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// Copyright (c) 2006 Dave Dribin (http://www.dribin.org/dave/)
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#import "NSData+Base64Extensions.h"
#include <openssl/bio.h>
#include <openssl/evp.h>
@implementation NSData (Base64)
- (NSString *) encodeBase64;
{
return [self encodeBase64WithNewlines: YES];
}
- (NSString *) encodeBase64WithNewlines: (BOOL) encodeWithNewlines;
{
// Create a memory buffer which will contain the Base64 encoded string
BIO * mem = BIO_new(BIO_s_mem());
// Push on a Base64 filter so that writing to the buffer encodes the data
BIO * b64 = BIO_new(BIO_f_base64());
if (!encodeWithNewlines)
BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
mem = BIO_push(b64, mem);
// Encode all the data
BIO_write(mem, [self bytes], [self length]);
BIO_flush(mem);
// Create a new string from the data in the memory buffer
char * base64Pointer;
long base64Length = BIO_get_mem_data(mem, &base64Pointer);
NSString * base64String = [NSString stringWithCString: base64Pointer
length: base64Length];
// Clean up and go home
BIO_free_all(mem);
return base64String;
}
@end
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