mirror of
https://github.com/GNS3/gns3-server
synced 2024-12-28 01:38:08 +00:00
65 lines
2.1 KiB
Python
65 lines
2.1 KiB
Python
import zipfile
|
|
import zstandard as zstd
|
|
import inspect
|
|
|
|
from ._patcher import patch
|
|
|
|
|
|
zipfile.ZIP_ZSTANDARD = 93
|
|
zipfile.compressor_names[zipfile.ZIP_ZSTANDARD] = 'zstandard'
|
|
zipfile.ZSTANDARD_VERSION = 20
|
|
|
|
|
|
@patch(zipfile, '_check_compression')
|
|
def zstd_check_compression(compression):
|
|
if compression == zipfile.ZIP_ZSTANDARD:
|
|
pass
|
|
else:
|
|
patch.originals['_check_compression'](compression)
|
|
|
|
|
|
class ZstdDecompressObjWrapper:
|
|
def __init__(self, o):
|
|
self.o = o
|
|
|
|
def __getattr__(self, attr):
|
|
if attr == 'eof':
|
|
return False
|
|
return getattr(self.o, attr)
|
|
|
|
|
|
@patch(zipfile, '_get_decompressor')
|
|
def zstd_get_decompressor(compress_type):
|
|
if compress_type == zipfile.ZIP_ZSTANDARD:
|
|
return ZstdDecompressObjWrapper(zstd.ZstdDecompressor(max_window_size=2147483648).decompressobj())
|
|
else:
|
|
return patch.originals['_get_decompressor'](compress_type)
|
|
|
|
|
|
if 'compresslevel' in inspect.signature(zipfile._get_compressor).parameters:
|
|
@patch(zipfile, '_get_compressor')
|
|
def zstd_get_compressor(compress_type, compresslevel=None):
|
|
if compress_type == zipfile.ZIP_ZSTANDARD:
|
|
if compresslevel is None:
|
|
compresslevel = 3
|
|
return zstd.ZstdCompressor(level=compresslevel, threads=12).compressobj()
|
|
else:
|
|
return patch.originals['_get_compressor'](compress_type, compresslevel=compresslevel)
|
|
else:
|
|
@patch(zipfile, '_get_compressor')
|
|
def zstd_get_compressor(compress_type, compresslevel=None):
|
|
if compress_type == zipfile.ZIP_ZSTANDARD:
|
|
if compresslevel is None:
|
|
compresslevel = 3
|
|
return zstd.ZstdCompressor(level=compresslevel, threads=12).compressobj()
|
|
else:
|
|
return patch.originals['_get_compressor'](compress_type)
|
|
|
|
|
|
@patch(zipfile.ZipInfo, 'FileHeader')
|
|
def zstd_FileHeader(self, zip64=None):
|
|
if self.compress_type == zipfile.ZIP_ZSTANDARD:
|
|
self.create_version = max(self.create_version, zipfile.ZSTANDARD_VERSION)
|
|
self.extract_version = max(self.extract_version, zipfile.ZSTANDARD_VERSION)
|
|
return patch.originals['FileHeader'](self, zip64=zip64)
|