Async qpsmtpd (still entirely compatible with non-async version)
git-svn-id: https://svn.perl.org/qpsmtpd/branches/0.3x@679 958fd67b-6ff1-0310-b445-bb7760255be9
This commit is contained in:
Matt Sergeant
parent
0449fbfb50
commit
2b709d664c
@ -348,7 +348,7 @@ sub run_hooks {
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$self->{_continuation} = [$hook, [@_], @local_hooks];
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return $self->run_continuation();
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}
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return (0, '');
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return $self->hook_responder($hook, [0, ''], [@_]);
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}
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sub run_continuation {
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@ -423,7 +423,7 @@ sub hook_responder {
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my $responder = $hook . '_respond';
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if (my $meth = $self->can($responder)) {
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return $meth->($self, $code, $msg, @$args);
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return $meth->($self, $code, $msg, $args);
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}
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return $code, @$msg;
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}
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392
lib/Qpsmtpd/PollServer.pm
Normal file
392
lib/Qpsmtpd/PollServer.pm
Normal file
@ -0,0 +1,392 @@
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# $Id: Server.pm,v 1.10 2005/02/14 22:04:48 msergeant Exp $
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package Qpsmtpd::PollServer;
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use base ('Danga::Client', 'Qpsmtpd::SMTP');
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# use fields required to be a subclass of Danga::Client. Have to include
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# all fields used by Qpsmtpd.pm here too.
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use fields qw(
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input_sock
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mode
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header_lines
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in_header
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data_size
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max_size
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hooks
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start_time
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cmd_timeout
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_auth_mechanism
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_auth_state
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_auth_ticket
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_auth_user
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_commands
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_config_cache
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_connection
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_transaction
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_test_mode
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_extras
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_continuation
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);
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use Qpsmtpd::Constants;
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use Qpsmtpd::Address;
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use ParaDNS;
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use Mail::Header;
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use POSIX qw(strftime);
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use Socket qw(inet_aton AF_INET CRLF);
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use Time::HiRes qw(time);
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use strict;
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sub max_idle_time { 60 }
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sub max_connect_time { 1200 }
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sub input_sock {
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my $self = shift;
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@_ and $self->{input_sock} = shift;
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$self->{input_sock} || $self;
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}
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sub new {
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my Qpsmtpd::PollServer $self = shift;
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$self = fields::new($self) unless ref $self;
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$self->SUPER::new( @_ );
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$self->{cmd_timeout} = 5;
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$self->{start_time} = time;
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$self->{mode} = 'connect';
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$self->load_plugins;
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$self->load_logging;
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return $self;
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}
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sub uptime {
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my Qpsmtpd::PollServer $self = shift;
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return (time() - $self->{start_time});
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}
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sub reset_for_next_message {
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my Qpsmtpd::PollServer $self = shift;
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$self->SUPER::reset_for_next_message(@_);
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$self->{_commands} = {
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ehlo => 1,
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helo => 1,
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rset => 1,
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mail => 1,
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rcpt => 1,
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data => 1,
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help => 1,
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vrfy => 1,
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noop => 1,
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quit => 1,
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auth => 0, # disabled by default
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};
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$self->{mode} = 'cmd';
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$self->{_extras} = {};
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}
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sub respond {
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my Qpsmtpd::PollServer $self = shift;
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my ($code, @messages) = @_;
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while (my $msg = shift @messages) {
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my $line = $code . (@messages ? "-" : " ") . $msg;
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$self->write("$line\r\n");
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}
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return 1;
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}
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sub fault {
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my Qpsmtpd::PollServer $self = shift;
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$self->SUPER::fault(@_);
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return;
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}
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sub process_line {
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my Qpsmtpd::PollServer $self = shift;
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my $line = shift || return;
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if ($::DEBUG > 1) { print "$$:".($self+0)."C($self->{mode}): $line"; }
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eval { $self->_process_line($line) };
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if ($@) {
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print STDERR "Error: $@\n";
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return $self->fault("command failed unexpectedly") if $self->{mode} eq 'cmd';
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return $self->fault("error processing data lines") if $self->{mode} eq 'data';
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return $self->fault("unknown error");
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}
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return;
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}
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sub _process_line {
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my Qpsmtpd::PollServer $self = shift;
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my $line = shift;
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if ($self->{mode} eq 'connect') {
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$self->{mode} = 'cmd';
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my $rc = $self->start_conversation;
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return;
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}
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elsif ($self->{mode} eq 'cmd') {
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$line =~ s/\r?\n//;
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return $self->process_cmd($line);
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}
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elsif ($self->{mode} eq 'data') {
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return $self->data_line($line);
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}
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else {
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die "Unknown mode";
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}
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}
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sub process_cmd {
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my Qpsmtpd::PollServer $self = shift;
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my $line = shift;
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my ($cmd, @params) = split(/ +/, $line);
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my $meth = lc($cmd);
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if (my $lookup = $self->{_commands}->{$meth} && $self->can($meth)) {
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my $resp = eval {
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$lookup->($self, @params);
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};
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if ($@) {
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my $error = $@;
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chomp($error);
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$self->log(LOGERROR, "Command Error: $error");
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return $self->fault("command '$cmd' failed unexpectedly");
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}
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return $resp;
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}
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else {
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# No such method - i.e. unrecognized command
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my ($rc, $msg) = $self->run_hooks("unrecognized_command", $meth, @params);
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return 1;
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}
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}
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sub disconnect {
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my Qpsmtpd::PollServer $self = shift;
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$self->SUPER::disconnect(@_);
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$self->close;
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}
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sub start_conversation {
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my Qpsmtpd::PollServer $self = shift;
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my $conn = $self->connection;
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# set remote_host, remote_ip and remote_port
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my ($ip, $port) = split(':', $self->peer_addr_string);
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$conn->remote_ip($ip);
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$conn->remote_port($port);
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$conn->remote_info("[$ip]");
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ParaDNS->new(
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finished => sub { $self->run_hooks("connect") },
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# NB: Setting remote_info to the same as remote_host
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callback => sub { $conn->remote_info($conn->remote_host($_[0])) },
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host => $ip,
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);
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return;
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}
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sub data {
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my Qpsmtpd::PollServer $self = shift;
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my ($rc, $msg) = $self->run_hooks("data");
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return 1;
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}
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sub data_respond {
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my Qpsmtpd::PollServer $self = shift;
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my ($rc, $msg) = @_;
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if ($rc == DONE) {
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return;
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}
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elsif ($rc == DENY) {
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$self->respond(554, $msg || "Message denied");
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$self->reset_transaction();
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return;
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}
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elsif ($rc == DENYSOFT) {
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$self->respond(451, $msg || "Message denied temporarily");
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$self->reset_transaction();
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return;
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}
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elsif ($rc == DENY_DISCONNECT) {
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$self->respond(554, $msg || "Message denied");
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$self->disconnect;
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return;
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}
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elsif ($rc == DENYSOFT_DISCONNECT) {
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$self->respond(451, $msg || "Message denied temporarily");
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$self->disconnect;
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return;
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}
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return $self->respond(503, "MAIL first") unless $self->transaction->sender;
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return $self->respond(503, "RCPT first") unless $self->transaction->recipients;
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$self->{mode} = 'data';
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$self->{header_lines} = '';
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$self->{data_size} = 0;
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$self->{in_header} = 1;
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$self->{max_size} = ($self->config('databytes'))[0] || 0;
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$self->log(LOGDEBUG, "max_size: $self->{max_size} / size: $self->{data_size}");
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$self->respond(354, "go ahead");
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my $max_get = $self->{max_size} || 1048576;
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$self->get_chunks($max_get, sub { $self->got_data($_[0]) });
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return 1;
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}
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sub got_data {
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my Qpsmtpd::PollServer $self = shift;
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my $data = shift;
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my $done = 0;
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my $remainder;
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if ($data =~ s/^\.\r\n(.*)\z//m) {
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$remainder = $1;
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$done = 1;
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}
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# add a transaction->blocked check back here when we have line by line plugin access...
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unless (($self->{max_size} and $self->{data_size} > $self->{max_size})) {
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$data =~ s/\r\n/\n/mg;
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$data =~ s/^\.\./\./mg;
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if ($self->{in_header} and $data =~ s/\A(.*?)\n[ \t]*\n//ms) {
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$self->{header_lines} .= $1;
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# end of headers
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$self->{in_header} = 0;
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# ... need to check that we don't reformat any of the received lines.
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#
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# 3.8.2 Received Lines in Gatewaying
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# When forwarding a message into or out of the Internet environment, a
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# gateway MUST prepend a Received: line, but it MUST NOT alter in any
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# way a Received: line that is already in the header.
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my @header_lines = split(/\n/, $self->{header_lines});
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my $header = Mail::Header->new(\@header_lines,
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Modify => 0, MailFrom => "COERCE");
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$self->transaction->header($header);
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$self->{header_lines} = '';
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#$header->add("X-SMTPD", "qpsmtpd/".$self->version.", http://smtpd.develooper.com/");
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# FIXME - call plugins to work on just the header here; can
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# save us buffering the mail content.
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}
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if ($self->{in_header}) {
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$self->{header_lines} .= $data;
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}
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else {
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$self->transaction->body_write(\$data);
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}
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$self->{data_size} += length $data;
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}
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if ($done) {
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$self->{mode} = 'cmd';
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$self->end_of_data;
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$self->end_get_chunks($remainder);
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}
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}
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sub data_line {
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my Qpsmtpd::PollServer $self = shift;
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print "YIKES\n";
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my $line = shift;
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if ($line eq ".\r\n") {
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# add received etc.
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$self->{mode} = 'cmd';
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return $self->end_of_data;
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}
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# Reject messages that have either bare LF or CR. rjkaes noticed a
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# lot of spam that is malformed in the header.
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if ($line eq ".\n" or $line eq ".\r") {
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$self->respond(421, "See http://smtpd.develooper.com/barelf.html");
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$self->disconnect;
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return;
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}
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# add a transaction->blocked check back here when we have line by line plugin access...
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unless (($self->{max_size} and $self->{data_size} > $self->{max_size})) {
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$line =~ s/\r\n$/\n/;
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$line =~ s/^\.\./\./;
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if ($self->{in_header} and $line =~ m/^\s*$/) {
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# end of headers
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$self->{in_header} = 0;
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# ... need to check that we don't reformat any of the received lines.
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#
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# 3.8.2 Received Lines in Gatewaying
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# When forwarding a message into or out of the Internet environment, a
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# gateway MUST prepend a Received: line, but it MUST NOT alter in any
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# way a Received: line that is already in the header.
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my $header = Mail::Header->new($self->{header_lines},
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Modify => 0, MailFrom => "COERCE");
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$self->transaction->header($header);
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#$header->add("X-SMTPD", "qpsmtpd/".$self->version.", http://smtpd.develooper.com/");
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# FIXME - call plugins to work on just the header here; can
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# save us buffering the mail content.
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}
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if ($self->{in_header}) {
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push @{ $self->{header_lines} }, $line;
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}
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else {
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$self->transaction->body_write(\$line);
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}
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$self->{data_size} += length $line;
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}
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return;
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}
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sub end_of_data {
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my Qpsmtpd::PollServer $self = shift;
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#$self->log(LOGDEBUG, "size is at $size\n") unless ($i % 300);
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$self->log(LOGDEBUG, "max_size: $self->{max_size} / size: $self->{data_size}");
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my $smtp = $self->connection->hello eq "ehlo" ? "ESMTP" : "SMTP";
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my $header = $self->transaction->header;
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if (!$header) {
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$header = Mail::Header->new(Modify => 0, MailFrom => "COERCE");
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$self->transaction->header($header);
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}
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# only true if client authenticated
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if ( $self->authenticated == OK ) {
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$header->add("X-Qpsmtpd-Auth","True");
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}
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$header->add("Received", "from ".$self->connection->remote_info
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." (HELO ".$self->connection->hello_host . ") (".$self->connection->remote_ip
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. ")\n by ".$self->config('me')." (qpsmtpd/".$self->version
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.") with $smtp; ". (strftime('%a, %d %b %Y %H:%M:%S %z', localtime)),
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0);
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return $self->respond(552, "Message too big!") if $self->{max_size} and $self->{data_size} > $self->{max_size};
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my ($rc, $msg) = $self->run_hooks("data_post");
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return 1;
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}
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1;
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@ -53,21 +53,7 @@ sub dispatch {
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$self->{_counter}++;
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if ($cmd !~ /^(\w{1,12})$/ or !exists $self->{_commands}->{$1}) {
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my ($rc, @msg) = $self->run_hooks("unrecognized_command", $cmd, @_);
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@msg = map { split /\n/ } @msg;
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if ($rc == DENY_DISCONNECT) {
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$self->respond(521, @msg);
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$self->disconnect;
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}
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elsif ($rc == DENY) {
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$self->respond(500, @msg);
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}
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elsif ($rc == DONE) {
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1;
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}
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else {
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$self->respond(500, "Unrecognized command");
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}
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$self->run_hooks("unrecognized_command", $cmd, @_);
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return 1
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}
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$cmd = $1;
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@ -82,6 +68,20 @@ sub dispatch {
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return;
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}
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sub unrecognized_command_respond {
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my ($self, $rc, $msg) = @_;
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if ($rc == DENY_DISCONNECT) {
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$self->respond(521, @$msg);
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$self->disconnect;
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}
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elsif ($rc == DENY) {
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$self->respond(500, @$msg);
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}
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elsif ($rc != DONE) {
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$self->respond(500, "Unrecognized command");
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}
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}
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sub fault {
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my $self = shift;
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my ($msg) = shift || "program fault - command not performed";
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@ -94,19 +94,21 @@ sub start_conversation {
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my $self = shift;
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# this should maybe be called something else than "connect", see
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# lib/Qpsmtpd/TcpServer.pm for more confusion.
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my ($rc, @msg) = $self->run_hooks("connect");
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$self->run_hooks("connect");
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return DONE;
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}
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sub connect_respond {
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my ($self, $rc, $msg) = @_;
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if ($rc == DENY) {
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$msg[0] ||= 'Connection from you denied, bye bye.';
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$self->respond(550, @msg);
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return $rc;
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$msg->[0] ||= 'Connection from you denied, bye bye.';
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$self->respond(550, @$msg);
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$self->disconnect;
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}
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elsif ($rc == DENYSOFT) {
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$msg[0] ||= 'Connection from you temporarily denied, bye bye.';
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$self->respond(450, @msg);
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return $rc;
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}
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elsif ($rc == DONE) {
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return $rc;
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$msg->[0] ||= 'Connection from you temporarily denied, bye bye.';
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$self->respond(450, @$msg);
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||||
$self->disconnect;
|
||||
}
|
||||
elsif ($rc != DONE) {
|
||||
my $greets = $self->config('smtpgreeting');
|
||||
@ -121,7 +123,6 @@ sub start_conversation {
|
||||
}
|
||||
|
||||
$self->respond(220, $greets);
|
||||
return DONE;
|
||||
}
|
||||
}
|
||||
|
||||
@ -154,20 +155,26 @@ sub helo {
|
||||
my $conn = $self->connection;
|
||||
return $self->respond (503, "but you already said HELO ...") if $conn->hello;
|
||||
|
||||
($rc, @msg) = $self->run_hooks("helo", $hello_host, @stuff);
|
||||
$self->run_hooks("helo", $hello_host, @stuff);
|
||||
}
|
||||
|
||||
sub helo_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
my ($hello_host) = @$args;
|
||||
if ($rc == DONE) {
|
||||
# do nothing
|
||||
} elsif ($rc == DENY) {
|
||||
$self->respond(550, @msg);
|
||||
$self->respond(550, @$msg);
|
||||
} elsif ($rc == DENYSOFT) {
|
||||
$self->respond(450, @msg);
|
||||
$self->respond(450, @$msg);
|
||||
} elsif ($rc == DENY_DISCONNECT) {
|
||||
$self->respond(550, @msg);
|
||||
$self->respond(550, @$msg);
|
||||
$self->disconnect;
|
||||
} elsif ($rc == DENYSOFT_DISCONNECT) {
|
||||
$self->respond(450, @msg);
|
||||
$self->respond(450, @$msg);
|
||||
$self->disconnect;
|
||||
} else {
|
||||
my $conn = $self->connection;
|
||||
$conn->hello("helo");
|
||||
$conn->hello_host($hello_host);
|
||||
$self->transaction;
|
||||
@ -184,20 +191,26 @@ sub ehlo {
|
||||
my $conn = $self->connection;
|
||||
return $self->respond (503, "but you already said HELO ...") if $conn->hello;
|
||||
|
||||
($rc, @msg) = $self->run_hooks("ehlo", $hello_host, @stuff);
|
||||
$self->run_hooks("ehlo", $hello_host, @stuff);
|
||||
}
|
||||
|
||||
sub ehlo_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
my ($hello_host) = @$args;
|
||||
if ($rc == DONE) {
|
||||
# do nothing
|
||||
} elsif ($rc == DENY) {
|
||||
$self->respond(550, @msg);
|
||||
$self->respond(550, @$msg);
|
||||
} elsif ($rc == DENYSOFT) {
|
||||
$self->respond(450, @msg);
|
||||
$self->respond(450, @$msg);
|
||||
} elsif ($rc == DENY_DISCONNECT) {
|
||||
$self->respond(550, @msg);
|
||||
$self->respond(550, @$msg);
|
||||
$self->disconnect;
|
||||
} elsif ($rc == DENYSOFT_DISCONNECT) {
|
||||
$self->respond(450, @msg);
|
||||
$self->respond(450, @$msg);
|
||||
$self->disconnect;
|
||||
} else {
|
||||
my $conn = $self->connection;
|
||||
$conn->hello("ehlo");
|
||||
$conn->hello_host($hello_host);
|
||||
$self->transaction;
|
||||
@ -238,8 +251,14 @@ HOOK: foreach my $hook ( keys %{$self->{hooks}} ) {
|
||||
|
||||
sub auth {
|
||||
my ($self, $line) = @_;
|
||||
my ($rc, $sub) = $self->run_hooks('auth_parse');
|
||||
my ($ok, $mechanism, @stuff) = Qpsmtpd::Command->parse('auth', $line, $sub);
|
||||
$self->run_hooks('auth_parse', $line);
|
||||
}
|
||||
|
||||
sub auth_parse_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
my ($line) = @$args;
|
||||
|
||||
my ($ok, $mechanism, @stuff) = Qpsmtpd::Command->parse('auth', $line, $msg->[0]);
|
||||
return $self->respond(501, $mechanism || "Syntax error in command")
|
||||
unless ($ok == OK);
|
||||
|
||||
@ -293,8 +312,14 @@ sub mail {
|
||||
}
|
||||
else {
|
||||
$self->log(LOGINFO, "full from_parameter: $line");
|
||||
my ($rc, @msg) = $self->run_hooks("mail_parse");
|
||||
my ($ok, $from, @params) = Qpsmtpd::Command->parse('mail', $line, $msg[0]);
|
||||
$self->run_hooks("mail_parse", $line);
|
||||
}
|
||||
}
|
||||
|
||||
sub mail_parse_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
my ($line) = @$args;
|
||||
my ($ok, $from, @params) = Qpsmtpd::Command->parse('mail', $line, $msg->[0]);
|
||||
return $self->respond(501, $from || "Syntax error in command")
|
||||
unless ($ok == OK);
|
||||
my %param;
|
||||
@ -307,9 +332,14 @@ sub mail {
|
||||
# return (OK, "<$from>");
|
||||
# (...or anything else parseable by Qpsmtpd::Address ;-))
|
||||
# see also comment in sub rcpt()
|
||||
($rc, @msg) = $self->run_hooks("mail_pre", $from);
|
||||
$self->run_hooks("mail_pre", $from, \%param);
|
||||
}
|
||||
|
||||
sub mail_pre_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
my ($from, $param) = @$args;
|
||||
if ($rc == OK) {
|
||||
$from = shift @msg;
|
||||
$from = shift @$msg;
|
||||
}
|
||||
|
||||
$self->log(LOGALERT, "from email address : [$from]");
|
||||
@ -324,30 +354,35 @@ sub mail {
|
||||
}
|
||||
return $self->respond(501, "could not parse your mail from command") unless $from;
|
||||
|
||||
($rc, @msg) = $self->run_hooks("mail", $from, %param);
|
||||
$self->run_hooks("mail", $from, %$param);
|
||||
}
|
||||
|
||||
sub mail_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
my ($from, $param) = @$args;
|
||||
if ($rc == DONE) {
|
||||
return 1;
|
||||
}
|
||||
elsif ($rc == DENY) {
|
||||
$msg[0] ||= $from->format . ', denied';
|
||||
$self->log(LOGINFO, "deny mail from " . $from->format . " (@msg)");
|
||||
$self->respond(550, @msg);
|
||||
$msg->[0] ||= $from->format . ', denied';
|
||||
$self->log(LOGINFO, "deny mail from " . $from->format . " (@$msg)");
|
||||
$self->respond(550, @$msg);
|
||||
}
|
||||
elsif ($rc == DENYSOFT) {
|
||||
$msg[0] ||= $from->format . ', temporarily denied';
|
||||
$self->log(LOGINFO, "denysoft mail from " . $from->format . " (@msg)");
|
||||
$self->respond(450, @msg);
|
||||
$msg->[0] ||= $from->format . ', temporarily denied';
|
||||
$self->log(LOGINFO, "denysoft mail from " . $from->format . " (@$msg)");
|
||||
$self->respond(450, @$msg);
|
||||
}
|
||||
elsif ($rc == DENY_DISCONNECT) {
|
||||
$msg[0] ||= $from->format . ', denied';
|
||||
$self->log(LOGINFO, "deny mail from " . $from->format . " (@msg)");
|
||||
$self->respond(550, @msg);
|
||||
$msg->[0] ||= $from->format . ', denied';
|
||||
$self->log(LOGINFO, "deny mail from " . $from->format . " (@$msg)");
|
||||
$self->respond(550, @$msg);
|
||||
$self->disconnect;
|
||||
}
|
||||
elsif ($rc == DENYSOFT_DISCONNECT) {
|
||||
$msg[0] ||= $from->format . ', temporarily denied';
|
||||
$self->log(LOGINFO, "denysoft mail from " . $from->format . " (@msg)");
|
||||
$self->respond(421, @msg);
|
||||
$msg->[0] ||= $from->format . ', temporarily denied';
|
||||
$self->log(LOGINFO, "denysoft mail from " . $from->format . " (@$msg)");
|
||||
$self->respond(421, @$msg);
|
||||
$self->disconnect;
|
||||
}
|
||||
else { # includes OK
|
||||
@ -355,13 +390,17 @@ sub mail {
|
||||
$self->respond(250, $from->format . ", sender OK - how exciting to get mail from you!");
|
||||
$self->transaction->sender($from);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
sub rcpt {
|
||||
my ($self, $line) = @_;
|
||||
my ($rc, @msg) = $self->run_hooks("rcpt_parse");
|
||||
my ($ok, $rcpt, @param) = Qpsmtpd::Command->parse("rcpt", $line, $msg[0]);
|
||||
$self->run_hooks("rcpt_parse", $line);
|
||||
}
|
||||
|
||||
sub rcpt_parse_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
my ($line) = @$args;
|
||||
my ($ok, $rcpt, @param) = Qpsmtpd::Command->parse("rcpt", $line, $msg->[0]);
|
||||
return $self->respond(501, $rcpt || "Syntax error in command")
|
||||
unless ($ok == OK);
|
||||
return $self->respond(503, "Use MAIL before RCPT") unless $self->transaction->sender;
|
||||
@ -378,9 +417,14 @@ sub rcpt {
|
||||
# this means, a plugin can decide to (pre-)accept
|
||||
# addresses like <user@example.com.> or <user@example.com >
|
||||
# by removing the trailing "."/" " from this example...
|
||||
($rc, @msg) = $self->run_hooks("rcpt_pre", $rcpt);
|
||||
$self->run_hooks("rcpt_pre", $rcpt, \%param);
|
||||
}
|
||||
|
||||
sub rcpt_pre_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
my ($rcpt, $param) = @$args;
|
||||
if ($rc == OK) {
|
||||
$rcpt = shift @msg;
|
||||
$rcpt = shift @$msg;
|
||||
}
|
||||
$self->log(LOGALERT, "to email address : [$rcpt]");
|
||||
return $self->respond(501, "could not parse recipient")
|
||||
@ -391,28 +435,33 @@ sub rcpt {
|
||||
return $self->respond(501, "could not parse recipient")
|
||||
if (!$rcpt or ($rcpt->format eq '<>'));
|
||||
|
||||
($rc, @msg) = $self->run_hooks("rcpt", $rcpt, %param);
|
||||
$self->run_hooks("rcpt", $rcpt, %$param);
|
||||
}
|
||||
|
||||
sub rcpt_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
my ($rcpt, $param) = @$args;
|
||||
if ($rc == DONE) {
|
||||
return 1;
|
||||
}
|
||||
elsif ($rc == DENY) {
|
||||
$msg[0] ||= 'relaying denied';
|
||||
$self->respond(550, @msg);
|
||||
$msg->[0] ||= 'relaying denied';
|
||||
$self->respond(550, @$msg);
|
||||
}
|
||||
elsif ($rc == DENYSOFT) {
|
||||
$msg[0] ||= 'relaying denied';
|
||||
return $self->respond(450, @msg);
|
||||
$msg->[0] ||= 'relaying denied';
|
||||
return $self->respond(450, @$msg);
|
||||
}
|
||||
elsif ($rc == DENY_DISCONNECT) {
|
||||
$msg[0] ||= 'delivery denied';
|
||||
$self->log(LOGINFO, "delivery denied (@msg)");
|
||||
$self->respond(550, @msg);
|
||||
$msg->[0] ||= 'delivery denied';
|
||||
$self->log(LOGINFO, "delivery denied (@$msg)");
|
||||
$self->respond(550, @$msg);
|
||||
$self->disconnect;
|
||||
}
|
||||
elsif ($rc == DENYSOFT_DISCONNECT) {
|
||||
$msg[0] ||= 'relaying denied';
|
||||
$self->log(LOGINFO, "delivery denied (@msg)");
|
||||
$self->respond(421, @msg);
|
||||
$msg->[0] ||= 'relaying denied';
|
||||
$self->log(LOGINFO, "delivery denied (@$msg)");
|
||||
$self->respond(421, @$msg);
|
||||
$self->disconnect;
|
||||
}
|
||||
elsif ($rc == OK) {
|
||||
@ -425,8 +474,6 @@ sub rcpt {
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
|
||||
sub help {
|
||||
my $self = shift;
|
||||
$self->respond(214,
|
||||
@ -448,19 +495,23 @@ sub vrfy {
|
||||
# documented in RFC2821#3.5.1
|
||||
# I also don't think it provides all the proper result codes.
|
||||
|
||||
my ($rc, @msg) = $self->run_hooks("vrfy");
|
||||
$self->run_hooks("vrfy");
|
||||
}
|
||||
|
||||
sub vrfy_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
if ($rc == DONE) {
|
||||
return 1;
|
||||
}
|
||||
elsif ($rc == DENY) {
|
||||
$msg[0] ||= "Access Denied";
|
||||
$self->respond(554, @msg);
|
||||
$msg->[0] ||= "Access Denied";
|
||||
$self->respond(554, @$msg);
|
||||
$self->reset_transaction();
|
||||
return 1;
|
||||
}
|
||||
elsif ($rc == OK) {
|
||||
$msg[0] ||= "User OK";
|
||||
$self->respond(250, @msg);
|
||||
$msg->[0] ||= "User OK";
|
||||
$self->respond(250, @$msg);
|
||||
return 1;
|
||||
}
|
||||
else { # $rc == DECLINED or anything else
|
||||
@ -477,10 +528,14 @@ sub rset {
|
||||
|
||||
sub quit {
|
||||
my $self = shift;
|
||||
my ($rc, @msg) = $self->run_hooks("quit");
|
||||
$self->run_hooks("quit");
|
||||
}
|
||||
|
||||
sub quit_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
if ($rc != DONE) {
|
||||
$msg[0] ||= $self->config('me') . " closing connection. Have a wonderful day.";
|
||||
$self->respond(221, @msg);
|
||||
$msg->[0] ||= $self->config('me') . " closing connection. Have a wonderful day.";
|
||||
$self->respond(221, @$msg);
|
||||
}
|
||||
$self->disconnect();
|
||||
}
|
||||
@ -493,31 +548,35 @@ sub disconnect {
|
||||
|
||||
sub data {
|
||||
my $self = shift;
|
||||
my ($rc, @msg) = $self->run_hooks("data");
|
||||
$self->run_hooks("data");
|
||||
}
|
||||
|
||||
sub data_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
if ($rc == DONE) {
|
||||
return 1;
|
||||
}
|
||||
elsif ($rc == DENY) {
|
||||
$msg[0] ||= "Message denied";
|
||||
$self->respond(554, @msg);
|
||||
$msg->[0] ||= "Message denied";
|
||||
$self->respond(554, @$msg);
|
||||
$self->reset_transaction();
|
||||
return 1;
|
||||
}
|
||||
elsif ($rc == DENYSOFT) {
|
||||
$msg[0] ||= "Message denied temporarily";
|
||||
$self->respond(451, @msg);
|
||||
$msg->[0] ||= "Message denied temporarily";
|
||||
$self->respond(451, @$msg);
|
||||
$self->reset_transaction();
|
||||
return 1;
|
||||
}
|
||||
elsif ($rc == DENY_DISCONNECT) {
|
||||
$msg[0] ||= "Message denied";
|
||||
$self->respond(554, @msg);
|
||||
$msg->[0] ||= "Message denied";
|
||||
$self->respond(554, @$msg);
|
||||
$self->disconnect;
|
||||
return 1;
|
||||
}
|
||||
elsif ($rc == DENYSOFT_DISCONNECT) {
|
||||
$msg[0] ||= "Message denied temporarily";
|
||||
$self->respond(421, @msg);
|
||||
$msg->[0] ||= "Message denied temporarily";
|
||||
$self->respond(421, @$msg);
|
||||
$self->disconnect;
|
||||
return 1;
|
||||
}
|
||||
@ -624,17 +683,21 @@ sub data {
|
||||
return 1;
|
||||
}
|
||||
|
||||
($rc, @msg) = $self->run_hooks("data_post");
|
||||
$self->run_hooks("data_post");
|
||||
}
|
||||
|
||||
sub data_post_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
if ($rc == DONE) {
|
||||
return 1;
|
||||
}
|
||||
elsif ($rc == DENY) {
|
||||
$msg[0] ||= "Message denied";
|
||||
$self->respond(552, @msg);
|
||||
$msg->[0] ||= "Message denied";
|
||||
$self->respond(552, @$msg);
|
||||
}
|
||||
elsif ($rc == DENYSOFT) {
|
||||
$msg[0] ||= "Message denied temporarily";
|
||||
$self->respond(452, @msg);
|
||||
$msg->[0] ||= "Message denied temporarily";
|
||||
$self->respond(452, @$msg);
|
||||
}
|
||||
else {
|
||||
$self->queue($self->transaction);
|
||||
@ -658,7 +721,11 @@ sub queue {
|
||||
my ($self, $transaction) = @_;
|
||||
|
||||
# First fire any queue_pre hooks
|
||||
my ($rc, @msg) = $self->run_hooks("queue_pre");
|
||||
$self->run_hooks("queue_pre");
|
||||
}
|
||||
|
||||
sub queue_pre_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
if ($rc == DONE) {
|
||||
return 1;
|
||||
}
|
||||
@ -668,30 +735,38 @@ sub queue {
|
||||
}
|
||||
|
||||
# If we got this far, run the queue hooks
|
||||
($rc, @msg) = $self->run_hooks("queue");
|
||||
$self->run_hooks("queue");
|
||||
}
|
||||
|
||||
sub queue_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
if ($rc == DONE) {
|
||||
return 1;
|
||||
}
|
||||
elsif ($rc == OK) {
|
||||
$msg[0] ||= 'Queued';
|
||||
$self->respond(250, @msg);
|
||||
$msg->[0] ||= 'Queued';
|
||||
$self->respond(250, @$msg);
|
||||
}
|
||||
elsif ($rc == DENY) {
|
||||
$msg[0] ||= 'Message denied';
|
||||
$self->respond(552, @msg);
|
||||
$msg->[0] ||= 'Message denied';
|
||||
$self->respond(552, @$msg);
|
||||
}
|
||||
elsif ($rc == DENYSOFT) {
|
||||
$msg[0] ||= 'Message denied temporarily';
|
||||
$self->respond(452, @msg);
|
||||
$msg->[0] ||= 'Message denied temporarily';
|
||||
$self->respond(452, @$msg);
|
||||
}
|
||||
else {
|
||||
$msg[0] ||= 'Queuing declined or disabled; try again later';
|
||||
$self->respond(451, @msg);
|
||||
$msg->[0] ||= 'Queuing declined or disabled; try again later';
|
||||
$self->respond(451, @$msg);
|
||||
}
|
||||
|
||||
# And finally run any queue_post hooks
|
||||
($rc, @msg) = $self->run_hooks("queue_post");
|
||||
$self->log(LOGERROR, @msg) unless ($rc == OK or $rc == 0);
|
||||
$self->run_hooks("queue_post");
|
||||
}
|
||||
|
||||
sub queue_post_respond {
|
||||
my ($self, $rc, $msg, $args) = @_;
|
||||
$self->log(LOGERROR, @$msg) unless ($rc == OK or $rc == 0);
|
||||
}
|
||||
|
||||
|
||||
|
||||
311
qpsmtpd-async
Executable file
311
qpsmtpd-async
Executable file
@ -0,0 +1,311 @@
|
||||
#!/usr/bin/perl
|
||||
|
||||
use lib "./lib";
|
||||
BEGIN {
|
||||
delete $ENV{ENV};
|
||||
delete $ENV{BASH_ENV};
|
||||
$ENV{PATH} = '/bin:/usr/bin:/var/qmail/bin:/usr/local/bin';
|
||||
}
|
||||
|
||||
use strict;
|
||||
use vars qw($DEBUG);
|
||||
use FindBin qw();
|
||||
# TODO: need to make this taint friendly
|
||||
use lib "$FindBin::Bin/lib";
|
||||
use Danga::Socket;
|
||||
use Danga::Client;
|
||||
use Qpsmtpd::PollServer;
|
||||
use Qpsmtpd::ConfigServer;
|
||||
use Qpsmtpd::Constants;
|
||||
use IO::Socket;
|
||||
use Carp;
|
||||
use POSIX qw(WNOHANG);
|
||||
use Getopt::Long;
|
||||
|
||||
$|++;
|
||||
|
||||
use Socket qw(SOMAXCONN IPPROTO_TCP SO_KEEPALIVE TCP_NODELAY SOL_SOCKET);
|
||||
|
||||
$SIG{'PIPE'} = "IGNORE"; # handled manually
|
||||
|
||||
$DEBUG = 0;
|
||||
|
||||
my $CONFIG_PORT = 20025;
|
||||
my $CONFIG_LOCALADDR = '127.0.0.1';
|
||||
|
||||
my $PORT = 2525;
|
||||
my $LOCALADDR = '0.0.0.0';
|
||||
my $PROCS = 1;
|
||||
my $USER = 'smtpd'; # user to suid to
|
||||
my $PAUSED = 0;
|
||||
my $NUMACCEPT = 20;
|
||||
my $ACCEPT_RSET = Danga::Socket->AddTimer(30, \&reset_num_accept);
|
||||
|
||||
# make sure we don't spend forever doing accept()
|
||||
use constant ACCEPT_MAX => 1000;
|
||||
|
||||
sub reset_num_accept {
|
||||
$NUMACCEPT = 20;
|
||||
}
|
||||
|
||||
sub help {
|
||||
print <<EOT;
|
||||
Usage:
|
||||
qpsmtpd [OPTIONS]
|
||||
|
||||
Options:
|
||||
-l, --listen-address addr : listen on a specific address; default 0.0.0.0
|
||||
-p, --port P : listen on a specific port; default 2525
|
||||
-u, --user U : run as a particular user; defualt 'smtpd'
|
||||
-j, --procs J : spawn J processes; default 1
|
||||
-h, --help : this page
|
||||
--use-poll : force use of poll() instead of epoll()/kqueue()
|
||||
EOT
|
||||
exit(0);
|
||||
}
|
||||
|
||||
GetOptions(
|
||||
'p|port=i' => \$PORT,
|
||||
'l|listen-address=s' => \$LOCALADDR,
|
||||
'j|procs=i' => \$PROCS,
|
||||
'd|debug+' => \$DEBUG,
|
||||
'u|user=s' => \$USER,
|
||||
'h|help' => \&help,
|
||||
) || help();
|
||||
|
||||
# detaint the commandline
|
||||
if ($PORT =~ /^(\d+)$/) { $PORT = $1 } else { &help }
|
||||
if ($LOCALADDR =~ /^([\d\w\-.]+)$/) { $LOCALADDR = $1 } else { &help }
|
||||
if ($USER =~ /^([\w\-]+)$/) { $USER = $1 } else { &help }
|
||||
if ($PROCS =~ /^(\d+)$/) { $PROCS = $1 } else { &help }
|
||||
|
||||
sub force_poll {
|
||||
$Danga::Socket::HaveEpoll = 0;
|
||||
$Danga::Socket::HaveKQueue = 0;
|
||||
}
|
||||
|
||||
my $POLL = "with " . ($Danga::Socket::HaveEpoll ? "epoll()" :
|
||||
$Danga::Socket::HaveKQueue ? "kqueue()" : "poll()");
|
||||
|
||||
my $SERVER;
|
||||
my $CONFIG_SERVER;
|
||||
|
||||
my %childstatus = ();
|
||||
|
||||
run_as_server();
|
||||
exit(0);
|
||||
|
||||
sub _fork {
|
||||
my $pid = fork;
|
||||
if (!defined($pid)) { die "Cannot fork: $!" }
|
||||
return $pid if $pid;
|
||||
|
||||
# Fixup Net::DNS randomness after fork
|
||||
srand($$ ^ time);
|
||||
|
||||
local $^W;
|
||||
delete $INC{'Net/DNS/Header.pm'};
|
||||
require Net::DNS::Header;
|
||||
|
||||
# cope with different versions of Net::DNS
|
||||
eval {
|
||||
$Net::DNS::Resolver::global{id} = 1;
|
||||
$Net::DNS::Resolver::global{id} = int(rand(Net::DNS::Resolver::MAX_ID()));
|
||||
# print "Next DNS ID: $Net::DNS::Resolver::global{id}\n";
|
||||
};
|
||||
if ($@) {
|
||||
# print "Next DNS ID: " . Net::DNS::Header::nextid() . "\n";
|
||||
}
|
||||
|
||||
# Fixup lost kqueue after fork
|
||||
$Danga::Socket::HaveKQueue = undef;
|
||||
}
|
||||
|
||||
sub spawn_child {
|
||||
my $plugin_loader = shift || Qpsmtpd::SMTP->new;
|
||||
if (my $pid = _fork) {
|
||||
return $pid;
|
||||
}
|
||||
|
||||
$SIG{HUP} = $SIG{CHLD} = $SIG{INT} = $SIG{TERM} = 'DEFAULT';
|
||||
$SIG{PIPE} = 'IGNORE';
|
||||
|
||||
Qpsmtpd::PollServer->OtherFds(fileno($SERVER) => \&accept_handler);
|
||||
|
||||
$plugin_loader->run_hooks('post-fork');
|
||||
|
||||
Qpsmtpd::PollServer->EventLoop();
|
||||
exit;
|
||||
}
|
||||
|
||||
sub sig_chld {
|
||||
my $spawn_count = 0;
|
||||
while ( (my $child = waitpid(-1,WNOHANG)) > 0) {
|
||||
if (!defined $childstatus{$child}) {
|
||||
next;
|
||||
}
|
||||
|
||||
last unless $child > 0;
|
||||
print "SIGCHLD: child $child died\n";
|
||||
delete $childstatus{$child};
|
||||
$spawn_count++;
|
||||
}
|
||||
if ($spawn_count) {
|
||||
for (1..$spawn_count) {
|
||||
# restart a new child if in poll server mode
|
||||
my $pid = spawn_child();
|
||||
$childstatus{$pid} = 1;
|
||||
}
|
||||
}
|
||||
$SIG{CHLD} = \&sig_chld;
|
||||
}
|
||||
|
||||
sub HUNTSMAN {
|
||||
$SIG{CHLD} = 'DEFAULT';
|
||||
kill 'INT' => keys %childstatus;
|
||||
exit(0);
|
||||
}
|
||||
|
||||
sub run_as_server {
|
||||
# establish SERVER socket, bind and listen.
|
||||
$SERVER = IO::Socket::INET->new(LocalPort => $PORT,
|
||||
LocalAddr => $LOCALADDR,
|
||||
Type => SOCK_STREAM,
|
||||
Proto => IPPROTO_TCP,
|
||||
Blocking => 0,
|
||||
Reuse => 1,
|
||||
Listen => SOMAXCONN )
|
||||
or die "Error creating server $LOCALADDR:$PORT : $@\n";
|
||||
|
||||
IO::Handle::blocking($SERVER, 0);
|
||||
binmode($SERVER, ':raw');
|
||||
|
||||
$CONFIG_SERVER = IO::Socket::INET->new(LocalPort => $CONFIG_PORT,
|
||||
LocalAddr => $CONFIG_LOCALADDR,
|
||||
Type => SOCK_STREAM,
|
||||
Proto => IPPROTO_TCP,
|
||||
Blocking => 0,
|
||||
Reuse => 1,
|
||||
Listen => 1 )
|
||||
or die "Error creating server $CONFIG_LOCALADDR:$CONFIG_PORT : $@\n";
|
||||
|
||||
IO::Handle::blocking($CONFIG_SERVER, 0);
|
||||
binmode($CONFIG_SERVER, ':raw');
|
||||
|
||||
# Drop priviledges
|
||||
my (undef, undef, $quid, $qgid) = getpwnam $USER or
|
||||
die "unable to determine uid/gid for $USER\n";
|
||||
$) = "";
|
||||
POSIX::setgid($qgid) or
|
||||
die "unable to change gid: $!\n";
|
||||
POSIX::setuid($quid) or
|
||||
die "unable to change uid: $!\n";
|
||||
$> = $quid;
|
||||
|
||||
# Load plugins here
|
||||
my $plugin_loader = Qpsmtpd::SMTP->new();
|
||||
$plugin_loader->load_plugins;
|
||||
|
||||
$plugin_loader->log(LOGINFO, 'Running as user '.
|
||||
(getpwuid($>) || $>) .
|
||||
', group '.
|
||||
(getgrgid($)) || $)));
|
||||
|
||||
$SIG{INT} = $SIG{TERM} = \&HUNTSMAN;
|
||||
|
||||
if ($PROCS > 1) {
|
||||
for (1..$PROCS) {
|
||||
my $pid = spawn_child($plugin_loader);
|
||||
$childstatus{$pid} = 1;
|
||||
}
|
||||
$plugin_loader->log(LOGDEBUG, "Listening on $PORT with $PROCS children $POLL");
|
||||
$SIG{'CHLD'} = \&sig_chld;
|
||||
sleep while (1);
|
||||
}
|
||||
else {
|
||||
$plugin_loader->log(LOGDEBUG, "Listening on $PORT with single process $POLL");
|
||||
Qpsmtpd::PollServer->OtherFds(fileno($SERVER) => \&accept_handler,
|
||||
fileno($CONFIG_SERVER) => \&config_handler,
|
||||
);
|
||||
$plugin_loader->run_hooks('post-fork');
|
||||
while (1) {
|
||||
Qpsmtpd::PollServer->EventLoop();
|
||||
}
|
||||
exit;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
sub config_handler {
|
||||
my $csock = $CONFIG_SERVER->accept();
|
||||
if (!$csock) {
|
||||
# warn("accept failed on config server: $!");
|
||||
return;
|
||||
}
|
||||
binmode($csock, ':raw');
|
||||
|
||||
printf("Config server connection\n") if $DEBUG;
|
||||
|
||||
IO::Handle::blocking($csock, 0);
|
||||
setsockopt($csock, IPPROTO_TCP, TCP_NODELAY, pack("l", 1)) or die;
|
||||
|
||||
my $client = Qpsmtpd::ConfigServer->new($csock);
|
||||
$client->watch_read(1);
|
||||
return;
|
||||
}
|
||||
|
||||
# Accept all new connections
|
||||
sub accept_handler {
|
||||
for (1 .. $NUMACCEPT) {
|
||||
return unless _accept_handler();
|
||||
}
|
||||
|
||||
# got here because we have accept's left.
|
||||
# So double the number we accept next time.
|
||||
$NUMACCEPT *= 2;
|
||||
$NUMACCEPT = ACCEPT_MAX if $NUMACCEPT > ACCEPT_MAX;
|
||||
$ACCEPT_RSET->cancel;
|
||||
$ACCEPT_RSET = Danga::Socket->AddTimer(30, \&reset_num_accept);
|
||||
}
|
||||
|
||||
use Errno qw(EAGAIN EWOULDBLOCK);
|
||||
|
||||
sub _accept_handler {
|
||||
my $csock = $SERVER->accept();
|
||||
if (!$csock) {
|
||||
# warn("accept() failed: $!");
|
||||
return;
|
||||
}
|
||||
binmode($csock, ':raw');
|
||||
|
||||
printf("Listen child making a Qpsmtpd::PollServer for %d.\n", fileno($csock))
|
||||
if $DEBUG;
|
||||
|
||||
IO::Handle::blocking($csock, 0);
|
||||
#setsockopt($csock, IPPROTO_TCP, TCP_NODELAY, pack("l", 1)) or die;
|
||||
|
||||
my $client = Qpsmtpd::PollServer->new($csock);
|
||||
|
||||
if ($PAUSED) {
|
||||
$client->write("451 Sorry, this server is currently paused\r\n");
|
||||
$client->close;
|
||||
return 1;
|
||||
}
|
||||
|
||||
$client->push_back_read("Connect\n");
|
||||
$client->watch_read(1);
|
||||
return 1;
|
||||
}
|
||||
|
||||
########################################################################
|
||||
|
||||
sub log {
|
||||
my ($level,$message) = @_;
|
||||
# $level not used yet. this is reimplemented from elsewhere anyway
|
||||
warn("$$ fd:? $message\n");
|
||||
}
|
||||
|
||||
sub pause {
|
||||
my ($pause) = @_;
|
||||
$PAUSED = $pause;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user