Feat: adds select-candidate (Closes #20)

#!/usr/bin/env bash

#

# Test Onion Service keys.

#

# Copyright (C) 2022 Silvio Rhatto <rhatto@torproject.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 3 of the License,

# or 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, see <http://www.gnu.org/licenses/>.

#

# Parameters

BASENAME="`basename $0`"

DIRNAME="`dirname $0`"

source $DIRNAME/params

# Additional parameters

CANDIDATE="$2"

function usage() {

  echo "usage: onionmine $BASENAME <pool> <candidate>"

  echo ""

  echo "Select a keypair among candidates from a mining pool"

  echo ""

  echo "    pool:      the mining pool to operate on"

  echo "    candidate: which candidate in the pool to test"

}

function selected() {

  if [ -e "$POOL/selected" ]; then

    echo "Current selected candidate for the $CONFIG pool:"

    echo ""

    basename `readlink $POOL/selected` | sed -e 's/^/    /'

    echo ""

  fi

}

# Check for a config

if [ -z "$CONFIG" ]; then

  usage

  echo ""

  echo "Available pools:"

  echo ""

  ls -1 $POOLS | sed -e 's/^/    /'

  echo ""

  exit 1

fi

# Check for a candidate

if [ -z "$CANDIDATE" ]; then

  usage

  echo ""

  echo "Available candidates in pool $CONFIG: "

  echo ""

  ls -1 $CANDIDATES | sed -e 's/^/    /'

  echo ""

  selected

  exit 1

fi

# Check if pool exists

if [ ! -e "$POOL" ]; then

  echo "$BASENAME: pool not found: $POOL"

  exit 1

fi

# Check if candidate exists

if [ ! -e "$CANDIDATES/$CANDIDATE" ]; then

  echo "$BASENAME: candidate not found: $CANDIDATES/$CANDIDATE"

  exit 1

fi

# Select

cd $POOL

rm -f selected && ln -s $CANDIDATES/$CANDIDATE selected || exit 1

selected

  exit 1

fi

# Check if pool exists

if [ ! -e "$POOL" ]; then

  echo "$BASENAME: pool not found: $POOL"

  exit 1

fi

# Check if candidate exists

if [ ! -e "$CANDIDATES/$CANDIDATE" ]; then

  echo "$BASENAME: candidate not found: $CANDIDATES/$CANDIDATE"

  exit 1

fi

# Check for Tor

if ! which tor &> /dev/null; then

  echo "$BASENAME: cannot find the 'tor' executable; is it installed?"