forked from GNUsocial/gnu-social
		
	
		
			
				
	
	
		
			350 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			350 lines
		
	
	
		
			16 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 Plugin\Favourite;
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use App\Core\Cache;
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use App\Core\DB\DB;
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use App\Core\Event;
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use function App\Core\I18n\_m;
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use App\Core\Modules\NoteHandlerPlugin;
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use App\Core\Router\RouteLoader;
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use App\Core\Router\Router;
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use App\Entity\Activity;
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use App\Entity\Actor;
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use App\Entity\Feed;
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use App\Entity\LocalUser;
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use App\Entity\Note;
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use App\Util\Common;
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use App\Util\Nickname;
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use DateTime;
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use Plugin\Favourite\Entity\NoteFavourite as FavouriteEntity;
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use Symfony\Component\HttpFoundation\Request;
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class Favourite extends NoteHandlerPlugin
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{
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    /**
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     * Creates a new Favourite Entity, upon the given Actor performs a Favourite
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     * action on the given Note object
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     *
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     * A new notification is then handled, informing all interested Actors of this action
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     *
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     * @throws \App\Util\Exception\ServerException
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     * @throws \Doctrine\ORM\OptimisticLockException
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     * @throws \Doctrine\ORM\ORMException
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     * @throws \Doctrine\ORM\TransactionRequiredException
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     */
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    public static function favourNote(int $note_id, int $actor_id, string $source = 'web'): ?Activity
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    {
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        $opts                  = ['note_id' => $note_id, 'actor_id' => $actor_id];
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        $note_already_favoured = Cache::get(
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            FavouriteEntity::cacheKeys($note_id, $actor_id)['favourite'],
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            fn () => DB::findOneBy('note_favourite', $opts, return_null: true),
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        );
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        $activity = null;
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        if (\is_null($note_already_favoured)) {
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            DB::persist(FavouriteEntity::create($opts));
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            Cache::delete(FavouriteEntity::cacheKeys($note_id, $actor_id)['favourite']);
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            $activity = Activity::create([
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                'actor_id'    => $actor_id,
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                'verb'        => 'favourite',
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                'object_type' => 'note',
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                'object_id'   => $note_id,
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                'source'      => $source,
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            ]);
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            DB::persist($activity);
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            Event::handle('NewNotification', [$actor = Actor::getById($actor_id), $activity, [], _m('{nickname} favoured note {note_id}.', ['{nickname}' => $actor->getNickname(), '{note_id}' => $activity->getObjectId()])]);
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        }
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        return $activity;
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    }
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    /**
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     * Removes the Favourite Entity created beforehand, by the same Actor, and on the same Note
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     *
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     * Informs all interested Actors of this action, handling out the NewNotification event
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     *
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     * @throws \App\Util\Exception\ServerException
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     * @throws \Doctrine\ORM\OptimisticLockException
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     * @throws \Doctrine\ORM\ORMException
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     * @throws \Doctrine\ORM\TransactionRequiredException
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     */
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    public static function unfavourNote(int $note_id, int $actor_id, string $source = 'web'): ?Activity
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    {
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        $note_already_favoured = Cache::get(
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            FavouriteEntity::cacheKeys($note_id, $actor_id)['favourite'],
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            fn () => DB::findOneBy('note_favourite', ['note_id' => $note_id, 'actor_id' => $actor_id], return_null: true),
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        );
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        $activity = null;
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        if (!\is_null($note_already_favoured)) {
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            DB::remove($note_already_favoured);
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            Cache::delete(FavouriteEntity::cacheKeys($note_id, $actor_id)['favourite']);
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            $favourite_activity = DB::findBy('activity', ['verb' => 'favourite', 'object_type' => 'note', 'actor_id' => $actor_id, 'object_id' => $note_id], order_by: ['created' => 'DESC'])[0];
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            $activity           = Activity::create([
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                'actor_id'    => $actor_id,
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                'verb'        => 'undo', // 'undo_favourite',
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                'object_type' => 'activity', // 'note',
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                'object_id'   => $favourite_activity->getId(), // $note_id,
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                'source'      => $source,
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            ]);
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            DB::persist($activity);
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            Event::handle('NewNotification', [$actor = Actor::getById($actor_id), $activity, [], _m('{nickname} unfavoured note {note_id}.', ['{nickname}' => $actor->getNickname(), '{note_id}' => $activity->getObjectId()])]);
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        }
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        return $activity;
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    }
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    /**
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     * HTML rendering event that adds the favourite form as a note
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     * action, if a user is logged in
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     *
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     * @throws \Doctrine\ORM\OptimisticLockException
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     * @throws \Doctrine\ORM\ORMException
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     * @throws \Doctrine\ORM\TransactionRequiredException
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     *
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     * @return bool Event hook
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     */
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    public function onAddNoteActions(Request $request, Note $note, array &$actions): bool
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    {
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        if (\is_null($user = Common::user())) {
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            return Event::next;
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        }
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        // If note is favourite, "is_favourite" is 1
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        $opts         = ['note_id' => $note->getId(), 'actor_id' => $user->getId()];
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        $is_favourite = !\is_null(
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            Cache::get(
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            FavouriteEntity::cacheKeys($note->getId(), $user->getId())['favourite'],
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            fn () => DB::findOneBy('note_favourite', $opts, return_null: true),
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        ),
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        );
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        // Generating URL for favourite action route
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        $args                 = ['id' => $note->getId()];
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        $type                 = Router::ABSOLUTE_PATH;
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        $favourite_action_url = $is_favourite
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            ? Router::url('favourite_remove', $args, $type)
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            : Router::url('favourite_add', $args, $type);
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        $query_string = $request->getQueryString();
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        // Concatenating get parameter to redirect the user to where he came from
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        $favourite_action_url .= '?from=' . urlencode($request->getRequestUri());
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        $extra_classes    = $is_favourite ? 'note-actions-set' : 'note-actions-unset';
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        $favourite_action = [
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            'url'     => $favourite_action_url,
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            'title'   => $is_favourite ? 'Remove this note from favourites' : 'Favourite this note!',
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            'classes' => "button-container favourite-button-container {$extra_classes}",
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            'id'      => 'favourite-button-container-' . $note->getId(),
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        ];
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        $actions[] = $favourite_action;
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        return Event::next;
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    }
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    public function onAppendCardNote(array $vars, array &$result)
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    {
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        // If note is the original and user isn't the one who repeated, append on end "user repeated this"
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        // If user is the one who repeated, append on end "you repeated this, remove repeat?"
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        $check_user = !\is_null(Common::user());
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        // The current Note being rendered
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        $note = $vars['note'];
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        // Will have actors array, and action string
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        // Actors are the subjects, action is the verb (in the final phrase)
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        $favourite_actors = FavouriteEntity::getNoteFavouriteActors($note);
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        if (\count($favourite_actors) < 1) {
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            return Event::next;
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        }
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        // Filter out multiple replies from the same actor
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        $favourite_actors = array_unique($favourite_actors, \SORT_REGULAR);
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        $result[]         = ['actors' => $favourite_actors, 'action' => 'favourited'];
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        return Event::next;
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    }
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    /**
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     * Deletes every favourite entity in table related to a deleted Note
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     */
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    public function onNoteDeleteRelated(Note &$note, Actor $actor): bool
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    {
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        $note_favourites_list = FavouriteEntity::getNoteFavourites($note);
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        foreach ($note_favourites_list as $favourite_entity) {
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            DB::remove($favourite_entity);
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        }
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        return Event::next;
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    }
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    public function onAddRoute(RouteLoader $r): bool
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    {
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        // Add/remove note to/from favourites
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        $r->connect(id: 'favourite_add', uri_path: '/object/note/{id<\d+>}/favour', target: [Controller\Favourite::class, 'favouriteAddNote']);
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        $r->connect(id: 'favourite_remove', uri_path: '/object/note/{id<\d+>}/unfavour', target: [Controller\Favourite::class, 'favouriteRemoveNote']);
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        // View all favourites by actor id
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        $r->connect(id: 'favourites_view_by_actor_id', uri_path: '/actor/{id<\d+>}/favourites', target: [Controller\Favourite::class, 'favouritesViewByActorId']);
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        $r->connect(id: 'favourites_reverse_view_by_actor_id', uri_path: '/actor/{id<\d+>}/reverse_favourites', target: [Controller\Favourite::class, 'favouritesReverseViewByActorId']);
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        // View all favourites by nickname
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        $r->connect(id: 'favourites_view_by_nickname', uri_path: '/@{nickname<' . Nickname::DISPLAY_FMT . '>}/favourites', target: [Controller\Favourite::class, 'favouritesViewByActorNickname']);
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        $r->connect(id: 'favourites_reverse_view_by_nickname', uri_path: '/@{nickname<' . Nickname::DISPLAY_FMT . '>}/reverse_favourites', target: [Controller\Favourite::class, 'reverseFavouritesViewByActorNickname']);
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        return Event::next;
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    }
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    public function onCreateDefaultFeeds(int $actor_id, LocalUser $user, int &$ordering)
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    {
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        DB::persist(Feed::create([
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            'actor_id' => $actor_id,
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            'url'      => Router::url($route = 'favourites_view_by_nickname', ['nickname' => $user->getNickname()]),
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            'route'    => $route,
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            'title'    => _m('Favourites'),
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            'ordering' => $ordering++,
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        ]));
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        DB::persist(Feed::create([
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            'actor_id' => $actor_id,
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            'url'      => Router::url($route = 'favourites_reverse_view_by_nickname', ['nickname' => $user->getNickname()]),
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            'route'    => $route,
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            'title'    => _m('Reverse favourites'),
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            'ordering' => $ordering++,
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        ]));
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        return Event::next;
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    }
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    // ActivityPub handling and processing for Favourites is below
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    /**
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     * ActivityPub Inbox handler for Like and Undo Like activities
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     *
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     * @param Actor                                               $actor         Actor who authored the activity
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     * @param \ActivityPhp\Type\AbstractObject                    $type_activity Activity Streams 2.0 Activity
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     * @param mixed                                               $type_object   Activity's Object
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     * @param null|\Plugin\ActivityPub\Entity\ActivitypubActivity $ap_act        Resulting ActivitypubActivity
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     *
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     * @return bool Returns `Event::stop` if handled, `Event::next` otherwise
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     */
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    private function activitypub_handler(Actor $actor, \ActivityPhp\Type\AbstractObject $type_activity, mixed $type_object, ?\Plugin\ActivityPub\Entity\ActivitypubActivity &$ap_act): bool
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    {
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        if (!\in_array($type_activity->get('type'), ['Like', 'Undo'])) {
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            return Event::next;
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        }
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        if ($type_activity->get('type') === 'Like') { // Favourite
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            if ($type_object instanceof \ActivityPhp\Type\AbstractObject) {
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                if ($type_object->get('type') === 'Note') {
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                    $note_id = \Plugin\ActivityPub\Util\Model\Note::fromJson($type_object)->getId();
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                } else {
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                    return Event::next;
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                }
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            } elseif ($type_object instanceof Note) {
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                $note_id = $type_object->getId();
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            } else {
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                return Event::next;
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            }
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        } else { // Undo Favourite
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            if ($type_object instanceof \ActivityPhp\Type\AbstractObject) {
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                $ap_prev_favourite_act = \Plugin\ActivityPub\Util\Model\Activity::fromJson($type_object);
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                $prev_favourite_act    = $ap_prev_favourite_act->getActivity();
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                if ($prev_favourite_act->getVerb() === 'favourite' && $prev_favourite_act->getObjectType() === 'note') {
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                    $note_id = $prev_favourite_act->getObjectId();
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                } else {
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                    return Event::next;
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                }
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            } elseif ($type_object instanceof Activity) {
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                if ($type_object->getVerb() === 'favourite' && $type_object->getObjectType() === 'note') {
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                    $note_id = $type_object->getObjectId();
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                } else {
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                    return Event::next;
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                }
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            } else {
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                return Event::next;
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            }
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        }
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        if ($type_activity->get('type') === 'Like') {
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            $activity = self::favourNote($note_id, $actor->getId(), source: 'ActivityPub');
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        } else {
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            $activity = self::unfavourNote($note_id, $actor->getId(), source: 'ActivityPub');
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        }
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        if (!\is_null($activity)) {
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            // Store ActivityPub Activity
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            $ap_act = \Plugin\ActivityPub\Entity\ActivitypubActivity::create([
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                'activity_id'  => $activity->getId(),
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                'activity_uri' => $type_activity->get('id'),
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                'created'      => new DateTime($type_activity->get('published') ?? 'now'),
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                'modified'     => new DateTime(),
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            ]);
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            DB::persist($ap_act);
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        }
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        return Event::stop;
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    }
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    /**
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     * Convert an Activity Streams 2.0 Like or Undo Like into the appropriate Favourite and Undo Favourite entities
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     *
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     * @param Actor                                               $actor         Actor who authored the activity
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     * @param \ActivityPhp\Type\AbstractObject                    $type_activity Activity Streams 2.0 Activity
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     * @param \ActivityPhp\Type\AbstractObject                    $type_object   Activity Streams 2.0 Object
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     * @param null|\Plugin\ActivityPub\Entity\ActivitypubActivity $ap_act        Resulting ActivitypubActivity
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     *
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     * @return bool Returns `Event::stop` if handled, `Event::next` otherwise
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     */
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    public function onNewActivityPubActivity(Actor $actor, \ActivityPhp\Type\AbstractObject $type_activity, \ActivityPhp\Type\AbstractObject $type_object, ?\Plugin\ActivityPub\Entity\ActivitypubActivity &$ap_act): bool
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    {
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        return $this->activitypub_handler($actor, $type_activity, $type_object, $ap_act);
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    }
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    /**
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     * Convert an Activity Streams 2.0 formatted activity with a known object into Entities
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     *
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     * @param Actor                                               $actor         Actor who authored the activity
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     * @param \ActivityPhp\Type\AbstractObject                    $type_activity Activity Streams 2.0 Activity
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     * @param mixed                                               $type_object   Object
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     * @param null|\Plugin\ActivityPub\Entity\ActivitypubActivity $ap_act        Resulting ActivitypubActivity
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     *
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     * @return bool Returns `Event::stop` if handled, `Event::next` otherwise
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     */
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    public function onNewActivityPubActivityWithObject(Actor $actor, \ActivityPhp\Type\AbstractObject $type_activity, mixed $type_object, ?\Plugin\ActivityPub\Entity\ActivitypubActivity &$ap_act): bool
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    {
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        return $this->activitypub_handler($actor, $type_activity, $type_object, $ap_act);
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    }
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    /**
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     * Translate GNU social internal verb 'favourite' to Activity Streams 2.0 'Like'
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     *
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     * @param string      $verb                                GNU social's internal verb
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     * @param null|string $gs_verb_to_activity_stream_two_verb Resulting Activity Streams 2.0 verb
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     *
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     * @return bool Returns `Event::stop` if handled, `Event::next` otherwise
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     */
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    public function onGSVerbToActivityStreamsTwoActivityType(string $verb, ?string &$gs_verb_to_activity_stream_two_verb): bool
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    {
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        if ($verb === 'favourite') {
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            $gs_verb_to_activity_stream_two_verb = 'Like';
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            return Event::stop;
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        }
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        return Event::next;
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    }
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}
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