Reads the file, detects the compression MIME type, closes the file
and returns the MIME type
| public static getCompressionMimeType ( resource $file ) : string | ||
| $file | resource | the file handle |
| 리턴 | string | the MIME type for compression, or 'none' |
/**
* Detects what compression the file uses
*
* @param string $filepath filename to check
*
* @return string MIME type of compression, none for none
* @access public
*/
function PMA_detectCompression($filepath)
{
$file = @fopen($filepath, 'rb');
if (!$file) {
return false;
}
return PMA\libraries\Util::getCompressionMimeType($file);
}
/**
* Detects what compression the file uses
*
* @todo move file read part into readChunk() or getChunk()
* @todo add support for compression plugins
* @access protected
* @return string|false false on error, otherwise string MIME type of
* compression, none for none
*/
protected function detectCompression()
{
// suppress warnings from being displayed, but not from being logged
// f.e. any file access outside of open_basedir will issue a warning
ob_start();
$file = fopen($this->getName(), 'rb');
ob_end_clean();
if (!$file) {
$this->_error_message = Message::error(__('File could not be read!'));
return false;
}
/**
* @todo
* get registered plugins for file compression
foreach (PMA_getPlugins($type = 'compression') as $plugin) {
if ($plugin['classname']::canHandle($this->getName())) {
$this->setCompressionPlugin($plugin);
break;
}
}
*/
$this->_compression = Util::getCompressionMimeType($file);
return $this->_compression;
}
