| import base64 |
| import io |
| import json |
| from collections.abc import Generator |
|
|
| from google.cloud import storage as google_cloud_storage |
|
|
| from configs import dify_config |
| from extensions.storage.base_storage import BaseStorage |
|
|
|
|
| class GoogleCloudStorage(BaseStorage): |
| """Implementation for Google Cloud storage.""" |
|
|
| def __init__(self): |
| super().__init__() |
|
|
| self.bucket_name = dify_config.GOOGLE_STORAGE_BUCKET_NAME |
| service_account_json_str = dify_config.GOOGLE_STORAGE_SERVICE_ACCOUNT_JSON_BASE64 |
| |
| if service_account_json_str: |
| service_account_json = base64.b64decode(service_account_json_str).decode("utf-8") |
| |
| service_account_obj = json.loads(service_account_json) |
| self.client = google_cloud_storage.Client.from_service_account_info(service_account_obj) |
| else: |
| self.client = google_cloud_storage.Client() |
|
|
| def save(self, filename, data): |
| bucket = self.client.get_bucket(self.bucket_name) |
| blob = bucket.blob(filename) |
| with io.BytesIO(data) as stream: |
| blob.upload_from_file(stream) |
|
|
| def load_once(self, filename: str) -> bytes: |
| bucket = self.client.get_bucket(self.bucket_name) |
| blob = bucket.get_blob(filename) |
| data = blob.download_as_bytes() |
| return data |
|
|
| def load_stream(self, filename: str) -> Generator: |
| bucket = self.client.get_bucket(self.bucket_name) |
| blob = bucket.get_blob(filename) |
| with blob.open(mode="rb") as blob_stream: |
| while chunk := blob_stream.read(4096): |
| yield chunk |
|
|
| def download(self, filename, target_filepath): |
| bucket = self.client.get_bucket(self.bucket_name) |
| blob = bucket.get_blob(filename) |
| blob.download_to_filename(target_filepath) |
|
|
| def exists(self, filename): |
| bucket = self.client.get_bucket(self.bucket_name) |
| blob = bucket.blob(filename) |
| return blob.exists() |
|
|
| def delete(self, filename): |
| bucket = self.client.get_bucket(self.bucket_name) |
| bucket.delete_blob(filename) |
|
|
