mirror of
https://github.com/friendica/friendica
synced 2024-12-23 16:00:16 +00:00
Receiving should be complete, sending partially works
This commit is contained in:
Michael Vogel
parent
2a4ebaa438
commit
71227b5d0d
2 changed files with 538 additions and 40 deletions
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@ -11,44 +11,8 @@ 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/api.php");
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/**
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* @brief This class contain functions to work with XML data
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*
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*/
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class xml {
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function from_array($array, &$xml) {
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if (!is_object($xml)) {
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foreach($array as $key => $value) {
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$root = new SimpleXMLElement("<".$key."/>");
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array_to_xml($value, $root);
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$dom = dom_import_simplexml($root)->ownerDocument;
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$dom->formatOutput = true;
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return $dom->saveXML();
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}
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}
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foreach($array as $key => $value) {
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if (!is_array($value) AND !is_numeric($key))
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$xml->addChild($key, $value);
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elseif (is_array($value))
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array_to_xml($value, $xml->addChild($key));
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}
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}
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function copy(&$source, &$target, $elementname) {
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if (count($source->children()) == 0)
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$target->addChild($elementname, $source);
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else {
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$child = $target->addChild($elementname);
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foreach ($source->children() AS $childfield => $childentry)
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self::copy($childentry, $child, $childfield);
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}
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}
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}
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require_once("include/xml.php");
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require_once("include/datetime.php");
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/**
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* @brief This class contain functions to create and send Diaspora XML files
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@ -56,6 +20,50 @@ class xml {
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*/
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class diaspora {
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public static function fetch_relay() {
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$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($server);
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$batch = $server."/receive/public";
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$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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$addr = "relay@".str_replace("http://", "", normalise_link($server));
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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 $relay;
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}
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/**
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* @brief Dispatches public messages and find the fitting receivers
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*
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@ -1180,6 +1188,9 @@ EOT;
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}
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private function receive_request_make_friend($importer, $contact) {
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$a = get_app();
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if($contact["rel"] == CONTACT_IS_FOLLOWER && in_array($importer["page-flags"], array(PAGE_FREELOVE))) {
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q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d",
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intval(CONTACT_IS_FRIEND),
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@ -1204,7 +1215,7 @@ EOT;
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if($self && $contact["rel"] == CONTACT_IS_FOLLOWER) {
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$arr = array();
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$arr["uri"] = $arr["parent-uri"] = item_new_uri(App::get_hostname(), $importer["uid"]);
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$arr["uri"] = $arr["parent-uri"] = item_new_uri($a->get_hostname(), $importer["uid"]);
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$arr["uid"] = $importer["uid"];
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$arr["contact-id"] = $self[0]["id"];
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$arr["wall"] = 1;
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@ -1369,7 +1380,7 @@ EOT;
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// Maybe it is already a reshared item?
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// Then refetch the content, since there can be many side effects with reshared posts from other networks or reshares from reshares
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if (api_share_as_retweet($r[0]))
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if (self::is_reshare($r[0]["body"]))
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$r = array();
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else
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return $r[0];
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@ -1639,5 +1650,453 @@ EOT;
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return $message_id;
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}
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/*******************************************************************************************
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* Here come all the functions that are needed to transmit data with the Diaspora protocol *
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*******************************************************************************************/
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private function get_my_handle($me) {
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if ($contact["addr"] != "")
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return $contact["addr"];
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// Normally we should have a filled "addr" field - but in the past this wasn't the case
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// So - just in case - we build the the address here.
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return $me["nickname"]."@".substr(App::get_baseurl(), strpos(App::get_baseurl(),"://") + 3);
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}
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function build_public_message($msg, $user, $contact, $prvkey, $pubkey) {
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logger("Message: ".$msg, LOGGER_DATA);
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$handle = self::get_my_handle($user);
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$b64url_data = base64url_encode($msg);
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$data = str_replace(array("\n", "\r", " ", "\t"), array("", "", "", ""), $b64url_data);
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$type = "application/xml";
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$encoding = "base64url";
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$alg = "RSA-SHA256";
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$signable_data = $data.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
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$signature = rsa_sign($signable_data,$prvkey);
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$sig = base64url_encode($signature);
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$magic_env = <<< EOT
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<?xml version='1.0' encoding='UTF-8'?>
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<diaspora xmlns="https://joindiaspora.com/protocol" xmlns:me="http://salmon-protocol.org/ns/magic-env" >
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<header>
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<author_id>$handle</author_id>
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</header>
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<me:env>
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<me:encoding>base64url</me:encoding>
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<me:alg>RSA-SHA256</me:alg>
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<me:data type="application/xml">$data</me:data>
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<me:sig>$sig</me:sig>
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</me:env>
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</diaspora>
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EOT;
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logger("magic_env: ".$magic_env, LOGGER_DATA);
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return $magic_env;
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}
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private function build_private_message($msg, $user, $contact, $prvkey, $pubkey) {
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logger("Message: ".$msg, LOGGER_DATA);
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// without a public key nothing will work
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if (!$pubkey) {
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logger("pubkey missing: contact id: ".$contact["id"]);
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return false;
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}
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$inner_aes_key = random_string(32);
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$b_inner_aes_key = base64_encode($inner_aes_key);
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$inner_iv = random_string(16);
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$b_inner_iv = base64_encode($inner_iv);
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$outer_aes_key = random_string(32);
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$b_outer_aes_key = base64_encode($outer_aes_key);
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$outer_iv = random_string(16);
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$b_outer_iv = base64_encode($outer_iv);
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$handle = self::get_my_handle($user);
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$padded_data = pkcs5_pad($msg,16);
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$inner_encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $padded_data, MCRYPT_MODE_CBC, $inner_iv);
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$b64_data = base64_encode($inner_encrypted);
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$b64url_data = base64url_encode($b64_data);
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$data = str_replace(array("\n", "\r", " ", "\t"), array("", "", "", ""), $b64url_data);
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$type = "application/xml";
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$encoding = "base64url";
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$alg = "RSA-SHA256";
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$signable_data = $data.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
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$signature = rsa_sign($signable_data,$prvkey);
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$sig = base64url_encode($signature);
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$decrypted_header = <<< EOT
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<decrypted_header>
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<iv>$b_inner_iv</iv>
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<aes_key>$b_inner_aes_key</aes_key>
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<author_id>$handle</author_id>
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</decrypted_header>
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EOT;
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$decrypted_header = pkcs5_pad($decrypted_header,16);
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$ciphertext = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $outer_aes_key, $decrypted_header, MCRYPT_MODE_CBC, $outer_iv);
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$outer_json = json_encode(array("iv" => $b_outer_iv, "key" => $b_outer_aes_key));
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$encrypted_outer_key_bundle = "";
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openssl_public_encrypt($outer_json, $encrypted_outer_key_bundle, $pubkey);
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$b64_encrypted_outer_key_bundle = base64_encode($encrypted_outer_key_bundle);
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logger("outer_bundle: ".$b64_encrypted_outer_key_bundle." key: ".$pubkey, LOGGER_DATA);
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$encrypted_header_json_object = json_encode(array("aes_key" => base64_encode($encrypted_outer_key_bundle),
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"ciphertext" => base64_encode($ciphertext)));
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$cipher_json = base64_encode($encrypted_header_json_object);
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$encrypted_header = "<encrypted_header>".$cipher_json."</encrypted_header>";
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$magic_env = <<< EOT
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<?xml version='1.0' encoding='UTF-8'?>
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<diaspora xmlns="https://joindiaspora.com/protocol" xmlns:me="http://salmon-protocol.org/ns/magic-env" >
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$encrypted_header
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<me:env>
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<me:encoding>base64url</me:encoding>
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<me:alg>RSA-SHA256</me:alg>
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<me:data type="application/xml">$data</me:data>
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<me:sig>$sig</me:sig>
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</me:env>
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</diaspora>
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EOT;
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logger("magic_env: ".$magic_env, LOGGER_DATA);
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return $magic_env;
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}
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private function build_message($msg, $user, $contact, $prvkey, $pubkey, $public = false) {
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if ($public)
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$magic_env = self::build_public_message($msg,$user,$contact,$prvkey,$pubkey);
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else
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$magic_env = self::build_private_message($msg,$user,$contact,$prvkey,$pubkey);
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// The data that will be transmitted is double encoded via "urlencode", strange ...
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$slap = "xml=".urlencode(urlencode($magic_env));
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return $slap;
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}
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private function transmit($owner, $contact, $slap, $public_batch, $queue_run=false, $guid = "") {
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$a = get_app();
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$enabled = intval(get_config("system", "diaspora_enabled"));
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if(!$enabled)
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return 200;
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$logid = random_string(4);
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$dest_url = (($public_batch) ? $contact["batch"] : $contact["notify"]);
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if (!$dest_url) {
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logger("no url for contact: ".$contact["id"]." batch mode =".$public_batch);
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return 0;
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}
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logger("transmit: ".$logid."-".$guid." ".$dest_url);
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if (!$queue_run && was_recently_delayed($contact["id"])) {
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$return_code = 0;
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} else {
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if (!intval(get_config("system", "diaspora_test"))) {
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post_url($dest_url."/", $slap);
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$return_code = $a->get_curl_code();
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} else {
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logger("test_mode");
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return 200;
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}
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}
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logger("transmit: ".$logid."-".$guid." returns: ".$return_code);
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if(!$return_code || (($return_code == 503) && (stristr($a->get_curl_headers(), "retry-after")))) {
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logger("queue message");
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$r = q("SELECT `id` FROM `queue` WHERE `cid` = %d AND `network` = '%s' AND `content` = '%s' AND `batch` = %d LIMIT 1",
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intval($contact["id"]),
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dbesc(NETWORK_DIASPORA),
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dbesc($slap),
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intval($public_batch)
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);
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if(count($r)) {
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logger("add_to_queue ignored - identical item already in queue");
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} else {
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// queue message for redelivery
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add_to_queue($contact["id"], NETWORK_DIASPORA, $slap, $public_batch);
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}
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}
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return(($return_code) ? $return_code : (-1));
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}
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public static function send_share($me,$contact) {
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$myaddr = self::get_my_handle($me);
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$theiraddr = $contact["addr"];
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$data = array("XML" => array("post" => array("request" => array(
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"sender_handle" => $myaddr,
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"recipient_handle" => $theiraddr
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))));
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$msg = xml::from_array($data, $xml);
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$slap = self::build_message($msg, $me, $contact, $me["prvkey"], $contact["pubkey"]);
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return(self::transmit($owner,$contact,$slap, false));
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}
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public static function send_unshare($me,$contact) {
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$myaddr = self::get_my_handle($me);
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$data = array("XML" => array("post" => array("retraction" => array(
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"post_guid" => $me["guid"],
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"diaspora_handle" => $myaddr,
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"type" => "Person"
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))));
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$msg = xml::from_array($data, $xml);
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$slap = self::build_message($msg, $me, $contact, $me["prvkey"], $contact["pubkey"]);
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return(self::transmit($owner,$contact,$slap, false));
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}
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function is_reshare($body) {
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$body = trim($body);
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// Skip if it isn't a pure repeated messages
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// Does it start with a share?
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if (strpos($body, "[share") > 0)
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return(false);
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// Does it end with a share?
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if (strlen($body) > (strrpos($body, "[/share]") + 8))
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return(false);
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$attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
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// Skip if there is no shared message in there
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if ($body == $attributes)
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return(false);
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$guid = "";
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preg_match("/guid='(.*?)'/ism", $attributes, $matches);
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if ($matches[1] != "")
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$guid = $matches[1];
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preg_match('/guid="(.*?)"/ism', $attributes, $matches);
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if ($matches[1] != "")
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$guid = $matches[1];
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if ($guid != "") {
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$r = q("SELECT `contact-id` FROM `item` WHERE `guid` = '%s' AND `network` IN ('%s', '%s') LIMIT 1",
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dbesc($guid), NETWORK_DFRN, NETWORK_DIASPORA);
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if ($r) {
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$ret= array();
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$ret["root_handle"] = diaspora_handle_from_contact($r[0]["contact-id"]);
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$ret["root_guid"] = $guid;
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return($ret);
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}
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}
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$profile = "";
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preg_match("/profile='(.*?)'/ism", $attributes, $matches);
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if ($matches[1] != "")
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$profile = $matches[1];
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preg_match('/profile="(.*?)"/ism', $attributes, $matches);
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if ($matches[1] != "")
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$profile = $matches[1];
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$ret= array();
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$ret["root_handle"] = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
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if (($ret["root_handle"] == $profile) OR ($ret["root_handle"] == ""))
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return(false);
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$link = "";
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preg_match("/link='(.*?)'/ism", $attributes, $matches);
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if ($matches[1] != "")
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$link = $matches[1];
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preg_match('/link="(.*?)"/ism', $attributes, $matches);
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if ($matches[1] != "")
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$link = $matches[1];
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$ret["root_guid"] = preg_replace("=https?://(.*)/posts/(.*)=ism", "$2", $link);
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if (($ret["root_guid"] == $link) OR ($ret["root_guid"] == ""))
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return(false);
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return($ret);
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}
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function send_status($item, $owner, $contact, $public_batch = false) {
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$myaddr = self::get_my_handle($owner);
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$theiraddr = $contact["addr"];
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$title = $item["title"];
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$body = $item["body"];
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// convert to markdown
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$body = html_entity_decode(bb2diaspora($body));
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// Adding the title
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if(strlen($title))
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$body = "## ".html_entity_decode($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";
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
$public = (($item["private"]) ? "false" : "true");
|
||||
|
||||
$created = datetime_convert("UTC", "UTC", $item["created"], 'Y-m-d H:i:s \U\T\C');
|
||||
|
||||
// Detect a share element and do a reshare
|
||||
if (!$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"]);
|
||||
|
||||
$data = array("XML" => array("post" => array("reshare" => $message)));
|
||||
} else {
|
||||
$location = array();
|
||||
|
||||
if ($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" => $item["app"]);
|
||||
|
||||
if (count($location) == 0)
|
||||
unset($message["location"]);
|
||||
|
||||
$data = array("XML" => array("post" => array("status_message" => $message)));
|
||||
}
|
||||
|
||||
$msg = xml::from_array($data, $xml);
|
||||
|
||||
logger("status: ".$owner["username"]." -> ".$contact["name"]." base message: ".$msg, LOGGER_DATA);
|
||||
logger("send guid ".$item["guid"], LOGGER_DEBUG);
|
||||
|
||||
$slap = self::build_message($msg, $owner, $contact, $owner["uprvkey"], $contact["pubkey"], $public_batch);
|
||||
|
||||
$return_code = self::transmit($owner,$contact,$slap, false);
|
||||
|
||||
logger("guid: ".$item["guid"]." result ".$return_code, LOGGER_DEBUG);
|
||||
|
||||
return $return_code;
|
||||
}
|
||||
|
||||
function send_mail($item,$owner,$contact) {
|
||||
|
||||
$myaddr = self::get_my_handle($owner);
|
||||
|
||||
$r = q("SELECT * FROM `conv` WHERE `id` = %d AND `uid` = %d LIMIT 1",
|
||||
intval($item["convid"]),
|
||||
intval($item["uid"])
|
||||
);
|
||||
|
||||
if (!count($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 H:i:s \U\T\C'),
|
||||
"diaspora_handle" => $cnv["creator"],
|
||||
"participant_handles" => $cnv["recips"]
|
||||
);
|
||||
|
||||
$body = bb2diaspora($item["body"]);
|
||||
$created = datetime_convert("UTC", "UTC", $item["created"], 'Y-m-d H:i:s \U\T\C');
|
||||
|
||||
$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"])
|
||||
$data = array("XML" => array("post" => array("message" => $msg)));
|
||||
else {
|
||||
$message = array("guid" => $cnv["guid"],
|
||||
"subject" => $cnv["subject"],
|
||||
"created_at" => datetime_convert("UTC", "UTC", $cnv['created'], 'Y-m-d H:i:s \U\T\C'),
|
||||
"message" => $msg,
|
||||
"diaspora_handle" => $cnv["creator"],
|
||||
"participant_handles" => $cnv["recips"]);
|
||||
|
||||
$data = array("XML" => array("post" => array("conversation" => $message)));
|
||||
}
|
||||
|
||||
$xmsg = xml::from_array($data, $xml);
|
||||
|
||||
logger("conversation: ".print_r($xmsg,true), LOGGER_DATA);
|
||||
logger("send guid ".$item["guid"], LOGGER_DEBUG);
|
||||
|
||||
$slap = self::build_message($xmsg, $owner, $contact, $owner["uprvkey"], $contact["pubkey"], false);
|
||||
|
||||
$return_code = self::transmit($owner, $contact, $slap, false, false, $item["guid"]);
|
||||
|
||||
logger("guid: ".$item["guid"]." result ".$return_code, LOGGER_DEBUG);
|
||||
|
||||
return $return_code;
|
||||
}
|
||||
}
|
||||
?>
|
||||
|
|
|
|||
39
include/xml.php
Normal file
39
include/xml.php
Normal file
|
|
@ -0,0 +1,39 @@
|
|||
<?php
|
||||
/**
|
||||
* @brief This class contain functions to work with XML data
|
||||
*
|
||||
*/
|
||||
class xml {
|
||||
function from_array($array, &$xml) {
|
||||
|
||||
if (!is_object($xml)) {
|
||||
foreach($array as $key => $value) {
|
||||
$root = new SimpleXMLElement("<".$key."/>");
|
||||
self::from_array($value, $root);
|
||||
|
||||
$dom = dom_import_simplexml($root)->ownerDocument;
|
||||
$dom->formatOutput = true;
|
||||
$xml = $dom;
|
||||
return $dom->saveXML();
|
||||
}
|
||||
}
|
||||
|
||||
foreach($array as $key => $value) {
|
||||
if (!is_array($value) AND !is_numeric($key))
|
||||
$xml->addChild($key, $value);
|
||||
elseif (is_array($value))
|
||||
self::from_array($value, $xml->addChild($key));
|
||||
}
|
||||
}
|
||||
|
||||
function copy(&$source, &$target, $elementname) {
|
||||
if (count($source->children()) == 0)
|
||||
$target->addChild($elementname, $source);
|
||||
else {
|
||||
$child = $target->addChild($elementname);
|
||||
foreach ($source->children() AS $childfield => $childentry)
|
||||
self::copy($childentry, $child, $childfield);
|
||||
}
|
||||
}
|
||||
}
|
||||
?>
|
||||
Loading…
Reference in a new issue