forked from GNUsocial/gnu-social
		
	
		
			
				
	
	
		
			400 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			400 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| 
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| declare(strict_types = 1);
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| 
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| // {{{ License
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| 
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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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| // }}}
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| 
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| /**
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|  * @author    Eliseu Amaro <mail@eliseuama.ro>
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|  * @author    Diogo Peralta Cordeiro <@diogo.site>
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|  * @copyright 2021-2022 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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| 
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| namespace Plugin\Favourite;
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| 
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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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| 
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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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|      * @param int $note_id  Note id being favoured
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|      * @param int $actor_id Actor performing favourite Activity
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|      *
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|      * @throws \App\Util\Exception\ServerException
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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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| 
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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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|     /**
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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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|      * @param int $note_id  Note id being unfavoured
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|      * @param int $actor_id Actor undoing favourite Activity
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|      *
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|      * @throws \App\Util\Exception\ServerException
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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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|             static 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::removeBy(FavouriteEntity::class, ['note_id' => $note_id, 'actor_id' => $actor_id]);
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| 
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|             Cache::delete(FavouriteEntity::cacheKeys($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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| 
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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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|     /**
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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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|      * @param Note  $note    Current Note being rendered
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|      * @param array $actions Array containing all Note actions to be rendered
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|      *
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|      * @return bool Event hook, Event::next (true) is returned to allow Event to be handled by other handlers
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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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| 
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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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|                 static fn () => DB::findOneBy('note_favourite', $opts, return_null: true),
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|             ),
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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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| 
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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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| 
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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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| 
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|         $actions[] = $favourite_action;
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|         return Event::next;
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|     }
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| 
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|     /**
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|      * Appends on Note currently being rendered complementary information regarding whom (subject) performed which Activity (verb) on aforementioned Note (object)
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|      *
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|      * @param array $vars   Array containing necessary info to process event. In this case, contains the current Note being rendered
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|      * @param array $result Contains a hashmap for each Activity performed on Note (object)
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|      *
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|      * @return bool Event hook, Event::next (true) is returned to allow Event to be handled by other handlers
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|      */
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|     public function onAppendCardNote(array $vars, array &$result): bool
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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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| 
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|         // The current Note being rendered
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|         $note = $vars['note'];
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| 
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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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| 
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|         if (\count($favourite_actors) < 1) {
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|             return Event::next;
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|         }
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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' => $favourite_actors, 'action' => 'favourited'];
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|         return Event::next;
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|     }
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| 
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|     /**
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|      * Deletes every favourite entity in table related to a deleted Note
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|      */
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|     public function onNoteDeleteRelated(Note &$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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| 
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|         return Event::next;
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|     }
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| 
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|     /**
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|      * Maps Routes to their respective Controllers
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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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| 
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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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| 
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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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| 
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|     /**
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|      * Creates two feeds, including reverse favourites or favourites performed by given Actor
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|      *
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|      * @param int $actor_id Whom the favourites belong to
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|      *
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|      * @throws \App\Util\Exception\ServerException
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|      */
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|     public function onCreateDefaultFeeds(int $actor_id, LocalUser $user, int &$ordering): bool
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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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| 
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|     // ActivityPub handling and processing for Favourites is below
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| 
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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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|      * @throws \App\Util\Exception\ClientException
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|      * @throws \App\Util\Exception\DuplicateFoundException
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|      * @throws \App\Util\Exception\NoSuchActorException
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|      * @throws \App\Util\Exception\ServerException
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|      * @throws \Symfony\Contracts\HttpClient\Exception\ClientExceptionInterface
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|      * @throws \Symfony\Contracts\HttpClient\Exception\RedirectionExceptionInterface
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|      * @throws \Symfony\Contracts\HttpClient\Exception\ServerExceptionInterface
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|      * @throws \Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface
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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 = $type_object->getId();
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|             } else {
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|                 return Event::next;
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|             }
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|         } elseif ($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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|     /**
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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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|      * @throws \App\Util\Exception\ClientException
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|      * @throws \App\Util\Exception\DuplicateFoundException
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|      * @throws \App\Util\Exception\NoSuchActorException
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|      * @throws \App\Util\Exception\ServerException
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|      * @throws \Symfony\Contracts\HttpClient\Exception\ClientExceptionInterface
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|      * @throws \Symfony\Contracts\HttpClient\Exception\RedirectionExceptionInterface
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|      * @throws \Symfony\Contracts\HttpClient\Exception\ServerExceptionInterface
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|      * @throws \Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface
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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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|     /**
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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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|      * @throws \App\Util\Exception\ClientException
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|      * @throws \App\Util\Exception\DuplicateFoundException
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|      * @throws \App\Util\Exception\NoSuchActorException
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|      * @throws \App\Util\Exception\ServerException
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|      * @throws \Symfony\Contracts\HttpClient\Exception\ClientExceptionInterface
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|      * @throws \Symfony\Contracts\HttpClient\Exception\RedirectionExceptionInterface
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|      * @throws \Symfony\Contracts\HttpClient\Exception\ServerExceptionInterface
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|      * @throws \Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface
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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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|     /**
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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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