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# -------------------------------------------------------------------------
# Copyright (c) Microsoft. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# --------------------------------------------------------------------------
import time
import uuid
from datetime import datetime, timedelta
from azure.cosmosdb.table.common import (
AccessPolicy,
ResourceTypes,
AccountPermissions,
)
from azure.cosmosdb.table import (
TableService,
TablePermissions,
)
class TableSasSamples():
def __init__(self, account):
self.account = account
def run_all_samples(self):
self.service = self.account.create_table_service()
self.table_sas()
self.account_sas()
self.table_acl()
self.sas_with_signed_identifiers()
def _create_table(self, prefix='table'):
table_name = '{}{}'.format(prefix, str(uuid.uuid4()).replace('-', ''))
self.service.create_table(table_name)
return table_name
def table_sas(self):
table_name = self._create_table()
entity = {
'PartitionKey': 'test',
'RowKey': 'test1',
'text': 'hello world',
}
self.service.insert_entity(table_name, entity)
# Access only to the entities in the given table
# Query permissions to access entities
# Expires in an hour
token = self.service.generate_table_shared_access_signature(
table_name,
TablePermissions.QUERY,
datetime.utcnow() + timedelta(hours=1),
)
# Create a service and use the SAS
sas_service = TableService(
account_name=self.account.account_name,
sas_token=token,
)
entities = sas_service.query_entities(table_name)
for entity in entities:
print(entity.text) # hello world
self.service.delete_table(table_name)
def account_sas(self):
table_name = self._create_table()
entity = {
'PartitionKey': 'test',
'RowKey': 'test1',
'text': 'hello world',
}
self.service.insert_entity(table_name, entity)
# Access to all entities in all the tables
# Expires in an hour
token = self.service.generate_account_shared_access_signature(
ResourceTypes.OBJECT,
AccountPermissions.READ,
datetime.utcnow() + timedelta(hours=1),
)
# Create a service and use the SAS
sas_service = TableService(
account_name=self.account.account_name,
sas_token=token,
)
entities = list(sas_service.query_entities(table_name))
for entity in entities:
print(entity.text) # hello world
self.service.delete_table(table_name)
def table_acl(self):
table_name = self._create_table()
# Basic
access_policy = AccessPolicy(permission=TablePermissions.QUERY,
expiry=datetime.utcnow() + timedelta(hours=1))
identifiers = {'id': access_policy}
self.service.set_table_acl(table_name, identifiers)
# Wait 30 seconds for acl to propagate
time.sleep(30)
acl = self.service.get_table_acl(table_name) # {id: AccessPolicy()}
# Replaces values, does not merge
access_policy = AccessPolicy(permission=TablePermissions.QUERY,
expiry=datetime.utcnow() + timedelta(hours=1))
identifiers = {'id2': access_policy}
self.service.set_table_acl(table_name, identifiers)
# Wait 30 seconds for acl to propagate
time.sleep(30)
acl = self.service.get_table_acl(table_name) # {id2: AccessPolicy()}
# Clear
self.service.set_table_acl(table_name)
# Wait 30 seconds for acl to propagate
time.sleep(30)
acl = self.service.get_table_acl(table_name) # {}
self.service.delete_table(table_name)
def sas_with_signed_identifiers(self):
table_name = self._create_table()
entity = {
'PartitionKey': 'test',
'RowKey': 'test1',
'text': 'hello world',
}
self.service.insert_entity(table_name, entity)
# Set access policy on table
access_policy = AccessPolicy(permission=TablePermissions.QUERY,
expiry=datetime.utcnow() + timedelta(hours=1))
identifiers = {'id': access_policy}
acl = self.service.set_table_acl(table_name, identifiers)
# Wait 30 seconds for acl to propagate
time.sleep(30)
# Indicates to use the access policy set on the table
token = self.service.generate_table_shared_access_signature(
table_name,
id='id'
)
# Create a service and use the SAS
sas_service = TableService(
account_name=self.account.account_name,
sas_token=token,
)
entities = list(sas_service.query_entities(table_name))
for entity in entities:
print(entity.text) # hello world
self.service.delete_table(table_name)
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