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Update BundleFile.py #345

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35f6152
Update BundleFile.py
AniccaY Sep 14, 2025
32d4c1e
Update BundleFile.py
AniccaY Sep 18, 2025
12c252b
Update BundleFile.py
AniccaY Sep 18, 2025
1f1f7d4
Update BundleFile.py
AniccaY Sep 18, 2025
055af9f
Update BundleFile.py
AniccaY Sep 18, 2025
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19 changes: 13 additions & 6 deletions UnityPy/files/BundleFile.py
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Original file line number Diff line number Diff line change
Expand Up @@ -502,14 +502,21 @@ def decompress_data(
The decompressed data."""
comp_flag = CompressionFlags(flags & ArchiveFlags.CompressionTypeMask)

if self.decryptor is not None and flags & 0x100:
compressed_data = self.decryptor.decrypt_block(compressed_data, index)
if self.decryptor is not None and comp_flag != CompressionFlags.NONE and flags & 0x100:
de_compressed_data = self.decryptor.decrypt_block(compressed_data, index)
else:
de_compressed_data = compressed_data

if comp_flag in CompressionHelper.DECOMPRESSION_MAP:
return cast(
bytes,
CompressionHelper.DECOMPRESSION_MAP[comp_flag](compressed_data, uncompressed_size),
)
try:
return cast(
bytes,
CompressionHelper.DECOMPRESSION_MAP[comp_flag](de_compressed_data, uncompressed_size),
)
except:
return cast(
bytes,
CompressionHelper.DECOMPRESSION_MAP[comp_flag](compressed_data, uncompressed_size),)
else:
raise ValueError(f"Unknown compression! flag: {flags}, compression flag: {comp_flag.value}")

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