Files
nonebot-plugin-tetris-stats/nonebot_plugin_tetris_stats/utils/browser.py
2025-04-28 04:08:55 +08:00

116 lines
4.0 KiB
Python

import sys
from collections.abc import Callable, Coroutine
from os import environ
from platform import system
from re import sub
from typing import Any, ClassVar
from nonebot import get_driver
from nonebot.log import logger
from playwright.__main__ import main
from playwright.async_api import Browser, BrowserContext, async_playwright
from ..config.config import config
driver = get_driver()
global_config = driver.config
@driver.on_startup
async def _():
await BrowserManager.init_playwright()
@driver.on_shutdown
async def _():
await BrowserManager.close_browser()
class BrowserManager:
"""浏览器管理类"""
_browser: Browser | None = None
_contexts: ClassVar[dict[str, BrowserContext]] = {}
@classmethod
async def init_playwright(cls) -> None:
if system() == 'Windows' and getattr(global_config, 'fastapi_reload', False):
msg = '加载失败, Windows 必须设置 FASTAPI_RELOAD=false 才能正常运行 playwright'
raise ImportError(msg)
logger.info('开始 安装/更新 playwright 浏览器')
environ['PLAYWRIGHT_DOWNLOAD_HOST'] = 'https://npmmirror.com/mirrors/playwright/'
if cls._call_playwright(['', 'install', 'firefox']):
logger.success('安装/更新 playwright 浏览器成功')
else:
logger.warning('playwright 浏览器 安装/更新 失败, 尝试使用原始仓库下载')
del environ['PLAYWRIGHT_DOWNLOAD_HOST']
if cls._call_playwright(['', 'install', 'firefox']):
logger.success('安装/更新 playwright 浏览器成功')
else:
logger.error('安装/更新 playwright 浏览器失败')
try:
await cls._start_browser()
except BaseException as e: # 不知道会有什么异常, 交给用户解决
msg = 'playwright 启动失败, 请尝试在命令行运行 playwright install-deps firefox, 如果仍然启动失败, 请参考上面的报错👆'
raise ImportError(msg) from e
else:
logger.success('playwright 启动成功')
@classmethod
def _call_playwright(cls, argv: list[str]) -> bool:
"""等价于调用 playwright 的命令行程序"""
argv_backup = sys.argv.copy()
sys.argv[0] = sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
sys.argv = argv
try:
main()
except SystemExit as e:
return e.code == 0
except BaseException: # noqa: BLE001
return False
finally:
sys.argv = argv_backup
return True
@classmethod
async def _start_browser(cls) -> Browser:
"""启动浏览器实例"""
playwright = await async_playwright().start()
cls._browser = await playwright.firefox.launch(
headless=not config.tetris.development,
firefox_user_prefs={
'network.http.max-persistent-connections-per-server': 64,
},
)
return cls._browser
@classmethod
async def get_browser(cls) -> Browser:
"""获取浏览器实例"""
return cls._browser or await cls._start_browser()
@classmethod
async def get_context(
cls, context_id: str = 'default', factory: Callable[[], Coroutine[Any, Any, BrowserContext]] | None = None
) -> BrowserContext:
"""获取浏览器上下文"""
return cls._contexts.setdefault(
context_id, await factory() if factory is not None else await (await cls.get_browser()).new_context()
)
@classmethod
async def del_context(cls, context_id: str) -> None:
"""删除浏览器上下文"""
if context_id in cls._contexts:
await cls._contexts[context_id].close()
del cls._contexts[context_id]
@classmethod
async def close_browser(cls) -> None:
"""关闭浏览器实例"""
for i in cls._contexts.values():
await i.close()
if isinstance(cls._browser, Browser):
await cls._browser.close()