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/*
* FlickrCategory.h
* ----------------
* FlickrCategory - extending the built-in NSData, NSString, and NSDictionary classes with methods that make them more useful for interacting with the Flickr web services.
*
* Author: Chris Lee <clee@mg8.org>
* License: GPL v2 <http://www.opensource.org/licenses/gpl-license.php>
*/
#import "FlickrCategory.h"
@implementation NSData (Flickr)
- (NSString *)md5HexHash
{
unsigned char digest[16];
char finalDigest[32];
MD5([self bytes], [self length], digest);
for (unsigned short int i = 0; i < 16; i++)
sprintf(finalDigest + (i * 2), "%02x", digest[i]);
return [NSString stringWithCString: finalDigest length: 32];
}
@end
@implementation NSString (Flickr)
- (NSString *)md5HexHash
{
return [[self dataUsingEncoding: NSUTF8StringEncoding allowLossyConversion: NO] md5HexHash];
}
@end
@implementation NSDictionary (Flickr)
- (NSArray *)pairsJoinedByString: (NSString *)j
{
NSArray *sortedKeys = [[self allKeys] sortedArrayUsingSelector: @selector(caseInsensitiveCompare:)];
NSMutableArray *allKeysAndObjects = [NSMutableArray array];
for (unsigned int i = 0; i < [sortedKeys count]; i++) {
NSString *key = [sortedKeys objectAtIndex: i];
NSString *val = [self objectForKey: key];
[allKeysAndObjects addObject: [NSString stringWithFormat: @"%@%@%@", key, j, val]];
}
return [NSArray arrayWithArray: allKeysAndObjects];
}
@end
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