185 lines
4.7 KiB
Bash
185 lines
4.7 KiB
Bash
#!/usr/bin/env bash
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#
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# Wrapper around SCN ( https://simplecloudnotifier.de/ )
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# ======================================================
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#
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# ./scn_send [@channel] title [content] [priority]
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#
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#
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# Call with scn_send "${title}"
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# or scn_send "${title}" ${content}"
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# or scn_send "${title}" ${content}" "${priority:0|1|2}"
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# or scn_send "@${channel} "${title}"
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# or scn_send "@${channel} "${title}" ${content}"
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# or scn_send "@${channel} "${title}" ${content}" "${priority:0|1|2}"
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#
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# content can be of format "--scnsend-read-body-from-file={path}" to read body from file
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# (this circumvents max commandline length)
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#
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################################################################################
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usage() {
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echo "Usage: "
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echo " scn_send [@channel] title [content] [priority]"
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echo ""
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}
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function cfgcol { [ -t 1 ] && [ -n "$(tput colors)" ] && [ "$(tput colors)" -ge 8 ]; }
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function rederr() { if cfgcol; then >&2 echo -e "\x1B[31m$1\x1B[0m"; else >&2 echo "$1"; fi; }
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function green() { if cfgcol; then echo -e "\x1B[32m$1\x1B[0m"; else echo "$1"; fi; }
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################################################################################
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#
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# Get env 'SCN_UID' and 'SCN_KEY' from conf file
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#
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# shellcheck source=/dev/null
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. "/etc/scn.conf"
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SCN_UID=${SCN_UID:-}
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SCN_KEY=${SCN_KEY:-}
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[ -z "${SCN_UID}" ] && { rederr "Missing config value 'SCN_UID' in /etc/scn.conf"; exit 1; }
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[ -z "${SCN_KEY}" ] && { rederr "Missing config value 'SCN_KEY' in /etc/scn.conf"; exit 1; }
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################################################################################
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args=( "$@" )
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title=""
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content=""
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channel=""
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priority=""
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usr_msg_id="$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 32)"
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sendtime="$(date +%s)"
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sender="$(hostname)"
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if command -v srvname &> /dev/null; then
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sender="$( srvname )"
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fi
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if [[ "${args[0]}" = "--" ]]; then
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# only positional args form here on (currently not handled)
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args=("${args[@]:1}")
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fi
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if [ ${#args[@]} -lt 1 ]; then
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rederr "[ERROR]: no title supplied via parameter"
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usage
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exit 1
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fi
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if [[ "${args[0]}" =~ ^@.* ]]; then
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channel="${args[0]}"
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args=("${args[@]:1}")
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channel="${channel:1}"
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fi
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if [ ${#args[@]} -lt 1 ]; then
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rederr "[ERROR]: no title supplied via parameter"
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usage
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exit 1
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fi
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title="${args[0]}"
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args=("${args[@]:1}")
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content=""
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if [ ${#args[@]} -gt 0 ]; then
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content="${args[0]}"
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args=("${args[@]:1}")
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fi
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if [ ${#args[@]} -gt 0 ]; then
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priority="${args[0]}"
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args=("${args[@]:1}")
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fi
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if [ ${#args[@]} -gt 0 ]; then
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rederr "Too many arguments to scn_send"
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usage
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exit 1
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fi
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if [[ "$content" == --scnsend-read-body-from-file=* ]]; then
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path="$( awk '{ print substr($0, 31) }' <<< "$content" )"
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content="$( cat "$path" )"
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fi
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curlparams=()
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curlparams+=( "--data-urlencode" "user_id=${SCN_UID}" )
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curlparams+=( "--data-urlencode" "key=${SCN_KEY}" )
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curlparams+=( "--data-urlencode" "title=$title" )
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curlparams+=( "--data-urlencode" "timestamp=$sendtime" )
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curlparams+=( "--data-urlencode" "msg_id=$usr_msg_id" )
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if [[ -n "$content" ]]; then
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curlparams+=("--data-urlencode" "content=$content")
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fi
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if [[ -n "$priority" ]]; then
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curlparams+=("--data-urlencode" "priority=$priority")
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fi
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if [[ -n "$channel" ]]; then
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curlparams+=("--data-urlencode" "channel=$channel")
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fi
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if [[ -n "$sender" ]]; then
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curlparams+=("--data-urlencode" "sender_name=$sender")
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fi
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while true ; do
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outf="$(mktemp)"
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curlresp=$(curl --silent \
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--output "${outf}" \
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--write-out "%{http_code}" \
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"${curlparams[@]}" \
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"https://simplecloudnotifier.de/" )
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curlout="$(cat "$outf")"
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rm "$outf"
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if [ "$curlresp" == 200 ] ; then
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green "Successfully send"
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exit 0
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fi
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if [ "$curlresp" == 400 ] ; then
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rederr "Bad request - something went wrong"
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echo "$curlout"
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echo ""
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exit 1
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fi
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if [ "$curlresp" == 401 ] ; then
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rederr "Unauthorized - wrong userid/userkey"
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exit 1
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fi
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if [ "$curlresp" == 403 ] ; then
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rederr "Quota exceeded - wait 5 min before re-try"
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sleep 300
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fi
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if [ "$curlresp" == 412 ] ; then
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rederr "Precondition Failed - No device linked"
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exit 1
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fi
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if [ "$curlresp" == 500 ] ; then
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rederr "Internal server error - waiting for better times"
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sleep 60
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fi
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# if none of the above matched we probably have no network ...
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rederr "Send failed (response code $curlresp) ... try again in 5s"
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sleep 5
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done
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