3 * @file src/Protocol/diaspora.php
4 * @brief The implementation of the diaspora protocol
6 * The new protocol is described here: http://diaspora.github.io/diaspora_federation/index.html
7 * This implementation here interprets the old and the new protocol and sends the new one.
8 * In the future we will remove most stuff from "validPosting" and interpret only the new protocol.
11 namespace Friendica\Protocol;
13 use Friendica\Content\Feature;
14 use Friendica\Content\Text\BBCode;
15 use Friendica\Content\Text\Markdown;
16 use Friendica\Core\Cache;
17 use Friendica\Core\Config;
18 use Friendica\Core\L10n;
19 use Friendica\Core\Logger;
20 use Friendica\Core\PConfig;
21 use Friendica\Core\Protocol;
22 use Friendica\Core\System;
23 use Friendica\Core\Worker;
24 use Friendica\Database\DBA;
25 use Friendica\Model\Contact;
26 use Friendica\Model\Conversation;
27 use Friendica\Model\GContact;
28 use Friendica\Model\Group;
29 use Friendica\Model\Item;
30 use Friendica\Model\Mail;
31 use Friendica\Model\Profile;
32 use Friendica\Model\User;
33 use Friendica\Network\Probe;
34 use Friendica\Util\Crypto;
35 use Friendica\Util\DateTimeFormat;
36 use Friendica\Util\Map;
37 use Friendica\Util\Network;
38 use Friendica\Util\Strings;
39 use Friendica\Util\XML;
40 use Friendica\Worker\Delivery;
44 * @brief This class contain functions to create and send Diaspora XML files
50 * @brief Return a list of relay servers
52 * The list contains not only the official relays but also servers that we serve directly
54 * @param integer $item_id The id of the item that is sent
55 * @param array $contacts The previously fetched contacts
57 * @return array of relay servers
58 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
60 public static function relayList($item_id, array $contacts = [])
64 // Fetching relay servers
65 $serverdata = Config::get("system", "relay_server");
67 if (!empty($serverdata)) {
68 $servers = explode(",", $serverdata);
69 foreach ($servers as $server) {
70 $serverlist[$server] = trim($server);
74 if (Config::get("system", "relay_directly", false)) {
75 // We distribute our stuff based on the parent to ensure that the thread will be complete
76 $parent = Item::selectFirst(['parent'], ['id' => $item_id]);
77 if (!DBA::isResult($parent)) {
81 // Servers that want to get all content
82 $servers = DBA::select('gserver', ['url'], ['relay-subscribe' => true, 'relay-scope' => 'all']);
83 while ($server = DBA::fetch($servers)) {
84 $serverlist[$server['url']] = $server['url'];
87 // All tags of the current post
88 $condition = ['otype' => TERM_OBJ_POST, 'type' => TERM_HASHTAG, 'oid' => $parent['parent']];
89 $tags = DBA::select('term', ['term'], $condition);
91 while ($tag = DBA::fetch($tags)) {
92 $taglist[] = $tag['term'];
95 // All servers who wants content with this tag
97 if (!empty($taglist)) {
98 $tagserver = DBA::select('gserver-tag', ['gserver-id'], ['tag' => $taglist]);
99 while ($server = DBA::fetch($tagserver)) {
100 $tagserverlist[] = $server['gserver-id'];
104 // All adresses with the given id
105 if (!empty($tagserverlist)) {
106 $servers = DBA::select('gserver', ['url'], ['relay-subscribe' => true, 'relay-scope' => 'tags', 'id' => $tagserverlist]);
107 while ($server = DBA::fetch($servers)) {
108 $serverlist[$server['url']] = $server['url'];
113 // Now we are collecting all relay contacts
114 foreach ($serverlist as $server_url) {
115 // We don't send messages to ourselves
116 if (Strings::compareLink($server_url, System::baseUrl())) {
119 $contact = self::getRelayContact($server_url);
120 if (is_bool($contact)) {
125 foreach ($contacts as $entry) {
126 if ($entry['batch'] == $contact['batch']) {
132 $contacts[] = $contact;
140 * @brief Return a contact for a given server address or creates a dummy entry
142 * @param string $server_url The url of the server
143 * @return array with the contact
146 private static function getRelayContact($server_url)
148 $fields = ['batch', 'id', 'name', 'network', 'protocol', 'archive', 'blocked'];
150 // Fetch the relay contact
151 $condition = ['uid' => 0, 'nurl' => Strings::normaliseLink($server_url),
152 'contact-type' => Contact::TYPE_RELAY];
153 $contact = DBA::selectFirst('contact', $fields, $condition);
155 if (DBA::isResult($contact)) {
156 if ($contact['archive'] || $contact['blocked']) {
161 self::setRelayContact($server_url);
163 $contact = DBA::selectFirst('contact', $fields, $condition);
164 if (DBA::isResult($contact)) {
169 // It should never happen that we arrive here
174 * @brief Update or insert a relay contact
176 * @param string $server_url The url of the server
177 * @param array $network_fields Optional network specific fields
180 public static function setRelayContact($server_url, array $network_fields = [])
182 $fields = ['created' => DateTimeFormat::utcNow(),
183 'name' => 'relay', 'nick' => 'relay', 'url' => $server_url,
184 'nurl' => Strings::normaliseLink($server_url),
185 'network' => Protocol::DIASPORA, 'uid' => 0,
186 'batch' => $server_url . '/receive/public',
187 'rel' => Contact::FOLLOWER, 'blocked' => false,
188 'pending' => false, 'writable' => true,
189 'baseurl' => $server_url, 'contact-type' => Contact::TYPE_RELAY];
191 $fields = array_merge($fields, $network_fields);
193 $condition = ['uid' => 0, 'nurl' => Strings::normaliseLink($server_url)];
194 $old = DBA::selectFirst('contact', [], $condition);
195 if (DBA::isResult($old)) {
196 unset($fields['created']);
197 $condition = ['id' => $old['id']];
199 Logger::info('Update relay contact', ['fields' => $fields, 'condition' => $condition]);
200 DBA::update('contact', $fields, $condition, $old);
202 Logger::info('Create relay contact', ['fields' => $fields]);
203 DBA::insert('contact', $fields);
208 * @brief Return a list of participating contacts for a thread
210 * This is used for the participation feature.
211 * One of the parameters is a contact array.
212 * This is done to avoid duplicates.
214 * @param integer $thread The id of the thread
215 * @param array $contacts The previously fetched contacts
217 * @return array of relay servers
220 public static function participantsForThread($thread, array $contacts)
222 $r = DBA::p("SELECT `contact`.`batch`, `contact`.`id`, `contact`.`name`, `contact`.`network`, `contact`.`protocol`,
223 `fcontact`.`batch` AS `fbatch`, `fcontact`.`network` AS `fnetwork` FROM `participation`
224 INNER JOIN `contact` ON `contact`.`id` = `participation`.`cid`
225 INNER JOIN `fcontact` ON `fcontact`.`id` = `participation`.`fid`
226 WHERE `participation`.`iid` = ?", $thread);
228 while ($contact = DBA::fetch($r)) {
229 if (!empty($contact['fnetwork'])) {
230 $contact['network'] = $contact['fnetwork'];
232 unset($contact['fnetwork']);
234 if (empty($contact['protocol'])) {
235 $contact['protocol'] = $contact['network'];
238 if (empty($contact['batch']) && !empty($contact['fbatch'])) {
239 $contact['batch'] = $contact['fbatch'];
241 unset($contact['fbatch']);
244 foreach ($contacts as $entry) {
245 if ($entry['batch'] == $contact['batch']) {
251 $contacts[] = $contact;
260 * @brief repairs a signature that was double encoded
262 * The function is unused at the moment. It was copied from the old implementation.
264 * @param string $signature The signature
265 * @param string $handle The handle of the signature owner
266 * @param integer $level This value is only set inside this function to avoid endless loops
268 * @return string the repaired signature
271 private static function repairSignature($signature, $handle = "", $level = 1)
273 if ($signature == "") {
277 if (base64_encode(base64_decode(base64_decode($signature))) == base64_decode($signature)) {
278 $signature = base64_decode($signature);
279 Logger::log("Repaired double encoded signature from Diaspora/Hubzilla handle ".$handle." - level ".$level, Logger::DEBUG);
281 // Do a recursive call to be able to fix even multiple levels
283 $signature = self::repairSignature($signature, $handle, ++$level);
291 * @brief verify the envelope and return the verified data
293 * @param string $envelope The magic envelope
295 * @return string verified data
296 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
297 * @throws \ImagickException
299 private static function verifyMagicEnvelope($envelope)
301 $basedom = XML::parseString($envelope);
303 if (!is_object($basedom)) {
304 Logger::log("Envelope is no XML file");
308 $children = $basedom->children('http://salmon-protocol.org/ns/magic-env');
310 if (sizeof($children) == 0) {
311 Logger::log("XML has no children");
317 $data = Strings::base64UrlDecode($children->data);
318 $type = $children->data->attributes()->type[0];
320 $encoding = $children->encoding;
322 $alg = $children->alg;
324 $sig = Strings::base64UrlDecode($children->sig);
325 $key_id = $children->sig->attributes()->key_id[0];
327 $handle = Strings::base64UrlDecode($key_id);
330 $b64url_data = Strings::base64UrlEncode($data);
331 $msg = str_replace(["\n", "\r", " ", "\t"], ["", "", "", ""], $b64url_data);
333 $signable_data = $msg.".".Strings::base64UrlEncode($type).".".Strings::base64UrlEncode($encoding).".".Strings::base64UrlEncode($alg);
336 Logger::log('No author could be decoded. Discarding. Message: ' . $envelope);
340 $key = self::key($handle);
342 Logger::log("Couldn't get a key for handle " . $handle . ". Discarding.");
346 $verify = Crypto::rsaVerify($signable_data, $sig, $key);
348 Logger::log('Message from ' . $handle . ' did not verify. Discarding.');
356 * @brief encrypts data via AES
358 * @param string $key The AES key
359 * @param string $iv The IV (is used for CBC encoding)
360 * @param string $data The data that is to be encrypted
362 * @return string encrypted data
364 private static function aesEncrypt($key, $iv, $data)
366 return openssl_encrypt($data, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
370 * @brief decrypts data via AES
372 * @param string $key The AES key
373 * @param string $iv The IV (is used for CBC encoding)
374 * @param string $encrypted The encrypted data
376 * @return string decrypted data
378 private static function aesDecrypt($key, $iv, $encrypted)
380 return openssl_decrypt($encrypted, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
384 * @brief: Decodes incoming Diaspora message in the new format
386 * @param array $importer Array of the importer user
387 * @param string $raw raw post message
388 * @param boolean $no_exit Don't do an http exit on error
391 * 'message' -> decoded Diaspora XML message
392 * 'author' -> author diaspora handle
393 * 'key' -> author public key (converted to pkcs#8)
394 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
395 * @throws \ImagickException
397 public static function decodeRaw(array $importer, $raw, $no_exit = false)
399 $data = json_decode($raw);
401 // Is it a private post? Then decrypt the outer Salmon
402 if (is_object($data)) {
403 $encrypted_aes_key_bundle = base64_decode($data->aes_key);
404 $ciphertext = base64_decode($data->encrypted_magic_envelope);
406 $outer_key_bundle = '';
407 @openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $importer['prvkey']);
408 $j_outer_key_bundle = json_decode($outer_key_bundle);
410 if (!is_object($j_outer_key_bundle)) {
411 Logger::log('Outer Salmon did not verify. Discarding.');
415 throw new \Friendica\Network\HTTPException\BadRequestException();
419 $outer_iv = base64_decode($j_outer_key_bundle->iv);
420 $outer_key = base64_decode($j_outer_key_bundle->key);
422 $xml = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
427 $basedom = XML::parseString($xml);
429 if (!is_object($basedom)) {
430 Logger::log('Received data does not seem to be an XML. Discarding. '.$xml);
434 throw new \Friendica\Network\HTTPException\BadRequestException();
438 $base = $basedom->children(NAMESPACE_SALMON_ME);
440 // Not sure if this cleaning is needed
441 $data = str_replace([" ", "\t", "\r", "\n"], ["", "", "", ""], $base->data);
443 // Build the signed data
444 $type = $base->data[0]->attributes()->type[0];
445 $encoding = $base->encoding;
447 $signed_data = $data.'.'.Strings::base64UrlEncode($type).'.'.Strings::base64UrlEncode($encoding).'.'.Strings::base64UrlEncode($alg);
449 // This is the signature
450 $signature = Strings::base64UrlDecode($base->sig);
452 // Get the senders' public key
453 $key_id = $base->sig[0]->attributes()->key_id[0];
454 $author_addr = base64_decode($key_id);
455 if ($author_addr == '') {
456 Logger::log('No author could be decoded. Discarding. Message: ' . $xml);
460 throw new \Friendica\Network\HTTPException\BadRequestException();
464 $key = self::key($author_addr);
466 Logger::log("Couldn't get a key for handle " . $author_addr . ". Discarding.");
470 throw new \Friendica\Network\HTTPException\BadRequestException();
474 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
476 Logger::log('Message did not verify. Discarding.');
480 throw new \Friendica\Network\HTTPException\BadRequestException();
484 return ['message' => (string)Strings::base64UrlDecode($base->data),
485 'author' => XML::unescape($author_addr),
486 'key' => (string)$key];
490 * @brief: Decodes incoming Diaspora message in the deprecated format
492 * @param array $importer Array of the importer user
493 * @param string $xml urldecoded Diaspora salmon
496 * 'message' -> decoded Diaspora XML message
497 * 'author' -> author diaspora handle
498 * 'key' -> author public key (converted to pkcs#8)
499 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
500 * @throws \ImagickException
502 public static function decode(array $importer, $xml)
505 $basedom = XML::parseString($xml);
507 if (!is_object($basedom)) {
508 Logger::log("XML is not parseable.");
511 $children = $basedom->children('https://joindiaspora.com/protocol');
513 $inner_aes_key = null;
516 if ($children->header) {
518 $author_link = str_replace('acct:', '', $children->header->author_id);
520 // This happens with posts from a relais
522 Logger::log("This is no private post in the old format", Logger::DEBUG);
526 $encrypted_header = json_decode(base64_decode($children->encrypted_header));
528 $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
529 $ciphertext = base64_decode($encrypted_header->ciphertext);
531 $outer_key_bundle = '';
532 openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $importer['prvkey']);
534 $j_outer_key_bundle = json_decode($outer_key_bundle);
536 $outer_iv = base64_decode($j_outer_key_bundle->iv);
537 $outer_key = base64_decode($j_outer_key_bundle->key);
539 $decrypted = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
541 Logger::log('decrypted: '.$decrypted, Logger::DEBUG);
542 $idom = XML::parseString($decrypted);
544 $inner_iv = base64_decode($idom->iv);
545 $inner_aes_key = base64_decode($idom->aes_key);
547 $author_link = str_replace('acct:', '', $idom->author_id);
550 $dom = $basedom->children(NAMESPACE_SALMON_ME);
552 // figure out where in the DOM tree our data is hiding
555 if ($dom->provenance->data) {
556 $base = $dom->provenance;
557 } elseif ($dom->env->data) {
559 } elseif ($dom->data) {
564 Logger::log('unable to locate salmon data in xml');
565 throw new \Friendica\Network\HTTPException\BadRequestException();
569 // Stash the signature away for now. We have to find their key or it won't be good for anything.
570 $signature = Strings::base64UrlDecode($base->sig);
574 // strip whitespace so our data element will return to one big base64 blob
575 $data = str_replace([" ", "\t", "\r", "\n"], ["", "", "", ""], $base->data);
578 // stash away some other stuff for later
580 $type = $base->data[0]->attributes()->type[0];
581 $keyhash = $base->sig[0]->attributes()->keyhash[0];
582 $encoding = $base->encoding;
586 $signed_data = $data.'.'.Strings::base64UrlEncode($type).'.'.Strings::base64UrlEncode($encoding).'.'.Strings::base64UrlEncode($alg);
590 $data = Strings::base64UrlDecode($data);
594 $inner_decrypted = $data;
596 // Decode the encrypted blob
597 $inner_encrypted = base64_decode($data);
598 $inner_decrypted = self::aesDecrypt($inner_aes_key, $inner_iv, $inner_encrypted);
602 Logger::log('Could not retrieve author URI.');
603 throw new \Friendica\Network\HTTPException\BadRequestException();
605 // Once we have the author URI, go to the web and try to find their public key
606 // (first this will look it up locally if it is in the fcontact cache)
607 // This will also convert diaspora public key from pkcs#1 to pkcs#8
609 Logger::log('Fetching key for '.$author_link);
610 $key = self::key($author_link);
613 Logger::log('Could not retrieve author key.');
614 throw new \Friendica\Network\HTTPException\BadRequestException();
617 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
620 Logger::log('Message did not verify. Discarding.');
621 throw new \Friendica\Network\HTTPException\BadRequestException();
624 Logger::log('Message verified.');
626 return ['message' => (string)$inner_decrypted,
627 'author' => XML::unescape($author_link),
628 'key' => (string)$key];
633 * @brief Dispatches public messages and find the fitting receivers
635 * @param array $msg The post that will be dispatched
637 * @return int The message id of the generated message, "true" or "false" if there was an error
638 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
639 * @throws \ImagickException
641 public static function dispatchPublic($msg)
643 $enabled = intval(Config::get("system", "diaspora_enabled"));
645 Logger::log("diaspora is disabled");
649 if (!($fields = self::validPosting($msg))) {
650 Logger::log("Invalid posting");
654 $importer = ["uid" => 0, "page-flags" => User::PAGE_FLAGS_FREELOVE];
655 $success = self::dispatch($importer, $msg, $fields);
661 * @brief Dispatches the different message types to the different functions
663 * @param array $importer Array of the importer user
664 * @param array $msg The post that will be dispatched
665 * @param SimpleXMLElement $fields SimpleXML object that contains the message
667 * @return int The message id of the generated message, "true" or "false" if there was an error
668 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
669 * @throws \ImagickException
671 public static function dispatch(array $importer, $msg, SimpleXMLElement $fields = null)
673 // The sender is the handle of the contact that sent the message.
674 // This will often be different with relayed messages (for example "like" and "comment")
675 $sender = $msg["author"];
677 // This is only needed for private postings since this is already done for public ones before
678 if (is_null($fields)) {
680 if (!($fields = self::validPosting($msg))) {
681 Logger::log("Invalid posting");
688 $type = $fields->getName();
690 Logger::log("Received message type ".$type." from ".$sender." for user ".$importer["uid"], Logger::DEBUG);
693 case "account_migration":
695 Logger::log('Message with type ' . $type . ' is not private, quitting.');
698 return self::receiveAccountMigration($importer, $fields);
700 case "account_deletion":
701 return self::receiveAccountDeletion($fields);
704 return self::receiveComment($importer, $sender, $fields, $msg["message"]);
708 Logger::log('Message with type ' . $type . ' is not private, quitting.');
711 return self::receiveContactRequest($importer, $fields);
715 Logger::log('Message with type ' . $type . ' is not private, quitting.');
718 return self::receiveConversation($importer, $msg, $fields);
721 return self::receiveLike($importer, $sender, $fields);
725 Logger::log('Message with type ' . $type . ' is not private, quitting.');
728 return self::receiveMessage($importer, $fields);
730 case "participation":
732 Logger::log('Message with type ' . $type . ' is not private, quitting.');
735 return self::receiveParticipation($importer, $fields);
737 case "photo": // Not implemented
738 return self::receivePhoto($importer, $fields);
740 case "poll_participation": // Not implemented
741 return self::receivePollParticipation($importer, $fields);
745 Logger::log('Message with type ' . $type . ' is not private, quitting.');
748 return self::receiveProfile($importer, $fields);
751 return self::receiveReshare($importer, $fields, $msg["message"]);
754 return self::receiveRetraction($importer, $sender, $fields);
756 case "status_message":
757 return self::receiveStatusMessage($importer, $fields, $msg["message"]);
760 Logger::log("Unknown message type ".$type);
766 * @brief Checks if a posting is valid and fetches the data fields.
768 * This function does not only check the signature.
769 * It also does the conversion between the old and the new diaspora format.
771 * @param array $msg Array with the XML, the sender handle and the sender signature
773 * @return bool|SimpleXMLElement If the posting is valid then an array with an SimpleXML object is returned
774 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
775 * @throws \ImagickException
777 private static function validPosting($msg)
779 $data = XML::parseString($msg["message"]);
781 if (!is_object($data)) {
782 Logger::log("No valid XML ".$msg["message"], Logger::DEBUG);
786 // Is this the new or the old version?
787 if ($data->getName() == "XML") {
789 foreach ($data->post->children() as $child) {
797 $type = $element->getName();
800 Logger::log("Got message type ".$type.": ".$msg["message"], Logger::DATA);
802 // All retractions are handled identically from now on.
803 // In the new version there will only be "retraction".
804 if (in_array($type, ["signed_retraction", "relayable_retraction"]))
805 $type = "retraction";
807 if ($type == "request") {
811 $fields = new SimpleXMLElement("<".$type."/>");
814 $author_signature = null;
815 $parent_author_signature = null;
817 foreach ($element->children() as $fieldname => $entry) {
819 // Translation for the old XML structure
820 if ($fieldname == "diaspora_handle") {
821 $fieldname = "author";
823 if ($fieldname == "participant_handles") {
824 $fieldname = "participants";
826 if (in_array($type, ["like", "participation"])) {
827 if ($fieldname == "target_type") {
828 $fieldname = "parent_type";
831 if ($fieldname == "sender_handle") {
832 $fieldname = "author";
834 if ($fieldname == "recipient_handle") {
835 $fieldname = "recipient";
837 if ($fieldname == "root_diaspora_id") {
838 $fieldname = "root_author";
840 if ($type == "status_message") {
841 if ($fieldname == "raw_message") {
845 if ($type == "retraction") {
846 if ($fieldname == "post_guid") {
847 $fieldname = "target_guid";
849 if ($fieldname == "type") {
850 $fieldname = "target_type";
855 if (($fieldname == "author_signature") && ($entry != "")) {
856 $author_signature = base64_decode($entry);
857 } elseif (($fieldname == "parent_author_signature") && ($entry != "")) {
858 $parent_author_signature = base64_decode($entry);
859 } elseif (!in_array($fieldname, ["author_signature", "parent_author_signature", "target_author_signature"])) {
860 if ($signed_data != "") {
864 $signed_data .= $entry;
866 if (!in_array($fieldname, ["parent_author_signature", "target_author_signature"])
867 || ($orig_type == "relayable_retraction")
869 XML::copy($entry, $fields, $fieldname);
873 // This is something that shouldn't happen at all.
874 if (in_array($type, ["status_message", "reshare", "profile"])) {
875 if ($msg["author"] != $fields->author) {
876 Logger::log("Message handle is not the same as envelope sender. Quitting this message.");
881 // Only some message types have signatures. So we quit here for the other types.
882 if (!in_array($type, ["comment", "like"])) {
885 // No author_signature? This is a must, so we quit.
886 if (!isset($author_signature)) {
887 Logger::log("No author signature for type ".$type." - Message: ".$msg["message"], Logger::DEBUG);
891 if (isset($parent_author_signature)) {
892 $key = self::key($msg["author"]);
894 Logger::log("No key found for parent author ".$msg["author"], Logger::DEBUG);
898 if (!Crypto::rsaVerify($signed_data, $parent_author_signature, $key, "sha256")) {
899 Logger::log("No valid parent author signature for parent author ".$msg["author"]. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$parent_author_signature, Logger::DEBUG);
904 $key = self::key($fields->author);
906 Logger::log("No key found for author ".$fields->author, Logger::DEBUG);
910 if (!Crypto::rsaVerify($signed_data, $author_signature, $key, "sha256")) {
911 Logger::log("No valid author signature for author ".$fields->author. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$author_signature, Logger::DEBUG);
919 * @brief Fetches the public key for a given handle
921 * @param string $handle The handle
923 * @return string The public key
924 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
925 * @throws \ImagickException
927 private static function key($handle)
929 $handle = strval($handle);
931 Logger::log("Fetching diaspora key for: ".$handle);
933 $r = self::personByHandle($handle);
942 * @brief Fetches data for a given handle
944 * @param string $handle The handle
945 * @param boolean $update true = always update, false = never update, null = update when not found or outdated
947 * @return array the queried data
948 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
949 * @throws \ImagickException
951 public static function personByHandle($handle, $update = null)
953 $person = DBA::selectFirst('fcontact', [], ['network' => Protocol::DIASPORA, 'addr' => $handle]);
954 if (!DBA::isResult($person)) {
955 $urls = [$handle, str_replace('http://', 'https://', $handle), Strings::normaliseLink($handle)];
956 $person = DBA::selectFirst('fcontact', [], ['network' => Protocol::DIASPORA, 'url' => $urls]);
959 if (DBA::isResult($person)) {
960 Logger::debug("In cache " . print_r($person, true));
962 if (is_null($update)) {
963 // update record occasionally so it doesn't get stale
964 $d = strtotime($person["updated"]." +00:00");
965 if ($d < strtotime("now - 14 days")) {
969 if ($person["guid"] == "") {
973 } elseif (is_null($update)) {
974 $update = !DBA::isResult($person);
980 Logger::log("create or refresh", Logger::DEBUG);
981 $r = Probe::uri($handle, Protocol::DIASPORA);
983 // Note that Friendica contacts will return a "Diaspora person"
984 // if Diaspora connectivity is enabled on their server
985 if ($r && ($r["network"] === Protocol::DIASPORA)) {
986 self::updateFContact($r);
988 $person = self::personByHandle($handle, false);
996 * @brief Updates the fcontact table
998 * @param array $arr The fcontact data
1001 private static function updateFContact($arr)
1003 $fields = ['name' => $arr["name"], 'photo' => $arr["photo"],
1004 'request' => $arr["request"], 'nick' => $arr["nick"],
1005 'addr' => strtolower($arr["addr"]), 'guid' => $arr["guid"],
1006 'batch' => $arr["batch"], 'notify' => $arr["notify"],
1007 'poll' => $arr["poll"], 'confirm' => $arr["confirm"],
1008 'alias' => $arr["alias"], 'pubkey' => $arr["pubkey"],
1009 'updated' => DateTimeFormat::utcNow()];
1011 $condition = ['url' => $arr["url"], 'network' => $arr["network"]];
1013 DBA::update('fcontact', $fields, $condition, true);
1017 * @brief get a handle (user@domain.tld) from a given contact id
1019 * @param int $contact_id The id in the contact table
1020 * @param int $pcontact_id The id in the contact table (Used for the public contact)
1022 * @return string the handle
1023 * @throws \Exception
1025 private static function handleFromContact($contact_id, $pcontact_id = 0)
1029 Logger::log("contact id is ".$contact_id." - pcontact id is ".$pcontact_id, Logger::DEBUG);
1031 if ($pcontact_id != 0) {
1032 $contact = DBA::selectFirst('contact', ['addr'], ['id' => $pcontact_id]);
1034 if (DBA::isResult($contact) && !empty($contact["addr"])) {
1035 return strtolower($contact["addr"]);
1040 "SELECT `network`, `addr`, `self`, `url`, `nick` FROM `contact` WHERE `id` = %d",
1044 if (DBA::isResult($r)) {
1047 Logger::log("contact 'self' = ".$contact['self']." 'url' = ".$contact['url'], Logger::DEBUG);
1049 if ($contact['addr'] != "") {
1050 $handle = $contact['addr'];
1052 $baseurl_start = strpos($contact['url'], '://') + 3;
1053 // allows installations in a subdirectory--not sure how Diaspora will handle
1054 $baseurl_length = strpos($contact['url'], '/profile') - $baseurl_start;
1055 $baseurl = substr($contact['url'], $baseurl_start, $baseurl_length);
1056 $handle = $contact['nick'].'@'.$baseurl;
1060 return strtolower($handle);
1064 * @brief get a url (scheme://domain.tld/u/user) from a given Diaspora*
1067 * @param mixed $fcontact_guid Hexadecimal string guid
1069 * @return string the contact url or null
1070 * @throws \Exception
1072 public static function urlFromContactGuid($fcontact_guid)
1074 Logger::log("fcontact guid is ".$fcontact_guid, Logger::DEBUG);
1077 "SELECT `url` FROM `fcontact` WHERE `url` != '' AND `network` = '%s' AND `guid` = '%s'",
1078 DBA::escape(Protocol::DIASPORA),
1079 DBA::escape($fcontact_guid)
1082 if (DBA::isResult($r)) {
1083 return $r[0]['url'];
1090 * @brief Get a contact id for a given handle
1092 * @todo Move to Friendica\Model\Contact
1094 * @param int $uid The user id
1095 * @param string $handle The handle in the format user@domain.tld
1097 * @return array Contact data
1098 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1099 * @throws \ImagickException
1101 private static function contactByHandle($uid, $handle)
1103 $cid = Contact::getIdForURL($handle, $uid);
1105 $handle_parts = explode("@", $handle);
1106 $nurl_sql = "%%://" . $handle_parts[1] . "%%/profile/" . $handle_parts[0];
1107 $cid = Contact::getIdForURL($nurl_sql, $uid);
1111 Logger::log("Haven't found a contact for user " . $uid . " and handle " . $handle, Logger::DEBUG);
1115 $contact = DBA::selectFirst('contact', [], ['id' => $cid]);
1116 if (!DBA::isResult($contact)) {
1117 // This here shouldn't happen at all
1118 Logger::log("Haven't found a contact for user " . $uid . " and handle " . $handle, Logger::DEBUG);
1126 * Checks if the given contact url does support ActivityPub
1128 * @param string $url profile url
1129 * @param boolean $update true = always update, false = never update, null = update when not found or outdated
1131 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1132 * @throws \ImagickException
1134 public static function isSupportedByContactUrl($url, $update = null)
1136 return !empty(self::personByHandle($url, $update));
1140 * @brief Check if posting is allowed for this contact
1142 * @param array $importer Array of the importer user
1143 * @param array $contact The contact that is checked
1144 * @param bool $is_comment Is the check for a comment?
1146 * @return bool is the contact allowed to post?
1148 private static function postAllow(array $importer, array $contact, $is_comment = false)
1151 * Perhaps we were already sharing with this person. Now they're sharing with us.
1152 * That makes us friends.
1153 * Normally this should have handled by getting a request - but this could get lost
1155 // It is deactivated by now, due to side effects. See issue https://github.com/friendica/friendica/pull/4033
1156 // It is not removed by now. Possibly the code is needed?
1157 //if (!$is_comment && $contact["rel"] == Contact::FOLLOWER && in_array($importer["page-flags"], array(User::PAGE_FLAGS_FREELOVE))) {
1160 // array('rel' => Contact::FRIEND, 'writable' => true),
1161 // array('id' => $contact["id"], 'uid' => $contact["uid"])
1164 // $contact["rel"] = Contact::FRIEND;
1165 // Logger::log("defining user ".$contact["nick"]." as friend");
1168 // Contact server is blocked
1169 if (Network::isUrlBlocked($contact['url'])) {
1171 // We don't seem to like that person
1172 } elseif ($contact["blocked"]) {
1173 // Maybe blocked, don't accept.
1175 // We are following this person?
1176 } elseif (($contact["rel"] == Contact::SHARING) || ($contact["rel"] == Contact::FRIEND)) {
1177 // Yes, then it is fine.
1179 // Is it a post to a community?
1180 } elseif (($contact["rel"] == Contact::FOLLOWER) && in_array($importer["page-flags"], [User::PAGE_FLAGS_COMMUNITY, User::PAGE_FLAGS_PRVGROUP])) {
1183 // Is the message a global user or a comment?
1184 } elseif (($importer["uid"] == 0) || $is_comment) {
1185 // Messages for the global users and comments are always accepted
1193 * @brief Fetches the contact id for a handle and checks if posting is allowed
1195 * @param array $importer Array of the importer user
1196 * @param string $handle The checked handle in the format user@domain.tld
1197 * @param bool $is_comment Is the check for a comment?
1199 * @return array The contact data
1200 * @throws \Exception
1202 private static function allowedContactByHandle(array $importer, $handle, $is_comment = false)
1204 $contact = self::contactByHandle($importer["uid"], $handle);
1206 Logger::log("A Contact for handle ".$handle." and user ".$importer["uid"]." was not found");
1207 // If a contact isn't found, we accept it anyway if it is a comment
1208 if ($is_comment && ($importer["uid"] != 0)) {
1209 return self::contactByHandle(0, $handle);
1210 } elseif ($is_comment) {
1217 if (!self::postAllow($importer, $contact, $is_comment)) {
1218 Logger::log("The handle: ".$handle." is not allowed to post to user ".$importer["uid"]);
1225 * @brief Does the message already exists on the system?
1227 * @param int $uid The user id
1228 * @param string $guid The guid of the message
1230 * @return int|bool message id if the message already was stored into the system - or false.
1231 * @throws \Exception
1233 private static function messageExists($uid, $guid)
1235 $item = Item::selectFirst(['id'], ['uid' => $uid, 'guid' => $guid]);
1236 if (DBA::isResult($item)) {
1237 Logger::log("message ".$guid." already exists for user ".$uid);
1245 * @brief Checks for links to posts in a message
1247 * @param array $item The item array
1250 private static function fetchGuid(array $item)
1252 $expression = "=diaspora://.*?/post/([0-9A-Za-z\-_@.:]{15,254}[0-9A-Za-z])=ism";
1253 preg_replace_callback(
1255 function ($match) use ($item) {
1256 self::fetchGuidSub($match, $item);
1261 preg_replace_callback(
1262 "&\[url=/?posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
1263 function ($match) use ($item) {
1264 self::fetchGuidSub($match, $item);
1271 * @brief Checks for relative /people/* links in an item body to match local
1272 * contacts or prepends the remote host taken from the author link.
1274 * @param string $body The item body to replace links from
1275 * @param string $author_link The author link for missing local contact fallback
1277 * @return string the replaced string
1279 public static function replacePeopleGuid($body, $author_link)
1281 $return = preg_replace_callback(
1282 "&\[url=/people/([^\[\]]*)\](.*)\[\/url\]&Usi",
1283 function ($match) use ($author_link) {
1285 // 0 => '[url=/people/0123456789abcdef]Foo Bar[/url]'
1286 // 1 => '0123456789abcdef'
1288 $handle = self::urlFromContactGuid($match[1]);
1291 $return = '@[url='.$handle.']'.$match[2].'[/url]';
1293 // No local match, restoring absolute remote URL from author scheme and host
1294 $author_url = parse_url($author_link);
1295 $return = '[url='.$author_url['scheme'].'://'.$author_url['host'].'/people/'.$match[1].']'.$match[2].'[/url]';
1307 * @brief sub function of "fetchGuid" which checks for links in messages
1309 * @param array $match array containing a link that has to be checked for a message link
1310 * @param array $item The item array
1312 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1313 * @throws \ImagickException
1315 private static function fetchGuidSub($match, $item)
1317 if (!self::storeByGuid($match[1], $item["author-link"])) {
1318 self::storeByGuid($match[1], $item["owner-link"]);
1323 * @brief Fetches an item with a given guid from a given server
1325 * @param string $guid the message guid
1326 * @param string $server The server address
1327 * @param int $uid The user id of the user
1329 * @return int the message id of the stored message or false
1330 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1331 * @throws \ImagickException
1333 private static function storeByGuid($guid, $server, $uid = 0)
1335 $serverparts = parse_url($server);
1337 if (empty($serverparts["host"]) || empty($serverparts["scheme"])) {
1341 $server = $serverparts["scheme"]."://".$serverparts["host"];
1343 Logger::log("Trying to fetch item ".$guid." from ".$server, Logger::DEBUG);
1345 $msg = self::message($guid, $server);
1351 Logger::log("Successfully fetched item ".$guid." from ".$server, Logger::DEBUG);
1353 // Now call the dispatcher
1354 return self::dispatchPublic($msg);
1358 * @brief Fetches a message from a server
1360 * @param string $guid message guid
1361 * @param string $server The url of the server
1362 * @param int $level Endless loop prevention
1365 * 'message' => The message XML
1366 * 'author' => The author handle
1367 * 'key' => The public key of the author
1368 * @throws \Exception
1370 private static function message($guid, $server, $level = 0)
1376 // This will work for new Diaspora servers and Friendica servers from 3.5
1377 $source_url = $server."/fetch/post/".urlencode($guid);
1379 Logger::log("Fetch post from ".$source_url, Logger::DEBUG);
1381 $envelope = Network::fetchUrl($source_url);
1383 Logger::log("Envelope was fetched.", Logger::DEBUG);
1384 $x = self::verifyMagicEnvelope($envelope);
1386 Logger::log("Envelope could not be verified.", Logger::DEBUG);
1388 Logger::log("Envelope was verified.", Logger::DEBUG);
1398 $source_xml = XML::parseString($x);
1400 if (!is_object($source_xml)) {
1404 if ($source_xml->post->reshare) {
1405 // Reshare of a reshare - old Diaspora version
1406 Logger::log("Message is a reshare", Logger::DEBUG);
1407 return self::message($source_xml->post->reshare->root_guid, $server, ++$level);
1408 } elseif ($source_xml->getName() == "reshare") {
1409 // Reshare of a reshare - new Diaspora version
1410 Logger::log("Message is a new reshare", Logger::DEBUG);
1411 return self::message($source_xml->root_guid, $server, ++$level);
1416 // Fetch the author - for the old and the new Diaspora version
1417 if ($source_xml->post->status_message && $source_xml->post->status_message->diaspora_handle) {
1418 $author = (string)$source_xml->post->status_message->diaspora_handle;
1419 } elseif ($source_xml->author && ($source_xml->getName() == "status_message")) {
1420 $author = (string)$source_xml->author;
1423 // If this isn't a "status_message" then quit
1425 Logger::log("Message doesn't seem to be a status message", Logger::DEBUG);
1429 $msg = ["message" => $x, "author" => $author];
1431 $msg["key"] = self::key($msg["author"]);
1437 * @brief Fetches an item with a given URL
1439 * @param string $url the message url
1441 * @return int the message id of the stored message or false
1442 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1443 * @throws \ImagickException
1445 public static function fetchByURL($url, $uid = 0)
1447 // Check for Diaspora (and Friendica) typical paths
1448 if (!preg_match("=(https?://.+)/(?:posts|display)/([a-zA-Z0-9-_@.:%]+[a-zA-Z0-9])=i", $url, $matches)) {
1452 $guid = urldecode($matches[2]);
1454 $item = Item::selectFirst(['id'], ['guid' => $guid, 'uid' => $uid]);
1455 if (DBA::isResult($item)) {
1459 self::storeByGuid($guid, $matches[1], $uid);
1461 $item = Item::selectFirst(['id'], ['guid' => $guid, 'uid' => $uid]);
1462 if (DBA::isResult($item)) {
1470 * @brief Fetches the item record of a given guid
1472 * @param int $uid The user id
1473 * @param string $guid message guid
1474 * @param string $author The handle of the item
1475 * @param array $contact The contact of the item owner
1477 * @return array the item record
1478 * @throws \Exception
1480 private static function parentItem($uid, $guid, $author, array $contact)
1482 $fields = ['id', 'parent', 'body', 'wall', 'uri', 'guid', 'private', 'origin',
1483 'author-name', 'author-link', 'author-avatar',
1484 'owner-name', 'owner-link', 'owner-avatar'];
1485 $condition = ['uid' => $uid, 'guid' => $guid];
1486 $item = Item::selectFirst($fields, $condition);
1488 if (!DBA::isResult($item)) {
1489 $person = self::personByHandle($author);
1490 $result = self::storeByGuid($guid, $person["url"], $uid);
1492 // We don't have an url for items that arrived at the public dispatcher
1493 if (!$result && !empty($contact["url"])) {
1494 $result = self::storeByGuid($guid, $contact["url"], $uid);
1498 Logger::log("Fetched missing item ".$guid." - result: ".$result, Logger::DEBUG);
1500 $item = Item::selectFirst($fields, $condition);
1504 if (!DBA::isResult($item)) {
1505 Logger::log("parent item not found: parent: ".$guid." - user: ".$uid);
1508 Logger::log("parent item found: parent: ".$guid." - user: ".$uid);
1514 * @brief returns contact details
1516 * @param array $def_contact The default contact if the person isn't found
1517 * @param array $person The record of the person
1518 * @param int $uid The user id
1521 * 'cid' => contact id
1522 * 'network' => network type
1523 * @throws \Exception
1525 private static function authorContactByUrl($def_contact, $person, $uid)
1527 $condition = ['nurl' => Strings::normaliseLink($person["url"]), 'uid' => $uid];
1528 $contact = DBA::selectFirst('contact', ['id', 'network'], $condition);
1529 if (DBA::isResult($contact)) {
1530 $cid = $contact["id"];
1531 $network = $contact["network"];
1533 $cid = $def_contact["id"];
1534 $network = Protocol::DIASPORA;
1537 return ["cid" => $cid, "network" => $network];
1541 * @brief Is the profile a hubzilla profile?
1543 * @param string $url The profile link
1545 * @return bool is it a hubzilla server?
1547 public static function isRedmatrix($url)
1549 return(strstr($url, "/channel/"));
1553 * @brief Generate a post link with a given handle and message guid
1555 * @param string $addr The user handle
1556 * @param string $guid message guid
1557 * @param string $parent_guid optional parent guid
1559 * @return string the post link
1560 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1561 * @throws \ImagickException
1563 private static function plink($addr, $guid, $parent_guid = '')
1565 $contact = Contact::getDetailsByAddr($addr);
1569 if ($parent_guid != '') {
1570 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $parent_guid . "#" . $guid;
1572 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $guid;
1576 if ($contact["network"] == Protocol::DFRN) {
1577 return str_replace("/profile/" . $contact["nick"] . "/", "/display/" . $guid, $contact["url"] . "/");
1580 if (self::isRedmatrix($contact["url"])) {
1581 return $contact["url"] . "/?f=&mid=" . $guid;
1584 if ($parent_guid != '') {
1585 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $parent_guid . "#" . $guid;
1587 return "https://" . substr($addr, strpos($addr, "@") + 1) . "/posts/" . $guid;
1592 * @brief Receives account migration
1594 * @param array $importer Array of the importer user
1595 * @param object $data The message object
1597 * @return bool Success
1598 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1599 * @throws \ImagickException
1601 private static function receiveAccountMigration(array $importer, $data)
1603 $old_handle = Strings::escapeTags(XML::unescape($data->author));
1604 $new_handle = Strings::escapeTags(XML::unescape($data->profile->author));
1605 $signature = Strings::escapeTags(XML::unescape($data->signature));
1607 $contact = self::contactByHandle($importer["uid"], $old_handle);
1609 Logger::log("cannot find contact for sender: ".$old_handle." and user ".$importer["uid"]);
1613 Logger::log("Got migration for ".$old_handle.", to ".$new_handle." with user ".$importer["uid"]);
1616 $signed_text = 'AccountMigration:'.$old_handle.':'.$new_handle;
1617 $key = self::key($old_handle);
1618 if (!Crypto::rsaVerify($signed_text, $signature, $key, "sha256")) {
1619 Logger::log('No valid signature for migration.');
1623 // Update the profile
1624 self::receiveProfile($importer, $data->profile);
1626 // change the technical stuff in contact and gcontact
1627 $data = Probe::uri($new_handle);
1628 if ($data['network'] == Protocol::PHANTOM) {
1629 Logger::log('Account for '.$new_handle." couldn't be probed.");
1633 $fields = ['url' => $data['url'], 'nurl' => Strings::normaliseLink($data['url']),
1634 'name' => $data['name'], 'nick' => $data['nick'],
1635 'addr' => $data['addr'], 'batch' => $data['batch'],
1636 'notify' => $data['notify'], 'poll' => $data['poll'],
1637 'network' => $data['network']];
1639 DBA::update('contact', $fields, ['addr' => $old_handle]);
1641 $fields = ['url' => $data['url'], 'nurl' => Strings::normaliseLink($data['url']),
1642 'name' => $data['name'], 'nick' => $data['nick'],
1643 'addr' => $data['addr'], 'connect' => $data['addr'],
1644 'notify' => $data['notify'], 'photo' => $data['photo'],
1645 'server_url' => $data['baseurl'], 'network' => $data['network']];
1647 DBA::update('gcontact', $fields, ['addr' => $old_handle]);
1649 Logger::log('Contacts are updated.');
1655 * @brief Processes an account deletion
1657 * @param object $data The message object
1659 * @return bool Success
1660 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1662 private static function receiveAccountDeletion($data)
1664 $author = Strings::escapeTags(XML::unescape($data->author));
1666 $contacts = DBA::select('contact', ['id'], ['addr' => $author]);
1667 while ($contact = DBA::fetch($contacts)) {
1668 Contact::remove($contact["id"]);
1671 DBA::delete('gcontact', ['addr' => $author]);
1673 Logger::log('Removed contacts for ' . $author);
1679 * @brief Fetch the uri from our database if we already have this item (maybe from ourselves)
1681 * @param string $author Author handle
1682 * @param string $guid Message guid
1683 * @param boolean $onlyfound Only return uri when found in the database
1685 * @return string The constructed uri or the one from our database
1686 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1687 * @throws \ImagickException
1689 private static function getUriFromGuid($author, $guid, $onlyfound = false)
1691 $item = Item::selectFirst(['uri'], ['guid' => $guid]);
1692 if (DBA::isResult($item)) {
1693 return $item["uri"];
1694 } elseif (!$onlyfound) {
1695 $person = self::personByHandle($author);
1697 $parts = parse_url($person['url']);
1698 unset($parts['path']);
1699 $host_url = Network::unparseURL($parts);
1701 return $host_url . '/objects/' . $guid;
1708 * @brief Fetch the guid from our database with a given uri
1710 * @param string $uri Message uri
1711 * @param string $uid Author handle
1713 * @return string The post guid
1714 * @throws \Exception
1716 private static function getGuidFromUri($uri, $uid)
1718 $item = Item::selectFirst(['guid'], ['uri' => $uri, 'uid' => $uid]);
1719 if (DBA::isResult($item)) {
1720 return $item["guid"];
1727 * @brief Find the best importer for a comment, like, ...
1729 * @param string $guid The guid of the item
1731 * @return array|boolean the origin owner of that post - or false
1732 * @throws \Exception
1734 private static function importerForGuid($guid)
1736 $item = Item::selectFirst(['uid'], ['origin' => true, 'guid' => $guid]);
1737 if (DBA::isResult($item)) {
1738 Logger::log("Found user ".$item['uid']." as owner of item ".$guid, Logger::DEBUG);
1739 $contact = DBA::selectFirst('contact', [], ['self' => true, 'uid' => $item['uid']]);
1740 if (DBA::isResult($contact)) {
1748 * @brief Processes an incoming comment
1750 * @param array $importer Array of the importer user
1751 * @param string $sender The sender of the message
1752 * @param object $data The message object
1753 * @param string $xml The original XML of the message
1755 * @return int The message id of the generated comment or "false" if there was an error
1756 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1757 * @throws \ImagickException
1759 private static function receiveComment(array $importer, $sender, $data, $xml)
1761 $author = Strings::escapeTags(XML::unescape($data->author));
1762 $guid = Strings::escapeTags(XML::unescape($data->guid));
1763 $parent_guid = Strings::escapeTags(XML::unescape($data->parent_guid));
1764 $text = XML::unescape($data->text);
1766 if (isset($data->created_at)) {
1767 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
1769 $created_at = DateTimeFormat::utcNow();
1772 if (isset($data->thread_parent_guid)) {
1773 $thread_parent_guid = Strings::escapeTags(XML::unescape($data->thread_parent_guid));
1774 $thr_uri = self::getUriFromGuid("", $thread_parent_guid, true);
1779 $contact = self::allowedContactByHandle($importer, $sender, true);
1784 $message_id = self::messageExists($importer["uid"], $guid);
1789 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
1790 if (!$parent_item) {
1794 $person = self::personByHandle($author);
1795 if (!is_array($person)) {
1796 Logger::log("unable to find author details");
1800 // Fetch the contact id - if we know this contact
1801 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
1805 $datarray["uid"] = $importer["uid"];
1806 $datarray["contact-id"] = $author_contact["cid"];
1807 $datarray["network"] = $author_contact["network"];
1809 $datarray["author-link"] = $person["url"];
1810 $datarray["author-id"] = Contact::getIdForURL($person["url"], 0);
1812 $datarray["owner-link"] = $contact["url"];
1813 $datarray["owner-id"] = Contact::getIdForURL($contact["url"], 0);
1815 $datarray["guid"] = $guid;
1816 $datarray["uri"] = self::getUriFromGuid($author, $guid);
1818 $datarray["verb"] = ACTIVITY_POST;
1819 $datarray["gravity"] = GRAVITY_COMMENT;
1821 if ($thr_uri != "") {
1822 $datarray["parent-uri"] = $thr_uri;
1824 $datarray["parent-uri"] = $parent_item["uri"];
1827 $datarray["object-type"] = ACTIVITY_OBJ_COMMENT;
1829 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
1830 $datarray["source"] = $xml;
1832 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
1834 $datarray["plink"] = self::plink($author, $guid, $parent_item['guid']);
1836 $body = Markdown::toBBCode($text);
1838 $datarray["body"] = self::replacePeopleGuid($body, $person["url"]);
1840 self::fetchGuid($datarray);
1842 // If we are the origin of the parent we store the original data.
1843 // We notify our followers during the item storage.
1844 if ($parent_item["origin"]) {
1845 $datarray['diaspora_signed_text'] = json_encode($data);
1848 $message_id = Item::insert($datarray);
1850 if ($message_id <= 0) {
1855 Logger::log("Stored comment ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
1856 if ($datarray['uid'] == 0) {
1857 Item::distribute($message_id, json_encode($data));
1865 * @brief processes and stores private messages
1867 * @param array $importer Array of the importer user
1868 * @param array $contact The contact of the message
1869 * @param object $data The message object
1870 * @param array $msg Array of the processed message, author handle and key
1871 * @param object $mesg The private message
1872 * @param array $conversation The conversation record to which this message belongs
1874 * @return bool "true" if it was successful
1875 * @throws \Exception
1877 private static function receiveConversationMessage(array $importer, array $contact, $data, $msg, $mesg, $conversation)
1879 $author = Strings::escapeTags(XML::unescape($data->author));
1880 $guid = Strings::escapeTags(XML::unescape($data->guid));
1881 $subject = Strings::escapeTags(XML::unescape($data->subject));
1883 // "diaspora_handle" is the element name from the old version
1884 // "author" is the element name from the new version
1885 if ($mesg->author) {
1886 $msg_author = Strings::escapeTags(XML::unescape($mesg->author));
1887 } elseif ($mesg->diaspora_handle) {
1888 $msg_author = Strings::escapeTags(XML::unescape($mesg->diaspora_handle));
1893 $msg_guid = Strings::escapeTags(XML::unescape($mesg->guid));
1894 $msg_conversation_guid = Strings::escapeTags(XML::unescape($mesg->conversation_guid));
1895 $msg_text = XML::unescape($mesg->text);
1896 $msg_created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($mesg->created_at)));
1898 if ($msg_conversation_guid != $guid) {
1899 Logger::log("message conversation guid does not belong to the current conversation.");
1903 $body = Markdown::toBBCode($msg_text);
1904 $message_uri = $msg_author.":".$msg_guid;
1906 $person = self::personByHandle($msg_author);
1908 return Mail::insert([
1909 'uid' => $importer['uid'],
1910 'guid' => $msg_guid,
1911 'convid' => $conversation['id'],
1912 'from-name' => $person['name'],
1913 'from-photo' => $person['photo'],
1914 'from-url' => $person['url'],
1915 'contact-id' => $contact['id'],
1916 'title' => $subject,
1918 'uri' => $message_uri,
1919 'parent-uri' => $author . ':' . $guid,
1920 'created' => $msg_created_at
1925 * @brief Processes new private messages (answers to private messages are processed elsewhere)
1927 * @param array $importer Array of the importer user
1928 * @param array $msg Array of the processed message, author handle and key
1929 * @param object $data The message object
1931 * @return bool Success
1932 * @throws \Exception
1934 private static function receiveConversation(array $importer, $msg, $data)
1936 $author = Strings::escapeTags(XML::unescape($data->author));
1937 $guid = Strings::escapeTags(XML::unescape($data->guid));
1938 $subject = Strings::escapeTags(XML::unescape($data->subject));
1939 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
1940 $participants = Strings::escapeTags(XML::unescape($data->participants));
1942 $messages = $data->message;
1944 if (!count($messages)) {
1945 Logger::log("empty conversation");
1949 $contact = self::allowedContactByHandle($importer, $msg["author"], true);
1954 $conversation = DBA::selectFirst('conv', [], ['uid' => $importer["uid"], 'guid' => $guid]);
1955 if (!DBA::isResult($conversation)) {
1957 "INSERT INTO `conv` (`uid`, `guid`, `creator`, `created`, `updated`, `subject`, `recips`)
1958 VALUES (%d, '%s', '%s', '%s', '%s', '%s', '%s')",
1959 intval($importer["uid"]),
1961 DBA::escape($author),
1962 DBA::escape($created_at),
1963 DBA::escape(DateTimeFormat::utcNow()),
1964 DBA::escape($subject),
1965 DBA::escape($participants)
1968 $conversation = DBA::selectFirst('conv', [], ['uid' => $importer["uid"], 'guid' => $guid]);
1971 if (!$conversation) {
1972 Logger::log("unable to create conversation.");
1976 foreach ($messages as $mesg) {
1977 self::receiveConversationMessage($importer, $contact, $data, $msg, $mesg, $conversation);
1984 * @brief Processes "like" messages
1986 * @param array $importer Array of the importer user
1987 * @param string $sender The sender of the message
1988 * @param object $data The message object
1990 * @return int The message id of the generated like or "false" if there was an error
1991 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1992 * @throws \ImagickException
1994 private static function receiveLike(array $importer, $sender, $data)
1996 $author = Strings::escapeTags(XML::unescape($data->author));
1997 $guid = Strings::escapeTags(XML::unescape($data->guid));
1998 $parent_guid = Strings::escapeTags(XML::unescape($data->parent_guid));
1999 $parent_type = Strings::escapeTags(XML::unescape($data->parent_type));
2000 $positive = Strings::escapeTags(XML::unescape($data->positive));
2002 // likes on comments aren't supported by Diaspora - only on posts
2003 // But maybe this will be supported in the future, so we will accept it.
2004 if (!in_array($parent_type, ["Post", "Comment"])) {
2008 $contact = self::allowedContactByHandle($importer, $sender, true);
2013 $message_id = self::messageExists($importer["uid"], $guid);
2018 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
2019 if (!$parent_item) {
2023 $person = self::personByHandle($author);
2024 if (!is_array($person)) {
2025 Logger::log("unable to find author details");
2029 // Fetch the contact id - if we know this contact
2030 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
2032 // "positive" = "false" would be a Dislike - wich isn't currently supported by Diaspora
2033 // We would accept this anyhow.
2034 if ($positive == "true") {
2035 $verb = ACTIVITY_LIKE;
2037 $verb = ACTIVITY_DISLIKE;
2042 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
2044 $datarray["uid"] = $importer["uid"];
2045 $datarray["contact-id"] = $author_contact["cid"];
2046 $datarray["network"] = $author_contact["network"];
2048 $datarray["owner-link"] = $datarray["author-link"] = $person["url"];
2049 $datarray["owner-id"] = $datarray["author-id"] = Contact::getIdForURL($person["url"], 0);
2051 $datarray["guid"] = $guid;
2052 $datarray["uri"] = self::getUriFromGuid($author, $guid);
2054 $datarray["verb"] = $verb;
2055 $datarray["gravity"] = GRAVITY_ACTIVITY;
2056 $datarray["parent-uri"] = $parent_item["uri"];
2058 $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
2060 $datarray["body"] = $verb;
2062 // Diaspora doesn't provide a date for likes
2063 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = DateTimeFormat::utcNow();
2065 // like on comments have the comment as parent. So we need to fetch the toplevel parent
2066 if ($parent_item["id"] != $parent_item["parent"]) {
2067 $toplevel = Item::selectFirst(['origin'], ['id' => $parent_item["parent"]]);
2068 $origin = $toplevel["origin"];
2070 $origin = $parent_item["origin"];
2073 // If we are the origin of the parent we store the original data.
2074 // We notify our followers during the item storage.
2076 $datarray['diaspora_signed_text'] = json_encode($data);
2079 $message_id = Item::insert($datarray);
2081 if ($message_id <= 0) {
2086 Logger::log("Stored like ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
2087 if ($datarray['uid'] == 0) {
2088 Item::distribute($message_id, json_encode($data));
2096 * @brief Processes private messages
2098 * @param array $importer Array of the importer user
2099 * @param object $data The message object
2101 * @return bool Success?
2102 * @throws \Exception
2104 private static function receiveMessage(array $importer, $data)
2106 $author = Strings::escapeTags(XML::unescape($data->author));
2107 $guid = Strings::escapeTags(XML::unescape($data->guid));
2108 $conversation_guid = Strings::escapeTags(XML::unescape($data->conversation_guid));
2109 $text = XML::unescape($data->text);
2110 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
2112 $contact = self::allowedContactByHandle($importer, $author, true);
2117 $conversation = null;
2119 $condition = ['uid' => $importer["uid"], 'guid' => $conversation_guid];
2120 $conversation = DBA::selectFirst('conv', [], $condition);
2122 if (!DBA::isResult($conversation)) {
2123 Logger::log("conversation not available.");
2127 $message_uri = $author.":".$guid;
2129 $person = self::personByHandle($author);
2131 Logger::log("unable to find author details");
2135 $body = Markdown::toBBCode($text);
2137 $body = self::replacePeopleGuid($body, $person["url"]);
2139 return Mail::insert([
2140 'uid' => $importer['uid'],
2142 'convid' => $conversation['id'],
2143 'from-name' => $person['name'],
2144 'from-photo' => $person['photo'],
2145 'from-url' => $person['url'],
2146 'contact-id' => $contact['id'],
2147 'title' => $conversation['subject'],
2150 'uri' => $message_uri,
2151 'parent-uri' => $author.":".$conversation['guid'],
2152 'created' => $created_at
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']) {
2210 Logger::info('Deliver participation', ['item' => $comment['id'], 'contact' => $contact_id]);
2211 Worker::add(PRIORITY_HIGH, 'Delivery', Delivery::POST, $comment['id'], $contact_id);
2213 DBA::close($comments);
2219 * @brief Processes photos - unneeded
2221 * @param array $importer Array of the importer user
2222 * @param object $data The message object
2224 * @return bool always true
2226 private static function receivePhoto(array $importer, $data)
2228 // There doesn't seem to be a reason for this function,
2229 // since the photo data is transmitted in the status message as well
2234 * @brief Processes poll participations - unssupported
2236 * @param array $importer Array of the importer user
2237 * @param object $data The message object
2239 * @return bool always true
2241 private static function receivePollParticipation(array $importer, $data)
2243 // We don't support polls by now
2248 * @brief Processes incoming profile updates
2250 * @param array $importer Array of the importer user
2251 * @param object $data The message object
2253 * @return bool Success
2254 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2255 * @throws \ImagickException
2257 private static function receiveProfile(array $importer, $data)
2259 $author = strtolower(Strings::escapeTags(XML::unescape($data->author)));
2261 $contact = self::contactByHandle($importer["uid"], $author);
2266 $name = XML::unescape($data->first_name).((strlen($data->last_name)) ? " ".XML::unescape($data->last_name) : "");
2267 $image_url = XML::unescape($data->image_url);
2268 $birthday = XML::unescape($data->birthday);
2269 $gender = XML::unescape($data->gender);
2270 $about = Markdown::toBBCode(XML::unescape($data->bio));
2271 $location = Markdown::toBBCode(XML::unescape($data->location));
2272 $searchable = (XML::unescape($data->searchable) == "true");
2273 $nsfw = (XML::unescape($data->nsfw) == "true");
2274 $tags = XML::unescape($data->tag_string);
2276 $tags = explode("#", $tags);
2279 foreach ($tags as $tag) {
2280 $tag = trim(strtolower($tag));
2286 $keywords = implode(", ", $keywords);
2288 $handle_parts = explode("@", $author);
2289 $nick = $handle_parts[0];
2292 $name = $handle_parts[0];
2295 if (preg_match("|^https?://|", $image_url) === 0) {
2296 $image_url = "http://".$handle_parts[1].$image_url;
2299 Contact::updateAvatar($image_url, $importer["uid"], $contact["id"]);
2301 // Generic birthday. We don't know the timezone. The year is irrelevant.
2303 $birthday = str_replace("1000", "1901", $birthday);
2305 if ($birthday != "") {
2306 $birthday = DateTimeFormat::utc($birthday, "Y-m-d");
2309 // this is to prevent multiple birthday notifications in a single year
2310 // if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
2312 if (substr($birthday, 5) === substr($contact["bd"], 5)) {
2313 $birthday = $contact["bd"];
2316 $fields = ['name' => $name, 'location' => $location,
2317 'name-date' => DateTimeFormat::utcNow(),
2318 'about' => $about, 'gender' => $gender,
2319 'addr' => $author, 'nick' => $nick, 'keywords' => $keywords,
2320 'unsearchable' => !$searchable, 'sensitive' => $nsfw];
2322 if (!empty($birthday)) {
2323 $fields['bd'] = $birthday;
2326 DBA::update('contact', $fields, ['id' => $contact['id']]);
2328 // @todo Update the public contact, then update the gcontact from that
2330 $gcontact = ["url" => $contact["url"], "network" => Protocol::DIASPORA, "generation" => 2,
2331 "photo" => $image_url, "name" => $name, "location" => $location,
2332 "about" => $about, "birthday" => $birthday, "gender" => $gender,
2333 "addr" => $author, "nick" => $nick, "keywords" => $keywords,
2334 "hide" => !$searchable, "nsfw" => $nsfw];
2336 $gcid = GContact::update($gcontact);
2338 GContact::link($gcid, $importer["uid"], $contact["id"]);
2340 Logger::log("Profile of contact ".$contact["id"]." stored for user ".$importer["uid"], Logger::DEBUG);
2346 * @brief Processes incoming friend requests
2348 * @param array $importer Array of the importer user
2349 * @param array $contact The contact that send the request
2351 * @throws \Exception
2353 private static function receiveRequestMakeFriend(array $importer, array $contact)
2355 if ($contact["rel"] == Contact::SHARING) {
2358 ['rel' => Contact::FRIEND, 'writable' => true],
2359 ['id' => $contact["id"], 'uid' => $importer["uid"]]
2365 * @brief Processes incoming sharing notification
2367 * @param array $importer Array of the importer user
2368 * @param object $data The message object
2370 * @return bool Success
2371 * @throws \Exception
2373 private static function receiveContactRequest(array $importer, $data)
2375 $author = XML::unescape($data->author);
2376 $recipient = XML::unescape($data->recipient);
2378 if (!$author || !$recipient) {
2382 // the current protocol version doesn't know these fields
2383 // That means that we will assume their existance
2384 if (isset($data->following)) {
2385 $following = (XML::unescape($data->following) == "true");
2390 if (isset($data->sharing)) {
2391 $sharing = (XML::unescape($data->sharing) == "true");
2396 $contact = self::contactByHandle($importer["uid"], $author);
2398 // perhaps we were already sharing with this person. Now they're sharing with us.
2399 // That makes us friends.
2402 Logger::log("Author ".$author." (Contact ".$contact["id"].") wants to follow us.", Logger::DEBUG);
2403 self::receiveRequestMakeFriend($importer, $contact);
2405 // refetch the contact array
2406 $contact = self::contactByHandle($importer["uid"], $author);
2408 // If we are now friends, we are sending a share message.
2409 // Normally we needn't to do so, but the first message could have been vanished.
2410 if (in_array($contact["rel"], [Contact::FRIEND])) {
2411 $user = DBA::selectFirst('user', [], ['uid' => $importer["uid"]]);
2412 if (DBA::isResult($user)) {
2413 Logger::log("Sending share message to author ".$author." - Contact: ".$contact["id"]." - User: ".$importer["uid"], Logger::DEBUG);
2414 self::sendShare($user, $contact);
2419 Logger::log("Author ".$author." doesn't want to follow us anymore.", Logger::DEBUG);
2420 Contact::removeFollower($importer, $contact);
2425 if (!$following && $sharing && in_array($importer["page-flags"], [User::PAGE_FLAGS_SOAPBOX, User::PAGE_FLAGS_NORMAL])) {
2426 Logger::log("Author ".$author." wants to share with us - but doesn't want to listen. Request is ignored.", Logger::DEBUG);
2428 } elseif (!$following && !$sharing) {
2429 Logger::log("Author ".$author." doesn't want anything - and we don't know the author. Request is ignored.", Logger::DEBUG);
2431 } elseif (!$following && $sharing) {
2432 Logger::log("Author ".$author." wants to share with us.", Logger::DEBUG);
2433 } elseif ($following && $sharing) {
2434 Logger::log("Author ".$author." wants to have a bidirectional conection.", Logger::DEBUG);
2435 } elseif ($following && !$sharing) {
2436 Logger::log("Author ".$author." wants to listen to us.", Logger::DEBUG);
2439 $ret = self::personByHandle($author);
2441 if (!$ret || ($ret["network"] != Protocol::DIASPORA)) {
2442 Logger::log("Cannot resolve diaspora handle ".$author." for ".$recipient);
2446 $batch = (($ret["batch"]) ? $ret["batch"] : implode("/", array_slice(explode("/", $ret["url"]), 0, 3))."/receive/public");
2449 "INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`nurl`,`batch`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
2450 VALUES (%d, '%s', '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s','%s',%d,%d)",
2451 intval($importer["uid"]),
2452 DBA::escape($ret["network"]),
2453 DBA::escape($ret["addr"]),
2454 DateTimeFormat::utcNow(),
2455 DBA::escape($ret["url"]),
2456 DBA::escape(Strings::normaliseLink($ret["url"])),
2457 DBA::escape($batch),
2458 DBA::escape($ret["name"]),
2459 DBA::escape($ret["nick"]),
2460 DBA::escape($ret["photo"]),
2461 DBA::escape($ret["pubkey"]),
2462 DBA::escape($ret["notify"]),
2463 DBA::escape($ret["poll"]),
2468 // find the contact record we just created
2470 $contact_record = self::contactByHandle($importer["uid"], $author);
2472 if (!$contact_record) {
2473 Logger::log("unable to locate newly created contact record.");
2477 Logger::log("Author ".$author." was added as contact number ".$contact_record["id"].".", Logger::DEBUG);
2479 Group::addMember(User::getDefaultGroup($importer['uid'], $ret["network"]), $contact_record['id']);
2481 Contact::updateAvatar($ret["photo"], $importer['uid'], $contact_record["id"], true);
2483 if (in_array($importer["page-flags"], [User::PAGE_FLAGS_NORMAL, User::PAGE_FLAGS_PRVGROUP])) {
2484 Logger::log("Sending intra message for author ".$author.".", Logger::DEBUG);
2486 $hash = Strings::getRandomHex().(string)time(); // Generate a confirm_key
2489 "INSERT INTO `intro` (`uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime`)
2490 VALUES (%d, %d, %d, %d, '%s', '%s', '%s')",
2491 intval($importer["uid"]),
2492 intval($contact_record["id"]),
2495 DBA::escape(L10n::t("Sharing notification from Diaspora network")),
2497 DBA::escape(DateTimeFormat::utcNow())
2500 // automatic friend approval
2502 Logger::log("Does an automatic friend approval for author ".$author.".", Logger::DEBUG);
2504 Contact::updateAvatar($contact_record["photo"], $importer["uid"], $contact_record["id"]);
2507 * technically they are sharing with us (Contact::SHARING),
2508 * but if our page-type is Profile::PAGE_COMMUNITY or Profile::PAGE_SOAPBOX
2509 * we are going to change the relationship and make them a follower.
2511 if (($importer["page-flags"] == User::PAGE_FLAGS_FREELOVE) && $sharing && $following) {
2512 $new_relation = Contact::FRIEND;
2513 } elseif (($importer["page-flags"] == User::PAGE_FLAGS_FREELOVE) && $sharing) {
2514 $new_relation = Contact::SHARING;
2516 $new_relation = Contact::FOLLOWER;
2520 "UPDATE `contact` SET `rel` = %d,
2528 intval($new_relation),
2529 DBA::escape(DateTimeFormat::utcNow()),
2530 DBA::escape(DateTimeFormat::utcNow()),
2531 intval($contact_record["id"])
2534 $user = DBA::selectFirst('user', [], ['uid' => $importer["uid"]]);
2535 if (DBA::isResult($user)) {
2536 Logger::log("Sending share message (Relation: ".$new_relation.") to author ".$author." - Contact: ".$contact_record["id"]." - User: ".$importer["uid"], Logger::DEBUG);
2537 self::sendShare($user, $contact_record);
2539 // Send the profile data, maybe it weren't transmitted before
2540 self::sendProfile($importer["uid"], [$contact_record]);
2548 * @brief Fetches a message with a given guid
2550 * @param string $guid message guid
2551 * @param string $orig_author handle of the original post
2552 * @return array The fetched item
2553 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2554 * @throws \ImagickException
2556 public static function originalItem($guid, $orig_author)
2559 Logger::log('Empty guid. Quitting.');
2563 // Do we already have this item?
2564 $fields = ['body', 'tag', 'app', 'created', 'object-type', 'uri', 'guid',
2565 'author-name', 'author-link', 'author-avatar'];
2566 $condition = ['guid' => $guid, 'visible' => true, 'deleted' => false, 'private' => false];
2567 $item = Item::selectFirst($fields, $condition);
2569 if (DBA::isResult($item)) {
2570 Logger::log("reshared message ".$guid." already exists on system.");
2572 // Maybe it is already a reshared item?
2573 // Then refetch the content, if it is a reshare from a reshare.
2574 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2575 if (self::isReshare($item["body"], true)) {
2577 } elseif (self::isReshare($item["body"], false) || strstr($item["body"], "[share")) {
2578 $item["body"] = Markdown::toBBCode(BBCode::toMarkdown($item["body"]));
2580 $item["body"] = self::replacePeopleGuid($item["body"], $item["author-link"]);
2582 // Add OEmbed and other information to the body
2583 $item["body"] = add_page_info_to_body($item["body"], false, true);
2591 if (!DBA::isResult($item)) {
2592 if (empty($orig_author)) {
2593 Logger::log('Empty author for guid ' . $guid . '. Quitting.');
2597 $server = "https://".substr($orig_author, strpos($orig_author, "@") + 1);
2598 Logger::log("1st try: reshared message ".$guid." will be fetched via SSL from the server ".$server);
2599 $stored = self::storeByGuid($guid, $server);
2602 $server = "http://".substr($orig_author, strpos($orig_author, "@") + 1);
2603 Logger::log("2nd try: reshared message ".$guid." will be fetched without SSL from the server ".$server);
2604 $stored = self::storeByGuid($guid, $server);
2608 $fields = ['body', 'tag', 'app', 'created', 'object-type', 'uri', 'guid',
2609 'author-name', 'author-link', 'author-avatar'];
2610 $condition = ['guid' => $guid, 'visible' => true, 'deleted' => false, 'private' => false];
2611 $item = Item::selectFirst($fields, $condition);
2613 if (DBA::isResult($item)) {
2614 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2615 if (self::isReshare($item["body"], false)) {
2616 $item["body"] = Markdown::toBBCode(BBCode::toMarkdown($item["body"]));
2617 $item["body"] = self::replacePeopleGuid($item["body"], $item["author-link"]);
2628 * @brief Stores a reshare activity
2630 * @param array $item Array of reshare post
2631 * @param integer $parent_message_id Id of the parent post
2632 * @param string $guid GUID string of reshare action
2633 * @param string $author Author handle
2635 private static function addReshareActivity($item, $parent_message_id, $guid, $author)
2637 $parent = Item::selectFirst(['uri', 'guid'], ['id' => $parent_message_id]);
2641 $datarray['uid'] = $item['uid'];
2642 $datarray['contact-id'] = $item['contact-id'];
2643 $datarray['network'] = $item['network'];
2645 $datarray['author-link'] = $item['author-link'];
2646 $datarray['author-id'] = $item['author-id'];
2648 $datarray['owner-link'] = $datarray['author-link'];
2649 $datarray['owner-id'] = $datarray['author-id'];
2651 $datarray['guid'] = $parent['guid'] . '-' . $guid;
2652 $datarray['uri'] = self::getUriFromGuid($author, $datarray['guid']);
2653 $datarray['parent-uri'] = $parent['uri'];
2655 $datarray['verb'] = $datarray['body'] = ACTIVITY2_ANNOUNCE;
2656 $datarray['gravity'] = GRAVITY_ACTIVITY;
2657 $datarray['object-type'] = ACTIVITY_OBJ_NOTE;
2659 $datarray['protocol'] = $item['protocol'];
2661 $datarray['plink'] = self::plink($author, $datarray['guid']);
2662 $datarray['private'] = $item['private'];
2663 $datarray['changed'] = $datarray['created'] = $datarray['edited'] = $item['created'];
2665 $message_id = Item::insert($datarray);
2668 Logger::info('Stored reshare activity.', ['guid' => $guid, 'id' => $message_id]);
2669 if ($datarray['uid'] == 0) {
2670 Item::distribute($message_id);
2676 * @brief Processes a reshare message
2678 * @param array $importer Array of the importer user
2679 * @param object $data The message object
2680 * @param string $xml The original XML of the message
2682 * @return int the message id
2683 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2684 * @throws \ImagickException
2686 private static function receiveReshare(array $importer, $data, $xml)
2688 $author = Strings::escapeTags(XML::unescape($data->author));
2689 $guid = Strings::escapeTags(XML::unescape($data->guid));
2690 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
2691 $root_author = Strings::escapeTags(XML::unescape($data->root_author));
2692 $root_guid = Strings::escapeTags(XML::unescape($data->root_guid));
2693 /// @todo handle unprocessed property "provider_display_name"
2694 $public = Strings::escapeTags(XML::unescape($data->public));
2696 $contact = self::allowedContactByHandle($importer, $author, false);
2701 $message_id = self::messageExists($importer["uid"], $guid);
2706 $original_item = self::originalItem($root_guid, $root_author);
2707 if (!$original_item) {
2711 $orig_url = System::baseUrl()."/display/".$original_item["guid"];
2715 $datarray["uid"] = $importer["uid"];
2716 $datarray["contact-id"] = $contact["id"];
2717 $datarray["network"] = Protocol::DIASPORA;
2719 $datarray["author-link"] = $contact["url"];
2720 $datarray["author-id"] = Contact::getIdForURL($contact["url"], 0);
2722 $datarray["owner-link"] = $datarray["author-link"];
2723 $datarray["owner-id"] = $datarray["author-id"];
2725 $datarray["guid"] = $guid;
2726 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
2728 $datarray["verb"] = ACTIVITY_POST;
2729 $datarray["gravity"] = GRAVITY_PARENT;
2731 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
2732 $datarray["source"] = $xml;
2734 $prefix = share_header(
2735 $original_item["author-name"],
2736 $original_item["author-link"],
2737 $original_item["author-avatar"],
2738 $original_item["guid"],
2739 $original_item["created"],
2742 $datarray["body"] = $prefix.$original_item["body"]."[/share]";
2744 $datarray["tag"] = $original_item["tag"];
2745 $datarray["app"] = $original_item["app"];
2747 $datarray["plink"] = self::plink($author, $guid);
2748 $datarray["private"] = (($public == "false") ? 1 : 0);
2749 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
2751 $datarray["object-type"] = $original_item["object-type"];
2753 self::fetchGuid($datarray);
2754 $message_id = Item::insert($datarray);
2756 self::sendParticipation($contact, $datarray);
2758 $root_message_id = self::messageExists($importer["uid"], $root_guid);
2759 if ($root_message_id) {
2760 self::addReshareActivity($datarray, $root_message_id, $guid, $author);
2764 Logger::log("Stored reshare ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
2765 if ($datarray['uid'] == 0) {
2766 Item::distribute($message_id);
2775 * @brief Processes retractions
2777 * @param array $importer Array of the importer user
2778 * @param array $contact The contact of the item owner
2779 * @param object $data The message object
2781 * @return bool success
2782 * @throws \Exception
2784 private static function itemRetraction(array $importer, array $contact, $data)
2786 $author = Strings::escapeTags(XML::unescape($data->author));
2787 $target_guid = Strings::escapeTags(XML::unescape($data->target_guid));
2788 $target_type = Strings::escapeTags(XML::unescape($data->target_type));
2790 $person = self::personByHandle($author);
2791 if (!is_array($person)) {
2792 Logger::log("unable to find author detail for ".$author);
2796 if (empty($contact["url"])) {
2797 $contact["url"] = $person["url"];
2800 // Fetch items that are about to be deleted
2801 $fields = ['uid', 'id', 'parent', 'parent-uri', 'author-link', 'file'];
2803 // When we receive a public retraction, we delete every item that we find.
2804 if ($importer['uid'] == 0) {
2805 $condition = ['guid' => $target_guid, 'deleted' => false];
2807 $condition = ['guid' => $target_guid, 'deleted' => false, 'uid' => $importer['uid']];
2810 $r = Item::select($fields, $condition);
2811 if (!DBA::isResult($r)) {
2812 Logger::log("Target guid ".$target_guid." was not found on this system for user ".$importer['uid'].".");
2816 while ($item = Item::fetch($r)) {
2817 if (strstr($item['file'], '[')) {
2818 Logger::log("Target guid " . $target_guid . " for user " . $item['uid'] . " is filed. So it won't be deleted.", Logger::DEBUG);
2822 // Fetch the parent item
2823 $parent = Item::selectFirst(['author-link'], ['id' => $item["parent"]]);
2825 // Only delete it if the parent author really fits
2826 if (!Strings::compareLink($parent["author-link"], $contact["url"]) && !Strings::compareLink($item["author-link"], $contact["url"])) {
2827 Logger::log("Thread author ".$parent["author-link"]." and item author ".$item["author-link"]." don't fit to expected contact ".$contact["url"], Logger::DEBUG);
2831 Item::delete(['id' => $item['id']]);
2833 Logger::log("Deleted target ".$target_guid." (".$item["id"].") from user ".$item["uid"]." parent: ".$item["parent"], Logger::DEBUG);
2840 * @brief Receives retraction messages
2842 * @param array $importer Array of the importer user
2843 * @param string $sender The sender of the message
2844 * @param object $data The message object
2846 * @return bool Success
2847 * @throws \Exception
2849 private static function receiveRetraction(array $importer, $sender, $data)
2851 $target_type = Strings::escapeTags(XML::unescape($data->target_type));
2853 $contact = self::contactByHandle($importer["uid"], $sender);
2854 if (!$contact && (in_array($target_type, ["Contact", "Person"]))) {
2855 Logger::log("cannot find contact for sender: ".$sender." and user ".$importer["uid"]);
2863 Logger::log("Got retraction for ".$target_type.", sender ".$sender." and user ".$importer["uid"], Logger::DEBUG);
2865 switch ($target_type) {
2870 case "StatusMessage":
2871 return self::itemRetraction($importer, $contact, $data);
2873 case "PollParticipation":
2875 // Currently unsupported
2879 Logger::log("Unknown target type ".$target_type);
2886 * @brief Receives status messages
2888 * @param array $importer Array of the importer user
2889 * @param SimpleXMLElement $data The message object
2890 * @param string $xml The original XML of the message
2892 * @return int The message id of the newly created item
2893 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2894 * @throws \ImagickException
2896 private static function receiveStatusMessage(array $importer, SimpleXMLElement $data, $xml)
2898 $author = Strings::escapeTags(XML::unescape($data->author));
2899 $guid = Strings::escapeTags(XML::unescape($data->guid));
2900 $created_at = DateTimeFormat::utc(Strings::escapeTags(XML::unescape($data->created_at)));
2901 $public = Strings::escapeTags(XML::unescape($data->public));
2902 $text = XML::unescape($data->text);
2903 $provider_display_name = Strings::escapeTags(XML::unescape($data->provider_display_name));
2905 $contact = self::allowedContactByHandle($importer, $author, false);
2910 $message_id = self::messageExists($importer["uid"], $guid);
2916 if ($data->location) {
2917 foreach ($data->location->children() as $fieldname => $data) {
2918 $address[$fieldname] = Strings::escapeTags(XML::unescape($data));
2922 $body = Markdown::toBBCode($text);
2926 // Attach embedded pictures to the body
2928 foreach ($data->photo as $photo) {
2929 $body = "[img]".XML::unescape($photo->remote_photo_path).
2930 XML::unescape($photo->remote_photo_name)."[/img]\n".$body;
2933 $datarray["object-type"] = ACTIVITY_OBJ_IMAGE;
2935 $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
2937 // Add OEmbed and other information to the body
2938 if (!self::isRedmatrix($contact["url"])) {
2939 $body = add_page_info_to_body($body, false, true);
2943 /// @todo enable support for polls
2944 //if ($data->poll) {
2945 // foreach ($data->poll AS $poll)
2950 /// @todo enable support for events
2952 $datarray["uid"] = $importer["uid"];
2953 $datarray["contact-id"] = $contact["id"];
2954 $datarray["network"] = Protocol::DIASPORA;
2956 $datarray["author-link"] = $contact["url"];
2957 $datarray["author-id"] = Contact::getIdForURL($contact["url"], 0);
2959 $datarray["owner-link"] = $datarray["author-link"];
2960 $datarray["owner-id"] = $datarray["author-id"];
2962 $datarray["guid"] = $guid;
2963 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
2965 $datarray["verb"] = ACTIVITY_POST;
2966 $datarray["gravity"] = GRAVITY_PARENT;
2968 $datarray["protocol"] = Conversation::PARCEL_DIASPORA;
2969 $datarray["source"] = $xml;
2971 $datarray["body"] = self::replacePeopleGuid($body, $contact["url"]);
2973 if ($provider_display_name != "") {
2974 $datarray["app"] = $provider_display_name;
2977 $datarray["plink"] = self::plink($author, $guid);
2978 $datarray["private"] = (($public == "false") ? 1 : 0);
2979 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
2981 if (isset($address["address"])) {
2982 $datarray["location"] = $address["address"];
2985 if (isset($address["lat"]) && isset($address["lng"])) {
2986 $datarray["coord"] = $address["lat"]." ".$address["lng"];
2989 self::fetchGuid($datarray);
2990 $message_id = Item::insert($datarray);
2992 self::sendParticipation($contact, $datarray);
2995 Logger::log("Stored item ".$datarray["guid"]." with message id ".$message_id, Logger::DEBUG);
2996 if ($datarray['uid'] == 0) {
2997 Item::distribute($message_id);
3005 /* ************************************************************************************** *
3006 * Here are all the functions that are needed to transmit data with the Diaspora protocol *
3007 * ************************************************************************************** */
3010 * @brief returnes the handle of a contact
3012 * @param array $contact contact array
3014 * @return string the handle in the format user@domain.tld
3015 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3017 private static function myHandle(array $contact)
3019 if (!empty($contact["addr"])) {
3020 return $contact["addr"];
3023 // Normally we should have a filled "addr" field - but in the past this wasn't the case
3024 // So - just in case - we build the the address here.
3025 if ($contact["nickname"] != "") {
3026 $nick = $contact["nickname"];
3028 $nick = $contact["nick"];
3031 return $nick . "@" . substr(System::baseUrl(), strpos(System::baseUrl(), "://") + 3);
3036 * @brief Creates the data for a private message in the new format
3038 * @param string $msg The message that is to be transmitted
3039 * @param array $user The record of the sender
3040 * @param array $contact Target of the communication
3041 * @param string $prvkey The private key of the sender
3042 * @param string $pubkey The public key of the receiver
3044 * @return string The encrypted data
3045 * @throws \Exception
3047 public static function encodePrivateData($msg, array $user, array $contact, $prvkey, $pubkey)
3049 Logger::log("Message: ".$msg, Logger::DATA);
3051 // without a public key nothing will work
3053 Logger::log("pubkey missing: contact id: ".$contact["id"]);
3057 $aes_key = openssl_random_pseudo_bytes(32);
3058 $b_aes_key = base64_encode($aes_key);
3059 $iv = openssl_random_pseudo_bytes(16);
3060 $b_iv = base64_encode($iv);
3062 $ciphertext = self::aesEncrypt($aes_key, $iv, $msg);
3064 $json = json_encode(["iv" => $b_iv, "key" => $b_aes_key]);
3066 $encrypted_key_bundle = "";
3067 openssl_public_encrypt($json, $encrypted_key_bundle, $pubkey);
3069 $json_object = json_encode(
3070 ["aes_key" => base64_encode($encrypted_key_bundle),
3071 "encrypted_magic_envelope" => base64_encode($ciphertext)]
3074 return $json_object;
3078 * @brief Creates the envelope for the "fetch" endpoint and for the new format
3080 * @param string $msg The message that is to be transmitted
3081 * @param array $user The record of the sender
3083 * @return string The envelope
3084 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3086 public static function buildMagicEnvelope($msg, array $user)
3088 $b64url_data = Strings::base64UrlEncode($msg);
3089 $data = str_replace(["\n", "\r", " ", "\t"], ["", "", "", ""], $b64url_data);
3091 $key_id = Strings::base64UrlEncode(self::myHandle($user));
3092 $type = "application/xml";
3093 $encoding = "base64url";
3094 $alg = "RSA-SHA256";
3095 $signable_data = $data.".".Strings::base64UrlEncode($type).".".Strings::base64UrlEncode($encoding).".".Strings::base64UrlEncode($alg);
3097 // Fallback if the private key wasn't transmitted in the expected field
3098 if ($user['uprvkey'] == "") {
3099 $user['uprvkey'] = $user['prvkey'];
3102 $signature = Crypto::rsaSign($signable_data, $user["uprvkey"]);
3103 $sig = Strings::base64UrlEncode($signature);
3105 $xmldata = ["me:env" => ["me:data" => $data,
3106 "@attributes" => ["type" => $type],
3107 "me:encoding" => $encoding,
3110 "@attributes2" => ["key_id" => $key_id]]];
3112 $namespaces = ["me" => "http://salmon-protocol.org/ns/magic-env"];
3114 return XML::fromArray($xmldata, $xml, false, $namespaces);
3118 * @brief Create the envelope for a message
3120 * @param string $msg The message that is to be transmitted
3121 * @param array $user The record of the sender
3122 * @param array $contact Target of the communication
3123 * @param string $prvkey The private key of the sender
3124 * @param string $pubkey The public key of the receiver
3125 * @param bool $public Is the message public?
3127 * @return string The message that will be transmitted to other servers
3128 * @throws \Exception
3130 public static function buildMessage($msg, array $user, array $contact, $prvkey, $pubkey, $public = false)
3132 // The message is put into an envelope with the sender's signature
3133 $envelope = self::buildMagicEnvelope($msg, $user);
3135 // Private messages are put into a second envelope, encrypted with the receivers public key
3137 $envelope = self::encodePrivateData($envelope, $user, $contact, $prvkey, $pubkey);
3144 * @brief Creates a signature for a message
3146 * @param array $owner the array of the owner of the message
3147 * @param array $message The message that is to be signed
3149 * @return string The signature
3151 private static function signature($owner, $message)
3154 unset($sigmsg["author_signature"]);
3155 unset($sigmsg["parent_author_signature"]);
3157 $signed_text = implode(";", $sigmsg);
3159 return base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3163 * @brief Transmit a message to a target server
3165 * @param array $owner the array of the item owner
3166 * @param array $contact Target of the communication
3167 * @param string $envelope The message that is to be transmitted
3168 * @param bool $public_batch Is it a public post?
3169 * @param string $guid message guid
3171 * @return int Result of the transmission
3172 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3173 * @throws \ImagickException
3175 private static function transmit(array $owner, array $contact, $envelope, $public_batch, $guid = "")
3177 $enabled = intval(Config::get("system", "diaspora_enabled"));
3182 $logid = Strings::getRandomHex(4);
3184 $dest_url = ($public_batch ? $contact["batch"] : $contact["notify"]);
3186 // We always try to use the data from the fcontact table.
3187 // This is important for transmitting data to Friendica servers.
3188 if (!empty($contact['addr'])) {
3189 $fcontact = self::personByHandle($contact['addr']);
3190 if (!empty($fcontact)) {
3191 $dest_url = ($public_batch ? $fcontact["batch"] : $fcontact["notify"]);
3196 Logger::log("no url for contact: ".$contact["id"]." batch mode =".$public_batch);
3200 Logger::log("transmit: ".$logid."-".$guid." ".$dest_url);
3202 if (!intval(Config::get("system", "diaspora_test"))) {
3203 $content_type = (($public_batch) ? "application/magic-envelope+xml" : "application/json");
3205 $postResult = Network::post($dest_url."/", $envelope, ["Content-Type: ".$content_type]);
3206 $return_code = $postResult->getReturnCode();
3208 Logger::log("test_mode");
3212 Logger::log("transmit: ".$logid."-".$guid." to ".$dest_url." returns: ".$return_code);
3214 return $return_code ? $return_code : -1;
3219 * @brief Build the post xml
3221 * @param string $type The message type
3222 * @param array $message The message data
3224 * @return string The post XML
3226 public static function buildPostXml($type, $message)
3228 $data = [$type => $message];
3230 return XML::fromArray($data, $xml);
3234 * @brief Builds and transmit messages
3236 * @param array $owner the array of the item owner
3237 * @param array $contact Target of the communication
3238 * @param string $type The message type
3239 * @param array $message The message data
3240 * @param bool $public_batch Is it a public post?
3241 * @param string $guid message guid
3243 * @return int Result of the transmission
3244 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3245 * @throws \ImagickException
3247 private static function buildAndTransmit(array $owner, array $contact, $type, $message, $public_batch = false, $guid = "")
3249 $msg = self::buildPostXml($type, $message);
3251 Logger::log('message: '.$msg, Logger::DATA);
3252 Logger::log('send guid '.$guid, Logger::DEBUG);
3254 // Fallback if the private key wasn't transmitted in the expected field
3255 if (empty($owner['uprvkey'])) {
3256 $owner['uprvkey'] = $owner['prvkey'];
3259 $envelope = self::buildMessage($msg, $owner, $contact, $owner['uprvkey'], $contact['pubkey'], $public_batch);
3261 $return_code = self::transmit($owner, $contact, $envelope, $public_batch, $guid);
3263 Logger::log("guid: ".$guid." result ".$return_code, Logger::DEBUG);
3265 return $return_code;
3269 * @brief sends a participation (Used to get all further updates)
3271 * @param array $contact Target of the communication
3272 * @param array $item Item array
3274 * @return int The result of the transmission
3275 * @throws \Exception
3277 private static function sendParticipation(array $contact, array $item)
3279 // Don't send notifications for private postings
3280 if ($item['private']) {
3284 $cachekey = "diaspora:sendParticipation:".$item['guid'];
3286 $result = Cache::get($cachekey);
3287 if (!is_null($result)) {
3291 // Fetch some user id to have a valid handle to transmit the participation.
3292 // In fact it doesn't matter which user sends this - but it is needed by the protocol.
3293 // If the item belongs to a user, we take this user id.
3294 if ($item['uid'] == 0) {
3295 $condition = ['verified' => true, 'blocked' => false, 'account_removed' => false, 'account_expired' => false];
3296 $first_user = DBA::selectFirst('user', ['uid'], $condition);
3297 $owner = User::getOwnerDataById($first_user['uid']);
3299 $owner = User::getOwnerDataById($item['uid']);
3302 $author = self::myHandle($owner);
3304 $message = ["author" => $author,
3305 "guid" => System::createUUID(),
3306 "parent_type" => "Post",
3307 "parent_guid" => $item["guid"]];
3309 Logger::log("Send participation for ".$item["guid"]." by ".$author, Logger::DEBUG);
3311 // It doesn't matter what we store, we only want to avoid sending repeated notifications for the same item
3312 Cache::set($cachekey, $item["guid"], Cache::QUARTER_HOUR);
3314 return self::buildAndTransmit($owner, $contact, "participation", $message);
3318 * @brief sends an account migration
3320 * @param array $owner the array of the item owner
3321 * @param array $contact Target of the communication
3322 * @param int $uid User ID
3324 * @return int The result of the transmission
3325 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3326 * @throws \ImagickException
3328 public static function sendAccountMigration(array $owner, array $contact, $uid)
3330 $old_handle = PConfig::get($uid, 'system', 'previous_addr');
3331 $profile = self::createProfileData($uid);
3333 $signed_text = 'AccountMigration:'.$old_handle.':'.$profile['author'];
3334 $signature = base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3336 $message = ["author" => $old_handle,
3337 "profile" => $profile,
3338 "signature" => $signature];
3340 Logger::log("Send account migration ".print_r($message, true), Logger::DEBUG);
3342 return self::buildAndTransmit($owner, $contact, "account_migration", $message);
3346 * @brief Sends a "share" message
3348 * @param array $owner the array of the item owner
3349 * @param array $contact Target of the communication
3351 * @return int The result of the transmission
3352 * @throws \Exception
3354 public static function sendShare(array $owner, array $contact)
3357 * @todo support the different possible combinations of "following" and "sharing"
3358 * Currently, Diaspora only interprets the "sharing" field
3360 * Before switching this code productive, we have to check all "sendShare" calls if "rel" is set correctly
3364 switch ($contact["rel"]) {
3365 case Contact::FRIEND:
3369 case Contact::SHARING:
3373 case Contact::FOLLOWER:
3379 $message = ["author" => self::myHandle($owner),
3380 "recipient" => $contact["addr"],
3381 "following" => "true",
3382 "sharing" => "true"];
3384 Logger::log("Send share ".print_r($message, true), Logger::DEBUG);
3386 return self::buildAndTransmit($owner, $contact, "contact", $message);
3390 * @brief sends an "unshare"
3392 * @param array $owner the array of the item owner
3393 * @param array $contact Target of the communication
3395 * @return int The result of the transmission
3396 * @throws \Exception
3398 public static function sendUnshare(array $owner, array $contact)
3400 $message = ["author" => self::myHandle($owner),
3401 "recipient" => $contact["addr"],
3402 "following" => "false",
3403 "sharing" => "false"];
3405 Logger::log("Send unshare ".print_r($message, true), Logger::DEBUG);
3407 return self::buildAndTransmit($owner, $contact, "contact", $message);
3411 * @brief Checks a message body if it is a reshare
3413 * @param string $body The message body that is to be check
3414 * @param bool $complete Should it be a complete check or a simple check?
3416 * @return array|bool Reshare details or "false" if no reshare
3417 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3418 * @throws \ImagickException
3420 public static function isReshare($body, $complete = true)
3422 $body = trim($body);
3424 // Skip if it isn't a pure repeated messages
3425 // Does it start with a share?
3426 if ((strpos($body, "[share") > 0) && $complete) {
3430 // Does it end with a share?
3431 if (strlen($body) > (strrpos($body, "[/share]") + 8)) {
3435 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", "$1", $body);
3436 // Skip if there is no shared message in there
3437 if ($body == $attributes) {
3441 // If we don't do the complete check we quit here
3444 preg_match("/guid='(.*?)'/ism", $attributes, $matches);
3445 if (!empty($matches[1])) {
3446 $guid = $matches[1];
3449 preg_match('/guid="(.*?)"/ism', $attributes, $matches);
3450 if (!empty($matches[1])) {
3451 $guid = $matches[1];
3454 if (($guid != "") && $complete) {
3455 $condition = ['guid' => $guid, 'network' => [Protocol::DFRN, Protocol::DIASPORA]];
3456 $item = Item::selectFirst(['contact-id'], $condition);
3457 if (DBA::isResult($item)) {
3459 $ret["root_handle"] = self::handleFromContact($item["contact-id"]);
3460 $ret["root_guid"] = $guid;
3462 } elseif ($complete) {
3463 // We are resharing something that isn't a DFRN or Diaspora post.
3464 // So we have to return "false" on "$complete" to not trigger a reshare.
3467 } elseif (($guid == "") && $complete) {
3471 $ret["root_guid"] = $guid;
3474 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
3475 if (!empty($matches[1])) {
3476 $profile = $matches[1];
3479 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
3480 if (!empty($matches[1])) {
3481 $profile = $matches[1];
3486 if ($profile != "") {
3487 if (Contact::getIdForURL($profile)) {
3488 $author = Contact::getDetailsByURL($profile);
3489 $ret["root_handle"] = $author['addr'];
3493 if (empty($ret) && !$complete) {
3501 * @brief Create an event array
3503 * @param integer $event_id The id of the event
3505 * @return array with event data
3506 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3508 private static function buildEvent($event_id)
3510 $r = q("SELECT `guid`, `uid`, `start`, `finish`, `nofinish`, `summary`, `desc`, `location`, `adjust` FROM `event` WHERE `id` = %d", intval($event_id));
3511 if (!DBA::isResult($r)) {
3519 $r = q("SELECT `timezone` FROM `user` WHERE `uid` = %d", intval($event['uid']));
3520 if (!DBA::isResult($r)) {
3526 $r = q("SELECT `addr`, `nick` FROM `contact` WHERE `uid` = %d AND `self`", intval($event['uid']));
3527 if (!DBA::isResult($r)) {
3533 $eventdata['author'] = self::myHandle($owner);
3535 if ($event['guid']) {
3536 $eventdata['guid'] = $event['guid'];
3539 $mask = DateTimeFormat::ATOM;
3541 /// @todo - establish "all day" events in Friendica
3542 $eventdata["all_day"] = "false";
3544 $eventdata['timezone'] = 'UTC';
3545 if (!$event['adjust'] && $user['timezone']) {
3546 $eventdata['timezone'] = $user['timezone'];
3549 if ($event['start']) {
3550 $eventdata['start'] = DateTimeFormat::convert($event['start'], "UTC", $eventdata['timezone'], $mask);
3552 if ($event['finish'] && !$event['nofinish']) {
3553 $eventdata['end'] = DateTimeFormat::convert($event['finish'], "UTC", $eventdata['timezone'], $mask);
3555 if ($event['summary']) {
3556 $eventdata['summary'] = html_entity_decode(BBCode::toMarkdown($event['summary']));
3558 if ($event['desc']) {
3559 $eventdata['description'] = html_entity_decode(BBCode::toMarkdown($event['desc']));
3561 if ($event['location']) {
3562 $event['location'] = preg_replace("/\[map\](.*?)\[\/map\]/ism", '$1', $event['location']);
3563 $coord = Map::getCoordinates($event['location']);
3566 $location["address"] = html_entity_decode(BBCode::toMarkdown($event['location']));
3567 if (!empty($coord['lat']) && !empty($coord['lon'])) {
3568 $location["lat"] = $coord['lat'];
3569 $location["lng"] = $coord['lon'];
3571 $location["lat"] = 0;
3572 $location["lng"] = 0;
3574 $eventdata['location'] = $location;
3581 * @brief Create a post (status message or reshare)
3583 * @param array $item The item that will be exported
3584 * @param array $owner the array of the item owner
3587 * 'type' -> Message type ("status_message" or "reshare")
3588 * 'message' -> Array of XML elements of the status
3589 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3590 * @throws \ImagickException
3592 public static function buildStatus(array $item, array $owner)
3594 $cachekey = "diaspora:buildStatus:".$item['guid'];
3596 $result = Cache::get($cachekey);
3597 if (!is_null($result)) {
3601 $myaddr = self::myHandle($owner);
3603 $public = ($item["private"] ? "false" : "true");
3605 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
3606 $edited = DateTimeFormat::utc($item["edited"] ?? $item["created"], DateTimeFormat::ATOM);
3608 // Detect a share element and do a reshare
3609 if (!$item['private'] && ($ret = self::isReshare($item["body"]))) {
3610 $message = ["author" => $myaddr,
3611 "guid" => $item["guid"],
3612 "created_at" => $created,
3613 "root_author" => $ret["root_handle"],
3614 "root_guid" => $ret["root_guid"],
3615 "provider_display_name" => $item["app"],
3616 "public" => $public];
3620 $title = $item["title"];
3621 $body = $item["body"];
3623 if ($item['author-link'] != $item['owner-link']) {
3624 require_once 'mod/share.php';
3625 $body = share_header($item['author-name'], $item['author-link'], $item['author-avatar'],
3626 "", $item['created'], $item['plink']) . $body . '[/share]';
3629 // convert to markdown
3630 $body = html_entity_decode(BBCode::toMarkdown($body));
3633 if (strlen($title)) {
3634 $body = "## ".html_entity_decode($title)."\n\n".$body;
3637 if ($item["attach"]) {
3638 $cnt = preg_match_all('/href=\"(.*?)\"(.*?)title=\"(.*?)\"/ism', $item["attach"], $matches, PREG_SET_ORDER);
3640 $body .= "\n".L10n::t("Attachments:")."\n";
3641 foreach ($matches as $mtch) {
3642 $body .= "[".$mtch[3]."](".$mtch[1].")\n";
3649 if ($item["location"] != "")
3650 $location["address"] = $item["location"];
3652 if ($item["coord"] != "") {
3653 $coord = explode(" ", $item["coord"]);
3654 $location["lat"] = $coord[0];
3655 $location["lng"] = $coord[1];
3658 $message = ["author" => $myaddr,
3659 "guid" => $item["guid"],
3660 "created_at" => $created,
3661 "edited_at" => $edited,
3662 "public" => $public,
3664 "provider_display_name" => $item["app"],
3665 "location" => $location];
3667 // Diaspora rejects messages when they contain a location without "lat" or "lng"
3668 if (!isset($location["lat"]) || !isset($location["lng"])) {
3669 unset($message["location"]);
3672 if ($item['event-id'] > 0) {
3673 $event = self::buildEvent($item['event-id']);
3674 if (count($event)) {
3675 $message['event'] = $event;
3677 if (!empty($event['location']['address']) &&
3678 !empty($event['location']['lat']) &&
3679 !empty($event['location']['lng'])) {
3680 $message['location'] = $event['location'];
3683 /// @todo Once Diaspora supports it, we will remove the body and the location hack above
3684 // $message['text'] = '';
3688 $type = "status_message";
3691 $msg = ["type" => $type, "message" => $message];
3693 Cache::set($cachekey, $msg, Cache::QUARTER_HOUR);
3698 private static function prependParentAuthorMention($body, $profile_url)
3700 $profile = Contact::getDetailsByURL($profile_url);
3701 if (!empty($profile['addr'])
3702 && $profile['contact-type'] != Contact::TYPE_COMMUNITY
3703 && !strstr($body, $profile['addr'])
3704 && !strstr($body, $profile_url)
3706 $body = '@[url=' . $profile_url . ']' . $profile['name'] . '[/url] ' . $body;
3713 * @brief Sends a post
3715 * @param array $item The item that will be exported
3716 * @param array $owner the array of the item owner
3717 * @param array $contact Target of the communication
3718 * @param bool $public_batch Is it a public post?
3720 * @return int The result of the transmission
3721 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3722 * @throws \ImagickException
3724 public static function sendStatus(array $item, array $owner, array $contact, $public_batch = false)
3726 $status = self::buildStatus($item, $owner);
3728 return self::buildAndTransmit($owner, $contact, $status["type"], $status["message"], $public_batch, $item["guid"]);
3732 * @brief Creates a "like" object
3734 * @param array $item The item that will be exported
3735 * @param array $owner the array of the item owner
3737 * @return array The data for a "like"
3738 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3740 private static function constructLike(array $item, array $owner)
3742 $parent = Item::selectFirst(['guid', 'uri', 'parent-uri'], ['uri' => $item["thr-parent"]]);
3743 if (!DBA::isResult($parent)) {
3747 $target_type = ($parent["uri"] === $parent["parent-uri"] ? "Post" : "Comment");
3749 if ($item['verb'] === ACTIVITY_LIKE) {
3751 } elseif ($item['verb'] === ACTIVITY_DISLIKE) {
3752 $positive = "false";
3755 return(["author" => self::myHandle($owner),
3756 "guid" => $item["guid"],
3757 "parent_guid" => $parent["guid"],
3758 "parent_type" => $target_type,
3759 "positive" => $positive,
3760 "author_signature" => ""]);
3764 * @brief Creates an "EventParticipation" object
3766 * @param array $item The item that will be exported
3767 * @param array $owner the array of the item owner
3769 * @return array The data for an "EventParticipation"
3770 * @throws \Exception
3772 private static function constructAttend(array $item, array $owner)
3774 $parent = Item::selectFirst(['guid', 'uri', 'parent-uri'], ['uri' => $item["thr-parent"]]);
3775 if (!DBA::isResult($parent)) {
3779 switch ($item['verb']) {
3780 case ACTIVITY_ATTEND:
3781 $attend_answer = 'accepted';
3783 case ACTIVITY_ATTENDNO:
3784 $attend_answer = 'declined';
3786 case ACTIVITY_ATTENDMAYBE:
3787 $attend_answer = 'tentative';
3790 Logger::log('Unknown verb '.$item['verb'].' in item '.$item['guid']);
3794 return(["author" => self::myHandle($owner),
3795 "guid" => $item["guid"],
3796 "parent_guid" => $parent["guid"],
3797 "status" => $attend_answer,
3798 "author_signature" => ""]);
3802 * @brief Creates the object for a comment
3804 * @param array $item The item that will be exported
3805 * @param array $owner the array of the item owner
3807 * @return array|false The data for a comment
3808 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3810 private static function constructComment(array $item, array $owner)
3812 $cachekey = "diaspora:constructComment:".$item['guid'];
3814 $result = Cache::get($cachekey);
3815 if (!is_null($result)) {
3819 $toplevel_item = Item::selectFirst(['guid', 'author-link'], ['id' => $item["parent"], 'parent' => $item["parent"]]);
3820 if (!DBA::isResult($toplevel_item)) {
3821 Logger::error('Missing parent conversation item', ['parent' => $item["parent"]]);
3825 $thread_parent_item = $toplevel_item;
3826 if ($item['thr-parent'] != $item['parent-uri']) {
3827 $thread_parent_item = Item::selectFirst(['guid', 'author-link'], ['uri' => $item['thr-parent'], 'uid' => $item['uid']]);
3830 $body = $item["body"];
3832 if ((empty($item['uid']) || !Feature::isEnabled($item['uid'], 'explicit_mentions'))
3833 && !Config::get('system', 'disable_implicit_mentions')
3835 $body = self::prependParentAuthorMention($body, $thread_parent_item['author-link']);
3838 $text = html_entity_decode(BBCode::toMarkdown($body));
3839 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
3840 $edited = DateTimeFormat::utc($item["edited"], DateTimeFormat::ATOM);
3843 "author" => self::myHandle($owner),
3844 "guid" => $item["guid"],
3845 "created_at" => $created,
3846 "edited_at" => $edited,
3847 "parent_guid" => $toplevel_item["guid"],
3849 "author_signature" => ""
3852 // Send the thread parent guid only if it is a threaded comment
3853 if ($item['thr-parent'] != $item['parent-uri']) {
3854 $comment['thread_parent_guid'] = $thread_parent_item['guid'];
3857 Cache::set($cachekey, $comment, Cache::QUARTER_HOUR);
3863 * @brief Send a like or a comment
3865 * @param array $item The item that will be exported
3866 * @param array $owner the array of the item owner
3867 * @param array $contact Target of the communication
3868 * @param bool $public_batch Is it a public post?
3870 * @return int The result of the transmission
3871 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3872 * @throws \ImagickException
3874 public static function sendFollowup(array $item, array $owner, array $contact, $public_batch = false)
3876 if (in_array($item['verb'], [ACTIVITY_ATTEND, ACTIVITY_ATTENDNO, ACTIVITY_ATTENDMAYBE])) {
3877 $message = self::constructAttend($item, $owner);
3878 $type = "event_participation";
3879 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3880 $message = self::constructLike($item, $owner);
3882 } elseif (!in_array($item["verb"], [ACTIVITY_FOLLOW, ACTIVITY_TAG])) {
3883 $message = self::constructComment($item, $owner);
3887 if (empty($message)) {
3891 $message["author_signature"] = self::signature($owner, $message);
3893 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
3897 * @brief Creates a message from a signature record entry
3899 * @param array $item The item that will be exported
3900 * @return array The message
3902 private static function messageFromSignature(array $item)
3904 // Split the signed text
3905 $signed_parts = explode(";", $item['signed_text']);
3907 if ($item["deleted"]) {
3908 $message = ["author" => $item['signer'],
3909 "target_guid" => $signed_parts[0],
3910 "target_type" => $signed_parts[1]];
3911 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3912 $message = ["author" => $signed_parts[4],
3913 "guid" => $signed_parts[1],
3914 "parent_guid" => $signed_parts[3],
3915 "parent_type" => $signed_parts[2],
3916 "positive" => $signed_parts[0],
3917 "author_signature" => $item['signature'],
3918 "parent_author_signature" => ""];
3920 // Remove the comment guid
3921 $guid = array_shift($signed_parts);
3923 // Remove the parent guid
3924 $parent_guid = array_shift($signed_parts);
3926 // Remove the handle
3927 $handle = array_pop($signed_parts);
3930 "author" => $handle,
3932 "parent_guid" => $parent_guid,
3933 "text" => implode(";", $signed_parts),
3934 "author_signature" => $item['signature'],
3935 "parent_author_signature" => ""
3942 * @brief Relays messages (like, comment, retraction) to other servers if we are the thread owner
3944 * @param array $item The item that will be exported
3945 * @param array $owner the array of the item owner
3946 * @param array $contact Target of the communication
3947 * @param bool $public_batch Is it a public post?
3949 * @return int The result of the transmission
3950 * @throws \Exception
3952 public static function sendRelay(array $item, array $owner, array $contact, $public_batch = false)
3954 if ($item["deleted"]) {
3955 return self::sendRetraction($item, $owner, $contact, $public_batch, true);
3956 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3962 Logger::log("Got relayable data ".$type." for item ".$item["guid"]." (".$item["id"].")", Logger::DEBUG);
3964 // Old way - is used by the internal Friendica functions
3965 /// @todo Change all signatur storing functions to the new format
3966 if ($item['signed_text'] && $item['signature'] && $item['signer']) {
3967 $message = self::messageFromSignature($item);
3969 $msg = json_decode($item['signed_text'], true);
3972 if (is_array($msg)) {
3973 foreach ($msg as $field => $data) {
3974 if (!$item["deleted"]) {
3975 if ($field == "diaspora_handle") {
3978 if ($field == "target_type") {
3979 $field = "parent_type";
3983 $message[$field] = $data;
3986 Logger::log("Signature text for item ".$item["guid"]." (".$item["id"].") couldn't be extracted: ".$item['signed_text'], Logger::DEBUG);
3990 $message["parent_author_signature"] = self::signature($owner, $message);
3992 Logger::log("Relayed data ".print_r($message, true), Logger::DEBUG);
3994 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
3998 * @brief Sends a retraction (deletion) of a message, like or comment
4000 * @param array $item The item that will be exported
4001 * @param array $owner the array of the item owner
4002 * @param array $contact Target of the communication
4003 * @param bool $public_batch Is it a public post?
4004 * @param bool $relay Is the retraction transmitted from a relay?
4006 * @return int The result of the transmission
4007 * @throws \Exception
4009 public static function sendRetraction(array $item, array $owner, array $contact, $public_batch = false, $relay = false)
4011 $itemaddr = self::handleFromContact($item["contact-id"], $item["author-id"]);
4013 $msg_type = "retraction";
4015 if ($item['id'] == $item['parent']) {
4016 $target_type = "Post";
4017 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4018 $target_type = "Like";
4020 $target_type = "Comment";
4023 $message = ["author" => $itemaddr,
4024 "target_guid" => $item['guid'],
4025 "target_type" => $target_type];
4027 Logger::log("Got message ".print_r($message, true), Logger::DEBUG);
4029 return self::buildAndTransmit($owner, $contact, $msg_type, $message, $public_batch, $item["guid"]);
4033 * @brief Sends a mail
4035 * @param array $item The item that will be exported
4036 * @param array $owner The owner
4037 * @param array $contact Target of the communication
4039 * @return int The result of the transmission
4040 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
4041 * @throws \ImagickException
4043 public static function sendMail(array $item, array $owner, array $contact)
4045 $myaddr = self::myHandle($owner);
4047 $cnv = DBA::selectFirst('conv', [], ['id' => $item["convid"], 'uid' => $item["uid"]]);
4048 if (!DBA::isResult($cnv)) {
4049 Logger::log("conversation not found.");
4053 $body = BBCode::toMarkdown($item["body"]);
4054 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
4057 "author" => $myaddr,
4058 "guid" => $item["guid"],
4059 "conversation_guid" => $cnv["guid"],
4061 "created_at" => $created,
4064 if ($item["reply"]) {
4069 "author" => $cnv["creator"],
4070 "guid" => $cnv["guid"],
4071 "subject" => $cnv["subject"],
4072 "created_at" => DateTimeFormat::utc($cnv['created'], DateTimeFormat::ATOM),
4073 "participants" => $cnv["recips"],
4077 $type = "conversation";
4080 return self::buildAndTransmit($owner, $contact, $type, $message, false, $item["guid"]);
4084 * @brief Split a name into first name and last name
4086 * @param string $name The name
4088 * @return array The array with "first" and "last"
4090 public static function splitName($name) {
4091 $name = trim($name);
4093 // Is the name longer than 64 characters? Then cut the rest of it.
4094 if (strlen($name) > 64) {
4095 if ((strpos($name, ' ') <= 64) && (strpos($name, ' ') !== false)) {
4096 $name = trim(substr($name, 0, strrpos(substr($name, 0, 65), ' ')));
4098 $name = substr($name, 0, 64);
4102 // Take the first word as first name
4103 $first = ((strpos($name, ' ') ? trim(substr($name, 0, strpos($name, ' '))) : $name));
4104 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4105 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4106 return ['first' => $first, 'last' => $last];
4109 // Take the last word as last name
4110 $first = ((strrpos($name, ' ') ? trim(substr($name, 0, strrpos($name, ' '))) : $name));
4111 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4113 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4114 return ['first' => $first, 'last' => $last];
4117 // Take the first 32 characters if there is no space in the first 32 characters
4118 if ((strpos($name, ' ') > 32) || (strpos($name, ' ') === false)) {
4119 $first = substr($name, 0, 32);
4120 $last = substr($name, 32);
4121 return ['first' => $first, 'last' => $last];
4124 $first = trim(substr($name, 0, strrpos(substr($name, 0, 33), ' ')));
4125 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4127 // Check if the last name is longer than 32 characters
4128 if (strlen($last) > 32) {
4129 if (strpos($last, ' ') <= 32) {
4130 $last = trim(substr($last, 0, strrpos(substr($last, 0, 33), ' ')));
4132 $last = substr($last, 0, 32);
4136 return ['first' => $first, 'last' => $last];
4140 * @brief Create profile data
4142 * @param int $uid The user id
4144 * @return array The profile data
4145 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
4147 private static function createProfileData($uid)
4150 "SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.*, `user`.`prvkey` AS `uprvkey`, `contact`.`addr`
4152 INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
4153 INNER JOIN `contact` ON `profile`.`uid` = `contact`.`uid`
4154 WHERE `user`.`uid` = %d AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
4163 $handle = $profile["addr"];
4165 $split_name = self::splitName($profile['name']);
4166 $first = $split_name['first'];
4167 $last = $split_name['last'];
4169 $large = System::baseUrl().'/photo/custom/300/'.$profile['uid'].'.jpg';
4170 $medium = System::baseUrl().'/photo/custom/100/'.$profile['uid'].'.jpg';
4171 $small = System::baseUrl().'/photo/custom/50/' .$profile['uid'].'.jpg';
4172 $searchable = (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false');
4178 if ($searchable === 'true') {
4181 if ($profile['dob'] && ($profile['dob'] > '0000-00-00')) {
4182 list($year, $month, $day) = sscanf($profile['dob'], '%4d-%2d-%2d');
4186 $dob = DateTimeFormat::utc($year . '-' . $month . '-'. $day, 'Y-m-d');
4189 $about = $profile['about'];
4190 $about = strip_tags(BBCode::convert($about));
4192 $location = Profile::formatLocation($profile);
4194 if ($profile['pub_keywords']) {
4195 $kw = str_replace(',', ' ', $profile['pub_keywords']);
4196 $kw = str_replace(' ', ' ', $kw);
4197 $arr = explode(' ', $kw);
4199 for ($x = 0; $x < 5; $x ++) {
4200 if (!empty($arr[$x])) {
4201 $tags .= '#'. trim($arr[$x]) .' ';
4206 $tags = trim($tags);
4209 return ["author" => $handle,
4210 "first_name" => $first,
4211 "last_name" => $last,
4212 "image_url" => $large,
4213 "image_url_medium" => $medium,
4214 "image_url_small" => $small,
4216 "gender" => $profile['gender'],
4218 "location" => $location,
4219 "searchable" => $searchable,
4221 "tag_string" => $tags];
4225 * @brief Sends profile data
4227 * @param int $uid The user id
4228 * @param bool $recips optional, default false
4230 * @throws \Exception
4232 public static function sendProfile($uid, $recips = false)
4238 $owner = User::getOwnerDataById($uid);
4245 "SELECT `id`,`name`,`network`,`pubkey`,`notify` FROM `contact` WHERE `network` = '%s'
4246 AND `uid` = %d AND `rel` != %d",
4247 DBA::escape(Protocol::DIASPORA),
4249 intval(Contact::SHARING)
4257 $message = self::createProfileData($uid);
4259 // @ToDo Split this into single worker jobs
4260 foreach ($recips as $recip) {
4261 Logger::log("Send updated profile data for user ".$uid." to contact ".$recip["id"], Logger::DEBUG);
4262 self::buildAndTransmit($owner, $recip, "profile", $message);
4267 * @brief Creates the signature for likes that are created on our system
4269 * @param integer $uid The user of that comment
4270 * @param array $item Item array
4272 * @return array Signed content
4273 * @throws \Exception
4275 public static function createLikeSignature($uid, array $item)
4277 $owner = User::getOwnerDataById($uid);
4278 if (empty($owner)) {
4279 Logger::log("No owner post, so not storing signature", Logger::DEBUG);
4283 if (!in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4287 $message = self::constructLike($item, $owner);
4288 if ($message === false) {
4292 $message["author_signature"] = self::signature($owner, $message);
4298 * @brief Creates the signature for Comments that are created on our system
4300 * @param integer $uid The user of that comment
4301 * @param array $item Item array
4303 * @return array Signed content
4304 * @throws \Exception
4306 public static function createCommentSignature($uid, array $item)
4308 $owner = User::getOwnerDataById($uid);
4309 if (empty($owner)) {
4310 Logger::log("No owner post, so not storing signature", Logger::DEBUG);
4314 // This is a workaround for the behaviour of the "insert" function, see mod/item.php
4315 $item['thr-parent'] = $item['parent-uri'];
4317 $parent = Item::selectFirst(['parent-uri'], ['uri' => $item['parent-uri']]);
4318 if (!DBA::isResult($parent)) {
4322 $item['parent-uri'] = $parent['parent-uri'];
4324 $message = self::constructComment($item, $owner);
4325 if ($message === false) {
4329 $message["author_signature"] = self::signature($owner, $message);