mirror of
https://github.com/MailScanner/v5.git
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344 lines
10 KiB
Perl
344 lines
10 KiB
Perl
#!/usr/bin/perl
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#
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# MailScanner - SMTP Email Processor
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# Copyright (C) 2002 Julian Field
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#
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# $Id: ms-upgrade-conf 4896 2009-08-11 09:26:05Z sysjkf $
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# https://www.mailscanner.info
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#
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#
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# This script will output the contents of a new MailScanner.conf file based
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# on an old MailScanner.conf file and a default copy of the new file.
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# It is designed for upgrading MailScanner.conf files from one release of
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# version 4 to another release of version 4. It will not help with the upgrade
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# from version 3 or earlier to version 4, you still have to do that by hand.
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#
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use FileHandle;
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use strict;
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my $config = "mailscanner";
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my $filedot = "MailScanner.conf";
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my $filenew = "MailScanner.new";
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my $fileold = "MailScanner.old";
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my $filescore = "MailScanner_conf";
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if ($0 =~ /languages?.conf$/i) {
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$config = "languages";
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$filedot = "languages.conf";
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$filenew = "languages.new";
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$fileold = "languages.old";
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$filescore = "languages_conf";
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}
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sub Usage {
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if ($config eq "mailscanner") {
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print STDERR <<EOU;
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Usage:
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Upgrading a File
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===
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cd /etc/MailScanner
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ms-upgrade-conf MailScanner.conf MailScanner.conf.rpmnew > MailScanner.new
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mv -f MailScanner.conf MailScanner.old
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mv -f MailScanner.new MailScanner.conf
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NOTE
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====
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To keep your old comments in your original file, add "--keep-comments"
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to the command line. Note that this will mean you don't get to find
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out any extra new values you might be able to use in existing "improved"
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configuration options.
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EOU
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} else {
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print STDERR <<EOLANG;
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Usage:
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cd /usr/share/MailScanner/reports/en
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upgrade_languages_conf languages.conf languages.conf.rpmnew > languages.new
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mv -f languages.conf languages.old
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mv -f languages.new languages.conf
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NOTE
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====
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To keep your old comments in your original file, add "--keep-comments"
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to the command line. Note that this will mean you don't get to find
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out any extra new values you might be able to use in existing "improved"
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configuration options.
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EOLANG
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}
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}
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sub Afterwards {
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print STDERR "\nOnce you have checked that MailScanner.new contains what\n";
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print STDERR "you want, you can then save your old one and move the new\n";
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print STDERR "one into place, using commands like these:\n";
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print STDERR " mv -f $filedot $fileold\n";
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print STDERR " mv -f $filenew $filedot\n";
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}
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my $keepcomments = 0;
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my $i = 0;
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while($i<@ARGV) {
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#print STDERR "Option $i is " . $ARGV[$i] . "\n";
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# Match anything vaguely like the correct option
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if ($ARGV[$i] =~ /keep-?com+ent/i) {
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#print STDERR "Found it\n";
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splice @ARGV, $i, 1;
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$keepcomments = 1;
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next;
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}
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$i++;
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}
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my $oldfname = shift;
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my $newfname = shift;
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unless ($oldfname && $newfname &&
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-f $oldfname && -f $newfname &&
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-s $oldfname && -s $newfname) {
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Usage();
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if ($newfname) {
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# We are really trying to do the upgrade, we have a complete command-line
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unless (-f $newfname && -s $newfname) {
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# Either the .rpmnew doesn't exist, or it's empty
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print STDERR "No .rpmnew file, so just copying your existing .conf file.\n";
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system("cat $oldfname"); # Copy the original .conf to the stdout redirect
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}
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}
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exit 1;
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}
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# Read in the old file to get all their current settings
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my $oldfh = new FileHandle;
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$oldfh->open($oldfname)
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or die "Cannot read old $filedot file $oldfname, $!";
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my($key, $value, $origkey, $origline, %oldsettings, $ReadOldValue, %oldkeys);
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my(%oldcomments, $comments);
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$ReadOldValue = 0;
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$comments = "";
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while(<$oldfh>) {
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chomp;
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$origline = $_;
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s/#.*$//;
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s/^\s+//;
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s/\s+$//;
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s/^include *([^=]*)$//i; # Treat include lines as comments!
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($comments .= "$origline\n"),next if /^$/;
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undef $origkey;
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undef $key;
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undef $value;
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/^(.*?)\s*=/; # \s*(.*)$/;
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$origkey = $1;
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$origline =~ /=\s*(.*)$/;
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$value = $1;
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# Exception cases
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($comments="",next) if $origkey =~ /MailScanner\s*Version\s*Number/i;
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$key = lc($origkey);
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if ($key =~ /%/) {
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$key =~ s/[^a-z0-9%-]//g; # Leave numbers and letters and % and - only
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} else {
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$key =~ s/[^a-z0-9]//g; # Leave numbers and letters only
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}
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$oldsettings{$key} = $value;
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$oldkeys{$key} = $origkey;
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$oldcomments{$key} = $comments;
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$comments = "";
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$ReadOldValue++;
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}
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$oldfh->close();
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# Do sanity checks only if we are ms-upgrade-conf, not for languages
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if ($config eq 'mailscanner') {
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# Watch for broken settings in the Monitors for Sophos Updates option.
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unless ($oldsettings{'monitorsforsophosupdates'} =~ /sophos-av/ &&
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$oldsettings{'sophosidedir'} =~ /sophos-av/ &&
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$oldsettings{'sophoslibdir'} =~ /sophos-av/) {
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print STDERR "\a\n";
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print STDERR "Important Note\n--------------\n";
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print STDERR "Your settings for the Sophos SAVI virus scanner are probably\n";
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print STDERR "broken. They should look like this (unless your Sophos is\n";
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print STDERR "installed somewhere else)\n";
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print STDERR "Sophos IDE Dir = /opt/sophos-av/lib/sav\n";
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print STDERR "Sophos Lib Dir = /opt/sophos-av/lib\n";
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print STDERR "Monitors for Sophos Updates = /opt/sophos-av/lib/sav/*.ide\n";
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print STDERR "\a\n";
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sleep(5);
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}
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# Watch for broken settings in the Monitors for ClamAV Updates option.
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unless ($oldsettings{'monitorsforclamavupdates'} =~ /cld/ &&
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$oldsettings{'monitorsforclamavupdates'} =~ /cvd/) {
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print STDERR "\a\n";
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print STDERR "Important Note\n--------------\n";
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print STDERR "Your setting for 'Monitors for ClamAV Updates' is broken.\n";
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print STDERR "It should look like this (unless your ClamAV is installed\n";
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print STDERR "somewhere else)\n";
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print STDERR "Monitors for ClamAV Updates = /usr/local/share/clamav/*.cld /usr/local/share/clamav/*.cvd\n";
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print STDERR "\a\n";
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sleep(5);
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}
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# Watch for small "Maximum Archive Depth" settings.
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if ($oldsettings{'maximumarchivedepth'} > 0 &&
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$oldsettings{'maximumarchivedepth'} < 3) {
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print STDERR "\a\n";
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print STDERR "Important Note\n--------------\n";
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print STDERR "Your setting for 'Maximum Archive Depth' is very low.\n";
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print STDERR "When expanding archives, Microsoft Office documents are\n";
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print STDERR "handled the same way as zip and rar archives.\n";
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print STDERR "A setting as low as your current value (" .
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$oldsettings{'maximumarchivedepth'} . ") is likely to\n";
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print STDERR "cause a lot of messages blocked with a report that the\n";
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print STDERR "\"Message contained archive nested too deeply\".\n";
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print STDERR "This will needlessly irritate a lot of your users as\n";
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print STDERR "their files will be blocked.\n";
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print STDERR "Please manually set it to at least 3 or 4, after moving into\n";
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print STDERR "place the new MailScanner.conf file I am writing for you.\n";
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print STDERR "\a\n";
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sleep(1);
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print STDERR "\a";
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sleep(1);
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print STDERR "\a";
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sleep(5);
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}
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}
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# Read in the new file to get all the default settings and new key names
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my $newfh = new FileHandle;
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$newfh->open($newfname)
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or die "Cannot read new default $filedot file $newfname, $!";
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my($defaultvalue, $UsedOldValue, $UsedDefaultValue, $nonpercent, $donepercents);
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$UsedOldValue = 0;
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$UsedDefaultValue = 0;
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$comments = "";
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$nonpercent = 0;
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$donepercents = 0;
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while(<$newfh>) {
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chomp;
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$origline = $_;
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s/#.*$//;
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s/^\s+//;
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s/\s+$//;
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($comments .= "$origline\n"),next if /^$/;
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undef $origkey;
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undef $key;
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undef $defaultvalue;
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/^(.*?)\s*=/; # \s*(.*)$/;
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$origkey = $1;
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/=\s*(.*)$/;
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$defaultvalue = $1;
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$nonpercent = 1 unless $origkey =~ /^%/;
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# Retain all their %variable% settings
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if ($nonpercent && !$donepercents) {
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# We have hit the first non-%variable% so output all the remaining %%
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my $firstvalue = 1;
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foreach $origkey (keys %oldsettings) {
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next unless $origkey =~ /^%/;
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if ($firstvalue) {
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print "\n";
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$firstvalue = 0;
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}
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print $oldcomments{$origkey};
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print "$origkey = $oldsettings{$origkey}\n";
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delete $oldsettings{$origkey};
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$UsedOldValue++;
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}
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$donepercents = 1;
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}
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$key = lc($origkey);
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if ($key =~ /%/) {
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$key =~ s/[^a-z0-9%-]//g; # Leave numbers and letters and % and - only
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} else {
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$key =~ s/[^a-z0-9]//g; # Leave numbers and letters only
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}
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# Exception to force everyone with the default to change. Silently...
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#if ($oldsettings{'webbugreplacement'} =~ /mailscanner\.info/i) {
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delete $oldsettings{'webbugreplacement'};
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#}
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# Force new lockfile directory into existence.
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delete $oldsettings{'lockfiledir'};
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if (exists $oldsettings{$key}) {
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# They previously had a setting for this parameter
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print $keepcomments?$oldcomments{$key}:$comments;
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print "$origkey = $oldsettings{$key}\n";
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delete $oldsettings{$key};
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$comments = "";
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$UsedOldValue++;
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} else {
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# they are using the new default value for this parameter
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print $comments;
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print "$origline\n";
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# Exception cases
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print STDERR "Added new: $origline\n"
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unless $key =~ /MailScanner\s*Version\s*Number/i;
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sleep(2);
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$comments = "";
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$UsedDefaultValue++;
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}
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}
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$newfh->close();
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while (($key, $value) = each %oldsettings) {
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print STDERR "Removed old: $oldkeys{$key} = $value\n";
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sleep(2);
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}
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print STDERR <<EOL;
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Summary
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-------
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Read $ReadOldValue settings from old $oldfname
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Used $UsedOldValue settings from old $oldfname
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Used $UsedDefaultValue default settings from new $newfname
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Notes
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-----
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I would advise you to check on any parameters which are different between
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the default new conf file and the conf file you just created, so that you
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find any parameters whose default values have changed.
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If you ran this with a command like this
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upgrade_$filescore $filedot $filedot.rpmnew > $filenew
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then you should do
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diff -w $filedot.rpmnew $filenew
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and check for any differences in values you have not changed yourself.
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EOL
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sleep(5);
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Afterwards();
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exit 0;
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