import asyncio import os import random from asyncio import Task from typing import Any, Dict, List, Optional, Tuple 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 douyin as douyin_store from tools import utils from var import crawler_type_var, source_keyword_var from .client import DOUYINClient from .exception import DataFetchError from .field import PublishTimeType from .login import DouYinLogin class DouYinCrawler(AbstractCrawler): context_page: Page dy_client: DOUYINClient browser_context: BrowserContext def __init__(self) -> None: self.index_url = "https://www.douyin.com" 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, user_agent=None, 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) self.dy_client = await self.create_douyin_client(httpx_proxy_format) if not await self.dy_client.pong(browser_context=self.browser_context): login_obj = DouYinLogin( login_type=config.LOGIN_TYPE, login_phone="", # you phone number browser_context=self.browser_context, context_page=self.context_page, cookie_str=config.COOKIES ) await login_obj.begin() await self.dy_client.update_cookies(browser_context=self.browser_context) crawler_type_var.set(config.CRAWLER_TYPE) if config.CRAWLER_TYPE == "search": # Search for notes 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_awemes() elif config.CRAWLER_TYPE == "creator": # Get the information and comments of the specified creator await self.get_creators_and_videos() utils.logger.info("[DouYinCrawler.start] Douyin Crawler finished ...") async def search(self) -> None: utils.logger.info("[DouYinCrawler.search] Begin search douyin keywords") dy_limit_count = 10 # douyin limit page fixed value if config.CRAWLER_MAX_NOTES_COUNT < dy_limit_count: config.CRAWLER_MAX_NOTES_COUNT = dy_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"[DouYinCrawler.search] Current keyword: {keyword}") aweme_list: List[str] = [] page = 0 dy_search_id = "" while (page - start_page + 1) * dy_limit_count <= config.CRAWLER_MAX_NOTES_COUNT: if page < start_page: utils.logger.info(f"[DouYinCrawler.search] Skip {page}") page += 1 continue try: utils.logger.info(f"[DouYinCrawler.search] search douyin keyword: {keyword}, page: {page}") posts_res = await self.dy_client.search_info_by_keyword(keyword=keyword, offset=page * dy_limit_count - dy_limit_count, publish_time=PublishTimeType(config.PUBLISH_TIME_TYPE), search_id=dy_search_id ) except DataFetchError: utils.logger.error(f"[DouYinCrawler.search] search douyin keyword: {keyword} failed") break page += 1 if "data" not in posts_res: utils.logger.error( f"[DouYinCrawler.search] search douyin keyword: {keyword} failed，账号也许被风控了。") break dy_search_id = posts_res.get("extra", {}).get("logid", "") for post_item in posts_res.get("data"): try: aweme_info: Dict = post_item.get("aweme_info") or \ post_item.get("aweme_mix_info", {}).get("mix_items")[0] except TypeError: continue aweme_list.append(aweme_info.get("aweme_id", "")) await douyin_store.update_douyin_aweme(aweme_item=aweme_info) utils.logger.info(f"[DouYinCrawler.search] keyword:{keyword}, aweme_list:{aweme_list}") await self.batch_get_note_comments(aweme_list) async def get_specified_awemes(self): """Get the information and comments of the specified post""" semaphore = asyncio.Semaphore(config.MAX_CONCURRENCY_NUM) task_list = [ self.get_aweme_detail(aweme_id=aweme_id, semaphore=semaphore) for aweme_id in config.DY_SPECIFIED_ID_LIST ] aweme_details = await asyncio.gather(*task_list) for aweme_detail in aweme_details: if aweme_detail is not None: await douyin_store.update_douyin_aweme(aweme_detail) await self.batch_get_note_comments(config.DY_SPECIFIED_ID_LIST) async def get_aweme_detail(self, aweme_id: str, semaphore: asyncio.Semaphore) -> Any: """Get note detail""" async with semaphore: try: return await self.dy_client.get_video_by_id(aweme_id) except DataFetchError as ex: utils.logger.error(f"[DouYinCrawler.get_aweme_detail] Get aweme detail error: {ex}") return None except KeyError as ex: utils.logger.error( f"[DouYinCrawler.get_aweme_detail] have not fund note detail aweme_id:{aweme_id}, err: {ex}") return None async def batch_get_note_comments(self, aweme_list: List[str]) -> None: """ Batch get note comments """ if not config.ENABLE_GET_COMMENTS: utils.logger.info(f"[DouYinCrawler.batch_get_note_comments] Crawling comment mode is not enabled") return task_list: List[Task] = [] semaphore = asyncio.Semaphore(config.MAX_CONCURRENCY_NUM) for aweme_id in aweme_list: task = asyncio.create_task( self.get_comments(aweme_id, semaphore), name=aweme_id) task_list.append(task) if len(task_list) > 0: await asyncio.wait(task_list) async def get_comments(self, aweme_id: str, semaphore: asyncio.Semaphore) -> None: async with semaphore: try: # 将关键词列表传递给 get_aweme_all_comments 方法 await self.dy_client.get_aweme_all_comments( aweme_id=aweme_id, crawl_interval=random.random(), is_fetch_sub_comments=config.ENABLE_GET_SUB_COMMENTS, callback=douyin_store.batch_update_dy_aweme_comments ) utils.logger.info( f"[DouYinCrawler.get_comments] aweme_id: {aweme_id} comments have all been obtained and filtered ...") except DataFetchError as e: utils.logger.error(f"[DouYinCrawler.get_comments] aweme_id: {aweme_id} get comments failed, error: {e}") async def get_creators_and_videos(self) -> None: """ Get the information and videos of the specified creator """ utils.logger.info("[DouYinCrawler.get_creators_and_videos] Begin get douyin creators") for user_id in config.DY_CREATOR_ID_LIST: creator_info: Dict = await self.dy_client.get_user_info(user_id) if creator_info: await douyin_store.save_creator(user_id, creator=creator_info) # Get all video information of the creator all_video_list = await self.dy_client.get_all_user_aweme_posts( sec_user_id=user_id, callback=self.fetch_creator_video_detail ) video_ids = [video_item.get("aweme_id") for video_item in all_video_list] await self.batch_get_note_comments(video_ids) async def fetch_creator_video_detail(self, video_list: List[Dict]): """ Concurrently obtain the specified post list and save the data """ semaphore = asyncio.Semaphore(config.MAX_CONCURRENCY_NUM) task_list = [ self.get_aweme_detail(post_item.get("aweme_id"), semaphore) for post_item in video_list ] note_details = await asyncio.gather(*task_list) for aweme_item in note_details: if aweme_item is not None: await douyin_store.update_douyin_aweme(aweme_item) @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}": 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 create_douyin_client(self, httpx_proxy: Optional[str]) -> DOUYINClient: """Create douyin client""" cookie_str, cookie_dict = utils.convert_cookies(await self.browser_context.cookies()) # type: ignore douyin_client = DOUYINClient( proxies=httpx_proxy, headers={ "User-Agent": await self.context_page.evaluate("() => navigator.userAgent"), "Cookie": cookie_str, "Host": "www.douyin.com", "Origin": "https://www.douyin.com/", "Referer": "https://www.douyin.com/", "Content-Type": "application/json;charset=UTF-8" }, playwright_page=self.context_page, cookie_dict=cookie_dict, ) return douyin_client 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""" if config.SAVE_LOGIN_STATE: 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 ) # type: ignore 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) -> None: """Close browser context""" await self.browser_context.close() utils.logger.info("[DouYinCrawler.close] Browser context closed ...")