Re: base64Binary
Re: base64Binary
- Subject: Re: base64Binary
- From: joby abraham <email@hidden>
- Date: Thu, 15 Apr 2010 02:28:54 +0530
Hi Bialecki,
It always better use library which provided by MAC OS.
Thanks& regards,
Joby Abraham.
On Thu, Apr 15, 2010 at 02:17, Jean-Daniel Dupas <email@hidden>wrote:
> Google provide some class to do that too.
>
> See GTMBase64 classes at
> http://code.google.com/p/google-toolbox-for-mac/source/browse/#svn/trunk/Foundation
>
> Le 14 avr. 2010 à 22:00, joby abraham a écrit :
>
> > Hi Bialecki,
> >
> > for base64 encoding/decoding you can use openSSL Library which providing
> by
> > MAC OS.
> >
> > I can give you code snippets for encoding and decoding string.
> >
> > #include <openssl/bio.h>
> > #include <openssl/evp.h>
> >
> > - (NSString *)base64EncodedString
> > {
> > // Construct an OpenSSL context
> > BIO *context = BIO_new(BIO_s_mem());
> >
> > // Tell the context to encode base64
> > BIO *command = BIO_new(BIO_f_base64());
> > context = BIO_push(command, context);
> >
> > // Encode all the data
> > BIO_write(context, [self bytes], [self length]);
> > BIO_flush(context);
> >
> > // Get the data out of the context
> > char *outputBuffer;
> > long outputLength = BIO_get_mem_data(context, &outputBuffer);
> > NSString *encodedString = [NSString
> > stringWithCString:outputBuffer
> > length:outputLength];
> >
> > BIO_free_all(context);
> >
> > return encodedString;
> > }
> >
> >
> > + (NSData *)dataByDase64DecodingString:(NSString *)decode
> > {
> > decode = [decode stringByAppendingString:@"\n"];
> > NSData *data = [decode dataUsingEncoding:NSASCIIStringEncoding];
> >
> > // Construct an OpenSSL context
> > BIO *command = BIO_new(BIO_f_base64());
> > BIO *context = BIO_new_mem_buf((void *)[data bytes], [data length]);
> >
> > // Tell the context to encode base64
> > context = BIO_push(command, context);
> >
> > // Encode all the data
> > NSMutableData *outputData = [NSMutableData data];
> >
> > #define BUFFSIZE 256
> > int len;
> > char inbuf[BUFFSIZE];
> > while ((len = BIO_read(context, inbuf, BUFFSIZE)) > 0)
> > {
> > [outputData appendBytes:inbuf length:len];
> > }
> >
> > BIO_free_all(context);
> > [data self]; // extend GC lifetime of data to here
> >
> > return outputData;
> > }
> >
> >
> > 2010/4/14 Bartosz Bialecki <email@hidden>
> >
> >> Hi everyone,
> >> I have some problem. I'm writing a web service client and one of my xml
> >> request require a data encoded as base64Binary. I'm using NSData type in
> my
> >> application but data are encoded as base64. Do you know any solution?
> >>
> >> Best regards,
> >> Bartosz Bialecki
> >> _______________________________________________
> >>
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> >
> >
> >
> > --
> > Thanks & Regards,
> > Joby Abraham.
> > _______________________________________________
> >
> > Cocoa-dev mailing list (email@hidden)
> >
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>
> -- Jean-Daniel
>
>
>
>
>
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