I'm implementing uploading big files to OneDrive by using BITS protocol. Here is the documentation
I'm having the following issue. After a certain period of time of being logged in when I'm trying to create a session I'm receiving 401 error. Here's the complete response:
<NSHTTPURLResponse: 0x7d6ee0f0> { URL: https://cid-da1cedf5484811a9.users.storage.live.com/items/DA1CEDF5484811A9!373/IMG_0003.JPG } { status code: 401, headers {
"BITS-Packet-Type" = Ack;
"Content-Length" = 0;
Date = "Mon, 22 Dec 2014 09:50:22 GMT";
P3P = "CP=\"BUS CUR CONo FIN IVDo ONL OUR PHY SAMo TELo\"";
Server = "Microsoft-HTTPAPI/2.0";
"X-AsmVersion" = "UNKNOWN; 19.9.0.0";
"X-ClientErrorCode" = AccessDenied;
"X-MSNSERVER" = "SN3301____PAP101";
"X-QosStats" = "{\"ApiId\":0,\"ResultType\":2,\"SourcePropertyId\":0,\"TargetPropertyId\":42}";
"X-ThrowSite" = "4e1b.c093";
} }
And here's how my request looks:
{
Authorization = "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";
"BITS-Packet-Type" = "Create-Session";
"BITS-Supported-Protocols" = "{7df0354d-249b-430f-820d-3d2a9bef4931}";
"X-Http-Method-Override" = "BITS_POST";
}
I can post code used to open session if you need, I don't post it now because it's pretty large.
OK, the first thing that comes to my mind is that access token has got outdated and I need to renew it somehow. BUT! Just before I perform request to retrieve user Id using the same access token:
- (void)retrieveUserId
{
NSString *urlString = [NSString stringWithFormat:@"https://apis.live.net/v5.0/me?access_token=%@", commonAccessToken];
NSURL *url = [NSURL URLWithString:urlString];
NSURLSessionConfiguration *sessionConfiguration = [NSURLSessionConfiguration defaultSessionConfiguration];
NSURLSession *session = [NSURLSession sessionWithConfiguration:sessionConfiguration];
NSURLSessionDataTask *task = [session dataTaskWithURL:url
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error){
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
if (httpResponse.statusCode == 200)
{
NSLog(@"Response retrieving user id %@", httpResponse);
NSError *parsingError = nil;
NSDictionary *parsedDictionary = [NSJSONSerialization JSONObjectWithData:data
options:kNilOptions
error:&parsingError];
if (!parsingError)
{
commonUserId = parsedDictionary[@"id"];
[self createUploadRequest];
}
else
{
dispatch_async(dispatch_get_main_queue(), ^{
[self.delegate bitsClient:self didFailWithError:parsingError];
});
}
}
else
{
dispatch_async(dispatch_get_main_queue(), ^{
[self.delegate bitsClient:self didFailWithError:error];
});
}
}];
[task resume];
}
And it works. This access token is OK when I get the user Id. But you can see that here unlike when trying to open a session the access token is put as a part of url, not as one of header fields. I'm not sure if it matters or not. By now I can't explain such a behaviour. If I logout and login again then it's OK again, I don't receive the 401 error anymore, so probably I really should renew the token, but how can it be done? One more thing for you to know - when I get the access token from LiveConnectSession I check if this session is expired and it's not. Its expires property is later than [NSDate date].
Also one more thing for you to know - despite I'm not able to open session and my request is being rejected with 401 error if I try to upload files by using Live SDK's LiveOperation the files are uploaded without any error.
I want to resume: After a certain period (seems like it is 24 hours but I'm not sure) of being logged in as OneDrive user I become unable to upload files using BITS protocol because I receive 401 error. At the same time the session seems to be not expired and I can still upload files by using LiveOperation. Also I can easily get user id using the same access token which is used when opening an upload session. If I logout and login again then again everything works like charm and I'm able to create session and upload files.
Seems like this is all that I can tell you, but if you need any additional info please tell me. Any help is extremely appreciated.
