3 * @file src/Protocol/diaspora.php
4 * @brief The implementation of the diaspora protocol
6 * The new protocol is described here: http://diaspora.github.io/diaspora_federation/index.html
7 * This implementation here interprets the old and the new protocol and sends the new one.
8 * In the future we will remove most stuff from "validPosting" and interpret only the new protocol.
11 namespace Friendica\Protocol;
13 use Friendica\Content\Feature;
14 use Friendica\Content\Text\BBCode;
15 use Friendica\Content\Text\Markdown;
16 use Friendica\Core\Cache;
17 use Friendica\Core\Config;
18 use Friendica\Core\L10n;
19 use Friendica\Core\Logger;
20 use Friendica\Core\PConfig;
21 use Friendica\Core\Protocol;
22 use Friendica\Core\System;
23 use Friendica\Core\Worker;
24 use Friendica\Database\DBA;
25 use Friendica\Model\Contact;
26 use Friendica\Model\Conversation;
27 use Friendica\Model\GContact;
28 use Friendica\Model\Group;
29 use Friendica\Model\Item;
30 use Friendica\Model\ItemDeliveryData;
31 use Friendica\Model\Mail;
32 use Friendica\Model\Profile;
33 use Friendica\Model\User;
34 use Friendica\Network\Probe;
35 use Friendica\Util\Crypto;
36 use Friendica\Util\DateTimeFormat;
37 use Friendica\Util\Map;
38 use Friendica\Util\Network;
39 use Friendica\Util\Strings;
40 use Friendica\Util\XML;
41 use Friendica\Worker\Delivery;
45 * @brief This class contain functions to create and send Diaspora XML files
51 * Mark the relay contact of the given contact for archival
52 * This is called whenever there is a communication issue with the server.
53 * It avoids sending stuff to servers who don't exist anymore.
54 * The relay contact is a technical contact entry that exists once per server.
56 * @param array $contact of the relay contact
58 public static function markRelayForArchival(array $contact)
60 if (!empty($contact['contact-type']) && ($contact['contact-type'] == Contact::TYPE_RELAY)) {
61 // This is already the relay contact, we don't need to fetch it
62 $relay_contact = $contact;
63 } elseif (empty($contact['baseurl'])) {
64 if (!empty($contact['batch'])) {
65 $condition = ['uid' => 0, 'network' => Protocol::FEDERATED, 'batch' => $contact['batch'], 'contact-type' => Contact::TYPE_RELAY];
66 $relay_contact = DBA::selectFirst('contact', [], $condition);
71 $relay_contact = self::getRelayContact($contact['baseurl'], []);
74 if (!empty($relay_contact)) {
75 Logger::info('Relay contact will be marked for archival', ['id' => $relay_contact['id'], 'url' => $relay_contact['url']]);
76 Contact::markForArchival($relay_contact);
81 * @brief Return a list of relay servers
83 * The list contains not only the official relays but also servers that we serve directly
85 * @param integer $item_id The id of the item that is sent
86 * @param array $contacts The previously fetched contacts
88 * @return array of relay servers
89 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
91 public static function relayList($item_id, array $contacts = [])
95 // Fetching relay servers
96 $serverdata = Config::get("system", "relay_server");
98 if (!empty($serverdata)) {
99 $servers = explode(",", $serverdata);
100 foreach ($servers as $server) {
101 $serverlist[$server] = trim($server);
105 if (Config::get("system", "relay_directly", false)) {
106 // We distribute our stuff based on the parent to ensure that the thread will be complete
107 $parent = Item::selectFirst(['parent'], ['id' => $item_id]);
108 if (!DBA::isResult($parent)) {
112 // Servers that want to get all content
113 $servers = DBA::select('gserver', ['url'], ['relay-subscribe' => true, 'relay-scope' => 'all']);
114 while ($server = DBA::fetch($servers)) {
115 $serverlist[$server['url']] = $server['url'];
118 // All tags of the current post
119 $condition = ['otype' => TERM_OBJ_POST, 'type' => TERM_HASHTAG, 'oid' => $parent['parent']];
120 $tags = DBA::select('term', ['term'], $condition);
122 while ($tag = DBA::fetch($tags)) {
123 $taglist[] = $tag['term'];
126 // All servers who wants content with this tag
128 if (!empty($taglist)) {
129 $tagserver = DBA::select('gserver-tag', ['gserver-id'], ['tag' => $taglist]);
130 while ($server = DBA::fetch($tagserver)) {
131 $tagserverlist[] = $server['gserver-id'];
135 // All adresses with the given id
136 if (!empty($tagserverlist)) {
137 $servers = DBA::select('gserver', ['url'], ['relay-subscribe' => true, 'relay-scope' => 'tags', 'id' => $tagserverlist]);
138 while ($server = DBA::fetch($servers)) {
139 $serverlist[$server['url']] = $server['url'];
144 // Now we are collecting all relay contacts
145 foreach ($serverlist as $server_url) {
146 // We don't send messages to ourselves
147 if (Strings::compareLink($server_url, System::baseUrl())) {
150 $contact = self::getRelayContact($server_url);
151 if (is_bool($contact)) {
156 foreach ($contacts as $entry) {
157 if ($entry['batch'] == $contact['batch']) {
163 $contacts[] = $contact;
171 * @brief Return a contact for a given server address or creates a dummy entry
173 * @param string $server_url The url of the server
174 * @param array $fields Fieldlist
175 * @return array with the contact
178 private static function getRelayContact(string $server_url, array $fields = ['batch', 'id', 'name', 'network', 'protocol', 'archive', 'blocked'])
180 // Fetch the relay contact
181 $condition = ['uid' => 0, 'nurl' => Strings::normaliseLink($server_url),
182 'contact-type' => Contact::TYPE_RELAY];
183 $contact = DBA::selectFirst('contact', $fields, $condition);
185 if (DBA::isResult($contact)) {
186 if ($contact['archive'] || $contact['blocked']) {
191 self::setRelayContact($server_url);
193 $contact = DBA::selectFirst('contact', $fields, $condition);
194 if (DBA::isResult($contact)) {
199 // It should never happen that we arrive here
204 * @brief Update or insert a relay contact
206 * @param string $server_url The url of the server
207 * @param array $network_fields Optional network specific fields
210 public static function setRelayContact($server_url, array $network_fields = [])
212 $fields = ['created' => DateTimeFormat::utcNow(),
213 'name' => 'relay', 'nick' => 'relay', 'url' => $server_url,
214 'nurl' => Strings::normaliseLink($server_url),
215 'network' => Protocol::DIASPORA, 'uid' => 0,
216 'batch' => $server_url . '/receive/public',
217 'rel' => Contact::FOLLOWER, 'blocked' => false,
218 'pending' => false, 'writable' => true,
219 'baseurl' => $server_url, 'contact-type' => Contact::TYPE_RELAY];
221 $fields = array_merge($fields, $network_fields);
223 $condition = ['uid' => 0, 'nurl' => Strings::normaliseLink($server_url)];
224 $old = DBA::selectFirst('contact', [], $condition);
225 if (DBA::isResult($old)) {
226 unset($fields['created']);
227 $condition = ['id' => $old['id']];
229 Logger::info('Update relay contact', ['fields' => $fields, 'condition' => $condition]);
230 DBA::update('contact', $fields, $condition, $old);
232 Logger::info('Create relay contact', ['fields' => $fields]);
233 Contact::insert($fields);
238 * @brief Return a list of participating contacts for a thread
240 * This is used for the participation feature.
241 * One of the parameters is a contact array.
242 * This is done to avoid duplicates.
244 * @param integer $thread The id of the thread
245 * @param array $contacts The previously fetched contacts
247 * @return array of relay servers
250 public static function participantsForThread($thread, array $contacts)
252 $r = DBA::p("SELECT `contact`.`batch`, `contact`.`id`, `contact`.`name`, `contact`.`network`, `contact`.`protocol`,
253 `fcontact`.`batch` AS `fbatch`, `fcontact`.`network` AS `fnetwork` FROM `participation`
254 INNER JOIN `contact` ON `contact`.`id` = `participation`.`cid`
255 INNER JOIN `fcontact` ON `fcontact`.`id` = `participation`.`fid`
256 WHERE `participation`.`iid` = ? AND NOT `contact`.`archive`", $thread);
258 while ($contact = DBA::fetch($r)) {
259 if (!empty($contact['fnetwork'])) {
260 $contact['network'] = $contact['fnetwork'];
262 unset($contact['fnetwork']);
264 if (empty($contact['protocol'])) {
265 $contact['protocol'] = $contact['network'];
268 if (empty($contact['batch']) && !empty($contact['fbatch'])) {
269 $contact['batch'] = $contact['fbatch'];
271 unset($contact['fbatch']);
274 foreach ($contacts as $entry) {
275 if ($entry['batch'] == $contact['batch']) {
281 $contacts[] = $contact;
290 * @brief repairs a signature that was double encoded
292 * The function is unused at the moment. It was copied from the old implementation.
294 * @param string $signature The signature
295 * @param string $handle The handle of the signature owner
296 * @param integer $level This value is only set inside this function to avoid endless loops
298 * @return string the repaired signature
301 private static function repairSignature($signature, $handle = "", $level = 1)
303 if ($signature == "") {
307 if (base64_encode(base64_decode(base64_decode($signature))) == base64_decode($signature)) {
308 $signature = base64_decode($signature);
309 Logger::log("Repaired double encoded signature from Diaspora/Hubzilla handle ".$handle." - level ".$level, Logger::DEBUG);
311 // Do a recursive call to be able to fix even multiple levels
313 $signature = self::repairSignature($signature, $handle, ++$level);
321 * @brief verify the envelope and return the verified data
323 * @param string $envelope The magic envelope
325 * @return string verified data
326 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
327 * @throws \ImagickException
329 private static function verifyMagicEnvelope($envelope)
331 $basedom = XML::parseString($envelope);
333 if (!is_object($basedom)) {
334 Logger::log("Envelope is no XML file");
338 $children = $basedom->children('http://salmon-protocol.org/ns/magic-env');
340 if (sizeof($children) == 0) {
341 Logger::log("XML has no children");
347 $data = Strings::base64UrlDecode($children->data);
348 $type = $children->data->attributes()->type[0];
350 $encoding = $children->encoding;
352 $alg = $children->alg;
354 $sig = Strings::base64UrlDecode($children->sig);
355 $key_id = $children->sig->attributes()->key_id[0];
357 $handle = Strings::base64UrlDecode($key_id);
360 $b64url_data = Strings::base64UrlEncode($data);
361 $msg = str_replace(["\n", "\r", " ", "\t"], ["", "", "", ""], $b64url_data);
363 $signable_data = $msg.".".Strings::base64UrlEncode($type).".".Strings::base64UrlEncode($encoding).".".Strings::base64UrlEncode($alg);
366 Logger::log('No author could be decoded. Discarding. Message: ' . $envelope);
370 $key = self::key($handle);
372 Logger::log("Couldn't get a key for handle " . $handle . ". Discarding.");
376 $verify = Crypto::rsaVerify($signable_data, $sig, $key);
378 Logger::log('Message from ' . $handle . ' did not verify. Discarding.');
386 * @brief encrypts data via AES
388 * @param string $key The AES key
389 * @param string $iv The IV (is used for CBC encoding)
390 * @param string $data The data that is to be encrypted
392 * @return string encrypted data
394 private static function aesEncrypt($key, $iv, $data)
396 return openssl_encrypt($data, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
400 * @brief decrypts data via AES
402 * @param string $key The AES key
403 * @param string $iv The IV (is used for CBC encoding)
404 * @param string $encrypted The encrypted data
406 * @return string decrypted data
408 private static function aesDecrypt($key, $iv, $encrypted)
410 return openssl_decrypt($encrypted, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
414 * @brief: Decodes incoming Diaspora message in the new format
416 * @param array $importer Array of the importer user
417 * @param string $raw raw post message
418 * @param boolean $no_exit Don't do an http exit on error
421 * 'message' -> decoded Diaspora XML message
422 * 'author' -> author diaspora handle
423 * 'key' -> author public key (converted to pkcs#8)
424 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
425 * @throws \ImagickException
427 public static function decodeRaw(array $importer, $raw, $no_exit = false)
429 $data = json_decode($raw);
431 // Is it a private post? Then decrypt the outer Salmon
432 if (is_object($data)) {
433 $encrypted_aes_key_bundle = base64_decode($data->aes_key);
434 $ciphertext = base64_decode($data->encrypted_magic_envelope);
436 $outer_key_bundle = '';
437 @openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $importer['prvkey']);
438 $j_outer_key_bundle = json_decode($outer_key_bundle);
440 if (!is_object($j_outer_key_bundle)) {
441 Logger::log('Outer Salmon did not verify. Discarding.');
445 throw new \Friendica\Network\HTTPException\BadRequestException();
449 $outer_iv = base64_decode($j_outer_key_bundle->iv);
450 $outer_key = base64_decode($j_outer_key_bundle->key);
452 $xml = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
457 $basedom = XML::parseString($xml);
459 if (!is_object($basedom)) {
460 Logger::log('Received data does not seem to be an XML. Discarding. '.$xml);
464 throw new \Friendica\Network\HTTPException\BadRequestException();
468 $base = $basedom->children(NAMESPACE_SALMON_ME);
470 // Not sure if this cleaning is needed
471 $data = str_replace([" ", "\t", "\r", "\n"], ["", "", "", ""], $base->data);
473 // Build the signed data
474 $type = $base->data[0]->attributes()->type[0];
475 $encoding = $base->encoding;
477 $signed_data = $data.'.'.Strings::base64UrlEncode($type).'.'.Strings::base64UrlEncode($encoding).'.'.Strings::base64UrlEncode($alg);
479 // This is the signature
480 $signature = Strings::base64UrlDecode($base->sig);
482 // Get the senders' public key
483 $key_id = $base->sig[0]->attributes()->key_id[0];
484 $author_addr = base64_decode($key_id);
485 if ($author_addr == '') {
486 Logger::log('No author could be decoded. Discarding. Message: ' . $xml);
490 throw new \Friendica\Network\HTTPException\BadRequestException();
494 $key = self::key($author_addr);
496 Logger::log("Couldn't get a key for handle " . $author_addr . ". Discarding.");
500 throw new \Friendica\Network\HTTPException\BadRequestException();
504 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
506 Logger::log('Message did not verify. Discarding.');
510 throw new \Friendica\Network\HTTPException\BadRequestException();
514 return ['message' => (string)Strings::base64UrlDecode($base->data),
515 'author' => XML::unescape($author_addr),
516 'key' => (string)$key];
520 * @brief: Decodes incoming Diaspora message in the deprecated format
522 * @param array $importer Array of the importer user
523 * @param string $xml urldecoded Diaspora salmon
526 * 'message' -> decoded Diaspora XML message
527 * 'author' -> author diaspora handle
528 * 'key' -> author public key (converted to pkcs#8)
529 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
530 * @throws \ImagickException
532 public static function decode(array $importer, $xml)
535 $basedom = XML::parseString($xml);
537 if (!is_object($basedom)) {
538 Logger::log("XML is not parseable.");
541 $children = $basedom->children('https://joindiaspora.com/protocol');
543 $inner_aes_key = null;
546 if ($children->header) {
548 $author_link = str_replace('acct:', '', $children->header->author_id);
550 // This happens with posts from a relais
552 Logger::log("This is no private post in the old format", Logger::DEBUG);
556 $encrypted_header = json_decode(base64_decode($children->encrypted_header));
558 $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
559 $ciphertext = base64_decode($encrypted_header->ciphertext);
561 $outer_key_bundle = '';
562 openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $importer['prvkey']);
564 $j_outer_key_bundle = json_decode($outer_key_bundle);
566 $outer_iv = base64_decode($j_outer_key_bundle->iv);
567 $outer_key = base64_decode($j_outer_key_bundle->key);
569 $decrypted = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
571 Logger::log('decrypted: '.$decrypted, Logger::DEBUG);
572 $idom = XML::parseString($decrypted);
574 $inner_iv = base64_decode($idom->iv);
575 $inner_aes_key = base64_decode($idom->aes_key);
577 $author_link = str_replace('acct:', '', $idom->author_id);
580 $dom = $basedom->children(NAMESPACE_SALMON_ME);
582 // figure out where in the DOM tree our data is hiding
585 if ($dom->provenance->data) {
586 $base = $dom->provenance;
587 } elseif ($dom->env->data) {
589 } elseif ($dom->data) {
594 Logger::log('unable to locate salmon data in xml');
595 throw new \Friendica\Network\HTTPException\BadRequestException();
599 // Stash the signature away for now. We have to find their key or it won't be good for anything.
600 $signature = Strings::base64UrlDecode($base->sig);
604 // strip whitespace so our data element will return to one big base64 blob
605 $data = str_replace([" ", "\t", "\r", "\n"], ["", "", "", ""], $base->data);
608 // stash away some other stuff for later
610 $type = $base->data[0]->attributes()->type[0];
611 $keyhash = $base->sig[0]->attributes()->keyhash[0];
612 $encoding = $base->encoding;
616 $signed_data = $data.'.'.Strings::base64UrlEncode($type).'.'.Strings::base64UrlEncode($encoding).'.'.Strings::base64UrlEncode($alg);
620 $data = Strings::base64UrlDecode($data);
624 $inner_decrypted = $data;
626 // Decode the encrypted blob
627 $inner_encrypted = base64_decode($data);
628 $inner_decrypted = self::aesDecrypt($inner_aes_key, $inner_iv, $inner_encrypted);
632 Logger::log('Could not retrieve author URI.');
633 throw new \Friendica\Network\HTTPException\BadRequestException();
635 // Once we have the author URI, go to the web and try to find their public key
636 // (first this will look it up locally if it is in the fcontact cache)
637 // This will also convert diaspora public key from pkcs#1 to pkcs#8
639 Logger::log('Fetching key for '.$author_link);
640 $key = self::key($author_link);
643 Logger::log('Could not retrieve author key.');
644 throw new \Friendica\Network\HTTPException\BadRequestException();
647 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
650 Logger::log('Message did not verify. Discarding.');
651 throw new \Friendica\Network\HTTPException\BadRequestException();
654 Logger::log('Message verified.');
656 return ['message' => (string)$inner_decrypted,
657 'author' => XML::unescape($author_link),
658 'key' => (string)$key];
663 * @brief Dispatches public messages and find the fitting receivers
665 * @param array $msg The post that will be dispatched
667 * @return int The message id of the generated message, "true" or "false" if there was an error
668 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
669 * @throws \ImagickException
671 public static function dispatchPublic($msg)
673 $enabled = intval(Config::get("system", "diaspora_enabled"));
675 Logger::log("diaspora is disabled");
679 if (!($fields = self::validPosting($msg))) {
680 Logger::log("Invalid posting");
684 $importer = ["uid" => 0, "page-flags" => User::PAGE_FLAGS_FREELOVE];
685 $success = self::dispatch($importer, $msg, $fields);
691 * @brief Dispatches the different message types to the different functions
693 * @param array $importer Array of the importer user
694 * @param array $msg The post that will be dispatched
695 * @param SimpleXMLElement $fields SimpleXML object that contains the message
697 * @return int The message id of the generated message, "true" or "false" if there was an error
698 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
699 * @throws \ImagickException
701 public static function dispatch(array $importer, $msg, SimpleXMLElement $fields = null)
703 // The sender is the handle of the contact that sent the message.
704 // This will often be different with relayed messages (for example "like" and "comment")
705 $sender = $msg["author"];
707 // This is only needed for private postings since this is already done for public ones before
708 if (is_null($fields)) {
710 if (!($fields = self::validPosting($msg))) {
711 Logger::log("Invalid posting");
718 $type = $fields->getName();
720 Logger::log("Received message type ".$type." from ".$sender." for user ".$importer["uid"], Logger::DEBUG);
723 case "account_migration":
725 Logger::log('Message with type ' . $type . ' is not private, quitting.');
728 return self::receiveAccountMigration($importer, $fields);
730 case "account_deletion":
731 return self::receiveAccountDeletion($fields);
734 return self::receiveComment($importer, $sender, $fields, $msg["message"]);
738 Logger::log('Message with type ' . $type . ' is not private, quitting.');
741 return self::receiveContactRequest($importer, $fields);
745 Logger::log('Message with type ' . $type . ' is not private, quitting.');
748 return self::receiveConversation($importer, $msg, $fields);
751 return self::receiveLike($importer, $sender, $fields);
755 Logger::log('Message with type ' . $type . ' is not private, quitting.');
758 return self::receiveMessage($importer, $fields);
760 case "participation":
762 Logger::log('Message with type ' . $type . ' is not private, quitting.');
765 return self::receiveParticipation($importer, $fields);
767 case "photo": // Not implemented
768 return self::receivePhoto($importer, $fields);
770 case "poll_participation": // Not implemented
771 return self::receivePollParticipation($importer, $fields);
775 Logger::log('Message with type ' . $type . ' is not private, quitting.');
778 return self::receiveProfile($importer, $fields);
781 return self::receiveReshare($importer, $fields, $msg["message"]);
784 return self::receiveRetraction($importer, $sender, $fields);
786 case "status_message":
787 return self::receiveStatusMessage($importer, $fields, $msg["message"]);
790 Logger::log("Unknown message type ".$type);
796 * @brief Checks if a posting is valid and fetches the data fields.
798 * This function does not only check the signature.
799 * It also does the conversion between the old and the new diaspora format.
801 * @param array $msg Array with the XML, the sender handle and the sender signature
803 * @return bool|SimpleXMLElement If the posting is valid then an array with an SimpleXML object is returned
804 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
805 * @throws \ImagickException
807 private static function validPosting($msg)
809 $data = XML::parseString($msg["message"]);
811 if (!is_object($data)) {
812 Logger::log("No valid XML ".$msg["message"], Logger::DEBUG);
816 // Is this the new or the old version?
817 if ($data->getName() == "XML") {
819 foreach ($data->post->children() as $child) {
827 $type = $element->getName();
830 Logger::log("Got message type ".$type.": ".$msg["message"], Logger::DATA);
832 // All retractions are handled identically from now on.
833 // In the new version there will only be "retraction".
834 if (in_array($type, ["signed_retraction", "relayable_retraction"]))
835 $type = "retraction";
837 if ($type == "request") {
841 $fields = new SimpleXMLElement("<".$type."/>");
844 $author_signature = null;
845 $parent_author_signature = null;
847 foreach ($element->children() as $fieldname => $entry) {
849 // Translation for the old XML structure
850 if ($fieldname == "diaspora_handle") {
851 $fieldname = "author";
853 if ($fieldname == "participant_handles") {
854 $fieldname = "participants";
856 if (in_array($type, ["like", "participation"])) {
857 if ($fieldname == "target_type") {
858 $fieldname = "parent_type";
861 if ($fieldname == "sender_handle") {
862 $fieldname = "author";
864 if ($fieldname == "recipient_handle") {
865 $fieldname = "recipient";
867 if ($fieldname == "root_diaspora_id") {
868 $fieldname = "root_author";
870 if ($type == "status_message") {
871 if ($fieldname == "raw_message") {
875 if ($type == "retraction") {
876 if ($fieldname == "post_guid") {
877 $fieldname = "target_guid";
879 if ($fieldname == "type") {
880 $fieldname = "target_type";
885 if (($fieldname == "author_signature") && ($entry != "")) {
886 $author_signature = base64_decode($entry);
887 } elseif (($fieldname == "parent_author_signature") && ($entry != "")) {
888 $parent_author_signature = base64_decode($entry);
889 } elseif (!in_array($fieldname, ["author_signature", "parent_author_signature", "target_author_signature"])) {
890 if ($signed_data != "") {
894 $signed_data .= $entry;
896 if (!in_array($fieldname, ["parent_author_signature", "target_author_signature"])
897 || ($orig_type == "relayable_retraction")
899 XML::copy($entry, $fields, $fieldname);
903 // This is something that shouldn't happen at all.
904 if (in_array($type, ["status_message", "reshare", "profile"])) {
905 if ($msg["author"] != $fields->author) {
906 Logger::log("Message handle is not the same as envelope sender. Quitting this message.");
911 // Only some message types have signatures. So we quit here for the other types.
912 if (!in_array($type, ["comment", "like"])) {
915 // No author_signature? This is a must, so we quit.
916 if (!isset($author_signature)) {
917 Logger::log("No author signature for type ".$type." - Message: ".$msg["message"], Logger::DEBUG);
921 if (isset($parent_author_signature)) {
922 $key = self::key($msg["author"]);
924 Logger::log("No key found for parent author ".$msg["author"], Logger::DEBUG);
928 if (!Crypto::rsaVerify($signed_data, $parent_author_signature, $key, "sha256")) {
929 Logger::log("No valid parent author signature for parent author ".$msg["author"]. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$parent_author_signature, Logger::DEBUG);
934 $key = self::key($fields->author);
936 Logger::log("No key found for author ".$fields->author, Logger::DEBUG);
940 if (!Crypto::rsaVerify($signed_data, $author_signature, $key, "sha256")) {
941 Logger::log("No valid author signature for author ".$fields->author. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$author_signature, Logger::DEBUG);
949 * @brief Fetches the public key for a given handle
951 * @param string $handle The handle
953 * @return string The public key
954 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
955 * @throws \ImagickException
957 private static function key($handle)
959 $handle = strval($handle);
961 Logger::log("Fetching diaspora key for: ".$handle);
963 $r = self::personByHandle($handle);
972 * @brief Fetches data for a given handle
974 * @param string $handle The handle
975 * @param boolean $update true = always update, false = never update, null = update when not found or outdated
977 * @return array the queried data
978 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
979 * @throws \ImagickException
981 public static function personByHandle($handle, $update = null)
983 $person = DBA::selectFirst('fcontact', [], ['network' => Protocol::DIASPORA, 'addr' => $handle]);
984 if (!DBA::isResult($person)) {
985 $urls = [$handle, str_replace('http://', 'https://', $handle), Strings::normaliseLink($handle)];
986 $person = DBA::selectFirst('fcontact', [], ['network' => Protocol::DIASPORA, 'url' => $urls]);
989 if (DBA::isResult($person)) {
990 Logger::debug("In cache " . print_r($person, true));
992 if (is_null($update)) {
993 // update record occasionally so it doesn't get stale
994 $d = strtotime($person["updated"]." +00:00");
995 if ($d < strtotime("now - 14 days")) {
999 if ($person["guid"] == "") {
1003 } elseif (is_null($update)) {
1004 $update = !DBA::isResult($person);
1010 Logger::log("create or refresh", Logger::DEBUG);
1011 $r = Probe::uri($handle, Protocol::DIASPORA);
1013 // Note that Friendica contacts will return a "Diaspora person"
1014 // if Diaspora connectivity is enabled on their server
1015 if ($r && ($r["network"] === Protocol::DIASPORA)) {
1016 self::updateFContact($r);
1018 $person = self::personByHandle($handle, false);
1026 * @brief Updates the fcontact table
1028 * @param array $arr The fcontact data
1029 * @throws \Exception
1031 private static function updateFContact($arr)
1033 $fields = ['name' => $arr["name"], 'photo' => $arr["photo"],
1034 'request' => $arr["request"], 'nick' => $arr["nick"],
1035 'addr' => strtolower($arr["addr"]), 'guid' => $arr["guid"],
1036 'batch' => $arr["batch"], 'notify' => $arr["notify"],
1037 'poll' => $arr["poll"], 'confirm' => $arr["confirm"],
1038 'alias' => $arr["alias"], 'pubkey' => $arr["pubkey"],
1039 'updated' => DateTimeFormat::utcNow()];
1041 $condition = ['url' => $arr["url"], 'network' => $arr["network"]];
1043 DBA::update('fcontact', $fields, $condition, true);
1047 * @brief get a handle (user@domain.tld) from a given contact id
1049 * @param int $contact_id The id in the contact table
1050 * @param int $pcontact_id The id in the contact table (Used for the public contact)
1052 * @return string the handle
1053 * @throws \Exception
1055 private static function handleFromContact($contact_id, $pcontact_id = 0)
1059 Logger::log("contact id is ".$contact_id." - pcontact id is ".$pcontact_id, Logger::DEBUG);
1061 if ($pcontact_id != 0) {
1062 $contact = DBA::selectFirst('contact', ['addr'], ['id' => $pcontact_id]);
1064 if (DBA::isResult($contact) && !empty($contact["addr"])) {
1065 return strtolower($contact["addr"]);
1070 "SELECT `network`, `addr`, `self`, `url`, `nick` FROM `contact` WHERE `id` = %d",
1074 if (DBA::isResult($r)) {
1077 Logger::log("contact 'self' = ".$contact['self']." 'url' = ".$contact['url'], Logger::DEBUG);
1079 if ($contact['addr'] != "") {
1080 $handle = $contact['addr'];
1082 $baseurl_start = strpos($contact['url'], '://') + 3;
1083 // allows installations in a subdirectory--not sure how Diaspora will handle
1084 $baseurl_length = strpos($contact['url'], '/profile') - $baseurl_start;
1085 $baseurl = substr($contact['url'], $baseurl_start, $baseurl_length);
1086 $handle = $contact['nick'].'@'.$baseurl;
1090 return strtolower($handle);
1094 * @brief get a url (scheme://domain.tld/u/user) from a given Diaspora*
1097 * @param mixed $fcontact_guid Hexadecimal string guid
1099 * @return string the contact url or null
1100 * @throws \Exception
1102 public static function urlFromContactGuid($fcontact_guid)
1104 Logger::log("fcontact guid is ".$fcontact_guid, Logger::DEBUG);
1107 "SELECT `url` FROM `fcontact` WHERE `url` != '' AND `network` = '%s' AND `guid` = '%s'",
1108 DBA::escape(Protocol::DIASPORA),
1109 DBA::escape($fcontact_guid)
1112 if (DBA::isResult($r)) {
1113 return $r[0]['url'];
1120 * @brief Get a contact id for a given handle
1122 * @todo Move to Friendica\Model\Contact
1124 * @param int $uid The user id
1125 * @param string $handle The handle in the format user@domain.tld
1127 * @return array Contact data
1128 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1129 * @throws \ImagickException
1131 private static function contactByHandle($uid, $handle)
1133 $cid = Contact::getIdForURL($handle, $uid);
1135 $handle_parts = explode("@", $handle);
1136 $nurl_sql = "%%://" . $handle_parts[1] . "%%/profile/" . $handle_parts[0];
1137 $cid = Contact::getIdForURL($nurl_sql, $uid);
1141 Logger::log("Haven't found a contact for user " . $uid . " and handle " . $handle, Logger::DEBUG);
1145 $contact = DBA::selectFirst('contact', [], ['id' => $cid]);
1146 if (!DBA::isResult($contact)) {
1147 // This here shouldn't happen at all
1148 Logger::log("Haven't found a contact for user " . $uid . " and handle " . $handle, Logger::DEBUG);
1156 * Checks if the given contact url does support ActivityPub
1158 * @param string $url profile url
1159 * @param boolean $update true = always update, false = never update, null = update when not found or outdated
1161 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1162 * @throws \ImagickException
1164 public static function isSupportedByContactUrl($url, $update = null)
1166 return !empty(self::personByHandle($url, $update));
1170 * @brief Check if posting is allowed for this contact
1172 * @param array $importer Array of the importer user
1173 * @param array $contact The contact that is checked
1174 * @param bool $is_comment Is the check for a comment?
1176 * @return bool is the contact allowed to post?
1178 private static function postAllow(array $importer, array $contact, $is_comment = false)
1181 * Perhaps we were already sharing with this person. Now they're sharing with us.
1182 * That makes us friends.
1183 * Normally this should have handled by getting a request - but this could get lost
1185 // It is deactivated by now, due to side effects. See issue https://github.com/friendica/friendica/pull/4033
1186 // It is not removed by now. Possibly the code is needed?
1187 //if (!$is_comment && $contact["rel"] == Contact::FOLLOWER && in_array($importer["page-flags"], array(User::PAGE_FLAGS_FREELOVE))) {
1190 // array('rel' => Contact::FRIEND, 'writable' => true),
1191 // array('id' => $contact["id"], 'uid' => $contact["uid"])
1194 // $contact["rel"] = Contact::FRIEND;
1195 // Logger::log("defining user ".$contact["nick"]." as friend");
1198 // Contact server is blocked
1199 if (Network::isUrlBlocked($contact['url'])) {
1201 // We don't seem to like that person
1202 } elseif ($contact["blocked"]) {
1203 // Maybe blocked, don't accept.
1205 // We are following this person?
1206 } elseif (($contact["rel"] == Contact::SHARING) || ($contact["rel"] == Contact::FRIEND)) {
1207 // Yes, then it is fine.
1209 // Is it a post to a community?
1210 } elseif (($contact["rel"] == Contact::FOLLOWER) && in_array($importer["page-flags"], [User::PAGE_FLAGS_COMMUNITY, User::PAGE_FLAGS_PRVGROUP])) {
1213 // Is the message a global user or a comment?
1214 } elseif (($importer["uid"] == 0) || $is_comment) {
1215 // Messages for the global users and comments are always accepted
1223 * @brief Fetches the contact id for a handle and checks if posting is allowed
1225 * @param array $importer Array of the importer user
1226 * @param string $handle The checked handle in the format user@domain.tld
1227 * @param bool $is_comment Is the check for a comment?
1229 * @return array The contact data
1230 * @throws \Exception
1232 private static function allowedContactByHandle(array $importer, $handle, $is_comment = false)
1234 $contact = self::contactByHandle($importer["uid"], $handle);
1236 Logger::log("A Contact for handle ".$handle." and user ".$importer["uid"]." was not found");
1237 // If a contact isn't found, we accept it anyway if it is a comment
1238 if ($is_comment && ($importer["uid"] != 0)) {
1239 return self::contactByHandle(0, $handle);
1240 } elseif ($is_comment) {
1247 if (!self::postAllow($importer, $contact, $is_comment)) {
1248 Logger::log("The handle: ".$handle." is not allowed to post to user ".$importer["uid"]);
1255 * @brief Does the message already exists on the system?
1257 * @param int $uid The user id
1258 * @param string $guid The guid of the message
1260 * @return int|bool message id if the message already was stored into the system - or false.
1261 * @throws \Exception
1263 private static function messageExists($uid, $guid)
1265 $item = Item::selectFirst(['id'], ['uid' => $uid, 'guid' => $guid]);
1266 if (DBA::isResult($item)) {
1267 Logger::log("message ".$guid." already exists for user ".$uid);
1275 * @brief Checks for links to posts in a message
1277 * @param array $item The item array
1280 private static function fetchGuid(array $item)
1282 $expression = "=diaspora://.*?/post/([0-9A-Za-z\-_@.:]{15,254}[0-9A-Za-z])=ism";
1283 preg_replace_callback(
1285 function ($match) use ($item) {
1286 self::fetchGuidSub($match, $item);
1291 preg_replace_callback(
1292 "&\[url=/?posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
1293 function ($match) use ($item) {
1294 self::fetchGuidSub($match, $item);
1301 * @brief Checks for relative /people/* links in an item body to match local
1302 * contacts or prepends the remote host taken from the author link.
1304 * @param string $body The item body to replace links from
1305 * @param string $author_link The author link for missing local contact fallback
1307 * @return string the replaced string
1309 public static function replacePeopleGuid($body, $author_link)
1311 $return = preg_replace_callback(
1312 "&\[url=/people/([^\[\]]*)\](.*)\[\/url\]&Usi",
1313 function ($match) use ($author_link) {
1315 // 0 => '[url=/people/0123456789abcdef]Foo Bar[/url]'
1316 // 1 => '0123456789abcdef'
1318 $handle = self::urlFromContactGuid($match[1]);
1321 $return = '@[url='.$handle.']'.$match[2].'[/url]';
1323 // No local match, restoring absolute remote URL from author scheme and host
1324 $author_url = parse_url($author_link);
1325 $return = '[url='.$author_url['scheme'].'://'.$author_url['host'].'/people/'.$match[1].']'.$match[2].'[/url]';
1337 * @brief sub function of "fetchGuid" which checks for links in messages
1339 * @param array $match array containing a link that has to be checked for a message link
1340 * @param array $item The item array
1342 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1343 * @throws \ImagickException
1345 private static function fetchGuidSub($match, $item)
1347 if (!self::storeByGuid($match[1], $item["author-link"])) {
1348 self::storeByGuid($match[1], $item["owner-link"]);
1353 * @brief Fetches an item with a given guid from a given server
1355 * @param string $guid the message guid
1356 * @param string $server The server address
1357 * @param int $uid The user id of the user
1359 * @return int the message id of the stored message or false
1360 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1361 * @throws \ImagickException
1363 private static function storeByGuid($guid, $server, $uid = 0)
1365 $serverparts = parse_url($server);
1367 if (empty($serverparts["host"]) || empty($serverparts["scheme"])) {
1371 $server = $serverparts["scheme"]."://".$serverparts["host"];
1373 Logger::log("Trying to fetch item ".$guid." from ".$server, Logger::DEBUG);
1375 $msg = self::message($guid, $server);
1381 Logger::log("Successfully fetched item ".$guid." from ".$server, Logger::DEBUG);
1383 // Now call the dispatcher
1384 return self::dispatchPublic($msg);
1388 * @brief Fetches a message from a server
1390 * @param string $guid message guid
1391 * @param string $server The url of the server
1392 * @param int $level Endless loop prevention
1395 * 'message' => The message XML
1396 * 'author' => The author handle
1397 * 'key' => The public key of the author
1398 * @throws \Exception
1400 private static function message($guid, $server, $level = 0)
1406 // This will work for new Diaspora servers and Friendica servers from 3.5
1407 $source_url = $server."/fetch/post/".urlencode($guid);
1409 Logger::log("Fetch post from ".$source_url, Logger::DEBUG);
1411 $envelope = Network::fetchUrl($source_url);
1413 Logger::log("Envelope was fetched.", Logger::DEBUG);
1414 $x = self::verifyMagicEnvelope($envelope);
1416 Logger::log("Envelope could not be verified.", Logger::DEBUG);
1418 Logger::log("Envelope was verified.", Logger::DEBUG);
1428 $source_xml = XML::parseString($x);
1430 if (!is_object($source_xml)) {
1434 if ($source_xml->post->reshare) {
1435 // Reshare of a reshare - old Diaspora version
1436 Logger::log("Message is a reshare", Logger::DEBUG);
1437 return self::message($source_xml->post->reshare->root_guid, $server, ++$level);
1438 } elseif ($source_xml->getName() == "reshare") {
1439 // Reshare of a reshare - new Diaspora version
1440 Logger::log("Message is a new reshare", Logger::DEBUG);
1441 return self::message($source_xml->root_guid, $server, ++$level);
1446 // Fetch the author - for the old and the new Diaspora version
1447 if ($source_xml->post->status_message && $source_xml->post->status_message->diaspora_handle) {
1448 $author = (string)$source_xml->post->status_message->diaspora_handle;
1449 } elseif ($source_xml->author && ($source_xml->getName() == "status_message")) {
1450 $author = (string)$source_xml->author;
1453 // If this isn't a "status_message" then quit
1455 Logger::log("Message doesn't seem to be a status message", Logger::DEBUG);
1459 $msg = ["message" => $x, "author" => $author];
1461 $msg["key"] = self::key($msg["author"]);
1467 * @brief Fetches an item with a given URL
1469 * @param string $url the message url
1471 * @return int the message id of the stored message or false
1472 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1473 * @throws \ImagickException
1475 public static function fetchByURL($url, $uid = 0)
1477 // Check for Diaspora (and Friendica) typical paths
1478 if (!preg_match("=(https?://.+)/(?:posts|display)/([a-zA-Z0-9-_@.:%]+[a-zA-Z0-9])=i", $url, $matches)) {
1482 $guid = urldecode($matches[2]);
1484 $item = Item::selectFirst(['id'], ['guid' => $guid, 'uid' => $uid]);
1485 if (DBA::isResult($item)) {
1489 self::storeByGuid($guid, $matches[1], $uid);
1491 $item = Item::selectFirst(['id'], ['guid' => $guid, 'uid' => $uid]);
1492 if (DBA::isResult($item)) {
1500 * @brief Fetches the item record of a given guid
1502 * @param int $uid The user id
1503 * @param string $guid message guid
1504 * @param string $author The handle of the item
1505 * @param array $contact The contact of the item owner
1507 * @return array the item record
1508 * @throws \Exception
1510 private static function parentItem($uid, $guid, $author, array $contact)
1512 $fields = ['id', 'parent', 'body', 'wall', 'uri', 'guid', 'private', 'origin',
1513 'author-name', 'author-link', 'author-avatar',
1514 'owner-name', 'owner-link', 'owner-avatar'];
1515 $condition = ['uid' => $uid, 'guid' => $guid];
1516 $item = Item::selectFirst($fields, $condition);
1518 if (!DBA::isResult($item)) {
1519 $person = self::personByHandle($author);
1520 $result = self::storeByGuid($guid, $person["url"], $uid);
1522 // We don't have an url for items that arrived at the public dispatcher
1523 if (!$result && !empty($contact["url"])) {
1524 $result = self::storeByGuid($guid, $contact["url"], $uid);
1528 Logger::log("Fetched missing item ".$guid." - result: ".$result, Logger::DEBUG);
1530 $item = Item::selectFirst($fields, $condition);
1534 if (!DBA::isResult($item)) {
1535 Logger::log("parent item not found: parent: ".$guid." - user: ".$uid);
1538 Logger::log("parent item found: parent: ".$guid." - user: ".$uid);
1544 * @brief returns contact details
1546 * @param array $def_contact The default contact if the person isn't found
1547 * @param array $person The record of the person
1548 * @param int $uid The user id
1551 * 'cid' => contact id
1552 * 'network' => network type
1553 * @throws \Exception
1555 private static function authorContactByUrl($def_contact, $person, $uid)
1557 $condition = ['nurl' => Strings::normaliseLink($person["url"]), 'uid' => $uid];
1558 $contact = DBA::selectFirst('contact', ['id', 'network'], $condition);
1559 if (DBA::isResult($contact)) {
1560 $cid = $contact["id"];
1561 $network = $contact["network"];
1563 $cid = $def_contact["id"];
1564 $network = Protocol::DIASPORA;
1567 return ["cid" => $cid, "network" => $network];
1571 * @brief Is the profile a hubzilla profile?
1573 * @param string $url The profile link
1575 * @return bool is it a hubzilla server?
1577 public static function isRedmatrix($url)
1579 return(strstr($url, "/channel/"));
1583 * @brief Generate a post link with a given handle and message guid
1585 * @param string $addr The user handle
1586 * @param string $guid message guid
1587 * @param string $parent_guid optional parent guid
1589 * @return string the post link
1590 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1591 * @throws \ImagickException
1593 private static function plink($addr, $guid, $parent_guid = '')
1595 $contact = Contact::getDetailsByAddr($addr);
1599 if ($parent_guid != '') {
1600 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $parent_guid . "#" . $guid;
1602 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $guid;
1606 if ($contact["network"] == Protocol::DFRN) {
1607 return str_replace("/profile/" . $contact["nick"] . "/", "/display/" . $guid, $contact["url"] . "/");
1610 if (self::isRedmatrix($contact["url"])) {
1611 return $contact["url"] . "/?mid=" . $guid;
1614 if ($parent_guid != '') {
1615 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $parent_guid . "#" . $guid;
1617 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $guid;
1622 * @brief Receives account migration
1624 * @param array $importer Array of the importer user
1625 * @param object $data The message object
1627 * @return bool Success
1628 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1629 * @throws \ImagickException
1631 private static function receiveAccountMigration(array $importer, $data)
1633 $old_handle = Strings::escapeTags(XML::unescape($data->author));
1634 $new_handle = Strings::escapeTags(XML::unescape($data->profile->author));
1635 $signature = Strings::escapeTags(XML::unescape($data->signature));
1637 $contact = self::contactByHandle($importer["uid"], $old_handle);
1639 Logger::log("cannot find contact for sender: ".$old_handle." and user ".$importer["uid"]);
1643 Logger::log("Got migration for ".$old_handle.", to ".$new_handle." with user ".$importer["uid"]);
1646 $signed_text = 'AccountMigration:'.$old_handle.':'.$new_handle;
1647 $key = self::key($old_handle);
1648 if (!Crypto::rsaVerify($signed_text, $signature, $key, "sha256")) {
1649 Logger::log('No valid signature for migration.');
1653 // Update the profile
1654 self::receiveProfile($importer, $data->profile);
1656 // change the technical stuff in contact and gcontact
1657 $data = Probe::uri($new_handle);
1658 if ($data['network'] == Protocol::PHANTOM) {
1659 Logger::log('Account for '.$new_handle." couldn't be probed.");
1663 $fields = ['url' => $data['url'], 'nurl' => Strings::normaliseLink($data['url']),
1664 'name' => $data['name'], 'nick' => $data['nick'],
1665 'addr' => $data['addr'], 'batch' => $data['batch'],
1666 'notify' => $data['notify'], 'poll' => $data['poll'],
1667 'network' => $data['network']];
1669 DBA::update('contact', $fields, ['addr' => $old_handle]);
1671 $fields = ['url' => $data['url'], 'nurl' => Strings::normaliseLink($data['url']),
1672 'name' => $data['name'], 'nick' => $data['nick'],
1673 'addr' => $data['addr'], 'connect' => $data['addr'],
1674 'notify' => $data['notify'], 'photo' => $data['photo'],
1675 'server_url' => $data['baseurl'], 'network' => $data['network']];
1677 DBA::update('gcontact', $fields, ['addr' => $old_handle]);
1679 Logger::log('Contacts are updated.');
1685 * @brief Processes an account deletion
1687 * @param object $data The message object
1689 * @return bool Success
1690 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1692 private static function receiveAccountDeletion($data)
1694 $author = Strings::escapeTags(XML::unescape($data->author));
1696 $contacts = DBA::select('contact', ['id'], ['addr' => $author]);
1697 while ($contact = DBA::fetch($contacts)) {
1698 Contact::remove($contact["id"]);
1701 DBA::delete('gcontact', ['addr' => $author]);
1703 Logger::log('Removed contacts for ' . $author);
1709 * @brief Fetch the uri from our database if we already have this item (maybe from ourselves)
1711 * @param string $author Author handle
1712 * @param string $guid Message guid
1713 * @param boolean $onlyfound Only return uri when found in the database
1715 * @return string The constructed uri or the one from our database
1716 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1717 * @throws \ImagickException
1719 private static function getUriFromGuid($author, $guid, $onlyfound = false)
1721 $item = Item::selectFirst(['uri'], ['guid' => $guid]);
1722 if (DBA::isResult($item)) {
1723 return $item["uri"];
1724 } elseif (!$onlyfound) {
1725 $person = self::personByHandle($author);
1727 $parts = parse_url($person['url']);
1728 unset($parts['path']);
1729 $host_url = Network::unparseURL($parts);
1731 return $host_url . '/objects/' . $guid;
1738 * @brief Fetch the guid from our database with a given uri
1740 * @param string $uri Message uri
1741 * @param string $uid Author handle
1743 * @return string The post guid
1744 * @throws \Exception
1746 private static function getGuidFromUri($uri, $uid)
1748 $item = Item::selectFirst(['guid'], ['uri' => $uri, 'uid' => $uid]);
1749 if (DBA::isResult($item)) {
1750 return $item["guid"];
1757 * @brief Find the best importer for a comment, like, ...
1759 * @param string $guid The guid of the item
1761 * @return array|boolean the origin owner of that post - or false
1762 * @throws \Exception
1764 private static function importerForGuid($guid)
1766 $item = Item::selectFirst(['uid'], ['origin' => true, 'guid' => $guid]);
1767 if (DBA::isResult($item)) {
1768 Logger::log("Found user ".$item['uid']." as owner of item ".$guid, Logger::DEBUG);
1769 $contact = DBA::selectFirst('contact', [], ['self' => true, 'uid' => $item['uid']]);
1770 if (DBA::isResult($contact)) {
1778 * @brief Processes an incoming comment
1780 * @param array $importer Array of the importer user
1781 * @param string $sender The sender of the message
1782 * @param object $data The message object
1783 * @param string $xml The original XML of the message
1785 * @return int The message id of the generated comment or "false" if there was an error
1786 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1787 * @throws \ImagickException
1789 private static function receiveComment(array $importer, $sender, $data, $xml)
1791 $author = Strings::escapeTags(XML::unescape($data->author));
1792 $guid = Strings::escapeTags(XML::unescape($data->guid));
1793 $parent_guid = Strings::escapeTags(XML::unescape($data->parent_guid));
1794 $text = XML::unescape($data->text);
1796 if (isset($data->created_at)) {
1797 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
1799 $created_at = DateTimeFormat::utcNow();
1802 if (isset($data->thread_parent_guid)) {
1803 $thread_parent_guid = Strings::escapeTags(XML::unescape($data->thread_parent_guid));
1804 $thr_uri = self::getUriFromGuid("", $thread_parent_guid, true);
1809 $contact = self::allowedContactByHandle($importer, $sender, true);
1814 $message_id = self::messageExists($importer["uid"], $guid);
1819 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
1820 if (!$parent_item) {
1824 $person = self::personByHandle($author);
1825 if (!is_array($person)) {
1826 Logger::log("unable to find author details");
1830 // Fetch the contact id - if we know this contact
1831 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
1835 $datarray["uid"] = $importer["uid"];
1836 $datarray["contact-id"] = $author_contact["cid"];
1837 $datarray["network"] = $author_contact["network"];
1839 $datarray["author-link"] = $person["url"];
1840 $datarray["author-id"] = Contact::getIdForURL($person["url"], 0);
1842 $datarray["owner-link"] = $contact["url"];
1843 $datarray["owner-id"] = Contact::getIdForURL($contact["url"], 0);
1845 $datarray["guid"] = $guid;
1846 $datarray["uri"] = self::getUriFromGuid($author, $guid);
1848 $datarray["verb"] = ACTIVITY_POST;
1849 $datarray["gravity"] = GRAVITY_COMMENT;
1851 if ($thr_uri != "") {
1852 $datarray["parent-uri"] = $thr_uri;
1854 $datarray["parent-uri"] = $parent_item["uri"];
1857 $datarray["object-type"] = ACTIVITY_OBJ_COMMENT;
1859 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
1860 $datarray["source"] = $xml;
1862 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
1864 $datarray["plink"] = self::plink($author, $guid, $parent_item['guid']);
1866 $body = Markdown::toBBCode($text);
1868 $datarray["body"] = self::replacePeopleGuid($body, $person["url"]);
1870 self::fetchGuid($datarray);
1872 // If we are the origin of the parent we store the original data.
1873 // We notify our followers during the item storage.
1874 if ($parent_item["origin"]) {
1875 $datarray['diaspora_signed_text'] = json_encode($data);
1878 $message_id = Item::insert($datarray);
1880 if ($message_id <= 0) {
1885 Logger::log("Stored comment ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
1886 if ($datarray['uid'] == 0) {
1887 Item::distribute($message_id, json_encode($data));
1895 * @brief processes and stores private messages
1897 * @param array $importer Array of the importer user
1898 * @param array $contact The contact of the message
1899 * @param object $data The message object
1900 * @param array $msg Array of the processed message, author handle and key
1901 * @param object $mesg The private message
1902 * @param array $conversation The conversation record to which this message belongs
1904 * @return bool "true" if it was successful
1905 * @throws \Exception
1907 private static function receiveConversationMessage(array $importer, array $contact, $data, $msg, $mesg, $conversation)
1909 $author = Strings::escapeTags(XML::unescape($data->author));
1910 $guid = Strings::escapeTags(XML::unescape($data->guid));
1911 $subject = Strings::escapeTags(XML::unescape($data->subject));
1913 // "diaspora_handle" is the element name from the old version
1914 // "author" is the element name from the new version
1915 if ($mesg->author) {
1916 $msg_author = Strings::escapeTags(XML::unescape($mesg->author));
1917 } elseif ($mesg->diaspora_handle) {
1918 $msg_author = Strings::escapeTags(XML::unescape($mesg->diaspora_handle));
1923 $msg_guid = Strings::escapeTags(XML::unescape($mesg->guid));
1924 $msg_conversation_guid = Strings::escapeTags(XML::unescape($mesg->conversation_guid));
1925 $msg_text = XML::unescape($mesg->text);
1926 $msg_created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($mesg->created_at)));
1928 if ($msg_conversation_guid != $guid) {
1929 Logger::log("message conversation guid does not belong to the current conversation.");
1933 $body = Markdown::toBBCode($msg_text);
1934 $message_uri = $msg_author.":".$msg_guid;
1936 $person = self::personByHandle($msg_author);
1938 return Mail::insert([
1939 'uid' => $importer['uid'],
1940 'guid' => $msg_guid,
1941 'convid' => $conversation['id'],
1942 'from-name' => $person['name'],
1943 'from-photo' => $person['photo'],
1944 'from-url' => $person['url'],
1945 'contact-id' => $contact['id'],
1946 'title' => $subject,
1948 'uri' => $message_uri,
1949 'parent-uri' => $author . ':' . $guid,
1950 'created' => $msg_created_at
1955 * @brief Processes new private messages (answers to private messages are processed elsewhere)
1957 * @param array $importer Array of the importer user
1958 * @param array $msg Array of the processed message, author handle and key
1959 * @param object $data The message object
1961 * @return bool Success
1962 * @throws \Exception
1964 private static function receiveConversation(array $importer, $msg, $data)
1966 $author = Strings::escapeTags(XML::unescape($data->author));
1967 $guid = Strings::escapeTags(XML::unescape($data->guid));
1968 $subject = Strings::escapeTags(XML::unescape($data->subject));
1969 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
1970 $participants = Strings::escapeTags(XML::unescape($data->participants));
1972 $messages = $data->message;
1974 if (!count($messages)) {
1975 Logger::log("empty conversation");
1979 $contact = self::allowedContactByHandle($importer, $msg["author"], true);
1984 $conversation = DBA::selectFirst('conv', [], ['uid' => $importer["uid"], 'guid' => $guid]);
1985 if (!DBA::isResult($conversation)) {
1987 "INSERT INTO `conv` (`uid`, `guid`, `creator`, `created`, `updated`, `subject`, `recips`)
1988 VALUES (%d, '%s', '%s', '%s', '%s', '%s', '%s')",
1989 intval($importer["uid"]),
1991 DBA::escape($author),
1992 DBA::escape($created_at),
1993 DBA::escape(DateTimeFormat::utcNow()),
1994 DBA::escape($subject),
1995 DBA::escape($participants)
1998 $conversation = DBA::selectFirst('conv', [], ['uid' => $importer["uid"], 'guid' => $guid]);
2001 if (!$conversation) {
2002 Logger::log("unable to create conversation.");
2006 foreach ($messages as $mesg) {
2007 self::receiveConversationMessage($importer, $contact, $data, $msg, $mesg, $conversation);
2014 * @brief Processes "like" messages
2016 * @param array $importer Array of the importer user
2017 * @param string $sender The sender of the message
2018 * @param object $data The message object
2020 * @return int The message id of the generated like or "false" if there was an error
2021 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2022 * @throws \ImagickException
2024 private static function receiveLike(array $importer, $sender, $data)
2026 $author = Strings::escapeTags(XML::unescape($data->author));
2027 $guid = Strings::escapeTags(XML::unescape($data->guid));
2028 $parent_guid = Strings::escapeTags(XML::unescape($data->parent_guid));
2029 $parent_type = Strings::escapeTags(XML::unescape($data->parent_type));
2030 $positive = Strings::escapeTags(XML::unescape($data->positive));
2032 // likes on comments aren't supported by Diaspora - only on posts
2033 // But maybe this will be supported in the future, so we will accept it.
2034 if (!in_array($parent_type, ["Post", "Comment"])) {
2038 $contact = self::allowedContactByHandle($importer, $sender, true);
2043 $message_id = self::messageExists($importer["uid"], $guid);
2048 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
2049 if (!$parent_item) {
2053 $person = self::personByHandle($author);
2054 if (!is_array($person)) {
2055 Logger::log("unable to find author details");
2059 // Fetch the contact id - if we know this contact
2060 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
2062 // "positive" = "false" would be a Dislike - wich isn't currently supported by Diaspora
2063 // We would accept this anyhow.
2064 if ($positive == "true") {
2065 $verb = ACTIVITY_LIKE;
2067 $verb = ACTIVITY_DISLIKE;
2072 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
2074 $datarray["uid"] = $importer["uid"];
2075 $datarray["contact-id"] = $author_contact["cid"];
2076 $datarray["network"] = $author_contact["network"];
2078 $datarray["owner-link"] = $datarray["author-link"] = $person["url"];
2079 $datarray["owner-id"] = $datarray["author-id"] = Contact::getIdForURL($person["url"], 0);
2081 $datarray["guid"] = $guid;
2082 $datarray["uri"] = self::getUriFromGuid($author, $guid);
2084 $datarray["verb"] = $verb;
2085 $datarray["gravity"] = GRAVITY_ACTIVITY;
2086 $datarray["parent-uri"] = $parent_item["uri"];
2088 $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
2090 $datarray["body"] = $verb;
2092 // Diaspora doesn't provide a date for likes
2093 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = DateTimeFormat::utcNow();
2095 // like on comments have the comment as parent. So we need to fetch the toplevel parent
2096 if ($parent_item["id"] != $parent_item["parent"]) {
2097 $toplevel = Item::selectFirst(['origin'], ['id' => $parent_item["parent"]]);
2098 $origin = $toplevel["origin"];
2100 $origin = $parent_item["origin"];
2103 // If we are the origin of the parent we store the original data.
2104 // We notify our followers during the item storage.
2106 $datarray['diaspora_signed_text'] = json_encode($data);
2109 $message_id = Item::insert($datarray);
2111 if ($message_id <= 0) {
2116 Logger::log("Stored like ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
2117 if ($datarray['uid'] == 0) {
2118 Item::distribute($message_id, json_encode($data));
2126 * @brief Processes private messages
2128 * @param array $importer Array of the importer user
2129 * @param object $data The message object
2131 * @return bool Success?
2132 * @throws \Exception
2134 private static function receiveMessage(array $importer, $data)
2136 $author = Strings::escapeTags(XML::unescape($data->author));
2137 $guid = Strings::escapeTags(XML::unescape($data->guid));
2138 $conversation_guid = Strings::escapeTags(XML::unescape($data->conversation_guid));
2139 $text = XML::unescape($data->text);
2140 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
2142 $contact = self::allowedContactByHandle($importer, $author, true);
2147 $conversation = null;
2149 $condition = ['uid' => $importer["uid"], 'guid' => $conversation_guid];
2150 $conversation = DBA::selectFirst('conv', [], $condition);
2152 if (!DBA::isResult($conversation)) {
2153 Logger::log("conversation not available.");
2157 $message_uri = $author.":".$guid;
2159 $person = self::personByHandle($author);
2161 Logger::log("unable to find author details");
2165 $body = Markdown::toBBCode($text);
2167 $body = self::replacePeopleGuid($body, $person["url"]);
2169 return Mail::insert([
2170 'uid' => $importer['uid'],
2172 'convid' => $conversation['id'],
2173 'from-name' => $person['name'],
2174 'from-photo' => $person['photo'],
2175 'from-url' => $person['url'],
2176 'contact-id' => $contact['id'],
2177 'title' => $conversation['subject'],
2180 'uri' => $message_uri,
2181 'parent-uri' => $author.":".$conversation['guid'],
2182 'created' => $created_at
2187 * @brief Processes participations - unsupported by now
2189 * @param array $importer Array of the importer user
2190 * @param object $data The message object
2192 * @return bool always true
2193 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2194 * @throws \ImagickException
2196 private static function receiveParticipation(array $importer, $data)
2198 $author = strtolower(Strings::escapeTags(XML::unescape($data->author)));
2199 $parent_guid = Strings::escapeTags(XML::unescape($data->parent_guid));
2201 $contact_id = Contact::getIdForURL($author);
2203 Logger::log('Contact not found: '.$author);
2207 $person = self::personByHandle($author);
2208 if (!is_array($person)) {
2209 Logger::log("Person not found: ".$author);
2213 $item = Item::selectFirst(['id'], ['guid' => $parent_guid, 'origin' => true, 'private' => false]);
2214 if (!DBA::isResult($item)) {
2215 Logger::log('Item not found, no origin or private: '.$parent_guid);
2219 $author_parts = explode('@', $author);
2220 if (isset($author_parts[1])) {
2221 $server = $author_parts[1];
2223 // Should never happen
2227 Logger::log('Received participation for ID: '.$item['id'].' - Contact: '.$contact_id.' - Server: '.$server, Logger::DEBUG);
2229 if (!DBA::exists('participation', ['iid' => $item['id'], 'server' => $server])) {
2230 DBA::insert('participation', ['iid' => $item['id'], 'cid' => $contact_id, 'fid' => $person['id'], 'server' => $server]);
2233 // Send all existing comments and likes to the requesting server
2234 $comments = Item::select(['id', 'parent', 'verb', 'self'], ['parent' => $item['id']]);
2235 while ($comment = Item::fetch($comments)) {
2236 if ($comment['id'] == $comment['parent']) {
2240 Logger::info('Deliver participation', ['item' => $comment['id'], 'contact' => $contact_id]);
2241 if (Worker::add(PRIORITY_HIGH, 'Delivery', Delivery::POST, $comment['id'], $contact_id)) {
2242 ItemDeliveryData::incrementQueueCount($comment['id'], 1);
2245 DBA::close($comments);
2251 * @brief Processes photos - unneeded
2253 * @param array $importer Array of the importer user
2254 * @param object $data The message object
2256 * @return bool always true
2258 private static function receivePhoto(array $importer, $data)
2260 // There doesn't seem to be a reason for this function,
2261 // since the photo data is transmitted in the status message as well
2266 * @brief Processes poll participations - unssupported
2268 * @param array $importer Array of the importer user
2269 * @param object $data The message object
2271 * @return bool always true
2273 private static function receivePollParticipation(array $importer, $data)
2275 // We don't support polls by now
2280 * @brief Processes incoming profile updates
2282 * @param array $importer Array of the importer user
2283 * @param object $data The message object
2285 * @return bool Success
2286 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2287 * @throws \ImagickException
2289 private static function receiveProfile(array $importer, $data)
2291 $author = strtolower(Strings::escapeTags(XML::unescape($data->author)));
2293 $contact = self::contactByHandle($importer["uid"], $author);
2298 $name = XML::unescape($data->first_name).((strlen($data->last_name)) ? " ".XML::unescape($data->last_name) : "");
2299 $image_url = XML::unescape($data->image_url);
2300 $birthday = XML::unescape($data->birthday);
2301 $gender = XML::unescape($data->gender);
2302 $about = Markdown::toBBCode(XML::unescape($data->bio));
2303 $location = Markdown::toBBCode(XML::unescape($data->location));
2304 $searchable = (XML::unescape($data->searchable) == "true");
2305 $nsfw = (XML::unescape($data->nsfw) == "true");
2306 $tags = XML::unescape($data->tag_string);
2308 $tags = explode("#", $tags);
2311 foreach ($tags as $tag) {
2312 $tag = trim(strtolower($tag));
2318 $keywords = implode(", ", $keywords);
2320 $handle_parts = explode("@", $author);
2321 $nick = $handle_parts[0];
2324 $name = $handle_parts[0];
2327 if (preg_match("|^https?://|", $image_url) === 0) {
2328 $image_url = "http://".$handle_parts[1].$image_url;
2331 Contact::updateAvatar($image_url, $importer["uid"], $contact["id"]);
2333 // Generic birthday. We don't know the timezone. The year is irrelevant.
2335 $birthday = str_replace("1000", "1901", $birthday);
2337 if ($birthday != "") {
2338 $birthday = DateTimeFormat::utc($birthday, "Y-m-d");
2341 // this is to prevent multiple birthday notifications in a single year
2342 // if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
2344 if (substr($birthday, 5) === substr($contact["bd"], 5)) {
2345 $birthday = $contact["bd"];
2348 $fields = ['name' => $name, 'location' => $location,
2349 'name-date' => DateTimeFormat::utcNow(),
2350 'about' => $about, 'gender' => $gender,
2351 'addr' => $author, 'nick' => $nick, 'keywords' => $keywords,
2352 'unsearchable' => !$searchable, 'sensitive' => $nsfw];
2354 if (!empty($birthday)) {
2355 $fields['bd'] = $birthday;
2358 DBA::update('contact', $fields, ['id' => $contact['id']]);
2360 // @todo Update the public contact, then update the gcontact from that
2362 $gcontact = ["url" => $contact["url"], "network" => Protocol::DIASPORA, "generation" => 2,
2363 "photo" => $image_url, "name" => $name, "location" => $location,
2364 "about" => $about, "birthday" => $birthday, "gender" => $gender,
2365 "addr" => $author, "nick" => $nick, "keywords" => $keywords,
2366 "hide" => !$searchable, "nsfw" => $nsfw];
2368 $gcid = GContact::update($gcontact);
2370 GContact::link($gcid, $importer["uid"], $contact["id"]);
2372 Logger::log("Profile of contact ".$contact["id"]." stored for user ".$importer["uid"], Logger::DEBUG);
2378 * @brief Processes incoming friend requests
2380 * @param array $importer Array of the importer user
2381 * @param array $contact The contact that send the request
2383 * @throws \Exception
2385 private static function receiveRequestMakeFriend(array $importer, array $contact)
2387 if ($contact["rel"] == Contact::SHARING) {
2390 ['rel' => Contact::FRIEND, 'writable' => true],
2391 ['id' => $contact["id"], 'uid' => $importer["uid"]]
2397 * @brief Processes incoming sharing notification
2399 * @param array $importer Array of the importer user
2400 * @param object $data The message object
2402 * @return bool Success
2403 * @throws \Exception
2405 private static function receiveContactRequest(array $importer, $data)
2407 $author = XML::unescape($data->author);
2408 $recipient = XML::unescape($data->recipient);
2410 if (!$author || !$recipient) {
2414 // the current protocol version doesn't know these fields
2415 // That means that we will assume their existance
2416 if (isset($data->following)) {
2417 $following = (XML::unescape($data->following) == "true");
2422 if (isset($data->sharing)) {
2423 $sharing = (XML::unescape($data->sharing) == "true");
2428 $contact = self::contactByHandle($importer["uid"], $author);
2430 // perhaps we were already sharing with this person. Now they're sharing with us.
2431 // That makes us friends.
2434 Logger::log("Author ".$author." (Contact ".$contact["id"].") wants to follow us.", Logger::DEBUG);
2435 self::receiveRequestMakeFriend($importer, $contact);
2437 // refetch the contact array
2438 $contact = self::contactByHandle($importer["uid"], $author);
2440 // If we are now friends, we are sending a share message.
2441 // Normally we needn't to do so, but the first message could have been vanished.
2442 if (in_array($contact["rel"], [Contact::FRIEND])) {
2443 $user = DBA::selectFirst('user', [], ['uid' => $importer["uid"]]);
2444 if (DBA::isResult($user)) {
2445 Logger::log("Sending share message to author ".$author." - Contact: ".$contact["id"]." - User: ".$importer["uid"], Logger::DEBUG);
2446 self::sendShare($user, $contact);
2451 Logger::log("Author ".$author." doesn't want to follow us anymore.", Logger::DEBUG);
2452 Contact::removeFollower($importer, $contact);
2457 if (!$following && $sharing && in_array($importer["page-flags"], [User::PAGE_FLAGS_SOAPBOX, User::PAGE_FLAGS_NORMAL])) {
2458 Logger::log("Author ".$author." wants to share with us - but doesn't want to listen. Request is ignored.", Logger::DEBUG);
2460 } elseif (!$following && !$sharing) {
2461 Logger::log("Author ".$author." doesn't want anything - and we don't know the author. Request is ignored.", Logger::DEBUG);
2463 } elseif (!$following && $sharing) {
2464 Logger::log("Author ".$author." wants to share with us.", Logger::DEBUG);
2465 } elseif ($following && $sharing) {
2466 Logger::log("Author ".$author." wants to have a bidirectional conection.", Logger::DEBUG);
2467 } elseif ($following && !$sharing) {
2468 Logger::log("Author ".$author." wants to listen to us.", Logger::DEBUG);
2471 $ret = self::personByHandle($author);
2473 if (!$ret || ($ret["network"] != Protocol::DIASPORA)) {
2474 Logger::log("Cannot resolve diaspora handle ".$author." for ".$recipient);
2478 $batch = (($ret["batch"]) ? $ret["batch"] : implode("/", array_slice(explode("/", $ret["url"]), 0, 3))."/receive/public");
2481 "INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`nurl`,`batch`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
2482 VALUES (%d, '%s', '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s','%s',%d,%d)",
2483 intval($importer["uid"]),
2484 DBA::escape($ret["network"]),
2485 DBA::escape($ret["addr"]),
2486 DateTimeFormat::utcNow(),
2487 DBA::escape($ret["url"]),
2488 DBA::escape(Strings::normaliseLink($ret["url"])),
2489 DBA::escape($batch),
2490 DBA::escape($ret["name"]),
2491 DBA::escape($ret["nick"]),
2492 DBA::escape($ret["photo"]),
2493 DBA::escape($ret["pubkey"]),
2494 DBA::escape($ret["notify"]),
2495 DBA::escape($ret["poll"]),
2500 // find the contact record we just created
2502 $contact_record = self::contactByHandle($importer["uid"], $author);
2504 if (!$contact_record) {
2505 Logger::log("unable to locate newly created contact record.");
2509 Logger::log("Author ".$author." was added as contact number ".$contact_record["id"].".", Logger::DEBUG);
2511 Group::addMember(User::getDefaultGroup($importer['uid'], $ret["network"]), $contact_record['id']);
2513 Contact::updateAvatar($ret["photo"], $importer['uid'], $contact_record["id"], true);
2515 if (in_array($importer["page-flags"], [User::PAGE_FLAGS_NORMAL, User::PAGE_FLAGS_PRVGROUP])) {
2516 Logger::log("Sending intra message for author ".$author.".", Logger::DEBUG);
2518 $hash = Strings::getRandomHex().(string)time(); // Generate a confirm_key
2521 "INSERT INTO `intro` (`uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime`)
2522 VALUES (%d, %d, %d, %d, '%s', '%s', '%s')",
2523 intval($importer["uid"]),
2524 intval($contact_record["id"]),
2527 DBA::escape(L10n::t("Sharing notification from Diaspora network")),
2529 DBA::escape(DateTimeFormat::utcNow())
2532 // automatic friend approval
2534 Logger::log("Does an automatic friend approval for author ".$author.".", Logger::DEBUG);
2536 Contact::updateAvatar($contact_record["photo"], $importer["uid"], $contact_record["id"]);
2539 * technically they are sharing with us (Contact::SHARING),
2540 * but if our page-type is Profile::PAGE_COMMUNITY or Profile::PAGE_SOAPBOX
2541 * we are going to change the relationship and make them a follower.
2543 if (($importer["page-flags"] == User::PAGE_FLAGS_FREELOVE) && $sharing && $following) {
2544 $new_relation = Contact::FRIEND;
2545 } elseif (($importer["page-flags"] == User::PAGE_FLAGS_FREELOVE) && $sharing) {
2546 $new_relation = Contact::SHARING;
2548 $new_relation = Contact::FOLLOWER;
2552 "UPDATE `contact` SET `rel` = %d,
2560 intval($new_relation),
2561 DBA::escape(DateTimeFormat::utcNow()),
2562 DBA::escape(DateTimeFormat::utcNow()),
2563 intval($contact_record["id"])
2566 $user = DBA::selectFirst('user', [], ['uid' => $importer["uid"]]);
2567 if (DBA::isResult($user)) {
2568 Logger::log("Sending share message (Relation: ".$new_relation.") to author ".$author." - Contact: ".$contact_record["id"]." - User: ".$importer["uid"], Logger::DEBUG);
2569 self::sendShare($user, $contact_record);
2571 // Send the profile data, maybe it weren't transmitted before
2572 self::sendProfile($importer["uid"], [$contact_record]);
2580 * @brief Fetches a message with a given guid
2582 * @param string $guid message guid
2583 * @param string $orig_author handle of the original post
2584 * @return array The fetched item
2585 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2586 * @throws \ImagickException
2588 public static function originalItem($guid, $orig_author)
2591 Logger::log('Empty guid. Quitting.');
2595 // Do we already have this item?
2596 $fields = ['body', 'tag', 'app', 'created', 'object-type', 'uri', 'guid',
2597 'author-name', 'author-link', 'author-avatar'];
2598 $condition = ['guid' => $guid, 'visible' => true, 'deleted' => false, 'private' => false];
2599 $item = Item::selectFirst($fields, $condition);
2601 if (DBA::isResult($item)) {
2602 Logger::log("reshared message ".$guid." already exists on system.");
2604 // Maybe it is already a reshared item?
2605 // Then refetch the content, if it is a reshare from a reshare.
2606 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2607 if (self::isReshare($item["body"], true)) {
2609 } elseif (self::isReshare($item["body"], false) || strstr($item["body"], "[share")) {
2610 $item["body"] = Markdown::toBBCode(BBCode::toMarkdown($item["body"]));
2612 $item["body"] = self::replacePeopleGuid($item["body"], $item["author-link"]);
2614 // Add OEmbed and other information to the body
2615 $item["body"] = add_page_info_to_body($item["body"], false, true);
2623 if (!DBA::isResult($item)) {
2624 if (empty($orig_author)) {
2625 Logger::log('Empty author for guid ' . $guid . '. Quitting.');
2629 $server = "https://".substr($orig_author, strpos($orig_author, "@") + 1);
2630 Logger::log("1st try: reshared message ".$guid." will be fetched via SSL from the server ".$server);
2631 $stored = self::storeByGuid($guid, $server);
2634 $server = "http://".substr($orig_author, strpos($orig_author, "@") + 1);
2635 Logger::log("2nd try: reshared message ".$guid." will be fetched without SSL from the server ".$server);
2636 $stored = self::storeByGuid($guid, $server);
2640 $fields = ['body', 'tag', 'app', 'created', 'object-type', 'uri', 'guid',
2641 'author-name', 'author-link', 'author-avatar'];
2642 $condition = ['guid' => $guid, 'visible' => true, 'deleted' => false, 'private' => false];
2643 $item = Item::selectFirst($fields, $condition);
2645 if (DBA::isResult($item)) {
2646 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2647 if (self::isReshare($item["body"], false)) {
2648 $item["body"] = Markdown::toBBCode(BBCode::toMarkdown($item["body"]));
2649 $item["body"] = self::replacePeopleGuid($item["body"], $item["author-link"]);
2660 * @brief Stores a reshare activity
2662 * @param array $item Array of reshare post
2663 * @param integer $parent_message_id Id of the parent post
2664 * @param string $guid GUID string of reshare action
2665 * @param string $author Author handle
2667 private static function addReshareActivity($item, $parent_message_id, $guid, $author)
2669 $parent = Item::selectFirst(['uri', 'guid'], ['id' => $parent_message_id]);
2673 $datarray['uid'] = $item['uid'];
2674 $datarray['contact-id'] = $item['contact-id'];
2675 $datarray['network'] = $item['network'];
2677 $datarray['author-link'] = $item['author-link'];
2678 $datarray['author-id'] = $item['author-id'];
2680 $datarray['owner-link'] = $datarray['author-link'];
2681 $datarray['owner-id'] = $datarray['author-id'];
2683 $datarray['guid'] = $parent['guid'] . '-' . $guid;
2684 $datarray['uri'] = self::getUriFromGuid($author, $datarray['guid']);
2685 $datarray['parent-uri'] = $parent['uri'];
2687 $datarray['verb'] = $datarray['body'] = ACTIVITY2_ANNOUNCE;
2688 $datarray['gravity'] = GRAVITY_ACTIVITY;
2689 $datarray['object-type'] = ACTIVITY_OBJ_NOTE;
2691 $datarray['protocol'] = $item['protocol'];
2693 $datarray['plink'] = self::plink($author, $datarray['guid']);
2694 $datarray['private'] = $item['private'];
2695 $datarray['changed'] = $datarray['created'] = $datarray['edited'] = $item['created'];
2697 $message_id = Item::insert($datarray);
2700 Logger::info('Stored reshare activity.', ['guid' => $guid, 'id' => $message_id]);
2701 if ($datarray['uid'] == 0) {
2702 Item::distribute($message_id);
2708 * @brief Processes a reshare message
2710 * @param array $importer Array of the importer user
2711 * @param object $data The message object
2712 * @param string $xml The original XML of the message
2714 * @return int the message id
2715 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2716 * @throws \ImagickException
2718 private static function receiveReshare(array $importer, $data, $xml)
2720 $author = Strings::escapeTags(XML::unescape($data->author));
2721 $guid = Strings::escapeTags(XML::unescape($data->guid));
2722 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
2723 $root_author = Strings::escapeTags(XML::unescape($data->root_author));
2724 $root_guid = Strings::escapeTags(XML::unescape($data->root_guid));
2725 /// @todo handle unprocessed property "provider_display_name"
2726 $public = Strings::escapeTags(XML::unescape($data->public));
2728 $contact = self::allowedContactByHandle($importer, $author, false);
2733 $message_id = self::messageExists($importer["uid"], $guid);
2738 $original_item = self::originalItem($root_guid, $root_author);
2739 if (!$original_item) {
2743 $orig_url = System::baseUrl()."/display/".$original_item["guid"];
2747 $datarray["uid"] = $importer["uid"];
2748 $datarray["contact-id"] = $contact["id"];
2749 $datarray["network"] = Protocol::DIASPORA;
2751 $datarray["author-link"] = $contact["url"];
2752 $datarray["author-id"] = Contact::getIdForURL($contact["url"], 0);
2754 $datarray["owner-link"] = $datarray["author-link"];
2755 $datarray["owner-id"] = $datarray["author-id"];
2757 $datarray["guid"] = $guid;
2758 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
2760 $datarray["verb"] = ACTIVITY_POST;
2761 $datarray["gravity"] = GRAVITY_PARENT;
2763 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
2764 $datarray["source"] = $xml;
2766 $prefix = share_header(
2767 $original_item["author-name"],
2768 $original_item["author-link"],
2769 $original_item["author-avatar"],
2770 $original_item["guid"],
2771 $original_item["created"],
2774 $datarray["body"] = $prefix.$original_item["body"]."[/share]";
2776 $datarray["tag"] = $original_item["tag"];
2777 $datarray["app"] = $original_item["app"];
2779 $datarray["plink"] = self::plink($author, $guid);
2780 $datarray["private"] = (($public == "false") ? 1 : 0);
2781 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
2783 $datarray["object-type"] = $original_item["object-type"];
2785 self::fetchGuid($datarray);
2786 $message_id = Item::insert($datarray);
2788 self::sendParticipation($contact, $datarray);
2790 $root_message_id = self::messageExists($importer["uid"], $root_guid);
2791 if ($root_message_id) {
2792 self::addReshareActivity($datarray, $root_message_id, $guid, $author);
2796 Logger::log("Stored reshare ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
2797 if ($datarray['uid'] == 0) {
2798 Item::distribute($message_id);
2807 * @brief Processes retractions
2809 * @param array $importer Array of the importer user
2810 * @param array $contact The contact of the item owner
2811 * @param object $data The message object
2813 * @return bool success
2814 * @throws \Exception
2816 private static function itemRetraction(array $importer, array $contact, $data)
2818 $author = Strings::escapeTags(XML::unescape($data->author));
2819 $target_guid = Strings::escapeTags(XML::unescape($data->target_guid));
2820 $target_type = Strings::escapeTags(XML::unescape($data->target_type));
2822 $person = self::personByHandle($author);
2823 if (!is_array($person)) {
2824 Logger::log("unable to find author detail for ".$author);
2828 if (empty($contact["url"])) {
2829 $contact["url"] = $person["url"];
2832 // Fetch items that are about to be deleted
2833 $fields = ['uid', 'id', 'parent', 'parent-uri', 'author-link', 'file'];
2835 // When we receive a public retraction, we delete every item that we find.
2836 if ($importer['uid'] == 0) {
2837 $condition = ['guid' => $target_guid, 'deleted' => false];
2839 $condition = ['guid' => $target_guid, 'deleted' => false, 'uid' => $importer['uid']];
2842 $r = Item::select($fields, $condition);
2843 if (!DBA::isResult($r)) {
2844 Logger::log("Target guid ".$target_guid." was not found on this system for user ".$importer['uid'].".");
2848 while ($item = Item::fetch($r)) {
2849 if (strstr($item['file'], '[')) {
2850 Logger::log("Target guid " . $target_guid . " for user " . $item['uid'] . " is filed. So it won't be deleted.", Logger::DEBUG);
2854 // Fetch the parent item
2855 $parent = Item::selectFirst(['author-link'], ['id' => $item["parent"]]);
2857 // Only delete it if the parent author really fits
2858 if (!Strings::compareLink($parent["author-link"], $contact["url"]) && !Strings::compareLink($item["author-link"], $contact["url"])) {
2859 Logger::log("Thread author ".$parent["author-link"]." and item author ".$item["author-link"]." don't fit to expected contact ".$contact["url"], Logger::DEBUG);
2863 Item::delete(['id' => $item['id']]);
2865 Logger::log("Deleted target ".$target_guid." (".$item["id"].") from user ".$item["uid"]." parent: ".$item["parent"], Logger::DEBUG);
2872 * @brief Receives retraction messages
2874 * @param array $importer Array of the importer user
2875 * @param string $sender The sender of the message
2876 * @param object $data The message object
2878 * @return bool Success
2879 * @throws \Exception
2881 private static function receiveRetraction(array $importer, $sender, $data)
2883 $target_type = Strings::escapeTags(XML::unescape($data->target_type));
2885 $contact = self::contactByHandle($importer["uid"], $sender);
2886 if (!$contact && (in_array($target_type, ["Contact", "Person"]))) {
2887 Logger::log("cannot find contact for sender: ".$sender." and user ".$importer["uid"]);
2895 Logger::log("Got retraction for ".$target_type.", sender ".$sender." and user ".$importer["uid"], Logger::DEBUG);
2897 switch ($target_type) {
2902 case "StatusMessage":
2903 return self::itemRetraction($importer, $contact, $data);
2905 case "PollParticipation":
2907 // Currently unsupported
2911 Logger::log("Unknown target type ".$target_type);
2918 * @brief Receives status messages
2920 * @param array $importer Array of the importer user
2921 * @param SimpleXMLElement $data The message object
2922 * @param string $xml The original XML of the message
2924 * @return int The message id of the newly created item
2925 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2926 * @throws \ImagickException
2928 private static function receiveStatusMessage(array $importer, SimpleXMLElement $data, $xml)
2930 $author = Strings::escapeTags(XML::unescape($data->author));
2931 $guid = Strings::escapeTags(XML::unescape($data->guid));
2932 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
2933 $public = Strings::escapeTags(XML::unescape($data->public));
2934 $text = XML::unescape($data->text);
2935 $provider_display_name = Strings::escapeTags(XML::unescape($data->provider_display_name));
2937 $contact = self::allowedContactByHandle($importer, $author, false);
2942 $message_id = self::messageExists($importer["uid"], $guid);
2948 if ($data->location) {
2949 foreach ($data->location->children() as $fieldname => $data) {
2950 $address[$fieldname] = Strings::escapeTags(XML::unescape($data));
2954 $body = Markdown::toBBCode($text);
2958 // Attach embedded pictures to the body
2960 foreach ($data->photo as $photo) {
2961 $body = "[img]".XML::unescape($photo->remote_photo_path).
2962 XML::unescape($photo->remote_photo_name)."[/img]\n".$body;
2965 $datarray["object-type"] = ACTIVITY_OBJ_IMAGE;
2967 $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
2969 // Add OEmbed and other information to the body
2970 if (!self::isRedmatrix($contact["url"])) {
2971 $body = add_page_info_to_body($body, false, true);
2975 /// @todo enable support for polls
2976 //if ($data->poll) {
2977 // foreach ($data->poll AS $poll)
2982 /// @todo enable support for events
2984 $datarray["uid"] = $importer["uid"];
2985 $datarray["contact-id"] = $contact["id"];
2986 $datarray["network"] = Protocol::DIASPORA;
2988 $datarray["author-link"] = $contact["url"];
2989 $datarray["author-id"] = Contact::getIdForURL($contact["url"], 0);
2991 $datarray["owner-link"] = $datarray["author-link"];
2992 $datarray["owner-id"] = $datarray["author-id"];
2994 $datarray["guid"] = $guid;
2995 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
2997 $datarray["verb"] = ACTIVITY_POST;
2998 $datarray["gravity"] = GRAVITY_PARENT;
3000 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
3001 $datarray["source"] = $xml;
3003 $datarray["body"] = self::replacePeopleGuid($body, $contact["url"]);
3005 if ($provider_display_name != "") {
3006 $datarray["app"] = $provider_display_name;
3009 $datarray["plink"] = self::plink($author, $guid);
3010 $datarray["private"] = (($public == "false") ? 1 : 0);
3011 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
3013 if (isset($address["address"])) {
3014 $datarray["location"] = $address["address"];
3017 if (isset($address["lat"]) && isset($address["lng"])) {
3018 $datarray["coord"] = $address["lat"]." ".$address["lng"];
3021 self::fetchGuid($datarray);
3022 $message_id = Item::insert($datarray);
3024 self::sendParticipation($contact, $datarray);
3027 Logger::log("Stored item ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
3028 if ($datarray['uid'] == 0) {
3029 Item::distribute($message_id);
3037 /* ************************************************************************************** *
3038 * Here are all the functions that are needed to transmit data with the Diaspora protocol *
3039 * ************************************************************************************** */
3042 * @brief returnes the handle of a contact
3044 * @param array $contact contact array
3046 * @return string the handle in the format user@domain.tld
3047 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3049 private static function myHandle(array $contact)
3051 if (!empty($contact["addr"])) {
3052 return $contact["addr"];
3055 // Normally we should have a filled "addr" field - but in the past this wasn't the case
3056 // So - just in case - we build the the address here.
3057 if ($contact["nickname"] != "") {
3058 $nick = $contact["nickname"];
3060 $nick = $contact["nick"];
3063 return $nick . "@" . substr(System::baseUrl(), strpos(System::baseUrl(), "://") + 3);
3068 * @brief Creates the data for a private message in the new format
3070 * @param string $msg The message that is to be transmitted
3071 * @param array $user The record of the sender
3072 * @param array $contact Target of the communication
3073 * @param string $prvkey The private key of the sender
3074 * @param string $pubkey The public key of the receiver
3076 * @return string The encrypted data
3077 * @throws \Exception
3079 public static function encodePrivateData($msg, array $user, array $contact, $prvkey, $pubkey)
3081 Logger::log("Message: ".$msg, Logger::DATA);
3083 // without a public key nothing will work
3085 Logger::log("pubkey missing: contact id: ".$contact["id"]);
3089 $aes_key = openssl_random_pseudo_bytes(32);
3090 $b_aes_key = base64_encode($aes_key);
3091 $iv = openssl_random_pseudo_bytes(16);
3092 $b_iv = base64_encode($iv);
3094 $ciphertext = self::aesEncrypt($aes_key, $iv, $msg);
3096 $json = json_encode(["iv" => $b_iv, "key" => $b_aes_key]);
3098 $encrypted_key_bundle = "";
3099 openssl_public_encrypt($json, $encrypted_key_bundle, $pubkey);
3101 $json_object = json_encode(
3102 ["aes_key" => base64_encode($encrypted_key_bundle),
3103 "encrypted_magic_envelope" => base64_encode($ciphertext)]
3106 return $json_object;
3110 * @brief Creates the envelope for the "fetch" endpoint and for the new format
3112 * @param string $msg The message that is to be transmitted
3113 * @param array $user The record of the sender
3115 * @return string The envelope
3116 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3118 public static function buildMagicEnvelope($msg, array $user)
3120 $b64url_data = Strings::base64UrlEncode($msg);
3121 $data = str_replace(["\n", "\r", " ", "\t"], ["", "", "", ""], $b64url_data);
3123 $key_id = Strings::base64UrlEncode(self::myHandle($user));
3124 $type = "application/xml";
3125 $encoding = "base64url";
3126 $alg = "RSA-SHA256";
3127 $signable_data = $data.".".Strings::base64UrlEncode($type).".".Strings::base64UrlEncode($encoding).".".Strings::base64UrlEncode($alg);
3129 // Fallback if the private key wasn't transmitted in the expected field
3130 if ($user['uprvkey'] == "") {
3131 $user['uprvkey'] = $user['prvkey'];
3134 $signature = Crypto::rsaSign($signable_data, $user["uprvkey"]);
3135 $sig = Strings::base64UrlEncode($signature);
3137 $xmldata = ["me:env" => ["me:data" => $data,
3138 "@attributes" => ["type" => $type],
3139 "me:encoding" => $encoding,
3142 "@attributes2" => ["key_id" => $key_id]]];
3144 $namespaces = ["me" => "http://salmon-protocol.org/ns/magic-env"];
3146 return XML::fromArray($xmldata, $xml, false, $namespaces);
3150 * @brief Create the envelope for a message
3152 * @param string $msg The message that is to be transmitted
3153 * @param array $user The record of the sender
3154 * @param array $contact Target of the communication
3155 * @param string $prvkey The private key of the sender
3156 * @param string $pubkey The public key of the receiver
3157 * @param bool $public Is the message public?
3159 * @return string The message that will be transmitted to other servers
3160 * @throws \Exception
3162 public static function buildMessage($msg, array $user, array $contact, $prvkey, $pubkey, $public = false)
3164 // The message is put into an envelope with the sender's signature
3165 $envelope = self::buildMagicEnvelope($msg, $user);
3167 // Private messages are put into a second envelope, encrypted with the receivers public key
3169 $envelope = self::encodePrivateData($envelope, $user, $contact, $prvkey, $pubkey);
3176 * @brief Creates a signature for a message
3178 * @param array $owner the array of the owner of the message
3179 * @param array $message The message that is to be signed
3181 * @return string The signature
3183 private static function signature($owner, $message)
3186 unset($sigmsg["author_signature"]);
3187 unset($sigmsg["parent_author_signature"]);
3189 $signed_text = implode(";", $sigmsg);
3191 return base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3195 * @brief Transmit a message to a target server
3197 * @param array $owner the array of the item owner
3198 * @param array $contact Target of the communication
3199 * @param string $envelope The message that is to be transmitted
3200 * @param bool $public_batch Is it a public post?
3201 * @param string $guid message guid
3203 * @return int Result of the transmission
3204 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3205 * @throws \ImagickException
3207 private static function transmit(array $owner, array $contact, $envelope, $public_batch, $guid = "")
3209 $enabled = intval(Config::get("system", "diaspora_enabled"));
3214 $logid = Strings::getRandomHex(4);
3216 // We always try to use the data from the fcontact table.
3217 // This is important for transmitting data to Friendica servers.
3218 if (!empty($contact['addr'])) {
3219 $fcontact = self::personByHandle($contact['addr']);
3220 if (!empty($fcontact)) {
3221 $dest_url = ($public_batch ? $fcontact["batch"] : $fcontact["notify"]);
3225 if (empty($dest_url)) {
3226 $dest_url = ($public_batch ? $contact["batch"] : $contact["notify"]);
3230 Logger::log("no url for contact: ".$contact["id"]." batch mode =".$public_batch);
3234 Logger::log("transmit: ".$logid."-".$guid." ".$dest_url);
3236 if (!intval(Config::get("system", "diaspora_test"))) {
3237 $content_type = (($public_batch) ? "application/magic-envelope+xml" : "application/json");
3239 $postResult = Network::post($dest_url."/", $envelope, ["Content-Type: ".$content_type]);
3240 $return_code = $postResult->getReturnCode();
3242 Logger::log("test_mode");
3246 Logger::log("transmit: ".$logid."-".$guid." to ".$dest_url." returns: ".$return_code);
3248 return $return_code ? $return_code : -1;
3253 * @brief Build the post xml
3255 * @param string $type The message type
3256 * @param array $message The message data
3258 * @return string The post XML
3260 public static function buildPostXml($type, $message)
3262 $data = [$type => $message];
3264 return XML::fromArray($data, $xml);
3268 * @brief Builds and transmit messages
3270 * @param array $owner the array of the item owner
3271 * @param array $contact Target of the communication
3272 * @param string $type The message type
3273 * @param array $message The message data
3274 * @param bool $public_batch Is it a public post?
3275 * @param string $guid message guid
3277 * @return int Result of the transmission
3278 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3279 * @throws \ImagickException
3281 private static function buildAndTransmit(array $owner, array $contact, $type, $message, $public_batch = false, $guid = "")
3283 $msg = self::buildPostXml($type, $message);
3285 Logger::log('message: '.$msg, Logger::DATA);
3286 Logger::log('send guid '.$guid, Logger::DEBUG);
3288 // Fallback if the private key wasn't transmitted in the expected field
3289 if (empty($owner['uprvkey'])) {
3290 $owner['uprvkey'] = $owner['prvkey'];
3293 $envelope = self::buildMessage($msg, $owner, $contact, $owner['uprvkey'], $contact['pubkey'], $public_batch);
3295 $return_code = self::transmit($owner, $contact, $envelope, $public_batch, $guid);
3297 Logger::log("guid: ".$guid." result ".$return_code, Logger::DEBUG);
3299 return $return_code;
3303 * @brief sends a participation (Used to get all further updates)
3305 * @param array $contact Target of the communication
3306 * @param array $item Item array
3308 * @return int The result of the transmission
3309 * @throws \Exception
3311 private static function sendParticipation(array $contact, array $item)
3313 // Don't send notifications for private postings
3314 if ($item['private']) {
3318 $cachekey = "diaspora:sendParticipation:".$item['guid'];
3320 $result = Cache::get($cachekey);
3321 if (!is_null($result)) {
3325 // Fetch some user id to have a valid handle to transmit the participation.
3326 // In fact it doesn't matter which user sends this - but it is needed by the protocol.
3327 // If the item belongs to a user, we take this user id.
3328 if ($item['uid'] == 0) {
3329 $condition = ['verified' => true, 'blocked' => false, 'account_removed' => false, 'account_expired' => false];
3330 $first_user = DBA::selectFirst('user', ['uid'], $condition);
3331 $owner = User::getOwnerDataById($first_user['uid']);
3333 $owner = User::getOwnerDataById($item['uid']);
3336 $author = self::myHandle($owner);
3338 $message = ["author" => $author,
3339 "guid" => System::createUUID(),
3340 "parent_type" => "Post",
3341 "parent_guid" => $item["guid"]];
3343 Logger::log("Send participation for ".$item["guid"]." by ".$author, Logger::DEBUG);
3345 // It doesn't matter what we store, we only want to avoid sending repeated notifications for the same item
3346 Cache::set($cachekey, $item["guid"], Cache::QUARTER_HOUR);
3348 return self::buildAndTransmit($owner, $contact, "participation", $message);
3352 * @brief sends an account migration
3354 * @param array $owner the array of the item owner
3355 * @param array $contact Target of the communication
3356 * @param int $uid User ID
3358 * @return int The result of the transmission
3359 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3360 * @throws \ImagickException
3362 public static function sendAccountMigration(array $owner, array $contact, $uid)
3364 $old_handle = PConfig::get($uid, 'system', 'previous_addr');
3365 $profile = self::createProfileData($uid);
3367 $signed_text = 'AccountMigration:'.$old_handle.':'.$profile['author'];
3368 $signature = base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3370 $message = ["author" => $old_handle,
3371 "profile" => $profile,
3372 "signature" => $signature];
3374 Logger::log("Send account migration ".print_r($message, true), Logger::DEBUG);
3376 return self::buildAndTransmit($owner, $contact, "account_migration", $message);
3380 * @brief Sends a "share" message
3382 * @param array $owner the array of the item owner
3383 * @param array $contact Target of the communication
3385 * @return int The result of the transmission
3386 * @throws \Exception
3388 public static function sendShare(array $owner, array $contact)
3391 * @todo support the different possible combinations of "following" and "sharing"
3392 * Currently, Diaspora only interprets the "sharing" field
3394 * Before switching this code productive, we have to check all "sendShare" calls if "rel" is set correctly
3398 switch ($contact["rel"]) {
3399 case Contact::FRIEND:
3403 case Contact::SHARING:
3407 case Contact::FOLLOWER:
3413 $message = ["author" => self::myHandle($owner),
3414 "recipient" => $contact["addr"],
3415 "following" => "true",
3416 "sharing" => "true"];
3418 Logger::log("Send share ".print_r($message, true), Logger::DEBUG);
3420 return self::buildAndTransmit($owner, $contact, "contact", $message);
3424 * @brief sends an "unshare"
3426 * @param array $owner the array of the item owner
3427 * @param array $contact Target of the communication
3429 * @return int The result of the transmission
3430 * @throws \Exception
3432 public static function sendUnshare(array $owner, array $contact)
3434 $message = ["author" => self::myHandle($owner),
3435 "recipient" => $contact["addr"],
3436 "following" => "false",
3437 "sharing" => "false"];
3439 Logger::log("Send unshare ".print_r($message, true), Logger::DEBUG);
3441 return self::buildAndTransmit($owner, $contact, "contact", $message);
3445 * @brief Checks a message body if it is a reshare
3447 * @param string $body The message body that is to be check
3448 * @param bool $complete Should it be a complete check or a simple check?
3450 * @return array|bool Reshare details or "false" if no reshare
3451 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3452 * @throws \ImagickException
3454 public static function isReshare($body, $complete = true)
3456 $body = trim($body);
3458 // Skip if it isn't a pure repeated messages
3459 // Does it start with a share?
3460 if ((strpos($body, "[share") > 0) && $complete) {
3464 // Does it end with a share?
3465 if (strlen($body) > (strrpos($body, "[/share]") + 8)) {
3469 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", "$1", $body);
3470 // Skip if there is no shared message in there
3471 if ($body == $attributes) {
3475 // If we don't do the complete check we quit here
3478 preg_match("/guid='(.*?)'/ism", $attributes, $matches);
3479 if (!empty($matches[1])) {
3480 $guid = $matches[1];
3483 preg_match('/guid="(.*?)"/ism', $attributes, $matches);
3484 if (!empty($matches[1])) {
3485 $guid = $matches[1];
3488 if (($guid != "") && $complete) {
3489 $condition = ['guid' => $guid, 'network' => [Protocol::DFRN, Protocol::DIASPORA]];
3490 $item = Item::selectFirst(['contact-id'], $condition);
3491 if (DBA::isResult($item)) {
3493 $ret["root_handle"] = self::handleFromContact($item["contact-id"]);
3494 $ret["root_guid"] = $guid;
3496 } elseif ($complete) {
3497 // We are resharing something that isn't a DFRN or Diaspora post.
3498 // So we have to return "false" on "$complete" to not trigger a reshare.
3501 } elseif (($guid == "") && $complete) {
3505 $ret["root_guid"] = $guid;
3508 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
3509 if (!empty($matches[1])) {
3510 $profile = $matches[1];
3513 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
3514 if (!empty($matches[1])) {
3515 $profile = $matches[1];
3520 if ($profile != "") {
3521 if (Contact::getIdForURL($profile)) {
3522 $author = Contact::getDetailsByURL($profile);
3523 $ret["root_handle"] = $author['addr'];
3527 if (empty($ret) && !$complete) {
3535 * @brief Create an event array
3537 * @param integer $event_id The id of the event
3539 * @return array with event data
3540 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3542 private static function buildEvent($event_id)
3544 $r = q("SELECT `guid`, `uid`, `start`, `finish`, `nofinish`, `summary`, `desc`, `location`, `adjust` FROM `event` WHERE `id` = %d", intval($event_id));
3545 if (!DBA::isResult($r)) {
3553 $r = q("SELECT `timezone` FROM `user` WHERE `uid` = %d", intval($event['uid']));
3554 if (!DBA::isResult($r)) {
3560 $r = q("SELECT `addr`, `nick` FROM `contact` WHERE `uid` = %d AND `self`", intval($event['uid']));
3561 if (!DBA::isResult($r)) {
3567 $eventdata['author'] = self::myHandle($owner);
3569 if ($event['guid']) {
3570 $eventdata['guid'] = $event['guid'];
3573 $mask = DateTimeFormat::ATOM;
3575 /// @todo - establish "all day" events in Friendica
3576 $eventdata["all_day"] = "false";
3578 $eventdata['timezone'] = 'UTC';
3579 if (!$event['adjust'] && $user['timezone']) {
3580 $eventdata['timezone'] = $user['timezone'];
3583 if ($event['start']) {
3584 $eventdata['start'] = DateTimeFormat::convert($event['start'], "UTC", $eventdata['timezone'], $mask);
3586 if ($event['finish'] && !$event['nofinish']) {
3587 $eventdata['end'] = DateTimeFormat::convert($event['finish'], "UTC", $eventdata['timezone'], $mask);
3589 if ($event['summary']) {
3590 $eventdata['summary'] = html_entity_decode(BBCode::toMarkdown($event['summary']));
3592 if ($event['desc']) {
3593 $eventdata['description'] = html_entity_decode(BBCode::toMarkdown($event['desc']));
3595 if ($event['location']) {
3596 $event['location'] = preg_replace("/\[map\](.*?)\[\/map\]/ism", '$1', $event['location']);
3597 $coord = Map::getCoordinates($event['location']);
3600 $location["address"] = html_entity_decode(BBCode::toMarkdown($event['location']));
3601 if (!empty($coord['lat']) && !empty($coord['lon'])) {
3602 $location["lat"] = $coord['lat'];
3603 $location["lng"] = $coord['lon'];
3605 $location["lat"] = 0;
3606 $location["lng"] = 0;
3608 $eventdata['location'] = $location;
3615 * @brief Create a post (status message or reshare)
3617 * @param array $item The item that will be exported
3618 * @param array $owner the array of the item owner
3621 * 'type' -> Message type ("status_message" or "reshare")
3622 * 'message' -> Array of XML elements of the status
3623 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3624 * @throws \ImagickException
3626 public static function buildStatus(array $item, array $owner)
3628 $cachekey = "diaspora:buildStatus:".$item['guid'];
3630 $result = Cache::get($cachekey);
3631 if (!is_null($result)) {
3635 $myaddr = self::myHandle($owner);
3637 $public = ($item["private"] ? "false" : "true");
3639 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
3640 $edited = DateTimeFormat::utc($item["edited"] ?? $item["created"], DateTimeFormat::ATOM);
3642 // Detect a share element and do a reshare
3643 if (!$item['private'] && ($ret = self::isReshare($item["body"]))) {
3644 $message = ["author" => $myaddr,
3645 "guid" => $item["guid"],
3646 "created_at" => $created,
3647 "root_author" => $ret["root_handle"],
3648 "root_guid" => $ret["root_guid"],
3649 "provider_display_name" => $item["app"],
3650 "public" => $public];
3654 $title = $item["title"];
3655 $body = $item["body"];
3657 if ($item['author-link'] != $item['owner-link']) {
3658 require_once 'mod/share.php';
3659 $body = share_header($item['author-name'], $item['author-link'], $item['author-avatar'],
3660 "", $item['created'], $item['plink']) . $body . '[/share]';
3663 // convert to markdown
3664 $body = html_entity_decode(BBCode::toMarkdown($body));
3667 if (strlen($title)) {
3668 $body = "## ".html_entity_decode($title)."\n\n".$body;
3671 if ($item["attach"]) {
3672 $cnt = preg_match_all('/href=\"(.*?)\"(.*?)title=\"(.*?)\"/ism', $item["attach"], $matches, PREG_SET_ORDER);
3674 $body .= "\n".L10n::t("Attachments:")."\n";
3675 foreach ($matches as $mtch) {
3676 $body .= "[".$mtch[3]."](".$mtch[1].")\n";
3683 if ($item["location"] != "")
3684 $location["address"] = $item["location"];
3686 if ($item["coord"] != "") {
3687 $coord = explode(" ", $item["coord"]);
3688 $location["lat"] = $coord[0];
3689 $location["lng"] = $coord[1];
3692 $message = ["author" => $myaddr,
3693 "guid" => $item["guid"],
3694 "created_at" => $created,
3695 "edited_at" => $edited,
3696 "public" => $public,
3698 "provider_display_name" => $item["app"],
3699 "location" => $location];
3701 // Diaspora rejects messages when they contain a location without "lat" or "lng"
3702 if (!isset($location["lat"]) || !isset($location["lng"])) {
3703 unset($message["location"]);
3706 if ($item['event-id'] > 0) {
3707 $event = self::buildEvent($item['event-id']);
3708 if (count($event)) {
3709 $message['event'] = $event;
3711 if (!empty($event['location']['address']) &&
3712 !empty($event['location']['lat']) &&
3713 !empty($event['location']['lng'])) {
3714 $message['location'] = $event['location'];
3717 /// @todo Once Diaspora supports it, we will remove the body and the location hack above
3718 // $message['text'] = '';
3722 $type = "status_message";
3725 $msg = ["type" => $type, "message" => $message];
3727 Cache::set($cachekey, $msg, Cache::QUARTER_HOUR);
3732 private static function prependParentAuthorMention($body, $profile_url)
3734 $profile = Contact::getDetailsByURL($profile_url);
3735 if (!empty($profile['addr'])
3736 && $profile['contact-type'] != Contact::TYPE_COMMUNITY
3737 && !strstr($body, $profile['addr'])
3738 && !strstr($body, $profile_url)
3740 $body = '@[url=' . $profile_url . ']' . $profile['name'] . '[/url] ' . $body;
3747 * @brief Sends a post
3749 * @param array $item The item that will be exported
3750 * @param array $owner the array of the item owner
3751 * @param array $contact Target of the communication
3752 * @param bool $public_batch Is it a public post?
3754 * @return int The result of the transmission
3755 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3756 * @throws \ImagickException
3758 public static function sendStatus(array $item, array $owner, array $contact, $public_batch = false)
3760 $status = self::buildStatus($item, $owner);
3762 return self::buildAndTransmit($owner, $contact, $status["type"], $status["message"], $public_batch, $item["guid"]);
3766 * @brief Creates a "like" object
3768 * @param array $item The item that will be exported
3769 * @param array $owner the array of the item owner
3771 * @return array The data for a "like"
3772 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3774 private static function constructLike(array $item, array $owner)
3776 $parent = Item::selectFirst(['guid', 'uri', 'parent-uri'], ['uri' => $item["thr-parent"]]);
3777 if (!DBA::isResult($parent)) {
3781 $target_type = ($parent["uri"] === $parent["parent-uri"] ? "Post" : "Comment");
3783 if ($item['verb'] === ACTIVITY_LIKE) {
3785 } elseif ($item['verb'] === ACTIVITY_DISLIKE) {
3786 $positive = "false";
3789 return(["author" => self::myHandle($owner),
3790 "guid" => $item["guid"],
3791 "parent_guid" => $parent["guid"],
3792 "parent_type" => $target_type,
3793 "positive" => $positive,
3794 "author_signature" => ""]);
3798 * @brief Creates an "EventParticipation" object
3800 * @param array $item The item that will be exported
3801 * @param array $owner the array of the item owner
3803 * @return array The data for an "EventParticipation"
3804 * @throws \Exception
3806 private static function constructAttend(array $item, array $owner)
3808 $parent = Item::selectFirst(['guid', 'uri', 'parent-uri'], ['uri' => $item["thr-parent"]]);
3809 if (!DBA::isResult($parent)) {
3813 switch ($item['verb']) {
3814 case ACTIVITY_ATTEND:
3815 $attend_answer = 'accepted';
3817 case ACTIVITY_ATTENDNO:
3818 $attend_answer = 'declined';
3820 case ACTIVITY_ATTENDMAYBE:
3821 $attend_answer = 'tentative';
3824 Logger::log('Unknown verb '.$item['verb'].' in item '.$item['guid']);
3828 return(["author" => self::myHandle($owner),
3829 "guid" => $item["guid"],
3830 "parent_guid" => $parent["guid"],
3831 "status" => $attend_answer,
3832 "author_signature" => ""]);
3836 * @brief Creates the object for a comment
3838 * @param array $item The item that will be exported
3839 * @param array $owner the array of the item owner
3841 * @return array|false The data for a comment
3842 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3844 private static function constructComment(array $item, array $owner)
3846 $cachekey = "diaspora:constructComment:".$item['guid'];
3848 $result = Cache::get($cachekey);
3849 if (!is_null($result)) {
3853 $toplevel_item = Item::selectFirst(['guid', 'author-id', 'author-link'], ['id' => $item["parent"], 'parent' => $item["parent"]]);
3854 if (!DBA::isResult($toplevel_item)) {
3855 Logger::error('Missing parent conversation item', ['parent' => $item["parent"]]);
3859 $thread_parent_item = $toplevel_item;
3860 if ($item['thr-parent'] != $item['parent-uri']) {
3861 $thread_parent_item = Item::selectFirst(['guid', 'author-id', 'author-link'], ['uri' => $item['thr-parent'], 'uid' => $item['uid']]);
3864 $body = $item["body"];
3866 // The replied to autor mention is prepended for clarity if:
3867 // - Item replied isn't yours
3868 // - Item is public or explicit mentions are disabled
3869 // - Implicit mentions are enabled
3871 $item['author-id'] != $thread_parent_item['author-id']
3872 && (empty($item['uid']) || !Feature::isEnabled($item['uid'], 'explicit_mentions'))
3873 && !Config::get('system', 'disable_implicit_mentions')
3875 $body = self::prependParentAuthorMention($body, $thread_parent_item['author-link']);
3878 $text = html_entity_decode(BBCode::toMarkdown($body));
3879 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
3880 $edited = DateTimeFormat::utc($item["edited"], DateTimeFormat::ATOM);
3883 "author" => self::myHandle($owner),
3884 "guid" => $item["guid"],
3885 "created_at" => $created,
3886 "edited_at" => $edited,
3887 "parent_guid" => $toplevel_item["guid"],
3889 "author_signature" => ""
3892 // Send the thread parent guid only if it is a threaded comment
3893 if ($item['thr-parent'] != $item['parent-uri']) {
3894 $comment['thread_parent_guid'] = $thread_parent_item['guid'];
3897 Cache::set($cachekey, $comment, Cache::QUARTER_HOUR);
3903 * @brief Send a like or a comment
3905 * @param array $item The item that will be exported
3906 * @param array $owner the array of the item owner
3907 * @param array $contact Target of the communication
3908 * @param bool $public_batch Is it a public post?
3910 * @return int The result of the transmission
3911 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3912 * @throws \ImagickException
3914 public static function sendFollowup(array $item, array $owner, array $contact, $public_batch = false)
3916 if (in_array($item['verb'], [ACTIVITY_ATTEND, ACTIVITY_ATTENDNO, ACTIVITY_ATTENDMAYBE])) {
3917 $message = self::constructAttend($item, $owner);
3918 $type = "event_participation";
3919 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3920 $message = self::constructLike($item, $owner);
3922 } elseif (!in_array($item["verb"], [ACTIVITY_FOLLOW, ACTIVITY_TAG])) {
3923 $message = self::constructComment($item, $owner);
3927 if (empty($message)) {
3931 $message["author_signature"] = self::signature($owner, $message);
3933 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
3937 * @brief Creates a message from a signature record entry
3939 * @param array $item The item that will be exported
3940 * @return array The message
3942 private static function messageFromSignature(array $item)
3944 // Split the signed text
3945 $signed_parts = explode(";", $item['signed_text']);
3947 if ($item["deleted"]) {
3948 $message = ["author" => $item['signer'],
3949 "target_guid" => $signed_parts[0],
3950 "target_type" => $signed_parts[1]];
3951 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3952 $message = ["author" => $signed_parts[4],
3953 "guid" => $signed_parts[1],
3954 "parent_guid" => $signed_parts[3],
3955 "parent_type" => $signed_parts[2],
3956 "positive" => $signed_parts[0],
3957 "author_signature" => $item['signature'],
3958 "parent_author_signature" => ""];
3960 // Remove the comment guid
3961 $guid = array_shift($signed_parts);
3963 // Remove the parent guid
3964 $parent_guid = array_shift($signed_parts);
3966 // Remove the handle
3967 $handle = array_pop($signed_parts);
3970 "author" => $handle,
3972 "parent_guid" => $parent_guid,
3973 "text" => implode(";", $signed_parts),
3974 "author_signature" => $item['signature'],
3975 "parent_author_signature" => ""
3982 * @brief Relays messages (like, comment, retraction) to other servers if we are the thread owner
3984 * @param array $item The item that will be exported
3985 * @param array $owner the array of the item owner
3986 * @param array $contact Target of the communication
3987 * @param bool $public_batch Is it a public post?
3989 * @return int The result of the transmission
3990 * @throws \Exception
3992 public static function sendRelay(array $item, array $owner, array $contact, $public_batch = false)
3994 if ($item["deleted"]) {
3995 return self::sendRetraction($item, $owner, $contact, $public_batch, true);
3996 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4002 Logger::log("Got relayable data ".$type." for item ".$item["guid"]." (".$item["id"].")", Logger::DEBUG);
4004 // Old way - is used by the internal Friendica functions
4005 /// @todo Change all signatur storing functions to the new format
4006 if ($item['signed_text'] && $item['signature'] && $item['signer']) {
4007 $message = self::messageFromSignature($item);
4009 $msg = json_decode($item['signed_text'], true);
4012 if (is_array($msg)) {
4013 foreach ($msg as $field => $data) {
4014 if (!$item["deleted"]) {
4015 if ($field == "diaspora_handle") {
4018 if ($field == "target_type") {
4019 $field = "parent_type";
4023 $message[$field] = $data;
4026 Logger::log("Signature text for item ".$item["guid"]." (".$item["id"].") couldn't be extracted: ".$item['signed_text'], Logger::DEBUG);
4030 $message["parent_author_signature"] = self::signature($owner, $message);
4032 Logger::log("Relayed data ".print_r($message, true), Logger::DEBUG);
4034 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
4038 * @brief Sends a retraction (deletion) of a message, like or comment
4040 * @param array $item The item that will be exported
4041 * @param array $owner the array of the item owner
4042 * @param array $contact Target of the communication
4043 * @param bool $public_batch Is it a public post?
4044 * @param bool $relay Is the retraction transmitted from a relay?
4046 * @return int The result of the transmission
4047 * @throws \Exception
4049 public static function sendRetraction(array $item, array $owner, array $contact, $public_batch = false, $relay = false)
4051 $itemaddr = self::handleFromContact($item["contact-id"], $item["author-id"]);
4053 $msg_type = "retraction";
4055 if ($item['id'] == $item['parent']) {
4056 $target_type = "Post";
4057 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4058 $target_type = "Like";
4060 $target_type = "Comment";
4063 $message = ["author" => $itemaddr,
4064 "target_guid" => $item['guid'],
4065 "target_type" => $target_type];
4067 Logger::log("Got message ".print_r($message, true), Logger::DEBUG);
4069 return self::buildAndTransmit($owner, $contact, $msg_type, $message, $public_batch, $item["guid"]);
4073 * @brief Sends a mail
4075 * @param array $item The item that will be exported
4076 * @param array $owner The owner
4077 * @param array $contact Target of the communication
4079 * @return int The result of the transmission
4080 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
4081 * @throws \ImagickException
4083 public static function sendMail(array $item, array $owner, array $contact)
4085 $myaddr = self::myHandle($owner);
4087 $cnv = DBA::selectFirst('conv', [], ['id' => $item["convid"], 'uid' => $item["uid"]]);
4088 if (!DBA::isResult($cnv)) {
4089 Logger::log("conversation not found.");
4093 $body = BBCode::toMarkdown($item["body"]);
4094 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
4097 "author" => $myaddr,
4098 "guid" => $item["guid"],
4099 "conversation_guid" => $cnv["guid"],
4101 "created_at" => $created,
4104 if ($item["reply"]) {
4109 "author" => $cnv["creator"],
4110 "guid" => $cnv["guid"],
4111 "subject" => $cnv["subject"],
4112 "created_at" => DateTimeFormat::utc($cnv['created'], DateTimeFormat::ATOM),
4113 "participants" => $cnv["recips"],
4117 $type = "conversation";
4120 return self::buildAndTransmit($owner, $contact, $type, $message, false, $item["guid"]);
4124 * @brief Split a name into first name and last name
4126 * @param string $name The name
4128 * @return array The array with "first" and "last"
4130 public static function splitName($name) {
4131 $name = trim($name);
4133 // Is the name longer than 64 characters? Then cut the rest of it.
4134 if (strlen($name) > 64) {
4135 if ((strpos($name, ' ') <= 64) && (strpos($name, ' ') !== false)) {
4136 $name = trim(substr($name, 0, strrpos(substr($name, 0, 65), ' ')));
4138 $name = substr($name, 0, 64);
4142 // Take the first word as first name
4143 $first = ((strpos($name, ' ') ? trim(substr($name, 0, strpos($name, ' '))) : $name));
4144 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4145 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4146 return ['first' => $first, 'last' => $last];
4149 // Take the last word as last name
4150 $first = ((strrpos($name, ' ') ? trim(substr($name, 0, strrpos($name, ' '))) : $name));
4151 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4153 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4154 return ['first' => $first, 'last' => $last];
4157 // Take the first 32 characters if there is no space in the first 32 characters
4158 if ((strpos($name, ' ') > 32) || (strpos($name, ' ') === false)) {
4159 $first = substr($name, 0, 32);
4160 $last = substr($name, 32);
4161 return ['first' => $first, 'last' => $last];
4164 $first = trim(substr($name, 0, strrpos(substr($name, 0, 33), ' ')));
4165 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4167 // Check if the last name is longer than 32 characters
4168 if (strlen($last) > 32) {
4169 if (strpos($last, ' ') <= 32) {
4170 $last = trim(substr($last, 0, strrpos(substr($last, 0, 33), ' ')));
4172 $last = substr($last, 0, 32);
4176 return ['first' => $first, 'last' => $last];
4180 * @brief Create profile data
4182 * @param int $uid The user id
4184 * @return array The profile data
4185 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
4187 private static function createProfileData($uid)
4190 "SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.*, `user`.`prvkey` AS `uprvkey`, `contact`.`addr`
4192 INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
4193 INNER JOIN `contact` ON `profile`.`uid` = `contact`.`uid`
4194 WHERE `user`.`uid` = %d AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
4203 $handle = $profile["addr"];
4205 $split_name = self::splitName($profile['name']);
4206 $first = $split_name['first'];
4207 $last = $split_name['last'];
4209 $large = System::baseUrl().'/photo/custom/300/'.$profile['uid'].'.jpg';
4210 $medium = System::baseUrl().'/photo/custom/100/'.$profile['uid'].'.jpg';
4211 $small = System::baseUrl().'/photo/custom/50/' .$profile['uid'].'.jpg';
4212 $searchable = (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false');
4218 if ($searchable === 'true') {
4221 if ($profile['dob'] && ($profile['dob'] > '0000-00-00')) {
4222 list($year, $month, $day) = sscanf($profile['dob'], '%4d-%2d-%2d');
4226 $dob = DateTimeFormat::utc($year . '-' . $month . '-'. $day, 'Y-m-d');
4229 $about = $profile['about'];
4230 $about = strip_tags(BBCode::convert($about));
4232 $location = Profile::formatLocation($profile);
4234 if ($profile['pub_keywords']) {
4235 $kw = str_replace(',', ' ', $profile['pub_keywords']);
4236 $kw = str_replace(' ', ' ', $kw);
4237 $arr = explode(' ', $kw);
4239 for ($x = 0; $x < 5; $x ++) {
4240 if (!empty($arr[$x])) {
4241 $tags .= '#'. trim($arr[$x]) .' ';
4246 $tags = trim($tags);
4249 return ["author" => $handle,
4250 "first_name" => $first,
4251 "last_name" => $last,
4252 "image_url" => $large,
4253 "image_url_medium" => $medium,
4254 "image_url_small" => $small,
4256 "gender" => $profile['gender'],
4258 "location" => $location,
4259 "searchable" => $searchable,
4261 "tag_string" => $tags];
4265 * @brief Sends profile data
4267 * @param int $uid The user id
4268 * @param bool $recips optional, default false
4270 * @throws \Exception
4272 public static function sendProfile($uid, $recips = false)
4278 $owner = User::getOwnerDataById($uid);
4285 "SELECT `id`,`name`,`network`,`pubkey`,`notify` FROM `contact` WHERE `network` = '%s'
4286 AND `uid` = %d AND `rel` != %d",
4287 DBA::escape(Protocol::DIASPORA),
4289 intval(Contact::SHARING)
4297 $message = self::createProfileData($uid);
4299 // @ToDo Split this into single worker jobs
4300 foreach ($recips as $recip) {
4301 Logger::log("Send updated profile data for user ".$uid." to contact ".$recip["id"], Logger::DEBUG);
4302 self::buildAndTransmit($owner, $recip, "profile", $message);
4307 * @brief Creates the signature for likes that are created on our system
4309 * @param integer $uid The user of that comment
4310 * @param array $item Item array
4312 * @return array Signed content
4313 * @throws \Exception
4315 public static function createLikeSignature($uid, array $item)
4317 $owner = User::getOwnerDataById($uid);
4318 if (empty($owner)) {
4319 Logger::log("No owner post, so not storing signature", Logger::DEBUG);
4323 if (!in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4327 $message = self::constructLike($item, $owner);
4328 if ($message === false) {
4332 $message["author_signature"] = self::signature($owner, $message);
4338 * @brief Creates the signature for Comments that are created on our system
4340 * @param integer $uid The user of that comment
4341 * @param array $item Item array
4343 * @return array Signed content
4344 * @throws \Exception
4346 public static function createCommentSignature($uid, array $item)
4348 $owner = User::getOwnerDataById($uid);
4349 if (empty($owner)) {
4350 Logger::log("No owner post, so not storing signature", Logger::DEBUG);
4354 // This is a workaround for the behaviour of the "insert" function, see mod/item.php
4355 $item['thr-parent'] = $item['parent-uri'];
4357 $parent = Item::selectFirst(['parent-uri'], ['uri' => $item['parent-uri']]);
4358 if (!DBA::isResult($parent)) {
4362 $item['parent-uri'] = $parent['parent-uri'];
4364 $message = self::constructComment($item, $owner);
4365 if ($message === false) {
4369 $message["author_signature"] = self::signature($owner, $message);