import os import asyncio from asyncio import Task from argparse import Namespace from typing import Optional, List, Dict, Tuple from playwright.async_api import async_playwright from playwright.async_api import BrowserType from playwright.async_api import BrowserContext from playwright.async_api import Page import config from tools import utils from .client import DOUYINClient from .exception import DataFetchError from .login import DouYinLogin from base.base_crawler import AbstractCrawler from base.proxy_account_pool import AccountPool from models import douyin class DouYinCrawler(AbstractCrawler): dy_client: DOUYINClient def __init__(self) -> None: self.browser_context: Optional[BrowserContext] = None # type: ignore self.context_page: Optional[Page] = None # type: ignore self.user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36" # fixed self.index_url = "https://www.douyin.com" self.command_args: Optional[Namespace] = None # type: ignore self.account_pool: Optional[AccountPool] = None # type: ignore def init_config(self, **kwargs): for key, value in kwargs.items(): setattr(self, key, value) async def start(self) -> None: 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(self.index_url) self.dy_client = await self.create_douyin_client(httpx_proxy) if not await self.dy_client.ping(browser_context=self.browser_context): login_obj = DouYinLogin( login_type=self.command_args.lt, # type: ignore login_phone=account_phone, 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) # search_posts await self.search_posts() utils.logger.info("Douyin Crawler finished ...") async def search_posts(self) -> None: utils.logger.info("Begin search douyin keywords") for keyword in config.KEYWORDS.split(","): utils.logger.info(f"Current keyword: {keyword}") aweme_list: List[str] = [] max_note_len = config.MAX_PAGE_NUM page = 0 while max_note_len > 0: try: posts_res = await self.dy_client.search_info_by_keyword(keyword=keyword, offset=page * 10) except DataFetchError: utils.logger.error(f"search douyin keyword: {keyword} failed") break page += 1 max_note_len -= 10 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.update_douyin_aweme(aweme_item=aweme_info) utils.logger.info(f"keyword:{keyword}, aweme_list:{aweme_list}") await self.batch_get_note_comments(aweme_list) async def batch_get_note_comments(self, aweme_list: List[str]): 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) await asyncio.wait(task_list) async def get_comments(self, aweme_id: str, semaphore: "asyncio.Semaphore"): async with semaphore: try: await self.dy_client.get_aweme_all_comments( aweme_id=aweme_id, callback=douyin.batch_update_dy_aweme_comments ) utils.logger.info(f"aweme_id: {aweme_id} comments have all been obtained completed ...") except DataFetchError as e: utils.logger.error(f"aweme_id: {aweme_id} get comments failed, error: {e}") def create_proxy_info(self) -> Tuple[Optional[str], Optional[Dict], Optional[str]]: """Create proxy info for playwright and httpx""" if not config.ENABLE_IP_PROXY: return None, None, None # phone: 13012345671 ip_proxy: 111.122.xx.xx1:8888 phone, ip_proxy = self.account_pool.get_account() # type: ignore 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_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": self.user_agent, "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 % self.command_args.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): """Close browser context""" await self.browser_context.close() utils.logger.info("Browser context closed ...")