A tool to validate a token using a sequence of steps
Source code in apps/votes_results/classes/vote/token_validator.py
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74 | class TokenValidator:
"""A tool to validate a token using a sequence of steps
"""
def __init__(self) -> None:
self.token = NoToken()
def load_token_from_user(self, user, poll: PollModel):
try:
self.token = PollTokens.objects.get(
token_user=user, poll_fk = poll)
except ObjectDoesNotExist:
self.token = NoToken()
def is_token_load(self):
return not isinstance(self.token, NoToken)
def is_token_valid(self):
return not isinstance(self.token, NoToken)
def is_token_available_for_votemethod(self, votemethod: PollModel.PollType) -> bool:
if (votemethod == PollModel.PollType.SINGLE_OPTION) or \
(votemethod == PollModel.PollType.SCHULZE):
return not self.token.single_option_use
if votemethod == PollModel.PollType.MAJORITY_JUDJMENT:
return not self.token.majority_use
return False
def is_token_voted_so_but_not_mj(self) -> bool:
if not self.is_token_load():
return False
return self.token.single_option_use and not self.token.majority_use
def mark_votemethod_as_used(self, votemethod: PollModel.PollType):
if not self.is_token_load():
raise Exception("Cannot mark a token as used if it's not load")
if (votemethod == PollModel.PollType.SINGLE_OPTION) or \
(votemethod == PollModel.PollType.SCHULZE):
if self.token.single_option_use:
raise Exception("Cannot vote two times with same method (single option)")
self.token.single_option_use = True
self.token.save()
return
if votemethod == PollModel.PollType.MAJORITY_JUDJMENT:
if self.token.majority_use:
raise Exception("Cannot vote two times with same method (majority judgment)")
self.token.majority_use = True
self.token.save()
return
raise Exception("Unvalid votemethod")
|