def authenticate(self, request):
"""
Returns two-tuple of (user, token) if authentication succeeds,
or None otherwise.
"""
auth = get_authorization_header(request).split()
if len(auth) == 1:
msg = 'Invalid bearer header. No credentials provided.'
raise exceptions.AuthenticationFailed(msg)
elif len(auth) > 2:
msg = 'Invalid bearer header. Token string should not contain spaces.'
raise exceptions.AuthenticationFailed(msg)
if auth and auth[0].lower() == b'bearer':
access_token = auth[1]
elif 'access_token' in request.POST:
access_token = request.POST['access_token']
elif 'access_token' in request.GET and self.allow_query_params_token:
access_token = request.GET['access_token']
else:
return None
return self.authenticate_credentials(request, access_token)
def authenticate(self, request):
"""
Returns a `User` if a correct username and password have been supplied
using HTTP Basic authentication. Otherwise returns `None`.
"""
auth = get_authorization_header(request).split()
if not auth or auth[0].lower() != b'basic':
return None
if len(auth) == 1:
msg = 'Invalid basic header. No credentials provided.'
raise exceptions.AuthenticationFailed(msg)
elif len(auth) > 2:
msg = 'Invalid basic header. Credentials string should not contain spaces.'
raise exceptions.AuthenticationFailed(msg)
try:
auth_parts = base64.b64decode(
auth[1]).decode(HTTP_HEADER_ENCODING).partition(':')
except (TypeError, UnicodeDecodeError):
msg = 'Invalid basic header. Credentials not correctly base64 encoded'
raise exceptions.AuthenticationFailed(msg)
userid, password = auth_parts[0], auth_parts[2]
return self.authenticate_credentials(userid, password)
def authenticate_credentials(self, key):
try:
token = self.model.objects.get(key=key)
except self.model.DoesNotExist:
raise exceptions.AuthenticationFailed('Invalid token')
if not token.user.is_active:
raise exceptions.AuthenticationFailed('User inactive or deleted')
return (token.user, token)
def authenticate(self, request):
auth = get_authorization_header(request).split()
if not auth or auth[0].lower() != b'token':
return None
if len(auth) == 1:
msg = 'Invalid token header. No credentials provided.'
raise exceptions.AuthenticationFailed(msg)
elif len(auth) > 2:
msg = 'Invalid token header. Token string should not contain spaces.'
raise exceptions.AuthenticationFailed(msg)
return self.authenticate_credentials(auth[1])
def authenticate_credentials(self, userid, password):
"""
Authenticate the userid and password against username and password.
"""
user = authenticate(username=userid, password=password)
if user is None or not user.is_active:
raise exceptions.AuthenticationFailed('Invalid username/password')
return (user, None)
def enforce_csrf(self, request):
"""
Enforce CSRF validation for session based authentication.
"""
reason = CSRFCheck().process_view(request, None, (), {})
if reason:
# CSRF failed, bail with explicit error message
raise exceptions.AuthenticationFailed('CSRF Failed: %s' % reason)
def authenticate_credentials(self, request, access_token):
"""
Authenticate the request, given the access token.
"""
try:
token = oauth2_provider.oauth2.models.AccessToken.objects.select_related(
'user')
# provider_now switches to timezone aware datetime when
# the oauth2_provider version supports to it.
token = token.get(token=access_token, expires__gt=provider_now())
except oauth2_provider.oauth2.models.AccessToken.DoesNotExist:
raise exceptions.AuthenticationFailed('Invalid token')
user = token.user
if not user.is_active:
msg = 'User inactive or deleted: %s' % user.get_username()
raise exceptions.AuthenticationFailed(msg)
return (user, token)
def authenticate(self, request):
"""
Returns two-tuple of (user, token) if authentication succeeds,
or None otherwise.
"""
try:
oauth_request = oauth_provider.utils.get_oauth_request(request)
except oauth.Error as err:
raise exceptions.AuthenticationFailed(err.message)
if not oauth_request:
return None
oauth_params = oauth_provider.consts.OAUTH_PARAMETERS_NAMES
found = any(param for param in oauth_params if param in oauth_request)
missing = list(param for param in oauth_params
if param not in oauth_request)
if not found:
# OAuth authentication was not attempted.
return None
if missing:
# OAuth was attempted but missing parameters.
msg = 'Missing parameters: %s' % (', '.join(missing))
raise exceptions.AuthenticationFailed(msg)
if not self.check_nonce(request, oauth_request):
msg = 'Nonce check failed'
raise exceptions.AuthenticationFailed(msg)
try:
consumer_key = oauth_request.get_parameter('oauth_consumer_key')
consumer = oauth_provider_store.get_consumer(
request, oauth_request, consumer_key)
except oauth_provider.store.InvalidConsumerError:
msg = 'Invalid consumer token: %s' % oauth_request.get_parameter(
'oauth_consumer_key')
raise exceptions.AuthenticationFailed(msg)
if consumer.status != oauth_provider.consts.ACCEPTED:
msg = 'Invalid consumer key status: %s' % consumer.get_status_display(
)
raise exceptions.AuthenticationFailed(msg)
try:
token_param = oauth_request.get_parameter('oauth_token')
token = oauth_provider_store.get_access_token(
request, oauth_request, consumer, token_param)
except oauth_provider.store.InvalidTokenError:
msg = 'Invalid access token: %s' % oauth_request.get_parameter(
'oauth_token')
raise exceptions.AuthenticationFailed(msg)
try:
self.validate_token(request, consumer, token)
except oauth.Error as err:
raise exceptions.AuthenticationFailed(err.message)
user = token.user
if not user.is_active:
msg = 'User inactive or deleted: %s' % user.username
raise exceptions.AuthenticationFailed(msg)
return (token.user, token)
