3 * @copyright Copyright (C) 2010-2022, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Protocol;
28 use Friendica\Content\Text\BBCode;
29 use Friendica\Content\Text\HTML;
30 use Friendica\Core\Cache\Enum\Duration;
31 use Friendica\Core\Logger;
32 use Friendica\Core\Protocol;
33 use Friendica\Database\DBA;
35 use Friendica\Model\APContact;
36 use Friendica\Model\Contact;
37 use Friendica\Model\Conversation;
38 use Friendica\Model\Item;
39 use Friendica\Model\ItemURI;
40 use Friendica\Model\Post;
41 use Friendica\Model\Tag;
42 use Friendica\Model\User;
43 use Friendica\Network\HTTPClient\Client\HttpClientAccept;
44 use Friendica\Network\Probe;
45 use Friendica\Util\DateTimeFormat;
46 use Friendica\Util\Images;
47 use Friendica\Util\Proxy;
48 use Friendica\Util\Strings;
49 use Friendica\Util\XML;
52 * This class contain functions for the OStatus protocol
56 private static $itemlist;
57 private static $conv_list = [];
62 * @param DOMXPath $xpath The xpath object
63 * @param object $context The xml context of the author details
64 * @param array $importer user record of the importing user
65 * @param array $contact Called by reference, will contain the fetched contact
66 * @param bool $onlyfetch Only fetch the header without updating the contact entries
68 * @return array Array of author related entries for the item
69 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
70 * @throws \ImagickException
72 private static function fetchAuthor(DOMXPath $xpath, $context, array $importer, array &$contact = null, bool $onlyfetch): array
75 $author['author-link'] = XML::getFirstNodeValue($xpath, 'atom:author/atom:uri/text()', $context);
76 $author['author-name'] = XML::getFirstNodeValue($xpath, 'atom:author/atom:name/text()', $context);
77 $addr = XML::getFirstNodeValue($xpath, 'atom:author/atom:email/text()', $context);
79 $aliaslink = $author['author-link'];
81 $alternate_item = $xpath->query("atom:author/atom:link[@rel='alternate']", $context)->item(0);
82 if (is_object($alternate_item)) {
83 foreach ($alternate_item->attributes as $attributes) {
84 if (($attributes->name == 'href') && ($attributes->textContent != '')) {
85 $author['author-link'] = $attributes->textContent;
89 $author['author-id'] = Contact::getIdForURL($author['author-link']);
91 $author['contact-id'] = ($contact['id'] ?? 0) ?: $author['author-id'];
96 This here would be better, but we would get problems with contacts from the statusnet addon
97 This is kept here as a reminder for the future
99 $cid = Contact::getIdForURL($author['author-link'], $importer['uid']);
101 $contact = DBA::selectFirst('contact', [], ['id' => $cid]);
104 if ($aliaslink != '') {
105 $contact = DBA::selectFirst('contact', [], [
106 "`uid` = ? AND `alias` = ? AND `network` != ? AND `rel` IN (?, ?)",
108 $aliaslink, Protocol::STATUSNET,
109 Contact::SHARING, Contact::FRIEND,
113 if (!DBA::isResult($contact) && $author['author-link'] != '') {
114 if ($aliaslink == '') {
115 $aliaslink = $author['author-link'];
118 $contact = DBA::selectFirst('contact', [], [
119 "`uid` = ? AND `nurl` IN (?, ?) AND `network` != ? AND `rel` IN (?, ?)",
121 Strings::normaliseLink($author['author-link']),
122 Strings::normaliseLink($aliaslink),
129 if (!DBA::isResult($contact) && ($addr != '')) {
130 $contact = DBA::selectFirst('contact', [], [
131 "`uid` = ? AND `addr` = ? AND `network` != ? AND `rel` IN (?, ?)",
140 if (DBA::isResult($contact)) {
141 if ($contact['blocked']) {
143 } elseif (!empty(APContact::getByURL($contact['url'], false))) {
144 ActivityPub\Receiver::switchContact($contact['id'], $importer['uid'], $contact['url']);
146 $author['contact-id'] = $contact['id'];
150 $avatars = $xpath->query("atom:author/atom:link[@rel='avatar']", $context);
151 foreach ($avatars as $avatar) {
154 foreach ($avatar->attributes as $attributes) {
155 if ($attributes->name == 'href') {
156 $href = $attributes->textContent;
158 if ($attributes->name == 'width') {
159 $width = $attributes->textContent;
163 $avatarlist[$width] = $href;
166 if (count($avatarlist) > 0) {
168 $author['author-avatar'] = Probe::fixAvatar(current($avatarlist), $author['author-link']);
171 $displayname = XML::getFirstNodeValue($xpath, 'atom:author/poco:displayName/text()', $context);
172 if ($displayname != '') {
173 $author['author-name'] = $displayname;
176 $author['owner-id'] = $author['author-id'];
178 // Only update the contacts if it is an OStatus contact
179 if (DBA::isResult($contact) && ($contact['id'] > 0) && !$onlyfetch && ($contact['network'] == Protocol::OSTATUS)) {
181 // Update contact data
183 unset($current['name-date']);
185 // This query doesn't seem to work
186 // $value = $xpath->query("atom:link[@rel='salmon']", $context)->item(0)->nodeValue;
188 // $contact["notify"] = $value;
190 // This query doesn't seem to work as well - I hate these queries
191 // $value = $xpath->query("atom:link[@rel='self' and @type='application/atom+xml']", $context)->item(0)->nodeValue;
193 // $contact["poll"] = $value;
195 $contact['url'] = $author['author-link'];
196 $contact['nurl'] = Strings::normaliseLink($contact['url']);
198 $value = XML::getFirstNodeValue($xpath, 'atom:author/atom:uri/text()', $context);
200 $contact['alias'] = $value;
203 $value = XML::getFirstNodeValue($xpath, 'atom:author/poco:displayName/text()', $context);
205 $contact['name'] = $value;
208 $value = XML::getFirstNodeValue($xpath, 'atom:author/poco:preferredUsername/text()', $context);
210 $contact['nick'] = $value;
213 $value = XML::getFirstNodeValue($xpath, 'atom:author/poco:note/text()', $context);
215 $contact['about'] = HTML::toBBCode($value);
218 $value = XML::getFirstNodeValue($xpath, 'atom:author/poco:address/poco:formatted/text()', $context);
220 $contact['location'] = $value;
223 $contact['name-date'] = DateTimeFormat::utcNow();
225 Contact::update($contact, ['id' => $contact['id']], $current);
227 if (!empty($author['author-avatar']) && ($author['author-avatar'] != $current['avatar'])) {
228 Logger::info('Update profile picture for contact ' . $contact['id']);
229 Contact::updateAvatar($contact['id'], $author['author-avatar']);
232 // Ensure that we are having this contact (with uid=0)
233 $cid = Contact::getIdForURL($aliaslink);
236 $fields = ['url', 'nurl', 'name', 'nick', 'alias', 'about', 'location'];
237 $old_contact = DBA::selectFirst('contact', $fields, ['id' => $cid]);
239 // Update it with the current values
241 'url' => $author['author-link'],
242 'name' => $contact['name'],
243 'nurl' => Strings::normaliseLink($author['author-link']),
244 'nick' => $contact['nick'],
245 'alias' => $contact['alias'],
246 'about' => $contact['about'],
247 'location' => $contact['location'],
248 'success_update' => DateTimeFormat::utcNow(),
249 'last-update' => DateTimeFormat::utcNow(),
252 Contact::update($fields, ['id' => $cid], $old_contact);
255 if (!empty($author['author-avatar'])) {
256 Contact::updateAvatar($cid, $author['author-avatar']);
259 } elseif (empty($contact['network']) || ($contact['network'] != Protocol::DFRN)) {
267 * Fetches author data from a given XML string
269 * @param string $xml The XML
270 * @param array $importer user record of the importing user
272 * @return array Array of author related entries for the item
273 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
274 * @throws \ImagickException
276 public static function salmonAuthor(string $xml, array $importer): array
282 $doc = new DOMDocument();
283 @$doc->loadXML($xml);
285 $xpath = new DOMXPath($doc);
286 $xpath->registerNamespace('atom', ActivityNamespace::ATOM1);
287 $xpath->registerNamespace('thr', ActivityNamespace::THREAD);
288 $xpath->registerNamespace('georss', ActivityNamespace::GEORSS);
289 $xpath->registerNamespace('activity', ActivityNamespace::ACTIVITY);
290 $xpath->registerNamespace('media', ActivityNamespace::MEDIA);
291 $xpath->registerNamespace('poco', ActivityNamespace::POCO);
292 $xpath->registerNamespace('ostatus', ActivityNamespace::OSTATUS);
293 $xpath->registerNamespace('statusnet', ActivityNamespace::STATUSNET);
295 $contact = ['id' => 0];
297 // Fetch the first author
298 $authordata = $xpath->query('//author')->item(0);
299 $author = self::fetchAuthor($xpath, $authordata, $importer, $contact, true);
304 * Read attributes from element
306 * @param object $element Element object
307 * @return array attributes
309 private static function readAttributes($element): array
313 foreach ($element->attributes as $attributes) {
314 $attribute[$attributes->name] = $attributes->textContent;
321 * Imports an XML string containing OStatus elements
323 * @param string $xml The XML
324 * @param array $importer user record of the importing user
325 * @param array $contact contact
326 * @param string $hub Called by reference, returns the fetched hub data
328 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
329 * @throws \ImagickException
331 public static function import($xml, array $importer, array &$contact, &$hub)
333 self::process($xml, $importer, $contact, $hub, false, true, Conversation::PUSH);
337 * Internal feed processing
339 * @param string $xml The XML
340 * @param array $importer user record of the importing user
341 * @param array $contact contact
342 * @param string $hub Called by reference, returns the fetched hub data
343 * @param boolean $stored Is the post fresh imported or from the database?
344 * @param boolean $initialize Is it the leading post so that data has to be initialized?
345 * @param integer $direction Direction, default UNKNOWN(0)
346 * @return boolean Could the XML be processed?
347 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
348 * @throws \ImagickException
350 private static function process(string $xml, array $importer, array &$contact = null, string &$hub, bool $stored = false, bool $initialize = true, int $direction = Conversation::UNKNOWN)
353 self::$itemlist = [];
354 self::$conv_list = [];
357 Logger::info('Import OStatus message for user ' . $importer['uid']);
363 $doc = new DOMDocument();
364 @$doc->loadXML($xml);
366 $xpath = new DOMXPath($doc);
367 $xpath->registerNamespace('atom', ActivityNamespace::ATOM1);
368 $xpath->registerNamespace('thr', ActivityNamespace::THREAD);
369 $xpath->registerNamespace('georss', ActivityNamespace::GEORSS);
370 $xpath->registerNamespace('activity', ActivityNamespace::ACTIVITY);
371 $xpath->registerNamespace('media', ActivityNamespace::MEDIA);
372 $xpath->registerNamespace('poco', ActivityNamespace::POCO);
373 $xpath->registerNamespace('ostatus', ActivityNamespace::OSTATUS);
374 $xpath->registerNamespace('statusnet', ActivityNamespace::STATUSNET);
377 $hub_items = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0);
378 if (is_object($hub_items)) {
379 $hub_attributes = $hub_items->attributes;
380 if (is_object($hub_attributes)) {
381 foreach ($hub_attributes as $hub_attribute) {
382 if ($hub_attribute->name == 'href') {
383 $hub = $hub_attribute->textContent;
384 Logger::info('Found hub ', ['hub' => $hub]);
391 $header['uid'] = $importer['uid'];
392 $header['network'] = Protocol::OSTATUS;
394 $header['origin'] = 0;
395 $header['gravity'] = GRAVITY_COMMENT;
397 if (!is_object($doc->firstChild) || empty($doc->firstChild->tagName)) {
401 $first_child = $doc->firstChild->tagName;
403 if ($first_child == 'feed') {
404 $entries = $xpath->query('/atom:feed/atom:entry');
406 $entries = $xpath->query('/atom:entry');
409 if ($entries->length == 1) {
410 // We reformat the XML to make it better readable
411 $doc2 = new DOMDocument();
412 $doc2->loadXML($xml);
413 $doc2->preserveWhiteSpace = false;
414 $doc2->formatOutput = true;
415 $xml2 = $doc2->saveXML();
417 $header['protocol'] = Conversation::PARCEL_SALMON;
418 $header['source'] = $xml2;
419 $header['direction'] = $direction;
420 } elseif (!$initialize) {
424 // Fetch the first author
425 $authordata = $xpath->query('//author')->item(0);
426 $author = self::fetchAuthor($xpath, $authordata, $importer, $contact, $stored);
428 // Reverse the order of the entries
431 foreach ($entries as $entry) {
432 $entrylist[] = $entry;
435 foreach (array_reverse($entrylist) as $entry) {
437 $authorelement = $xpath->query('/atom:entry/atom:author', $entry);
439 if ($authorelement->length == 0) {
440 $authorelement = $xpath->query('atom:author', $entry);
443 if ($authorelement->length > 0) {
444 $author = self::fetchAuthor($xpath, $entry, $importer, $contact, $stored);
447 $item = array_merge($header, $author);
449 $item['uri'] = XML::getFirstNodeValue($xpath, 'atom:id/text()', $entry);
450 $item['uri-id'] = ItemURI::insert(['uri' => $item['uri']]);
452 $item['verb'] = XML::getFirstNodeValue($xpath, 'activity:verb/text()', $entry);
455 if (in_array($item['verb'], ['qvitter-delete-notice', Activity::DELETE, 'delete'])) {
456 self::deleteNotice($item);
460 if (in_array($item['verb'], [Activity::O_UNFAVOURITE, Activity::UNFAVORITE])) {
461 // Ignore "Unfavorite" message
462 Logger::info('Ignore unfavorite message ', ['item' => $item]);
466 // Deletions come with the same uri, so we check for duplicates after processing deletions
467 if (Post::exists(['uid' => $importer['uid'], 'uri' => $item['uri']])) {
468 Logger::info('Post with URI ' . $item['uri'] . ' already existed for user ' . $importer['uid'] . '.');
471 Logger::info('Processing post with URI ' . $item['uri'] . ' for user ' . $importer['uid'] . '.');
474 if ($item['verb'] == Activity::JOIN) {
475 // ignore "Join" messages
476 Logger::info('Ignore join message ', ['item' => $item]);
480 if ($item['verb'] == 'http://mastodon.social/schema/1.0/block') {
481 // ignore mastodon "block" messages
482 Logger::info('Ignore block message ', ['item' => $item]);
486 if ($item['verb'] == Activity::FOLLOW) {
487 Contact::addRelationship($importer, $contact, $item);
491 if ($item['verb'] == Activity::O_UNFOLLOW) {
493 Contact::removeFollower($contact);
497 if ($item['verb'] == Activity::FAVORITE) {
498 $orig_uri = $xpath->query('activity:object/atom:id', $entry)->item(0)->nodeValue;
499 Logger::notice('Favorite', ['uri' => $orig_uri, 'item' => $item]);
501 $item['verb'] = Activity::LIKE;
502 $item['thr-parent'] = $orig_uri;
503 $item['gravity'] = GRAVITY_ACTIVITY;
504 $item['object-type'] = Activity\ObjectType::NOTE;
507 // http://activitystrea.ms/schema/1.0/rsvp-yes
508 if (!in_array($item['verb'], [Activity::POST, Activity::LIKE, Activity::SHARE])) {
509 Logger::info('Unhandled verb', ['verb' => $item['verb'], 'item' => $item]);
512 self::processPost($xpath, $entry, $item, $importer);
514 if ($initialize && (count(self::$itemlist) > 0)) {
515 if (self::$itemlist[0]['uri'] == self::$itemlist[0]['thr-parent']) {
516 $uid = self::$itemlist[0]['uid'];
517 // We will import it everytime, when it is started by our contacts
518 $valid = Contact::isSharingByURL(self::$itemlist[0]['author-link'], $uid);
521 // If not, then it depends on this setting
522 $valid = !$uid || DI::pConfig()->get($uid, 'system', 'accept_only_sharer') != Item::COMPLETION_NONE;
525 Logger::info('Item with URI ' . self::$itemlist[0]['uri'] . ' will be imported due to the system settings.');
528 Logger::info('Item with URI ' . self::$itemlist[0]['uri'] . ' belongs to a contact (' . self::$itemlist[0]['contact-id'] . '). It will be imported.');
531 if ($valid && DI::pConfig()->get($uid, 'system', 'accept_only_sharer') != Item::COMPLETION_LIKE) {
532 // Never post a thread when the only interaction by our contact was a like
534 $verbs = [Activity::POST, Activity::SHARE];
535 foreach (self::$itemlist as $item) {
536 if (in_array($item['verb'], $verbs) && Contact::isSharingByURL($item['author-link'], $item['uid'])) {
541 Logger::info('Item with URI ' . self::$itemlist[0]['uri'] . ' will be imported since the thread contains posts or shares.');
549 $default_contact = 0;
550 for ($key = count(self::$itemlist) - 1; $key >= 0; $key--) {
551 if (empty(self::$itemlist[$key]['contact-id'])) {
552 self::$itemlist[$key]['contact-id'] = $default_contact;
554 $default_contact = $item['contact-id'];
557 foreach (self::$itemlist as $item) {
558 $found = Post::exists(['uid' => $importer['uid'], 'uri' => $item['uri']]);
560 Logger::notice('Item with URI ' . $item['uri'] . ' for user ' . $importer['uid'] . ' already exists.');
561 } elseif ($item['contact-id'] < 0) {
562 Logger::notice('Item with URI ' . $item['uri'] . ' is from a blocked contact.');
564 $ret = Item::insert($item);
565 Logger::info('Item with URI ' . $item['uri'] . ' for user ' . $importer['uid'] . ' stored. Return value: ' . $ret);
569 self::$itemlist = [];
571 Logger::info('Processing done for post with URI ' . $item['uri'] . ' for user '.$importer['uid'] . '.');
577 * Removes notice item from database
579 * @param array $item item
583 private static function deleteNotice(array $item)
585 $condition = ['uid' => $item['uid'], 'author-id' => $item['author-id'], 'uri' => $item['uri']];
586 if (!Post::exists($condition)) {
587 Logger::notice('Item from ' . $item['author-link'] . ' with uri ' . $item['uri'] . ' for user ' . $item['uid'] . " wasn't found. We don't delete it.");
591 Item::markForDeletion($condition);
593 Logger::notice('Deleted item with URI ' . $item['uri'] . ' for user ' . $item['uid']);
597 * Processes the XML for a post
599 * @param DOMXPath $xpath The xpath object
600 * @param object $entry The xml entry that is processed
601 * @param array $item The item array
602 * @param array $importer user record of the importing user
604 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
605 * @throws \ImagickException
607 private static function processPost(DOMXPath $xpath, $entry, array &$item, array $importer)
609 $item['body'] = HTML::toBBCode(XML::getFirstNodeValue($xpath, 'atom:content/text()', $entry));
610 $item['object-type'] = XML::getFirstNodeValue($xpath, 'activity:object-type/text()', $entry);
611 if (($item['object-type'] == Activity\ObjectType::BOOKMARK) || ($item['object-type'] == Activity\ObjectType::EVENT)) {
612 $item['title'] = XML::getFirstNodeValue($xpath, 'atom:title/text()', $entry);
613 $item['body'] = XML::getFirstNodeValue($xpath, 'atom:summary/text()', $entry);
614 } elseif ($item['object-type'] == Activity\ObjectType::QUESTION) {
615 $item['title'] = XML::getFirstNodeValue($xpath, 'atom:title/text()', $entry);
618 $item['created'] = XML::getFirstNodeValue($xpath, 'atom:published/text()', $entry);
619 $item['edited'] = XML::getFirstNodeValue($xpath, 'atom:updated/text()', $entry);
620 $item['conversation'] = XML::getFirstNodeValue($xpath, 'ostatus:conversation/text()', $entry);
622 $conv = $xpath->query('ostatus:conversation', $entry);
623 if (is_object($conv->item(0))) {
624 foreach ($conv->item(0)->attributes as $attributes) {
625 if ($attributes->name == 'ref') {
626 $item['conversation'] = $attributes->textContent;
628 if ($attributes->name == 'href') {
629 $item['conversation'] = $attributes->textContent;
636 $inreplyto = $xpath->query('thr:in-reply-to', $entry);
637 if (is_object($inreplyto->item(0))) {
638 foreach ($inreplyto->item(0)->attributes as $attributes) {
639 if ($attributes->name == 'ref') {
640 $item['thr-parent'] = $attributes->textContent;
642 if ($attributes->name == 'href') {
643 $related = $attributes->textContent;
648 $georsspoint = $xpath->query('georss:point', $entry);
649 if (!empty($georsspoint) && ($georsspoint->length > 0)) {
650 $item['coord'] = $georsspoint->item(0)->nodeValue;
653 $categories = $xpath->query('atom:category', $entry);
655 foreach ($categories as $category) {
656 foreach ($category->attributes as $attributes) {
657 if ($attributes->name == 'term') {
659 Tag::store($item['uri-id'], Tag::HASHTAG, $attributes->textContent);
668 $links = $xpath->query('atom:link', $entry);
670 $link_data = self::processLinks($links, $item);
671 $self = $link_data['self'];
672 $add_body = $link_data['add_body'];
677 $notice_info = $xpath->query('statusnet:notice_info', $entry);
678 if ($notice_info && ($notice_info->length > 0)) {
679 foreach ($notice_info->item(0)->attributes as $attributes) {
680 if ($attributes->name == 'source') {
681 $item['app'] = strip_tags($attributes->textContent);
683 if ($attributes->name == 'repeat_of') {
684 $repeat_of = $attributes->textContent;
688 // Is it a repeated post?
689 if (($repeat_of != '') || ($item['verb'] == Activity::SHARE)) {
690 $link_data = self::processRepeatedItem($xpath, $entry, $item, $importer);
691 if (!empty($link_data['add_body'])) {
692 $add_body .= $link_data['add_body'];
696 $item['body'] .= $add_body;
698 Tag::storeFromBody($item['uri-id'], $item['body']);
700 // Mastodon Content Warning
701 if (($item['verb'] == Activity::POST) && $xpath->evaluate('boolean(atom:summary)', $entry)) {
702 $clear_text = XML::getFirstNodeValue($xpath, 'atom:summary/text()', $entry);
703 if (!empty($clear_text)) {
704 $item['content-warning'] = HTML::toBBCode($clear_text);
708 if (isset($item['thr-parent'])) {
709 if (!Post::exists(['uid' => $importer['uid'], 'uri' => $item['thr-parent']])) {
710 if ($related != '') {
711 self::fetchRelated($related, $item['thr-parent'], $importer);
714 Logger::info('Reply with URI ' . $item['uri'] . ' already existed for user ' . $importer['uid'] . '.');
717 $item['thr-parent'] = $item['uri'];
718 $item['gravity'] = GRAVITY_PARENT;
721 self::$itemlist[] = $item;
725 * Fetch related posts and processes them
727 * @param string $related The link to the related item
728 * @param string $related_uri The related item in "uri" format
729 * @param array $importer user record of the importing user
731 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
732 * @throws \ImagickException
734 private static function fetchRelated(string $related, string $related_uri, array $importer)
737 $curlResult = DI::httpClient()->get($related, HttpClientAccept::ATOM_XML);
739 if (!$curlResult->isSuccess() || empty($curlResult->getBody())) {
745 if ($curlResult->inHeader('Content-Type') &&
746 in_array('application/atom+xml', $curlResult->getHeader('Content-Type'))) {
747 Logger::info('Directly fetched XML for URI ' . $related_uri);
748 $xml = $curlResult->getBody();
752 $doc = new DOMDocument();
753 if (!@$doc->loadHTML($curlResult->getBody())) {
756 $xpath = new DOMXPath($doc);
760 $links = $xpath->query('//link');
762 foreach ($links as $link) {
763 $attribute = self::readAttributes($link);
764 if (($attribute['rel'] == 'alternate') && ($attribute['type'] == 'application/atom+xml')) {
765 $atom_file = $attribute['href'];
768 if ($atom_file != '') {
769 $curlResult = DI::httpClient()->get($atom_file, HttpClientAccept::ATOM_XML);
771 if ($curlResult->isSuccess()) {
772 Logger::info('Fetched XML for URI ' . $related_uri);
773 $xml = $curlResult->getBody();
779 // Workaround for older GNU Social servers
780 if (($xml == '') && strstr($related, '/notice/')) {
781 $curlResult = DI::httpClient()->get(str_replace('/notice/', '/api/statuses/show/', $related) . '.atom', HttpClientAccept::ATOM_XML);
783 if ($curlResult->isSuccess()) {
784 Logger::info('GNU Social workaround to fetch XML for URI ' . $related_uri);
785 $xml = $curlResult->getBody();
789 // Even more worse workaround for GNU Social ;-)
791 $related_guess = self::convertHref($related_uri);
792 $curlResult = DI::httpClient()->get(str_replace('/notice/', '/api/statuses/show/', $related_guess) . '.atom', HttpClientAccept::ATOM_XML);
794 if ($curlResult->isSuccess()) {
795 Logger::info('GNU Social workaround 2 to fetch XML for URI ' . $related_uri);
796 $xml = $curlResult->getBody();
802 self::process($xml, $importer, $contact, $hub, $stored, false, Conversation::PULL);
804 Logger::info('XML could not be fetched for URI: ' . $related_uri . ' - href: ' . $related);
810 * Processes the XML for a repeated post
812 * @param DOMXPath $xpath The xpath object
813 * @param object $entry The xml entry that is processed
814 * @param array $item The item array
815 * @param array $importer user record of the importing user
817 * @return array with data from links
818 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
819 * @throws \ImagickException
821 private static function processRepeatedItem(DOMXPath $xpath, $entry, array &$item, array $importer): array
823 $activityobject = $xpath->query('activity:object', $entry)->item(0);
825 if (!is_object($activityobject)) {
831 $orig_uri = XML::getFirstNodeValue($xpath, 'atom:id/text()', $activityobject);
833 $links = $xpath->query('atom:link', $activityobject);
835 $link_data = self::processLinks($links, $item);
838 $orig_body = XML::getFirstNodeValue($xpath, 'atom:content/text()', $activityobject);
839 $orig_created = XML::getFirstNodeValue($xpath, 'atom:published/text()', $activityobject);
840 $orig_edited = XML::getFirstNodeValue($xpath, 'atom:updated/text()', $activityobject);
842 $orig_author = self::fetchAuthor($xpath, $activityobject, $importer, $dummy, false);
844 $item['author-name'] = $orig_author['author-name'];
845 $item['author-link'] = $orig_author['author-link'];
846 $item['author-id'] = $orig_author['author-id'];
848 $item['body'] = HTML::toBBCode($orig_body);
849 $item['created'] = $orig_created;
850 $item['edited'] = $orig_edited;
852 $item['uri'] = $orig_uri;
854 $item['verb'] = XML::getFirstNodeValue($xpath, 'activity:verb/text()', $activityobject);
856 $item['object-type'] = XML::getFirstNodeValue($xpath, 'activity:object-type/text()', $activityobject);
858 // Mastodon Content Warning
859 if (($item['verb'] == Activity::POST) && $xpath->evaluate('boolean(atom:summary)', $activityobject)) {
860 $clear_text = XML::getFirstNodeValue($xpath, 'atom:summary/text()', $activityobject);
861 if (!empty($clear_text)) {
862 $item['content-warning'] = HTML::toBBCode($clear_text);
866 $inreplyto = $xpath->query('thr:in-reply-to', $activityobject);
867 if (is_object($inreplyto->item(0))) {
868 foreach ($inreplyto->item(0)->attributes as $attributes) {
869 if ($attributes->name == 'ref') {
870 $item['thr-parent'] = $attributes->textContent;
879 * Processes links in the XML
881 * @param object $links The xml data that contain links
882 * @param array $item The item array
883 * @return array with data from the links
885 private static function processLinks($links, array &$item): array
887 $link_data = ['add_body' => '', 'self' => ''];
889 foreach ($links as $link) {
890 $attribute = self::readAttributes($link);
892 if (!empty($attribute['rel']) && !empty($attribute['href'])) {
893 switch ($attribute['rel']) {
895 $item['plink'] = $attribute['href'];
896 if (($item['object-type'] == Activity\ObjectType::QUESTION)
897 || ($item['object-type'] == Activity\ObjectType::EVENT)
899 Post\Media::insert(['uri-id' => $item['uri-id'], 'type' => Post\Media::UNKNOWN,
900 'url' => $attribute['href'], 'mimetype' => $attribute['type'] ?? null,
901 'size' => $attribute['length'] ?? null, 'description' => $attribute['title'] ?? null]);
905 case 'ostatus:conversation':
906 $link_data['conversation'] = $attribute['href'];
907 $item['conversation'] = $link_data['conversation'];
911 $filetype = strtolower(substr($attribute['type'], 0, strpos($attribute['type'], '/')));
912 if ($filetype == 'image') {
913 $link_data['add_body'] .= "\n[img]".$attribute['href'].'[/img]';
915 Post\Media::insert(['uri-id' => $item['uri-id'], 'type' => Post\Media::DOCUMENT,
916 'url' => $attribute['href'], 'mimetype' => $attribute['type'],
917 'size' => $attribute['length'] ?? null, 'description' => $attribute['title'] ?? null]);
922 if ($item['object-type'] != Activity\ObjectType::BOOKMARK) {
923 if (!isset($item['thr-parent'])) {
924 $item['thr-parent'] = $attribute['href'];
926 $link_data['related'] = $attribute['href'];
928 Post\Media::insert(['uri-id' => $item['uri-id'], 'type' => Post\Media::UNKNOWN,
929 'url' => $attribute['href'], 'mimetype' => $attribute['type'] ?? null,
930 'size' => $attribute['length'] ?? null, 'description' => $attribute['title'] ?? null]);
935 if (empty($item['plink'])) {
936 $item['plink'] = $attribute['href'];
938 $link_data['self'] = $attribute['href'];
942 Logger::notice('Unsupported rel=' . $attribute['rel'] . ', href=' . $attribute['href'] . ', object-type=' . $item['object-type']);
950 * Create an url out of an uri
952 * @param string $href URI in the format "parameter1:parameter1:..."
953 * @return string URL in the format http(s)://....
955 private static function convertHref(string $href): string
957 $elements = explode(':', $href);
959 if ((count($elements) <= 2) || ($elements[0] != 'tag')) {
963 $server = explode(',', $elements[1]);
964 $conversation = explode('=', $elements[2]);
966 if ((count($elements) == 4) && ($elements[2] == 'post')) {
967 return 'http://' . $server[0] . '/notice/' . $elements[3];
970 if ((count($conversation) != 2) || ($conversation[1] == '')) {
974 if ($elements[3] == 'objectType=thread') {
975 return 'http://' . $server[0] . '/conversation/' . $conversation[1];
977 return 'http://' . $server[0] . '/notice/' . $conversation[1];
982 * Cleans the body of a post if it contains picture links
984 * @param string $body The body
985 * @param integer $uriId
986 * @return string The cleaned body
987 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
989 public static function formatPicturePost(string $body, int $uriid): string
991 $siteinfo = BBCode::getAttachedData($body);
993 if (($siteinfo['type'] == 'photo') && (!empty($siteinfo['preview']) || !empty($siteinfo['image']))) {
994 if (isset($siteinfo['preview'])) {
995 $preview = $siteinfo['preview'];
997 $preview = $siteinfo['image'];
1000 // Is it a remote picture? Then make a smaller preview here
1001 $preview = Post\Link::getByLink($uriid, $preview, Proxy::SIZE_SMALL);
1003 // Is it a local picture? Then make it smaller here
1004 $preview = str_replace(['-0.jpg', '-0.png'], ['-2.jpg', '-2.png'], $preview);
1005 $preview = str_replace(['-1.jpg', '-1.png'], ['-2.jpg', '-2.png'], $preview);
1007 if (isset($siteinfo['url'])) {
1008 $url = $siteinfo['url'];
1010 $url = $siteinfo['image'];
1013 $body = trim($siteinfo['text']) . ' [url]' . $url . "[/url]\n[img]" . $preview . '[/img]';
1020 * Adds the header elements to the XML document
1022 * @param DOMDocument $doc XML document
1023 * @param array $owner Contact data of the poster
1024 * @param string $filter The related feed filter (activity, posts or comments)
1026 * @return DOMElement Header root element
1027 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1029 private static function addHeader(DOMDocument $doc, array $owner, string $filter): DOMElement
1031 $root = $doc->createElementNS(ActivityNamespace::ATOM1, 'feed');
1032 $doc->appendChild($root);
1034 $root->setAttribute('xmlns:thr', ActivityNamespace::THREAD);
1035 $root->setAttribute('xmlns:georss', ActivityNamespace::GEORSS);
1036 $root->setAttribute('xmlns:activity', ActivityNamespace::ACTIVITY);
1037 $root->setAttribute('xmlns:media', ActivityNamespace::MEDIA);
1038 $root->setAttribute('xmlns:poco', ActivityNamespace::POCO);
1039 $root->setAttribute('xmlns:ostatus', ActivityNamespace::OSTATUS);
1040 $root->setAttribute('xmlns:statusnet', ActivityNamespace::STATUSNET);
1041 $root->setAttribute('xmlns:mastodon', ActivityNamespace::MASTODON);
1044 $selfUri = '/feed/' . $owner['nick'] . '/';
1047 $title = DI::l10n()->t('%s\'s timeline', $owner['name']);
1048 $selfUri .= $filter;
1052 $title = DI::l10n()->t('%s\'s posts', $owner['name']);
1056 $title = DI::l10n()->t('%s\'s comments', $owner['name']);
1057 $selfUri .= $filter;
1061 $selfUri = '/dfrn_poll/' . $owner['nick'];
1064 'uri' => 'https://friendi.ca',
1065 'version' => App::VERSION . '-' . DB_UPDATE_VERSION,
1067 XML::addElement($doc, $root, 'generator', App::PLATFORM, $attributes);
1068 XML::addElement($doc, $root, 'id', DI::baseUrl() . '/profile/' . $owner['nick']);
1069 XML::addElement($doc, $root, 'title', $title);
1070 XML::addElement($doc, $root, 'subtitle', sprintf("Updates from %s on %s", $owner['name'], DI::config()->get('config', 'sitename')));
1071 XML::addElement($doc, $root, 'logo', User::getAvatarUrl($owner, Proxy::SIZE_SMALL));
1072 XML::addElement($doc, $root, 'updated', DateTimeFormat::utcNow(DateTimeFormat::ATOM));
1074 $author = self::addAuthor($doc, $owner, true);
1075 $root->appendChild($author);
1078 'href' => $owner['url'],
1079 'rel' => 'alternate',
1080 'type' => 'text/html',
1082 XML::addElement($doc, $root, 'link', '', $attributes);
1084 /// @TODO We have to find out what this is
1085 /// $attributes = array("href" => DI::baseUrl()."/sup",
1086 /// "rel" => "http://api.friendfeed.com/2008/03#sup",
1087 /// "type" => "application/json");
1088 /// XML::addElement($doc, $root, "link", "", $attributes);
1090 self::addHubLink($doc, $root, $owner['nick']);
1092 $attributes = ['href' => DI::baseUrl() . '/salmon/' . $owner['nick'], 'rel' => 'salmon'];
1093 XML::addElement($doc, $root, 'link', '', $attributes);
1095 $attributes = ['href' => DI::baseUrl() . '/salmon/' . $owner['nick'], 'rel' => 'http://salmon-protocol.org/ns/salmon-replies'];
1096 XML::addElement($doc, $root, 'link', '', $attributes);
1098 $attributes = ['href' => DI::baseUrl() . '/salmon/' . $owner['nick'], 'rel' => 'http://salmon-protocol.org/ns/salmon-mention'];
1099 XML::addElement($doc, $root, 'link', '', $attributes);
1101 $attributes = ['href' => DI::baseUrl() . $selfUri, 'rel' => 'self', 'type' => 'application/atom+xml'];
1102 XML::addElement($doc, $root, 'link', '', $attributes);
1104 if ($owner['contact-type'] == Contact::TYPE_COMMUNITY) {
1105 $members = DBA::count('contact', [
1106 'uid' => $owner['uid'],
1113 XML::addElement($doc, $root, 'statusnet:group_info', '', ['member_count' => $members]);
1120 * Add the link to the push hubs to the XML document
1122 * @param DOMDocument $doc XML document
1123 * @param DOMElement $root XML root element where the hub links are added
1124 * @param string $nick Nickname
1126 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1128 public static function addHubLink(DOMDocument $doc, DOMElement $root, string $nick)
1130 $h = DI::baseUrl() . '/pubsubhubbub/' . $nick;
1131 XML::addElement($doc, $root, 'link', '', ['href' => $h, 'rel' => 'hub']);
1135 * Adds attachment data to the XML document
1137 * @param DOMDocument $doc XML document
1138 * @param DOMElement $root XML root element where the hub links are added
1139 * @param array $item Data of the item that is to be posted
1141 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1143 public static function getAttachment(DOMDocument $doc, DOMElement $root, array $item)
1145 $siteinfo = BBCode::getAttachedData($item['body']);
1147 switch ($siteinfo['type']) {
1149 if (!empty($siteinfo['image'])) {
1150 $imgdata = Images::getInfoFromURLCached($siteinfo['image']);
1153 'rel' => 'enclosure',
1154 'href' => $siteinfo['image'],
1155 'type' => $imgdata['mime'],
1156 'length' => intval($imgdata['size']),
1158 XML::addElement($doc, $root, 'link', '', $attributes);
1165 'rel' => 'enclosure',
1166 'href' => $siteinfo['url'],
1167 'type' => 'text/html; charset=UTF-8',
1169 'title' => ($siteinfo['title'] ?? '') ?: $siteinfo['url'],
1171 XML::addElement($doc, $root, 'link', '', $attributes);
1175 if (!DI::config()->get('system', 'ostatus_not_attach_preview') && ($siteinfo['type'] != 'photo') && isset($siteinfo['image'])) {
1176 $imgdata = Images::getInfoFromURLCached($siteinfo['image']);
1179 'rel' => 'enclosure',
1180 'href' => $siteinfo['image'],
1181 'type' => $imgdata['mime'],
1182 'length' => intval($imgdata['size']),
1185 XML::addElement($doc, $root, 'link', '', $attributes);
1189 foreach (Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT, Post\Media::TORRENT, Post\Media::UNKNOWN]) as $attachment) {
1190 $attributes = ['rel' => 'enclosure',
1191 'href' => $attachment['url'],
1192 'type' => $attachment['mimetype']];
1194 if (!empty($attachment['size'])) {
1195 $attributes['length'] = intval($attachment['size']);
1197 if (!empty($attachment['description'])) {
1198 $attributes['title'] = $attachment['description'];
1201 XML::addElement($doc, $root, 'link', '', $attributes);
1206 * Adds the author element to the XML document
1208 * @param DOMDocument $doc XML document
1209 * @param array $owner Contact data of the poster
1210 * @param bool $show_profile Whether to show profile
1211 * @return DOMElement Author element
1212 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1214 private static function addAuthor(DOMDocument $doc, array $owner, bool $show_profile = true): DOMElement
1216 $profile = DBA::selectFirst('profile', ['homepage', 'publish'], ['uid' => $owner['uid']]);
1217 $author = $doc->createElement('author');
1218 XML::addElement($doc, $author, 'id', $owner['url']);
1219 if ($owner['contact-type'] == Contact::TYPE_COMMUNITY) {
1220 XML::addElement($doc, $author, 'activity:object-type', Activity\ObjectType::GROUP);
1222 XML::addElement($doc, $author, 'activity:object-type', Activity\ObjectType::PERSON);
1225 XML::addElement($doc, $author, 'uri', $owner['url']);
1226 XML::addElement($doc, $author, 'name', $owner['nick']);
1227 XML::addElement($doc, $author, 'email', $owner['addr']);
1228 if ($show_profile) {
1229 XML::addElement($doc, $author, 'summary', BBCode::convertForUriId($owner['uri-id'], $owner['about'], BBCode::OSTATUS));
1233 'rel' => 'alternate',
1234 'type' => 'text/html',
1235 'href' => $owner['url'],
1237 XML::addElement($doc, $author, 'link', '', $attributes);
1241 'type' => 'image/jpeg', // To-Do?
1242 'media:width' => Proxy::PIXEL_SMALL,
1243 'media:height' => Proxy::PIXEL_SMALL,
1244 'href' => User::getAvatarUrl($owner, Proxy::SIZE_SMALL),
1246 XML::addElement($doc, $author, 'link', '', $attributes);
1248 if (isset($owner['thumb'])) {
1251 'type' => 'image/jpeg', // To-Do?
1252 'media:width' => Proxy::PIXEL_THUMB,
1253 'media:height' => Proxy::PIXEL_THUMB,
1254 'href' => User::getAvatarUrl($owner, Proxy::SIZE_THUMB),
1256 XML::addElement($doc, $author, 'link', '', $attributes);
1259 XML::addElement($doc, $author, 'poco:preferredUsername', $owner['nick']);
1260 XML::addElement($doc, $author, 'poco:displayName', $owner['name']);
1261 if ($show_profile) {
1262 XML::addElement($doc, $author, 'poco:note', BBCode::convertForUriId($owner['uri-id'], $owner['about'], BBCode::OSTATUS));
1264 if (trim($owner['location']) != '') {
1265 $element = $doc->createElement('poco:address');
1266 XML::addElement($doc, $element, 'poco:formatted', $owner['location']);
1267 $author->appendChild($element);
1271 if (DBA::isResult($profile) && !$show_profile) {
1272 if (trim($profile['homepage']) != '') {
1273 $urls = $doc->createElement('poco:urls');
1274 XML::addElement($doc, $urls, 'poco:type', 'homepage');
1275 XML::addElement($doc, $urls, 'poco:value', $profile['homepage']);
1276 XML::addElement($doc, $urls, 'poco:primary', 'true');
1277 $author->appendChild($urls);
1280 XML::addElement($doc, $author, 'followers', '', ['url' => DI::baseUrl() . '/profile/' . $owner['nick'] . '/contacts/followers']);
1281 XML::addElement($doc, $author, 'statusnet:profile_info', '', ['local_id' => $owner['uid']]);
1283 if ($profile['publish']) {
1284 XML::addElement($doc, $author, 'mastodon:scope', 'public');
1292 * @TODO Picture attachments should look like this:
1293 * <a href="https://status.pirati.ca/attachment/572819" title="https://status.pirati.ca/file/heluecht-20151202T222602-rd3u49p.gif"
1294 * class="attachment thumbnail" id="attachment-572819" rel="nofollow external">https://status.pirati.ca/attachment/572819</a>
1298 * Returns the given activity if present - otherwise returns the "post" activity
1300 * @param array $item Data of the item that is to be posted
1301 * @return string activity
1303 public static function constructVerb(array $item): string
1305 if (!empty($item['verb'])) {
1306 return $item['verb'];
1309 return Activity::POST;
1313 * Returns the given object type if present - otherwise returns the "note" object type
1315 * @param array $item Data of the item that is to be posted
1316 * @return string Object type
1318 private static function constructObjecttype(array $item): string
1320 if (!empty($item['object-type']) && in_array($item['object-type'], [Activity\ObjectType::NOTE, Activity\ObjectType::COMMENT])) {
1321 return $item['object-type'];
1324 return Activity\ObjectType::NOTE;
1328 * Adds an entry element to the XML document
1330 * @param DOMDocument $doc XML document
1331 * @param array $item Data of the item that is to be posted
1332 * @param array $owner Contact data of the poster
1333 * @param bool $toplevel optional default false
1335 * @return DOMElement Entry element
1336 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1337 * @throws \ImagickException
1339 private static function entry(DOMDocument $doc, array $item, array $owner, bool $toplevel = false): DOMElement
1341 if ($item['verb'] == Activity::LIKE) {
1342 return self::likeEntry($doc, $item, $owner, $toplevel);
1343 } elseif (in_array($item['verb'], [Activity::FOLLOW, Activity::O_UNFOLLOW])) {
1344 return self::followEntry($doc, $item, $owner, $toplevel);
1346 return self::noteEntry($doc, $item, $owner, $toplevel);
1351 * Adds an entry element with a "like"
1353 * @param DOMDocument $doc XML document
1354 * @param array $item Data of the item that is to be posted
1355 * @param array $owner Contact data of the poster
1356 * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1357 * @return DOMElement Entry element with "like"
1358 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1359 * @throws \ImagickException
1361 private static function likeEntry(DOMDocument $doc, array $item, array $owner, bool $toplevel): DOMElement
1363 if (($item['gravity'] != GRAVITY_PARENT) && (Strings::normaliseLink($item['author-link']) != Strings::normaliseLink($owner['url']))) {
1364 Logger::info('OStatus entry is from author ' . $owner['url'] . ' - not from ' . $item['author-link'] . '. Quitting.');
1367 $entry = self::entryHeader($doc, $owner, $item, $toplevel);
1369 $verb = ActivityNamespace::ACTIVITY_SCHEMA . 'favorite';
1370 self::entryContent($doc, $entry, $item, $owner, 'Favorite', $verb, false);
1372 $parent = Post::selectFirst([], ['uri' => $item['thr-parent'], 'uid' => $item['uid']]);
1373 if (DBA::isResult($parent)) {
1374 $as_object = $doc->createElement('activity:object');
1376 XML::addElement($doc, $as_object, 'activity:object-type', self::constructObjecttype($parent));
1378 self::entryContent($doc, $as_object, $parent, $owner, 'New entry');
1380 $entry->appendChild($as_object);
1383 self::entryFooter($doc, $entry, $item, $owner);
1389 * Adds the person object element to the XML document
1391 * @param DOMDocument $doc XML document
1392 * @param array $owner Contact data of the poster
1393 * @param array $contact Contact data of the target
1394 * @return DOMElement author element
1396 private static function addPersonObject(DOMDocument $doc, array $owner, array $contact): DOMElement
1398 $object = $doc->createElement('activity:object');
1399 XML::addElement($doc, $object, 'activity:object-type', Activity\ObjectType::PERSON);
1401 if ($contact['network'] == Protocol::PHANTOM) {
1402 XML::addElement($doc, $object, 'id', $contact['url']);
1406 XML::addElement($doc, $object, 'id', $contact['alias']);
1407 XML::addElement($doc, $object, 'title', $contact['nick']);
1409 XML::addElement($doc, $object, 'link', '', [
1410 'rel' => 'alternate',
1411 'type' => 'text/html',
1412 'href' => $contact['url'],
1417 'type' => 'image/jpeg', // To-Do?
1418 'media:width' => 300,
1419 'media:height' => 300,
1420 'href' => $contact['photo'],
1422 XML::addElement($doc, $object, 'link', '', $attributes);
1424 XML::addElement($doc, $object, 'poco:preferredUsername', $contact['nick']);
1425 XML::addElement($doc, $object, 'poco:displayName', $contact['name']);
1427 if (trim($contact['location']) != '') {
1428 $element = $doc->createElement('poco:address');
1429 XML::addElement($doc, $element, 'poco:formatted', $contact['location']);
1430 $object->appendChild($element);
1437 * Adds a follow/unfollow entry element
1439 * @param DOMDocument $doc XML document
1440 * @param array $item Data of the follow/unfollow message
1441 * @param array $owner Contact data of the poster
1442 * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1443 * @return DOMElement Entry element
1444 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1445 * @throws \ImagickException
1447 private static function followEntry(DOMDocument $doc, array $item, array $owner, bool $toplevel): DOMElement
1449 $item['id'] = $item['parent'] = 0;
1450 $item['created'] = $item['edited'] = date('c');
1451 $item['private'] = Item::PRIVATE;
1453 $contact = Contact::getByURL($item['follow']);
1454 $item['follow'] = $contact['url'];
1456 if ($contact['alias']) {
1457 $item['follow'] = $contact['alias'];
1459 $contact['alias'] = $contact['url'];
1462 $condition = ['uid' => $owner['uid'], 'nurl' => Strings::normaliseLink($contact['url'])];
1463 $user_contact = DBA::selectFirst('contact', ['id'], $condition);
1465 if (DBA::isResult($user_contact)) {
1466 $connect_id = $user_contact['id'];
1471 if ($item['verb'] == Activity::FOLLOW) {
1472 $message = DI::l10n()->t('%s is now following %s.');
1473 $title = DI::l10n()->t('following');
1474 $action = 'subscription';
1476 $message = DI::l10n()->t('%s stopped following %s.');
1477 $title = DI::l10n()->t('stopped following');
1478 $action = 'unfollow';
1481 $item['uri'] = $item['parent-uri'] = $item['thr-parent']
1482 = 'tag:' . DI::baseUrl()->getHostname().
1483 ','.date('Y-m-d').':'.$action.':'.$owner['uid'].
1484 ':person:'.$connect_id.':'.$item['created'];
1486 $item['body'] = sprintf($message, $owner['nick'], $contact['nick']);
1488 $entry = self::entryHeader($doc, $owner, $item, $toplevel);
1490 self::entryContent($doc, $entry, $item, $owner, $title);
1492 $object = self::addPersonObject($doc, $owner, $contact);
1493 $entry->appendChild($object);
1495 self::entryFooter($doc, $entry, $item, $owner);
1501 * Adds a regular entry element
1503 * @param DOMDocument $doc XML document
1504 * @param array $item Data of the item that is to be posted
1505 * @param array $owner Contact data of the poster
1506 * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1507 * @return DOMElement Entry element
1508 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1509 * @throws \ImagickException
1511 private static function noteEntry(DOMDocument $doc, array $item, array $owner, bool $toplevel): DOMElement
1513 if (($item['gravity'] != GRAVITY_PARENT) && (Strings::normaliseLink($item['author-link']) != Strings::normaliseLink($owner['url']))) {
1514 Logger::info('OStatus entry is from author ' . $owner['url'] . ' - not from ' . $item['author-link'] . '. Quitting.');
1518 if (!empty($item['title'])) {
1519 $title = BBCode::convertForUriId($item['uri-id'], $item['title'], BBCode::OSTATUS);
1521 $title = sprintf('New note by %s', $owner['nick']);
1524 $title = sprintf('New comment by %s', $owner['nick']);
1527 $entry = self::entryHeader($doc, $owner, $item, $toplevel);
1529 XML::addElement($doc, $entry, 'activity:object-type', Activity\ObjectType::NOTE);
1531 self::entryContent($doc, $entry, $item, $owner, $title, '', true);
1533 self::entryFooter($doc, $entry, $item, $owner, true);
1539 * Adds a header element to the XML document
1541 * @param DOMDocument $doc XML document
1542 * @param array $owner Contact data of the poster
1543 * @param array $item
1544 * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1545 * @return DOMElement The entry element where the elements are added
1546 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1547 * @throws \ImagickException
1549 public static function entryHeader(DOMDocument $doc, array $owner, array $item, bool $toplevel): DOMElement
1552 $entry = $doc->createElement('entry');
1554 if ($owner['contact-type'] == Contact::TYPE_COMMUNITY) {
1555 $contact = Contact::getByURL($item['author-link']) ?: $owner;
1556 $contact['nickname'] = $contact['nickname'] ?? $contact['nick'];
1557 $author = self::addAuthor($doc, $contact, false);
1558 $entry->appendChild($author);
1561 $entry = $doc->createElementNS(ActivityNamespace::ATOM1, 'entry');
1563 $entry->setAttribute('xmlns:thr', ActivityNamespace::THREAD);
1564 $entry->setAttribute('xmlns:georss', ActivityNamespace::GEORSS);
1565 $entry->setAttribute('xmlns:activity', ActivityNamespace::ACTIVITY);
1566 $entry->setAttribute('xmlns:media', ActivityNamespace::MEDIA);
1567 $entry->setAttribute('xmlns:poco', ActivityNamespace::POCO);
1568 $entry->setAttribute('xmlns:ostatus', ActivityNamespace::OSTATUS);
1569 $entry->setAttribute('xmlns:statusnet', ActivityNamespace::STATUSNET);
1570 $entry->setAttribute('xmlns:mastodon', ActivityNamespace::MASTODON);
1572 $author = self::addAuthor($doc, $owner);
1573 $entry->appendChild($author);
1580 * Adds elements to the XML document
1582 * @param DOMDocument $doc XML document
1583 * @param DOMElement $entry Entry element where the content is added
1584 * @param array $item Data of the item that is to be posted
1585 * @param array $owner Contact data of the poster
1586 * @param string $title Title for the post
1587 * @param string $verb The activity verb
1588 * @param bool $complete Add the "status_net" element?
1590 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1592 private static function entryContent(DOMDocument $doc, DOMElement $entry, array $item, array $owner, string $title, string $verb = '', bool $complete = true)
1595 $verb = self::constructVerb($item);
1598 XML::addElement($doc, $entry, 'id', $item['uri']);
1599 XML::addElement($doc, $entry, 'title', html_entity_decode($title, ENT_QUOTES, 'UTF-8'));
1601 $body = Post\Media::addAttachmentsToBody($item['uri-id'], $item['body']);
1602 $body = self::formatPicturePost($body, $item['uri-id']);
1604 if (!empty($item['title'])) {
1605 $body = '[b]' . $item['title'] . "[/b]\n\n" . $body;
1608 $body = BBCode::convertForUriId($item['uri-id'], $body, BBCode::OSTATUS);
1610 XML::addElement($doc, $entry, 'content', $body, ['type' => 'html']);
1612 XML::addElement($doc, $entry, 'link', '', [
1613 'rel' => 'alternate',
1614 'type' => 'text/html',
1615 'href' => DI::baseUrl() . '/display/' . $item['guid'],
1618 if ($complete && ($item['id'] > 0)) {
1619 XML::addElement($doc, $entry, 'status_net', '', ['notice_id' => $item['id']]);
1622 XML::addElement($doc, $entry, 'activity:verb', $verb);
1624 XML::addElement($doc, $entry, 'published', DateTimeFormat::utc($item['created'] . '+00:00', DateTimeFormat::ATOM));
1625 XML::addElement($doc, $entry, 'updated', DateTimeFormat::utc($item['edited'] . '+00:00', DateTimeFormat::ATOM));
1629 * Adds the elements at the foot of an entry to the XML document
1631 * @param DOMDocument $doc XML document
1632 * @param object $entry The entry element where the elements are added
1633 * @param array $item Data of the item that is to be posted
1634 * @param array $owner Contact data of the poster
1635 * @param bool $complete default true
1637 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1639 private static function entryFooter(DOMDocument $doc, $entry, array $item, array $owner, bool $complete = true)
1643 if ($item['gravity'] != GRAVITY_PARENT) {
1644 $parent = Post::selectFirst(['guid', 'author-link', 'owner-link'], ['id' => $item['parent']]);
1646 $thrparent = Post::selectFirst(['guid', 'author-link', 'owner-link', 'plink'], ['uid' => $owner['uid'], 'uri' => $item['thr-parent']]);
1648 if (DBA::isResult($thrparent)) {
1649 $mentioned[$thrparent['author-link']] = $thrparent['author-link'];
1650 $mentioned[$thrparent['owner-link']] = $thrparent['owner-link'];
1651 $parent_plink = $thrparent['plink'];
1652 } elseif (DBA::isResult($parent)) {
1653 $mentioned[$parent['author-link']] = $parent['author-link'];
1654 $mentioned[$parent['owner-link']] = $parent['owner-link'];
1655 $parent_plink = DI::baseUrl() . '/display/' . $parent['guid'];
1657 DI::logger()->notice('Missing parent and thr-parent for child item', ['item' => $item]);
1660 if (isset($parent_plink)) {
1662 'ref' => $item['thr-parent'],
1663 'href' => $parent_plink];
1664 XML::addElement($doc, $entry, 'thr:in-reply-to', '', $attributes);
1668 'href' => $parent_plink];
1669 XML::addElement($doc, $entry, 'link', '', $attributes);
1673 if (intval($item['parent']) > 0) {
1674 $conversation_href = $conversation_uri = $item['conversation'];
1676 XML::addElement($doc, $entry, 'link', '', ['rel' => 'ostatus:conversation', 'href' => $conversation_href]);
1679 'href' => $conversation_href,
1680 'local_id' => $item['parent'],
1681 'ref' => $conversation_uri,
1684 XML::addElement($doc, $entry, 'ostatus:conversation', $conversation_uri, $attributes);
1687 // uri-id isn't present for follow entry pseudo-items
1688 $tags = Tag::getByURIId($item['uri-id'] ?? 0);
1689 foreach ($tags as $tag) {
1690 $mentioned[$tag['url']] = $tag['url'];
1693 // Make sure that mentions are accepted (GNU Social has problems with mixing HTTP and HTTPS)
1695 foreach ($mentioned as $mention) {
1696 $newmentions[str_replace('http://', 'https://', $mention)] = str_replace('http://', 'https://', $mention);
1697 $newmentions[str_replace('https://', 'http://', $mention)] = str_replace('https://', 'http://', $mention);
1699 $mentioned = $newmentions;
1701 foreach ($mentioned as $mention) {
1702 $contact = Contact::getByURL($mention, false, ['contact-type']);
1703 if (!empty($contact) && ($contact['contact-type'] == Contact::TYPE_COMMUNITY)) {
1704 XML::addElement($doc, $entry, 'link', '', [
1705 'rel' => 'mentioned',
1706 'ostatus:object-type' => Activity\ObjectType::GROUP,
1710 XML::addElement($doc, $entry, 'link', '', [
1711 'rel' => 'mentioned',
1712 'ostatus:object-type' => Activity\ObjectType::PERSON,
1718 if ($owner['contact-type'] == Contact::TYPE_COMMUNITY) {
1719 XML::addElement($doc, $entry, 'link', '', [
1720 'rel' => 'mentioned',
1721 'ostatus:object-type' => 'http://activitystrea.ms/schema/1.0/group',
1722 'href' => $owner['url']
1726 if ($item['private'] != Item::PRIVATE) {
1727 XML::addElement($doc, $entry, 'link', '', ['rel' => 'ostatus:attention',
1728 'href' => 'http://activityschema.org/collection/public']);
1729 XML::addElement($doc, $entry, 'link', '', ['rel' => 'mentioned',
1730 'ostatus:object-type' => 'http://activitystrea.ms/schema/1.0/collection',
1731 'href' => 'http://activityschema.org/collection/public']);
1732 XML::addElement($doc, $entry, 'mastodon:scope', 'public');
1735 foreach ($tags as $tag) {
1736 if ($tag['type'] == Tag::HASHTAG) {
1737 XML::addElement($doc, $entry, 'category', '', ['term' => $tag['name']]);
1741 self::getAttachment($doc, $entry, $item);
1743 if ($complete && ($item['id'] > 0)) {
1744 $app = $item['app'];
1749 $attributes = ['local_id' => $item['id'], 'source' => $app];
1751 if (isset($parent['id'])) {
1752 $attributes['repeat_of'] = $parent['id'];
1755 if ($item['coord'] != '') {
1756 XML::addElement($doc, $entry, 'georss:point', $item['coord']);
1759 XML::addElement($doc, $entry, 'statusnet:notice_info', '', $attributes);
1764 * Creates the XML feed for a given nickname
1766 * Supported filters:
1767 * - activity (default): all the public posts
1768 * - posts: all the public top-level posts
1769 * - comments: all the public replies
1771 * Updates the provided last_update parameter if the result comes from the
1772 * cache or it is empty
1774 * @param string $owner_nick Nickname of the feed owner
1775 * @param string $last_update Date of the last update (in "Y-m-d H:i:s" format)
1776 * @param integer $max_items Number of maximum items to fetch
1777 * @param string $filter Feed items filter (activity, posts or comments)
1778 * @param boolean $nocache Wether to bypass caching
1779 * @return string XML feed or empty string on error
1780 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1781 * @throws \ImagickException
1783 public static function feed(string $owner_nick, string &$last_update, int $max_items = 300, string $filter = 'activity', bool $nocache = false): string
1785 $stamp = microtime(true);
1787 $owner = User::getOwnerDataByNick($owner_nick);
1792 $cachekey = 'ostatus:feed:' . $owner_nick . ':' . $filter . ':' . $last_update;
1794 $previous_created = $last_update;
1796 // Don't cache when the last item was posted less then 15 minutes ago (Cache duration)
1797 if ((time() - strtotime($owner['last-item'])) < 15*60) {
1798 $result = DI::cache()->get($cachekey);
1799 if (!$nocache && !is_null($result)) {
1800 Logger::info('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created . ' (cached)');
1801 $last_update = $result['last_update'];
1802 return $result['feed'];
1806 if (!strlen($last_update)) {
1807 $last_update = 'now -30 days';
1810 $check_date = DateTimeFormat::utc($last_update);
1811 $authorid = Contact::getIdForURL($owner['url']);
1814 "`uid` = ? AND `received` > ? AND NOT `deleted` AND `private` != ? AND `visible` AND `wall` AND `parent-network` IN (?, ?)",
1822 if ($filter === 'comments') {
1823 $condition[0] .= " AND `object-type` = ? ";
1824 $condition[] = Activity\ObjectType::COMMENT;
1827 if ($owner['contact-type'] != Contact::TYPE_COMMUNITY) {
1828 $condition[0] .= " AND `contact-id` = ? AND `author-id` = ?";
1829 $condition[] = $owner['id'];
1830 $condition[] = $authorid;
1833 $params = ['order' => ['received' => true], 'limit' => $max_items];
1835 if ($filter === 'posts') {
1836 $ret = Post::selectThread([], $condition, $params);
1838 $ret = Post::select([], $condition, $params);
1841 $items = Post::toArray($ret);
1843 $doc = new DOMDocument('1.0', 'utf-8');
1844 $doc->formatOutput = true;
1846 $root = self::addHeader($doc, $owner, $filter);
1848 foreach ($items as $item) {
1849 if (DI::config()->get('system', 'ostatus_debug')) {
1850 $item['body'] .= '🍼';
1853 if (in_array($item['verb'], [Activity::FOLLOW, Activity::O_UNFOLLOW, Activity::LIKE])) {
1857 $entry = self::entry($doc, $item, $owner, false);
1858 $root->appendChild($entry);
1860 if ($last_update < $item['created']) {
1861 $last_update = $item['created'];
1865 $feeddata = trim($doc->saveXML());
1867 $msg = ['feed' => $feeddata, 'last_update' => $last_update];
1868 DI::cache()->set($cachekey, $msg, Duration::QUARTER_HOUR);
1870 Logger::info('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created);
1876 * Creates the XML for a salmon message
1878 * @param array $item Data of the item that is to be posted
1879 * @param array $owner Contact data of the poster
1881 * @return string XML for the salmon
1882 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1883 * @throws \ImagickException
1885 public static function salmon(array $item, array $owner): string
1887 $doc = new DOMDocument('1.0', 'utf-8');
1888 $doc->formatOutput = true;
1890 if (DI::config()->get('system', 'ostatus_debug')) {
1891 $item['body'] .= '🐟';
1894 $entry = self::entry($doc, $item, $owner, true);
1896 $doc->appendChild($entry);
1898 return trim($doc->saveXML());
1902 * Checks if the given contact url does support OStatus
1904 * @param string $url profile url
1906 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1907 * @throws \ImagickException
1909 public static function isSupportedByContactUrl(string $url): bool
1911 $probe = Probe::uri($url, Protocol::OSTATUS);
1912 return $probe['network'] == Protocol::OSTATUS;