ewcurl

#!/bin/sh
#
# edgeworkers-curl (ewcurl)
#

curlcmd=curl
error=0
verbose=0
account_option=
hostname=
section=papi

usage() {
    echo "Usage: "
    echo "    `basename $0` [ewcurl options] -- [curl options] [curl URL]"                 1>&2
    echo "    optons:"                                                                     1>&2
    echo "       -a     (optional) Account Switch Key for Akamai CLI command."             1>&2
    echo "       -h     Hostname for EdgeWorkers target property."                         1>&2
    echo "       -s     (optional) Section name in ~/.edgerc for Akamai CLI credential."   1>&2
    echo "                         [default value is 'papi']."                             1>&2
    echo "" 1>&2
}

opts=":a:h:s:v"
while getopts ${opts} opt
do
  case ${opt} in
    a)   
       [ "x${OPTARG}" = "x--" ] && echo "`basename $0`: Invalid argument for -${opt}: --" 1>&2 && error=3
       account_option="--accountkey ${OPTARG}"
       ;;
    h)
       [ "x${OPTARG}" = "x--" ] && echo "`basename $0`: Invalid argument: --" 1>&2 && error=3
       hostname="${OPTARG}"
       ;;
    s) 
       [ "x${OPTARG}" = "x--" ] && echo "`basename $0`: Invalid argument: --" 1>&2 && error=3
       section="${OPTARG}"
       ;;
    v)
       verbose=1
       ;;
    \?)  echo "`basename $0`: Invalid option: -${OPTARG}" 1>&2 && error=1                      ;;
    :)   echo "`basename $0`: Invalid option: -${OPTARG} requires an argument" 1>&2 && error=2 ;;
  esac
done
shift $((OPTIND-1))

[ "x${hostname}" = "x" ] && echo "`basename $0`: Insuccifient options - No hostname option." 1>&2 && error=4
[ ${error} -gt 0 ] && usage && exit ${error}

#
# Run scirpt
#

options="--section ${section} ${account_option}"
if [ "${verbose}" = "1" ]; then
echo "Akamai EdgeWorkers Hostname:    ${hostname}" 1>&2
echo "Akamai EdgeWorkers CLI options: ${options}"  1>&2
echo "Curl options: $*" 1>&2
fi

tokenfile=$HOME/.akamai-ew-trace-token
akamai_ew_trace_header="Akamai-EW-Trace"
touch ${tokenfile}

now=`date +%s`
tokenexp=`cat ${tokenfile} | grep ${hostname} | sed "s;${hostname}=;;" | sed 's;.*~exp=\([0-9]*\)~.*;\1;'`
if [ "x${tokenexp}" = "x" ] || [ "${now}" -ge "${tokenexp}" ]; then
  token=`akamai edgeworkers ${options} auth --expiry 60 ${hostname} | grep "^${akamai_ew_trace_header}"`
  if [ ! "x${token}" = "x" ]; then
    cat ${tokenfile} | grep -v "^${hostname}=" > ${tokenfile}.tmp
    echo "${hostname}=${token}" >> ${tokenfile}.tmp
    mv ${tokenfile}.tmp ${tokenfile}
  fi
fi
token=`cat ${tokenfile} | grep ${hostname} | sed "s;${hostname}=;;"`

if [ "${verbose}" = "1" ]; then
echo EW Trace AuthToken: ${token} 1>&2
fi

${curlcmd} \
    -H 'Pragma: akamai-x-cache-on, akamai-x-cache-remote-on, akamai-x-ew-debug, akamai-x-ew-debug-rp' \
    -H "${token}" \
    $*