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- <?php namespace System;
- class File {
- /**
- * Get the contents of a file.
- *
- * @param string $path
- * @return string
- */
- public static function get($path)
- {
- return file_get_contents($path);
- }
- /**
- * Write to a file.
- *
- * @param string $path
- * @param string $data
- * @return int
- */
- public static function put($path, $data)
- {
- return file_put_contents($path, $data, LOCK_EX);
- }
- /**
- * Append to a file.
- *
- * @param string $path
- * @param string $data
- * @return int
- */
- public static function append($path, $data)
- {
- return file_put_contents($path, $data, LOCK_EX | FILE_APPEND);
- }
- /**
- * Extract the extension from a file path.
- *
- * @param string $path
- * @return string
- */
- public static function extension($path)
- {
- return pathinfo($path, PATHINFO_EXTENSION);
- }
- /**
- * Get a file MIME type by extension.
- *
- * @param string $extension
- * @param string $default
- * @return string
- */
- public static function mime($extension, $default = 'application/octet-stream')
- {
- $mimes = Config::get('mimes');
- if (array_key_exists($extension, $mimes))
- {
- return (is_array($mimes[$extension])) ? $mimes[$extension][0] : $mimes[$extension];
- }
- return $default;
- }
- /**
- * Determine if a file is a given type.
- *
- * The Fileinfo PHP extension will be used to determine the MIME type
- * of the file. Any extension in the mimes configuration array may
- * be passed as a type.
- */
- public static function is($extension, $path)
- {
- $mimes = Config::get('mimes');
- if ( ! array_key_exists($extension, $mimes))
- {
- throw new \Exception("File extension [$extension] is unknown. Cannot determine file type.");
- }
- $mime = finfo_file(finfo_open(FILEINFO_MIME_TYPE), $path);
- return (is_array($mimes[$extension])) ? in_array($mime, $mimes[$extension]) : $mime === $mimes[$extension];
- }
- /**
- * Create a response that will force a file to be downloaded.
- *
- * @param string $path
- * @param string $name
- * @return Response
- */
- public static function download($path, $name = null)
- {
- if (is_null($name))
- {
- $name = basename($path);
- }
- $response = Response::make(static::get($path));
- $response->header('Content-Description', 'File Transfer');
- $response->header('Content-Type', static::mime(static::extension($path)));
- $response->header('Content-Disposition', 'attachment; filename="'.$name.'"');
- $response->header('Content-Transfer-Encoding', 'binary');
- $response->header('Expires', 0);
- $response->header('Cache-Control', 'must-revalidate, post-check=0, pre-check=0');
- $response->header('Pragma', 'public');
- $response->header('Content-Length', filesize($path));
- return $response;
- }
- /**
- * Move an uploaded file to storage.
- *
- * @param string $key
- * @param string $path
- * @return bool
- */
- public static function upload($key, $path)
- {
- return array_key_exists($key, $_FILES) ? move_uploaded_file($_FILES[$key]['tmp_name'], $path) : false;
- }
- }
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