1 /// <summary>
 2 /// 获取验证码
 3 /// </summary>
 4 void GetVerifyCode()
 5 {
 6     VerifyCode.Source = null;
 7
 8     // 1. 先请求登录地址，获取到当前用户的会话cookie
 9     HttpResponseParameter responseParameter = HttpProvider.Excute(new HttpRequestParameter
10     {
11         IsPost = false,
12         Url = "http://passport.jikexueyuan.com/sso/login"
13     });
14     SessionCookie = responseParameter.Cookie;
15
16     // 2.带上会话cookie请求验证码图片（保证是当前用户）
17     HttpProvider.Excute(new HttpRequestParameter
18     {
19         Url = string.Format("http://passport.jikexueyuan.com/sso/verify?t={0}", DateTime.Now.ToString("yyyyMMddHHmmsss")),
20         Cookie = SessionCookie,
21         ResponseEnum = HttpResponseEnum.Stream,
22         StreamAction = x =>
23         {
24             MemoryStream ms = new MemoryStream();
25             byte[] buffer = new byte[1024];
26             while (true)
27             {
28                 int sz = x.Read(buffer, 0, buffer.Length);
29                 if (sz == 0) break;
30                 ms.Write(buffer, 0, sz);
31             }
32             ms.Position = 0;
33
34             BitmapImage bmp = new BitmapImage();
35             bmp.BeginInit();
36             bmp.StreamSource = new MemoryStream(ms.ToArray());
37             bmp.EndInit();
38
39             VerifyCode.Source = bmp;
40
41             ms.Close();
42         }
43     });
44 }

 1 /// <summary>
 2 /// 登录方法
 3 /// </summary>
 4 /// <param name="userName">账号</param>
 5 /// <param name="userPwd">密码</param>
 6 /// <param name="verifyCode">验证码</param>
 7 void LoginDo(string userName, string userPwd, string verifyCode)
 8 {
 9     // 1.登录
10     IDictionary<string, string> postData = new Dictionary<string, string>();
11     postData.Add("referer", HttpUtility.UrlEncode("http://www.jikexueyuan.com/"));
12     postData.Add("uname", userName);
13     postData.Add("password", userPwd);
14     postData.Add("is_ajax", "1");
15     postData.Add("verify", verifyCode);
16     HttpResponseParameter responseParameter = HttpProvider.Excute(new HttpRequestParameter
17     {
18         Url = "http://passport.jikexueyuan.com/submit/login?is_ajax=1",
19         IsPost = true,
20         Parameters = postData,
21         Cookie = SessionCookie
22     });
23
24     LoginResultEntity loginResult = responseParameter.Body.DeserializeObject<LoginResultEntity>();
25     if (loginResult.status == 1)
26     {
27         // 2.登录成功，保存cookie
28         CookieStoreInstance.CurrentCookie = responseParameter.Cookie;
29     }
30
31     //MessageBox.Show(string.Format("body={0},cookie={1}", Unicode2String(responseParameter.Body),
32     //    responseParameter.Cookie.CookieString));
33 }

 1 public List<LessonEntity> GetLessonEntities(string url, HttpCookieType sessionCookie)
 2 {
 3     // 请求课时列表，解析html源码，并提取课时 信息和链接
 4     HttpResponseParameter responseParameter = HttpProvider.Excute(new HttpRequestParameter()
 5     {
 6         IsPost = false,
 7         Url = url,
 8         Encoding = Encoding.UTF8,
 9         Cookie = sessionCookie
10     });
11
12     List<LessonEntity> results = new List<LessonEntity>();
13
14     HtmlDocument htmlDocument = new HtmlDocument();
15     htmlDocument.LoadHtml(responseParameter.Body);
16     HtmlNode rootNode = htmlDocument.DocumentNode;
17     HtmlNodeCollection lessonNodes = rootNode.SelectNodes("//div[@id=\"pager\"]/div[3]/div[2]/div[2]/ul/li");
18     foreach (HtmlNode lessonNode in lessonNodes)
19     {
20         HtmlNode aNode = lessonNode.SelectSingleNode("div[1]/h2[1]/a[1]");
21         if (aNode != null)
22         {
23             results.Add(new LessonEntity
24             {
25                 Title = aNode.InnerText.Trim(),
26                 Href = aNode.GetAttributeValue("href", string.Empty)
27             });
28         }
29     }
30
31     return results;
32 }

public string GetVideoUrl(string url, HttpCookieType sessionCookie)
{HttpResponseParameter responseParameter = HttpProvider.Excute(new HttpRequestParameter{Url = url,Cookie = sessionCookie});// 正则提前视频文件 地址string result = Regex.Match(responseParameter.Body, "<source.*src=\"(.+?\").*/>").Groups[1].Value.Replace("\"", string.Empty);sessionCookie = responseParameter.Cookie;return result;
}

public void DownloadVideo(string filePath, string url, HttpCookieType sessionCookie, Action action = null)
{string folder = Path.GetDirectoryName(filePath);if (!string.IsNullOrEmpty(folder) && !Directory.Exists(folder)){// 如果目录文件夹不存在， 则创建
        Directory.CreateDirectory(folder);}if (action != null){action();}HttpProvider.Excute(new HttpRequestParameter{Url = url,ResponseEnum = HttpResponseEnum.Stream,Cookie = sessionCookie,StreamAction = x =>{NetExtensions.WriteFile(filePath, x);}});//WebClient webClient = new WebClient();//webClient.DownloadFile(new Uri(url, UriKind.RelativeOrAbsolute), filePath);
}

 1 public void DownloadCode(string filePath, string courseId, HttpCookieType sessionCookie)
 2 {
 3     if (File.Exists(filePath)) return;
 4
 5     HttpResponseParameter responseParameter = HttpProvider.Excute(new HttpRequestParameter
 6     {
 7         Url = string.Format("http://www.jikexueyuan.com/course/downloadRes?course_id={0}", courseId),
 8         Cookie = sessionCookie
 9     });
10     CodeDownloadResultEntity result = responseParameter.Body.DeserializeObject<CodeDownloadResultEntity>();
11     if (result.code == 200)
12     {
13         string folder = Path.GetDirectoryName(filePath);
14         if (!string.IsNullOrEmpty(folder) && !Directory.Exists(folder))
15         {
16             // 如果目录文件夹不存在， 则创建
17             Directory.CreateDirectory(folder);
18         }
19
20         WebClient webClient = new WebClient();
21         webClient.DownloadFile(new Uri(result.data.url, UriKind.RelativeOrAbsolute), filePath);
22     }
23 }