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');
8 function diaspora_dispatch($importer,$msg) {
10 $parsed_xml = parse_xml_string($msg['message'],false);
12 $xmlbase = $parsed_xml->post;
14 if($xmlbase->request) {
15 diaspora_request($importer,$xmlbase->request);
17 elseif($xmlbase->status_message) {
18 diaspora_post($importer,$xmlbase->status_message);
20 elseif($xmlbase->comment) {
21 diaspora_comment($importer,$xmlbase->comment,$msg);
23 elseif($xmlbase->like) {
24 diaspora_like($importer,$xmlbase->like,$msg);
26 elseif($xmlbase->retraction) {
27 diaspora_retraction($importer,$xmlbase->retraction,$msg);
29 elseif($xmlbase->photo) {
30 diaspora_photo($importer,$xmlbase->photo,$msg);
33 logger('diaspora_dispatch: unknown message type: ' . print_r($xmlbase,true));
38 function diaspora_get_contact_by_handle($uid,$handle) {
39 $r = q("SELECT * FROM `contact` WHERE `network` = '%s' AND `uid` = %d AND `addr` = '%s' LIMIT 1",
40 dbesc(NETWORK_DIASPORA),
49 function find_diaspora_person_by_handle($handle) {
50 $r = q("select * from fcontact where network = '%s' and addr = '%s' limit 1",
51 dbesc(NETWORK_DIASPORA),
55 // update record occasionally so it doesn't get stale
56 $d = strtotime($r[0]['updated'] . ' +00:00');
57 if($d < strtotime('now - 14 days')) {
58 q("delete from fcontact where id = %d limit 1",
65 require_once('include/Scrape.php');
66 $r = probe_url($handle, PROBE_DIASPORA);
67 if((count($r)) && ($r['network'] === NETWORK_DIASPORA)) {
75 function get_diaspora_key($uri) {
76 logger('Fetching diaspora key for: ' . $uri);
78 $r = find_diaspora_person_by_handle($uri);
85 function diaspora_msg_build($msg,$user,$contact,$prvkey,$pubkey) {
88 logger('diaspora_msg_build: ' . $msg, LOGGER_DATA);
90 $inner_aes_key = random_string(32);
91 $b_inner_aes_key = base64_encode($inner_aes_key);
92 $inner_iv = random_string(16);
93 $b_inner_iv = base64_encode($inner_iv);
95 $outer_aes_key = random_string(32);
96 $b_outer_aes_key = base64_encode($outer_aes_key);
97 $outer_iv = random_string(16);
98 $b_outer_iv = base64_encode($outer_iv);
100 $handle = 'acct:' . $user['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
102 $padded_data = pkcs5_pad($msg,16);
103 $inner_encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $padded_data, MCRYPT_MODE_CBC, $inner_iv);
105 $b64_data = base64_encode($inner_encrypted);
108 $b64url_data = base64url_encode($b64_data);
109 $b64url_stripped = str_replace(array("\n","\r"," ","\t"),array('','','',''),$b64url_data);
110 $lines = str_split($b64url_stripped,60);
111 $data = implode("\n",$lines);
112 $data = $data . (($data[-1] != "\n") ? "\n" : '') ;
113 $type = 'application/atom+xml';
114 $encoding = 'base64url';
117 $signable_data = $data . '.' . base64url_encode($type) . "\n" . '.'
118 . base64url_encode($encoding) . "\n" . '.' . base64url_encode($alg) . "\n";
120 $signature = rsa_sign($signable_data,$prvkey);
121 $sig = base64url_encode($signature);
123 $decrypted_header = <<< EOT
126 <aes_key>$b_inner_aes_key</aes_key>
128 <name>{$user['username']}</name>
134 $decrypted_header = pkcs5_pad($decrypted_header,16);
136 $ciphertext = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $outer_aes_key, $decrypted_header, MCRYPT_MODE_CBC, $outer_iv);
138 $outer_json = json_encode(array('iv' => $b_outer_iv,'key' => $b_outer_aes_key));
140 $encrypted_outer_key_bundle = '';
141 openssl_public_encrypt($outer_json,$encrypted_outer_key_bundle,$pubkey);
143 logger('outer_bundle_encrypt: ' . openssl_error_string());
144 $b64_encrypted_outer_key_bundle = base64_encode($encrypted_outer_key_bundle);
146 logger('outer_bundle: ' . $b64_encrypted_outer_key_bundle . ' key: ' . $pubkey);
148 $encrypted_header_json_object = json_encode(array('aes_key' => base64_encode($encrypted_outer_key_bundle),
149 'ciphertext' => base64_encode($ciphertext)));
150 $cipher_json = base64_encode($encrypted_header_json_object);
152 $encrypted_header = '<encrypted_header>' . $cipher_json . '</encrypted_header>';
155 <?xml version='1.0' encoding='UTF-8'?>
156 <entry xmlns='http://www.w3.org/2005/Atom'>
158 <me:env xmlns:me="http://salmon-protocol.org/ns/magic-env">
159 <me:encoding>base64url</me:encoding>
160 <me:alg>RSA-SHA256</me:alg>
161 <me:data type="application/atom+xml">$data</me:data>
162 <me:sig>$sig</me:sig>
167 logger('diaspora_msg_build: magic_env: ' . $magic_env, LOGGER_DATA);
174 * diaspora_decode($importer,$xml)
175 * array $importer -> from user table
176 * string $xml -> urldecoded Diaspora salmon
179 * 'message' -> decoded Diaspora XML message
180 * 'author' -> author diaspora handle
181 * 'key' -> author public key (converted to pkcs#8)
183 * Author and key are used elsewhere to save a lookup for verifying replies and likes
187 function diaspora_decode($importer,$xml) {
189 $basedom = parse_xml_string($xml);
191 $atom = $basedom->children(NAMESPACE_ATOM1);
193 // Diaspora devs: This is kind of sucky - 'encrypted_header' does not belong in the atom namespace
195 $encrypted_header = json_decode(base64_decode($atom->encrypted_header));
197 $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
198 $ciphertext = base64_decode($encrypted_header->ciphertext);
200 $outer_key_bundle = '';
201 openssl_private_decrypt($encrypted_aes_key_bundle,$outer_key_bundle,$importer['prvkey']);
203 $j_outer_key_bundle = json_decode($outer_key_bundle);
205 $outer_iv = base64_decode($j_outer_key_bundle->iv);
206 $outer_key = base64_decode($j_outer_key_bundle->key);
208 $decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $outer_key, $ciphertext, MCRYPT_MODE_CBC, $outer_iv);
211 $decrypted = pkcs5_unpad($decrypted);
214 * $decrypted now contains something like
217 * <iv>8e+G2+ET8l5BPuW0sVTnQw==</iv>
218 * <aes_key>UvSMb4puPeB14STkcDWq+4QE302Edu15oaprAQSkLKU=</aes_key>
220 * <name>Ryan Hughes</name>
221 * <uri>acct:galaxor@diaspora.pirateship.org</uri>
223 * </decrypted_header>
226 logger('decrypted: ' . $decrypted);
227 $idom = parse_xml_string($decrypted,false);
229 $inner_iv = base64_decode($idom->iv);
230 $inner_aes_key = base64_decode($idom->aes_key);
232 $author_link = str_replace('acct:','',$idom->author->uri);
234 $dom = $basedom->children(NAMESPACE_SALMON_ME);
236 // figure out where in the DOM tree our data is hiding
238 if($dom->provenance->data)
239 $base = $dom->provenance;
240 elseif($dom->env->data)
246 logger('mod-diaspora: unable to locate salmon data in xml ');
247 http_status_exit(400);
251 // Stash the signature away for now. We have to find their key or it won't be good for anything.
252 $signature = base64url_decode($base->sig);
256 // strip whitespace so our data element will return to one big base64 blob
257 $data = str_replace(array(" ","\t","\r","\n"),array("","","",""),$base->data);
259 // Add back the 60 char linefeeds
261 // This completely violates the entire principle of salmon magic signatures,
262 // which was to have a message signing format that was completely ambivalent to linefeeds
263 // and transport whitespace mangling, and base64 wrapping rules. Guess what? PHP and Ruby
264 // use different linelengths for base64 output.
266 $lines = str_split($data,60);
267 $data = implode("\n",$lines);
270 // stash away some other stuff for later
272 $type = $base->data[0]->attributes()->type[0];
273 $keyhash = $base->sig[0]->attributes()->keyhash[0];
274 $encoding = $base->encoding;
277 // I can't even begin to tell you how sucky this is. Please read the spec.
279 $signed_data = $data . (($data[-1] != "\n") ? "\n" : '') . '.' . base64url_encode($type) . "\n" . '.' . base64url_encode($encoding) . "\n" . '.' . base64url_encode($alg) . "\n";
283 $data = base64url_decode($data);
285 // Now pull out the inner encrypted blob
287 $inner_encrypted = base64_decode($data);
290 $inner_decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $inner_encrypted, MCRYPT_MODE_CBC, $inner_iv);
292 $inner_decrypted = pkcs5_unpad($inner_decrypted);
295 logger('mod-diaspora: Could not retrieve author URI.');
296 http_status_exit(400);
299 // Once we have the author URI, go to the web and try to find their public key
300 // (first this will look it up locally if it is in the fcontact cache)
301 // This will also convert diaspora public key from pkcs#1 to pkcs#8
303 logger('mod-diaspora: Fetching key for ' . $author_link );
304 $key = get_diaspora_key($author_link);
307 logger('mod-diaspora: Could not retrieve author key.');
308 http_status_exit(400);
311 $verify = rsa_verify($signed_data,$signature,$key);
314 logger('mod-diaspora: Message did not verify. Discarding.');
315 http_status_exit(400);
318 logger('mod-diaspora: Message verified.');
320 return array('message' => $inner_decrypted, 'author' => $author_link, 'key' => $key);
326 function diaspora_request($importer,$xml) {
328 $sender_handle = unxmlify($xml->sender_handle);
329 $recipient_handle = unxmlify($xml->recipient_handle);
331 if(! $sender_handle || ! $recipient_handle)
334 $contact = diaspora_get_contact_by_handle($importer['uid'],$sender_handle);
339 // perhaps we were already sharing with this person. Now they're sharing with us.
340 // That makes us friends.
342 if($contact['rel'] == CONTACT_IS_FOLLOWER) {
343 q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
344 intval(CONTACT_IS_FRIEND),
345 intval($contact['id']),
346 intval($importer['uid'])
349 // send notification?
353 $ret = find_diaspora_person_by_handle($sender_handle);
356 if((! count($ret)) || ($ret['network'] != NETWORK_DIASPORA)) {
357 logger('diaspora_request: Cannot resolve diaspora handle ' . $sender_handle . ' for ' . $recipient_handle);
361 $r = q("INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
362 VALUES ( %d, '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s',%d,%d) ",
363 intval($importer['uid']),
364 dbesc($ret['network']),
370 dbesc($ret['photo']),
371 dbesc($ret['pubkey']),
372 dbesc($ret['notify']),
378 // find the contact record we just created
380 $contact_record = diaspora_get_contact_by_handle($importer['uid'],$sender_handle);
382 $hash = random_string() . (string) time(); // Generate a confirm_key
384 if($contact_record) {
385 $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime` )
386 VALUES ( %d, %d, %d, %d, '%s', '%s', '%s' )",
387 intval($importer['uid']),
388 intval($contact_record['id']),
391 dbesc( t('Sharing notification from Diaspora network')),
393 dbesc(datetime_convert())
400 function diaspora_post($importer,$xml) {
402 $guid = notags(unxmlify($xml->guid));
403 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
405 $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
409 if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
410 logger('diaspora_post: Ignoring this author.');
411 http_status_exit(202);
415 $message_id = $diaspora_handle . ':' . $guid;
416 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `guid` = '%s' LIMIT 1",
417 intval($importer['uid']),
424 // allocate a guid on our system - we aren't fixing any collisions.
425 // we're ignoring them
427 $g = q("select * from guid where guid = '%s' limit 1",
431 q("insert into guid ( guid ) values ( '%s' )",
436 $created = unxmlify($xml->created_at);
437 $private = ((unxmlify($xml->public) == 'false') ? 1 : 0);
439 $body = diaspora2bb($xml->raw_message);
442 $datarray['uid'] = $importer['uid'];
443 $datarray['contact-id'] = $contact['id'];
444 $datarray['wall'] = 0;
445 $datarray['guid'] = $guid;
446 $datarray['uri'] = $datarray['parent-uri'] = $message_id;
447 $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
448 $datarray['private'] = $private;
449 $datarray['parent'] = 0;
450 $datarray['owner-name'] = $contact['name'];
451 $datarray['owner-link'] = $contact['url'];
452 $datarray['owner-avatar'] = $contact['thumb'];
453 $datarray['author-name'] = $contact['name'];
454 $datarray['author-link'] = $contact['url'];
455 $datarray['author-avatar'] = $contact['thumb'];
456 $datarray['body'] = $body;
457 $datarray['app'] = 'Diaspora';
459 item_store($datarray);
465 function diaspora_comment($importer,$xml,$msg) {
467 $guid = notags(unxmlify($xml->guid));
468 $parent_guid = notags(unxmlify($xml->parent_guid));
469 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
470 $target_type = notags(unxmlify($xml->target_type));
471 $text = unxmlify($xml->text);
472 $author_signature = notags(unxmlify($xml->author_signature));
474 $parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
478 $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
482 if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
483 logger('diaspora_comment: Ignoring this author.');
484 http_status_exit(202);
488 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
489 intval($importer['uid']),
493 logger('daspora_comment: our comment just got relayed back to us (or there was a guid collision) : ' . $guid);
497 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
498 intval($importer['uid']),
502 logger('diaspora_comment: parent item not found: parent: ' . $parent_guid . ' item: ' . $guid);
505 $parent_item = $r[0];
507 $author_signed_data = $guid . ';' . $parent_guid . ';' . $text . ';' . $diaspora_handle;
509 $author_signature = base64_decode($author_signature);
511 if(strcasecmp($diaspora_handle,$msg['author']) == 0) {
516 $person = find_diaspora_person_by_handle($diaspora_handle);
518 if(is_array($person) && x($person,'pubkey'))
519 $key = $person['pubkey'];
521 logger('diaspora_comment: unable to find author details');
526 if(! rsa_verify($author_signed_data,$author_signature,$key,'sha')) {
527 logger('diaspora_comment: verification failed.');
532 if($parent_author_signature) {
533 $owner_signed_data = $guid . ';' . $parent_guid . ';' . $text . ';' . $diaspora_handle;
535 $parent_author_signature = base64_decode($parent_author_signature);
539 if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha')) {
540 logger('diaspora_comment: owner verification failed.');
545 // Phew! Everything checks out. Now create an item.
547 $body = diaspora2bb($text);
549 $message_id = $diaspora_handle . ':' . $guid;
552 $datarray['uid'] = $importer['uid'];
553 $datarray['contact-id'] = $contact['id'];
554 $datarray['wall'] = $parent_item['wall'];
555 $datarray['gravity'] = GRAVITY_COMMENT;
556 $datarray['guid'] = $guid;
557 $datarray['uri'] = $message_id;
558 $datarray['parent-uri'] = $parent_item['uri'];
560 // No timestamps for comments? OK, we'll the use current time.
561 $datarray['created'] = $datarray['edited'] = datetime_convert();
562 $datarray['private'] = $parent_item['private'];
564 $datarray['owner-name'] = $contact['name'];
565 $datarray['owner-link'] = $contact['url'];
566 $datarray['owner-avatar'] = $contact['thumb'];
568 $datarray['author-name'] = $person['name'];
569 $datarray['author-link'] = $person['url'];
570 $datarray['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']);
571 $datarray['body'] = $body;
572 $datarray['app'] = 'Diaspora';
574 $message_id = item_store($datarray);
576 if(! $parent_author_signature) {
577 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
579 dbesc($author_signed_data),
580 dbesc(base64_encode($author_signature)),
581 dbesc($diaspora_handle)
584 // if the message isn't already being relayed, notify others
585 // the existence of parent_author_signature means the parent_author or owner
586 // is already relaying.
588 proc_run('php','include/notifier.php','comment',$message_id);
593 function diaspora_photo($importer,$xml,$msg) {
595 $remote_photo_path = notags(unxmlify($xml->remote_photo_path));
597 $remote_photo_name = notags(unxmlify($xml->remote_photo_name));
599 $status_message_guid = notags(unxmlify($xml->status_message_guid));
601 $guid = notags(unxmlify($xml->guid));
603 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
605 $public = notags(unxmlify($xml->public));
607 $created_at = notags(unxmlify($xml_created_at));
610 $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
614 if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
615 logger('diaspora_photo: Ignoring this author.');
616 http_status_exit(202);
620 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
621 intval($importer['uid']),
622 dbesc($status_message_guid)
625 logger('diaspora_photo: parent item not found: parent: ' . $parent_guid . ' item: ' . $guid);
628 $parent_item = $r[0];
630 $link_text = '[img]' . $remote_photo_path . $remote_photo_name . '[/img]' . "\n";
632 $r = q("update item set `body` = '%s' where `id` = %d and `uid` = %d limit 1",
633 dbesc($link_text . $parent_item['body']),
634 intval($parent_item['id']),
635 intval($parent_item['uid'])
644 function diaspora_like($importer,$xml,$msg) {
647 $guid = notags(unxmlify($xml->guid));
648 $parent_guid = notags(unxmlify($xml->parent_guid));
649 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
650 $target_type = notags(unxmlify($xml->target_type));
651 $positive = notags(unxmlify($xml->positive));
652 $author_signature = notags(unxmlify($xml->author_signature));
654 $parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
656 // likes on comments not supported here and likes on photos not supported by Diaspora
658 if($target_type !== 'Post')
661 $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
665 if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
666 logger('diaspora_like: Ignoring this author.');
667 http_status_exit(202);
671 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
672 intval($importer['uid']),
676 logger('diaspora_like: parent item not found: ' . $guid);
680 $parent_item = $r[0];
682 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
683 intval($importer['uid']),
687 if($positive === 'true') {
688 logger('diaspora_like: duplicate like: ' . $guid);
691 if($positive === 'false') {
692 q("UPDATE `item` SET `deleted` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
694 intval($importer['uid'])
697 // send notification via proc_run()
701 if($positive === 'false') {
702 logger('diaspora_like: unlike received with no corresponding like');
706 $author_signed_data = $guid . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $diaspora_handle;
708 $author_signature = base64_decode($author_signature);
710 if(strcasecmp($diaspora_handle,$msg['author']) == 0) {
715 $person = find_diaspora_person_by_handle($diaspora_handle);
716 if(is_array($person) && x($person,'pubkey'))
717 $key = $person['pubkey'];
719 logger('diaspora_like: unable to find author details');
724 if(! rsa_verify($author_signed_data,$author_signature,$key,'sha')) {
725 logger('diaspora_like: verification failed.');
729 if($parent_author_signature) {
730 // $owner_signed_data = $guid . ';' . $parent_guid . ';' . $target_type . ';' . $positive . ';' . $msg['author'];
731 $owner_signed_data = $guid . ';' . $parent_guid . ';' . $target_type . ';' . $positive . ';' . $diaspora_handle;
733 $parent_author_signature = base64_decode($parent_author_signature);
737 if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha')) {
738 logger('diaspora_like: owner verification failed.');
743 // Phew! Everything checks out. Now create an item.
745 $uri = $diaspora_handle . ':' . $guid;
747 $activity = ACTIVITY_LIKE;
748 $post_type = (($parent_item['resource-id']) ? t('photo') : t('status'));
749 $objtype = (($parent_item['resource-id']) ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE );
750 $link = xmlify('<link rel="alternate" type="text/html" href="' . $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $parent_item['id'] . '" />' . "\n") ;
751 $body = $parent_item['body'];
756 <type>$objtype</type>
758 <id>{$parent_item['uri']}</id>
761 <content>$body</content>
764 $bodyverb = t('%1$s likes %2$s\'s %3$s');
769 $arr['uid'] = $importer['uid'];
770 $arr['guid'] = $guid;
771 $arr['contact-id'] = $contact['id'];
772 $arr['type'] = 'activity';
773 $arr['wall'] = $parent_item['wall'];
774 $arr['gravity'] = GRAVITY_LIKE;
775 $arr['parent'] = $parent_item['id'];
776 $arr['parent-uri'] = $parent_item['uri'];
778 $arr['owner-name'] = $contact['name'];
779 $arr['owner-link'] = $contact['url'];
780 $arr['owner-avatar'] = $contact['thumb'];
782 $arr['author-name'] = $person['name'];
783 $arr['author-link'] = $person['url'];
784 $arr['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']);
786 $ulink = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
787 $alink = '[url=' . $parent_item['author-link'] . ']' . $parent_item['author-name'] . '[/url]';
788 $plink = '[url=' . $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $parent_item['id'] . ']' . $post_type . '[/url]';
789 $arr['body'] = sprintf( $bodyverb, $ulink, $alink, $plink );
791 $arr['app'] = 'Diaspora';
793 $arr['private'] = $parent_item['private'];
794 $arr['verb'] = $activity;
795 $arr['object-type'] = $objtype;
796 $arr['object'] = $obj;
799 $arr['last-child'] = 0;
801 $message_id = item_store($arr);
803 if(! $parent_author_signature) {
804 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
806 dbesc($author_signed_data),
807 dbesc(base64_encode($author_signature)),
808 dbesc($diaspora_handle)
812 // if the message isn't already being relayed, notify others
813 // the existence of parent_author_signature means the parent_author or owner
814 // is already relaying.
816 if(! $parent_author_signature)
817 proc_run('php','include/notifier.php','comment',$message_id);
822 function diaspora_retraction($importer,$xml) {
824 $guid = notags(unxmlify($xml->guid));
825 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
826 $type = notags(unxmlify($xml->type));
828 $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
832 if($type === 'Person') {
833 contact_remove($contact['id']);
835 elseif($type === 'Post') {
836 $r = q("select * from item where guid = '%s' and uid = %d limit 1",
838 intval($importer['uid'])
841 if(link_compare($r[0]['author-link'],$contact['url'])) {
842 q("update item set `deleted` = 1, `changed` = '%s' where `id` = %d limit 1",
843 dbesc(datetime_convert()),
850 http_exit_status(202);
854 function diaspora_share($me,$contact) {
856 $myaddr = $me['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
857 $theiraddr = $contact['addr'];
859 $tpl = get_markup_template('diaspora_share.tpl');
860 $msg = replace_macros($tpl, array(
861 '$sender' => $myaddr,
862 '$recipient' => $theiraddr
865 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey'])));
867 return(diaspora_transmit($owner,$contact,$slap));
870 function diaspora_unshare($me,$contact) {
873 $myaddr = $me['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
875 $tpl = get_markup_template('diaspora_retract.tpl');
876 $msg = replace_macros($tpl, array(
877 '$guid' => $me['guid'],
882 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey'])));
884 return(diaspora_transmit($owner,$contact,$slap));
890 function diaspora_send_status($item,$owner,$contact) {
893 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
894 $theiraddr = $contact['addr'];
898 $body = $item['body'];
900 $cnt = preg_match_all('|\[img\](.*?)\[\/img\]|',$body,$matches,PREG_SET_ORDER);
902 foreach($matches as $mtch) {
904 $detail['str'] = $mtch[0];
905 $detail['path'] = dirname($mtch[1]) . '/';
906 $detail['file'] = basename($mtch[1]);
907 $detail['guid'] = $item['guid'];
908 $detail['handle'] = $myaddr;
910 $body = str_replace($detail['str'],t('link'),$body);
914 $body = xmlify(html_entity_decode(bb2diaspora($body)));
916 $public = (($item['private']) ? 'false' : 'true');
918 require_once('include/datetime.php');
919 $created = datetime_convert('UTC','UTC',$item['created'],'Y-m-d h:i:s \U\T\C');
921 $tpl = get_markup_template('diaspora_post.tpl');
922 $msg = replace_macros($tpl, array(
924 '$guid' => $item['guid'],
925 '$handle' => xmlify($myaddr),
926 '$public' => $public,
927 '$created' => $created
930 logger('diaspora_send_status: ' . $owner['username'] . ' -> ' . $contact['name'] . ' base message: ' . $msg, LOGGER_DATA);
932 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
934 $return_code = diaspora_transmit($owner,$contact,$slap);
937 diaspora_send_images($item,$owner,$contact,$images);
944 function diaspora_send_images($item,$owner,$contact,$images) {
948 $mysite = substr($a->get_baseurl(),strpos($a->get_baseurl(),'://') + 3) . '/photo';
950 $tpl = get_markup_template('diaspora_photo.tpl');
951 foreach($images as $image) {
952 if(! stristr($image['path'],$mysite))
954 $resource = str_replace('.jpg','',$image['file']);
955 $resource = substr($resource,0,strpos($resource,'-'));
957 $r = q("select * from photo where `resource-id` = '%s' and `uid` = %d limit 1",
959 intval($owner['uid'])
963 $public = (($r[0]['allow_cid'] || $r[0]['allow_gid'] || $r[0]['deny_cid'] || $r[0]['deny_gid']) ? 'false' : 'true' );
964 $msg = replace_macros($tpl,array(
965 '$path' => xmlify($image['path']),
966 '$filename' => xmlify($image['file']),
967 '$msg_guid' => xmlify($image['guid']),
968 '$guid' => xmlify($r[0]['guid']),
969 '$handle' => xmlify($image['handle']),
970 '$public' => xmlify($public),
971 '$created_at' => xmlify(datetime_convert('UTC','UTC',$r[0]['created'],'Y-m-d h:i:s \U\T\C'))
975 logger('diaspora_send_photo: base message: ' . $msg, LOGGER_DATA);
976 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
978 diaspora_transmit($owner,$contact,$slap);
983 function diaspora_send_followup($item,$owner,$contact) {
986 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
987 $theiraddr = $contact['addr'];
989 $p = q("select guid from item where parent = %d limit 1",
993 $parent_guid = $p[0]['guid'];
997 if($item['verb'] === ACTIVITY_LIKE) {
998 $tpl = get_markup_template('diaspora_like.tpl');
1000 $target_type = 'Post';
1001 $positive = (($item['deleted']) ? 'false' : 'true');
1004 $tpl = get_markup_template('diaspora_comment.tpl');
1008 $text = html_entity_decode(bb2diaspora($item['body']));
1013 $signed_text = $item['guid'] . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $myaddr;
1015 $signed_text = $item['guid'] . ';' . $parent_guid . ';' . $text . ';' . $myaddr;
1017 $authorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha'));
1019 $msg = replace_macros($tpl,array(
1020 '$guid' => xmlify($item['guid']),
1021 '$parent_guid' => xmlify($parent_guid),
1022 '$target_type' =>xmlify($target_type),
1023 '$authorsig' => xmlify($authorsig),
1024 '$body' => xmlify($text),
1025 '$positive' => xmlify($positive),
1026 '$handle' => xmlify($myaddr)
1029 logger('diaspora_followup: base message: ' . $msg, LOGGER_DATA);
1031 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
1033 return(diaspora_transmit($owner,$contact,$slap));
1037 function diaspora_send_relay($item,$owner,$contact) {
1041 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
1042 $theiraddr = $contact['addr'];
1045 $p = q("select guid from item where parent = %d limit 1",
1049 $parent_guid = $p[0]['guid'];
1053 if($item['verb'] === ACTIVITY_LIKE) {
1054 $tpl = get_markup_template('diaspora_like_relay.tpl');
1056 $target_type = 'Post';
1057 $positive = (($item['deleted']) ? 'false' : 'true');
1060 $tpl = get_markup_template('diaspora_comment_relay.tpl');
1064 $itemcontact = q("select * from contact where `id` = %d limit 1",
1065 intval($item['contact-id'])
1067 if(count($itemcontact)) {
1068 if(! $itemcontact[0]['self']) {
1069 $prefix = sprintf( t('[Relayed] Comment authored by %s from network %s'),
1070 '['. $item['author-name'] . ']' . '(' . $item['author-link'] . ')',
1071 network_to_name($itemcontact['network'])) . "\n";
1072 $body = $prefix . $body.
1076 $text = html_entity_decode(bb2diaspora($item['body']));
1078 // fetch the original signature if somebody sent the post to us to relay
1079 // If we are relaying for a reply originating here, there wasn't a 'send to relay'
1080 // action. It wasn't needed. In that case create the original signature and the
1081 // owner (parent author) signature
1083 $r = q("select * from sign where iid = %d limit 1",
1088 $signed_text = $orig_sign['signed_text'];
1089 $authorsig = $orig_sign['signature'];
1097 $signed_text = $item['guid'] . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $myaddr;
1099 $signed_text = $item['guid'] . ';' . $parent_guid . ';' . $text . ';' . $myaddr;
1101 $authorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha'));
1103 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
1104 intval($item['id']),
1105 dbesc($signed_text),
1106 dbesc(base64_encode($authorsig)),
1114 $parentauthorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha'));
1116 $msg = replace_macros($tpl,array(
1117 '$guid' => xmlify($item['guid']),
1118 '$parent_guid' => xmlify($parent_guid),
1119 '$target_type' =>xmlify($target_type),
1120 '$authorsig' => xmlify($orig_sign['signature']),
1121 '$parentsig' => xmlify($parentauthorsig),
1122 '$body' => xmlify($text),
1123 '$positive' => xmlify($positive),
1124 '$handle' => xmlify($myaddr)
1127 logger('diaspora_relay_comment: base message: ' . $msg, LOGGER_DATA);
1129 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
1131 return(diaspora_transmit($owner,$contact,$slap));
1137 function diaspora_send_retraction($item,$owner,$contact) {
1140 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
1142 $tpl = get_markup_template('diaspora_retract.tpl');
1143 $msg = replace_macros($tpl, array(
1144 '$guid' => $item['guid'],
1146 '$handle' => $myaddr
1149 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
1151 return(diaspora_transmit($owner,$contact,$slap));
1156 function diaspora_transmit($owner,$contact,$slap) {
1160 post_url($contact['notify'] . '/',$slap);
1161 $return_code = $a->get_curl_code();
1162 logger('diaspora_transmit: returns: ' . $return_code);
1164 if(! $return_code) {
1165 logger('diaspora_transmit: queue message');
1166 // queue message for redelivery
1167 q("INSERT INTO `queue` ( `cid`, `created`, `last`, `content`)
1168 VALUES ( %d, '%s', '%s', '%s') ",
1169 intval($contact['id']),
1170 dbesc(datetime_convert()),
1171 dbesc(datetime_convert()),
1176 return(($return_code) ? $return_code : (-1));