xip opener

certain understanding of the cookie workflow. In addition, many websites use the verification code mechanism to prevent automatic login. the intervention of the verification code will make the login process troublesome, but it is not too difficult to handle. In reality, the login process of douban. fm To simulate a clean login process (without using an existing cookie), I use the chromium stealth mode. It is worth noting that python provides three http libraries: httplib, urllib, and urllib2

) by certain websites in order to identify users and perform session tracking.For example, some sites need to log in to access a page, before you log in, you want to crawl a page content is not allowed. Then we can use the URLLIB2 library to save our registered cookies, and then crawl the other pages to achieve the goal.Before we do, we must first introduce the concept of a opener.1.OpenerWhen you get a URL you use a

plaincopyprint? #! /Bin/bash Ifs_old = $ ifs # Save the original ifs value for recovery after use Ifs = $ '\ n' # change the IFS value to $' \ n'. Note that if you press enter as the separator, ifs must be: $ '\ n' For I in $ (cat pwd.txt) Then pwd.txt comes from this command: CAT/etc/passwd> pwd.txt Do Echo $ I Done Ifs = $ ifs_old # restore the original ifs Value #! /Bin/bashifs_old = $ ifs # Save the original ifs value to restore ifs = $ '\ n' After use # change the IFS value to $'

, the actual situation is not so smooth. After modifying the host according to official instructions, the problem still exists. The error message displayed on the console indicates an error occurred while loading the cross-origin resource. 192.168.3.126 is the ip address of the Local intranet, and the domain name of the faulty resource is 192.168.3.126.xip.io. If you do not have a deep understanding of RN, you can come up with two ideas, which will be detailed later. Enables loading of faulty r

There are many practical tool classes in the Python standard library. here we will summarize the usage details of urllib2: Proxy setting, Timeout setting, adding specific, Cookie to HTTPRequest, using http put and DELETE methods. Proxy settings By default, urllib2 uses the environment variable http_proxy to set HTTP Proxy. If you want to explicitly control the Proxy in the program without being affected by environment variables, you can use the following method: The code is as follows: Import

To query the score, you need to log on and then display the score of each discipline, but only the score is displayed without the score, that is, the weighted average score. Let's talk about our school website: Http://jwxt.sdu.edu.cn: 7777/zhxt_bks/zhxt_bks.html To query the score, you need to log on and then display the score of each discipline, but only the score is displayed without the score, that is, the weighted average score. We first prepare a POST data, then prepare a cookie for recei

module is definitely its opener,The Openerdirector action class for the URLLIB2 module. This is a class that manages many processing classes (Handler). And all of these Handler classes correspond to the corresponding protocol, or special functions. Each has the following processing class:BasehandlerHttperrorprocessorHttpdefaulterrorhandlerHttpredirecthandlerProxyhandlerAbstractbasicauthhandlerHttpbasicauthhandlerProxybasicauthhandlerAbstractdigestaut

. urlencode ({"a": "1", "B": "2 "}) # Final_url = url + "? "+ Url_params # Print final_url # Data = urllib2.urlopen (final_url). read () # Print "Method: get", len (data) Failed t urllib2.HTTPError, e: Print "Error Code:", e. code Failed t urllib2.URLError, e: Print "Error Reason:", e. reason Def use_proxy (): Enable_proxy = False Proxy_handler = urllib2.ProxyHandler ({"http": "http://proxyurlXXXX.com: 8080 "}) Null_proxy_handler = urllib2.ProxyHandler ({}) If enable_proxy:

Summary of the usage details of the Python standard library urllib2, pythonurllib2 There are many practical tool classes in the Python standard library, but the detailed description of the use is not clear in the standard library documentation, such as the HTTP client library urllib2. Here we summarize the Usage Details of urllib2. 1. Proxy Settings2. Timeout settings3. Add a specific Header to the HTTP Request4. Redirect5. Cookie6. Use the PUT and DELETE methods of HTTP7. Get the HTTP return co

Turn from: http://www.cnblogs.com/kennyhr/p/4018668.html (infringement can contact me to delete)All along the technical group will have new students to ask questions about Urllib and URLLIB2 and cookielib related issues. So I'm going to summarize here and avoid wasting resources by answering the same questions over and over again.This is a tutorial class text, if you already know urllib2 and cookielib so please ignore this article.First, start with a piece of code,#CookiesImportUrllib2Import Coo

Using IP proxiesProxyhandler () format IP, first parameter, request target may be HTTP or HTTPS, corresponding settingBuild_opener () Initialize IPInstall_opener () Sets the proxy IP to global and automatically uses proxy IP when Urlopen () requests are used#!/usr/bin/env python#-*-coding:utf-8-*-import urllibimport urllib.requestimport random #引入随机模块文件ip = " 180.115.8.212:39109 "proxy = Urllib.request.ProxyHandler ({" https ": IP}) #格式化IP, note: The first parameter may

crawl the corresponding Web page. Extracts the links contained in the Web page according to the regular expression in 2. Filter out duplicate links. Subsequent operations. such as printing these links to the screen wait."'author = ' My ' import re#爬取所有页面链接import urllib.requestdef getlinks(url): headers=(‘User-Agent‘,‘Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36‘) #模拟成浏览器

':'http://XX.XX.XX.XX:XXXX'})opener = urllib2.build_opener(proxy_support, urllib2.HTTPHandler)urllib2.install_opener(opener)content = urllib2.urlopen('http://XXXX').read() 3. logon required I have trouble splitting the problem: 3.1 cookie Processing import urllib2, cookielibcookie_support= urllib2.HTTPCookieProcessor(cookielib.CookieJar())opener = urllib2.build_o

and urllib2 mixed.1) Urllib2.urlopen ()This is also in the urllib, the only thing is to add a timeout parameterA.urlB.dataC.timeout: Timeout time, such as I set a timeout time of 3 seconds, then I can not connect to the remote server in 3 seconds, it will directly error3) Error Handling Httperror,etwo important concepts in URLLIB2: openers and handlers 1.Openers:When you get a URL you use a opener (a urllib2. Openerdirector instances).Under normal

) return strlist [0] def getOpener (head): # cookie processing cj = http. cookiejar. cookieJar () pro = urllib. request. HTTPCookieProcessor (cj) opener = urllib. request. build_opener (pro) header = [] for key, value in head. items (): elem = (key, value) header. append (elem) opener. addheaders = header return opener # header information can be obtained through

Python crawlers use cookies to simulate login instances. Cookie refers to the data (usually encrypted) stored on the user's local terminal by some websites to identify users and track sessions ). For example, some websites need to log on to the website to obtain the information you want. If you do not log on to the website, you can use the Urllib2 library to save the previously logged-on cookies, load the cookie to get the desired page and then capture it. Understanding cookies is mainly used to

Basic usage of the python urllib2 package1. urllib2.urlopen (request) Url = "http://www.baidu.com" # url can also be the path of other protocols, such as ftpvalues = {'name': 'Michael Foord ', 'location': 'northampt', language ': 'python'} data = urllib. urlencode (values) user_agent = 'mozilla/4.0 (compatible; MSIE 5.5; Windows NT) 'headers = {'user-agent': user_agent} request = urllib2.Request (url, data, headers) # You can also set the header: request. add_header ('user-agent', 'fake-client')

Why use cookies?Cookies, which are data stored on the user's local terminal (usually encrypted) by certain websites in order to identify users and perform session tracking.For example, some sites need to log in to access a page, before you log in, you want to crawl a page content is not allowed. Then we can use the URLLIB2 library to save our registered cookies, and then crawl the other pages to achieve the goal.Before we do, we must first introduce the concept of a

B.php's Code Copy CodeThe code is as follows: can only be accessed via post if ($_server[' request_method '] = = ' GET ') {header (' http/1.1 404 Not Found '); Die (' Pro, page not present ');} Session_Start (); $fs 1=$_post[' a ']; $fs 2=$_post[' B ']; Anti-refresh time in seconds $allowTime = 30; Read the guest IP so that it can be refreshed for IP throttling /* Get real IP start */ if (! function_exists (' GetIP ')) { function GetIP () { static $IP = NULL; if ($ip!== NULL) { return $IP; } i

How PHP obtains client IP PHP Get client IP, simple and practical function Getonlineip () { $cip = getenv (' http_client_ip '); $XIP = getenv (' http_x_forwarded_for '); $rip = getenv (' remote_addr '); $srip = $_server [' REMOTE_ADDR ']; if ($cip strcasecmp ($cip, ' unknown ')) { $onlineip = $cip; } elseif ($xip strcasecmp ($XIP, ' unknown ')) { $onlineip = $