/**
* Trys to find the mime type of a file
* and returns it, otherwise a $default value will
* be returned (application/octet-stream per default)
*
* $file must be an instance of sfFilebasePluginFile
*
* @param sfFilebasePluginFile $absolute_path
* @param string $default
* @return string $mime_type
*/
public static function getMimeType(sfFilebasePluginFile $file, $default = 'application/octet-stream', $extension = null)
{
$mime_type = false;
$ext = $extension === null ? $file->getExtension() : $extension;
// Using file_exists() instead of sfFilebasePluginFile::fileExists()
// to avoid recursion issue. sfFilebasePluginFile::fileExists()
// calls sfFilebasePlugin::getFilebaseFile() calls
// sfFilebaseUtil::getMimeType()...
if (file_exists($file->getPathname())) {
if (!$file->isReadable()) {
throw new sfFilebasePluginException(sprintf('File %s is read protected.', $file->getPathname()));
}
// 1st step, check magic mimeinfo
if (class_exists('finfo')) {
$finfo = new finfo(FILEINFO_MIME);
$mime_type = $finfo->file($file->getPathname());
} elseif (function_exists('mime_content_type')) {
$mime_type = mime_content_type($file->getPathname());
}
}
if ($mime_type) {
if (!empty($ext)) {
$ext_mime_type = self::getMimeByExtension($ext, null);
if ($ext_mime_type != $mime_type && array_key_exists($mime_type, self::$mime_dependencies) && in_array($ext, self::$mime_dependencies[$mime_type])) {
return $ext_mime_type;
}
}
return $mime_type;
}
// 3. check extension
return self::getMimeByExtension($ext, $default);
}
/**
* Trys to find the mime type of a file
* and returns it, otherwise a $default value will
* be returned (application/octet-stream per default)
*
* If $extension isset to <> null, this extension will
* be assumed as the given file's native extension (used
* by file upload manager where the tmp-file has no extension)
*
* $file must be an instance of sfFilebasePluginFile
*
* @param sfFilebasePluginFile $absolute_path
* @param string $default
* @param string $default mime
* @param string $default_extension
* @return string $mime_type
*/
public static function getMimeType(sfFilebasePluginFile $file, $default = 'application/octet-stream', $extension = null)
{
$mime_type = false;
$ext = $extension === null ? $file->getExtension() : $extension;
// CALL file_exists() TO AVOID RECURSIONS
if (file_exists($file->getPathname())) {
if (!$file->isReadable()) {
throw new sfFilebasePluginException(sprintf('File %s is read protected.', $file->getPathname()));
}
// 1st step, check magic mimeinfo
if (class_exists('finfo')) {
$finfo = new finfo(FILEINFO_MIME, '/usr/share/file/magic');
$mime_type = $finfo->file($file->getPathname());
}
if (!$mime_type && function_exists('mime_content_type')) {
$mime_type = mime_content_type($file->getPathname());
}
}
// COMPARE DETECTED MIME TYPE WITH
// THE FILE'S EXTENSION BY REGARDING
// MIME DEPENDENCIES
if ($mime_type) {
if (!empty($ext)) {
$ext_mime_type = self::getMimeByExtension($ext, null);
if ($ext_mime_type != $mime_type && array_key_exists($mime_type, self::$mime_dependencies) && in_array($ext, self::$mime_dependencies[$mime_type])) {
return $ext_mime_type;
}
}
return $mime_type;
}
// 3. check extension
return self::getMimeByExtension($ext, $default);
}
