nextcloud/apps/gallery/lib/scanner.php

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<?php
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/**
* ownCloud - gallery application
*
* @author Bartek Przybylski
* @copyright 2012 Bartek Przybylski bart.p.pl@gmail.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
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require_once('base.php'); // base lib
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require_once('images_utils.php');
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class OC_Gallery_Scanner {
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public static function scan($root) {
$albums = array();
self::scanDir($root, $albums);
return $albums;
}
public static function cleanUp() {
$stmt = OC_DB::prepare('DELETE FROM *PREFIX*gallery_albums');
$stmt->execute(array());
$stmt = OC_DB::prepare('DELETE FROM *PREFIX*gallery_photos');
$stmt->execute(array());
}
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public static function createName($name) {
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$root = OC_Preferences::getValue(OC_User::getUser(), 'gallery', 'root', '/');
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$name = str_replace('/', '.', str_replace(OC::$CONFIG_DATADIRECTORY, '', $name));
if (substr($name, 0, strlen($root)) == str_replace('/','.',$root)) {
$name = substr($name, strlen($root));
}
$name = ($name==='.') ? 'main' : trim($name,'.');
return $name;
}
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public static function scanDir($path, &$albums) {
$current_album = array('name'=> $path, 'imagesCount' => 0, 'images' => array());
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$current_album['name'] = self::createName($current_album['name']);
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if ($dh = OC_Filesystem::opendir($path)) {
while (($filename = readdir($dh)) !== false) {
$filepath = ($path[strlen($path)-1]=='/'?$path:$path.'/').$filename;
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if (substr($filename, 0, 1) == '.') continue;
if (self::isPhoto($path.'/'.$filename)) {
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$current_album['images'][] = $filepath;
}
}
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}
$current_album['imagesCount'] = count($current_album['images']);
$albums['imagesCount'] = $current_album['imagesCount'];
$albums['albumName'] = $current_album['name'];
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$result = OC_Gallery_Album::find(OC_User::getUser(), /*$current_album['name']*/ null, $path);
// don't duplicate galleries with same path (bug oc-33)
if ($result->numRows() == 0 && count($current_album['images'])) {
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OC_Gallery_Album::create(OC_User::getUser(), $current_album['name'], $path);
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$result = OC_Gallery_Album::find(OC_User::getUser(), $current_album['name']);
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}
$albumId = $result->fetchRow();
$albumId = $albumId['album_id'];
foreach ($current_album['images'] as $img) {
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$result = OC_Gallery_Photo::find($albumId, $img);
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if ($result->numRows() == 0) {
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OC_Gallery_Photo::create($albumId, $img);
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}
}
if (count($current_album['images'])) {
self::createThumbnail($current_album['name'],$current_album['images']);
}
}
public static function createThumbnail($albumName, $files) {
$file_count = min(count($files), 10);
$thumbnail = imagecreatetruecolor($file_count*200, 200);
for ($i = 0; $i < $file_count; $i++) {
$image = OC_Gallery_Photo::getThumbnail($files[$i]);
if ($image && $image->valid()) {
imagecopyresampled($thumbnail, $image->resource(), $i*200, 0, 0, 0, 200, 200, 200, 200);
}
}
imagepng($thumbnail, OC_Config::getValue("datadirectory").'/'. OC_User::getUser() .'/gallery/' . $albumName.'.png');
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}
public static function isPhoto($filename) {
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$ext = strtolower(substr($filename, strrpos($filename, '.')+1));
return $ext=='png' || $ext=='jpeg' || $ext=='jpg' || $ext=='gif';
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}
public static function find_paths($path) {
$ret = array();
$dirres;
$addpath = FALSE;
if (($dirres = OC_Filesystem::opendir($path)) == FALSE) return $ret;
while (($file = readdir($dirres)) != FALSE) {
if ($file[0] == '.') continue;
if (OC_Filesystem::is_dir($path.$file))
$ret = array_merge($ret, self::find_paths($path.$file.'/'));
if (self::isPhoto($path.$file)) $addpath = TRUE;
}
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if ($addpath) $ret[] = urlencode($path);
return $ret;
}
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}
?>