ftp_get status throbber

[elentz]

I have a rude and crude script that I put together that works for my purposes.  I would like to get some type of indicator that shows the progress of the download.  How can I do this?  Thanks Here is my code:

<?php
// connect and login to FTP server
$ftp_username = "firmware";
$ftp_userpass = "password";
$ftp_server = "ftp.myserver.com";
$ftp_conn = ftp_connect($ftp_server) or die("Could not connect to $ftp_server");
$login = ftp_login($ftp_conn, $ftp_username, $ftp_userpass);

$local_file = "/tftpboot/firmware/400/400firmware.fw";
$server_file = "firmware.fw";
ftp> hash;
// download server file
if (ftp_get($ftp_conn, $local_file, $server_file, FTP_ASCII))
  {
  echo "New Firmware successfully downloaded for the 400.";
  }
else
  {
  echo "Error downloading $server_file.";
  }

// close connection
ftp_close($ftp_conn);
?>

[requinix]

Depends on what sort of indicator you want to use.

[elentz]

Some type of bar would be fine. Right now all I have is the end message.

[requinix]

So in other words you want to have three scripts:

1. One for the page that shows the progress and whatever else

2. One that does the actual FTP operation(s) and is started by #1

3. One called through AJAX that reports on the progress of the operation and is used by #1 to update its progress bar

[elentz]

It is that complicated?

[requinix]

Well yeah. Technically you could combine 1+2 (the displayed page can also start the download) or 2+3 (the page doing the download can report its progress back as it goes) but it doesn't decrease the complexity - only move it around, or even make it worse.

It doesn't mean you have to have three separate .php files: there have to be three things executing separately, and whether all the code is in one file or not isn't an issue.

 

So here's the process:

1. You show the #1 page to the user. No progress yet.

2. User clicks a button to start the download, or it starts automatically. Doesn't matter. The process involves an AJAX request to start the #2 script with the download.

3. After that has started, the page periodically checks with the #3 script for the progress of the download. The #2 request is still running but you can't get much information from it.

4. Eventually the #2 request finishes and it returns a response like any other AJAX page would. The #1 page stops calling #3 because the download is complete (be it successfully or not).

 

The #1 page works however you want. The #2 script is basically the code you have there. The #3 script can simply report the size of the local downloaded file, which can be compared to the total file size for progress.

[elentz]

Ok thanks. I will have to study up on Ajax