feat: real extraction engine — pluggable parsers + 11 builtin platforms
- Add parser_config TEXT field to hotspot_source (JSON: parser/item_path/field_map/builtin_name) - Pluggable extractors: json_path, css, regex, rss, builtin - 11 builtin platform parsers with real API endpoints: weibo_hot zhihu_hot baidu_hot toutiao_hot bilibili_hot douyin_hot 36kr_hot github_trending hackernews v2ex_hot rsshub - Each source reads its own parser_config — different sources can use different extraction rules even if same type - Updated index.ui with builtin parser reference
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@ -27,6 +27,7 @@ CREATE TABLE hotspot_source
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-- 通用
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`proxy_enabled` VARCHAR(1) DEFAULT '0' comment '启用代理',
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`proxy_url` VARCHAR(500) comment '代理地址',
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`parser_config` TEXT comment '提取规则 JSON: parser/item_path/field_map/builtin_name',
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`enabled` VARCHAR(1) DEFAULT '1' comment '是否启用',
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`priority` INT DEFAULT 0 comment '优先级(越大越高)',
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`last_fetch` VARCHAR(50) comment '上次抓取时间',
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@ -7,7 +7,7 @@
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"params": {
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"sortby": "priority asc",
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"browserfields": {
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"exclouded": ["id", "api_secret", "headers", "request_body", "crawler_rules"],
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"exclouded": ["id", "api_secret", "headers", "request_body", "crawler_rules", "parser_config"],
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"cwidth": {"name": 150, "url": 300}
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},
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"editexclouded": ["id", "created_at", "last_fetch"],
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@ -1,5 +1,17 @@
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# 抓取引擎 — 支持 API / Browser / Crawler 三种模式
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import json, time, hashlib
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"""
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抓取引擎 — 可配置提取规则 + 内置平台解析器
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每条 hotspot_source 可带 parser_config JSON:
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方式 A — 内置解析器: {"parser": "builtin", "builtin_name": "weibo"}
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方式 B — JSONPath: {"parser": "json_path", "item_path": "$.data.list[*]", "field_map": {...}}
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方式 C — CSS选择器: {"parser": "css", "item_selector": ".hot-item", "field_map": {...}}
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方式 D — Regex: {"parser": "regex", "item_regex": "...", "field_map": {...}}
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方式 E — RSS: {"parser": "rss"}
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field_map: {"title":"...", "url":"...", "heat_score":"...", "summary":"...", "category":"...",
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"tags":"...", "engagement_count":"...", "comment_count":"...", "share_count":"..."}
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"""
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import json, re, time
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import xml.etree.ElementTree as ET
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from datetime import datetime
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from appPublic.uniqueID import getID
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@ -8,50 +20,317 @@ from sqlor.dbpools import DBPools
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def now_str():
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return datetime.now().strftime('%Y-%m-%d %H:%M:%S')
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async def fetch_rss(session, url):
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"""RSS/Atom 解析"""
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import aiohttp
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# ============================================================
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# 内置平台解析器 — 每个返回 (url, headers, extractor函数)
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# ============================================================
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BUILTIN_PARSERS = {}
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def _reg(name, url, parser_fn, headers=None):
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BUILTIN_PARSERS[name] = {'url': url, 'parser': parser_fn, 'headers': headers or {}}
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# -- 微博热搜 --
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_reg('weibo_hot',
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'https://weibo.com/ajax/side/hotSearch',
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lambda data: [
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{'title': item.get('word', ''), 'url': f'https://s.weibo.com/weibo?q={item.get("word","")}',
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'heat_score': item.get('raw_hot', item.get('num', 0)),
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'summary': item.get('word_scheme', item.get('word', ''))}
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for item in data.get('data', {}).get('realtime', [])[:50] if isinstance(item, dict)
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],
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{'User-Agent': 'Mozilla/5.0', 'X-Requested-With': 'XMLHttpRequest'})
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# -- 知乎热榜 --
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_reg('zhihu_hot',
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'https://www.zhihu.com/api/v3/feed/topstory/hot-lists/total?limit=50',
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lambda data: [
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{'title': item.get('target', {}).get('title', ''),
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'url': f'https://www.zhihu.com/question/{item.get("target",{}).get("id","")}',
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'heat_score': int(item.get('detail_text', '0').replace('万', '0000').replace('亿', '00000000').replace('热度', '') or 0),
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'summary': item.get('target', {}).get('excerpt', '')[:500]}
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for item in data.get('data', []) if isinstance(item, dict)
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],
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{'User-Agent': 'Mozilla/5.0'})
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# -- 百度热搜 --
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_reg('baidu_hot',
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'https://top.baidu.com/board?tab=realtime',
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lambda data: [
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{'title': item.get('word', ''), 'url': item.get('url', ''),
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'heat_score': int(item.get('hotScore', 0)),
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'summary': item.get('desc', '')}
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for item in data.get('data', {}).get('cards', [{}])[0].get('content', []) if isinstance(item, dict)
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],
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{'User-Agent': 'Mozilla/5.0'})
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# -- 头条热榜 --
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_reg('toutiao_hot',
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'https://www.toutiao.com/hot-event/hot-board/?origin=toutiao_pc',
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lambda data: [
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{'title': item.get('Title', ''), 'url': item.get('Url', ''),
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'heat_score': int(float(item.get('HotValue', 0))),
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'summary': item.get('Desc', '')}
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for item in (data.get('data', []) if isinstance(data.get('data'), list) else [])[:50]
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],
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{'User-Agent': 'Mozilla/5.0', 'Referer': 'https://www.toutiao.com/'})
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# -- B站热门 --
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_reg('bilibili_hot',
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'https://api.bilibili.com/x/web-interface/popular?ps=50',
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lambda data: [
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{'title': item.get('title', ''), 'url': f'https://www.bilibili.com/video/{item.get("bvid","")}',
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'heat_score': item.get('stat', {}).get('view', 0),
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'summary': item.get('desc', '')[:500],
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'engagement_count': item.get('stat', {}).get('like', 0),
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'comment_count': item.get('stat', {}).get('reply', 0),
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'share_count': item.get('stat', {}).get('share', 0),
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'category': item.get('tname', '')}
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for item in data.get('data', {}).get('list', []) if isinstance(item, dict)
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],
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{'User-Agent': 'Mozilla/5.0', 'Referer': 'https://www.bilibili.com/'})
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# -- 抖音热点 (通过第三方聚合接口) --
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_reg('douyin_hot',
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'https://dy.feigua.cn/api/hot/board',
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lambda data: [
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{'title': item.get('title', item.get('word', '')),
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'url': item.get('url', ''),
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'heat_score': int(item.get('hot_value', item.get('heat', 0))),
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'summary': item.get('desc', '')[:500]}
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for item in (data.get('data', []) if isinstance(data.get('data'), list) else [])[:50]
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],
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{'User-Agent': 'Mozilla/5.0'})
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# -- 36氪热榜 --
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_reg('36kr_hot',
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'https://www.36kr.com/api/search/list/info-flow/hot?pageSize=30',
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lambda data: [
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{'title': item.get('title', ''), 'url': f'https://www.36kr.com/p/{item.get("id","")}',
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'heat_score': item.get('total_count', 0),
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'summary': item.get('summary', '')[:500],
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'engagement_count': item.get('total_count', 0)}
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for item in data.get('data', {}).get('items', []) if isinstance(item, dict)
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],
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{'User-Agent': 'Mozilla/5.0'})
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# -- GitHub Trending (HTML parsing via API proxy) --
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_reg('github_trending',
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'https://api.github.com/search/repositories?q=stars:>1&sort=stars&order=desc&per_page=20',
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lambda data: [
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{'title': item.get('full_name', ''), 'url': item.get('html_url', ''),
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'heat_score': item.get('stargazers_count', 0),
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'summary': item.get('description', '')[:500],
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'category': item.get('language', ''),
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'engagement_count': item.get('forks_count', 0)}
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for item in data.get('items', []) if isinstance(item, dict)
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],
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{'Accept': 'application/vnd.github.v3+json', 'User-Agent': 'HotspotRadar/1.0'})
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# -- HackerNews --
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_reg('hackernews',
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'https://hacker-news.firebaseio.com/v0/topstories.json',
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None, # special: needs 2-step fetch
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{'User-Agent': 'Mozilla/5.0'})
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# -- V2EX 热帖 --
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_reg('v2ex_hot',
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'https://www.v2ex.com/api/topics/hot.json',
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lambda data: [
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{'title': item.get('title', ''), 'url': item.get('url', ''),
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'heat_score': item.get('replies', 0) * 10,
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'summary': (item.get('content', '') or '')[:500],
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'comment_count': item.get('replies', 0),
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'category': item.get('node', {}).get('title', '') if isinstance(item.get('node'), dict) else ''}
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for item in data if isinstance(item, dict)
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],
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{'User-Agent': 'Mozilla/5.0'})
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# -- RSSHub (标准格式) --
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_reg('rsshub',
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None, # url comes from source config
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None, # parsed as RSS/Atom feed
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{})
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# ============================================================
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# 可配置提取器
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# ============================================================
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def extract_json_path(data, config):
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"""JSONPath 提取 (简易实现: $.a.b[*] 格式)"""
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item_path = config.get('item_path', '$[*]')
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field_map = config.get('field_map', {})
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# 解析路径: $.data.list[*] → ['data', 'list', '*']
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path_parts = []
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if item_path.startswith('$.'):
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item_path = item_path[2:]
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elif item_path.startswith('$'):
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item_path = item_path[1:]
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# 按 . 分割，处理 [*] 通配
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for part in item_path.split('.'):
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part = part.strip()
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if not part:
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continue
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if part.endswith('[*]'):
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path_parts.append(part[:-3])
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path_parts.append('*')
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else:
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path_parts.append(part)
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# 导航到 items 数组
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items = data
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for part in path_parts:
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if part == '*':
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if isinstance(items, list):
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pass # wildcard means iterate
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continue
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if isinstance(items, dict):
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items = items.get(part)
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elif isinstance(items, list):
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# 对每个元素取 part
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items = [i.get(part) for i in items if isinstance(i, dict)]
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items = [x for sub in items for x in (sub if isinstance(sub, list) else [sub])]
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else:
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return []
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if not isinstance(items, list):
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items = [items] if items else []
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result = []
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for item in items:
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if not isinstance(item, dict):
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continue
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entry = {
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'title': _extract_field(item, field_map.get('title', 'title')),
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'url': _extract_field(item, field_map.get('url', 'url')),
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'heat_score': float(_extract_field(item, field_map.get('heat_score', '0')) or 0),
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'summary': str(_extract_field(item, field_map.get('summary', '')) or '')[:500],
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'category': str(_extract_field(item, field_map.get('category', '')) or ''),
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'tags': str(_extract_field(item, field_map.get('tags', '')) or ''),
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'engagement_count': int(_extract_field(item, field_map.get('engagement_count', '0')) or 0),
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'comment_count': int(_extract_field(item, field_map.get('comment_count', '0')) or 0),
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'share_count': int(_extract_field(item, field_map.get('share_count', '0')) or 0),
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}
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if entry['title']:
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result.append(entry)
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return result
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def _extract_field(obj, path):
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"""从嵌套字典中按路径取值: 'target.title' 或 'stat.view'"""
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if not path or not isinstance(obj, dict):
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return obj if not isinstance(obj, dict) else ''
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parts = path.split('.')
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val = obj
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for p in parts:
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if isinstance(val, dict):
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val = val.get(p, '')
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else:
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return ''
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return val
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def extract_css(html, config):
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"""
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CSS 选择器提取 (简易实现: 正则 + 文本匹配)
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完整版需要 BeautifulSoup/pyquery — 这里做轻量正则提取
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"""
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item_sel = config.get('item_selector', '')
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field_map = config.get('field_map', {})
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results = []
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# 尝试按常见的 HTML 模式分割
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# 匹配 <a> 标签中的 title 和 href
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link_pattern = re.compile(
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r'<a[^>]+href=["\']([^"\']+)["\'][^>]*>([^<]*)</a>',
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re.IGNORECASE | re.DOTALL
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)
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for m in link_pattern.finditer(html):
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url, title = m.group(1), m.group(2).strip()
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if len(title) < 3:
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continue
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results.append({
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'title': title[:200],
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'url': url[:2000],
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'heat_score': 60,
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'summary': '',
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'category': '',
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'tags': '',
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'engagement_count': 0,
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'comment_count': 0,
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'share_count': 0,
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})
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return results[:100]
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def extract_regex(text, config):
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"""正则提取"""
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pattern = config.get('item_regex', '')
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field_map = config.get('field_map', {})
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if not pattern:
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return []
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results = []
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for m in re.finditer(pattern, text, re.DOTALL):
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entry = {
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'title': m.groupdict().get(field_map.get('title', 'title'), '')[:200],
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'url': m.groupdict().get(field_map.get('url', 'url'), ''),
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'heat_score': float(m.groupdict().get(field_map.get('heat_score', '0'), 0) or 0),
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'summary': str(m.groupdict().get(field_map.get('summary', ''), ''))[:500],
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'category': '',
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'tags': '',
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'engagement_count': 0,
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'comment_count': 0,
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'share_count': 0,
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}
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if entry['title']:
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results.append(entry)
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return results
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def extract_rss(xml_text):
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"""RSS/Atom 提取"""
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items = []
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try:
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async with session.get(url, timeout=aiohttp.ClientTimeout(total=30)) as resp:
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if resp.status != 200:
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return items, resp.status, 0
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text = await resp.text()
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size = len(text.encode())
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root = ET.fromstring(text)
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root = ET.fromstring(xml_text)
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ns_atom = 'http://www.w3.org/2005/Atom'
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# RSS 2.0
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for item in root.findall('.//item'):
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items.append({
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'title': item.findtext('title', ''),
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'title': item.findtext('title', '')[:200],
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'url': item.findtext('link', ''),
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'summary': (item.findtext('description', '') or '')[:500],
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'publish_time': item.findtext('pubDate', ''),
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'heat_score': 80,
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'category': item.findtext('category', ''),
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'tags': '',
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'engagement_count': 0, 'comment_count': 0, 'share_count': 0,
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})
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# Atom fallback
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if not items:
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for entry in root.findall(f'.//{{{ns_atom}}}entry'):
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link_el = entry.find(f'{{{ns_atom}}}link')
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items.append({
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'title': entry.findtext(f'{{{ns_atom}}}title', ''),
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'title': entry.findtext(f'{{{ns_atom}}}title', '')[:200],
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'url': link_el.get('href', '') if link_el is not None else '',
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'summary': (entry.findtext(f'{{{ns_atom}}}summary', '') or '')[:500],
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'publish_time': entry.findtext(f'{{{ns_atom}}}updated', '') or '',
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'heat_score': 70,
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'category': '',
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'tags': '',
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'engagement_count': 0, 'comment_count': 0, 'share_count': 0,
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})
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return items, resp.status, size
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except Exception as e:
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return [], 0, 0
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except ET.ParseError:
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pass
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return items
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async def fetch_api(session, src):
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"""API 模式：支持 GET/POST + Headers + Auth"""
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import aiohttp
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# ============================================================
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# 主逻辑: fetch + extract
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# ============================================================
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async def fetch_and_extract(session, src):
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"""根据 source 配置，抓取并提取 items"""
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url = src.get('url', '')
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method = src.get('fetch_method', 'GET').upper()
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headers = {}
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if src.get('headers'):
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try:
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@ -59,256 +338,177 @@ async def fetch_api(session, src):
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except:
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pass
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if src.get('api_key'):
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headers['Authorization'] = f'Bearer {src["api_key"]}'
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body = None
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if src.get('request_body') and method == 'POST':
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# 解析 parser_config
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parser_config = {}
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if src.get('parser_config'):
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try:
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body = json.dumps(json.loads(src['request_body']))
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parser_config = json.loads(src.get('parser_config', '{}'))
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except:
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body = src['request_body']
|
||||
pass
|
||||
|
||||
parser_type = parser_config.get('parser', 'json_path')
|
||||
builtin_name = parser_config.get('builtin_name', '')
|
||||
|
||||
items = []
|
||||
try:
|
||||
if method == 'POST':
|
||||
async with session.post(url, headers=headers, data=body or '', timeout=aiohttp.ClientTimeout(total=30)) as resp:
|
||||
status = resp.status
|
||||
text = await resp.text()
|
||||
size = len(text.encode())
|
||||
if status == 200:
|
||||
try:
|
||||
data = json.loads(text)
|
||||
except:
|
||||
data = {}
|
||||
else:
|
||||
async with session.get(url, headers=headers, timeout=aiohttp.ClientTimeout(total=30)) as resp:
|
||||
status = resp.status
|
||||
text = await resp.text()
|
||||
size = len(text.encode())
|
||||
if status == 200:
|
||||
try:
|
||||
data = json.loads(text)
|
||||
except:
|
||||
# Maybe it's XML/RSS — try RSS parser
|
||||
data = {}
|
||||
|
||||
# Extract items from JSON response
|
||||
if isinstance(data, list):
|
||||
entries = data
|
||||
elif isinstance(data, dict):
|
||||
entries = data.get('data', data.get('items', data.get('list', data.get('result', []))))
|
||||
else:
|
||||
entries = []
|
||||
|
||||
for entry in entries[:100]:
|
||||
if not isinstance(entry, dict):
|
||||
continue
|
||||
items.append({
|
||||
'title': str(entry.get('title', entry.get('name', ''))),
|
||||
'url': str(entry.get('url', entry.get('link', ''))),
|
||||
'summary': str(entry.get('summary', entry.get('description', entry.get('desc', ''))))[:500],
|
||||
'heat_score': float(entry.get('heat', entry.get('hot', entry.get('score', 0))) or 0),
|
||||
'category': str(entry.get('category', entry.get('type', ''))),
|
||||
'tags': str(entry.get('tags', '')),
|
||||
'engagement_count': int(entry.get('engagement', entry.get('interactions', 0)) or 0),
|
||||
'comment_count': int(entry.get('comments', entry.get('replies', 0)) or 0),
|
||||
'share_count': int(entry.get('shares', entry.get('forwards', 0)) or 0),
|
||||
})
|
||||
|
||||
return items, status, size
|
||||
except Exception as e:
|
||||
return [], 0, 0
|
||||
|
||||
async def fetch_browser(session, src):
|
||||
"""
|
||||
Browser 模式：使用 HTTP 请求 + 从 HTML 提取结构化数据
|
||||
(完整 Headless Browser 需要 playwright/selenium — 这里用 HTTP+解析做轻量版)
|
||||
"""
|
||||
import aiohttp
|
||||
from html.parser import HTMLParser
|
||||
|
||||
url = src.get('url', '')
|
||||
items = []
|
||||
|
||||
try:
|
||||
headers = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36'}
|
||||
if src.get('headers'):
|
||||
# === 内置解析器路径 ===
|
||||
if parser_type == 'builtin' and builtin_name in BUILTIN_PARSERS:
|
||||
bp = BUILTIN_PARSERS[builtin_name]
|
||||
fetch_url = bp['url'] or url
|
||||
fetch_headers = {**headers, **bp.get('headers', {})}
|
||||
|
||||
if builtin_name == 'hackernews':
|
||||
# 两步: 先拿 top IDs, 再批量拿详情
|
||||
try:
|
||||
headers.update(json.loads(src.get('headers', '{}')))
|
||||
except:
|
||||
pass
|
||||
async with aiohttp.ClientSession() as hn_session:
|
||||
async with hn_session.get(
|
||||
'https://hacker-news.firebaseio.com/v0/topstories.json',
|
||||
timeout=aiohttp.ClientTimeout(total=15)
|
||||
) as resp:
|
||||
ids = await resp.json()
|
||||
items = []
|
||||
for story_id in ids[:30]:
|
||||
try:
|
||||
async with hn_session.get(
|
||||
f'https://hacker-news.firebaseio.com/v0/item/{story_id}.json',
|
||||
timeout=aiohttp.ClientTimeout(total=10)
|
||||
) as r2:
|
||||
story = await r2.json()
|
||||
if story and story.get('title'):
|
||||
items.append({
|
||||
'title': story.get('title', '')[:200],
|
||||
'url': story.get('url', f'https://news.ycombinator.com/item?id={story_id}'),
|
||||
'heat_score': story.get('score', 0),
|
||||
'engagement_count': story.get('score', 0),
|
||||
'comment_count': story.get('descendants', 0),
|
||||
'summary': '',
|
||||
'category': story.get('type', ''),
|
||||
'tags': '',
|
||||
'share_count': 0,
|
||||
})
|
||||
except:
|
||||
continue
|
||||
return items, 200, 0
|
||||
except Exception as e:
|
||||
return [], 0, 0
|
||||
|
||||
async with session.get(url, headers=headers, timeout=aiohttp.ClientTimeout(total=30)) as resp:
|
||||
status = resp.status
|
||||
html = await resp.text()
|
||||
size = len(html.encode())
|
||||
elif builtin_name == 'rsshub':
|
||||
# 来源的 url 就是 RSSHub 地址
|
||||
try:
|
||||
async with session.get(
|
||||
url, headers=fetch_headers,
|
||||
timeout=aiohttp.ClientTimeout(total=30)
|
||||
) as resp:
|
||||
text = await resp.text()
|
||||
size = len(text.encode())
|
||||
items = extract_rss(text)
|
||||
return items, resp.status, size
|
||||
except Exception as e:
|
||||
return [], 0, 0
|
||||
|
||||
if status != 200:
|
||||
return items, status, size
|
||||
|
||||
# 通用 HTML 提取：找常见的热点列表结构
|
||||
# 策略：提取所有 <a> 标签中带标题属性的，或 <article>/<li> 块
|
||||
from html.parser import HTMLParser as HP
|
||||
|
||||
class HotExtractor(HP):
|
||||
def __init__(self):
|
||||
super().__init__()
|
||||
self.items = []
|
||||
self.current = {}
|
||||
self.in_item = False
|
||||
self.tag_stack = []
|
||||
self.text_buf = ''
|
||||
else:
|
||||
try:
|
||||
async with session.get(
|
||||
fetch_url, headers=fetch_headers,
|
||||
timeout=aiohttp.ClientTimeout(total=30)
|
||||
) as resp:
|
||||
if resp.status != 200:
|
||||
return [], resp.status, 0
|
||||
text = await resp.text()
|
||||
size = len(text.encode())
|
||||
try:
|
||||
data = json.loads(text)
|
||||
except json.JSONDecodeError:
|
||||
return [], resp.status, size
|
||||
|
||||
def handle_starttag(self, tag, attrs):
|
||||
attrs_d = dict(attrs)
|
||||
self.tag_stack.append(tag)
|
||||
# 检测列表项容器
|
||||
if tag in ('article', 'li') and 'class' in attrs_d:
|
||||
cls = attrs_d['class'].lower()
|
||||
if any(k in cls for k in ('post', 'item', 'entry', 'card', 'topic', 'hot', 'trend')):
|
||||
self.in_item = True
|
||||
self.current = {'url': attrs_d.get('href', '')}
|
||||
|
||||
if tag == 'a' and ('title' in attrs_d or self._is_hot_class(attrs_d.get('class', ''))):
|
||||
href = attrs_d.get('href', '')
|
||||
title = attrs_d.get('title', '')
|
||||
if href and title:
|
||||
self.items.append({'title': title, 'url': href, 'summary': ''})
|
||||
|
||||
def handle_endtag(self, tag):
|
||||
if self.tag_stack:
|
||||
self.tag_stack.pop()
|
||||
if self.in_item and tag in ('article', 'li', 'div'):
|
||||
if self.current.get('title'):
|
||||
self.items.append(self.current)
|
||||
self.in_item = False
|
||||
self.current = {}
|
||||
|
||||
def handle_data(self, data):
|
||||
if self.in_item and not self.current.get('title'):
|
||||
d = data.strip()
|
||||
if len(d) > 3:
|
||||
self.current['title'] = d[:200]
|
||||
|
||||
def _is_hot_class(self, cls):
|
||||
if not cls:
|
||||
return False
|
||||
cl = cls.lower()
|
||||
return any(k in cl for k in ('title', 'hot', 'trending', 'headline'))
|
||||
items = bp['parser'](data)
|
||||
return items, resp.status, size
|
||||
except Exception as e:
|
||||
return [], 0, 0
|
||||
|
||||
# === 通用提取器路径 ===
|
||||
try:
|
||||
async with session.get(
|
||||
url, headers=headers,
|
||||
timeout=aiohttp.ClientTimeout(total=30)
|
||||
) as resp:
|
||||
if resp.status != 200:
|
||||
return [], resp.status, 0
|
||||
text = await resp.text()
|
||||
size = len(text.encode())
|
||||
|
||||
extractor = HotExtractor()
|
||||
try:
|
||||
extractor.feed(html)
|
||||
except:
|
||||
pass
|
||||
if parser_type == 'json_path':
|
||||
try:
|
||||
data = json.loads(text)
|
||||
except json.JSONDecodeError:
|
||||
return [], 0, size
|
||||
items = extract_json_path(data, parser_config)
|
||||
return items, resp.status, size
|
||||
|
||||
for it in extractor.items:
|
||||
if it.get('title') and len(it['title']) > 2:
|
||||
items.append({
|
||||
'title': it['title'][:200],
|
||||
'url': it.get('url', ''),
|
||||
'summary': it.get('summary', '')[:500],
|
||||
'heat_score': 80,
|
||||
})
|
||||
elif parser_type == 'css':
|
||||
items = extract_css(text, parser_config)
|
||||
return items, resp.status, size
|
||||
|
||||
# 如果没提取到，尝试 JSON-LD 或 meta 标签
|
||||
if not items:
|
||||
import re
|
||||
# 尝试提取 og:title / twitter:title
|
||||
og_titles = re.findall(r'<meta[^>]+property="og:title"[^>]+content="([^"]+)"', html)
|
||||
for t in og_titles[:20]:
|
||||
items.append({'title': t, 'url': url, 'summary': '', 'heat_score': 60})
|
||||
elif parser_type == 'regex':
|
||||
items = extract_regex(text, parser_config)
|
||||
return items, resp.status, size
|
||||
|
||||
return items, status, size
|
||||
elif parser_type == 'rss':
|
||||
items = extract_rss(text)
|
||||
return items, resp.status, size
|
||||
|
||||
else:
|
||||
return [], resp.status, size
|
||||
|
||||
except Exception as e:
|
||||
return [], 0, 0
|
||||
|
||||
async def fetch_crawler(session, src):
|
||||
"""
|
||||
Crawler 模式：从起始URL递归爬取，遵守深度和规则
|
||||
"""
|
||||
import aiohttp
|
||||
from urllib.parse import urljoin, urlparse
|
||||
|
||||
# ============================================================
|
||||
# 入库
|
||||
# ============================================================
|
||||
|
||||
async def save_items(db, src_id, items, fetch_time):
|
||||
new_count = 0
|
||||
dup_count = 0
|
||||
|
||||
start_urls = [src.get('url', '')]
|
||||
if src.get('crawler_start_urls'):
|
||||
try:
|
||||
start_urls = json.loads(src.get('crawler_start_urls', '[]'))
|
||||
except:
|
||||
pass
|
||||
|
||||
depth = int(src.get('crawler_depth', 1))
|
||||
rules = {}
|
||||
if src.get('crawler_rules'):
|
||||
try:
|
||||
rules = json.loads(src.get('crawler_rules', '{}'))
|
||||
except:
|
||||
pass
|
||||
|
||||
# 规则：allowed_domains, link_selector, item_selector, title_selector
|
||||
allowed_domains = rules.get('allowed_domains', [])
|
||||
|
||||
visited = set()
|
||||
to_visit = list(start_urls)
|
||||
items = []
|
||||
headers = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36'}
|
||||
|
||||
for d in range(depth):
|
||||
next_urls = []
|
||||
for url in to_visit:
|
||||
if url in visited or len(items) >= 200:
|
||||
continue
|
||||
visited.add(url)
|
||||
|
||||
# 域名白名单检查
|
||||
if allowed_domains:
|
||||
domain = urlparse(url).netloc
|
||||
if not any(ad in domain for ad in allowed_domains):
|
||||
async with db.sqlorContext('sage') as sor:
|
||||
for item in items:
|
||||
url = item.get('url', '')
|
||||
if url:
|
||||
existing = await sor.sqlExe(
|
||||
"select id from hotspot_item where url=${u}$ limit 1", {'u': url})
|
||||
if existing:
|
||||
dup_count += 1
|
||||
continue
|
||||
|
||||
try:
|
||||
async with session.get(url, headers=headers, timeout=aiohttp.ClientTimeout(total=20)) as resp:
|
||||
if resp.status != 200:
|
||||
continue
|
||||
html = await resp.text()
|
||||
|
||||
import re
|
||||
# 提取页面内链接
|
||||
links = re.findall(r'href=["\']([^"\']+)["\']', html)
|
||||
for link in links:
|
||||
full = urljoin(url, link)
|
||||
if full not in visited and full.startswith(('http://', 'https://')):
|
||||
next_urls.append(full)
|
||||
|
||||
# 提取标题
|
||||
titles = re.findall(r'<title>([^<]+)</title>', html)
|
||||
if titles:
|
||||
items.append({
|
||||
'title': titles[0][:200],
|
||||
'url': url,
|
||||
'summary': '',
|
||||
'heat_score': 50 + (3 - d) * 15,
|
||||
})
|
||||
|
||||
# 尝试提取 h1/h2 标题
|
||||
h_tags = re.findall(r'<h[12][^>]*>([^<]+)</h[12]>', html)
|
||||
for h in h_tags[:10]:
|
||||
h = h.strip()
|
||||
if len(h) > 5:
|
||||
items.append({
|
||||
'title': h[:200],
|
||||
'url': url,
|
||||
'summary': '',
|
||||
'heat_score': 40 + (3 - d) * 10,
|
||||
})
|
||||
|
||||
except:
|
||||
continue
|
||||
|
||||
to_visit = next_urls[:50] # 每层限制50个链接
|
||||
await sor.C('hotspot_item', {
|
||||
'id': getID(),
|
||||
'source_id': src_id,
|
||||
'title': item.get('title', '')[:500],
|
||||
'url': url[:2000] if url else '',
|
||||
'summary': item.get('summary', '')[:1000],
|
||||
'heat_score': item.get('heat_score', 100),
|
||||
'heat_velocity': 0,
|
||||
'publish_time': fetch_time,
|
||||
'first_seen': fetch_time,
|
||||
'last_updated': fetch_time,
|
||||
'status': 'emerging',
|
||||
'category': item.get('category', ''),
|
||||
'tags': item.get('tags', ''),
|
||||
'engagement_count': item.get('engagement_count', 0),
|
||||
'comment_count': item.get('comment_count', 0),
|
||||
'share_count': item.get('share_count', 0),
|
||||
'sentiment': 'neutral',
|
||||
})
|
||||
new_count += 1
|
||||
|
||||
return items, 200, 0
|
||||
return new_count, dup_count
|
||||
|
||||
|
||||
# ============================================================
|
||||
# 入口
|
||||
# ============================================================
|
||||
|
||||
async def main(request):
|
||||
db = DBPools()
|
||||
@ -326,94 +526,45 @@ async def main(request):
|
||||
|
||||
results['total'] += 1
|
||||
src_id = src['id']
|
||||
src_type = src.get('type', 'rss')
|
||||
t0 = time.time()
|
||||
|
||||
# 执行抓取
|
||||
try:
|
||||
if src_type == 'rss':
|
||||
items, code, size = await fetch_rss(session, src.get('url', ''))
|
||||
elif src_type == 'api':
|
||||
items, code, size = await fetch_api(session, src)
|
||||
elif src_type == 'browser':
|
||||
items, code, size = await fetch_browser(session, src)
|
||||
elif src_type == 'crawler':
|
||||
items, code, size = await fetch_crawler(session, src)
|
||||
else:
|
||||
items, code, size = [], 0, 0
|
||||
items, code, size = await fetch_and_extract(session, src)
|
||||
except Exception as e:
|
||||
items, code, size = [], 0, 0
|
||||
results['errors'] += 1
|
||||
async with db.sqlorContext('sage') as sor:
|
||||
await sor.C('hotspot_fetch_log', {
|
||||
'id': getID(), 'source_id': src_id,
|
||||
'start_time': now, 'end_time': now_str(),
|
||||
'duration_ms': int((time.time() - t0) * 1000),
|
||||
'status': 'failed', 'items_total': 0, 'items_new': 0,
|
||||
'items_duplicate': 0, 'error_msg': str(e)[:1000],
|
||||
'items_duplicate': 0,
|
||||
'error_msg': str(e)[:1000],
|
||||
'response_code': 0, 'response_size_bytes': 0,
|
||||
})
|
||||
results['errors'] += 1
|
||||
continue
|
||||
|
||||
elapsed = int((time.time() - t0) * 1000)
|
||||
status = 'success' if code in (0, 200) else 'partial'
|
||||
new_count = 0
|
||||
dup_count = 0
|
||||
status = 'success' if code in (0, 200) else ('partial' if items else 'failed')
|
||||
|
||||
new_count, dup_count = await save_items(db, src_id, items, now)
|
||||
|
||||
# 存入数据库
|
||||
async with db.sqlorContext('sage') as sor:
|
||||
# 更新来源 last_fetch
|
||||
await sor.U('hotspot_source', {'id': src_id, 'last_fetch': now})
|
||||
|
||||
for item in items:
|
||||
url = item.get('url', '')
|
||||
if url:
|
||||
existing = await sor.sqlExe(
|
||||
"select id from hotspot_item where url=${u}$ limit 1", {'u': url})
|
||||
if existing:
|
||||
dup_count += 1
|
||||
continue
|
||||
|
||||
new_id = getID()
|
||||
await sor.C('hotspot_item', {
|
||||
'id': new_id, 'source_id': src_id,
|
||||
'title': item.get('title', '')[:500],
|
||||
'url': url[:2000] if url else '',
|
||||
'summary': item.get('summary', '')[:1000],
|
||||
'heat_score': item.get('heat_score', 100),
|
||||
'heat_velocity': 0,
|
||||
'publish_time': item.get('publish_time', now),
|
||||
'first_seen': now, 'last_updated': now,
|
||||
'status': 'emerging',
|
||||
'category': item.get('category', ''),
|
||||
'tags': item.get('tags', ''),
|
||||
'engagement_count': item.get('engagement_count', 0),
|
||||
'comment_count': item.get('comment_count', 0),
|
||||
'share_count': item.get('share_count', 0),
|
||||
'sentiment': 'neutral',
|
||||
})
|
||||
new_count += 1
|
||||
|
||||
# 写抓取日志
|
||||
await sor.C('hotspot_fetch_log', {
|
||||
'id': getID(), 'source_id': src_id,
|
||||
'start_time': now, 'end_time': now_str(),
|
||||
'duration_ms': elapsed,
|
||||
'status': status, 'items_total': len(items),
|
||||
'items_new': new_count, 'items_duplicate': dup_count,
|
||||
'error_msg': '',
|
||||
'duration_ms': elapsed, 'status': status,
|
||||
'items_total': len(items), 'items_new': new_count,
|
||||
'items_duplicate': dup_count, 'error_msg': '',
|
||||
'response_code': code, 'response_size_bytes': size,
|
||||
})
|
||||
|
||||
results['new_items'] += new_count
|
||||
results['details'].append({
|
||||
'source': src.get('name', src_id),
|
||||
'type': src_type,
|
||||
'total': len(items),
|
||||
'new': new_count,
|
||||
'dup': dup_count,
|
||||
'elapsed_ms': elapsed,
|
||||
'code': code,
|
||||
'items': len(items), 'new': new_count, 'dup': dup_count,
|
||||
'elapsed_ms': elapsed, 'code': code,
|
||||
})
|
||||
|
||||
return results
|
||||
|
||||
@ -173,7 +173,7 @@
|
||||
{
|
||||
"widgettype": "Text",
|
||||
"options": {
|
||||
"text": "工作流: ① 添加来源(type=api/browser/crawler) → ② 配置调度(cron/interval) → ③ 查看抓取日志(成功率/错误) → ④ 浏览热点(emerging/rising/hot/cooling/expired) → ⑤ 五维分析 → ⑥ 设置预警",
|
||||
"text": "工作流: ① 添加来源 → parser_config选parser=builtin,builtin_name=weibo/zhihu/baidu/bilibili/... 或自定义json_path/css/regex → ② 调度配置 → ③ 抓取 → ④ 分析 → ⑤ 浏览 | 内置解析器: weibo_hot zhihu_hot baidu_hot toutiao_hot bilibili_hot douyin_hot 36kr_hot github_trending hackernews v2ex_hot rsshub",
|
||||
"style": "font-size:12px;color:#bbb;padding:16px;border-top:1px solid #eee;margin-top:8px;"
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user