contrib/sd

   1 #!/bin/bash
   2 #
   3 # Copyright (c) 2005, 2006, 2007, 2008 Peter Palfrader <peter@palfrader.org>
   4 # Copyright (c) 2008, 2009 Jacob Appelbaum <jacob@appelbaum.net>
   5 #
   6 # Permission is hereby granted, free of charge, to any person obtaining
   7 # a copy of this software and associated documentation files (the
   8 # "Software"), to deal in the Software without restriction, including
   9 # without limitation the rights to use, copy, modify, merge, publish,
  10 # distribute, sublicense, and/or sell copies of the Software, and to
  11 # permit persons to whom the Software is furnished to do so, subject to
  12 # the following conditions:
  13 #
  14 # The above copyright notice and this permission notice shall be
  15 # included in all copies or substantial portions of the Software.
  16 #
  17 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  21 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24 #
  25 # This small script fetches information about a server when given a nickname.
  26 # It currently uses the v2 dir information and not the v3 consensus by default.
  27 # It requires wget, perl, awk to function properly. This is based on a zsh
  28 # dotfile from weasel and adapted to be a small bash utility.
  29 #
  30
  31 # Feel free to set any authority you desire, we're using weasel's by default
  32 # You could also try the v3 directory infomation in weasel's dir authority:
  33 # http://tor.noreply.org/tor/status-vote/current/consensus
  34 #
  35
  36 # Users can select between the two
  37 v3authority="http://tor.noreply.org/tor/status-vote/current/consensus";
  38 v2authority="http://tor.noreply.org:80/tor/status/authority";
  39 authority=$v2authority;
  40
  41 function usage {
  42     echo "Usage: $0 [-2|-3] nodenickname";
  43 }
  44
  45 if [ -z "$1" ];
  46 then
  47     usage;
  48     exit;
  49 fi
  50
  51 # Are we switching between v2 or v3?
  52 if [ "$1" == "-2" -o "$1" == "-3" ];
  53 then
  54     if [ "$1" == "-2" -a -n "$2" ];
  55     then
  56         authority=$v2authority;
  57         nickname="$2";
  58     elif [ "$1" == "-3" -a -n "$2" ];
  59     then
  60         authority=$v3authority;
  61         nickname="$2";
  62     else
  63         usage;
  64         exit;
  65     fi
  66 else
  67     nickname="$1";
  68 fi
  69
  70 # Fetch it and decode the fingerprint
  71 fp=`wget -q -O - $authority | \
  72         awk '$1 == "r" && $2 == "'$nickname'" {printf "%s===", $3}' | \
  73         perl -MMIME::Base64 -e "print unpack(\"H*\", decode_base64(<>)),\"\n\"";`
  74
  75 # If we don't have a fingerprint, we don't have a match
  76 if [ "$fp" != "" ];
  77 then
  78         wget -q -O - http://tor.noreply.org:80/tor/server/fp/$fp;
  79         exit $?;
  80 else
  81         echo "It appears the nickname is not currently known by the directory" \
  82          "authority."
  83         exit 1;
  84 fi