嘗試獲取Twitter的令牌

Question

這裏是我的代碼：

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://twitter.com/oauth/request_token?oauth_callback=http://musiclamhe.com&oauth_consumer_key=jxSd6mnfXZoijjB9LppvTZA&oauth_nonce=28dc0bec380eba99306b7ff256e7bc67&&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1389960513&oauth_version=1.0"] 
                 cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData 
                 timeoutInterval:100]; 

    [request setHTTPMethod: @"GET"]; 

    NSError *requestError; 
    NSURLResponse *urlResponse = nil; 


    NSData *response1 = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&requestError]; 
    NSLog(@"ooo %@",response1); 
     NSString *nss=[[NSString alloc]initWithData:response1 encoding:NSUTF8StringEncoding]; 
     NSLog(@"ooo %@",nss); 

它顯示了以下錯誤消息：

failed to validate oauth signature and token 

Answer 1

嘗試這樣的。更多信息here

NSString *S = resultOfStep1; 
    NSDictionary *step2Params = [[NSMutableDictionary alloc] init]; 
    [step2Params setValue:@"JP3PyvG67rXRsnayOJOcQ" 
        forKey:@"x_reverse_auth_target"]; 

    [step2Params setValue:S forKey:@"x_reverse_auth_parameters"]; 

    NSURL *url2 = 
     [NSURL URLWithString:@"https://api.twitter.com/oauth/access_token"]; 

    SLRequest *stepTwoRequest = 
     [SLRequest requestForServiceType:SLServiceTypeTwitter 
         requestMethod:SLRequestMethodPOST 
            URL:url2 
          parameters:step2Params]; 

    // You *MUST* keep the ACAccountStore alive for as long as you need an 
    // ACAccount instance. See WWDC 2011 Session 124 for more info. 
    self.accountStore = [[ACAccountStore alloc] init]; 

    // We only want to receive Twitter accounts 
    ACAccountType *twitterType = 
     [self.accountStore accountTypeWithAccountTypeIdentifier: 
     ACAccountTypeIdentifierTwitter]; 

    // Obtain the user's permission to access the store 
    [self.accountStore requestAccessToAccountsWithType:twitterType 
    withCompletionHandler:^(BOOL granted, NSError *error) { 
     if (!granted) { 
      // handle this scenario gracefully 
     } else { 
      // obtain all the local account instances 
      NSArray *accounts = 
      [self.accountStore accountsWithAccountType:twitterType]; 

      // for simplicity, we will choose the first account returned - in 
      // your app, you should ensure that the user chooses the correct 
      // Twitter account to use with your application. DO NOT FORGET THIS 
      // STEP. 
      [stepTwoRequest setAccount:[accounts objectAtIndex:0]]; 

      // execute the request 
      [stepTwoRequest performRequestWithHandler:^ 
       (NSData *responseData, 
       NSHTTPURLResponse *urlResponse, 
       NSError *error) { 
        NSString *responseStr = 
        [[NSString alloc] initWithData:responseData 
              encoding:NSUTF8StringEncoding]; 

        // see below for an example response 
        NSLog(@"The user's info for your server:\n%@", responseStr); 
      }]; 
     } 
    }];