Major overhaul. Added -j option to output stats as JSON formatted string. If run with no option, then chronometer runs as normal. Fixed calculations to match those on the web dashboard.

advanced/Scripts/chronometer.sh

@@ -1,13 +1,78 @@
 #!/usr/bin/env bash
-# Displays Pi-hole stats on the Adafruit PiTFT 2.8" touch screen
-# Set the pi user to log in automatically and run this script from /etc/profile
 # (c) 2015 by Jacob Salmela
 # This file is part of Pi-hole.
 #
 # Pi-hole is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 2 of the License, or
-# (at your option) any later version.
+# (at your opercentBlockedTodayion) any later version.
+
+
+#Functions##############################################################################################################
+piLog="/var/log/pihole.log"
+gravity="/etc/pihole/gravity.list"
+
+today=$(date "+%b %e")
+
+function CalcBlockedDomains(){
+	if [ -e "$gravity" ]; then
+		#Are we IPV6 or IPV4?
+		if [[ -n $piholeIPv6 ]];then
+			#We are IPV6
+			blockedDomainsTotal=$(wc -l /etc/pihole/gravity.list | awk '{print $1/2}')
+		else
+			#We are IPV4
+			blockedDomainsTotal=$(wc -l /etc/pihole/gravity.list | awk '{print $1}')
+		fi
+	else
+		blockedDomainsTotal="Err."
+	fi
+}
+
+function CalcQueriesToday(){
+	if [ -e "$piLog" ];then
+		queriesToday=$(cat "$piLog" | grep "$today" | awk '/query/ {print $6}' | wc -l)
+	else
+		queriesToday="Err."
+	fi
+}
+
+function CalcblockedToday(){
+	if [ -e "$piLog" ] && [ -e "$gravity" ];then
+		blockedToday=$(cat $piLog | awk '/\/etc\/pihole\/gravity.list/ && !/address/ {print $6}' | wc -l)
+	else
+		blockedToday="Err."
+	fi
+}
+
+function CalcPercentBlockedToday(){
+	if [ "$queriesToday" != "Err." ] && [ "$blockedToday" != "Err." ]; then
+		#scale 2 rounds the number down, so we'll do scale 4 and then trim the last 2 zeros
+		percentBlockedToday=$(echo "scale=4; $blockedToday/$queriesToday*100" | bc)		
+		percentBlockedToday=$(sed 's/.\{2\}$//' <<< "$percentBlockedToday")		
+	fi
+}
+
+function CheckIPv6(){
+	piholeIPv6file="/etc/pihole/.useIPv6"
+	if [[ -f $piholeIPv6file ]];then
+	    # If the file exists, then the user previously chose to use IPv6 in the automated installer
+	    piholeIPv6=$(ip -6 route get 2001:4860:4860::8888 | awk -F " " '{ for(i=1;i<=NF;i++) if ($i == "src") print $(i+1) }')
+	fi
+}
+
+function outputJSON(){
+	CalcQueriesToday
+	CalcblockedToday
+	CalcPercentBlockedToday
+	
+	CheckIPv6
+	CalcBlockedDomains
+	
+	printf '{"domains_being_blocked":"%s","dns_queries_today":"%s","ads_blocked_today":"%s","ads_percentage_today":"%s"}\n' "$blockedDomainsTotal" "$queriesToday" "$blockedToday" "$percentBlockedToday"
+}
+
+function normalChrono(){
 	for (( ; ; ))
 	do
 		clear
@@ -20,16 +85,51 @@ do
 		# Uncomment to continually read the log file and display the current domain being blocked
 		#tail -f /var/log/pihole.log | awk '/\/etc\/pihole\/gravity.list/ {if ($7 != "address" && $7 != "name" && $7 != "/etc/pihole/gravity.list") print $7; else;}'
 		
-	today=$(date "+%b %e")
+		#uncomment next 4 lines to use original query count calculation
-	todaysQueryCount=$(cat /var/log/pihole.log | grep "$today" | awk '/query/ {print $7}' | wc -l)
+		#today=$(date "+%b %e")
-	todaysQueryCountV4=$(cat /var/log/pihole.log | grep "$today" | awk '/query/ && /\[A\]/ {print $7}' | wc -l)
+		#todaysQueryCount=$(cat /var/log/pihole.log | grep "$today" | awk '/query/ {print $7}' | wc -l)
-	todaysQueryCountV6=$(cat /var/log/pihole.log | grep "$today" | awk '/query/ && /\[AAAA\]/ {print $7}' | wc -l)
+		#todaysQueryCountV4=$(cat /var/log/pihole.log | grep "$today" | awk '/query/ && /\[A\]/ {print $7}' | wc -l)
-	todaysAdsEliminated=$(cat /var/log/pihole.log | grep "$today" | awk '/\/etc\/pihole\/gravity.list/ {print $7}' | wc -l)
+		#todaysQueryCountV6=$(cat /var/log/pihole.log | grep "$today" | awk '/query/ && /\[AAAA\]/ {print $7}' | wc -l)
-	dividend=$(echo "$todaysAdsEliminated/$todaysQueryCount" | bc -l)
+				
-	fp=$(echo "$dividend*100" | bc -l)
+		
-	percentAds=$(echo ${fp:0:4})
+		CalcQueriesToday
+		CalcblockedToday
+		CalcPercentBlockedToday
+		
+		CalcBlockedDomains
+		
+		echo "Blocking:      $blockedDomainsTotal"
+		#below commented line does not add up to todaysQueryCount
+		#echo "Queries:       $todaysQueryCountV4 / $todaysQueryCountV6"
+		echo "Queries:       $queriesToday" #same total calculation as dashboard
+	  echo "Pi-holed:      $blockedToday ($percentBlockedToday%)"
 		
-	echo "Queries:       $todaysQueryCountV4 / $todaysQueryCountV6"
-	echo "Pi-holed:      $todaysAdsEliminated  ($percentAds%)"
 		sleep 5
 	done
+}
+
+function displayHelp(){
+ echo "Displays stats about your piHole!"
+    echo " "
+    echo "Usage: whitelist.sh [optional:-j]"
+    echo "Note: If no option is passed, then stats are displayed on screen, updated every 5 seconds
+    echo "  "
+    echo "Options:"
+    echo "  -j, --json		output stats as JSON formatted string"
+    echo "  -h, --help	display this help text"
+    
+    exit 1
+}
+
+if [[ $# = 0 ]]; then
+	normalChrono
+fi
+
+for var in "$@"
+do
+  case "$var" in
+    "-j" | "--json"  ) outputJSON;;
+    "-h" | "--help"  ) displayHelp;;        			
+    *                ) exit 1;;
+  esac
+done