| import base64 | |
| import hashlib | |
| from collections.abc import Generator | |
| from baidubce.auth.bce_credentials import BceCredentials | |
| from baidubce.bce_client_configuration import BceClientConfiguration | |
| from baidubce.services.bos.bos_client import BosClient | |
| from configs import dify_config | |
| from extensions.storage.base_storage import BaseStorage | |
| class BaiduObsStorage(BaseStorage): | |
| """Implementation for Baidu OBS storage.""" | |
| def __init__(self): | |
| super().__init__() | |
| self.bucket_name = dify_config.BAIDU_OBS_BUCKET_NAME | |
| client_config = BceClientConfiguration( | |
| credentials=BceCredentials( | |
| access_key_id=dify_config.BAIDU_OBS_ACCESS_KEY, | |
| secret_access_key=dify_config.BAIDU_OBS_SECRET_KEY, | |
| ), | |
| endpoint=dify_config.BAIDU_OBS_ENDPOINT, | |
| ) | |
| self.client = BosClient(config=client_config) | |
| def save(self, filename, data): | |
| md5 = hashlib.md5() | |
| md5.update(data) | |
| content_md5 = base64.standard_b64encode(md5.digest()) | |
| self.client.put_object( | |
| bucket_name=self.bucket_name, key=filename, data=data, content_length=len(data), content_md5=content_md5 | |
| ) | |
| def load_once(self, filename: str) -> bytes: | |
| response = self.client.get_object(bucket_name=self.bucket_name, key=filename) | |
| return response.data.read() | |
| def load_stream(self, filename: str) -> Generator: | |
| response = self.client.get_object(bucket_name=self.bucket_name, key=filename).data | |
| while chunk := response.read(4096): | |
| yield chunk | |
| def download(self, filename, target_filepath): | |
| self.client.get_object_to_file(bucket_name=self.bucket_name, key=filename, file_name=target_filepath) | |
| def exists(self, filename): | |
| res = self.client.get_object_meta_data(bucket_name=self.bucket_name, key=filename) | |
| if res is None: | |
| return False | |
| return True | |
| def delete(self, filename): | |
| self.client.delete_object(bucket_name=self.bucket_name, key=filename) | |