/**
* Test that getTypeFromExt() returns a mime type from the ext.
*/
public function testGetTypeFromExt()
{
$this->assertEquals('image/png', MimeType::getTypeFromExt('png'));
$this->assertEquals('application/x-7z-compressed', MimeType::getTypeFromExt('7z'));
try {
MimeType::getTypeFromExt('foobar');
$this->assertTrue(false);
} catch (Exception $e) {
$this->assertTrue(true);
}
}
/**
* Return the mime type.
*
* @uses Transit\MimeType
*
* @return string
*/
public function type()
{
return $this->_cache(__FUNCTION__, function ($file) {
/** @type \Transit\File $file */
$type = null;
// We can't use the file command on windows
if (!defined('PHP_WINDOWS_VERSION_MAJOR')) {
$type = shell_exec(sprintf("file -b --mime %s", escapeshellarg($file->path())));
if ($type && strpos($type, ';') !== false) {
$type = strstr($type, ';', true);
}
}
// Fallback because of fileinfo bug: https://bugs.php.net/bug.php?id=53035
if (!$type) {
$info = finfo_open(FILEINFO_MIME_TYPE);
$type = finfo_file($info, $file->path());
finfo_close($info);
}
// Check the mimetype against the extension
// If they are different, use the extension since fileinfo returns invalid mimetypes
// This could be problematic in the future, but unknown better alternative
if ($ext = $file->ext()) {
try {
$extType = MimeType::getTypeFromExt($ext);
// Use $_FILES['type'] last since sometimes it returns application/octet-stream and other mimetypes
// When we should always have a true mimetype
} catch (InvalidArgumentException $e) {
$extType = $file->data('type');
}
if ($type !== $extType) {
$type = $extType;
}
}
return $type;
});
}
