Lan
83 lines
3.1 KiB
Python
83 lines
3.1 KiB
Python
import datetime
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import os
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import uuid
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from fastapi import UploadFile, HTTPException
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from typing import Optional, Tuple
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from apps.base.dependencies 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) -> Tuple[str, str, str, str, str]:
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"""获取文件路径和文件名"""
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today = datetime.datetime.now()
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storage_path = settings.storage_path.strip('/') # 移除开头和结尾的斜杠
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file_uuid = uuid.uuid4().hex
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# 使用 UUID 作为子目录名
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base_path = f"share/data/{today.strftime('%Y/%m/%d')}/{file_uuid}"
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# 如果设置了存储路径，将其添加到基础路径中
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path = f"{storage_path}/{base_path}" if storage_path else base_path
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prefix, suffix = os.path.splitext(file.filename)
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# 保持原始文件名
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save_path = f"{path}/{file.filename}"
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return path, suffix, prefix, file.filename, save_path
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async def get_expire_info(expire_value: int, expire_style: str) -> Tuple[Optional[datetime.datetime], int, int, str]:
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"""获取过期信息"""
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expired_count, used_count = -1, 0
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now = datetime.datetime.now()
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code = None
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max_timedelta = datetime.timedelta(seconds=settings.max_save_seconds) if settings.max_save_seconds > 0 else datetime.timedelta(days=7)
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detail = await max_save_times_desc(settings.max_save_seconds) if settings.max_save_seconds > 0 else '7天'
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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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expire_styles = {
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'day': lambda: now + datetime.timedelta(days=expire_value),
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'hour': lambda: now + datetime.timedelta(hours=expire_value),
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'minute': lambda: now + datetime.timedelta(minutes=expire_value),
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'count': lambda: (now + datetime.timedelta(days=1), expire_value),
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'forever': lambda: (None, None), # 修改这里
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}
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if expire_style in expire_styles:
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result = expire_styles[expire_style]()
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if isinstance(result, tuple):
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expired_at, extra = result
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if expire_style == 'count':
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expired_count = extra
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elif expire_style == 'forever':
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code = await get_random_code(style='string') # 移动到这里
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else:
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expired_at = result
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if expired_at and expired_at - now > max_timedelta:
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raise HTTPException(status_code=403, detail=detail)
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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') -> str:
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"""获取随机字符串"""
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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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