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use strict; |
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use warnings; |
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package Data::GUID::URLSafe 0.008; |
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# ABSTRACT: url-safe base64-encoded GUIDs |
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#pod =head1 SYNOPSIS |
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#pod |
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#pod use Data::GUID::URLSafe; |
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#pod |
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#pod my $guid = Data::GUID->new; |
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#pod |
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#pod my $string = $guid->as_base64_urlsafe; |
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#pod |
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#pod my $same_guid = Data::GUID->from_base64_urlsafe; |
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#pod |
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#pod This module provides methods for L that provide for |
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#pod URL-safe base64 encoded GUIDs, as described by |
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#pod L. |
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#pod |
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#pod These strings are also safer for email addresses. While the forward slash is |
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#pod legal in email addresses, some broken email address validators reject it. |
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#pod (Also, without the trailing equals signs, these strings will be shorter.) |
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#pod |
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#pod When Data::GUID::URLSafe is C |
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#pod L. |
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#pod |
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#pod =cut |
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use Data::GUID (); |
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use Sub::Exporter -setup => { |
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into => 'Data::GUID', |
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exports => [ qw(as_base64_urlsafe from_base64_urlsafe) ], |
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groups => [ default => [ -all ] ], |
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}; |
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#pod =method as_base64_urlsafe |
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#pod |
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#pod my $string = $guid->as_base64_urlsafe; |
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#pod |
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#pod This method returns the URL-safe base64 encoded representation of the GUID. |
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#pod |
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#pod =cut |
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sub as_base64_urlsafe { |
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my ($self) = @_; |
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my $base64 = $self->as_base64; |
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$base64 =~ tr{+/=}{-_}d; |
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return $base64; |
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} |
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#pod =method from_base64_urlsafe |
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#pod |
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#pod my $guid = Data::GUID->from_base64_urlsafe($string); |
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#pod |
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#pod =cut |
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sub from_base64_urlsafe { |
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my ($self, $string) = @_; |
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# +/ should not be handled, so convert them to invalid chars |
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# also, remove spaces (\t..\r and SP) so as to calc padding len |
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$string =~ tr{-_\t-\x0d }{+/}d; |
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if (my $mod4 = length($string) % 4) { |
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$string .= substr('====', $mod4); |
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} |
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return $self->from_base64($string); |
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} |
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1; |
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__END__ |