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# ================================================================================
# Copyright (c) 2019-2020 AT&T Intellectual Property. 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.
# ============LICENSE_END=========================================================
import base64
import collections
import copy
import os
from Crypto import Random
from Crypto.Cipher import PKCS1_v1_5
from Crypto.Hash import SHA
from Crypto.PublicKey import RSA
def update_dict(d, u):
"""Recursively updates dict
Update dict d with dict u
"""
for k, v in u.items():
if isinstance(v, collections.Mapping):
r = update_dict(d.get(k, {}), v)
d[k] = r
else:
d[k] = u[k]
return d
def replace_token(configure_content):
try:
with open("/opt/app/config-map/dcae-k8s-cluster-token",'r') as fh:
dcae_token = fh.readline().rstrip('\n')
new_config = copy.deepcopy(configure_content)
# override the default-user token
ix=0
for user in new_config['users'][:]:
if user['name'] == "default-user":
new_config['users'][ix] = {
"name": "default-user",
"user": {
"token": dcae_token
}
}
ix += 1
return new_config
except Exception as e:
return configure_content
def decrypt(b64_ciphertext):
"""returns decrypted b64_ciphertext that was encoded like this:
echo "cleartext" | openssl pkeyutl -encrypt -pubin -inkey rsa.pub | base64 --wrap=0
requires private key in environment variable EOMUSER_PRIVATE
"""
if len(b64_ciphertext) <= 30: # For transition, assume short values are not encrypted
return b64_ciphertext
try:
ciphertext = base64.b64decode(b64_ciphertext)
key = RSA.importKey(os.getenv('EOMUSER_PRIVATE'))
cleartext = PKCS1_v1_5.new(key).decrypt(ciphertext, Random.new().read(15+SHA.digest_size))
except Exception as e:
return b64_ciphertext
return cleartext
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