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cqclr
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cqclr
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#!/bin/sh
# CQ Unix Toolkit
# Copyright (C) 2013 Cognifide Limited
#
# 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.
_usage()
{
cat <<EOT
Usage: $(basename "${0}") [OPTION...]
Clear cache for specified dispatcher (-i option). By default clear the whole
cache / node or specified node provided by -r option. To match specific
dispatcher flush cache server configuration use -v domain option to request
with virtual host/domain.
Please note that by default when you specify individual path and it is deleted,
special .stat files are touched according to /statfileslevel directive so the
whole subtree specified by the level of the deepest .stat file location is
effectively invalidated (but not deleted immediately).
Examples:
cqclr -i http://192.168.1.50 # Clear the whole dispatcher cache for dispatcher
# available locally in LAN
cqclr -i http://192.168.1.50 # Clear the whole dispatcher cache for dispatcher
-v production.flush.local # available locally in LAN requesting to
# virtual host production.flush.local
cqclr -i http://192.168.1.50 # Clear only designs cache for dispatcher
-v production.flush.local # available locally in LAN requesting to
-r /etc/design # virtual host production.flush.local
Options:
-u use specified username for connection
-p use provided password for authentication
-i use specified dispatcher URL to flush
-v define HTTP request to other domain than provided in
URL (for virtual hosting purposes)
-r clears only specified path and all its descendants
(by default the whole cache so: '/' node)
EOT
exit 1
}
CWD=$(dirname "${0}")
API="${CWD}/cqapi"
"${API}" -P >/dev/null
if [ ${?} -ne 0 ]
then
echo "Fatal: cannot find or test cqapi command" >&2
exit 1
fi
CURLBIN=$("${API}" -c)
if [ ${?} -ne 0 ]
then
echo "Fatal: cannot find curl" >&2
exit 1
fi
# API common options
cmdapi=$("${API}" -P "${@}")
username=$(echo "${cmdapi}" | cut -f1)
password=$(echo "${cmdapi}" | cut -f2)
instance=$(echo "${cmdapi}" | cut -f3)
passed=$(echo "${cmdapi}" | cut -f4)
apigetopts=$(echo "${cmdapi}" | cut -f5)
path="/"
vhost=""
while getopts ":r:v:${apigetopts}" opt
do
case ${opt} in
r)
path="${OPTARG}";;
v)
vhost="${OPTARG}";;
\?)
echo "Invalid option: -${OPTARG}" >&2; _usage;;
:)
echo "Option -${OPTARG} requires an argument." >&2; _usage;;
esac
done
shift $((OPTIND-1))
if [ ${#} -ge 1 -o "${passed}" -eq 0 ]
then
_usage
fi
URL="${instance}/dispatcher/invalidate.cache"
REFERER=${URL}
AUTH="${username}:${password}"
REFERERHEADER="Referer: ${REFERER}"
VHOSTHEADER=""
echo "Clearing dispatcher cache:"
echo " path: ${path}"
if [ "${vhost}" != "" ]
then
VHOSTHEADER="Host: ${vhost}"
echo " requested host: ${vhost}"
fi
echo " connection URL: ${instance}"
echo ""
STATUS=$(${CURLBIN} -s -X POST \
--output /dev/null \
--write-out %{http_code} \
-u "${AUTH}" \
-H "CQ-Action: Delete" \
-H "CQ-Handle: ${path}" \
-H "Content-Length: 0" \
-H "${VHOSTHEADER}" \
-H "${REFERERHEADER}" \
"${URL}")
EXITCODE=${?}
"${API}" -C ${EXITCODE}
if [ ${EXITCODE} -ne 0 ]
then
exit ${EXITCODE}
fi
"${API}" -H "${STATUS}"
EXITCODE=${?}
if [ ${EXITCODE} -ne 0 ]
then
exit ${EXITCODE}
fi
echo "Clearing cache successful."