mirror of
https://github.com/fireeye/pywintrace
synced 2026-06-08 14:12:45 +00:00
Anthony Berglund
112 lines
3.1 KiB
Python
112 lines
3.1 KiB
Python
########################################################################
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# Copyright 2017 FireEye Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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########################################################################
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import ctypes as ct
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def cmp(a, b):
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return (a > b) - (a < b)
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BYTE = ct.c_byte
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WORD = ct.c_ushort
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DWORD = ct.c_ulong
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_ole32 = ct.oledll.ole32
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_StringFromCLSID = _ole32.StringFromCLSID
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_CoTaskMemFree = ct.windll.ole32.CoTaskMemFree
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_ProgIDFromCLSID = _ole32.ProgIDFromCLSID
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_CLSIDFromString = _ole32.CLSIDFromString
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_CLSIDFromProgID = _ole32.CLSIDFromProgID
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_CoCreateGuid = _ole32.CoCreateGuid
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class GUID(ct.Structure):
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_fields_ = [("Data1", DWORD),
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("Data2", WORD),
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("Data3", WORD),
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("Data4", BYTE * 8)]
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def __init__(self, name=None):
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if name is not None:
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_CLSIDFromString(str(name), ct.byref(self))
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def __repr__(self):
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return 'GUID("%s")' % str(self)
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def __str__(self):
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p = ct.c_wchar_p()
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_StringFromCLSID(ct.byref(self), ct.byref(p))
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result = p.value
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_CoTaskMemFree(p)
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return result
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def __cmp__(self, other):
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if isinstance(other, GUID):
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return cmp(bytes(self), bytes(other))
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return -1
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def __nonzero__(self):
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return self != GUID_null
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def __eq__(self, other):
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return isinstance(other, GUID) and bytes(self) == bytes(other)
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def __hash__(self):
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# We make GUID instances hashable, although they are mutable.
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return hash(bytes(self))
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def copy(self):
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return GUID(str(self))
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@classmethod
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def from_progid(cls, progid):
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"""Get guid from progid, ...
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"""
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if hasattr(progid, "_reg_clsid_"):
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progid = progid._reg_clsid_
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if isinstance(progid, cls):
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return progid
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elif isinstance(progid, ct.basestring):
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if progid.startswith("{"):
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return cls(progid)
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inst = cls()
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_CLSIDFromProgID(str(progid), ct.byref(inst))
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return inst
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else:
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raise TypeError("Cannot construct guid from %r" % progid)
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def as_progid(self):
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"Convert a GUID into a progid"
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progid = ct.c_wchar_p()
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_ProgIDFromCLSID(ct.byref(self), ct.byref(progid))
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result = progid.value
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_CoTaskMemFree(progid)
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return result
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@classmethod
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def create_new(cls):
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"Create a brand new guid"
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guid = cls()
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_CoCreateGuid(ct.byref(guid))
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return guid
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GUID_null = GUID()
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__all__ = ["GUID"]
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