env/bin/invidious.sh
2019-12-08 18:39:16 +00:00

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#!/bin/sh
# invidious
# Written in 2019 by Leslie
# Modified in 2019 by Lucas
# CC0 1.0 Universal/Public domain - No rights reserved
#
# To the extent possible under law, the author(s) have dedicated all
# copyright and related and neighboring rights to this software to the
# public domain worldwide. This software is distributed without any
# warranty. You should have received a copy of the CC0 Public Domain
# Dedication along with this software. If not, see
# <http://creativecommons.org/publicdomain/zero/1.0/>.
usage()
{
printf "Usage: %s url\n" "${0##*/}" >&2
exit 1
}
err()
{
printf "%s: %s\n" "${0##*/}" "$*" >&2
exit 1
}
[ $# -eq 1 ] || usage
case $1 in
"https://invidio.us/watch?v="*)
;;
*) err "Not an invidio.us url."
;;
esac
video_id=
for param in $(printf "%s\n" "${1##*"?"}" | tr "&" "\n"); do
k=${param%%=*}
[ "$k" = v ] || continue
v=${param#*=}
if [ ${#v} -ne 11 ]; then
printf "%s: \"%s\": not a video ID." "${0##*/}" "$v" >&2
continue
fi
video_id=$v
break
done
[ -n "$video_id" ] || err "no video ID in URL."
dl_option=$(ftp -o - "$1" 2>/dev/null | grep -F "<option value='{" |
head -n 1 | cut -d "\"" -f 8)
printf "https://invidio.us/latest_version?id=%s&itag=%s\n" \
"$video_id" "$dl_option"