Free DNS with dialogs

ConfigureFreedns.sh

@@ -1,20 +1,135 @@
 #!/bin/bash
+
 if [ "`id -u`" != "0" ]
 then
-echo "Script needs root - execute bootstrap.sh or use sudo bash installation.sh"
-echo "Cannot continue.."
+echo "Script needs root - use sudo bash ConfigureFreedns.sh"
+echo "Cannot continue."
 exit 5
 fi
 
 sudo apt-get install bind9-dnsutils -y
 
 echo
-echo "Move to use free dns instead of noip.com"
+echo "Move to use free dns instead of noip.com" - tzachi-dar
 echo
 
-read -rep "Please enter host name (for example mynightscoute.mooo.com) "$'\n'"hostname: " hostname
-read -rep "please enter direct url. Should look like https://freedns.afraid.org/dynamic/update.php?d005WVNjWkE3aDhyWkJpa1h1cFZiOUV5OjIwNzQ4NTY1 "$'\n'" direct_url: " directurl
+got_them=0
+while [ $got_them -lt 1 ]
+do
+go_back=0
+clear
+exec 3>&1
+Values=$(dialog --colors --ok-label "Submit" --form "     \Zr Developed by the xDrip team \Zn\n\n\n\
+Enter your FreeDNS userID and password." 12 50 0 "User ID:" 1 1 "$user" 1 14 25 0 "Password:" 2 1 "$pass" 2 14 25 0 2>&1 1>&3)
+response=$?
+if [ $response = 255 ] || [ $response = 1 ] # cancled or escaped
+then
+clear
+exit 5
+fi
+
+exec 3>&-
+user=$(echo "$Values" | sed -n 1p)
+pass=$(echo "$Values" | sed -n 2p)
+
+if [ "$user" = "" ] || [ "$pass" = "" ] #  At least one parameter is blank. 
+then
+  go_back=1
+  clear
+  dialog --colors --msgbox "     \Zr Developed by the xDrip team \Zn\n\n\
+  You need to enter both userID and password.  Try again."  8 50
+fi
+clear
+
+if [ $go_back -lt 1 ] # if 7
+then
+  arg1="https://freedns.afraid.org/api/?action=getdyndns&v=2&sha="
+  arg2=$(echo -n "$user|$pass" | sha1sum | awk '{print $1;}')
+  arg="$arg1$arg2"
+
+  wget -O /tmp/hosts "$arg"
+if [ ! "`grep 'Could not authenticate' /tmp/hosts`" = "" ] # Failed to log in
+then
+  dialog --colors --msgbox "     \Zr Developed by the xDrip team \Zn\n\n\n\
+  Failed to authenticate.  Try again."  8 50
+  go_back=1
+fi
+
+if [ $go_back -lt 1 ] # if 6
+then
+  Lines=$(awk 'END{print NR}' /tmp/hosts)
+  if [ $Lines -eq 0 ] # No hostnames # if 5
+  then
+    dialog --colors --msgbox "     \Zr Developed by the xDrip team \Zn\n\n\
+    No subdomains found.  Ensure you have one in your Free DNS account, and try again."  9 50
+    go_back=1
+
+  elif [ $Lines -gt 1 ] # More than one hostname
+  then
+    clear
+    exec 3>&1
+    subvalue=$(dialog --colors --ok-label "Submit" --form "     \Zr Developed by the xDrip team \Zn\n\n\n\
+    You have more than one subdomain.  Enter the subdomain you want to use. \n\
+    It should look like mine.strangled.net"  12 50 0 "Subdomain:" 1 1 "$subd" 1 14 25 0 2>&1 1>&3)
+    response2=$?
+    if [ $response2 = 255 ] || [ $response2 = 1 ] # canceled or escaped
+    then
+      go_back=1
+    fi
+
+    exec 3>&-
+    subd=$(echo "$subvalue" | sed -n 1p)
+    if [ $go_back -lt 1 ] # if 4
+    then
+      if [ "$subd" = "" ] # Nothing entered
+      then
+        go_back=1
+        clear
+        dialog --colors --msgbox "     \Zr Developed by the xDrip team \Zn\n\n\n\
+        You need to enter a subdomain.  Try again."  8 50
+      fi
+
+      if [ $go_back -lt 1 ] # if 3
+      then
+        grep $subd /tmp/hosts > /tmp/FullLine # Find the lines that match and put them in FullLine.
+        if [ ! -s /tmp/FullLine ] # Not found
+        then
+          go_back=1
+          dialog --colors --msgbox "     \Zr Developed by the xDrip team \Zn\n\n\n\
+          The subdomain you entered is not one of the ones we found.  Try again." 9 50
+        fi
+        if [ $go_back -lt 1 ]  # if 2
+        then
+        Lines2=$(wc -l < /tmp/FullLine)
+        if [ $Lines2 -gt 1 ] # More than one found  if 1
+        then
+          go_back=1
+          dialog --colors --msgbox "     \Zr Developed by the xDrip team \Zn\n\n\n\
+          The value you entered matches more than one of your subdomains.  Try again and enter a unique value." 11 50
+        else
+          FLine=$(</tmp/FullLine)
+          got_them=1 # We have the hostname and direct URL
+        fi # fi 1
+
+      fi # fi 2
+      fi # fi 3
+    fi # fi 4
+  else
+    cp /tmp/hosts /tmp/FullLine
+    FLine=$(</tmp/FullLine)
+    got_them=1 # We have the hostname and direct URL
+  fi # fi 5
+
+fi # fi 6
+fi # fi 7
+
+done
+clear
 
+IFS='|'
+read -a split <<< $FLine
+hostname=${split[0]}
+directurl=${split[2]}
 
 #create a file to store the data for the startup script.
 cat> /etc/free-dns.sh<<EOF
@@ -43,4 +158,5 @@ while : ; do
 done
 
 #Fix the certificate using the new host name.
-sudo certbot --nginx -d "$hostname" --redirect 
+sudo certbot --nginx -d "$hostname" --redirect 
+