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;
24 use Friendica\Content\Feature;
25 use Friendica\Content\Text\BBCode;
26 use Friendica\Content\Text\Markdown;
27 use Friendica\Core\Cache\Enum\Duration;
28 use Friendica\Core\Logger;
29 use Friendica\Core\Protocol;
30 use Friendica\Core\System;
31 use Friendica\Core\Worker;
32 use Friendica\Database\DBA;
34 use Friendica\Model\Contact;
35 use Friendica\Model\Conversation;
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\Post;
42 use Friendica\Model\Tag;
43 use Friendica\Model\User;
44 use Friendica\Network\HTTPClient\Client\HttpClientAccept;
45 use Friendica\Network\Probe;
46 use Friendica\Util\Crypto;
47 use Friendica\Util\DateTimeFormat;
48 use Friendica\Util\Map;
49 use Friendica\Util\Network;
50 use Friendica\Util\Strings;
51 use Friendica\Util\XML;
52 use Friendica\Worker\Delivery;
53 use GuzzleHttp\Psr7\Uri;
57 * This class contain functions to create and send Diaspora XML files
63 const FORCED_FETCH = 2;
66 * Return a list of participating contacts for a thread
68 * This is used for the participation feature.
69 * One of the parameters is a contact array.
70 * This is done to avoid duplicates.
72 * @param array $item Item that is about to be delivered
73 * @param array $contacts The previously fetched contacts
75 * @return array of relay servers
78 public static function participantsForThread(array $item, array $contacts): array
80 if (!in_array($item['private'], [Item::PUBLIC, Item::UNLISTED]) || in_array($item['verb'], [Activity::FOLLOW, Activity::TAG])) {
81 Logger::info('Item is private or a participation request. It will not be relayed', ['guid' => $item['guid'], 'private' => $item['private'], 'verb' => $item['verb']]);
85 $items = Post::select(['author-id', 'author-link', 'parent-author-link', 'parent-guid', 'guid'],
86 ['parent' => $item['parent'], 'gravity' => [GRAVITY_COMMENT, GRAVITY_ACTIVITY]]);
87 while ($item = Post::fetch($items)) {
88 $contact = DBA::selectFirst('contact', ['id', 'url', 'name', 'protocol', 'batch', 'network'],
89 ['id' => $item['author-id']]);
90 if (!DBA::isResult($contact) || empty($contact['batch']) ||
91 ($contact['network'] != Protocol::DIASPORA) ||
92 Strings::compareLink($item['parent-author-link'], $item['author-link'])) {
97 foreach ($contacts as $entry) {
98 if ($entry['batch'] == $contact['batch']) {
104 Logger::info('Add participant to receiver list', ['parent' => $item['parent-guid'], 'item' => $item['guid'], 'participant' => $contact['url']]);
105 $contacts[] = $contact;
114 * verify the envelope and return the verified data
116 * @param string $envelope The magic envelope
118 * @return string|bool verified data or false on error
119 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
120 * @throws \ImagickException
122 private static function verifyMagicEnvelope(string $envelope)
124 $basedom = XML::parseString($envelope, true);
126 if (!is_object($basedom)) {
127 Logger::notice('Envelope is no XML file');
131 $children = $basedom->children(ActivityNamespace::SALMON_ME);
133 if (sizeof($children) == 0) {
134 Logger::notice('XML has no children');
140 $data = Strings::base64UrlDecode($children->data);
141 $type = $children->data->attributes()->type[0];
143 $encoding = $children->encoding;
145 $alg = $children->alg;
147 $sig = Strings::base64UrlDecode($children->sig);
148 $key_id = $children->sig->attributes()->key_id[0];
150 $handle = Strings::base64UrlDecode($key_id);
153 $b64url_data = Strings::base64UrlEncode($data);
154 $msg = str_replace(["\n", "\r", " ", "\t"], ['', '', '', ''], $b64url_data);
156 $signable_data = $msg . '.' . Strings::base64UrlEncode($type) . '.' . Strings::base64UrlEncode($encoding) . '.' . Strings::base64UrlEncode($alg);
159 Logger::notice('No author could be decoded. Discarding. Message: ' . $envelope);
163 $key = self::key($handle);
165 Logger::notice("Couldn't get a key for handle " . $handle . ". Discarding.");
169 $verify = Crypto::rsaVerify($signable_data, $sig, $key);
171 Logger::notice('Message from ' . $handle . ' did not verify. Discarding.');
179 * encrypts data via AES
181 * @param string $key The AES key
182 * @param string $iv The IV (is used for CBC encoding)
183 * @param string $data The data that is to be encrypted
185 * @return string encrypted data
187 private static function aesEncrypt(string $key, string $iv, string $data): string
189 return openssl_encrypt($data, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
193 * decrypts data via AES
195 * @param string $key The AES key
196 * @param string $iv The IV (is used for CBC encoding)
197 * @param string $encrypted The encrypted data
199 * @return string decrypted data
201 private static function aesDecrypt(string $key, string $iv, string $encrypted): string
203 return openssl_decrypt($encrypted, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
207 * Decodes incoming Diaspora message in the new format. This method returns false on an error.
209 * @param string $raw raw post message
210 * @param string $privKey The private key of the importer
211 * @param boolean $no_exit Don't do an http exit on error
214 * 'message' -> decoded Diaspora XML message
215 * 'author' -> author diaspora handle
216 * 'key' -> author public key (converted to pkcs#8)
217 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
218 * @throws \ImagickException
220 public static function decodeRaw(string $raw, string $privKey = '', bool $no_exit = false)
222 $data = json_decode($raw);
224 // Is it a private post? Then decrypt the outer Salmon
225 if (is_object($data)) {
226 $encrypted_aes_key_bundle = base64_decode($data->aes_key);
227 $ciphertext = base64_decode($data->encrypted_magic_envelope);
229 $outer_key_bundle = '';
230 @openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $privKey);
231 $j_outer_key_bundle = json_decode($outer_key_bundle);
233 if (!is_object($j_outer_key_bundle)) {
234 Logger::notice('Outer Salmon did not verify. Discarding.');
238 throw new \Friendica\Network\HTTPException\BadRequestException();
242 $outer_iv = base64_decode($j_outer_key_bundle->iv);
243 $outer_key = base64_decode($j_outer_key_bundle->key);
245 $xml = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
250 $basedom = XML::parseString($xml, true);
252 if (!is_object($basedom)) {
253 Logger::notice('Received data does not seem to be an XML. Discarding. '.$xml);
257 throw new \Friendica\Network\HTTPException\BadRequestException();
261 $base = $basedom->children(ActivityNamespace::SALMON_ME);
263 // Not sure if this cleaning is needed
264 $data = str_replace([" ", "\t", "\r", "\n"], ['', '', '', ''], $base->data);
266 // Build the signed data
267 $type = $base->data[0]->attributes()->type[0];
268 $encoding = $base->encoding;
270 $signed_data = $data . '.' . Strings::base64UrlEncode($type) . '.' . Strings::base64UrlEncode($encoding) . '.' . Strings::base64UrlEncode($alg);
272 // This is the signature
273 $signature = Strings::base64UrlDecode($base->sig);
275 // Get the senders' public key
276 $key_id = $base->sig[0]->attributes()->key_id[0];
277 $author_addr = base64_decode($key_id);
278 if ($author_addr == '') {
279 Logger::notice('No author could be decoded. Discarding. Message: ' . $xml);
283 throw new \Friendica\Network\HTTPException\BadRequestException();
287 $key = self::key($author_addr);
289 Logger::notice("Couldn't get a key for handle " . $author_addr . ". Discarding.");
293 throw new \Friendica\Network\HTTPException\BadRequestException();
297 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
299 Logger::notice('Message did not verify. Discarding.');
303 throw new \Friendica\Network\HTTPException\BadRequestException();
308 'message' => (string)Strings::base64UrlDecode($base->data),
309 'author' => XML::unescape($author_addr),
310 'key' => (string)$key
315 * Decodes incoming Diaspora message in the deprecated format
317 * @param string $xml urldecoded Diaspora salmon
318 * @param string $privKey The private key of the importer
321 * 'message' -> decoded Diaspora XML message
322 * 'author' -> author diaspora handle
323 * 'key' -> author public key (converted to pkcs#8)
324 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
325 * @throws \ImagickException
327 public static function decode(string $xml, string $privKey = '')
330 $basedom = XML::parseString($xml);
332 if (!is_object($basedom)) {
333 Logger::notice('XML is not parseable.');
336 $children = $basedom->children('https://joindiaspora.com/protocol');
338 $inner_aes_key = null;
341 if ($children->header) {
343 $author_link = str_replace('acct:', '', $children->header->author_id);
345 // This happens with posts from a relais
346 if (empty($privKey)) {
347 Logger::info('This is no private post in the old format');
351 $encrypted_header = json_decode(base64_decode($children->encrypted_header));
353 $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
354 $ciphertext = base64_decode($encrypted_header->ciphertext);
356 $outer_key_bundle = '';
357 openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $privKey);
359 $j_outer_key_bundle = json_decode($outer_key_bundle);
361 $outer_iv = base64_decode($j_outer_key_bundle->iv);
362 $outer_key = base64_decode($j_outer_key_bundle->key);
364 $decrypted = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
366 Logger::info('decrypted', ['data' => $decrypted]);
367 $idom = XML::parseString($decrypted);
369 $inner_iv = base64_decode($idom->iv);
370 $inner_aes_key = base64_decode($idom->aes_key);
372 $author_link = str_replace('acct:', '', $idom->author_id);
375 $dom = $basedom->children(ActivityNamespace::SALMON_ME);
377 // figure out where in the DOM tree our data is hiding
380 if ($dom->provenance->data) {
381 $base = $dom->provenance;
382 } elseif ($dom->env->data) {
384 } elseif ($dom->data) {
389 Logger::notice('unable to locate salmon data in xml');
390 throw new \Friendica\Network\HTTPException\BadRequestException();
394 // Stash the signature away for now. We have to find their key or it won't be good for anything.
395 $signature = Strings::base64UrlDecode($base->sig);
399 // strip whitespace so our data element will return to one big base64 blob
400 $data = str_replace([" ", "\t", "\r", "\n"], ['', '', '', ''], $base->data);
403 // stash away some other stuff for later
405 $type = $base->data[0]->attributes()->type[0];
406 $keyhash = $base->sig[0]->attributes()->keyhash[0];
407 $encoding = $base->encoding;
411 $signed_data = $data.'.'.Strings::base64UrlEncode($type).'.'.Strings::base64UrlEncode($encoding).'.'.Strings::base64UrlEncode($alg);
415 $data = Strings::base64UrlDecode($data);
419 $inner_decrypted = $data;
421 // Decode the encrypted blob
422 $inner_encrypted = base64_decode($data);
423 $inner_decrypted = self::aesDecrypt($inner_aes_key, $inner_iv, $inner_encrypted);
427 Logger::notice('Could not retrieve author URI.');
428 throw new \Friendica\Network\HTTPException\BadRequestException();
430 // Once we have the author URI, go to the web and try to find their public key
431 // (first this will look it up locally if it is in the fcontact cache)
432 // This will also convert diaspora public key from pkcs#1 to pkcs#8
434 Logger::notice('Fetching key for '.$author_link);
435 $key = self::key($author_link);
438 Logger::notice('Could not retrieve author key.');
439 throw new \Friendica\Network\HTTPException\BadRequestException();
442 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
445 Logger::notice('Message did not verify. Discarding.');
446 throw new \Friendica\Network\HTTPException\BadRequestException();
449 Logger::notice('Message verified.');
452 'message' => (string)$inner_decrypted,
453 'author' => XML::unescape($author_link),
454 'key' => (string)$key
460 * Dispatches public messages and find the fitting receivers
462 * @param array $msg The post that will be dispatched
463 * @param int $direction Indicates if the message had been fetched or pushed (self::PUSHED, self::FETCHED, self::FORCED_FETCH)
465 * @return int|bool The message id of the generated message, "true" or "false" if there was an error
466 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
467 * @throws \ImagickException
469 public static function dispatchPublic(array $msg, int $direction)
471 $enabled = intval(DI::config()->get('system', 'diaspora_enabled'));
473 Logger::notice('Diaspora is disabled');
477 if (!($fields = self::validPosting($msg))) {
478 Logger::warning('Invalid posting');
484 'page-flags' => User::PAGE_FLAGS_FREELOVE
486 $success = self::dispatch($importer, $msg, $fields, $direction);
492 * Dispatches the different message types to the different functions
494 * @param array $importer Array of the importer user
495 * @param array $msg The post that will be dispatched
496 * @param SimpleXMLElement $fields SimpleXML object that contains the message
497 * @param int $direction Indicates if the message had been fetched or pushed (self::PUSHED, self::FETCHED, self::FORCED_FETCH)
499 * @return int|bool The message id of the generated message, "true" or "false" if there was an error
500 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
501 * @throws \ImagickException
503 public static function dispatch(array $importer, array $msg, SimpleXMLElement $fields = null, int $direction = self::PUSHED)
505 // The sender is the handle of the contact that sent the message.
506 // This will often be different with relayed messages (for example "like" and "comment")
507 $sender = $msg['author'];
509 // This is only needed for private postings since this is already done for public ones before
510 if (is_null($fields)) {
512 if (!($fields = self::validPosting($msg))) {
513 Logger::warning('Invalid posting');
520 $type = $fields->getName();
522 Logger::info('Received message', ['type' => $type, 'sender' => $sender, 'user' => $importer['uid']]);
525 case 'account_migration':
527 Logger::notice('Message with type ' . $type . ' is not private, quitting.');
530 return self::receiveAccountMigration($importer, $fields);
532 case 'account_deletion':
533 return self::receiveAccountDeletion($fields);
536 return self::receiveComment($importer, $sender, $fields, $msg['message'], $direction);
540 Logger::notice('Message with type ' . $type . ' is not private, quitting.');
543 return self::receiveContactRequest($importer, $fields);
547 Logger::notice('Message with type ' . $type . ' is not private, quitting.');
550 return self::receiveConversation($importer, $msg, $fields);
553 return self::receiveLike($importer, $sender, $fields, $direction);
557 Logger::notice('Message with type ' . $type . ' is not private, quitting.');
560 return self::receiveMessage($importer, $fields);
562 case 'participation':
564 Logger::notice('Message with type ' . $type . ' is not private, quitting.');
567 return self::receiveParticipation($importer, $fields, $direction);
569 case 'photo': // Not implemented
570 return self::receivePhoto($importer, $fields);
572 case 'poll_participation': // Not implemented
573 return self::receivePollParticipation($importer, $fields);
577 Logger::notice('Message with type ' . $type . ' is not private, quitting.');
580 return self::receiveProfile($importer, $fields);
583 return self::receiveReshare($importer, $fields, $msg['message'], $direction);
586 return self::receiveRetraction($importer, $sender, $fields);
588 case 'status_message':
589 return self::receiveStatusMessage($importer, $fields, $msg['message'], $direction);
592 Logger::notice('Unknown message type ' . $type);
598 * Checks if a posting is valid and fetches the data fields.
600 * This function does not only check the signature.
601 * It also does the conversion between the old and the new diaspora format.
603 * @param array $msg Array with the XML, the sender handle and the sender signature
605 * @return bool|SimpleXMLElement If the posting is valid then an array with an SimpleXML object is returned
606 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
607 * @throws \ImagickException
609 private static function validPosting(array $msg)
611 $data = XML::parseString($msg['message']);
613 if (!is_object($data)) {
614 Logger::info('No valid XML', ['message' => $msg['message']]);
618 // Is this the new or the old version?
619 if ($data->getName() == 'XML') {
621 foreach ($data->post->children() as $child) {
629 $type = $element->getName();
632 Logger::debug('Got message', ['type' => $type, 'message' => $msg['message']]);
634 // All retractions are handled identically from now on.
635 // In the new version there will only be "retraction".
636 if (in_array($type, ['signed_retraction', 'relayable_retraction']))
637 $type = 'retraction';
639 if ($type == 'request') {
643 $fields = new SimpleXMLElement('<' . $type . '/>');
646 $author_signature = null;
647 $parent_author_signature = null;
649 foreach ($element->children() as $fieldname => $entry) {
651 // Translation for the old XML structure
652 if ($fieldname == 'diaspora_handle') {
653 $fieldname = 'author';
655 if ($fieldname == 'participant_handles') {
656 $fieldname = 'participants';
658 if (in_array($type, ['like', 'participation'])) {
659 if ($fieldname == 'target_type') {
660 $fieldname = 'parent_type';
663 if ($fieldname == 'sender_handle') {
664 $fieldname = 'author';
666 if ($fieldname == 'recipient_handle') {
667 $fieldname = 'recipient';
669 if ($fieldname == 'root_diaspora_id') {
670 $fieldname = 'root_author';
672 if ($type == 'status_message') {
673 if ($fieldname == 'raw_message') {
677 if ($type == 'retraction') {
678 if ($fieldname == 'post_guid') {
679 $fieldname = 'target_guid';
681 if ($fieldname == 'type') {
682 $fieldname = 'target_type';
687 if (($fieldname == 'author_signature') && ($entry != '')) {
688 $author_signature = base64_decode($entry);
689 } elseif (($fieldname == 'parent_author_signature') && ($entry != '')) {
690 $parent_author_signature = base64_decode($entry);
691 } elseif (!in_array($fieldname, ['author_signature', 'parent_author_signature', 'target_author_signature'])) {
692 if ($signed_data != '') {
696 $signed_data .= $entry;
698 if (!in_array($fieldname, ['parent_author_signature', 'target_author_signature'])
699 || ($orig_type == 'relayable_retraction')
701 XML::copy($entry, $fields, $fieldname);
705 // This is something that shouldn't happen at all.
706 if (in_array($type, ['status_message', 'reshare', 'profile'])) {
707 if ($msg['author'] != $fields->author) {
708 Logger::notice('Message handle is not the same as envelope sender. Quitting this message.', ['author1' => $msg['author'], 'author2' => $fields->author]);
713 // Only some message types have signatures. So we quit here for the other types.
714 if (!in_array($type, ['comment', 'like'])) {
718 if (!isset($author_signature) && ($msg['author'] == $fields->author)) {
719 Logger::debug('No author signature, but the sender matches the author', ['type' => $type, 'msg-author' => $msg['author'], 'message' => $msg['message']]);
723 // No author_signature? This is a must, so we quit.
724 if (!isset($author_signature)) {
725 Logger::info('No author signature', ['type' => $type, 'msg-author' => $msg['author'], 'fields-author' => $fields->author, 'message' => $msg['message']]);
729 if (isset($parent_author_signature)) {
730 $key = self::key($msg['author']);
732 Logger::info('No key found for parent', ['author' => $msg['author']]);
736 if (!Crypto::rsaVerify($signed_data, $parent_author_signature, $key, 'sha256')) {
737 Logger::info('No valid parent author signature for parent author ' . $msg['author'] . ' in type ' . $type . ' - signed data: ' . $signed_data . ' - Message: ' . $msg['message'] . ' - Signature ' . $parent_author_signature);
742 $key = self::key($fields->author);
744 Logger::info('No key found', ['author' => $fields->author]);
748 if (!Crypto::rsaVerify($signed_data, $author_signature, $key, 'sha256')) {
749 Logger::info('No valid author signature for author ' . $fields->author . ' in type ' . $type . ' - signed data: ' . $signed_data . ' - Message: ' . $msg['message'] . ' - Signature ' . $author_signature);
757 * Fetches the public key for a given handle
759 * @param string $handle The handle
761 * @return string The public key
762 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
763 * @throws \ImagickException
765 private static function key(string $handle = null): string
767 $handle = strval($handle);
769 Logger::notice('Fetching diaspora key', ['handle' => $handle, 'callstack' => System::callstack(20)]);
771 $fcontact = FContact::getByURL($handle);
772 if (!empty($fcontact['pubkey'])) {
773 return $fcontact['pubkey'];
780 * get a handle (user@domain.tld) from a given contact id
782 * @param int $contact_id The id in the contact table
783 * @param int $pcontact_id The id in the contact table (Used for the public contact)
785 * @return string the handle
788 private static function handleFromContact(int $contact_id, int $pcontact_id = 0): string
792 if ($pcontact_id != 0) {
793 $contact = Contact::getById($pcontact_id, ['addr']);
794 if (DBA::isResult($contact)) {
795 $handle = $contact['addr'];
799 if (empty($handle)) {
800 $contact = Contact::getById($contact_id, ['addr']);
801 if (DBA::isResult($contact)) {
802 $handle = $contact['addr'];
806 return strtolower($handle);
810 * Get a contact id for a given handle
812 * @todo Move to Friendica\Model\Contact
814 * @param int $uid The user id
815 * @param string $handle The handle in the format user@domain.tld
817 * @return array Contact data
818 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
819 * @throws \ImagickException
821 private static function contactByHandle(int $uid, string $handle): array
823 return Contact::getByURL($handle, null, [], $uid);
827 * Checks if the given contact url does support ActivityPub
829 * @param string $url profile url
830 * @param boolean $update true = always update, false = never update, null = update when not found or outdated
832 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
833 * @throws \ImagickException
835 public static function isSupportedByContactUrl(string $url, $update = null)
837 return !empty(FContact::getByURL($url, $update));
841 * Check if posting is allowed for this contact
843 * @param array $importer Array of the importer user
844 * @param array $contact The contact that is checked
845 * @param bool $is_comment Is the check for a comment?
847 * @return bool is the contact allowed to post?
849 private static function postAllow(array $importer, array $contact, bool $is_comment = false): bool
852 * Perhaps we were already sharing with this person. Now they're sharing with us.
853 * That makes us friends.
854 * Normally this should have handled by getting a request - but this could get lost
856 // It is deactivated by now, due to side effects. See issue https://github.com/friendica/friendica/pull/4033
857 // It is not removed by now. Possibly the code is needed?
858 //if (!$is_comment && $contact["rel"] == Contact::FOLLOWER && in_array($importer["page-flags"], array(User::PAGE_FLAGS_FREELOVE))) {
860 // array('rel' => Contact::FRIEND, 'writable' => true),
861 // array('id' => $contact["id"], 'uid' => $contact["uid"])
864 // $contact["rel"] = Contact::FRIEND;
865 // Logger::notice("defining user ".$contact["nick"]." as friend");
868 // Contact server is blocked
869 if (Network::isUrlBlocked($contact['url'])) {
871 // We don't seem to like that person
872 } elseif ($contact['blocked']) {
873 // Maybe blocked, don't accept.
875 // We are following this person?
876 } elseif (($contact['rel'] == Contact::SHARING) || ($contact['rel'] == Contact::FRIEND)) {
877 // Yes, then it is fine.
879 // Is the message a global user or a comment?
880 } elseif (($importer['uid'] == 0) || $is_comment) {
881 // Messages for the global users and comments are always accepted
889 * Fetches the contact id for a handle and checks if posting is allowed
891 * @param array $importer Array of the importer user
892 * @param string $handle The checked handle in the format user@domain.tld
893 * @param bool $is_comment Is the check for a comment?
895 * @return array|bool The contact data or false on error
898 private static function allowedContactByHandle(array $importer, string $handle, bool $is_comment = false)
900 $contact = self::contactByHandle($importer['uid'], $handle);
902 Logger::notice('A Contact for handle ' . $handle . ' and user ' . $importer['uid'] . ' was not found');
903 // If a contact isn't found, we accept it anyway if it is a comment
904 if ($is_comment && ($importer['uid'] != 0)) {
905 return self::contactByHandle(0, $handle);
906 } elseif ($is_comment) {
913 if (!self::postAllow($importer, $contact, $is_comment)) {
914 Logger::notice('The handle: ' . $handle . ' is not allowed to post to user ' . $importer['uid']);
921 * Does the message already exists on the system?
923 * @param int $uid The user id
924 * @param string $guid The guid of the message
926 * @return int|bool message id if the message already was stored into the system - or false.
929 private static function messageExists(int $uid, string $guid)
931 $item = Post::selectFirst(['id'], ['uid' => $uid, 'guid' => $guid]);
932 if (DBA::isResult($item)) {
933 Logger::notice('Message ' . $guid . ' already exists for user ' . $uid);
941 * Checks for links to posts in a message
943 * @param array $item The item array
946 private static function fetchGuid(array $item)
948 preg_replace_callback(
949 "=diaspora://.*?/post/([0-9A-Za-z\-_@.:]{15,254}[0-9A-Za-z])=ism",
950 function ($match) use ($item) {
951 self::fetchGuidSub($match, $item);
956 preg_replace_callback(
957 "&\[url=/?posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
958 function ($match) use ($item) {
959 self::fetchGuidSub($match, $item);
966 * Checks for relative /people/* links in an item body to match local
967 * contacts or prepends the remote host taken from the author link.
969 * @param string $body The item body to replace links from
970 * @param string $author_link The author link for missing local contact fallback
972 * @return string the replaced string
974 public static function replacePeopleGuid(string $body, string $author_link): string
976 $return = preg_replace_callback(
977 "&\[url=/people/([^\[\]]*)\](.*)\[\/url\]&Usi",
978 function ($match) use ($author_link) {
980 // 0 => '[url=/people/0123456789abcdef]Foo Bar[/url]'
981 // 1 => '0123456789abcdef'
983 $handle = FContact::getUrlByGuid($match[1]);
986 $return = '@[url=' . $handle . ']' . $match[2] . '[/url]';
988 // No local match, restoring absolute remote URL from author scheme and host
989 $author_url = parse_url($author_link);
990 $return = '[url=' . $author_url['scheme'] . '://' . $author_url['host'] . '/people/' . $match[1] . ']' . $match[2] . '[/url]';
1002 * sub function of "fetchGuid" which checks for links in messages
1004 * @param array $match array containing a link that has to be checked for a message link
1005 * @param array $item The item array
1007 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1008 * @throws \ImagickException
1010 private static function fetchGuidSub(array $match, array $item)
1012 if (!self::storeByGuid($match[1], $item['author-link'], true)) {
1013 self::storeByGuid($match[1], $item['owner-link'], true);
1018 * Fetches an item with a given guid from a given server
1020 * @param string $guid the message guid
1021 * @param string $server The server address
1022 * @param bool $force Forced fetch
1024 * @return int|bool the message id of the stored message or false
1025 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1026 * @throws \ImagickException
1028 private static function storeByGuid(string $guid, string $server, bool $force)
1030 $serverparts = parse_url($server);
1032 if (empty($serverparts['host']) || empty($serverparts['scheme'])) {
1036 $server = $serverparts['scheme'] . '://' . $serverparts['host'];
1038 Logger::info('Trying to fetch item ' . $guid . ' from ' . $server);
1040 $msg = self::message($guid, $server);
1046 Logger::info('Successfully fetched item ' . $guid . ' from ' . $server);
1048 // Now call the dispatcher
1049 return self::dispatchPublic($msg, $force ? self::FORCED_FETCH : self::FETCHED);
1053 * Fetches a message from a server
1055 * @param string $guid message guid
1056 * @param string $server The url of the server
1057 * @param int $level Endless loop prevention
1060 * 'message' => The message XML
1061 * 'author' => The author handle
1062 * 'key' => The public key of the author
1063 * @throws \Exception
1065 public static function message(string $guid, string $server, int $level = 0)
1071 // This will work for new Diaspora servers and Friendica servers from 3.5
1072 $source_url = $server . '/fetch/post/' . urlencode($guid);
1074 Logger::info('Fetch post from ' . $source_url);
1076 $envelope = DI::httpClient()->fetch($source_url, HttpClientAccept::MAGIC);
1078 Logger::info('Envelope was fetched.');
1079 $x = self::verifyMagicEnvelope($envelope);
1081 Logger::info('Envelope could not be verified.');
1083 Logger::info('Envelope was verified.');
1093 $source_xml = XML::parseString($x);
1095 if (!is_object($source_xml)) {
1099 if ($source_xml->post->reshare) {
1100 // Reshare of a reshare - old Diaspora version
1101 Logger::info('Message is a reshare');
1102 return self::message($source_xml->post->reshare->root_guid, $server, ++$level);
1103 } elseif ($source_xml->getName() == 'reshare') {
1104 // Reshare of a reshare - new Diaspora version
1105 Logger::info('Message is a new reshare');
1106 return self::message($source_xml->root_guid, $server, ++$level);
1111 // Fetch the author - for the old and the new Diaspora version
1112 if ($source_xml->post->status_message && $source_xml->post->status_message->diaspora_handle) {
1113 $author = (string)$source_xml->post->status_message->diaspora_handle;
1114 } elseif ($source_xml->author && ($source_xml->getName() == 'status_message')) {
1115 $author = (string)$source_xml->author;
1118 // If this isn't a "status_message" then quit
1120 Logger::info("Message doesn't seem to be a status message");
1126 'author' => $author,
1127 'key' => self::key($author)
1132 * Fetches an item with a given URL
1134 * @param string $url the message url
1135 * @param int $uid User id
1137 * @return int|bool the message id of the stored message or false
1138 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1139 * @throws \ImagickException
1141 public static function fetchByURL(string $url, int $uid = 0)
1143 // Check for Diaspora (and Friendica) typical paths
1144 if (!preg_match('=(https?://.+)/(?:posts|display|objects)/([a-zA-Z0-9-_@.:%]+[a-zA-Z0-9])=i', $url, $matches)) {
1145 Logger::info('Invalid url', ['url' => $url]);
1149 $guid = urldecode($matches[2]);
1151 $item = Post::selectFirst(['id'], ['guid' => $guid, 'uid' => $uid]);
1152 if (DBA::isResult($item)) {
1153 Logger::info('Found', ['id' => $item['id']]);
1157 Logger::info('Fetch GUID from origin', ['guid' => $guid, 'server' => $matches[1]]);
1158 $ret = self::storeByGuid($guid, $matches[1], true);
1159 Logger::info('Result', ['ret' => $ret]);
1161 $item = Post::selectFirst(['id'], ['guid' => $guid, 'uid' => $uid]);
1162 if (DBA::isResult($item)) {
1163 Logger::info('Found', ['id' => $item['id']]);
1166 Logger::info('Not found', ['guid' => $guid, 'uid' => $uid]);
1172 * Fetches the item record of a given guid
1174 * @param int $uid The user id
1175 * @param string $guid message guid
1176 * @param string $author The handle of the item
1177 * @param array $contact The contact of the item owner
1179 * @return array|bool the item record or false on failure
1180 * @throws \Exception
1182 private static function parentItem(int $uid, string $guid, string $author, array $contact)
1184 $fields = ['id', 'parent', 'body', 'wall', 'uri', 'guid', 'private', 'origin',
1185 'author-name', 'author-link', 'author-avatar', 'gravity',
1186 'owner-name', 'owner-link', 'owner-avatar'];
1188 $condition = ['uid' => $uid, 'guid' => $guid];
1189 $item = Post::selectFirst($fields, $condition);
1191 if (!DBA::isResult($item)) {
1192 $person = FContact::getByURL($author);
1193 $result = self::storeByGuid($guid, $person['url'], false);
1195 // We don't have an url for items that arrived at the public dispatcher
1196 if (!$result && !empty($contact['url'])) {
1197 $result = self::storeByGuid($guid, $contact['url'], false);
1201 Logger::info('Fetched missing item ' . $guid . ' - result: ' . $result);
1203 $item = Post::selectFirst($fields, $condition);
1207 if (!DBA::isResult($item)) {
1208 Logger::notice('Parent item not found: parent: ' . $guid . ' - user: ' . $uid);
1211 Logger::notice('Parent item found: parent: ' . $guid . ' - user: ' . $uid);
1217 * returns contact details
1219 * @param array $def_contact The default contact if the person isn't found
1220 * @param array $person The record of the person
1221 * @param int $uid The user id
1224 * 'cid' => contact id
1225 * 'network' => network type
1226 * @throws \Exception
1228 private static function authorContactByUrl(array $def_contact, array $person, int $uid): array
1230 $condition = ['nurl' => Strings::normaliseLink($person['url']), 'uid' => $uid];
1231 $contact = DBA::selectFirst('contact', ['id', 'network'], $condition);
1232 if (DBA::isResult($contact)) {
1233 $cid = $contact['id'];
1234 $network = $contact['network'];
1236 $cid = $def_contact['id'];
1237 $network = Protocol::DIASPORA;
1242 'network' => $network
1247 * Is the profile a hubzilla profile?
1249 * @param string $url The profile link
1251 * @return bool is it a hubzilla server?
1253 private static function isHubzilla(string $url): bool
1255 return strstr($url, '/channel/');
1259 * Generate a post link with a given handle and message guid
1261 * @param string $addr The user handle
1262 * @param string $guid message guid
1263 * @param string $parent_guid optional parent guid
1265 * @return string the post link
1266 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1267 * @throws \ImagickException
1269 private static function plink(string $addr, string $guid, string $parent_guid = ''): string
1271 $contact = Contact::getByURL($addr);
1272 if (empty($contact)) {
1273 Logger::info('No contact data for address', ['addr' => $addr]);
1277 if (empty($contact['baseurl'])) {
1278 $contact['baseurl'] = 'https://' . substr($addr, strpos($addr, '@') + 1);
1279 Logger::info('Create baseurl from address', ['baseurl' => $contact['baseurl'], 'url' => $contact['url']]);
1283 $gserver = DBA::selectFirst('gserver', ['platform'], ['nurl' => Strings::normaliseLink($contact['baseurl'])]);
1284 if (!empty($gserver['platform'])) {
1285 $platform = strtolower($gserver['platform']);
1286 Logger::info('Detected platform', ['platform' => $platform, 'url' => $contact['url']]);
1289 if (!in_array($platform, ['diaspora', 'friendica', 'hubzilla', 'socialhome'])) {
1290 if (self::isHubzilla($contact['url'])) {
1291 Logger::info('Detected unknown platform as Hubzilla', ['platform' => $platform, 'url' => $contact['url']]);
1292 $platform = 'hubzilla';
1293 } elseif ($contact['network'] == Protocol::DFRN) {
1294 Logger::info('Detected unknown platform as Friendica', ['platform' => $platform, 'url' => $contact['url']]);
1295 $platform = 'friendica';
1299 if ($platform == 'friendica') {
1300 return str_replace('/profile/' . $contact['nick'] . '/', '/display/' . $guid, $contact['url'] . '/');
1303 if ($platform == 'hubzilla') {
1304 return $contact['baseurl'] . '/item/' . $guid;
1307 if ($platform == 'socialhome') {
1308 return $contact['baseurl'] . '/content/' . $guid;
1311 if ($platform != 'diaspora') {
1312 Logger::info('Unknown platform', ['platform' => $platform, 'url' => $contact['url']]);
1316 if ($parent_guid != '') {
1317 return $contact['baseurl'] . '/posts/' . $parent_guid . '#' . $guid;
1319 return $contact['baseurl'] . '/posts/' . $guid;
1324 * Receives account migration
1326 * @param array $importer Array of the importer user
1327 * @param SimpleXMLElement $data The message object
1329 * @return bool Success
1330 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1331 * @throws \ImagickException
1333 private static function receiveAccountMigration(array $importer, SimpleXMLElement $data): bool
1335 $old_handle = XML::unescape($data->author);
1336 $new_handle = XML::unescape($data->profile->author);
1337 $signature = XML::unescape($data->signature);
1339 $contact = self::contactByHandle($importer['uid'], $old_handle);
1341 Logger::notice('Cannot find contact for sender: ' . $old_handle . ' and user ' . $importer['uid']);
1345 Logger::notice('Got migration for ' . $old_handle . ', to ' . $new_handle . ' with user ' . $importer['uid']);
1348 $signed_text = 'AccountMigration:' . $old_handle . ':' . $new_handle;
1349 $key = self::key($old_handle);
1350 if (!Crypto::rsaVerify($signed_text, $signature, $key, 'sha256')) {
1351 Logger::notice('No valid signature for migration.');
1355 // Update the profile
1356 self::receiveProfile($importer, $data->profile);
1358 // change the technical stuff in contact
1359 $data = Probe::uri($new_handle);
1360 if ($data['network'] == Protocol::PHANTOM) {
1361 Logger::notice("Account for " . $new_handle . " couldn't be probed.");
1366 'url' => $data['url'],
1367 'nurl' => Strings::normaliseLink($data['url']),
1368 'name' => $data['name'],
1369 'nick' => $data['nick'],
1370 'addr' => $data['addr'],
1371 'batch' => $data['batch'],
1372 'notify' => $data['notify'],
1373 'poll' => $data['poll'],
1374 'network' => $data['network'],
1377 Contact::update($fields, ['addr' => $old_handle]);
1379 Logger::notice('Contacts are updated.');
1385 * Processes an account deletion
1387 * @param SimpleXMLElement $data The message object
1389 * @return bool Success
1390 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1392 private static function receiveAccountDeletion(SimpleXMLElement $data): bool
1394 $author = XML::unescape($data->author);
1396 $contacts = DBA::select('contact', ['id'], ['addr' => $author]);
1397 while ($contact = DBA::fetch($contacts)) {
1398 Contact::remove($contact['id']);
1400 DBA::close($contacts);
1402 Logger::notice('Removed contacts for ' . $author);
1408 * Fetch the uri from our database if we already have this item (maybe from ourselves)
1410 * @param string $author Author handle
1411 * @param string $guid Message guid
1412 * @param boolean $onlyfound Only return uri when found in the database
1414 * @return string The constructed uri or the one from our database or empty string on if $onlyfound is true
1415 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1416 * @throws \ImagickException
1418 private static function getUriFromGuid(string $author, string $guid, bool $onlyfound = false): string
1420 $item = Post::selectFirst(['uri'], ['guid' => $guid]);
1421 if (DBA::isResult($item)) {
1422 return $item['uri'];
1423 } elseif (!$onlyfound) {
1424 $person = FContact::getByURL($author);
1426 $parts = parse_url($person['url']);
1427 unset($parts['path']);
1428 $host_url = (string)Uri::fromParts($parts);
1430 return $host_url . '/objects/' . $guid;
1437 * Store the mentions in the tag table
1439 * @param integer $uriid
1440 * @param string $text
1442 private static function storeMentions(int $uriid, string $text)
1444 preg_match_all('/([@!]){(?:([^}]+?); ?)?([^} ]+)}/', $text, $matches, PREG_SET_ORDER);
1445 if (empty($matches)) {
1450 * Matching values for the preg match
1451 * [1] = mention type (@ or !)
1452 * [2] = name (optional)
1456 foreach ($matches as $match) {
1457 if (empty($match)) {
1461 $person = FContact::getByURL($match[3]);
1462 if (empty($person)) {
1466 Tag::storeByHash($uriid, $match[1], $person['name'] ?: $person['nick'], $person['url']);
1471 * Processes an incoming comment
1473 * @param array $importer Array of the importer user
1474 * @param string $sender The sender of the message
1475 * @param SimpleXMLElement $data The message object
1476 * @param string $xml The original XML of the message
1477 * @param int $direction Indicates if the message had been fetched or pushed (self::PUSHED, self::FETCHED, self::FORCED_FETCH)
1479 * @return int The message id of the generated comment or "false" if there was an error
1480 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1481 * @throws \ImagickException
1483 private static function receiveComment(array $importer, string $sender, SimpleXMLElement $data, string $xml, int $direction): bool
1485 $author = XML::unescape($data->author);
1486 $guid = XML::unescape($data->guid);
1487 $parent_guid = XML::unescape($data->parent_guid);
1488 $text = XML::unescape($data->text);
1490 if (isset($data->created_at)) {
1491 $created_at = DateTimeFormat::utc(XML::unescape($data->created_at));
1493 $created_at = DateTimeFormat::utcNow();
1496 if (isset($data->thread_parent_guid)) {
1497 $thread_parent_guid = XML::unescape($data->thread_parent_guid);
1498 $thr_parent = self::getUriFromGuid('', $thread_parent_guid, true);
1503 $contact = self::allowedContactByHandle($importer, $sender, true);
1508 if (!empty($contact['gsid'])) {
1509 GServer::setProtocol($contact['gsid'], Post\DeliveryData::DIASPORA);
1512 $message_id = self::messageExists($importer['uid'], $guid);
1517 $toplevel_parent_item = self::parentItem($importer['uid'], $parent_guid, $author, $contact);
1518 if (!$toplevel_parent_item) {
1522 $person = FContact::getByURL($author);
1523 if (!is_array($person)) {
1524 Logger::notice('Unable to find author details');
1528 // Fetch the contact id - if we know this contact
1529 $author_contact = self::authorContactByUrl($contact, $person, $importer['uid']);
1533 $datarray['uid'] = $importer['uid'];
1534 $datarray['contact-id'] = $author_contact['cid'];
1535 $datarray['network'] = $author_contact['network'];
1537 $datarray['author-link'] = $person['url'];
1538 $datarray['author-id'] = Contact::getIdForURL($person['url'], 0);
1540 $datarray['owner-link'] = $contact['url'];
1541 $datarray['owner-id'] = Contact::getIdForURL($contact['url'], 0);
1543 // Will be overwritten for sharing accounts in Item::insert
1544 $datarray = self::setDirection($datarray, $direction);
1546 $datarray['guid'] = $guid;
1547 $datarray['uri'] = self::getUriFromGuid($author, $guid);
1548 $datarray['uri-id'] = ItemURI::insert(['uri' => $datarray['uri'], 'guid' => $datarray['guid']]);
1550 $datarray['verb'] = Activity::POST;
1551 $datarray['gravity'] = GRAVITY_COMMENT;
1553 $datarray['thr-parent'] = $thr_parent ?: $toplevel_parent_item['uri'];
1555 $datarray['object-type'] = Activity\ObjectType::COMMENT;
1556 $datarray['post-type'] = Item::PT_NOTE;
1558 $datarray['protocol'] = Conversation::PARCEL_DIASPORA;
1559 $datarray['source'] = $xml;
1561 $datarray = self::setDirection($datarray, $direction);
1563 $datarray['changed'] = $datarray['created'] = $datarray['edited'] = $created_at;
1565 $datarray['plink'] = self::plink($author, $guid, $toplevel_parent_item['guid']);
1566 $body = Markdown::toBBCode($text);
1568 $datarray['body'] = self::replacePeopleGuid($body, $person['url']);
1570 self::storeMentions($datarray['uri-id'], $text);
1571 Tag::storeRawTagsFromBody($datarray['uri-id'], $datarray['body']);
1573 self::fetchGuid($datarray);
1575 // If we are the origin of the parent we store the original data.
1576 // We notify our followers during the item storage.
1577 if ($toplevel_parent_item['origin']) {
1578 $datarray['diaspora_signed_text'] = json_encode($data);
1581 if (Item::isTooOld($datarray)) {
1582 Logger::info('Comment is too old', ['created' => $datarray['created'], 'uid' => $datarray['uid'], 'guid' => $datarray['guid']]);
1586 $message_id = Item::insert($datarray);
1588 if ($message_id <= 0) {
1593 Logger::info('Stored comment ' . $datarray['guid'] . ' with message id ' . $message_id);
1594 if ($datarray['uid'] == 0) {
1595 Item::distribute($message_id, json_encode($data));
1603 * processes and stores private messages
1605 * @param array $importer Array of the importer user
1606 * @param array $contact The contact of the message
1607 * @param SimpleXMLElement $data The message object
1608 * @param array $msg Array of the processed message, author handle and key
1609 * @param object $mesg The private message
1610 * @param array $conversation The conversation record to which this message belongs
1612 * @return bool "true" if it was successful
1613 * @throws \Exception
1614 * @todo Find type-hint for $mesg and update documentation
1616 private static function receiveConversationMessage(array $importer, array $contact, SimpleXMLElement $data, array $msg, $mesg, array $conversation): bool
1618 $author = XML::unescape($data->author);
1619 $guid = XML::unescape($data->guid);
1620 $subject = XML::unescape($data->subject);
1622 // "diaspora_handle" is the element name from the old version
1623 // "author" is the element name from the new version
1624 if ($mesg->author) {
1625 $msg_author = XML::unescape($mesg->author);
1626 } elseif ($mesg->diaspora_handle) {
1627 $msg_author = XML::unescape($mesg->diaspora_handle);
1632 $msg_guid = XML::unescape($mesg->guid);
1633 $msg_conversation_guid = XML::unescape($mesg->conversation_guid);
1634 $msg_text = XML::unescape($mesg->text);
1635 $msg_created_at = DateTimeFormat::utc(XML::unescape($mesg->created_at));
1637 if ($msg_conversation_guid != $guid) {
1638 Logger::notice('Message conversation guid does not belong to the current conversation.', ['guid' => $guid]);
1642 $body = Markdown::toBBCode($msg_text);
1643 $message_uri = $msg_author . ':' . $msg_guid;
1645 $person = FContact::getByURL($msg_author);
1647 return Mail::insert([
1648 'uid' => $importer['uid'],
1649 'guid' => $msg_guid,
1650 'convid' => $conversation['id'],
1651 'from-name' => $person['name'],
1652 'from-photo' => $person['photo'],
1653 'from-url' => $person['url'],
1654 'contact-id' => $contact['id'],
1655 'title' => $subject,
1657 'uri' => $message_uri,
1658 'parent-uri' => $author . ':' . $guid,
1659 'created' => $msg_created_at
1664 * Processes new private messages (answers to private messages are processed elsewhere)
1666 * @param array $importer Array of the importer user
1667 * @param array $msg Array of the processed message, author handle and key
1668 * @param SimpleXMLElement $data The message object
1670 * @return bool Success
1671 * @throws \Exception
1673 private static function receiveConversation(array $importer, array $msg, SimpleXMLElement $data)
1675 $author = XML::unescape($data->author);
1676 $guid = XML::unescape($data->guid);
1677 $subject = XML::unescape($data->subject);
1678 $created_at = DateTimeFormat::utc(XML::unescape($data->created_at));
1679 $participants = XML::unescape($data->participants);
1681 $messages = $data->message;
1683 if (!count($messages)) {
1684 Logger::notice('Empty conversation');
1688 $contact = self::allowedContactByHandle($importer, $msg['author'], true);
1693 if (!empty($contact['gsid'])) {
1694 GServer::setProtocol($contact['gsid'], Post\DeliveryData::DIASPORA);
1697 $conversation = DBA::selectFirst('conv', [], ['uid' => $importer['uid'], 'guid' => $guid]);
1698 if (!DBA::isResult($conversation)) {
1699 $r = DBA::insert('conv', [
1700 'uid' => $importer['uid'],
1702 'creator' => $author,
1703 'created' => $created_at,
1704 'updated' => DateTimeFormat::utcNow(),
1705 'subject' => $subject,
1706 'recips' => $participants
1710 $conversation = DBA::selectFirst('conv', [], ['uid' => $importer['uid'], 'guid' => $guid]);
1713 if (!$conversation) {
1714 Logger::warning('Unable to create conversation.');
1718 foreach ($messages as $mesg) {
1719 self::receiveConversationMessage($importer, $contact, $data, $msg, $mesg, $conversation);
1726 * Processes "like" messages
1728 * @param array $importer Array of the importer user
1729 * @param string $sender The sender of the message
1730 * @param SimpleXMLElement $data The message object
1731 * @param int $direction Indicates if the message had been fetched or pushed (self::PUSHED, self::FETCHED, self::FORCED_FETCH)
1733 * @return bool Success or failure
1734 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1735 * @throws \ImagickException
1737 private static function receiveLike(array $importer, string $sender, SimpleXMLElement $data, int $direction): bool
1739 $author = XML::unescape($data->author);
1740 $guid = XML::unescape($data->guid);
1741 $parent_guid = XML::unescape($data->parent_guid);
1742 $parent_type = XML::unescape($data->parent_type);
1743 $positive = XML::unescape($data->positive);
1745 // likes on comments aren't supported by Diaspora - only on posts
1746 // But maybe this will be supported in the future, so we will accept it.
1747 if (!in_array($parent_type, ['Post', 'Comment'])) {
1751 $contact = self::allowedContactByHandle($importer, $sender, true);
1756 if (!empty($contact['gsid'])) {
1757 GServer::setProtocol($contact['gsid'], Post\DeliveryData::DIASPORA);
1760 $message_id = self::messageExists($importer['uid'], $guid);
1765 $toplevel_parent_item = self::parentItem($importer['uid'], $parent_guid, $author, $contact);
1766 if (!$toplevel_parent_item) {
1770 $person = FContact::getByURL($author);
1771 if (!is_array($person)) {
1772 Logger::notice('Unable to find author details');
1776 // Fetch the contact id - if we know this contact
1777 $author_contact = self::authorContactByUrl($contact, $person, $importer['uid']);
1779 // "positive" = "false" would be a Dislike - wich isn't currently supported by Diaspora
1780 // We would accept this anyhow.
1781 if ($positive == 'true') {
1782 $verb = Activity::LIKE;
1784 $verb = Activity::DISLIKE;
1789 $datarray['protocol'] = Conversation::PARCEL_DIASPORA;
1791 $datarray['uid'] = $importer['uid'];
1792 $datarray['contact-id'] = $author_contact['cid'];
1793 $datarray['network'] = $author_contact['network'];
1795 $datarray = self::setDirection($datarray, $direction);
1797 $datarray['owner-link'] = $datarray['author-link'] = $person['url'];
1798 $datarray['owner-id'] = $datarray['author-id'] = Contact::getIdForURL($person['url'], 0);
1800 $datarray['guid'] = $guid;
1801 $datarray['uri'] = self::getUriFromGuid($author, $guid);
1803 $datarray['verb'] = $verb;
1804 $datarray['gravity'] = GRAVITY_ACTIVITY;
1805 $datarray['thr-parent'] = $toplevel_parent_item['uri'];
1807 $datarray['object-type'] = Activity\ObjectType::NOTE;
1809 $datarray['body'] = $verb;
1811 // Diaspora doesn't provide a date for likes
1812 $datarray['changed'] = $datarray['created'] = $datarray['edited'] = DateTimeFormat::utcNow();
1814 // like on comments have the comment as parent. So we need to fetch the toplevel parent
1815 if ($toplevel_parent_item['gravity'] != GRAVITY_PARENT) {
1816 $toplevel = Post::selectFirst(['origin'], ['id' => $toplevel_parent_item['parent']]);
1817 $origin = $toplevel['origin'];
1819 $origin = $toplevel_parent_item['origin'];
1822 // If we are the origin of the parent we store the original data.
1823 // We notify our followers during the item storage.
1825 $datarray['diaspora_signed_text'] = json_encode($data);
1828 if (Item::isTooOld($datarray)) {
1829 Logger::info('Like is too old', ['created' => $datarray['created'], 'uid' => $datarray['uid'], 'guid' => $datarray['guid']]);
1833 $message_id = Item::insert($datarray);
1835 if ($message_id <= 0) {
1840 Logger::info('Stored like ' . $datarray['guid'] . ' with message id ' . $message_id);
1841 if ($datarray['uid'] == 0) {
1842 Item::distribute($message_id, json_encode($data));
1850 * Processes private messages
1852 * @param array $importer Array of the importer user
1853 * @param SimpleXMLElement $data The message object
1855 * @return bool Success?
1856 * @throws \Exception
1858 private static function receiveMessage(array $importer, SimpleXMLElement $data): bool
1860 $author = XML::unescape($data->author);
1861 $guid = XML::unescape($data->guid);
1862 $conversation_guid = XML::unescape($data->conversation_guid);
1863 $text = XML::unescape($data->text);
1864 $created_at = DateTimeFormat::utc(XML::unescape($data->created_at));
1866 $contact = self::allowedContactByHandle($importer, $author, true);
1871 if (!empty($contact['gsid'])) {
1872 GServer::setProtocol($contact['gsid'], Post\DeliveryData::DIASPORA);
1875 $conversation = null;
1877 $condition = ['uid' => $importer['uid'], 'guid' => $conversation_guid];
1878 $conversation = DBA::selectFirst('conv', [], $condition);
1880 if (!DBA::isResult($conversation)) {
1881 Logger::notice('Conversation not available.');
1885 $message_uri = $author . ':' . $guid;
1887 $person = FContact::getByURL($author);
1889 Logger::notice('Unable to find author details');
1893 $body = Markdown::toBBCode($text);
1895 $body = self::replacePeopleGuid($body, $person['url']);
1897 return Mail::insert([
1898 'uid' => $importer['uid'],
1900 'convid' => $conversation['id'],
1901 'from-name' => $person['name'],
1902 'from-photo' => $person['photo'],
1903 'from-url' => $person['url'],
1904 'contact-id' => $contact['id'],
1905 'title' => $conversation['subject'],
1908 'uri' => $message_uri,
1909 'parent-uri' => $author . ':' . $conversation['guid'],
1910 'created' => $created_at
1915 * Processes participations - unsupported by now
1917 * @param array $importer Array of the importer user
1918 * @param SimpleXMLElement $data The message object
1919 * @param int $direction Indicates if the message had been fetched or pushed (self::PUSHED, self::FETCHED, self::FORCED_FETCH)
1921 * @return bool success
1922 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1923 * @throws \ImagickException
1925 private static function receiveParticipation(array $importer, SimpleXMLElement $data, int $direction): bool
1927 $author = strtolower(XML::unescape($data->author));
1928 $guid = XML::unescape($data->guid);
1929 $parent_guid = XML::unescape($data->parent_guid);
1931 $contact = self::allowedContactByHandle($importer, $author, true);
1936 if (!empty($contact['gsid'])) {
1937 GServer::setProtocol($contact['gsid'], Post\DeliveryData::DIASPORA);
1940 if (self::messageExists($importer['uid'], $guid)) {
1944 $toplevel_parent_item = self::parentItem($importer['uid'], $parent_guid, $author, $contact);
1945 if (!$toplevel_parent_item) {
1949 if (!$toplevel_parent_item['origin']) {
1950 Logger::info('Not our origin. Participation is ignored', ['parent_guid' => $parent_guid, 'guid' => $guid, 'author' => $author]);
1953 if (!in_array($toplevel_parent_item['private'], [Item::PUBLIC, Item::UNLISTED])) {
1954 Logger::info('Item is not public, participation is ignored', ['parent_guid' => $parent_guid, 'guid' => $guid, 'author' => $author]);
1958 $person = FContact::getByURL($author);
1959 if (!is_array($person)) {
1960 Logger::notice('Person not found: ' . $author);
1964 $author_contact = self::authorContactByUrl($contact, $person, $importer['uid']);
1966 // Store participation
1969 $datarray['protocol'] = Conversation::PARCEL_DIASPORA;
1971 $datarray['uid'] = $importer['uid'];
1972 $datarray['contact-id'] = $author_contact['cid'];
1973 $datarray['network'] = $author_contact['network'];
1975 $datarray = self::setDirection($datarray, $direction);
1977 $datarray['owner-link'] = $datarray['author-link'] = $person['url'];
1978 $datarray['owner-id'] = $datarray['author-id'] = Contact::getIdForURL($person['url'], 0);
1980 $datarray['guid'] = $guid;
1981 $datarray['uri'] = self::getUriFromGuid($author, $guid);
1983 $datarray['verb'] = Activity::FOLLOW;
1984 $datarray['gravity'] = GRAVITY_ACTIVITY;
1985 $datarray['thr-parent'] = $toplevel_parent_item['uri'];
1987 $datarray['object-type'] = Activity\ObjectType::NOTE;
1989 $datarray['body'] = Activity::FOLLOW;
1991 // Diaspora doesn't provide a date for a participation
1992 $datarray['changed'] = $datarray['created'] = $datarray['edited'] = DateTimeFormat::utcNow();
1994 if (Item::isTooOld($datarray)) {
1995 Logger::info('Participation is too old', ['created' => $datarray['created'], 'uid' => $datarray['uid'], 'guid' => $datarray['guid']]);
1999 $message_id = Item::insert($datarray);
2001 Logger::info('Participation stored', ['id' => $message_id, 'guid' => $guid, 'parent_guid' => $parent_guid, 'author' => $author]);
2003 // Send all existing comments and likes to the requesting server
2004 $comments = Post::select(['id', 'uri-id', 'parent-author-network', 'author-network', 'verb'],
2005 ['parent' => $toplevel_parent_item['id'], 'gravity' => [GRAVITY_COMMENT, GRAVITY_ACTIVITY]]);
2006 while ($comment = Post::fetch($comments)) {
2007 if (in_array($comment['verb'], [Activity::FOLLOW, Activity::TAG])) {
2008 Logger::info('participation messages are not relayed', ['item' => $comment['id']]);
2012 if ($comment['author-network'] == Protocol::ACTIVITYPUB) {
2013 Logger::info('Comments from ActivityPub authors are not relayed', ['item' => $comment['id']]);
2017 if ($comment['parent-author-network'] == Protocol::ACTIVITYPUB) {
2018 Logger::info('Comments to comments from ActivityPub authors are not relayed', ['item' => $comment['id']]);
2022 Logger::info('Deliver participation', ['item' => $comment['id'], 'contact' => $author_contact['cid']]);
2023 if (Worker::add(PRIORITY_HIGH, 'Delivery', Delivery::POST, $comment['id'], $author_contact['cid'])) {
2024 Post\DeliveryData::incrementQueueCount($comment['uri-id'], 1);
2027 DBA::close($comments);
2033 * Processes photos - unneeded
2035 * @param array $importer Array of the importer user
2036 * @param SimpleXMLElement $data The message object
2038 * @return bool always true
2040 private static function receivePhoto(array $importer, $data)
2042 // There doesn't seem to be a reason for this function,
2043 // since the photo data is transmitted in the status message as well
2048 * Processes poll participations - unssupported
2050 * @param array $importer Array of the importer user
2051 * @param object $data The message object
2053 * @return bool always true
2055 private static function receivePollParticipation(array $importer, $data)
2057 // We don't support polls by now
2062 * Processes incoming profile updates
2064 * @param array $importer Array of the importer user
2065 * @param SimpleXMLElement $data The message object
2067 * @return bool Success
2068 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2069 * @throws \ImagickException
2071 private static function receiveProfile(array $importer, SimpleXMLElement $data): bool
2073 $author = strtolower(XML::unescape($data->author));
2075 $contact = self::contactByHandle($importer['uid'], $author);
2080 $name = XML::unescape($data->first_name).((strlen($data->last_name)) ? ' ' . XML::unescape($data->last_name) : '');
2081 $image_url = XML::unescape($data->image_url);
2082 $birthday = XML::unescape($data->birthday);
2083 $about = Markdown::toBBCode(XML::unescape($data->bio));
2084 $location = Markdown::toBBCode(XML::unescape($data->location));
2085 $searchable = (XML::unescape($data->searchable) == 'true');
2086 $nsfw = (XML::unescape($data->nsfw) == 'true');
2087 $tags = XML::unescape($data->tag_string);
2089 $tags = explode('#', $tags);
2092 foreach ($tags as $tag) {
2093 $tag = trim(strtolower($tag));
2099 $keywords = implode(', ', $keywords);
2101 $handle_parts = explode('@', $author);
2102 $nick = $handle_parts[0];
2105 $name = $handle_parts[0];
2108 if (preg_match('|^https?://|', $image_url) === 0) {
2109 // @TODO No HTTPS here?
2110 $image_url = 'http://' . $handle_parts[1] . $image_url;
2113 Contact::updateAvatar($contact['id'], $image_url);
2115 // Generic birthday. We don't know the timezone. The year is irrelevant.
2117 $birthday = str_replace('1000', '1901', $birthday);
2119 if ($birthday != '') {
2120 $birthday = DateTimeFormat::utc($birthday, 'Y-m-d');
2123 // this is to prevent multiple birthday notifications in a single year
2124 // if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
2126 if (substr($birthday, 5) === substr($contact['bd'], 5)) {
2127 $birthday = $contact['bd'];
2130 $fields = ['name' => $name, 'location' => $location,
2131 'name-date' => DateTimeFormat::utcNow(), 'about' => $about,
2132 'addr' => $author, 'nick' => $nick, 'keywords' => $keywords,
2133 'unsearchable' => !$searchable, 'sensitive' => $nsfw];
2135 if (!empty($birthday)) {
2136 $fields['bd'] = $birthday;
2139 Contact::update($fields, ['id' => $contact['id']]);
2141 Logger::info('Profile of contact ' . $contact['id'] . ' stored for user ' . $importer['uid']);
2147 * Processes incoming friend requests
2149 * @param array $importer Array of the importer user
2150 * @param array $contact The contact that send the request
2152 * @throws \Exception
2154 private static function receiveRequestMakeFriend(array $importer, array $contact)
2156 if ($contact['rel'] == Contact::SHARING) {
2158 ['rel' => Contact::FRIEND, 'writable' => true],
2159 ['id' => $contact['id'], 'uid' => $importer['uid']]
2165 * Processes incoming sharing notification
2167 * @param array $importer Array of the importer user
2168 * @param SimpleXMLElement $data The message object
2170 * @return bool Success
2171 * @throws \Exception
2173 private static function receiveContactRequest(array $importer, SimpleXMLElement $data): bool
2175 $author = XML::unescape($data->author);
2176 $recipient = XML::unescape($data->recipient);
2178 if (!$author || !$recipient) {
2182 // the current protocol version doesn't know these fields
2183 // That means that we will assume their existance
2184 if (isset($data->following)) {
2185 $following = (XML::unescape($data->following) == 'true');
2190 if (isset($data->sharing)) {
2191 $sharing = (XML::unescape($data->sharing) == 'true');
2196 $contact = self::contactByHandle($importer['uid'], $author);
2198 // perhaps we were already sharing with this person. Now they're sharing with us.
2199 // That makes us friends.
2202 Logger::info('Author ' . $author . ' (Contact ' . $contact['id'] . ') wants to follow us.');
2203 self::receiveRequestMakeFriend($importer, $contact);
2205 // refetch the contact array
2206 $contact = self::contactByHandle($importer['uid'], $author);
2208 // If we are now friends, we are sending a share message.
2209 // Normally we needn't to do so, but the first message could have been vanished.
2210 if (in_array($contact['rel'], [Contact::FRIEND])) {
2211 $user = DBA::selectFirst('user', [], ['uid' => $importer['uid']]);
2212 if (DBA::isResult($user)) {
2213 Logger::info('Sending share message to author ' . $author . ' - Contact: ' . $contact['id'] . ' - User: ' . $importer['uid']);
2214 self::sendShare($user, $contact);
2219 Logger::info("Author " . $author . " doesn't want to follow us anymore.");
2220 Contact::removeFollower($contact);
2225 if (!$following && $sharing && in_array($importer['page-flags'], [User::PAGE_FLAGS_SOAPBOX, User::PAGE_FLAGS_NORMAL])) {
2226 Logger::info("Author " . $author . " wants to share with us - but doesn't want to listen. Request is ignored.");
2228 } elseif (!$following && !$sharing) {
2229 Logger::info("Author " . $author . " doesn't want anything - and we don't know the author. Request is ignored.");
2231 } elseif (!$following && $sharing) {
2232 Logger::info("Author " . $author . " wants to share with us.");
2233 } elseif ($following && $sharing) {
2234 Logger::info("Author " . $author . " wants to have a bidirectional conection.");
2235 } elseif ($following && !$sharing) {
2236 Logger::info("Author " . $author . " wants to listen to us.");
2239 $ret = FContact::getByURL($author);
2241 if (!$ret || ($ret['network'] != Protocol::DIASPORA)) {
2242 Logger::notice("Cannot resolve diaspora handle " . $author . " for ".$recipient);
2246 $cid = Contact::getIdForURL($ret['url'], $importer['uid']);
2248 $contact = DBA::selectFirst('contact', [], ['id' => $cid, 'network' => Protocol::NATIVE_SUPPORT]);
2253 $item = ['author-id' => Contact::getIdForURL($ret['url']),
2254 'author-link' => $ret['url']];
2256 $result = Contact::addRelationship($importer, $contact, $item, false);
2257 if ($result === true) {
2258 $contact_record = self::contactByHandle($importer['uid'], $author);
2259 if (!$contact_record) {
2260 Logger::info('unable to locate newly created contact record.');
2264 $user = DBA::selectFirst('user', [], ['uid' => $importer['uid']]);
2265 if (DBA::isResult($user)) {
2266 self::sendShare($user, $contact_record);
2268 // Send the profile data, maybe it weren't transmitted before
2269 self::sendProfile($importer['uid'], [$contact_record]);
2277 * Fetches a message with a given guid
2279 * @param string $guid message guid
2280 * @param string $orig_author handle of the original post
2281 * @return array|bool The fetched item or false on failure
2282 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2283 * @throws \ImagickException
2285 public static function originalItem(string $guid, string $orig_author)
2288 Logger::notice('Empty guid. Quitting.');
2292 // Do we already have this item?
2293 $fields = ['body', 'title', 'app', 'created', 'object-type', 'uri', 'guid',
2294 'author-name', 'author-link', 'author-avatar', 'plink', 'uri-id'];
2295 $condition = ['guid' => $guid, 'visible' => true, 'deleted' => false, 'private' => [Item::PUBLIC, Item::UNLISTED]];
2296 $item = Post::selectFirst($fields, $condition);
2298 if (DBA::isResult($item)) {
2299 Logger::notice("reshared message " . $guid . " already exists on system.");
2301 // Maybe it is already a reshared item?
2302 // Then refetch the content, if it is a reshare from a reshare.
2303 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2304 if (self::isReshare($item['body'], true)) {
2306 } elseif (self::isReshare($item['body'], false) || strstr($item['body'], '[share')) {
2307 $item['body'] = Markdown::toBBCode(BBCode::toMarkdown($item['body']));
2309 $item['body'] = self::replacePeopleGuid($item['body'], $item['author-link']);
2317 if (!DBA::isResult($item)) {
2318 if (empty($orig_author)) {
2319 Logger::notice('Empty author for guid ' . $guid . '. Quitting.');
2323 $server = 'https://' . substr($orig_author, strpos($orig_author, '@') + 1);
2324 Logger::notice('1st try: reshared message ' . $guid . ' will be fetched via SSL from the server ' . $server);
2325 $stored = self::storeByGuid($guid, $server, true);
2328 $server = 'http://' . substr($orig_author, strpos($orig_author, '@') + 1);
2329 Logger::notice('2nd try: reshared message ' . $guid . ' will be fetched without SSL from the server ' . $server);
2330 $stored = self::storeByGuid($guid, $server, true);
2334 $fields = ['body', 'title', 'app', 'created', 'object-type', 'uri', 'guid',
2335 'author-name', 'author-link', 'author-avatar', 'plink', 'uri-id'];
2336 $condition = ['guid' => $guid, 'visible' => true, 'deleted' => false, 'private' => [Item::PUBLIC, Item::UNLISTED]];
2337 $item = Post::selectFirst($fields, $condition);
2339 if (DBA::isResult($item)) {
2340 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2341 if (self::isReshare($item['body'], false)) {
2342 $item['body'] = Markdown::toBBCode(BBCode::toMarkdown($item['body']));
2343 $item['body'] = self::replacePeopleGuid($item['body'], $item['author-link']);
2354 * Stores a reshare activity
2356 * @param array $item Array of reshare post
2357 * @param integer $parent_message_id Id of the parent post
2358 * @param string $guid GUID string of reshare action
2359 * @param string $author Author handle
2361 private static function addReshareActivity(array $item, int $parent_message_id, string $guid, string $author)
2363 $parent = Post::selectFirst(['uri', 'guid'], ['id' => $parent_message_id]);
2367 $datarray['uid'] = $item['uid'];
2368 $datarray['contact-id'] = $item['contact-id'];
2369 $datarray['network'] = $item['network'];
2371 $datarray['author-link'] = $item['author-link'];
2372 $datarray['author-id'] = $item['author-id'];
2374 $datarray['owner-link'] = $datarray['author-link'];
2375 $datarray['owner-id'] = $datarray['author-id'];
2377 $datarray['guid'] = $parent['guid'] . '-' . $guid;
2378 $datarray['uri'] = self::getUriFromGuid($author, $datarray['guid']);
2379 $datarray['thr-parent'] = $parent['uri'];
2381 $datarray['verb'] = $datarray['body'] = Activity::ANNOUNCE;
2382 $datarray['gravity'] = GRAVITY_ACTIVITY;
2383 $datarray['object-type'] = Activity\ObjectType::NOTE;
2385 $datarray['protocol'] = $item['protocol'];
2386 $datarray['source'] = $item['source'];
2387 $datarray['direction'] = $item['direction'];
2388 $datarray['post-reason'] = $item['post-reason'];
2390 $datarray['plink'] = self::plink($author, $datarray['guid']);
2391 $datarray['private'] = $item['private'];
2392 $datarray['changed'] = $datarray['created'] = $datarray['edited'] = $item['created'];
2394 if (Item::isTooOld($datarray)) {
2395 Logger::info('Reshare activity is too old', ['created' => $datarray['created'], 'uid' => $datarray['uid'], 'guid' => $datarray['guid']]);
2399 $message_id = Item::insert($datarray);
2402 Logger::info('Stored reshare activity.', ['guid' => $guid, 'id' => $message_id]);
2403 if ($datarray['uid'] == 0) {
2404 Item::distribute($message_id);
2410 * Processes a reshare message
2412 * @param array $importer Array of the importer user
2413 * @param SimpleXMLElement $data The message object
2414 * @param string $xml The original XML of the message
2415 * @param int $direction Indicates if the message had been fetched or pushed (self::PUSHED, self::FETCHED, self::FORCED_FETCH)
2417 * @return bool Success or failure
2418 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2419 * @throws \ImagickException
2421 private static function receiveReshare(array $importer, SimpleXMLElement $data, string $xml, int $direction): bool
2423 $author = XML::unescape($data->author);
2424 $guid = XML::unescape($data->guid);
2425 $created_at = DateTimeFormat::utc(XML::unescape($data->created_at));
2426 $root_author = XML::unescape($data->root_author);
2427 $root_guid = XML::unescape($data->root_guid);
2428 /// @todo handle unprocessed property "provider_display_name"
2429 $public = XML::unescape($data->public);
2431 $contact = self::allowedContactByHandle($importer, $author, false);
2436 if (!empty($contact['gsid'])) {
2437 GServer::setProtocol($contact['gsid'], Post\DeliveryData::DIASPORA);
2440 $message_id = self::messageExists($importer['uid'], $guid);
2445 $original_item = self::originalItem($root_guid, $root_author);
2446 if (!$original_item) {
2450 if (empty($original_item['plink'])) {
2451 $original_item['plink'] = self::plink($root_author, $root_guid);
2456 $datarray['uid'] = $importer['uid'];
2457 $datarray['contact-id'] = $contact['id'];
2458 $datarray['network'] = Protocol::DIASPORA;
2460 $datarray['author-link'] = $contact['url'];
2461 $datarray['author-id'] = Contact::getIdForURL($contact['url'], 0);
2463 $datarray['owner-link'] = $datarray['author-link'];
2464 $datarray['owner-id'] = $datarray['author-id'];
2466 $datarray['guid'] = $guid;
2467 $datarray['uri'] = $datarray['thr-parent'] = self::getUriFromGuid($author, $guid);
2468 $datarray['uri-id'] = ItemURI::insert(['uri' => $datarray['uri'], 'guid' => $datarray['guid']]);
2470 $datarray['verb'] = Activity::POST;
2471 $datarray['gravity'] = GRAVITY_PARENT;
2473 $datarray['protocol'] = Conversation::PARCEL_DIASPORA;
2474 $datarray['source'] = $xml;
2476 $datarray = self::setDirection($datarray, $direction);
2478 /// @todo Copy tag data from original post
2480 $prefix = BBCode::getShareOpeningTag(
2481 $original_item['author-name'],
2482 $original_item['author-link'],
2483 $original_item['author-avatar'],
2484 $original_item['plink'],
2485 $original_item['created'],
2486 $original_item['guid']
2489 if (!empty($original_item['title'])) {
2490 $prefix .= '[h3]' . $original_item['title'] . "[/h3]\n";
2493 $datarray['body'] = $prefix.$original_item['body'] . '[/share]';
2495 Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
2497 $datarray['app'] = $original_item['app'];
2499 $datarray['plink'] = self::plink($author, $guid);
2500 $datarray['private'] = (($public == 'false') ? Item::PRIVATE : Item::PUBLIC);
2501 $datarray['changed'] = $datarray['created'] = $datarray['edited'] = $created_at;
2503 $datarray['object-type'] = $original_item['object-type'];
2505 self::fetchGuid($datarray);
2507 if (Item::isTooOld($datarray)) {
2508 Logger::info('Reshare is too old', ['created' => $datarray['created'], 'uid' => $datarray['uid'], 'guid' => $datarray['guid']]);
2512 $message_id = Item::insert($datarray);
2514 self::sendParticipation($contact, $datarray);
2516 $root_message_id = self::messageExists($importer['uid'], $root_guid);
2517 if ($root_message_id) {
2518 self::addReshareActivity($datarray, $root_message_id, $guid, $author);
2522 Logger::info('Stored reshare ' . $datarray['guid'] . ' with message id ' . $message_id);
2523 if ($datarray['uid'] == 0) {
2524 Item::distribute($message_id);
2533 * Processes retractions
2535 * @param array $importer Array of the importer user
2536 * @param array $contact The contact of the item owner
2537 * @param SimpleXMLElement $data The message object
2539 * @return bool success
2540 * @throws \Exception
2542 private static function itemRetraction(array $importer, array $contact, SimpleXMLElement $data): bool
2544 $author = XML::unescape($data->author);
2545 $target_guid = XML::unescape($data->target_guid);
2546 $target_type = XML::unescape($data->target_type);
2548 $person = FContact::getByURL($author);
2549 if (!is_array($person)) {
2550 Logger::notice('Unable to find author detail for ' . $author);
2554 if (empty($contact['url'])) {
2555 $contact['url'] = $person['url'];
2558 // Fetch items that are about to be deleted
2559 $fields = ['uid', 'id', 'parent', 'author-link', 'uri-id'];
2561 // When we receive a public retraction, we delete every item that we find.
2562 if ($importer['uid'] == 0) {
2563 $condition = ['guid' => $target_guid, 'deleted' => false];
2565 $condition = ['guid' => $target_guid, 'deleted' => false, 'uid' => $importer['uid']];
2568 $r = Post::select($fields, $condition);
2569 if (!DBA::isResult($r)) {
2570 Logger::notice('Target guid ' . $target_guid . ' was not found on this system for user ' . $importer['uid'] . '.');
2574 while ($item = Post::fetch($r)) {
2575 if (DBA::exists('post-category', ['uri-id' => $item['uri-id'], 'uid' => $item['uid'], 'type' => Post\Category::FILE])) {
2576 Logger::info("Target guid " . $target_guid . " for user " . $item['uid'] . " is filed. So it won't be deleted.");
2580 // Fetch the parent item
2581 $parent = Post::selectFirst(['author-link'], ['id' => $item['parent']]);
2583 // Only delete it if the parent author really fits
2584 if (!Strings::compareLink($parent['author-link'], $contact['url']) && !Strings::compareLink($item['author-link'], $contact['url'])) {
2585 Logger::info("Thread author " . $parent['author-link'] . " and item author " . $item['author-link'] . " don't fit to expected contact " . $contact['url']);
2589 Item::markForDeletion(['id' => $item['id']]);
2591 Logger::info('Deleted target ' . $target_guid . ' (' . $item['id'] . ') from user ' . $item['uid'] . ' parent: ' . $item['parent']);
2599 * Receives retraction messages
2601 * @param array $importer Array of the importer user
2602 * @param string $sender The sender of the message
2603 * @param SimpleXMLElement $data The message object
2605 * @return bool Success
2606 * @throws \Exception
2608 private static function receiveRetraction(array $importer, string $sender, SimpleXMLElement $data)
2610 $target_type = XML::unescape($data->target_type);
2612 $contact = self::contactByHandle($importer['uid'], $sender);
2613 if (!$contact && (in_array($target_type, ['Contact', 'Person']))) {
2614 Logger::notice('Cannot find contact for sender: ' . $sender . ' and user ' . $importer['uid']);
2622 Logger::info('Got retraction for ' . $target_type . ', sender ' . $sender . ' and user ' . $importer['uid']);
2624 switch ($target_type) {
2629 case 'StatusMessage':
2630 return self::itemRetraction($importer, $contact, $data);
2632 case 'PollParticipation':
2634 // Currently unsupported
2638 Logger::notice('Unknown target type ' . $target_type);
2645 * Checks if an incoming message is wanted
2647 * @param array $item
2648 * @param string $author
2649 * @param string $body
2650 * @param int $direction Indicates if the message had been fetched or pushed (self::PUSHED, self::FETCHED, self::FORCED_FETCH)
2652 * @return boolean Is the message wanted?
2654 private static function isSolicitedMessage(array $item, string $author, string $body, int $direction): bool
2656 $contact = Contact::getByURL($author);
2657 if (DBA::exists('contact', ['`nurl` = ? AND `uid` != ? AND `rel` IN (?, ?)', $contact['nurl'], 0, Contact::FRIEND, Contact::SHARING])) {
2658 Logger::debug('Author has got followers - accepted', ['uri-id' => $item['uri-id'], 'guid' => $item['guid'], 'url' => $item['uri'], 'author' => $author]);
2662 if ($direction == self::FORCED_FETCH) {
2663 Logger::debug('Post is a forced fetch - accepted', ['uri-id' => $item['uri-id'], 'guid' => $item['guid'], 'url' => $item['uri'], 'author' => $author]);
2667 $tags = array_column(Tag::getByURIId($item['uri-id'], [Tag::HASHTAG]), 'name');
2668 if (Relay::isSolicitedPost($tags, $body, $contact['id'], $item['uri'], Protocol::DIASPORA)) {
2669 Logger::debug('Post is accepted because of the relay settings', ['uri-id' => $item['uri-id'], 'guid' => $item['guid'], 'url' => $item['uri'], 'author' => $author]);
2677 * Store an attached photo in the post-media table
2680 * @param object $photo
2683 private static function storePhotoAsMedia(int $uriid, $photo)
2685 // @TODO Need to find object type, roland@f.haeder.net
2686 Logger::debug('photo='.get_class($photo));
2688 $data['uri-id'] = $uriid;
2689 $data['type'] = Post\Media::IMAGE;
2690 $data['url'] = XML::unescape($photo->remote_photo_path) . XML::unescape($photo->remote_photo_name);
2691 $data['height'] = (int)XML::unescape($photo->height ?? 0);
2692 $data['width'] = (int)XML::unescape($photo->width ?? 0);
2693 $data['description'] = XML::unescape($photo->text ?? '');
2695 Post\Media::insert($data);
2699 * Set direction and post reason
2701 * @param array $datarray
2702 * @param integer $direction
2706 public static function setDirection(array $datarray, int $direction): array
2708 $datarray['direction'] = in_array($direction, [self::FETCHED, self::FORCED_FETCH]) ? Conversation::PULL : Conversation::PUSH;
2710 if (in_array($direction, [self::FETCHED, self::FORCED_FETCH])) {
2711 $datarray['post-reason'] = Item::PR_FETCHED;
2712 } elseif ($datarray['uid'] == 0) {
2713 $datarray['post-reason'] = Item::PR_GLOBAL;
2715 $datarray['post-reason'] = Item::PR_PUSHED;
2722 * Receives status messages
2724 * @param array $importer Array of the importer user
2725 * @param SimpleXMLElement $data The message object
2726 * @param string $xml The original XML of the message
2727 * @param int $direction Indicates if the message had been fetched or pushed (self::PUSHED, self::FETCHED, self::FORCED_FETCH)
2729 * @return int|bool The message id of the newly created item or false on error
2730 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2731 * @throws \ImagickException
2733 private static function receiveStatusMessage(array $importer, SimpleXMLElement $data, string $xml, int $direction)
2735 $author = XML::unescape($data->author);
2736 $guid = XML::unescape($data->guid);
2737 $created_at = DateTimeFormat::utc(XML::unescape($data->created_at));
2738 $public = XML::unescape($data->public);
2739 $text = XML::unescape($data->text);
2740 $provider_display_name = XML::unescape($data->provider_display_name);
2742 $contact = self::allowedContactByHandle($importer, $author, false);
2747 if (!empty($contact['gsid'])) {
2748 GServer::setProtocol($contact['gsid'], Post\DeliveryData::DIASPORA);
2751 $message_id = self::messageExists($importer['uid'], $guid);
2757 if ($data->location) {
2758 foreach ($data->location->children() as $fieldname => $data) {
2759 $address[$fieldname] = XML::unescape($data);
2763 $raw_body = $body = Markdown::toBBCode($text);
2767 $datarray['guid'] = $guid;
2768 $datarray['uri'] = $datarray['thr-parent'] = self::getUriFromGuid($author, $guid);
2769 $datarray['uri-id'] = ItemURI::insert(['uri' => $datarray['uri'], 'guid' => $datarray['guid']]);
2771 // Attach embedded pictures to the body
2773 foreach ($data->photo as $photo) {
2774 self::storePhotoAsMedia($datarray['uri-id'], $photo);
2777 $datarray['object-type'] = Activity\ObjectType::IMAGE;
2778 $datarray['post-type'] = Item::PT_IMAGE;
2779 } elseif ($data->poll) {
2780 $datarray['object-type'] = Activity\ObjectType::NOTE;
2781 $datarray['post-type'] = Item::PT_POLL;
2783 $datarray['object-type'] = Activity\ObjectType::NOTE;
2784 $datarray['post-type'] = Item::PT_NOTE;
2787 /// @todo enable support for polls
2788 //if ($data->poll) {
2789 // foreach ($data->poll as $poll)
2794 /// @todo enable support for events
2796 $datarray['uid'] = $importer['uid'];
2797 $datarray['contact-id'] = $contact['id'];
2798 $datarray['network'] = Protocol::DIASPORA;
2800 $datarray['author-link'] = $contact['url'];
2801 $datarray['author-id'] = Contact::getIdForURL($contact['url'], 0);
2803 $datarray['owner-link'] = $datarray['author-link'];
2804 $datarray['owner-id'] = $datarray['author-id'];
2806 $datarray['verb'] = Activity::POST;
2807 $datarray['gravity'] = GRAVITY_PARENT;
2809 $datarray['protocol'] = Conversation::PARCEL_DIASPORA;
2810 $datarray['source'] = $xml;
2812 $datarray = self::setDirection($datarray, $direction);
2814 $datarray['body'] = self::replacePeopleGuid($body, $contact['url']);
2815 $datarray['raw-body'] = self::replacePeopleGuid($raw_body, $contact['url']);
2817 self::storeMentions($datarray['uri-id'], $text);
2818 Tag::storeRawTagsFromBody($datarray['uri-id'], $datarray['body']);
2820 if (!self::isSolicitedMessage($datarray, $author, $body, $direction)) {
2821 DBA::delete('item-uri', ['uri' => $datarray['uri']]);
2825 if ($provider_display_name != '') {
2826 $datarray['app'] = $provider_display_name;
2829 $datarray['plink'] = self::plink($author, $guid);
2830 $datarray['private'] = (($public == 'false') ? Item::PRIVATE : Item::PUBLIC);
2831 $datarray['changed'] = $datarray['created'] = $datarray['edited'] = $created_at;
2833 if (isset($address['address'])) {
2834 $datarray['location'] = $address['address'];
2837 if (isset($address['lat']) && isset($address['lng'])) {
2838 $datarray['coord'] = $address['lat'] . ' ' . $address['lng'];
2841 self::fetchGuid($datarray);
2843 if (Item::isTooOld($datarray)) {
2844 Logger::info('Status is too old', ['created' => $datarray['created'], 'uid' => $datarray['uid'], 'guid' => $datarray['guid']]);
2848 $message_id = Item::insert($datarray);
2850 self::sendParticipation($contact, $datarray);
2853 Logger::info('Stored item ' . $datarray['guid'] . ' with message id ' . $message_id);
2854 if ($datarray['uid'] == 0) {
2855 Item::distribute($message_id);
2863 /* ************************************************************************************** *
2864 * Here are all the functions that are needed to transmit data with the Diaspora protocol *
2865 * ************************************************************************************** */
2868 * returnes the handle of a contact
2870 * @param array $contact contact array
2872 * @return string the handle in the format user@domain.tld
2873 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2875 private static function myHandle(array $contact): string
2877 if (!empty($contact['addr'])) {
2878 return $contact['addr'];
2881 // Normally we should have a filled "addr" field - but in the past this wasn't the case
2882 // So - just in case - we build the the address here.
2883 if ($contact['nickname'] != '') {
2884 $nick = $contact['nickname'];
2886 $nick = $contact['nick'];
2889 return $nick . '@' . substr(DI::baseUrl(), strpos(DI::baseUrl(), '://') + 3);
2894 * Creates the data for a private message in the new format
2896 * @param string $msg The message that is to be transmitted
2897 * @param array $user The record of the sender
2898 * @param array $contact Target of the communication
2899 * @param string $prvkey The private key of the sender
2900 * @param string $pubkey The public key of the receiver
2902 * @return string The encrypted data
2903 * @throws \Exception
2905 public static function encodePrivateData(string $msg, array $user, array $contact, string $prvkey, string $pubkey): string
2907 Logger::debug('Message: ' . $msg);
2909 // without a public key nothing will work
2911 Logger::notice('pubkey missing: contact id: ' . $contact['id']);
2915 $aes_key = random_bytes(32);
2916 $b_aes_key = base64_encode($aes_key);
2917 $iv = random_bytes(16);
2918 $b_iv = base64_encode($iv);
2920 $ciphertext = self::aesEncrypt($aes_key, $iv, $msg);
2922 $json = json_encode(['iv' => $b_iv, 'key' => $b_aes_key]);
2924 $encrypted_key_bundle = '';
2925 if (!@openssl_public_encrypt($json, $encrypted_key_bundle, $pubkey)) {
2929 $json_object = json_encode(
2931 'aes_key' => base64_encode($encrypted_key_bundle),
2932 'encrypted_magic_envelope' => base64_encode($ciphertext)
2936 return $json_object;
2940 * Creates the envelope for the "fetch" endpoint and for the new format
2942 * @param string $msg The message that is to be transmitted
2943 * @param array $user The record of the sender
2945 * @return string The envelope
2946 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2948 public static function buildMagicEnvelope(string $msg, array $user): string
2950 $b64url_data = Strings::base64UrlEncode($msg);
2951 $data = str_replace(["\n", "\r", " ", "\t"], ['', '', '', ''], $b64url_data);
2953 $key_id = Strings::base64UrlEncode(self::myHandle($user));
2954 $type = 'application/xml';
2955 $encoding = 'base64url';
2956 $alg = 'RSA-SHA256';
2957 $signable_data = $data . '.' . Strings::base64UrlEncode($type) . '.' . Strings::base64UrlEncode($encoding) . '.' . Strings::base64UrlEncode($alg);
2959 // Fallback if the private key wasn't transmitted in the expected field
2960 if ($user['uprvkey'] == '') {
2961 $user['uprvkey'] = $user['prvkey'];
2964 $signature = Crypto::rsaSign($signable_data, $user['uprvkey']);
2965 $sig = Strings::base64UrlEncode($signature);
2970 '@attributes' => ['type' => $type],
2971 'me:encoding' => $encoding,
2974 '@attributes2' => ['key_id' => $key_id]
2978 $namespaces = ['me' => ActivityNamespace::SALMON_ME];
2980 return XML::fromArray($xmldata, $xml, false, $namespaces);
2984 * Create the envelope for a message
2986 * @param string $msg The message that is to be transmitted
2987 * @param array $user The record of the sender
2988 * @param array $contact Target of the communication
2989 * @param string $prvkey The private key of the sender
2990 * @param string $pubkey The public key of the receiver
2991 * @param bool $public Is the message public?
2993 * @return string The message that will be transmitted to other servers
2994 * @throws \Exception
2996 public static function buildMessage(string $msg, array $user, array $contact, string $prvkey, string $pubkey, bool $public = false): string
2998 // The message is put into an envelope with the sender's signature
2999 $envelope = self::buildMagicEnvelope($msg, $user);
3001 // Private messages are put into a second envelope, encrypted with the receivers public key
3003 $envelope = self::encodePrivateData($envelope, $user, $contact, $prvkey, $pubkey);
3010 * Creates a signature for a message
3012 * @param array $owner the array of the owner of the message
3013 * @param array $message The message that is to be signed
3015 * @return string The signature
3017 private static function signature(array $owner, array $message): string
3020 unset($sigmsg['author_signature']);
3021 unset($sigmsg['parent_author_signature']);
3023 $signed_text = implode(';', $sigmsg);
3025 return base64_encode(Crypto::rsaSign($signed_text, $owner['uprvkey'], 'sha256'));
3029 * Transmit a message to a target server
3031 * @param array $owner the array of the item owner
3032 * @param array $contact Target of the communication
3033 * @param string $envelope The message that is to be transmitted
3034 * @param bool $public_batch Is it a public post?
3035 * @param string $guid message guid
3037 * @return int Result of the transmission
3038 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3039 * @throws \ImagickException
3041 private static function transmit(array $owner, array $contact, string $envelope, bool $public_batch, string $guid = ''): int
3043 $enabled = intval(DI::config()->get('system', 'diaspora_enabled'));
3048 $logid = Strings::getRandomHex(4);
3050 // We always try to use the data from the fcontact table.
3051 // This is important for transmitting data to Friendica servers.
3052 if (!empty($contact['addr'])) {
3053 $fcontact = FContact::getByURL($contact['addr']);
3054 if (!empty($fcontact)) {
3055 $dest_url = ($public_batch ? $fcontact['batch'] : $fcontact['notify']);
3059 if (empty($dest_url)) {
3060 $dest_url = ($public_batch ? $contact['batch'] : $contact['notify']);
3064 Logger::notice('No URL for contact: ' . $contact['id'] . ' batch mode =' . $public_batch);
3068 Logger::notice('transmit: ' . $logid . '-' . $guid . ' ' . $dest_url);
3070 if (!intval(DI::config()->get('system', 'diaspora_test'))) {
3071 $content_type = (($public_batch) ? 'application/magic-envelope+xml' : 'application/json');
3073 $postResult = DI::httpClient()->post($dest_url . '/', $envelope, ['Content-Type' => $content_type]);
3074 $return_code = $postResult->getReturnCode();
3076 Logger::notice('test_mode');
3080 Logger::notice('transmit: ' . $logid . '-' . $guid . ' to ' . $dest_url . ' returns: ' . $return_code);
3082 return $return_code ? $return_code : -1;
3087 * Build the post xml
3089 * @param string $type The message type
3090 * @param array $message The message data
3092 * @return string The post XML
3094 public static function buildPostXml(string $type, array $message): string
3096 $data = [$type => $message];
3098 return XML::fromArray($data, $xml);
3102 * Builds and transmit messages
3104 * @param array $owner the array of the item owner
3105 * @param array $contact Target of the communication
3106 * @param string $type The message type
3107 * @param array $message The message data
3108 * @param bool $public_batch Is it a public post?
3109 * @param string $guid message guid
3111 * @return int Result of the transmission
3112 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3113 * @throws \ImagickException
3115 private static function buildAndTransmit(array $owner, array $contact, string $type, array $message, bool $public_batch = false, string $guid = '')
3117 $msg = self::buildPostXml($type, $message);
3119 // Fallback if the private key wasn't transmitted in the expected field
3120 if (empty($owner['uprvkey'])) {
3121 $owner['uprvkey'] = $owner['prvkey'];
3124 // When sending content to Friendica contacts using the Diaspora protocol
3125 // we have to fetch the public key from the fcontact.
3126 // This is due to the fact that legacy DFRN had unique keys for every contact.
3127 $pubkey = $contact['pubkey'];
3128 if (!empty($contact['addr'])) {
3129 $fcontact = FContact::getByURL($contact['addr']);
3130 if (!empty($fcontact)) {
3131 $pubkey = $fcontact['pubkey'];
3134 // The "addr" field should always be filled.
3135 // If this isn't the case, it will raise a notice some lines later.
3136 // And in the log we will see where it came from and we can handle it there.
3137 Logger::notice('Empty addr', ['contact' => $contact ?? [], 'callstack' => System::callstack(20)]);
3140 $envelope = self::buildMessage($msg, $owner, $contact, $owner['uprvkey'], $pubkey ?? '', $public_batch);
3142 $return_code = self::transmit($owner, $contact, $envelope, $public_batch, $guid);
3144 Logger::info('Transmitted message', ['owner' => $owner['uid'], 'target' => $contact['addr'], 'type' => $type, 'guid' => $guid, 'result' => $return_code]);
3146 return $return_code;
3150 * sends a participation (Used to get all further updates)
3152 * @param array $contact Target of the communication
3153 * @param array $item Item array
3155 * @return int The result of the transmission
3156 * @throws \Exception
3158 private static function sendParticipation(array $contact, array $item): int
3160 // Don't send notifications for private postings
3161 if ($item['private'] == Item::PRIVATE) {
3165 $cachekey = 'diaspora:sendParticipation:' . $item['guid'];
3167 $result = DI::cache()->get($cachekey);
3168 if (!is_null($result)) {
3172 // Fetch some user id to have a valid handle to transmit the participation.
3173 // In fact it doesn't matter which user sends this - but it is needed by the protocol.
3174 // If the item belongs to a user, we take this user id.
3175 if ($item['uid'] == 0) {
3176 // @todo Possibly use an administrator account?
3177 $condition = ['verified' => true, 'blocked' => false,
3178 'account_removed' => false, 'account_expired' => false, 'account-type' => User::ACCOUNT_TYPE_PERSON];
3179 $first_user = DBA::selectFirst('user', ['uid'], $condition, ['order' => ['uid']]);
3180 $owner = User::getOwnerDataById($first_user['uid']);
3182 $owner = User::getOwnerDataById($item['uid']);
3185 $author = self::myHandle($owner);
3188 'author' => $author,
3189 'guid' => System::createUUID(),
3190 'parent_type' => 'Post',
3191 'parent_guid' => $item['guid']
3194 Logger::info('Send participation for ' . $item['guid'] . ' by ' . $author);
3196 // It doesn't matter what we store, we only want to avoid sending repeated notifications for the same item
3197 DI::cache()->set($cachekey, $item['guid'], Duration::QUARTER_HOUR);
3199 return self::buildAndTransmit($owner, $contact, 'participation', $message);
3203 * sends an account migration
3205 * @param array $owner the array of the item owner
3206 * @param array $contact Target of the communication
3207 * @param int $uid User ID
3209 * @return int The result of the transmission
3210 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3211 * @throws \ImagickException
3213 public static function sendAccountMigration(array $owner, array $contact, int $uid): int
3215 $old_handle = DI::pConfig()->get($uid, 'system', 'previous_addr');
3216 $profile = self::createProfileData($uid);
3218 $signed_text = 'AccountMigration:'.$old_handle.':'.$profile['author'];
3219 $signature = base64_encode(Crypto::rsaSign($signed_text, $owner['uprvkey'], 'sha256'));
3222 'author' => $old_handle,
3223 'profile' => $profile,
3224 'signature' => $signature
3227 Logger::info('Send account migration', ['msg' => $message]);
3229 return self::buildAndTransmit($owner, $contact, 'account_migration', $message);
3233 * Sends a "share" message
3235 * @param array $owner the array of the item owner
3236 * @param array $contact Target of the communication
3238 * @return int The result of the transmission
3239 * @throws \Exception
3241 public static function sendShare(array $owner, array $contact): int
3244 * @todo support the different possible combinations of "following" and "sharing"
3245 * Currently, Diaspora only interprets the "sharing" field
3247 * Before switching this code productive, we have to check all "sendShare" calls if "rel" is set correctly
3251 switch ($contact["rel"]) {
3252 case Contact::FRIEND:
3256 case Contact::SHARING:
3260 case Contact::FOLLOWER:
3267 'author' => self::myHandle($owner),
3268 'recipient' => $contact['addr'],
3269 'following' => 'true',
3273 Logger::info('Send share', ['msg' => $message]);
3275 return self::buildAndTransmit($owner, $contact, 'contact', $message);
3279 * sends an "unshare"
3281 * @param array $owner the array of the item owner
3282 * @param array $contact Target of the communication
3284 * @return int The result of the transmission
3285 * @throws \Exception
3287 public static function sendUnshare(array $owner, array $contact): int
3290 'author' => self::myHandle($owner),
3291 'recipient' => $contact['addr'],
3292 'following' => 'false',
3293 'sharing' => 'false'
3296 Logger::info('Send unshare', ['msg' => $message]);
3298 return self::buildAndTransmit($owner, $contact, 'contact', $message);
3302 * Checks a message body if it is a reshare
3304 * @param string $body The message body that is to be check
3305 * @param bool $complete Should it be a complete check or a simple check?
3307 * @return array|bool Reshare details or "false" if no reshare
3308 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3309 * @throws \ImagickException
3311 public static function isReshare(string $body, bool $complete = true)
3313 $body = trim($body);
3315 $reshared = Item::getShareArray(['body' => $body]);
3316 if (empty($reshared)) {
3320 // Skip if it isn't a pure repeated messages
3321 // Does it start with a share?
3322 if (!empty($reshared['comment']) && $complete) {
3326 if (!empty($reshared['guid']) && $complete) {
3327 $condition = ['guid' => $reshared['guid'], 'network' => [Protocol::DFRN, Protocol::DIASPORA]];
3328 $item = Post::selectFirst(['contact-id'], $condition);
3329 if (DBA::isResult($item)) {
3331 $ret['root_handle'] = self::handleFromContact($item['contact-id']);
3332 $ret['root_guid'] = $reshared['guid'];
3334 } elseif ($complete) {
3335 // We are resharing something that isn't a DFRN or Diaspora post.
3336 // So we have to return "false" on "$complete" to not trigger a reshare.
3339 } elseif (empty($reshared['guid']) && $complete) {
3345 if (!empty($reshared['profile']) && ($cid = Contact::getIdForURL($reshared['profile']))) {
3346 $contact = DBA::selectFirst('contact', ['addr'], ['id' => $cid]);
3347 if (!empty($contact['addr'])) {
3348 $ret['root_handle'] = $contact['addr'];
3352 if (empty($ret) && !$complete) {
3360 * Create an event array
3362 * @param integer $event_id The id of the event
3364 * @return array with event data
3365 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3367 private static function buildEvent(string $event_id): array
3369 $event = DBA::selectFirst('event', [], ['id' => $event_id]);
3370 if (!DBA::isResult($event)) {
3376 $owner = User::getOwnerDataById($event['uid']);
3381 $eventdata['author'] = self::myHandle($owner);
3383 if ($event['guid']) {
3384 $eventdata['guid'] = $event['guid'];
3387 $mask = DateTimeFormat::ATOM;
3389 /// @todo - establish "all day" events in Friendica
3390 $eventdata['all_day'] = 'false';
3392 $eventdata['timezone'] = 'UTC';
3394 if ($event['start']) {
3395 $eventdata['start'] = DateTimeFormat::utc($event['start'], $mask);
3397 if ($event['finish'] && !$event['nofinish']) {
3398 $eventdata['end'] = DateTimeFormat::utc($event['finish'], $mask);
3400 if ($event['summary']) {
3401 $eventdata['summary'] = html_entity_decode(BBCode::toMarkdown($event['summary']));
3403 if ($event['desc']) {
3404 $eventdata['description'] = html_entity_decode(BBCode::toMarkdown($event['desc']));
3406 if ($event['location']) {
3407 $event['location'] = preg_replace("/\[map\](.*?)\[\/map\]/ism", '$1', $event['location']);
3408 $coord = Map::getCoordinates($event['location']);
3411 $location['address'] = html_entity_decode(BBCode::toMarkdown($event['location']));
3412 if (!empty($coord['lat']) && !empty($coord['lon'])) {
3413 $location['lat'] = $coord['lat'];
3414 $location['lng'] = $coord['lon'];
3416 $location['lat'] = 0;
3417 $location['lng'] = 0;
3419 $eventdata['location'] = $location;
3426 * Create a post (status message or reshare)
3428 * @param array $item The item that will be exported
3429 * @param array $owner the array of the item owner
3432 * 'type' -> Message type ("status_message" or "reshare")
3433 * 'message' -> Array of XML elements of the status
3434 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3435 * @throws \ImagickException
3437 public static function buildStatus(array $item, array $owner)
3439 $cachekey = 'diaspora:buildStatus:' . $item['guid'];
3441 $result = DI::cache()->get($cachekey);
3442 if (!is_null($result)) {
3446 $myaddr = self::myHandle($owner);
3448 $public = ($item['private'] == Item::PRIVATE ? 'false' : 'true');
3449 $created = DateTimeFormat::utc($item['received'], DateTimeFormat::ATOM);
3450 $edited = DateTimeFormat::utc($item['edited'] ?? $item['created'], DateTimeFormat::ATOM);
3452 // Detect a share element and do a reshare
3453 if (($item['private'] != Item::PRIVATE) && ($ret = self::isReshare($item['body']))) {
3455 'author' => $myaddr,
3456 'guid' => $item['guid'],
3457 'created_at' => $created,
3458 'root_author' => $ret['root_handle'],
3459 'root_guid' => $ret['root_guid'],
3460 'provider_display_name' => $item['app'],
3466 $title = $item['title'];
3467 $body = Post\Media::addAttachmentsToBody($item['uri-id'], $item['body']);
3469 // Fetch the title from an attached link - if there is one
3470 if (empty($item['title']) && DI::pConfig()->get($owner['uid'], 'system', 'attach_link_title')) {
3471 $page_data = BBCode::getAttachmentData($item['body']);
3472 if (!empty($page_data['type']) && !empty($page_data['title']) && ($page_data['type'] == 'link')) {
3473 $title = $page_data['title'];
3477 if ($item['author-link'] != $item['owner-link']) {
3478 $body = BBCode::getShareOpeningTag($item['author-name'], $item['author-link'], $item['author-avatar'],
3479 $item['plink'], $item['created']) . $body . '[/share]';
3482 // convert to markdown
3483 $body = html_entity_decode(BBCode::toMarkdown($body));
3486 if (strlen($title)) {
3487 $body = '### ' . html_entity_decode($title) . "\n\n" . $body;
3490 $attachments = Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT, Post\Media::TORRENT, Post\Media::UNKNOWN]);
3491 if (!empty($attachments)) {
3492 $body .= "\n[hr]\n";
3493 foreach ($attachments as $attachment) {
3494 $body .= "[" . $attachment['description'] . "](" . $attachment['url'] . ")\n";
3500 if ($item['location'] != '')
3501 $location['address'] = $item['location'];
3503 if ($item['coord'] != '') {
3504 $coord = explode(' ', $item['coord']);
3505 $location['lat'] = $coord[0];
3506 $location['lng'] = $coord[1];
3510 'author' => $myaddr,
3511 'guid' => $item['guid'],
3512 'created_at' => $created,
3513 'edited_at' => $edited,
3514 'public' => $public,
3516 'provider_display_name' => $item['app'],
3517 'location' => $location
3520 // Diaspora rejects messages when they contain a location without "lat" or "lng"
3521 if (!isset($location['lat']) || !isset($location['lng'])) {
3522 unset($message['location']);
3525 if ($item['event-id'] > 0) {
3526 $event = self::buildEvent($item['event-id']);
3527 if (count($event)) {
3528 $message['event'] = $event;
3530 if (!empty($event['location']['address']) &&
3531 !empty($event['location']['lat']) &&
3532 !empty($event['location']['lng'])) {
3533 $message['location'] = $event['location'];
3536 /// @todo Once Diaspora supports it, we will remove the body and the location hack above
3537 // $message['text'] = '';
3541 $type = 'status_message';
3546 'message' => $message
3549 DI::cache()->set($cachekey, $msg, Duration::QUARTER_HOUR);
3554 private static function prependParentAuthorMention(string $body, string $profile_url): string
3556 $profile = Contact::getByURL($profile_url, false, ['addr', 'name']);
3557 if (!empty($profile['addr'])
3558 && !strstr($body, $profile['addr'])
3559 && !strstr($body, $profile_url)
3561 $body = '@[url=' . $profile_url . ']' . $profile['name'] . '[/url] ' . $body;
3570 * @param array $item The item that will be exported
3571 * @param array $owner the array of the item owner
3572 * @param array $contact Target of the communication
3573 * @param bool $public_batch Is it a public post?
3575 * @return int The result of the transmission
3576 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3577 * @throws \ImagickException
3579 public static function sendStatus(array $item, array $owner, array $contact, bool $public_batch = false): int
3581 $status = self::buildStatus($item, $owner);
3583 return self::buildAndTransmit($owner, $contact, $status['type'], $status['message'], $public_batch, $item['guid']);
3587 * Creates a "like" object
3589 * @param array $item The item that will be exported
3590 * @param array $owner the array of the item owner
3592 * @return array|bool The data for a "like" or false on error
3593 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3595 private static function constructLike(array $item, array $owner)
3597 $parent = Post::selectFirst(['guid', 'uri', 'thr-parent'], ['uri' => $item['thr-parent']]);
3598 if (!DBA::isResult($parent)) {
3602 $target_type = ($parent['uri'] === $parent['thr-parent'] ? 'Post' : 'Comment');
3604 if ($item['verb'] === Activity::LIKE) {
3606 } elseif ($item['verb'] === Activity::DISLIKE) {
3607 $positive = 'false';
3611 'author' => self::myHandle($owner),
3612 'guid' => $item['guid'],
3613 'parent_guid' => $parent['guid'],
3614 'parent_type' => $target_type,
3615 'positive' => $positive,
3616 'author_signature' => '',
3621 * Creates an "EventParticipation" object
3623 * @param array $item The item that will be exported
3624 * @param array $owner the array of the item owner
3626 * @return array|bool The data for an "EventParticipation" or false on error
3627 * @throws \Exception
3629 private static function constructAttend(array $item, array $owner)
3631 $parent = Post::selectFirst(['guid'], ['uri' => $item['thr-parent']]);
3632 if (!DBA::isResult($parent)) {
3636 switch ($item['verb']) {
3637 case Activity::ATTEND:
3638 $attend_answer = 'accepted';
3640 case Activity::ATTENDNO:
3641 $attend_answer = 'declined';
3643 case Activity::ATTENDMAYBE:
3644 $attend_answer = 'tentative';
3647 Logger::warning('Unknown verb ' . $item['verb'] . ' in item ' . $item['guid']);
3652 'author' => self::myHandle($owner),
3653 'guid' => $item['guid'],
3654 'parent_guid' => $parent['guid'],
3655 'status' => $attend_answer,
3656 'author_signature' => ''
3661 * Creates the object for a comment
3663 * @param array $item The item that will be exported
3664 * @param array $owner the array of the item owner
3666 * @return array|false The data for a comment
3667 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3669 private static function constructComment(array $item, array $owner)
3671 $cachekey = 'diaspora:constructComment:' . $item['guid'];
3673 $result = DI::cache()->get($cachekey);
3674 if (!is_null($result)) {
3678 $toplevel_item = Post::selectFirst(['guid', 'author-id', 'author-link', 'gravity'], ['id' => $item['parent'], 'parent' => $item['parent']]);
3679 if (!DBA::isResult($toplevel_item)) {
3680 Logger::error('Missing parent conversation item', ['parent' => $item['parent']]);
3684 $thread_parent_item = $toplevel_item;
3685 if ($item['thr-parent'] != $item['parent-uri']) {
3686 $thread_parent_item = Post::selectFirst(['guid', 'author-id', 'author-link', 'gravity'], ['uri' => $item['thr-parent'], 'uid' => $item['uid']]);
3689 $body = Post\Media::addAttachmentsToBody($item['uri-id'], $item['body']);
3691 // The replied to autor mention is prepended for clarity if:
3692 // - Item replied isn't yours
3693 // - Item is public or explicit mentions are disabled
3694 // - Implicit mentions are enabled
3696 $item['author-id'] != $thread_parent_item['author-id']
3697 && ($thread_parent_item['gravity'] != GRAVITY_PARENT)
3698 && (empty($item['uid']) || !Feature::isEnabled($item['uid'], 'explicit_mentions'))
3699 && !DI::config()->get('system', 'disable_implicit_mentions')
3701 $body = self::prependParentAuthorMention($body, $thread_parent_item['author-link']);
3704 $text = html_entity_decode(BBCode::toMarkdown($body));
3705 $created = DateTimeFormat::utc($item['created'], DateTimeFormat::ATOM);
3706 $edited = DateTimeFormat::utc($item['edited'], DateTimeFormat::ATOM);
3709 'author' => self::myHandle($owner),
3710 'guid' => $item['guid'],
3711 'created_at' => $created,
3712 'edited_at' => $edited,
3713 'parent_guid' => $toplevel_item['guid'],
3715 'author_signature' => '',
3718 // Send the thread parent guid only if it is a threaded comment
3719 if ($item['thr-parent'] != $item['parent-uri']) {
3720 $comment['thread_parent_guid'] = $thread_parent_item['guid'];
3723 DI::cache()->set($cachekey, $comment, Duration::QUARTER_HOUR);
3729 * Send a like or a comment
3731 * @param array $item The item that will be exported
3732 * @param array $owner the array of the item owner
3733 * @param array $contact Target of the communication
3734 * @param bool $public_batch Is it a public post?
3736 * @return int The result of the transmission
3737 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3738 * @throws \ImagickException
3740 public static function sendFollowup(array $item, array $owner, array $contact, bool $public_batch = false): int
3742 if (in_array($item['verb'], [Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE])) {
3743 $message = self::constructAttend($item, $owner);
3744 $type = 'event_participation';
3745 } elseif (in_array($item['verb'], [Activity::LIKE, Activity::DISLIKE])) {
3746 $message = self::constructLike($item, $owner);
3748 } elseif (!in_array($item['verb'], [Activity::FOLLOW, Activity::TAG])) {
3749 $message = self::constructComment($item, $owner);
3753 if (empty($message)) {
3757 $message['author_signature'] = self::signature($owner, $message);
3759 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item['guid']);
3763 * Relays messages (like, comment, retraction) to other servers if we are the thread owner
3765 * @param array $item The item that will be exported
3766 * @param array $owner the array of the item owner
3767 * @param array $contact Target of the communication
3768 * @param bool $public_batch Is it a public post?
3770 * @return int The result of the transmission
3771 * @throws \Exception
3773 public static function sendRelay(array $item, array $owner, array $contact, bool $public_batch = false): int
3775 if ($item['deleted']) {
3776 return self::sendRetraction($item, $owner, $contact, $public_batch, true);
3777 } elseif (in_array($item['verb'], [Activity::LIKE, Activity::DISLIKE])) {
3783 Logger::info('Got relayable data ' . $type . ' for item ' . $item['guid'] . ' (' . $item['id'] . ')');
3785 $msg = json_decode($item['signed_text'], true);
3788 if (is_array($msg)) {
3789 foreach ($msg as $field => $data) {
3790 if (!$item['deleted']) {
3791 if ($field == 'diaspora_handle') {
3794 if ($field == 'target_type') {
3795 $field = 'parent_type';
3799 $message[$field] = $data;
3802 Logger::info('Signature text for item ' . $item['guid'] . ' (' . $item['id'] . ') could not be extracted: ' . $item['signed_text']);
3805 $message['parent_author_signature'] = self::signature($owner, $message);
3807 Logger::info('Relayed data', ['msg' => $message]);
3809 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item['guid']);
3813 * Sends a retraction (deletion) of a message, like or comment
3815 * @param array $item The item that will be exported
3816 * @param array $owner the array of the item owner
3817 * @param array $contact Target of the communication
3818 * @param bool $public_batch Is it a public post?
3819 * @param bool $relay Is the retraction transmitted from a relay?
3821 * @return int The result of the transmission
3822 * @throws \Exception
3824 public static function sendRetraction(array $item, array $owner, array $contact, bool $public_batch = false, bool $relay = false): int
3826 $itemaddr = self::handleFromContact($item['contact-id'], $item['author-id']);
3828 $msg_type = 'retraction';
3830 if ($item['gravity'] == GRAVITY_PARENT) {
3831 $target_type = 'Post';
3832 } elseif (in_array($item['verb'], [Activity::LIKE, Activity::DISLIKE])) {
3833 $target_type = 'Like';
3835 $target_type = 'Comment';
3839 'author' => $itemaddr,
3840 'target_guid' => $item['guid'],
3841 'target_type' => $target_type
3844 Logger::info('Got message', ['msg' => $message]);
3846 return self::buildAndTransmit($owner, $contact, $msg_type, $message, $public_batch, $item['guid']);
3852 * @param array $item The item that will be exported
3853 * @param array $owner The owner
3854 * @param array $contact Target of the communication
3856 * @return int The result of the transmission
3857 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3858 * @throws \ImagickException
3860 public static function sendMail(array $item, array $owner, array $contact): int
3862 $myaddr = self::myHandle($owner);
3864 $cnv = DBA::selectFirst('conv', [], ['id' => $item['convid'], 'uid' => $item['uid']]);
3865 if (!DBA::isResult($cnv)) {
3866 Logger::notice('Conversation not found.');
3870 $body = BBCode::toMarkdown($item['body']);
3871 $created = DateTimeFormat::utc($item['created'], DateTimeFormat::ATOM);
3874 'author' => $myaddr,
3875 'guid' => $item['guid'],
3876 'conversation_guid' => $cnv['guid'],
3878 'created_at' => $created,
3881 if ($item['reply']) {
3886 'author' => $cnv['creator'],
3887 'guid' => $cnv['guid'],
3888 'subject' => $cnv['subject'],
3889 'created_at' => DateTimeFormat::utc($cnv['created'], DateTimeFormat::ATOM),
3890 'participants' => $cnv['recips'],
3894 $type = 'conversation';
3897 return self::buildAndTransmit($owner, $contact, $type, $message, false, $item['guid']);
3901 * Split a name into first name and last name
3903 * @param string $name The name
3905 * @return array The array with "first" and "last"
3907 public static function splitName(string $name): array
3909 $name = trim($name);
3911 // Is the name longer than 64 characters? Then cut the rest of it.
3912 if (strlen($name) > 64) {
3913 if ((strpos($name, ' ') <= 64) && (strpos($name, ' ') !== false)) {
3914 $name = trim(substr($name, 0, strrpos(substr($name, 0, 65), ' ')));
3916 $name = substr($name, 0, 64);
3920 // Take the first word as first name
3921 $first = ((strpos($name, ' ') ? trim(substr($name, 0, strpos($name, ' '))) : $name));
3922 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
3923 if ((strlen($first) < 32) && (strlen($last) < 32)) {
3924 return ['first' => $first, 'last' => $last];
3927 // Take the last word as last name
3928 $first = ((strrpos($name, ' ') ? trim(substr($name, 0, strrpos($name, ' '))) : $name));
3929 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
3931 if ((strlen($first) < 32) && (strlen($last) < 32)) {
3932 return ['first' => $first, 'last' => $last];
3935 // Take the first 32 characters if there is no space in the first 32 characters
3936 if ((strpos($name, ' ') > 32) || (strpos($name, ' ') === false)) {
3937 $first = substr($name, 0, 32);
3938 $last = substr($name, 32);
3939 return ['first' => $first, 'last' => $last];
3942 $first = trim(substr($name, 0, strrpos(substr($name, 0, 33), ' ')));
3943 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
3945 // Check if the last name is longer than 32 characters
3946 if (strlen($last) > 32) {
3947 if (strpos($last, ' ') <= 32) {
3948 $last = trim(substr($last, 0, strrpos(substr($last, 0, 33), ' ')));
3950 $last = substr($last, 0, 32);
3954 return ['first' => $first, 'last' => $last];
3958 * Create profile data
3960 * @param int $uid The user id
3962 * @return array The profile data
3963 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3965 private static function createProfileData(int $uid): array
3967 $profile = DBA::selectFirst('owner-view', ['uid', 'addr', 'name', 'location', 'net-publish', 'dob', 'about', 'pub_keywords'], ['uid' => $uid]);
3969 if (!DBA::isResult($profile)) {
3973 $split_name = self::splitName($profile['name']);
3976 'author' => $profile['addr'],
3977 'first_name' => $split_name['first'],
3978 'last_name' => $split_name['last'],
3979 'image_url' => DI::baseUrl() . '/photo/custom/300/' . $profile['uid'] . '.jpg',
3980 'image_url_medium' => DI::baseUrl() . '/photo/custom/100/' . $profile['uid'] . '.jpg',
3981 'image_url_small' => DI::baseUrl() . '/photo/custom/50/' . $profile['uid'] . '.jpg',
3982 'searchable' => ($profile['net-publish'] ? 'true' : 'false'),
3986 'tag_string' => null,
3990 if ($data['searchable'] === 'true') {
3991 $data['birthday'] = '';
3993 if ($profile['dob'] && ($profile['dob'] > '0000-00-00')) {
3994 [$year, $month, $day] = sscanf($profile['dob'], '%4d-%2d-%2d');
3998 $data['birthday'] = DateTimeFormat::utc($year . '-' . $month . '-' . $day, 'Y-m-d');
4001 $data['about'] = BBCode::toMarkdown($profile['about'] ?? '');
4003 $data['location'] = $profile['location'];
4004 $data['tag_string'] = '';
4006 if ($profile['pub_keywords']) {
4007 $kw = str_replace(',', ' ', $profile['pub_keywords']);
4008 $kw = str_replace(' ', ' ', $kw);
4009 $arr = explode(' ', $kw);
4011 for ($x = 0; $x < 5; $x ++) {
4012 if (!empty($arr[$x])) {
4013 $data['tag_string'] .= '#'. trim($arr[$x]) .' ';
4018 $data['tag_string'] = trim($data['tag_string']);
4025 * Sends profile data
4027 * @param int $uid The user id
4028 * @param array $recipients optional, default empty array
4031 * @throws \Exception
4033 public static function sendProfile(int $uid, array $recipients = [])
4036 Logger::warning('Parameter "uid" is empty');
4040 $owner = User::getOwnerDataById($uid);
4041 if (empty($owner)) {
4042 Logger::warning('Cannot fetch User record', ['uid' => $uid]);
4046 if (empty($recipients)) {
4047 Logger::debug('No recipients provided, fetching for user', ['uid' => $uid]);
4048 $recipients = DBA::selectToArray('contact', [], ['network' => Protocol::DIASPORA, 'uid' => $uid, 'rel' => [Contact::FOLLOWER, Contact::FRIEND]]);
4051 if (empty($recipients)) {
4052 Logger::warning('Cannot fetch recipients', ['uid' => $uid]);
4056 $message = self::createProfileData($uid);
4058 // @todo Split this into single worker jobs
4059 foreach ($recipients as $recipient) {
4060 Logger::info('Send updated profile data for user ' . $uid . ' to contact ' . $recipient['id']);
4061 self::buildAndTransmit($owner, $recipient, 'profile', $message);
4066 * Creates the signature for likes that are created on our system
4068 * @param integer $uid The user of that comment
4069 * @param array $item Item array
4071 * @return array|bool Signed content or false on error
4072 * @throws \Exception
4074 public static function createLikeSignature(int $uid, array $item)
4076 $owner = User::getOwnerDataById($uid);
4077 if (empty($owner)) {
4078 Logger::info('No owner post, so not storing signature', ['uid' => $uid]);
4082 if (!in_array($item['verb'], [Activity::LIKE, Activity::DISLIKE])) {
4083 Logger::warning('Item is neither a like nor a dislike', ['uid' => $uid, 'item[verb]' => $item['verb']]);;
4087 $message = self::constructLike($item, $owner);
4088 if ($message === false) {
4092 $message['author_signature'] = self::signature($owner, $message);
4098 * Creates the signature for Comments that are created on our system
4100 * @param array $item Item array
4102 * @return array|bool Signed content or false on error
4103 * @throws \Exception
4105 public static function createCommentSignature(array $item)
4108 if (!empty($item['author-link'])) {
4109 $url = $item['author-link'];
4111 $contact = Contact::getById($item['author-id'], ['url']);
4112 if (empty($contact['url'])) {
4113 Logger::warning('Author Contact not found', ['author-id' => $item['author-id']]);
4116 $url = $contact['url'];
4119 $uid = User::getIdForURL($url);
4121 Logger::info('No owner post, so not storing signature', ['url' => $contact['url'] ?? 'No contact loaded']);
4125 $owner = User::getOwnerDataById($uid);
4126 if (empty($owner)) {
4127 Logger::info('No owner post, so not storing signature');
4131 // This is only needed for the automated tests
4132 if (empty($owner['uprvkey'])) {
4136 $message = self::constructComment($item, $owner);
4137 if ($message === false) {
4141 $message['author_signature'] = self::signature($owner, $message);
4146 public static function performReshare(int $UriId, int $uid): int
4148 $fields = ['uri-id', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink'];
4149 $item = Post::selectFirst($fields, ['uri-id' => $UriId, 'uid' => [$uid, 0], 'private' => [Item::PUBLIC, Item::UNLISTED]]);
4150 if (!DBA::isResult($item)) {
4154 if (strpos($item['body'], '[/share]') !== false) {
4155 $pos = strpos($item['body'], '[share');
4156 $post = substr($item['body'], $pos);
4158 $post = BBCode::getShareOpeningTag($item['author-name'], $item['author-link'], $item['author-avatar'], $item['plink'], $item['created'], $item['guid']);
4160 if (!empty($item['title'])) {
4161 $post .= '[h3]' . $item['title'] . "[/h3]\n";
4164 $post .= $item['body'];
4165 $post .= '[/share]';
4168 $owner = User::getOwnerDataById($uid);
4169 $author = Contact::getPublicIdByUserId($uid);
4173 'verb' => Activity::POST,
4174 'contact-id' => $owner['id'],
4175 'author-id' => $author,
4176 'owner-id' => $author,
4178 'allow_cid' => $owner['allow_cid'] ?? '',
4179 'allow_gid' => $owner['allow_gid']?? '',
4180 'deny_cid' => $owner['deny_cid'] ?? '',
4181 'deny_gid' => $owner['deny_gid'] ?? '',
4184 if (!empty($item['allow_cid'] . $item['allow_gid'] . $item['deny_cid'] . $item['deny_gid'])) {
4185 $item['private'] = Item::PRIVATE;
4186 } elseif (DI::pConfig()->get($uid, 'system', 'unlisted')) {
4187 $item['private'] = Item::UNLISTED;
4189 $item['private'] = Item::PUBLIC;
4192 // Don't trigger the addons
4193 $item['api_source'] = false;
4195 return Item::insert($item, true);