9

3.1 Facebook SDK を使用し、設定で iOS 6 Facebook をセットアップし、アプリを承認しました。

これは問題なく実行されます。

[FBSession openActiveSessionWithReadPermissions:nil allowLoginUI:YES completionHandler:^(FBSession *fbSession, FBSessionState fbState, NSError *error) { ... }

ただし、「自分」の情報を取得しようとすると、エラーが発生します。

com.facebook.sdk:ParsedJSONResponseKey = {
    body =     {
        error =         {
            code = 190;
            "error_subcode" = 463;
            message = "Error validating access token: Session has expired at unix time 1348704000. The current unix time is 1348706984.";
            type = OAuthException;
        };
    };
    code = 400;
}

ログインしただけで有効なアクセス トークンを取得する必要はありません[error code]か? 再認証を呼び出す必要がありますか?

更新: 再認証は役に立ちません。奇妙なことに、私の activeSession の accessToken は常に同じに戻ってきます。これは、closeAndClearToken を呼び出したにもかかわらずです。

4

2 に答える 2

4

更新: この問題は、Facebook iOS SDK 3.1.1 で対処されています。

コードを github から同期したところ、accountStore renewCredentialsForAccount:completion:どこにも呼び出されていないことがわかりました。次のコードを変更したauthorizeUsingSystemAccountStoreところ、問題が解決したようです。

// we will attempt an iOS integrated facebook login
[accountStore requestAccessToAccountsWithType:accountType
                                      options:options
                                   completion:^(BOOL granted, NSError *error) {

                                       // this means the user has not signed-on to Facebook via the OS
                                       BOOL isUntosedDevice = (!granted && error.code == ACErrorAccountNotFound);

                                       dispatch_block_t postReauthorizeBlock = ^{
                                           NSString *oauthToken = nil;
                                           if (granted) {                                                                                                      
                                               NSArray *fbAccounts = [accountStore accountsWithAccountType:accountType];
                                               id account = [fbAccounts objectAtIndex:0];
                                               id credential = [account credential];                                                   
                                               oauthToken = [credential oauthToken];
                                           }

                                           // initial auth case
                                           if (!isReauthorize) {
                                               if (oauthToken) {
                                                   _isFacebookLoginToken = YES;
                                                   _isOSIntegratedFacebookLoginToken = YES;

                                                   // we received a token just now
                                                   self.refreshDate = [NSDate date];

                                                   // set token and date, state transition, and call the handler if there is one
                                                   [self transitionAndCallHandlerWithState:FBSessionStateOpen
                                                                                     error:nil
                                                                                     token:oauthToken
                                                    // BUG: we need a means for fetching the expiration date of the token
                                                                            expirationDate:[NSDate distantFuture]
                                                                               shouldCache:YES
                                                                                 loginType:FBSessionLoginTypeSystemAccount];
                                               } else if (isUntosedDevice) {
                                                   // even when OS integrated auth is possible we use native-app/safari
                                                   // login if the user has not signed on to Facebook via the OS
                                                   [self authorizeWithPermissions:permissions
                                                                  defaultAudience:defaultAudience
                                                                   integratedAuth:NO
                                                                        FBAppAuth:YES
                                                                       safariAuth:YES
                                                                         fallback:YES
                                                                    isReauthorize:NO];
                                               } else {
                                                   // create an error object with additional info regarding failed login
                                                   NSError *err = [FBSession errorLoginFailedWithReason:nil
                                                                                              errorCode:nil
                                                                                             innerError:error];

                                                   // state transition, and call the handler if there is one
                                                   [self transitionAndCallHandlerWithState:FBSessionStateClosedLoginFailed
                                                                                     error:err
                                                                                     token:nil
                                                                            expirationDate:nil
                                                                               shouldCache:NO
                                                                                 loginType:FBSessionLoginTypeNone];
                                               }
                                           } else { // reauth case
                                               if (oauthToken) {
                                                   // union the requested permissions with the already granted permissions
                                                   NSMutableSet *set = [NSMutableSet setWithArray:self.permissions];
                                                   [set addObjectsFromArray:permissions];

                                                   // complete the operation: success
                                                   [self completeReauthorizeWithAccessToken:oauthToken
                                                                             expirationDate:[NSDate distantFuture]
                                                                                permissions:[set allObjects]];
                                               } else {
                                                   // no token in this case implies that the user cancelled the permissions upgrade
                                                   NSError *error = [FBSession errorLoginFailedWithReason:FBErrorReauthorizeFailedReasonUserCancelled
                                                                                                errorCode:nil
                                                                                               innerError:nil];
                                                   // complete the operation: failed
                                                   [self callReauthorizeHandlerAndClearState:error];

                                                   // if we made it this far into the reauth case with an untosed device, then
                                                   // it is time to invalidate the session
                                                   if (isUntosedDevice) {
                                                       [self closeAndClearTokenInformation];
                                                   }
                                               }
                                           }
                                       };



                                       if (granted) {
                                           [accountStore renewCredentialsForAccount:[[accountStore accountsWithAccountType:accountType] lastObject] completion:^(ACAccountCredentialRenewResult renewResult, NSError *error) {
                                               dispatch_async(dispatch_get_main_queue(), postReauthorizeBlock);
                                           }];
                                       } else {
                                           // requestAccessToAccountsWithType:options:completion: completes on an
                                           // arbitrary thread; let's process this back on our main thread
                                           dispatch_async(dispatch_get_main_queue(), postReauthorizeBlock);
                                       }

                                   }];

}
于 2012-09-27T19:58:38.343 に答える
0

対処済みですが、デバイスを信頼できないため、確認のためにバックエンドから /me を呼び出しています。

そのため、バックエンドが認証エラーで戻ってきたときにFBSession'sを呼び出します。+ (void)renewSystemAuthorization

于 2012-10-25T21:10:45.127 に答える