Add modified rpatool

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rpatool
=======
This is modified version of a [rpatool](https://github.com/shizmob/rpatool) by [shizmob](https://github.com/shizmob).
This is a simple tool allowing you to create, modify and extract Ren'Py Archive (.rpa/.rpi) files.
Currently, only writing to RPAv2/RPAv3 archives is supported.
Usage
-----
rpatool [-l|-x|-c|-d|-a] [-o OUTFILE] [-2] [-3] [-k KEY]
[-p COUNT] [-h] [-v] [-V]
ARCHIVE [FILE [FILE ...]]
positional arguments:
ARCHIVE The Ren'py archive file to operate on
FILE Zero or more files to operate on
actions:
-l, --list List files in archive ARCHIVE
-x, --extract Extract FILEs from ARCHIVE
-c, --create Creative ARCHIVE from FILEs
-d, --delete Delete FILEs from ARCHIVE
-a, --append Append FILEs to ARCHIVE
optional arguments:
-o OUTFILE, --outfile OUTFILE
An alternative output archive file when appending to or
deleting from archives, or output directory when extracting.
-2, --two Use the RPAv2 format for creating/appending to
archives
-3, --three Use the RPAv3 format for creating/appending to
archives (default)
-k KEY, --key KEY The obfuscation key used for creating RPAv3 archives
(default: 0xDEADBEEF)
-p COUNT, --padding COUNT
The maximum number of bytes of padding to add between
files (default: 0)
--all If specified, extracts all .rpa archives in the current directory
-h, --help Print this help and exit
-v, --verbose Be a bit more verbose while performing operations
-V, --version Show version information
The FILE argument can optionally be in ARCHIVE=REAL format, mapping a file in
the archive file system to a file on your real file system. An example of
this is: rpatool -x test.rpa script.rpyc=/home/foo/test.rpyc
Examples
--------
rpatool -x foo.rpa
Will extract every file from `foo.rpa`into the current directory, making subdirectories when necessary.
rpatool -o output -x foo.rpa script.rpyc ui.png
Will extract the files `script.rpyc` and `ui.png` from `foo.rpa` into the directory `output`.
rpatool -c bar.rpa test.jpg script.rpy sprites
Will create the archive `bar.rpa`, containing the files `test.jpg`, `script.rpy` and the directory `sprites`.
rpatool -p 25 -k 12345 -c bar.rpa movies=C:\projects\vn\movies
Will create the archive `bar.rpa` with the obfuscation key `0x12345` and maximum padding of `25`, taking files from `C:\projects\vn\movies` and placing them in the archive folder `movies`.
rpatool -l baz.rpa
Will list all files in the archive `baz.rpa`.
rpatool -v -a foo.rpa sprites=sprites_new
Will add all files from the directory `sprites_new` to the directory `sprites` in the archive, giving more information about what it's doing.
rpatool -o bar_new.rpa -d bar.rpa foo.jpg
Will remove the file `foo.jpg` from the archive `bar.rpa`, storing the result archive in `bar_new.rpa`.
rpatool -all game/
Will extract all the files from all .rpa archives in a `game/` folder.
API
---
`rpatool` can also be included in any other project (following the license conditions, of course) to provide the `RenPyArchive` class.
A small overview:
RenPyArchive([file = None], [version = 3], [padlength = 0], [key = 0xDEADBEEF], [verbose = False])
The constructor, which will optionally load an archive file.
`file`: the archive file to open. If None, no archive will be attempted to open.
`version`: the archive format version used to save the archive when `RenPyArchive.save([file])` is called. Default: 3
`padlength`: the maximum number of bytes of padding to put between files when saving. Default: 0
`key`: the obfuscation key used when saving RPAv3 archives. Default: 0xDEADBEEF
`verbose`: print info on what we are doing to the command line. Default: False
RenPyArchive.load(filename)
Loads an archive file from `filename`. Will raise an `IOError` if the file can't be accessed, or a `ValueError` if the file is not detected as a Ren'Py archive.
RenPyArchive.save([filename])
Save the archive to `filename`. Will raise `ValueError` if the filename isn't given with `filename`, nor previously defined, or an `IOError` if it couldn't save the file.
RenPyArchive.list()
Give a list of all filenames currently in the archive.
RenPyArchive.has_file(filename)
Returns True if `filename` is found in the archive, False otherwhise.
RenPyArchive.add(filename, content)
Add a file to the archive with file `filename` and contents `content`. Will raise a `ValueError` if the filename already exists in the archive.
RenPyArchive.change(filename, content)
Change the contents of a current file in the archive. Will raise an `IOError` if the file isn't known in the archive.
RenPyArchive.remove(filename)
Remove `filename` from the archive. Will raise an `IOError` if the filename isn't known in the archive.
RenPyArchive.read(filename)
Read and return the content of file `filename` in the archive. Will raise an `IOError` if the filename isn't known in the archive.
Disclaimer
----------
This tool is intended for use with files on which the authors allowed modification of and/or extraction from ONLY and the unpermitted use on files where such consent was not given is highly discouraged, and most likely a license violation as well.
Support requests for help with dealing with such files will not be answered.
Credits
-------
Credits for the creation of the Ren'Py archive format and the reference code in Ren'Py go to renpytom.

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#!/usr/bin/env python3
from __future__ import print_function
import sys
import os
import codecs
import pickle
import errno
import random
try:
import pickle5 as pickle
except:
import pickle
if sys.version_info < (3, 8):
print('warning: pickle5 module could not be loaded and Python version is < 3.8,', file=sys.stderr)
print(' newer Ren\'Py games may fail to unpack!', file=sys.stderr)
if sys.version_info >= (3, 5):
print(' if this occurs, fix it by installing pickle5:', file=sys.stderr)
print(' {} -m pip install pickle5'.format(sys.executable), file=sys.stderr)
else:
print(' if this occurs, please upgrade to a newer Python (>= 3.5).', file=sys.stderr)
print(file=sys.stderr)
if sys.version_info[0] >= 3:
def _unicode(text):
return text
def _printable(text):
return text
def _unmangle(data):
if type(data) == bytes:
return data
else:
return data.encode('latin1')
def _unpickle(data):
# Specify latin1 encoding to prevent raw byte values from causing an ASCII decode error.
return pickle.loads(data, encoding='latin1')
elif sys.version_info[0] == 2:
def _unicode(text):
if isinstance(text, unicode):
return text
return text.decode('utf-8')
def _printable(text):
return text.encode('utf-8')
def _unmangle(data):
return data
def _unpickle(data):
return pickle.loads(data)
class RenPyArchive:
file = None
handle = None
files = {}
indexes = {}
version = None
padlength = 0
key = None
verbose = False
RPA2_MAGIC = 'RPA-2.0 '
RPA3_MAGIC = 'RPA-3.0 '
RPA3_2_MAGIC = 'RPA-3.2 '
# For backward compatibility, otherwise Python3-packed archives won't be read by Python2
PICKLE_PROTOCOL = 2
def __init__(self, file=None, version=3, padlength=0, key=0xDEADBEEF, verbose=False):
self.padlength = padlength
self.key = key
self.verbose = verbose
if file is not None:
self.load(file)
else:
self.version = version
def __del__(self):
if self.handle is not None:
self.handle.close()
# Determine archive version.
def get_version(self):
self.handle.seek(0)
magic = self.handle.readline().decode('utf-8')
if magic.startswith(self.RPA3_2_MAGIC):
return 3.2
elif magic.startswith(self.RPA3_MAGIC):
return 3
elif magic.startswith(self.RPA2_MAGIC):
return 2
elif self.file.endswith('.rpi'):
return 1
raise ValueError('the given file is not a valid Ren\'Py archive, or an unsupported version')
# Extract file indexes from opened archive.
def extract_indexes(self):
self.handle.seek(0)
indexes = None
if self.version in [2, 3, 3.2]:
# Fetch metadata.
metadata = self.handle.readline()
vals = metadata.split()
offset = int(vals[1], 16)
if self.version == 3:
self.key = 0
for subkey in vals[2:]:
self.key ^= int(subkey, 16)
elif self.version == 3.2:
self.key = 0
for subkey in vals[3:]:
self.key ^= int(subkey, 16)
# Load in indexes.
self.handle.seek(offset)
contents = codecs.decode(self.handle.read(), 'zlib')
indexes = _unpickle(contents)
# Deobfuscate indexes.
if self.version in [3, 3.2]:
obfuscated_indexes = indexes
indexes = {}
for i in obfuscated_indexes.keys():
if len(obfuscated_indexes[i][0]) == 2:
indexes[i] = [ (offset ^ self.key, length ^ self.key) for offset, length in obfuscated_indexes[i] ]
else:
indexes[i] = [ (offset ^ self.key, length ^ self.key, prefix) for offset, length, prefix in obfuscated_indexes[i] ]
else:
indexes = pickle.loads(codecs.decode(self.handle.read(), 'zlib'))
return indexes
# Generate pseudorandom padding (for whatever reason).
def generate_padding(self):
length = random.randint(1, self.padlength)
padding = ''
while length > 0:
padding += chr(random.randint(1, 255))
length -= 1
return bytes(padding, 'utf-8')
# Converts a filename to archive format.
def convert_filename(self, filename):
(drive, filename) = os.path.splitdrive(os.path.normpath(filename).replace(os.sep, '/'))
return filename
# Debug (verbose) messages.
def verbose_print(self, message):
if self.verbose:
print(message)
# List files in archive and current internal storage.
def list(self):
return list(self.indexes.keys()) + list(self.files.keys())
# Check if a file exists in the archive.
def has_file(self, filename):
filename = _unicode(filename)
return filename in self.indexes.keys() or filename in self.files.keys()
# Read file from archive or internal storage.
def read(self, filename):
filename = self.convert_filename(_unicode(filename))
# Check if the file exists in our indexes.
if filename not in self.files and filename not in self.indexes:
raise IOError(errno.ENOENT, 'the requested file {0} does not exist in the given Ren\'Py archive'.format(
_printable(filename)))
# If it's in our opened archive index, and our archive handle isn't valid, something is obviously wrong.
if filename not in self.files and filename in self.indexes and self.handle is None:
raise IOError(errno.ENOENT, 'the requested file {0} does not exist in the given Ren\'Py archive'.format(
_printable(filename)))
# Check our simplified internal indexes first, in case someone wants to read a file they added before without saving.
if filename in self.files:
self.verbose_print('Reading file {0} from internal storage...'.format(_printable(filename)))
return self.files[filename]
else:
# Read offset and length, seek to the offset and read the file contents.
if len(self.indexes[filename][0]) == 3:
(offset, length, prefix) = self.indexes[filename][0]
else:
(offset, length) = self.indexes[filename][0]
prefix = ''
self.verbose_print('Reading file {0} from data file {1}... (offset = {2}, length = {3} bytes)'.format(
_printable(filename), self.file, offset, length))
self.handle.seek(offset)
return _unmangle(prefix) + self.handle.read(length - len(prefix))
# Modify a file in archive or internal storage.
def change(self, filename, contents):
filename = _unicode(filename)
self.remove(filename)
self.add(filename, contents)
# Add a file to the internal storage.
def add(self, filename, contents):
filename = self.convert_filename(_unicode(filename))
if filename in self.files or filename in self.indexes:
raise ValueError('file {0} already exists in archive'.format(_printable(filename)))
self.verbose_print('Adding file {0} to archive... (length = {1} bytes)'.format(
_printable(filename), len(contents)))
self.files[filename] = contents
# Remove a file from archive or internal storage.
def remove(self, filename):
filename = _unicode(filename)
if filename in self.files:
self.verbose_print('Removing file {0} from internal storage...'.format(_printable(filename)))
del self.files[filename]
elif filename in self.indexes:
self.verbose_print('Removing file {0} from archive indexes...'.format(_printable(filename)))
del self.indexes[filename]
else:
raise IOError(errno.ENOENT, 'the requested file {0} does not exist in this archive'.format(_printable(filename)))
# Load archive.
def load(self, filename):
filename = _unicode(filename)
if self.handle is not None:
self.handle.close()
self.file = filename
self.files = {}
self.handle = open(self.file, 'rb')
self.version = self.get_version()
self.indexes = self.extract_indexes()
# Save current state into a new file, merging archive and internal storage, rebuilding indexes, and optionally saving in another format version.
def save(self, filename=None):
filename = _unicode(filename)
if filename is None:
filename = self.file
if filename is None:
raise ValueError('no target file found for saving archive')
if self.version != 2 and self.version != 3:
raise ValueError('saving is only supported for version 2 and 3 archives')
self.verbose_print('Rebuilding archive index...')
# Merge files added or changed in this session.
files = self.files
# First, read files from the current archive into our files structure.
for file in list(self.indexes.keys()):
content = self.read(file)
del self.indexes[file]
files[file] = content
# Predict header length; we will write it last.
offset = 0
if self.version == 3:
offset = 34
elif self.version == 2:
offset = 25
archive = open(filename, 'wb')
archive.seek(offset)
# Build new indexes while writing files to the archive.
indexes = {}
self.verbose_print('Writing files to archive file...')
for file, content in files.items():
# Generate random padding if needed.
if self.padlength > 0:
padding = self.generate_padding()
archive.write(padding)
offset += len(padding)
archive.write(content)
# Update index.
if self.version == 3:
indexes[file] = [ (offset ^ self.key, len(content) ^ self.key) ]
elif self.version == 2:
indexes[file] = [ (offset, len(content)) ]
offset += len(content)
# Write the indexes.
self.verbose_print('Writing archive index to archive file...')
archive.write(codecs.encode(pickle.dumps(indexes, self.PICKLE_PROTOCOL), 'zlib'))
# Now write the header.
self.verbose_print('Writing header to archive file... (version = RPAv{0})'.format(self.version))
archive.seek(0)
if self.version == 3:
archive.write(codecs.encode('{}{:016x} {:08x}\n'.format(self.RPA3_MAGIC, offset, self.key)))
else:
archive.write(codecs.encode('{}{:016x}\n'.format(self.RPA2_MAGIC, offset)))
archive.close()
# Reload the file in our internal database.
self.load(filename)
if __name__ == "__main__":
import argparse
parser = argparse.ArgumentParser(
description='A tool for working with Ren\'Py archive files.',
epilog='The FILE argument can optionally be in ARCHIVE=REAL format, mapping a file in the archive filesystem to a file on your system. For example: rpatool -x test.rpa script.rpyc=/home/foo/test.rpyc',
add_help=False)
parser.add_argument('archive', metavar='ARCHIVE', nargs='?', help='The Ren\'Py archive file to operate on.')
parser.add_argument('files', metavar='FILE', nargs='*', action='append', help='Zero or more files to operate on.')
parser.add_argument('-l', '--list', action='store_true', help='List files in archive ARCHIVE.')
parser.add_argument('-x', '--extract', action='store_true', help='Extract FILEs from ARCHIVE.')
parser.add_argument('-c', '--create', action='store_true', help='Create ARCHIVE from FILEs.')
parser.add_argument('-d', '--delete', action='store_true', help='Delete FILEs from ARCHIVE.')
parser.add_argument('-a', '--append', action='store_true', help='Append FILEs to ARCHIVE.')
parser.add_argument('-2', '--two', action='store_true', help='Use the RPAv2 format for creating/appending archives.')
parser.add_argument('-3', '--three', action='store_true', help='Use the RPAv3 format for creating/appending archives (default).')
parser.add_argument('-k', '--key', metavar='KEY', help='The obfuscation key used for creating RPAv3 archives, in hexadecimal (default: 0xDEADBEEF).')
parser.add_argument('-p', '--padding', metavar='COUNT', help='The maximum number of padding bytes to add between files (default: 0).')
parser.add_argument('-o', '--outfile', help='An alternative output archive file when appending or deleting from archives, or output directory when extracting.')
# Add new flag for extracting all archives in the current directory.
parser.add_argument('--all', action='store_true', help='If specified, extracts all .rpa archives in the current directory.')
parser.add_argument('-h', '--help', action='help', help='Print this help message and exit.')
parser.add_argument('-v', '--verbose', action='store_true', help='Show detailed messages during operations.')
parser.add_argument('-V', '--version', action='version', version='rpatool v0.8', help='Show version information.')
arguments = parser.parse_args()
# Determine RPA version.
if arguments.two:
version = 2
else:
version = 3
# Determine RPAv3 key.
if hasattr(arguments, 'key') and arguments.key is not None:
key = int(arguments.key, 16)
else:
key = 0xDEADBEEF
# Determine padding bytes.
if hasattr(arguments, 'padding') and arguments.padding is not None:
padding = int(arguments.padding)
else:
padding = 0
# If the --all flag is specified, ignore the ARCHIVE argument and process all .rpa files in the current directory.
if arguments.all:
archive_files = [f for f in os.listdir('.') if f.lower().endswith('.rpa')]
if not archive_files:
print('No .rpa archives found in the current directory.', file=sys.stderr)
sys.exit(0)
for archive_filename in archive_files:
print("Processing archive: {}".format(archive_filename))
try:
current_archive = RenPyArchive(archive_filename, padlength=padding, key=key, version=version, verbose=arguments.verbose)
except IOError as e:
print('Failed to open archive {}: {}'.format(archive_filename, e), file=sys.stderr)
continue
# Determine the extraction directory.
# If --outfile is provided, use it; otherwise, extract to the current directory directly.
if arguments.outfile:
outfolder = _unicode(arguments.outfile)
else:
outfolder = "."
if not os.path.exists(outfolder):
os.makedirs(outfolder)
# Extract all files from the archive.
for filename in current_archive.list():
if filename.find('=') != -1:
(outfile, filename) = filename.split('=', 2)
else:
outfile = filename
try:
contents = current_archive.read(filename)
destination = os.path.join(outfolder, outfile)
destdir = os.path.dirname(destination)
if destdir and not os.path.exists(destdir):
os.makedirs(destdir)
with open(destination, 'wb') as file_out:
file_out.write(contents)
except Exception as e:
print('Failed to extract file {} from {}: {}'.format(filename, archive_filename, e), file=sys.stderr)
sys.exit(0)
# Determine input archive/output file.
if arguments.create:
archive = None
output = _unicode(arguments.archive)
else:
archive = _unicode(arguments.archive) if arguments.archive is not None else None
if hasattr(arguments, 'outfile') and arguments.outfile is not None:
output = _unicode(arguments.outfile)
else:
if arguments.extract:
output = '.'
else:
output = _unicode(arguments.archive) if arguments.archive is not None else ''
# Normalize file arguments.
if len(arguments.files) > 0 and isinstance(arguments.files[0], list):
arguments.files = arguments.files[0]
try:
if archive is None:
raise ValueError("No input archive specified.")
archive = RenPyArchive(archive, padlength=padding, key=key, version=version, verbose=arguments.verbose)
except Exception as e:
print('Failed to open archive {} for reading: {}'.format(archive, e), file=sys.stderr)
sys.exit(1)
if arguments.create or arguments.append:
def add_file(filename):
if filename.find('=') != -1:
(outfile, filename) = filename.split('=', 2)
else:
outfile = filename
if os.path.isdir(filename):
for file in os.listdir(filename):
add_file(outfile + os.sep + file + '=' + filename + os.sep + file)
else:
try:
with open(filename, 'rb') as file_in:
archive.add(outfile, file_in.read())
except Exception as e:
print('Failed to add file {} to archive: {}'.format(filename, e), file=sys.stderr)
for filename in arguments.files:
add_file(_unicode(filename))
archive.version = version
try:
archive.save(output)
except Exception as e:
print('Failed to save archive: {}'.format(e), file=sys.stderr)
elif arguments.delete:
for filename in arguments.files:
try:
archive.remove(filename)
except Exception as e:
print('Failed to delete file {} from archive: {}'.format(filename, e), file=sys.stderr)
archive.version = version
try:
archive.save(output)
except Exception as e:
print('Failed to save archive: {}'.format(e), file=sys.stderr)
elif arguments.extract:
# If specific files are provided, extract them; otherwise, extract all files.
if len(arguments.files) > 0:
files = arguments.files
else:
files = archive.list()
if not os.path.exists(output):
os.makedirs(output)
for filename in files:
if filename.find('=') != -1:
(outfile, filename) = filename.split('=', 2)
else:
outfile = filename
try:
contents = archive.read(filename)
out_path = os.path.join(output, outfile)
if os.path.dirname(out_path) and not os.path.exists(os.path.dirname(out_path)):
os.makedirs(os.path.dirname(out_path))
with open(out_path, 'wb') as file_out:
file_out.write(contents)
except Exception as e:
print('Failed to extract file {} from archive: {}'.format(filename, e), file=sys.stderr)
elif arguments.list:
file_list = archive.list()
file_list.sort()
for file in file_list:
print(file)
else:
print('No operation specified :(')
print('Use {} --help for usage details.'.format(sys.argv[0]))