python - 只提取接口父行

Question

我正在使用 cisconfparse 模块和正则表达式编写一个 python 代码来循环遍历几个配置文件并找到配置了 dot1x pae 身份验证器和身份验证端口控制行的访问端口接口。如果我从返回的对象循环遍历每个接口，我就能够提取配置语句块。有没有办法只检索接口 GigabitEtherenet 线的第一行？

interface GigabitEthernet1/1
  description USER_INTERFACE 
  switchport access vlan 19
  switchport mode access
  switchport port-security aging time 1
interface GigabitEthernet1/2
  description USER_INTERFACE
  switchport access vlan 19
  switchport mode access
  switchport voice vlan 154
  authentication port-control auto
  mab

块引用

import os
import re
import csv
from ciscoconfparse import CiscoConfParse
file_exists = os.path.isfile(r'c:\users\lang\documents\result.csv')
if not file_exists:
    with open (r'c:\users\lang\documents\result.csv', 'w', newline='') as csv_file:
        Header = ['Device', 'Vul ID', 'Exception', 'Status', 'Code', 'Severity', 'Reason']
        writer = csv.DictWriter(csv_file, fieldnames=Header)
        writer.writeheader()
def check_services():
    configs = (r'C:\Users\Lang\Documents\Tutorials\Python\Scripts\NetworkAudit\Data')

    for config in os.listdir(configs):
        if config.endswith(".txt"):
            filename = os.path.split(config)

         #print(filename[1])
            parse = CiscoConfParse(config)
            intfs = parse.find_blocks('^\sswitchport\smode\saccess')
            for int in intfs:
                print(int)
                dot1x_pae = re.findall('dot1x pae authenticator', int)
                if(not dot1x_pae):
                    with open (r'c:\users\lang\documents\result.csv', 
                            'a', newline='') as csv_file:
                        Header = ['Device', 'Vul ID', 'Exception', 
                        'Status', 'Code', 'Severity', 'Reason']
                        writer = csv.DictWriter(csv_file, 
                                        fieldnames=Header)
                        writer.writerow({'Device':filename[1], 'Vul ID': 
                    'V-220649', 'Exception': 'dot1x not configured', \
                                     'Status': 'Failed', 'Code': '1', 
                                   'Severity': 'High', \
                                     'Reason': int})
                else:
                    with open (r'c:\users\lang\documents\result.csv', 
                      'a', newline='') as csv_file:
                        Header = ['Device', 'Vul ID', 'Exception', 
                             'Status', 'Code', 'Severity', 'Reason']
                        writer = csv.DictWriter(csv_file, 
                             fieldnames=Header)
                        writer.writerow({'Device':filename[1], 'Vul ID': 
                           'V220649', 'Exception': 'dot1x configured', \
                                     'Status': 'Pass', 'Code': '1', 
                                 'Severity': 'High', \
                                     'Reason': 'dot1x configured'})

check_services()

标签： pythonciscoconfparse