585 lines
18 KiB
PHP
585 lines
18 KiB
PHP
<?php
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declare(strict_types = 1);
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// {{{ License
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// This file is part of GNU social - https://www.gnu.org/software/social
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//
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// GNU social is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// GNU social is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
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// }}}
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namespace App\Entity;
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use App\Core\Cache;
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use App\Core\DB\DB;
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use App\Core\Entity;
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use App\Core\Event;
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use App\Core\Router\Router;
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use App\Util\Exception\BugFoundException;
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use App\Util\Exception\NicknameException;
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use App\Util\Exception\NotFoundException;
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use App\Util\Formatting;
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use App\Util\Nickname;
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use Component\Avatar\Avatar;
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use Component\Language\Entity\ActorLanguage;
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use Component\Language\Entity\Language;
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use Component\Subscription\Entity\ActorSubscription;
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use Functional as F;
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/**
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* Entity for actors
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*
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* @category DB
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* @package GNUsocial
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*
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* @author Zach Copley <zach@status.net>
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* @copyright 2010 StatusNet Inc.
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* @author Mikael Nordfeldth <mmn@hethane.se>
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* @copyright 2009-2014 Free Software Foundation, Inc http://www.fsf.org
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* @author Hugo Sales <hugo@hsal.es>
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* @copyright 2020-2021 Free Software Foundation, Inc http://www.fsf.org
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
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class Actor extends Entity
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{
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// {{{ Autocode
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// @codeCoverageIgnoreStart
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private int $id;
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private string $nickname;
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private ?string $fullname = null;
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private int $roles;
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private int $type;
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private ?string $homepage = null;
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private ?string $bio = null;
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private ?string $location = null;
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private ?float $lat = null;
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private ?float $lon = null;
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private ?int $location_id = null;
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private ?int $location_service = null;
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private bool $is_local;
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private \DateTimeInterface $created;
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private \DateTimeInterface $modified;
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public function setId(int $id): self
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{
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$this->id = $id;
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return $this;
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}
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public function getId(): int
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{
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return $this->id;
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}
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public function setNickname(string $nickname): self
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{
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$this->nickname = \mb_substr($nickname, 0, 64);
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return $this;
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}
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public function getNickname(): string
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{
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return $this->nickname;
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}
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public function setFullname(?string $fullname): self
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{
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$this->fullname = $fullname;
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return $this;
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}
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public function getFullname(): ?string
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{
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return $this->fullname;
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}
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public function setRoles(int $roles): self
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{
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$this->roles = $roles;
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return $this;
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}
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public function getRoles(): int
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{
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return $this->roles;
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}
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public function setType(int $type): self
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{
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$this->type = $type;
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return $this;
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}
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public function getType(): int
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{
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return $this->type;
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}
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public function setHomepage(?string $homepage): self
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{
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$this->homepage = $homepage;
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return $this;
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}
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public function getHomepage(): ?string
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{
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return $this->homepage;
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}
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public function setBio(?string $bio): self
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{
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$this->bio = $bio;
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return $this;
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}
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public function getBio(): ?string
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{
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return $this->bio;
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}
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public function setLocation(?string $location): self
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{
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$this->location = $location;
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return $this;
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}
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public function getLocation(): ?string
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{
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return $this->location;
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}
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public function setLat(?float $lat): self
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{
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$this->lat = $lat;
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return $this;
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}
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public function getLat(): ?float
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{
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return $this->lat;
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}
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public function setLon(?float $lon): self
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{
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$this->lon = $lon;
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return $this;
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}
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public function getLon(): ?float
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{
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return $this->lon;
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}
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public function setLocationId(?int $location_id): self
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{
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$this->location_id = $location_id;
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return $this;
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}
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public function getLocationId(): ?int
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{
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return $this->location_id;
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}
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public function setLocationService(?int $location_service): self
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{
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$this->location_service = $location_service;
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return $this;
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}
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public function getLocationService(): ?int
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{
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return $this->location_service;
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}
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public function setIsLocal(bool $is_local): self
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{
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$this->is_local = $is_local;
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return $this;
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}
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public function getIsLocal(): bool
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{
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return $this->is_local;
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}
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public function setCreated(\DateTimeInterface $created): self
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{
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$this->created = $created;
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return $this;
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}
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public function getCreated(): \DateTimeInterface
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{
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return $this->created;
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}
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public function setModified(\DateTimeInterface $modified): self
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{
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$this->modified = $modified;
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return $this;
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}
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public function getModified(): \DateTimeInterface
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{
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return $this->modified;
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}
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// @codeCoverageIgnoreEnd
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// }}} Autocode
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public const PERSON = 1;
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public const GROUP = 2;
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public const ORGANISATION = 3;
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public const BOT = 4;
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public static function cacheKeys(int|self $actor_id, mixed $other = null): array
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{
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$actor_id = \is_int($actor_id) ? $actor_id : $actor_id->getId();
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return [
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'id' => "actor-id-{$actor_id}",
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'nickname' => "actor-nickname-id-{$actor_id}",
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'fullname' => "actor-fullname-id-{$actor_id}",
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'self-tags' => "actor-self-tags-{$actor_id}",
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'circles' => "actor-circles-{$actor_id}",
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'subscribers' => "subscribers-{$actor_id}",
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'subscribed' => "subscribed-{$actor_id}",
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'relative-nickname' => "actor-{$actor_id}-relative-nickname-{$other}", // $other is $nickname
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'can-admin' => "actor-{$actor_id}-can-admin-{$other}", // $other is an actor id
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];
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}
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public function getLocalUser(): ?LocalUser
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{
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if ($this->getIsLocal()) {
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return DB::findOneBy('local_user', ['id' => $this->getId()]);
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} else {
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throw new NotFoundException('This is a remote actor.');
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}
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}
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public function getAvatarUrl(string $size = 'medium')
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{
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return Avatar::getUrl($this->getId(), $size);
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}
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public function getAvatarDimensions(string $size = 'medium')
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{
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return Avatar::getDimensions($this->getId(), $size);
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}
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public static function getById(int $id): ?self
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{
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return Cache::get(self::cacheKeys($id)['id'], fn() => DB::find('actor', ['id' => $id]));
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}
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public static function getNicknameById(int $id): string
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{
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return Cache::get(self::cacheKeys($id)['nickname'], fn() => self::getById($id)->getNickname());
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}
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public static function getFullnameById(int $id): ?string
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{
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return Cache::get(self::cacheKeys($id)['fullname'], fn() => self::getById($id)->getFullname());
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}
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/**
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* For consistency with Note
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*/
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public function getActorId(): int
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{
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return $this->getId();
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}
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/**
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* @return array ActorTag[] Self Tag Circles of which this actor is a member
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*/
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public function getSelfTags(): array
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{
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return Cache::getList(
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self::cacheKeys($this->getId())['self-tags'],
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fn() => DB::findBy('actor_tag', ['tagger' => $this->getId(), 'tagged' => $this->getId()], order_by: ['modified' => 'DESC']),
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);
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}
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/**
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* @return array ActorCircle[]
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*/
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public function getCircles(): array
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{
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return Cache::getList(
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self::cacheKeys($this->getId())['circles'],
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fn() => DB::findBy('actor_circle', ['tagger' => $this->getId()]),
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);
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}
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private function getSubCount(string $which, string $column): int
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{
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return Cache::get(
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self::cacheKeys($this->getId())[$which],
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fn() => DB::count(ActorSubscription::class, [$column => $this->getId()]) - ($this->getIsLocal() ? 1 : 0)
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);
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}
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public function getSubscribersCount(): int
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{
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return $this->getSubCount(which: 'subscribers', column: 'subscribed_id');
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}
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public function getSubscribedCount(): int
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{
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return $this->getSubCount(which: 'subscribed', column: 'subscriber_id');
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}
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public function getSubscriptions(): array
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{
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return DB::dql(<<<EOF
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SELECT a FROM actor AS a
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INNER JOIN actor_subscription AS s
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WITH a.id = s.subscribed_id
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WHERE s.subscriber_id = :self AND a.id != :self
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EOF, ['self' => $this->getId()]);
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}
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public function getSubscribers(): array
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{
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return DB::dql(<<<EOF
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SELECT a FROM actor AS a
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INNER JOIN actor_subscription AS s
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WITH a.id = s.subscriber_id
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WHERE s.subscribed_id = :self AND a.id != :self
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EOF, ['self' => $this->getId()]);
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}
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public function getSubscriptionsUrl(): string
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{
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if ($this->getIsLocal()) {
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return Router::url('actor_subscriptions_nickname', ['nickname' => $this->getNickname()]);
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} else {
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return Router::url('actor_subscriptions_id', ['id' => $this->getId()]);
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}
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}
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public function getSubscribersUrl(): string
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{
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if ($this->getIsLocal()) {
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return Router::url('actor_subscribers_nickname', ['nickname' => $this->getNickname()]);
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} else {
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return Router::url('actor_subscribers_id', ['id' => $this->getId()]);
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}
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}
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/**
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* Resolve an ambiguous nickname reference, checking in following order:
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* - Actors that $sender subscribes to
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* - Actors that subscribe to $sender
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* - Any Actor
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*
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* @param string $nickname validated nickname of
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*
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* @throws NicknameException
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*/
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public function findRelativeActor(string $nickname): ?self
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{
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// Will throw exception on invalid input.
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$nickname = Nickname::normalize($nickname, check_already_used: false);
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return Cache::get(
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self::cacheKeys($this->getId(), $nickname)['relative-nickname'],
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fn () => DB::dql(
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<<<'EOF'
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SELECT a FROM actor AS a WHERE
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a.id IN (SELECT sa.subscribed_id FROM actor_subscription sa JOIN actor aa WITH sa.subscribed_id = aa.id WHERE sa.subscriber_id = :actor_id AND aa.nickname = :nickname) OR
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a.id IN (SELECT sb.subscriber_id FROM actor_subscription sb JOIN actor ab WITH sb.subscriber_id = ab.id WHERE sb.subscribed_id = :actor_id AND ab.nickname = :nickname) OR
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a.nickname = :nickname
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EOF,
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['nickname' => $nickname, 'actor_id' => $this->getId()],
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['limit' => 1],
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)[0] ?? null,
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);
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}
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/**
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* Get a URI for this actor, i.e. a unique and stable identifier, using the ID
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*/
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public function getUri(int $type = Router::ABSOLUTE_URL): string
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{
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$uri = null;
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if (Event::handle('StartGetActorUri', [$this, $type, &$uri]) === Event::next) {
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switch ($this->type) {
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case self::PERSON:
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case self::ORGANISATION:
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case self::BOT:
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case self::GROUP:
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$uri = Router::url('actor_view_id', ['id' => $this->getId()], $type);
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break;
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default:
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throw new BugFoundException('Actor type added but `Actor::getUri` was not updated');
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}
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Event::handle('EndGetActorUri', [$this, $type, &$uri]);
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}
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return $uri;
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}
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/**
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* Get a URL for this actor, i.e. a user friendly URL, using the nickname
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*/
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public function getUrl(int $type = Router::ABSOLUTE_URL): string
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{
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if ($this->getIsLocal()) {
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$url = null;
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if (Event::handle('StartGetActorUrl', [$this, $type, &$url]) === Event::next) {
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switch ($this->type) {
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case self::PERSON:
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case self::ORGANISATION:
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case self::BOT:
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$url = Router::url('actor_view_nickname', ['nickname' => $this->getNickname()], $type);
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break;
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case self::GROUP:
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$url = Router::url('group_actor_view_nickname', ['nickname' => $this->getNickname()], $type);
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break;
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default:
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throw new BugFoundException('Actor type added but `Actor::getUrl` was not updated');
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}
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Event::handle('EndGetActorUrl', [$this, $type, &$url]);
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}
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} else {
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return Router::url('actor_view_id', ['id' => $this->getId()], $type);
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}
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return $url;
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}
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public function getAliases(): array
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{
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return array_keys($this->getAliasesWithIDs());
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}
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public function getAliasesWithIDs(): array
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{
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$aliases = [];
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$aliases[$this->getUri(Router::ABSOLUTE_URL)] = $this->getId();
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$aliases[$this->getUrl(Router::ABSOLUTE_URL)] = $this->getId();
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return $aliases;
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}
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public function getTopLanguage(): Language
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{
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return ActorLanguage::getActorLanguages($this, context: null)[0];
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}
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/**
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* Get the most appropriate language for $this to use when
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* referring to $context (a reply or a group, for instance)
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*
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* @return Language[]
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*/
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public function getPreferredLanguageChoices(?self $context = null): array
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{
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$langs = ActorLanguage::getActorLanguages($this, context: $context);
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return array_merge(...F\map($langs, fn ($l) => $l->toChoiceFormat()));
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}
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public function isVisibleTo(null|LocalUser|self $other): bool
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{
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return true; // TODO
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}
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/**
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* Check whether $this has permission for performing actions on behalf of $other
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*/
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public function canAdmin(self $other): bool
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{
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if ($this->getIsLocal()) {
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switch ($other->getType()) {
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case self::PERSON:
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return $this->getId() === $other->getId();
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case self::GROUP:
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return Cache::get(
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self::cacheKeys($this->getId(), $other->getId())['can-admin'],
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function () use ($other) {
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try {
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return DB::findOneBy('group_member', ['group_id' => $other->getId(), 'actor_id' => $this->getId()])->getIsAdmin();
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} catch (NotFoundException) {
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return false;
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}
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},
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);
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default:
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return false;
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}
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} else {
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$canAdmin = false;
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Event::handle('FreeNetworkActorCanAdmin', [$this, $other, &$canAdmin]);
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return $canAdmin;
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}
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}
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/**
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* @method bool isPerson()
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* @method bool isGroup()
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* @method bool isOrganization()
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* @method bool isBot()
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*/
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public function __call(string $name, array $arguments): mixed
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{
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if (Formatting::startsWith($name, 'is')) {
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$type = Formatting::removePrefix($name, 'is');
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$const = self::class . '::' . mb_strtoupper($type);
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if (\defined($const)) {
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return $this->type === \constant($const);
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} else {
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throw new BugFoundException("Actor cannot be a '{$type}', check your spelling");
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}
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} else {
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return parent::__call($name, $arguments);
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}
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}
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public static function schemaDef(): array
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{
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return [
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'name' => 'actor',
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'description' => 'local and remote users, groups and bots are actors, for instance',
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'fields' => [
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'id' => ['type' => 'serial', 'not null' => true, 'description' => 'unique identifier'],
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'nickname' => ['type' => 'varchar', 'length' => 64, 'not null' => true, 'description' => 'nickname or username'],
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'fullname' => ['type' => 'text', 'description' => 'display name', 'default' => null],
|
|
'roles' => ['type' => 'int', 'not null' => true, 'description' => 'Bitmap of permissions this actor has'],
|
|
'type' => ['type' => 'int', 'not null' => true, 'description' => 'The type of actor (person, group, bot, etc)'],
|
|
'homepage' => ['type' => 'text', 'description' => 'identifying URL', 'default' => null],
|
|
'bio' => ['type' => 'text', 'description' => 'descriptive biography', 'default' => null],
|
|
'location' => ['type' => 'text', 'description' => 'physical location', 'default' => null],
|
|
'lat' => ['type' => 'numeric', 'precision' => 10, 'scale' => 7, 'description' => 'latitude', 'default' => null],
|
|
'lon' => ['type' => 'numeric', 'precision' => 10, 'scale' => 7, 'description' => 'longitude', 'default' => null],
|
|
'location_id' => ['type' => 'int', 'description' => 'location id if possible', 'default' => null],
|
|
'location_service' => ['type' => 'int', 'description' => 'service used to obtain location id', 'default' => null],
|
|
'is_local' => ['type' => 'bool', 'not null' => true, 'description' => 'Does this actor have a LocalUser associated'],
|
|
'created' => ['type' => 'datetime', 'not null' => true, 'default' => 'CURRENT_TIMESTAMP', 'description' => 'date this record was created'],
|
|
'modified' => ['type' => 'timestamp', 'not null' => true, 'default' => 'CURRENT_TIMESTAMP', 'description' => 'date this record was modified'],
|
|
],
|
|
'primary key' => ['id'],
|
|
'indexes' => [
|
|
'actor_nickname_idx' => ['nickname'],
|
|
],
|
|
'fulltext indexes' => [
|
|
'actor_fulltext_idx' => ['nickname', 'fullname', 'location', 'bio', 'homepage'],
|
|
],
|
|
];
|
|
}
|
|
}
|