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\Core\Logger;
30 use Friendica\Core\Protocol;
31 use Friendica\Database\DBA;
33 use Friendica\Model\Contact;
34 use Friendica\Model\Conversation;
35 use Friendica\Model\Event;
36 use Friendica\Model\FContact;
37 use Friendica\Model\GServer;
38 use Friendica\Model\Item;
39 use Friendica\Model\ItemURI;
40 use Friendica\Model\Mail;
41 use Friendica\Model\Notification;
42 use Friendica\Model\Photo;
43 use Friendica\Model\Post;
44 use Friendica\Model\Profile;
45 use Friendica\Model\Tag;
46 use Friendica\Model\User;
47 use Friendica\Network\Probe;
48 use Friendica\Util\Crypto;
49 use Friendica\Util\DateTimeFormat;
50 use Friendica\Util\Images;
51 use Friendica\Util\Network;
52 use Friendica\Util\Proxy;
53 use Friendica\Util\Strings;
54 use Friendica\Util\XML;
57 * This class contain functions to create and send DFRN XML files
62 const TOP_LEVEL = 0; // Top level posting
63 const REPLY = 1; // Regular reply that is stored locally
64 const REPLY_RC = 2; // Reply that will be relayed
67 * Generates an array of contact and user for DFRN imports
69 * This array contains not only the receiver but also the sender of the message.
71 * @param integer $cid Contact id
72 * @param integer $uid User id
74 * @return array importer
77 public static function getImporter(int $cid, int $uid = 0): array
79 $condition = ['id' => $cid, 'blocked' => false, 'pending' => false];
80 $contact = DBA::selectFirst('contact', [], $condition);
81 if (!DBA::isResult($contact)) {
85 $contact['cpubkey'] = $contact['pubkey'];
86 $contact['cprvkey'] = $contact['prvkey'];
87 $contact['senderName'] = $contact['name'];
90 $condition = ['uid' => $uid, 'account_expired' => false, 'account_removed' => false];
91 $user = DBA::selectFirst('user', [], $condition);
92 if (!DBA::isResult($user)) {
96 $user['importer_uid'] = $user['uid'];
97 $user['uprvkey'] = $user['prvkey'];
99 $user = ['importer_uid' => 0, 'uprvkey' => '', 'timezone' => 'UTC',
100 'nickname' => '', 'sprvkey' => '', 'spubkey' => '',
101 'page-flags' => 0, 'account-type' => 0, 'prvnets' => 0];
104 return array_merge($contact, $user);
108 * Generates the atom entries for delivery.php
110 * This function is used whenever content is transmitted via DFRN.
112 * @param array $items Item elements
113 * @param array $owner Owner record
115 * @return string DFRN entries
116 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
117 * @throws \ImagickException
118 * @todo Find proper type-hints
120 public static function entries(array $items, array $owner): string
122 $doc = new DOMDocument('1.0', 'utf-8');
123 $doc->formatOutput = true;
125 $root = self::addHeader($doc, $owner, 'dfrn:owner', '', false);
127 if (! count($items)) {
128 return trim($doc->saveXML());
131 foreach ($items as $item) {
132 // These values aren't sent when sending from the queue.
133 /// @todo Check if we can set these values from the queue or if they are needed at all.
134 $item['entry:comment-allow'] = ($item['entry:comment-allow'] ?? '') ?: true;
135 $item['entry:cid'] = $item['entry:cid'] ?? 0;
137 $entry = self::entry($doc, 'text', $item, $owner, $item['entry:comment-allow'], $item['entry:cid']);
139 $root->appendChild($entry);
143 return trim($doc->saveXML());
147 * Generate an atom entry for a given uri id and user
149 * @param int $uri_id The uri id
150 * @param int $uid The user id
151 * @param boolean $conversation Show the conversation. If false show the single post.
153 * @return string DFRN feed entry
154 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
155 * @throws \ImagickException
157 public static function itemFeed(int $uri_id, int $uid, bool $conversation = false): string
160 $condition = ['parent-uri-id' => $uri_id];
162 $condition = ['uri-id' => $uri_id];
165 $condition['uid'] = $uid;
167 $items = Post::selectToArray(Item::DELIVER_FIELDLIST, $condition);
168 if (!DBA::isResult($items)) {
174 if ($item['uid'] != 0) {
175 $owner = User::getOwnerDataById($item['uid']);
180 $owner = ['uid' => 0, 'nick' => 'feed-item'];
183 $doc = new DOMDocument('1.0', 'utf-8');
184 $doc->formatOutput = true;
188 $root = $doc->createElementNS(ActivityNamespace::ATOM1, 'feed');
189 $doc->appendChild($root);
191 $root->setAttribute('xmlns:thr', ActivityNamespace::THREAD);
192 $root->setAttribute('xmlns:at', ActivityNamespace::TOMB);
193 $root->setAttribute('xmlns:media', ActivityNamespace::MEDIA);
194 $root->setAttribute('xmlns:dfrn', ActivityNamespace::DFRN);
195 $root->setAttribute('xmlns:activity', ActivityNamespace::ACTIVITY);
196 $root->setAttribute('xmlns:georss', ActivityNamespace::GEORSS);
197 $root->setAttribute('xmlns:poco', ActivityNamespace::POCO);
198 $root->setAttribute('xmlns:ostatus', ActivityNamespace::OSTATUS);
199 $root->setAttribute('xmlns:statusnet', ActivityNamespace::STATUSNET);
201 //$root = self::addHeader($doc, $owner, 'dfrn:owner', '', false);
203 foreach ($items as $item) {
204 $entry = self::entry($doc, $type, $item, $owner, true, 0);
206 $root->appendChild($entry);
210 self::entry($doc, $type, $item, $owner, true, 0, true);
213 $atom = trim($doc->saveXML());
218 * Create XML text for DFRN mails
220 * @param array $mail Mail record
221 * @param array $owner Owner record
223 * @return string DFRN mail
224 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
225 * @todo Find proper type-hints
227 public static function mail(array $mail, array $owner): string
229 $doc = new DOMDocument('1.0', 'utf-8');
230 $doc->formatOutput = true;
232 $root = self::addHeader($doc, $owner, 'dfrn:owner', '', false);
234 $mailElement = $doc->createElement('dfrn:mail');
235 $senderElement = $doc->createElement('dfrn:sender');
237 XML::addElement($doc, $senderElement, 'dfrn:name', $owner['name']);
238 XML::addElement($doc, $senderElement, 'dfrn:uri', $owner['url']);
239 XML::addElement($doc, $senderElement, 'dfrn:avatar', $owner['thumb']);
241 $mailElement->appendChild($senderElement);
243 XML::addElement($doc, $mailElement, 'dfrn:id', $mail['uri']);
244 XML::addElement($doc, $mailElement, 'dfrn:in-reply-to', $mail['parent-uri']);
245 XML::addElement($doc, $mailElement, 'dfrn:sentdate', DateTimeFormat::utc($mail['created'] . '+00:00', DateTimeFormat::ATOM));
246 XML::addElement($doc, $mailElement, 'dfrn:subject', $mail['title']);
247 XML::addElement($doc, $mailElement, 'dfrn:content', $mail['body']);
249 $root->appendChild($mailElement);
251 return trim($doc->saveXML());
255 * Create XML text for DFRN friend suggestions
257 * @param array $item suggestion elements
258 * @param array $owner Owner record
260 * @return string DFRN suggestions
261 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
262 * @todo Find proper type-hints
264 public static function fsuggest(array $item, array $owner): string
266 $doc = new DOMDocument('1.0', 'utf-8');
267 $doc->formatOutput = true;
269 $root = self::addHeader($doc, $owner, 'dfrn:owner', '', false);
271 $suggest = $doc->createElement('dfrn:suggest');
273 XML::addElement($doc, $suggest, 'dfrn:url', $item['url']);
274 XML::addElement($doc, $suggest, 'dfrn:name', $item['name']);
275 XML::addElement($doc, $suggest, 'dfrn:photo', $item['photo']);
276 XML::addElement($doc, $suggest, 'dfrn:request', $item['request']);
277 XML::addElement($doc, $suggest, 'dfrn:note', $item['note']);
279 $root->appendChild($suggest);
281 return trim($doc->saveXML());
285 * Create XML text for DFRN relocations
287 * @param array $owner Owner record
288 * @param int $uid User ID
290 * @return string DFRN relocations
291 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
292 * @todo Find proper type-hints
294 public static function relocate(array $owner, int $uid): string
297 /* get site pubkey. this could be a new installation with no site keys*/
298 $pubkey = DI::config()->get('system', 'site_pubkey');
300 $res = Crypto::newKeypair(1024);
301 DI::config()->set('system', 'site_prvkey', $res['prvkey']);
302 DI::config()->set('system', 'site_pubkey', $res['pubkey']);
305 $profilephotos = Photo::selectToArray(['resource-id' , 'scale'], ['profile' => true, 'uid' => $uid], ['order' => ['scale']]);
308 $ext = Images::supportedTypes();
310 foreach ($profilephotos as $p) {
311 $photos[$p['scale']] = DI::baseUrl().'/photo/'.$p['resource-id'].'-'.$p['scale'].'.'.$ext[$p['type']];
315 $doc = new DOMDocument('1.0', 'utf-8');
316 $doc->formatOutput = true;
318 $root = self::addHeader($doc, $owner, 'dfrn:owner', '', false);
320 $relocate = $doc->createElement('dfrn:relocate');
322 XML::addElement($doc, $relocate, 'dfrn:url', $owner['url']);
323 XML::addElement($doc, $relocate, 'dfrn:name', $owner['name']);
324 XML::addElement($doc, $relocate, 'dfrn:addr', $owner['addr']);
325 XML::addElement($doc, $relocate, 'dfrn:avatar', $owner['avatar']);
326 XML::addElement($doc, $relocate, 'dfrn:photo', $photos[4]);
327 XML::addElement($doc, $relocate, 'dfrn:thumb', $photos[5]);
328 XML::addElement($doc, $relocate, 'dfrn:micro', $photos[6]);
329 XML::addElement($doc, $relocate, 'dfrn:request', $owner['request']);
330 XML::addElement($doc, $relocate, 'dfrn:confirm', $owner['confirm']);
331 XML::addElement($doc, $relocate, 'dfrn:notify', $owner['notify']);
332 XML::addElement($doc, $relocate, 'dfrn:poll', $owner['poll']);
333 XML::addElement($doc, $relocate, 'dfrn:sitepubkey', DI::config()->get('system', 'site_pubkey'));
335 $root->appendChild($relocate);
337 return trim($doc->saveXML());
341 * Adds the header elements for the DFRN protocol
343 * @param DOMDocument $doc XML document
344 * @param array $owner Owner record
345 * @param string $authorelement Element name for the author
346 * @param string $alternatelink link to profile or category
347 * @param bool $public Is it a header for public posts?
348 * @return DOMElement XML root element
349 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
350 * @todo Find proper type-hint for returned type
352 private static function addHeader(DOMDocument $doc, array $owner, string $authorelement, string $alternatelink = '', bool $public = false): DOMElement
354 if ($alternatelink == '') {
355 $alternatelink = $owner['url'];
358 $root = $doc->createElementNS(ActivityNamespace::ATOM1, 'feed');
359 $doc->appendChild($root);
361 $root->setAttribute('xmlns:thr', ActivityNamespace::THREAD);
362 $root->setAttribute('xmlns:at', ActivityNamespace::TOMB);
363 $root->setAttribute('xmlns:media', ActivityNamespace::MEDIA);
364 $root->setAttribute('xmlns:dfrn', ActivityNamespace::DFRN);
365 $root->setAttribute('xmlns:activity', ActivityNamespace::ACTIVITY);
366 $root->setAttribute('xmlns:georss', ActivityNamespace::GEORSS);
367 $root->setAttribute('xmlns:poco', ActivityNamespace::POCO);
368 $root->setAttribute('xmlns:ostatus', ActivityNamespace::OSTATUS);
369 $root->setAttribute('xmlns:statusnet', ActivityNamespace::STATUSNET);
371 XML::addElement($doc, $root, 'id', DI::baseUrl() . '/profile/' . $owner['nick']);
372 XML::addElement($doc, $root, 'title', $owner['name']);
374 $attributes = ['uri' => 'https://friendi.ca', 'version' => FRIENDICA_VERSION . '-' . DB_UPDATE_VERSION];
375 XML::addElement($doc, $root, 'generator', FRIENDICA_PLATFORM, $attributes);
377 $attributes = ['rel' => 'license', 'href' => 'http://creativecommons.org/licenses/by/3.0/'];
378 XML::addElement($doc, $root, 'link', '', $attributes);
380 $attributes = ['rel' => 'alternate', 'type' => 'text/html', 'href' => $alternatelink];
381 XML::addElement($doc, $root, 'link', '', $attributes);
385 // DFRN itself doesn't uses this. But maybe someone else wants to subscribe to the public feed.
386 OStatus::addHubLink($doc, $root, $owner['nick']);
388 $attributes = ['rel' => 'salmon', 'href' => DI::baseUrl() . '/salmon/' . $owner['nick']];
389 XML::addElement($doc, $root, 'link', '', $attributes);
391 $attributes = ['rel' => 'http://salmon-protocol.org/ns/salmon-replies', 'href' => DI::baseUrl() . '/salmon/' . $owner['nick']];
392 XML::addElement($doc, $root, 'link', '', $attributes);
394 $attributes = ['rel' => 'http://salmon-protocol.org/ns/salmon-mention', 'href' => DI::baseUrl() . '/salmon/' . $owner['nick']];
395 XML::addElement($doc, $root, 'link', '', $attributes);
398 // For backward compatibility we keep this element
399 if ($owner['page-flags'] == User::PAGE_FLAGS_COMMUNITY) {
400 XML::addElement($doc, $root, 'dfrn:community', 1);
403 // The former element is replaced by this one
404 XML::addElement($doc, $root, 'dfrn:account_type', $owner['account-type']);
406 /// @todo We need a way to transmit the different page flags like "User::PAGE_FLAGS_PRVGROUP"
408 XML::addElement($doc, $root, 'updated', DateTimeFormat::utcNow(DateTimeFormat::ATOM));
410 $author = self::addAuthor($doc, $owner, $authorelement, $public);
411 $root->appendChild($author);
417 * Determine the next birthday, but only if the birthday is published
418 * in the default profile. We _could_ also look for a private profile that the
419 * recipient can see, but somebody could get mad at us if they start getting
420 * public birthday greetings when they haven't made this info public.
422 * Assuming we are able to publish this info, we are then going to convert
423 * the start time from the owner's timezone to UTC.
425 * This will potentially solve the problem found with some social networks
426 * where birthdays are converted to the viewer's timezone and salutations from
427 * elsewhere in the world show up on the wrong day. We will convert it to the
428 * viewer's timezone also, but first we are going to convert it from the birthday
429 * person's timezone to GMT - so the viewer may find the birthday starting at
430 * 6:00PM the day before, but that will correspond to midnight to the birthday person.
432 * @param int $uid User id
433 * @param string $tz Time zone string, like UTC
434 * @return string Formatted birthday string
436 private static function determineNextBirthday(int $uid, string $tz): string
444 $profile = DBA::selectFirst('profile', ['dob'], ['uid' => $uid]);
445 if (DBA::isResult($profile)) {
446 $tmp_dob = substr($profile['dob'], 5);
447 if (intval($tmp_dob)) {
448 $y = DateTimeFormat::timezoneNow($tz, 'Y');
449 $bd = $y . '-' . $tmp_dob . ' 00:00';
450 $t_dob = strtotime($bd);
451 $now = strtotime(DateTimeFormat::timezoneNow($tz));
453 $bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
455 $birthday = DateTimeFormat::convert($bd, 'UTC', $tz, DateTimeFormat::ATOM);
463 * Adds the author element in the header for the DFRN protocol
465 * @param DOMDocument $doc XML document
466 * @param array $owner Owner record
467 * @param string $authorelement Element name for the author
468 * @param boolean $public boolean
469 * @return DOMElement XML author object
470 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
471 * @todo Find proper type-hints
473 private static function addAuthor(DOMDocument $doc, array $owner, string $authorelement, bool $public): DOMElement
475 // Should the profile be "unsearchable" in the net? Then add the "hide" element
476 $hide = DBA::exists('profile', ['uid' => $owner['uid'], 'net-publish' => false]);
478 $author = $doc->createElement($authorelement);
480 $namdate = DateTimeFormat::utc($owner['name-date'].'+00:00', DateTimeFormat::ATOM);
481 $picdate = DateTimeFormat::utc($owner['avatar-date'].'+00:00', DateTimeFormat::ATOM);
485 if (!$public || !$hide) {
486 $attributes = ['dfrn:updated' => $namdate];
489 XML::addElement($doc, $author, 'name', $owner['name'], $attributes);
490 XML::addElement($doc, $author, 'uri', DI::baseUrl().'/profile/' . $owner['nickname'], $attributes);
491 XML::addElement($doc, $author, 'dfrn:handle', $owner['addr'], $attributes);
495 'type' => 'image/jpeg',
496 'media:width' => Proxy::PIXEL_SMALL,
497 'media:height' => Proxy::PIXEL_SMALL,
498 'href' => User::getAvatarUrl($owner, Proxy::SIZE_SMALL),
501 if (!$public || !$hide) {
502 $attributes['dfrn:updated'] = $picdate;
505 XML::addElement($doc, $author, 'link', '', $attributes);
507 $attributes['rel'] = 'avatar';
508 XML::addElement($doc, $author, 'link', '', $attributes);
511 XML::addElement($doc, $author, 'dfrn:hide', 'true');
514 // The following fields will only be generated if the data isn't meant for a public feed
519 $birthday = self::determineNextBirthday($owner['uid'], $owner['timezone']);
522 XML::addElement($doc, $author, 'dfrn:birthday', $birthday);
525 // Only show contact details when we are allowed to
526 $profile = DBA::selectFirst('owner-view',
527 ['about', 'name', 'homepage', 'nickname', 'timezone', 'locality', 'region', 'country-name', 'pub_keywords', 'xmpp', 'dob'],
528 ['uid' => $owner['uid'], 'hidewall' => false]);
529 if (DBA::isResult($profile)) {
530 XML::addElement($doc, $author, 'poco:displayName', $profile['name']);
531 XML::addElement($doc, $author, 'poco:updated', $namdate);
533 if (trim($profile['dob']) > DBA::NULL_DATE) {
534 XML::addElement($doc, $author, 'poco:birthday', '0000-'.date('m-d', strtotime($profile['dob'])));
537 XML::addElement($doc, $author, 'poco:note', $profile['about']);
538 XML::addElement($doc, $author, 'poco:preferredUsername', $profile['nickname']);
540 XML::addElement($doc, $author, 'poco:utcOffset', DateTimeFormat::timezoneNow($profile['timezone'], 'P'));
542 if (trim($profile['homepage']) != '') {
543 $urls = $doc->createElement('poco:urls');
544 XML::addElement($doc, $urls, 'poco:type', 'homepage');
545 XML::addElement($doc, $urls, 'poco:value', $profile['homepage']);
546 XML::addElement($doc, $urls, 'poco:primary', 'true');
547 $author->appendChild($urls);
550 if (trim($profile['pub_keywords']) != '') {
551 $keywords = explode(',', $profile['pub_keywords']);
553 foreach ($keywords as $keyword) {
554 XML::addElement($doc, $author, 'poco:tags', trim($keyword));
558 if (trim($profile['xmpp']) != '') {
559 $ims = $doc->createElement('poco:ims');
560 XML::addElement($doc, $ims, 'poco:type', 'xmpp');
561 XML::addElement($doc, $ims, 'poco:value', $profile['xmpp']);
562 XML::addElement($doc, $ims, 'poco:primary', 'true');
563 $author->appendChild($ims);
566 if (trim($profile['locality'] . $profile['region'] . $profile['country-name']) != '') {
567 $element = $doc->createElement('poco:address');
569 XML::addElement($doc, $element, 'poco:formatted', Profile::formatLocation($profile));
571 if (trim($profile['locality']) != '') {
572 XML::addElement($doc, $element, 'poco:locality', $profile['locality']);
575 if (trim($profile['region']) != '') {
576 XML::addElement($doc, $element, 'poco:region', $profile['region']);
579 if (trim($profile['country-name']) != '') {
580 XML::addElement($doc, $element, 'poco:country', $profile['country-name']);
583 $author->appendChild($element);
591 * Adds the author elements in the "entry" elements of the DFRN protocol
593 * @param DOMDocument $doc XML document
594 * @param string $element Element name for the author
595 * @param string $contact_url Link of the contact
596 * @param array $item Item elements
597 * @return DOMElement XML author object
598 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
599 * @todo Find proper type-hints
601 private static function addEntryAuthor(DOMDocument $doc, string $element, string $contact_url, array $item): DOMElement
603 $author = $doc->createElement($element);
605 $contact = Contact::getByURLForUser($contact_url, $item['uid'], false, ['url', 'name', 'addr', 'photo']);
606 if (!empty($contact)) {
607 XML::addElement($doc, $author, 'name', $contact['name']);
608 XML::addElement($doc, $author, 'uri', $contact['url']);
609 XML::addElement($doc, $author, 'dfrn:handle', $contact['addr']);
612 /// - Check real image type and image size
613 /// - Check which of these boths elements we should use
616 'type' => 'image/jpeg',
618 'media:height' => 80,
619 'href' => $contact['photo'],
621 XML::addElement($doc, $author, 'link', '', $attributes);
625 'type' => 'image/jpeg',
627 'media:height' => 80,
628 'href' => $contact['photo'],
630 XML::addElement($doc, $author, 'link', '', $attributes);
637 * Adds the activity elements
639 * @param DOMDocument $doc XML document
640 * @param string $element Element name for the activity
641 * @param string $activity activity value
642 * @param int $uriid Uri-Id of the post
643 * @return DOMElement XML activity object
644 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
645 * @todo Find proper type-hints
647 private static function createActivity(DOMDocument $doc, string $element, string $activity, int $uriid)
650 $entry = $doc->createElement($element);
652 $r = XML::parseString($activity);
658 XML::addElement($doc, $entry, "activity:object-type", $r->type);
662 XML::addElement($doc, $entry, "id", $r->id);
666 XML::addElement($doc, $entry, "title", $r->title);
670 if (substr($r->link, 0, 1) == '<') {
671 if (strstr($r->link, '&') && (! strstr($r->link, '&'))) {
672 $r->link = str_replace('&', '&', $r->link);
675 $r->link = preg_replace('/\<link(.*?)\"\>/', '<link$1"/>', $r->link);
677 // XML does need a single element as root element so we add a dummy element here
678 $data = XML::parseString("<dummy>" . $r->link . "</dummy>");
679 if (is_object($data)) {
680 foreach ($data->link as $link) {
682 foreach ($link->attributes() as $parameter => $value) {
683 $attributes[$parameter] = $value;
685 XML::addElement($doc, $entry, "link", "", $attributes);
689 $attributes = ["rel" => "alternate", "type" => "text/html", "href" => $r->link];
690 XML::addElement($doc, $entry, "link", "", $attributes);
694 XML::addElement($doc, $entry, "content", BBCode::convertForUriId($uriid, $r->content, BBCode::EXTERNAL), ["type" => "html"]);
704 * Adds the elements for attachments
706 * @param object $doc XML document
707 * @param object $root XML root
708 * @param array $item Item element
710 * @return void XML attachment object
711 * @todo Find proper type-hints
713 private static function getAttachment($doc, $root, array $item)
715 foreach (Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT, Post\Media::TORRENT, Post\Media::UNKNOWN]) as $attachment) {
716 $attributes = ['rel' => 'enclosure',
717 'href' => $attachment['url'],
718 'type' => $attachment['mimetype']];
720 if (!empty($attachment['size'])) {
721 $attributes['length'] = intval($attachment['size']);
723 if (!empty($attachment['description'])) {
724 $attributes['title'] = $attachment['description'];
727 XML::addElement($doc, $root, 'link', '', $attributes);
732 * Adds the "entry" elements for the DFRN protocol
734 * @param DOMDocument $doc XML document
735 * @param string $type "text" or "html"
736 * @param array $item Item element
737 * @param array $owner Owner record
738 * @param bool $comment Trigger the sending of the "comment" element
739 * @param int $cid Contact ID of the recipient
740 * @param bool $single If set, the entry is created as an XML document with a single "entry" element
742 * @return null|\DOMElement XML entry object
743 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
744 * @throws \ImagickException
745 * @todo Find proper type-hints
747 private static function entry(DOMDocument $doc, string $type, array $item, array $owner, bool $comment = false, int $cid = 0, bool $single = false)
751 if (!$item['parent']) {
752 Logger::notice('Item without parent found.', ['type' => $type, 'item' => $item]);
756 if ($item['deleted']) {
757 $attributes = ["ref" => $item['uri'], "when" => DateTimeFormat::utc($item['edited'] . '+00:00', DateTimeFormat::ATOM)];
758 return XML::createElement($doc, "at:deleted-entry", "", $attributes);
762 $entry = $doc->createElement("entry");
764 $entry = $doc->createElementNS(ActivityNamespace::ATOM1, 'entry');
765 $doc->appendChild($entry);
767 $entry->setAttribute("xmlns:thr", ActivityNamespace::THREAD);
768 $entry->setAttribute("xmlns:at", ActivityNamespace::TOMB);
769 $entry->setAttribute("xmlns:media", ActivityNamespace::MEDIA);
770 $entry->setAttribute("xmlns:dfrn", ActivityNamespace::DFRN);
771 $entry->setAttribute("xmlns:activity", ActivityNamespace::ACTIVITY);
772 $entry->setAttribute("xmlns:georss", ActivityNamespace::GEORSS);
773 $entry->setAttribute("xmlns:poco", ActivityNamespace::POCO);
774 $entry->setAttribute("xmlns:ostatus", ActivityNamespace::OSTATUS);
775 $entry->setAttribute("xmlns:statusnet", ActivityNamespace::STATUSNET);
778 $body = Post\Media::addAttachmentsToBody($item['uri-id'], $item['body'] ?? '');
780 if ($item['private'] == Item::PRIVATE) {
781 $body = Item::fixPrivatePhotos($body, $owner['uid'], $item, $cid);
784 // Remove the abstract element. It is only locally important.
785 $body = BBCode::stripAbstract($body);
788 if ($type == 'html') {
791 if ($item['title'] != "") {
792 $htmlbody = "[b]" . $item['title'] . "[/b]\n\n" . $htmlbody;
795 $htmlbody = BBCode::convertForUriId($item['uri-id'], $htmlbody, BBCode::ACTIVITYPUB);
798 $author = self::addEntryAuthor($doc, "author", $item["author-link"], $item);
799 $entry->appendChild($author);
801 $dfrnowner = self::addEntryAuthor($doc, "dfrn:owner", $item["owner-link"], $item);
802 $entry->appendChild($dfrnowner);
804 if ($item['gravity'] != GRAVITY_PARENT) {
805 $parent = Post::selectFirst(['guid', 'plink'], ['uri' => $item['thr-parent'], 'uid' => $item['uid']]);
806 if (DBA::isResult($parent)) {
807 $attributes = ["ref" => $item['thr-parent'], "type" => "text/html",
808 "href" => $parent['plink'],
809 "dfrn:diaspora_guid" => $parent['guid']];
810 XML::addElement($doc, $entry, "thr:in-reply-to", "", $attributes);
814 // Add conversation data. This is used for OStatus
815 $conversation_href = DI::baseUrl()."/display/".$item["parent-guid"];
816 $conversation_uri = $conversation_href;
818 if (isset($parent_item)) {
819 $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $item['thr-parent']]);
820 if (DBA::isResult($conversation)) {
821 if ($conversation['conversation-uri'] != '') {
822 $conversation_uri = $conversation['conversation-uri'];
824 if ($conversation['conversation-href'] != '') {
825 $conversation_href = $conversation['conversation-href'];
831 'href' => $conversation_href,
832 'ref' => $conversation_uri,
835 XML::addElement($doc, $entry, 'ostatus:conversation', $conversation_uri, $attributes);
837 XML::addElement($doc, $entry, 'id', $item['uri']);
838 XML::addElement($doc, $entry, 'title', $item['title']);
840 XML::addElement($doc, $entry, 'published', DateTimeFormat::utc($item['created'] . '+00:00', DateTimeFormat::ATOM));
841 XML::addElement($doc, $entry, 'updated', DateTimeFormat::utc($item['edited'] . '+00:00', DateTimeFormat::ATOM));
843 // "dfrn:env" is used to read the content
844 XML::addElement($doc, $entry, 'dfrn:env', Strings::base64UrlEncode($body, true));
846 // The "content" field is not read by the receiver. We could remove it when the type is "text"
847 // We keep it at the moment, maybe there is some old version that doesn't read "dfrn:env"
848 XML::addElement($doc, $entry, 'content', (($type == 'html') ? $htmlbody : $body), ['type' => $type]);
850 // We save this value in "plink". Maybe we should read it from there as well?
857 'rel' => 'alternate',
858 'type' => 'text/html',
859 'href' => DI::baseUrl() . '/display/' . $item['guid']
863 // "comment-allow" is some old fashioned stuff for old Friendica versions.
864 // It is included in the rewritten code for completeness
866 XML::addElement($doc, $entry, 'dfrn:comment-allow', 1);
869 if ($item['location']) {
870 XML::addElement($doc, $entry, 'dfrn:location', $item['location']);
873 if ($item['coord']) {
874 XML::addElement($doc, $entry, 'georss:point', $item['coord']);
877 if ($item['private']) {
878 // Friendica versions prior to 2020.3 can't handle "unlisted" properly. So we can only transmit public and private
879 XML::addElement($doc, $entry, 'dfrn:private', ($item['private'] == Item::PRIVATE ? Item::PRIVATE : Item::PUBLIC));
880 XML::addElement($doc, $entry, 'dfrn:unlisted', $item['private'] == Item::UNLISTED);
883 if ($item['extid']) {
884 XML::addElement($doc, $entry, 'dfrn:extid', $item['extid']);
887 if ($item['post-type'] == Item::PT_PAGE) {
888 XML::addElement($doc, $entry, 'dfrn:bookmark', 'true');
892 XML::addElement($doc, $entry, 'statusnet:notice_info', '', ['local_id' => $item['id'], 'source' => $item['app']]);
895 XML::addElement($doc, $entry, 'dfrn:diaspora_guid', $item['guid']);
897 // The signed text contains the content in Markdown, the sender handle and the signatur for the content
898 // It is needed for relayed comments to Diaspora.
899 if ($item['signed_text']) {
900 $sign = base64_encode(json_encode(['signed_text' => $item['signed_text'],'signature' => '','signer' => '']));
901 XML::addElement($doc, $entry, 'dfrn:diaspora_signature', $sign);
904 XML::addElement($doc, $entry, 'activity:verb', self::constructVerb($item));
906 if ($item['object-type'] != '') {
907 XML::addElement($doc, $entry, 'activity:object-type', $item['object-type']);
908 } elseif ($item['gravity'] == GRAVITY_PARENT) {
909 XML::addElement($doc, $entry, 'activity:object-type', Activity\ObjectType::NOTE);
911 XML::addElement($doc, $entry, 'activity:object-type', Activity\ObjectType::COMMENT);
914 $actobj = self::createActivity($doc, 'activity:object', $item['object'] ?? '', $item['uri-id']);
916 $entry->appendChild($actobj);
919 $actarg = self::createActivity($doc, 'activity:target', $item['target'] ?? '', $item['uri-id']);
921 $entry->appendChild($actarg);
924 $tags = Tag::getByURIId($item['uri-id']);
927 foreach ($tags as $tag) {
928 if (($type != 'html') || ($tag['type'] == Tag::HASHTAG)) {
929 XML::addElement($doc, $entry, 'category', '', ['scheme' => 'X-DFRN:' . Tag::TAG_CHARACTER[$tag['type']] . ':' . $tag['url'], 'term' => $tag['name']]);
931 if ($tag['type'] != Tag::HASHTAG) {
932 $mentioned[$tag['url']] = $tag['url'];
937 foreach ($mentioned as $mention) {
938 $condition = ['uid' => $owner['uid'], 'nurl' => Strings::normaliseLink($mention)];
939 $contact = DBA::selectFirst('contact', ['contact-type'], $condition);
941 if (DBA::isResult($contact) && ($contact['contact-type'] == Contact::TYPE_COMMUNITY)) {
948 'rel' => 'mentioned',
949 'ostatus:object-type' => Activity\ObjectType::GROUP,
960 'rel' => 'mentioned',
961 'ostatus:object-type' => Activity\ObjectType::PERSON,
968 self::getAttachment($doc, $entry, $item);
974 * Transmits atom content to the contacts via the Diaspora transport layer
976 * @param array $owner Owner record
977 * @param array $contact Contact record of the receiver
978 * @param string $atom Content that will be transmitted
979 * @param bool $public_batch
980 * @return int Deliver status. Negative values mean an error.
981 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
982 * @throws \ImagickException
984 public static function transmit(array $owner, array $contact, string $atom, bool $public_batch = false)
986 if (!$public_batch) {
987 if (empty($contact['addr'])) {
988 Logger::notice('Empty contact handle for ' . $contact['id'] . ' - ' . $contact['url'] . ' - trying to update it.');
989 if (Contact::updateFromProbe($contact['id'])) {
990 $new_contact = DBA::selectFirst('contact', ['addr'], ['id' => $contact['id']]);
991 $contact['addr'] = $new_contact['addr'];
994 if (empty($contact['addr'])) {
995 Logger::notice('Unable to find contact handle for ' . $contact['id'] . ' - ' . $contact['url']);
1000 $fcontact = FContact::getByURL($contact['addr']);
1001 if (empty($fcontact)) {
1002 Logger::notice('Unable to find contact details for ' . $contact['id'] . ' - ' . $contact['addr']);
1005 $pubkey = $fcontact['pubkey'];
1010 $envelope = Diaspora::buildMessage($atom, $owner, $contact, $owner['uprvkey'], $pubkey, $public_batch);
1012 // Create the endpoint for public posts. This is some WIP and should later be added to the probing
1013 if ($public_batch && empty($contact['batch'])) {
1014 $parts = parse_url($contact['notify']);
1015 $path_parts = explode('/', $parts['path']);
1016 array_pop($path_parts);
1017 $parts['path'] = implode('/', $path_parts);
1018 $contact['batch'] = Network::unparseURL($parts);
1021 $dest_url = ($public_batch ? $contact['batch'] : $contact['notify']);
1023 if (empty($dest_url)) {
1024 Logger::info('Empty destination', ['public' => $public_batch, 'contact' => $contact]);
1028 $content_type = ($public_batch ? 'application/magic-envelope+xml' : 'application/json');
1030 $postResult = DI::httpClient()->post($dest_url, $envelope, ['Content-Type' => $content_type]);
1031 $xml = $postResult->getBody();
1033 $curl_stat = $postResult->getReturnCode();
1034 if (empty($curl_stat) || empty($xml)) {
1035 Logger::notice('Empty answer from ' . $contact['id'] . ' - ' . $dest_url);
1036 return -9; // timed out
1039 if (($curl_stat == 503) && $postResult->inHeader('retry-after')) {
1043 if (strpos($xml, '<?xml') === false) {
1044 Logger::notice('No valid XML returned from ' . $contact['id'] . ' - ' . $dest_url);
1045 Logger::debug('Returned XML: ' . $xml);
1049 $res = XML::parseString($xml);
1051 if (empty($res->status)) {
1055 if (!empty($res->message)) {
1056 Logger::info('Transmit to ' . $dest_url . ' returned status '.$res->status.' - '.$res->message);
1059 return intval($res->status);
1063 * Fetch the author data from head or entry items
1065 * @param \DOMXPath $xpath XPath object
1066 * @param \DOMNode $context In which context should the data be searched
1067 * @param array $importer Record of the importer user mixed with contact of the content
1068 * @param string $element Element name from which the data is fetched
1069 * @param bool $onlyfetch Should the data only be fetched or should it update the contact record as well
1070 * @param string $xml optional, default empty
1072 * @return array Relevant data of the author
1073 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1074 * @throws \ImagickException
1075 * @todo Find good type-hints for all parameter
1077 private static function fetchauthor(\DOMXPath $xpath, \DOMNode $context, array $importer, string $element, bool $onlyfetch, string $xml = ''): array
1080 $author["name"] = XML::getFirstNodeValue($xpath, $element."/atom:name/text()", $context);
1081 $author["link"] = XML::getFirstNodeValue($xpath, $element."/atom:uri/text()", $context);
1083 $fields = ['id', 'uid', 'url', 'network', 'avatar-date', 'avatar', 'name-date', 'uri-date', 'addr',
1084 'name', 'nick', 'about', 'location', 'keywords', 'xmpp', 'bdyear', 'bd', 'hidden', 'contact-type'];
1085 $condition = ["`uid` = ? AND `nurl` = ? AND `network` != ? AND NOT `pending` AND NOT `blocked`",
1086 $importer["importer_uid"], Strings::normaliseLink($author["link"]), Protocol::STATUSNET];
1088 if ($importer['account-type'] != User::ACCOUNT_TYPE_COMMUNITY) {
1089 $condition = DBA::mergeConditions($condition, ['rel' => [Contact::SHARING, Contact::FRIEND]]);
1092 $contact_old = DBA::selectFirst('contact', $fields, $condition);
1094 if (DBA::isResult($contact_old)) {
1095 $author["contact-id"] = $contact_old["id"];
1096 $author["network"] = $contact_old["network"];
1098 Logger::info('Contact not found', ['condition' => $condition]);
1100 $author["contact-unknown"] = true;
1101 $contact = Contact::getByURL($author["link"], null, ["id", "network"]);
1102 $author["contact-id"] = $contact["id"] ?? $importer["id"];
1103 $author["network"] = $contact["network"] ?? $importer["network"];
1107 // Until now we aren't serving different sizes - but maybe later
1109 /// @todo check if "avatar" or "photo" would be the best field in the specification
1110 $avatars = $xpath->query($element . "/atom:link[@rel='avatar']", $context);
1111 foreach ($avatars as $avatar) {
1114 foreach ($avatar->attributes as $attributes) {
1115 /// @TODO Rewrite these similar if() to one switch
1116 if ($attributes->name == "href") {
1117 $href = $attributes->textContent;
1119 if ($attributes->name == "width") {
1120 $width = $attributes->textContent;
1122 if ($attributes->name == "updated") {
1123 $author["avatar-date"] = $attributes->textContent;
1126 if (($width > 0) && ($href != "")) {
1127 $avatarlist[$width] = $href;
1131 if (count($avatarlist) > 0) {
1132 krsort($avatarlist);
1133 $author["avatar"] = current($avatarlist);
1136 if (empty($author['avatar']) && !empty($author['link'])) {
1137 $cid = Contact::getIdForURL($author['link'], 0);
1139 $contact = DBA::selectFirst('contact', ['avatar'], ['id' => $cid]);
1140 if (DBA::isResult($contact)) {
1141 $author['avatar'] = $contact['avatar'];
1146 if (empty($author['avatar'])) {
1147 Logger::notice('Empty author: ' . $xml);
1148 $author['avatar'] = '';
1151 if (DBA::isResult($contact_old) && !$onlyfetch) {
1152 Logger::info("Check if contact details for contact " . $contact_old["id"] . " (" . $contact_old["nick"] . ") have to be updated.");
1154 $poco = ["url" => $contact_old["url"], "network" => $contact_old["network"]];
1156 // When was the last change to name or uri?
1157 $name_element = $xpath->query($element . "/atom:name", $context)->item(0);
1158 foreach ($name_element->attributes as $attributes) {
1159 if ($attributes->name == "updated") {
1160 $poco["name-date"] = $attributes->textContent;
1164 $link_element = $xpath->query($element . "/atom:link", $context)->item(0);
1165 foreach ($link_element->attributes as $attributes) {
1166 if ($attributes->name == "updated") {
1167 $poco["uri-date"] = $attributes->textContent;
1171 // Update contact data
1172 $value = XML::getFirstNodeValue($xpath, $element . "/dfrn:handle/text()", $context);
1174 $poco["addr"] = $value;
1177 $value = XML::getFirstNodeValue($xpath, $element . "/poco:displayName/text()", $context);
1179 $poco["name"] = $value;
1182 $value = XML::getFirstNodeValue($xpath, $element . "/poco:preferredUsername/text()", $context);
1184 $poco["nick"] = $value;
1187 $value = XML::getFirstNodeValue($xpath, $element . "/poco:note/text()", $context);
1189 $poco["about"] = $value;
1192 $value = XML::getFirstNodeValue($xpath, $element . "/poco:address/poco:formatted/text()", $context);
1194 $poco["location"] = $value;
1197 /// @todo Only search for elements with "poco:type" = "xmpp"
1198 $value = XML::getFirstNodeValue($xpath, $element . "/poco:ims/poco:value/text()", $context);
1200 $poco["xmpp"] = $value;
1203 /// @todo Add support for the following fields that we don't support by now in the contact table:
1204 /// - poco:utcOffset
1210 // If the "hide" element is present then the profile isn't searchable.
1211 $hide = intval(XML::getFirstNodeValue($xpath, $element . "/dfrn:hide/text()", $context) == "true");
1213 Logger::info("Hidden status for contact " . $contact_old["url"] . ": " . $hide);
1215 // If the contact isn't searchable then set the contact to "hidden".
1216 // Problem: This can be manually overridden by the user.
1218 $contact_old["hidden"] = true;
1221 // Save the keywords into the contact table
1223 $tagelements = $xpath->evaluate($element . "/poco:tags/text()", $context);
1224 foreach ($tagelements as $tag) {
1225 $tags[$tag->nodeValue] = $tag->nodeValue;
1229 $poco["keywords"] = implode(", ", $tags);
1232 // "dfrn:birthday" contains the birthday converted to UTC
1233 $birthday = XML::getFirstNodeValue($xpath, $element . "/dfrn:birthday/text()", $context);
1235 $birthday_date = new \DateTime($birthday);
1236 if ($birthday_date > new \DateTime()) {
1237 $poco["bdyear"] = $birthday_date->format("Y");
1239 } catch (\Exception $e) {
1243 // "poco:birthday" is the birthday in the format "yyyy-mm-dd"
1244 $value = XML::getFirstNodeValue($xpath, $element . "/poco:birthday/text()", $context);
1246 if (!in_array($value, ["", "0000-00-00", DBA::NULL_DATE])) {
1247 $bdyear = date("Y");
1248 $value = str_replace(["0000", "0001"], $bdyear, $value);
1250 if (strtotime($value) < time()) {
1251 $value = str_replace($bdyear, $bdyear + 1, $value);
1254 $poco["bd"] = $value;
1257 $contact = array_merge($contact_old, $poco);
1259 if ($contact_old["bdyear"] != $contact["bdyear"]) {
1260 Event::createBirthday($contact, $birthday);
1263 $fields = ['name' => $contact['name'], 'nick' => $contact['nick'], 'about' => $contact['about'],
1264 'location' => $contact['location'], 'addr' => $contact['addr'], 'keywords' => $contact['keywords'],
1265 'bdyear' => $contact['bdyear'], 'bd' => $contact['bd'], 'hidden' => $contact['hidden'],
1266 'xmpp' => $contact['xmpp'], 'name-date' => DateTimeFormat::utc($contact['name-date']),
1267 'unsearchable' => $contact['hidden'], 'uri-date' => DateTimeFormat::utc($contact['uri-date'])];
1269 Contact::update($fields, ['id' => $contact['id'], 'network' => $contact['network']], $contact_old);
1271 // Update the public contact. Don't set the "hidden" value, this is used differently for public contacts
1272 unset($fields['hidden']);
1273 $condition = ['uid' => 0, 'nurl' => Strings::normaliseLink($contact_old['url'])];
1274 Contact::update($fields, $condition, true);
1276 Contact::updateAvatar($contact['id'], $author['avatar']);
1278 $pcid = Contact::getIdForURL($contact_old['url']);
1279 if (!empty($pcid)) {
1280 Contact::updateAvatar($pcid, $author['avatar']);
1288 * Transforms activity objects into an XML string
1290 * @param object $xpath XPath object
1291 * @param object $activity Activity object
1292 * @param string $element element name
1294 * @return string XML string
1295 * @todo Find good type-hints for all parameter
1297 private static function transformActivity($xpath, $activity, string $element): string
1299 if (!is_object($activity)) {
1303 $obj_doc = new DOMDocument("1.0", "utf-8");
1304 $obj_doc->formatOutput = true;
1306 $obj_element = $obj_doc->createElementNS( ActivityNamespace::ATOM1, $element);
1308 $activity_type = $xpath->query("activity:object-type/text()", $activity)->item(0)->nodeValue;
1309 XML::addElement($obj_doc, $obj_element, "type", $activity_type);
1311 $id = $xpath->query("atom:id", $activity)->item(0);
1312 if (is_object($id)) {
1313 $obj_element->appendChild($obj_doc->importNode($id, true));
1316 $title = $xpath->query("atom:title", $activity)->item(0);
1317 if (is_object($title)) {
1318 $obj_element->appendChild($obj_doc->importNode($title, true));
1321 $links = $xpath->query("atom:link", $activity);
1322 if (is_object($links)) {
1323 foreach ($links as $link) {
1324 $obj_element->appendChild($obj_doc->importNode($link, true));
1328 $content = $xpath->query("atom:content", $activity)->item(0);
1329 if (is_object($content)) {
1330 $obj_element->appendChild($obj_doc->importNode($content, true));
1333 $obj_doc->appendChild($obj_element);
1335 $objxml = $obj_doc->saveXML($obj_element);
1337 /// @todo This isn't totally clean. We should find a way to transform the namespaces
1338 $objxml = str_replace("<".$element.' xmlns="http://www.w3.org/2005/Atom">', "<".$element.">", $objxml);
1343 * Processes the mail elements
1345 * @param DOMXPath $xpath XPath object
1346 * @param DOMNode $mail mail elements
1347 * @param array $importer Record of the importer user mixed with contact of the content
1349 * @throws \Exception
1351 private static function processMail(DOMXPath $xpath, DOMNode $mail, array $importer)
1353 Logger::notice("Processing mails");
1356 $msg['uid'] = $importer['importer_uid'];
1357 $msg['from-name'] = XML::getFirstValue($xpath, 'dfrn:sender/dfrn:name/text()', $mail);
1358 $msg['from-url'] = XML::getFirstValue($xpath, 'dfrn:sender/dfrn:uri/text()', $mail);
1359 $msg['from-photo'] = XML::getFirstValue($xpath, 'dfrn:sender/dfrn:avatar/text()', $mail);
1360 $msg['contact-id'] = $importer['id'];
1361 $msg['uri'] = XML::getFirstValue($xpath, 'dfrn:id/text()', $mail);
1362 $msg['parent-uri'] = XML::getFirstValue($xpath, 'dfrn:in-reply-to/text()', $mail);
1363 $msg['created'] = DateTimeFormat::utc(XML::getFirstValue($xpath, 'dfrn:sentdate/text()', $mail));
1364 $msg['title'] = XML::getFirstValue($xpath, 'dfrn:subject/text()', $mail);
1365 $msg['body'] = XML::getFirstValue($xpath, 'dfrn:content/text()', $mail);
1371 * Processes the suggestion elements
1373 * @param DOMXPath $xpath XPath object
1374 * @param DOMNode $suggestion suggestion elements
1375 * @param array $importer Record of the importer user mixed with contact of the content
1377 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1379 private static function processSuggestion(DOMXPath $xpath, DOMNode $suggestion, array $importer)
1381 Logger::notice('Processing suggestions');
1383 $url = $xpath->evaluate('string(dfrn:url[1]/text())', $suggestion);
1384 $cid = Contact::getIdForURL($url);
1385 $note = $xpath->evaluate('string(dfrn:note[1]/text())', $suggestion);
1387 return self::addSuggestion($importer['importer_uid'], $cid, $importer['id'], $note);
1391 * Suggest a given contact to a given user from a given contact
1393 * @param integer $uid
1394 * @param integer $cid
1395 * @param integer $from_cid
1396 * @return bool Was the adding successful?
1398 private static function addSuggestion(int $uid, int $cid, int $from_cid, string $note = ''): bool
1400 $owner = User::getOwnerDataById($uid);
1401 $contact = Contact::getById($cid);
1402 $from_contact = Contact::getById($from_cid);
1404 if (DBA::exists('contact', ['nurl' => Strings::normaliseLink($contact['url']), 'uid' => $uid])) {
1408 // Quit if we already have an introduction for this person
1409 if (DI::intro()->suggestionExistsForUser($cid, $uid)) {
1414 $suggest['uid'] = $uid;
1415 $suggest['cid'] = $from_cid;
1416 $suggest['url'] = $contact['url'];
1417 $suggest['name'] = $contact['name'];
1418 $suggest['photo'] = $contact['photo'];
1419 $suggest['request'] = $contact['request'];
1420 $suggest['title'] = '';
1421 $suggest['body'] = $note;
1423 DI::intro()->save(DI::introFactory()->createNew(
1431 DI::notify()->createFromArray([
1432 'type' => Notification\Type::SUGGEST,
1433 'otype' => Notification\ObjectType::INTRO,
1434 'verb' => Activity::REQ_FRIEND,
1435 'uid' => $owner['uid'],
1436 'cid' => $from_contact['uid'],
1438 'link' => DI::baseUrl().'/notifications/intros',
1445 * Processes the relocation elements
1447 * @param DOMXPath $xpath XPath object
1448 * @param DOMNode $relocation relocation elements
1449 * @param array $importer Record of the importer user mixed with contact of the content
1451 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1452 * @throws \ImagickException
1453 * @todo Find good type-hints for all parameter
1455 private static function processRelocation(DOMXPath $xpath, DOMNode $relocation, array $importer): bool
1457 Logger::notice("Processing relocations");
1459 /// @TODO Rewrite this to one statement
1461 $relocate['uid'] = $importer['importer_uid'];
1462 $relocate['cid'] = $importer['id'];
1463 $relocate['url'] = $xpath->query('dfrn:url/text()', $relocation)->item(0)->nodeValue;
1464 $relocate['addr'] = $xpath->query('dfrn:addr/text()', $relocation)->item(0)->nodeValue;
1465 $relocate['name'] = $xpath->query('dfrn:name/text()', $relocation)->item(0)->nodeValue;
1466 $relocate['avatar'] = $xpath->query('dfrn:avatar/text()', $relocation)->item(0)->nodeValue;
1467 $relocate['photo'] = $xpath->query('dfrn:photo/text()', $relocation)->item(0)->nodeValue;
1468 $relocate['thumb'] = $xpath->query('dfrn:thumb/text()', $relocation)->item(0)->nodeValue;
1469 $relocate['micro'] = $xpath->query('dfrn:micro/text()', $relocation)->item(0)->nodeValue;
1470 $relocate['request'] = $xpath->query('dfrn:request/text()', $relocation)->item(0)->nodeValue;
1471 $relocate['confirm'] = $xpath->query('dfrn:confirm/text()', $relocation)->item(0)->nodeValue;
1472 $relocate['notify'] = $xpath->query('dfrn:notify/text()', $relocation)->item(0)->nodeValue;
1473 $relocate['poll'] = $xpath->query('dfrn:poll/text()', $relocation)->item(0)->nodeValue;
1474 $relocate['sitepubkey'] = $xpath->query('dfrn:sitepubkey/text()', $relocation)->item(0)->nodeValue;
1476 if (($relocate['avatar'] == '') && ($relocate['photo'] != '')) {
1477 $relocate['avatar'] = $relocate['photo'];
1480 if ($relocate['addr'] == '') {
1481 $relocate['addr'] = preg_replace("=(https?://)(.*)/profile/(.*)=ism", '$3@$2', $relocate['url']);
1485 $old = Contact::selectFirst(['photo', 'url'], ['id' => $importer['id'], 'uid' => $importer['importer_uid']]);
1487 if (!DBA::isResult($old)) {
1488 Logger::notice("Query failed to execute, no result returned in " . __FUNCTION__);
1492 // Update the contact table. We try to find every entry.
1494 'name' => $relocate['name'],
1495 'avatar' => $relocate['avatar'],
1496 'url' => $relocate['url'],
1497 'nurl' => Strings::normaliseLink($relocate['url']),
1498 'addr' => $relocate['addr'],
1499 'request' => $relocate['request'],
1500 'confirm' => $relocate['confirm'],
1501 'notify' => $relocate['notify'],
1502 'poll' => $relocate['poll'],
1503 'site-pubkey' => $relocate['sitepubkey'],
1505 $condition = ["(`id` = ?) OR (`nurl` = ?)", $importer['id'], Strings::normaliseLink($old['url'])];
1507 Contact::update($fields, $condition);
1509 Contact::updateAvatar($importer['id'], $relocate['avatar'], true);
1511 Logger::notice('Contacts are updated.');
1514 /// merge with current record, current contents have priority
1515 /// update record, set url-updated
1516 /// update profile photos
1517 /// schedule a scan?
1524 * @param array $current the current item record
1525 * @param array $item the new item record
1526 * @param array $importer Record of the importer user mixed with contact of the content
1527 * @param int $entrytype Is it a toplevel entry, a comment or a relayed comment?
1529 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1530 * @todo set proper type-hints (array?)
1532 private static function updateContent(array $current, array $item, array $importer, int $entrytype)
1536 if (self::isEditedTimestampNewer($current, $item)) {
1537 // do not accept (ignore) an earlier edit than one we currently have.
1538 if (DateTimeFormat::utc($item['edited']) < $current['edited']) {
1543 'title' => $item['title'] ?? '',
1544 'body' => $item['body'] ?? '',
1545 'changed' => DateTimeFormat::utcNow(),
1546 'edited' => DateTimeFormat::utc($item['edited']),
1549 $condition = ["`uri` = ? AND `uid` IN (0, ?)", $item['uri'], $importer['importer_uid']];
1550 Item::update($fields, $condition);
1558 * Detects the entry type of the item
1560 * @param array $importer Record of the importer user mixed with contact of the content
1561 * @param array $item the new item record
1563 * @return int Is it a toplevel entry, a comment or a relayed comment?
1564 * @throws \Exception
1565 * @todo set proper type-hints (array?)
1567 private static function getEntryType(array $importer, array $item): int
1569 if ($item['thr-parent'] != $item['uri']) {
1572 if ($importer['account-type'] == User::ACCOUNT_TYPE_COMMUNITY) {
1575 Logger::notice("possible community action");
1577 $sql_extra = " AND `self` AND `wall`";
1580 // was the top-level post for this action written by somebody on this site?
1581 // Specifically, the recipient?
1582 $parent = Post::selectFirst(['wall'],
1583 ["`uri` = ? AND `uid` = ?" . $sql_extra, $item['thr-parent'], $importer['importer_uid']]);
1585 $is_a_remote_action = DBA::isResult($parent);
1587 if ($is_a_remote_action) {
1588 return DFRN::REPLY_RC;
1593 return DFRN::TOP_LEVEL;
1600 * @param array $item The new item record
1601 * @param array $importer Record of the importer user mixed with contact of the content
1603 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1604 * @todo set proper type-hints (array?)
1606 private static function doPoke(array $item, array $importer)
1608 $verb = urldecode(substr($item['verb'], strpos($item['verb'], '#')+1));
1612 $xo = XML::parseString($item['object']);
1614 if (($xo->type == Activity\ObjectType::PERSON) && ($xo->id)) {
1615 // somebody was poked/prodded. Was it me?
1617 foreach ($xo->link as $l) {
1618 $atts = $l->attributes();
1619 switch ($atts['rel']) {
1621 $Blink = $atts['href'];
1629 if ($Blink && Strings::compareLink($Blink, DI::baseUrl() . '/profile/' . $importer['nickname'])) {
1630 $author = DBA::selectFirst('contact', ['id', 'name', 'thumb', 'url'], ['id' => $item['author-id']]);
1632 $parent = Post::selectFirst(['id'], ['uri' => $item['thr-parent'], 'uid' => $importer['importer_uid']]);
1633 $item['parent'] = $parent['id'];
1635 // send a notification
1636 DI::notify()->createFromArray(
1638 'type' => Notification\Type::POKE,
1639 'otype' => Notification\ObjectType::PERSON,
1640 'activity' => $verb,
1641 'verb' => $item['verb'],
1642 'uid' => $importer['importer_uid'],
1643 'cid' => $author['id'],
1645 'link' => DI::baseUrl() . '/display/' . urlencode($item['guid']),
1653 * Processes several actions, depending on the verb
1655 * @param int $entrytype Is it a toplevel entry, a comment or a relayed comment?
1656 * @param array $importer Record of the importer user mixed with contact of the content
1657 * @param array $item the new item record
1658 * @param bool $is_like Is the verb a "like"?
1660 * @return bool Should the processing of the entries be continued?
1661 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1663 private static function processVerbs(int $entrytype, array $importer, array &$item, bool &$is_like)
1665 Logger::info("Process verb " . $item['verb'] . " and object-type " . $item['object-type'] . " for entrytype " . $entrytype);
1667 if (($entrytype == DFRN::TOP_LEVEL) && !empty($importer['id'])) {
1668 // The filling of the the "contact" variable is done for legcy reasons
1669 // The functions below are partly used by ostatus.php as well - where we have this variable
1670 $contact = Contact::selectFirst([], ['id' => $importer['id']]);
1672 $activity = DI::activity();
1674 // Big question: Do we need these functions? They were part of the "consume_feed" function.
1675 // This function once was responsible for DFRN and OStatus.
1676 if ($activity->match($item['verb'], Activity::FOLLOW)) {
1677 Logger::notice("New follower");
1678 Contact::addRelationship($importer, $contact, $item);
1681 if ($activity->match($item['verb'], Activity::UNFOLLOW)) {
1682 Logger::notice("Lost follower");
1683 Contact::removeFollower($contact);
1686 if ($activity->match($item['verb'], Activity::REQ_FRIEND)) {
1687 Logger::notice("New friend request");
1688 Contact::addRelationship($importer, $contact, $item, true);
1691 if ($activity->match($item['verb'], Activity::UNFRIEND)) {
1692 Logger::notice("Lost sharer");
1693 Contact::removeSharer($contact);
1697 if (($item['verb'] == Activity::LIKE)
1698 || ($item['verb'] == Activity::DISLIKE)
1699 || ($item['verb'] == Activity::ATTEND)
1700 || ($item['verb'] == Activity::ATTENDNO)
1701 || ($item['verb'] == Activity::ATTENDMAYBE)
1702 || ($item['verb'] == Activity::ANNOUNCE)
1705 $item['gravity'] = GRAVITY_ACTIVITY;
1706 // only one like or dislike per person
1707 // split into two queries for performance issues
1709 'uid' => $item['uid'],
1710 'author-id' => $item['author-id'],
1711 'gravity' => GRAVITY_ACTIVITY,
1712 'verb' => $item['verb'],
1713 'parent-uri' => $item['thr-parent'],
1715 if (Post::exists($condition)) {
1719 $condition = ['uid' => $item['uid'], 'author-id' => $item['author-id'], 'gravity' => GRAVITY_ACTIVITY,
1720 'verb' => $item['verb'], 'thr-parent' => $item['thr-parent']];
1721 if (Post::exists($condition)) {
1725 // The owner of an activity must be the author
1726 $item['owner-name'] = $item['author-name'];
1727 $item['owner-link'] = $item['author-link'];
1728 $item['owner-avatar'] = $item['author-avatar'];
1729 $item['owner-id'] = $item['author-id'];
1734 if (($item['verb'] == Activity::TAG) && ($item['object-type'] == Activity\ObjectType::TAGTERM)) {
1735 $xo = XML::parseString($item['object']);
1736 $xt = XML::parseString($item['target']);
1738 if ($xt->type == Activity\ObjectType::NOTE) {
1739 $item_tag = Post::selectFirst(['id', 'uri-id'], ['uri' => $xt->id, 'uid' => $importer['importer_uid']]);
1741 if (!DBA::isResult($item_tag)) {
1742 Logger::notice("Query failed to execute, no result returned in " . __FUNCTION__);
1746 // extract tag, if not duplicate, add to parent item
1748 Tag::store($item_tag['uri-id'], Tag::HASHTAG, $xo->content);
1757 * Processes the link elements
1759 * @param object $links link elements
1760 * @param array $item the item record
1762 * @todo set proper type-hints
1764 private static function parseLinks($links, array &$item)
1771 foreach ($links as $link) {
1772 foreach ($link->attributes as $attributes) {
1773 switch ($attributes->name) {
1774 case 'href' : $href = $attributes->textContent; break;
1775 case 'rel' : $rel = $attributes->textContent; break;
1776 case 'type' : $type = $attributes->textContent; break;
1777 case 'length': $length = $attributes->textContent; break;
1778 case 'title' : $title = $attributes->textContent; break;
1781 if (($rel != '') && ($href != '')) {
1784 $item['plink'] = $href;
1788 Post\Media::insert(['uri-id' => $item['uri-id'], 'type' => Post\Media::DOCUMENT,
1789 'url' => $href, 'mimetype' => $type, 'size' => $length, 'description' => $title]);
1797 * Checks if an incoming message is wanted
1799 * @param array $item
1800 * @param array $imporer
1801 * @return boolean Is the message wanted?
1803 private static function isSolicitedMessage(array $item, array $importer): bool
1805 if (DBA::exists('contact', ["`nurl` = ? AND `uid` != ? AND `rel` IN (?, ?)",
1806 Strings::normaliseLink($item["author-link"]), 0, Contact::FRIEND, Contact::SHARING])) {
1807 Logger::debug('Author has got followers - accepted', ['uri-id' => $item['uri-id'], 'guid' => $item['guid'], 'url' => $item['uri'], 'author' => $item["author-link"]]);
1811 if ($importer['importer_uid'] != 0) {
1812 Logger::debug('Message is directed to a user - accepted', ['uri-id' => $item['uri-id'], 'guid' => $item['guid'], 'url' => $item['uri'], 'importer' => $importer['importer_uid']]);
1816 if ($item['uri'] != $item['thr-parent']) {
1817 Logger::debug('Message is no parent - accepted', ['uri-id' => $item['uri-id'], 'guid' => $item['guid'], 'url' => $item['uri']]);
1821 $tags = array_column(Tag::getByURIId($item['uri-id'], [Tag::HASHTAG]), 'name');
1822 if (Relay::isSolicitedPost($tags, $item['body'], $item['author-id'], $item['uri'], Protocol::DFRN)) {
1823 Logger::debug('Post is accepted because of the relay settings', ['uri-id' => $item['uri-id'], 'guid' => $item['guid'], 'url' => $item['uri'], 'author' => $item["author-link"]]);
1831 * Processes the entry elements which contain the items and comments
1833 * @param array $header Array of the header elements that always stay the same
1834 * @param DOMXPath $xpath XPath object
1835 * @param DOMNode $entry entry elements
1836 * @param array $importer Record of the importer user mixed with contact of the content
1837 * @param string $xml XML
1838 * @param int $protocol Protocol
1840 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1841 * @throws \ImagickException
1842 * @todo Add type-hints
1844 private static function processEntry(array $header, DOMXPath $xpath, DOMNode $entry, array $importer, string $xml, int $protocol)
1846 Logger::notice("Processing entries");
1850 $item['protocol'] = $protocol;
1852 $item['source'] = $xml;
1855 $item['uri'] = XML::getFirstNodeValue($xpath, 'atom:id/text()', $entry);
1857 $item['edited'] = XML::getFirstNodeValue($xpath, 'atom:updated/text()', $entry);
1859 $current = Post::selectFirst(['id', 'uid', 'edited', 'body'],
1860 ['uri' => $item['uri'], 'uid' => $importer['importer_uid']]
1862 // Is there an existing item?
1863 if (DBA::isResult($current) && !self::isEditedTimestampNewer($current, $item)) {
1864 Logger::info("Item " . $item['uri'] . " (" . $item['edited'] . ") already existed.");
1869 $owner = self::fetchauthor($xpath, $entry, $importer, 'dfrn:owner', true, $xml);
1871 $owner_unknown = (isset($owner['contact-unknown']) && $owner['contact-unknown']);
1873 $item['owner-name'] = $owner['name'];
1874 $item['owner-link'] = $owner['link'];
1875 $item['owner-avatar'] = $owner['avatar'];
1876 $item['owner-id'] = Contact::getIdForURL($owner['link'], 0);
1879 $author = self::fetchauthor($xpath, $entry, $importer, 'atom:author', true, $xml);
1881 $item['author-name'] = $author['name'];
1882 $item['author-link'] = $author['link'];
1883 $item['author-avatar'] = $author['avatar'];
1884 $item['author-id'] = Contact::getIdForURL($author['link'], 0);
1886 $item['title'] = XML::getFirstNodeValue($xpath, 'atom:title/text()', $entry);
1888 if (!empty($item['title'])) {
1889 $item['post-type'] = Item::PT_ARTICLE;
1891 $item['post-type'] = Item::PT_NOTE;
1894 $item['created'] = XML::getFirstNodeValue($xpath, 'atom:published/text()', $entry);
1896 $item['body'] = XML::getFirstNodeValue($xpath, 'dfrn:env/text()', $entry);
1897 $item['body'] = str_replace([' ',"\t","\r","\n"], ['','','',''], $item['body']);
1899 $item['body'] = Strings::base64UrlDecode($item['body']);
1901 $item['body'] = BBCode::limitBodySize($item['body']);
1903 /// @todo We should check for a repeated post and if we know the repeated author.
1905 // We don't need the content element since "dfrn:env" is always present
1906 //$item['body'] = $xpath->query('atom:content/text()', $entry)->item(0)->nodeValue;
1907 $item['location'] = XML::getFirstNodeValue($xpath, 'dfrn:location/text()', $entry);
1908 $item['coord'] = XML::getFirstNodeValue($xpath, 'georss:point', $entry);
1909 $item['private'] = XML::getFirstNodeValue($xpath, 'dfrn:private/text()', $entry);
1911 $unlisted = XML::getFirstNodeValue($xpath, 'dfrn:unlisted/text()', $entry);
1912 if (!empty($unlisted) && ($item['private'] != Item::PRIVATE)) {
1913 $item['private'] = Item::UNLISTED;
1916 $item['extid'] = XML::getFirstNodeValue($xpath, 'dfrn:extid/text()', $entry);
1918 if (XML::getFirstNodeValue($xpath, 'dfrn:bookmark/text()', $entry) == 'true') {
1919 $item['post-type'] = Item::PT_PAGE;
1922 $notice_info = $xpath->query('statusnet:notice_info', $entry);
1923 if ($notice_info && ($notice_info->length > 0)) {
1924 foreach ($notice_info->item(0)->attributes as $attributes) {
1925 if ($attributes->name == 'source') {
1926 $item['app'] = strip_tags($attributes->textContent);
1931 $item['guid'] = XML::getFirstNodeValue($xpath, 'dfrn:diaspora_guid/text()', $entry);
1933 $item['uri-id'] = ItemURI::insert(['uri' => $item['uri'], 'guid' => $item['guid']]);
1935 $item['body'] = Item::improveSharedDataInBody($item);
1937 Tag::storeFromBody($item['uri-id'], $item['body']);
1939 // We store the data from "dfrn:diaspora_signature" in a different table, this is done in "Item::insert"
1940 $dsprsig = XML::unescape(XML::getFirstNodeValue($xpath, 'dfrn:diaspora_signature/text()', $entry));
1941 if ($dsprsig != '') {
1942 $signature = json_decode(base64_decode($dsprsig));
1943 // We don't store the old style signatures anymore that also contained the "signature" and "signer"
1944 if (!empty($signature->signed_text) && empty($signature->signature) && empty($signature->signer)) {
1945 $item['diaspora_signed_text'] = $signature->signed_text;
1949 $item['verb'] = XML::getFirstNodeValue($xpath, 'activity:verb/text()', $entry);
1951 if (XML::getFirstNodeValue($xpath, 'activity:object-type/text()', $entry) != '') {
1952 $item['object-type'] = XML::getFirstNodeValue($xpath, 'activity:object-type/text()', $entry);
1955 $object = $xpath->query('activity:object', $entry)->item(0);
1956 $item['object'] = self::transformActivity($xpath, $object, 'object');
1958 if (trim($item['object']) != '') {
1959 $r = XML::parseString($item['object']);
1960 if (isset($r->type)) {
1961 $item['object-type'] = $r->type;
1965 $target = $xpath->query('activity:target', $entry)->item(0);
1966 $item['target'] = self::transformActivity($xpath, $target, 'target');
1968 $categories = $xpath->query('atom:category', $entry);
1970 foreach ($categories as $category) {
1973 foreach ($category->attributes as $attributes) {
1974 if ($attributes->name == 'term') {
1975 $term = $attributes->textContent;
1978 if ($attributes->name == 'scheme') {
1979 $scheme = $attributes->textContent;
1983 if (($term != '') && ($scheme != '')) {
1984 $parts = explode(':', $scheme);
1985 if ((count($parts) >= 4) && (array_shift($parts) == 'X-DFRN')) {
1986 $termurl = array_pop($parts);
1987 $termurl = array_pop($parts) . ':' . $termurl;
1988 Tag::store($item['uri-id'], Tag::IMPLICIT_MENTION, $term, $termurl);
1994 $links = $xpath->query('atom:link', $entry);
1996 self::parseLinks($links, $item);
1999 $item['conversation-uri'] = XML::getFirstNodeValue($xpath, 'ostatus:conversation/text()', $entry);
2001 $conv = $xpath->query('ostatus:conversation', $entry);
2002 if (is_object($conv->item(0))) {
2003 foreach ($conv->item(0)->attributes as $attributes) {
2004 if ($attributes->name == 'ref') {
2005 $item['conversation-uri'] = $attributes->textContent;
2007 if ($attributes->name == 'href') {
2008 $item['conversation-href'] = $attributes->textContent;
2013 // Is it a reply or a top level posting?
2014 $item['thr-parent'] = $item['uri'];
2016 $inreplyto = $xpath->query('thr:in-reply-to', $entry);
2017 if (is_object($inreplyto->item(0))) {
2018 foreach ($inreplyto->item(0)->attributes as $attributes) {
2019 if ($attributes->name == 'ref') {
2020 $item['thr-parent'] = $attributes->textContent;
2025 // Check if the message is wanted
2026 if (!self::isSolicitedMessage($item, $importer)) {
2027 DBA::delete('item-uri', ['uri' => $item['uri']]);
2031 // Get the type of the item (Top level post, reply or remote reply)
2032 $entrytype = self::getEntryType($importer, $item);
2034 // Now assign the rest of the values that depend on the type of the message
2035 if (in_array($entrytype, [DFRN::REPLY, DFRN::REPLY_RC])) {
2036 if (!isset($item['object-type'])) {
2037 $item['object-type'] = Activity\ObjectType::COMMENT;
2040 if ($item['contact-id'] != $owner['contact-id']) {
2041 $item['contact-id'] = $owner['contact-id'];
2044 if (($item['network'] != $owner['network']) && ($owner['network'] != '')) {
2045 $item['network'] = $owner['network'];
2048 if ($item['contact-id'] != $author['contact-id']) {
2049 $item['contact-id'] = $author['contact-id'];
2052 if (($item['network'] != $author['network']) && ($author['network'] != '')) {
2053 $item['network'] = $author['network'];
2057 // Ensure to have the correct share data
2058 $item = Item::addShareDataFromOriginal($item);
2060 if ($entrytype == DFRN::REPLY_RC) {
2062 } elseif ($entrytype == DFRN::TOP_LEVEL) {
2063 if (!isset($item['object-type'])) {
2064 $item['object-type'] = Activity\ObjectType::NOTE;
2068 if (($item['object-type'] == Activity\ObjectType::EVENT) && !$owner_unknown) {
2069 Logger::info("Item " . $item['uri'] . " seems to contain an event.");
2070 $ev = Event::fromBBCode($item['body']);
2071 if ((!empty($ev['desc']) || !empty($ev['summary'])) && !empty($ev['start'])) {
2072 Logger::info("Event in item " . $item['uri'] . " was found.");
2073 $ev['cid'] = $importer['id'];
2074 $ev['uid'] = $importer['importer_uid'];
2075 $ev['uri'] = $item['uri'];
2076 $ev['edited'] = $item['edited'];
2077 $ev['private'] = $item['private'];
2078 $ev['guid'] = $item['guid'];
2079 $ev['plink'] = $item['plink'];
2080 $ev['network'] = $item['network'];
2081 $ev['protocol'] = $item['protocol'];
2082 $ev['direction'] = $item['direction'];
2083 $ev['source'] = $item['source'];
2085 $condition = ['uri' => $item['uri'], 'uid' => $importer['importer_uid']];
2086 $event = DBA::selectFirst('event', ['id'], $condition);
2087 if (DBA::isResult($event)) {
2088 $ev['id'] = $event['id'];
2091 $event_id = Event::store($ev);
2092 Logger::info('Event was stored', ['id' => $event_id]);
2094 $item = Event::getItemArrayForImportedId($event_id, $item);
2099 // Need to initialize variable, otherwise E_NOTICE will happen
2102 if (!self::processVerbs($entrytype, $importer, $item, $is_like)) {
2103 Logger::info("Exiting because 'processVerbs' told us so");
2107 // This check is done here to be able to receive connection requests in "processVerbs"
2108 if (($entrytype == DFRN::TOP_LEVEL) && $owner_unknown) {
2109 Logger::info("Item won't be stored because user " . $importer['importer_uid'] . " doesn't follow " . $item['owner-link'] . ".");
2114 // Update content if 'updated' changes
2115 if (DBA::isResult($current)) {
2116 if (self::updateContent($current, $item, $importer, $entrytype)) {
2117 Logger::info("Item " . $item['uri'] . " was updated.");
2119 Logger::info("Item " . $item['uri'] . " already existed.");
2124 if (in_array($entrytype, [DFRN::REPLY, DFRN::REPLY_RC])) {
2125 // Will be overwritten for sharing accounts in Item::insert
2126 if (empty($item['post-reason']) && ($entrytype == DFRN::REPLY)) {
2127 $item['post-reason'] = Item::PR_COMMENT;
2130 $posted_id = Item::insert($item);
2132 Logger::info("Reply from contact " . $item['contact-id'] . " was stored with id " . $posted_id);
2134 if ($item['uid'] == 0) {
2135 Item::distribute($posted_id);
2140 } else { // $entrytype == DFRN::TOP_LEVEL
2141 if (($importer['uid'] == 0) && ($importer['importer_uid'] != 0)) {
2142 Logger::info("Contact " . $importer['id'] . " isn't known to user " . $importer['importer_uid'] . ". The post will be ignored.");
2145 if (!Strings::compareLink($item['owner-link'], $importer['url'])) {
2147 * The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery,
2148 * but otherwise there's a possible data mixup on the sender's system.
2149 * the tgroup delivery code called from Item::insert will correct it if it's a forum,
2150 * but we're going to unconditionally correct it here so that the post will always be owned by our contact.
2152 Logger::info('Correcting item owner.');
2153 $item['owner-link'] = $importer['url'];
2154 $item['owner-id'] = Contact::getIdForURL($importer['url'], 0);
2157 if (($importer['rel'] == Contact::FOLLOWER) && (!self::tgroupCheck($importer['importer_uid'], $item))) {
2158 Logger::info("Contact " . $importer['id'] . " is only follower and tgroup check was negative.");
2162 // This is my contact on another system, but it's really me.
2163 // Turn this into a wall post.
2164 $notify = Item::isRemoteSelf($importer, $item);
2166 $posted_id = Item::insert($item, $notify);
2169 $posted_id = $notify;
2172 Logger::info("Item was stored with id " . $posted_id);
2174 if ($item['uid'] == 0) {
2175 Item::distribute($posted_id);
2178 if (stristr($item['verb'], Activity::POKE)) {
2179 $item['id'] = $posted_id;
2180 self::doPoke($item, $importer);
2188 * @param DOMXPath $xpath XPath object
2189 * @param DOMNode $deletion deletion elements
2190 * @param array $importer Record of the importer user mixed with contact of the content
2192 * @throws \Exception
2194 private static function processDeletion(DOMXPath $xpath, DOMNode $deletion, array $importer)
2196 Logger::notice("Processing deletions");
2199 foreach ($deletion->attributes as $attributes) {
2200 if ($attributes->name == 'ref') {
2201 $uri = $attributes->textContent;
2205 if (!$uri || !$importer['id']) {
2209 $condition = ['uri' => $uri, 'uid' => $importer['importer_uid']];
2210 $item = Post::selectFirst(['id', 'parent', 'contact-id', 'uri-id', 'deleted', 'gravity'], $condition);
2211 if (!DBA::isResult($item)) {
2212 Logger::info("Item with uri " . $uri . " for user " . $importer['importer_uid'] . " wasn't found.");
2216 if (DBA::exists('post-category', ['uri-id' => $item['uri-id'], 'uid' => $importer['importer_uid'], 'type' => Post\Category::FILE])) {
2217 Logger::notice("Item is filed. It won't be deleted.", ['uri' => $uri, 'uri-id' => $item['uri_id'], 'uid' => $importer['importer_uid']]);
2221 // When it is a starting post it has to belong to the person that wants to delete it
2222 if (($item['gravity'] == GRAVITY_PARENT) && ($item['contact-id'] != $importer['id'])) {
2223 Logger::info("Item with uri " . $uri . " don't belong to contact " . $importer['id'] . " - ignoring deletion.");
2227 // Comments can be deleted by the thread owner or comment owner
2228 if (($item['gravity'] != GRAVITY_PARENT) && ($item['contact-id'] != $importer['id'])) {
2229 $condition = ['id' => $item['parent'], 'contact-id' => $importer['id']];
2230 if (!Post::exists($condition)) {
2231 Logger::info("Item with uri " . $uri . " wasn't found or mustn't be deleted by contact " . $importer['id'] . " - ignoring deletion.");
2236 if ($item['deleted']) {
2240 Logger::info('deleting item '.$item['id'].' uri='.$uri);
2242 Item::markForDeletion(['id' => $item['id']]);
2246 * Imports a DFRN message
2248 * @param string $xml The DFRN message
2249 * @param array $importer Record of the importer user mixed with contact of the content
2250 * @param int $protocol Transport protocol
2251 * @param int $direction Is the message pushed or pulled?
2252 * @return integer Import status
2253 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2254 * @throws \ImagickException
2256 public static function import(string $xml, array $importer, int $protocol, int $direction): int
2262 $doc = new DOMDocument();
2263 @$doc->loadXML($xml);
2265 $xpath = new DOMXPath($doc);
2266 $xpath->registerNamespace('atom', ActivityNamespace::ATOM1);
2267 $xpath->registerNamespace('thr', ActivityNamespace::THREAD);
2268 $xpath->registerNamespace('at', ActivityNamespace::TOMB);
2269 $xpath->registerNamespace('media', ActivityNamespace::MEDIA);
2270 $xpath->registerNamespace('dfrn', ActivityNamespace::DFRN);
2271 $xpath->registerNamespace('activity', ActivityNamespace::ACTIVITY);
2272 $xpath->registerNamespace('georss', ActivityNamespace::GEORSS);
2273 $xpath->registerNamespace('poco', ActivityNamespace::POCO);
2274 $xpath->registerNamespace('ostatus', ActivityNamespace::OSTATUS);
2275 $xpath->registerNamespace('statusnet', ActivityNamespace::STATUSNET);
2278 $header['uid'] = $importer['importer_uid'];
2279 $header['network'] = Protocol::DFRN;
2280 $header['wall'] = 0;
2281 $header['origin'] = 0;
2282 $header['contact-id'] = $importer['id'];
2283 $header['direction'] = $direction;
2285 if ($direction === Conversation::RELAY) {
2286 $header['post-reason'] = Item::PR_RELAY;
2289 // Update the contact table if the data has changed
2291 // The "atom:author" is only present in feeds
2292 if ($xpath->query('/atom:feed/atom:author')->length > 0) {
2293 self::fetchauthor($xpath, $doc->firstChild, $importer, 'atom:author', false, $xml);
2296 // Only the "dfrn:owner" in the head section contains all data
2297 if ($xpath->query('/atom:feed/dfrn:owner')->length > 0) {
2298 self::fetchauthor($xpath, $doc->firstChild, $importer, 'dfrn:owner', false, $xml);
2301 Logger::info("Import DFRN message for user " . $importer['importer_uid'] . " from contact " . $importer['id']);
2303 if (!empty($importer['gsid']) && ($protocol == Conversation::PARCEL_DIASPORA_DFRN)) {
2304 GServer::setProtocol($importer['gsid'], Post\DeliveryData::DFRN);
2307 // is it a public forum? Private forums aren't exposed with this method
2308 $forum = intval(XML::getFirstNodeValue($xpath, '/atom:feed/dfrn:community/text()'));
2310 // The account type is new since 3.5.1
2311 if ($xpath->query('/atom:feed/dfrn:account_type')->length > 0) {
2312 // Hint: We are using separate update calls for uid=0 and uid!=0 since a combined call is bad for the database performance
2314 $accounttype = intval(XML::getFirstNodeValue($xpath, '/atom:feed/dfrn:account_type/text()'));
2316 if ($accounttype != $importer['contact-type']) {
2317 Contact::update(['contact-type' => $accounttype], ['id' => $importer['id']]);
2319 // Updating the public contact as well
2320 Contact::update(['contact-type' => $accounttype], ['uid' => 0, 'nurl' => $importer['nurl']]);
2322 // A forum contact can either have set "forum" or "prv" - but not both
2323 if ($accounttype == User::ACCOUNT_TYPE_COMMUNITY) {
2324 // It's a forum, so either set the public or private forum flag
2325 $condition = ['(`forum` != ? OR `prv` != ?) AND `id` = ?', $forum, !$forum, $importer['id']];
2326 Contact::update(['forum' => $forum, 'prv' => !$forum], $condition);
2328 // Updating the public contact as well
2329 $condition = ['(`forum` != ? OR `prv` != ?) AND `uid` = 0 AND `nurl` = ?', $forum, !$forum, $importer['nurl']];
2330 Contact::update(['forum' => $forum, 'prv' => !$forum], $condition);
2332 // It's not a forum, so remove the flags
2333 $condition = ['(`forum` OR `prv`) AND `id` = ?', $importer['id']];
2334 Contact::update(['forum' => false, 'prv' => false], $condition);
2336 // Updating the public contact as well
2337 $condition = ['(`forum` OR `prv`) AND `uid` = 0 AND `nurl` = ?', $importer['nurl']];
2338 Contact::update(['forum' => false, 'prv' => false], $condition);
2340 } elseif ($forum != $importer['forum']) { // Deprecated since 3.5.1
2341 $condition = ['`forum` != ? AND `id` = ?', $forum, $importer['id']];
2342 Contact::update(['forum' => $forum], $condition);
2344 // Updating the public contact as well
2345 $condition = ['`forum` != ? AND `uid` = 0 AND `nurl` = ?', $forum, $importer['nurl']];
2346 Contact::update(['forum' => $forum], $condition);
2350 // We are processing relocations even if we are ignoring a contact
2351 $relocations = $xpath->query('/atom:feed/dfrn:relocate');
2352 foreach ($relocations as $relocation) {
2353 self::processRelocation($xpath, $relocation, $importer);
2356 if (($importer['uid'] != 0) && !$importer['readonly']) {
2357 $mails = $xpath->query('/atom:feed/dfrn:mail');
2358 foreach ($mails as $mail) {
2359 self::processMail($xpath, $mail, $importer);
2362 $suggestions = $xpath->query('/atom:feed/dfrn:suggest');
2363 foreach ($suggestions as $suggestion) {
2364 self::processSuggestion($xpath, $suggestion, $importer);
2368 $deletions = $xpath->query('/atom:feed/at:deleted-entry');
2369 if (!empty($deletions)) {
2370 foreach ($deletions as $deletion) {
2371 self::processDeletion($xpath, $deletion, $importer);
2373 if (count($deletions) > 0) {
2374 Logger::notice(count($deletions) . ' deletions had been processed');
2379 $entries = $xpath->query('/atom:feed/atom:entry');
2380 foreach ($entries as $entry) {
2381 self::processEntry($header, $xpath, $entry, $importer, $xml, $protocol);
2384 Logger::info("Import done for user " . $importer['importer_uid'] . " from contact " . $importer['id']);
2389 * Returns the activity verb
2391 * @param array $item Item array
2393 * @return string activity verb
2395 private static function constructVerb(array $item): string
2397 if ($item['verb']) {
2398 return $item['verb'];
2400 return Activity::POST;
2403 // @TODO Documentation missing
2404 private static function tgroupCheck(int $uid, array $item): bool
2408 // check that the message originated elsewhere and is a top-level post
2410 if ($item['wall'] || $item['origin'] || ($item['uri'] != $item['thr-parent'])) {
2414 $user = DBA::selectFirst('user', ['account-type', 'nickname'], ['uid' => $uid]);
2415 if (!DBA::isResult($user)) {
2419 $link = Strings::normaliseLink(DI::baseUrl() . '/profile/' . $user['nickname']);
2422 * Diaspora uses their own hardwired link URL in @-tags
2423 * instead of the one we supply with webfinger
2425 $dlink = Strings::normaliseLink(DI::baseUrl() . '/u/' . $user['nickname']);
2427 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
2429 foreach ($matches as $mtch) {
2430 if (Strings::compareLink($link, $mtch[1]) || Strings::compareLink($dlink, $mtch[1])) {
2432 Logger::notice('mention found: ' . $mtch[2]);
2441 return ($user['account-type'] == User::ACCOUNT_TYPE_COMMUNITY);
2445 * This function returns true if $update has an edited timestamp newer
2446 * than $existing, i.e. $update contains new data which should override
2447 * what's already there. If there is no timestamp yet, the update is
2448 * assumed to be newer. If the update has no timestamp, the existing
2449 * item is assumed to be up-to-date. If the timestamps are equal it
2450 * assumes the update has been seen before and should be ignored.
2452 * @param array $existing
2453 * @param array $update
2455 * @throws \Exception
2457 private static function isEditedTimestampNewer(array $existing, array $update): bool
2459 if (empty($existing['edited'])) {
2462 if (empty($update['edited'])) {
2466 $existing_edited = DateTimeFormat::utc($existing['edited']);
2467 $update_edited = DateTimeFormat::utc($update['edited']);
2469 return (strcmp($existing_edited, $update_edited) < 0);
2473 * Checks if the given contact url does support DFRN
2475 * @param string $url profile url
2477 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2478 * @throws \ImagickException
2480 public static function isSupportedByContactUrl(string $url): bool
2482 $probe = Probe::uri($url, Protocol::DFRN);
2483 return $probe['network'] == Protocol::DFRN;