195 lines
8.1 KiB
Python
195 lines
8.1 KiB
Python
import os
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import random
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import asyncio
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from asyncio import Task
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from typing import Optional, List, Dict, Tuple
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from argparse import Namespace
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from playwright.async_api import Page
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from playwright.async_api import BrowserContext
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from playwright.async_api import async_playwright
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from playwright.async_api import BrowserType
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import config
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from tools import utils
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from .exception import *
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from .login import XHSLogin
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from .client import XHSClient
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from models import xhs as xhs_model
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from base.base_crawler import AbstractCrawler
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from base.proxy_account_pool import AccountPool
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class XiaoHongShuCrawler(AbstractCrawler):
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context_page: Page
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browser_context: BrowserContext
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xhs_client: XHSClient
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account_pool: AccountPool
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def __init__(self):
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self.index_url = "https://www.xiaohongshu.com"
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self.command_args: Optional[Namespace] = None # type: ignore
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self.user_agent = utils.get_user_agent()
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def init_config(self, **kwargs):
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for key, value in kwargs.items():
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setattr(self, key, value)
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async def start(self):
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account_phone, playwright_proxy, httpx_proxy = self.create_proxy_info()
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async with async_playwright() as playwright:
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# Launch a browser context.
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chromium = playwright.chromium
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self.browser_context = await self.launch_browser(
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chromium,
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playwright_proxy,
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self.user_agent,
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headless=config.HEADLESS
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)
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# stealth.min.js is a js script to prevent the website from detecting the crawler.
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await self.browser_context.add_init_script(path="libs/stealth.min.js")
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self.context_page = await self.browser_context.new_page()
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await self.context_page.goto(self.index_url)
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# Create a client to interact with the xiaohongshu website.
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self.xhs_client = await self.create_xhs_client(httpx_proxy)
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if not await self.xhs_client.ping():
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login_obj = XHSLogin(
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login_type=self.command_args.lt,
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login_phone=account_phone,
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browser_context=self.browser_context,
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context_page=self.context_page,
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cookie_str=config.COOKIES
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)
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await login_obj.begin()
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await self.xhs_client.update_cookies(browser_context=self.browser_context)
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# Search for notes and retrieve their comment information.
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await self.search_posts()
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utils.logger.info("Xhs Crawler finished ...")
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async def search_posts(self) -> None:
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"""Search for notes and retrieve their comment information."""
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utils.logger.info("Begin search xiaohongshu keywords")
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for keyword in config.KEYWORDS.split(","):
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utils.logger.info(f"Current keyword: {keyword}")
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max_note_len = config.MAX_PAGE_NUM
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page = 1
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while max_note_len > 0:
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note_id_list: List[str] = []
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posts_res = await self.xhs_client.get_note_by_keyword(
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keyword=keyword,
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page=page,
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)
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_semaphore = asyncio.Semaphore(config.MAX_CONCURRENCY_NUM)
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task_list = [
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self.get_note_detail(post_item.get("id"), _semaphore)
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for post_item in posts_res.get("items", {})
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]
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note_details = await asyncio.gather(*task_list)
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for note_detail in note_details:
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if note_detail is not None:
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await xhs_model.update_xhs_note(note_detail)
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note_id_list.append(note_detail.get("note_id"))
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page += 1
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max_note_len -= 20
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utils.logger.info(f"Note details: {note_details}")
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await self.batch_get_note_comments(note_id_list)
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async def get_note_detail(self, note_id: str, semaphore: "asyncio.Semaphore") -> Optional[Dict]:
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"""Get note detail"""
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async with semaphore:
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try:
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return await self.xhs_client.get_note_by_id(note_id)
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except DataFetchError as ex:
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utils.logger.error(f"Get note detail error: {ex}")
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return None
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async def batch_get_note_comments(self, note_list: List[str]):
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"""Batch get note comments"""
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utils.logger.info(f"Begin batch get note comments, note list: {note_list}")
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_semaphore = asyncio.Semaphore(config.MAX_CONCURRENCY_NUM)
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task_list: List[Task] = []
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for note_id in note_list:
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task = asyncio.create_task(self.get_comments(note_id, _semaphore), name=note_id)
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task_list.append(task)
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await asyncio.gather(*task_list)
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async def get_comments(self, note_id: str, semaphore: "asyncio.Semaphore"):
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"""Get note comments"""
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async with semaphore:
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utils.logger.info(f"Begin get note id comments {note_id}")
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all_comments = await self.xhs_client.get_note_all_comments(note_id=note_id, crawl_interval=random.random())
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for comment in all_comments:
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await xhs_model.update_xhs_note_comment(note_id=note_id, comment_item=comment)
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def create_proxy_info(self) -> Tuple[Optional[str], Optional[Dict], Optional[str]]:
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"""Create proxy info for playwright and httpx"""
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if not config.ENABLE_IP_PROXY:
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return None, None, None
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utils.logger.info("Begin proxy info for playwright and httpx ...")
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# phone: 13012345671 ip_proxy: 111.122.xx.xx1:8888
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phone, ip_proxy = self.account_pool.get_account()
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playwright_proxy = {
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"server": f"{config.IP_PROXY_PROTOCOL}{ip_proxy}",
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"username": config.IP_PROXY_USER,
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"password": config.IP_PROXY_PASSWORD,
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}
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httpx_proxy = f"{config.IP_PROXY_PROTOCOL}{config.IP_PROXY_USER}:{config.IP_PROXY_PASSWORD}@{ip_proxy}"
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return phone, playwright_proxy, httpx_proxy
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async def create_xhs_client(self, httpx_proxy: str) -> XHSClient:
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"""Create xhs client"""
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utils.logger.info("Begin create xiaohongshu API client ...")
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cookie_str, cookie_dict = utils.convert_cookies(await self.browser_context.cookies())
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xhs_client_obj = XHSClient(
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proxies=httpx_proxy,
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headers={
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"User-Agent": self.user_agent,
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"Cookie": cookie_str,
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"Origin": "https://www.xiaohongshu.com",
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"Referer": "https://www.xiaohongshu.com",
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"Content-Type": "application/json;charset=UTF-8"
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},
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playwright_page=self.context_page,
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cookie_dict=cookie_dict,
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)
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return xhs_client_obj
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async def launch_browser(
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self,
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chromium: BrowserType,
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playwright_proxy: Optional[Dict],
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user_agent: Optional[str],
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headless: bool = True
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) -> BrowserContext:
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"""Launch browser and create browser context"""
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utils.logger.info("Begin create browser context ...")
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if config.SAVE_LOGIN_STATE:
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# feat issue #14
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# we will save login state to avoid login every time
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user_data_dir = os.path.join(os.getcwd(), "browser_data", config.USER_DATA_DIR % self.command_args.platform) # type: ignore
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browser_context = await chromium.launch_persistent_context(
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user_data_dir=user_data_dir,
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accept_downloads=True,
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headless=headless,
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proxy=playwright_proxy, # type: ignore
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viewport={"width": 1920, "height": 1080},
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user_agent=user_agent
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)
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return browser_context
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else:
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browser = await chromium.launch(headless=headless, proxy=playwright_proxy) # type: ignore
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browser_context = await browser.new_context(
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viewport={"width": 1920, "height": 1080},
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user_agent=user_agent
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)
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return browser_context
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async def close(self):
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"""Close browser context"""
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await self.browser_context.close()
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utils.logger.info("Browser context closed ...")
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