New class for c2s activities

This commit is contained in:
Michael 2023-02-13 21:27:11 +00:00
parent 7b871f3ecd
commit 8fe6419d39
4 changed files with 313 additions and 272 deletions

View File

@ -80,6 +80,6 @@ class Outbox extends BaseApi
throw new \Friendica\Network\HTTPException\BadRequestException();
}
System::jsonExit(ActivityPub\Receiver::processC2SActivity($activity, $uid, self::getCurrentApplication() ?? []));
System::jsonExit(ActivityPub\ClientToServer::processActivity($activity, $uid, self::getCurrentApplication() ?? []));
}
}

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@ -0,0 +1,310 @@
<?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\Protocol\ActivityPub;
use Friendica\Content\Text\Markdown;
use Friendica\Core\Logger;
use Friendica\Core\Protocol;
use Friendica\DI;
use Friendica\Model\APContact;
use Friendica\Model\Contact;
use Friendica\Model\Group;
use Friendica\Model\Item;
use Friendica\Model\Post;
use Friendica\Model\User;
use Friendica\Protocol\Activity;
use Friendica\Util\JsonLD;
/**
* ActivityPub Client To Server class
*/
class ClientToServer
{
/**
* Process client to server activities
*
* @param array $activity
* @param integer $uid
* @param array $application
* @return array
*/
public static function processActivity(array $activity, int $uid, array $application): array
{
$ldactivity = JsonLD::compact($activity);
if (empty($ldactivity)) {
Logger::notice('Invalid activity', ['activity' => $activity, 'uid' => $uid]);
return [];
}
$type = JsonLD::fetchElement($ldactivity, '@type');
if (!$type) {
Logger::notice('Empty type', ['activity' => $ldactivity, 'uid' => $uid]);
return [];
}
$object_id = JsonLD::fetchElement($ldactivity, 'as:object', '@id') ?? '';
$object_type = Receiver::fetchObjectType($ldactivity, $object_id, $uid);
if (!$object_type && !$object_id) {
Logger::notice('Empty object type or id', ['activity' => $ldactivity, 'uid' => $uid]);
return [];
}
Logger::debug('Processing activity', ['type' => $type, 'object_type' => $object_type, 'object_id' => $object_id, 'activity' => $ldactivity]);
return self::routeActivities($type, $object_type, $object_id, $uid, $application, $ldactivity);
}
/**
* Route client to server activities
*
* @param string $type
* @param string $object_type
* @param string $object_id
* @param integer $uid
* @param array $application
* @param array $ldactivity
* @return array
*/
private static function routeActivities(string $type, string $object_type, string $object_id, int $uid, array $application, array $ldactivity): array
{
switch ($type) {
case 'as:Create':
if (in_array($object_type, Receiver::CONTENT_TYPES)) {
return self::createContent($uid, $application, $ldactivity);
}
break;
case 'as:Update':
if (in_array($object_type, Receiver::CONTENT_TYPES) && !empty($object_id)) {
return self::updateContent($uid, $object_id, $application, $ldactivity);
}
break;
case 'as:Follow':
if (in_array($object_type, Receiver::ACCOUNT_TYPES) && !empty($object_id)) {
return self::followAccount($uid, $object_id, $ldactivity);
}
break;
}
return [];
}
/**
* Create a new post or comment
*
* @param integer $uid
* @param array $application
* @param array $ldactivity
* @return array
*/
private static function createContent(int $uid, array $application, array $ldactivity): array
{
$object_data = self::processObject($ldactivity['as:object']);
$item = ClientToServer::processContent($object_data, $application, $uid);
Logger::debug('Got data', ['item' => $item, 'object' => $object_data]);
$id = Item::insert($item, true);
if (!empty($id)) {
$item = Post::selectFirst(['uri-id'], ['id' => $id]);
if (!empty($item['uri-id'])) {
return Transmitter::createActivityFromItem($id);
}
}
return [];
}
/**
* Update an existing post or comment
*
* @param integer $uid
* @param string $object_id
* @param array $application
* @param array $ldactivity
* @return array
*/
private static function updateContent(int $uid, string $object_id, array $application, array $ldactivity):array
{
$id = Item::fetchByLink($object_id, $uid);
$original_post = Post::selectFirst(['uri-id'], ['uid' => $uid, 'origin' => true, 'id' => $id]);
if (empty($original_post)) {
Logger::debug('Item not found or does not belong to the user', ['id' => $id, 'uid' => $uid, 'object_id' => $object_id, 'activity' => $ldactivity]);
return [];
}
$object_data = self::processObject($ldactivity['as:object']);
$item = ClientToServer::processContent($object_data, $application, $uid);
if (empty($item['title']) && empty($item['body'])) {
Logger::debug('Empty body and title', ['id' => $id, 'uid' => $uid, 'object_id' => $object_id, 'activity' => $ldactivity]);
return [];
}
$post = ['title' => $item['title'], 'body' => $item['body']];
Logger::debug('Got data', ['id' => $id, 'uid' => $uid, 'item' => $post]);
Item::update($post, ['id' => $id]);
Item::updateDisplayCache($original_post['uri-id']);
return Transmitter::createActivityFromItem($id);
}
/**
* Follow a given account
* @todo Check the expected return value
*
* @param integer $uid
* @param string $object_id
* @param array $ldactivity
* @return array
*/
private static function followAccount(int $uid, string $object_id, array $ldactivity): array
{
return [];
}
/**
* Fetches data from the object part of an client to server activity
*
* @param array $object
*
* @return array Object data
*/
private static function processObject(array $object): array
{
$object_data = Receiver::getObjectDataFromActivity($object);
$object_data['target'] = self::getTargets($object, $object_data['actor'] ?? '');
$object_data['receiver'] = [];
return $object_data;
}
/**
* Accumulate the targets and visibility of this post
*
* @param array $object
* @param string $actor
* @return array
*/
private static function getTargets(array $object, string $actor): array
{
$profile = APContact::getByURL($actor);
$followers = $profile['followers'];
$targets = [];
foreach (['as:to', 'as:cc', 'as:bto', 'as:bcc'] as $element) {
switch ($element) {
case 'as:to':
$type = Receiver::TARGET_TO;
break;
case 'as:cc':
$type = Receiver::TARGET_CC;
break;
case 'as:bto':
$type = Receiver::TARGET_BTO;
break;
case 'as:bcc':
$type = Receiver::TARGET_BCC;
break;
}
$receiver_list = JsonLD::fetchElementArray($object, $element, '@id');
if (empty($receiver_list)) {
continue;
}
foreach ($receiver_list as $receiver) {
if ($receiver == Receiver::PUBLIC_COLLECTION) {
$targets[Receiver::TARGET_GLOBAL] = ($element == 'as:to');
continue;
}
if ($receiver == $followers) {
$targets[Receiver::TARGET_FOLLOWER] = true;
continue;
}
$targets[$type][] = Contact::getIdForURL($receiver);
}
}
return $targets;
}
/**
* Create an item array from client to server object data
*
* @param array $object_data
* @param array $application
* @param integer $uid
* @return array
*/
private static function processContent(array $object_data, array $application, int $uid): array
{
$owner = User::getOwnerDataById($uid);
$item = [];
$item['network'] = Protocol::DFRN;
$item['uid'] = $uid;
$item['verb'] = Activity::POST;
$item['contact-id'] = $owner['id'];
$item['author-id'] = $item['owner-id'] = Contact::getPublicIdByUserId($uid);
$item['title'] = $object_data['name'];
$item['body'] = Markdown::toBBCode($object_data['content']);
$item['app'] = $application['name'] ?? 'API';
if (!empty($object_data['target'][Receiver::TARGET_GLOBAL])) {
$item['allow_cid'] = '';
$item['allow_gid'] = '';
$item['deny_cid'] = '';
$item['deny_gid'] = '';
$item['private'] = Item::PUBLIC;
} elseif (isset($object_data['target'][Receiver::TARGET_GLOBAL])) {
$item['allow_cid'] = '';
$item['allow_gid'] = '';
$item['deny_cid'] = '';
$item['deny_gid'] = '';
$item['private'] = Item::UNLISTED;
} elseif (!empty($object_data['target'][Receiver::TARGET_FOLLOWER])) {
$item['allow_cid'] = '';
$item['allow_gid'] = '<' . Group::FOLLOWERS . '>';
$item['deny_cid'] = '';
$item['deny_gid'] = '';
$item['private'] = Item::PRIVATE;
} else {
// @todo Set permissions via the $object_data['target'] array
$item['allow_cid'] = '<' . $owner['id'] . '>';
$item['allow_gid'] = '';
$item['deny_cid'] = '';
$item['deny_gid'] = '';
$item['private'] = Item::PRIVATE;
}
if (!empty($object_data['summary'])) {
$item['body'] = '[abstract=' . Protocol::ACTIVITYPUB . ']' . $object_data['summary'] . "[/abstract]\n" . $item['body'];
}
if ($object_data['reply-to-id']) {
$item['thr-parent'] = $object_data['reply-to-id'];
$item['gravity'] = Item::GRAVITY_COMMENT;
} else {
$item['gravity'] = Item::GRAVITY_PARENT;
}
$item = DI::contentItem()->expandTags($item);
return $item;
}
}

View File

@ -2144,70 +2144,4 @@ class Processor
return $body;
}
/**
* Create an item array from client to server object data
*
* @param array $object_data
* @param array $application
* @param integer $uid
* @return array
*/
public static function processC2SContent(array $object_data, array $application, int $uid): array
{
$owner = User::getOwnerDataById($uid);
$item = [];
$item['network'] = Protocol::DFRN;
$item['uid'] = $uid;
$item['verb'] = Activity::POST;
$item['contact-id'] = $owner['id'];
$item['author-id'] = $item['owner-id'] = Contact::getPublicIdByUserId($uid);
$item['title'] = $object_data['name'];
$item['body'] = Markdown::toBBCode($object_data['content']);
$item['app'] = $application['name'] ?? 'API';
if (!empty($object_data['target'][Receiver::TARGET_GLOBAL])) {
$item['allow_cid'] = '';
$item['allow_gid'] = '';
$item['deny_cid'] = '';
$item['deny_gid'] = '';
$item['private'] = Item::PUBLIC;
} elseif (isset($object_data['target'][Receiver::TARGET_GLOBAL])) {
$item['allow_cid'] = '';
$item['allow_gid'] = '';
$item['deny_cid'] = '';
$item['deny_gid'] = '';
$item['private'] = Item::UNLISTED;
} elseif (!empty($object_data['target'][Receiver::TARGET_FOLLOWER])) {
$item['allow_cid'] = '';
$item['allow_gid'] = '<' . Group::FOLLOWERS . '>';
$item['deny_cid'] = '';
$item['deny_gid'] = '';
$item['private'] = Item::PRIVATE;
} else {
// @todo Set permissions via the $object_data['target'] array
$item['allow_cid'] = '<' . $owner['id'] . '>';
$item['allow_gid'] = '';
$item['deny_cid'] = '';
$item['deny_gid'] = '';
$item['private'] = Item::PRIVATE;
}
if (!empty($object_data['summary'])) {
$item['body'] = '[abstract=' . Protocol::ACTIVITYPUB . ']' . $object_data['summary'] . "[/abstract]\n" . $item['body'];
}
if ($object_data['reply-to-id']) {
$item['thr-parent'] = $object_data['reply-to-id'];
$item['gravity'] = Item::GRAVITY_COMMENT;
} else {
$item['gravity'] = Item::GRAVITY_PARENT;
}
$item = DI::contentItem()->expandTags($item);
return $item;
}
}

View File

@ -255,7 +255,7 @@ class Receiver
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
private static function fetchObjectType(array $activity, string $object_id, int $uid = 0)
public static function fetchObjectType(array $activity, string $object_id, int $uid = 0)
{
if (!empty($activity['as:object'])) {
$object_type = JsonLD::fetchElement($activity['as:object'], '@type');
@ -1873,23 +1873,6 @@ class Receiver
return $object_data;
}
/**
* Fetches data from the object part of an client to server activity
*
* @param array $object
*
* @return array Object data
*/
private static function processC2SObject(array $object): array
{
$object_data = self::getObjectDataFromActivity($object);
$object_data['target'] = self::getTargets($object, $object_data['actor'] ?? '');
$object_data['receiver'] = [];
return $object_data;
}
/**
* Create an object data array from a given activity
*
@ -1897,7 +1880,7 @@ class Receiver
*
* @return array Object data
*/
private static function getObjectDataFromActivity(array $object): array
public static function getObjectDataFromActivity(array $object): array
{
$object_data = [];
$object_data['object_type'] = JsonLD::fetchElement($object, '@type');
@ -2054,190 +2037,4 @@ class Receiver
{
return DBA::exists('arrived-activity', ['object-id' => $id]);
}
/**
* Process client to server activities
*
* @param array $activity
* @param integer $uid
* @param array $application
* @return array
*/
public static function processC2SActivity(array $activity, int $uid, array $application): array
{
$ldactivity = JsonLD::compact($activity);
if (empty($ldactivity)) {
Logger::notice('Invalid activity', ['activity' => $activity, 'uid' => $uid]);
return [];
}
$type = JsonLD::fetchElement($ldactivity, '@type');
if (!$type) {
Logger::notice('Empty type', ['activity' => $ldactivity, 'uid' => $uid]);
return [];
}
$object_id = JsonLD::fetchElement($ldactivity, 'as:object', '@id') ?? '';
$object_type = self::fetchObjectType($ldactivity, $object_id, $uid);
if (!$object_type && !$object_id) {
Logger::notice('Empty object type or id', ['activity' => $ldactivity, 'uid' => $uid]);
return [];
}
Logger::debug('Processing activity', ['type' => $type, 'object_type' => $object_type, 'object_id' => $object_id, 'activity' => $ldactivity]);
return self::routeC2SActivities($type, $object_type, $object_id, $uid, $application, $ldactivity);
}
/**
* Accumulate the targets and visibility of this post
*
* @param array $object
* @param string $actor
* @return array
*/
private static function getTargets(array $object, string $actor): array
{
$profile = APContact::getByURL($actor);
$followers = $profile['followers'];
$targets = [];
foreach (['as:to', 'as:cc', 'as:bto', 'as:bcc'] as $element) {
switch ($element) {
case 'as:to':
$type = self::TARGET_TO;
break;
case 'as:cc':
$type = self::TARGET_CC;
break;
case 'as:bto':
$type = self::TARGET_BTO;
break;
case 'as:bcc':
$type = self::TARGET_BCC;
break;
}
$receiver_list = JsonLD::fetchElementArray($object, $element, '@id');
if (empty($receiver_list)) {
continue;
}
foreach ($receiver_list as $receiver) {
if ($receiver == self::PUBLIC_COLLECTION) {
$targets[self::TARGET_GLOBAL] = ($element == 'as:to');
continue;
}
if ($receiver == $followers) {
$targets[self::TARGET_FOLLOWER] = true;
continue;
}
$targets[$type][] = Contact::getIdForURL($receiver);
}
}
return $targets;
}
/**
* Route client to server activities
*
* @param string $type
* @param string $object_type
* @param string $object_id
* @param integer $uid
* @param array $application
* @param array $ldactivity
* @return array
*/
private static function routeC2SActivities(string $type, string $object_type, string $object_id, int $uid, array $application, array $ldactivity): array
{
switch ($type) {
case 'as:Create':
if (in_array($object_type, self::CONTENT_TYPES)) {
return self::createContent($uid, $application, $ldactivity);
}
break;
case 'as:Update':
if (in_array($object_type, self::CONTENT_TYPES) && !empty($object_id)) {
return self::updateContent($uid, $object_id, $application, $ldactivity);
}
break;
case 'as:Follow':
if (in_array($object_type, self::ACCOUNT_TYPES) && !empty($object_id)) {
return self::followAccount($uid, $object_id, $ldactivity);
}
break;
}
return [];
}
/**
* Create a new post or comment
*
* @param integer $uid
* @param array $application
* @param array $ldactivity
* @return array
*/
private static function createContent(int $uid, array $application, array $ldactivity): array
{
$object_data = self::processC2SObject($ldactivity['as:object']);
$item = Processor::processC2SContent($object_data, $application, $uid);
Logger::debug('Got data', ['item' => $item, 'object' => $object_data]);
$id = Item::insert($item, true);
if (!empty($id)) {
$item = Post::selectFirst(['uri-id'], ['id' => $id]);
if (!empty($item['uri-id'])) {
return Transmitter::createActivityFromItem($id);
}
}
return [];
}
/**
* Update an existing post or comment
*
* @param integer $uid
* @param string $object_id
* @param array $application
* @param array $ldactivity
* @return array
*/
private static function updateContent(int $uid, string $object_id, array $application, array $ldactivity):array
{
$id = Item::fetchByLink($object_id, $uid);
$original_post = Post::selectFirst(['uri-id'], ['uid' => $uid, 'origin' => true, 'id' => $id]);
if (empty($original_post)) {
Logger::debug('Item not found or does not belong to the user', ['id' => $id, 'uid' => $uid, 'object_id' => $object_id, 'activity' => $ldactivity]);
return [];
}
$object_data = self::processC2SObject($ldactivity['as:object']);
$item = Processor::processC2SContent($object_data, $application, $uid);
if (empty($item['title']) && empty($item['body'])) {
Logger::debug('Empty body and title', ['id' => $id, 'uid' => $uid, 'object_id' => $object_id, 'activity' => $ldactivity]);
return [];
}
$post = ['title' => $item['title'], 'body' => $item['body']];
Logger::debug('Got data', ['id' => $id, 'uid' => $uid, 'item' => $post]);
Item::update($post, ['id' => $id]);
Item::updateDisplayCache($original_post['uri-id']);
return Transmitter::createActivityFromItem($id);
}
/**
* Follow a given account
* @todo Check the expected return value
*
* @param integer $uid
* @param string $object_id
* @param array $ldactivity
* @return array
*/
private static function followAccount(int $uid, string $object_id, array $ldactivity): array
{
return [];
}
}