Created
September 11, 2013 06:19
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A category on NSString that exploits a set of CoreFoundation methods to create Base64 encoded strings. This is a simple solution that removes the need for external Base64 libraries in projects that targets apps that support iOS 2 - iOS 6. iOS 7 has a more concrete solution, but due to NDA, I cannot post it yet.
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| + (NSString *)base64EncodeString:(NSString *)stringToEncode | |
| { | |
| CFHTTPMessageRef messageRef = CFHTTPMessageCreateEmpty(kCFAllocatorDefault, FALSE); | |
| CFHTTPMessageAddAuthentication(messageRef, NULL, CFSTR("AS"), (__bridge CFStringRef)stringToEncode, kCFHTTPAuthenticationSchemeBasic, FALSE); | |
| CFStringRef authStringRef = CFHTTPMessageCopyHeaderFieldValue(messageRef, CFSTR("Authorization")); | |
| NSString *encodedString = [(__bridge NSString *)authStringRef substringFromIndex:10]; | |
| CFRelease(messageRef); | |
| CFRelease(authStringRef); | |
| return encodedString; | |
| } |
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