/**
* Checks if the current file has an extension allowed in its resource type.
*
* @return bool `true` if the file has an allowed exception.
*/
public function hasAllowedExtension()
{
if (strpos($this->getFilename(), '.') === false) {
return true;
}
$extension = $this->getExtension();
return $this->resourceType->isAllowedExtension($extension);
}
/**
* Returns URL to given file
*
* @param string $fileName
* @param string|null $thumbnailFileName
*
* @throws FileNotFoundException
* @throws InvalidExtensionException
* @throws InvalidRequestException
*
* @return null|string
*/
public function getFileUrl($fileName, $thumbnailFileName = null)
{
$config = $this->app['config'];
if (!File::isValidName($fileName, $config->get('disallowUnsafeCharacters'))) {
throw new InvalidRequestException('Invalid file name');
}
if ($thumbnailFileName) {
if (!File::isValidName($thumbnailFileName, $config->get('disallowUnsafeCharacters'))) {
throw new InvalidRequestException('Invalid thumbnail file name');
}
if (!$this->resourceType->isAllowedExtension(pathinfo($thumbnailFileName, PATHINFO_EXTENSION))) {
throw new InvalidExtensionException('Invalid thumbnail file name');
}
}
if (!$this->containsFile($fileName)) {
throw new FileNotFoundException();
}
return $this->backend->getFileUrl($this->resourceType, $this->getClientCurrentFolder(), $fileName, $thumbnailFileName);
}
/**
* Replaces double extensions disallowed for the resource type.
*
* @param string $fileName
* @param ResourceType $resourceType
*
* @return string file name with replaced double extensions.
*/
public static function replaceDisallowedExtensions($fileName, ResourceType $resourceType)
{
$pieces = explode('.', $fileName);
$basename = array_shift($pieces);
$lastExtension = array_pop($pieces);
foreach ($pieces as $ext) {
$basename .= $resourceType->isAllowedExtension($ext) ? '.' : '_';
$basename .= $ext;
}
// Add the last extension to the final name.
return $basename . '.' . $lastExtension;
}
