def deleteUser(userBackend: CSVBackend, username: str, yes: bool):
"""
Deletes a user from the backend.
:param userBackend:
:param username:
:param yes:
"""
# First ask for confirmation if the server is not running.
temp = "\nPlease make sure that the AlertR Server is not running "
temp += "while deleting a user.\nOtherwise it can lead to an "
temp += "inconsistent state and a corrupted database.\n"
temp += "Are you sure to continue?"
print(temp)
if not userConfirmation(yes):
sys.exit(0)
if username is None:
allUsernames = listUsers(userBackend)
while True:
userOptionStr = input("Choose number of username to delete: ")
userOption = 0
try:
userOption = int(userOptionStr)
except Exception:
pass
if 0 < userOption <= len(allUsernames):
username = allUsernames[userOption - 1]
break
else:
print("Invalid option. Please retry.")
# Check if the username exists.
if not userBackend.userExists(username):
logging.error("[%s]: Username '%s' does not exist." %
(fileName, username))
sys.exit(1)
if userBackend.deleteUser(username):
userBackend.writeUserdata()
logging.info("[%s]: Deleting user successful." % fileName)
else:
logging.error("[%s]: Deleting user failed." % fileName)
sys.exit(1)
def modifyUser(userBackend: CSVBackend, username: str, password: str,
nodeType: str, instance: str, yes: bool, updater: Updater):
"""
Modifies a user in the backend.
:param userBackend:
:param username:
:param password:
:param nodeType:
:param instance:
:param yes:
:param updater:
"""
# First ask for confirmation if the server is not running.
temp = "\nPlease make sure that the AlertR Server is not running "
temp += "while modifying a user.\nOtherwise it can lead to an "
temp += "inconsistent state and a corrupted database.\n"
temp += "Are you sure to continue?"
print(temp)
if not userConfirmation(yes):
sys.exit(0)
# If we have no username given, ask for one.
if username is None:
allUsernames = listUsers(userBackend)
while True:
userOptionStr = input("Choose number of username to modify: ")
userOption = 0
try:
userOption = int(userOptionStr)
except Exception:
pass
if 0 < userOption <= len(allUsernames):
username = allUsernames[userOption - 1]
break
else:
print("Invalid option. Please retry.")
# Check if the username exists.
if not userBackend.userExists(username):
logging.error("[%s]: Username '%s' does not exist." %
(fileName, username))
sys.exit(1)
# Ask for value to change if none was given via argument.
if password is None and nodeType is None and instance is None:
print("1. Change password.")
print("2. Change instance and node type.")
userOption = 0
while True:
userOptionStr = input("Please choose an option: ")
try:
userOption = int(userOptionStr)
except Exception:
pass
if 0 < userOption < 3:
break
else:
print("Invalid option. Please retry.")
# Change password.
if userOption == 1:
while True:
pw1 = getpass.getpass("Please enter password:\n")
pw2 = getpass.getpass("Please verify password:\n")
if pw1 == pw2:
password = pw1
break
else:
print("Passwords do not match. Please retry.")
# Change instance and node type.
elif userOption == 2:
# Give user a list to choose from when we are not in offline mode.
if updater is not None:
nodeType, instance = chooseNodeTypeAndInstance(updater)
# If no node type and instance is chosen until now, ask user.
if nodeType not in validNodeTypes:
while True:
nodeType = input("Please enter node type:\n").lower()
if nodeType in validNodeTypes:
break
else:
print(
"Only valid node types are: 'sensor', 'manager', 'alert'. Please retry."
)
if instance is None:
instance = input("Please enter instance:\n")
# Change password.
if password is not None:
if userBackend.changePassword(username, password):
userBackend.writeUserdata()
logging.info("[%s]: Changing password of user successful." %
fileName)
else:
logging.error("[%s]: Changing password of user failed." % fileName)
sys.exit(1)
# Change node type and instance.
if (nodeType is None or instance is None) and nodeType != instance:
logging.error(
"[%s]: Node type and instance have to be modified together." %
fileName)
sys.exit(1)
elif nodeType is not None and instance is not None:
nodeType = nodeType.lower()
if nodeType not in validNodeTypes:
logging.error("[%s]: Node type '%s' invalid." %
(fileName, nodeType))
sys.exit(1)
if userBackend.changeNodeTypeAndInstance(username, nodeType, instance):
userBackend.writeUserdata()
logging.info(
"[%s]: Changing node type and instance of user successful." %
fileName)
else:
logging.error(
"[%s]: Changing node type and instance of user failed." %
fileName)
sys.exit(1)