python ftp常用操作
需求
快速进行ftp上传 ，下载，查询文件
原来直接在shell下操作：需要【连接，输用户名，输密码，单文件操作，存在超时限制】
太过于繁琐，容易操作失败
改进
一句命令，搞定多文件上传，下载，查询，列表等操作
后期可以加入更强大的功能
源代码
#!/usr/bin/python# -*- coding:utf-8 -*-#ftp.py# wklken@yeah.net#this script is used to do some operations more convenient via ftp
#1.[p]upload many files in the same time,show md5s
#2.[g]download many files in the same time,show md5s
#3.[l]list all the files on ftp site
#4.[f]search a file on ftp site,return True or Flase
#5.[h]show help info
#add upload and download operations 20111210 version0.1
#add md5sum after ops 20120308 version0.2
import sys,os,ftplib,Socket
CONST_HOST = "ip"
CONST_USERNAME = "username"
CONST_PWD = "pwd"
CONST_BUFFER_SIZE = 8192
COLOR_NONE = "\033[m"
COLOR_GREEN = "\033[01;32m"
COLOR_RED = "\033[01;31m"
COLOR_YELLOW = "\033[01;33m"
def connect():
try:
ftp = ftplib.FTP(CONST_HOST)
ftp.login(CONST_USERNAME,CONST_PWD)
return ftp
except socket.error,socket.gaierror:
print("FTP is unavailable,please check the host,username and passWord!")
sys.exit(0)def disconnect(ftp):
ftp.quit()
def upload(ftp, filepath):
f = open(filepath, "rb")
file_name = os.path.split(filepath)[-1]
try:
ftp.storbinary('STOR %s'%file_name, f, CONST_BUFFER_SIZE)
except ftplib.error_perm:
return False
return True
def download(ftp, filename):
f = open(filename,"wb").write
try:
ftp.retrbinary("RETR %s"%filename, f, CONST_BUFFER_SIZE)
except ftplib.error_perm:
return False
return True
def list(ftp):
ftp.dir()def find(ftp,filename):
ftp_f_list = ftp.nlst()
if filename in ftp_f_list:
return True
else:
return Falsedef help():
print("help info:")
print("[./ftp.py l]\t show the file list of the ftp site ")
print("[./ftp.py f filenamA filenameB]\t check if the file is in the ftp site")
print("[./ftp.py p filenameA filenameB]\t upload file into ftp site")
print("[./ftp.py g filenameA filenameB]\t get file from ftp site")
print("[./ftp.py h]\t show help info")
print("other params are invalid")def main():
args = sys.argv[1:]
if len(args) == 0:
print("Params needed!")
sys.exit(0)
ftp = connect()
success_list = []
failed_list = []
if args[0] == "p":
f_list = args[1:]
for up_file in f_list:
if not os.path.exists(up_file):
print(("UPLOAD: %s "+COLOR_RED+"FAILED"+COLOR_NONE+" :file not exist")%up_file)
continue
elif not os.path.isfile(up_file):
print(("UPLOAD: %s "+COLOR_RED+"FAILED"+COLOR_NONE+" :%s is not a file")%(up_file,up_file))
continue
if upload(ftp, up_file):
success_list.append(up_file)
else:
failed_list.append(up_file)
if len(success_list) > 0 :
print((COLOR_GREEN + "UPLOAD SUCCESS: %s" + COLOR_NONE)%(" ".join(success_list)))
print("md5sum:")
for f in success_list:
print( os.popen("md5sum " + f).read()[:-1])
if len(failed_list) > 0:
print((COLOR_RED + "UPLOAD FAILED: %s" + COLOR_NONE)%(" ".join(failed_list)))
elif args[0] == "g":
f_list = args[1:]
for down_file in f_list:
if not find(ftp,down_file):
print(("DOWNLOAD: %s "+COLOR_RED+"FAILED"+COLOR_NONE+" :%s is not in the ftp site")%(down_file,down_file))
continue
if download(ftp, down_file):
success_list.append(down_file)
else:
failed_list.append(down_file)
if len(success_list) > 0 :
print((COLOR_GREEN + "DOWNLOAD SUCCESS: %s" + COLOR_NONE)%(" ".join(success_list)))
print("md5sum:")
for f in success_list:
print( os.popen("md5sum " + f).read()[:-1])
if len(failed_list) > 0:
print((COLOR_RED + "DOWNLOAD FAILED: %s" + COLOR_NONE)%(" ".join(failed_list)))
elif args[0] == "l":
list(ftp)
elif args[0] == "f":
f_list = args[1:]
for f_file in f_list:
if find(ftp,f_file):
print(("SEARCH: %s "+COLOR_GREEN+"EXIST"+COLOR_NONE)%f_file)
else:
print(("SEARCH: %s "+COLOR_RED+"NOT EXIST"+COLOR_NONE)%f_file)
if len(f_file) > 3:
print("Similar File List:")
s = ftp.nlst()
print ", ".join([k for k in s if f_file in k])
elif args[0] == "h":
help()
else:
print("args are invalid!")
help()
disconnect(ftp)if __name__ == "__main__":
main()常用函数
用手册查看，以下只是简略，因为没用用到，[待整理]：
login(user='',passwd='', acct='') 登录到FTP 服务器，所有的参数都是可选的
pwd() 当前工作目录
cwd(path) 把当前工作目录设置为path
dir([path[,...[,cb]]) 显示path 目录里的内容，可选的参数cb 是一个回调函数，会被传给retrlines()方法
nlst([path[,...]) 与dir()类似，但返回一个文件名的列表，而不是显示这些文件名
retrlines(cmd [, cb]) 给定FTP 命令（如“RETR filename”），用于下载文本文件。可选的回调函数cb 用于处理文件的每一行
retrbinary(cmd, cb[,bs=8192[, ra]]) 与retrlines()类似，只是这个指令处理二进制文件。回调函数cb 用于处理每一块（块大小默认为8K）下载的数据。
storlines(cmd, f) 给定FTP 命令（如“STOR filename”），以上传文本文件。要给定一个文件对象f
storbinary(cmd, f[,bs=8192]) 与storlines()类似，只是这个指令处理二进制文件。要给定一个文件对象f，上传块大小bs 默认为8Kbs=8192])
rename(old, new) 把远程文件old 改名为new
delete(path) 删除位于path 的远程文件
mkd(directory) 创建远程目录相关文章