thumbnail.php
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<?php
/**
* Copyright (c) 2012 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OCA\Gallery;
use OC\Files\Filesystem;
use OC\Files\View;
class Thumbnail {
protected $image;
protected $path;
protected $user;
protected $useOriginal = false;
/**
* @var \OC\Files\View $view
*/
protected $view;
public function __construct($imagePath, $user = null, $square = false) {
if (!Filesystem::isValidPath($imagePath)) {
return;
}
if (is_null($user)) {
$this->view = Filesystem::getView();
$this->user = \OCP\User::getUser();
} else {
$this->view = new View('/' . $user . '/files');
$this->user = $user;
}
$this->useOriginal = (substr($imagePath, -4) === '.svg' or substr($imagePath, -5) === '.svgz');
if ($this->useOriginal) {
$this->path = $imagePath;
} else {
$galleryDir = \OC_User::getHome($this->user) . '/gallery/' . $this->user . '/';
if (strrpos($imagePath, '.')) {
$extension = substr($imagePath, strrpos($imagePath, '.') + 1);
$image = substr($imagePath, 0, strrpos($imagePath, '.'));
} else {
$extension = '';
$image = $imagePath;
}
if ($square) {
$extension = 'square.' . $extension;
}
$this->path = $galleryDir . $image . '.' . $extension;
if (!file_exists($this->path)) {
$this->create($imagePath, $square);
}
}
}
private function create($imagePath, $square) {
$galleryDir = \OC_User::getHome($this->user) . '/gallery/' . $this->user . '/';
$dir = dirname($imagePath);
$fileInfo = $this->view->getFileInfo($imagePath);
if (!$fileInfo) {
return false;
}
if (!is_dir($galleryDir . $dir)) {
mkdir($galleryDir . $dir, 0755, true);
}
$this->image = new \OCP\Image();
// check if file is encrypted
if ($fileInfo['encrypted'] === true) {
$fileName = $this->view->toTmpFile($imagePath);
} else {
$fileName = $this->view->getLocalFile($imagePath);
}
$this->image->loadFromFile($fileName);
if ($this->image->valid()) {
$this->image->fixOrientation();
if ($square) {
$this->image->centerCrop(200);
} else {
$this->image->fitIn($this->image->width(), 200);
if ($this->image->width() > 600) { // max aspect ratio of 3
$this->image->crop(($this->image->width() - 600) / 2, 0, 600, 200);
}
}
$this->image->save($this->path);
}
}
public function get() {
if (is_null($this->image)) {
$this->image = new \OCP\Image($this->path);
}
return $this->image;
}
public function show() {
if ($this->useOriginal) {
$fp = @$this->view->fopen($this->path, 'rb');
$mtime = $this->view->filemtime($this->path);
$size = $this->view->filesize($this->path);
$mime = $this->view->getMimetype($this->path);
} else {
$fp = @fopen($this->path, 'rb');
$mtime = filemtime($this->path);
$size = filesize($this->path);
$mime = \OC_Helper::getMimetype($this->path);
}
if ($fp) {
\OCP\Response::enableCaching();
\OCP\Response::setLastModifiedHeader($mtime);
header('Content-Length: ' . $size);
header('Content-Type: ' . $mime);
\OCP\Response::setContentDispositionHeader(basename($this->path), 'attachment');
fpassthru($fp);
} else {
\OC_Response::setStatus(\OC_Response::STATUS_NOT_FOUND);
}
}
static public function removeHook($params) {
$path = $params['path'];
$user = \OCP\User::getUser();
$galleryDir = \OC_User::getHome($user) . '/gallery/';
$thumbPath = $galleryDir . $path;
if (is_dir($thumbPath)) {
if (file_exists($thumbPath . '.png')) {
unlink($thumbPath . '.png');
}
} else {
if (file_exists($thumbPath)) {
unlink($thumbPath);
}
if (strrpos($path, '.')) {
$extension = substr($path, strrpos($path, '.') + 1);
$image = substr($path, 0, strrpos($path, '.'));
} else {
$extension = '';
$image = $path;
}
$squareThumbPath = $galleryDir . $image . '.square.' . $extension;
if (file_exists($squareThumbPath)) {
unlink($squareThumbPath);
}
}
$parent = dirname($path);
if ($parent !== DIRECTORY_SEPARATOR and $parent !== '' and $parent !== $path) {
self::removeHook(array('path' => $parent));
}
}
static public function writeHook($params) {
self::removeHook($params);
}
}