diff options
author | Vincent Petry <vincent@nextcloud.com> | 2021-03-25 12:21:03 +0100 |
---|---|---|
committer | Vincent Petry <vincent@nextcloud.com> | 2021-03-26 13:07:09 +0100 |
commit | bb008be28af2e7379883543d73c18f63680915a6 (patch) | |
tree | 86989d073d8eacc681d000cebc39ae968cc43586 /lib | |
parent | b66af8a4329852ee599438c5be74e9246b4e0a68 (diff) | |
download | nextcloud-server-bb008be28af2e7379883543d73c18f63680915a6.tar.gz nextcloud-server-bb008be28af2e7379883543d73c18f63680915a6.zip |
Added PlaceholderAvatar with own cached images
When avatar scope is private, the PlaceholderAvatar is used to deliver a
placeholder avatar based on the user's initials.
This was implemented as a separate class for now to avoid messing with
the existing UserAvatar implementation and its generated vs
non-generated logic.
Signed-off-by: Vincent Petry <vincent@nextcloud.com>
Diffstat (limited to 'lib')
-rw-r--r-- | lib/private/Avatar/AvatarManager.php | 17 | ||||
-rw-r--r-- | lib/private/Avatar/PlaceholderAvatar.php | 183 | ||||
-rw-r--r-- | lib/private/Avatar/UserAvatar.php | 1 |
3 files changed, 191 insertions, 10 deletions
diff --git a/lib/private/Avatar/AvatarManager.php b/lib/private/Avatar/AvatarManager.php index 03f3d89e5f6..92cd502dacb 100644 --- a/lib/private/Avatar/AvatarManager.php +++ b/lib/private/Avatar/AvatarManager.php @@ -122,7 +122,11 @@ class AvatarManager implements IAvatarManager { $requestingUser = $this->userSession->getUser(); } - $canShowRealAvatar = true; + try { + $folder = $this->appData->getFolder($userId); + } catch (NotFoundException $e) { + $folder = $this->appData->newFolder($userId); + } // requesting in public page if ($requestingUser === null) { @@ -132,18 +136,11 @@ class AvatarManager implements IAvatarManager { // v2-private scope hides the avatar from public access if ($avatarScope === IAccountManager::SCOPE_PRIVATE) { - // FIXME: guest avatar is re-generated every time, use a cache instead - // see how UserAvatar caches the generated one - return $this->getGuestAvatar($userId); + // use a placeholder avatar which caches the generated images + return new PlaceholderAvatar($folder, $user, $this->logger); } } - try { - $folder = $this->appData->getFolder($userId); - } catch (NotFoundException $e) { - $folder = $this->appData->newFolder($userId); - } - return new UserAvatar($folder, $this->l, $user, $this->logger, $this->config); } diff --git a/lib/private/Avatar/PlaceholderAvatar.php b/lib/private/Avatar/PlaceholderAvatar.php new file mode 100644 index 00000000000..5883fe531a3 --- /dev/null +++ b/lib/private/Avatar/PlaceholderAvatar.php @@ -0,0 +1,183 @@ +<?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 OCP\ILogger; + +/** + * 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 ILogger $logger The logger + */ + public function __construct( + ISimpleFolder $folder, + $user, + ILogger $logger) { + parent::__construct($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) { + $this->remove(); + } + + /** + * Check if the avatar of a user is a custom uploaded one + * + * @return bool + */ + public function isCustomAvatar(): bool { + return false; + } +} diff --git a/lib/private/Avatar/UserAvatar.php b/lib/private/Avatar/UserAvatar.php index f7ace429f7d..f47809425ed 100644 --- a/lib/private/Avatar/UserAvatar.php +++ b/lib/private/Avatar/UserAvatar.php @@ -270,6 +270,7 @@ class UserAvatar extends Avatar { throw new NotFoundException; } + // TODO: rework to integrate with the PlaceholderAvatar in a compatible way if ($this->folder->fileExists('generated')) { if (!$data = $this->generateAvatarFromSvg($size)) { $data = $this->generateAvatar($this->getDisplayName(), $size); |