#!/usr/bin/env python

import os
import hashlib
import paramiko
import time
import sys

def getmd5(filename):
 filehash = hashlib.md5()
 f = open(filename,'rb')
 while True:
  b=f.read(8096)
  if not b:
   break
  filehash.update(b)
 f.close()
 return filehash.hexdigest()

def send_files(sftp,ssh,filename,abspathfile,server_dir):
 try:
  print ("删除文件",end=" ")
  print (filename)
  
  ssh.exec_command('bash /root/put_api.sh %s move' % filename)
  
  print ("删除文件成功")
  print ("开始上传文件")
  server_file=server_dir + filename

  sftp.put(abspathfile,server_file)
  print ("文件上传成功")

 except:
   print ("文件上传失败")
 
def search_file(dir,path,ssh,server_dir):
 #定义排除以md结尾的字符串
 suffix='md'
 #定义循环

 print ("开启sftp")
 t = paramiko.Transport(('myhostname',22))
 t.connect(username='root',password='mypassword')
 sftp = paramiko.SFTPClient.from_transport(t)
 
 for filename in os.listdir(path):

  print (time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()))
  print ("开始处理 %s" %(filename))
  
  #如果以md结尾，就continue
  if filename.endswith(suffix):
   print ("不处理以md结尾")
   continue
  
  #定义绝对路径
  abspathfile=dir + '\\' + filename

  #获取文件的md5
  localfilemd5=getmd5(abspathfile)+'\n'

  byte_localfilemd5=localfilemd5.encode(encoding="gb2312")
  print ("%s md5值 %s" %(filename,byte_localfilemd5))
  
  serverfilemd5=get_server_md5(ssh,filename)

  print ("%s 服务器md5值 %s" %(filename,serverfilemd5))
  
  if byte_localfilemd5 == serverfilemd5 :
   print ("md5值一致，不需要上传")
  else:
   print ("md5值不一致，上传文件")

#  send_files(sftp,ssh,filename,abspathfile,server_dir)
   try:
#    send_files(ssh,filename,abspathfile,server_dir)
    send_files(sftp,ssh,filename,abspathfile,server_dir)
   except:
    print ("上传失败...")

 print ("关闭sftp")
 t.close()



def get_server_md5(ssh,filename):
 stdin,stdout,stderr = ssh.exec_command('bash /root/put_api.sh %s' % filename)
 result = stdout.read()
 
 return result

def main():
 starttime=time.time()
 
 print ("脚本开始同步")
 print (time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()))
 try:
  ssh = paramiko.SSHClient()
  ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
  ssh.connect(hostname='myhostname',port='22',username='root',password='mypassword')
 except:
  print ("服务器连接失败，异常退出")
  sys.exit(-1)
  
 #定义路径
 local_dir = 'E:\\TEMP\\note_html'
 server_dir= '/root/nginx_02/'

 #利用函数排除文件
 search_file(local_dir,local_dir,ssh,server_dir)

# print (get_server_md5(ssh,'d0180727_install_rabbitmt_png_06.png'))
 
 ssh.close()
 endtime=time.time()
 print (time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()))
 print ("服务器断开连接,本次文件更新成功")
 print ("本次更新时间为:%.2f s" %(endtime - starttime))
 print ("更精确的时间:",end=" ")
 usedtime = endtime - starttime
 print (usedtime,end=" ")
 print ("s")
 
 
if __name__ == "__main__" :
 main()

#!/bin/bash 

#判断参数的个数是否大于等于1
if [ $# -ge 1 ];then
 
 #定义文件夹
 root_dir="/root/nginx_02/"
 backdir="/root/.backup/"
 abs_filename=$root_dir$1

 #判断是否有这个文件
 if [ -f $abs_filename ];then

  #利用md5sum工具获取文件的md5值
  getfilemd5=`md5sum $abs_filename | awk '{print $1}'`
  echo "$getfilemd5"

  #判断第二个参数是否是move
  if [ 'move' == $2 ];then
   #判断是否存在备份目录，没有则存在，有则挪至备份目录
   if [ -d $backdir ];then
    nowtime=`date +"%F_%H:%M:%S"`
    
    mv $abs_filename $backdir$1_$nowtime
    
    if [ 0 -eq $"move successful"
    else
     echo "move failed"
    fi
    
   else
    mkdir -p $backdir
   fi
  fi  

 else
  #报错，没有这个文件
  echo "$1 No such file or directory"
 fi

else
 #报错，参数错误
 echo "Parameter error"
fi