<s> """<STR_LIT>""" <EOL> import uuid <EOL> from urllib . parse import urlencode <EOL> from pulsar import ( ImproperlyConfigured , HttpException , Http401 , <EOL> PermissionDenied , Http404 , HttpRedirect ) <EOL> from . mixins import jwt , SessionBackendMixin <EOL> from . registration import RegistrationMixin <EOL> from . . import ( AuthenticationError , AuthBackend , <EOL> User , Session , ModelMixin ) <EOL> from . . views import browser <EOL> NotAuthorised = ( Http401 , PermissionDenied ) <EOL> class BrowserBackend ( RegistrationMixin , <EOL> AuthBackend ) : <EOL> """<STR_LIT>""" <EOL> LoginRouter = browser . Login <EOL> LogoutRouter = browser . Logout <EOL> SignUpRouter = browser . SignUp <EOL> ForgotPasswordRouter = browser . ForgotPassword <EOL> def middleware ( self , app ) : <EOL> middleware = [ ] <EOL> cfg = app . config <EOL> if cfg [ '<STR_LIT>' ] : <EOL> middleware . append ( self . LoginRouter ( cfg [ '<STR_LIT>' ] ) ) <EOL> if cfg [ '<STR_LIT>' ] : <EOL> middleware . append ( self . LogoutRouter ( cfg [ '<STR_LIT>' ] ) ) <EOL> if cfg [ '<STR_LIT>' ] : <EOL> middleware . append ( self . SignUpRouter ( cfg [ '<STR_LIT>' ] ) ) <EOL> if cfg [ '<STR_LIT>' ] : <EOL> middleware . append ( <EOL> self . ForgotPasswordRouter ( cfg [ '<STR_LIT>' ] ) ) <EOL> return middleware <EOL> class ApiSessionBackend ( SessionBackendMixin , <EOL> ModelMixin , <EOL> BrowserBackend ) : <EOL> """<STR_LIT>""" <EOL> permissions_url = '<STR_LIT>' <EOL> """<STR_LIT>""" <EOL> signup_url = '<STR_LIT>' <EOL> """<STR_LIT>""" <EOL> reset_password_url = '<STR_LIT>' <EOL> """<STR_LIT>""" <EOL> auth_keys_url = '<STR_LIT>' <EOL> """<STR_LIT>""" <EOL> users_url = '<STR_LIT>' <EOL> def authenticate ( self , request , ** data ) : <EOL> if not jwt : <EOL> raise ImproperlyConfigured ( '<STR_LIT>' ) <EOL> api = request . app . api ( request ) <EOL> try : <EOL> response = api . post ( '<STR_LIT>' , data = data ) <EOL> token = response . json ( ) . get ( '<STR_LIT>' ) <EOL> payload = jwt . decode ( token , verify = False ) <EOL> user = User ( payload ) <EOL> user . encoded = token <EOL> return user <EOL> except ( AuthenticationError , HttpException ) : <EOL> raise <EOL> except Exception : <EOL> if data . get ( '<STR_LIT:username>' ) : <EOL> raise AuthenticationError ( '<STR_LIT>' ) <EOL> elif data . get ( '<STR_LIT:email>' ) : <EOL> raise AuthenticationError ( '<STR_LIT>' ) <EOL> else : <EOL> raise AuthenticationError ( '<STR_LIT>' ) <EOL> def signup ( self , request , ** data ) : <EOL> """<STR_LIT>""" <EOL> api = request . app . api ( request ) <EOL> try : <EOL> response = api . post ( self . signup_url , data = data ) <EOL> if response . status_code == <NUM_LIT> : <EOL> return response . json ( ) <EOL> except Exception : <EOL> if data . get ( '<STR_LIT:username>' ) : <EOL> raise AuthenticationError ( '<STR_LIT>' ) <EOL> elif data . get ( '<STR_LIT:email>' ) : <EOL> raise AuthenticationError ( '<STR_LIT>' ) <EOL> else : <EOL> raise AuthenticationError ( '<STR_LIT>' ) <EOL> def signup_confirm ( self , request , key ) : <EOL> api = request . app . api ( request ) <EOL> response = api . post ( '<STR_LIT>' % ( self . signup_url , key ) ) <EOL> return response . json ( ) <EOL> def signup_confirmation ( self , request , username ) : <EOL> api = request . app . api ( request ) <EOL> response = api . post ( '<STR_LIT>' % username ) <EOL> return response . json ( ) <EOL> def get_permissions ( self , request , resources , actions = None ) : <EOL> return self . _get_permissions ( request , resources , actions ) <EOL> def has_permission ( self , request , resource , action ) : <EOL> """<STR_LIT>""" <EOL> data = self . _get_permissions ( request , resource , action ) <EOL> resource = data . get ( resource ) <EOL> if resource : <EOL> return resource . get ( action , False ) <EOL> return False <EOL> def password_recovery ( self , request , ** params ) : <EOL> api = request . app . api ( request ) <EOL> response = api . post ( self . reset_password_url , data = params ) <EOL> return response . json ( ) <EOL> def set_password ( self , request , password , user = None , auth_key = None ) : <EOL> api = request . app . api ( request ) <EOL> if not auth_key : <EOL> raise AuthenticationError ( '<STR_LIT>' ) <EOL> url = '<STR_LIT>' % ( self . reset_password_url , auth_key ) <EOL> data = { '<STR_LIT:password>' : password , '<STR_LIT>' : password } <EOL> response = api . post ( url , data = data ) <EOL> return response . json ( ) <EOL> def confirm_auth_key ( self , request , key , ** kw ) : <EOL> api = request . app . api ( request ) <EOL> try : <EOL> api . head ( '<STR_LIT>' % ( self . auth_keys_url , key ) ) <EOL> except Http404 : <EOL> return False <EOL> return True <EOL> def create_session ( self , request , user = None ) : <EOL> """<STR_LIT>""" <EOL> if user : <EOL> user = User ( user ) <EOL> session = Session ( id = user . pop ( '<STR_LIT>' ) , <EOL> expiry = user . pop ( '<STR_LIT>' ) , <EOL> user = user ) <EOL> session . encoded = session . user . pop ( '<STR_LIT>' ) <EOL> else : <EOL> session = Session ( id = uuid . uuid4 ( ) . hex ) <EOL> return session <EOL> def get_session ( self , request , key ) : <EOL> """<STR_LIT>""" <EOL> app = request . app <EOL> session = app . cache_server . get_json ( self . _key ( key ) ) <EOL> if session : <EOL> session = Session ( session ) <EOL> if session . user : <EOL> user = User ( session . user ) <EOL> api = request . app . api ( request ) <EOL> try : <EOL> if not session . encoded : <EOL> raise Http401 <EOL> api . head ( '<STR_LIT>' , token = session . encoded ) <EOL> except NotAuthorised : <EOL> handle_401 ( request , user ) <EOL> session . user = user <EOL> return session <EOL> def session_save ( self , request , session ) : <EOL> data = session . all ( ) <EOL> if session . user : <EOL> data [ '<STR_LIT:user>' ] = session . user . all ( ) <EOL> store = request . app . cache_server <EOL> if store . name == '<STR_LIT>' : <EOL> request . logger . error ( '<STR_LIT>' , <EOL> self . __class__ . __name__ ) <EOL> store . set_json ( self . _key ( session . id ) , data ) <EOL> def _key ( self , id ) : <EOL> return '<STR_LIT>' % id <EOL> def _get_permissions ( self , request , resources , actions = None ) : <EOL> assert self . permissions_url , "<STR_LIT>" <EOL> if not isinstance ( resources , ( list , tuple ) ) : <EOL> resources = ( resources , ) <EOL> query = [ ( '<STR_LIT>' , resource ) for resource in resources ] <EOL> if actions : <EOL> if not isinstance ( actions , ( list , tuple ) ) : <EOL> actions = ( actions , ) <EOL> query . extend ( ( ( '<STR_LIT:action>' , action ) for action in actions ) ) <EOL> query = urlencode ( query ) <EOL> api = request . app . api ( request ) <EOL> try : <EOL> response = api . get ( '<STR_LIT>' % ( self . permissions_url , query ) ) <EOL> except NotAuthorised : <EOL> handle_401 ( request ) <EOL> return response . json ( ) <EOL> def handle_401 ( request , user = None ) : <EOL> """<STR_LIT>""" <EOL> user = user or request . session . user <EOL> if user . is_authenticated ( ) : <EOL> request . cache . auth_backend . logout ( request ) <EOL> raise HttpRedirect ( request . config [ '<STR_LIT>' ] ) <EOL> else : <EOL> raise Http404 </s>
