Merge pull request #156 from msimerson/smtp
moved SMTP changes into new PR
This commit is contained in:
Jared Johnson
commit
a308e53aa7
@ -1,9 +1,8 @@
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package Qpsmtpd::SMTP;
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use strict;
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use base 'Qpsmtpd';
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use Carp;
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#use lib 'lib';
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use parent 'Qpsmtpd';
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#use Data::Dumper;
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use POSIX qw(strftime);
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@ -18,6 +17,9 @@ use Qpsmtpd::Auth;
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use Qpsmtpd::Command;
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my %auth_mechanisms = ();
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my %loaded = (
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auth_mechanisms => 0,
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);
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# this is only good for forkserver
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# can't set these here, cause forkserver resets them
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@ -154,173 +156,163 @@ sub helo {
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my ($ok, $hello_host, @stuff) =
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Qpsmtpd::Command->parse('helo', $line, $msg[0]);
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return $self->respond(501,
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"helo requires domain/address - see RFC-2821 4.1.1.1")
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unless $hello_host;
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my $conn = $self->connection;
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return $self->respond(503, "but you already said HELO ...") if $conn->hello;
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return $self->helo_no_host('helo') if !$hello_host;
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return $self->helo_repeat_host() if $self->connection->hello;
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$self->run_hooks("helo", $hello_host, @stuff);
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$self->run_hooks('helo', $hello_host, @stuff);
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}
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sub helo_no_host {
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my ($self, $cmd) = @_;
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return $self->respond(501, "$cmd requires domain/address - see RFC-2821 4.1.1.1");
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}
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sub helo_repeat_host {
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my ($self) = @_;
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return $self->respond(503, 'but you already said HELO ...');
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}
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sub helo_hi_msg {
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my $self = shift;
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return $self->config('me') . ' Hi '
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. $self->connection->remote_info . ' ['
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. $self->connection->remote_ip
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. ']';
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}
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sub is_deny_response {
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my ($self, $rc, $msg) = @_;
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$self->respond(550, @$msg) if $rc == DENY || $rc == DENY_DISCONNECT;
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$self->respond(450, @$msg) if $rc == DENYSOFT || $rc == DENYSOFT_DISCONNECT;
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if ($rc == DENY || $rc == DENYSOFT) {
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return 1;
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}
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if ($rc == DENY_DISCONNECT || $rc == DENYSOFT_DISCONNECT) {
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$self->disconnect;
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return 1;
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}
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return;
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}
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sub helo_respond {
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my ($self, $rc, $msg, $args) = @_;
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my ($hello_host) = @$args;
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if ($rc == DONE) {
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return if $rc == DONE; # do nothing
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$self->is_deny_response($rc, $msg) and return;
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# do nothing:
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1;
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}
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elsif ($rc == DENY) {
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$self->respond(550, @$msg);
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}
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elsif ($rc == DENYSOFT) {
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$self->respond(450, @$msg);
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}
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elsif ($rc == DENY_DISCONNECT) {
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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_DISCONNECT) {
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$self->respond(450, @$msg);
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$self->disconnect;
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}
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else {
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my $conn = $self->connection;
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$conn->hello("helo");
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$conn->hello_host($hello_host);
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$conn->hello('helo');
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$conn->hello_host($args->[0]); # store helo hostname
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$self->transaction;
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$self->respond(
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250,
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$self->config('me') . " Hi "
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. $conn->remote_info . " ["
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. $conn->remote_ip
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. "]; I am so happy to meet you."
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);
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}
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$self->respond( 250, $self->helo_hi_msg . '; I am so happy to meet you.');
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}
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sub ehlo {
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my ($self, $line) = @_;
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my ($rc, @msg) = $self->run_hooks('ehlo_parse');
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my ($rc, @msg ) = $self->run_hooks('ehlo_parse');
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my ($ok, $hello_host, @stuff) =
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Qpsmtpd::Command->parse('ehlo', $line, $msg[0]);
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return $self->respond(501,
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"ehlo requires domain/address - see RFC-2821 4.1.1.1")
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unless $hello_host;
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my $conn = $self->connection;
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return $self->respond(503, "but you already said HELO ...") if $conn->hello;
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$self->run_hooks("ehlo", $hello_host, @stuff);
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return $self->helo_no_host('ehlo') if !$hello_host;
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return $self->helo_repeat_host() if $self->connection->hello;
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$self->run_hooks('ehlo', $hello_host, @stuff);
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}
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sub ehlo_respond {
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my ($self, $rc, $msg, $args) = @_;
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my ($hello_host) = @$args;
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if ($rc == DONE) {
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# do nothing:
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1;
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}
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elsif ($rc == DENY) {
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$self->respond(550, @$msg);
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}
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elsif ($rc == DENYSOFT) {
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$self->respond(450, @$msg);
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}
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elsif ($rc == DENY_DISCONNECT) {
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$self->respond(550, @$msg);
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$self->disconnect;
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}
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elsif ($rc == DENYSOFT_DISCONNECT) {
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$self->respond(450, @$msg);
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$self->disconnect;
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}
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else {
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return if $rc == DONE;
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$self->is_deny_response($rc, $msg) and return;
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my $conn = $self->connection;
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$conn->hello("ehlo");
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$conn->hello_host($hello_host);
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$conn->hello('ehlo');
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$conn->hello_host($args->[0]); # store helo hostname
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$self->transaction;
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my @capabilities =
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$self->transaction->notes('capabilities')
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? @{$self->transaction->notes('capabilities')}
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: ();
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my @capabilities = ();
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if ($self->transaction->notes('capabilities')) {
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@capabilities = @{$self->transaction->notes('capabilities')};
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}
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# Check for possible AUTH mechanisms
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HOOK: foreach my $hook (keys %{$self->hooks}) {
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if ($hook =~ m/^auth-?(.+)?$/) {
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if (defined $1) {
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$auth_mechanisms{uc($1)} = 1;
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}
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else { # at least one polymorphous auth provider
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%auth_mechanisms = map { $_, 1 } qw(PLAIN CRAM-MD5 LOGIN);
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last HOOK;
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}
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}
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if (!$loaded{auth_mechanisms}) {
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$self->auth_load_mechanisms();
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}
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# Check if we should only offer AUTH after TLS is completed
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my $tls_before_auth = (
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$self->config('tls_before_auth')
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? ($self->config('tls_before_auth'))[0]
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&& $self->transaction->notes('tls_enabled')
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: 0
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);
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if (%auth_mechanisms && !$tls_before_auth) {
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push @capabilities, 'AUTH ' . join(" ", keys(%auth_mechanisms));
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$self->{_commands}->{'auth'} = "";
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my $offer_auth = 1;
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if ($self->transaction->notes('tls_enabled') && ($self->config('tls_before_auth'))[0]) {
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$offer_auth = 0;
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}
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$self->respond(
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250,
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$self->config("me") . " Hi "
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. $conn->remote_info . " ["
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. $conn->remote_ip . "]",
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"PIPELINING",
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"8BITMIME",
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(
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$self->config('databytes')
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? "SIZE " . ($self->config('databytes'))[0]
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: ()
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),
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if (%auth_mechanisms && $offer_auth) {
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push @capabilities, 'AUTH ' . join(' ', keys(%auth_mechanisms));
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$self->{_commands}{auth} = '';
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}
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$self->respond( 250, $self->helo_hi_msg,
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'PIPELINING',
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'8BITMIME',
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$self->ehlo_size(),
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@capabilities,
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);
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}
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}
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sub ehlo_size {
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my $self = shift;
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return '' if ! $self->config('databytes');
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return 'SIZE ' . ($self->config('databytes'))[0];
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};
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sub auth {
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my ($self, $line) = @_;
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$self->run_hooks('auth_parse', $line);
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}
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sub auth_load_mechanisms {
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my $self = shift;
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foreach my $hook (keys %{$self->hooks}) {
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next if $hook !~ m/^auth-?(.+)?$/;
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if (defined $1) {
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$auth_mechanisms{uc($1)} = 1;
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next;
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}
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# at least one polymorphous auth provider
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%auth_mechanisms = map { $_, 1 } qw(PLAIN CRAM-MD5 LOGIN);
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last;
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}
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$loaded{auth_mechanisms} = 1;
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}
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sub auth_parse_respond {
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my ($self, $rc, $msg, $args) = @_;
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my ($line) = @$args;
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my ($ok, $mechanism, @stuff) =
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Qpsmtpd::Command->parse('auth', $line, $msg->[0]);
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return $self->respond(501, $mechanism || "Syntax error in command")
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unless ($ok == OK);
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$mechanism = lc($mechanism);
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return $self->respond(501, $mechanism || "Syntax error in command")
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if $ok != OK;
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$mechanism = lc $mechanism;
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#they AUTH'd once already
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return $self->respond(503, "but you already said AUTH ...")
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if (defined $self->{_auth} && $self->{_auth} == OK);
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return $self->respond(503, "AUTH not defined for HELO")
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if ($self->connection->hello eq "helo");
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if $self->connection->hello eq 'helo';
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return $self->respond(503, "SSL/TLS required before AUTH")
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if (($self->config('tls_before_auth'))[0]
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&& $self->transaction->notes('tls_enabled'));
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# we don't have a plugin implementing this auth mechanism, 504
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if (exists $auth_mechanisms{uc($mechanism)}) {
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return $self->{_auth} = Qpsmtpd::Auth::SASL($self, $mechanism, @stuff);
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}
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# no plugin implementing this auth mechanism
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$self->respond(504, "Unimplemented authentication mechanism: $mechanism");
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return DENY;
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}
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@ -479,7 +471,7 @@ sub rcpt_pre_respond {
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}
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$self->log(LOGDEBUG, "to email address : [$rcpt]");
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return $self->respond(501, "could not parse recipient")
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unless $rcpt =~ /^<.*>$/;
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if $rcpt !~ /^<.*>$/;
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$rcpt = $self->address($rcpt);
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@ -643,52 +635,50 @@ sub data {
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sub data_respond {
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my ($self, $rc, $msg, $args) = @_;
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if ($rc == DONE) {
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return 1;
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}
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elsif ($rc == DENY) {
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return 1 if $rc == DONE; # do nothing
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if ($rc == DENY || $rc == DENY_DISCONNECT) {
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$msg->[0] ||= "Message denied";
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$self->respond(554, @$msg);
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$self->reset_transaction;
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return 1;
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}
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elsif ($rc == DENYSOFT) {
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if ($rc == DENYSOFT || $rc == DENYSOFT_DISCONNECT) {
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$msg->[0] ||= "Message denied temporarily";
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$self->respond(451, @$msg);
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}
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if ($rc == DENY || $rc == DENYSOFT) {
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$self->reset_transaction;
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return 1;
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}
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elsif ($rc == DENY_DISCONNECT) {
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$msg->[0] ||= "Message denied";
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$self->respond(554, @$msg);
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if ($rc == DENY_DISCONNECT || $rc == DENYSOFT_DISCONNECT) {
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$self->disconnect;
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return 1;
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}
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elsif ($rc == DENYSOFT_DISCONNECT) {
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$msg->[0] ||= "Message denied temporarily";
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$self->respond(421, @$msg);
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$self->disconnect;
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if (!$self->transaction->sender) {
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$self->respond(503, 'MAIL first');
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return 1;
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}
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$self->respond(503, "MAIL first"), return 1
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unless $self->transaction->sender;
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$self->respond(503, "RCPT first"), return 1
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unless $self->transaction->recipients;
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$self->respond(354, "go ahead");
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};
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if (! $self->transaction->recipients) {
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$self->respond(503, 'RCPT first');
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return 1;
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};
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$self->respond(354, 'go ahead');
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my $buffer = '';
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my $size = 0;
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my $i = 0;
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my $max_size =
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($self->config('databytes'))[0] || 0; # this should work in scalar context
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my $blocked = "";
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my $max_size = ($self->config('databytes'))[0] || 0;
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my $blocked = '';
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my %matches;
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my $in_header = 1;
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my $complete = 0;
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$self->log(LOGDEBUG, "max_size: $max_size / size: $size");
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my $header = Mail::Header->new(Modify => 0, MailFrom => "COERCE");
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my $header = Mail::Header->new(Modify => 0, MailFrom => 'COERCE');
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my $timeout = $self->config('timeout');
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while (defined($_ = $self->getline($timeout))) {
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@ -698,16 +688,15 @@ sub data_respond {
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}
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$i++;
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# should probably use \012 and \015 in these checks instead of \r and \n ...
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# Reject messages that have either bare LF or CR. rjkaes noticed a
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# lot of spam that is malformed in the header.
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($_ eq ".\n" or $_ eq ".\r")
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and $self->respond(421, "See http://smtpd.develooper.com/barelf.html")
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and return $self->disconnect;
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if ($_ eq ".\n" || $_ eq ".\r") {
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$self->respond(421, 'See http://smtpd.develooper.com/barelf.html');
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$self->disconnect;
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return 1;
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}
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# add a transaction->blocked check back here when we have line by line plugin access...
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unless (($max_size and $size > $max_size)) {
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s/\r\n$/\n/;
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s/^\.\./\./;
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@ -715,7 +704,7 @@ sub data_respond {
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$in_header = 0;
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my @headers = split /^/m, $buffer;
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# ... need to check that we don't reformat any of the received lines.
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# ... don't reformat any of the received lines.
|
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#
|
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# 3.8.2 Received Lines in Gatewaying
|
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# When forwarding a message into or out of the Internet environment, a
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@ -724,27 +713,26 @@ sub data_respond {
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$header->extract(\@headers);
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#$header->add("X-SMTPD", "qpsmtpd/".$self->version.", http://smtpd.develooper.com/");
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#$header->add("X-SMTPD", "qpsmtpd/".$self->version.", http://smtpd.github.io/qpsmtpd/");
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$buffer = "";
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$buffer = '';
|
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$self->transaction->header($header);
|
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my ($rc, $msg) = $self->run_hooks('data_headers_end');
|
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if ($rc == DENY_DISCONNECT) {
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$self->respond(554, $msg || "Message denied");
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$self->respond(554, $msg || 'Message denied');
|
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$self->disconnect;
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return 1;
|
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}
|
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elsif ($rc == DENYSOFT_DISCONNECT) {
|
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$self->respond(421, $msg || "Message denied temporarily");
|
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$self->respond(421, $msg || 'Message denied temporarily');
|
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$self->disconnect;
|
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return 1;
|
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}
|
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# Save the start of just the body itself
|
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$self->transaction->set_body_start();
|
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|
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}
|
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|
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# grab a copy of all of the header lines
|
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@ -764,27 +752,25 @@ sub data_respond {
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$self->log(LOGDEBUG, "max_size: $max_size / size: $size");
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|
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# if we get here without seeing a terminator, the connection is
|
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# probably dead.
|
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unless ($complete) {
|
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$self->respond(451, "Incomplete DATA");
|
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$self->reset_transaction; # clean up after ourselves
|
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# if we get here without seeing a terminator, the connection is dead.
|
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if (!$complete) {
|
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$self->respond(451, 'Incomplete DATA');
|
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$self->reset_transaction;
|
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return 1;
|
||||
}
|
||||
|
||||
#$self->respond(550, $self->transaction->blocked),return 1 if ($self->transaction->blocked);
|
||||
if ($max_size and $size > $max_size) {
|
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if ($max_size && $size > $max_size) {
|
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$self->log(LOGALERT,
|
||||
"Message too big: size: $size (max size: $max_size)");
|
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$self->respond(552, "Message too big!");
|
||||
$self->reset_transaction; # clean up after ourselves
|
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$self->respond(552, 'Message too big!');
|
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$self->reset_transaction;
|
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return 1;
|
||||
}
|
||||
|
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$self->run_hooks("data_post_headers");
|
||||
$self->authentication_results();
|
||||
$self->received_line();
|
||||
$self->run_hooks("data_post");
|
||||
$self->run_hooks('data_post');
|
||||
}
|
||||
|
||||
sub authentication_results {
|
||||
@ -792,7 +778,7 @@ sub authentication_results {
|
||||
|
||||
my @auth_list = $self->config('me');
|
||||
|
||||
# $self->clean_authentication_results();
|
||||
#$self->clean_authentication_results();
|
||||
|
||||
if (!defined $self->{_auth}) {
|
||||
push @auth_list, 'auth=none';
|
||||
|
||||
129
t/qpsmtpd-smtp.t
129
t/qpsmtpd-smtp.t
@ -8,15 +8,22 @@ use Test::Output;
|
||||
|
||||
use lib 't';
|
||||
use lib 'lib'; # test lib/Qpsmtpd/SMTP (vs site_perl)
|
||||
use Qpsmtpd::Constants;
|
||||
|
||||
use_ok('Test::Qpsmtpd');
|
||||
use_ok('Qpsmtpd::SMTP');
|
||||
|
||||
|
||||
ok(my $smtp = Qpsmtpd::SMTP->new(), "new smtp");
|
||||
ok(my ($smtpd, $conn) = Test::Qpsmtpd->new_conn(), "get new connection");
|
||||
|
||||
__new();
|
||||
__fault();
|
||||
__helo_no_host();
|
||||
__helo_repeat_host();
|
||||
__helo_respond('helo_respond');
|
||||
__helo_respond('ehlo_respond');
|
||||
__data_respond('data_respond');
|
||||
|
||||
done_testing();
|
||||
|
||||
@ -43,3 +50,125 @@ sub __fault {
|
||||
is($fault->[1], 'Internal error - try again later - test message',
|
||||
'returns the input message');
|
||||
}
|
||||
|
||||
sub __helo_no_host {
|
||||
is_deeply(
|
||||
$smtpd->helo_no_host('helo'),
|
||||
[501,'helo requires domain/address - see RFC-2821 4.1.1.1'],
|
||||
'return helo'
|
||||
);
|
||||
is_deeply(
|
||||
$smtpd->helo_no_host('ehlo'),
|
||||
[501,'ehlo requires domain/address - see RFC-2821 4.1.1.1'],
|
||||
'return ehlo'
|
||||
);
|
||||
}
|
||||
|
||||
sub __helo_repeat_host {
|
||||
is_deeply(
|
||||
$smtpd->helo_repeat_host(),
|
||||
[503,'but you already said HELO ...'], 'repeated helo verb'
|
||||
);
|
||||
}
|
||||
|
||||
sub __helo_respond {
|
||||
my $func = shift or die 'missing function name';
|
||||
$smtpd->{_response} = undef; # reset connection
|
||||
$smtpd->$func(DONE, ["Good hair day"], ['helo.example.com']);
|
||||
is_deeply(
|
||||
$smtpd->{_response},
|
||||
undef,
|
||||
"$func DONE",
|
||||
);
|
||||
|
||||
$smtpd->$func(DENY, ["Very bad hair day"], ['helo.example.com']);
|
||||
is_deeply(
|
||||
$smtpd->{_response},
|
||||
[550, 'Very bad hair day'],
|
||||
"$func DENY",
|
||||
);
|
||||
|
||||
$smtpd->$func(DENYSOFT, ["Bad hair day"], ['helo.example.com']),
|
||||
is_deeply(
|
||||
$smtpd->{_response},
|
||||
[450, 'Bad hair day'],
|
||||
"$func DENYSOFT",
|
||||
);
|
||||
|
||||
$smtpd->$func(DENYSOFT_DISCONNECT, ["Bad hair day"], ['helo.example.com']),
|
||||
is_deeply(
|
||||
$smtpd->{_response},
|
||||
[450, 'Bad hair day'],
|
||||
"$func DENYSOFT_DISCONNECT",
|
||||
);
|
||||
|
||||
$smtpd->$func(DENY_DISCONNECT, ["Very bad hair day"], ['helo.example.com']),
|
||||
is_deeply(
|
||||
$smtpd->{_response},
|
||||
[550, 'Very bad hair day'],
|
||||
"$func DENY_DISCONNECT",
|
||||
);
|
||||
|
||||
$smtpd->$func(OK, ["You have hair?"], ['helo.example.com']);
|
||||
ok($smtpd->{_response}[0] == 250, "$func, OK");
|
||||
ok($smtpd->{_response}[1] =~ / Hi /, "$func, OK");
|
||||
|
||||
#warn Data::Dumper::Dumper($smtpd->{_response});
|
||||
}
|
||||
|
||||
sub __data_respond {
|
||||
is( $smtpd->data_respond(DONE), 1, 'data_respond, DONE' );
|
||||
is( $smtpd->data_respond(DENY), 1, 'data_respond, DENY' );
|
||||
is( $smtpd->data_respond(DENYSOFT), 1, 'data_respond, DENYSOFT' );
|
||||
is( $smtpd->data_respond(DENY_DISCONNECT), 1, 'data_respond, DENY_DISCONNECT' );
|
||||
is( $smtpd->data_respond(DECLINED), 1, 'data_respond, DECLINED' );
|
||||
|
||||
# the tests above all return 1 early due to DATA checks. Once the
|
||||
# transaction is populated, only checks that fail early will return.
|
||||
($smtpd) = _new_transaction();
|
||||
is( $smtpd->data_respond(DONE), 1, 'data_respond, DONE' );
|
||||
|
||||
($smtpd) = _new_transaction();
|
||||
is( $smtpd->data_respond(DENY), 1, 'data_respond, DENY' );
|
||||
|
||||
($smtpd) = _new_transaction();
|
||||
is( $smtpd->data_respond(DENYSOFT), 1, 'data_respond, DENYSOFT' );
|
||||
|
||||
($smtpd) = _new_transaction();
|
||||
is( $smtpd->data_respond(DENY_DISCONNECT), 1, 'data_respond, DENY_DISCONNECT' );
|
||||
|
||||
# data_respond also runs the data_post hooks, so this will require a bit
|
||||
# more work to get under test...
|
||||
#($smtpd) = _new_transaction();
|
||||
#is( $smtpd->data_respond(DECLINED, _test_message()), 1, 'data_respond, DECLINED' );
|
||||
}
|
||||
|
||||
sub _new_transaction () {
|
||||
my ($smtpd, $conn) = Test::Qpsmtpd->new_conn();
|
||||
$smtpd->transaction->sender(Qpsmtpd::Address->new('sender@example.com'));
|
||||
$smtpd->transaction->add_recipient(Qpsmtpd::Address->new('recip@example.com'));
|
||||
return $smtpd;
|
||||
};
|
||||
|
||||
sub _test_message {
|
||||
# with \r\n (aka CRLF) endings, as a proper SMTP formatted email would
|
||||
return <<"EOM"
|
||||
From: Jennifer <jennifer\@example.com>\r
|
||||
Subject: Persian New Year's Soup with Beans, Noodles, and Herbs Recipe at Epicurious.com\r
|
||||
Date: Sun, 02 Oct 2011 14:06:06 -0700\r
|
||||
Message-id: <67CC87B2-095C-45C6-BF9B-5A589AD6C264\@example.com>\r
|
||||
To: Matt <matt\@example.net>\r
|
||||
\r
|
||||
\r
|
||||
--Boundary_(ID_lBFzGVLdxsIk2GYiWhQRRQ)\r
|
||||
Content-type: text/plain; CHARSET=US-ASCII\r
|
||||
Content-transfer-encoding: 7BIT\r
|
||||
\r
|
||||
This sounds good. Can we do have it this week?\r
|
||||
\r
|
||||
http://www.epicurious.com/recipes/food/views/Persian-New-Years-Soup-with-Beans-Noodles-and-Herbs-em-Ash-e-reshteh-em-363446\r
|
||||
\r
|
||||
.\r
|
||||
EOM
|
||||
;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user