在Facebook iOS SDK的openActiveSession之後過期的訪問令牌

Question

我正在使用設置和我的應用程序授權的iOS 6 Facebook設置3.1 Facebook SDK。但是現在

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

，當我試圖讓「我」的信息，我發現了一個錯誤：

這完美地執行

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; 
} 

如果我看[error code]它等於5。在登錄後不應該有一個有效的訪問令牌嗎？我需要重新授權嗎？

UPDATE：重新授權不起作用。奇怪的是我的activeSession的accessToken總是回來一樣。這儘管調用closeAndClearToken。

Answer 1

---

UPDATE： 此問題已在Facebook的iOS版SDK 3.1.1得到解決。

---

我同步的代碼關閉github上，發現他們並沒有打電話accountStore renewCredentialsForAccount:completion:任何地方。我在authorizeUsingSystemAccountStore中更改了下面的代碼，它似乎解決了這個問題。

// 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); 
             } 

            }]; 

} 

Answer 2

所以這個問題已經解決了，但是我從後臺調用/ me來驗證，因爲你不能相信這個設備。

所以我打電話給FBSession的+ (void)renewSystemAuthorization當後端回來帶有授權錯誤。