Exception)
46             {
47                 return string.Empty;
48             }
49         }
50         
51         /// <summary>
52         /// 用户代理
53         /// </summary>
54         /// <returns></returns>
55         private static string GetUserAgent()
56         {
57             var userAgents = new List<string>
58             {
59                 "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/22.0.1207.1 Safari/537.1",
60                 "Mozilla/5.0 (X11; CrOS i686 2268.111.0) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11",
61                 "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.6 (KHTML, like Gecko) Chrome/20.0.1092.0 Safari/536.6",
62                 "Mozilla/5.0 (Windows NT 6.2) AppleWebKit/536.6 (KHTML, like Gecko) Chrome/20.0.1090.0 Safari/536.6",
63                 "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/19.77.34.5 Safari/537.1",
64                 "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.9 Safari/536.5",
65                 "Mozilla/5.0 (Windows NT 6.0) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.36 Safari/536.5",
66                 "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1063.0 Safari/536.3",
67                 "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1063.0 Safari/536.3",
68                 "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_0) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1063.0 Safari/536.3",
69                 "Mozilla/5.0 (Windows NT 6.2) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1062.0 Safari/536.3",
70                 "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1062.0 Safari/536.3",
71                 "Mozilla/5.0 (Windows NT 6.2) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1061.1 Safari/536.3",
72                 "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1061.1 Safari/536.3",
73                 "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1061.1 Safari/536.3",
74                 "Mozilla/5.0 (Windows NT 6.2) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1061.0 Safari/536.3",
75                 "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.24 (KHTML, like Gecko) Chrome/19.0.1055.1 Safari/535.24",
76                 "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/535.24 (KHTML, like Gecko) Chrome/19.0.1055.1 Safari/535.24",
77                 "Mozilla/5.0 (Macintosh; U; Mac OS X Mach-O; en-US; rv:2.0a) Gecko/20040614 Firefox/3.0.0 ",
78                 "Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.5; en-US; rv:1.9.0.3) Gecko/2008092414 Firefox/3.0.3",
79                 "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1) Gecko/20090624 Firefox/3.5",
80                 "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.14) Gecko/20110218 AlexaToolbar/alxf-2.0 Firefox/3.6.14",
81                 "Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.5; en-US; rv:1.9.2.15) Gecko/20110303 Firefox/3.6.15",
82                 "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0.1) Gecko/20100101 Firefox/4.0.1",
83                 "Opera/9.80 (Windows NT 6.1; U; en) Presto/2.8.131 Version/11.11",
84                 "Opera/9.80 (Android 2.3.4; Linux; Opera mobi/adr-1107051709; U; zh-cn) Presto/2.8.149 Version/11.10",
85                 "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/531.21.8 (KHTML, like Gecko) Version/4.0.4 Safari/531.21.10",
86                 "Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US) AppleWebKit/533.17.8 (KHTML, like Gecko) Version/5.0.1 Safari/533.17.8",
87                 "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.19.4 (KHTML, like Gecko) Version/5.0.2 Safari/533.18.5",
88                 "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0",
89                 "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0)",
90                 "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)",
91                 "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)"
92             };
93 
94             return userAgents.OrderBy(x => Guid.NewGuid()).First();
95         }
96     }

  1 /// <summary>
  2     /// 翻译 助手
  3     /// </summary>
  4     public static class TranslationHelper
  5     {
  6         /// <summary>
  7         /// Chakra 上下文
  8         /// </summary>
  9         private static readonly ChakraContext _chakraContext;
 10 
 11         /// <summary>
 12         /// Cookie
 13         /// </summary>
 14         private static readonly CookieContainer _cookieContainer;
 15 
 16         /// <summary>
 17         /// 请求地址
 18         /// </summary>
 19         private static readonly string _baseUrl;
 20 
 21         /// <summary>
 22         /// 静态
 23         /// </summary>
 24         static TranslationHelper()
 25         {
 26             var runtime = ChakraRuntime.Create();
 27 
 28             _baseUrl = "http://translate.google.cn/translate_a/single";
 29             _cookieContainer = new CookieContainer();
 30             _chakraContext = runtime.CreateContext(true);
 31 
 32             var basePath = PlatformServices.Default.Application.ApplicationBasePath;
 33             var jsFileText = File.ReadAllText($@"{basePath}\gettk.js");
 34 
 35             _chakraContext.RunScript(jsFileText); //运行脚本
 36         }
 37 
 38         /// <summary>
 39         /// 获取翻译结果(需要翻译的文字默认使用中文)
 40         /// </summary>
 41         /// <param name="toLang">语言</param>
 42         /// <param name="originalText">待翻译的文本</param>
 43         /// <returns></returns>
 44         public static string GetTranslation(this string toLang, string originalText)
 45         {
 46             if (string.IsNullOrEmpty(toLang))
 47             {
 48                 return toLang;
 49             }
 50             if (string.IsNullOrEmpty(originalText))
 51             {
 52                 return originalText;
 53             }
 54 
 55             return GetTranslation("zh-cn", toLang, originalText);
 56 
 57         }
 58 
 59         /// <summary>
 60         /// 获取翻译结果
 61         /// </summary>
 62         /// <param name="fromLang">需要翻译的语言</param>
 63         /// <param name="toLang">翻译结果的语言</param>
 64         /// <param name="originalText">待翻译文本</param>
 65         /// <returns></returns>
 66         public static string GetTranslation(this string fromLang, string toLang, string originalText)
 67         {
 68             var args = new Dictionary<string, dynamic>
 69             {
 70                 { "client", "t" },
 71                 { "sl", fromLang },
 72                 { "tl", toLang },
 73                 { "dt", "t" },
 74                 { "tk", GetTK(originalText) },
 75                 { "text", HttpUtility.UrlEncode(originalText) }
 76             };
 77 
 78             var result = HttpHelper.GetRequest(_baseUrl, _cookieContainer, args);
 79 
 80             return result.FormattedJson();
 81         }
 82 
 83         /// <summary>
 84         /// 获取TK
 85         /// </summary>
 86         /// <param name="originalText"></param>
 87         /// <returns></returns>
 88         private static string GetTK(string originalText)
 89         {
 90             _chakraContext.GlobalObject.WriteProperty("originalText", originalText);
 91             return _chakraContext.RunScript("getTK(originalText)");
 92         }
 93 
 94         /// <summary>
 95         /// 格式化Json
 96         /// </summary>
 97         /// <param name="jsonStr">Json</param>
 98         /// <returns></returns>
 99         private static string FormattedJson(this string jsonStr)
100         {
101             if (string.IsNullOrEmpty(jsonStr))
102             {
103                 return string.Empty;
104             }
105 
106             var array = JsonConvert.DeserializeObject<JArray>(jsonStr);
107 
108             var result = array[0][0][0].ToString();
109 
110             return result;
111         }
112 
113     }