Python - PARAMICO SSH 關閉會話

Question

在我的sendShell對象通過 list commandfactory[]運行后，我需要幫助來終止我的 SSH 會話。

我有一個 Python 腳本，我使用paramiko通過 ssh 連接到 cisco 實驗室路由器； 執行commandfactory[]所有命令； 並將結果輸出到標准輸出。 一切似乎都在工作，除了在我的所有命令運行后我似乎無法關閉 SSH 會話。 會話只是保持打開狀態，直到我終止我的腳本。

import threading, paramiko, re, os
 
class ssh:
    shell = None
    client = None
    transport = None
 
 
    def __init__(self, address, username, password):
        print("Connecting to server on ip", str(address) + ".")
        self.client = paramiko.client.SSHClient()
        self.client.set_missing_host_key_policy(paramiko.client.AutoAddPolicy())
        self.client.connect(address, username=username, password=password, look_for_keys=False)
        self.transport = paramiko.Transport((address, 22))
        self.transport.connect(username=username, password=password)
 
        thread = threading.Thread(target=self.process)
        thread.daemon = True
        thread.start()
 
    def closeConnection(self):
        if(self.client != None):
            self.client.close()
            self.transport.close()
 
    def openShell(self):
        self.shell = self.client.invoke_shell()
 
    def sendShell(self):
        self.commandfactory = []
        print("\nWelcome to Command Factory. Enter Commands you want to execute.\nType \"done\" when you are finished:")
        while not re.search(r"done.*", str(self.commandfactory)):
            self.commandfactory.append(input(":"))
            if self.commandfactory[-1] == "done":
                del self.commandfactory[-1]
                break

        print ("Here are the commands you're going to execute:\n" + str(self.commandfactory))
        if(self.shell):
            self.shell.send("enable" + "\n")
            self.shell.send("ilovebeer" + "\n")
            self.shell.send("term len 0" + "\n")
            for cmdcnt in range(0,len(self.commandfactory)):
                self.shell.send(self.commandfactory[cmdcnt] + "\n")
            self.shell.send("exit" + "\n")
            self.shell.send("\n")
                                           
        else:
            print("Shell not opened.")
 
    def process(self):
        global connection
        while True:
            # Print data when available
            if self.shell != None and self.shell.recv_ready():
                alldata = self.shell.recv(1024)
                while self.shell.recv_ready():
                    alldata += self.shell.recv(1024)
                strdata = str(alldata, "utf8")
                strdata.strip()
                print(strdata, end = "")


 
sshUsername = "adrian"
sshPassword = "ilovebeer"
sshServer = "10.10.254.129"

connection = ssh(sshServer, sshUsername, sshPassword)
connection.openShell()

while True:
    connection.sendShell()

 

一旦我的命令commandfactory列表中的所有命令都已運行（代碼如下），我希望 SSH 會話終止。

def sendShell(self):
    self.commandfactory = []
    print("\nWelcome to Command Factory. Enter Commands you want to execute.\nType \"done\" when you are finished:")
    while not re.search(r"done.*", str(self.commandfactory)):
        self.commandfactory.append(input(":"))
        if self.commandfactory[-1] == "done":
            del self.commandfactory[-1]
            break

    print ("Here are the commands you're going to execute:\n" + str(self.commandfactory))
    if(self.shell):
        self.shell.send("enable" + "\n")
        self.shell.send("ilovebeer" + "\n")
        self.shell.send("term len 0" + "\n")
        for cmdcnt in range(0,len(self.commandfactory)):
            self.shell.send(self.commandfactory[cmdcnt] + "\n")
        self.shell.send("exit" + "\n")
        self.shell.send("\n")

我的代碼主要取自https://daanlenaerts.com/blog/2016/07/01/python-and-ssh-paramiko-shell/ 。 非常感謝 Daan Lenaerts 的精彩博客。 我確實進行了自己的更改以滿足我的需求。

Answer 1

使用 self.transport.close() 結束 sendShell 函數，參見http://docs.paramiko.org/en/2.0/api/transport.html

Answer 2

能夠通過在我的迭代器之后添加 self.shell.transport.close() 來解決。

def sendShell(self):
    self.commandfactory = []
    print("\nWelcome to Command Factory. Enter Commands you want to execute.\nType \"done\" when you are finished:")
    while not re.search(r"done.*", str(self.commandfactory)):
        self.commandfactory.append(input(":"))
        if self.commandfactory[-1] == "done":
            del self.commandfactory[-1]
            break

    print ("Here are the commands you're going to execute:\n" + str(self.commandfactory))
    if(self.shell):
        self.shell.send("enable" + "\n")
        self.shell.send("ilovebeer" + "\n")
        self.shell.send("term len 0" + "\n")
        for cmdcnt in range(0,len(self.commandfactory)):
            self.shell.send(self.commandfactory[cmdcnt] + "\n")
        self.shell.send("exit" + "\n")
        self.shell.transport.close()