',''), array('',''), $msg['message']); $parsed_xml = parse_xml_string($msg['message'],false); $xmlbase = $parsed_xml->post; if($xmlbase->request) { $ret = diaspora_request($importer,$xmlbase->request); } elseif($xmlbase->status_message) { $ret = diaspora_post($importer,$xmlbase->status_message); } elseif($xmlbase->profile) { $ret = diaspora_profile($importer,$xmlbase->profile); } elseif($xmlbase->comment) { $ret = diaspora_comment($importer,$xmlbase->comment,$msg); } elseif($xmlbase->like) { $ret = diaspora_like($importer,$xmlbase->like,$msg); } elseif($xmlbase->asphoto) { $ret = diaspora_asphoto($importer,$xmlbase->asphoto); } elseif($xmlbase->reshare) { $ret = diaspora_reshare($importer,$xmlbase->reshare); } elseif($xmlbase->retraction) { $ret = diaspora_retraction($importer,$xmlbase->retraction,$msg); } elseif($xmlbase->photo) { $ret = diaspora_photo($importer,$xmlbase->photo,$msg); } else { logger('diaspora_dispatch: unknown message type: ' . print_r($xmlbase,true)); } return $ret; } function diaspora_get_contact_by_handle($uid,$handle) { $r = q("SELECT * FROM `contact` WHERE `network` = '%s' AND `uid` = %d AND `addr` = '%s' LIMIT 1", dbesc(NETWORK_DIASPORA), intval($uid), dbesc($handle) ); if($r && count($r)) return $r[0]; return false; } function find_diaspora_person_by_handle($handle) { $update = false; $r = q("select * from fcontact where network = '%s' and addr = '%s' limit 1", dbesc(NETWORK_DIASPORA), dbesc($handle) ); if(count($r)) { // update record occasionally so it doesn't get stale $d = strtotime($r[0]['updated'] . ' +00:00'); if($d > strtotime('now - 14 days')) return $r[0]; $update = true; } require_once('include/Scrape.php'); $r = probe_url($handle, PROBE_DIASPORA); if((count($r)) && ($r['network'] === NETWORK_DIASPORA)) { add_fcontact($r,$update); return ($r); } return false; } function get_diaspora_key($uri) { logger('Fetching diaspora key for: ' . $uri); $r = find_diaspora_person_by_handle($uri); if($r) return $r['pubkey']; return ''; } function diaspora_pubmsg_build($msg,$user,$contact,$prvkey,$pubkey) { $a = get_app(); logger('diaspora_pubmsg_build: ' . $msg, LOGGER_DATA); $handle = $user['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3); // $b64_data = base64_encode($msg); // $b64url_data = base64url_encode($b64_data); $b64url_data = base64url_encode($msg); $data = str_replace(array("\n","\r"," ","\t"),array('','','',''),$b64url_data); $type = 'application/xml'; $encoding = 'base64url'; $alg = 'RSA-SHA256'; $signable_data = $data . '.' . base64url_encode($type) . '.' . base64url_encode($encoding) . '.' . base64url_encode($alg) ; $signature = rsa_sign($signable_data,$prvkey); $sig = base64url_encode($signature); $magic_env = <<< EOT
$handle
base64url RSA-SHA256 $data $sig
EOT; logger('diaspora_pubmsg_build: magic_env: ' . $magic_env, LOGGER_DATA); return $magic_env; } function diaspora_msg_build($msg,$user,$contact,$prvkey,$pubkey,$public = false) { $a = get_app(); if($public) return diaspora_pubmsg_build($msg,$user,$contact,$prvkey,$pubkey); logger('diaspora_msg_build: ' . $msg, LOGGER_DATA); $inner_aes_key = random_string(32); $b_inner_aes_key = base64_encode($inner_aes_key); $inner_iv = random_string(16); $b_inner_iv = base64_encode($inner_iv); $outer_aes_key = random_string(32); $b_outer_aes_key = base64_encode($outer_aes_key); $outer_iv = random_string(16); $b_outer_iv = base64_encode($outer_iv); $handle = $user['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3); $padded_data = pkcs5_pad($msg,16); $inner_encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $padded_data, MCRYPT_MODE_CBC, $inner_iv); $b64_data = base64_encode($inner_encrypted); $b64url_data = base64url_encode($b64_data); $data = str_replace(array("\n","\r"," ","\t"),array('','','',''),$b64url_data); $type = 'application/xml'; $encoding = 'base64url'; $alg = 'RSA-SHA256'; $signable_data = $data . '.' . base64url_encode($type) . '.' . base64url_encode($encoding) . '.' . base64url_encode($alg) ; $signature = rsa_sign($signable_data,$prvkey); $sig = base64url_encode($signature); $decrypted_header = <<< EOT $b_inner_iv $b_inner_aes_key $handle EOT; $decrypted_header = pkcs5_pad($decrypted_header,16); $ciphertext = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $outer_aes_key, $decrypted_header, MCRYPT_MODE_CBC, $outer_iv); $outer_json = json_encode(array('iv' => $b_outer_iv,'key' => $b_outer_aes_key)); $encrypted_outer_key_bundle = ''; openssl_public_encrypt($outer_json,$encrypted_outer_key_bundle,$pubkey); $b64_encrypted_outer_key_bundle = base64_encode($encrypted_outer_key_bundle); logger('outer_bundle: ' . $b64_encrypted_outer_key_bundle . ' key: ' . $pubkey, LOGGER_DATA); $encrypted_header_json_object = json_encode(array('aes_key' => base64_encode($encrypted_outer_key_bundle), 'ciphertext' => base64_encode($ciphertext))); $cipher_json = base64_encode($encrypted_header_json_object); $encrypted_header = '' . $cipher_json . ''; $magic_env = <<< EOT $encrypted_header base64url RSA-SHA256 $data $sig EOT; logger('diaspora_msg_build: magic_env: ' . $magic_env, LOGGER_DATA); return $magic_env; } /** * * diaspora_decode($importer,$xml) * array $importer -> from user table * string $xml -> urldecoded Diaspora salmon * * Returns array * 'message' -> decoded Diaspora XML message * 'author' -> author diaspora handle * 'key' -> author public key (converted to pkcs#8) * * Author and key are used elsewhere to save a lookup for verifying replies and likes */ function diaspora_decode($importer,$xml) { $public = false; $basedom = parse_xml_string($xml); $children = $basedom->children('https://joindiaspora.com/protocol'); if($children->header) { $public = true; $author_link = str_replace('acct:','',$children->header->author_id); } else { $encrypted_header = json_decode(base64_decode($children->encrypted_header)); $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key); $ciphertext = base64_decode($encrypted_header->ciphertext); $outer_key_bundle = ''; openssl_private_decrypt($encrypted_aes_key_bundle,$outer_key_bundle,$importer['prvkey']); $j_outer_key_bundle = json_decode($outer_key_bundle); $outer_iv = base64_decode($j_outer_key_bundle->iv); $outer_key = base64_decode($j_outer_key_bundle->key); $decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $outer_key, $ciphertext, MCRYPT_MODE_CBC, $outer_iv); $decrypted = pkcs5_unpad($decrypted); /** * $decrypted now contains something like * * * 8e+G2+ET8l5BPuW0sVTnQw== * UvSMb4puPeB14STkcDWq+4QE302Edu15oaprAQSkLKU= ***** OBSOLETE * * Ryan Hughes * acct:galaxor@diaspora.pirateship.org * ***** CURRENT * galaxor@diaspora.priateship.org ***** END DIFFS * */ logger('decrypted: ' . $decrypted, LOGGER_DEBUG); $idom = parse_xml_string($decrypted,false); $inner_iv = base64_decode($idom->iv); $inner_aes_key = base64_decode($idom->aes_key); $author_link = str_replace('acct:','',$idom->author_id); } $dom = $basedom->children(NAMESPACE_SALMON_ME); // figure out where in the DOM tree our data is hiding if($dom->provenance->data) $base = $dom->provenance; elseif($dom->env->data) $base = $dom->env; elseif($dom->data) $base = $dom; if(! $base) { logger('mod-diaspora: unable to locate salmon data in xml '); http_status_exit(400); } // Stash the signature away for now. We have to find their key or it won't be good for anything. $signature = base64url_decode($base->sig); // unpack the data // strip whitespace so our data element will return to one big base64 blob $data = str_replace(array(" ","\t","\r","\n"),array("","","",""),$base->data); // stash away some other stuff for later $type = $base->data[0]->attributes()->type[0]; $keyhash = $base->sig[0]->attributes()->keyhash[0]; $encoding = $base->encoding; $alg = $base->alg; $signed_data = $data . '.' . base64url_encode($type) . '.' . base64url_encode($encoding) . '.' . base64url_encode($alg); // decode the data $data = base64url_decode($data); if($public) { $inner_decrypted = $data; } else { // Decode the encrypted blob $inner_encrypted = base64_decode($data); $inner_decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $inner_encrypted, MCRYPT_MODE_CBC, $inner_iv); $inner_decrypted = pkcs5_unpad($inner_decrypted); } if(! $author_link) { logger('mod-diaspora: Could not retrieve author URI.'); http_status_exit(400); } // Once we have the author URI, go to the web and try to find their public key // (first this will look it up locally if it is in the fcontact cache) // This will also convert diaspora public key from pkcs#1 to pkcs#8 logger('mod-diaspora: Fetching key for ' . $author_link ); $key = get_diaspora_key($author_link); if(! $key) { logger('mod-diaspora: Could not retrieve author key.'); http_status_exit(400); } $verify = rsa_verify($signed_data,$signature,$key); if(! $verify) { logger('mod-diaspora: Message did not verify. Discarding.'); http_status_exit(400); } logger('mod-diaspora: Message verified.'); return array('message' => $inner_decrypted, 'author' => $author_link, 'key' => $key); } function diaspora_request($importer,$xml) { $sender_handle = unxmlify($xml->sender_handle); $recipient_handle = unxmlify($xml->recipient_handle); if(! $sender_handle || ! $recipient_handle) return; $contact = diaspora_get_contact_by_handle($importer['uid'],$sender_handle); if($contact) { // perhaps we were already sharing with this person. Now they're sharing with us. // That makes us friends. if($contact['rel'] == CONTACT_IS_FOLLOWER) { q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1", intval(CONTACT_IS_FRIEND), intval($contact['id']), intval($importer['uid']) ); } // send notification? return; } $ret = find_diaspora_person_by_handle($sender_handle); if((! count($ret)) || ($ret['network'] != NETWORK_DIASPORA)) { logger('diaspora_request: Cannot resolve diaspora handle ' . $sender_handle . ' for ' . $recipient_handle); return; } $batch = (($ret['batch']) ? $ret['batch'] : implode('/', array_slice(explode('/',$ret['url']),0,3)) . '/receive/public'); $r = q("INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`batch`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`) VALUES ( %d, '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s','%s',%d,%d) ", intval($importer['uid']), dbesc($ret['network']), dbesc($ret['addr']), datetime_convert(), dbesc($ret['url']), dbesc($batch), dbesc($ret['name']), dbesc($ret['nick']), dbesc($ret['photo']), dbesc($ret['pubkey']), dbesc($ret['notify']), dbesc($ret['poll']), 1, 2 ); // find the contact record we just created $contact_record = diaspora_get_contact_by_handle($importer['uid'],$sender_handle); $hash = random_string() . (string) time(); // Generate a confirm_key if($contact_record) { $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime` ) VALUES ( %d, %d, %d, %d, '%s', '%s', '%s' )", intval($importer['uid']), intval($contact_record['id']), 0, 0, dbesc( t('Sharing notification from Diaspora network')), dbesc($hash), dbesc(datetime_convert()) ); } return; } function diaspora_post($importer,$xml) { $a = get_app(); $guid = notags(unxmlify($xml->guid)); $diaspora_handle = notags(unxmlify($xml->diaspora_handle)); $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle); if(! $contact) return; if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { logger('diaspora_post: Ignoring this author.'); return 202; } $message_id = $diaspora_handle . ':' . $guid; $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `guid` = '%s' LIMIT 1", intval($importer['uid']), dbesc($message_id), dbesc($guid) ); if(count($r)) { logger('diaspora_post: message exists: ' . $guid); return; } // allocate a guid on our system - we aren't fixing any collisions. // we're ignoring them $g = q("select * from guid where guid = '%s' limit 1", dbesc($guid) ); if(! count($g)) { q("insert into guid ( guid ) values ( '%s' )", dbesc($guid) ); } $created = unxmlify($xml->created_at); $private = ((unxmlify($xml->public) == 'false') ? 1 : 0); $body = diaspora2bb($xml->raw_message); $datarray = array(); $str_tags = ''; $tags = get_tags($body); if(count($tags)) { foreach($tags as $tag) { if(strpos($tag,'#') === 0) { if(strpos($tag,'[url=')) continue; $basetag = str_replace('_',' ',substr($tag,1)); $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body); if(strlen($str_tags)) $str_tags .= ','; $str_tags .= '#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]'; continue; } } } $datarray['uid'] = $importer['uid']; $datarray['contact-id'] = $contact['id']; $datarray['wall'] = 0; $datarray['guid'] = $guid; $datarray['uri'] = $datarray['parent-uri'] = $message_id; $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created); $datarray['private'] = $private; $datarray['parent'] = 0; $datarray['owner-name'] = $contact['name']; $datarray['owner-link'] = $contact['url']; $datarray['owner-avatar'] = $contact['thumb']; $datarray['author-name'] = $contact['name']; $datarray['author-link'] = $contact['url']; $datarray['author-avatar'] = $contact['thumb']; $datarray['body'] = $body; $datarray['tag'] = $str_tags; $datarray['app'] = 'Diaspora'; // if empty content it might be a photo that hasn't arrived yet. If a photo arrives, we'll make it visible. $datarray['visible'] = ((strlen($body)) ? 1 : 0); $message_id = item_store($datarray); if($message_id) { q("update item set plink = '%s' where id = %d limit 1", dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id), intval($message_id) ); } return; } function diaspora_reshare($importer,$xml) { logger('diaspora_reshare: init: ' . print_r($xml,true)); $a = get_app(); $guid = notags(unxmlify($xml->guid)); $diaspora_handle = notags(unxmlify($xml->diaspora_handle)); $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle); if(! $contact) return; if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { logger('diaspora_reshare: Ignoring this author: ' . $diaspora_handle . ' ' . print_r($xml,true)); return 202; } $message_id = $diaspora_handle . ':' . $guid; $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `guid` = '%s' LIMIT 1", intval($importer['uid']), dbesc($message_id), dbesc($guid) ); if(count($r)) { logger('diaspora_reshare: message exists: ' . $guid); return; } $orig_author = notags(unxmlify($xml->root_diaspora_id)); $orig_guid = notags(unxmlify($xml->root_guid)); $source_url = 'https://' . substr($orig_author,strpos($orig_author,'@')+1) . '/p/' . $orig_guid . '.xml'; $x = fetch_url($source_url); if(! $x) $x = fetch_url(str_replace('https://','http://',$source_url)); if(! $x) { logger('diaspora_reshare: unable to fetch source url ' . $source_url); return; } logger('diaspora_reshare: source: ' . $x); $x = str_replace(array('',''),array('',''),$x); $source_xml = parse_xml_string($x,false); if(strlen($source_xml->post->asphoto->objectId) && ($source_xml->post->asphoto->objectId != 0) && ($source_xml->post->asphoto->image_url)) $body = '[url=' . notags(unxmlify($source_xml->post->asphoto->image_url)) . '][img]' . notags(unxmlify($source_xml->post->asphoto->objectId)) . '[/img][/url]' . "\n"; elseif($source_xml->post->asphoto->image_url) $body = '[img]' . notags(unxmlify($source_xml->post->asphoto->image_url)) . '[/img]' . "\n"; elseif($source_xml->post->status_message) { $body = diaspora2bb($source_xml->post->status_message->raw_message); } else { logger('diaspora_reshare: no reshare content found: ' . print_r($source_xml,true)); return; } if(! $body) { logger('diaspora_reshare: empty body: source= ' . $x); return; } $person = find_diaspora_person_by_handle($orig_author); if(is_array($person) && x($person,'name') && x($person,'url')) $details = '[url=' . $person['url'] . ']' . $person['name'] . '[/url]'; else $details = $orig_author; $prefix = '♲ ' . $details . "\n"; // allocate a guid on our system - we aren't fixing any collisions. // we're ignoring them $g = q("select * from guid where guid = '%s' limit 1", dbesc($guid) ); if(! count($g)) { q("insert into guid ( guid ) values ( '%s' )", dbesc($guid) ); } $created = unxmlify($xml->created_at); $private = ((unxmlify($xml->public) == 'false') ? 1 : 0); $body = diaspora2bb($xml->raw_message); $datarray = array(); $str_tags = ''; $tags = get_tags($body); if(count($tags)) { foreach($tags as $tag) { if(strpos($tag,'#') === 0) { if(strpos($tag,'[url=')) continue; $basetag = str_replace('_',' ',substr($tag,1)); $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body); if(strlen($str_tags)) $str_tags .= ','; $str_tags .= '#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]'; continue; } } } $datarray['uid'] = $importer['uid']; $datarray['contact-id'] = $contact['id']; $datarray['wall'] = 0; $datarray['guid'] = $guid; $datarray['uri'] = $datarray['parent-uri'] = $message_id; $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created); $datarray['private'] = $private; $datarray['parent'] = 0; $datarray['owner-name'] = $contact['name']; $datarray['owner-link'] = $contact['url']; $datarray['owner-avatar'] = $contact['thumb']; $datarray['author-name'] = $contact['name']; $datarray['author-link'] = $contact['url']; $datarray['author-avatar'] = $contact['thumb']; $datarray['body'] = $prefix . $body; $datarray['tag'] = $str_tags; $datarray['app'] = 'Diaspora'; $message_id = item_store($datarray); if($message_id) { q("update item set plink = '%s' where id = %d limit 1", dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id), intval($message_id) ); } return; } function diaspora_asphoto($importer,$xml) { logger('diaspora_asphoto called'); $a = get_app(); $guid = notags(unxmlify($xml->guid)); $diaspora_handle = notags(unxmlify($xml->diaspora_handle)); $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle); if(! $contact) return; if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { logger('diaspora_asphoto: Ignoring this author.'); return 202; } $message_id = $diaspora_handle . ':' . $guid; $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `guid` = '%s' LIMIT 1", intval($importer['uid']), dbesc($message_id), dbesc($guid) ); if(count($r)) { logger('diaspora_asphoto: message exists: ' . $guid); return; } // allocate a guid on our system - we aren't fixing any collisions. // we're ignoring them $g = q("select * from guid where guid = '%s' limit 1", dbesc($guid) ); if(! count($g)) { q("insert into guid ( guid ) values ( '%s' )", dbesc($guid) ); } $created = unxmlify($xml->created_at); $private = ((unxmlify($xml->public) == 'false') ? 1 : 0); if(strlen($xml->objectId) && ($xml->objectId != 0) && ($xml->image_url)) $body = '[url=' . notags(unxmlify($xml->image_url)) . '][img]' . notags(unxmlify($xml->objectId)) . '[/img][/url]' . "\n"; elseif($xml->image_url) $body = '[img]' . notags(unxmlify($xml->image_url)) . '[/img]' . "\n"; else { logger('diaspora_asphoto: no photo url found.'); return; } $datarray = array(); $datarray['uid'] = $importer['uid']; $datarray['contact-id'] = $contact['id']; $datarray['wall'] = 0; $datarray['guid'] = $guid; $datarray['uri'] = $datarray['parent-uri'] = $message_id; $datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created); $datarray['private'] = $private; $datarray['parent'] = 0; $datarray['owner-name'] = $contact['name']; $datarray['owner-link'] = $contact['url']; $datarray['owner-avatar'] = $contact['thumb']; $datarray['author-name'] = $contact['name']; $datarray['author-link'] = $contact['url']; $datarray['author-avatar'] = $contact['thumb']; $datarray['body'] = $body; $datarray['app'] = 'Diaspora/Cubbi.es'; $message_id = item_store($datarray); if($message_id) { q("update item set plink = '%s' where id = %d limit 1", dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id), intval($message_id) ); } return; } function diaspora_comment($importer,$xml,$msg) { $a = get_app(); $guid = notags(unxmlify($xml->guid)); $parent_guid = notags(unxmlify($xml->parent_guid)); $diaspora_handle = notags(unxmlify($xml->diaspora_handle)); $target_type = notags(unxmlify($xml->target_type)); $text = unxmlify($xml->text); $author_signature = notags(unxmlify($xml->author_signature)); $parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : ''); $text = $xml->text; $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']); if(! $contact) { logger('diaspora_comment: cannot find contact: ' . $msg['author']); return; } if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { logger('diaspora_comment: Ignoring this author.'); return 202; } $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1", intval($importer['uid']), dbesc($guid) ); if(count($r)) { logger('diaspora_comment: our comment just got relayed back to us (or there was a guid collision) : ' . $guid); return; } $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1", intval($importer['uid']), dbesc($parent_guid) ); if(! count($r)) { logger('diaspora_comment: parent item not found: parent: ' . $parent_guid . ' item: ' . $guid); return; } $parent_item = $r[0]; $author_signed_data = $guid . ';' . $parent_guid . ';' . $text . ';' . $diaspora_handle; $author_signature = base64_decode($author_signature); if(strcasecmp($diaspora_handle,$msg['author']) == 0) { $person = $contact; $key = $msg['key']; } else { $person = find_diaspora_person_by_handle($diaspora_handle); if(is_array($person) && x($person,'pubkey')) $key = $person['pubkey']; else { logger('diaspora_comment: unable to find author details'); return; } } if(! rsa_verify($author_signed_data,$author_signature,$key,'sha256')) { logger('diaspora_comment: verification failed.'); return; } if($parent_author_signature) { $owner_signed_data = $guid . ';' . $parent_guid . ';' . $text . ';' . $diaspora_handle; $parent_author_signature = base64_decode($parent_author_signature); $key = $msg['key']; if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha256')) { logger('diaspora_comment: owner verification failed.'); return; } } // Phew! Everything checks out. Now create an item. $body = diaspora2bb($text); $message_id = $diaspora_handle . ':' . $guid; $datarray = array(); $str_tags = ''; $tags = get_tags($body); if(count($tags)) { foreach($tags as $tag) { if(strpos($tag,'#') === 0) { if(strpos($tag,'[url=')) continue; $basetag = str_replace('_',' ',substr($tag,1)); $body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body); if(strlen($str_tags)) $str_tags .= ','; $str_tags .= '#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]'; continue; } } } $datarray['uid'] = $importer['uid']; $datarray['contact-id'] = $contact['id']; $datarray['wall'] = $parent_item['wall']; $datarray['gravity'] = GRAVITY_COMMENT; $datarray['guid'] = $guid; $datarray['uri'] = $message_id; $datarray['parent-uri'] = $parent_item['uri']; // No timestamps for comments? OK, we'll the use current time. $datarray['created'] = $datarray['edited'] = datetime_convert(); $datarray['private'] = $parent_item['private']; $datarray['owner-name'] = $parent_item['owner-name']; $datarray['owner-link'] = $parent_item['owner-link']; $datarray['owner-avatar'] = $parent_item['owner-avatar']; $datarray['author-name'] = $person['name']; $datarray['author-link'] = $person['url']; $datarray['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']); $datarray['body'] = $body; $datarray['tag'] = $str_tags; $datarray['app'] = 'Diaspora'; $message_id = item_store($datarray); if($message_id) { q("update item set plink = '%s' where id = %d limit 1", dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id), intval($message_id) ); } if(! $parent_author_signature) { q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ", intval($message_id), dbesc($author_signed_data), dbesc(base64_encode($author_signature)), dbesc($diaspora_handle) ); // if the message isn't already being relayed, notify others // the existence of parent_author_signature means the parent_author or owner // is already relaying. proc_run('php','include/notifier.php','comment',$message_id); } return; } function diaspora_photo($importer,$xml,$msg) { $a = get_app(); $remote_photo_path = notags(unxmlify($xml->remote_photo_path)); $remote_photo_name = notags(unxmlify($xml->remote_photo_name)); $status_message_guid = notags(unxmlify($xml->status_message_guid)); $guid = notags(unxmlify($xml->guid)); $diaspora_handle = notags(unxmlify($xml->diaspora_handle)); $public = notags(unxmlify($xml->public)); $created_at = notags(unxmlify($xml_created_at)); $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']); if(! $contact) return; if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { logger('diaspora_photo: Ignoring this author.'); return 202; } $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1", intval($importer['uid']), dbesc($status_message_guid) ); if(! count($r)) { logger('diaspora_photo: parent item not found: parent: ' . $parent_guid . ' item: ' . $guid); return; } $parent_item = $r[0]; $link_text = '[img]' . $remote_photo_path . $remote_photo_name . '[/img]' . "\n"; if(strpos($parent_item['body'],$link_text) === false) { $r = q("update item set `body` = '%s', `visible` = 1 where `id` = %d and `uid` = %d limit 1", dbesc($link_text . $parent_item['body']), intval($parent_item['id']), intval($parent_item['uid']) ); } return; } function diaspora_like($importer,$xml,$msg) { $a = get_app(); $guid = notags(unxmlify($xml->guid)); $parent_guid = notags(unxmlify($xml->parent_guid)); $diaspora_handle = notags(unxmlify($xml->diaspora_handle)); $target_type = notags(unxmlify($xml->target_type)); $positive = notags(unxmlify($xml->positive)); $author_signature = notags(unxmlify($xml->author_signature)); $parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : ''); // likes on comments not supported here and likes on photos not supported by Diaspora if($target_type !== 'Post') return; $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']); if(! $contact) { logger('diaspora_like: cannot find contact: ' . $msg['author']); return; } if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) { logger('diaspora_like: Ignoring this author.'); return 202; } $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1", intval($importer['uid']), dbesc($parent_guid) ); if(! count($r)) { logger('diaspora_like: parent item not found: ' . $guid); return; } $parent_item = $r[0]; $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1", intval($importer['uid']), dbesc($guid) ); if(count($r)) { if($positive === 'true') { logger('diaspora_like: duplicate like: ' . $guid); return; } if($positive === 'false') { q("UPDATE `item` SET `deleted` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1", intval($r[0]['id']), intval($importer['uid']) ); // FIXME // send notification via proc_run() return; } } if($positive === 'false') { logger('diaspora_like: unlike received with no corresponding like'); return; } $author_signed_data = $guid . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $diaspora_handle; $author_signature = base64_decode($author_signature); if(strcasecmp($diaspora_handle,$msg['author']) == 0) { $person = $contact; $key = $msg['key']; } else { $person = find_diaspora_person_by_handle($diaspora_handle); if(is_array($person) && x($person,'pubkey')) $key = $person['pubkey']; else { logger('diaspora_like: unable to find author details'); return; } } if(! rsa_verify($author_signed_data,$author_signature,$key,'sha256')) { logger('diaspora_like: verification failed.'); return; } if($parent_author_signature) { $owner_signed_data = $guid . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $diaspora_handle; $parent_author_signature = base64_decode($parent_author_signature); $key = $msg['key']; if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha256')) { logger('diaspora_like: owner verification failed.'); return; } } // Phew! Everything checks out. Now create an item. $uri = $diaspora_handle . ':' . $guid; $activity = ACTIVITY_LIKE; $post_type = (($parent_item['resource-id']) ? t('photo') : t('status')); $objtype = (($parent_item['resource-id']) ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE ); $link = xmlify('' . "\n") ; $body = $parent_item['body']; $obj = <<< EOT $objtype 1 {$parent_item['uri']} $link $body EOT; $bodyverb = t('%1$s likes %2$s\'s %3$s'); $arr = array(); $arr['uri'] = $uri; $arr['uid'] = $importer['uid']; $arr['guid'] = $guid; $arr['contact-id'] = $contact['id']; $arr['type'] = 'activity'; $arr['wall'] = $parent_item['wall']; $arr['gravity'] = GRAVITY_LIKE; $arr['parent'] = $parent_item['id']; $arr['parent-uri'] = $parent_item['uri']; $arr['owner-name'] = $contact['name']; $arr['owner-link'] = $contact['url']; $arr['owner-avatar'] = $contact['thumb']; $arr['author-name'] = $person['name']; $arr['author-link'] = $person['url']; $arr['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']); $ulink = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]'; $alink = '[url=' . $parent_item['author-link'] . ']' . $parent_item['author-name'] . '[/url]'; $plink = '[url=' . $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $parent_item['id'] . ']' . $post_type . '[/url]'; $arr['body'] = sprintf( $bodyverb, $ulink, $alink, $plink ); $arr['app'] = 'Diaspora'; $arr['private'] = $parent_item['private']; $arr['verb'] = $activity; $arr['object-type'] = $objtype; $arr['object'] = $obj; $arr['visible'] = 1; $arr['unseen'] = 1; $arr['last-child'] = 0; $message_id = item_store($arr); if($message_id) { q("update item set plink = '%s' where id = %d limit 1", dbesc($a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $message_id), intval($message_id) ); } if(! $parent_author_signature) { q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ", intval($message_id), dbesc($author_signed_data), dbesc(base64_encode($author_signature)), dbesc($diaspora_handle) ); } // if the message isn't already being relayed, notify others // the existence of parent_author_signature means the parent_author or owner // is already relaying. if(! $parent_author_signature) proc_run('php','include/notifier.php','comment',$message_id); return; } function diaspora_retraction($importer,$xml) { $guid = notags(unxmlify($xml->guid)); $diaspora_handle = notags(unxmlify($xml->diaspora_handle)); $type = notags(unxmlify($xml->type)); $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle); if(! $contact) return; if($type === 'Person') { contact_remove($contact['id']); } elseif($type === 'Post') { $r = q("select * from item where guid = '%s' and uid = %d limit 1", dbesc('guid'), intval($importer['uid']) ); if(count($r)) { if(link_compare($r[0]['author-link'],$contact['url'])) { q("update item set `deleted` = 1, `changed` = '%s' where `id` = %d limit 1", dbesc(datetime_convert()), intval($r[0]['id']) ); } } } return 202; // NOTREACHED } function diaspora_profile($importer,$xml) { $a = get_app(); $diaspora_handle = notags(unxmlify($xml->diaspora_handle)); $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle); if(! $contact) return; if($contact['blocked']) { logger('diaspora_post: Ignoring this author.'); return 202; } $name = unxmlify($xml->first_name) . ((strlen($xml->last_name)) ? ' ' . unxmlify($xml->last_name) : ''); $image_url = unxmlify($xml->image_url); $birthday = unxmlify($xml->birthday); $r = q("SELECT DISTINCT ( `resource-id` ) FROM `photo` WHERE `uid` = %d AND `contact-id` = %d AND `album` = 'Contact Photos' ", intval($importer['uid']), intval($contact['id']) ); $oldphotos = ((count($r)) ? $r : null); require_once('include/Photo.php'); $images = import_profile_photo($image_url,$importer['uid'],$contact['id']); // Generic birthday. We don't know the timezone. The year is irrelevant. $birthday = str_replace('1000','1901',$birthday); $birthday = datetime_convert('UTC','UTC',$birthday,'Y-m-d'); $r = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s', `avatar-date` = '%s' , `bd` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1", dbesc($name), dbesc(datetime_convert()), dbesc($images[0]), dbesc($images[1]), dbesc($images[2]), dbesc(datetime_convert()), dbesc($birthday), intval($contact['id']), intval($importer['uid']) ); if($r) { if($oldphotos) { foreach($oldphotos as $ph) { q("DELETE FROM `photo` WHERE `uid` = %d AND `contact-id` = %d AND `album` = 'Contact Photos' AND `resource-id` = '%s' ", intval($importer['uid']), intval($contact['id']), dbesc($ph['resource-id']) ); } } } return; } function diaspora_share($me,$contact) { $a = get_app(); $myaddr = $me['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3); $theiraddr = $contact['addr']; $tpl = get_markup_template('diaspora_share.tpl'); $msg = replace_macros($tpl, array( '$sender' => $myaddr, '$recipient' => $theiraddr )); $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey']))); return(diaspora_transmit($owner,$contact,$slap, false)); } function diaspora_unshare($me,$contact) { $a = get_app(); $myaddr = $me['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3); $tpl = get_markup_template('diaspora_retract.tpl'); $msg = replace_macros($tpl, array( '$guid' => $me['guid'], '$type' => 'Person', '$handle' => $myaddr )); $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey']))); return(diaspora_transmit($owner,$contact,$slap, false)); } function diaspora_send_status($item,$owner,$contact,$public_batch = false) { $a = get_app(); $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3); $theiraddr = $contact['addr']; $images = array(); $body = $item['body']; $cnt = preg_match_all('|\[img\](.*?)\[\/img\]|',$body,$matches,PREG_SET_ORDER); if($cnt) { foreach($matches as $mtch) { $detail = array(); $detail['str'] = $mtch[0]; $detail['path'] = dirname($mtch[1]) . '/'; $detail['file'] = basename($mtch[1]); $detail['guid'] = $item['guid']; $detail['handle'] = $myaddr; $images[] = $detail; $body = str_replace($detail['str'],$mtch[1],$body); } } $body = xmlify(html_entity_decode(bb2diaspora($body))); $public = (($item['private']) ? 'false' : 'true'); require_once('include/datetime.php'); $created = datetime_convert('UTC','UTC',$item['created'],'Y-m-d H:i:s \U\T\C'); $tpl = get_markup_template('diaspora_post.tpl'); $msg = replace_macros($tpl, array( '$body' => $body, '$guid' => $item['guid'], '$handle' => xmlify($myaddr), '$public' => $public, '$created' => $created )); logger('diaspora_send_status: ' . $owner['username'] . ' -> ' . $contact['name'] . ' base message: ' . $msg, LOGGER_DATA); $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch))); $return_code = diaspora_transmit($owner,$contact,$slap,$public_batch); if(count($images)) { diaspora_send_images($item,$owner,$contact,$images,$public_batch); } return $return_code; } function diaspora_send_images($item,$owner,$contact,$images,$public_batch = false) { $a = get_app(); if(! count($images)) return; $mysite = substr($a->get_baseurl(),strpos($a->get_baseurl(),'://') + 3) . '/photo'; $tpl = get_markup_template('diaspora_photo.tpl'); foreach($images as $image) { if(! stristr($image['path'],$mysite)) continue; $resource = str_replace('.jpg','',$image['file']); $resource = substr($resource,0,strpos($resource,'-')); $r = q("select * from photo where `resource-id` = '%s' and `uid` = %d limit 1", dbesc($resource), intval($owner['uid']) ); if(! count($r)) continue; $public = (($r[0]['allow_cid'] || $r[0]['allow_gid'] || $r[0]['deny_cid'] || $r[0]['deny_gid']) ? 'false' : 'true' ); $msg = replace_macros($tpl,array( '$path' => xmlify($image['path']), '$filename' => xmlify($image['file']), '$msg_guid' => xmlify($image['guid']), '$guid' => xmlify($r[0]['guid']), '$handle' => xmlify($image['handle']), '$public' => xmlify($public), '$created_at' => xmlify(datetime_convert('UTC','UTC',$r[0]['created'],'Y-m-d H:i:s \U\T\C')) )); logger('diaspora_send_photo: base message: ' . $msg, LOGGER_DATA); $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch))); diaspora_transmit($owner,$contact,$slap,$public_batch); } } function diaspora_send_followup($item,$owner,$contact,$public_batch = false) { $a = get_app(); $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3); $theiraddr = $contact['addr']; $p = q("select guid from item where parent = %d limit 1", $item['parent'] ); if(count($p)) $parent_guid = $p[0]['guid']; else return; if($item['verb'] === ACTIVITY_LIKE) { $tpl = get_markup_template('diaspora_like.tpl'); $like = true; $target_type = 'Post'; $positive = (($item['deleted']) ? 'false' : 'true'); } else { $tpl = get_markup_template('diaspora_comment.tpl'); $like = false; } $text = html_entity_decode(bb2diaspora($item['body'])); // sign it if($like) $signed_text = $item['guid'] . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $myaddr; else $signed_text = $item['guid'] . ';' . $parent_guid . ';' . $text . ';' . $myaddr; $authorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256')); $msg = replace_macros($tpl,array( '$guid' => xmlify($item['guid']), '$parent_guid' => xmlify($parent_guid), '$target_type' =>xmlify($target_type), '$authorsig' => xmlify($authorsig), '$body' => xmlify($text), '$positive' => xmlify($positive), '$handle' => xmlify($myaddr) )); logger('diaspora_followup: base message: ' . $msg, LOGGER_DATA); $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch))); return(diaspora_transmit($owner,$contact,$slap,$public_batch)); } function diaspora_send_relay($item,$owner,$contact,$public_batch = false) { $a = get_app(); $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3); $theiraddr = $contact['addr']; $p = q("select guid from item where parent = %d limit 1", $item['parent'] ); if(count($p)) $parent_guid = $p[0]['guid']; else return; if($item['verb'] === ACTIVITY_LIKE) { $tpl = get_markup_template('diaspora_like_relay.tpl'); $like = true; $target_type = 'Post'; $positive = (($item['deleted']) ? 'false' : 'true'); } else { $tpl = get_markup_template('diaspora_comment_relay.tpl'); $like = false; } $body = $item['body']; $text = html_entity_decode(bb2diaspora($body)); // fetch the original signature if somebody sent the post to us to relay // If we are relaying for a reply originating on our own account, there wasn't a 'send to relay' // action. It wasn't needed. In that case create the original signature and the // owner (parent author) signature // comments from other networks will be relayed under our name, with a brief // preamble to describe what's happening and noting the real author $r = q("select * from sign where iid = %d limit 1", intval($item['id']) ); if(count($r)) { $orig_sign = $r[0]; $signed_text = $orig_sign['signed_text']; $authorsig = $orig_sign['signature']; $handle = $orig_sign['signer']; } else { $itemcontact = q("select * from contact where `id` = %d limit 1", intval($item['contact-id']) ); if(count($itemcontact)) { if(! $itemcontact[0]['self']) { $prefix = sprintf( t('[Relayed] Comment authored by %s from network %s'), '['. $item['author-name'] . ']' . '(' . $item['author-link'] . ')', network_to_name($itemcontact['network'])) . "\n"; $body = $prefix . $body; } } else { if($like) $signed_text = $item['guid'] . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $myaddr; else $signed_text = $item['guid'] . ';' . $parent_guid . ';' . $text . ';' . $myaddr; $authorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256')); q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ", intval($item['id']), dbesc($signed_text), dbesc(base64_encode($authorsig)), dbesc($myaddr) ); $handle = $myaddr; } } // sign it $parentauthorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256')); $msg = replace_macros($tpl,array( '$guid' => xmlify($item['guid']), '$parent_guid' => xmlify($parent_guid), '$target_type' =>xmlify($target_type), '$authorsig' => xmlify($orig_sign['signature']), '$parentsig' => xmlify($parentauthorsig), '$body' => xmlify($text), '$positive' => xmlify($positive), '$handle' => xmlify($handle) )); logger('diaspora_relay_comment: base message: ' . $msg, LOGGER_DATA); $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch))); return(diaspora_transmit($owner,$contact,$slap,$public_batch)); } function diaspora_send_retraction($item,$owner,$contact,$public_batch = false) { $a = get_app(); $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3); $tpl = get_markup_template('diaspora_retract.tpl'); $msg = replace_macros($tpl, array( '$guid' => $item['guid'], '$type' => 'Post', '$handle' => $myaddr )); $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch))); return(diaspora_transmit($owner,$contact,$slap,$public_batch)); } function diaspora_transmit($owner,$contact,$slap,$public_batch) { $a = get_app(); $logid = random_string(4); logger('diaspora_transmit: ' . $logid . ' ' . (($public_batch) ? $contact['batch'] : $contact['notify'])); post_url((($public_batch) ? $contact['batch'] : $contact['notify']) . '/',$slap); $return_code = $a->get_curl_code(); logger('diaspora_transmit: ' . $logid . ' returns: ' . $return_code); if((! $return_code) || (($curl_stat == 503) && (stristr($a->get_curl_headers(),'retry-after')))) { logger('diaspora_transmit: queue message'); // queue message for redelivery q("INSERT INTO `queue` ( `cid`, `created`, `last`, `content`,`batch`) VALUES ( %d, '%s', '%s', '%s', %d) ", intval($contact['id']), dbesc(datetime_convert()), dbesc(datetime_convert()), dbesc($slap), intval($public_batch) ); } return(($return_code) ? $return_code : (-1)); }