#!/bin/sh

# shellcheck source=conf/default.conf
. "${0%/*}/../conf/default.conf"

if [ "x${SSH_ORIGINAL_COMMAND%% *}" = 'xget-assignment' ] || \
  [ "x${SSH_ORIGINAL_COMMAND%% *}" = 'xreturn-assignment' ] || \
  [ "x${SSH_ORIGINAL_COMMAND%% *}" = 'xping-from-slave' ]; then

  # small check to prevent some shell-injections
  if printf '%s\n' "${SSH_ORIGINAL_COMMAND}" | \
    grep -q '[^-a-zA-Z0-9.+_ ]'; then

    >&2 printf 'Invalid command: "%s".\n' "${SSH_ORIGINAL_COMMAND}"
    exit 42

  fi

  printf '%s %s %s\n' "$(date '+%F %T')" "$1" "${SSH_ORIGINAL_COMMAND}" >> \
    "${work_dir}/ssh-log"

  # shellcheck disable=SC2016
  {
    printf 'UPDATE `build_slaves`'
    printf ' SET `build_slaves`.`last_connection`=NOW()'
    printf ' WHERE `build_slaves`.`name`=from_base64("%s")\n' \
      "$(
        printf '%s' "$1" | \
          base64 -w0
      )"
  } | \
    mysql_run_query

  slave="$1" /bin/sh -c "${base_dir}/bin/${SSH_ORIGINAL_COMMAND}"

else

  >&2 printf 'Invalid command: "%s".\n' "${SSH_ORIGINAL_COMMAND}"
  exit 42

fi