3 require_once('include/crypto.php');
4 require_once('include/items.php');
6 function diaspora_get_contact_by_handle($uid,$handle) {
7 $r = q("SELECT * FROM `contact` WHERE `network` = '%s' AND `uid` = %d AND `addr` = '%s' LIMIT 1",
8 dbesc(NETWORK_DIASPORA),
17 function find_diaspora_person_by_handle($handle) {
18 $r = q("select * from fcontact where network = '%s' and addr = '%s' limit 1",
19 dbesc(NETWORK_DIASPORA),
23 // update record occasionally so it doesn't get stale
24 $d = strtotime($r[0]['updated'] . ' +00:00');
25 if($d < strtotime('now - 14 days')) {
26 q("delete from fcontact where id = %d limit 1",
33 require_once('include/Scrape.php');
34 $r = probe_url($handle, PROBE_DIASPORA);
35 if((count($r)) && ($r['network'] === NETWORK_DIASPORA)) {
43 function get_diaspora_key($uri) {
44 logger('Fetching diaspora key for: ' . $uri);
46 $r = find_diaspora_person_by_handle($uri);
53 function diaspora_msg_build($msg,$user,$contact,$prvkey,$pubkey) {
56 logger('diaspora_msg_build: ' . $msg, LOGGER_DATA);
58 $inner_aes_key = random_string(32);
59 $b_inner_aes_key = base64_encode($inner_aes_key);
60 $inner_iv = random_string(16);
61 $b_inner_iv = base64_encode($inner_iv);
63 $outer_aes_key = random_string(32);
64 $b_outer_aes_key = base64_encode($outer_aes_key);
65 $outer_iv = random_string(16);
66 $b_outer_iv = base64_encode($outer_iv);
68 $handle = 'acct:' . $user['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
70 $padded_data = pkcs5_pad($msg,16);
71 $inner_encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $padded_data, MCRYPT_MODE_CBC, $inner_iv);
73 $b64_data = base64_encode($inner_encrypted);
76 $b64url_data = base64url_encode($b64_data);
77 $b64url_stripped = str_replace(array("\n","\r"," ","\t"),array('','','',''),$b64url_data);
78 $lines = str_split($b64url_stripped,60);
79 $data = implode("\n",$lines);
80 $data = $data . (($data[-1] != "\n") ? "\n" : '') ;
81 $type = 'application/atom+xml';
82 $encoding = 'base64url';
85 $signable_data = $data . '.' . base64url_encode($type) . "\n" . '.'
86 . base64url_encode($encoding) . "\n" . '.' . base64url_encode($alg) . "\n";
88 $signature = rsa_sign($signable_data,$prvkey);
89 $sig = base64url_encode($signature);
91 $decrypted_header = <<< EOT
94 <aes_key>$b_inner_aes_key</aes_key>
96 <name>{$user['username']}</name>
102 $decrypted_header = pkcs5_pad($decrypted_header,16);
104 $ciphertext = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $outer_aes_key, $decrypted_header, MCRYPT_MODE_CBC, $outer_iv);
106 $outer_json = json_encode(array('iv' => $b_outer_iv,'key' => $b_outer_aes_key));
108 $encrypted_outer_key_bundle = '';
109 openssl_public_encrypt($outer_json,$encrypted_outer_key_bundle,$pubkey);
111 logger('outer_bundle_encrypt: ' . openssl_error_string());
112 $b64_encrypted_outer_key_bundle = base64_encode($encrypted_outer_key_bundle);
114 logger('outer_bundle: ' . $b64_encrypted_outer_key_bundle . ' key: ' . $pubkey);
116 $encrypted_header_json_object = json_encode(array('aes_key' => base64_encode($encrypted_outer_key_bundle),
117 'ciphertext' => base64_encode($ciphertext)));
118 $cipher_json = base64_encode($encrypted_header_json_object);
120 $encrypted_header = '<encrypted_header>' . $cipher_json . '</encrypted_header>';
123 <?xml version='1.0' encoding='UTF-8'?>
124 <entry xmlns='http://www.w3.org/2005/Atom'>
126 <me:env xmlns:me="http://salmon-protocol.org/ns/magic-env">
127 <me:encoding>base64url</me:encoding>
128 <me:alg>RSA-SHA256</me:alg>
129 <me:data type="application/atom+xml">$data</me:data>
130 <me:sig>$sig</me:sig>
135 logger('diaspora_msg_build: magic_env: ' . $magic_env, LOGGER_DATA);
142 * diaspora_decode($importer,$xml)
143 * array $importer -> from user table
144 * string $xml -> urldecoded Diaspora salmon
147 * 'message' -> decoded Diaspora XML message
148 * 'author' -> author diaspora handle
149 * 'key' -> author public key (converted to pkcs#8)
151 * Author and key are used elsewhere to save a lookup for verifying replies and likes
155 function diaspora_decode($importer,$xml) {
157 $basedom = parse_xml_string($xml);
159 $atom = $basedom->children(NAMESPACE_ATOM1);
161 // Diaspora devs: This is kind of sucky - 'encrypted_header' does not belong in the atom namespace
163 $encrypted_header = json_decode(base64_decode($atom->encrypted_header));
165 $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
166 $ciphertext = base64_decode($encrypted_header->ciphertext);
168 $outer_key_bundle = '';
169 openssl_private_decrypt($encrypted_aes_key_bundle,$outer_key_bundle,$importer['prvkey']);
171 $j_outer_key_bundle = json_decode($outer_key_bundle);
173 $outer_iv = base64_decode($j_outer_key_bundle->iv);
174 $outer_key = base64_decode($j_outer_key_bundle->key);
176 $decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $outer_key, $ciphertext, MCRYPT_MODE_CBC, $outer_iv);
179 $decrypted = pkcs5_unpad($decrypted);
182 * $decrypted now contains something like
185 * <iv>8e+G2+ET8l5BPuW0sVTnQw==</iv>
186 * <aes_key>UvSMb4puPeB14STkcDWq+4QE302Edu15oaprAQSkLKU=</aes_key>
188 * <name>Ryan Hughes</name>
189 * <uri>acct:galaxor@diaspora.pirateship.org</uri>
191 * </decrypted_header>
194 logger('decrypted: ' . $decrypted);
195 $idom = parse_xml_string($decrypted,false);
197 $inner_iv = base64_decode($idom->iv);
198 $inner_aes_key = base64_decode($idom->aes_key);
200 $author_link = str_replace('acct:','',$idom->author->uri);
202 $dom = $basedom->children(NAMESPACE_SALMON_ME);
204 // figure out where in the DOM tree our data is hiding
206 if($dom->provenance->data)
207 $base = $dom->provenance;
208 elseif($dom->env->data)
214 logger('mod-diaspora: unable to locate salmon data in xml ');
215 http_status_exit(400);
219 // Stash the signature away for now. We have to find their key or it won't be good for anything.
220 $signature = base64url_decode($base->sig);
224 // strip whitespace so our data element will return to one big base64 blob
225 $data = str_replace(array(" ","\t","\r","\n"),array("","","",""),$base->data);
227 // Add back the 60 char linefeeds
229 // This completely violates the entire principle of salmon magic signatures,
230 // which was to have a message signing format that was completely ambivalent to linefeeds
231 // and transport whitespace mangling, and base64 wrapping rules. Guess what? PHP and Ruby
232 // use different linelengths for base64 output.
234 $lines = str_split($data,60);
235 $data = implode("\n",$lines);
238 // stash away some other stuff for later
240 $type = $base->data[0]->attributes()->type[0];
241 $keyhash = $base->sig[0]->attributes()->keyhash[0];
242 $encoding = $base->encoding;
245 // I can't even begin to tell you how sucky this is. Please read the spec.
247 $signed_data = $data . (($data[-1] != "\n") ? "\n" : '') . '.' . base64url_encode($type) . "\n" . '.' . base64url_encode($encoding) . "\n" . '.' . base64url_encode($alg) . "\n";
251 $data = base64url_decode($data);
253 // Now pull out the inner encrypted blob
255 $inner_encrypted = base64_decode($data);
258 $inner_decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $inner_encrypted, MCRYPT_MODE_CBC, $inner_iv);
260 $inner_decrypted = pkcs5_unpad($inner_decrypted);
263 logger('mod-diaspora: Could not retrieve author URI.');
264 http_status_exit(400);
267 // Once we have the author URI, go to the web and try to find their public key
268 // (first this will look it up locally if it is in the fcontact cache)
269 // This will also convert diaspora public key from pkcs#1 to pkcs#8
271 logger('mod-diaspora: Fetching key for ' . $author_link );
272 $key = get_diaspora_key($author_link);
275 logger('mod-diaspora: Could not retrieve author key.');
276 http_status_exit(400);
279 $verify = rsa_verify($signed_data,$signature,$key);
282 logger('mod-diaspora: Message did not verify. Discarding.');
283 http_status_exit(400);
286 logger('mod-diaspora: Message verified.');
288 return array('message' => $inner_decrypted, 'author' => $author_link, 'key' => $key);
294 function diaspora_request($importer,$xml) {
296 $sender_handle = unxmlify($xml->sender_handle);
297 $recipient_handle = unxmlify($xml->recipient_handle);
299 if(! $sender_handle || ! $recipient_handle)
302 $contact = diaspora_get_contact_by_handle($importer['uid'],$sender_handle);
307 // perhaps we were already sharing with this person. Now they're sharing with us.
308 // That makes us friends.
310 if($contact['rel'] == CONTACT_IS_FOLLOWER) {
311 q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
312 intval(CONTACT_IS_FRIEND),
313 intval($contact['id']),
314 intval($importer['uid'])
317 // send notification?
321 $ret = find_diaspora_person_by_handle($sender_handle);
324 if((! count($ret)) || ($ret['network'] != NETWORK_DIASPORA)) {
325 logger('diaspora_request: Cannot resolve diaspora handle ' . $sender_handle . ' for ' . $recipient_handle);
329 $r = q("INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
330 VALUES ( %d, '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s',%d,%d) ",
331 intval($importer['uid']),
332 dbesc($ret['network']),
338 dbesc($ret['photo']),
339 dbesc($ret['pubkey']),
340 dbesc($ret['notify']),
346 // find the contact record we just created
348 $contact_record = diaspora_get_contact_by_handle($importer['uid'],$sender_handle);
350 $hash = random_string() . (string) time(); // Generate a confirm_key
352 if($contact_record) {
353 $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime` )
354 VALUES ( %d, %d, %d, %d, '%s', '%s', '%s' )",
355 intval($importer['uid']),
356 intval($contact_record['id']),
359 dbesc( t('Sharing notification from Diaspora network')),
361 dbesc(datetime_convert())
368 function diaspora_post($importer,$xml) {
370 $guid = notags(unxmlify($xml->guid));
371 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
373 $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
377 if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
378 logger('diaspora_post: Ignoring this author.');
379 http_status_exit(202);
383 $message_id = $diaspora_handle . ':' . $guid;
384 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `guid` = '%s' LIMIT 1",
385 intval($importer['uid']),
392 // allocate a guid on our system - we aren't fixing any collisions.
393 // we're ignoring them
395 $g = q("select * from guid where guid = '%s' limit 1",
399 q("insert into guid ( guid ) values ( '%s' )",
404 $created = unxmlify($xml->created_at);
405 $private = ((unxmlify($xml->public) == 'false') ? 1 : 0);
407 $body = unxmlify($xml->raw_message);
409 require_once('library/HTMLPurifier.auto.php');
410 require_once('include/html2bbcode.php');
412 $maxlen = get_max_import_size();
413 if($maxlen && (strlen($body) > $maxlen))
414 $body = substr($body,0, $maxlen);
416 if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
418 $body = preg_replace('#<object[^>]+>.+?' . 'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s',
419 '[youtube]$1[/youtube]', $body);
421 $body = preg_replace('#<iframe[^>].+?' . 'http://www.youtube.com/embed/([A-Za-z0-9\-_=]+).+?</iframe>#s',
422 '[youtube]$1[/youtube]', $body);
424 $body = oembed_html2bbcode($body);
426 $config = HTMLPurifier_Config::createDefault();
427 $config->set('Cache.DefinitionImpl', null);
428 $purifier = new HTMLPurifier($config);
429 $body = $purifier->purify($body);
431 $body = html2bbcode($body);
435 $datarray['uid'] = $importer['uid'];
436 $datarray['contact-id'] = $contact['id'];
437 $datarray['wall'] = 0;
438 $datarray['guid'] = $guid;
439 $datarray['uri'] = $datarray['parent-uri'] = $message_id;
440 $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
441 $datarray['private'] = $private;
442 $datarray['parent'] = 0;
443 $datarray['owner-name'] = $contact['name'];
444 $datarray['owner-link'] = $contact['url'];
445 $datarray['owner-avatar'] = $contact['thumb'];
446 $datarray['author-name'] = $contact['name'];
447 $datarray['author-link'] = $contact['url'];
448 $datarray['author-avatar'] = $contact['thumb'];
449 $datarray['body'] = $body;
451 item_store($datarray);
457 function diaspora_comment($importer,$xml,$msg) {
459 $guid = notags(unxmlify($xml->guid));
460 $parent_guid = notags(unxmlify($xml->parent_guid));
461 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
462 $target_type = notags(unxmlify($xml->target_type));
463 $text = unxmlify($xml->text);
464 $author_signature = notags(unxmlify($xml->author_signature));
466 $parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
470 $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
474 if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
475 logger('diaspora_comment: Ignoring this author.');
476 http_status_exit(202);
480 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
481 intval($importer['uid']),
485 logger('diaspora_comment: parent item not found: parent: ' . $parent_guid . ' item: ' . $guid);
488 $parent_item = $r[0];
490 $author_signed_data = $guid . ';' . $parent_guid . ';' . $text . ';' . $diaspora_handle;
492 $author_signature = base64_decode($author_signature);
494 if(strcasecmp($diaspora_handle,$msg['author']) == 0) {
499 $person = find_diaspora_person_by_handle($diaspora_handle);
501 if(is_array($person) && x($person,'pubkey'))
502 $key = $person['pubkey'];
504 logger('diaspora_comment: unable to find author details');
509 if(! rsa_verify($author_signed_data,$author_signature,$key,'sha')) {
510 logger('diaspora_comment: verification failed.');
515 if($parent_author_signature) {
516 $owner_signed_data = $guid . ';' . $parent_guid . ';' . $text . ';' . $msg['author'];
518 $parent_author_signature = base64_decode($parent_author_signature);
522 if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha')) {
523 logger('diaspora_comment: owner verification failed.');
528 // Phew! Everything checks out. Now create an item.
530 require_once('library/HTMLPurifier.auto.php');
531 require_once('include/html2bbcode.php');
535 $maxlen = get_max_import_size();
536 if($maxlen && (strlen($body) > $maxlen))
537 $body = substr($body,0, $maxlen);
539 if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
541 $body = preg_replace('#<object[^>]+>.+?' . 'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s',
542 '[youtube]$1[/youtube]', $body);
544 $body = preg_replace('#<iframe[^>].+?' . 'http://www.youtube.com/embed/([A-Za-z0-9\-_=]+).+?</iframe>#s',
545 '[youtube]$1[/youtube]', $body);
547 $body = oembed_html2bbcode($body);
549 $config = HTMLPurifier_Config::createDefault();
550 $config->set('Cache.DefinitionImpl', null);
551 $purifier = new HTMLPurifier($config);
552 $body = $purifier->purify($body);
554 $body = html2bbcode($body);
557 $message_id = $diaspora_handle . ':' . $guid;
560 $datarray['uid'] = $importer['uid'];
561 $datarray['contact-id'] = $contact['id'];
562 $datarray['wall'] = $parent_item['wall'];
563 $datarray['gravity'] = GRAVITY_COMMENT;
564 $datarray['guid'] = $guid;
565 $datarray['uri'] = $message_id;
566 $datarray['parent-uri'] = $parent_item['uri'];
568 // No timestamps for comments? OK, we'll the use current time.
569 $datarray['created'] = $datarray['edited'] = datetime_convert();
570 $datarray['private'] = $parent_item['private'];
572 $datarray['owner-name'] = $contact['name'];
573 $datarray['owner-link'] = $contact['url'];
574 $datarray['owner-avatar'] = $contact['thumb'];
576 $datarray['author-name'] = $person['name'];
577 $datarray['author-link'] = $person['url'];
578 $datarray['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']);
579 $datarray['body'] = $body;
581 $message_id = item_store($datarray);
583 if(! $parent_author_signature) {
584 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
586 dbesc($author_signed_data),
587 dbesc(base64_encode($author_signature)),
588 dbesc($diaspora_handle)
593 proc_run('php','include/notifier.php','comment',$message_id);
599 function diaspora_like($importer,$xml,$msg) {
602 $guid = notags(unxmlify($xml->guid));
603 $parent_guid = notags(unxmlify($xml->parent_guid));
604 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
605 $target_type = notags(unxmlify($xml->target_type));
606 $positive = notags(unxmlify($xml->positive));
607 $author_signature = notags(unxmlify($xml->author_signature));
609 $parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
611 // likes on comments not supported here and likes on photos not supported by Diaspora
613 if($target_type !== 'Post')
616 $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
620 if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
621 logger('diaspora_like: Ignoring this author.');
622 http_status_exit(202);
626 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
627 intval($importer['uid']),
631 logger('diaspora_like: parent item not found: ' . $guid);
635 $parent_item = $r[0];
637 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
638 intval($importer['uid']),
642 if($positive === 'true') {
643 logger('diaspora_like: duplicate like: ' . $guid);
646 if($positive === 'false') {
647 q("UPDATE `item` SET `deleted` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
649 intval($importer['uid'])
652 // send notification via proc_run()
656 if($positive === 'false') {
657 logger('diaspora_like: unlike received with no corresponding like');
661 $author_signed_data = $guid . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $diaspora_handle;
663 $author_signature = base64_decode($author_signature);
665 if(strcasecmp($diaspora_handle,$msg['author']) == 0) {
670 $person = find_diaspora_person_by_handle($diaspora_handle);
671 if(is_array($person) && x($person,'pubkey'))
672 $key = $person['pubkey'];
674 logger('diaspora_like: unable to find author details');
679 if(! rsa_verify($author_signed_data,$author_signature,$key,'sha')) {
680 logger('diaspora_like: verification failed.');
684 if($parent_author_signature) {
685 $owner_signed_data = $guid . ';' . $parent_guid . ';' . $target_type . ';' . $positive . ';' . $msg['author'];
687 $parent_author_signature = base64_decode($parent_author_signature);
691 if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha')) {
692 logger('diaspora_like: owner verification failed.');
697 // Phew! Everything checks out. Now create an item.
699 $uri = $diaspora_handle . ':' . $guid;
701 $activity = ACTIVITY_LIKE;
702 $post_type = (($parent_item['resource-id']) ? t('photo') : t('status'));
703 $objtype = (($parent_item['resource-id']) ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE );
704 $link = xmlify('<link rel="alternate" type="text/html" href="' . $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $parent_item['id'] . '" />' . "\n") ;
705 $body = $parent_item['body'];
710 <type>$objtype</type>
712 <id>{$parent_item['uri']}</id>
715 <content>$body</content>
718 $bodyverb = t('%1$s likes %2$s\'s %3$s');
723 $arr['uid'] = $importer['uid'];
724 $arr['guid'] = $guid;
725 $arr['contact-id'] = $contact['id'];
726 $arr['type'] = 'activity';
727 $arr['wall'] = $parent_item['wall'];
728 $arr['gravity'] = GRAVITY_LIKE;
729 $arr['parent'] = $parent_item['id'];
730 $arr['parent-uri'] = $parent_item['uri'];
732 $arr['owner-name'] = $contact['name'];
733 $arr['owner-link'] = $contact['url'];
734 $arr['owner-avatar'] = $contact['thumb'];
736 $arr['author-name'] = $person['name'];
737 $arr['author-link'] = $person['url'];
738 $arr['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']);
740 $ulink = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
741 $alink = '[url=' . $parent_item['author-link'] . ']' . $parent_item['author-name'] . '[/url]';
742 $plink = '[url=' . $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $parent_item['id'] . ']' . $post_type . '[/url]';
743 $arr['body'] = sprintf( $bodyverb, $ulink, $alink, $plink );
745 $arr['private'] = $parent_item['private'];
746 $arr['verb'] = $activity;
747 $arr['object-type'] = $objtype;
748 $arr['object'] = $obj;
751 $arr['last-child'] = 0;
753 $message_id = item_store($arr);
755 if(! $parent_author_signature) {
756 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
758 dbesc($author_signed_data),
759 dbesc(base64_encode($author_signature)),
760 dbesc($diaspora_handle)
765 proc_run('php','include/notifier.php','comment',$message_id);
770 function diaspora_retraction($importer,$xml) {
772 $guid = notags(unxmlify($xml->guid));
773 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
774 $type = notags(unxmlify($xml->type));
776 $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
780 if($type === 'Person') {
781 contact_remove($contact['id']);
783 elseif($type === 'Post') {
784 $r = q("select * from item where guid = '%s' and uid = %d limit 1",
786 intval($importer['uid'])
789 if(link_compare($r[0]['author-link'],$contact['url'])) {
790 q("update item set `deleted` = 1, `changed` = '%s' where `id` = %d limit 1",
791 dbesc(datetime_convert()),
798 http_exit_status(202);
802 function diaspora_share($me,$contact) {
804 $myaddr = $me['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
805 $theiraddr = $contact['addr'];
807 $tpl = get_markup_template('diaspora_share.tpl');
808 $msg = replace_macros($tpl, array(
809 '$sender' => $myaddr,
810 '$recipient' => $theiraddr
813 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey'])));
815 post_url($contact['notify'] . '/',$slap);
816 $return_code = $a->get_curl_code();
817 logger('diaspora_send_share: returns: ' . $return_code);
821 function diaspora_unshare($me,$contact) {
824 $myaddr = $me['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
826 $tpl = get_markup_template('diaspora_retract.tpl');
827 $msg = replace_macros($tpl, array(
828 '$guid' => $me['guid'],
833 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey'])));
835 post_url($contact['notify'] . '/',$slap);
836 $return_code = $a->get_curl_code();
837 logger('diaspora_send_unshare: returns: ' . $return_code);
843 function diaspora_send_status($item,$owner,$contact) {
846 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
847 $theiraddr = $contact['addr'];
848 require_once('include/bb2diaspora.php');
850 $body = xmlify(bb2diaspora($item['body']));
851 $public = (($item['private']) ? 'false' : 'true');
853 require_once('include/datetime.php');
854 $created = datetime_convert('UTC','UTC',$item['created'],'Y-m-d h:i:s \U\T\C');
856 $tpl = get_markup_template('diaspora_post.tpl');
857 $msg = replace_macros($tpl, array(
859 '$guid' => $item['guid'],
860 '$handle' => xmlify($myaddr),
861 '$public' => $public,
862 '$created' => $created
865 logger('diaspora_send_status: base message: ' . $msg, LOGGER_DATA);
867 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
869 post_url($contact['notify'] . '/',$slap);
870 $return_code = $a->get_curl_code();
871 logger('diaspora_send_status: returns: ' . $return_code);
876 function diaspora_send_followup($item,$owner,$contact) {
879 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
880 $theiraddr = $contact['addr'];
882 $p = q("select guid from item where parent = %d limit 1",
886 $parent_guid = $p[0]['guid'];
890 if($item['verb'] === ACTIVITY_LIKE) {
891 $tpl = get_markup_template('diaspora_like.tpl');
893 $target_type = 'Post';
894 $positive = (($item['deleted']) ? 'false' : 'true');
897 $tpl = get_markup_template('diaspora_comment.tpl');
901 $text = bb2diaspora($item['body']);
906 $signed_text = $item['guid'] . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $myaddr;
908 $signed_text = $item['guid'] . ';' . $parent_guid . ';' . $text . ';' . $myaddr;
910 $authorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha'));
912 $msg = replace_macros($tpl,array(
913 '$guid' => xmlify($item['guid']),
914 '$parent_guid' => xmlify($parent_guid),
915 '$target_type' =>xmlify($target_type),
916 '$authorsig' => xmlify($authorsig),
917 '$body' => xmlify($text),
918 '$positive' => xmlify($positive),
919 '$handle' => xmlify($myaddr)
922 logger('diaspora_followup: base message: ' . $msg, LOGGER_DATA);
924 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
926 post_url($contact['notify'] . '/',$slap);
927 $return_code = $a->get_curl_code();
928 logger('diaspora_send_followup: returns: ' . $return_code);
934 function diaspora_send_relay($item,$owner,$contact) {
938 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
939 $theiraddr = $contact['addr'];
942 $p = q("select guid from item where parent = %d limit 1",
946 $parent_guid = $p[0]['guid'];
950 // fetch the original signature
951 $r = q("select * from sign where iid = %d limit 1",
958 if($item['verb'] === ACTIVITY_LIKE) {
959 $tpl = get_markup_template('diaspora_like_relay.tpl');
961 $target_type = 'Post';
962 $positive = (($item['deleted']) ? 'false' : 'true');
965 $tpl = get_markup_template('diaspora_comment_relay.tpl');
969 $text = bb2diaspora($item['body']);
974 $parent_signed_text = $orig_sign['signed_text'];
976 $parent_signed_text = $orig_sign['signed_text'];
978 $parentauthorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha'));
980 $msg = replace_macros($tpl,array(
981 '$guid' => xmlify($item['guid']),
982 '$parent_guid' => xmlify($parent_guid),
983 '$target_type' =>xmlify($target_type),
984 '$authorsig' => xmlify($orig_sign['signature']),
985 '$parentsig' => xmlify($parentauthorsig),
986 '$text' => xmlify($text),
987 '$positive' => xmlify($positive),
988 '$diaspora_handle' => xmlify($myaddr)
991 // fetch the original signature
992 $r = q("select * from sign where iid = %d limit 1",
998 logger('diaspora_relay_comment: base message: ' . $msg, LOGGER_DATA);
1000 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
1002 post_url($contact['notify'] . '/',$slap);
1003 $return_code = $a->get_curl_code();
1004 logger('diaspora_send_relay: returns: ' . $return_code);
1005 return $return_code;
1011 function diaspora_send_retraction($item,$owner,$contact) {
1014 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
1016 $tpl = get_markup_template('diaspora_retract.tpl');
1017 $msg = replace_macros($tpl, array(
1018 '$guid' => $item['guid'],
1020 '$handle' => $myaddr
1023 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
1025 post_url($contact['notify'] . '/',$slap);
1026 $return_code = $a->get_curl_code();
1027 logger('diaspora_send_retraction: returns: ' . $return_code);
1028 return $return_code;