def make_blob_sas_url(account_name,
account_key,
container_name,
blob_name,
permission='w',
duration=16):
"""
Generate a Blob SAS URL to allow a client to upload a file.
account_name: Storage account name.
account_key: Storage account key.
container_name: Storage container.
blob_name: Blob name.
duration: A timedelta representing duration until SAS expiration.
SAS start date will be utcnow() minus one minute. Expiry date
is start date plus duration.
Returns the SAS URL.
"""
sas = SharedAccessSignature(account_name, account_key)
resource_path = '%s/%s' % (container_name, blob_name)
date_format = "%Y-%m-%dT%H:%M:%SZ"
start = datetime.datetime.utcnow() - datetime.timedelta(minutes=5)
expiry = start + datetime.timedelta(minutes=duration)
sap = SharedAccessPolicy(
AccessPolicy(start.strftime(date_format), expiry.strftime(date_format),
permission))
signed_query = sas.generate_signed_query_string(resource_path,
RESOURCE_BLOB, sap)
sas.permission_set = [Permission('/' + resource_path, signed_query)]
res = WebResource()
res.properties[SIGNED_RESOURCE_TYPE] = RESOURCE_BLOB
res.properties[SHARED_ACCESS_PERMISSION] = permission
res.path = '/{0}'.format(resource_path)
res.request_url = 'https://{0}.blob.core.windows.net/{1}/{2}'.format(
account_name, container_name, blob_name)
res = sas.sign_request(res)
return res.request_url
def make_blob_sas_url(account_name,
account_key,
container_name,
blob_name,
duration=16):
"""
Generate a Blob SAS URL to allow a client to upload a file.
account_name: Storage account name.
account_key: Storage account key.
container_name: Storage container.
blob_name: Blob name.
duration: A timedelta representing duration until SAS expiration.
SAS start date will be utcnow() minus one minute. Expiry date
is start date plus duration.
Returns the SAS URL.
"""
sas = SharedAccessSignature(account_name, account_key)
resource_path = '%s/%s' % (container_name, blob_name)
date_format = "%Y-%m-%dT%H:%M:%SZ"
start = datetime.datetime.utcnow() - datetime.timedelta(minutes=5)
expiry = start + datetime.timedelta(minutes=duration)
sap = SharedAccessPolicy(AccessPolicy(
start.strftime(date_format),
expiry.strftime(date_format),
'w'))
signed_query = sas.generate_signed_query_string(resource_path, RESOURCE_BLOB, sap)
sas.permission_set = [Permission('/' + resource_path, signed_query)]
res = WebResource()
res.properties[SIGNED_RESOURCE_TYPE] = RESOURCE_BLOB
res.properties[SHARED_ACCESS_PERMISSION] = 'w'
res.path = '/{0}'.format(resource_path)
res.request_url = 'https://{0}.blob.core.windows.net/{1}/{2}'.format(account_name, container_name, blob_name)
res = sas.sign_request(res)
return res.request_url
