93 lines
3.4 KiB
Python
93 lines
3.4 KiB
Python
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# @Time : 2023/8/14 01:10
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# @Author : Lan
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# @File : utils.py
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# @Software: PyCharm
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import datetime
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import uuid
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import os
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from fastapi import UploadFile, HTTPException
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from apps.base.depends import IPRateLimit
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from apps.base.models import FileCodes
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from core.settings import settings
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from core.utils import get_random_num, get_random_string, max_save_times_desc
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async def get_file_path_name(file: UploadFile):
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"""
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获取文件路径和文件名
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:param file:
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:return: {
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'path': 'share/data/2021/08/13',
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'suffix': '.jpg',
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'prefix': 'test',
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'file_uuid': '44a83bbd70e04c8aa7fd93bfd8c88249',
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'uuid_file_name': '44a83bbd70e04c8aa7fd93bfd8c88249.jpg',
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'save_path': 'share/data/2021/08/13/44a83bbd70e04c8aa7fd93bfd8c88249.jpg'
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}
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"""
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today = datetime.datetime.now()
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path = f"share/data/{today.strftime('%Y/%m/%d')}"
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prefix, suffix = os.path.splitext(file.filename)
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file_uuid = f"{uuid.uuid4().hex}"
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uuid_file_name = f"{file_uuid}{suffix}"
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save_path = f"{path}/{uuid_file_name}"
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return path, suffix, prefix, uuid_file_name, save_path
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async def get_expire_info(expire_value: int, expire_style: str):
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"""
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获取过期信息
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:param expire_value:
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:param expire_style:
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:return: expired_at 过期时间, expired_count 可用次数, used_count 已用次数, code 随机码
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"""
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expired_count, used_count, now, code = -1, 0, datetime.datetime.now(), None
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if int(settings.max_save_seconds) > 0:
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max_timedelta = datetime.timedelta(seconds=settings.max_save_seconds)
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detail = await max_save_times_desc(settings.max_save_seconds)
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detail = f'限制最长时间为 {detail[0]}，可换用其他方式'
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else:
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max_timedelta = datetime.timedelta(days=7)
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detail = '限制最长时间为 7天，可换用其他方式'
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if expire_style == 'day':
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if datetime.timedelta(days=expire_value) > max_timedelta:
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raise HTTPException(status_code=403, detail=detail)
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expired_at = now + datetime.timedelta(days=expire_value)
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elif expire_style == 'hour':
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if datetime.timedelta(hours=expire_value) > max_timedelta:
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raise HTTPException(status_code=403, detail=detail)
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expired_at = now + datetime.timedelta(hours=expire_value)
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elif expire_style == 'minute':
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if datetime.timedelta(minutes=expire_value) > max_timedelta:
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raise HTTPException(status_code=403, detail=detail)
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expired_at = now + datetime.timedelta(minutes=expire_value)
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elif expire_style == 'count':
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expired_at = now + datetime.timedelta(days=1)
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expired_count = expire_value
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elif expire_style == 'forever':
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expired_at = None
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code = await get_random_code(style='string')
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else:
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expired_at = now + datetime.timedelta(days=1)
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if not code:
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code = await get_random_code()
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return expired_at, expired_count, used_count, code
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async def get_random_code(style='num'):
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"""
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获取随机字符串
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:return:
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"""
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while True:
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code = await get_random_num() if style == 'num' else await get_random_string()
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if not await FileCodes.filter(code=code).exists():
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return code
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ip_limit = {
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'error': IPRateLimit(count=settings.uploadCount, minutes=settings.errorMinute),
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'upload': IPRateLimit(count=settings.errorCount, minutes=settings.errorMinute)
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}
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