Access Telldus API using curl

tdcurl.sh

#!/bin/bash

[[ "${1^^}" == "GET" || "${1^^}" == "POST" ]] && [[ "${2}" =~ ^/.*$ ]] || exit 2

urlencode () {
  [[ -n "${1}" ]] && echo -n "${1}" | perl -p -e 's/([^A-Za-z0-9-._~])/sprintf("%%%02X", ord($1))/seg'
}

#oauth1 vars
consumer_key="..."
consumer_secret="..."
token="..."
token_secret="..."
signature_method="HMAC-SHA1"
t=$(date '+%s.%N')
timestamp="${t%%.*}"
nonce=$(md5sum <<< "$RANDOM-${t}" | cut -d ' ' -f 1)

request_method="${1^^}"; shift 1
uri="${1}"; shift 1

data=""
[[ ${#} -eq 0 ]] || {
  if [[ "${request_method}" = "GET" || "${request_method}" = "DELETE" ]]; then
    [[ ${#} -eq 1 ]] || exit 252
    data+="${1}"
  else
    [[ ${#} -eq 1 ]] && jq 'empty' <<< "${1}" || exit 252
    data=$(jq -r <<< "${1}" | sed -E 's@\.0+(,|$)@\1@' | jq -c -r '.')
  fi
  shift ${#}
}

url="https://api.telldus.com/${uri##/}"; encoded_url=$(urlencode "${url}")
encoded_oauth_sequence=$(urlencode "oauth_consumer_key=${consumer_key}&oauth_nonce=${nonce}&oauth_signature_method=${signature_method}&oauth_timestamp=${timestamp}&oauth_token=${token}&oauth_version=1.0")
[[ -z "${data}" ]] && encoded_data="" || encoded_data=$(urlencode "${data}&")
signature=$(echo -n "${request_method}&${encoded_url}&${encoded_data}${encoded_oauth_sequence}" | openssl dgst -sha1 -hmac "${consumer_secret}&${token_secret}" -binary | base64)
encoded_signature=$(urlencode "${signature}")
[[ -z "${data}" ]] || url+="?${data}"

request_url=()
if [[ "${request_method}" != "GET" || -n "${data}" ]]; then request_url+=('-X' "${request_method}"); fi
request_url+=("${url}")

curl -s "${request_url[@]}" \
  -H "Authorization: OAuth oauth_nonce=\"${nonce}\", oauth_timestamp=\"${timestamp}\", oauth_version=\"1.0\", oauth_signature_method=\"${signature_method}\", oauth_consumer_key=\"${consumer_key}\", oauth_token=\"${token}\", oauth_signature=\"${encoded_signature}\"" \
  -H 'Content-Type: application/json' \
  -H 'cache-control: no-cache'