basic_install: Use a varibale for the pihole dashboard dir

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>

automated install/basic-install.sh

@@ -62,6 +62,7 @@ PI_HOLE_FILES=(chronometer list piholeDebug piholeLogFlush setupLCD update versi
 # This directory is where the Pi-hole scripts will be installed
 PI_HOLE_INSTALL_DIR="/opt/pihole"
 PI_HOLE_CONFIG_DIR="/etc/pihole"
+PI_HOLE_BLOCKPAGE_DIR="/var/www/html/pihole"
 useUpdateVars=false
 
 adlistFile="/etc/pihole/adlists.list"
@@ -1387,7 +1388,7 @@ installConfigs() {
         # Make sure the external.conf file exists, as lighttpd v1.4.50 crashes without it
         touch /etc/lighttpd/external.conf
         # if there is a custom block page in the html/pihole directory, replace 404 handler in lighttpd config
-        if [[ -f "/var/www/html/pihole/custom.php" ]]; then
+        if [[ -f "${PI_HOLE_BLOCKPAGE_DIR}/custom.php" ]]; then
             sed -i 's/^\(server\.error-handler-404\s*=\s*\).*$/\1"pihole\/custom\.php"/' /etc/lighttpd/lighttpd.conf
         fi
         # Make the directories if they do not exist and set the owners
@@ -1653,13 +1654,13 @@ installPiholeWeb() {
     local str="Creating directory for blocking page, and copying files"
     printf "  %b %s..." "${INFO}" "${str}"
     # Install the directory
-    install -d /var/www/html/pihole
+    install -d ${PI_HOLE_BLOCKPAGE_DIR}
     # and the blockpage
-    install -D ${PI_HOLE_LOCAL_REPO}/advanced/{index,blockingpage}.* /var/www/html/pihole/
+    install -D ${PI_HOLE_LOCAL_REPO}/advanced/{index,blockingpage}.* ${PI_HOLE_BLOCKPAGE_DIR}/
 
     # Remove superseded file
-    if [[ -e "/var/www/html/pihole/index.js" ]]; then
-        rm "/var/www/html/pihole/index.js"
+    if [[ -e "${PI_HOLE_BLOCKPAGE_DIR}/index.js" ]]; then
+        rm "${PI_HOLE_BLOCKPAGE_DIR}/index.js"
     fi
 
     printf "%b  %b %s\\n" "${OVER}" "${TICK}" "${str}"