python 基于windows环境的ftp功能

描述：

1、基于备份服务器部署的py程序，将需要备份主机目录下的内容下载至备份服务器（服务端和远端都是windows server 2008）

2、py程序部署在windows服务器，后台运行，基于bat脚本启停程序

Windows server 2008 FTP环境配置

1、安装FTP服务

开始 --》管理工具 --》服务器管理器

2、安装IIS/FTP角色

打开服务器管理器，找到添加角色，然后点击，弹出添加角色对话框，选择下一步

下一步

选择Web服务器（IIS），然后选择FTP服务，直到安装完成。

参考：http://www.cnblogs.com/Denny_Yang/p/3741041.html

FTP代码

 class Windows_ftp(object):
     '''
     FTP类，基于ftplib模块实现
     connect: 连接
     login: 登陆
     DownLoadFile: 下载文件
     DownLoadFileTree: 下载指定目录下的所有文件和目录
     UpLoadFile: 上传文件
     UpLoadFileTree: 上传指定目录下的所有文件和目录
     isDir: 判断是否为目录
     cwd: 变更目录
     quit: 退出
     '''
     ftp = ftplib.FTP()
     bIsDir = False
     path = ""

     def __init__(self, host, port, username, password):
         self.host = host
         self.port = port
         self.username = username
         self.password = password
         self.buffer = 4096  # 设置的缓冲区大小
         self.ftp.set_debuglevel(0)  # 打开调试级别2，显示详细信息; 级别0关闭调试模式

     def connect(self):
         try:
             self.ftp.connect(self.host, self.port, timeout=10)
             logger.info('*** connected to host "%s"' % self.host)
             return True
         except Exception as err:
             logger.error('cannot reach "%s", %s' % (self.host, err))
             return False

     def login(self):
         try:
             self.ftp.login(self.username, self.password)
             logger.info('*** Login successfully "%s"' % self.username)
             return True
         except Exception as err:
             logger.error('cannot login, %s' % err)
             self.quit()
             return False

     def DownLoadFile(self, LocalFile, RemoteFile):
         file_handler = open(LocalFile, 'wb')
         self.ftp.retrbinary("RETR %s" % RemoteFile, file_handler.write, self.buffer)
         file_handler.close()
         return True

     def show(self, list):
         result = list.split(" ")
         #logger.debug(result)
         if self.path in result and "<DIR>" in result:
             self.bIsDir = True

     def isDir(self, path):
         self.bIsDir = False
         self.path = path
         #this ues callback function ,that will change bIsDir value
         self.ftp.retrlines('LIST', self.show)
         return self.bIsDir

     def DownLoadFileTree(self, LocalDir, RemoteDir):
         if os.path.isdir(LocalDir) == False:  # 判断本地主机是否存在目录，进行创建
             os.makedirs(LocalDir)
         try:
             self.cwd(RemoteDir)
         except Exception as err:
             logger.error("Failed to open the path to the remote host, %s" % err)
             return False
         RemoteNames = self.ftp.nlst()  # 列出远程下载目录下所有内容
         logger.debug("Remote downLoad path:%s, DownLoad files list:%s" % (RemoteDir, RemoteNames))
         for file_or_path in RemoteNames:
             Local = os.path.join(LocalDir, file_or_path)
             if self.isDir(file_or_path):
                 self.DownLoadFileTree(Local, file_or_path)
             else:
                 self.DownLoadFile(Local, file_or_path)
         self.ftp.cwd("..")
         return

     def cwd(self, DIRN):
         try:
             self.ftp.cwd(DIRN)
         except Exception as err:
             logger.error('ERROR:cannot CD to "%s"' % DIRN)
             logger.error(err)
             self.quit()
         logger.debug('*** changed to "%s" folder' % DIRN)

     def UpLoadFile(self, LocalFile, RemoteFile):
         if os.path.isfile(LocalFile) == False:
             return False
         file_handler = open(LocalFile, "rb")
         self.ftp.storbinary('STOR %s' % RemoteFile, file_handler, self.buffer)
         file_handler.close()
         return True

     def UpLoadFileTree(self, LocalDir, RemoteDir):
         if os.path.isdir(LocalDir) == False:
             return False
         LocalNames = os.listdir(LocalDir)
         logger.debug("Remote upLoad path:%s, UpLoad files list:%s" % (RemoteDir, LocalDir))
         self.cwd(RemoteDir)
         for Local in LocalNames:
             src = os.path.join(LocalDir, Local)
             if os.path.isdir(src):
                 self.UpLoadFileTree(src, Local)
             else:
                 self.UpLoadFile(src, Local)
         self.ftp.cwd("..")
         return

     def quit(self):
         self.ftp.quit()

参考：http://www.sharejs.com/codes/python/5619

windows脚本

start.bat

 @echo off
 if exist ./var/hk_win_syncfile.pid (echo "[%date% %time%] Running.."
 ping -n 3 localhost >nul
 exit
 )else ( echo "[%date% %time%] Starting.."
 start pythonw hk_win_syncfile.py
 ping -n 3 localhost >nul
 status.bat
 ping -n 3 localhost >nul
 )

stop.bat

 @echo off

 if exist ./var/hk_win_syncfile.pid (echo "[%date% %time%] Stopping..."
   python -c "import os; os.system('taskkill /F /PID %%s' %% open('./var/hk_win_syncfile.pid').read());"
   del /s hk_win_syncfile.pid
   ping -n 3 localhost >nul
 )else (echo "[%date% %time%] Stopped.."
 ping -n 3 localhost >nul
 )

status.bat

 @echo off
 if exist ./var/hk_win_syncfile.pid (echo "[%date% %time%] Runningg...")else (echo "[%date% %time%] Stopped..")
 ping -n 3 localhost >nul

restart.bat

 @echo off
 if exist ./var/hk_win_syncfile.pid (echo "[%date% %time%] Stopping..."
   python -c "import os; os.system('taskkill /F /PID %%s' %% open('./var/hk_win_syncfile.pid').read());"
   del /s hk_win_syncfile.pid
   ping -n 3 localhost >nul
 )else (echo "[%date% %time%] Stopped.."
 ping -n 3 localhost >nul
 )

 if exist ./var/hk_win_syncfile.pid (echo "[%date% %time%] Running.."
 ping -n 3 localhost >nul
 exit
 )else ( echo "[%date% %time%] Starting.."
 start pythonw hk_win_syncfile.py
 ping -n 3 localhost >nul
 status.bat
 ping -n 3 localhost >nul
 )

参考：http://my.oschina.net/sanpeterguo/blog/337263