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[ActivityPub] Fix DELETE

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This commit is contained in:
Diogo Cordeiro 2020-08-29 11:12:02 +01:00
parent c75bf1a19d
commit 817074a787
11 changed files with 261 additions and 90 deletions
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8
classes/Notice.php
View File

@ -231,12 +231,12 @@ class Notice extends Managed_DataObject
return $notice;
}
/*
* @param $root boolean If true, link to just the conversation root.
/**
* @param bool $anchor If false, link to just the conversation root.
*
* @return URL to conversation
* @return string URL to conversation
*/
public function getConversationUrl($anchor=true)
public function getConversationUrl(bool $anchor = true): string
{
return Conversation::getUrlFromNotice($this, $anchor);
}

2
plugins/ActivityPub/ActivityPubPlugin.php
View File

@ -132,7 +132,7 @@ class ActivityPubPlugin extends Plugin
throw new Exception("The acclaimed actor didn't create this note.");
}
} else {
throw new Exception("Valid ActivityPub Notice object but unsupported by GNU social.");
throw new Exception("Invalid Note Object. Maybe it's a Tombstone?");
}
}

128
plugins/ActivityPub/actions/apnotice.php
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@ -39,6 +39,96 @@ class apNoticeAction extends ManagedAction
protected $needLogin = false;
protected $canPost = true;
/**
* Notice id
* @var int
*/
public $notice_id;
/**
* Notice object to show
*/
public $notice = null;
/**
* Profile of the notice object
*/
public $profile = null;
/**
* Avatar of the profile of the notice object
*/
public $avatar = null;
/**
* Load attributes based on database arguments
*
* Loads all the DB stuff
*
* @param array $args $_REQUEST array
*
* @return bool success flag
*/
protected function prepare(array $args = []): bool
{
parent::prepare($args);
$this->notice_id = (int)$this->trimmed('id');
try {
$this->notice = $this->getNotice();
} catch (ClientException $e) {
//ActivityPubReturn::error('Activity deleted.', 410);
ActivityPubReturn::answer(Activitypub_tombstone::tombstone_to_array(common_local_url('apNotice', ['id' => $this->notice_id])), 410);
}
$this->target = $this->notice;
if (!$this->notice->inScope($this->scoped)) {
// TRANS: Client exception thrown when trying a view a notice the user has no access to.
throw new ClientException(_m('Access restricted.'), 403);
}
$this->profile = $this->notice->getProfile();
if (!$this->profile instanceof Profile) {
// TRANS: Server error displayed trying to show a notice without a connected profile.
$this->serverError(_m('Notice has no profile.'), 500);
}
try {
$this->avatar = $this->profile->getAvatar(AVATAR_PROFILE_SIZE);
} catch (Exception $e) {
$this->avatar = null;
}
return true;
}
/**
* Is this action read-only?
*
* @return bool true
*/
public function isReadOnly($args): bool
{
return true;
}
/**
* Last-modified date for page
*
* When was the content of this page last modified? Based on notice,
* profile, avatar.
*
* @return int last-modified date as unix timestamp
*/
public function lastModified(): int
{
return max(strtotime($this->notice->modified),
strtotime($this->profile->modified),
($this->avatar) ? strtotime($this->avatar->modified) : 0);
}
/**
* Handle the Notice request
*
@ -48,21 +138,45 @@ class apNoticeAction extends ManagedAction
* @throws ServerException
* @author Diogo Cordeiro <diogo@fc.up.pt>
*/
protected function handle()
protected function handle(): void
{
try {
$notice = Notice::getByID($this->trimmed('id'));
} catch (Exception $e) {
if (is_null($this->notice)) {
ActivityPubReturn::error('Invalid Activity URI.', 404);
}
if (!$notice->isLocal()) {
if (!$this->notice->isLocal()) {
// We have no authority on the requested activity.
ActivityPubReturn::error("This is not a local activity.", 403);
}
$res = Activitypub_notice::notice_to_array($notice);
$res = Activitypub_notice::notice_to_array($this->notice);
ActivityPubReturn::answer($res);
}
/**
* Fetch the notice to show. This may be overridden by child classes to
* customize what we fetch without duplicating all of the prepare() method.
*
* @return null|Notice null if not found
* @throws ClientException If GONE
*/
protected function getNotice(): ?Notice
{
$notice = null;
try {
$notice = Notice::getByID($this->notice_id);
// Alright, got it!
return $notice;
} catch (NoResultException $e) {
// Hm, not found.
$deleted = null;
Event::handle('IsNoticeDeleted', [$this->notice_id, &$deleted]);
if ($deleted === true) {
// TRANS: Client error displayed trying to show a deleted notice.
throw new ClientException(_m('Notice deleted.'), 410);
}
}
// No such notice.
return null;
}
}

6
plugins/ActivityPub/lib/activitypubqueuehandler.php
View File

@ -204,7 +204,7 @@ class ActivityPubQueueHandler extends QueueHandler
*
* @param $user
* @param $notice
* @return boolean hook flag
* @return bool hook flag
* @throws HTTP_Request2_Exception
* @throws InvalidUrlException
* @author Diogo Cordeiro <diogo@fc.up.pt>
@ -218,10 +218,6 @@ class ActivityPubQueueHandler extends QueueHandler
return true;
}
$other = Activitypub_profile::from_profile_collection(
$notice->getAttentionProfiles()
);
if ($notice->reply_to) {
try {
$parent_notice = $notice->getParent();

74
plugins/ActivityPub/lib/inbox_handler.php
View File

@ -229,8 +229,6 @@ class Activitypub_inbox_handler
/**
* Handles a Delete Activity received by our inbox.
*
* @throws NoProfileException
* @throws Exception
* @author Bruno Casteleiro <brunoccast@fc.up.pt>
* @author Diogo Cordeiro <diogo@fc.up.pt>
*/
@ -240,8 +238,8 @@ class Activitypub_inbox_handler
if (is_string($object)) {
$client = new HTTPClient();
$response = $client->get($object, ACTIVITYPUB_HTTP_CLIENT_HEADERS);
$gone = !$response->isOk();
if (!$gone) { // It's not gone, we're updating it.
$not_gone = $response->isOk();
if ($not_gone) { // It's not gone, we're updating it.
$object = json_decode($response->getBody(), true);
switch ($object['type']) {
case 'Person':
@ -254,57 +252,57 @@ class Activitypub_inbox_handler
Activitypub_explorer::get_profile_from_url($object['id']);
}
break;
case 'Tombstone':
case 'Note': // XXX: We do not support updating a note's contents so, we'll delete and re-fetch for now...
try {
$notice = ActivityPubPlugin::grab_notice_from_url($object, false);
$notice = ActivityPubPlugin::grab_notice_from_url($object['id'], false);
if ($notice instanceof Notice) {
$notice->delete();
}
ActivityPubPlugin::grab_notice_from_url($object['id'], true);
return;
} catch (Exception $e) {
// either already deleted or not an object at all
// nothing to do..
}
break;
case 'Note':
// XXX: We do not support updating a note's contents so, we'll ignore it for now...
default:
common_log(LOG_INFO, "Ignoring Delete activity, we do not understand for {$object['type']}.");
}
}
} else {
// We don't know the type of the deleted object :(
// Nor if it's gone or not.
try {
if (is_array($object)) {
$object = $object['id'];
}
$aprofile = Activitypub_profile::fromUri($object, false);
$res = Activitypub_explorer::get_remote_user_activity($object);
Activitypub_profile::update_profile($aprofile, $res);
return;
} catch (Exception $e) {
// Means this wasn't a profile
}
}
try {
$client = new HTTPClient();
$response = $client->get($object, ACTIVITYPUB_HTTP_CLIENT_HEADERS);
// If it was deleted
if ($response->getStatus() == 410) {
$notice = ActivityPubPlugin::grab_notice_from_url($object, false);
if ($notice instanceof Notice) {
$notice->delete();
}
} else {
// We can't update a note's contents so, we'll ignore it for now...
}
return;
} catch (Exception $e) {
// Means we didn't have this note already
}
// IFF we reached this point, it either is gone or it's an array
// If it's gone, we don't know the type of the deleted object, we only have a Tombstone
// If we were given an array, we don't know if it's Gone or not via status code...
// In both cases, we will want to fetch the ID and act on that as it is easier than updating the fields
// Was it a profile?
try {
$object = $object['id'];
$aprofile = Activitypub_profile::fromUri($object, false);
$res = Activitypub_explorer::get_remote_user_activity($object);
Activitypub_profile::update_profile($aprofile, $res);
return;
} catch (Exception $e) {
// Means this wasn't a profile
}
// Was it a note?
try {
$client = new HTTPClient();
/*$response =*/ $client->get($object, ACTIVITYPUB_HTTP_CLIENT_HEADERS);
// If it was deleted
//if (!$response->isOk()) { // 410 or 404
$notice = ActivityPubPlugin::grab_notice_from_url($object, false);
if ($notice instanceof Notice) {
$notice->delete();
}
// } else
ActivityPubPlugin::grab_notice_from_url($object, true);
// XXX: We do not support updating a note's contents so, we'll delete and re-fetch for now...
} catch (Exception $e) {
// Means we didn't have this note already
// Or we had, deleted and it exploded trying to fetch the Tombstone, either way, we're good.
}
}

15
plugins/ActivityPub/lib/models/Activitypub_delete.php
View File

@ -39,22 +39,13 @@ class Activitypub_delete
/**
* Generates an ActivityPub representation of a Delete
*
* @param string $actor actor URI
* @param string $object object URI
* @param Notice $notice
* @return array pretty array to be used in a response
* @author Diogo Cordeiro <diogo@fc.up.pt>
*/
public static function delete_to_array(string $actor, string $object): array
public static function delete_to_array(Notice $notice): array
{
$res = [
'@context' => 'https://www.w3.org/ns/activitystreams',
'id' => $object . '#delete',
'type' => 'Delete',
'to' => ['https://www.w3.org/ns/activitystreams#Public'],
'actor' => $actor,
'object' => $object
];
return $res;
return Activitypub_notice::notice_to_array($notice);
}
/**

5
plugins/ActivityPub/lib/models/Activitypub_error.php
View File

@ -43,11 +43,10 @@ class Activitypub_error
* @param string $m
* @return array pretty array to be used in a response
*/
public static function error_message_to_array($m)
public static function error_message_to_array(string $m): array
{
$res = [
return [
'error'=> $m
];
return $res;
}
}

2
plugins/ActivityPub/lib/models/Activitypub_like.php
View File

@ -27,7 +27,7 @@
defined('GNUSOCIAL') || die();
/**
* ActivityPub error representation
* ActivityPub Like representation
*
* @category Plugin
* @package GNUsocial

51
plugins/ActivityPub/lib/models/Activitypub_notice.php
View File

@ -79,21 +79,42 @@ class Activitypub_notice
$tags[] = Activitypub_mention_tag::mention_tag_to_array_from_values($href, $to_profile->getNickname() . '@' . parse_url($href, PHP_URL_HOST));
}
$item = [
'@context' => 'https://www.w3.org/ns/activitystreams',
'id' => self::getUri($notice),
'type' => 'Note',
'published' => str_replace(' ', 'T', $notice->getCreated()) . 'Z',
'url' => $notice->getUrl(),
'attributedTo' => $profile->getUri(),
'to' => $to,
'cc' => $cc,
'conversation' => $notice->getConversationUrl(),
'content' => $notice->getRendered(),
'isLocal' => $notice->isLocal(),
'attachment' => $attachments,
'tag' => $tags
];
if (ActivityUtils::compareVerbs($notice->getVerb(), ActivityVerb::DELETE)) {
$item = [
'@context' => 'https://www.w3.org/ns/activitystreams',
'id' => self::getUri($notice),
'type' => 'Delete',
// XXX: A bit of ugly code here
'object' => array_merge(Activitypub_tombstone::tombstone_to_array(common_local_url('apNotice', ['id' => (int)substr(explode(':', $notice->getUri())[2],9)])), ['deleted' => str_replace(' ', 'T', $notice->getCreated()) . 'Z']),
'url' => $notice->getUrl(),
'actor' => $profile->getUri(),
'to' => $to,
'cc' => $cc,
'conversationId' => $notice->getConversationUrl(false),
'conversationUrl' => $notice->getConversationUrl(),
'content' => $notice->getRendered(),
'isLocal' => $notice->isLocal(),
'attachment' => $attachments,
'tag' => $tags
];
} else { // Note
$item = [
'@context' => 'https://www.w3.org/ns/activitystreams',
'id' => self::getUri($notice),
'type' => 'Note',
'published' => str_replace(' ', 'T', $notice->getCreated()) . 'Z',
'url' => $notice->getUrl(),
'attributedTo' => $profile->getUri(),
'to' => $to,
'cc' => $cc,
'conversationId' => $notice->getConversationUrl(false),
'conversationUrl' => $notice->getConversationUrl(),
'content' => $notice->getRendered(),
'isLocal' => $notice->isLocal(),
'attachment' => $attachments,
'tag' => $tags
];
}
// Is this a reply?
if (!empty($notice->reply_to)) {

55
plugins/ActivityPub/lib/models/Activitypub_tombstone.php Normal file
View File

@ -0,0 +1,55 @@
<?php
// 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/>.
/**
* ActivityPub implementation for GNU social
*
* @package GNUsocial
* @author Diogo Cordeiro <diogo@fc.up.pt>
* @copyright 2020 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
* @link http://www.gnu.org/software/social/
*/
defined('GNUSOCIAL') || die();
/**
* ActivityPub Tombstone representation
*
* @category Plugin
* @package GNUsocial
* @author Diogo Cordeiro <diogo@fc.up.pt>
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
class Activitypub_tombstone
{
/**
* Generates an ActivityPub representation of a Tombstone
*
* @param string $id Activity id
* @return array pretty array to be used in a response
* @author Diogo Cordeiro <diogo@fc.up.pt>
*/
public static function tombstone_to_array(string $id): array
{
$res = [
'@context' => 'https://www.w3.org/ns/activitystreams',
'id' => $id,
'type' => 'Tombstone'
];
return $res;
}
}

5
plugins/ActivityPub/lib/postman.php
View File

@ -365,10 +365,7 @@ class Activitypub_postman
*/
public function delete_note($notice)
{
$data = Activitypub_delete::delete_to_array(
$notice->getProfile()->getUri(),
Activitypub_notice::getUri($notice)
);
$data = Activitypub_delete::delete_to_array($notice);
$errors = [];
$data = json_encode($data, JSON_UNESCAPED_SLASHES);
foreach ($this->to_inbox() as $inbox) {