Python实现SSH和Telnet

作者: drmeng 分类: Python,随笔发布时间: 2022-11-06 22:50
import traceback
import paramiko
import telnetlib
import time
from paramiko.ssh_exception import SSHException


class SSHClient():       
    def __init__(self,host_ip,username,password):
        try:
            self.ssh_client = paramiko.Transport(host_ip, 22)
            self.ssh_client.connect(username=username, password=password)
            self.ssh_channal = self.ssh_client.open_session()
            self.ssh_channal.settimeout(300)
            self.ssh_channal.get_pty()
            self.ssh_channal.invoke_shell()
            strs = str(self.ssh_channal.recv(65535), encoding='gb2312')
            tmpstr = strs
            while not strs.endswith('>'):
                if tmpstr.endswith('characters.'):
                    self.ssh_channal.send('\n')
                if tmpstr.endswith('[Y/N]:'):
                    self.ssh_channal.send('n\n')
                strs = str(self.ssh_channal.recv(65535), encoding='gb2312')
                tmpstr = tmpstr + strs
            tmppos = tmpstr.rfind('\n')
            self.name_read = tmpstr[tmppos + 1:]            
        except SSHException:
            self.ssh_client=None            


   

class TelnetClient():  
    def __init__(self,host_ip,username,password):
        try:
            self.tn = telnetlib.Telnet(host_ip, port=23, timeout=10) 
            name=self.tn.read_until(b'name: ',5)
            self.tn.write(username.encode('utf-8') + b"\n")
            self.tn.read_until(b'word: ',5)
            self.tn.write(password.encode('utf-8') + b'\n')
            prompt=self.tn.read_until(b'#',5)
            self.tn.write(b' ' + b'\n')        
        except:
            self.tn = None
自动化