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|
#!/usr/bin/perl -w
# -*-CPerl-*-
# Script to configure Postfix.
# Based on code by Colin Walters <walters@cis.ohio-state.edu>,
# and John Goerzen <jgoerzen@progenylinux.com>.
use strict;
use warnings;
use Debconf::Client::ConfModule qw(:all);
use Fcntl;
my $version = version(2.0);
capb("backup");
title("Postfix Configuration");
# begin configuration script
my $topstate;
my $back;
my $noninteractive;
my $skiprelayhost;
# Regexps for checking domain names, blatantly stolen from exim config
my $rfc1035_label_re= '[0-9A-Za-z]([-0-9A-Za-z]*[0-9A-Za-z])?';
my $rfc1035_domain_re= "$rfc1035_label_re(\\.$rfc1035_label_re)*";
my $network_re= '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/[0-9]{1,2}';
$topstate = "start";
my $distribution = lc(`lsb_release -is 2>/dev/null`);
$distribution = 'debian' if $distribution eq '';
while ($topstate ne "done") {
TOPSTATE: {
if ($topstate eq "start") {
if (fget("postfix/main_mailer_type", "isdefault") eq "true") {
if (-f "/etc/postfix/main.cf") {
set("postfix/main_mailer_type", "No configuration");
}
}
my $pri = "high";
$pri = "medium" if ($ARGV[1] ne "" && $distribution eq "ubuntu");
$noninteractive = (((input($pri, "postfix/main_mailer_type"))[0]) == 30);
if ($noninteractive) {
my $mailertype = get("postfix/main_mailer_type");
if ($mailertype eq "No configuration") {
# We can't display a note here, because it could send mail,
# which isn't configured...
#$noninteractive = ((input("critical", "postfix/not_configured"))[0] == 30);
#go();
fset("postfix/newaliases", "run", "false");
$topstate="ending-setup";
} else {
$topstate="mailname";
}
} else {
go();
$back = (((go())[0]) == 30);
my $mailertype = get("postfix/main_mailer_type");
if ($mailertype eq "No configuration") {
$topstate="ending-setup";
} else {
fset("postfix/main_mailer_type", "changed", "true");
fset("postfix/newaliases", "run", "true");
if ($back) {
fset("postfix/main_mailer_type", "isdefault", "true");
} else {
fset("postfix/main_mailer_type", "changed", "true");
$topstate = "mailname";
if (!(($mailertype eq "Internet with smarthost") ||
($mailertype eq "Satellite system") ||
($mailertype eq "HP"))) {
set("postfix/relayhost", "");
fset("postfix/relayhost", "changed", "true");
}
}
}
}
}
if ($topstate eq "mailname") {
my $mailname;
if (-f "/etc/mailname") {
if (open my $fh, '<', "/etc/mailname") {
$mailname = <$fh>;
close $fh;
chomp $mailname;
}
}
if (!defined($mailname) || $mailname eq "") {
$mailname = `hostname --fqdn 2>/dev/null` || "localdomain";
chomp $mailname;
}
# broken mailname, change it to the default, and prompt.
if (lc($mailname) eq "ubuntu.com" || lc($mailname) eq "debian.org") {
fset("postfix/mailname", "isdefault", "true");
$mailname = `hostname --fqdn 2>/dev/null` || "localdomain";
chomp $mailname;
}
if (fget("postfix/mailname", "isdefault") eq "true") {
set("postfix/mailname", $mailname);
}
$noninteractive = (((input("high", "postfix/mailname"))[0]) == 30);
if ($noninteractive) {
$topstate = "relayhost";
} else {
$back = (((go())[0]) == 30);
if ($back) {
fset("postfix/main_mailer_type", "isdefault", "true");
fset("postfix/mailname", "isdefault", "true");
$topstate = "start";
} else {
# error checking
my $mailname = lc(get("postfix/mailname"));
fset("postfix/mailname", "changed", "true");
if ($mailname eq "ubuntu.com" || $mailname eq "debian.org") {
fset("postfix/mailname", "isdefault", "true");
} elsif ($mailname =~ /$rfc1035_domain_re/ || $mailname eq "==default==") {
# their mailname passed error checking, go on
$topstate = "relayhost";
} else {
set("postfix/rfc1035_violation", "false");
fset("postfix/rfc1035_violation", "isdefault", "true");
subst("postfix/rfc1035_violation", "enteredstring", $mailname);
$noninteractive = (((input("high", "postfix/rfc1035_violation"))[0]) == 30);
$back = (((go())[0]) == 30);
if ($back) {
fset("postfix/mailname", "isdefault", "true");
# and back around to ask mailname again.
}
if (get("postfix/rfc1035_violation") eq "true") {
# they wanted to continue despite the error
$topstate = "relayhost";
} else {
fset("postfix/mailname", "isdefault", "true");
# and back around to ask mailname again.
}
}
}
}
}
if ($topstate eq "relayhost") {
my $mailertype = get("postfix/main_mailer_type");
if (($mailertype eq "Internet with smarthost") || ($mailertype eq "Satellite system")) {
if (fget("postfix/relayhost", "isdefault") eq "true") {
my $hostname = `hostname --domain 2>/dev/null` || "localdomain";
chomp $hostname;
my $relayname = "smtp." . $hostname;
set("postfix/relayhost", $relayname);
}
$noninteractive = (((input("high", "postfix/relayhost"))[0]) == 30);
$skiprelayhost=0;
} else {
# skip relayhost if we're an "Internet site" or a "Local only"
$topstate = "root";
$noninteractive=1;
$skiprelayhost=1;
}
if ($noninteractive) {
$topstate = "root";
} else {
$back = (((go())[0]) == 30);
if ($back) {
fset("postfix/mailname", "isdefault", "true");
fset("postfix/relayhost", "isdefault", "true");
$topstate = "mailname"; # we skip back to the last question of equal or higher priority
} else {
my $host = get("postfix/relayhost");
if ($host =~ /[\s,]/) {
fset("postfix/relayhost", "isdefault", "true");
} else {
fset("postfix/relayhost", "changed", "true");
$topstate = "root";
}
}
}
}
if ($topstate eq "root") {
if (fget("postfix/root_address", "isdefault") eq "true") {
my @l = ();
if (open my $fh, '-|', "getent passwd 1000") {
@l=<$fh>;
close $fh;
}
if ($#l > 0) {
$l[0] =~ s/:.*$//;
set("postfix/root_address",$l[0]);
fset("postfix/root_address", "changed", "true");
}
}
$noninteractive = (((input("medium", "postfix/root_address"))[0]) == 30);
if ($noninteractive) {
$topstate="destinations";
} else {
$back = (((go())[0]) == 30);
if ($back) {
fset("postfix/relayhost", "isdefault", "true");
fset("postfix/root_address", "isdefault", "true");
if ($skiprelayhost) {
fset("postfix/mailname", "isdefault", "true");
$topstate = "mailname";
} else {
$topstate = "relayhost";
}
} else {
fset("postfix/root_address", "changed", "true");
$topstate="destinations";
}
}
}
if ($topstate eq "destinations") {
my $mailertype = get("postfix/main_mailer_type");
my $hostname = `hostname --fqdn 2>/dev/null` || "localhost";
chomp $hostname;
my $domain = `hostname --domain 2>/dev/null` || "localdomain";
chomp $domain;
my $mailname = get("postfix/mailname") || "localhost";
my $destinations;
my $priority="medium";
if (fget("postfix/destinations", "set") eq "true") {
if ((-x "/usr/sbin/postconf") && (-f "/etc/postfix/main.cf")) {
if (open my $fh, '-|', "postconf -hx mydestination") {
$destinations=<$fh>;
close $fh;
chomp $destinations;
set("postfix/destinations", $destinations);
}
}
} else {
if ($mailertype eq "Internet Site") {
if ($mailname eq $hostname) {
$destinations = join ", ",("\$myhostname", $mailname, "localhost." . $domain, ", localhost");
} else {
$destinations = join ", ",("\$myhostname", $mailname, $hostname, "localhost." . $domain . ", localhost");
}
} else {
# don't accept mail for $mailname by default if we have a relayhost or local only mail,
# unless the mailname bears no resemblance to $myorigin.
$destinations = join ", ",("\$myhostname", $hostname, "localhost." . $domain . ", localhost" );
unless ( $hostname =~ m/(^|[\.])$mailname$/ ) {
$destinations = $mailname . ", " . $destinations;
}
}
set("postfix/destinations", $destinations);
fset("postfix/destinations","set","true");
}
if ($mailertype eq "Local only") {
$priority="low";
}
$noninteractive = (((input($priority, "postfix/destinations"))[0]) == 30);
if ($noninteractive) {
$topstate = "mynetworks";
} else {
$back = (((go())[0]) == 30);
if ($back) {
fset("postfix/relayhost", "isdefault", "true");
fset("postfix/destinations", "isdefault", "true");
$topstate = "relayhost";
} else {
fset("postfix/destinations", "changed", "true");
$topstate = "mynetworks";
}
}
}
if ($topstate eq "mynetworks") {
if ((-x "/usr/sbin/postconf") && (-f "/etc/postfix/main.cf")) {
my $mynetworks;
if (open my $fh, '-|', "postconf -hx mynetworks") {
$mynetworks=<$fh>;
close $fh;
chomp $mynetworks;
set("postfix/mynetworks", $mynetworks);
}
}
$noninteractive = (((input("low", "postfix/mynetworks"))[0]) == 30);
if ($noninteractive) {
$topstate = "procmail";
} else {
$back = (((go())[0]) == 30);
if ($back) {
fset("postfix/destinations", "isdefault", "true");
fset("postfix/mynetworks", "isdefault", "true");
$topstate = "destinations";
} else {
fset("postfix/mynetworks", "changed", "true");
$topstate = "procmail";
}
}
}
if ($topstate eq "procmail") {
if (fget("postfix/procmail", "isdefault") eq "true") {
my $pmdefault="false";
if (-x "/usr/bin/procmail") {
$pmdefault="true";
}
set("postfix/procmail", $pmdefault);
}
if (-x "/usr/bin/procmail") {
$noninteractive = (((input("low", "postfix/procmail"))[0]) == 30);
} else {
$noninteractive = 1;
}
if ($noninteractive) {
$topstate = "mailbox_limit";
} else {
$back = (((go())[0]) == 30);
if ($back) {
fset("postfix/mynetworks", "isdefault", "true");
fset("postfix/procmail", "isdefault", "true");
$topstate = "mynetworks";
} else {
fset("postfix/procmail", "changed", "true");
$topstate = "mailbox_limit";
}
}
}
if ($topstate eq "mailbox_limit") {
$noninteractive = (((input("low", "postfix/mailbox_limit"))[0]) == 30);
if ($noninteractive) {
$topstate = "recipient_delim";
} else {
$back = (((go())[0]) == 30);
if ($back) {
fset("postfix/procmail", "isdefault", "true");
fset("postfix/mailbox_limit", "isdefault", "true");
if (-x "/usr/bin/procmail") {
$topstate = "procmail";
} else {
fset("postfix/mynetworks", "isdefault", "true");
$topstate = "mynetworks";
}
} else {
fset("postfix/mailbox_limit", "changed", "true");
$topstate = "recipient_delim";
}
}
}
if ($topstate eq "recipient_delim") {
$noninteractive = (((input("low", "postfix/recipient_delim"))[0]) == 30);
if ($noninteractive) {
$topstate = "protocols";
} else {
$back = (((go())[0]) == 30);
if ($back) {
fset("postfix/mailbox_limit", "isdefault", "true");
fset("postfix/recipient_delim", "isdefault", "true");
$topstate = "mailbox_limit";
} else {
my $delim = get("postfix/recipient_delim");
if (length($delim) > 1) {
fset("postfix/bad_recipient_delimiter","isdefault","true");
subst("postfix/bad_recipient_delimiter", "enteredstring", $delim);
$noninteractive = (((input("low", "postfix/bad_recipient_delimiter"))[0]) == 30);
fset("postfix/recipient_delim","isdefault","true");
# and do it again...
} else {
fset("postfix/recipient_delim", "changed", "true");
$topstate = "protocols";
}
}
}
}
if ($topstate eq "protocols") {
if ((-x "/usr/sbin/postconf") && (-f "/etc/postfix/main.cf")) {
my $protos;
if (open my $fh, '-|', "postconf -hx inet_protocols") {
$protos=<$fh>;
close $fh;
chomp $protos;
set("postfix/protocols", $protos);
}
} elsif (fget("postfix/protocols", "isdefault") eq "true") {
my $protos;
if (-d "/proc/sys/net/ipv6" && -d "/proc/sys/net/ipv4") {
$protos="all";
} elsif (-d "/proc/sys/net/ipv6") {
$protos="ipv6";
} elsif (-d "/proc/sys/net/ipv4") {
$protos="ipv4";
}
set("postfix/protocols", $protos) if $protos;
}
$noninteractive = (((input("low", "postfix/protocols"))[0]) == 30);
if ($noninteractive) {
$topstate = "ending-setup";
} else {
$back = (((go())[0]) == 30);
if ($back) {
fset("postfix/recipient_delim", "isdefault", "true");
fset("postfix/protocols", "isdefault", "true");
$topstate = "recipient_delim";
} else {
fset("postfix/protocols", "changed", "true");
$topstate = "ending-setup";
}
}
}
if ($topstate eq "ending-setup") {
if ($ARGV[0] eq "reconfigure") {
# touch /var/lib/postfix/reload
if (sysopen my $fh, "/var/spool/postfix/reload", O_CREAT) {
close $fh;
}
} else {
# touch /var/lib/postfix/restart
if (sysopen my $fh, "/var/spool/postfix/restart", O_CREAT) {
close $fh;
}
}
$topstate = "done";
}
} # end TOPSTATE
} # end while ($topstate ne q(done))
|
