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https://github.com/clinton-hall/nzbToMedia.git
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58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
import ctypes.wintypes
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from jaraco.windows.error import handle_nonzero_success
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from .api import security
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def GetTokenInformation(token, information_class):
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"""
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Given a token, get the token information for it.
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"""
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data_size = ctypes.wintypes.DWORD()
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ctypes.windll.advapi32.GetTokenInformation(token, information_class.num,
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0, 0, ctypes.byref(data_size))
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data = ctypes.create_string_buffer(data_size.value)
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handle_nonzero_success(ctypes.windll.advapi32.GetTokenInformation(token,
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information_class.num,
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ctypes.byref(data), ctypes.sizeof(data),
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ctypes.byref(data_size)))
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return ctypes.cast(data, ctypes.POINTER(security.TOKEN_USER)).contents
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def OpenProcessToken(proc_handle, access):
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result = ctypes.wintypes.HANDLE()
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proc_handle = ctypes.wintypes.HANDLE(proc_handle)
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handle_nonzero_success(ctypes.windll.advapi32.OpenProcessToken(
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proc_handle, access, ctypes.byref(result)))
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return result
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def get_current_user():
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"""
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Return a TOKEN_USER for the owner of this process.
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"""
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process = OpenProcessToken(
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ctypes.windll.kernel32.GetCurrentProcess(),
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security.TokenAccess.TOKEN_QUERY,
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)
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return GetTokenInformation(process, security.TOKEN_USER)
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def get_security_attributes_for_user(user=None):
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"""
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Return a SECURITY_ATTRIBUTES structure with the SID set to the
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specified user (uses current user if none is specified).
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"""
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if user is None:
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user = get_current_user()
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assert isinstance(user, security.TOKEN_USER), "user must be TOKEN_USER instance"
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SD = security.SECURITY_DESCRIPTOR()
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SA = security.SECURITY_ATTRIBUTES()
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# by attaching the actual security descriptor, it will be garbage-
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# collected with the security attributes
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SA.descriptor = SD
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SA.bInheritHandle = 1
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ctypes.windll.advapi32.InitializeSecurityDescriptor(ctypes.byref(SD),
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security.SECURITY_DESCRIPTOR.REVISION)
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ctypes.windll.advapi32.SetSecurityDescriptorOwner(ctypes.byref(SD),
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user.SID, 0)
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return SA
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