# 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： # 1. 不得用于任何商业用途。 # 2. 使用时应遵守目标平台的使用条款和robots.txt规则。 # 3. 不得进行大规模爬取或对平台造成运营干扰。 # 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。 # 5. 不得用于任何非法或不当的用途。 # # 详细许可条款请参阅项目根目录下的LICENSE文件。 # 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。 # -*- coding: utf-8 -*- # @Author : relakkes@gmail.com # @Time : 2023/12/2 18:44 # @Desc : B站爬虫 import asyncio import os import random from asyncio import Task from typing import Dict, List, Optional, Tuple, Union from playwright.async_api import (BrowserContext, BrowserType, Page, async_playwright) import config from base.base_crawler import AbstractCrawler from proxy.proxy_ip_pool import IpInfoModel, create_ip_pool from store import bilibili as bilibili_store from tools import utils from var import crawler_type_var, source_keyword_var from .client import BilibiliClient from .exception import DataFetchError from .field import SearchOrderType from .login import BilibiliLogin class BilibiliCrawler(AbstractCrawler): context_page: Page bili_client: BilibiliClient browser_context: BrowserContext def __init__(self): self.index_url = "https://www.bilibili.com" self.user_agent = utils.get_user_agent() async def start(self): playwright_proxy_format, httpx_proxy_format = None, None if config.ENABLE_IP_PROXY: ip_proxy_pool = await create_ip_pool(config.IP_PROXY_POOL_COUNT, enable_validate_ip=True) ip_proxy_info: IpInfoModel = await ip_proxy_pool.get_proxy() playwright_proxy_format, httpx_proxy_format = self.format_proxy_info( ip_proxy_info) async with async_playwright() as playwright: # Launch a browser context. chromium = playwright.chromium self.browser_context = await self.launch_browser( chromium, None, self.user_agent, headless=config.HEADLESS ) # stealth.min.js is a js script to prevent the website from detecting the crawler. await self.browser_context.add_init_script(path="libs/stealth.min.js") self.context_page = await self.browser_context.new_page() await self.context_page.goto(self.index_url) # Create a client to interact with the xiaohongshu website. self.bili_client = await self.create_bilibili_client(httpx_proxy_format) if not await self.bili_client.pong(): login_obj = BilibiliLogin( login_type=config.LOGIN_TYPE, login_phone="", # your phone number browser_context=self.browser_context, context_page=self.context_page, cookie_str=config.COOKIES ) await login_obj.begin() await self.bili_client.update_cookies(browser_context=self.browser_context) crawler_type_var.set(config.CRAWLER_TYPE) if config.CRAWLER_TYPE == "search": # Search for video and retrieve their comment information. await self.search() elif config.CRAWLER_TYPE == "detail": # Get the information and comments of the specified post await self.get_specified_videos(config.BILI_SPECIFIED_ID_LIST) elif config.CRAWLER_TYPE == "creator": for creator_id in config.BILI_CREATOR_ID_LIST: await self.get_creator_videos(int(creator_id)) else: pass utils.logger.info( "[BilibiliCrawler.start] Bilibili Crawler finished ...") async def search(self): """ search bilibili video with keywords :return: """ utils.logger.info( "[BilibiliCrawler.search] Begin search bilibli keywords") bili_limit_count = 20 # bilibili limit page fixed value if config.CRAWLER_MAX_NOTES_COUNT < bili_limit_count: config.CRAWLER_MAX_NOTES_COUNT = bili_limit_count start_page = config.START_PAGE # start page number for keyword in config.KEYWORDS.split(","): source_keyword_var.set(keyword) utils.logger.info( f"[BilibiliCrawler.search] Current search keyword: {keyword}") page = 1 while (page - start_page + 1) * bili_limit_count <= config.CRAWLER_MAX_NOTES_COUNT: if page < start_page: utils.logger.info( f"[BilibiliCrawler.search] Skip page: {page}") page += 1 continue utils.logger.info(f"[BilibiliCrawler.search] search bilibili keyword: {keyword}, page: {page}") video_id_list: List[str] = [] videos_res = await self.bili_client.search_video_by_keyword( keyword=keyword, page=page, page_size=bili_limit_count, order=SearchOrderType.DEFAULT, pubtime_begin_s=0, # 作品发布日期起始时间戳 pubtime_end_s=0 # 作品发布日期结束日期时间戳 ) video_list: List[Dict] = videos_res.get("result") semaphore = asyncio.Semaphore(config.MAX_CONCURRENCY_NUM) task_list = [ self.get_video_info_task(aid=video_item.get( "aid"), bvid="", semaphore=semaphore) for video_item in video_list ] video_items = await asyncio.gather(*task_list) for video_item in video_items: if video_item: video_id_list.append(video_item.get("View").get("aid")) await bilibili_store.update_bilibili_video(video_item) await bilibili_store.update_up_info(video_item) await self.get_bilibili_video(video_item, semaphore) page += 1 await self.batch_get_video_comments(video_id_list) async def batch_get_video_comments(self, video_id_list: List[str]): """ batch get video comments :param video_id_list: :return: """ if not config.ENABLE_GET_COMMENTS: utils.logger.info( f"[BilibiliCrawler.batch_get_note_comments] Crawling comment mode is not enabled") return utils.logger.info( f"[BilibiliCrawler.batch_get_video_comments] video ids:{video_id_list}") semaphore = asyncio.Semaphore(config.MAX_CONCURRENCY_NUM) task_list: List[Task] = [] for video_id in video_id_list: task = asyncio.create_task(self.get_comments( video_id, semaphore), name=video_id) task_list.append(task) await asyncio.gather(*task_list) async def get_comments(self, video_id: str, semaphore: asyncio.Semaphore): """ get comment for video id :param video_id: :param semaphore: :return: """ async with semaphore: try: utils.logger.info( f"[BilibiliCrawler.get_comments] begin get video_id: {video_id} comments ...") await self.bili_client.get_video_all_comments( video_id=video_id, crawl_interval=random.random(), is_fetch_sub_comments=config.ENABLE_GET_SUB_COMMENTS, callback=bilibili_store.batch_update_bilibili_video_comments ) except DataFetchError as ex: utils.logger.error( f"[BilibiliCrawler.get_comments] get video_id: {video_id} comment error: {ex}") except Exception as e: utils.logger.error( f"[BilibiliCrawler.get_comments] may be been blocked, err:{e}") async def get_creator_videos(self, creator_id: int): """ get videos for a creator :return: """ ps = 30 pn = 1 video_bvids_list = [] while True: result = await self.bili_client.get_creator_videos(creator_id, pn, ps) for video in result["list"]["vlist"]: video_bvids_list.append(video["bvid"]) if (int(result["page"]["count"]) <= pn * ps): break await asyncio.sleep(random.random()) pn += 1 await self.get_specified_videos(video_bvids_list) async def get_specified_videos(self, bvids_list: List[str]): """ get specified videos info :return: """ semaphore = asyncio.Semaphore(config.MAX_CONCURRENCY_NUM) task_list = [ self.get_video_info_task(aid=0, bvid=video_id, semaphore=semaphore) for video_id in bvids_list ] video_details = await asyncio.gather(*task_list) video_aids_list = [] for video_detail in video_details: if video_detail is not None: video_item_view: Dict = video_detail.get("View") video_aid: str = video_item_view.get("aid") if video_aid: video_aids_list.append(video_aid) await bilibili_store.update_bilibili_video(video_detail) await self.get_bilibili_video(video_detail, semaphore) await self.batch_get_video_comments(video_aids_list) async def get_video_info_task(self, aid: int, bvid: str, semaphore: asyncio.Semaphore) -> Optional[Dict]: """ Get video detail task :param aid: :param bvid: :param semaphore: :return: """ async with semaphore: try: result = await self.bili_client.get_video_info(aid=aid, bvid=bvid) return result except DataFetchError as ex: utils.logger.error( f"[BilibiliCrawler.get_video_info_task] Get video detail error: {ex}") return None except KeyError as ex: utils.logger.error( f"[BilibiliCrawler.get_video_info_task] have not fund note detail video_id:{bvid}, err: {ex}") return None async def get_video_play_url_task(self, aid: int, cid: int, semaphore: asyncio.Semaphore) -> Union[Dict, None]: """ Get video play url :param aid: :param cid: :param semaphore: :return: """ async with semaphore: try: result = await self.bili_client.get_video_play_url(aid=aid, cid=cid) return result except DataFetchError as ex: utils.logger.error( f"[BilibiliCrawler.get_video_play_url_task] Get video play url error: {ex}") return None except KeyError as ex: utils.logger.error( f"[BilibiliCrawler.get_video_play_url_task] have not fund play url from :{aid}|{cid}, err: {ex}") return None async def create_bilibili_client(self, httpx_proxy: Optional[str]) -> BilibiliClient: """ create bilibili client :param httpx_proxy: httpx proxy :return: bilibili client """ utils.logger.info( "[BilibiliCrawler.create_bilibili_client] Begin create bilibili API client ...") cookie_str, cookie_dict = utils.convert_cookies(await self.browser_context.cookies()) bilibili_client_obj = BilibiliClient( proxies=httpx_proxy, headers={ "User-Agent": self.user_agent, "Cookie": cookie_str, "Origin": "https://www.bilibili.com", "Referer": "https://www.bilibili.com", "Content-Type": "application/json;charset=UTF-8" }, playwright_page=self.context_page, cookie_dict=cookie_dict, ) return bilibili_client_obj @staticmethod def format_proxy_info(ip_proxy_info: IpInfoModel) -> Tuple[Optional[Dict], Optional[Dict]]: """ format proxy info for playwright and httpx :param ip_proxy_info: ip proxy info :return: playwright proxy, httpx proxy """ playwright_proxy = { "server": f"{ip_proxy_info.protocol}{ip_proxy_info.ip}:{ip_proxy_info.port}", "username": ip_proxy_info.user, "password": ip_proxy_info.password, } httpx_proxy = { f"{ip_proxy_info.protocol}": f"http://{ip_proxy_info.user}:{ip_proxy_info.password}@{ip_proxy_info.ip}:{ip_proxy_info.port}" } return playwright_proxy, httpx_proxy async def launch_browser( self, chromium: BrowserType, playwright_proxy: Optional[Dict], user_agent: Optional[str], headless: bool = True ) -> BrowserContext: """ launch browser and create browser context :param chromium: chromium browser :param playwright_proxy: playwright proxy :param user_agent: user agent :param headless: headless mode :return: browser context """ utils.logger.info( "[BilibiliCrawler.launch_browser] Begin create browser context ...") if config.SAVE_LOGIN_STATE: # feat issue #14 # we will save login state to avoid login every time user_data_dir = os.path.join(os.getcwd(), "browser_data", config.USER_DATA_DIR % config.PLATFORM) # type: ignore browser_context = await chromium.launch_persistent_context( user_data_dir=user_data_dir, accept_downloads=True, headless=headless, proxy=playwright_proxy, # type: ignore viewport={"width": 1920, "height": 1080}, user_agent=user_agent ) return browser_context else: # type: ignore browser = await chromium.launch(headless=headless, proxy=playwright_proxy) browser_context = await browser.new_context( viewport={"width": 1920, "height": 1080}, user_agent=user_agent ) return browser_context async def get_bilibili_video(self, video_item: Dict, semaphore: asyncio.Semaphore): """ download bilibili video :param video_item: :param semaphore: :return: """ if not config.ENABLE_GET_IMAGES: utils.logger.info(f"[BilibiliCrawler.get_bilibili_video] Crawling image mode is not enabled") return video_item_view: Dict = video_item.get("View") aid = video_item_view.get("aid") cid = video_item_view.get("cid") result = await self.get_video_play_url_task(aid, cid, semaphore) if result is None: utils.logger.info("[BilibiliCrawler.get_bilibili_video] get video play url failed") return durl_list = result.get("durl") max_size = -1 video_url = "" for durl in durl_list: size = durl.get("size") if size > max_size: max_size = size video_url = durl.get("url") if video_url == "": utils.logger.info("[BilibiliCrawler.get_bilibili_video] get video url failed") return content = await self.bili_client.get_video_media(video_url) if content is None: return extension_file_name = f"video.mp4" await bilibili_store.store_video(aid, content, extension_file_name)