sci-hub handler added for academic sites

.scripts/linkhandler

@@ -6,11 +6,17 @@
 # if a music file or pdf, it will download,
 # otherwise it opens link in browser.
 
+scihub="http://sci-hub.tw/"
+
 # List of sites that will be opened in mpv.
 vidsites="youtube.com
 	\|hooktube.com
 	\|bitchute.com
 	"
+
+# 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"
@@ -24,6 +30,8 @@ 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 location.href | grep -o http.*pdf) & disown
 else
 	setsid nohup $BROWSER "$1" 2>/dev/null & disown
 fi