def generate_challenge(self):
# local import to avoid circular import
from seahub.two_factor.oath import totp
from seahub.two_factor.utils import totp_digits
"""
Sends the current TOTP token to `self.number` using `self.method`.
"""
no_digits = totp_digits()
token = str(totp(self.bin_key, digits=no_digits)).zfill(no_digits)
if self.method == 'call':
make_call(device=self, token=token)
else:
send_sms(device=self, token=token)
def generate_challenge(self):
# local import to avoid circular import
from seahub.two_factor.oath import totp
from seahub.two_factor.utils import totp_digits
"""
Sends the current TOTP token to `self.number` using `self.method`.
"""
no_digits = totp_digits()
token = str(totp(self.bin_key, digits=no_digits)).zfill(no_digits)
if self.method == 'call':
make_call(device=self, token=token)
else:
send_sms(device=self, token=token)
def verify_token(self, token):
# local import to avoid circular import
from seahub.two_factor.oath import totp
from seahub.two_factor.utils import totp_digits
try:
token = int(token)
except ValueError:
return False
for drift in range(-5, 1):
if totp(self.bin_key, drift=drift, digits=totp_digits()) == token:
return True
return False
def verify_token(self, token):
# local import to avoid circular import
from seahub.two_factor.oath import totp
from seahub.two_factor.utils import totp_digits
try:
token = int(token)
except ValueError:
return False
for drift in range(-5, 1):
if totp(self.bin_key, drift=drift, digits=totp_digits()) == token:
return True
return False
def clean_token(self):
token = self.cleaned_data.get('token')
validated = False
t0s = [self.t0]
key = self.bin_key
if 'valid_t0' in self.metadata:
t0s.append(int(time()) - self.metadata['valid_t0'])
for t0 in t0s:
for offset in range(-self.tolerance, self.tolerance):
if totp(key, self.step, t0, self.digits, self.drift + offset) == token:
self.drift = offset
self.metadata['valid_t0'] = int(time()) - t0
validated = True
if not validated:
raise forms.ValidationError(self.error_messages['invalid_token'])
return token
def clean_token(self):
token = self.cleaned_data.get('token')
validated = False
t0s = [self.t0]
key = self.bin_key
if 'valid_t0' in self.metadata:
t0s.append(int(time()) - self.metadata['valid_t0'])
for t0 in t0s:
for offset in range(-self.tolerance, self.tolerance):
if totp(key, self.step, t0, self.digits,
self.drift + offset) == token:
self.drift = offset
self.metadata['valid_t0'] = int(time()) - t0
validated = True
if not validated:
raise forms.ValidationError(self.error_messages['invalid_token'])
return token
