3 require_once('include/crypto.php');
4 require_once('include/items.php');
5 require_once('include/bb2diaspora.php');
7 function diaspora_dispatch($importer,$msg) {
9 $parsed_xml = parse_xml_string($msg['message'],false);
11 $xmlbase = $parsed_xml->post;
13 if($xmlbase->request) {
14 diaspora_request($importer,$xmlbase->request);
16 elseif($xmlbase->status_message) {
17 diaspora_post($importer,$xmlbase->status_message);
19 elseif($xmlbase->comment) {
20 diaspora_comment($importer,$xmlbase->comment,$msg);
22 elseif($xmlbase->like) {
23 diaspora_like($importer,$xmlbase->like,$msg);
25 elseif($xmlbase->retraction) {
26 diaspora_retraction($importer,$xmlbase->retraction,$msg);
28 elseif($xmlbase->photo) {
29 diaspora_photo($importer,$xmlbase->photo,$msg);
32 logger('diaspora_dispatch: unknown message type: ' . print_r($xmlbase,true));
37 function diaspora_get_contact_by_handle($uid,$handle) {
38 $r = q("SELECT * FROM `contact` WHERE `network` = '%s' AND `uid` = %d AND `addr` = '%s' LIMIT 1",
39 dbesc(NETWORK_DIASPORA),
48 function find_diaspora_person_by_handle($handle) {
49 $r = q("select * from fcontact where network = '%s' and addr = '%s' limit 1",
50 dbesc(NETWORK_DIASPORA),
54 // update record occasionally so it doesn't get stale
55 $d = strtotime($r[0]['updated'] . ' +00:00');
56 if($d < strtotime('now - 14 days')) {
57 q("delete from fcontact where id = %d limit 1",
64 require_once('include/Scrape.php');
65 $r = probe_url($handle, PROBE_DIASPORA);
66 if((count($r)) && ($r['network'] === NETWORK_DIASPORA)) {
74 function get_diaspora_key($uri) {
75 logger('Fetching diaspora key for: ' . $uri);
77 $r = find_diaspora_person_by_handle($uri);
84 function diaspora_msg_build($msg,$user,$contact,$prvkey,$pubkey) {
87 logger('diaspora_msg_build: ' . $msg, LOGGER_DATA);
89 $inner_aes_key = random_string(32);
90 $b_inner_aes_key = base64_encode($inner_aes_key);
91 $inner_iv = random_string(16);
92 $b_inner_iv = base64_encode($inner_iv);
94 $outer_aes_key = random_string(32);
95 $b_outer_aes_key = base64_encode($outer_aes_key);
96 $outer_iv = random_string(16);
97 $b_outer_iv = base64_encode($outer_iv);
99 $handle = 'acct:' . $user['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
101 $padded_data = pkcs5_pad($msg,16);
102 $inner_encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $padded_data, MCRYPT_MODE_CBC, $inner_iv);
104 $b64_data = base64_encode($inner_encrypted);
107 $b64url_data = base64url_encode($b64_data);
108 $b64url_stripped = str_replace(array("\n","\r"," ","\t"),array('','','',''),$b64url_data);
109 $lines = str_split($b64url_stripped,60);
110 $data = implode("\n",$lines);
111 $data = $data . (($data[-1] != "\n") ? "\n" : '') ;
112 $type = 'application/atom+xml';
113 $encoding = 'base64url';
116 $signable_data = $data . '.' . base64url_encode($type) . "\n" . '.'
117 . base64url_encode($encoding) . "\n" . '.' . base64url_encode($alg) . "\n";
119 $signature = rsa_sign($signable_data,$prvkey);
120 $sig = base64url_encode($signature);
122 $decrypted_header = <<< EOT
125 <aes_key>$b_inner_aes_key</aes_key>
127 <name>{$user['username']}</name>
133 $decrypted_header = pkcs5_pad($decrypted_header,16);
135 $ciphertext = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $outer_aes_key, $decrypted_header, MCRYPT_MODE_CBC, $outer_iv);
137 $outer_json = json_encode(array('iv' => $b_outer_iv,'key' => $b_outer_aes_key));
139 $encrypted_outer_key_bundle = '';
140 openssl_public_encrypt($outer_json,$encrypted_outer_key_bundle,$pubkey);
142 logger('outer_bundle_encrypt: ' . openssl_error_string());
143 $b64_encrypted_outer_key_bundle = base64_encode($encrypted_outer_key_bundle);
145 logger('outer_bundle: ' . $b64_encrypted_outer_key_bundle . ' key: ' . $pubkey);
147 $encrypted_header_json_object = json_encode(array('aes_key' => base64_encode($encrypted_outer_key_bundle),
148 'ciphertext' => base64_encode($ciphertext)));
149 $cipher_json = base64_encode($encrypted_header_json_object);
151 $encrypted_header = '<encrypted_header>' . $cipher_json . '</encrypted_header>';
154 <?xml version='1.0' encoding='UTF-8'?>
155 <entry xmlns='http://www.w3.org/2005/Atom'>
157 <me:env xmlns:me="http://salmon-protocol.org/ns/magic-env">
158 <me:encoding>base64url</me:encoding>
159 <me:alg>RSA-SHA256</me:alg>
160 <me:data type="application/atom+xml">$data</me:data>
161 <me:sig>$sig</me:sig>
166 logger('diaspora_msg_build: magic_env: ' . $magic_env, LOGGER_DATA);
173 * diaspora_decode($importer,$xml)
174 * array $importer -> from user table
175 * string $xml -> urldecoded Diaspora salmon
178 * 'message' -> decoded Diaspora XML message
179 * 'author' -> author diaspora handle
180 * 'key' -> author public key (converted to pkcs#8)
182 * Author and key are used elsewhere to save a lookup for verifying replies and likes
186 function diaspora_decode($importer,$xml) {
188 $basedom = parse_xml_string($xml);
190 $atom = $basedom->children(NAMESPACE_ATOM1);
192 // Diaspora devs: This is kind of sucky - 'encrypted_header' does not belong in the atom namespace
194 $encrypted_header = json_decode(base64_decode($atom->encrypted_header));
196 $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
197 $ciphertext = base64_decode($encrypted_header->ciphertext);
199 $outer_key_bundle = '';
200 openssl_private_decrypt($encrypted_aes_key_bundle,$outer_key_bundle,$importer['prvkey']);
202 $j_outer_key_bundle = json_decode($outer_key_bundle);
204 $outer_iv = base64_decode($j_outer_key_bundle->iv);
205 $outer_key = base64_decode($j_outer_key_bundle->key);
207 $decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $outer_key, $ciphertext, MCRYPT_MODE_CBC, $outer_iv);
210 $decrypted = pkcs5_unpad($decrypted);
213 * $decrypted now contains something like
216 * <iv>8e+G2+ET8l5BPuW0sVTnQw==</iv>
217 * <aes_key>UvSMb4puPeB14STkcDWq+4QE302Edu15oaprAQSkLKU=</aes_key>
219 * <name>Ryan Hughes</name>
220 * <uri>acct:galaxor@diaspora.pirateship.org</uri>
222 * </decrypted_header>
225 logger('decrypted: ' . $decrypted);
226 $idom = parse_xml_string($decrypted,false);
228 $inner_iv = base64_decode($idom->iv);
229 $inner_aes_key = base64_decode($idom->aes_key);
231 $author_link = str_replace('acct:','',$idom->author->uri);
233 $dom = $basedom->children(NAMESPACE_SALMON_ME);
235 // figure out where in the DOM tree our data is hiding
237 if($dom->provenance->data)
238 $base = $dom->provenance;
239 elseif($dom->env->data)
245 logger('mod-diaspora: unable to locate salmon data in xml ');
246 http_status_exit(400);
250 // Stash the signature away for now. We have to find their key or it won't be good for anything.
251 $signature = base64url_decode($base->sig);
255 // strip whitespace so our data element will return to one big base64 blob
256 $data = str_replace(array(" ","\t","\r","\n"),array("","","",""),$base->data);
258 // Add back the 60 char linefeeds
260 // This completely violates the entire principle of salmon magic signatures,
261 // which was to have a message signing format that was completely ambivalent to linefeeds
262 // and transport whitespace mangling, and base64 wrapping rules. Guess what? PHP and Ruby
263 // use different linelengths for base64 output.
265 $lines = str_split($data,60);
266 $data = implode("\n",$lines);
269 // stash away some other stuff for later
271 $type = $base->data[0]->attributes()->type[0];
272 $keyhash = $base->sig[0]->attributes()->keyhash[0];
273 $encoding = $base->encoding;
276 // I can't even begin to tell you how sucky this is. Please read the spec.
278 $signed_data = $data . (($data[-1] != "\n") ? "\n" : '') . '.' . base64url_encode($type) . "\n" . '.' . base64url_encode($encoding) . "\n" . '.' . base64url_encode($alg) . "\n";
282 $data = base64url_decode($data);
284 // Now pull out the inner encrypted blob
286 $inner_encrypted = base64_decode($data);
289 $inner_decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $inner_encrypted, MCRYPT_MODE_CBC, $inner_iv);
291 $inner_decrypted = pkcs5_unpad($inner_decrypted);
294 logger('mod-diaspora: Could not retrieve author URI.');
295 http_status_exit(400);
298 // Once we have the author URI, go to the web and try to find their public key
299 // (first this will look it up locally if it is in the fcontact cache)
300 // This will also convert diaspora public key from pkcs#1 to pkcs#8
302 logger('mod-diaspora: Fetching key for ' . $author_link );
303 $key = get_diaspora_key($author_link);
306 logger('mod-diaspora: Could not retrieve author key.');
307 http_status_exit(400);
310 $verify = rsa_verify($signed_data,$signature,$key);
313 logger('mod-diaspora: Message did not verify. Discarding.');
314 http_status_exit(400);
317 logger('mod-diaspora: Message verified.');
319 return array('message' => $inner_decrypted, 'author' => $author_link, 'key' => $key);
325 function diaspora_request($importer,$xml) {
327 $sender_handle = unxmlify($xml->sender_handle);
328 $recipient_handle = unxmlify($xml->recipient_handle);
330 if(! $sender_handle || ! $recipient_handle)
333 $contact = diaspora_get_contact_by_handle($importer['uid'],$sender_handle);
338 // perhaps we were already sharing with this person. Now they're sharing with us.
339 // That makes us friends.
341 if($contact['rel'] == CONTACT_IS_FOLLOWER) {
342 q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
343 intval(CONTACT_IS_FRIEND),
344 intval($contact['id']),
345 intval($importer['uid'])
348 // send notification?
352 $ret = find_diaspora_person_by_handle($sender_handle);
355 if((! count($ret)) || ($ret['network'] != NETWORK_DIASPORA)) {
356 logger('diaspora_request: Cannot resolve diaspora handle ' . $sender_handle . ' for ' . $recipient_handle);
360 $r = q("INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
361 VALUES ( %d, '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s',%d,%d) ",
362 intval($importer['uid']),
363 dbesc($ret['network']),
369 dbesc($ret['photo']),
370 dbesc($ret['pubkey']),
371 dbesc($ret['notify']),
377 // find the contact record we just created
379 $contact_record = diaspora_get_contact_by_handle($importer['uid'],$sender_handle);
381 $hash = random_string() . (string) time(); // Generate a confirm_key
383 if($contact_record) {
384 $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime` )
385 VALUES ( %d, %d, %d, %d, '%s', '%s', '%s' )",
386 intval($importer['uid']),
387 intval($contact_record['id']),
390 dbesc( t('Sharing notification from Diaspora network')),
392 dbesc(datetime_convert())
399 function diaspora_post($importer,$xml) {
401 $guid = notags(unxmlify($xml->guid));
402 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
404 $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
408 if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
409 logger('diaspora_post: Ignoring this author.');
410 http_status_exit(202);
414 $message_id = $diaspora_handle . ':' . $guid;
415 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `guid` = '%s' LIMIT 1",
416 intval($importer['uid']),
423 // allocate a guid on our system - we aren't fixing any collisions.
424 // we're ignoring them
426 $g = q("select * from guid where guid = '%s' limit 1",
430 q("insert into guid ( guid ) values ( '%s' )",
435 $created = unxmlify($xml->created_at);
436 $private = ((unxmlify($xml->public) == 'false') ? 1 : 0);
438 $body = diaspora2bb($xml->raw_message);
441 $datarray['uid'] = $importer['uid'];
442 $datarray['contact-id'] = $contact['id'];
443 $datarray['wall'] = 0;
444 $datarray['guid'] = $guid;
445 $datarray['uri'] = $datarray['parent-uri'] = $message_id;
446 $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
447 $datarray['private'] = $private;
448 $datarray['parent'] = 0;
449 $datarray['owner-name'] = $contact['name'];
450 $datarray['owner-link'] = $contact['url'];
451 $datarray['owner-avatar'] = $contact['thumb'];
452 $datarray['author-name'] = $contact['name'];
453 $datarray['author-link'] = $contact['url'];
454 $datarray['author-avatar'] = $contact['thumb'];
455 $datarray['body'] = $body;
457 item_store($datarray);
463 function diaspora_comment($importer,$xml,$msg) {
465 $guid = notags(unxmlify($xml->guid));
466 $parent_guid = notags(unxmlify($xml->parent_guid));
467 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
468 $target_type = notags(unxmlify($xml->target_type));
469 $text = unxmlify($xml->text);
470 $author_signature = notags(unxmlify($xml->author_signature));
472 $parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
476 $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
480 if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
481 logger('diaspora_comment: Ignoring this author.');
482 http_status_exit(202);
486 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
487 intval($importer['uid']),
491 logger('diaspora_comment: parent item not found: parent: ' . $parent_guid . ' item: ' . $guid);
494 $parent_item = $r[0];
496 $author_signed_data = $guid . ';' . $parent_guid . ';' . $text . ';' . $diaspora_handle;
498 $author_signature = base64_decode($author_signature);
500 if(strcasecmp($diaspora_handle,$msg['author']) == 0) {
505 $person = find_diaspora_person_by_handle($diaspora_handle);
507 if(is_array($person) && x($person,'pubkey'))
508 $key = $person['pubkey'];
510 logger('diaspora_comment: unable to find author details');
515 if(! rsa_verify($author_signed_data,$author_signature,$key,'sha')) {
516 logger('diaspora_comment: verification failed.');
521 if($parent_author_signature) {
522 $owner_signed_data = $guid . ';' . $parent_guid . ';' . $text . ';' . $diaspora_handle;
524 $parent_author_signature = base64_decode($parent_author_signature);
528 if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha')) {
529 logger('diaspora_comment: owner verification failed.');
534 // Phew! Everything checks out. Now create an item.
536 $body = diaspora2bb($text);
538 $message_id = $diaspora_handle . ':' . $guid;
541 $datarray['uid'] = $importer['uid'];
542 $datarray['contact-id'] = $contact['id'];
543 $datarray['wall'] = $parent_item['wall'];
544 $datarray['gravity'] = GRAVITY_COMMENT;
545 $datarray['guid'] = $guid;
546 $datarray['uri'] = $message_id;
547 $datarray['parent-uri'] = $parent_item['uri'];
549 // No timestamps for comments? OK, we'll the use current time.
550 $datarray['created'] = $datarray['edited'] = datetime_convert();
551 $datarray['private'] = $parent_item['private'];
553 $datarray['owner-name'] = $contact['name'];
554 $datarray['owner-link'] = $contact['url'];
555 $datarray['owner-avatar'] = $contact['thumb'];
557 $datarray['author-name'] = $person['name'];
558 $datarray['author-link'] = $person['url'];
559 $datarray['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']);
560 $datarray['body'] = $body;
562 $message_id = item_store($datarray);
564 if(! $parent_author_signature) {
565 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
567 dbesc($author_signed_data),
568 dbesc(base64_encode($author_signature)),
569 dbesc($diaspora_handle)
572 // if the message isn't already being relayed, notify others
573 // the existence of parent_author_signature means the parent_author or owner
574 // is already relaying.
576 proc_run('php','include/notifier.php','comment',$message_id);
581 function diaspora_photo($importer,$xml,$msg) {
583 $remote_photo_path = notags(unxmlify($xml->remote_photo_path));
585 $remote_photo_name = notags(unxmlify($xml->remote_photo_name));
587 $status_message_guid = notags(unxmlify($xml->status_message_guid));
589 $guid = notags(unxmlify($xml->guid));
591 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
593 $public = notags(unxmlify($xml->public));
595 $created_at = notags(unxmlify($xml_created_at));
598 $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
602 if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
603 logger('diaspora_photo: Ignoring this author.');
604 http_status_exit(202);
608 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
609 intval($importer['uid']),
610 dbesc($status_message_guid)
613 logger('diaspora_photo: parent item not found: parent: ' . $parent_guid . ' item: ' . $guid);
616 $parent_item = $r[0];
618 $link_text = '[img]' . $remote_photo_path . $remote_photo_name . '[/img]' . "\n";
620 $r = q("update item set `body` = '%s' where `id` = %d and `uid` = %d limit 1",
621 dbesc($link_text . $parent_item['body']),
622 intval($parent_item['id']),
623 intval($parent_item['uid'])
632 function diaspora_like($importer,$xml,$msg) {
635 $guid = notags(unxmlify($xml->guid));
636 $parent_guid = notags(unxmlify($xml->parent_guid));
637 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
638 $target_type = notags(unxmlify($xml->target_type));
639 $positive = notags(unxmlify($xml->positive));
640 $author_signature = notags(unxmlify($xml->author_signature));
642 $parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
644 // likes on comments not supported here and likes on photos not supported by Diaspora
646 if($target_type !== 'Post')
649 $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
653 if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
654 logger('diaspora_like: Ignoring this author.');
655 http_status_exit(202);
659 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
660 intval($importer['uid']),
664 logger('diaspora_like: parent item not found: ' . $guid);
668 $parent_item = $r[0];
670 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
671 intval($importer['uid']),
675 if($positive === 'true') {
676 logger('diaspora_like: duplicate like: ' . $guid);
679 if($positive === 'false') {
680 q("UPDATE `item` SET `deleted` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
682 intval($importer['uid'])
685 // send notification via proc_run()
689 if($positive === 'false') {
690 logger('diaspora_like: unlike received with no corresponding like');
694 $author_signed_data = $guid . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $diaspora_handle;
696 $author_signature = base64_decode($author_signature);
698 if(strcasecmp($diaspora_handle,$msg['author']) == 0) {
703 $person = find_diaspora_person_by_handle($diaspora_handle);
704 if(is_array($person) && x($person,'pubkey'))
705 $key = $person['pubkey'];
707 logger('diaspora_like: unable to find author details');
712 if(! rsa_verify($author_signed_data,$author_signature,$key,'sha')) {
713 logger('diaspora_like: verification failed.');
717 if($parent_author_signature) {
718 // $owner_signed_data = $guid . ';' . $parent_guid . ';' . $target_type . ';' . $positive . ';' . $msg['author'];
719 $owner_signed_data = $guid . ';' . $parent_guid . ';' . $target_type . ';' . $positive . ';' . $diaspora_handle;
721 $parent_author_signature = base64_decode($parent_author_signature);
725 if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha')) {
726 logger('diaspora_like: owner verification failed.');
731 // Phew! Everything checks out. Now create an item.
733 $uri = $diaspora_handle . ':' . $guid;
735 $activity = ACTIVITY_LIKE;
736 $post_type = (($parent_item['resource-id']) ? t('photo') : t('status'));
737 $objtype = (($parent_item['resource-id']) ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE );
738 $link = xmlify('<link rel="alternate" type="text/html" href="' . $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $parent_item['id'] . '" />' . "\n") ;
739 $body = $parent_item['body'];
744 <type>$objtype</type>
746 <id>{$parent_item['uri']}</id>
749 <content>$body</content>
752 $bodyverb = t('%1$s likes %2$s\'s %3$s');
757 $arr['uid'] = $importer['uid'];
758 $arr['guid'] = $guid;
759 $arr['contact-id'] = $contact['id'];
760 $arr['type'] = 'activity';
761 $arr['wall'] = $parent_item['wall'];
762 $arr['gravity'] = GRAVITY_LIKE;
763 $arr['parent'] = $parent_item['id'];
764 $arr['parent-uri'] = $parent_item['uri'];
766 $arr['owner-name'] = $contact['name'];
767 $arr['owner-link'] = $contact['url'];
768 $arr['owner-avatar'] = $contact['thumb'];
770 $arr['author-name'] = $person['name'];
771 $arr['author-link'] = $person['url'];
772 $arr['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']);
774 $ulink = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
775 $alink = '[url=' . $parent_item['author-link'] . ']' . $parent_item['author-name'] . '[/url]';
776 $plink = '[url=' . $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $parent_item['id'] . ']' . $post_type . '[/url]';
777 $arr['body'] = sprintf( $bodyverb, $ulink, $alink, $plink );
779 $arr['private'] = $parent_item['private'];
780 $arr['verb'] = $activity;
781 $arr['object-type'] = $objtype;
782 $arr['object'] = $obj;
785 $arr['last-child'] = 0;
787 $message_id = item_store($arr);
789 if(! $parent_author_signature) {
790 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
792 dbesc($author_signed_data),
793 dbesc(base64_encode($author_signature)),
794 dbesc($diaspora_handle)
798 // if the message isn't already being relayed, notify others
799 // the existence of parent_author_signature means the parent_author or owner
800 // is already relaying.
802 if(! $parent_author_signature)
803 proc_run('php','include/notifier.php','comment',$message_id);
808 function diaspora_retraction($importer,$xml) {
810 $guid = notags(unxmlify($xml->guid));
811 $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
812 $type = notags(unxmlify($xml->type));
814 $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
818 if($type === 'Person') {
819 contact_remove($contact['id']);
821 elseif($type === 'Post') {
822 $r = q("select * from item where guid = '%s' and uid = %d limit 1",
824 intval($importer['uid'])
827 if(link_compare($r[0]['author-link'],$contact['url'])) {
828 q("update item set `deleted` = 1, `changed` = '%s' where `id` = %d limit 1",
829 dbesc(datetime_convert()),
836 http_exit_status(202);
840 function diaspora_share($me,$contact) {
842 $myaddr = $me['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
843 $theiraddr = $contact['addr'];
845 $tpl = get_markup_template('diaspora_share.tpl');
846 $msg = replace_macros($tpl, array(
847 '$sender' => $myaddr,
848 '$recipient' => $theiraddr
851 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey'])));
853 return(diaspora_transmit($owner,$contact,$slap));
856 function diaspora_unshare($me,$contact) {
859 $myaddr = $me['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
861 $tpl = get_markup_template('diaspora_retract.tpl');
862 $msg = replace_macros($tpl, array(
863 '$guid' => $me['guid'],
868 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey'])));
870 return(diaspora_transmit($owner,$contact,$slap));
876 function diaspora_send_status($item,$owner,$contact) {
879 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
880 $theiraddr = $contact['addr'];
884 $body = $item['body'];
886 $cnt = preg_match_all('|\[img\](.*?)\[\/img\]|',$body,$matches,PREG_SET_ORDER);
888 foreach($matches as $mtch) {
890 $detail['str'] = $mtch[0];
891 $detail['path'] = dirname($mtch[1]) . '/';
892 $detail['file'] = basename($mtch[1]);
893 $detail['guid'] = $item['guid'];
894 $detail['handle'] = $myaddr;
896 $body = str_replace($detail['str'],t('link'),$body);
900 $body = xmlify(bb2diaspora($body));
901 $public = (($item['private']) ? 'false' : 'true');
903 require_once('include/datetime.php');
904 $created = datetime_convert('UTC','UTC',$item['created'],'Y-m-d h:i:s \U\T\C');
906 $tpl = get_markup_template('diaspora_post.tpl');
907 $msg = replace_macros($tpl, array(
909 '$guid' => $item['guid'],
910 '$handle' => xmlify($myaddr),
911 '$public' => $public,
912 '$created' => $created
915 logger('diaspora_send_status: ' . $owner['username'] . ' -> ' . $contact['name'] . ' base message: ' . $msg, LOGGER_DATA);
917 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
919 $return_code = diaspora_transmit($owner,$contact,$slap);
922 diaspora_send_images($item,$owner,$contact,$images);
929 function diaspora_send_images($item,$owner,$contact,$images) {
933 $mysite = substr($a->get_baseurl(),strpos($a->get_baseurl(),'://') + 3) . '/photo';
935 $tpl = get_markup_template('diaspora_photo.tpl');
936 foreach($images as $image) {
937 if(! stristr($image['path'],$mysite))
939 $resource = str_replace('.jpg','',$image['file']);
940 $resource = substr($resource,0,strpos($resource,'-'));
942 $r = q("select * from photo where `resource-id` = '%s' and `uid` = %d limit 1",
944 intval($owner['uid'])
948 $public = (($r[0]['allow_cid'] || $r[0]['allow_gid'] || $r[0]['deny_cid'] || $r[0]['deny_gid']) ? 'false' : 'true' );
949 $msg = replace_macros($tpl,array(
950 '$path' => xmlify($image['path']),
951 '$filename' => xmlify($image['file']),
952 '$msg_guid' => xmlify($image['guid']),
953 '$guid' => xmlify($r[0]['guid']),
954 '$handle' => xmlify($image['handle']),
955 '$public' => xmlify($public),
956 '$created_at' => xmlify(datetime_convert('UTC','UTC',$r[0]['created'],'Y-m-d h:i:s \U\T\C'))
960 logger('diaspora_send_photo: base message: ' . $msg, LOGGER_DATA);
961 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
963 diaspora_transmit($owner,$contact,$slap);
968 function diaspora_send_followup($item,$owner,$contact) {
971 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
972 $theiraddr = $contact['addr'];
974 $p = q("select guid from item where parent = %d limit 1",
978 $parent_guid = $p[0]['guid'];
982 if($item['verb'] === ACTIVITY_LIKE) {
983 $tpl = get_markup_template('diaspora_like.tpl');
985 $target_type = 'Post';
986 $positive = (($item['deleted']) ? 'false' : 'true');
989 $tpl = get_markup_template('diaspora_comment.tpl');
993 $text = bb2diaspora($item['body']);
998 $signed_text = $item['guid'] . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $myaddr;
1000 $signed_text = $item['guid'] . ';' . $parent_guid . ';' . $text . ';' . $myaddr;
1002 $authorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha'));
1004 $msg = replace_macros($tpl,array(
1005 '$guid' => xmlify($item['guid']),
1006 '$parent_guid' => xmlify($parent_guid),
1007 '$target_type' =>xmlify($target_type),
1008 '$authorsig' => xmlify($authorsig),
1009 '$body' => xmlify($text),
1010 '$positive' => xmlify($positive),
1011 '$handle' => xmlify($myaddr)
1014 logger('diaspora_followup: base message: ' . $msg, LOGGER_DATA);
1016 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
1018 return(diaspora_transmit($owner,$contact,$slap));
1022 function diaspora_send_relay($item,$owner,$contact) {
1026 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
1027 $theiraddr = $contact['addr'];
1030 $p = q("select guid from item where parent = %d limit 1",
1034 $parent_guid = $p[0]['guid'];
1038 if($item['verb'] === ACTIVITY_LIKE) {
1039 $tpl = get_markup_template('diaspora_like_relay.tpl');
1041 $target_type = 'Post';
1042 $positive = (($item['deleted']) ? 'false' : 'true');
1045 $tpl = get_markup_template('diaspora_comment_relay.tpl');
1049 $text = bb2diaspora($item['body']);
1051 // fetch the original signature if somebody sent the post to us to relay
1052 // if we are relaying for a reply originating here, there wasn't a 'send to relay'
1053 // action. It wasn't needed. In that case create the original signature and the
1054 // owner (parent author) signature
1056 $r = q("select * from sign where iid = %d limit 1",
1061 $signed_text = $orig_sign['signed_text'];
1062 $authorsig = $orig_sign['signature'];
1066 $signed_text = $item['guid'] . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $myaddr;
1068 $signed_text = $item['guid'] . ';' . $parent_guid . ';' . $text . ';' . $myaddr;
1070 $authorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha'));
1072 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
1073 intval($item['id']),
1074 dbesc($signed_text),
1075 dbesc(base64_encode($authorsig)),
1083 $parentauthorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha'));
1085 $msg = replace_macros($tpl,array(
1086 '$guid' => xmlify($item['guid']),
1087 '$parent_guid' => xmlify($parent_guid),
1088 '$target_type' =>xmlify($target_type),
1089 '$authorsig' => xmlify($orig_sign['signature']),
1090 '$parentsig' => xmlify($parentauthorsig),
1091 '$body' => xmlify($text),
1092 '$positive' => xmlify($positive),
1093 '$handle' => xmlify($myaddr)
1096 logger('diaspora_relay_comment: base message: ' . $msg, LOGGER_DATA);
1098 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
1100 return(diaspora_transmit($owner,$contact,$slap));
1106 function diaspora_send_retraction($item,$owner,$contact) {
1109 $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
1111 $tpl = get_markup_template('diaspora_retract.tpl');
1112 $msg = replace_macros($tpl, array(
1113 '$guid' => $item['guid'],
1115 '$handle' => $myaddr
1118 $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
1120 return(diaspora_transmit($owner,$contact,$slap));
1125 function diaspora_transmit($owner,$contact,$slap) {
1129 post_url($contact['notify'] . '/',$slap);
1130 $return_code = $a->get_curl_code();
1131 logger('diaspora_transmit: returns: ' . $return_code);
1133 if(! $return_code) {
1134 logger('diaspora_transmit: queue message');
1135 // queue message for redelivery
1136 q("INSERT INTO `queue` ( `cid`, `created`, `last`, `content`)
1137 VALUES ( %d, '%s', '%s', '%s') ",
1138 intval($contact['id']),
1139 dbesc(datetime_convert()),
1140 dbesc(datetime_convert()),
1145 return(($return_code) ? $return_code : (-1));