import logging
import telnetlib
import time
class TelnetClient():
def __init__(self,):
self.tn = telnetlib.Telnet()
# 此函数实现telnet登录主机
def login_host(self,host_ip,username,password):
try:
# self.tn = telnetlib.Telnet(host_ip,port=23)
self.tn.open(host_ip,port=23)
except:
logging.warning(\'%s网络连接失败\'%host_ip)
return False
# 等待login出现后输入用户名,最多等待10秒
self.tn.read_until(b\'login: \',timeout=10)
self.tn.write(username.encode(\'ascii\') + b\'\n\')
# 等待Password出现后输入用户名,最多等待10秒
self.tn.read_until(b\'Password: \',timeout=10)
self.tn.write(password.encode(\'ascii\') + b\'\n\')
# 延时两秒再收取返回结果,给服务端足够响应时间
time.sleep(2)
# 获取登录结果
# read_very_eager()获取到的是的是上次获取之后本次获取之前的所有输出
command_result = self.tn.read_very_eager().decode(\'ascii\')
if \'Login incorrect\' not in command_result:
logging.warning(\'%s登录成功\'%host_ip)
return True
else:
logging.warning(\'%s登录失败,用户名或密码错误\'%host_ip)
return False
# 此函数实现执行传过来的命令,并输出其执行结果
def execute_some_command(self,command):
# 执行命令
self.tn.write(command.encode(\'ascii\')+b\'\n\')
time.sleep(2)
# 获取命令结果
command_result = self.tn.read_very_eager().decode(\'ascii\')
logging.warning(\'命令执行结果:\n%s\' % command_result)
# 退出telnet
def logout_host(self):
self.tn.write(b"exit\n")
if __name__ == \'__main__\':
host_ip = \'10.82.21.145\'
username = \'root\'
password = \'focus\'
command = \'reboot\'
telnet_client = TelnetClient()
# 如果登录结果返加True,则执行命令,然后退出
if telnet_client.login_host(host_ip,username,password):
telnet_client.execute_some_command(command)
telnet_client.logout_host()
转:https://www.cnblogs.com/lsdb/p/9258964.html
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