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Man Pages


Manual Reference Pages  -  NET::SIP::DROPPER (3)

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NAME

Net::SIP::Dropper - drops SIP messages based on callback

CONTENTS

SYNOPSIS



        use Net::SIP::Dropper::ByIPPort;
        my $drop_by_ipport = Net::SIP::Dropper::ByIPPort->new(
                database => /path/to/database.drop,
                methods => [ REGISTER, ...,  ],
                attempts => 10,
                interval => 60,
        );

        use Net::SIP::Dropper::ByField;
        my $drop_by_field = Net::SIP::Dropper::ByField->new(
                methods => [ REGISTER, ...,  ],
                From => qr/sip(?:vicious|sscuser)/,
                User-Agent => qr/^friendly-scanner$/,
        );

        my $drop_subscribe = sub {
                my ($packet,$leg,$from) = @_;
                # drop all subscribe requests and responses
                return $packet->method eq SUBSCRIBE ? 1:0;
        };

        my $dropper = Net::SIP::Dropper->new(
                cbs => [ $drop_by_ipport, $drop_by_field, $drop_subscribe ]);

        my $chain = Net::SIP::ReceiveChain->new(
                [ $dropper, ... ]
        );



DESCRIPTION

Drops messages. This means, does no further processing in the Net::SIP chain and does not send something back if the incoming message match the settings.

Some useful droppers are defined in Net::SIP::Dropper::ByIpPort and Net::SIP::Dropper::ByField.

CONSTRUCTOR

new ( ARGS ) ARGS is a hash with key cb or cbs. cb is a single callback to be processed, cbs is an arrayref with callbacks. If one of the callbacks returns true the message will be dropped. If all callbacks return false the message will be forwarded in the chain.

Returns a new dropper object to be used in the chain.

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perl v5.20.3 NET::SIP::DROPPER (3) 2011-02-03

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