1VhPdZddlZGddejZGddZy)z9Experimental framework for authentication in TensorBoard.NceZdZdZdZy) AuthProviderz:Authentication provider for a specific kind of credential.cy)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)selfenvirons @/home/dcms/DCMS/lib/python3.12/site-packages/tensorboard/auth.py authenticatezAuthProvider.authenticates" N)__name__ __module__ __qualname____doc__r rr r rrs D r r) metaclassc,eZdZdZdZedZdZy) 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. c.||_||_i|_y)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 providersrs r __init__zAuthContext.__init__3s  # r c|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)clss r emptyzAuthContext.empty?s2r{r c|j|}t}|jj||}||ur|S|j |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`. )robjectrgetr r)r provider_keyprovidersentinelvalues r rzAuthContext.getKsa(??<08  h7  L%%dmm4$) L! r N)r r rrr classmethodrrrr r rr+s%   r r)rabcABCMetarrrr r r&s(@  S[[ .;;r