Python 基于Python实现的ssh兼sftp客户端(上)

基于Python实现的ssh兼sftp客户端

 

by:授客 QQ：1033553122

实现功能

实现ssh客户端兼ftp客户端：实现远程连接，执行linux命令，上传下载文件

测试环境

Win7 64位

Python 3.3.4

paramiko 1.15.2

下载地址：

https://pypi.python.org/pypi/paramiko/1.15.2

https://pan.baidu.com/s/1i4SJ1CL

cryptography-1.0-cp34-none-win_amd64.whl

(如果paramiko可以正常安装完，则不需要安装该类库)

下载地址：

https://pypi.python.org/pypi/cryptography/1.0

https://pan.baidu.com/s/1jIRBJvg

安装好后，找到nt.py(本例中路径为：

Lib\site-packages\pycrypto-2.6.1-py3.4-win-amd64.egg\Crypto\Random\OSRNG\nt.py),修改

import winrandom

为

from Crypto.Random.OSRNG import winrandom

如下

#import winrandom

from Crypto.Random.OSRNG import winrandom

以解决ImportError: No module named 'winrandom'错误

VS2010

因操作系统而异，可能需要安装VS2010，以解决包依赖问题

代码实践

mysshclient.py

 

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

__author__
=
'shouke'

import

os
from

paramiko.client
import
AutoAddPolicy
from

paramiko.client
import
SSHClient
from

otherTools
import
OtherTools

class

MySSHClient:
    def

__init__(self):
        self.ssh_client
= SSHClient()

#
连接登录
    def

connect(self,
hostname, port, username, password):
        try:
            print('正在远程连接主机：%s'

% hostname)
            self.ssh_client.set_missing_host_key_policy(AutoAddPolicy())
            self.ssh_client.connect(hostname=hostname,

port=port,

username=username,

password=password)
            return

[True,

'']
        except

Exception
as
e:
            print('连接出错了%s'

% e)
            return

[False,

'%s'
% e]

#
远程执行命令
    def

exec_command(self,
command):
        try:
            print('正在执行命令：'+
command)
            stdin,
stdout, stderr =
self.ssh_client.exec_command(command)
            print('命令输出：')
            print(stdout.read())

# 读取命令输出
            return

[True,

tuple]
        except

Exception
as
e:
            print('执行命:%s令出错'

% command)
            return

[False,'%s'

% e]

#
下载文件(非目录文件)
    def

download_file(self,
remotepath, localpath):
        try:
            localpath
= os.path.abspath(localpath)
            localpath
= localpath.replace('\t',

'/t').replace('\n',

'/n').replace('\r',

'/r').replace('\b',

'/b')

# 转换特殊字符
            localpath
= localpath.replace('\f',

'/f')
            print('转换后的本地目标路径为：%s'

% localpath)
            head,
tail = os.path.split(localpath)
            if
not
tail:
                print('下载文件：%s
到本地：%s失败，本地文件名不能为空'
% (remotepath, localpath))
                return

[False,

'下载文件：%s
到本地：%s失败，本地文件名不能为空'
% (remotepath, localpath)]
            if
not
os.path.exists(head):
                print('本地路径：%s不存在，正在创建目录'

% head)
                OtherTools().mkdirs_once_many(head)

sftp_client
=
self.ssh_client.open_sftp()
            print('正在下载远程文件：%s
到本地：%s'
% (remotepath, localpath))
            sftp_client.get(remotepath,
localpath)
            sftp_client.close()
            return

[True,

'']
        except

Exception
as
e:
            print('下载文件：%s
到本地：%s
出错:%s'
% (remotepath, localpath, e))
            return

[False,

'下载文件：%s
到本地：%s
出错:%s'
% (remotepath, localpath, e)]

#
上传文件(非目录文件）
    def

upload_file(self,
localpath, remotepath):
        try:
            localpath
= localpath.rstrip('\\').rstrip('/')
            localpath
= localpath.replace('\t',

'/t').replace('\n',

'/n').replace('\r',

'/r').replace('\b',

'/b')

# 转换特殊字符
            localpath
= localpath.replace('\f',

'/f')
            localpath
= os.path.abspath(localpath)
            print('转换后的本地文件路径为：%s'

% localpath)

remotepath
= remotepath.rstrip('\\').rstrip('/')
            head,
tail = os.path.split(localpath)
            if
not
tail:
                print('上传文件：%s
到远程：%s失败，本地文件名不能为空'
% (localpath, remotepath))
                return

[False,

'上传文件：%s
到远程：%s失败，本地文件名不能为空'
% (localpath, remotepath)]
            if
not
os.path.exists(head):
                print(

'上传文件：%s
到远程：%s失败，父路径不存在'
% (localpath, remotepath, head))
                return

[False,

'上传文件：%s
到远程：%s失败，父路径不存在'
% (localpath, remotepath, head)]

if
not
(remotepath.startswith('/')

or
remotepath.startswith('.')):
                print('上传文件：%s
到远程：%s失败，远程路径填写不规范%s'
% (localpath, remotepath,remotepath))
                return

[False,

'上传文件：%s
到远程：%s失败，远程路径填写不规范%s'
% (localpath, remotepath,remotepath)]
            sftp_client
=
self.ssh_client.open_sftp()
            head,
tail = os.path.split(remotepath)

head
= sftp_client.normalize(head)
# 规范化路径
            remotepath
= head +
'/'
+ tail
            print('规范化后的远程目标路径：',
remotepath)

print('正在上传文件：%s
到远程：%s'
% (localpath, remotepath))
            sftp_client.put(localpath,
remotepath)
            sftp_client.close()
            return

[True,

'']
        except

Exception
as
e:
            print('上传文件：%s
到远程：%s
出错:%s'
% (localpath, remotepath, e))
            return

[False,

'上传文件：%s
到远程：%s
出错:%s'
% (localpath, remotepath, e)]

def

close(self):
        self.ssh_client.close()

Python 基于Python实现的ssh兼sftp客户端(下)