macOS Big SurでSelf Serviceアプリケーションがクラッシュしてしまう問題の暫定対応の自動化

#!/bin/zsh

export PATH=/usr/bin:/bin:/usr/sbin:/sbin

LAUNCH_AGENT_ID="YOUR_AGENT_ID"
DEPLOY_FOR_ALL_USERS=false # You can set 'true' if you want to deploy agent for every users
IS_REMOVE=false
APPLICATION_NAME="Self Service" # If you have changed your Self Service application name, please change this value
THROTTLE_INTERVAL="10" # 10 or more is recommended

# Functions

run_as_user() {
  local uid
  if [[ "$(whoami)" == "${CURRENT_USER}" ]];then
    "$@"
  else
    uid=$(id -u "${CURRENT_USER}")
    launchctl asuser "${uid}" sudo -u "${CURRENT_USER}" "$@"
  fi
}

print_info_log(){
  local timestamp
  timestamp=$(date +%F\ %T)

  echo "$timestamp [INFO] $1"
}

print_error_log(){
  local timestamp
  timestamp=$(date +%F\ %T)

  echo "$timestamp [ERROR] $1"
}

# Main

if [[ "${1}" = "/" ]];then
  # Jamf uses sends '/' as the first argument
  print_info_log "Shifting arguments for Jamf."
  shift 3
fi

if "${1}";then
  print_info_log "Override 'DEPLOY_FOR_ALL_USERS' as ${1}..."
  DEPLOY_FOR_ALL_USERS="${1}"
fi

if [[ "${2}" ]];then
  IS_REMOVE=true
fi

if "${DEPLOY_FOR_ALL_USERS}" && [[ "$(whoami)" != "root" ]];then
  print_error_log "This script needs to be run with root privileges when 'DEPLOY_FOR_ALL_USERS' is enabled."
  exit 1
fi

CURRENT_USER=$(stat -f%Su /dev/console)
LAUNCH_AGENT_PLIST_PATH="/Library/LaunchAgents/${LAUNCH_AGENT_ID}.plist"

if ! "${DEPLOY_FOR_ALL_USERS}";then
  if [[ ! "${CURRENT_USER}" ]];then
    print_error_log "No one is logged in. Either run it after the user logs in, or set 'DEPLOY_FOR_ALL_USERS' variable of this script to true and distribute it to all users."
    exit 1
  fi

  CURRENT_USER_HOME_DIRECTORY=$(dscl /Local/Default read "/Users/${CURRENT_USER}" NFSHomeDirectory | awk '{print $2}')
  # Override LAUNCH_AGENT_PLIST_PATH
  LAUNCH_AGENT_PLIST_PATH="${CURRENT_USER_HOME_DIRECTORY}${LAUNCH_AGENT_PLIST_PATH}"
fi

if "${IS_REMOVE}";then
  print_info_log "Removing ${LAUNCH_AGENT_ID} agent..."
  if [[ ! "${CURRENT_USER}" ]];then
    run_as_user launchctl remove "${LAUNCH_AGENT_ID}"
  fi
  rm -rf "${LAUNCH_AGENT_PLIST_PATH}"
  print_info_log "Removed ${LAUNCH_AGENT_ID} agent."

  exit 0
fi

print_info_log "Deploying ${LAUNCH_AGENT_PLIST_PATH} file..."

cat > "${LAUNCH_AGENT_PLIST_PATH}" <<XML
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>Label</key>
  <string>${LAUNCH_AGENT_ID}</string>
  <key>ProgramArguments</key>
  <array>
    <string>/bin/sh</string>
    <string>-c</string>
    <string>ps axc | grep "${APPLICATION_NAME}" || rm -rf "\${HOME}/Library/Application Support/com.jamfsoftware.selfservice.mac/CocoaAppCD.storedata" &amp;&amp; sleep "${THROTTLE_INTERVAL}"</string>
  </array>
  <key>ThrottleInterval</key>
  <integer>${THROTTLE_INTERVAL}</integer>
  <key>WatchPaths</key>
  <array>
    <string>~/Library/Application Support/com.jamfsoftware.selfservice.mac/CocoaAppCD.storedata</string>
  </array>
  <key>KeepAlive</key>
  <true/>
</dict>
</plist>
XML

print_info_log "Deployed ${LAUNCH_AGENT_ID} agent."

if ! "${DEPLOY_FOR_ALL_USERS}";then
  CURRENT_USER_GROUP=$(stat -f "%Sg" "${CURRENT_USER_HOME_DIRECTORY}")
  chown "${CURRENT_USER}:${CURRENT_USER_GROUP}" "${LAUNCH_AGENT_PLIST_PATH}"
fi

if [[ "${CURRENT_USER}" ]];then
  run_as_user launchctl unload "${LAUNCH_AGENT_PLIST_PATH}" &>/dev/null
  run_as_user launchctl load "${LAUNCH_AGENT_PLIST_PATH}"
  print_info_log "Launched ${LAUNCH_AGENT_ID} agent by ${CURRENT_USER}."
fi

exit 0

LAUNCH_AGENT_PLIST_PATH="/Library/LaunchAgents/${LAUNCH_AGENT_ID}.plist"

if ! "${DEPLOY_FOR_ALL_USERS}";then
  if [[ ! "${CURRENT_USER}" ]];then
    print_error_log "No one is logged in. Either run it after the user logs in, or set 'DEPLOY_FOR_ALL_USERS' variable of this script to true and distribute it to all users."
    exit 1
  fi

  CURRENT_USER_HOME_DIRECTORY=$(dscl /Local/Default read "/Users/${CURRENT_USER}" NFSHomeDirectory | awk '{print $2}')
  LAUNCH_AGENT_PLIST_PATH="${CURRENT_USER_HOME_DIRECTORY}${LAUNCH_AGENT_PLIST_PATH}"
fi

/bin/sh -c ps axc | grep "設定したアプリケーション名" || rm -rf "${HOME}/Library/Application Support/com.jamfsoftware.selfservice.mac/CocoaAppCD.storedata" && sleep "設定したThrottle Interval"

if [[ "${CURRENT_USER}" ]];then
  run_as_user launchctl unload "${LAUNCH_AGENT_PLIST_PATH}" &>/dev/null
  run_as_user launchctl load "${LAUNCH_AGENT_PLIST_PATH}"
  print_info_log "Launched ${LAUNCH_AGENT_ID} agent by ${CURRENT_USER}."
fi