Multiple changes

scripts/.bin/nodistractions.sh

@@ -0,0 +1,49 @@
+#!/bin/sh
+
+# If you want to allow some websites/IPs to still work
+# after adding the filters, just add specific rules to
+# iptables to allow it. For instance:
+#
+# sudo iptables --insert OUTPUT --protocol tcp --destination 138.4.0.0/16 --jump ACCEPT 
+#
+# iptables rules are interpreted top to bottom.
+# --append adds rules to the end of the file
+# --insert adds rules to the top of the file
+# Hence, you can either append the rule before running
+# the script, or insert the rule so it takes precedence.
+ 
+export SUDO_ASKPASS=/usr/lib/ssh/ssh-askpass
+CMD="sudo -A iptables"
+RULE="OUTPUT --protocol tcp --jump DROP --dport"
+
+stop_filter() {
+    $CMD --delete $RULE 80
+    $CMD --delete $RULE 443
+}
+
+filter() {
+    stop_filter >&2 /dev/null # Avoid re-adding
+    $CMD --append $RULE 80
+    $CMD --append $RULE 443
+}
+
+
+help() {
+    echo "Usage: $0 on|off"
+}
+
+if [ "$#" -ne 1 ]; then
+    filter
+else
+    case "$1" in
+        "on")
+            filter
+            ;;
+        "off")
+            zenity --question --text="Are you sure you want to let distractions in?" && stop_filter
+            ;;
+        *)
+            help
+    esac
+fi
+