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package Echolot::Conf;
# (c) 2002 Peter Palfrader <peter@palfrader.org>
# $Id: Conf.pm,v 1.4 2002/06/13 15:27:45 weasel Exp $
#
=pod
=head1 Name
Echolot::Conf - remailer Configuration/Capabilities
=head1 DESCRIPTION
This package provides functions for requesting, parsing, and analyzing
remailer-conf and remailer-key replies.
=cut
use strict;
use warnings;
use Carp qw{cluck};
sub send_requests() {
Echolot::Globals::get()->{'storage'}->delay_commit();
for my $remailer (Echolot::Globals::get()->{'storage'}->get_addresses()) {
next unless ($remailer->{'status'} eq 'active');
print "Sending requests to ".$remailer->{'address'}."\n";
for my $type (qw{conf key help stats}) {
Echolot::Tools::send_message(
'To' => $remailer->{'address'},
'Subject' => 'remailer-'.$type,
'Token' => $type.'.'.$remailer->{'id'})
};
Echolot::Globals::get()->{'storage'}->decrease_ttl($remailer->{'address'});
};
Echolot::Globals::get()->{'storage'}->enable_commit();
};
sub remailer_conf($$$) {
my ($conf, $token, $time) = @_;
my ($id) = $token =~ /^conf\.(\d+)$/;
(defined $id) or
cluck ("Returned token '$token' has no id at all"),
return 0;
cluck("Could not find id in token '$token'"), return 0 unless defined $id;
my ($remailer_type) = ($conf =~ /^\s*Remailer-Type:\s* (.*?) \s*$/imx);
cluck("No remailer type found in remailer_conf from '$token'"), return 0 unless defined $remailer_type;
my ($remailer_caps) = ($conf =~ /^\s*( \$remailer{".*"} \s*=\s* "<.*@.*>.*"; )\s*$/imx);
cluck("No remailer caps found in remailer_conf from '$token'"), return 0 unless defined $remailer_caps;
my ($remailer_nick, $remailer_address) = ($remailer_caps =~ /^\s* \$remailer{"(.*)"} \s*=\s* "<(.*@.*)>.*"; \s*$/ix);
cluck("No remailer nick found in remailer_caps from '$token': '$remailer_caps'"), return 0 unless defined $remailer_nick;
cluck("No remailer address found in remailer_caps from '$token': '$remailer_caps'"), return 0 unless defined $remailer_address;
my $remailer = Echolot::Globals::get()->{'storage'}->get_address_by_id($id);
cluck("No remailer found for id '$id'"), return 0 unless defined $remailer;
if ($remailer->{'address'} ne $remailer_address) {
# Address mismatch -> Ignore reply and add $remailer_address to prospective addresses
cluck("Remailer address mismatch $remailer->{'address'} vs $remailer_address. Adding latter to prospective remailers.");
Echolot::Globals::get()->{'storage'}->add_prospective_address($remailer_address, 'self-capsstring-conf', $remailer_address);
} else {
Echolot::Globals::get()->{'storage'}->restore_ttl( $remailer->{'address'} );
Echolot::Globals::get()->{'storage'}->set_caps($remailer_type, $remailer_caps, $remailer_nick, $remailer_address, $time);
}
# Fetch prospective remailers from reliable's remailer-conf reply:
my @lines = split /\r?\n/, $conf;
while (@lines) {
my $head = $lines[0];
chomp $head;
shift @lines;
last if ($head eq 'SUPPORTED CPUNK (TYPE I) REMAILERS');
};
while (@lines) {
my $head = $lines[0];
chomp $head;
shift @lines;
last unless ($head =~ /<(.*?@.*?)>/);
Echolot::Globals::get()->{'storage'}->add_prospective_address($1, 'reliable-caps-reply-type1', $remailer_address);
};
while (@lines) {
my $head = $lines[0];
chomp $head;
shift @lines;
last if ($head eq 'SUPPORTED MIXMASTER (TYPE II) REMAILERS');
};
while (@lines) {
my $head = $lines[0];
chomp $head;
last unless ($head =~ /\s(.*?@.*?)\s/);
shift @lines;
Echolot::Globals::get()->{'storage'}->add_prospective_address($1, 'reliable-caps-reply-type2', $remailer_address);
};
return 1;
};
sub remailer_key($$$) {
my ($conf, $token, $time) = @_;
my ($id) = $token =~ /^key\.(\d+)$/;
(defined $id) or
cluck ("Returned token '$token' has no id at all"),
return 0;
my $remailer = Echolot::Globals::get()->{'storage'}->get_address_by_id($id);
cluck("No remailer found for id '$id'"), return 0 unless defined $remailer;
# -----Begin Mix Key-----
# 7f6d997678b19ccac110f6e669143126
# 258
# AASyedeKiP1/UKyfrBz2K6gIhv4jfXIaHo8dGmwD
# KqkG3DwytgSySSY3wYm0foT7KvEnkG2aTi/uJva/
# gymE+tsuM8l8iY1FOiXwHWLDdyUBPbrLjRkgm7GD
# Y7ogSjPhVLeMpzkSyO/ryeUfLZskBUBL0LxjLInB
# YBR3o6p/RiT0EQAAAAAAAAAAAAAAAAAAAAAAAAAA
# AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
# AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
# AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
# AAAAAAAAAAAAAAAAAAAAAQAB
# -----End Mix Key-----
my %mixmasters;
# rot26 rot26@mix.uucico.de 7f6d997678b19ccac110f6e669143126 2.9b33 MC
my @mix_confs = ($conf =~ /^[a-z0-9]+ \s+ \S+\@\S+ \s+ [0-9a-f]{32} (?:\s+ \S+ \s+ \S+)?/xmg);
my @mix_keys = ($conf =~ /^-----Begin \s Mix \s Key-----\r?\n
[0-9a-f]{32}\r?\n
\d+\r?\n
(?:[a-zA-Z0-9+\/]*\r?\n)+
-----End \s Mix \s Key-----$/xmg );
for (@mix_confs) {
my ($nick, $address, $keyid, $version, $caps) = /^([a-z0-9]+) \s+ (\S+@\S+) \s+ ([0-9a-f]{32}) (?:(\S+) \s+ (\S+))?/x;
$mixmasters{$keyid} = {
nick => $nick,
address => $address,
version => $version,
caps => $caps,
summary => $_
};
};
for (@mix_keys) {
my ($keyid) = /^-----Begin \s Mix \s Key-----\r?\n
([0-9a-f]{32})\r?\n
\d+\r?\n
(?:[a-zA-Z0-9+\/]*\r?\n)+
-----End \s Mix \s Key-----$/xmg;
$mixmasters{$keyid}->{'key'} = $_;
};
for my $keyid (keys %mixmasters) {
my $remailer_address = $mixmasters{$keyid}->{'address'};
(defined $mixmasters{$keyid}->{'nick'} && ! defined $mixmasters{$keyid}->{'key'}) and
cluck("Mixmaster key header without key in reply from $remailer_address"),
next;
(! defined $mixmasters{$keyid}->{'nick'} && defined $mixmasters{$keyid}->{'key'}) and
cluck("Mixmaster key without key header in reply from $remailer_address"),
next;
if ($remailer->{'address'} ne $remailer_address) {
# Address mismatch -> Ignore reply and add $remailer_address to prospective addresses
cluck("Remailer address mismatch $remailer->{'address'} vs $remailer_address. Adding latter to prospective remailers.");
Echolot::Globals::get()->{'storage'}->add_prospective_address($remailer_address, 'self-capsstring-key', $remailer_address);
} else {
Echolot::Globals::get()->{'storage'}->restore_ttl( $remailer->{'address'} );
Echolot::Globals::get()->{'storage'}->set_key(
'mix',
$mixmasters{$keyid}->{'nick'},
$mixmasters{$keyid}->{'address'},
$mixmasters{$keyid}->{'key'},
$keyid,
$mixmasters{$keyid}->{'version'},
$mixmasters{$keyid}->{'caps'},
$mixmasters{$keyid}->{'summary'},
$time);
}
};
return 1;
};
sub remailer_stats($$$) {
my ($conf, $token, $time) = @_;
#print "Remailer stats\n";
};
sub remailer_help($$$) {
my ($conf, $token, $time) = @_;
#print "Remailer help\n";
};
1;
# vim: set ts=4 shiftwidth=4:
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