3 * @copyright Copyright (C) 2020, Friendica
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\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\GContact;
37 use Friendica\Model\Item;
38 use Friendica\Model\ItemURI;
39 use Friendica\Model\Mail;
40 use Friendica\Model\Post;
41 use Friendica\Model\Tag;
42 use Friendica\Model\User;
43 use Friendica\Network\Probe;
44 use Friendica\Util\Crypto;
45 use Friendica\Util\DateTimeFormat;
46 use Friendica\Util\Map;
47 use Friendica\Util\Network;
48 use Friendica\Util\Strings;
49 use Friendica\Util\XML;
50 use Friendica\Worker\Delivery;
54 * This class contain functions to create and send Diaspora XML files
59 * Mark the relay contact of the given contact for archival
60 * This is called whenever there is a communication issue with the server.
61 * It avoids sending stuff to servers who don't exist anymore.
62 * The relay contact is a technical contact entry that exists once per server.
64 * @param array $contact of the relay contact
66 public static function markRelayForArchival(array $contact)
68 if (!empty($contact['contact-type']) && ($contact['contact-type'] == Contact::TYPE_RELAY)) {
69 // This is already the relay contact, we don't need to fetch it
70 $relay_contact = $contact;
71 } elseif (empty($contact['baseurl'])) {
72 if (!empty($contact['batch'])) {
73 $condition = ['uid' => 0, 'network' => Protocol::FEDERATED, 'batch' => $contact['batch'], 'contact-type' => Contact::TYPE_RELAY];
74 $relay_contact = DBA::selectFirst('contact', [], $condition);
79 $relay_contact = self::getRelayContact($contact['baseurl'], []);
82 if (!empty($relay_contact)) {
83 Logger::info('Relay contact will be marked for archival', ['id' => $relay_contact['id'], 'url' => $relay_contact['url']]);
84 Contact::markForArchival($relay_contact);
89 * Return a list of relay servers
91 * The list contains not only the official relays but also servers that we serve directly
93 * @param integer $item_id The id of the item that is sent
94 * @param array $contacts The previously fetched contacts
96 * @return array of relay servers
97 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
99 public static function relayList($item_id, array $contacts = [])
103 // Fetching relay servers
104 $serverdata = DI::config()->get("system", "relay_server");
106 if (!empty($serverdata)) {
107 $servers = explode(",", $serverdata);
108 foreach ($servers as $server) {
109 $serverlist[$server] = trim($server);
113 if (DI::config()->get("system", "relay_directly", false)) {
114 // We distribute our stuff based on the parent to ensure that the thread will be complete
115 $parent = Item::selectFirst(['uri-id'], ['id' => $item_id]);
116 if (!DBA::isResult($parent)) {
120 // Servers that want to get all content
121 $servers = DBA::select('gserver', ['url'], ['relay-subscribe' => true, 'relay-scope' => 'all']);
122 while ($server = DBA::fetch($servers)) {
123 $serverlist[$server['url']] = $server['url'];
125 DBA::close($servers);
127 // All tags of the current post
128 $tags = DBA::select('tag-view', ['name'], ['uri-id' => $parent['uri-id'], 'type' => Tag::HASHTAG]);
130 while ($tag = DBA::fetch($tags)) {
131 $taglist[] = $tag['name'];
135 // All servers who wants content with this tag
137 if (!empty($taglist)) {
138 $tagserver = DBA::select('gserver-tag', ['gserver-id'], ['tag' => $taglist]);
139 while ($server = DBA::fetch($tagserver)) {
140 $tagserverlist[] = $server['gserver-id'];
142 DBA::close($tagserver);
145 // All adresses with the given id
146 if (!empty($tagserverlist)) {
147 $servers = DBA::select('gserver', ['url'], ['relay-subscribe' => true, 'relay-scope' => 'tags', 'id' => $tagserverlist]);
148 while ($server = DBA::fetch($servers)) {
149 $serverlist[$server['url']] = $server['url'];
151 DBA::close($servers);
155 // Now we are collecting all relay contacts
156 foreach ($serverlist as $server_url) {
157 // We don't send messages to ourselves
158 if (Strings::compareLink($server_url, DI::baseUrl())) {
161 $contact = self::getRelayContact($server_url);
162 if (is_bool($contact)) {
167 foreach ($contacts as $entry) {
168 if ($entry['batch'] == $contact['batch']) {
174 $contacts[] = $contact;
182 * Return a contact for a given server address or creates a dummy entry
184 * @param string $server_url The url of the server
185 * @param array $fields Fieldlist
186 * @return array with the contact
189 private static function getRelayContact(string $server_url, array $fields = ['batch', 'id', 'url', 'name', 'network', 'protocol', 'archive', 'blocked'])
191 // Fetch the relay contact
192 $condition = ['uid' => 0, 'nurl' => Strings::normaliseLink($server_url),
193 'contact-type' => Contact::TYPE_RELAY];
194 $contact = DBA::selectFirst('contact', $fields, $condition);
196 if (DBA::isResult($contact)) {
197 if ($contact['archive'] || $contact['blocked']) {
202 self::setRelayContact($server_url);
204 $contact = DBA::selectFirst('contact', $fields, $condition);
205 if (DBA::isResult($contact)) {
210 // It should never happen that we arrive here
215 * Update or insert a relay contact
217 * @param string $server_url The url of the server
218 * @param array $network_fields Optional network specific fields
221 public static function setRelayContact($server_url, array $network_fields = [])
223 $fields = ['created' => DateTimeFormat::utcNow(),
224 'name' => 'relay', 'nick' => 'relay', 'url' => $server_url,
225 'nurl' => Strings::normaliseLink($server_url),
226 'network' => Protocol::DIASPORA, 'uid' => 0,
227 'batch' => $server_url . '/receive/public',
228 'rel' => Contact::FOLLOWER, 'blocked' => false,
229 'pending' => false, 'writable' => true,
230 'baseurl' => $server_url, 'contact-type' => Contact::TYPE_RELAY];
232 $fields = array_merge($fields, $network_fields);
234 $condition = ['uid' => 0, 'nurl' => Strings::normaliseLink($server_url)];
235 $old = DBA::selectFirst('contact', [], $condition);
236 if (DBA::isResult($old)) {
237 unset($fields['created']);
238 $condition = ['id' => $old['id']];
240 Logger::info('Update relay contact', ['fields' => $fields, 'condition' => $condition]);
241 DBA::update('contact', $fields, $condition, $old);
243 Logger::info('Create relay contact', ['fields' => $fields]);
244 Contact::insert($fields);
249 * Return a list of participating contacts for a thread
251 * This is used for the participation feature.
252 * One of the parameters is a contact array.
253 * This is done to avoid duplicates.
255 * @param array $item Item that is about to be delivered
256 * @param array $contacts The previously fetched contacts
258 * @return array of relay servers
261 public static function participantsForThread(array $item, array $contacts)
263 if (!in_array($item['private'], [Item::PUBLIC, Item::UNLISTED]) || in_array($item["verb"], [Activity::FOLLOW, Activity::TAG])) {
264 Logger::info('Item is private or a participation request. It will not be relayed', ['guid' => $item['guid'], 'private' => $item['private'], 'verb' => $item['verb']]);
268 $items = Item::select(['author-id', 'author-link', 'parent-author-link', 'parent-guid', 'guid'],
269 ['parent' => $item['parent'], 'gravity' => [GRAVITY_COMMENT, GRAVITY_ACTIVITY]]);
270 while ($item = DBA::fetch($items)) {
271 $contact = DBA::selectFirst('contact', ['id', 'url', 'name', 'protocol', 'batch', 'network'],
272 ['id' => $item['author-id']]);
273 if (!DBA::isResult($contact) || empty($contact['batch']) ||
274 ($contact['network'] != Protocol::DIASPORA) ||
275 Strings::compareLink($item['parent-author-link'], $item['author-link'])) {
280 foreach ($contacts as $entry) {
281 if ($entry['batch'] == $contact['batch']) {
287 Logger::info('Add participant to receiver list', ['parent' => $item['parent-guid'], 'item' => $item['guid'], 'participant' => $contact['url']]);
288 $contacts[] = $contact;
297 * repairs a signature that was double encoded
299 * The function is unused at the moment. It was copied from the old implementation.
301 * @param string $signature The signature
302 * @param string $handle The handle of the signature owner
303 * @param integer $level This value is only set inside this function to avoid endless loops
305 * @return string the repaired signature
308 private static function repairSignature($signature, $handle = "", $level = 1)
310 if ($signature == "") {
314 if (base64_encode(base64_decode(base64_decode($signature))) == base64_decode($signature)) {
315 $signature = base64_decode($signature);
316 Logger::log("Repaired double encoded signature from Diaspora/Hubzilla handle ".$handle." - level ".$level, Logger::DEBUG);
318 // Do a recursive call to be able to fix even multiple levels
320 $signature = self::repairSignature($signature, $handle, ++$level);
328 * verify the envelope and return the verified data
330 * @param string $envelope The magic envelope
332 * @return string verified data
333 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
334 * @throws \ImagickException
336 private static function verifyMagicEnvelope($envelope)
338 $basedom = XML::parseString($envelope, true);
340 if (!is_object($basedom)) {
341 Logger::log("Envelope is no XML file");
345 $children = $basedom->children('http://salmon-protocol.org/ns/magic-env');
347 if (sizeof($children) == 0) {
348 Logger::log("XML has no children");
354 $data = Strings::base64UrlDecode($children->data);
355 $type = $children->data->attributes()->type[0];
357 $encoding = $children->encoding;
359 $alg = $children->alg;
361 $sig = Strings::base64UrlDecode($children->sig);
362 $key_id = $children->sig->attributes()->key_id[0];
364 $handle = Strings::base64UrlDecode($key_id);
367 $b64url_data = Strings::base64UrlEncode($data);
368 $msg = str_replace(["\n", "\r", " ", "\t"], ["", "", "", ""], $b64url_data);
370 $signable_data = $msg.".".Strings::base64UrlEncode($type).".".Strings::base64UrlEncode($encoding).".".Strings::base64UrlEncode($alg);
373 Logger::log('No author could be decoded. Discarding. Message: ' . $envelope);
377 $key = self::key($handle);
379 Logger::log("Couldn't get a key for handle " . $handle . ". Discarding.");
383 $verify = Crypto::rsaVerify($signable_data, $sig, $key);
385 Logger::log('Message from ' . $handle . ' did not verify. Discarding.');
393 * encrypts data via AES
395 * @param string $key The AES key
396 * @param string $iv The IV (is used for CBC encoding)
397 * @param string $data The data that is to be encrypted
399 * @return string encrypted data
401 private static function aesEncrypt($key, $iv, $data)
403 return openssl_encrypt($data, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
407 * decrypts data via AES
409 * @param string $key The AES key
410 * @param string $iv The IV (is used for CBC encoding)
411 * @param string $encrypted The encrypted data
413 * @return string decrypted data
415 private static function aesDecrypt($key, $iv, $encrypted)
417 return openssl_decrypt($encrypted, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
421 * Decodes incoming Diaspora message in the new format
423 * @param string $raw raw post message
424 * @param string $privKey The private key of the importer
425 * @param boolean $no_exit Don't do an http exit on error
428 * 'message' -> decoded Diaspora XML message
429 * 'author' -> author diaspora handle
430 * 'key' -> author public key (converted to pkcs#8)
431 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
432 * @throws \ImagickException
434 public static function decodeRaw(string $raw, string $privKey = '', bool $no_exit = false)
436 $data = json_decode($raw);
438 // Is it a private post? Then decrypt the outer Salmon
439 if (is_object($data)) {
440 $encrypted_aes_key_bundle = base64_decode($data->aes_key);
441 $ciphertext = base64_decode($data->encrypted_magic_envelope);
443 $outer_key_bundle = '';
444 @openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $privKey);
445 $j_outer_key_bundle = json_decode($outer_key_bundle);
447 if (!is_object($j_outer_key_bundle)) {
448 Logger::log('Outer Salmon did not verify. Discarding.');
452 throw new \Friendica\Network\HTTPException\BadRequestException();
456 $outer_iv = base64_decode($j_outer_key_bundle->iv);
457 $outer_key = base64_decode($j_outer_key_bundle->key);
459 $xml = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
464 $basedom = XML::parseString($xml, true);
466 if (!is_object($basedom)) {
467 Logger::log('Received data does not seem to be an XML. Discarding. '.$xml);
471 throw new \Friendica\Network\HTTPException\BadRequestException();
475 $base = $basedom->children(ActivityNamespace::SALMON_ME);
477 // Not sure if this cleaning is needed
478 $data = str_replace([" ", "\t", "\r", "\n"], ["", "", "", ""], $base->data);
480 // Build the signed data
481 $type = $base->data[0]->attributes()->type[0];
482 $encoding = $base->encoding;
484 $signed_data = $data.'.'.Strings::base64UrlEncode($type).'.'.Strings::base64UrlEncode($encoding).'.'.Strings::base64UrlEncode($alg);
486 // This is the signature
487 $signature = Strings::base64UrlDecode($base->sig);
489 // Get the senders' public key
490 $key_id = $base->sig[0]->attributes()->key_id[0];
491 $author_addr = base64_decode($key_id);
492 if ($author_addr == '') {
493 Logger::log('No author could be decoded. Discarding. Message: ' . $xml);
497 throw new \Friendica\Network\HTTPException\BadRequestException();
501 $key = self::key($author_addr);
503 Logger::log("Couldn't get a key for handle " . $author_addr . ". Discarding.");
507 throw new \Friendica\Network\HTTPException\BadRequestException();
511 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
513 Logger::log('Message did not verify. Discarding.');
517 throw new \Friendica\Network\HTTPException\BadRequestException();
521 return ['message' => (string)Strings::base64UrlDecode($base->data),
522 'author' => XML::unescape($author_addr),
523 'key' => (string)$key];
527 * Decodes incoming Diaspora message in the deprecated format
529 * @param string $xml urldecoded Diaspora salmon
530 * @param string $privKey The private key of the importer
533 * 'message' -> decoded Diaspora XML message
534 * 'author' -> author diaspora handle
535 * 'key' -> author public key (converted to pkcs#8)
536 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
537 * @throws \ImagickException
539 public static function decode(string $xml, string $privKey = '')
542 $basedom = XML::parseString($xml);
544 if (!is_object($basedom)) {
545 Logger::log("XML is not parseable.");
548 $children = $basedom->children('https://joindiaspora.com/protocol');
550 $inner_aes_key = null;
553 if ($children->header) {
555 $author_link = str_replace('acct:', '', $children->header->author_id);
557 // This happens with posts from a relais
558 if (empty($privKey)) {
559 Logger::log("This is no private post in the old format", Logger::DEBUG);
563 $encrypted_header = json_decode(base64_decode($children->encrypted_header));
565 $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
566 $ciphertext = base64_decode($encrypted_header->ciphertext);
568 $outer_key_bundle = '';
569 openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $privKey);
571 $j_outer_key_bundle = json_decode($outer_key_bundle);
573 $outer_iv = base64_decode($j_outer_key_bundle->iv);
574 $outer_key = base64_decode($j_outer_key_bundle->key);
576 $decrypted = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
578 Logger::log('decrypted: '.$decrypted, Logger::DEBUG);
579 $idom = XML::parseString($decrypted);
581 $inner_iv = base64_decode($idom->iv);
582 $inner_aes_key = base64_decode($idom->aes_key);
584 $author_link = str_replace('acct:', '', $idom->author_id);
587 $dom = $basedom->children(ActivityNamespace::SALMON_ME);
589 // figure out where in the DOM tree our data is hiding
592 if ($dom->provenance->data) {
593 $base = $dom->provenance;
594 } elseif ($dom->env->data) {
596 } elseif ($dom->data) {
601 Logger::log('unable to locate salmon data in xml');
602 throw new \Friendica\Network\HTTPException\BadRequestException();
606 // Stash the signature away for now. We have to find their key or it won't be good for anything.
607 $signature = Strings::base64UrlDecode($base->sig);
611 // strip whitespace so our data element will return to one big base64 blob
612 $data = str_replace([" ", "\t", "\r", "\n"], ["", "", "", ""], $base->data);
615 // stash away some other stuff for later
617 $type = $base->data[0]->attributes()->type[0];
618 $keyhash = $base->sig[0]->attributes()->keyhash[0];
619 $encoding = $base->encoding;
623 $signed_data = $data.'.'.Strings::base64UrlEncode($type).'.'.Strings::base64UrlEncode($encoding).'.'.Strings::base64UrlEncode($alg);
627 $data = Strings::base64UrlDecode($data);
631 $inner_decrypted = $data;
633 // Decode the encrypted blob
634 $inner_encrypted = base64_decode($data);
635 $inner_decrypted = self::aesDecrypt($inner_aes_key, $inner_iv, $inner_encrypted);
639 Logger::log('Could not retrieve author URI.');
640 throw new \Friendica\Network\HTTPException\BadRequestException();
642 // Once we have the author URI, go to the web and try to find their public key
643 // (first this will look it up locally if it is in the fcontact cache)
644 // This will also convert diaspora public key from pkcs#1 to pkcs#8
646 Logger::log('Fetching key for '.$author_link);
647 $key = self::key($author_link);
650 Logger::log('Could not retrieve author key.');
651 throw new \Friendica\Network\HTTPException\BadRequestException();
654 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
657 Logger::log('Message did not verify. Discarding.');
658 throw new \Friendica\Network\HTTPException\BadRequestException();
661 Logger::log('Message verified.');
663 return ['message' => (string)$inner_decrypted,
664 'author' => XML::unescape($author_link),
665 'key' => (string)$key];
670 * Dispatches public messages and find the fitting receivers
672 * @param array $msg The post that will be dispatched
674 * @return int The message id of the generated message, "true" or "false" if there was an error
675 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
676 * @throws \ImagickException
678 public static function dispatchPublic($msg)
680 $enabled = intval(DI::config()->get("system", "diaspora_enabled"));
682 Logger::log("diaspora is disabled");
686 if (!($fields = self::validPosting($msg))) {
687 Logger::log("Invalid posting");
691 $importer = ["uid" => 0, "page-flags" => User::PAGE_FLAGS_FREELOVE];
692 $success = self::dispatch($importer, $msg, $fields);
698 * Dispatches the different message types to the different functions
700 * @param array $importer Array of the importer user
701 * @param array $msg The post that will be dispatched
702 * @param SimpleXMLElement $fields SimpleXML object that contains the message
704 * @return int The message id of the generated message, "true" or "false" if there was an error
705 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
706 * @throws \ImagickException
708 public static function dispatch(array $importer, $msg, SimpleXMLElement $fields = null)
710 // The sender is the handle of the contact that sent the message.
711 // This will often be different with relayed messages (for example "like" and "comment")
712 $sender = $msg["author"];
714 // This is only needed for private postings since this is already done for public ones before
715 if (is_null($fields)) {
717 if (!($fields = self::validPosting($msg))) {
718 Logger::log("Invalid posting");
725 $type = $fields->getName();
727 Logger::log("Received message type ".$type." from ".$sender." for user ".$importer["uid"], Logger::DEBUG);
730 case "account_migration":
732 Logger::log('Message with type ' . $type . ' is not private, quitting.');
735 return self::receiveAccountMigration($importer, $fields);
737 case "account_deletion":
738 return self::receiveAccountDeletion($fields);
741 return self::receiveComment($importer, $sender, $fields, $msg["message"]);
745 Logger::log('Message with type ' . $type . ' is not private, quitting.');
748 return self::receiveContactRequest($importer, $fields);
752 Logger::log('Message with type ' . $type . ' is not private, quitting.');
755 return self::receiveConversation($importer, $msg, $fields);
758 return self::receiveLike($importer, $sender, $fields);
762 Logger::log('Message with type ' . $type . ' is not private, quitting.');
765 return self::receiveMessage($importer, $fields);
767 case "participation":
769 Logger::log('Message with type ' . $type . ' is not private, quitting.');
772 return self::receiveParticipation($importer, $fields);
774 case "photo": // Not implemented
775 return self::receivePhoto($importer, $fields);
777 case "poll_participation": // Not implemented
778 return self::receivePollParticipation($importer, $fields);
782 Logger::log('Message with type ' . $type . ' is not private, quitting.');
785 return self::receiveProfile($importer, $fields);
788 return self::receiveReshare($importer, $fields, $msg["message"]);
791 return self::receiveRetraction($importer, $sender, $fields);
793 case "status_message":
794 return self::receiveStatusMessage($importer, $fields, $msg["message"]);
797 Logger::log("Unknown message type ".$type);
803 * Checks if a posting is valid and fetches the data fields.
805 * This function does not only check the signature.
806 * It also does the conversion between the old and the new diaspora format.
808 * @param array $msg Array with the XML, the sender handle and the sender signature
810 * @return bool|SimpleXMLElement If the posting is valid then an array with an SimpleXML object is returned
811 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
812 * @throws \ImagickException
814 private static function validPosting($msg)
816 $data = XML::parseString($msg["message"]);
818 if (!is_object($data)) {
819 Logger::log("No valid XML ".$msg["message"], Logger::DEBUG);
823 // Is this the new or the old version?
824 if ($data->getName() == "XML") {
826 foreach ($data->post->children() as $child) {
834 $type = $element->getName();
837 Logger::log("Got message type ".$type.": ".$msg["message"], Logger::DATA);
839 // All retractions are handled identically from now on.
840 // In the new version there will only be "retraction".
841 if (in_array($type, ["signed_retraction", "relayable_retraction"]))
842 $type = "retraction";
844 if ($type == "request") {
848 $fields = new SimpleXMLElement("<".$type."/>");
851 $author_signature = null;
852 $parent_author_signature = null;
854 foreach ($element->children() as $fieldname => $entry) {
856 // Translation for the old XML structure
857 if ($fieldname == "diaspora_handle") {
858 $fieldname = "author";
860 if ($fieldname == "participant_handles") {
861 $fieldname = "participants";
863 if (in_array($type, ["like", "participation"])) {
864 if ($fieldname == "target_type") {
865 $fieldname = "parent_type";
868 if ($fieldname == "sender_handle") {
869 $fieldname = "author";
871 if ($fieldname == "recipient_handle") {
872 $fieldname = "recipient";
874 if ($fieldname == "root_diaspora_id") {
875 $fieldname = "root_author";
877 if ($type == "status_message") {
878 if ($fieldname == "raw_message") {
882 if ($type == "retraction") {
883 if ($fieldname == "post_guid") {
884 $fieldname = "target_guid";
886 if ($fieldname == "type") {
887 $fieldname = "target_type";
892 if (($fieldname == "author_signature") && ($entry != "")) {
893 $author_signature = base64_decode($entry);
894 } elseif (($fieldname == "parent_author_signature") && ($entry != "")) {
895 $parent_author_signature = base64_decode($entry);
896 } elseif (!in_array($fieldname, ["author_signature", "parent_author_signature", "target_author_signature"])) {
897 if ($signed_data != "") {
901 $signed_data .= $entry;
903 if (!in_array($fieldname, ["parent_author_signature", "target_author_signature"])
904 || ($orig_type == "relayable_retraction")
906 XML::copy($entry, $fields, $fieldname);
910 // This is something that shouldn't happen at all.
911 if (in_array($type, ["status_message", "reshare", "profile"])) {
912 if ($msg["author"] != $fields->author) {
913 Logger::log("Message handle is not the same as envelope sender. Quitting this message.");
918 // Only some message types have signatures. So we quit here for the other types.
919 if (!in_array($type, ["comment", "like"])) {
922 // No author_signature? This is a must, so we quit.
923 if (!isset($author_signature)) {
924 Logger::log("No author signature for type ".$type." - Message: ".$msg["message"], Logger::DEBUG);
928 if (isset($parent_author_signature)) {
929 $key = self::key($msg["author"]);
931 Logger::log("No key found for parent author ".$msg["author"], Logger::DEBUG);
935 if (!Crypto::rsaVerify($signed_data, $parent_author_signature, $key, "sha256")) {
936 Logger::log("No valid parent author signature for parent author ".$msg["author"]. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$parent_author_signature, Logger::DEBUG);
941 $key = self::key($fields->author);
943 Logger::log("No key found for author ".$fields->author, Logger::DEBUG);
947 if (!Crypto::rsaVerify($signed_data, $author_signature, $key, "sha256")) {
948 Logger::log("No valid author signature for author ".$fields->author. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$author_signature, Logger::DEBUG);
956 * Fetches the public key for a given handle
958 * @param string $handle The handle
960 * @return string The public key
961 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
962 * @throws \ImagickException
964 private static function key($handle)
966 $handle = strval($handle);
968 Logger::log("Fetching diaspora key for: ".$handle);
970 $r = self::personByHandle($handle);
979 * Fetches data for a given handle
981 * @param string $handle The handle
982 * @param boolean $update true = always update, false = never update, null = update when not found or outdated
984 * @return array the queried data
985 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
986 * @throws \ImagickException
988 public static function personByHandle($handle, $update = null)
990 $person = DBA::selectFirst('fcontact', [], ['network' => Protocol::DIASPORA, 'addr' => $handle]);
991 if (!DBA::isResult($person)) {
992 $urls = [$handle, str_replace('http://', 'https://', $handle), Strings::normaliseLink($handle)];
993 $person = DBA::selectFirst('fcontact', [], ['network' => Protocol::DIASPORA, 'url' => $urls]);
996 if (DBA::isResult($person)) {
997 Logger::debug("In cache " . print_r($person, true));
999 if (is_null($update)) {
1000 // update record occasionally so it doesn't get stale
1001 $d = strtotime($person["updated"]." +00:00");
1002 if ($d < strtotime("now - 14 days")) {
1006 if ($person["guid"] == "") {
1010 } elseif (is_null($update)) {
1011 $update = !DBA::isResult($person);
1017 Logger::log("create or refresh", Logger::DEBUG);
1018 $r = Probe::uri($handle, Protocol::DIASPORA);
1020 // Note that Friendica contacts will return a "Diaspora person"
1021 // if Diaspora connectivity is enabled on their server
1022 if ($r && ($r["network"] === Protocol::DIASPORA)) {
1023 self::updateFContact($r);
1025 $person = self::personByHandle($handle, false);
1033 * Updates the fcontact table
1035 * @param array $arr The fcontact data
1036 * @throws \Exception
1038 private static function updateFContact($arr)
1040 $fields = ['name' => $arr["name"], 'photo' => $arr["photo"],
1041 'request' => $arr["request"], 'nick' => $arr["nick"],
1042 'addr' => strtolower($arr["addr"]), 'guid' => $arr["guid"],
1043 'batch' => $arr["batch"], 'notify' => $arr["notify"],
1044 'poll' => $arr["poll"], 'confirm' => $arr["confirm"],
1045 'alias' => $arr["alias"], 'pubkey' => $arr["pubkey"],
1046 'updated' => DateTimeFormat::utcNow()];
1048 $condition = ['url' => $arr["url"], 'network' => $arr["network"]];
1050 DBA::update('fcontact', $fields, $condition, true);
1054 * get a handle (user@domain.tld) from a given contact id
1056 * @param int $contact_id The id in the contact table
1057 * @param int $pcontact_id The id in the contact table (Used for the public contact)
1059 * @return string the handle
1060 * @throws \Exception
1062 private static function handleFromContact($contact_id, $pcontact_id = 0)
1066 Logger::log("contact id is ".$contact_id." - pcontact id is ".$pcontact_id, Logger::DEBUG);
1068 if ($pcontact_id != 0) {
1069 $contact = DBA::selectFirst('contact', ['addr'], ['id' => $pcontact_id]);
1071 if (DBA::isResult($contact) && !empty($contact["addr"])) {
1072 return strtolower($contact["addr"]);
1077 "SELECT `network`, `addr`, `self`, `url`, `nick` FROM `contact` WHERE `id` = %d",
1081 if (DBA::isResult($r)) {
1084 Logger::log("contact 'self' = ".$contact['self']." 'url' = ".$contact['url'], Logger::DEBUG);
1086 if ($contact['addr'] != "") {
1087 $handle = $contact['addr'];
1089 $baseurl_start = strpos($contact['url'], '://') + 3;
1090 // allows installations in a subdirectory--not sure how Diaspora will handle
1091 $baseurl_length = strpos($contact['url'], '/profile') - $baseurl_start;
1092 $baseurl = substr($contact['url'], $baseurl_start, $baseurl_length);
1093 $handle = $contact['nick'].'@'.$baseurl;
1097 return strtolower($handle);
1101 * get a url (scheme://domain.tld/u/user) from a given Diaspora*
1104 * @param mixed $fcontact_guid Hexadecimal string guid
1106 * @return string the contact url or null
1107 * @throws \Exception
1109 public static function urlFromContactGuid($fcontact_guid)
1111 Logger::log("fcontact guid is ".$fcontact_guid, Logger::DEBUG);
1114 "SELECT `url` FROM `fcontact` WHERE `url` != '' AND `network` = '%s' AND `guid` = '%s'",
1115 DBA::escape(Protocol::DIASPORA),
1116 DBA::escape($fcontact_guid)
1119 if (DBA::isResult($r)) {
1120 return $r[0]['url'];
1127 * Get a contact id for a given handle
1129 * @todo Move to Friendica\Model\Contact
1131 * @param int $uid The user id
1132 * @param string $handle The handle in the format user@domain.tld
1134 * @return array Contact data
1135 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1136 * @throws \ImagickException
1138 private static function contactByHandle($uid, $handle)
1140 $cid = Contact::getIdForURL($handle, $uid);
1142 Logger::log("Haven't found a contact for user " . $uid . " and handle " . $handle, Logger::DEBUG);
1146 $contact = DBA::selectFirst('contact', [], ['id' => $cid]);
1147 if (!DBA::isResult($contact)) {
1148 // This here shouldn't happen at all
1149 Logger::log("Haven't found a contact for user " . $uid . " and handle " . $handle, Logger::DEBUG);
1157 * Checks if the given contact url does support ActivityPub
1159 * @param string $url profile url
1160 * @param boolean $update true = always update, false = never update, null = update when not found or outdated
1162 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1163 * @throws \ImagickException
1165 public static function isSupportedByContactUrl($url, $update = null)
1167 return !empty(self::personByHandle($url, $update));
1171 * Check if posting is allowed for this contact
1173 * @param array $importer Array of the importer user
1174 * @param array $contact The contact that is checked
1175 * @param bool $is_comment Is the check for a comment?
1177 * @return bool is the contact allowed to post?
1179 private static function postAllow(array $importer, array $contact, $is_comment = false)
1182 * Perhaps we were already sharing with this person. Now they're sharing with us.
1183 * That makes us friends.
1184 * Normally this should have handled by getting a request - but this could get lost
1186 // It is deactivated by now, due to side effects. See issue https://github.com/friendica/friendica/pull/4033
1187 // It is not removed by now. Possibly the code is needed?
1188 //if (!$is_comment && $contact["rel"] == Contact::FOLLOWER && in_array($importer["page-flags"], array(User::PAGE_FLAGS_FREELOVE))) {
1191 // array('rel' => Contact::FRIEND, 'writable' => true),
1192 // array('id' => $contact["id"], 'uid' => $contact["uid"])
1195 // $contact["rel"] = Contact::FRIEND;
1196 // Logger::log("defining user ".$contact["nick"]." as friend");
1199 // Contact server is blocked
1200 if (Network::isUrlBlocked($contact['url'])) {
1202 // We don't seem to like that person
1203 } elseif ($contact["blocked"]) {
1204 // Maybe blocked, don't accept.
1206 // We are following this person?
1207 } elseif (($contact["rel"] == Contact::SHARING) || ($contact["rel"] == Contact::FRIEND)) {
1208 // Yes, then it is fine.
1210 // Is it a post to a community?
1211 } elseif (($contact["rel"] == Contact::FOLLOWER) && in_array($importer["page-flags"], [User::PAGE_FLAGS_COMMUNITY, User::PAGE_FLAGS_PRVGROUP])) {
1214 // Is the message a global user or a comment?
1215 } elseif (($importer["uid"] == 0) || $is_comment) {
1216 // Messages for the global users and comments are always accepted
1224 * Fetches the contact id for a handle and checks if posting is allowed
1226 * @param array $importer Array of the importer user
1227 * @param string $handle The checked handle in the format user@domain.tld
1228 * @param bool $is_comment Is the check for a comment?
1230 * @return array The contact data
1231 * @throws \Exception
1233 private static function allowedContactByHandle(array $importer, $handle, $is_comment = false)
1235 $contact = self::contactByHandle($importer["uid"], $handle);
1237 Logger::log("A Contact for handle ".$handle." and user ".$importer["uid"]." was not found");
1238 // If a contact isn't found, we accept it anyway if it is a comment
1239 if ($is_comment && ($importer["uid"] != 0)) {
1240 return self::contactByHandle(0, $handle);
1241 } elseif ($is_comment) {
1248 if (!self::postAllow($importer, $contact, $is_comment)) {
1249 Logger::log("The handle: ".$handle." is not allowed to post to user ".$importer["uid"]);
1256 * Does the message already exists on the system?
1258 * @param int $uid The user id
1259 * @param string $guid The guid of the message
1261 * @return int|bool message id if the message already was stored into the system - or false.
1262 * @throws \Exception
1264 private static function messageExists($uid, $guid)
1266 $item = Item::selectFirst(['id'], ['uid' => $uid, 'guid' => $guid]);
1267 if (DBA::isResult($item)) {
1268 Logger::log("message ".$guid." already exists for user ".$uid);
1276 * Checks for links to posts in a message
1278 * @param array $item The item array
1281 private static function fetchGuid(array $item)
1283 $expression = "=diaspora://.*?/post/([0-9A-Za-z\-_@.:]{15,254}[0-9A-Za-z])=ism";
1284 preg_replace_callback(
1286 function ($match) use ($item) {
1287 self::fetchGuidSub($match, $item);
1292 preg_replace_callback(
1293 "&\[url=/?posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
1294 function ($match) use ($item) {
1295 self::fetchGuidSub($match, $item);
1302 * Checks for relative /people/* links in an item body to match local
1303 * contacts or prepends the remote host taken from the author link.
1305 * @param string $body The item body to replace links from
1306 * @param string $author_link The author link for missing local contact fallback
1308 * @return string the replaced string
1310 public static function replacePeopleGuid($body, $author_link)
1312 $return = preg_replace_callback(
1313 "&\[url=/people/([^\[\]]*)\](.*)\[\/url\]&Usi",
1314 function ($match) use ($author_link) {
1316 // 0 => '[url=/people/0123456789abcdef]Foo Bar[/url]'
1317 // 1 => '0123456789abcdef'
1319 $handle = self::urlFromContactGuid($match[1]);
1322 $return = '@[url='.$handle.']'.$match[2].'[/url]';
1324 // No local match, restoring absolute remote URL from author scheme and host
1325 $author_url = parse_url($author_link);
1326 $return = '[url='.$author_url['scheme'].'://'.$author_url['host'].'/people/'.$match[1].']'.$match[2].'[/url]';
1338 * sub function of "fetchGuid" which checks for links in messages
1340 * @param array $match array containing a link that has to be checked for a message link
1341 * @param array $item The item array
1343 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1344 * @throws \ImagickException
1346 private static function fetchGuidSub($match, $item)
1348 if (!self::storeByGuid($match[1], $item["author-link"])) {
1349 self::storeByGuid($match[1], $item["owner-link"]);
1354 * Fetches an item with a given guid from a given server
1356 * @param string $guid the message guid
1357 * @param string $server The server address
1358 * @param int $uid The user id of the user
1360 * @return int the message id of the stored message or false
1361 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1362 * @throws \ImagickException
1364 private static function storeByGuid($guid, $server, $uid = 0)
1366 $serverparts = parse_url($server);
1368 if (empty($serverparts["host"]) || empty($serverparts["scheme"])) {
1372 $server = $serverparts["scheme"]."://".$serverparts["host"];
1374 Logger::log("Trying to fetch item ".$guid." from ".$server, Logger::DEBUG);
1376 $msg = self::message($guid, $server);
1382 Logger::log("Successfully fetched item ".$guid." from ".$server, Logger::DEBUG);
1384 // Now call the dispatcher
1385 return self::dispatchPublic($msg);
1389 * Fetches a message from a server
1391 * @param string $guid message guid
1392 * @param string $server The url of the server
1393 * @param int $level Endless loop prevention
1396 * 'message' => The message XML
1397 * 'author' => The author handle
1398 * 'key' => The public key of the author
1399 * @throws \Exception
1401 private static function message($guid, $server, $level = 0)
1407 // This will work for new Diaspora servers and Friendica servers from 3.5
1408 $source_url = $server."/fetch/post/".urlencode($guid);
1410 Logger::log("Fetch post from ".$source_url, Logger::DEBUG);
1412 $envelope = Network::fetchUrl($source_url);
1414 Logger::log("Envelope was fetched.", Logger::DEBUG);
1415 $x = self::verifyMagicEnvelope($envelope);
1417 Logger::log("Envelope could not be verified.", Logger::DEBUG);
1419 Logger::log("Envelope was verified.", Logger::DEBUG);
1429 $source_xml = XML::parseString($x);
1431 if (!is_object($source_xml)) {
1435 if ($source_xml->post->reshare) {
1436 // Reshare of a reshare - old Diaspora version
1437 Logger::log("Message is a reshare", Logger::DEBUG);
1438 return self::message($source_xml->post->reshare->root_guid, $server, ++$level);
1439 } elseif ($source_xml->getName() == "reshare") {
1440 // Reshare of a reshare - new Diaspora version
1441 Logger::log("Message is a new reshare", Logger::DEBUG);
1442 return self::message($source_xml->root_guid, $server, ++$level);
1447 // Fetch the author - for the old and the new Diaspora version
1448 if ($source_xml->post->status_message && $source_xml->post->status_message->diaspora_handle) {
1449 $author = (string)$source_xml->post->status_message->diaspora_handle;
1450 } elseif ($source_xml->author && ($source_xml->getName() == "status_message")) {
1451 $author = (string)$source_xml->author;
1454 // If this isn't a "status_message" then quit
1456 Logger::log("Message doesn't seem to be a status message", Logger::DEBUG);
1460 $msg = ["message" => $x, "author" => $author];
1462 $msg["key"] = self::key($msg["author"]);
1468 * Fetches an item with a given URL
1470 * @param string $url the message url
1472 * @return int the message id of the stored message or false
1473 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1474 * @throws \ImagickException
1476 public static function fetchByURL($url, $uid = 0)
1478 // Check for Diaspora (and Friendica) typical paths
1479 if (!preg_match("=(https?://.+)/(?:posts|display|objects)/([a-zA-Z0-9-_@.:%]+[a-zA-Z0-9])=i", $url, $matches)) {
1480 Logger::info('Invalid url', ['url' => $url]);
1484 $guid = urldecode($matches[2]);
1486 $item = Item::selectFirst(['id'], ['guid' => $guid, 'uid' => $uid]);
1487 if (DBA::isResult($item)) {
1488 Logger::info('Found', ['id' => $item['id']]);
1492 Logger::info('Fetch GUID from origin', ['guid' => $guid, 'server' => $matches[1]]);
1493 $ret = self::storeByGuid($guid, $matches[1], $uid);
1494 Logger::info('Result', ['ret' => $ret]);
1496 $item = Item::selectFirst(['id'], ['guid' => $guid, 'uid' => $uid]);
1497 if (DBA::isResult($item)) {
1498 Logger::info('Found', ['id' => $item['id']]);
1501 Logger::info('Not found', ['guid' => $guid, 'uid' => $uid]);
1507 * Fetches the item record of a given guid
1509 * @param int $uid The user id
1510 * @param string $guid message guid
1511 * @param string $author The handle of the item
1512 * @param array $contact The contact of the item owner
1514 * @return array the item record
1515 * @throws \Exception
1517 private static function parentItem($uid, $guid, $author, array $contact)
1519 $fields = ['id', 'parent', 'body', 'wall', 'uri', 'guid', 'private', 'origin',
1520 'author-name', 'author-link', 'author-avatar', 'gravity',
1521 'owner-name', 'owner-link', 'owner-avatar'];
1522 $condition = ['uid' => $uid, 'guid' => $guid];
1523 $item = Item::selectFirst($fields, $condition);
1525 if (!DBA::isResult($item)) {
1526 $person = self::personByHandle($author);
1527 $result = self::storeByGuid($guid, $person["url"], $uid);
1529 // We don't have an url for items that arrived at the public dispatcher
1530 if (!$result && !empty($contact["url"])) {
1531 $result = self::storeByGuid($guid, $contact["url"], $uid);
1535 Logger::log("Fetched missing item ".$guid." - result: ".$result, Logger::DEBUG);
1537 $item = Item::selectFirst($fields, $condition);
1541 if (!DBA::isResult($item)) {
1542 Logger::log("parent item not found: parent: ".$guid." - user: ".$uid);
1545 Logger::log("parent item found: parent: ".$guid." - user: ".$uid);
1551 * returns contact details
1553 * @param array $def_contact The default contact if the person isn't found
1554 * @param array $person The record of the person
1555 * @param int $uid The user id
1558 * 'cid' => contact id
1559 * 'network' => network type
1560 * @throws \Exception
1562 private static function authorContactByUrl($def_contact, $person, $uid)
1564 $condition = ['nurl' => Strings::normaliseLink($person["url"]), 'uid' => $uid];
1565 $contact = DBA::selectFirst('contact', ['id', 'network'], $condition);
1566 if (DBA::isResult($contact)) {
1567 $cid = $contact["id"];
1568 $network = $contact["network"];
1570 $cid = $def_contact["id"];
1571 $network = Protocol::DIASPORA;
1574 return ["cid" => $cid, "network" => $network];
1578 * Is the profile a hubzilla profile?
1580 * @param string $url The profile link
1582 * @return bool is it a hubzilla server?
1584 private static function isHubzilla($url)
1586 return(strstr($url, '/channel/'));
1590 * Generate a post link with a given handle and message guid
1592 * @param string $addr The user handle
1593 * @param string $guid message guid
1594 * @param string $parent_guid optional parent guid
1596 * @return string the post link
1597 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1598 * @throws \ImagickException
1600 private static function plink($addr, $guid, $parent_guid = '')
1602 $contact = Contact::getDetailsByAddr($addr);
1603 if (empty($contact)) {
1604 Logger::info('No contact data for address', ['addr' => $addr]);
1608 if (empty($contact['baseurl'])) {
1609 $contact['baseurl'] = 'https://' . substr($addr, strpos($addr, '@') + 1);
1610 Logger::info('Create baseurl from address', ['baseurl' => $contact['baseurl'], 'url' => $contact['url']]);
1614 $gserver = DBA::selectFirst('gserver', ['platform'], ['nurl' => Strings::normaliseLink($contact['baseurl'])]);
1615 if (!empty($gserver['platform'])) {
1616 $platform = strtolower($gserver['platform']);
1617 Logger::info('Detected platform', ['platform' => $platform, 'url' => $contact['url']]);
1620 if (!in_array($platform, ['diaspora', 'friendica', 'hubzilla', 'socialhome'])) {
1621 if (self::isHubzilla($contact['url'])) {
1622 Logger::info('Detected unknown platform as Hubzilla', ['platform' => $platform, 'url' => $contact['url']]);
1623 $platform = 'hubzilla';
1624 } elseif ($contact['network'] == Protocol::DFRN) {
1625 Logger::info('Detected unknown platform as Friendica', ['platform' => $platform, 'url' => $contact['url']]);
1626 $platform = 'friendica';
1630 if ($platform == 'friendica') {
1631 return str_replace('/profile/' . $contact['nick'] . '/', '/display/' . $guid, $contact['url'] . '/');
1634 if ($platform == 'hubzilla') {
1635 return $contact['baseurl'] . '/item/' . $guid;
1638 if ($platform == 'socialhome') {
1639 return $contact['baseurl'] . '/content/' . $guid;
1642 if ($platform != 'diaspora') {
1643 Logger::info('Unknown platform', ['platform' => $platform, 'url' => $contact['url']]);
1647 if ($parent_guid != '') {
1648 return $contact['baseurl'] . '/posts/' . $parent_guid . '#' . $guid;
1650 return $contact['baseurl'] . '/posts/' . $guid;
1655 * Receives account migration
1657 * @param array $importer Array of the importer user
1658 * @param object $data The message object
1660 * @return bool Success
1661 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1662 * @throws \ImagickException
1664 private static function receiveAccountMigration(array $importer, $data)
1666 $old_handle = Strings::escapeTags(XML::unescape($data->author));
1667 $new_handle = Strings::escapeTags(XML::unescape($data->profile->author));
1668 $signature = Strings::escapeTags(XML::unescape($data->signature));
1670 $contact = self::contactByHandle($importer["uid"], $old_handle);
1672 Logger::log("cannot find contact for sender: ".$old_handle." and user ".$importer["uid"]);
1676 Logger::log("Got migration for ".$old_handle.", to ".$new_handle." with user ".$importer["uid"]);
1679 $signed_text = 'AccountMigration:'.$old_handle.':'.$new_handle;
1680 $key = self::key($old_handle);
1681 if (!Crypto::rsaVerify($signed_text, $signature, $key, "sha256")) {
1682 Logger::log('No valid signature for migration.');
1686 // Update the profile
1687 self::receiveProfile($importer, $data->profile);
1689 // change the technical stuff in contact and gcontact
1690 $data = Probe::uri($new_handle);
1691 if ($data['network'] == Protocol::PHANTOM) {
1692 Logger::log('Account for '.$new_handle." couldn't be probed.");
1696 $fields = ['url' => $data['url'], 'nurl' => Strings::normaliseLink($data['url']),
1697 'name' => $data['name'], 'nick' => $data['nick'],
1698 'addr' => $data['addr'], 'batch' => $data['batch'],
1699 'notify' => $data['notify'], 'poll' => $data['poll'],
1700 'network' => $data['network']];
1702 DBA::update('contact', $fields, ['addr' => $old_handle]);
1704 $fields = ['url' => $data['url'], 'nurl' => Strings::normaliseLink($data['url']),
1705 'name' => $data['name'], 'nick' => $data['nick'],
1706 'addr' => $data['addr'], 'connect' => $data['addr'],
1707 'notify' => $data['notify'], 'photo' => $data['photo'],
1708 'server_url' => $data['baseurl'], 'network' => $data['network']];
1710 DBA::update('gcontact', $fields, ['addr' => $old_handle]);
1712 Logger::log('Contacts are updated.');
1718 * Processes an account deletion
1720 * @param object $data The message object
1722 * @return bool Success
1723 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1725 private static function receiveAccountDeletion($data)
1727 $author = Strings::escapeTags(XML::unescape($data->author));
1729 $contacts = DBA::select('contact', ['id'], ['addr' => $author]);
1730 while ($contact = DBA::fetch($contacts)) {
1731 Contact::remove($contact["id"]);
1733 DBA::close($contacts);
1735 DBA::delete('gcontact', ['addr' => $author]);
1737 Logger::log('Removed contacts for ' . $author);
1743 * Fetch the uri from our database if we already have this item (maybe from ourselves)
1745 * @param string $author Author handle
1746 * @param string $guid Message guid
1747 * @param boolean $onlyfound Only return uri when found in the database
1749 * @return string The constructed uri or the one from our database
1750 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1751 * @throws \ImagickException
1753 private static function getUriFromGuid($author, $guid, $onlyfound = false)
1755 $item = Item::selectFirst(['uri'], ['guid' => $guid]);
1756 if (DBA::isResult($item)) {
1757 return $item["uri"];
1758 } elseif (!$onlyfound) {
1759 $person = self::personByHandle($author);
1761 $parts = parse_url($person['url']);
1762 unset($parts['path']);
1763 $host_url = Network::unparseURL($parts);
1765 return $host_url . '/objects/' . $guid;
1772 * Fetch the guid from our database with a given uri
1774 * @param string $uri Message uri
1775 * @param string $uid Author handle
1777 * @return string The post guid
1778 * @throws \Exception
1780 private static function getGuidFromUri($uri, $uid)
1782 $item = Item::selectFirst(['guid'], ['uri' => $uri, 'uid' => $uid]);
1783 if (DBA::isResult($item)) {
1784 return $item["guid"];
1791 * Find the best importer for a comment, like, ...
1793 * @param string $guid The guid of the item
1795 * @return array|boolean the origin owner of that post - or false
1796 * @throws \Exception
1798 private static function importerForGuid($guid)
1800 $item = Item::selectFirst(['uid'], ['origin' => true, 'guid' => $guid]);
1801 if (DBA::isResult($item)) {
1802 Logger::log("Found user ".$item['uid']." as owner of item ".$guid, Logger::DEBUG);
1803 $contact = DBA::selectFirst('contact', [], ['self' => true, 'uid' => $item['uid']]);
1804 if (DBA::isResult($contact)) {
1812 * Store the mentions in the tag table
1814 * @param integer $uriid
1815 * @param string $text
1817 private static function storeMentions(int $uriid, string $text)
1819 preg_match_all('/([@!]){(?:([^}]+?); ?)?([^} ]+)}/', $text, $matches, PREG_SET_ORDER);
1820 if (empty($matches)) {
1825 * Matching values for the preg match
1826 * [1] = mention type (@ or !)
1827 * [2] = name (optional)
1831 foreach ($matches as $match) {
1832 if (empty($match)) {
1836 $person = self::personByHandle($match[3]);
1837 if (empty($person)) {
1841 Tag::storeByHash($uriid, $match[1], $person['name'] ?: $person['nick'], $person['url']);
1846 * Processes an incoming comment
1848 * @param array $importer Array of the importer user
1849 * @param string $sender The sender of the message
1850 * @param object $data The message object
1851 * @param string $xml The original XML of the message
1853 * @return int The message id of the generated comment or "false" if there was an error
1854 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1855 * @throws \ImagickException
1857 private static function receiveComment(array $importer, $sender, $data, $xml)
1859 $author = Strings::escapeTags(XML::unescape($data->author));
1860 $guid = Strings::escapeTags(XML::unescape($data->guid));
1861 $parent_guid = Strings::escapeTags(XML::unescape($data->parent_guid));
1862 $text = XML::unescape($data->text);
1864 if (isset($data->created_at)) {
1865 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
1867 $created_at = DateTimeFormat::utcNow();
1870 if (isset($data->thread_parent_guid)) {
1871 $thread_parent_guid = Strings::escapeTags(XML::unescape($data->thread_parent_guid));
1872 $thr_uri = self::getUriFromGuid("", $thread_parent_guid, true);
1877 $contact = self::allowedContactByHandle($importer, $sender, true);
1882 $message_id = self::messageExists($importer["uid"], $guid);
1887 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
1888 if (!$parent_item) {
1892 $person = self::personByHandle($author);
1893 if (!is_array($person)) {
1894 Logger::log("unable to find author details");
1898 // Fetch the contact id - if we know this contact
1899 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
1903 $datarray["uid"] = $importer["uid"];
1904 $datarray["contact-id"] = $author_contact["cid"];
1905 $datarray["network"] = $author_contact["network"];
1907 $datarray["author-link"] = $person["url"];
1908 $datarray["author-id"] = Contact::getIdForURL($person["url"], 0);
1910 $datarray["owner-link"] = $contact["url"];
1911 $datarray["owner-id"] = Contact::getIdForURL($contact["url"], 0);
1913 $datarray["guid"] = $guid;
1914 $datarray["uri"] = self::getUriFromGuid($author, $guid);
1915 $datarray['uri-id'] = ItemURI::insert(['uri' => $datarray['uri'], 'guid' => $datarray['guid']]);
1917 $datarray["verb"] = Activity::POST;
1918 $datarray["gravity"] = GRAVITY_COMMENT;
1920 if ($thr_uri != "") {
1921 $datarray["parent-uri"] = $thr_uri;
1923 $datarray["parent-uri"] = $parent_item["uri"];
1926 $datarray["object-type"] = Activity\ObjectType::COMMENT;
1928 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
1929 $datarray["source"] = $xml;
1931 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
1933 $datarray["plink"] = self::plink($author, $guid, $parent_item['guid']);
1934 $body = Markdown::toBBCode($text);
1936 $datarray["body"] = self::replacePeopleGuid($body, $person["url"]);
1938 self::storeMentions($datarray['uri-id'], $text);
1939 Tag::storeRawTagsFromBody($datarray['uri-id'], $datarray["body"]);
1941 self::fetchGuid($datarray);
1943 // If we are the origin of the parent we store the original data.
1944 // We notify our followers during the item storage.
1945 if ($parent_item["origin"]) {
1946 $datarray['diaspora_signed_text'] = json_encode($data);
1949 $message_id = Item::insert($datarray);
1951 if ($message_id <= 0) {
1956 Logger::log("Stored comment ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
1957 if ($datarray['uid'] == 0) {
1958 Item::distribute($message_id, json_encode($data));
1966 * processes and stores private messages
1968 * @param array $importer Array of the importer user
1969 * @param array $contact The contact of the message
1970 * @param object $data The message object
1971 * @param array $msg Array of the processed message, author handle and key
1972 * @param object $mesg The private message
1973 * @param array $conversation The conversation record to which this message belongs
1975 * @return bool "true" if it was successful
1976 * @throws \Exception
1978 private static function receiveConversationMessage(array $importer, array $contact, $data, $msg, $mesg, $conversation)
1980 $author = Strings::escapeTags(XML::unescape($data->author));
1981 $guid = Strings::escapeTags(XML::unescape($data->guid));
1982 $subject = Strings::escapeTags(XML::unescape($data->subject));
1984 // "diaspora_handle" is the element name from the old version
1985 // "author" is the element name from the new version
1986 if ($mesg->author) {
1987 $msg_author = Strings::escapeTags(XML::unescape($mesg->author));
1988 } elseif ($mesg->diaspora_handle) {
1989 $msg_author = Strings::escapeTags(XML::unescape($mesg->diaspora_handle));
1994 $msg_guid = Strings::escapeTags(XML::unescape($mesg->guid));
1995 $msg_conversation_guid = Strings::escapeTags(XML::unescape($mesg->conversation_guid));
1996 $msg_text = XML::unescape($mesg->text);
1997 $msg_created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($mesg->created_at)));
1999 if ($msg_conversation_guid != $guid) {
2000 Logger::log("message conversation guid does not belong to the current conversation.");
2004 $body = Markdown::toBBCode($msg_text);
2005 $message_uri = $msg_author.":".$msg_guid;
2007 $person = self::personByHandle($msg_author);
2009 return Mail::insert([
2010 'uid' => $importer['uid'],
2011 'guid' => $msg_guid,
2012 'convid' => $conversation['id'],
2013 'from-name' => $person['name'],
2014 'from-photo' => $person['photo'],
2015 'from-url' => $person['url'],
2016 'contact-id' => $contact['id'],
2017 'title' => $subject,
2019 'uri' => $message_uri,
2020 'parent-uri' => $author . ':' . $guid,
2021 'created' => $msg_created_at
2026 * Processes new private messages (answers to private messages are processed elsewhere)
2028 * @param array $importer Array of the importer user
2029 * @param array $msg Array of the processed message, author handle and key
2030 * @param object $data The message object
2032 * @return bool Success
2033 * @throws \Exception
2035 private static function receiveConversation(array $importer, $msg, $data)
2037 $author = Strings::escapeTags(XML::unescape($data->author));
2038 $guid = Strings::escapeTags(XML::unescape($data->guid));
2039 $subject = Strings::escapeTags(XML::unescape($data->subject));
2040 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
2041 $participants = Strings::escapeTags(XML::unescape($data->participants));
2043 $messages = $data->message;
2045 if (!count($messages)) {
2046 Logger::log("empty conversation");
2050 $contact = self::allowedContactByHandle($importer, $msg["author"], true);
2055 $conversation = DBA::selectFirst('conv', [], ['uid' => $importer["uid"], 'guid' => $guid]);
2056 if (!DBA::isResult($conversation)) {
2058 "INSERT INTO `conv` (`uid`, `guid`, `creator`, `created`, `updated`, `subject`, `recips`)
2059 VALUES (%d, '%s', '%s', '%s', '%s', '%s', '%s')",
2060 intval($importer["uid"]),
2062 DBA::escape($author),
2063 DBA::escape($created_at),
2064 DBA::escape(DateTimeFormat::utcNow()),
2065 DBA::escape($subject),
2066 DBA::escape($participants)
2069 $conversation = DBA::selectFirst('conv', [], ['uid' => $importer["uid"], 'guid' => $guid]);
2072 if (!$conversation) {
2073 Logger::log("unable to create conversation.");
2077 foreach ($messages as $mesg) {
2078 self::receiveConversationMessage($importer, $contact, $data, $msg, $mesg, $conversation);
2085 * Processes "like" messages
2087 * @param array $importer Array of the importer user
2088 * @param string $sender The sender of the message
2089 * @param object $data The message object
2091 * @return int The message id of the generated like or "false" if there was an error
2092 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2093 * @throws \ImagickException
2095 private static function receiveLike(array $importer, $sender, $data)
2097 $author = Strings::escapeTags(XML::unescape($data->author));
2098 $guid = Strings::escapeTags(XML::unescape($data->guid));
2099 $parent_guid = Strings::escapeTags(XML::unescape($data->parent_guid));
2100 $parent_type = Strings::escapeTags(XML::unescape($data->parent_type));
2101 $positive = Strings::escapeTags(XML::unescape($data->positive));
2103 // likes on comments aren't supported by Diaspora - only on posts
2104 // But maybe this will be supported in the future, so we will accept it.
2105 if (!in_array($parent_type, ["Post", "Comment"])) {
2109 $contact = self::allowedContactByHandle($importer, $sender, true);
2114 $message_id = self::messageExists($importer["uid"], $guid);
2119 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
2120 if (!$parent_item) {
2124 $person = self::personByHandle($author);
2125 if (!is_array($person)) {
2126 Logger::log("unable to find author details");
2130 // Fetch the contact id - if we know this contact
2131 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
2133 // "positive" = "false" would be a Dislike - wich isn't currently supported by Diaspora
2134 // We would accept this anyhow.
2135 if ($positive == "true") {
2136 $verb = Activity::LIKE;
2138 $verb = Activity::DISLIKE;
2143 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
2145 $datarray["uid"] = $importer["uid"];
2146 $datarray["contact-id"] = $author_contact["cid"];
2147 $datarray["network"] = $author_contact["network"];
2149 $datarray["owner-link"] = $datarray["author-link"] = $person["url"];
2150 $datarray["owner-id"] = $datarray["author-id"] = Contact::getIdForURL($person["url"], 0);
2152 $datarray["guid"] = $guid;
2153 $datarray["uri"] = self::getUriFromGuid($author, $guid);
2155 $datarray["verb"] = $verb;
2156 $datarray["gravity"] = GRAVITY_ACTIVITY;
2157 $datarray["parent-uri"] = $parent_item["uri"];
2159 $datarray["object-type"] = Activity\ObjectType::NOTE;
2161 $datarray["body"] = $verb;
2163 // Diaspora doesn't provide a date for likes
2164 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = DateTimeFormat::utcNow();
2166 // like on comments have the comment as parent. So we need to fetch the toplevel parent
2167 if ($parent_item['gravity'] != GRAVITY_PARENT) {
2168 $toplevel = Item::selectFirst(['origin'], ['id' => $parent_item['parent']]);
2169 $origin = $toplevel["origin"];
2171 $origin = $parent_item["origin"];
2174 // If we are the origin of the parent we store the original data.
2175 // We notify our followers during the item storage.
2177 $datarray['diaspora_signed_text'] = json_encode($data);
2180 $message_id = Item::insert($datarray);
2182 if ($message_id <= 0) {
2187 Logger::log("Stored like ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
2188 if ($datarray['uid'] == 0) {
2189 Item::distribute($message_id, json_encode($data));
2197 * Processes private messages
2199 * @param array $importer Array of the importer user
2200 * @param object $data The message object
2202 * @return bool Success?
2203 * @throws \Exception
2205 private static function receiveMessage(array $importer, $data)
2207 $author = Strings::escapeTags(XML::unescape($data->author));
2208 $guid = Strings::escapeTags(XML::unescape($data->guid));
2209 $conversation_guid = Strings::escapeTags(XML::unescape($data->conversation_guid));
2210 $text = XML::unescape($data->text);
2211 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
2213 $contact = self::allowedContactByHandle($importer, $author, true);
2218 $conversation = null;
2220 $condition = ['uid' => $importer["uid"], 'guid' => $conversation_guid];
2221 $conversation = DBA::selectFirst('conv', [], $condition);
2223 if (!DBA::isResult($conversation)) {
2224 Logger::log("conversation not available.");
2228 $message_uri = $author.":".$guid;
2230 $person = self::personByHandle($author);
2232 Logger::log("unable to find author details");
2236 $body = Markdown::toBBCode($text);
2238 $body = self::replacePeopleGuid($body, $person["url"]);
2240 return Mail::insert([
2241 'uid' => $importer['uid'],
2243 'convid' => $conversation['id'],
2244 'from-name' => $person['name'],
2245 'from-photo' => $person['photo'],
2246 'from-url' => $person['url'],
2247 'contact-id' => $contact['id'],
2248 'title' => $conversation['subject'],
2251 'uri' => $message_uri,
2252 'parent-uri' => $author.":".$conversation['guid'],
2253 'created' => $created_at
2258 * Processes participations - unsupported by now
2260 * @param array $importer Array of the importer user
2261 * @param object $data The message object
2263 * @return bool success
2264 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2265 * @throws \ImagickException
2267 private static function receiveParticipation(array $importer, $data)
2269 $author = strtolower(Strings::escapeTags(XML::unescape($data->author)));
2270 $guid = Strings::escapeTags(XML::unescape($data->guid));
2271 $parent_guid = Strings::escapeTags(XML::unescape($data->parent_guid));
2273 $contact = self::allowedContactByHandle($importer, $author, true);
2278 if (self::messageExists($importer["uid"], $guid)) {
2282 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
2283 if (!$parent_item) {
2287 if (!$parent_item['origin']) {
2288 Logger::info('Not our origin. Participation is ignored', ['parent_guid' => $parent_guid, 'guid' => $guid, 'author' => $author]);
2291 if (!in_array($parent_item['private'], [Item::PUBLIC, Item::UNLISTED])) {
2292 Logger::info('Item is not public, participation is ignored', ['parent_guid' => $parent_guid, 'guid' => $guid, 'author' => $author]);
2296 $person = self::personByHandle($author);
2297 if (!is_array($person)) {
2298 Logger::log("Person not found: ".$author);
2302 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
2304 // Store participation
2307 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
2309 $datarray["uid"] = $importer["uid"];
2310 $datarray["contact-id"] = $author_contact["cid"];
2311 $datarray["network"] = $author_contact["network"];
2313 $datarray["owner-link"] = $datarray["author-link"] = $person["url"];
2314 $datarray["owner-id"] = $datarray["author-id"] = Contact::getIdForURL($person["url"], 0);
2316 $datarray["guid"] = $guid;
2317 $datarray["uri"] = self::getUriFromGuid($author, $guid);
2319 $datarray["verb"] = Activity::FOLLOW;
2320 $datarray["gravity"] = GRAVITY_ACTIVITY;
2321 $datarray["parent-uri"] = $parent_item["uri"];
2323 $datarray["object-type"] = Activity\ObjectType::NOTE;
2325 $datarray["body"] = Activity::FOLLOW;
2327 // Diaspora doesn't provide a date for a participation
2328 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = DateTimeFormat::utcNow();
2330 $message_id = Item::insert($datarray);
2332 Logger::info('Participation stored', ['id' => $message_id, 'guid' => $guid, 'parent_guid' => $parent_guid, 'author' => $author]);
2334 // Send all existing comments and likes to the requesting server
2335 $comments = Item::select(['id', 'uri-id', 'parent', 'verb'], ['parent' => $parent_item['id'], 'gravity' => [GRAVITY_COMMENT, GRAVITY_ACTIVITY]]);
2336 while ($comment = Item::fetch($comments)) {
2337 if (in_array($comment["verb"], [Activity::FOLLOW, Activity::TAG])) {
2338 Logger::info('participation messages are not relayed', ['item' => $comment['id']]);
2342 Logger::info('Deliver participation', ['item' => $comment['id'], 'contact' => $author_contact["cid"]]);
2343 if (Worker::add(PRIORITY_HIGH, 'Delivery', Delivery::POST, $comment['id'], $author_contact["cid"])) {
2344 Post\DeliveryData::incrementQueueCount($comment['uri-id'], 1);
2347 DBA::close($comments);
2353 * Processes photos - unneeded
2355 * @param array $importer Array of the importer user
2356 * @param object $data The message object
2358 * @return bool always true
2360 private static function receivePhoto(array $importer, $data)
2362 // There doesn't seem to be a reason for this function,
2363 // since the photo data is transmitted in the status message as well
2368 * Processes poll participations - unssupported
2370 * @param array $importer Array of the importer user
2371 * @param object $data The message object
2373 * @return bool always true
2375 private static function receivePollParticipation(array $importer, $data)
2377 // We don't support polls by now
2382 * Processes incoming profile updates
2384 * @param array $importer Array of the importer user
2385 * @param object $data The message object
2387 * @return bool Success
2388 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2389 * @throws \ImagickException
2391 private static function receiveProfile(array $importer, $data)
2393 $author = strtolower(Strings::escapeTags(XML::unescape($data->author)));
2395 $contact = self::contactByHandle($importer["uid"], $author);
2400 $name = XML::unescape($data->first_name).((strlen($data->last_name)) ? " ".XML::unescape($data->last_name) : "");
2401 $image_url = XML::unescape($data->image_url);
2402 $birthday = XML::unescape($data->birthday);
2403 $about = Markdown::toBBCode(XML::unescape($data->bio));
2404 $location = Markdown::toBBCode(XML::unescape($data->location));
2405 $searchable = (XML::unescape($data->searchable) == "true");
2406 $nsfw = (XML::unescape($data->nsfw) == "true");
2407 $tags = XML::unescape($data->tag_string);
2409 $tags = explode("#", $tags);
2412 foreach ($tags as $tag) {
2413 $tag = trim(strtolower($tag));
2419 $keywords = implode(", ", $keywords);
2421 $handle_parts = explode("@", $author);
2422 $nick = $handle_parts[0];
2425 $name = $handle_parts[0];
2428 if (preg_match("|^https?://|", $image_url) === 0) {
2429 $image_url = "http://".$handle_parts[1].$image_url;
2432 Contact::updateAvatar($image_url, $importer["uid"], $contact["id"]);
2434 // Generic birthday. We don't know the timezone. The year is irrelevant.
2436 $birthday = str_replace("1000", "1901", $birthday);
2438 if ($birthday != "") {
2439 $birthday = DateTimeFormat::utc($birthday, "Y-m-d");
2442 // this is to prevent multiple birthday notifications in a single year
2443 // if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
2445 if (substr($birthday, 5) === substr($contact["bd"], 5)) {
2446 $birthday = $contact["bd"];
2449 $fields = ['name' => $name, 'location' => $location,
2450 'name-date' => DateTimeFormat::utcNow(), 'about' => $about,
2451 'addr' => $author, 'nick' => $nick, 'keywords' => $keywords,
2452 'unsearchable' => !$searchable, 'sensitive' => $nsfw];
2454 if (!empty($birthday)) {
2455 $fields['bd'] = $birthday;
2458 DBA::update('contact', $fields, ['id' => $contact['id']]);
2460 // @todo Update the public contact, then update the gcontact from that
2462 $gcontact = ["url" => $contact["url"], "network" => Protocol::DIASPORA, "generation" => 2,
2463 "photo" => $image_url, "name" => $name, "location" => $location,
2464 "about" => $about, "birthday" => $birthday,
2465 "addr" => $author, "nick" => $nick, "keywords" => $keywords,
2466 "hide" => !$searchable, "nsfw" => $nsfw];
2468 $gcid = GContact::update($gcontact);
2470 GContact::link($gcid, $importer["uid"], $contact["id"]);
2472 Logger::log("Profile of contact ".$contact["id"]." stored for user ".$importer["uid"], Logger::DEBUG);
2478 * Processes incoming friend requests
2480 * @param array $importer Array of the importer user
2481 * @param array $contact The contact that send the request
2483 * @throws \Exception
2485 private static function receiveRequestMakeFriend(array $importer, array $contact)
2487 if ($contact["rel"] == Contact::SHARING) {
2490 ['rel' => Contact::FRIEND, 'writable' => true],
2491 ['id' => $contact["id"], 'uid' => $importer["uid"]]
2497 * Processes incoming sharing notification
2499 * @param array $importer Array of the importer user
2500 * @param object $data The message object
2502 * @return bool Success
2503 * @throws \Exception
2505 private static function receiveContactRequest(array $importer, $data)
2507 $author = XML::unescape($data->author);
2508 $recipient = XML::unescape($data->recipient);
2510 if (!$author || !$recipient) {
2514 // the current protocol version doesn't know these fields
2515 // That means that we will assume their existance
2516 if (isset($data->following)) {
2517 $following = (XML::unescape($data->following) == "true");
2522 if (isset($data->sharing)) {
2523 $sharing = (XML::unescape($data->sharing) == "true");
2528 $contact = self::contactByHandle($importer["uid"], $author);
2530 // perhaps we were already sharing with this person. Now they're sharing with us.
2531 // That makes us friends.
2534 Logger::log("Author ".$author." (Contact ".$contact["id"].") wants to follow us.", Logger::DEBUG);
2535 self::receiveRequestMakeFriend($importer, $contact);
2537 // refetch the contact array
2538 $contact = self::contactByHandle($importer["uid"], $author);
2540 // If we are now friends, we are sending a share message.
2541 // Normally we needn't to do so, but the first message could have been vanished.
2542 if (in_array($contact["rel"], [Contact::FRIEND])) {
2543 $user = DBA::selectFirst('user', [], ['uid' => $importer["uid"]]);
2544 if (DBA::isResult($user)) {
2545 Logger::log("Sending share message to author ".$author." - Contact: ".$contact["id"]." - User: ".$importer["uid"], Logger::DEBUG);
2546 self::sendShare($user, $contact);
2551 Logger::log("Author ".$author." doesn't want to follow us anymore.", Logger::DEBUG);
2552 Contact::removeFollower($importer, $contact);
2557 if (!$following && $sharing && in_array($importer["page-flags"], [User::PAGE_FLAGS_SOAPBOX, User::PAGE_FLAGS_NORMAL])) {
2558 Logger::log("Author ".$author." wants to share with us - but doesn't want to listen. Request is ignored.", Logger::DEBUG);
2560 } elseif (!$following && !$sharing) {
2561 Logger::log("Author ".$author." doesn't want anything - and we don't know the author. Request is ignored.", Logger::DEBUG);
2563 } elseif (!$following && $sharing) {
2564 Logger::log("Author ".$author." wants to share with us.", Logger::DEBUG);
2565 } elseif ($following && $sharing) {
2566 Logger::log("Author ".$author." wants to have a bidirectional conection.", Logger::DEBUG);
2567 } elseif ($following && !$sharing) {
2568 Logger::log("Author ".$author." wants to listen to us.", Logger::DEBUG);
2571 $ret = self::personByHandle($author);
2573 if (!$ret || ($ret["network"] != Protocol::DIASPORA)) {
2574 Logger::log("Cannot resolve diaspora handle ".$author." for ".$recipient);
2578 $cid = Contact::getIdForURL($ret['url'], $importer['uid']);
2580 $contact = DBA::selectFirst('contact', [], ['id' => $cid, 'network' => Protocol::NATIVE_SUPPORT]);
2585 $item = ['author-id' => Contact::getIdForURL($ret['url']),
2586 'author-link' => $ret['url']];
2588 $result = Contact::addRelationship($importer, $contact, $item, false);
2589 if ($result === true) {
2590 $contact_record = self::contactByHandle($importer['uid'], $author);
2591 if (!$contact_record) {
2592 Logger::info('unable to locate newly created contact record.');
2596 $user = DBA::selectFirst('user', [], ['uid' => $importer['uid']]);
2597 if (DBA::isResult($user)) {
2598 self::sendShare($user, $contact_record);
2600 // Send the profile data, maybe it weren't transmitted before
2601 self::sendProfile($importer['uid'], [$contact_record]);
2609 * Fetches a message with a given guid
2611 * @param string $guid message guid
2612 * @param string $orig_author handle of the original post
2613 * @return array The fetched item
2614 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2615 * @throws \ImagickException
2617 public static function originalItem($guid, $orig_author)
2620 Logger::log('Empty guid. Quitting.');
2624 // Do we already have this item?
2625 $fields = ['body', 'title', 'attach', 'app', 'created', 'object-type', 'uri', 'guid',
2626 'author-name', 'author-link', 'author-avatar'];
2627 $condition = ['guid' => $guid, 'visible' => true, 'deleted' => false, 'private' => [Item::PUBLIC, Item::UNLISTED]];
2628 $item = Item::selectFirst($fields, $condition);
2630 if (DBA::isResult($item)) {
2631 Logger::log("reshared message ".$guid." already exists on system.");
2633 // Maybe it is already a reshared item?
2634 // Then refetch the content, if it is a reshare from a reshare.
2635 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2636 if (self::isReshare($item["body"], true)) {
2638 } elseif (self::isReshare($item["body"], false) || strstr($item["body"], "[share")) {
2639 $item["body"] = Markdown::toBBCode(BBCode::toMarkdown($item["body"]));
2641 $item["body"] = self::replacePeopleGuid($item["body"], $item["author-link"]);
2643 // Add OEmbed and other information to the body
2644 $item["body"] = add_page_info_to_body($item["body"], false, true);
2652 if (!DBA::isResult($item)) {
2653 if (empty($orig_author)) {
2654 Logger::log('Empty author for guid ' . $guid . '. Quitting.');
2658 $server = "https://".substr($orig_author, strpos($orig_author, "@") + 1);
2659 Logger::log("1st try: reshared message ".$guid." will be fetched via SSL from the server ".$server);
2660 $stored = self::storeByGuid($guid, $server);
2663 $server = "http://".substr($orig_author, strpos($orig_author, "@") + 1);
2664 Logger::log("2nd try: reshared message ".$guid." will be fetched without SSL from the server ".$server);
2665 $stored = self::storeByGuid($guid, $server);
2669 $fields = ['body', 'title', 'attach', 'app', 'created', 'object-type', 'uri', 'guid',
2670 'author-name', 'author-link', 'author-avatar'];
2671 $condition = ['guid' => $guid, 'visible' => true, 'deleted' => false, 'private' => [Item::PUBLIC, Item::UNLISTED]];
2672 $item = Item::selectFirst($fields, $condition);
2674 if (DBA::isResult($item)) {
2675 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2676 if (self::isReshare($item["body"], false)) {
2677 $item["body"] = Markdown::toBBCode(BBCode::toMarkdown($item["body"]));
2678 $item["body"] = self::replacePeopleGuid($item["body"], $item["author-link"]);
2689 * Stores a reshare activity
2691 * @param array $item Array of reshare post
2692 * @param integer $parent_message_id Id of the parent post
2693 * @param string $guid GUID string of reshare action
2694 * @param string $author Author handle
2696 private static function addReshareActivity($item, $parent_message_id, $guid, $author)
2698 $parent = Item::selectFirst(['uri', 'guid'], ['id' => $parent_message_id]);
2702 $datarray['uid'] = $item['uid'];
2703 $datarray['contact-id'] = $item['contact-id'];
2704 $datarray['network'] = $item['network'];
2706 $datarray['author-link'] = $item['author-link'];
2707 $datarray['author-id'] = $item['author-id'];
2709 $datarray['owner-link'] = $datarray['author-link'];
2710 $datarray['owner-id'] = $datarray['author-id'];
2712 $datarray['guid'] = $parent['guid'] . '-' . $guid;
2713 $datarray['uri'] = self::getUriFromGuid($author, $datarray['guid']);
2714 $datarray['parent-uri'] = $parent['uri'];
2716 $datarray['verb'] = $datarray['body'] = Activity::ANNOUNCE;
2717 $datarray['gravity'] = GRAVITY_ACTIVITY;
2718 $datarray['object-type'] = Activity\ObjectType::NOTE;
2720 $datarray['protocol'] = $item['protocol'];
2722 $datarray['plink'] = self::plink($author, $datarray['guid']);
2723 $datarray['private'] = $item['private'];
2724 $datarray['changed'] = $datarray['created'] = $datarray['edited'] = $item['created'];
2726 $message_id = Item::insert($datarray);
2729 Logger::info('Stored reshare activity.', ['guid' => $guid, 'id' => $message_id]);
2730 if ($datarray['uid'] == 0) {
2731 Item::distribute($message_id);
2737 * Processes a reshare message
2739 * @param array $importer Array of the importer user
2740 * @param object $data The message object
2741 * @param string $xml The original XML of the message
2743 * @return int the message id
2744 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2745 * @throws \ImagickException
2747 private static function receiveReshare(array $importer, $data, $xml)
2749 $author = Strings::escapeTags(XML::unescape($data->author));
2750 $guid = Strings::escapeTags(XML::unescape($data->guid));
2751 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
2752 $root_author = Strings::escapeTags(XML::unescape($data->root_author));
2753 $root_guid = Strings::escapeTags(XML::unescape($data->root_guid));
2754 /// @todo handle unprocessed property "provider_display_name"
2755 $public = Strings::escapeTags(XML::unescape($data->public));
2757 $contact = self::allowedContactByHandle($importer, $author, false);
2762 $message_id = self::messageExists($importer["uid"], $guid);
2767 $original_item = self::originalItem($root_guid, $root_author);
2768 if (!$original_item) {
2772 $orig_url = DI::baseUrl()."/display/".$original_item["guid"];
2776 $datarray["uid"] = $importer["uid"];
2777 $datarray["contact-id"] = $contact["id"];
2778 $datarray["network"] = Protocol::DIASPORA;
2780 $datarray["author-link"] = $contact["url"];
2781 $datarray["author-id"] = Contact::getIdForURL($contact["url"], 0);
2783 $datarray["owner-link"] = $datarray["author-link"];
2784 $datarray["owner-id"] = $datarray["author-id"];
2786 $datarray["guid"] = $guid;
2787 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
2788 $datarray['uri-id'] = ItemURI::insert(['uri' => $datarray['uri'], 'guid' => $datarray['guid']]);
2790 $datarray["verb"] = Activity::POST;
2791 $datarray["gravity"] = GRAVITY_PARENT;
2793 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
2794 $datarray["source"] = $xml;
2796 /// @todo Copy tag data from original post
2798 $prefix = share_header(
2799 $original_item["author-name"],
2800 $original_item["author-link"],
2801 $original_item["author-avatar"],
2802 $original_item["guid"],
2803 $original_item["created"],
2807 if (!empty($original_item['title'])) {
2808 $prefix .= '[h3]' . $original_item['title'] . "[/h3]\n";
2811 $datarray["body"] = $prefix.$original_item["body"]."[/share]";
2813 Tag::storeFromBody($datarray['uri-id'], $datarray["body"]);
2815 $datarray["attach"] = $original_item["attach"];
2816 $datarray["app"] = $original_item["app"];
2818 $datarray["plink"] = self::plink($author, $guid);
2819 $datarray["private"] = (($public == "false") ? Item::PRIVATE : Item::PUBLIC);
2820 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
2822 $datarray["object-type"] = $original_item["object-type"];
2824 self::fetchGuid($datarray);
2825 $message_id = Item::insert($datarray);
2827 self::sendParticipation($contact, $datarray);
2829 $root_message_id = self::messageExists($importer["uid"], $root_guid);
2830 if ($root_message_id) {
2831 self::addReshareActivity($datarray, $root_message_id, $guid, $author);
2835 Logger::log("Stored reshare ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
2836 if ($datarray['uid'] == 0) {
2837 Item::distribute($message_id);
2846 * Processes retractions
2848 * @param array $importer Array of the importer user
2849 * @param array $contact The contact of the item owner
2850 * @param object $data The message object
2852 * @return bool success
2853 * @throws \Exception
2855 private static function itemRetraction(array $importer, array $contact, $data)
2857 $author = Strings::escapeTags(XML::unescape($data->author));
2858 $target_guid = Strings::escapeTags(XML::unescape($data->target_guid));
2859 $target_type = Strings::escapeTags(XML::unescape($data->target_type));
2861 $person = self::personByHandle($author);
2862 if (!is_array($person)) {
2863 Logger::log("unable to find author detail for ".$author);
2867 if (empty($contact["url"])) {
2868 $contact["url"] = $person["url"];
2871 // Fetch items that are about to be deleted
2872 $fields = ['uid', 'id', 'parent', 'parent-uri', 'author-link', 'file'];
2874 // When we receive a public retraction, we delete every item that we find.
2875 if ($importer['uid'] == 0) {
2876 $condition = ['guid' => $target_guid, 'deleted' => false];
2878 $condition = ['guid' => $target_guid, 'deleted' => false, 'uid' => $importer['uid']];
2881 $r = Item::select($fields, $condition);
2882 if (!DBA::isResult($r)) {
2883 Logger::log("Target guid ".$target_guid." was not found on this system for user ".$importer['uid'].".");
2887 while ($item = Item::fetch($r)) {
2888 if (strstr($item['file'], '[')) {
2889 Logger::log("Target guid " . $target_guid . " for user " . $item['uid'] . " is filed. So it won't be deleted.", Logger::DEBUG);
2893 // Fetch the parent item
2894 $parent = Item::selectFirst(['author-link'], ['id' => $item['parent']]);
2896 // Only delete it if the parent author really fits
2897 if (!Strings::compareLink($parent["author-link"], $contact["url"]) && !Strings::compareLink($item["author-link"], $contact["url"])) {
2898 Logger::log("Thread author ".$parent["author-link"]." and item author ".$item["author-link"]." don't fit to expected contact ".$contact["url"], Logger::DEBUG);
2902 Item::markForDeletion(['id' => $item['id']]);
2904 Logger::log("Deleted target ".$target_guid." (".$item["id"].") from user ".$item["uid"]." parent: ".$item['parent'], Logger::DEBUG);
2911 * Receives retraction messages
2913 * @param array $importer Array of the importer user
2914 * @param string $sender The sender of the message
2915 * @param object $data The message object
2917 * @return bool Success
2918 * @throws \Exception
2920 private static function receiveRetraction(array $importer, $sender, $data)
2922 $target_type = Strings::escapeTags(XML::unescape($data->target_type));
2924 $contact = self::contactByHandle($importer["uid"], $sender);
2925 if (!$contact && (in_array($target_type, ["Contact", "Person"]))) {
2926 Logger::log("cannot find contact for sender: ".$sender." and user ".$importer["uid"]);
2934 Logger::log("Got retraction for ".$target_type.", sender ".$sender." and user ".$importer["uid"], Logger::DEBUG);
2936 switch ($target_type) {
2941 case "StatusMessage":
2942 return self::itemRetraction($importer, $contact, $data);
2944 case "PollParticipation":
2946 // Currently unsupported
2950 Logger::log("Unknown target type ".$target_type);
2957 * Receives status messages
2959 * @param array $importer Array of the importer user
2960 * @param SimpleXMLElement $data The message object
2961 * @param string $xml The original XML of the message
2963 * @return int The message id of the newly created item
2964 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2965 * @throws \ImagickException
2967 private static function receiveStatusMessage(array $importer, SimpleXMLElement $data, $xml)
2969 $author = Strings::escapeTags(XML::unescape($data->author));
2970 $guid = Strings::escapeTags(XML::unescape($data->guid));
2971 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
2972 $public = Strings::escapeTags(XML::unescape($data->public));
2973 $text = XML::unescape($data->text);
2974 $provider_display_name = Strings::escapeTags(XML::unescape($data->provider_display_name));
2976 $contact = self::allowedContactByHandle($importer, $author, false);
2981 $message_id = self::messageExists($importer["uid"], $guid);
2987 if ($data->location) {
2988 foreach ($data->location->children() as $fieldname => $data) {
2989 $address[$fieldname] = Strings::escapeTags(XML::unescape($data));
2993 $body = Markdown::toBBCode($text);
2997 // Attach embedded pictures to the body
2999 foreach ($data->photo as $photo) {
3000 $body = "[img]".XML::unescape($photo->remote_photo_path).
3001 XML::unescape($photo->remote_photo_name)."[/img]\n".$body;
3004 $datarray["object-type"] = Activity\ObjectType::IMAGE;
3006 $datarray["object-type"] = Activity\ObjectType::NOTE;
3008 // Add OEmbed and other information to the body
3009 if (!self::isHubzilla($contact["url"])) {
3010 $body = add_page_info_to_body($body, false, true);
3014 /// @todo enable support for polls
3015 //if ($data->poll) {
3016 // foreach ($data->poll AS $poll)
3021 /// @todo enable support for events
3023 $datarray["uid"] = $importer["uid"];
3024 $datarray["contact-id"] = $contact["id"];
3025 $datarray["network"] = Protocol::DIASPORA;
3027 $datarray["author-link"] = $contact["url"];
3028 $datarray["author-id"] = Contact::getIdForURL($contact["url"], 0);
3030 $datarray["owner-link"] = $datarray["author-link"];
3031 $datarray["owner-id"] = $datarray["author-id"];
3033 $datarray["guid"] = $guid;
3034 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
3035 $datarray['uri-id'] = ItemURI::insert(['uri' => $datarray['uri'], 'guid' => $datarray['guid']]);
3037 $datarray["verb"] = Activity::POST;
3038 $datarray["gravity"] = GRAVITY_PARENT;
3040 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
3041 $datarray["source"] = $xml;
3043 $datarray["body"] = self::replacePeopleGuid($body, $contact["url"]);
3045 self::storeMentions($datarray['uri-id'], $text);
3046 Tag::storeRawTagsFromBody($datarray['uri-id'], $datarray["body"]);
3048 if ($provider_display_name != "") {
3049 $datarray["app"] = $provider_display_name;
3052 $datarray["plink"] = self::plink($author, $guid);
3053 $datarray["private"] = (($public == "false") ? Item::PRIVATE : Item::PUBLIC);
3054 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
3056 if (isset($address["address"])) {
3057 $datarray["location"] = $address["address"];
3060 if (isset($address["lat"]) && isset($address["lng"])) {
3061 $datarray["coord"] = $address["lat"]." ".$address["lng"];
3064 self::fetchGuid($datarray);
3065 $message_id = Item::insert($datarray);
3067 self::sendParticipation($contact, $datarray);
3070 Logger::log("Stored item ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
3071 if ($datarray['uid'] == 0) {
3072 Item::distribute($message_id);
3080 /* ************************************************************************************** *
3081 * Here are all the functions that are needed to transmit data with the Diaspora protocol *
3082 * ************************************************************************************** */
3085 * returnes the handle of a contact
3087 * @param array $contact contact array
3089 * @return string the handle in the format user@domain.tld
3090 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3092 private static function myHandle(array $contact)
3094 if (!empty($contact["addr"])) {
3095 return $contact["addr"];
3098 // Normally we should have a filled "addr" field - but in the past this wasn't the case
3099 // So - just in case - we build the the address here.
3100 if ($contact["nickname"] != "") {
3101 $nick = $contact["nickname"];
3103 $nick = $contact["nick"];
3106 return $nick . "@" . substr(DI::baseUrl(), strpos(DI::baseUrl(), "://") + 3);
3111 * Creates the data for a private message in the new format
3113 * @param string $msg The message that is to be transmitted
3114 * @param array $user The record of the sender
3115 * @param array $contact Target of the communication
3116 * @param string $prvkey The private key of the sender
3117 * @param string $pubkey The public key of the receiver
3119 * @return string The encrypted data
3120 * @throws \Exception
3122 public static function encodePrivateData($msg, array $user, array $contact, $prvkey, $pubkey)
3124 Logger::log("Message: ".$msg, Logger::DATA);
3126 // without a public key nothing will work
3128 Logger::log("pubkey missing: contact id: ".$contact["id"]);
3132 $aes_key = openssl_random_pseudo_bytes(32);
3133 $b_aes_key = base64_encode($aes_key);
3134 $iv = openssl_random_pseudo_bytes(16);
3135 $b_iv = base64_encode($iv);
3137 $ciphertext = self::aesEncrypt($aes_key, $iv, $msg);
3139 $json = json_encode(["iv" => $b_iv, "key" => $b_aes_key]);
3141 $encrypted_key_bundle = "";
3142 if (!@openssl_public_encrypt($json, $encrypted_key_bundle, $pubkey)) {
3146 $json_object = json_encode(
3147 ["aes_key" => base64_encode($encrypted_key_bundle),
3148 "encrypted_magic_envelope" => base64_encode($ciphertext)]
3151 return $json_object;
3155 * Creates the envelope for the "fetch" endpoint and for the new format
3157 * @param string $msg The message that is to be transmitted
3158 * @param array $user The record of the sender
3160 * @return string The envelope
3161 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3163 public static function buildMagicEnvelope($msg, array $user)
3165 $b64url_data = Strings::base64UrlEncode($msg);
3166 $data = str_replace(["\n", "\r", " ", "\t"], ["", "", "", ""], $b64url_data);
3168 $key_id = Strings::base64UrlEncode(self::myHandle($user));
3169 $type = "application/xml";
3170 $encoding = "base64url";
3171 $alg = "RSA-SHA256";
3172 $signable_data = $data.".".Strings::base64UrlEncode($type).".".Strings::base64UrlEncode($encoding).".".Strings::base64UrlEncode($alg);
3174 // Fallback if the private key wasn't transmitted in the expected field
3175 if ($user['uprvkey'] == "") {
3176 $user['uprvkey'] = $user['prvkey'];
3179 $signature = Crypto::rsaSign($signable_data, $user["uprvkey"]);
3180 $sig = Strings::base64UrlEncode($signature);
3182 $xmldata = ["me:env" => ["me:data" => $data,
3183 "@attributes" => ["type" => $type],
3184 "me:encoding" => $encoding,
3187 "@attributes2" => ["key_id" => $key_id]]];
3189 $namespaces = ["me" => "http://salmon-protocol.org/ns/magic-env"];
3191 return XML::fromArray($xmldata, $xml, false, $namespaces);
3195 * Create the envelope for a message
3197 * @param string $msg The message that is to be transmitted
3198 * @param array $user The record of the sender
3199 * @param array $contact Target of the communication
3200 * @param string $prvkey The private key of the sender
3201 * @param string $pubkey The public key of the receiver
3202 * @param bool $public Is the message public?
3204 * @return string The message that will be transmitted to other servers
3205 * @throws \Exception
3207 public static function buildMessage($msg, array $user, array $contact, $prvkey, $pubkey, $public = false)
3209 // The message is put into an envelope with the sender's signature
3210 $envelope = self::buildMagicEnvelope($msg, $user);
3212 // Private messages are put into a second envelope, encrypted with the receivers public key
3214 $envelope = self::encodePrivateData($envelope, $user, $contact, $prvkey, $pubkey);
3221 * Creates a signature for a message
3223 * @param array $owner the array of the owner of the message
3224 * @param array $message The message that is to be signed
3226 * @return string The signature
3228 private static function signature($owner, $message)
3231 unset($sigmsg["author_signature"]);
3232 unset($sigmsg["parent_author_signature"]);
3234 $signed_text = implode(";", $sigmsg);
3236 return base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3240 * Transmit a message to a target server
3242 * @param array $owner the array of the item owner
3243 * @param array $contact Target of the communication
3244 * @param string $envelope The message that is to be transmitted
3245 * @param bool $public_batch Is it a public post?
3246 * @param string $guid message guid
3248 * @return int Result of the transmission
3249 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3250 * @throws \ImagickException
3252 private static function transmit(array $owner, array $contact, $envelope, $public_batch, $guid = "")
3254 $enabled = intval(DI::config()->get("system", "diaspora_enabled"));
3259 $logid = Strings::getRandomHex(4);
3261 // We always try to use the data from the fcontact table.
3262 // This is important for transmitting data to Friendica servers.
3263 if (!empty($contact['addr'])) {
3264 $fcontact = self::personByHandle($contact['addr']);
3265 if (!empty($fcontact)) {
3266 $dest_url = ($public_batch ? $fcontact["batch"] : $fcontact["notify"]);
3270 if (empty($dest_url)) {
3271 $dest_url = ($public_batch ? $contact["batch"] : $contact["notify"]);
3275 Logger::log("no url for contact: ".$contact["id"]." batch mode =".$public_batch);
3279 Logger::log("transmit: ".$logid."-".$guid." ".$dest_url);
3281 if (!intval(DI::config()->get("system", "diaspora_test"))) {
3282 $content_type = (($public_batch) ? "application/magic-envelope+xml" : "application/json");
3284 $postResult = Network::post($dest_url."/", $envelope, ["Content-Type: ".$content_type]);
3285 $return_code = $postResult->getReturnCode();
3287 Logger::log("test_mode");
3291 Logger::log("transmit: ".$logid."-".$guid." to ".$dest_url." returns: ".$return_code);
3293 return $return_code ? $return_code : -1;
3298 * Build the post xml
3300 * @param string $type The message type
3301 * @param array $message The message data
3303 * @return string The post XML
3305 public static function buildPostXml($type, $message)
3307 $data = [$type => $message];
3309 return XML::fromArray($data, $xml);
3313 * Builds and transmit messages
3315 * @param array $owner the array of the item owner
3316 * @param array $contact Target of the communication
3317 * @param string $type The message type
3318 * @param array $message The message data
3319 * @param bool $public_batch Is it a public post?
3320 * @param string $guid message guid
3322 * @return int Result of the transmission
3323 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3324 * @throws \ImagickException
3326 private static function buildAndTransmit(array $owner, array $contact, $type, $message, $public_batch = false, $guid = "")
3328 $msg = self::buildPostXml($type, $message);
3330 Logger::log('message: '.$msg, Logger::DATA);
3331 Logger::log('send guid '.$guid, Logger::DEBUG);
3333 // Fallback if the private key wasn't transmitted in the expected field
3334 if (empty($owner['uprvkey'])) {
3335 $owner['uprvkey'] = $owner['prvkey'];
3338 $envelope = self::buildMessage($msg, $owner, $contact, $owner['uprvkey'], $contact['pubkey'], $public_batch);
3340 $return_code = self::transmit($owner, $contact, $envelope, $public_batch, $guid);
3342 Logger::log("guid: ".$guid." result ".$return_code, Logger::DEBUG);
3344 return $return_code;
3348 * sends a participation (Used to get all further updates)
3350 * @param array $contact Target of the communication
3351 * @param array $item Item array
3353 * @return int The result of the transmission
3354 * @throws \Exception
3356 private static function sendParticipation(array $contact, array $item)
3358 // Don't send notifications for private postings
3359 if ($item['private'] == Item::PRIVATE) {
3363 $cachekey = "diaspora:sendParticipation:".$item['guid'];
3365 $result = DI::cache()->get($cachekey);
3366 if (!is_null($result)) {
3370 // Fetch some user id to have a valid handle to transmit the participation.
3371 // In fact it doesn't matter which user sends this - but it is needed by the protocol.
3372 // If the item belongs to a user, we take this user id.
3373 if ($item['uid'] == 0) {
3374 $condition = ['verified' => true, 'blocked' => false, 'account_removed' => false, 'account_expired' => false];
3375 $first_user = DBA::selectFirst('user', ['uid'], $condition);
3376 $owner = User::getOwnerDataById($first_user['uid']);
3378 $owner = User::getOwnerDataById($item['uid']);
3381 $author = self::myHandle($owner);
3383 $message = ["author" => $author,
3384 "guid" => System::createUUID(),
3385 "parent_type" => "Post",
3386 "parent_guid" => $item["guid"]];
3388 Logger::log("Send participation for ".$item["guid"]." by ".$author, Logger::DEBUG);
3390 // It doesn't matter what we store, we only want to avoid sending repeated notifications for the same item
3391 DI::cache()->set($cachekey, $item["guid"], Duration::QUARTER_HOUR);
3393 return self::buildAndTransmit($owner, $contact, "participation", $message);
3397 * sends an account migration
3399 * @param array $owner the array of the item owner
3400 * @param array $contact Target of the communication
3401 * @param int $uid User ID
3403 * @return int The result of the transmission
3404 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3405 * @throws \ImagickException
3407 public static function sendAccountMigration(array $owner, array $contact, $uid)
3409 $old_handle = DI::pConfig()->get($uid, 'system', 'previous_addr');
3410 $profile = self::createProfileData($uid);
3412 $signed_text = 'AccountMigration:'.$old_handle.':'.$profile['author'];
3413 $signature = base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3415 $message = ["author" => $old_handle,
3416 "profile" => $profile,
3417 "signature" => $signature];
3419 Logger::log("Send account migration ".print_r($message, true), Logger::DEBUG);
3421 return self::buildAndTransmit($owner, $contact, "account_migration", $message);
3425 * Sends a "share" message
3427 * @param array $owner the array of the item owner
3428 * @param array $contact Target of the communication
3430 * @return int The result of the transmission
3431 * @throws \Exception
3433 public static function sendShare(array $owner, array $contact)
3436 * @todo support the different possible combinations of "following" and "sharing"
3437 * Currently, Diaspora only interprets the "sharing" field
3439 * Before switching this code productive, we have to check all "sendShare" calls if "rel" is set correctly
3443 switch ($contact["rel"]) {
3444 case Contact::FRIEND:
3448 case Contact::SHARING:
3452 case Contact::FOLLOWER:
3458 $message = ["author" => self::myHandle($owner),
3459 "recipient" => $contact["addr"],
3460 "following" => "true",
3461 "sharing" => "true"];
3463 Logger::log("Send share ".print_r($message, true), Logger::DEBUG);
3465 return self::buildAndTransmit($owner, $contact, "contact", $message);
3469 * sends an "unshare"
3471 * @param array $owner the array of the item owner
3472 * @param array $contact Target of the communication
3474 * @return int The result of the transmission
3475 * @throws \Exception
3477 public static function sendUnshare(array $owner, array $contact)
3479 $message = ["author" => self::myHandle($owner),
3480 "recipient" => $contact["addr"],
3481 "following" => "false",
3482 "sharing" => "false"];
3484 Logger::log("Send unshare ".print_r($message, true), Logger::DEBUG);
3486 return self::buildAndTransmit($owner, $contact, "contact", $message);
3490 * Checks a message body if it is a reshare
3492 * @param string $body The message body that is to be check
3493 * @param bool $complete Should it be a complete check or a simple check?
3495 * @return array|bool Reshare details or "false" if no reshare
3496 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3497 * @throws \ImagickException
3499 public static function isReshare($body, $complete = true)
3501 $body = trim($body);
3503 $reshared = Item::getShareArray(['body' => $body]);
3504 if (empty($reshared)) {
3508 // Skip if it isn't a pure repeated messages
3509 // Does it start with a share?
3510 if (!empty($reshared['comment']) && $complete) {
3514 if (!empty($reshared['guid']) && $complete) {
3515 $condition = ['guid' => $reshared['guid'], 'network' => [Protocol::DFRN, Protocol::DIASPORA]];
3516 $item = Item::selectFirst(['contact-id'], $condition);
3517 if (DBA::isResult($item)) {
3519 $ret["root_handle"] = self::handleFromContact($item["contact-id"]);
3520 $ret["root_guid"] = $reshared['guid'];
3522 } elseif ($complete) {
3523 // We are resharing something that isn't a DFRN or Diaspora post.
3524 // So we have to return "false" on "$complete" to not trigger a reshare.
3527 } elseif (empty($reshared['guid']) && $complete) {
3533 if (!empty($reshared['profile']) && ($cid = Contact::getIdForURL($reshared['profile']))) {
3534 $contact = DBA::selectFirst('contact', ['addr'], ['id' => $cid]);
3535 if (!empty($contact['addr'])) {
3536 $ret['root_handle'] = $contact['addr'];
3540 if (empty($ret) && !$complete) {
3548 * Create an event array
3550 * @param integer $event_id The id of the event
3552 * @return array with event data
3553 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3555 private static function buildEvent($event_id)
3557 $r = q("SELECT `guid`, `uid`, `start`, `finish`, `nofinish`, `summary`, `desc`, `location`, `adjust` FROM `event` WHERE `id` = %d", intval($event_id));
3558 if (!DBA::isResult($r)) {
3566 $r = q("SELECT `timezone` FROM `user` WHERE `uid` = %d", intval($event['uid']));
3567 if (!DBA::isResult($r)) {
3573 $r = q("SELECT `addr`, `nick` FROM `contact` WHERE `uid` = %d AND `self`", intval($event['uid']));
3574 if (!DBA::isResult($r)) {
3580 $eventdata['author'] = self::myHandle($owner);
3582 if ($event['guid']) {
3583 $eventdata['guid'] = $event['guid'];
3586 $mask = DateTimeFormat::ATOM;
3588 /// @todo - establish "all day" events in Friendica
3589 $eventdata["all_day"] = "false";
3591 $eventdata['timezone'] = 'UTC';
3592 if (!$event['adjust'] && $user['timezone']) {
3593 $eventdata['timezone'] = $user['timezone'];
3596 if ($event['start']) {
3597 $eventdata['start'] = DateTimeFormat::convert($event['start'], "UTC", $eventdata['timezone'], $mask);
3599 if ($event['finish'] && !$event['nofinish']) {
3600 $eventdata['end'] = DateTimeFormat::convert($event['finish'], "UTC", $eventdata['timezone'], $mask);
3602 if ($event['summary']) {
3603 $eventdata['summary'] = html_entity_decode(BBCode::toMarkdown($event['summary']));
3605 if ($event['desc']) {
3606 $eventdata['description'] = html_entity_decode(BBCode::toMarkdown($event['desc']));
3608 if ($event['location']) {
3609 $event['location'] = preg_replace("/\[map\](.*?)\[\/map\]/ism", '$1', $event['location']);
3610 $coord = Map::getCoordinates($event['location']);
3613 $location["address"] = html_entity_decode(BBCode::toMarkdown($event['location']));
3614 if (!empty($coord['lat']) && !empty($coord['lon'])) {
3615 $location["lat"] = $coord['lat'];
3616 $location["lng"] = $coord['lon'];
3618 $location["lat"] = 0;
3619 $location["lng"] = 0;
3621 $eventdata['location'] = $location;
3628 * Create a post (status message or reshare)
3630 * @param array $item The item that will be exported
3631 * @param array $owner the array of the item owner
3634 * 'type' -> Message type ("status_message" or "reshare")
3635 * 'message' -> Array of XML elements of the status
3636 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3637 * @throws \ImagickException
3639 public static function buildStatus(array $item, array $owner)
3641 $cachekey = "diaspora:buildStatus:".$item['guid'];
3643 $result = DI::cache()->get($cachekey);
3644 if (!is_null($result)) {
3648 $myaddr = self::myHandle($owner);
3650 $public = ($item["private"] == Item::PRIVATE ? "false" : "true");
3651 $created = DateTimeFormat::utc($item['received'], DateTimeFormat::ATOM);
3652 $edited = DateTimeFormat::utc($item["edited"] ?? $item["created"], DateTimeFormat::ATOM);
3654 // Detect a share element and do a reshare
3655 if (($item['private'] != Item::PRIVATE) && ($ret = self::isReshare($item["body"]))) {
3656 $message = ["author" => $myaddr,
3657 "guid" => $item["guid"],
3658 "created_at" => $created,
3659 "root_author" => $ret["root_handle"],
3660 "root_guid" => $ret["root_guid"],
3661 "provider_display_name" => $item["app"],
3662 "public" => $public];
3666 $title = $item["title"];
3667 $body = $item["body"];
3669 // Fetch the title from an attached link - if there is one
3670 if (empty($item["title"]) && DI::pConfig()->get($owner['uid'], 'system', 'attach_link_title')) {
3671 $page_data = BBCode::getAttachmentData($item['body']);
3672 if (!empty($page_data['type']) && !empty($page_data['title']) && ($page_data['type'] == 'link')) {
3673 $title = $page_data['title'];
3677 if ($item['author-link'] != $item['owner-link']) {
3678 require_once 'mod/share.php';
3679 $body = share_header($item['author-name'], $item['author-link'], $item['author-avatar'],
3680 "", $item['created'], $item['plink']) . $body . '[/share]';
3683 // convert to markdown
3684 $body = html_entity_decode(BBCode::toMarkdown($body));
3687 if (strlen($title)) {
3688 $body = "### ".html_entity_decode($title)."\n\n".$body;
3691 if ($item["attach"]) {
3692 $cnt = preg_match_all('/href=\"(.*?)\"(.*?)title=\"(.*?)\"/ism', $item["attach"], $matches, PREG_SET_ORDER);
3694 $body .= "\n".DI::l10n()->t("Attachments:")."\n";
3695 foreach ($matches as $mtch) {
3696 $body .= "[".$mtch[3]."](".$mtch[1].")\n";
3703 if ($item["location"] != "")
3704 $location["address"] = $item["location"];
3706 if ($item["coord"] != "") {
3707 $coord = explode(" ", $item["coord"]);
3708 $location["lat"] = $coord[0];
3709 $location["lng"] = $coord[1];
3712 $message = ["author" => $myaddr,
3713 "guid" => $item["guid"],
3714 "created_at" => $created,
3715 "edited_at" => $edited,
3716 "public" => $public,
3718 "provider_display_name" => $item["app"],
3719 "location" => $location];
3721 // Diaspora rejects messages when they contain a location without "lat" or "lng"
3722 if (!isset($location["lat"]) || !isset($location["lng"])) {
3723 unset($message["location"]);
3726 if ($item['event-id'] > 0) {
3727 $event = self::buildEvent($item['event-id']);
3728 if (count($event)) {
3729 $message['event'] = $event;
3731 if (!empty($event['location']['address']) &&
3732 !empty($event['location']['lat']) &&
3733 !empty($event['location']['lng'])) {
3734 $message['location'] = $event['location'];
3737 /// @todo Once Diaspora supports it, we will remove the body and the location hack above
3738 // $message['text'] = '';
3742 $type = "status_message";
3745 $msg = ["type" => $type, "message" => $message];
3747 DI::cache()->set($cachekey, $msg, Duration::QUARTER_HOUR);
3752 private static function prependParentAuthorMention($body, $profile_url)
3754 $profile = Contact::getDetailsByURL($profile_url);
3755 if (!empty($profile['addr'])
3756 && $profile['contact-type'] != Contact::TYPE_COMMUNITY
3757 && !strstr($body, $profile['addr'])
3758 && !strstr($body, $profile_url)
3760 $body = '@[url=' . $profile_url . ']' . $profile['name'] . '[/url] ' . $body;
3769 * @param array $item The item that will be exported
3770 * @param array $owner the array of the item owner
3771 * @param array $contact Target of the communication
3772 * @param bool $public_batch Is it a public post?
3774 * @return int The result of the transmission
3775 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3776 * @throws \ImagickException
3778 public static function sendStatus(array $item, array $owner, array $contact, $public_batch = false)
3780 $status = self::buildStatus($item, $owner);
3782 return self::buildAndTransmit($owner, $contact, $status["type"], $status["message"], $public_batch, $item["guid"]);
3786 * Creates a "like" object
3788 * @param array $item The item that will be exported
3789 * @param array $owner the array of the item owner
3791 * @return array The data for a "like"
3792 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3794 private static function constructLike(array $item, array $owner)
3796 $parent = Item::selectFirst(['guid', 'uri', 'parent-uri'], ['uri' => $item["thr-parent"]]);
3797 if (!DBA::isResult($parent)) {
3801 $target_type = ($parent["uri"] === $parent["parent-uri"] ? "Post" : "Comment");
3803 if ($item['verb'] === Activity::LIKE) {
3805 } elseif ($item['verb'] === Activity::DISLIKE) {
3806 $positive = "false";
3809 return(["author" => self::myHandle($owner),
3810 "guid" => $item["guid"],
3811 "parent_guid" => $parent["guid"],
3812 "parent_type" => $target_type,
3813 "positive" => $positive,
3814 "author_signature" => ""]);
3818 * Creates an "EventParticipation" object
3820 * @param array $item The item that will be exported
3821 * @param array $owner the array of the item owner
3823 * @return array The data for an "EventParticipation"
3824 * @throws \Exception
3826 private static function constructAttend(array $item, array $owner)
3828 $parent = Item::selectFirst(['guid', 'uri', 'parent-uri'], ['uri' => $item["thr-parent"]]);
3829 if (!DBA::isResult($parent)) {
3833 switch ($item['verb']) {
3834 case Activity::ATTEND:
3835 $attend_answer = 'accepted';
3837 case Activity::ATTENDNO:
3838 $attend_answer = 'declined';
3840 case Activity::ATTENDMAYBE:
3841 $attend_answer = 'tentative';
3844 Logger::log('Unknown verb '.$item['verb'].' in item '.$item['guid']);
3848 return(["author" => self::myHandle($owner),
3849 "guid" => $item["guid"],
3850 "parent_guid" => $parent["guid"],
3851 "status" => $attend_answer,
3852 "author_signature" => ""]);
3856 * Creates the object for a comment
3858 * @param array $item The item that will be exported
3859 * @param array $owner the array of the item owner
3861 * @return array|false The data for a comment
3862 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3864 private static function constructComment(array $item, array $owner)
3866 $cachekey = "diaspora:constructComment:".$item['guid'];
3868 $result = DI::cache()->get($cachekey);
3869 if (!is_null($result)) {
3873 $toplevel_item = Item::selectFirst(['guid', 'author-id', 'author-link'], ['id' => $item['parent'], 'parent' => $item['parent']]);
3874 if (!DBA::isResult($toplevel_item)) {
3875 Logger::error('Missing parent conversation item', ['parent' => $item['parent']]);
3879 $thread_parent_item = $toplevel_item;
3880 if ($item['thr-parent'] != $item['parent-uri']) {
3881 $thread_parent_item = Item::selectFirst(['guid', 'author-id', 'author-link'], ['uri' => $item['thr-parent'], 'uid' => $item['uid']]);
3884 $body = $item["body"];
3886 // The replied to autor mention is prepended for clarity if:
3887 // - Item replied isn't yours
3888 // - Item is public or explicit mentions are disabled
3889 // - Implicit mentions are enabled
3891 $item['author-id'] != $thread_parent_item['author-id']
3892 && (empty($item['uid']) || !Feature::isEnabled($item['uid'], 'explicit_mentions'))
3893 && !DI::config()->get('system', 'disable_implicit_mentions')
3895 $body = self::prependParentAuthorMention($body, $thread_parent_item['author-link']);
3898 $text = html_entity_decode(BBCode::toMarkdown($body));
3899 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
3900 $edited = DateTimeFormat::utc($item["edited"], DateTimeFormat::ATOM);
3903 "author" => self::myHandle($owner),
3904 "guid" => $item["guid"],
3905 "created_at" => $created,
3906 "edited_at" => $edited,
3907 "parent_guid" => $toplevel_item["guid"],
3909 "author_signature" => ""
3912 // Send the thread parent guid only if it is a threaded comment
3913 if ($item['thr-parent'] != $item['parent-uri']) {
3914 $comment['thread_parent_guid'] = $thread_parent_item['guid'];
3917 DI::cache()->set($cachekey, $comment, Duration::QUARTER_HOUR);
3923 * Send a like or a comment
3925 * @param array $item The item that will be exported
3926 * @param array $owner the array of the item owner
3927 * @param array $contact Target of the communication
3928 * @param bool $public_batch Is it a public post?
3930 * @return int The result of the transmission
3931 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3932 * @throws \ImagickException
3934 public static function sendFollowup(array $item, array $owner, array $contact, $public_batch = false)
3936 if (in_array($item['verb'], [Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE])) {
3937 $message = self::constructAttend($item, $owner);
3938 $type = "event_participation";
3939 } elseif (in_array($item["verb"], [Activity::LIKE, Activity::DISLIKE])) {
3940 $message = self::constructLike($item, $owner);
3942 } elseif (!in_array($item["verb"], [Activity::FOLLOW, Activity::TAG])) {
3943 $message = self::constructComment($item, $owner);
3947 if (empty($message)) {
3951 $message["author_signature"] = self::signature($owner, $message);
3953 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
3957 * Creates a message from a signature record entry
3959 * @param array $item The item that will be exported
3960 * @return array The message
3962 private static function messageFromSignature(array $item)
3964 // Split the signed text
3965 $signed_parts = explode(";", $item['signed_text']);
3967 if ($item["deleted"]) {
3968 $message = ["author" => $item['signer'],
3969 "target_guid" => $signed_parts[0],
3970 "target_type" => $signed_parts[1]];
3971 } elseif (in_array($item["verb"], [Activity::LIKE, Activity::DISLIKE])) {
3972 $message = ["author" => $signed_parts[4],
3973 "guid" => $signed_parts[1],
3974 "parent_guid" => $signed_parts[3],
3975 "parent_type" => $signed_parts[2],
3976 "positive" => $signed_parts[0],
3977 "author_signature" => $item['signature'],
3978 "parent_author_signature" => ""];
3980 // Remove the comment guid
3981 $guid = array_shift($signed_parts);
3983 // Remove the parent guid
3984 $parent_guid = array_shift($signed_parts);
3986 // Remove the handle
3987 $handle = array_pop($signed_parts);
3990 "author" => $handle,
3992 "parent_guid" => $parent_guid,
3993 "text" => implode(";", $signed_parts),
3994 "author_signature" => $item['signature'],
3995 "parent_author_signature" => ""
4002 * Relays messages (like, comment, retraction) to other servers if we are the thread owner
4004 * @param array $item The item that will be exported
4005 * @param array $owner the array of the item owner
4006 * @param array $contact Target of the communication
4007 * @param bool $public_batch Is it a public post?
4009 * @return int The result of the transmission
4010 * @throws \Exception
4012 public static function sendRelay(array $item, array $owner, array $contact, $public_batch = false)
4014 if ($item["deleted"]) {
4015 return self::sendRetraction($item, $owner, $contact, $public_batch, true);
4016 } elseif (in_array($item["verb"], [Activity::LIKE, Activity::DISLIKE])) {
4022 Logger::log("Got relayable data ".$type." for item ".$item["guid"]." (".$item["id"].")", Logger::DEBUG);
4024 $msg = json_decode($item['signed_text'], true);
4027 if (is_array($msg)) {
4028 foreach ($msg as $field => $data) {
4029 if (!$item["deleted"]) {
4030 if ($field == "diaspora_handle") {
4033 if ($field == "target_type") {
4034 $field = "parent_type";
4038 $message[$field] = $data;
4041 Logger::log("Signature text for item ".$item["guid"]." (".$item["id"].") couldn't be extracted: ".$item['signed_text'], Logger::DEBUG);
4044 $message["parent_author_signature"] = self::signature($owner, $message);
4046 Logger::log("Relayed data ".print_r($message, true), Logger::DEBUG);
4048 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
4052 * Sends a retraction (deletion) of a message, like or comment
4054 * @param array $item The item that will be exported
4055 * @param array $owner the array of the item owner
4056 * @param array $contact Target of the communication
4057 * @param bool $public_batch Is it a public post?
4058 * @param bool $relay Is the retraction transmitted from a relay?
4060 * @return int The result of the transmission
4061 * @throws \Exception
4063 public static function sendRetraction(array $item, array $owner, array $contact, $public_batch = false, $relay = false)
4065 $itemaddr = self::handleFromContact($item["contact-id"], $item["author-id"]);
4067 $msg_type = "retraction";
4069 if ($item['gravity'] == GRAVITY_PARENT) {
4070 $target_type = "Post";
4071 } elseif (in_array($item["verb"], [Activity::LIKE, Activity::DISLIKE])) {
4072 $target_type = "Like";
4074 $target_type = "Comment";
4077 $message = ["author" => $itemaddr,
4078 "target_guid" => $item['guid'],
4079 "target_type" => $target_type];
4081 Logger::log("Got message ".print_r($message, true), Logger::DEBUG);
4083 return self::buildAndTransmit($owner, $contact, $msg_type, $message, $public_batch, $item["guid"]);
4089 * @param array $item The item that will be exported
4090 * @param array $owner The owner
4091 * @param array $contact Target of the communication
4093 * @return int The result of the transmission
4094 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
4095 * @throws \ImagickException
4097 public static function sendMail(array $item, array $owner, array $contact)
4099 $myaddr = self::myHandle($owner);
4101 $cnv = DBA::selectFirst('conv', [], ['id' => $item["convid"], 'uid' => $item["uid"]]);
4102 if (!DBA::isResult($cnv)) {
4103 Logger::log("conversation not found.");
4107 $body = BBCode::toMarkdown($item["body"]);
4108 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
4111 "author" => $myaddr,
4112 "guid" => $item["guid"],
4113 "conversation_guid" => $cnv["guid"],
4115 "created_at" => $created,
4118 if ($item["reply"]) {
4123 "author" => $cnv["creator"],
4124 "guid" => $cnv["guid"],
4125 "subject" => $cnv["subject"],
4126 "created_at" => DateTimeFormat::utc($cnv['created'], DateTimeFormat::ATOM),
4127 "participants" => $cnv["recips"],
4131 $type = "conversation";
4134 return self::buildAndTransmit($owner, $contact, $type, $message, false, $item["guid"]);
4138 * Split a name into first name and last name
4140 * @param string $name The name
4142 * @return array The array with "first" and "last"
4144 public static function splitName($name) {
4145 $name = trim($name);
4147 // Is the name longer than 64 characters? Then cut the rest of it.
4148 if (strlen($name) > 64) {
4149 if ((strpos($name, ' ') <= 64) && (strpos($name, ' ') !== false)) {
4150 $name = trim(substr($name, 0, strrpos(substr($name, 0, 65), ' ')));
4152 $name = substr($name, 0, 64);
4156 // Take the first word as first name
4157 $first = ((strpos($name, ' ') ? trim(substr($name, 0, strpos($name, ' '))) : $name));
4158 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4159 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4160 return ['first' => $first, 'last' => $last];
4163 // Take the last word as last name
4164 $first = ((strrpos($name, ' ') ? trim(substr($name, 0, strrpos($name, ' '))) : $name));
4165 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4167 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4168 return ['first' => $first, 'last' => $last];
4171 // Take the first 32 characters if there is no space in the first 32 characters
4172 if ((strpos($name, ' ') > 32) || (strpos($name, ' ') === false)) {
4173 $first = substr($name, 0, 32);
4174 $last = substr($name, 32);
4175 return ['first' => $first, 'last' => $last];
4178 $first = trim(substr($name, 0, strrpos(substr($name, 0, 33), ' ')));
4179 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4181 // Check if the last name is longer than 32 characters
4182 if (strlen($last) > 32) {
4183 if (strpos($last, ' ') <= 32) {
4184 $last = trim(substr($last, 0, strrpos(substr($last, 0, 33), ' ')));
4186 $last = substr($last, 0, 32);
4190 return ['first' => $first, 'last' => $last];
4194 * Create profile data
4196 * @param int $uid The user id
4198 * @return array The profile data
4199 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
4201 private static function createProfileData($uid)
4203 $profile = DBA::selectFirst('owner-view', ['uid', 'addr', 'name', 'location', 'net-publish', 'dob', 'about', 'pub_keywords'], ['uid' => $uid]);
4204 if (!DBA::isResult($profile)) {
4208 $handle = $profile["addr"];
4210 $split_name = self::splitName($profile['name']);
4211 $first = $split_name['first'];
4212 $last = $split_name['last'];
4214 $large = DI::baseUrl().'/photo/custom/300/'.$profile['uid'].'.jpg';
4215 $medium = DI::baseUrl().'/photo/custom/100/'.$profile['uid'].'.jpg';
4216 $small = DI::baseUrl().'/photo/custom/50/' .$profile['uid'].'.jpg';
4217 $searchable = ($profile['net-publish'] ? 'true' : 'false');
4223 if ($searchable === 'true') {
4226 if ($profile['dob'] && ($profile['dob'] > '0000-00-00')) {
4227 list($year, $month, $day) = sscanf($profile['dob'], '%4d-%2d-%2d');
4231 $dob = DateTimeFormat::utc($year . '-' . $month . '-'. $day, 'Y-m-d');
4234 $about = BBCode::toMarkdown($profile['about']);
4236 $location = $profile['location'];
4238 if ($profile['pub_keywords']) {
4239 $kw = str_replace(',', ' ', $profile['pub_keywords']);
4240 $kw = str_replace(' ', ' ', $kw);
4241 $arr = explode(' ', $kw);
4243 for ($x = 0; $x < 5; $x ++) {
4244 if (!empty($arr[$x])) {
4245 $tags .= '#'. trim($arr[$x]) .' ';
4250 $tags = trim($tags);
4253 return ["author" => $handle,
4254 "first_name" => $first,
4255 "last_name" => $last,
4256 "image_url" => $large,
4257 "image_url_medium" => $medium,
4258 "image_url_small" => $small,
4261 "location" => $location,
4262 "searchable" => $searchable,
4264 "tag_string" => $tags];
4268 * Sends profile data
4270 * @param int $uid The user id
4271 * @param bool $recips optional, default false
4273 * @throws \Exception
4275 public static function sendProfile($uid, $recips = false)
4281 $owner = User::getOwnerDataById($uid);
4288 "SELECT `id`,`name`,`network`,`pubkey`,`notify` FROM `contact` WHERE `network` = '%s'
4289 AND `uid` = %d AND `rel` != %d",
4290 DBA::escape(Protocol::DIASPORA),
4292 intval(Contact::SHARING)
4300 $message = self::createProfileData($uid);
4302 // @ToDo Split this into single worker jobs
4303 foreach ($recips as $recip) {
4304 Logger::log("Send updated profile data for user ".$uid." to contact ".$recip["id"], Logger::DEBUG);
4305 self::buildAndTransmit($owner, $recip, "profile", $message);
4310 * Creates the signature for likes that are created on our system
4312 * @param integer $uid The user of that comment
4313 * @param array $item Item array
4315 * @return array Signed content
4316 * @throws \Exception
4318 public static function createLikeSignature($uid, array $item)
4320 $owner = User::getOwnerDataById($uid);
4321 if (empty($owner)) {
4322 Logger::log("No owner post, so not storing signature", Logger::DEBUG);
4326 if (!in_array($item["verb"], [Activity::LIKE, Activity::DISLIKE])) {
4330 $message = self::constructLike($item, $owner);
4331 if ($message === false) {
4335 $message["author_signature"] = self::signature($owner, $message);
4341 * Creates the signature for Comments that are created on our system
4343 * @param integer $uid The user of that comment
4344 * @param array $item Item array
4346 * @return array Signed content
4347 * @throws \Exception
4349 public static function createCommentSignature($uid, array $item)
4351 $owner = User::getOwnerDataById($uid);
4352 if (empty($owner)) {
4353 Logger::log("No owner post, so not storing signature", Logger::DEBUG);
4357 // This is a workaround for the behaviour of the "insert" function, see mod/item.php
4358 $item['thr-parent'] = $item['parent-uri'];
4360 $parent = Item::selectFirst(['parent-uri'], ['uri' => $item['parent-uri']]);
4361 if (!DBA::isResult($parent)) {
4365 $item['parent-uri'] = $parent['parent-uri'];
4367 $message = self::constructComment($item, $owner);
4368 if ($message === false) {
4372 $message["author_signature"] = self::signature($owner, $message);