Question

I have been unsuccesfully attempting to upload an encrypted file to an FTP server, without writing it to the filesystem first (which has security implications)

I have been attempting to use proc_open and then ftp_fput but to no avail, I guess because the stream created in proc_open isn’t fstatable

Here is the code

<?php $ciphertext = 'sadfasfasdf90809sf890as8fjwkjlf';  //The Descriptors $descriptorspec = array(    0 => array('pipe', 'r'),  // stdin    1 => array('pipe', 'w'),  // stdout    2 => array('pipe', 'w')   // error );  $process = proc_open('cat', $descriptorspec, $pipes); if (is_resource($process)) {     fwrite($pipes[0], $ciphertext);  fclose($pipes[0]);  //Debug test to proce that $pipes[1] is a valid stream      //while(!feof($pipes[1])) { //  $content .=  fgets($pipes[1],1024); //}  //FTP connection etc etc OMMITTED to save space.  $upload = @ftp_fput($conn_id,$dir.'/'.$ftp_file.$extenstion,$pipes[1],FTP_BINARY); fclose($pipes[1]); // Check upload status echo ('upload '. ($upload ? 'true':' false'));  } ?>  

I hope someone can help or suggest any improvements or alternative methods.

Thanks,

Phil

Answer 1

Never trust a server admin!

The code above works and doesn’t require you to use a tmpfile.

Thanks,

Phil