3 require_once('include/crypto.php');
4 require_once('include/items.php');
5 require_once('include/bb2diaspora.php');
6 require_once('include/contact_selectors.php');
7 require_once('include/queue_fn.php');
8 require_once('include/lock.php');
11 function diaspora_dispatch_public($msg) {
13 $enabled = intval(get_config('system','diaspora_enabled'));
15 logger('mod-diaspora: disabled');
19 $r = q("SELECT `user`.* FROM `user` WHERE `user`.`uid` IN ( SELECT `contact`.`uid` FROM `contact` WHERE `contact`.`network` = '%s' AND `contact`.`addr` = '%s' ) AND `account_expired` = 0 AND `account_removed` = 0 ",
20 dbesc(NETWORK_DIASPORA),
25 logger('diaspora_public: delivering to: ' . $rr['username']);
26 diaspora_dispatch($rr,$msg);
30 logger('diaspora_public: no subscribers');
35 function diaspora_dispatch($importer,$msg) {
39 $enabled = intval(get_config('system','diaspora_enabled'));
41 logger('mod-diaspora: disabled');
45 // php doesn't like dashes in variable names
47 $msg['message'] = str_replace(
48 array('<activity_streams-photo>','</activity_streams-photo>'),
49 array('<asphoto>','</asphoto>'),
53 $parsed_xml = parse_xml_string($msg['message'],false);
55 $xmlbase = $parsed_xml->post;
57 logger('diaspora_dispatch: ' . print_r($xmlbase,true), LOGGER_DEBUG);
60 if($xmlbase->request) {
61 $ret = diaspora_request($importer,$xmlbase->request);
63 elseif($xmlbase->status_message) {
64 $ret = diaspora_post($importer,$xmlbase->status_message,$msg);
66 elseif($xmlbase->profile) {
67 $ret = diaspora_profile($importer,$xmlbase->profile,$msg);
69 elseif($xmlbase->comment) {
70 $ret = diaspora_comment($importer,$xmlbase->comment,$msg);
72 elseif($xmlbase->like) {
73 $ret = diaspora_like($importer,$xmlbase->like,$msg);
75 elseif($xmlbase->asphoto) {
76 $ret = diaspora_asphoto($importer,$xmlbase->asphoto,$msg);
78 elseif($xmlbase->reshare) {
79 $ret = diaspora_reshare($importer,$xmlbase->reshare,$msg);
81 elseif($xmlbase->retraction) {
82 $ret = diaspora_retraction($importer,$xmlbase->retraction,$msg);
84 elseif($xmlbase->signed_retraction) {
85 $ret = diaspora_signed_retraction($importer,$xmlbase->signed_retraction,$msg);
87 elseif($xmlbase->relayable_retraction) {
88 $ret = diaspora_signed_retraction($importer,$xmlbase->relayable_retraction,$msg);
90 elseif($xmlbase->photo) {
91 $ret = diaspora_photo($importer,$xmlbase->photo,$msg);
93 elseif($xmlbase->conversation) {
94 $ret = diaspora_conversation($importer,$xmlbase->conversation,$msg);
96 elseif($xmlbase->message) {
97 $ret = diaspora_message($importer,$xmlbase->message,$msg);
100 logger('diaspora_dispatch: unknown message type: ' . print_r($xmlbase,true));
105 function diaspora_handle_from_contact($contact_id) {
108 logger("diaspora_handle_from_contact: contact id is " . $contact_id, LOGGER_DEBUG);
110 $r = q("SELECT network, addr, self, url, nick FROM contact WHERE id = %d",
116 logger("diaspora_handle_from_contact: contact 'self' = " . $contact['self'] . " 'url' = " . $contact['url'], LOGGER_DEBUG);
118 if($contact['network'] === NETWORK_DIASPORA) {
119 $handle = $contact['addr'];
121 // logger("diaspora_handle_from_contact: contact id is a Diaspora person, handle = " . $handle, LOGGER_DEBUG);
123 elseif(($contact['network'] === NETWORK_DFRN) || ($contact['self'] == 1)) {
124 $baseurl_start = strpos($contact['url'],'://') + 3;
125 $baseurl_length = strpos($contact['url'],'/profile') - $baseurl_start; // allows installations in a subdirectory--not sure how Diaspora will handle
126 $baseurl = substr($contact['url'], $baseurl_start, $baseurl_length);
127 $handle = $contact['nick'] . '@' . $baseurl;
129 // logger("diaspora_handle_from_contact: contact id is a DFRN person, handle = " . $handle, LOGGER_DEBUG);
136 function diaspora_get_contact_by_handle($uid,$handle) {
137 $r = q("SELECT * FROM `contact` WHERE `network` = '%s' AND `uid` = %d AND `addr` = '%s' LIMIT 1",
138 dbesc(NETWORK_DIASPORA),
145 $handle_parts = explode("@", $handle);
146 $nurl_sql = '%%://' . $handle_parts[1] . '%%/profile/' . $handle_parts[0];
147 $r = q("SELECT * FROM contact WHERE network = '%s' AND uid = %d AND nurl LIKE '%s' LIMIT 1",
158 function find_diaspora_person_by_handle($handle) {
168 $r = q("select * from fcontact where network = '%s' and addr = '%s' limit 1",
169 dbesc(NETWORK_DIASPORA),
174 logger('find_diaspora_person_by handle: in cache ' . print_r($r,true), LOGGER_DEBUG);
176 // update record occasionally so it doesn't get stale
177 $d = strtotime($person['updated'] . ' +00:00');
178 if($d < strtotime('now - 14 days'))
183 // FETCHING PERSON INFORMATION FROM REMOTE SERVER
185 // If the person isn't in our 'fcontact' table, or if he/she is but
186 // his/her information hasn't been updated for more than 14 days, then
187 // we want to fetch the person's information from the remote server.
189 // Note that $person isn't changed by this block of code unless the
190 // person's information has been successfully fetched from the remote
191 // server. So if $person was 'false' to begin with (because he/she wasn't
192 // in the local cache), it'll stay false, and if $person held the local
193 // cache information to begin with, it'll keep that information. That way
194 // if there's a problem with the remote fetch, we can at least use our
195 // cached information--it's better than nothing.
197 if((! $person) || ($update)) {
198 // Lock the function to prevent race conditions if multiple items
199 // come in at the same time from a person who doesn't exist in
202 // Don't loop forever. On the last loop, try to create the contact
203 // whether the function is locked or not. Maybe the locking thread
204 // has died or something. At any rate, a duplicate in 'fcontact'
205 // is a much smaller problem than a deadlocked thread
206 $got_lock = lock_function('find_diaspora_person_by_handle', false);
207 if(($endlessloop + 1) >= $maxloops)
211 logger('find_diaspora_person_by_handle: create or refresh', LOGGER_DEBUG);
212 require_once('include/Scrape.php');
213 $r = probe_url($handle, PROBE_DIASPORA);
215 // Note that Friendica contacts can return a "Diaspora person"
216 // if Diaspora connectivity is enabled on their server
217 if((count($r)) && ($r['network'] === NETWORK_DIASPORA)) {
218 add_fcontact($r,$update);
222 unlock_function('find_diaspora_person_by_handle');
225 logger('find_diaspora_person_by_handle: couldn\'t lock function', LOGGER_DEBUG);
227 block_on_function_lock('find_diaspora_person_by_handle');
230 } while((! $person) && (! $got_lock) && (++$endlessloop < $maxloops));
231 // We need to try again if the person wasn't in 'fcontact' but the function was locked.
232 // The fact that the function was locked may mean that another process was creating the
233 // person's record. It could also mean another process was creating or updating an unrelated
236 // At any rate, we need to keep trying until we've either got the person or had a chance to
237 // try to fetch his/her remote information. But we don't want to block on locking the
238 // function, because if the other process is creating the record, then when we acquire the lock
239 // we'll dive right into creating another, duplicate record. We DO want to at least wait
240 // until the lock is released, so we don't flood the database with requests.
242 // If the person was in the 'fcontact' table, don't try again. It's not worth the time, since
243 // we do have some information for the person
249 function get_diaspora_key($uri) {
250 logger('Fetching diaspora key for: ' . $uri);
252 $r = find_diaspora_person_by_handle($uri);
259 function diaspora_pubmsg_build($msg,$user,$contact,$prvkey,$pubkey) {
262 logger('diaspora_pubmsg_build: ' . $msg, LOGGER_DATA);
265 $handle = $user['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
267 // $b64_data = base64_encode($msg);
268 // $b64url_data = base64url_encode($b64_data);
270 $b64url_data = base64url_encode($msg);
272 $data = str_replace(array("\n","\r"," ","\t"),array('','','',''),$b64url_data);
274 $type = 'application/xml';
275 $encoding = 'base64url';
278 $signable_data = $data . '.' . base64url_encode($type) . '.'
279 . base64url_encode($encoding) . '.' . base64url_encode($alg) ;
281 $signature = rsa_sign($signable_data,$prvkey);
282 $sig = base64url_encode($signature);
285 <?xml version='1.0' encoding='UTF-8'?>
286 <diaspora xmlns="https://joindiaspora.com/protocol" xmlns:me="http://salmon-protocol.org/ns/magic-env" >
288 <author_id>$handle</author_id>
291 <me:encoding>base64url</me:encoding>
292 <me:alg>RSA-SHA256</me:alg>
293 <me:data type="application/xml">$data</me:data>
294 <me:sig>$sig</me:sig>
299 logger('diaspora_pubmsg_build: magic_env: ' . $magic_env, LOGGER_DATA);
307 function diaspora_msg_build($msg,$user,$contact,$prvkey,$pubkey,$public = false) {
311 return diaspora_pubmsg_build($msg,$user,$contact,$prvkey,$pubkey);
313 logger('diaspora_msg_build: ' . $msg, LOGGER_DATA);
315 // without a public key nothing will work
318 logger('diaspora_msg_build: pubkey missing: contact id: ' . $contact['id']);
322 $inner_aes_key = random_string(32);
323 $b_inner_aes_key = base64_encode($inner_aes_key);
324 $inner_iv = random_string(16);
325 $b_inner_iv = base64_encode($inner_iv);
327 $outer_aes_key = random_string(32);
328 $b_outer_aes_key = base64_encode($outer_aes_key);
329 $outer_iv = random_string(16);
330 $b_outer_iv = base64_encode($outer_iv);
332 $handle = $user['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
334 $padded_data = pkcs5_pad($msg,16);
335 $inner_encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $padded_data, MCRYPT_MODE_CBC, $inner_iv);
337 $b64_data = base64_encode($inner_encrypted);
340 $b64url_data = base64url_encode($b64_data);
341 $data = str_replace(array("\n","\r"," ","\t"),array('','','',''),$b64url_data);
343 $type = 'application/xml';
344 $encoding = 'base64url';
347 $signable_data = $data . '.' . base64url_encode($type) . '.'
348 . base64url_encode($encoding) . '.' . base64url_encode($alg) ;
350 $signature = rsa_sign($signable_data,$prvkey);
351 $sig = base64url_encode($signature);
353 $decrypted_header = <<< EOT
356 <aes_key>$b_inner_aes_key</aes_key>
357 <author_id>$handle</author_id>
361 $decrypted_header = pkcs5_pad($decrypted_header,16);
363 $ciphertext = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $outer_aes_key, $decrypted_header, MCRYPT_MODE_CBC, $outer_iv);
365 $outer_json = json_encode(array('iv' => $b_outer_iv,'key' => $b_outer_aes_key));
367 $encrypted_outer_key_bundle = '';
368 openssl_public_encrypt($outer_json,$encrypted_outer_key_bundle,$pubkey);
370 $b64_encrypted_outer_key_bundle = base64_encode($encrypted_outer_key_bundle);
372 logger('outer_bundle: ' . $b64_encrypted_outer_key_bundle . ' key: ' . $pubkey, LOGGER_DATA);
374 $encrypted_header_json_object = json_encode(array('aes_key' => base64_encode($encrypted_outer_key_bundle),
375 'ciphertext' => base64_encode($ciphertext)));
376 $cipher_json = base64_encode($encrypted_header_json_object);
378 $encrypted_header = '<encrypted_header>' . $cipher_json . '</encrypted_header>';
381 <?xml version='1.0' encoding='UTF-8'?>
382 <diaspora xmlns="https://joindiaspora.com/protocol" xmlns:me="http://salmon-protocol.org/ns/magic-env" >
385 <me:encoding>base64url</me:encoding>
386 <me:alg>RSA-SHA256</me:alg>
387 <me:data type="application/xml">$data</me:data>
388 <me:sig>$sig</me:sig>
393 logger('diaspora_msg_build: magic_env: ' . $magic_env, LOGGER_DATA);
400 * diaspora_decode($importer,$xml)
401 * array $importer -> from user table
402 * string $xml -> urldecoded Diaspora salmon
405 * 'message' -> decoded Diaspora XML message
406 * 'author' -> author diaspora handle
407 * 'key' -> author public key (converted to pkcs#8)
409 * Author and key are used elsewhere to save a lookup for verifying replies and likes
413 function diaspora_decode($importer,$xml) {
416 $basedom = parse_xml_string($xml);
418 $children = $basedom->children('https://joindiaspora.com/protocol');
420 if($children->header) {
422 $author_link = str_replace('acct:','',$children->header->author_id);
426 $encrypted_header = json_decode(base64_decode($children->encrypted_header));
428 $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
429 $ciphertext = base64_decode($encrypted_header->ciphertext);
431 $outer_key_bundle = '';
432 openssl_private_decrypt($encrypted_aes_key_bundle,$outer_key_bundle,$importer['prvkey']);
434 $j_outer_key_bundle = json_decode($outer_key_bundle);
436 $outer_iv = base64_decode($j_outer_key_bundle->iv);
437 $outer_key = base64_decode($j_outer_key_bundle->key);
439 $decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $outer_key, $ciphertext, MCRYPT_MODE_CBC, $outer_iv);
442 $decrypted = pkcs5_unpad($decrypted);
445 * $decrypted now contains something like
448 * <iv>8e+G2+ET8l5BPuW0sVTnQw==</iv>
449 * <aes_key>UvSMb4puPeB14STkcDWq+4QE302Edu15oaprAQSkLKU=</aes_key>
454 * <name>Ryan Hughes</name>
455 * <uri>acct:galaxor@diaspora.pirateship.org</uri>
460 * <author_id>galaxor@diaspora.priateship.org</author_id>
464 * </decrypted_header>
467 logger('decrypted: ' . $decrypted, LOGGER_DEBUG);
468 $idom = parse_xml_string($decrypted,false);
470 $inner_iv = base64_decode($idom->iv);
471 $inner_aes_key = base64_decode($idom->aes_key);
473 $author_link = str_replace('acct:','',$idom->author_id);
477 $dom = $basedom->children(NAMESPACE_SALMON_ME);
479 // figure out where in the DOM tree our data is hiding
481 if($dom->provenance->data)
482 $base = $dom->provenance;
483 elseif($dom->env->data)
489 logger('mod-diaspora: unable to locate salmon data in xml ');
490 http_status_exit(400);
494 // Stash the signature away for now. We have to find their key or it won't be good for anything.
495 $signature = base64url_decode($base->sig);
499 // strip whitespace so our data element will return to one big base64 blob
500 $data = str_replace(array(" ","\t","\r","\n"),array("","","",""),$base->data);
503 // stash away some other stuff for later
505 $type = $base->data[0]->attributes()->type[0];
506 $keyhash = $base->sig[0]->attributes()->keyhash[0];
507 $encoding = $base->encoding;
511 $signed_data = $data . '.' . base64url_encode($type) . '.' . base64url_encode($encoding) . '.' . base64url_encode($alg);
515 $data = base64url_decode($data);
519 $inner_decrypted = $data;
523 // Decode the encrypted blob
525 $inner_encrypted = base64_decode($data);
526 $inner_decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $inner_encrypted, MCRYPT_MODE_CBC, $inner_iv);
527 $inner_decrypted = pkcs5_unpad($inner_decrypted);
531 logger('mod-diaspora: Could not retrieve author URI.');
532 http_status_exit(400);
535 // Once we have the author URI, go to the web and try to find their public key
536 // (first this will look it up locally if it is in the fcontact cache)
537 // This will also convert diaspora public key from pkcs#1 to pkcs#8
539 logger('mod-diaspora: Fetching key for ' . $author_link );
540 $key = get_diaspora_key($author_link);
543 logger('mod-diaspora: Could not retrieve author key.');
544 http_status_exit(400);
547 $verify = rsa_verify($signed_data,$signature,$key);
550 logger('mod-diaspora: Message did not verify. Discarding.');
551 http_status_exit(400);
554 logger('mod-diaspora: Message verified.');
556 return array('message' => $inner_decrypted, 'author' => $author_link, 'key' => $key);
561 function diaspora_request($importer,$xml) {
565 $sender_handle = unxmlify($xml->sender_handle);
566 $recipient_handle = unxmlify($xml->recipient_handle);
568 if(! $sender_handle || ! $recipient_handle)
571 $contact = diaspora_get_contact_by_handle($importer['uid'],$sender_handle);
575 // perhaps we were already sharing with this person. Now they're sharing with us.
576 // That makes us friends.
578 if($contact['rel'] == CONTACT_IS_FOLLOWER && $importer['page-flags'] != PAGE_COMMUNITY) {
579 q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
580 intval(CONTACT_IS_FRIEND),
581 intval($contact['id']),
582 intval($importer['uid'])
587 $r = q("SELECT `hide-friends` FROM `profile` WHERE `uid` = %d AND `is-default` = 1 LIMIT 1",
588 intval($importer['uid'])
591 if((count($r)) && (! $r[0]['hide-friends']) && (! $contact['hidden'])) {
592 require_once('include/items.php');
594 $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
595 intval($importer['uid'])
598 // they are not CONTACT_IS_FOLLOWER anymore but that's what we have in the array
600 if(count($self) && $contact['rel'] == CONTACT_IS_FOLLOWER) {
603 $arr['uri'] = $arr['parent-uri'] = item_new_uri($a->get_hostname(), $importer['uid']);
604 $arr['uid'] = $importer['uid'];
605 $arr['contact-id'] = $self[0]['id'];
607 $arr['type'] = 'wall';
610 $arr['author-name'] = $arr['owner-name'] = $self[0]['name'];
611 $arr['author-link'] = $arr['owner-link'] = $self[0]['url'];
612 $arr['author-avatar'] = $arr['owner-avatar'] = $self[0]['thumb'];
613 $arr['verb'] = ACTIVITY_FRIEND;
614 $arr['object-type'] = ACTIVITY_OBJ_PERSON;
616 $A = '[url=' . $self[0]['url'] . ']' . $self[0]['name'] . '[/url]';
617 $B = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
618 $BPhoto = '[url=' . $contact['url'] . ']' . '[img]' . $contact['thumb'] . '[/img][/url]';
619 $arr['body'] = sprintf( t('%1$s is now friends with %2$s'), $A, $B)."\n\n\n".$Bphoto;
621 $arr['object'] = '<object><type>' . ACTIVITY_OBJ_PERSON . '</type><title>' . $contact['name'] . '</title>'
622 . '<id>' . $contact['url'] . '/' . $contact['name'] . '</id>';
623 $arr['object'] .= '<link>' . xmlify('<link rel="alternate" type="text/html" href="' . $contact['url'] . '" />' . "\n");
624 $arr['object'] .= xmlify('<link rel="photo" type="image/jpeg" href="' . $contact['thumb'] . '" />' . "\n");
625 $arr['object'] .= '</link></object>' . "\n";
626 $arr['last-child'] = 1;
628 $arr['allow_cid'] = $user[0]['allow_cid'];
629 $arr['allow_gid'] = $user[0]['allow_gid'];
630 $arr['deny_cid'] = $user[0]['deny_cid'];
631 $arr['deny_gid'] = $user[0]['deny_gid'];
633 $i = item_store($arr);
635 proc_run('php',"include/notifier.php","activity","$i");
644 $ret = find_diaspora_person_by_handle($sender_handle);
647 if((! count($ret)) || ($ret['network'] != NETWORK_DIASPORA)) {
648 logger('diaspora_request: Cannot resolve diaspora handle ' . $sender_handle . ' for ' . $recipient_handle);
652 $batch = (($ret['batch']) ? $ret['batch'] : implode('/', array_slice(explode('/',$ret['url']),0,3)) . '/receive/public');
656 $r = q("INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`nurl`,`batch`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
657 VALUES ( %d, '%s', '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s','%s',%d,%d) ",
658 intval($importer['uid']),
659 dbesc($ret['network']),
663 dbesc(normalise_link($ret['url'])),
667 dbesc($ret['photo']),
668 dbesc($ret['pubkey']),
669 dbesc($ret['notify']),
675 // find the contact record we just created
677 $contact_record = diaspora_get_contact_by_handle($importer['uid'],$sender_handle);
679 if(! $contact_record) {
680 logger('diaspora_request: unable to locate newly created contact record.');
684 $g = q("select def_gid from user where uid = %d limit 1",
685 intval($importer['uid'])
687 if($g && intval($g[0]['def_gid'])) {
688 require_once('include/group.php');
689 group_add_member($importer['uid'],'',$contact_record['id'],$g[0]['def_gid']);
692 if($importer['page-flags'] == PAGE_NORMAL) {
694 $hash = random_string() . (string) time(); // Generate a confirm_key
696 $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime` )
697 VALUES ( %d, %d, %d, %d, '%s', '%s', '%s' )",
698 intval($importer['uid']),
699 intval($contact_record['id']),
702 dbesc( t('Sharing notification from Diaspora network')),
704 dbesc(datetime_convert())
709 // automatic friend approval
711 require_once('include/Photo.php');
713 $photos = import_profile_photo($contact_record['photo'],$importer['uid'],$contact_record['id']);
715 // technically they are sharing with us (CONTACT_IS_SHARING),
716 // but if our page-type is PAGE_COMMUNITY or PAGE_SOAPBOX
717 // we are going to change the relationship and make them a follower.
719 if($importer['page-flags'] == PAGE_FREELOVE)
720 $new_relation = CONTACT_IS_FRIEND;
722 $new_relation = CONTACT_IS_FOLLOWER;
724 $r = q("UPDATE `contact` SET
731 `avatar-date` = '%s',
734 WHERE `id` = %d LIMIT 1
739 intval($new_relation),
740 dbesc(datetime_convert()),
741 dbesc(datetime_convert()),
742 dbesc(datetime_convert()),
743 intval($contact_record['id'])
746 $u = q("select * from user where uid = %d limit 1",intval($importer['uid']));
748 $ret = diaspora_share($u[0],$contact_record);
754 function diaspora_post_allow($importer,$contact) {
755 if(($contact['blocked']) || ($contact['readonly']))
757 if($contact['rel'] == CONTACT_IS_SHARING || $contact['rel'] == CONTACT_IS_FRIEND)
759 if($contact['rel'] == CONTACT_IS_FOLLOWER)
760 if($importer['page-flags'] == PAGE_COMMUNITY)
766 function diaspora_post($importer,$xml,$msg) {
769 $guid = notags(unxmlify($xml->guid));
770 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
772 if($diaspora_handle != $msg['author']) {
773 logger('diaspora_post: Potential forgery. Message handle is not the same as envelope sender.');
777 $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
781 if(! diaspora_post_allow($importer,$contact)) {
782 logger('diaspora_post: Ignoring this author.');
786 $message_id = $diaspora_handle . ':' . $guid;
787 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `guid` = '%s' LIMIT 1",
788 intval($importer['uid']),
793 logger('diaspora_post: message exists: ' . $guid);
797 // allocate a guid on our system - we aren't fixing any collisions.
798 // we're ignoring them
800 $g = q("select * from guid where guid = '%s' limit 1",
804 q("insert into guid ( guid ) values ( '%s' )",
809 $created = unxmlify($xml->created_at);
810 $private = ((unxmlify($xml->public) == 'false') ? 1 : 0);
812 $body = diaspora2bb($xml->raw_message);
818 $tags = get_tags($body);
821 foreach($tags as $tag) {
822 if(strpos($tag,'#') === 0) {
823 if(strpos($tag,'[url='))
826 // don't link tags that are already embedded in links
828 if(preg_match('/\[(.*?)' . preg_quote($tag,'/') . '(.*?)\]/',$body))
830 if(preg_match('/\[(.*?)\]\((.*?)' . preg_quote($tag,'/') . '(.*?)\)/',$body))
833 $basetag = str_replace('_',' ',substr($tag,1));
834 $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
835 if(strlen($str_tags))
837 $str_tags .= '#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
843 $cnt = preg_match_all('/@\[url=(.*?)\[\/url\]/ism',$body,$matches,PREG_SET_ORDER);
845 foreach($matches as $mtch) {
846 if(strlen($str_tags))
848 $str_tags .= '@[url=' . $mtch[1] . '[/url]';
852 $datarray['uid'] = $importer['uid'];
853 $datarray['contact-id'] = $contact['id'];
854 $datarray['wall'] = 0;
855 $datarray['guid'] = $guid;
856 $datarray['uri'] = $datarray['parent-uri'] = $message_id;
857 $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
858 $datarray['private'] = $private;
859 $datarray['parent'] = 0;
860 $datarray['owner-name'] = $contact['name'];
861 $datarray['owner-link'] = $contact['url'];
862 $datarray['owner-avatar'] = $contact['thumb'];
863 $datarray['author-name'] = $contact['name'];
864 $datarray['author-link'] = $contact['url'];
865 $datarray['author-avatar'] = $contact['thumb'];
866 $datarray['body'] = $body;
867 $datarray['tag'] = $str_tags;
868 $datarray['app'] = 'Diaspora';
870 // if empty content it might be a photo that hasn't arrived yet. If a photo arrives, we'll make it visible.
872 $datarray['visible'] = ((strlen($body)) ? 1 : 0);
874 $message_id = item_store($datarray);
877 q("update item set plink = '%s' where id = %d limit 1",
878 dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
887 function diaspora_reshare($importer,$xml,$msg) {
889 logger('diaspora_reshare: init: ' . print_r($xml,true));
892 $guid = notags(unxmlify($xml->guid));
893 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
896 if($diaspora_handle != $msg['author']) {
897 logger('diaspora_post: Potential forgery. Message handle is not the same as envelope sender.');
901 $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
905 if(! diaspora_post_allow($importer,$contact)) {
906 logger('diaspora_reshare: Ignoring this author: ' . $diaspora_handle . ' ' . print_r($xml,true));
910 $message_id = $diaspora_handle . ':' . $guid;
911 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `guid` = '%s' LIMIT 1",
912 intval($importer['uid']),
917 logger('diaspora_reshare: message exists: ' . $guid);
921 $orig_author = notags(unxmlify($xml->root_diaspora_id));
922 $orig_guid = notags(unxmlify($xml->root_guid));
924 $source_url = 'https://' . substr($orig_author,strpos($orig_author,'@')+1) . '/p/' . $orig_guid . '.xml';
925 $x = fetch_url($source_url);
927 $x = fetch_url(str_replace('https://','http://',$source_url));
929 logger('diaspora_reshare: unable to fetch source url ' . $source_url);
932 logger('diaspora_reshare: source: ' . $x);
934 $x = str_replace(array('<activity_streams-photo>','</activity_streams-photo>'),array('<asphoto>','</asphoto>'),$x);
935 $source_xml = parse_xml_string($x,false);
937 if(strlen($source_xml->post->asphoto->objectId) && ($source_xml->post->asphoto->objectId != 0) && ($source_xml->post->asphoto->image_url)) {
938 $body = '[url=' . notags(unxmlify($source_xml->post->asphoto->image_url)) . '][img]' . notags(unxmlify($source_xml->post->asphoto->objectId)) . '[/img][/url]' . "\n";
939 $body = scale_external_images($body,false);
941 elseif($source_xml->post->asphoto->image_url) {
942 $body = '[img]' . notags(unxmlify($source_xml->post->asphoto->image_url)) . '[/img]' . "\n";
943 $body = scale_external_images($body);
945 elseif($source_xml->post->status_message) {
946 $body = diaspora2bb($source_xml->post->status_message->raw_message);
947 $body = scale_external_images($body);
951 logger('diaspora_reshare: no reshare content found: ' . print_r($source_xml,true));
955 logger('diaspora_reshare: empty body: source= ' . $x);
959 $person = find_diaspora_person_by_handle($orig_author);
961 if(is_array($person) && x($person,'name') && x($person,'url'))
962 $details = '[url=' . $person['url'] . ']' . $person['name'] . '[/url]';
964 $details = $orig_author;
966 $prefix = html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . $details . "\n";
969 // allocate a guid on our system - we aren't fixing any collisions.
970 // we're ignoring them
972 $g = q("select * from guid where guid = '%s' limit 1",
976 q("insert into guid ( guid ) values ( '%s' )",
981 $created = unxmlify($xml->created_at);
982 $private = ((unxmlify($xml->public) == 'false') ? 1 : 0);
988 $tags = get_tags($body);
991 foreach($tags as $tag) {
992 if(strpos($tag,'#') === 0) {
993 if(strpos($tag,'[url='))
996 // don't link tags that are already embedded in links
998 if(preg_match('/\[(.*?)' . preg_quote($tag,'/') . '(.*?)\]/',$body))
1000 if(preg_match('/\[(.*?)\]\((.*?)' . preg_quote($tag,'/') . '(.*?)\)/',$body))
1004 $basetag = str_replace('_',' ',substr($tag,1));
1005 $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
1006 if(strlen($str_tags))
1008 $str_tags .= '#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
1014 $datarray['uid'] = $importer['uid'];
1015 $datarray['contact-id'] = $contact['id'];
1016 $datarray['wall'] = 0;
1017 $datarray['guid'] = $guid;
1018 $datarray['uri'] = $datarray['parent-uri'] = $message_id;
1019 $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
1020 $datarray['private'] = $private;
1021 $datarray['parent'] = 0;
1022 $datarray['owner-name'] = $contact['name'];
1023 $datarray['owner-link'] = $contact['url'];
1024 $datarray['owner-avatar'] = $contact['thumb'];
1025 $datarray['author-name'] = $contact['name'];
1026 $datarray['author-link'] = $contact['url'];
1027 $datarray['author-avatar'] = $contact['thumb'];
1028 $datarray['body'] = $prefix . $body;
1029 $datarray['tag'] = $str_tags;
1030 $datarray['app'] = 'Diaspora';
1032 $message_id = item_store($datarray);
1035 q("update item set plink = '%s' where id = %d limit 1",
1036 dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
1046 function diaspora_asphoto($importer,$xml,$msg) {
1047 logger('diaspora_asphoto called');
1050 $guid = notags(unxmlify($xml->guid));
1051 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
1053 if($diaspora_handle != $msg['author']) {
1054 logger('diaspora_post: Potential forgery. Message handle is not the same as envelope sender.');
1058 $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
1062 if(! diaspora_post_allow($importer,$contact)) {
1063 logger('diaspora_asphoto: Ignoring this author.');
1067 $message_id = $diaspora_handle . ':' . $guid;
1068 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `guid` = '%s' LIMIT 1",
1069 intval($importer['uid']),
1074 logger('diaspora_asphoto: message exists: ' . $guid);
1078 // allocate a guid on our system - we aren't fixing any collisions.
1079 // we're ignoring them
1081 $g = q("select * from guid where guid = '%s' limit 1",
1085 q("insert into guid ( guid ) values ( '%s' )",
1090 $created = unxmlify($xml->created_at);
1091 $private = ((unxmlify($xml->public) == 'false') ? 1 : 0);
1093 if(strlen($xml->objectId) && ($xml->objectId != 0) && ($xml->image_url)) {
1094 $body = '[url=' . notags(unxmlify($xml->image_url)) . '][img]' . notags(unxmlify($xml->objectId)) . '[/img][/url]' . "\n";
1095 $body = scale_external_images($body,false);
1097 elseif($xml->image_url) {
1098 $body = '[img]' . notags(unxmlify($xml->image_url)) . '[/img]' . "\n";
1099 $body = scale_external_images($body);
1102 logger('diaspora_asphoto: no photo url found.');
1106 $datarray = array();
1109 $datarray['uid'] = $importer['uid'];
1110 $datarray['contact-id'] = $contact['id'];
1111 $datarray['wall'] = 0;
1112 $datarray['guid'] = $guid;
1113 $datarray['uri'] = $datarray['parent-uri'] = $message_id;
1114 $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
1115 $datarray['private'] = $private;
1116 $datarray['parent'] = 0;
1117 $datarray['owner-name'] = $contact['name'];
1118 $datarray['owner-link'] = $contact['url'];
1119 $datarray['owner-avatar'] = $contact['thumb'];
1120 $datarray['author-name'] = $contact['name'];
1121 $datarray['author-link'] = $contact['url'];
1122 $datarray['author-avatar'] = $contact['thumb'];
1123 $datarray['body'] = $body;
1125 $datarray['app'] = 'Diaspora/Cubbi.es';
1127 $message_id = item_store($datarray);
1130 q("update item set plink = '%s' where id = %d limit 1",
1131 dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
1145 function diaspora_comment($importer,$xml,$msg) {
1148 $guid = notags(unxmlify($xml->guid));
1149 $parent_guid = notags(unxmlify($xml->parent_guid));
1150 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
1151 $target_type = notags(unxmlify($xml->target_type));
1152 $text = unxmlify($xml->text);
1153 $author_signature = notags(unxmlify($xml->author_signature));
1155 $parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
1157 $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
1159 logger('diaspora_comment: cannot find contact: ' . $msg['author']);
1163 if(! diaspora_post_allow($importer,$contact)) {
1164 logger('diaspora_comment: Ignoring this author.');
1168 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1169 intval($importer['uid']),
1173 logger('diaspora_comment: our comment just got relayed back to us (or there was a guid collision) : ' . $guid);
1177 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1178 intval($importer['uid']),
1182 logger('diaspora_comment: parent item not found: parent: ' . $parent_guid . ' item: ' . $guid);
1185 $parent_item = $r[0];
1188 /* How Diaspora performs comment signature checking:
1190 - If an item has been sent by the comment author to the top-level post owner to relay on
1191 to the rest of the contacts on the top-level post, the top-level post owner should check
1192 the author_signature, then create a parent_author_signature before relaying the comment on
1193 - If an item has been relayed on by the top-level post owner, the contacts who receive it
1194 check only the parent_author_signature. Basically, they trust that the top-level post
1195 owner has already verified the authenticity of anything he/she sends out
1196 - In either case, the signature that get checked is the signature created by the person
1200 $signed_data = $guid . ';' . $parent_guid . ';' . $text . ';' . $diaspora_handle;
1203 if($parent_author_signature) {
1204 // If a parent_author_signature exists, then we've received the comment
1205 // relayed from the top-level post owner. There's no need to check the
1206 // author_signature if the parent_author_signature is valid
1208 $parent_author_signature = base64_decode($parent_author_signature);
1210 if(! rsa_verify($signed_data,$parent_author_signature,$key,'sha256')) {
1211 logger('diaspora_comment: top-level owner verification failed.');
1216 // If there's no parent_author_signature, then we've received the comment
1217 // from the comment creator. In that case, the person is commenting on
1218 // our post, so he/she must be a contact of ours and his/her public key
1219 // should be in $msg['key']
1221 $author_signature = base64_decode($author_signature);
1223 if(! rsa_verify($signed_data,$author_signature,$key,'sha256')) {
1224 logger('diaspora_comment: comment author verification failed.');
1229 // Phew! Everything checks out. Now create an item.
1231 // Find the original comment author information.
1232 // We need this to make sure we display the comment author
1233 // information (name and avatar) correctly.
1234 if(strcasecmp($diaspora_handle,$msg['author']) == 0)
1237 $person = find_diaspora_person_by_handle($diaspora_handle);
1239 if(! is_array($person)) {
1240 logger('diaspora_comment: unable to find author details');
1245 $body = diaspora2bb($text);
1247 $message_id = $diaspora_handle . ':' . $guid;
1249 $datarray = array();
1253 $tags = get_tags($body);
1256 foreach($tags as $tag) {
1257 if(strpos($tag,'#') === 0) {
1258 if(strpos($tag,'[url='))
1261 // don't link tags that are already embedded in links
1263 if(preg_match('/\[(.*?)' . preg_quote($tag,'/') . '(.*?)\]/',$body))
1265 if(preg_match('/\[(.*?)\]\((.*?)' . preg_quote($tag,'/') . '(.*?)\)/',$body))
1269 $basetag = str_replace('_',' ',substr($tag,1));
1270 $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
1271 if(strlen($str_tags))
1273 $str_tags .= '#[url=' . $a->get_baseurl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
1279 $datarray['uid'] = $importer['uid'];
1280 $datarray['contact-id'] = $contact['id'];
1281 $datarray['type'] = 'remote-comment';
1282 $datarray['wall'] = $parent_item['wall'];
1283 $datarray['gravity'] = GRAVITY_COMMENT;
1284 $datarray['guid'] = $guid;
1285 $datarray['uri'] = $message_id;
1286 $datarray['parent-uri'] = $parent_item['uri'];
1288 // No timestamps for comments? OK, we'll the use current time.
1289 $datarray['created'] = $datarray['edited'] = datetime_convert();
1290 $datarray['private'] = $parent_item['private'];
1292 $datarray['owner-name'] = $parent_item['owner-name'];
1293 $datarray['owner-link'] = $parent_item['owner-link'];
1294 $datarray['owner-avatar'] = $parent_item['owner-avatar'];
1296 $datarray['author-name'] = $person['name'];
1297 $datarray['author-link'] = $person['url'];
1298 $datarray['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']);
1299 $datarray['body'] = $body;
1300 $datarray['tag'] = $str_tags;
1302 // We can't be certain what the original app is if the message is relayed.
1303 if(($parent_item['origin']) && (! $parent_author_signature))
1304 $datarray['app'] = 'Diaspora';
1306 $message_id = item_store($datarray);
1309 q("update item set plink = '%s' where id = %d limit 1",
1310 dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
1315 if(($parent_item['origin']) && (! $parent_author_signature)) {
1316 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
1317 intval($message_id),
1318 dbesc($signed_data),
1319 dbesc(base64_encode($author_signature)),
1320 dbesc($diaspora_handle)
1323 // if the message isn't already being relayed, notify others
1324 // the existence of parent_author_signature means the parent_author or owner
1325 // is already relaying.
1327 proc_run('php','include/notifier.php','comment-import',$message_id);
1330 $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 AND `deleted` = 0 ",
1331 dbesc($parent_item['uri']),
1332 intval($importer['uid'])
1335 if(count($myconv)) {
1336 $importer_url = $a->get_baseurl() . '/profile/' . $importer['nickname'];
1338 foreach($myconv as $conv) {
1340 // now if we find a match, it means we're in this conversation
1342 if(! link_compare($conv['author-link'],$importer_url))
1345 require_once('include/enotify.php');
1347 $conv_parent = $conv['parent'];
1350 'type' => NOTIFY_COMMENT,
1351 'notify_flags' => $importer['notify-flags'],
1352 'language' => $importer['language'],
1353 'to_name' => $importer['username'],
1354 'to_email' => $importer['email'],
1355 'uid' => $importer['uid'],
1356 'item' => $datarray,
1357 'link' => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id,
1358 'source_name' => $datarray['author-name'],
1359 'source_link' => $datarray['author-link'],
1360 'source_photo' => $datarray['author-avatar'],
1361 'verb' => ACTIVITY_POST,
1363 'parent' => $conv_parent,
1364 'parent_uri' => $parent_uri
1367 // only send one notification
1377 function diaspora_conversation($importer,$xml,$msg) {
1381 $guid = notags(unxmlify($xml->guid));
1382 $subject = notags(unxmlify($xml->subject));
1383 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
1384 $participant_handles = notags(unxmlify($xml->participant_handles));
1385 $created_at = datetime_convert('UTC','UTC',notags(unxmlify($xml->created_at)));
1387 $parent_uri = $diaspora_handle . ':' . $guid;
1389 $messages = $xml->message;
1391 if(! count($messages)) {
1392 logger('diaspora_conversation: empty conversation');
1396 $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
1398 logger('diaspora_conversation: cannot find contact: ' . $msg['author']);
1402 if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
1403 logger('diaspora_conversation: Ignoring this author.');
1407 $conversation = null;
1409 $c = q("select * from conv where uid = %d and guid = '%s' limit 1",
1410 intval($importer['uid']),
1414 $conversation = $c[0];
1416 $r = q("insert into conv (uid,guid,creator,created,updated,subject,recips) values(%d, '%s', '%s', '%s', '%s', '%s', '%s') ",
1417 intval($importer['uid']),
1419 dbesc($diaspora_handle),
1420 dbesc(datetime_convert('UTC','UTC',$created_at)),
1421 dbesc(datetime_convert()),
1423 dbesc($participant_handles)
1426 $c = q("select * from conv where uid = %d and guid = '%s' limit 1",
1427 intval($importer['uid']),
1431 $conversation = $c[0];
1433 if(! $conversation) {
1434 logger('diaspora_conversation: unable to create conversation.');
1438 foreach($messages as $mesg) {
1442 $msg_guid = notags(unxmlify($mesg->guid));
1443 $msg_parent_guid = notags(unxmlify($mesg->parent_guid));
1444 $msg_parent_author_signature = notags(unxmlify($mesg->parent_author_signature));
1445 $msg_author_signature = notags(unxmlify($mesg->author_signature));
1446 $msg_text = unxmlify($mesg->text);
1447 $msg_created_at = datetime_convert('UTC','UTC',notags(unxmlify($mesg->created_at)));
1448 $msg_diaspora_handle = notags(unxmlify($mesg->diaspora_handle));
1449 $msg_conversation_guid = notags(unxmlify($mesg->conversation_guid));
1450 if($msg_conversation_guid != $guid) {
1451 logger('diaspora_conversation: message conversation guid does not belong to the current conversation. ' . $xml);
1455 $body = diaspora2bb($msg_text);
1456 $message_id = $msg_diaspora_handle . ':' . $msg_guid;
1458 $author_signed_data = $msg_guid . ';' . $msg_parent_guid . ';' . $msg_text . ';' . unxmlify($mesg->created_at) . ';' . $msg_diaspora_handle . ';' . $msg_conversation_guid;
1460 $author_signature = base64_decode($msg_author_signature);
1462 if(strcasecmp($msg_diaspora_handle,$msg['author']) == 0) {
1467 $person = find_diaspora_person_by_handle($msg_diaspora_handle);
1469 if(is_array($person) && x($person,'pubkey'))
1470 $key = $person['pubkey'];
1472 logger('diaspora_conversation: unable to find author details');
1477 if(! rsa_verify($author_signed_data,$author_signature,$key,'sha256')) {
1478 logger('diaspora_conversation: verification failed.');
1482 if($msg_parent_author_signature) {
1483 $owner_signed_data = $msg_guid . ';' . $msg_parent_guid . ';' . $msg_text . ';' . unxmlify($mesg->created_at) . ';' . $msg_diaspora_handle . ';' . $msg_conversation_guid;
1485 $parent_author_signature = base64_decode($msg_parent_author_signature);
1489 if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha256')) {
1490 logger('diaspora_conversation: owner verification failed.');
1495 $r = q("select id from mail where `uri` = '%s' limit 1",
1499 logger('diaspora_conversation: duplicate message already delivered.', LOGGER_DEBUG);
1503 q("insert into mail ( `uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`) values ( %d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
1504 intval($importer['uid']),
1506 intval($conversation['id']),
1507 dbesc($person['name']),
1508 dbesc($person['photo']),
1509 dbesc($person['url']),
1510 intval($contact['id']),
1517 dbesc($msg_created_at)
1520 q("update conv set updated = '%s' where id = %d limit 1",
1521 dbesc(datetime_convert()),
1522 intval($conversation['id'])
1525 require_once('include/enotify.php');
1527 'type' => NOTIFY_MAIL,
1528 'notify_flags' => $importer['notify-flags'],
1529 'language' => $importer['language'],
1530 'to_name' => $importer['username'],
1531 'to_email' => $importer['email'],
1532 'uid' =>$importer['importer_uid'],
1533 'item' => array('subject' => $subject, 'body' => $body),
1534 'source_name' => $person['name'],
1535 'source_link' => $person['url'],
1536 'source_photo' => $person['thumb'],
1537 'verb' => ACTIVITY_POST,
1545 function diaspora_message($importer,$xml,$msg) {
1549 $msg_guid = notags(unxmlify($xml->guid));
1550 $msg_parent_guid = notags(unxmlify($xml->parent_guid));
1551 $msg_parent_author_signature = notags(unxmlify($xml->parent_author_signature));
1552 $msg_author_signature = notags(unxmlify($xml->author_signature));
1553 $msg_text = unxmlify($xml->text);
1554 $msg_created_at = datetime_convert('UTC','UTC',notags(unxmlify($xml->created_at)));
1555 $msg_diaspora_handle = notags(unxmlify($xml->diaspora_handle));
1556 $msg_conversation_guid = notags(unxmlify($xml->conversation_guid));
1558 $parent_uri = $diaspora_handle . ':' . $msg_parent_guid;
1560 $contact = diaspora_get_contact_by_handle($importer['uid'],$msg_diaspora_handle);
1562 logger('diaspora_message: cannot find contact: ' . $msg_diaspora_handle);
1566 if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
1567 logger('diaspora_message: Ignoring this author.');
1571 $conversation = null;
1573 $c = q("select * from conv where uid = %d and guid = '%s' limit 1",
1574 intval($importer['uid']),
1575 dbesc($msg_conversation_guid)
1578 $conversation = $c[0];
1580 logger('diaspora_message: conversation not available.');
1586 $body = diaspora2bb($msg_text);
1587 $message_id = $msg_diaspora_handle . ':' . $msg_guid;
1589 $author_signed_data = $msg_guid . ';' . $msg_parent_guid . ';' . $msg_text . ';' . unxmlify($xml->created_at) . ';' . $msg_diaspora_handle . ';' . $msg_conversation_guid;
1592 $author_signature = base64_decode($msg_author_signature);
1594 $person = find_diaspora_person_by_handle($msg_diaspora_handle);
1595 if(is_array($person) && x($person,'pubkey'))
1596 $key = $person['pubkey'];
1598 logger('diaspora_message: unable to find author details');
1602 if(! rsa_verify($author_signed_data,$author_signature,$key,'sha256')) {
1603 logger('diaspora_message: verification failed.');
1607 $r = q("select id from mail where `uri` = '%s' and uid = %d limit 1",
1609 intval($importer['uid'])
1612 logger('diaspora_message: duplicate message already delivered.', LOGGER_DEBUG);
1616 q("insert into mail ( `uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`) values ( %d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
1617 intval($importer['uid']),
1619 intval($conversation['id']),
1620 dbesc($person['name']),
1621 dbesc($person['photo']),
1622 dbesc($person['url']),
1623 intval($contact['id']),
1624 dbesc($conversation['subject']),
1630 dbesc($msg_created_at)
1633 q("update conv set updated = '%s' where id = %d limit 1",
1634 dbesc(datetime_convert()),
1635 intval($conversation['id'])
1642 function diaspora_photo($importer,$xml,$msg) {
1646 logger('diaspora_photo: init',LOGGER_DEBUG);
1648 $remote_photo_path = notags(unxmlify($xml->remote_photo_path));
1650 $remote_photo_name = notags(unxmlify($xml->remote_photo_name));
1652 $status_message_guid = notags(unxmlify($xml->status_message_guid));
1654 $guid = notags(unxmlify($xml->guid));
1656 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
1658 $public = notags(unxmlify($xml->public));
1660 $created_at = notags(unxmlify($xml_created_at));
1662 logger('diaspora_photo: status_message_guid: ' . $status_message_guid, LOGGER_DEBUG);
1664 $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
1666 logger('diaspora_photo: contact record not found: ' . $msg['author'] . ' handle: ' . $diaspora_handle);
1670 if(! diaspora_post_allow($importer,$contact)) {
1671 logger('diaspora_photo: Ignoring this author.');
1675 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1676 intval($importer['uid']),
1677 dbesc($status_message_guid)
1680 logger('diaspora_photo: parent item not found: parent: ' . $parent_guid . ' item: ' . $guid);
1684 $parent_item = $r[0];
1686 $link_text = '[img]' . $remote_photo_path . $remote_photo_name . '[/img]' . "\n";
1688 $link_text = scale_external_images($link_text, true,
1689 array($remote_photo_name, 'scaled_full_' . $remote_photo_name));
1691 if(strpos($parent_item['body'],$link_text) === false) {
1692 $r = q("update item set `body` = '%s', `visible` = 1 where `id` = %d and `uid` = %d limit 1",
1693 dbesc($link_text . $parent_item['body']),
1694 intval($parent_item['id']),
1695 intval($parent_item['uid'])
1705 function diaspora_like($importer,$xml,$msg) {
1708 $guid = notags(unxmlify($xml->guid));
1709 $parent_guid = notags(unxmlify($xml->parent_guid));
1710 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
1711 $target_type = notags(unxmlify($xml->target_type));
1712 $positive = notags(unxmlify($xml->positive));
1713 $author_signature = notags(unxmlify($xml->author_signature));
1715 $parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
1717 // likes on comments not supported here and likes on photos not supported by Diaspora
1719 // if($target_type !== 'Post')
1722 $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
1724 logger('diaspora_like: cannot find contact: ' . $msg['author']);
1728 if(! diaspora_post_allow($importer,$contact)) {
1729 logger('diaspora_like: Ignoring this author.');
1733 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1734 intval($importer['uid']),
1738 logger('diaspora_like: parent item not found: ' . $guid);
1742 $parent_item = $r[0];
1744 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1745 intval($importer['uid']),
1749 if($positive === 'true') {
1750 logger('diaspora_like: duplicate like: ' . $guid);
1753 // Note: I don't think "Like" objects with positive = "false" are ever actually used
1754 // It looks like "RelayableRetractions" are used for "unlike" instead
1755 if($positive === 'false') {
1756 logger('diaspora_like: received a like with positive set to "false"...ignoring');
1757 /* q("UPDATE `item` SET `deleted` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
1758 intval($r[0]['id']),
1759 intval($importer['uid'])
1761 // FIXME--actually don't unless it turns out that Diaspora does indeed send out "false" likes
1762 // send notification via proc_run()
1766 // Note: I don't think "Like" objects with positive = "false" are ever actually used
1767 // It looks like "RelayableRetractions" are used for "unlike" instead
1768 if($positive === 'false') {
1769 logger('diaspora_like: received a like with positive set to "false"');
1770 logger('diaspora_like: unlike received with no corresponding like...ignoring');
1775 /* How Diaspora performs "like" signature checking:
1777 - If an item has been sent by the like author to the top-level post owner to relay on
1778 to the rest of the contacts on the top-level post, the top-level post owner should check
1779 the author_signature, then create a parent_author_signature before relaying the like on
1780 - If an item has been relayed on by the top-level post owner, the contacts who receive it
1781 check only the parent_author_signature. Basically, they trust that the top-level post
1782 owner has already verified the authenticity of anything he/she sends out
1783 - In either case, the signature that get checked is the signature created by the person
1787 $signed_data = $guid . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $diaspora_handle;
1790 if($parent_author_signature) {
1791 // If a parent_author_signature exists, then we've received the like
1792 // relayed from the top-level post owner. There's no need to check the
1793 // author_signature if the parent_author_signature is valid
1795 $parent_author_signature = base64_decode($parent_author_signature);
1797 if(! rsa_verify($signed_data,$parent_author_signature,$key,'sha256')) {
1798 logger('diaspora_like: top-level owner verification failed.');
1803 // If there's no parent_author_signature, then we've received the like
1804 // from the like creator. In that case, the person is "like"ing
1805 // our post, so he/she must be a contact of ours and his/her public key
1806 // should be in $msg['key']
1808 $author_signature = base64_decode($author_signature);
1810 if(! rsa_verify($signed_data,$author_signature,$key,'sha256')) {
1811 logger('diaspora_like: like creator verification failed.');
1816 // Phew! Everything checks out. Now create an item.
1818 // Find the original comment author information.
1819 // We need this to make sure we display the comment author
1820 // information (name and avatar) correctly.
1821 if(strcasecmp($diaspora_handle,$msg['author']) == 0)
1824 $person = find_diaspora_person_by_handle($diaspora_handle);
1826 if(! is_array($person)) {
1827 logger('diaspora_like: unable to find author details');
1832 $uri = $diaspora_handle . ':' . $guid;
1834 $activity = ACTIVITY_LIKE;
1835 $post_type = (($parent_item['resource-id']) ? t('photo') : t('status'));
1836 $objtype = (($parent_item['resource-id']) ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE );
1837 $link = xmlify('<link rel="alternate" type="text/html" href="' . $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $parent_item['id'] . '" />' . "\n") ;
1838 $body = $parent_item['body'];
1843 <type>$objtype</type>
1845 <id>{$parent_item['uri']}</id>
1848 <content>$body</content>
1851 $bodyverb = t('%1$s likes %2$s\'s %3$s');
1856 $arr['uid'] = $importer['uid'];
1857 $arr['guid'] = $guid;
1858 $arr['contact-id'] = $contact['id'];
1859 $arr['type'] = 'activity';
1860 $arr['wall'] = $parent_item['wall'];
1861 $arr['gravity'] = GRAVITY_LIKE;
1862 $arr['parent'] = $parent_item['id'];
1863 $arr['parent-uri'] = $parent_item['uri'];
1865 $arr['owner-name'] = $parent_item['name'];
1866 $arr['owner-link'] = $parent_item['url'];
1867 $arr['owner-avatar'] = $parent_item['thumb'];
1869 $arr['author-name'] = $person['name'];
1870 $arr['author-link'] = $person['url'];
1871 $arr['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']);
1873 $ulink = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
1874 $alink = '[url=' . $parent_item['author-link'] . ']' . $parent_item['author-name'] . '[/url]';
1875 $plink = '[url=' . $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $parent_item['id'] . ']' . $post_type . '[/url]';
1876 $arr['body'] = sprintf( $bodyverb, $ulink, $alink, $plink );
1878 $arr['app'] = 'Diaspora';
1880 $arr['private'] = $parent_item['private'];
1881 $arr['verb'] = $activity;
1882 $arr['object-type'] = $objtype;
1883 $arr['object'] = $obj;
1884 $arr['visible'] = 1;
1886 $arr['last-child'] = 0;
1888 $message_id = item_store($arr);
1892 q("update item set plink = '%s' where id = %d limit 1",
1893 dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id),
1898 if(! $parent_author_signature) {
1899 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
1900 intval($message_id),
1901 dbesc($signed_data),
1902 dbesc(base64_encode($author_signature)),
1903 dbesc($diaspora_handle)
1907 // if the message isn't already being relayed, notify others
1908 // the existence of parent_author_signature means the parent_author or owner
1909 // is already relaying. The parent_item['origin'] indicates the message was created on our system
1911 if(($parent_item['origin']) && (! $parent_author_signature))
1912 proc_run('php','include/notifier.php','comment-import',$message_id);
1917 function diaspora_retraction($importer,$xml) {
1920 $guid = notags(unxmlify($xml->guid));
1921 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
1922 $type = notags(unxmlify($xml->type));
1924 $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
1928 if($type === 'Person') {
1929 require_once('include/Contact.php');
1930 contact_remove($contact['id']);
1932 elseif($type === 'Post') {
1933 $r = q("select * from item where guid = '%s' and uid = %d and not file like '%%[%%' limit 1",
1935 intval($importer['uid'])
1938 if(link_compare($r[0]['author-link'],$contact['url'])) {
1939 q("update item set `deleted` = 1, `changed` = '%s' where `id` = %d limit 1",
1940 dbesc(datetime_convert()),
1951 function diaspora_signed_retraction($importer,$xml,$msg) {
1954 $guid = notags(unxmlify($xml->target_guid));
1955 $diaspora_handle = notags(unxmlify($xml->sender_handle));
1956 $type = notags(unxmlify($xml->target_type));
1957 $sig = notags(unxmlify($xml->target_author_signature));
1959 $parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
1961 $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
1963 logger('diaspora_signed_retraction: no contact ' . $diaspora_handle . ' for ' . $importer['uid']);
1968 $signed_data = $guid . ';' . $type ;
1971 /* How Diaspora performs relayable_retraction signature checking:
1973 - If an item has been sent by the item author to the top-level post owner to relay on
1974 to the rest of the contacts on the top-level post, the top-level post owner checks
1975 the author_signature, then creates a parent_author_signature before relaying the item on
1976 - If an item has been relayed on by the top-level post owner, the contacts who receive it
1977 check only the parent_author_signature. Basically, they trust that the top-level post
1978 owner has already verified the authenticity of anything he/she sends out
1979 - In either case, the signature that get checked is the signature created by the person
1983 if($parent_author_signature) {
1985 $parent_author_signature = base64_decode($parent_author_signature);
1987 if(! rsa_verify($signed_data,$parent_author_signature,$key,'sha256')) {
1988 logger('diaspora_signed_retraction: top-level post owner verification failed');
1995 $sig_decode = base64_decode($sig);
1997 if(! rsa_verify($signed_data,$sig_decode,$key,'sha256')) {
1998 logger('diaspora_signed_retraction: retraction owner verification failed.' . print_r($msg,true));
2003 if($type === 'StatusMessage' || $type === 'Comment' || $type === 'Like') {
2004 $r = q("select * from item where guid = '%s' and uid = %d and not file like '%%[%%' limit 1",
2006 intval($importer['uid'])
2009 if(link_compare($r[0]['author-link'],$contact['url'])) {
2010 q("update item set `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = '' where `id` = %d limit 1",
2011 dbesc(datetime_convert()),
2012 dbesc(datetime_convert()),
2016 // Now check if the retraction needs to be relayed by us
2018 // The first item in the `item` table with the parent id is the parent. However, MySQL doesn't always
2019 // return the items ordered by `item`.`id`, in which case the wrong item is chosen as the parent.
2020 // The only item with `parent` and `id` as the parent id is the parent item.
2021 $p = q("select origin from item where parent = %d and id = %d limit 1",
2026 if(($p[0]['origin']) && (! $parent_author_signature)) {
2027 q("insert into sign (`retract_iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
2029 dbesc($signed_data),
2031 dbesc($diaspora_handle)
2034 // the existence of parent_author_signature would have meant the parent_author or owner
2035 // is already relaying.
2036 logger('diaspora_signed_retraction: relaying relayable_retraction');
2038 proc_run('php','include/notifier.php','drop',$r[0]['id']);
2045 logger('diaspora_signed_retraction: unknown type: ' . $type);
2051 function diaspora_profile($importer,$xml,$msg) {
2054 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
2057 if($diaspora_handle != $msg['author']) {
2058 logger('diaspora_post: Potential forgery. Message handle is not the same as envelope sender.');
2062 $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
2066 if($contact['blocked']) {
2067 logger('diaspora_post: Ignoring this author.');
2071 $name = unxmlify($xml->first_name) . ((strlen($xml->last_name)) ? ' ' . unxmlify($xml->last_name) : '');
2072 $image_url = unxmlify($xml->image_url);
2073 $birthday = unxmlify($xml->birthday);
2076 $handle_parts = explode("@", $diaspora_handle);
2078 $name = $handle_parts[0];
2080 if(strpos($image_url, $handle_parts[1]) === false) {
2081 $image_url = "http://" . $handle_parts[1] . $image_url;
2084 /* $r = q("SELECT DISTINCT ( `resource-id` ) FROM `photo` WHERE `uid` = %d AND `contact-id` = %d AND `album` = 'Contact Photos' ",
2085 intval($importer['uid']),
2086 intval($contact['id'])
2088 $oldphotos = ((count($r)) ? $r : null);*/
2090 require_once('include/Photo.php');
2092 $images = import_profile_photo($image_url,$importer['uid'],$contact['id']);
2094 // Generic birthday. We don't know the timezone. The year is irrelevant.
2096 $birthday = str_replace('1000','1901',$birthday);
2098 $birthday = datetime_convert('UTC','UTC',$birthday,'Y-m-d');
2100 // this is to prevent multiple birthday notifications in a single year
2101 // if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
2103 if(substr($birthday,5) === substr($contact['bd'],5))
2104 $birthday = $contact['bd'];
2106 // TODO: update name on item['author-name'] if the name changed. See consume_feed()
2107 // Not doing this currently because D* protocol is scheduled for revision soon.
2109 $r = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s', `avatar-date` = '%s' , `bd` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1",
2111 dbesc(datetime_convert()),
2115 dbesc(datetime_convert()),
2117 intval($contact['id']),
2118 intval($importer['uid'])
2123 foreach($oldphotos as $ph) {
2124 q("DELETE FROM `photo` WHERE `uid` = %d AND `contact-id` = %d AND `album` = 'Contact Photos' AND `resource-id` = '%s' ",
2125 intval($importer['uid']),
2126 intval($contact['id']),
2127 dbesc($ph['resource-id'])
2137 function diaspora_share($me,$contact) {
2139 $myaddr = $me['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
2140 $theiraddr = $contact['addr'];
2142 $tpl = get_markup_template('diaspora_share.tpl');
2143 $msg = replace_macros($tpl, array(
2144 '$sender' => $myaddr,
2145 '$recipient' => $theiraddr
2148 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey'])));
2149 //$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey']));
2151 return(diaspora_transmit($owner,$contact,$slap, false));
2154 function diaspora_unshare($me,$contact) {
2157 $myaddr = $me['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
2159 $tpl = get_markup_template('diaspora_retract.tpl');
2160 $msg = replace_macros($tpl, array(
2161 '$guid' => $me['guid'],
2162 '$type' => 'Person',
2163 '$handle' => $myaddr
2166 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey'])));
2167 //$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey']));
2169 return(diaspora_transmit($owner,$contact,$slap, false));
2174 function diaspora_send_status($item,$owner,$contact,$public_batch = false) {
2177 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
2178 $theiraddr = $contact['addr'];
2182 $title = $item['title'];
2183 $body = $item['body'];
2186 // We're trying to match Diaspora's split message/photo protocol but
2187 // all the photos are displayed on D* as links and not img's - even
2188 // though we're sending pretty much precisely what they send us when
2189 // doing the same operation.
2190 // Commented out for now, we'll use bb2diaspora to convert photos to markdown
2191 // which seems to get through intact.
2193 $cnt = preg_match_all('|\[img\](.*?)\[\/img\]|',$body,$matches,PREG_SET_ORDER);
2195 foreach($matches as $mtch) {
2197 $detail['str'] = $mtch[0];
2198 $detail['path'] = dirname($mtch[1]) . '/';
2199 $detail['file'] = basename($mtch[1]);
2200 $detail['guid'] = $item['guid'];
2201 $detail['handle'] = $myaddr;
2202 $images[] = $detail;
2203 $body = str_replace($detail['str'],$mtch[1],$body);
2208 //if(strlen($title))
2209 // $body = "[b]".html_entity_decode($title)."[/b]\n\n".$body;
2211 // convert to markdown
2212 $body = xmlify(html_entity_decode(bb2diaspora($body)));
2213 //$body = bb2diaspora($body);
2217 $body = "## ".html_entity_decode($title)."\n\n".$body;
2219 if($item['attach']) {
2220 $cnt = preg_match_all('/href=\"(.*?)\"(.*?)title=\"(.*?)\"/ism',$item['attach'],$matches,PREG_SET_ORDER);
2222 $body .= "\n" . t('Attachments:') . "\n";
2223 foreach($matches as $mtch) {
2224 $body .= '[' . $mtch[3] . '](' . $mtch[1] . ')' . "\n";
2230 $public = (($item['private']) ? 'false' : 'true');
2232 require_once('include/datetime.php');
2233 $created = datetime_convert('UTC','UTC',$item['created'],'Y-m-d H:i:s \U\T\C');
2235 $tpl = get_markup_template('diaspora_post.tpl');
2236 $msg = replace_macros($tpl, array(
2238 '$guid' => $item['guid'],
2239 '$handle' => xmlify($myaddr),
2240 '$public' => $public,
2241 '$created' => $created
2244 logger('diaspora_send_status: ' . $owner['username'] . ' -> ' . $contact['name'] . ' base message: ' . $msg, LOGGER_DATA);
2246 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch)));
2247 //$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch));
2249 $return_code = diaspora_transmit($owner,$contact,$slap,$public_batch);
2251 if(count($images)) {
2252 diaspora_send_images($item,$owner,$contact,$images,$public_batch);
2255 return $return_code;
2259 function diaspora_send_images($item,$owner,$contact,$images,$public_batch = false) {
2261 if(! count($images))
2263 $mysite = substr($a->get_baseurl(),strpos($a->get_baseurl(),'://') + 3) . '/photo';
2265 $tpl = get_markup_template('diaspora_photo.tpl');
2266 foreach($images as $image) {
2267 if(! stristr($image['path'],$mysite))
2269 $resource = str_replace('.jpg','',$image['file']);
2270 $resource = substr($resource,0,strpos($resource,'-'));
2272 $r = q("select * from photo where `resource-id` = '%s' and `uid` = %d limit 1",
2274 intval($owner['uid'])
2278 $public = (($r[0]['allow_cid'] || $r[0]['allow_gid'] || $r[0]['deny_cid'] || $r[0]['deny_gid']) ? 'false' : 'true' );
2279 $msg = replace_macros($tpl,array(
2280 '$path' => xmlify($image['path']),
2281 '$filename' => xmlify($image['file']),
2282 '$msg_guid' => xmlify($image['guid']),
2283 '$guid' => xmlify($r[0]['guid']),
2284 '$handle' => xmlify($image['handle']),
2285 '$public' => xmlify($public),
2286 '$created_at' => xmlify(datetime_convert('UTC','UTC',$r[0]['created'],'Y-m-d H:i:s \U\T\C'))
2290 logger('diaspora_send_photo: base message: ' . $msg, LOGGER_DATA);
2291 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch)));
2292 //$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch));
2294 diaspora_transmit($owner,$contact,$slap,$public_batch);
2299 function diaspora_send_followup($item,$owner,$contact,$public_batch = false) {
2302 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
2303 // $theiraddr = $contact['addr'];
2305 // Diaspora doesn't support threaded comments
2306 /*if($item['thr-parent']) {
2307 $p = q("select guid, type, uri, `parent-uri` from item where uri = '%s' limit 1",
2308 dbesc($item['thr-parent'])
2312 // The first item in the `item` table with the parent id is the parent. However, MySQL doesn't always
2313 // return the items ordered by `item`.`id`, in which case the wrong item is chosen as the parent.
2314 // The only item with `parent` and `id` as the parent id is the parent item.
2315 $p = q("select guid, type, uri, `parent-uri` from item where parent = %d and id = %d limit 1",
2316 intval($item['parent']),
2317 intval($item['parent'])
2325 if($item['verb'] === ACTIVITY_LIKE) {
2326 $tpl = get_markup_template('diaspora_like.tpl');
2328 $target_type = ( $parent['uri'] === $parent['parent-uri'] ? 'Post' : 'Comment');
2329 // $target_type = (strpos($parent['type'], 'comment') ? 'Comment' : 'Post');
2330 // $positive = (($item['deleted']) ? 'false' : 'true');
2333 if(($item['deleted']))
2334 logger('diaspora_send_followup: received deleted "like". Those should go to diaspora_send_retraction');
2337 $tpl = get_markup_template('diaspora_comment.tpl');
2341 $text = html_entity_decode(bb2diaspora($item['body']));
2346 $signed_text = $item['guid'] . ';' . $target_type . ';' . $parent['guid'] . ';' . $positive . ';' . $myaddr;
2348 $signed_text = $item['guid'] . ';' . $parent['guid'] . ';' . $text . ';' . $myaddr;
2350 $authorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256'));
2352 $msg = replace_macros($tpl,array(
2353 '$guid' => xmlify($item['guid']),
2354 '$parent_guid' => xmlify($parent['guid']),
2355 '$target_type' =>xmlify($target_type),
2356 '$authorsig' => xmlify($authorsig),
2357 '$body' => xmlify($text),
2358 '$positive' => xmlify($positive),
2359 '$handle' => xmlify($myaddr)
2362 logger('diaspora_followup: base message: ' . $msg, LOGGER_DATA);
2364 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch)));
2365 //$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch));
2367 return(diaspora_transmit($owner,$contact,$slap,$public_batch));
2371 function diaspora_send_relay($item,$owner,$contact,$public_batch = false) {
2375 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
2376 // $theiraddr = $contact['addr'];
2378 $body = $item['body'];
2379 $text = html_entity_decode(bb2diaspora($body));
2381 // Diaspora doesn't support threaded comments
2382 /*if($item['thr-parent']) {
2383 $p = q("select guid, type, uri, `parent-uri` from item where uri = '%s' limit 1",
2384 dbesc($item['thr-parent'])
2388 // The first item in the `item` table with the parent id is the parent. However, MySQL doesn't always
2389 // return the items ordered by `item`.`id`, in which case the wrong item is chosen as the parent.
2390 // The only item with `parent` and `id` as the parent id is the parent item.
2391 $p = q("select guid, type, uri, `parent-uri` from item where parent = %d and id = %d limit 1",
2392 intval($item['parent']),
2393 intval($item['parent'])
2402 $relay_retract = false;
2403 $sql_sign_id = 'iid';
2404 if( $item['deleted']) {
2405 $relay_retract = true;
2407 $target_type = ( ($item['verb'] === ACTIVITY_LIKE) ? 'Like' : 'Comment');
2409 $sql_sign_id = 'retract_iid';
2410 $tpl = get_markup_template('diaspora_relayable_retraction.tpl');
2412 elseif($item['verb'] === ACTIVITY_LIKE) {
2415 $target_type = ( $parent['uri'] === $parent['parent-uri'] ? 'Post' : 'Comment');
2416 // $positive = (($item['deleted']) ? 'false' : 'true');
2419 $tpl = get_markup_template('diaspora_like_relay.tpl');
2421 else { // item is a comment
2422 $tpl = get_markup_template('diaspora_comment_relay.tpl');
2426 // fetch the original signature if the relayable was created by a Diaspora
2427 // or DFRN user. Relayables for other networks are not supported.
2429 /* $r = q("select * from sign where " . $sql_sign_id . " = %d limit 1",
2434 $signed_text = $orig_sign['signed_text'];
2435 $authorsig = $orig_sign['signature'];
2436 $handle = $orig_sign['signer'];
2440 // Author signature information (for likes, comments, and retractions of likes or comments,
2441 // whether from Diaspora or Friendica) must be placed in the `sign` table before this
2442 // function is called
2443 logger('diaspora_send_relay: original author signature not found, cannot send relayable');
2447 /* Since the author signature is only checked by the parent, not by the relay recipients,
2448 * I think it may not be necessary for us to do so much work to preserve all the original
2449 * signatures. The important thing that Diaspora DOES need is the original creator's handle.
2450 * Let's just generate that and forget about all the original author signature stuff.
2452 * Note: this might be more of an problem if we want to support likes on comments for older
2453 * versions of Diaspora (diaspora-pistos), but since there are a number of problems with
2454 * doing that, let's ignore it for now.
2456 * Currently, only DFRN contacts are supported. StatusNet shouldn't be hard, but it hasn't
2460 $handle = diaspora_handle_from_contact($item['contact-id']);
2466 $sender_signed_text = $item['guid'] . ';' . $target_type;
2468 $sender_signed_text = $item['guid'] . ';' . $target_type . ';' . $parent['guid'] . ';' . $positive . ';' . $handle;
2470 $sender_signed_text = $item['guid'] . ';' . $parent['guid'] . ';' . $text . ';' . $handle;
2472 // Sign the relayable with the top-level owner's signature
2474 // We'll use the $sender_signed_text that we just created, instead of the $signed_text
2475 // stored in the database, because that provides the best chance that Diaspora will
2476 // be able to reconstruct the signed text the same way we did. This is particularly a
2477 // concern for the comment, whose signed text includes the text of the comment. The
2478 // smallest change in the text of the comment, including removing whitespace, will
2479 // make the signature verification fail. Since we translate from BB code to Diaspora's
2480 // markup at the top of this function, which is AFTER we placed the original $signed_text
2481 // in the database, it's hazardous to trust the original $signed_text.
2483 $parentauthorsig = base64_encode(rsa_sign($sender_signed_text,$owner['uprvkey'],'sha256'));
2485 $msg = replace_macros($tpl,array(
2486 '$guid' => xmlify($item['guid']),
2487 '$parent_guid' => xmlify($parent['guid']),
2488 '$target_type' =>xmlify($target_type),
2489 '$authorsig' => xmlify($authorsig),
2490 '$parentsig' => xmlify($parentauthorsig),
2491 '$body' => xmlify($text),
2492 '$positive' => xmlify($positive),
2493 '$handle' => xmlify($handle)
2496 logger('diaspora_send_relay: base message: ' . $msg, LOGGER_DATA);
2499 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch)));
2500 //$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch));
2502 return(diaspora_transmit($owner,$contact,$slap,$public_batch));
2508 function diaspora_send_retraction($item,$owner,$contact,$public_batch = false) {
2511 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
2513 // Check whether the retraction is for a top-level post or whether it's a relayable
2514 if( $item['uri'] !== $item['parent-uri'] ) {
2516 $tpl = get_markup_template('diaspora_relay_retraction.tpl');
2517 $target_type = (($item['verb'] === ACTIVITY_LIKE) ? 'Like' : 'Comment');
2521 $tpl = get_markup_template('diaspora_signed_retract.tpl');
2522 $target_type = 'StatusMessage';
2525 $signed_text = $item['guid'] . ';' . $target_type;
2527 $msg = replace_macros($tpl, array(
2528 '$guid' => xmlify($item['guid']),
2529 '$type' => xmlify($target_type),
2530 '$handle' => xmlify($myaddr),
2531 '$signature' => xmlify(base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256')))
2534 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch)));
2535 //$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch));
2537 return(diaspora_transmit($owner,$contact,$slap,$public_batch));
2540 function diaspora_send_mail($item,$owner,$contact) {
2543 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
2545 $r = q("select * from conv where id = %d and uid = %d limit 1",
2546 intval($item['convid']),
2547 intval($item['uid'])
2551 logger('diaspora_send_mail: conversation not found.');
2557 'guid' => xmlify($cnv['guid']),
2558 'subject' => xmlify($cnv['subject']),
2559 'created_at' => xmlify(datetime_convert('UTC','UTC',$cnv['created'],'Y-m-d H:i:s \U\T\C')),
2560 'diaspora_handle' => xmlify($cnv['creator']),
2561 'participant_handles' => xmlify($cnv['recips'])
2564 $body = bb2diaspora($item['body']);
2565 $created = datetime_convert('UTC','UTC',$item['created'],'Y-m-d H:i:s \U\T\C');
2567 $signed_text = $item['guid'] . ';' . $cnv['guid'] . ';' . $body . ';'
2568 . $created . ';' . $myaddr . ';' . $cnv['guid'];
2570 $sig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256'));
2573 'guid' => xmlify($item['guid']),
2574 'parent_guid' => xmlify($cnv['guid']),
2575 'parent_author_signature' => (($item['reply']) ? null : xmlify($sig)),
2576 'author_signature' => xmlify($sig),
2577 'text' => xmlify($body),
2578 'created_at' => xmlify($created),
2579 'diaspora_handle' => xmlify($myaddr),
2580 'conversation_guid' => xmlify($cnv['guid'])
2583 if($item['reply']) {
2584 $tpl = get_markup_template('diaspora_message.tpl');
2585 $xmsg = replace_macros($tpl, array('$msg' => $msg));
2588 $conv['messages'] = array($msg);
2589 $tpl = get_markup_template('diaspora_conversation.tpl');
2590 $xmsg = replace_macros($tpl, array('$conv' => $conv));
2593 logger('diaspora_conversation: ' . print_r($xmsg,true), LOGGER_DATA);
2595 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($xmsg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],false)));
2596 //$slap = 'xml=' . urlencode(diaspora_msg_build($xmsg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],false));
2598 return(diaspora_transmit($owner,$contact,$slap,false));
2603 function diaspora_transmit($owner,$contact,$slap,$public_batch,$queue_run=false) {
2605 $enabled = intval(get_config('system','diaspora_enabled'));
2611 $logid = random_string(4);
2612 $dest_url = (($public_batch) ? $contact['batch'] : $contact['notify']);
2614 logger('diaspora_transmit: no url for contact: ' . $contact['id'] . ' batch mode =' . $public_batch);
2618 logger('diaspora_transmit: ' . $logid . ' ' . $dest_url);
2620 if( (! $queue_run) && (was_recently_delayed($contact['id'])) ) {
2624 if(! intval(get_config('system','diaspora_test'))) {
2625 post_url($dest_url . '/', $slap);
2626 $return_code = $a->get_curl_code();
2629 logger('diaspora_transmit: test_mode');
2634 logger('diaspora_transmit: ' . $logid . ' returns: ' . $return_code);
2636 if((! $return_code) || (($return_code == 503) && (stristr($a->get_curl_headers(),'retry-after')))) {
2637 logger('diaspora_transmit: queue message');
2639 $r = q("SELECT id from queue where cid = %d and network = '%s' and content = '%s' and batch = %d limit 1",
2640 intval($contact['id']),
2641 dbesc(NETWORK_DIASPORA),
2643 intval($public_batch)
2646 logger('diaspora_transmit: add_to_queue ignored - identical item already in queue');
2649 // queue message for redelivery
2650 add_to_queue($contact['id'],NETWORK_DIASPORA,$slap,$public_batch);
2655 return(($return_code) ? $return_code : (-1));