/usr/share/perl5/Mojo/IOLoop/Server.pm is in libmojolicious-perl 2.23-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 | package Mojo::IOLoop::Server;
use Mojo::Base 'Mojo::EventEmitter';
use Carp 'croak';
use File::Spec;
use IO::File;
use IO::Socket::INET;
use Scalar::Util 'weaken';
use Socket qw/IPPROTO_TCP TCP_NODELAY/;
# IPv6 support requires IO::Socket::IP
use constant IPV6 => $ENV{MOJO_NO_IPV6}
? 0
: eval 'use IO::Socket::IP 0.06 (); 1';
# TLS support requires IO::Socket::SSL
use constant TLS => $ENV{MOJO_NO_TLS}
? 0
: eval 'use IO::Socket::SSL 1.37 "inet4"; 1';
use constant TLS_READ => TLS ? IO::Socket::SSL::SSL_WANT_READ() : 0;
use constant TLS_WRITE => TLS ? IO::Socket::SSL::SSL_WANT_WRITE() : 0;
# Default TLS cert (20.03.2010)
# (openssl req -new -x509 -keyout cakey.pem -out cacert.pem -nodes -days 7300)
use constant CERT => <<EOF;
-----BEGIN CERTIFICATE-----
MIIDbzCCAtigAwIBAgIJAM+kFv1MwalmMA0GCSqGSIb3DQEBBQUAMIGCMQswCQYD
VQQGEwJERTEWMBQGA1UECBMNTmllZGVyc2FjaHNlbjESMBAGA1UEBxMJSGFtYmVy
Z2VuMRQwEgYDVQQKEwtNb2pvbGljaW91czESMBAGA1UEAxMJbG9jYWxob3N0MR0w
GwYJKoZIhvcNAQkBFg5rcmFpaEBjcGFuLm9yZzAeFw0xMDAzMjAwMDQ1MDFaFw0z
MDAzMTUwMDQ1MDFaMIGCMQswCQYDVQQGEwJERTEWMBQGA1UECBMNTmllZGVyc2Fj
aHNlbjESMBAGA1UEBxMJSGFtYmVyZ2VuMRQwEgYDVQQKEwtNb2pvbGljaW91czES
MBAGA1UEAxMJbG9jYWxob3N0MR0wGwYJKoZIhvcNAQkBFg5rcmFpaEBjcGFuLm9y
ZzCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAzu9mOiyUJB2NBuf1lZxViNM2
VISqRAoaXXGOBa6RgUoVfA/n81RQlgvVA0qCSQHC534DdYRk3CdyJR9UGPuxF8k4
CckOaHWgcJJsd8H0/q73PjbA5ItIpGTTJNh8WVpFDjHTJmQ5ihwddap4/offJxZD
dPrMFtw1ZHBRug5tHUECAwEAAaOB6jCB5zAdBgNVHQ4EFgQUo+Re5wuuzVFqH/zV
cxRGXL0j5K4wgbcGA1UdIwSBrzCBrIAUo+Re5wuuzVFqH/zVcxRGXL0j5K6hgYik
gYUwgYIxCzAJBgNVBAYTAkRFMRYwFAYDVQQIEw1OaWVkZXJzYWNoc2VuMRIwEAYD
VQQHEwlIYW1iZXJnZW4xFDASBgNVBAoTC01vam9saWNpb3VzMRIwEAYDVQQDEwls
b2NhbGhvc3QxHTAbBgkqhkiG9w0BCQEWDmtyYWloQGNwYW4ub3JnggkAz6QW/UzB
qWYwDAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQUFAAOBgQCZZcOeAobctD9wtPtO
40CKHpiGYEM3rh7VvBhjTcVnX6XlLvffIg3uTrVRhzmlEQCZz3O5TsBzfMAVnjYz
llhwgRF6Xn8ict9L8yKDoGSbw0Q7HaCb8/kOe0uKhcSDUd3PjJU0ZWgc20zcGFA9
R65bABoJ2vU1rlQFmjs0RT4UcQ==
-----END CERTIFICATE-----
EOF
# Default TLS key (20.03.2010)
# (openssl req -new -x509 -keyout cakey.pem -out cacert.pem -nodes -days 7300)
use constant KEY => <<EOF;
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
EOF
has accepts => 10;
has iowatcher => sub {
require Mojo::IOLoop;
Mojo::IOLoop->singleton->iowatcher;
};
sub DESTROY {
my $self = shift;
if (my $port = $self->{port}) { $ENV{MOJO_REUSE} =~ s/(?:^|\,)$port\:\d+// }
if (my $cert = $self->{cert}) { unlink $cert if -w $cert }
if (my $key = $self->{key}) { unlink $key if -w $key }
return unless my $watcher = $self->{iowatcher};
$self->pause if $self->{handle};
$watcher->drop_handle($_) for values %{$self->{handles}};
}
# "And I gave that man directions, even though I didn't know the way,
# because that's the kind of guy I am this week."
sub listen {
my $self = shift;
my $args = ref $_[0] ? $_[0] : {@_};
# Look for reusable file descriptor
my $reuse = my $port = $self->{port} = $args->{port} || 3000;
$ENV{MOJO_REUSE} ||= '';
my $fd;
if ($ENV{MOJO_REUSE} =~ /(?:^|\,)$reuse\:(\d+)/) { $fd = $1 }
# Allow file descriptor inheritance
local $^F = 1000;
# Reuse file descriptor
my $handle;
my $class = IPV6 ? 'IO::Socket::IP' : 'IO::Socket::INET';
if (defined $fd) {
$handle = $class->new;
$handle->fdopen($fd, 'r')
or croak "Can't open file descriptor $fd: $!";
}
# New socket
else {
my %options = (
Listen => $args->{backlog} // SOMAXCONN,
LocalAddr => $args->{address} || '0.0.0.0',
LocalPort => $port,
Proto => 'tcp',
ReuseAddr => 1,
Type => SOCK_STREAM,
%{$args->{args} || {}}
);
$options{LocalAddr} =~ s/[\[\]]//g;
$handle = $class->new(%options)
or croak "Can't create listen socket: $!";
$fd = fileno $handle;
$reuse = ",$reuse" if length $ENV{MOJO_REUSE};
$ENV{MOJO_REUSE} .= "$reuse:$fd";
}
$handle->blocking(0);
$self->{handle} = $handle;
# TLS
return unless $args->{tls};
croak "IO::Socket::SSL 1.37 required for TLS support" unless TLS;
# Options
my %options = (
SSL_startHandshake => 0,
SSL_cert_file => $args->{tls_cert} || $self->_cert_file,
SSL_key_file => $args->{tls_key} || $self->_key_file,
);
%options = (
SSL_verify_callback => $args->{tls_verify},
SSL_ca_file => -T $args->{tls_ca} ? $args->{tls_ca} : undef,
SSL_ca_path => -d $args->{tls_ca} ? $args->{tls_ca} : undef,
SSL_verify_mode => $args->{tls_ca} ? 0x03 : undef,
%options
) if $args->{tls_ca};
$self->{tls} = {%options, %{$args->{tls_args} || {}}};
}
sub generate_port {
# Try random ports
my $port = 1 . int(rand 10) . int(rand 10) . int(rand 10) . int(rand 10);
while ($port++ < 30000) {
return $port
if IO::Socket::INET->new(
Listen => 5,
LocalAddr => '127.0.0.1',
LocalPort => $port,
Proto => 'tcp'
);
}
return;
}
sub pause {
my $self = shift;
$self->iowatcher->drop_handle($self->{handle});
}
sub resume {
my $self = shift;
weaken $self;
$self->iowatcher->watch($self->{handle},
on_readable => sub { $self->_accept for 1 .. $self->accepts });
}
sub _accept {
my $self = shift;
# Accept
return unless my $handle = $self->{handle}->accept;
$handle->blocking(0);
# Disable Nagle's algorithm
setsockopt $handle, IPPROTO_TCP, TCP_NODELAY, 1;
# Start TLS handshake
return $self->emit_safe(accept => $handle) unless my $tls = $self->{tls};
weaken $self;
$tls->{SSL_error_trap} = sub {
return unless my $handle = delete $self->{handles}->{shift()};
$self->iowatcher->drop_handle($handle);
close $handle;
};
$handle = IO::Socket::SSL->start_SSL($handle, %$tls);
$self->iowatcher->watch(
$handle,
on_readable => sub { $self->_tls($handle) },
on_writable => sub { $self->_tls($handle) }
);
$self->{handles}->{$handle} = $handle;
}
sub _cert_file {
my $self = shift;
# Check if temporary TLS cert file already exists
my $cert = $self->{cert};
return $cert if $cert && -r $cert;
# Create temporary TLS cert file
$cert = File::Spec->catfile($ENV{MOJO_TMPDIR} || File::Spec->tmpdir,
'mojocert.pem');
croak qq/Can't create temporary TLS cert file "$cert"/
unless my $file = IO::File->new("> $cert");
print $file CERT;
$self->{cert} = $cert;
}
sub _key_file {
my $self = shift;
# Check if temporary TLS key file already exists
my $key = $self->{key};
return $key if $key && -r $key;
# Create temporary TLS key file
$key = File::Spec->catfile($ENV{MOJO_TMPDIR} || File::Spec->tmpdir,
'mojokey.pem');
croak qq/Can't create temporary TLS key file "$key"/
unless my $file = IO::File->new("> $key");
print $file KEY;
$self->{key} = $key;
}
# "Where on my badge does it say anything about protecting people?
# Uh, second word, chief."
sub _tls {
my ($self, $handle) = @_;
# Accepted
if ($handle->accept_SSL) {
$self->iowatcher->drop_handle($handle);
delete $self->{handles}->{$handle};
return $self->emit_safe(accept => $handle);
}
# Switch between reading and writing
my $error = $IO::Socket::SSL::SSL_ERROR;
if ($error == TLS_READ) { $self->iowatcher->change($handle, 1, 0) }
elsif ($error == TLS_WRITE) { $self->iowatcher->change($handle, 1, 1) }
}
1;
__END__
=head1 NAME
Mojo::IOLoop::Server - IOLoop socket server
=head1 SYNOPSIS
use Mojo::IOLoop::Server;
# Create listen socket
my $server = Mojo::IOLoop::Server->new;
$server->on(accept => sub {
my ($server, $handle) = @_;
...
});
$server->listen(port => 3000);
# Start and stop accepting connections
$server->resume;
$server->pause;
=head1 DESCRIPTION
L<Mojo::IOLoop::Server> accepts incoming socket connections for
L<Mojo::IOLoop>.
Note that this module is EXPERIMENTAL and might change without warning!
=head1 EVENTS
L<Mojo::IOLoop::Server> can emit the following events.
=head2 C<accept>
$server->on(accept => sub {
my ($server, $handle) = @_;
});
Emitted for each accepted connection.
=head1 ATTRIBUTES
L<Mojo::IOLoop::Server> implements the following attributes.
=head2 C<accepts>
my $accepts = $server->accepts;
$server = $server->accepts(10);
Number of connections to accept at once, defaults to C<10>.
=head2 C<iowatcher>
my $watcher = $server->iowatcher;
$server = $server->iowatcher(Mojo::IOWatcher->new);
Low level event watcher, defaults to the C<iowatcher> attribute value of the
global L<Mojo::IOLoop> singleton.
=head1 METHODS
L<Mojo::IOLoop::Server> inherits all methods from L<Mojo::EventEmitter> and
implements the following new ones.
=head2 C<listen>
$server->listen(port => 3000);
Create a new listen socket.
Note that TLS support depends on L<IO::Socket::SSL> and IPv6 support on
L<IO::Socket::IP>.
These options are currently available:
=over 2
=item C<address>
Local address to listen on, defaults to all.
=item C<backlog>
Maximum backlog size, defaults to C<SOMAXCONN>.
=item C<port>
Port to listen on.
=item C<tls>
Enable TLS.
=item C<tls_cert>
Path to the TLS cert file, defaulting to a built-in test certificate.
=item C<tls_key>
Path to the TLS key file, defaulting to a built-in test key.
=item C<tls_ca>
Path to TLS certificate authority file or directory.
=back
=head2 C<generate_port>
my $port = $server->generate_port;
Find a free TCP port.
=head2 C<pause>
$server->pause;
Stop accepting connections.
=head2 C<resume>
$server->resume;
Start accepting connections.
=head1 SEE ALSO
L<Mojolicious>, L<Mojolicious::Guides>, L<http://mojolicio.us>.
=cut
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