110 lines
3.5 KiB
Python
Executable File
110 lines
3.5 KiB
Python
Executable File
import html
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import urllib.parse
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import os
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import requests
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import redis
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import xml.etree.ElementTree as ET
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import re
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import unicodedata
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from flask import request, Response
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PROXY_URL = os.getenv("PROXY_URL")
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REDIS_URL = os.getenv("REDIS_URL", "redis://localhost:6379/0")
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CACHE_TTL = int(os.getenv("CACHE_TTL", 3600))
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rdb = redis.from_url(REDIS_URL)
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_head_html = f"""<?xml version="1.0" encoding="UTF-8"?>
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<rss version="2.0">
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<channel><title>Tapochek.net RSS</title>
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<link>http://tapochek.net/</link>
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<ttl>15</ttl>"""
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def normalize_text(text):
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"""Приводит текст к нормальному виду, устраняя странные символы."""
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if text:
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return unicodedata.normalize("NFKC", text)
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return text
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def extract_viewtopic_link(description):
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decoded_description = html.unescape(description)
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match = re.search(r'href="(https?://[^"]+)"', decoded_description)
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return match.group(1) if match else None
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def normalize_xml_texts(elem):
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"""Применяет normalize_text ко всем текстовым узлам XML."""
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if elem.text:
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elem.text = normalize_text(elem.text)
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if elem.tail:
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elem.tail = normalize_text(elem.tail)
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for child in elem:
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normalize_xml_texts(child)
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def init_proxy(app):
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@app.route("/proxy")
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def proxy():
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"""Proxy RSS feed with per-item caching and GUID replacement."""
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raw_query = request.query_string.decode()
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if raw_query.startswith("url="):
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url = urllib.parse.unquote(raw_query[4:])
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url = html.unescape(url)
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else:
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return "Missing URL", 400
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try:
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proxies = {"http": PROXY_URL, "https": PROXY_URL} if PROXY_URL else None
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r = requests.get(url, timeout=10, proxies=proxies)
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xml_data = r.text
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xml_data = xml_data.replace("&", "&")
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_encoding = xml_data.split('encoding="')[1].split('"')[0]
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if '<?xml version="1.0" encoding="' in xml_data:
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xml_data = xml_data.replace(
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f'<?xml version="1.0" encoding="{_encoding}"?>',
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'<?xml version="1.0" encoding="UTF-8"?>'
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)
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if '<?xml version="1.0" encoding="UTF-8"?>' not in xml_data:
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xml_data = f'<?xml version="1.0" encoding="UTF-8"?>{xml_data}'
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root = ET.fromstring(xml_data)
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items = root.findall(".//item")
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cached_items = []
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new_items = []
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for item in items:
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guid = item.find("guid")
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if guid is None or not guid.text:
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continue
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cache_key = f"rss:item:{guid.text}"
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cached_item = rdb.get(cache_key)
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title = item.find("title")
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new_title = re.sub(r'&#\d+', '', title.text)
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title.text = new_title
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if cached_item:
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cached_items.append(cached_item.decode())
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else:
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normalize_xml_texts(item)
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item_str = ET.tostring(item, encoding="unicode")
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item_str = html.unescape(item_str)
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rdb.setex(cache_key, CACHE_TTL, item_str)
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new_items.append(item_str)
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final_items = cached_items + new_items
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response_xml = f"""{_head_html}{"".join(final_items)}</channel></rss>"""
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return Response(response_xml, content_type="application/xml; charset=utf-8")
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except Exception as e:
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return f"Error: {e}", 500
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