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package ThreatNet::Topic; |
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=pod |
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=head1 NAME |
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ThreatNet::Topic - An object representation of a ThreatNet channel topic |
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=head1 DESCRIPTION |
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ThreatNet is an evolving idea. This standalone module defines a topic format |
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and an object to hold it. ThreatNet itself is not yet available. |
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A proposal generally defining what it B be is available at: |
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=head1 METHODS |
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=cut |
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use strict; |
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use URI (); |
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use overload 'bool' => sub () { 1 }, |
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'""' => 'topic'; |
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use vars qw{$VERSION}; |
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BEGIN { |
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$VERSION = '0.20'; |
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} |
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##################################################################### |
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# Constructor and Accessors |
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=pod |
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=head2 new $topic |
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The C constructor takes a new ThreatNet topic string and creates an |
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object that represents it. |
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A ThreatNet topic should look like the following |
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threatnet://host/path configuration |
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That is, it should start with a 'threatnet' URI identifier in the same |
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style as XML namespace URIs, containing at least the host and path |
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components, following an arbitrary string most likely representing the |
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configuration and rules of the channel, with a format defined by the |
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protocol. |
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Returns a new ThreatNet::Topic object or C if the string is not a |
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valid ThreatNet topic string. |
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=cut |
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sub new { |
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my $class = ref $_[0] ? ref shift : shift; |
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my $string = defined $_[0] ? shift : return undef; |
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# Create the object |
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my $self = bless { |
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topic => $string, |
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config => $string, |
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}, $class; |
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# Extract the header URI |
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$self->{config} =~ s/^(\S+)\s*// or return undef; |
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$self->{URI} = URI->new("$1") or return undef; |
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# Check the URI |
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$self->{URI}->scheme and $self->{URI}->scheme eq 'threatnet' or return undef; |
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$self->{URI}->authority and $self->{URI}->authority or return undef; |
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$self->{URI}->path and $self->{URI}->path or return undef; |
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$self; |
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} |
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=pod |
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=head2 topic |
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Accessor method that returns the Topic as a topic string. |
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=cut |
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sub topic { $_[0]->{topic} } |
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=pod |
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=head2 URI |
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Accessor method that returns the protocol identifier as a URI object |
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=cut |
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sub URI { $_[0]->{URI} } |
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=pod |
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=head2 config |
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Accessor method that returns the non-required protocol-specific part of |
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the topic, which is assumed to hold the channel configuration. |
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=cut |
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sub config { $_[0]->{config} } |
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1; |
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=pod |
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=head1 SUPPORT |
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All bugs should be filed via the bug tracker at |
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For other issues, or commercial enhancement and support, contact the author |
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=head1 AUTHORS |
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Adam Kennedy Eadamk@cpan.orgE |
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=head1 SEE ALSO |
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=head1 COPYRIGHT |
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Copyright (c) 2004 Adam Kennedy. All rights reserved. |
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This program is free software; you can redistribute |
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it and/or modify it under the same terms as Perl itself. |
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The full text of the license can be found in the |
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LICENSE file included with this module. |
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=cut |