"""Service4User Extension"""
import typing as t
if t.TYPE_CHECKING:
from gssapi.raw.creds import Creds
from gssapi.raw.named_tuples import AcquireCredResult, AddCredResult
from gssapi.raw.names import Name
from gssapi.raw.oids import OID
[docs]
def acquire_cred_impersonate_name(
impersonator_cred: "Creds",
name: "Name",
lifetime: t.Optional[int] = None,
mechs: t.Optional[t.Iterable["OID"]] = None,
usage: str = 'initiate',
) -> "AcquireCredResult":
"""Acquire credentials by impersonating another name.
This method is one of the ways to use S4U2Self. It acquires credentials
by impersonating another name using a set of proxy credentials. The
impersonator credentials must have a usage of 'both' or 'initiate'.
Args:
impersonator_cred (~gssapi.raw.creds.Creds): the credentials with
permissions to impersonate the target name
name (~gssapi.raw.names.Name): the name to impersonate
lifetime (int): the lifetime for the credentials (or None for
indefinite) in seconds
mechs (~gssapi.raw.types.MechType): the desired mechanisms for which
the credentials should work (or None for the default set)
usage (str): the usage type for the credentials: may be
'initiate', 'accept', or 'both'
Returns:
AcquireCredResult: the resulting credentials, the actual mechanisms
with which they may be used, and their actual lifetime in seconds (or
None for indefinite or not support)
Raises:
~gssapi.exceptions.GSSError
"""
[docs]
def add_cred_impersonate_name(
input_cred: "Creds",
impersonator_cred: "Creds",
name: "Name",
mech: "OID",
usage: str = 'initiate',
init_lifetime: t.Optional[int] = None,
accept_lifetime: t.Optional[int] = None,
) -> "AddCredResult":
"""Add a credentials element to a credential by impersonating another name.
This method is one of the ways to use S4U2Self. It adds credentials
to the input credentials by impersonating another name using a set of
proxy credentials. The impersonator credentials must have a usage of
'both' or 'initiate'.
Args:
input_cred (~gssapi.raw.creds.Creds): the set of credentials to which
to add the new credentials
impersonator_cred (~gssapi.raw.creds.Creds): the credentials with
permissions to impersonate the target name
name (~gssapi.raw.names.Name): the name to impersonate
mech (~gssapi.raw.types.MechType): the desired mechanism. Note that
this is both
singular and required, unlike acquireCredImpersonateName
usage (str): the usage type for the credentials: may be
'initiate', 'accept', or 'both'
init_lifetime (int): the lifetime, in seconds, for the credentials to
remain valid when using them to initiate security contexts (or None
for indefinite)
accept_lifetime (int): the lifetime, in seconds, for the credentials to
remain valid when using them to accept security contexts (or None
for indefinite)
Returns:
AddCredResult: the actual mechanisms with which the credentials may be
used, the actual initiator TTL in seconds, and the actual acceptor TTL
in seconds (the TTLs may be None for indefinite or not supported)
Raises:
~gssapi.exceptions.GSSError
"""
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