No http headers

Shades of Chaos · 08-02-2011, 04:07 PM

Hey guys,

I am trying to find the http headers but I don't think my method is working.
I am using

Code:

- (BOOL)webView:(UIWebView *)webView2 shouldStartLoadWithRequest:(NSURLRequest *)request
 navigationType:(UIWebViewNavigationType)navigationType {
NSMutableURLRequest *req = (NSMutableURLRequest *)request;
NSLog(@"http headers = %@", [req allHTTPHeaderFields]);
}

But the NSLog is printing out

Code:

http headers = {

Does anyone know why?

Thanks
Clinton

MattW · 08-02-2011, 05:27 PM

Quote:

Originally Posted by Shades of Chaos

Hey guys,

I am trying to find the http headers but I don't think my method is working.
I am using

Code:

- (BOOL)webView:(UIWebView *)webView2 shouldStartLoadWithRequest:(NSURLRequest *)request
 navigationType:(UIWebViewNavigationType)navigationType {
NSMutableURLRequest *req = (NSMutableURLRequest *)request;
NSLog(@"http headers = %@", [req allHTTPHeaderFields]);
}

But the NSLog is printing out

Code:

http headers = {

Does anyone know why?

Thanks
Clinton

Have you checked that req isn't nil?

Just out of curiosity... why are you casting to an NSMutableURLRequest?

Shades of Chaos · 08-02-2011, 05:37 PM

Ah ok thank you. I am also trying to get the user-agent by using

Code:

NSLog(@"user agent = %@", [request valueForHTTPHeaderField: @"User-Agent"]);

And that is returning (null). I checked the docs and that method returns an NSString. Is user agent spelled in a different way or something?

Shades of Chaos · 08-02-2011, 05:47 PM

Also I was able to use this code

Code:

NSLog(@"%@", [httpResponse allHeaderFields]);

Where httpResponse was a NSHTTPURLResponse. This worked and printed out all the header fields. But now I am trying to use a NSUrlRequest

MattW · 08-02-2011, 06:04 PM

Quote:

Originally Posted by Shades of Chaos

Also I was able to use this code

Code:

NSLog(@"%@", [httpResponse allHeaderFields]);

Where httpResponse was a NSHTTPURLResponse. This worked and printed out all the header fields. But now I am trying to use a NSUrlRequest

Humble apologies... my brain was in C, rather than Objective-C, mode!!

Have you double-checked that req isn't coming back as nil?

Shades of Chaos · 08-02-2011, 06:15 PM

No they are not. I turned both req and request into a string like

Code:

NSString *requestString = [[request URL] absoluteString];
NSString *requestString2 = [[req URL] absoluteString];

And neither of them print out nil

MattW · 08-02-2011, 06:38 PM

Quote:

Originally Posted by Shades of Chaos

No they are not. I turned both req and request into a string like

Code:

NSString *requestString = [[request URL] absoluteString];
NSString *requestString2 = [[req URL] absoluteString];

And neither of them print out nil

If I were you, I'd do a little NSLog walk of your dictionary, and see what's in it. Sounds like it might be empty?

Shades of Chaos · 08-02-2011, 06:48 PM

I also think it is empty but I dont know why or how to fix it. When I use

Code:

NSLog(@"http headers = %@", [request allHTTPHeaderFields]);
	NSLog(@"http headers = %@", [req allHTTPHeaderFields]);

They both come out as

Code:

http headers = {