biod/study/init/fingerprint_study.conf

# Copyright 2018 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

description   "Start the fingerprint study webserver"
author        "chromium-os-dev@chromium.org"

start on started system-services
stop on stopping system-services
respawn
respawn limit 3 10  # if the job respawns 3 times in 10 seconds, stop trying.
oom score 0

env INSTALL_ROOT=/opt/google/fingerprint_study
env LOG_DIR=/var/log/fpstudy
env PICTURE_DIR=/var/lib/fingers
# GNUPGHOME should be set/exported for the gpg tool used within the
# study_serve.py.
env GNUPGHOME=/var/lib/fpstudygnupg
env KEYRING_FILE=chromeos-fpstudy-public-device.gpg
env RECIPIENTS_FILE=chromeos-fpstudy-recipients.txt

script
  # Setup logging of all output in this script to append to server.out.
  exec >>"${LOG_DIR}/server.out" 2>&1

  if ! fp_board="$(cros_config /fingerprint board)"; then
    echo "Error - Failed to get fingerprint board name."
    exit 1
  fi
  echo "Using parameters for fingerprint board '${fp_board}'."

  parameters_file="${INSTALL_ROOT}/parameters/${fp_board}.sh"
  if [ ! -f "${parameters_file}" ]; then
    echo "Error - Parameters file '${parameters_file}' doesn't exist."
    stop
    exit 1
  fi

  # Source the parameters file, which sets the following variables:
  # - FINGER_COUNT
  # - ENROLLMENT_COUNT
  # - VERIFICATION_COUNT
  . "${parameters_file}"
  echo "FINGER_COUNT:       ${FINGER_COUNT}"
  echo "ENROLLMENT_COUNT:   ${ENROLLMENT_COUNT}"
  echo "VERIFICATION_COUNT: ${VERIFICATION_COUNT}"

  # Enable encryption if encryption files exist.
  keyring_file="${INSTALL_ROOT}/${KEYRING_FILE}"
  recipients_file="${INSTALL_ROOT}/${RECIPIENTS_FILE}"
  if [ -f "${keyring_file}" -o -f "${recipients_file}" ]; then
    echo "Enabling encryption."
    if ! [ -f "${keyring_file}" -a -f "${recipients_file}" ]; then
      echo "Missing one of the required encryption files."
      stop
      exit 1
    fi

    if ! recipients=$(cat "${recipients_file}"); then
      echo "Failed to read recipients file."
      stop
      exit 1
    fi

    export GPG_KEYRING="${keyring_file}"
    export GPG_RECIPIENTS="${recipients}"
  fi

  export FINGER_COUNT ENROLLMENT_COUNT VERIFICATION_COUNT
  export LOG_DIR PICTURE_DIR
  exec "${INSTALL_ROOT}/study_serve" --syslog
end script