mirror of
https://github.com/VinciGit00/Scrapegraph-ai.git
synced 2026-07-04 21:00:36 +08:00
135 lines
4.3 KiB
Python
135 lines
4.3 KiB
Python
"""
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Module for minimizing the code
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"""
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from urllib.parse import urljoin
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import re
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from bs4 import BeautifulSoup, Comment
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from minify_html import minify
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def cleanup_html(html_content: str, base_url: str) -> str:
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"""
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Processes HTML content by removing unnecessary tags,
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minifying the HTML, and extracting the title and body content.
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Args:
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html_content (str): The HTML content to be processed.
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Returns:
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str: A string combining the parsed title and the minified body content.
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If no body content is found, it indicates so.
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Example:
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>>> html_content = "<html><head><title>Example</title></head><body><p>Hello World!</p></body></html>"
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>>> remover(html_content)
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'Title: Example, Body: <body><p>Hello World!</p></body>'
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This function is particularly useful for preparing HTML content for
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environments where bandwidth usage needs to be minimized.
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"""
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soup = BeautifulSoup(html_content, 'html.parser')
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title_tag = soup.find('title')
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title = title_tag.get_text() if title_tag else ""
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for tag in soup.find_all(['script', 'style']):
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tag.extract()
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link_urls = [urljoin(base_url, link['href']) for link in soup.find_all('a', href=True)]
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images = soup.find_all('img')
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image_urls = []
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for image in images:
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if 'src' in image.attrs:
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if 'http' not in image['src']:
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image_urls.append(urljoin(base_url, image['src']))
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else:
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image_urls.append(image['src'])
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body_content = soup.find('body')
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if body_content:
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minimized_body = minify(str(body_content))
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return title, minimized_body, link_urls, image_urls
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else:
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raise ValueError(f"""No HTML body content found, please try setting the 'headless'
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flag to False in the graph configuration. HTML content: {html_content}""")
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def minify_html(html):
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# Remove comments
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html = re.sub(r'<!--.*?-->', '', html, flags=re.DOTALL)
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# Remove whitespace between tags
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html = re.sub(r'>\s+<', '><', html)
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# Remove whitespace at the beginning and end of tags
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html = re.sub(r'\s+>', '>', html)
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html = re.sub(r'<\s+', '<', html)
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# Collapse multiple whitespace characters into a single space
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html = re.sub(r'\s+', ' ', html)
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# Remove spaces around equals signs in attributes
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html = re.sub(r'\s*=\s*', '=', html)
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return html.strip()
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def reduce_html(html, reduction):
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"""
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Reduces the size of the HTML content based on the specified level of reduction.
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Args:
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html (str): The HTML content to reduce.
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reduction (int): The level of reduction to apply to the HTML content.
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0: minification only,
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1: minification and removig unnecessary tags and attributes,
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2: minification, removig unnecessary tags and attributes, simplifying text content, removing of the head tag
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Returns:
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str: The reduced HTML content based on the specified reduction level.
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"""
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if reduction == 0:
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return minify_html(html)
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soup = BeautifulSoup(html, 'html.parser')
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# Remove comments
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for comment in soup.find_all(string=lambda text: isinstance(text, Comment)):
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comment.extract()
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# Remove script and style tag contents, but keep the tags
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for tag in soup(['script', 'style']):
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tag.string = ""
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# Remove unnecessary attributes, but keep class and id
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attrs_to_keep = ['class', 'id', 'href', 'src']
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for tag in soup.find_all(True):
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for attr in list(tag.attrs):
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if attr not in attrs_to_keep:
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del tag[attr]
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if reduction == 1:
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return minify_html(str(soup))
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# Remove script and style tags completely
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for tag in soup(['script', 'style']):
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tag.decompose()
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# Focus only on the body
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body = soup.body
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if not body:
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return "No <body> tag found in the HTML"
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# Simplify text content
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for tag in body.find_all(string=True):
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if tag.parent.name not in ['script', 'style']:
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tag.replace_with(re.sub(r'\s+', ' ', tag.strip())[:20])
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# Generate reduced HTML
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reduced_html = str(body)
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# Apply minification
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reduced_html = minify_html(reduced_html)
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return reduced_html |