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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
* @author Christopher Schäpers <kondou@ts.unde.re>
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program 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 Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC;
use OC\User\User;
use OCP\Files\Folder;
use OCP\Files\File;
use OCP\Files\NotFoundException;
use OCP\Files\NotPermittedException;
use OCP\IAvatar;
use OCP\IImage;
use OCP\IL10N;
use OC_Image;
use OCP\ILogger;
/**
* This class gets and sets users avatars.
*/
class Avatar implements IAvatar {
/** @var Folder */
private $folder;
/** @var IL10N */
private $l;
/** @var User */
private $user;
/** @var ILogger */
private $logger;
/**
* constructor
*
* @param Folder $folder The folder where the avatars are
* @param IL10N $l
* @param User $user
* @param ILogger $logger
*/
public function __construct (Folder $folder, IL10N $l, $user, ILogger $logger) {
$this->folder = $folder;
$this->l = $l;
$this->user = $user;
$this->logger = $logger;
}
/**
* @inheritdoc
*/
public function get ($size = 64) {
try {
$file = $this->getFile($size);
} catch (NotFoundException $e) {
return false;
}
$avatar = new OC_Image();
$avatar->loadFromData($file->getContent());
return $avatar;
}
/**
* Check if an avatar exists for the user
*
* @return bool
*/
public function exists() {
return $this->folder->nodeExists('avatar.jpg') || $this->folder->nodeExists('avatar.png');
}
/**
* sets the users avatar
* @param IImage|resource|string $data An image object, imagedata or path to set a new avatar
* @throws \Exception if the provided file is not a jpg or png image
* @throws \Exception if the provided image is not valid
* @throws NotSquareException if the image is not square
* @return void
*/
public function set ($data) {
if($data instanceOf IImage) {
$img = $data;
$data = $img->data();
} else {
$img = new OC_Image($data);
}
$type = substr($img->mimeType(), -3);
if ($type === 'peg') {
$type = 'jpg';
}
if ($type !== 'jpg' && $type !== 'png') {
throw new \Exception($this->l->t("Unknown filetype"));
}
if (!$img->valid()) {
throw new \Exception($this->l->t("Invalid image"));
}
if (!($img->height() === $img->width())) {
throw new NotSquareException();
}
$this->remove();
$this->folder->newFile('avatar.'.$type)->putContent($data);
$this->user->triggerChange('avatar');
}
/**
* remove the users avatar
* @return void
*/
public function remove () {
$regex = '/^avatar\.([0-9]+\.)?(jpg|png)$/';
$avatars = $this->folder->getDirectoryListing();
foreach ($avatars as $avatar) {
if (preg_match($regex, $avatar->getName())) {
$avatar->delete();
}
}
$this->user->triggerChange('avatar');
}
/**
* @inheritdoc
*/
public function getFile($size) {
$ext = $this->getExtension();
if ($size === -1) {
$path = 'avatar.' . $ext;
} else {
$path = 'avatar.' . $size . '.' . $ext;
}
try {
$file = $this->folder->get($path);
} catch (NotFoundException $e) {
if ($size <= 0) {
throw new NotFoundException;
}
$avatar = new OC_Image();
/** @var File $file */
$file = $this->folder->get('avatar.' . $ext);
$avatar->loadFromData($file->getContent());
if ($size !== -1) {
$avatar->resize($size);
}
try {
$file = $this->folder->newFile($path);
$file->putContent($avatar->data());
} catch (NotPermittedException $e) {
$this->logger->error('Failed to save avatar for ' . $this->user->getUID());
}
}
return $file;
}
/**
* Get the extension of the avatar. If there is no avatar throw Exception
*
* @return string
* @throws NotFoundException
*/
private function getExtension() {
if ($this->folder->nodeExists('avatar.jpg')) {
return 'jpg';
} elseif ($this->folder->nodeExists('avatar.png')) {
return 'png';
}
throw new NotFoundException;
}
}
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