OAuthConsumer和Twitpic

Question

我正尝试使用OAuthConsumer将图像发布到TwitPic。我一直收到401“无法验证你（标头被Twitter拒绝）”。错误。

我还利用Twitter + OAuth库来处理登录并发布常规推文，然后保存使用TwitPic的令牌和令牌密钥。

这是我使用的结构要求的代码：

NSURL *twitpicUrl = [NSURL URLWithString:@"http://api.twitpic.com/2/upload.json"]; 
NSString* realm = @"http://api.twitter.com/"; 
OAToken* oaToken = [[OAToken alloc] initWithKey:savedToken secret:savedTokenSecret]; 
OAConsumer* oaConsumer = [[OAConsumer alloc] initWithKey:kOAuthConsumerKey secret:kOAuthConsumerSecret]; 

OAMutableURLRequest *request = [[[OAMutableURLRequest alloc] initWithURL:twitpicUrl consumer:oaConsumer 
            token:oaToken realm:realm signatureProvider:nil] autorelease]; 
[request prepare]; 
[request setHTTPMethod:@"POST"]; 
[request setValue:@"https://api.twitter.com/1/account/verify_credentials.json" forHTTPHeaderField:@"X-Auth-Service-Provider"]; 

NSString* authorizeHeader = [request valueForHTTPHeaderField:@"Authorization"]; 
[request setValue:authorizeHeader forHTTPHeaderField:@"X-Verify-Credentials-Authorization"]; 

如果我打印出我的头，这是我所得到的（不包括未使用的授权头）：

"X-Auth-Service-Provider" = "https://api.twitter.com/1/account/verify_credentials.json"; 
    "X-Verify-Credentials-Authorization" = "OAuth realm=\"http%3A%2F%2Fapi.twitter.com%2F\", oauth_consumer_key=\"JOvwW7mtZUjRXZRInkQI7w\", oauth_token=\"293217559-pD0HL0oE6TZSkU35mPnc7kia325oPDgMfQMTVArK\", oauth_signature_method=\"HMAC-SHA1\", oauth_signature=\"ctmCK35JFwx8qs8lQj0AYB6sUr4%3D\", oauth_timestamp=\"1304580843\", oauth_nonce=\"7EBE3EB0-641A-40EA-A57C-8D071B5E647F\", oauth_version=\"1.0\""; 

我收到的错误是：

Error: The operation couldn’t be completed. (NSURLErrorDomain error -1012.) 
{"errors":[{"code":401,"message":"Could not authenticate you (header rejected by twitter)."}]} 

我在这里排除了一些细节，特别是appendi主要是因为我认为这与错误无关。如果您认为别的，请告诉我，我会更新问题。

任何人都可以帮忙吗？

更新：这里是我现在使用的成功

在头代码：

#define kVerifyCredentialsUrl @"https://api.twitter.com/1/account/verify_credentials.json" 
#define kTwitPicUrl @"http://api.twitpic.com/2/upload.json" 

实现：

//prepare the verify credentials header 
NSURL* serviceUrl = [NSURL URLWithString:kVerifyCredentialsUrl]; 
NSString* realm = @"http://api.twitter.com/"; 
OAToken* token = [[OAToken alloc] initWithKey:tokenKey secret:tokenSecret]; 
OAConsumer* consumer = [[OAConsumer alloc] initWithKey:kOAuthConsumerKey secret:kOAuthConsumerSecret]; 
OAMutableURLRequest *request = [[OAMutableURLRequest alloc] initWithURL:serviceUrl consumer:consumer token:token realm:realm signatureProvider:nil]; 
[request setHTTPMethod:@"GET"]; 
[request prepare]; 
NSDictionary* headerDictionary = [request allHTTPHeaderFields]; 
NSString* oAuthHeader = [NSString stringWithString:[headerDictionary valueForKey:@"Authorization"]]; 
[request release]; 
request = nil; 

//prepare the full request 
serviceUrl = [NSURL URLWithString:kTwitPicUrl]; 
request = [[OAMutableURLRequest alloc] initWithURL:serviceUrl consumer:consumer token:token realm:realm signatureProvider:nil]; 
[request setHTTPMethod:@"POST"]; 
[request setValue:kVerifyCredentialsUrl forHTTPHeaderField:@"X-Auth-Service-Provider"]; 
[request setValue:oAuthHeader forHTTPHeaderField:@"X-Verify-Credentials-Authorization"]; 

//add the content and start the request 
UIImage* imageToUpload = [UIImage imageNamed:@"test.png"]; 
NSData *data = UIImagePNGRepresentation(imageToUpload); 
ASIFormDataRequest *asiRequest = [[[ASIFormDataRequest alloc] initWithURL:[NSURL URLWithString:kTwitPicUrl]] autorelease]; 
[asiRequest addRequestHeader:@"X-Auth-Service-Provider" value:kVerifyCredentialsUrl]; 
[asiRequest addRequestHeader:@"X-Verify-Credentials-Authorization" value:oAuthHeader]; 
[asiRequest setPostValue:@"Message here" forKey:@"message"]; 
[asiRequest setPostValue:kTwitPicAPIKey forKey:@"key"]; 
[asiRequest setData:data forKey:@"media"]; 
[asiRequest setDidFinishSelector:@selector(requestDone:)]; 
[asiRequest setDidFailSelector:@selector(requestWentWrong:)]; 
[asiRequest setDelegate:self]; 
[asiRequest startAsynchronous]; 

Answer 1

试试这个：

NSURL *serviceURL = [NSURL URLWithString:@"https://api.twitter.com/1/account/verify_credentials.json"]; 
OAMutableURLRequest *oRequest = [[OAMutableURLRequest alloc] initWithURL:serviceURL 
                   consumer:consumer_ 
                    token:accessToken_ 
                    realm:@"http://api.twitter.com/" 
                 signatureProvider:nil]; 
[oRequest setHTTPMethod:@"GET"]; 
[oRequest prepare]; 
NSDictionary * headerDict = [oRequest allHTTPHeaderFields]; 
NSString * oauthHeader = [NSString stringWithString:[headerDict valueForKey:@"Authorization"]]; 
[oRequest release]; 

// Prepare the POST request 
oRequest = nil; 
serviceURL = nil; 
serviceURL = [NSURL URLWithString:@"http://api.twitpic.com/2/upload.json"]; 
oRequest = [[OAMutableURLRequest alloc] initWithURL:serviceURL 
               consumer:consumer_ 
                token:accessToken_ 
                realm:@"http://api.twitter.com/" 
             signatureProvider:nil]; 
[oRequest setHTTPMethod:@"POST"]; 
[oRequest setValue:@"https://api.twitter.com/1/account/verify_credentials.json" forHTTPHeaderField:@"X-Auth-Service-Provider"]; 
[oRequest setValue:oauthHeader forHTTPHeaderField:@"X-Verify-Credentials-Authorization"]; 

您还应该在方法的结束OAMutableURLRequest.m这种变化 - （空）准备：

NSString *oauthHeader = [NSString stringWithFormat:@"OAuth realm=\"%@\", oauth_consumer_key=\"%@\", %@oauth_signature_method=\"%@\", oauth_signature=\"%@\", oauth_timestamp=\"%@\", oauth_nonce=\"%@\", oauth_version=\"1.0\"%@", 
         [realm URLEncodedString], 
         [consumer.key URLEncodedString], 
         oauthToken, 
         [[signatureProvider name] URLEncodedString], 
         [signature URLEncodedString], 
         timestamp, 
         nonce, 
         extraParameters]; 
if(![self valueForHTTPHeaderField:@"X-Verify-Credentials-Authorization"]) 
    [self setValue:oauthHeader forHTTPHeaderField:@"Authorization"]; 

Answer 2

这也可能是与Twitter当前存在问题。 我的代码使用像你这样的OAMutableURLRequest，一直工作良好的年龄，今天我不断收到401错误代码。搜索Twitter，你会发现最近有更多人遇到这个问题。

这是你可以在API状态页面现在读什么：

我们目前正在经历升高 错误率。加载twitter.com和Twitter 客户端时可能会出现间歇性 问题。我们意识到问题 并采取行动。感谢您的 耐心等待！

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