Help decrypt iPhone application code

Question

Can someone please help me decrypt this code? It is executed when the user presses a button to send data, or in this case a “question” in the iPhone application.

I know that it sends a string to my phpscript.php hosted on the server, but I am not familiar with the long list of commands.

NSUserDefaults *p = [NSUserDefaults standardUserDefaults];
[p setObject:[NSString stringWithContentsOfURL:[NSURL URLWithString:[NSString stringWithFormat:@"http://website.com/phpscript.php?user=%@&pass=%@&cat=%@&sub=%@&body=%@",[[p valueForKey:@"user"] stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding],[[p valueForKey:@"pass"] stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding],sport,@"",[[tvQ.text stringByReplacingOccurrencesOfString:@"\n" withString:@" "] stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]]]] forKey:@"q"];

Answer 1

Interrupting this simplifies the task.

NSUserDefaults *p = [NSUserDefaults standardUserDefaults];
NSString* string1 = [[p valueForKey:@"user"] stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
NSString* string2 = [[p valueForKey:@"pass"] stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
NSString* string3 = [[tvQ.text stringByReplacingOccurrencesOfString:@"\n" withString:@" "] stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
NSString* urlString = [NSString stringWithFormat:@"http://website.com/phpscript.php?user=%@&pass=%@&cat=%@&sub=%@&body=%@",string1,string2,sport,@"",string3];
id val1 = [NSString stringWithContentsOfURL:[NSURL URLWithString:urlString]];
[p setObject:val1 forKey:@"q"];

So, p is a dictionary object loaded from user defaults, it looks like some credentials, which are probably saved from the last application launch.

stringByAddingPercentEscapesUsingEncoding - , , "" "%" . , , , .

String1 String2 - . String3 - , .

URL- , , urlString ( , - , ). p @ "q".

:

[myString replaceOccurrencesOfString:@"&" withString:@"%26" options:NSCaseInsensitiveSearch range:wholeString];

- , .

Answer 2

tvQ.text, , URL, , , ( , ). url, NSURL NSString. NSURL "q" .

.