python 判断网络通断同时检测网络的状态

思路：通过http判断网络通断，通过ping获取网络的状态

注意：不同平台下，调用的系统命令返回格式可能不同，跨平台使用的时候，注意调整字符串截取的值

主程序：network_testing_v0.3.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2019-04-19 09:50
# @Author  : yuyongxr
# @Site    : 
# @File    : network_testing_v0.1.py
# @Software: PyCharm
#

from icmp_test import *
from http_test import *
from config import *
import threading
import time
import json

http_status = True


def start_check_http(url,title):
    global http_status
    while True:
        if check_http(url,title):
            http_status = True
            # print("http_status :", http_status)
        else:
            http_status = False
            print("http_status :", http_status)
            file = open("http_logs.txt", "a")
            file.write(time.asctime(time.localtime(time.time()))+ " : http status is " +str(http_status) + "
")
        time.sleep(1)


def check_continuous():
    url,title,ip_address,times,domain,dnsserver = analyze_config()
    t_http = threading.Thread(target=start_check_http,args=(url,title))
    t_http.start()


def icmp_continuous():

    global http_status
    global avg_list
    global lost_list

    avg_list = []
    lost_list = []
    url,title,ip_address,times,domain,dnsserver = analyze_config()

    while True:
        if  http_status:
            min, avg, max, lost = "","","",""
            try:
                min, avg, max, lost = shend_icmp_packet(ip_address, times)

                avg_flag = 0
                avg_list.append(float(avg))

                for a in avg_list:
                    avg_flag = avg_flag + a
                avg_flag = avg_flag/len(avg_list)

                lost_flag = 0
                lost_list.append(float(lost))
                for a in lost_list:
                    lost_flag = lost_flag + a
                lost_flag = lost_flag / len(lost_list)

                file = open("result.json")
                content = file.read()
                file.close()
                content = json.loads(content)
                content["ping"]["min"] =float(content["ping"]["min"]) if float(content["ping"]["min"]) <= float(min) else min
                content["ping"]["avg"] = avg_flag
                content["ping"]["max"] = float(content["ping"]["max"]) if float(content["ping"]["max"]) >= float(max) else max
                content["ping"]["lost"] = lost_flag
                content = json.dumps(content)

                file = open("result.json","w")
                file.write(content)
                file.close()

                print(min, avg, max, lost)
            except:
                pass
        else:
            time.sleep(1)
            continue
        time.sleep(5)

def main():
    c_check = threading.Thread(target=check_continuous)
    i_icmp = threading.Thread(target=icmp_continuous)

    c_check.start()
    i_icmp.start()

if __name__ == '__main__':
    main()

获取网络状态：icmp_test.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2019-04-19 18:08
# @Author  : yuyongxr
# @Site    : 
# @File    : icmp_test.py
# @Software: PyCharm
import os

def shend_icmp_packet(ip_address,times):
    try:
        response = os.popen('ping -c ' + times + ' '+ ip_address).read()
        # 取出丢包率
        lost = response[response.index("%")-4:response.index("%")]
        #取出指定的延时字符串
        res = list(response)
        index = 0
        count = 0
        for r in res:
            count += 1
            if r == "=" :
                index = count
        response = response[index + 1:-4]

        # 取出执行的延迟
        i = 0
        j = []
        res1 = list(response)
        for r in res1:
            i += 1
            if r == "/" :
                j.append(i)

        min = response[:j[0]-1]
        avg = response[j[0]:j[1]-1]
        max = response[j[1]:j[2]-1]
        return min,avg,max,lost
    except :
        print("ping exec error")
        file = open("icmp_logs.txt","a")
        file.write(time.asctime(time.localtime(time.time())) +" ping exec error 
")

判断网络通断：http_test.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2019-04-19 18:09
# @Author  : yuyongxr
# @Site    : 
# @File    : http_test.py
# @Software: PyCharm

import requests,bs4,time
from requests.exceptions import ReadTimeout,ConnectTimeout,HTTPError,ConnectionError


def send_http_packet(url):
    requests.packages.urllib3.disable_warnings()
    user_agent = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36"
    headers = {'User-Agent': user_agent}
    url = "http://" + url
    response_html= ""
    file = open("http_logs.txt","a")
    try:
        response = requests.get(url, headers)
        response_html = response.content.decode()
        return response_html
    except ReadTimeout:
        print('Read Timeout')
        file.write(time.asctime(time.localtime(time.time())) + " Read Timeout 
")
        file.close()
        return False
    except ConnectTimeout:
        print('Connect Timeout')
        file.write(time.asctime(time.localtime(time.time())) + " Connect Timeout 
")
        file.close()
        return False
    except HTTPError:
        print('HTTP Error')
        file.write(time.asctime(time.localtime(time.time())) + " HTTP Error 
")
        file.close()
        return False
    except ConnectionError:
        print('Connection Error')
        file.write(time.asctime(time.localtime(time.time())) + " Connection Error 
")
        file.close()
        return False

def check_http(url,title):
    html = send_http_packet(url)
    file = open("http_logs.txt","a")
    if html != False  and title != False :
        soup = bs4.BeautifulSoup(html, 'lxml')
        html_title = ""
        html_title = soup.title.text
        if title in html_title:
            return True
        else:
            return False
    else:
        print('html or title is None')
        file.write(time.asctime(time.localtime(time.time())) + " html or title is None 
")
        file.close()
        return False

配置文件：config.json

{
    "dns":{"domain":"www.baidu.com","dnsserver":"114.114.114.114"},
    "icmp":{"ip_address":"www.baidu.com","times":"5"},
    "http":{"url":"www.baidu.com","title":"百度"}
}

解析配置文件：config.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2019-04-19 18:28
# @Author  : yuyongxr
# @Site    : 
# @File    : config.py
# @Software: PyCharm

import json

def read_config():
    file = open("config.json")
    content = file.read()
    file.close()
    return content

def analyze_config():
    config = read_config()
    config = json.loads(config)

    url = config["http"]["url"]
    title = config["http"]["title"]

    ip_address = config["icmp"]["ip_address"]
    times = config["icmp"]["times"]

    domain = config["dns"]["domain"]
    dnsserver = config["dns"]["dnsserver"]

    return url,title,ip_address,times,domain,dnsserver

结果存储文件：result.json

{"ping": {"min": 46.828, "avg": 137.0165, "max": 150.587, "lost": 0.7446808510638298}}