/// <summary>
/// Gets EAP-config file, either directly or after browser authentication.
/// Prepares for redirect if no EAP-config.
/// </summary>
/// <returns>EapConfig object.</returns>
/// <exception cref="EduroamAppUserException">description</exception>
public async Task <EapConfig> DownloadEapConfig(IdentityProviderProfile profile)
{
if (string.IsNullOrEmpty(profile?.Id))
{
return(null);
}
// if OAuth
if (profile.oauth || !string.IsNullOrEmpty(profile.redirect))
{
return(null);
}
try
{
return(await Task.Run(()
=> IdpDownloader.DownloadEapConfig(profile.Id)
));
}
catch (ApiUnreachableException e)
{
throw new EduroamAppUserException("HttpRequestException",
"Couldn't connect to the server.\n\n" +
"Make sure that you are connected to the internet, then try again.\n" +
"Exception: " + e.Message);
}
catch (ApiParsingException e)
{
throw new EduroamAppUserException("xml parse exception",
"The institution or profile is either not supported or malformed. " +
"Please select a different institution or profile.\n\n" +
"Exception: " + e.Message);
}
}
/// <summary>
/// downloads eap config based on profileId
/// seperated into its own function as this can happen either through
/// user selecting a profile or a profile being autoselected
/// </summary>
/// <param name="profileId"></param>
/// <param name="eapConfigXml"></param>
/// <param name="skipOverview"></param>
/// <returns>True if function navigated somewhere</returns>
/// <exception cref="XmlException">Parsing eap-config failed</exception>
private async Task <bool> HandleProfileSelect(string profileId, string eapConfigXml = null, bool skipOverview = false)
{
LoadPageLoading();
IdentityProviderProfile profile = null;
if (!string.IsNullOrEmpty(profileId) &&
!string.IsNullOrEmpty(eapConfigXml))
{
// TODO: ^perhaps reuse logic from PersistingStore.IsReinstallable
Debug.WriteLine(nameof(eapConfigXml) + " was set", category: nameof(HandleProfileSelect));
eapConfig = EapConfig.FromXmlData(eapConfigXml);
eapConfig.ProfileId = profileId;
}
else
{
Debug.WriteLine(nameof(eapConfigXml) + " was not set", category: nameof(HandleProfileSelect));
profile = IdpDownloader.GetProfileFromId(profileId);
try
{
eapConfig = await DownloadEapConfig(profile);
}
catch (EduroamAppUserException ex) // TODO: catch this on some higher level
{
MessageBox.Show(
ex.UserFacingMessage,
caption: "geteduroam - Exception");
eapConfig = null;
}
}
// reenable buttons after LoadPageLoading() disables them
btnBack.IsEnabled = true;
btnNext.IsEnabled = true;
if (eapConfig != null)
{
if (!CheckIfEapConfigIsSupported(eapConfig))
{
return(false);
}
if (HasInfo(eapConfig) && !skipOverview)
{
LoadPageProfileOverview();
return(true);
}
if (ConnectToEduroam.EnumerateCAInstallers(eapConfig)
.Any(installer => installer.IsInstalledByUs || !installer.IsInstalled))
{
LoadPageCertificateOverview();
return(true);
}
LoadPageLogin();
return(true);
}
else if (!string.IsNullOrEmpty(profile?.redirect))
{
// TODO: add option to go to selectmethod from redirect
LoadPageRedirect(new Uri(profile.redirect));
return(true);
}
else if (profile?.oauth ?? false)
{
LoadPageOAuthWait(profile);
return(true);
}
return(false);
}
/// <summary>
/// Logic for navigating to forward
/// </summary>
/// <exception cref="XmlException">TODO catch</exception>
public async void NextPage()
{
// adds current form to history for easy backtracking
historyFormId.Add(currentFormId);
switch (currentFormId)
{
case FormId.InstalledProfile:
LoadPageMainMenu();
break;
case FormId.MainMenu:
if (LocalEapConfig != null)
{
eapConfig = LocalEapConfig;
LoadPageProfileOverview();
break;
}
if (pageMainMenu.UseExtracted)
{
eapConfig = ExtractedEapConfig;
LoadPageProfileOverview();
break;
}
LoadPageSelectInstitution();
break;
case FormId.SelectInstitution:
var profiles = IdpDownloader.GetIdentityProviderProfiles(pageSelectInstitution.IdProviderId);
if (profiles.Count == 1) // skip the profile select and go with the first one
{
string autoProfileId = profiles.FirstOrDefault().Id;
if (!string.IsNullOrEmpty(autoProfileId))
{
// if profile could not be handled then return to form
if (!await HandleProfileSelect(autoProfileId))
{
LoadPageSelectInstitution(refresh: false);
}
break;
}
}
LoadPageSelectProfile();
break;
case FormId.SelectProfile:
string profileId = pageSelectProfile.ProfileId;
// if profile could not be handled then return to form
if (!await HandleProfileSelect(profileId))
{
LoadPageSelectProfile(refresh: false);
}
break;
case FormId.ProfileOverview:
if (pageProfileOverview.ShowTou)
{
LoadPageTermsOfUse();
break;
}
if (ConnectToEduroam.EnumerateCAInstallers(eapConfig)
.Any(installer => installer.IsInstalledByUs || !installer.IsInstalled))
{
LoadPageCertificateOverview();
break;
}
LoadPageLogin();
break;
case FormId.TermsOfUse:
historyFormId.Remove(currentFormId);
PreviousPage();
break;
case FormId.CertificateOverview:
LoadPageLogin();
break;
case FormId.Login:
if (pageLogin.IsConnected)
{
if (!App.Installer.IsRunningInInstallLocation)
{
Shutdown();
}
else
{
Hide();
LoadPageInstalledProfile();
historyFormId.Clear();
}
break;
}
pageLogin.ConnectClick();
break;
case FormId.Redirect:
break;
}
// removes current form from history if it gets added twice
if (historyFormId.LastOrDefault() == currentFormId)
{
historyFormId.RemoveAt(historyFormId.Count - 1);
}
UpdateBackButton();
}
