main
Brett 2025-06-25 21:51:56 -04:00
parent 8838df750b
commit 6425845091
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from __future__ import annotations
import asyncio
import logging
import os
from typing import Final, Optional, List
import discord
from dotenv import load_dotenv
import re
from pool import PlaywrightPool
import trafilatura
import io
from playwright.async_api import async_playwright, Browser, BrowserContext, Page
load_dotenv()
DISCORD_TOKEN: Final[str] = os.getenv("DISCORD_TOKEN")
ROLE_NAME = "Newsulizer"
intents = discord.Intents.default()
intents.message_content = True
bot = discord.Client(intents=intents)
LOGGER = logging.getLogger("Newsulizer")
logging.basicConfig(
level=logging.INFO,
format="%(asctime)s [%(levelname)s] %(name)s: %(message)s",
)
async def send_text_file(channel: discord.abc.Messageable, content: str, filename: str = "article.md") -> None:
fp = io.BytesIO(content.encode("utf-8"))
file = discord.File(fp, filename=filename)
await channel.send("📄 Full article attached:", file=file)
async def handle_article_url(message: discord.Message, url: str) -> None:
"""
Placeholder: download + analyse the article here.
Currently just acknowledges receipt so you can verify the event flow.
"""
LOGGER.info("Received URL from %s: %s", message.author, url)
try:
html = await PlaywrightPool.fetch_html(url)
# TODO: parse `html`, summarise, etc.
await message.channel.send(f"✅ Article downloaded {len(html):,} bytes.")
await send_text_file(message.channel, trafilatura.extract(html, output_format='markdown', include_images=True, include_formatting=True, include_comments=False, favor_recall=True))
except:
LOGGER.exception("Playwright failed")
await message.channel.send("❌ Sorry, I couldn't fetch that page.")
def extract_first_url(text: str) -> Optional[str]:
"""Return the first http(s)://… substring found in *text*, or None."""
match = re.search(r"https?://\S+", text)
return match.group(0) if match else None
@bot.event
async def on_ready() -> None:
LOGGER.info("Logged in as %s (id=%s)", bot.user, bot.user.id)
await PlaywrightPool.start()
LOGGER.info("Playwright pool ready")
LOGGER.info("------")
@bot.event
async def on_message(message: discord.Message) -> None:
# Ignore our own messages
if message.author == bot.user:
return
is_dm = message.guild is None
overwrite = False
if not is_dm:
role = discord.utils.get(message.guild.roles, name=ROLE_NAME)
if role is None:
# The role doesn't even exist in this server
await message.channel.send(f"Warning! Role **{ROLE_NAME}** not found in this server.")
return
overwrite = role in message.channel.overwrites
# Either a DM or a channel message that mentions the bot
is_mention = (bot.user in message.mentions if message.guild else False) or overwrite
if not (is_dm or is_mention):
return
url = extract_first_url(message.content)
if not url:
await message.channel.send("Please send me a link to a news article.")
return
await message.channel.send(f"🔗 Thanks, <@{message.author.id}>! Ive queued that article for analysis.")
# Launch the processing task without blocking Discords event loop
asyncio.create_task(handle_article_url(message, url))
def main() -> None:
if DISCORD_TOKEN is None:
raise RuntimeError("Set the DISCORD_TOKEN environment variable or add it to a .env file.")
try:
bot.run(DISCORD_TOKEN)
finally:
asyncio.run(PlaywrightPool.stop())
if __name__ == "__main__":
main()

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news/pool.py Normal file
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from playwright.async_api import async_playwright, Browser, BrowserContext, Page
from typing import Final, Optional
import asyncio
class PlaywrightPool:
_pw = None # playwright instance
_browser: Optional[Browser] = None
_ctx: Optional[BrowserContext] = None
_sema: asyncio.Semaphore # limit parallel pages
@classmethod
async def start(cls, max_concurrency: int = 4) -> None:
if cls._pw is not None:
return
cls._pw = await async_playwright().start()
cls._browser = await cls._pw.chromium.launch(
headless=True,
args=["--disable-blink-features=AutomationControlled"],
)
cls._ctx = await cls._browser.new_context(
user_agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36",
viewport={"width": 1280, "height": 800},
)
cls._sema = asyncio.Semaphore(max_concurrency)
@classmethod
async def new_context(cls) -> None:
if cls._ctx:
await cls._ctx.close()
cls._ctx = await cls._browser.new_context(
user_agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36",
viewport={"width": 1280, "height": 800},
)
@classmethod
async def stop(cls) -> None:
if cls._ctx:
await cls._ctx.close()
if cls._browser:
await cls._browser.close()
if cls._pw:
await cls._pw.stop()
@classmethod
async def fetch_html(cls, url: str) -> str:
if cls._browser is None:
await cls.start()
async with cls._sema: # throttle concurrency
page: Page = await cls._ctx.new_page()
try:
await page.goto(url, wait_until="load", timeout=60_000)
html = await page.content()
return html
finally:
await page.close()

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news/test.py Normal file
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from pool import PlaywrightPool
import asyncio
import trafilatura
article = "https://financialpost.com/news/economy/ontario-and-quebec-economies-to-be-hardest-hit-this-year-by-trade-war-deloitte"
async def main() -> None:
await PlaywrightPool.start()
html = await PlaywrightPool.fetch_html(article)
print(trafilatura.extract(html))
await PlaywrightPool.stop()
asyncio.run(main())