def warp_action(name='warp_action'):
return Struct(
name, Byte('warp_type'),
Switch('warp_action_type',
lambda ctx: ctx['warp_type'], {
1: LazyBound('next', lambda: WARP_WORLD),
2: HexAdapter(Field('uuid', 16)),
3: SBInt32('alias')
},
default=Pass))
"data" / Switch(
lambda ctx: ctx.fxMagic,
{
'FXP_PARAMS':
"data" / Struct(
"prgName" / String(28, padchar='\0'),
Array(lambda ctx: ctx['_']['count'], "params" / Float32b),
),
'FXP_OPAQUE_CHUNK':
"data" / Struct(
"prgName" / String(28, padchar='\0'),
"size" / Int32ub,
"chunk" / Bytes(lambda ctx: ctx['size']),
),
'FXB_REGULAR':
"data" / Struct(
"future" / Bytes(128), # zeros
# Array of FXP_PARAMS vst2preset
Array(lambda ctx: ctx['_']['count'],
"presets" / LazyBound(lambda: vst2preset)),
),
'FXB_OPAQUE_CHUNK':
"data" / Struct(
"future" / Bytes(128), # zeros
"size" / Int32ub,
# Unknown format of internal chunk
"chunk" / Bytes(lambda ctx: ctx['size']),
),
}),
)
class HexAdapter(Adapter):
def _encode(self, obj, context):
# The code seems backward, but I assure you it's correct.
return obj.decode('hex')
def _decode(self, obj, context):
return obj.encode('hex')
WARP_WORLD = Struct(
'to_world', Byte('world_id'),
Switch('world_type',
lambda ctx: ctx['world_id'], {
1: LazyBound('next', lambda: WARP_WORLD_CELESTIAL),
2: LazyBound('next', lambda: WARP_WORLD_PLAYER),
3: LazyBound('next', lambda: WARP_WORLD_MISSION)
},
default=Pass))
WARP_WORLD_CELESTIAL = Struct(
'celestial_world', SBInt32('x'), SBInt32('y'), SBInt32('z'),
SBInt32('planet'), SBInt32('satellite'), Optional(Byte('has_position')),
If(lambda ctx: ctx['has_position'],
Struct('position', SBInt32('x'), SBInt32('y'))))
WARP_WORLD_PLAYER = Struct(
'player_world', HexAdapter(Field('uuid', 16)),
Optional(Byte('has_position')),
If(lambda ctx: ctx['has_position'],
OP_TEST=26,
OP_TESTSET=27,
OP_CALL=28,
OP_TAILCALL=29,
OP_RETURN=30,
OP_FORLOOP=31,
OP_FORPREP=32,
OP_TFORLOOP=33,
OP_SETLIST=34,
OP_CLOSE=35,
OP_CLOSURE=36,
OP_VARARG=37,
)
# String = PascalString(LazyBound(lambda: LuaSize_t), "ascii")
String = Struct("size" / LazyBound(lambda: LuaSize_t),
"str" / Bytes(this.size))
GlobalHead = Struct(
"signature" / Const(b"\x1bLua"),
"version" / Version,
"format" / Format,
"endian" / Endian,
"size_int" / Int8ul,
"size_size_t" / Int8ul,
"size_instruction" / Int8ul,
"size_lua_number" / Int8ul,
"lua_num_valid" / Byte,
)
ProtoHead = Struct("source" / String, "linedefined" / Int32ul,
)
thread_group_snapshot = Struct(
predefined_name_substruct,
'obj' / Struct('tgs_id' / Int64ul, 'tgs_name' /
Padded(16, CString('utf8')), 'tgs_flags' / Int64ul),
)
type_array_pad0 = Struct(
'flags_type' / Computed(lambda ctx: (ctx._.flags >> 32) & 0xffffffff),
'type' /
Computed(lambda ctx: kcdata_types_enum.decmapping[ctx.flags_type]),
'count' / Computed(lambda ctx: ctx._.flags & 0xffffffff),
'name' / Computed(lambda ctx: predefined_names[ctx.type]),
'obj' / Array(
this.count,
LazyBound(lambda: Switch(lambda ctx: ctx.type,
kcdata_types_structures,
default=GreedyBytes))),
)
type_array_pad4 = Struct(
'flags_type' / Computed(lambda ctx: (ctx._.flags >> 32) & 0xffffffff),
'type' /
Computed(lambda ctx: kcdata_types_enum.decmapping[ctx.flags_type]),
'count' / Computed(lambda ctx: ctx._.flags & 0xffffffff),
'name' / Computed(lambda ctx: predefined_names[ctx.type]),
'obj' / Array(
this.count,
LazyBound(lambda: Switch(lambda ctx: ctx.type,
kcdata_types_structures,
default=GreedyBytes))),
Padding(4),
)
"was_same_owner" / Int16ul, "indirect_fire_flag" / Byte,
"move_sprite_id" / Int16ul, "fight_sprite_id" / Int16ul,
"wait_sprite_id" / Int16ul, "last_target_position" / vector)
unit_action = Struct(
"type" / Int16ul, "data" / If(
lambda ctx: ctx.type > 0,
Struct(
"state" / IfThenElse(
lambda ctx: find_version(ctx) in [Version.AOK, Version.AOC],
Byte, Int32ul), "target_object_pointer" / Int32sl,
"target_object_pointer2" / Int32sl, "target_object_id" / Int32sl,
"target_object_id_2" / Int32sl, "position" / vector,
"timer" / Float32l, "target_moved_state" / Byte,
"task_id" / Int16ul, "sub_action_value" / Byte, "sub_actions" /
LazyBound(lambda x: action_list), "sprite_id" / Int16sl,
Embedded("additional" / Switch(lambda ctx: ctx._.type, {
1: move_to,
3: enter,
9: attack,
21: make
},
default=Pass)))))
action_list = "action_list" / Struct("actions" / RepeatUntil(
lambda x, lst, ctx: lst[-1].type == 0, unit_action))
action = "action" / Struct(
Embedded(base_moving), "waiting" / Byte, "command_flag" / Byte,
"selected_group_info" / If(lambda ctx: find_version(ctx) != Version.AOK,
Int16ul), "actions" / action_list)
l = []
key = evaluate(self.key, context)
for i in obj:
l.append(i ^ key)
return bytes(l)
def _encode(self, obj, context, path):
l = []
key = evaluate(self.key, context)
for i in obj:
l.append(i ^ key)
return bytes(l)
String = Struct(
"size" / LazyBound(lambda: LuaSize_t), "str" / StrAdapter(
(this.size * 13 + 55) & 0xff, Bytes(this.size)))
GlobalHead = Struct("signature" / Const(b"\x1bFate/Z\x1b"),
"version" / Version, "format" / Format, "endian" / Endian,
"size_int" / Int8ul, "size_size_t" / Int8ul,
"size_instruction" / Int8ul, "size_lua_number" / Int8ul,
"lua_num_valid" / Byte)
ProtoHead = Struct("numparams" / Int8ul, "source" / String, "nups" / Int8ul,
"linedefined" / Int32ul, "is_vararg" / Int8ul,
"lastlinedefined" / Int32ul, "maxstacksize" / Int8ul)
class InstrctionAdapter(Adapter):
def _decode(self, obj, context, path):
)
unit_action = Struct(
"type"/Int16ul,
"data"/If(lambda ctx: ctx.type > 0, Struct(
"state"/IfThenElse(lambda ctx: find_version(ctx) in [Version.AOK, Version.AOC, Version.HD], Byte, Int32ul),
"target_object_pointer"/Int32sl,
"target_object_pointer2"/Int32sl,
"target_object_id"/Int32sl,
"target_object_id_2"/Int32sl,
"position"/vector,
"timer"/Float32l,
"target_moved_state"/Byte,
"task_id"/Int16ul,
"sub_action_value"/Byte,
"sub_actions"/LazyBound(lambda x: action_list),
"sprite_id"/Int16sl,
Embedded("additional"/Switch(lambda ctx: ctx._.type, {
1: move_to,
3: enter,
9: attack,
21: make
}, default=Pass))
))
)
action_list = "action_list"/Struct(
"actions"/RepeatUntil(lambda x,lst,ctx: lst[-1].type == 0, unit_action)
)
action = "action"/Struct(
Struct(
'data',
String('prgName', 28, padchar='\0'),
Array(lambda ctx: ctx['_']['count'], BFloat32('params')),
),
'FXP_OPAQUE_CHUNK':
Struct(
'data',
String('prgName', 28, padchar='\0'),
UBInt32('size'),
Bytes('chunk', lambda ctx: ctx['size']),
),
'FXB_REGULAR':
Struct(
'data',
Bytes('future', 128), # zeros
# Array of FXP_PARAMS vst2preset
Array(lambda ctx: ctx['_']['count'],
LazyBound('presets', lambda: vst2preset)),
),
'FXB_OPAQUE_CHUNK':
Struct(
'data',
Bytes('future', 128), # zeros
UBInt32('size'),
# Unknown format of internal chunk
Bytes('chunk', lambda ctx: ctx['size']),
),
}),
)
HEXINT32 = 20
HEXINT64 = 21
COUNTEDSTRING = 22
COUNTEDANSISTRING = 23
STRUCT = 24
COUNTEDBINARY = 25
CCOUNT = 32
VCCOUNT = 64
CHAIN = 128
TlMetaDataField = Struct(
"name" / CString("ascii"), "tag_in" / Int8ul,
"tag_out" / If(lambda this: this.tag_in & TagIn.CHAIN.value,
LazyBound(lambda: Int8ul)))
TlMetaData = Struct("size" / Int16ul, "tag" / Int8ul,
"name" / CString("ascii"),
"fields" / GreedyRange(TlMetaDataField))
def build_tracelogging(event):
"""
Build tracelogging based on the source event
Check if event have an extended
:param event: event that encompass Tracelogging data
"""
if event.extended_data is not None:
for extended_data in event.extended_data:
if extended_data.ext_type == 11:
'WIPTag',
'name' / WIPString,
'type' / WIPTagType,
'data_start' / Int64sl,
'data_end' / Int64sl,
# 'start'/Tell,
# OneOf(Computed(this.start == this.data_start), [True]),
'data_size' / Computed(this.data_end - this.data_start),
'data' / If(
this.data_end > this.data_start,
Switch(
this.type,
dict(
WIP_TAG_LIST=RepeatUntil(
lambda obj, ctx: obj.data_end >= ctx.data_end,
LazyBound(lambda: WIPTag)),
WIP_TAG_EXTENDED=Bytes(10),
WIP_TAG_DOUBLE=Float64l,
WIP_TAG_FLOAT=Float32l,
WIP_TAG_INT64=Int64sl,
WIP_TAG_INT32=Array(this.data_size // 4, Int32sl),
WIP_TAG_UINT32=Array(this.data_size // 4, Int32ul),
WIP_TAG_CHAR=Array(this.data_size, Int8ul),
WIP_TAG_BOOL=Int8ul,
WIP_TAG_STRING=WIPString,
))),
'end' / Tell,
# pad to get to data_end
Padding(this.data_end - this.end),
)
tuple : 105,
etString : 107,
list : 108,
Binary : 109,
long : 111,
Fun : 112,
MFA : 113,
map : 116,
BitBinary : 77,
}
if obj == []:
return 106
return mapping[obj.__class__]
# Recurrent term
term_ = LazyBound(lambda: term)
atom_cache_ref = ExprAdapter(Int8ub,
encoder=lambda obj, ctx: obj.index,
decoder=lambda obj, ctx: AtomCacheReference(obj))
small_integer = Int8ub
integer = Int32sb
float_ = ExprAdapter(PaddedString(31, encoding="ascii"),
encoder=lambda obj, ctx: u"{:.20e} ".format(obj),
decoder=lambda obj, ctx: float(obj))
atom = PascalString(lengthfield=Int16ub, encoding="latin1")
reference = ExprAdapter(Sequence("node" / term_,
"id" / Int32ub,
"creation" / Int8ub),
encoder=lambda obj, ctx: (obj.node, obj.id, obj.creation),
decoder=lambda obj, ctx: Reference(*obj))
class FNVPlugin(BasePlugin):
"""The plugin for Fallout: New Vegas.
This plugin structure *should* handle plugins for the games:
- Fallout 3
- Fallout: New Vegas
Note:
This structure *currently* reads all data on initialization.
This may appear as *slower* initialization times for larger plugins.
Should be fixed by
`lazy constructs <https://construct.readthedocs.io/en/latest/lazy.html>`_
when they become more stable.
**Credit:**
- `FopDoc <https://tes5edit.github.io/fopdoc/FalloutNV/Records.html>`_
"""
subrecord_struct = Struct(
"type" / PaddedString(4, "utf8"),
"data_size" / Int16ul,
"data" / Bytes(lambda this: this.data_size),
"parsed"
/ Computed(
lambda this: FNVPlugin.parse_subrecord(
this._.id, this._.type, this.type, this.data
)
),
)
"""The structure for FO3/FNV subrecords.
Returns:
:class:`~construct.core.Struct`: The structure of FO3/FNV subrecords
"""
record_struct = Struct(
"type" / PaddedString(4, "utf8"),
"data_size" / Int32ul,
"flags"
/ FlagsEnum(
Int32ul,
master=0x00000001,
_unknown_0=0x00000002,
_unknown_1=0x00000004,
_unknown_2=0x00000008,
form_initialized=0x00000010,
deleted=0x00000020,
constant=0x00000040,
fire_disabled=0x00000080,
inaccessible=0x00000100,
casts_shadows=0x00000200,
persistent=0x00000400,
initially_disabled=0x00000800,
ignored=0x00001000,
no_voice_filter=0x00002000,
cannot_save=0x00004000,
visible_when_distant=0x00008000,
random_anim_start=0x00010000,
dangerous=0x00020000,
compressed=0x00040000,
cant_wait=0x00080000,
_unknown_3=0x00100000,
_unknown_4=0x00200000,
_unknown_5=0x00400000,
_unknown_6=0x00800000,
destructible=0x01000000,
obstacle=0x02000000,
navmesh_filter=0x04000000,
navmesh_box=0x08000000,
non_pipboy=0x10000000,
child_can_use=0x20000000,
navmesh_ground=0x40000000,
_unknown_7=0x80000000,
),
"id" / Int32ul,
"revision" / Int32ul,
"version" / Int16ul,
"_unknown_0" / Int16ul,
# NOTE: ignores compressed data size as it is handled by GreedyBytes
If(lambda this: this.flags.compressed, Padding(4)),
"data"
/ IfThenElse(
lambda this: this.flags.compressed,
Compressed(Bytes(lambda this: this.data_size), "zlib"),
Bytes(lambda this: this.data_size),
),
"subrecords"
/ Computed(
lambda this: GreedyRange(FNVPlugin.subrecord_struct).parse(
this.data, id=this.id, type=this.type
)
),
)
"""The structure for FO3/FNV records.
Returns:
:class:`~construct.core.Struct`: The structure of FO3/FNV records
"""
# TODO: instead of using ``GreedyRange`` to handle parsing unknown length lists,
# should probably use other repeaters to avoid messy construct debugging
# (will always raise exception when expects record type to exist, but gets 0 bytes)
group_struct = Struct(
"type" / Const(b"GRUP"),
"group_size" / Int32ul,
# TODO: find a better way of lazily building ``label`` in place
# instead of computing it later
# NOTE: deferred until group_type is determined
"_label" / Bytes(4),
"group_type"
/ Enum(
Int32sl,
top_level=0,
world_children=1,
interior_cell_block=2,
interior_cell_subblock=3,
exterior_cell_block=4,
exterior_cell_subblock=5,
cell_children=6,
topic_children=7,
cell_persistent_children=8,
cell_temporary_children=9,
cell_visible_distant_children=10,
),
"label"
/ Computed(
lambda this: Switch(
this.group_type,
{
"top_level": PaddedString(4, "utf8"),
"world_children": FNVFormID(["WRLD"]),
"interior_cell_block": Int32sl,
"interior_cell_subblock": Int32sl,
"exterior_cell_block": Struct("y" / Int8sl, "x" / Int8sl),
"exterior_cell_subblock": Struct("y" / Int8sl, "x" / Int8sl),
"cell_children": FNVFormID(["CELL"]),
"topic_children": FNVFormID(["DIAL"]),
"cell_persistent_children": FNVFormID(["CELL"]),
"cell_temporary_children": FNVFormID(["CELL"]),
"cell_visible_distant_children": FNVFormID(["CELL"]),
},
default=GreedyBytes,
).parse(this._label)
),
"stamp" / Int16ul,
"_unknown_0" / Bytes(6),
"data" / Bytes(lambda this: this.group_size - 24),
"subgroups"
/ If(
lambda this: (len(this.data) > 4 and this.data[:4] == b"GRUP"),
Computed(
lambda this: GreedyRange(
LazyBound(lambda: FNVPlugin.group_struct)
).parse(this.data)
),
),
"records"
/ If(
lambda this: this.subgroups is None,
Computed(
lambda this: GreedyRange(FNVPlugin.record_struct).parse(this.data)
),
),
)
"""The structure for FO3/FNV groups.
Returns:
:class:`~construct.core.Struct`: The structure of FO3/FNV groups
"""
plugin_struct = Struct(
"header" / record_struct * "Plugin header record",
"groups" / GreedyRange(group_struct) * "Plugin groups",
)
"""The structure for FO3/FNV plugins.
Returns:
:class:`~construct.core.Struct`: The structure of FO3/FNV plugins
"""
# NOTE: working record is mangaled in order to protect state during
# subrecord parsing for record state
__working_record = {}
@classmethod
def can_handle(cls, filepath: str) -> bool:
"""Determines if a given file can be handled by the plugin.
Args:
filepath (str): The filepath to evaluate
Raises:
FileNotFoundError: When the given `filepath` cannot be found
Returns:
bool: True if file can be handled, otherwise False
"""
if not os.path.isfile(filepath):
raise FileNotFoundError(f"file {filepath!r} does not exist")
header = cls.record_struct.parse_file(filepath)
# NOTE: must clear class working record after every "full" file parse
# otherwise, subsequent parses will have fragmented data when trying to discover
# and parse subrecords
cls.__working_record = {}
return header.type == "TES4" and header.version == 15
@classmethod
def parse_subrecord(
cls,
record_id: int,
record_type: str,
subrecord_type: str,
subrecord_data: bytes,
strict: bool = True,
) -> Container:
"""Parses a subrecord's data.
Args:
record_type (str): The parent record type
subrecord_type (str): The subrecord type
subrecord_data (bytes): The subrecord data to parse
strict (bool): Defaults to True, If True, enforce strict subrecord discovery
Returns:
Container: The resulting parsed container
"""
(record_type, subrecord_type) = (record_type.upper(), subrecord_type.upper())
# handle reset of working record state
if record_id not in cls.__working_record:
cls.__working_record[record_id] = []
record_subrecords = RecordMapping.get(record_type)
if record_subrecords:
(parsed, working_record) = record_subrecords.handle_working(
subrecord_type,
subrecord_data,
cls.__working_record[record_id],
strict=strict,
)
cls.__working_record[record_id].extend(working_record)
return parsed
"BinaryArrayTypeEnum" / BinaryArrayTypeEnumeration,
"Rank" / Int32ul,
"Lengths" / Array(this.Rank, Int32ul),
"LowerBounds" / If(this.BinaryArrayTypeEnum == BinaryArrayTypeEnumeration.SingleOffset or this.BinaryArrayTypeEnum == BinaryArrayTypeEnumeration.JaggedOffset or this.BinaryArrayTypeEnum == BinaryArrayTypeEnumeration.RectangularOffset, Array(this.Rank, Int32sl)),
"TypeEnum" / BinaryTypeEnumeration,
"Infos" / Switch(this.TypeEnum, {
BinaryTypeEnumeration.Primitive: PrimitiveTypeEnumeration,
BinaryTypeEnumeration.SystemClass: LengthPrefixedString,
BinaryTypeEnumeration.Class: ClassTypeInfo,
BinaryTypeEnumeration.PrimitiveArray: PrimitiveTypeEnumeration},
default=None),
"CountElts" / Computed(lambda ctx: functools.reduce(operator.mul, ctx.Lengths, 1)),
"Values" / Array(this.CountElts, Switch(this.TypeEnum, {
BinaryTypeEnumeration.Primitive: Switch(this.Infos, PrimitiveTypeParsers),
BinaryTypeEnumeration.String: LengthPrefixedString,
BinaryTypeEnumeration.PrimitiveArray: LazyBound(lambda: Record),
BinaryTypeEnumeration.Class: LazyBound(lambda: Record),
BinaryTypeEnumeration.SystemClass: LazyBound(lambda: Record),
})))
# Records
SerializationHeaderRecord = Struct(
"RecordTypeEnum" / RecordTypeEnum,
"RootId" / Int32ul,
"HeaderId" / Int32ul,
"MajorVersion" / Int32ul,
"MinorVersion" / Int32ul)
BinaryObjectString = Struct(
"RecordTypeEnum" / RecordTypeEnum,
SystemTraceMarker = Enum(
Int8ul,
SYSTEM_TRACE_MARKER_32=0x01,
SYSTEM_TRACE_MARKER_64=0x02,
COMPACT_TRACE_MARKER_32=0x03,
COMPACT_TRACE_MARKER_64=0x04,
)
SystemTraceHeader = Struct(
"start_mark" / Computed(lambda this: this._io.tell()),
"marker" / wmi_trace_marker(SystemTraceMarker),
"header" / WmiTracePacket,
"thread_id" / Int32ul,
"process_id" / Int32ul,
"system_time" / Int64ul,
"kernel_time" / If(lambda this: this.marker.type.enum in [SystemTraceMarker.SYSTEM_TRACE_MARKER_32, SystemTraceMarker.SYSTEM_TRACE_MARKER_64], LazyBound(lambda: Int32ul)),
"user_time" / If(lambda this: this.marker.type.enum in [SystemTraceMarker.SYSTEM_TRACE_MARKER_32, SystemTraceMarker.SYSTEM_TRACE_MARKER_64], LazyBound(lambda: Int32ul)),
"sizeof" / Computed(lambda this: this._io.tell() - this.start_mark)
)
SystemTraceRecord = Struct(
"system_header" / SystemTraceHeader,
"mof_data" / Bytes(lambda this: this.system_header.header.size - this.system_header.sizeof)
)
class System:
"""
A System log from Windows Kernel
"""
HEXINT32 = 20
HEXINT64 = 21
COUNTEDSTRING = 22
COUNTEDANSISTRING = 23
STRUCT = 24
COUNTEDBINARY = 25
CCOUNT = 32
VCCOUNT = 64
CHAIN = 128
TlMetaDataField = Struct(
"name" / CString("ascii"), "tag_in" / Int8ul,
"tag_out" / If(lambda this: this.tag_in & TagIn.CHAIN.value,
LazyBound(lambda: Int8ul)),
"unknown" / If(lambda this: this.tag_out and bool(this.tag_out & 0x80),
LazyBound(lambda: Int32ul)))
TlMetaData = Struct(
"size" / Int16ul, "tag" / Int8ul,
"unknown" / If(lambda this: this.tag & 0x80, LazyBound(lambda: Int8ul)),
"name" / CString("ascii"), "fields" / GreedyRange(TlMetaDataField))
def build_tracelogging(event):
"""
Build tracelogging based on the source event
Check if event have an extended
:param event: event that encompass Tracelogging data
"""