BeautifulSoup實現博文簡介與過濾惡意標籤（xxs攻擊）

1、BeautifulSoup模塊

2、博文簡介

3、過濾惡意標籤

 

 

1、BeautifulSoup模塊

pip install bs4  # 安裝bs4

 

from bs4 import BeautifulSoup  # 導入BeautifulSoup

 

2、博文簡介

from bs4 import BeautifulSoup

 

content = '<a href="http://example.com/">I linked to <i>example.com</i></a>'

soup = BeautifulSoup(content, 'html.parser')

overview = soup.text[0:9]

print(overview)

 

3、過濾惡意標籤

from bs4 import BeautifulSoup

 

content = '<a href="http://example.com/">I linked to <i>example.com</i></a><div><img src=""></img>image</div><a>link</a><script>alert(123)</script>'

soup = BeautifulSoup(content, 'html.parser')

print(soup)  # 這裏帶有script標籤的腳本

 

for tag in soup.find_all():

    if tag.name in ['script', 'link']:

        tag.decompose()

 

print(soup)  # 這裏已經把帶有script標籤的腳本去掉了