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Edit File: maildir_converter
#!/usr/local/cpanel/3rdparty/bin/perl # cpanel - scripts/maildir_converter Copyright 2022 cPanel, L.L.C. # All rights reserved. # copyright@cpanel.net http://cpanel.net # This code is subject to the cPanel license. Unauthorized copying is prohibited use strict; use Cpanel::PwCache::PwEnt (); use Cpanel::AccessIds::SetUids (); use Cpanel::Config::Users (); use Cpanel::Binaries (); use Cpanel::Usage (); use Cpanel::SafeRun::Errors (); use Cpanel::Sys::Setsid::Fast (); $| = 1; my $do_conversion = 0; my $to_dovecot = 0; my $to_courier = 0; my $overwrite = 0; # Argument processing my %opts = ( 'forreal' => \$do_conversion, 'overwrite' => \$overwrite, 'to-dovecot' => \$to_dovecot, 'to-courier' => \$to_courier, ); Cpanel::Usage::wrap_options( \@ARGV, \&usage, \%opts ); if ( $to_dovecot && $to_courier ) { print "Can not convert to dovecot and to courier at the same time!\n"; exit 1; } if ( $> != 0 ) { die "Conversion process must be performed as root"; } @ARGV = ( grep( !/^--/, @ARGV ) ); my @users = Cpanel::Config::Users::getcpusers(); my %USERS = map { $_ => 1 } @users; my @CARGS; push @CARGS, '--convert' if ($do_conversion); push @CARGS, '--overwrite' if ($overwrite); push @CARGS, '--to-dovecot' if ($to_dovecot); push @CARGS, '--to-courier' if ($to_courier); my $convertuser = $ARGV[0]; my $now = time(); unless ( -d '/var/cpanel/logs' ) { mkdir '/var/cpanel/logs' || die "Couldn't create /var/cpanel/logs directory: $!"; chmod oct(700), '/var/cpanel/logs' || die "Couldn't set permissions on /var/cpanel/logs directory: $!"; } my $old_umask = umask(0077); # Case 92381: Logs should not be world-readable. open my $log_fh, '>', '/var/cpanel/logs/imap_conversion.log.' . $now; umask($old_umask); if ( !$log_fh ) { die "Couldn't open log file: $!"; } my @conversion_failures; $SIG{'INT'} = $SIG{'HUP'} = sub { print "maildir_converter Ignoring signal to avoid mail corruption\n"; return; }; my $quotaon_cmd = Cpanel::Binaries::path('quotaon'); my $quotaoff_cmd = Cpanel::Binaries::path('quotaoff'); # Disable quotas if ( -x $quotaoff_cmd ) { system $quotaoff_cmd, '-a'; } Cpanel::PwCache::PwEnt::setpwent(); while ( my @PW = Cpanel::PwCache::PwEnt::getpwent() ) { my ( $user, $uid, $gid, $homedir ) = @PW[ 0, 2, 3, 7 ]; next if ( $convertuser && $user ne $convertuser ); next if ( !exists $USERS{$user} ); $homedir =~ /(.*)/; # Untaint $homedir = $1; if ( !-d $homedir ) { next; } my @maildirs = find_maildirs($homedir); foreach my $dir (@maildirs) { $dir =~ /(.*)/; $dir = $1; print "Converting $dir..."; if ( my $pid = fork() ) { #parent waitpid( $pid, 0 ); my $exitcode = $?; if ($exitcode) { print "failed\n"; push @conversion_failures, $user . ':' . $dir . ':' . $now . "\n"; } else { print "ok\n"; } } else { Cpanel::Sys::Setsid::Fast::fast_setsid(); Cpanel::AccessIds::SetUids::setuids( $uid, $gid ); chdir $dir || exit 1; my $output = Cpanel::SafeRun::Errors::saferunallerrors( '/usr/local/cpanel/bin/maildir-migrate', @CARGS, '--recursive' ); print $log_fh "\nDirectory: $dir\n"; print $log_fh join( ' ', '/usr/local/cpanel/bin/maildir-migrate', @CARGS, '--recursive' ) . "\n"; print $log_fh $output . "\n"; my $exitcode = $?; exit $exitcode >> 8; } } } Cpanel::PwCache::PwEnt::endpwent(); close $log_fh; # Restore quotas if ( -x $quotaon_cmd ) { system $quotaon_cmd, '-a'; } if ( scalar @conversion_failures ) { my $old_umask = umask(0077); # Case 92381: Logs should not be world-readable. open my $failure_fh, '>>', '/var/cpanel/logs/imap_conversion_failures'; umask($old_umask); if ( !$failure_fh ) { die "Couldn't open log file: $!"; } print $failure_fh @conversion_failures; close $failure_fh; print "\nSome failures were encountered during maildir conversion process.\n"; print "Full log available at: /var/cpanel/logs/imap_conversion.log.$now\n"; exit 1; } exit 0; sub find_maildirs { my $homedir = shift; my @maildirs; if ( -d $homedir . '/mail/cur' && -d $homedir . '/mail/new' ) { push @maildirs, $homedir . '/mail'; if ( opendir( my $base_dh, $homedir . '/mail' ) ) { my @base_dirlist = readdir($base_dh); closedir $base_dh; foreach my $base_dir (@base_dirlist) { next if ( $base_dir =~ /^(?:\.|cur\Z|tmp\Z|new\Z)/ ); next unless ( -d $homedir . '/mail/' . $base_dir ); if ( opendir( my $sub_dh, $homedir . '/mail/' . $base_dir ) ) { my @sub_dirlist = readdir($sub_dh); closedir $sub_dh; foreach my $sub_dir (@sub_dirlist) { next if ( $sub_dir =~ /^\./ ); next unless ( -d $homedir . '/mail/' . $base_dir . '/' . $sub_dir . '/cur' && -d $homedir . '/mail/' . $base_dir . '/' . $sub_dir . '/new' ); push @maildirs, $homedir . '/mail/' . $base_dir . '/' . $sub_dir; } } } } } return @maildirs; } sub usage { print "Usage: maildir_converter [options] [user]\n\n"; print "Options:\n"; print " --forreal Perform conversion\n"; print " --overwrite Overwrite existing files\n"; print " --to-dovecot Conversion is from Courier to Dovecot\n"; print " --to-courier Conversion is from Dovecot to Courier\n"; print "\n"; print "If no user is specified, maildirs for all accounts will be converted.\n"; print "\n"; print "When direction over conversion (dovecot/courier) is not specified\n"; print "maildir files will be updated based on relative timestamps.\n"; exit 0; }