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Allow to set password_encryption algorithm #144

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Allow to set password_encryption algorithm #144

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10 changes: 8 additions & 2 deletions SecretsManagerRDSPostgreSQLRotationSingleUser/lambda_function.py
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,8 @@ def lambda_handler(event, context):
# Setup the client
service_client = boto3.client('secretsmanager', endpoint_url=os.environ['SECRETS_MANAGER_ENDPOINT'])

password_encryption = os.environ.get('PASSWORD_ENCRYPTION')

# Make sure the version is staged correctly
metadata = service_client.describe_secret(SecretId=arn)
if "RotationEnabled" in metadata and not metadata['RotationEnabled']:
Expand All @@ -74,7 +76,7 @@ def lambda_handler(event, context):
create_secret(service_client, arn, token)

elif step == "setSecret":
set_secret(service_client, arn, token)
set_secret(service_client, arn, token, password_encryption)

elif step == "testSecret":
test_secret(service_client, arn, token)
Expand Down Expand Up @@ -121,7 +123,7 @@ def create_secret(service_client, arn, token):
logger.info("createSecret: Successfully put secret for ARN %s and version %s." % (arn, token))


def set_secret(service_client, arn, token):
def set_secret(service_client, arn, token, password_encryption):
"""Set the pending secret in the database

This method tries to login to the database with the AWSPENDING secret and returns on success. If that fails, it
Expand Down Expand Up @@ -199,6 +201,10 @@ def set_secret(service_client, arn, token):
cur.execute("SELECT quote_ident(%s)", (pending_dict['username'],))
escaped_username = cur.fetchone()[0]

# Set encryption algorithm
if password_encryption:
cur.execute("SET password_encryption=%s", (password_encryption,))

alter_role = "ALTER USER %s" % escaped_username
cur.execute(alter_role + " WITH PASSWORD %s", (pending_dict['password'],))
conn.commit()
Expand Down