3 * @copyright Copyright (C) 2010-2023, 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 $contact = DBA::selectFirst('contact', [], [
106 "`uid` = ? AND `alias` = ? AND `rel` IN (?, ?)",
109 Contact::SHARING, Contact::FRIEND,
113 if (!DBA::isResult($contact) && $author['author-link'] != '') {
114 if ($aliaslink == '') {
115 $aliaslink = $author['author-link'];
118 $contact = DBA::selectFirst('contact', [], [
119 "`uid` = ? AND `nurl` IN (?, ?) AND `rel` IN (?, ?)",
121 Strings::normaliseLink($author['author-link']),
122 Strings::normaliseLink($aliaslink),
128 if (!DBA::isResult($contact) && ($addr != '')) {
129 $contact = DBA::selectFirst('contact', [], [
130 "`uid` = ? AND `addr` = ? AND `rel` IN (?, ?)",
138 if (DBA::isResult($contact)) {
139 if ($contact['blocked']) {
141 } elseif (!empty(APContact::getByURL($contact['url'], false))) {
142 ActivityPub\Receiver::switchContact($contact['id'], $importer['uid'], $contact['url']);
144 $author['contact-id'] = $contact['id'];
148 $avatars = $xpath->query("atom:author/atom:link[@rel='avatar']", $context);
149 foreach ($avatars as $avatar) {
152 foreach ($avatar->attributes as $attributes) {
153 if ($attributes->name == 'href') {
154 $href = $attributes->textContent;
156 if ($attributes->name == 'width') {
157 $width = $attributes->textContent;
161 $avatarlist[$width] = $href;
164 if (count($avatarlist) > 0) {
166 $author['author-avatar'] = Probe::fixAvatar(current($avatarlist), $author['author-link']);
169 $displayname = XML::getFirstNodeValue($xpath, 'atom:author/poco:displayName/text()', $context);
170 if ($displayname != '') {
171 $author['author-name'] = $displayname;
174 $author['owner-id'] = $author['author-id'];
176 // Only update the contacts if it is an OStatus contact
177 if (DBA::isResult($contact) && ($contact['id'] > 0) && !$onlyfetch && ($contact['network'] == Protocol::OSTATUS)) {
179 // Update contact data
181 unset($current['name-date']);
183 // This query doesn't seem to work
184 // $value = $xpath->query("atom:link[@rel='salmon']", $context)->item(0)->nodeValue;
186 // $contact["notify"] = $value;
188 // This query doesn't seem to work as well - I hate these queries
189 // $value = $xpath->query("atom:link[@rel='self' and @type='application/atom+xml']", $context)->item(0)->nodeValue;
191 // $contact["poll"] = $value;
193 $contact['url'] = $author['author-link'];
194 $contact['nurl'] = Strings::normaliseLink($contact['url']);
196 $value = XML::getFirstNodeValue($xpath, 'atom:author/atom:uri/text()', $context);
198 $contact['alias'] = $value;
201 $value = XML::getFirstNodeValue($xpath, 'atom:author/poco:displayName/text()', $context);
203 $contact['name'] = $value;
206 $value = XML::getFirstNodeValue($xpath, 'atom:author/poco:preferredUsername/text()', $context);
208 $contact['nick'] = $value;
211 $value = XML::getFirstNodeValue($xpath, 'atom:author/poco:note/text()', $context);
213 $contact['about'] = HTML::toBBCode($value);
216 $value = XML::getFirstNodeValue($xpath, 'atom:author/poco:address/poco:formatted/text()', $context);
218 $contact['location'] = $value;
221 $contact['name-date'] = DateTimeFormat::utcNow();
223 Contact::update($contact, ['id' => $contact['id']], $current);
225 if (!empty($author['author-avatar']) && ($author['author-avatar'] != $current['avatar'])) {
226 Logger::info('Update profile picture for contact ' . $contact['id']);
227 Contact::updateAvatar($contact['id'], $author['author-avatar']);
230 // Ensure that we are having this contact (with uid=0)
231 $cid = Contact::getIdForURL($aliaslink);
234 $fields = ['url', 'nurl', 'name', 'nick', 'alias', 'about', 'location'];
235 $old_contact = DBA::selectFirst('contact', $fields, ['id' => $cid]);
237 // Update it with the current values
239 'url' => $author['author-link'],
240 'name' => $contact['name'],
241 'nurl' => Strings::normaliseLink($author['author-link']),
242 'nick' => $contact['nick'],
243 'alias' => $contact['alias'],
244 'about' => $contact['about'],
245 'location' => $contact['location'],
246 'success_update' => DateTimeFormat::utcNow(),
247 'last-update' => DateTimeFormat::utcNow(),
250 Contact::update($fields, ['id' => $cid], $old_contact);
253 if (!empty($author['author-avatar'])) {
254 Contact::updateAvatar($cid, $author['author-avatar']);
257 } elseif (empty($contact['network']) || ($contact['network'] != Protocol::DFRN)) {
265 * Fetches author data from a given XML string
267 * @param string $xml The XML
268 * @param array $importer user record of the importing user
270 * @return array Array of author related entries for the item
271 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
272 * @throws \ImagickException
274 public static function salmonAuthor(string $xml, array $importer): array
280 $doc = new DOMDocument();
281 @$doc->loadXML($xml);
283 $xpath = new DOMXPath($doc);
284 $xpath->registerNamespace('atom', ActivityNamespace::ATOM1);
285 $xpath->registerNamespace('thr', ActivityNamespace::THREAD);
286 $xpath->registerNamespace('georss', ActivityNamespace::GEORSS);
287 $xpath->registerNamespace('activity', ActivityNamespace::ACTIVITY);
288 $xpath->registerNamespace('media', ActivityNamespace::MEDIA);
289 $xpath->registerNamespace('poco', ActivityNamespace::POCO);
290 $xpath->registerNamespace('ostatus', ActivityNamespace::OSTATUS);
291 $xpath->registerNamespace('statusnet', ActivityNamespace::STATUSNET);
293 $contact = ['id' => 0];
295 // Fetch the first author
296 $authordata = $xpath->query('//author')->item(0);
297 $author = self::fetchAuthor($xpath, $authordata, $importer, $contact, true);
302 * Read attributes from element
304 * @param object $element Element object
305 * @return array attributes
307 private static function readAttributes($element): array
311 foreach ($element->attributes as $attributes) {
312 $attribute[$attributes->name] = $attributes->textContent;
319 * Imports an XML string containing OStatus elements
321 * @param string $xml The XML
322 * @param array $importer user record of the importing user
323 * @param array $contact contact
324 * @param string $hub Called by reference, returns the fetched hub data
326 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
327 * @throws \ImagickException
329 public static function import($xml, array $importer, array &$contact, &$hub)
331 self::process($xml, $importer, $contact, $hub, false, true, Conversation::PUSH);
335 * Internal feed processing
337 * @param string $xml The XML
338 * @param array $importer user record of the importing user
339 * @param array $contact contact
340 * @param string $hub Called by reference, returns the fetched hub data
341 * @param boolean $stored Is the post fresh imported or from the database?
342 * @param boolean $initialize Is it the leading post so that data has to be initialized?
343 * @param integer $direction Direction, default UNKNOWN(0)
344 * @return boolean Could the XML be processed?
345 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
346 * @throws \ImagickException
348 private static function process(string $xml, array $importer, array &$contact = null, string &$hub, bool $stored = false, bool $initialize = true, int $direction = Conversation::UNKNOWN)
351 self::$itemlist = [];
352 self::$conv_list = [];
355 Logger::info('Import OStatus message for user ' . $importer['uid']);
361 $doc = new DOMDocument();
362 @$doc->loadXML($xml);
364 $xpath = new DOMXPath($doc);
365 $xpath->registerNamespace('atom', ActivityNamespace::ATOM1);
366 $xpath->registerNamespace('thr', ActivityNamespace::THREAD);
367 $xpath->registerNamespace('georss', ActivityNamespace::GEORSS);
368 $xpath->registerNamespace('activity', ActivityNamespace::ACTIVITY);
369 $xpath->registerNamespace('media', ActivityNamespace::MEDIA);
370 $xpath->registerNamespace('poco', ActivityNamespace::POCO);
371 $xpath->registerNamespace('ostatus', ActivityNamespace::OSTATUS);
372 $xpath->registerNamespace('statusnet', ActivityNamespace::STATUSNET);
375 $hub_items = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0);
376 if (is_object($hub_items)) {
377 $hub_attributes = $hub_items->attributes;
378 if (is_object($hub_attributes)) {
379 foreach ($hub_attributes as $hub_attribute) {
380 if ($hub_attribute->name == 'href') {
381 $hub = $hub_attribute->textContent;
382 Logger::info('Found hub ', ['hub' => $hub]);
389 $header['uid'] = $importer['uid'];
390 $header['network'] = Protocol::OSTATUS;
392 $header['origin'] = 0;
393 $header['gravity'] = Item::GRAVITY_COMMENT;
395 if (!is_object($doc->firstChild) || empty($doc->firstChild->tagName)) {
399 $first_child = $doc->firstChild->tagName;
401 if ($first_child == 'feed') {
402 $entries = $xpath->query('/atom:feed/atom:entry');
404 $entries = $xpath->query('/atom:entry');
407 if ($entries->length == 1) {
408 // We reformat the XML to make it better readable
409 $doc2 = new DOMDocument();
410 $doc2->loadXML($xml);
411 $doc2->preserveWhiteSpace = false;
412 $doc2->formatOutput = true;
413 $xml2 = $doc2->saveXML();
415 $header['protocol'] = Conversation::PARCEL_SALMON;
416 $header['source'] = $xml2;
417 $header['direction'] = $direction;
418 } elseif (!$initialize) {
422 // Fetch the first author
423 $authordata = $xpath->query('//author')->item(0);
424 $author = self::fetchAuthor($xpath, $authordata, $importer, $contact, $stored);
426 // Reverse the order of the entries
429 foreach ($entries as $entry) {
430 $entrylist[] = $entry;
433 foreach (array_reverse($entrylist) as $entry) {
435 $authorelement = $xpath->query('/atom:entry/atom:author', $entry);
437 if ($authorelement->length == 0) {
438 $authorelement = $xpath->query('atom:author', $entry);
441 if ($authorelement->length > 0) {
442 $author = self::fetchAuthor($xpath, $entry, $importer, $contact, $stored);
445 $item = array_merge($header, $author);
447 $item['uri'] = XML::getFirstNodeValue($xpath, 'atom:id/text()', $entry);
448 $item['uri-id'] = ItemURI::insert(['uri' => $item['uri']]);
450 $item['verb'] = XML::getFirstNodeValue($xpath, 'activity:verb/text()', $entry);
453 if (in_array($item['verb'], ['qvitter-delete-notice', Activity::DELETE, 'delete'])) {
454 self::deleteNotice($item);
458 if (in_array($item['verb'], [Activity::O_UNFAVOURITE, Activity::UNFAVORITE])) {
459 // Ignore "Unfavorite" message
460 Logger::info('Ignore unfavorite message ', ['item' => $item]);
464 // Deletions come with the same uri, so we check for duplicates after processing deletions
465 if (Post::exists(['uid' => $importer['uid'], 'uri' => $item['uri']])) {
466 Logger::info('Post with URI ' . $item['uri'] . ' already existed for user ' . $importer['uid'] . '.');
469 Logger::info('Processing post with URI ' . $item['uri'] . ' for user ' . $importer['uid'] . '.');
472 if ($item['verb'] == Activity::JOIN) {
473 // ignore "Join" messages
474 Logger::info('Ignore join message ', ['item' => $item]);
478 if ($item['verb'] == 'http://mastodon.social/schema/1.0/block') {
479 // ignore mastodon "block" messages
480 Logger::info('Ignore block message ', ['item' => $item]);
484 if ($item['verb'] == Activity::FOLLOW) {
485 Contact::addRelationship($importer, $contact, $item);
489 if ($item['verb'] == Activity::O_UNFOLLOW) {
491 Contact::removeFollower($contact);
495 if ($item['verb'] == Activity::FAVORITE) {
496 $orig_uri = $xpath->query('activity:object/atom:id', $entry)->item(0)->nodeValue;
497 Logger::notice('Favorite', ['uri' => $orig_uri, 'item' => $item]);
499 $item['verb'] = Activity::LIKE;
500 $item['thr-parent'] = $orig_uri;
501 $item['gravity'] = Item::GRAVITY_ACTIVITY;
502 $item['object-type'] = Activity\ObjectType::NOTE;
505 // http://activitystrea.ms/schema/1.0/rsvp-yes
506 if (!in_array($item['verb'], [Activity::POST, Activity::LIKE, Activity::SHARE])) {
507 Logger::info('Unhandled verb', ['verb' => $item['verb'], 'item' => $item]);
510 self::processPost($xpath, $entry, $item, $importer);
512 if ($initialize && (count(self::$itemlist) > 0)) {
513 if (self::$itemlist[0]['uri'] == self::$itemlist[0]['thr-parent']) {
514 $uid = self::$itemlist[0]['uid'];
515 // We will import it everytime, when it is started by our contacts
516 $valid = Contact::isSharingByURL(self::$itemlist[0]['author-link'], $uid);
519 // If not, then it depends on this setting
520 $valid = !$uid || DI::pConfig()->get($uid, 'system', 'accept_only_sharer') != Item::COMPLETION_NONE;
523 Logger::info('Item with URI ' . self::$itemlist[0]['uri'] . ' will be imported due to the system settings.');
526 Logger::info('Item with URI ' . self::$itemlist[0]['uri'] . ' belongs to a contact (' . self::$itemlist[0]['contact-id'] . '). It will be imported.');
529 if ($valid && DI::pConfig()->get($uid, 'system', 'accept_only_sharer') != Item::COMPLETION_LIKE) {
530 // Never post a thread when the only interaction by our contact was a like
532 $verbs = [Activity::POST, Activity::SHARE];
533 foreach (self::$itemlist as $item) {
534 if (in_array($item['verb'], $verbs) && Contact::isSharingByURL($item['author-link'], $item['uid'])) {
539 Logger::info('Item with URI ' . self::$itemlist[0]['uri'] . ' will be imported since the thread contains posts or shares.');
547 $default_contact = 0;
548 for ($key = count(self::$itemlist) - 1; $key >= 0; $key--) {
549 if (empty(self::$itemlist[$key]['contact-id'])) {
550 self::$itemlist[$key]['contact-id'] = $default_contact;
552 $default_contact = $item['contact-id'];
555 foreach (self::$itemlist as $item) {
556 $found = Post::exists(['uid' => $importer['uid'], 'uri' => $item['uri']]);
558 Logger::notice('Item with URI ' . $item['uri'] . ' for user ' . $importer['uid'] . ' already exists.');
559 } elseif ($item['contact-id'] < 0) {
560 Logger::notice('Item with URI ' . $item['uri'] . ' is from a blocked contact.');
562 $ret = Item::insert($item);
563 Logger::info('Item with URI ' . $item['uri'] . ' for user ' . $importer['uid'] . ' stored. Return value: ' . $ret);
567 self::$itemlist = [];
569 Logger::info('Processing done for post with URI ' . $item['uri'] . ' for user '.$importer['uid'] . '.');
575 * Removes notice item from database
577 * @param array $item item
581 private static function deleteNotice(array $item)
583 $condition = ['uid' => $item['uid'], 'author-id' => $item['author-id'], 'uri' => $item['uri']];
584 if (!Post::exists($condition)) {
585 Logger::notice('Item from ' . $item['author-link'] . ' with uri ' . $item['uri'] . ' for user ' . $item['uid'] . " wasn't found. We don't delete it.");
589 Item::markForDeletion($condition);
591 Logger::notice('Deleted item with URI ' . $item['uri'] . ' for user ' . $item['uid']);
595 * Processes the XML for a post
597 * @param DOMXPath $xpath The xpath object
598 * @param object $entry The xml entry that is processed
599 * @param array $item The item array
600 * @param array $importer user record of the importing user
602 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
603 * @throws \ImagickException
605 private static function processPost(DOMXPath $xpath, $entry, array &$item, array $importer)
607 $item['body'] = HTML::toBBCode(XML::getFirstNodeValue($xpath, 'atom:content/text()', $entry));
608 $item['object-type'] = XML::getFirstNodeValue($xpath, 'activity:object-type/text()', $entry);
609 if (($item['object-type'] == Activity\ObjectType::BOOKMARK) || ($item['object-type'] == Activity\ObjectType::EVENT)) {
610 $item['title'] = XML::getFirstNodeValue($xpath, 'atom:title/text()', $entry);
611 $item['body'] = XML::getFirstNodeValue($xpath, 'atom:summary/text()', $entry);
612 } elseif ($item['object-type'] == Activity\ObjectType::QUESTION) {
613 $item['title'] = XML::getFirstNodeValue($xpath, 'atom:title/text()', $entry);
616 $item['created'] = XML::getFirstNodeValue($xpath, 'atom:published/text()', $entry);
617 $item['edited'] = XML::getFirstNodeValue($xpath, 'atom:updated/text()', $entry);
618 $item['conversation'] = XML::getFirstNodeValue($xpath, 'ostatus:conversation/text()', $entry);
620 $conv = $xpath->query('ostatus:conversation', $entry);
621 if (is_object($conv->item(0))) {
622 foreach ($conv->item(0)->attributes as $attributes) {
623 if ($attributes->name == 'ref') {
624 $item['conversation'] = $attributes->textContent;
626 if ($attributes->name == 'href') {
627 $item['conversation'] = $attributes->textContent;
634 $inreplyto = $xpath->query('thr:in-reply-to', $entry);
635 if (is_object($inreplyto->item(0))) {
636 foreach ($inreplyto->item(0)->attributes as $attributes) {
637 if ($attributes->name == 'ref') {
638 $item['thr-parent'] = $attributes->textContent;
640 if ($attributes->name == 'href') {
641 $related = $attributes->textContent;
646 $georsspoint = $xpath->query('georss:point', $entry);
647 if (!empty($georsspoint) && ($georsspoint->length > 0)) {
648 $item['coord'] = $georsspoint->item(0)->nodeValue;
651 $categories = $xpath->query('atom:category', $entry);
653 foreach ($categories as $category) {
654 foreach ($category->attributes as $attributes) {
655 if ($attributes->name == 'term') {
657 Tag::store($item['uri-id'], Tag::HASHTAG, $attributes->textContent);
666 $links = $xpath->query('atom:link', $entry);
668 $link_data = self::processLinks($links, $item);
669 $self = $link_data['self'];
670 $add_body = $link_data['add_body'];
675 $notice_info = $xpath->query('statusnet:notice_info', $entry);
676 if ($notice_info && ($notice_info->length > 0)) {
677 foreach ($notice_info->item(0)->attributes as $attributes) {
678 if ($attributes->name == 'source') {
679 $item['app'] = strip_tags($attributes->textContent);
681 if ($attributes->name == 'repeat_of') {
682 $repeat_of = $attributes->textContent;
686 // Is it a repeated post?
687 if (($repeat_of != '') || ($item['verb'] == Activity::SHARE)) {
688 $link_data = self::processRepeatedItem($xpath, $entry, $item, $importer);
689 if (!empty($link_data['add_body'])) {
690 $add_body .= $link_data['add_body'];
694 $item['body'] .= $add_body;
696 Tag::storeFromBody($item['uri-id'], $item['body']);
698 // Mastodon Content Warning
699 if (($item['verb'] == Activity::POST) && $xpath->evaluate('boolean(atom:summary)', $entry)) {
700 $clear_text = XML::getFirstNodeValue($xpath, 'atom:summary/text()', $entry);
701 if (!empty($clear_text)) {
702 $item['content-warning'] = HTML::toBBCode($clear_text);
706 if (isset($item['thr-parent'])) {
707 if (!Post::exists(['uid' => $importer['uid'], 'uri' => $item['thr-parent']])) {
708 if ($related != '') {
709 self::fetchRelated($related, $item['thr-parent'], $importer);
712 Logger::info('Reply with URI ' . $item['uri'] . ' already existed for user ' . $importer['uid'] . '.');
715 $item['thr-parent'] = $item['uri'];
716 $item['gravity'] = Item::GRAVITY_PARENT;
719 self::$itemlist[] = $item;
723 * Fetch related posts and processes them
725 * @param string $related The link to the related item
726 * @param string $related_uri The related item in "uri" format
727 * @param array $importer user record of the importing user
729 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
730 * @throws \ImagickException
732 private static function fetchRelated(string $related, string $related_uri, array $importer)
735 $curlResult = DI::httpClient()->get($related, HttpClientAccept::ATOM_XML);
737 if (!$curlResult->isSuccess() || empty($curlResult->getBody())) {
743 if ($curlResult->inHeader('Content-Type') &&
744 in_array('application/atom+xml', $curlResult->getHeader('Content-Type'))) {
745 Logger::info('Directly fetched XML for URI ' . $related_uri);
746 $xml = $curlResult->getBody();
750 $doc = new DOMDocument();
751 if (!@$doc->loadHTML($curlResult->getBody())) {
754 $xpath = new DOMXPath($doc);
758 $links = $xpath->query('//link');
760 foreach ($links as $link) {
761 $attribute = self::readAttributes($link);
762 if (($attribute['rel'] == 'alternate') && ($attribute['type'] == 'application/atom+xml')) {
763 $atom_file = $attribute['href'];
766 if ($atom_file != '') {
767 $curlResult = DI::httpClient()->get($atom_file, HttpClientAccept::ATOM_XML);
769 if ($curlResult->isSuccess()) {
770 Logger::info('Fetched XML for URI ' . $related_uri);
771 $xml = $curlResult->getBody();
777 // Workaround for older GNU Social servers
778 if (($xml == '') && strstr($related, '/notice/')) {
779 $curlResult = DI::httpClient()->get(str_replace('/notice/', '/api/statuses/show/', $related) . '.atom', HttpClientAccept::ATOM_XML);
781 if ($curlResult->isSuccess()) {
782 Logger::info('GNU Social workaround to fetch XML for URI ' . $related_uri);
783 $xml = $curlResult->getBody();
787 // Even more worse workaround for GNU Social ;-)
789 $related_guess = self::convertHref($related_uri);
790 $curlResult = DI::httpClient()->get(str_replace('/notice/', '/api/statuses/show/', $related_guess) . '.atom', HttpClientAccept::ATOM_XML);
792 if ($curlResult->isSuccess()) {
793 Logger::info('GNU Social workaround 2 to fetch XML for URI ' . $related_uri);
794 $xml = $curlResult->getBody();
800 self::process($xml, $importer, $contact, $hub, $stored, false, Conversation::PULL);
802 Logger::info('XML could not be fetched for URI: ' . $related_uri . ' - href: ' . $related);
808 * Processes the XML for a repeated post
810 * @param DOMXPath $xpath The xpath object
811 * @param object $entry The xml entry that is processed
812 * @param array $item The item array
813 * @param array $importer user record of the importing user
815 * @return array with data from links
816 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
817 * @throws \ImagickException
819 private static function processRepeatedItem(DOMXPath $xpath, $entry, array &$item, array $importer): array
821 $activityobject = $xpath->query('activity:object', $entry)->item(0);
823 if (!is_object($activityobject)) {
829 $orig_uri = XML::getFirstNodeValue($xpath, 'atom:id/text()', $activityobject);
831 $links = $xpath->query('atom:link', $activityobject);
833 $link_data = self::processLinks($links, $item);
836 $orig_body = XML::getFirstNodeValue($xpath, 'atom:content/text()', $activityobject);
837 $orig_created = XML::getFirstNodeValue($xpath, 'atom:published/text()', $activityobject);
838 $orig_edited = XML::getFirstNodeValue($xpath, 'atom:updated/text()', $activityobject);
840 $orig_author = self::fetchAuthor($xpath, $activityobject, $importer, $dummy, false);
842 $item['author-name'] = $orig_author['author-name'];
843 $item['author-link'] = $orig_author['author-link'];
844 $item['author-id'] = $orig_author['author-id'];
846 $item['body'] = HTML::toBBCode($orig_body);
847 $item['created'] = $orig_created;
848 $item['edited'] = $orig_edited;
850 $item['uri'] = $orig_uri;
852 $item['verb'] = XML::getFirstNodeValue($xpath, 'activity:verb/text()', $activityobject);
854 $item['object-type'] = XML::getFirstNodeValue($xpath, 'activity:object-type/text()', $activityobject);
856 // Mastodon Content Warning
857 if (($item['verb'] == Activity::POST) && $xpath->evaluate('boolean(atom:summary)', $activityobject)) {
858 $clear_text = XML::getFirstNodeValue($xpath, 'atom:summary/text()', $activityobject);
859 if (!empty($clear_text)) {
860 $item['content-warning'] = HTML::toBBCode($clear_text);
864 $inreplyto = $xpath->query('thr:in-reply-to', $activityobject);
865 if (is_object($inreplyto->item(0))) {
866 foreach ($inreplyto->item(0)->attributes as $attributes) {
867 if ($attributes->name == 'ref') {
868 $item['thr-parent'] = $attributes->textContent;
877 * Processes links in the XML
879 * @param object $links The xml data that contain links
880 * @param array $item The item array
881 * @return array with data from the links
883 private static function processLinks($links, array &$item): array
885 $link_data = ['add_body' => '', 'self' => ''];
887 foreach ($links as $link) {
888 $attribute = self::readAttributes($link);
890 if (!empty($attribute['rel']) && !empty($attribute['href'])) {
891 switch ($attribute['rel']) {
893 $item['plink'] = $attribute['href'];
894 if (($item['object-type'] == Activity\ObjectType::QUESTION)
895 || ($item['object-type'] == Activity\ObjectType::EVENT)
897 Post\Media::insert(['uri-id' => $item['uri-id'], 'type' => Post\Media::UNKNOWN,
898 'url' => $attribute['href'], 'mimetype' => $attribute['type'] ?? null,
899 'size' => $attribute['length'] ?? null, 'description' => $attribute['title'] ?? null]);
903 case 'ostatus:conversation':
904 $link_data['conversation'] = $attribute['href'];
905 $item['conversation'] = $link_data['conversation'];
909 $filetype = strtolower(substr($attribute['type'], 0, strpos($attribute['type'], '/')));
910 if ($filetype == 'image') {
911 $link_data['add_body'] .= "\n[img]".$attribute['href'].'[/img]';
913 Post\Media::insert(['uri-id' => $item['uri-id'], 'type' => Post\Media::DOCUMENT,
914 'url' => $attribute['href'], 'mimetype' => $attribute['type'],
915 'size' => $attribute['length'] ?? null, 'description' => $attribute['title'] ?? null]);
920 if ($item['object-type'] != Activity\ObjectType::BOOKMARK) {
921 if (!isset($item['thr-parent'])) {
922 $item['thr-parent'] = $attribute['href'];
924 $link_data['related'] = $attribute['href'];
926 Post\Media::insert(['uri-id' => $item['uri-id'], 'type' => Post\Media::UNKNOWN,
927 'url' => $attribute['href'], 'mimetype' => $attribute['type'] ?? null,
928 'size' => $attribute['length'] ?? null, 'description' => $attribute['title'] ?? null]);
933 if (empty($item['plink'])) {
934 $item['plink'] = $attribute['href'];
936 $link_data['self'] = $attribute['href'];
940 Logger::notice('Unsupported rel=' . $attribute['rel'] . ', href=' . $attribute['href'] . ', object-type=' . $item['object-type']);
948 * Create an url out of an uri
950 * @param string $href URI in the format "parameter1:parameter1:..."
951 * @return string URL in the format http(s)://....
953 private static function convertHref(string $href): string
955 $elements = explode(':', $href);
957 if ((count($elements) <= 2) || ($elements[0] != 'tag')) {
961 $server = explode(',', $elements[1]);
962 $conversation = explode('=', $elements[2]);
964 if ((count($elements) == 4) && ($elements[2] == 'post')) {
965 return 'http://' . $server[0] . '/notice/' . $elements[3];
968 if ((count($conversation) != 2) || ($conversation[1] == '')) {
972 if ($elements[3] == 'objectType=thread') {
973 return 'http://' . $server[0] . '/conversation/' . $conversation[1];
975 return 'http://' . $server[0] . '/notice/' . $conversation[1];
980 * Adds the header elements to the XML document
982 * @param DOMDocument $doc XML document
983 * @param array $owner Contact data of the poster
984 * @param string $filter The related feed filter (activity, posts or comments)
986 * @return DOMElement Header root element
987 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
989 private static function addHeader(DOMDocument $doc, array $owner, string $filter): DOMElement
991 $root = $doc->createElementNS(ActivityNamespace::ATOM1, 'feed');
992 $doc->appendChild($root);
994 $root->setAttribute('xmlns:thr', ActivityNamespace::THREAD);
995 $root->setAttribute('xmlns:georss', ActivityNamespace::GEORSS);
996 $root->setAttribute('xmlns:activity', ActivityNamespace::ACTIVITY);
997 $root->setAttribute('xmlns:media', ActivityNamespace::MEDIA);
998 $root->setAttribute('xmlns:poco', ActivityNamespace::POCO);
999 $root->setAttribute('xmlns:ostatus', ActivityNamespace::OSTATUS);
1000 $root->setAttribute('xmlns:statusnet', ActivityNamespace::STATUSNET);
1001 $root->setAttribute('xmlns:mastodon', ActivityNamespace::MASTODON);
1004 $selfUri = '/feed/' . $owner['nick'] . '/';
1007 $title = DI::l10n()->t('%s\'s timeline', $owner['name']);
1008 $selfUri .= $filter;
1012 $title = DI::l10n()->t('%s\'s posts', $owner['name']);
1016 $title = DI::l10n()->t('%s\'s comments', $owner['name']);
1017 $selfUri .= $filter;
1021 $selfUri = '/dfrn_poll/' . $owner['nick'];
1024 'uri' => 'https://friendi.ca',
1025 'version' => App::VERSION . '-' . DB_UPDATE_VERSION,
1027 XML::addElement($doc, $root, 'generator', App::PLATFORM, $attributes);
1028 XML::addElement($doc, $root, 'id', DI::baseUrl() . '/profile/' . $owner['nick']);
1029 XML::addElement($doc, $root, 'title', $title);
1030 XML::addElement($doc, $root, 'subtitle', sprintf("Updates from %s on %s", $owner['name'], DI::config()->get('config', 'sitename')));
1031 XML::addElement($doc, $root, 'logo', User::getAvatarUrl($owner, Proxy::SIZE_SMALL));
1032 XML::addElement($doc, $root, 'updated', DateTimeFormat::utcNow(DateTimeFormat::ATOM));
1034 $author = self::addAuthor($doc, $owner, true);
1035 $root->appendChild($author);
1038 'href' => $owner['url'],
1039 'rel' => 'alternate',
1040 'type' => 'text/html',
1042 XML::addElement($doc, $root, 'link', '', $attributes);
1044 /// @TODO We have to find out what this is
1045 /// $attributes = array("href" => DI::baseUrl()."/sup",
1046 /// "rel" => "http://api.friendfeed.com/2008/03#sup",
1047 /// "type" => "application/json");
1048 /// XML::addElement($doc, $root, "link", "", $attributes);
1050 self::addHubLink($doc, $root, $owner['nick']);
1052 $attributes = ['href' => DI::baseUrl() . '/salmon/' . $owner['nick'], 'rel' => 'salmon'];
1053 XML::addElement($doc, $root, 'link', '', $attributes);
1055 $attributes = ['href' => DI::baseUrl() . '/salmon/' . $owner['nick'], 'rel' => 'http://salmon-protocol.org/ns/salmon-replies'];
1056 XML::addElement($doc, $root, 'link', '', $attributes);
1058 $attributes = ['href' => DI::baseUrl() . '/salmon/' . $owner['nick'], 'rel' => 'http://salmon-protocol.org/ns/salmon-mention'];
1059 XML::addElement($doc, $root, 'link', '', $attributes);
1061 $attributes = ['href' => DI::baseUrl() . $selfUri, 'rel' => 'self', 'type' => 'application/atom+xml'];
1062 XML::addElement($doc, $root, 'link', '', $attributes);
1064 if ($owner['contact-type'] == Contact::TYPE_COMMUNITY) {
1065 $members = DBA::count('contact', [
1066 'uid' => $owner['uid'],
1073 XML::addElement($doc, $root, 'statusnet:group_info', '', ['member_count' => $members]);
1080 * Add the link to the push hubs to the XML document
1082 * @param DOMDocument $doc XML document
1083 * @param DOMElement $root XML root element where the hub links are added
1084 * @param string $nick Nickname
1086 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1088 public static function addHubLink(DOMDocument $doc, DOMElement $root, string $nick)
1090 $h = DI::baseUrl() . '/pubsubhubbub/' . $nick;
1091 XML::addElement($doc, $root, 'link', '', ['href' => $h, 'rel' => 'hub']);
1095 * Adds attachment data to the XML document
1097 * @param DOMDocument $doc XML document
1098 * @param DOMElement $root XML root element where the hub links are added
1099 * @param array $item Data of the item that is to be posted
1101 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1103 public static function getAttachment(DOMDocument $doc, DOMElement $root, array $item)
1105 foreach (Post\Media::getByURIId($item['uri-id'], [Post\Media::AUDIO, Post\Media::IMAGE, Post\Media::VIDEO, Post\Media::DOCUMENT, Post\Media::TORRENT]) as $attachment) {
1106 $attributes = ['rel' => 'enclosure',
1107 'href' => $attachment['url'],
1108 'type' => $attachment['mimetype']];
1110 if (!empty($attachment['size'])) {
1111 $attributes['length'] = intval($attachment['size']);
1113 if (!empty($attachment['description'])) {
1114 $attributes['title'] = $attachment['description'];
1117 XML::addElement($doc, $root, 'link', '', $attributes);
1122 * Adds the author element to the XML document
1124 * @param DOMDocument $doc XML document
1125 * @param array $owner Contact data of the poster
1126 * @param bool $show_profile Whether to show profile
1127 * @return DOMElement Author element
1128 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1130 private static function addAuthor(DOMDocument $doc, array $owner, bool $show_profile = true): DOMElement
1132 $profile = DBA::selectFirst('profile', ['homepage', 'publish'], ['uid' => $owner['uid']]);
1133 $author = $doc->createElement('author');
1134 XML::addElement($doc, $author, 'id', $owner['url']);
1135 if ($owner['contact-type'] == Contact::TYPE_COMMUNITY) {
1136 XML::addElement($doc, $author, 'activity:object-type', Activity\ObjectType::GROUP);
1138 XML::addElement($doc, $author, 'activity:object-type', Activity\ObjectType::PERSON);
1141 XML::addElement($doc, $author, 'uri', $owner['url']);
1142 XML::addElement($doc, $author, 'name', $owner['nick']);
1143 XML::addElement($doc, $author, 'email', $owner['addr']);
1144 if ($show_profile) {
1145 XML::addElement($doc, $author, 'summary', BBCode::convertForUriId($owner['uri-id'], $owner['about'], BBCode::OSTATUS));
1149 'rel' => 'alternate',
1150 'type' => 'text/html',
1151 'href' => $owner['url'],
1153 XML::addElement($doc, $author, 'link', '', $attributes);
1157 'type' => 'image/jpeg', // To-Do?
1158 'media:width' => Proxy::PIXEL_SMALL,
1159 'media:height' => Proxy::PIXEL_SMALL,
1160 'href' => User::getAvatarUrl($owner, Proxy::SIZE_SMALL),
1162 XML::addElement($doc, $author, 'link', '', $attributes);
1164 if (isset($owner['thumb'])) {
1167 'type' => 'image/jpeg', // To-Do?
1168 'media:width' => Proxy::PIXEL_THUMB,
1169 'media:height' => Proxy::PIXEL_THUMB,
1170 'href' => User::getAvatarUrl($owner, Proxy::SIZE_THUMB),
1172 XML::addElement($doc, $author, 'link', '', $attributes);
1175 XML::addElement($doc, $author, 'poco:preferredUsername', $owner['nick']);
1176 XML::addElement($doc, $author, 'poco:displayName', $owner['name']);
1177 if ($show_profile) {
1178 XML::addElement($doc, $author, 'poco:note', BBCode::convertForUriId($owner['uri-id'], $owner['about'], BBCode::OSTATUS));
1180 if (trim($owner['location']) != '') {
1181 $element = $doc->createElement('poco:address');
1182 XML::addElement($doc, $element, 'poco:formatted', $owner['location']);
1183 $author->appendChild($element);
1187 if (DBA::isResult($profile) && !$show_profile) {
1188 if (trim($profile['homepage']) != '') {
1189 $urls = $doc->createElement('poco:urls');
1190 XML::addElement($doc, $urls, 'poco:type', 'homepage');
1191 XML::addElement($doc, $urls, 'poco:value', $profile['homepage']);
1192 XML::addElement($doc, $urls, 'poco:primary', 'true');
1193 $author->appendChild($urls);
1196 XML::addElement($doc, $author, 'followers', '', ['url' => DI::baseUrl() . '/profile/' . $owner['nick'] . '/contacts/followers']);
1197 XML::addElement($doc, $author, 'statusnet:profile_info', '', ['local_id' => $owner['uid']]);
1199 if ($profile['publish']) {
1200 XML::addElement($doc, $author, 'mastodon:scope', 'public');
1208 * @TODO Picture attachments should look like this:
1209 * <a href="https://status.pirati.ca/attachment/572819" title="https://status.pirati.ca/file/heluecht-20151202T222602-rd3u49p.gif"
1210 * class="attachment thumbnail" id="attachment-572819" rel="nofollow external">https://status.pirati.ca/attachment/572819</a>
1214 * Returns the given activity if present - otherwise returns the "post" activity
1216 * @param array $item Data of the item that is to be posted
1217 * @return string activity
1219 public static function constructVerb(array $item): string
1221 if (!empty($item['verb'])) {
1222 return $item['verb'];
1225 return Activity::POST;
1229 * Returns the given object type if present - otherwise returns the "note" object type
1231 * @param array $item Data of the item that is to be posted
1232 * @return string Object type
1234 private static function constructObjecttype(array $item): string
1236 if (!empty($item['object-type']) && in_array($item['object-type'], [Activity\ObjectType::NOTE, Activity\ObjectType::COMMENT])) {
1237 return $item['object-type'];
1240 return Activity\ObjectType::NOTE;
1244 * Adds an entry element to the XML document
1246 * @param DOMDocument $doc XML document
1247 * @param array $item Data of the item that is to be posted
1248 * @param array $owner Contact data of the poster
1249 * @param bool $toplevel optional default false
1251 * @return DOMElement Entry element
1252 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1253 * @throws \ImagickException
1255 private static function entry(DOMDocument $doc, array $item, array $owner, bool $toplevel = false): DOMElement
1257 if ($item['verb'] == Activity::LIKE) {
1258 return self::likeEntry($doc, $item, $owner, $toplevel);
1259 } elseif (in_array($item['verb'], [Activity::FOLLOW, Activity::O_UNFOLLOW])) {
1260 return self::followEntry($doc, $item, $owner, $toplevel);
1262 return self::noteEntry($doc, $item, $owner, $toplevel);
1267 * Adds an entry element with a "like"
1269 * @param DOMDocument $doc XML document
1270 * @param array $item Data of the item that is to be posted
1271 * @param array $owner Contact data of the poster
1272 * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1273 * @return DOMElement Entry element with "like"
1274 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1275 * @throws \ImagickException
1277 private static function likeEntry(DOMDocument $doc, array $item, array $owner, bool $toplevel): DOMElement
1279 if (($item['gravity'] != Item::GRAVITY_PARENT) && (Strings::normaliseLink($item['author-link']) != Strings::normaliseLink($owner['url']))) {
1280 Logger::info('OStatus entry is from author ' . $owner['url'] . ' - not from ' . $item['author-link'] . '. Quitting.');
1283 $entry = self::entryHeader($doc, $owner, $item, $toplevel);
1285 $verb = ActivityNamespace::ACTIVITY_SCHEMA . 'favorite';
1286 self::entryContent($doc, $entry, $item, $owner, 'Favorite', $verb, false);
1288 $parent = Post::selectFirst([], ['uri' => $item['thr-parent'], 'uid' => $item['uid']]);
1289 if (DBA::isResult($parent)) {
1290 $as_object = $doc->createElement('activity:object');
1292 XML::addElement($doc, $as_object, 'activity:object-type', self::constructObjecttype($parent));
1294 self::entryContent($doc, $as_object, $parent, $owner, 'New entry');
1296 $entry->appendChild($as_object);
1299 self::entryFooter($doc, $entry, $item, $owner);
1305 * Adds the person object element to the XML document
1307 * @param DOMDocument $doc XML document
1308 * @param array $owner Contact data of the poster
1309 * @param array $contact Contact data of the target
1310 * @return DOMElement author element
1312 private static function addPersonObject(DOMDocument $doc, array $owner, array $contact): DOMElement
1314 $object = $doc->createElement('activity:object');
1315 XML::addElement($doc, $object, 'activity:object-type', Activity\ObjectType::PERSON);
1317 if ($contact['network'] == Protocol::PHANTOM) {
1318 XML::addElement($doc, $object, 'id', $contact['url']);
1322 XML::addElement($doc, $object, 'id', $contact['alias']);
1323 XML::addElement($doc, $object, 'title', $contact['nick']);
1325 XML::addElement($doc, $object, 'link', '', [
1326 'rel' => 'alternate',
1327 'type' => 'text/html',
1328 'href' => $contact['url'],
1333 'type' => 'image/jpeg', // To-Do?
1334 'media:width' => 300,
1335 'media:height' => 300,
1336 'href' => $contact['photo'],
1338 XML::addElement($doc, $object, 'link', '', $attributes);
1340 XML::addElement($doc, $object, 'poco:preferredUsername', $contact['nick']);
1341 XML::addElement($doc, $object, 'poco:displayName', $contact['name']);
1343 if (trim($contact['location']) != '') {
1344 $element = $doc->createElement('poco:address');
1345 XML::addElement($doc, $element, 'poco:formatted', $contact['location']);
1346 $object->appendChild($element);
1353 * Adds a follow/unfollow entry element
1355 * @param DOMDocument $doc XML document
1356 * @param array $item Data of the follow/unfollow message
1357 * @param array $owner Contact data of the poster
1358 * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1359 * @return DOMElement Entry element
1360 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1361 * @throws \ImagickException
1363 private static function followEntry(DOMDocument $doc, array $item, array $owner, bool $toplevel): DOMElement
1365 $item['id'] = $item['parent'] = 0;
1366 $item['created'] = $item['edited'] = date('c');
1367 $item['private'] = Item::PRIVATE;
1369 $contact = Contact::getByURL($item['follow']);
1370 $item['follow'] = $contact['url'];
1372 if ($contact['alias']) {
1373 $item['follow'] = $contact['alias'];
1375 $contact['alias'] = $contact['url'];
1378 $condition = ['uid' => $owner['uid'], 'nurl' => Strings::normaliseLink($contact['url'])];
1379 $user_contact = DBA::selectFirst('contact', ['id'], $condition);
1381 if (DBA::isResult($user_contact)) {
1382 $connect_id = $user_contact['id'];
1387 if ($item['verb'] == Activity::FOLLOW) {
1388 $message = DI::l10n()->t('%s is now following %s.');
1389 $title = DI::l10n()->t('following');
1390 $action = 'subscription';
1392 $message = DI::l10n()->t('%s stopped following %s.');
1393 $title = DI::l10n()->t('stopped following');
1394 $action = 'unfollow';
1397 $item['uri'] = $item['parent-uri'] = $item['thr-parent']
1398 = 'tag:' . DI::baseUrl()->getHostname().
1399 ','.date('Y-m-d').':'.$action.':'.$owner['uid'].
1400 ':person:'.$connect_id.':'.$item['created'];
1402 $item['body'] = sprintf($message, $owner['nick'], $contact['nick']);
1404 $entry = self::entryHeader($doc, $owner, $item, $toplevel);
1406 self::entryContent($doc, $entry, $item, $owner, $title);
1408 $object = self::addPersonObject($doc, $owner, $contact);
1409 $entry->appendChild($object);
1411 self::entryFooter($doc, $entry, $item, $owner);
1417 * Adds a regular entry element
1419 * @param DOMDocument $doc XML document
1420 * @param array $item Data of the item that is to be posted
1421 * @param array $owner Contact data of the poster
1422 * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1423 * @return DOMElement Entry element
1424 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1425 * @throws \ImagickException
1427 private static function noteEntry(DOMDocument $doc, array $item, array $owner, bool $toplevel): DOMElement
1429 if (($item['gravity'] != Item::GRAVITY_PARENT) && (Strings::normaliseLink($item['author-link']) != Strings::normaliseLink($owner['url']))) {
1430 Logger::info('OStatus entry is from author ' . $owner['url'] . ' - not from ' . $item['author-link'] . '. Quitting.');
1434 if (!empty($item['title'])) {
1435 $title = BBCode::convertForUriId($item['uri-id'], $item['title'], BBCode::OSTATUS);
1437 $title = sprintf('New note by %s', $owner['nick']);
1440 $title = sprintf('New comment by %s', $owner['nick']);
1443 $entry = self::entryHeader($doc, $owner, $item, $toplevel);
1445 XML::addElement($doc, $entry, 'activity:object-type', Activity\ObjectType::NOTE);
1447 self::entryContent($doc, $entry, $item, $owner, $title, '', true);
1449 self::entryFooter($doc, $entry, $item, $owner, true);
1455 * Adds a header element to the XML document
1457 * @param DOMDocument $doc XML document
1458 * @param array $owner Contact data of the poster
1459 * @param array $item
1460 * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1461 * @return DOMElement The entry element where the elements are added
1462 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1463 * @throws \ImagickException
1465 public static function entryHeader(DOMDocument $doc, array $owner, array $item, bool $toplevel): DOMElement
1468 $entry = $doc->createElement('entry');
1470 if ($owner['contact-type'] == Contact::TYPE_COMMUNITY) {
1471 $contact = Contact::getByURL($item['author-link']) ?: $owner;
1472 $contact['nickname'] = $contact['nickname'] ?? $contact['nick'];
1473 $author = self::addAuthor($doc, $contact, false);
1474 $entry->appendChild($author);
1477 $entry = $doc->createElementNS(ActivityNamespace::ATOM1, 'entry');
1479 $entry->setAttribute('xmlns:thr', ActivityNamespace::THREAD);
1480 $entry->setAttribute('xmlns:georss', ActivityNamespace::GEORSS);
1481 $entry->setAttribute('xmlns:activity', ActivityNamespace::ACTIVITY);
1482 $entry->setAttribute('xmlns:media', ActivityNamespace::MEDIA);
1483 $entry->setAttribute('xmlns:poco', ActivityNamespace::POCO);
1484 $entry->setAttribute('xmlns:ostatus', ActivityNamespace::OSTATUS);
1485 $entry->setAttribute('xmlns:statusnet', ActivityNamespace::STATUSNET);
1486 $entry->setAttribute('xmlns:mastodon', ActivityNamespace::MASTODON);
1488 $author = self::addAuthor($doc, $owner);
1489 $entry->appendChild($author);
1496 * Adds elements to the XML document
1498 * @param DOMDocument $doc XML document
1499 * @param DOMElement $entry Entry element where the content is added
1500 * @param array $item Data of the item that is to be posted
1501 * @param array $owner Contact data of the poster
1502 * @param string $title Title for the post
1503 * @param string $verb The activity verb
1504 * @param bool $complete Add the "status_net" element?
1506 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1508 private static function entryContent(DOMDocument $doc, DOMElement $entry, array $item, array $owner, string $title, string $verb = '', bool $complete = true)
1511 $verb = self::constructVerb($item);
1514 XML::addElement($doc, $entry, 'id', $item['uri']);
1515 XML::addElement($doc, $entry, 'title', html_entity_decode($title, ENT_QUOTES, 'UTF-8'));
1517 $body = Post\Media::addAttachmentsToBody($item['uri-id'], DI::contentItem()->addSharedPost($item));
1519 if (!empty($item['title'])) {
1520 $body = '[b]' . $item['title'] . "[/b]\n\n" . $body;
1523 $body = BBCode::convertForUriId($item['uri-id'], $body, BBCode::OSTATUS);
1525 XML::addElement($doc, $entry, 'content', $body, ['type' => 'html']);
1527 XML::addElement($doc, $entry, 'link', '', [
1528 'rel' => 'alternate',
1529 'type' => 'text/html',
1530 'href' => DI::baseUrl() . '/display/' . $item['guid'],
1533 if ($complete && ($item['id'] > 0)) {
1534 XML::addElement($doc, $entry, 'status_net', '', ['notice_id' => $item['id']]);
1537 XML::addElement($doc, $entry, 'activity:verb', $verb);
1539 XML::addElement($doc, $entry, 'published', DateTimeFormat::utc($item['created'] . '+00:00', DateTimeFormat::ATOM));
1540 XML::addElement($doc, $entry, 'updated', DateTimeFormat::utc($item['edited'] . '+00:00', DateTimeFormat::ATOM));
1544 * Adds the elements at the foot of an entry to the XML document
1546 * @param DOMDocument $doc XML document
1547 * @param object $entry The entry element where the elements are added
1548 * @param array $item Data of the item that is to be posted
1549 * @param array $owner Contact data of the poster
1550 * @param bool $complete default true
1552 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1554 private static function entryFooter(DOMDocument $doc, $entry, array $item, array $owner, bool $complete = true)
1558 if ($item['gravity'] != Item::GRAVITY_PARENT) {
1559 $parent = Post::selectFirst(['guid', 'author-link', 'owner-link'], ['id' => $item['parent']]);
1561 $thrparent = Post::selectFirst(['guid', 'author-link', 'owner-link', 'plink'], ['uid' => $owner['uid'], 'uri' => $item['thr-parent']]);
1563 if (DBA::isResult($thrparent)) {
1564 $mentioned[$thrparent['author-link']] = $thrparent['author-link'];
1565 $mentioned[$thrparent['owner-link']] = $thrparent['owner-link'];
1566 $parent_plink = $thrparent['plink'];
1567 } elseif (DBA::isResult($parent)) {
1568 $mentioned[$parent['author-link']] = $parent['author-link'];
1569 $mentioned[$parent['owner-link']] = $parent['owner-link'];
1570 $parent_plink = DI::baseUrl() . '/display/' . $parent['guid'];
1572 DI::logger()->notice('Missing parent and thr-parent for child item', ['item' => $item]);
1575 if (isset($parent_plink)) {
1577 'ref' => $item['thr-parent'],
1578 'href' => $parent_plink];
1579 XML::addElement($doc, $entry, 'thr:in-reply-to', '', $attributes);
1583 'href' => $parent_plink];
1584 XML::addElement($doc, $entry, 'link', '', $attributes);
1588 if (intval($item['parent']) > 0) {
1589 $conversation_href = $conversation_uri = $item['conversation'];
1591 XML::addElement($doc, $entry, 'link', '', ['rel' => 'ostatus:conversation', 'href' => $conversation_href]);
1594 'href' => $conversation_href,
1595 'local_id' => $item['parent'],
1596 'ref' => $conversation_uri,
1599 XML::addElement($doc, $entry, 'ostatus:conversation', $conversation_uri, $attributes);
1602 // uri-id isn't present for follow entry pseudo-items
1603 $tags = Tag::getByURIId($item['uri-id'] ?? 0);
1604 foreach ($tags as $tag) {
1605 $mentioned[$tag['url']] = $tag['url'];
1608 // Make sure that mentions are accepted (GNU Social has problems with mixing HTTP and HTTPS)
1610 foreach ($mentioned as $mention) {
1611 $newmentions[str_replace('http://', 'https://', $mention)] = str_replace('http://', 'https://', $mention);
1612 $newmentions[str_replace('https://', 'http://', $mention)] = str_replace('https://', 'http://', $mention);
1614 $mentioned = $newmentions;
1616 foreach ($mentioned as $mention) {
1617 $contact = Contact::getByURL($mention, false, ['contact-type']);
1618 if (!empty($contact) && ($contact['contact-type'] == Contact::TYPE_COMMUNITY)) {
1619 XML::addElement($doc, $entry, 'link', '', [
1620 'rel' => 'mentioned',
1621 'ostatus:object-type' => Activity\ObjectType::GROUP,
1625 XML::addElement($doc, $entry, 'link', '', [
1626 'rel' => 'mentioned',
1627 'ostatus:object-type' => Activity\ObjectType::PERSON,
1633 if ($owner['contact-type'] == Contact::TYPE_COMMUNITY) {
1634 XML::addElement($doc, $entry, 'link', '', [
1635 'rel' => 'mentioned',
1636 'ostatus:object-type' => 'http://activitystrea.ms/schema/1.0/group',
1637 'href' => $owner['url']
1641 if ($item['private'] != Item::PRIVATE) {
1642 XML::addElement($doc, $entry, 'link', '', ['rel' => 'ostatus:attention',
1643 'href' => 'http://activityschema.org/collection/public']);
1644 XML::addElement($doc, $entry, 'link', '', ['rel' => 'mentioned',
1645 'ostatus:object-type' => 'http://activitystrea.ms/schema/1.0/collection',
1646 'href' => 'http://activityschema.org/collection/public']);
1647 XML::addElement($doc, $entry, 'mastodon:scope', 'public');
1650 foreach ($tags as $tag) {
1651 if ($tag['type'] == Tag::HASHTAG) {
1652 XML::addElement($doc, $entry, 'category', '', ['term' => $tag['name']]);
1656 self::getAttachment($doc, $entry, $item);
1658 if ($complete && ($item['id'] > 0)) {
1659 $app = $item['app'];
1664 $attributes = ['local_id' => $item['id'], 'source' => $app];
1666 if (isset($parent['id'])) {
1667 $attributes['repeat_of'] = $parent['id'];
1670 if ($item['coord'] != '') {
1671 XML::addElement($doc, $entry, 'georss:point', $item['coord']);
1674 XML::addElement($doc, $entry, 'statusnet:notice_info', '', $attributes);
1679 * Creates the XML feed for a given nickname
1681 * Supported filters:
1682 * - activity (default): all the public posts
1683 * - posts: all the public top-level posts
1684 * - comments: all the public replies
1686 * Updates the provided last_update parameter if the result comes from the
1687 * cache or it is empty
1689 * @param string $owner_nick Nickname of the feed owner
1690 * @param string $last_update Date of the last update (in "Y-m-d H:i:s" format)
1691 * @param integer $max_items Number of maximum items to fetch
1692 * @param string $filter Feed items filter (activity, posts or comments)
1693 * @param boolean $nocache Wether to bypass caching
1694 * @return string XML feed or empty string on error
1695 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1696 * @throws \ImagickException
1698 public static function feed(string $owner_nick, string &$last_update, int $max_items = 300, string $filter = 'activity', bool $nocache = false): string
1700 $stamp = microtime(true);
1702 $owner = User::getOwnerDataByNick($owner_nick);
1707 $cachekey = 'ostatus:feed:' . $owner_nick . ':' . $filter . ':' . $last_update;
1709 $previous_created = $last_update;
1711 // Don't cache when the last item was posted less then 15 minutes ago (Cache duration)
1712 if ((time() - strtotime($owner['last-item'])) < 15*60) {
1713 $result = DI::cache()->get($cachekey);
1714 if (!$nocache && !is_null($result)) {
1715 Logger::info('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created . ' (cached)');
1716 $last_update = $result['last_update'];
1717 return $result['feed'];
1721 if (!strlen($last_update)) {
1722 $last_update = 'now -30 days';
1725 $check_date = DateTimeFormat::utc($last_update);
1726 $authorid = Contact::getIdForURL($owner['url']);
1729 "`uid` = ? AND `received` > ? AND NOT `deleted` AND `private` != ? AND `visible` AND `wall` AND `parent-network` IN (?, ?)",
1737 if ($filter === 'comments') {
1738 $condition[0] .= " AND `object-type` = ? ";
1739 $condition[] = Activity\ObjectType::COMMENT;
1742 if ($owner['contact-type'] != Contact::TYPE_COMMUNITY) {
1743 $condition[0] .= " AND `contact-id` = ? AND `author-id` = ?";
1744 $condition[] = $owner['id'];
1745 $condition[] = $authorid;
1748 $params = ['order' => ['received' => true], 'limit' => $max_items];
1750 if ($filter === 'posts') {
1751 $ret = Post::selectThread([], $condition, $params);
1753 $ret = Post::select([], $condition, $params);
1756 $items = Post::toArray($ret);
1758 $doc = new DOMDocument('1.0', 'utf-8');
1759 $doc->formatOutput = true;
1761 $root = self::addHeader($doc, $owner, $filter);
1763 foreach ($items as $item) {
1764 if (DI::config()->get('system', 'ostatus_debug')) {
1765 $item['body'] .= '🍼';
1768 if (in_array($item['verb'], [Activity::FOLLOW, Activity::O_UNFOLLOW, Activity::LIKE])) {
1772 $entry = self::entry($doc, $item, $owner, false);
1773 $root->appendChild($entry);
1775 if ($last_update < $item['created']) {
1776 $last_update = $item['created'];
1780 $feeddata = trim($doc->saveXML());
1782 $msg = ['feed' => $feeddata, 'last_update' => $last_update];
1783 DI::cache()->set($cachekey, $msg, Duration::QUARTER_HOUR);
1785 Logger::info('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created);
1791 * Creates the XML for a salmon message
1793 * @param array $item Data of the item that is to be posted
1794 * @param array $owner Contact data of the poster
1796 * @return string XML for the salmon
1797 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1798 * @throws \ImagickException
1800 public static function salmon(array $item, array $owner): string
1802 $doc = new DOMDocument('1.0', 'utf-8');
1803 $doc->formatOutput = true;
1805 if (DI::config()->get('system', 'ostatus_debug')) {
1806 $item['body'] .= '🐟';
1809 $entry = self::entry($doc, $item, $owner, true);
1811 $doc->appendChild($entry);
1813 return trim($doc->saveXML());
1817 * Checks if the given contact url does support OStatus
1819 * @param string $url profile url
1821 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1822 * @throws \ImagickException
1824 public static function isSupportedByContactUrl(string $url): bool
1826 $probe = Probe::uri($url, Protocol::OSTATUS);
1827 return $probe['network'] == Protocol::OSTATUS;