⚡️ 试图提高截图速度

nonebot_plugin_tetris_stats/utils/browser.py

@@ -1,12 +1,14 @@
 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, async_playwright
+from playwright.async_api import Browser, BrowserContext, async_playwright
 
 driver = get_driver()
 
@@ -27,6 +29,7 @@ class BrowserManager:
     """浏览器管理类"""
 
     _browser: Browser | None = None
+    _contexts: ClassVar[dict[str, BrowserContext]] = {}
 
     @classmethod
     async def init_playwright(cls) -> None:
@@ -72,7 +75,11 @@ class BrowserManager:
     async def _start_browser(cls) -> Browser:
         """启动浏览器实例"""
         playwright = await async_playwright().start()
-        cls._browser = await playwright.firefox.launch()
+        cls._browser = await playwright.firefox.launch(
+            firefox_user_prefs={
+                'network.http.max-persistent-connections-per-server': 64,
+            },
+        )
         return cls._browser
 
     @classmethod
@@ -80,8 +87,26 @@ class BrowserManager:
         """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()

nonebot_plugin_tetris_stats/utils/screenshot.py

@@ -1,4 +1,4 @@
-from playwright.async_api import TimeoutError, ViewportSize
+from playwright.async_api import BrowserContext, TimeoutError, ViewportSize
 
 from ..config.config import config
 from .browser import BrowserManager
@@ -6,13 +6,15 @@ from .retry import retry
 from .time_it import time_it
 
 
+async def context_factory() -> BrowserContext:
+    return await (await BrowserManager.get_browser()).new_context(device_scale_factor=config.tetris.screenshot_quality)
+
+
 @retry(exception_type=TimeoutError, reply='截图失败, 重试中')
 @time_it
 async def screenshot(url: str) -> bytes:
-    browser = await BrowserManager.get_browser()
-    async with (
-        await browser.new_page(device_scale_factor=config.tetris.screenshot_quality) as page,
-    ):
+    context = await BrowserManager.get_context('screenshot', factory=context_factory)
+    async with await context.new_page() as page:
         await page.goto(url)
         size: ViewportSize = await page.evaluate("""
             () => {