在 WP7 中存储 LiveConnectSession [英] Store LiveConnectSession in WP7

问题描述

我想在我的 Windows Phone 7 应用上使用 Hotmail API.因此，我必须授予对我的移动应用程序的访问权限.我使用 Microsoft Live Connect API 来做到这一点，这真的很棒首先.我使用以下代码进行身份验证:

string[] requiredScope = { "wl.signin", "wl.calendars_update", "wl.offline_access" };LiveAuthClient auth = new LiveAuthClient(Configuration.ClientID);auth.LoginCompleted += new EventHandler(authInitializeCompletedHandler);auth.LoginAsync(requiredScope);

ClientID 是我从 MS 获得的用于注册我的应用程序的 ID.我的回调看起来(简单)是这样的:

private void authInitializeCompletedHandler(object sender, LoginCompletedEventArgs e){if (e.Status == LiveConnectSessionStatus.Connected){this._session = e.Session;//会话帽 AccessToken 和 RefreshTokenthis._isAuthorized = true;callDelegates();}}

如果该调用成功(并且当前成功，因此有效)，我将存储检索到的会话.此会话可用于 LiveConnectClient 构造函数以启用与 MS API 的通信，在我的应用程序中为 Hotmail API.

LiveConnectClient 客户端 = new LiveConnectClient(_session);

我的问题是我想以某种方式保存该会话，以便当应用程序被墓碑化并重新获得焦点时，我不希望用户再次请求许可 - 他已经给了我.我自己发现返回的会话包含 AccessToken、RefreshToken 和 Expires 属性(我知道那是什么，这不是问题).我如何在以后的通话中使用这些信息?Microsoft 的相关文档到此结束，我找不到任何有用的信息.

我发现的 2 个解决方法:

• 实时连接按钮:不应该是要走的路，因为我不想仅仅显示我的会话变量就显示实时按钮.
• RESTful API:这需要我完全重写我到目前为止所做的一切，因为一切都依赖于 LiveConnectClient(这使得通信变得非常容易).

但我真的不想使用这种变通方法.我相信/希望有更好的解决方案.

解决方案

貌似这个答案如下

<块引用>

1. 确保您的应用程序同时包含 wl.signin 和 wl.offline_access 作用域.

2. 如果您未使用 SDK 中提供的登录控件，则应始终在应用启动时调用 LiveAuthClient.InitializeAsync.如果 InitializeAsync 未返回，则仅调用 LiveAuthClient.LoginAsync一个有效的会话.

这些步骤将确保您收到刷新令牌，因此无需首次登录后提示登录或同意.

来自:http://social.msdn.microsoft.com/Forums/en-US/messengerconnect/thread/6df1f31d-a22c-469c-b9f4-5c79e0882701

I want to use the Hotmail API on my Windows Phone 7 App. Therefore, I have to grant access to my mobile app. I do that using the Microsoft Live Connect API, which really works great for the start. I use the following code for authentication:

string[] requiredScope = { "wl.signin", "wl.calendars_update", "wl.offline_access" };
LiveAuthClient auth = new LiveAuthClient(Configuration.ClientID);
auth.LoginCompleted += new EventHandler<LoginCompletedEventArgs>(authInitializeCompletedHandler);
auth.LoginAsync(requiredScope);

ClientID is the ID I got from MS for registering my app. My callback looks (in simple) like this:

private void authInitializeCompletedHandler(object sender, LoginCompletedEventArgs e)
{
    if (e.Status == LiveConnectSessionStatus.Connected)
    {
        this._session = e.Session; // Session hat AccessToken und RefreshToken
        this._isAuthorized = true;
        callDelegates();
    }
}

If that call succeeds (and it currently does, so that works), I store the retrieved Session. This session can be used in the LiveConnectClient constructor to enable the communication with the MS API's, in my app the Hotmail API.

LiveConnectClient client = new LiveConnectClient(_session);

My problem is that I want to save that session somehow, so that when the app is tombstoned and gets its focus back, I don't want the user to ask again for permission - he already gave me that. I have figured out by myself that the returned session contains a AccessToken, RefreshToken and Expires property (I know what that is, that's not the problem). How can I use that information in future calls? Microsoft's documentation about that ends here and I can't find any useful information.

2 workarounds I found:

• Live Connect Button: Should not be the way to go, because I don't want to show the Live Button just that I get my session variable back.
• RESTful API: This would require that I completely rewrite what I have done so far because everything relies on the LiveConnectClient (which makes communication pretty easy).

But I don't really want to use that workarounds. I believe/hope that there is a better solution.

解决方案

Looks like the answer to this is as follows

1. Make sure you applications include both wl.signin and wl.offline_access scopes.

2. If you're not using the signin control provided in the SDK, you should always call LiveAuthClient.InitializeAsync when the app starts. Only call LiveAuthClient.LoginAsync if InitializeAsync does not return a valid session.

These steps will ensure you receiving a refresh token so no need to prompt for login or consent after the first time.

From: http://social.msdn.microsoft.com/Forums/en-US/messengerconnect/thread/6df1f31d-a22c-469c-b9f4-5c79e0882701

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