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import base64 |
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from urllib.parse import unquote |
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from benedict.serializers.abstract import AbstractSerializer |
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from benedict.utils import type_util |
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8
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class Base64CoreSerializer(AbstractSerializer): |
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""" |
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This class describes a base64 core serializer. |
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""" |
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def __init__(self): |
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super().__init__( |
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extensions=[ |
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"b64", |
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"base64", |
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], |
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) |
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def _fix_url_encoding_and_padding(self, s): |
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# fix urlencoded chars |
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s = unquote(s) |
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# fix padding |
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m = len(s) % 4 |
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if m != 0: |
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s += "=" * (4 - m) |
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return s |
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def decode(self, s, **kwargs): |
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value = self._fix_url_encoding_and_padding(s) |
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encoding = kwargs.pop("encoding", "utf-8") |
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if encoding: |
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value = value.encode(encoding) |
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value = base64.b64decode(value) |
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if encoding: |
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return value.decode(encoding) |
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return value |
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def encode(self, d, **kwargs): |
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value = d |
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encoding = kwargs.pop("encoding", "utf-8") |
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if encoding and type_util.is_string(value): |
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value = value.encode(encoding) |
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value = base64.b64encode(value) |
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if encoding: |
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value = value.decode(encoding) |
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return value |
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class Base64Serializer(Base64CoreSerializer): |
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def __init__(self): |
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super().__init__() |
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def _pop_options(self, options): |
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encoding = options.pop("encoding", "utf-8") |
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subformat = options.pop("subformat", None) |
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from benedict.serializers import get_serializer_by_format |
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serializer = get_serializer_by_format(subformat) |
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return (serializer, encoding) |
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def decode(self, s, **kwargs): |
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serializer, encoding = self._pop_options(kwargs) |
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value = super().decode(s, encoding=encoding) |
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if serializer: |
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value = serializer.decode(value, **kwargs) |
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return value |
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def encode(self, d, **kwargs): |
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serializer, encoding = self._pop_options(kwargs) |
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value = d |
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if serializer: |
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value = serializer.encode(value, **kwargs) |
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value = super().encode(value, encoding=encoding) |
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return value |
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fabiocaccamo /
python-benedict
