ftp / file transfer problem using Amazon Scalr environment

[eluser]Unknown[/eluser]
Hi,

I've having bother with a utility I've coded within the CI environment that is used to transfer files (primarily images) from one server to another. The utility works by logging on to a linux server, traversing a number of directories and ftp'ing the files to the target machine.

The utility works fine in my development enivironment (WAMP architecture) when it accesses the remote linux (dedicated) server. It's when the utility is executed in the test environemtn it fails. In this latter case the utility is executed from an Amazon Scalr environment but still trying to transfer files from the dedicated linux server.

I've entered numerous log messages to see what's going on. It appears as if the utility on Scalr environment is accessing the linux server ok, and changing to the appropriate directories but it doesn't seem to be able to see the contents of the directories. All such directories have 0777 permissions set on them.

Here's some snippets of code:

Code:

// check connection
if ($conn_id && $login_result) {
                
    // Change directory
    $currentDir = ftp_pwd($conn_id);
    $chdirResult = ftp_chdir($conn_id, $origPropertyId);
    $currentDir = ftp_pwd($conn_id);
                
    log_message('kdebug', "Current Dir: ".$currentDir);
                
    if ($chdirResult) {
        log_message('kdebug', "Chdir worked.");
        // get contents of the current directory
        $contents = ftp_nlist($conn_id, ".");

        // process $contents
        log_message('kdebug', "Directory element count: ".count($contents));
        for ($j = 0; $j < count($contents); $j++) {
            $filename = $contents[$j];
            log_message('kdebug', "Filename: ".$filename);
            if (strcmp($filename, ".") && strcmp($filename, "..") && strcmp($filename, "mcith")) {
                $transferResult = ftp_get($conn_id, $photoDir."/".$filename, $filename, FTP_BINARY);
            }
        }
                
        // Also get thumbnails
        $chdirResult = ftp_chdir($conn_id, "mcith");
                
        if ($chdirResult) {
            // get contents of the current directory
            $contents = ftp_nlist($conn_id, ".");

            // process $contents
            for ($j = 0; $j < count($contents); $j++) {
                $filename = $contents[$j];
                log_message('kdebug', "MCITH Filename: ".$filename);
                if (strcmp($filename, ".") && strcmp($filename, "..")) {
                    $transferResult = ftp_get($conn_id, $photoDir."/mcith/".$filename, $filename, FTP_BINARY);
                }
            }
                
            // Return to the parent directory
            ftp_cdup($conn_id);
        }
        ftp_cdup($conn_id);
    } else {
        log_message('kdebug', "Chdir failed!!");
    }

}

Any help would be greatly appreciated.

Brian
http://www.rentpro.co.uk/