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from cmath import log
from ftplib import FTP
import os
import sys
import time
import socket
import subprocess
class MyFTP:
"""
ftp自动下载、自动上传脚本，可以递归目录操作
作者：欧阳鹏
博客地址：http://blog.csdn.net/ouyang_peng/article/details/79271113
"""
def __init__(self, host, port=21):
""" 初始化 FTP 客户端
参数:
host:ip地址
port:端口号
"""
self.host = host
self.port = port
self.ftp = FTP()
self.ftp.encoding = 'utf8'
path = os.path.dirname(os.path.realpath(__file__))
self.file_list = []
def login(self, username, password):
""" 初始化 FTP 客户端
参数:
username: 用户名
password: 密码
"""
try:
timeout = 60
socket.setdefaulttimeout(timeout)
self.ftp.set_pasv(True)
self.debug_print('开始尝试连接到 %s' % self.host)
self.ftp.connect(self.host, self.port)
self.debug_print('成功连接到 %s' % self.host)
self.debug_print('开始尝试登录到 %s' % self.host)
self.ftp.login(username, password)
self.debug_print('成功登录到 %s' % self.host)
self.debug_print(self.ftp.welcome)
except Exception as err:
self.deal_error("FTP 连接或登录失败 ，错误描述为：%s" % err)
pass
def is_same_size(self, local_file, remote_file):
"""判断远程文件和本地文件大小是否一致
参数:
local_file: 本地文件
remote_file: 远程文件
"""
try:
remote_file_size = self.ftp.size(remote_file)
except Exception as err:
remote_file_size = -1
try:
local_file_size = os.path.getsize(local_file)
except Exception as err:
local_file_size = -1
self.debug_print('local_file_size:%d , remote_file_size:%d' % (local_file_size, remote_file_size))
if remote_file_size == local_file_size:
return 1
else:
return 0
def download_file(self, local_file, remote_file):
"""从ftp下载文件
参数:
local_file: 本地文件
remote_file: 远程文件
"""
self.debug_print("download_file()---> local_path = %s ,remote_path = %s" % (local_file, remote_file))
if self.is_same_size(local_file, remote_file):
self.debug_print('%s 文件大小相同，无需下载' % local_file)
return
else:
try:
self.debug_print('>>>>>>>>>>>>下载文件 %s ... ...' % local_file)
buf_size = 1024
file_handler = open(local_file, 'wb')
self.ftp.retrbinary('RETR %s' % remote_file, file_handler.write, buf_size)
file_handler.close()
except Exception as err:
self.debug_print('下载文件出错，出现异常：%s ' % err)
return
def download_file_tree(self, local_path, remote_path):
"""从远程目录下载多个文件到本地目录
参数:
local_path: 本地路径
remote_path: 远程路径
"""
print("download_file_tree()---> local_path = %s ,remote_path = %s" % (local_path, remote_path))
try:
self.ftp.cwd(remote_path)
except Exception as err:
self.debug_print('远程目录%s不存在，继续...' % remote_path + " ,具体错误描述为：%s" % err)
return
if not os.path.isdir(local_path):
self.debug_print('本地目录%s不存在，先创建本地目录' % local_path)
os.makedirs(local_path)
self.debug_print('切换至目录: %s' % self.ftp.pwd())
self.file_list = []
self.ftp.dir(self.get_file_list)
remote_names = self.file_list
self.debug_print('远程目录 列表: %s' % remote_names)
for item in remote_names:
file_type = item[0]
file_name = item[1]
local = os.path.join(local_path, file_name)
if file_type == 'd':
print("download_file_tree()---> 下载目录： %s" % file_name)
self.download_file_tree(local, file_name)
elif file_type == '-':
print("download_file()---> 下载文件： %s" % file_name)
self.download_file(local, file_name)
self.ftp.cwd("..")
self.debug_print('返回上层目录 %s' % self.ftp.pwd())
return True
def upload_file(self, local_file, remote_file):
"""从本地上传文件到ftp
参数:
local_path: 本地文件
remote_path: 远程文件
"""
if not os.path.isfile(local_file):
self.debug_print('%s 不存在' % local_file)
return
if self.is_same_size(local_file, remote_file):
self.debug_print('跳过相等的文件: %s' % local_file)
return
buf_size = 1024
file_handler = open(local_file, 'rb')
self.ftp.storbinary('STOR %s' % remote_file, file_handler, buf_size)
file_handler.close()
self.debug_print('上传: %s' % local_file + "成功!")
def upload_file_tree(self, local_path, remote_path):
"""从本地上传目录下多个文件到ftp
参数:
local_path: 本地路径
remote_path: 远程路径
"""
if not os.path.isdir(local_path):
self.debug_print('本地目录 %s 不存在' % local_path)
return
self.ftp.cwd(remote_path)
self.debug_print('切换至远程目录: %s' % self.ftp.pwd())
local_name_list = os.listdir(local_path)
for local_name in local_name_list:
src = os.path.join(local_path, local_name)
if os.path.isdir(src):
try:
self.ftp.mkd(local_name)
except Exception as err:
self.debug_print("目录已存在 %s ,具体错误描述为：%s" % (local_name, err))
self.debug_print("upload_file_tree()---> 上传目录： %s" % local_name)
self.upload_file_tree(src, local_name)
else:
self.debug_print("upload_file_tree()---> 上传文件： %s" % local_name)
self.upload_file(src, local_name)
self.ftp.cwd("..")
def close(self):
""" 退出ftp
"""
self.debug_print("close()---> FTP退出")
self.ftp.quit()
def debug_print(self, s):
""" 打印日志
"""
self.write_log(s)
def deal_error(self, e):
""" 处理错误异常
参数：
e：异常
"""
log_str = '发生错误: %s' % e
self.write_log(log_str)
sys.exit()
def write_log(self, log_str):
""" 记录日志
参数：
log_str：日志
"""
time_now = time.localtime()
date_now = time.strftime('%Y-%m-%d', time_now)
format_log_str = "%s ---> %s \n " % (date_now, log_str)
print(format_log_str)
def get_file_list(self, line):
""" 获取文件列表
参数：
line：
"""
file_arr = self.get_file_name(line)
if file_arr[1] not in ['.', '..']:
self.file_list.append(file_arr)
def get_file_name(self, line):
""" 获取文件名
参数：
line：
"""
pos = line.rfind(':')
while (line[pos] != ' '):
pos += 1
while (line[pos] == ' '):
pos += 1
file_arr = [line[0], line[pos:]]
return file_arr
if __name__ == "__main__":
path = os.path.dirname(os.path.realpath(__file__))
upyunUsername = os.environ["UPYUNUSERNAME"]
upyunPassword = os.environ["UPYUNPASSWORD"]
my_ftp = MyFTP("v0.ftp.upyun.com")
my_ftp.login(upyunUsername, upyunPassword)
if os.sep == "\\":
pass
elif os.sep == "/":
my_ftp.download_file_tree("image/", "/image/")
if os.sep == "\\":
pass
elif os.sep == "/":
my_ftp.upload_file_tree("image/", "/image/")
my_ftp.close()
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