302 lines
14 KiB
Python
302 lines
14 KiB
Python
# 声明：本代码仅供学习和研究目的使用。使用者应遵守以下原则：
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# 1. 不得用于任何商业用途。
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# 2. 使用时应遵守目标平台的使用条款和robots.txt规则。
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# 3. 不得进行大规模爬取或对平台造成运营干扰。
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# 4. 应合理控制请求频率，避免给目标平台带来不必要的负担。
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# 5. 不得用于任何非法或不当的用途。
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#
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# 详细许可条款请参阅项目根目录下的LICENSE文件。
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# 使用本代码即表示您同意遵守上述原则和LICENSE中的所有条款。
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import asyncio
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import os
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import random
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import time
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from asyncio import Task
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from typing import Dict, List, Optional, Tuple
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from playwright.async_api import (BrowserContext, BrowserType, Page,
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async_playwright)
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import config
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from base.base_crawler import AbstractCrawler
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from proxy.proxy_ip_pool import IpInfoModel, create_ip_pool
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from store import kuaishou as kuaishou_store
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from tools import utils
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from var import comment_tasks_var, crawler_type_var, source_keyword_var
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from .client import KuaiShouClient
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from .exception import DataFetchError
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from .login import KuaishouLogin
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class KuaishouCrawler(AbstractCrawler):
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context_page: Page
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ks_client: KuaiShouClient
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browser_context: BrowserContext
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def __init__(self):
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self.index_url = "https://www.kuaishou.com"
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self.user_agent = utils.get_user_agent()
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async def start(self):
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playwright_proxy_format, httpx_proxy_format = None, None
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if config.ENABLE_IP_PROXY:
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ip_proxy_pool = await create_ip_pool(config.IP_PROXY_POOL_COUNT, enable_validate_ip=True)
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ip_proxy_info: IpInfoModel = await ip_proxy_pool.get_proxy()
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playwright_proxy_format, httpx_proxy_format = self.format_proxy_info(ip_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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None,
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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(f"{self.index_url}?isHome=1")
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# Create a client to interact with the kuaishou website.
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self.ks_client = await self.create_ks_client(httpx_proxy_format)
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if not await self.ks_client.pong():
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login_obj = KuaishouLogin(
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login_type=config.LOGIN_TYPE,
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login_phone=httpx_proxy_format,
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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.ks_client.update_cookies(browser_context=self.browser_context)
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crawler_type_var.set(config.CRAWLER_TYPE)
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if config.CRAWLER_TYPE == "search":
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# Search for videos and retrieve their comment information.
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await self.search()
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elif config.CRAWLER_TYPE == "detail":
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# Get the information and comments of the specified post
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await self.get_specified_videos()
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elif config.CRAWLER_TYPE == "creator":
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# Get creator's information and their videos and comments
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await self.get_creators_and_videos()
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else:
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pass
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utils.logger.info("[KuaishouCrawler.start] Kuaishou Crawler finished ...")
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async def search(self):
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utils.logger.info("[KuaishouCrawler.search] Begin search kuaishou keywords")
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ks_limit_count = 20 # kuaishou limit page fixed value
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if config.CRAWLER_MAX_NOTES_COUNT < ks_limit_count:
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config.CRAWLER_MAX_NOTES_COUNT = ks_limit_count
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start_page = config.START_PAGE
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for keyword in config.KEYWORDS.split(","):
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source_keyword_var.set(keyword)
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utils.logger.info(f"[KuaishouCrawler.search] Current search keyword: {keyword}")
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page = 1
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while (page - start_page + 1) * ks_limit_count <= config.CRAWLER_MAX_NOTES_COUNT:
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if page < start_page:
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utils.logger.info(f"[KuaishouCrawler.search] Skip page: {page}")
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page += 1
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continue
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utils.logger.info(f"[KuaishouCrawler.search] search kuaishou keyword: {keyword}, page: {page}")
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video_id_list: List[str] = []
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videos_res = await self.ks_client.search_info_by_keyword(
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keyword=keyword,
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pcursor=str(page),
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)
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if not videos_res:
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utils.logger.error(f"[KuaishouCrawler.search] search info by keyword:{keyword} not found data")
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continue
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vision_search_photo: Dict = videos_res.get("visionSearchPhoto")
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if vision_search_photo.get("result") != 1:
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utils.logger.error(f"[KuaishouCrawler.search] search info by keyword:{keyword} not found data ")
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continue
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for video_detail in vision_search_photo.get("feeds"):
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video_id_list.append(video_detail.get("photo", {}).get("id"))
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await kuaishou_store.update_kuaishou_video(video_item=video_detail)
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# batch fetch video comments
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page += 1
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await self.batch_get_video_comments(video_id_list)
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async def get_specified_videos(self):
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"""Get the information and comments of the specified post"""
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semaphore = asyncio.Semaphore(config.MAX_CONCURRENCY_NUM)
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task_list = [
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self.get_video_info_task(video_id=video_id, semaphore=semaphore) for video_id in config.KS_SPECIFIED_ID_LIST
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]
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video_details = await asyncio.gather(*task_list)
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for video_detail in video_details:
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if video_detail is not None:
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await kuaishou_store.update_kuaishou_video(video_detail)
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await self.batch_get_video_comments(config.KS_SPECIFIED_ID_LIST)
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async def get_video_info_task(self, video_id: str, semaphore: asyncio.Semaphore) -> Optional[Dict]:
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"""Get video detail task"""
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async with semaphore:
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try:
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result = await self.ks_client.get_video_info(video_id)
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utils.logger.info(f"[KuaishouCrawler.get_video_info_task] Get video_id:{video_id} info result: {result} ...")
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return result.get("visionVideoDetail")
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except DataFetchError as ex:
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utils.logger.error(f"[KuaishouCrawler.get_video_info_task] Get video detail error: {ex}")
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return None
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except KeyError as ex:
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utils.logger.error(f"[KuaishouCrawler.get_video_info_task] have not fund video detail video_id:{video_id}, err: {ex}")
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return None
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async def batch_get_video_comments(self, video_id_list: List[str]):
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"""
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batch get video comments
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:param video_id_list:
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:return:
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"""
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if not config.ENABLE_GET_COMMENTS:
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utils.logger.info(f"[KuaishouCrawler.batch_get_video_comments] Crawling comment mode is not enabled")
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return
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utils.logger.info(f"[KuaishouCrawler.batch_get_video_comments] video ids:{video_id_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 video_id in video_id_list:
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task = asyncio.create_task(self.get_comments(video_id, semaphore), name=video_id)
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task_list.append(task)
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comment_tasks_var.set(task_list)
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await asyncio.gather(*task_list)
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async def get_comments(self, video_id: str, semaphore: asyncio.Semaphore):
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"""
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get comment for video id
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:param video_id:
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:param semaphore:
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:return:
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"""
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async with semaphore:
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try:
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utils.logger.info(f"[KuaishouCrawler.get_comments] begin get video_id: {video_id} comments ...")
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await self.ks_client.get_video_all_comments(
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photo_id=video_id,
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crawl_interval=random.random(),
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callback=kuaishou_store.batch_update_ks_video_comments,
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max_count=config.CRAWLER_MAX_COMMENTS_COUNT_SINGLENOTES
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)
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except DataFetchError as ex:
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utils.logger.error(f"[KuaishouCrawler.get_comments] get video_id: {video_id} comment error: {ex}")
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except Exception as e:
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utils.logger.error(f"[KuaishouCrawler.get_comments] may be been blocked, err:{e}")
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# use time.sleeep block main coroutine instead of asyncio.sleep and cacel running comment task
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# maybe kuaishou block our request, we will take a nap and update the cookie again
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current_running_tasks = comment_tasks_var.get()
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for task in current_running_tasks:
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task.cancel()
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time.sleep(20)
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await self.context_page.goto(f"{self.index_url}?isHome=1")
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await self.ks_client.update_cookies(browser_context=self.browser_context)
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@staticmethod
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def format_proxy_info(ip_proxy_info: IpInfoModel) -> Tuple[Optional[Dict], Optional[Dict]]:
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"""format proxy info for playwright and httpx"""
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playwright_proxy = {
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"server": f"{ip_proxy_info.protocol}{ip_proxy_info.ip}:{ip_proxy_info.port}",
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"username": ip_proxy_info.user,
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"password": ip_proxy_info.password,
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}
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httpx_proxy = {
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f"{ip_proxy_info.protocol}": f"http://{ip_proxy_info.user}:{ip_proxy_info.password}@{ip_proxy_info.ip}:{ip_proxy_info.port}"
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}
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return playwright_proxy, httpx_proxy
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async def create_ks_client(self, httpx_proxy: Optional[str]) -> KuaiShouClient:
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"""Create ks client"""
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utils.logger.info("[KuaishouCrawler.create_ks_client] Begin create kuaishou API client ...")
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cookie_str, cookie_dict = utils.convert_cookies(await self.browser_context.cookies())
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ks_client_obj = KuaiShouClient(
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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": self.index_url,
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"Referer": self.index_url,
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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 ks_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("[KuaishouCrawler.launch_browser] Begin create browser context ...")
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if config.SAVE_LOGIN_STATE:
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user_data_dir = os.path.join(os.getcwd(), "browser_data",
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config.USER_DATA_DIR % config.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 get_creators_and_videos(self) -> None:
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"""Get creator's videos and retrieve their comment information."""
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utils.logger.info("[KuaiShouCrawler.get_creators_and_videos] Begin get kuaishou creators")
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for user_id in config.KS_CREATOR_ID_LIST:
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# get creator detail info from web html content
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createor_info: Dict = await self.ks_client.get_creator_info(user_id=user_id)
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if createor_info:
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await kuaishou_store.save_creator(user_id, creator=createor_info)
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# Get all video information of the creator
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all_video_list = await self.ks_client.get_all_videos_by_creator(
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user_id = user_id,
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crawl_interval = random.random(),
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callback = self.fetch_creator_video_detail
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)
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video_ids = [video_item.get("photo", {}).get("id") for video_item in all_video_list]
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await self.batch_get_video_comments(video_ids)
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async def fetch_creator_video_detail(self, video_list: List[Dict]):
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"""
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Concurrently obtain the specified post list and save the data
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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_video_info_task(post_item.get("photo", {}).get("id"), semaphore) for post_item in video_list
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]
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video_details = await asyncio.gather(*task_list)
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for video_detail in video_details:
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if video_detail is not None:
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await kuaishou_store.update_kuaishou_video(video_detail)
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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("[KuaishouCrawler.close] Browser context closed ...")
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