def get(self, id):
"""Retrieve the CAPTCHA with the given ID. If it's expired already,
this will return None. A typical web application will need to
new() a CAPTCHA when generating an html page, then get() it later
when its images or sounds must be rendered.
"""
redis_captcha_dict_obj = RedisCaptchaDict.get_instance('0')
self.storedInstances = redis_captcha_dict_obj.captcha_dict
return self.storedInstances.get(id)
def new(self, cls, *args, **kwargs):
"""Create a new instance of our assigned BaseCaptcha subclass, passing
it any extra arguments we're given. This stores the result for
later testing.
"""
self.clean()
inst = cls(*args, **kwargs)
redis_captcha_dict_obj = RedisCaptchaDict.get_instance('0')
self.storedInstances = redis_captcha_dict_obj.captcha_dict
self.storedInstances[inst.id] = inst
redis_captcha_dict_obj.put()
return inst
def clean(self):
"""Removed expired tests"""
expiredIds = []
now = time.time()
redis_captcha_dict_obj = RedisCaptchaDict.get_instance('0')
self.storedInstances = redis_captcha_dict_obj.captcha_dict
for inst in self.storedInstances.itervalues():
if inst.creationTime + self.lifetime < now:
expiredIds.append(inst.id)
for id in expiredIds:
del self.storedInstances[id]
redis_captcha_dict_obj.put()
def test(self, id, solutions):
"""Test the given list of solutions against the BaseCaptcha instance
created earlier with the given id. Returns True if the test passed,
False on failure. In either case, the test is invalidated. Returns
False in the case of an invalid id.
"""
self.clean()
redis_captcha_dict_obj = RedisCaptchaDict.get_instance('0')
self.storedInstances = redis_captcha_dict_obj.captcha_dict
inst = self.storedInstances.get(id)
if not inst:
return False
result = inst.testSolutions(solutions)
return result