Python结构 - 运行方法尚未完成 [英] Python fabric - run method is not being finished

问题描述

您好，

我准备了一段代码，其目的是以root用户身份登录。

我不能使用sudo方法因为我不想在系统上存在我想控制和直接记录root是不可能的。我的想法是以admin用户身份登录，然后使用su命令切换到root用户。



以下部分包含几乎正常工作的代码为了我。任何想法如何解决？在此先感谢:)



我尝试过：



我的环境：

Python 3.7

布料2.4.0



代码：

Hi There,
I've prepared a piece of code, which intention is to log as a root user.
I can't use "sudo" method because that is not existing on the system that i want to control and logging directly as "root" is impossible. My idea is to log as a "admin" user and then use "su" command to switch to "root" user.

Section below contains code that is almost working for me. Any ideas how to solve that? Thanks in advance:)

What I have tried:

My environment:
Python 3.7
Fabric 2.4.0

Code:

from fabric import Connection
from invoke import Responder

sudopass = Responder(pattern=r'Password:', response='adminPassword\n')

with Connection('192.168.0.106', user="admin", port=22, connect_kwargs={"password": "admin"}) as dss:
    command = "uname -s"
    print("Response on {} is: {}".format(command, dss.run(command)))
    command = "whoami"
    print("Response on {} is: {}".format(command, dss.run(command)))
    command = "su"
    print("Response on {} is after executing su command: {}".format(command,
                                                                    dss.run(command, pty=True, watchers=[sudopass])))
    command = "whoami"
    print("Response on {} is: {}".format(command, dss.run(command)))
print("Script end")

输出：

Output:

Linux
Response on uname -s is: Command exited with status 0.
=== stdout ===
Linux

(no stderr)
dssadmin
Response on whoami is: Command exited with status 0.
=== stdout ===
dssadmin

(no stderr)
Password: 
/home/dssadmin # 

正如你所看到的，发送su命令后脚本卡住了。

As you can see script got stuck after sending "su" command.

推荐答案

我找到了解决方案：

I've found solution:

sudopass = Responder(pattern=r'Password:', response='admin__password\n')

def su(connection, command) -> int:
    return connection.run(f"su -c '{command}'", pty=True, watchers=[sudopass])

with Connection('192.168.0.106', user="dssadmin", port=22, connect_kwargs={"password": "password"}) as ssh_connection:
    command = "uname -s"
    print("Response on {} is: {}".format(command, ssh_connection.run(command)))
    command = "whoami"
    print("Response on {} is: {}".format(command, ssh_connection.run(command)))
    command = "opkg update"
    print("Response on {} is after executing su command: {}".format(command, su(ssh_connection, command)))
   command = "opkg install rescue-utils"
    print("Response on {} is after executing su command: {}".format(command, su(ssh_connection, command)))
    command = "whoami"
    print("Response on {} is: {}".format(command, su(dss, command)))
print("Script end")

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