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55 lines
2.0 KiB
Python
55 lines
2.0 KiB
Python
import posixpath
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from collections.abc import Generator
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import oss2 as aliyun_s3 # type: ignore
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from configs import dify_config
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from extensions.storage.base_storage import BaseStorage
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class AliyunOssStorage(BaseStorage):
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"""Implementation for Aliyun OSS storage."""
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def __init__(self):
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super().__init__()
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self.bucket_name = dify_config.ALIYUN_OSS_BUCKET_NAME
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self.folder = dify_config.ALIYUN_OSS_PATH
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oss_auth_method = aliyun_s3.Auth
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region = None
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if dify_config.ALIYUN_OSS_AUTH_VERSION == "v4":
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oss_auth_method = aliyun_s3.AuthV4
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region = dify_config.ALIYUN_OSS_REGION
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oss_auth = oss_auth_method(dify_config.ALIYUN_OSS_ACCESS_KEY, dify_config.ALIYUN_OSS_SECRET_KEY)
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self.client = aliyun_s3.Bucket(
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oss_auth,
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dify_config.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(self.__wrapper_folder_filename(filename), data)
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def load_once(self, filename: str) -> bytes:
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obj = self.client.get_object(self.__wrapper_folder_filename(filename))
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data: bytes = obj.read()
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return data
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def load_stream(self, filename: str) -> Generator:
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obj = self.client.get_object(self.__wrapper_folder_filename(filename))
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while chunk := obj.read(4096):
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yield chunk
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def download(self, filename: str, target_filepath):
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self.client.get_object_to_file(self.__wrapper_folder_filename(filename), target_filepath)
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def exists(self, filename: str):
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return self.client.object_exists(self.__wrapper_folder_filename(filename))
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def delete(self, filename: str):
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self.client.delete_object(self.__wrapper_folder_filename(filename))
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def __wrapper_folder_filename(self, filename: str) -> str:
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return posixpath.join(self.folder, filename) if self.folder else filename
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