CODEWITHSUNDEEP
iosobjective-c
john doe
john doe

Reputation: 9660

Not Accessible Image Returning a Response

I have a .gif image which is only accessible if I am on Wifi. On a certain domain like mydomain.mysite.com/myimage.gif the image is not accessible.

But on my production environment the image some how becomes accessible and returns the following response: 

<NSHTTPURLResponse: 0x156c5200> { URL: } { status code: 200, headers {
    "Accept-Ranges" = bytes;
    "Cache-Control" = "max-age=86400";
    "Content-Length" = 554;
    "Content-Type" = "image/gif";
    Date = "Wed, 26 Mar 2014 14:47:53 GMT";
    Etag = "\"030329e4e9c91:11c4\"";
    "Last-Modified" = "Tue, 09 Jun 2009 13:17:20 GMT";
    Server = "Microsoft-IIS/6.0";
    "X-Powered-By" = "ASP.NET";
} }

My Objective C code is as follows: 

NSHTTPURLResponse *response;
    NSError *error = nil;

    NSURL *url = [NSURL URLWithString:currentEnvironment];
    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    [NSURLConnection sendSynchronousRequest:request returningResponse:&response
                                      error:&error];



    if(response != nil) return YES;

    return NO;

SOLUTION:

I believe this is the solution: The cachePolicy is implemented.

NSURL *url = [NSURL URLWithString:currentEnvironment];
    NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:60.0];

    [NSURLConnection sendSynchronousRequest:request returningResponse:&response
                                      error:&error];

Upvotes: 0

Views: 46

Answers (1)

john doe
john doe

Reputation: 9660

The production server was sending the Cache-Control headers which was caching the response. The solution is to specify NSURLRequest to not cache which is implemented below: 

NSURL *url = [NSURL URLWithString:currentEnvironment];
    NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:60.0];

    [NSURLConnection sendSynchronousRequest:request returningResponse:&response
                                      error:&error];

Upvotes: 1

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