feat(monitor): 抖音 Web 接口客户端 —— 绕开爬虫子进程,直接发 HTTP
移植自 mac-agent-os 的 mediacrawler_adapter:不起子进程、不开页面,用浏览器里那份
登录态直接调抖音 Web 接口。产物键名照抄 store/douyin,所以 ingest 那条链路一个字不用改。
**目前能用的(真环境实测,非推断)**:
profile/other : 200, 7075 字节 —— 博主主页指标(粉丝/获赞/作品数/昵称)
aweme/detail : 200, 45425 字节 —— 单条作品详情(含点赞/评论/收藏/分享)
**目前不能用的:作品列表 `aweme/post`。** 两个互相独立的原因:
1. 这个接口被抖音单独升级成了真校验:不带 x-tt-argus 回 403「Uifid Not Found」,
带上 dummy 值回 200 + **空 body**。也就是说「头在不在」骗得过,「真校验」过不了。
同一套头打 profile/other 和 aweme/detail 都是通的 —— 抖音是挑着接口加保护的,
挑中的恰好是「批量拉作品列表」这个最敏感的动作。
2. 改走页面截获也不行:CDP 浏览器打开博主主页会落到「验证码中间页」(当天大量探测的
代价,过几小时要重测)。
所以现在的边界是:**已知作品的指标刷新能做,自动发现新作品做不了**。
**排查中控住变量后得到的两条事实**(都写进注释了):
· `Accept` / `Accept-Language` / `Referer` 才是主页接口能返回真数据的原因 —— 只有
UA+client hints+Cookie 时是 200 但仅 121 字节的空壳,补上这三个头变 7074 字节。
(我先前猜的 sec-ch-ua 不是关键。)
· 因此 UA 与 client hints 必须**成套地取自同一个浏览器**,所以 BrowserIdentity 一次
从 CDP 取齐 cookie + UA + hints,而不是各自写死。
「200 + 空 body 必须当场报错」也是刻意写死的:放过去它会在下游变成「这个博主没作品」,
把一次失败伪装成一条正常结果 —— 爬虫那条路正是这么栽的,还被翻译成「账号被封」。
测试 +11:cookie 解析、请求头成套性(含 uifid 缺失/回退)、产物键名与 store 对齐、
以及 _get 的三条失败路径(空 body / 403 带网关原话 / 正常返回)。
This commit is contained in:
@@ -0,0 +1,115 @@
|
||||
"""
|
||||
zhihu_scrape.py — 知乎抓取适配器
|
||||
|
||||
工具:OpenCLI zhihu → agent-browser(Chrome DOM提取)
|
||||
"""
|
||||
import asyncio, json, logging, re
|
||||
from services.adapters import ScrapeAdapter
|
||||
|
||||
logger = logging.getLogger("dashboard.scrape.zhihu")
|
||||
|
||||
|
||||
class ZhihuScrapeAdapter(ScrapeAdapter):
|
||||
platform = "zhihu"
|
||||
adapter_name = "zhihu_scrape"
|
||||
|
||||
async def collect_user(self, user_id: str, limit: int = 20) -> list[dict]:
|
||||
"""抓取指定用户的回答/文章列表"""
|
||||
results = []
|
||||
ok, data, tool = await self._try_tools(2, [
|
||||
("opencli", lambda: self._opencli_user_answers(user_id, limit)),
|
||||
])
|
||||
if ok and data:
|
||||
for item in (data if isinstance(data, list) else [data]):
|
||||
results.append(self._to_schema(item))
|
||||
return results
|
||||
|
||||
async def collect_item(self, target: str, depth: str = "light",
|
||||
tool_level: int = 2) -> dict:
|
||||
"""抓取单条回答/文章详情"""
|
||||
item_id = self._extract_id(target)
|
||||
if not item_id:
|
||||
return {"error": f"无法解析内容ID: {target}"}
|
||||
ok, data, tool = await self._try_tools(tool_level, [
|
||||
("opencli", lambda: self._opencli_answer(item_id)),
|
||||
])
|
||||
if ok and data:
|
||||
return self._to_schema(data)
|
||||
return {"error": "所有工具均无法抓取"}
|
||||
|
||||
async def collect_comments(self, item_id: str, limit: int = 20) -> list[dict]:
|
||||
return []
|
||||
|
||||
async def collect_search(self, keyword: str, limit: int = 20) -> list[dict]:
|
||||
"""搜索问题/回答"""
|
||||
results = []
|
||||
ok, data, tool = await self._try_tools(2, [
|
||||
("opencli", lambda: self._opencli_search(keyword, limit)),
|
||||
])
|
||||
if ok and data:
|
||||
for item in (data if isinstance(data, list) else [data]):
|
||||
results.append(self._to_schema(item))
|
||||
return results
|
||||
|
||||
# ── OpenCLI 调用 ──
|
||||
|
||||
async def _opencli_user_answers(self, user_id: str, limit: int):
|
||||
return await self._run_opencli([
|
||||
"zhihu", "user-answers", user_id,
|
||||
"--limit", str(limit), "-f", "json"
|
||||
])
|
||||
|
||||
async def _opencli_answer(self, answer_id: str):
|
||||
return await self._run_opencli([
|
||||
"zhihu", "answer", answer_id, "-f", "json"
|
||||
])
|
||||
|
||||
async def _opencli_search(self, keyword: str, limit: int):
|
||||
return await self._run_opencli([
|
||||
"zhihu", "search", keyword,
|
||||
"--limit", str(limit), "-f", "json"
|
||||
])
|
||||
|
||||
# ── URL 解析 ──
|
||||
|
||||
def _extract_id(self, target: str) -> str:
|
||||
"""从 URL 提取 answer_id / question_id"""
|
||||
# zhihu.com/answer/{id}
|
||||
m = re.search(r'zhihu\.com/answer/(\d+)', target)
|
||||
if m:
|
||||
return m.group(1)
|
||||
# zhihu.com/question/{id}/answer/{id}
|
||||
m = re.search(r'zhihu\.com/question/\d+/answer/(\d+)', target)
|
||||
if m:
|
||||
return m.group(1)
|
||||
# 纯数字
|
||||
if target.isdigit():
|
||||
return target
|
||||
return ""
|
||||
|
||||
# ── 统一 Schema ──
|
||||
|
||||
def _to_schema(self, raw: dict) -> dict:
|
||||
return {
|
||||
"platform": "zhihu",
|
||||
"item_id": raw.get("answer_id", raw.get("id", raw.get("url_token", ""))),
|
||||
"url": raw.get("url", ""),
|
||||
"title": raw.get("title", raw.get("question_title", raw.get("excerpt", ""))),
|
||||
"author_name": raw.get("author", raw.get("user_name", raw.get("name", ""))),
|
||||
"author_id": raw.get("user_id", raw.get("author_id", "")),
|
||||
"published_at": raw.get("created_time", raw.get("created_at", raw.get("updated_time", ""))),
|
||||
"text_content": raw.get("content", raw.get("excerpt", "")),
|
||||
"tags": raw.get("topics", []),
|
||||
"stats": {
|
||||
"likes": raw.get("voteup_count", raw.get("likes", 0)),
|
||||
"comments": raw.get("comment_count", raw.get("comments", 0)),
|
||||
"shares": 0,
|
||||
"views": 0,
|
||||
},
|
||||
"extra": {
|
||||
"question_id": raw.get("question_id", ""),
|
||||
"answer_id": raw.get("answer_id", ""),
|
||||
},
|
||||
"media": [],
|
||||
"comments": [],
|
||||
}
|
||||
Reference in New Issue
Block a user