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[PLUGIN][DeleteNote] Delete Note action implemented 

Replaces Note content with a tombstone, removes any attachment relations and decrements their lives (possibly even removing the attachment), and creates the respective activity
This commit is contained in:
Eliseu Amaro 2021-12-27 22:33:10 +00:00
parent f5b06e2c7e
commit a03429ba03
Signed by: eliseuamaro
GPG Key ID: 96DA09D4B97BC2D5
5 changed files with 369 additions and 69 deletions
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80
plugins/DeleteNote/Controller/DeleteNote.php
View File

@ -24,13 +24,89 @@ declare(strict_types = 1);
namespace Plugin\DeleteNote\Controller;
use App\Core\Controller;
use App\Util\Exception\NotImplementedException;
use App\Core\DB\DB;
use App\Core\Form;
use function App\Core\I18n\_m;
use App\Core\Log;
use App\Core\Router\Router;
use App\Entity\Note;
use App\Util\Common;
use App\Util\Exception\ClientException;
use App\Util\Exception\NoLoggedInUser;
use App\Util\Exception\NoSuchNoteException;
use App\Util\Exception\RedirectException;
use App\Util\Exception\ServerException;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\HttpFoundation\Request;
class DeleteNote extends Controller
{
/**
* Create delete note view
* @throws ClientException
* @throws NoLoggedInUser
* @throws RedirectException
* @throws ServerException
*/
public function __invoke(Request $request)
{
throw new NotImplementedException;
$user = Common::ensureLoggedIn();
$note_id = (int) $request->get('note_id');
$note = Note::getByPK($note_id);
if (\is_null($note) || !$note->isVisibleTo($user)) {
throw new NoSuchNoteException();
}
// Only let the original actor delete it
// TODO: should be anyone with permissions to do this? Admins and what not
$actor = $user->getActor();
$actor_id = $actor->getId();
if ($note->getActor()->getId() !== $actor_id) {
// Log this shenanigans and get the user redirected
Log::warning("Actor {$actor_id} attempted to delete note {$note_id} without any permissions to do so)");
throw new RedirectException('root');
}
// We made sure that the note can be deleted, lets make the form
$form_delete = Form::create([
['delete_note', SubmitType::class,
[
'label' => _m('Delete it'),
'attr' => [
'title' => _m('Press to delete this note'),
],
],
],
]);
$form_delete->handleRequest($request);
if ($form_delete->isSubmitted()) {
if (!\is_null(\Plugin\DeleteNote\DeleteNote::deleteNote(note_id: $note_id, actor_id: $actor_id))) {
DB::flush();
} else {
throw new ClientException(_m('Note already deleted!'));
}
// Redirect user to where they came from
// Prevent open redirect
if (!\is_null($from = $this->string('from'))) {
if (Router::isAbsolute($from)) {
Log::warning("Actor {$actor_id} attempted to delete to a note and then get redirected to another host, or the URL was invalid ({$from})");
throw new ClientException(_m('Can not redirect to outside the website from here'), 400); // 400 Bad request (deceptive)
} else {
// TODO anchor on element id
throw new RedirectException(url: $from);
}
} else {
// If we don't have a URL to return to, go to the instance root
throw new RedirectException('root');
}
}
return [
'_template' => 'delete_note/delete_note.html.twig',
'note' => $note,
'delete' => $form_delete->createView(),
];
}
}

187
plugins/DeleteNote/DeleteNote.php
View File

@ -23,16 +23,19 @@ namespace Plugin\DeleteNote;
use App\Core\DB\DB;
use App\Core\Event;
use App\Core\Form;
use App\Util\Exception\BugFoundException;
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\RedirectException;
use Symfony\Component\Form\Extension\Core\Type\HiddenType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use App\Util\Exception\DuplicateFoundException;
use App\Util\Exception\NotFoundException;
use Component\Attachment\Entity\Attachment;
use Component\Attachment\Entity\AttachmentToNote;
use Plugin\DeleteNote\Entity\DeleteNote as DeleteEntity;
use Symfony\Component\HttpFoundation\Request;
/**
@ -40,7 +43,7 @@ use Symfony\Component\HttpFoundation\Request;
* Adds "delete this note" action to respective note if the user logged in is the author.
*
* @package GNUsocial
* @category ProfileColor
* @category DeleteNote
*
* @author Eliseu Amaro <mail@eliseuama.ro>
* @copyright 2021 Free Software Foundation, Inc http://www.fsf.org
@ -48,75 +51,125 @@ use Symfony\Component\HttpFoundation\Request;
*/
class DeleteNote extends NoteHandlerPlugin
{
/**
* Delete the given Note
*
* Bear in mind, in GNU social deleting a Note only replaces its content with a tombstone
* @param DeleteEntity $deleteNote
* @return bool
* @throws BugFoundException
*/
private static function undertaker(DeleteEntity $deleteNote): bool
{
$note = Note::getById($deleteNote->getNoteId());
$actor = Actor::getById($deleteNote->getActorId());
// Only let the original actor delete it
// TODO: should be anyone with permissions to do this? Admins and what not
if ($note->getActor()->getId() !== $actor->getId()) {
return false;
}
// Create note tombstone to be rendered in a bit
$time_deleted = $deleteNote->getCreated();
$deletion_time = date_format($time_deleted, 'Y/m/d H:i:s');
$note->setModified($time_deleted);
$note_tombstone = "Actor {$actor->getUrl()} deleted this note at {$deletion_time}";
$note->setContent($note_tombstone);
// TODO: set note url with a new route, stating the note was deleted
// Get note attachments
$note_attachments = $note->getAttachments();
// Remove every relation this note has to its attachments
AttachmentToNote::removeWhereNoteId($note->getId());
// Iterate through all note attachments to decrement their lives
foreach ($note_attachments as $attachment_entity) {
if ($attachment_entity->livesDecrementAndGet() <= 0) {
// Remove attachment from DB if there are no lives remaining
DB::remove($attachment_entity);
} else {
// This means it can live... for now
DB::merge($attachment_entity);
}
}
// Flush DB, a lot of stuff happened
DB::flush();
// Get the note rendered with tombstone text
// TODO: not sure if I put the actor as a mention here
$mentions = [];
$rendered = null;
Event::handle('RenderNoteContent', [$note_tombstone, 'text/plain', &$rendered, $actor, $note->getLanguageLocale(), &$mentions]);
$note->setRendered($rendered);
// Apply changes to Note and flush
DB::merge($note);
DB::flush();
// Undertaker successful
return true;
}
public static function deleteNote(int $note_id, int $actor_id, string $source = 'web'): ?Activity
{
$opts = ['note_id' => $note_id, 'actor_id' => $actor_id];
$activity = null;
// Try and find if note was already deleted
try {
DB::findOneBy('delete_note', $opts);
} catch (DuplicateFoundException $e) {
} catch (NotFoundException $e) {
// If none found, then undertaker has a job to do
$delete_entity = DeleteEntity::create($opts);
if (self::undertaker($delete_entity)) {
// Undertaker believes the actor can terminate this note
// We should persist this entity then
DB::persist($delete_entity);
// TODO: "the server MAY replace the object with a Tombstone of the object"
// not sure if I can do that yet?
$activity = Activity::create([
'actor_id' => $actor_id,
'verb' => 'delete',
'object_type' => 'note',
'object_id' => $note_id,
'source' => $source,
]);
DB::persist($activity);
Event::handle('NewNotification', [$actor = Actor::getById($actor_id), $activity, [], "{$actor->getNickname()} deleted note {$note_id}"]);
}
}
return $activity;
}
public function onAddRoute(RouteLoader $r)
{
$r->connect(id: 'delete_note', uri_path: '/object/note/{id<\d+>}/delete', target: Controller\DeleteNote::class);
$r->connect(id: 'delete_note_action', uri_path: '/object/note/{note_id<\d+>}/delete', target: Controller\DeleteNote::class);
//$r->connect(id: 'note_deleted', uri_path: '/object/note/{note_id<\d+>}/404', target: Controller\DeleteNote::class);
return Event::next;
}
public function onAddExtraNoteActions(Request $request, Note $note, array &$actions)
{
$actions[] = [
'title' => _m('Delete note'),
'classes' => '',
'url' => Router::url('delete_note', ['id' => $note->getId()]),
];
}
/**
* HTML rendering event that adds the repeat form as a note
* action, if a user is logged in
*
* @throws RedirectException
*/
// TODO: Refactoring to link instead of a form
/* public function onAddNoteActions(Request $request, Note $note, array &$actions)
{
if (($user = Common::user()) === null) {
return Event::next;
}
$user_id = $user->getId();
$note_actor_id = $note->getActor()->getId();
if ($user_id !== $note_actor_id) {
return Event::next;
// Only add action if note wasn't already deleted!
try {
DB::findOneBy('delete_note', ['note_id' => $note->getId()]);
} catch (NotFoundException $e) {
$delete_action_url = Router::url('delete_note', ['note_id' => $note->getId()]);
$query_string = $request->getQueryString();
$delete_action_url .= '?from=' . mb_substr($query_string, 2);
$actions[] = [
'title' => _m('Delete note'),
'classes' => '',
'url' => $delete_action_url,
];
} catch (DuplicateFoundException $e) {
}
$note_id = $note->getId();
$form_delete = Form::create([
['submit_delete', SubmitType::class,
[
'label' => ' ',
'attr' => [
'class' => 'button-container delete-button-container',
'title' => _m('Delete this note.'),
],
],
],
['note_id', HiddenType::class, ['data' => $note_id]],
["delete-{$note_id}", HiddenType::class, []],
]);
// Handle form
$ret = self::noteActionHandle(
$request,
$form_delete,
$note,
"delete-{$note_id}",
function ($note, $note_id) {
DB::remove(DB::findOneBy('note', ['id' => $note_id]));
DB::flush();
// Prevent accidental refreshes from resubmitting the form
throw new RedirectException();
return Event::stop;
},
);
if ($ret !== null) {
return $ret;
}
$actions[] = $form_delete->createView();
return Event::next;
}*/
}
}

129
plugins/DeleteNote/Entity/DeleteNote.php Normal file
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@ -0,0 +1,129 @@
<?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\DeleteNote\Entity;
use App\Core\Entity;
/**
* DeleteNote entity
*
* Stores the Note id and Actor who performed the action upon deletion of Note
*
* @package GNUsocial
* @category DeleteNote
*
* @author Eliseu Amaro <mail@eliseuama.ro>
* @copyright 2020 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
class DeleteNote extends Entity
{
// {{{ Autocode
// @codeCoverageIgnoreStart
private int $id;
private int $note_id;
private int $actor_id;
private \DateTimeInterface $created;
private \DateTimeInterface $modified;
public function setId(int $id): self
{
$this->id = $id;
return $this;
}
public function getId(): int
{
return $this->id;
}
public function setNoteId(int $note_id): self
{
$this->note_id = $note_id;
return $this;
}
public function getNoteId(): int
{
return $this->note_id;
}
public function setActorId(int $actor_id): self
{
$this->actor_id = $actor_id;
return $this;
}
public function getActorId(): int
{
return $this->actor_id;
}
public function setCreated(\DateTimeInterface $created): self
{
$this->created = $created;
return $this;
}
public function getCreated(): \DateTimeInterface
{
return $this->created;
}
public function setModified(\DateTimeInterface $modified): self
{
$this->modified = $modified;
return $this;
}
public function getModified(): \DateTimeInterface
{
return $this->modified;
}
// @codeCoverageIgnoreEnd
// }}} Autocode
public static function schemaDef(): array
{
return [
'name' => 'delete_note',
'fields' => [
'id' => ['type' => 'serial', 'not null' => true, 'description' => 'Serial identifier'],
'note_id' => ['type' => 'int', 'foreign key' => true, 'target' => 'Note.id', 'multiplicity' => 'one to one', 'not null' => true, 'description' => 'Deleted Note identifier'],
'actor_id' => ['type' => 'int', 'foreign key' => true, 'target' => 'Actor.id', 'multiplicity' => 'one to one', 'not null' => true, 'description' => 'Actor who deleted the Note'],
'created' => ['type' => 'datetime', 'not null' => true, 'description' => 'date this record was created', 'default' => 'CURRENT_TIMESTAMP'],
'modified' => ['type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified', 'default' => 'CURRENT_TIMESTAMP'],
],
'primary key' => ['id'],
'foreign keys' => [
'note_id_to_id_fkey' => ['note', ['note_id' => 'id']],
'actor_id_to_id_fkey' => ['actor', ['actor_id' => 'id']],
],
'indexes' => [
'deleted_note_id_idx' => ['note_id'],
],
];
}
}

19
plugins/DeleteNote/templates/delete_note/delete_note.html.twig Normal file
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@ -0,0 +1,19 @@
{% extends 'stdgrid.html.twig' %}
{% import "/cards/note/view.html.twig" as noteView %}
{% block title %}{{ 'Delete ' | trans }}{{ 'note' | trans }}{% endblock %}
{% block stylesheets %}
{{ parent() }}
<link rel="stylesheet" href="{{ asset('assets/default_theme/css/pages/feeds.css') }}" type="text/css">
{% endblock stylesheets %}
{% block body %}
{{ parent() }}
<div class="page">
<div class="main">
{{ noteView.macro_note_minimal(note) }}
{{ form(delete) }}
</div>
</div>
{% endblock body %}

23
public/assets/icons/missing.svg.twig Normal file
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@ -0,0 +1,23 @@
<svg
class="{{ iconClass|default('') }}"
viewBox="0 0 24 24"
width="24"
height="24"
version="1.1"
xmlns="http://www.w3.org/2000/svg"
xmlns:svg="http://www.w3.org/2000/svg">
<title>Missing icon</title>
<defs
id="defs10" />
<g
id="g924"
transform="matrix(-1.0181289,0,0,-1.0181289,31.566762,24.172898)">
<path
d="M 22.266,2.711 A 0.75,0.75 0 1 0 21.205,1.651 L 19.222,3.634 17.238,1.651 a 0.75,0.75 0 1 0 -1.06,1.06 l 1.983,1.983 -1.983,1.984 a 0.75,0.75 0 0 0 1.06,1.06 l 1.984,-1.983 1.983,1.983 a 0.75,0.75 0 0 0 1.06,-1.06 L 20.282,4.694 Z"
id="path2" />
<path
fill-rule="evenodd"
d="m 16,19.25 c 3.2e-5,-1.506151 1.034586,-2.81507 2.5,-3.163 V 9.625 c 0,-0.9999996 1.5,-0.9999996 1.5,0 v 6.462 c 3.745332,0.894834 3.10074,6.406526 -0.75,6.413 C 17.455075,22.5 16,21.044925 16,19.25 Z m 3.25,-1.75 c -2.333332,0 -2.333332,3.5 0,3.5 2.333332,0 2.333332,-3.5 0,-3.5 z"
id="path4" />
</g>
</svg>
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