| | |
| | | <?php |
| | | require_once(__DIR__.'/FtpConnection.php'); |
| | | |
| | | function ftp_fetch_if_newer($url, $file = NULL) { |
| | | $url = parse_url($url); |
| | | if(!isset($url['scheme']) || $url['scheme'] != 'ftp') { |
| | |
| | | $localSize = filesize($file); |
| | | } |
| | | |
| | | $ftp = ftp_connect($url['host'], $url['port'], 10); |
| | | if($ftp === FALSE) { |
| | | throw new Exception('FTP connection failed'); |
| | | } |
| | | if(!ftp_login($ftp, $url['user'], $url['pass'])) { |
| | | throw new Exception('FTP login failed'); |
| | | } |
| | | if(!ftp_pasv($ftp, TRUE)) { |
| | | throw new Exception('Passive FTP request failed'); |
| | | } |
| | | $remoteSize = ftp_size($ftp, $url['path']); |
| | | if($remoteSize < 0) { |
| | | throw new Exception('FTP file size fetch failed'); |
| | | } |
| | | $remoteTime = ftp_mdtm($ftp, $url['path']); |
| | | if($remoteTime < 0) { |
| | | throw new Exception('FTP modification time fetch failed'); |
| | | } |
| | | $ftp = FtpConnection::create($url['host'], $url['port'], $url['user'], $url['pass']); |
| | | $remoteSize = $ftp->size($url['path']); |
| | | $remoteTime = $ftp->mdtm($url['path']); |
| | | |
| | | $updated = FALSE; |
| | | |
| | |
| | | if(file_exists($file.'.tmp')) { |
| | | unlink($file.'.tmp'); |
| | | } |
| | | if(ftp_get($ftp, $file.'.tmp', $url['path'], FTP_BINARY)) { |
| | | touch($file.'.tmp', $remoteTime); |
| | | if(!rename($file.'.tmp', $file)) { |
| | | throw new Exception('Temporary file rename failed'); |
| | | } |
| | | $updated = TRUE; |
| | | $ftp->get($file.'.tmp', $url['path'], FTP_BINARY); |
| | | touch($file.'.tmp', $remoteTime); |
| | | if(!rename($file.'.tmp', $file)) { |
| | | throw new Exception('Temporary file rename failed'); |
| | | } |
| | | $updated = TRUE; |
| | | } |
| | | |
| | | ftp_close($ftp); |
| | | |
| | | return $updated; |
| | | } |