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89 lines
2.1 KiB
Python
89 lines
2.1 KiB
Python
from collections import OrderedDict
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from multidict import MultiDict, CIMultiDict
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class BaseMultiDict(MultiDict):
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"""
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Base class for all MultiDicts.
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"""
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class HTTPHeadersDict(CIMultiDict, BaseMultiDict):
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"""
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Headers are case-insensitive and multiple values are supported
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through the `add()` API.
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"""
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def add(self, key, value):
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"""
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Add or update a new header.
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If the given `value` is `None`, then all the previous
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values will be overwritten and the value will be set
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to `None`.
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"""
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if value is None:
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self[key] = value
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return None
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# If the previous value for the given header is `None`
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# then discard it since we are explicitly giving a new
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# value for it.
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if key in self and self.getone(key) is None:
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self.popone(key)
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super().add(key, value)
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class RequestJSONDataDict(OrderedDict):
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pass
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class MultiValueOrderedDict(OrderedDict):
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"""Multi-value dict for URL parameters and form data."""
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def __setitem__(self, key, value):
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"""
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If `key` is assigned more than once, `self[key]` holds a
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`list` of all the values.
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This allows having multiple fields with the same name in form
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data and URL params.
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"""
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assert not isinstance(value, list)
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if key not in self:
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super().__setitem__(key, value)
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else:
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if not isinstance(self[key], list):
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super().__setitem__(key, [self[key]])
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self[key].append(value)
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def items(self):
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for key, values in super().items():
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if not isinstance(values, list):
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values = [values]
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for value in values:
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yield key, value
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class RequestQueryParamsDict(MultiValueOrderedDict):
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pass
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class RequestDataDict(MultiValueOrderedDict):
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pass
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class MultipartRequestDataDict(MultiValueOrderedDict):
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pass
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class RequestFilesDict(RequestDataDict):
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pass
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class NestedJSONArray(list):
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"""Denotes a top-level JSON array."""
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