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# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from six.moves import urllib
def safe_quote(s):
"""URL-encode strings that are not already URL-encoded."""
return urllib.parse.quote(s) if s == urllib.parse.unquote(s) else s
class MiniResp(object):
def __init__(self, error_message, env, headers=[]):
# The HEAD method is unique: it must never return a body, even if
# it reports an error (RFC-2616 clause 9.4). We relieve callers
# from varying the error responses depending on the method.
if env['REQUEST_METHOD'] == 'HEAD':
self.body = ['']
else:
self.body = [error_message.encode()]
self.headers = list(headers)
self.headers.append(('Content-type', 'text/plain'))
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