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Copy pathTypeTreeHelper.py
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524 lines (462 loc) · 15.7 KB
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from typing import Any, Dict, List, Union, Iterable, Tuple
from ..streams import EndianBinaryReader, EndianBinaryWriter
from ctypes import c_uint32
import tabulate
from ..exceptions import TypeTreeError as TypeTreeError
kAlignBytes = 0x4000
class TypeTreeNode(object):
__slots__ = (
"m_Version",
"m_Level",
"m_TypeFlags",
"m_ByteSize",
"m_Index",
"m_MetaFlag",
"m_Type",
"m_Name",
"m_TypeStrOffset",
"m_NameStrOffset",
"m_RefTypeHash",
"m_VariableCount",
)
m_Type: str
m_Name: str
m_ByteSize: int
m_Index: int
m_Version: int
m_MetaFlag: int
m_Level: int
m_TypeStrOffset: int
m_NameStrOffset: int
m_RefTypeHash: str
m_TypeFlags: int
m_VariableCount: int
def __init__(self, data: Union[dict, Iterable[Tuple]] = None, **kwargs):
if isinstance(data, dict):
items = data.items()
elif kwargs:
items = kwargs.items()
else:
items = data
for key, val in items:
setattr(self, key, val)
def __repr__(self):
return f"<TypeTreeNode({self.m_Level} {self.m_Type} {self.m_Name})>"
try:
from ..UnityPyBoost import TypeTreeNode, read_typetree as read_typetree_c
except:
read_typetree_c = None
def node_dict_to_node_cls(nodes: List[dict]) -> List[TypeTreeNode]:
"""Converts all dict-type nodes into TypeTreeNodes
Parameters
----------
nodes : List[dict]
nodes/nodes of the typetree as dict
Returns
-------
List[TypeTreeNode]
a list of TypeTreeNode-type nodes
"""
# legacy support
if not next(iter(nodes[0])).startswith("m_"):
return [
TypeTreeNode(
m_Name=x["name"],
m_Type=x["type"],
m_Level=x["level"],
m_MetaFlag=x["meta_flag"],
)
for x in nodes
]
return [TypeTreeNode(**node) for node in nodes]
def check_nodes(nodes: List[Union[dict, TypeTreeNode]]) -> List[TypeTreeNode]:
"""Checks the type of the nodes and converts them if necessary.
Parameters
----------
nodes : List[Union[dict, TypeTreeNode]]
nodes/nodes of the typetree as dict or TypeTreeNode
Returns
-------
List[TypeTreeNode]
a list of TypeTreeNode-type nodes
"""
if isinstance(nodes, list):
if len(nodes) == 0:
raise ValueError("not enough nodes")
if isinstance(nodes[0], TypeTreeNode):
return nodes
elif isinstance(nodes[0], dict):
return node_dict_to_node_cls(nodes)
raise ValueError(
f"nodes must be a list of dict or TypeTreeNode elements, but received {type(nodes)} - {type(nodes[0]) if isinstance(nodes, list) else ''}"
)
def get_nodes(nodes: List[TypeTreeNode], index: int) -> list:
"""Copies all nodes above the level of the node at the set index.
Parameters
----------
nodes : list
nodes/nodes of the typetree
index : int
index of the node
Returns
-------
list
A list of nodes
"""
level = nodes[index].m_Level
for i, node in enumerate(nodes[index + 1 :], index + 1):
if node.m_Level <= level:
return nodes[index:i]
return nodes[index:]
def read_typetree(
nodes: List[Union[dict, TypeTreeNode]], reader: EndianBinaryReader
) -> dict:
"""Reads the typetree of the object contained in the reader via the node list.
Parameters
----------
nodes : list
List of nodes/nodes
reader : EndianBinaryReader
Reader of the object to be parsed
Returns
-------
dict
The parsed typtree
"""
reader.reset()
nodes = check_nodes(nodes)
if read_typetree_c:
return read_typetree_c(
nodes, reader.read_bytes(reader.byte_size), reader.endian
)
obj = read_value(nodes, reader, c_uint32(0))
read = reader.Position - reader.byte_start
if read != reader.byte_size:
raise TypeTreeError(
f"Error while read type, read {read} bytes but expected {reader.byte_size} bytes",
nodes,
)
return obj
def read_value(nodes: List[TypeTreeNode], reader: EndianBinaryReader, i: c_uint32):
node = nodes[i.value]
typ = node.m_Type
align = (node.m_MetaFlag & kAlignBytes) != 0
if typ == "SInt8":
value = reader.read_byte()
elif typ in ["UInt8", "char"]:
value = reader.read_u_byte()
elif typ in ["short", "SInt16"]:
value = reader.read_short()
elif typ in ["UInt16", "unsigned short"]:
value = reader.read_u_short()
elif typ in ["int", "SInt32"]:
value = reader.read_int()
elif typ in ["UInt32", "unsigned int", "Type*"]:
value = reader.read_u_int()
elif typ in ["long long", "SInt64"]:
value = reader.read_long()
elif typ in ["UInt64", "unsigned long long", "FileSize"]:
value = reader.read_u_long()
elif typ == "float":
value = reader.read_float()
elif typ == "double":
value = reader.read_double()
elif typ == "bool":
value = reader.read_boolean()
elif typ == "string":
value = reader.read_aligned_string()
i.value += 3 # Array, Size, Data(typ)
elif typ == "map": # map == MultiDict
if (nodes[i.value + 1].m_MetaFlag & kAlignBytes) != 0:
align = True
map_ = get_nodes(nodes, i.value)
i.value += len(map_) - 1
first = get_nodes(map_, 4)
second = get_nodes(map_, 4 + len(first))
size = reader.read_int()
value = [None] * size
for j in range(size):
key = read_value(first, reader, c_uint32(0))
value[j] = (key, read_value(second, reader, c_uint32(0)))
elif typ == "TypelessData":
size = reader.read_int()
value = reader.read_bytes(size)
i.value += 2 # Size == int, Data(typ) == char/uint8
else:
# Vector
if i.value < len(nodes) - 1 and nodes[i.value + 1].m_Type == "Array":
if (nodes[i.value + 1].m_MetaFlag & kAlignBytes) != 0:
align = True
vector = get_nodes(nodes, i.value)
i.value += len(vector) - 1
size = reader.read_int()
value = [read_value(vector, reader, c_uint32(3)) for _ in range(size)]
else: # Class
clz = get_nodes(nodes, i.value)
i.value += len(clz) - 1
value = {}
j = c_uint32(1)
while j.value < len(clz):
clz_node = clz[j.value]
value[clz_node.m_Name] = read_value(clz, reader, j)
j.value += 1
if align:
reader.align_stream()
return value
def read_typetree_str(
sb: List[str], nodes: List[Union[dict, TypeTreeNode]], reader: EndianBinaryReader
) -> list:
"""Reads the typetree of the object contained in the reader via the node list and dumps it as string.
Parameters
----------
sb : list
StringBuilder - a list used to build the string dump, should be empty
nodes : list
List of nodes/nodes
reader : EndianBinaryReader
Reader of the object to be parsed
Returns
-------
list
The sb given as input
"""
# reader.reset()
nodes = check_nodes(nodes)
i = c_uint32(0)
while i.value < len(nodes):
read_value_str(sb, nodes, reader, i)
i.value += 1
readed = reader.Position - reader.byte_start
if readed != reader.byte_size:
raise TypeTreeError(
f"Error while read type, read {readed} bytes but expected {reader.byte_size} bytes",
nodes,
)
return sb
def read_value_str(
sb: List[str], nodes: List[TypeTreeNode], reader: EndianBinaryReader, i: c_uint32
) -> list:
node = nodes[i.value]
typ = node.m_Type
align = (node.m_MetaFlag & kAlignBytes) != 0
append = True
if typ == "SInt8":
value = reader.read_byte()
elif typ in ["UInt8", "char"]:
value = reader.read_u_byte()
elif typ in ["short", "SInt16"]:
value = reader.read_short()
elif typ in ["UInt16", "unsigned short"]:
value = reader.read_u_short()
elif typ in ["int", "SInt32"]:
value = reader.read_int()
elif typ in ["UInt32", "unsigned int", "Type*"]:
value = reader.read_u_int()
elif typ in ["long long", "SInt64"]:
value = reader.read_long()
elif typ in ["UInt64", "unsigned long long", "FileSize"]:
value = reader.read_u_long()
elif typ == "float":
value = reader.read_float()
elif typ == "double":
value = reader.read_double()
elif typ == "bool":
value = reader.read_boolean()
elif typ == "string":
value = reader.read_aligned_string()
i.value += 3 # Array, Size, Data(typ)
append = False
sb.append(
'{0}{1} {2} = "{3}"\r\n'.format(
"\t" * node.m_Level, node.m_Type, node.m_Name, value
)
)
elif typ == "map":
if (nodes[i.value + 1].m_MetaFlag & kAlignBytes) != 0:
align = True
map_ = get_nodes(nodes, i.value)
i.value += len(map_) - 1
first = get_nodes(map_, 4)
second = get_nodes(map_, 4 + len(first))
size = reader.read_int()
append = False
sb.append(
"{0}{1} {2}\r\n".format("\t" * node.m_Level, node.m_Type, node.m_Name)
)
sb.append("{0}{1} {2}\r\n".format("\t" * (node.m_Level + 1), "Array", "Array"))
sb.append(
"{0}{1} {2} = {3}\r\n".format(
"\t" * (node.m_Level + 1), "int", "size", size
)
)
for j in range(size):
sb.append("{0}[{1}]\r\n".format("\t" * (node.m_Level + 2), j))
sb.append(
"{0}{1} {2}\r\n".format("\t" * (node.m_Level + 2), "pair", "data")
)
read_value_str(sb, first, reader, c_uint32(0))
read_value_str(sb, second, reader, c_uint32(0))
elif typ == "TypelessData":
size = reader.read_int()
value = reader.read_bytes(size)
i.value += 2 # Size == int, Data(typ) == char/uint8
append = False
sb.append(
"{0}{1} {2}\r\n".format("\t" * node.m_Level, node.m_Type, node.m_Name)
)
sb.append(
"{0}{1} {2} = {3}\r\n".format("\t" * node.m_Level, "int", "size", size)
)
# sb.append("{0}{1} {2} = {3}\r\n".format(
# "\t" * node.level, "UInt8", "data", base64.b64encode(value)))
else:
# Vector
if i.value < len(nodes) - 1 and nodes[i.value + 1].m_Type == "Array":
if (nodes[i.value + 1].m_MetaFlag & kAlignBytes) != 0:
align = True
vector = get_nodes(nodes, i.value)
i.value += len(vector) - 1
size = reader.read_int()
append = False
sb.append(
"{0}{1} {2}\r\n".format("\t" * node.m_Level, node.m_Type, node.m_Name)
)
sb.append(
"{0}{1} {2}\r\n".format("\t" * (node.m_Level + 1), "Array", "Array")
)
sb.append(
"{0}{1} {2} = {3}\r\n".format(
"\t" * (node.m_Level + 1), "int", "size", size
)
)
for j in range(size):
sb.append("{0}[{1}]\r\n".format("\t" * (node.m_Level + 2), j))
read_value_str(sb, vector, reader, c_uint32(3))
else: # Class
clz = get_nodes(nodes, i.value)
i.value += len(clz) - 1
j = c_uint32(1)
append = False
sb.append(
"{0}{1} {2}\r\n".format("\t" * node.m_Level, node.m_Type, node.m_Name)
)
while j.value < len(clz):
read_value_str(sb, clz, reader, j)
j.value += 1
if append:
sb.append(
"{0}{1} {2} = {3}\r\n".format(
"\t" * node.m_Level, node.m_Type, node.m_Name, value
)
)
if align:
reader.align_stream()
return sb
def dump_typetree(nodes: List[TypeTreeNode]) -> str:
"""Dumps the structure of the given nodes.
Parameters
----------
nodes : list
List of nodes/nodes
Returns
-------
str
The dumped structure
"""
field_names = ["m_Level", "m_Type", "m_Name", "m_MetaFlag"]
rows = [[getattr(x, key) for key in field_names] for x in nodes]
return tabulate.tabulate(rows, headers=field_names)
def write_typetree(
obj: dict, nodes: List[Union[dict, TypeTreeNode]], writer: EndianBinaryWriter = None
) -> EndianBinaryWriter:
"""Writes the data of the object via the given typetree of the object into the writer.
Parameters
----------
obj : dict
Object to be saved
nodes : list
List of nodes/nodes
writer : EndianBinaryWriter
Writer of the object to be saved
Returns
-------
EndianBinaryWriter
The writer that was used to save the data of the given object.
"""
if not writer:
writer = EndianBinaryWriter()
nodes = check_nodes(nodes)
i = c_uint32(1)
while i.value < len(nodes):
value = obj[nodes[i.value].m_Name]
write_value(value, nodes, writer, i)
i.value += 1
return writer
def write_value(
value: Any, nodes: List[TypeTreeNode], writer: EndianBinaryWriter, i: c_uint32
):
node = nodes[i.value]
typ = node.m_Type
align = (node.m_MetaFlag & kAlignBytes) != 0
if typ == "SInt8":
writer.write_byte(value)
elif typ in ["UInt8", "char"]:
writer.write_u_byte(value)
elif typ in ["short", "SInt16"]:
writer.write_short(value)
elif typ in ["UInt16", "unsigned short"]:
writer.write_u_short(value)
elif typ in ["int", "SInt32"]:
writer.write_int(value)
elif typ in ["UInt32", "unsigned int", "Type*"]:
writer.write_u_int(value)
elif typ in ["long long", "SInt64"]:
writer.write_long(value)
elif typ in ["UInt64", "unsigned long long", "FileSize"]:
writer.write_u_long(value)
elif typ == "float":
writer.write_float(value)
elif typ == "double":
writer.write_double(value)
elif typ == "bool":
writer.write_boolean(value)
elif typ == "string":
writer.write_aligned_string(value)
i.value += 3 # Array, Size, Data(typ)
elif typ == "map":
if (nodes[i.value + 1].m_MetaFlag & kAlignBytes) != 0:
align = True
map_ = get_nodes(nodes, i.value)
i.value += len(map_) - 1
first = get_nodes(map_, 4)
second = get_nodes(map_, 4 + len(first))
# size
writer.write_int(len(value))
# data
for key, val in value:
write_value(key, first, writer, c_uint32(0))
write_value(val, second, writer, c_uint32(0))
elif typ == "TypelessData":
writer.write_int(len(value))
writer.write_bytes(value)
i.value += 2 # Size == int, Data(typ) == char/uint8
else:
# Vector
if i.value < len(nodes) - 1 and nodes[i.value + 1].m_Type == "Array":
if (nodes[i.value + 1].m_MetaFlag & kAlignBytes) != 0:
align = True
vector = get_nodes(nodes, i.value)
i.value += len(vector) - 1
writer.write_int(len(value))
for val in value:
write_value(val, vector, writer, c_uint32(3))
else: # Class
clz = get_nodes(nodes, i.value)
i.value += len(clz) - 1
j = c_uint32(1)
while j.value < len(clz):
val = value[clz[j.value].m_Name]
write_value(val, clz, writer, j)
j.value += 1
if align:
writer.align_stream()