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#!/usr/bin/perl
#----------------------------------------------------------------------
# Generate a random mbox
# Copyright © 2019 Guilhem Moulin <guilhem@fripost.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#----------------------------------------------------------------------
use warnings;
use strict;
use Time::HiRes ();
use POSIX qw{strftime setlocale};
use Crypt::URandom "urandom";
setlocale(POSIX::LC_TIME, "C");
foreach (qw/cur new tmp/) {
my $d = $ARGV[0] ."/". $_;
mkdir $d, 0700 or die "mkdir: $!"
}
my $NEW = $ARGV[0] ."/new";
for (my $i = 0; $i < $ARGV[1]; $i++) {
my $timestamp = Time::HiRes::gettimeofday();
my $filename = sprintf("%10d.M%010d.localhost", $timestamp, $i);
open my $out, ">", $NEW ."/". $filename or die "open: $!";
my $message_id = sprintf "%.10f\@example.net", $timestamp;
my $sender = unpack("H*", urandom(8))."\@example.net";
print $out
"From: <$sender>\r\n"
. "To: <recipient\@example.net> \r\n"
. "Subject: Hello world! \r\n"
. "Date: ". strftime("%a, %e %b %Y %H:%M:%S %z", localtime($timestamp)). "\r\n"
. "Message-ID: ". sprintf("<%.10f\@example.net>", $timestamp)."\r\n"
. "\r\n";
my $len = 1 + int(rand(4095));
my $body = unpack("H*", urandom($len));
for (my $i = 0; $i < 2*$len; $i += 70) {
print $out substr($body, $i, 70), "\r\n";
}
close($out);
}
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