如何从http://www.cda.pl/video/videoId中解析URL内容并获取视频URL

import requests
from bs4 import BeautifulSoup
import re

def parse_video_url(url):
    # 发送HTTP请求，获取网页内容
    response = requests.get(url)
    html_content = response.text

    # 解析HTML内容，提取视频URL
    soup = BeautifulSoup(html_content, 'html.parser')
    video_url = None

    # 根据网页结构和视频URL的特征，使用正则表达式或特定的解析方法提取视频URL
    # 这里以cda.pl网站为例，视频URL通常包含在形如"file: 'https://..."的JavaScript代码中
    pattern = re.compile(r"file:\s*'([^']+)'")
    scripts = soup.find_all('script')
    for script in scripts:
        match = pattern.search(script.string)
        if match:
            video_url = match.group(1)
            break

    return video_url

# 测试代码
url = "http://www.cda.pl/video/videoId"
video_url = parse_video_url(url)
print("视频URL:", video_url)