146 lines
4.5 KiB
PHP
146 lines
4.5 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2010-2021, the Friendica project
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Module\Debug;
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use Friendica\BaseModule;
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use Friendica\Content\Text;
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use Friendica\Core\Logger;
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use Friendica\Core\Renderer;
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use Friendica\DI;
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use Friendica\Model\Item;
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use Friendica\Model\Tag;
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use Friendica\Protocol\ActivityPub;
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use Friendica\Util\JsonLD;
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use Friendica\Util\XML;
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class ActivityPubConversion extends BaseModule
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{
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public static function content(array $parameters = [])
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{
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function visible_whitespace($s)
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{
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return '<pre>' . htmlspecialchars($s) . '</pre>';
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}
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$results = [];
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if (!empty($_REQUEST['source'])) {
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try {
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$source = json_decode($_REQUEST['source'], true);
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$trust_source = true;
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$uid = local_user();
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$push = false;
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if (!$source) {
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throw new \Exception('Failed to decode source JSON');
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}
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$formatted = json_encode($source, JSON_PRETTY_PRINT);
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$results[] = [
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'title' => DI::l10n()->t('Formatted'),
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'content' => visible_whitespace(trim(var_export($formatted, true), "'")),
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];
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$results[] = [
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'title' => DI::l10n()->t('Source'),
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'content' => visible_whitespace(var_export($source, true))
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];
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$activity = JsonLD::compact($source);
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if (!$activity) {
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throw new \Exception('Failed to compact JSON');
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}
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$results[] = [
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'title' => DI::l10n()->t('Activity'),
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'content' => visible_whitespace(var_export($activity, true))
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];
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$type = JsonLD::fetchElement($activity, '@type');
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if (!$type) {
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throw new \Exception('Empty type');
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}
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if (!JsonLD::fetchElement($activity, 'as:object', '@id')) {
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throw new \Exception('Empty object');
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}
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if (!JsonLD::fetchElement($activity, 'as:actor', '@id')) {
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throw new \Exception('Empty actor');
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}
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// Don't trust the source if "actor" differs from "attributedTo". The content could be forged.
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if ($trust_source && ($type == 'as:Create') && is_array($activity['as:object'])) {
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$actor = JsonLD::fetchElement($activity, 'as:actor', '@id');
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$attributed_to = JsonLD::fetchElement($activity['as:object'], 'as:attributedTo', '@id');
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$trust_source = ($actor == $attributed_to);
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if (!$trust_source) {
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throw new \Exception('Not trusting actor: ' . $actor . '. It differs from attributedTo: ' . $attributed_to);
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}
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}
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// $trust_source is called by reference and is set to true if the content was retrieved successfully
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$object_data = ActivityPub\Receiver::prepareObjectData($activity, $uid, $push, $trust_source);
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if (empty($object_data)) {
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throw new \Exception('No object data found');
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}
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if (!$trust_source) {
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throw new \Exception('No trust for activity type "' . $type . '", so we quit now.');
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}
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if (!empty($body) && empty($object_data['raw'])) {
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$object_data['raw'] = $body;
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}
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// Internal flag for thread completion. See Processor.php
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if (!empty($activity['thread-completion'])) {
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$object_data['thread-completion'] = $activity['thread-completion'];
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}
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$results[] = [
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'title' => DI::l10n()->t('Object data'),
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'content' => visible_whitespace(var_export($object_data, true))
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];
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$item = ActivityPub\Processor::createItem($object_data);
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$results[] = [
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'title' => DI::l10n()->t('Result Item'),
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'content' => visible_whitespace(var_export($item, true))
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];
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} catch (\Throwable $e) {
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$results[] = [
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'title' => DI::l10n()->t('Error'),
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'content' => $e->getMessage(),
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];
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}
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}
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$tpl = Renderer::getMarkupTemplate('debug/activitypubconversion.tpl');
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$o = Renderer::replaceMacros($tpl, [
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'$title' => DI::l10n()->t('ActivityPub Conversion'),
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'$source' => ['source', DI::l10n()->t('Source activity'), $_REQUEST['source'] ?? '', ''],
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'$results' => $results,
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'$submit' => DI::l10n()->t('Submit'),
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]);
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return $o;
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}
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}
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