a d=ic@s4dZddlZGdddejdZGdddeZdS)z9Experimental framework for authentication in TensorBoard.Nc@seZdZdZddZdS) AuthProviderz:Authentication provider for a specific kind of credential.cCsdS)aeProduce an opaque auth token from a WSGI request environment. Args: environ: A WSGI environment `dict`; see PEP 3333. Returns: A Python object representing an auth token. The representation and semantics depend on the particular `AuthProvider` implementation. Raises: Exception: Any error, usually `tensorboard.errors.PublicError` subclasses (like `PermissionDenied`) but also possibly a custom error type that should propagate to a WSGI middleware for effecting a redirect-driven auth flow. N)selfenvironrra/home/droni/.local/share/virtualenvs/DPS-5Je3_V2c/lib/python3.9/site-packages/tensorboard/auth.py authenticateszAuthProvider.authenticateN)__name__ __module__ __qualname____doc__rrrrrrsr) metaclassc@s,eZdZdZddZeddZddZdS) AuthContextaAuthentication context within the scope of a single request. Auth providers are keyed within an `AuthContext` by arbitrary unique keys. It may often make sense for the key used for an auth provider to simply be that provider's type object. cCs||_||_i|_dS)zCreate an auth context. Args: providers: A mapping from provider keys (opaque values) to `AuthProvider` implementations. environ: A WSGI environment (see PEP 3333). N)_environ _providers_cache)r providersrrrr__init__3szAuthContext.__init__cCs |iiS)zCreate an auth context with no registered providers. Returns: A new `AuthContext` value for which any call to `get` will fail with a `KeyError`. r)clsrrrempty?s zAuthContext.emptycCsD|j|}t}|j||}||ur*|S||j}||j|<|S)aGet an auth token from the auth provider with the given key. If successful, the result will be cached on this auth context. If unsuccessful, nothing will be cached, so a future call will invoke the underlying `AuthProvider.authenticate` method again. This method is not thread-safe. If multiple threads share an auth context for a single request, then they must synchronize externally when calling this method. Returns: The result of `provider.authenticate(...)` for the auth provider specified by `provider_key`. Raises: KeyError: If the given `provider_key` does not correspond to any registered `AuthProvider`. Exception: As raised by the underlying `AuthProvider`. )robjectrgetrr)rZ provider_keyprovidersentinelvaluerrrrKs   zAuthContext.getN)rr r r r classmethodrrrrrrr +s   r )r abcABCMetarrr rrrrs