iPhone NSURL get last redirected url

Question

i wonder how can you update your NSURL to the last url that a your url will redirect to
using NSURL or NSRequest

appreciate your help. thanks.

score 8 · Answer 1 · answered Oct 03 '14 at 14:11

8

zanque's solution works, but in order to avoid downloading "useless" data, I'd change the http method to HEAD :

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:orinigalURL cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:15.0];
[request setHTTPMethod:@"HEAD"];
NSURLResponse *response = nil;
[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:nil];
NSURL *finalURL = response.URL;

answered Oct 03 '14 at 14:11

nstefan

187
2
8

3

This might be better suited as a comment instead of an answer. Or perhaps an edit. – EWit Oct 03 '14 at 14:16
1

@EWit, the user has 1 Rep. They can't post a comment. Additionally, this provides an alternative answer to the question. – Andy Oct 03 '14 at 14:50
@Andy I just made a comment meant to provide some, future, guidance. But because it extends on an existing answer it might have been better put it as an edit on the answer so people reading it are made aware of both the issue and the solution. Also there is a reason I chose to use "might be" instead of "should be". – EWit Oct 04 '14 at 11:58

score 6 · Answer 2 · answered Dec 23 '09 at 14:24

i did it,

here is how

NSURL *originalUrl=[NSURL URLWithString:@"http://YourURL.com"];
NSData *data=nil;  
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:originalUrl cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:10];
NSURLResponse *response;
NSError *error;
data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSURL *LastURL=[response URL];
[request release];
[error release];

score 1 · Answer 3 · answered Dec 23 '09 at 11:42

1

You'll only be able to find this out after trying to connect using NSURLConnection. If you add a method to your NSURLConnection delegate, -connection:willSendRequest:redirectResponse:, you'll be notified before redirects happen. Just grab the URL from the passed request, and that's your answer.

answered Dec 23 '09 at 11:42

Ben Gottlieb

85,404
22
176
172

I don't believe so. Apple discourages synchronous operations. – Ben Gottlieb Dec 23 '09 at 13:18

score 1 · Answer 4 · answered Jan 09 '20 at 09:12

You cause following swift code to get the final redirected url:

            let request = NSMutableURLRequest(url: url, cachePolicy: .reloadIgnoringCacheData, timeoutInterval: 15.0)
        request.httpMethod = "HEAD"
        var response: URLResponse? = nil
        do {
            try NSURLConnection.sendSynchronousRequest(request as URLRequest, returning: &response)
        } catch { //Handle exception //if any
        }
        let finalURL = response?.url

iPhone NSURL get last redirected url

4 Answers4

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