警告
本文最后更新于 2019-02-04，文中内容可能已过时。
本文介绍的是一个关于站点全网页加载时间的一个脚本,前段时间在网络上找了很久关于在线站点全页加载的时间的,一直没有找到合适的,翻越了很久的github终于找到了一个比较适合我现在需求的一个项目,于是拿下来修改了下,目前这个有个问题是不能异步加载
参考项目:[https://github.com/donjajo/loady.git]
修改代码提交地址:[https://github.com/0x5c0f/zbx_page_load.git]
脚本依赖的额外模块: bs4(Beautiful Soup 4.x)
模块安装:
pip3 install bs4 (或 python3 -m pip install bs4)
检测脚本page-load.py
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#!/usr/bin/env python3
#
#UserParameter=custom.page.load[*],/opt/sh/zbx_discover_site/page-load.py $1
#
import requests
from bs4 import BeautifulSoup
import re
import urllib.parse
import sys
from time import time
debug=1
class Loady:
files = {
'js' : {},
'css' : {},
'img' : {}
}
def __init__( self, url, headers = {} ):
if not isinstance( headers, dict ):
raise ValueError( 'Headers argument must be dict instance' )
self.url = url
self.total_time = 0
self.js = []
self.css = []
self.img = []
self.http_headers = headers
self.soup = None
self.total_size = 0
def _get( self, tag ):
"""Gets all site additional files and prepares their URL to be loaded"""
# Get current URL data
domain_scheme, domain, _, _, _, _ = urllib.parse.urlparse( self.url )
urls = []
if tag == 'script':
# Get all script tag with src attribute
# print(self.soup.find_all( 'script', { 'src' : re.compile( r'.*' ) } ))
tags = self.soup.find_all( 'script', { 'src' : re.compile( r'.*' ) } )
elif tag == 'img':
# print(self.soup.find_all( 'img', { 'src' : re.compile( r'.*' ) } ))
tags = self.soup.find_all( 'img', { 'src' : re.compile( r'.*' ) } )
# elif tag is 'i':
# print(tags = self.soup.find_all('i', {'style': re.compile(r'.*')}))
# tags = self.soup.find_all('i', {'style': re.compile(r'.*')})
else:
# Get all link tag with rel=stylesheet
# print(self.soup.find_all( 'link', { 'rel' : 'stylesheet' } ))
tags = self.soup.find_all( 'link', { 'rel' : 'stylesheet' } )
for each_tag in tags:
# Get the value of src or href
val = each_tag[ 'src' ] if tag == 'script' or tag == 'img' else each_tag[ 'href' ]
#val = ''
#if tag is 'script' or tag is 'img':
# val = each_tag['src']
#else:
# val = each_tag['href']
# parse the URL of the gotten URL
url = urllib.parse.urlparse( val )
if not url[ 0 ] and url[ 1 ]:
# If URL has no scheme but has domain name, we assume it is a URL that supports HTTP(S). We just append the main site scheme to it
if not val.startswith("//"):
urls.append( '{0}://{1}'.format( domain_scheme, val ) )
else:
urls.append( '{0}:{1}'.format( domain_scheme, val ) )
elif not url[ 1 ]:
# URL has no domain, its a relative path. Append the domain name to it
if not val.startswith("/"):
urls.append( '{0}://{1}/{2}'.format( domain_scheme, domain, val ) )
else:
urls.append( '{0}://{1}{2}'.format( domain_scheme, domain, val ) )
else:
# Its an absolute path, no issues bro!
urls.append( val )
if tag == 'script':
self.js = urls
elif tag == 'img':
self.img = urls
else:
self.css = urls
def _load( self, t ):
"""Load the gotten links, check for response time and size. Appends it to self.files object"""
_link_obj = []
if t == 'script':
_link_obj = self.js
elif t == 'img':
_link_obj = self.img
else:
_link_obj = self.css
# for link in ( self.js if t is 'script' else self.css ):
for link in (_link_obj):
if debug == 1:
print(link)
try:
start = time()
r = requests.get( link )
end = time()
# Calculate the total time taken to load link
response_time = ( end - start )
# Page loaded successfully
if r.status_code == 200:
# Get the size of page content
size = sys.getsizeof(r.content) if t == 'img' else sys.getsizeof(r.text)
# Add results to self.files object
obj = ''
if t == 'style':
obj = 'css'
elif t == 'img':
obj = 'img'
else:
obj = 'js'
self.files[obj][link] = {'byte_size': size, 'load_time': response_time}
# Sum up total time to the existing load time
self.total_time += response_time
self.total_size += size
except Exception as e:
if debug == 1:
print(e,link)
continue
def get( self ):
"""Loads the main website, calculate response time, page size and get additional files in site"""
start = time()
r = requests.get( self.url, headers = self.http_headers )
stop = time()
if r.status_code == 200:
response = r.text
self.total_time = self.total_time + ( stop - start )
self.total_size += sys.getsizeof( response )
self.soup = BeautifulSoup( response, 'html.parser' )
self._get( 'script' )
self._load( 'script' )
self._get( 'style' )
self._load( 'style' )
self._get( 'img' )
self._load('img')
load = Loady( sys.argv[1] , headers={ 'User-Agent' : 'zabbix pageload monitor' })
#load = Loady( sys.argv[1], headers={ 'User-Agent' : 'Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0' })
load.get()
#print("{TIME:\"",load.total_time,"\"}",sep='')
# print("%.3f"%load.total_time)
print( load.total_size ) # total load size
# print( load.files ) #load file and load size
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由于我是用来监控的, 于是在zabbix创建了一个自动发现.
自动发现脚本discover_site.py
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#!/usr/bin/env python3
#discover site
file = open("/opt/sh/zbx_discover_site/site.txt")
print("{")
print("\t\"data\":[")
try:
lines = file.readlines();
count = 1
for line in lines:
line = line.strip("\n")
print("\t\t{")
print("\t\t\t\"{#SITE}\":\"",end='')
print(line,end='')
print("\"")
print("\t\t}",end='')
if count < len(lines):
print(",")
count = count + 1
finally:
file.close()
print("\n\t]")
print("}")
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站点配置文件site.txt
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https://www.example.com
http://www.example.com
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zabbix 前端配置,我是直接固定一个主机来还专门作这个的.配置成模板的需求感觉不大。
创建自动发现: 配置–主机(模板)–自动发现–创建自动发现,添加键址添加: discover.site
过滤器配置:
{#SITE} 匹配 @Linux site for autodiscovery
监控项原型配置:
名称: page load on [{#SITE}]
键值: custom.page.load[{#SITE}]
信息类型:浮点型
单位:s
数据更新时间: 300 (个人建议)
图形原型配置:
名称: page load on {#SITE}
新建系统正则表达式:
名字: Linux site for autodiscovery (与上述过滤器配置一致)
结果为真:^((http|ftp|https)://) (此处应该配置标准的url匹配规则,不过我这儿就之匹配了以http/https/ftp开头的就让他通过了)
所有配置项完成后,重启zabbix agent 就可以了,如果你是配置的模板,把模板加入到对应主机就可以了.
