add:fronted

apps/__init__.py

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+# @Time    : 2023/8/13 20:43
+# @Author  : Lan
+# @File    : __init__.py.py
+# @Software: PyCharm

apps/base/__init__.py

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+# @Time    : 2023/8/13 20:43
+# @Author  : Lan
+# @File    : __init__.py.py
+# @Software: PyCharm

apps/base/models.py

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+# @Time    : 2023/8/13 20:43
+# @Author  : Lan
+# @File    : models.py
+# @Software: PyCharm
+from datetime import datetime
+from typing import Optional
+
+from tortoise import fields
+from tortoise.models import Model
+from tortoise.contrib.pydantic import pydantic_model_creator
+
+
+class FileCodes(Model):
+    id: Optional[int] = fields.IntField(pk=True)
+    code: Optional[int] = fields.CharField(description='分享码', max_length=255, index=True, unique=True)
+    prefix: Optional[str] = fields.CharField(max_length=255, description='前缀', default='')
+    suffix: Optional[str] = fields.CharField(max_length=255, description='后缀', default='')
+    uuid_file_name: Optional[str] = fields.CharField(max_length=255, description='uuid文件名')
+    file_path: Optional[str] = fields.CharField(max_length=255, description='文件路径')
+    size: Optional[int] = fields.IntField(description='文件大小', default=0)
+
+    expired_at: Optional[datetime] = fields.DatetimeField(null=True, description='过期时间')
+    expired_count: Optional[int] = fields.IntField(description='可用次数', default=0)
+    used_count: Optional[int] = fields.IntField(description='已用次数', default=0)
+
+    created_at: Optional[datetime] = fields.DatetimeField(auto_now_add=True, description='创建时间')
+
+    async def is_expired(self):
+        if self.expired_at:
+            return self.expired_at < datetime.now()
+        else:
+            return self.expired_count != -1 and self.used_count >= self.expired_count
+
+    async def get_file_path(self):
+        return f"{self.file_path}/{self.uuid_file_name}"
+
+
+file_codes_pydantic = pydantic_model_creator(FileCodes, name='FileCodes')

apps/base/utils.py

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+# @Time    : 2023/8/14 01:10
+# @Author  : Lan
+# @File    : utils.py
+# @Software: PyCharm
+import datetime
+import uuid
+import os
+from fastapi import UploadFile
+
+from apps.base.models import FileCodes
+from core.utils import get_random_num, get_random_string
+
+
+async def get_file_path_name(file: UploadFile):
+    """
+    获取文件路径和文件名
+    :param file:
+    :return: {
+        'path': 'share/data/2021/08/13',
+        'suffix': '.jpg',
+        'prefix': 'test',
+        'file_uuid': '44a83bbd70e04c8aa7fd93bfd8c88249',
+        'uuid_file_name': '44a83bbd70e04c8aa7fd93bfd8c88249.jpg',
+        'save_path': 'share/data/2021/08/13/44a83bbd70e04c8aa7fd93bfd8c88249.jpg'
+    }
+    """
+    today = datetime.datetime.now()
+    path = f"share/data/{today.strftime('%Y/%m/%d')}"
+    prefix, suffix = os.path.splitext(file.filename)
+    file_uuid = f"{uuid.uuid4().hex}"
+    uuid_file_name = f"{file_uuid}{suffix}"
+    save_path = f"{path}/{uuid_file_name}"
+    return path, suffix, prefix, uuid_file_name, file_uuid, save_path
+
+
+async def get_expire_info(expire_value: int, expire_style: str):
+    """
+    获取过期信息
+    :param expire_value:
+    :param expire_style:
+    :return: expired_at 过期时间, expired_count 可用次数, used_count 已用次数, code 随机码
+    """
+    expired_count, used_count, now, code = -1, 0, datetime.datetime.now(), None
+
+    if expire_style == 'day':
+        expired_at = now + datetime.timedelta(days=expire_value)
+    elif expire_style == 'hour':
+        expired_at = now + datetime.timedelta(hours=expire_value)
+    elif expire_style == 'minute':
+        expired_at = now + datetime.timedelta(minutes=expire_value)
+    elif expire_style == 'count':
+        expired_at = now + datetime.timedelta(days=1)
+        expired_count = expire_value
+    elif expire_style == 'forever':
+        expired_at = None
+        code = await get_random_code(style='string')
+    else:
+        expired_at = now + datetime.timedelta(days=1)
+    if not code:
+        code = await get_random_code()
+    return expired_at, expired_count, used_count, code
+
+
+async def get_random_code(style='num'):
+    """
+    获取随机字符串
+    :return:
+    """
+    while True:
+        code = await get_random_num() if style == 'num' else await get_random_string()
+        if not await FileCodes.filter(code=code).exists():
+            return code