6 $VERSION=do { my @r=(q$Revision$=~/\d+/g); sprintf "%d.".("%03d"x$#r),@r; };
13 Sys::Syslog::openlog("perlmail","pid","mail");
15 sub syslogging_on_save
17 push @syslogging_stack,$SIG{"__WARN__"},$SIG{"__DIE__" };
18 $SIG{"__WARN__"}=sub { Sys::Syslog::syslog("warning","WARN: %s",$_[0]); }; # disabled: print STDERR $_[0];
19 $SIG{"__DIE__" }=sub { Sys::Syslog::syslog("crit" ,"DIE: %s" ,$_[0]); };
22 sub syslogging_restore
24 $SIG{"__DIE__" }=pop @syslogging_stack;
25 $SIG{"__WARN__"}=pop @syslogging_stack;
32 use lib $ENV{"PERLMAIL_BASEDIR"} || File::Basename::dirname($0);
37 use Mail::Audit qw(MAPS);
39 use Carp qw(cluck confess);
40 use POSIX qw(WIFEXITED WEXITSTATUS WIFSIGNALED WTERMSIG WIFSTOPPED WSTOPSIG);
41 require POSIX; # for ceil
44 require Mail::Address;
47 require HTML::Entities;
49 require Lingua::EN::Squeeze;
51 require HTTP::Cookies;
52 require HTTP::Request;
53 require LWP::UserAgent;
54 use URI::Escape 'uri_escape';
58 our($Message,$Audit,@AuditStored,$store_ignore,$store_ignorenewmail,$store_profile,$DoBell);
59 our(%audit_profile,@sms_squeezes,@alternates_host,@dnsbl_whitelist); # imported
60 my %alternates_host; # from @alternates_host
61 my %dnsbl_whitelist; # from @dnsbl_whitelist
63 # from RedHat "procmail-3.22-5"
64 # /i should be only $procmailFROM_DAEMON but how it can hurt to /i all?
65 our $procmailTO_ =qr'^((Original-)?(Resent-)?(To|Cc|Bcc)|(X-Envelope|Apparently(-Resent)?)-To):(.*[^-a-zA-Z0-9_.])?'mio;
66 our $procmailTO =qr'^((Original-)?(Resent-)?(To|Cc|Bcc)|(X-Envelope|Apparently(-Resent)?)-To):(.*[^a-zA-Z])?'mio;
67 our $procmailFROM_DAEMON=qr'^(Mailing-List:|Precedence:.*(junk|bulk|list)|To: Multiple recipients of |(((Resent-)?(From|Sender)|X-Envelope-From):|>?From )([^>]*[^(.%@a-z0-9])?(Post(ma?(st(e?r)?|n)|office)|(send)?Mail(er)?|daemon|m(mdf|ajordomo)|n?uucp|LIST(SERV|proc)|NETSERV|o(wner|ps)|r(e(quest|sponse)|oot)|b(ounce|bs\.smtp)|echo|mirror|s(erv(ices?|er)|mtp(error)?|ystem)|A(dmin(istrator)?|MMGR|utoanswer))(([^).!:a-z0-9][-_a-z0-9]*)?[%@> ][^<)]*(\(.*\).*)?)?$([^>]|$))'mio;
68 our $procmailFROM_MAILER=qr'^(((Resent-)?(From|Sender)|X-Envelope-From):|>?From )[^>]*\b(Post(ma(st(er)?|n)|office)|(send)?Mail(er)?|daemon|mmdf|n?uucp|ops|r(esponse|oot)|(bbs\.)?smtp(error)?|s(erv(ices?|er)|ystem)|A(dmin(istrator)?|MMGR))(([^).!:a-z0-9][-_a-z0-9]*)?[%@> ][^<)]*(\(.*\).*)?)?$([^>]|$)'mio;
69 # perl-5.8.0 does not cope w/original FROM_MAILER on the third '?' character
70 # Thus we did '([^>]*[^(.%@a-z0-9])?' -> '[^>]*\b', I hope it is somehow similiar
71 # original FROM_MAILER =qr'^(((Resent-)?(From|Sender)|X-Envelope-From):|>?From )([^>]*[^(.%@a-z0-9])?(Post(ma(st(er)?|n)|office)|(send)?Mail(er)?|daemon|mmdf|n?uucp|ops|r(esponse|oot)|(bbs\.)?smtp(error)?|s(erv(ices?|er)|ystem)|A(dmin(istrator)?|MMGR))(([^).!:a-z0-9][-_a-z0-9]*)?[%@> ][^<)]*(\(.*\).*)?)?$([^>]|$)'mio;
74 my $opt_smstest; # 1 or $smscount
83 syslogging_restore(); # This is more a debugging session
88 die "Invalid 'From ' line: $_" if $message eq "" && !/^From /;
89 if (/^From / && $message) {
95 process $message if $message;
99 # FIXME: separate 'perlmail'-transfer together with perlmail-submit away
102 die "Excessive arguments" if @ARGV;
104 IO::Handle::autoflush STDOUT 1;
109 confess "Unexpected EOF" if !defined $length;
110 confess "Missing EOL" if $length!~s/\n$//s;
111 exit 0 if $length eq "BYE";
112 confess "Unrecognized length: $length" if $length!~/^\d+$/;
115 $length==($_=read STDIN,$message,$length) or confess "Got $_ out of required $length bytes";
116 $length==length $message or confess "False read return ".length($message)." instead of $length";
123 bell() or warn "Unable to BELL";
134 open BELL,">/dev/tty11" or return 0;
136 close BELL or return 0;
142 return 0 if ! -e "$HOME/away";
143 my %valid_users=map(($_=>1),@ValidUsers);
144 my($idlebest,$linebest);
145 for my $utmp (User::Utmp::getut(),{ "ut_line"=>"psaux" }) {
147 next if defined($_=$utmp->{"ut_type"}) && $_!=User::Utmp::USER_PROCESS;
148 next if defined($_=$utmp->{"ut_user"}) && !$valid_users{$_};
149 my $line="/dev/".$utmp->{"ut_line"};
150 my $atime=(stat $line)[8];
151 my $what="user \"".($utmp->{"ut_user"} || "<local>")."\", line \"$line\"";
152 warn "Unable to stat $what" and next if !$atime;
153 my $idle=time()-$atime;
154 warn "atime in future for $what" and next if $idle<0;
155 next if $idle>$IdleMax;
156 next if defined $idlebest && $idlebest<=$idle;
160 return !wantarray() ? $idlebest : ($idlebest,$linebest);
163 # return only the very (recursive) first part
166 return $Audit if !$Audit->is_mime();
169 $first=$_ while $_=$first->parts(0);
177 return $Audit->is_mime() ? $part->head()
178 : MIME::Head->new([ split "\n",$Audit->head()->as_string() ])
186 # be vary cautious here as most of $part methods will encode it!
187 return join "",@{$Audit->body()} if !$Audit->is_mime();
188 my $bodyhandle=$part->bodyhandle();
189 # If MIME is corrupted we don't get bodyhandle() for this part
190 # It may occur when "boundary" is specified by header but no such boundary is found in the body
191 return $bodyhandle->as_string() if $bodyhandle;
192 warn "MIME corrupted, adapting";
193 return $part->body_as_string();
200 return $Audit->is_mime() ? $part->effective_type() : mimehead($part)->mime_type();
205 my $first=body_first();
206 my $r=mimebody($first);
207 my $mime_type=mime_type($first);
208 if ($mime_type eq "text/html") {
209 # HTML::FormatText just does a useless text layouts
210 # PerlIO::via::StripHTML probably needs PerlIO input (?)
212 $r=HTML::Entities::decode($r);
213 # FIXME: detect charset from <meta> tag: "Content-type: text/html; charset=<???>"
215 elsif ($mime_type eq "application/pgp-encrypted"
216 && (my $filename=mimehead($first)->mime_attr("Content-Disposition.filename"))
218 # first part contains just "Version: 1" as of GnuPG v1.0.4 (GNU/Linux)
221 if ((my $charset=mimehead($first)->mime_attr("Content-Type.charset"))) {
222 my $cstocs=Cz::Cstocs->new($charset,"ascii");
223 $r=&$cstocs($r) if $cstocs; # charset may be unknown
232 return $Audit if !$part && !$Audit->is_mime();
234 # don't use '!$part->parts()' as even 0-parts-multiparts are still multiparts
235 return $part if $part->bodyhandle();
236 return map { (parts_linear($_)); } $part->parts();
241 my($smsi,$smscount)=@_;
243 return "$smsi/$smscount:" if $smscount>1;
249 my($ignorenewmail,$smscount,%args)=@_;
253 if (!$ignorenewmail) { # send by mail
254 $l-=length("Z emailu FIXME SMSmailError: ");
255 $l-=length(smsbuild($_,$smscount));
258 $l-=6; # 154 is the max length before split; why?
266 my($squeezed,$smscount,@lens)=@_;
268 $smscount=POSIX::ceil($smscount/5);
269 for my $smsi (0..$smscount-1) {
270 my $len=$lens[$smsi];
271 $squeezed=~/^.{0,$len}/s;
274 return 0 if 3!=@SMSwebRcpt;
276 open F,"$HOME/priv/WWW-SMS-$SMSwebRcpt_username.pwd" or return 0;
280 my $sms=WWW::SMS->new(@SMSwebRcpt,$frag,"username"=>$SMSwebRcpt_username,"passwd"=>$pwd);
281 for ($sms->gateways("sorted"=>"reliability")) {
282 last if $sms->send($_);
283 Sys::Syslog::syslog("warning","Web SMS send failed: %s",$WWW::SMS::Error);
284 my $void=$WWW::SMS::Error; # Prevent: Name "WWW::SMS::Error" used only once
292 my($squeezed,$smscount,@lens)=@_;
299 my($ignorenewmail,$smscount,%args)=@_;
302 "subject"=>unmime($Audit->subject()),
303 "from"=>[ Mail::Address->parse(unmime($Audit->from())) ],
304 "body"=>substr(body_simple(),0,$MaxBodySMS*(1+0.25*$smscount)),
307 ($texthead,$text)=@$text if ref $text;
308 do { print "$texthead\n$text\n"; return; } if $opt_smstest;
309 my @lens=smslens($ignorenewmail,$smscount,%args);
311 $maxlen+=$_ for (@lens);
313 for my $squeeze (@sms_squeezes) {
315 Lingua::EN::Squeeze::SqueezeControl($_) if defined ($_=$squeeze->{"SqueezeControl"});
316 $Lingua::EN::Squeeze::SQZ_OPTIMIZE_LEVEL or 1; # prevent: Name "$_" used only once: possible typo
317 $Lingua::EN::Squeeze::SQZ_OPTIMIZE_LEVEL=$_ if defined ($_=$squeeze->{"SQZ_OPTIMIZE_LEVEL"});
318 $squeezed=Lingua::EN::Squeeze::SqueezeText($text);
320 last if $maxlen>=length($texthead.$squeezed);
322 $squeezed=substr $texthead.$squeezed,0,$maxlen; # strip if we passed thru last for() above
324 for ($smscount=0;$recalclen<length $squeezed;$smscount++) {
325 $recalclen+=$lens[$smscount];
327 my $func=($ignorenewmail ? \&smssend_web : \&smssend_mail);
328 &$func($squeezed,$smscount,@lens);
333 my($ignorenewmail,@args)=@_;
335 return if !$opt_smstest && !$opt_idle && defined useridle();
337 return $_ if $_=smssend(1,@args); # web
338 return $_ if !$ignorenewmail && ($_=smssend(0,@args)); # mail
339 warn "Unable to SMSsend the mail";
346 return "<???>" if !defined($_) || /^\s*$/s;
349 return $_ if length($_)<128;
350 return substr($_,0,128)."...";
353 our $profile_eval_depth=0;
359 die "Nesting profile: $name" if 0x10<=(local $profile_eval_depth=$profile_eval_depth+1);
360 return @$name if ref $name;
361 die "Profile not found: $name" if !exists $audit_profile{$name};
362 my @this=@{$audit_profile{$name}};
363 return (profile_eval($'),@this[1..$#this]) if $this[0] && $this[0]=~/^=/;
371 return join(",",map({ $_->name() or $_->address(); } Mail::Address->parse($text)));
380 for (${$_}[1],"iso-8859-2") {
381 last if $_ && ($cstocs=Cz::Cstocs->new($_,"ascii"));
384 } MIME::Words::decode_mimewords($text));
387 # $folder: "$folder; comment"
388 # $profile as profile_eval($name)
391 my($folder,$profile,%args)=@_;
393 $profile=$store_profile if !$profile;
394 my %do=map({ (!/=/ ? ($_=>1) : ($`=>$')); } profile_eval($profile));
395 Sys::Syslog::syslog("info","%s%s%s: %s: %s",
396 (!$opt_dry ? "" : "--dry: "),
397 (!$store_ignore ? "" : "IGNORED[$store_ignore]: "),
398 map({ cut($_); } $folder,address_show(unmime($Audit->from())),unmime($Audit->subject())),
400 if $do{"syslog"} || $opt_dry;
402 $folder="$Mail/".$' if $folder=~/^=/;
403 push @AuditStored,$folder if $do{"did"};
404 return if $store_ignore || $opt_dry;
405 $DoBell++ if $do{"bell"};
406 write_message($folder) or die;
407 smssend_tryall $store_ignorenewmail,$do{"sms"},%args if $do{"sms"};
412 # no &$funcref=>did smth in this block
413 # &$funcref,@funcargs
416 my($funcref,@funcargs)=@_;
418 return @AuditStored!=$did_last if !$funcref;
419 local $did_last=@AuditStored;
420 &$funcref(@funcargs);
421 return @AuditStored!=$did_last;
424 # Never use Mail::Audit->store() as it will reformat MIME bodies and possibly corrupt OpenPGP!
431 open F,">>$folder" or do { warn "Append \"$folder\": $!"; return 0; };
434 ($_=Mail::Audit::audit_get_lock(\*F,$folder)) and do { warn "Lock \"$folder\": $!"; last; };
435 seek F,0,IO::Handle::SEEK_END or do { warn "Seek-end \"$folder\": $!"; last; };
436 # FIXME: Check for '^From ' to not to rely on our network peer
437 print F $Message or do { warn "Write to \"$folder\": $!"; last; };
438 do { print F "\n"; warn "Missing trailing newline, fixed"; } if $Message!~/\n$/s;
439 close F or do { warn "Close \"$folder\""; last; };
442 warn "MAIL DROPPED for folder: $folder";
453 local $Message=$message;
454 local $Audit=Mail::Audit->new(
455 "emergency"=>"$Mail/emergency",
456 "data"=>[map("$_\n",split("\n",$message))],
457 "log"=>"$HOME/.perlmail.log",
460 local @AuditStored=();
461 do { smssend 0,$opt_smstest; return; } if $opt_smstest;
462 write_message("$Mail/input") or die;
464 warn 'Corrupted $_, repaired' if defined($save_)!=defined($_) || (defined($_) && $save_ ne $_);
469 # return: true (error-message or "1") if is spam
472 # razor-check has exit code 1 if NOT spam, code 0 if IS spam
474 local $SIG{"PIPE"}=sub { warn "razor2 gave me SIGPIPE: broken pipe"; };
475 # prevent Razor2's: Can't call method "log" on unblessed reference at Razor2/Client/Agent.pm line 212.
476 local $ENV{"HOME"}=$HOME;
478 .'('.'(razor-check 2>&1;echo >&3 $?)'
479 .'|sed "s/^/razor-check: /"'
480 .'|logger -t "perlmail['.$$.']" -p mail.crit'
484 print CHILD $Message;
488 $return=<CHILD> || 1;
491 return undef() if !WIFEXITED($?);
492 return undef() if WIFSIGNALED($?);
493 return undef() if WIFSTOPPED($?);
494 return undef() if WEXITSTATUS($?);
495 return $return; # is-spam
498 # NOTE: returns undef() if !wantarray and the first header is unrecognized
503 for my $hdr ($Audit->head->get("Received")) {
504 my($for)=($hdr=~/\bfor\s+\<?(\S+)\>?\b/);
505 return $for if !wantarray();
506 push @r,$for if $for;
507 my($from,$fromaddr)=($hdr=~/\bfrom\s+(?:(\S+)\b.*?)??\[((?:\d{1,3}\.){3}\d{1,3})\]/);
508 $from=$fromaddr if !defined $from;
509 push @r,"$from:$fromaddr" if $from;
514 # Extended Mail::Audit::MAPS
515 # $domain,$full,[$timeout]
518 my($domain,$full,$timeout)=@_;
521 $Mail::Audit::MAPS::host=$domain;
522 my @hosts=map({ s/^.*://; "[$_]"; } # strip DNS part
523 grep({ /^([^:@]*):/ # $1 is DNS name, $' is IP address
524 && !$alternates_host{$1} # leave only foreign hosts
525 && !$dnsbl_whitelist{$'}; } (Received_for()))
527 splice @hosts,1 if !$full && @hosts; # "&& @hosts" to prevent: WARN: splice() offset past end of array
529 package My::Audit::Faked;
530 sub received { return @{$_[0]->{"received"}}; }
533 "received"=>[@hosts],
535 bless $self_faked,"My::Audit::Faked";
536 return Mail::Audit::rblcheck($self_faked,$timeout);
543 next if !(my $key=(/^alias\s+(\S+)\s+/)[0]);
544 for my $addrobj (Mail::Address->parse($')) {
545 my $addr=$addrobj->address();
546 my $ref=\$r{"\L$addr"};
547 $$ref=$key if !$$ref; # use always the first occurence to prefer nicks
553 # FIXME: host may get multiple recipients and thus not showing "for <...>"
554 # FIXME: muttrc_get("from") is too strict
555 sub store_muttrc_alternates
557 my($prefix,$profile)=@_;
559 my $alternates=muttrc_get("alternates") or return;
560 my $alternatesre=qr/$alternates/si;
561 my $From=muttrc_get("from") or return;
562 my $Fromre=qr/^\Q$From\E$/si;
563 my $Fromobj=parseone $From or return;
564 warn "'From' \"$From\" not matched by 'alternates': $alternatesre"
565 if $From!~/$alternates/si;
566 for my $for (reverse Received_for()) {
567 $for=~s/:.*$//; # strip IP address here
568 if ($Fromobj->user() ne "prog-mutt") {
569 next if lc($for) eq lc($From);
572 my $forobj=parseone $for;
573 if ($forobj && $forobj->host()) {
574 # it is 'for' our primary address
575 next if lc($forobj->host()) eq lc($Fromobj->host()); # or 'return'? shouldn't matter
578 next if !$alternates_host{lc $for} && $for!~/$alternatesre/si;
579 store "$prefix\L$for",($profile || []);
585 # $header: !ref => $Audit->get($header)
586 # $maybeaddress: qr/regex/i
587 # $maybeaddress: "string"
588 # $maybeaddress: "<Regexp:regex>" # hack :-(
589 # $maybeaddress: "<user@host>"
590 # $maybeaddress: "<user@>"
591 # $maybeaddress: "<@host>"
594 my($re,$justone,$header,$maybeaddress)=@_;
597 $header=join(",",&$header());
600 $header=$Audit->get($header);
602 return 0 if !$header;
603 return $header=~/$maybeaddress/i if "Regexp" eq ref $maybeaddress;
604 return $header=~/$re/i if !defined(my $want=($maybeaddress=~/^\<(.*)\>$/)[0]);
605 my @parsed=Mail::Address->parse($header);
606 warn "'mailto:' forbidden in pattern: $want" if $want=~/^\Qmailto:\E/;
607 return 0 if $justone && 1!=@parsed;
609 if ($want=~/^Regexp:/)
610 { $_->address()=~/$'/i; }
612 { $_->user() =~/^(?:\Qmailto:\E)?\Q$`\E/i; }
614 { $_->host() =~/^\Q$'\E/i; }
616 { $_->address()=~/^(?:\Qmailto:\E)?\Q$want\E/i; }
622 my($header,$substr)=@_;
624 return _headercore(qr/\Q$substr\E/i,0,$header,$substr);
629 my($header,$string)=@_;
631 return _headercore(qr/\Q$string\E/i,1,$header,$string);
639 my $text=$Audit->get($header);
641 while (my($from,$to)=each(%$map)) {
642 $text=~s/\b\Q$from\E\b/$to/gsi;
644 return if $text eq $orig;
645 $Audit->put_header("X-PerlMail-header_remap-$header",$orig);
646 $Audit->replace_header($header,$text);
652 $Getopt::Long::ignorecase=0;
653 die "GetOptions error" if !Getopt::Long::GetOptions(
654 "inetd" ,sub { $opt_mode=\&inetd; },
655 "stdin" ,sub { $opt_mode=\&stdin; },
657 "smstest:s",sub { $opt_mode=\&stdin; $opt_smstest=($_[1] || 1); },
659 "idletest" ,sub { syslogging_restore(); print((defined($_=useridle()) ? $_ : "<undef>")."\n"); exit 0; },
660 "muttrc" ,sub { syslogging_restore(); print scalar muttrc(); exit 0; },
662 # "Excessive arguments" checked in &inetd
663 die "Missing mode" if !$opt_mode;
665 PerlMail::Config::audit_init();
666 %alternates_host=map((lc($_)=>1),@alternates_host);
667 %dnsbl_whitelist=map(( $_ =>1),@dnsbl_whitelist);