72 lines
2.7 KiB
Python
72 lines
2.7 KiB
Python
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import traceback
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from typing import Union
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import aiohttp
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import filetype as ft
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from tenacity import retry, wait_fixed, stop_after_attempt
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from core.logger import Logger
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from .cache import random_cache_path
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@retry(stop=stop_after_attempt(3), wait=wait_fixed(3), reraise=True)
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async def get_url(url: str, status_code: int = False, headers: dict = None, fmt=None, log=False):
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"""利用AioHttp获取指定url的内容。
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:param url: 需要获取的url。
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:param status_code: 指定请求到的状态码，若不符则抛出ValueError。
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:param headers: 请求时使用的http头。
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:param fmt: 指定返回的格式。
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:param log: 是否输出日志。
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:returns: 指定url的内容（字符串）。
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"""
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async with aiohttp.ClientSession(headers=headers) as session:
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async with session.get(url, timeout=aiohttp.ClientTimeout(total=20), headers=headers) as req:
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if log:
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Logger.info(await req.read())
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if status_code and req.status != status_code:
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raise ValueError(f'{str(req.status)}[Ke:Image,path=https://http.cat/{str(req.status)}.jpg]')
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if fmt is not None:
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if hasattr(req, fmt):
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return await getattr(req, fmt)()
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else:
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raise ValueError(f"NoSuchMethod: {fmt}")
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else:
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text = await req.text()
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return text
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@retry(stop=stop_after_attempt(3), wait=wait_fixed(3), reraise=True)
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async def post_url(url: str, data: any, headers: dict = None):
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'''发送POST请求。
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:param url: 需要发送的url。
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:param data: 需要发送的数据。
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:param headers: 请求时使用的http头。
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:returns: 发送请求后的响应。'''
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async with aiohttp.ClientSession(headers=headers) as session:
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async with session.post(url, data=data, headers=headers) as req:
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return await req.text()
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@retry(stop=stop_after_attempt(3), wait=wait_fixed(3), reraise=True)
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async def download_to_cache(link: str) -> Union[str, bool]:
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'''利用AioHttp下载指定url的内容，并保存到缓存（./cache目录）。
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:param link: 需要获取的link。
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:returns: 文件的相对路径，若获取失败则返回False。'''
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try:
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async with aiohttp.ClientSession() as session:
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async with session.get(link) as resp:
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res = await resp.read()
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ftt = ft.match(res).extension
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path = f'{random_cache_path()}.{ftt}'
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with open(path, 'wb+') as file:
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file.write(res)
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return path
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except:
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Logger.error(traceback.format_exc())
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return False
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__all__ = ['get_url', 'post_url', 'download_to_cache']
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