1 file.inc | file_download() |
Page callback: Handles private file transfers.
Call modules that implement hook_file_download() to find out if a file is accessible and what headers it should be transferred with. If one or more modules returned headers the download will start with the returned headers. If a module returns -1 backdrop_access_denied() will be returned. If the file exists but no modules responded backdrop_access_denied() will be returned. If the file does not exist backdrop_not_found() will be returned.
See also
Related topics
File
- core/
includes/ file.inc, line 2232 - API for handling file uploads and server file management.
Code
function file_download() {
// Merge remainder of arguments from GET['q'], into relative file path.
$args = func_get_args();
$scheme = array_shift($args);
$target = implode('/', $args);
$uri = $scheme . '://' . $target;
$uri = file_uri_normalize_dot_segments($uri);
if (file_stream_wrapper_valid_scheme($scheme) && file_exists($uri)) {
$headers = file_download_headers($uri);
if (count($headers)) {
file_transfer($uri, $headers);
}
backdrop_access_denied();
}
else {
backdrop_not_found();
}
backdrop_exit();
}