/**
* @param \Base $f3
* @param array $params
* @throws \Exception
*/
public function thumb($f3, $params)
{
$this->_useFileCache();
$cache = \Cache::instance();
// Ensure proper content-type for JPEG images
if ($params["format"] == "jpg") {
$params["format"] = "jpeg";
}
// Output cached image if one exists
$hash = $f3->hash($f3->get('VERB') . " " . $f3->get('URI')) . ".thm";
if ($cache->exists($hash, $data)) {
header("Content-type: image/" . $params["format"]);
echo $data;
return;
}
$file = new \Model\Issue\File();
$file->load($params["id"]);
if (!$file->id) {
$f3->error(404);
return;
}
$fg = 0x0;
$bg = 0xffffff;
// Generate thumbnail of image file
if (substr($file->content_type, 0, 6) == "image/") {
if (is_file($file->disk_filename)) {
$img = new \Helper\Image($file->disk_filename);
$hide_ext = true;
} else {
$protocol = isset($_SERVER["SERVER_PROTOCOL"]) ? $_SERVER["SERVER_PROTOCOL"] : "HTTP/1.0";
header($protocol . " 404 Not Found");
$img = new \Helper\Image("img/404.png");
}
$img->resize($params["size"], $params["size"]);
$fg = 0xffffff;
$bg = 0x0;
} elseif (substr($file->content_type, 0, 5) == "text/") {
// Get first 2KB of file
$fh = fopen($file->disk_filename, "r");
$str = fread($fh, 2048);
fclose($fh);
// Replace tabs with spaces
$str = str_replace("\t", " ", $str);
$img = new \Helper\Image();
$img->create($params["size"], $params["size"]);
$img->fill(0xffffff);
$img->text($str, round(0.05 * $params["size"]), 0, round(0.03 * $params["size"]), round(0.03 * $params["size"]), 0x777777);
// Show file type icon if available
if ($file->content_type == "text/csv" || $file->content_type == "text/tsv") {
$icon = new \Image("img/mime/table.png");
$img->overlay($icon);
}
} elseif (extension_loaded("zip") && $file->content_type == "application/vnd.openxmlformats-officedocument.wordprocessingml.document") {
$zip = zip_open($file->disk_filename);
while (($entry = zip_read($zip)) !== false) {
if (preg_match("/word\\/media\\/image[0-9]+\\.(png|jpe?g|gif|bmp|dib)/i", zip_entry_name($entry))) {
$idata = zip_entry_read($entry, zip_entry_filesize($entry));
$img = new \Helper\Image();
$img->load($idata);
break;
}
}
if (!isset($img)) {
$img = new \Helper\Image("img/mime/base.png");
}
$img->resize($params["size"], $params["size"]);
} else {
$img = new \Helper\Image("img/mime/base.png");
$img->resize($params["size"], $params["size"]);
}
// Render file extension over image
if (empty($hide_ext)) {
$ext = strtoupper(pathinfo($file->disk_filename, PATHINFO_EXTENSION));
$img->text($ext, $params["size"] * 0.125, 0, round(0.05 * $params["size"]), round(0.05 * $params["size"]), $bg);
$img->text($ext, $params["size"] * 0.125, 0, round(0.05 * $params["size"]) - 1, round(0.05 * $params["size"]) - 1, $fg);
}
// Render and cache image
$data = $img->dump($params["format"]);
$cache->set($hash, $data, $f3->get("cache_expire.attachments"));
// Output image
header("Content-type: image/" . $params["format"]);
echo $data;
}
