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git-svn-id: https://svn.perl.org/qpsmtpd/trunk@920 958fd67b-6ff1-0310-b445-bb7760255be9
This commit is contained in:
Radu Greab 2008-06-02 15:41:30 +00:00 committed by Ask Bjørn Hansen
parent d63102cd7e
commit 7f07f16a44
1 changed files with 67 additions and 55 deletions
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122
plugins/async/dnsbl
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@ -3,55 +3,65 @@
use ParaDNS;
sub init {
my ($self, $qp, $denial ) = @_;
if ( defined $denial and $denial =~ /^disconnect$/i ) {
$self->{_dnsbl}->{DENY} = DENY_DISCONNECT;
}
else {
$self->{_dnsbl}->{DENY} = DENY;
}
my ($self, $qp, $denial) = @_;
if (defined $denial and $denial =~ /^disconnect$/i) {
$self->{_dnsbl}->{DENY} = DENY_DISCONNECT;
}
else {
$self->{_dnsbl}->{DENY} = DENY;
}
}
sub hook_connect {
my ($self, $transaction) = @_;
my ($self, $transaction) = @_;
my $remote_ip = $self->connection->remote_ip;
my $remote_ip = $self->connection->remote_ip;
my $allow = grep { s/\.?$/./; $_ eq substr($remote_ip . '.', 0, length $_) } $self->qp->config('dnsbl_allow');
return DECLINED if $allow;
my $allow =
grep { s/\.?$/./; $_ eq substr($remote_ip . '.', 0, length $_) }
$self->qp->config('dnsbl_allow');
return DECLINED if $allow;
my %dnsbl_zones = map { (split /:/, $_, 2)[0,1] } $self->qp->config('dnsbl_zones');
return DECLINED unless %dnsbl_zones;
my %dnsbl_zones =
map { (split /:/, $_, 2)[0, 1] } $self->qp->config('dnsbl_zones');
return DECLINED unless %dnsbl_zones;
my $reversed_ip = join(".", reverse(split(/\./, $remote_ip)));
my $reversed_ip = join(".", reverse(split(/\./, $remote_ip)));
my $total_zones = keys %dnsbl_zones;
my $qp = $self->qp;
for my $dnsbl (keys %dnsbl_zones) {
# fix to find A records, if the dnsbl_zones line has a second field 20/1/04 ++msp
if (defined($dnsbl_zones{$dnsbl})) {
$self->log(LOGDEBUG, "Checking $reversed_ip.$dnsbl for A record in the background");
ParaDNS->new(
callback => sub { process_a_result($qp, $dnsbl_zones{$dnsbl}, @_) },
finished => sub { $total_zones--; finished($qp, $total_zones) },
host => "$reversed_ip.$dnsbl",
type => 'A',
client => $self->qp->input_sock,
);
} else {
$self->log(LOGDEBUG, "Checking $reversed_ip.$dnsbl for TXT record in the background");
ParaDNS->new(
callback => sub { process_txt_result($qp, @_) },
finished => sub { $total_zones--; finished($qp, $total_zones) },
host => "$reversed_ip.$dnsbl",
type => 'TXT',
client => $self->qp->input_sock,
);
my $total_zones = keys %dnsbl_zones;
my $qp = $self->qp;
for my $dnsbl (keys %dnsbl_zones) {
# fix to find A records, if the dnsbl_zones line has a second field 20/1/04 ++msp
if (defined($dnsbl_zones{$dnsbl})) {
$self->log(LOGDEBUG,
"Checking $reversed_ip.$dnsbl for A record in the background");
ParaDNS->new(
callback => sub {
process_a_result($qp, $dnsbl_zones{$dnsbl}, @_);
},
finished => sub { $total_zones--; finished($qp, $total_zones) },
host => "$reversed_ip.$dnsbl",
type => 'A',
client => $self->qp->input_sock,
);
}
else {
$self->log(LOGDEBUG,
"Checking $reversed_ip.$dnsbl for TXT record in the background"
);
ParaDNS->new(
callback => sub { process_txt_result($qp, @_) },
finished => sub { $total_zones--; finished($qp, $total_zones) },
host => "$reversed_ip.$dnsbl",
type => 'TXT',
client => $self->qp->input_sock,
);
}
}
}
return YIELD;
return YIELD;
}
sub finished {
@ -62,47 +72,49 @@ sub finished {
sub process_a_result {
my ($qp, $template, $result, $query) = @_;
$qp->log(LOGINFO, "Result for A $query: $result");
if ($result !~ /^\d+\.\d+\.\d+\.\d+$/) {
# NXDOMAIN or ERROR possibly...
return;
}
my $conn = $qp->connection;
my $ip = $conn->remote_ip;
my $ip = $conn->remote_ip;
$template =~ s/%IP%/$ip/g;
$conn->notes('dnsbl', $template) unless $conn->notes('dnsbl');
}
sub process_txt_result {
my ($qp, $result, $query) = @_;
$qp->log(LOGINFO, "Result for TXT $query: $result");
if ($result !~ /[a-z]/) {
# NXDOMAIN or ERROR probably...
return;
}
my $conn = $qp->connection;
$conn->notes('dnsbl', $result) unless $conn->notes('dnsbl');
}
sub hook_rcpt {
my ($self, $transaction, $rcpt) = @_;
my $connection = $self->qp->connection;
my ($self, $transaction, $rcpt) = @_;
my $connection = $self->qp->connection;
# RBLSMTPD being non-empty means it contains the failure message to return
if (defined ($ENV{'RBLSMTPD'}) && $ENV{'RBLSMTPD'} ne '') {
my $result = $ENV{'RBLSMTPD'};
my $remote_ip = $self->connection->remote_ip;
$result =~ s/%IP%/$remote_ip/g;
return (DENY, join(" ", $self->qp->config('dnsbl_rejectmsg'), $result));
}
# RBLSMTPD being non-empty means it contains the failure message to return
if (defined($ENV{'RBLSMTPD'}) && $ENV{'RBLSMTPD'} ne '') {
my $result = $ENV{'RBLSMTPD'};
my $remote_ip = $self->connection->remote_ip;
$result =~ s/%IP%/$remote_ip/g;
return (DENY, join(" ", $self->qp->config('dnsbl_rejectmsg'), $result));
}
my $note = $self->connection->notes('dnsbl');
return (DENY, $note) if $note;
return DECLINED;
my $note = $self->connection->notes('dnsbl');
return (DENY, $note) if $note;
return DECLINED;
}
1;