mirror of
https://github.com/langgenius/dify.git
synced 2024-11-16 19:59:50 +08:00
e2a78888b9
Co-authored-by: kotamat <kota1681@gmail.com> Co-authored-by: crazywoola <427733928@qq.com>
62 lines
2.3 KiB
Python
62 lines
2.3 KiB
Python
import base64
|
|
import io
|
|
from collections.abc import Generator
|
|
from contextlib import closing
|
|
|
|
from flask import Flask
|
|
from google.cloud import storage as GoogleCloudStorage
|
|
|
|
from extensions.storage.base_storage import BaseStorage
|
|
|
|
|
|
class GoogleStorage(BaseStorage):
|
|
"""Implementation for google storage.
|
|
"""
|
|
def __init__(self, app: Flask):
|
|
super().__init__(app)
|
|
app_config = self.app.config
|
|
self.bucket_name = app_config.get('GOOGLE_STORAGE_BUCKET_NAME')
|
|
service_account_json_str = app_config.get('GOOGLE_STORAGE_SERVICE_ACCOUNT_JSON_BASE64')
|
|
# if service_account_json_str is empty, use Application Default Credentials
|
|
if service_account_json_str:
|
|
service_account_json = base64.b64decode(service_account_json_str).decode('utf-8')
|
|
self.client = GoogleCloudStorage.Client.from_service_account_info(service_account_json)
|
|
else:
|
|
self.client = GoogleCloudStorage.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:
|
|
def generate(filename: str = filename) -> Generator:
|
|
bucket = self.client.get_bucket(self.bucket_name)
|
|
blob = bucket.get_blob(filename)
|
|
with closing(blob.open(mode='rb')) as blob_stream:
|
|
while chunk := blob_stream.read(4096):
|
|
yield chunk
|
|
return generate()
|
|
|
|
def download(self, filename, target_filepath):
|
|
bucket = self.client.get_bucket(self.bucket_name)
|
|
blob = bucket.get_blob(filename)
|
|
with open(target_filepath, "wb") as my_blob:
|
|
blob_data = blob.download_blob()
|
|
blob_data.readinto(my_blob)
|
|
|
|
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) |