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 $enabled = intval(Config::get("system", "diaspora_enabled"));
589 logger("diaspora is disabled");
593 if (!($fields = self::validPosting($msg))) {
594 logger("Invalid posting");
598 $importer = ["uid" => 0, "page-flags" => PAGE_FREELOVE];
599 $message_id = self::dispatch($importer, $msg, $fields);
605 * @brief Dispatches the different message types to the different functions
607 * @param array $importer Array of the importer user
608 * @param array $msg The post that will be dispatched
609 * @param object $fields SimpleXML object that contains the message
611 * @return int The message id of the generated message, "true" or "false" if there was an error
613 public static function dispatch($importer, $msg, $fields = null)
615 // The sender is the handle of the contact that sent the message.
616 // This will often be different with relayed messages (for example "like" and "comment")
617 $sender = $msg["author"];
619 // This is only needed for private postings since this is already done for public ones before
620 if (is_null($fields)) {
622 if (!($fields = self::validPosting($msg))) {
623 logger("Invalid posting");
630 $type = $fields->getName();
632 logger("Received message type ".$type." from ".$sender." for user ".$importer["uid"], LOGGER_DEBUG);
635 case "account_migration":
637 logger('Message with type ' . $type . ' is not private, quitting.');
640 return self::receiveAccountMigration($importer, $fields);
642 case "account_deletion":
643 return self::receiveAccountDeletion($fields);
646 return self::receiveComment($importer, $sender, $fields, $msg["message"]);
650 logger('Message with type ' . $type . ' is not private, quitting.');
653 return self::receiveContactRequest($importer, $fields);
657 logger('Message with type ' . $type . ' is not private, quitting.');
660 return self::receiveConversation($importer, $msg, $fields);
663 return self::receiveLike($importer, $sender, $fields);
667 logger('Message with type ' . $type . ' is not private, quitting.');
670 return self::receiveMessage($importer, $fields);
672 case "participation":
674 logger('Message with type ' . $type . ' is not private, quitting.');
677 return self::receiveParticipation($importer, $fields);
679 case "photo": // Not implemented
680 return self::receivePhoto($importer, $fields);
682 case "poll_participation": // Not implemented
683 return self::receivePollParticipation($importer, $fields);
687 logger('Message with type ' . $type . ' is not private, quitting.');
690 return self::receiveProfile($importer, $fields);
693 return self::receiveReshare($importer, $fields, $msg["message"]);
696 return self::receiveRetraction($importer, $sender, $fields);
698 case "status_message":
699 return self::receiveStatusMessage($importer, $fields, $msg["message"]);
702 logger("Unknown message type ".$type);
710 * @brief Checks if a posting is valid and fetches the data fields.
712 * This function does not only check the signature.
713 * It also does the conversion between the old and the new diaspora format.
715 * @param array $msg Array with the XML, the sender handle and the sender signature
717 * @return bool|array If the posting is valid then an array with an SimpleXML object is returned
719 private static function validPosting($msg)
721 $data = XML::parseString($msg["message"]);
723 if (!is_object($data)) {
724 logger("No valid XML ".$msg["message"], LOGGER_DEBUG);
728 // Is this the new or the old version?
729 if ($data->getName() == "XML") {
731 foreach ($data->post->children() as $child) {
739 $type = $element->getName();
742 logger("Got message type ".$type.": ".$msg["message"], LOGGER_DATA);
744 // All retractions are handled identically from now on.
745 // In the new version there will only be "retraction".
746 if (in_array($type, ["signed_retraction", "relayable_retraction"]))
747 $type = "retraction";
749 if ($type == "request") {
753 $fields = new SimpleXMLElement("<".$type."/>");
756 $author_signature = null;
757 $parent_author_signature = null;
759 foreach ($element->children() as $fieldname => $entry) {
761 // Translation for the old XML structure
762 if ($fieldname == "diaspora_handle") {
763 $fieldname = "author";
765 if ($fieldname == "participant_handles") {
766 $fieldname = "participants";
768 if (in_array($type, ["like", "participation"])) {
769 if ($fieldname == "target_type") {
770 $fieldname = "parent_type";
773 if ($fieldname == "sender_handle") {
774 $fieldname = "author";
776 if ($fieldname == "recipient_handle") {
777 $fieldname = "recipient";
779 if ($fieldname == "root_diaspora_id") {
780 $fieldname = "root_author";
782 if ($type == "status_message") {
783 if ($fieldname == "raw_message") {
787 if ($type == "retraction") {
788 if ($fieldname == "post_guid") {
789 $fieldname = "target_guid";
791 if ($fieldname == "type") {
792 $fieldname = "target_type";
797 if (($fieldname == "author_signature") && ($entry != "")) {
798 $author_signature = base64_decode($entry);
799 } elseif (($fieldname == "parent_author_signature") && ($entry != "")) {
800 $parent_author_signature = base64_decode($entry);
801 } elseif (!in_array($fieldname, ["author_signature", "parent_author_signature", "target_author_signature"])) {
802 if ($signed_data != "") {
806 $signed_data .= $entry;
808 if (!in_array($fieldname, ["parent_author_signature", "target_author_signature"])
809 || ($orig_type == "relayable_retraction")
811 XML::copy($entry, $fields, $fieldname);
815 // This is something that shouldn't happen at all.
816 if (in_array($type, ["status_message", "reshare", "profile"])) {
817 if ($msg["author"] != $fields->author) {
818 logger("Message handle is not the same as envelope sender. Quitting this message.");
823 // Only some message types have signatures. So we quit here for the other types.
824 if (!in_array($type, ["comment", "like"])) {
827 // No author_signature? This is a must, so we quit.
828 if (!isset($author_signature)) {
829 logger("No author signature for type ".$type." - Message: ".$msg["message"], LOGGER_DEBUG);
833 if (isset($parent_author_signature)) {
834 $key = self::key($msg["author"]);
836 if (!Crypto::rsaVerify($signed_data, $parent_author_signature, $key, "sha256")) {
837 logger("No valid parent author signature for parent author ".$msg["author"]. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$parent_author_signature, LOGGER_DEBUG);
842 $key = self::key($fields->author);
844 if (!Crypto::rsaVerify($signed_data, $author_signature, $key, "sha256")) {
845 logger("No valid author signature for author ".$fields->author. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$author_signature, LOGGER_DEBUG);
853 * @brief Fetches the public key for a given handle
855 * @param string $handle The handle
857 * @return string The public key
859 private static function key($handle)
861 $handle = strval($handle);
863 logger("Fetching diaspora key for: ".$handle);
865 $r = self::personByHandle($handle);
874 * @brief Fetches data for a given handle
876 * @param string $handle The handle
878 * @return array the queried data
880 public static function personByHandle($handle)
884 $person = dba::selectFirst('fcontact', [], ['network' => NETWORK_DIASPORA, 'addr' => $handle]);
885 if (DBM::is_result($person)) {
886 logger("In cache " . print_r($person, true), LOGGER_DEBUG);
888 // update record occasionally so it doesn't get stale
889 $d = strtotime($person["updated"]." +00:00");
890 if ($d < strtotime("now - 14 days")) {
894 if ($person["guid"] == "") {
899 if (!DBM::is_result($person) || $update) {
900 logger("create or refresh", LOGGER_DEBUG);
901 $r = Probe::uri($handle, NETWORK_DIASPORA);
903 // Note that Friendica contacts will return a "Diaspora person"
904 // if Diaspora connectivity is enabled on their server
905 if ($r && ($r["network"] === NETWORK_DIASPORA)) {
906 self::addFContact($r, $update);
908 // Fetch the updated or added contact
909 $person = dba::selectFirst('fcontact', [], ['network' => NETWORK_DIASPORA, 'addr' => $handle]);
910 if (!DBM::is_result($person)) {
920 * @brief Updates the fcontact table
922 * @param array $arr The fcontact data
923 * @param bool $update Update or insert?
925 * @return string The id of the fcontact entry
927 private static function addFContact($arr, $update = false)
931 "UPDATE `fcontact` SET
945 WHERE `url` = '%s' AND `network` = '%s'",
947 dbesc($arr["photo"]),
948 dbesc($arr["request"]),
950 dbesc(strtolower($arr["addr"])),
952 dbesc($arr["batch"]),
953 dbesc($arr["notify"]),
955 dbesc($arr["confirm"]),
956 dbesc($arr["alias"]),
957 dbesc($arr["pubkey"]),
958 dbesc(DateTimeFormat::utcNow()),
960 dbesc($arr["network"])
964 "INSERT INTO `fcontact` (`url`,`name`,`photo`,`request`,`nick`,`addr`, `guid`,
965 `batch`, `notify`,`poll`,`confirm`,`network`,`alias`,`pubkey`,`updated`)
966 VALUES ('%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s')",
969 dbesc($arr["photo"]),
970 dbesc($arr["request"]),
974 dbesc($arr["batch"]),
975 dbesc($arr["notify"]),
977 dbesc($arr["confirm"]),
978 dbesc($arr["network"]),
979 dbesc($arr["alias"]),
980 dbesc($arr["pubkey"]),
981 dbesc(DateTimeFormat::utcNow())
989 * @brief get a handle (user@domain.tld) from a given contact id
991 * @param int $contact_id The id in the contact table
992 * @param int $pcontact_id The id in the contact table (Used for the public contact)
994 * @return string the handle
996 private static function handleFromContact($contact_id, $pcontact_id = 0)
1000 logger("contact id is ".$contact_id." - pcontact id is ".$pcontact_id, LOGGER_DEBUG);
1002 if ($pcontact_id != 0) {
1004 "SELECT `addr` FROM `contact` WHERE `id` = %d AND `addr` != ''",
1005 intval($pcontact_id)
1008 if (DBM::is_result($r)) {
1009 return strtolower($r[0]["addr"]);
1014 "SELECT `network`, `addr`, `self`, `url`, `nick` FROM `contact` WHERE `id` = %d",
1018 if (DBM::is_result($r)) {
1021 logger("contact 'self' = ".$contact['self']." 'url' = ".$contact['url'], LOGGER_DEBUG);
1023 if ($contact['addr'] != "") {
1024 $handle = $contact['addr'];
1026 $baseurl_start = strpos($contact['url'], '://') + 3;
1027 // allows installations in a subdirectory--not sure how Diaspora will handle
1028 $baseurl_length = strpos($contact['url'], '/profile') - $baseurl_start;
1029 $baseurl = substr($contact['url'], $baseurl_start, $baseurl_length);
1030 $handle = $contact['nick'].'@'.$baseurl;
1034 return strtolower($handle);
1038 * @brief get a url (scheme://domain.tld/u/user) from a given Diaspora*
1041 * @param mixed $fcontact_guid Hexadecimal string guid
1043 * @return string the contact url or null
1045 public static function urlFromContactGuid($fcontact_guid)
1047 logger("fcontact guid is ".$fcontact_guid, LOGGER_DEBUG);
1050 "SELECT `url` FROM `fcontact` WHERE `url` != '' AND `network` = '%s' AND `guid` = '%s'",
1051 dbesc(NETWORK_DIASPORA),
1052 dbesc($fcontact_guid)
1055 if (DBM::is_result($r)) {
1056 return $r[0]['url'];
1063 * @brief Get a contact id for a given handle
1065 * @todo Move to Friendica\Model\Contact
1067 * @param int $uid The user id
1068 * @param string $handle The handle in the format user@domain.tld
1070 * @return int Contact id
1072 private static function contactByHandle($uid, $handle)
1074 // First do a direct search on the contact table
1076 "SELECT * FROM `contact` WHERE `uid` = %d AND `addr` = '%s' LIMIT 1",
1081 if (DBM::is_result($r)) {
1085 * We haven't found it?
1086 * We use another function for it that will possibly create a contact entry.
1088 $cid = Contact::getIdForURL($handle, $uid);
1091 /// @TODO Contact retrieval should be encapsulated into an "entity" class like `Contact`
1092 $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1", intval($cid));
1094 if (DBM::is_result($r)) {
1100 $handle_parts = explode("@", $handle);
1101 $nurl_sql = "%%://".$handle_parts[1]."%%/profile/".$handle_parts[0];
1103 "SELECT * FROM `contact` WHERE `network` = '%s' AND `uid` = %d AND `nurl` LIKE '%s' LIMIT 1",
1104 dbesc(NETWORK_DFRN),
1108 if (DBM::is_result($r)) {
1112 logger("Haven't found contact for user ".$uid." and handle ".$handle, LOGGER_DEBUG);
1117 * @brief Check if posting is allowed for this contact
1119 * @param array $importer Array of the importer user
1120 * @param array $contact The contact that is checked
1121 * @param bool $is_comment Is the check for a comment?
1123 * @return bool is the contact allowed to post?
1125 private static function postAllow($importer, $contact, $is_comment = false)
1128 * Perhaps we were already sharing with this person. Now they're sharing with us.
1129 * That makes us friends.
1130 * Normally this should have handled by getting a request - but this could get lost
1132 // It is deactivated by now, due to side effects. See issue https://github.com/friendica/friendica/pull/4033
1133 // It is not removed by now. Possibly the code is needed?
1134 //if (!$is_comment && $contact["rel"] == CONTACT_IS_FOLLOWER && in_array($importer["page-flags"], array(PAGE_FREELOVE))) {
1137 // array('rel' => CONTACT_IS_FRIEND, 'writable' => true),
1138 // array('id' => $contact["id"], 'uid' => $contact["uid"])
1141 // $contact["rel"] = CONTACT_IS_FRIEND;
1142 // logger("defining user ".$contact["nick"]." as friend");
1145 // We don't seem to like that person
1146 if ($contact["blocked"] || $contact["readonly"]) {
1147 // Maybe blocked, don't accept.
1149 // We are following this person?
1150 } elseif (($contact["rel"] == CONTACT_IS_SHARING) || ($contact["rel"] == CONTACT_IS_FRIEND)) {
1151 // Yes, then it is fine.
1153 // Is it a post to a community?
1154 } elseif (($contact["rel"] == CONTACT_IS_FOLLOWER) && in_array($importer["page-flags"], [PAGE_COMMUNITY, PAGE_PRVGROUP])) {
1157 // Is the message a global user or a comment?
1158 } elseif (($importer["uid"] == 0) || $is_comment) {
1159 // Messages for the global users and comments are always accepted
1167 * @brief Fetches the contact id for a handle and checks if posting is allowed
1169 * @param array $importer Array of the importer user
1170 * @param string $handle The checked handle in the format user@domain.tld
1171 * @param bool $is_comment Is the check for a comment?
1173 * @return array The contact data
1175 private static function allowedContactByHandle($importer, $handle, $is_comment = false)
1177 $contact = self::contactByHandle($importer["uid"], $handle);
1179 logger("A Contact for handle ".$handle." and user ".$importer["uid"]." was not found");
1180 // If a contact isn't found, we accept it anyway if it is a comment
1188 if (!self::postAllow($importer, $contact, $is_comment)) {
1189 logger("The handle: ".$handle." is not allowed to post to user ".$importer["uid"]);
1196 * @brief Does the message already exists on the system?
1198 * @param int $uid The user id
1199 * @param string $guid The guid of the message
1201 * @return int|bool message id if the message already was stored into the system - or false.
1203 private static function messageExists($uid, $guid)
1206 "SELECT `id` FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1211 if (DBM::is_result($r)) {
1212 logger("message ".$guid." already exists for user ".$uid);
1220 * @brief Checks for links to posts in a message
1222 * @param array $item The item array
1225 private static function fetchGuid($item)
1227 $expression = "=diaspora://.*?/post/([0-9A-Za-z\-_@.:]{15,254}[0-9A-Za-z])=ism";
1228 preg_replace_callback(
1230 function ($match) use ($item) {
1231 self::fetchGuidSub($match, $item);
1236 preg_replace_callback(
1237 "&\[url=/posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
1238 function ($match) use ($item) {
1239 self::fetchGuidSub($match, $item);
1246 * @brief Checks for relative /people/* links in an item body to match local
1247 * contacts or prepends the remote host taken from the author link.
1249 * @param string $body The item body to replace links from
1250 * @param string $author_link The author link for missing local contact fallback
1252 * @return string the replaced string
1254 public static function replacePeopleGuid($body, $author_link)
1256 $return = preg_replace_callback(
1257 "&\[url=/people/([^\[\]]*)\](.*)\[\/url\]&Usi",
1258 function ($match) use ($author_link) {
1260 // 0 => '[url=/people/0123456789abcdef]Foo Bar[/url]'
1261 // 1 => '0123456789abcdef'
1263 $handle = self::urlFromContactGuid($match[1]);
1266 $return = '@[url='.$handle.']'.$match[2].'[/url]';
1268 // No local match, restoring absolute remote URL from author scheme and host
1269 $author_url = parse_url($author_link);
1270 $return = '[url='.$author_url['scheme'].'://'.$author_url['host'].'/people/'.$match[1].']'.$match[2].'[/url]';
1282 * @brief sub function of "fetchGuid" which checks for links in messages
1284 * @param array $match array containing a link that has to be checked for a message link
1285 * @param array $item The item array
1288 private static function fetchGuidSub($match, $item)
1290 if (!self::storeByGuid($match[1], $item["author-link"])) {
1291 self::storeByGuid($match[1], $item["owner-link"]);
1296 * @brief Fetches an item with a given guid from a given server
1298 * @param string $guid the message guid
1299 * @param string $server The server address
1300 * @param int $uid The user id of the user
1302 * @return int the message id of the stored message or false
1304 private static function storeByGuid($guid, $server, $uid = 0)
1306 $serverparts = parse_url($server);
1307 $server = $serverparts["scheme"]."://".$serverparts["host"];
1309 logger("Trying to fetch item ".$guid." from ".$server, LOGGER_DEBUG);
1311 $msg = self::message($guid, $server);
1317 logger("Successfully fetched item ".$guid." from ".$server, LOGGER_DEBUG);
1319 // Now call the dispatcher
1320 return self::dispatchPublic($msg);
1324 * @brief Fetches a message from a server
1326 * @param string $guid message guid
1327 * @param string $server The url of the server
1328 * @param int $level Endless loop prevention
1331 * 'message' => The message XML
1332 * 'author' => The author handle
1333 * 'key' => The public key of the author
1335 private static function message($guid, $server, $level = 0)
1341 // This will work for new Diaspora servers and Friendica servers from 3.5
1342 $source_url = $server."/fetch/post/".urlencode($guid);
1344 logger("Fetch post from ".$source_url, LOGGER_DEBUG);
1346 $envelope = Network::fetchUrl($source_url);
1348 logger("Envelope was fetched.", LOGGER_DEBUG);
1349 $x = self::verifyMagicEnvelope($envelope);
1351 logger("Envelope could not be verified.", LOGGER_DEBUG);
1353 logger("Envelope was verified.", LOGGER_DEBUG);
1359 // This will work for older Diaspora and Friendica servers
1361 $source_url = $server."/p/".urlencode($guid).".xml";
1362 logger("Fetch post from ".$source_url, LOGGER_DEBUG);
1364 $x = Network::fetchUrl($source_url);
1370 $source_xml = XML::parseString($x);
1372 if (!is_object($source_xml)) {
1376 if ($source_xml->post->reshare) {
1377 // Reshare of a reshare - old Diaspora version
1378 logger("Message is a reshare", LOGGER_DEBUG);
1379 return self::message($source_xml->post->reshare->root_guid, $server, ++$level);
1380 } elseif ($source_xml->getName() == "reshare") {
1381 // Reshare of a reshare - new Diaspora version
1382 logger("Message is a new reshare", LOGGER_DEBUG);
1383 return self::message($source_xml->root_guid, $server, ++$level);
1388 // Fetch the author - for the old and the new Diaspora version
1389 if ($source_xml->post->status_message->diaspora_handle) {
1390 $author = (string)$source_xml->post->status_message->diaspora_handle;
1391 } elseif ($source_xml->author && ($source_xml->getName() == "status_message")) {
1392 $author = (string)$source_xml->author;
1395 // If this isn't a "status_message" then quit
1397 logger("Message doesn't seem to be a status message", LOGGER_DEBUG);
1401 $msg = ["message" => $x, "author" => $author];
1403 $msg["key"] = self::key($msg["author"]);
1409 * @brief Fetches the item record of a given guid
1411 * @param int $uid The user id
1412 * @param string $guid message guid
1413 * @param string $author The handle of the item
1414 * @param array $contact The contact of the item owner
1416 * @return array the item record
1418 private static function parentItem($uid, $guid, $author, $contact)
1421 "SELECT `id`, `parent`, `body`, `wall`, `uri`, `guid`, `private`, `origin`,
1422 `author-name`, `author-link`, `author-avatar`,
1423 `owner-name`, `owner-link`, `owner-avatar`
1424 FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1430 $result = self::storeByGuid($guid, $contact["url"], $uid);
1433 $person = self::personByHandle($author);
1434 $result = self::storeByGuid($guid, $person["url"], $uid);
1438 logger("Fetched missing item ".$guid." - result: ".$result, LOGGER_DEBUG);
1441 "SELECT `id`, `body`, `wall`, `uri`, `private`, `origin`,
1442 `author-name`, `author-link`, `author-avatar`,
1443 `owner-name`, `owner-link`, `owner-avatar`
1444 FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1452 logger("parent item not found: parent: ".$guid." - user: ".$uid);
1455 logger("parent item found: parent: ".$guid." - user: ".$uid);
1461 * @brief returns contact details
1463 * @param array $def_contact The default contact if the person isn't found
1464 * @param array $person The record of the person
1465 * @param int $uid The user id
1468 * 'cid' => contact id
1469 * 'network' => network type
1471 private static function authorContactByUrl($def_contact, $person, $uid)
1473 $condition = ['nurl' => normalise_link($person["url"]), 'uid' => $uid];
1474 $contact = dba::selectFirst('contact', ['id', 'network'], $condition);
1475 if (DBM::is_result($contact)) {
1476 $cid = $contact["id"];
1477 $network = $contact["network"];
1479 $cid = $def_contact["id"];
1480 $network = NETWORK_DIASPORA;
1483 return ["cid" => $cid, "network" => $network];
1487 * @brief Is the profile a hubzilla profile?
1489 * @param string $url The profile link
1491 * @return bool is it a hubzilla server?
1493 public static function isRedmatrix($url)
1495 return(strstr($url, "/channel/"));
1499 * @brief Generate a post link with a given handle and message guid
1501 * @param string $addr The user handle
1502 * @param string $guid message guid
1503 * @param string $parent_guid optional parent guid
1505 * @return string the post link
1507 private static function plink($addr, $guid, $parent_guid = '')
1509 $contact = Contact::getDetailsByAddr($addr);
1513 if ($parent_guid != '') {
1514 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $parent_guid . "#" . $guid;
1516 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $guid;
1520 if ($contact["network"] == NETWORK_DFRN) {
1521 return str_replace("/profile/" . $contact["nick"] . "/", "/display/" . $guid, $contact["url"] . "/");
1524 if (self::isRedmatrix($contact["url"])) {
1525 return $contact["url"] . "/?f=&mid=" . $guid;
1528 if ($parent_guid != '') {
1529 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $parent_guid . "#" . $guid;
1531 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $guid;
1536 * @brief Receives account migration
1538 * @param array $importer Array of the importer user
1539 * @param object $data The message object
1541 * @return bool Success
1543 private static function receiveAccountMigration($importer, $data)
1545 $old_handle = notags(unxmlify($data->author));
1546 $new_handle = notags(unxmlify($data->profile->author));
1547 $signature = notags(unxmlify($data->signature));
1549 $contact = self::contactByHandle($importer["uid"], $old_handle);
1551 logger("cannot find contact for sender: ".$old_handle." and user ".$importer["uid"]);
1555 logger("Got migration for ".$old_handle.", to ".$new_handle." with user ".$importer["uid"]);
1558 $signed_text = 'AccountMigration:'.$old_handle.':'.$new_handle;
1559 $key = self::key($old_handle);
1560 if (!Crypto::rsaVerify($signed_text, $signature, $key, "sha256")) {
1561 logger('No valid signature for migration.');
1565 // Update the profile
1566 self::receiveProfile($importer, $data->profile);
1568 // change the technical stuff in contact and gcontact
1569 $data = Probe::uri($new_handle);
1570 if ($data['network'] == NETWORK_PHANTOM) {
1571 logger('Account for '.$new_handle." couldn't be probed.");
1575 $fields = ['url' => $data['url'], 'nurl' => normalise_link($data['url']),
1576 'name' => $data['name'], 'nick' => $data['nick'],
1577 'addr' => $data['addr'], 'batch' => $data['batch'],
1578 'notify' => $data['notify'], 'poll' => $data['poll'],
1579 'network' => $data['network']];
1581 dba::update('contact', $fields, ['addr' => $old_handle]);
1583 $fields = ['url' => $data['url'], 'nurl' => normalise_link($data['url']),
1584 'name' => $data['name'], 'nick' => $data['nick'],
1585 'addr' => $data['addr'], 'connect' => $data['addr'],
1586 'notify' => $data['notify'], 'photo' => $data['photo'],
1587 'server_url' => $data['baseurl'], 'network' => $data['network']];
1589 dba::update('gcontact', $fields, ['addr' => $old_handle]);
1591 logger('Contacts are updated.');
1594 /// @todo This is an extreme performance killer
1596 'owner-link' => [$contact["url"], $data["url"]],
1597 'author-link' => [$contact["url"], $data["url"]],
1599 foreach ($fields as $n => $f) {
1601 "SELECT `id` FROM `item` WHERE `%s` = '%s' AND `uid` = %d LIMIT 1",
1604 intval($importer["uid"])
1607 if (DBM::is_result($r)) {
1609 "UPDATE `item` SET `%s` = '%s' WHERE `%s` = '%s' AND `uid` = %d",
1614 intval($importer["uid"])
1623 logger('Items are updated.');
1629 * @brief Processes an account deletion
1631 * @param object $data The message object
1633 * @return bool Success
1635 private static function receiveAccountDeletion($data)
1637 $author = notags(unxmlify($data->author));
1639 $contacts = dba::select('contact', ['id'], ['addr' => $author]);
1640 while ($contact = dba::fetch($contacts)) {
1641 Contact::remove($contact["id"]);
1644 dba::delete('gcontact', ['addr' => $author]);
1646 logger('Removed contacts for ' . $author);
1652 * @brief Fetch the uri from our database if we already have this item (maybe from ourselves)
1654 * @param string $author Author handle
1655 * @param string $guid Message guid
1656 * @param boolean $onlyfound Only return uri when found in the database
1658 * @return string The constructed uri or the one from our database
1660 private static function getUriFromGuid($author, $guid, $onlyfound = false)
1662 $r = q("SELECT `uri` FROM `item` WHERE `guid` = '%s' LIMIT 1", dbesc($guid));
1663 if (DBM::is_result($r)) {
1664 return $r[0]["uri"];
1665 } elseif (!$onlyfound) {
1666 return $author.":".$guid;
1673 * @brief Fetch the guid from our database with a given uri
1675 * @param string $uri Message uri
1676 * @param string $uid Author handle
1678 * @return string The post guid
1680 private static function getGuidFromUri($uri, $uid)
1682 $r = q("SELECT `guid` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1", dbesc($uri), intval($uid));
1683 if (DBM::is_result($r)) {
1684 return $r[0]["guid"];
1691 * @brief Find the best importer for a comment, like, ...
1693 * @param string $guid The guid of the item
1695 * @return array|boolean the origin owner of that post - or false
1697 private static function importerForGuid($guid)
1699 $item = dba::fetch_first("SELECT `uid` FROM `item` WHERE `origin` AND `guid` = ? LIMIT 1", $guid);
1701 if (DBM::is_result($item)) {
1702 logger("Found user ".$item['uid']." as owner of item ".$guid, LOGGER_DEBUG);
1703 $contact = dba::fetch_first("SELECT * FROM `contact` WHERE `self` AND `uid` = ?", $item['uid']);
1704 if (DBM::is_result($contact)) {
1712 * @brief Processes an incoming comment
1714 * @param array $importer Array of the importer user
1715 * @param string $sender The sender of the message
1716 * @param object $data The message object
1717 * @param string $xml The original XML of the message
1719 * @return int The message id of the generated comment or "false" if there was an error
1721 private static function receiveComment($importer, $sender, $data, $xml)
1723 $author = notags(unxmlify($data->author));
1724 $guid = notags(unxmlify($data->guid));
1725 $parent_guid = notags(unxmlify($data->parent_guid));
1726 $text = unxmlify($data->text);
1728 if (isset($data->created_at)) {
1729 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
1731 $created_at = DateTimeFormat::utcNow();
1734 if (isset($data->thread_parent_guid)) {
1735 $thread_parent_guid = notags(unxmlify($data->thread_parent_guid));
1736 $thr_uri = self::getUriFromGuid("", $thread_parent_guid, true);
1741 $contact = self::allowedContactByHandle($importer, $sender, true);
1746 $message_id = self::messageExists($importer["uid"], $guid);
1751 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
1752 if (!$parent_item) {
1756 $person = self::personByHandle($author);
1757 if (!is_array($person)) {
1758 logger("unable to find author details");
1762 // Fetch the contact id - if we know this contact
1763 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
1767 $datarray["uid"] = $importer["uid"];
1768 $datarray["contact-id"] = $author_contact["cid"];
1769 $datarray["network"] = $author_contact["network"];
1771 $datarray["author-name"] = $person["name"];
1772 $datarray["author-link"] = $person["url"];
1773 $datarray["author-avatar"] = ((x($person, "thumb")) ? $person["thumb"] : $person["photo"]);
1775 $datarray["owner-name"] = $contact["name"];
1776 $datarray["owner-link"] = $contact["url"];
1777 $datarray["owner-avatar"] = ((x($contact, "thumb")) ? $contact["thumb"] : $contact["photo"]);
1779 $datarray["guid"] = $guid;
1780 $datarray["uri"] = self::getUriFromGuid($author, $guid);
1782 $datarray["type"] = "remote-comment";
1783 $datarray["verb"] = ACTIVITY_POST;
1784 $datarray["gravity"] = GRAVITY_COMMENT;
1786 if ($thr_uri != "") {
1787 $datarray["parent-uri"] = $thr_uri;
1789 $datarray["parent-uri"] = $parent_item["uri"];
1792 $datarray["object-type"] = ACTIVITY_OBJ_COMMENT;
1794 $datarray["protocol"] = PROTOCOL_DIASPORA;
1795 $datarray["source"] = $xml;
1797 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
1799 $datarray["plink"] = self::plink($author, $guid, $parent_item['guid']);
1801 $body = Markdown::toBBCode($text);
1803 $datarray["body"] = self::replacePeopleGuid($body, $person["url"]);
1805 self::fetchGuid($datarray);
1807 $message_id = Item::insert($datarray);
1809 if ($message_id <= 0) {
1814 logger("Stored comment ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
1815 if ($datarray['uid'] == 0) {
1816 Item::distribute($message_id);
1820 // If we are the origin of the parent we store the original data and notify our followers
1821 if ($message_id && $parent_item["origin"]) {
1822 // Formerly we stored the signed text, the signature and the author in different fields.
1823 // We now store the raw data so that we are more flexible.
1824 dba::insert('sign', ['iid' => $message_id, 'signed_text' => json_encode($data)]);
1827 Worker::add(PRIORITY_HIGH, "Notifier", "comment-import", $message_id);
1834 * @brief processes and stores private messages
1836 * @param array $importer Array of the importer user
1837 * @param array $contact The contact of the message
1838 * @param object $data The message object
1839 * @param array $msg Array of the processed message, author handle and key
1840 * @param object $mesg The private message
1841 * @param array $conversation The conversation record to which this message belongs
1843 * @return bool "true" if it was successful
1845 private static function receiveConversationMessage($importer, $contact, $data, $msg, $mesg, $conversation)
1847 $author = notags(unxmlify($data->author));
1848 $guid = notags(unxmlify($data->guid));
1849 $subject = notags(unxmlify($data->subject));
1851 // "diaspora_handle" is the element name from the old version
1852 // "author" is the element name from the new version
1853 if ($mesg->author) {
1854 $msg_author = notags(unxmlify($mesg->author));
1855 } elseif ($mesg->diaspora_handle) {
1856 $msg_author = notags(unxmlify($mesg->diaspora_handle));
1861 $msg_guid = notags(unxmlify($mesg->guid));
1862 $msg_conversation_guid = notags(unxmlify($mesg->conversation_guid));
1863 $msg_text = unxmlify($mesg->text);
1864 $msg_created_at = DateTimeFormat::utc(notags(unxmlify($mesg->created_at)));
1866 if ($msg_conversation_guid != $guid) {
1867 logger("message conversation guid does not belong to the current conversation.");
1871 $body = Markdown::toBBCode($msg_text);
1872 $message_uri = $msg_author.":".$msg_guid;
1874 $person = self::personByHandle($msg_author);
1879 "SELECT `id` FROM `mail` WHERE `guid` = '%s' AND `uid` = %d LIMIT 1",
1881 intval($importer["uid"])
1883 if (DBM::is_result($r)) {
1884 logger("duplicate message already delivered.", LOGGER_DEBUG);
1889 "INSERT INTO `mail` (`uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`)
1890 VALUES (%d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
1891 intval($importer["uid"]),
1893 intval($conversation["id"]),
1894 dbesc($person["name"]),
1895 dbesc($person["photo"]),
1896 dbesc($person["url"]),
1897 intval($contact["id"]),
1902 dbesc($message_uri),
1903 dbesc($author.":".$guid),
1904 dbesc($msg_created_at)
1909 dba::update('conv', ['updated' => DateTimeFormat::utcNow()], ['id' => $conversation["id"]]);
1913 "type" => NOTIFY_MAIL,
1914 "notify_flags" => $importer["notify-flags"],
1915 "language" => $importer["language"],
1916 "to_name" => $importer["username"],
1917 "to_email" => $importer["email"],
1918 "uid" =>$importer["uid"],
1919 "item" => ["subject" => $subject, "body" => $body],
1920 "source_name" => $person["name"],
1921 "source_link" => $person["url"],
1922 "source_photo" => $person["thumb"],
1923 "verb" => ACTIVITY_POST,
1930 * @brief Processes new private messages (answers to private messages are processed elsewhere)
1932 * @param array $importer Array of the importer user
1933 * @param array $msg Array of the processed message, author handle and key
1934 * @param object $data The message object
1936 * @return bool Success
1938 private static function receiveConversation($importer, $msg, $data)
1940 $author = notags(unxmlify($data->author));
1941 $guid = notags(unxmlify($data->guid));
1942 $subject = notags(unxmlify($data->subject));
1943 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
1944 $participants = notags(unxmlify($data->participants));
1946 $messages = $data->message;
1948 if (!count($messages)) {
1949 logger("empty conversation");
1953 $contact = self::allowedContactByHandle($importer, $msg["author"], true);
1958 $conversation = null;
1961 "SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1962 intval($importer["uid"]),
1966 $conversation = $c[0];
1969 "INSERT INTO `conv` (`uid`, `guid`, `creator`, `created`, `updated`, `subject`, `recips`)
1970 VALUES (%d, '%s', '%s', '%s', '%s', '%s', '%s')",
1971 intval($importer["uid"]),
1975 dbesc(DateTimeFormat::utcNow()),
1977 dbesc($participants)
1981 "SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1982 intval($importer["uid"]),
1988 $conversation = $c[0];
1991 if (!$conversation) {
1992 logger("unable to create conversation.");
1996 foreach ($messages as $mesg) {
1997 self::receiveConversationMessage($importer, $contact, $data, $msg, $mesg, $conversation);
2004 * @brief Creates the body for a "like" message
2006 * @param array $contact The contact that send us the "like"
2007 * @param array $parent_item The item array of the parent item
2008 * @param string $guid message guid
2010 * @return string the body
2012 private static function constructLikeBody($contact, $parent_item, $guid)
2014 $bodyverb = L10n::t('%1$s likes %2$s\'s %3$s');
2016 $ulink = "[url=".$contact["url"]."]".$contact["name"]."[/url]";
2017 $alink = "[url=".$parent_item["author-link"]."]".$parent_item["author-name"]."[/url]";
2018 $plink = "[url=".System::baseUrl()."/display/".urlencode($guid)."]".L10n::t("status")."[/url]";
2020 return sprintf($bodyverb, $ulink, $alink, $plink);
2024 * @brief Creates a XML object for a "like"
2026 * @param array $importer Array of the importer user
2027 * @param array $parent_item The item array of the parent item
2029 * @return string The XML
2031 private static function constructLikeObject($importer, $parent_item)
2033 $objtype = ACTIVITY_OBJ_NOTE;
2034 $link = '<link rel="alternate" type="text/html" href="'.System::baseUrl()."/display/".$importer["nickname"]."/".$parent_item["id"].'" />';
2035 $parent_body = $parent_item["body"];
2037 $xmldata = ["object" => ["type" => $objtype,
2039 "id" => $parent_item["uri"],
2042 "content" => $parent_body]];
2044 return XML::fromArray($xmldata, $xml, true);
2048 * @brief Processes "like" messages
2050 * @param array $importer Array of the importer user
2051 * @param string $sender The sender of the message
2052 * @param object $data The message object
2054 * @return int The message id of the generated like or "false" if there was an error
2056 private static function receiveLike($importer, $sender, $data)
2058 $author = notags(unxmlify($data->author));
2059 $guid = notags(unxmlify($data->guid));
2060 $parent_guid = notags(unxmlify($data->parent_guid));
2061 $parent_type = notags(unxmlify($data->parent_type));
2062 $positive = notags(unxmlify($data->positive));
2064 // likes on comments aren't supported by Diaspora - only on posts
2065 // But maybe this will be supported in the future, so we will accept it.
2066 if (!in_array($parent_type, ["Post", "Comment"])) {
2070 $contact = self::allowedContactByHandle($importer, $sender, true);
2075 $message_id = self::messageExists($importer["uid"], $guid);
2080 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
2081 if (!$parent_item) {
2085 $person = self::personByHandle($author);
2086 if (!is_array($person)) {
2087 logger("unable to find author details");
2091 // Fetch the contact id - if we know this contact
2092 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
2094 // "positive" = "false" would be a Dislike - wich isn't currently supported by Diaspora
2095 // We would accept this anyhow.
2096 if ($positive == "true") {
2097 $verb = ACTIVITY_LIKE;
2099 $verb = ACTIVITY_DISLIKE;
2104 $datarray["protocol"] = PROTOCOL_DIASPORA;
2106 $datarray["uid"] = $importer["uid"];
2107 $datarray["contact-id"] = $author_contact["cid"];
2108 $datarray["network"] = $author_contact["network"];
2110 $datarray["author-name"] = $person["name"];
2111 $datarray["author-link"] = $person["url"];
2112 $datarray["author-avatar"] = ((x($person, "thumb")) ? $person["thumb"] : $person["photo"]);
2114 $datarray["owner-name"] = $contact["name"];
2115 $datarray["owner-link"] = $contact["url"];
2116 $datarray["owner-avatar"] = ((x($contact, "thumb")) ? $contact["thumb"] : $contact["photo"]);
2118 $datarray["guid"] = $guid;
2119 $datarray["uri"] = self::getUriFromGuid($author, $guid);
2121 $datarray["type"] = "activity";
2122 $datarray["verb"] = $verb;
2123 $datarray["gravity"] = GRAVITY_LIKE;
2124 $datarray["parent-uri"] = $parent_item["uri"];
2126 $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
2127 $datarray["object"] = self::constructLikeObject($importer, $parent_item);
2129 $datarray["body"] = self::constructLikeBody($contact, $parent_item, $guid);
2131 $message_id = Item::insert($datarray);
2133 if ($message_id <= 0) {
2138 logger("Stored like ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
2139 if ($datarray['uid'] == 0) {
2140 Item::distribute($message_id);
2144 // like on comments have the comment as parent. So we need to fetch the toplevel parent
2145 if ($parent_item["id"] != $parent_item["parent"]) {
2146 $toplevel = dba::selectFirst('item', ['origin'], ['id' => $parent_item["parent"]]);
2147 $origin = $toplevel["origin"];
2149 $origin = $parent_item["origin"];
2152 // If we are the origin of the parent we store the original data and notify our followers
2153 if ($message_id && $origin) {
2154 // Formerly we stored the signed text, the signature and the author in different fields.
2155 // We now store the raw data so that we are more flexible.
2156 dba::insert('sign', ['iid' => $message_id, 'signed_text' => json_encode($data)]);
2159 Worker::add(PRIORITY_HIGH, "Notifier", "comment-import", $message_id);
2166 * @brief Processes private messages
2168 * @param array $importer Array of the importer user
2169 * @param object $data The message object
2171 * @return bool Success?
2173 private static function receiveMessage($importer, $data)
2175 $author = notags(unxmlify($data->author));
2176 $guid = notags(unxmlify($data->guid));
2177 $conversation_guid = notags(unxmlify($data->conversation_guid));
2178 $text = unxmlify($data->text);
2179 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
2181 $contact = self::allowedContactByHandle($importer, $author, true);
2186 $conversation = null;
2189 "SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
2190 intval($importer["uid"]),
2191 dbesc($conversation_guid)
2194 $conversation = $c[0];
2196 logger("conversation not available.");
2200 $message_uri = $author.":".$guid;
2202 $person = self::personByHandle($author);
2204 logger("unable to find author details");
2208 $body = Markdown::toBBCode($text);
2210 $body = self::replacePeopleGuid($body, $person["url"]);
2215 "SELECT `id` FROM `mail` WHERE `guid` = '%s' AND `uid` = %d LIMIT 1",
2217 intval($importer["uid"])
2219 if (DBM::is_result($r)) {
2220 logger("duplicate message already delivered.", LOGGER_DEBUG);
2225 "INSERT INTO `mail` (`uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`)
2226 VALUES ( %d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
2227 intval($importer["uid"]),
2229 intval($conversation["id"]),
2230 dbesc($person["name"]),
2231 dbesc($person["photo"]),
2232 dbesc($person["url"]),
2233 intval($contact["id"]),
2234 dbesc($conversation["subject"]),
2238 dbesc($message_uri),
2239 dbesc($author.":".$conversation["guid"]),
2245 dba::update('conv', ['updated' => DateTimeFormat::utcNow()], ['id' => $conversation["id"]]);
2250 * @brief Processes participations - unsupported by now
2252 * @param array $importer Array of the importer user
2253 * @param object $data The message object
2255 * @return bool always true
2257 private static function receiveParticipation($importer, $data)
2259 $author = strtolower(notags(unxmlify($data->author)));
2260 $parent_guid = notags(unxmlify($data->parent_guid));
2262 $contact_id = Contact::getIdForURL($author);
2264 logger('Contact not found: '.$author);
2268 $person = self::personByHandle($author);
2269 if (!is_array($person)) {
2270 logger("Person not found: ".$author);
2274 $item = dba::selectFirst('item', ['id'], ['guid' => $parent_guid, 'origin' => true, 'private' => false]);
2275 if (!DBM::is_result($item)) {
2276 logger('Item not found, no origin or private: '.$parent_guid);
2280 $author_parts = explode('@', $author);
2281 if (isset($author_parts[1])) {
2282 $server = $author_parts[1];
2284 // Should never happen
2288 logger('Received participation for ID: '.$item['id'].' - Contact: '.$contact_id.' - Server: '.$server, LOGGER_DEBUG);
2290 if (!dba::exists('participation', ['iid' => $item['id'], 'server' => $server])) {
2291 dba::insert('participation', ['iid' => $item['id'], 'cid' => $contact_id, 'fid' => $person['id'], 'server' => $server]);
2294 // Send all existing comments and likes to the requesting server
2295 $comments = dba::p("SELECT `item`.`id`, `item`.`verb`, `contact`.`self`
2297 INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
2298 WHERE `item`.`parent` = ? AND `item`.`id` != `item`.`parent`", $item['id']);
2299 while ($comment = dba::fetch($comments)) {
2300 if ($comment['verb'] == ACTIVITY_POST) {
2301 $cmd = $comment['self'] ? 'comment-new' : 'comment-import';
2303 $cmd = $comment['self'] ? 'like' : 'comment-import';
2305 logger("Send ".$cmd." for item ".$comment['id']." to contact ".$contact_id, LOGGER_DEBUG);
2306 Worker::add(PRIORITY_HIGH, 'Delivery', $cmd, $comment['id'], $contact_id);
2308 dba::close($comments);
2314 * @brief Processes photos - unneeded
2316 * @param array $importer Array of the importer user
2317 * @param object $data The message object
2319 * @return bool always true
2321 private static function receivePhoto($importer, $data)
2323 // There doesn't seem to be a reason for this function,
2324 // since the photo data is transmitted in the status message as well
2329 * @brief Processes poll participations - unssupported
2331 * @param array $importer Array of the importer user
2332 * @param object $data The message object
2334 * @return bool always true
2336 private static function receivePollParticipation($importer, $data)
2338 // We don't support polls by now
2343 * @brief Processes incoming profile updates
2345 * @param array $importer Array of the importer user
2346 * @param object $data The message object
2348 * @return bool Success
2350 private static function receiveProfile($importer, $data)
2352 $author = strtolower(notags(unxmlify($data->author)));
2354 $contact = self::contactByHandle($importer["uid"], $author);
2359 $name = unxmlify($data->first_name).((strlen($data->last_name)) ? " ".unxmlify($data->last_name) : "");
2360 $image_url = unxmlify($data->image_url);
2361 $birthday = unxmlify($data->birthday);
2362 $gender = unxmlify($data->gender);
2363 $about = Markdown::toBBCode(unxmlify($data->bio));
2364 $location = Markdown::toBBCode(unxmlify($data->location));
2365 $searchable = (unxmlify($data->searchable) == "true");
2366 $nsfw = (unxmlify($data->nsfw) == "true");
2367 $tags = unxmlify($data->tag_string);
2369 $tags = explode("#", $tags);
2372 foreach ($tags as $tag) {
2373 $tag = trim(strtolower($tag));
2379 $keywords = implode(", ", $keywords);
2381 $handle_parts = explode("@", $author);
2382 $nick = $handle_parts[0];
2385 $name = $handle_parts[0];
2388 if (preg_match("|^https?://|", $image_url) === 0) {
2389 $image_url = "http://".$handle_parts[1].$image_url;
2392 Contact::updateAvatar($image_url, $importer["uid"], $contact["id"]);
2394 // Generic birthday. We don't know the timezone. The year is irrelevant.
2396 $birthday = str_replace("1000", "1901", $birthday);
2398 if ($birthday != "") {
2399 $birthday = DateTimeFormat::utc($birthday, "Y-m-d");
2402 // this is to prevent multiple birthday notifications in a single year
2403 // if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
2405 if (substr($birthday, 5) === substr($contact["bd"], 5)) {
2406 $birthday = $contact["bd"];
2410 "UPDATE `contact` SET `name` = '%s', `nick` = '%s', `addr` = '%s', `name-date` = '%s', `bd` = '%s',
2411 `location` = '%s', `about` = '%s', `keywords` = '%s', `gender` = '%s' WHERE `id` = %d AND `uid` = %d",
2415 dbesc(DateTimeFormat::utcNow()),
2421 intval($contact["id"]),
2422 intval($importer["uid"])
2425 $gcontact = ["url" => $contact["url"], "network" => NETWORK_DIASPORA, "generation" => 2,
2426 "photo" => $image_url, "name" => $name, "location" => $location,
2427 "about" => $about, "birthday" => $birthday, "gender" => $gender,
2428 "addr" => $author, "nick" => $nick, "keywords" => $keywords,
2429 "hide" => !$searchable, "nsfw" => $nsfw];
2431 $gcid = GContact::update($gcontact);
2433 GContact::link($gcid, $importer["uid"], $contact["id"]);
2435 logger("Profile of contact ".$contact["id"]." stored for user ".$importer["uid"], LOGGER_DEBUG);
2441 * @brief Processes incoming friend requests
2443 * @param array $importer Array of the importer user
2444 * @param array $contact The contact that send the request
2447 private static function receiveRequestMakeFriend($importer, $contact)
2451 if ($contact["rel"] == CONTACT_IS_SHARING) {
2454 ['rel' => CONTACT_IS_FRIEND, 'writable' => true],
2455 ['id' => $contact["id"], 'uid' => $importer["uid"]]
2458 // send notification
2461 "SELECT `hide-friends` FROM `profile` WHERE `uid` = %d AND `is-default` = 1 LIMIT 1",
2462 intval($importer["uid"])
2465 if ($r && !$r[0]["hide-friends"] && !$contact["hidden"] && intval(PConfig::get($importer["uid"], "system", "post_newfriend"))) {
2467 "SELECT * FROM `contact` WHERE `self` AND `uid` = %d LIMIT 1",
2468 intval($importer["uid"])
2471 // they are not CONTACT_IS_FOLLOWER anymore but that's what we have in the array
2473 if ($self && $contact["rel"] == CONTACT_IS_FOLLOWER) {
2475 $arr["protocol"] = PROTOCOL_DIASPORA;
2476 $arr["uri"] = $arr["parent-uri"] = item_new_uri($a->get_hostname(), $importer["uid"]);
2477 $arr["uid"] = $importer["uid"];
2478 $arr["contact-id"] = $self[0]["id"];
2480 $arr["type"] = 'wall';
2481 $arr["gravity"] = 0;
2483 $arr["author-name"] = $arr["owner-name"] = $self[0]["name"];
2484 $arr["author-link"] = $arr["owner-link"] = $self[0]["url"];
2485 $arr["author-avatar"] = $arr["owner-avatar"] = $self[0]["thumb"];
2486 $arr["verb"] = ACTIVITY_FRIEND;
2487 $arr["object-type"] = ACTIVITY_OBJ_PERSON;
2489 $A = "[url=".$self[0]["url"]."]".$self[0]["name"]."[/url]";
2490 $B = "[url=".$contact["url"]."]".$contact["name"]."[/url]";
2491 $BPhoto = "[url=".$contact["url"]."][img]".$contact["thumb"]."[/img][/url]";
2492 $arr["body"] = L10n::t('%1$s is now friends with %2$s', $A, $B)."\n\n\n".$BPhoto;
2494 $arr["object"] = self::constructNewFriendObject($contact);
2496 $user = dba::selectFirst('user', ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'], ['uid' => $importer["uid"]]);
2498 $arr["allow_cid"] = $user["allow_cid"];
2499 $arr["allow_gid"] = $user["allow_gid"];
2500 $arr["deny_cid"] = $user["deny_cid"];
2501 $arr["deny_gid"] = $user["deny_gid"];
2503 $i = Item::insert($arr);
2505 Worker::add(PRIORITY_HIGH, "Notifier", "activity", $i);
2512 * @brief Creates a XML object for a "new friend" message
2514 * @param array $contact Array of the contact
2516 * @return string The XML
2518 private static function constructNewFriendObject($contact)
2520 $objtype = ACTIVITY_OBJ_PERSON;
2521 $link = '<link rel="alternate" type="text/html" href="'.$contact["url"].'" />'."\n".
2522 '<link rel="photo" type="image/jpeg" href="'.$contact["thumb"].'" />'."\n";
2524 $xmldata = ["object" => ["type" => $objtype,
2525 "title" => $contact["name"],
2526 "id" => $contact["url"]."/".$contact["name"],
2529 return XML::fromArray($xmldata, $xml, true);
2533 * @brief Processes incoming sharing notification
2535 * @param array $importer Array of the importer user
2536 * @param object $data The message object
2538 * @return bool Success
2540 private static function receiveContactRequest($importer, $data)
2542 $author = unxmlify($data->author);
2543 $recipient = unxmlify($data->recipient);
2545 if (!$author || !$recipient) {
2549 // the current protocol version doesn't know these fields
2550 // That means that we will assume their existance
2551 if (isset($data->following)) {
2552 $following = (unxmlify($data->following) == "true");
2557 if (isset($data->sharing)) {
2558 $sharing = (unxmlify($data->sharing) == "true");
2563 $contact = self::contactByHandle($importer["uid"], $author);
2565 // perhaps we were already sharing with this person. Now they're sharing with us.
2566 // That makes us friends.
2569 logger("Author ".$author." (Contact ".$contact["id"].") wants to follow us.", LOGGER_DEBUG);
2570 self::receiveRequestMakeFriend($importer, $contact);
2572 // refetch the contact array
2573 $contact = self::contactByHandle($importer["uid"], $author);
2575 // If we are now friends, we are sending a share message.
2576 // Normally we needn't to do so, but the first message could have been vanished.
2577 if (in_array($contact["rel"], [CONTACT_IS_FRIEND])) {
2578 $u = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($importer["uid"]));
2580 logger("Sending share message to author ".$author." - Contact: ".$contact["id"]." - User: ".$importer["uid"], LOGGER_DEBUG);
2581 $ret = self::sendShare($u[0], $contact);
2586 logger("Author ".$author." doesn't want to follow us anymore.", LOGGER_DEBUG);
2587 Contact::removeFollower($importer, $contact);
2592 if (!$following && $sharing && in_array($importer["page-flags"], [PAGE_SOAPBOX, PAGE_NORMAL])) {
2593 logger("Author ".$author." wants to share with us - but doesn't want to listen. Request is ignored.", LOGGER_DEBUG);
2595 } elseif (!$following && !$sharing) {
2596 logger("Author ".$author." doesn't want anything - and we don't know the author. Request is ignored.", LOGGER_DEBUG);
2598 } elseif (!$following && $sharing) {
2599 logger("Author ".$author." wants to share with us.", LOGGER_DEBUG);
2600 } elseif ($following && $sharing) {
2601 logger("Author ".$author." wants to have a bidirectional conection.", LOGGER_DEBUG);
2602 } elseif ($following && !$sharing) {
2603 logger("Author ".$author." wants to listen to us.", LOGGER_DEBUG);
2606 $ret = self::personByHandle($author);
2608 if (!$ret || ($ret["network"] != NETWORK_DIASPORA)) {
2609 logger("Cannot resolve diaspora handle ".$author." for ".$recipient);
2613 $batch = (($ret["batch"]) ? $ret["batch"] : implode("/", array_slice(explode("/", $ret["url"]), 0, 3))."/receive/public");
2616 "INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`nurl`,`batch`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
2617 VALUES (%d, '%s', '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s','%s',%d,%d)",
2618 intval($importer["uid"]),
2619 dbesc($ret["network"]),
2620 dbesc($ret["addr"]),
2621 DateTimeFormat::utcNow(),
2623 dbesc(normalise_link($ret["url"])),
2625 dbesc($ret["name"]),
2626 dbesc($ret["nick"]),
2627 dbesc($ret["photo"]),
2628 dbesc($ret["pubkey"]),
2629 dbesc($ret["notify"]),
2630 dbesc($ret["poll"]),
2635 // find the contact record we just created
2637 $contact_record = self::contactByHandle($importer["uid"], $author);
2639 if (!$contact_record) {
2640 logger("unable to locate newly created contact record.");
2644 logger("Author ".$author." was added as contact number ".$contact_record["id"].".", LOGGER_DEBUG);
2646 Group::addMember(User::getDefaultGroup($importer['uid'], $ret["network"]), $contact_record['id']);
2648 Contact::updateAvatar($ret["photo"], $importer['uid'], $contact_record["id"], true);
2650 if (in_array($importer["page-flags"], [PAGE_NORMAL, PAGE_PRVGROUP])) {
2651 logger("Sending intra message for author ".$author.".", LOGGER_DEBUG);
2653 $hash = random_string().(string)time(); // Generate a confirm_key
2656 "INSERT INTO `intro` (`uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime`)
2657 VALUES (%d, %d, %d, %d, '%s', '%s', '%s')",
2658 intval($importer["uid"]),
2659 intval($contact_record["id"]),
2662 dbesc(L10n::t("Sharing notification from Diaspora network")),
2664 dbesc(DateTimeFormat::utcNow())
2667 // automatic friend approval
2669 logger("Does an automatic friend approval for author ".$author.".", LOGGER_DEBUG);
2671 Contact::updateAvatar($contact_record["photo"], $importer["uid"], $contact_record["id"]);
2673 // technically they are sharing with us (CONTACT_IS_SHARING),
2674 // but if our page-type is PAGE_COMMUNITY or PAGE_SOAPBOX
2675 // we are going to change the relationship and make them a follower.
2677 if (($importer["page-flags"] == PAGE_FREELOVE) && $sharing && $following) {
2678 $new_relation = CONTACT_IS_FRIEND;
2679 } elseif (($importer["page-flags"] == PAGE_FREELOVE) && $sharing) {
2680 $new_relation = CONTACT_IS_SHARING;
2682 $new_relation = CONTACT_IS_FOLLOWER;
2686 "UPDATE `contact` SET `rel` = %d,
2694 intval($new_relation),
2695 dbesc(DateTimeFormat::utcNow()),
2696 dbesc(DateTimeFormat::utcNow()),
2697 intval($contact_record["id"])
2700 $u = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($importer["uid"]));
2702 logger("Sending share message (Relation: ".$new_relation.") to author ".$author." - Contact: ".$contact_record["id"]." - User: ".$importer["uid"], LOGGER_DEBUG);
2703 $ret = self::sendShare($u[0], $contact_record);
2705 // Send the profile data, maybe it weren't transmitted before
2706 self::sendProfile($importer["uid"], [$contact_record]);
2714 * @brief Fetches a message with a given guid
2716 * @param string $guid message guid
2717 * @param string $orig_author handle of the original post
2718 * @param string $author handle of the sharer
2720 * @return array The fetched item
2722 public static function originalItem($guid, $orig_author)
2724 // Do we already have this item?
2725 $fields = ['body', 'tag', 'app', 'created', 'object-type', 'uri', 'guid',
2726 'author-name', 'author-link', 'author-avatar'];
2727 $condition = ['guid' => $guid, 'visible' => true, 'deleted' => false];
2728 $item = dba::selectfirst('item', $fields, $condition);
2730 if (DBM::is_result($item)) {
2731 logger("reshared message ".$guid." already exists on system.");
2733 // Maybe it is already a reshared item?
2734 // Then refetch the content, if it is a reshare from a reshare.
2735 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2736 if (self::isReshare($item["body"], true)) {
2738 } elseif (self::isReshare($item["body"], false) || strstr($item["body"], "[share")) {
2739 $item["body"] = Markdown::toBBCode(BBCode::toMarkdown($item["body"]));
2741 $item["body"] = self::replacePeopleGuid($item["body"], $item["author-link"]);
2743 // Add OEmbed and other information to the body
2744 $item["body"] = add_page_info_to_body($item["body"], false, true);
2752 if (!DBM::is_result($r)) {
2753 $server = "https://".substr($orig_author, strpos($orig_author, "@") + 1);
2754 logger("1st try: reshared message ".$guid." will be fetched via SSL from the server ".$server);
2755 $item_id = self::storeByGuid($guid, $server);
2758 $server = "http://".substr($orig_author, strpos($orig_author, "@") + 1);
2759 logger("2nd try: reshared message ".$guid." will be fetched without SLL from the server ".$server);
2760 $item_id = self::storeByGuid($guid, $server);
2764 $fields = ['body', 'tag', 'app', 'created', 'object-type', 'uri', 'guid',
2765 'author-name', 'author-link', 'author-avatar'];
2766 $condition = ['id' => $item_id, 'visible' => true, 'deleted' => false];
2767 $item = dba::selectfirst('item', $fields, $condition);
2769 if (DBM::is_result($item)) {
2770 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2771 if (self::isReshare($item["body"], false)) {
2772 $item["body"] = Markdown::toBBCode(BBCode::toMarkdown($item["body"]));
2773 $item["body"] = self::replacePeopleGuid($item["body"], $item["author-link"]);
2784 * @brief Processes a reshare message
2786 * @param array $importer Array of the importer user
2787 * @param object $data The message object
2788 * @param string $xml The original XML of the message
2790 * @return int the message id
2792 private static function receiveReshare($importer, $data, $xml)
2794 $author = notags(unxmlify($data->author));
2795 $guid = notags(unxmlify($data->guid));
2796 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
2797 $root_author = notags(unxmlify($data->root_author));
2798 $root_guid = notags(unxmlify($data->root_guid));
2799 /// @todo handle unprocessed property "provider_display_name"
2800 $public = notags(unxmlify($data->public));
2802 $contact = self::allowedContactByHandle($importer, $author, false);
2807 $message_id = self::messageExists($importer["uid"], $guid);
2812 $original_item = self::originalItem($root_guid, $root_author);
2813 if (!$original_item) {
2817 $orig_url = System::baseUrl()."/display/".$original_item["guid"];
2821 $datarray["uid"] = $importer["uid"];
2822 $datarray["contact-id"] = $contact["id"];
2823 $datarray["network"] = NETWORK_DIASPORA;
2825 $datarray["author-name"] = $contact["name"];
2826 $datarray["author-link"] = $contact["url"];
2827 $datarray["author-avatar"] = ((x($contact, "thumb")) ? $contact["thumb"] : $contact["photo"]);
2829 $datarray["owner-name"] = $datarray["author-name"];
2830 $datarray["owner-link"] = $datarray["author-link"];
2831 $datarray["owner-avatar"] = $datarray["author-avatar"];
2833 $datarray["guid"] = $guid;
2834 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
2836 $datarray["verb"] = ACTIVITY_POST;
2837 $datarray["gravity"] = GRAVITY_PARENT;
2839 $datarray["protocol"] = PROTOCOL_DIASPORA;
2840 $datarray["source"] = $xml;
2842 $prefix = share_header(
2843 $original_item["author-name"],
2844 $original_item["author-link"],
2845 $original_item["author-avatar"],
2846 $original_item["guid"],
2847 $original_item["created"],
2850 $datarray["body"] = $prefix.$original_item["body"]."[/share]";
2852 $datarray["tag"] = $original_item["tag"];
2853 $datarray["app"] = $original_item["app"];
2855 $datarray["plink"] = self::plink($author, $guid);
2856 $datarray["private"] = (($public == "false") ? 1 : 0);
2857 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
2859 $datarray["object-type"] = $original_item["object-type"];
2861 self::fetchGuid($datarray);
2862 $message_id = Item::insert($datarray);
2864 self::sendParticipation($contact, $datarray);
2867 logger("Stored reshare ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
2868 if ($datarray['uid'] == 0) {
2869 Item::distribute($message_id);
2878 * @brief Processes retractions
2880 * @param array $importer Array of the importer user
2881 * @param array $contact The contact of the item owner
2882 * @param object $data The message object
2884 * @return bool success
2886 private static function itemRetraction($importer, $contact, $data)
2888 $author = notags(unxmlify($data->author));
2889 $target_guid = notags(unxmlify($data->target_guid));
2890 $target_type = notags(unxmlify($data->target_type));
2892 $person = self::personByHandle($author);
2893 if (!is_array($person)) {
2894 logger("unable to find author detail for ".$author);
2898 if (empty($contact["url"])) {
2899 $contact["url"] = $person["url"];
2902 // Fetch items that are about to be deleted
2903 $fields = ['uid', 'id', 'parent', 'parent-uri', 'author-link'];
2905 // When we receive a public retraction, we delete every item that we find.
2906 if ($importer['uid'] == 0) {
2907 $condition = ["`guid` = ? AND NOT `file` LIKE '%%[%%' AND NOT `deleted`", $target_guid];
2909 $condition = ["`guid` = ? AND `uid` = ? AND NOT `file` LIKE '%%[%%' AND NOT `deleted`", $target_guid, $importer['uid']];
2911 $r = dba::select('item', $fields, $condition);
2912 if (!DBM::is_result($r)) {
2913 logger("Target guid ".$target_guid." was not found on this system for user ".$importer['uid'].".");
2917 while ($item = dba::fetch($r)) {
2918 // Fetch the parent item
2919 $parent = dba::selectFirst('item', ['author-link', 'origin'], ['id' => $item["parent"]]);
2921 // Only delete it if the parent author really fits
2922 if (!link_compare($parent["author-link"], $contact["url"]) && !link_compare($item["author-link"], $contact["url"])) {
2923 logger("Thread author ".$parent["author-link"]." and item author ".$item["author-link"]." don't fit to expected contact ".$contact["url"], LOGGER_DEBUG);
2927 Item::deleteById($item["id"]);
2929 logger("Deleted target ".$target_guid." (".$item["id"].") from user ".$item["uid"]." parent: ".$item["parent"], LOGGER_DEBUG);
2931 // Now check if the retraction needs to be relayed by us
2932 if ($parent["origin"]) {
2934 Worker::add(PRIORITY_HIGH, "Notifier", "drop", $item["id"]);
2942 * @brief Receives retraction messages
2944 * @param array $importer Array of the importer user
2945 * @param string $sender The sender of the message
2946 * @param object $data The message object
2948 * @return bool Success
2950 private static function receiveRetraction($importer, $sender, $data)
2952 $target_type = notags(unxmlify($data->target_type));
2954 $contact = self::contactByHandle($importer["uid"], $sender);
2955 if (!$contact && (in_array($target_type, ["Contact", "Person"]))) {
2956 logger("cannot find contact for sender: ".$sender." and user ".$importer["uid"]);
2960 logger("Got retraction for ".$target_type.", sender ".$sender." and user ".$importer["uid"], LOGGER_DEBUG);
2962 switch ($target_type) {
2967 case "StatusMessage":
2968 return self::itemRetraction($importer, $contact, $data);
2972 /// @todo What should we do with an "unshare"?
2973 // Removing the contact isn't correct since we still can read the public items
2974 Contact::remove($contact["id"]);
2978 logger("Unknown target type ".$target_type);
2985 * @brief Receives status messages
2987 * @param array $importer Array of the importer user
2988 * @param object $data The message object
2989 * @param string $xml The original XML of the message
2991 * @return int The message id of the newly created item
2993 private static function receiveStatusMessage($importer, $data, $xml)
2995 $author = notags(unxmlify($data->author));
2996 $guid = notags(unxmlify($data->guid));
2997 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
2998 $public = notags(unxmlify($data->public));
2999 $text = unxmlify($data->text);
3000 $provider_display_name = notags(unxmlify($data->provider_display_name));
3002 $contact = self::allowedContactByHandle($importer, $author, false);
3007 $message_id = self::messageExists($importer["uid"], $guid);
3013 if ($data->location) {
3014 foreach ($data->location->children() as $fieldname => $data) {
3015 $address[$fieldname] = notags(unxmlify($data));
3019 $body = Markdown::toBBCode($text);
3023 // Attach embedded pictures to the body
3025 foreach ($data->photo as $photo) {
3026 $body = "[img]".unxmlify($photo->remote_photo_path).
3027 unxmlify($photo->remote_photo_name)."[/img]\n".$body;
3030 $datarray["object-type"] = ACTIVITY_OBJ_IMAGE;
3032 $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
3034 // Add OEmbed and other information to the body
3035 if (!self::isRedmatrix($contact["url"])) {
3036 $body = add_page_info_to_body($body, false, true);
3040 /// @todo enable support for polls
3041 //if ($data->poll) {
3042 // foreach ($data->poll AS $poll)
3047 /// @todo enable support for events
3049 $datarray["uid"] = $importer["uid"];
3050 $datarray["contact-id"] = $contact["id"];
3051 $datarray["network"] = NETWORK_DIASPORA;
3053 $datarray["author-name"] = $contact["name"];
3054 $datarray["author-link"] = $contact["url"];
3055 $datarray["author-avatar"] = ((x($contact, "thumb")) ? $contact["thumb"] : $contact["photo"]);
3057 $datarray["owner-name"] = $datarray["author-name"];
3058 $datarray["owner-link"] = $datarray["author-link"];
3059 $datarray["owner-avatar"] = $datarray["author-avatar"];
3061 $datarray["guid"] = $guid;
3062 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
3064 $datarray["verb"] = ACTIVITY_POST;
3065 $datarray["gravity"] = GRAVITY_PARENT;
3067 $datarray["protocol"] = PROTOCOL_DIASPORA;
3068 $datarray["source"] = $xml;
3070 $datarray["body"] = self::replacePeopleGuid($body, $contact["url"]);
3072 if ($provider_display_name != "") {
3073 $datarray["app"] = $provider_display_name;
3076 $datarray["plink"] = self::plink($author, $guid);
3077 $datarray["private"] = (($public == "false") ? 1 : 0);
3078 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
3080 if (isset($address["address"])) {
3081 $datarray["location"] = $address["address"];
3084 if (isset($address["lat"]) && isset($address["lng"])) {
3085 $datarray["coord"] = $address["lat"]." ".$address["lng"];
3088 self::fetchGuid($datarray);
3089 $message_id = Item::insert($datarray);
3091 self::sendParticipation($contact, $datarray);
3094 logger("Stored item ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
3095 if ($datarray['uid'] == 0) {
3096 Item::distribute($message_id);
3104 /* ************************************************************************************** *
3105 * Here are all the functions that are needed to transmit data with the Diaspora protocol *
3106 * ************************************************************************************** */
3109 * @brief returnes the handle of a contact
3111 * @param array $contact contact array
3113 * @return string the handle in the format user@domain.tld
3115 private static function myHandle($contact)
3117 if ($contact["addr"] != "") {
3118 return $contact["addr"];
3121 // Normally we should have a filled "addr" field - but in the past this wasn't the case
3122 // So - just in case - we build the the address here.
3123 if ($contact["nickname"] != "") {
3124 $nick = $contact["nickname"];
3126 $nick = $contact["nick"];
3129 return $nick."@".substr(System::baseUrl(), strpos(System::baseUrl(), "://") + 3);
3134 * @brief Creates the data for a private message in the new format
3136 * @param string $msg The message that is to be transmitted
3137 * @param array $user The record of the sender
3138 * @param array $contact Target of the communication
3139 * @param string $prvkey The private key of the sender
3140 * @param string $pubkey The public key of the receiver
3142 * @return string The encrypted data
3144 public static function encodePrivateData($msg, $user, $contact, $prvkey, $pubkey)
3146 logger("Message: ".$msg, LOGGER_DATA);
3148 // without a public key nothing will work
3150 logger("pubkey missing: contact id: ".$contact["id"]);
3154 $aes_key = openssl_random_pseudo_bytes(32);
3155 $b_aes_key = base64_encode($aes_key);
3156 $iv = openssl_random_pseudo_bytes(16);
3157 $b_iv = base64_encode($iv);
3159 $ciphertext = self::aesEncrypt($aes_key, $iv, $msg);
3161 $json = json_encode(["iv" => $b_iv, "key" => $b_aes_key]);
3163 $encrypted_key_bundle = "";
3164 openssl_public_encrypt($json, $encrypted_key_bundle, $pubkey);
3166 $json_object = json_encode(
3167 ["aes_key" => base64_encode($encrypted_key_bundle),
3168 "encrypted_magic_envelope" => base64_encode($ciphertext)]
3171 return $json_object;
3175 * @brief Creates the envelope for the "fetch" endpoint and for the new format
3177 * @param string $msg The message that is to be transmitted
3178 * @param array $user The record of the sender
3180 * @return string The envelope
3182 public static function buildMagicEnvelope($msg, $user)
3184 $b64url_data = base64url_encode($msg);
3185 $data = str_replace(["\n", "\r", " ", "\t"], ["", "", "", ""], $b64url_data);
3187 $key_id = base64url_encode(self::myHandle($user));
3188 $type = "application/xml";
3189 $encoding = "base64url";
3190 $alg = "RSA-SHA256";
3191 $signable_data = $data.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
3193 // Fallback if the private key wasn't transmitted in the expected field
3194 if ($user['uprvkey'] == "") {
3195 $user['uprvkey'] = $user['prvkey'];
3198 $signature = Crypto::rsaSign($signable_data, $user["uprvkey"]);
3199 $sig = base64url_encode($signature);
3201 $xmldata = ["me:env" => ["me:data" => $data,
3202 "@attributes" => ["type" => $type],
3203 "me:encoding" => $encoding,
3206 "@attributes2" => ["key_id" => $key_id]]];
3208 $namespaces = ["me" => "http://salmon-protocol.org/ns/magic-env"];
3210 return XML::fromArray($xmldata, $xml, false, $namespaces);
3214 * @brief Create the envelope for a message
3216 * @param string $msg The message that is to be transmitted
3217 * @param array $user The record of the sender
3218 * @param array $contact Target of the communication
3219 * @param string $prvkey The private key of the sender
3220 * @param string $pubkey The public key of the receiver
3221 * @param bool $public Is the message public?
3223 * @return string The message that will be transmitted to other servers
3225 public static function buildMessage($msg, $user, $contact, $prvkey, $pubkey, $public = false)
3227 // The message is put into an envelope with the sender's signature
3228 $envelope = self::buildMagicEnvelope($msg, $user);
3230 // Private messages are put into a second envelope, encrypted with the receivers public key
3232 $envelope = self::encodePrivateData($envelope, $user, $contact, $prvkey, $pubkey);
3239 * @brief Creates a signature for a message
3241 * @param array $owner the array of the owner of the message
3242 * @param array $message The message that is to be signed
3244 * @return string The signature
3246 private static function signature($owner, $message)
3249 unset($sigmsg["author_signature"]);
3250 unset($sigmsg["parent_author_signature"]);
3252 $signed_text = implode(";", $sigmsg);
3254 return base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3258 * @brief Transmit a message to a target server
3260 * @param array $owner the array of the item owner
3261 * @param array $contact Target of the communication
3262 * @param string $envelope The message that is to be transmitted
3263 * @param bool $public_batch Is it a public post?
3264 * @param bool $queue_run Is the transmission called from the queue?
3265 * @param string $guid message guid
3267 * @return int Result of the transmission
3269 public static function transmit($owner, $contact, $envelope, $public_batch, $queue_run = false, $guid = "", $no_queue = false)
3273 $enabled = intval(Config::get("system", "diaspora_enabled"));
3278 $logid = random_string(4);
3280 $dest_url = ($public_batch ? $contact["batch"] : $contact["notify"]);
3282 // We always try to use the data from the fcontact table.
3283 // This is important for transmitting data to Friendica servers.
3284 if (!empty($contact['addr'])) {
3285 $fcontact = self::personByHandle($contact['addr']);
3286 if (!empty($fcontact)) {
3287 $dest_url = ($public_batch ? $fcontact["batch"] : $fcontact["notify"]);
3292 logger("no url for contact: ".$contact["id"]." batch mode =".$public_batch);
3296 logger("transmit: ".$logid."-".$guid." ".$dest_url);
3298 if (!$queue_run && Queue::wasDelayed($contact["id"])) {
3301 if (!intval(Config::get("system", "diaspora_test"))) {
3302 $content_type = (($public_batch) ? "application/magic-envelope+xml" : "application/json");
3304 Network::post($dest_url."/", $envelope, ["Content-Type: ".$content_type]);
3305 $return_code = $a->get_curl_code();
3307 logger("test_mode");
3312 logger("transmit: ".$logid."-".$guid." to ".$dest_url." returns: ".$return_code);
3314 if (!$return_code || (($return_code == 503) && (stristr($a->get_curl_headers(), "retry-after")))) {
3315 if (!$no_queue && ($contact['contact-type'] != ACCOUNT_TYPE_RELAY)) {
3316 logger("queue message");
3317 // queue message for redelivery
3318 Queue::add($contact["id"], NETWORK_DIASPORA, $envelope, $public_batch, $guid);
3321 // The message could not be delivered. We mark the contact as "dead"
3322 Contact::markForArchival($contact);
3323 } elseif (($return_code >= 200) && ($return_code <= 299)) {
3324 // We successfully delivered a message, the contact is alive
3325 Contact::unmarkForArchival($contact);
3328 return $return_code ? $return_code : -1;
3333 * @brief Build the post xml
3335 * @param string $type The message type
3336 * @param array $message The message data
3338 * @return string The post XML
3340 public static function buildPostXml($type, $message)
3342 $data = [$type => $message];
3344 return XML::fromArray($data, $xml);
3348 * @brief Builds and transmit messages
3350 * @param array $owner the array of the item owner
3351 * @param array $contact Target of the communication
3352 * @param string $type The message type
3353 * @param array $message The message data
3354 * @param bool $public_batch Is it a public post?
3355 * @param string $guid message guid
3356 * @param bool $spool Should the transmission be spooled or transmitted?
3358 * @return int Result of the transmission
3360 private static function buildAndTransmit($owner, $contact, $type, $message, $public_batch = false, $guid = "", $spool = false)
3362 $msg = self::buildPostXml($type, $message);
3364 logger('message: '.$msg, LOGGER_DATA);
3365 logger('send guid '.$guid, LOGGER_DEBUG);
3367 // Fallback if the private key wasn't transmitted in the expected field
3368 if ($owner['uprvkey'] == "") {
3369 $owner['uprvkey'] = $owner['prvkey'];
3372 $envelope = self::buildMessage($msg, $owner, $contact, $owner['uprvkey'], $contact['pubkey'], $public_batch);
3375 Queue::add($contact['id'], NETWORK_DIASPORA, $envelope, $public_batch, $guid);
3378 $return_code = self::transmit($owner, $contact, $envelope, $public_batch, false, $guid);
3381 logger("guid: ".$guid." result ".$return_code, LOGGER_DEBUG);
3383 return $return_code;
3387 * @brief sends a participation (Used to get all further updates)
3389 * @param array $contact Target of the communication
3390 * @param array $item Item array
3392 * @return int The result of the transmission
3394 private static function sendParticipation($contact, $item)
3396 // Don't send notifications for private postings
3397 if ($item['private']) {
3401 $cachekey = "diaspora:sendParticipation:".$item['guid'];
3403 $result = Cache::get($cachekey);
3404 if (!is_null($result)) {
3408 // Fetch some user id to have a valid handle to transmit the participation.
3409 // In fact it doesn't matter which user sends this - but it is needed by the protocol.
3410 // If the item belongs to a user, we take this user id.
3411 if ($item['uid'] == 0) {
3412 $condition = ['verified' => true, 'blocked' => false, 'account_removed' => false, 'account_expired' => false];
3413 $first_user = dba::selectFirst('user', ['uid'], $condition);
3414 $owner = User::getOwnerDataById($first_user['uid']);
3416 $owner = User::getOwnerDataById($item['uid']);
3419 $author = self::myHandle($owner);
3421 $message = ["author" => $author,
3422 "guid" => get_guid(32),
3423 "parent_type" => "Post",
3424 "parent_guid" => $item["guid"]];
3426 logger("Send participation for ".$item["guid"]." by ".$author, LOGGER_DEBUG);
3428 // It doesn't matter what we store, we only want to avoid sending repeated notifications for the same item
3429 Cache::set($cachekey, $item["guid"], CACHE_QUARTER_HOUR);
3431 return self::buildAndTransmit($owner, $contact, "participation", $message);
3435 * @brief sends an account migration
3437 * @param array $owner the array of the item owner
3438 * @param array $contact Target of the communication
3439 * @param int $uid User ID
3441 * @return int The result of the transmission
3443 public static function sendAccountMigration($owner, $contact, $uid)
3445 $old_handle = PConfig::get($uid, 'system', 'previous_addr');
3446 $profile = self::createProfileData($uid);
3448 $signed_text = 'AccountMigration:'.$old_handle.':'.$profile['author'];
3449 $signature = base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3451 $message = ["author" => $old_handle,
3452 "profile" => $profile,
3453 "signature" => $signature];
3455 logger("Send account migration ".print_r($message, true), LOGGER_DEBUG);
3457 return self::buildAndTransmit($owner, $contact, "account_migration", $message);
3461 * @brief Sends a "share" message
3463 * @param array $owner the array of the item owner
3464 * @param array $contact Target of the communication
3466 * @return int The result of the transmission
3468 public static function sendShare($owner, $contact)
3471 * @todo support the different possible combinations of "following" and "sharing"
3472 * Currently, Diaspora only interprets the "sharing" field
3474 * Before switching this code productive, we have to check all "sendShare" calls if "rel" is set correctly
3478 switch ($contact["rel"]) {
3479 case CONTACT_IS_FRIEND:
3482 case CONTACT_IS_SHARING:
3485 case CONTACT_IS_FOLLOWER:
3491 $message = ["author" => self::myHandle($owner),
3492 "recipient" => $contact["addr"],
3493 "following" => "true",
3494 "sharing" => "true"];
3496 logger("Send share ".print_r($message, true), LOGGER_DEBUG);
3498 return self::buildAndTransmit($owner, $contact, "contact", $message);
3502 * @brief sends an "unshare"
3504 * @param array $owner the array of the item owner
3505 * @param array $contact Target of the communication
3507 * @return int The result of the transmission
3509 public static function sendUnshare($owner, $contact)
3511 $message = ["author" => self::myHandle($owner),
3512 "recipient" => $contact["addr"],
3513 "following" => "false",
3514 "sharing" => "false"];
3516 logger("Send unshare ".print_r($message, true), LOGGER_DEBUG);
3518 return self::buildAndTransmit($owner, $contact, "contact", $message);
3522 * @brief Checks a message body if it is a reshare
3524 * @param string $body The message body that is to be check
3525 * @param bool $complete Should it be a complete check or a simple check?
3527 * @return array|bool Reshare details or "false" if no reshare
3529 public static function isReshare($body, $complete = true)
3531 $body = trim($body);
3533 // Skip if it isn't a pure repeated messages
3534 // Does it start with a share?
3535 if ((strpos($body, "[share") > 0) && $complete) {
3539 // Does it end with a share?
3540 if (strlen($body) > (strrpos($body, "[/share]") + 8)) {
3544 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", "$1", $body);
3545 // Skip if there is no shared message in there
3546 if ($body == $attributes) {
3550 // If we don't do the complete check we quit here
3553 preg_match("/guid='(.*?)'/ism", $attributes, $matches);
3554 if ($matches[1] != "") {
3555 $guid = $matches[1];
3558 preg_match('/guid="(.*?)"/ism', $attributes, $matches);
3559 if ($matches[1] != "") {
3560 $guid = $matches[1];
3563 if (($guid != "") && $complete) {
3564 $condition = ['guid' => $guid, 'network' => [NETWORK_DFRN, NETWORK_DIASPORA]];
3565 $item = dba::selectFirst('item', ['contact-id'], $condition);
3566 if (DBM::is_result($item)) {
3568 $ret["root_handle"] = self::handleFromContact($item["contact-id"]);
3569 $ret["root_guid"] = $guid;
3575 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
3576 if ($matches[1] != "") {
3577 $profile = $matches[1];
3580 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
3581 if ($matches[1] != "") {
3582 $profile = $matches[1];
3587 if ($profile != "") {
3588 if (Contact::getIdForURL($profile)) {
3589 $author = Contact::getDetailsByURL($profile);
3590 $ret["root_handle"] = $author['addr'];
3594 if (!empty($guid)) {
3595 $ret["root_guid"] = $guid;
3598 if (empty($ret) && !$complete) {
3606 * @brief Create an event array
3608 * @param integer $event_id The id of the event
3610 * @return array with event data
3612 private static function buildEvent($event_id)
3614 $r = q("SELECT `guid`, `uid`, `start`, `finish`, `nofinish`, `summary`, `desc`, `location`, `adjust` FROM `event` WHERE `id` = %d", intval($event_id));
3615 if (!DBM::is_result($r)) {
3623 $r = q("SELECT `timezone` FROM `user` WHERE `uid` = %d", intval($event['uid']));
3624 if (!DBM::is_result($r)) {
3630 $r = q("SELECT `addr`, `nick` FROM `contact` WHERE `uid` = %d AND `self`", intval($event['uid']));
3631 if (!DBM::is_result($r)) {
3637 $eventdata['author'] = self::myHandle($owner);
3639 if ($event['guid']) {
3640 $eventdata['guid'] = $event['guid'];
3643 $mask = DateTimeFormat::ATOM;
3645 /// @todo - establish "all day" events in Friendica
3646 $eventdata["all_day"] = "false";
3648 if (!$event['adjust']) {
3649 $eventdata['timezone'] = $user['timezone'];
3651 if ($eventdata['timezone'] == "") {
3652 $eventdata['timezone'] = 'UTC';
3656 if ($event['start']) {
3657 $eventdata['start'] = DateTimeFormat::convert($event['start'], "UTC", $eventdata['timezone'], $mask);
3659 if ($event['finish'] && !$event['nofinish']) {
3660 $eventdata['end'] = DateTimeFormat::convert($event['finish'], "UTC", $eventdata['timezone'], $mask);
3662 if ($event['summary']) {
3663 $eventdata['summary'] = html_entity_decode(BBCode::toMarkdown($event['summary']));
3665 if ($event['desc']) {
3666 $eventdata['description'] = html_entity_decode(BBCode::toMarkdown($event['desc']));
3668 if ($event['location']) {
3669 $event['location'] = preg_replace("/\[map\](.*?)\[\/map\]/ism", '$1', $event['location']);
3670 $coord = Map::getCoordinates($event['location']);
3673 $location["address"] = html_entity_decode(BBCode::toMarkdown($event['location']));
3674 if (!empty($coord['lat']) && !empty($coord['lon'])) {
3675 $location["lat"] = $coord['lat'];
3676 $location["lng"] = $coord['lon'];
3678 $location["lat"] = 0;
3679 $location["lng"] = 0;
3681 $eventdata['location'] = $location;
3688 * @brief Create a post (status message or reshare)
3690 * @param array $item The item that will be exported
3691 * @param array $owner the array of the item owner
3694 * 'type' -> Message type ("status_message" or "reshare")
3695 * 'message' -> Array of XML elements of the status
3697 public static function buildStatus($item, $owner)
3699 $cachekey = "diaspora:buildStatus:".$item['guid'];
3701 $result = Cache::get($cachekey);
3702 if (!is_null($result)) {
3706 $myaddr = self::myHandle($owner);
3708 $public = (($item["private"]) ? "false" : "true");
3710 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
3712 // Detect a share element and do a reshare
3713 if (!$item['private'] && ($ret = self::isReshare($item["body"]))) {
3714 $message = ["author" => $myaddr,
3715 "guid" => $item["guid"],
3716 "created_at" => $created,
3717 "root_author" => $ret["root_handle"],
3718 "root_guid" => $ret["root_guid"],
3719 "provider_display_name" => $item["app"],
3720 "public" => $public];
3724 $title = $item["title"];
3725 $body = $item["body"];
3727 if ($item['author-link'] != $item['owner-link']) {
3728 require_once 'mod/share.php';
3729 $body = share_header($item['author-name'], $item['author-link'], $item['author-avatar'],
3730 "", $item['created'], $item['plink']) . $body . '[/share]';
3733 // convert to markdown
3734 $body = html_entity_decode(BBCode::toMarkdown($body));
3737 if (strlen($title)) {
3738 $body = "## ".html_entity_decode($title)."\n\n".$body;
3741 if ($item["attach"]) {
3742 $cnt = preg_match_all('/href=\"(.*?)\"(.*?)title=\"(.*?)\"/ism', $item["attach"], $matches, PREG_SET_ORDER);
3744 $body .= "\n".L10n::t("Attachments:")."\n";
3745 foreach ($matches as $mtch) {
3746 $body .= "[".$mtch[3]."](".$mtch[1].")\n";
3753 if ($item["location"] != "")
3754 $location["address"] = $item["location"];
3756 if ($item["coord"] != "") {
3757 $coord = explode(" ", $item["coord"]);
3758 $location["lat"] = $coord[0];
3759 $location["lng"] = $coord[1];
3762 $message = ["author" => $myaddr,
3763 "guid" => $item["guid"],
3764 "created_at" => $created,
3765 "public" => $public,
3767 "provider_display_name" => $item["app"],
3768 "location" => $location];
3770 // Diaspora rejects messages when they contain a location without "lat" or "lng"
3771 if (!isset($location["lat"]) || !isset($location["lng"])) {
3772 unset($message["location"]);
3775 if ($item['event-id'] > 0) {
3776 $event = self::buildEvent($item['event-id']);
3777 if (count($event)) {
3778 $message['event'] = $event;
3780 if (!empty($event['location']['address']) &&
3781 !empty($event['location']['lat']) &&
3782 !empty($event['location']['lng'])) {
3783 $message['location'] = $event['location'];
3786 /// @todo Once Diaspora supports it, we will remove the body and the location hack above
3787 // $message['text'] = '';
3791 $type = "status_message";
3794 $msg = ["type" => $type, "message" => $message];
3796 Cache::set($cachekey, $msg, CACHE_QUARTER_HOUR);
3802 * @brief Sends a post
3804 * @param array $item The item that will be exported
3805 * @param array $owner the array of the item owner
3806 * @param array $contact Target of the communication
3807 * @param bool $public_batch Is it a public post?
3809 * @return int The result of the transmission
3811 public static function sendStatus($item, $owner, $contact, $public_batch = false)
3813 $status = self::buildStatus($item, $owner);
3815 return self::buildAndTransmit($owner, $contact, $status["type"], $status["message"], $public_batch, $item["guid"]);
3819 * @brief Creates a "like" object
3821 * @param array $item The item that will be exported
3822 * @param array $owner the array of the item owner
3824 * @return array The data for a "like"
3826 private static function constructLike($item, $owner)
3829 "SELECT `guid`, `uri`, `parent-uri` FROM `item` WHERE `uri` = '%s' LIMIT 1",
3830 dbesc($item["thr-parent"])
3832 if (!DBM::is_result($p)) {
3838 $target_type = ($parent["uri"] === $parent["parent-uri"] ? "Post" : "Comment");
3840 if ($item['verb'] === ACTIVITY_LIKE) {
3842 } elseif ($item['verb'] === ACTIVITY_DISLIKE) {
3843 $positive = "false";
3846 return(["author" => self::myHandle($owner),
3847 "guid" => $item["guid"],
3848 "parent_guid" => $parent["guid"],
3849 "parent_type" => $target_type,
3850 "positive" => $positive,
3851 "author_signature" => ""]);
3855 * @brief Creates an "EventParticipation" object
3857 * @param array $item The item that will be exported
3858 * @param array $owner the array of the item owner
3860 * @return array The data for an "EventParticipation"
3862 private static function constructAttend($item, $owner)
3865 "SELECT `guid`, `uri`, `parent-uri` FROM `item` WHERE `uri` = '%s' LIMIT 1",
3866 dbesc($item["thr-parent"])
3868 if (!DBM::is_result($p)) {
3874 switch ($item['verb']) {
3875 case ACTIVITY_ATTEND:
3876 $attend_answer = 'accepted';
3878 case ACTIVITY_ATTENDNO:
3879 $attend_answer = 'declined';
3881 case ACTIVITY_ATTENDMAYBE:
3882 $attend_answer = 'tentative';
3885 logger('Unknown verb '.$item['verb'].' in item '.$item['guid']);
3889 return(["author" => self::myHandle($owner),
3890 "guid" => $item["guid"],
3891 "parent_guid" => $parent["guid"],
3892 "status" => $attend_answer,
3893 "author_signature" => ""]);
3897 * @brief Creates the object for a comment
3899 * @param array $item The item that will be exported
3900 * @param array $owner the array of the item owner
3902 * @return array The data for a comment
3904 private static function constructComment($item, $owner)
3906 $cachekey = "diaspora:constructComment:".$item['guid'];
3908 $result = Cache::get($cachekey);
3909 if (!is_null($result)) {
3914 "SELECT `guid` FROM `item` WHERE `parent` = %d AND `id` = %d LIMIT 1",
3915 intval($item["parent"]),
3916 intval($item["parent"])
3919 if (!DBM::is_result($p)) {
3925 $text = html_entity_decode(BBCode::toMarkdown($item["body"]));
3926 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
3928 $comment = ["author" => self::myHandle($owner),
3929 "guid" => $item["guid"],
3930 "created_at" => $created,
3931 "parent_guid" => $parent["guid"],
3933 "author_signature" => ""];
3935 // Send the thread parent guid only if it is a threaded comment
3936 if ($item['thr-parent'] != $item['parent-uri']) {
3937 $comment['thread_parent_guid'] = self::getGuidFromUri($item['thr-parent'], $item['uid']);
3940 Cache::set($cachekey, $comment, CACHE_QUARTER_HOUR);
3946 * @brief Send a like or a comment
3948 * @param array $item The item that will be exported
3949 * @param array $owner the array of the item owner
3950 * @param array $contact Target of the communication
3951 * @param bool $public_batch Is it a public post?
3953 * @return int The result of the transmission
3955 public static function sendFollowup($item, $owner, $contact, $public_batch = false)
3957 if (in_array($item['verb'], [ACTIVITY_ATTEND, ACTIVITY_ATTENDNO, ACTIVITY_ATTENDMAYBE])) {
3958 $message = self::constructAttend($item, $owner);
3959 $type = "event_participation";
3960 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3961 $message = self::constructLike($item, $owner);
3964 $message = self::constructComment($item, $owner);
3972 $message["author_signature"] = self::signature($owner, $message);
3974 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
3978 * @brief Creates a message from a signature record entry
3980 * @param array $item The item that will be exported
3981 * @param array $signature The entry of the "sign" record
3983 * @return string The message
3985 private static function messageFromSignature($item, $signature)
3987 // Split the signed text
3988 $signed_parts = explode(";", $signature['signed_text']);
3990 if ($item["deleted"]) {
3991 $message = ["author" => $signature['signer'],
3992 "target_guid" => $signed_parts[0],
3993 "target_type" => $signed_parts[1]];
3994 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3995 $message = ["author" => $signed_parts[4],
3996 "guid" => $signed_parts[1],
3997 "parent_guid" => $signed_parts[3],
3998 "parent_type" => $signed_parts[2],
3999 "positive" => $signed_parts[0],
4000 "author_signature" => $signature['signature'],
4001 "parent_author_signature" => ""];
4003 // Remove the comment guid
4004 $guid = array_shift($signed_parts);
4006 // Remove the parent guid
4007 $parent_guid = array_shift($signed_parts);
4009 // Remove the handle
4010 $handle = array_pop($signed_parts);
4012 // Glue the parts together
4013 $text = implode(";", $signed_parts);
4015 $message = ["author" => $handle,
4017 "parent_guid" => $parent_guid,
4018 "text" => implode(";", $signed_parts),
4019 "author_signature" => $signature['signature'],
4020 "parent_author_signature" => ""];
4026 * @brief Relays messages (like, comment, retraction) to other servers if we are the thread owner
4028 * @param array $item The item that will be exported
4029 * @param array $owner the array of the item owner
4030 * @param array $contact Target of the communication
4031 * @param bool $public_batch Is it a public post?
4033 * @return int The result of the transmission
4035 public static function sendRelay($item, $owner, $contact, $public_batch = false)
4037 if ($item["deleted"]) {
4038 return self::sendRetraction($item, $owner, $contact, $public_batch, true);
4039 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4045 logger("Got relayable data ".$type." for item ".$item["guid"]." (".$item["id"].")", LOGGER_DEBUG);
4047 // fetch the original signature
4050 "SELECT `signed_text`, `signature`, `signer` FROM `sign` WHERE `iid` = %d LIMIT 1",
4055 logger("Couldn't fetch signatur for item ".$item["guid"]." (".$item["id"].")", LOGGER_DEBUG);
4061 // Old way - is used by the internal Friendica functions
4062 /// @todo Change all signatur storing functions to the new format
4063 if ($signature['signed_text'] && $signature['signature'] && $signature['signer']) {
4064 $message = self::messageFromSignature($item, $signature);
4066 $msg = json_decode($signature['signed_text'], true);
4069 if (is_array($msg)) {
4070 foreach ($msg as $field => $data) {
4071 if (!$item["deleted"]) {
4072 if ($field == "diaspora_handle") {
4075 if ($field == "target_type") {
4076 $field = "parent_type";
4080 $message[$field] = $data;
4083 logger("Signature text for item ".$item["guid"]." (".$item["id"].") couldn't be extracted: ".$signature['signed_text'], LOGGER_DEBUG);
4087 $message["parent_author_signature"] = self::signature($owner, $message);
4089 logger("Relayed data ".print_r($message, true), LOGGER_DEBUG);
4091 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
4095 * @brief Sends a retraction (deletion) of a message, like or comment
4097 * @param array $item The item that will be exported
4098 * @param array $owner the array of the item owner
4099 * @param array $contact Target of the communication
4100 * @param bool $public_batch Is it a public post?
4101 * @param bool $relay Is the retraction transmitted from a relay?
4103 * @return int The result of the transmission
4105 public static function sendRetraction($item, $owner, $contact, $public_batch = false, $relay = false)
4107 $itemaddr = self::handleFromContact($item["contact-id"], $item["author-id"]);
4109 $msg_type = "retraction";
4111 if ($item['id'] == $item['parent']) {
4112 $target_type = "Post";
4113 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4114 $target_type = "Like";
4116 $target_type = "Comment";
4119 $message = ["author" => $itemaddr,
4120 "target_guid" => $item['guid'],
4121 "target_type" => $target_type];
4123 logger("Got message ".print_r($message, true), LOGGER_DEBUG);
4125 return self::buildAndTransmit($owner, $contact, $msg_type, $message, $public_batch, $item["guid"]);
4129 * @brief Sends a mail
4131 * @param array $item The item that will be exported
4132 * @param array $owner The owner
4133 * @param array $contact Target of the communication
4135 * @return int The result of the transmission
4137 public static function sendMail($item, $owner, $contact)
4139 $myaddr = self::myHandle($owner);
4142 "SELECT * FROM `conv` WHERE `id` = %d AND `uid` = %d LIMIT 1",
4143 intval($item["convid"]),
4144 intval($item["uid"])
4147 if (!DBM::is_result($r)) {
4148 logger("conversation not found.");
4154 "author" => $cnv["creator"],
4155 "guid" => $cnv["guid"],
4156 "subject" => $cnv["subject"],
4157 "created_at" => DateTimeFormat::utc($cnv['created'], DateTimeFormat::ATOM),
4158 "participants" => $cnv["recips"]
4161 $body = BBCode::toMarkdown($item["body"]);
4162 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
4165 "author" => $myaddr,
4166 "guid" => $item["guid"],
4167 "conversation_guid" => $cnv["guid"],
4169 "created_at" => $created,
4172 if ($item["reply"]) {
4177 "author" => $cnv["creator"],
4178 "guid" => $cnv["guid"],
4179 "subject" => $cnv["subject"],
4180 "created_at" => DateTimeFormat::utc($cnv['created'], DateTimeFormat::ATOM),
4181 "participants" => $cnv["recips"],
4184 $type = "conversation";
4187 return self::buildAndTransmit($owner, $contact, $type, $message, false, $item["guid"]);
4191 * @brief Split a name into first name and last name
4193 * @param string $name The name
4195 * @return array The array with "first" and "last"
4197 public static function splitName($name) {
4198 $name = trim($name);
4200 // Is the name longer than 64 characters? Then cut the rest of it.
4201 if (strlen($name) > 64) {
4202 if ((strpos($name, ' ') <= 64) && (strpos($name, ' ') !== false)) {
4203 $name = trim(substr($name, 0, strrpos(substr($name, 0, 65), ' ')));
4205 $name = substr($name, 0, 64);
4209 // Take the first word as first name
4210 $first = ((strpos($name, ' ') ? trim(substr($name, 0, strpos($name, ' '))) : $name));
4211 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4212 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4213 return ['first' => $first, 'last' => $last];
4216 // Take the last word as last name
4217 $first = ((strrpos($name, ' ') ? trim(substr($name, 0, strrpos($name, ' '))) : $name));
4218 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4220 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4221 return ['first' => $first, 'last' => $last];
4224 // Take the first 32 characters if there is no space in the first 32 characters
4225 if ((strpos($name, ' ') > 32) || (strpos($name, ' ') === false)) {
4226 $first = substr($name, 0, 32);
4227 $last = substr($name, 32);
4228 return ['first' => $first, 'last' => $last];
4231 $first = trim(substr($name, 0, strrpos(substr($name, 0, 33), ' ')));
4232 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4234 // Check if the last name is longer than 32 characters
4235 if (strlen($last) > 32) {
4236 if (strpos($last, ' ') <= 32) {
4237 $last = trim(substr($last, 0, strrpos(substr($last, 0, 33), ' ')));
4239 $last = substr($last, 0, 32);
4243 return ['first' => $first, 'last' => $last];
4247 * @brief Create profile data
4249 * @param int $uid The user id
4251 * @return array The profile data
4253 private static function createProfileData($uid)
4256 "SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.*, `user`.`prvkey` AS `uprvkey`, `contact`.`addr`
4258 INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
4259 INNER JOIN `contact` ON `profile`.`uid` = `contact`.`uid`
4260 WHERE `user`.`uid` = %d AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
4269 $handle = $profile["addr"];
4271 $split_name = self::splitName($profile['name']);
4272 $first = $split_name['first'];
4273 $last = $split_name['last'];
4275 $large = System::baseUrl().'/photo/custom/300/'.$profile['uid'].'.jpg';
4276 $medium = System::baseUrl().'/photo/custom/100/'.$profile['uid'].'.jpg';
4277 $small = System::baseUrl().'/photo/custom/50/' .$profile['uid'].'.jpg';
4278 $searchable = (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false');
4284 if ($searchable === 'true') {
4287 if ($profile['dob'] && ($profile['dob'] > '0000-00-00')) {
4288 list($year, $month, $day) = sscanf($profile['dob'], '%4d-%2d-%2d');
4292 $dob = DateTimeFormat::utc($year . '-' . $month . '-'. $day, 'Y-m-d');
4295 $about = $profile['about'];
4296 $about = strip_tags(BBCode::convert($about));
4298 $location = Profile::formatLocation($profile);
4300 if ($profile['pub_keywords']) {
4301 $kw = str_replace(',', ' ', $profile['pub_keywords']);
4302 $kw = str_replace(' ', ' ', $kw);
4303 $arr = explode(' ', $profile['pub_keywords']);
4305 for ($x = 0; $x < 5; $x ++) {
4306 if (trim($arr[$x])) {
4307 $tags .= '#'. trim($arr[$x]) .' ';
4312 $tags = trim($tags);
4315 return ["author" => $handle,
4316 "first_name" => $first,
4317 "last_name" => $last,
4318 "image_url" => $large,
4319 "image_url_medium" => $medium,
4320 "image_url_small" => $small,
4322 "gender" => $profile['gender'],
4324 "location" => $location,
4325 "searchable" => $searchable,
4327 "tag_string" => $tags];
4331 * @brief Sends profile data
4333 * @param int $uid The user id
4334 * @param bool $recips optional, default false
4337 public static function sendProfile($uid, $recips = false)
4343 $owner = User::getOwnerDataById($uid);
4350 "SELECT `id`,`name`,`network`,`pubkey`,`notify` FROM `contact` WHERE `network` = '%s'
4351 AND `uid` = %d AND `rel` != %d",
4352 dbesc(NETWORK_DIASPORA),
4354 intval(CONTACT_IS_SHARING)
4362 $message = self::createProfileData($uid);
4364 foreach ($recips as $recip) {
4365 logger("Send updated profile data for user ".$uid." to contact ".$recip["id"], LOGGER_DEBUG);
4366 self::buildAndTransmit($owner, $recip, "profile", $message, false, "", false);
4371 * @brief Stores the signature for likes that are created on our system
4373 * @param array $contact The contact array of the "like"
4374 * @param int $post_id The post id of the "like"
4376 * @return bool Success
4378 public static function storeLikeSignature($contact, $post_id)
4380 // Is the contact the owner? Then fetch the private key
4381 if (!$contact['self'] || ($contact['uid'] == 0)) {
4382 logger("No owner post, so not storing signature", LOGGER_DEBUG);
4386 $r = q("SELECT `prvkey` FROM `user` WHERE `uid` = %d LIMIT 1", intval($contact['uid']));
4387 if (!DBM::is_result($r)) {
4391 $contact["uprvkey"] = $r[0]['prvkey'];
4393 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1", intval($post_id));
4394 if (!DBM::is_result($r)) {
4398 if (!in_array($r[0]["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4402 $message = self::constructLike($r[0], $contact);
4403 if ($message === false) {
4407 $message["author_signature"] = self::signature($contact, $message);
4410 * Now store the signature more flexible to dynamically support new fields.
4411 * This will break Diaspora compatibility with Friendica versions prior to 3.5.
4413 dba::insert('sign', ['iid' => $post_id, 'signed_text' => json_encode($message)]);
4415 logger('Stored diaspora like signature');
4420 * @brief Stores the signature for comments that are created on our system
4422 * @param array $item The item array of the comment
4423 * @param array $contact The contact array of the item owner
4424 * @param string $uprvkey The private key of the sender
4425 * @param int $message_id The message id of the comment
4427 * @return bool Success
4429 public static function storeCommentSignature($item, $contact, $uprvkey, $message_id)
4431 if ($uprvkey == "") {
4432 logger('No private key, so not storing comment signature', LOGGER_DEBUG);
4436 $contact["uprvkey"] = $uprvkey;
4438 $message = self::constructComment($item, $contact);
4439 if ($message === false) {
4443 $message["author_signature"] = self::signature($contact, $message);
4446 * Now store the signature more flexible to dynamically support new fields.
4447 * This will break Diaspora compatibility with Friendica versions prior to 3.5.
4449 dba::insert('sign', ['iid' => $message_id, 'signed_text' => json_encode($message)]);
4451 logger('Stored diaspora comment signature');