/
files.php
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/
files.php
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<?php
namespace Controller;
class Files extends \Controller
{
/**
* Force the framework to use the local filesystem cache method if possible
*/
protected function _useFileCache()
{
$f3 = \Base::instance();
$f3->set("CACHE", "folder=" . $f3->get("TEMP") . "cache/");
}
/**
* Send a file to the browser
*
* @param string $file
* @param string $mime
* @param string $filename
* @param bool $force
* @return int|bool
*/
protected function _sendFile($file, $mime = "", $filename = "", $force = true)
{
if (!is_file($file)) {
return false;
}
$size = filesize($file);
if (!$mime) {
$mime = \Web::instance()->mime($file);
}
header("Content-Type: $mime");
if ($force) {
if (!$filename) {
$filename = basename($file);
}
header("Content-Disposition: attachment; filename=\"$filename\"");
}
header("Accept-Ranges: bytes");
header("Content-Length: $size");
header("X-Powered-By: " . \Base::instance()->get("PACKAGE"));
readfile($file);
return $size;
}
/**
* GET /files/thumb/@size-@id.@format
*
* @param \Base $f3
* @param array $params
* @throws \Exception
*/
public function thumb($f3, $params)
{
$this->_useFileCache();
$cache = \Cache::instance();
// Abort on unusually large dimensions
if ($params["size"] > 1024) {
$f3->error(400);
return;
}
// Ensure proper content-type for JPEG images
if ($params["format"] == "jpg") {
$params["format"] = "jpeg";
}
// Output cached image if one exists
if ($f3->get("DEBUG") < 2) {
$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) {
$f3->error(404);
return;
}
// Load 404 image if original file is missing
if (!is_file($file->disk_filename)) {
header("Content-Type: image/svg+xml");
readfile("img/mime/96/_404.svg");
return;
}
// Initialize thumbnail image
$img = new \Image($file->disk_filename);
// Render thumbnail directly if no alpha
$alpha = (imagecolorat($img->data(), 0, 0) & 0x7F000000) >> 24;
// 1.1 fits perfectly but crops shadow, so we compare width vs height
$size = intval($params["size"]) ?: 96;
if ($alpha) {
$thumbSize = $size;
} elseif ($img->width() > $img->height()) {
$thumbSize = round($size / 1.1);
} else {
$thumbSize = round($size / 1.2);
}
// Resize thumbnail
$img->resize($thumbSize, $thumbSize, false);
$tw = $img->width();
$th = $img->height();
$ox = round(($size - $tw) / 2);
$oy = round(($size - $th) / 2);
$fs = round($size / 24);
$fb = round($fs * 0.75);
// Initialize frame image
$frame = imagecreatetruecolor($size, $size);
imagesavealpha($frame, true);
$transparent = imagecolorallocatealpha($frame, 0, 0, 0, 127);
imagefill($frame, 0, 0, $transparent);
if (!$alpha) {
// Draw drop shadow
$cs = imagecolorallocatealpha($frame, 0, 0, 0, 120);
imagefilledrectangle($frame, $ox - $fb, $size - $oy + $fb, $size - $ox + $fb, $size - $oy + round($fb * 1.5), $cs);
imagefilledrectangle($frame, $ox - round($fb / 2), $size - $oy + $fb, $size - $ox + round($fb / 2), $size - $oy + round($fb * 1.625), $cs);
imagefilledrectangle($frame, $ox, $size - $oy + $fb, $size - $ox, $size - $oy + round($fb * 2), $cs);
// Draw frame
$c0 = imagecolorallocatealpha($frame, 193, 193, 193, 16);
imagefilledrectangle($frame, $ox - $fs, $oy - $fs, $size - $ox + $fs, $size - $oy + $fs, $c0);
$c1 = imagecolorallocate($frame, 243, 243, 243);
imagefilledrectangle($frame, $ox - $fb, $oy - $fb, $size - $ox + $fb, $size - $oy + $fb, $c1);
$c2 = imagecolorallocate($frame, 230, 230, 230);
imagefilledpolygon($frame, array(
$size - $ox + $fb, $oy - $fb,
$size - $ox + $fb, $size - $oy + $fb,
$ox - $fb, $size - $oy + $fb,
), 3, $c2);
}
// Copy thumbnail onto frame
imagecopy($frame, $img->data(), $ox, $oy, 0, 0, $tw, $th);
if (!$alpha) {
// Draw inner shadow thumbnail
$c3 = imagecolorallocatealpha($frame, 0, 0, 0, 100);
imagerectangle($frame, $ox, $oy, $size - $ox, $size - $oy, $c3);
}
// Render and cache image
ob_start();
call_user_func_array('image' . $params["format"], array($frame));
$data = ob_get_clean();
if ($f3->get("DEBUG") < 2) {
$cache->set($hash, $data, $f3->get("cache_expire.attachments"));
}
// Output image
header("Content-type: image/" . $params["format"]);
echo $data;
}
/**
* GET /avatar/@size-@id.@format
*
* @param \Base $f3
* @param array $params
* @throws \Exception
*/
public function avatar($f3, $params)
{
// Ensure proper content-type for JPEG images
if ($params["format"] == "jpg") {
$params["format"] = "jpeg";
}
$user = new \Model\User();
$user->load($params["id"]);
if ($user->avatar_filename && is_file("uploads/avatars/" . $user->avatar_filename)) {
// Use local file
$img = new \Image($user->avatar_filename, null, "uploads/avatars/");
$img->resize($params["size"], $params["size"]);
// Render and output image
header("Content-type: image/" . $params["format"]);
header("Cache-Control: private, max-age=" . (3600 / 2));
$img->render($params["format"]);
} else {
// Send user to Gravatar
header("Cache-Control: max-age=" . (3600 * 24));
$f3->reroute($f3->get("SCHEME") . ":" . \Helper\View::instance()->gravatar($user->email, $params["size"]), true);
}
}
/**
* GET /files/preview/@id
*
* @param \Base $f3
* @param array $params
* @throws \Exception
*/
public function preview($f3, $params)
{
$file = new \Model\Issue\File();
$file->load($params["id"]);
if (!$file->id || !is_file($file->disk_filename)) {
$f3->error(404);
return;
}
if (substr($file->content_type, 0, 5) == "image" || $file->content_type == "text/plain") {
$this->_sendFile($file->disk_filename, $file->content_type, null, false);
return;
}
if ($file->content_type == "text/csv" || $file->content_type == "text/tsv") {
$delimiter = ",";
if ($file->content_type == "text/tsv") {
$delimiter = "\t";
}
$f3->set("file", $file);
$f3->set("delimiter", $delimiter);
$this->_render("issues/file/preview/table.html");
return;
}
$f3->reroute("/files/{$file->id}/{$file->filename}");
}
/**
* GET /files/@id/@name
*
* @param \Base $f3
* @param array $params
* @throws \Exception
*/
public function file($f3, $params)
{
$file = new \Model\Issue\File();
$file->load($params["id"]);
if (!$file->id) {
$f3->error(404);
return;
}
$force = true;
if (substr($file->content_type, 0, 5) == "image" ||
$file->content_type == "text/plain" ||
$file->content_type == "application/pdf"
) {
$force = false;
}
if (!$this->_sendFile($file->disk_filename, $file->content_type, $file->filename, $force)) {
$f3->error(404);
}
}
}