144 lines
4.5 KiB
PHP
144 lines
4.5 KiB
PHP
<?php
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/**
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* ownCloud - gallery application
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*
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* @author Bartek Przybylski
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* @copyright 2012 Bartek Przybylski <bartek@alefzero.eu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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class OC_Gallery_Scanner {
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public static function getGalleryRoot() {
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return OC_Preferences::getValue(OC_User::getUser(), 'gallery', 'root', '/');
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}
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public static function getScanningRoot() {
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return OC_Filesystem::getRoot().self::getGalleryRoot();
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}
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public static function cleanUp() {
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OC_Gallery_Album::cleanup();
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}
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public static function createName($name) {
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$name = basename($name);
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return $name == '.' ? '' : $name;
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}
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// Scan single dir relative to gallery root
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public static function scan($eventSource) {
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$paths = self::findPaths();
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$eventSource->send('count', count($paths)+1);
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$owner = OC_User::getUser();
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foreach ($paths as $path) {
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$name = self::createName($path);
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$images = self::findFiles($path);
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$result = OC_Gallery_Album::find($owner, null, $path);
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// don't duplicate galleries with same path
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if (!($albumId = $result->fetchRow())) {
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OC_Gallery_Album::create($owner, $name, $path);
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$result = OC_Gallery_Album::find($owner, $name, $path);
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$albumId = $result->fetchRow();
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}
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$albumId = $albumId['album_id'];
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foreach ($images as $img) {
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$result = OC_Gallery_Photo::find($albumId, $img);
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if (!$result->fetchRow())
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OC_Gallery_Photo::create($albumId, $img);
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}
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if (count($images))
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self::createThumbnails($name, $images);
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$eventSource->send('scanned', '');
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}
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self::createIntermediateAlbums();
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$eventSource->send('scanned', '');
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$eventSource->send('done', 1);
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}
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public static function createThumbnails($albumName, $files) {
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// create gallery thumbnail
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$file_count = min(count($files), 10);
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$thumbnail = imagecreatetruecolor($file_count*200, 200);
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for ($i = 0; $i < $file_count; $i++) {
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$image = OC_Gallery_Photo::getThumbnail($files[$i]);
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if ($image && $image->valid()) {
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imagecopyresampled($thumbnail, $image->resource(), $i*200, 0, 0, 0, 200, 200, 200, 200);
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$image->destroy();
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}
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}
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imagepng($thumbnail, OC_Config::getValue("datadirectory").'/'. OC_User::getUser() .'/gallery/' . $albumName.'.png');
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imagedestroy($thumbnail);
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}
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public static function createIntermediateAlbums() {
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$paths = self::findPaths();
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for ($i = 1; $i < count($paths); $i++) {
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$prevLen = strlen($paths[$i-1]);
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if (strncmp($paths[$i-1], $paths[$i], $prevLen)==0) {
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$s = substr($paths[$i], $prevLen);
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if (strrpos($s, '/') != 0) {
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$a = explode('/', trim($s, '/'));
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$p = $paths[$i-1];
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foreach ($a as $e) {
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$p .= ($p == '/'?'':'/').$e;
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OC_Gallery_Album::create(OC_User::getUser(), $e, $p);
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$arr = OC_FileCache::searchByMime('image','', OC_Filesystem::getRoot().$p);
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$step = floor(count($arr)/10);
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if ($step == 0) $step = 1;
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$na = array();
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for ($j = 0; $j < count($arr); $j+=$step) {
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$na[] = $p.$arr[$j];
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}
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if (count($na))
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self::createThumbnails($e, $na);
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}
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}
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}
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}
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}
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public static function isPhoto($filename) {
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$ext = strtolower(substr($filename, strrpos($filename, '.')+1));
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return $ext=='png' || $ext=='jpeg' || $ext=='jpg' || $ext=='gif';
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}
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public static function findFiles($path) {
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$images = OC_FileCache::searchByMime('image','', OC_Filesystem::getRoot().$path);
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$new = array();
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foreach ($images as $i)
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if (strpos($i, '/',1) === FALSE)
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$new[] = $path.$i;
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return $new;
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}
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public static function findPaths() {
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$images=OC_FileCache::searchByMime('image','', self::getScanningRoot());
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$paths=array();
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foreach($images as $image){
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$path=dirname($image);
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$path = self::getGalleryRoot().($path=='.'?'':$path);
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if ($path !== '/') $path=rtrim($path,'/');
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if(array_search($path,$paths)===false){
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$paths[]=$path;
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}
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}
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sort($paths);
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return $paths;
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}
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}
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