340 lines
13 KiB
Python
340 lines
13 KiB
Python
# 声明：本代码仅供学习和研究目的使用。使用者应遵守以下原则：
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# 1. 不得用于任何商业用途。
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# 2. 使用时应遵守目标平台的使用条款和robots.txt规则。
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# 3. 不得进行大规模爬取或对平台造成运营干扰。
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# 4. 应合理控制请求频率，避免给目标平台带来不必要的负担。
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# 5. 不得用于任何非法或不当的用途。
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#
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# 详细许可条款请参阅项目根目录下的LICENSE文件。
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# 使用本代码即表示您同意遵守上述原则和LICENSE中的所有条款。
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# -*- coding: utf-8 -*-
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# @Author : relakkes@gmail.com
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# @Time : 2023/12/2 18:44
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# @Desc : bilibili 请求客户端
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import asyncio
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import json
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from typing import Any, Callable, Dict, List, Optional, Tuple, Union
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from urllib.parse import urlencode
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import httpx
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from playwright.async_api import BrowserContext, Page
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from base.base_crawler import AbstractApiClient
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from tools import utils
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from .exception import DataFetchError
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from .field import CommentOrderType, SearchOrderType
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from .help import BilibiliSign
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class BilibiliClient(AbstractApiClient):
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def __init__(
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self,
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timeout=10,
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proxies=None,
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*,
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headers: Dict[str, str],
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playwright_page: Page,
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cookie_dict: Dict[str, str],
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):
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self.proxies = proxies
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self.timeout = timeout
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self.headers = headers
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self._host = "https://api.bilibili.com"
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self.playwright_page = playwright_page
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self.cookie_dict = cookie_dict
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async def request(self, method, url, **kwargs) -> Any:
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async with httpx.AsyncClient(proxies=self.proxies) as client:
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response = await client.request(
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method, url, timeout=self.timeout,
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**kwargs
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)
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data: Dict = response.json()
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if data.get("code") != 0:
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raise DataFetchError(data.get("message", "unkonw error"))
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else:
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return data.get("data", {})
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async def pre_request_data(self, req_data: Dict) -> Dict:
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"""
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发送请求进行请求参数签名
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需要从 localStorage 拿 wbi_img_urls 这参数，值如下：
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https://i0.hdslb.com/bfs/wbi/7cd084941338484aae1ad9425b84077c.png-https://i0.hdslb.com/bfs/wbi/4932caff0ff746eab6f01bf08b70ac45.png
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:param req_data:
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:return:
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"""
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if not req_data:
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return {}
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img_key, sub_key = await self.get_wbi_keys()
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return BilibiliSign(img_key, sub_key).sign(req_data)
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async def get_wbi_keys(self) -> Tuple[str, str]:
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"""
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获取最新的 img_key 和 sub_key
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:return:
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"""
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local_storage = await self.playwright_page.evaluate("() => window.localStorage")
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wbi_img_urls = local_storage.get("wbi_img_urls", "") or local_storage.get(
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"wbi_img_url") + "-" + local_storage.get("wbi_sub_url")
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if wbi_img_urls and "-" in wbi_img_urls:
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img_url, sub_url = wbi_img_urls.split("-")
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else:
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resp = await self.request(method="GET", url=self._host + "/x/web-interface/nav")
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img_url: str = resp['wbi_img']['img_url']
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sub_url: str = resp['wbi_img']['sub_url']
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img_key = img_url.rsplit('/', 1)[1].split('.')[0]
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sub_key = sub_url.rsplit('/', 1)[1].split('.')[0]
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return img_key, sub_key
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async def get(self, uri: str, params=None, enable_params_sign: bool = True) -> Dict:
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final_uri = uri
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if enable_params_sign:
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params = await self.pre_request_data(params)
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if isinstance(params, dict):
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final_uri = (f"{uri}?"
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f"{urlencode(params)}")
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return await self.request(method="GET", url=f"{self._host}{final_uri}", headers=self.headers)
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async def post(self, uri: str, data: dict) -> Dict:
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data = await self.pre_request_data(data)
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json_str = json.dumps(data, separators=(',', ':'), ensure_ascii=False)
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return await self.request(method="POST", url=f"{self._host}{uri}",
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data=json_str, headers=self.headers)
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async def pong(self) -> bool:
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"""get a note to check if login state is ok"""
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utils.logger.info("[BilibiliClient.pong] Begin pong bilibili...")
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ping_flag = False
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try:
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check_login_uri = "/x/web-interface/nav"
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response = await self.get(check_login_uri)
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if response.get("isLogin"):
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utils.logger.info(
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"[BilibiliClient.pong] Use cache login state get web interface successfull!")
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ping_flag = True
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except Exception as e:
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utils.logger.error(
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f"[BilibiliClient.pong] Pong bilibili failed: {e}, and try to login again...")
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ping_flag = False
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return ping_flag
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async def update_cookies(self, browser_context: BrowserContext):
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cookie_str, cookie_dict = utils.convert_cookies(await browser_context.cookies())
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self.headers["Cookie"] = cookie_str
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self.cookie_dict = cookie_dict
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async def search_video_by_keyword(self, keyword: str, page: int = 1, page_size: int = 20,
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order: SearchOrderType = SearchOrderType.DEFAULT,
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pubtime_begin_s: int = 0, pubtime_end_s: int = 0) -> Dict:
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"""
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KuaiShou web search api
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:param keyword: 搜索关键词
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:param page: 分页参数具体第几页
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:param page_size: 每一页参数的数量
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:param order: 搜索结果排序，默认位综合排序
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:param pubtime_begin_s: 发布时间开始时间戳
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:param pubtime_end_s: 发布时间结束时间戳
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:return:
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"""
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uri = "/x/web-interface/wbi/search/type"
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post_data = {
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"search_type": "video",
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"keyword": keyword,
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"page": page,
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"page_size": page_size,
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"order": order.value,
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"pubtime_begin": pubtime_begin_s,
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"pubtime_end": pubtime_end_s
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}
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return await self.get(uri, post_data)
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async def get_video_info(self, aid: Union[int, None] = None, bvid: Union[str, None] = None) -> Dict:
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"""
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Bilibli web video detail api, aid 和 bvid任选一个参数
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:param aid: 稿件avid
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:param bvid: 稿件bvid
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:return:
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"""
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if not aid and not bvid:
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raise ValueError("请提供 aid 或 bvid 中的至少一个参数")
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uri = "/x/web-interface/view/detail"
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params = dict()
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if aid:
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params.update({"aid": aid})
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else:
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params.update({"bvid": bvid})
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return await self.get(uri, params, enable_params_sign=False)
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async def get_video_play_url(self, aid: int, cid: int) -> Dict:
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"""
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Bilibli web video play url api
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:param aid: 稿件avid
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:param cid: cid
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:return:
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"""
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if not aid or not cid or aid <= 0 or cid <= 0:
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raise ValueError("aid 和 cid 必须存在")
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uri = "/x/player/wbi/playurl"
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params = {
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"avid": aid,
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"cid": cid,
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"qn": 80,
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"fourk": 1,
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"fnval": 1,
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"platform": "pc",
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}
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return await self.get(uri, params, enable_params_sign=True)
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async def get_video_media(self, url: str) -> Union[bytes, None]:
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async with httpx.AsyncClient(proxies=self.proxies) as client:
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response = await client.request("GET", url, timeout=self.timeout, headers=self.headers)
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if not response.reason_phrase == "OK":
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utils.logger.error(f"[BilibiliClient.get_video_media] request {url} err, res:{response.text}")
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return None
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else:
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return response.content
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async def get_video_comments(self,
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video_id: str,
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order_mode: CommentOrderType = CommentOrderType.DEFAULT,
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next: int = 0
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) -> Dict:
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"""get video comments
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:param video_id: 视频 ID
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:param order_mode: 排序方式
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:param next: 评论页选择
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:return:
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"""
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uri = "/x/v2/reply/wbi/main"
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post_data = {
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"oid": video_id,
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"mode": order_mode.value,
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"type": 1,
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"ps": 20,
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"next": next
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}
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return await self.get(uri, post_data)
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async def get_video_all_comments(self, video_id: str, crawl_interval: float = 1.0, is_fetch_sub_comments=False,
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callback: Optional[Callable] = None,
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max_count: int = 10,):
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"""
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get video all comments include sub comments
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:param video_id:
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:param crawl_interval:
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:param is_fetch_sub_comments:
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:param callback:
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max_count: 一次笔记爬取的最大评论数量
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:return:
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"""
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result = []
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is_end = False
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next_page = 0
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while not is_end and len(result) < max_count:
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comments_res = await self.get_video_comments(video_id, CommentOrderType.DEFAULT, next_page)
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cursor_info: Dict = comments_res.get("cursor")
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comment_list: List[Dict] = comments_res.get("replies", [])
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is_end = cursor_info.get("is_end")
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next_page = cursor_info.get("next")
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if is_fetch_sub_comments:
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for comment in comment_list:
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comment_id = comment['rpid']
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if (comment.get("rcount", 0) > 0):
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{
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await self.get_video_all_level_two_comments(
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video_id, comment_id, CommentOrderType.DEFAULT, 10, crawl_interval, callback)
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}
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if len(result) + len(comment_list) > max_count:
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comment_list = comment_list[:max_count - len(result)]
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if callback: # 如果有回调函数，就执行回调函数
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await callback(video_id, comment_list)
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await asyncio.sleep(crawl_interval)
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if not is_fetch_sub_comments:
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result.extend(comment_list)
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continue
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return result
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async def get_video_all_level_two_comments(self,
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video_id: str,
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level_one_comment_id: int,
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order_mode: CommentOrderType,
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ps: int = 10,
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crawl_interval: float = 1.0,
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callback: Optional[Callable] = None,
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) -> Dict:
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"""
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get video all level two comments for a level one comment
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:param video_id: 视频 ID
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:param level_one_comment_id: 一级评论 ID
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:param order_mode:
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:param ps: 一页评论数
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:param crawl_interval:
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:param callback:
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:return:
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"""
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pn = 1
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while True:
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result = await self.get_video_level_two_comments(
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video_id, level_one_comment_id, pn, ps, order_mode)
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comment_list: List[Dict] = result.get("replies", [])
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if callback: # 如果有回调函数，就执行回调函数
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await callback(video_id, comment_list)
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await asyncio.sleep(crawl_interval)
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if (int(result["page"]["count"]) <= pn * ps):
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break
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pn += 1
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async def get_video_level_two_comments(self,
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video_id: str,
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level_one_comment_id: int,
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pn: int,
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ps: int,
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order_mode: CommentOrderType,
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) -> Dict:
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"""get video level two comments
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:param video_id: 视频 ID
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:param level_one_comment_id: 一级评论 ID
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:param order_mode: 排序方式
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:return:
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"""
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uri = "/x/v2/reply/reply"
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post_data = {
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"oid": video_id,
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"mode": order_mode.value,
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"type": 1,
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"ps": ps,
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"pn": pn,
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"root": level_one_comment_id,
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}
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result = await self.get(uri, post_data)
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return result
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async def get_creator_videos(self, creator_id: str, pn: int, ps: int = 30, order_mode: SearchOrderType = SearchOrderType.LAST_PUBLISH) -> Dict:
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"""get all videos for a creator
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:param creator_id: 创作者 ID
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:param pn: 页数
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:param ps: 一页视频数
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:param order_mode: 排序方式
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:return:
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"""
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uri = "/x/space/wbi/arc/search"
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post_data = {
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"mid": creator_id,
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"pn": pn,
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"ps": ps,
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"order": order_mode,
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}
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return await self.get(uri, post_data)
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