mirror of
https://github.com/zhenxun-org/zhenxun_bot.git
synced 2025-12-15 14:22:55 +08:00
✨ feat(utils): 重构网络请求工具链，增强稳定性与易用性
🔧 HTTP工具优化: • 全局httpx.AsyncClient管理，提升连接复用效率 • AsyncHttpx类重构，支持临时客户端和配置覆盖 • 新增JSON请求方法(get_json/post_json)，内置重试机制 • 增强文件下载，支持多镜像回退和流式进度条 🔄 重试机制升级: • Retry装饰器重构，提供simple/api/download预设 • 支持指数退避、条件重试和自定义失败处理 • 扩展异常覆盖范围，提升网络容错能力 🏗️ 架构改进: • 新增AllURIsFailedError统一异常处理 • 浏览器工具模块化，提升代码组织性
This commit is contained in:
webjoin111
parent
8b9ae7255b
commit
c9bd957146
@ -1,12 +1,19 @@
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from collections.abc import AsyncGenerator
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from contextlib import asynccontextmanager
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import os
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from pathlib import Path
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import sys
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from typing import Any, Literal
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from nonebot import get_driver
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from nonebot_plugin_alconna import UniMessage
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from nonebot_plugin_htmlrender import get_browser
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from playwright.__main__ import main
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from playwright.async_api import Browser, Playwright, async_playwright
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from playwright.async_api import Browser, Page, Playwright, async_playwright
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from zhenxun.configs.config import BotConfig
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from zhenxun.services.log import logger
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from zhenxun.utils.message import MessageUtils
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driver = get_driver()
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@ -89,3 +96,87 @@ async def check_playwright_env():
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await p.chromium.launch()
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except Exception as e:
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raise ImportError("加载失败，Playwright 依赖不全，") from e
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class BrowserIsNone(Exception):
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pass
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class AsyncPlaywright:
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@classmethod
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@asynccontextmanager
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async def new_page(
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cls, cookies: list[dict[str, Any]] | dict[str, Any] | None = None, **kwargs
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) -> AsyncGenerator[Page, None]:
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"""获取一个新页面
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参数:
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cookies: cookies
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"""
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browser = await get_browser()
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ctx = await browser.new_context(**kwargs)
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if cookies:
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if isinstance(cookies, dict):
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cookies = [cookies]
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await ctx.add_cookies(cookies) # type: ignore
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page = await ctx.new_page()
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try:
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yield page
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finally:
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await page.close()
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await ctx.close()
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@classmethod
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async def screenshot(
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cls,
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url: str,
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path: Path | str,
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element: str | list[str],
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*,
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wait_time: int | None = None,
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viewport_size: dict[str, int] | None = None,
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wait_until: (
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Literal["domcontentloaded", "load", "networkidle"] | None
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) = "networkidle",
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timeout: float | None = None,
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type_: Literal["jpeg", "png"] | None = None,
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user_agent: str | None = None,
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cookies: list[dict[str, Any]] | dict[str, Any] | None = None,
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**kwargs,
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) -> UniMessage | None:
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"""截图，该方法仅用于简单快捷截图，复杂截图请操作 page
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参数:
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url: 网址
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path: 存储路径
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element: 元素选择
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wait_time: 等待截取超时时间
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viewport_size: 窗口大小
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wait_until: 等待类型
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timeout: 超时限制
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type_: 保存类型
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user_agent: user_agent
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cookies: cookies
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"""
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if viewport_size is None:
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viewport_size = {"width": 2560, "height": 1080}
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if isinstance(path, str):
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path = Path(path)
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wait_time = wait_time * 1000 if wait_time else None
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element_list = [element] if isinstance(element, str) else element
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async with cls.new_page(
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cookies,
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viewport=viewport_size,
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user_agent=user_agent,
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**kwargs,
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) as page:
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await page.goto(url, timeout=timeout, wait_until=wait_until)
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card = page
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for e in element_list:
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if not card:
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return None
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card = await card.wait_for_selector(e, timeout=wait_time)
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if card:
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await card.screenshot(path=path, timeout=timeout, type=type_)
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return MessageUtils.build_message(path)
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return None
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@ -1,24 +1,226 @@
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from collections.abc import Callable
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from functools import partial, wraps
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from typing import Any, Literal
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from anyio import EndOfStream
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from httpx import ConnectError, HTTPStatusError, TimeoutException
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from tenacity import retry, retry_if_exception_type, stop_after_attempt, wait_fixed
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from httpx import (
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ConnectError,
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HTTPStatusError,
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RemoteProtocolError,
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StreamError,
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TimeoutException,
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)
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from nonebot.utils import is_coroutine_callable
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from tenacity import (
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RetryCallState,
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retry,
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retry_if_exception_type,
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retry_if_result,
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stop_after_attempt,
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wait_exponential,
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wait_fixed,
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)
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from zhenxun.services.log import logger
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LOG_COMMAND = "RetryDecorator"
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_SENTINEL = object()
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def _log_before_sleep(log_name: str | None, retry_state: RetryCallState):
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"""
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tenacity 重试前的日志记录回调函数。
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"""
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func_name = retry_state.fn.__name__ if retry_state.fn else "unknown_function"
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log_context = f"函数 '{func_name}'"
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if log_name:
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log_context = f"操作 '{log_name}' ({log_context})"
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reason = ""
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if retry_state.outcome:
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if exc := retry_state.outcome.exception():
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reason = f"触发异常: {exc.__class__.__name__}({exc})"
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else:
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reason = f"不满足结果条件: result={retry_state.outcome.result()}"
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wait_time = (
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getattr(retry_state.next_action, "sleep", 0) if retry_state.next_action else 0
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)
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logger.warning(
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f"{log_context} 第 {retry_state.attempt_number} 次重试... "
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f"等待 {wait_time:.2f} 秒. {reason}",
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LOG_COMMAND,
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)
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class Retry:
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@staticmethod
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def api(
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retry_count: int = 3, wait: int = 1, exception: tuple[type[Exception], ...] = ()
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def simple(
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stop_max_attempt: int = 3,
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wait_fixed_seconds: int = 2,
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exception: tuple[type[Exception], ...] = (),
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*,
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log_name: str | None = None,
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on_failure: Callable[[Exception], Any] | None = None,
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return_on_failure: Any = _SENTINEL,
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):
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"""接口调用重试"""
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"""
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一个简单的、用于通用网络请求的重试装饰器预设。
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参数:
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stop_max_attempt: 最大重试次数。
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wait_fixed_seconds: 固定等待策略的等待秒数。
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exception: 额外需要重试的异常类型元组。
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log_name: 用于日志记录的操作名称。
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on_failure: (可选) 所有重试失败后的回调。
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return_on_failure: (可选) 所有重试失败后的返回值。
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"""
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return Retry.api(
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stop_max_attempt=stop_max_attempt,
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wait_fixed_seconds=wait_fixed_seconds,
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exception=exception,
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strategy="fixed",
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log_name=log_name,
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on_failure=on_failure,
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return_on_failure=return_on_failure,
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)
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@staticmethod
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def download(
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stop_max_attempt: int = 3,
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exception: tuple[type[Exception], ...] = (),
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*,
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wait_exp_multiplier: int = 2,
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wait_exp_max: int = 15,
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log_name: str | None = None,
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on_failure: Callable[[Exception], Any] | None = None,
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return_on_failure: Any = _SENTINEL,
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):
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"""
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一个适用于文件下载的重试装饰器预设，使用指数退避策略。
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参数:
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stop_max_attempt: 最大重试次数。
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exception: 额外需要重试的异常类型元组。
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wait_exp_multiplier: 指数退避的乘数。
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wait_exp_max: 指数退避的最大等待时间。
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log_name: 用于日志记录的操作名称。
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on_failure: (可选) 所有重试失败后的回调。
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return_on_failure: (可选) 所有重试失败后的返回值。
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"""
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return Retry.api(
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stop_max_attempt=stop_max_attempt,
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exception=exception,
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strategy="exponential",
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wait_exp_multiplier=wait_exp_multiplier,
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wait_exp_max=wait_exp_max,
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log_name=log_name,
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on_failure=on_failure,
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return_on_failure=return_on_failure,
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)
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@staticmethod
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def api(
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stop_max_attempt: int = 3,
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wait_fixed_seconds: int = 1,
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exception: tuple[type[Exception], ...] = (),
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*,
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strategy: Literal["fixed", "exponential"] = "fixed",
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retry_on_result: Callable[[Any], bool] | None = None,
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wait_exp_multiplier: int = 1,
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wait_exp_max: int = 10,
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log_name: str | None = None,
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on_failure: Callable[[Exception], Any] | None = None,
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return_on_failure: Any = _SENTINEL,
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):
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"""
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通用、可配置的API调用重试装饰器。
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参数:
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stop_max_attempt: 最大重试次数。
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wait_fixed_seconds: 固定等待策略的等待秒数。
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exception: 额外需要重试的异常类型元组。
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strategy: 重试等待策略, 'fixed' (固定) 或 'exponential' (指数退避)。
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retry_on_result: 一个回调函数，接收函数返回值。如果返回 True，则触发重试。
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例如 `lambda r: r.status_code != 200`
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wait_exp_multiplier: 指数退避的乘数。
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wait_exp_max: 指数退避的最大等待时间。
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log_name: 用于日志记录的操作名称，方便区分不同的重试场景。
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on_failure: (可选) 当所有重试都失败后，在抛出异常或返回默认值之前，
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会调用此函数，并将最终的异常实例作为参数传入。
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return_on_failure: (可选) 如果设置了此参数，当所有重试失败后，
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将不再抛出异常，而是返回此参数指定的值。
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"""
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base_exceptions = (
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TimeoutException,
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ConnectError,
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HTTPStatusError,
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StreamError,
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RemoteProtocolError,
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EndOfStream,
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*exception,
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)
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return retry(
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reraise=True,
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stop=stop_after_attempt(retry_count),
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wait=wait_fixed(wait),
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retry=retry_if_exception_type(base_exceptions),
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)
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def decorator(func: Callable) -> Callable:
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if strategy == "exponential":
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wait_strategy = wait_exponential(
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multiplier=wait_exp_multiplier, max=wait_exp_max
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)
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else:
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wait_strategy = wait_fixed(wait_fixed_seconds)
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retry_conditions = retry_if_exception_type(base_exceptions)
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if retry_on_result:
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retry_conditions |= retry_if_result(retry_on_result)
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log_callback = partial(_log_before_sleep, log_name)
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tenacity_retry_decorator = retry(
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stop=stop_after_attempt(stop_max_attempt),
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wait=wait_strategy,
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retry=retry_conditions,
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before_sleep=log_callback,
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reraise=True,
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)
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decorated_func = tenacity_retry_decorator(func)
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if return_on_failure is _SENTINEL:
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return decorated_func
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if is_coroutine_callable(func):
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@wraps(func)
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async def async_wrapper(*args, **kwargs):
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try:
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return await decorated_func(*args, **kwargs)
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except Exception as e:
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if on_failure:
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if is_coroutine_callable(on_failure):
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await on_failure(e)
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else:
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on_failure(e)
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return return_on_failure
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return async_wrapper
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else:
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@wraps(func)
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def sync_wrapper(*args, **kwargs):
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try:
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return decorated_func(*args, **kwargs)
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except Exception as e:
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if on_failure:
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if is_coroutine_callable(on_failure):
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logger.error(
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f"不能在同步函数 '{func.__name__}' 中调用异步的 "
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f"on_failure 回调。",
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LOG_COMMAND,
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)
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else:
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on_failure(e)
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return return_on_failure
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return sync_wrapper
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return decorator
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@ -64,3 +64,23 @@ class GoodsNotFound(Exception):
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"""
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pass
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class AllURIsFailedError(Exception):
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"""
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当所有备用URL都尝试失败后抛出此异常
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"""
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def __init__(self, urls: list[str], exceptions: list[Exception]):
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self.urls = urls
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self.exceptions = exceptions
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super().__init__(
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f"All {len(urls)} URIs failed. Last exception: {exceptions[-1]}"
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)
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def __str__(self) -> str:
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exc_info = "\n".join(
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f" - {url}: {exc.__class__.__name__}({exc})"
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for url, exc in zip(self.urls, self.exceptions)
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)
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return f"All {len(self.urls)} URIs failed:\n{exc_info}"
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@ -1,16 +1,15 @@
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import asyncio
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from collections.abc import AsyncGenerator, Sequence
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from collections.abc import AsyncGenerator, Awaitable, Callable, Sequence
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from contextlib import asynccontextmanager
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import json
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from pathlib import Path
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import time
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from typing import Any, ClassVar, Literal, cast
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from typing import Any, ClassVar, cast
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import aiofiles
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import httpx
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from httpx import AsyncHTTPTransport, HTTPStatusError, Proxy, Response
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from nonebot_plugin_alconna import UniMessage
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from nonebot_plugin_htmlrender import get_browser
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from playwright.async_api import Page
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from httpx import AsyncClient, AsyncHTTPTransport, HTTPStatusError, Proxy, Response
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import nonebot
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from rich.progress import (
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BarColumn,
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DownloadColumn,
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@ -21,18 +20,60 @@ from rich.progress import (
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from zhenxun.configs.config import BotConfig
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from zhenxun.services.log import logger
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from zhenxun.utils.message import MessageUtils
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from zhenxun.utils.decorator.retry import Retry
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from zhenxun.utils.exception import AllURIsFailedError
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from zhenxun.utils.user_agent import get_user_agent
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CLIENT_KEY = ["use_proxy", "proxies", "proxy", "verify", "headers"]
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from .browser import AsyncPlaywright, BrowserIsNone # noqa: F401
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_SENTINEL = object()
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driver = nonebot.get_driver()
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_client: AsyncClient | None = None
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@driver.on_startup
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async def _init_client():
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"""
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在Bot启动时初始化全局httpx客户端。
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"""
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global _client
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proxy_url = BotConfig.system_proxy if BotConfig.system_proxy else None
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_client = httpx.AsyncClient(
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proxies=proxy_url, headers=get_user_agent(), follow_redirects=True
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)
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logger.info("全局 httpx.AsyncClient 已启动。", "HTTPClient")
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@driver.on_shutdown
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async def _close_client():
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"""
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在Bot关闭时关闭全局httpx客户端。
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"""
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if _client:
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await _client.aclose()
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logger.info("全局 httpx.AsyncClient 已关闭。", "HTTPClient")
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def get_client() -> AsyncClient:
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"""
|
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获取全局 httpx.AsyncClient 实例。
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"""
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if not _client:
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raise RuntimeError("全局 httpx.AsyncClient 未初始化，请检查启动流程。")
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return _client
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|
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|
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def get_async_client(
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proxies: dict[str, str] | None = None,
|
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proxy: str | None = None,
|
||||
proxy: str | None = None, # 向后兼容：保留旧版本的 proxy 参数
|
||||
verify: bool = False,
|
||||
**kwargs,
|
||||
) -> httpx.AsyncClient:
|
||||
"""
|
||||
[向后兼容] 创建 httpx.AsyncClient 实例的工厂函数。
|
||||
此函数完全保留了旧版本的接口，确保现有代码无需修改即可使用。
|
||||
"""
|
||||
transport = kwargs.pop("transport", None) or AsyncHTTPTransport(verify=verify)
|
||||
if proxies:
|
||||
http_proxy = proxies.get("http://")
|
||||
@ -62,6 +103,32 @@ def get_async_client(
|
||||
|
||||
|
||||
class AsyncHttpx:
|
||||
"""
|
||||
一个高级的、健壮的异步HTTP客户端工具类。
|
||||
|
||||
设计理念:
|
||||
- **全局共享客户端**: 默认情况下，所有请求都通过一个在应用启动时初始化的全局
|
||||
`httpx.AsyncClient` 实例发出。这个实例共享连接池，提高了效率和性能。
|
||||
- **向后兼容与灵活性**: 完全兼容旧的API，同时提供了两种方式来处理需要
|
||||
特殊网络配置（如不同代理、超时）的请求：
|
||||
1. **单次请求覆盖**: 在调用 `get`, `post` 等方法时，直接传入 `proxies`,
|
||||
`timeout` 等参数，将为该次请求创建一个临时的、独立的客户端。
|
||||
2. **临时客户端上下文**: 使用 `temporary_client()` 上下文管理器，可以
|
||||
获取一个独立的、可配置的客户端，用于执行一系列需要相同特殊配置的请求。
|
||||
- **健壮性**: 内置了自动重试、多镜像URL回退（fallback）机制，并提供了便捷的
|
||||
JSON解析和文件下载方法。
|
||||
"""
|
||||
|
||||
# [向后兼容] 保留旧版本的客户端配置键名，确保现有代码可以正常工作
|
||||
CLIENT_KEY: ClassVar[list[str]] = [
|
||||
"use_proxy",
|
||||
"proxies",
|
||||
"proxy",
|
||||
"verify",
|
||||
"headers",
|
||||
]
|
||||
|
||||
# [向后兼容] 保持与旧版本相同的默认代理结构
|
||||
default_proxy: ClassVar[dict[str, str] | None] = (
|
||||
{
|
||||
"http://": BotConfig.system_proxy,
|
||||
@ -72,155 +139,351 @@ class AsyncHttpx:
|
||||
)
|
||||
|
||||
@classmethod
|
||||
@asynccontextmanager
|
||||
async def _create_client(
|
||||
cls,
|
||||
*,
|
||||
use_proxy: bool = True,
|
||||
proxies: dict[str, str] | None = None,
|
||||
proxy: str | None = None,
|
||||
headers: dict[str, str] | None = None,
|
||||
verify: bool = False,
|
||||
**kwargs,
|
||||
) -> AsyncGenerator[httpx.AsyncClient, None]:
|
||||
"""创建一个私有的、配置好的 httpx.AsyncClient 上下文管理器。
|
||||
|
||||
说明:
|
||||
此方法用于内部统一创建客户端，处理代理和请求头逻辑，减少代码重复。
|
||||
|
||||
参数:
|
||||
use_proxy: 是否使用在类中定义的默认代理。
|
||||
proxies: 手动指定的代理，会覆盖默认代理。
|
||||
proxy: 单个代理,用于兼容旧版本，不再使用
|
||||
headers: 需要合并到客户端的自定义请求头。
|
||||
verify: 是否验证 SSL 证书。
|
||||
**kwargs: 其他所有传递给 httpx.AsyncClient 的参数。
|
||||
|
||||
返回:
|
||||
AsyncGenerator[httpx.AsyncClient, None]: 生成器。
|
||||
def _prepare_temporary_client_config(cls, client_kwargs: dict) -> dict:
|
||||
"""
|
||||
proxies_to_use = proxies or (cls.default_proxy if use_proxy else None)
|
||||
[向后兼容] 处理旧式的客户端kwargs，将其转换为get_async_client可用的配置。
|
||||
主要负责处理 use_proxy 标志，这是为了兼容旧版本代码中使用的 use_proxy 参数。
|
||||
"""
|
||||
final_config = client_kwargs.copy()
|
||||
|
||||
final_headers = get_user_agent()
|
||||
if headers:
|
||||
final_headers.update(headers)
|
||||
use_proxy = final_config.pop("use_proxy", True)
|
||||
|
||||
async with get_async_client(
|
||||
proxies=proxies_to_use,
|
||||
proxy=proxy,
|
||||
verify=verify,
|
||||
headers=final_headers,
|
||||
**kwargs,
|
||||
) as client:
|
||||
yield client
|
||||
if "proxies" not in final_config and "proxy" not in final_config:
|
||||
if use_proxy:
|
||||
final_config["proxies"] = cls.default_proxy
|
||||
else:
|
||||
final_config["proxies"] = None
|
||||
|
||||
return final_config
|
||||
|
||||
@classmethod
|
||||
def _split_kwargs(cls, kwargs: dict) -> tuple[dict, dict]:
|
||||
"""[优化] 分离客户端配置和请求参数，使逻辑更清晰。"""
|
||||
client_kwargs = {k: v for k, v in kwargs.items() if k in cls.CLIENT_KEY}
|
||||
request_kwargs = {k: v for k, v in kwargs.items() if k not in cls.CLIENT_KEY}
|
||||
return client_kwargs, request_kwargs
|
||||
|
||||
@classmethod
|
||||
@asynccontextmanager
|
||||
async def _get_active_client_context(
|
||||
cls, client: AsyncClient | None = None, **kwargs
|
||||
) -> AsyncGenerator[AsyncClient, None]:
|
||||
"""
|
||||
内部辅助方法，根据 kwargs 决定并提供一个活动的 HTTP 客户端。
|
||||
- 如果 kwargs 中有客户端配置，则创建并返回一个临时客户端。
|
||||
- 否则，返回传入的 client 或全局客户端。
|
||||
- 自动处理临时客户端的关闭。
|
||||
"""
|
||||
if kwargs:
|
||||
logger.debug(f"为单次请求创建临时客户端，配置: {kwargs}")
|
||||
temp_client_config = cls._prepare_temporary_client_config(kwargs)
|
||||
async with get_async_client(**temp_client_config) as temp_client:
|
||||
yield temp_client
|
||||
else:
|
||||
yield client or get_client()
|
||||
|
||||
@Retry.simple(log_name="内部HTTP请求")
|
||||
async def _execute_request_inner(
|
||||
self, client: AsyncClient, method: str, url: str, **kwargs
|
||||
) -> Response:
|
||||
"""
|
||||
[内部] 执行单次HTTP请求的私有核心方法，被重试装饰器包裹。
|
||||
"""
|
||||
response = await client.request(method, url, **kwargs)
|
||||
return response
|
||||
|
||||
@classmethod
|
||||
async def _single_request(
|
||||
cls, method: str, url: str, *, client: AsyncClient | None = None, **kwargs
|
||||
) -> Response:
|
||||
"""
|
||||
执行单次HTTP请求的私有方法，内置了默认的重试逻辑。
|
||||
"""
|
||||
client_kwargs, request_kwargs = cls._split_kwargs(kwargs)
|
||||
|
||||
async with cls._get_active_client_context(
|
||||
client=client, **client_kwargs
|
||||
) as active_client:
|
||||
response = await cls()._execute_request_inner(
|
||||
active_client, method, url, **request_kwargs
|
||||
)
|
||||
return response
|
||||
|
||||
@classmethod
|
||||
async def _execute_with_fallbacks(
|
||||
cls,
|
||||
urls: str | list[str],
|
||||
worker: Callable[..., Awaitable[Any]],
|
||||
*,
|
||||
client: AsyncClient | None = None,
|
||||
**kwargs,
|
||||
) -> Any:
|
||||
"""
|
||||
通用执行器，按顺序尝试多个URL，直到成功。
|
||||
|
||||
Args:
|
||||
urls: 单个URL或URL列表。
|
||||
worker: 一个接受单个URL和其他kwargs并执行请求的协程函数。
|
||||
client: 可选的HTTP客户端。
|
||||
**kwargs: 传递给worker的额外参数。
|
||||
"""
|
||||
url_list = [urls] if isinstance(urls, str) else urls
|
||||
exceptions = []
|
||||
|
||||
for i, url in enumerate(url_list):
|
||||
try:
|
||||
result = await worker(url, client=client, **kwargs)
|
||||
if i > 0:
|
||||
logger.info(
|
||||
f"成功从镜像 '{url}' 获取资源 "
|
||||
f"(在尝试了 {i} 个失败的镜像之后)。",
|
||||
"AsyncHttpx:FallbackExecutor",
|
||||
)
|
||||
return result
|
||||
except Exception as e:
|
||||
exceptions.append(e)
|
||||
if url != url_list[-1]:
|
||||
logger.warning(
|
||||
f"Worker '{worker.__name__}' on {url} failed, trying next. "
|
||||
f"Error: {e.__class__.__name__}",
|
||||
"AsyncHttpx:FallbackExecutor",
|
||||
)
|
||||
|
||||
raise AllURIsFailedError(url_list, exceptions)
|
||||
|
||||
@classmethod
|
||||
async def get(
|
||||
cls,
|
||||
url: str | list[str],
|
||||
*,
|
||||
follow_redirects: bool = True,
|
||||
check_status_code: int | None = None,
|
||||
client: AsyncClient | None = None,
|
||||
**kwargs,
|
||||
) -> Response: # sourcery skip: use-assigned-variable
|
||||
) -> Response:
|
||||
"""发送 GET 请求，并返回第一个成功的响应。
|
||||
|
||||
说明:
|
||||
本方法是 httpx.get 的高级包装，增加了多链接尝试、自动重试和统一的代理管理。
|
||||
如果提供 URL 列表，它将依次尝试直到成功为止。
|
||||
本方法是 httpx.get 的高级包装，增加了多链接尝试、自动重试和统一的
|
||||
客户端管理。如果提供 URL 列表，它将依次尝试直到成功为止。
|
||||
|
||||
用法建议:
|
||||
- **常规使用**: `await AsyncHttpx.get(url)` 将使用全局客户端。
|
||||
- **单次覆盖配置**: `await AsyncHttpx.get(url, timeout=5, proxies=None)`
|
||||
将为本次请求创建一个独立的临时客户端。
|
||||
|
||||
参数:
|
||||
url: 单个请求 URL 或一个 URL 列表。
|
||||
follow_redirects: 是否跟随重定向。
|
||||
check_status_code: (可选) 若提供，将检查响应状态码是否匹配，否则抛出异常。
|
||||
**kwargs: 其他所有传递给 httpx.get 的参数
|
||||
(如 `params`, `headers`, `timeout`等)。
|
||||
client: (可选) 指定一个活动的HTTP客户端实例。若提供，则忽略
|
||||
`**kwargs`中的客户端配置。
|
||||
**kwargs: 其他所有传递给 httpx.get 的参数 (如 `params`, `headers`,
|
||||
`timeout`)。如果包含 `proxies`, `verify` 等客户端配置参数，
|
||||
将创建一个临时客户端。
|
||||
|
||||
返回:
|
||||
Response: Response
|
||||
Response: httpx 的响应对象。
|
||||
|
||||
Raises:
|
||||
AllURIsFailedError: 当所有提供的URL都请求失败时抛出。
|
||||
"""
|
||||
urls = [url] if isinstance(url, str) else url
|
||||
last_exception = None
|
||||
for current_url in urls:
|
||||
try:
|
||||
logger.info(f"开始获取 {current_url}..")
|
||||
client_kwargs = {k: v for k, v in kwargs.items() if k in CLIENT_KEY}
|
||||
for key in CLIENT_KEY:
|
||||
kwargs.pop(key, None)
|
||||
async with cls._create_client(**client_kwargs) as client:
|
||||
response = await client.get(current_url, **kwargs)
|
||||
|
||||
if check_status_code and response.status_code != check_status_code:
|
||||
raise HTTPStatusError(
|
||||
f"状态码错误: {response.status_code}!={check_status_code}",
|
||||
request=response.request,
|
||||
response=response,
|
||||
)
|
||||
return response
|
||||
except Exception as e:
|
||||
last_exception = e
|
||||
if current_url != urls[-1]:
|
||||
logger.warning(f"获取 {current_url} 失败, 尝试下一个", e=e)
|
||||
async def worker(current_url: str, **worker_kwargs) -> Response:
|
||||
logger.info(f"开始获取 {current_url}..", "AsyncHttpx:get")
|
||||
response = await cls._single_request(
|
||||
"GET", current_url, follow_redirects=follow_redirects, **worker_kwargs
|
||||
)
|
||||
if check_status_code and response.status_code != check_status_code:
|
||||
raise HTTPStatusError(
|
||||
f"状态码错误: {response.status_code}!={check_status_code}",
|
||||
request=response.request,
|
||||
response=response,
|
||||
)
|
||||
return response
|
||||
|
||||
raise last_exception or Exception("所有URL都获取失败")
|
||||
return await cls._execute_with_fallbacks(url, worker, client=client, **kwargs)
|
||||
|
||||
@classmethod
|
||||
async def head(cls, url: str, **kwargs) -> Response:
|
||||
"""发送 HEAD 请求。
|
||||
async def head(
|
||||
cls, url: str | list[str], *, client: AsyncClient | None = None, **kwargs
|
||||
) -> Response:
|
||||
"""发送 HEAD 请求，并返回第一个成功的响应。"""
|
||||
|
||||
说明:
|
||||
本方法是对 httpx.head 的封装，通常用于检查资源的元信息（如大小、类型）。
|
||||
async def worker(current_url: str, **worker_kwargs) -> Response:
|
||||
return await cls._single_request("HEAD", current_url, **worker_kwargs)
|
||||
|
||||
参数:
|
||||
url: 请求的 URL。
|
||||
**kwargs: 其他所有传递给 httpx.head 的参数
|
||||
(如 `headers`, `timeout`, `allow_redirects`)。
|
||||
|
||||
返回:
|
||||
Response: Response
|
||||
"""
|
||||
client_kwargs = {k: v for k, v in kwargs.items() if k in CLIENT_KEY}
|
||||
for key in CLIENT_KEY:
|
||||
kwargs.pop(key, None)
|
||||
async with cls._create_client(**client_kwargs) as client:
|
||||
return await client.head(url, **kwargs)
|
||||
return await cls._execute_with_fallbacks(url, worker, client=client, **kwargs)
|
||||
|
||||
@classmethod
|
||||
async def post(cls, url: str, **kwargs) -> Response:
|
||||
"""发送 POST 请求。
|
||||
async def post(
|
||||
cls, url: str | list[str], *, client: AsyncClient | None = None, **kwargs
|
||||
) -> Response:
|
||||
"""发送 POST 请求，并返回第一个成功的响应。"""
|
||||
|
||||
说明:
|
||||
本方法是对 httpx.post 的封装，提供了统一的代理和客户端管理。
|
||||
async def worker(current_url: str, **worker_kwargs) -> Response:
|
||||
return await cls._single_request("POST", current_url, **worker_kwargs)
|
||||
|
||||
参数:
|
||||
url: 请求的 URL。
|
||||
**kwargs: 其他所有传递给 httpx.post 的参数
|
||||
(如 `data`, `json`, `content` 等)。
|
||||
|
||||
返回:
|
||||
Response: Response。
|
||||
"""
|
||||
client_kwargs = {k: v for k, v in kwargs.items() if k in CLIENT_KEY}
|
||||
for key in CLIENT_KEY:
|
||||
kwargs.pop(key, None)
|
||||
async with cls._create_client(**client_kwargs) as client:
|
||||
return await client.post(url, **kwargs)
|
||||
return await cls._execute_with_fallbacks(url, worker, client=client, **kwargs)
|
||||
|
||||
@classmethod
|
||||
async def get_content(cls, url: str, **kwargs) -> bytes:
|
||||
"""获取指定 URL 的二进制内容。
|
||||
|
||||
说明:
|
||||
这是一个便捷方法，等同于调用 get() 后再访问 .content 属性。
|
||||
|
||||
参数:
|
||||
url: 请求的 URL。
|
||||
**kwargs: 所有传递给 get() 方法的参数。
|
||||
|
||||
返回:
|
||||
bytes: 响应内容的二进制字节流 (bytes)。
|
||||
"""
|
||||
res = await cls.get(url, **kwargs)
|
||||
async def get_content(
|
||||
cls, url: str | list[str], *, client: AsyncClient | None = None, **kwargs
|
||||
) -> bytes:
|
||||
"""获取指定 URL 的二进制内容。"""
|
||||
res = await cls.get(url, client=client, **kwargs)
|
||||
return res.content
|
||||
|
||||
# [优化] 将 get/post 的JSON解析逻辑合并为一个方法
|
||||
@classmethod
|
||||
@Retry.api(
|
||||
log_name="JSON请求",
|
||||
exception=(json.JSONDecodeError,),
|
||||
return_on_failure=_SENTINEL,
|
||||
)
|
||||
async def _request_and_parse_json(
|
||||
cls, method: str, url: str, *, client: AsyncClient | None = None, **kwargs
|
||||
) -> Any:
|
||||
"""
|
||||
[私有] 执行单个HTTP请求并解析JSON，用于内部统一处理。
|
||||
"""
|
||||
async with cls._get_active_client_context(
|
||||
client=client, **kwargs
|
||||
) as active_client:
|
||||
_, request_kwargs = cls._split_kwargs(kwargs)
|
||||
response = await active_client.request(method, url, **request_kwargs)
|
||||
response.raise_for_status()
|
||||
return response.json()
|
||||
|
||||
@classmethod
|
||||
async def get_json(
|
||||
cls,
|
||||
url: str | list[str],
|
||||
*,
|
||||
default: Any = None,
|
||||
raise_on_failure: bool = False,
|
||||
client: AsyncClient | None = None,
|
||||
**kwargs,
|
||||
) -> Any:
|
||||
"""
|
||||
发送GET请求并自动解析为JSON，支持重试和多链接尝试。
|
||||
|
||||
说明:
|
||||
这是一个高度便捷的方法，封装了请求、重试、JSON解析和错误处理。
|
||||
它会在网络错误或JSON解析错误时自动重试。
|
||||
如果所有尝试都失败，它会安全地返回一个默认值。
|
||||
|
||||
参数:
|
||||
url: 单个请求 URL 或一个备用 URL 列表。
|
||||
default: (可选) 当所有尝试都失败时返回的默认值，默认为None。
|
||||
raise_on_failure: (可选) 如果为 True, 当所有尝试失败时将抛出
|
||||
`AllURIsFailedError` 异常, 默认为 False.
|
||||
client: (可选) 指定的HTTP客户端。
|
||||
**kwargs: 其他所有传递给 httpx.get 的参数。
|
||||
例如 `params`, `headers`, `timeout`等。
|
||||
|
||||
返回:
|
||||
Any: 解析后的JSON数据，或在失败时返回 `default` 值。
|
||||
|
||||
Raises:
|
||||
AllURIsFailedError: 当 `raise_on_failure` 为 True 且所有URL都请求失败时抛出
|
||||
"""
|
||||
|
||||
async def worker(current_url: str, **worker_kwargs):
|
||||
logger.debug(f"开始GET JSON: {current_url}", "AsyncHttpx:get_json")
|
||||
return await cls._request_and_parse_json(
|
||||
"GET", current_url, **worker_kwargs
|
||||
)
|
||||
|
||||
try:
|
||||
result = await cls._execute_with_fallbacks(
|
||||
url, worker, client=client, **kwargs
|
||||
)
|
||||
return default if result is _SENTINEL else result
|
||||
except AllURIsFailedError as e:
|
||||
logger.error(f"所有URL的JSON GET均失败: {e}", "AsyncHttpx:get_json")
|
||||
if raise_on_failure:
|
||||
raise e
|
||||
return default
|
||||
|
||||
@classmethod
|
||||
async def post_json(
|
||||
cls,
|
||||
url: str | list[str],
|
||||
*,
|
||||
json: Any = None,
|
||||
data: Any = None,
|
||||
default: Any = None,
|
||||
raise_on_failure: bool = False,
|
||||
client: AsyncClient | None = None,
|
||||
**kwargs,
|
||||
) -> Any:
|
||||
"""
|
||||
发送POST请求并自动解析为JSON，功能与 get_json 类似。
|
||||
|
||||
参数:
|
||||
url: 单个请求 URL 或一个备用 URL 列表。
|
||||
json: (可选) 作为请求体发送的JSON数据。
|
||||
data: (可选) 作为请求体发送的表单数据。
|
||||
default: (可选) 当所有尝试都失败时返回的默认值，默认为None。
|
||||
raise_on_failure: (可选) 如果为 True, 当所有尝试失败时将抛出
|
||||
AllURIsFailedError 异常, 默认为 False.
|
||||
client: (可选) 指定的HTTP客户端。
|
||||
**kwargs: 其他所有传递给 httpx.post 的参数。
|
||||
|
||||
返回:
|
||||
Any: 解析后的JSON数据，或在失败时返回 `default` 值。
|
||||
"""
|
||||
if json is not None:
|
||||
kwargs["json"] = json
|
||||
if data is not None:
|
||||
kwargs["data"] = data
|
||||
|
||||
async def worker(current_url: str, **worker_kwargs):
|
||||
logger.debug(f"开始POST JSON: {current_url}", "AsyncHttpx:post_json")
|
||||
return await cls._request_and_parse_json(
|
||||
"POST", current_url, **worker_kwargs
|
||||
)
|
||||
|
||||
try:
|
||||
result = await cls._execute_with_fallbacks(
|
||||
url, worker, client=client, **kwargs
|
||||
)
|
||||
return default if result is _SENTINEL else result
|
||||
except AllURIsFailedError as e:
|
||||
logger.error(f"所有URL的JSON POST均失败: {e}", "AsyncHttpx:post_json")
|
||||
if raise_on_failure:
|
||||
raise e
|
||||
return default
|
||||
|
||||
@classmethod
|
||||
@Retry.api(log_name="文件下载(流式)")
|
||||
async def _stream_download(
|
||||
cls, url: str, path: Path, *, client: AsyncClient | None = None, **kwargs
|
||||
) -> None:
|
||||
"""
|
||||
执行单个流式下载的私有方法，被重试装饰器包裹。
|
||||
"""
|
||||
async with cls._get_active_client_context(
|
||||
client=client, **kwargs
|
||||
) as active_client:
|
||||
async with active_client.stream("GET", url, **kwargs) as response:
|
||||
response.raise_for_status()
|
||||
total = int(response.headers.get("Content-Length", 0))
|
||||
|
||||
with Progress(
|
||||
TextColumn(path.name),
|
||||
"[progress.percentage]{task.percentage:>3.0f}%",
|
||||
BarColumn(bar_width=None),
|
||||
DownloadColumn(),
|
||||
TransferSpeedColumn(),
|
||||
) as progress:
|
||||
task_id = progress.add_task("Download", total=total)
|
||||
async with aiofiles.open(path, "wb") as f:
|
||||
async for chunk in response.aiter_bytes():
|
||||
await f.write(chunk)
|
||||
progress.update(task_id, advance=len(chunk))
|
||||
|
||||
@classmethod
|
||||
async def download_file(
|
||||
cls,
|
||||
@ -228,6 +491,7 @@ class AsyncHttpx:
|
||||
path: str | Path,
|
||||
*,
|
||||
stream: bool = False,
|
||||
client: AsyncClient | None = None,
|
||||
**kwargs,
|
||||
) -> bool:
|
||||
"""下载文件到指定路径。
|
||||
@ -239,6 +503,7 @@ class AsyncHttpx:
|
||||
url: 单个文件 URL 或一个备用 URL 列表。
|
||||
path: 文件保存的本地路径。
|
||||
stream: (可选) 是否使用流式下载，适用于大文件，默认为 False。
|
||||
client: (可选) 指定的HTTP客户端。
|
||||
**kwargs: 其他所有传递给 get() 方法或 httpx.stream() 的参数。
|
||||
|
||||
返回:
|
||||
@ -247,49 +512,29 @@ class AsyncHttpx:
|
||||
path = Path(path)
|
||||
path.parent.mkdir(parents=True, exist_ok=True)
|
||||
|
||||
urls = [url] if isinstance(url, str) else url
|
||||
async def worker(current_url: str, **worker_kwargs) -> bool:
|
||||
if not stream:
|
||||
content = await cls.get_content(current_url, **worker_kwargs)
|
||||
async with aiofiles.open(path, "wb") as f:
|
||||
await f.write(content)
|
||||
else:
|
||||
await cls._stream_download(current_url, path, **worker_kwargs)
|
||||
|
||||
for current_url in urls:
|
||||
try:
|
||||
if not stream:
|
||||
response = await cls.get(current_url, **kwargs)
|
||||
response.raise_for_status()
|
||||
async with aiofiles.open(path, "wb") as f:
|
||||
await f.write(response.content)
|
||||
else:
|
||||
async with cls._create_client(**kwargs) as client:
|
||||
stream_kwargs = {
|
||||
k: v
|
||||
for k, v in kwargs.items()
|
||||
if k not in ["use_proxy", "proxy", "verify"]
|
||||
}
|
||||
async with client.stream(
|
||||
"GET", current_url, **stream_kwargs
|
||||
) as response:
|
||||
response.raise_for_status()
|
||||
total = int(response.headers.get("Content-Length", 0))
|
||||
logger.info(
|
||||
f"下载 {current_url} 成功 -> {path.absolute()}",
|
||||
"AsyncHttpx:download",
|
||||
)
|
||||
return True
|
||||
|
||||
with Progress(
|
||||
TextColumn(path.name),
|
||||
"[progress.percentage]{task.percentage:>3.0f}%",
|
||||
BarColumn(bar_width=None),
|
||||
DownloadColumn(),
|
||||
TransferSpeedColumn(),
|
||||
) as progress:
|
||||
task_id = progress.add_task("Download", total=total)
|
||||
async with aiofiles.open(path, "wb") as f:
|
||||
async for chunk in response.aiter_bytes():
|
||||
await f.write(chunk)
|
||||
progress.update(task_id, advance=len(chunk))
|
||||
|
||||
logger.info(f"下载 {current_url} 成功 -> {path.absolute()}")
|
||||
return True
|
||||
|
||||
except Exception as e:
|
||||
logger.warning(f"下载 {current_url} 失败，尝试下一个。错误: {e}")
|
||||
|
||||
logger.error(f"所有URL {urls} 下载均失败 -> {path.absolute()}")
|
||||
return False
|
||||
try:
|
||||
return await cls._execute_with_fallbacks(
|
||||
url, worker, client=client, **kwargs
|
||||
)
|
||||
except AllURIsFailedError:
|
||||
logger.error(
|
||||
f"所有URL下载均失败 -> {path.absolute()}", "AsyncHttpx:download"
|
||||
)
|
||||
return False
|
||||
|
||||
@classmethod
|
||||
async def gather_download_file(
|
||||
@ -346,7 +591,6 @@ class AsyncHttpx:
|
||||
logger.error(f"并发下载任务 ({url_info}) 时发生错误", e=result)
|
||||
final_results.append(False)
|
||||
else:
|
||||
# download_file 返回的是 bool，可以直接附加
|
||||
final_results.append(cast(bool, result))
|
||||
|
||||
return final_results
|
||||
@ -396,85 +640,30 @@ class AsyncHttpx:
|
||||
return [result["url"] for result in _results]
|
||||
|
||||
|
||||
class AsyncPlaywright:
|
||||
@classmethod
|
||||
@asynccontextmanager
|
||||
async def new_page(
|
||||
cls, cookies: list[dict[str, Any]] | dict[str, Any] | None = None, **kwargs
|
||||
) -> AsyncGenerator[Page, None]:
|
||||
"""获取一个新页面
|
||||
async def temporary_client(cls, **kwargs) -> AsyncGenerator[AsyncClient, None]:
|
||||
"""
|
||||
创建一个临时的、可配置的HTTP客户端上下文，并直接返回该客户端实例。
|
||||
|
||||
此方法返回一个标准的 `httpx.AsyncClient`，它不使用全局连接池，
|
||||
拥有独立的配置(如代理、headers、超时等)，并在退出上下文后自动关闭。
|
||||
适用于需要用一套特殊网络配置执行一系列请求的场景。
|
||||
|
||||
用法:
|
||||
async with AsyncHttpx.temporary_client(proxies=None, timeout=5) as client:
|
||||
# client 是一个标准的 httpx.AsyncClient 实例
|
||||
response1 = await client.get("http://some.internal.api/1")
|
||||
response2 = await client.get("http://some.internal.api/2")
|
||||
data = response2.json()
|
||||
|
||||
参数:
|
||||
cookies: cookies
|
||||
**kwargs: 所有传递给 `httpx.AsyncClient` 构造函数的参数。
|
||||
例如: `proxies`, `headers`, `verify`, `timeout`,
|
||||
`follow_redirects`。
|
||||
|
||||
Yields:
|
||||
httpx.AsyncClient: 一个配置好的、临时的客户端实例。
|
||||
"""
|
||||
browser = await get_browser()
|
||||
ctx = await browser.new_context(**kwargs)
|
||||
if cookies:
|
||||
if isinstance(cookies, dict):
|
||||
cookies = [cookies]
|
||||
await ctx.add_cookies(cookies) # type: ignore
|
||||
page = await ctx.new_page()
|
||||
try:
|
||||
yield page
|
||||
finally:
|
||||
await page.close()
|
||||
await ctx.close()
|
||||
|
||||
@classmethod
|
||||
async def screenshot(
|
||||
cls,
|
||||
url: str,
|
||||
path: Path | str,
|
||||
element: str | list[str],
|
||||
*,
|
||||
wait_time: int | None = None,
|
||||
viewport_size: dict[str, int] | None = None,
|
||||
wait_until: (
|
||||
Literal["domcontentloaded", "load", "networkidle"] | None
|
||||
) = "networkidle",
|
||||
timeout: float | None = None,
|
||||
type_: Literal["jpeg", "png"] | None = None,
|
||||
user_agent: str | None = None,
|
||||
cookies: list[dict[str, Any]] | dict[str, Any] | None = None,
|
||||
**kwargs,
|
||||
) -> UniMessage | None:
|
||||
"""截图，该方法仅用于简单快捷截图，复杂截图请操作 page
|
||||
|
||||
参数:
|
||||
url: 网址
|
||||
path: 存储路径
|
||||
element: 元素选择
|
||||
wait_time: 等待截取超时时间
|
||||
viewport_size: 窗口大小
|
||||
wait_until: 等待类型
|
||||
timeout: 超时限制
|
||||
type_: 保存类型
|
||||
user_agent: user_agent
|
||||
cookies: cookies
|
||||
"""
|
||||
if viewport_size is None:
|
||||
viewport_size = {"width": 2560, "height": 1080}
|
||||
if isinstance(path, str):
|
||||
path = Path(path)
|
||||
wait_time = wait_time * 1000 if wait_time else None
|
||||
element_list = [element] if isinstance(element, str) else element
|
||||
async with cls.new_page(
|
||||
cookies,
|
||||
viewport=viewport_size,
|
||||
user_agent=user_agent,
|
||||
**kwargs,
|
||||
) as page:
|
||||
await page.goto(url, timeout=timeout, wait_until=wait_until)
|
||||
card = page
|
||||
for e in element_list:
|
||||
if not card:
|
||||
return None
|
||||
card = await card.wait_for_selector(e, timeout=wait_time)
|
||||
if card:
|
||||
await card.screenshot(path=path, timeout=timeout, type=type_)
|
||||
return MessageUtils.build_message(path)
|
||||
return None
|
||||
|
||||
|
||||
class BrowserIsNone(Exception):
|
||||
pass
|
||||
async with get_async_client(**kwargs) as client:
|
||||
yield client
|
||||
|
||||
Loading…
Reference in New Issue
Block a user