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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2018, Michael Weimann <mail@michael-weimann.eu>
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Joas Schilling <coding@schilljs.com>
* @author Michael Weimann <mail@michael-weimann.eu>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OC\Avatar;
use OC\NotSquareException;
use OC\User\User;
use OCP\Files\NotFoundException;
use OCP\Files\NotPermittedException;
use OCP\Files\SimpleFS\ISimpleFile;
use OCP\Files\SimpleFS\ISimpleFolder;
use OCP\IConfig;
use OCP\IImage;
use OCP\IL10N;
use Psr\Log\LoggerInterface;
/**
* This class represents a registered user's placeholder avatar.
*
* It generates an image based on the user's initials and caches it on storage
* for faster retrieval, unlike the GuestAvatar.
*/
class PlaceholderAvatar extends Avatar {
/** @var ISimpleFolder */
private $folder;
/** @var User */
private $user;
/**
* UserAvatar constructor.
*
* @param IConfig $config The configuration
* @param ISimpleFolder $folder The avatar files folder
* @param IL10N $l The localization helper
* @param User $user The user this class manages the avatar for
* @param LoggerInterface $logger The logger
*/
public function __construct(
ISimpleFolder $folder,
$user,
LoggerInterface $logger) {
parent::__construct($logger);
$this->folder = $folder;
$this->user = $user;
}
/**
* Check if an avatar exists for the user
*
* @return bool
*/
public function exists() {
return true;
}
/**
* 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) {
// unimplemented for placeholder avatars
}
/**
* Removes the users avatar.
*/
public function remove(bool $silent = false) {
$avatars = $this->folder->getDirectoryListing();
foreach ($avatars as $avatar) {
$avatar->delete();
}
}
/**
* Returns the avatar for an user.
*
* If there is no avatar file yet, one is generated.
*
* @param int $size
* @return ISimpleFile
* @throws NotFoundException
* @throws \OCP\Files\NotPermittedException
* @throws \OCP\PreConditionNotMetException
*/
public function getFile($size) {
$size = (int) $size;
$ext = 'png';
if ($size === -1) {
$path = 'avatar-placeholder.' . $ext;
} else {
$path = 'avatar-placeholder.' . $size . '.' . $ext;
}
try {
$file = $this->folder->getFile($path);
} catch (NotFoundException $e) {
if ($size <= 0) {
throw new NotFoundException;
}
if (!$data = $this->generateAvatarFromSvg($size)) {
$data = $this->generateAvatar($this->getDisplayName(), $size);
}
try {
$file = $this->folder->newFile($path);
$file->putContent($data);
} catch (NotPermittedException $e) {
$this->logger->error('Failed to save avatar placeholder for ' . $this->user->getUID());
throw new NotFoundException();
}
}
return $file;
}
/**
* Returns the user display name.
*
* @return string
*/
public function getDisplayName(): string {
return $this->user->getDisplayName();
}
/**
* Handles user changes.
*
* @param string $feature The changed feature
* @param mixed $oldValue The previous value
* @param mixed $newValue The new value
* @throws NotPermittedException
* @throws \OCP\PreConditionNotMetException
*/
public function userChanged($feature, $oldValue, $newValue) {
$this->remove();
}
/**
* Check if the avatar of a user is a custom uploaded one
*
* @return bool
*/
public function isCustomAvatar(): bool {
return false;
}
}
|
