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\Logger;
19 use Friendica\Core\PConfig;
20 use Friendica\Core\Protocol;
21 use Friendica\Core\System;
22 use Friendica\Core\Worker;
23 use Friendica\Database\DBA;
24 use Friendica\Model\Contact;
25 use Friendica\Model\Conversation;
26 use Friendica\Model\GContact;
27 use Friendica\Model\Group;
28 use Friendica\Model\Item;
29 use Friendica\Model\Profile;
30 use Friendica\Model\Queue;
31 use Friendica\Model\User;
32 use Friendica\Network\Probe;
33 use Friendica\Util\Crypto;
34 use Friendica\Util\DateTimeFormat;
35 use Friendica\Util\Map;
36 use Friendica\Util\Network;
37 use Friendica\Util\Strings;
38 use Friendica\Util\XML;
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 $contacts The previously fetched contacts
55 * @return array of relay servers
56 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
58 public static function relayList($item_id, array $contacts = [])
62 // Fetching relay servers
63 $serverdata = Config::get("system", "relay_server");
65 if (!empty($serverdata)) {
66 $servers = explode(",", $serverdata);
67 foreach ($servers as $server) {
68 $serverlist[$server] = trim($server);
72 if (Config::get("system", "relay_directly", false)) {
73 // We distribute our stuff based on the parent to ensure that the thread will be complete
74 $parent = Item::selectFirst(['parent'], ['id' => $item_id]);
75 if (!DBA::isResult($parent)) {
79 // Servers that want to get all content
80 $servers = DBA::select('gserver', ['url'], ['relay-subscribe' => true, 'relay-scope' => 'all']);
81 while ($server = DBA::fetch($servers)) {
82 $serverlist[$server['url']] = $server['url'];
85 // All tags of the current post
86 $condition = ['otype' => TERM_OBJ_POST, 'type' => TERM_HASHTAG, 'oid' => $parent['parent']];
87 $tags = DBA::select('term', ['term'], $condition);
89 while ($tag = DBA::fetch($tags)) {
90 $taglist[] = $tag['term'];
93 // All servers who wants content with this tag
95 if (!empty($taglist)) {
96 $tagserver = DBA::select('gserver-tag', ['gserver-id'], ['tag' => $taglist]);
97 while ($server = DBA::fetch($tagserver)) {
98 $tagserverlist[] = $server['gserver-id'];
102 // All adresses with the given id
103 if (!empty($tagserverlist)) {
104 $servers = DBA::select('gserver', ['url'], ['relay-subscribe' => true, 'relay-scope' => 'tags', 'id' => $tagserverlist]);
105 while ($server = DBA::fetch($servers)) {
106 $serverlist[$server['url']] = $server['url'];
111 // Now we are collecting all relay contacts
112 foreach ($serverlist as $server_url) {
113 // We don't send messages to ourselves
114 if (Strings::compareLink($server_url, System::baseUrl())) {
117 $contact = self::getRelayContact($server_url);
118 if (is_bool($contact)) {
123 foreach ($contacts as $entry) {
124 if ($entry['batch'] == $contact['batch']) {
130 $contacts[] = $contact;
138 * @brief Return a contact for a given server address or creates a dummy entry
140 * @param string $server_url The url of the server
141 * @return array with the contact
144 private static function getRelayContact($server_url)
146 $fields = ['batch', 'id', 'name', 'network', 'archive', 'blocked'];
148 // Fetch the relay contact
149 $condition = ['uid' => 0, 'nurl' => Strings::normaliseLink($server_url),
150 'contact-type' => Contact::ACCOUNT_TYPE_RELAY];
151 $contact = DBA::selectFirst('contact', $fields, $condition);
153 if (DBA::isResult($contact)) {
154 if ($contact['archive'] || $contact['blocked']) {
159 self::setRelayContact($server_url);
161 $contact = DBA::selectFirst('contact', $fields, $condition);
162 if (DBA::isResult($contact)) {
167 // It should never happen that we arrive here
172 * @brief Update or insert a relay contact
174 * @param string $server_url The url of the server
175 * @param array $network_fields Optional network specific fields
178 public static function setRelayContact($server_url, array $network_fields = [])
180 $fields = ['created' => DateTimeFormat::utcNow(),
181 'name' => 'relay', 'nick' => 'relay',
182 'url' => $server_url, 'network' => Protocol::DIASPORA,
183 'batch' => $server_url . '/receive/public',
184 'rel' => Contact::FOLLOWER, 'blocked' => false,
185 'pending' => false, 'writable' => true];
187 $fields = array_merge($fields, $network_fields);
189 $condition = ['uid' => 0, 'nurl' => Strings::normaliseLink($server_url),
190 'contact-type' => Contact::ACCOUNT_TYPE_RELAY];
192 if (DBA::exists('contact', $condition)) {
193 unset($fields['created']);
196 DBA::update('contact', $fields, $condition, true);
200 * @brief Return a list of participating contacts for a thread
202 * This is used for the participation feature.
203 * One of the parameters is a contact array.
204 * This is done to avoid duplicates.
206 * @param integer $thread The id of the thread
207 * @param array $contacts The previously fetched contacts
209 * @return array of relay servers
212 public static function participantsForThread($thread, array $contacts)
214 $r = DBA::p("SELECT `contact`.`batch`, `contact`.`id`, `contact`.`name`, `contact`.`network`,
215 `fcontact`.`batch` AS `fbatch`, `fcontact`.`network` AS `fnetwork` FROM `participation`
216 INNER JOIN `contact` ON `contact`.`id` = `participation`.`cid`
217 INNER JOIN `fcontact` ON `fcontact`.`id` = `participation`.`fid`
218 WHERE `participation`.`iid` = ?", $thread);
220 while ($contact = DBA::fetch($r)) {
221 if (!empty($contact['fnetwork'])) {
222 $contact['network'] = $contact['fnetwork'];
224 unset($contact['fnetwork']);
226 if (empty($contact['batch']) && !empty($contact['fbatch'])) {
227 $contact['batch'] = $contact['fbatch'];
229 unset($contact['fbatch']);
232 foreach ($contacts as $entry) {
233 if ($entry['batch'] == $contact['batch']) {
239 $contacts[] = $contact;
248 * @brief repairs a signature that was double encoded
250 * The function is unused at the moment. It was copied from the old implementation.
252 * @param string $signature The signature
253 * @param string $handle The handle of the signature owner
254 * @param integer $level This value is only set inside this function to avoid endless loops
256 * @return string the repaired signature
259 private static function repairSignature($signature, $handle = "", $level = 1)
261 if ($signature == "") {
265 if (base64_encode(base64_decode(base64_decode($signature))) == base64_decode($signature)) {
266 $signature = base64_decode($signature);
267 Logger::log("Repaired double encoded signature from Diaspora/Hubzilla handle ".$handle." - level ".$level, Logger::DEBUG);
269 // Do a recursive call to be able to fix even multiple levels
271 $signature = self::repairSignature($signature, $handle, ++$level);
279 * @brief verify the envelope and return the verified data
281 * @param string $envelope The magic envelope
283 * @return string verified data
284 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
285 * @throws \ImagickException
287 private static function verifyMagicEnvelope($envelope)
289 $basedom = XML::parseString($envelope);
291 if (!is_object($basedom)) {
292 Logger::log("Envelope is no XML file");
296 $children = $basedom->children('http://salmon-protocol.org/ns/magic-env');
298 if (sizeof($children) == 0) {
299 Logger::log("XML has no children");
305 $data = Strings::base64UrlDecode($children->data);
306 $type = $children->data->attributes()->type[0];
308 $encoding = $children->encoding;
310 $alg = $children->alg;
312 $sig = Strings::base64UrlDecode($children->sig);
313 $key_id = $children->sig->attributes()->key_id[0];
315 $handle = Strings::base64UrlDecode($key_id);
318 $b64url_data = Strings::base64UrlEncode($data);
319 $msg = str_replace(["\n", "\r", " ", "\t"], ["", "", "", ""], $b64url_data);
321 $signable_data = $msg.".".Strings::base64UrlEncode($type).".".Strings::base64UrlEncode($encoding).".".Strings::base64UrlEncode($alg);
324 Logger::log('No author could be decoded. Discarding. Message: ' . $envelope);
328 $key = self::key($handle);
330 Logger::log("Couldn't get a key for handle " . $handle . ". Discarding.");
334 $verify = Crypto::rsaVerify($signable_data, $sig, $key);
336 Logger::log('Message from ' . $handle . ' did not verify. Discarding.');
344 * @brief encrypts data via AES
346 * @param string $key The AES key
347 * @param string $iv The IV (is used for CBC encoding)
348 * @param string $data The data that is to be encrypted
350 * @return string encrypted data
352 private static function aesEncrypt($key, $iv, $data)
354 return openssl_encrypt($data, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
358 * @brief decrypts data via AES
360 * @param string $key The AES key
361 * @param string $iv The IV (is used for CBC encoding)
362 * @param string $encrypted The encrypted data
364 * @return string decrypted data
366 private static function aesDecrypt($key, $iv, $encrypted)
368 return openssl_decrypt($encrypted, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
372 * @brief: Decodes incoming Diaspora message in the new format
374 * @param array $importer Array of the importer user
375 * @param string $raw raw post message
376 * @param boolean $no_exit Don't do an http exit on error
379 * 'message' -> decoded Diaspora XML message
380 * 'author' -> author diaspora handle
381 * 'key' -> author public key (converted to pkcs#8)
382 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
383 * @throws \ImagickException
385 public static function decodeRaw(array $importer, $raw, $no_exit = false)
387 $data = json_decode($raw);
389 // Is it a private post? Then decrypt the outer Salmon
390 if (is_object($data)) {
391 $encrypted_aes_key_bundle = base64_decode($data->aes_key);
392 $ciphertext = base64_decode($data->encrypted_magic_envelope);
394 $outer_key_bundle = '';
395 @openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $importer['prvkey']);
396 $j_outer_key_bundle = json_decode($outer_key_bundle);
398 if (!is_object($j_outer_key_bundle)) {
399 Logger::log('Outer Salmon did not verify. Discarding.');
403 System::httpExit(400);
407 $outer_iv = base64_decode($j_outer_key_bundle->iv);
408 $outer_key = base64_decode($j_outer_key_bundle->key);
410 $xml = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
415 $basedom = XML::parseString($xml);
417 if (!is_object($basedom)) {
418 Logger::log('Received data does not seem to be an XML. Discarding. '.$xml);
422 System::httpExit(400);
426 $base = $basedom->children(NAMESPACE_SALMON_ME);
428 // Not sure if this cleaning is needed
429 $data = str_replace([" ", "\t", "\r", "\n"], ["", "", "", ""], $base->data);
431 // Build the signed data
432 $type = $base->data[0]->attributes()->type[0];
433 $encoding = $base->encoding;
435 $signed_data = $data.'.'.Strings::base64UrlEncode($type).'.'.Strings::base64UrlEncode($encoding).'.'.Strings::base64UrlEncode($alg);
437 // This is the signature
438 $signature = Strings::base64UrlDecode($base->sig);
440 // Get the senders' public key
441 $key_id = $base->sig[0]->attributes()->key_id[0];
442 $author_addr = base64_decode($key_id);
443 if ($author_addr == '') {
444 Logger::log('No author could be decoded. Discarding. Message: ' . $xml);
448 System::httpExit(400);
452 $key = self::key($author_addr);
454 Logger::log("Couldn't get a key for handle " . $author_addr . ". Discarding.");
458 System::httpExit(400);
462 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
464 Logger::log('Message did not verify. Discarding.');
468 System::httpExit(400);
472 return ['message' => (string)Strings::base64UrlDecode($base->data),
473 'author' => XML::unescape($author_addr),
474 'key' => (string)$key];
478 * @brief: Decodes incoming Diaspora message in the deprecated format
480 * @param array $importer Array of the importer user
481 * @param string $xml urldecoded Diaspora salmon
484 * 'message' -> decoded Diaspora XML message
485 * 'author' -> author diaspora handle
486 * 'key' -> author public key (converted to pkcs#8)
487 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
488 * @throws \ImagickException
490 public static function decode(array $importer, $xml)
493 $basedom = XML::parseString($xml);
495 if (!is_object($basedom)) {
496 Logger::log("XML is not parseable.");
499 $children = $basedom->children('https://joindiaspora.com/protocol');
501 $inner_aes_key = null;
504 if ($children->header) {
506 $author_link = str_replace('acct:', '', $children->header->author_id);
508 // This happens with posts from a relais
510 Logger::log("This is no private post in the old format", Logger::DEBUG);
514 $encrypted_header = json_decode(base64_decode($children->encrypted_header));
516 $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
517 $ciphertext = base64_decode($encrypted_header->ciphertext);
519 $outer_key_bundle = '';
520 openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $importer['prvkey']);
522 $j_outer_key_bundle = json_decode($outer_key_bundle);
524 $outer_iv = base64_decode($j_outer_key_bundle->iv);
525 $outer_key = base64_decode($j_outer_key_bundle->key);
527 $decrypted = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
529 Logger::log('decrypted: '.$decrypted, Logger::DEBUG);
530 $idom = XML::parseString($decrypted);
532 $inner_iv = base64_decode($idom->iv);
533 $inner_aes_key = base64_decode($idom->aes_key);
535 $author_link = str_replace('acct:', '', $idom->author_id);
538 $dom = $basedom->children(NAMESPACE_SALMON_ME);
540 // figure out where in the DOM tree our data is hiding
543 if ($dom->provenance->data) {
544 $base = $dom->provenance;
545 } elseif ($dom->env->data) {
547 } elseif ($dom->data) {
552 Logger::log('unable to locate salmon data in xml');
553 System::httpExit(400);
557 // Stash the signature away for now. We have to find their key or it won't be good for anything.
558 $signature = Strings::base64UrlDecode($base->sig);
562 // strip whitespace so our data element will return to one big base64 blob
563 $data = str_replace([" ", "\t", "\r", "\n"], ["", "", "", ""], $base->data);
566 // stash away some other stuff for later
568 $type = $base->data[0]->attributes()->type[0];
569 $keyhash = $base->sig[0]->attributes()->keyhash[0];
570 $encoding = $base->encoding;
574 $signed_data = $data.'.'.Strings::base64UrlEncode($type).'.'.Strings::base64UrlEncode($encoding).'.'.Strings::base64UrlEncode($alg);
578 $data = Strings::base64UrlDecode($data);
582 $inner_decrypted = $data;
584 // Decode the encrypted blob
585 $inner_encrypted = base64_decode($data);
586 $inner_decrypted = self::aesDecrypt($inner_aes_key, $inner_iv, $inner_encrypted);
590 Logger::log('Could not retrieve author URI.');
591 System::httpExit(400);
593 // Once we have the author URI, go to the web and try to find their public key
594 // (first this will look it up locally if it is in the fcontact cache)
595 // This will also convert diaspora public key from pkcs#1 to pkcs#8
597 Logger::log('Fetching key for '.$author_link);
598 $key = self::key($author_link);
601 Logger::log('Could not retrieve author key.');
602 System::httpExit(400);
605 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
608 Logger::log('Message did not verify. Discarding.');
609 System::httpExit(400);
612 Logger::log('Message verified.');
614 return ['message' => (string)$inner_decrypted,
615 'author' => XML::unescape($author_link),
616 'key' => (string)$key];
621 * @brief Dispatches public messages and find the fitting receivers
623 * @param array $msg The post that will be dispatched
625 * @return int The message id of the generated message, "true" or "false" if there was an error
626 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
627 * @throws \ImagickException
629 public static function dispatchPublic($msg)
631 $enabled = intval(Config::get("system", "diaspora_enabled"));
633 Logger::log("diaspora is disabled");
637 if (!($fields = self::validPosting($msg))) {
638 Logger::log("Invalid posting");
642 $importer = ["uid" => 0, "page-flags" => Contact::PAGE_FREELOVE];
643 $success = self::dispatch($importer, $msg, $fields);
649 * @brief Dispatches the different message types to the different functions
651 * @param array $importer Array of the importer user
652 * @param array $msg The post that will be dispatched
653 * @param object $fields SimpleXML object that contains the message
655 * @return int The message id of the generated message, "true" or "false" if there was an error
656 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
657 * @throws \ImagickException
659 public static function dispatch(array $importer, $msg, $fields = null)
661 // The sender is the handle of the contact that sent the message.
662 // This will often be different with relayed messages (for example "like" and "comment")
663 $sender = $msg["author"];
665 // This is only needed for private postings since this is already done for public ones before
666 if (is_null($fields)) {
668 if (!($fields = self::validPosting($msg))) {
669 Logger::log("Invalid posting");
676 $type = $fields->getName();
678 Logger::log("Received message type ".$type." from ".$sender." for user ".$importer["uid"], Logger::DEBUG);
681 case "account_migration":
683 Logger::log('Message with type ' . $type . ' is not private, quitting.');
686 return self::receiveAccountMigration($importer, $fields);
688 case "account_deletion":
689 return self::receiveAccountDeletion($fields);
692 return self::receiveComment($importer, $sender, $fields, $msg["message"]);
696 Logger::log('Message with type ' . $type . ' is not private, quitting.');
699 return self::receiveContactRequest($importer, $fields);
703 Logger::log('Message with type ' . $type . ' is not private, quitting.');
706 return self::receiveConversation($importer, $msg, $fields);
709 return self::receiveLike($importer, $sender, $fields);
713 Logger::log('Message with type ' . $type . ' is not private, quitting.');
716 return self::receiveMessage($importer, $fields);
718 case "participation":
720 Logger::log('Message with type ' . $type . ' is not private, quitting.');
723 return self::receiveParticipation($importer, $fields);
725 case "photo": // Not implemented
726 return self::receivePhoto($importer, $fields);
728 case "poll_participation": // Not implemented
729 return self::receivePollParticipation($importer, $fields);
733 Logger::log('Message with type ' . $type . ' is not private, quitting.');
736 return self::receiveProfile($importer, $fields);
739 return self::receiveReshare($importer, $fields, $msg["message"]);
742 return self::receiveRetraction($importer, $sender, $fields);
744 case "status_message":
745 return self::receiveStatusMessage($importer, $fields, $msg["message"]);
748 Logger::log("Unknown message type ".$type);
756 * @brief Checks if a posting is valid and fetches the data fields.
758 * This function does not only check the signature.
759 * It also does the conversion between the old and the new diaspora format.
761 * @param array $msg Array with the XML, the sender handle and the sender signature
763 * @return bool|array If the posting is valid then an array with an SimpleXML object is returned
764 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
765 * @throws \ImagickException
767 private static function validPosting($msg)
769 $data = XML::parseString($msg["message"]);
771 if (!is_object($data)) {
772 Logger::log("No valid XML ".$msg["message"], Logger::DEBUG);
776 // Is this the new or the old version?
777 if ($data->getName() == "XML") {
779 foreach ($data->post->children() as $child) {
787 $type = $element->getName();
790 Logger::log("Got message type ".$type.": ".$msg["message"], Logger::DATA);
792 // All retractions are handled identically from now on.
793 // In the new version there will only be "retraction".
794 if (in_array($type, ["signed_retraction", "relayable_retraction"]))
795 $type = "retraction";
797 if ($type == "request") {
801 $fields = new SimpleXMLElement("<".$type."/>");
804 $author_signature = null;
805 $parent_author_signature = null;
807 foreach ($element->children() as $fieldname => $entry) {
809 // Translation for the old XML structure
810 if ($fieldname == "diaspora_handle") {
811 $fieldname = "author";
813 if ($fieldname == "participant_handles") {
814 $fieldname = "participants";
816 if (in_array($type, ["like", "participation"])) {
817 if ($fieldname == "target_type") {
818 $fieldname = "parent_type";
821 if ($fieldname == "sender_handle") {
822 $fieldname = "author";
824 if ($fieldname == "recipient_handle") {
825 $fieldname = "recipient";
827 if ($fieldname == "root_diaspora_id") {
828 $fieldname = "root_author";
830 if ($type == "status_message") {
831 if ($fieldname == "raw_message") {
835 if ($type == "retraction") {
836 if ($fieldname == "post_guid") {
837 $fieldname = "target_guid";
839 if ($fieldname == "type") {
840 $fieldname = "target_type";
845 if (($fieldname == "author_signature") && ($entry != "")) {
846 $author_signature = base64_decode($entry);
847 } elseif (($fieldname == "parent_author_signature") && ($entry != "")) {
848 $parent_author_signature = base64_decode($entry);
849 } elseif (!in_array($fieldname, ["author_signature", "parent_author_signature", "target_author_signature"])) {
850 if ($signed_data != "") {
854 $signed_data .= $entry;
856 if (!in_array($fieldname, ["parent_author_signature", "target_author_signature"])
857 || ($orig_type == "relayable_retraction")
859 XML::copy($entry, $fields, $fieldname);
863 // This is something that shouldn't happen at all.
864 if (in_array($type, ["status_message", "reshare", "profile"])) {
865 if ($msg["author"] != $fields->author) {
866 Logger::log("Message handle is not the same as envelope sender. Quitting this message.");
871 // Only some message types have signatures. So we quit here for the other types.
872 if (!in_array($type, ["comment", "like"])) {
875 // No author_signature? This is a must, so we quit.
876 if (!isset($author_signature)) {
877 Logger::log("No author signature for type ".$type." - Message: ".$msg["message"], Logger::DEBUG);
881 if (isset($parent_author_signature)) {
882 $key = self::key($msg["author"]);
884 Logger::log("No key found for parent author ".$msg["author"], Logger::DEBUG);
888 if (!Crypto::rsaVerify($signed_data, $parent_author_signature, $key, "sha256")) {
889 Logger::log("No valid parent author signature for parent author ".$msg["author"]. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$parent_author_signature, Logger::DEBUG);
894 $key = self::key($fields->author);
896 Logger::log("No key found for author ".$fields->author, Logger::DEBUG);
900 if (!Crypto::rsaVerify($signed_data, $author_signature, $key, "sha256")) {
901 Logger::log("No valid author signature for author ".$fields->author. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$author_signature, Logger::DEBUG);
909 * @brief Fetches the public key for a given handle
911 * @param string $handle The handle
913 * @return string The public key
914 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
915 * @throws \ImagickException
917 private static function key($handle)
919 $handle = strval($handle);
921 Logger::log("Fetching diaspora key for: ".$handle);
923 $r = self::personByHandle($handle);
932 * @brief Fetches data for a given handle
934 * @param string $handle The handle
936 * @return array the queried data
937 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
938 * @throws \ImagickException
940 public static function personByHandle($handle)
944 $person = DBA::selectFirst('fcontact', [], ['network' => Protocol::DIASPORA, 'addr' => $handle]);
945 if (DBA::isResult($person)) {
946 Logger::log("In cache " . print_r($person, true), Logger::DEBUG);
948 // update record occasionally so it doesn't get stale
949 $d = strtotime($person["updated"]." +00:00");
950 if ($d < strtotime("now - 14 days")) {
954 if ($person["guid"] == "") {
959 if (!DBA::isResult($person) || $update) {
960 Logger::log("create or refresh", Logger::DEBUG);
961 $r = Probe::uri($handle, Protocol::DIASPORA);
963 // Note that Friendica contacts will return a "Diaspora person"
964 // if Diaspora connectivity is enabled on their server
965 if ($r && ($r["network"] === Protocol::DIASPORA)) {
966 self::updateFContact($r);
968 // Fetch the updated or added contact
969 $person = DBA::selectFirst('fcontact', [], ['network' => Protocol::DIASPORA, 'addr' => $handle]);
970 if (!DBA::isResult($person)) {
981 * @brief Updates the fcontact table
983 * @param array $arr The fcontact data
986 private static function updateFContact($arr)
988 $fields = ['name' => $arr["name"], 'photo' => $arr["photo"],
989 'request' => $arr["request"], 'nick' => $arr["nick"],
990 'addr' => strtolower($arr["addr"]), 'guid' => $arr["guid"],
991 'batch' => $arr["batch"], 'notify' => $arr["notify"],
992 'poll' => $arr["poll"], 'confirm' => $arr["confirm"],
993 'alias' => $arr["alias"], 'pubkey' => $arr["pubkey"],
994 'updated' => DateTimeFormat::utcNow()];
996 $condition = ['url' => $arr["url"], 'network' => $arr["network"]];
998 DBA::update('fcontact', $fields, $condition, true);
1002 * @brief get a handle (user@domain.tld) from a given contact id
1004 * @param int $contact_id The id in the contact table
1005 * @param int $pcontact_id The id in the contact table (Used for the public contact)
1007 * @return string the handle
1008 * @throws \Exception
1010 private static function handleFromContact($contact_id, $pcontact_id = 0)
1014 Logger::log("contact id is ".$contact_id." - pcontact id is ".$pcontact_id, Logger::DEBUG);
1016 if ($pcontact_id != 0) {
1017 $contact = DBA::selectFirst('contact', ['addr'], ['id' => $pcontact_id]);
1019 if (DBA::isResult($contact) && !empty($contact["addr"])) {
1020 return strtolower($contact["addr"]);
1025 "SELECT `network`, `addr`, `self`, `url`, `nick` FROM `contact` WHERE `id` = %d",
1029 if (DBA::isResult($r)) {
1032 Logger::log("contact 'self' = ".$contact['self']." 'url' = ".$contact['url'], Logger::DEBUG);
1034 if ($contact['addr'] != "") {
1035 $handle = $contact['addr'];
1037 $baseurl_start = strpos($contact['url'], '://') + 3;
1038 // allows installations in a subdirectory--not sure how Diaspora will handle
1039 $baseurl_length = strpos($contact['url'], '/profile') - $baseurl_start;
1040 $baseurl = substr($contact['url'], $baseurl_start, $baseurl_length);
1041 $handle = $contact['nick'].'@'.$baseurl;
1045 return strtolower($handle);
1049 * @brief get a url (scheme://domain.tld/u/user) from a given Diaspora*
1052 * @param mixed $fcontact_guid Hexadecimal string guid
1054 * @return string the contact url or null
1055 * @throws \Exception
1057 public static function urlFromContactGuid($fcontact_guid)
1059 Logger::log("fcontact guid is ".$fcontact_guid, Logger::DEBUG);
1062 "SELECT `url` FROM `fcontact` WHERE `url` != '' AND `network` = '%s' AND `guid` = '%s'",
1063 DBA::escape(Protocol::DIASPORA),
1064 DBA::escape($fcontact_guid)
1067 if (DBA::isResult($r)) {
1068 return $r[0]['url'];
1075 * @brief Get a contact id for a given handle
1077 * @todo Move to Friendica\Model\Contact
1079 * @param int $uid The user id
1080 * @param string $handle The handle in the format user@domain.tld
1082 * @return int Contact id
1083 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1084 * @throws \ImagickException
1086 private static function contactByHandle($uid, $handle)
1088 $cid = Contact::getIdForURL($handle, $uid);
1090 $handle_parts = explode("@", $handle);
1091 $nurl_sql = "%%://" . $handle_parts[1] . "%%/profile/" . $handle_parts[0];
1092 $cid = Contact::getIdForURL($nurl_sql, $uid);
1096 Logger::log("Haven't found a contact for user " . $uid . " and handle " . $handle, Logger::DEBUG);
1100 $contact = DBA::selectFirst('contact', [], ['id' => $cid]);
1101 if (!DBA::isResult($contact)) {
1102 // This here shouldn't happen at all
1103 Logger::log("Haven't found a contact for user " . $uid . " and handle " . $handle, Logger::DEBUG);
1111 * @brief Check if posting is allowed for this contact
1113 * @param array $importer Array of the importer user
1114 * @param array $contact The contact that is checked
1115 * @param bool $is_comment Is the check for a comment?
1117 * @return bool is the contact allowed to post?
1119 private static function postAllow(array $importer, array $contact, $is_comment = false)
1122 * Perhaps we were already sharing with this person. Now they're sharing with us.
1123 * That makes us friends.
1124 * Normally this should have handled by getting a request - but this could get lost
1126 // It is deactivated by now, due to side effects. See issue https://github.com/friendica/friendica/pull/4033
1127 // It is not removed by now. Possibly the code is needed?
1128 //if (!$is_comment && $contact["rel"] == Contact::FOLLOWER && in_array($importer["page-flags"], array(Contact::PAGE_FREELOVE))) {
1131 // array('rel' => Contact::FRIEND, 'writable' => true),
1132 // array('id' => $contact["id"], 'uid' => $contact["uid"])
1135 // $contact["rel"] = Contact::FRIEND;
1136 // Logger::log("defining user ".$contact["nick"]." as friend");
1139 // We don't seem to like that person
1140 if ($contact["blocked"]) {
1141 // Maybe blocked, don't accept.
1143 // We are following this person?
1144 } elseif (($contact["rel"] == Contact::SHARING) || ($contact["rel"] == Contact::FRIEND)) {
1145 // Yes, then it is fine.
1147 // Is it a post to a community?
1148 } elseif (($contact["rel"] == Contact::FOLLOWER) && in_array($importer["page-flags"], [Contact::PAGE_COMMUNITY, Contact::PAGE_PRVGROUP])) {
1151 // Is the message a global user or a comment?
1152 } elseif (($importer["uid"] == 0) || $is_comment) {
1153 // Messages for the global users and comments are always accepted
1161 * @brief Fetches the contact id for a handle and checks if posting is allowed
1163 * @param array $importer Array of the importer user
1164 * @param string $handle The checked handle in the format user@domain.tld
1165 * @param bool $is_comment Is the check for a comment?
1167 * @return array The contact data
1168 * @throws \Exception
1170 private static function allowedContactByHandle(array $importer, $handle, $is_comment = false)
1172 $contact = self::contactByHandle($importer["uid"], $handle);
1174 Logger::log("A Contact for handle ".$handle." and user ".$importer["uid"]." was not found");
1175 // If a contact isn't found, we accept it anyway if it is a comment
1176 if ($is_comment && ($importer["uid"] != 0)) {
1177 return self::contactByHandle(0, $handle);
1178 } elseif ($is_comment) {
1185 if (!self::postAllow($importer, $contact, $is_comment)) {
1186 Logger::log("The handle: ".$handle." is not allowed to post to user ".$importer["uid"]);
1193 * @brief Does the message already exists on the system?
1195 * @param int $uid The user id
1196 * @param string $guid The guid of the message
1198 * @return int|bool message id if the message already was stored into the system - or false.
1199 * @throws \Exception
1201 private static function messageExists($uid, $guid)
1203 $item = Item::selectFirst(['id'], ['uid' => $uid, 'guid' => $guid]);
1204 if (DBA::isResult($item)) {
1205 Logger::log("message ".$guid." already exists for user ".$uid);
1213 * @brief Checks for links to posts in a message
1215 * @param array $item The item array
1218 private static function fetchGuid(array $item)
1220 $expression = "=diaspora://.*?/post/([0-9A-Za-z\-_@.:]{15,254}[0-9A-Za-z])=ism";
1221 preg_replace_callback(
1223 function ($match) use ($item) {
1224 self::fetchGuidSub($match, $item);
1229 preg_replace_callback(
1230 "&\[url=/?posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
1231 function ($match) use ($item) {
1232 self::fetchGuidSub($match, $item);
1239 * @brief Checks for relative /people/* links in an item body to match local
1240 * contacts or prepends the remote host taken from the author link.
1242 * @param string $body The item body to replace links from
1243 * @param string $author_link The author link for missing local contact fallback
1245 * @return string the replaced string
1247 public static function replacePeopleGuid($body, $author_link)
1249 $return = preg_replace_callback(
1250 "&\[url=/people/([^\[\]]*)\](.*)\[\/url\]&Usi",
1251 function ($match) use ($author_link) {
1253 // 0 => '[url=/people/0123456789abcdef]Foo Bar[/url]'
1254 // 1 => '0123456789abcdef'
1256 $handle = self::urlFromContactGuid($match[1]);
1259 $return = '@[url='.$handle.']'.$match[2].'[/url]';
1261 // No local match, restoring absolute remote URL from author scheme and host
1262 $author_url = parse_url($author_link);
1263 $return = '[url='.$author_url['scheme'].'://'.$author_url['host'].'/people/'.$match[1].']'.$match[2].'[/url]';
1275 * @brief sub function of "fetchGuid" which checks for links in messages
1277 * @param array $match array containing a link that has to be checked for a message link
1278 * @param array $item The item array
1280 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1281 * @throws \ImagickException
1283 private static function fetchGuidSub($match, $item)
1285 if (!self::storeByGuid($match[1], $item["author-link"])) {
1286 self::storeByGuid($match[1], $item["owner-link"]);
1291 * @brief Fetches an item with a given guid from a given server
1293 * @param string $guid the message guid
1294 * @param string $server The server address
1295 * @param int $uid The user id of the user
1297 * @return int the message id of the stored message or false
1298 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1299 * @throws \ImagickException
1301 private static function storeByGuid($guid, $server, $uid = 0)
1303 $serverparts = parse_url($server);
1305 if (empty($serverparts["host"]) || empty($serverparts["scheme"])) {
1309 $server = $serverparts["scheme"]."://".$serverparts["host"];
1311 Logger::log("Trying to fetch item ".$guid." from ".$server, Logger::DEBUG);
1313 $msg = self::message($guid, $server);
1319 Logger::log("Successfully fetched item ".$guid." from ".$server, Logger::DEBUG);
1321 // Now call the dispatcher
1322 return self::dispatchPublic($msg);
1326 * @brief Fetches a message from a server
1328 * @param string $guid message guid
1329 * @param string $server The url of the server
1330 * @param int $level Endless loop prevention
1333 * 'message' => The message XML
1334 * 'author' => The author handle
1335 * 'key' => The public key of the author
1336 * @throws \Exception
1338 private static function message($guid, $server, $level = 0)
1344 // This will work for new Diaspora servers and Friendica servers from 3.5
1345 $source_url = $server."/fetch/post/".urlencode($guid);
1347 Logger::log("Fetch post from ".$source_url, Logger::DEBUG);
1349 $envelope = Network::fetchUrl($source_url);
1351 Logger::log("Envelope was fetched.", Logger::DEBUG);
1352 $x = self::verifyMagicEnvelope($envelope);
1354 Logger::log("Envelope could not be verified.", Logger::DEBUG);
1356 Logger::log("Envelope was verified.", Logger::DEBUG);
1366 $source_xml = XML::parseString($x);
1368 if (!is_object($source_xml)) {
1372 if ($source_xml->post->reshare) {
1373 // Reshare of a reshare - old Diaspora version
1374 Logger::log("Message is a reshare", Logger::DEBUG);
1375 return self::message($source_xml->post->reshare->root_guid, $server, ++$level);
1376 } elseif ($source_xml->getName() == "reshare") {
1377 // Reshare of a reshare - new Diaspora version
1378 Logger::log("Message is a new reshare", Logger::DEBUG);
1379 return self::message($source_xml->root_guid, $server, ++$level);
1384 // Fetch the author - for the old and the new Diaspora version
1385 if ($source_xml->post->status_message && $source_xml->post->status_message->diaspora_handle) {
1386 $author = (string)$source_xml->post->status_message->diaspora_handle;
1387 } elseif ($source_xml->author && ($source_xml->getName() == "status_message")) {
1388 $author = (string)$source_xml->author;
1391 // If this isn't a "status_message" then quit
1393 Logger::log("Message doesn't seem to be a status message", Logger::DEBUG);
1397 $msg = ["message" => $x, "author" => $author];
1399 $msg["key"] = self::key($msg["author"]);
1405 * @brief Fetches the item record of a given guid
1407 * @param int $uid The user id
1408 * @param string $guid message guid
1409 * @param string $author The handle of the item
1410 * @param array $contact The contact of the item owner
1412 * @return array the item record
1413 * @throws \Exception
1415 private static function parentItem($uid, $guid, $author, array $contact)
1417 $fields = ['id', 'parent', 'body', 'wall', 'uri', 'guid', 'private', 'origin',
1418 'author-name', 'author-link', 'author-avatar',
1419 'owner-name', 'owner-link', 'owner-avatar'];
1420 $condition = ['uid' => $uid, 'guid' => $guid];
1421 $item = Item::selectFirst($fields, $condition);
1423 if (!DBA::isResult($item)) {
1424 $person = self::personByHandle($author);
1425 $result = self::storeByGuid($guid, $person["url"], $uid);
1427 // We don't have an url for items that arrived at the public dispatcher
1428 if (!$result && !empty($contact["url"])) {
1429 $result = self::storeByGuid($guid, $contact["url"], $uid);
1433 Logger::log("Fetched missing item ".$guid." - result: ".$result, Logger::DEBUG);
1435 $item = Item::selectFirst($fields, $condition);
1439 if (!DBA::isResult($item)) {
1440 Logger::log("parent item not found: parent: ".$guid." - user: ".$uid);
1443 Logger::log("parent item found: parent: ".$guid." - user: ".$uid);
1449 * @brief returns contact details
1451 * @param array $def_contact The default contact if the person isn't found
1452 * @param array $person The record of the person
1453 * @param int $uid The user id
1456 * 'cid' => contact id
1457 * 'network' => network type
1458 * @throws \Exception
1460 private static function authorContactByUrl($def_contact, $person, $uid)
1462 $condition = ['nurl' => Strings::normaliseLink($person["url"]), 'uid' => $uid];
1463 $contact = DBA::selectFirst('contact', ['id', 'network'], $condition);
1464 if (DBA::isResult($contact)) {
1465 $cid = $contact["id"];
1466 $network = $contact["network"];
1468 $cid = $def_contact["id"];
1469 $network = Protocol::DIASPORA;
1472 return ["cid" => $cid, "network" => $network];
1476 * @brief Is the profile a hubzilla profile?
1478 * @param string $url The profile link
1480 * @return bool is it a hubzilla server?
1482 public static function isRedmatrix($url)
1484 return(strstr($url, "/channel/"));
1488 * @brief Generate a post link with a given handle and message guid
1490 * @param string $addr The user handle
1491 * @param string $guid message guid
1492 * @param string $parent_guid optional parent guid
1494 * @return string the post link
1495 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1496 * @throws \ImagickException
1498 private static function plink($addr, $guid, $parent_guid = '')
1500 $contact = Contact::getDetailsByAddr($addr);
1504 if ($parent_guid != '') {
1505 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $parent_guid . "#" . $guid;
1507 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $guid;
1511 if ($contact["network"] == Protocol::DFRN) {
1512 return str_replace("/profile/" . $contact["nick"] . "/", "/display/" . $guid, $contact["url"] . "/");
1515 if (self::isRedmatrix($contact["url"])) {
1516 return $contact["url"] . "/?f=&mid=" . $guid;
1519 if ($parent_guid != '') {
1520 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $parent_guid . "#" . $guid;
1522 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $guid;
1527 * @brief Receives account migration
1529 * @param array $importer Array of the importer user
1530 * @param object $data The message object
1532 * @return bool Success
1533 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1534 * @throws \ImagickException
1536 private static function receiveAccountMigration(array $importer, $data)
1538 $old_handle = Strings::escapeTags(XML::unescape($data->author));
1539 $new_handle = Strings::escapeTags(XML::unescape($data->profile->author));
1540 $signature = Strings::escapeTags(XML::unescape($data->signature));
1542 $contact = self::contactByHandle($importer["uid"], $old_handle);
1544 Logger::log("cannot find contact for sender: ".$old_handle." and user ".$importer["uid"]);
1548 Logger::log("Got migration for ".$old_handle.", to ".$new_handle." with user ".$importer["uid"]);
1551 $signed_text = 'AccountMigration:'.$old_handle.':'.$new_handle;
1552 $key = self::key($old_handle);
1553 if (!Crypto::rsaVerify($signed_text, $signature, $key, "sha256")) {
1554 Logger::log('No valid signature for migration.');
1558 // Update the profile
1559 self::receiveProfile($importer, $data->profile);
1561 // change the technical stuff in contact and gcontact
1562 $data = Probe::uri($new_handle);
1563 if ($data['network'] == Protocol::PHANTOM) {
1564 Logger::log('Account for '.$new_handle." couldn't be probed.");
1568 $fields = ['url' => $data['url'], 'nurl' => Strings::normaliseLink($data['url']),
1569 'name' => $data['name'], 'nick' => $data['nick'],
1570 'addr' => $data['addr'], 'batch' => $data['batch'],
1571 'notify' => $data['notify'], 'poll' => $data['poll'],
1572 'network' => $data['network']];
1574 DBA::update('contact', $fields, ['addr' => $old_handle]);
1576 $fields = ['url' => $data['url'], 'nurl' => Strings::normaliseLink($data['url']),
1577 'name' => $data['name'], 'nick' => $data['nick'],
1578 'addr' => $data['addr'], 'connect' => $data['addr'],
1579 'notify' => $data['notify'], 'photo' => $data['photo'],
1580 'server_url' => $data['baseurl'], 'network' => $data['network']];
1582 DBA::update('gcontact', $fields, ['addr' => $old_handle]);
1584 Logger::log('Contacts are updated.');
1590 * @brief Processes an account deletion
1592 * @param object $data The message object
1594 * @return bool Success
1595 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1597 private static function receiveAccountDeletion($data)
1599 $author = Strings::escapeTags(XML::unescape($data->author));
1601 $contacts = DBA::select('contact', ['id'], ['addr' => $author]);
1602 while ($contact = DBA::fetch($contacts)) {
1603 Contact::remove($contact["id"]);
1606 DBA::delete('gcontact', ['addr' => $author]);
1608 Logger::log('Removed contacts for ' . $author);
1614 * @brief Fetch the uri from our database if we already have this item (maybe from ourselves)
1616 * @param string $author Author handle
1617 * @param string $guid Message guid
1618 * @param boolean $onlyfound Only return uri when found in the database
1620 * @return string The constructed uri or the one from our database
1621 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1622 * @throws \ImagickException
1624 private static function getUriFromGuid($author, $guid, $onlyfound = false)
1626 $item = Item::selectFirst(['uri'], ['guid' => $guid]);
1627 if (DBA::isResult($item)) {
1628 return $item["uri"];
1629 } elseif (!$onlyfound) {
1630 $person = self::personByHandle($author);
1632 $parts = parse_url($person['url']);
1633 unset($parts['path']);
1634 $host_url = Network::unparseURL($parts);
1636 return $host_url . '/objects/' . $guid;
1643 * @brief Fetch the guid from our database with a given uri
1645 * @param string $uri Message uri
1646 * @param string $uid Author handle
1648 * @return string The post guid
1649 * @throws \Exception
1651 private static function getGuidFromUri($uri, $uid)
1653 $item = Item::selectFirst(['guid'], ['uri' => $uri, 'uid' => $uid]);
1654 if (DBA::isResult($item)) {
1655 return $item["guid"];
1662 * @brief Find the best importer for a comment, like, ...
1664 * @param string $guid The guid of the item
1666 * @return array|boolean the origin owner of that post - or false
1667 * @throws \Exception
1669 private static function importerForGuid($guid)
1671 $item = Item::selectFirst(['uid'], ['origin' => true, 'guid' => $guid]);
1672 if (DBA::isResult($item)) {
1673 Logger::log("Found user ".$item['uid']." as owner of item ".$guid, Logger::DEBUG);
1674 $contact = DBA::selectFirst('contact', [], ['self' => true, 'uid' => $item['uid']]);
1675 if (DBA::isResult($contact)) {
1683 * @brief Processes an incoming comment
1685 * @param array $importer Array of the importer user
1686 * @param string $sender The sender of the message
1687 * @param object $data The message object
1688 * @param string $xml The original XML of the message
1690 * @return int The message id of the generated comment or "false" if there was an error
1691 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1692 * @throws \ImagickException
1694 private static function receiveComment(array $importer, $sender, $data, $xml)
1696 $author = Strings::escapeTags(XML::unescape($data->author));
1697 $guid = Strings::escapeTags(XML::unescape($data->guid));
1698 $parent_guid = Strings::escapeTags(XML::unescape($data->parent_guid));
1699 $text = XML::unescape($data->text);
1701 if (isset($data->created_at)) {
1702 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
1704 $created_at = DateTimeFormat::utcNow();
1707 if (isset($data->thread_parent_guid)) {
1708 $thread_parent_guid = Strings::escapeTags(XML::unescape($data->thread_parent_guid));
1709 $thr_uri = self::getUriFromGuid("", $thread_parent_guid, true);
1714 $contact = self::allowedContactByHandle($importer, $sender, true);
1719 $message_id = self::messageExists($importer["uid"], $guid);
1724 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
1725 if (!$parent_item) {
1729 $person = self::personByHandle($author);
1730 if (!is_array($person)) {
1731 Logger::log("unable to find author details");
1735 // Fetch the contact id - if we know this contact
1736 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
1740 $datarray["uid"] = $importer["uid"];
1741 $datarray["contact-id"] = $author_contact["cid"];
1742 $datarray["network"] = $author_contact["network"];
1744 $datarray["author-link"] = $person["url"];
1745 $datarray["author-id"] = Contact::getIdForURL($person["url"], 0);
1747 $datarray["owner-link"] = $contact["url"];
1748 $datarray["owner-id"] = Contact::getIdForURL($contact["url"], 0);
1750 $datarray["guid"] = $guid;
1751 $datarray["uri"] = self::getUriFromGuid($author, $guid);
1753 $datarray["verb"] = ACTIVITY_POST;
1754 $datarray["gravity"] = GRAVITY_COMMENT;
1756 if ($thr_uri != "") {
1757 $datarray["parent-uri"] = $thr_uri;
1759 $datarray["parent-uri"] = $parent_item["uri"];
1762 $datarray["object-type"] = ACTIVITY_OBJ_COMMENT;
1764 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
1765 $datarray["source"] = $xml;
1767 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
1769 $datarray["plink"] = self::plink($author, $guid, $parent_item['guid']);
1771 $body = Markdown::toBBCode($text);
1773 $datarray["body"] = self::replacePeopleGuid($body, $person["url"]);
1775 self::fetchGuid($datarray);
1777 // If we are the origin of the parent we store the original data.
1778 // We notify our followers during the item storage.
1779 if ($parent_item["origin"]) {
1780 $datarray['diaspora_signed_text'] = json_encode($data);
1783 $message_id = Item::insert($datarray);
1785 if ($message_id <= 0) {
1790 Logger::log("Stored comment ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
1791 if ($datarray['uid'] == 0) {
1792 Item::distribute($message_id, json_encode($data));
1800 * @brief processes and stores private messages
1802 * @param array $importer Array of the importer user
1803 * @param array $contact The contact of the message
1804 * @param object $data The message object
1805 * @param array $msg Array of the processed message, author handle and key
1806 * @param object $mesg The private message
1807 * @param array $conversation The conversation record to which this message belongs
1809 * @return bool "true" if it was successful
1810 * @throws \Exception
1812 private static function receiveConversationMessage(array $importer, array $contact, $data, $msg, $mesg, $conversation)
1814 $author = Strings::escapeTags(XML::unescape($data->author));
1815 $guid = Strings::escapeTags(XML::unescape($data->guid));
1816 $subject = Strings::escapeTags(XML::unescape($data->subject));
1818 // "diaspora_handle" is the element name from the old version
1819 // "author" is the element name from the new version
1820 if ($mesg->author) {
1821 $msg_author = Strings::escapeTags(XML::unescape($mesg->author));
1822 } elseif ($mesg->diaspora_handle) {
1823 $msg_author = Strings::escapeTags(XML::unescape($mesg->diaspora_handle));
1828 $msg_guid = Strings::escapeTags(XML::unescape($mesg->guid));
1829 $msg_conversation_guid = Strings::escapeTags(XML::unescape($mesg->conversation_guid));
1830 $msg_text = XML::unescape($mesg->text);
1831 $msg_created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($mesg->created_at)));
1833 if ($msg_conversation_guid != $guid) {
1834 Logger::log("message conversation guid does not belong to the current conversation.");
1838 $body = Markdown::toBBCode($msg_text);
1839 $message_uri = $msg_author.":".$msg_guid;
1841 $person = self::personByHandle($msg_author);
1845 if (DBA::exists('mail', ['guid' => $msg_guid, 'uid' => $importer["uid"]])) {
1846 Logger::log("duplicate message already delivered.", Logger::DEBUG);
1850 DBA::insert('mail', [
1851 'uid' => $importer['uid'],
1852 'guid' => $msg_guid,
1853 'convid' => $conversation['id'],
1854 'from-name' => $person['name'],
1855 'from-photo' => $person['photo'],
1856 'from-url' => $person['url'],
1857 'contact-id' => $contact['id'],
1858 'title' => $subject,
1862 'uri' => $message_uri,
1863 'parent-uri' => $author . ':' . $guid,
1864 'created' => $msg_created_at
1867 $message_id = DBA::lastInsertId();
1871 DBA::update('conv', ['updated' => DateTimeFormat::utcNow()], ['id' => $conversation["id"]]);
1874 "type" => NOTIFY_MAIL,
1875 "notify_flags" => $importer["notify-flags"],
1876 "language" => $importer["language"],
1877 "to_name" => $importer["username"],
1878 "to_email" => $importer["email"],
1879 "uid" => $importer["uid"],
1880 "item" => ["id" => $message_id, "title" => $subject, "subject" => $subject, "body" => $body],
1881 "parent" => $conversation["id"],
1882 "source_name" => $person["name"],
1883 "source_link" => $person["url"],
1884 "source_photo" => $person["photo"],
1885 "verb" => ACTIVITY_POST,
1893 * @brief Processes new private messages (answers to private messages are processed elsewhere)
1895 * @param array $importer Array of the importer user
1896 * @param array $msg Array of the processed message, author handle and key
1897 * @param object $data The message object
1899 * @return bool Success
1900 * @throws \Exception
1902 private static function receiveConversation(array $importer, $msg, $data)
1904 $author = Strings::escapeTags(XML::unescape($data->author));
1905 $guid = Strings::escapeTags(XML::unescape($data->guid));
1906 $subject = Strings::escapeTags(XML::unescape($data->subject));
1907 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
1908 $participants = Strings::escapeTags(XML::unescape($data->participants));
1910 $messages = $data->message;
1912 if (!count($messages)) {
1913 Logger::log("empty conversation");
1917 $contact = self::allowedContactByHandle($importer, $msg["author"], true);
1922 $conversation = DBA::selectFirst('conv', [], ['uid' => $importer["uid"], 'guid' => $guid]);
1923 if (!DBA::isResult($conversation)) {
1925 "INSERT INTO `conv` (`uid`, `guid`, `creator`, `created`, `updated`, `subject`, `recips`)
1926 VALUES (%d, '%s', '%s', '%s', '%s', '%s', '%s')",
1927 intval($importer["uid"]),
1929 DBA::escape($author),
1930 DBA::escape($created_at),
1931 DBA::escape(DateTimeFormat::utcNow()),
1932 DBA::escape($subject),
1933 DBA::escape($participants)
1936 $conversation = DBA::selectFirst('conv', [], ['uid' => $importer["uid"], 'guid' => $guid]);
1939 if (!$conversation) {
1940 Logger::log("unable to create conversation.");
1944 foreach ($messages as $mesg) {
1945 self::receiveConversationMessage($importer, $contact, $data, $msg, $mesg, $conversation);
1952 * @brief Processes "like" messages
1954 * @param array $importer Array of the importer user
1955 * @param string $sender The sender of the message
1956 * @param object $data The message object
1958 * @return int The message id of the generated like or "false" if there was an error
1959 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1960 * @throws \ImagickException
1962 private static function receiveLike(array $importer, $sender, $data)
1964 $author = Strings::escapeTags(XML::unescape($data->author));
1965 $guid = Strings::escapeTags(XML::unescape($data->guid));
1966 $parent_guid = Strings::escapeTags(XML::unescape($data->parent_guid));
1967 $parent_type = Strings::escapeTags(XML::unescape($data->parent_type));
1968 $positive = Strings::escapeTags(XML::unescape($data->positive));
1970 // likes on comments aren't supported by Diaspora - only on posts
1971 // But maybe this will be supported in the future, so we will accept it.
1972 if (!in_array($parent_type, ["Post", "Comment"])) {
1976 $contact = self::allowedContactByHandle($importer, $sender, true);
1981 $message_id = self::messageExists($importer["uid"], $guid);
1986 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
1987 if (!$parent_item) {
1991 $person = self::personByHandle($author);
1992 if (!is_array($person)) {
1993 Logger::log("unable to find author details");
1997 // Fetch the contact id - if we know this contact
1998 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
2000 // "positive" = "false" would be a Dislike - wich isn't currently supported by Diaspora
2001 // We would accept this anyhow.
2002 if ($positive == "true") {
2003 $verb = ACTIVITY_LIKE;
2005 $verb = ACTIVITY_DISLIKE;
2010 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
2012 $datarray["uid"] = $importer["uid"];
2013 $datarray["contact-id"] = $author_contact["cid"];
2014 $datarray["network"] = $author_contact["network"];
2016 $datarray["owner-link"] = $datarray["author-link"] = $person["url"];
2017 $datarray["owner-id"] = $datarray["author-id"] = Contact::getIdForURL($person["url"], 0);
2019 $datarray["guid"] = $guid;
2020 $datarray["uri"] = self::getUriFromGuid($author, $guid);
2022 $datarray["verb"] = $verb;
2023 $datarray["gravity"] = GRAVITY_ACTIVITY;
2024 $datarray["parent-uri"] = $parent_item["uri"];
2026 $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
2028 $datarray["body"] = $verb;
2030 // Diaspora doesn't provide a date for likes
2031 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = DateTimeFormat::utcNow();
2033 // like on comments have the comment as parent. So we need to fetch the toplevel parent
2034 if ($parent_item["id"] != $parent_item["parent"]) {
2035 $toplevel = Item::selectFirst(['origin'], ['id' => $parent_item["parent"]]);
2036 $origin = $toplevel["origin"];
2038 $origin = $parent_item["origin"];
2041 // If we are the origin of the parent we store the original data.
2042 // We notify our followers during the item storage.
2044 $datarray['diaspora_signed_text'] = json_encode($data);
2047 $message_id = Item::insert($datarray);
2049 if ($message_id <= 0) {
2054 Logger::log("Stored like ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
2055 if ($datarray['uid'] == 0) {
2056 Item::distribute($message_id, json_encode($data));
2064 * @brief Processes private messages
2066 * @param array $importer Array of the importer user
2067 * @param object $data The message object
2069 * @return bool Success?
2070 * @throws \Exception
2072 private static function receiveMessage(array $importer, $data)
2074 $author = Strings::escapeTags(XML::unescape($data->author));
2075 $guid = Strings::escapeTags(XML::unescape($data->guid));
2076 $conversation_guid = Strings::escapeTags(XML::unescape($data->conversation_guid));
2077 $text = XML::unescape($data->text);
2078 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
2080 $contact = self::allowedContactByHandle($importer, $author, true);
2085 $conversation = null;
2087 $condition = ['uid' => $importer["uid"], 'guid' => $conversation_guid];
2088 $conversation = DBA::selectFirst('conv', [], $condition);
2090 if (!DBA::isResult($conversation)) {
2091 Logger::log("conversation not available.");
2095 $message_uri = $author.":".$guid;
2097 $person = self::personByHandle($author);
2099 Logger::log("unable to find author details");
2103 $body = Markdown::toBBCode($text);
2105 $body = self::replacePeopleGuid($body, $person["url"]);
2109 if (DBA::exists('mail', ['guid' => $guid, 'uid' => $importer["uid"]])) {
2110 Logger::log("duplicate message already delivered.", Logger::DEBUG);
2114 DBA::insert('mail', [
2115 'uid' => $importer['uid'],
2117 'convid' => $conversation['id'],
2118 'from-name' => $person['name'],
2119 'from-photo' => $person['photo'],
2120 'from-url' => $person['url'],
2121 'contact-id' => $contact['id'],
2122 'title' => $conversation['subject'],
2126 'uri' => $message_uri,
2127 'parent-uri' => $author.":".$conversation['guid'],
2128 'created' => $created_at
2131 $message_id = DBA::lastInsertId();
2135 DBA::update('conv', ['updated' => DateTimeFormat::utcNow()], ['id' => $conversation["id"]]);
2138 "type" => NOTIFY_MAIL,
2139 "notify_flags" => $importer["notify-flags"],
2140 "language" => $importer["language"],
2141 "to_name" => $importer["username"],
2142 "to_email" => $importer["email"],
2143 "uid" => $importer["uid"],
2144 "item" => ["id" => $message_id, "title" => $conversation["subject"], "subject" => $conversation["subject"], "body" => $body],
2145 "parent" => $conversation["id"],
2146 "source_name" => $person["name"],
2147 "source_link" => $person["url"],
2148 "source_photo" => $person["photo"],
2149 "verb" => ACTIVITY_POST,
2157 * @brief Processes participations - unsupported by now
2159 * @param array $importer Array of the importer user
2160 * @param object $data The message object
2162 * @return bool always true
2163 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2164 * @throws \ImagickException
2166 private static function receiveParticipation(array $importer, $data)
2168 $author = strtolower(Strings::escapeTags(XML::unescape($data->author)));
2169 $parent_guid = Strings::escapeTags(XML::unescape($data->parent_guid));
2171 $contact_id = Contact::getIdForURL($author);
2173 Logger::log('Contact not found: '.$author);
2177 $person = self::personByHandle($author);
2178 if (!is_array($person)) {
2179 Logger::log("Person not found: ".$author);
2183 $item = Item::selectFirst(['id'], ['guid' => $parent_guid, 'origin' => true, 'private' => false]);
2184 if (!DBA::isResult($item)) {
2185 Logger::log('Item not found, no origin or private: '.$parent_guid);
2189 $author_parts = explode('@', $author);
2190 if (isset($author_parts[1])) {
2191 $server = $author_parts[1];
2193 // Should never happen
2197 Logger::log('Received participation for ID: '.$item['id'].' - Contact: '.$contact_id.' - Server: '.$server, Logger::DEBUG);
2199 if (!DBA::exists('participation', ['iid' => $item['id'], 'server' => $server])) {
2200 DBA::insert('participation', ['iid' => $item['id'], 'cid' => $contact_id, 'fid' => $person['id'], 'server' => $server]);
2203 // Send all existing comments and likes to the requesting server
2204 $comments = Item::select(['id', 'parent', 'verb', 'self'], ['parent' => $item['id']]);
2205 while ($comment = Item::fetch($comments)) {
2206 if ($comment['id'] == $comment['parent']) {
2209 if ($comment['verb'] == ACTIVITY_POST) {
2210 $cmd = $comment['self'] ? 'comment-new' : 'comment-import';
2212 $cmd = $comment['self'] ? 'like' : 'comment-import';
2214 Logger::log("Send ".$cmd." for item ".$comment['id']." to contact ".$contact_id, Logger::DEBUG);
2215 Worker::add(PRIORITY_HIGH, 'Delivery', $cmd, $comment['id'], $contact_id);
2217 DBA::close($comments);
2223 * @brief Processes photos - unneeded
2225 * @param array $importer Array of the importer user
2226 * @param object $data The message object
2228 * @return bool always true
2230 private static function receivePhoto(array $importer, $data)
2232 // There doesn't seem to be a reason for this function,
2233 // since the photo data is transmitted in the status message as well
2238 * @brief Processes poll participations - unssupported
2240 * @param array $importer Array of the importer user
2241 * @param object $data The message object
2243 * @return bool always true
2245 private static function receivePollParticipation(array $importer, $data)
2247 // We don't support polls by now
2252 * @brief Processes incoming profile updates
2254 * @param array $importer Array of the importer user
2255 * @param object $data The message object
2257 * @return bool Success
2258 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2259 * @throws \ImagickException
2261 private static function receiveProfile(array $importer, $data)
2263 $author = strtolower(Strings::escapeTags(XML::unescape($data->author)));
2265 $contact = self::contactByHandle($importer["uid"], $author);
2270 $name = XML::unescape($data->first_name).((strlen($data->last_name)) ? " ".XML::unescape($data->last_name) : "");
2271 $image_url = XML::unescape($data->image_url);
2272 $birthday = XML::unescape($data->birthday);
2273 $gender = XML::unescape($data->gender);
2274 $about = Markdown::toBBCode(XML::unescape($data->bio));
2275 $location = Markdown::toBBCode(XML::unescape($data->location));
2276 $searchable = (XML::unescape($data->searchable) == "true");
2277 $nsfw = (XML::unescape($data->nsfw) == "true");
2278 $tags = XML::unescape($data->tag_string);
2280 $tags = explode("#", $tags);
2283 foreach ($tags as $tag) {
2284 $tag = trim(strtolower($tag));
2290 $keywords = implode(", ", $keywords);
2292 $handle_parts = explode("@", $author);
2293 $nick = $handle_parts[0];
2296 $name = $handle_parts[0];
2299 if (preg_match("|^https?://|", $image_url) === 0) {
2300 $image_url = "http://".$handle_parts[1].$image_url;
2303 Contact::updateAvatar($image_url, $importer["uid"], $contact["id"]);
2305 // Generic birthday. We don't know the timezone. The year is irrelevant.
2307 $birthday = str_replace("1000", "1901", $birthday);
2309 if ($birthday != "") {
2310 $birthday = DateTimeFormat::utc($birthday, "Y-m-d");
2313 // this is to prevent multiple birthday notifications in a single year
2314 // if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
2316 if (substr($birthday, 5) === substr($contact["bd"], 5)) {
2317 $birthday = $contact["bd"];
2320 $fields = ['name' => $name, 'location' => $location,
2321 'name-date' => DateTimeFormat::utcNow(),
2322 'about' => $about, 'gender' => $gender,
2323 'addr' => $author, 'nick' => $nick,
2324 'keywords' => $keywords];
2326 if (!empty($birthday)) {
2327 $fields['bd'] = $birthday;
2330 DBA::update('contact', $fields, ['id' => $contact['id']]);
2332 $gcontact = ["url" => $contact["url"], "network" => Protocol::DIASPORA, "generation" => 2,
2333 "photo" => $image_url, "name" => $name, "location" => $location,
2334 "about" => $about, "birthday" => $birthday, "gender" => $gender,
2335 "addr" => $author, "nick" => $nick, "keywords" => $keywords,
2336 "hide" => !$searchable, "nsfw" => $nsfw];
2338 $gcid = GContact::update($gcontact);
2340 GContact::link($gcid, $importer["uid"], $contact["id"]);
2342 Logger::log("Profile of contact ".$contact["id"]." stored for user ".$importer["uid"], Logger::DEBUG);
2348 * @brief Processes incoming friend requests
2350 * @param array $importer Array of the importer user
2351 * @param array $contact The contact that send the request
2353 * @throws \Exception
2355 private static function receiveRequestMakeFriend(array $importer, array $contact)
2359 if ($contact["rel"] == Contact::SHARING) {
2362 ['rel' => Contact::FRIEND, 'writable' => true],
2363 ['id' => $contact["id"], 'uid' => $importer["uid"]]
2369 * @brief Processes incoming sharing notification
2371 * @param array $importer Array of the importer user
2372 * @param object $data The message object
2374 * @return bool Success
2375 * @throws \Exception
2377 private static function receiveContactRequest(array $importer, $data)
2379 $author = XML::unescape($data->author);
2380 $recipient = XML::unescape($data->recipient);
2382 if (!$author || !$recipient) {
2386 // the current protocol version doesn't know these fields
2387 // That means that we will assume their existance
2388 if (isset($data->following)) {
2389 $following = (XML::unescape($data->following) == "true");
2394 if (isset($data->sharing)) {
2395 $sharing = (XML::unescape($data->sharing) == "true");
2400 $contact = self::contactByHandle($importer["uid"], $author);
2402 // perhaps we were already sharing with this person. Now they're sharing with us.
2403 // That makes us friends.
2406 Logger::log("Author ".$author." (Contact ".$contact["id"].") wants to follow us.", Logger::DEBUG);
2407 self::receiveRequestMakeFriend($importer, $contact);
2409 // refetch the contact array
2410 $contact = self::contactByHandle($importer["uid"], $author);
2412 // If we are now friends, we are sending a share message.
2413 // Normally we needn't to do so, but the first message could have been vanished.
2414 if (in_array($contact["rel"], [Contact::FRIEND])) {
2415 $user = DBA::selectFirst('user', [], ['uid' => $importer["uid"]]);
2416 if (DBA::isResult($user)) {
2417 Logger::log("Sending share message to author ".$author." - Contact: ".$contact["id"]." - User: ".$importer["uid"], Logger::DEBUG);
2418 $ret = self::sendShare($user, $contact);
2423 Logger::log("Author ".$author." doesn't want to follow us anymore.", Logger::DEBUG);
2424 Contact::removeFollower($importer, $contact);
2429 if (!$following && $sharing && in_array($importer["page-flags"], [Contact::PAGE_SOAPBOX, Contact::PAGE_NORMAL])) {
2430 Logger::log("Author ".$author." wants to share with us - but doesn't want to listen. Request is ignored.", Logger::DEBUG);
2432 } elseif (!$following && !$sharing) {
2433 Logger::log("Author ".$author." doesn't want anything - and we don't know the author. Request is ignored.", Logger::DEBUG);
2435 } elseif (!$following && $sharing) {
2436 Logger::log("Author ".$author." wants to share with us.", Logger::DEBUG);
2437 } elseif ($following && $sharing) {
2438 Logger::log("Author ".$author." wants to have a bidirectional conection.", Logger::DEBUG);
2439 } elseif ($following && !$sharing) {
2440 Logger::log("Author ".$author." wants to listen to us.", Logger::DEBUG);
2443 $ret = self::personByHandle($author);
2445 if (!$ret || ($ret["network"] != Protocol::DIASPORA)) {
2446 Logger::log("Cannot resolve diaspora handle ".$author." for ".$recipient);
2450 $batch = (($ret["batch"]) ? $ret["batch"] : implode("/", array_slice(explode("/", $ret["url"]), 0, 3))."/receive/public");
2453 "INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`nurl`,`batch`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
2454 VALUES (%d, '%s', '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s','%s',%d,%d)",
2455 intval($importer["uid"]),
2456 DBA::escape($ret["network"]),
2457 DBA::escape($ret["addr"]),
2458 DateTimeFormat::utcNow(),
2459 DBA::escape($ret["url"]),
2460 DBA::escape(Strings::normaliseLink($ret["url"])),
2461 DBA::escape($batch),
2462 DBA::escape($ret["name"]),
2463 DBA::escape($ret["nick"]),
2464 DBA::escape($ret["photo"]),
2465 DBA::escape($ret["pubkey"]),
2466 DBA::escape($ret["notify"]),
2467 DBA::escape($ret["poll"]),
2472 // find the contact record we just created
2474 $contact_record = self::contactByHandle($importer["uid"], $author);
2476 if (!$contact_record) {
2477 Logger::log("unable to locate newly created contact record.");
2481 Logger::log("Author ".$author." was added as contact number ".$contact_record["id"].".", Logger::DEBUG);
2483 Group::addMember(User::getDefaultGroup($importer['uid'], $ret["network"]), $contact_record['id']);
2485 Contact::updateAvatar($ret["photo"], $importer['uid'], $contact_record["id"], true);
2487 if (in_array($importer["page-flags"], [Contact::PAGE_NORMAL, Contact::PAGE_PRVGROUP])) {
2488 Logger::log("Sending intra message for author ".$author.".", Logger::DEBUG);
2490 $hash = Strings::getRandomHex().(string)time(); // Generate a confirm_key
2493 "INSERT INTO `intro` (`uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime`)
2494 VALUES (%d, %d, %d, %d, '%s', '%s', '%s')",
2495 intval($importer["uid"]),
2496 intval($contact_record["id"]),
2499 DBA::escape(L10n::t("Sharing notification from Diaspora network")),
2501 DBA::escape(DateTimeFormat::utcNow())
2504 // automatic friend approval
2506 Logger::log("Does an automatic friend approval for author ".$author.".", Logger::DEBUG);
2508 Contact::updateAvatar($contact_record["photo"], $importer["uid"], $contact_record["id"]);
2511 * technically they are sharing with us (Contact::SHARING),
2512 * but if our page-type is Profile::PAGE_COMMUNITY or Profile::PAGE_SOAPBOX
2513 * we are going to change the relationship and make them a follower.
2515 if (($importer["page-flags"] == Contact::PAGE_FREELOVE) && $sharing && $following) {
2516 $new_relation = Contact::FRIEND;
2517 } elseif (($importer["page-flags"] == Contact::PAGE_FREELOVE) && $sharing) {
2518 $new_relation = Contact::SHARING;
2520 $new_relation = Contact::FOLLOWER;
2524 "UPDATE `contact` SET `rel` = %d,
2532 intval($new_relation),
2533 DBA::escape(DateTimeFormat::utcNow()),
2534 DBA::escape(DateTimeFormat::utcNow()),
2535 intval($contact_record["id"])
2538 $user = DBA::selectFirst('user', [], ['uid' => $importer["uid"]]);
2539 if (DBA::isResult($user)) {
2540 Logger::log("Sending share message (Relation: ".$new_relation.") to author ".$author." - Contact: ".$contact_record["id"]." - User: ".$importer["uid"], Logger::DEBUG);
2541 $ret = self::sendShare($user, $contact_record);
2543 // Send the profile data, maybe it weren't transmitted before
2544 self::sendProfile($importer["uid"], [$contact_record]);
2552 * @brief Fetches a message with a given guid
2554 * @param string $guid message guid
2555 * @param string $orig_author handle of the original post
2556 * @return array The fetched item
2557 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2558 * @throws \ImagickException
2560 public static function originalItem($guid, $orig_author)
2563 Logger::log('Empty guid. Quitting.');
2567 // Do we already have this item?
2568 $fields = ['body', 'tag', 'app', 'created', 'object-type', 'uri', 'guid',
2569 'author-name', 'author-link', 'author-avatar'];
2570 $condition = ['guid' => $guid, 'visible' => true, 'deleted' => false, 'private' => false];
2571 $item = Item::selectFirst($fields, $condition);
2573 if (DBA::isResult($item)) {
2574 Logger::log("reshared message ".$guid." already exists on system.");
2576 // Maybe it is already a reshared item?
2577 // Then refetch the content, if it is a reshare from a reshare.
2578 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2579 if (self::isReshare($item["body"], true)) {
2581 } elseif (self::isReshare($item["body"], false) || strstr($item["body"], "[share")) {
2582 $item["body"] = Markdown::toBBCode(BBCode::toMarkdown($item["body"]));
2584 $item["body"] = self::replacePeopleGuid($item["body"], $item["author-link"]);
2586 // Add OEmbed and other information to the body
2587 $item["body"] = add_page_info_to_body($item["body"], false, true);
2595 if (!DBA::isResult($item)) {
2596 if (empty($orig_author)) {
2597 Logger::log('Empty author for guid ' . $guid . '. Quitting.');
2601 $server = "https://".substr($orig_author, strpos($orig_author, "@") + 1);
2602 Logger::log("1st try: reshared message ".$guid." will be fetched via SSL from the server ".$server);
2603 $stored = self::storeByGuid($guid, $server);
2606 $server = "http://".substr($orig_author, strpos($orig_author, "@") + 1);
2607 Logger::log("2nd try: reshared message ".$guid." will be fetched without SSL from the server ".$server);
2608 $stored = self::storeByGuid($guid, $server);
2612 $fields = ['body', 'tag', 'app', 'created', 'object-type', 'uri', 'guid',
2613 'author-name', 'author-link', 'author-avatar'];
2614 $condition = ['guid' => $guid, 'visible' => true, 'deleted' => false, 'private' => false];
2615 $item = Item::selectFirst($fields, $condition);
2617 if (DBA::isResult($item)) {
2618 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2619 if (self::isReshare($item["body"], false)) {
2620 $item["body"] = Markdown::toBBCode(BBCode::toMarkdown($item["body"]));
2621 $item["body"] = self::replacePeopleGuid($item["body"], $item["author-link"]);
2632 * @brief Processes a reshare message
2634 * @param array $importer Array of the importer user
2635 * @param object $data The message object
2636 * @param string $xml The original XML of the message
2638 * @return int the message id
2639 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2640 * @throws \ImagickException
2642 private static function receiveReshare(array $importer, $data, $xml)
2644 $author = Strings::escapeTags(XML::unescape($data->author));
2645 $guid = Strings::escapeTags(XML::unescape($data->guid));
2646 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
2647 $root_author = Strings::escapeTags(XML::unescape($data->root_author));
2648 $root_guid = Strings::escapeTags(XML::unescape($data->root_guid));
2649 /// @todo handle unprocessed property "provider_display_name"
2650 $public = Strings::escapeTags(XML::unescape($data->public));
2652 $contact = self::allowedContactByHandle($importer, $author, false);
2657 $message_id = self::messageExists($importer["uid"], $guid);
2662 $original_item = self::originalItem($root_guid, $root_author);
2663 if (!$original_item) {
2667 $orig_url = System::baseUrl()."/display/".$original_item["guid"];
2671 $datarray["uid"] = $importer["uid"];
2672 $datarray["contact-id"] = $contact["id"];
2673 $datarray["network"] = Protocol::DIASPORA;
2675 $datarray["author-link"] = $contact["url"];
2676 $datarray["author-id"] = Contact::getIdForURL($contact["url"], 0);
2678 $datarray["owner-link"] = $datarray["author-link"];
2679 $datarray["owner-id"] = $datarray["author-id"];
2681 $datarray["guid"] = $guid;
2682 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
2684 $datarray["verb"] = ACTIVITY_POST;
2685 $datarray["gravity"] = GRAVITY_PARENT;
2687 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
2688 $datarray["source"] = $xml;
2690 $prefix = share_header(
2691 $original_item["author-name"],
2692 $original_item["author-link"],
2693 $original_item["author-avatar"],
2694 $original_item["guid"],
2695 $original_item["created"],
2698 $datarray["body"] = $prefix.$original_item["body"]."[/share]";
2700 $datarray["tag"] = $original_item["tag"];
2701 $datarray["app"] = $original_item["app"];
2703 $datarray["plink"] = self::plink($author, $guid);
2704 $datarray["private"] = (($public == "false") ? 1 : 0);
2705 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
2707 $datarray["object-type"] = $original_item["object-type"];
2709 self::fetchGuid($datarray);
2710 $message_id = Item::insert($datarray);
2712 self::sendParticipation($contact, $datarray);
2715 Logger::log("Stored reshare ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
2716 if ($datarray['uid'] == 0) {
2717 Item::distribute($message_id);
2726 * @brief Processes retractions
2728 * @param array $importer Array of the importer user
2729 * @param array $contact The contact of the item owner
2730 * @param object $data The message object
2732 * @return bool success
2733 * @throws \Exception
2735 private static function itemRetraction(array $importer, array $contact, $data)
2737 $author = Strings::escapeTags(XML::unescape($data->author));
2738 $target_guid = Strings::escapeTags(XML::unescape($data->target_guid));
2739 $target_type = Strings::escapeTags(XML::unescape($data->target_type));
2741 $person = self::personByHandle($author);
2742 if (!is_array($person)) {
2743 Logger::log("unable to find author detail for ".$author);
2747 if (empty($contact["url"])) {
2748 $contact["url"] = $person["url"];
2751 // Fetch items that are about to be deleted
2752 $fields = ['uid', 'id', 'parent', 'parent-uri', 'author-link', 'file'];
2754 // When we receive a public retraction, we delete every item that we find.
2755 if ($importer['uid'] == 0) {
2756 $condition = ['guid' => $target_guid, 'deleted' => false];
2758 $condition = ['guid' => $target_guid, 'deleted' => false, 'uid' => $importer['uid']];
2761 $r = Item::select($fields, $condition);
2762 if (!DBA::isResult($r)) {
2763 Logger::log("Target guid ".$target_guid." was not found on this system for user ".$importer['uid'].".");
2767 while ($item = Item::fetch($r)) {
2768 if (strstr($item['file'], '[')) {
2769 Logger::log("Target guid " . $target_guid . " for user " . $item['uid'] . " is filed. So it won't be deleted.", Logger::DEBUG);
2773 // Fetch the parent item
2774 $parent = Item::selectFirst(['author-link'], ['id' => $item["parent"]]);
2776 // Only delete it if the parent author really fits
2777 if (!Strings::compareLink($parent["author-link"], $contact["url"]) && !Strings::compareLink($item["author-link"], $contact["url"])) {
2778 Logger::log("Thread author ".$parent["author-link"]." and item author ".$item["author-link"]." don't fit to expected contact ".$contact["url"], Logger::DEBUG);
2782 Item::delete(['id' => $item['id']]);
2784 Logger::log("Deleted target ".$target_guid." (".$item["id"].") from user ".$item["uid"]." parent: ".$item["parent"], Logger::DEBUG);
2791 * @brief Receives retraction messages
2793 * @param array $importer Array of the importer user
2794 * @param string $sender The sender of the message
2795 * @param object $data The message object
2797 * @return bool Success
2798 * @throws \Exception
2800 private static function receiveRetraction(array $importer, $sender, $data)
2802 $target_type = Strings::escapeTags(XML::unescape($data->target_type));
2804 $contact = self::contactByHandle($importer["uid"], $sender);
2805 if (!$contact && (in_array($target_type, ["Contact", "Person"]))) {
2806 Logger::log("cannot find contact for sender: ".$sender." and user ".$importer["uid"]);
2814 Logger::log("Got retraction for ".$target_type.", sender ".$sender." and user ".$importer["uid"], Logger::DEBUG);
2816 switch ($target_type) {
2821 case "StatusMessage":
2822 return self::itemRetraction($importer, $contact, $data);
2824 case "PollParticipation":
2826 // Currently unsupported
2830 Logger::log("Unknown target type ".$target_type);
2837 * @brief Receives status messages
2839 * @param array $importer Array of the importer user
2840 * @param SimpleXMLElement $data The message object
2841 * @param string $xml The original XML of the message
2843 * @return int The message id of the newly created item
2844 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2845 * @throws \ImagickException
2847 private static function receiveStatusMessage(array $importer, SimpleXMLElement $data, $xml)
2849 $author = Strings::escapeTags(XML::unescape($data->author));
2850 $guid = Strings::escapeTags(XML::unescape($data->guid));
2851 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
2852 $public = Strings::escapeTags(XML::unescape($data->public));
2853 $text = XML::unescape($data->text);
2854 $provider_display_name = Strings::escapeTags(XML::unescape($data->provider_display_name));
2856 $contact = self::allowedContactByHandle($importer, $author, false);
2861 $message_id = self::messageExists($importer["uid"], $guid);
2867 if ($data->location) {
2868 foreach ($data->location->children() as $fieldname => $data) {
2869 $address[$fieldname] = Strings::escapeTags(XML::unescape($data));
2873 $body = Markdown::toBBCode($text);
2877 // Attach embedded pictures to the body
2879 foreach ($data->photo as $photo) {
2880 $body = "[img]".XML::unescape($photo->remote_photo_path).
2881 XML::unescape($photo->remote_photo_name)."[/img]\n".$body;
2884 $datarray["object-type"] = ACTIVITY_OBJ_IMAGE;
2886 $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
2888 // Add OEmbed and other information to the body
2889 if (!self::isRedmatrix($contact["url"])) {
2890 $body = add_page_info_to_body($body, false, true);
2894 /// @todo enable support for polls
2895 //if ($data->poll) {
2896 // foreach ($data->poll AS $poll)
2901 /// @todo enable support for events
2903 $datarray["uid"] = $importer["uid"];
2904 $datarray["contact-id"] = $contact["id"];
2905 $datarray["network"] = Protocol::DIASPORA;
2907 $datarray["author-link"] = $contact["url"];
2908 $datarray["author-id"] = Contact::getIdForURL($contact["url"], 0);
2910 $datarray["owner-link"] = $datarray["author-link"];
2911 $datarray["owner-id"] = $datarray["author-id"];
2913 $datarray["guid"] = $guid;
2914 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
2916 $datarray["verb"] = ACTIVITY_POST;
2917 $datarray["gravity"] = GRAVITY_PARENT;
2919 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
2920 $datarray["source"] = $xml;
2922 $datarray["body"] = self::replacePeopleGuid($body, $contact["url"]);
2924 if ($provider_display_name != "") {
2925 $datarray["app"] = $provider_display_name;
2928 $datarray["plink"] = self::plink($author, $guid);
2929 $datarray["private"] = (($public == "false") ? 1 : 0);
2930 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
2932 if (isset($address["address"])) {
2933 $datarray["location"] = $address["address"];
2936 if (isset($address["lat"]) && isset($address["lng"])) {
2937 $datarray["coord"] = $address["lat"]." ".$address["lng"];
2940 self::fetchGuid($datarray);
2941 $message_id = Item::insert($datarray);
2943 self::sendParticipation($contact, $datarray);
2946 Logger::log("Stored item ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
2947 if ($datarray['uid'] == 0) {
2948 Item::distribute($message_id);
2956 /* ************************************************************************************** *
2957 * Here are all the functions that are needed to transmit data with the Diaspora protocol *
2958 * ************************************************************************************** */
2961 * @brief returnes the handle of a contact
2963 * @param array $contact contact array
2965 * @return string the handle in the format user@domain.tld
2966 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2968 private static function myHandle(array $contact)
2970 if (!empty($contact["addr"])) {
2971 return $contact["addr"];
2974 // Normally we should have a filled "addr" field - but in the past this wasn't the case
2975 // So - just in case - we build the the address here.
2976 if ($contact["nickname"] != "") {
2977 $nick = $contact["nickname"];
2979 $nick = $contact["nick"];
2982 return $nick . "@" . substr(System::baseUrl(), strpos(System::baseUrl(), "://") + 3);
2987 * @brief Creates the data for a private message in the new format
2989 * @param string $msg The message that is to be transmitted
2990 * @param array $user The record of the sender
2991 * @param array $contact Target of the communication
2992 * @param string $prvkey The private key of the sender
2993 * @param string $pubkey The public key of the receiver
2995 * @return string The encrypted data
2996 * @throws \Exception
2998 public static function encodePrivateData($msg, array $user, array $contact, $prvkey, $pubkey)
3000 Logger::log("Message: ".$msg, Logger::DATA);
3002 // without a public key nothing will work
3004 Logger::log("pubkey missing: contact id: ".$contact["id"]);
3008 $aes_key = openssl_random_pseudo_bytes(32);
3009 $b_aes_key = base64_encode($aes_key);
3010 $iv = openssl_random_pseudo_bytes(16);
3011 $b_iv = base64_encode($iv);
3013 $ciphertext = self::aesEncrypt($aes_key, $iv, $msg);
3015 $json = json_encode(["iv" => $b_iv, "key" => $b_aes_key]);
3017 $encrypted_key_bundle = "";
3018 openssl_public_encrypt($json, $encrypted_key_bundle, $pubkey);
3020 $json_object = json_encode(
3021 ["aes_key" => base64_encode($encrypted_key_bundle),
3022 "encrypted_magic_envelope" => base64_encode($ciphertext)]
3025 return $json_object;
3029 * @brief Creates the envelope for the "fetch" endpoint and for the new format
3031 * @param string $msg The message that is to be transmitted
3032 * @param array $user The record of the sender
3034 * @return string The envelope
3035 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3037 public static function buildMagicEnvelope($msg, array $user)
3039 $b64url_data = Strings::base64UrlEncode($msg);
3040 $data = str_replace(["\n", "\r", " ", "\t"], ["", "", "", ""], $b64url_data);
3042 $key_id = Strings::base64UrlEncode(self::myHandle($user));
3043 $type = "application/xml";
3044 $encoding = "base64url";
3045 $alg = "RSA-SHA256";
3046 $signable_data = $data.".".Strings::base64UrlEncode($type).".".Strings::base64UrlEncode($encoding).".".Strings::base64UrlEncode($alg);
3048 // Fallback if the private key wasn't transmitted in the expected field
3049 if ($user['uprvkey'] == "") {
3050 $user['uprvkey'] = $user['prvkey'];
3053 $signature = Crypto::rsaSign($signable_data, $user["uprvkey"]);
3054 $sig = Strings::base64UrlEncode($signature);
3056 $xmldata = ["me:env" => ["me:data" => $data,
3057 "@attributes" => ["type" => $type],
3058 "me:encoding" => $encoding,
3061 "@attributes2" => ["key_id" => $key_id]]];
3063 $namespaces = ["me" => "http://salmon-protocol.org/ns/magic-env"];
3065 return XML::fromArray($xmldata, $xml, false, $namespaces);
3069 * @brief Create the envelope for a message
3071 * @param string $msg The message that is to be transmitted
3072 * @param array $user The record of the sender
3073 * @param array $contact Target of the communication
3074 * @param string $prvkey The private key of the sender
3075 * @param string $pubkey The public key of the receiver
3076 * @param bool $public Is the message public?
3078 * @return string The message that will be transmitted to other servers
3079 * @throws \Exception
3081 public static function buildMessage($msg, array $user, array $contact, $prvkey, $pubkey, $public = false)
3083 // The message is put into an envelope with the sender's signature
3084 $envelope = self::buildMagicEnvelope($msg, $user);
3086 // Private messages are put into a second envelope, encrypted with the receivers public key
3088 $envelope = self::encodePrivateData($envelope, $user, $contact, $prvkey, $pubkey);
3095 * @brief Creates a signature for a message
3097 * @param array $owner the array of the owner of the message
3098 * @param array $message The message that is to be signed
3100 * @return string The signature
3102 private static function signature($owner, $message)
3105 unset($sigmsg["author_signature"]);
3106 unset($sigmsg["parent_author_signature"]);
3108 $signed_text = implode(";", $sigmsg);
3110 return base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3114 * @brief Transmit a message to a target server
3116 * @param array $owner the array of the item owner
3117 * @param array $contact Target of the communication
3118 * @param string $envelope The message that is to be transmitted
3119 * @param bool $public_batch Is it a public post?
3120 * @param bool $queue_run Is the transmission called from the queue?
3121 * @param string $guid message guid
3123 * @param bool $no_queue
3124 * @return int Result of the transmission
3125 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3126 * @throws \ImagickException
3128 public static function transmit(array $owner, array $contact, $envelope, $public_batch, $queue_run = false, $guid = "", $no_queue = false)
3132 $enabled = intval(Config::get("system", "diaspora_enabled"));
3137 $logid = Strings::getRandomHex(4);
3139 $dest_url = ($public_batch ? $contact["batch"] : $contact["notify"]);
3141 // We always try to use the data from the fcontact table.
3142 // This is important for transmitting data to Friendica servers.
3143 if (!empty($contact['addr'])) {
3144 $fcontact = self::personByHandle($contact['addr']);
3145 if (!empty($fcontact)) {
3146 $dest_url = ($public_batch ? $fcontact["batch"] : $fcontact["notify"]);
3151 Logger::log("no url for contact: ".$contact["id"]." batch mode =".$public_batch);
3155 Logger::log("transmit: ".$logid."-".$guid." ".$dest_url);
3157 if (!$queue_run && Queue::wasDelayed($contact["id"])) {
3160 if (!intval(Config::get("system", "diaspora_test"))) {
3161 $content_type = (($public_batch) ? "application/magic-envelope+xml" : "application/json");
3163 $postResult = Network::post($dest_url."/", $envelope, ["Content-Type: ".$content_type]);
3164 $return_code = $postResult->getReturnCode();
3166 Logger::log("test_mode");
3171 Logger::log("transmit: ".$logid."-".$guid." to ".$dest_url." returns: ".$return_code);
3173 if (!$return_code || (($return_code == 503) && (stristr($postResult->getHeader(), "retry-after")))) {
3174 if (!$no_queue && !empty($contact['contact-type']) && ($contact['contact-type'] != Contact::ACCOUNT_TYPE_RELAY)) {
3175 Logger::log("queue message");
3176 // queue message for redelivery
3177 Queue::add($contact["id"], Protocol::DIASPORA, $envelope, $public_batch, $guid);
3180 // The message could not be delivered. We mark the contact as "dead"
3181 Contact::markForArchival($contact);
3182 } elseif (($return_code >= 200) && ($return_code <= 299)) {
3183 // We successfully delivered a message, the contact is alive
3184 Contact::unmarkForArchival($contact);
3187 return $return_code ? $return_code : -1;
3192 * @brief Build the post xml
3194 * @param string $type The message type
3195 * @param array $message The message data
3197 * @return string The post XML
3199 public static function buildPostXml($type, $message)
3201 $data = [$type => $message];
3203 return XML::fromArray($data, $xml);
3207 * @brief Builds and transmit messages
3209 * @param array $owner the array of the item owner
3210 * @param array $contact Target of the communication
3211 * @param string $type The message type
3212 * @param array $message The message data
3213 * @param bool $public_batch Is it a public post?
3214 * @param string $guid message guid
3215 * @param bool $spool Should the transmission be spooled or transmitted?
3217 * @return int Result of the transmission
3218 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3219 * @throws \ImagickException
3221 private static function buildAndTransmit(array $owner, array $contact, $type, $message, $public_batch = false, $guid = "", $spool = false)
3223 $msg = self::buildPostXml($type, $message);
3225 Logger::log('message: '.$msg, Logger::DATA);
3226 Logger::log('send guid '.$guid, Logger::DEBUG);
3228 // Fallback if the private key wasn't transmitted in the expected field
3229 if (empty($owner['uprvkey'])) {
3230 $owner['uprvkey'] = $owner['prvkey'];
3233 $envelope = self::buildMessage($msg, $owner, $contact, $owner['uprvkey'], $contact['pubkey'], $public_batch);
3236 Queue::add($contact['id'], Protocol::DIASPORA, $envelope, $public_batch, $guid);
3239 $return_code = self::transmit($owner, $contact, $envelope, $public_batch, false, $guid);
3242 Logger::log("guid: ".$guid." result ".$return_code, Logger::DEBUG);
3244 return $return_code;
3248 * @brief sends a participation (Used to get all further updates)
3250 * @param array $contact Target of the communication
3251 * @param array $item Item array
3253 * @return int The result of the transmission
3254 * @throws \Exception
3256 private static function sendParticipation(array $contact, array $item)
3258 // Don't send notifications for private postings
3259 if ($item['private']) {
3263 $cachekey = "diaspora:sendParticipation:".$item['guid'];
3265 $result = Cache::get($cachekey);
3266 if (!is_null($result)) {
3270 // Fetch some user id to have a valid handle to transmit the participation.
3271 // In fact it doesn't matter which user sends this - but it is needed by the protocol.
3272 // If the item belongs to a user, we take this user id.
3273 if ($item['uid'] == 0) {
3274 $condition = ['verified' => true, 'blocked' => false, 'account_removed' => false, 'account_expired' => false];
3275 $first_user = DBA::selectFirst('user', ['uid'], $condition);
3276 $owner = User::getOwnerDataById($first_user['uid']);
3278 $owner = User::getOwnerDataById($item['uid']);
3281 $author = self::myHandle($owner);
3283 $message = ["author" => $author,
3284 "guid" => System::createUUID(),
3285 "parent_type" => "Post",
3286 "parent_guid" => $item["guid"]];
3288 Logger::log("Send participation for ".$item["guid"]." by ".$author, Logger::DEBUG);
3290 // It doesn't matter what we store, we only want to avoid sending repeated notifications for the same item
3291 Cache::set($cachekey, $item["guid"], Cache::QUARTER_HOUR);
3293 return self::buildAndTransmit($owner, $contact, "participation", $message);
3297 * @brief sends an account migration
3299 * @param array $owner the array of the item owner
3300 * @param array $contact Target of the communication
3301 * @param int $uid User ID
3303 * @return int The result of the transmission
3304 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3305 * @throws \ImagickException
3307 public static function sendAccountMigration(array $owner, array $contact, $uid)
3309 $old_handle = PConfig::get($uid, 'system', 'previous_addr');
3310 $profile = self::createProfileData($uid);
3312 $signed_text = 'AccountMigration:'.$old_handle.':'.$profile['author'];
3313 $signature = base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3315 $message = ["author" => $old_handle,
3316 "profile" => $profile,
3317 "signature" => $signature];
3319 Logger::log("Send account migration ".print_r($message, true), Logger::DEBUG);
3321 return self::buildAndTransmit($owner, $contact, "account_migration", $message);
3325 * @brief Sends a "share" message
3327 * @param array $owner the array of the item owner
3328 * @param array $contact Target of the communication
3330 * @return int The result of the transmission
3331 * @throws \Exception
3333 public static function sendShare(array $owner, array $contact)
3336 * @todo support the different possible combinations of "following" and "sharing"
3337 * Currently, Diaspora only interprets the "sharing" field
3339 * Before switching this code productive, we have to check all "sendShare" calls if "rel" is set correctly
3343 switch ($contact["rel"]) {
3344 case Contact::FRIEND:
3348 case Contact::SHARING:
3352 case Contact::FOLLOWER:
3358 $message = ["author" => self::myHandle($owner),
3359 "recipient" => $contact["addr"],
3360 "following" => "true",
3361 "sharing" => "true"];
3363 Logger::log("Send share ".print_r($message, true), Logger::DEBUG);
3365 return self::buildAndTransmit($owner, $contact, "contact", $message);
3369 * @brief sends an "unshare"
3371 * @param array $owner the array of the item owner
3372 * @param array $contact Target of the communication
3374 * @return int The result of the transmission
3375 * @throws \Exception
3377 public static function sendUnshare(array $owner, array $contact)
3379 $message = ["author" => self::myHandle($owner),
3380 "recipient" => $contact["addr"],
3381 "following" => "false",
3382 "sharing" => "false"];
3384 Logger::log("Send unshare ".print_r($message, true), Logger::DEBUG);
3386 return self::buildAndTransmit($owner, $contact, "contact", $message);
3390 * @brief Checks a message body if it is a reshare
3392 * @param string $body The message body that is to be check
3393 * @param bool $complete Should it be a complete check or a simple check?
3395 * @return array|bool Reshare details or "false" if no reshare
3396 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3397 * @throws \ImagickException
3399 public static function isReshare($body, $complete = true)
3401 $body = trim($body);
3403 // Skip if it isn't a pure repeated messages
3404 // Does it start with a share?
3405 if ((strpos($body, "[share") > 0) && $complete) {
3409 // Does it end with a share?
3410 if (strlen($body) > (strrpos($body, "[/share]") + 8)) {
3414 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", "$1", $body);
3415 // Skip if there is no shared message in there
3416 if ($body == $attributes) {
3420 // If we don't do the complete check we quit here
3423 preg_match("/guid='(.*?)'/ism", $attributes, $matches);
3424 if (!empty($matches[1])) {
3425 $guid = $matches[1];
3428 preg_match('/guid="(.*?)"/ism', $attributes, $matches);
3429 if (!empty($matches[1])) {
3430 $guid = $matches[1];
3433 if (($guid != "") && $complete) {
3434 $condition = ['guid' => $guid, 'network' => [Protocol::DFRN, Protocol::DIASPORA]];
3435 $item = Item::selectFirst(['contact-id'], $condition);
3436 if (DBA::isResult($item)) {
3438 $ret["root_handle"] = self::handleFromContact($item["contact-id"]);
3439 $ret["root_guid"] = $guid;
3441 } elseif ($complete) {
3442 // We are resharing something that isn't a DFRN or Diaspora post.
3443 // So we have to return "false" on "$complete" to not trigger a reshare.
3446 } elseif (($guid == "") && $complete) {
3450 $ret["root_guid"] = $guid;
3453 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
3454 if (!empty($matches[1])) {
3455 $profile = $matches[1];
3458 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
3459 if (!empty($matches[1])) {
3460 $profile = $matches[1];
3465 if ($profile != "") {
3466 if (Contact::getIdForURL($profile)) {
3467 $author = Contact::getDetailsByURL($profile);
3468 $ret["root_handle"] = $author['addr'];
3472 if (empty($ret) && !$complete) {
3480 * @brief Create an event array
3482 * @param integer $event_id The id of the event
3484 * @return array with event data
3485 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3487 private static function buildEvent($event_id)
3489 $r = q("SELECT `guid`, `uid`, `start`, `finish`, `nofinish`, `summary`, `desc`, `location`, `adjust` FROM `event` WHERE `id` = %d", intval($event_id));
3490 if (!DBA::isResult($r)) {
3498 $r = q("SELECT `timezone` FROM `user` WHERE `uid` = %d", intval($event['uid']));
3499 if (!DBA::isResult($r)) {
3505 $r = q("SELECT `addr`, `nick` FROM `contact` WHERE `uid` = %d AND `self`", intval($event['uid']));
3506 if (!DBA::isResult($r)) {
3512 $eventdata['author'] = self::myHandle($owner);
3514 if ($event['guid']) {
3515 $eventdata['guid'] = $event['guid'];
3518 $mask = DateTimeFormat::ATOM;
3520 /// @todo - establish "all day" events in Friendica
3521 $eventdata["all_day"] = "false";
3523 $eventdata['timezone'] = 'UTC';
3524 if (!$event['adjust'] && $user['timezone']) {
3525 $eventdata['timezone'] = $user['timezone'];
3528 if ($event['start']) {
3529 $eventdata['start'] = DateTimeFormat::convert($event['start'], "UTC", $eventdata['timezone'], $mask);
3531 if ($event['finish'] && !$event['nofinish']) {
3532 $eventdata['end'] = DateTimeFormat::convert($event['finish'], "UTC", $eventdata['timezone'], $mask);
3534 if ($event['summary']) {
3535 $eventdata['summary'] = html_entity_decode(BBCode::toMarkdown($event['summary']));
3537 if ($event['desc']) {
3538 $eventdata['description'] = html_entity_decode(BBCode::toMarkdown($event['desc']));
3540 if ($event['location']) {
3541 $event['location'] = preg_replace("/\[map\](.*?)\[\/map\]/ism", '$1', $event['location']);
3542 $coord = Map::getCoordinates($event['location']);
3545 $location["address"] = html_entity_decode(BBCode::toMarkdown($event['location']));
3546 if (!empty($coord['lat']) && !empty($coord['lon'])) {
3547 $location["lat"] = $coord['lat'];
3548 $location["lng"] = $coord['lon'];
3550 $location["lat"] = 0;
3551 $location["lng"] = 0;
3553 $eventdata['location'] = $location;
3560 * @brief Create a post (status message or reshare)
3562 * @param array $item The item that will be exported
3563 * @param array $owner the array of the item owner
3566 * 'type' -> Message type ("status_message" or "reshare")
3567 * 'message' -> Array of XML elements of the status
3568 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3569 * @throws \ImagickException
3571 public static function buildStatus(array $item, array $owner)
3573 $cachekey = "diaspora:buildStatus:".$item['guid'];
3575 $result = Cache::get($cachekey);
3576 if (!is_null($result)) {
3580 $myaddr = self::myHandle($owner);
3582 $public = ($item["private"] ? "false" : "true");
3584 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
3586 // Detect a share element and do a reshare
3587 if (!$item['private'] && ($ret = self::isReshare($item["body"]))) {
3588 $message = ["author" => $myaddr,
3589 "guid" => $item["guid"],
3590 "created_at" => $created,
3591 "root_author" => $ret["root_handle"],
3592 "root_guid" => $ret["root_guid"],
3593 "provider_display_name" => $item["app"],
3594 "public" => $public];
3598 $title = $item["title"];
3599 $body = $item["body"];
3601 if ($item['author-link'] != $item['owner-link']) {
3602 require_once 'mod/share.php';
3603 $body = share_header($item['author-name'], $item['author-link'], $item['author-avatar'],
3604 "", $item['created'], $item['plink']) . $body . '[/share]';
3607 // convert to markdown
3608 $body = html_entity_decode(BBCode::toMarkdown($body));
3611 if (strlen($title)) {
3612 $body = "## ".html_entity_decode($title)."\n\n".$body;
3615 if ($item["attach"]) {
3616 $cnt = preg_match_all('/href=\"(.*?)\"(.*?)title=\"(.*?)\"/ism', $item["attach"], $matches, PREG_SET_ORDER);
3618 $body .= "\n".L10n::t("Attachments:")."\n";
3619 foreach ($matches as $mtch) {
3620 $body .= "[".$mtch[3]."](".$mtch[1].")\n";
3627 if ($item["location"] != "")
3628 $location["address"] = $item["location"];
3630 if ($item["coord"] != "") {
3631 $coord = explode(" ", $item["coord"]);
3632 $location["lat"] = $coord[0];
3633 $location["lng"] = $coord[1];
3636 $message = ["author" => $myaddr,
3637 "guid" => $item["guid"],
3638 "created_at" => $created,
3639 "public" => $public,
3641 "provider_display_name" => $item["app"],
3642 "location" => $location];
3644 // Diaspora rejects messages when they contain a location without "lat" or "lng"
3645 if (!isset($location["lat"]) || !isset($location["lng"])) {
3646 unset($message["location"]);
3649 if ($item['event-id'] > 0) {
3650 $event = self::buildEvent($item['event-id']);
3651 if (count($event)) {
3652 $message['event'] = $event;
3654 if (!empty($event['location']['address']) &&
3655 !empty($event['location']['lat']) &&
3656 !empty($event['location']['lng'])) {
3657 $message['location'] = $event['location'];
3660 /// @todo Once Diaspora supports it, we will remove the body and the location hack above
3661 // $message['text'] = '';
3665 $type = "status_message";
3668 $msg = ["type" => $type, "message" => $message];
3670 Cache::set($cachekey, $msg, Cache::QUARTER_HOUR);
3676 * @brief Sends a post
3678 * @param array $item The item that will be exported
3679 * @param array $owner the array of the item owner
3680 * @param array $contact Target of the communication
3681 * @param bool $public_batch Is it a public post?
3683 * @return int The result of the transmission
3684 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3685 * @throws \ImagickException
3687 public static function sendStatus(array $item, array $owner, array $contact, $public_batch = false)
3689 $status = self::buildStatus($item, $owner);
3691 return self::buildAndTransmit($owner, $contact, $status["type"], $status["message"], $public_batch, $item["guid"]);
3695 * @brief Creates a "like" object
3697 * @param array $item The item that will be exported
3698 * @param array $owner the array of the item owner
3700 * @return array The data for a "like"
3701 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3703 private static function constructLike(array $item, array $owner)
3705 $parent = Item::selectFirst(['guid', 'uri', 'parent-uri'], ['uri' => $item["thr-parent"]]);
3706 if (!DBA::isResult($parent)) {
3710 $target_type = ($parent["uri"] === $parent["parent-uri"] ? "Post" : "Comment");
3712 if ($item['verb'] === ACTIVITY_LIKE) {
3714 } elseif ($item['verb'] === ACTIVITY_DISLIKE) {
3715 $positive = "false";
3718 return(["author" => self::myHandle($owner),
3719 "guid" => $item["guid"],
3720 "parent_guid" => $parent["guid"],
3721 "parent_type" => $target_type,
3722 "positive" => $positive,
3723 "author_signature" => ""]);
3727 * @brief Creates an "EventParticipation" object
3729 * @param array $item The item that will be exported
3730 * @param array $owner the array of the item owner
3732 * @return array The data for an "EventParticipation"
3733 * @throws \Exception
3735 private static function constructAttend(array $item, array $owner)
3737 $parent = Item::selectFirst(['guid', 'uri', 'parent-uri'], ['uri' => $item["thr-parent"]]);
3738 if (!DBA::isResult($parent)) {
3742 switch ($item['verb']) {
3743 case ACTIVITY_ATTEND:
3744 $attend_answer = 'accepted';
3746 case ACTIVITY_ATTENDNO:
3747 $attend_answer = 'declined';
3749 case ACTIVITY_ATTENDMAYBE:
3750 $attend_answer = 'tentative';
3753 Logger::log('Unknown verb '.$item['verb'].' in item '.$item['guid']);
3757 return(["author" => self::myHandle($owner),
3758 "guid" => $item["guid"],
3759 "parent_guid" => $parent["guid"],
3760 "status" => $attend_answer,
3761 "author_signature" => ""]);
3765 * @brief Creates the object for a comment
3767 * @param array $item The item that will be exported
3768 * @param array $owner the array of the item owner
3770 * @return array The data for a comment
3771 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3773 private static function constructComment(array $item, array $owner)
3775 $cachekey = "diaspora:constructComment:".$item['guid'];
3777 $result = Cache::get($cachekey);
3778 if (!is_null($result)) {
3782 $parent = Item::selectFirst(['guid'], ['id' => $item["parent"], 'parent' => $item["parent"]]);
3783 if (!DBA::isResult($parent)) {
3787 $text = html_entity_decode(BBCode::toMarkdown($item["body"]));
3788 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
3790 $comment = ["author" => self::myHandle($owner),
3791 "guid" => $item["guid"],
3792 "created_at" => $created,
3793 "parent_guid" => $parent["guid"],
3795 "author_signature" => ""];
3797 // Send the thread parent guid only if it is a threaded comment
3798 if ($item['thr-parent'] != $item['parent-uri']) {
3799 $comment['thread_parent_guid'] = self::getGuidFromUri($item['thr-parent'], $item['uid']);
3802 Cache::set($cachekey, $comment, Cache::QUARTER_HOUR);
3808 * @brief Send a like or a comment
3810 * @param array $item The item that will be exported
3811 * @param array $owner the array of the item owner
3812 * @param array $contact Target of the communication
3813 * @param bool $public_batch Is it a public post?
3815 * @return int The result of the transmission
3816 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3817 * @throws \ImagickException
3819 public static function sendFollowup(array $item, array $owner, array $contact, $public_batch = false)
3821 if (in_array($item['verb'], [ACTIVITY_ATTEND, ACTIVITY_ATTENDNO, ACTIVITY_ATTENDMAYBE])) {
3822 $message = self::constructAttend($item, $owner);
3823 $type = "event_participation";
3824 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3825 $message = self::constructLike($item, $owner);
3827 } elseif (!in_array($item["verb"], [ACTIVITY_FOLLOW])) {
3828 $message = self::constructComment($item, $owner);
3832 if (empty($message)) {
3836 $message["author_signature"] = self::signature($owner, $message);
3838 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
3842 * @brief Creates a message from a signature record entry
3844 * @param array $item The item that will be exported
3845 * @return array The message
3847 private static function messageFromSignature(array $item)
3849 // Split the signed text
3850 $signed_parts = explode(";", $item['signed_text']);
3852 if ($item["deleted"]) {
3853 $message = ["author" => $item['signer'],
3854 "target_guid" => $signed_parts[0],
3855 "target_type" => $signed_parts[1]];
3856 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3857 $message = ["author" => $signed_parts[4],
3858 "guid" => $signed_parts[1],
3859 "parent_guid" => $signed_parts[3],
3860 "parent_type" => $signed_parts[2],
3861 "positive" => $signed_parts[0],
3862 "author_signature" => $item['signature'],
3863 "parent_author_signature" => ""];
3865 // Remove the comment guid
3866 $guid = array_shift($signed_parts);
3868 // Remove the parent guid
3869 $parent_guid = array_shift($signed_parts);
3871 // Remove the handle
3872 $handle = array_pop($signed_parts);
3874 // Glue the parts together
3875 $text = implode(";", $signed_parts);
3877 $message = ["author" => $handle,
3879 "parent_guid" => $parent_guid,
3880 "text" => implode(";", $signed_parts),
3881 "author_signature" => $item['signature'],
3882 "parent_author_signature" => ""];
3888 * @brief Relays messages (like, comment, retraction) to other servers if we are the thread owner
3890 * @param array $item The item that will be exported
3891 * @param array $owner the array of the item owner
3892 * @param array $contact Target of the communication
3893 * @param bool $public_batch Is it a public post?
3895 * @return int The result of the transmission
3896 * @throws \Exception
3898 public static function sendRelay(array $item, array $owner, array $contact, $public_batch = false)
3900 if ($item["deleted"]) {
3901 return self::sendRetraction($item, $owner, $contact, $public_batch, true);
3902 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3908 Logger::log("Got relayable data ".$type." for item ".$item["guid"]." (".$item["id"].")", Logger::DEBUG);
3910 // Old way - is used by the internal Friendica functions
3911 /// @todo Change all signatur storing functions to the new format
3912 if ($item['signed_text'] && $item['signature'] && $item['signer']) {
3913 $message = self::messageFromSignature($item);
3915 $msg = json_decode($item['signed_text'], true);
3918 if (is_array($msg)) {
3919 foreach ($msg as $field => $data) {
3920 if (!$item["deleted"]) {
3921 if ($field == "diaspora_handle") {
3924 if ($field == "target_type") {
3925 $field = "parent_type";
3929 $message[$field] = $data;
3932 Logger::log("Signature text for item ".$item["guid"]." (".$item["id"].") couldn't be extracted: ".$item['signed_text'], Logger::DEBUG);
3936 $message["parent_author_signature"] = self::signature($owner, $message);
3938 Logger::log("Relayed data ".print_r($message, true), Logger::DEBUG);
3940 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
3944 * @brief Sends a retraction (deletion) of a message, like or comment
3946 * @param array $item The item that will be exported
3947 * @param array $owner the array of the item owner
3948 * @param array $contact Target of the communication
3949 * @param bool $public_batch Is it a public post?
3950 * @param bool $relay Is the retraction transmitted from a relay?
3952 * @return int The result of the transmission
3953 * @throws \Exception
3955 public static function sendRetraction(array $item, array $owner, array $contact, $public_batch = false, $relay = false)
3957 $itemaddr = self::handleFromContact($item["contact-id"], $item["author-id"]);
3959 $msg_type = "retraction";
3961 if ($item['id'] == $item['parent']) {
3962 $target_type = "Post";
3963 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3964 $target_type = "Like";
3966 $target_type = "Comment";
3969 $message = ["author" => $itemaddr,
3970 "target_guid" => $item['guid'],
3971 "target_type" => $target_type];
3973 Logger::log("Got message ".print_r($message, true), Logger::DEBUG);
3975 return self::buildAndTransmit($owner, $contact, $msg_type, $message, $public_batch, $item["guid"]);
3979 * @brief Sends a mail
3981 * @param array $item The item that will be exported
3982 * @param array $owner The owner
3983 * @param array $contact Target of the communication
3985 * @return int The result of the transmission
3986 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3987 * @throws \ImagickException
3989 public static function sendMail(array $item, array $owner, array $contact)
3991 $myaddr = self::myHandle($owner);
3993 $cnv = DBA::selectFirst('conv', [], ['id' => $item["convid"], 'uid' => $item["uid"]]);
3994 if (!DBA::isResult($cnv)) {
3995 Logger::log("conversation not found.");
4000 "author" => $cnv["creator"],
4001 "guid" => $cnv["guid"],
4002 "subject" => $cnv["subject"],
4003 "created_at" => DateTimeFormat::utc($cnv['created'], DateTimeFormat::ATOM),
4004 "participants" => $cnv["recips"]
4007 $body = BBCode::toMarkdown($item["body"]);
4008 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
4011 "author" => $myaddr,
4012 "guid" => $item["guid"],
4013 "conversation_guid" => $cnv["guid"],
4015 "created_at" => $created,
4018 if ($item["reply"]) {
4023 "author" => $cnv["creator"],
4024 "guid" => $cnv["guid"],
4025 "subject" => $cnv["subject"],
4026 "created_at" => DateTimeFormat::utc($cnv['created'], DateTimeFormat::ATOM),
4027 "participants" => $cnv["recips"],
4030 $type = "conversation";
4033 return self::buildAndTransmit($owner, $contact, $type, $message, false, $item["guid"]);
4037 * @brief Split a name into first name and last name
4039 * @param string $name The name
4041 * @return array The array with "first" and "last"
4043 public static function splitName($name) {
4044 $name = trim($name);
4046 // Is the name longer than 64 characters? Then cut the rest of it.
4047 if (strlen($name) > 64) {
4048 if ((strpos($name, ' ') <= 64) && (strpos($name, ' ') !== false)) {
4049 $name = trim(substr($name, 0, strrpos(substr($name, 0, 65), ' ')));
4051 $name = substr($name, 0, 64);
4055 // Take the first word as first name
4056 $first = ((strpos($name, ' ') ? trim(substr($name, 0, strpos($name, ' '))) : $name));
4057 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4058 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4059 return ['first' => $first, 'last' => $last];
4062 // Take the last word as last name
4063 $first = ((strrpos($name, ' ') ? trim(substr($name, 0, strrpos($name, ' '))) : $name));
4064 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4066 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4067 return ['first' => $first, 'last' => $last];
4070 // Take the first 32 characters if there is no space in the first 32 characters
4071 if ((strpos($name, ' ') > 32) || (strpos($name, ' ') === false)) {
4072 $first = substr($name, 0, 32);
4073 $last = substr($name, 32);
4074 return ['first' => $first, 'last' => $last];
4077 $first = trim(substr($name, 0, strrpos(substr($name, 0, 33), ' ')));
4078 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4080 // Check if the last name is longer than 32 characters
4081 if (strlen($last) > 32) {
4082 if (strpos($last, ' ') <= 32) {
4083 $last = trim(substr($last, 0, strrpos(substr($last, 0, 33), ' ')));
4085 $last = substr($last, 0, 32);
4089 return ['first' => $first, 'last' => $last];
4093 * @brief Create profile data
4095 * @param int $uid The user id
4097 * @return array The profile data
4098 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
4100 private static function createProfileData($uid)
4103 "SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.*, `user`.`prvkey` AS `uprvkey`, `contact`.`addr`
4105 INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
4106 INNER JOIN `contact` ON `profile`.`uid` = `contact`.`uid`
4107 WHERE `user`.`uid` = %d AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
4116 $handle = $profile["addr"];
4118 $split_name = self::splitName($profile['name']);
4119 $first = $split_name['first'];
4120 $last = $split_name['last'];
4122 $large = System::baseUrl().'/photo/custom/300/'.$profile['uid'].'.jpg';
4123 $medium = System::baseUrl().'/photo/custom/100/'.$profile['uid'].'.jpg';
4124 $small = System::baseUrl().'/photo/custom/50/' .$profile['uid'].'.jpg';
4125 $searchable = (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false');
4131 if ($searchable === 'true') {
4134 if ($profile['dob'] && ($profile['dob'] > '0000-00-00')) {
4135 list($year, $month, $day) = sscanf($profile['dob'], '%4d-%2d-%2d');
4139 $dob = DateTimeFormat::utc($year . '-' . $month . '-'. $day, 'Y-m-d');
4142 $about = $profile['about'];
4143 $about = strip_tags(BBCode::convert($about));
4145 $location = Profile::formatLocation($profile);
4147 if ($profile['pub_keywords']) {
4148 $kw = str_replace(',', ' ', $profile['pub_keywords']);
4149 $kw = str_replace(' ', ' ', $kw);
4150 $arr = explode(' ', $profile['pub_keywords']);
4152 for ($x = 0; $x < 5; $x ++) {
4153 if (!empty($arr[$x])) {
4154 $tags .= '#'. trim($arr[$x]) .' ';
4159 $tags = trim($tags);
4162 return ["author" => $handle,
4163 "first_name" => $first,
4164 "last_name" => $last,
4165 "image_url" => $large,
4166 "image_url_medium" => $medium,
4167 "image_url_small" => $small,
4169 "gender" => $profile['gender'],
4171 "location" => $location,
4172 "searchable" => $searchable,
4174 "tag_string" => $tags];
4178 * @brief Sends profile data
4180 * @param int $uid The user id
4181 * @param bool $recips optional, default false
4183 * @throws \Exception
4185 public static function sendProfile($uid, $recips = false)
4191 $owner = User::getOwnerDataById($uid);
4198 "SELECT `id`,`name`,`network`,`pubkey`,`notify` FROM `contact` WHERE `network` = '%s'
4199 AND `uid` = %d AND `rel` != %d",
4200 DBA::escape(Protocol::DIASPORA),
4202 intval(Contact::SHARING)
4210 $message = self::createProfileData($uid);
4212 foreach ($recips as $recip) {
4213 Logger::log("Send updated profile data for user ".$uid." to contact ".$recip["id"], Logger::DEBUG);
4214 self::buildAndTransmit($owner, $recip, "profile", $message, false, "", false);
4219 * @brief Creates the signature for likes that are created on our system
4221 * @param integer $uid The user of that comment
4222 * @param array $item Item array
4224 * @return array Signed content
4225 * @throws \Exception
4227 public static function createLikeSignature($uid, array $item)
4229 $owner = User::getOwnerDataById($uid);
4230 if (empty($owner)) {
4231 Logger::log("No owner post, so not storing signature", Logger::DEBUG);
4235 if (!in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4239 $message = self::constructLike($item, $owner);
4240 if ($message === false) {
4244 $message["author_signature"] = self::signature($owner, $message);
4250 * @brief Creates the signature for Comments that are created on our system
4252 * @param integer $uid The user of that comment
4253 * @param array $item Item array
4255 * @return array Signed content
4256 * @throws \Exception
4258 public static function createCommentSignature($uid, array $item)
4260 $owner = User::getOwnerDataById($uid);
4261 if (empty($owner)) {
4262 Logger::log("No owner post, so not storing signature", Logger::DEBUG);
4266 // This is a workaround for the behaviour of the "insert" function, see mod/item.php
4267 $item['thr-parent'] = $item['parent-uri'];
4269 $parent = Item::selectFirst(['parent-uri'], ['uri' => $item['parent-uri']]);
4270 if (!DBA::isResult($parent)) {
4274 $item['parent-uri'] = $parent['parent-uri'];
4276 $message = self::constructComment($item, $owner);
4277 if ($message === false) {
4281 $message["author_signature"] = self::signature($owner, $message);