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@mrmt
Created Nov 21, 2011
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libkern.pl from fml
#!/usr/bin/perl
#
# Copyright (C) 1993-2001 Ken'ichi Fukamachi
# All rights reserved.
# 1993-1996 fukachan@phys.titech.ac.jp
# 1996-2001 fukachan@sapporo.iij.ad.jp
#
# FML is free software; you can redistribute it and/or modify
# it under the terms of GNU General Public License.
# See the file COPYING for more details.
#
# $FML: fml.pl,v 2.124.2.6 2001/10/15 12:53:04 fukachan Exp $
##### SubRoutines #####
####### Section: Main Mode Bifurcation
# NOT $Envelope{'mode:ctladdr'} IS IMPORTANT;
# mode:ctladdr >> mode:distribute, mode:distribute*
# Changed a lot at 2.1 DELTA
sub ModeBifurcate
{
local($command_mode, $member_p, $compat_hml);
# Do nothing. Tricky. Please ignore
if ($DO_NOTHING) { return 0;}
# DataBase Access Probe()
# return ASAP if database server is inaccessible.
if ($USE_DATABASE) {
&use('databases');
# try to probe server
my (%mib, %result, %misc, $error);
&DataBaseMIBPrepare(\%mib, 'member_p', {'address' => $From_address});
&DataBaseCtl(\%Envelope, \%mib, \%result, \%misc);
if ($mib{'error'}) {
&Mesg(*Envelope, 'database error occurs', 'configuration_error');
return 0; # return ASAP
}
}
# member ot not?
&AdjustActiveAndMemberLists;
$member_p = &MailListMemberP($From_address);
$member_p = 1 if $Envelope{"trap:+"};
$Envelope{'mode:stranger'} = 1 unless $member_p;
# chaddr is available from new address if old to "chaddr" is a member;
# hml compatible case (not default)
if (!$member_p && $Envelope{'mode:uip:chaddr'}) {
&use('utils');
if (&ChAddrModeOK($Envelope{'mode:uip:chaddr'})) {
$Envelope{'mode:uip'} = $member_p = 1;
}
}
# hml compatible case (not default)
elsif ($CHADDR_AUTH_TYPE eq 'confirmation' &&
$Envelope{'mode:uip:chaddr-confirm'}) {
$Envelope{'mode:uip'} = 1;
}
# fml 0.x - fml 2.1gamma compat (not default)
$compat_hml = &CompatFMLv1P;
# default
$REJECT_POST_HANDLER = $REJECT_POST_HANDLER || 'Reject';
$REJECT_COMMAND_HANDLER = $REJECT_COMMAND_HANDLER || 'Reject';
%RejectHandler = ("reject", "RejectHandler",
"auto_regist", "AutoRegistHandler",
"autoregist", "AutoRegistHandler",
"ignore", "IgnoreHandler",
"auto_subscribe", "AutoRegistHandler",
"auto_asymmetric_regist", "AutoRegistHandler",
);
if ($debug) {
&Log("ModeBifurcate: \$PERMIT_POST_FROM $PERMIT_POST_FROM");
&Log("ModeBifurcate: \$PERMIT_COMMAND_FROM $PERMIT_COMMAND_FROM");
&Log("ModeBifurcate: artype $AUTO_REGISTRATION_TYPE");
&Log("ModeBifurcate: key $AUTO_REGISTRATION_KEYWORD");
&Log("ModeBifurcate: member_p $member_p");
}
### 00.01 Run Hooks
if ($MODE_BIFURCATE_HOOK) {
&eval($MODE_BIFURCATE_HOOK, "MODE_BIFURCATE_HOOK");
}
### 01: compat_hml mode
if ($compat_hml) {
&Log("compat_hml mode") if $debug;
if (!$Envelope{"compat:cf2:post_directive"} &&
($Envelope{'mode:req:guide'} || $Envelope{'req:guide'})) {
&GuideRequest(*Envelope); # Guide Request from anyone
return; # end;
}
local($ca) = &CutFQDN($CONTROL_ADDRESS);
# Default LOAD_LIBRARY SHOULD NOT BE OVERWRITTEN!
if ($Envelope{'mode:uip'} &&
($Envelope{'trap:rcpt_fields'} =~ /$ca/i)) {
$command_mode = 1;
}
}
### 02: determine command mode or not
if ($Envelope{'mode:ctladdr'} || $COMMAND_ONLY_SERVER) {
&Log("\$command_mode = 1;") if $debug;
$command_mode = 1;
}
# BACKWARD COMPATIBLE
# when trap the mail body's "# command" syntax but without --ctladdr
# at this switch already "!$Envelope{'mode:ctladdr'}" is true
# but post=* is exception
elsif ($compat_hml && $Envelope{'mode:uip'}) {
&Log("backward && uip => command_mode on") if $debug;
$command_mode = 1;
}
# post=* mode and !"ctladdr mode" disables commands
if (!$Envelope{"mode:ctladdr"} &&
$Envelope{"compat:cf2:post_directive"}) {
&Log("02 undef \$command_mode = $command_mode;") if $debug;
undef $command_mode;
}
&Log("03 \$command_mode = $command_mode;") if $debug;
# initialize Information
&GenInfo;
### 03: Bifurcate by Condition
# Do nothing. Tricky. Please ignore
if ($DO_NOTHING) {
return 0;
}
# command mode?
elsif ($command_mode) {
$Envelope{'pcb:mode'} = 'command'; # process control block
# NOT PERMIT COMMAND WHEN MAIL SIZE IS OVER LIMIT.
if ($Envelope{'trap:mail_size_overflow'}) {
&Log("ModeBifurcate: ignore too bit mail in command mode");
return $NULL;
}
if ($PERMIT_COMMAND_FROM eq "anyone") {
require($LOAD_LIBRARY = $LOAD_LIBRARY || 'libfml.pl');
&Command() if $ForceKickOffCommand;
}
elsif ($PERMIT_COMMAND_FROM eq "members_only" ||
$PERMIT_COMMAND_FROM eq "members"
) {
if ($member_p) {
if ($Envelope{'mode:req:unsubscribe-confirm'}) {
undef $LOAD_LIBRARY;
require 'libfml.pl';
&Command($Envelope{'buf:req:unsubscribe-confirm'});
}
else {
require($LOAD_LIBRARY = $LOAD_LIBRARY || 'libfml.pl');
&Command() if $ForceKickOffCommand;
}
}
# not member and ignore the mail
elsif ((! $member_p) && ($REJECT_COMMAND_HANDLER eq "ignore")) {
&Log("ignore request from not member");
}
# chaddr-confirm
elsif ((! $member_p) && $Envelope{'mode:req:chaddr-confirm'}) {
&use('trap');
&Trap__ChaddrConfirm(*Envelope);
}
# chaddr
elsif ((! $member_p) && $Envelope{'mode:req:chaddr'}) {
&use('trap');
&Trap__ChaddrRequest(*Envelope);
}
# we should return reply for "guide" request from even "stranger";
elsif ((! $member_p) &&
($Envelope{'mode:req:guide'} || $Envelope{'req:guide'})) {
&GuideRequest(*Envelope);
}
# MANUAL REGISTRATION REQUEST WITH CONFIRMATION (subscribe)
elsif ((! $member_p) && $Envelope{'mode:req:subscribe'} &&
&NonAutoRegistrableP) {
&Log("manual subscribe request");
&use('confirm');
&ManualRegistConfirm(*Envelope, 'subscribe',
$Envelope{'buf:req:subscribe'});
}
# MANUAL REGISTRATION REQUEST WITH CONFIRMATION (confirm)
elsif ((! $member_p) && $Envelope{'mode:req:confirm'} &&
&NonAutoRegistrableP) {
&Log("manual subscribe confirmed");
&use('confirm');
&ManualRegistConfirm(*Envelope, 'confirm',
$Envelope{'buf:req:confirm'});
}
else {
$fp = $RejectHandler{$REJECT_COMMAND_HANDLER}||"RejectHandler";
&$fp(*Envelope);
}
}
elsif ($PERMIT_COMMAND_FROM eq "moderator") { # dummay ?
&use('moderated');
$Envelope{'mode:moderator:command'} = 1;
&ModeratedDelivery(*Envelope); # Moderated: check Approval;
}
else {
&Log("ERROR: \$PERMIT_COMMAND_FROM is unknown type.");
}
}
# distribute
else {
$Envelope{'pcb:mode'} = 'distribute'; # process control block
if ($PERMIT_POST_FROM eq "anyone") {
&Distribute(*Envelope, 'permit from anyone');
}
elsif ($PERMIT_POST_FROM eq "members_only" ||
$PERMIT_POST_FROM eq "members"
) {
if ($member_p) {
&Distribute(*Envelope, 'permit from members_only');
}
else {
$fp = $RejectHandler{$REJECT_POST_HANDLER}||"RejectHandler";
&$fp(*Envelope);
}
}
elsif ($PERMIT_POST_FROM eq "moderator") {
&use('moderated');
&ModeratedDelivery(*Envelope); # Moderated: check Approval;
}
else {
&Log("ERROR: \$PERMIT_POST_FROM is unknown type.");
}
# to ensure the unique Date: (since the smallest unit is second).
if ($DATE_TYPE =~ /distribute-date/) { sleep 1;}
}
&LogFileNewSyslog if $LOGFILE_NEWSYSLOG_LIMIT; # log file turn over
}
####### Section: Main Functions
#
# Configuration Files: evalucation order
#
# 1 site_init site default
# 2 <ML>/config.ph each ML configurations
# 3 sitedef force site-own-rules to overwrite ML configrations
#
sub LoadConfig
{
# configuration file for each ML
if (-e "$DIR/config.ph" && ((stat("$DIR/config.ph"))[4] != $<)) {
print STDERR "\nFYI: include's owner != config.ph's owner, O.K.?\n\n";
}
# 3.0B new loading configuration
# XXX &__LoadConfiguration('__KERN__'); for main routine: fml.pl, libkern
# XXX &__LoadConfiguration; for other tools: bin/* ...
require 'libloadconfig.pl'; &__LoadConfiguration('__KERN__');
require 'libsmtp.pl'; # a library using smtp
# load MIME handling functions for convenience
if ($LANGUAGE eq 'Japanese') { require 'libMIME.pl';}
# if mode:some is set, load the default configuration of the mode
for (keys %Envelope) {
/^mode:(\S+)/ && $Envelope{$_} && do { &DEFINE_MODE($1);};
}
}
sub SetDefaults
{
$NULL = ''; # useful constant :D
$Envelope{'mci:mailer'} = 'ipc'; # use IPC(default)
$Envelope{'mode:uip'} = ''; # default UserInterfaceProgram is nil.;
$Envelope{'mode:req:guide'} = 0; # not member && guide request only
$LOCKFILE = "$$ $DIR"; # (variable name is historical, not meaning)
{ # DNS AutoConfigure to set FQDN and DOMAINNAME;
local(@n, $hostname, $list);
chop($hostname = `hostname`); # beth or beth.domain may be possible
$FQDN = $hostname;
@n = (gethostbyname($hostname))[0,1]; $list .= " @n ";
@n = split(/\./, $hostname); $hostname = $n[0]; # beth.dom -> beth
@n = (gethostbyname($hostname))[0,1]; $list .= " @n ";
for (split(/\s+/, $list)) { /^$hostname\.\w+/ && ($FQDN = $_);}
$FQDN =~ s/\.$//; # for e.g. NWS3865
$DOMAINNAME = $FQDN;
$DOMAINNAME =~ s/^$hostname\.//;
}
# Architecture Dependence;
$UNISTD = $HAS_ALARM = $HAS_GETPWUID = $HAS_GETPWGID = $HAS_GETGRENT = 1;
# REQUIRED AS DEFAULTS
%SEVERE_ADDR_CHECK_DOMAINS = ('or.jp', +1, 'ne.jp', +1);
$REJECT_ADDR = 'root|postmaster|MAILER-DAEMON|msgs|nobody';
$REJECT_ADDR .= '|majordomo|listserv|listproc';
$REJECT_ADDR .= '|\S+\-subscribe|\S+\-unsubscribe|\S+\-help';
$SKIP_FIELDS = 'Received|Return-Receipt-To';
$ADD_URL_INFO = $ML_MEMBER_CHECK = $CHECK_MESSAGE_ID = $USE_FLOCK = 1;
$NOTIFY_MAIL_SIZE_OVERFLOW = 1;
$CHADDR_CONFIRMATION_KEYWORD = 'chaddr-confirm';
$UNSUBSCRIBE_CONFIRMATION_KEYWORD = 'unsubscribe-confirm';
# Envelope Filter
$FILTER_ATTR_REJECT_NULL_BODY = $FILTER_ATTR_REJECT_ONE_LINE_BODY = 1;
$FILTER_ATTR_REJECT_INVALID_COMMAND = 1;
### default distribution and command mode
$PERMIT_POST_FROM = $PERMIT_COMMAND_FROM = "members_only";
$REJECT_POST_HANDLER = $REJECT_COMMAND_HANDLER = "reject";
### fmlserv compat code; (e.g. a bit for umask and permissions ctrl)
if (-d "$DIR/../fmlserv") { # tricky ;-)
$USE_FML_WITH_FMLSERV = 1;
$GID = (stat("$DIR/../fmlserv"))[5];
}
### Security; default security level (mainly backward compat)
undef %Permit;
@DenyProcedure = ('library');
@HdrFieldsOrder = # rfc822; fields = ...; Resent-* are ignored;
('Return-Path', 'Received',
'Delivered-To', # for postfix, qmail
'Date', 'Posted', 'X-Posted', 'X-Original-Date',
'From', 'Reply-To', 'Subject', 'Sender',
'To', 'Cc', 'Errors-To', 'Message-Id', 'In-Reply-To',
'References', 'Keywords', 'Comments', 'Encrypted',
':XMLNAME:', ':XMLCOUNT:', 'X-MLServer',
'XRef', 'X-Stardate', 'X-ML-Info',
'X-Mailer', 'X-Dispatcher', 'X-Newsreader', 'User-Agent',
'Mail-Followup-To', # I-D now?
':body:', ':any:',
'X-Authentication-Warning',
'Mime-Version', 'Content-Type', 'Content-Transfer-Encoding',
'Content-ID', 'Content-Description', # RFC2045
'Precedence', 'Lines');
# Content Filtering Handler for MIME
@MailContentHandler = (); # Default: No filter
}
sub GetTime
{
@WDay = ('Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat');
@Month = ('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec');
($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time);
$Now = sprintf("%02d/%02d/%02d %02d:%02d:%02d",
($year % 100), $mon + 1, $mday, $hour, $min, $sec);
$MailDate = sprintf("%s, %d %s %d %02d:%02d:%02d %s",
$WDay[$wday], $mday, $Month[$mon],
1900 + $year, $hour, $min, $sec,
$isdst ? $TZONE_DST : $TZone);
# /usr/src/sendmail/src/envelop.c
# (void) sprintf(tbuf, "%04d%02d%02d%02d%02d", tm->tm_year + 1900,
# tm->tm_mon+1, tm->tm_mday, tm->tm_hour, tm->tm_min);
#
$CurrentTime = sprintf("%04d%02d%02d%02d%02d",
1900 + $year, $mon + 1, $mday, $hour, $min);
$PCurrentTime = sprintf("%04d%02d%02d%02d%02d%02d",
1900 + $year, $mon + 1, $mday, $hour, $min, $sec);
}
sub InitConfig
{
&SetDefaults;
&LoadConfig;
# XXX SetDefaults but works after &__LoadConfiguration, so defined here.
# 3.0.1 compatible with 3.0's "From: $MAIL_LIST" rejection
# disabled by fukachan (2000/06/19), PR8220 pointed out by MURASHITA Takuya
# &DEFINE_FIELD_LOOP_CHECKED('from');
# $FML for process table readability
if ($0 =~ m%^(.*)/(.*)%) { $ExecDir = $1; $FML = $2;}
# fml 4.0 modules
push(@INC, "$ExecDir/module");
push(@INC, "$ExecDir/module/CPAN");
push(@INC, "$ExecDir/module/Japanese");
push(@INC, "$ExecDir/module/fml-devel");
# a little configuration before the action
if (defined $FML_UMASK) {
$UMASK = $FML_UMASK;
}
elsif (defined $UMASK) {
;
}
elsif ($USE_FML_WITH_FMLSERV) {
$UMASK = 007; # rw-rw----
}
else {
$UMASK = 077; # rw-------
}
umask($UMASK);
defined $DEFAULT_DIR_MODE || ($DEFAULT_DIR_MODE = ($UMASK & 0777) ^ 0777);
### Against the future loop possibility
if (&AddressMatch($MAIL_LIST, $MAINTAINER)) {
&Log("DANGER! \$MAIL_LIST == \$MAINTAINER, STOP!");
exit 0;
}
# set architechture if not defined
if (! $COMPA_ARCH) {
if ($CPU_TYPE_MANUFACTURER_OS =~ /(sysv4|solaris2)/i) {
$COMPAT_ARCH = "SOLARIS2";
}
elsif ($CPU_TYPE_MANUFACTURER_OS =~ /windowsnt4$/i) {
$COMPAT_ARCH = "WINDOWS_NT4";
}
}
### Options
&SetOpts;
# load architecture dependent default
# here for command line options --COMPAT_ARCH
if ($COMPAT_ARCH) { require "sys/$COMPAT_ARCH/depend.pl";}
if ($DUMPVAR) { require 'dumpvar.pl'; &dumpvar('main');}
if ($debug) { require 'libdebug.pl';}
if ($Opt{"opt:b"} eq 'd') { &use('utils'); &daemon;} # become daemon;
# COMPATIBILITY
if ($COMPAT_CF1 || ($CFVersion < 2)) { &use('compat_cf1');}
if ($CFVersion < 3) { &use('compat_cf2');}
if ($COMPAT_FML15) { &use('compat_cf1'); &use('compat_fml15');}
if (!$TZone) { $TZone = '+0900';} # TIME ZONE
&GetTime; # Time, (may be for compatible codes)
push(@MAIL_LIST_ALIASES, @PLAY_TO);
unshift(@ARCHIVE_DIR, $ARCHIVE_DIR);
### Initialize DIR's and FILE's of the ML server
# FullPath-ed (FP)
local($s);
for (SPOOL_DIR,TMP_DIR,VAR_DIR,VARLOG_DIR,VARRUN_DIR,VARDB_DIR) {
&eval("\$s = \$$_; \$s =~ s#\$DIR/##g; \$s =~ s#$DIR/##g;");
&eval("\$FP_$_ = \"$DIR/\$s\";");
&eval("\$$_ =~ s#\$DIR/##g; \$$_ =~ s#\$DIR/##g;");
&eval("-d \$$_||&Mkdir(\$$_);");
}
if ($USE_DATABASE) {
for ($LOGFILE, $MGET_LOGFILE,
$SEQUENCE_FILE, $SUMMARY_FILE, $LOG_MESSAGE_ID) {
-f $_ || &Touch($_);
}
}
else {
for ($LOGFILE, $MEMBER_LIST, $MGET_LOGFILE,
$SEQUENCE_FILE, $SUMMARY_FILE, $LOG_MESSAGE_ID) {
-f $_ || &Touch($_);
}
}
### CFVersion 3
### DEFINE INTERNAL FLAG FOR THE USE $DIR/members or $DIR/actives ?
### $ML_MEMBER_CHECK is internal variable to indicate file relation
local($touch) = "${ACTIVE_LIST}_is_dummy_when_auto_regist";
if (&AutoRegistrableP) {
$ML_MEMBER_CHECK = 0; # backward
if (&NotUseSeparateListP) {
&Touch($touch) if ! -f $touch;
}
else {
unlink $touch if -f $touch;
}
}
else {
-f $ACTIVE_LIST || &Touch($ACTIVE_LIST);
unlink $touch if -f $touch;
}
if ($SUBJECT_TAG_TYPE) {
&use("tagdef");
&SubjectTagDef($SUBJECT_TAG_TYPE);
}
### END CFVersion 3
### misc
$LOG_MESSAGE_ID = $LOG_MESSAGE_ID || "$VARRUN_DIR/msgidcache";#important;
$LOG_MAILBODY_CKSUM = $LOG_MAILBODY_CKSUM || "$VARRUN_DIR/bodycksumcache";
$REJECT_ADDR_LIST = $REJECT_ADDR_LIST || "$DIR/spamlist";
$FML .= "[".(split(/\@/, $MAIL_LIST))[0]."]"; # For tracing Process Table
# initialize some arrays; if auto-regist is clear here, we reset;
&AdjustActiveAndMemberLists;
# since variables are defined in config.ph;
@NEWSYSLOG_FILES = @NEWSYSLOG_FILES ||
("$MSEND_RC.bak", "$MEMBER_LIST.bak", "$ACTIVE_LIST.bak");
# struct sockaddr { ;}
$STRUCT_SOCKADDR = $STRUCT_SOCKADDR || "S n a4 x8";
# &BackwardCompat;
&DEFINE_MODE('expire') if $USE_EXPIRE; # 2.1 release built-in expire
&DEFINE_MODE('archive') if $USE_ARCHIVE; # 2.1 release built-in archive;
&DEFINE_MODE('html') if $AUTO_HTML_GEN;
# command trap keywrod : '# ' ; in default, we not use it.
# XXX: "# command" is internal represention
# XXX: it is historical, so remove '# command' part if exist and possible.
$Envelope{'trap:ctk'} = &CompatFMLv1P ? '# ' : '';
# signal handling
$SIG{'ALRM'} = 'Tick';
$SIG{'INT'} = $SIG{'QUIT'} = $SIG{'TERM'} = 'SignalLog';
# MIME Content Handler(include backword compatible)
if ($AGAINST_HTML_MAIL ||
$HTML_MAIL_DEFAULT_HANDLER eq 'strip') {
&ADD_CONTENT_HANDLER('multipart/.*', 'text/plain', 'allow');
&ADD_CONTENT_HANDLER('multipart/.*', '.*/.*', 'strip');
&ADD_CONTENT_HANDLER('text/plain', '.*/.*', 'allow');
&ADD_CONTENT_HANDLER('!MIME', '.*/.*', 'allow');
} elsif ($HTML_MAIL_DEFAULT_HANDLER eq 'reject') {
&ADD_CONTENT_HANDLER('multipart/.*', 'text/plain', 'allow');
&ADD_CONTENT_HANDLER('multipart/.*', '.*/.*', 'reject');
&ADD_CONTENT_HANDLER('text/plain', '.*/.*', 'allow');
&ADD_CONTENT_HANDLER('!MIME', '.*/.*', 'allow');
}
# For example, $LOGFILE_SUFFIX = ".%C%y";
if ($LOGFILE_SUFFIX) {
use POSIX;
$LOGFILE .= strftime($LOGFILE_SUFFIX, localtime(time));
}
}
# one pass to cut out the header and the body
sub Parsing { &Parse;}
sub Parse
{
$0 = "${FML}: Parsing header and body <$LOCKFILE>";
local($bufsiz, $buf, $p, $maxbufsiz, $in_header);
$maxbufsiz = &ATOI($INCOMING_MAIL_SIZE_LIMIT) if $INCOMING_MAIL_SIZE_LIMIT;
undef $Envelope{'Body'};
$in_header = 1; # firstly header comes.
while ($p = sysread(STDIN, $_, 1024)) {
$bufsiz += $p;
if ($INCOMING_MAIL_SIZE_LIMIT && ($bufsiz > $maxbufsiz)) {
$Envelope{'trap:mail_size_overflow'} = 1;
last;
}
$Envelope{'Body'} .= $_;
if ($in_header) {
# separator between header and body is found!
if (($p = index($Envelope{'Body'}, "\n\n", 0)) > 0) {
$Envelope{'Header'} = substr($Envelope{'Body'}, 0, $p + 1);
$Envelope{'Body'} = substr($Envelope{'Body'}, $p + 2);
$in_header = 0;
}
}
}
# oops, header only mail ?! (2000/05/31 by fukachan)
if ($in_header) {
$Envelope{'Header'} = $Envelope{'Body'};
undef $Envelope{'Body'};
}
# Really? but check "what happen if no input is given?".
if ($bufsiz == 0) {
&Log("read 0 bytes, stop");
exit(0);
}
$Envelope{'tmp:bufsiz'} = $bufsiz;
}
# Phase 2 extract several fields
sub GetFieldsFromHeader
{
local($field, $value, @hdr, %hf);
local($s);
$0 = "${FML}: GetFieldsFromHeader <$LOCKFILE>";
# To ensure non exsistence
for (split(/\|/, $SKIP_FIELDS)) { &DELETE_FIELD($_);}
# pass all fields through
if ($SUPERFLUOUS_HEADERS || $PASS_ALL_FIELDS_IN_HEADER) {
$hdr_entry = join("|", @HdrFieldsOrder);
}
### Header Fields Extraction
$s = $Envelope{'Header'}."\n";
# $* = 0; # match one line
if ($s =~ /^From\s+(\S+)/is) {
# XXX NO REACH HERE (1999/10/27 by fukachan)
# $Envelope{'UnixFrom'} = $UnixFrom = $1;
$s =~ s/^From\s+.*//i;
}
$s = "\n".$s; # tricky
$s =~ s/\n(\S+):/\n\n$1:\n\n/g; # trick for folding and unfolding.
$s =~ s/^\n*//; # remove the first null lines;
@hdr = split(/\n\n/, $s);
while (@hdr) {
$_ = $field = shift @hdr;
last if /^[\s\n]*$/; # null field must be end
$value = shift @hdr; # not cut the first spaces of $value
print STDERR "FIELD>$field<\n >$value<\n" if $debug;
# Save Entry anyway. '.=' for multiple 'Received:'
$field =~ tr/A-Z/a-z/;
$hf{$field} = 1;
$Envelope{$field} .= $Envelope{$field} ? "\n${_}$value" : $value;
# e.g. ONLY multiple Received: are possible.
# "Cc: ..\n Cc: ..\n" also may exist
$Envelope{"h:$field"} .=
$Envelope{"h:$field"} ? "\n${_}$value" : $value;
next if /^($SKIP_FIELDS):/i;
# hold fields without in use_fields if $SUPERFLUOUS_HEADERS is 1.
if ($SUPERFLUOUS_HEADERS || $PASS_ALL_FIELDS_IN_HEADER) {
next if /^($hdr_entry)/i; # :\w+: not match
$Envelope{'Hdr2add'} .= "${_}$value\n";
}
}
### Anyway set all the fields (96/09/24) ###
local($f, $fc, $k, $v, $x);
while (($k, $v) = each %hf) {
$_ = &FieldCapitalize($k);
$Envelope{"h:$_"} = $Envelope{"h:$k"};
}
### fix Unix From
if (! $Envelope{'UnixFrom'}) { # == !$UnixFrom
$UnixFrom = $Envelope{'h:return-path:'} || $Envelope{'h:From:'} ||
"postmaster\@$FQDN";
$UnixFrom = $Unix_From = $Envelope{'UnixFrom'} =
&Conv2mailbox($UnixFrom, *Envelope);
}
}
# LATTER PART is to fix extracts
# Set variables to need special effects
sub FixHeaderFields
{
local(*e) = @_;
local($addr);
### MIME: IF USE_LIBMIME && MIME-detected;
if ($USE_MIME && $e{'Header'} =~ /=\?ISO\-2022\-JP\?/io) {
$e{'MIME'}= 1;
}
### $MAIL_LIST Aliases
$addr = "$e{'h:recent-to:'}, $e{'h:to:'}. $e{'h:cc:'}";
for (@MAIL_LIST_ALIASES) {
next unless $_;
if ($addr =~ /$_/i) { $MAIL_LIST = $_;}
}
$e{'h:Return-Path:'} = "<$MAINTAINER>"; # needed?
$e{'h:Precedence:'} = $PRECEDENCE || 'list';
# $e{'h:Lines:'} = $e{'nlines'}; now in CheckCurrentProc (97/12/07)
# Date: field type definition
if ($DATE_TYPE eq 'original-date') {
$e{'h:Date:'} = $e{'h:date:'};
}
elsif ($DATE_TYPE eq 'received-date+x-posted') {
$e{'h:Date:'} = $MailDate;
$e{'h:X-Posted:'} = $e{'h:date:'} || $e{'h:Date:'};
}
elsif ($DATE_TYPE eq 'received-date+x-original-date') {
$e{'h:Date:'} = $MailDate;
$e{'h:X-Original-Date:'} = $e{'h:date:'} || $e{'h:Date:'};
}
elsif (($DATE_TYPE eq 'received-date') ||
($DATE_TYPE eq 'received-date+posted') ||
(!$DATE_TYPE)) { # default (backward)
$e{'h:Date:'} = $MailDate;
$e{'h:Posted:'} = $e{'h:date:'} || $e{'h:Date:'};
}
# Some Fields need to "Extract the user@domain part"
# Addr2Reply: is used to pass to sendmail as the recipient
$From_address = &Conv2mailbox($e{'h:from:'}, *e);
$e{'macro:x'} = $e{'tmp:x'};
&Log("Gecos [$e{'macro:x'}]") if $debug;
# XXX should we nuke $COMMAND_RETURN_ADDR_POLICY ?
if ($COMMAND_RETURN_ADDR_POLICY eq 'from' ||
$MESSAGE_RETURN_ADDR_POLICY eq 'from') {
$e{'Addr2Reply:'} = $From_address;
}
else { # $MESSAGE_RETURN_ADDR_POLICY eq 'reply-to'
$e{'Addr2Reply:'} = &Conv2mailbox($e{'h:reply-to:'},*e)||$From_address;
}
# KAKUSHI(SECRET) OPTION :) (UNDER DEVELOPMENT)
# use Return-Path: as the sender for authentication
if ($SENDER_AUTH_TYPE eq 'strict-envelope-from') {
$_ = &Conv2mailbox($Envelope{'h:return-path:'}, *e);
if ($_) {
$From_address = $_;
}
else {
&Log("\$SENDER_AUTH_TYPE eq 'strict-envelope-from'");
&Log("INVALID Return-Path:<$_>");
&Mesg(*e, "YOU ARE NOT A MEMBER!");
&Mesg(*e, $NULL, 'not_member');
$DO_NOTHING = 1;
}
}
elsif ($SENDER_AUTH_TYPE eq 'envelope-from-or-from') {
for ($UnixFrom, $From_address) {
&MailListMemberP($_) && ($From_address = $_, last);
}
}
# To: $MAIL_LIST for readability;
# &RewriteField(*e, 'Cc') unless $NOT_REWRITE_CC;
if ($REWRITE_TO < 0) {
; # pass through for the use of this flag when $CFVersion < 3.;
}
elsif ($CFVersion < 3.1) { # 3.1 is 2.1A#8 (1997/10/14)
$REWRITE_TO = $NOT_REWRITE_TO ? 0 : 1; # 2.1 release default;
}
&Log("REWRITE_TO $REWRITE_TO") if $debug;
if ($REWRITE_TO == 2) {
$e{'h:To:'} = "$MAIL_LIST $ML_FN"; # force the original To: to pass
}
elsif ($REWRITE_TO == 1) {
# To: $MALI_LIST, plus original To: ...
$e{'h:To:'} = "$MAIL_LIST $ML_FN";
&RewriteField(*e, 'To');
}
elsif ((!$REWRITE_TO) || $REWRITE_TO < 0) {
; # do nothing, pass through
}
# Subject:
# 1. remove [Elena:id]
# 2. while ( Re: Re: -> Re: ) (THIS IS REQUIED ANY TIME, ISN'T IT? but...)
# Default: not remove multiple Re:'s),
# which actions may be out of my business
if ($_ = $e{'h:Subject:'}) {
if ($STRIP_BRACKETS ||
$SUBJECT_FREE_FORM_REGEXP || $SUBJECT_HML_FORM) {
if ($e{'MIME'}) { # against cc:mail ;_;
&use('MIME');
&StripMIMESubject(*e);
}
else { # e.g. Subject: [Elena:003] E.. U so ...;
print STDERR "IN: $_\n" if $debug;
$e{'h:Subject:'} = &StripBracket($_);
print STDERR "OUT: $e{'h:Subject:'}\n" if $debug;
}
}
# Even if pass through, always strip of Re:*
else {
$e{'h:Subject:'} = &CutOffRe($_);
}
}
# Obsolete Errors-to:, against e.g. BBS like a nifty
if ($USE_ERRORS_TO) {
$e{'h:Errors-To:'} = $ERRORS_TO || $MAINTAINER;
}
else { # delete obsolete fields;
&DELETE_FIELD('Errors-To');
}
# Set Control-Address for reply, notify and message
$e{'CtlAddr:'} = &CtlAddr;
### USER MACROS: &COPY_FIELD(old, new);
local($old, $new);
while (($old,$new) = each %HdrFieldCopy) {
&Debug("COPY_FIELD: \$e{\"h: $old => $new\"}") if $debug;
$e{"h:$new:"} = $e{"h:$old:"};
$e{"h:$new:"} =~ s/\n$old:/\n$new:/gi;
}
}
sub FieldCapitalize
{
local($_) = @_;
s/^(\w)/ $x = $1, $x =~ tr%a-z%A-Z%, $x/e;
s/(\-\w)/$x = $1, $x =~ tr%a-z%A-Z%, $x/eg;
$_ =~ s/^X-ML-/X-ML-/i; # X-ML- is an exception. to avoid dup of X-M{L,;}
$_;
}
sub StripBracket
{
local($_) = @_;
local($pat);
if ($SUBJECT_FREE_FORM_REGEXP) {
$pat = $SUBJECT_FREE_FORM_REGEXP;
}
else { # default;
# pessimistic ?
if (! $BRACKET) { ($BRACKET) = split(/\@/, $MAIL_LIST);}
$pat = "\\[$BRACKET:\\d+\\]";
}
# cut out all the e.g. [BRACKET:\d] form;
s/$pat//g;
$_ = &CutOffRe($_);
}
sub CutOffRe
{
local($_) = @_;
local($pattern);
# Re: Re2: Re[2]: Re(2): Re^2: Re*2:
$pattern = 'Re:|Re\d+:|Re\[\d+\]:|Re\(\d+\):|Re\^\d+:|Re\*\d+:';
s/^(\s*($pattern)\s*)+/Re: /oi;
if ($LANGUAGE eq 'Japanese') {
require("module/$LANGUAGE/liblangdep.pl");
$_ = &Japanese'CutOffReReRe($_);
}
$_;
}
sub CheckCurrentProc
{
local(*e, $ccp_mode) = @_;
# log
&Log("read $e{'tmp:bufsiz'} bytes") if $debug_fml_org;
undef $e{'tmp:bufsiz'};
### SubSection: Log socket connection info
&eval("&use('kernsubr2'); &GetPeerInfo;") if $LOG_CONNECTION;
### SubSection: Check Body Contents (For Command Mode)
local($limit, $p, $buf, $boundary, $nclines, $cc);
### SubSection: MIME info
# MIME skip mode; against automatic-MIME-encapsulated fool MUA
if ($e{'h:content-type:'} =~ /boundary=\"(.*)\"/i ||
$e{'h:content-type:'} =~ /boundary=\s*(\S+)/i) {
$boundary = $1;
$boundary = "--$boundary";
$e{'MIME:boundary'} = $boundary;
}
elsif ($e{'h:content-type:'} =~ /multipart/i) {
&Log("cannot get boundary string of Content-Type");
&Log("Content-Type: $e{'h:content-type:'}");
}
### SubSection: Check command in mail body
# the range to scan
$limit = $GUIDE_CHECK_LIMIT > $COMMAND_CHECK_LIMIT ?
$GUIDE_CHECK_LIMIT : $COMMAND_CHECK_LIMIT;
## QMAIL command hook
## dot-qmail(5) ~alias/.uja-default emulates uja-help@domain ("-> #help")
if ($USE_DOT_QMAIL_EXT &&
(!&AddressMatch($MAIL_LIST, $ENV{'RECIPIENT'}))) {
&Log("sets in dot-qmail-ext") if $debug_qmail;
&use('qmail');
&DotQmailExt(*Envelope);
}
# search the location of $limit's "\n";
$limit += 10; # against MIME
$p = 0;
while ($limit-- > 0) {
if (index($e{'Body'}, "\n", $p + 1) > 0) {
$p = index($e{'Body'}, "\n", $p + 1);
}
else {
last;
}
}
# +1 for the last "\n";
$buf = substr($e{'Body'}, 0, $p > 0 ? $p+1 : 1024);
# check only the first $limit lines.
local($found, $mime_skip);
for (split(/\n/, $buf)) {
print STDERR "INPUT BUF> $_\n" if $debug;
# subscribe trap
# XXX: "# command" is internal represention
# XXX: remove '# command' part if exist
if (/^(\s*|\#\s*)$CONFIRMATION_SUBSCRIBE\s+/i) {
$e{'mode:req:subscribe'} = 1;
$e{'buf:req:subscribe'} .= $_."\n";
}
if ($CHADDR_AUTH_TYPE eq 'confirmation' &&
(/^(\s*|\#\s*)$CHADDR_KEYWORD\s+/i)) {
$e{'mode:req:chaddr'} = 1;
$e{'buf:req:chaddr'} .= $_."\n";
}
# chaddr-confirm trap (may be with citatin e.g. ">")
if ($CHADDR_AUTH_TYPE eq 'confirmation' &&
/$CHADDR_CONFIRMATION_KEYWORD\s+\S+/i) {
$e{'mode:req:chaddr-confirm'} = 1;
$e{'buf:req:chaddr-confirm'} .= $_."\n";
}
# confirm trap (may be with citatin e.g. ">")
elsif (/$CONFIRMATION_KEYWORD\s+\S+/i) {
$e{'mode:req:confirm'} = 1;
$e{'buf:req:confirm'} .= $_."\n";
}
# unsubscribe-confirm ID
if (/($UNSUBSCRIBE_CONFIRMATION_KEYWORD\s+\S+.*)/i) {
$e{'buf:req:unsubscribe-confirm'} .= $1."\n";
$e{'mode:req:unsubscribe-confirm'} = 1;
}
if ($boundary) { # if MIME skip mode;
if ($_ eq $boundary) { $found++; $mime_skip++; next;}
if (/^Content-Type:/i && $mime_skip) { next;}
# skip the null line after the first MIME separator
if ($mime_skip) { $mime_skip = 0; next;}
}
# skip before the first MIME boundary
next if $boundary && !$found;
$cc++;
print STDERR " SCAN BUF> $_ ($cc line)\n\n" if $debug;
# DO NOT "skip useless checks (2.23?)"
# which we uses in the "guide" request check from a stranger.
# if (! $e{'trap:ctk'}) {
# print STDERR " -skip fml rel. 1 compatible scan\n" if $debug;
# next;
# }
# Guide Request from the unknown
if ($GUIDE_CHECK_LIMIT-- > 0) {
$e{'mode:req:guide'} = 1 if /^\#\s*$GUIDE_KEYWORD\s*$/i;
# accept 'guide' under --ctladdr;
$e{'mode:req:guide'} = 1
if $e{'mode:ctladdr'} && /^\s*$GUIDE_KEYWORD\s*$/i;
}
# Command or not is checked within the first 3 lines.
# '# help\s*' is OK. '# guide"JAPANESE"' & '# JAPANESE' is NOT!
# BUT CANNOT JUDGE '# guide "JAPANESE CHARS"' SYNTAX;-);
if ($COMMAND_CHECK_LIMIT-- > 0) {
$e{'mode:uip'} = 'on' if /^\#\s*[\w\-]+\s|^\#\s*[\w\-]+$/;
$e{'mode:uip:chaddr'} = $_
if /^\#\s*($CHADDR_KEYWORD)\s+/i;
$e{'mode:uip:chaddr-confirm'} = $_
if /^\#\s*($CHADDR_CONFIRMATION_KEYWORD)\s+/i;
}
$nclines++ if /^\#/o; # the number of command lines
}
### close(STDIN); # close(STDIN) prevents open2, really?
$e{'nlines'} = ($e{'Body'} =~ tr/\n/\n/);
$e{'nclines'} = $nclines;
$e{'size'} = $bufsiz;
$e{'h:Lines:'} = $e{'nlines'};
### SubSection: special trap
return 0 if $CheckCurrentProcUpperPartOnly;
return 0 if $ccp_mode eq 'upper_part_only';
### SubSection: MailBody Size
if ($e{'trap:mail_size_overflow'}) {
&use('error');
&NotifyMailSizeOverFlow(*e);
if ($ANNOUNCE_MAIL_SIZE_OVERFLOW) {
&AnnounceMailSizeOver(*e); # call &Distribute;
}
else {
$DO_NOTHING = 1;
return $NULL;
}
}
# Against a lot of mails for MIME partial, e.g. Outlook
# Content-Type: message/partial; number=1; total=6; ...
if ($e{'h:content-type:'} =~ /\/partial\s*;/ &&
$INCOMING_MAIL_SIZE_LIMIT) {
local($n, $total, $bufsiz);
$e{'h:content-type:'} =~ s/number=(\d+)/$n = $1/e;
$e{'h:content-type:'} =~ s/total=(\d+)/$total = $1/e;
$bufsiz = length($Envelope{'Body'}) * $total;
if ($bufsiz > &ATOI($INCOMING_MAIL_SIZE_LIMIT)) {
&Log("reject for too large size mail");
&Log("partial message's <$n/$total> total mail size seems too large");
&Log("evaluated whole size $bufsiz > \$INCOMING_MAIL_SIZE_LIMIT[$INCOMING_MAIL_SIZE_LIMIT]");
# WARNING in n ==1 partial case.
if ($n == 1 && $NOTIFY_MAIL_SIZE_OVERFLOW) {
&use('error');
&NotifyMailSizeOver;
}
if ($n == 1 && $ANNOUNCE_MAIL_SIZE_OVERFLOW) {
&use('error');
&AnnounceMailSizeOver(*e); # call &Distribute;
}
else {
$DO_NOTHING = 1;
}
}
else {
&Log("partial message but the whole size seems enough small")
if $debug;
}
}
### SubSection: Access Control based on address
## WE SHOULD REJCECT "CANNOT IDENTIFIED AS PERSONAL" ADDRESSES;
## In addition, we check another atack possibility;
## e.g. majorodmo,listproc,list-subscribe <-> fml-ctl
if ($REJECT_ADDR && $From_address =~ /^($REJECT_ADDR)\@(\S+)/i) {
local($addr, $domain) = ($1, $2);
&Log("reject mail from $addr\@$domain");
&WarnE("reject mail from $addr\@$domain",
"reject mail from $addr\@$domain\n");
$DO_NOTHING = 1;
return 0;
}
# XXX reject all "From: MAIL_LIST" mails (3.0)
# XXX fix for 3.0.1
# XXX controllable by %LOOP_CHECKED_HDR_FIELD.
if (%LOOP_CHECKED_HDR_FIELD) {
my($f, $v);
for $f (keys %LOOP_CHECKED_HDR_FIELD) {
next unless $LOOP_CHECKED_HDR_FIELD{$f};
if ($v = $e{"h:${f}:"}) {
$v = &Conv2mailbox($v);
if (&LoopBackWarn($v)) {
&Log("$f: <$v> may cause loop. rejected");
&WarnE("reject mail $f:<$v>",
"rejected since '$f' header\n".
"may cause mail loop.\n".
"${f}: ".
$e{"h:${f}:"}.
"\n");
$DO_NOTHING = 1;
return 0;
}
}
}
}
## security level (?)
while (($k, $v) = each %SEVERE_ADDR_CHECK_DOMAINS) {
print STDERR "/$k/ && ADDR_CHECK_MAX += $v\n" if $debug;
($From_address =~ /$k/) && ($ADDR_CHECK_MAX += $v);
}
# AGAINST SPAM MAILS
if (-f $REJECT_ADDR_LIST) {
if (&RejectAddrP($From_address) ||
&RejectAddrP($UnixFrom)) {
$s="Reject spammers: UnixFrom=[$UnixFrom], From=[$From_address]";
&WarnE("Spam mail from a spammer is rejected $ML_FN",
"Reject Spammers:\n".
" UnixFrom\t$UnixFrom\n From\t\t$From_address\n");
&Log($s);
$DO_NOTHING = 1;
return 0;
}
}
### SubSection: misc
### For CommandMode Check(see the main routine in this flie)
$e{'trap:rcpt_fields'} = $e{'h:to:'} || $e{'h:apparently-to:'};
$e{'trap:rcpt_fields'} .= ", $e{'h:Cc:'}, ";
$e{'trap:rcpt_fields'} =~ s/\n(\s+)/$1/g;
# SUBJECT: GUIDE SYNTAX
if ($USE_SUBJECT_AS_COMMANDS && $e{'h:Subject:'}) {
local($_) = $e{'h:Subject:'};
s/^\s*//;
$e{'mode:req:guide'}++ if /^\#\s*$GUIDE_KEYWORD\s*$/i;
$e{'mode:uip'} = 'on' if /^\#\s*[\w\-]+\s|^\#\s*[\w\-]+$/;
$e{'mode:req:guide'}++
if $COMMAND_ONLY_SERVER && /^\s*$GUIDE_KEYWORD\s*$/i;
$e{'mode:uip'} = 'on'
if $COMMAND_ONLY_SERVER && /^\s*[\w\-]+\s|^\s*[\w\-]+$/;
}
# ? for --distribute, here and again in &MLMemberCheck;
&AdjustActiveAndMemberLists;
### SubSection: debug info dump
if ($debug) { &eval(&FieldsDebug, 'FieldsDebug');}
### SubSection: Mail Loop Check
## LOOP CHECK PHASE 1: Message-Id
if ($CHECK_MESSAGE_ID && &DupMessageIdP) { exit 0;}
## LOOP CHECK PHASE 2
# now before flock();
if ((! $NOT_USE_UNIX_FROM_LOOP_CHECK) &&
&AddressMatch($UnixFrom, $MAINTAINER)) {
&Log("WARNING: UNIX FROM Loop[$UnixFrom == $MAINTAINER]");
&WarnE("WARNING: UNIX FROM Loop",
"UNIX FROM[$UnixFrom] == MAINTAINER[$MAINTAINER]\n\n");
exit 0;
}
### SubSection: Address Test Mode; (Become Test Mode)
if ($Opt{"opt:b"} eq 't') {
$DO_NOTHING = 1; &Log("Address Test Mode:Do nothing");
}
### SubSection: Crosspost emulation
# Check crosspost in To: and Cc:
if ($USE_CROSSPOST) { &use('crosspost');}
}
# We REWRITED To: to "To: MAIL_LIST" FOR MORE READABILITY;
# Check the To: and overwrite it;
# if To: has $MAIL_LIST, ok++; IF NOT, add $MAIL_LIST to To:
sub RewriteField
{
local(*e, $ruleset) = @_;
local($f) = 'RuleSetTo' if $ruleset eq 'To';
$f ? &$f(*e) : &Log("RewriteField: unknown ruleset $ruleset");
}
# 2000/11/17 version is modified to use Mail::Address.pm
# based on the patch by OGAWA Kunihiko <kuni@edit.ne.jp>
sub RuleSetTo
{
local(*e) = @_;
local($ok, $match, $addr, $x_addr, $ml, $buf, $to);
local(@ml) = ($MAIL_LIST, @MAIL_LIST_ALIASES); # PLAY_TO Trick;
eval "require Mail::Address; Mail::Address->import();";
# if fails, call fml 3.0 compatible routine.
if ($@ ne '') {
&Log("WARN: Mail::Address.pm not works well");
&Log("disable RuleSetTo function");
return $NULL;
}
# search $MALI_LIST (+ aliases) contained in To: ?
$to = $e{'h:to:'};
$to =~ s/\s*To: /, /gi;
for $addr (Mail::Address->parse($to)) {
$x_addr = $addr->format;
$addr = $addr->address;
$match = 0;
# match one of $MALI_LIST ?
for $ml (@ml) {
# ignore $MALI_LIST (or aliases) addresses to avoid noisy To;)
if (&AddressMatch($addr, $ml)) { $ok++; $match = 1;}
}
# IF NOT match one of $MAIL_LIST,
# gobble not $MALI_LIST address to $buf
if (! $match) {
$buf .= $buf ? ", ". $addr : $addr;
&Log("RuleSetTo: buf = {$buf}") if $debug;
}
}
if ($buf) {
$e{'h:To:'} .= $e{'h:To:'} ? "\n\t,".$buf : $buf;
}
}
# Expand mailbox in RFC822
# From_address is user@domain syntax for e.g. member check, logging, commands
# return "1#mailbox" form ?(anyway return "1#1mailbox" 95/6/14)
#
# macro:x is moved to FixHeaderFields (97/05/07 fukui@sonic.nm.fujitsu.co.jp)
#
# 2000/11/17 version is modified to use Mail::Address.pm
# based on the patch by OGAWA Kunihiko <kuni@edit.ne.jp>
sub Conv2mailbox
{
local($mb, *e) = @_; # original string
local($addr);
eval "require Mail::Address; Mail::Address->import();";
# if fails, call fml 3.0 compatible routine.
if ($@ ne '') {
&Log($@);
&Log("WARN: Mail::Address.pm not works well");
return &__Conv2mailbox30($mb, *e);
}
# NULL is given, return NULL
($mb =~ /^\s*$/) && (return $NULL);
($addr) = (Mail::Address->parse($mb))[0];
return $NULL unless $addr;
$e{'tmp:x'} = $addr->phrase . $addr->comment;
return $addr->address;
}
sub __Conv2mailbox30
{
local($mb, *e) = @_; # original string
# return NULL if addr does not contain @. ?
# return $NULL unless $mb =~ /\@/;
# $mb = &Strip822Comments($mb);
# NULL is given, return NULL
($mb =~ /^\s*$/) && (return $NULL);
# RFC822 unfolding and cut the first SPACE|HTAB;
$mb =~ s/\n(\s+)/$1/g;
$mb =~ s/^\s*//;
# Hayakawa Aoi <Aoi@aoi.chan.panic>
if ($mb =~ /^\s*(.*)\s*<(\S+)>.*$/io) { $e{'tmp:x'} = $1; return $2;}
# Aoi@aoi.chan.panic (Chacha Mocha no cha nu-to no 1)
if ($mb =~ /^\s*(\S+)\s*\((.*)\)$/io || $mb =~ /^\s*(\S+)\s*(.*)$/io) {
$e{'tmp:x'} = $2, return $1;
}
# Aoi@aoi.chan.panic
return $mb;
}
# When just guide request from unknown person, return the guide only
# change reply-to: for convenience
sub GuideRequest
{
local(*e) = @_;
local($ap);
if ($debug) { @c=caller; &Log("GuideRequest called from $c[2]");}
&Log("Guide request");
$e{'GH:Reply-To:'} = $e{'CtlAddr:'};
&SendFile($e{'Addr2Reply:'}, "Guide $ML_FN", $GUIDE_FILE);
}
# MAIL_LIST == CONTROL_ADDRESS or !CONTROL_ADDRESS ?
# ATTENTION!
# if cf == 3, !$CONTROL_ADDRESS IS JUST "distribute only"
# if cf < 2, !$CONTROL_ADDRESS => Command($MAIL_LIST==$CONTROL_ADDRESS)
sub CompatFMLv1P
{
local($ml) = split(/\@/, $MAIL_LIST);
local($ca) = split(/\@/, $CONTROL_ADDRESS);
if ($CFVersion < 3) { return &CF2CompatFMLv1P($ca, $ml);}
# Version 3, criterion is only "MAIL_LIST == CONTROL_ADDRESS"
$ml eq $ca && return 1;
$MAIL_LIST eq $CONTROL_ADDRESS && return 1;
# Version 3, compat mode for before FML 2.1
$MAIL_LIST_ACCEPT_COMMAND && return 1;
0;
}
# Distribute mail to members (fml.pl -> libdist.pl)
sub Distribute
{
local(*e, $mode, $compat_hml) = @_;
local($ml) = (split(/\@/, $MAIL_LIST))[0];
# Japanese specific: convert hankaku to zenkaku
if ($USE_HANKAKU_CONVERTER) {
if ($LANGUAGE eq 'Japanese') {
require("module/$LANGUAGE/libhankaku2zenkaku.pl");
eval &FixJapaneseMDChars(*e);
&Log($@) if $@;
}
}
# Filtering mail body from members but not check other cases
# e.g. null body subscribe request in "no-keyword" case
if ($USE_DISTRIBUTE_FILTER) {
&EnvelopeFilter(*e, 'distribute');
return $NULL if $DO_NOTHING;
}
# check duplication baesd on mailbody MD5 cksum cache
if ($CHECK_MAILBODY_CKSUM) {
&use('cksum');
if (&CheckMailBodyCKSUM(*e)) {
# looped !
$DO_NOTHING = 1;
return $NULL;
}
else {
# not looped ! O.K. now cache on for the future
&CacheMailBodyCksum(*e);
}
}
# Security: Mail Traffic Information
if ($USE_MTI) {
&use('mti');
&MTICache(*e, 'distribute');
return $NULL if &MTIError(*e);
}
if ($debug) { @c = caller; &Log("Distritute called from $c[2] ");}
if ($mode eq 'permit from members_only') {
$Rcsid .= "; post only (only members can post)";
}
elsif ($mode eq 'permit from anyone') {
$Rcsid .= "; post only (anyone can post)";
}
elsif ($mode eq 'permit from moderator') {
$Rcsid =~ s/^(.*)(\#\d+:\s+.*)/$1."(moderated mode)".$2/e;
undef $e{'h:approval:'}; # delete the passwd entry;
undef $e{'h:Approval:'}; # delete the passwd entry;
}
### NOT REMOVE FOR BACKWARD?
else {
$Rcsid .= "; post + commands (members only)"; # default ;
}
if ($MAIL_LIST eq $CONTROL_ADDRESS) {
$Rcsid =~ s/post only (from.*)/post $1 + commands/;
}
# Dabasase access: dump recipients
if ($USE_DATABASE) {
my (%mib, %result, %misc, $error);
&DataBaseMIBPrepare(\%mib, 'dump_active_list');
&DataBaseCtl(\%Envelope, \%mib, \%result, \%misc);
&Log("fail to dump active list") if $mib{'error'};
return $NULL if $mib{'error'};
# tricky but effective
# we push cache file to recipient lists, so that
# @ACTIVE_LIST = ($ACTIVE_LIST, $mib{'_cache_file'});
push(@ACTIVE_LIST, $mib{'_cache_file'}) if -f $mib{'_cache_file'};
&Log("ACTIVE = ( @ACTIVE_LIST )") if $debug;
}
require 'libdist.pl';
&DoDistribute(*e);
}
sub RunStartHooks
{
$0 = "${FML}: RunStartHooks <$LOCKFILE>";
# additional before action
$START_HOOK && &eval($START_HOOK, 'Start hook');
for (keys %FmlStartHook) {
print STDERR "Run StartHook $_ -> $FmlStartHook{$_}\n" if $debug;
next unless $FmlStartHook{$_};
$0 = "${FML}: Run FmlStartHook [$_] <$LOCKFILE>";
&eval($FmlStartHook{$_}, "Run FmlStartHook [$_]");
}
}
sub RunEndHooks
{
$0 = "${FML}: RunEndHooks <$LOCKFILE>";
# additional before action
$END_HOOK && &eval($END_HOOK, 'END_HOOK');
for (keys %FmlEndHook) {
print STDERR "Run EndHook $_ -> $FmlEndHook{$_}\n" if $debug;
next unless $FmlEndHook{$_};
$0 = "${FML}: Run FmlEndHook [$_] <$LOCKFILE>";
&eval($FmlEndHook{$_}, "Run FmlEndHook [$_]");
}
}
# Lastly exec to be exceptional process
sub ExExec { &RunHooks(@_);}
sub RunExitHooks
{
local($s);
$0 = "${FML}: RunExitHooks <$LOCKFILE>";
# FIX COMPATIBILITY
$FML_EXIT_HOOK .= $_PCB{'hook', 'str'};
if ($s = $FML_EXIT_HOOK) {
print STDERR "\nmain::eval >$s<\n\n" if $debug;
$0 = "${FML}: Run Hooks(eval) <$LOCKFILE>";
&eval($s, 'Run Hooks:');
}
for (keys %FmlExitHook) {
print STDERR "Run hooks $_ -> $FmlExitHook{$_}\n" if $debug;
next unless $FmlExitHook{$_};
$0 = "${FML}: Run FmlExitHook [$_] <$LOCKFILE>";
&eval($FmlExitHook{$_}, "Run FmlExitHook [$_]");
}
}
sub ExecNewProcess
{
$0 = "${FML}: Run New Process <$LOCKFILE>";
$FML_EXIT_PROG .= $_PCB{'hook', 'prog'};
if ($FML_EXIT_PROG) { &use('kernsubr2'); &__ExecNewProcess;}
}
sub SpawnProcess
{
local(@xargv) = @_; &use('kernsubr2'); &__SpawnProcess(@xargv);
}
####### Section: Member Check
# fix array list;
#
# files to check for the authentication 96/09/17
# @MEMBER_LIST = ($MEMBER_LIST) unless @MEMBER_LIST;
sub AdjustActiveAndMemberLists
{
local($f, $status);
if ($status = &AutoRegistrableP) {
# automatic asymmetric registration
# XXX: fml 2.x auto_asymmetric_regist fakes "only member list".
if ($status eq "auto_asymmetric_regist") {
$FILE_TO_REGIST = $FILE_TO_REGIST || $ACTIVE_LIST;
&Touch($FILE_TO_REGIST) unless -f $FILE_TO_REGIST;
}
# XXX: fml 2.x auto_regist uses only member file.
# XXX: fml 3.x auto_subscribe uses actives and members.
elsif (&NotUseSeparateListP) {
# XXX: this block is always true in 2.x but false in 3.x.
$ACTIVE_LIST = $MEMBER_LIST;
for (@MEMBER_LIST) {
grep(/$_/, @ACTIVE_LIST) || push(@ACTIVE_LIST, $_);
}
}
}
grep(/$MEMBER_LIST/, @MEMBER_LIST) || push(@MEMBER_LIST, $MEMBER_LIST);
grep(/$ACTIVE_LIST/, @ACTIVE_LIST) || push(@ACTIVE_LIST, $ACTIVE_LIST);
if (($f = $FILE_TO_REGIST) && -f $FILE_TO_REGIST) {
grep(/$f/, @MEMBER_LIST) || push(@MEMBER_LIST, $f);
grep(/$f/, @ACTIVE_LIST) || push(@ACTIVE_LIST, $f);
}
elsif (-f $FILE_TO_REGIST) {
&Log("ERROR: \$FILE_TO_REGIST NOT EXIST");
}
# ONLY IF EXIST ALREADY, add the admin list (if not, noisy errors...;-)
if (($f = $ADMIN_MEMBER_LIST) && -f $ADMIN_MEMBER_LIST) {
grep(/$f/, @MEMBER_LIST) || push(@MEMBER_LIST, $f);
}
}
# if found, return the non-null file name;
sub DoMailListMemberP
{
local($addr, $type) = @_;
local($file, @file, %file);
# DataBase Access
if ($USE_DATABASE) {
&use('databases');
my ($action) = $type eq 'm' ? 'member_p' : 'active_p';
# try to access database to verify the server is alive
# and try to verify the address is member or not.
my (%mib, %result, %misc, $error);
&DataBaseMIBPrepare(\%mib, $action, {'address' => $addr});
&DataBaseCtl(\%Envelope, \%mib, \%result, \%misc);
# if search fails for $MEMBER_LIST,
if ( !$mib{'_result'} && ($type eq 'm')) {
# retry search in $ADMIN_MEMBER_LIST
my (%xmib, %result, %misc, $error);
&DataBaseMIBPrepare(\%xmib,'admin_member_p',{'address' => $addr});
&DataBaseCtl(\%Envelope, \%xmib, \%result, \%misc);
# search fails for both $MEMBER_LIST and $ADMIN_MEMBER_LIST
if ($xmib{'error'}) {
return 0;
}
else {
$mib{ _result } = $xmib{ _result };
}
}
# if search fails for $ACTIVE_LIST, return here ASAP.
elsif ($mib{'error'}) {
return 0;
}
$Envelope{'database:cache:$action'} = 1 if $mib{'_result'};
return $mib{'_result'};
}
# XXX not reach here when you use $USE_DATABASE
$SubstiteForMemberListP = 1;
@file = $type eq 'm' ? @MEMBER_LIST : @ACTIVE_LIST;
for $file (@file) {
next unless -f $file;
next if $file{$file}; $file{$file} = 1; # uniq
# prohibit ordinary people operations (but should permit probing only)
# NOT CHECK OUTSIDE "amctl" procedures in &Command;
# WITHIN "amctl"
# check also $ADMIN_MEMBER_LIST if IN ADMIN MODE
# ignore $ADMIN_MEMBER_LIST if NOT IN ADMIN MODE
if ($e{'mode:in_amctl'} && # in "amctl" library
($file eq $ADMIN_MEMBER_LIST) &&
(! $e{'mode:admin'})) { # called NOT in ADMIN MODE
next;
}
if ($debug && -f $file) {
&Debug(" DoMailListMemberP(\n\t$addr\n\tin $file);\n");
}
if (-f $file && &Lookup($addr, $file)) {
&Debug("+++Hit: $addr in $file") if $debug;
$SubstiteForMemberListP = 0;
return $file;
}
}
$SubstiteForMemberListP = 0;
if ($IDENTIFY_MIGRATING_DOMAIN) {
# avoid recursive call under libmgrdom.pl
return $NULL if $Envelope{'mode:in_mgrdom'};
&use('mgrdom');
&MgrdomConsider($addr, $type);
}
else {
$NULL;
}
}
sub MailListMemberP { return &DoMailListMemberP(@_, 'm');}
sub MailListActiveP { return &DoMailListMemberP(@_, 'a');}
sub MailListAdminMemberP
{
my ($addr) = @_;
# DataBase Access
if ($USE_DATABASE) {
&use('databases');
my (%mib, %result, %misc, $error);
&DataBaseMIBPrepare(\%mib, 'admin_member_p', {'address' => $addr});
&DataBaseCtl(\%Envelope, \%mib, \%result, \%misc);
if ($mib{'error'}) { return 0;}
$Envelope{'database:cache:admin_member_p'} = 1 if $mib{'_result'};
return $mib{'_result'};
}
else {
&Lookup($addr, $ADMIN_MEMBER_LIST);
}
}
sub NonAutoRegistrableP { ! &AutoRegistrableP;}
sub AutoRegistrableP
{
if ($REJECT_POST_HANDLER =~ /auto\S+regist/ &&
$REJECT_COMMAND_HANDLER eq 'auto_asymmetric_regist') {
&Log("These HANDLER configuration may not work well");
}
if ($Envelope{'mode:ctladdr'} &&
($REJECT_POST_HANDLER eq 'auto_asymmetric_regist' ||
$REJECT_COMMAND_HANDLER eq 'auto_asymmetric_regist')) {
"auto_asymmetric_regist";
}
elsif ($Envelope{'mode:ctladdr'} &&
($REJECT_POST_HANDLER eq 'auto_subscribe' ||
$REJECT_COMMAND_HANDLER eq 'auto_subscribe')) {
"auto_subscribe";
}
elsif ($REJECT_COMMAND_HANDLER =~ /auto_regist/i ||
$REJECT_COMMAND_HANDLER =~ /auto_subscribe/i ||
$REJECT_COMMAND_HANDLER =~ /autoregist/i) {
$REJECT_COMMAND_HANDLER;
}
elsif ($REJECT_POST_HANDLER =~ /auto_regist/i ||
$REJECT_POST_HANDLER =~ /auto_subscribe/i ||
$REJECT_POST_HANDLER =~ /autoregist/i) {
$REJECT_POST_HANDLER;
}
else {
0;
}
}
sub NotUseSeparateListP { ! &UseSeparateListP;}
sub UseSeparateListP
{
local($x) = &AutoRegistrableP;
if ($debug_fml30 == 1) {
&Log("AutoRegistrableP = $x"); $debug_fml30++;
}
if ($x eq 'auto_subscribe' || (! $x)) {
1;
}
else {
0;
}
}
# canonicalize address for database storing
# since we search it in case sensitive mode.
# preserve case in localpart but not in domain part
sub TrivialRewrite
{
my ($addr) = @_;
my ($local, $domain) = split(/\@/, $addr);
$domain =~ tr/A-Z/a-z/;
$local. '@'. $domain;
}
sub AutoRegistHandler
{
if ($debug) { @c = caller; &Log("AutoRegistHandler called from $c[2]");}
&use('amctl');
&AutoRegist(*Envelope);
}
sub RejectHandler
{
if ($debug) { @c = caller; &Log("RejectHandler called from $c[2]");}
&Log("Rejected: \"From:\" field is not member");
&WarnE("NOT MEMBER article from $From_address $ML_FN",
"NOT MEMBER article from $From_address\n\n");
if (-f $DENY_FILE) {
&SendFile($From_address,
"You $From_address are not member $ML_FN", $DENY_FILE);
}
else {
&Mesg(*Envelope, 'you are not member.', 'info.reject');
}
}
sub IgnoreHandler
{
&Log("Ignored: \"From:\" field is not member");
&WarnE("Ignored NOT MEMBER article from $From_address $ML_FN",
"Ignored NOT MEMBER article from $From_address");
}
# Lookup(key, file); return 1 if the "key" is found in the "file".
# e.g. Lookup(addr, member-list-file)
# return 1 if a given address is authenticated as member's (found in the file).
#
# performance test example 1 (100 times for 158 entries == 15800)
# fastest case
# old 1.880u 0.160s 0:02.04 100.0% 74+34k 0+1io 0pf+0w
# new 1.160u 0.160s 0:01.39 94.9% 73+36k 0+1io 0pf+0w
# slowest case
# old 20.170u 1.520s 0:22.76 95.2% 74+34k 0+1io 0pf+0w
# new 9.050u 0.190s 0:09.90 93.3% 74+36k 0+1io 0pf+0w
#
# the actual performance is the average between values above
# but the new version provides stable performance.
#
sub CheckMember { &Lookup(@_);}
sub Lookup
{
local($address, $file) = @_;
local($addr, $has_special_char, $auto_registrable);
# mode
$auto_registrable = &AutoRegistrableP;
# more severe check;
$address =~ s/^\s*//;
if ($address =~ /\@/) { # RFC822 addrspec
($addr) = split(/\@/, $address);
}
else { # not addrspec, arbitrary string
$addr = substr($address, 0, 8);
}
# MUST BE ONLY * ? () [] but we enhance the category -> shell sc
# add + (+ed user) 1998/11/08
if ($addr =~ /[\+\$\&\*\(\)\{\}\[\]\'\\\"\;\\\\\|\?\<\>\~\`]/) {
$has_special_char = 1;
}
open(LOOKUP_TABLE, $file) || do {
&Log("LookUp: cannot open $file");
return 0;
};
getline: while (<LOOKUP_TABLE>) {
chop;
if ($auto_registrable || $SubstiteForMemberListP) {
/^\#\s*(.*)/ && ($_ = $1);
}
next getline if /^\#/o; # strip comments
next getline if /^\s*$/o; # skip null line
/^\s*(\S+)\s*.*$/o && ($_ = $1); # including .*#.*
# member nocheck(for nocheck but not add mode)
# fixed by yasushi@pier.fuji-ric.co.jp 95/03/10
# $ENCOUNTER_PLUS by fukachan@phys 95/08
# $Envelope{'mode:anyone:ok'} by fukachan@phys 95/10/04
# $Envelope{'trap:+'} by fukachan@sapporo 97/06/28
if (/^\+\s*$/o) {
&Debug("encounter + [$_]") if $debug;
$Envelope{'trap:+'} = 1;
close(LOOKUP_TABLE);
return 1;
}
# for high performance(Firstly special character check)
if (! $has_special_char) { next getline unless /^$addr/i;}
# This searching algorithm must require about N/2, not tuned,
if (1 == &AddressMatch($_, $address)) {
close(LOOKUP_TABLE);
return 1;
}
}# end of while loop;
close(LOOKUP_TABLE);
return 0;
}
# for convenience
sub ExactAddressMatch
{
local($addr1, $addr2) = @_;
&SaveACL;
$ADDR_CHECK_MAX = 100;
local($r) = &AddressMatch($addr1, $addr2);
&RetACL;
$r;
}
# sub AddressMatching($addr1, $addr2)
# return 1 given addresses are matched at the accuracy of 4 fields
sub AddressMatching { &AddressMatch(@_);}
sub AddressMatch
{
local($addr1, $addr2) = @_;
&Debug(" AddressMatch($addr1, $addr2)".
" [\$ADDR_CHECK_MAX=$ADDR_CHECK_MAX]\n") if $debug_addrmatch;
# canonicalize to lower case
$addr1 =~ y/A-Z/a-z/;
$addr2 =~ y/A-Z/a-z/;
# try exact match. must return here in a lot of cases.
if ($addr1 eq $addr2) {
if ($debug) {
&Debug(" AddressMatch($addr1, $addr2) => exact match");
&Log("AddressMatch($addr1, $addr2) => exact match");
}
return 1;
}
# for further investigation, parse account and host
local($acct1, $addr1) = split(/@/, $addr1);
local($acct2, $addr2) = split(/@/, $addr2);
# At first, account is the same or not?;
if ($acct1 ne $acct2) { return 0;}
# Get an array "jp.ac.titech.phys" for "fukachan@phys.titech.ac.jp"
local(@d1) = reverse split(/\./, $addr1);
local(@d2) = reverse split(/\./, $addr2);
# Check only "jp.ac.titech" part( = 3)(default)
# If you like to strict the address check,
# change $ADDR_CHECK_MAX = e.g. 4, 5 ...
local($i, $m) = (0, 0);
while ($d1[$i] && $d2[$i] && ($d1[$i] eq $d2[$i])) { $i++;}
$m = ($ADDR_CHECK_MAX > 0) ? $ADDR_CHECK_MAX : 3;
if ($debug) {
&Debug(" AddressMatch($acct1\@$addr1, $acct2\@$addr2) => ".
(($i >= $m) ? "match" : "not match").
" [$i >= $m ? y : n]");
&Log("AddressMatch($acct1\@$addr1, $acct2\@$addr2) => ".
(($i >= $m) ? "match" : "not match"));
&Log("AddressMatch: $i >= $m ? match : not match");
}
($i >= $m) ? 1 : 0;
}
sub LowerDomain
{
my ($addr) = @_;
my (@addr) = split(/\@/, $addr);
if ($DATABASE_DRIVER_ATTRIBUTES =~ /always_lower_domain/) {
$addr[1] =~ tr/A-Z/a-z/;
return $addr[0].'@'.$addr[1];
}
else {
return $addr;
}
}
####### Section: Info
# Recreation of the whole mail for error infomation
sub WholeMail {
local(@xargv) = @_; &use('kernsubr2'); &__WholeMail(@xargv);
}
sub ForwMail {
local(@xargv) = @_; &use('kernsubr2'); &__ForwMail(@xargv);
}
sub Translate
{
local(*e, $s, $mesgle_key, @mesgle_argv) = @_;
if ($MESSAGE_LANGUAGE && $mesgle_key) {
&use('mesgle');
&MesgLE(*e, $mesgle_key, @mesgle_argv);
}
else { $NULL;}
}
# &Mesg(*e, );
# $mesgle == Message Languae Extension
sub Mesg
{
local(*e, $s, $mesgle_key, @mesgle_argv) = @_;
if ($MESSAGE_LANGUAGE && $mesgle_key) {
&Debug("MesgLE:try to translate key <$mesgle_key>") if $debug;
&use('mesgle');
$s = &MesgLE(*e, $mesgle_key, @mesgle_argv) || $s;
}
# if $s is null, return just now! (DUMMY_OPS may be useful)
return unless $s;
$e{'message'} .= "$s\n";
$MesgBuf .= "$s\n";
# dup to admins
$e{'message:to:admin'} .= "$s\n" if $e{'mode:notify_to_admin_also'};
}
# no real data copy but
# enable flag to mail body forwarding in Smtp() via Notify().
sub MesgMailBodyCopyOn
{
&Mesg(*e, "Original mail as follows:\n");
$Envelope{'message:ebuf2socket'} = 1;
}
sub MesgSetBreakPoint { undef $MesgBuf;}
sub MesgGetABP { $MesgBuf;} # After Break Point
# Forwarded and Warned to Maintainer;
sub Warn { &Forw(@_);}
sub Forw { &Sendmail($MAINTAINER, $_[0], $_[1]);}
sub WarnFile
{
local($subject, $file, $preamble, $trailor) = @_;
local($to, @file);
@file = $file; undef $file;
@to = ($MAINTAINER);
$Envelope{'preamble'} = $preamble;
&NeonSendFile(*to, *subject,*file);
undef $Envelope{'preamble'};
}
# Warn() with direct buffer copy from %Envelope to Socket
# and with "mh forwarding" separators (added in smtp library).
sub WarnF
{
$Envelope{'ctl:smtp:forw:ebuf2socket'} = 1;
&WarnE(@_);
$Envelope{'ctl:smtp:forw:ebuf2socket'} = 0;
}
# Extended Warn() with direct buffer copy from %Envelope to Socket
sub WarnE
{
local($subject, $body, $preamble, $trailor) = @_;
local($title);
$Envelope{'preamble'} = $preamble;
$title = $Envelope{"tmp:ws"} || "Original mail as follows";
$title = "\n$title:\n\n";
$Envelope{'ctl:smtp:ebuf2socket'} = 1;
&Sendmail($MAINTAINER, $subject, $body.$title);
$Envelope{'ctl:smtp:ebuf2socket'} = 0;
undef $Envelope{'preamble'};
}
sub Notify
{
local(@xargv) = @_; &use('kernsubr'); &__Notify(@xargv);
}
sub EnableReportForw2Admin
{
local(*e) = @_; $e{'mode:notify_to_admin_also'} = 1;
}
sub DisableReportForw2Admin
{
local(*e) = @_; $e{'mode:notify_to_admin_also'} = 0;
}
##
## Negative Cache Wrapper()'s
##
# wrap &Mesg() with negative cache
sub CMesg
{
local($msgkey, $howold, *e, $s, $mesgle_key, @mesgle_argv) = @_;
if (&OutOfNegativeCacheP($msgkey, $howold)) {
&Mesg(*e, $s, $mesgle_key, @mesgle_argv);
}
}
# wrap &Warn() with negative cache
sub CWarn
{
local($msgkey, $howold, $subject, $body) = @_;
if (&OutOfNegativeCacheP($msgkey, $howold)) {
&Warn($subject, $body);
}
}
sub OutOfNegativeCacheP
{
local($msgkey, $howold) = @_;
local($dir) = "$VAR_DIR/mesgcache";
local($cf) = "$dir/$msgkey";
local($x);
-d $dir || &Mkdir($dir);
if (-f $cf) {
$x = time - (stat($cf))[9]; # how lod
if ($x < $howold) {
print STDERR "ignore now ($count, $x $howold)\n" if $debug;
return 0; # in negative cache
}
}
&Touch($cf);
1;
}
# Generate additional information for command mail reply.
# return the STRING
sub GenInfo
{
local($s, $c, $d, $del);
local($message, $has_ctladdr_p, $addr, $trap);
# initialize variables
$del = ('*' x 60);
# if has control-address
if ($CONTROL_ADDRESS) {
$addr = $Envelope{'CtlAddr:'};
$has_ctladdr_p = 1;
}
# if !control-address but MAIL_LIST==CONTROL_ADDRESS
elsif ((! $CONTROL_ADDRESS) && &CompatFMLv1P) {
$addr = $MAIL_LIST;
$has_ctladdr_p = 1;
}
elsif ((! $CONTROL_ADDRESS) && $MAIL_LIST_ACCEPT_COMMAND) {
$addr = $MAIL_LIST;
$has_ctladdr_p = 1;
}
# help style;
$message = $Envelope{"mode:fmlserv"} ? "help": "$Envelope{'trap:ctk'}help";
if ($MAIL_LIST =~ /^(fmlserv|majordomo|listserv)/i) {
$trap = '';
}
else {
$trap = &CompatFMLv1P ? '#' : '';
}
$s .= "\n$del\n";
# URL Extentions
if ($ADD_URL_INFO) {
if ($Envelope{'mode:stranger'}) {
$URLInfo = ";\n\t<mailto:$MAINTAINER>";
$URLComInfo = &GenXMLInfo;
}
# not stranger and has ctladdr (From: is a member).
elsif ($has_ctladdr_p) {
$s .= "\n";
$s .= " Help: <mailto:$addr?body=${trap}help>\n";
$s .= "Unsubscribe: <mailto:$addr?body=${trap}unsubscribe>\n";
$s .= "\n";
$URLInfo = ";\n\thelp=<mailto:$addr?body=${trap}help>";
$URLComInfo = &GenXMLInfo;
}
# not stranger and has no ctladdr (From: is a member).
else {
$URLInfo = ";\n\t<mailto:$MAINTAINER>";
}
}
# RFC2369; Proposed Standard (so fml optional)
if ($USE_RFC2369) { &use('kernsubr2'); &EmulRFC2369;}
$s .= "If you have any questions or problems,\n";
$s .= " please contact $MAINTAINER\n";
if (! $Envelope{'mode:stranger'} && $has_ctladdr_p) { # a member
$s .= " or \n";
$s .= " send e-mail with the body \"$message\"(without quotes) to\n";
$s .= " $addr\n";
$s .= " (here is the automatic reply, so more preferable)\n\n";
$s .= "e.g. on a Unix Machine\n";
$s .= "(shell prompt)\% echo \"$message\" |Mail $addr";
}
$s .= "\n\n$del\n";
$s;
}
sub GenXMLInfo
{
if ($X_ML_INFO_MESSAGE) {
$X_ML_INFO_MESSAGE;
}
elsif ($Envelope{'mode:stranger'} ||
(!$CONTROL_ADDRESS &&
$PERMIT_POST_FROM =~ /^(anyone|members_only)$/)) {
"If you have a question,\n\tplease contact $MAINTAINER".
";\n\t<mailto:$MAINTAINER>";
}
else {
"If you have a question, send e-mail with the body\n".
"\t\"". $Envelope{'trap:ctk'}.
"help\" (without quotes) to the address ". &CtlAddr .
$URLInfo;
}
}
####### Section: IO
# Log: Logging function
# ALIAS:Logging(String as message) (OLD STYLE: Log is an alias)
# delete \015 and \012 for seedmail return values
# $s for ERROR which shows trace infomation
sub Logging { &Log(@_);} # BACKWARD COMPATIBILITY
sub LogWEnv { local($s, *e) = @_; &Log($s); $e{'message'} .= "$s\n";}
sub Log
{
local($str, $s) = @_;
local($package, $filename, $line) = caller; # called from where?
local($from) = $PeerAddr ? "$From_address[$PeerAddr]" : $From_address;
local($error);
&GetTime;
$str =~ s/\015\012$//; # FIX for SMTP (cut \015(^M));
if ($debug_smtp && ($str =~ /^5\d\d\s/)) {
$error .= "Sendmail ERROR:\n";
$error .= "\t$Now $str $_\n\t($package, $filename, $line)\n\n";
}
$str = "$filename:$line% $str" if $debug_caller;
# existence and append(open system call check)
if (-f $LOGFILE && open(APP, ">> $LOGFILE")) {
&Append2("$Now $str ($from)", $LOGFILE);
&Append2("$Now $filename:$line% $s", $LOGFILE) if $s;
}
else {
print STDERR "$Now ($package, $filename, $line) $LOGFILE\n";
print STDERR "$Now $str ($from)\n\t$s\n";
}
$Envelope{'error'} .= $error if $error;
print STDERR "*** $str; $s;\n" if $debug;
}
# $mode: see open(2)
sub __Write30
{
local(*e, *s, *f, $mode, $envelope_hash_key) = @_;
local($status);
if ($mode eq "O_APPEND") {
$status = open(WRITE2_OUT, ">> $f");
}
else {
$status = open(WRITE2_OUT, "> $f");
}
if ($status) {
select(WRITE2_OUT); $| = 1; select(STDOUT);
# XXX Caution: "\n" handling differs.
if ($envelope_hash_key) {
print WRITE2_OUT $e{$envelope_hash_key};
}
else {
print WRITE2_OUT $s, "\n";
}
close(WRITE2_OUT);
1;
}
else {
0;
}
}
sub HashValueAppend
{
local(*e, $key, $f) = @_;
&__Write30(*e, *NULL, *f, "O_APPEND", $key) || do {
local(@caller) = caller;
print STDERR "HashValueAppend(@_)::Error caller=<@caller>\n";
};
}
# append $s >> $file
# if called from &Log and fails, must be occur an infinite loop. set $nor
# return NONE
sub Append2
{
local($s, $f, $o_append) = @_;
($s && &__Write30(*NULL, *s, *f, "O_APPEND")) || do {
local(@caller) = caller;
print STDERR "Append2(@_)::Error caller=<@caller>\n";
};
}
sub Write2
{
local($s, $f, $o_append) = @_;
if ($o_append) {
return &Append2(@_);
}
elsif ($s && &__Write30(*NULL, *s, *f, "O_RWONLY")) {
;
}
else {
local(@caller) = caller;
print STDERR "Write2(@_)::Error caller=<@caller>\n";
return 0;
};
1;
}
sub Touch { open(APP, ">>$_[0]"); close(APP); chown $<, $GID, $_[0] if $GID;}
sub Write3
{
local(@xargv) = @_; &use('kernsubr'); &__Write3(@xargv);
}
sub GetFirstLineFromFile
{
if (open(GFLFF, $_[0])) {
chop($_ = <GFLFF>);
close(GFLFF);
$_;
}
else {
return $NULL;
}
}
# $id = IncrementCounter(file, modulus)
sub IncrementCounter
{
my ($f, $modulus) = @_;
my ($id) = 0;
# return cached id (against duplicated calls within one thread).
$IncrementCounterCalled{$f}++;
return $IncrementCounter{$f} if $IncrementCounterCached{$f};
&Touch($f) unless -f $f;
if (-f $f) {
$id = &GetFirstLineFromFile($f);
$id++;
if ($modulus > 0) { $id = $id % $modulus;}
if (open($f, "> ${f}.$$.new")) {
select($f); $| = 1; select(STDOUT);
print $f $id, "\n";
close($f);
rename("${f}.$$.new", $f);
}
}
$IncrementCounter{$f} = $id; # (0 .. modulus-unit)
$IncrementCounterCached{$f} = 1;
$id;
}
# For Example,
# $pp = $p = 0;
# while (1) {
# $p = &GetLinePtrFromHash(*Envelope, "Body", $pp);
# print substr($Envelope{'Body'}, $pp, $p-$pp+1);
# last if $p < 0;
# $pp = $p + 1;
# }
sub GetLinePtrFromHash
{
local(*e, $key, $ptr) = @_;
index($e{$key}, "\n", $ptr);
}
# For example,
# ($p, $pb, $pe) = &GetBlockPtrFromHash(*Envelope, 'Body', $b, $pp);
# last if $p < 0;
# print substr($Envelope{'Body'}, $pb, $pe - $pb);
sub GetBlockPtrFromHash
{
local(*e, $key, $b, $ptr) = @_;
local($p, $pb, $pe);
$p = &GetPtrFromHash(*e, 'Body', $b, $ptr);
$pb = &GetPtrFromHash(*e, 'Body', "\n\n", $p + 1);
$pe = &GetPtrFromHash(*e, 'Body', $b, $pb + 1);
($p, $pb + 2, $pe)
}
sub GetPtrFromHash
{
local(*e, $key, $pat, $ptr) = @_;
index($e{$key}, $pat, $ptr);
}
# useful for "Read Open"
sub Open
{
if ((!-f $_[1]) || $_[1] eq '') {
local(@c) = caller; local($c) = "$c[1],$c[2]"; $c =~ s#^\S+/##;
if (! -f $_[1]) { &Log("${c}::Open $_[1] NOT FOUND");}
if ($_[1] eq '') { &Log("${c}::Open $_[1] IS NULL; NOT DEFINED");}
return 0;
}
open($_[0], $_[1]) || do {
local(@c) = caller; local($c) = "$c[1],$c[2]"; $c =~ s#^\S+/##;
&Log("$c::Open failed $_[1]"); return 0;
};
}
sub Copy
{
local($in, $out) = @_;
local($mode) = (stat($in))[2];
open(COPYIN, $in) || (&Log("ERROR: Copy::In [$!]"), return 0);
open(COPYOUT, "> $out") || (&Log("ERROR: Copy::Out [$!]"), return 0);
select(COPYOUT); $| = 1; select(STDOUT);
chmod $mode, $out;
while (sysread(COPYIN, $_, 4096)) { print COPYOUT $_;}
close(COPYOUT);
close(COPYIN);
1;
}
# checks the executable "prog" in "prog option".
sub ProgExecuteP
{
local($prog) = @_;
$prog || return 0; # no input
($prog) = (split(/\s+/, $prog))[0];
-x $prog ? 1 : 0;
}
# check fundamental programs existence
sub DiagPrograms
{
my (@prog) = @_;
my ($x, $bad);
if ($UNISTD) {
for $x (@prog) {
&ProgExecuteP( ${ $x } ) || do {
$bad++;
&Log("ERROR: program \$${x} is not defined");
};
}
}
$bad ? 0 : 1; # if bad, return 0;
}
# mainly search e.g. "sendmail"
sub SearchPath
{
local($prog, @path) = @_;
for ("/usr/sbin", "/usr/lib", @path) {
if (-e "$_/$prog" && -x "$_/$prog") { return "$_/$prog";}
}
}
sub SearchFileInLIBDIR
{
for (@LIBDIR) {
&Debug("SearchFileInLIBDIR: <$_>/$_[0]") if $debug;
if (-f "$_/$_[0]") { return "$_/$_[0]";}
}
$NULL;
}
sub SearchFileInINC
{
for (@INC) { if (-f "$_/$_[0]") { return "$_/$_[0]";}}
$NULL;
}
sub GetFirstMultipartBlock
{
local(*e) = @_;
if ($e{'MIME:boundary'}) {
($p, $pb, $pe) =
&GetBlockPtrFromHash(*e, 'Body', $e{'MIME:boundary'}, 0);
if ($pb > 0 && $pe > 0) {
substr($e{'Body'}, $pb, $pe - $pb);
}
else {
&Log("GetFirstMultipartBlock: invalid MIME/multipart message");
$NULL;
}
}
else {
&Log("GetFirstMultipartBlock: invalid MIME/multipart message");
$NULL;
}
}
####### Section: Utilities
# we suppose &Uniq(*array)'s "array" is enough small.
sub Uniq
{
local(*q) = @_;
local(%p, @p);
for (@q) { next if $p{$_}; $p{$_} = $_; push(@p, $_);}
@q = @p;
}
# $pat is included in $list (A:B:C:... syntax)
sub ListIncludePatP
{
local($pat, $list) = @_;
for (split(/:/, $list)) { return 1 if $pat eq $_;}
0;
}
sub DebugLog
{
local($s) = @_;
local($f) = $DEBUG_LOGFILE || $LOGFILE.".debug";
&GetTime;
&Append2("$Now $s", $f);
}
sub Debug
{
print STDERR "$_[0]\n";
&Mesg(*Envelope, "\nDEBUG $_[0]") if $debug_message;
&DebugLog($_[0]) if $debug > 1;
}
sub ABS { $_[0] < 0 ? - $_[0] : $_[0];}
sub ATOI
{
if ($_[0] eq '') {
return $NULL;
}
elsif ($_[0] =~ /^(\d+)$/i) {
$_[0];
}
elsif ($_[0] =~ /^(\d+)M$/i) {
$1 * 1024 * 1024;
}
elsif ($_[0] =~ /^(\d+)K$/i) {
$1 * 1024;
}
else {
&Log("ATOI: $_[0] is unknown type");
}
}
# eval and print error if error occurs.
# which is best? but SHOULD STOP when require fails.
sub use { require "lib$_[0].pl";}
sub Use { require "lib$_[0].pl";}
# &UseModule("Japanese", "langdep");
sub UseModule { require "module/$_[0]/lib$_[1].pl";}
sub MkDir { &Mkdir(@_);}
sub Mkdir
{
if ($_[1] ne '') { return &MkDirHier($_[0], $_[1]);}
&MkDirHier($_[0], $DEFAULT_DIR_MODE || 0700);
if ($USE_FML_WITH_FMLSERV && $SPOOL_DIR eq $_[0]) { chmod 0750, $_[0];}
if ($USE_FML_WITH_FMLSERV && $GID) { chown $<, $GID, $_[0];}
}
sub MkDirHier
{
local($pat) = $UNISTD ? '/|$' : '\\\\|/|$'; # on UNIX or NT4
while ($_[0] =~ m:$pat:go) {
next if (!$UNISTD) && $` =~ /^[A-Za-z]:$/; # ignore drive letter on NT4
if ($` ne "" && !-d $`) {
mkdir($`, $_[1] || 0777) || do {
&Log("cannot mkdir $`: $!");
return 0;
};
}
}
1;
}
# eval and print error if error occurs.
sub eval
{
&CompatFML15_Pre if $COMPAT_FML15;
eval $_[0];
$@ ? (&Log("$_[1]:$@"), 0) : 1;
&CompatFML15_Post if $COMPAT_FML15;
}
sub PerlModuleExistP
{
local($pm) = @_;
if ($] !~ /^5\./) { &Log("ERROR: using $pm requires perl 5"); return 0;}
eval("use $pm");
if ($@) { &Log("${pm}.pm NOT FOUND; Please install ${pm}.pm"); return 0;}
1;
}
# Getopt
sub Opt { push(@SetOpts, @_);}
# Setting CommandLineOptions after include config.ph
sub SetOpts
{
# should pararelly define ...
for (@SetOpts) {
/^\-\-MLADDR=(\S+)/i && (&use("mladdr"), &MLAddr($1));
if (/^\-\-([_a-z0-9]+)$/||/^\-\-([_a-z0-9]+=\S+)$/) {&DEFINE_MODE($1);}
}
for (@SetOpts) {
if (/^\-\-(force|fh):(\S+)=(\S+)/) { # "foreced header";
&DEFINE_FIELD_FORCED($2, $3); next;
}
elsif (/^\-\-(original|org|oh):(\S+)/) { # "foreced header";
&DEFINE_FIELD_ORIGINAL($2); next;
}
elsif (/^\-\-([_A-Z0-9]+)=(\S+)/) { # USER DEFINED VARIABLES
eval("\$$1 = '$2';"); next;
}
elsif (/^\-\-(\S+)/) { # backward mode definition is moved above
local($_) = $1;
/^[_a-z0-9]+$/ || eval("\$${_} = 1;");
/^permit:([a-z0-9:]+)$/ && ($Permit{$1} = 1); # set %Permit;
next;
}
/^\-(\S)/ && ($Opt{"opt:$1"} = 1);
/^\-(\S)(\S+)/ && ($Opt{"opt:$1"} = $2);
/^\-d(\d+)/ && ($debug = $1) && next;
/^\-d|^\-bt/ && ($debug = 1) && next;
/^\-s(\S+)/ && &eval("\$$1 = 1;") && next;
/^\-u(\S+)/ && &eval("undef \$$1;") && next;
/^\-l(\S+)/ && ($LOAD_LIBRARY = $1) && next;
}
}
sub GenMessageId
{
&GetTime;
$GenMessageId = $GenMessageId++ ? $GenMessageId : 'AAA';
"<${CurrentTime}.FML${GenMessageId}". $$ .".$MAIL_LIST>";
}
# which address to use a COMMAND control.
sub CtlAddr { &Addr2FQDN($CONTROL_ADDRESS);}
# Do FQDN of the given Address 1. $addr is set and has @, 2. MAIL_LIST
sub Addr2FQDN { $_[0]? ($_[0] =~ /\@/ ? $_[0]: $_[0]."\@$FQDN") : $MAIL_LIST;}
sub CutFQDN { $_[0] =~ /^(\S+)\@\S+/ ? $1 : $_[0];}
sub SRand
{
local($i) = time;
$i = (($i & 0xff) << 8) | (($i >> 8) & 0xff) | 1;
srand($i + $$);
}
# Reference: NetBSD:/usr/src/usr.bin/cksum/sum2.c
# *** cksum utility is expected to conform to IEEE Std 1003.2-1992 ***
sub TraditionalATTUnixCheckSum
{
my ($f) = @_;
my ($crc, $total, $nr);
$crc = $total = 0;
if (open($f, $f)) {
while (($nr = sysread($f, $buf, 1024)) > 0) {
my ($i) = 0;
$total += $nr;
for ($i = 0; $i < $nr; $i++) {
$r = substr($buf, $i, 1);
$crc += ord($r);
}
}
close($f);
$crc = ($crc & 0xffff) + ($crc >> 16);
$crc = ($crc & 0xffff) + ($crc >> 16);
}
else {
print STDERR "ERROR: no such file $f\n";
}
($crc, $total);
}
sub LogFileNewSyslog
{
$LOGFILE_NEWSYSLOG_LIMIT = &ATOI($LOGFILE_NEWSYSLOG_LIMIT);
if ($LOGFILE_NEWSYSLOG_LIMIT) {
if ((stat($LOGFILE))[7] > $LOGFILE_NEWSYSLOG_LIMIT) {
require 'libnewsyslog.pl';
&NewSyslog($LOGFILE);
&Touch($LOGFILE);
}
}
}
sub CacheTurnOver
{
local($file, $size_limit) = @_;
if ((stat($file))[7] > $size_limit) {
&use('newsyslog');
&NewSyslog'TurnOverW0($file);#';
&Touch($file);
}
}
sub DBCtl
{
&use('db');
&FML_SYS_DBCtl(@_);
}
####### Section: Security
# anyway alias now (1998/05/03)
# If sent back directly, X-ML-Info: exists and must contains e.g. $MAIL_LIST .
sub MailLoopP
{
if ($Envelope{'h:x-ml-info:'}) {
if ($Envelope{'h:x-ml-info:'} =~ /contact $MAINTAINER/i ||
$Envelope{'h:x-ml-info:'} =~ /(address\s+|mailto:)$MAIL_LIST/i ||
$Envelope{'h:x-ml-info:'} =~ /(address\s+|mailto:)$CONTROL_ADDRESS/i) {
&Log("Loop Alert: dup X-ML-Info:");
&WarnE("Loop Alert: dup X-ML-Info: $ML_FN",
"fml <$MAIL_LIST> has detected a loop condition so that\n"
."input mail has already our ML X-ML-Info: field.\n\n");
return 1;
}
}
&DupMessageIdP;
}
sub SearchDupKey
{
local($key, $file) = @_;
local($status, $i);
# 1. scan current and
if (-f $file) {
$status = &Lookup($key, $file);
}
return $status if $status;
# 2. scan all available caches
for $i (0 .. $NEWSYSLOG_MAX) {
if ($status) {
last; # end if non null $status is returned.
}
elsif (-f "$file.$i") {
$status = &Lookup($key, "$file.$i");
}
}
$status;
}
# If O.K., record the Message-Id to the file $LOG_MESSAGE_ID);
# message-id cache should be done for mails in action
sub CacheMessageId
{
local(*e, $msgid) = @_;
local($id);
# canonicalize
$id = $msgid || $e{'h:Message-Id:'};
$id || (&Log("Invalid Message-Id:<$id>"), return $NULL);
$id =~ s/[\<\>]//g;