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通过 CLI 列出网页资产

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通过 CLI 列出网页资产

当您使用浏览器浏览网页时，下载页面代码后，浏览器会下载所有资源（CSS、JS 和图像）。

有没有办法列出页面资产（内部和外部资产）的所有 URL？

这个想法是监控外部和内部资产的变化。

答案1

我写了一个Python脚本，它可能会做你想做的事：

#!/usr/bin/env python2
# -*- coding: ascii -*-
"""list_assets.py"""

from bs4 import BeautifulSoup
import urllib
import sys
import jsbeautifier
import copy

# Define a function to format script and style elements
def formatted_element(element):

    # Copy the element
    formatted_element = copy.copy(element)

    # Get beautified element text
    formatted_text = jsbeautifier.beautify(formatted_element.text)

    # Indent all of the text
    formatted_text = "\n".join(["    " + line for line in formatted_text.splitlines()])

    # Update the script body
    formatted_element.string = "\n" + formatted_text + "\n    "

    # Return the beautified element
    return(formatted_element)

# Load HTML from a web page
html = urllib.urlopen(sys.argv[1]).read()

# Parse the HTML
soup = BeautifulSoup(html, "html.parser")

# Extract the list of external image URLs
image_urls = [image['src'] for image in soup.findAll('img') if image.has_attr('src')]

# Extract the list of external CSS URLs
css_urls = [link['href'] for link in soup.findAll('link') if link.has_attr('href')]

# Extract the list of external JavaScript URLs
script_urls = [script['src'] for script in soup.findAll('script') if script.has_attr('src')]

# Extract the list of internal CSS elements
styles = [formatted_element(style) for style in soup.findAll('style')]

# Extract the list of internal scripts
scripts = [formatted_element(script) for script in soup.findAll('script') if not script.has_attr('src')]


# Print the results

print("Images:\n")
for image_url in image_urls:
    print("    %s\n" % image_url)
print("")

print("External Style-Sheets:\n")
for css_url in css_urls:
    print("    %s\n" % css_url)
print("")

print("External Scripts:\n")
for script_url in script_urls:
    print("    %s\n" % script_url)
print("")

print("Internal Style-Sheets:\n")
for style in styles:
    print("    %s\n" % style)
print("")

print("Internal Scripts:\n")
for script in scripts:
    print("    %s\n" % script)

这些是我使用的（值得注意的）软件包：

该脚本打印外部资源的 URL 和内部资源的元素标签本身（经过美化/美化）。我就如何格式化结果做出了一些即兴的风格选择，这些结果可以很容易地修改或改进。

要查看其实际效果，请参阅以下 HTML 文件示例 ( assets.html)：

<!doctype html>
<html lang=en>

<head>

    <meta charset=utf-8>

    <title>assets.html</title>

    <link rel="stylesheet" type="text/css" href="mystyle.css">

    <style>
    body {
            background-color: linen;
    }

    h1 {
            color: maroon;
                    margin-left: 40px;
    } 
    </style>

    <script src="myscripts.js"></script>

</head>

<body>

    <script>alert( 'Hello, world!' );</script>

    <img src="https://www.python.org/static/community_logos/python-logo.png">

    <p>I'm the content</p>

</body>

</html>

以下是我们执行脚本的方式（在本地文件上）：

python list_assets.py assets.html

这是输出：

Images:

    https://www.python.org/static/community_logos/python-logo.png


External Style-Sheets:

    mystyle.css


External Scripts:

    myscripts.js


Internal Style-Sheets:

    <style>
    body {
        background - color: linen;
    }

    h1 {
        color: maroon;
        margin - left: 40 px;
    }
    </style>


Internal Scripts:

    <script>
    alert('Hello, world!');
    </script>

最后，这里有一些我用作参考的帖子，您可能会发现它们有用：

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