83 lines
2.3 KiB
Bash
Executable File
83 lines
2.3 KiB
Bash
Executable File
#!/bin/sh
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set -euf
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NL='
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'
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BN="${0##*/}"
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# note: use setsid when calling this with exec
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# e.g. if you make this a void user-service, do
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# exec setsid twitch-notify <channel list>
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errecho() { echo "$*" >&2 ; }
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fail() { errecho "error: $BN: $*"; exit 1; }
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innerclean() {
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[ -f "${1:-}" ] && rm -f "$1"
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[ -f "${IMG:-}" ] && rm -f "$IMG"
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}
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clean() {
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trap 'exit' INT HUP TERM EXIT
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[ -f "${HTML:-}" ] && rm -f "$HTML"
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[ -f "${IMG:-}" ] && rm -f "$IMG"
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[ -d "${DIR:-}" ] && rm -rf "$DIR"
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kill 0
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}
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# with the sleep 0.5, 2 tries gives like 99.9% accuracy
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check() {
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tmphtml="$2"
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max_tries=2
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trap 'innerclean "$tmphtml"' INT HUP TERM EXIT
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curl --connect-timeout 10 -s -o "$2" -L "https://twitch.tv/$1"
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if [ -n "$(pup 'script[type="application/ld+json"]' < "$2")" ]; then
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if [ ! -f "$DIR/$1" ]; then
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touch "$DIR/$1"
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IMG="$(mktemp -t "twitch-notify-img.XXXX")"
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curl --connect-timeout 10 -s -o "$IMG" -L "$(pup 'meta[property="og:image"]' 'attr{content}' < "$2")"
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TITLE="$(pup 'script[type="application/ld+json"] text{}' < "$2" | jq -r '.[0].description')"
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CODE="$(notify-send -A "watch" -A "copy" -t 10000 -u normal -i "$IMG" "$1 is online!$NL$NL\"$TITLE\"")"
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case "${CODE:-999}" in
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0) xdg-open "https://twitch.tv/$1" ;;
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1) printf '%s' "https://twitch.tv/$1" | xclip -sel clipboard ;;
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*) : ;;
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esac
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rm -f "$IMG"
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fi
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elif [ "$i" -lt "$max_tries" ]; then
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i=$((i + 1))
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sleep 0.5
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check "$1" "$2"
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else
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[ -f "$DIR/$1" ] && rm "$DIR/$1"
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echo "$1 is most likely offline or doesn't exist."
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fi
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[ -f "$2" ] && rm -f "$2"
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}
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# janky way to do this but fuck it. easiest one that doesn't get race conditioned
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# if a file with their name exists in DIR, they're online
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DIR="${XDG_RUNTIME_DIR:-"${TMPDIR:-/tmp}"}/twitch-notify-dir-$USER"
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while getopts :t:l OPT; do
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case "$OPT" in
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t) SLEEP_INTERVAL="$OPTARG" ;; # in seconds, default 180
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l) [ -d "$DIR" ] && printf 'ONLINE CHANNELS:\n' && ls -w 1 "$DIR"; exit 0 ;;
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*) fail "unknown option: -$OPTARG" ;;
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esac
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done
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shift "$((OPTIND - 1))"
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# this mkdir should prevent any "someone's trying to override this" type beats
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mkdir -m 700 -- "$DIR" || fail "$DIR already exists! remove it if no daemon is running"
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trap 'clean' INT HUP TERM EXIT
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while
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for name; do
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i=0
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HTML="$(mktemp -t "twitch-notify-html.XXXX")"
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check "$name" "$HTML" &
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done
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do
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sleep "${SLEEP_INTERVAL:-60}"
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done &
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wait
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