def sign_url(blob: storage.Blob, *args, **kwargs):
"""cloudstorage signed url to download cloudstorage object without login
Docs : https://cloud.google.com/storage/docs/access-control?hl=bg#Signed-URLs
API : https://cloud.google.com/storage/docs/reference-methods?hl=bg#getobject
"""
if config.DEBUG:
return blob.generate_signed_url(*args, **kwargs)
auth_request = Request()
signing_credentials = compute_engine.IDTokenCredentials(
auth_request,
"",
service_account_email=
"*****@*****.**",
)
return blob.generate_signed_url(*args,
**kwargs,
credentials=signing_credentials,
version="v4")
def generate_download_signed_url_v4(blob: storage.Blob, download_name: str):
"""Generates a v4 signed URL for downloading a blob.
Note that this method requires a service account key file. You can not use
this if you are using Application Default Credentials from Google Compute
Engine or from the Google Cloud SDK.
"""
url = blob.generate_signed_url(
version="v4",
expiration=datetime.timedelta(minutes=60),
credentials=signing_credentials,
response_disposition=f'attachment;filename={download_name}',
response_type='application/pdf'
)
return url
