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#!/bin/sh
# author jjm2473
# the script will be excuted when `argon.@global[0].bing_background == '1'`
# defaults to 'bing' to be compatible with old config
WEB_PIC_SRC=$(uci -q get argon.@global[0].online_wallpaper || echo 'bing')
CACHE=/var/run/argon_${WEB_PIC_SRC}.url
WRLOCK=/var/lock/argon_${WEB_PIC_SRC}.lock
fetch_pic_url() {
case $WEB_PIC_SRC in
bing)
local picpath=$(curl -fks --max-time 3 \
"https://www.bing.com/HPImageArchive.aspx?format=js&n=1" |
jsonfilter -qe '@.images[0].url')
[ -n "${picpath}" ] && echo "//www.bing.com${picpath}"
;;
unsplash)
curl -fks --max-time 3 \
"https://source.unsplash.com/1920x1080/daily?wallpapers" |
sed -E 's#^.*href="([^?]+)\?.*$#\1?fm=jpg\&fit=crop\&w=1920\&h=1080#'
;;
unsplash_*)
local collection_id=${WEB_PIC_SRC#unsplash_}
curl -fks --max-time 3 \
"https://source.unsplash.com/collection/${collection_id}/1920x1080" |
sed -E 's#^.*href="([^?]+)\?.*$#\1?fm=jpg\&fit=crop\&w=1920\&h=1080#'
;;
wallhaven)
curl -fks --max-time 3 \
"https://wallhaven.cc/api/v1/search?resolutions=1920x1080&sorting=random" |
jsonfilter -qe '@.data[0].path'
;;
esac
}
try_update() {
local lock="$WRLOCK"
exec 200>$lock
if flock -n 200 >/dev/null 2>&1; then
local picurl=$(fetch_pic_url)
if [ -n "$picurl" ]; then
echo "${picurl}" | tee "$CACHE"
else
if [ -s "$CACHE" ]; then
cat "$CACHE"
else
touch "$CACHE"
fi
fi
flock -u 200 >/dev/null 2>&1
elif [ -s "$CACHE" ]; then
cat "$CACHE"
fi
}
get_url() {
if [ -f "$CACHE" ]; then
local idle_t=$(($(date '+%s') - $(date -r "$CACHE" '+%s' 2>/dev/null || echo '0')))
if [ -s "$CACHE" ]; then
if [ $idle_t -le 43200 ]; then
cat "$CACHE"
return
fi
else
if [ $idle_t -le 120 ]; then
return
fi
fi
fi
try_update
}
get_url