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57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
from collections.abc import Generator
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from contextlib import closing
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import oss2 as aliyun_s3
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from flask import Flask
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from extensions.storage.base_storage import BaseStorage
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class AliyunStorage(BaseStorage):
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"""Implementation for aliyun storage.
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"""
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def __init__(self, app: Flask):
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super().__init__(app)
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app_config = self.app.config
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self.bucket_name = app_config.get('ALIYUN_OSS_BUCKET_NAME')
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oss_auth_method = aliyun_s3.Auth
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region = None
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if app_config.get('ALIYUN_OSS_AUTH_VERSION') == 'v4':
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oss_auth_method = aliyun_s3.AuthV4
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region = app_config.get('ALIYUN_OSS_REGION')
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oss_auth = oss_auth_method(app_config.get('ALIYUN_OSS_ACCESS_KEY'), app_config.get('ALIYUN_OSS_SECRET_KEY'))
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self.client = aliyun_s3.Bucket(
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oss_auth,
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app_config.get('ALIYUN_OSS_ENDPOINT'),
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self.bucket_name,
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connect_timeout=30,
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region=region,
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)
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def save(self, filename, data):
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self.client.put_object(filename, data)
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def load_once(self, filename: str) -> bytes:
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with closing(self.client.get_object(filename)) as obj:
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data = obj.read()
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return data
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def load_stream(self, filename: str) -> Generator:
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def generate(filename: str = filename) -> Generator:
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with closing(self.client.get_object(filename)) as obj:
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while chunk := obj.read(4096):
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yield chunk
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return generate()
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def download(self, filename, target_filepath):
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self.client.get_object_to_file(filename, target_filepath)
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def exists(self, filename):
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return self.client.object_exists(filename)
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def delete(self, filename):
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self.client.delete_object(filename)
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