| | |
| | | if(!isset($url['pass'])) { |
| | | $url['pass'] = 'anonymous@mpk.jacekk.net'; |
| | | } |
| | | if($file == NULL) { |
| | | if($file === NULL) { |
| | | $file = basename($url['path']); |
| | | } |
| | | |
| | |
| | | |
| | | $updated = FALSE; |
| | | |
| | | if($localTime < $remoteTime || ($localTime == $remoteTime && $localSize != $remoteSize)) { |
| | | if(file_exists($file.'.tmp')) { |
| | | unlink($file.'.tmp'); |
| | | } |
| | | $ftp->get($file.'.tmp', $url['path'], FTP_BINARY); |
| | | touch($file.'.tmp', $remoteTime); |
| | | if(!rename($file.'.tmp', $file)) { |
| | | throw new Exception('Temporary file rename failed'); |
| | | } |
| | | $updated = TRUE; |
| | | if($localTime >= $remoteTime && $localSize == $remoteSize) { |
| | | return FALSE; |
| | | } |
| | | |
| | | return $updated; |
| | | if(file_exists($file.'.tmp')) { |
| | | unlink($file.'.tmp'); |
| | | } |
| | | $ftp->get($file.'.tmp', $url['path'], FTP_BINARY); |
| | | touch($file.'.tmp', $remoteTime); |
| | | if(!rename($file.'.tmp', $file)) { |
| | | throw new Exception('Temporary file rename failed'); |
| | | } |
| | | |
| | | return TRUE; |
| | | } |
| | | |
| | | static function parse_http_headers($headers) { |
| | | $hasHeader = FALSE; |
| | | foreach($headers as $header) { |
| | | if(substr($header, 0, 5) === 'HTTP/') { |
| | | $code = substr($header, 9, 3); |
| | | if($code === '304') { |
| | | return NULL; |
| | | } elseif(substr($code, 0, 1) == '2') { |
| | | $hasHeader = TRUE; |
| | | } |
| | | } elseif($hasHeader && strtolower(substr($header, 0, 15)) === 'last-modified: ') { |
| | | return strptime(substr($header, 15), 'D, d M Y H:i:s T'); |
| | | } |
| | | } |
| | | return FALSE; |
| | | } |
| | | |
| | | static function generic($url, $file = NULL) { |
| | | if($file == NULL) { |
| | | if($file === NULL) { |
| | | $file = basename($url['url']); |
| | | } |
| | | $data = file_get_contents($url); |
| | | |
| | | $context = []; |
| | | if(is_file($file)) { |
| | | $file_date = filemtime($file); |
| | | $context['http'] = [ |
| | | 'header' => [ |
| | | 'If-Modified-Since: '.gmdate('D, d M Y H:i:s T', $file_date), |
| | | ], |
| | | ]; |
| | | } |
| | | |
| | | $data = file_get_contents($url, FALSE, stream_context_create($context)); |
| | | $remoteTime = FALSE; |
| | | if(isset($http_response_header) && is_array($http_response_header)) { |
| | | $remoteTime = self::parse_http_headers($http_response_header); |
| | | if($remoteTime === NULL) { |
| | | return FALSE; |
| | | } |
| | | } |
| | | |
| | | if($data === FALSE) { |
| | | throw new Exception('URL fetch failed'); |
| | | } |
| | | if(file_put_contents($file.'.tmp', $data) === FALSE) { |
| | | throw new Exception('Temporary file creation failed'); |
| | | } |
| | | if($remoteTime !== FALSE) { |
| | | touch($file.'.tmp', $remoteTime); |
| | | } |
| | | if(!rename($file.'.tmp', $file)) { |
| | | throw new Exception('Temporary file rename failed'); |
| | | } |
| | | |
| | | return TRUE; |
| | | } |
| | | |
| | | static function auto($url, $file = NULL) { |
| | | if($file === NULL) { |
| | | $file = basename($url['url']); |
| | | } |
| | | if(substr($url, 0, 4) == 'ftp:') { |
| | | return self::ftp($url, $file); |
| | | } |
| | | return self::generic($url, $file); |
| | | } |
| | | } |