Processing a File (From a Folder Action) Through an AppleScript

Question

I have a Folder Action enabled which automatically uploads images placed in a folder to a FTP server. It works great when I'm at home on my own network, but if I'm somewhere with a firewall that prohibits connecting to my FTP server (i.e. work) or if I am not connected to the internet, the folder action will still run but my images will never get uploaded.
I've attached a screenshot of my workflow. The folder action gets the image added to the folder, copies the original to a different folder, and then scales the image down to a smaller size before uploading it. I'm using the upload workflow action from Transmit.
I figured I could use an AppleScript to check whether or not my computer can reach the ftp server and then wait until it was connected to run the rest of the workflow if it can't reach the server:
repeat with i from 1 to 86400
    try
        do shell script "ping -o ftp.examplewebsite.com"
        exit repeat
    on error
        delay 5
        if i = 86400 then error number -128
    end try
end repeat
The only problem is, I'm pretty inexperienced with AppleScript and am not really sure how or where to insert it into my workflow to get the image to "pass through" the AppleScript. Currently, whenever I include this AppleScript in my workflow, before the Upload action, for example, the image ends up not getting passed through the AppleScript and it doesn't get uploaded as a result.
Hopefully this a fairly simple question and someone can help me out, or if there's an easier way to delay running a folder action until I can connect to the server someone will let me know. I can clarify anything if necessary.

Answer 1

Good job
I just saw this…
applescript in automator - stop a workflow
It kills the workflow based on a test, so I tried this…
Here is the text if you want to copy & paste. It will fail on Apple.com & stop the workflow. Success should allow it to continue.
on run {input, parameters}
  try
  set pinged to do shell script "ping -c 3 -q  apple.com "
  if pinged is equal to 0 then
  return input
  end if
  on error
  error number -128 -- exit by user-cancel
  end try
end run
on run {input, parameters}
   display dialog "Rest of script will now continue..."
  return input
end run