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File.py
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152 lines (123 loc) · 4.86 KB
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from __future__ import annotations
from collections import namedtuple
from os.path import basename
from typing import TYPE_CHECKING, Dict, Optional
from ..helpers import ImportHelper
from ..streams import EndianBinaryReader, EndianBinaryWriter
if TYPE_CHECKING:
from ..environment import Environment
DirectoryInfo = namedtuple("DirectoryInfo", "path offset size")
class File:
name: str
files: Dict[str, File]
environment: Environment
cab_file: str
is_changed: bool
signature: str
packer: str
is_dependency: bool
parent: Optional[File]
def __init__(
self,
parent: Optional[File] = None,
name: Optional[str] = None,
is_dependency: bool = False,
):
self.files = {}
self.is_changed = False
self.cab_file = "CAB-UnityPy_Mod.resS"
self.parent = parent
self.environment = getattr(parent, "environment", parent) if parent else None
self.name = basename(name) if isinstance(name, str) else ""
self.is_dependency = is_dependency
def get_assets(self):
if isinstance(self, SerializedFile.SerializedFile):
return self
for f in self.files.values():
if isinstance(f, (BundleFile.BundleFile, WebFile.WebFile)):
for asset in f.get_assets():
yield asset
elif isinstance(f, SerializedFile.SerializedFile):
yield f
def get_filtered_objects(self, obj_types: Optional[list] = None):
if obj_types is None or len(obj_types) == 0:
return self.get_objects()
for f in self.files.values():
if isinstance(f, (BundleFile.BundleFile, WebFile.WebFile)):
for obj in f.objects:
if obj.type in obj_types:
yield obj
elif isinstance(f, SerializedFile.SerializedFile):
for obj in f.objects.values():
if obj.type in obj_types:
yield obj
def get_objects(self):
for f in self.files.values():
if isinstance(f, (BundleFile.BundleFile, WebFile.WebFile)):
for obj in f.objects:
yield obj
elif isinstance(f, SerializedFile.SerializedFile):
for obj in f.objects.values():
yield obj
elif isinstance(f, ObjectReader.ObjectReader):
yield f
def read_files(self, reader: EndianBinaryReader, files: list):
# read file data and convert it
for node in files:
reader.Position = node.offset
name = node.path
node_reader = EndianBinaryReader(reader.read(node.size), offset=(reader.BaseOffset + node.offset))
f = ImportHelper.parse_file(node_reader, self, name, is_dependency=self.is_dependency)
if isinstance(f, (EndianBinaryReader, SerializedFile.SerializedFile)):
if self.environment:
self.environment.register_cab(name, f)
# required for BundleFiles
f.flags = getattr(node, "flags", 0)
self.files[name] = f
def get_writeable_cab(self, name: Optional[str] = None):
"""
Creates a new cab file in the bundle that contains the given data.
This is useful for asset types that use resource files.
"""
if not name:
name = self.cab_file
if not name:
return None
if name in self.files:
if isinstance(self.files[name], EndianBinaryWriter):
return self.files[name]
else:
raise ValueError("This cab already exists and isn't an EndianBinaryWriter")
writer = EndianBinaryWriter()
# try to find another resource file to copy the flags from
for fname, f in self.files.items():
if fname.endswith(".resS"):
writer.flags = f.flags
writer.endian = f.endian
break
else:
writer.flags = 0
writer.name = name
self.files[name] = writer
return writer
@property
def container(self):
return {path: obj for f in self.files.values() if isinstance(f, File) for path, obj in f.container.items()}
def get(self, key, default=None):
return getattr(self, key, default)
def keys(self):
return self.files.keys()
def items(self):
return self.files.items()
def values(self):
return self.files.values()
def __getitem__(self, item):
return self.files[item]
def __repr__(self):
return f"<{self.__class__.__name__}>"
def mark_changed(self):
if isinstance(self.parent, File):
self.parent.mark_changed()
self.is_changed = True
# recursive import requires the import down here
from . import BundleFile, ObjectReader, SerializedFile, WebFile # noqa: E402