我可以使用谷歌驱动器sdk从谷歌登录sdk在iOS上的身份验证信息？ [英] Can I use google drive sdk with authentication info from google sign-in sdk on iOS?

问题描述

我们已经有一个登录模块使用Google Sign-In sdk。登录成功后，Google登录会提供 GIDAuthentication 对象。

现在我想通过Google Drive sdk访问用户的谷歌驱动器，它需要一个GTMOAuth2Authentication来提供身份验证信息。那么我可以使用 GIDAuthentication 为drive sdk构造一个GTMOAuth2Authentication吗？

手动分配 accessToken 值似乎不起作用（已添加驱动器范围）。

解决方案

是的，您可以！

使用以下步骤： / p>

1. 按照以下步骤添加Google SignIn： https://developers.google.com/identity/sign-in/ios/start-integrating 。请确保您为项目启用了Google Drive API。

当初始化登录对象时，请不要忘记添加Google Drive API范围：

  func application（application：UIApplication，didFinishLaunchingWithOptions launchOptions：[NSObject：AnyObject]？） - > Bool {
 //初始化登录
 var configureError：NSError？ 
 GGLContext.sharedInstance（）。configureWithError（& configureError）
 assert（configureError == nil，配置Google服务时出错：\（configureError））
 
 GIDSignIn。 sharedInstance（）。delegate = self 
 
 //在这里使用你希望的任何授权范围（例如，kGTLAuthScopeDriveReadonly，
 // kGTLAuthScopeDriveMetadata等）
 //你可以明显附加更多范围以允许访问更多服务，
 // Google Drive除外。 
 GIDSignIn.sharedInstance（）。scopes.append（kGTLAuthScopeDrive）
 
 return true 
} 
  




2. 在您的 AppDelegate （或其他可访问的地方）中，添加：
   
   

     var myAuth：GTMFetcherAuthorizationProtocol？ =无
     




3. 在 signIn 委托函数（假设它也在 AppDelegate 中设置），请添加以下代码：
   
   

     func signIn（signIn：GIDSignIn !, didSignInForUser user：GIDGoogleUser !, withError error：NSError！）{
    if（error == nil）{
    //成功登录到Google服务！ 
    //保存来自user.authentication的相关详细信息，以便在需要时刷新令牌。 
    
    //为您的Google云端硬盘服务设置GTMOAuth2Authentication授权者
    myAuth = user.authentication.fetcherAuthorizer（）
   }其他{
    //登录Google服务时出错
    
    
    $ / code $ / pre $ 
   最后，无论您设置GoogleServiceDrive，也可以设置其授权者，只需设置： 
    
    
     let service = GTLServiceDrive（）
    service.authorizer =（UIApplication .sharedApplication（）。delegate as！AppDelegate）.myAuth 
     
    




4. 现在您可以使用示例代码由Google

     if let authorizer = service.authorizer，canAuth = authorizer.canAuthorize where canAuth {
    // service被授权并且可以用于查询
   } else {
    //服务未被授权
   } 
     




We already have a login module uses Google Sign-In sdk. Google Sign-In gives a GIDAuthentication object after login succeed.

Now I want to access user's google drive with google drive sdk which needs a GTMOAuth2Authentication to provide authentication info. So can I use the GIDAuthentication to construct a GTMOAuth2Authentication for drive sdk?

Manually assign the accessToken value seems not working(drive scope added).

解决方案

Yes you can!

Use the following steps:

1. Follow all the steps to add Google SignIn as described in: https://developers.google.com/identity/sign-in/ios/start-integrating. Make sure you enable the Google Drive API for your project.

2. When initialising the sign-in object, don't forget to add the Google Drive API scope:

   func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
       // Initialize sign-in
       var configureError: NSError?
       GGLContext.sharedInstance().configureWithError(&configureError)
       assert(configureError == nil, "Error configuring Google services: \(configureError)")
   
       GIDSignIn.sharedInstance().delegate = self
   
       // Use here whatever auth scope you wish (e.g., kGTLAuthScopeDriveReadonly, 
       // kGTLAuthScopeDriveMetadata, etc..)
       // You can obviously append more scopes to allow access to more services,
       // other than Google Drive.
       GIDSignIn.sharedInstance().scopes.append(kGTLAuthScopeDrive)
   
       return true
   }
   

3. In your AppDelegate (or some other accessible place), add:

   var myAuth: GTMFetcherAuthorizationProtocol? = nil
   

4. In you signIn delegate function (assuming here it is also set in AppDelegate), add the following code:

   func signIn(signIn: GIDSignIn!, didSignInForUser user: GIDGoogleUser!, withError error: NSError!) {
       if (error == nil) {
           // Logged into google services successfully! 
           // Save relevant details from user.authentication to refresh the token when needed.      
   
           // Set GTMOAuth2Authentication authoriser for your Google Drive service
           myAuth = user.authentication.fetcherAuthorizer()
       } else {
           // Error signing into Google services
       }
   }
   

5. Last, wherever you set your GoogleServiceDrive, you can also set its authoriser, simply by setting:

   let service = GTLServiceDrive()
   service.authorizer = (UIApplication.sharedApplication().delegate as! AppDelegate).myAuth
   

6. Now you can use the example code by Google

   if let authorizer = service.authorizer, canAuth = authorizer.canAuthorize where canAuth {
       // service is authorised and can be used for queries
   } else {
       // service is not authorised 
   }
   

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