/usr/share/perl5/AnyEvent/FCGI/Connection.pm is in libanyevent-fcgi-perl 0.04-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 | package AnyEvent::FCGI::Connection;
=head1 NAME
AnyEvent::FCGI::Connection - a single connection handle for L<AnyEvent::FCGI>
=head1 DESCRIPTION
This module represents a single connection for L<AnyEvent::FCGI>
This module would not be used directly by a program using C<AnyEvent::FCGI>.
=cut
use strict;
use warnings;
use Scalar::Util qw/weaken refaddr/;
use AnyEvent::Handle;
use AnyEvent::FCGI::Request;
use constant MAX_DATA_SIZE => 65535;
sub new {
my ($class, %params) = @_;
my $self = bless {
fcgi => $params{fcgi},
requests => {},
}, $class;
$self->{io} = new AnyEvent::Handle(
fh => $params{fh},
on_error => sub {$self->_on_error(@_)},
);
$self->{io}->push_read(chunk => 8, sub {$self->_on_read_header(@_)});
weaken($self->{fcgi});
return $self;
}
sub _on_error {
my ($self, $io, $fatal, $message) = @_;
if ($fatal) {
$self->_shutdown;
}
}
sub _shutdown {
my ($self) = @_;
$self->{requests} = {};
delete $self->{fcgi}->{connections}->{refaddr($self)};
}
sub _on_read_header {
my ($self, $io, $header) = @_;
my %record;
(
$record{version},
$record{type},
$record{request_id},
$record{length},
$record{padding},
undef
) = unpack('ccnncc', $header);
$self->{record} = \%record;
$io->push_read(chunk => ($record{length} + $record{padding}), sub {$self->_on_read_content(@_)});
}
sub _on_read_content {
my ($self, $io, $data) = @_;
$self->{record}->{content} = substr($data, 0, $self->{record}->{length});
$self->_process_record($self->{record});
$io->push_read(chunk => 8, sub {$self->_on_read_header(@_)});
}
sub _process_record {
my ($self, $record) = @_;
return unless $record->{version} == AnyEvent::FCGI->FCGI_VERSION_1;
my $request = $self->{requests}->{$record->{request_id}};
if ($record->{type} == AnyEvent::FCGI->FCGI_BEGIN_REQUEST) {
unless (defined $request) {
my ($role, $flags) = unpack('nc', $record->{content});
if ($role == AnyEvent::FCGI->FCGI_RESPONDER) {
$self->{requests}->{$record->{request_id}} = new AnyEvent::FCGI::Request(
fcgi => $self->{fcgi},
connection => $self,
flags => $flags,
id => $record->{request_id},
);
} else {
warn 'AnyEvent::FCGI supports only responder role';
}
} else {
warn "Request '$record->{request_id}' already running";
}
} elsif ($record->{type} == AnyEvent::FCGI->FCGI_STDIN && defined $request) {
$request->_process_stdin_record($record);
} elsif ($record->{type} == AnyEvent::FCGI->FCGI_PARAMS && defined $request) {
$request->_process_params_record($record);
} elsif ($record->{type} == AnyEvent::FCGI->FCGI_ABORT_REQUEST && defined $request) {
delete $request->{connection};
delete $self->{requests}->{$request->{id}};
}
}
sub send_record {
my ($self, $record) = @_;
if (length $record->{content} > MAX_DATA_SIZE) {
warn 'Record content length > MAX_DATA_SIZE, truncating';
$record->{content} = substr($record->{content}, 0, MAX_DATA_SIZE);
}
$self->{io}->push_write(
pack('ccnncc',
AnyEvent::FCGI->FCGI_VERSION_1,
$record->{type},
$record->{request_id},
length $record->{content},
0,
0,
) . $record->{content}
);
}
sub DESTROY {
my ($self) = @_;
if ($self) {
$self->_shutdown;
}
}
1;
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