76 lines
2.4 KiB
Python
76 lines
2.4 KiB
Python
import http.cookiejar
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import json
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import requests
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from bs4 import BeautifulSoup
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from flask import Flask, Response
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from diskcache import Cache
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app = Flask(__name__)
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CACHE_EXPIRATION_SECONDS = 3600 # 1 hour
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CACHE_SIZE_LIMIT = 100 * 1024 * 1024 # 100 MB
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cache = Cache("disk_cache", size_limit=CACHE_SIZE_LIMIT)
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cookie_jar = http.cookiejar.MozillaCookieJar('cookies.txt')
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try:
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cookie_jar.load(ignore_discard=True, ignore_expires=True)
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except FileNotFoundError:
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print("cookies.txt not found, starting with empty cookie jar")
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s = requests.Session()
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s.headers.update({
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"User-Agent": "Twitterbot/1.0"
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})
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s.cookies = cookie_jar # type: ignore
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@app.route("/watch/<video_id>")
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def proxy(video_id):
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cached_html = cache.get(video_id)
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if cached_html is not None:
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return Response(cached_html, mimetype="text/html") # type: ignore
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# Not in cache or cache expired; fetch from nicovideo.jp
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real_url = f"https://www.nicovideo.jp/watch/{video_id}"
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try:
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r = s.get(real_url, timeout=10)
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except requests.RequestException as e:
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return Response(f"Error fetching the page: {e}", status=500)
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soup = BeautifulSoup(r.text, "html.parser")
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thumbnail_url = None
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try:
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server_response = soup.find("meta", {"name": "server-response"})
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if server_response:
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params = json.loads(server_response["content"])["data"]["response"] # type: ignore
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thumbnail_url = (
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params["video"]["thumbnail"].get("ogp") or
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params["video"]["thumbnail"].get("player") or
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params["video"]["thumbnail"].get("largeUrl") or
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params["video"]["thumbnail"].get("middleUrl") or
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params["video"]["thumbnail"].get("url")
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)
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except (KeyError, json.JSONDecodeError):
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pass
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og_tags = soup.find_all("meta", property=lambda x: x) # type: ignore
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for tag in og_tags:
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if tag.get("property") == "og:image" and thumbnail_url:
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tag["content"] = thumbnail_url
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og_tags_str = "\n".join(str(tag) for tag in og_tags)
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html_response = f"""
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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{og_tags_str}
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</head>
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<body>
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</body>
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</html>
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"""
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cache.set(video_id, html_response, expire=CACHE_EXPIRATION_SECONDS)
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return Response(html_response, mimetype="text/html")
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