通过python在windows上执行ssh

Question

我正在尝试执行ssh命令：ssh-tuser1@hostname"；sudo su-user2-s/bin/bash"；

我下面的代码不起作用：

expectations = [('password', '******')]
cmd = ['ssh','-t','user1@hostname','"','sudo','su','-','user2','-s','/bin/bash', '"']
try:
clean_non_empty_lines = []
expectations = [(None, None)] + expectations
p = subprocess.Popen(cmd,stdin=subprocess.PIPE,stderr=subprocess.STDOUT,
stdout=subprocess.PIPE,
bufsize=1)
last_line = None
for expectation, response in expectations:
if expectation is not None:
expectation = re.compile('$(.*)' + expectation + '(.*)')
if expectation is not None and expectation.search(last_line):
stdout, stderr = p.communicate(input=bytes(response, 'utf-8'))
else:
stdout, stderr = p.communicate()
if stderr is not None:
error = str(stderr.decode('ascii')).rstrip()
print(error)
if stdout is not None:
last_line = stdout.decode('utf8')
for line in iter(re.split('rn|n', last_line)):
line = str(line.rstrip())
if line != '':
print(line)
line = line.strip()
if line:
clean_non_empty_lines += [line]
p.stdout.close()
p.wait()

我得到以下错误：

Pseudo-terminal will not be allocated because stdin is not a terminal.
sudo: no tty present and no askpass program specified

有办法让它发挥作用吗？因此，在执行sudo su-user2…之后，程序会用变量"expects"中指定的密码来响应密码提示？

Answer 1

试试这个https://pypi.org/project/pysftp/我以前用过这个来制作我自己的类似白蚁的应用程序，但最终使用了带有node子进程和mongo的electron。

p.s后来我勉强完成了while项目，因为我不知道如何在电子中获得终端窗口。

Answer 2

由于su命令，这可能与您无关，但我可能会让您更接近一步：

我的桌面是Windows，我必须经常登录ISP的共享Linux服务器。为此，我使用putty作为我的客户端。为了避免在登录时提供密码，我使用PuTTYgen生成一个公钥/私钥对。前者是我通过它的cPanel设施安装在服务器上的，而后者进入C:Usersmy-windows-id.sshid_rsa。我现在可以通过SSHLinux命令执行：

from subprocess import Popen, PIPE
WINDOWS = False
private_key_file = r'C:Usersmy-windows-id.sshid_rsa' if WINDOWS else '/c/Users/my-windows-id/.ssh/id_rsa'
p = Popen(f'ssh -i "{private_key_file}" my-domain.com', shell=True, stdout=PIPE, stderr=PIPE, stdin=PIPE)
stdout, stderr = p.communicate(b'cat malware.txtnlogoutn')
print('stdout:n')
print(stdout.decode())
print('stderr:n')
print(stderr.decode())
p.wait()

然而，当我尝试从Windows命令提示符运行此程序时(上面的WINDOWS变量设置为TRUE(，出现了一个问题。弹出以下消息：

The authenticity of host 'my-domain.com (xx.xx.xx.xx)' can't be established.
RSA key fingerprint is 0b:a6:08:39:d9:a1:90:2f:bd:a2:ff:2e:67:2d:1a:1f.
Are you sure you want to continue connecting (yes/no)? yes

我指定了yes来查看会发生什么，尽管我一开始就不应该得到那个消息。程序确实运行了，但stderr输出中的输出是：

Could not create directory '/home/my-windows-id/.ssh'.
Failed to add the host to the list of known hosts (/home/my-windows-id/.ssh/known_hosts).

现在我不知道为什么我会犯这个错误。我碰巧有一个C:home目录，它是一个连接目录，也许这就是问题的原因。但这是查找known_hosts文件的错误目录，该文件应该已经有了必要的条目。我碰巧在Windows下安装了Git，因此我可以在Git Bash外壳下运行程序：

$ python test.py
stdout:

----------- SCAN SUMMARY -----------
Known viruses: 2086420
Engine version: devel-clamav-0.99-beta1-632-g8a582c7
Scanned directories: 9499
Scanned files: 91169
Infected files: 0
Data scanned: 2075.55 MB
Data read: 11297.00 MB (ratio 0.18:1)
Time: 772.194 sec (12 m 52 s)

----------- SCAN SUMMARY -----------
Known viruses: 2086420
Engine version: devel-clamav-0.99-beta1-632-g8a582c7
Scanned directories: 0
Scanned files: 0
Infected files: 0
Data scanned: 0.00 MB
Data read: 0.00 MB (ratio 0.00:1)
Time: 4.328 sec (0 m 4 s)

----------- SCAN SUMMARY -----------
Known viruses: 2086420
Engine version: devel-clamav-0.99-beta1-632-g8a582c7
Scanned directories: 0
Scanned files: 20
Infected files: 0
Data scanned: 0.94 MB
Data read: 0.56 MB (ratio 1.67:1)
Time: 4.587 sec (0 m 4 s)

stderr:
Pseudo-terminal will not be allocated because stdin is not a terminal.
TERM environment variable not set.

stderr输出有几个消息，其中包括一个与stdin有关的消息，但cat命令确实有效。

如果导致问题，这将使您通过初始登录。也许您可以为第二次登录安装第二个公钥/私钥对。我只是不确定一旦SSH连接完成，这是否会对su命令产生影响