/// <summary>
/// if login failed, re-navigate to the target Uri, otherwise, show status detail of you.
/// </summary>
/// <param name="htmlContent">html of websites</param>
private void CheckIfLoginSucceed(LoginReturnBag loginReturn)
{
var doc = new HtmlDocument();
if (loginReturn.HtmlResouces == null) // login failed, redirect to the login page.
{
ReportHelper.ReportAttention(GetUIString("Login_Failed"));
SettingsHelper.SaveSettingsValue(SettingsSelect.IsAutoLogin, false);
RedirectToLoginAgain();
return;
}
doc.LoadHtml(loginReturn.HtmlResouces);
var rootNode = doc.DocumentNode;
var studentStatus = rootNode.SelectSingleNode("//span[@class='t']");
if (studentStatus == null) // login failed, redirect to the login page.
{
ReportHelper.ReportAttention(GetUIString("Login_Failed"));
SettingsHelper.SaveSettingsValue(SettingsSelect.IsAutoLogin, false);
RedirectToLoginAgain();
return;
}
else // login successful, save login status and show it.
{
if (!studentStatus.InnerText.Contains("请先登录再使用"))
{
SaveLoginStatus(studentStatus, loginReturn.CookieBag);
LoginPopup.IsOpen = false;
SetVisibility(MainPopupGrid, false);
if (thisPageType == DataFetchType.Index_ReLogin)
{
RedirectToPageBefore();
return;
}
SetVisibility(StatusGrid, true);
}
else
{
ReportHelper.ReportAttention(GetUIString("Login_Failed"));
SettingsHelper.SaveSettingsValue(SettingsSelect.IsAutoLogin, false);
RedirectToLoginAgain();
return;
}
}
}
/// <summary>
/// Login into LNU, should only call it when login-cookie is gone.
/// </summary>
/// <param name="client"></param>
/// <param name="user"></param>
/// <param name="password"></param>
/// <returns></returns>
public static async Task <LoginReturnBag> PostLNULoginCallback(HttpClient client, string user, string password)
{
/// Changes for Windows Store
//var urlString = string.Format("http://jwgl.lnu.edu.cn/pls/wwwbks/bks_login2.login?stuid={0}&pwd={1}", user, password);
var urlString = string.Format("https://notificationhubforuwp.azurewebsites.net/LNU/Redirect?user={0}&psw={1}", user, password);
var bag = new LoginReturnBag();
try { // do not dispose, so that the global undirect httpclient will stay in referenced. dispose it when you need.
var httpClient = client;
//httpClient.DefaultRequestHeaders.Host = new Windows.Networking.HostName("jwgl.lnu.edu.cn");
//httpClient.DefaultRequestHeaders.Referer = new Uri("http://jwgl.lnu.edu.cn/zhxt_bks/xk_login.html");
///
using (var response = await LOGIN_POST(client, urlString)) {
var returnCookies = UnRedirectCookiesManager.GetCookies(new Uri("https://notificationhubforuwp.azurewebsites.net/"));
if (returnCookies.Count == 0)
{
throw new AccessUnPassedException("Login Failed: no login-success cookie received.");
}
/// Changes for Windows Store
string content = default(string);
var value = response.Headers.TryGetValue("Set-Cookie", out content);
if (value)
{
content = content.Split(',')[0].Replace(";", "@").Split('@')[0].Replace("=", "@").Split('@')[1];
HttpCookie cookie = new HttpCookie("ACCOUNT", "jwgl.lnu.edu.cn", "/pls/wwwbks/");
cookie.Value = content;
/// DEBUG Method
Debug.WriteLine("DEBUG -----> " + content);
///
UnRedirectCookiesManager.SetCookie(cookie);
bag.CookieBag = cookie;
}
///
using (var request = GET(client, "http://jwgl.lnu.edu.cn/pls/wwwbks/bks_login2.loginmessage")) {
request.Headers.Host = new Windows.Networking.HostName("jwgl.lnu.edu.cn");
request.Headers.Referer = new Uri("http://jwgl.lnu.edu.cn/zhxt_bks/xk_login.html");
var result = await httpClient.SendRequestAsync(request);
bag.HtmlResouces = (await CastStreamContentToString(result)).ToString();
}
}
} catch (ObjectDisposedException ex) { // when web connect recovery , recreate a new instance to implemente a recursive function to solve the problem.
Debug.WriteLine("\nFailed：\n" + ex.StackTrace);
unRedirectHttpClient = null;
return(await PostLNULoginCallback(UnRedirectHttpClient, user, password));
} catch (COMException ex) { // it is obvious that the internrt connect go wrong.
Debug.WriteLine("\nFailed：\n" + ex.StackTrace);
return(null);
} catch (AccessUnPassedException ex) {
Debug.WriteLine("\nFailed：\n" + ex.StackTrace);
unRedirectHttpClient = null;
return(bag);
} catch (Exception ex) { // unkown error, report it.
Debug.WriteLine("\nFailed：\n" + ex.StackTrace);
return(null);
}
return(bag);
}
/// <summary>
/// if login failed, re-navigate to the target Uri, otherwise, show status detail of you.
/// </summary>
/// <param name="htmlContent">html of websites</param>
private void CheckIfLoginSucceed(LoginReturnBag loginReturn)
{
}
