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72bec36d50
By importing from canonicaljson the simplejson module was still being used in some situations. After this change the std lib json is consistenty used throughout Synapse.
72 lines
1.9 KiB
Python
72 lines
1.9 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import json
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from frozendict import frozendict
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def freeze(o):
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if isinstance(o, dict):
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return frozendict({k: freeze(v) for k, v in o.items()})
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if isinstance(o, frozendict):
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return o
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if isinstance(o, (bytes, str)):
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return o
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try:
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return tuple(freeze(i) for i in o)
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except TypeError:
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pass
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return o
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def unfreeze(o):
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if isinstance(o, (dict, frozendict)):
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return dict({k: unfreeze(v) for k, v in o.items()})
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if isinstance(o, (bytes, str)):
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return o
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try:
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return [unfreeze(i) for i in o]
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except TypeError:
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pass
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return o
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def _handle_frozendict(obj):
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"""Helper for EventEncoder. Makes frozendicts serializable by returning
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the underlying dict
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"""
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if type(obj) is frozendict:
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# fishing the protected dict out of the object is a bit nasty,
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# but we don't really want the overhead of copying the dict.
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return obj._dict
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raise TypeError(
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"Object of type %s is not JSON serializable" % obj.__class__.__name__
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)
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# A JSONEncoder which is capable of encoding frozendicts without barfing.
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# Additionally reduce the whitespace produced by JSON encoding.
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frozendict_json_encoder = json.JSONEncoder(
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allow_nan=False, separators=(",", ":"), default=_handle_frozendict,
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)
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