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First implementation of ActivityPub C2S

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Michael 2023-01-29 14:41:14 +00:00
parent df021b07e3
commit 101b3c9703
7 changed files with 295 additions and 55 deletions
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31
src/Module/ActivityPub/Inbox.php
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@ -21,11 +21,12 @@
namespace Friendica\Module\ActivityPub;
use Friendica\BaseModule;
use Friendica\Core\Logger;
use Friendica\Core\System;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Model\User;
use Friendica\Module\BaseApi;
use Friendica\Protocol\ActivityPub;
use Friendica\Util\HTTPSignature;
use Friendica\Util\Network;
@ -33,9 +34,35 @@ use Friendica\Util\Network;
/**
* ActivityPub Inbox
*/
class Inbox extends BaseModule
class Inbox extends BaseApi
{
protected function rawContent(array $request = [])
{
self::checkAllowedScope(self::SCOPE_READ);
$uid = self::getCurrentUserID();
$page = $request['page'] ?? null;
if (empty($page) && empty($request['max_id'])) {
$page = 1;
}
if (!empty($this->parameters['nickname'])) {
$owner = User::getOwnerDataByNick($this->parameters['nickname']);
if (empty($owner)) {
throw new \Friendica\Network\HTTPException\NotFoundException();
}
if ($owner['uid'] != $uid) {
throw new \Friendica\Network\HTTPException\ForbiddenException();
}
$outbox = ActivityPub\Transmitter::getInbox($uid, $page, $request['max_id'] ?? null);
} else {
$outbox = ActivityPub\Transmitter::getPublicInbox($uid, $page, $request['max_id'] ?? null);
}
System::jsonExit($outbox, 'application/activity+json');
}
protected function post(array $request = [])
{
$postdata = Network::postdata();

13
src/Module/ActivityPub/Outbox.php
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@ -21,16 +21,16 @@
namespace Friendica\Module\ActivityPub;
use Friendica\BaseModule;
use Friendica\Core\System;
use Friendica\Model\User;
use Friendica\Module\BaseApi;
use Friendica\Protocol\ActivityPub;
use Friendica\Util\HTTPSignature;
/**
* ActivityPub Outbox
*/
class Outbox extends BaseModule
class Outbox extends BaseApi
{
protected function rawContent(array $request = [])
{
@ -43,10 +43,15 @@ class Outbox extends BaseModule
throw new \Friendica\Network\HTTPException\NotFoundException();
}
$page = !empty($request['page']) ? (int)$request['page'] : null;
$uid = self::getCurrentUserID();
$page = $request['page'] ?? null;
if (empty($page) && empty($request['max_id']) && !empty($uid)) {
$page = 1;
}
$requester = HTTPSignature::getSigner('', $_SERVER);
$outbox = ActivityPub\Transmitter::getOutbox($owner, $page, $requester);
$outbox = ActivityPub\Transmitter::getOutbox($owner, $page, $request['max_id'] ?? null, $requester);
System::jsonExit($outbox, 'application/activity+json');
}

105
src/Module/ActivityPub/Whoami.php Normal file
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@ -0,0 +1,105 @@
<?php
/**
* @copyright Copyright (C) 2010-2023, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
* This program 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.
*
* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Module\ActivityPub;
use Friendica\Content\Text\BBCode;
use Friendica\Core\System;
use Friendica\DI;
use Friendica\Model\User;
use Friendica\Module\BaseApi;
use Friendica\Protocol\ActivityPub;
/**
* Dummy class for all currently unimplemented endpoints
*/
class Whoami extends BaseApi
{
/**
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
protected function rawContent(array $request = [])
{
self::checkAllowedScope(self::SCOPE_READ);
$uid = self::getCurrentUserID();
$owner = User::getOwnerDataById($uid);
$data = ['@context' => ActivityPub::CONTEXT];
$data['id'] = $owner['url'];
$data['url'] = $owner['url'];
$data['type'] = ActivityPub::ACCOUNT_TYPES[$owner['account-type']];
$data['name'] = $owner['name'];
$data['preferredUsername'] = $owner['nick'];
$data['alsoKnownAs'] = [];
$data['manuallyApprovesFollowers'] = in_array($owner['page-flags'], [User::PAGE_FLAGS_NORMAL, User::PAGE_FLAGS_PRVGROUP]);
$data['discoverable'] = (bool)$owner['net-publish'];
$data['tag'] = [];
$data['icon'] = [
'type' => 'Image',
'url' => User::getAvatarUrl($owner)
];
if (!empty($owner['about'])) {
$data['summary'] = BBCode::convertForUriId($owner['uri-id'] ?? 0, $owner['about'], BBCode::EXTERNAL);
}
$custom_fields = [];
foreach (DI::profileField()->selectByContactId(0, $uid) as $profile_field) {
$custom_fields[] = [
'type' => 'PropertyValue',
'name' => $profile_field->label,
'value' => BBCode::convertForUriId($owner['uri-id'], $profile_field->value)
];
};
if (!empty($custom_fields)) {
$data['attachment'] = $custom_fields;
}
$data['publicKey'] = [
'id' => $owner['url'] . '#main-key',
'owner' => $owner['url'],
'publicKeyPem' => $owner['pubkey']
];
$data['capabilities'] = [];
$data['inbox'] = DI::baseUrl() . '/inbox/' . $owner['nick'];
$data['outbox'] = DI::baseUrl() . '/outbox/' . $owner['nick'];
$data['featured'] = DI::baseUrl() . '/featured/' . $owner['nick'];
$data['followers'] = DI::baseUrl() . '/followers/' . $owner['nick'];
$data['following'] = DI::baseUrl() . '/following/' . $owner['nick'];
$data['endpoints'] = [
'oauthAuthorizationEndpoint' => DI::baseUrl() . '/oauth/authorize',
'oauthRegistrationEndpoint' => DI::baseUrl() . '/api/v1/apps',
'oauthTokenEndpoint' => DI::baseUrl() . '/oauth/token',
'sharedInbox' => DI::baseUrl() . '/inbox',
'uploadMedia' => DI::baseUrl() . '/api/upload_media' // @todo Endpoint does not exist at the moment
];
$data['generator'] = ActivityPub\Transmitter::getService();
System::jsonExit($data, 'application/activity+json');
}
}

8
src/Module/OAuth/Token.php
View file

@ -25,6 +25,7 @@ use Friendica\Core\Logger;
use Friendica\Core\System;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Model\User;
use Friendica\Module\BaseApi;
use Friendica\Module\Special\HTTPException;
use Friendica\Security\OAuth;
@ -85,22 +86,25 @@ class Token extends BaseApi
// the "client_credentials" are used as a token for the application itself.
// see https://aaronparecki.com/oauth-2-simplified/#client-credentials
$token = OAuth::createTokenForUser($application, 0, '');
$me = null;
} elseif ($request['grant_type'] == 'authorization_code') {
// For security reasons only allow freshly created tokens
$condition = ["`redirect_uri` = ? AND `id` = ? AND `code` = ? AND `created_at` > ?",
$request['redirect_uri'], $application['id'], $request['code'], DateTimeFormat::utc('now - 5 minutes')];
$token = DBA::selectFirst('application-view', ['access_token', 'created_at'], $condition);
$token = DBA::selectFirst('application-view', ['access_token', 'created_at', 'uid'], $condition);
if (!DBA::isResult($token)) {
Logger::notice('Token not found or outdated', $condition);
DI::mstdnError()->Unauthorized();
}
$owner = User::getOwnerDataById($token['uid']);
$me = $owner['url'];
} else {
Logger::warning('Unsupported or missing grant type', ['request' => $_REQUEST]);
DI::mstdnError()->UnprocessableEntity(DI::l10n()->t('Unsupported or missing grant type'));
}
$object = new \Friendica\Object\Api\Mastodon\Token($token['access_token'], 'Bearer', $application['scopes'], $token['created_at']);
$object = new \Friendica\Object\Api\Mastodon\Token($token['access_token'], 'Bearer', $application['scopes'], $token['created_at'], $me);
System::jsonExit($object->toArray());
}

22
src/Object/Api/Mastodon/Token.php
View file

@ -38,6 +38,8 @@ class Token extends BaseDataTransferObject
protected $scope;
/** @var int (timestamp) */
protected $created_at;
/** @var string */
protected $me;
/**
* Creates a token record
@ -46,12 +48,30 @@ class Token extends BaseDataTransferObject
* @param string $token_type
* @param string $scope
* @param string $created_at
* @param string $me
*/
public function __construct(string $access_token, string $token_type, string $scope, string $created_at)
public function __construct(string $access_token, string $token_type, string $scope, string $created_at, string $me = null)
{
$this->access_token = $access_token;
$this->token_type = $token_type;
$this->scope = $scope;
$this->created_at = strtotime($created_at);
$this->me = $me;
}
/**
* Returns the current entity as an array
*
* @return array
*/
public function toArray(): array
{
$token = parent::toArray();
if (empty($token['me'])) {
unset($token['me']);
}
return $token;
}
}

170
src/Protocol/ActivityPub/Transmitter.php
View file

@ -244,15 +244,16 @@ class Transmitter
*
* @param array $owner Owner array
* @param integer $page Page number
* @param integer $max_id Maximum ID
* @param string $requester URL of requesting account
* @param boolean $nocache Wether to bypass caching
* @return array of posts
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
public static function getOutbox(array $owner, int $page = null, string $requester = '', bool $nocache = false): array
public static function getOutbox(array $owner, int $page = null, int $max_id = null, string $requester = ''): array
{
$condition = ['private' => [Item::PUBLIC, Item::UNLISTED]];
$condition = ['gravity' => [Item::GRAVITY_PARENT, Item::GRAVITY_COMMENT], 'private' => [Item::PUBLIC, Item::UNLISTED]];
if (!empty($requester)) {
$requester_id = Contact::getIdForURL($requester, $owner['uid']);
@ -278,44 +279,86 @@ class Transmitter
$apcontact = APContact::getByURL($owner['url']);
return self::getCollection($condition, DI::baseUrl() . '/outbox/' . $owner['nickname'], $page, $max_id, null, $apcontact['statuses_count']);
}
public static function getInbox(int $uid, int $page = null, int $max_id = null)
{
$owner = User::getOwnerDataById($uid);
$condition = ['gravity' => [Item::GRAVITY_PARENT, Item::GRAVITY_COMMENT], [Protocol::ACTIVITYPUB, Protocol::DFRN], 'uid' => $uid];
return self::getCollection($condition, DI::baseUrl() . '/inbox/' . $owner['nickname'], $page, $max_id, $uid, null);
}
public static function getPublicInbox(int $uid, int $page = null, int $max_id = null)
{
$condition = ['gravity' => [Item::GRAVITY_PARENT, Item::GRAVITY_COMMENT], 'private' => Item::PUBLIC,
'network' => [Protocol::ACTIVITYPUB, Protocol::DFRN], 'author-blocked' => false, 'author-hidden' => false];
return self::getCollection($condition, DI::baseUrl() . '/inbox', $page, $max_id, $uid, null);
}
private static function getCollection(array $condition, string $path, int $page = null, int $max_id = null, int $uid = null, int $total_items = null)
{
$data = ['@context' => ActivityPub::CONTEXT];
$data['id'] = DI::baseUrl() . '/outbox/' . $owner['nickname'];
$data['id'] = $path;
$data['type'] = 'OrderedCollection';
$data['totalItems'] = $apcontact['statuses_count'] ?? 0;
if (!is_null($total_items)) {
$data['totalItems'] = $total_items;
}
if (!empty($page)) {
$data['id'] .= '?' . http_build_query(['page' => $page]);
}
if (empty($page)) {
$data['first'] = DI::baseUrl() . '/outbox/' . $owner['nickname'] . '?page=1';
if (empty($page) && empty($max_id)) {
$data['first'] = $path . '?page=1';
} else {
$data['type'] = 'OrderedCollectionPage';
$list = [];
$items = Post::select(['id'], $condition, ['limit' => [($page - 1) * 20, 20], 'order' => ['created' => true]]);
while ($item = Post::fetch($items)) {
$activity = self::createActivityFromItem($item['id'], true);
$activity['type'] = $activity['type'] == 'Update' ? 'Create' : $activity['type'];
if (!empty($max_id)) {
$condition = DBA::mergeConditions($condition, ["`uri-id` < ?", $max_id]);
}
if (!empty($page)) {
$params = ['limit' => [($page - 1) * 20, 20], 'order' => ['uri-id' => true]];
} else {
$params = ['limit' => 20, 'order' => ['uri-id' => true]];
}
// Only list "Create" activity objects here, no reshares
if (!empty($activity['object']) && ($activity['type'] == 'Create')) {
$list[] = $activity['object'];
if (!is_null($uid)) {
$items = Post::selectForUser($uid, ['id', 'uri-id'], $condition, $params);
} else {
$items = Post::select(['id', 'uri-id'], $condition, $params);
}
$last_id = 0;
while ($item = Post::fetch($items)) {
$activity = self::createActivityFromItem($item['id'], false, !is_null($uid));
if (!empty($activity)) {
$list[] = $activity;
$last_id = $item['uri-id'];
continue;
}
}
DBA::close($items);
if (count($list) == 20) {
$data['next'] = DI::baseUrl() . '/outbox/' . $owner['nickname'] . '?page=' . ($page + 1);
$data['next'] = $path . '?max_id=' . $last_id;
}
// Fix the cached total item count when it is lower than the real count
$total = (($page - 1) * 20) + $data['totalItems'];
if ($total > $data['totalItems']) {
$data['totalItems'] = $total;
if (!is_null($total_items)) {
$total = (($page - 1) * 20) + $data['totalItems'];
if ($total > $data['totalItems']) {
$data['totalItems'] = $total;
}
}
$data['partOf'] = DI::baseUrl() . '/outbox/' . $owner['nickname'];
$data['partOf'] = $path;
$data['orderedItems'] = $list;
}
@ -382,11 +425,8 @@ class Transmitter
while ($item = Post::fetch($items)) {
$activity = self::createActivityFromItem($item['id'], true);
$activity['type'] = $activity['type'] == 'Update' ? 'Create' : $activity['type'];
// Only list "Create" activity objects here, no reshares
if (!empty($activity['object']) && ($activity['type'] == 'Create')) {
$list[] = $activity['object'];
if (!empty($activity)) {
$list[] = $activity;
}
}
DBA::close($items);
@ -413,7 +453,7 @@ class Transmitter
*
* @return array with service data
*/
private static function getService(): array
public static function getService(): array
{
return [
'type' => 'Service',
@ -1231,36 +1271,75 @@ class Transmitter
*
* @param integer $item_id
* @param boolean $object_mode Is the activity item is used inside another object?
* @param boolean $api_mode "true" if used for the API
* @return false|array
* @throws \Exception
*/
public static function createActivityFromItem(int $item_id, bool $object_mode = false)
public static function createActivityFromItem(int $item_id, bool $object_mode = false, $api_mode = false)
{
Logger::info('Fetching activity', ['item' => $item_id]);
$item = Post::selectFirst(Item::DELIVER_FIELDLIST, ['id' => $item_id, 'parent-network' => Protocol::NATIVE_SUPPORT]);
$condition = ['id' => $item_id];
if (!$api_mode) {
$condition['parent-network'] = Protocol::NATIVE_SUPPORT;
}
Logger::info('Fetching activity', $condition);
$item = Post::selectFirst(Item::DELIVER_FIELDLIST, $condition);
if (!DBA::isResult($item)) {
return false;
}
return self::createActivityFromArray($item, $object_mode, $api_mode);
}
/**
* Creates an activity array for a given URI-Id and uid
*
* @param integer $uri_id
* @param integer $uid
* @param boolean $object_mode Is the activity item is used inside another object?
* @param boolean $api_mode "true" if used for the API
* @return false|array
* @throws \Exception
*/
public static function createActivityFromUriId(int $uri_id, int $uid, bool $object_mode = false, $api_mode = false)
{
$condition = ['uri-id' => $uri_id, 'uid' => [0, $uid]];
if (!$api_mode) {
$condition['parent-network'] = Protocol::NATIVE_SUPPORT;
}
Logger::info('Fetching activity', $condition);
$item = Post::selectFirst(Item::DELIVER_FIELDLIST, $condition, ['order' => ['uid' => true]]);
if (!DBA::isResult($item)) {
return false;
}
if (empty($item['uri-id'])) {
Logger::warning('Item without uri-id', ['item' => $item]);
return false;
}
return self::createActivityFromArray($item, $object_mode, $api_mode);
}
if (!$item['deleted']) {
/**
* Creates an activity array for a given item id
*
* @param integer $item_id
* @param boolean $object_mode Is the activity item is used inside another object?
* @param boolean $api_mode "true" if used for the API
* @return false|array
* @throws \Exception
*/
private static function createActivityFromArray(array $item, bool $object_mode = false, $api_mode = false)
{
if (!$item['deleted'] && $item['network'] == Protocol::ACTIVITYPUB) {
$data = Post\Activity::getByURIId($item['uri-id']);
if (!$item['origin'] && !empty($data)) {
if ($object_mode) {
unset($data['@context']);
unset($data['signature']);
if (!$object_mode) {
Logger::info('Return stored conversation', ['item' => $item['id']]);
return $data;
} elseif (!empty($data['object'])) {
Logger::info('Return stored conversation object', ['item' => $item['id']]);
return $data['object'];
}
Logger::info('Return stored conversation', ['item' => $item_id]);
return $data;
}
}
if (!$item['origin'] && empty($object)) {
Logger::debug('Post is not ours and is not stored', ['id' => $item_id, 'uri-id' => $item['uri-id']]);
if (!$api_mode && !$item['origin']) {
Logger::debug('Post is not ours and is not stored', ['id' => $item['id'], 'uri-id' => $item['uri-id']]);
return false;
}
@ -1301,7 +1380,7 @@ class Transmitter
$data = array_merge($data, self::createPermissionBlockForItem($item, false));
if (in_array($data['type'], ['Create', 'Update', 'Delete'])) {
$data['object'] = $object ?? self::createNote($item);
$data['object'] = self::createNote($item);
$data['published'] = DateTimeFormat::utcNow(DateTimeFormat::ATOM);
} elseif ($data['type'] == 'Add') {
$data = self::createAddTag($item, $data);
@ -1314,7 +1393,7 @@ class Transmitter
} elseif ($data['type'] == 'Follow') {
$data['object'] = $item['parent-uri'];
} elseif ($data['type'] == 'Undo') {
$data['object'] = self::createActivityFromItem($item_id, true);
$data['object'] = self::createActivityFromItem($item['id'], true);
} else {
$data['diaspora:guid'] = $item['guid'];
if (!empty($item['signed_text'])) {
@ -1329,12 +1408,11 @@ class Transmitter
$uid = $item['uid'];
}
$owner = User::getOwnerDataById($uid);
Logger::info('Fetched activity', ['item' => $item['id'], 'uid' => $uid]);
Logger::info('Fetched activity', ['item' => $item_id, 'uid' => $uid]);
// We don't sign if we aren't the actor. This is important for relaying content especially for forums
if (!$object_mode && !empty($owner) && ($data['actor'] == $owner['url'])) {
// We only sign our own activities
if (!$api_mode && !$object_mode && $item['origin']) {
$owner = User::getOwnerDataById($uid);
return LDSignature::sign($data, $owner);
} else {
return $data;

1
static/routes.config.php
View file

@ -156,6 +156,7 @@ $apiRoutes = [
'/show[.{extension:json|xml|rss|atom}]' => [Module\Api\Twitter\Users\Show::class, [R::GET ]],
'/show/{id:\d+}[.{extension:json|xml|rss|atom}]' => [Module\Api\Twitter\Users\Show::class, [R::GET ]],
],
'/whoami' => [Module\ActivityPub\Whoami::class, [R::GET ]],
];
return [