def get_failures(self, request, credentials=None, attempt_time=None) -> int: attempts = get_user_attempts(request, credentials, attempt_time) return attempts.aggregate( Max('failures_since_start'))['failures_since_start__max'] or 0
def test_get_user_attempts_updates_cache(self, get_cache): cache = MagicMock() cache.get.return_value = 1 cache.set.return_value = None get_cache.return_value = cache attempt = AccessAttempt.objects.create( username=self.username, ip_address=self.ip_address, user_agent=self.user_agent, failures_since_start=0, ) request = HttpRequest() request.META['REMOTE_ADDR'] = self.ip_address request.META['HTTP_USER_AGENT'] = self.user_agent credentials = {'username': self.username} # Check that the function does nothing if cool off has not passed cache.get.assert_not_called() cache.set.assert_not_called() self.assertEqual( list(get_user_attempts(request, credentials)), [attempt], ) cache.get.assert_not_called() cache.set.assert_not_called() time.sleep(settings.AXES_COOLOFF_TIME.seconds) self.assertEqual( list(get_user_attempts(request, credentials)), [], ) self.assertTrue(cache.get.call_count) self.assertTrue(cache.set.call_count)
def get_failures(self, request, credentials: dict = None) -> int: attempts_list = get_user_attempts(request, credentials) attempt_count = max((attempts.aggregate(Sum("failures_since_start")) ["failures_since_start__sum"] or 0) for attempts in attempts_list) return attempt_count
def user_login_failed(self, sender, credentials, request, **kwargs): # pylint: disable=unused-argument """ When user login fails, save AccessAttempt record in database and lock user out if necessary. :raises AxesSignalPermissionDenied: if user should is locked out """ if request is None: log.warning( 'AxesHandler.user_login_failed does not function without a request.' ) return username = get_client_username(request, credentials) ip_address = get_client_ip(request) user_agent = get_client_user_agent(request) path_info = request.META.get('PATH_INFO', '<unknown>')[:255] http_accept = request.META.get('HTTP_ACCEPT', '<unknown>')[:1025] client_str = get_client_str(username, ip_address, user_agent, path_info) if settings.AXES_NEVER_LOCKOUT_WHITELIST and ip_in_whitelist( ip_address): log.info('Login failed from whitelisted IP %s.', ip_address) return attempts = get_user_attempts(request, credentials) cache_key = get_cache_key(request, credentials) num_failures_cached = get_axes_cache().get(cache_key) if num_failures_cached: failures = num_failures_cached elif attempts: failures = attempts.aggregate( Max('failures_since_start'), )['failures_since_start__max'] else: failures = 0 # add a failed attempt for this user failures += 1 get_axes_cache().set( cache_key, failures, get_cache_timeout(), ) if attempts: # Update existing attempt information but do not touch the username, ip_address, or user_agent fields, # because attackers can request the site with multiple different usernames, addresses, or programs. for attempt in attempts: template = '{}\n---------\n{}' attempt.get_data = template.format( attempt.get_data, query2str(request.GET), ) attempt.post_data = template.format(attempt.post_data, query2str(request.POST)) attempt.http_accept = http_accept attempt.path_info = path_info attempt.failures_since_start = failures attempt.attempt_time = now() attempt.save() log.info( 'AXES: Repeated login failure by %s. Count = %d of %d', client_str, failures, settings.AXES_FAILURE_LIMIT, ) else: # Record failed attempt. Whether or not the IP address or user agent is # used in counting failures is handled elsewhere, so we just record # everything here. AccessAttempt.objects.create( username=username, ip_address=ip_address, user_agent=user_agent, get_data=query2str(request.GET), post_data=query2str(request.POST), http_accept=http_accept, path_info=path_info, failures_since_start=failures, ) log.info( 'AXES: New login failure by %s. Creating access record.', client_str, ) if is_already_locked(request, credentials): log.warning( 'AXES: Locked out %s after repeated login failures.', client_str, ) user_locked_out.send( 'axes', request=request, username=username, ip_address=ip_address, ) raise AxesSignalPermissionDenied( 'Locked out due to repeated login failures.')
def log_user_login_failed(sender, credentials, request, **kwargs): # pylint: disable=unused-argument """ Create an AccessAttempt record if the login wasn't successful """ if request is None: log.warning('Attempt to authenticate with a custom backend failed.') return ip_address = get_client_ip(request) username = get_client_username(request) user_agent = request.META.get('HTTP_USER_AGENT', '<unknown>')[:255] path_info = request.META.get('PATH_INFO', '<unknown>')[:255] http_accept = request.META.get('HTTP_ACCEPT', '<unknown>')[:1025] if settings.AXES_NEVER_LOCKOUT_WHITELIST and ip_in_whitelist(ip_address): return failures = 0 attempts = get_user_attempts(request) cache_hash_key = get_cache_key(request) cache_timeout = get_cache_timeout() failures_cached = get_axes_cache().get(cache_hash_key) if failures_cached is not None: failures = failures_cached else: for attempt in attempts: failures = max(failures, attempt.failures_since_start) # add a failed attempt for this user failures += 1 get_axes_cache().set(cache_hash_key, failures, cache_timeout) # has already attempted, update the info if attempts: for attempt in attempts: attempt.get_data = '%s\n---------\n%s' % ( attempt.get_data, query2str(request.GET), ) attempt.post_data = '%s\n---------\n%s' % (attempt.post_data, query2str(request.POST)) attempt.http_accept = http_accept attempt.path_info = path_info attempt.failures_since_start = failures attempt.attempt_time = timezone.now() attempt.save() log.info( 'AXES: Repeated login failure by %s. Count = %d of %d', get_client_str(username, ip_address, user_agent, path_info), failures, settings.AXES_FAILURE_LIMIT) else: # Record failed attempt. Whether or not the IP address or user agent is # used in counting failures is handled elsewhere, so we just record # everything here. AccessAttempt.objects.create( user_agent=user_agent, ip_address=ip_address, username=username, get_data=query2str(request.GET), post_data=query2str(request.POST), http_accept=http_accept, path_info=path_info, failures_since_start=failures, ) log.info('AXES: New login failure by %s. Creating access record.', get_client_str(username, ip_address, user_agent, path_info)) # no matter what, we want to lock them out if they're past the number of # attempts allowed, unless the user is set to notlockable if (failures >= settings.AXES_FAILURE_LIMIT and settings.AXES_LOCK_OUT_AT_FAILURE and is_user_lockable(request)): log.warning( 'AXES: locked out %s after repeated login attempts.', get_client_str(username, ip_address, user_agent, path_info)) # send signal when someone is locked out. user_locked_out.send('axes', request=request, username=username, ip_address=ip_address)
def user_login_failed(self, sender, credentials: dict, request=None, **kwargs): # pylint: disable=too-many-locals """ When user login fails, save AccessAttempt record in database and lock user out if necessary. :raises AxesSignalPermissionDenied: if user should be locked out. """ if request is None: log.error( "AXES: AxesDatabaseHandler.user_login_failed does not function without a request." ) return # 1. database query: Clean up expired user attempts from the database before logging new attempts clean_expired_user_attempts(request.axes_attempt_time) username = get_client_username(request, credentials) client_str = get_client_str( username, request.axes_ip_address, request.axes_user_agent, request.axes_path_info, ) # This replaces null byte chars that crash saving failures, meaning an attacker doesn't get locked out. get_data = get_query_str(request.GET).replace("\0", "0x00") post_data = get_query_str(request.POST).replace("\0", "0x00") if self.is_whitelisted(request, credentials): log.info("AXES: Login failed from whitelisted client %s.", client_str) return # 2. database query: Calculate the current maximum failure number from the existing attempts failures_since_start = 1 + self.get_failures(request, credentials) # 3. database query: Insert or update access records with the new failure data if failures_since_start > 1: # Update failed attempt information but do not touch the username, IP address, or user agent fields, # because attackers can request the site with multiple different configurations # in order to bypass the defense mechanisms that are used by the site. log.warning( "AXES: Repeated login failure by %s. Count = %d of %d. Updating existing record in the database.", client_str, failures_since_start, get_failure_limit(request, credentials), ) separator = "\n---------\n" attempts = get_user_attempts(request, credentials) attempts.update( get_data=Concat("get_data", Value(separator + get_data)), post_data=Concat("post_data", Value(separator + post_data)), http_accept=request.axes_http_accept, path_info=request.axes_path_info, failures_since_start=failures_since_start, attempt_time=request.axes_attempt_time, username=username, ) else: # Record failed attempt with all the relevant information. # Filtering based on username, IP address and user agent handled elsewhere, # and this handler just records the available information for further use. log.warning( "AXES: New login failure by %s. Creating new record in the database.", client_str, ) AccessAttempt.objects.create( username=username, ip_address=request.axes_ip_address, user_agent=request.axes_user_agent, get_data=get_data, post_data=post_data, http_accept=request.axes_http_accept, path_info=request.axes_path_info, failures_since_start=failures_since_start, attempt_time=request.axes_attempt_time, ) if (settings.AXES_LOCK_OUT_AT_FAILURE and failures_since_start >= get_failure_limit( request, credentials)): log.warning("AXES: Locking out %s after repeated login failures.", client_str) request.axes_locked_out = True user_locked_out.send( "axes", request=request, username=username, ip_address=request.axes_ip_address, )
def get_failures(self, request, credentials: dict = None) -> int: attempts = get_user_attempts(request, credentials) return (attempts.aggregate( Max("failures_since_start"))["failures_since_start__max"] or 0)
def user_login_failed(self, sender, credentials, request=None, **kwargs): # pylint: disable=too-many-locals """ When user login fails, save AccessAttempt record in database and lock user out if necessary. :raises AxesSignalPermissionDenied: if user should be locked out. """ attempt_time = now() # 1. database query: Clean up expired user attempts from the database before logging new attempts clean_expired_user_attempts(attempt_time) if request is None: log.error( 'AXES: AxesDatabaseHandler.user_login_failed does not function without a request.' ) return username = get_client_username(request, credentials) ip_address = get_client_ip_address(request) user_agent = get_client_user_agent(request) path_info = get_client_path_info(request) http_accept = get_client_http_accept(request) client_str = get_client_str(username, ip_address, user_agent, path_info) get_data = get_query_str(request.GET) post_data = get_query_str(request.POST) if self.is_whitelisted(request, credentials): log.info('AXES: Login failed from whitelisted client %s.', client_str) return # 2. database query: Calculate the current maximum failure number from the existing attempts failures_since_start = 1 + self.get_failures(request, credentials, attempt_time) # 3. database query: Insert or update access records with the new failure data if failures_since_start > 1: # Update failed attempt information but do not touch the username, IP address, or user agent fields, # because attackers can request the site with multiple different configurations # in order to bypass the defense mechanisms that are used by the site. log.warning( 'AXES: Repeated login failure by %s. Count = %d of %d. Updating existing record in the database.', client_str, failures_since_start, settings.AXES_FAILURE_LIMIT, ) separator = '\n---------\n' attempts = get_user_attempts(request, credentials, attempt_time) attempts.update( get_data=Concat('get_data', Value(separator + get_data)), post_data=Concat('post_data', Value(separator + post_data)), http_accept=http_accept, path_info=path_info, failures_since_start=failures_since_start, attempt_time=attempt_time, ) else: # Record failed attempt with all the relevant information. # Filtering based on username, IP address and user agent handled elsewhere, # and this handler just records the available information for further use. log.warning( 'AXES: New login failure by %s. Creating new record in the database.', client_str, ) AccessAttempt.objects.create( username=username, ip_address=ip_address, user_agent=user_agent, get_data=get_data, post_data=post_data, http_accept=http_accept, path_info=path_info, failures_since_start=failures_since_start, attempt_time=attempt_time, ) if failures_since_start >= settings.AXES_FAILURE_LIMIT: log.warning('AXES: Locking out %s after repeated login failures.', client_str) user_locked_out.send( 'axes', request=request, username=username, ip_address=ip_address, ) raise AxesSignalPermissionDenied( 'Locked out due to repeated login failures.')
def get_failures(self, request: AxesHttpRequest, credentials: dict = None) -> int: attempts = get_user_attempts(request, credentials) return attempts.aggregate( Max('failures_since_start'))['failures_since_start__max'] or 0
def user_login_failed(self, sender, credentials, request, **kwargs): # pylint: disable=unused-argument """ When user login fails, save AccessAttempt record in database and lock user out if necessary. :raises AxesSignalPermissionDenied: if user should is locked out """ if request is None: log.warning('AxesHandler.user_login_failed does not function without a request.') return ip_address = get_client_ip(request) username = get_client_username(request, credentials) user_agent = request.META.get('HTTP_USER_AGENT', '<unknown>')[:255] path_info = request.META.get('PATH_INFO', '<unknown>')[:255] http_accept = request.META.get('HTTP_ACCEPT', '<unknown>')[:1025] if settings.AXES_NEVER_LOCKOUT_WHITELIST and ip_in_whitelist(ip_address): log.info('Login failed from whitelisted IP %s.', ip_address) return failures = 0 attempts = get_user_attempts(request, credentials) cache_hash_key = get_cache_key(request, credentials) cache_timeout = get_cache_timeout() failures_cached = get_axes_cache().get(cache_hash_key) if failures_cached is not None: failures = failures_cached else: for attempt in attempts: failures = max(failures, attempt.failures_since_start) # add a failed attempt for this user failures += 1 get_axes_cache().set(cache_hash_key, failures, cache_timeout) # has already attempted, update the info if attempts: for attempt in attempts: attempt.get_data = '%s\n---------\n%s' % ( attempt.get_data, query2str(request.GET), ) attempt.post_data = '%s\n---------\n%s' % ( attempt.post_data, query2str(request.POST) ) attempt.http_accept = http_accept attempt.path_info = path_info attempt.failures_since_start = failures attempt.attempt_time = now() attempt.save() log.info( 'AXES: Repeated login failure by %s. Count = %d of %d', get_client_str(username, ip_address, user_agent, path_info), failures, settings.AXES_FAILURE_LIMIT, ) else: # Record failed attempt. Whether or not the IP address or user agent is # used in counting failures is handled elsewhere, so we just record # everything here. AccessAttempt.objects.create( user_agent=user_agent, ip_address=ip_address, username=username, get_data=query2str(request.GET), post_data=query2str(request.POST), http_accept=http_accept, path_info=path_info, failures_since_start=failures, ) log.info( 'AXES: New login failure by %s. Creating access record.', get_client_str(username, ip_address, user_agent, path_info), ) # no matter what, we want to lock them out if they're past the number of # attempts allowed, unless the user is set to notlockable if ( failures >= settings.AXES_FAILURE_LIMIT and settings.AXES_LOCK_OUT_AT_FAILURE and is_user_lockable(request, credentials) ): log.warning( 'AXES: Locked out %s after repeated login failures.', get_client_str(username, ip_address, user_agent, path_info), ) # send signal when someone is locked out. user_locked_out.send( 'axes', request=request, username=username, ip_address=ip_address, ) raise AxesSignalPermissionDenied('Locked out due to repeated login failures.')
def _get_user_attempts(self, request, credentials: dict = None): if not hasattr(request, "axes_user_attempts"): request.axes_user_attempts = get_user_attempts(request, credentials) return request.axes_user_attempts
def user_login_failed( self, sender, credentials: dict, request: AxesHttpRequest = None, **kwargs ): # pylint: disable=too-many-locals """ When user login fails, save AccessAttempt record in database and lock user out if necessary. :raises AxesSignalPermissionDenied: if user should be locked out. """ if request is None: log.error('AXES: AxesDatabaseHandler.user_login_failed does not function without a request.') return if not hasattr(request, 'axes_attempt_time'): log.error('AXES: AxesDatabaseHandler.user_login_failed needs a valid AxesHttpRequest object.') return # 1. database query: Clean up expired user attempts from the database before logging new attempts clean_expired_user_attempts(request.axes_attempt_time) username = get_client_username(request, credentials) client_str = get_client_str(username, request.axes_ip_address, request.axes_user_agent, request.axes_path_info) get_data = get_query_str(request.GET) post_data = get_query_str(request.POST) if self.is_whitelisted(request, credentials): log.info('AXES: Login failed from whitelisted client %s.', client_str) return # 2. database query: Calculate the current maximum failure number from the existing attempts failures_since_start = 1 + self.get_failures(request, credentials) # 3. database query: Insert or update access records with the new failure data if failures_since_start > 1: # Update failed attempt information but do not touch the username, IP address, or user agent fields, # because attackers can request the site with multiple different configurations # in order to bypass the defense mechanisms that are used by the site. log.warning( 'AXES: Repeated login failure by %s. Count = %d of %d. Updating existing record in the database.', client_str, failures_since_start, settings.AXES_FAILURE_LIMIT, ) separator = '\n---------\n' attempts = get_user_attempts(request, credentials) attempts.update( get_data=Concat('get_data', Value(separator + get_data)), post_data=Concat('post_data', Value(separator + post_data)), http_accept=request.axes_http_accept, path_info=request.axes_path_info, failures_since_start=failures_since_start, attempt_time=request.axes_attempt_time, ) else: # Record failed attempt with all the relevant information. # Filtering based on username, IP address and user agent handled elsewhere, # and this handler just records the available information for further use. log.warning( 'AXES: New login failure by %s. Creating new record in the database.', client_str, ) AccessAttempt.objects.create( username=username, ip_address=request.axes_ip_address, user_agent=request.axes_user_agent, get_data=get_data, post_data=post_data, http_accept=request.axes_http_accept, path_info=request.axes_path_info, failures_since_start=failures_since_start, attempt_time=request.axes_attempt_time, ) if failures_since_start >= settings.AXES_FAILURE_LIMIT: log.warning('AXES: Locking out %s after repeated login failures.', client_str) user_locked_out.send( 'axes', request=request, username=username, ip_address=request.axes_ip_address, ) raise AxesSignalPermissionDenied('Locked out due to repeated login failures.')
def get_failures(self, request: AxesHttpRequest, credentials: dict = None) -> int: attempts = get_user_attempts(request, credentials) return attempts.aggregate(Max('failures_since_start'))['failures_since_start__max'] or 0