/usr/share/caldavtester/verifiers/header.py is in caldav-tester 7.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright (c) 2006-2015 Apple Inc. All rights reserved.
#
# 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.
##
"""
Verifier that checks the response headers for a specific value.
"""
import re
class Verifier(object):
def verify(self, manager, uri, response, respdata, args): #@UnusedVariable
# Split into header/value tuples
testheader = args.get("header", [])[:]
for i in range(len(testheader)):
p = testheader[i]
present = "single"
if p[0] == "!":
p = p[1:]
present = "none"
if p[0] == "*":
p = p[1:]
present = "multiple"
if p.find("$") != -1:
testheader[i] = (p.split("$", 1)[0], p.split("$", 1)[1], present, True,)
elif p.find("!") != -1:
testheader[i] = (p.split("!", 1)[0], p.split("!", 1)[1], present, False,)
else:
testheader[i] = (p, None, present, True,)
result = True
resulttxt = ""
for hdrname, hdrvalue, presence, matchvalue in testheader:
hdrs = response.msg.getheaders(hdrname)
if (hdrs is None or (len(hdrs) == 0)):
if presence != "none":
result = False
if len(resulttxt):
resulttxt += "\n"
resulttxt += " Missing Response Header: %s" % (hdrname,)
continue
else:
continue
if (hdrs is not None) and (len(hdrs) != 0) and (presence == "none"):
result = False
if len(resulttxt):
resulttxt += "\n"
resulttxt += " Response Header was present one or more times: %s" % (hdrname,)
continue
if (len(hdrs) != 1) and (presence == "single"):
result = False
if len(resulttxt):
resulttxt += "\n"
resulttxt += " Multiple Response Headers: %s" % (hdrname,)
continue
if (hdrvalue is not None):
hdrvalue = hdrvalue.replace(" ", "")
matched = False
for hdr in hdrs:
hdr = hdr.replace(" ", "")
if (re.match(hdrvalue, hdr) is not None):
matched = True
break
if matchvalue and not matched or not matchvalue and matched:
result = False
if len(resulttxt):
resulttxt += "\n"
resulttxt += " Wrong Response Header Value: %s: %s" % (hdrname, str(hdrs))
return result, resulttxt
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