nextcloud/lib/private/avatar.php

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<?php
/**
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* @author Arthur Schiwon <blizzz@owncloud.com>
* @author Christopher Schäpers <kondou@ts.unde.re>
* @author Joas Schilling <nickvergessen@owncloud.com>
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* @author Lukas Reschke <lukas@owncloud.com>
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* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
* @author Robin McCorkell <rmccorkell@karoshi.org.uk>
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* @author Roeland Jago Douma <rullzer@owncloud.com>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @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/>
*
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*/
namespace OC;
use OCP\Files\Folder;
use OCP\Files\File;
use OCP\IL10N;
use OC_Image;
/**
* This class gets and sets users avatars.
*/
class Avatar implements \OCP\IAvatar {
/** @var Folder */
private $folder;
/** @var IL10N */
private $l;
/**
* constructor
*
* @param Folder $folder The folder where the avatars are
* @param IL10N $l
*/
public function __construct (Folder $folder, IL10N $l) {
$this->folder = $folder;
$this->l = $l;
}
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/**
* get the users avatar
* @param int $size size in px of the avatar, avatars are square, defaults to 64
* @return boolean|\OCP\IImage containing the avatar or false if there's no image
*/
public function get ($size = 64) {
if ($this->folder->nodeExists('avatar.jpg')) {
$ext = 'jpg';
} elseif ($this->folder->nodeExists('avatar.png')) {
$ext = 'png';
} else {
return false;
}
$avatar = new OC_Image();
if ($this->folder->nodeExists('avatar.' . $size . '.' . $ext)) {
/** @var File $node */
$node = $this->folder->get('avatar.' . $size . '.' . $ext);
$avatar->loadFromData($node->getContent());
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} else {
/** @var File $node */
$node = $this->folder->get('avatar.' . $ext);
$avatar->loadFromData($node->getContent());
if ($size > 0) {
$avatar->resize($size);
}
$this->folder->newFile('avatar.' . $size . '.' . $ext)->putContent($avatar->data());
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}
return $avatar;
}
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/**
* Check if an avatar exists for the user
*
* @return bool
*/
public function exists() {
return $this->folder->nodeExists('avatar.jpg') || $this->folder->nodeExists('avatar.png');
}
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/**
* sets the users avatar
* @param \OCP\IImage|resource|string $data An image object, imagedata or path to set a new avatar
* @throws \Exception if the provided file is not a jpg or png image
* @throws \Exception if the provided image is not valid
* @throws \OC\NotSquareException if the image is not square
* @return void
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*/
public function set ($data) {
if($data instanceOf \OCP\IImage) {
$img = $data;
$data = $img->data();
} else {
$img = new OC_Image($data);
}
$type = substr($img->mimeType(), -3);
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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 \OC\NotSquareException();
}
$this->remove();
$this->folder->newFile('avatar.'.$type)->putContent($data);
}
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/**
* remove the users avatar
* @return void
*/
public function remove () {
try {
$this->folder->get('avatar.jpg')->delete();
} catch (\OCP\Files\NotFoundException $e) {}
try {
$this->folder->get('avatar.png')->delete();
} catch (\OCP\Files\NotFoundException $e) {}
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}
}