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package Net::DNSServer::Base; |
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1109
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use strict; |
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89
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use Carp qw(croak); |
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# Created before calling Net::DNSServer->run() |
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sub new { |
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my $class = shift || __PACKAGE__; |
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my $self = shift || {}; |
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return bless $self, $class; |
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} |
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# Called once at configuration load time by Net::DNSServer. |
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# Takes the Net::Server object as an argument. |
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sub init { |
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my $self = shift; |
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my $net_server = shift; |
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unless ($net_server && (ref $net_server) && ($net_server->isa("Net::Server"))) { |
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croak 'Usage> '.(__PACKAGE__).'->init($Net_Server_obj)'; |
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} |
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$self -> {net_server} = $net_server, |
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return 1; |
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} |
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# Called immediately after incoming request |
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# Takes the Net::DNS::Packet question as an argument |
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sub pre { |
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my $self = shift; |
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my $net_dns_packet = shift || croak 'Usage> $obj->resolve($Net_DNS_obj)'; |
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$self -> {question} = $net_dns_packet; |
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return 1; |
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} |
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# Called after all pre methods have finished |
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# Returns a Net::DNS::Packet object as the answer |
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# or undef to pass to the next module to resolve |
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sub resolve { |
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die "virtual function not implemented"; |
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} |
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# Called after resolve. |
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# Takes the Net::DNS::Packet question as an argument. |
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# If may modify $self->{answer_packet} before |
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# it is sent to the client. |
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sub post { |
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my $self = shift; |
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# my $net_dns_packet = shift || croak 'Usage> $obj->post($Net_DNS_obj)'; |
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0
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return 1; |
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} |
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# Called once prior to server shutdown |
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sub cleanup { |
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return 1; |
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} |
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56
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1; |
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58
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__END__ |