Shadowsocks-libev with simple-obfs script

lsmg

#!/usr/bin/env bash

function check_env() { 
  libev_ver=$(ss-local -h | grep "shadowsocks-libev")
  [ -z "$libev_ver" ] && echo "[Error] Cannot find shadowsocks-libev" && exit 1
  obfs_ver=$(obfs-local -h | grep "simple-obfs")
}

function get_pid() {
  pid=$(ps -x | grep "/tmp/ss-local.pid" | grep "ss-local -c" | grep -oP '^\s*\d+' | grep -oP '\d+')
  echo "$pid"
}

function start() {
  if [ -f $1 ]; then
    cfg=$(realpath $1)
    if [ -n "$(get_pid)" ]; then
      echo "[Error] already running"
    fi

    cmdline="ss-local -c $cfg -f /tmp/ss-local.pid"
    [ -n "$obfs_ver" ] && $cmdline="$cmdline --plugin obfs-local --plugin-opts 'obfs=http; obfs-host=www.baidu.com'"
    $cmdline && echo "[OK] started <-- $cfg"
    [ $? != 0 ] && echo "[Error] Something unexpected occurred" && exit 127
  else
    echo "[Error] '$1' is not present" && exit 2
  fi
}

function stop() {
  pid=$(get_pid)
  if [ -n "$pid" ]; then
    kill $pid && echo "[Info] $pid stopped"
    [ $? != 0 ] && echo "[Error] it refused to die"
    rm -f /tmp/ss-local.pid && echo "[Info] pid file clear"
  else
    echo "[Error] not running"
  fi
}

function usage() {
  echo "Usage: $(basename $0) <path_to_config_json|args>"
  echo " args:"
  echo "	-h or --help	prints usage;"
  echo "	-s or stop	ends the shadowsocks-libev process;"
  echo "	-v		prints service status;"
  echo "	-V or --version	prints version info;"
}

function status() {
  pid=$(get_pid)
  if [ -n "$pid" ]; then
    echo "Running PID = $pid"
    echo $(ps -x | grep -oP "^\\s*$pid.*?$" | grep -oP 'ss-local.*?$')
  fi
}

function version() {
  echo "shadowsocks-libev	: $libev_ver"
  echo "simple-obfs		: $obfs_ver"
}

check_env

if [ $# != 1 ]; then
  usage
  exit 1
fi

case $1 in
  -h | --help)
    usage;;
  -s | stop)
    stop;;
  -v)
    status;;
  -V | --version)
    version;;
  *)
    start $1;;
esac

exit 0