nextcloud/apps/gallery/lib/hooks_handlers.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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OC_Hook::connect(OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_write, "OC_Gallery_Hooks_Handlers", "addPhotoFromPath");
OC_Hook::connect(OC_Filesystem::CLASSNAME, OC_Filesystem::signal_delete, "OC_Gallery_Hooks_Handlers", "removePhoto");
OC_Hook::connect(OC_Filesystem::CLASSNAME, OC_Filesystem::signal_post_rename, "OC_Gallery_Hooks_Handlers", "renamePhoto");
require_once(OC::$CLASSPATH['OC_Gallery_Album']);
require_once(OC::$CLASSPATH['OC_Gallery_Photo']);
class OC_Gallery_Hooks_Handlers {
private static $APP_TAG = "Gallery";
private static function isPhoto($filename) {
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OC_Log::write(self::$APP_TAG, "Checking file ".$filename." with mimetype ".OC_Filesystem::getMimeType($filename), OC_Log::DEBUG);
if (substr(OC_Filesystem::getMimeType($filename), 0, 6) == "image/")
return true;
return false;
}
private static function directoryContainsPhotos($dirpath) {
$dirhandle = opendir(OC::$CONFIG_DATADIRECTORY.$dirpath);
if ($dirhandle != FALSE) {
while (($filename = readdir($dirhandle)) != FALSE) {
if ($filename[0] == '.') continue;
if (self::isPhoto($dirpath.'/'.$filename)) return true;
}
}
return false;
}
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private static function createAlbum($path) {
$new_album_name = trim(str_replace('/', '.', $path), '.');
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if ($new_album_name == '')
$new_album_name = 'main';
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OC_Log::write(self::$APP_TAG, 'Creating new album '.$new_album_name, OC_Log::DEBUG);
OC_Gallery_Album::create(OC_User::getUser(), $new_album_name, $path);
return OC_Gallery_Album::find(OC_User::getUser(), null, $path);
}
public static function addPhotoFromPath($params) {
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$fullpath = $params[OC_Filesystem::signal_param_path];
if (!self::isPhoto($fullpath)) return;
OC_Log::write(self::$APP_TAG, 'Adding file with path '. $fullpath, OC_Log::DEBUG);
$path = substr($fullpath, 0, strrpos($fullpath, '/'));
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if ($path == '') $path = '/';
$album = OC_Gallery_Album::find(OC_User::getUser(), null, $path);
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if ($album->numRows() == 0) {
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$album = self::createAlbum($path);
}
$album = $album->fetchRow();
$albumId = $album['album_id'];
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$photo = OC_Gallery_Photo::find($albumId, $fullpath);
if ($photo->numRows() == 0) { // don't duplicate photo entries
OC_Log::write(self::$APP_TAG, 'Adding new photo to album', OC_Log::DEBUG);
OC_Gallery_Photo::create($albumId, $fullpath);
}
}
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public static function removePhoto($params) {
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$path = $params[OC_Filesystem::signal_param_path];
if (OC_Filesystem::is_dir($path) && self::directoryContainsPhotos($path)) {
OC_Gallery_Album::removeByPath($path, OC_User::getUser());
} elseif (self::isPhoto($path)) {
OC_Gallery_Photo::removeByPath($path);
}
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}
public static function renamePhoto($params) {
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$oldpath = $params[OC_Filesystem::signal_param_oldpath];
$newpath = $params[OC_Filesystem::signal_param_newpath];
if (OC_Filesystem::is_dir($newpath) && self::directoryContainsPhotos($newpath)) {
OC_Gallery_Album::changePath($oldpath, $newpath, OC_User::getUser());
} elseif (!self::isPhoto($newpath)) {
$olddir = substr($oldpath, 0, strrpos($oldpath, '/'));
$newdir = substr($newpath, 0, strrpos($newpath, '/'));
if ($olddir == '') $olddir = '/';
if ($newdir == '') $newdir = '/';
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if (!self::isPhoto($newpath)) return;
OC_Log::write(self::$APP_TAG, 'Moving photo from '.$oldpath.' to '.$newpath, OC_Log::DEBUG);
$album;
$newAlbumId;
$oldAlbumId;
if ($olddir == $newdir) {
// album changing is not needed
$album = OC_Gallery_Album::find(OC_User::getUser(), null, $olddir);
if ($album->numRows() == 0) {
$album = self::createAlbum($newdir);
}
$album = $album->fetchRow();
$newAlbumId = $oldAlbumId = $album['album_id'];
} else {
$newalbum = OC_Gallery_Album::find(OC_User::getUser(), null, $newdir);
$oldalbum = OC_Gallery_Album::find(OC_User::getUser(), null, $olddir);
if ($newalbum->numRows() == 0) {
$newalbum = self::createAlbum($newdir);
}
$newalbum = $newalbum->fetchRow();
if ($oldalbum->numRows() == 0) {
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OC_Gallery_Photo::create($newalbum['album_id'], $newpath);
return;
}
$oldalbum = $oldalbum->fetchRow();
$newAlbumId = $newalbum['album_id'];
$oldAlbumId = $oldalbum['album_id'];
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}
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OC_Gallery_Photo::changePath($oldAlbumId, $newAlbumId, $oldpath, $newpath);
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}
}
}
?>