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minimalist.pl
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minimalist.pl
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#!/usr/bin/perl -Tw
#
# Minimalist - Minimalistic Mailing List Manager.
# Copyright (c) 1999-2005 Vladimir Litovka <[email protected]>
# Copyright (c) 2012 Christopher Zimmermann <[email protected]>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
# THE POSSIBILITY OF SUCH DAMAGE.
use v5.10;
no if $] >= 5.018, warnings => "experimental::smartmatch";
use strict;
use integer;
use Fcntl ':flock'; # LOCK_* constants
use Carp;
use Net::Config qw(%NetConfig);
use Net::SMTP;
require File::Spec;
require Digest::MD5;
require MIME::QuotedPrint;
require MIME::Base64;
require Sys::Hostname;
require POSIX;
$ENV{SMTPHOST} = '127.0.0.1';
delete @ENV{qw(IFS CDPATH ENV BASH_ENV)};
$ENV{'PATH'} = '/bin:/usr/bin';
my $version = '3.1';
my $config = "/etc/minimalist.conf";
#####################################################
# Prototypes
#
sub send_message ($$$;$);
sub verify ($$);
sub logCommand ($$);
sub subscribe ($$;$);
sub unsubscribe ($$;$);
sub chgSettings ($$$$;@);
sub genAdminReport ($$$);
sub archive ($$$);
sub arch_pipe ($$);
sub read_config ($$);
sub load_config ($);
sub load_language ();
sub read_info ($$);
sub genAuth ($$$$;@);
sub getAuth ($);
# Lists' status bits
my $OPEN = 0;
my $RO = 1;
my $CLOSED = 2;
my $MANDATORY = 4;
#####################################################
# Various regular expressions
#
# for matching rounding spaces
my $spaces = '^\s*(.*?)\s*$';
# for parsing two forms of mailing addresses:
#
# 1st form: Vladimir Litovka <[email protected]>
# 2nd form: [email protected] (Vladimir Litovka)
my $addr = qr/[[:graph:]]+@[[:graph:]]+/;
my $first = qr/((.*?)\s*<($addr)>)(.*)/; # $2 - gecos, $3 - address, $4 - rest
my $second = qr/(($addr)\s*\((.*?)\))(.*)/; # $2 - address, $3 - gecos, $4 - rest
#####################################################
# Default values
#
my $domain = Sys::Hostname::hostname();
my %global_conf = (
domain => $domain,
admin => "postmaster\@$domain",
adminpwd => undef,
listpwd => undef,
archive => 'no',
archpgm => 'BUILTIN',
arcsize => 0,
auth_scheme => 'password',
auth_valid => 24,
background => 'no',
blocked_robots => 'CurrentlyWeAreBlockingNoRobot-Do__NOT__leaveThisBlank', # -VTV-
cc_on_subscribe => 'no', # -VTV-
charset => 'us-ascii',
copy_sender => 'yes',
delay => 0,
directory => '/var/db/minimalist',
errors_to => 'drop',
translationpath => 'translations',
language => 'en',
list_gecos => '',
listdir => 'lists',
listinfo => 'yes',
logfile => undef,
logmessages => 'no',
maxrcpts => 20,
maxsize => 0, # Maximum allowed size for message (incl. headers)
maxusers => 0,
me => "minimalist\@$domain",
mesender => "minimalist\@$domain", # For substitute in X-Sender header
modify_msgid => 'no',
modify_subject => 'yes',
outgoing_from => '',
remove_resent => 'no',
reply_to_list => 'no',
security => 'careful',
sendmail => undef,
status => $OPEN,
strip_rrq => 'no',
to_recipient => 'no',
xtrahdr => ''
);
undef $domain;
#####################################################
# Other global variables
#
my $smtp;
END { $smtp->quit() if(defined $smtp) }
my $password = 0;
my $maketext;
my %msgtxt;
# HASH of known lists - key is lowercase listname, value list directory.
my %lists;
my @blacklist;
my @trusted;
########################################################
# >>>>>>>>>>>>>>>>>>> CONFIGURING <<<<<<<<<<<<<<<<<<<< #
########################################################
srand; # Seed random number generator while /dev/urandom is accessible
my %conf = read_config($config, 'global');
@global_conf{keys %conf} = values %conf;
%conf = %global_conf;
if (defined $conf{logfile}) {
open LOG, '>>', "$conf{logfile}" or warn "Can't open $conf{logfile}: $!" }
else {
open LOG, '>', File::Spec->devnull or warn "Can't open null device: $!" }
unless(-t STDERR) {
open STDOUT, ">&LOG" or warn "Can't redirect STDOUT: $!";
open STDERR, ">&LOG" or warn "Can't redirect STDERR: $!";
select LOG;
}
load_language();
push @{$NetConfig{smtp_hosts}}, 'localhost' unless($#{$NetConfig{smtp_hosts}} >= 0);
unless (defined $smtp || defined $conf{sendmail}) {
$smtp = Net::SMTP->new()
or warn "SMTP connect failed. SMTP connection specified in local chrooted config?";
$conf{sendmail} = undef;
}
#########################################################
# >>>>>>>>>>>>>>>>>>>>>>> MAKETEXT <<<<<<<<<<<<<<<<<<<< #
#########################################################
chdir $conf{directory} or die "Cannot chdir to $conf{directory}.";
# Convenience wrapper
sub mt (@) { $maketext->maketext(@_) }
$maketext = Translation::en->new() || die "Language?";
################################################################
# >>>>>>>>>>>>>>> CHROOT AND DROP PRIVILEGES <<<<<<<<<<<<<<<<< #
################################################################
-d $conf{directory} or die "$conf{directory} is not a directory.";
# $< and $( are real [ug]id, $> and $) are effective [ug]id
if ($> == 0 && $< != 0) {
my $uid;
my $gid = getgrnam('nogroup');
defined $gid or $gid = getgrnam('nobody');
defined $gid or die "Could not get gid of nogroup.";
if (defined $conf{user}) {
$uid = getpwnam($conf{user});
defined $uid or die "Could not get uid of $conf{user}.";
}
else { $uid = $< }
# drop group privileges
$) = "$gid $gid";
die "Error while dropping group privileges: $!" unless($) eq "$gid $gid");
POSIX::setgid($gid) or die "setgid failed: $!";;
# chroot
chroot $conf{directory} or die "Could not chroot to $conf{directory}: $!";
chdir '/' or die "Cannot chdir to / in chroot ($conf{directory}).";
$conf{directory} = '/';
# drop user privileges
POSIX::setuid($uid) or die "setuid failed: $!";
# This may be too paranoid, but check
# that privileges are really dropped permanently
POSIX::setuid(0);
POSIX::setgid(0);
my $groups = qr/^$gid( $gid)?$/;
if ($< == 0 || $> == 0 || $( !~ $groups || $) !~ $groups) {
die "Could not drop privileges permanently." }
}
@INC = ('.');
####################################################################
# >>>>>>>>>>>>>>>>>>>>>> PREPARE HASH OF LISTS <<<<<<<<<<<<<<<<<<< #
####################################################################
opendir(LISTDIR, $conf{listdir}) || die "Cannot open $conf{listdir}!";
while ($_ = readdir LISTDIR) {
warn "$_ list is found twice - maybe in differing case?" if (exists $lists{lc $_});
$lists{lc $1} = $1 if(/^([^\.].*)$/ && -d "$conf{listdir}/$_");
}
closedir LISTDIR;
####################################################################
# >>>>>>>>>>>>>>>>>>>>>>>> CHECK CONFIGURATION <<<<<<<<<<<<<<<<<<< #
####################################################################
if (defined $ARGV[0] && $ARGV[0] eq '-') {
my $msg;
my %lconf = %conf;
print "\nMinimalist v$version, pleased to meet you.\n".
"Using \"$config\" as main configuration file\n\n";
print "================= Global configuration ================\n".
"Directory: $lconf{directory}\n".
"User: $lconf{user}\n".
"Administrative password: ".(defined $lconf{adminpwd} ? "ok\n" : "not defined\n").
"Logging: $lconf{logfile}\n".
"Language: $lconf{language}\n".
"Log info about messages: $lconf{logmessages}\n".
"Background execution: $lconf{background}\n".
"Authentication request valid at least $lconf{auth_valid} hours\n".
"Blocked robots:";
if ($lconf{blocked_robots} !~ /__NOT__/) {
foreach (split(/\|/, $lconf{blocked_robots})) {
print "\n\t$_"; }
}
else { print " no one"; }
if ( @blacklist ) {
print "\nGlobal access list is:\n";
foreach (@blacklist) {
if ( $_ =~ s/^!(.*)//g ) { print "\t - ".$1." allowed\n" }
else { print "\t - ".$_." disallowed\n" }
};
};
print "\n\n";
while ( $ARGV[0] ) {
@trusted = ();
if ($ARGV[0] ne '-') {
$ARGV[0] =~ /^([[:graph:]]+)$/;
my $list = $1;
if (exists $lists{lc $list}) {
$list = $lists{lc $list};
}
else {
print " * There isn't such list \U$list\E\n\n";
shift; next;
}
my %nconf = read_config("$conf{listdir}/$list/config", 'list');
%lconf = %conf;
@lconf{keys %nconf} = values %nconf;
undef %nconf;
print "================= \U$list\E ================\n";
print "Administrators: ";
if ( @trusted ) {
print "\n";
foreach (@trusted) { print "\t . ".$_."\n"; }
}
else { print "not defined\n"; }
print "Administrative password: ".(! $conf{listpwd} ? "empty" :
$conf{listpwd} =~ /^_.*_$/ ? "not defined" : "Ok")."\n";
}
print
"Domain: $lconf{domain}\n".
"Security: $lconf{security}\n".
"Archiving: $lconf{archive}\n".
($lconf{archive} ne 'no' ? " * Archiver: $lconf{archpgm}\n" . ($lconf{arcsize} != 0 ? " * Maximum message size: $lconf{arcsize} bytes\n" : "") : "")
.
"Status:";
if ($lconf{status}) {
print " read-only" if ($lconf{status} & $RO);
print " closed" if ($lconf{status} & $CLOSED);
print " mandatory" if ($lconf{status} & $MANDATORY);
}
else { print " open"; }
print "\nCopy to sender: $lconf{copy_sender}\n".
"Reply-To list: $lconf{reply_to_list}\n".
"List GECOS: ".($lconf{list_gecos} ? $lconf{list_gecos} : "empty")."\n".
"Subject tag: ".($lconf{subject_tag} ? $lconf{subject_tag} : "empty")."\n".
"Substitute From: ".($lconf{outgoing_from} ? $lconf{outgoing_from} : "none")."\n".
"Admin: $lconf{admin}\n".
"Errors from MTA: ".($lconf{errors_to} eq 'drop' ? "drop" :
($lconf{errors_to} eq 'verp' ? "generate VERP" : "return to $lconf{errors_to}"))."\n".
"Modify subject: $lconf{modify_subject}\n".
"Modify Message-ID: $lconf{modify_msgid}\n".
"Notify on subscribe/unsubscribe event: $lconf{cc_on_subscribe}\n".
"Maximal users per list: ".($lconf{maxusers} ? $lconf{maxusers} : "unlimited")."\n".
"Maximal recipients per message: ".($lconf{maxrcpts} ? $lconf{maxrcpts} : "unlimited")."\n".
"Delay between deliveries: ".($lconf{delay} ? $lconf{delay} : "none")."\n".
"Maximal size of message: ".($lconf{maxsize} ? "$lconf{maxsize} bytes" : "unlimited")."\n".
"Strip 'Return Receipt' requests: $lconf{strip_rrq}\n".
"List information: ".($lconf{listinfo} eq 'no' ? "no" : "yes".
($lconf{listinfo} ne 'yes' ? ", archive at: $lconf{listinfo}" : ""))."\n".
"Charset: $lconf{charset}\n".
"Language: $lconf{language}\n".
"Fill To: with recipient's address: $lconf{to_recipient}\n".
"Extra Header(s):".($lconf{xtrahdr} ? "\n\n$lconf{xtrahdr}" : " none")."\n\n";
# Various checks
$msg .= " * $lconf{directory} doesn't exist!\n" if (! -d $lconf{directory});
$msg .= " * Invalid 'log messages' value '$lconf{logmessages}'\n" if ($lconf{logmessages} !~ /^yes$|^no$/i);
$msg .= " * Invalid 'background' value '$lconf{background}'\n" if ($lconf{background} !~ /^yes$|^no$/i);
$msg .= " * Invalid security level '$lconf{security}'\n" if ($lconf{security} !~ /^none$|^careful$|^paranoid$/i);
$msg .= " * Invalid 'copy to sender' value '$lconf{copy_sender}'\n" if ($lconf{copy_sender} !~ /^yes$|^no$/i);
$msg .= " * Invalid 'modify subject' value '$lconf{modify_subject}'\n" if ($lconf{modify_subject} !~ /^yes$|^no$|^more$/i);
$msg .= " * Invalid 'modify message-id' value '$lconf{modify_msgid}'\n" if ($lconf{modify_msgid} !~ /^yes$|^no$/i);
$msg .= " * Invalid 'cc on subscribe' value '$lconf{cc_on_subscribe}'\n" if ($lconf{cc_on_subscribe} !~ /^yes$|^no$/i);
$msg .= " * Invalid 'reply-to list' value '$lconf{reply_to_list}'\n" if ($lconf{reply_to_list} !~ /^yes$|^no$|\@/i);
$msg .= " * Invalid 'from' value '$lconf{outgoing_from}'\n" if ($lconf{outgoing_from} !~ /\@|^$/i);
$msg .= " * Invalid authentication request validity time: $lconf{auth_valid}\n" if ($lconf{auth_valid} !~ /^[0-9]+$/);
$msg .= " * Invalid archiving strategy '$lconf{archive}'\n" if ($lconf{archive} !~ /^no$|^daily$|^monthly$|^yearly$|^pipe$/i);
$msg .= " * Invalid 'strip rrq' value '$lconf{strip_rrq}'\n" if ($lconf{strip_rrq} !~ /^yes$|^no$/i);
$msg .= " * Invalid 'remove resent' value '$lconf{remove_resent}'\n" if ($lconf{remove_resent} !~ /^yes$|^no$/i);
my $translation = "$lconf{translationpath}/$lconf{language}";
$msg .= " * Invalid 'to recipient' value '$lconf{to_recipient}'\n" if ($lconf{to_recipient} !~ /^yes$|^no$/i);
$msg .= " * Translation file $translation not available'\n" unless (-f $translation || $lconf{language} eq "en");
if ($lconf{archive} eq 'pipe') {
(my $arpg, ) = split(/\s+/, $lconf{archpgm}, 2);
$msg .= " * $arpg doesn't exists!\n" unless (-x $arpg);
}
goto CfgCheckEnd if ($msg);
shift;
}
CfgCheckEnd:
print "\t=== FAILURE ===\n\nErrors are:\n".$msg."\n" if ($msg);
exit;
}
####################################################################
# >>>>>>>>>>>>>>>>>>>>>>>>> START HERE <<<<<<<<<<<<<<<<<<<<<<<<<<< #
####################################################################
{
# Clean old authentication requests
cleanAuth();
my ($message, $header, $body);
while (<STDIN>) {
s/\r//g; # Remove Windooze's \r, it is safe to do this
$message .= $_;
}
($header, $body) = split(/\n\n/, $message, 2); $header .= "\n";
undef $message; # Clear memory, it isn't used anymore
my $list = my $from;
my $sender = my $xsender = my $orig_subj = my $subject = '';
# Check SysV-style "From ". Stupid workaround for messages from robots, but
# with human-like From: header. In most cases "From " is the only way to
# find out envelope sender of message.
if ($header =~ /^From (.*)\n/i) {
exit 0 if ($1 =~ /(MAILER-DAEMON|postmaster)@/i); }
# Extract $list from command line or Delivered-To:
if ($ARGV[0]) { $list = $ARGV[0] }
elsif ($header =~ /(^|\n)delivered-to: (.*)\n/i) {
$list = $2; $list =~ s/@.*//; }
else {
die "no list specified on commond line and ".
"could not find \"delivered-to:\" header." }
undef $list if($list eq "minimalist");
# Extract From:
if ($header =~ /(^|\n)from:\s+(.*\n([ \t]+.*\n)*)/i) {
$from = $2; $from =~ s/$spaces/$1/ogs;
$from =~ s/\n//g; $from =~ s/\s{2,}/ /g; }
else {
die "Could not find \"from:\" header." }
# Sender and X-Sender are interesting only when generated by robots
# (Minimalist, MTA, etc), which (I think :) don't produce multiline headers.
if ($header =~ /(^|\n)sender: (.*)\n/i) { $sender = $2; }
if ($header =~ /(^|\n)x-sender: (.*)\n/i) { $xsender = $2; }
# If there is Reply-To, use this address for replying
my $mailto;
if ($header =~ /(^|\n)reply-to:\s+(.*\n([ \t]+.*\n)*)/i) {
$mailto = $2; $mailto =~ s/$spaces/$1/gs }
else {
$mailto = $from }
# Preparing From:
if ($from =~ s/$first/$3/og) { ;}
elsif ($from =~ s/$second/$2/og) { ;}
$from =~ s/\s+//gs; $from = lc($from);
exit 0 if (($xsender eq $conf{mesender}) || ($from eq $conf{mesender})); # LOOP detected
exit 0 if (($from =~ /(MAILER-DAEMON|postmaster)@/i) || # -VTV-
($sender =~ /(MAILER-DAEMON|postmaster)@/i) ||
($xsender =~ /(MAILER-DAEMON|postmaster)@/i)); # ignore messages from MAILER-DAEMON
exit 0 if ( $header =~ /^($conf{blocked_robots}):/); # disable loops from robots -VTV-
foreach (@blacklist) { # Parse access control list
if ( $_ =~ s/^!(.*)//g ) {
last if ( $from =~ /$1$/i || $sender =~ /$1$/i || $xsender =~ /$1$/i) }
else {
exit if ( $from =~ /$_$/i || $sender =~ /$_$/i || $xsender =~ /$_$/i) }
};
my $qfrom = quotemeta($from); # For use among with 'grep' function
# Look for user's supplied password
# in header (in form: '{pwd: blah-blah}' )
while ($header =~ s/\{pwd:[ \t]*(\w+)\}//i) {
$password = $1; }
# in body, as very first '*password: blah-blah'
if (!$password && $body =~ s/^\*password:[ \t]+(\w+)\n+//i) {
$password = $1; }
# Get (multiline) subject
if ($header =~ /(^|\n)subject:[ \t]+(.*\n([ \t]+.*\n)*)/i) {
$subject = $2;
$subject .= substr($^X,0,0); # taint $subject
$orig_subj = $subject =~ s/$spaces/$1/gs; }
$body =~ s/\n*$/\n/g;
$body =~ s/\n\.\n/\n \.\n/g; # Single '.' treated as end of message
#########################################################################
########################## Message to list ##############################
#########################################################################
if ($list) {
my $msg;
my @hdrcpt;
my @members;
my @rcpts;
my @readonly;
my @recip;
my @recipients;
my @rw;
my @writeany;
my @dontcopyme;
# normalize to exact directory name.
if (exists $lists{lc $list}) {
$list = $lists{lc $list};
}
else {
$msg = <<_EOF_ ;
ERROR:
Minimalist was called with the '$list' argument, but there is no such list.
SOLUTION:
Check your 'aliases' file - there is a possible typo.
_EOF_
send_message('Subject: Possible error in system settings', $msg, $conf{admin});
exit;
}
##################################
# Go to background, through fork #
##################################
if ($conf{background} eq 'yes') {
$msg = <<_EOF_ ;
ERROR:
Minimalist can not fork due to the following reason:
_EOF_
my $forks = 0;
FORK: {
if (++$forks > 4) {
$msg .= "\n Can't fork for more than 5 times\n\n";
send_message('Subject: Can not fork', $msg, $conf{admin});
exit;
}
my $pid;
if ($pid = fork) {
# OK, parent here, exiting
exit 0;
}
elsif (defined $pid) {
# OK, child here. Detach and do
close STDIN;
close STDOUT;
close STDERR;
}
elsif ($! =~ /No more process/i) {
# EAGAIN, supposedly recoverable fork error, but no more than 5 times
sleep 5;
redo FORK;
}
else {
# weird fork error, exiting
$msg .= "\n $!\n\n";
send_message('Subject: Can not fork', $msg, $conf{admin});
exit;
}
} # Label FORK
} # if ($conf{background})
load_config($list);
# Remove or exit per List-ID
exit 0 if ($header =~ s/(^|\n)list-id:\s+(.*)\n/$1/i && $2 =~ /$list.$conf{domain}/i);
if ($conf{modify_subject} ne 'no') {
my $tag = $conf{subject_tag} // $list;
$orig_subj = $subject;
if ($conf{modify_subject} eq 'more') { # Remove leading "Re: "
$subject =~ s/^.*:\s+(\[\Q$tag\E\])/$1/ig }
else { # change anything before [...] to Re:
$subject =~ s/^(.*:\s+)+(\[\Q$tag\E\])/Re: $2/ig; }
# Modify subject if not already done
if ($subject !~ /^(.*:\s+)?\[\Q$tag\E\] /i) {
$subject = "[$tag] ".$subject; }
}
open LIST, "$conf{listdir}/$list/list" and do {
while (my $ent = <LIST>) {
if ( $ent =~ /^(?!#)([[:graph:]]+@[[:graph:]]+)$/ ) {
$ent = lc($1);
# Get and remove per-user settings from e-mail
my $userSet;
($ent, $userSet) = split (/>/, $ent);
# Check for '+' (write access) or '-' (read only access)
if (defined $userSet && $userSet =~ /-/) { push (@readonly, $ent); }
elsif (defined $userSet && $userSet =~ /\+/) { push (@writeany, $ent); }
# Check for 'd' (dont copy me)
if (defined $userSet && $userSet =~ /d/) { push (@dontcopyme, $ent); }
# If user's maxsize
my $usrMaxSize = 0;
if (defined $userSet && $userSet =~ /#ms([0-9]+)/) { $usrMaxSize = $1; }
# If suspended (!) or maxsize exceeded, do not put in @members
if (defined $userSet && $userSet =~ /!/ || ($usrMaxSize && length($body) > $usrMaxSize)) {
push (@rw, $ent); }
else {
push (@members, $ent); }
}
}
close LIST;
};
# If sender isn't admin, prepare list of allowed writers
if (($conf{security} ne 'none') && ! verify($from, $password)) {
push (@rw, @members);
open LIST, "$conf{listdir}/$list/list-writers" and do {
while (my $ent = <LIST>) {
if ( $ent && $ent !~ /^#/ ) {
chomp($ent); $ent = lc($ent);
# Get and remove per-user settings from e-mail
my $userSet;
($ent, $userSet) = split (/>/, $ent);
# Check for '+' (write access) or '-' (read only access)
if (defined $userSet && $userSet =~ /-/) { push (@readonly, $ent); }
elsif (defined $userSet && $userSet =~ /\+/) { push (@writeany, $ent); }
# Check for 'd' (dont copy me)
if (defined $userSet && $userSet =~ /d/) { push (@dontcopyme, $ent); }
push (@rw, $ent); }
}
close LIST;
}
}
# If sender isn't admin and not in list of allowed writers
if (($conf{security} ne 'none') && ! verify($from, $password) && !grep(/^$qfrom$/i, @rw)) {
my $body =
mt('ERROR:'). "\n\t".
mt('You([_1]) are not subscribed to this list([_2]).', $from, $list).
"\n\n".
mt('SOLUTION:'). "\n\t".
mt("Send a message to [_1] with a subject of 'help' (no quotes) for information about howto subscribe.",
"$conf{me}").
"\n\n".
mt('Your message follows:').
'==========================================================================='.
$body.
'===========================================================================';
send_message("Subject: $subject", $body, $mailto)
}
# If list or sender in read-only mode and sender isn't admin and not
# in allowed writers
elsif (($conf{status} & $RO || grep(/^$qfrom$/i, @readonly)) && !verify($from, $password) && !grep(/^$qfrom$/i, @writeany)) {
my $body =
mt('ERROR:'). "\n\t".
mt('You([_1]) are not allowed to write to this list.', $from). "\n\n".
mt('Your message follows:').
'==========================================================================='.
$body.
'===========================================================================';
send_message("Subject: $subject", $body, $mailto)
}
elsif ($conf{maxsize} && (length($header) + length($body) > $conf{maxsize})) {
my $body =
mt('ERROR:'). "\n\t".
mt('Message size is larger than maximum allowed ([_1] bytes).',
$conf{maxsize}).
"\n\n".
mt('SOLUTION:'). "\n\t".
mt('Either send a smaller message or split your message into multiple smaller ones.').
"\n\n".
mt('Your message header follows:').
'==========================================================================='.
$header.
'===========================================================================';
send_message("Subject: $subject", $body, $mailto)
}
else { # Ok, all checks done.
logCommand($from, "L=\"$list\" T=\"$orig_subj\" S=".(length($header) + length($body))) if ($conf{logmessages} ne 'no');
$conf{archive} = 'no' if ($conf{arcsize} && length ($body) > $conf{arcsize});
if ($conf{archive} eq 'pipe') { arch_pipe($header, $body); }
elsif ($conf{archive} ne 'no') { archive($list, $header, $body); }
# Extract and remove all recipients of message. This information will be
# used later, when sending message to members except those who already
# received this message directly.
my $rc;
if ($header =~ s/(^|\n)to:\s+(.*\n([ \t]+.*\n)*)/$1/i) { $rc = $2 }
if ($header =~ s/(^|\n)cc:\s+(.*\n([ \t]+.*\n)*)/$1/i) { $rc .= ",".$2 }
if ($rc) {
foreach $rc (split /,/, $rc) {
if ($rc =~ s/$first/$4/) { push (@recip, $1) }
elsif ($rc =~ s/$second/$4/) { push (@recip, $1) }
else { $rc =~ s/$spaces/$1/; push (@recip, $rc); }
}
}
my $to_gecos;
# Search for user's supplied GECOS
foreach my $trcpt (@recip) {
$trcpt =~ s/$spaces/$1/gs;
next if (! $trcpt); # In case "To: e@mail, \n" - don't push spaces, which are between ',' and '\n'
push(@hdrcpt, $trcpt);
my $tmp_to_gecos = undef;
if ( $trcpt =~ s/$first/$3/g ) { ($tmp_to_gecos = $2) =~ s/$spaces/$1/gs; }
elsif ( $trcpt =~ s/$second/$2/g ) { ($tmp_to_gecos = $3) =~ s/$spaces/$1/gs; }
push(@rcpts, $trcpt = lc($trcpt));
$to_gecos = $tmp_to_gecos if ($tmp_to_gecos && $trcpt =~ /$list\@$conf{domain}/i);
}
# If there was To: and Cc: headers, put them back in message's header
if (@hdrcpt && $conf{to_recipient} eq 'no') {
# If there is administrator's supplied GECOS, use it instead of user's supplied
if ($conf{list_gecos}) {
for (my $i=0; $i<@hdrcpt; $i++) {
if ($hdrcpt[$i] =~ /$list\@$conf{domain}/i) { # Yes, list's address
$hdrcpt[$i] =~ s/$second/$2/g if (! ($hdrcpt[$i] =~ s/$first/$3/g));
$hdrcpt[$i] = "$conf{list_gecos} <$hdrcpt[$i]>";
}
}
$to_gecos = $conf{list_gecos};
}
chomp $header;
$header .= "\nTo: $hdrcpt[0]\n";
if (@hdrcpt > 1) {
$header .= "Cc: $hdrcpt[1]";
for (my $i=2; $i<@hdrcpt; $i++) {
$header .= ",\n\t$hdrcpt[$i]";
}
$header .= "\n";
}
}
# Remove conflicting headers
$header =~ s/(^|\n)x-list-server:\s+.*\n([ \t]+.*\n)*/$1/ig;
$header =~ s/(^|\n)precedence:\s+.*\n/$1/ig;
if ($conf{remove_resent} eq 'yes') {
$header =~ s/(^|\n)(resent-.*\n([ \t]+.*\n)*)*/$1/ig;
}
if ($conf{strip_rrq} eq 'yes') { # Return Receipt requests
$header =~ s/return-receipt-to:\s+.*\n//ig;
$header =~ s/disposition-notification-to:\s+.*\n//ig;
$header =~ s/x-confirm-reading-to:\s+.*\n//ig;
}
if ($conf{modify_msgid} eq 'yes') { # Change Message-ID in outgoing message
$header =~ s/message-id:\s+(.*)\n//i;
my $old_msgid = $1; $old_msgid =~ s/$first/$3/g;
my $msgid = "MMLID_".int(rand(100000));
$header .= "Message-ID: <$msgid-$old_msgid>\n";
}
chomp ($header);
$header .= "\nPrecedence: list\n"; # For vacation and similar programs
# Remove original From_ line unconditionally
$header =~ s/^From .*\n//;
# Remove original Reply-To unconditionally, set configured one if it is
$header =~ s/(^|\n)reply-to:\s+.*\n([ \t]+.*\n)*/$1/ig;
if ($conf{reply_to_list} eq 'yes') { $header .= "Reply-To: $to_gecos <$list\@$conf{domain}>\n"; }
elsif ($conf{reply_to_list} ne 'no') { $header .= "Reply-To: $conf{reply_to_list}\n"; }
if ($conf{modify_subject} ne 'no') {
$header =~ s/(^|\n)subject:\s+.*\n([ \t]+.*\n)*/$1/ig;
$header .= "Subject: $subject\n";
}
if ($conf{outgoing_from} ne '') {
$header =~ s/(^|\n)from:\s+.*\n([ \t]+.*\n)*/$1/ig;
$header .= "From: $conf{outgoing_from}\n";
}
if ($conf{listinfo} ne 'no') {
# --- Preserve List-Archive if it's there
my $listarchive;
if ($header =~ s/(^|\n)List-Archive:\s+(.*\n([ \t]+.*\n)*)/$1/i) { $listarchive = $2; }
# --- Remove List-* headers
$header =~ s/(^|\n)(List-.*\n([ \t]+.*\n)*)*/$1/ig;
$header .= "List-Help: <mailto:$conf{me}?subject=help>\n";
$header .= "List-Subscribe: <mailto:$conf{me}?subject=subscribe%20$list>\n";
$header .= "List-Unsubscribe: <mailto:$conf{me}?subject=unsubscribe%20$list>\n";
$header .= "List-Post: <mailto:$list\@$conf{domain}>\n";
$header .= "List-Owner: <mailto:$list-owner\@$conf{domain}>\n";
if ($conf{listinfo} ne 'yes') {
$header .= "List-Archive: $conf{listinfo}\n"; }
elsif ($listarchive) {
$header .= "List-Archive: $listarchive\n"; }
}
$header .= "List-ID: <$list.$conf{domain}>\n";
$header .= "X-List-Server: Minimalist v$version <http://www.mml.org.ua/>\n";
$header .= "X-BeenThere: $list\@$conf{domain}\n"; # This header deprecated due to RFC2919 (List-ID)
if ($conf{xtrahdr}) {
$conf{xtrahdr} =~ s/\\a/$conf{admin}/ig;
$conf{xtrahdr} =~ s/\\d/$conf{domain}/ig;
$conf{xtrahdr} =~ s/\\l/$list/ig;
$conf{xtrahdr} =~ s/\\o/$list-owner\@$conf{domain}/ig;
$conf{xtrahdr} =~ s/\\n/\n/ig;
$conf{xtrahdr} =~ s/\\t/\t/ig;
$conf{xtrahdr} =~ s/\\s/ /ig;
chomp $conf{xtrahdr};
$header .= "$conf{xtrahdr}\n";
}
# Convert plain/text messages to multipart/mixed or
# append footer to existing MIME structure
#
if (my $footer = read_info($list, 'footer')) {
$header =~ /(^|\n)Content-Type:\s+(.*\n(\s+.*\n)*)/i;
my $ctyped = $2;
# Check if there is Content-Type and it isn't multipart/*
if (!$ctyped || $ctyped !~ /^multipart\/(mixed|related)/i) {
$ctyped =~ /charset="?(.*?)"?[;\s]/i;
my $msgcharset = lc($1);
$header =~ /(^|\n)Content-Transfer-Encoding:\s+(.*)\n/i;
my $encoding = lc($1)
if ($header =~ /(^|\n)Content-Transfer-Encoding:[ \t]+(.*\n([ \t]+.*\n)*)/i);
# If message is 7/8bit text/plain with same charset without preset headers in
# footer, then simply add footer to the end of message
if ($ctyped =~ /^text\/plain/i &&
$encoding =~ /[78]bit|quoted-printable/i &&
($conf{charset} eq $msgcharset || $conf{charset} eq 'us-ascii') &&
$footer !~ /^\*hdr:[ \t]+/i)
{
given ($encoding) {
when (/[78]bit/) {
$body .= "\n\n$footer" }
when (/quoted-printable/) {
$body .= MIME::QuotedPrint::encode_qp("\n\n$footer") }
default {
die "Unknown encoding \"$encoding\"" }
}
}
else {
# Move Content-* fields to MIME entity
my @ctypeh;
while ($header =~ s/(^|\n)(Content-[\w\-]+:[ \t]+(.*\n([ \t]+.*\n)*))/$1/i) {
push (@ctypeh, $2)
}
my $boundary = "MML_".time()."_$$\@".int(rand(10000)).".$conf{domain}";
$header .= "MIME-Version: 1.0\n" if ($header !~ /(^|\n)MIME-Version:/);
$header .= "Content-Type: multipart/mixed;\n\tboundary=\"$boundary\"\n";
if ($footer !~ s/^\*hdr:[ \t]+// && $conf{charset}) {
$footer = "Content-Type: text/plain; charset=$conf{charset}\n".
"Content-Disposition: inline\n".
"Content-Transfer-Encoding: 8bit\n\n".$footer;
}
# Make body
$body = "\nThis is a multi-part message in MIME format.\n".
"\n--$boundary\n".
join ('', @ctypeh).
"\n$body".
"\n--$boundary\n".
$footer.
"\n--$boundary--\n";
}
}
else { # Have multipart message
$ctyped =~ /boundary="?(.*?)"?[;\s]/i;
my @boundary;
my $level = 1; $boundary[0] = $boundary[1] = $1; my $pos = 0;
THROUGH_LEVELS:
while ($level) {
my $hdrpos = index ($body, "--$boundary[$level]", $pos) + length($boundary[$level]) + 3;
my $hdrend = index ($body, "\n\n", $hdrpos);
my $entity_hdr = substr ($body, $hdrpos, $hdrend - $hdrpos)."\n";
$entity_hdr =~ /(^|\n)Content-Type:[ \t]+(.*\n([ \t]+.*\n)*)/i;
$ctyped = $2;
if ($ctyped =~ /boundary="?(.*?)"?[;\s]/i) {
$level++; $boundary[$level] = $1; $pos = $hdrend + 2;
next;
}
else {
my $process_level = $level;
while ($process_level == $level) {
# Looking for nearest boundary
$pos = index ($body, "\n--", $hdrend);
# If nothing found, then if it's last entity, add footer
# to end of body, else return error
if ($pos == -1) {
if ($level == 1) { $pos = length ($body); }
last THROUGH_LEVELS;
}
$hdrend = index ($body, "\n", $pos+3);
my $bound = substr ($body, $pos+3, $hdrend-$pos-3);
my $difflevel;
# End of current level?
if ($bound eq $boundary[$level]."--") { $difflevel = 1; }
# End of previous level?
elsif ($bound eq $boundary[$level-1]."--") { $difflevel = 2; }
else { $difflevel = 0; }
if ($difflevel) {
$pos += 1; $level -= $difflevel;
if ($level > 0) {
$pos += length ("--".$boundary[$level]."--"); }
}
# Next part of current level
elsif ($bound eq "$boundary[$level]") {
$pos += length ("$boundary[$level]") + 1;
}
# Next part of previous level
elsif ($bound eq "$boundary[$level-1]") {
$pos++; $level--;
}
# else seems to be boundary error, but do nothing
}
}
} # while THROUGH_LEVELS
if ($pos != -1) {
# If end of last level not found, workaround this
if ($pos == length($body) && $body !~ /\n$/) {
$body .= "\n"; $pos++; }
# Modify last boundary - it will not be last
substr($body, $pos, length($body)-$pos) = "--$boundary[1]\n";
# Prepare footer and append it with really last boundary
if ($footer !~ s/^\*hdr:[ \t]+// && $conf{charset}) {
$footer = "Content-Type: text/plain; charset=$conf{charset}; name=\"footer\"\n".
"Content-Transfer-Encoding: 8bit\n\n".$footer;
}
$body .= $footer."\n--$boundary[1]--\n";
}
# else { print "Non-recoverable error while processing input file\n"; }
}
}
if ($conf{copy_sender} eq 'no') { push (@rcpts, $from) } # @rcpts will be _excluded_
# Sort by domains
my @t;
@members = sort @t = Invert ('@', '!', @members);
@rcpts = sort @t = Invert ('@', '!', @rcpts);
@dontcopyme = sort @t = Invert ('@', '!', @dontcopyme);
for (my $r = my $m = 0; $m < @members; ) {
if ($r >= @rcpts || $members[$m] lt $rcpts[$r]) {
my $qmember = quotemeta($members[$m]);
if (!grep(/^$qmember$/i, @dontcopyme)) {
push (@recipients, $members[$m++]); }
else {
my ($dom, $us) = split ('!', $members[$m]);
if ($us.'@'.$dom ne $from) {
push (@recipients, $members[$m++]); }
else {
$m++;
}
}
}
elsif ($members[$m] eq $rcpts[$r]) { $r++; $m++; }
elsif ($members[$m] gt $rcpts[$r]) { $r++ };
}
@recipients = Invert ('!', '@', @recipients);
#########################################################
# Send message to recipients ($conf{maxrcpts} per message)
warn "Empty recipient" if(grep($_ eq '', @recipients));
my $maxrcpts =
($conf{errors_to} eq 'verp' || $conf{to_recipient} eq 'yes')
? 1 : $conf{maxrcpts};
while (@recipients) {
my @bcc = splice(@recipients, 0, $maxrcpts);
my $hdr = $header;
my $verp_bcc = $bcc[0]; $verp_bcc =~ s/\@/=/g;
$hdr .= "To: $bcc[0]\n" if ($conf{to_recipient} eq 'yes');
my $envelope_sender;
given ($conf{errors_to}) {
when('drop') { $envelope_sender = "$conf{me}"; }
when('admin') { $envelope_sender = "$conf{admin}"; }
when('verp') { $envelope_sender = "$list-owner-$verp_bcc\@$conf{domain}"; }
when($_ ne 'sender') { $envelope_sender = $conf{errors_to} }
default { $envelope_sender = ""; }
}