#!/bin/sh
# create a dedicated FTP user for vsftpd service
# 2026-05-08 10:25 created by niujiuru

create_ftpuser_if_not_exists() {
  FTP_USER="$1"
  FTP_HOME="$2"
  PASSWORD="$3"

  if ! /usr/bin/id "$FTP_USER" >/dev/null 2>&1; then
    /usr/sbin/useradd -m -d "$FTP_HOME" "$FTP_USER"
    if [ $? -eq 0 ]; then
      echo "$FTP_USER:$PASSWORD" | /usr/sbin/chpasswd
    fi
  fi

  /bin/mkdir -p "$FTP_HOME"

  if /usr/bin/id "$FTP_USER" >/dev/null 2>&1; then
    /bin/chown "$FTP_USER:$FTP_USER" "$FTP_HOME"
  fi
}

create_ftpuser_if_not_exists ftpuser /home/ftpuser ftpuser5678