def submit_answer(cid, answer, token):
"""Submits an answer.
Args:
cid: The ID of the challenge.
answer: The answer to check.
token: Provided proof of work token.
Returns:
Number of points awarded for answer.
"""
correct = 'WRONG'
nbits = app.config.get('PROOF_OF_WORK_BITS', 0)
if nbits and not utils.validate_proof_of_work(answer, token, nbits):
raise errors.InvalidAnswerError('Bad proof of work token!')
team = models.Team.current()
if not team:
raise errors.AccessDeniedError('No team!')
try:
challenge = models.Challenge.query.get(cid)
if not challenge.unlocked_for_team(team):
raise errors.AccessDeniedError('Challenge is locked!')
validator = validators.GetValidatorForChallenge(challenge)
if validator.validate_answer(answer, team):
points = save_team_answer(challenge, team, answer)
if utils.GameTime.over():
correct = 'CORRECT (Game Over)'
else:
correct = 'CORRECT'
return points
else:
raise errors.InvalidAnswerError('Really? Haha no....')
except (errors.IntegrityError, errors.FlushError) as exc:
app.logger.exception('Error saving flag: %s', exc)
models.db.session.rollback()
raise
finally:
user = models.User.current()
app.challenge_log.info(
'Player %s <%s>(%d)/Team %s(%d) submitted '
'"%s" for Challenge %s<%d>: %s', user.nick, user.email, user.uid,
team.name, team.tid, answer, challenge.name, challenge.cid,
correct)
def submit_answer(cid, answer, token):
"""Submits an answer.
Args:
cid: The ID of the challenge.
answer: The answer to check.
token: Provided proof of work token.
Returns:
Number of points awarded for answer.
"""
correct = 'WRONG'
nbits = app.config.get('PROOF_OF_WORK_BITS', 0)
if nbits and not utils.validate_proof_of_work(answer, token, nbits):
raise errors.InvalidAnswerError('Bad proof of work token!')
team = models.Team.current()
if not team:
raise errors.AccessDeniedError('No team!')
try:
challenge = models.Challenge.query.get(cid)
if not challenge.unlocked_for_team(team):
raise errors.AccessDeniedError('Challenge is locked!')
validator = validators.GetValidatorForChallenge(challenge)
if validator.validate_answer(answer, team):
points = save_team_answer(challenge, team, answer)
if utils.GameTime.over():
correct = 'CORRECT (Game Over)'
else:
correct = 'CORRECT'
return points
else:
raise errors.InvalidAnswerError('Really? Haha no....')
except errors.IntegrityError:
models.db.session.rollback()
raise
finally:
user = models.User.current()
app.challenge_log.info(
'Player %s <%s>(%d)/Team %s(%d) submitted '
'"%s" for Challenge %s<%d>: %s',
user.nick, user.email, user.uid, team.name, team.tid, answer,
challenge.name, challenge.cid, correct)
def testValidateProofOfWork_FailsInvalidBase64(self):
val = "foo"
key = "!!"
nbits = 12
self.assertFalse(utils.validate_proof_of_work(val, key, nbits))
def testValidateProofOfWork_FailsMoreBits(self):
val = "foo"
key = "N77manQK9CvjvPRXB8U7ftJxys1d36xVfcBkGvM-jq"
nbits = 16
self.assertFalse(utils.validate_proof_of_work(val, key, nbits))
def testValidateProofOfWork_FailsWrongVal(self):
val = "bar"
key = "N77manQK9CvjvPRXB8U7ftJxys1d36xVfcBkGvM-jqM"
nbits = 12
self.assertFalse(utils.validate_proof_of_work(val, key, nbits))
def testValidateProofOfWork_SucceedsUnicode(self):
val = u"foo"
key = u"N77manQK9CvjvPRXB8U7ftJxys1d36xVfcBkGvM-jqM"
nbits = 12
self.assertTrue(utils.validate_proof_of_work(val, key, nbits))
def testValidateProofOfWork_FailsInvalidBase64(self):
val = "foo"
key = "!!"
nbits = 12
self.assertFalse(utils.validate_proof_of_work(val, key, nbits))
def testValidateProofOfWork_FailsMoreBits(self):
val = "foo"
key = "N77manQK9CvjvPRXB8U7ftJxys1d36xVfcBkGvM-jq"
nbits = 16
self.assertFalse(utils.validate_proof_of_work(val, key, nbits))
def testValidateProofOfWork_FailsWrongVal(self):
val = "bar"
key = "N77manQK9CvjvPRXB8U7ftJxys1d36xVfcBkGvM-jqM"
nbits = 12
self.assertFalse(utils.validate_proof_of_work(val, key, nbits))
def testValidateProofOfWork_SucceedsUnicode(self):
val = u"foo"
key = u"N77manQK9CvjvPRXB8U7ftJxys1d36xVfcBkGvM-jqM"
nbits = 12
self.assertTrue(utils.validate_proof_of_work(val, key, nbits))
