Re: NSURLRequest returning bizarre page

[Greg Parker]

On Jun 10, 2013, at 5:32 PM, Trygve Inda  wrote:
> http://www.celestrak.com/NORAD/elements/stations.txt

The JavaScript redirect you showed earlier appears to be that server's broken 
attempt to display a "page not found" error. Note the Content-Location header 
with "404" in it. 

Perhaps the file you want is temporarily absent from the server sometimes, when 
the data is updated or something.


% curl -i http://www.celestrak.com/NORAD/elements/this-is-a-fake-file-name.txt
HTTP/1.1 200 OK
Content-Length: 481
Content-Type: text/html
Content-Location: 
http://www.celestrak.com/redirect.htm?404;http://www.celestrak.com:80/NORAD/elements/this-is-a-fake-file-name.txt
Last-Modified: Fri, 10 Sep 2004 21:40:52 GMT
Accept-Ranges: bytes
ETag: "d4cf1fd87e97c41:257"
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
Date: Tue, 11 Jun 2013 19:01:40 GMT

http://www.w3.org/TR/html4/loose.dtd";>



Untitled Document

var loc = escape(document.location.href);
//var ref = escape(document.referrer);
var newLoc = "/redirect.asp?loc=" + loc;
window.location.href(newLoc);








-- 
Greg Parker gpar...@apple.com Runtime Wrangler



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Re: NSURLRequest returning bizarre page

[Manoah F. Adams]

Hello,
[this message updated; previous message failed to get posted to the  
list]



I noticed that the garbling is always "^M\n" -- indicating to me  
there is a newline/linebreak encoding issue.

(especially since the server is a Microsoft monster).

2 ideas in order of likelihood:

===  (1) ===
Try setting the NSURLRequest to request *only* "text/plain",
(Noticing how safari gets back "text/plain" mime type, but your cocoa  
app got back a (garbled) HTML.
The result you got looks like untested code in the server for  
wrapping plain text into html format.


I did some experimenting...

Try this to check :

//  for testing use a header echo service ...
	NSURL* tleAddress = [NSURL URLWithString:@"http://scooterlabs.com/ 
echo.xml"];


// Must use NSMutableURLRequest .. .see
		http://stackoverflow.com/questions/4809047/nsurlrequest-setting-the- 
http-header


	NSMutableURLRequest* tleRequest = [[[NSMutableURLRequest alloc]  
initWithURL:tleAddress]

autorelease];
	[tleRequest setValue:@"text/plain" forHTTPHeaderField:@"Accept"]; //  
no trailing colon (:)


NSURLResponse* tleResponse = nil;

NSError* tleError = nil;

NSData* tleData = [NSURLConnection sendSynchronousRequest:tleRequest
returningResponse:&tleResponse error:&tleError];

NSString* tleString = [[[NSString alloc] initWithData:tleData
encoding:NSUTF8StringEncoding] autorelease];

//  for testing...
	NSLog(tleString); // look for the value inside the   
tags






=== (2) ===
 try changing your NSUTF8StringEncoding to NSASCIIStringEncoding  
like so...

NSString* tleString = [[[NSString alloc] initWithData:tleData
encoding: NSASCIIStringEncoding] autorelease];


-- Manoah Adams

On Jun 10, 2013, at 17:06 , Trygve Inda wrote:


I am using the following code (url changed, but it is a .txt file)

NSString* tleAddress = @"http://www.somesite.com/somefile.txt";;

NSURLRequest* tleRequest = [NSURLRequest requestWithURL:[NSURL
URLWithString:tleAddress] cachePolicy:0 timeoutInterval:5.0];

NSURLResponse* tleResponse = nil;

NSError* tleError = nil;

NSData* tleData = [NSURLConnection sendSynchronousRequest:tleRequest
returningResponse:&tleResponse error:&tleError];

NSString* tleString = [[[NSString alloc] initWithData:tleData
encoding:NSUTF8StringEncoding] autorelease];


This works fine on my test systems and the vast majority of my  
customer's
systems. I am able to open the URL in Safari and see that it is a  
raw text

file.

tleString comes back with the correct text.

However, on some customer's systems, despite NSError not showing  
anything

wrong, I get:

^M\nTransitional//EN"^M\n"http://www.w3.org/TR/html4/loose.dtd";>^M 
\n^M\n
ead>^M\n^M\nUntitled Document^M\nlanguage="javascript">^M\nvar loc = escape 
(document.location.href);^M\n
//var ref = escape(document.referrer);^M\nvar newLoc =
"/redirect.asp?loc=" + loc;^M\n
window.location.href(newLoc);^M\n^M\n^M\n^M 
\n^M\n
y>^M\n^M

I have no idea where this is coming from as it is certainly not in  
the file.

The customer is not using a proxy or firewall and it happens in two
different locations (so it could be related to the machine rather  
than the

internet).

Ideas?

Thanks,

Trygve



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