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package PGP::Finger::Keyserver; |
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use Moose; |
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extends 'PGP::Finger::Source'; |
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# ABSTRACT: gpgfinger source to query a keyserver |
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our $VERSION = '1.1'; # VERSION |
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use LWP::UserAgent; |
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use PGP::Finger::Result; |
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use PGP::Finger::Key; |
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has _agent => ( is => 'ro', isa => 'LWP::UserAgent', lazy => 1, |
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default => sub { |
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LWP::UserAgent->new; |
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}, |
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); |
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has 'exact' => ( is => 'rw', isa => 'Bool', default => 1 ); |
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has 'url' => ( is => 'rw', isa => 'Str', |
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default => 'http://a.keyserver.pki.scientia.net/pks/lookup', |
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); |
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sub fetch { |
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my ( $self, $addr ) = @_; |
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my @ids = $self->_query_index( $addr ); |
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my $result = PGP::Finger::Result->new( source => 'keyserver' ); |
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foreach my $id ( @ids ) { |
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my $armored = $self->_retrieve_keys('0x'.$id); |
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my $key = PGP::Finger::Key->new_armored( |
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mail => $addr, |
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data => $armored, |
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); |
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$key->set_attr( source => 'keyserver' ); |
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$key->set_attr( url => $self->url ); |
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$key->set_attr( keyid => $id ); |
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$result->add_key( $key ); |
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} |
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return $result; |
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} |
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sub _get { |
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my ( $self, %params ) = @_; |
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my $uri = URI->new( $self->url ); |
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$uri->query_form( \%params ); |
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my $request = HTTP::Request->new('GET', $uri); |
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my $response = $self->_agent->request( $request ); |
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if( ! $response->is_success ) { |
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die("keylookup for $uri failed: ".$response->status_line); |
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} |
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return $response; |
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} |
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sub _retrieve_keys { |
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my ( $self, $id ) = @_; |
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my $response = $self->_get( |
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search => $id, |
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op => 'get', |
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exact => $self->exact, |
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options => 'mr', |
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); |
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if( $response->content !~ /^-----BEGIN PGP PUBLIC KEY BLOCK-----/) { |
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die('returned content is not a PGP public key'); |
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} |
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return $response->content; |
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} |
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sub _query_index { |
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my ( $self, $addr ) = @_; |
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my @ids; |
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my $response = $self->_get( |
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search => $addr, |
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op => 'index', |
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exact => $self->exact, |
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options => 'mr', |
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); |
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my @lines = split(/\r?\n/, $response->content); |
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# info:<version>:<count> |
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# pub:<keyid>:<algo>:<keylen>:<creationdate>:<expirationdate>:<flags> |
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# ... |
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shift(@lines); |
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while( my $line = shift(@lines) ) { |
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if( $line !~ /^pub:/) { next; } |
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if( $line =~ /^pub:([^:]+):/) { |
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push( @ids, $1 ); |
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} else { |
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die("unknown line format: ".$line); |
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} |
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} |
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return( @ids ); |
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} |
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1; |
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100
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__END__ |
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102
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=pod |
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104
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=encoding UTF-8 |
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106
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=head1 NAME |
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108
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PGP::Finger::Keyserver - gpgfinger source to query a keyserver |
109
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110
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=head1 VERSION |
111
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112
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version 1.1 |
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114
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=head1 AUTHOR |
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116
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Markus Benning <ich@markusbenning.de> |
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118
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=head1 COPYRIGHT AND LICENSE |
119
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120
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This software is Copyright (c) 2015 by Markus Benning. |
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122
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This is free software, licensed under: |
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The GNU General Public License, Version 2 or later |
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126
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=cut |