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using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Windows.Security.Credentials;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Microsoft.Practices.Unity;
using Prism.Windows.AppModel;
using Prism.Windows.Navigation;
namespace NextcloudApp.Services
{
public static class ClientService
{
private static NextcloudClient.NextcloudClient _client;
public static async Task<NextcloudClient.NextcloudClient> GetClient()
{
if (_client != null)
{
return _client;
}
if (!string.IsNullOrEmpty(SettingsService.Instance.LocalSettings.ServerAddress) &&
!string.IsNullOrEmpty(SettingsService.Instance.LocalSettings.Username))
{
var vault = new PasswordVault();
IReadOnlyList<PasswordCredential> credentialList = null;
try
{
credentialList = vault.FindAllByResource(SettingsService.Instance.LocalSettings.ServerAddress);
}
catch
{
// ignored
}
var credential = credentialList?.FirstOrDefault(item => item.UserName.Equals(SettingsService.Instance.LocalSettings.Username));
if (credential == null)
{
return null;
}
credential.RetrievePassword();
try
{
var response = await NextcloudClient.NextcloudClient.GetServerStatus(credential.Resource, SettingsService.Instance.LocalSettings.IgnoreServerCertificateErrors);
if (response == null)
{
await ShowServerAddressNotFoundMessage(credential.Resource);
return null;
}
}
catch
{
await ShowServerAddressNotFoundMessage(credential.Resource);
return null;
}
_client = new NextcloudClient.NextcloudClient(
credential.Resource,
credential.UserName,
credential.Password
) {
IgnoreServerCertificateErrors =
SettingsService.Instance.LocalSettings.IgnoreServerCertificateErrors
};
}
SettingsService.Instance.LocalSettings.PropertyChanged += async (sender, args) =>
{
if (_client != null && args.PropertyName == "IgnoreServerCertificateErrors")
{
_client.IgnoreServerCertificateErrors =
SettingsService.Instance.LocalSettings.IgnoreServerCertificateErrors;
}
if (
string.IsNullOrEmpty(SettingsService.Instance.LocalSettings.ServerAddress) ||
string.IsNullOrEmpty(SettingsService.Instance.LocalSettings.Username)
)
{
_client = null;
return;
}
var vault = new PasswordVault();
IReadOnlyList<PasswordCredential> credentialList = null;
try
{
credentialList = vault.FindAllByResource(SettingsService.Instance.LocalSettings.ServerAddress);
}
catch
{
// ignored
}
var credential = credentialList?.FirstOrDefault(item => item.UserName.Equals(SettingsService.Instance.LocalSettings.Username));
if (credential == null)
{
_client = null;
return;
}
credential.RetrievePassword();
try
{
var response = await NextcloudClient.NextcloudClient.GetServerStatus(credential.Resource, SettingsService.Instance.LocalSettings.IgnoreServerCertificateErrors);
if (response == null)
{
_client = null;
await ShowServerAddressNotFoundMessage(credential.Resource);
return;
}
}
catch
{
_client = null;
await ShowServerAddressNotFoundMessage(credential.Resource);
return;
}
_client = new NextcloudClient.NextcloudClient(
credential.Resource,
credential.UserName,
credential.Password
) {
IgnoreServerCertificateErrors =
SettingsService.Instance.LocalSettings.IgnoreServerCertificateErrors
};
};
return _client;
}
private static async Task ShowServerAddressNotFoundMessage(string serverAddress)
{
var app = Application.Current as App;
if (app == null)
{
return;
}
var navigationService = app.Container.Resolve<INavigationService>();
var resourceLoader = app.Container.Resolve<IResourceLoader>();
var dialogService = app.Container.Resolve<DialogService>();
var dialog = new ContentDialog
{
Title = resourceLoader.GetString("AnErrorHasOccurred"),
Content = new TextBlock
{
Text = string.Format(resourceLoader.GetString("ServerWithGivenAddressIsNotReachable"), serverAddress),
TextWrapping = TextWrapping.WrapWholeWords,
Margin = new Thickness(0, 20, 0, 0)
},
PrimaryButtonText = resourceLoader.GetString("OK")
};
await dialogService.ShowAsync(dialog);
SettingsService.Instance.Reset();
navigationService.Navigate(PageTokens.Login.ToString(), null);
}
public static void Reset()
{
_client = null;
}
}
}
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