使用xcode for ios在linkedin中获取accessstoken的oauth

Question

我在服务器中收到错误，同时请求链接在：

中的accessstoken

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oauth_problem = signature_invalid＆安培; oauth_problem_advice = com.linkedin.security.auth.pub.LoginDeniedInvalidAuthTokenException％20while％20obtaining％20request％20token％20for％20％3APOST％26https％253A％252F％252Fapi.linkedin.com％252Fuas％252Foauth ％252FaccessToken％26oauth_consumer_key％253Dma6wmdg1a0lb％2526oauth_nonce％253DVltw％2526oauth_signature_method％253DHMAC-SHA1％2526oauth_timestamp％253D1389012417％2526oauth_token％253D75 - f8855da6-48eb-4df3-b0ea-865b5176ee4a％2526oauth_verifier％253D90683％2526oauth_version％253D1.0％0AOAU％3Ama6wmdg1a0lb％ 7C75 - f8855da6-48eb-4df3-b0ea-865b5176ee4a％7C％2A01％7C％2A01％3A1389012417％3Ac1EHNqTOB7N％2B5BLY7NF2fWG3s4U％3D

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我已经按照https://developer.linkedin.com/oauth-test-console

中指定的格式设置了reqest

我将requset设置为：

  

NSMutableString * parameterString = [[NSMutableString   ALLOC] initWithFormat：@ “”];

[parameterString appendFormat:@"oauth_callback=%@", [oauthCallback urlencode]];
[parameterString appendFormat:@"&oauth_consumer_key=%@", [oauthConsumerKey urlencode]];
[parameterString appendFormat:@"&oauth_nonce=%@", [oauthNonce urlencode]];
[parameterString appendFormat:@"&oauth_signature_method=%@", [oauthSignatureMethod urlencode]];
[parameterString appendFormat:@"oauth_token=\"%@\"", oauth_token];
[parameterString appendFormat:@"&oauth_timestamp=%@", [oauth_timestamp urlencode]];
[parameterString appendFormat:@"&oauth_version=%@", [oauthVersion urlencode]];

NSString *signatureBaseString = [NSString stringWithFormat:@"%@&%@&%@", httpMethod, [baseURL urlencode], [parameterString urlencode]];

NSString *signingKey = [NSString stringWithFormat:@"%@&", [oauthConsumerSecret urlencode]];

NSString *oauthSignature = [self hmacsha1:signatureBaseString secret:signingKey];

NSMutableString *urlString = [[NSMutableString alloc]initWithFormat:@""];

[urlString appendFormat:@"%@", baseURL];

NSMutableString *authHeader = [[NSMutableString alloc]initWithFormat:@""];

[authHeader appendFormat:@"OAuth "];

[authHeader appendFormat:@"oauth_nonce=\"%@\",", [oauthNonce urlencode]];
[authHeader appendFormat:@"oauth_signature_method=\"%@\",", [oauthSignatureMethod urlencode]];
[authHeader appendFormat:@"oauth_timestamp=\"%@\",", [oauth_timestamp urlencode]];
[authHeader appendFormat:@"oauth_consumer_key=\"%@\",", [oauthConsumerKey urlencode]];
[authHeader appendFormat:@"oauth_token=\"%@\",", [oauth_token urlencode]];
[authHeader appendFormat:@"oauth_verifier=\"%@\",", [oauth_verifier urlencode]];
[authHeader appendFormat:@"oauth_signature=\"%@\",", [oauthSignature urlencode]];
[authHeader appendFormat:@"oauth_version=\"%@\"", [oauthVersion urlencode]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc]initWithURL:[NSURL URLWithString:urlString]] ;
[request setHTTPMethod:httpMethod];
[request setValue:authHeader forHTTPHeaderField:@"Authorization"];

请帮忙...... 谢谢你提前......：）