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# Copyright (c) 2015-2019 Vector 35 Inc
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
from __future__ import absolute_import
import ctypes
# Binary Ninja components
from binaryninja import _binaryninjacore as core
from binaryninja.enums import MetadataType
# 2-3 compatibility
from binaryninja import range
from binaryninja import pyNativeStr
import numbers
class Metadata(object):
def __init__(self, value=None, signed=None, raw=None, handle=None):
if handle is not None:
self.handle = handle
elif isinstance(value, numbers.Integral):
if signed:
self.handle = core.BNCreateMetadataSignedIntegerData(value)
else:
self.handle = core.BNCreateMetadataUnsignedIntegerData(value)
elif isinstance(value, bool):
self.handle = core.BNCreateMetadataBooleanData(value)
elif isinstance(value, (str, bytes)):
if raw:
if isinstance(value, str):
value = bytes(bytearray(ord(i) for i in value))
buffer = (ctypes.c_ubyte * len(value)).from_buffer_copy(value)
self.handle = core.BNCreateMetadataRawData(buffer, len(value))
else:
self.handle = core.BNCreateMetadataStringData(value)
elif isinstance(value, float):
self.handle = core.BNCreateMetadataDoubleData(value)
elif isinstance(value, (list, tuple)):
self.handle = core.BNCreateMetadataOfType(MetadataType.ArrayDataType)
for elm in value:
md = Metadata(elm, signed, raw)
core.BNMetadataArrayAppend(self.handle, md.handle)
elif isinstance(value, dict):
self.handle = core.BNCreateMetadataOfType(MetadataType.KeyValueDataType)
for elm in value:
md = Metadata(value[elm], signed, raw)
core.BNMetadataSetValueForKey(self.handle, str(elm), md.handle)
else:
raise ValueError("{} doesn't contain type of: int, bool, str, float, list, dict".format(type(value).__name__))
@property
def value(self):
if self.is_integer:
return int(self)
elif self.is_string:
return str(self)
elif self.is_raw:
return bytes(self)
elif self.is_float:
return float(self)
elif self.is_boolean:
return bool(self)
elif self.is_array:
return list(self)
elif self.is_dict:
return self.get_dict()
raise TypeError()
def get_dict(self):
if not self.is_dict:
raise TypeError()
result = {}
for key in self:
result[key] = self[key]
return result
@property
def type(self):
return MetadataType(core.BNMetadataGetType(self.handle))
@property
def is_integer(self):
return self.is_signed_integer or self.is_unsigned_integer
@property
def is_signed_integer(self):
return core.BNMetadataIsSignedInteger(self.handle)
@property
def is_unsigned_integer(self):
return core.BNMetadataIsUnsignedInteger(self.handle)
@property
def is_float(self):
return core.BNMetadataIsDouble(self.handle)
@property
def is_boolean(self):
return core.BNMetadataIsBoolean(self.handle)
@property
def is_string(self):
return core.BNMetadataIsString(self.handle)
@property
def is_raw(self):
return core.BNMetadataIsRaw(self.handle)
@property
def is_array(self):
return core.BNMetadataIsArray(self.handle)
@property
def is_dict(self):
return core.BNMetadataIsKeyValueStore(self.handle)
def remove(self, key_or_index):
if isinstance(key_or_index, str) and self.is_dict:
core.BNMetadataRemoveKey(self.handle, key_or_index)
elif isinstance(key_or_index, int) and self.is_array:
core.BNMetadataRemoveIndex(self.handle, key_or_index)
else:
raise TypeError("remove only valid for dict and array objects")
def __len__(self):
if self.is_array or self.is_dict or self.is_string or self.is_raw:
return core.BNMetadataSize(self.handle)
raise Exception("Metadata object doesn't support len()")
def __iter__(self):
if self.is_array:
for i in range(core.BNMetadataSize(self.handle)):
yield Metadata(handle=core.BNMetadataGetForIndex(self.handle, i)).value
elif self.is_dict:
result = core.BNMetadataGetValueStore(self.handle)
try:
for i in range(result.contents.size):
if isinstance(result.contents.keys[i], bytes):
yield str(pyNativeStr(result.contents.keys[i]))
else:
yield result.contents.keys[i]
finally:
core.BNFreeMetadataValueStore(result)
else:
raise Exception("Metadata object doesn't support iteration")
def __getitem__(self, value):
if self.is_array:
if not isinstance(value, int):
raise ValueError("Metadata object only supports integers for indexing")
if value >= len(self):
raise IndexError("Index value out of range")
return Metadata(handle=core.BNMetadataGetForIndex(self.handle, value)).value
if self.is_dict:
if not isinstance(value, str):
raise ValueError("Metadata object only supports strings for indexing")
handle = core.BNMetadataGetForKey(self.handle, value)
if handle is None:
raise KeyError(value)
return Metadata(handle=handle).value
raise NotImplementedError("Metadata object doesn't support indexing")
def __str__(self):
if self.is_string:
return str(core.BNMetadataGetString(self.handle))
if self.is_raw:
length = ctypes.c_ulonglong()
length.value = 0
native_list = core.BNMetadataGetRaw(self.handle, ctypes.byref(length))
out_list = []
for i in range(length.value):
out_list.append(native_list[i])
core.BNFreeMetadataRaw(native_list)
return ''.join(chr(a) for a in out_list)
raise ValueError("Metadata object not a string or raw type")
def __bytes__(self):
return bytes(bytearray(ord(i) for i in self.__str__()))
def __int__(self):
if self.is_signed_integer:
return core.BNMetadataGetSignedInteger(self.handle)
if self.is_unsigned_integer:
return core.BNMetadataGetUnsignedInteger(self.handle)
raise ValueError("Metadata object not of integer type")
def __float__(self):
if not self.is_float:
raise ValueError("Metadata object is not float type")
return core.BNMetadataGetDouble(self.handle)
def __nonzero__(self):
if not self.is_boolean:
raise ValueError("Metadata object is not boolean type")
return core.BNMetadataGetBoolean(self.handle)
def __eq__(self, other):
if isinstance(other, int) and self.is_integer:
return int(self) == other
elif isinstance(other, str) and (self.is_string or self.is_raw):
return str(self) == other
elif isinstance(other, float) and self.is_float:
return float(self) == other
elif isinstance(other, bool) and self.is_boolean:
return bool(self) == other
elif self.is_array and ((isinstance(other, Metadata) and other.is_array) or isinstance(other, list)):
if len(self) != len(other):
return False
for a, b in zip(self, other):
if a != b:
return False
return True
elif self.is_dict and ((isinstance(other, Metadata) and other.is_dict) or isinstance(other, dict)):
if len(self) != len(other):
return False
for a, b in zip(self, other):
if a != b or self[a] != other[b]:
return False
return True
elif isinstance(other, Metadata) and self.is_integer and other.is_integer:
return int(self) == int(other)
elif isinstance(other, Metadata) and (self.is_string or self.is_raw) and (other.is_string or other.is_raw):
return str(self) == str(other)
elif isinstance(other, Metadata) and self.is_float and other.is_float:
return float(self) == float(other)
elif isinstance(other, Metadata) and self.is_boolean and other.is_boolean:
return bool(self) == bool(other)
raise NotImplementedError()
def __ne__(self, other):
if isinstance(other, int) and self.is_integer:
return int(self) != other
elif isinstance(other, str) and (self.is_string or self.is_raw):
return str(self) != other
elif isinstance(other, float) and self.is_float:
return float(self) != other
elif isinstance(other, bool):
return bool(self) != other
elif self.is_array and ((isinstance(other, Metadata) and other.is_array) or isinstance(other, list)):
if len(self) != len(other):
return True
areEqual = True
for a, b in zip(self, other):
if a != b:
areEqual = False
return not areEqual
elif self.is_dict and ((isinstance(other, Metadata) and other.is_dict) or isinstance(other, dict)):
if len(self) != len(other):
return True
for a, b in zip(self, other):
if a != b or self[a] != other[b]:
return True
return False
elif isinstance(other, Metadata) and self.is_integer and other.is_integer:
return int(self) != int(other)
elif isinstance(other, Metadata) and (self.is_string or self.is_raw) and (other.is_string or other.is_raw):
return str(self) != str(other)
elif isinstance(other, Metadata) and self.is_float and other.is_float:
return float(self) != float(other)
elif isinstance(other, Metadata) and self.is_boolean and other.is_boolean:
return bool(self) != bool(other)
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