/**
* View image
* @param Difra\Param\AnyInt $id
* @throws Difra\View\HttpError
*/
public function tmpAction(\Difra\Param\AnyInt $id)
{
$data = \Difra\Libs\Vault::get($id->val());
if (!$data) {
throw new \Difra\View\HttpError(404);
}
\Difra\View::$rendered = true;
header('Content-type: image/png');
echo $data;
}
/**
* Save images
* Saves images found in $html to $path and replaces paths in img src="..." to $urlPrefix/{$id}.png.
* Warning: if $path contains files not found in $html's as img src="..." links, those files will be deleted.
* 1. Use $path exclusively for one object.
* 2. Call saveImages() before saving $html
* @param $html
* @param $path
* @param $urlPrefix
*/
public static function saveImages(&$html, $path, $urlPrefix)
{
// when using AjaxSafeHTML, characters inside src= are encoded using ESAPI
$html = str_replace('src="http://' . Envi::getHost() . '/up/tmp/', 'src="/up/tmp/', $html);
$html = str_replace('src="/up/tmp/', 'src="/up/tmp/', $html);
$html = str_replace('src="http://' . Envi::getHost() . str_replace('/', '/', "{$urlPrefix}/"), 'src="' . $urlPrefix . '/', $html);
$html = str_replace('src="' . str_replace('/', '/', $urlPrefix . '/'), 'src="' . $urlPrefix . '/', $html);
preg_match_all('/src=\\"\\/up\\/tmp\\/([0-9]+)\\"/', $html, $newImages);
preg_match_all('/src=\\"' . preg_quote($urlPrefix, '/') . '\\/([0-9]+)\\.png\\"/', $html, $oldImages);
if (!empty($oldImages[1])) {
$usedImages = $oldImages[1];
} else {
$usedImages = [];
}
if (!empty($newImages[1])) {
@mkdir($path, 0777, true);
$urlPrefix = trim($urlPrefix, '/');
foreach ($newImages[1] as $v) {
$img = Vault::get($v);
file_put_contents("{$path}/{$v}.png", $img);
$html = str_replace("src=\"/up/tmp/{$v}\"", "src=\"/{$urlPrefix}/{$v}.png\"", $html);
Vault::delete($v);
$usedImages[] = $v;
}
}
if (is_dir($path)) {
$dir = opendir($path);
while (false !== ($file = readdir($dir))) {
if ($file[0] == '.') {
continue;
}
if (substr($file, -4) != '.png' or !in_array(substr($file, 0, strlen($file) - 4), $usedImages)) {
@unlink("{$path}/{$file}");
}
}
}
}
/**
* Save images
* @param string $path
* @param string $urlPrefix
*/
public function saveImages($path, $urlPrefix)
{
/** @noinspection PhpUndefinedFieldInspection */
Vault::saveImages($this->value, $path, $urlPrefix);
$this->savedImages = true;
}
