Question

I’m writing a PHP process that will run on a Unix machine that will need to monitor a remote SMB server and detect new files that are being uploaded to that box via FTP. It’s unlikely I’ll be able to

It will need to detect:

1. New files being created
2. File upload completing
3. Files being deleted

If it was an NFS share, I’d try using FAM to detect the events, but I can’t see a way of doing anything equivalent?

Answer 1

Doesn’t sound like something I would use in production. But you could try something like this:

1. mount the SMB share with Samba on
   the machine that is running a PHP
   daemon
2. use SPL
   RecursiveIteratorIterator with
   DirectoryIterator to collect and
   maintain a list of all the files and
   folders on the shared drive
3. once in
   a while refresh the folder list and
   compare it with the current state,
   if the file does not exist any more
   you know it has been deleted, if
   there is a new file put it in the
   queue and mark it as “being
   uploaded”
4. in the next “refresh run”
   check the queued file, it the file
   size did not change the file upload
   probably completed, if the file size
   changed put it in the queue again
   and mark it as “being uploaded”