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Edit File: Net::SIP::Dropper.3pm

.\" Automatically generated by Pod::Man 4.14 (Pod::Simple 3.42) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. Capital omega is used to do unbreakable dashes and .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, .\" nothing in troff, for use with C<>. .tr \(*W- .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' .ie n \{\ . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} .el\{\ . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' . ds C` . ds C' 'br\} .\" .\" Escape single quotes in literal strings from groff's Unicode transform. .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" .\" If the F register is >0, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index .\" entries marked with X<> in POD. Of course, you'll have to process the .\" output yourself in some meaningful fashion. .\" .\" Avoid warning from groff about undefined register 'F'. .de IX .. .nr rF 0 .if \n(.g .if rF .nr rF 1 .if (\n(rF:(\n(.g==0)) \{\ . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF .\" ======================================================================== .\" .IX Title "Net::SIP::Dropper 3pm" .TH Net::SIP::Dropper 3pm "2021-05-04" "perl v5.34.0" "User Contributed Perl Documentation" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" Net::SIP::Dropper \- drops SIP messages based on callback .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 7 \& use Net::SIP::Dropper::ByIPPort; \& my $drop_by_ipport = Net::SIP::Dropper::ByIPPort\->new( \& database => \*(Aq/path/to/database.drop\*(Aq, \& methods => [ \*(AqREGISTER\*(Aq, \*(Aq...\*(Aq, \*(Aq\*(Aq ], \& attempts => 10, \& interval => 60, \& ); \& \& use Net::SIP::Dropper::ByField; \& my $drop_by_field = Net::SIP::Dropper::ByField\->new( \& methods => [ \*(AqREGISTER\*(Aq, \*(Aq...\*(Aq, \*(Aq\*(Aq ], \& \*(AqFrom\*(Aq => qr/sip(?:vicious|sscuser)/, \& \*(AqUser\-Agent\*(Aq => qr/^friendly\-scanner$/, \& ); \& \& my $drop_subscribe = sub { \& my ($packet,$leg,$from) = @_; \& # drop all subscribe requests and responses \& return $packet\->method eq \*(AqSUBSCRIBE\*(Aq ? 1:0; \& }; \& \& my $dropper = Net::SIP::Dropper\->new( \& cbs => [ $drop_by_ipport, $drop_by_field, $drop_subscribe ]); \& \& my $chain = Net::SIP::ReceiveChain\->new( \& [ $dropper, ... ] \& ); .Ve .SH "DESCRIPTION" .IX Header "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. .PP Some useful droppers are defined in Net::SIP::Dropper::ByIpPort and Net::SIP::Dropper::ByField. .SH "CONSTRUCTOR" .IX Header "CONSTRUCTOR" .IP "new ( \s-1ARGS\s0 )" 4 .IX Item "new ( ARGS )" \&\s-1ARGS\s0 is a hash with key \f(CW\*(C`cb\*(C'\fR \fIor\fR \f(CW\*(C`cbs\*(C'\fR. \f(CW\*(C`cb\*(C'\fR is a single callback to be processed, \f(CW\*(C`cbs\*(C'\fR 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. .Sp Returns a new dropper object to be used in the chain.