Tox DNS Discovery scripts

dns2sign.sh

#!/usr/bin/env sh

#Compile other/fun/sign.c from ProjectTox-Core and put it here named sign
#generate a keypair with ./sign g
#sh dns2key.sh v=tox1;etc {signing key}

  DNS=$1
  TOXVER=`echo -n $DNS | tr ';:"\\\/' '\n' | grep tox | tr '=' ' ' | awk '{print $NF}'`
  case $TOXVER in
    tox1)
      ID=`echo -n $DNS | tr ';:"\\\/' '\n' | grep id | tr '=' ' ' | awk '{print $NF}'`
      echo $ID > .tox
      ./sign s $2 .tox .toxsign
      SIGN=`cat .toxsign | tail -n 1 | base64 -w0 | tr -d '='`
      rm .tox .toxsign
      LOOKUP="v=tox1;id=$ID;sign=$SIGN"
      ;;
    tox2)
      PUB=`echo -n $DNS | tr ';:"\\\/' '\n' | grep pub | tr '=' ' ' | awk '{print $NF}'`
      CHECK=`echo -n $DNS | tr ';:"\\\/' '\n' | grep check | tr '=' ' ' | awk '{print $NF}'`
      ID=$PUB$CHECK
      echo $ID > .tox
      ./sign s $2 .tox .toxsign
      SIGN=`cat .toxsign | tail -n 1 | base64 -w0 | tr -d '='`
      rm .tox .toxsign
      LOOKUP="v=tox2;pub=$PUB;check=$CHECK;sign=$SIGN"
      ;;
    *)
      echo "Invalid DNS record"
      exit 1
      ;;
  esac
echo $LOOKUP

dns2tox.sh

#!/usr/bin/env sh

#For tox1 entries it expects just the email like ID
#sh dns2tox.sh steve@toxusers.com
#for tox2 entries it expects the email like ID and pin
#sh dns2tox.sh steve@toxusers.com 2ky9f+

case $1 in
  *@*)
    ID=`echo $1 | tr ':/' ' ' | sed 's/@/._tox./' | awk '{print $NF}'`
    DNS=`dig TXT $ID +short`
    TOXVER=`echo -n $DNS | tr ';:"\\\/' '\n' | grep tox | tr '=' ' ' | awk '{print $NF}'`
    case $TOXVER in
      tox1)
        LOOKUP=`echo -n $DNS | tr ';:"\\\/' '\n' | grep id | tr '=' ' ' | awk '{print $NF}'`
        ;;
      tox2)
        PUB=`echo -n $DNS | tr ';:"\\\/' '\n' | grep pub | tr '=' ' ' | awk '{print $NF}'`
        CHECK=`echo -n $DNS | tr ';:"\\\/' '\n' | grep check | tr '=' ' ' | awk '{print $NF}'`
        NOSPAM=`echo -n "$2==" | base64 -d | xxd -p | tr '[:lower:]' '[:upper:]'`
        LOOKUP=$PUB$NOSPAM$CHECK
        ;;
      *)
        echo "Invalid DNS record"
        exit 1
        ;;
    esac
    ;;
  *)
    ID=`echo $1 | tr ':/' ' ' | awk '{print $NF}'`
    LOOKUP=$ID
    ;;
esac
echo $LOOKUP

tox2dns.sh

#!/usr/bin/env sh

#turns a Tox ID in to a dns record and pin
#sh tox2dns.sh DF157E229E5A6446E58F30F7281D69E0A9F952DA644D5A86DC7D16DE35B5395FADBFE61A87AA

if [ ${#1} != 76 ];
then
  echo "Invalid ID! Tox IDs are 76 characters, not ${#1}"
  exit 1
else
  TEMP=`echo $1 | fold -w64`
  PUB=`echo $TEMP | cut -d ' ' -f 1`
  NOSUM=`echo $TEMP | cut -d ' ' -f 2 | fold -w8`
  PIN=`echo $NOSUM | cut -d ' ' -f 1 | xxd -p -r | base64 | tr -d '='`
  CHECKSUM=`echo $NOSUM | cut -d ' ' -f 2`
  echo "Your DNS discovery record is 'v=tox2;pub=$PUB;check=$CHECKSUM'"
  echo "Your PIN is $PIN"
fi

vanitypin.sh

#!/usr/bin/env sh

#sh vanitypin.sh 000000 path/to/tox/data

if [ ${#1} != 6 ];
then
  echo "A pin is 6 characters"
  exit 1
else
  CALC=`echo -n "$1==" | base64 -d | dd of=$2 bs=1 seek=16 count=8 conv=notrunc`
  echo Patched your data file!
fi

python-fork for tox2dns and dns2tox.. singing not included yet..
https://gist.github.com/skamster/9963661