如何在 Windows Phone 8 的 a 面中检索保存的会话 (ExampePage.xaml.cs)
本文关键字：会话 保存 ExampePage cs xaml 检索 Windows Phone | 更新日期: 2023-09-27 18:37:22
我使用名为SessionService的类中的方法保存了会话
/// <summary>
/// The service session.
/// </summary>
public class SessionService : ISessionService
{
private readonly IApplicationSettingsService _applicationSettings;
private readonly IFacebookService _facebookService;
private readonly IMicrosoftService _microsoftService;
private readonly IGoogleService _googleService;
private readonly ILogManager _logManager;
/// <summary>
/// Initializes a new instance of the <see cref="SessionService" /> class.
/// </summary>
/// <param name="applicationSettings">The application settings.</param>
/// <param name="facebookService">The facebook service.</param>
/// <param name="microsoftService">The microsoft service.</param>
/// <param name="googleService">The google service.</param>
/// <param name="logManager">The log manager.</param>
public SessionService(IApplicationSettingsService applicationSettings,
IFacebookService facebookService,
IMicrosoftService microsoftService,
IGoogleService googleService, ILogManager logManager)
{
_applicationSettings = applicationSettings;
_facebookService = facebookService;
_microsoftService = microsoftService;
_googleService = googleService;
_logManager = logManager;
}
/// <summary>
/// Gets the session.
/// </summary>
/// <returns>The session object.</returns>
public Session GetSession()
{
var expiryValue = DateTime.MinValue;
string expiryTicks = LoadEncryptedSettingValue("session_expiredate");
if (!string.IsNullOrWhiteSpace(expiryTicks))
{
long expiryTicksValue;
if (long.TryParse(expiryTicks, out expiryTicksValue))
{
expiryValue = new DateTime(expiryTicksValue);
}
}
var session = new Session
{
AccessToken = LoadEncryptedSettingValue("session_token"),
Id = LoadEncryptedSettingValue("session_id"),
ExpireDate = expiryValue,
Provider = LoadEncryptedSettingValue("session_provider")
};
_applicationSettings.Set(Constants.LoginToken, true);
_applicationSettings.Save();
return session;
}
/// <summary>
/// The save session.
/// </summary>
/// <param name="session">
/// The session.
/// </param>
private void Save(Session session)
{
SaveEncryptedSettingValue("session_token", session.AccessToken);
SaveEncryptedSettingValue("session_id", session.Id);
SaveEncryptedSettingValue("session_expiredate", session.ExpireDate.Ticks.ToString(CultureInfo.InvariantCulture));
SaveEncryptedSettingValue("session_provider", session.Provider);
_applicationSettings.Set(Constants.LoginToken, true);
_applicationSettings.Save();
}
/// <summary>
/// The clean session.
/// </summary>
private void CleanSession()
{
_applicationSettings.Reset("session_token");
_applicationSettings.Reset("session_id");
_applicationSettings.Reset("session_expiredate");
_applicationSettings.Reset("session_provider");
_applicationSettings.Reset(Constants.LoginToken);
_applicationSettings.Save();
}
/// <summary>
/// The login async.
/// </summary>
/// <param name="provider">
/// The provider.
/// </param>
/// <returns>
/// The <see cref="Task"/> object.
/// </returns>
public async Task<bool> LoginAsync(string provider)
{
Exception exception = null;
try
{
Session session = null;
switch (provider)
{
case Constants.FacebookProvider:
session = await _facebookService.LoginAsync();
break;
case Constants.MicrosoftProvider:
session = await _microsoftService.LoginAsync();
break;
case Constants.GoogleProvider:
session = await _googleService.LoginAsync();
break;
}
if (session != null)
{
Save(session);
}
return true;
}
catch (InvalidOperationException e)
{
throw;
}
catch (Exception ex)
{
exception = ex;
}
await _logManager.LogAsync(exception);
return false;
}
/// <summary>
/// The logout.
/// </summary>
public async void Logout()
{
Exception exception = null;
try
{
var session = GetSession();
switch (session.Provider)
{
case Constants.FacebookProvider:
_facebookService.Logout();
break;
case Constants.MicrosoftProvider:
_microsoftService.Logout();
break;
case Constants.GoogleProvider:
_googleService.Logout();
break;
}
CleanSession();
}
catch (Exception ex)
{
exception = ex;
}
if (exception != null)
{
await _logManager.LogAsync(exception);
}
}
/// <summary>
/// Loads an encrypted setting value for a given key.
/// </summary>
/// <param name="key">
/// The key to load.
/// </param>
/// <returns>
/// The value of the key.
/// </returns>
private string LoadEncryptedSettingValue(string key)
{
string value = null;
var protectedBytes = _applicationSettings.Get<byte[]>(key);
if (protectedBytes != null)
{
byte[] valueBytes = ProtectedData.Unprotect(protectedBytes, null);
value = Encoding.UTF8.GetString(valueBytes, 0, valueBytes.Length);
}
return value;
}
/// <summary>
/// Saves a setting value against a given key, encrypted.
/// </summary>
/// <param name="key">
/// The key to save against.
/// </param>
/// <param name="value">
/// The value to save against.
/// </param>
/// <exception cref="System.ArgumentOutOfRangeException">
/// The key or value provided is unexpected.
/// </exception>
private void SaveEncryptedSettingValue(string key, string value)
{
if (!string.IsNullOrWhiteSpace(key) && !string.IsNullOrWhiteSpace(value))
{
byte[] valueBytes = Encoding.UTF8.GetBytes(value);
// Encrypt the value by using the Protect() method.
byte[] protectedBytes = ProtectedData.Protect(valueBytes, null);
_applicationSettings.Set(key, protectedBytes);
_applicationSettings.Save();
}
}
}
我的会话类如下：
using System;
namespace AuthenticationSample.WP80.Services.Model
{
/// <summary>
/// The session.
/// </summary>
public class Session
{
/// <summary>
/// Gets or sets the access token.
/// </summary>
/// <value>
/// The access token.
/// </value>
public string AccessToken { get; set; }
/// <summary>
/// Gets or sets the id.
/// </summary>
/// <value>
/// The id value.
/// </value>
public string Id { get; set; }
/// <summary>
/// Gets or sets the expire date.
/// </summary>
/// <value>
/// The expire date.
/// </value>
public DateTime ExpireDate { get; set; }
/// <summary>
/// Gets or sets the provider.
/// </summary>
/// <value>
/// The provider.
/// </value>
public string Provider { get; set; }
}
}
我需要在以下页面中获取会话详细信息 AllEvents.xaml.cs ：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Navigation;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;
using AuthenticationSample.WP80.ViewModel;
using AuthenticationSample.WP80.Services.Model;
using AuthenticationSample.WP80.Services;
using AuthenticationSample.WP80.Resources;
using System.Threading.Tasks;
namespace AuthenticationSample.WP80.Views
{
public partial class AllEvents : PhoneApplicationPage
{
public AllEvents()
{
InitializeComponent();
MainViewModels FakeData = new MainViewModels();
FakeData.LoadData();
DataContext = FakeData;
}
}
}
如何在上面的页面中获取会话详细信息，如访问令牌，提供者等？我在这里需要这个值，如果我已经登录了，我怎么能在这里获取值？G
我尝试在会话服务类中调用 GetSession（） 方法，但它失败了，所以我尝试从手机应用程序设置访问它并且它有效
IsolatedStorageSettings settings = IsolatedStorageSettings.ApplicationSettings;
byte[] encryptedData = (byte[])settings["session_token"];
byte[] valueBytes = ProtectedData.Unprotect(encryptedData, null);
var AccessToken = Encoding.UTF8.GetString(valueBytes, 0, valueBytes.Length);