Proxy server IP capture method

When you are doing web crawling, data collection or other network technology applications, you often need to use proxy server IP to hide your real IP address, or to get the data of the target website in different geographic locations. And how to extract proxy IP from website source code is a relatively common need. Next we will introduce some common methods to achieve this goal.

First, we can use Python's requests library to get the source code of a web page, and then use regular expressions to match the IP addresses in it. Here is a simple example code:

"`ipipgothon
import re
import requests

url = 'https://www.example.com'
response = requests.get(url)
html = response.text

pattern = re.compile(r'd+.d+.d+.d+:d+')
proxy_list = pattern.findall(html)

for proxy in proxy_list:
print(proxy)
“`

The above code first uses the requests library to get the source code of a sample website, and then uses regular expressions to match the IP addresses and ports, and prints out the results. Of course, in practice, you may use more complex regular expressions to match more IP address formats.

Extract proxy IP from website source code

In addition to using regular expressions, proxy IP extraction can also be achieved with the help of some third-party libraries. For example, Beautiful Soup is a Python library that can help us handle web page source code more easily. Here is a simple example of extracting proxy IP using Beautiful Soup:

"`ipipgothon
from bs4 import BeautifulSoup
import requests

url = 'https://www.example.com'
response = requests.get(url)
html = response.text

soup = BeautifulSoup(html, 'html.parser')
proxy_list = []
for tag in soup.find_all('div', class_='proxy')::
proxy = tag.get_text()
proxy_list.append(proxy)

for proxy in proxy_list:
print(proxy)
“`

In the above code, we first used Beautiful Soup to parse the web page source code, and then extracted information about the proxy IP through a selector. This allows more flexibility in locating the desired content and avoids complex regular expressions.

Overall, there are various ways to extract proxy IPs from website source code, and you can choose the appropriate implementation according to your specific needs and webpage structure. Whether you use regular expressions or third-party libraries, they can help us get the proxy IP address we need quickly and efficiently.