CODEWITHSUNDEEP
objective-c
user979331
user979331

Reputation: 11841

Objective-C URL encoding issues

I am creating a URL string like so:

[Items appendString:[object objectForKey:@"Items"]];
[Items appendString:@"*"];
[Items deleteCharactersInRange:NSMakeRange([Items length]-1, 1)];
//This returns this: ~SEWER/FLATWORK SUPPLY & INSTALL - 25% of CONTRACT*~SEWER/FLATWORK SUPPLY & INSTALL - 75% of CONTRACT*SUMP PUMP PIT

//add Items to URL
NSString *fullURL = [NSString stringWithFormat:@"https://example.com?Items=%@, [Items stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];

but it returns like so:

Items=~SEWER/FLATWORK%20SUPPLY%20&%20INSTALL%20-%2025%25%20of%20CONTRACT*~SEWER/FLATWORK%20SUPPLY%20&%20INSTALL%20-%2075%25%20of%20CONTRACT*SUMP%20PUMP%20PIT

how do I get it return like this:

%20%26%20 instead of %20&%20 for the & ?

Upvotes: 2

Views: 195

Answers (3)

JeremyP
JeremyP

Reputation: 86651

I think the issue is that the method tries to be too clever - it only does as much as is necessary to get a legal URL and because you don't have a question mark in your string, it probably thinks it is OK to leave the ampersands in.

Try constructing the whole URL and do the escaping on the whole URL. 

NSString *fullURL = [[@"https://example.com?Items=" stringByAppendingString: items]                       
                      stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

Or perhaps use stringByAddingPercentEncodingWithAllowedCharacters:.

Upvotes: 2

Mahi
Mahi

Reputation: 181

Use CFURLCreateStringByAddingPercentEscapes() for getting UTF8stringencoding of characters

NSString *urlString = CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, (__bridge CFStringRef) Items, NULL, CFSTR("!*'();:@&=+$,/?%#[]"), kCFStringEncodingUTF8))

Upvotes: 0

Sam B
Sam B

Reputation: 27598

Try this.

fullURL=[fullURL stringByReplacingOccurrencesOfString:@"&" withString:@"%26"];
NSLog(@"fullURL: %@ ...", fullURL);

Upvotes: 0

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