linkhandler massively streamlined, posix sh

.scripts/linkhandler

@@ -6,32 +6,19 @@
 # if a music file or pdf, it will download,
 # otherwise it opens link in browser.
 
+# Sci-Hub's domain occasionally changes due to shutdowns:
 scihub="http://sci-hub.tw/"
 
-# List of sites that will be opened in mpv.
-vidsites="youtube.com
-	\|hooktube.com
-	\|bitchute.com
-	"
+# setsid nohup
 
-# List of academic sites whose pdfs can be dled via sci-hub.
-academic="springer.com"
-
-ext="${1##*.}"
-mpvFiles="mkv mp4 gif webm"
-fehFiles="png jpg jpeg jpe"
-wgetFiles="mp3 flac opus mp3?source=feed pdf"
-
-if echo $fehFiles | grep -w $ext > /dev/null; then
-	setsid nohup feh "$1" >/dev/null & disown
-elif echo $mpvFiles | grep -w $ext > /dev/null; then
-	setsid nohup mpv -quiet "$1" > /dev/null & disown
-elif echo $wgetFiles | grep -w $ext > /dev/null; then
-	wget "$1" >/dev/null & disown
-elif echo "$@" | grep "$vidsites">/dev/null; then
-	setsid nohup mpv -quiet "$1" > /dev/null & disown
-elif echo "$@" | grep "$academic">/dev/null; then
-	curl -sO "$(curl -s "$scihub$*" | grep -Po "(?<=location.href=').+.pdf")" & disown
-else
-	setsid nohup $BROWSER "$1" 2>/dev/null & disown
-fi
+case "$1" in
+	*mkv|*webm|*mp4|*gif|*youtube.com*|*hooktube.com*)
+		setsid mpv -quiet "$1" >/dev/null 2>&1 & ;;
+	*png|*jpg|*jpe|*jpeg)
+		setsid feh "$1" >/dev/null 2>&1 & ;;
+	*mp3|*flac|*opus|*mp3?source)
+		setsid tsp wget "$1" >/dev/null 2>&1 & ;;
+	*springer.com*)
+		setsid curl -sO "$(curl -s "$scihub$*" | grep -Po "(?<=location.href=').+.pdf")" >/dev/null 2>&1 & ;;
+	*) setsid "$BROWSER" "$1" >/dev/null 2>&1 & ;;
+esac