Question

我很难搞清楚我在这里做错了什么。任何帮助将非常感激。情况就是这样。我有一个图像，我试图自动分享到Facebook。因此，根据Facebook的最佳实践，我首先获得了基本权限，然后我获得了publish_actions权限。当我试图发布图片时，没有发布错误，但NSURLResponse显示了这一点。

"Www-Authenticate" = "OAuth \"Facebook Platform\" \"insufficient_scope\" \"(#200) Permissions error\"";

以下是我用来分享给Facebook的代码。

- (void) loginViaFacebookWithPublishCredentialsWithResponse:(BGResponseBlock)block
{
    if(!self.accountStore)
    {
        self.accountStore = [[ACAccountStore alloc] init];
    }
    ACAccountType *facebookTypeAccount = [self.accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];

    [self.accountStore requestAccessToAccountsWithType:facebookTypeAccount
                                               options:@{ACFacebookAppIdKey: FacebookAppIDKey,
                                                         ACFacebookPermissionsKey: @[@"publish_actions"],
                                                         ACFacebookAudienceKey: ACFacebookAudienceEveryone}
                                            completion:^(BOOL granted, NSError *error)
     {
         if(granted)
         {
             NSArray *accounts = [self.accountStore accountsWithAccountType:facebookTypeAccount];

             self.facebookAccount = accounts.lastObject;
             ACAccountCredential *fbCredential = [self.facebookAccount credential];
             if([fbCredential oauthToken])
             {
                 if(block)
                 {
                     block([fbCredential oauthToken],nil);
                 }
             }
         }
         else
         {
             if([error code] == 6)
             {
                 if(block)
                 {
                     block(nil,error);
                 }
             }
             else
             {
                 NSLog(@"The original error while trying to log into facebook is %@", error);
                 NSError *accessDeniedError = [NSError errorWithDomain:@"Access Denied" code:999 userInfo:nil];
                 if(block)
                 {
                     block(nil,accessDeniedError);
                 }
             }
         }
     }];
}

- (void) autoShareViaFacebook:(UIImage *)image withCaption:(NSString *)caption andResponseBlock:(void(^)(BOOL sharedSuccessfullyViaFB, NSError *error))block
{
    NSBlockOperation *uploadOperation = [[NSBlockOperation alloc] init];
    [uploadOperation addExecutionBlock:^
     {
         [self loginViaFacebookWithPublishCredentialsWithResponse:^(id responseObject, NSError *error)
          {
              if(responseObject && !error)
              {
                  NSDictionary *parameters = @{@"message":caption};

                  SLRequest *request = [SLRequest requestForServiceType:SLServiceTypeFacebook requestMethod:SLRequestMethodPOST URL:[NSURL URLWithString:@"https://graph.facebook.com/me/photos"] parameters:parameters];
                  request.account = self.facebookAccount;

                  [request addMultipartData:UIImageJPEGRepresentation(image, 0.8) withName:@"source" type:@"multipart/form-data" filename:caption];
                  [request performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error)
                   {
                       //NSError *jsonParsingError = nil;

                       if (error)
                       {
                           // Post error data to NSLog
                           NSLog(@"SLRequest Error: %@", error);
                           if(block)
                           {
                               block(NO, error);
                           }
                       }
                       else
                       {
                           NSLog(@"Facebook autoshare successful!");
                           if(block)
                           {
                               block(YES,nil);
                           }
                       }
                   }];
              }
              else
              {
                  dispatch_async(dispatch_get_main_queue(), ^{
                      if(block)
                      {
                          block(NO,error);
                      }
                  });
              }
          }];
     }];

    [[BGSocialInstance sharedInstance].operationQueue addOperation:uploadOperation];
}

当我打印出NSURLResponse时，这就是我得到的。

po urlResponse
<NSHTTPURLResponse: 0x15e26430> { URL: https://graph.facebook.com/me/photos } { status code: 403, headers {
    "Access-Control-Allow-Origin" = "*";
    "Cache-Control" = "no-store";
    Connection = "keep-alive";
    "Content-Length" = 83;
    "Content-Type" = "application/json; charset=UTF-8";
    Date = "Mon, 16 Jun 2014 17:52:11 GMT";
    Expires = "Sat, 01 Jan 2000 00:00:00 GMT";
    Pragma = "no-cache";
    "Www-Authenticate" = "OAuth \"Facebook Platform\" \"insufficient_scope\" \"(#200) Permissions error\"";
    "X-FB-Debug" = "fH7p9jHKmUDEWpa36iKKp0T8zrAu3gyx46oqdzB1fmgEJMEhYuYDgJ33R7lDXfVXG5PGzrQCDXYUxtgh73sFOA==";
    "X-FB-Rev" = 1292193;
} }

打印时的响应数据总是给出这个。

resposedata:{"error":{"message":"(#200) Permissions error","type":"OAuthException","code":200}}

Answer 1

看起来，由于Facebook转移到Graph 2.0，我们需要为我们在developer.facebook.com中创建的应用程序请求publish_actions权限。我们需要提交一个指向隐私政策的链接，填写大量元数据并提交构建版本，FB将审核它并提供对应用程序的访问权限，所有内容都应该与上面的代码一起使用。

使用SLRequest将图像发布到Facebook在Graph2.0之后无法正常工作

1 个答案: