3694 lines
111 KiB
PHP
3694 lines
111 KiB
PHP
<?php
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/**
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* @file include/diaspora.php
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* @brief The implementation of the diaspora protocol
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*
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* The new protocol is described here: http://diaspora.github.io/diaspora_federation/index.html
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* Currently this implementation here interprets the old and the new protocol and sends the old one.
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* This will change in the future.
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*/
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use \Friendica\Core\Config;
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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/Scrape.php");
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require_once("include/Contact.php");
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require_once("include/Photo.php");
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require_once("include/socgraph.php");
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require_once("include/group.php");
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require_once("include/xml.php");
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require_once("include/datetime.php");
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require_once("include/queue_fn.php");
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require_once("include/cache.php");
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/**
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* @brief This class contain functions to create and send Diaspora XML files
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*
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*/
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class Diaspora {
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/**
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* @brief Return a list of relay servers
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*
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* This is an experimental Diaspora feature.
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*
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* @return array of relay servers
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*/
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public static function relay_list() {
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$serverdata = get_config("system", "relay_server");
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if ($serverdata == "")
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return array();
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$relay = array();
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$servers = explode(",", $serverdata);
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foreach($servers AS $server) {
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$server = trim($server);
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$addr = "relay@".str_replace("http://", "", normalise_link($server));
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$batch = $server."/receive/public";
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$relais = q("SELECT `batch`, `id`, `name`,`network` FROM `contact` WHERE `uid` = 0 AND `batch` = '%s' AND `addr` = '%s' AND `nurl` = '%s' LIMIT 1",
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dbesc($batch), dbesc($addr), dbesc(normalise_link($server)));
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if (!$relais) {
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$r = q("INSERT INTO `contact` (`uid`, `created`, `name`, `nick`, `addr`, `url`, `nurl`, `batch`, `network`, `rel`, `blocked`, `pending`, `writable`, `name-date`, `uri-date`, `avatar-date`)
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VALUES (0, '%s', '%s', 'relay', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, '%s', '%s', '%s')",
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datetime_convert(),
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dbesc($addr),
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dbesc($addr),
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dbesc($server),
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dbesc(normalise_link($server)),
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dbesc($batch),
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dbesc(NETWORK_DIASPORA),
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intval(CONTACT_IS_FOLLOWER),
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dbesc(datetime_convert()),
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dbesc(datetime_convert()),
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dbesc(datetime_convert())
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);
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$relais = q("SELECT `batch`, `id`, `name`,`network` FROM `contact` WHERE `uid` = 0 AND `batch` = '%s' LIMIT 1", dbesc($batch));
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if ($relais)
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$relay[] = $relais[0];
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} else
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$relay[] = $relais[0];
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}
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return $relay;
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}
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/**
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* @brief repairs a signature that was double encoded
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*
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* The function is unused at the moment. It was copied from the old implementation.
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*
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* @param string $signature The signature
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* @param string $handle The handle of the signature owner
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* @param integer $level This value is only set inside this function to avoid endless loops
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*
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* @return string the repaired signature
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*/
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private static function repair_signature($signature, $handle = "", $level = 1) {
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if ($signature == "")
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return ($signature);
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if (base64_encode(base64_decode(base64_decode($signature))) == base64_decode($signature)) {
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$signature = base64_decode($signature);
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logger("Repaired double encoded signature from Diaspora/Hubzilla handle ".$handle." - level ".$level, LOGGER_DEBUG);
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// Do a recursive call to be able to fix even multiple levels
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if ($level < 10)
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$signature = self::repair_signature($signature, $handle, ++$level);
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}
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return($signature);
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}
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/**
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* @brief verify the envelope and return the verified data
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*
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* @param string $envelope The magic envelope
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*
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* @return string verified data
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*/
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private static function verify_magic_envelope($envelope) {
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$basedom = parse_xml_string($envelope, false);
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if (!is_object($basedom)) {
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logger("Envelope is no XML file");
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return false;
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}
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$children = $basedom->children('http://salmon-protocol.org/ns/magic-env');
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if (sizeof($children) == 0) {
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logger("XML has no children");
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return false;
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}
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$handle = "";
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$data = base64url_decode($children->data);
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$type = $children->data->attributes()->type[0];
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$encoding = $children->encoding;
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$alg = $children->alg;
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$sig = base64url_decode($children->sig);
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$key_id = $children->sig->attributes()->key_id[0];
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if ($key_id != "")
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$handle = base64url_decode($key_id);
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$b64url_data = base64url_encode($data);
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$msg = str_replace(array("\n", "\r", " ", "\t"), array("", "", "", ""), $b64url_data);
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$signable_data = $msg.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
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$key = self::key($handle);
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$verify = rsa_verify($signable_data, $sig, $key);
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if (!$verify) {
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logger('Message did not verify. Discarding.');
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return false;
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}
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return $data;
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}
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/**
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* @brief: Decodes incoming Diaspora message
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*
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* @param array $importer Array of the importer user
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* @param string $xml urldecoded Diaspora salmon
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*
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* @return array
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* 'message' -> decoded Diaspora XML message
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* 'author' -> author diaspora handle
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* 'key' -> author public key (converted to pkcs#8)
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*/
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public static function decode($importer, $xml) {
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$public = false;
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$basedom = parse_xml_string($xml);
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if (!is_object($basedom))
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return false;
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$children = $basedom->children('https://joindiaspora.com/protocol');
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if($children->header) {
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$public = true;
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$author_link = str_replace('acct:','',$children->header->author_id);
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} else {
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$encrypted_header = json_decode(base64_decode($children->encrypted_header));
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$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($decrypted);
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logger('decrypted: '.$decrypted, LOGGER_DEBUG);
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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_id);
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}
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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('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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// 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 = $base->alg;
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$signed_data = $data.'.'.base64url_encode($type).'.'.base64url_encode($encoding).'.'.base64url_encode($alg);
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// decode the data
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$data = base64url_decode($data);
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if($public)
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$inner_decrypted = $data;
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else {
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// Decode the encrypted blob
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$inner_encrypted = base64_decode($data);
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$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($inner_decrypted);
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}
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if (!$author_link) {
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logger('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('Fetching key for '.$author_link);
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$key = self::key($author_link);
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if (!$key) {
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logger('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 (!$verify) {
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logger('Message did not verify. Discarding.');
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http_status_exit(400);
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}
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logger('Message verified.');
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return array('message' => (string)$inner_decrypted,
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'author' => unxmlify($author_link),
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'key' => (string)$key);
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}
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/**
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* @brief Dispatches public messages and find the fitting receivers
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*
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* @param array $msg The post that will be dispatched
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*
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* @return int The message id of the generated message, "true" or "false" if there was an error
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*/
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public static function dispatch_public($msg) {
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$enabled = intval(get_config("system", "diaspora_enabled"));
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if (!$enabled) {
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logger("diaspora is disabled");
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return false;
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}
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// Now distribute it to the followers
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$r = q("SELECT `user`.* FROM `user` WHERE `user`.`uid` IN
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(SELECT `contact`.`uid` FROM `contact` WHERE `contact`.`network` = '%s' AND `contact`.`addr` = '%s')
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AND NOT `account_expired` AND NOT `account_removed`",
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dbesc(NETWORK_DIASPORA),
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dbesc($msg["author"])
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);
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if (dbm::is_result($r)) {
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foreach ($r as $rr) {
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logger("delivering to: ".$rr["username"]);
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self::dispatch($rr,$msg);
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}
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} else {
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$social_relay = (bool)Config::get('system', 'relay_subscribe', false);
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// Use a dummy importer to import the data for the public copy
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if ($social_relay) {
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$importer = array("uid" => 0, "page-flags" => PAGE_FREELOVE);
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$message_id = self::dispatch($importer,$msg);
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} else {
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logger("Unwanted message from ".$msg["author"]." send by ".$_SERVER["REMOTE_ADDR"]." with ".$_SERVER["HTTP_USER_AGENT"].": ".print_r($msg, true), LOGGER_DEBUG);
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}
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}
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return $message_id;
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}
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/**
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* @brief Dispatches the different message types to the different functions
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*
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* @param array $importer Array of the importer user
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* @param array $msg The post that will be dispatched
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*
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* @return int The message id of the generated message, "true" or "false" if there was an error
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*/
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public static function dispatch($importer, $msg) {
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// The sender is the handle of the contact that sent the message.
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// This will often be different with relayed messages (for example "like" and "comment")
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$sender = $msg["author"];
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if (!self::valid_posting($msg, $fields)) {
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logger("Invalid posting");
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return false;
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}
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$type = $fields->getName();
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logger("Received message type ".$type." from ".$sender." for user ".$importer["uid"], LOGGER_DEBUG);
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switch ($type) {
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case "account_deletion":
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return self::receive_account_deletion($importer, $fields);
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case "comment":
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return self::receive_comment($importer, $sender, $fields, $msg["message"]);
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case "contact":
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return self::receive_contact_request($importer, $fields);
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case "conversation":
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return self::receive_conversation($importer, $msg, $fields);
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case "like":
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return self::receive_like($importer, $sender, $fields);
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case "message":
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return self::receive_message($importer, $fields);
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case "participation": // Not implemented
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return self::receive_participation($importer, $fields);
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case "photo": // Not implemented
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return self::receive_photo($importer, $fields);
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case "poll_participation": // Not implemented
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return self::receive_poll_participation($importer, $fields);
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case "profile":
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return self::receive_profile($importer, $fields);
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case "reshare":
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return self::receive_reshare($importer, $fields, $msg["message"]);
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case "retraction":
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return self::receive_retraction($importer, $sender, $fields);
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case "status_message":
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return self::receive_status_message($importer, $fields, $msg["message"]);
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default:
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logger("Unknown message type ".$type);
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return false;
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}
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return true;
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}
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/**
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* @brief Checks if a posting is valid and fetches the data fields.
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*
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* This function does not only check the signature.
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* It also does the conversion between the old and the new diaspora format.
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*
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* @param array $msg Array with the XML, the sender handle and the sender signature
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* @param object $fields SimpleXML object that contains the posting when it is valid
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*
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* @return bool Is the posting valid?
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*/
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private static function valid_posting($msg, &$fields) {
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$data = parse_xml_string($msg["message"], false);
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if (!is_object($data)) {
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logger("No valid XML ".$msg["message"], LOGGER_DEBUG);
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return false;
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}
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$first_child = $data->getName();
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// Is this the new or the old version?
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if ($data->getName() == "XML") {
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$oldXML = true;
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foreach ($data->post->children() as $child)
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$element = $child;
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} else {
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$oldXML = false;
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$element = $data;
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}
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$type = $element->getName();
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$orig_type = $type;
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logger("Got message type ".$type.": ".$msg["message"], LOGGER_DATA);
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// All retractions are handled identically from now on.
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// In the new version there will only be "retraction".
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if (in_array($type, array("signed_retraction", "relayable_retraction")))
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$type = "retraction";
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if ($type == "request")
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$type = "contact";
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$fields = new SimpleXMLElement("<".$type."/>");
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$signed_data = "";
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foreach ($element->children() AS $fieldname => $entry) {
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if ($oldXML) {
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// Translation for the old XML structure
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if ($fieldname == "diaspora_handle")
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$fieldname = "author";
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if ($fieldname == "participant_handles")
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$fieldname = "participants";
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if (in_array($type, array("like", "participation"))) {
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if ($fieldname == "target_type")
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$fieldname = "parent_type";
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}
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if ($fieldname == "sender_handle")
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$fieldname = "author";
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if ($fieldname == "recipient_handle")
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$fieldname = "recipient";
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if ($fieldname == "root_diaspora_id")
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$fieldname = "root_author";
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if ($type == "retraction") {
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if ($fieldname == "post_guid")
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$fieldname = "target_guid";
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if ($fieldname == "type")
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$fieldname = "target_type";
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}
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}
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if (($fieldname == "author_signature") AND ($entry != ""))
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$author_signature = base64_decode($entry);
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elseif (($fieldname == "parent_author_signature") AND ($entry != ""))
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$parent_author_signature = base64_decode($entry);
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elseif (!in_array($fieldname, array("author_signature", "parent_author_signature", "target_author_signature"))) {
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if ($signed_data != "") {
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$signed_data .= ";";
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$signed_data_parent .= ";";
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}
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$signed_data .= $entry;
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}
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if (!in_array($fieldname, array("parent_author_signature", "target_author_signature")) OR
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($orig_type == "relayable_retraction"))
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xml::copy($entry, $fields, $fieldname);
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}
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// This is something that shouldn't happen at all.
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if (in_array($type, array("status_message", "reshare", "profile")))
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if ($msg["author"] != $fields->author) {
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logger("Message handle is not the same as envelope sender. Quitting this message.");
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return false;
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}
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// Only some message types have signatures. So we quit here for the other types.
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if (!in_array($type, array("comment", "message", "like")))
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return true;
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// No author_signature? This is a must, so we quit.
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if (!isset($author_signature)) {
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logger("No author signature for type ".$type." - Message: ".$msg["message"], LOGGER_DEBUG);
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return false;
|
|
}
|
|
|
|
if (isset($parent_author_signature)) {
|
|
$key = self::key($msg["author"]);
|
|
|
|
if (!rsa_verify($signed_data, $parent_author_signature, $key, "sha256")) {
|
|
logger("No valid parent author signature for parent author ".$msg["author"]. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$parent_author_signature, LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
$key = self::key($fields->author);
|
|
|
|
if (!rsa_verify($signed_data, $author_signature, $key, "sha256")) {
|
|
logger("No valid author signature for author ".$fields->author. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$author_signature, LOGGER_DEBUG);
|
|
return false;
|
|
} else
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Fetches the public key for a given handle
|
|
*
|
|
* @param string $handle The handle
|
|
*
|
|
* @return string The public key
|
|
*/
|
|
private static function key($handle) {
|
|
$handle = strval($handle);
|
|
|
|
logger("Fetching diaspora key for: ".$handle);
|
|
|
|
$r = self::person_by_handle($handle);
|
|
if($r)
|
|
return $r["pubkey"];
|
|
|
|
return "";
|
|
}
|
|
|
|
/**
|
|
* @brief Fetches data for a given handle
|
|
*
|
|
* @param string $handle The handle
|
|
*
|
|
* @return array the queried data
|
|
*/
|
|
private static function person_by_handle($handle) {
|
|
|
|
$r = q("SELECT * FROM `fcontact` WHERE `network` = '%s' AND `addr` = '%s' LIMIT 1",
|
|
dbesc(NETWORK_DIASPORA),
|
|
dbesc($handle)
|
|
);
|
|
if ($r) {
|
|
$person = $r[0];
|
|
logger("In cache ".print_r($r,true), LOGGER_DEBUG);
|
|
|
|
// update record occasionally so it doesn't get stale
|
|
$d = strtotime($person["updated"]." +00:00");
|
|
if ($d < strtotime("now - 14 days"))
|
|
$update = true;
|
|
|
|
if ($person["guid"] == "")
|
|
$update = true;
|
|
}
|
|
|
|
if (!$person OR $update) {
|
|
logger("create or refresh", LOGGER_DEBUG);
|
|
$r = probe_url($handle, PROBE_DIASPORA);
|
|
|
|
// Note that Friendica contacts will return a "Diaspora person"
|
|
// if Diaspora connectivity is enabled on their server
|
|
if ($r AND ($r["network"] === NETWORK_DIASPORA)) {
|
|
self::add_fcontact($r, $update);
|
|
$person = $r;
|
|
}
|
|
}
|
|
return $person;
|
|
}
|
|
|
|
/**
|
|
* @brief Updates the fcontact table
|
|
*
|
|
* @param array $arr The fcontact data
|
|
* @param bool $update Update or insert?
|
|
*
|
|
* @return string The id of the fcontact entry
|
|
*/
|
|
private static function add_fcontact($arr, $update = false) {
|
|
|
|
if($update) {
|
|
$r = q("UPDATE `fcontact` SET
|
|
`name` = '%s',
|
|
`photo` = '%s',
|
|
`request` = '%s',
|
|
`nick` = '%s',
|
|
`addr` = '%s',
|
|
`guid` = '%s',
|
|
`batch` = '%s',
|
|
`notify` = '%s',
|
|
`poll` = '%s',
|
|
`confirm` = '%s',
|
|
`alias` = '%s',
|
|
`pubkey` = '%s',
|
|
`updated` = '%s'
|
|
WHERE `url` = '%s' AND `network` = '%s'",
|
|
dbesc($arr["name"]),
|
|
dbesc($arr["photo"]),
|
|
dbesc($arr["request"]),
|
|
dbesc($arr["nick"]),
|
|
dbesc(strtolower($arr["addr"])),
|
|
dbesc($arr["guid"]),
|
|
dbesc($arr["batch"]),
|
|
dbesc($arr["notify"]),
|
|
dbesc($arr["poll"]),
|
|
dbesc($arr["confirm"]),
|
|
dbesc($arr["alias"]),
|
|
dbesc($arr["pubkey"]),
|
|
dbesc(datetime_convert()),
|
|
dbesc($arr["url"]),
|
|
dbesc($arr["network"])
|
|
);
|
|
} else {
|
|
$r = q("INSERT INTO `fcontact` (`url`,`name`,`photo`,`request`,`nick`,`addr`, `guid`,
|
|
`batch`, `notify`,`poll`,`confirm`,`network`,`alias`,`pubkey`,`updated`)
|
|
VALUES ('%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s')",
|
|
dbesc($arr["url"]),
|
|
dbesc($arr["name"]),
|
|
dbesc($arr["photo"]),
|
|
dbesc($arr["request"]),
|
|
dbesc($arr["nick"]),
|
|
dbesc($arr["addr"]),
|
|
dbesc($arr["guid"]),
|
|
dbesc($arr["batch"]),
|
|
dbesc($arr["notify"]),
|
|
dbesc($arr["poll"]),
|
|
dbesc($arr["confirm"]),
|
|
dbesc($arr["network"]),
|
|
dbesc($arr["alias"]),
|
|
dbesc($arr["pubkey"]),
|
|
dbesc(datetime_convert())
|
|
);
|
|
}
|
|
|
|
return $r;
|
|
}
|
|
|
|
/**
|
|
* @brief get a handle (user@domain.tld) from a given contact id or gcontact id
|
|
*
|
|
* @param int $contact_id The id in the contact table
|
|
* @param int $gcontact_id The id in the gcontact table
|
|
*
|
|
* @return string the handle
|
|
*/
|
|
public static function handle_from_contact($contact_id, $gcontact_id = 0) {
|
|
$handle = false;
|
|
|
|
logger("contact id is ".$contact_id." - gcontact id is ".$gcontact_id, LOGGER_DEBUG);
|
|
|
|
if ($gcontact_id != 0) {
|
|
$r = q("SELECT `addr` FROM `gcontact` WHERE `id` = %d AND `addr` != ''",
|
|
intval($gcontact_id));
|
|
|
|
if (dbm::is_result($r)) {
|
|
return strtolower($r[0]["addr"]);
|
|
}
|
|
}
|
|
|
|
$r = q("SELECT `network`, `addr`, `self`, `url`, `nick` FROM `contact` WHERE `id` = %d",
|
|
intval($contact_id));
|
|
|
|
if (dbm::is_result($r)) {
|
|
$contact = $r[0];
|
|
|
|
logger("contact 'self' = ".$contact['self']." 'url' = ".$contact['url'], LOGGER_DEBUG);
|
|
|
|
if ($contact['addr'] != "") {
|
|
$handle = $contact['addr'];
|
|
} else {
|
|
$baseurl_start = strpos($contact['url'],'://') + 3;
|
|
$baseurl_length = strpos($contact['url'],'/profile') - $baseurl_start; // allows installations in a subdirectory--not sure how Diaspora will handle
|
|
$baseurl = substr($contact['url'], $baseurl_start, $baseurl_length);
|
|
$handle = $contact['nick'].'@'.$baseurl;
|
|
}
|
|
}
|
|
|
|
return strtolower($handle);
|
|
}
|
|
|
|
/**
|
|
* @brief get a url (scheme://domain.tld/u/user) from a given Diaspora*
|
|
* fcontact guid
|
|
*
|
|
* @param mixed $fcontact_guid Hexadecimal string guid
|
|
*
|
|
* @return string the contact url or null
|
|
*/
|
|
public static function url_from_contact_guid($fcontact_guid) {
|
|
logger("fcontact guid is ".$fcontact_guid, LOGGER_DEBUG);
|
|
|
|
$r = q("SELECT `url` FROM `fcontact` WHERE `url` != '' AND `network` = '%s' AND `guid` = '%s'",
|
|
dbesc(NETWORK_DIASPORA),
|
|
dbesc($fcontact_guid)
|
|
);
|
|
|
|
if (dbm::is_result($r)) {
|
|
return $r[0]['url'];
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @brief Get a contact id for a given handle
|
|
*
|
|
* @param int $uid The user id
|
|
* @param string $handle The handle in the format user@domain.tld
|
|
*
|
|
* @return The contact id
|
|
*/
|
|
private static function contact_by_handle($uid, $handle) {
|
|
|
|
// First do a direct search on the contact table
|
|
$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `addr` = '%s' LIMIT 1",
|
|
intval($uid),
|
|
dbesc($handle)
|
|
);
|
|
|
|
if (dbm::is_result($r)) {
|
|
return $r[0];
|
|
} else {
|
|
// We haven't found it?
|
|
// We use another function for it that will possibly create a contact entry
|
|
$cid = get_contact($handle, $uid);
|
|
|
|
if ($cid > 0) {
|
|
$r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1", intval($cid));
|
|
|
|
if (dbm::is_result($r)) {
|
|
return $r[0];
|
|
}
|
|
}
|
|
}
|
|
|
|
$handle_parts = explode("@", $handle);
|
|
$nurl_sql = "%%://".$handle_parts[1]."%%/profile/".$handle_parts[0];
|
|
$r = q("SELECT * FROM `contact` WHERE `network` = '%s' AND `uid` = %d AND `nurl` LIKE '%s' LIMIT 1",
|
|
dbesc(NETWORK_DFRN),
|
|
intval($uid),
|
|
dbesc($nurl_sql)
|
|
);
|
|
if (dbm::is_result($r)) {
|
|
return $r[0];
|
|
}
|
|
|
|
logger("Haven't found contact for user ".$uid." and handle ".$handle, LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @brief Check if posting is allowed for this contact
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param array $contact The contact that is checked
|
|
* @param bool $is_comment Is the check for a comment?
|
|
*
|
|
* @return bool is the contact allowed to post?
|
|
*/
|
|
private static function post_allow($importer, $contact, $is_comment = false) {
|
|
|
|
// perhaps we were already sharing with this person. Now they're sharing with us.
|
|
// That makes us friends.
|
|
// Normally this should have handled by getting a request - but this could get lost
|
|
if($contact["rel"] == CONTACT_IS_FOLLOWER && in_array($importer["page-flags"], array(PAGE_FREELOVE))) {
|
|
q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d",
|
|
intval(CONTACT_IS_FRIEND),
|
|
intval($contact["id"]),
|
|
intval($importer["uid"])
|
|
);
|
|
$contact["rel"] = CONTACT_IS_FRIEND;
|
|
logger("defining user ".$contact["nick"]." as friend");
|
|
}
|
|
|
|
if(($contact["blocked"]) || ($contact["readonly"]) || ($contact["archive"]))
|
|
return false;
|
|
if($contact["rel"] == CONTACT_IS_SHARING || $contact["rel"] == CONTACT_IS_FRIEND)
|
|
return true;
|
|
if($contact["rel"] == CONTACT_IS_FOLLOWER)
|
|
if(($importer["page-flags"] == PAGE_COMMUNITY) OR $is_comment)
|
|
return true;
|
|
|
|
// Messages for the global users are always accepted
|
|
if ($importer["uid"] == 0)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @brief Fetches the contact id for a handle and checks if posting is allowed
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param string $handle The checked handle in the format user@domain.tld
|
|
* @param bool $is_comment Is the check for a comment?
|
|
*
|
|
* @return array The contact data
|
|
*/
|
|
private static function allowed_contact_by_handle($importer, $handle, $is_comment = false) {
|
|
$contact = self::contact_by_handle($importer["uid"], $handle);
|
|
if (!$contact) {
|
|
logger("A Contact for handle ".$handle." and user ".$importer["uid"]." was not found");
|
|
return false;
|
|
}
|
|
|
|
if (!self::post_allow($importer, $contact, $is_comment)) {
|
|
logger("The handle: ".$handle." is not allowed to post to user ".$importer["uid"]);
|
|
return false;
|
|
}
|
|
return $contact;
|
|
}
|
|
|
|
/**
|
|
* @brief Does the message already exists on the system?
|
|
*
|
|
* @param int $uid The user id
|
|
* @param string $guid The guid of the message
|
|
*
|
|
* @return int|bool message id if the message already was stored into the system - or false.
|
|
*/
|
|
private static function message_exists($uid, $guid) {
|
|
$r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
|
|
intval($uid),
|
|
dbesc($guid)
|
|
);
|
|
|
|
if (dbm::is_result($r)) {
|
|
logger("message ".$guid." already exists for user ".$uid);
|
|
return $r[0]["id"];
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @brief Checks for links to posts in a message
|
|
*
|
|
* @param array $item The item array
|
|
*/
|
|
private static function fetch_guid($item) {
|
|
preg_replace_callback("&\[url=/posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
|
|
function ($match) use ($item){
|
|
return(self::fetch_guid_sub($match, $item));
|
|
},$item["body"]);
|
|
}
|
|
|
|
/**
|
|
* @brief Checks for relative /people/* links in an item body to match local
|
|
* contacts or prepends the remote host taken from the author link.
|
|
*
|
|
* @param string $body The item body to replace links from
|
|
* @param string $author_link The author link for missing local contact fallback
|
|
*
|
|
* @return the replaced string
|
|
*/
|
|
public function replace_people_guid($body, $author_link) {
|
|
$return = preg_replace_callback("&\[url=/people/([^\[\]]*)\](.*)\[\/url\]&Usi",
|
|
function ($match) use ($author_link) {
|
|
// $match
|
|
// 0 => '[url=/people/0123456789abcdef]Foo Bar[/url]'
|
|
// 1 => '0123456789abcdef'
|
|
// 2 => 'Foo Bar'
|
|
$handle = self::url_from_contact_guid($match[1]);
|
|
|
|
if ($handle) {
|
|
$return = '@[url='.$handle.']'.$match[2].'[/url]';
|
|
} else {
|
|
// No local match, restoring absolute remote URL from author scheme and host
|
|
$author_url = parse_url($author_link);
|
|
$return = '[url='.$author_url['scheme'].'://'.$author_url['host'].'/people/'.$match[1].']'.$match[2].'[/url]';
|
|
}
|
|
|
|
return $return;
|
|
}, $body);
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* @brief sub function of "fetch_guid" which checks for links in messages
|
|
*
|
|
* @param array $match array containing a link that has to be checked for a message link
|
|
* @param array $item The item array
|
|
*/
|
|
private static function fetch_guid_sub($match, $item) {
|
|
if (!self::store_by_guid($match[1], $item["author-link"]))
|
|
self::store_by_guid($match[1], $item["owner-link"]);
|
|
}
|
|
|
|
/**
|
|
* @brief Fetches an item with a given guid from a given server
|
|
*
|
|
* @param string $guid the message guid
|
|
* @param string $server The server address
|
|
* @param int $uid The user id of the user
|
|
*
|
|
* @return int the message id of the stored message or false
|
|
*/
|
|
private static function store_by_guid($guid, $server, $uid = 0) {
|
|
$serverparts = parse_url($server);
|
|
$server = $serverparts["scheme"]."://".$serverparts["host"];
|
|
|
|
logger("Trying to fetch item ".$guid." from ".$server, LOGGER_DEBUG);
|
|
|
|
$msg = self::message($guid, $server);
|
|
|
|
if (!$msg)
|
|
return false;
|
|
|
|
logger("Successfully fetched item ".$guid." from ".$server, LOGGER_DEBUG);
|
|
|
|
// Now call the dispatcher
|
|
return self::dispatch_public($msg);
|
|
}
|
|
|
|
/**
|
|
* @brief Fetches a message from a server
|
|
*
|
|
* @param string $guid message guid
|
|
* @param string $server The url of the server
|
|
* @param int $level Endless loop prevention
|
|
*
|
|
* @return array
|
|
* 'message' => The message XML
|
|
* 'author' => The author handle
|
|
* 'key' => The public key of the author
|
|
*/
|
|
private static function message($guid, $server, $level = 0) {
|
|
|
|
if ($level > 5)
|
|
return false;
|
|
|
|
// This will work for new Diaspora servers and Friendica servers from 3.5
|
|
$source_url = $server."/fetch/post/".$guid;
|
|
logger("Fetch post from ".$source_url, LOGGER_DEBUG);
|
|
|
|
$envelope = fetch_url($source_url);
|
|
if($envelope) {
|
|
logger("Envelope was fetched.", LOGGER_DEBUG);
|
|
$x = self::verify_magic_envelope($envelope);
|
|
if (!$x)
|
|
logger("Envelope could not be verified.", LOGGER_DEBUG);
|
|
else
|
|
logger("Envelope was verified.", LOGGER_DEBUG);
|
|
} else
|
|
$x = false;
|
|
|
|
// This will work for older Diaspora and Friendica servers
|
|
if (!$x) {
|
|
$source_url = $server."/p/".$guid.".xml";
|
|
logger("Fetch post from ".$source_url, LOGGER_DEBUG);
|
|
|
|
$x = fetch_url($source_url);
|
|
if(!$x)
|
|
return false;
|
|
}
|
|
|
|
$source_xml = parse_xml_string($x, false);
|
|
|
|
if (!is_object($source_xml))
|
|
return false;
|
|
|
|
if ($source_xml->post->reshare) {
|
|
// Reshare of a reshare - old Diaspora version
|
|
logger("Message is a reshare", LOGGER_DEBUG);
|
|
return self::message($source_xml->post->reshare->root_guid, $server, ++$level);
|
|
} elseif ($source_xml->getName() == "reshare") {
|
|
// Reshare of a reshare - new Diaspora version
|
|
logger("Message is a new reshare", LOGGER_DEBUG);
|
|
return self::message($source_xml->root_guid, $server, ++$level);
|
|
}
|
|
|
|
$author = "";
|
|
|
|
// Fetch the author - for the old and the new Diaspora version
|
|
if ($source_xml->post->status_message->diaspora_handle)
|
|
$author = (string)$source_xml->post->status_message->diaspora_handle;
|
|
elseif ($source_xml->author AND ($source_xml->getName() == "status_message"))
|
|
$author = (string)$source_xml->author;
|
|
|
|
// If this isn't a "status_message" then quit
|
|
if (!$author) {
|
|
logger("Message doesn't seem to be a status message", LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
|
|
$msg = array("message" => $x, "author" => $author);
|
|
|
|
$msg["key"] = self::key($msg["author"]);
|
|
|
|
return $msg;
|
|
}
|
|
|
|
/**
|
|
* @brief Fetches the item record of a given guid
|
|
*
|
|
* @param int $uid The user id
|
|
* @param string $guid message guid
|
|
* @param string $author The handle of the item
|
|
* @param array $contact The contact of the item owner
|
|
*
|
|
* @return array the item record
|
|
*/
|
|
private static function parent_item($uid, $guid, $author, $contact) {
|
|
$r = q("SELECT `id`, `body`, `wall`, `uri`, `private`, `origin`,
|
|
`author-name`, `author-link`, `author-avatar`,
|
|
`owner-name`, `owner-link`, `owner-avatar`
|
|
FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
|
|
intval($uid), dbesc($guid));
|
|
|
|
if(!$r) {
|
|
$result = self::store_by_guid($guid, $contact["url"], $uid);
|
|
|
|
if (!$result) {
|
|
$person = self::person_by_handle($author);
|
|
$result = self::store_by_guid($guid, $person["url"], $uid);
|
|
}
|
|
|
|
if ($result) {
|
|
logger("Fetched missing item ".$guid." - result: ".$result, LOGGER_DEBUG);
|
|
|
|
$r = q("SELECT `id`, `body`, `wall`, `uri`, `private`, `origin`,
|
|
`author-name`, `author-link`, `author-avatar`,
|
|
`owner-name`, `owner-link`, `owner-avatar`
|
|
FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
|
|
intval($uid), dbesc($guid));
|
|
}
|
|
}
|
|
|
|
if (!$r) {
|
|
logger("parent item not found: parent: ".$guid." - user: ".$uid);
|
|
return false;
|
|
} else {
|
|
logger("parent item found: parent: ".$guid." - user: ".$uid);
|
|
return $r[0];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief returns contact details
|
|
*
|
|
* @param array $contact The default contact if the person isn't found
|
|
* @param array $person The record of the person
|
|
* @param int $uid The user id
|
|
*
|
|
* @return array
|
|
* 'cid' => contact id
|
|
* 'network' => network type
|
|
*/
|
|
private static function author_contact_by_url($contact, $person, $uid) {
|
|
|
|
$r = q("SELECT `id`, `network`, `url` FROM `contact` WHERE `nurl` = '%s' AND `uid` = %d LIMIT 1",
|
|
dbesc(normalise_link($person["url"])), intval($uid));
|
|
if ($r) {
|
|
$cid = $r[0]["id"];
|
|
$network = $r[0]["network"];
|
|
|
|
// We are receiving content from a user that is about to be terminated
|
|
// This means the user is vital, so we remove a possible termination date.
|
|
unmark_for_death($contact);
|
|
} else {
|
|
$cid = $contact["id"];
|
|
$network = NETWORK_DIASPORA;
|
|
}
|
|
|
|
return array("cid" => $cid, "network" => $network);
|
|
}
|
|
|
|
/**
|
|
* @brief Is the profile a hubzilla profile?
|
|
*
|
|
* @param string $url The profile link
|
|
*
|
|
* @return bool is it a hubzilla server?
|
|
*/
|
|
public static function is_redmatrix($url) {
|
|
return(strstr($url, "/channel/"));
|
|
}
|
|
|
|
/**
|
|
* @brief Generate a post link with a given handle and message guid
|
|
*
|
|
* @param string $addr The user handle
|
|
* @param string $guid message guid
|
|
*
|
|
* @return string the post link
|
|
*/
|
|
private static function plink($addr, $guid) {
|
|
$r = q("SELECT `url`, `nick`, `network` FROM `fcontact` WHERE `addr`='%s' LIMIT 1", dbesc($addr));
|
|
|
|
// Fallback
|
|
if (!$r)
|
|
return "https://".substr($addr,strpos($addr,"@")+1)."/posts/".$guid;
|
|
|
|
// Friendica contacts are often detected as Diaspora contacts in the "fcontact" table
|
|
// So we try another way as well.
|
|
$s = q("SELECT `network` FROM `gcontact` WHERE `nurl`='%s' LIMIT 1", dbesc(normalise_link($r[0]["url"])));
|
|
if ($s)
|
|
$r[0]["network"] = $s[0]["network"];
|
|
|
|
if ($r[0]["network"] == NETWORK_DFRN)
|
|
return(str_replace("/profile/".$r[0]["nick"]."/", "/display/".$guid, $r[0]["url"]."/"));
|
|
|
|
if (self::is_redmatrix($r[0]["url"]))
|
|
return $r[0]["url"]."/?f=&mid=".$guid;
|
|
|
|
return "https://".substr($addr,strpos($addr,"@")+1)."/posts/".$guid;
|
|
}
|
|
|
|
/**
|
|
* @brief Processes an account deletion
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param object $data The message object
|
|
*
|
|
* @return bool Success
|
|
*/
|
|
private static function receive_account_deletion($importer, $data) {
|
|
|
|
/// @todo Account deletion should remove the contact from the global contacts as well
|
|
|
|
$author = notags(unxmlify($data->author));
|
|
|
|
$contact = self::contact_by_handle($importer["uid"], $author);
|
|
if (!$contact) {
|
|
logger("cannot find contact for author: ".$author);
|
|
return false;
|
|
}
|
|
|
|
// We now remove the contact
|
|
contact_remove($contact["id"]);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Fetch the uri from our database if we already have this item (maybe from ourselves)
|
|
*
|
|
* @param string $author Author handle
|
|
* @param string $guid Message guid
|
|
* @param boolean $onlyfound Only return uri when found in the database
|
|
*
|
|
* @return string The constructed uri or the one from our database
|
|
*/
|
|
private static function get_uri_from_guid($author, $guid, $onlyfound = false) {
|
|
|
|
$r = q("SELECT `uri` FROM `item` WHERE `guid` = '%s' LIMIT 1", dbesc($guid));
|
|
if (dbm::is_result($r)) {
|
|
return $r[0]["uri"];
|
|
} elseif (!$onlyfound) {
|
|
return $author.":".$guid;
|
|
}
|
|
|
|
return "";
|
|
}
|
|
|
|
/**
|
|
* @brief Fetch the guid from our database with a given uri
|
|
*
|
|
* @param string $author Author handle
|
|
* @param string $uri Message uri
|
|
*
|
|
* @return string The post guid
|
|
*/
|
|
private static function get_guid_from_uri($uri, $uid) {
|
|
|
|
$r = q("SELECT `guid` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1", dbesc($uri), intval($uid));
|
|
if (dbm::is_result($r)) {
|
|
return $r[0]["guid"];
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Processes an incoming comment
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param string $sender The sender of the message
|
|
* @param object $data The message object
|
|
* @param string $xml The original XML of the message
|
|
*
|
|
* @return int The message id of the generated comment or "false" if there was an error
|
|
*/
|
|
private static function receive_comment($importer, $sender, $data, $xml) {
|
|
$guid = notags(unxmlify($data->guid));
|
|
$parent_guid = notags(unxmlify($data->parent_guid));
|
|
$text = unxmlify($data->text);
|
|
$author = notags(unxmlify($data->author));
|
|
|
|
if (isset($data->created_at)) {
|
|
$created_at = datetime_convert("UTC", "UTC", notags(unxmlify($data->created_at)));
|
|
} else {
|
|
$created_at = datetime_convert();
|
|
}
|
|
|
|
if (isset($data->thread_parent_guid)) {
|
|
$thread_parent_guid = notags(unxmlify($data->thread_parent_guid));
|
|
$thr_uri = self::get_uri_from_guid("", $thread_parent_guid, true);
|
|
} else {
|
|
$thr_uri = "";
|
|
}
|
|
|
|
$contact = self::allowed_contact_by_handle($importer, $sender, true);
|
|
if (!$contact) {
|
|
return false;
|
|
}
|
|
|
|
$message_id = self::message_exists($importer["uid"], $guid);
|
|
if ($message_id) {
|
|
return $message_id;
|
|
}
|
|
|
|
$parent_item = self::parent_item($importer["uid"], $parent_guid, $author, $contact);
|
|
if (!$parent_item) {
|
|
return false;
|
|
}
|
|
|
|
$person = self::person_by_handle($author);
|
|
if (!is_array($person)) {
|
|
logger("unable to find author details");
|
|
return false;
|
|
}
|
|
|
|
// Fetch the contact id - if we know this contact
|
|
$author_contact = self::author_contact_by_url($contact, $person, $importer["uid"]);
|
|
|
|
$datarray = array();
|
|
|
|
$datarray["uid"] = $importer["uid"];
|
|
$datarray["contact-id"] = $author_contact["cid"];
|
|
$datarray["network"] = $author_contact["network"];
|
|
|
|
$datarray["author-name"] = $person["name"];
|
|
$datarray["author-link"] = $person["url"];
|
|
$datarray["author-avatar"] = ((x($person,"thumb")) ? $person["thumb"] : $person["photo"]);
|
|
|
|
$datarray["owner-name"] = $contact["name"];
|
|
$datarray["owner-link"] = $contact["url"];
|
|
$datarray["owner-avatar"] = ((x($contact,"thumb")) ? $contact["thumb"] : $contact["photo"]);
|
|
|
|
$datarray["guid"] = $guid;
|
|
$datarray["uri"] = self::get_uri_from_guid($author, $guid);
|
|
|
|
$datarray["type"] = "remote-comment";
|
|
$datarray["verb"] = ACTIVITY_POST;
|
|
$datarray["gravity"] = GRAVITY_COMMENT;
|
|
|
|
if ($thr_uri != "") {
|
|
$datarray["parent-uri"] = $thr_uri;
|
|
} else {
|
|
$datarray["parent-uri"] = $parent_item["uri"];
|
|
}
|
|
|
|
$datarray["object-type"] = ACTIVITY_OBJ_COMMENT;
|
|
$datarray["object"] = $xml;
|
|
|
|
$datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
|
|
|
|
$body = diaspora2bb($text);
|
|
|
|
$datarray["body"] = self::replace_people_guid($body, $person["url"]);
|
|
|
|
self::fetch_guid($datarray);
|
|
|
|
$message_id = item_store($datarray);
|
|
|
|
if ($message_id) {
|
|
logger("Stored comment ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
|
|
}
|
|
|
|
// If we are the origin of the parent we store the original data and notify our followers
|
|
if($message_id AND $parent_item["origin"]) {
|
|
|
|
// Formerly we stored the signed text, the signature and the author in different fields.
|
|
// We now store the raw data so that we are more flexible.
|
|
q("INSERT INTO `sign` (`iid`,`signed_text`) VALUES (%d,'%s')",
|
|
intval($message_id),
|
|
dbesc(json_encode($data))
|
|
);
|
|
|
|
// notify others
|
|
proc_run(PRIORITY_HIGH, "include/notifier.php", "comment-import", $message_id);
|
|
}
|
|
|
|
return $message_id;
|
|
}
|
|
|
|
/**
|
|
* @brief processes and stores private messages
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param array $contact The contact of the message
|
|
* @param object $data The message object
|
|
* @param array $msg Array of the processed message, author handle and key
|
|
* @param object $mesg The private message
|
|
* @param array $conversation The conversation record to which this message belongs
|
|
*
|
|
* @return bool "true" if it was successful
|
|
*/
|
|
private static function receive_conversation_message($importer, $contact, $data, $msg, $mesg, $conversation) {
|
|
$guid = notags(unxmlify($data->guid));
|
|
$subject = notags(unxmlify($data->subject));
|
|
$author = notags(unxmlify($data->author));
|
|
|
|
$msg_guid = notags(unxmlify($mesg->guid));
|
|
$msg_parent_guid = notags(unxmlify($mesg->parent_guid));
|
|
$msg_parent_author_signature = notags(unxmlify($mesg->parent_author_signature));
|
|
$msg_author_signature = notags(unxmlify($mesg->author_signature));
|
|
$msg_text = unxmlify($mesg->text);
|
|
$msg_created_at = datetime_convert("UTC", "UTC", notags(unxmlify($mesg->created_at)));
|
|
|
|
// "diaspora_handle" is the element name from the old version
|
|
// "author" is the element name from the new version
|
|
if ($mesg->author) {
|
|
$msg_author = notags(unxmlify($mesg->author));
|
|
} elseif ($mesg->diaspora_handle) {
|
|
$msg_author = notags(unxmlify($mesg->diaspora_handle));
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
$msg_conversation_guid = notags(unxmlify($mesg->conversation_guid));
|
|
|
|
if ($msg_conversation_guid != $guid) {
|
|
logger("message conversation guid does not belong to the current conversation.");
|
|
return false;
|
|
}
|
|
|
|
$body = diaspora2bb($msg_text);
|
|
$message_uri = $msg_author.":".$msg_guid;
|
|
|
|
$author_signed_data = $msg_guid.";".$msg_parent_guid.";".$msg_text.";".unxmlify($mesg->created_at).";".$msg_author.";".$msg_conversation_guid;
|
|
|
|
$author_signature = base64_decode($msg_author_signature);
|
|
|
|
if (strcasecmp($msg_author,$msg["author"]) == 0) {
|
|
$person = $contact;
|
|
$key = $msg["key"];
|
|
} else {
|
|
$person = self::person_by_handle($msg_author);
|
|
|
|
if (is_array($person) && x($person, "pubkey")) {
|
|
$key = $person["pubkey"];
|
|
} else {
|
|
logger("unable to find author details");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!rsa_verify($author_signed_data, $author_signature, $key, "sha256")) {
|
|
logger("verification failed.");
|
|
return false;
|
|
}
|
|
|
|
if ($msg_parent_author_signature) {
|
|
$owner_signed_data = $msg_guid.";".$msg_parent_guid.";".$msg_text.";".unxmlify($mesg->created_at).";".$msg_author.";".$msg_conversation_guid;
|
|
|
|
$parent_author_signature = base64_decode($msg_parent_author_signature);
|
|
|
|
$key = $msg["key"];
|
|
|
|
if (!rsa_verify($owner_signed_data, $parent_author_signature, $key, "sha256")) {
|
|
logger("owner verification failed.");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
$r = q("SELECT `id` FROM `mail` WHERE `uri` = '%s' LIMIT 1",
|
|
dbesc($message_uri)
|
|
);
|
|
if (dbm::is_result($r)) {
|
|
logger("duplicate message already delivered.", LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
|
|
q("INSERT INTO `mail` (`uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`)
|
|
VALUES (%d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
|
|
intval($importer["uid"]),
|
|
dbesc($msg_guid),
|
|
intval($conversation["id"]),
|
|
dbesc($person["name"]),
|
|
dbesc($person["photo"]),
|
|
dbesc($person["url"]),
|
|
intval($contact["id"]),
|
|
dbesc($subject),
|
|
dbesc($body),
|
|
0,
|
|
0,
|
|
dbesc($message_uri),
|
|
dbesc($author.":".$guid),
|
|
dbesc($msg_created_at)
|
|
);
|
|
|
|
q("UPDATE `conv` SET `updated` = '%s' WHERE `id` = %d",
|
|
dbesc(datetime_convert()),
|
|
intval($conversation["id"])
|
|
);
|
|
|
|
notification(array(
|
|
"type" => NOTIFY_MAIL,
|
|
"notify_flags" => $importer["notify-flags"],
|
|
"language" => $importer["language"],
|
|
"to_name" => $importer["username"],
|
|
"to_email" => $importer["email"],
|
|
"uid" =>$importer["uid"],
|
|
"item" => array("subject" => $subject, "body" => $body),
|
|
"source_name" => $person["name"],
|
|
"source_link" => $person["url"],
|
|
"source_photo" => $person["thumb"],
|
|
"verb" => ACTIVITY_POST,
|
|
"otype" => "mail"
|
|
));
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Processes new private messages (answers to private messages are processed elsewhere)
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param array $msg Array of the processed message, author handle and key
|
|
* @param object $data The message object
|
|
*
|
|
* @return bool Success
|
|
*/
|
|
private static function receive_conversation($importer, $msg, $data) {
|
|
$guid = notags(unxmlify($data->guid));
|
|
$subject = notags(unxmlify($data->subject));
|
|
$created_at = datetime_convert("UTC", "UTC", notags(unxmlify($data->created_at)));
|
|
$author = notags(unxmlify($data->author));
|
|
$participants = notags(unxmlify($data->participants));
|
|
|
|
$messages = $data->message;
|
|
|
|
if (!count($messages)) {
|
|
logger("empty conversation");
|
|
return false;
|
|
}
|
|
|
|
$contact = self::allowed_contact_by_handle($importer, $msg["author"], true);
|
|
if (!$contact)
|
|
return false;
|
|
|
|
$conversation = null;
|
|
|
|
$c = q("SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
|
|
intval($importer["uid"]),
|
|
dbesc($guid)
|
|
);
|
|
if($c)
|
|
$conversation = $c[0];
|
|
else {
|
|
$r = q("INSERT INTO `conv` (`uid`, `guid`, `creator`, `created`, `updated`, `subject`, `recips`)
|
|
VALUES (%d, '%s', '%s', '%s', '%s', '%s', '%s')",
|
|
intval($importer["uid"]),
|
|
dbesc($guid),
|
|
dbesc($author),
|
|
dbesc($created_at),
|
|
dbesc(datetime_convert()),
|
|
dbesc($subject),
|
|
dbesc($participants)
|
|
);
|
|
if($r)
|
|
$c = q("SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
|
|
intval($importer["uid"]),
|
|
dbesc($guid)
|
|
);
|
|
|
|
if($c)
|
|
$conversation = $c[0];
|
|
}
|
|
if (!$conversation) {
|
|
logger("unable to create conversation.");
|
|
return;
|
|
}
|
|
|
|
foreach($messages as $mesg)
|
|
self::receive_conversation_message($importer, $contact, $data, $msg, $mesg, $conversation);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Creates the body for a "like" message
|
|
*
|
|
* @param array $contact The contact that send us the "like"
|
|
* @param array $parent_item The item array of the parent item
|
|
* @param string $guid message guid
|
|
*
|
|
* @return string the body
|
|
*/
|
|
private static function construct_like_body($contact, $parent_item, $guid) {
|
|
$bodyverb = t('%1$s likes %2$s\'s %3$s');
|
|
|
|
$ulink = "[url=".$contact["url"]."]".$contact["name"]."[/url]";
|
|
$alink = "[url=".$parent_item["author-link"]."]".$parent_item["author-name"]."[/url]";
|
|
$plink = "[url=".App::get_baseurl()."/display/".urlencode($guid)."]".t("status")."[/url]";
|
|
|
|
return sprintf($bodyverb, $ulink, $alink, $plink);
|
|
}
|
|
|
|
/**
|
|
* @brief Creates a XML object for a "like"
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param array $parent_item The item array of the parent item
|
|
*
|
|
* @return string The XML
|
|
*/
|
|
private static function construct_like_object($importer, $parent_item) {
|
|
$objtype = ACTIVITY_OBJ_NOTE;
|
|
$link = '<link rel="alternate" type="text/html" href="'.App::get_baseurl()."/display/".$importer["nickname"]."/".$parent_item["id"].'" />';
|
|
$parent_body = $parent_item["body"];
|
|
|
|
$xmldata = array("object" => array("type" => $objtype,
|
|
"local" => "1",
|
|
"id" => $parent_item["uri"],
|
|
"link" => $link,
|
|
"title" => "",
|
|
"content" => $parent_body));
|
|
|
|
return xml::from_array($xmldata, $xml, true);
|
|
}
|
|
|
|
/**
|
|
* @brief Processes "like" messages
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param string $sender The sender of the message
|
|
* @param object $data The message object
|
|
*
|
|
* @return int The message id of the generated like or "false" if there was an error
|
|
*/
|
|
private static function receive_like($importer, $sender, $data) {
|
|
$positive = notags(unxmlify($data->positive));
|
|
$guid = notags(unxmlify($data->guid));
|
|
$parent_type = notags(unxmlify($data->parent_type));
|
|
$parent_guid = notags(unxmlify($data->parent_guid));
|
|
$author = notags(unxmlify($data->author));
|
|
|
|
// likes on comments aren't supported by Diaspora - only on posts
|
|
// But maybe this will be supported in the future, so we will accept it.
|
|
if (!in_array($parent_type, array("Post", "Comment")))
|
|
return false;
|
|
|
|
$contact = self::allowed_contact_by_handle($importer, $sender, true);
|
|
if (!$contact)
|
|
return false;
|
|
|
|
$message_id = self::message_exists($importer["uid"], $guid);
|
|
if ($message_id)
|
|
return $message_id;
|
|
|
|
$parent_item = self::parent_item($importer["uid"], $parent_guid, $author, $contact);
|
|
if (!$parent_item)
|
|
return false;
|
|
|
|
$person = self::person_by_handle($author);
|
|
if (!is_array($person)) {
|
|
logger("unable to find author details");
|
|
return false;
|
|
}
|
|
|
|
// Fetch the contact id - if we know this contact
|
|
$author_contact = self::author_contact_by_url($contact, $person, $importer["uid"]);
|
|
|
|
// "positive" = "false" would be a Dislike - wich isn't currently supported by Diaspora
|
|
// We would accept this anyhow.
|
|
if ($positive == "true")
|
|
$verb = ACTIVITY_LIKE;
|
|
else
|
|
$verb = ACTIVITY_DISLIKE;
|
|
|
|
$datarray = array();
|
|
|
|
$datarray["uid"] = $importer["uid"];
|
|
$datarray["contact-id"] = $author_contact["cid"];
|
|
$datarray["network"] = $author_contact["network"];
|
|
|
|
$datarray["author-name"] = $person["name"];
|
|
$datarray["author-link"] = $person["url"];
|
|
$datarray["author-avatar"] = ((x($person,"thumb")) ? $person["thumb"] : $person["photo"]);
|
|
|
|
$datarray["owner-name"] = $contact["name"];
|
|
$datarray["owner-link"] = $contact["url"];
|
|
$datarray["owner-avatar"] = ((x($contact,"thumb")) ? $contact["thumb"] : $contact["photo"]);
|
|
|
|
$datarray["guid"] = $guid;
|
|
$datarray["uri"] = self::get_uri_from_guid($author, $guid);
|
|
|
|
$datarray["type"] = "activity";
|
|
$datarray["verb"] = $verb;
|
|
$datarray["gravity"] = GRAVITY_LIKE;
|
|
$datarray["parent-uri"] = $parent_item["uri"];
|
|
|
|
$datarray["object-type"] = ACTIVITY_OBJ_NOTE;
|
|
$datarray["object"] = self::construct_like_object($importer, $parent_item);
|
|
|
|
$datarray["body"] = self::construct_like_body($contact, $parent_item, $guid);
|
|
|
|
$message_id = item_store($datarray);
|
|
|
|
if ($message_id)
|
|
logger("Stored like ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
|
|
|
|
// If we are the origin of the parent we store the original data and notify our followers
|
|
if($message_id AND $parent_item["origin"]) {
|
|
|
|
// Formerly we stored the signed text, the signature and the author in different fields.
|
|
// We now store the raw data so that we are more flexible.
|
|
q("INSERT INTO `sign` (`iid`,`signed_text`) VALUES (%d,'%s')",
|
|
intval($message_id),
|
|
dbesc(json_encode($data))
|
|
);
|
|
|
|
// notify others
|
|
proc_run(PRIORITY_HIGH, "include/notifier.php", "comment-import", $message_id);
|
|
}
|
|
|
|
return $message_id;
|
|
}
|
|
|
|
/**
|
|
* @brief Processes private messages
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param object $data The message object
|
|
*
|
|
* @return bool Success?
|
|
*/
|
|
private static function receive_message($importer, $data) {
|
|
$guid = notags(unxmlify($data->guid));
|
|
$parent_guid = notags(unxmlify($data->parent_guid));
|
|
$text = unxmlify($data->text);
|
|
$created_at = datetime_convert("UTC", "UTC", notags(unxmlify($data->created_at)));
|
|
$author = notags(unxmlify($data->author));
|
|
$conversation_guid = notags(unxmlify($data->conversation_guid));
|
|
|
|
$contact = self::allowed_contact_by_handle($importer, $author, true);
|
|
if (!$contact) {
|
|
return false;
|
|
}
|
|
|
|
$conversation = null;
|
|
|
|
$c = q("SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
|
|
intval($importer["uid"]),
|
|
dbesc($conversation_guid)
|
|
);
|
|
if ($c) {
|
|
$conversation = $c[0];
|
|
} else {
|
|
logger("conversation not available.");
|
|
return false;
|
|
}
|
|
|
|
$message_uri = $author.":".$guid;
|
|
|
|
$person = self::person_by_handle($author);
|
|
if (!$person) {
|
|
logger("unable to find author details");
|
|
return false;
|
|
}
|
|
|
|
$r = q("SELECT `id` FROM `mail` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
|
|
dbesc($message_uri),
|
|
intval($importer["uid"])
|
|
);
|
|
if (dbm::is_result($r)) {
|
|
logger("duplicate message already delivered.", LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
|
|
$body = diaspora2bb($text);
|
|
|
|
$body = self::replace_people_guid($body, $person["url"]);
|
|
|
|
q("INSERT INTO `mail` (`uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`)
|
|
VALUES ( %d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
|
|
intval($importer["uid"]),
|
|
dbesc($guid),
|
|
intval($conversation["id"]),
|
|
dbesc($person["name"]),
|
|
dbesc($person["photo"]),
|
|
dbesc($person["url"]),
|
|
intval($contact["id"]),
|
|
dbesc($conversation["subject"]),
|
|
dbesc($body),
|
|
0,
|
|
1,
|
|
dbesc($message_uri),
|
|
dbesc($author.":".$parent_guid),
|
|
dbesc($created_at)
|
|
);
|
|
|
|
q("UPDATE `conv` SET `updated` = '%s' WHERE `id` = %d",
|
|
dbesc(datetime_convert()),
|
|
intval($conversation["id"])
|
|
);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Processes participations - unsupported by now
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param object $data The message object
|
|
*
|
|
* @return bool always true
|
|
*/
|
|
private static function receive_participation($importer, $data) {
|
|
// I'm not sure if we can fully support this message type
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Processes photos - unneeded
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param object $data The message object
|
|
*
|
|
* @return bool always true
|
|
*/
|
|
private static function receive_photo($importer, $data) {
|
|
// There doesn't seem to be a reason for this function, since the photo data is transmitted in the status message as well
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Processes poll participations - unssupported
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param object $data The message object
|
|
*
|
|
* @return bool always true
|
|
*/
|
|
private static function receive_poll_participation($importer, $data) {
|
|
// We don't support polls by now
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Processes incoming profile updates
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param object $data The message object
|
|
*
|
|
* @return bool Success
|
|
*/
|
|
private static function receive_profile($importer, $data) {
|
|
$author = strtolower(notags(unxmlify($data->author)));
|
|
|
|
$contact = self::contact_by_handle($importer["uid"], $author);
|
|
if (!$contact)
|
|
return false;
|
|
|
|
$name = unxmlify($data->first_name).((strlen($data->last_name)) ? " ".unxmlify($data->last_name) : "");
|
|
$image_url = unxmlify($data->image_url);
|
|
$birthday = unxmlify($data->birthday);
|
|
$location = diaspora2bb(unxmlify($data->location));
|
|
$about = diaspora2bb(unxmlify($data->bio));
|
|
$gender = unxmlify($data->gender);
|
|
$searchable = (unxmlify($data->searchable) == "true");
|
|
$nsfw = (unxmlify($data->nsfw) == "true");
|
|
$tags = unxmlify($data->tag_string);
|
|
|
|
$tags = explode("#", $tags);
|
|
|
|
$keywords = array();
|
|
foreach ($tags as $tag) {
|
|
$tag = trim(strtolower($tag));
|
|
if ($tag != "")
|
|
$keywords[] = $tag;
|
|
}
|
|
|
|
$keywords = implode(", ", $keywords);
|
|
|
|
$handle_parts = explode("@", $author);
|
|
$nick = $handle_parts[0];
|
|
|
|
if($name === "")
|
|
$name = $handle_parts[0];
|
|
|
|
if( preg_match("|^https?://|", $image_url) === 0)
|
|
$image_url = "http://".$handle_parts[1].$image_url;
|
|
|
|
update_contact_avatar($image_url, $importer["uid"], $contact["id"]);
|
|
|
|
// Generic birthday. We don't know the timezone. The year is irrelevant.
|
|
|
|
$birthday = str_replace("1000", "1901", $birthday);
|
|
|
|
if ($birthday != "")
|
|
$birthday = datetime_convert("UTC", "UTC", $birthday, "Y-m-d");
|
|
|
|
// this is to prevent multiple birthday notifications in a single year
|
|
// if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
|
|
|
|
if(substr($birthday,5) === substr($contact["bd"],5))
|
|
$birthday = $contact["bd"];
|
|
|
|
$r = q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `addr` = '%s', `name-date` = '%s', `bd` = '%s',
|
|
`location` = '%s', `about` = '%s', `keywords` = '%s', `gender` = '%s' WHERE `id` = %d AND `uid` = %d",
|
|
dbesc($name),
|
|
dbesc($nick),
|
|
dbesc($author),
|
|
dbesc(datetime_convert()),
|
|
dbesc($birthday),
|
|
dbesc($location),
|
|
dbesc($about),
|
|
dbesc($keywords),
|
|
dbesc($gender),
|
|
intval($contact["id"]),
|
|
intval($importer["uid"])
|
|
);
|
|
|
|
if ($searchable) {
|
|
poco_check($contact["url"], $name, NETWORK_DIASPORA, $image_url, $about, $location, $gender, $keywords, "",
|
|
datetime_convert(), 2, $contact["id"], $importer["uid"]);
|
|
}
|
|
|
|
$gcontact = array("url" => $contact["url"], "network" => NETWORK_DIASPORA, "generation" => 2,
|
|
"photo" => $image_url, "name" => $name, "location" => $location,
|
|
"about" => $about, "birthday" => $birthday, "gender" => $gender,
|
|
"addr" => $author, "nick" => $nick, "keywords" => $keywords,
|
|
"hide" => !$searchable, "nsfw" => $nsfw);
|
|
|
|
update_gcontact($gcontact);
|
|
|
|
logger("Profile of contact ".$contact["id"]." stored for user ".$importer["uid"], LOGGER_DEBUG);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Processes incoming friend requests
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param array $contact The contact that send the request
|
|
*/
|
|
private static function receive_request_make_friend($importer, $contact) {
|
|
|
|
$a = get_app();
|
|
|
|
if($contact["rel"] == CONTACT_IS_FOLLOWER && in_array($importer["page-flags"], array(PAGE_FREELOVE))) {
|
|
q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d",
|
|
intval(CONTACT_IS_FRIEND),
|
|
intval($contact["id"]),
|
|
intval($importer["uid"])
|
|
);
|
|
}
|
|
// send notification
|
|
|
|
$r = q("SELECT `hide-friends` FROM `profile` WHERE `uid` = %d AND `is-default` = 1 LIMIT 1",
|
|
intval($importer["uid"])
|
|
);
|
|
|
|
if($r && !$r[0]["hide-friends"] && !$contact["hidden"] && intval(get_pconfig($importer["uid"], "system", "post_newfriend"))) {
|
|
|
|
$self = q("SELECT * FROM `contact` WHERE `self` AND `uid` = %d LIMIT 1",
|
|
intval($importer["uid"])
|
|
);
|
|
|
|
// they are not CONTACT_IS_FOLLOWER anymore but that's what we have in the array
|
|
|
|
if($self && $contact["rel"] == CONTACT_IS_FOLLOWER) {
|
|
|
|
$arr = array();
|
|
$arr["uri"] = $arr["parent-uri"] = item_new_uri($a->get_hostname(), $importer["uid"]);
|
|
$arr["uid"] = $importer["uid"];
|
|
$arr["contact-id"] = $self[0]["id"];
|
|
$arr["wall"] = 1;
|
|
$arr["type"] = 'wall';
|
|
$arr["gravity"] = 0;
|
|
$arr["origin"] = 1;
|
|
$arr["author-name"] = $arr["owner-name"] = $self[0]["name"];
|
|
$arr["author-link"] = $arr["owner-link"] = $self[0]["url"];
|
|
$arr["author-avatar"] = $arr["owner-avatar"] = $self[0]["thumb"];
|
|
$arr["verb"] = ACTIVITY_FRIEND;
|
|
$arr["object-type"] = ACTIVITY_OBJ_PERSON;
|
|
|
|
$A = "[url=".$self[0]["url"]."]".$self[0]["name"]."[/url]";
|
|
$B = "[url=".$contact["url"]."]".$contact["name"]."[/url]";
|
|
$BPhoto = "[url=".$contact["url"]."][img]".$contact["thumb"]."[/img][/url]";
|
|
$arr["body"] = sprintf(t("%1$s is now friends with %2$s"), $A, $B)."\n\n\n".$Bphoto;
|
|
|
|
$arr["object"] = self::construct_new_friend_object($contact);
|
|
|
|
$arr["last-child"] = 1;
|
|
|
|
$arr["allow_cid"] = $user[0]["allow_cid"];
|
|
$arr["allow_gid"] = $user[0]["allow_gid"];
|
|
$arr["deny_cid"] = $user[0]["deny_cid"];
|
|
$arr["deny_gid"] = $user[0]["deny_gid"];
|
|
|
|
$i = item_store($arr);
|
|
if($i)
|
|
proc_run(PRIORITY_HIGH, "include/notifier.php", "activity", $i);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Creates a XML object for a "new friend" message
|
|
*
|
|
* @param array $contact Array of the contact
|
|
*
|
|
* @return string The XML
|
|
*/
|
|
private static function construct_new_friend_object($contact) {
|
|
$objtype = ACTIVITY_OBJ_PERSON;
|
|
$link = '<link rel="alternate" type="text/html" href="'.$contact["url"].'" />'."\n".
|
|
'<link rel="photo" type="image/jpeg" href="'.$contact["thumb"].'" />'."\n";
|
|
|
|
$xmldata = array("object" => array("type" => $objtype,
|
|
"title" => $contact["name"],
|
|
"id" => $contact["url"]."/".$contact["name"],
|
|
"link" => $link));
|
|
|
|
return xml::from_array($xmldata, $xml, true);
|
|
}
|
|
|
|
/**
|
|
* @brief Processes incoming sharing notification
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param object $data The message object
|
|
*
|
|
* @return bool Success
|
|
*/
|
|
private static function receive_contact_request($importer, $data) {
|
|
$author = unxmlify($data->author);
|
|
$recipient = unxmlify($data->recipient);
|
|
|
|
if (!$author || !$recipient) {
|
|
return false;
|
|
}
|
|
|
|
// the current protocol version doesn't know these fields
|
|
// That means that we will assume their existance
|
|
if (isset($data->following)) {
|
|
$following = (unxmlify($data->following) == "true");
|
|
} else {
|
|
$following = true;
|
|
}
|
|
|
|
if (isset($data->sharing)) {
|
|
$sharing = (unxmlify($data->sharing) == "true");
|
|
} else {
|
|
$sharing = true;
|
|
}
|
|
|
|
$contact = self::contact_by_handle($importer["uid"],$author);
|
|
|
|
// perhaps we were already sharing with this person. Now they're sharing with us.
|
|
// That makes us friends.
|
|
if ($contact) {
|
|
if ($following AND $sharing) {
|
|
logger("Author ".$author." (Contact ".$contact["id"].") wants to have a bidirectional conection.", LOGGER_DEBUG);
|
|
self::receive_request_make_friend($importer, $contact);
|
|
|
|
// refetch the contact array
|
|
$contact = self::contact_by_handle($importer["uid"],$author);
|
|
|
|
// If we are now friends, we are sending a share message.
|
|
// Normally we needn't to do so, but the first message could have been vanished.
|
|
if (in_array($contact["rel"], array(CONTACT_IS_FRIEND, CONTACT_IS_FOLLOWER))) {
|
|
$u = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($importer["uid"]));
|
|
if ($u) {
|
|
logger("Sending share message to author ".$author." - Contact: ".$contact["id"]." - User: ".$importer["uid"], LOGGER_DEBUG);
|
|
$ret = self::send_share($u[0], $contact);
|
|
}
|
|
}
|
|
return true;
|
|
} else { /// @todo Handle all possible variations of adding and retracting of permissions
|
|
logger("Author ".$author." (Contact ".$contact["id"].") wants to change the relationship: Following: ".$following." - sharing: ".$sharing. "(By now unsupported)", LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!$following AND $sharing AND in_array($importer["page-flags"], array(PAGE_SOAPBOX, PAGE_NORMAL))) {
|
|
logger("Author ".$author." wants to share with us - but doesn't want to listen. Request is ignored.", LOGGER_DEBUG);
|
|
return false;
|
|
} elseif (!$following AND !$sharing) {
|
|
logger("Author ".$author." doesn't want anything - and we don't know the author. Request is ignored.", LOGGER_DEBUG);
|
|
return false;
|
|
} elseif (!$following AND $sharing) {
|
|
logger("Author ".$author." wants to share with us.", LOGGER_DEBUG);
|
|
} elseif ($following AND $sharing) {
|
|
logger("Author ".$author." wants to have a bidirectional conection.", LOGGER_DEBUG);
|
|
} elseif ($following AND !$sharing) {
|
|
logger("Author ".$author." wants to listen to us.", LOGGER_DEBUG);
|
|
}
|
|
|
|
$ret = self::person_by_handle($author);
|
|
|
|
if (!$ret || ($ret["network"] != NETWORK_DIASPORA)) {
|
|
logger("Cannot resolve diaspora handle ".$author." for ".$recipient);
|
|
return false;
|
|
}
|
|
|
|
$batch = (($ret["batch"]) ? $ret["batch"] : implode("/", array_slice(explode("/", $ret["url"]), 0, 3))."/receive/public");
|
|
|
|
$r = q("INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`nurl`,`batch`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
|
|
VALUES (%d, '%s', '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s','%s',%d,%d)",
|
|
intval($importer["uid"]),
|
|
dbesc($ret["network"]),
|
|
dbesc($ret["addr"]),
|
|
datetime_convert(),
|
|
dbesc($ret["url"]),
|
|
dbesc(normalise_link($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
|
|
|
|
$contact_record = self::contact_by_handle($importer["uid"],$author);
|
|
|
|
if (!$contact_record) {
|
|
logger("unable to locate newly created contact record.");
|
|
return;
|
|
}
|
|
|
|
logger("Author ".$author." was added as contact number ".$contact_record["id"].".", LOGGER_DEBUG);
|
|
|
|
$def_gid = get_default_group($importer['uid'], $ret["network"]);
|
|
|
|
if(intval($def_gid))
|
|
group_add_member($importer["uid"], "", $contact_record["id"], $def_gid);
|
|
|
|
update_contact_avatar($ret["photo"], $importer['uid'], $contact_record["id"], true);
|
|
|
|
if($importer["page-flags"] == PAGE_NORMAL) {
|
|
|
|
logger("Sending intra message for author ".$author.".", LOGGER_DEBUG);
|
|
|
|
$hash = random_string().(string)time(); // Generate a confirm_key
|
|
|
|
$ret = q("INSERT INTO `intro` (`uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime`)
|
|
VALUES (%d, %d, %d, %d, '%s', '%s', '%s')",
|
|
intval($importer["uid"]),
|
|
intval($contact_record["id"]),
|
|
0,
|
|
0,
|
|
dbesc(t("Sharing notification from Diaspora network")),
|
|
dbesc($hash),
|
|
dbesc(datetime_convert())
|
|
);
|
|
} else {
|
|
|
|
// automatic friend approval
|
|
|
|
logger("Does an automatic friend approval for author ".$author.".", LOGGER_DEBUG);
|
|
|
|
update_contact_avatar($contact_record["photo"],$importer["uid"],$contact_record["id"]);
|
|
|
|
// technically they are sharing with us (CONTACT_IS_SHARING),
|
|
// but if our page-type is PAGE_COMMUNITY or PAGE_SOAPBOX
|
|
// we are going to change the relationship and make them a follower.
|
|
|
|
if (($importer["page-flags"] == PAGE_FREELOVE) AND $sharing AND $following)
|
|
$new_relation = CONTACT_IS_FRIEND;
|
|
elseif (($importer["page-flags"] == PAGE_FREELOVE) AND $sharing)
|
|
$new_relation = CONTACT_IS_SHARING;
|
|
else
|
|
$new_relation = CONTACT_IS_FOLLOWER;
|
|
|
|
$r = q("UPDATE `contact` SET `rel` = %d,
|
|
`name-date` = '%s',
|
|
`uri-date` = '%s',
|
|
`blocked` = 0,
|
|
`pending` = 0,
|
|
`writable` = 1
|
|
WHERE `id` = %d
|
|
",
|
|
intval($new_relation),
|
|
dbesc(datetime_convert()),
|
|
dbesc(datetime_convert()),
|
|
intval($contact_record["id"])
|
|
);
|
|
|
|
$u = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($importer["uid"]));
|
|
if($u) {
|
|
logger("Sending share message (Relation: ".$new_relation.") to author ".$author." - Contact: ".$contact_record["id"]." - User: ".$importer["uid"], LOGGER_DEBUG);
|
|
$ret = self::send_share($u[0], $contact_record);
|
|
|
|
// Send the profile data, maybe it weren't transmitted before
|
|
self::send_profile($importer["uid"], array($contact_record));
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Fetches a message with a given guid
|
|
*
|
|
* @param string $guid message guid
|
|
* @param string $orig_author handle of the original post
|
|
* @param string $author handle of the sharer
|
|
*
|
|
* @return array The fetched item
|
|
*/
|
|
private static function original_item($guid, $orig_author, $author) {
|
|
|
|
// Do we already have this item?
|
|
$r = q("SELECT `body`, `tag`, `app`, `created`, `object-type`, `uri`, `guid`,
|
|
`author-name`, `author-link`, `author-avatar`
|
|
FROM `item` WHERE `guid` = '%s' AND `visible` AND NOT `deleted` AND `body` != '' LIMIT 1",
|
|
dbesc($guid));
|
|
|
|
if (dbm::is_result($r)) {
|
|
logger("reshared message ".$guid." already exists on system.");
|
|
|
|
// Maybe it is already a reshared item?
|
|
// Then refetch the content, if it is a reshare from a reshare.
|
|
// If it is a reshared post from another network then reformat to avoid display problems with two share elements
|
|
if (self::is_reshare($r[0]["body"], true)) {
|
|
$r = array();
|
|
} elseif (self::is_reshare($r[0]["body"], false)) {
|
|
$r[0]["body"] = diaspora2bb(bb2diaspora($r[0]["body"]));
|
|
|
|
$r[0]["body"] = self::replace_people_guid($r[0]["body"], $r[0]["author-link"]);
|
|
|
|
// Add OEmbed and other information to the body
|
|
$r[0]["body"] = add_page_info_to_body($r[0]["body"], false, true);
|
|
|
|
return $r[0];
|
|
} else {
|
|
return $r[0];
|
|
}
|
|
}
|
|
|
|
if (!dbm::is_result($r)) {
|
|
$server = "https://".substr($orig_author, strpos($orig_author, "@") + 1);
|
|
logger("1st try: reshared message ".$guid." will be fetched via SSL from the server ".$server);
|
|
$item_id = self::store_by_guid($guid, $server);
|
|
|
|
if (!$item_id) {
|
|
$server = "http://".substr($orig_author, strpos($orig_author, "@") + 1);
|
|
logger("2nd try: reshared message ".$guid." will be fetched without SLL from the server ".$server);
|
|
$item_id = self::store_by_guid($guid, $server);
|
|
}
|
|
|
|
if ($item_id) {
|
|
$r = q("SELECT `body`, `tag`, `app`, `created`, `object-type`, `uri`, `guid`,
|
|
`author-name`, `author-link`, `author-avatar`
|
|
FROM `item` WHERE `id` = %d AND `visible` AND NOT `deleted` AND `body` != '' LIMIT 1",
|
|
intval($item_id));
|
|
|
|
if (dbm::is_result($r)) {
|
|
// If it is a reshared post from another network then reformat to avoid display problems with two share elements
|
|
if (self::is_reshare($r[0]["body"], false)) {
|
|
$r[0]["body"] = diaspora2bb(bb2diaspora($r[0]["body"]));
|
|
$r[0]["body"] = self::replace_people_guid($r[0]["body"], $r[0]["author-link"]);
|
|
}
|
|
|
|
return $r[0];
|
|
}
|
|
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @brief Processes a reshare message
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param object $data The message object
|
|
* @param string $xml The original XML of the message
|
|
*
|
|
* @return int the message id
|
|
*/
|
|
private static function receive_reshare($importer, $data, $xml) {
|
|
$root_author = notags(unxmlify($data->root_author));
|
|
$root_guid = notags(unxmlify($data->root_guid));
|
|
$guid = notags(unxmlify($data->guid));
|
|
$author = notags(unxmlify($data->author));
|
|
$public = notags(unxmlify($data->public));
|
|
$created_at = datetime_convert("UTC", "UTC", notags(unxmlify($data->created_at)));
|
|
|
|
$contact = self::allowed_contact_by_handle($importer, $author, false);
|
|
if (!$contact) {
|
|
return false;
|
|
}
|
|
|
|
$message_id = self::message_exists($importer["uid"], $guid);
|
|
if ($message_id) {
|
|
return $message_id;
|
|
}
|
|
|
|
$original_item = self::original_item($root_guid, $root_author, $author);
|
|
if (!$original_item) {
|
|
return false;
|
|
}
|
|
|
|
$orig_url = App::get_baseurl()."/display/".$original_item["guid"];
|
|
|
|
$datarray = array();
|
|
|
|
$datarray["uid"] = $importer["uid"];
|
|
$datarray["contact-id"] = $contact["id"];
|
|
$datarray["network"] = NETWORK_DIASPORA;
|
|
|
|
$datarray["author-name"] = $contact["name"];
|
|
$datarray["author-link"] = $contact["url"];
|
|
$datarray["author-avatar"] = ((x($contact,"thumb")) ? $contact["thumb"] : $contact["photo"]);
|
|
|
|
$datarray["owner-name"] = $datarray["author-name"];
|
|
$datarray["owner-link"] = $datarray["author-link"];
|
|
$datarray["owner-avatar"] = $datarray["author-avatar"];
|
|
|
|
$datarray["guid"] = $guid;
|
|
$datarray["uri"] = $datarray["parent-uri"] = self::get_uri_from_guid($author, $guid);
|
|
|
|
$datarray["verb"] = ACTIVITY_POST;
|
|
$datarray["gravity"] = GRAVITY_PARENT;
|
|
|
|
$datarray["object"] = $xml;
|
|
|
|
$prefix = share_header($original_item["author-name"], $original_item["author-link"], $original_item["author-avatar"],
|
|
$original_item["guid"], $original_item["created"], $orig_url);
|
|
$datarray["body"] = $prefix.$original_item["body"]."[/share]";
|
|
|
|
$datarray["tag"] = $original_item["tag"];
|
|
$datarray["app"] = $original_item["app"];
|
|
|
|
$datarray["plink"] = self::plink($author, $guid);
|
|
$datarray["private"] = (($public == "false") ? 1 : 0);
|
|
$datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
|
|
|
|
$datarray["object-type"] = $original_item["object-type"];
|
|
|
|
self::fetch_guid($datarray);
|
|
$message_id = item_store($datarray);
|
|
|
|
if ($message_id) {
|
|
logger("Stored reshare ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
|
|
}
|
|
|
|
return $message_id;
|
|
}
|
|
|
|
/**
|
|
* @brief Processes retractions
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param array $contact The contact of the item owner
|
|
* @param object $data The message object
|
|
*
|
|
* @return bool success
|
|
*/
|
|
private static function item_retraction($importer, $contact, $data) {
|
|
$target_type = notags(unxmlify($data->target_type));
|
|
$target_guid = notags(unxmlify($data->target_guid));
|
|
$author = notags(unxmlify($data->author));
|
|
|
|
$person = self::person_by_handle($author);
|
|
if (!is_array($person)) {
|
|
logger("unable to find author detail for ".$author);
|
|
return false;
|
|
}
|
|
|
|
$r = q("SELECT `id`, `parent`, `parent-uri`, `author-link` FROM `item` WHERE `guid` = '%s' AND `uid` = %d AND NOT `file` LIKE '%%[%%' LIMIT 1",
|
|
dbesc($target_guid),
|
|
intval($importer["uid"])
|
|
);
|
|
if (!$r) {
|
|
return false;
|
|
}
|
|
|
|
// Check if the sender is the thread owner
|
|
$p = q("SELECT `id`, `author-link`, `origin` FROM `item` WHERE `id` = %d",
|
|
intval($r[0]["parent"]));
|
|
|
|
// Only delete it if the parent author really fits
|
|
if (!link_compare($p[0]["author-link"], $contact["url"]) AND !link_compare($r[0]["author-link"], $contact["url"])) {
|
|
logger("Thread author ".$p[0]["author-link"]." and item author ".$r[0]["author-link"]." don't fit to expected contact ".$contact["url"], LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
|
|
// Currently we don't have a central deletion function that we could use in this case. The function "item_drop" doesn't work for that case
|
|
q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = '' WHERE `id` = %d",
|
|
dbesc(datetime_convert()),
|
|
dbesc(datetime_convert()),
|
|
intval($r[0]["id"])
|
|
);
|
|
delete_thread($r[0]["id"], $r[0]["parent-uri"]);
|
|
|
|
logger("Deleted target ".$target_guid." (".$r[0]["id"].") from user ".$importer["uid"]." parent: ".$p[0]["id"], LOGGER_DEBUG);
|
|
|
|
// Now check if the retraction needs to be relayed by us
|
|
if ($p[0]["origin"]) {
|
|
// notify others
|
|
proc_run(PRIORITY_HIGH, "include/notifier.php", "drop", $r[0]["id"]);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Receives retraction messages
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param string $sender The sender of the message
|
|
* @param object $data The message object
|
|
*
|
|
* @return bool Success
|
|
*/
|
|
private static function receive_retraction($importer, $sender, $data) {
|
|
$target_type = notags(unxmlify($data->target_type));
|
|
|
|
$contact = self::contact_by_handle($importer["uid"], $sender);
|
|
if (!$contact) {
|
|
logger("cannot find contact for sender: ".$sender." and user ".$importer["uid"]);
|
|
return false;
|
|
}
|
|
|
|
logger("Got retraction for ".$target_type.", sender ".$sender." and user ".$importer["uid"], LOGGER_DEBUG);
|
|
|
|
switch ($target_type) {
|
|
case "Comment":
|
|
case "Like":
|
|
case "Post": // "Post" will be supported in a future version
|
|
case "Reshare":
|
|
case "StatusMessage":
|
|
return self::item_retraction($importer, $contact, $data);;
|
|
|
|
case "Contact":
|
|
case "Person":
|
|
/// @todo What should we do with an "unshare"?
|
|
// Removing the contact isn't correct since we still can read the public items
|
|
contact_remove($contact["id"]);
|
|
return true;
|
|
|
|
default:
|
|
logger("Unknown target type ".$target_type);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Receives status messages
|
|
*
|
|
* @param array $importer Array of the importer user
|
|
* @param object $data The message object
|
|
* @param string $xml The original XML of the message
|
|
*
|
|
* @return int The message id of the newly created item
|
|
*/
|
|
private static function receive_status_message($importer, $data, $xml) {
|
|
$raw_message = unxmlify($data->raw_message);
|
|
$guid = notags(unxmlify($data->guid));
|
|
$author = notags(unxmlify($data->author));
|
|
$public = notags(unxmlify($data->public));
|
|
$created_at = datetime_convert("UTC", "UTC", notags(unxmlify($data->created_at)));
|
|
$provider_display_name = notags(unxmlify($data->provider_display_name));
|
|
|
|
/// @todo enable support for polls
|
|
//if ($data->poll) {
|
|
// foreach ($data->poll AS $poll)
|
|
// print_r($poll);
|
|
// die("poll!\n");
|
|
//}
|
|
$contact = self::allowed_contact_by_handle($importer, $author, false);
|
|
if (!$contact) {
|
|
return false;
|
|
}
|
|
|
|
$message_id = self::message_exists($importer["uid"], $guid);
|
|
if ($message_id) {
|
|
return $message_id;
|
|
}
|
|
|
|
$address = array();
|
|
if ($data->location) {
|
|
foreach ($data->location->children() AS $fieldname => $data) {
|
|
$address[$fieldname] = notags(unxmlify($data));
|
|
}
|
|
}
|
|
|
|
$body = diaspora2bb($raw_message);
|
|
|
|
$datarray = array();
|
|
|
|
// Attach embedded pictures to the body
|
|
if ($data->photo) {
|
|
foreach ($data->photo AS $photo) {
|
|
$body = "[img]".unxmlify($photo->remote_photo_path).
|
|
unxmlify($photo->remote_photo_name)."[/img]\n".$body;
|
|
}
|
|
|
|
$datarray["object-type"] = ACTIVITY_OBJ_IMAGE;
|
|
} else {
|
|
$datarray["object-type"] = ACTIVITY_OBJ_NOTE;
|
|
|
|
// Add OEmbed and other information to the body
|
|
if (!self::is_redmatrix($contact["url"])) {
|
|
$body = add_page_info_to_body($body, false, true);
|
|
}
|
|
}
|
|
|
|
$datarray["uid"] = $importer["uid"];
|
|
$datarray["contact-id"] = $contact["id"];
|
|
$datarray["network"] = NETWORK_DIASPORA;
|
|
|
|
$datarray["author-name"] = $contact["name"];
|
|
$datarray["author-link"] = $contact["url"];
|
|
$datarray["author-avatar"] = ((x($contact,"thumb")) ? $contact["thumb"] : $contact["photo"]);
|
|
|
|
$datarray["owner-name"] = $datarray["author-name"];
|
|
$datarray["owner-link"] = $datarray["author-link"];
|
|
$datarray["owner-avatar"] = $datarray["author-avatar"];
|
|
|
|
$datarray["guid"] = $guid;
|
|
$datarray["uri"] = $datarray["parent-uri"] = self::get_uri_from_guid($author, $guid);
|
|
|
|
$datarray["verb"] = ACTIVITY_POST;
|
|
$datarray["gravity"] = GRAVITY_PARENT;
|
|
|
|
$datarray["object"] = $xml;
|
|
|
|
$datarray["body"] = self::replace_people_guid($body, $contact["url"]);
|
|
|
|
if ($provider_display_name != "") {
|
|
$datarray["app"] = $provider_display_name;
|
|
}
|
|
|
|
$datarray["plink"] = self::plink($author, $guid);
|
|
$datarray["private"] = (($public == "false") ? 1 : 0);
|
|
$datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
|
|
|
|
if (isset($address["address"])) {
|
|
$datarray["location"] = $address["address"];
|
|
}
|
|
|
|
if (isset($address["lat"]) AND isset($address["lng"])) {
|
|
$datarray["coord"] = $address["lat"]." ".$address["lng"];
|
|
}
|
|
|
|
self::fetch_guid($datarray);
|
|
$message_id = item_store($datarray);
|
|
|
|
if ($message_id) {
|
|
logger("Stored item ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
|
|
}
|
|
|
|
return $message_id;
|
|
}
|
|
|
|
/* ************************************************************************************** *
|
|
* Here are all the functions that are needed to transmit data with the Diaspora protocol *
|
|
* ************************************************************************************** */
|
|
|
|
/**
|
|
* @brief returnes the handle of a contact
|
|
*
|
|
* @param array $me contact array
|
|
*
|
|
* @return string the handle in the format user@domain.tld
|
|
*/
|
|
private static function my_handle($contact) {
|
|
if ($contact["addr"] != "") {
|
|
return $contact["addr"];
|
|
}
|
|
|
|
// Normally we should have a filled "addr" field - but in the past this wasn't the case
|
|
// So - just in case - we build the the address here.
|
|
if ($contact["nickname"] != "") {
|
|
$nick = $contact["nickname"];
|
|
} else {
|
|
$nick = $contact["nick"];
|
|
}
|
|
|
|
return $nick."@".substr(App::get_baseurl(), strpos(App::get_baseurl(),"://") + 3);
|
|
}
|
|
|
|
/**
|
|
* @brief Creates the envelope for the "fetch" endpoint
|
|
*
|
|
* @param string $msg The message that is to be transmitted
|
|
* @param array $user The record of the sender
|
|
*
|
|
* @return string The envelope
|
|
*/
|
|
|
|
public static function build_magic_envelope($msg, $user) {
|
|
|
|
$b64url_data = base64url_encode($msg);
|
|
$data = str_replace(array("\n", "\r", " ", "\t"), array("", "", "", ""), $b64url_data);
|
|
|
|
$key_id = base64url_encode(self::my_handle($user));
|
|
$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, $user["prvkey"]);
|
|
$sig = base64url_encode($signature);
|
|
|
|
$xmldata = array("me:env" => array("me:data" => $data,
|
|
"@attributes" => array("type" => $type),
|
|
"me:encoding" => $encoding,
|
|
"me:alg" => $alg,
|
|
"me:sig" => $sig,
|
|
"@attributes2" => array("key_id" => $key_id)));
|
|
|
|
$namespaces = array("me" => "http://salmon-protocol.org/ns/magic-env");
|
|
|
|
return xml::from_array($xmldata, $xml, false, $namespaces);
|
|
}
|
|
|
|
/**
|
|
* @brief Creates the envelope for a public message
|
|
*
|
|
* @param string $msg The message that is to be transmitted
|
|
* @param array $user The record of the sender
|
|
* @param array $contact Target of the communication
|
|
* @param string $prvkey The private key of the sender
|
|
* @param string $pubkey The public key of the receiver
|
|
*
|
|
* @return string The envelope
|
|
*/
|
|
private static function build_public_message($msg, $user, $contact, $prvkey, $pubkey) {
|
|
|
|
logger("Message: ".$msg, LOGGER_DATA);
|
|
|
|
$handle = self::my_handle($user);
|
|
|
|
$b64url_data = base64url_encode($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);
|
|
|
|
$xmldata = array("diaspora" => array("header" => array("author_id" => $handle),
|
|
"me:env" => array("me:encoding" => $encoding,
|
|
"me:alg" => $alg,
|
|
"me:data" => $data,
|
|
"@attributes" => array("type" => $type),
|
|
"me:sig" => $sig)));
|
|
|
|
$namespaces = array("" => "https://joindiaspora.com/protocol",
|
|
"me" => "http://salmon-protocol.org/ns/magic-env");
|
|
|
|
$magic_env = xml::from_array($xmldata, $xml, false, $namespaces);
|
|
|
|
logger("magic_env: ".$magic_env, LOGGER_DATA);
|
|
return $magic_env;
|
|
}
|
|
|
|
/**
|
|
* @brief Creates the envelope for a private message
|
|
*
|
|
* @param string $msg The message that is to be transmitted
|
|
* @param array $user The record of the sender
|
|
* @param array $contact Target of the communication
|
|
* @param string $prvkey The private key of the sender
|
|
* @param string $pubkey The public key of the receiver
|
|
*
|
|
* @return string The envelope
|
|
*/
|
|
private static function build_private_message($msg, $user, $contact, $prvkey, $pubkey) {
|
|
|
|
logger("Message: ".$msg, LOGGER_DATA);
|
|
|
|
// without a public key nothing will work
|
|
|
|
if (!$pubkey) {
|
|
logger("pubkey missing: contact id: ".$contact["id"]);
|
|
return false;
|
|
}
|
|
|
|
$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);
|
|
|
|
$handle = self::my_handle($user);
|
|
|
|
$padded_data = pkcs5_pad($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);
|
|
|
|
$xmldata = array("decrypted_header" => array("iv" => $b_inner_iv,
|
|
"aes_key" => $b_inner_aes_key,
|
|
"author_id" => $handle));
|
|
|
|
$decrypted_header = xml::from_array($xmldata, $xml, true);
|
|
$decrypted_header = pkcs5_pad($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);
|
|
|
|
$xmldata = array("diaspora" => array("encrypted_header" => $cipher_json,
|
|
"me:env" => array("me:encoding" => $encoding,
|
|
"me:alg" => $alg,
|
|
"me:data" => $data,
|
|
"@attributes" => array("type" => $type),
|
|
"me:sig" => $sig)));
|
|
|
|
$namespaces = array("" => "https://joindiaspora.com/protocol",
|
|
"me" => "http://salmon-protocol.org/ns/magic-env");
|
|
|
|
$magic_env = xml::from_array($xmldata, $xml, false, $namespaces);
|
|
|
|
logger("magic_env: ".$magic_env, LOGGER_DATA);
|
|
return $magic_env;
|
|
}
|
|
|
|
/**
|
|
* @brief Create the envelope for a message
|
|
*
|
|
* @param string $msg The message that is to be transmitted
|
|
* @param array $user The record of the sender
|
|
* @param array $contact Target of the communication
|
|
* @param string $prvkey The private key of the sender
|
|
* @param string $pubkey The public key of the receiver
|
|
* @param bool $public Is the message public?
|
|
*
|
|
* @return string The message that will be transmitted to other servers
|
|
*/
|
|
private static function build_message($msg, $user, $contact, $prvkey, $pubkey, $public = false) {
|
|
|
|
if ($public)
|
|
$magic_env = self::build_public_message($msg,$user,$contact,$prvkey,$pubkey);
|
|
else
|
|
$magic_env = self::build_private_message($msg,$user,$contact,$prvkey,$pubkey);
|
|
|
|
// The data that will be transmitted is double encoded via "urlencode", strange ...
|
|
$slap = "xml=".urlencode(urlencode($magic_env));
|
|
return $slap;
|
|
}
|
|
|
|
/**
|
|
* @brief Creates a signature for a message
|
|
*
|
|
* @param array $owner the array of the owner of the message
|
|
* @param array $message The message that is to be signed
|
|
*
|
|
* @return string The signature
|
|
*/
|
|
private static function signature($owner, $message) {
|
|
$sigmsg = $message;
|
|
unset($sigmsg["author_signature"]);
|
|
unset($sigmsg["parent_author_signature"]);
|
|
|
|
$signed_text = implode(";", $sigmsg);
|
|
|
|
return base64_encode(rsa_sign($signed_text, $owner["uprvkey"], "sha256"));
|
|
}
|
|
|
|
/**
|
|
* @brief Transmit a message to a target server
|
|
*
|
|
* @param array $owner the array of the item owner
|
|
* @param array $contact Target of the communication
|
|
* @param string $slap The message that is to be transmitted
|
|
* @param bool $public_batch Is it a public post?
|
|
* @param bool $queue_run Is the transmission called from the queue?
|
|
* @param string $guid message guid
|
|
*
|
|
* @return int Result of the transmission
|
|
*/
|
|
public static function transmit($owner, $contact, $slap, $public_batch, $queue_run=false, $guid = "") {
|
|
|
|
$a = get_app();
|
|
|
|
$enabled = intval(get_config("system", "diaspora_enabled"));
|
|
if(!$enabled)
|
|
return 200;
|
|
|
|
$logid = random_string(4);
|
|
$dest_url = (($public_batch) ? $contact["batch"] : $contact["notify"]);
|
|
if (!$dest_url) {
|
|
logger("no url for contact: ".$contact["id"]." batch mode =".$public_batch);
|
|
return 0;
|
|
}
|
|
|
|
logger("transmit: ".$logid."-".$guid." ".$dest_url);
|
|
|
|
if (!$queue_run && was_recently_delayed($contact["id"])) {
|
|
$return_code = 0;
|
|
} else {
|
|
if (!intval(get_config("system", "diaspora_test"))) {
|
|
post_url($dest_url."/", $slap);
|
|
$return_code = $a->get_curl_code();
|
|
} else {
|
|
logger("test_mode");
|
|
return 200;
|
|
}
|
|
}
|
|
|
|
logger("transmit: ".$logid."-".$guid." returns: ".$return_code);
|
|
|
|
if (!$return_code || (($return_code == 503) && (stristr($a->get_curl_headers(), "retry-after")))) {
|
|
logger("queue message");
|
|
|
|
$r = q("SELECT `id` FROM `queue` WHERE `cid` = %d AND `network` = '%s' AND `content` = '%s' AND `batch` = %d LIMIT 1",
|
|
intval($contact["id"]),
|
|
dbesc(NETWORK_DIASPORA),
|
|
dbesc($slap),
|
|
intval($public_batch)
|
|
);
|
|
if ($r) {
|
|
logger("add_to_queue ignored - identical item already in queue");
|
|
} else {
|
|
// queue message for redelivery
|
|
add_to_queue($contact["id"], NETWORK_DIASPORA, $slap, $public_batch);
|
|
|
|
// The message could not be delivered. We mark the contact as "dead"
|
|
mark_for_death($contact);
|
|
}
|
|
} elseif (($return_code >= 200) AND ($return_code <= 299)) {
|
|
// We successfully delivered a message, the contact is alive
|
|
unmark_for_death($contact);
|
|
}
|
|
|
|
return(($return_code) ? $return_code : (-1));
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Build the post xml
|
|
*
|
|
* @param string $type The message type
|
|
* @param array $message The message data
|
|
*
|
|
* @return string The post XML
|
|
*/
|
|
public static function build_post_xml($type, $message) {
|
|
|
|
$data = array("XML" => array("post" => array($type => $message)));
|
|
return xml::from_array($data, $xml);
|
|
}
|
|
|
|
/**
|
|
* @brief Builds and transmit messages
|
|
*
|
|
* @param array $owner the array of the item owner
|
|
* @param array $contact Target of the communication
|
|
* @param string $type The message type
|
|
* @param array $message The message data
|
|
* @param bool $public_batch Is it a public post?
|
|
* @param string $guid message guid
|
|
* @param bool $spool Should the transmission be spooled or transmitted?
|
|
*
|
|
* @return int Result of the transmission
|
|
*/
|
|
private static function build_and_transmit($owner, $contact, $type, $message, $public_batch = false, $guid = "", $spool = false) {
|
|
|
|
$msg = self::build_post_xml($type, $message);
|
|
|
|
logger('message: '.$msg, LOGGER_DATA);
|
|
logger('send guid '.$guid, LOGGER_DEBUG);
|
|
|
|
// Fallback if the private key wasn't transmitted in the expected field
|
|
if ($owner['uprvkey'] == "")
|
|
$owner['uprvkey'] = $owner['prvkey'];
|
|
|
|
$slap = self::build_message($msg, $owner, $contact, $owner['uprvkey'], $contact['pubkey'], $public_batch);
|
|
|
|
if ($spool) {
|
|
add_to_queue($contact['id'], NETWORK_DIASPORA, $slap, $public_batch);
|
|
return true;
|
|
} else
|
|
$return_code = self::transmit($owner, $contact, $slap, $public_batch, false, $guid);
|
|
|
|
logger("guid: ".$item["guid"]." result ".$return_code, LOGGER_DEBUG);
|
|
|
|
return $return_code;
|
|
}
|
|
|
|
/**
|
|
* @brief Sends a "share" message
|
|
*
|
|
* @param array $owner the array of the item owner
|
|
* @param array $contact Target of the communication
|
|
*
|
|
* @return int The result of the transmission
|
|
*/
|
|
public static function send_share($owner,$contact) {
|
|
|
|
$message = array("sender_handle" => self::my_handle($owner),
|
|
"recipient_handle" => $contact["addr"]);
|
|
|
|
logger("Send share ".print_r($message, true), LOGGER_DEBUG);
|
|
|
|
return self::build_and_transmit($owner, $contact, "request", $message);
|
|
}
|
|
|
|
/**
|
|
* @brief sends an "unshare"
|
|
*
|
|
* @param array $owner the array of the item owner
|
|
* @param array $contact Target of the communication
|
|
*
|
|
* @return int The result of the transmission
|
|
*/
|
|
public static function send_unshare($owner,$contact) {
|
|
|
|
$message = array("post_guid" => $owner["guid"],
|
|
"diaspora_handle" => self::my_handle($owner),
|
|
"type" => "Person");
|
|
|
|
logger("Send unshare ".print_r($message, true), LOGGER_DEBUG);
|
|
|
|
return self::build_and_transmit($owner, $contact, "retraction", $message);
|
|
}
|
|
|
|
/**
|
|
* @brief Checks a message body if it is a reshare
|
|
*
|
|
* @param string $body The message body that is to be check
|
|
* @param bool $complete Should it be a complete check or a simple check?
|
|
*
|
|
* @return array|bool Reshare details or "false" if no reshare
|
|
*/
|
|
public static function is_reshare($body, $complete = true) {
|
|
$body = trim($body);
|
|
|
|
// Skip if it isn't a pure repeated messages
|
|
// Does it start with a share?
|
|
if ((strpos($body, "[share") > 0) AND $complete)
|
|
return(false);
|
|
|
|
// Does it end with a share?
|
|
if (strlen($body) > (strrpos($body, "[/share]") + 8))
|
|
return(false);
|
|
|
|
$attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
|
|
// Skip if there is no shared message in there
|
|
if ($body == $attributes)
|
|
return(false);
|
|
|
|
// If we don't do the complete check we quit here
|
|
if (!$complete)
|
|
return true;
|
|
|
|
$guid = "";
|
|
preg_match("/guid='(.*?)'/ism", $attributes, $matches);
|
|
if ($matches[1] != "")
|
|
$guid = $matches[1];
|
|
|
|
preg_match('/guid="(.*?)"/ism', $attributes, $matches);
|
|
if ($matches[1] != "")
|
|
$guid = $matches[1];
|
|
|
|
if ($guid != "") {
|
|
$r = q("SELECT `contact-id` FROM `item` WHERE `guid` = '%s' AND `network` IN ('%s', '%s') LIMIT 1",
|
|
dbesc($guid), NETWORK_DFRN, NETWORK_DIASPORA);
|
|
if ($r) {
|
|
$ret= array();
|
|
$ret["root_handle"] = self::handle_from_contact($r[0]["contact-id"]);
|
|
$ret["root_guid"] = $guid;
|
|
return($ret);
|
|
}
|
|
}
|
|
|
|
$profile = "";
|
|
preg_match("/profile='(.*?)'/ism", $attributes, $matches);
|
|
if ($matches[1] != "")
|
|
$profile = $matches[1];
|
|
|
|
preg_match('/profile="(.*?)"/ism', $attributes, $matches);
|
|
if ($matches[1] != "")
|
|
$profile = $matches[1];
|
|
|
|
$ret= array();
|
|
|
|
$ret["root_handle"] = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
|
|
if (($ret["root_handle"] == $profile) OR ($ret["root_handle"] == ""))
|
|
return(false);
|
|
|
|
$link = "";
|
|
preg_match("/link='(.*?)'/ism", $attributes, $matches);
|
|
if ($matches[1] != "")
|
|
$link = $matches[1];
|
|
|
|
preg_match('/link="(.*?)"/ism', $attributes, $matches);
|
|
if ($matches[1] != "")
|
|
$link = $matches[1];
|
|
|
|
$ret["root_guid"] = preg_replace("=https?://(.*)/posts/(.*)=ism", "$2", $link);
|
|
if (($ret["root_guid"] == $link) OR (trim($ret["root_guid"]) == ""))
|
|
return(false);
|
|
|
|
return($ret);
|
|
}
|
|
|
|
/**
|
|
* @brief Create an event array
|
|
*
|
|
* @param integer $event_id The id of the event
|
|
*
|
|
* @return array with event data
|
|
*/
|
|
private static function build_event($event_id) {
|
|
|
|
$r = q("SELECT `guid`, `uid`, `start`, `finish`, `nofinish`, `summary`, `desc`, `location`, `adjust` FROM `event` WHERE `id` = %d", intval($event_id));
|
|
if (!dbm::is_result($r)) {
|
|
return array();
|
|
}
|
|
|
|
$event = $r[0];
|
|
|
|
$eventdata = array();
|
|
|
|
$r = q("SELECT `timezone` FROM `user` WHERE `uid` = %d", intval($event['uid']));
|
|
if (!dbm::is_result($r)) {
|
|
return array();
|
|
}
|
|
|
|
$user = $r[0];
|
|
|
|
$r = q("SELECT `addr`, `nick` FROM `contact` WHERE `uid` = %d AND `self`", intval($event['uid']));
|
|
if (!dbm::is_result($r)) {
|
|
return array();
|
|
}
|
|
|
|
$owner = $r[0];
|
|
|
|
$eventdata['author'] = self::my_handle($owner);
|
|
|
|
if ($event['guid']) {
|
|
$eventdata['guid'] = $event['guid'];
|
|
}
|
|
|
|
$mask = 'Y-m-d\TH:i:s\Z';
|
|
|
|
/// @todo - establish "all day" events in Friendica
|
|
$eventdata["all_day"] = "false";
|
|
|
|
if (!$event['adjust']) {
|
|
$eventdata['timezone'] = $user['timezone'];
|
|
|
|
if ($eventdata['timezone'] == "") {
|
|
$eventdata['timezone'] = 'UTC';
|
|
}
|
|
}
|
|
|
|
if ($event['start']) {
|
|
$eventdata['start'] = datetime_convert($eventdata['timezone'], "UTC", $event['start'], $mask);
|
|
}
|
|
if ($event['finish'] AND !$event['nofinish']) {
|
|
$eventdata['end'] = datetime_convert($eventdata['timezone'], "UTC", $event['finish'], $mask);
|
|
}
|
|
if ($event['summary']) {
|
|
$eventdata['summary'] = html_entity_decode(bb2diaspora($event['summary']));
|
|
}
|
|
if ($event['desc']) {
|
|
$eventdata['description'] = html_entity_decode(bb2diaspora($event['desc']));
|
|
}
|
|
if ($event['location']) {
|
|
$location = array();
|
|
$location["address"] = html_entity_decode(bb2diaspora($event['location']));
|
|
$location["lat"] = 0;
|
|
$location["lng"] = 0;
|
|
$eventdata['location'] = $location;
|
|
}
|
|
|
|
return $eventdata;
|
|
}
|
|
|
|
/**
|
|
* @brief Create a post (status message or reshare)
|
|
*
|
|
* @param array $item The item that will be exported
|
|
* @param array $owner the array of the item owner
|
|
*
|
|
* @return array
|
|
* 'type' -> Message type ("status_message" or "reshare")
|
|
* 'message' -> Array of XML elements of the status
|
|
*/
|
|
public static function build_status($item, $owner) {
|
|
|
|
$cachekey = "diaspora:build_status:".$item['guid'];
|
|
|
|
$result = Cache::get($cachekey);
|
|
if (!is_null($result)) {
|
|
return $result;
|
|
}
|
|
|
|
$myaddr = self::my_handle($owner);
|
|
|
|
$public = (($item["private"]) ? "false" : "true");
|
|
|
|
$created = datetime_convert("UTC", "UTC", $item["created"], 'Y-m-d\TH:i:s\Z');
|
|
|
|
// Detect a share element and do a reshare
|
|
if (!$item['private'] AND ($ret = self::is_reshare($item["body"]))) {
|
|
$message = array("root_diaspora_id" => $ret["root_handle"],
|
|
"root_guid" => $ret["root_guid"],
|
|
"guid" => $item["guid"],
|
|
"diaspora_handle" => $myaddr,
|
|
"public" => $public,
|
|
"created_at" => $created,
|
|
"provider_display_name" => $item["app"]);
|
|
|
|
$type = "reshare";
|
|
} else {
|
|
$title = $item["title"];
|
|
$body = $item["body"];
|
|
|
|
// convert to markdown
|
|
$body = html_entity_decode(bb2diaspora($body));
|
|
|
|
// Adding the title
|
|
if(strlen($title))
|
|
$body = "## ".html_entity_decode($title)."\n\n".$body;
|
|
|
|
if ($item["attach"]) {
|
|
$cnt = preg_match_all('/href=\"(.*?)\"(.*?)title=\"(.*?)\"/ism', $item["attach"], $matches, PREG_SET_ORDER);
|
|
if(cnt) {
|
|
$body .= "\n".t("Attachments:")."\n";
|
|
foreach($matches as $mtch)
|
|
$body .= "[".$mtch[3]."](".$mtch[1].")\n";
|
|
}
|
|
}
|
|
|
|
$location = array();
|
|
|
|
if ($item["location"] != "")
|
|
$location["address"] = $item["location"];
|
|
|
|
if ($item["coord"] != "") {
|
|
$coord = explode(" ", $item["coord"]);
|
|
$location["lat"] = $coord[0];
|
|
$location["lng"] = $coord[1];
|
|
}
|
|
|
|
$message = array("raw_message" => $body,
|
|
"location" => $location,
|
|
"guid" => $item["guid"],
|
|
"diaspora_handle" => $myaddr,
|
|
"public" => $public,
|
|
"created_at" => $created,
|
|
"provider_display_name" => $item["app"]);
|
|
|
|
// Diaspora rejects messages when they contain a location without "lat" or "lng"
|
|
if (!isset($location["lat"]) OR !isset($location["lng"])) {
|
|
unset($message["location"]);
|
|
}
|
|
|
|
if ($item['event-id'] > 0) {
|
|
$event = self::build_event($item['event-id']);
|
|
if (count($event)) {
|
|
$message['event'] = $event;
|
|
|
|
/// @todo Once Diaspora supports it, we will remove the body
|
|
// $message['raw_message'] = '';
|
|
}
|
|
}
|
|
|
|
$type = "status_message";
|
|
}
|
|
|
|
$msg = array("type" => $type, "message" => $message);
|
|
|
|
Cache::set($cachekey, $msg, CACHE_QUARTER_HOUR);
|
|
|
|
return $msg;
|
|
}
|
|
|
|
/**
|
|
* @brief Sends a post
|
|
*
|
|
* @param array $item The item that will be exported
|
|
* @param array $owner the array of the item owner
|
|
* @param array $contact Target of the communication
|
|
* @param bool $public_batch Is it a public post?
|
|
*
|
|
* @return int The result of the transmission
|
|
*/
|
|
public static function send_status($item, $owner, $contact, $public_batch = false) {
|
|
|
|
$status = self::build_status($item, $owner);
|
|
|
|
return self::build_and_transmit($owner, $contact, $status["type"], $status["message"], $public_batch, $item["guid"]);
|
|
}
|
|
|
|
/**
|
|
* @brief Creates a "like" object
|
|
*
|
|
* @param array $item The item that will be exported
|
|
* @param array $owner the array of the item owner
|
|
*
|
|
* @return array The data for a "like"
|
|
*/
|
|
private static function construct_like($item, $owner) {
|
|
|
|
$p = q("SELECT `guid`, `uri`, `parent-uri` FROM `item` WHERE `uri` = '%s' LIMIT 1",
|
|
dbesc($item["thr-parent"]));
|
|
if (!dbm::is_result($p))
|
|
return false;
|
|
|
|
$parent = $p[0];
|
|
|
|
$target_type = ($parent["uri"] === $parent["parent-uri"] ? "Post" : "Comment");
|
|
if ($item['verb'] === ACTIVITY_LIKE) {
|
|
$positive = "true";
|
|
} elseif ($item['verb'] === ACTIVITY_DISLIKE) {
|
|
$positive = "false";
|
|
}
|
|
|
|
return(array("positive" => $positive,
|
|
"guid" => $item["guid"],
|
|
"target_type" => $target_type,
|
|
"parent_guid" => $parent["guid"],
|
|
"author_signature" => "",
|
|
"diaspora_handle" => self::my_handle($owner)));
|
|
}
|
|
|
|
/**
|
|
* @brief Creates an "EventParticipation" object
|
|
*
|
|
* @param array $item The item that will be exported
|
|
* @param array $owner the array of the item owner
|
|
*
|
|
* @return array The data for an "EventParticipation"
|
|
*/
|
|
private static function construct_attend($item, $owner) {
|
|
|
|
$p = q("SELECT `guid`, `uri`, `parent-uri` FROM `item` WHERE `uri` = '%s' LIMIT 1",
|
|
dbesc($item["thr-parent"]));
|
|
if (!dbm::is_result($p))
|
|
return false;
|
|
|
|
$parent = $p[0];
|
|
|
|
switch ($item['verb']) {
|
|
case ACTIVITY_ATTEND:
|
|
$attend_answer = 'accepted';
|
|
break;
|
|
case ACTIVITY_ATTENDNO:
|
|
$attend_answer = 'declined';
|
|
break;
|
|
case ACTIVITY_ATTENDMAYBE:
|
|
$attend_answer = 'tentative';
|
|
break;
|
|
default:
|
|
logger('Unknown verb '.$item['verb'].' in item '.$item['guid']);
|
|
return false;
|
|
}
|
|
|
|
return(array("author" => self::my_handle($owner),
|
|
"guid" => $item["guid"],
|
|
"parent_guid" => $parent["guid"],
|
|
"status" => $attend_answer,
|
|
"author_signature" => ""));
|
|
}
|
|
|
|
/**
|
|
* @brief Creates the object for a comment
|
|
*
|
|
* @param array $item The item that will be exported
|
|
* @param array $owner the array of the item owner
|
|
*
|
|
* @return array The data for a comment
|
|
*/
|
|
private static function construct_comment($item, $owner) {
|
|
|
|
$cachekey = "diaspora:construct_comment:".$item['guid'];
|
|
|
|
$result = Cache::get($cachekey);
|
|
if (!is_null($result)) {
|
|
return $result;
|
|
}
|
|
|
|
$p = q("SELECT `guid` FROM `item` WHERE `parent` = %d AND `id` = %d LIMIT 1",
|
|
intval($item["parent"]),
|
|
intval($item["parent"])
|
|
);
|
|
|
|
if (!dbm::is_result($p))
|
|
return false;
|
|
|
|
$parent = $p[0];
|
|
|
|
$text = html_entity_decode(bb2diaspora($item["body"]));
|
|
$created = datetime_convert("UTC", "UTC", $item["created"], 'Y-m-d\TH:i:s\Z');
|
|
|
|
$comment = array("guid" => $item["guid"],
|
|
"parent_guid" => $parent["guid"],
|
|
"author_signature" => "",
|
|
"text" => $text,
|
|
/// @todo Currently disabled until Diaspora supports it: "created_at" => $created,
|
|
"diaspora_handle" => self::my_handle($owner));
|
|
|
|
// Send the thread parent guid only if it is a threaded comment
|
|
if ($item['thr-parent'] != $item['parent-uri']) {
|
|
$comment['thread_parent_guid'] = self::get_guid_from_uri($item['thr-parent'], $item['uid']);
|
|
}
|
|
|
|
Cache::set($cachekey, $comment, CACHE_QUARTER_HOUR);
|
|
|
|
return($comment);
|
|
}
|
|
|
|
/**
|
|
* @brief Send a like or a comment
|
|
*
|
|
* @param array $item The item that will be exported
|
|
* @param array $owner the array of the item owner
|
|
* @param array $contact Target of the communication
|
|
* @param bool $public_batch Is it a public post?
|
|
*
|
|
* @return int The result of the transmission
|
|
*/
|
|
public static function send_followup($item,$owner,$contact,$public_batch = false) {
|
|
|
|
if (in_array($item['verb'], array(ACTIVITY_ATTEND, ACTIVITY_ATTENDNO, ACTIVITY_ATTENDMAYBE))) {
|
|
$message = self::construct_attend($item, $owner);
|
|
$type = "event_participation";
|
|
} elseif (in_array($item["verb"], array(ACTIVITY_LIKE, ACTIVITY_DISLIKE))) {
|
|
$message = self::construct_like($item, $owner);
|
|
$type = "like";
|
|
} else {
|
|
$message = self::construct_comment($item, $owner);
|
|
$type = "comment";
|
|
}
|
|
|
|
if (!$message)
|
|
return false;
|
|
|
|
$message["author_signature"] = self::signature($owner, $message);
|
|
|
|
return self::build_and_transmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
|
|
}
|
|
|
|
/**
|
|
* @brief Creates a message from a signature record entry
|
|
*
|
|
* @param array $item The item that will be exported
|
|
* @param array $signature The entry of the "sign" record
|
|
*
|
|
* @return string The message
|
|
*/
|
|
private static function message_from_signature($item, $signature) {
|
|
|
|
// Split the signed text
|
|
$signed_parts = explode(";", $signature['signed_text']);
|
|
|
|
if ($item["deleted"])
|
|
$message = array("parent_author_signature" => "",
|
|
"target_guid" => $signed_parts[0],
|
|
"target_type" => $signed_parts[1],
|
|
"sender_handle" => $signature['signer'],
|
|
"target_author_signature" => $signature['signature']);
|
|
elseif ($item['verb'] === ACTIVITY_LIKE)
|
|
$message = array("positive" => $signed_parts[0],
|
|
"guid" => $signed_parts[1],
|
|
"target_type" => $signed_parts[2],
|
|
"parent_guid" => $signed_parts[3],
|
|
"parent_author_signature" => "",
|
|
"author_signature" => $signature['signature'],
|
|
"diaspora_handle" => $signed_parts[4]);
|
|
else {
|
|
// Remove the comment guid
|
|
$guid = array_shift($signed_parts);
|
|
|
|
// Remove the parent guid
|
|
$parent_guid = array_shift($signed_parts);
|
|
|
|
// Remove the handle
|
|
$handle = array_pop($signed_parts);
|
|
|
|
// Glue the parts together
|
|
$text = implode(";", $signed_parts);
|
|
|
|
$message = array("guid" => $guid,
|
|
"parent_guid" => $parent_guid,
|
|
"parent_author_signature" => "",
|
|
"author_signature" => $signature['signature'],
|
|
"text" => implode(";", $signed_parts),
|
|
"diaspora_handle" => $handle);
|
|
}
|
|
return $message;
|
|
}
|
|
|
|
/**
|
|
* @brief Relays messages (like, comment, retraction) to other servers if we are the thread owner
|
|
*
|
|
* @param array $item The item that will be exported
|
|
* @param array $owner the array of the item owner
|
|
* @param array $contact Target of the communication
|
|
* @param bool $public_batch Is it a public post?
|
|
*
|
|
* @return int The result of the transmission
|
|
*/
|
|
public static function send_relay($item, $owner, $contact, $public_batch = false) {
|
|
|
|
if ($item["deleted"])
|
|
return self::send_retraction($item, $owner, $contact, $public_batch, true);
|
|
elseif ($item['verb'] === ACTIVITY_LIKE)
|
|
$type = "like";
|
|
else
|
|
$type = "comment";
|
|
|
|
logger("Got relayable data ".$type." for item ".$item["guid"]." (".$item["id"].")", LOGGER_DEBUG);
|
|
|
|
// fetch the original signature
|
|
|
|
$r = q("SELECT `signed_text`, `signature`, `signer` FROM `sign` WHERE `iid` = %d LIMIT 1",
|
|
intval($item["id"]));
|
|
|
|
if (!$r) {
|
|
logger("Couldn't fetch signatur for item ".$item["guid"]." (".$item["id"].")", LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
|
|
$signature = $r[0];
|
|
|
|
// Old way - is used by the internal Friendica functions
|
|
/// @todo Change all signatur storing functions to the new format
|
|
if ($signature['signed_text'] AND $signature['signature'] AND $signature['signer'])
|
|
$message = self::message_from_signature($item, $signature);
|
|
else {// New way
|
|
$msg = json_decode($signature['signed_text'], true);
|
|
|
|
$message = array();
|
|
if (is_array($msg)) {
|
|
foreach ($msg AS $field => $data) {
|
|
if (!$item["deleted"]) {
|
|
if ($field == "author")
|
|
$field = "diaspora_handle";
|
|
if ($field == "parent_type")
|
|
$field = "target_type";
|
|
}
|
|
|
|
$message[$field] = $data;
|
|
}
|
|
} else
|
|
logger("Signature text for item ".$item["guid"]." (".$item["id"].") couldn't be extracted: ".$signature['signed_text'], LOGGER_DEBUG);
|
|
}
|
|
|
|
$message["parent_author_signature"] = self::signature($owner, $message);
|
|
|
|
logger("Relayed data ".print_r($message, true), LOGGER_DEBUG);
|
|
|
|
return self::build_and_transmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
|
|
}
|
|
|
|
/**
|
|
* @brief Sends a retraction (deletion) of a message, like or comment
|
|
*
|
|
* @param array $item The item that will be exported
|
|
* @param array $owner the array of the item owner
|
|
* @param array $contact Target of the communication
|
|
* @param bool $public_batch Is it a public post?
|
|
* @param bool $relay Is the retraction transmitted from a relay?
|
|
*
|
|
* @return int The result of the transmission
|
|
*/
|
|
public static function send_retraction($item, $owner, $contact, $public_batch = false, $relay = false) {
|
|
|
|
$itemaddr = self::handle_from_contact($item["contact-id"], $item["gcontact-id"]);
|
|
|
|
// Check whether the retraction is for a top-level post or whether it's a relayable
|
|
if ($item["uri"] !== $item["parent-uri"]) {
|
|
$msg_type = "relayable_retraction";
|
|
$target_type = (($item["verb"] === ACTIVITY_LIKE) ? "Like" : "Comment");
|
|
} else {
|
|
$msg_type = "signed_retraction";
|
|
$target_type = "StatusMessage";
|
|
}
|
|
|
|
if ($relay AND ($item["uri"] !== $item["parent-uri"]))
|
|
$signature = "parent_author_signature";
|
|
else
|
|
$signature = "target_author_signature";
|
|
|
|
$signed_text = $item["guid"].";".$target_type;
|
|
|
|
$message = array("target_guid" => $item['guid'],
|
|
"target_type" => $target_type,
|
|
"sender_handle" => $itemaddr,
|
|
$signature => base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256')));
|
|
|
|
logger("Got message ".print_r($message, true), LOGGER_DEBUG);
|
|
|
|
return self::build_and_transmit($owner, $contact, $msg_type, $message, $public_batch, $item["guid"]);
|
|
}
|
|
|
|
/**
|
|
* @brief Sends a mail
|
|
*
|
|
* @param array $item The item that will be exported
|
|
* @param array $owner The owner
|
|
* @param array $contact Target of the communication
|
|
*
|
|
* @return int The result of the transmission
|
|
*/
|
|
public static function send_mail($item, $owner, $contact) {
|
|
|
|
$myaddr = self::my_handle($owner);
|
|
|
|
$r = q("SELECT * FROM `conv` WHERE `id` = %d AND `uid` = %d LIMIT 1",
|
|
intval($item["convid"]),
|
|
intval($item["uid"])
|
|
);
|
|
|
|
if (!dbm::is_result($r)) {
|
|
logger("conversation not found.");
|
|
return;
|
|
}
|
|
$cnv = $r[0];
|
|
|
|
$conv = array(
|
|
"guid" => $cnv["guid"],
|
|
"subject" => $cnv["subject"],
|
|
"created_at" => datetime_convert("UTC", "UTC", $cnv['created'], 'Y-m-d\TH:i:s\Z'),
|
|
"diaspora_handle" => $cnv["creator"],
|
|
"participant_handles" => $cnv["recips"]
|
|
);
|
|
|
|
$body = bb2diaspora($item["body"]);
|
|
$created = datetime_convert("UTC", "UTC", $item["created"], 'Y-m-d\TH:i:s\Z');
|
|
|
|
$signed_text = $item["guid"].";".$cnv["guid"].";".$body.";".$created.";".$myaddr.";".$cnv['guid'];
|
|
$sig = base64_encode(rsa_sign($signed_text, $owner["uprvkey"], "sha256"));
|
|
|
|
$msg = array(
|
|
"guid" => $item["guid"],
|
|
"parent_guid" => $cnv["guid"],
|
|
"parent_author_signature" => $sig,
|
|
"author_signature" => $sig,
|
|
"text" => $body,
|
|
"created_at" => $created,
|
|
"diaspora_handle" => $myaddr,
|
|
"conversation_guid" => $cnv["guid"]
|
|
);
|
|
|
|
if ($item["reply"]) {
|
|
$message = $msg;
|
|
$type = "message";
|
|
} else {
|
|
$message = array("guid" => $cnv["guid"],
|
|
"subject" => $cnv["subject"],
|
|
"created_at" => datetime_convert("UTC", "UTC", $cnv['created'], 'Y-m-d\TH:i:s\Z'),
|
|
"message" => $msg,
|
|
"diaspora_handle" => $cnv["creator"],
|
|
"participant_handles" => $cnv["recips"]);
|
|
|
|
$type = "conversation";
|
|
}
|
|
|
|
return self::build_and_transmit($owner, $contact, $type, $message, false, $item["guid"]);
|
|
}
|
|
|
|
/**
|
|
* @brief Sends profile data
|
|
*
|
|
* @param int $uid The user id
|
|
*/
|
|
public static function send_profile($uid, $recips = false) {
|
|
|
|
if (!$uid)
|
|
return;
|
|
|
|
if (!$recips)
|
|
$recips = q("SELECT `id`,`name`,`network`,`pubkey`,`notify` FROM `contact` WHERE `network` = '%s'
|
|
AND `uid` = %d AND `rel` != %d",
|
|
dbesc(NETWORK_DIASPORA),
|
|
intval($uid),
|
|
intval(CONTACT_IS_SHARING)
|
|
);
|
|
if (!$recips)
|
|
return;
|
|
|
|
$r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.*, `user`.`prvkey` AS `uprvkey`, `contact`.`addr`
|
|
FROM `profile`
|
|
INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
|
|
INNER JOIN `contact` ON `profile`.`uid` = `contact`.`uid`
|
|
WHERE `user`.`uid` = %d AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
|
|
intval($uid)
|
|
);
|
|
|
|
if (!$r)
|
|
return;
|
|
|
|
$profile = $r[0];
|
|
|
|
$handle = $profile["addr"];
|
|
$first = ((strpos($profile['name'],' ')
|
|
? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']));
|
|
$last = (($first === $profile['name']) ? '' : trim(substr($profile['name'], strlen($first))));
|
|
$large = App::get_baseurl().'/photo/custom/300/'.$profile['uid'].'.jpg';
|
|
$medium = App::get_baseurl().'/photo/custom/100/'.$profile['uid'].'.jpg';
|
|
$small = App::get_baseurl().'/photo/custom/50/' .$profile['uid'].'.jpg';
|
|
$searchable = (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false');
|
|
|
|
if ($searchable === 'true') {
|
|
$dob = '1000-00-00';
|
|
|
|
if (($profile['dob']) && ($profile['dob'] != '0000-00-00'))
|
|
$dob = ((intval($profile['dob'])) ? intval($profile['dob']) : '1000') .'-'. datetime_convert('UTC','UTC',$profile['dob'],'m-d');
|
|
|
|
$about = $profile['about'];
|
|
$about = strip_tags(bbcode($about));
|
|
|
|
$location = formatted_location($profile);
|
|
$tags = '';
|
|
if ($profile['pub_keywords']) {
|
|
$kw = str_replace(',',' ',$profile['pub_keywords']);
|
|
$kw = str_replace(' ',' ',$kw);
|
|
$arr = explode(' ',$profile['pub_keywords']);
|
|
if (count($arr)) {
|
|
for($x = 0; $x < 5; $x ++) {
|
|
if (trim($arr[$x]))
|
|
$tags .= '#'. trim($arr[$x]) .' ';
|
|
}
|
|
}
|
|
}
|
|
$tags = trim($tags);
|
|
}
|
|
|
|
$message = array("diaspora_handle" => $handle,
|
|
"first_name" => $first,
|
|
"last_name" => $last,
|
|
"image_url" => $large,
|
|
"image_url_medium" => $medium,
|
|
"image_url_small" => $small,
|
|
"birthday" => $dob,
|
|
"gender" => $profile['gender'],
|
|
"bio" => $about,
|
|
"location" => $location,
|
|
"searchable" => $searchable,
|
|
"tag_string" => $tags);
|
|
|
|
foreach($recips as $recip) {
|
|
logger("Send updated profile data for user ".$uid." to contact ".$recip["id"], LOGGER_DEBUG);
|
|
self::build_and_transmit($profile, $recip, "profile", $message, false, "", true);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Stores the signature for likes that are created on our system
|
|
*
|
|
* @param array $contact The contact array of the "like"
|
|
* @param int $post_id The post id of the "like"
|
|
*
|
|
* @return bool Success
|
|
*/
|
|
public static function store_like_signature($contact, $post_id) {
|
|
|
|
// Is the contact the owner? Then fetch the private key
|
|
if (!$contact['self'] OR ($contact['uid'] == 0)) {
|
|
logger("No owner post, so not storing signature", LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
|
|
$r = q("SELECT `prvkey` FROM `user` WHERE `uid` = %d LIMIT 1", intval($contact['uid']));
|
|
if(!$r)
|
|
return false;
|
|
|
|
$contact["uprvkey"] = $r[0]['prvkey'];
|
|
|
|
$r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1", intval($post_id));
|
|
if (!$r)
|
|
return false;
|
|
|
|
if (!in_array($r[0]["verb"], array(ACTIVITY_LIKE, ACTIVITY_DISLIKE)))
|
|
return false;
|
|
|
|
$message = self::construct_like($r[0], $contact);
|
|
$message["author_signature"] = self::signature($contact, $message);
|
|
|
|
// We now store the signature more flexible to dynamically support new fields.
|
|
// This will break Diaspora compatibility with Friendica versions prior to 3.5.
|
|
q("INSERT INTO `sign` (`iid`,`signed_text`) VALUES (%d,'%s')",
|
|
intval($message_id),
|
|
dbesc(json_encode($message))
|
|
);
|
|
|
|
logger('Stored diaspora like signature');
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Stores the signature for comments that are created on our system
|
|
*
|
|
* @param array $item The item array of the comment
|
|
* @param array $contact The contact array of the item owner
|
|
* @param string $uprvkey The private key of the sender
|
|
* @param int $message_id The message id of the comment
|
|
*
|
|
* @return bool Success
|
|
*/
|
|
public static function store_comment_signature($item, $contact, $uprvkey, $message_id) {
|
|
|
|
if ($uprvkey == "") {
|
|
logger('No private key, so not storing comment signature', LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
|
|
$contact["uprvkey"] = $uprvkey;
|
|
|
|
$message = self::construct_comment($item, $contact);
|
|
$message["author_signature"] = self::signature($contact, $message);
|
|
|
|
// We now store the signature more flexible to dynamically support new fields.
|
|
// This will break Diaspora compatibility with Friendica versions prior to 3.5.
|
|
q("INSERT INTO `sign` (`iid`,`signed_text`) VALUES (%d,'%s')",
|
|
intval($message_id),
|
|
dbesc(json_encode($message))
|
|
);
|
|
|
|
logger('Stored diaspora comment signature');
|
|
return true;
|
|
}
|
|
}
|
|
?>
|