import asyncio import os import random import time 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 kuaishou from proxy.proxy_account_pool import AccountPool from tools import utils from var import comment_tasks_var, crawler_type_var from .client import KuaiShouClient from .exception import DataFetchError from .login import KuaishouLogin class KuaishouCrawler(AbstractCrawler): platform: str login_type: str crawler_type: str context_page: Page ks_client: KuaiShouClient account_pool: AccountPool browser_context: BrowserContext def __init__(self): self.index_url = "https://www.kuaishou.com" self.user_agent = utils.get_user_agent() def init_config(self, platform: str, login_type: str, account_pool: AccountPool, crawler_type: str): self.platform = platform self.login_type = login_type self.account_pool = account_pool self.crawler_type = crawler_type async def start(self): account_phone, playwright_proxy, httpx_proxy = self.create_proxy_info() async with async_playwright() as playwright: # Launch a browser context. chromium = playwright.chromium self.browser_context = await self.launch_browser( chromium, playwright_proxy, 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(f"{self.index_url}?isHome=1") # Create a client to interact with the kuaishou website. self.ks_client = await self.create_ks_client(httpx_proxy) if not await self.ks_client.pong(): login_obj = KuaishouLogin( login_type=self.login_type, login_phone=account_phone, browser_context=self.browser_context, context_page=self.context_page, cookie_str=config.COOKIES ) await login_obj.begin() await self.ks_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_videos() else: pass utils.logger.info("Kuaishou Crawler finished ...") async def search(self): utils.logger.info("Begin search kuaishou keywords") ks_limit_count = 20 # kuaishou limit page fixed value for keyword in config.KEYWORDS.split(","): utils.logger.info(f"Current search keyword: {keyword}") page = 1 while page * ks_limit_count <= config.CRAWLER_MAX_NOTES_COUNT: video_id_list: List[str] = [] videos_res = await self.ks_client.search_info_by_keyword( keyword=keyword, pcursor=str(page), ) if not videos_res: utils.logger.error(f"search info by keyword:{keyword} not found data") continue vision_search_photo: Dict = videos_res.get("visionSearchPhoto") if vision_search_photo.get("result") != 1: utils.logger.error(f"search info by keyword:{keyword} not found data ") continue for video_detail in vision_search_photo.get("feeds"): video_id_list.append(video_detail.get("photo", {}).get("id")) await kuaishou.update_kuaishou_video(video_item=video_detail) # batch fetch video comments page += 1 await self.batch_get_video_comments(video_id_list) async def get_specified_videos(self): """Get the information and comments of the specified post""" semaphore = asyncio.Semaphore(config.MAX_CONCURRENCY_NUM) task_list = [ self.get_video_info_task(video_id=video_id, semaphore=semaphore) for video_id in config.KS_SPECIFIED_ID_LIST ] video_details = await asyncio.gather(*task_list) for video_detail in video_details: if video_detail is not None: await kuaishou.update_kuaishou_video(video_detail) await self.batch_get_video_comments(config.KS_SPECIFIED_ID_LIST) async def get_video_info_task(self, video_id: str, semaphore: asyncio.Semaphore) -> Optional[Dict]: """Get video detail task""" async with semaphore: try: result = await self.ks_client.get_video_info(video_id) utils.logger.info(f"Get video_id:{video_id} info result: {result} ...") return result.get("visionVideoDetail") except DataFetchError as ex: utils.logger.error(f"Get video detail error: {ex}") return None except KeyError as ex: utils.logger.error(f"have not fund note detail video_id:{video_id}, err: {ex}") return None async def batch_get_video_comments(self, video_id_list: List[str]): """ batch get video comments :param video_id_list: :return: """ utils.logger.info(f"[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) comment_tasks_var.set(task_list) 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"[get_comments] bengin get video_id: {video_id} comments ...") await self.ks_client.get_video_all_comments( photo_id=video_id, crawl_interval=random.random(), callback=kuaishou.batch_update_ks_video_comments ) except DataFetchError as ex: utils.logger.error(f"[get_comments] get video_id: {video_id} comment error: {ex}") except Exception as e: utils.logger.error(f"[get_comments] may be been blocked, err:", e) # use time.sleeep block main coroutine instead of asyncio.sleep and cacel running comment task # maybe kuaishou block our request, we will take a nap and update the cookie again current_running_tasks = comment_tasks_var.get() for task in current_running_tasks: task.cancel() time.sleep(20) await self.context_page.goto(f"{self.index_url}?isHome=1") await self.ks_client.update_cookies(browser_context=self.browser_context) def create_proxy_info(self) -> Tuple[Optional[str], Optional[Dict], Optional[str]]: """Create proxy info for playwright and httpx""" # phone: 13012345671 ip_proxy: 111.122.xx.xx1:8888 phone, ip_proxy = self.account_pool.get_account() if not config.ENABLE_IP_PROXY: return phone, None, None utils.logger.info("Begin proxy info for playwright and httpx ...") playwright_proxy = { "server": f"{config.IP_PROXY_PROTOCOL}{ip_proxy}", "username": config.IP_PROXY_USER, "password": config.IP_PROXY_PASSWORD, } httpx_proxy = f"{config.IP_PROXY_PROTOCOL}{config.IP_PROXY_USER}:{config.IP_PROXY_PASSWORD}@{ip_proxy}" return phone, playwright_proxy, httpx_proxy async def create_ks_client(self, httpx_proxy: Optional[str]) -> KuaiShouClient: """Create xhs client""" utils.logger.info("Begin create kuaishou API client ...") cookie_str, cookie_dict = utils.convert_cookies(await self.browser_context.cookies()) xhs_client_obj = KuaiShouClient( proxies=httpx_proxy, headers={ "User-Agent": self.user_agent, "Cookie": cookie_str, "Origin": self.index_url, "Referer": self.index_url, "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: 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 ...")