use Friendica\Core\System;
use Friendica\Database\DBA;
use Friendica\DI;
+use Friendica\Model\Contact;
use Friendica\Model\Item;
use Friendica\Network\HTTPException;
use Friendica\Protocol\ActivityPub;
+use Friendica\Util\HTTPSignature;
use Friendica\Util\Network;
/**
DI::baseUrl()->redirect(str_replace('objects/', 'display/', DI::args()->getQueryString()));
}
- /// @todo Add Authentication to enable fetching of non public content
- // $requester = HTTPSignature::getSigner('', $_SERVER);
+ $item = Item::selectFirst(['id', 'uid', 'origin', 'author-link', 'changed', 'private', 'psid', 'gravity'],
+ ['guid' => $parameters['guid']], ['order' => ['origin' => true]]);
+
+ if (!DBA::isResult($item)) {
+ throw new HTTPException\NotFoundException();
+ }
+
+ $validated = in_array($item['private'], [Item::PUBLIC, Item::UNLISTED]);
+
+ if (!$validated) {
+ $requester = HTTPSignature::getSigner('', $_SERVER);
+ if (!empty($requester) && $item['origin']) {
+ $requester_id = Contact::getIdForURL($requester, $item['uid']);
+ if (!empty($requester_id)) {
+ $permissionSets = DI::permissionSet()->selectByContactId($requester_id, $item['uid']);
+ if (!empty($permissionSets)) {
+ $psid = array_merge($permissionSets->column('id'),
+ [DI::permissionSet()->getIdFromACL($item['uid'], '', '', '', '')]);
+ $validated = in_array($item['psid'], $psid);
+ }
+ }
+ }
+ }
- $item = Item::selectFirst(
- ['id', 'origin', 'author-link', 'changed'],
- [
- 'guid' => $parameters['guid'],
- 'private' => [Item::PUBLIC, Item::UNLISTED]
- ],
- ['order' => ['origin' => true]]
- );
// Valid items are original post or posted from this node (including in the case of a forum)
- if (!DBA::isResult($item) || !$item['origin'] && !strstr($item['author-link'], DI::baseUrl()->get())) {
+ if (!$validated || !$item['origin'] && (parse_url($item['author-link'], PHP_URL_HOST) != parse_url(DI::baseUrl()->get(), PHP_URL_HOST))) {
throw new HTTPException\NotFoundException();
}
$last_modified = $item['changed'];
Network::checkEtagModified($etag, $last_modified);
- $activity = ActivityPub\Transmitter::createActivityFromItem($item['id'], true);
- $activity['type'] = $activity['type'] == 'Update' ? 'Create' : $activity['type'];
+ if (empty($parameters['activity']) && ($item['gravity'] != GRAVITY_ACTIVITY)) {
+ $activity = ActivityPub\Transmitter::createActivityFromItem($item['id'], true);
+ $activity['type'] = $activity['type'] == 'Update' ? 'Create' : $activity['type'];
- // Only display "Create" activity objects here, no reshares or anything else
- if (empty($activity['object']) || ($activity['type'] != 'Create')) {
+ // Only display "Create" activity objects here, no reshares or anything else
+ if (empty($activity['object']) || ($activity['type'] != 'Create')) {
+ throw new HTTPException\NotFoundException();
+ }
+
+ $data = ['@context' => ActivityPub::CONTEXT];
+ $data = array_merge($data, $activity['object']);
+ } elseif (empty($parameters['activity']) || in_array($parameters['activity'],
+ ['Create', 'Announce', 'Update', 'Like', 'Dislike', 'Accept', 'Reject',
+ 'TentativeAccept', 'Follow', 'Add'])) {
+ $data = ActivityPub\Transmitter::createActivityFromItem($item['id']);
+ if (empty($data)) {
+ throw new HTTPException\NotFoundException();
+ }
+ if (!empty($parameters['activity']) && ($parameters['activity'] != 'Create')) {
+ $data['type'] = $parameters['activity'];
+ $data['id'] = str_replace('/Create', '/' . $parameters['activity'], $data['id']);
+ }
+ } else {
throw new HTTPException\NotFoundException();
}
- $data = ['@context' => ActivityPub::CONTEXT];
- $data = array_merge($data, $activity['object']);
-
+ // Relaxed CORS header for public items
+ header('Access-Control-Allow-Origin: *');
System::jsonExit($data, 'application/activity+json');
}
}