Python automated operation and maintenance Pycurl

1. Detect Web Service quality (HTTP status code, request delay, HTTP header information, download speed, etc.)

Web Quality of Service: 1. Service availability

2. Service Response speed

2. Example

import os,sys  import pycurlimport timeurl =  "Http://www.baidu.com"    # #目录的URLc  = pycurl. Curl ()      # #实例化c. setopt (Pycurl. Url,url)      # #定义请求的URL常量c. setopt (Pycurl. connecttimeout, 5)   # #定义请求连接等待时间c. setopt (Pycurl. timeout, 5)      # #定义请求超时时间c. setopt (Pycurl. noprogress, 1)     # #屏蔽下载进度条c. setopt (Pycurl. forbid_reuse, 1)      # #完成交互后强制断开连接, do not reuse c.setopt (Pycurl. maxredirs, 1)      # #指定HTTP重定向的最大数为1c. setopt (Pycurl. dns_cache_timeout,30)    # #设置保存DNS信息的时间为30Sindexfile   = open (Os.path.dirname ( Os.path.realpath (__file__)) + "/content.txt", "WB") c.setopt (Pycurl. Writeheader, indexfile)   # #将返回的HTTP  header directed to Indexfilec.setopt (Pycurl. Writedata, indexfile)     # #将返回的HTML内容定向到indexfile文件对象try:    C.perform ()  # #提交请求except  Exception,e:    print  "error"      indexfile.close ()     sys.exit () Namelookup_time = c.getinfo (c.NAMELOOKUP_ Time)   # #获取DNS解析时间CONNECT_TIME  = c.getinfo (c.connect_time)    ## Get Establish Connection time Pretransfer_time = c.getinfo (c.pretransfer_time)    ## Gets the time from establishing the connection to preparing the transfer Starttransfer_time = c.getinfo (c.starttransfer_time) # #获取从建立连接到传输开始需要时间TOTAL_TIME  = c.getinfo (c.total_time)   # #获取传输的总时间HTTP_CODE  = c.getinfo (c.http_code)     # #获取HTTP状态码SIZE_DOWNLOAD  = c.getinfo (c.size_download)   # #获取下载数据包大小HEADER_SIZE  = c.getinfo (c.header_size)    # #获取HTTP头部大小SPEED_DOWNLOAD  = c.getinfo (c. Speed_download)   # #获取平均下载速度print   "HTTP status code:%s "  %HTTP_CODEprint  "DNS resolution time:%.2f  ms " % (namelookup_time*1000) print " Established connection time:%.2f&nbspMS " % (connect_time*1000) print " Ready to transfer time:%.2f ms " % (pretransfer_time*1000) print " Transfer start time:  %2.f ms " % (starttransfer_time*1000) print " Total time to transfer:  %.2f ms " %" _time*1000) print  "Download packet size:  %d bytes/s"  % (size_download) print  "HTTP header size: %d  Byte " % (header_size) print " average download speed:%d bytes/s "% (speed_download) indexfile.close ()  ## Close File C.close ()   # #关闭Curl对象

Test

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Python automated operation and maintenance Pycurl