87 lines
2.6 KiB
Plaintext
87 lines
2.6 KiB
Plaintext
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# Copyright 2004-2022 Tom Rothamel <pytom@bishoujo.us>
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#
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# Permission is hereby granted, free of charge, to any person
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# obtaining a copy of this software and associated documentation files
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# (the "Software"), to deal in the Software without restriction,
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# including without limitation the rights to use, copy, modify, merge,
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# publish, distribute, sublicense, and/or sell copies of the Software,
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# and to permit persons to whom the Software is furnished to do so,
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# subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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# Ren'Py archiver. This builds a Ren'Py archive file, and the
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# associated index file. These files are really easy to
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# reverse-engineer, but are probably better than nothing.
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init python in archiver:
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import sys
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import random
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import glob
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import zlib
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from pickle import dumps, HIGHEST_PROTOCOL
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class Archive(object):
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"""
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Adds files from disk to a rpa archive.
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"""
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def __init__(self, filename):
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# The archive file.
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self.f = open(filename, "wb")
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# The index to the file.
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self.index = _dict()
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# A fixed key minimizes difference between archive versions.
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self.key = 0x42424242
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padding = b"RPA-3.0 XXXXXXXXXXXXXXXX XXXXXXXX\n"
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self.f.write(padding)
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def add(self, name, path):
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"""
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Adds a file to the archive.
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"""
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self.index[name] = _list()
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with open(path, "rb") as df:
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data = df.read()
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dlen = len(data)
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# Pad.
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padding = b"Made with Ren'Py."
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self.f.write(padding)
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offset = self.f.tell()
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self.f.write(data)
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self.index[name].append((offset ^ self.key, dlen ^ self.key, b""))
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def close(self):
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indexoff = self.f.tell()
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self.f.write(zlib.compress(dumps(self.index, HIGHEST_PROTOCOL)))
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self.f.seek(0)
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self.f.write(b"RPA-3.0 %016x %08x\n" % (indexoff, self.key))
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self.f.close()
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