MIME::Base64::URLSafe − Perl version of Python’s URL−safe base64 codec
use MIME::Base64::URLSafe; $encoded = urlsafe_b64encode('Alladdin: open sesame'); $decoded = urlsafe_b64decode($encoded);
This module is a perl version of python’s URL-safe base64 encoder / decoder.
When embedding binary data in URL , it is preferable to use base64 encoding. However, two characters (’+’ and ’/’) used in the standard base64 encoding have special meanings in URLs, often leading to re-encoding with URL-encoding, or worse, interoperability problems.
To overcome the problem, the module provides a variation of base64 codec compatible with python’s urlsafe_b64encode / urlsafe_b64decode.
Modification rules from base64:
use '−' and '_' instead of '+' and '/' no line feeds no trailing equals (=)
The following functions are provided:
If you prefer not to import these routines to your namespace, you can call them as:
use MIME::Base64::URLSafe (); $encoded = MIME::Base64::URLSafe::encode($decoded); $decoded = MIME::Base64::URLSafe::decode($encoded);
Fore more discussion on using base64 encoding in URL applications, see: http://en.wikipedia.org/wiki/Base64#URL_Applications
Kazuho Oku <kazuho ___at___ labs.cybozu.co.jp>
Copyright (C) 2006 Cybozu Labs, Inc.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.7 or, at your option, any later version of Perl 5 you may have available.