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.
10 namespace Friendica\Protocol;
12 use Friendica\Content\Text\BBCode;
13 use Friendica\Core\Cache;
14 use Friendica\Core\Config;
15 use Friendica\Core\L10n;
16 use Friendica\Core\PConfig;
17 use Friendica\Core\System;
18 use Friendica\Core\Worker;
19 use Friendica\Database\DBM;
20 use Friendica\Model\Contact;
21 use Friendica\Model\GContact;
22 use Friendica\Model\Group;
23 use Friendica\Model\Item;
24 use Friendica\Model\Profile;
25 use Friendica\Model\Queue;
26 use Friendica\Model\User;
27 use Friendica\Network\Probe;
28 use Friendica\Util\Crypto;
29 use Friendica\Util\DateTimeFormat;
30 use Friendica\Util\Network;
31 use Friendica\Util\XML;
35 require_once 'include/dba.php';
36 require_once 'include/items.php';
37 require_once 'include/bb2diaspora.php';
40 * @brief This class contain functions to create and send Diaspora XML files
46 * @brief Return a list of relay servers
48 * This is an experimental Diaspora feature.
50 * @return array of relay servers
52 public static function relayList()
54 $serverdata = Config::get("system", "relay_server");
55 if ($serverdata == "") {
61 $servers = explode(",", $serverdata);
63 foreach ($servers as $server) {
64 $server = trim($server);
65 $addr = "relay@".str_replace("http://", "", normalise_link($server));
66 $batch = $server."/receive/public";
69 "SELECT `batch`, `id`, `name`,`network` FROM `contact` WHERE `uid` = 0 AND `batch` = '%s' AND `addr` = '%s' AND `nurl` = '%s' LIMIT 1",
72 dbesc(normalise_link($server))
77 "INSERT INTO `contact` (`uid`, `created`, `name`, `nick`, `addr`, `url`, `nurl`, `batch`, `network`, `rel`, `blocked`, `pending`, `writable`, `name-date`, `uri-date`, `avatar-date`)
78 VALUES (0, '%s', '%s', 'relay', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, '%s', '%s', '%s')",
79 DateTimeFormat::utcNow(),
83 dbesc(normalise_link($server)),
85 dbesc(NETWORK_DIASPORA),
86 intval(CONTACT_IS_FOLLOWER),
87 dbesc(DateTimeFormat::utcNow()),
88 dbesc(DateTimeFormat::utcNow()),
89 dbesc(DateTimeFormat::utcNow())
92 $relais = q("SELECT `batch`, `id`, `name`,`network` FROM `contact` WHERE `uid` = 0 AND `batch` = '%s' LIMIT 1", dbesc($batch));
94 $relay[] = $relais[0];
97 $relay[] = $relais[0];
105 * @brief Return a list of participating contacts for a thread
107 * This is used for the participation feature.
108 * One of the parameters is a contact array.
109 * This is done to avoid duplicates.
111 * @param integer $thread The id of the thread
112 * @param array $contacts The previously fetched contacts
114 * @return array of relay servers
116 public static function participantsForThread($thread, $contacts)
118 $r = dba::p("SELECT `contact`.`batch`, `contact`.`id`, `contact`.`name`, `contact`.`network`,
119 `fcontact`.`batch` AS `fbatch`, `fcontact`.`network` AS `fnetwork` FROM `participation`
120 INNER JOIN `contact` ON `contact`.`id` = `participation`.`cid`
121 INNER JOIN `fcontact` ON `fcontact`.`id` = `participation`.`fid`
122 WHERE `participation`.`iid` = ?", $thread);
124 while ($contact = dba::fetch($r)) {
125 if (!empty($contact['fnetwork'])) {
126 $contact['network'] = $contact['fnetwork'];
128 unset($contact['fnetwork']);
130 if (empty($contact['batch']) && !empty($contact['fbatch'])) {
131 $contact['batch'] = $contact['fbatch'];
133 unset($contact['fbatch']);
136 foreach ($contacts as $entry) {
137 if ($entry['batch'] == $contact['batch']) {
143 $contacts[] = $contact;
152 * @brief repairs a signature that was double encoded
154 * The function is unused at the moment. It was copied from the old implementation.
156 * @param string $signature The signature
157 * @param string $handle The handle of the signature owner
158 * @param integer $level This value is only set inside this function to avoid endless loops
160 * @return string the repaired signature
162 private static function repairSignature($signature, $handle = "", $level = 1)
164 if ($signature == "") {
168 if (base64_encode(base64_decode(base64_decode($signature))) == base64_decode($signature)) {
169 $signature = base64_decode($signature);
170 logger("Repaired double encoded signature from Diaspora/Hubzilla handle ".$handle." - level ".$level, LOGGER_DEBUG);
172 // Do a recursive call to be able to fix even multiple levels
174 $signature = self::repairSignature($signature, $handle, ++$level);
182 * @brief verify the envelope and return the verified data
184 * @param string $envelope The magic envelope
186 * @return string verified data
188 private static function verifyMagicEnvelope($envelope)
190 $basedom = XML::parseString($envelope);
192 if (!is_object($basedom)) {
193 logger("Envelope is no XML file");
197 $children = $basedom->children('http://salmon-protocol.org/ns/magic-env');
199 if (sizeof($children) == 0) {
200 logger("XML has no children");
206 $data = base64url_decode($children->data);
207 $type = $children->data->attributes()->type[0];
209 $encoding = $children->encoding;
211 $alg = $children->alg;
213 $sig = base64url_decode($children->sig);
214 $key_id = $children->sig->attributes()->key_id[0];
216 $handle = base64url_decode($key_id);
219 $b64url_data = base64url_encode($data);
220 $msg = str_replace(["\n", "\r", " ", "\t"], ["", "", "", ""], $b64url_data);
222 $signable_data = $msg.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
224 $key = self::key($handle);
226 $verify = Crypto::rsaVerify($signable_data, $sig, $key);
228 logger('Message did not verify. Discarding.');
236 * @brief encrypts data via AES
238 * @param string $key The AES key
239 * @param string $iv The IV (is used for CBC encoding)
240 * @param string $data The data that is to be encrypted
242 * @return string encrypted data
244 private static function aesEncrypt($key, $iv, $data)
246 return openssl_encrypt($data, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
250 * @brief decrypts data via AES
252 * @param string $key The AES key
253 * @param string $iv The IV (is used for CBC encoding)
254 * @param string $encrypted The encrypted data
256 * @return string decrypted data
258 private static function aesDecrypt($key, $iv, $encrypted)
260 return openssl_decrypt($encrypted, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
264 * @brief: Decodes incoming Diaspora message in the new format
266 * @param array $importer Array of the importer user
267 * @param string $raw raw post message
270 * 'message' -> decoded Diaspora XML message
271 * 'author' -> author diaspora handle
272 * 'key' -> author public key (converted to pkcs#8)
274 public static function decodeRaw($importer, $raw)
276 $data = json_decode($raw);
278 // Is it a private post? Then decrypt the outer Salmon
279 if (is_object($data)) {
280 $encrypted_aes_key_bundle = base64_decode($data->aes_key);
281 $ciphertext = base64_decode($data->encrypted_magic_envelope);
283 $outer_key_bundle = '';
284 @openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $importer['prvkey']);
285 $j_outer_key_bundle = json_decode($outer_key_bundle);
287 if (!is_object($j_outer_key_bundle)) {
288 logger('Outer Salmon did not verify. Discarding.');
289 System::httpExit(400);
292 $outer_iv = base64_decode($j_outer_key_bundle->iv);
293 $outer_key = base64_decode($j_outer_key_bundle->key);
295 $xml = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
300 $basedom = XML::parseString($xml);
302 if (!is_object($basedom)) {
303 logger('Received data does not seem to be an XML. Discarding. '.$xml);
304 System::httpExit(400);
307 $base = $basedom->children(NAMESPACE_SALMON_ME);
309 // Not sure if this cleaning is needed
310 $data = str_replace([" ", "\t", "\r", "\n"], ["", "", "", ""], $base->data);
312 // Build the signed data
313 $type = $base->data[0]->attributes()->type[0];
314 $encoding = $base->encoding;
316 $signed_data = $data.'.'.base64url_encode($type).'.'.base64url_encode($encoding).'.'.base64url_encode($alg);
318 // This is the signature
319 $signature = base64url_decode($base->sig);
321 // Get the senders' public key
322 $key_id = $base->sig[0]->attributes()->key_id[0];
323 $author_addr = base64_decode($key_id);
324 $key = self::key($author_addr);
326 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
328 logger('Message did not verify. Discarding.');
329 System::httpExit(400);
332 return ['message' => (string)base64url_decode($base->data),
333 'author' => unxmlify($author_addr),
334 'key' => (string)$key];
338 * @brief: Decodes incoming Diaspora message in the deprecated format
340 * @param array $importer Array of the importer user
341 * @param string $xml urldecoded Diaspora salmon
344 * 'message' -> decoded Diaspora XML message
345 * 'author' -> author diaspora handle
346 * 'key' -> author public key (converted to pkcs#8)
348 public static function decode($importer, $xml)
351 $basedom = XML::parseString($xml);
353 if (!is_object($basedom)) {
354 logger("XML is not parseable.");
357 $children = $basedom->children('https://joindiaspora.com/protocol');
359 $inner_aes_key = null;
362 if ($children->header) {
364 $author_link = str_replace('acct:', '', $children->header->author_id);
366 // This happens with posts from a relais
368 logger("This is no private post in the old format", LOGGER_DEBUG);
372 $encrypted_header = json_decode(base64_decode($children->encrypted_header));
374 $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
375 $ciphertext = base64_decode($encrypted_header->ciphertext);
377 $outer_key_bundle = '';
378 openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $importer['prvkey']);
380 $j_outer_key_bundle = json_decode($outer_key_bundle);
382 $outer_iv = base64_decode($j_outer_key_bundle->iv);
383 $outer_key = base64_decode($j_outer_key_bundle->key);
385 $decrypted = self::aesDecrypt($outer_key, $outer_iv, $ciphertext);
387 logger('decrypted: '.$decrypted, LOGGER_DEBUG);
388 $idom = XML::parseString($decrypted);
390 $inner_iv = base64_decode($idom->iv);
391 $inner_aes_key = base64_decode($idom->aes_key);
393 $author_link = str_replace('acct:', '', $idom->author_id);
396 $dom = $basedom->children(NAMESPACE_SALMON_ME);
398 // figure out where in the DOM tree our data is hiding
401 if ($dom->provenance->data) {
402 $base = $dom->provenance;
403 } elseif ($dom->env->data) {
405 } elseif ($dom->data) {
410 logger('unable to locate salmon data in xml');
411 System::httpExit(400);
415 // Stash the signature away for now. We have to find their key or it won't be good for anything.
416 $signature = base64url_decode($base->sig);
420 // strip whitespace so our data element will return to one big base64 blob
421 $data = str_replace([" ", "\t", "\r", "\n"], ["", "", "", ""], $base->data);
424 // stash away some other stuff for later
426 $type = $base->data[0]->attributes()->type[0];
427 $keyhash = $base->sig[0]->attributes()->keyhash[0];
428 $encoding = $base->encoding;
432 $signed_data = $data.'.'.base64url_encode($type).'.'.base64url_encode($encoding).'.'.base64url_encode($alg);
436 $data = base64url_decode($data);
440 $inner_decrypted = $data;
442 // Decode the encrypted blob
443 $inner_encrypted = base64_decode($data);
444 $inner_decrypted = self::aesDecrypt($inner_aes_key, $inner_iv, $inner_encrypted);
448 logger('Could not retrieve author URI.');
449 System::httpExit(400);
451 // Once we have the author URI, go to the web and try to find their public key
452 // (first this will look it up locally if it is in the fcontact cache)
453 // This will also convert diaspora public key from pkcs#1 to pkcs#8
455 logger('Fetching key for '.$author_link);
456 $key = self::key($author_link);
459 logger('Could not retrieve author key.');
460 System::httpExit(400);
463 $verify = Crypto::rsaVerify($signed_data, $signature, $key);
466 logger('Message did not verify. Discarding.');
467 System::httpExit(400);
470 logger('Message verified.');
472 return ['message' => (string)$inner_decrypted,
473 'author' => unxmlify($author_link),
474 'key' => (string)$key];
479 * @brief Dispatches public messages and find the fitting receivers
481 * @param array $msg The post that will be dispatched
483 * @return int The message id of the generated message, "true" or "false" if there was an error
485 public static function dispatchPublic($msg)
487 $enabled = intval(Config::get("system", "diaspora_enabled"));
489 logger("diaspora is disabled");
493 if (!($postdata = self::validPosting($msg))) {
494 logger("Invalid posting");
498 $fields = $postdata['fields'];
500 // Is it a an action (comment, like, ...) for our own post?
501 if (isset($fields->parent_guid) && !$postdata["relayed"]) {
502 $guid = notags(unxmlify($fields->parent_guid));
503 $importer = self::importerForGuid($guid);
504 if (is_array($importer)) {
505 logger("delivering to origin: ".$importer["name"]);
506 $message_id = self::dispatch($importer, $msg, $fields);
511 // Process item retractions. This has to be done separated from the other stuff,
512 // since retractions for comments could come even from non followers.
513 if (!empty($fields) && in_array($fields->getName(), ['retraction'])) {
514 $target = notags(unxmlify($fields->target_type));
515 if (in_array($target, ["Comment", "Like", "Post", "Reshare", "StatusMessage"])) {
516 logger('processing retraction for '.$target, LOGGER_DEBUG);
517 $importer = ["uid" => 0, "page-flags" => PAGE_FREELOVE];
518 $message_id = self::dispatch($importer, $msg, $fields);
523 // Now distribute it to the followers
525 "SELECT `user`.* FROM `user` WHERE `user`.`uid` IN
526 (SELECT `contact`.`uid` FROM `contact` WHERE `contact`.`network` = '%s' AND `contact`.`addr` = '%s')
527 AND NOT `account_expired` AND NOT `account_removed`",
528 dbesc(NETWORK_DIASPORA),
529 dbesc($msg["author"])
532 if (DBM::is_result($r)) {
533 foreach ($r as $rr) {
534 logger("delivering to: ".$rr["username"]);
535 self::dispatch($rr, $msg, $fields);
537 } elseif (!Config::get('system', 'relay_subscribe', false)) {
538 logger("Unwanted message from ".$msg["author"]." send by ".$_SERVER["REMOTE_ADDR"]." with ".$_SERVER["HTTP_USER_AGENT"].": ".print_r($msg, true), LOGGER_DEBUG);
540 // Use a dummy importer to import the data for the public copy
541 $importer = ["uid" => 0, "page-flags" => PAGE_FREELOVE];
542 $message_id = self::dispatch($importer, $msg, $fields);
549 * @brief Dispatches the different message types to the different functions
551 * @param array $importer Array of the importer user
552 * @param array $msg The post that will be dispatched
553 * @param object $fields SimpleXML object that contains the message
555 * @return int The message id of the generated message, "true" or "false" if there was an error
557 public static function dispatch($importer, $msg, $fields = null)
559 // The sender is the handle of the contact that sent the message.
560 // This will often be different with relayed messages (for example "like" and "comment")
561 $sender = $msg["author"];
563 // This is only needed for private postings since this is already done for public ones before
564 if (is_null($fields)) {
565 if (!($postdata = self::validPosting($msg))) {
566 logger("Invalid posting");
569 $fields = $postdata['fields'];
572 $type = $fields->getName();
574 logger("Received message type ".$type." from ".$sender." for user ".$importer["uid"], LOGGER_DEBUG);
577 case "account_migration":
578 return self::receiveAccountMigration($importer, $fields);
580 case "account_deletion":
581 return self::receiveAccountDeletion($importer, $fields);
584 return self::receiveComment($importer, $sender, $fields, $msg["message"]);
587 return self::receiveContactRequest($importer, $fields);
590 return self::receiveConversation($importer, $msg, $fields);
593 return self::receiveLike($importer, $sender, $fields);
596 return self::receiveMessage($importer, $fields);
598 case "participation":
599 return self::receiveParticipation($importer, $fields);
601 case "photo": // Not implemented
602 return self::receivePhoto($importer, $fields);
604 case "poll_participation": // Not implemented
605 return self::receivePollParticipation($importer, $fields);
608 return self::receiveProfile($importer, $fields);
611 return self::receiveReshare($importer, $fields, $msg["message"]);
614 return self::receiveRetraction($importer, $sender, $fields);
616 case "status_message":
617 return self::receiveStatusMessage($importer, $fields, $msg["message"]);
620 logger("Unknown message type ".$type);
628 * @brief Checks if a posting is valid and fetches the data fields.
630 * This function does not only check the signature.
631 * It also does the conversion between the old and the new diaspora format.
633 * @param array $msg Array with the XML, the sender handle and the sender signature
635 * @return bool|array If the posting is valid then an array with an SimpleXML object is returned
637 private static function validPosting($msg)
639 $data = XML::parseString($msg["message"]);
641 if (!is_object($data)) {
642 logger("No valid XML ".$msg["message"], LOGGER_DEBUG);
646 // Is this the new or the old version?
647 if ($data->getName() == "XML") {
649 foreach ($data->post->children() as $child) {
657 $type = $element->getName();
660 logger("Got message type ".$type.": ".$msg["message"], LOGGER_DATA);
662 // All retractions are handled identically from now on.
663 // In the new version there will only be "retraction".
664 if (in_array($type, ["signed_retraction", "relayable_retraction"]))
665 $type = "retraction";
667 if ($type == "request") {
671 $fields = new SimpleXMLElement("<".$type."/>");
674 $author_signature = null;
675 $parent_author_signature = null;
677 foreach ($element->children() as $fieldname => $entry) {
679 // Translation for the old XML structure
680 if ($fieldname == "diaspora_handle") {
681 $fieldname = "author";
683 if ($fieldname == "participant_handles") {
684 $fieldname = "participants";
686 if (in_array($type, ["like", "participation"])) {
687 if ($fieldname == "target_type") {
688 $fieldname = "parent_type";
691 if ($fieldname == "sender_handle") {
692 $fieldname = "author";
694 if ($fieldname == "recipient_handle") {
695 $fieldname = "recipient";
697 if ($fieldname == "root_diaspora_id") {
698 $fieldname = "root_author";
700 if ($type == "status_message") {
701 if ($fieldname == "raw_message") {
705 if ($type == "retraction") {
706 if ($fieldname == "post_guid") {
707 $fieldname = "target_guid";
709 if ($fieldname == "type") {
710 $fieldname = "target_type";
715 if (($fieldname == "author_signature") && ($entry != "")) {
716 $author_signature = base64_decode($entry);
717 } elseif (($fieldname == "parent_author_signature") && ($entry != "")) {
718 $parent_author_signature = base64_decode($entry);
719 } elseif (!in_array($fieldname, ["author_signature", "parent_author_signature", "target_author_signature"])) {
720 if ($signed_data != "") {
724 $signed_data .= $entry;
726 if (!in_array($fieldname, ["parent_author_signature", "target_author_signature"])
727 || ($orig_type == "relayable_retraction")
729 XML::copy($entry, $fields, $fieldname);
733 // This is something that shouldn't happen at all.
734 if (in_array($type, ["status_message", "reshare", "profile"])) {
735 if ($msg["author"] != $fields->author) {
736 logger("Message handle is not the same as envelope sender. Quitting this message.");
741 // Only some message types have signatures. So we quit here for the other types.
742 if (!in_array($type, ["comment", "like"])) {
743 return ["fields" => $fields, "relayed" => false];
745 // No author_signature? This is a must, so we quit.
746 if (!isset($author_signature)) {
747 logger("No author signature for type ".$type." - Message: ".$msg["message"], LOGGER_DEBUG);
751 if (isset($parent_author_signature)) {
754 $key = self::key($msg["author"]);
756 if (!Crypto::rsaVerify($signed_data, $parent_author_signature, $key, "sha256")) {
757 logger("No valid parent author signature for parent author ".$msg["author"]. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$parent_author_signature, LOGGER_DEBUG);
764 $key = self::key($fields->author);
766 if (!Crypto::rsaVerify($signed_data, $author_signature, $key, "sha256")) {
767 logger("No valid author signature for author ".$fields->author. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$author_signature, LOGGER_DEBUG);
770 return ["fields" => $fields, "relayed" => $relayed];
775 * @brief Fetches the public key for a given handle
777 * @param string $handle The handle
779 * @return string The public key
781 private static function key($handle)
783 $handle = strval($handle);
785 logger("Fetching diaspora key for: ".$handle);
787 $r = self::personByHandle($handle);
796 * @brief Fetches data for a given handle
798 * @param string $handle The handle
800 * @return array the queried data
802 public static function personByHandle($handle)
806 $person = dba::selectFirst('fcontact', [], ['network' => NETWORK_DIASPORA, 'addr' => $handle]);
807 if (DBM::is_result($person)) {
808 logger("In cache " . print_r($person, true), LOGGER_DEBUG);
810 // update record occasionally so it doesn't get stale
811 $d = strtotime($person["updated"]." +00:00");
812 if ($d < strtotime("now - 14 days")) {
816 if ($person["guid"] == "") {
821 if (!DBM::is_result($person) || $update) {
822 logger("create or refresh", LOGGER_DEBUG);
823 $r = Probe::uri($handle, NETWORK_DIASPORA);
825 // Note that Friendica contacts will return a "Diaspora person"
826 // if Diaspora connectivity is enabled on their server
827 if ($r && ($r["network"] === NETWORK_DIASPORA)) {
828 self::addFContact($r, $update);
837 * @brief Updates the fcontact table
839 * @param array $arr The fcontact data
840 * @param bool $update Update or insert?
842 * @return string The id of the fcontact entry
844 private static function addFContact($arr, $update = false)
848 "UPDATE `fcontact` SET
862 WHERE `url` = '%s' AND `network` = '%s'",
864 dbesc($arr["photo"]),
865 dbesc($arr["request"]),
867 dbesc(strtolower($arr["addr"])),
869 dbesc($arr["batch"]),
870 dbesc($arr["notify"]),
872 dbesc($arr["confirm"]),
873 dbesc($arr["alias"]),
874 dbesc($arr["pubkey"]),
875 dbesc(DateTimeFormat::utcNow()),
877 dbesc($arr["network"])
881 "INSERT INTO `fcontact` (`url`,`name`,`photo`,`request`,`nick`,`addr`, `guid`,
882 `batch`, `notify`,`poll`,`confirm`,`network`,`alias`,`pubkey`,`updated`)
883 VALUES ('%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s')",
886 dbesc($arr["photo"]),
887 dbesc($arr["request"]),
891 dbesc($arr["batch"]),
892 dbesc($arr["notify"]),
894 dbesc($arr["confirm"]),
895 dbesc($arr["network"]),
896 dbesc($arr["alias"]),
897 dbesc($arr["pubkey"]),
898 dbesc(DateTimeFormat::utcNow())
906 * @brief get a handle (user@domain.tld) from a given contact id or gcontact id
908 * @param int $contact_id The id in the contact table
909 * @param int $gcontact_id The id in the gcontact table
911 * @return string the handle
913 public static function handleFromContact($contact_id, $gcontact_id = 0)
917 logger("contact id is ".$contact_id." - gcontact id is ".$gcontact_id, LOGGER_DEBUG);
919 if ($gcontact_id != 0) {
921 "SELECT `addr` FROM `gcontact` WHERE `id` = %d AND `addr` != ''",
925 if (DBM::is_result($r)) {
926 return strtolower($r[0]["addr"]);
931 "SELECT `network`, `addr`, `self`, `url`, `nick` FROM `contact` WHERE `id` = %d",
935 if (DBM::is_result($r)) {
938 logger("contact 'self' = ".$contact['self']." 'url' = ".$contact['url'], LOGGER_DEBUG);
940 if ($contact['addr'] != "") {
941 $handle = $contact['addr'];
943 $baseurl_start = strpos($contact['url'], '://') + 3;
944 // allows installations in a subdirectory--not sure how Diaspora will handle
945 $baseurl_length = strpos($contact['url'], '/profile') - $baseurl_start;
946 $baseurl = substr($contact['url'], $baseurl_start, $baseurl_length);
947 $handle = $contact['nick'].'@'.$baseurl;
951 return strtolower($handle);
955 * @brief get a url (scheme://domain.tld/u/user) from a given Diaspora*
958 * @param mixed $fcontact_guid Hexadecimal string guid
960 * @return string the contact url or null
962 public static function urlFromContactGuid($fcontact_guid)
964 logger("fcontact guid is ".$fcontact_guid, LOGGER_DEBUG);
967 "SELECT `url` FROM `fcontact` WHERE `url` != '' AND `network` = '%s' AND `guid` = '%s'",
968 dbesc(NETWORK_DIASPORA),
969 dbesc($fcontact_guid)
972 if (DBM::is_result($r)) {
980 * @brief Get a contact id for a given handle
982 * @todo Move to Friendica\Model\Contact
984 * @param int $uid The user id
985 * @param string $handle The handle in the format user@domain.tld
987 * @return int Contact id
989 private static function contactByHandle($uid, $handle)
991 // First do a direct search on the contact table
993 "SELECT * FROM `contact` WHERE `uid` = %d AND `addr` = '%s' LIMIT 1",
998 if (DBM::is_result($r)) {
1002 * We haven't found it?
1003 * We use another function for it that will possibly create a contact entry.
1005 $cid = Contact::getIdForURL($handle, $uid);
1008 /// @TODO Contact retrieval should be encapsulated into an "entity" class like `Contact`
1009 $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1", intval($cid));
1011 if (DBM::is_result($r)) {
1017 $handle_parts = explode("@", $handle);
1018 $nurl_sql = "%%://".$handle_parts[1]."%%/profile/".$handle_parts[0];
1020 "SELECT * FROM `contact` WHERE `network` = '%s' AND `uid` = %d AND `nurl` LIKE '%s' LIMIT 1",
1021 dbesc(NETWORK_DFRN),
1025 if (DBM::is_result($r)) {
1029 logger("Haven't found contact for user ".$uid." and handle ".$handle, LOGGER_DEBUG);
1034 * @brief Check if posting is allowed for this contact
1036 * @param array $importer Array of the importer user
1037 * @param array $contact The contact that is checked
1038 * @param bool $is_comment Is the check for a comment?
1040 * @return bool is the contact allowed to post?
1042 private static function postAllow($importer, $contact, $is_comment = false)
1045 * Perhaps we were already sharing with this person. Now they're sharing with us.
1046 * That makes us friends.
1047 * Normally this should have handled by getting a request - but this could get lost
1049 // It is deactivated by now, due to side effects. See issue https://github.com/friendica/friendica/pull/4033
1050 // It is not removed by now. Possibly the code is needed?
1051 //if (!$is_comment && $contact["rel"] == CONTACT_IS_FOLLOWER && in_array($importer["page-flags"], array(PAGE_FREELOVE))) {
1054 // array('rel' => CONTACT_IS_FRIEND, 'writable' => true),
1055 // array('id' => $contact["id"], 'uid' => $contact["uid"])
1058 // $contact["rel"] = CONTACT_IS_FRIEND;
1059 // logger("defining user ".$contact["nick"]." as friend");
1062 // We don't seem to like that person
1063 if ($contact["blocked"] || $contact["readonly"]) {
1064 // Maybe blocked, don't accept.
1066 // We are following this person?
1067 } elseif (($contact["rel"] == CONTACT_IS_SHARING) || ($contact["rel"] == CONTACT_IS_FRIEND)) {
1068 // Yes, then it is fine.
1070 // Is it a post to a community?
1071 } elseif (($contact["rel"] == CONTACT_IS_FOLLOWER) && ($importer["page-flags"] == PAGE_COMMUNITY)) {
1074 // Is the message a global user or a comment?
1075 } elseif (($importer["uid"] == 0) || $is_comment) {
1076 // Messages for the global users and comments are always accepted
1084 * @brief Fetches the contact id for a handle and checks if posting is allowed
1086 * @param array $importer Array of the importer user
1087 * @param string $handle The checked handle in the format user@domain.tld
1088 * @param bool $is_comment Is the check for a comment?
1090 * @return array The contact data
1092 private static function allowedContactByHandle($importer, $handle, $is_comment = false)
1094 $contact = self::contactByHandle($importer["uid"], $handle);
1096 logger("A Contact for handle ".$handle." and user ".$importer["uid"]." was not found");
1097 // If a contact isn't found, we accept it anyway if it is a comment
1105 if (!self::postAllow($importer, $contact, $is_comment)) {
1106 logger("The handle: ".$handle." is not allowed to post to user ".$importer["uid"]);
1113 * @brief Does the message already exists on the system?
1115 * @param int $uid The user id
1116 * @param string $guid The guid of the message
1118 * @return int|bool message id if the message already was stored into the system - or false.
1120 private static function messageExists($uid, $guid)
1123 "SELECT `id` FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1128 if (DBM::is_result($r)) {
1129 logger("message ".$guid." already exists for user ".$uid);
1137 * @brief Checks for links to posts in a message
1139 * @param array $item The item array
1142 private static function fetchGuid($item)
1144 $expression = "=diaspora://.*?/post/([0-9A-Za-z\-_@.:]{15,254}[0-9A-Za-z])=ism";
1145 preg_replace_callback(
1147 function ($match) use ($item) {
1148 self::fetchGuidSub($match, $item);
1153 preg_replace_callback(
1154 "&\[url=/posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
1155 function ($match) use ($item) {
1156 self::fetchGuidSub($match, $item);
1163 * @brief Checks for relative /people/* links in an item body to match local
1164 * contacts or prepends the remote host taken from the author link.
1166 * @param string $body The item body to replace links from
1167 * @param string $author_link The author link for missing local contact fallback
1169 * @return string the replaced string
1171 public static function replacePeopleGuid($body, $author_link)
1173 $return = preg_replace_callback(
1174 "&\[url=/people/([^\[\]]*)\](.*)\[\/url\]&Usi",
1175 function ($match) use ($author_link) {
1177 // 0 => '[url=/people/0123456789abcdef]Foo Bar[/url]'
1178 // 1 => '0123456789abcdef'
1180 $handle = self::urlFromContactGuid($match[1]);
1183 $return = '@[url='.$handle.']'.$match[2].'[/url]';
1185 // No local match, restoring absolute remote URL from author scheme and host
1186 $author_url = parse_url($author_link);
1187 $return = '[url='.$author_url['scheme'].'://'.$author_url['host'].'/people/'.$match[1].']'.$match[2].'[/url]';
1199 * @brief sub function of "fetchGuid" which checks for links in messages
1201 * @param array $match array containing a link that has to be checked for a message link
1202 * @param array $item The item array
1205 private static function fetchGuidSub($match, $item)
1207 if (!self::storeByGuid($match[1], $item["author-link"])) {
1208 self::storeByGuid($match[1], $item["owner-link"]);
1213 * @brief Fetches an item with a given guid from a given server
1215 * @param string $guid the message guid
1216 * @param string $server The server address
1217 * @param int $uid The user id of the user
1219 * @return int the message id of the stored message or false
1221 private static function storeByGuid($guid, $server, $uid = 0)
1223 $serverparts = parse_url($server);
1224 $server = $serverparts["scheme"]."://".$serverparts["host"];
1226 logger("Trying to fetch item ".$guid." from ".$server, LOGGER_DEBUG);
1228 $msg = self::message($guid, $server);
1234 logger("Successfully fetched item ".$guid." from ".$server, LOGGER_DEBUG);
1236 // Now call the dispatcher
1237 return self::dispatchPublic($msg);
1241 * @brief Fetches a message from a server
1243 * @param string $guid message guid
1244 * @param string $server The url of the server
1245 * @param int $level Endless loop prevention
1248 * 'message' => The message XML
1249 * 'author' => The author handle
1250 * 'key' => The public key of the author
1252 private static function message($guid, $server, $level = 0)
1258 // This will work for new Diaspora servers and Friendica servers from 3.5
1259 $source_url = $server."/fetch/post/".urlencode($guid);
1261 logger("Fetch post from ".$source_url, LOGGER_DEBUG);
1263 $envelope = Network::fetchUrl($source_url);
1265 logger("Envelope was fetched.", LOGGER_DEBUG);
1266 $x = self::verifyMagicEnvelope($envelope);
1268 logger("Envelope could not be verified.", LOGGER_DEBUG);
1270 logger("Envelope was verified.", LOGGER_DEBUG);
1276 // This will work for older Diaspora and Friendica servers
1278 $source_url = $server."/p/".urlencode($guid).".xml";
1279 logger("Fetch post from ".$source_url, LOGGER_DEBUG);
1281 $x = Network::fetchUrl($source_url);
1287 $source_xml = XML::parseString($x);
1289 if (!is_object($source_xml)) {
1293 if ($source_xml->post->reshare) {
1294 // Reshare of a reshare - old Diaspora version
1295 logger("Message is a reshare", LOGGER_DEBUG);
1296 return self::message($source_xml->post->reshare->root_guid, $server, ++$level);
1297 } elseif ($source_xml->getName() == "reshare") {
1298 // Reshare of a reshare - new Diaspora version
1299 logger("Message is a new reshare", LOGGER_DEBUG);
1300 return self::message($source_xml->root_guid, $server, ++$level);
1305 // Fetch the author - for the old and the new Diaspora version
1306 if ($source_xml->post->status_message->diaspora_handle) {
1307 $author = (string)$source_xml->post->status_message->diaspora_handle;
1308 } elseif ($source_xml->author && ($source_xml->getName() == "status_message")) {
1309 $author = (string)$source_xml->author;
1312 // If this isn't a "status_message" then quit
1314 logger("Message doesn't seem to be a status message", LOGGER_DEBUG);
1318 $msg = ["message" => $x, "author" => $author];
1320 $msg["key"] = self::key($msg["author"]);
1326 * @brief Fetches the item record of a given guid
1328 * @param int $uid The user id
1329 * @param string $guid message guid
1330 * @param string $author The handle of the item
1331 * @param array $contact The contact of the item owner
1333 * @return array the item record
1335 private static function parentItem($uid, $guid, $author, $contact)
1338 "SELECT `id`, `parent`, `body`, `wall`, `uri`, `guid`, `private`, `origin`,
1339 `author-name`, `author-link`, `author-avatar`,
1340 `owner-name`, `owner-link`, `owner-avatar`
1341 FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1347 $result = self::storeByGuid($guid, $contact["url"], $uid);
1350 $person = self::personByHandle($author);
1351 $result = self::storeByGuid($guid, $person["url"], $uid);
1355 logger("Fetched missing item ".$guid." - result: ".$result, LOGGER_DEBUG);
1358 "SELECT `id`, `body`, `wall`, `uri`, `private`, `origin`,
1359 `author-name`, `author-link`, `author-avatar`,
1360 `owner-name`, `owner-link`, `owner-avatar`
1361 FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1369 logger("parent item not found: parent: ".$guid." - user: ".$uid);
1372 logger("parent item found: parent: ".$guid." - user: ".$uid);
1378 * @brief returns contact details
1380 * @param array $def_contact The default contact if the person isn't found
1381 * @param array $person The record of the person
1382 * @param int $uid The user id
1385 * 'cid' => contact id
1386 * 'network' => network type
1388 private static function authorContactByUrl($def_contact, $person, $uid)
1390 $condition = ['nurl' => normalise_link($person["url"]), 'uid' => $uid];
1391 $contact = dba::selectFirst('contact', ['id', 'network'], $condition);
1392 if (DBM::is_result($contact)) {
1393 $cid = $contact["id"];
1394 $network = $contact["network"];
1396 $cid = $def_contact["id"];
1397 $network = NETWORK_DIASPORA;
1400 return ["cid" => $cid, "network" => $network];
1404 * @brief Is the profile a hubzilla profile?
1406 * @param string $url The profile link
1408 * @return bool is it a hubzilla server?
1410 public static function isRedmatrix($url)
1412 return(strstr($url, "/channel/"));
1416 * @brief Generate a post link with a given handle and message guid
1418 * @param string $addr The user handle
1419 * @param string $guid message guid
1420 * @param string $parent_guid optional parent guid
1422 * @return string the post link
1424 private static function plink($addr, $guid, $parent_guid = '')
1426 $r = q("SELECT `url`, `nick`, `network` FROM `fcontact` WHERE `addr`='%s' LIMIT 1", dbesc($addr));
1429 if (!DBM::is_result($r)) {
1430 if ($parent_guid != '') {
1431 return "https://".substr($addr, strpos($addr, "@") + 1) . "/posts/" . $parent_guid . "#" . $guid;
1433 return "https://".substr($addr, strpos($addr, "@") + 1) . "/posts/" . $guid;
1437 // Friendica contacts are often detected as Diaspora contacts in the "fcontact" table
1438 // So we try another way as well.
1439 $s = q("SELECT `network` FROM `gcontact` WHERE `nurl`='%s' LIMIT 1", dbesc(normalise_link($r[0]["url"])));
1440 if (DBM::is_result($s)) {
1441 $r[0]["network"] = $s[0]["network"];
1444 if ($r[0]["network"] == NETWORK_DFRN) {
1445 return str_replace("/profile/".$r[0]["nick"]."/", "/display/".$guid, $r[0]["url"]."/");
1448 if (self::isRedmatrix($r[0]["url"])) {
1449 return $r[0]["url"]."/?f=&mid=".$guid;
1452 if ($parent_guid != '') {
1453 return "https://".substr($addr, strpos($addr, "@") + 1) . "/posts/" . $parent_guid . "#" . $guid;
1455 return "https://".substr($addr, strpos($addr, "@") + 1) . "/posts/" . $guid;
1460 * @brief Receives account migration
1462 * @param array $importer Array of the importer user
1463 * @param object $data The message object
1465 * @return bool Success
1467 private static function receiveAccountMigration($importer, $data)
1469 $old_handle = notags(unxmlify($data->author));
1470 $new_handle = notags(unxmlify($data->profile->author));
1471 $signature = notags(unxmlify($data->signature));
1473 $contact = self::contactByHandle($importer["uid"], $old_handle);
1475 logger("cannot find contact for sender: ".$old_handle." and user ".$importer["uid"]);
1479 logger("Got migration for ".$old_handle.", to ".$new_handle." with user ".$importer["uid"]);
1482 $signed_text = 'AccountMigration:'.$old_handle.':'.$new_handle;
1483 $key = self::key($old_handle);
1484 if (!Crypto::rsaVerify($signed_text, $signature, $key, "sha256")) {
1485 logger('No valid signature for migration.');
1489 // Update the profile
1490 self::receiveProfile($importer, $data->profile);
1492 // change the technical stuff in contact and gcontact
1493 $data = Probe::uri($new_handle);
1494 if ($data['network'] == NETWORK_PHANTOM) {
1495 logger('Account for '.$new_handle." couldn't be probed.");
1499 $fields = ['url' => $data['url'], 'nurl' => normalise_link($data['url']),
1500 'name' => $data['name'], 'nick' => $data['nick'],
1501 'addr' => $data['addr'], 'batch' => $data['batch'],
1502 'notify' => $data['notify'], 'poll' => $data['poll'],
1503 'network' => $data['network']];
1505 dba::update('contact', $fields, ['addr' => $old_handle]);
1507 $fields = ['url' => $data['url'], 'nurl' => normalise_link($data['url']),
1508 'name' => $data['name'], 'nick' => $data['nick'],
1509 'addr' => $data['addr'], 'connect' => $data['addr'],
1510 'notify' => $data['notify'], 'photo' => $data['photo'],
1511 'server_url' => $data['baseurl'], 'network' => $data['network']];
1513 dba::update('gcontact', $fields, ['addr' => $old_handle]);
1515 logger('Contacts are updated.');
1518 /// @todo This is an extreme performance killer
1520 'owner-link' => [$contact["url"], $data["url"]],
1521 'author-link' => [$contact["url"], $data["url"]],
1523 foreach ($fields as $n => $f) {
1525 "SELECT `id` FROM `item` WHERE `%s` = '%s' AND `uid` = %d LIMIT 1",
1528 intval($importer["uid"])
1531 if (DBM::is_result($r)) {
1533 "UPDATE `item` SET `%s` = '%s' WHERE `%s` = '%s' AND `uid` = %d",
1538 intval($importer["uid"])
1547 logger('Items are updated.');
1553 * @brief Processes an account deletion
1555 * @param array $importer Array of the importer user
1556 * @param object $data The message object
1558 * @return bool Success
1560 private static function receiveAccountDeletion($importer, $data)
1562 /// @todo Account deletion should remove the contact from the global contacts as well
1564 $author = notags(unxmlify($data->author));
1566 $contact = self::contactByHandle($importer["uid"], $author);
1568 logger("cannot find contact for author: ".$author);
1572 // We now remove the contact
1573 Contact::remove($contact["id"]);
1578 * @brief Fetch the uri from our database if we already have this item (maybe from ourselves)
1580 * @param string $author Author handle
1581 * @param string $guid Message guid
1582 * @param boolean $onlyfound Only return uri when found in the database
1584 * @return string The constructed uri or the one from our database
1586 private static function getUriFromGuid($author, $guid, $onlyfound = false)
1588 $r = q("SELECT `uri` FROM `item` WHERE `guid` = '%s' LIMIT 1", dbesc($guid));
1589 if (DBM::is_result($r)) {
1590 return $r[0]["uri"];
1591 } elseif (!$onlyfound) {
1592 return $author.":".$guid;
1599 * @brief Fetch the guid from our database with a given uri
1601 * @param string $uri Message uri
1602 * @param string $uid Author handle
1604 * @return string The post guid
1606 private static function getGuidFromUri($uri, $uid)
1608 $r = q("SELECT `guid` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1", dbesc($uri), intval($uid));
1609 if (DBM::is_result($r)) {
1610 return $r[0]["guid"];
1617 * @brief Find the best importer for a comment, like, ...
1619 * @param string $guid The guid of the item
1621 * @return array|boolean the origin owner of that post - or false
1623 private static function importerForGuid($guid)
1625 $item = dba::fetch_first("SELECT `uid` FROM `item` WHERE `origin` AND `guid` = ? LIMIT 1", $guid);
1627 if (DBM::is_result($item)) {
1628 logger("Found user ".$item['uid']." as owner of item ".$guid, LOGGER_DEBUG);
1629 $contact = dba::fetch_first("SELECT * FROM `contact` WHERE `self` AND `uid` = ?", $item['uid']);
1630 if (DBM::is_result($contact)) {
1638 * @brief Processes an incoming comment
1640 * @param array $importer Array of the importer user
1641 * @param string $sender The sender of the message
1642 * @param object $data The message object
1643 * @param string $xml The original XML of the message
1645 * @return int The message id of the generated comment or "false" if there was an error
1647 private static function receiveComment($importer, $sender, $data, $xml)
1649 $author = notags(unxmlify($data->author));
1650 $guid = notags(unxmlify($data->guid));
1651 $parent_guid = notags(unxmlify($data->parent_guid));
1652 $text = unxmlify($data->text);
1654 if (isset($data->created_at)) {
1655 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
1657 $created_at = DateTimeFormat::utcNow();
1660 if (isset($data->thread_parent_guid)) {
1661 $thread_parent_guid = notags(unxmlify($data->thread_parent_guid));
1662 $thr_uri = self::getUriFromGuid("", $thread_parent_guid, true);
1667 $contact = self::allowedContactByHandle($importer, $sender, true);
1672 $message_id = self::messageExists($importer["uid"], $guid);
1677 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
1678 if (!$parent_item) {
1682 $person = self::personByHandle($author);
1683 if (!is_array($person)) {
1684 logger("unable to find author details");
1688 // Fetch the contact id - if we know this contact
1689 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
1693 $datarray["uid"] = $importer["uid"];
1694 $datarray["contact-id"] = $author_contact["cid"];
1695 $datarray["network"] = $author_contact["network"];
1697 $datarray["author-name"] = $person["name"];
1698 $datarray["author-link"] = $person["url"];
1699 $datarray["author-avatar"] = ((x($person, "thumb")) ? $person["thumb"] : $person["photo"]);
1701 $datarray["owner-name"] = $contact["name"];
1702 $datarray["owner-link"] = $contact["url"];
1703 $datarray["owner-avatar"] = ((x($contact, "thumb")) ? $contact["thumb"] : $contact["photo"]);
1705 $datarray["guid"] = $guid;
1706 $datarray["uri"] = self::getUriFromGuid($author, $guid);
1708 $datarray["type"] = "remote-comment";
1709 $datarray["verb"] = ACTIVITY_POST;
1710 $datarray["gravity"] = GRAVITY_COMMENT;
1712 if ($thr_uri != "") {
1713 $datarray["parent-uri"] = $thr_uri;
1715 $datarray["parent-uri"] = $parent_item["uri"];
1718 $datarray["object-type"] = ACTIVITY_OBJ_COMMENT;
1720 $datarray["protocol"] = PROTOCOL_DIASPORA;
1721 $datarray["source"] = $xml;
1723 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
1725 $datarray["plink"] = self::plink($author, $guid, $parent_item['guid']);
1727 $body = diaspora2bb($text);
1729 $datarray["body"] = self::replacePeopleGuid($body, $person["url"]);
1731 self::fetchGuid($datarray);
1733 $message_id = Item::insert($datarray);
1735 if ($message_id <= 0) {
1740 logger("Stored comment ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
1743 // If we are the origin of the parent we store the original data and notify our followers
1744 if ($message_id && $parent_item["origin"]) {
1745 // Formerly we stored the signed text, the signature and the author in different fields.
1746 // We now store the raw data so that we are more flexible.
1747 dba::insert('sign', ['iid' => $message_id, 'signed_text' => json_encode($data)]);
1750 Worker::add(PRIORITY_HIGH, "Notifier", "comment-import", $message_id);
1757 * @brief processes and stores private messages
1759 * @param array $importer Array of the importer user
1760 * @param array $contact The contact of the message
1761 * @param object $data The message object
1762 * @param array $msg Array of the processed message, author handle and key
1763 * @param object $mesg The private message
1764 * @param array $conversation The conversation record to which this message belongs
1766 * @return bool "true" if it was successful
1768 private static function receiveConversationMessage($importer, $contact, $data, $msg, $mesg, $conversation)
1770 $author = notags(unxmlify($data->author));
1771 $guid = notags(unxmlify($data->guid));
1772 $subject = notags(unxmlify($data->subject));
1774 // "diaspora_handle" is the element name from the old version
1775 // "author" is the element name from the new version
1776 if ($mesg->author) {
1777 $msg_author = notags(unxmlify($mesg->author));
1778 } elseif ($mesg->diaspora_handle) {
1779 $msg_author = notags(unxmlify($mesg->diaspora_handle));
1784 $msg_guid = notags(unxmlify($mesg->guid));
1785 $msg_conversation_guid = notags(unxmlify($mesg->conversation_guid));
1786 $msg_text = unxmlify($mesg->text);
1787 $msg_created_at = DateTimeFormat::utc(notags(unxmlify($mesg->created_at)));
1789 if ($msg_conversation_guid != $guid) {
1790 logger("message conversation guid does not belong to the current conversation.");
1794 $body = diaspora2bb($msg_text);
1795 $message_uri = $msg_author.":".$msg_guid;
1797 $person = self::personByHandle($msg_author);
1802 "SELECT `id` FROM `mail` WHERE `guid` = '%s' AND `uid` = %d LIMIT 1",
1804 intval($importer["uid"])
1806 if (DBM::is_result($r)) {
1807 logger("duplicate message already delivered.", LOGGER_DEBUG);
1812 "INSERT INTO `mail` (`uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`)
1813 VALUES (%d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
1814 intval($importer["uid"]),
1816 intval($conversation["id"]),
1817 dbesc($person["name"]),
1818 dbesc($person["photo"]),
1819 dbesc($person["url"]),
1820 intval($contact["id"]),
1825 dbesc($message_uri),
1826 dbesc($author.":".$guid),
1827 dbesc($msg_created_at)
1832 dba::update('conv', ['updated' => DateTimeFormat::utcNow()], ['id' => $conversation["id"]]);
1836 "type" => NOTIFY_MAIL,
1837 "notify_flags" => $importer["notify-flags"],
1838 "language" => $importer["language"],
1839 "to_name" => $importer["username"],
1840 "to_email" => $importer["email"],
1841 "uid" =>$importer["uid"],
1842 "item" => ["subject" => $subject, "body" => $body],
1843 "source_name" => $person["name"],
1844 "source_link" => $person["url"],
1845 "source_photo" => $person["thumb"],
1846 "verb" => ACTIVITY_POST,
1853 * @brief Processes new private messages (answers to private messages are processed elsewhere)
1855 * @param array $importer Array of the importer user
1856 * @param array $msg Array of the processed message, author handle and key
1857 * @param object $data The message object
1859 * @return bool Success
1861 private static function receiveConversation($importer, $msg, $data)
1863 $author = notags(unxmlify($data->author));
1864 $guid = notags(unxmlify($data->guid));
1865 $subject = notags(unxmlify($data->subject));
1866 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
1867 $participants = notags(unxmlify($data->participants));
1869 $messages = $data->message;
1871 if (!count($messages)) {
1872 logger("empty conversation");
1876 $contact = self::allowedContactByHandle($importer, $msg["author"], true);
1881 $conversation = null;
1884 "SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1885 intval($importer["uid"]),
1889 $conversation = $c[0];
1892 "INSERT INTO `conv` (`uid`, `guid`, `creator`, `created`, `updated`, `subject`, `recips`)
1893 VALUES (%d, '%s', '%s', '%s', '%s', '%s', '%s')",
1894 intval($importer["uid"]),
1898 dbesc(DateTimeFormat::utcNow()),
1900 dbesc($participants)
1904 "SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1905 intval($importer["uid"]),
1911 $conversation = $c[0];
1914 if (!$conversation) {
1915 logger("unable to create conversation.");
1919 foreach ($messages as $mesg) {
1920 self::receiveConversationMessage($importer, $contact, $data, $msg, $mesg, $conversation);
1927 * @brief Creates the body for a "like" message
1929 * @param array $contact The contact that send us the "like"
1930 * @param array $parent_item The item array of the parent item
1931 * @param string $guid message guid
1933 * @return string the body
1935 private static function constructLikeBody($contact, $parent_item, $guid)
1937 $bodyverb = L10n::t('%1$s likes %2$s\'s %3$s');
1939 $ulink = "[url=".$contact["url"]."]".$contact["name"]."[/url]";
1940 $alink = "[url=".$parent_item["author-link"]."]".$parent_item["author-name"]."[/url]";
1941 $plink = "[url=".System::baseUrl()."/display/".urlencode($guid)."]".L10n::t("status")."[/url]";
1943 return sprintf($bodyverb, $ulink, $alink, $plink);
1947 * @brief Creates a XML object for a "like"
1949 * @param array $importer Array of the importer user
1950 * @param array $parent_item The item array of the parent item
1952 * @return string The XML
1954 private static function constructLikeObject($importer, $parent_item)
1956 $objtype = ACTIVITY_OBJ_NOTE;
1957 $link = '<link rel="alternate" type="text/html" href="'.System::baseUrl()."/display/".$importer["nickname"]."/".$parent_item["id"].'" />';
1958 $parent_body = $parent_item["body"];
1960 $xmldata = ["object" => ["type" => $objtype,
1962 "id" => $parent_item["uri"],
1965 "content" => $parent_body]];
1967 return XML::fromArray($xmldata, $xml, true);
1971 * @brief Processes "like" messages
1973 * @param array $importer Array of the importer user
1974 * @param string $sender The sender of the message
1975 * @param object $data The message object
1977 * @return int The message id of the generated like or "false" if there was an error
1979 private static function receiveLike($importer, $sender, $data)
1981 $author = notags(unxmlify($data->author));
1982 $guid = notags(unxmlify($data->guid));
1983 $parent_guid = notags(unxmlify($data->parent_guid));
1984 $parent_type = notags(unxmlify($data->parent_type));
1985 $positive = notags(unxmlify($data->positive));
1987 // likes on comments aren't supported by Diaspora - only on posts
1988 // But maybe this will be supported in the future, so we will accept it.
1989 if (!in_array($parent_type, ["Post", "Comment"])) {
1993 $contact = self::allowedContactByHandle($importer, $sender, true);
1998 $message_id = self::messageExists($importer["uid"], $guid);
2003 $parent_item = self::parentItem($importer["uid"], $parent_guid, $author, $contact);
2004 if (!$parent_item) {
2008 $person = self::personByHandle($author);
2009 if (!is_array($person)) {
2010 logger("unable to find author details");
2014 // Fetch the contact id - if we know this contact
2015 $author_contact = self::authorContactByUrl($contact, $person, $importer["uid"]);
2017 // "positive" = "false" would be a Dislike - wich isn't currently supported by Diaspora
2018 // We would accept this anyhow.
2019 if ($positive == "true") {
2020 $verb = ACTIVITY_LIKE;
2022 $verb = ACTIVITY_DISLIKE;
2027 $datarray["protocol"] = PROTOCOL_DIASPORA;
2029 $datarray["uid"] = $importer["uid"];
2030 $datarray["contact-id"] = $author_contact["cid"];
2031 $datarray["network"] = $author_contact["network"];
2033 $datarray["author-name"] = $person["name"];
2034 $datarray["author-link"] = $person["url"];
2035 $datarray["author-avatar"] = ((x($person, "thumb")) ? $person["thumb"] : $person["photo"]);
2037 $datarray["owner-name"] = $contact["name"];
2038 $datarray["owner-link"] = $contact["url"];
2039 $datarray["owner-avatar"] = ((x($contact, "thumb")) ? $contact["thumb"] : $contact["photo"]);
2041 $datarray["guid"] = $guid;
2042 $datarray["uri"] = self::getUriFromGuid($author, $guid);
2044 $datarray["type"] = "activity";
2045 $datarray["verb"] = $verb;
2046 $datarray["gravity"] = GRAVITY_LIKE;
2047 $datarray["parent-uri"] = $parent_item["uri"];
2049 $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
2050 $datarray["object"] = self::constructLikeObject($importer, $parent_item);
2052 $datarray["body"] = self::constructLikeBody($contact, $parent_item, $guid);
2054 $message_id = Item::insert($datarray);
2056 if ($message_id <= 0) {
2061 logger("Stored like ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
2064 // like on comments have the comment as parent. So we need to fetch the toplevel parent
2065 if ($parent_item["id"] != $parent_item["parent"]) {
2066 $toplevel = dba::selectFirst('item', ['origin'], ['id' => $parent_item["parent"]]);
2067 $origin = $toplevel["origin"];
2069 $origin = $parent_item["origin"];
2072 // If we are the origin of the parent we store the original data and notify our followers
2073 if ($message_id && $origin) {
2074 // Formerly we stored the signed text, the signature and the author in different fields.
2075 // We now store the raw data so that we are more flexible.
2076 dba::insert('sign', ['iid' => $message_id, 'signed_text' => json_encode($data)]);
2079 Worker::add(PRIORITY_HIGH, "Notifier", "comment-import", $message_id);
2086 * @brief Processes private messages
2088 * @param array $importer Array of the importer user
2089 * @param object $data The message object
2091 * @return bool Success?
2093 private static function receiveMessage($importer, $data)
2095 $author = notags(unxmlify($data->author));
2096 $guid = notags(unxmlify($data->guid));
2097 $conversation_guid = notags(unxmlify($data->conversation_guid));
2098 $text = unxmlify($data->text);
2099 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
2101 $contact = self::allowedContactByHandle($importer, $author, true);
2106 $conversation = null;
2109 "SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
2110 intval($importer["uid"]),
2111 dbesc($conversation_guid)
2114 $conversation = $c[0];
2116 logger("conversation not available.");
2120 $message_uri = $author.":".$guid;
2122 $person = self::personByHandle($author);
2124 logger("unable to find author details");
2128 $body = diaspora2bb($text);
2130 $body = self::replacePeopleGuid($body, $person["url"]);
2135 "SELECT `id` FROM `mail` WHERE `guid` = '%s' AND `uid` = %d LIMIT 1",
2137 intval($importer["uid"])
2139 if (DBM::is_result($r)) {
2140 logger("duplicate message already delivered.", LOGGER_DEBUG);
2145 "INSERT INTO `mail` (`uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`)
2146 VALUES ( %d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
2147 intval($importer["uid"]),
2149 intval($conversation["id"]),
2150 dbesc($person["name"]),
2151 dbesc($person["photo"]),
2152 dbesc($person["url"]),
2153 intval($contact["id"]),
2154 dbesc($conversation["subject"]),
2158 dbesc($message_uri),
2159 dbesc($author.":".$conversation["guid"]),
2165 dba::update('conv', ['updated' => DateTimeFormat::utcNow()], ['id' => $conversation["id"]]);
2170 * @brief Processes participations - unsupported by now
2172 * @param array $importer Array of the importer user
2173 * @param object $data The message object
2175 * @return bool always true
2177 private static function receiveParticipation($importer, $data)
2179 $author = strtolower(notags(unxmlify($data->author)));
2180 $parent_guid = notags(unxmlify($data->parent_guid));
2182 $contact_id = Contact::getIdForURL($author);
2184 logger('Contact not found: '.$author);
2188 $person = self::personByHandle($author);
2189 if (!is_array($person)) {
2190 logger("Person not found: ".$author);
2194 $item = dba::selectFirst('item', ['id'], ['guid' => $parent_guid, 'origin' => true, 'private' => false]);
2195 if (!DBM::is_result($item)) {
2196 logger('Item not found, no origin or private: '.$parent_guid);
2200 $author_parts = explode('@', $author);
2201 if (isset($author_parts[1])) {
2202 $server = $author_parts[1];
2204 // Should never happen
2208 logger('Received participation for ID: '.$item['id'].' - Contact: '.$contact_id.' - Server: '.$server, LOGGER_DEBUG);
2209 dba::insert('participation', ['iid' => $item['id'], 'cid' => $contact_id, 'fid' => $person['id'], 'server' => $server]);
2211 // Send all existing comments and likes to the requesting server
2212 $comments = dba::p("SELECT `item`.`id`, `item`.`verb`, `contact`.`self`
2214 INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
2215 WHERE `item`.`parent` = ? AND `item`.`id` != `item`.`parent`", $item['id']);
2216 while ($comment = dba::fetch($comments)) {
2217 if ($comment['verb'] == ACTIVITY_POST) {
2218 $cmd = $comment['self'] ? 'comment-new' : 'comment-import';
2220 $cmd = $comment['self'] ? 'like' : 'comment-import';
2222 logger("Send ".$cmd." for item ".$comment['id']." to contact ".$contact_id, LOGGER_DEBUG);
2223 Worker::add(PRIORITY_HIGH, 'Delivery', $cmd, $comment['id'], $contact_id);
2225 dba::close($comments);
2231 * @brief Processes photos - unneeded
2233 * @param array $importer Array of the importer user
2234 * @param object $data The message object
2236 * @return bool always true
2238 private static function receivePhoto($importer, $data)
2240 // There doesn't seem to be a reason for this function,
2241 // since the photo data is transmitted in the status message as well
2246 * @brief Processes poll participations - unssupported
2248 * @param array $importer Array of the importer user
2249 * @param object $data The message object
2251 * @return bool always true
2253 private static function receivePollParticipation($importer, $data)
2255 // We don't support polls by now
2260 * @brief Processes incoming profile updates
2262 * @param array $importer Array of the importer user
2263 * @param object $data The message object
2265 * @return bool Success
2267 private static function receiveProfile($importer, $data)
2269 $author = strtolower(notags(unxmlify($data->author)));
2271 $contact = self::contactByHandle($importer["uid"], $author);
2276 $name = unxmlify($data->first_name).((strlen($data->last_name)) ? " ".unxmlify($data->last_name) : "");
2277 $image_url = unxmlify($data->image_url);
2278 $birthday = unxmlify($data->birthday);
2279 $gender = unxmlify($data->gender);
2280 $about = diaspora2bb(unxmlify($data->bio));
2281 $location = diaspora2bb(unxmlify($data->location));
2282 $searchable = (unxmlify($data->searchable) == "true");
2283 $nsfw = (unxmlify($data->nsfw) == "true");
2284 $tags = unxmlify($data->tag_string);
2286 $tags = explode("#", $tags);
2289 foreach ($tags as $tag) {
2290 $tag = trim(strtolower($tag));
2296 $keywords = implode(", ", $keywords);
2298 $handle_parts = explode("@", $author);
2299 $nick = $handle_parts[0];
2302 $name = $handle_parts[0];
2305 if (preg_match("|^https?://|", $image_url) === 0) {
2306 $image_url = "http://".$handle_parts[1].$image_url;
2309 Contact::updateAvatar($image_url, $importer["uid"], $contact["id"]);
2311 // Generic birthday. We don't know the timezone. The year is irrelevant.
2313 $birthday = str_replace("1000", "1901", $birthday);
2315 if ($birthday != "") {
2316 $birthday = DateTimeFormat::utc($birthday, "Y-m-d");
2319 // this is to prevent multiple birthday notifications in a single year
2320 // if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
2322 if (substr($birthday, 5) === substr($contact["bd"], 5)) {
2323 $birthday = $contact["bd"];
2327 "UPDATE `contact` SET `name` = '%s', `nick` = '%s', `addr` = '%s', `name-date` = '%s', `bd` = '%s',
2328 `location` = '%s', `about` = '%s', `keywords` = '%s', `gender` = '%s' WHERE `id` = %d AND `uid` = %d",
2332 dbesc(DateTimeFormat::utcNow()),
2338 intval($contact["id"]),
2339 intval($importer["uid"])
2342 $gcontact = ["url" => $contact["url"], "network" => NETWORK_DIASPORA, "generation" => 2,
2343 "photo" => $image_url, "name" => $name, "location" => $location,
2344 "about" => $about, "birthday" => $birthday, "gender" => $gender,
2345 "addr" => $author, "nick" => $nick, "keywords" => $keywords,
2346 "hide" => !$searchable, "nsfw" => $nsfw];
2348 $gcid = GContact::update($gcontact);
2350 GContact::link($gcid, $importer["uid"], $contact["id"]);
2352 logger("Profile of contact ".$contact["id"]." stored for user ".$importer["uid"], LOGGER_DEBUG);
2358 * @brief Processes incoming friend requests
2360 * @param array $importer Array of the importer user
2361 * @param array $contact The contact that send the request
2364 private static function receiveRequestMakeFriend($importer, $contact)
2368 if ($contact["rel"] == CONTACT_IS_SHARING) {
2371 ['rel' => CONTACT_IS_FRIEND, 'writable' => true],
2372 ['id' => $contact["id"], 'uid' => $importer["uid"]]
2375 // send notification
2378 "SELECT `hide-friends` FROM `profile` WHERE `uid` = %d AND `is-default` = 1 LIMIT 1",
2379 intval($importer["uid"])
2382 if ($r && !$r[0]["hide-friends"] && !$contact["hidden"] && intval(PConfig::get($importer["uid"], "system", "post_newfriend"))) {
2384 "SELECT * FROM `contact` WHERE `self` AND `uid` = %d LIMIT 1",
2385 intval($importer["uid"])
2388 // they are not CONTACT_IS_FOLLOWER anymore but that's what we have in the array
2390 if ($self && $contact["rel"] == CONTACT_IS_FOLLOWER) {
2392 $arr["protocol"] = PROTOCOL_DIASPORA;
2393 $arr["uri"] = $arr["parent-uri"] = item_new_uri($a->get_hostname(), $importer["uid"]);
2394 $arr["uid"] = $importer["uid"];
2395 $arr["contact-id"] = $self[0]["id"];
2397 $arr["type"] = 'wall';
2398 $arr["gravity"] = 0;
2400 $arr["author-name"] = $arr["owner-name"] = $self[0]["name"];
2401 $arr["author-link"] = $arr["owner-link"] = $self[0]["url"];
2402 $arr["author-avatar"] = $arr["owner-avatar"] = $self[0]["thumb"];
2403 $arr["verb"] = ACTIVITY_FRIEND;
2404 $arr["object-type"] = ACTIVITY_OBJ_PERSON;
2406 $A = "[url=".$self[0]["url"]."]".$self[0]["name"]."[/url]";
2407 $B = "[url=".$contact["url"]."]".$contact["name"]."[/url]";
2408 $BPhoto = "[url=".$contact["url"]."][img]".$contact["thumb"]."[/img][/url]";
2409 $arr["body"] = L10n::t('%1$s is now friends with %2$s', $A, $B)."\n\n\n".$BPhoto;
2411 $arr["object"] = self::constructNewFriendObject($contact);
2413 $user = dba::selectFirst('user', ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'], ['uid' => $importer["uid"]]);
2415 $arr["allow_cid"] = $user["allow_cid"];
2416 $arr["allow_gid"] = $user["allow_gid"];
2417 $arr["deny_cid"] = $user["deny_cid"];
2418 $arr["deny_gid"] = $user["deny_gid"];
2420 $i = Item::insert($arr);
2422 Worker::add(PRIORITY_HIGH, "Notifier", "activity", $i);
2429 * @brief Creates a XML object for a "new friend" message
2431 * @param array $contact Array of the contact
2433 * @return string The XML
2435 private static function constructNewFriendObject($contact)
2437 $objtype = ACTIVITY_OBJ_PERSON;
2438 $link = '<link rel="alternate" type="text/html" href="'.$contact["url"].'" />'."\n".
2439 '<link rel="photo" type="image/jpeg" href="'.$contact["thumb"].'" />'."\n";
2441 $xmldata = ["object" => ["type" => $objtype,
2442 "title" => $contact["name"],
2443 "id" => $contact["url"]."/".$contact["name"],
2446 return XML::fromArray($xmldata, $xml, true);
2450 * @brief Processes incoming sharing notification
2452 * @param array $importer Array of the importer user
2453 * @param object $data The message object
2455 * @return bool Success
2457 private static function receiveContactRequest($importer, $data)
2459 $author = unxmlify($data->author);
2460 $recipient = unxmlify($data->recipient);
2462 if (!$author || !$recipient) {
2466 // the current protocol version doesn't know these fields
2467 // That means that we will assume their existance
2468 if (isset($data->following)) {
2469 $following = (unxmlify($data->following) == "true");
2474 if (isset($data->sharing)) {
2475 $sharing = (unxmlify($data->sharing) == "true");
2480 $contact = self::contactByHandle($importer["uid"], $author);
2482 // perhaps we were already sharing with this person. Now they're sharing with us.
2483 // That makes us friends.
2486 logger("Author ".$author." (Contact ".$contact["id"].") wants to follow us.", LOGGER_DEBUG);
2487 self::receiveRequestMakeFriend($importer, $contact);
2489 // refetch the contact array
2490 $contact = self::contactByHandle($importer["uid"], $author);
2492 // If we are now friends, we are sending a share message.
2493 // Normally we needn't to do so, but the first message could have been vanished.
2494 if (in_array($contact["rel"], [CONTACT_IS_FRIEND])) {
2495 $u = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($importer["uid"]));
2497 logger("Sending share message to author ".$author." - Contact: ".$contact["id"]." - User: ".$importer["uid"], LOGGER_DEBUG);
2498 $ret = self::sendShare($u[0], $contact);
2503 logger("Author ".$author." doesn't want to follow us anymore.", LOGGER_DEBUG);
2504 Contact::removeFollower($importer, $contact);
2509 if (!$following && $sharing && in_array($importer["page-flags"], [PAGE_SOAPBOX, PAGE_NORMAL])) {
2510 logger("Author ".$author." wants to share with us - but doesn't want to listen. Request is ignored.", LOGGER_DEBUG);
2512 } elseif (!$following && !$sharing) {
2513 logger("Author ".$author." doesn't want anything - and we don't know the author. Request is ignored.", LOGGER_DEBUG);
2515 } elseif (!$following && $sharing) {
2516 logger("Author ".$author." wants to share with us.", LOGGER_DEBUG);
2517 } elseif ($following && $sharing) {
2518 logger("Author ".$author." wants to have a bidirectional conection.", LOGGER_DEBUG);
2519 } elseif ($following && !$sharing) {
2520 logger("Author ".$author." wants to listen to us.", LOGGER_DEBUG);
2523 $ret = self::personByHandle($author);
2525 if (!$ret || ($ret["network"] != NETWORK_DIASPORA)) {
2526 logger("Cannot resolve diaspora handle ".$author." for ".$recipient);
2530 $batch = (($ret["batch"]) ? $ret["batch"] : implode("/", array_slice(explode("/", $ret["url"]), 0, 3))."/receive/public");
2533 "INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`nurl`,`batch`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
2534 VALUES (%d, '%s', '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s','%s',%d,%d)",
2535 intval($importer["uid"]),
2536 dbesc($ret["network"]),
2537 dbesc($ret["addr"]),
2538 DateTimeFormat::utcNow(),
2540 dbesc(normalise_link($ret["url"])),
2542 dbesc($ret["name"]),
2543 dbesc($ret["nick"]),
2544 dbesc($ret["photo"]),
2545 dbesc($ret["pubkey"]),
2546 dbesc($ret["notify"]),
2547 dbesc($ret["poll"]),
2552 // find the contact record we just created
2554 $contact_record = self::contactByHandle($importer["uid"], $author);
2556 if (!$contact_record) {
2557 logger("unable to locate newly created contact record.");
2561 logger("Author ".$author." was added as contact number ".$contact_record["id"].".", LOGGER_DEBUG);
2563 Group::addMember(User::getDefaultGroup($importer['uid'], $ret["network"]), $contact_record['id']);
2565 Contact::updateAvatar($ret["photo"], $importer['uid'], $contact_record["id"], true);
2567 if ($importer["page-flags"] == PAGE_NORMAL) {
2568 logger("Sending intra message for author ".$author.".", LOGGER_DEBUG);
2570 $hash = random_string().(string)time(); // Generate a confirm_key
2573 "INSERT INTO `intro` (`uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime`)
2574 VALUES (%d, %d, %d, %d, '%s', '%s', '%s')",
2575 intval($importer["uid"]),
2576 intval($contact_record["id"]),
2579 dbesc(L10n::t("Sharing notification from Diaspora network")),
2581 dbesc(DateTimeFormat::utcNow())
2584 // automatic friend approval
2586 logger("Does an automatic friend approval for author ".$author.".", LOGGER_DEBUG);
2588 Contact::updateAvatar($contact_record["photo"], $importer["uid"], $contact_record["id"]);
2590 // technically they are sharing with us (CONTACT_IS_SHARING),
2591 // but if our page-type is PAGE_COMMUNITY or PAGE_SOAPBOX
2592 // we are going to change the relationship and make them a follower.
2594 if (($importer["page-flags"] == PAGE_FREELOVE) && $sharing && $following) {
2595 $new_relation = CONTACT_IS_FRIEND;
2596 } elseif (($importer["page-flags"] == PAGE_FREELOVE) && $sharing) {
2597 $new_relation = CONTACT_IS_SHARING;
2599 $new_relation = CONTACT_IS_FOLLOWER;
2603 "UPDATE `contact` SET `rel` = %d,
2611 intval($new_relation),
2612 dbesc(DateTimeFormat::utcNow()),
2613 dbesc(DateTimeFormat::utcNow()),
2614 intval($contact_record["id"])
2617 $u = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($importer["uid"]));
2619 logger("Sending share message (Relation: ".$new_relation.") to author ".$author." - Contact: ".$contact_record["id"]." - User: ".$importer["uid"], LOGGER_DEBUG);
2620 $ret = self::sendShare($u[0], $contact_record);
2622 // Send the profile data, maybe it weren't transmitted before
2623 self::sendProfile($importer["uid"], [$contact_record]);
2631 * @brief Fetches a message with a given guid
2633 * @param string $guid message guid
2634 * @param string $orig_author handle of the original post
2635 * @param string $author handle of the sharer
2637 * @return array The fetched item
2639 private static function originalItem($guid, $orig_author, $author)
2641 // Do we already have this item?
2643 "SELECT `body`, `tag`, `app`, `created`, `object-type`, `uri`, `guid`,
2644 `author-name`, `author-link`, `author-avatar`
2645 FROM `item` WHERE `guid` = '%s' AND `visible` AND NOT `deleted` AND `body` != '' LIMIT 1",
2649 if (DBM::is_result($r)) {
2650 logger("reshared message ".$guid." already exists on system.");
2652 // Maybe it is already a reshared item?
2653 // Then refetch the content, if it is a reshare from a reshare.
2654 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2655 if (self::isReshare($r[0]["body"], true)) {
2657 } elseif (self::isReshare($r[0]["body"], false) || strstr($r[0]["body"], "[share")) {
2658 $r[0]["body"] = diaspora2bb(bb2diaspora($r[0]["body"]));
2660 $r[0]["body"] = self::replacePeopleGuid($r[0]["body"], $r[0]["author-link"]);
2662 // Add OEmbed and other information to the body
2663 $r[0]["body"] = add_page_info_to_body($r[0]["body"], false, true);
2671 if (!DBM::is_result($r)) {
2672 $server = "https://".substr($orig_author, strpos($orig_author, "@") + 1);
2673 logger("1st try: reshared message ".$guid." will be fetched via SSL from the server ".$server);
2674 $item_id = self::storeByGuid($guid, $server);
2677 $server = "http://".substr($orig_author, strpos($orig_author, "@") + 1);
2678 logger("2nd try: reshared message ".$guid." will be fetched without SLL from the server ".$server);
2679 $item_id = self::storeByGuid($guid, $server);
2684 "SELECT `body`, `tag`, `app`, `created`, `object-type`, `uri`, `guid`,
2685 `author-name`, `author-link`, `author-avatar`
2686 FROM `item` WHERE `id` = %d AND `visible` AND NOT `deleted` AND `body` != '' LIMIT 1",
2690 if (DBM::is_result($r)) {
2691 // If it is a reshared post from another network then reformat to avoid display problems with two share elements
2692 if (self::isReshare($r[0]["body"], false)) {
2693 $r[0]["body"] = diaspora2bb(bb2diaspora($r[0]["body"]));
2694 $r[0]["body"] = self::replacePeopleGuid($r[0]["body"], $r[0]["author-link"]);
2705 * @brief Processes a reshare message
2707 * @param array $importer Array of the importer user
2708 * @param object $data The message object
2709 * @param string $xml The original XML of the message
2711 * @return int the message id
2713 private static function receiveReshare($importer, $data, $xml)
2715 $author = notags(unxmlify($data->author));
2716 $guid = notags(unxmlify($data->guid));
2717 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
2718 $root_author = notags(unxmlify($data->root_author));
2719 $root_guid = notags(unxmlify($data->root_guid));
2720 /// @todo handle unprocessed property "provider_display_name"
2721 $public = notags(unxmlify($data->public));
2723 $contact = self::allowedContactByHandle($importer, $author, false);
2728 $message_id = self::messageExists($importer["uid"], $guid);
2733 $original_item = self::originalItem($root_guid, $root_author, $author);
2734 if (!$original_item) {
2738 $orig_url = System::baseUrl()."/display/".$original_item["guid"];
2742 $datarray["uid"] = $importer["uid"];
2743 $datarray["contact-id"] = $contact["id"];
2744 $datarray["network"] = NETWORK_DIASPORA;
2746 $datarray["author-name"] = $contact["name"];
2747 $datarray["author-link"] = $contact["url"];
2748 $datarray["author-avatar"] = ((x($contact, "thumb")) ? $contact["thumb"] : $contact["photo"]);
2750 $datarray["owner-name"] = $datarray["author-name"];
2751 $datarray["owner-link"] = $datarray["author-link"];
2752 $datarray["owner-avatar"] = $datarray["author-avatar"];
2754 $datarray["guid"] = $guid;
2755 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
2757 $datarray["verb"] = ACTIVITY_POST;
2758 $datarray["gravity"] = GRAVITY_PARENT;
2760 $datarray["protocol"] = PROTOCOL_DIASPORA;
2761 $datarray["source"] = $xml;
2763 $prefix = share_header(
2764 $original_item["author-name"],
2765 $original_item["author-link"],
2766 $original_item["author-avatar"],
2767 $original_item["guid"],
2768 $original_item["created"],
2771 $datarray["body"] = $prefix.$original_item["body"]."[/share]";
2773 $datarray["tag"] = $original_item["tag"];
2774 $datarray["app"] = $original_item["app"];
2776 $datarray["plink"] = self::plink($author, $guid);
2777 $datarray["private"] = (($public == "false") ? 1 : 0);
2778 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
2780 $datarray["object-type"] = $original_item["object-type"];
2782 self::fetchGuid($datarray);
2783 $message_id = Item::insert($datarray);
2785 self::sendParticipation($contact, $datarray);
2788 logger("Stored reshare ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
2796 * @brief Processes retractions
2798 * @param array $importer Array of the importer user
2799 * @param array $contact The contact of the item owner
2800 * @param object $data The message object
2802 * @return bool success
2804 private static function itemRetraction($importer, $contact, $data)
2806 $author = notags(unxmlify($data->author));
2807 $target_guid = notags(unxmlify($data->target_guid));
2808 $target_type = notags(unxmlify($data->target_type));
2810 $person = self::personByHandle($author);
2811 if (!is_array($person)) {
2812 logger("unable to find author detail for ".$author);
2816 if (empty($contact["url"])) {
2817 $contact["url"] = $person["url"];
2820 // Fetch items that are about to be deleted
2821 $fields = ['uid', 'id', 'parent', 'parent-uri', 'author-link'];
2823 // When we receive a public retraction, we delete every item that we find.
2824 if ($importer['uid'] == 0) {
2825 $condition = ["`guid` = ? AND NOT `file` LIKE '%%[%%' AND NOT `deleted`", $target_guid];
2827 $condition = ["`guid` = ? AND `uid` = ? AND NOT `file` LIKE '%%[%%' AND NOT `deleted`", $target_guid, $importer['uid']];
2829 $r = dba::select('item', $fields, $condition);
2830 if (!DBM::is_result($r)) {
2831 logger("Target guid ".$target_guid." was not found on this system for user ".$importer['uid'].".");
2835 while ($item = dba::fetch($r)) {
2836 // Fetch the parent item
2837 $parent = dba::selectFirst('item', ['author-link', 'origin'], ['id' => $item["parent"]]);
2839 // Only delete it if the parent author really fits
2840 if (!link_compare($parent["author-link"], $contact["url"]) && !link_compare($item["author-link"], $contact["url"])) {
2841 logger("Thread author ".$parent["author-link"]." and item author ".$item["author-link"]." don't fit to expected contact ".$contact["url"], LOGGER_DEBUG);
2845 Item::deleteById($item["id"]);
2847 logger("Deleted target ".$target_guid." (".$item["id"].") from user ".$item["uid"]." parent: ".$item["parent"], LOGGER_DEBUG);
2849 // Now check if the retraction needs to be relayed by us
2850 if ($parent["origin"]) {
2852 Worker::add(PRIORITY_HIGH, "Notifier", "drop", $item["id"]);
2860 * @brief Receives retraction messages
2862 * @param array $importer Array of the importer user
2863 * @param string $sender The sender of the message
2864 * @param object $data The message object
2866 * @return bool Success
2868 private static function receiveRetraction($importer, $sender, $data)
2870 $target_type = notags(unxmlify($data->target_type));
2872 $contact = self::contactByHandle($importer["uid"], $sender);
2873 if (!$contact && (in_array($target_type, ["Contact", "Person"]))) {
2874 logger("cannot find contact for sender: ".$sender." and user ".$importer["uid"]);
2878 logger("Got retraction for ".$target_type.", sender ".$sender." and user ".$importer["uid"], LOGGER_DEBUG);
2880 switch ($target_type) {
2885 case "StatusMessage":
2886 return self::itemRetraction($importer, $contact, $data);
2890 /// @todo What should we do with an "unshare"?
2891 // Removing the contact isn't correct since we still can read the public items
2892 Contact::remove($contact["id"]);
2896 logger("Unknown target type ".$target_type);
2903 * @brief Receives status messages
2905 * @param array $importer Array of the importer user
2906 * @param object $data The message object
2907 * @param string $xml The original XML of the message
2909 * @return int The message id of the newly created item
2911 private static function receiveStatusMessage($importer, $data, $xml)
2913 $author = notags(unxmlify($data->author));
2914 $guid = notags(unxmlify($data->guid));
2915 $created_at = DateTimeFormat::utc(notags(unxmlify($data->created_at)));
2916 $public = notags(unxmlify($data->public));
2917 $text = unxmlify($data->text);
2918 $provider_display_name = notags(unxmlify($data->provider_display_name));
2920 $contact = self::allowedContactByHandle($importer, $author, false);
2925 $message_id = self::messageExists($importer["uid"], $guid);
2931 if ($data->location) {
2932 foreach ($data->location->children() as $fieldname => $data) {
2933 $address[$fieldname] = notags(unxmlify($data));
2937 $body = diaspora2bb($text);
2941 // Attach embedded pictures to the body
2943 foreach ($data->photo as $photo) {
2944 $body = "[img]".unxmlify($photo->remote_photo_path).
2945 unxmlify($photo->remote_photo_name)."[/img]\n".$body;
2948 $datarray["object-type"] = ACTIVITY_OBJ_IMAGE;
2950 $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
2952 // Add OEmbed and other information to the body
2953 if (!self::isRedmatrix($contact["url"])) {
2954 $body = add_page_info_to_body($body, false, true);
2958 /// @todo enable support for polls
2959 //if ($data->poll) {
2960 // foreach ($data->poll AS $poll)
2965 /// @todo enable support for events
2967 $datarray["uid"] = $importer["uid"];
2968 $datarray["contact-id"] = $contact["id"];
2969 $datarray["network"] = NETWORK_DIASPORA;
2971 $datarray["author-name"] = $contact["name"];
2972 $datarray["author-link"] = $contact["url"];
2973 $datarray["author-avatar"] = ((x($contact, "thumb")) ? $contact["thumb"] : $contact["photo"]);
2975 $datarray["owner-name"] = $datarray["author-name"];
2976 $datarray["owner-link"] = $datarray["author-link"];
2977 $datarray["owner-avatar"] = $datarray["author-avatar"];
2979 $datarray["guid"] = $guid;
2980 $datarray["uri"] = $datarray["parent-uri"] = self::getUriFromGuid($author, $guid);
2982 $datarray["verb"] = ACTIVITY_POST;
2983 $datarray["gravity"] = GRAVITY_PARENT;
2985 $datarray["protocol"] = PROTOCOL_DIASPORA;
2986 $datarray["source"] = $xml;
2988 $datarray["body"] = self::replacePeopleGuid($body, $contact["url"]);
2990 if ($provider_display_name != "") {
2991 $datarray["app"] = $provider_display_name;
2994 $datarray["plink"] = self::plink($author, $guid);
2995 $datarray["private"] = (($public == "false") ? 1 : 0);
2996 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
2998 if (isset($address["address"])) {
2999 $datarray["location"] = $address["address"];
3002 if (isset($address["lat"]) && isset($address["lng"])) {
3003 $datarray["coord"] = $address["lat"]." ".$address["lng"];
3006 self::fetchGuid($datarray);
3007 $message_id = Item::insert($datarray);
3009 self::sendParticipation($contact, $datarray);
3012 logger("Stored item ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
3019 /* ************************************************************************************** *
3020 * Here are all the functions that are needed to transmit data with the Diaspora protocol *
3021 * ************************************************************************************** */
3024 * @brief returnes the handle of a contact
3026 * @param array $contact contact array
3028 * @return string the handle in the format user@domain.tld
3030 private static function myHandle($contact)
3032 if ($contact["addr"] != "") {
3033 return $contact["addr"];
3036 // Normally we should have a filled "addr" field - but in the past this wasn't the case
3037 // So - just in case - we build the the address here.
3038 if ($contact["nickname"] != "") {
3039 $nick = $contact["nickname"];
3041 $nick = $contact["nick"];
3044 return $nick."@".substr(System::baseUrl(), strpos(System::baseUrl(), "://") + 3);
3049 * @brief Creates the data for a private message in the new format
3051 * @param string $msg The message that is to be transmitted
3052 * @param array $user The record of the sender
3053 * @param array $contact Target of the communication
3054 * @param string $prvkey The private key of the sender
3055 * @param string $pubkey The public key of the receiver
3057 * @return string The encrypted data
3059 public static function encodePrivateData($msg, $user, $contact, $prvkey, $pubkey)
3061 logger("Message: ".$msg, LOGGER_DATA);
3063 // without a public key nothing will work
3065 logger("pubkey missing: contact id: ".$contact["id"]);
3069 $aes_key = openssl_random_pseudo_bytes(32);
3070 $b_aes_key = base64_encode($aes_key);
3071 $iv = openssl_random_pseudo_bytes(16);
3072 $b_iv = base64_encode($iv);
3074 $ciphertext = self::aesEncrypt($aes_key, $iv, $msg);
3076 $json = json_encode(["iv" => $b_iv, "key" => $b_aes_key]);
3078 $encrypted_key_bundle = "";
3079 openssl_public_encrypt($json, $encrypted_key_bundle, $pubkey);
3081 $json_object = json_encode(
3082 ["aes_key" => base64_encode($encrypted_key_bundle),
3083 "encrypted_magic_envelope" => base64_encode($ciphertext)]
3086 return $json_object;
3090 * @brief Creates the envelope for the "fetch" endpoint and for the new format
3092 * @param string $msg The message that is to be transmitted
3093 * @param array $user The record of the sender
3095 * @return string The envelope
3097 public static function buildMagicEnvelope($msg, $user)
3099 $b64url_data = base64url_encode($msg);
3100 $data = str_replace(["\n", "\r", " ", "\t"], ["", "", "", ""], $b64url_data);
3102 $key_id = base64url_encode(self::myHandle($user));
3103 $type = "application/xml";
3104 $encoding = "base64url";
3105 $alg = "RSA-SHA256";
3106 $signable_data = $data.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
3108 // Fallback if the private key wasn't transmitted in the expected field
3109 if ($user['uprvkey'] == "") {
3110 $user['uprvkey'] = $user['prvkey'];
3113 $signature = Crypto::rsaSign($signable_data, $user["uprvkey"]);
3114 $sig = base64url_encode($signature);
3116 $xmldata = ["me:env" => ["me:data" => $data,
3117 "@attributes" => ["type" => $type],
3118 "me:encoding" => $encoding,
3121 "@attributes2" => ["key_id" => $key_id]]];
3123 $namespaces = ["me" => "http://salmon-protocol.org/ns/magic-env"];
3125 return XML::fromArray($xmldata, $xml, false, $namespaces);
3129 * @brief Create the envelope for a message
3131 * @param string $msg The message that is to be transmitted
3132 * @param array $user The record of the sender
3133 * @param array $contact Target of the communication
3134 * @param string $prvkey The private key of the sender
3135 * @param string $pubkey The public key of the receiver
3136 * @param bool $public Is the message public?
3138 * @return string The message that will be transmitted to other servers
3140 private static function buildMessage($msg, $user, $contact, $prvkey, $pubkey, $public = false)
3142 // The message is put into an envelope with the sender's signature
3143 $envelope = self::buildMagicEnvelope($msg, $user);
3145 // Private messages are put into a second envelope, encrypted with the receivers public key
3147 $envelope = self::encodePrivateData($envelope, $user, $contact, $prvkey, $pubkey);
3154 * @brief Creates a signature for a message
3156 * @param array $owner the array of the owner of the message
3157 * @param array $message The message that is to be signed
3159 * @return string The signature
3161 private static function signature($owner, $message)
3164 unset($sigmsg["author_signature"]);
3165 unset($sigmsg["parent_author_signature"]);
3167 $signed_text = implode(";", $sigmsg);
3169 return base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3173 * @brief Transmit a message to a target server
3175 * @param array $owner the array of the item owner
3176 * @param array $contact Target of the communication
3177 * @param string $envelope The message that is to be transmitted
3178 * @param bool $public_batch Is it a public post?
3179 * @param bool $queue_run Is the transmission called from the queue?
3180 * @param string $guid message guid
3182 * @return int Result of the transmission
3184 public static function transmit($owner, $contact, $envelope, $public_batch, $queue_run = false, $guid = "", $no_queue = false)
3188 $enabled = intval(Config::get("system", "diaspora_enabled"));
3193 $logid = random_string(4);
3194 $dest_url = ($public_batch ? $contact["batch"] : $contact["notify"]);
3196 // Fetch the fcontact entry when there is missing data
3197 // Will possibly happen when data is transmitted to a DFRN contact
3198 if (empty($dest_url) && !empty($contact['addr'])) {
3199 $fcontact = self::personByHandle($contact['addr']);
3200 $dest_url = ($public_batch ? $fcontact["batch"] : $fcontact["notify"]);
3204 logger("no url for contact: ".$contact["id"]." batch mode =".$public_batch);
3208 logger("transmit: ".$logid."-".$guid." ".$dest_url);
3210 if (!$queue_run && Queue::wasDelayed($contact["id"])) {
3213 if (!intval(Config::get("system", "diaspora_test"))) {
3214 $content_type = (($public_batch) ? "application/magic-envelope+xml" : "application/json");
3216 Network::post($dest_url."/", $envelope, ["Content-Type: ".$content_type]);
3217 $return_code = $a->get_curl_code();
3219 logger("test_mode");
3224 logger("transmit: ".$logid."-".$guid." returns: ".$return_code);
3226 if (!$return_code || (($return_code == 503) && (stristr($a->get_curl_headers(), "retry-after")))) {
3228 logger("queue message");
3229 // queue message for redelivery
3230 Queue::add($contact["id"], NETWORK_DIASPORA, $envelope, $public_batch, $guid);
3233 // The message could not be delivered. We mark the contact as "dead"
3234 Contact::markForArchival($contact);
3235 } elseif (($return_code >= 200) && ($return_code <= 299)) {
3236 // We successfully delivered a message, the contact is alive
3237 Contact::unmarkForArchival($contact);
3240 return $return_code ? $return_code : -1;
3245 * @brief Build the post xml
3247 * @param string $type The message type
3248 * @param array $message The message data
3250 * @return string The post XML
3252 public static function buildPostXml($type, $message)
3254 $data = [$type => $message];
3256 return XML::fromArray($data, $xml);
3260 * @brief Builds and transmit messages
3262 * @param array $owner the array of the item owner
3263 * @param array $contact Target of the communication
3264 * @param string $type The message type
3265 * @param array $message The message data
3266 * @param bool $public_batch Is it a public post?
3267 * @param string $guid message guid
3268 * @param bool $spool Should the transmission be spooled or transmitted?
3270 * @return int Result of the transmission
3272 private static function buildAndTransmit($owner, $contact, $type, $message, $public_batch = false, $guid = "", $spool = false)
3274 $msg = self::buildPostXml($type, $message);
3276 logger('message: '.$msg, LOGGER_DATA);
3277 logger('send guid '.$guid, LOGGER_DEBUG);
3279 // Fallback if the private key wasn't transmitted in the expected field
3280 if ($owner['uprvkey'] == "") {
3281 $owner['uprvkey'] = $owner['prvkey'];
3284 $envelope = self::buildMessage($msg, $owner, $contact, $owner['uprvkey'], $contact['pubkey'], $public_batch);
3287 Queue::add($contact['id'], NETWORK_DIASPORA, $envelope, $public_batch, $guid);
3290 $return_code = self::transmit($owner, $contact, $envelope, $public_batch, false, $guid);
3293 logger("guid: ".$guid." result ".$return_code, LOGGER_DEBUG);
3295 return $return_code;
3299 * @brief sends a participation (Used to get all further updates)
3301 * @param array $contact Target of the communication
3302 * @param array $item Item array
3304 * @return int The result of the transmission
3306 private static function sendParticipation($contact, $item)
3308 // Don't send notifications for private postings
3309 if ($item['private']) {
3313 $cachekey = "diaspora:sendParticipation:".$item['guid'];
3315 $result = Cache::get($cachekey);
3316 if (!is_null($result)) {
3320 // Fetch some user id to have a valid handle to transmit the participation.
3321 // In fact it doesn't matter which user sends this - but it is needed by the protocol.
3322 // If the item belongs to a user, we take this user id.
3323 if ($item['uid'] == 0) {
3324 $condition = ['verified' => true, 'blocked' => false, 'account_removed' => false, 'account_expired' => false];
3325 $first_user = dba::selectFirst('user', ['uid'], $condition);
3326 $owner = User::getOwnerDataById($first_user['uid']);
3328 $owner = User::getOwnerDataById($item['uid']);
3331 $author = self::myHandle($owner);
3333 $message = ["author" => $author,
3334 "guid" => get_guid(32),
3335 "parent_type" => "Post",
3336 "parent_guid" => $item["guid"]];
3338 logger("Send participation for ".$item["guid"]." by ".$author, LOGGER_DEBUG);
3340 // It doesn't matter what we store, we only want to avoid sending repeated notifications for the same item
3341 Cache::set($cachekey, $item["guid"], CACHE_QUARTER_HOUR);
3343 return self::buildAndTransmit($owner, $contact, "participation", $message);
3347 * @brief sends an account migration
3349 * @param array $owner the array of the item owner
3350 * @param array $contact Target of the communication
3351 * @param int $uid User ID
3353 * @return int The result of the transmission
3355 public static function sendAccountMigration($owner, $contact, $uid)
3357 $old_handle = PConfig::get($uid, 'system', 'previous_addr');
3358 $profile = self::createProfileData($uid);
3360 $signed_text = 'AccountMigration:'.$old_handle.':'.$profile['author'];
3361 $signature = base64_encode(Crypto::rsaSign($signed_text, $owner["uprvkey"], "sha256"));
3363 $message = ["author" => $old_handle,
3364 "profile" => $profile,
3365 "signature" => $signature];
3367 logger("Send account migration ".print_r($message, true), LOGGER_DEBUG);
3369 return self::buildAndTransmit($owner, $contact, "account_migration", $message);
3373 * @brief Sends a "share" message
3375 * @param array $owner the array of the item owner
3376 * @param array $contact Target of the communication
3378 * @return int The result of the transmission
3380 public static function sendShare($owner, $contact)
3383 * @todo support the different possible combinations of "following" and "sharing"
3384 * Currently, Diaspora only interprets the "sharing" field
3386 * Before switching this code productive, we have to check all "sendShare" calls if "rel" is set correctly
3390 switch ($contact["rel"]) {
3391 case CONTACT_IS_FRIEND:
3394 case CONTACT_IS_SHARING:
3397 case CONTACT_IS_FOLLOWER:
3403 $message = ["author" => self::myHandle($owner),
3404 "recipient" => $contact["addr"],
3405 "following" => "true",
3406 "sharing" => "true"];
3408 logger("Send share ".print_r($message, true), LOGGER_DEBUG);
3410 return self::buildAndTransmit($owner, $contact, "contact", $message);
3414 * @brief sends an "unshare"
3416 * @param array $owner the array of the item owner
3417 * @param array $contact Target of the communication
3419 * @return int The result of the transmission
3421 public static function sendUnshare($owner, $contact)
3423 $message = ["author" => self::myHandle($owner),
3424 "recipient" => $contact["addr"],
3425 "following" => "false",
3426 "sharing" => "false"];
3428 logger("Send unshare ".print_r($message, true), LOGGER_DEBUG);
3430 return self::buildAndTransmit($owner, $contact, "contact", $message);
3434 * @brief Checks a message body if it is a reshare
3436 * @param string $body The message body that is to be check
3437 * @param bool $complete Should it be a complete check or a simple check?
3439 * @return array|bool Reshare details or "false" if no reshare
3441 public static function isReshare($body, $complete = true)
3443 $body = trim($body);
3445 // Skip if it isn't a pure repeated messages
3446 // Does it start with a share?
3447 if ((strpos($body, "[share") > 0) && $complete) {
3451 // Does it end with a share?
3452 if (strlen($body) > (strrpos($body, "[/share]") + 8)) {
3456 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", "$1", $body);
3457 // Skip if there is no shared message in there
3458 if ($body == $attributes) {
3462 // If we don't do the complete check we quit here
3468 preg_match("/guid='(.*?)'/ism", $attributes, $matches);
3469 if ($matches[1] != "") {
3470 $guid = $matches[1];
3473 preg_match('/guid="(.*?)"/ism', $attributes, $matches);
3474 if ($matches[1] != "") {
3475 $guid = $matches[1];
3480 "SELECT `contact-id` FROM `item` WHERE `guid` = '%s' AND `network` IN ('%s', '%s') LIMIT 1",
3487 $ret["root_handle"] = self::handleFromContact($r[0]["contact-id"]);
3488 $ret["root_guid"] = $guid;
3494 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
3495 if ($matches[1] != "") {
3496 $profile = $matches[1];
3499 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
3500 if ($matches[1] != "") {
3501 $profile = $matches[1];
3506 $ret["root_handle"] = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
3507 if (($ret["root_handle"] == $profile) || ($ret["root_handle"] == "")) {
3512 preg_match("/link='(.*?)'/ism", $attributes, $matches);
3513 if ($matches[1] != "") {
3514 $link = $matches[1];
3517 preg_match('/link="(.*?)"/ism', $attributes, $matches);
3518 if ($matches[1] != "") {
3519 $link = $matches[1];
3522 $ret["root_guid"] = preg_replace("=https?://(.*)/posts/(.*)=ism", "$2", $link);
3523 if (($ret["root_guid"] == $link) || (trim($ret["root_guid"]) == "")) {
3531 * @brief Create an event array
3533 * @param integer $event_id The id of the event
3535 * @return array with event data
3537 private static function buildEvent($event_id)
3539 $r = q("SELECT `guid`, `uid`, `start`, `finish`, `nofinish`, `summary`, `desc`, `location`, `adjust` FROM `event` WHERE `id` = %d", intval($event_id));
3540 if (!DBM::is_result($r)) {
3548 $r = q("SELECT `timezone` FROM `user` WHERE `uid` = %d", intval($event['uid']));
3549 if (!DBM::is_result($r)) {
3555 $r = q("SELECT `addr`, `nick` FROM `contact` WHERE `uid` = %d AND `self`", intval($event['uid']));
3556 if (!DBM::is_result($r)) {
3562 $eventdata['author'] = self::myHandle($owner);
3564 if ($event['guid']) {
3565 $eventdata['guid'] = $event['guid'];
3568 $mask = DateTimeFormat::ATOM;
3570 /// @todo - establish "all day" events in Friendica
3571 $eventdata["all_day"] = "false";
3573 if (!$event['adjust']) {
3574 $eventdata['timezone'] = $user['timezone'];
3576 if ($eventdata['timezone'] == "") {
3577 $eventdata['timezone'] = 'UTC';
3581 if ($event['start']) {
3582 $eventdata['start'] = DateTimeFormat::convert($event['start'], "UTC", $eventdata['timezone'], $mask);
3584 if ($event['finish'] && !$event['nofinish']) {
3585 $eventdata['end'] = DateTimeFormat::convert($event['finish'], "UTC", $eventdata['timezone'], $mask);
3587 if ($event['summary']) {
3588 $eventdata['summary'] = html_entity_decode(bb2diaspora($event['summary']));
3590 if ($event['desc']) {
3591 $eventdata['description'] = html_entity_decode(bb2diaspora($event['desc']));
3593 if ($event['location']) {
3595 $location["address"] = html_entity_decode(bb2diaspora($event['location']));
3596 $location["lat"] = 0;
3597 $location["lng"] = 0;
3598 $eventdata['location'] = $location;
3605 * @brief Create a post (status message or reshare)
3607 * @param array $item The item that will be exported
3608 * @param array $owner the array of the item owner
3611 * 'type' -> Message type ("status_message" or "reshare")
3612 * 'message' -> Array of XML elements of the status
3614 public static function buildStatus($item, $owner)
3616 $cachekey = "diaspora:buildStatus:".$item['guid'];
3618 $result = Cache::get($cachekey);
3619 if (!is_null($result)) {
3623 $myaddr = self::myHandle($owner);
3625 $public = (($item["private"]) ? "false" : "true");
3627 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
3629 // Detect a share element and do a reshare
3630 if (!$item['private'] && ($ret = self::isReshare($item["body"]))) {
3631 $message = ["author" => $myaddr,
3632 "guid" => $item["guid"],
3633 "created_at" => $created,
3634 "root_author" => $ret["root_handle"],
3635 "root_guid" => $ret["root_guid"],
3636 "provider_display_name" => $item["app"],
3637 "public" => $public];
3641 $title = $item["title"];
3642 $body = $item["body"];
3644 // convert to markdown
3645 $body = html_entity_decode(bb2diaspora($body));
3648 if (strlen($title)) {
3649 $body = "## ".html_entity_decode($title)."\n\n".$body;
3652 if ($item["attach"]) {
3653 $cnt = preg_match_all('/href=\"(.*?)\"(.*?)title=\"(.*?)\"/ism', $item["attach"], $matches, PREG_SET_ORDER);
3655 $body .= "\n".L10n::t("Attachments:")."\n";
3656 foreach ($matches as $mtch) {
3657 $body .= "[".$mtch[3]."](".$mtch[1].")\n";
3664 if ($item["location"] != "")
3665 $location["address"] = $item["location"];
3667 if ($item["coord"] != "") {
3668 $coord = explode(" ", $item["coord"]);
3669 $location["lat"] = $coord[0];
3670 $location["lng"] = $coord[1];
3673 $message = ["author" => $myaddr,
3674 "guid" => $item["guid"],
3675 "created_at" => $created,
3676 "public" => $public,
3678 "provider_display_name" => $item["app"],
3679 "location" => $location];
3681 // Diaspora rejects messages when they contain a location without "lat" or "lng"
3682 if (!isset($location["lat"]) || !isset($location["lng"])) {
3683 unset($message["location"]);
3686 if ($item['event-id'] > 0) {
3687 $event = self::buildEvent($item['event-id']);
3688 if (count($event)) {
3689 $message['event'] = $event;
3691 /// @todo Once Diaspora supports it, we will remove the body
3692 // $message['text'] = '';
3696 $type = "status_message";
3699 $msg = ["type" => $type, "message" => $message];
3701 Cache::set($cachekey, $msg, CACHE_QUARTER_HOUR);
3707 * @brief Sends a post
3709 * @param array $item The item that will be exported
3710 * @param array $owner the array of the item owner
3711 * @param array $contact Target of the communication
3712 * @param bool $public_batch Is it a public post?
3714 * @return int The result of the transmission
3716 public static function sendStatus($item, $owner, $contact, $public_batch = false)
3718 $status = self::buildStatus($item, $owner);
3720 return self::buildAndTransmit($owner, $contact, $status["type"], $status["message"], $public_batch, $item["guid"]);
3724 * @brief Creates a "like" object
3726 * @param array $item The item that will be exported
3727 * @param array $owner the array of the item owner
3729 * @return array The data for a "like"
3731 private static function constructLike($item, $owner)
3734 "SELECT `guid`, `uri`, `parent-uri` FROM `item` WHERE `uri` = '%s' LIMIT 1",
3735 dbesc($item["thr-parent"])
3737 if (!DBM::is_result($p)) {
3743 $target_type = ($parent["uri"] === $parent["parent-uri"] ? "Post" : "Comment");
3745 if ($item['verb'] === ACTIVITY_LIKE) {
3747 } elseif ($item['verb'] === ACTIVITY_DISLIKE) {
3748 $positive = "false";
3751 return(["author" => self::myHandle($owner),
3752 "guid" => $item["guid"],
3753 "parent_guid" => $parent["guid"],
3754 "parent_type" => $target_type,
3755 "positive" => $positive,
3756 "author_signature" => ""]);
3760 * @brief Creates an "EventParticipation" object
3762 * @param array $item The item that will be exported
3763 * @param array $owner the array of the item owner
3765 * @return array The data for an "EventParticipation"
3767 private static function constructAttend($item, $owner)
3770 "SELECT `guid`, `uri`, `parent-uri` FROM `item` WHERE `uri` = '%s' LIMIT 1",
3771 dbesc($item["thr-parent"])
3773 if (!DBM::is_result($p)) {
3779 switch ($item['verb']) {
3780 case ACTIVITY_ATTEND:
3781 $attend_answer = 'accepted';
3783 case ACTIVITY_ATTENDNO:
3784 $attend_answer = 'declined';
3786 case ACTIVITY_ATTENDMAYBE:
3787 $attend_answer = 'tentative';
3790 logger('Unknown verb '.$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 $owner the array of the item owner
3807 * @return array The data for a comment
3809 private static function constructComment($item, $owner)
3811 $cachekey = "diaspora:constructComment:".$item['guid'];
3813 $result = Cache::get($cachekey);
3814 if (!is_null($result)) {
3819 "SELECT `guid` FROM `item` WHERE `parent` = %d AND `id` = %d LIMIT 1",
3820 intval($item["parent"]),
3821 intval($item["parent"])
3824 if (!DBM::is_result($p)) {
3830 $text = html_entity_decode(bb2diaspora($item["body"]));
3831 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
3833 $comment = ["author" => self::myHandle($owner),
3834 "guid" => $item["guid"],
3835 "created_at" => $created,
3836 "parent_guid" => $parent["guid"],
3838 "author_signature" => ""];
3840 // Send the thread parent guid only if it is a threaded comment
3841 if ($item['thr-parent'] != $item['parent-uri']) {
3842 $comment['thread_parent_guid'] = self::getGuidFromUri($item['thr-parent'], $item['uid']);
3845 Cache::set($cachekey, $comment, CACHE_QUARTER_HOUR);
3851 * @brief Send a like or a comment
3853 * @param array $item The item that will be exported
3854 * @param array $owner the array of the item owner
3855 * @param array $contact Target of the communication
3856 * @param bool $public_batch Is it a public post?
3858 * @return int The result of the transmission
3860 public static function sendFollowup($item, $owner, $contact, $public_batch = false)
3862 if (in_array($item['verb'], [ACTIVITY_ATTEND, ACTIVITY_ATTENDNO, ACTIVITY_ATTENDMAYBE])) {
3863 $message = self::constructAttend($item, $owner);
3864 $type = "event_participation";
3865 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3866 $message = self::constructLike($item, $owner);
3869 $message = self::constructComment($item, $owner);
3877 $message["author_signature"] = self::signature($owner, $message);
3879 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
3883 * @brief Creates a message from a signature record entry
3885 * @param array $item The item that will be exported
3886 * @param array $signature The entry of the "sign" record
3888 * @return string The message
3890 private static function messageFromSignature($item, $signature)
3892 // Split the signed text
3893 $signed_parts = explode(";", $signature['signed_text']);
3895 if ($item["deleted"]) {
3896 $message = ["author" => $signature['signer'],
3897 "target_guid" => $signed_parts[0],
3898 "target_type" => $signed_parts[1]];
3899 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3900 $message = ["author" => $signed_parts[4],
3901 "guid" => $signed_parts[1],
3902 "parent_guid" => $signed_parts[3],
3903 "parent_type" => $signed_parts[2],
3904 "positive" => $signed_parts[0],
3905 "author_signature" => $signature['signature'],
3906 "parent_author_signature" => ""];
3908 // Remove the comment guid
3909 $guid = array_shift($signed_parts);
3911 // Remove the parent guid
3912 $parent_guid = array_shift($signed_parts);
3914 // Remove the handle
3915 $handle = array_pop($signed_parts);
3917 // Glue the parts together
3918 $text = implode(";", $signed_parts);
3920 $message = ["author" => $handle,
3922 "parent_guid" => $parent_guid,
3923 "text" => implode(";", $signed_parts),
3924 "author_signature" => $signature['signature'],
3925 "parent_author_signature" => ""];
3931 * @brief Relays messages (like, comment, retraction) to other servers if we are the thread owner
3933 * @param array $item The item that will be exported
3934 * @param array $owner the array of the item owner
3935 * @param array $contact Target of the communication
3936 * @param bool $public_batch Is it a public post?
3938 * @return int The result of the transmission
3940 public static function sendRelay($item, $owner, $contact, $public_batch = false)
3942 if ($item["deleted"]) {
3943 return self::sendRetraction($item, $owner, $contact, $public_batch, true);
3944 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
3950 logger("Got relayable data ".$type." for item ".$item["guid"]." (".$item["id"].")", LOGGER_DEBUG);
3952 // fetch the original signature
3955 "SELECT `signed_text`, `signature`, `signer` FROM `sign` WHERE `iid` = %d LIMIT 1",
3960 logger("Couldn't fetch signatur for item ".$item["guid"]." (".$item["id"].")", LOGGER_DEBUG);
3966 // Old way - is used by the internal Friendica functions
3967 /// @todo Change all signatur storing functions to the new format
3968 if ($signature['signed_text'] && $signature['signature'] && $signature['signer']) {
3969 $message = self::messageFromSignature($item, $signature);
3971 $msg = json_decode($signature['signed_text'], true);
3974 if (is_array($msg)) {
3975 foreach ($msg as $field => $data) {
3976 if (!$item["deleted"]) {
3977 if ($field == "diaspora_handle") {
3980 if ($field == "target_type") {
3981 $field = "parent_type";
3985 $message[$field] = $data;
3988 logger("Signature text for item ".$item["guid"]." (".$item["id"].") couldn't be extracted: ".$signature['signed_text'], LOGGER_DEBUG);
3992 $message["parent_author_signature"] = self::signature($owner, $message);
3994 logger("Relayed data ".print_r($message, true), LOGGER_DEBUG);
3996 return self::buildAndTransmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
4000 * @brief Sends a retraction (deletion) of a message, like or comment
4002 * @param array $item The item that will be exported
4003 * @param array $owner the array of the item owner
4004 * @param array $contact Target of the communication
4005 * @param bool $public_batch Is it a public post?
4006 * @param bool $relay Is the retraction transmitted from a relay?
4008 * @return int The result of the transmission
4010 public static function sendRetraction($item, $owner, $contact, $public_batch = false, $relay = false)
4012 $itemaddr = self::handleFromContact($item["contact-id"], $item["gcontact-id"]);
4014 $msg_type = "retraction";
4016 if ($item['id'] == $item['parent']) {
4017 $target_type = "Post";
4018 } elseif (in_array($item["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4019 $target_type = "Like";
4021 $target_type = "Comment";
4024 $message = ["author" => $itemaddr,
4025 "target_guid" => $item['guid'],
4026 "target_type" => $target_type];
4028 logger("Got message ".print_r($message, true), LOGGER_DEBUG);
4030 return self::buildAndTransmit($owner, $contact, $msg_type, $message, $public_batch, $item["guid"]);
4034 * @brief Sends a mail
4036 * @param array $item The item that will be exported
4037 * @param array $owner The owner
4038 * @param array $contact Target of the communication
4040 * @return int The result of the transmission
4042 public static function sendMail($item, $owner, $contact)
4044 $myaddr = self::myHandle($owner);
4047 "SELECT * FROM `conv` WHERE `id` = %d AND `uid` = %d LIMIT 1",
4048 intval($item["convid"]),
4049 intval($item["uid"])
4052 if (!DBM::is_result($r)) {
4053 logger("conversation not found.");
4059 "author" => $cnv["creator"],
4060 "guid" => $cnv["guid"],
4061 "subject" => $cnv["subject"],
4062 "created_at" => DateTimeFormat::utc($cnv['created'], DateTimeFormat::ATOM),
4063 "participants" => $cnv["recips"]
4066 $body = bb2diaspora($item["body"]);
4067 $created = DateTimeFormat::utc($item["created"], DateTimeFormat::ATOM);
4070 "author" => $myaddr,
4071 "guid" => $item["guid"],
4072 "conversation_guid" => $cnv["guid"],
4074 "created_at" => $created,
4077 if ($item["reply"]) {
4082 "author" => $cnv["creator"],
4083 "guid" => $cnv["guid"],
4084 "subject" => $cnv["subject"],
4085 "created_at" => DateTimeFormat::utc($cnv['created'], DateTimeFormat::ATOM),
4086 "participants" => $cnv["recips"],
4089 $type = "conversation";
4092 return self::buildAndTransmit($owner, $contact, $type, $message, false, $item["guid"]);
4096 * @brief Split a name into first name and last name
4098 * @param string $name The name
4100 * @return array The array with "first" and "last"
4102 public static function splitName($name) {
4103 $name = trim($name);
4105 // Is the name longer than 64 characters? Then cut the rest of it.
4106 if (strlen($name) > 64) {
4107 if ((strpos($name, ' ') <= 64) && (strpos($name, ' ') !== false)) {
4108 $name = trim(substr($name, 0, strrpos(substr($name, 0, 65), ' ')));
4110 $name = substr($name, 0, 64);
4114 // Take the first word as first name
4115 $first = ((strpos($name, ' ') ? trim(substr($name, 0, strpos($name, ' '))) : $name));
4116 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4117 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4118 return ['first' => $first, 'last' => $last];
4121 // Take the last word as last name
4122 $first = ((strrpos($name, ' ') ? trim(substr($name, 0, strrpos($name, ' '))) : $name));
4123 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4125 if ((strlen($first) < 32) && (strlen($last) < 32)) {
4126 return ['first' => $first, 'last' => $last];
4129 // Take the first 32 characters if there is no space in the first 32 characters
4130 if ((strpos($name, ' ') > 32) || (strpos($name, ' ') === false)) {
4131 $first = substr($name, 0, 32);
4132 $last = substr($name, 32);
4133 return ['first' => $first, 'last' => $last];
4136 $first = trim(substr($name, 0, strrpos(substr($name, 0, 33), ' ')));
4137 $last = (($first === $name) ? '' : trim(substr($name, strlen($first))));
4139 // Check if the last name is longer than 32 characters
4140 if (strlen($last) > 32) {
4141 if (strpos($last, ' ') <= 32) {
4142 $last = trim(substr($last, 0, strrpos(substr($last, 0, 33), ' ')));
4144 $last = substr($last, 0, 32);
4148 return ['first' => $first, 'last' => $last];
4152 * @brief Create profile data
4154 * @param int $uid The user id
4156 * @return array The profile data
4158 private static function createProfileData($uid)
4161 "SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.*, `user`.`prvkey` AS `uprvkey`, `contact`.`addr`
4163 INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
4164 INNER JOIN `contact` ON `profile`.`uid` = `contact`.`uid`
4165 WHERE `user`.`uid` = %d AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
4174 $handle = $profile["addr"];
4176 $split_name = self::splitName($profile['name']);
4177 $first = $split_name['first'];
4178 $last = $split_name['last'];
4180 $large = System::baseUrl().'/photo/custom/300/'.$profile['uid'].'.jpg';
4181 $medium = System::baseUrl().'/photo/custom/100/'.$profile['uid'].'.jpg';
4182 $small = System::baseUrl().'/photo/custom/50/' .$profile['uid'].'.jpg';
4183 $searchable = (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false');
4189 if ($searchable === 'true') {
4192 if ($profile['dob'] && ($profile['dob'] > '0000-00-00')) {
4193 list($year, $month, $day) = sscanf($profile['dob'], '%4d-%2d-%2d');
4197 $dob = DateTimeFormat::utc($year . '-' . $month . '-'. $day, 'Y-m-d');
4200 $about = $profile['about'];
4201 $about = strip_tags(BBCode::convert($about));
4203 $location = Profile::formatLocation($profile);
4205 if ($profile['pub_keywords']) {
4206 $kw = str_replace(',', ' ', $profile['pub_keywords']);
4207 $kw = str_replace(' ', ' ', $kw);
4208 $arr = explode(' ', $profile['pub_keywords']);
4210 for ($x = 0; $x < 5; $x ++) {
4211 if (trim($arr[$x])) {
4212 $tags .= '#'. trim($arr[$x]) .' ';
4217 $tags = trim($tags);
4220 return ["author" => $handle,
4221 "first_name" => $first,
4222 "last_name" => $last,
4223 "image_url" => $large,
4224 "image_url_medium" => $medium,
4225 "image_url_small" => $small,
4227 "gender" => $profile['gender'],
4229 "location" => $location,
4230 "searchable" => $searchable,
4232 "tag_string" => $tags];
4236 * @brief Sends profile data
4238 * @param int $uid The user id
4239 * @param bool $recips optional, default false
4242 public static function sendProfile($uid, $recips = false)
4248 $owner = User::getOwnerDataById($uid);
4255 "SELECT `id`,`name`,`network`,`pubkey`,`notify` FROM `contact` WHERE `network` = '%s'
4256 AND `uid` = %d AND `rel` != %d",
4257 dbesc(NETWORK_DIASPORA),
4259 intval(CONTACT_IS_SHARING)
4267 $message = self::createProfileData($uid);
4269 foreach ($recips as $recip) {
4270 logger("Send updated profile data for user ".$uid." to contact ".$recip["id"], LOGGER_DEBUG);
4271 self::buildAndTransmit($owner, $recip, "profile", $message, false, "", false);
4276 * @brief Stores the signature for likes that are created on our system
4278 * @param array $contact The contact array of the "like"
4279 * @param int $post_id The post id of the "like"
4281 * @return bool Success
4283 public static function storeLikeSignature($contact, $post_id)
4285 // Is the contact the owner? Then fetch the private key
4286 if (!$contact['self'] || ($contact['uid'] == 0)) {
4287 logger("No owner post, so not storing signature", LOGGER_DEBUG);
4291 $r = q("SELECT `prvkey` FROM `user` WHERE `uid` = %d LIMIT 1", intval($contact['uid']));
4292 if (!DBM::is_result($r)) {
4296 $contact["uprvkey"] = $r[0]['prvkey'];
4298 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1", intval($post_id));
4299 if (!DBM::is_result($r)) {
4303 if (!in_array($r[0]["verb"], [ACTIVITY_LIKE, ACTIVITY_DISLIKE])) {
4307 $message = self::constructLike($r[0], $contact);
4308 if ($message === false) {
4312 $message["author_signature"] = self::signature($contact, $message);
4315 * Now store the signature more flexible to dynamically support new fields.
4316 * This will break Diaspora compatibility with Friendica versions prior to 3.5.
4318 dba::insert('sign', ['iid' => $post_id, 'signed_text' => json_encode($message)]);
4320 logger('Stored diaspora like signature');
4325 * @brief Stores the signature for comments that are created on our system
4327 * @param array $item The item array of the comment
4328 * @param array $contact The contact array of the item owner
4329 * @param string $uprvkey The private key of the sender
4330 * @param int $message_id The message id of the comment
4332 * @return bool Success
4334 public static function storeCommentSignature($item, $contact, $uprvkey, $message_id)
4336 if ($uprvkey == "") {
4337 logger('No private key, so not storing comment signature', LOGGER_DEBUG);
4341 $contact["uprvkey"] = $uprvkey;
4343 $message = self::constructComment($item, $contact);
4344 if ($message === false) {
4348 $message["author_signature"] = self::signature($contact, $message);
4351 * Now store the signature more flexible to dynamically support new fields.
4352 * This will break Diaspora compatibility with Friendica versions prior to 3.5.
4354 dba::insert('sign', ['iid' => $message_id, 'signed_text' => json_encode($message)]);
4356 logger('Stored diaspora comment signature');