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715 lines
27 KiB
Perl
715 lines
27 KiB
Perl
#!/usr/bin/perl -w
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#
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# Virtual Vacation 4.0r1
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#
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# $Revision$
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# Originally by Mischa Peters <mischa at high5 dot net>
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#
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# Copyright (c) 2002 - 2005 High5!
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# Licensed under GPL for more info check GPL-LICENSE.TXT
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#
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# Additions:
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# 2004/07/13 David Osborn <ossdev at daocon.com>
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# strict, processes domain level aliases, more
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# subroutines, send reply from original to address
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#
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# 2004/11/09 David Osborn <ossdev at daocon.com>
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# Added syslog support
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# Slightly better logging which includes messageid
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# Avoid infinite loops with domain aliases
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#
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# 2005-01-19 Troels Arvin <troels at arvin.dk>
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# PostgreSQL-version.
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# Normalized DB schema from one vacation table ("vacation")
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# to two ("vacation", "vacation_notification"). Uses
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# referential integrity CASCADE action to simplify cleanup
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# when a user is no longer on vacation.
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# Inserting variables into queries stricly by prepare()
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# to try to avoid SQL injection.
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# International characters are now handled well.
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#
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# 2005-01-21 Troels Arvin <troels at arvin.dk>
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# Uses the Email::Valid package to avoid sending notices
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# to obviously invalid addresses.
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#
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# 2007-08-15 David Goodwin <david at palepurple.co.uk>
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# Use the Perl Mail::Sendmail module for sending mail
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# Check for headers that start with blank lines (patch from forum)
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#
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# 2007-08-20 Martin Ambroz <amsys at trustica.cz>
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# Added initial Unicode support
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#
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# 2008-05-09 Fabio Bonelli <fabiobonelli at libero.it>
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# Properly handle failed queries to vacation_notification.
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# Fixed log reporting.
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#
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# 2008-07-29 Patch from Luxten to add repeat notification after timeout. See:
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# https://sourceforge.net/tracker/index.php?func=detail&aid=2031631&group_id=191583&atid=937966
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#
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# 2008-08-01 Luigi Iotti <luigi at iotti dot biz>
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# Use envelope sender/recipient instead of using
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# From: and To: header fields;
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# Support to good vacation behavior as in
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# http://www.irbs.net/internet/postfix/0707/0954.html
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# (needs to be tested);
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#
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# 2008-08-04 David Goodwin <david at palepurple dot co dot uk>
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# Use Log4Perl
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# Added better testing (and -t option)
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#
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# 2009-06-29 Stevan Bajic <stevan at bajic.ch>
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# Add Mail::Sender for SMTP auth + more flexibility
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#
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# 2009-07-07 Stevan Bajic <stevan at bajic.ch>
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# Add better alias lookups
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# Check for more heades from Anti-Virus/Anti-Spam solutions
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#
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# 2009-08-10 Sebastian <reg9009 at yahoo dot de>
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# Adjust SQL query for vacation timeframe. It is now possible to set from/until date for vacation message.
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#
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# 2012-04-1 Nikolaos Topp <info at ichier.de>
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# Add configuration parameter $smtp_client in order to get mails through
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# postfix helo-checks, using check_helo_access whitelist without permitting 'localhost' default style stuff
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#
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# 2012-04-19 Jan Kruis <jan at crossreference dot nl>
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# change SQL query for vacation into function.
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# Add sub get_interval()
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# Gives the user the option to set the interval time ( 0 = one reply, 1 = autoreply, > 1 = Delay reply )
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# See https://sourceforge.net/tracker/?func=detail&aid=3508083&group_id=191583&atid=937966
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#
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# 2012-06-18 Christoph Lechleitner <christoph.lechleitner@iteg.at>
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# Add capability to include the subject of the original mail in the subject of the vacation message.
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# A good vacation subject could be: 'Re: $SUBJECT'
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# Also corrected log entry about "Already informed ..." to show the $orig_from, not $email
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#
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# Requirements - the following perl modules are required:
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# DBD::Pg or DBD::mysql
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# Mail::Sender, Email::Valid MIME::Charset, Log::Log4perl, Log::Dispatch, MIME::EncWords and GetOpt::Std
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#
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# You may install these via CPAN, or through your package tool.
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# CPAN: 'perl -MCPAN -e shell', then 'install Module::Whatever'
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#
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# On Debian based systems :
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# libmail-sender-perl
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# libdbd-pg-perl
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# libemail-valid-perl
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# libmime-perl
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# liblog-log4perl-perl
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# liblog-dispatch-perl
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# libgetopt-argvfile-perl
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# libmime-charset-perl (currently in testing, see instructions below)
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# libmime-encwords-perl (currently in testing, see instructions below)
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#
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# Note: When you use this module, you may start seeing error messages
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# like "Cannot insert a duplicate key into unique index
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# vacation_notification_pkey" in your system logs. This is expected
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# behavior, and not an indication of trouble (see the "already_notified"
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# subroutine for an explanation).
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#
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# You must also have the Email::Valid and MIME-tools perl-packages
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# installed. They are available in some package collections, under the
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# names 'perl-Email-Valid' and 'perl-MIME-tools', respectively.
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# One such package collection (for Linux) is:
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# http://dag.wieers.com/home-made/apt/packages.php
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#
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use DBI;
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use MIME::Base64;
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use MIME::EncWords qw(:all);
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use Email::Valid;
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use strict;
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use Mail::Sender;
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use Getopt::Std;
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use Log::Log4perl qw(get_logger :levels);
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use File::Basename;
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# ========== begin configuration ==========
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# IMPORTANT: If you put passwords into this script, then remember
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# to restrict access to the script, so that only the vacation user
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# can read it.
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# db_type - uncomment one of these
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our $db_type = 'Pg';
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#our $db_type = 'mysql';
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# leave empty for connection via UNIX socket
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our $db_host = '';
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# connection details
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our $db_username = 'user';
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our $db_password = 'password';
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our $db_name = 'postfix';
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our $vacation_domain = 'autoreply.example.org';
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# smtp server used to send vacation e-mails
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our $smtp_server = 'localhost';
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our $smtp_server_port = 25;
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# this is the helo we [the vacation script] use on connection; you may need to change this to your hostname or something,
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# depending upon what smtp helo restrictions you have in place within Postfix.
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our $smtp_client = 'localhost';
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# SMTP authentication protocol used for sending.
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# Can be 'PLAIN', 'LOGIN', 'CRAM-MD5' or 'NTLM'
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# see "perldoc Mail::Sender" (search for "auth") for more options and details
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# Leave it blank if you don't use authentication
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our $smtp_auth = undef;
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# username used to login to the server
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our $smtp_authid = 'someuser';
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# password used to login to the server
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our $smtp_authpwd = 'somepass';
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# This specifies the mail 'from' name which is shown to recipients of vacation replies.
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# If you leave it empty, the vacation mail will contain:
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# From: <original@recipient.domain>
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# If you specify something here you'd instead see something like :
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# From: Some Friendly Name <original@recipient.domain>
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our $friendly_from = '';
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# use TLS for the SMTP connection?
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# while in general this would be a good idea, TLS with Mail::Sender 0.8.22 is buggy - https://rt.cpan.org/Public/Bug/Display.html?id=85438
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our $smtp_tls_allowed = 0;
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# Set to 1 to enable logging to syslog.
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our $syslog = 0;
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# path to logfile, when empty logging is suppressed
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# change to e.g. /dev/null if you want nothing logged.
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# if we can't write to this, and $log_to_file is 1 (below) the script will abort.
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our $logfile='/var/log/vacation.log';
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# 2 = debug + info, 1 = info only, 0 = error only
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our $log_level = 2;
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# Whether to log to file or not, 0 = do not write to a log file
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our $log_to_file = 0;
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# notification interval, in seconds
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# set to 0 to notify only once
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# e.g. 1 day ...
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#our $interval = 60*60*24;
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# disabled by default
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our $interval = 0;
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# Send vacation mails to do-not-reply email addresses.
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# By default vacation email addresses will be sent.
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# For now emails from bounce|do-not-reply|facebook|linkedin|list-|myspace|twitter won't
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# be answered when $custom_noreply_pattern is set to 1.
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# default = 0
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our $custom_noreply_pattern = 0;
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our $noreply_pattern = 'bounce|do-not-reply|facebook|linkedin|list-|myspace|twitter';
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# instead of changing this script, you can put your settings to /etc/mail/postfixadmin/vacation.conf
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# or /etc/postfixadmin/vacation.conf just use Perl syntax there to fill the variables listed above
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# (without the "our" keyword). Example:
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# $db_username = 'mail';
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if (-f '/etc/mail/postfixadmin/vacation.conf') {
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require '/etc/mail/postfixadmin/vacation.conf';
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} elsif (-f '/etc/postfixadmin/vacation.conf') {
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require '/etc/postfixadmin/vacation.conf';
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}
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# =========== end configuration ===========
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if($log_to_file == 1) {
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if (( ! -w $logfile ) && (! -w dirname($logfile))) {
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# Cannot log; no where to write to.
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die("Cannot create logfile : $logfile");
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}
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}
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my ($from, $to, $cc, $replyto , $subject, $messageid, $lastheader, $smtp_sender, $smtp_recipient, %opts, $test_mode, $logger);
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$subject='';
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$messageid='unknown';
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# Setup a logger...
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#
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getopts('f:t:', \%opts) or die "Usage: $0 [-t yes] -f sender -- recipient\n\t-t for testing only\n";
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$opts{f} and $smtp_sender = $opts{f} or die '-f sender not present on command line';
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$test_mode = 0;
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$opts{t} and $test_mode = 1;
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$smtp_recipient = shift or die 'recipient not given on command line';
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my $log_layout = Log::Log4perl::Layout::PatternLayout->new('%d %p> %F:%L %M - %m%n');
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if($test_mode == 1) {
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$logger = get_logger();
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# log to stdout
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my $appender = Log::Log4perl::Appender->new('Log::Dispatch::Screen');
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$appender->layout($log_layout);
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$logger->add_appender($appender);
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$logger->debug('Test mode enabled');
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} else {
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$logger = get_logger();
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if($log_to_file == 1) {
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# log to file
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my $appender = Log::Log4perl::Appender->new(
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'Log::Dispatch::File',
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filename => $logfile,
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mode => 'append');
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$appender->layout($log_layout);
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$logger->add_appender($appender);
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}
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if($syslog == 1) {
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my $syslog_appender = Log::Log4perl::Appender->new(
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'Log::Dispatch::Syslog',
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facility => 'mail',
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);
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$logger->add_appender($syslog_appender);
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}
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}
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# change to $DEBUG, $INFO or $ERROR depending on how much logging you want.
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$logger->level($ERROR);
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if($log_level == 1) {
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$logger->level($INFO);
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}
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if($log_level == 2) {
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$logger->level($DEBUG);
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}
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binmode (STDIN,':encoding(UTF-8)');
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my $dbh;
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if ($db_host) {
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$dbh = DBI->connect("DBI:$db_type:dbname=$db_name;host=$db_host","$db_username", "$db_password", { RaiseError => 1 });
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} else {
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$dbh = DBI->connect("DBI:$db_type:dbname=$db_name","$db_username", "$db_password", { RaiseError => 1 });
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}
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if (!$dbh) {
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$logger->error('Could not connect to database'); # eval { } etc better here?
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exit(0);
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}
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my $db_true; # MySQL and PgSQL use different values for TRUE, and unicode support...
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if ($db_type eq 'mysql') {
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$dbh->do('SET CHARACTER SET utf8;');
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$db_true = '1';
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} else { # Pg
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$dbh->do("SET CLIENT_ENCODING TO 'UTF8'");
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$db_true = 'True';
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}
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# used to detect infinite address lookup loops
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my $loopcount=0;
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#
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# Get interval_time for email user from the vacation table
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#
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sub get_interval {
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my ($to) = @_;
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my $query = qq{SELECT interval_time FROM vacation WHERE email=? };
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my $stm = $dbh->prepare($query) or panic_prepare($query);
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$stm->execute($to) or panic_execute($query," 'email='$to'");
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my $rv = $stm->rows;
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if ($rv == 1) {
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my @row = $stm->fetchrow_array;
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my $interval = $row[0] ;
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return $interval ;
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} else {
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return 0 ;
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}
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}
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sub already_notified {
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my ($to, $from) = @_;
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my $logger = get_logger();
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# delete old notifications
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my $query = qq{DELETE vacation_notification.* FROM vacation_notification LEFT JOIN vacation ON vacation.email = vacation_notification.on_vacation WHERE on_vacation = ? AND notified = ? AND notified_at < vacation.activefrom};
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my $stm = $dbh->prepare($query);
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if (!$stm) {
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$logger->error("Could not prepare query (trying to delete old vacation notifications) :'$query' to: $to, from:$from");
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return 1;
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}
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$stm->execute($to,$from);
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$query = qq{INSERT into vacation_notification (on_vacation,notified) values (?,?)};
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$stm = $dbh->prepare($query);
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if (!$stm) {
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$logger->error("Could not prepare query '$query' to: $to, from:$from");
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return 1;
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}
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$stm->{'PrintError'} = 0;
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$stm->{'RaiseError'} = 0;
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if (!$stm->execute($to,$from)) {
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my $e=$dbh->errstr;
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# Violation of a primary key constraint may happen here, and that's
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# fine. All other error conditions are not fine, however.
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if ($e !~ /(?:_pkey|^Duplicate entry)/) {
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$logger->error("Failed to insert into vacation_notification table (to:$to from:$from error:'$e' query:'$query')");
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# Let's play safe and notify anyway
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return 1;
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}
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$interval = get_interval($to);
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if ($interval) {
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$query = qq{SELECT NOW()-notified_at FROM vacation_notification WHERE on_vacation=? AND notified=?};
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$stm = $dbh->prepare($query) or panic_prepare($query);
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$stm->execute($to,$from) or panic_execute($query,"on_vacation='$to', notified='$from'");
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my @row = $stm->fetchrow_array;
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my $int = $row[0];
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if ($int > $interval) {
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$logger->info("[Interval elapsed, sending the message]: From: $from To:$to");
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$query = qq{UPDATE vacation_notification SET notified_at=NOW() WHERE on_vacation=? AND notified=?};
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$stm = $dbh->prepare($query);
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if (!$stm) {
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$logger->error("Could not prepare query '$query' (to: '$to', from: '$from')");
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return 0;
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}
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if (!$stm->execute($to,$from)) {
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$e=$dbh->errstr;
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$logger->error("Error from running query '$query' (to: '$to', from: '$from', error: '$e')");
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}
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return 0;
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} else {
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$logger->debug("Notification interval not elapsed; not sending vacation reply (to: '$to', from: '$from')");
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return 1;
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}
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} else {
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return 1;
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}
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}
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return 0;
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}
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#
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# Check to see if there is a vacation record against a specific email address.
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#
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sub check_for_vacation {
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my ($email_to_check) =@_;
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my $query = qq{SELECT email FROM vacation WHERE email=? and active=$db_true and activefrom <= NOW() and activeuntil >= NOW()};
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my $stm = $dbh->prepare($query) or panic_prepare($query);
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$stm->execute($email_to_check) or panic_execute($query,"email='$email_to_check'");
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my $rv = $stm->rows;
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return $rv;
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}
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# try and determine if email address has vacation turned on; we
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# have to do alias searching, and domain aliasing resolution for this.
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# If found, return ($num_matches, $real_email);
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sub find_real_address {
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my ($email) = @_;
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my $logger = get_logger();
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if (++$loopcount > 20) {
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$logger->error("find_real_address loop! (more than 20 attempts!) currently: $email");
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exit(1);
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}
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my $realemail = '';
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my $rv = check_for_vacation($email);
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# Recipient has vacation
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if ($rv == 1) {
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$realemail = $email;
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$logger->debug("Found '$email' has vacation active");
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} else {
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my $vemail = $email;
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$vemail =~ s/\@/#/g;
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$vemail = $vemail . "\@" . $vacation_domain;
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$logger->debug("Looking for alias records that '$email' resolves to with vacation turned on");
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my $query = qq{SELECT goto FROM alias WHERE address=? AND (goto LIKE ? OR goto LIKE ? OR goto LIKE ? OR goto = ?)};
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my $stm = $dbh->prepare($query) or panic_prepare($query);
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$stm->execute($email,"$vemail,%","%,$vemail","%,$vemail,%", "$vemail") or panic_execute($query,"address='$email'");
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$rv = $stm->rows;
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# Recipient is an alias, check if mailbox has vacation
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if ($rv == 1) {
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my @row = $stm->fetchrow_array;
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my $alias = $row[0];
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if ($alias =~ /,/) {
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for (split(/\s*,\s*/, lc($alias))) {
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my $singlealias = $_;
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$logger->debug("Found alias \'$singlealias\' for email \'$email\'. Looking if vacation is on for alias.");
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$rv = check_for_vacation($singlealias);
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# Alias has vacation
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if ($rv == 1) {
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$realemail = $singlealias;
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last;
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}
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}
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} else {
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$rv = check_for_vacation($alias);
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# Alias has vacation
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if ($rv == 1) {
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$realemail = $alias;
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}
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}
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# We have to look for alias domain (domain1 -> domain2)
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} else {
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my ($user, $domain) = split(/@/, $email);
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$logger->debug("Looking for alias domain for $domain / $email / $user");
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$query = qq{SELECT target_domain FROM alias_domain WHERE alias_domain=?};
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$stm = $dbh->prepare($query) or panic_prepare($query);
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$stm->execute($domain) or panic_execute($query,"alias_domain='$domain'");
|
|
$rv = $stm->rows;
|
|
|
|
# The domain has a alias domain level alias
|
|
if ($rv == 1) {
|
|
my @row = $stm->fetchrow_array;
|
|
my $alias_domain_dest = $row[0];
|
|
($rv, $realemail) = find_real_address ("$user\@$alias_domain_dest");
|
|
|
|
# We still have to look for domain level aliases...
|
|
} else {
|
|
my ($user, $domain) = split(/@/, $email);
|
|
$logger->debug("Looking for domain level aliases for $domain / $email / $user");
|
|
$query = qq{SELECT goto FROM alias WHERE address=?};
|
|
$stm = $dbh->prepare($query) or panic_prepare($query);
|
|
$stm->execute("\@$domain") or panic_execute($query,"address='\@$domain'");
|
|
$rv = $stm->rows;
|
|
|
|
# The recipient has a domain level alias
|
|
if ($rv == 1) {
|
|
my @row = $stm->fetchrow_array;
|
|
my $wildcard_dest = $row[0];
|
|
my ($wilduser, $wilddomain) = split(/@/, $wildcard_dest);
|
|
|
|
# Check domain alias
|
|
if ($wilduser) {
|
|
($rv, $realemail) = find_real_address ($wildcard_dest);
|
|
} else {
|
|
($rv, $realemail) = find_real_address ("$user\@$wilddomain");
|
|
}
|
|
} else {
|
|
$logger->debug("No domain level alias present for $domain / $email / $user");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return ($rv, $realemail);
|
|
}
|
|
|
|
# sends the vacation mail to the original sender.
|
|
#
|
|
sub send_vacation_email {
|
|
my ($email, $orig_from, $orig_to, $orig_messageid, $orig_subject, $test_mode) = @_;
|
|
my $logger = get_logger();
|
|
$logger->debug("Asked to send vacation reply to $email thanks to $orig_messageid");
|
|
my $query = qq{SELECT subject,body FROM vacation WHERE email=?};
|
|
my $stm = $dbh->prepare($query) or panic_prepare($query);
|
|
$stm->execute($email) or panic_execute($query,"email='$email'");
|
|
my $rv = $stm->rows;
|
|
if ($rv == 1) {
|
|
my @row = $stm->fetchrow_array;
|
|
if (already_notified($email, $orig_from) == 1) {
|
|
$logger->debug("Already notified $orig_from, or some error prevented us from doing so");
|
|
return;
|
|
}
|
|
|
|
$logger->debug("Will send vacation response for $orig_messageid: FROM: $email (orig_to: $orig_to), TO: $orig_from; VACATION SUBJECT: $row[0] ; VACATION BODY: $row[1]");
|
|
|
|
my $subject = $row[0];
|
|
$subject =~ s/\$SUBJECT/$orig_subject/g;
|
|
if ($subject ne $row[0]) {
|
|
$logger->debug("Patched Subject of vacation message to: $subject");
|
|
}
|
|
|
|
my $body = $row[1];
|
|
my $from = $email;
|
|
my $to = $orig_from;
|
|
my %smtp_connection;
|
|
%smtp_connection = (
|
|
'smtp' => $smtp_server,
|
|
'port' => $smtp_server_port,
|
|
'auth' => $smtp_auth,
|
|
'authid' => $smtp_authid,
|
|
'authpwd' => $smtp_authpwd,
|
|
'tls_allowed' => $smtp_tls_allowed,
|
|
'smtp_client' => $smtp_client,
|
|
'skip_bad_recipients' => 'true',
|
|
'encoding' => 'Base64',
|
|
'ctype' => 'text/plain; charset=UTF-8',
|
|
'headers' => 'Precedence: junk',
|
|
'headers' => 'X-Loop: Postfix Admin Virtual Vacation',
|
|
'on_errors' => 'die', # raise exception on error
|
|
);
|
|
my %mail;
|
|
%mail = (
|
|
'subject' => encode_mimewords($subject, 'Charset', 'UTF-8'),
|
|
'from' => $from,
|
|
'fake_from' => $friendly_from . " <$from>",
|
|
'to' => $to,
|
|
'msg' => encode_base64($body)
|
|
);
|
|
if($test_mode == 1) {
|
|
$logger->info("** TEST MODE ** : Vacation response sent to $to from $from subject $subject (not) sent\n");
|
|
$logger->info(%mail);
|
|
return 0;
|
|
}
|
|
eval {
|
|
$Mail::Sender::NO_X_MAILER = 1;
|
|
my $sender = new Mail::Sender({%smtp_connection});
|
|
$sender->Open({%mail});
|
|
$sender->SendLineEnc($body);
|
|
$sender->Close();
|
|
$logger->debug("Vacation response sent to $to, from $from");
|
|
};
|
|
if ($@) {
|
|
$logger->error("Failed to send vacation response: $@ / " . $Mail::Sender::Error);
|
|
}
|
|
}
|
|
}
|
|
|
|
# Convert a (list of) email address(es) from RFC 822 style addressing to
|
|
# RFC 821 style addressing. e.g. convert:
|
|
# "John Jones" <JJones@acme.com>, "Jane Doe/Sales/ACME" <JDoe@acme.com>
|
|
# to:
|
|
# jjones@acme.com, jdoe@acme.com
|
|
sub strip_address {
|
|
my ($arg) = @_;
|
|
if(!$arg) {
|
|
return '';
|
|
}
|
|
my @ok;
|
|
$logger = get_logger();
|
|
my @list;
|
|
@list = $arg =~ m/([\w\.\-\+\'\=_\^\|\$\/\{\}~\?\*\\&\!`\%]+\@[\w\.\-]+\w+)/g;
|
|
foreach(@list) {
|
|
#$logger->debug("Checking: $_");
|
|
my $temp = Email::Valid->address( -address => $_, -mxcheck => 0);
|
|
if($temp) {
|
|
push(@ok, $temp);
|
|
} else {
|
|
$logger->debug("Email not valid : $Email::Valid::Details");
|
|
}
|
|
}
|
|
# remove duplicates
|
|
my %seen = ();
|
|
my @uniq;
|
|
foreach my $item (@ok) {
|
|
push(@uniq, $item) unless $seen{$item}++
|
|
}
|
|
|
|
my $result = lc(join(', ', @uniq));
|
|
#$logger->debug("Result: $result");
|
|
return $result;
|
|
}
|
|
|
|
sub panic_prepare {
|
|
my ($arg) = @_;
|
|
my $logger = get_logger();
|
|
$logger->error("Could not prepare sql statement: '$arg'");
|
|
exit(0);
|
|
}
|
|
|
|
sub panic_execute {
|
|
my ($arg,$param) = @_;
|
|
my $logger = get_logger();
|
|
$logger->error("Could not execute sql statement - '$arg' with parameters '$param'");
|
|
exit(0);
|
|
}
|
|
|
|
# Make sure the email wasn't sent by someone who could be a mailing list etc; if it was,
|
|
# then we abort after appropriate logging.
|
|
sub check_and_clean_from_address {
|
|
my ($address) = @_;
|
|
my $logger = get_logger();
|
|
|
|
if($address =~ /^(noreply|postmaster|mailer\-daemon|listserv|majordomo|owner\-|request\-|bounces\-)/i ||
|
|
$address =~ /\-(owner|request|bounces)\@/i ||
|
|
($custom_noreply_pattern == 1 && $address =~ /^.*($noreply_pattern).*/i) ) {
|
|
$logger->debug("sender $address contains $1 - will not send vacation message");
|
|
exit(0);
|
|
}
|
|
$address = strip_address($address);
|
|
if($address eq '') {
|
|
$logger->error("Address $address is not valid; exiting");
|
|
exit(0);
|
|
}
|
|
#$logger->debug("Address cleaned up to $address");
|
|
return $address;
|
|
}
|
|
########################### main #################################
|
|
|
|
# Take headers apart
|
|
$cc = '';
|
|
$replyto = '';
|
|
|
|
$logger->debug("Script argument SMTP recipient is : '$smtp_recipient' and smtp_sender : '$smtp_sender'");
|
|
while (<STDIN>) {
|
|
last if (/^$/);
|
|
if (/^\s+(.*)/ and $lastheader) { $$lastheader .= " $1"; next; }
|
|
elsif (/^from:\s*(.*)\n$/i) { $from = $1; $lastheader = \$from; }
|
|
elsif (/^to:\s*(.*)\n$/i) { $to = $1; $lastheader = \$to; }
|
|
elsif (/^cc:\s*(.*)\n$/i) { $cc = $1; $lastheader = \$cc; }
|
|
elsif (/^Reply\-to:\s*(.*)\s*\n$/i) { $replyto = $1; $lastheader = \$replyto; }
|
|
elsif (/^subject:\s*(.*)\n$/i) { $subject = $1; $lastheader = \$subject; }
|
|
elsif (/^message\-id:\s*(.*)\s*\n$/i) { $messageid = $1; $lastheader = \$messageid; }
|
|
elsif (/^x\-spam\-(flag|status):\s+yes/i) { $logger->debug("x-spam-$1: yes found; exiting"); exit (0); }
|
|
elsif (/^x\-facebook\-notify:/i) { $logger->debug('Mail from facebook, ignoring'); exit(0); }
|
|
elsif (/^precedence:\s+(bulk|list|junk)/i) { $logger->debug("precedence: $1 found; exiting"); exit (0); }
|
|
elsif (/^x\-loop:\s+postfix\ admin\ virtual\ vacation/i) { $logger->debug('x-loop: postfix admin virtual vacation found; exiting'); exit (0); }
|
|
elsif (/^Auto\-Submitted:\s*no/i) { next; }
|
|
elsif (/^Auto\-Submitted:/i) { $logger->debug('Auto-Submitted: something found; exiting'); exit (0); }
|
|
elsif (/^List\-(Id|Post|Unsubscribe):/i) { $logger->debug("List-$1: found; exiting"); exit (0); }
|
|
elsif (/^(x\-(barracuda\-)?spam\-status):\s+(yes)/i) { $logger->debug("$1: $3 found; exiting"); exit (0); }
|
|
elsif (/^(x\-dspam\-result):\s+(spam|bl[ao]cklisted)/i) { $logger->debug("$1: $2 found; exiting"); exit (0); }
|
|
elsif (/^(x\-(anti|avas\-)?virus\-status):\s+(infected)/i) { $logger->debug("$1: $3 found; exiting"); exit (0); }
|
|
elsif (/^(x\-(avas\-spam|spamtest|crm114|razor|pyzor)\-status):\s+(spam)/i) { $logger->debug("$1: $3 found; exiting"); exit (0); }
|
|
elsif (/^(x\-osbf\-lua\-score):\s+[0-9\/\.\-\+]+\s+\[([-S])\]/i) { $logger->debug("$1: $2 found; exiting"); exit (0); }
|
|
else {$lastheader = '' ; }
|
|
}
|
|
|
|
if($smtp_recipient =~ /\@$vacation_domain/) {
|
|
# the regexp used here could probably be improved somewhat, for now hope that people won't use # as a valid mailbox character.
|
|
my $tmp = $smtp_recipient;
|
|
$tmp =~ s/\@$vacation_domain//;
|
|
$tmp =~ s/#/\@/;
|
|
$logger->debug("Converted autoreply mailbox back to normal style - from $smtp_recipient to $tmp");
|
|
$smtp_recipient = $tmp;
|
|
undef $tmp;
|
|
}
|
|
|
|
# If either From: or To: are not set, exit
|
|
if(!$from || !$to || !$messageid || !$smtp_sender || !$smtp_recipient) {
|
|
$logger->info("One of from=$from, to=$to, messageid=$messageid, smtp sender=$smtp_sender, smtp recipient=$smtp_recipient empty");
|
|
exit(0);
|
|
}
|
|
$logger->debug("Email headers have to: '$to' and From: '$from'");
|
|
$to = strip_address($to);
|
|
$cc = strip_address($cc);
|
|
$from = check_and_clean_from_address($from);
|
|
if($replyto ne '') {
|
|
# if reply-to is invalid, or looks like a mailing list, then we probably don't want to send a reply.
|
|
$replyto = check_and_clean_from_address($replyto);
|
|
}
|
|
$smtp_sender = check_and_clean_from_address($smtp_sender);
|
|
$smtp_recipient = check_and_clean_from_address($smtp_recipient);
|
|
|
|
if ($smtp_sender eq $smtp_recipient) {
|
|
$logger->debug("smtp sender $smtp_sender and recipient $smtp_recipient are the same; aborting");
|
|
exit(0);
|
|
}
|
|
|
|
for (split(/,\s*/, lc($to)), split(/,\s*/, lc($cc))) {
|
|
my $header_recipient = strip_address($_);
|
|
if ($smtp_sender eq $header_recipient) {
|
|
$logger->debug("sender header $smtp_sender contains recipient $header_recipient (mailing myself?)");
|
|
exit(0);
|
|
}
|
|
}
|
|
|
|
my ($rv, $email) = find_real_address($smtp_recipient);
|
|
if ($rv == 1) {
|
|
$logger->debug("Attempting to send vacation response for: $messageid to: $smtp_sender, $smtp_recipient, $email (test_mode = $test_mode)");
|
|
send_vacation_email($email, $smtp_sender, $smtp_recipient, $messageid, $subject, $test_mode);
|
|
} else {
|
|
$logger->debug("SMTP recipient $smtp_recipient which resolves to $email does not have an active vacation (rv: $rv, email: $email)");
|
|
}
|
|
|
|
0;
|
|
|
|
#/* vim: set expandtab softtabstop=4 tabstop=4 shiftwidth=4: */
|