1177 lines
33 KiB
PHP
1177 lines
33 KiB
PHP
<?php
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require_once('include/crypto.php');
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require_once('include/items.php');
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require_once('include/bb2diaspora.php');
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require_once('include/contact_selectors.php');
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function diaspora_dispatch($importer,$msg) {
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$parsed_xml = parse_xml_string($msg['message'],false);
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$xmlbase = $parsed_xml->post;
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if($xmlbase->request) {
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diaspora_request($importer,$xmlbase->request);
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}
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elseif($xmlbase->status_message) {
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diaspora_post($importer,$xmlbase->status_message);
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}
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elseif($xmlbase->comment) {
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diaspora_comment($importer,$xmlbase->comment,$msg);
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}
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elseif($xmlbase->like) {
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diaspora_like($importer,$xmlbase->like,$msg);
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}
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elseif($xmlbase->retraction) {
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diaspora_retraction($importer,$xmlbase->retraction,$msg);
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}
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elseif($xmlbase->photo) {
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diaspora_photo($importer,$xmlbase->photo,$msg);
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}
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else {
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logger('diaspora_dispatch: unknown message type: ' . print_r($xmlbase,true));
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}
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return;
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}
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function diaspora_get_contact_by_handle($uid,$handle) {
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$r = q("SELECT * FROM `contact` WHERE `network` = '%s' AND `uid` = %d AND `addr` = '%s' LIMIT 1",
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dbesc(NETWORK_DIASPORA),
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intval($uid),
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dbesc($handle)
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);
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if($r && count($r))
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return $r[0];
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return false;
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}
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function find_diaspora_person_by_handle($handle) {
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$r = q("select * from fcontact where network = '%s' and addr = '%s' limit 1",
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dbesc(NETWORK_DIASPORA),
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dbesc($handle)
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);
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if(count($r)) {
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// update record occasionally so it doesn't get stale
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$d = strtotime($r[0]['updated'] . ' +00:00');
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if($d < strtotime('now - 14 days')) {
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q("delete from fcontact where id = %d limit 1",
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intval($r[0]['id'])
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);
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}
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else
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return $r[0];
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}
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require_once('include/Scrape.php');
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$r = probe_url($handle, PROBE_DIASPORA);
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if((count($r)) && ($r['network'] === NETWORK_DIASPORA)) {
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add_fcontact($r);
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return ($r);
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}
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return false;
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}
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function get_diaspora_key($uri) {
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logger('Fetching diaspora key for: ' . $uri);
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$r = find_diaspora_person_by_handle($uri);
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if($r)
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return $r['pubkey'];
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return '';
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}
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function diaspora_msg_build($msg,$user,$contact,$prvkey,$pubkey) {
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$a = get_app();
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logger('diaspora_msg_build: ' . $msg, LOGGER_DATA);
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$inner_aes_key = random_string(32);
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$b_inner_aes_key = base64_encode($inner_aes_key);
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$inner_iv = random_string(16);
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$b_inner_iv = base64_encode($inner_iv);
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$outer_aes_key = random_string(32);
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$b_outer_aes_key = base64_encode($outer_aes_key);
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$outer_iv = random_string(16);
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$b_outer_iv = base64_encode($outer_iv);
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$handle = 'acct:' . $user['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
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$padded_data = pkcs5_pad($msg,16);
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$inner_encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $padded_data, MCRYPT_MODE_CBC, $inner_iv);
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$b64_data = base64_encode($inner_encrypted);
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$b64url_data = base64url_encode($b64_data);
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$b64url_stripped = str_replace(array("\n","\r"," ","\t"),array('','','',''),$b64url_data);
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$lines = str_split($b64url_stripped,60);
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$data = implode("\n",$lines);
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$data = $data . (($data[-1] != "\n") ? "\n" : '') ;
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$type = 'application/atom+xml';
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$encoding = 'base64url';
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$alg = 'RSA-SHA256';
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$signable_data = $data . '.' . base64url_encode($type) . "\n" . '.'
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. base64url_encode($encoding) . "\n" . '.' . base64url_encode($alg) . "\n";
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$signature = rsa_sign($signable_data,$prvkey);
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$sig = base64url_encode($signature);
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$decrypted_header = <<< EOT
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<decrypted_header>
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<iv>$b_inner_iv</iv>
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<aes_key>$b_inner_aes_key</aes_key>
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<author>
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<name>{$user['username']}</name>
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<uri>$handle</uri>
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</author>
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</decrypted_header>
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EOT;
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$decrypted_header = pkcs5_pad($decrypted_header,16);
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$ciphertext = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $outer_aes_key, $decrypted_header, MCRYPT_MODE_CBC, $outer_iv);
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$outer_json = json_encode(array('iv' => $b_outer_iv,'key' => $b_outer_aes_key));
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$encrypted_outer_key_bundle = '';
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openssl_public_encrypt($outer_json,$encrypted_outer_key_bundle,$pubkey);
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logger('outer_bundle_encrypt: ' . openssl_error_string());
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$b64_encrypted_outer_key_bundle = base64_encode($encrypted_outer_key_bundle);
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logger('outer_bundle: ' . $b64_encrypted_outer_key_bundle . ' key: ' . $pubkey);
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$encrypted_header_json_object = json_encode(array('aes_key' => base64_encode($encrypted_outer_key_bundle),
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'ciphertext' => base64_encode($ciphertext)));
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$cipher_json = base64_encode($encrypted_header_json_object);
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$encrypted_header = '<encrypted_header>' . $cipher_json . '</encrypted_header>';
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$magic_env = <<< EOT
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<?xml version='1.0' encoding='UTF-8'?>
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<entry xmlns='http://www.w3.org/2005/Atom'>
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$encrypted_header
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<me:env xmlns:me="http://salmon-protocol.org/ns/magic-env">
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<me:encoding>base64url</me:encoding>
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<me:alg>RSA-SHA256</me:alg>
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<me:data type="application/atom+xml">$data</me:data>
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<me:sig>$sig</me:sig>
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</me:env>
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</entry>
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EOT;
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logger('diaspora_msg_build: magic_env: ' . $magic_env, LOGGER_DATA);
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return $magic_env;
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}
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/**
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*
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* diaspora_decode($importer,$xml)
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* array $importer -> from user table
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* string $xml -> urldecoded Diaspora salmon
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*
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* Returns array
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* 'message' -> decoded Diaspora XML message
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* 'author' -> author diaspora handle
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* 'key' -> author public key (converted to pkcs#8)
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*
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* Author and key are used elsewhere to save a lookup for verifying replies and likes
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*/
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function diaspora_decode($importer,$xml) {
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$basedom = parse_xml_string($xml);
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$atom = $basedom->children(NAMESPACE_ATOM1);
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// Diaspora devs: This is kind of sucky - 'encrypted_header' does not belong in the atom namespace
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$encrypted_header = json_decode(base64_decode($atom->encrypted_header));
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$encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
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$ciphertext = base64_decode($encrypted_header->ciphertext);
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$outer_key_bundle = '';
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openssl_private_decrypt($encrypted_aes_key_bundle,$outer_key_bundle,$importer['prvkey']);
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$j_outer_key_bundle = json_decode($outer_key_bundle);
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$outer_iv = base64_decode($j_outer_key_bundle->iv);
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$outer_key = base64_decode($j_outer_key_bundle->key);
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$decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $outer_key, $ciphertext, MCRYPT_MODE_CBC, $outer_iv);
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$decrypted = pkcs5_unpad($decrypted);
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/**
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* $decrypted now contains something like
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*
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* <decrypted_header>
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* <iv>8e+G2+ET8l5BPuW0sVTnQw==</iv>
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* <aes_key>UvSMb4puPeB14STkcDWq+4QE302Edu15oaprAQSkLKU=</aes_key>
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* <author>
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* <name>Ryan Hughes</name>
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* <uri>acct:galaxor@diaspora.pirateship.org</uri>
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* </author>
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* </decrypted_header>
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*/
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logger('decrypted: ' . $decrypted);
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$idom = parse_xml_string($decrypted,false);
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$inner_iv = base64_decode($idom->iv);
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$inner_aes_key = base64_decode($idom->aes_key);
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$author_link = str_replace('acct:','',$idom->author->uri);
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$dom = $basedom->children(NAMESPACE_SALMON_ME);
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// figure out where in the DOM tree our data is hiding
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if($dom->provenance->data)
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$base = $dom->provenance;
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elseif($dom->env->data)
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$base = $dom->env;
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elseif($dom->data)
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$base = $dom;
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if(! $base) {
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logger('mod-diaspora: unable to locate salmon data in xml ');
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http_status_exit(400);
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}
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// Stash the signature away for now. We have to find their key or it won't be good for anything.
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$signature = base64url_decode($base->sig);
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// unpack the data
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// strip whitespace so our data element will return to one big base64 blob
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$data = str_replace(array(" ","\t","\r","\n"),array("","","",""),$base->data);
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// Add back the 60 char linefeeds
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// This completely violates the entire principle of salmon magic signatures,
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// which was to have a message signing format that was completely ambivalent to linefeeds
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// and transport whitespace mangling, and base64 wrapping rules. Guess what? PHP and Ruby
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// use different linelengths for base64 output.
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$lines = str_split($data,60);
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$data = implode("\n",$lines);
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// stash away some other stuff for later
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$type = $base->data[0]->attributes()->type[0];
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$keyhash = $base->sig[0]->attributes()->keyhash[0];
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$encoding = $base->encoding;
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$alg = $base->alg;
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// I can't even begin to tell you how sucky this is. Please read the spec.
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$signed_data = $data . (($data[-1] != "\n") ? "\n" : '') . '.' . base64url_encode($type) . "\n" . '.' . base64url_encode($encoding) . "\n" . '.' . base64url_encode($alg) . "\n";
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// decode the data
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$data = base64url_decode($data);
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// Now pull out the inner encrypted blob
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$inner_encrypted = base64_decode($data);
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$inner_decrypted =
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$inner_decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $inner_encrypted, MCRYPT_MODE_CBC, $inner_iv);
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$inner_decrypted = pkcs5_unpad($inner_decrypted);
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if(! $author_link) {
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logger('mod-diaspora: Could not retrieve author URI.');
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http_status_exit(400);
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}
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// Once we have the author URI, go to the web and try to find their public key
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// (first this will look it up locally if it is in the fcontact cache)
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// This will also convert diaspora public key from pkcs#1 to pkcs#8
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logger('mod-diaspora: Fetching key for ' . $author_link );
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$key = get_diaspora_key($author_link);
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if(! $key) {
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logger('mod-diaspora: Could not retrieve author key.');
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http_status_exit(400);
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}
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$verify = rsa_verify($signed_data,$signature,$key);
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if(! $verify) {
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logger('mod-diaspora: Message did not verify. Discarding.');
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http_status_exit(400);
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}
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logger('mod-diaspora: Message verified.');
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return array('message' => $inner_decrypted, 'author' => $author_link, 'key' => $key);
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}
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function diaspora_request($importer,$xml) {
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$sender_handle = unxmlify($xml->sender_handle);
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$recipient_handle = unxmlify($xml->recipient_handle);
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if(! $sender_handle || ! $recipient_handle)
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return;
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$contact = diaspora_get_contact_by_handle($importer['uid'],$sender_handle);
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if($contact) {
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// perhaps we were already sharing with this person. Now they're sharing with us.
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// That makes us friends.
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if($contact['rel'] == CONTACT_IS_FOLLOWER) {
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q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
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intval(CONTACT_IS_FRIEND),
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intval($contact['id']),
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intval($importer['uid'])
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);
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}
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// send notification?
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return;
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}
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$ret = find_diaspora_person_by_handle($sender_handle);
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if((! count($ret)) || ($ret['network'] != NETWORK_DIASPORA)) {
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logger('diaspora_request: Cannot resolve diaspora handle ' . $sender_handle . ' for ' . $recipient_handle);
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return;
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}
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$r = q("INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
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VALUES ( %d, '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s',%d,%d) ",
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intval($importer['uid']),
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dbesc($ret['network']),
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dbesc($ret['addr']),
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datetime_convert(),
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dbesc($ret['url']),
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dbesc($ret['name']),
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dbesc($ret['nick']),
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dbesc($ret['photo']),
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dbesc($ret['pubkey']),
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dbesc($ret['notify']),
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dbesc($ret['poll']),
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1,
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2
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);
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// find the contact record we just created
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$contact_record = diaspora_get_contact_by_handle($importer['uid'],$sender_handle);
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$hash = random_string() . (string) time(); // Generate a confirm_key
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if($contact_record) {
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$ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime` )
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VALUES ( %d, %d, %d, %d, '%s', '%s', '%s' )",
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intval($importer['uid']),
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intval($contact_record['id']),
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0,
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0,
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dbesc( t('Sharing notification from Diaspora network')),
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dbesc($hash),
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dbesc(datetime_convert())
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);
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}
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return;
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}
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function diaspora_post($importer,$xml) {
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$guid = notags(unxmlify($xml->guid));
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$diaspora_handle = notags(unxmlify($xml->diaspora_handle));
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$contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle);
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if(! $contact)
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return;
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if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
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logger('diaspora_post: Ignoring this author.');
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http_status_exit(202);
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// NOTREACHED
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}
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$message_id = $diaspora_handle . ':' . $guid;
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$r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `guid` = '%s' LIMIT 1",
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intval($importer['uid']),
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dbesc($message_id),
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dbesc($guid)
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);
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if(count($r))
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return;
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// allocate a guid on our system - we aren't fixing any collisions.
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// we're ignoring them
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$g = q("select * from guid where guid = '%s' limit 1",
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dbesc($guid)
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);
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if(! count($g)) {
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q("insert into guid ( guid ) values ( '%s' )",
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dbesc($guid)
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);
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}
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$created = unxmlify($xml->created_at);
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$private = ((unxmlify($xml->public) == 'false') ? 1 : 0);
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$body = diaspora2bb($xml->raw_message);
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$datarray = array();
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$datarray['uid'] = $importer['uid'];
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$datarray['contact-id'] = $contact['id'];
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$datarray['wall'] = 0;
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$datarray['guid'] = $guid;
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$datarray['uri'] = $datarray['parent-uri'] = $message_id;
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$datarray['created'] = $datarray['edited'] = datetime_convert('UTC','UTC',$created);
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$datarray['private'] = $private;
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$datarray['parent'] = 0;
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$datarray['owner-name'] = $contact['name'];
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$datarray['owner-link'] = $contact['url'];
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$datarray['owner-avatar'] = $contact['thumb'];
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$datarray['author-name'] = $contact['name'];
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$datarray['author-link'] = $contact['url'];
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$datarray['author-avatar'] = $contact['thumb'];
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$datarray['body'] = $body;
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$datarray['app'] = 'Diaspora';
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item_store($datarray);
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return;
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}
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function diaspora_comment($importer,$xml,$msg) {
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$guid = notags(unxmlify($xml->guid));
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$parent_guid = notags(unxmlify($xml->parent_guid));
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$diaspora_handle = notags(unxmlify($xml->diaspora_handle));
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$target_type = notags(unxmlify($xml->target_type));
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$text = unxmlify($xml->text);
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$author_signature = notags(unxmlify($xml->author_signature));
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$parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : '');
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$text = $xml->text;
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$contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
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if(! $contact)
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return;
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if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
|
|
logger('diaspora_comment: Ignoring this author.');
|
|
http_status_exit(202);
|
|
// NOTREACHED
|
|
}
|
|
|
|
$r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
|
|
intval($importer['uid']),
|
|
dbesc($guid)
|
|
);
|
|
if(count($r)) {
|
|
logger('daspora_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,'sha')) {
|
|
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,'sha')) {
|
|
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();
|
|
$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'] = $contact['name'];
|
|
$datarray['owner-link'] = $contact['url'];
|
|
$datarray['owner-avatar'] = $contact['thumb'];
|
|
|
|
$datarray['author-name'] = $person['name'];
|
|
$datarray['author-link'] = $person['url'];
|
|
$datarray['author-avatar'] = ((x($person,'thumb')) ? $person['thumb'] : $person['photo']);
|
|
$datarray['body'] = $body;
|
|
$datarray['app'] = 'Diaspora';
|
|
|
|
$message_id = item_store($datarray);
|
|
|
|
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) {
|
|
|
|
$remote_photo_path = notags(unxmlify($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.');
|
|
http_status_exit(202);
|
|
// NOTREACHED
|
|
}
|
|
|
|
$r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
|
|
intval($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";
|
|
|
|
$r = q("update item set `body` = '%s' where `id` = %d and `uid` = %d limit 1",
|
|
dbesc($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(! $contact)
|
|
return;
|
|
|
|
if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
|
|
logger('diaspora_like: Ignoring this author.');
|
|
http_status_exit(202);
|
|
// NOTREACHED
|
|
}
|
|
|
|
$r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
|
|
intval($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,'sha')) {
|
|
logger('diaspora_like: verification failed.');
|
|
return;
|
|
}
|
|
|
|
if($parent_author_signature) {
|
|
// $owner_signed_data = $guid . ';' . $parent_guid . ';' . $target_type . ';' . $positive . ';' . $msg['author'];
|
|
$owner_signed_data = $guid . ';' . $parent_guid . ';' . $target_type . ';' . $positive . ';' . $diaspora_handle;
|
|
|
|
$parent_author_signature = base64_decode($parent_author_signature);
|
|
|
|
$key = $msg['key'];
|
|
|
|
if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha')) {
|
|
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('<link rel="alternate" type="text/html" href="' . $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $parent_item['id'] . '" />' . "\n") ;
|
|
$body = $parent_item['body'];
|
|
|
|
$obj = <<< EOT
|
|
|
|
<object>
|
|
<type>$objtype</type>
|
|
<local>1</local>
|
|
<id>{$parent_item['uri']}</id>
|
|
<link>$link</link>
|
|
<title></title>
|
|
<content>$body</content>
|
|
</object>
|
|
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(! $parent_author_signature) {
|
|
q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
|
|
intval($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'])
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
http_exit_status(202);
|
|
// NOTREACHED
|
|
}
|
|
|
|
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,$slap));
|
|
}
|
|
|
|
function diaspora_unshare($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,$slap));
|
|
|
|
}
|
|
|
|
|
|
|
|
function diaspora_send_status($item,$owner,$contact) {
|
|
|
|
$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'],t('link'),$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'])));
|
|
|
|
$return_code = diaspora_transmit($owner,$contact,$slap);
|
|
|
|
if(count($images)) {
|
|
diaspora_send_images($item,$owner,$contact,$images);
|
|
}
|
|
|
|
return $return_code;
|
|
}
|
|
|
|
|
|
function diaspora_send_images($item,$owner,$contact,$images) {
|
|
$a = get_app();
|
|
if(! count($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'])));
|
|
|
|
diaspora_transmit($owner,$contact,$slap);
|
|
}
|
|
|
|
}
|
|
|
|
function diaspora_send_followup($item,$owner,$contact) {
|
|
|
|
$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'],'sha'));
|
|
|
|
$msg = replace_macros($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'])));
|
|
|
|
return(diaspora_transmit($owner,$contact,$slap));
|
|
}
|
|
|
|
|
|
function diaspora_send_relay($item,$owner,$contact) {
|
|
|
|
|
|
$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;
|
|
}
|
|
|
|
$itemcontact = q("select * from contact where `id` = %d limit 1",
|
|
intval($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.
|
|
}
|
|
}
|
|
|
|
$text = html_entity_decode(bb2diaspora($item['body']));
|
|
|
|
// fetch the original signature if somebody sent the post to us to relay
|
|
// If we are relaying for a reply originating here, 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
|
|
|
|
$r = q("select * from sign where iid = %d limit 1",
|
|
intval($item['id'])
|
|
);
|
|
if(count($r)) {
|
|
$orig_sign = $r[0];
|
|
$signed_text = $orig_sign['signed_text'];
|
|
$authorsig = $orig_sign['signature'];
|
|
}
|
|
else {
|
|
|
|
|
|
|
|
|
|
if($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,$owner['uprvkey'],'sha'));
|
|
|
|
q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
|
|
intval($item['id']),
|
|
dbesc($signed_text),
|
|
dbesc(base64_encode($authorsig)),
|
|
dbesc($myaddr)
|
|
);
|
|
|
|
}
|
|
|
|
// sign it
|
|
|
|
$parentauthorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha'));
|
|
|
|
$msg = replace_macros($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),
|
|
'$handle' => xmlify($myaddr)
|
|
));
|
|
|
|
logger('diaspora_relay_comment: base message: ' . $msg, LOGGER_DATA);
|
|
|
|
$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'])));
|
|
|
|
return(diaspora_transmit($owner,$contact,$slap));
|
|
|
|
}
|
|
|
|
|
|
|
|
function diaspora_send_retraction($item,$owner,$contact) {
|
|
|
|
$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'])));
|
|
|
|
return(diaspora_transmit($owner,$contact,$slap));
|
|
}
|
|
|
|
|
|
|
|
function diaspora_transmit($owner,$contact,$slap) {
|
|
|
|
$a = get_app();
|
|
|
|
post_url($contact['notify'] . '/',$slap);
|
|
$return_code = $a->get_curl_code();
|
|
logger('diaspora_transmit: returns: ' . $return_code);
|
|
|
|
if(! $return_code) {
|
|
logger('diaspora_transmit: queue message');
|
|
// queue message for redelivery
|
|
q("INSERT INTO `queue` ( `cid`, `created`, `last`, `content`)
|
|
VALUES ( %d, '%s', '%s', '%s') ",
|
|
intval($contact['id']),
|
|
dbesc(datetime_convert()),
|
|
dbesc(datetime_convert()),
|
|
dbesc($slap)
|
|
);
|
|
}
|
|
|
|
return(($return_code) ? $return_code : (-1));
|
|
}
|