/**
* Show the requestet file and calculate headers
*
* @param string $filename
* @return mixed
*/
public function show($filename)
{
$path = getUploadDirectory() . '/' . $filename . '/default';
if (Storage::exists($path)) {
clearstatcache();
$file = Storage::get($path);
$lastModified = filemtime(storage_path('/app/') . $path);
$etagFile = md5_file(storage_path('/app/') . $path);
$etagHeader = isset($_SERVER['HTTP_IF_NONE_MATCH']) ? trim($_SERVER['HTTP_IF_NONE_MATCH']) : false;
$responseCode = 200;
if (@strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) == $lastModified || $etagHeader == $etagFile) {
$responseCode = 304;
}
return response($file, $responseCode)->header('Content-Type', getFileContentTypeByFilename($filename))->header('Last-Modified', gmdate('D, d M Y H:i:s', $lastModified) . ' GMT')->header('Etag', $etagFile)->header('Cache-Control', 'public');
}
abort(404);
}
/**
* Get full file path
*
* @return string
*/
protected function getFilePath()
{
return storage_path('/app/') . getUploadDirectory() . '/' . $this->filename . '/default';
}
/**
* Tries to match the PlantUML given as argument against the cache.
* If the picture has not been rendered before, it'll
* try to render the PlantUML and drop it in the picture cache directory.
* Embedded links will be expanded into a image map file with the same
* name, but extension ".cmapx". When found, it will be included in the
* results.
*
* @param string model in been format
* @returns an array with four elements:
* 'src': the webserver based URL to a picture which contains the
* requested PlantUML model. If anything fails, this value is
* false.
* 'file': the full pathname to the file containing the image map data
* when present. When no map data is present, this value is empty.
* 'map': the rendered HTML-fragment for an image map. Empty when not
* needed.
* 'mapid': the unique id for the rendered image map , useable for further
* HTML-rendering.
*/
function getImage($PlantUML_Source, $argv, $parser = null)
{
global $plantumlImagetype;
global $usecloud;
// Compute hash
$title_hash = md5(getPageTitle($parser));
$formula_hash = md5($PlantUML_Source);
$filename_prefix = 'uml-' . $title_hash . "-" . $formula_hash;
$dirname = getUploadDirectory();
$full_path_prefix = $dirname . "/" . $filename_prefix;
$result = array('mapid' => $formula_hash, 'src' => false, 'map' => '', 'file' => '');
$imgFile = $dirname . "/" . $filename_prefix . ".{$plantumlImagetype}";
// Check cache. When found, reuse it. When not, generate image.
// Honor the redraw tag as found in <uml redraw>
if (is_file($imgFile) and !array_key_exists('redraw', $argv)) {
$result['file'] = $imgFile;
} else {
if ($usecloud) {
$result['file'] = renderPlantUML_cloud($PlantUML_Source, $imgFile);
} else {
$result['file'] = renderPlantUML($PlantUML_Source, $imgFile, $dirname, $filename_prefix);
}
}
if ($result['file']) {
$result['src'] = getUploadPath() . "/" . basename($result['file']);
if (!$usecloud && $plantumlImagetype == 'png') {
$map_filename = $full_path_prefix . ".cmapx";
if (is_file($map_filename)) {
// map file is temporary data - read it and delete it.
$fp = fopen($map_filename, 'r');
$image_map_data = fread($fp, filesize($map_filename));
fclose($fp);
//unlink($map_filename);
// Replace generic ids with unique ids: first two ".." fields.
$result['map'] = preg_replace('/"[^"]*"/', "\"{$result['mapid']}\"", $image_map_data, 2);
}
}
}
return $result;
}
/**
* Get directory path for the new file
*
* @return string
*/
protected function getNewFileDirectory()
{
return getUploadDirectory() . '/' . $this->to;
}
/**
* Get the file directory
*
* @return string
*/
protected function getFileDirectory()
{
return getUploadDirectory() . '/' . $this->filename;
}
