134 lines
3.9 KiB
PHP
134 lines
3.9 KiB
PHP
<?php
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namespace OC\Pictures;
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class DatabaseManager {
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private static $instance = null;
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protected $cache = array();
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const TAG = 'DatabaseManager';
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public static function getInstance() {
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if (self::$instance === null)
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self::$instance = new DatabaseManager();
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return self::$instance;
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}
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protected function getPathData($path) {
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$stmt = \OCP\DB::prepare('SELECT * FROM *PREFIX*pictures_images_cache
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WHERE uid_owner LIKE ? AND path like ? AND path not like ?');
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$path_match = $path.'/%';
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$path_notmatch = $path.'/%/%';
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$result = $stmt->execute(array(\OCP\USER::getUser(), $path_match, $path_notmatch));
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$this->cache[$path] = array();
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while (($row = $result->fetchRow()) != false) {
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$this->cache[$path][$row['path']] = $row;
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}
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}
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public function setFileData($path, $width, $height) {
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$stmt = \OCP\DB::prepare('INSERT INTO *PREFIX*pictures_images_cache (uid_owner, path, width, height) VALUES (?, ?, ?, ?)');
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$stmt->execute(array(\OCP\USER::getUser(), $path, $width, $height));
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$ret = array('path' => $path, 'width' => $width, 'height' => $height);
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$dir = dirname($path);
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$this->cache[$dir][$path] = $ret;
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return $ret;
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}
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public function getFileData($path) {
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$gallery_path = \OCP\Config::getSystemValue( 'datadirectory' ).'/'.\OC_User::getUser().'/gallery';
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$path = $gallery_path.$path;
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$dir = dirname($path);
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if (!isset($this->cache[$dir])) {
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$this->getPathData($dir);
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}
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if (isset($this->cache[$dir][$path])) {
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return $this->cache[$dir][$path];
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}
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$image = new \OC_Image();
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if (!$image->loadFromFile($path)) {
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return false;
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}
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$ret = $this->setFileData($path, $image->width(), $image->height());
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unset($image);
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$this->cache[$dir][$path] = $ret;
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return $ret;
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}
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private function __construct() {}
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}
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class ThumbnailsManager {
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private static $instance = null;
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const TAG = 'ThumbnailManager';
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const THUMBNAIL_HEIGHT = 150;
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public static function getInstance() {
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if (self::$instance === null)
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self::$instance = new ThumbnailsManager();
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return self::$instance;
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}
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public function getThumbnail($path) {
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$gallery_storage = \OCP\Files::getStorage('gallery');
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if ($gallery_storage->file_exists($path)) {
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return new \OC_Image($gallery_storage->getLocalFile($path));
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}
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if (!\OC_Filesystem::file_exists($path)) {
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\OC_Log::write(self::TAG, 'File '.$path.' don\'t exists', \OC_Log::WARN);
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return false;
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}
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$image = new \OC_Image();
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$image->loadFromFile(\OC_Filesystem::getLocalFile($path));
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if (!$image->valid()) return false;
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$image->fixOrientation();
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$ret = $image->preciseResize( floor((self::THUMBNAIL_HEIGHT*$image->width())/$image->height()), self::THUMBNAIL_HEIGHT );
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if (!$ret) {
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\OC_Log::write(self::TAG, 'Couldn\'t resize image', \OC_Log::ERROR);
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unset($image);
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return false;
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}
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$l = $gallery_storage->getLocalFile($path);
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$image->save($l);
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return $image;
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}
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public function getThumbnailWidth($image) {
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return floor((self::THUMBNAIL_HEIGHT*$image->widthTopLeft())/$image->heightTopLeft());
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}
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public function getThumbnailInfo($path) {
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$arr = DatabaseManager::getInstance()->getFileData($path);
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if (!$arr) {
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if (!\OC_Filesystem::file_exists($path)) {
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\OC_Log::write(self::TAG, 'File '.$path.' don\'t exists', \OC_Log::WARN);
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return false;
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}
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$image = new \OC_Image();
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$image->loadFromFile(\OC_Filesystem::getLocalFile($path));
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if (!$image->valid()) {
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return false;
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}
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$arr = DatabaseManager::getInstance()->setFileData($path, $this->getThumbnailWidth($image), self::THUMBNAIL_HEIGHT);
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}
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$ret = array('filepath' => $arr['path'],
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'width' => $arr['width'],
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'height' => $arr['height']);
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return $ret;
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}
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public function delete($path) {
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$thumbnail_storage = \OCP\Files::getStorage('gallery');
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if ($thumbnail_storage->file_exists($path)) {
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$thumbnail_storage->unlink($path);
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}
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}
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private function __construct() {}
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}
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