Python 使用httplib模块实现监测web服务

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以下程序均来自《Python.UNIX和Linux系统管理指南》http://www.linuxidc.com/Linux/2013-06/86448.htm

httplib_check_web.py

#!/usr/bin/env python

import httplib

import sys

def check_webserver(address, port, resource):

        if not resource.startswith(‘/’):

                resource = ‘/’ + resource

        try:

                conn = httplib.HTTPConnection(address, port)

                print ‘HTTP connection created successfully’

                req = conn.request(‘GET’, resource)

                print ‘request for %s successful’ % resource

                response = conn.getresponse()

                print ‘response status: %s’ % response.status

        except httplib.error, e:

                print “HTTP connection failed: %s” % e

                return False

        finally:

                conn.close()

                print ‘HTTP connection closed successfully’

        if response.status in [200, 301]:

                return True

        else:

                return False

if __name__ == ‘__main__’:

        from optparse import OptionParser

        parser = OptionParser()

        parser.add_option(“-a”, “–address”, dest=”address”, default=”localhost”, help=”ADDRESS for webserver”, metavar=”ADDRESS”)

        parser.add_option(“-p”, “–port”, dest=”port”, type=”int”, default=80, help=”PORT for webserver”, metavar=”PORT”)

        parser.add_option(“-r”, “–resource”, dest=”resource”, default=”index.html”, help=”RESOURCE to check”, metavar=”RESOURCE”)

        (options, args) = parser.parse_args()

        print ‘options: %s, args: %s’ %(options, args)

        check = check_webserver(options.address, options.port, options.resource)

        print ‘check_webserver returned %s’ % check

        sys.exit(not check)

运行结果:

成功

[root@CentOS python]# python httplib_check_web.py -a 192.168.137.2 -r index.html

options: {‘resource’: ‘index.html’, ‘port’: 80, ‘address’: ‘192.168.137.2’}, args: []

HTTP connection created successfully

request for /index.html successful

response status: 200

HTTP connection closed successfully

check_webserver returned True

不成功,网页不存在的情况

[root@centos python]# python httplib_check_web.py -a 192.168.137.2 -r ppp.html

options: {‘resource’: ‘ppp.html’, ‘port’: 80, ‘address’: ‘192.168.137.2’}, args: []

HTTP connection created succes

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