from time import time, sleep
from copy import deepcopy
from base64 import b64decode
+from uuid import uuid4
__author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
super().__init__(logger_name, lock)
self.client = None
self.db = None
+ self.database_key = None
+ self.secret_obtained = False
+ # ^ This is used to know if database serial has been got. Database is inited by NBI, who generates the serial
+ # In case it is not ready when connected, it should be got later on before any decrypt operation
+
+ def get_secret_key(self):
+ if self.secret_obtained:
+ return
+
+ self.secret_key = None
+ if self.database_key:
+ self.set_secret_key(self.database_key)
+ version_data = self.get_one("admin", {"_id": "version"}, fail_on_empty=False, fail_on_more=True)
+ if version_data and version_data.get("serial"):
+ self.set_secret_key(b64decode(version_data["serial"]))
+ self.secret_obtained = True
def db_connect(self, config, target_version=None):
"""
self.logger = logging.getLogger(config["logger_name"])
master_key = config.get("commonkey") or config.get("masterpassword")
if master_key:
+ self.database_key = master_key
self.set_secret_key(master_key)
if config.get("uri"):
self.client = MongoClient(config["uri"])
raise DbException("Invalid database version {}. Expected {}".format(db_version, target_version))
# get serial
if version_data and version_data.get("serial"):
+ self.secret_obtained = True
self.set_secret_key(b64decode(version_data["serial"]))
self.logger.info("Connected to database {} version {}".format(config["name"], db_version))
return
except Exception as e: # TODO refine
raise DbException(e)
+ def create_list(self, table, indata_list):
+ """
+ Add several entries at once
+ :param table: collection or table
+ :param indata_list: content list to be added.
+ :return: the list of inserted '_id's. Exception on error
+ """
+ try:
+ for item in indata_list:
+ if item.get("_id") is None:
+ item["_id"] = str(uuid4())
+ with self.lock:
+ collection = self.db[table]
+ data = collection.insert_many(indata_list)
+ return data.inserted_ids
+ except Exception as e: # TODO refine
+ raise DbException(e)
+
def set_one(self, table, q_filter, update_dict, fail_on_empty=True, unset=None, pull=None, push=None):
"""
Modifies an entry at database
except Exception as e: # TODO refine
raise DbException(e)
- def set_list(self, table, q_filter, update_dict):
+ def set_list(self, table, q_filter, update_dict, unset=None, pull=None, push=None):
"""
Modifies al matching entries at database
:param table: collection or table
:param q_filter: Filter
:param update_dict: Plain dictionary with the content to be updated. It is a dot separated keys and a value
+ :param unset: Plain dictionary with the content to be removed if exist. It is a dot separated keys, value is
+ ignored. If not exist, it is ignored
+ :param pull: Plain dictionary with the content to be removed from an array. It is a dot separated keys and value
+ if exist in the array is removed. If not exist, it is ignored
+ :param push: Plain dictionary with the content to be appended to an array. It is a dot separated keys and value
+ is appended to the end of the array
:return: Dict with the number of entries modified
"""
try:
+ db_oper = {}
+ if update_dict:
+ db_oper["$set"] = update_dict
+ if unset:
+ db_oper["$unset"] = unset
+ if pull:
+ db_oper["$pull"] = pull
+ if push:
+ db_oper["$push"] = push
with self.lock:
collection = self.db[table]
- rows = collection.update_many(self._format_filter(q_filter), {"$set": update_dict})
+ rows = collection.update_many(self._format_filter(q_filter), db_oper)
return {"modified": rows.modified_count}
except Exception as e: # TODO refine
raise DbException(e)