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authorPeter Palfrader <peter@palfrader.org>2006-03-06 15:10:03 +0000
committerPeter Palfrader <peter@palfrader.org>2006-03-06 15:10:03 +0000
commit0a27014ee8ba24a3ca3d78cefdeda8ba391e42ba (patch)
tree2d08c30a4ece1139d9f203be2ecc3b25a45bfec4 /trunk/Echolot/Pinger
parent0468b8a264c429c66a92ff56e012f6f794603f09 (diff)
Tag as release_2_1_8-4, againecholot-2.1.8-4
Diffstat (limited to 'trunk/Echolot/Pinger')
-rw-r--r--trunk/Echolot/Pinger/CPunk.pm205
-rw-r--r--trunk/Echolot/Pinger/Mix.pm139
2 files changed, 344 insertions, 0 deletions
diff --git a/trunk/Echolot/Pinger/CPunk.pm b/trunk/Echolot/Pinger/CPunk.pm
new file mode 100644
index 0000000..6cac797
--- /dev/null
+++ b/trunk/Echolot/Pinger/CPunk.pm
@@ -0,0 +1,205 @@
+package Echolot::Pinger::CPunk;
+
+#
+# $Id$
+#
+# 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::CPunk - send cypherpunk pings
+
+=head1 DESCRIPTION
+
+This package provides functions for sending cypherpunk (type I) pings.
+
+=cut
+
+use strict;
+use English;
+use GnuPG::Interface;
+use Echolot::Log;
+
+sub encrypt_to($$$$) {
+ my ($msg, $recipient, $keys, $pgp2compat) = @_;
+
+ (defined $keys->{$recipient}) or
+ Echolot::Log::warn("Key for recipient $recipient is not defined."),
+ return undef;
+ (defined $keys->{$recipient}->{'key'}) or
+ Echolot::Log::warn("Key->key for recipient $recipient is not defined."),
+ return undef;
+ my $keyring = Echolot::Config::get()->{'tmpdir'}.'/'.
+ Echolot::Globals::get()->{'hostname'}.".".time.'.'.$PROCESS_ID.'_'.Echolot::Globals::get()->{'internalcounter'}++.'.keyring';
+
+ my $GnuPG = new GnuPG::Interface;
+ $GnuPG->call( Echolot::Config::get()->{'gnupg'} ) if (Echolot::Config::get()->{'gnupg'});
+ $GnuPG->options->hash_init(
+ homedir => Echolot::Config::get()->{'gnupghome'} );
+ $GnuPG->options->meta_interactive( 0 );
+
+ my ( $stdin_fh, $stdout_fh, $stderr_fh, $status_fh, $handles ) = Echolot::Tools::make_gpg_fds();
+ my $pid = $GnuPG->wrap_call(
+ commands => [ '--import' ],
+ command_args => [qw{--no-options --no-secmem-warning --no-default-keyring --fast-list-mode --keyring}, $keyring, '--', '-' ],
+ handles => $handles );
+ my ($stdout, $stderr, $status) = Echolot::Tools::readwrite_gpg($keys->{$recipient}->{'key'}, $stdin_fh, $stdout_fh, $stderr_fh, $status_fh);
+ waitpid $pid, 0;
+
+ ($stdout eq '') or
+ Echolot::Log::info("GnuPG returned something in stdout '$stdout' while adding key for '$recipient': So what?");
+ #($stderr eq '') or
+ #Echolot::Log::warn("GnuPG returned something in stderr: '$stderr' while adding key for '$recipient'; returning."),
+ #return undef;
+ ($status =~ /^^\[GNUPG:\] IMPORTED $recipient /m) or
+ Echolot::Log::info("GnuPG status '$status' didn't indicate key for '$recipient' was imported correctly."),
+ return undef;
+
+
+
+
+
+
+ #$msg =~ s/\r?\n/\r\n/g;
+
+
+
+
+ $GnuPG->options->hash_init(
+ armor => 1 );
+
+ ( $stdin_fh, $stdout_fh, $stderr_fh, $status_fh, $handles ) = Echolot::Tools::make_gpg_fds();
+ my $command_args = [qw{--no-options --no-secmem-warning --always-trust --no-default-keyring --textmode --cipher-algo 3DES --keyring}, $keyring, '--recipient', $recipient];
+ my $plaintextfile;
+
+ #if ($pgp2compat) {
+ # push @$command_args, qw{--pgp2};
+ #};
+ # Files are required for compaitibility with PGP 2.*
+ # we also use files in all other cases since there is a bug in either GnuPG or GnuPG::Interface
+ # that let Echolot die if in certain cases:
+ # If a key is unuseable because it expired and we want to encrypt something to it
+ # pingd dies if there is only enough time between calling encrypt() and printing the message
+ # to GnuPG. (a sleep 1 triggered that reproduceably)
+ $plaintextfile = Echolot::Config::get()->{'tmpdir'}.'/'.
+ Echolot::Globals::get()->{'hostname'}.".".time.'.'.$PROCESS_ID.'_'.Echolot::Globals::get()->{'internalcounter'}++.'.plaintext';
+ open (F, '>'.$plaintextfile) or
+ Echolot::Log::warn("Cannot open $plaintextfile for writing: $!."),
+ return 0;
+ print (F $msg);
+ close (F) or
+ Echolot::Log::warn("Cannot close $plaintextfile."),
+ return 0;
+ push @$command_args, $plaintextfile;
+
+ $pid = $GnuPG->encrypt(
+ command_args => $command_args,
+ handles => $handles );
+ ($stdout, $stderr, $status) = Echolot::Tools::readwrite_gpg('', $stdin_fh, $stdout_fh, $stderr_fh, $status_fh);
+ waitpid $pid, 0;
+
+ #($stderr eq '') or
+ #Echolot::Log::warn("GnuPG returned something in stderr: '$stderr' while encrypting to '$recipient'."),
+ #return undef;
+ ($status =~ /^\[GNUPG:\] KEYEXPIRED (\d+)/m) and
+ Echolot::Log::info("Key $recipient expired at ".scalar gmtime($1)." UTC"),
+ return undef;
+ (($status =~ /^\[GNUPG:\] BEGIN_ENCRYPTION\s/m) &&
+ ($status =~ /^\[GNUPG:\] END_ENCRYPTION\s/m)) or
+ Echolot::Log::info("GnuPG status '$status' didn't indicate message to '$recipient' was encrypted correctly (stderr: $stderr; args: ".join(' ', @$command_args).")."),
+ return undef;
+
+ unlink ($keyring) or
+ Echolot::Log::warn("Cannot unlink tmp keyring '$keyring'."),
+ return undef;
+ unlink ($keyring.'~'); # gnupg does those evil backups
+
+ (defined $plaintextfile) and
+ (unlink ($plaintextfile) or
+ Echolot::Log::warn("Cannot unlink tmp plaintextfile '$plaintextfile'."),
+ return undef);
+
+
+ my $result;
+
+ $plaintextfile .= '.asc';
+ open (F, '<'.$plaintextfile) or
+ Echolot::Log::warn("Cannot open $plaintextfile for reading: $!."),
+ return 0;
+ $result = join '', <F>;
+ close (F) or
+ Echolot::Log::warn("Cannot close $plaintextfile."),
+ return 0;
+
+ (defined $plaintextfile) and
+ (unlink ($plaintextfile) or
+ Echolot::Log::warn("Cannot unlink tmp plaintextfile '$plaintextfile'."),
+ return undef);
+
+ $result =~ s,^Version: .*$,Version: N/A,m;
+ #$result =~ s/\r?\n/\r\n/g;
+ return $result;
+};
+
+sub ping($$$$$) {
+ my ($body, $to, $with_from, $chain, $keys) = @_;
+
+ my $msg = $body;
+
+ for my $hop (reverse @$chain) {
+ my $header = '';
+ if ($with_from) {
+ my $address = Echolot::Config::get()->{'my_localpart'} . '@' .
+ Echolot::Config::get()->{'my_domain'};
+ $header = "##\nFrom: Echolot Pinger <$address>\n\n";
+ $with_from = 0;
+ };
+ # "Latent-Time: +0\n".
+ $msg = "::\n".
+ "Anon-To: $to\n".
+ "\n".
+ $header.
+ $msg;
+
+ if ($hop->{'encrypt'}) {
+ my $encrypted = encrypt_to($msg, $hop->{'keyid'}, $keys, $hop->{'pgp2compat'});
+ (defined $encrypted) or
+ Echolot::Log::debug("Encrypted is undefined."),
+ return undef;
+ $msg = "::\n".
+ "Encrypted: PGP\n".
+ "\n".
+ $encrypted;
+ };
+ $to = $hop->{'address'};
+ }
+
+ Echolot::Tools::send_message(
+ To => $to,
+ Body => $msg
+ );
+
+ return 1;
+};
+
+1;
+# vim: set ts=4 shiftwidth=4:
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: