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#!/bin/bash
#
# Copyright (c) 2005, 2006, 2007, 2008 Peter Palfrader <peter@palfrader.org>
# Copyright (c) 2008, 2009 Jacob Appelbaum <jacob@appelbaum.net>
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# This small script fetches information about a server when given a nickname.
# It currently uses the v2 dir information and not the v3 consensus by default.
# It requires wget, perl, awk to function properly. This is based on a zsh
# dotfile from weasel and adapted to be a small bash utility.
#
# Feel free to set any authority you desire, we're using weasel's by default
# You could also try the v3 directory infomation in weasel's dir authority:
# http://tor.noreply.org/tor/status-vote/current/consensus
#
# Users can select between the two
v3authority="http://tor.noreply.org/tor/status-vote/current/consensus";
v2authority="http://tor.noreply.org:80/tor/status/authority";
authority=$v2authority;
function usage {
echo "Usage: $0 [-2|-3] nodenickname";
}
if [ -z "$1" ];
then
usage;
exit;
fi
# Are we switching between v2 or v3?
if [ "$1" == "-2" -o "$1" == "-3" ];
then
if [ "$1" == "-2" -a -n "$2" ];
then
authority=$v2authority;
nickname="$2";
elif [ "$1" == "-3" -a -n "$2" ];
then
authority=$v3authority;
nickname="$2";
else
usage;
exit;
fi
else
nickname="$1";
fi
# Fetch it and decode the fingerprint
fp=`wget -q -O - $authority | \
awk '$1 == "r" && $2 == "'$nickname'" {printf "%s===", $3}' | \
perl -MMIME::Base64 -e "print unpack(\"H*\", decode_base64(<>)),\"\n\"";`
# If we don't have a fingerprint, we don't have a match
if [ "$fp" != "" ];
then
wget -q -O - http://tor.noreply.org:80/tor/server/fp/$fp;
exit $?;
else
echo "It appears the nickname is not currently known by the directory" \
"authority."
exit 1;
fi
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