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\Text\BBCode;
14 use Friendica\Content\Text\Markdown;
15 use Friendica\Core\Cache;
16 use Friendica\Core\Config;
17 use Friendica\Core\L10n;
18 use Friendica\Core\PConfig;
19 use Friendica\Core\System;
20 use Friendica\Core\Worker;
21 use Friendica\Database\DBM;
22 use Friendica\Model\Contact;
23 use Friendica\Model\GContact;
24 use Friendica\Model\Group;
25 use Friendica\Model\Item;
26 use Friendica\Model\Profile;
27 use Friendica\Model\Queue;
28 use Friendica\Model\User;
29 use Friendica\Network\Probe;
30 use Friendica\Util\Crypto;
31 use Friendica\Util\DateTimeFormat;
32 use Friendica\Util\Network;
33 use Friendica\Util\XML;
34 use Friendica\Util\Map;
38 require_once 'include/dba.php';
39 require_once 'include/items.php';
42 * @brief This class contain functions to create and send Diaspora XML files
48 * @brief Return a list of relay servers
50 * The list contains not only the official relays but also servers that we serve directly
52 * @param integer $item_id The id of the item that is sent
53 * @param array $contacts The previously fetched contacts
55 * @return array of relay servers
57 public static function relayList($item_id, $contacts = [])
61 // Fetching relay servers
62 $serverdata = Config::get("system", "relay_server");
63 if ($serverdata != "") {
64 $servers = explode(",", $serverdata);
65 foreach ($servers as $server) {
66 $serverlist[$server] = trim($server);
70 if (Config::get("system", "relay_directly", false)) {
71 // Servers that want to get all content
72 $servers = dba::select('gserver', ['url'], ['relay-subscribe' => true, 'relay-scope' => 'all']);
73 while ($server = dba::fetch($servers)) {
74 $serverlist[$server['url']] = $server['url'];
77 // All tags of the current post
78 $condition = ['otype' => TERM_OBJ_POST, 'type' => TERM_HASHTAG, 'oid' => $item_id];
79 $tags = dba::select('term', ['term'], $condition);
81 while ($tag = dba::fetch($tags)) {
82 $taglist[] = $tag['term'];
85 // All servers who wants content with this tag
87 if (!empty($taglist)) {
88 $tagserver = dba::select('gserver-tag', ['gserver-id'], ['tag' => $taglist]);
89 while ($server = dba::fetch($tagserver)) {
90 $tagserverlist[] = $server['gserver-id'];
94 // All adresses with the given id
95 if (!empty($tagserverlist)) {
96 $servers = dba::select('gserver', ['url'], ['relay-subscribe' => true, 'relay-scope' => 'tags', 'id' => $tagserverlist]);
97 while ($server = dba::fetch($servers)) {
98 $serverlist[$server['url']] = $server['url'];
103 // Now we are collecting all relay contacts
104 foreach ($serverlist as $server_url) {
105 // We don't send messages to ourselves
106 if (link_compare($server_url, System::baseUrl())) {
109 $contact = self::getRelayContact($server_url);
110 if (is_bool($contact)) {
115 foreach ($contacts as $entry) {
116 if ($entry['batch'] == $contact['batch']) {
122 $contacts[] = $contact;
130 * @brief Return a contact for a given server address or creates a dummy entry
132 * @param string $server_url The url of the server
133 * @return array with the contact
135 private static function getRelayContact($server_url)
137 $batch = $server_url . '/receive/public';
139 $fields = ['batch', 'id', 'name', 'network', 'archive', 'blocked'];
141 // Fetch the relay contact
142 $condition = ['uid' => 0, 'network' => NETWORK_DIASPORA, 'batch' => $batch,
143 'contact-type' => ACCOUNT_TYPE_RELAY];
144 $contact = dba::selectFirst('contact', $fields, $condition);
146 // If there is nothing found, we check if there is some unmarked relay
147 // This code segment can be removed before the release 2018-05
148 if (!DBM::is_result($contact)) {
149 $condition = ['uid' => 0, 'network' => NETWORK_DIASPORA, 'batch' => $batch,
150 'name' => 'relay', 'nick' => 'relay', 'url' => $server_url];
151 $contact = dba::selectFirst('contact', $fields, $condition);
153 if (DBM::is_result($contact)) {
154 // Mark the relay account as a relay account
155 $fields = ['contact-type' => ACCOUNT_TYPE_RELAY];
156 dba::update('contact', $fields, ['id' => $contact['id']]);
159 if (DBM::is_result($contact)) {
160 if ($contact['archive'] || $contact['blocked']) {
165 $fields = ['uid' => 0, 'created' => DateTimeFormat::utcNow(),
166 'name' => 'relay', 'nick' => 'relay',
167 'url' => $server_url, 'nurl' => normalise_link($server_url),
168 'batch' => $batch, 'network' => NETWORK_DIASPORA,
169 'rel' => CONTACT_IS_FOLLOWER, 'blocked' => false,
170 'contact-type' => ACCOUNT_TYPE_RELAY,
171 'pending' => false, 'writable' => true];
172 dba::insert('contact', $fields);
174 $fields = ['batch', 'id', 'name', 'network'];
175 $contact = dba::selectFirst('contact', $fields, $condition);
176 if (DBM::is_result($contact)) {
182 // It should never happen that we arrive here
187 * @brief Return a list of participating contacts for a thread
189 * This is used for the participation feature.
190 * One of the parameters is a contact array.
191 * This is done to avoid duplicates.
193 * @param integer $thread The id of the thread
194 * @param array $contacts The previously fetched contacts
196 * @return array of relay servers
198 public static function participantsForThread($thread, $contacts)
200 $r = dba::p("SELECT `contact`.`batch`, `contact`.`id`, `contact`.`name`, `contact`.`network`,
201 `fcontact`.`batch` AS `fbatch`, `fcontact`.`network` AS `fnetwork` FROM `participation`
202 INNER JOIN `contact` ON `contact`.`id` = `participation`.`cid`
203 INNER JOIN `fcontact` ON `fcontact`.`id` = `participation`.`fid`
204 WHERE `participation`.`iid` = ?", $thread);
206 while ($contact = dba::fetch($r)) {
207 if (!empty($contact['fnetwork'])) {
208 $contact['network'] = $contact['fnetwork'];
210 unset($contact['fnetwork']);
212 if (empty($contact['batch']) && !empty($contact['fbatch'])) {
213 $contact['batch'] = $contact['fbatch'];
215 unset($contact['fbatch']);
218 foreach ($contacts as $entry) {
219 if ($entry['batch'] == $contact['batch']) {
225 $contacts[] = $contact;
234 * @brief repairs a signature that was double encoded
236 * The function is unused at the moment. It was copied from the old implementation.
238 * @param string $signature The signature
239 * @param string $handle The handle of the signature owner
240 * @param integer $level This value is only set inside this function to avoid endless loops
242 * @return string the repaired signature
244 private static function repairSignature($signature, $handle = "", $level = 1)
246 if ($signature == "") {
250 if (base64_encode(base64_decode(base64_decode($signature))) == base64_decode($signature)) {
251 $signature = base64_decode($signature);
252 logger("Repaired double encoded signature from Diaspora/Hubzilla handle ".$handle." - level ".$level, LOGGER_DEBUG);
254 // Do a recursive call to be able to fix even multiple levels
256 $signature = self::repairSignature($signature, $handle, ++$level);
264 * @brief verify the envelope and return the verified data
266 * @param string $envelope The magic envelope
268 * @return string verified data
270 private static function verifyMagicEnvelope($envelope)
272 $basedom = XML::parseString($envelope);
274 if (!is_object($basedom)) {
275 logger("Envelope is no XML file");
279 $children = $basedom->children('http://salmon-protocol.org/ns/magic-env');
281 if (sizeof($children) == 0) {
282 logger("XML has no children");
288 $data = base64url_decode($children->data);
289 $type = $children->data->attributes()->type[0];
291 $encoding = $children->encoding;
293 $alg = $children->alg;
295 $sig = base64url_decode($children->sig);
296 $key_id = $children->sig->attributes()->key_id[0];
298 $handle = base64url_decode($key_id);
301 $b64url_data = base64url_encode($data);
302 $msg = str_replace(["\n", "\r", " ", "\t"], ["", "", "", ""], $b64url_data);
304 $signable_data = $msg.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
307 logger('No author could be decoded. Discarding. Message: ' . $envelope);
311 $key = self::key($handle);
313 logger("Couldn't get a key for handle " . $handle . ". Discarding.");
317 $verify = Crypto::rsaVerify($signable_data, $sig, $key);
319 logger('Message from ' . $handle . ' did not verify. Discarding.');
327 * @brief encrypts data via AES
329 * @param string $key The AES key
330 * @param string $iv The IV (is used for CBC encoding)
331 * @param string $data The data that is to be encrypted
333 * @return string encrypted data
335 private static function aesEncrypt($key, $iv, $data)
337 return openssl_encrypt($data, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
341 * @brief decrypts data via AES
343 * @param string $key The AES key
344 * @param string $iv The IV (is used for CBC encoding)
345 * @param string $encrypted The encrypted data
347 * @return string decrypted data
349 private static function aesDecrypt($key, $iv, $encrypted)
351 return openssl_decrypt($encrypted, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
355 * @brief: Decodes incoming Diaspora message in the new format
357 * @param array $importer Array of the importer user
358 * @param string $raw raw post message
361 * 'message' -> decoded Diaspora XML message
362 * 'author' -> author diaspora handle
363 * 'key' -> author public key (converted to pkcs#8)
365 public static function decodeRaw($importer, $raw)
367 $data = json_decode($raw);
369 // Is it a private post? Then decrypt the outer Salmon
370 if (is_object($data)) {
371 $encrypted_aes_key_bundle = base64_decode($data->aes_key);
372 $ciphertext = base64_decode($data->encrypted_magic_envelope);
374 $outer_key_bundle = '';
375 @openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $importer['prvkey']);
376 $j_outer_key_bundle = json_decode($outer_key_bundle);
378 if (!is_object($j_outer_key_bundle)) {
379 logger('Outer Salmon did not verify. Discarding.');
380 System::httpExit(400);
383 $outer_iv = base64_decode($j_outer_key_bundle->iv);
384 $outer_key = base64_decode($j_outer_key_bundle->key);
386 $xml = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
391 $basedom = XML::parseString($xml);
393 if (!is_object($basedom)) {
394 logger('Received data does not seem to be an XML. Discarding. '.$xml);
395 System::httpExit(400);
398 $base = $basedom->children(NAMESPACE_SALMON_ME);
400 // Not sure if this cleaning is needed
401 $data = str_replace([" ", "\t", "\r", "\n"], ["", "", "", ""], $base->data);
403 // Build the signed data
404 $type = $base->data[0]->attributes()->type[0];
405 $encoding = $base->encoding;
407 $signed_data = $data.'.'.base64url_encode($type).'.'.base64url_encode($encoding).'.'.base64url_encode($alg);
409 // This is the signature
410 $signature = base64url_decode($base->sig);
412 // Get the senders' public key
413 $key_id = $base->sig[0]->attributes()->key_id[0];
414 $author_addr = base64_decode($key_id);
415 if ($author_addr == '') {
416 logger('No author could be decoded. Discarding. Message: ' . $xml);
417 System::httpExit(400);
420 $key = self::key($author_addr);
422 logger("Couldn't get a key for handle " . $author_addr . ". Discarding.");
423 System::httpExit(400);
426 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
428 logger('Message did not verify. Discarding.');
429 System::httpExit(400);
432 return ['message' => (string)base64url_decode($base->data),
433 'author' => unxmlify($author_addr),
434 'key' => (string)$key];
438 * @brief: Decodes incoming Diaspora message in the deprecated format
440 * @param array $importer Array of the importer user
441 * @param string $xml urldecoded Diaspora salmon
444 * 'message' -> decoded Diaspora XML message
445 * 'author' -> author diaspora handle
446 * 'key' -> author public key (converted to pkcs#8)
448 public static function decode($importer, $xml)
451 $basedom = XML::parseString($xml);
453 if (!is_object($basedom)) {
454 logger("XML is not parseable.");
457 $children = $basedom->children('https://joindiaspora.com/protocol');
459 $inner_aes_key = null;
462 if ($children->header) {
464 $author_link = str_replace('acct:', '', $children->header->author_id);
466 // This happens with posts from a relais
468 logger("This is no private post in the old format", LOGGER_DEBUG);
472 $encrypted_header = json_decode(base64_decode($children->encrypted_header));
474 $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
475 $ciphertext = base64_decode($encrypted_header->ciphertext);
477 $outer_key_bundle = '';
478 openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $importer['prvkey']);
480 $j_outer_key_bundle = json_decode($outer_key_bundle);
482 $outer_iv = base64_decode($j_outer_key_bundle->iv);
483 $outer_key = base64_decode($j_outer_key_bundle->key);
485 $decrypted = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
487 logger('decrypted: '.$decrypted, LOGGER_DEBUG);
488 $idom = XML::parseString($decrypted);
490 $inner_iv = base64_decode($idom->iv);
491 $inner_aes_key = base64_decode($idom->aes_key);
493 $author_link = str_replace('acct:', '', $idom->author_id);
496 $dom = $basedom->children(NAMESPACE_SALMON_ME);
498 // figure out where in the DOM tree our data is hiding
501 if ($dom->provenance->data) {
502 $base = $dom->provenance;
503 } elseif ($dom->env->data) {
505 } elseif ($dom->data) {
510 logger('unable to locate salmon data in xml');
511 System::httpExit(400);
515 // Stash the signature away for now. We have to find their key or it won't be good for anything.
516 $signature = base64url_decode($base->sig);
520 // strip whitespace so our data element will return to one big base64 blob
521 $data = str_replace([" ", "\t", "\r", "\n"], ["", "", "", ""], $base->data);
524 // stash away some other stuff for later
526 $type = $base->data[0]->attributes()->type[0];
527 $keyhash = $base->sig[0]->attributes()->keyhash[0];
528 $encoding = $base->encoding;
532 $signed_data = $data.'.'.base64url_encode($type).'.'.base64url_encode($encoding).'.'.base64url_encode($alg);
536 $data = base64url_decode($data);
540 $inner_decrypted = $data;
542 // Decode the encrypted blob
543 $inner_encrypted = base64_decode($data);
544 $inner_decrypted = self::aesDecrypt($inner_aes_key, $inner_iv, $inner_encrypted);
548 logger('Could not retrieve author URI.');
549 System::httpExit(400);
551 // Once we have the author URI, go to the web and try to find their public key
552 // (first this will look it up locally if it is in the fcontact cache)
553 // This will also convert diaspora public key from pkcs#1 to pkcs#8
555 logger('Fetching key for '.$author_link);
556 $key = self::key($author_link);
559 logger('Could not retrieve author key.');
560 System::httpExit(400);
563 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
566 logger('Message did not verify. Discarding.');
567 System::httpExit(400);
570 logger('Message verified.');
572 return ['message' => (string)$inner_decrypted,
573 'author' => unxmlify($author_link),
574 'key' => (string)$key];
579 * @brief Dispatches public messages and find the fitting receivers
581 * @param array $msg The post that will be dispatched
583 * @return int The message id of the generated message, "true" or "false" if there was an error
585 public static function dispatchPublic($msg)
587 $enabled = intval(Config::get("system", "diaspora_enabled"));
589 logger("diaspora is disabled");
593 if (!($postdata = self::validPosting($msg))) {
594 logger("Invalid posting");
598 $fields = $postdata['fields'];
600 // Is it a an action (comment, like, ...) for our own post?
601 if (isset($fields->parent_guid) && !$postdata["relayed"]) {
602 $guid = notags(unxmlify($fields->parent_guid));
603 $importer = self::importerForGuid($guid);
604 if (is_array($importer)) {
605 logger("delivering to origin: ".$importer["name"]);
606 $message_id = self::dispatch($importer, $msg, $fields);
611 // Process item retractions. This has to be done separated from the other stuff,
612 // since retractions for comments could come even from non followers.
613 if (!empty($fields) && in_array($fields->getName(), ['retraction'])) {
614 $target = notags(unxmlify($fields->target_type));
615 if (in_array($target, ["Comment", "Like", "Post", "Reshare", "StatusMessage"])) {
616 logger('processing retraction for '.$target, LOGGER_DEBUG);
617 $importer = ["uid" => 0, "page-flags" => PAGE_FREELOVE];
618 $message_id = self::dispatch($importer, $msg, $fields);
623 // Now distribute it to the followers
625 "SELECT `user`.* FROM `user` WHERE `user`.`uid` IN
626 (SELECT `contact`.`uid` FROM `contact` WHERE `contact`.`network` = '%s' AND `contact`.`addr` = '%s')
627 AND NOT `account_expired` AND NOT `account_removed`",
628 dbesc(NETWORK_DIASPORA),
629 dbesc($msg["author"])
632 if (DBM::is_result($r)) {
633 foreach ($r as $rr) {
634 logger("delivering to: ".$rr["username"]);
635 self::dispatch($rr, $msg, $fields);
637 } elseif (!Config::get('system', 'relay_subscribe', false)) {
638 logger("Unwanted message from ".$msg["author"]." send by ".$_SERVER["REMOTE_ADDR"]." with ".$_SERVER["HTTP_USER_AGENT"].": ".print_r($msg, true), LOGGER_DEBUG);
640 // Use a dummy importer to import the data for the public copy
641 $importer = ["uid" => 0, "page-flags" => PAGE_FREELOVE];
642 $message_id = self::dispatch($importer, $msg, $fields);
649 * @brief Dispatches the different message types to the different functions
651 * @param array $importer Array of the importer user
652 * @param array $msg The post that will be dispatched
653 * @param object $fields SimpleXML object that contains the message
655 * @return int The message id of the generated message, "true" or "false" if there was an error
657 public static function dispatch($importer, $msg, $fields = null)
659 // The sender is the handle of the contact that sent the message.
660 // This will often be different with relayed messages (for example "like" and "comment")
661 $sender = $msg["author"];
663 // This is only needed for private postings since this is already done for public ones before
664 if (is_null($fields)) {
665 if (!($postdata = self::validPosting($msg))) {
666 logger("Invalid posting");
669 $fields = $postdata['fields'];
672 $type = $fields->getName();
674 logger("Received message type ".$type." from ".$sender." for user ".$importer["uid"], LOGGER_DEBUG);
677 case "account_migration":
678 return self::receiveAccountMigration($importer, $fields);
680 case "account_deletion":
681 return self::receiveAccountDeletion($importer, $fields);
684 return self::receiveComment($importer, $sender, $fields, $msg["message"]);
687 return self::receiveContactRequest($importer, $fields);
690 return self::receiveConversation($importer, $msg, $fields);
693 return self::receiveLike($importer, $sender, $fields);
696 return self::receiveMessage($importer, $fields);
698 case "participation":
699 return self::receiveParticipation($importer, $fields);
701 case "photo": // Not implemented
702 return self::receivePhoto($importer, $fields);
704 case "poll_participation": // Not implemented
705 return self::receivePollParticipation($importer, $fields);
708 return self::receiveProfile($importer, $fields);
711 return self::receiveReshare($importer, $fields, $msg["message"]);
714 return self::receiveRetraction($importer, $sender, $fields);
716 case "status_message":
717 return self::receiveStatusMessage($importer, $fields, $msg["message"]);
720 logger("Unknown message type ".$type);
728 * @brief Checks if a posting is valid and fetches the data fields.
730 * This function does not only check the signature.
731 * It also does the conversion between the old and the new diaspora format.
733 * @param array $msg Array with the XML, the sender handle and the sender signature
735 * @return bool|array If the posting is valid then an array with an SimpleXML object is returned
737 private static function validPosting($msg)
739 $data = XML::parseString($msg["message"]);
741 if (!is_object($data)) {
742 logger("No valid XML ".$msg["message"], LOGGER_DEBUG);
746 // Is this the new or the old version?
747 if ($data->getName() == "XML") {
749 foreach ($data->post->children() as $child) {
757 $type = $element->getName();
760 logger("Got message type ".$type.": ".$msg["message"], LOGGER_DATA);
762 // All retractions are handled identically from now on.
763 // In the new version there will only be "retraction".
764 if (in_array($type, ["signed_retraction", "relayable_retraction"]))
765 $type = "retraction";
767 if ($type == "request") {
771 $fields = new SimpleXMLElement("<".$type."/>");
774 $author_signature = null;
775 $parent_author_signature = null;
777 foreach ($element->children() as $fieldname => $entry) {
779 // Translation for the old XML structure
780 if ($fieldname == "diaspora_handle") {
781 $fieldname = "author";
783 if ($fieldname == "participant_handles") {
784 $fieldname = "participants";
786 if (in_array($type, ["like", "participation"])) {
787 if ($fieldname == "target_type") {
788 $fieldname = "parent_type";
791 if ($fieldname == "sender_handle") {
792 $fieldname = "author";
794 if ($fieldname == "recipient_handle") {
795 $fieldname = "recipient";
797 if ($fieldname == "root_diaspora_id") {
798 $fieldname = "root_author";
800 if ($type == "status_message") {
801 if ($fieldname == "raw_message") {
805 if ($type == "retraction") {
806 if ($fieldname == "post_guid") {
807 $fieldname = "target_guid";
809 if ($fieldname == "type") {
810 $fieldname = "target_type";
815 if (($fieldname == "author_signature") && ($entry != "")) {
816 $author_signature = base64_decode($entry);
817 } elseif (($fieldname == "parent_author_signature") && ($entry != "")) {
818 $parent_author_signature = base64_decode($entry);
819 } elseif (!in_array($fieldname, ["author_signature", "parent_author_signature", "target_author_signature"])) {
820 if ($signed_data != "") {
824 $signed_data .= $entry;
826 if (!in_array($fieldname, ["parent_author_signature", "target_author_signature"])
827 || ($orig_type == "relayable_retraction")
829 XML::copy($entry, $fields, $fieldname);
833 // This is something that shouldn't happen at all.
834 if (in_array($type, ["status_message", "reshare", "profile"])) {
835 if ($msg["author"] != $fields->author) {
836 logger("Message handle is not the same as envelope sender. Quitting this message.");
841 // Only some message types have signatures. So we quit here for the other types.
842 if (!in_array($type, ["comment", "like"])) {
843 return ["fields" => $fields, "relayed" => false];
845 // No author_signature? This is a must, so we quit.
846 if (!isset($author_signature)) {
847 logger("No author signature for type ".$type." - Message: ".$msg["message"], LOGGER_DEBUG);
851 if (isset($parent_author_signature)) {
854 $key = self::key($msg["author"]);
856 if (!Crypto::rsaVerify($signed_data, $parent_author_signature, $key, "sha256")) {
857 logger("No valid parent author signature for parent author ".$msg["author"]. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$parent_author_signature, LOGGER_DEBUG);
864 $key = self::key($fields->author);
866 if (!Crypto::rsaVerify($signed_data, $author_signature, $key, "sha256")) {
867 logger("No valid author signature for author ".$fields->author. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$author_signature, LOGGER_DEBUG);
870 return ["fields" => $fields, "relayed" => $relayed];
875 * @brief Fetches the public key for a given handle
877 * @param string $handle The handle
879 * @return string The public key
881 private static function key($handle)
883 $handle = strval($handle);
885 logger("Fetching diaspora key for: ".$handle);
887 $r = self::personByHandle($handle);
896 * @brief Fetches data for a given handle
898 * @param string $handle The handle
900 * @return array the queried data
902 public static function personByHandle($handle)
906 $person = dba::selectFirst('fcontact', [], ['network' => NETWORK_DIASPORA, 'addr' => $handle]);
907 if (DBM::is_result($person)) {
908 logger("In cache " . print_r($person, true), LOGGER_DEBUG);
910 // update record occasionally so it doesn't get stale
911 $d = strtotime($person["updated"]." +00:00");
912 if ($d < strtotime("now - 14 days")) {
916 if ($person["guid"] == "") {
921 if (!DBM::is_result($person) || $update) {
922 logger("create or refresh", LOGGER_DEBUG);
923 $r = Probe::uri($handle, NETWORK_DIASPORA);
925 // Note that Friendica contacts will return a "Diaspora person"
926 // if Diaspora connectivity is enabled on their server
927 if ($r && ($r["network"] === NETWORK_DIASPORA)) {
928 self::addFContact($r, $update);
930 // Fetch the updated or added contact
931 $person = dba::selectFirst('fcontact', [], ['network' => NETWORK_DIASPORA, 'addr' => $handle]);
932 if (!DBM::is_result($person)) {
942 * @brief Updates the fcontact table
944 * @param array $arr The fcontact data
945 * @param bool $update Update or insert?
947 * @return string The id of the fcontact entry
949 private static function addFContact($arr, $update = false)
953 "UPDATE `fcontact` SET
967 WHERE `url` = '%s' AND `network` = '%s'",
969 dbesc($arr["photo"]),
970 dbesc($arr["request"]),
972 dbesc(strtolower($arr["addr"])),
974 dbesc($arr["batch"]),
975 dbesc($arr["notify"]),
977 dbesc($arr["confirm"]),
978 dbesc($arr["alias"]),
979 dbesc($arr["pubkey"]),
980 dbesc(DateTimeFormat::utcNow()),
982 dbesc($arr["network"])
986 "INSERT INTO `fcontact` (`url`,`name`,`photo`,`request`,`nick`,`addr`, `guid`,
987 `batch`, `notify`,`poll`,`confirm`,`network`,`alias`,`pubkey`,`updated`)
988 VALUES ('%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s')",
991 dbesc($arr["photo"]),
992 dbesc($arr["request"]),
996 dbesc($arr["batch"]),
997 dbesc($arr["notify"]),
999 dbesc($arr["confirm"]),
1000 dbesc($arr["network"]),
1001 dbesc($arr["alias"]),
1002 dbesc($arr["pubkey"]),
1003 dbesc(DateTimeFormat::utcNow())
1011 * @brief get a handle (user@domain.tld) from a given contact id
1013 * @param int $contact_id The id in the contact table
1014 * @param int $pcontact_id The id in the contact table (Used for the public contact)
1016 * @return string the handle
1018 private static function handleFromContact($contact_id, $pcontact_id = 0)
1022 logger("contact id is ".$contact_id." - pcontact id is ".$pcontact_id, LOGGER_DEBUG);
1024 if ($pcontact_id != 0) {
1026 "SELECT `addr` FROM `contact` WHERE `id` = %d AND `addr` != ''",
1027 intval($pcontact_id)
1030 if (DBM::is_result($r)) {
1031 return strtolower($r[0]["addr"]);
1036 "SELECT `network`, `addr`, `self`, `url`, `nick` FROM `contact` WHERE `id` = %d",
1040 if (DBM::is_result($r)) {
1043 logger("contact 'self' = ".$contact['self']." 'url' = ".$contact['url'], LOGGER_DEBUG);
1045 if ($contact['addr'] != "") {
1046 $handle = $contact['addr'];
1048 $baseurl_start = strpos($contact['url'], '://') + 3;
1049 // allows installations in a subdirectory--not sure how Diaspora will handle
1050 $baseurl_length = strpos($contact['url'], '/profile') - $baseurl_start;
1051 $baseurl = substr($contact['url'], $baseurl_start, $baseurl_length);
1052 $handle = $contact['nick'].'@'.$baseurl;
1056 return strtolower($handle);
1060 * @brief get a url (scheme://domain.tld/u/user) from a given Diaspora*
1063 * @param mixed $fcontact_guid Hexadecimal string guid
1065 * @return string the contact url or null
1067 public static function urlFromContactGuid($fcontact_guid)
1069 logger("fcontact guid is ".$fcontact_guid, LOGGER_DEBUG);
1072 "SELECT `url` FROM `fcontact` WHERE `url` != '' AND `network` = '%s' AND `guid` = '%s'",
1073 dbesc(NETWORK_DIASPORA),
1074 dbesc($fcontact_guid)
1077 if (DBM::is_result($r)) {
1078 return $r[0]['url'];
1085 * @brief Get a contact id for a given handle
1087 * @todo Move to Friendica\Model\Contact
1089 * @param int $uid The user id
1090 * @param string $handle The handle in the format user@domain.tld
1092 * @return int Contact id
1094 private static function contactByHandle($uid, $handle)
1096 // First do a direct search on the contact table
1098 "SELECT * FROM `contact` WHERE `uid` = %d AND `addr` = '%s' LIMIT 1",
1103 if (DBM::is_result($r)) {
1107 * We haven't found it?
1108 * We use another function for it that will possibly create a contact entry.
1110 $cid = Contact::getIdForURL($handle, $uid);
1113 /// @TODO Contact retrieval should be encapsulated into an "entity" class like `Contact`
1114 $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1", intval($cid));
1116 if (DBM::is_result($r)) {
1122 $handle_parts = explode("@", $handle);
1123 $nurl_sql = "%%://".$handle_parts[1]."%%/profile/".$handle_parts[0];
1125 "SELECT * FROM `contact` WHERE `network` = '%s' AND `uid` = %d AND `nurl` LIKE '%s' LIMIT 1",
1126 dbesc(NETWORK_DFRN),
1130 if (DBM::is_result($r)) {
1134 logger("Haven't found contact for user ".$uid." and handle ".$handle, LOGGER_DEBUG);
1139 * @brief Check if posting is allowed for this contact
1141 * @param array $importer Array of the importer user
1142 * @param array $contact The contact that is checked
1143 * @param bool $is_comment Is the check for a comment?
1145 * @return bool is the contact allowed to post?
1147 private static function postAllow($importer, $contact, $is_comment = false)
1150 * Perhaps we were already sharing with this person. Now they're sharing with us.
1151 * That makes us friends.
1152 * Normally this should have handled by getting a request - but this could get lost
1154 // It is deactivated by now, due to side effects. See issue https://github.com/friendica/friendica/pull/4033
1155 // It is not removed by now. Possibly the code is needed?
1156 //if (!$is_comment && $contact["rel"] == CONTACT_IS_FOLLOWER && in_array($importer["page-flags"], array(PAGE_FREELOVE))) {
1159 // array('rel' => CONTACT_IS_FRIEND, 'writable' => true),
1160 // array('id' => $contact["id"], 'uid' => $contact["uid"])
1163 // $contact["rel"] = CONTACT_IS_FRIEND;
1164 // logger("defining user ".$contact["nick"]." as friend");
1167 // We don't seem to like that person
1168 if ($contact["blocked"] || $contact["readonly"]) {
1169 // Maybe blocked, don't accept.
1171 // We are following this person?
1172 } elseif (($contact["rel"] == CONTACT_IS_SHARING) || ($contact["rel"] == CONTACT_IS_FRIEND)) {
1173 // Yes, then it is fine.
1175 // Is it a post to a community?
1176 } elseif (($contact["rel"] == CONTACT_IS_FOLLOWER) && ($importer["page-flags"] == PAGE_COMMUNITY)) {
1179 // Is the message a global user or a comment?
1180 } elseif (($importer["uid"] == 0) || $is_comment) {
1181 // Messages for the global users and comments are always accepted
1189 * @brief Fetches the contact id for a handle and checks if posting is allowed
1191 * @param array $importer Array of the importer user
1192 * @param string $handle The checked handle in the format user@domain.tld
1193 * @param bool $is_comment Is the check for a comment?
1195 * @return array The contact data
1197 private static function allowedContactByHandle($importer, $handle, $is_comment = false)
1199 $contact = self::contactByHandle($importer["uid"], $handle);
1201 logger("A Contact for handle ".$handle." and user ".$importer["uid"]." was not found");
1202 // If a contact isn't found, we accept it anyway if it is a comment
1210 if (!self::postAllow($importer, $contact, $is_comment)) {
1211 logger("The handle: ".$handle." is not allowed to post to user ".$importer["uid"]);
1218 * @brief Does the message already exists on the system?
1220 * @param int $uid The user id
1221 * @param string $guid The guid of the message
1223 * @return int|bool message id if the message already was stored into the system - or false.
1225 private static function messageExists($uid, $guid)
1228 "SELECT `id` FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1233 if (DBM::is_result($r)) {
1234 logger("message ".$guid." already exists for user ".$uid);
1242 * @brief Checks for links to posts in a message
1244 * @param array $item The item array
1247 private static function fetchGuid($item)
1249 $expression = "=diaspora://.*?/post/([0-9A-Za-z\-_@.:]{15,254}[0-9A-Za-z])=ism";
1250 preg_replace_callback(
1252 function ($match) use ($item) {
1253 self::fetchGuidSub($match, $item);
1258 preg_replace_callback(
1259 "&\[url=/posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
1260 function ($match) use ($item) {
1261 self::fetchGuidSub($match, $item);
1268 * @brief Checks for relative /people/* links in an item body to match local
1269 * contacts or prepends the remote host taken from the author link.
1271 * @param string $body The item body to replace links from
1272 * @param string $author_link The author link for missing local contact fallback
1274 * @return string the replaced string
1276 public static function replacePeopleGuid($body, $author_link)
1278 $return = preg_replace_callback(
1279 "&\[url=/people/([^\[\]]*)\](.*)\[\/url\]&Usi",
1280 function ($match) use ($author_link) {
1282 // 0 => '[url=/people/0123456789abcdef]Foo Bar[/url]'
1283 // 1 => '0123456789abcdef'
1285 $handle = self::urlFromContactGuid($match[1]);
1288 $return = '@[url='.$handle.']'.$match[2].'[/url]';
1290 // No local match, restoring absolute remote URL from author scheme and host
1291 $author_url = parse_url($author_link);
1292 $return = '[url='.$author_url['scheme'].'://'.$author_url['host'].'/people/'.$match[1].']'.$match[2].'[/url]';
1304 * @brief sub function of "fetchGuid" which checks for links in messages
1306 * @param array $match array containing a link that has to be checked for a message link
1307 * @param array $item The item array
1310 private static function fetchGuidSub($match, $item)
1312 if (!self::storeByGuid($match[1], $item["author-link"])) {
1313 self::storeByGuid($match[1], $item["owner-link"]);
1318 * @brief Fetches an item with a given guid from a given server
1320 * @param string $guid the message guid
1321 * @param string $server The server address
1322 * @param int $uid The user id of the user
1324 * @return int the message id of the stored message or false
1326 private static function storeByGuid($guid, $server, $uid = 0)
1328 $serverparts = parse_url($server);
1329 $server = $serverparts["scheme"]."://".$serverparts["host"];
1331 logger("Trying to fetch item ".$guid." from ".$server, LOGGER_DEBUG);
1333 $msg = self::message($guid, $server);
1339 logger("Successfully fetched item ".$guid." from ".$server, LOGGER_DEBUG);
1341 // Now call the dispatcher
1342 return self::dispatchPublic($msg);
1346 * @brief Fetches a message from a server
1348 * @param string $guid message guid
1349 * @param string $server The url of the server
1350 * @param int $level Endless loop prevention
1353 * 'message' => The message XML
1354 * 'author' => The author handle
1355 * 'key' => The public key of the author
1357 private static function message($guid, $server, $level = 0)
1363 // This will work for new Diaspora servers and Friendica servers from 3.5
1364 $source_url = $server."/fetch/post/".urlencode($guid);
1366 logger("Fetch post from ".$source_url, LOGGER_DEBUG);
1368 $envelope = Network::fetchUrl($source_url);
1370 logger("Envelope was fetched.", LOGGER_DEBUG);
1371 $x = self::verifyMagicEnvelope($envelope);
1373 logger("Envelope could not be verified.", LOGGER_DEBUG);
1375 logger("Envelope was verified.", LOGGER_DEBUG);
1381 // This will work for older Diaspora and Friendica servers
1383 $source_url = $server."/p/".urlencode($guid).".xml";
1384 logger("Fetch post from ".$source_url, LOGGER_DEBUG);
1386 $x = Network::fetchUrl($source_url);
1392 $source_xml = XML::parseString($x);
1394 if (!is_object($source_xml)) {
1398 if ($source_xml->post->reshare) {
1399 // Reshare of a reshare - old Diaspora version
1400 logger("Message is a reshare", LOGGER_DEBUG);
1401 return self::message($source_xml->post->reshare->root_guid, $server, ++$level);
1402 } elseif ($source_xml->getName() == "reshare") {
1403 // Reshare of a reshare - new Diaspora version
1404 logger("Message is a new reshare", LOGGER_DEBUG);
1405 return self::message($source_xml->root_guid, $server, ++$level);
1410 // Fetch the author - for the old and the new Diaspora version
1411 if ($source_xml->post->status_message->diaspora_handle) {
1412 $author = (string)$source_xml->post->status_message->diaspora_handle;
1413 } elseif ($source_xml->author && ($source_xml->getName() == "status_message")) {
1414 $author = (string)$source_xml->author;
1417 // If this isn't a "status_message" then quit
1419 logger("Message doesn't seem to be a status message", LOGGER_DEBUG);
1423 $msg = ["message" => $x, "author" => $author];
1425 $msg["key"] = self::key($msg["author"]);
1431 * @brief Fetches the item record of a given guid
1433 * @param int $uid The user id
1434 * @param string $guid message guid
1435 * @param string $author The handle of the item
1436 * @param array $contact The contact of the item owner
1438 * @return array the item record
1440 private static function parentItem($uid, $guid, $author, $contact)
1443 "SELECT `id`, `parent`, `body`, `wall`, `uri`, `guid`, `private`, `origin`,
1444 `author-name`, `author-link`, `author-avatar`,
1445 `owner-name`, `owner-link`, `owner-avatar`
1446 FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1452 $result = self::storeByGuid($guid, $contact["url"], $uid);
1455 $person = self::personByHandle($author);
1456 $result = self::storeByGuid($guid, $person["url"], $uid);
1460 logger("Fetched missing item ".$guid." - result: ".$result, LOGGER_DEBUG);
1463 "SELECT `id`, `body`, `wall`, `uri`, `private`, `origin`,
1464 `author-name`, `author-link`, `author-avatar`,
1465 `owner-name`, `owner-link`, `owner-avatar`
1466 FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1474 logger("parent item not found: parent: ".$guid." - user: ".$uid);
1477 logger("parent item found: parent: ".$guid." - user: ".$uid);
1483 * @brief returns contact details
1485 * @param array $def_contact The default contact if the person isn't found
1486 * @param array $person The record of the person
1487 * @param int $uid The user id
1490 * 'cid' => contact id
1491 * 'network' => network type
1493 private static function authorContactByUrl($def_contact, $person, $uid)
1495 $condition = ['nurl' => normalise_link($person["url"]), 'uid' => $uid];
1496 $contact = dba::selectFirst('contact', ['id', 'network'], $condition);
1497 if (DBM::is_result($contact)) {
1498 $cid = $contact["id"];
1499 $network = $contact["network"];
1501 $cid = $def_contact["id"];
1502 $network = NETWORK_DIASPORA;
1505 return ["cid" => $cid, "network" => $network];
1509 * @brief Is the profile a hubzilla profile?
1511 * @param string $url The profile link
1513 * @return bool is it a hubzilla server?
1515 public static function isRedmatrix($url)
1517 return(strstr($url, "/channel/"));
1521 * @brief Generate a post link with a given handle and message guid
1523 * @param string $addr The user handle
1524 * @param string $guid message guid
1525 * @param string $parent_guid optional parent guid
1527 * @return string the post link
1529 private static function plink($addr, $guid, $parent_guid = '')
1531 $r = q("SELECT `url`, `nick`, `network` FROM `fcontact` WHERE `addr`='%s' LIMIT 1", dbesc($addr));
1534 if (!DBM::is_result($r)) {
1535 if ($parent_guid != '') {
1536 return "https://".substr($addr, strpos($addr, "@") + 1) . "/posts/" . $parent_guid . "#" . $guid;
1538 return "https://".substr($addr, strpos($addr, "@") + 1) . "/posts/" . $guid;
1542 // Friendica contacts are often detected as Diaspora contacts in the "fcontact" table
1543 // So we try another way as well.
1544 $s = q("SELECT `network` FROM `gcontact` WHERE `nurl`='%s' LIMIT 1", dbesc(normalise_link($r[0]["url"])));
1545 if (DBM::is_result($s)) {
1546 $r[0]["network"] = $s[0]["network"];
1549 if ($r[0]["network"] == NETWORK_DFRN) {
1550 return str_replace("/profile/".$r[0]["nick"]."/", "/display/".$guid, $r[0]["url"]."/");
1553 if (self::isRedmatrix($r[0]["url"])) {
1554 return $r[0]["url"]."/?f=&mid=".$guid;
1557 if ($parent_guid != '') {
1558 return "https://".substr($addr, strpos($addr, "@") + 1) . "/posts/" . $parent_guid . "#" . $guid;
1560 return "https://".substr($addr, strpos($addr, "@") + 1) . "/posts/" . $guid;
1565 * @brief Receives account migration
1567 * @param array $importer Array of the importer user
1568 * @param object $data The message object
1570 * @return bool Success
1572 private static function receiveAccountMigration($importer, $data)
1574 $old_handle = notags(unxmlify($data->author));
1575 $new_handle = notags(unxmlify($data->profile->author));
1576 $signature = notags(unxmlify($data->signature));
1578 $contact = self::contactByHandle($importer["uid"], $old_handle);
1580 logger("cannot find contact for sender: ".$old_handle." and user ".$importer["uid"]);
1584 logger("Got migration for ".$old_handle.", to ".$new_handle." with user ".$importer["uid"]);
1587 $signed_text = 'AccountMigration:'.$old_handle.':'.$new_handle;
1588 $key = self::key($old_handle);
1589 if (!Crypto::rsaVerify($signed_text, $signature, $key, "sha256")) {
1590 logger('No valid signature for migration.');
1594 // Update the profile
1595 self::receiveProfile($importer, $data->profile);
1597 // change the technical stuff in contact and gcontact
1598 $data = Probe::uri($new_handle);
1599 if ($data['network'] == NETWORK_PHANTOM) {
1600 logger('Account for '.$new_handle." couldn't be probed.");
1604 $fields = ['url' => $data['url'], 'nurl' => normalise_link($data['url']),
1605 'name' => $data['name'], 'nick' => $data['nick'],
1606 'addr' => $data['addr'], 'batch' => $data['batch'],
1607 'notify' => $data['notify'], 'poll' => $data['poll'],
1608 'network' => $data['network']];
1610 dba::update('contact', $fields, ['addr' => $old_handle]);
1612 $fields = ['url' => $data['url'], 'nurl' => normalise_link($data['url']),
1613 'name' => $data['name'], 'nick' => $data['nick'],
1614 'addr' => $data['addr'], 'connect' => $data['addr'],
1615 'notify' => $data['notify'], 'photo' => $data['photo'],
1616 'server_url' => $data['baseurl'], 'network' => $data['network']];
1618 dba::update('gcontact', $fields, ['addr' => $old_handle]);
1620 logger('Contacts are updated.');
1623 /// @todo This is an extreme performance killer
1625 'owner-link' => [$contact["url"], $data["url"]],
1626 'author-link' => [$contact["url"], $data["url"]],
1628 foreach ($fields as $n => $f) {
1630 "SELECT `id` FROM `item` WHERE `%s` = '%s' AND `uid` = %d LIMIT 1",
1633 intval($importer["uid"])
1636 if (DBM::is_result($r)) {
1638 "UPDATE `item` SET `%s` = '%s' WHERE `%s` = '%s' AND `uid` = %d",
1643 intval($importer["uid"])
1652 logger('Items are updated.');
1658 * @brief Processes an account deletion
1660 * @param array $importer Array of the importer user
1661 * @param object $data The message object
1663 * @return bool Success
1665 private static function receiveAccountDeletion($importer, $data)
1667 /// @todo Account deletion should remove the contact from the global contacts as well
1669 $author = notags(unxmlify($data->author));
1671 $contact = self::contactByHandle($importer["uid"], $author);
1673 logger("cannot find contact for author: ".$author);
1677 // We now remove the contact
1678 Contact::remove($contact["id"]);
1683 * @brief Fetch the uri from our database if we already have this item (maybe from ourselves)
1685 * @param string $author Author handle
1686 * @param string $guid Message guid
1687 * @param boolean $onlyfound Only return uri when found in the database
1689 * @return string The constructed uri or the one from our database
1691 private static function getUriFromGuid($author, $guid, $onlyfound = false)
1693 $r = q("SELECT `uri` FROM `item` WHERE `guid` = '%s' LIMIT 1", dbesc($guid));
1694 if (DBM::is_result($r)) {
1695 return $r[0]["uri"];
1696 } elseif (!$onlyfound) {
1697 return $author.":".$guid;
1704 * @brief Fetch the guid from our database with a given uri
1706 * @param string $uri Message uri
1707 * @param string $uid Author handle
1709 * @return string The post guid
1711 private static function getGuidFromUri($uri, $uid)
1713 $r = q("SELECT `guid` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1", dbesc($uri), intval($uid));
1714 if (DBM::is_result($r)) {
1715 return $r[0]["guid"];
1722 * @brief Find the best importer for a comment, like, ...
1724 * @param string $guid The guid of the item
1726 * @return array|boolean the origin owner of that post - or false
1728 private static function importerForGuid($guid)
1730 $item = dba::fetch_first("SELECT `uid` FROM `item` WHERE `origin` AND `guid` = ? LIMIT 1", $guid);
1732 if (DBM::is_result($item)) {
1733 logger("Found user ".$item['uid']." as owner of item ".$guid, LOGGER_DEBUG);
1734 $contact = dba::fetch_first("SELECT * FROM `contact` WHERE `self` AND `uid` = ?", $item['uid']);
1735 if (DBM::is_result($contact)) {
1743 * @brief Processes an incoming comment
1745 * @param array $importer Array of the importer user
1746 * @param string $sender The sender of the message
1747 * @param object $data The message object
1748 * @param string $xml The original XML of the message
1750 * @return int The message id of the generated comment or "false" if there was an error
1752 private static function receiveComment($importer, $sender, $data, $xml)
1754 $author = notags(unxmlify($data->author));
1755 $guid = notags(unxmlify($data->guid));
1756 $parent_guid = notags(unxmlify($data->parent_guid));
1757 $text = unxmlify($data->text);
1759 if (isset($data->created_at)) {
1760 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
1762 $created_at = DateTimeFormat::utcNow();
1765 if (isset($data->thread_parent_guid)) {
1766 $thread_parent_guid = notags(unxmlify($data->thread_parent_guid));
1767 $thr_uri = self::getUriFromGuid("", $thread_parent_guid, true);
1772 $contact = self::allowedContactByHandle($importer, $sender, true);
1777 $message_id = self::messageExists($importer["uid"], $guid);
1782 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
1783 if (!$parent_item) {
1787 $person = self::personByHandle($author);
1788 if (!is_array($person)) {
1789 logger("unable to find author details");
1793 // Fetch the contact id - if we know this contact
1794 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
1798 $datarray["uid"] = $importer["uid"];
1799 $datarray["contact-id"] = $author_contact["cid"];
1800 $datarray["network"] = $author_contact["network"];
1802 $datarray["author-name"] = $person["name"];
1803 $datarray["author-link"] = $person["url"];
1804 $datarray["author-avatar"] = ((x($person, "thumb")) ? $person["thumb"] : $person["photo"]);
1806 $datarray["owner-name"] = $contact["name"];
1807 $datarray["owner-link"] = $contact["url"];
1808 $datarray["owner-avatar"] = ((x($contact, "thumb")) ? $contact["thumb"] : $contact["photo"]);
1810 $datarray["guid"] = $guid;
1811 $datarray["uri"] = self::getUriFromGuid($author, $guid);
1813 $datarray["type"] = "remote-comment";
1814 $datarray["verb"] = ACTIVITY_POST;
1815 $datarray["gravity"] = GRAVITY_COMMENT;
1817 if ($thr_uri != "") {
1818 $datarray["parent-uri"] = $thr_uri;
1820 $datarray["parent-uri"] = $parent_item["uri"];
1823 $datarray["object-type"] = ACTIVITY_OBJ_COMMENT;
1825 $datarray["protocol"] = PROTOCOL_DIASPORA;
1826 $datarray["source"] = $xml;
1828 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
1830 $datarray["plink"] = self::plink($author, $guid, $parent_item['guid']);
1832 $body = Markdown::toBBCode($text);
1834 $datarray["body"] = self::replacePeopleGuid($body, $person["url"]);
1836 self::fetchGuid($datarray);
1838 $message_id = Item::insert($datarray);
1840 if ($message_id <= 0) {
1845 logger("Stored comment ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
1848 // If we are the origin of the parent we store the original data and notify our followers
1849 if ($message_id && $parent_item["origin"]) {
1850 // Formerly we stored the signed text, the signature and the author in different fields.
1851 // We now store the raw data so that we are more flexible.
1852 dba::insert('sign', ['iid' => $message_id, 'signed_text' => json_encode($data)]);
1855 Worker::add(PRIORITY_HIGH, "Notifier", "comment-import", $message_id);
1862 * @brief processes and stores private messages
1864 * @param array $importer Array of the importer user
1865 * @param array $contact The contact of the message
1866 * @param object $data The message object
1867 * @param array $msg Array of the processed message, author handle and key
1868 * @param object $mesg The private message
1869 * @param array $conversation The conversation record to which this message belongs
1871 * @return bool "true" if it was successful
1873 private static function receiveConversationMessage($importer, $contact, $data, $msg, $mesg, $conversation)
1875 $author = notags(unxmlify($data->author));
1876 $guid = notags(unxmlify($data->guid));
1877 $subject = notags(unxmlify($data->subject));
1879 // "diaspora_handle" is the element name from the old version
1880 // "author" is the element name from the new version
1881 if ($mesg->author) {
1882 $msg_author = notags(unxmlify($mesg->author));
1883 } elseif ($mesg->diaspora_handle) {
1884 $msg_author = notags(unxmlify($mesg->diaspora_handle));
1889 $msg_guid = notags(unxmlify($mesg->guid));
1890 $msg_conversation_guid = notags(unxmlify($mesg->conversation_guid));
1891 $msg_text = unxmlify($mesg->text);
1892 $msg_created_at = DateTimeFormat::utc(notags(unxmlify($mesg->created_at)));
1894 if ($msg_conversation_guid != $guid) {
1895 logger("message conversation guid does not belong to the current conversation.");
1899 $body = Markdown::toBBCode($msg_text);
1900 $message_uri = $msg_author.":".$msg_guid;
1902 $person = self::personByHandle($msg_author);
1907 "SELECT `id` FROM `mail` WHERE `guid` = '%s' AND `uid` = %d LIMIT 1",
1909 intval($importer["uid"])
1911 if (DBM::is_result($r)) {
1912 logger("duplicate message already delivered.", LOGGER_DEBUG);
1917 "INSERT INTO `mail` (`uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`)
1918 VALUES (%d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
1919 intval($importer["uid"]),
1921 intval($conversation["id"]),
1922 dbesc($person["name"]),
1923 dbesc($person["photo"]),
1924 dbesc($person["url"]),
1925 intval($contact["id"]),
1930 dbesc($message_uri),
1931 dbesc($author.":".$guid),
1932 dbesc($msg_created_at)
1937 dba::update('conv', ['updated' => DateTimeFormat::utcNow()], ['id' => $conversation["id"]]);
1941 "type" => NOTIFY_MAIL,
1942 "notify_flags" => $importer["notify-flags"],
1943 "language" => $importer["language"],
1944 "to_name" => $importer["username"],
1945 "to_email" => $importer["email"],
1946 "uid" =>$importer["uid"],
1947 "item" => ["subject" => $subject, "body" => $body],
1948 "source_name" => $person["name"],
1949 "source_link" => $person["url"],
1950 "source_photo" => $person["thumb"],
1951 "verb" => ACTIVITY_POST,
1958 * @brief Processes new private messages (answers to private messages are processed elsewhere)
1960 * @param array $importer Array of the importer user
1961 * @param array $msg Array of the processed message, author handle and key
1962 * @param object $data The message object
1964 * @return bool Success
1966 private static function receiveConversation($importer, $msg, $data)
1968 $author = notags(unxmlify($data->author));
1969 $guid = notags(unxmlify($data->guid));
1970 $subject = notags(unxmlify($data->subject));
1971 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
1972 $participants = notags(unxmlify($data->participants));
1974 $messages = $data->message;
1976 if (!count($messages)) {
1977 logger("empty conversation");
1981 $contact = self::allowedContactByHandle($importer, $msg["author"], true);
1986 $conversation = null;
1989 "SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1990 intval($importer["uid"]),
1994 $conversation = $c[0];
1997 "INSERT INTO `conv` (`uid`, `guid`, `creator`, `created`, `updated`, `subject`, `recips`)
1998 VALUES (%d, '%s', '%s', '%s', '%s', '%s', '%s')",
1999 intval($importer["uid"]),
2003 dbesc(DateTimeFormat::utcNow()),
2005 dbesc($participants)
2009 "SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
2010 intval($importer["uid"]),
2016 $conversation = $c[0];
2019 if (!$conversation) {
2020 logger("unable to create conversation.");
2024 foreach ($messages as $mesg) {
2025 self::receiveConversationMessage($importer, $contact, $data, $msg, $mesg, $conversation);
2032 * @brief Creates the body for a "like" message
2034 * @param array $contact The contact that send us the "like"
2035 * @param array $parent_item The item array of the parent item
2036 * @param string $guid message guid
2038 * @return string the body
2040 private static function constructLikeBody($contact, $parent_item, $guid)
2042 $bodyverb = L10n::t('%1$s likes %2$s\'s %3$s');
2044 $ulink = "[url=".$contact["url"]."]".$contact["name"]."[/url]";
2045 $alink = "[url=".$parent_item["author-link"]."]".$parent_item["author-name"]."[/url]";
2046 $plink = "[url=".System::baseUrl()."/display/".urlencode($guid)."]".L10n::t("status")."[/url]";
2048 return sprintf($bodyverb, $ulink, $alink, $plink);
2052 * @brief Creates a XML object for a "like"
2054 * @param array $importer Array of the importer user
2055 * @param array $parent_item The item array of the parent item
2057 * @return string The XML
2059 private static function constructLikeObject($importer, $parent_item)
2061 $objtype = ACTIVITY_OBJ_NOTE;
2062 $link = '<link rel="alternate" type="text/html" href="'.System::baseUrl()."/display/".$importer["nickname"]."/".$parent_item["id"].'" />';
2063 $parent_body = $parent_item["body"];
2065 $xmldata = ["object" => ["type" => $objtype,
2067 "id" => $parent_item["uri"],
2070 "content" => $parent_body]];
2072 return XML::fromArray($xmldata, $xml, true);
2076 * @brief Processes "like" messages
2078 * @param array $importer Array of the importer user
2079 * @param string $sender The sender of the message
2080 * @param object $data The message object
2082 * @return int The message id of the generated like or "false" if there was an error
2084 private static function receiveLike($importer, $sender, $data)
2086 $author = notags(unxmlify($data->author));
2087 $guid = notags(unxmlify($data->guid));
2088 $parent_guid = notags(unxmlify($data->parent_guid));
2089 $parent_type = notags(unxmlify($data->parent_type));
2090 $positive = notags(unxmlify($data->positive));
2092 // likes on comments aren't supported by Diaspora - only on posts
2093 // But maybe this will be supported in the future, so we will accept it.
2094 if (!in_array($parent_type, ["Post", "Comment"])) {
2098 $contact = self::allowedContactByHandle($importer, $sender, true);
2103 $message_id = self::messageExists($importer["uid"], $guid);
2108 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
2109 if (!$parent_item) {
2113 $person = self::personByHandle($author);
2114 if (!is_array($person)) {
2115 logger("unable to find author details");
2119 // Fetch the contact id - if we know this contact
2120 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
2122 // "positive" = "false" would be a Dislike - wich isn't currently supported by Diaspora
2123 // We would accept this anyhow.
2124 if ($positive == "true") {
2125 $verb = ACTIVITY_LIKE;
2127 $verb = ACTIVITY_DISLIKE;
2132 $datarray["protocol"] = PROTOCOL_DIASPORA;
2134 $datarray["uid"] = $importer["uid"];
2135 $datarray["contact-id"] = $author_contact["cid"];
2136 $datarray["network"] = $author_contact["network"];
2138 $datarray["author-name"] = $person["name"];
2139 $datarray["author-link"] = $person["url"];
2140 $datarray["author-avatar"] = ((x($person, "thumb")) ? $person["thumb"] : $person["photo"]);
2142 $datarray["owner-name"] = $contact["name"];
2143 $datarray["owner-link"] = $contact["url"];
2144 $datarray["owner-avatar"] = ((x($contact, "thumb")) ? $contact["thumb"] : $contact["photo"]);
2146 $datarray["guid"] = $guid;
2147 $datarray["uri"] = self::getUriFromGuid($author, $guid);
2149 $datarray["type"] = "activity";
2150 $datarray["verb"] = $verb;
2151 $datarray["gravity"] = GRAVITY_LIKE;
2152 $datarray["parent-uri"] = $parent_item["uri"];
2154 $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
2155 $datarray["object"] = self::constructLikeObject($importer, $parent_item);
2157 $datarray["body"] = self::constructLikeBody($contact, $parent_item, $guid);
2159 $message_id = Item::insert($datarray);
2161 if ($message_id <= 0) {
2166 logger("Stored like ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
2169 // like on comments have the comment as parent. So we need to fetch the toplevel parent
2170 if ($parent_item["id"] != $parent_item["parent"]) {
2171 $toplevel = dba::selectFirst('item', ['origin'], ['id' => $parent_item["parent"]]);
2172 $origin = $toplevel["origin"];
2174 $origin = $parent_item["origin"];
2177 // If we are the origin of the parent we store the original data and notify our followers
2178 if ($message_id && $origin) {
2179 // Formerly we stored the signed text, the signature and the author in different fields.
2180 // We now store the raw data so that we are more flexible.
2181 dba::insert('sign', ['iid' => $message_id, 'signed_text' => json_encode($data)]);
2184 Worker::add(PRIORITY_HIGH, "Notifier", "comment-import", $message_id);
2191 * @brief Processes private messages
2193 * @param array $importer Array of the importer user
2194 * @param object $data The message object
2196 * @return bool Success?
2198 private static function receiveMessage($importer, $data)
2200 $author = notags(unxmlify($data->author));
2201 $guid = notags(unxmlify($data->guid));
2202 $conversation_guid = notags(unxmlify($data->conversation_guid));
2203 $text = unxmlify($data->text);
2204 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
2206 $contact = self::allowedContactByHandle($importer, $author, true);
2211 $conversation = null;
2214 "SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
2215 intval($importer["uid"]),
2216 dbesc($conversation_guid)
2219 $conversation = $c[0];
2221 logger("conversation not available.");
2225 $message_uri = $author.":".$guid;
2227 $person = self::personByHandle($author);
2229 logger("unable to find author details");
2233 $body = Markdown::toBBCode($text);
2235 $body = self::replacePeopleGuid($body, $person["url"]);
2240 "SELECT `id` FROM `mail` WHERE `guid` = '%s' AND `uid` = %d LIMIT 1",
2242 intval($importer["uid"])
2244 if (DBM::is_result($r)) {
2245 logger("duplicate message already delivered.", LOGGER_DEBUG);
2250 "INSERT INTO `mail` (`uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`)
2251 VALUES ( %d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
2252 intval($importer["uid"]),
2254 intval($conversation["id"]),
2255 dbesc($person["name"]),
2256 dbesc($person["photo"]),
2257 dbesc($person["url"]),
2258 intval($contact["id"]),
2259 dbesc($conversation["subject"]),
2263 dbesc($message_uri),
2264 dbesc($author.":".$conversation["guid"]),
2270 dba::update('conv', ['updated' => DateTimeFormat::utcNow()], ['id' => $conversation["id"]]);
2275 * @brief Processes participations - unsupported by now
2277 * @param array $importer Array of the importer user
2278 * @param object $data The message object
2280 * @return bool always true
2282 private static function receiveParticipation($importer, $data)
2284 $author = strtolower(notags(unxmlify($data->author)));
2285 $parent_guid = notags(unxmlify($data->parent_guid));
2287 $contact_id = Contact::getIdForURL($author);
2289 logger('Contact not found: '.$author);
2293 $person = self::personByHandle($author);
2294 if (!is_array($person)) {
2295 logger("Person not found: ".$author);
2299 $item = dba::selectFirst('item', ['id'], ['guid' => $parent_guid, 'origin' => true, 'private' => false]);
2300 if (!DBM::is_result($item)) {
2301 logger('Item not found, no origin or private: '.$parent_guid);
2305 $author_parts = explode('@', $author);
2306 if (isset($author_parts[1])) {
2307 $server = $author_parts[1];
2309 // Should never happen
2313 logger('Received participation for ID: '.$item['id'].' - Contact: '.$contact_id.' - Server: '.$server, LOGGER_DEBUG);
2315 if (!dba::exists('participation', ['iid' => $item['id'], 'server' => $server])) {
2316 dba::insert('participation', ['iid' => $item['id'], 'cid' => $contact_id, 'fid' => $person['id'], 'server' => $server]);
2319 // Send all existing comments and likes to the requesting server
2320 $comments = dba::p("SELECT `item`.`id`, `item`.`verb`, `contact`.`self`
2322 INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
2323 WHERE `item`.`parent` = ? AND `item`.`id` != `item`.`parent`", $item['id']);
2324 while ($comment = dba::fetch($comments)) {
2325 if ($comment['verb'] == ACTIVITY_POST) {
2326 $cmd = $comment['self'] ? 'comment-new' : 'comment-import';
2328 $cmd = $comment['self'] ? 'like' : 'comment-import';
2330 logger("Send ".$cmd." for item ".$comment['id']." to contact ".$contact_id, LOGGER_DEBUG);
2331 Worker::add(PRIORITY_HIGH, 'Delivery', $cmd, $comment['id'], $contact_id);
2333 dba::close($comments);
2339 * @brief Processes photos - unneeded
2341 * @param array $importer Array of the importer user
2342 * @param object $data The message object
2344 * @return bool always true
2346 private static function receivePhoto($importer, $data)
2348 // There doesn't seem to be a reason for this function,
2349 // since the photo data is transmitted in the status message as well
2354 * @brief Processes poll participations - unssupported
2356 * @param array $importer Array of the importer user
2357 * @param object $data The message object
2359 * @return bool always true
2361 private static function receivePollParticipation($importer, $data)
2363 // We don't support polls by now
2368 * @brief Processes incoming profile updates
2370 * @param array $importer Array of the importer user
2371 * @param object $data The message object
2373 * @return bool Success
2375 private static function receiveProfile($importer, $data)
2377 $author = strtolower(notags(unxmlify($data->author)));
2379 $contact = self::contactByHandle($importer["uid"], $author);
2384 $name = unxmlify($data->first_name).((strlen($data->last_name)) ? " ".unxmlify($data->last_name) : "");
2385 $image_url = unxmlify($data->image_url);
2386 $birthday = unxmlify($data->birthday);
2387 $gender = unxmlify($data->gender);
2388 $about = Markdown::toBBCode(unxmlify($data->bio));
2389 $location = Markdown::toBBCode(unxmlify($data->location));
2390 $searchable = (unxmlify($data->searchable) == "true");
2391 $nsfw = (unxmlify($data->nsfw) == "true");
2392 $tags = unxmlify($data->tag_string);
2394 $tags = explode("#", $tags);
2397 foreach ($tags as $tag) {
2398 $tag = trim(strtolower($tag));
2404 $keywords = implode(", ", $keywords);
2406 $handle_parts = explode("@", $author);
2407 $nick = $handle_parts[0];
2410 $name = $handle_parts[0];
2413 if (preg_match("|^https?://|", $image_url) === 0) {
2414 $image_url = "http://".$handle_parts[1].$image_url;
2417 Contact::updateAvatar($image_url, $importer["uid"], $contact["id"]);
2419 // Generic birthday. We don't know the timezone. The year is irrelevant.
2421 $birthday = str_replace("1000", "1901", $birthday);
2423 if ($birthday != "") {
2424 $birthday = DateTimeFormat::utc($birthday, "Y-m-d");
2427 // this is to prevent multiple birthday notifications in a single year
2428 // if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
2430 if (substr($birthday, 5) === substr($contact["bd"], 5)) {
2431 $birthday = $contact["bd"];
2435 "UPDATE `contact` SET `name` = '%s', `nick` = '%s', `addr` = '%s', `name-date` = '%s', `bd` = '%s',
2436 `location` = '%s', `about` = '%s', `keywords` = '%s', `gender` = '%s' WHERE `id` = %d AND `uid` = %d",
2440 dbesc(DateTimeFormat::utcNow()),
2446 intval($contact["id"]),
2447 intval($importer["uid"])
2450 $gcontact = ["url" => $contact["url"], "network" => NETWORK_DIASPORA, "generation" => 2,
2451 "photo" => $image_url, "name" => $name, "location" => $location,
2452 "about" => $about, "birthday" => $birthday, "gender" => $gender,
2453 "addr" => $author, "nick" => $nick, "keywords" => $keywords,
2454 "hide" => !$searchable, "nsfw" => $nsfw];
2456 $gcid = GContact::update($gcontact);
2458 GContact::link($gcid, $importer["uid"], $contact["id"]);
2460 logger("Profile of contact ".$contact["id"]." stored for user ".$importer["uid"], LOGGER_DEBUG);
2466 * @brief Processes incoming friend requests
2468 * @param array $importer Array of the importer user
2469 * @param array $contact The contact that send the request
2472 private static function receiveRequestMakeFriend($importer, $contact)
2476 if ($contact["rel"] == CONTACT_IS_SHARING) {
2479 ['rel' => CONTACT_IS_FRIEND, 'writable' => true],
2480 ['id' => $contact["id"], 'uid' => $importer["uid"]]
2483 // send notification
2486 "SELECT `hide-friends` FROM `profile` WHERE `uid` = %d AND `is-default` = 1 LIMIT 1",
2487 intval($importer["uid"])
2490 if ($r && !$r[0]["hide-friends"] && !$contact["hidden"] && intval(PConfig::get($importer["uid"], "system", "post_newfriend"))) {
2492 "SELECT * FROM `contact` WHERE `self` AND `uid` = %d LIMIT 1",
2493 intval($importer["uid"])
2496 // they are not CONTACT_IS_FOLLOWER anymore but that's what we have in the array
2498 if ($self && $contact["rel"] == CONTACT_IS_FOLLOWER) {
2500 $arr["protocol"] = PROTOCOL_DIASPORA;
2501 $arr["uri"] = $arr["parent-uri"] = item_new_uri($a->get_hostname(), $importer["uid"]);
2502 $arr["uid"] = $importer["uid"];
2503 $arr["contact-id"] = $self[0]["id"];
2505 $arr["type"] = 'wall';
2506 $arr["gravity"] = 0;
2508 $arr["author-name"] = $arr["owner-name"] = $self[0]["name"];
2509 $arr["author-link"] = $arr["owner-link"] = $self[0]["url"];
2510 $arr["author-avatar"] = $arr["owner-avatar"] = $self[0]["thumb"];
2511 $arr["verb"] = ACTIVITY_FRIEND;
2512 $arr["object-type"] = ACTIVITY_OBJ_PERSON;
2514 $A = "[url=".$self[0]["url"]."]".$self[0]["name"]."[/url]";
2515 $B = "[url=".$contact["url"]."]".$contact["name"]."[/url]";
2516 $BPhoto = "[url=".$contact["url"]."][img]".$contact["thumb"]."[/img][/url]";
2517 $arr["body"] = L10n::t('%1$s is now friends with %2$s', $A, $B)."\n\n\n".$BPhoto;
2519 $arr["object"] = self::constructNewFriendObject($contact);
2521 $user = dba::selectFirst('user', ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'], ['uid' => $importer["uid"]]);
2523 $arr["allow_cid"] = $user["allow_cid"];
2524 $arr["allow_gid"] = $user["allow_gid"];
2525 $arr["deny_cid"] = $user["deny_cid"];
2526 $arr["deny_gid"] = $user["deny_gid"];
2528 $i = Item::insert($arr);
2530 Worker::add(PRIORITY_HIGH, "Notifier", "activity", $i);
2537 * @brief Creates a XML object for a "new friend" message
2539 * @param array $contact Array of the contact
2541 * @return string The XML
2543 private static function constructNewFriendObject($contact)
2545 $objtype = ACTIVITY_OBJ_PERSON;
2546 $link = '<link rel="alternate" type="text/html" href="'.$contact["url"].'" />'."\n".
2547 '<link rel="photo" type="image/jpeg" href="'.$contact["thumb"].'" />'."\n";
2549 $xmldata = ["object" => ["type" => $objtype,
2550 "title" => $contact["name"],
2551 "id" => $contact["url"]."/".$contact["name"],
2554 return XML::fromArray($xmldata, $xml, true);
2558 * @brief Processes incoming sharing notification
2560 * @param array $importer Array of the importer user
2561 * @param object $data The message object
2563 * @return bool Success
2565 private static function receiveContactRequest($importer, $data)
2567 $author = unxmlify($data->author);
2568 $recipient = unxmlify($data->recipient);
2570 if (!$author || !$recipient) {
2574 // the current protocol version doesn't know these fields
2575 // That means that we will assume their existance
2576 if (isset($data->following)) {
2577 $following = (unxmlify($data->following) == "true");
2582 if (isset($data->sharing)) {
2583 $sharing = (unxmlify($data->sharing) == "true");
2588 $contact = self::contactByHandle($importer["uid"], $author);
2590 // perhaps we were already sharing with this person. Now they're sharing with us.
2591 // That makes us friends.
2594 logger("Author ".$author." (Contact ".$contact["id"].") wants to follow us.", LOGGER_DEBUG);
2595 self::receiveRequestMakeFriend($importer, $contact);
2597 // refetch the contact array
2598 $contact = self::contactByHandle($importer["uid"], $author);
2600 // If we are now friends, we are sending a share message.
2601 // Normally we needn't to do so, but the first message could have been vanished.
2602 if (in_array($contact["rel"], [CONTACT_IS_FRIEND])) {
2603 $u = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($importer["uid"]));
2605 logger("Sending share message to author ".$author." - Contact: ".$contact["id"]." - User: ".$importer["uid"], LOGGER_DEBUG);
2606 $ret = self::sendShare($u[0], $contact);
2611 logger("Author ".$author." doesn't want to follow us anymore.", LOGGER_DEBUG);
2612 Contact::removeFollower($importer, $contact);
2617 if (!$following && $sharing && in_array($importer["page-flags"], [PAGE_SOAPBOX, PAGE_NORMAL])) {
2618 logger("Author ".$author." wants to share with us - but doesn't want to listen. Request is ignored.", LOGGER_DEBUG);
2620 } elseif (!$following && !$sharing) {
2621 logger("Author ".$author." doesn't want anything - and we don't know the author. Request is ignored.", LOGGER_DEBUG);
2623 } elseif (!$following && $sharing) {
2624 logger("Author ".$author." wants to share with us.", LOGGER_DEBUG);
2625 } elseif ($following && $sharing) {
2626 logger("Author ".$author." wants to have a bidirectional conection.", LOGGER_DEBUG);
2627 } elseif ($following && !$sharing) {
2628 logger("Author ".$author." wants to listen to us.", LOGGER_DEBUG);
2631 $ret = self::personByHandle($author);
2633 if (!$ret || ($ret["network"] != NETWORK_DIASPORA)) {
2634 logger("Cannot resolve diaspora handle ".$author." for ".$recipient);
2638 $batch = (($ret["batch"]) ? $ret["batch"] : implode("/", array_slice(explode("/", $ret["url"]), 0, 3))."/receive/public");
2641 "INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`nurl`,`batch`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
2642 VALUES (%d, '%s', '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s','%s',%d,%d)",
2643 intval($importer["uid"]),
2644 dbesc($ret["network"]),
2645 dbesc($ret["addr"]),
2646 DateTimeFormat::utcNow(),
2648 dbesc(normalise_link($ret["url"])),
2650 dbesc($ret["name"]),
2651 dbesc($ret["nick"]),
2652 dbesc($ret["photo"]),
2653 dbesc($ret["pubkey"]),
2654 dbesc($ret["notify"]),
2655 dbesc($ret["poll"]),
2660 // find the contact record we just created
2662 $contact_record = self::contactByHandle($importer["uid"], $author);
2664 if (!$contact_record) {
2665 logger("unable to locate newly created contact record.");
2669 logger("Author ".$author." was added as contact number ".$contact_record["id"].".", LOGGER_DEBUG);
2671 Group::addMember(User::getDefaultGroup($importer['uid'], $ret["network"]), $contact_record['id']);
2673 Contact::updateAvatar($ret["photo"], $importer['uid'], $contact_record["id"], true);
2675 if ($importer["page-flags"] == PAGE_NORMAL) {
2676 logger("Sending intra message for author ".$author.".", LOGGER_DEBUG);
2678 $hash = random_string().(string)time(); // Generate a confirm_key
2681 "INSERT INTO `intro` (`uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime`)
2682 VALUES (%d, %d, %d, %d, '%s', '%s', '%s')",
2683 intval($importer["uid"]),
2684 intval($contact_record["id"]),
2687 dbesc(L10n::t("Sharing notification from Diaspora network")),
2689 dbesc(DateTimeFormat::utcNow())
2692 // automatic friend approval
2694 logger("Does an automatic friend approval for author ".$author.".", LOGGER_DEBUG);
2696 Contact::updateAvatar($contact_record["photo"], $importer["uid"], $contact_record["id"]);
2698 // technically they are sharing with us (CONTACT_IS_SHARING),
2699 // but if our page-type is PAGE_COMMUNITY or PAGE_SOAPBOX
2700 // we are going to change the relationship and make them a follower.
2702 if (($importer["page-flags"] == PAGE_FREELOVE) && $sharing && $following) {
2703 $new_relation = CONTACT_IS_FRIEND;
2704 } elseif (($importer["page-flags"] == PAGE_FREELOVE) && $sharing) {
2705 $new_relation = CONTACT_IS_SHARING;
2707 $new_relation = CONTACT_IS_FOLLOWER;
2711 "UPDATE `contact` SET `rel` = %d,
2719 intval($new_relation),
2720 dbesc(DateTimeFormat::utcNow()),
2721 dbesc(DateTimeFormat::utcNow()),
2722 intval($contact_record["id"])
2725 $u = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($importer["uid"]));
2727 logger("Sending share message (Relation: ".$new_relation.") to author ".$author." - Contact: ".$contact_record["id"]." - User: ".$importer["uid"], LOGGER_DEBUG);
2728 $ret = self::sendShare($u[0], $contact_record);
2730 // Send the profile data, maybe it weren't transmitted before
2731 self::sendProfile($importer["uid"], [$contact_record]);
2739 * @brief Fetches a message with a given guid
2741 * @param string $guid message guid
2742 * @param string $orig_author handle of the original post
2743 * @param string $author handle of the sharer
2745 * @return array The fetched item
2747 public static function originalItem($guid, $orig_author)
2749 // Do we already have this item?
2751 "SELECT `body`, `tag`, `app`, `created`, `object-type`, `uri`, `guid`,
2752 `author-name`, `author-link`, `author-avatar`
2753 FROM `item` WHERE `guid` = '%s' AND `visible` AND NOT `deleted` AND `body` != '' LIMIT 1",
2757 if (DBM::is_result($r)) {
2758 logger("reshared message ".$guid." already exists on system.");
2760 // Maybe it is already a reshared item?
2761 // Then refetch the content, if it is a reshare from a reshare.
2762 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2763 if (self::isReshare($r[0]["body"], true)) {
2765 } elseif (self::isReshare($r[0]["body"], false) || strstr($r[0]["body"], "[share")) {
2766 $r[0]["body"] = Markdown::toBBCode(BBCode::toMarkdown($r[0]["body"]));
2768 $r[0]["body"] = self::replacePeopleGuid($r[0]["body"], $r[0]["author-link"]);
2770 // Add OEmbed and other information to the body
2771 $r[0]["body"] = add_page_info_to_body($r[0]["body"], false, true);
2779 if (!DBM::is_result($r)) {
2780 $server = "https://".substr($orig_author, strpos($orig_author, "@") + 1);
2781 logger("1st try: reshared message ".$guid." will be fetched via SSL from the server ".$server);
2782 $item_id = self::storeByGuid($guid, $server);
2785 $server = "http://".substr($orig_author, strpos($orig_author, "@") + 1);
2786 logger("2nd try: reshared message ".$guid." will be fetched without SLL from the server ".$server);
2787 $item_id = self::storeByGuid($guid, $server);
2792 "SELECT `body`, `tag`, `app`, `created`, `object-type`, `uri`, `guid`,
2793 `author-name`, `author-link`, `author-avatar`
2794 FROM `item` WHERE `id` = %d AND `visible` AND NOT `deleted` AND `body` != '' LIMIT 1",
2798 if (DBM::is_result($r)) {
2799 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2800 if (self::isReshare($r[0]["body"], false)) {
2801 $r[0]["body"] = Markdown::toBBCode(BBCode::toMarkdown($r[0]["body"]));
2802 $r[0]["body"] = self::replacePeopleGuid($r[0]["body"], $r[0]["author-link"]);
2813 * @brief Processes a reshare message
2815 * @param array $importer Array of the importer user
2816 * @param object $data The message object
2817 * @param string $xml The original XML of the message
2819 * @return int the message id
2821 private static function receiveReshare($importer, $data, $xml)
2823 $author = notags(unxmlify($data->author));
2824 $guid = notags(unxmlify($data->guid));
2825 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
2826 $root_author = notags(unxmlify($data->root_author));
2827 $root_guid = notags(unxmlify($data->root_guid));
2828 /// @todo handle unprocessed property "provider_display_name"
2829 $public = notags(unxmlify($data->public));
2831 $contact = self::allowedContactByHandle($importer, $author, false);
2836 $message_id = self::messageExists($importer["uid"], $guid);
2841 $original_item = self::originalItem($root_guid, $root_author);
2842 if (!$original_item) {
2846 $orig_url = System::baseUrl()."/display/".$original_item["guid"];
2850 $datarray["uid"] = $importer["uid"];
2851 $datarray["contact-id"] = $contact["id"];
2852 $datarray["network"] = NETWORK_DIASPORA;
2854 $datarray["author-name"] = $contact["name"];
2855 $datarray["author-link"] = $contact["url"];
2856 $datarray["author-avatar"] = ((x($contact, "thumb")) ? $contact["thumb"] : $contact["photo"]);
2858 $datarray["owner-name"] = $datarray["author-name"];
2859 $datarray["owner-link"] = $datarray["author-link"];
2860 $datarray["owner-avatar"] = $datarray["author-avatar"];
2862 $datarray["guid"] = $guid;
2863 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
2865 $datarray["verb"] = ACTIVITY_POST;
2866 $datarray["gravity"] = GRAVITY_PARENT;
2868 $datarray["protocol"] = PROTOCOL_DIASPORA;
2869 $datarray["source"] = $xml;
2871 $prefix = share_header(
2872 $original_item["author-name"],
2873 $original_item["author-link"],
2874 $original_item["author-avatar"],
2875 $original_item["guid"],
2876 $original_item["created"],
2879 $datarray["body"] = $prefix.$original_item["body"]."[/share]";
2881 $datarray["tag"] = $original_item["tag"];
2882 $datarray["app"] = $original_item["app"];
2884 $datarray["plink"] = self::plink($author, $guid);
2885 $datarray["private"] = (($public == "false") ? 1 : 0);
2886 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
2888 $datarray["object-type"] = $original_item["object-type"];
2890 self::fetchGuid($datarray);
2891 $message_id = Item::insert($datarray);
2893 self::sendParticipation($contact, $datarray);
2896 logger("Stored reshare ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
2904 * @brief Processes retractions
2906 * @param array $importer Array of the importer user
2907 * @param array $contact The contact of the item owner
2908 * @param object $data The message object
2910 * @return bool success
2912 private static function itemRetraction($importer, $contact, $data)
2914 $author = notags(unxmlify($data->author));
2915 $target_guid = notags(unxmlify($data->target_guid));
2916 $target_type = notags(unxmlify($data->target_type));
2918 $person = self::personByHandle($author);
2919 if (!is_array($person)) {
2920 logger("unable to find author detail for ".$author);
2924 if (empty($contact["url"])) {
2925 $contact["url"] = $person["url"];
2928 // Fetch items that are about to be deleted
2929 $fields = ['uid', 'id', 'parent', 'parent-uri', 'author-link'];
2931 // When we receive a public retraction, we delete every item that we find.
2932 if ($importer['uid'] == 0) {
2933 $condition = ["`guid` = ? AND NOT `file` LIKE '%%[%%' AND NOT `deleted`", $target_guid];
2935 $condition = ["`guid` = ? AND `uid` = ? AND NOT `file` LIKE '%%[%%' AND NOT `deleted`", $target_guid, $importer['uid']];
2937 $r = dba::select('item', $fields, $condition);
2938 if (!DBM::is_result($r)) {
2939 logger("Target guid ".$target_guid." was not found on this system for user ".$importer['uid'].".");
2943 while ($item = dba::fetch($r)) {
2944 // Fetch the parent item
2945 $parent = dba::selectFirst('item', ['author-link', 'origin'], ['id' => $item["parent"]]);
2947 // Only delete it if the parent author really fits
2948 if (!link_compare($parent["author-link"], $contact["url"]) && !link_compare($item["author-link"], $contact["url"])) {
2949 logger("Thread author ".$parent["author-link"]." and item author ".$item["author-link"]." don't fit to expected contact ".$contact["url"], LOGGER_DEBUG);
2953 Item::deleteById($item["id"]);
2955 logger("Deleted target ".$target_guid." (".$item["id"].") from user ".$item["uid"]." parent: ".$item["parent"], LOGGER_DEBUG);
2957 // Now check if the retraction needs to be relayed by us
2958 if ($parent["origin"]) {
2960 Worker::add(PRIORITY_HIGH, "Notifier", "drop", $item["id"]);
2968 * @brief Receives retraction messages
2970 * @param array $importer Array of the importer user
2971 * @param string $sender The sender of the message
2972 * @param object $data The message object
2974 * @return bool Success
2976 private static function receiveRetraction($importer, $sender, $data)
2978 $target_type = notags(unxmlify($data->target_type));
2980 $contact = self::contactByHandle($importer["uid"], $sender);
2981 if (!$contact && (in_array($target_type, ["Contact", "Person"]))) {
2982 logger("cannot find contact for sender: ".$sender." and user ".$importer["uid"]);
2986 logger("Got retraction for ".$target_type.", sender ".$sender." and user ".$importer["uid"], LOGGER_DEBUG);
2988 switch ($target_type) {
2993 case "StatusMessage":
2994 return self::itemRetraction($importer, $contact, $data);
2998 /// @todo What should we do with an "unshare"?
2999 // Removing the contact isn't correct since we still can read the public items
3000 Contact::remove($contact["id"]);
3004 logger("Unknown target type ".$target_type);
3011 * @brief Receives status messages
3013 * @param array $importer Array of the importer user
3014 * @param object $data The message object
3015 * @param string $xml The original XML of the message
3017 * @return int The message id of the newly created item
3019 private static function receiveStatusMessage($importer, $data, $xml)
3021 $author = notags(unxmlify($data->author));
3022 $guid = notags(unxmlify($data->guid));
3023 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
3024 $public = notags(unxmlify($data->public));
3025 $text = unxmlify($data->text);
3026 $provider_display_name = notags(unxmlify($data->provider_display_name));
3028 $contact = self::allowedContactByHandle($importer, $author, false);
3033 $message_id = self::messageExists($importer["uid"], $guid);
3039 if ($data->location) {
3040 foreach ($data->location->children() as $fieldname => $data) {
3041 $address[$fieldname] = notags(unxmlify($data));
3045 $body = Markdown::toBBCode($text);
3049 // Attach embedded pictures to the body
3051 foreach ($data->photo as $photo) {
3052 $body = "[img]".unxmlify($photo->remote_photo_path).
3053 unxmlify($photo->remote_photo_name)."[/img]\n".$body;
3056 $datarray["object-type"] = ACTIVITY_OBJ_IMAGE;
3058 $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
3060 // Add OEmbed and other information to the body
3061 if (!self::isRedmatrix($contact["url"])) {
3062 $body = add_page_info_to_body($body, false, true);
3066 /// @todo enable support for polls
3067 //if ($data->poll) {
3068 // foreach ($data->poll AS $poll)
3073 /// @todo enable support for events
3075 $datarray["uid"] = $importer["uid"];
3076 $datarray["contact-id"] = $contact["id"];
3077 $datarray["network"] = NETWORK_DIASPORA;
3079 $datarray["author-name"] = $contact["name"];
3080 $datarray["author-link"] = $contact["url"];
3081 $datarray["author-avatar"] = ((x($contact, "thumb")) ? $contact["thumb"] : $contact["photo"]);
3083 $datarray["owner-name"] = $datarray["author-name"];
3084 $datarray["owner-link"] = $datarray["author-link"];
3085 $datarray["owner-avatar"] = $datarray["author-avatar"];
3087 $datarray["guid"] = $guid;
3088 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
3090 $datarray["verb"] = ACTIVITY_POST;
3091 $datarray["gravity"] = GRAVITY_PARENT;
3093 $datarray["protocol"] = PROTOCOL_DIASPORA;
3094 $datarray["source"] = $xml;
3096 $datarray["body"] = self::replacePeopleGuid($body, $contact["url"]);
3098 if ($provider_display_name != "") {
3099 $datarray["app"] = $provider_display_name;
3102 $datarray["plink"] = self::plink($author, $guid);
3103 $datarray["private"] = (($public == "false") ? 1 : 0);
3104 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
3106 if (isset($address["address"])) {
3107 $datarray["location"] = $address["address"];
3110 if (isset($address["lat"]) && isset($address["lng"])) {
3111 $datarray["coord"] = $address["lat"]." ".$address["lng"];
3114 self::fetchGuid($datarray);
3115 $message_id = Item::insert($datarray);
3117 self::sendParticipation($contact, $datarray);
3120 logger("Stored item ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
3127 /* ************************************************************************************** *
3128 * Here are all the functions that are needed to transmit data with the Diaspora protocol *
3129 * ************************************************************************************** */
3132 * @brief returnes the handle of a contact
3134 * @param array $contact contact array
3136 * @return string the handle in the format user@domain.tld
3138 private static function myHandle($contact)
3140 if ($contact["addr"] != "") {
3141 return $contact["addr"];
3144 // Normally we should have a filled "addr" field - but in the past this wasn't the case
3145 // So - just in case - we build the the address here.
3146 if ($contact["nickname"] != "") {
3147 $nick = $contact["nickname"];
3149 $nick = $contact["nick"];
3152 return $nick."@".substr(System::baseUrl(), strpos(System::baseUrl(), "://") + 3);
3157 * @brief Creates the data for a private message in the new format
3159 * @param string $msg The message that is to be transmitted
3160 * @param array $user The record of the sender
3161 * @param array $contact Target of the communication
3162 * @param string $prvkey The private key of the sender
3163 * @param string $pubkey The public key of the receiver
3165 * @return string The encrypted data
3167 public static function encodePrivateData($msg, $user, $contact, $prvkey, $pubkey)
3169 logger("Message: ".$msg, LOGGER_DATA);
3171 // without a public key nothing will work
3173 logger("pubkey missing: contact id: ".$contact["id"]);
3177 $aes_key = openssl_random_pseudo_bytes(32);
3178 $b_aes_key = base64_encode($aes_key);
3179 $iv = openssl_random_pseudo_bytes(16);
3180 $b_iv = base64_encode($iv);
3182 $ciphertext = self::aesEncrypt($aes_key, $iv, $msg);
3184 $json = json_encode(["iv" => $b_iv, "key" => $b_aes_key]);
3186 $encrypted_key_bundle = "";
3187 openssl_public_encrypt($json, $encrypted_key_bundle, $pubkey);
3189 $json_object = json_encode(
3190 ["aes_key" => base64_encode($encrypted_key_bundle),
3191 "encrypted_magic_envelope" => base64_encode($ciphertext)]
3194 return $json_object;
3198 * @brief Creates the envelope for the "fetch" endpoint and for the new format
3200 * @param string $msg The message that is to be transmitted
3201 * @param array $user The record of the sender
3203 * @return string The envelope
3205 public static function buildMagicEnvelope($msg, $user)
3207 $b64url_data = base64url_encode($msg);
3208 $data = str_replace(["\n", "\r", " ", "\t"], ["", "", "", ""], $b64url_data);
3210 $key_id = base64url_encode(self::myHandle($user));
3211 $type = "application/xml";
3212 $encoding = "base64url";
3213 $alg = "RSA-SHA256";
3214 $signable_data = $data.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
3216 // Fallback if the private key wasn't transmitted in the expected field
3217 if ($user['uprvkey'] == "") {
3218 $user['uprvkey'] = $user['prvkey'];
3221 $signature = Crypto::rsaSign($signable_data, $user["uprvkey"]);
3222 $sig = base64url_encode($signature);
3224 $xmldata = ["me:env" => ["me:data" => $data,
3225 "@attributes" => ["type" => $type],
3226 "me:encoding" => $encoding,
3229 "@attributes2" => ["key_id" => $key_id]]];
3231 $namespaces = ["me" => "http://salmon-protocol.org/ns/magic-env"];
3233 return XML::fromArray($xmldata, $xml, false, $namespaces);
3237 * @brief Create the envelope for a message
3239 * @param string $msg The message that is to be transmitted
3240 * @param array $user The record of the sender
3241 * @param array $contact Target of the communication
3242 * @param string $prvkey The private key of the sender
3243 * @param string $pubkey The public key of the receiver
3244 * @param bool $public Is the message public?
3246 * @return string The message that will be transmitted to other servers
3248 public static function buildMessage($msg, $user, $contact, $prvkey, $pubkey, $public = false)
3250 // The message is put into an envelope with the sender's signature
3251 $envelope = self::buildMagicEnvelope($msg, $user);
3253 // Private messages are put into a second envelope, encrypted with the receivers public key
3255 $envelope = self::encodePrivateData($envelope, $user, $contact, $prvkey, $pubkey);
3262 * @brief Creates a signature for a message
3264 * @param array $owner the array of the owner of the message
3265 * @param array $message The message that is to be signed
3267 * @return string The signature
3269 private static function signature($owner, $message)
3272 unset($sigmsg["author_signature"]);
3273 unset($sigmsg["parent_author_signature"]);
3275 $signed_text = implode(";", $sigmsg);
3277 return base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3281 * @brief Transmit a message to a target server
3283 * @param array $owner the array of the item owner
3284 * @param array $contact Target of the communication
3285 * @param string $envelope The message that is to be transmitted
3286 * @param bool $public_batch Is it a public post?
3287 * @param bool $queue_run Is the transmission called from the queue?
3288 * @param string $guid message guid
3290 * @return int Result of the transmission
3292 public static function transmit($owner, $contact, $envelope, $public_batch, $queue_run = false, $guid = "", $no_queue = false)
3296 $enabled = intval(Config::get("system", "diaspora_enabled"));
3301 $logid = random_string(4);
3303 $dest_url = ($public_batch ? $contact["batch"] : $contact["notify"]);
3305 // We always try to use the data from the fcontact table.
3306 // This is important for transmitting data to Friendica servers.
3307 if (!empty($contact['addr'])) {
3308 $fcontact = self::personByHandle($contact['addr']);
3309 if (!empty($fcontact)) {
3310 $dest_url = ($public_batch ? $fcontact["batch"] : $fcontact["notify"]);
3315 logger("no url for contact: ".$contact["id"]." batch mode =".$public_batch);
3319 logger("transmit: ".$logid."-".$guid." ".$dest_url);
3321 if (!$queue_run && Queue::wasDelayed($contact["id"])) {
3324 if (!intval(Config::get("system", "diaspora_test"))) {
3325 $content_type = (($public_batch) ? "application/magic-envelope+xml" : "application/json");
3327 Network::post($dest_url."/", $envelope, ["Content-Type: ".$content_type]);
3328 $return_code = $a->get_curl_code();
3330 logger("test_mode");
3335 logger("transmit: ".$logid."-".$guid." to ".$dest_url." returns: ".$return_code);
3337 if (!$return_code || (($return_code == 503) && (stristr($a->get_curl_headers(), "retry-after")))) {
3338 if (!$no_queue && ($contact['contact-type'] != ACCOUNT_TYPE_RELAY)) {
3339 logger("queue message");
3340 // queue message for redelivery
3341 Queue::add($contact["id"], NETWORK_DIASPORA, $envelope, $public_batch, $guid);
3344 // The message could not be delivered. We mark the contact as "dead"
3345 Contact::markForArchival($contact);
3346 } elseif (($return_code >= 200) && ($return_code <= 299)) {
3347 // We successfully delivered a message, the contact is alive
3348 Contact::unmarkForArchival($contact);
3351 return $return_code ? $return_code : -1;
3356 * @brief Build the post xml
3358 * @param string $type The message type
3359 * @param array $message The message data
3361 * @return string The post XML
3363 public static function buildPostXml($type, $message)
3365 $data = [$type => $message];
3367 return XML::fromArray($data, $xml);
3371 * @brief Builds and transmit messages
3373 * @param array $owner the array of the item owner
3374 * @param array $contact Target of the communication
3375 * @param string $type The message type
3376 * @param array $message The message data
3377 * @param bool $public_batch Is it a public post?
3378 * @param string $guid message guid
3379 * @param bool $spool Should the transmission be spooled or transmitted?
3381 * @return int Result of the transmission
3383 private static function buildAndTransmit($owner, $contact, $type, $message, $public_batch = false, $guid = "", $spool = false)
3385 $msg = self::buildPostXml($type, $message);
3387 logger('message: '.$msg, LOGGER_DATA);
3388 logger('send guid '.$guid, LOGGER_DEBUG);
3390 // Fallback if the private key wasn't transmitted in the expected field
3391 if ($owner['uprvkey'] == "") {
3392 $owner['uprvkey'] = $owner['prvkey'];
3395 $envelope = self::buildMessage($msg, $owner, $contact, $owner['uprvkey'], $contact['pubkey'], $public_batch);
3398 Queue::add($contact['id'], NETWORK_DIASPORA, $envelope, $public_batch, $guid);
3401 $return_code = self::transmit($owner, $contact, $envelope, $public_batch, false, $guid);
3404 logger("guid: ".$guid." result ".$return_code, LOGGER_DEBUG);
3406 return $return_code;
3410 * @brief sends a participation (Used to get all further updates)
3412 * @param array $contact Target of the communication
3413 * @param array $item Item array
3415 * @return int The result of the transmission
3417 private static function sendParticipation($contact, $item)
3419 // Don't send notifications for private postings
3420 if ($item['private']) {
3424 $cachekey = "diaspora:sendParticipation:".$item['guid'];
3426 $result = Cache::get($cachekey);
3427 if (!is_null($result)) {
3431 // Fetch some user id to have a valid handle to transmit the participation.
3432 // In fact it doesn't matter which user sends this - but it is needed by the protocol.
3433 // If the item belongs to a user, we take this user id.
3434 if ($item['uid'] == 0) {
3435 $condition = ['verified' => true, 'blocked' => false, 'account_removed' => false, 'account_expired' => false];
3436 $first_user = dba::selectFirst('user', ['uid'], $condition);
3437 $owner = User::getOwnerDataById($first_user['uid']);
3439 $owner = User::getOwnerDataById($item['uid']);
3442 $author = self::myHandle($owner);
3444 $message = ["author" => $author,
3445 "guid" => get_guid(32),
3446 "parent_type" => "Post",
3447 "parent_guid" => $item["guid"]];
3449 logger("Send participation for ".$item["guid"]." by ".$author, LOGGER_DEBUG);
3451 // It doesn't matter what we store, we only want to avoid sending repeated notifications for the same item
3452 Cache::set($cachekey, $item["guid"], CACHE_QUARTER_HOUR);
3454 return self::buildAndTransmit($owner, $contact, "participation", $message);
3458 * @brief sends an account migration
3460 * @param array $owner the array of the item owner
3461 * @param array $contact Target of the communication
3462 * @param int $uid User ID
3464 * @return int The result of the transmission
3466 public static function sendAccountMigration($owner, $contact, $uid)
3468 $old_handle = PConfig::get($uid, 'system', 'previous_addr');
3469 $profile = self::createProfileData($uid);
3471 $signed_text = 'AccountMigration:'.$old_handle.':'.$profile['author'];
3472 $signature = base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3474 $message = ["author" => $old_handle,
3475 "profile" => $profile,
3476 "signature" => $signature];
3478 logger("Send account migration ".print_r($message, true), LOGGER_DEBUG);
3480 return self::buildAndTransmit($owner, $contact, "account_migration", $message);
3484 * @brief Sends a "share" message
3486 * @param array $owner the array of the item owner
3487 * @param array $contact Target of the communication
3489 * @return int The result of the transmission
3491 public static function sendShare($owner, $contact)
3494 * @todo support the different possible combinations of "following" and "sharing"
3495 * Currently, Diaspora only interprets the "sharing" field
3497 * Before switching this code productive, we have to check all "sendShare" calls if "rel" is set correctly
3501 switch ($contact["rel"]) {
3502 case CONTACT_IS_FRIEND:
3505 case CONTACT_IS_SHARING:
3508 case CONTACT_IS_FOLLOWER:
3514 $message = ["author" => self::myHandle($owner),
3515 "recipient" => $contact["addr"],
3516 "following" => "true",
3517 "sharing" => "true"];
3519 logger("Send share ".print_r($message, true), LOGGER_DEBUG);
3521 return self::buildAndTransmit($owner, $contact, "contact", $message);
3525 * @brief sends an "unshare"
3527 * @param array $owner the array of the item owner
3528 * @param array $contact Target of the communication
3530 * @return int The result of the transmission
3532 public static function sendUnshare($owner, $contact)
3534 $message = ["author" => self::myHandle($owner),
3535 "recipient" => $contact["addr"],
3536 "following" => "false",
3537 "sharing" => "false"];
3539 logger("Send unshare ".print_r($message, true), LOGGER_DEBUG);
3541 return self::buildAndTransmit($owner, $contact, "contact", $message);
3545 * @brief Checks a message body if it is a reshare
3547 * @param string $body The message body that is to be check
3548 * @param bool $complete Should it be a complete check or a simple check?
3550 * @return array|bool Reshare details or "false" if no reshare
3552 public static function isReshare($body, $complete = true)
3554 $body = trim($body);
3556 // Skip if it isn't a pure repeated messages
3557 // Does it start with a share?
3558 if ((strpos($body, "[share") > 0) && $complete) {
3562 // Does it end with a share?
3563 if (strlen($body) > (strrpos($body, "[/share]") + 8)) {
3567 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", "$1", $body);
3568 // Skip if there is no shared message in there
3569 if ($body == $attributes) {
3573 // If we don't do the complete check we quit here
3576 preg_match("/guid='(.*?)'/ism", $attributes, $matches);
3577 if ($matches[1] != "") {
3578 $guid = $matches[1];
3581 preg_match('/guid="(.*?)"/ism', $attributes, $matches);
3582 if ($matches[1] != "") {
3583 $guid = $matches[1];
3586 if (($guid != "") && $complete) {
3588 "SELECT `contact-id` FROM `item` WHERE `guid` = '%s' AND `network` IN ('%s', '%s') LIMIT 1",
3595 $ret["root_handle"] = self::handleFromContact($r[0]["contact-id"]);
3596 $ret["root_guid"] = $guid;
3602 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
3603 if ($matches[1] != "") {
3604 $profile = $matches[1];
3607 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
3608 if ($matches[1] != "") {
3609 $profile = $matches[1];
3614 if ($profile != "") {
3615 if (Contact::getIdForURL($profile)) {
3616 $author = Contact::getDetailsByURL($profile);
3617 $ret["root_handle"] = $author['addr'];
3621 if (!empty($guid)) {
3622 $ret["root_guid"] = $guid;
3625 if (empty($ret) && !$complete) {
3633 * @brief Create an event array
3635 * @param integer $event_id The id of the event
3637 * @return array with event data
3639 private static function buildEvent($event_id)
3641 $r = q("SELECT `guid`, `uid`, `start`, `finish`, `nofinish`, `summary`, `desc`, `location`, `adjust` FROM `event` WHERE `id` = %d", intval($event_id));
3642 if (!DBM::is_result($r)) {
3650 $r = q("SELECT `timezone` FROM `user` WHERE `uid` = %d", intval($event['uid']));
3651 if (!DBM::is_result($r)) {
3657 $r = q("SELECT `addr`, `nick` FROM `contact` WHERE `uid` = %d AND `self`", intval($event['uid']));
3658 if (!DBM::is_result($r)) {
3664 $eventdata['author'] = self::myHandle($owner);
3666 if ($event['guid']) {
3667 $eventdata['guid'] = $event['guid'];
3670 $mask = DateTimeFormat::ATOM;
3672 /// @todo - establish "all day" events in Friendica
3673 $eventdata["all_day"] = "false";
3675 if (!$event['adjust']) {
3676 $eventdata['timezone'] = $user['timezone'];
3678 if ($eventdata['timezone'] == "") {
3679 $eventdata['timezone'] = 'UTC';
3683 if ($event['start']) {
3684 $eventdata['start'] = DateTimeFormat::convert($event['start'], "UTC", $eventdata['timezone'], $mask);
3686 if ($event['finish'] && !$event['nofinish']) {
3687 $eventdata['end'] = DateTimeFormat::convert($event['finish'], "UTC", $eventdata['timezone'], $mask);
3689 if ($event['summary']) {
3690 $eventdata['summary'] = html_entity_decode(BBCode::toMarkdown($event['summary']));
3692 if ($event['desc']) {
3693 $eventdata['description'] = html_entity_decode(BBCode::toMarkdown($event['desc']));
3695 if ($event['location']) {
3696 $event['location'] = preg_replace("/\[map\](.*?)\[\/map\]/ism", '$1', $event['location']);
3697 $coord = Map::getCoordinates($event['location']);
3700 $location["address"] = html_entity_decode(BBCode::toMarkdown($event['location']));
3701 if (!empty($coord['lat']) && !empty($coord['lon'])) {
3702 $location["lat"] = $coord['lat'];
3703 $location["lng"] = $coord['lon'];
3705 $location["lat"] = 0;
3706 $location["lng"] = 0;
3708 $eventdata['location'] = $location;
3715 * @brief Create a post (status message or reshare)
3717 * @param array $item The item that will be exported
3718 * @param array $owner the array of the item owner
3721 * 'type' -> Message type ("status_message" or "reshare")
3722 * 'message' -> Array of XML elements of the status
3724 public static function buildStatus($item, $owner)
3726 $cachekey = "diaspora:buildStatus:".$item['guid'];
3728 $result = Cache::get($cachekey);
3729 if (!is_null($result)) {
3733 $myaddr = self::myHandle($owner);
3735 $public = (($item["private"]) ? "false" : "true");
3737 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
3739 // Detect a share element and do a reshare
3740 if (!$item['private'] && ($ret = self::isReshare($item["body"]))) {
3741 $message = ["author" => $myaddr,
3742 "guid" => $item["guid"],
3743 "created_at" => $created,
3744 "root_author" => $ret["root_handle"],
3745 "root_guid" => $ret["root_guid"],
3746 "provider_display_name" => $item["app"],
3747 "public" => $public];
3751 $title = $item["title"];
3752 $body = $item["body"];
3754 if ($item['author-link'] != $item['owner-link']) {
3755 require_once 'mod/share.php';
3756 $body = share_header($item['author-name'], $item['author-link'], $item['author-avatar'],
3757 "", $item['created'], $item['plink']) . $body . '[/share]';
3760 // convert to markdown
3761 $body = html_entity_decode(BBCode::toMarkdown($body));
3764 if (strlen($title)) {
3765 $body = "## ".html_entity_decode($title)."\n\n".$body;
3768 if ($item["attach"]) {
3769 $cnt = preg_match_all('/href=\"(.*?)\"(.*?)title=\"(.*?)\"/ism', $item["attach"], $matches, PREG_SET_ORDER);
3771 $body .= "\n".L10n::t("Attachments:")."\n";
3772 foreach ($matches as $mtch) {
3773 $body .= "[".$mtch[3]."](".$mtch[1].")\n";
3780 if ($item["location"] != "")
3781 $location["address"] = $item["location"];
3783 if ($item["coord"] != "") {
3784 $coord = explode(" ", $item["coord"]);
3785 $location["lat"] = $coord[0];
3786 $location["lng"] = $coord[1];
3789 $message = ["author" => $myaddr,
3790 "guid" => $item["guid"],
3791 "created_at" => $created,
3792 "public" => $public,
3794 "provider_display_name" => $item["app"],
3795 "location" => $location];
3797 // Diaspora rejects messages when they contain a location without "lat" or "lng"
3798 if (!isset($location["lat"]) || !isset($location["lng"])) {
3799 unset($message["location"]);
3802 if ($item['event-id'] > 0) {
3803 $event = self::buildEvent($item['event-id']);
3804 if (count($event)) {
3805 $message['event'] = $event;
3807 if (!empty($event['location']['address']) &&
3808 !empty($event['location']['lat']) &&
3809 !empty($event['location']['lng'])) {
3810 $message['location'] = $event['location'];
3813 /// @todo Once Diaspora supports it, we will remove the body and the location hack above
3814 // $message['text'] = '';
3818 $type = "status_message";
3821 $msg = ["type" => $type, "message" => $message];
3823 Cache::set($cachekey, $msg, CACHE_QUARTER_HOUR);
3829 * @brief Sends a post
3831 * @param array $item The item that will be exported
3832 * @param array $owner the array of the item owner
3833 * @param array $contact Target of the communication
3834 * @param bool $public_batch Is it a public post?
3836 * @return int The result of the transmission
3838 public static function sendStatus($item, $owner, $contact, $public_batch = false)
3840 $status = self::buildStatus($item, $owner);
3842 return self::buildAndTransmit($owner, $contact, $status["type"], $status["message"], $public_batch, $item["guid"]);
3846 * @brief Creates a "like" object
3848 * @param array $item The item that will be exported
3849 * @param array $owner the array of the item owner
3851 * @return array The data for a "like"
3853 private static function constructLike($item, $owner)
3856 "SELECT `guid`, `uri`, `parent-uri` FROM `item` WHERE `uri` = '%s' LIMIT 1",
3857 dbesc($item["thr-parent"])
3859 if (!DBM::is_result($p)) {
3865 $target_type = ($parent["uri"] === $parent["parent-uri"] ? "Post" : "Comment");
3867 if ($item['verb'] === ACTIVITY_LIKE) {
3869 } elseif ($item['verb'] === ACTIVITY_DISLIKE) {
3870 $positive = "false";
3873 return(["author" => self::myHandle($owner),
3874 "guid" => $item["guid"],
3875 "parent_guid" => $parent["guid"],
3876 "parent_type" => $target_type,
3877 "positive" => $positive,
3878 "author_signature" => ""]);
3882 * @brief Creates an "EventParticipation" object
3884 * @param array $item The item that will be exported
3885 * @param array $owner the array of the item owner
3887 * @return array The data for an "EventParticipation"
3889 private static function constructAttend($item, $owner)
3892 "SELECT `guid`, `uri`, `parent-uri` FROM `item` WHERE `uri` = '%s' LIMIT 1",
3893 dbesc($item["thr-parent"])
3895 if (!DBM::is_result($p)) {
3901 switch ($item['verb']) {
3902 case ACTIVITY_ATTEND:
3903 $attend_answer = 'accepted';
3905 case ACTIVITY_ATTENDNO:
3906 $attend_answer = 'declined';
3908 case ACTIVITY_ATTENDMAYBE:
3909 $attend_answer = 'tentative';
3912 logger('Unknown verb '.$item['verb'].' in item '.$item['guid']);
3916 return(["author" => self::myHandle($owner),
3917 "guid" => $item["guid"],
3918 "parent_guid" => $parent["guid"],
3919 "status" => $attend_answer,
3920 "author_signature" => ""]);
3924 * @brief Creates the object for a comment
3926 * @param array $item The item that will be exported
3927 * @param array $owner the array of the item owner
3929 * @return array The data for a comment
3931 private static function constructComment($item, $owner)
3933 $cachekey = "diaspora:constructComment:".$item['guid'];
3935 $result = Cache::get($cachekey);
3936 if (!is_null($result)) {
3941 "SELECT `guid` FROM `item` WHERE `parent` = %d AND `id` = %d LIMIT 1",
3942 intval($item["parent"]),
3943 intval($item["parent"])
3946 if (!DBM::is_result($p)) {
3952 $text = html_entity_decode(BBCode::toMarkdown($item["body"]));
3953 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
3955 $comment = ["author" => self::myHandle($owner),
3956 "guid" => $item["guid"],
3957 "created_at" => $created,
3958 "parent_guid" => $parent["guid"],
3960 "author_signature" => ""];
3962 // Send the thread parent guid only if it is a threaded comment
3963 if ($item['thr-parent'] != $item['parent-uri']) {
3964 $comment['thread_parent_guid'] = self::getGuidFromUri($item['thr-parent'], $item['uid']);
3967 Cache::set($cachekey, $comment, CACHE_QUARTER_HOUR);
3973 * @brief Send a like or a comment
3975 * @param array $item The item that will be exported
3976 * @param array $owner the array of the item owner
3977 * @param array $contact Target of the communication
3978 * @param bool $public_batch Is it a public post?
3980 * @return int The result of the transmission
3982 public static function sendFollowup($item, $owner, $contact, $public_batch = false)
3984 if (in_array($item['verb'], [ACTIVITY_ATTEND, ACTIVITY_ATTENDNO, ACTIVITY_ATTENDMAYBE])) {
3985 $message = self::constructAttend($item, $owner);
3986 $type = "event_participation";
3987 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3988 $message = self::constructLike($item, $owner);
3991 $message = self::constructComment($item, $owner);
3999 $message["author_signature"] = self::signature($owner, $message);
4001 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
4005 * @brief Creates a message from a signature record entry
4007 * @param array $item The item that will be exported
4008 * @param array $signature The entry of the "sign" record
4010 * @return string The message
4012 private static function messageFromSignature($item, $signature)
4014 // Split the signed text
4015 $signed_parts = explode(";", $signature['signed_text']);
4017 if ($item["deleted"]) {
4018 $message = ["author" => $signature['signer'],
4019 "target_guid" => $signed_parts[0],
4020 "target_type" => $signed_parts[1]];
4021 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4022 $message = ["author" => $signed_parts[4],
4023 "guid" => $signed_parts[1],
4024 "parent_guid" => $signed_parts[3],
4025 "parent_type" => $signed_parts[2],
4026 "positive" => $signed_parts[0],
4027 "author_signature" => $signature['signature'],
4028 "parent_author_signature" => ""];
4030 // Remove the comment guid
4031 $guid = array_shift($signed_parts);
4033 // Remove the parent guid
4034 $parent_guid = array_shift($signed_parts);
4036 // Remove the handle
4037 $handle = array_pop($signed_parts);
4039 // Glue the parts together
4040 $text = implode(";", $signed_parts);
4042 $message = ["author" => $handle,
4044 "parent_guid" => $parent_guid,
4045 "text" => implode(";", $signed_parts),
4046 "author_signature" => $signature['signature'],
4047 "parent_author_signature" => ""];
4053 * @brief Relays messages (like, comment, retraction) to other servers if we are the thread owner
4055 * @param array $item The item that will be exported
4056 * @param array $owner the array of the item owner
4057 * @param array $contact Target of the communication
4058 * @param bool $public_batch Is it a public post?
4060 * @return int The result of the transmission
4062 public static function sendRelay($item, $owner, $contact, $public_batch = false)
4064 if ($item["deleted"]) {
4065 return self::sendRetraction($item, $owner, $contact, $public_batch, true);
4066 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4072 logger("Got relayable data ".$type." for item ".$item["guid"]." (".$item["id"].")", LOGGER_DEBUG);
4074 // fetch the original signature
4077 "SELECT `signed_text`, `signature`, `signer` FROM `sign` WHERE `iid` = %d LIMIT 1",
4082 logger("Couldn't fetch signatur for item ".$item["guid"]." (".$item["id"].")", LOGGER_DEBUG);
4088 // Old way - is used by the internal Friendica functions
4089 /// @todo Change all signatur storing functions to the new format
4090 if ($signature['signed_text'] && $signature['signature'] && $signature['signer']) {
4091 $message = self::messageFromSignature($item, $signature);
4093 $msg = json_decode($signature['signed_text'], true);
4096 if (is_array($msg)) {
4097 foreach ($msg as $field => $data) {
4098 if (!$item["deleted"]) {
4099 if ($field == "diaspora_handle") {
4102 if ($field == "target_type") {
4103 $field = "parent_type";
4107 $message[$field] = $data;
4110 logger("Signature text for item ".$item["guid"]." (".$item["id"].") couldn't be extracted: ".$signature['signed_text'], LOGGER_DEBUG);
4114 $message["parent_author_signature"] = self::signature($owner, $message);
4116 logger("Relayed data ".print_r($message, true), LOGGER_DEBUG);
4118 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
4122 * @brief Sends a retraction (deletion) of a message, like or comment
4124 * @param array $item The item that will be exported
4125 * @param array $owner the array of the item owner
4126 * @param array $contact Target of the communication
4127 * @param bool $public_batch Is it a public post?
4128 * @param bool $relay Is the retraction transmitted from a relay?
4130 * @return int The result of the transmission
4132 public static function sendRetraction($item, $owner, $contact, $public_batch = false, $relay = false)
4134 $itemaddr = self::handleFromContact($item["contact-id"], $item["author-id"]);
4136 $msg_type = "retraction";
4138 if ($item['id'] == $item['parent']) {
4139 $target_type = "Post";
4140 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4141 $target_type = "Like";
4143 $target_type = "Comment";
4146 $message = ["author" => $itemaddr,
4147 "target_guid" => $item['guid'],
4148 "target_type" => $target_type];
4150 logger("Got message ".print_r($message, true), LOGGER_DEBUG);
4152 return self::buildAndTransmit($owner, $contact, $msg_type, $message, $public_batch, $item["guid"]);
4156 * @brief Sends a mail
4158 * @param array $item The item that will be exported
4159 * @param array $owner The owner
4160 * @param array $contact Target of the communication
4162 * @return int The result of the transmission
4164 public static function sendMail($item, $owner, $contact)
4166 $myaddr = self::myHandle($owner);
4169 "SELECT * FROM `conv` WHERE `id` = %d AND `uid` = %d LIMIT 1",
4170 intval($item["convid"]),
4171 intval($item["uid"])
4174 if (!DBM::is_result($r)) {
4175 logger("conversation not found.");
4181 "author" => $cnv["creator"],
4182 "guid" => $cnv["guid"],
4183 "subject" => $cnv["subject"],
4184 "created_at" => DateTimeFormat::utc($cnv['created'], DateTimeFormat::ATOM),
4185 "participants" => $cnv["recips"]
4188 $body = BBCode::toMarkdown($item["body"]);
4189 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
4192 "author" => $myaddr,
4193 "guid" => $item["guid"],
4194 "conversation_guid" => $cnv["guid"],
4196 "created_at" => $created,
4199 if ($item["reply"]) {
4204 "author" => $cnv["creator"],
4205 "guid" => $cnv["guid"],
4206 "subject" => $cnv["subject"],
4207 "created_at" => DateTimeFormat::utc($cnv['created'], DateTimeFormat::ATOM),
4208 "participants" => $cnv["recips"],
4211 $type = "conversation";
4214 return self::buildAndTransmit($owner, $contact, $type, $message, false, $item["guid"]);
4218 * @brief Split a name into first name and last name
4220 * @param string $name The name
4222 * @return array The array with "first" and "last"
4224 public static function splitName($name) {
4225 $name = trim($name);
4227 // Is the name longer than 64 characters? Then cut the rest of it.
4228 if (strlen($name) > 64) {
4229 if ((strpos($name, ' ') <= 64) && (strpos($name, ' ') !== false)) {
4230 $name = trim(substr($name, 0, strrpos(substr($name, 0, 65), ' ')));
4232 $name = substr($name, 0, 64);
4236 // Take the first word as first name
4237 $first = ((strpos($name, ' ') ? trim(substr($name, 0, strpos($name, ' '))) : $name));
4238 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4239 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4240 return ['first' => $first, 'last' => $last];
4243 // Take the last word as last name
4244 $first = ((strrpos($name, ' ') ? trim(substr($name, 0, strrpos($name, ' '))) : $name));
4245 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4247 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4248 return ['first' => $first, 'last' => $last];
4251 // Take the first 32 characters if there is no space in the first 32 characters
4252 if ((strpos($name, ' ') > 32) || (strpos($name, ' ') === false)) {
4253 $first = substr($name, 0, 32);
4254 $last = substr($name, 32);
4255 return ['first' => $first, 'last' => $last];
4258 $first = trim(substr($name, 0, strrpos(substr($name, 0, 33), ' ')));
4259 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4261 // Check if the last name is longer than 32 characters
4262 if (strlen($last) > 32) {
4263 if (strpos($last, ' ') <= 32) {
4264 $last = trim(substr($last, 0, strrpos(substr($last, 0, 33), ' ')));
4266 $last = substr($last, 0, 32);
4270 return ['first' => $first, 'last' => $last];
4274 * @brief Create profile data
4276 * @param int $uid The user id
4278 * @return array The profile data
4280 private static function createProfileData($uid)
4283 "SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.*, `user`.`prvkey` AS `uprvkey`, `contact`.`addr`
4285 INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
4286 INNER JOIN `contact` ON `profile`.`uid` = `contact`.`uid`
4287 WHERE `user`.`uid` = %d AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
4296 $handle = $profile["addr"];
4298 $split_name = self::splitName($profile['name']);
4299 $first = $split_name['first'];
4300 $last = $split_name['last'];
4302 $large = System::baseUrl().'/photo/custom/300/'.$profile['uid'].'.jpg';
4303 $medium = System::baseUrl().'/photo/custom/100/'.$profile['uid'].'.jpg';
4304 $small = System::baseUrl().'/photo/custom/50/' .$profile['uid'].'.jpg';
4305 $searchable = (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false');
4311 if ($searchable === 'true') {
4314 if ($profile['dob'] && ($profile['dob'] > '0000-00-00')) {
4315 list($year, $month, $day) = sscanf($profile['dob'], '%4d-%2d-%2d');
4319 $dob = DateTimeFormat::utc($year . '-' . $month . '-'. $day, 'Y-m-d');
4322 $about = $profile['about'];
4323 $about = strip_tags(BBCode::convert($about));
4325 $location = Profile::formatLocation($profile);
4327 if ($profile['pub_keywords']) {
4328 $kw = str_replace(',', ' ', $profile['pub_keywords']);
4329 $kw = str_replace(' ', ' ', $kw);
4330 $arr = explode(' ', $profile['pub_keywords']);
4332 for ($x = 0; $x < 5; $x ++) {
4333 if (trim($arr[$x])) {
4334 $tags .= '#'. trim($arr[$x]) .' ';
4339 $tags = trim($tags);
4342 return ["author" => $handle,
4343 "first_name" => $first,
4344 "last_name" => $last,
4345 "image_url" => $large,
4346 "image_url_medium" => $medium,
4347 "image_url_small" => $small,
4349 "gender" => $profile['gender'],
4351 "location" => $location,
4352 "searchable" => $searchable,
4354 "tag_string" => $tags];
4358 * @brief Sends profile data
4360 * @param int $uid The user id
4361 * @param bool $recips optional, default false
4364 public static function sendProfile($uid, $recips = false)
4370 $owner = User::getOwnerDataById($uid);
4377 "SELECT `id`,`name`,`network`,`pubkey`,`notify` FROM `contact` WHERE `network` = '%s'
4378 AND `uid` = %d AND `rel` != %d",
4379 dbesc(NETWORK_DIASPORA),
4381 intval(CONTACT_IS_SHARING)
4389 $message = self::createProfileData($uid);
4391 foreach ($recips as $recip) {
4392 logger("Send updated profile data for user ".$uid." to contact ".$recip["id"], LOGGER_DEBUG);
4393 self::buildAndTransmit($owner, $recip, "profile", $message, false, "", false);
4398 * @brief Stores the signature for likes that are created on our system
4400 * @param array $contact The contact array of the "like"
4401 * @param int $post_id The post id of the "like"
4403 * @return bool Success
4405 public static function storeLikeSignature($contact, $post_id)
4407 // Is the contact the owner? Then fetch the private key
4408 if (!$contact['self'] || ($contact['uid'] == 0)) {
4409 logger("No owner post, so not storing signature", LOGGER_DEBUG);
4413 $r = q("SELECT `prvkey` FROM `user` WHERE `uid` = %d LIMIT 1", intval($contact['uid']));
4414 if (!DBM::is_result($r)) {
4418 $contact["uprvkey"] = $r[0]['prvkey'];
4420 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1", intval($post_id));
4421 if (!DBM::is_result($r)) {
4425 if (!in_array($r[0]["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4429 $message = self::constructLike($r[0], $contact);
4430 if ($message === false) {
4434 $message["author_signature"] = self::signature($contact, $message);
4437 * Now store the signature more flexible to dynamically support new fields.
4438 * This will break Diaspora compatibility with Friendica versions prior to 3.5.
4440 dba::insert('sign', ['iid' => $post_id, 'signed_text' => json_encode($message)]);
4442 logger('Stored diaspora like signature');
4447 * @brief Stores the signature for comments that are created on our system
4449 * @param array $item The item array of the comment
4450 * @param array $contact The contact array of the item owner
4451 * @param string $uprvkey The private key of the sender
4452 * @param int $message_id The message id of the comment
4454 * @return bool Success
4456 public static function storeCommentSignature($item, $contact, $uprvkey, $message_id)
4458 if ($uprvkey == "") {
4459 logger('No private key, so not storing comment signature', LOGGER_DEBUG);
4463 $contact["uprvkey"] = $uprvkey;
4465 $message = self::constructComment($item, $contact);
4466 if ($message === false) {
4470 $message["author_signature"] = self::signature($contact, $message);
4473 * Now store the signature more flexible to dynamically support new fields.
4474 * This will break Diaspora compatibility with Friendica versions prior to 3.5.
4476 dba::insert('sign', ['iid' => $message_id, 'signed_text' => json_encode($message)]);
4478 logger('Stored diaspora comment signature');