gnu-social/plugins/RepeatNote/RepeatNote.php

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<?php
declare(strict_types = 1);
// {{{ License
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
// }}}
namespace Plugin\RepeatNote;
use App\Core\DB\DB;
use App\Core\Event;
use function App\Core\I18n\_m;
use App\Core\Modules\NoteHandlerPlugin;
use App\Core\Router\RouteLoader;
use App\Core\Router\Router;
use App\Entity\Activity;
use App\Entity\Actor;
use App\Entity\Note;
use App\Util\Common;
use App\Util\Exception\BugFoundException;
use App\Util\Exception\ClientException;
use App\Util\Exception\DuplicateFoundException;
use App\Util\Exception\ServerException;
use App\Util\Formatting;
2021-12-26 09:48:16 +00:00
use Component\Language\Entity\Language;
use Component\Posting\Posting;
use DateTime;
use Plugin\RepeatNote\Entity\NoteRepeat;
use const SORT_REGULAR;
use Symfony\Component\HttpFoundation\Request;
class RepeatNote extends NoteHandlerPlugin
{
/**
* **Repeats a Note**
*
* This means the current Actor creates a new Note, cloning the contents of
* the original Note provided as an argument.
*
* Bear in mind that, if it's a repeat, the **reply_to** should be to the
* original, and **conversation** ought to be the same.
*
* In the end, the Activity is created, and a new notification for the
* repeat Activity created
*
* @throws BugFoundException
* @throws ClientException
* @throws DuplicateFoundException
* @throws ServerException
*/
public static function repeatNote(Note $note, int $actor_id, string $source = 'web'): ?Activity
{
$repeat_entity = DB::findBy('note_repeat', [
'actor_id' => $actor_id,
'note_id' => $note->getId(),
])[0] ?? null;
if (!\is_null($repeat_entity)) {
return null;
}
// If it's a repeat, the reply_to should be to the original, conversation ought to be the same
$og_id = $note->getId();
$extra_args['reply_to'] = $og_id;
// Create a new note with the same content as the original
$repeat = Posting::storeLocalNote(
actor: Actor::getById($actor_id),
content: $note->getContent(),
content_type: $note->getContentType(),
language: \is_null($lang_id = $note->getLanguageId()) ? null : Language::getById($lang_id)->getLocale(),
processed_attachments: $note->getAttachmentsWithTitle(),
process_note_content_extra_args: $extra_args,
notify: false,
);
DB::persist(NoteRepeat::create([
'note_id' => $repeat->getId(),
'actor_id' => $actor_id,
'repeat_of' => $og_id,
]));
// Log an activity
$repeat_activity = Activity::create([
'actor_id' => $actor_id,
'verb' => 'repeat',
'object_type' => 'note',
'object_id' => $note->getId(),
'source' => $source,
]);
DB::persist($repeat_activity);
Event::handle('NewNotification', [$actor = Actor::getById($actor_id), $repeat_activity, [], _m('{nickname} repeated note {note_id}.', ['nickname' => $actor->getNickname(), 'note_id' => $repeat_activity->getObjectId()])]);
return $repeat_activity;
}
/**
* **Undoes a Repeat**
*
* Removes the Repeat from NoteRepeat table, and the deletes the Note
* clone.
*
* Finally, creates a new Activity, undoing the repeat, and the respective
* Notification is handled.
*
* @throws ServerException
*/
public static function unrepeatNote(int $note_id, int $actor_id, string $source = 'web'): ?Activity
{
$already_repeated = DB::findBy(NoteRepeat::class, ['actor_id' => $actor_id, 'repeat_of' => $note_id])[0] ?? null;
if (!\is_null($already_repeated)) { // If it was repeated, then we can undo it
// Find previous repeat activity
$already_repeated_activity = DB::findBy(Activity::class, [
'actor_id' => $actor_id,
'verb' => 'repeat',
'object_type' => 'note',
'object_id' => $already_repeated->getRepeatOf(),
])[0] ?? null;
// Remove the clone note
DB::findBy(Note::class, ['id' => $already_repeated->getNoteId()])[0]->delete(actor: Actor::getById($actor_id));
// Remove from the note_repeat table
DB::remove(DB::findBy(NoteRepeat::class, ['note_id' => $already_repeated->getNoteId()])[0]);
// Log an activity
$undo_repeat_activity = Activity::create([
'actor_id' => $actor_id,
'verb' => 'undo',
'object_type' => 'activity',
'object_id' => $already_repeated_activity->getId(),
'source' => $source,
]);
DB::persist($undo_repeat_activity);
Event::handle('NewNotification', [$actor = Actor::getById($actor_id), $undo_repeat_activity, [], _m('{nickname} unrepeated note {note_id}.', ['nickname' => $actor->getNickname(), 'note_id' => $note_id])]);
return $undo_repeat_activity;
} else {
// Either was undoed already
if (!\is_null($already_repeated_activity = DB::findBy('activity', [
'actor_id' => $actor_id,
'verb' => 'repeat',
'object_type' => 'note',
'object_id' => $note_id,
])[0] ?? null)) {
return DB::findBy('activity', [
'actor_id' => $actor_id,
'verb' => 'undo',
'object_type' => 'activity',
'object_id' => $already_repeated_activity->getId(),
])[0] ?? null; // null if not undoed
} else {
// or it's an attempt to undo something that wasn't repeated in the first place,
return null;
}
}
}
/**
* Filters repeats out of Conversations, and replaces a repeat with the
* original Note on Actor feed
*/
public function onFilterNoteList(?Actor $actor, array &$notes, Request $request): bool
{
// Replaces repeat with original note on Actor feed
// it's pretty cool
if (str_starts_with($request->get('_route'), 'actor_view_')) {
$notes = array_map(
fn (Note $note) => NoteRepeat::isNoteRepeat($note)
? Note::getById(NoteRepeat::getByPK($note->getId())->getRepeatOf())
: $note,
$notes,
);
return Event::next;
}
// Filter out repeats altogether
$notes = array_filter($notes, fn (Note $note) => !NoteRepeat::isNoteRepeat($note));
return Event::next;
}
/**
* HTML rendering event that adds the repeat form as a note
* action, if a user is logged in
*
* @return bool Event hook
*/
public function onAddNoteActions(Request $request, Note $note, array &$actions): bool
{
// Only logged users can repeat notes
if (\is_null($user = Common::user())) {
return Event::next;
}
// If note is repeated, "is_repeated" is 1, 0 otherwise.
$is_repeat = ($note_repeat = DB::findBy('note_repeat', [
'actor_id' => $user->getId(),
'repeat_of' => $note->getId(),
])) !== [] ? 1 : 0;
// Generating URL for repeat action route
$args = ['note_id' => $is_repeat === 0 ? $note->getId() : $note_repeat[0]->getRepeatOf()];
$type = Router::ABSOLUTE_PATH;
$repeat_action_url = $is_repeat
? Router::url('repeat_remove', $args, $type)
: Router::url('repeat_add', $args, $type);
// Concatenating get parameter to redirect the user to where he came from
$repeat_action_url .= '?from=' . urlencode($request->getRequestUri());
$extra_classes = $is_repeat ? 'note-actions-set' : 'note-actions-unset';
$repeat_action = [
'url' => $repeat_action_url,
'title' => $is_repeat ? 'Remove this repeat' : 'Repeat this note!',
'classes' => "button-container repeat-button-container {$extra_classes}",
'note_id' => 'repeat-button-container-' . $note->getId(),
];
$actions[] = $repeat_action;
return Event::next;
}
/**
* Appends in Note information stating who and what user actions were
* performed.
*
* @param array $vars Contains the Note currently being rendered
* @param array $result Rendered String containing anchors for Actors that
* repeated the Note
*
* @return bool
*/
public function onAppendCardNote(array $vars, array &$result)
{
// If note is the original and user isn't the one who repeated, append on end "user repeated this"
// If user is the one who repeated, append on end "you repeated this, remove repeat?"
$check_user = !\is_null(Common::user());
// The current Note being rendered
$note = $vars['note'];
// Will have actors array, and action string
// Actors are the subjects, action is the verb (in the final phrase)
$repeat_actors = [];
$note_repeats = NoteRepeat::getNoteRepeats($note);
// Get actors who repeated the note
foreach ($note_repeats as $repeat) {
$repeat_actors[] = Actor::getByPK($repeat->getActorId());
}
if (\count($repeat_actors) < 1) {
return Event::next;
}
// Filter out multiple replies from the same actor
$repeat_actors = array_unique($repeat_actors, SORT_REGULAR);
$result[] = ['actors' => $repeat_actors, 'action' => 'repeated'];
return Event::next;
}
/**
* Connects the following Routes to their respective Controllers:
*
* - **repeat_add**
* page containing the Note the user wishes to Repeat and a button to
* confirm it wishes to perform the action
*
* - **repeat_remove**
* same as above, except that it undoes the aforementioned action
*
* @return bool Event hook
*/
public function onAddRoute(RouteLoader $r): bool
{
// Add/remove note to/from repeats
$r->connect(id: 'repeat_add', uri_path: '/object/note/{note_id<\d+>}/repeat', target: [Controller\Repeat::class, 'repeatAddNote']);
$r->connect(id: 'repeat_remove', uri_path: '/object/note/{note_id<\d+>}/unrepeat', target: [Controller\Repeat::class, 'repeatRemoveNote']);
return Event::next;
}
// ActivityPub handling and processing for Repeats is below
/**
* ActivityPub Inbox handler for Announces and Undo Announce activities
*
* @param Actor $actor Actor who authored the activity
* @param \ActivityPhp\Type\AbstractObject $type_activity Activity Streams 2.0 Activity
* @param mixed $type_object Activity's Object
* @param null|\Plugin\ActivityPub\Entity\ActivitypubActivity $ap_act Resulting ActivitypubActivity
*
* @return bool Returns `Event::stop` if handled, `Event::next` otherwise
*/
private function activitypub_handler(Actor $actor, \ActivityPhp\Type\AbstractObject $type_activity, mixed $type_object, ?\Plugin\ActivityPub\Entity\ActivitypubActivity &$ap_act): bool
{
if (!\in_array($type_activity->get('type'), ['Announce', 'Undo'])) {
return Event::next;
}
if ($type_activity->get('type') === 'Announce') { // Repeat
if ($type_object instanceof \ActivityPhp\Type\AbstractObject) {
if ($type_object->get('type') === 'Note') {
$note = \Plugin\ActivityPub\Util\Model\Note::fromJson($type_object);
$note_id = $note->getId();
} else {
return Event::next;
}
} elseif ($type_object instanceof Note) {
$note = $type_object;
$note_id = $note->getId();
} else {
return Event::next;
}
} else { // Undo Repeat
if ($type_object instanceof \ActivityPhp\Type\AbstractObject) {
$ap_prev_repeat_act = \Plugin\ActivityPub\Util\Model\Activity::fromJson($type_object);
$prev_repeat_act = $ap_prev_repeat_act->getActivity();
if ($prev_repeat_act->getVerb() === 'repeat' && $prev_repeat_act->getObjectType() === 'note') {
$note_id = $prev_repeat_act->getObjectId();
} else {
return Event::next;
}
} elseif ($type_object instanceof Activity) {
if ($type_object->getVerb() === 'repeat' && $type_object->getObjectType() === 'note') {
$note_id = $type_object->getObjectId();
} else {
return Event::next;
}
} else {
return Event::next;
}
}
if ($type_activity->get('type') === 'Announce') {
$activity = self::repeatNote($note ?? Note::getById($note_id), $actor->getId(), source: 'ActivityPub');
} else {
$activity = self::unrepeatNote($note_id, $actor->getId(), source: 'ActivityPub');
}
if (!\is_null($activity)) {
// Store ActivityPub Activity
$ap_act = \Plugin\ActivityPub\Entity\ActivitypubActivity::create([
'activity_id' => $activity->getId(),
'activity_uri' => $type_activity->get('id'),
'created' => new DateTime($type_activity->get('published') ?? 'now'),
'modified' => new DateTime(),
]);
DB::persist($ap_act);
}
return Event::stop;
}
/**
* Convert an Activity Streams 2.0 Announce or Undo Announce into the appropriate Repeat and Undo Repeat entities
*
* @param Actor $actor Actor who authored the activity
* @param \ActivityPhp\Type\AbstractObject $type_activity Activity Streams 2.0 Activity
* @param \ActivityPhp\Type\AbstractObject $type_object Activity Streams 2.0 Object
* @param null|\Plugin\ActivityPub\Entity\ActivitypubActivity $ap_act Resulting ActivitypubActivity
*
* @return bool Returns `Event::stop` if handled, `Event::next` otherwise
*/
public function onNewActivityPubActivity(Actor $actor, \ActivityPhp\Type\AbstractObject $type_activity, \ActivityPhp\Type\AbstractObject $type_object, ?\Plugin\ActivityPub\Entity\ActivitypubActivity &$ap_act): bool
{
return $this->activitypub_handler($actor, $type_activity, $type_object, $ap_act);
}
/**
* Convert an Activity Streams 2.0 formatted activity with a known object into Entities
*
* @param Actor $actor Actor who authored the activity
* @param \ActivityPhp\Type\AbstractObject $type_activity Activity Streams 2.0 Activity
* @param mixed $type_object Object
* @param null|\Plugin\ActivityPub\Entity\ActivitypubActivity $ap_act Resulting ActivitypubActivity
*
* @return bool Returns `Event::stop` if handled, `Event::next` otherwise
*/
public function onNewActivityPubActivityWithObject(Actor $actor, \ActivityPhp\Type\AbstractObject $type_activity, mixed $type_object, ?\Plugin\ActivityPub\Entity\ActivitypubActivity &$ap_act): bool
{
return $this->activitypub_handler($actor, $type_activity, $type_object, $ap_act);
}
/**
* Translate GNU social internal verb 'repeat' to Activity Streams 2.0 'Announce'
*
* @param string $verb GNU social's internal verb
* @param null|string $gs_verb_to_activity_stream_two_verb Resulting Activity Streams 2.0 verb
*
* @return bool Returns `Event::stop` if handled, `Event::next` otherwise
*/
public function onGSVerbToActivityStreamsTwoActivityType(string $verb, ?string &$gs_verb_to_activity_stream_two_verb): bool
{
if ($verb === 'repeat') {
$gs_verb_to_activity_stream_two_verb = 'Announce';
return Event::stop;
}
return Event::next;
}
}