272 lines
9.8 KiB
Python
272 lines
9.8 KiB
Python
#!/usr/bin/env python3
|
||
# -*- coding: utf-8 -*-
|
||
# Copyright (C) 2026 tmwgsicp
|
||
# Licensed under the GNU Affero General Public License v3.0
|
||
# See LICENSE file in the project root for full license text.
|
||
# SPDX-License-Identifier: AGPL-3.0-only
|
||
"""
|
||
RSS 后台轮询器
|
||
定时通过公众号后台 API 拉取订阅号的最新文章列表并缓存到 SQLite。
|
||
仅获取标题、摘要、封面等元数据，不访问文章页面，零风控风险。
|
||
"""
|
||
|
||
import asyncio
|
||
import json
|
||
import logging
|
||
import os
|
||
from typing import List, Dict, Optional
|
||
|
||
import httpx
|
||
|
||
from utils.auth_manager import auth_manager
|
||
from utils import rss_store
|
||
from utils.helpers import extract_article_info, parse_article_url, is_image_text_message, has_article_content, is_article_unavailable, get_unavailable_reason
|
||
from utils.http_client import fetch_page
|
||
|
||
logger = logging.getLogger(__name__)
|
||
|
||
POLL_INTERVAL = int(os.getenv("RSS_POLL_INTERVAL", "3600"))
|
||
ARTICLES_PER_POLL = int(os.getenv("ARTICLES_PER_POLL", "10"))
|
||
FETCH_FULL_CONTENT = os.getenv("RSS_FETCH_FULL_CONTENT", "true").lower() == "true"
|
||
|
||
|
||
class RSSPoller:
|
||
"""后台轮询单例"""
|
||
|
||
_instance = None
|
||
_task: Optional[asyncio.Task] = None
|
||
_running = False
|
||
|
||
def __new__(cls):
|
||
if cls._instance is None:
|
||
cls._instance = super().__new__(cls)
|
||
return cls._instance
|
||
|
||
async def start(self):
|
||
if self._running:
|
||
return
|
||
self._running = True
|
||
self._task = asyncio.create_task(self._loop())
|
||
logger.info("RSS poller started (interval=%ds)", POLL_INTERVAL)
|
||
|
||
async def stop(self):
|
||
self._running = False
|
||
if self._task:
|
||
self._task.cancel()
|
||
try:
|
||
await self._task
|
||
except asyncio.CancelledError:
|
||
pass
|
||
logger.info("RSS poller stopped")
|
||
|
||
@property
|
||
def is_running(self) -> bool:
|
||
return self._running
|
||
|
||
async def _loop(self):
|
||
while self._running:
|
||
try:
|
||
await self._poll_all()
|
||
except Exception as e:
|
||
logger.error("RSS poll cycle error: %s", e, exc_info=True)
|
||
await asyncio.sleep(POLL_INTERVAL)
|
||
|
||
async def _poll_all(self):
|
||
fakeids = rss_store.get_all_fakeids()
|
||
if not fakeids:
|
||
return
|
||
|
||
creds = auth_manager.get_credentials()
|
||
if not creds or not creds.get("token") or not creds.get("cookie"):
|
||
logger.warning("RSS poll skipped: not logged in")
|
||
return
|
||
|
||
logger.info("RSS poll: checking %d subscriptions", len(fakeids))
|
||
|
||
for fakeid in fakeids:
|
||
try:
|
||
articles = await self._fetch_article_list(fakeid, creds)
|
||
if articles and FETCH_FULL_CONTENT:
|
||
# 获取完整文章内容
|
||
articles = await self._enrich_articles_content(articles)
|
||
|
||
if articles:
|
||
new_count = rss_store.save_articles(fakeid, articles)
|
||
if new_count > 0:
|
||
logger.info("RSS: %d new articles for %s", new_count, fakeid[:8])
|
||
rss_store.update_last_poll(fakeid)
|
||
except Exception as e:
|
||
logger.error("RSS poll error for %s: %s", fakeid[:8], e)
|
||
await asyncio.sleep(3)
|
||
|
||
async def _fetch_article_list(self, fakeid: str, creds: Dict) -> List[Dict]:
|
||
params = {
|
||
"sub": "list",
|
||
"search_field": "null",
|
||
"begin": 0,
|
||
"count": ARTICLES_PER_POLL,
|
||
"query": "",
|
||
"fakeid": fakeid,
|
||
"type": "101_1",
|
||
"free_publish_type": 1,
|
||
"sub_action": "list_ex",
|
||
"token": creds["token"],
|
||
"lang": "zh_CN",
|
||
"f": "json",
|
||
"ajax": 1,
|
||
}
|
||
headers = {
|
||
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36",
|
||
"Referer": "https://mp.weixin.qq.com/",
|
||
"Cookie": creds["cookie"],
|
||
}
|
||
|
||
async with httpx.AsyncClient(timeout=30.0) as client:
|
||
resp = await client.get(
|
||
"https://mp.weixin.qq.com/cgi-bin/appmsgpublish",
|
||
params=params,
|
||
headers=headers,
|
||
)
|
||
resp.raise_for_status()
|
||
result = resp.json()
|
||
|
||
base_resp = result.get("base_resp", {})
|
||
if base_resp.get("ret") != 0:
|
||
logger.warning("WeChat API error for %s: ret=%s",
|
||
fakeid[:8], base_resp.get("ret"))
|
||
return []
|
||
|
||
publish_page = result.get("publish_page", {})
|
||
if isinstance(publish_page, str):
|
||
try:
|
||
publish_page = json.loads(publish_page)
|
||
except (json.JSONDecodeError, ValueError):
|
||
return []
|
||
|
||
if not isinstance(publish_page, dict):
|
||
return []
|
||
|
||
articles = []
|
||
for item in publish_page.get("publish_list", []):
|
||
publish_info = item.get("publish_info", {})
|
||
if isinstance(publish_info, str):
|
||
try:
|
||
publish_info = json.loads(publish_info)
|
||
except (json.JSONDecodeError, ValueError):
|
||
continue
|
||
if not isinstance(publish_info, dict):
|
||
continue
|
||
for a in publish_info.get("appmsgex", []):
|
||
articles.append({
|
||
"aid": a.get("aid", ""),
|
||
"title": a.get("title", ""),
|
||
"link": a.get("link", ""),
|
||
"digest": a.get("digest", ""),
|
||
"cover": a.get("cover", ""),
|
||
"author": a.get("author", ""),
|
||
"publish_time": a.get("update_time", 0),
|
||
})
|
||
return articles
|
||
|
||
async def poll_now(self):
|
||
"""手动触发一次轮询"""
|
||
await self._poll_all()
|
||
|
||
async def _enrich_articles_content(self, articles: List[Dict]) -> List[Dict]:
|
||
"""
|
||
批量获取文章完整内容（并发版）
|
||
|
||
限制：最多获取 20 篇文章的完整内容（避免大量文章导致轮询过久）
|
||
|
||
Args:
|
||
articles: 文章列表（包含基本信息）
|
||
|
||
Returns:
|
||
enriched_articles: 包含完整内容的文章列表
|
||
"""
|
||
from utils.article_fetcher import fetch_articles_batch
|
||
from utils.content_processor import process_article_content
|
||
|
||
# 提取所有文章链接
|
||
article_links = [a.get("link", "") for a in articles if a.get("link")]
|
||
|
||
if not article_links:
|
||
return articles
|
||
|
||
# 限制最多获取 20 篇（5个批次可能返回100+篇）
|
||
max_fetch = 20
|
||
if len(article_links) > max_fetch:
|
||
logger.info("文章数 %d 篇超过限制，仅获取最近 %d 篇的完整内容",
|
||
len(article_links), max_fetch)
|
||
article_links = article_links[:max_fetch]
|
||
articles = articles[:max_fetch]
|
||
|
||
logger.info("开始批量获取 %d 篇文章的完整内容", len(article_links))
|
||
|
||
# 获取微信凭证（从环境变量读取）
|
||
wechat_token = os.getenv("WECHAT_TOKEN", "")
|
||
wechat_cookie = os.getenv("WECHAT_COOKIE", "")
|
||
|
||
results = await fetch_articles_batch(
|
||
article_links,
|
||
max_concurrency=3,
|
||
timeout=60,
|
||
wechat_token=wechat_token,
|
||
wechat_cookie=wechat_cookie
|
||
)
|
||
|
||
# 处理结果并合并到原文章数据
|
||
enriched = []
|
||
for article in articles:
|
||
link = article.get("link", "")
|
||
if not link:
|
||
enriched.append(article)
|
||
continue
|
||
|
||
html = results.get(link)
|
||
if not html:
|
||
logger.warning("Empty HTML: %s", link[:80])
|
||
enriched.append(article)
|
||
continue
|
||
if is_article_unavailable(html):
|
||
reason = get_unavailable_reason(html) or "unknown"
|
||
logger.warning("Article permanently unavailable (%s): %s", reason, link[:80])
|
||
article["content"] = f"<p>[unavailable] {reason}</p>"
|
||
article["plain_content"] = f"[unavailable] {reason}"
|
||
enriched.append(article)
|
||
continue
|
||
if not has_article_content(html):
|
||
logger.warning("No content in HTML: %s", link[:80])
|
||
enriched.append(article)
|
||
continue
|
||
|
||
try:
|
||
# 使用 content_processor 处理文章内容（完美保持图文顺序）
|
||
# 从环境变量读取网站URL,入库时代理图片(与SaaS版策略一致)
|
||
site_url = os.getenv("SITE_URL", "http://localhost:5000").rstrip("/")
|
||
result = process_article_content(html, proxy_base_url=site_url)
|
||
|
||
# 合并到原文章数据
|
||
article["content"] = result.get("content", "")
|
||
article["plain_content"] = result.get("plain_content", "")
|
||
|
||
# 如果原始数据没有作者，从 HTML 中提取
|
||
if not article.get("author"):
|
||
from utils.helpers import extract_article_info, parse_article_url
|
||
article_info = extract_article_info(html, parse_article_url(link))
|
||
article["author"] = article_info.get("author", "")
|
||
|
||
logger.info("Content fetched: %s... (%d chars, %d images)",
|
||
link[:50],
|
||
len(article["content"]),
|
||
len(result.get("images", [])))
|
||
except Exception as e:
|
||
logger.error("Failed to process content for %s: %s", link[:80], str(e))
|
||
|
||
enriched.append(article)
|
||
|
||
return enriched
|
||
|
||
|
||
rss_poller = RSSPoller()
|