import asyncio import os import random from asyncio import Task from typing import Dict, List, Optional, Tuple from playwright.async_api import (BrowserContext, BrowserType, Page, async_playwright) import config from base.base_crawler import AbstractCrawler from models import xiaohongshu as xhs_model from proxy.proxy_ip_pool import IpInfoModel, create_ip_pool from tools import utils from var import crawler_type_var from .client import XHSClient from .exception import DataFetchError from .login import XHSLogin class XiaoHongShuCrawler(AbstractCrawler): platform: str login_type: str crawler_type: str context_page: Page xhs_client: XHSClient browser_context: BrowserContext def __init__(self) -> None: self.index_url = "https://www.xiaohongshu.com" self.user_agent = utils.get_user_agent() def init_config(self, platform: str, login_type: str, crawler_type: str) -> None: self.platform = platform self.login_type = login_type self.crawler_type = crawler_type async def start(self) -> None: 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") # add a cookie attribute webId to avoid the appearance of a sliding captcha on the webpage await self.browser_context.add_cookies([{ 'name': "webId", 'value': "xxx123", # any value 'domain': ".xiaohongshu.com", 'path': "/" }]) 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.xhs_client = await self.create_xhs_client(httpx_proxy_format) if not await self.xhs_client.pong(): login_obj = XHSLogin( login_type=self.login_type, login_phone="", # input your phone number browser_context=self.browser_context, context_page=self.context_page, cookie_str=config.COOKIES ) await login_obj.begin() await self.xhs_client.update_cookies(browser_context=self.browser_context) crawler_type_var.set(self.crawler_type) if self.crawler_type == "search": # Search for notes and retrieve their comment information. await self.search() elif self.crawler_type == "detail": # Get the information and comments of the specified post await self.get_specified_notes() else: pass utils.logger.info("Xhs Crawler finished ...") async def search(self) -> None: """Search for notes and retrieve their comment information.""" utils.logger.info("Begin search xiaohongshu keywords") xhs_limit_count = 20 # xhs limit page fixed value for keyword in config.KEYWORDS.split(","): utils.logger.info(f"Current search keyword: {keyword}") page = 1 while page * xhs_limit_count <= config.CRAWLER_MAX_NOTES_COUNT: note_id_list: List[str] = [] notes_res = await self.xhs_client.get_note_by_keyword( keyword=keyword, page=page, ) utils.logger.info("Search notes res:", notes_res) semaphore = asyncio.Semaphore(config.MAX_CONCURRENCY_NUM) task_list = [ self.get_note_detail(post_item.get("id"), semaphore) for post_item in notes_res.get("items", {}) if post_item.get('model_type') not in ('rec_query', 'hot_query') ] note_details = await asyncio.gather(*task_list) for note_detail in note_details: if note_detail is not None: await xhs_model.update_xhs_note(note_detail) note_id_list.append(note_detail.get("note_id")) page += 1 utils.logger.info(f"Note details: {note_details}") await self.batch_get_note_comments(note_id_list) async def get_specified_notes(self): """Get the information and comments of the specified post""" semaphore = asyncio.Semaphore(config.MAX_CONCURRENCY_NUM) task_list = [ self.get_note_detail(note_id=note_id, semaphore=semaphore) for note_id in config.XHS_SPECIFIED_ID_LIST ] note_details = await asyncio.gather(*task_list) for note_detail in note_details: if note_detail is not None: await xhs_model.update_xhs_note(note_detail) await self.batch_get_note_comments(config.XHS_SPECIFIED_ID_LIST) async def get_note_detail(self, note_id: str, semaphore: asyncio.Semaphore) -> Optional[Dict]: """Get note detail""" async with semaphore: try: return await self.xhs_client.get_note_by_id(note_id) except DataFetchError as ex: utils.logger.error(f"Get note detail error: {ex}") return None except KeyError as ex: utils.logger.error(f"have not fund note detail note_id:{note_id}, err: {ex}") return None async def batch_get_note_comments(self, note_list: List[str]): """Batch get note comments""" utils.logger.info(f"Begin batch get note comments, note list: {note_list}") semaphore = asyncio.Semaphore(config.MAX_CONCURRENCY_NUM) task_list: List[Task] = [] for note_id in note_list: task = asyncio.create_task(self.get_comments(note_id, semaphore), name=note_id) task_list.append(task) await asyncio.gather(*task_list) async def get_comments(self, note_id: str, semaphore: asyncio.Semaphore): """Get note comments with keyword filtering and quantity limitation""" async with semaphore: utils.logger.info(f"Begin get note id comments {note_id}") all_comments = await self.xhs_client.get_note_all_comments(note_id=note_id, crawl_interval=random.random()) # 从配置文件中读取关键词和数量限制 keywords = getattr(config, 'COMMENT_KEYWORDS', []) max_comments = getattr(config, 'MAX_COMMENTS_PER_POST', 0) # 过滤评论 filtered_comments = [] for comment in all_comments: # 检查评论内容是否包含关键词 if not keywords or any(keyword in comment['content'] for keyword in keywords): filtered_comments.append(comment) # 如果达到最大评论数量限制，则停止添加更多评论 if max_comments and len(filtered_comments) >= max_comments: break # 更新或保存过滤后的评论 for comment in filtered_comments: await xhs_model.update_xhs_note_comment(note_id=note_id, comment_item=comment) @staticmethod def format_proxy_info(ip_proxy_info: IpInfoModel) -> Tuple[Optional[Dict], Optional[Dict]]: """format proxy info for playwright and httpx""" 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}{ip_proxy_info.ip}":f"{ip_proxy_info.protocol}{ip_proxy_info.user}:{ip_proxy_info.password}@{ip_proxy_info.ip}:{ip_proxy_info.port}" } return playwright_proxy, httpx_proxy async def create_xhs_client(self, httpx_proxy: Optional[str]) -> XHSClient: """Create xhs client""" utils.logger.info("Begin create xiaohongshu API client ...") cookie_str, cookie_dict = utils.convert_cookies(await self.browser_context.cookies()) xhs_client_obj = XHSClient( proxies=httpx_proxy, headers={ "User-Agent": self.user_agent, "Cookie": cookie_str, "Origin": "https://www.xiaohongshu.com", "Referer": "https://www.xiaohongshu.com", "Content-Type": "application/json;charset=UTF-8" }, playwright_page=self.context_page, cookie_dict=cookie_dict, ) return xhs_client_obj 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""" utils.logger.info("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 % self.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: browser = await chromium.launch(headless=headless, proxy=playwright_proxy) # type: ignore browser_context = await browser.new_context( viewport={"width": 1920, "height": 1080}, user_agent=user_agent ) return browser_context async def close(self): """Close browser context""" await self.browser_context.close() utils.logger.info("Browser context closed ...")