#!/usr/bin/python
# coding: utf-8

import subprocess
import time
import os
import sys
import MySQLdb
from smtplib import SMTP, SMTPAuthenticationError, SMTPConnectError, SMTPSenderRefused
import ConfigParser
import socket
import fcntl
import struct
import readline
import random
import string

jms_dir = os.path.dirname(os.path.abspath(os.path.dirname(__file__)))
sys.path.append(jms_dir)


def bash(cmd):
    """
    run a bash shell command
    执行bash命令
    """
    return subprocess.call(cmd, shell=True)


def color_print(msg, color='red', exits=False):
    """
    Print colorful string.
    颜色打印字符或者退出
    """
    color_msg = {'blue': '\033[1;36m%s\033[0m',
                 'green': '\033[1;32m%s\033[0m',
                 'yellow': '\033[1;33m%s\033[0m',
                 'red': '\033[1;31m%s\033[0m',
                 'title': '\033[30;42m%s\033[0m',
                 'info': '\033[32m%s\033[0m'}
    msg = color_msg.get(color, 'red') % msg
    print msg
    if exits:
        time.sleep(2)
        sys.exit()
    return msg


def get_ip_addr(ifname='eth0'):
    try:
        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        return socket.inet_ntoa(fcntl.ioctl(
            s.fileno(),
            0x8915,
            struct.pack('256s', ifname[:15])
        )[20:24])
    except:
        ips = os.popen("LANG=C ifconfig | grep \"inet addr\" | grep -v \"127.0.0.1\" | awk -F \":\" '{print $2}' | awk '{print $1}'").readlines()
        if len(ips) > 0:
            return ips[0]
    return ''


class PreSetup(object):
    def __init__(self):
        self.db_host = '127.0.0.1'
        self.db_port = 3306
        self.db_user = 'jumpserver'
        self.db_pass = '5Lov@wife'
        self.db = 'jumpserver'
        self.mail_host = 'smtp.qq.com'
        self.mail_port = 25
        self.mail_addr = 'hello@jumpserver.org'
        self.mail_pass = ''
        self.ip = ''
        self.key = ''.join(random.choice(string.ascii_lowercase + string.digits) \
                           for _ in range(16))

    def write_conf(self, conf_file=os.path.join(jms_dir, 'jumpserver.conf')):
        color_print('开始写入配置文件', 'green')
        conf = ConfigParser.ConfigParser()
        conf.read(conf_file)
        conf.set('base', 'url', 'http://%s' % self.ip)
        conf.set('base', 'key', self.key)
        conf.set('db', 'host', self.db_host)
        conf.set('db', 'port', self.db_port)
        conf.set('db', 'user', self.db_user)
        conf.set('db', 'password', self.db_pass)
        conf.set('db', 'database', self.db)
        conf.set('websocket', 'web_socket_host', '%s:3000' % self.ip)
        conf.set('mail', 'email_host', self.mail_host)
        conf.set('mail', 'email_port', self.mail_port)
        conf.set('mail', 'email_host_user', self.mail_addr)
        conf.set('mail', 'email_host_password', self.mail_pass)

        with open(conf_file, 'w') as f:
            conf.write(f)

    def _setup_mysql(self):
        color_print('开始安装设置mysql (请手动设置mysql安全)', 'green')
        color_print('默认用户名: %s 默认密码: %s' % (self.db_user, self.db_pass), 'green')
        bash('yum -y install mysql-server')
        bash('service mysqld start')
        bash('chkconfig mysqld on')
        bash('mysql -e "create database %s default charset=utf8"' % self.db)
        bash('mysql -e "grant all on %s.* to \'%s\'@\'%s\' identified by \'%s\'"' % (self.db,
                                                                                     self.db_user,
                                                                                     self.db_host,
                                                                                     self.db_pass))

    @staticmethod
    def _set_env():
        color_print('开始关闭防火墙和selinux', 'green')
        os.system("export LANG='en_US.UTF-8' && sed -i 's/LANG=.*/LANG=en_US.UTF-8/g' /etc/sysconfig/i18n")
        bash('service iptables stop && chkconfig iptables off && setenforce 0')

    def _test_db_conn(self):
        try:
            MySQLdb.connect(host=self.db_host, port=int(self.db_port),
                            user=self.db_user, passwd=self.db_pass, db=self.db)
            color_print('连接数据库成功', 'green')
            return True
        except MySQLdb.OperationalError, e:
            color_print('数据库连接失败 %s' % e, 'red')
            return False

    def _test_mail(self):
        try:
            smtp = SMTP(self.mail_host, port=self.mail_port, timeout=2)
            smtp.login(self.mail_addr, self.mail_pass)
            smtp.sendmail(self.mail_addr, (self.mail_addr, ),
                          '''From:%s\r\nTo:%s\r\nSubject:Jumpserver Mail Test!\r\n\r\n  Mail test passed!\r\n''' %
                          (self.mail_addr, self.mail_addr))
            smtp.quit()
            return True

        except Exception, e:
            color_print(e, 'red')
            skip = raw_input('是否跳过(y/n) [n]? : ')
            if skip == 'y':
                return True
            return False

    @staticmethod
    def _rpm_repo():
        color_print('开始安装epel源', 'green')
        bash('yum -y install epel-release')

    @staticmethod
    def _depend_rpm():
        color_print('开始安装依赖rpm包', 'green')
        bash('yum -y install git python-pip mysql-devel gcc automake autoconf python-devel vim sshpass')

    @staticmethod
    def _require_pip():
        color_print('开始安装依赖pip包', 'green')
        bash('pip install -r requirements.txt')

    def _input_ip(self):
        ip = raw_input('\n请输入您服务器的IP地址，用户浏览器可以访问 [%s]: ' % get_ip_addr()).strip()
        self.ip = ip if ip else get_ip_addr()

    def _input_mysql(self):
        while True:
            mysql = raw_input('是否安装新的MySQL服务器? (y/n) [y]: ')
            if mysql != 'n':
                self._setup_mysql()
            else:
                db_host = raw_input('请输入数据库服务器IP [127.0.0.1]: ').strip()
                db_port = raw_input('请输入数据库服务器端口 [3306]: ').strip()
                db_user = raw_input('请输入数据库服务器用户 [root]: ').strip()
                db_pass = raw_input('请输入数据库服务器密码: ').strip()
                db = raw_input('请输入使用的数据库 [jumpserver]: ').strip()

                if db_host: self.db_host = db_host
                if db_port: self.db_port = db_port
                if db_user: self.db_user = db_user
                if db_pass: self.db_pass = db_pass
                if db: self.db = db

            if self._test_db_conn():
                break

            print

    def _input_smtp(self):
        while True:
            self.mail_host = raw_input('请输入SMTP地址: ').strip()
            mail_port = raw_input('请输入SMTP端口 [25]: ').strip()
            self.mail_addr = raw_input('请输入账户: ').strip()
            self.mail_pass = raw_input('请输入密码: ').strip()

            if mail_port: self.mail_port = int(mail_port)

            if self._test_mail():
                color_print('\n\t请登陆邮箱查收邮件, 然后确认是否继续安装\n', 'green')
                smtp = raw_input('是否继续? (y/n) [y]: ')
                if smtp == 'n':
                    continue
                else:
                    break
            print

    def start(self):
        # self._rpm_repo()
        # self._depend_rpm()
        # self._require_pip()
        color_print('请务必先查看wiki https://github.com/ibuler/jumpserver/wiki/Quickinstall')
        time.sleep(3)
        self._set_env()
        self._input_ip()
        self._input_mysql()
        self._input_smtp()
        self.write_conf()
        os.system('python %s' % os.path.join(jms_dir, 'install/next.py'))


if __name__ == '__main__':
    pre_setup = PreSetup()
    pre_setup.start()