From 0a27014ee8ba24a3ca3d78cefdeda8ba391e42ba Mon Sep 17 00:00:00 2001
From: Peter Palfrader <peter@palfrader.org>
Date: Mon, 6 Mar 2006 15:10:03 +0000
Subject: Tag as release_2_1_8-4, again

---
 trunk/Echolot/Pinger/Mix.pm | 139 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 trunk/Echolot/Pinger/Mix.pm

(limited to 'trunk/Echolot/Pinger/Mix.pm')

diff --git a/trunk/Echolot/Pinger/Mix.pm b/trunk/Echolot/Pinger/Mix.pm
new file mode 100644
index 0000000..66eaf25
--- /dev/null
+++ b/trunk/Echolot/Pinger/Mix.pm
@@ -0,0 +1,139 @@
+package Echolot::Pinger::Mix;
+
+#
+# $Id$
+#
+# This file is part of Echolot - a Pinger for anonymous remailers.
+#
+# Copyright (c) 2002, 2003, 2004 Peter Palfrader <peter@palfrader.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 2 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, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+#
+
+=pod
+
+=head1 Name
+
+Echolot::Pinger::Mix - send mix pings
+
+=head1 DESCRIPTION
+
+This package provides functions for sending mixmaster (type II) pings.
+
+=cut
+
+use strict;
+use English;
+use IO::Handle;
+use Echolot::Log;
+
+sub ping($$$$$) {
+	my ($body, $to, $with_from, $chain, $keys) = @_;
+
+	my $chaincomma = join (',', @$chain);
+
+	my $keyring = Echolot::Config::get()->{'mixhome'}.'/pubring.mix';
+	open (F, '>'.$keyring) or
+		Echolot::Log::warn("Cannot open $keyring for writing: $!."),
+		return 0;
+	for my $keyid (keys %$keys) {
+		print (F $keys->{$keyid}->{'summary'}, "\n\n");
+		print (F $keys->{$keyid}->{'key'},"\n\n");
+	};
+	close (F) or
+		Echolot::Log::warn("Cannot close $keyring: $!."),
+		return 0;
+
+	my $type2list = Echolot::Config::get()->{'mixhome'}.'/type2.list';
+	open (F, '>'.$type2list) or
+		Echolot::Log::warn("Cannot open $type2list for writing: $!."),
+		return 0;
+	for my $keyid (keys %$keys) {
+		print (F $keys->{$keyid}->{'summary'}, "\n");
+	};
+	close (F) or
+		Echolot::Log::warn("Cannot close $type2list: $!."),
+		return 0;
+	
+	my $mixcfg = Echolot::Config::get()->{'mixhome'}.'/mix.cfg';
+	my $address = Echolot::Config::get()->{'my_localpart'} . '@' .
+	              Echolot::Config::get()->{'my_domain'};
+	my $sendmail = Echolot::Config::get()->{'sendmail'};
+	open (F, ">$mixcfg") or
+		Echolot::Log::warn("Cannot open $mixcfg for writing: $!."),
+		return 0;
+	print (F "REMAIL          n\n");
+	print (F "NAME            Echolot Pinger\n");
+	print (F "ADDRESS         $address\n");
+	print (F "PUBRING         pubring.mix\n");
+	print (F "TYPE2LIST       type2.list\n");
+	print (F "SENDMAIL        $sendmail -f $address -t\n");
+	print (F "VERBOSE         0\n");
+	print (F "INDUMMYP        0\n");
+	print (F "OUTDUMMYP       0\n");
+	close (F) or
+		Echolot::Log::warn("Cannot close $mixcfg: $!."),
+		return 0;
+	
+	my ($stdinR, $stdinW) = (IO::Handle->new(), IO::Handle->new());
+	my ($stdoutR, $stdoutW) = (IO::Handle->new(), IO::Handle->new());
+	my ($stderrR, $stderrW) = (IO::Handle->new(), IO::Handle->new());
+	pipe $stdinR, $stdinW;
+	pipe $stdoutR, $stdoutW;
+	pipe $stderrR, $stderrW;
+	my $pid = fork();
+	defined $pid or
+		Echolot::Log::warn("Cannot fork for calling mixmaster: $!."),
+		return 0;
+	unless ($pid) { # child
+		$stdinW->close;
+		$stdoutR->close;
+		$stderrR->close;
+		close STDIN;
+		close STDOUT;
+		close STDERR;
+		open (STDIN, "<&".$stdinR->fileno) or Echolot::Log::warn ("Cannot dup stdinR (fd ".$stdinR->fileno.") as STDIN: $!");
+		open (STDOUT, ">&".$stdoutW->fileno) or Echolot::Log::warn ("Cannot dup stdoutW (fd ".$stdoutW->fileno.") as STDOUT: $!");
+		open (STDERR, ">&".$stderrW->fileno) or Echolot::Log::warn ("Cannot dup stderrW (fd ".$stderrW->fileno.") as STDERE: $!");
+		$ENV{'MIXPATH'} = Echolot::Config::get()->{'mixhome'};
+		{ exec(Echolot::Config::get()->{'mixmaster'}, qw{-m -S -l}, $chaincomma); };
+		Echolot::Log::warn("Cannot exec mixpinger: $!.");
+		exit(1);
+	};
+	$stdinR->close;
+	$stdoutW->close;
+	$stderrW->close;
+
+	my $msg;
+	$msg .= "From: Echolot Pinger <$address>\n" if $with_from;
+	$msg .= "To: $to\n\n$body\n";
+
+	Echolot::Log::debug("mixping: fds: stdinW $stdinW; stdoutR $stdoutR; stderrR $stderrR."),
+	my ($stdout, $stderr, undef) = Echolot::Tools::readwrite_gpg($msg, $stdinW, $stdoutR, $stderrR, undef);
+	waitpid $pid, 0;
+
+	$stderr =~ s/\n+$//;
+	Echolot::Log::debug("Mixmaster said on unfiltered stderr: $stderr") if ($stderr ne '');
+	$stderr =~ s/^Chain: .*//mg;
+	$stderr =~ s/^Warning: The message has a From: line.*//mg;
+	$stderr =~ s/\n+$//;
+	Echolot::Log::info("Mixmaster said on stdout: $stdout") if ($stdout ne '');
+	Echolot::Log::warn("Mixmaster said on stderr: $stderr") if ($stderr ne '');
+
+	return 1;
+};
+
+1;
+# vim: set ts=4 shiftwidth=4:
-- 
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