lan
141 lines
4.7 KiB
Python
141 lines
4.7 KiB
Python
import os
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import asyncio
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from datetime import datetime
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from pathlib import Path
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from typing import BinaryIO
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from fastapi import UploadFile
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from core.database import Codes
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from settings import settings
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if settings.STORAGE_ENGINE == 'aliyunsystem':
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try:
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import oss2
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except ImportError:
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os.system('pip install oss2')
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import oss2
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class AliyunFileStorage:
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def __init__(self):
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auth = oss2.Auth(settings.KeyId, settings.KeySecret)
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self.bucket = oss2.Bucket(auth, settings.OSS_ENDPOINT, settings.BUCKET_NAME)
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def upload_file(self, upload_filepath, remote_filepath):
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self.bucket.put_object_from_file(remote_filepath, upload_filepath)
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async def get_text(self, file: UploadFile, key: str):
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ext = file.filename.split('.')[-1]
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now = datetime.now()
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path = f"FileCodeBox/upload/{now.year}/{now.month}/{now.day}"
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text = f"{path}/{f'{key}.{ext}'}"
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return f"https://{settings.BUCKET_NAME}.{settings.OSS_ENDPOINT}/{text}"
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async def get_url(self, info: Codes):
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text = info.text.strip(f"https://{settings.BUCKET_NAME}.{settings.OSS_ENDPOINT}/")
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url = self.bucket.sign_url('GET', text, settings.ACCESSTIME, slash_safe=True)
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return url
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@staticmethod
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async def get_size(file: UploadFile):
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f = file.file
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f.seek(0, os.SEEK_END)
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size = f.tell()
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f.seek(0, os.SEEK_SET)
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return size
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@staticmethod
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def _save(filepath, file: BinaryIO):
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with open(filepath, 'wb') as f:
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chunk_size = 256 * 1024
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chunk = file.read(chunk_size)
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while chunk:
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f.write(chunk)
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chunk = file.read(chunk_size)
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async def save_file(self, file: UploadFile, remote_filepath: str):
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now = int(datetime.now().timestamp())
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upload_filepath = settings.DATA_ROOT + str(now)
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await asyncio.to_thread(self._save, upload_filepath, file.file)
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self.upload_file(upload_filepath, remote_filepath)
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remote_filepath = remote_filepath.strip(f"https://{settings.BUCKET_NAME}.{settings.OSS_ENDPOINT}/")
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self.upload_file(upload_filepath, remote_filepath)
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await asyncio.to_thread(os.remove, upload_filepath)
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async def delete_files(self, texts):
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tasks = [self.delete_file(text) for text in texts]
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await asyncio.gather(*tasks)
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async def delete_file(self, text: str):
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text = text.strip(f"https://{settings.BUCKET_NAME}.{settings.OSS_ENDPOINT}/")
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self.bucket.delete_object(text)
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class FileSystemStorage:
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def __init__(self):
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self.DATA_ROOT = Path(settings.DATA_ROOT)
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self.STATIC_URL = settings.STATIC_URL
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self.NAME = "filesystem"
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self.DOWN_PATH = '/select'
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async def get_filepath(self, text: str):
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return self.DATA_ROOT / text.lstrip(self.STATIC_URL + '/')
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async def get_url(self, info: Codes):
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return f'{self.DOWN_PATH}?code={info.code}'
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async def get_text(self, file: UploadFile, key: str):
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ext = file.filename.split('.')[-1]
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now = datetime.now()
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path = self.DATA_ROOT / f"upload/{now.year}/{now.month}/{now.day}/"
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if not path.exists():
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path.mkdir(parents=True)
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text = f"{self.STATIC_URL}/{(path / f'{key}.{ext}').relative_to(self.DATA_ROOT)}"
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return text
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@staticmethod
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async def get_size(file: UploadFile):
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f = file.file
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f.seek(0, os.SEEK_END)
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size = f.tell()
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f.seek(0, os.SEEK_SET)
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return size
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@staticmethod
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def _save(filepath, file: BinaryIO):
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with open(filepath, 'wb') as f:
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chunk_size = 256 * 1024
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chunk = file.read(chunk_size)
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while chunk:
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f.write(chunk)
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chunk = file.read(chunk_size)
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async def save_file(self, file: UploadFile, text: str):
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filepath = await self.get_filepath(text)
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await asyncio.to_thread(self._save, filepath, file.file)
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async def delete_file(self, text: str):
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filepath = await self.get_filepath(text)
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if filepath.exists():
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await asyncio.to_thread(os.remove, filepath)
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await asyncio.to_thread(self.judge_delete_folder, filepath)
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async def delete_files(self, texts):
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tasks = [self.delete_file(text) for text in texts]
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await asyncio.gather(*tasks)
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def judge_delete_folder(self, filepath):
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current = filepath.parent
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while current != self.DATA_ROOT:
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if not list(current.iterdir()):
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os.rmdir(current)
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current = current.parent
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else:
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break
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STORAGE_ENGINE = {
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"filesystem": FileSystemStorage,
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"aliyunsystem": AliyunFileStorage
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}
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