61 lines
1.7 KiB
Python
61 lines
1.7 KiB
Python
"""Includes private helpers for the Response class.
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Copyright 2013 by Rackspace Hosting, Inc.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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"""
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def header_property(name, doc, transform=lambda v: v):
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"""Creates a header getter/setter.
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Args:
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name: Header name, e.g., "Content-Type"
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doc: Docstring for the property
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transform: Transformation function to use when setting the
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property. The value will be passed to the function, and
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the function should return the transformed value to use
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as the value of the header (default lambda v: v)
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"""
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def fget(self):
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try:
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return self._headers[name]
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except KeyError:
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return None
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def fset(self, value):
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self._headers[name] = transform(value)
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def fdel(self):
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del self._headers[name]
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return property(fget, fset, fdel, doc)
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def format_range(value):
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"""Formats a range header tuple per the HTTP spec.
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Args:
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value: Tuple passed to req.range
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"""
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# PERF: Concatenation is faster than % string formatting as well
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# as ''.join() in this case.
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return ('bytes ' +
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str(value[0]) + '-' +
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str(value[1]) + '/' +
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str(value[2]))
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