JezK
Edit File: mailfs
#! /usr/bin/perl -w use bytes; # MC extfs for (possibly compressed) Berkeley style mailbox files # Peter Daum <gator@cs.tu-berlin.de> (Jan 1998, mc-4.1.24) $zcat="zcat"; # gunzip to stdout $bzcat="bzip2 -dc"; # bunzip2 to stdout $lzipcat="lzip -dc"; # unlzip to stdout $lz4cat="lz4 -dc"; # unlz4 to stdout $lzcat="lzma -dc"; # unlzma to stdout $xzcat="xz -dc"; # unxz to stdout $zstdcat="zstd -dc"; # unzstd to stdout $file="file"; # "file" command $TZ='GMT'; # default timezone (for Date module) if (eval "require Date::Parse") { import Date::Parse; $parse_date= sub { local $ftime = str2time($_[0],$TZ); $_ = localtime($ftime); /^(...) (...) ([ \d]\d) (\d\d:\d\d):\d\d (\d\d\d\d)$/; if ($ftime + 6 * 30 * 24 * 60 * 60 < $now || $ftime + 60 * 60 > $now) { return "$2 $3 $5"; } else { return "$2 $3 $4"; } } } elsif (eval "require Date::Manip") { import Date::Manip; $parse_date= sub { return UnixDate($_[0], "%l"); # "ls -l" format } } else { # use "light" version $parse_date= sub { local $mstring='GeeJanFebMarAprMayJunJulAugSepOctNovDec'; # assumes something like: Mon, 5 Jan 1998 16:08:19 +0200 (GMT+0200) # if you have mails with another date format, add it here if (/(\d\d?) ([A-Z][a-z][a-z]) (\d\d\d\d) (\d\d?):(\d\d)/) { $day = $1; $month = $2; $mon = index($mstring,$month) / 3; $year = $3; $hour = $4; $min = $5; # pass time not year for files younger than roughly 6 months # but not for files with dates more than 1-2 hours in the future if ($year * 12 + $mon > $thisyear * 12 + $thismon - 7 && $year * 12 + $mon <= $thisyear * 12 + $thismon && ! (($year * 12 + $mon) * 31 + $day == ($thisyear * 12 + $thismon) * 31 + $thisday && $hour > $thishour + 2)) { return "$month $day $hour:$min"; } else { return "$month $day $year"; } } # Y2K bug. # Date: Mon, 27 Mar 100 16:30:47 +0000 (GMT) if (/(\d\d?) ([A-Z][a-z][a-z]) (1?\d\d) (\d\d?):(\d\d)/) { $day = $1; $month = $2; $mon = index($mstring,$month) / 3; $year = 1900 + $3; $hour = $4; $min = $5; if ($year < 1970) { $year += 100; } if ($year * 12 + $mon > $thisyear * 12 + $thismon - 7 && $year * 12 + $mon <= $thisyear * 12 + $thismon && ! (($year * 12 + $mon) * 31 + $day == ($thisyear * 12 + $thismon) * 31 + $thisday && $hour > $thishour + 2)) { return "$month $day $hour:$min"; } else { return "$month $day $year"; } } # AOLMail(SM). # Date: Sat Jul 01 10:06:06 2000 if (/([A-Z][a-z][a-z]) (\d\d?) (\d\d?):(\d\d)(:\d\d)? (\d\d\d\d)/) { $month = $1; $mon = index($mstring,$month) / 3; $day = $2; $hour = $3; $min = $4; $year = $6; if ($year * 12 + $mon > $thisyear * 12 + $thismon - 7 && $year * 12 + $mon <= $thisyear * 12 + $thismon && ! (($year * 12 + $mon) * 31 + $day == ($thisyear * 12 + $thismon) * 31 + $thisday && $hour > $thishour + 2)) { return "$month $day $hour:$min"; } else { return "$month $day $year"; } } # Fallback return $fallback; } } sub process_header { while (<IN>) { $size+=length; s/\r$//; last if /^$/; die "unexpected EOF\n" if eof; if (/^date:\s(.*)$/i) { $date=&$parse_date($1); } elsif (/^subject:\s(.*)$/i) { $subj=lc($1); $subj=~ s/^(re:\s?)+//gi; # no leading Re: $subj=~ tr/a-zA-Z0-9//cd; # strip all "special" characters } elsif (/^from:\s.*?(\w+)\@/i) { $from=$1; } elsif (/^to:\s.*?(\w+)\@/i) { $to=lc($1); } } } sub print_dir_line { $from=$to if ($from eq $user); # otherwise, it would look pretty boring $date=localtime(time) if (!defined $date); printf "-r-------- 1 $< $< %d %s %3.3d_%.25s\n", $size, $date, $msg_nr, "${from}_${subj}"; } sub mailfs_list { my $blank = 1; $user=$ENV{USER}||getlogin||getpwuid($<) || "nobody"; while(<IN>) { s/\r$//; if($blank && /^from\s+\w+(\.\w+)*@/i) { # Start of header print_dir_line unless (!$msg_nr); $size=length; $msg_nr++; ($from,$to,$subj,$date)=("none","none","none", "01-01-80"); process_header; $line=$blank=0; } else { $size+=length; $line++; $blank= /^$/; } } print_dir_line unless (!$msg_nr); exit 0; } sub mailfs_copyout { my($source,$dest)=@_; exit 1 unless (open STDOUT, ">$dest"); ($nr)= ($source =~ /^(\d+)/); # extract message number from "filename" my $blank = 1; while(<IN>) { s/\r$//; if($blank && /^from\s+\w+(\.\w+)*@/i) { $msg_nr++; exit(0) if ($msg_nr > $nr); $blank= 0; } else { $blank= /^$/; } print if ($msg_nr == $nr); } } # main { exit 1 unless ($#ARGV >= 1); $msg_nr=0; $cmd=shift; $mbox_name=shift; my $mbox_qname = quotemeta ($mbox_name); $_=`$file $mbox_qname`; if (/gzip/) { exit 1 unless (open IN, "$zcat $mbox_qname|"); } elsif (/bzip/) { exit 1 unless (open IN, "$bzcat $mbox_qname|"); } elsif (/lzip/) { exit 1 unless (open IN, "$lzipcat $mbox_qname|"); } elsif (/lz4/) { exit 1 unless (open IN, "$lz4cat $mbox_qname|"); } elsif (/lzma/) { exit 1 unless (open IN, "$lzcat $mbox_qname|"); } elsif (/xz/) { exit 1 unless (open IN, "$xzcat $mbox_qname|"); } elsif (/zst/) { exit 1 unless (open IN, "$zstdcat $mbox_qname|"); } else { exit 1 unless (open IN, "<$mbox_name"); } umask 077; if($cmd eq "list") { $now = time; $_ = localtime($now); /^... (... [ \d]\d \d\d:\d\d):\d\d \d\d\d\d$/; $fallback = $1; $nowstring=`date "+%Y %m %d %H"`; ($thisyear, $thismon, $thisday, $thishour) = split(/ /, $nowstring); &mailfs_list; exit 0; } elsif($cmd eq "copyout") { &mailfs_copyout(@ARGV); exit 0; } exit 1;