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39 lines
1.2 KiB
Python
39 lines
1.2 KiB
Python
import gzip
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import struct
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from . import TLObject
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class GzipPacked(TLObject):
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constructor_id = 0x3072cfa1
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def __init__(self, data):
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super().__init__()
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self.data = data
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@staticmethod
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def gzip_if_smaller(request):
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"""Calls request.to_bytes(), and based on a certain threshold,
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optionally gzips the resulting data. If the gzipped data is
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smaller than the original byte array, this is returned instead.
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Note that this only applies to content related requests.
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"""
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data = request.to_bytes()
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# TODO This threshold could be configurable
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if request.content_related and len(data) > 512:
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gzipped = GzipPacked(data).to_bytes()
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return gzipped if len(gzipped) < len(data) else data
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else:
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return data
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def to_bytes(self):
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# TODO Maybe compress level could be an option
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return struct.pack('<I', GzipPacked.constructor_id) + \
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TLObject.serialize_bytes(gzip.compress(self.data))
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@staticmethod
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def read(reader):
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reader.read_int(signed=False) # code
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return gzip.decompress(reader.tgread_bytes())
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