<?php
-require_once('simplepie/simplepie.inc');
require_once('include/items.php');
+require_once('include/dfrn.php');
+require_once('include/event.php');
+require_once('library/defuse/php-encryption-1.2.1/Crypto.php');
function dfrn_notify_post(&$a) {
+ logger(__function__, LOGGER_TRACE);
+ $dfrn_id = ((x($_POST,'dfrn_id')) ? notags(trim($_POST['dfrn_id'])) : '');
+ $dfrn_version = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version'] : 2.0);
+ $challenge = ((x($_POST,'challenge')) ? notags(trim($_POST['challenge'])) : '');
+ $data = ((x($_POST,'data')) ? $_POST['data'] : '');
+ $key = ((x($_POST,'key')) ? $_POST['key'] : '');
+ $rino_remote = ((x($_POST,'rino')) ? intval($_POST['rino']) : 0);
+ $dissolve = ((x($_POST,'dissolve')) ? intval($_POST['dissolve']) : 0);
+ $perm = ((x($_POST,'perm')) ? notags(trim($_POST['perm'])) : 'r');
+ $ssl_policy = ((x($_POST,'ssl_policy')) ? notags(trim($_POST['ssl_policy'])): 'none');
+ $page = ((x($_POST,'page')) ? intval($_POST['page']) : 0);
+
+ $forum = (($page == 1) ? 1 : 0);
+ $prv = (($page == 2) ? 1 : 0);
+
+ $writable = (-1);
+ if($dfrn_version >= 2.21) {
+ $writable = (($perm === 'rw') ? 1 : 0);
+ }
+
+ $direction = (-1);
+ if(strpos($dfrn_id,':') == 1) {
+ $direction = intval(substr($dfrn_id,0,1));
+ $dfrn_id = substr($dfrn_id,2);
+ }
- $dfrn_id = notags(trim($_POST['dfrn_id']));
- $challenge = notags(trim($_POST['challenge']));
- $data = $_POST['data'];
$r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
dbesc($dfrn_id),
dbesc($challenge)
);
- if(! count($r))
+ if(! count($r)) {
+ logger('dfrn_notify: could not match challenge to dfrn_id ' . $dfrn_id . ' challenge=' . $challenge);
xml_status(3);
+ }
- $r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
+ $r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s'",
dbesc($dfrn_id),
dbesc($challenge)
);
// find the local user who owns this relationship.
- $r = q("SELECT * FROM `contact` WHERE `issued-id` = '%s' LIMIT 1",
- dbesc($dfrn_id)
+ $sql_extra = '';
+ switch($direction) {
+ case (-1):
+ $sql_extra = sprintf(" AND ( `issued-id` = '%s' OR `dfrn-id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
+ break;
+ case 0:
+ $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
+ break;
+ case 1:
+ $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
+ break;
+ default:
+ xml_status(3);
+ break; // NOTREACHED
+ }
+
+ // be careful - $importer will contain both the contact information for the contact
+ // sending us the post, and also the user information for the person receiving it.
+ // since they are mixed together, it is easy to get them confused.
+
+ $r = q("SELECT `contact`.*, `contact`.`uid` AS `importer_uid`,
+ `contact`.`pubkey` AS `cpubkey`,
+ `contact`.`prvkey` AS `cprvkey`,
+ `contact`.`thumb` AS `thumb`,
+ `contact`.`url` as `url`,
+ `contact`.`name` as `senderName`,
+ `user`.*
+ FROM `contact`
+ LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
+ WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
+ AND `user`.`nickname` = '%s' AND `user`.`account_expired` = 0 AND `user`.`account_removed` = 0 $sql_extra LIMIT 1",
+ dbesc($a->argv[1])
);
+
if(! count($r)) {
+ logger('dfrn_notify: contact not found for dfrn_id ' . $dfrn_id);
xml_status(3);
- return; //NOTREACHED
+ //NOTREACHED
}
- // We aren't really interested in anything this person has to say. But be polite and make them
- // think we're listening intently by acknowledging receipt of their communications - which we quietly ignore.
+ // $importer in this case contains the contact record for the remote contact joined with the user record of our user.
- if($r[0]['readonly']) {
- xml_status(0);
- return; //NOTREACHED
- }
-
$importer = $r[0];
- $feed = new SimplePie();
- $feed->set_raw_data($data);
- $feed->enable_order_by_date(false);
- $feed->init();
-
- $ismail = false;
-
- $rawmail = $feed->get_feed_tags( NAMESPACE_DFRN, 'mail' );
- if(isset($rawmail[0]['child'][NAMESPACE_DFRN])) {
- $ismail = true;
- $base = $rawmail[0]['child'][NAMESPACE_DFRN];
-
- $msg = array();
- $msg['uid'] = $importer['uid'];
- $msg['from-name'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['name'][0]['data']));
- $msg['from-photo'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']));
- $msg['from-url'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['uri'][0]['data']));
- $msg['contact-id'] = $importer['id'];
- $msg['title'] = notags(unxmlify($base['subject'][0]['data']));
- $msg['body'] = escape_tags(unxmlify($base['content'][0]['data']));
- $msg['delivered'] = 1;
- $msg['seen'] = 0;
- $msg['replied'] = 0;
- $msg['uri'] = notags(unxmlify($base['id'][0]['data']));
- $msg['parent-uri'] = notags(unxmlify($base['in-reply-to'][0]['data']));
- $msg['created'] = datetime_convert(notags(unxmlify('UTC','UTC',$base['sentdate'][0]['data'])));
-
- $r = q("INSERT INTO `mail` (`" . implode("`, `", array_keys($msg))
- . "`) VALUES ('" . implode("', '", array_values($msg)) . "')" );
-
- // send email notification if requested.
- $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
- intval($importer['uid'])
+ logger("Remote rino version: ".$rino_remote." for ".$importer["url"], LOGGER_DEBUG);
+
+ if((($writable != (-1)) && ($writable != $importer['writable'])) || ($importer['forum'] != $forum) || ($importer['prv'] != $prv)) {
+ q("UPDATE `contact` SET `writable` = %d, forum = %d, prv = %d WHERE `id` = %d",
+ intval(($writable == (-1)) ? $importer['writable'] : $writable),
+ intval($forum),
+ intval($prv),
+ intval($importer['id'])
);
- require_once('bbcode.php');
- if((count($r)) && ($r[0]['notify_flags'] & NOTIFY_MAIL)) {
- $tpl = file_get_contents('view/mail_received_eml.tpl');
- $email_tpl = replace_macros($tpl, array(
- '$sitename' => $a->config['sitename'],
- '$siteurl' => $a->get_baseurl(),
- '$username' => $r[0]['username'],
- '$email' => $r[0]['email'],
- '$from' => $msg['from-name'],
- '$fn' => $r[0]['name'],
- '$title' => $msg['title'],
- '$body' => strip_tags(bbcode($msg['body']))
- ));
-
- $res = mail($r[0]['email'], t("New mail received at ") . $a->config['sitename'],
- $email_tpl,t("From: Administrator@") . $_SERVER[SERVER_NAME] );
- if(!$res) {
- notice( t("Email notification failed.") . EOL );
- }
- }
+ if($writable != (-1))
+ $importer['writable'] = $writable;
+ $importer['forum'] = $page;
+ }
- xml_status(0);
- return;
- }
- foreach($feed->get_items() as $item) {
+ // if contact's ssl policy changed, update our links
- $deleted = false;
+ fix_contact_ssl_policy($importer,$ssl_policy);
- $rawdelete = $item->get_item_tags("http://purl.org/atompub/tombstones/1.0", 'deleted-entry');
- if(isset($rawdelete[0]['attribs']['']['ref'])) {
- $uri = $rawthread[0]['attribs']['']['ref'];
- $deleted = true;
- if(isset($rawdelete[0]['attribs']['']['when'])) {
- $when = $rawthread[0]['attribs']['']['when'];
- $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
- }
- else
- $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
- }
- if($deleted) {
- $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
- dbesc($uri),
- intval($importer['uid'])
- );
- if(count($r)) {
- if($r[0]['uri'] == $r[0]['parent-uri']) {
- $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s'
- WHERE `parent-uri` = '%s'",
- dbesc($when),
- dbesc($r[0]['uri'])
- );
- }
- else {
- $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s'
- WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
- dbesc($when),
- dbesc($uri),
- intval($importer['uid'])
- );
- }
- }
- continue;
- }
+ logger('dfrn_notify: received notify from ' . $importer['name'] . ' for ' . $importer['username']);
+ logger('dfrn_notify: data: ' . $data, LOGGER_DATA);
- $is_reply = false;
- $item_id = $item->get_id();
- $rawthread = $item->get_item_tags("http://purl.org/syndication/thread/1.0",'in-reply-to');
- if(isset($rawthread[0]['attribs']['']['ref'])) {
- $is_reply = true;
- $parent_uri = $rawthread[0]['attribs']['']['ref'];
- }
+ if($dissolve == 1) {
+ /**
+ * Relationship is dissolved permanently
+ */
- if($is_reply) {
- if($feed->get_item_quantity() == 1) {
- // remote reply to our post. Import and then notify everybody else.
- $datarray = get_atom_elements($item);
- $urn = explode(':',$parent_urn);
- $datarray['type'] = 'remote-comment';
- $datarray['parent-uri'] = $parent_uri;
- $datarray['uid'] = $importer['uid'];
- $datarray['contact-id'] = $importer['id'];
- $posted_id = post_remote($a,$datarray);
-
- $r = q("SELECT `parent` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
- intval($posted_id),
- intval($importer['uid'])
- );
- if(count($r)) {
- $r1 = q("UPDATE `item` SET `last-child` = 0 WHERE `uid` = %d AND `parent` = %d",
- intval($importer['uid']),
- intval($r[0]['parent'])
- );
- }
- $r2 = q("UPDATE `item` SET `last-child` = 1 WHERE `uid` = %d AND `id` = %d LIMIT 1",
- intval($importer['uid']),
- intval($posted_id)
- );
+ require_once('include/Contact.php');
+ contact_remove($importer['id']);
+ logger('relationship dissolved : ' . $importer['name'] . ' dissolved ' . $importer['username']);
+ xml_status(0);
+
+ }
- $url = $a->get_baseurl();
- proc_close(proc_open("php include/notifier.php $url comment-import $posted_id > remote-notify.log &", array(),$foo));
+ // If we are setup as a soapbox we aren't accepting input from this person
+ // This behaviour is deactivated since it really doesn't make sense to even disallow comments
+ // The check if someone is a friend or simply a follower is done in a later place so it needn't to be done here
+ //if($importer['page-flags'] == PAGE_SOAPBOX)
+ // xml_status(0);
- xml_status(0);
- return;
+ $rino = get_config('system','rino_encrypt');
+ $rino = intval($rino);
+ // use RINO1 if mcrypt isn't installed and RINO2 was selected
+ if ($rino==2 and !function_exists('mcrypt_create_iv')) $rino=1;
+ logger("Local rino version: ". $rino, LOGGER_DEBUG);
+
+ if(strlen($key)) {
+
+ // if local rino is lower than remote rino, abort: should not happen!
+ // but only for $remote_rino > 1, because old code did't send rino version
+ if ($rino_remote_version > 1 && $rino < $rino_remote) {
+ logger("rino version '$rino_remote' is lower than supported '$rino'");
+ xml_status(0,"rino version '$rino_remote' is lower than supported '$rino'");
+ }
+
+ $rawkey = hex2bin(trim($key));
+ logger('rino: md5 raw key: ' . md5($rawkey));
+ $final_key = '';
+
+ if($dfrn_version >= 2.1) {
+ if((($importer['duplex']) && strlen($importer['cprvkey'])) || (! strlen($importer['cpubkey']))) {
+ openssl_private_decrypt($rawkey,$final_key,$importer['cprvkey']);
}
else {
- // regular comment that is part of this total conversation. Have we seen it? If not, import it.
-
- $item_id = $item->get_id();
-
- $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
- dbesc($item_id),
- intval($importer['uid'])
- );
- // FIXME update content if 'updated' changes
- if(count($r)) {
- $allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
- if($allow && $allow[0]['data'] != $r[0]['last-child']) {
- $r = q("UPDATE `item` SET `last-child` = %d WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
- intval($allow[0]['data']),
- dbesc($item_id),
- intval($importer['uid'])
- );
- }
- continue;
- }
- $datarray = get_atom_elements($item);
- $datarray['parent-uri'] = $parent_uri;
- $datarray['uid'] = $importer['uid'];
- $datarray['contact-id'] = $importer['id'];
- $r = post_remote($a,$datarray);
- continue;
+ openssl_public_decrypt($rawkey,$final_key,$importer['cpubkey']);
}
}
else {
- // Head post of a conversation. Have we seen it? If not, import it.
-
- $item_id = $item->get_id();
- $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
- dbesc($item_id),
- intval($importer['uid'])
- );
- if(count($r)) {
- $allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
- if($allow && $allow[0]['data'] != $r[0]['last-child']) {
- $r = q("UPDATE `item` SET `last-child` = %d WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
- intval($allow[0]['data']),
- dbesc($item_id),
- intval($importer['uid'])
- );
- }
- continue;
+ if((($importer['duplex']) && strlen($importer['cpubkey'])) || (! strlen($importer['cprvkey']))) {
+ openssl_public_decrypt($rawkey,$final_key,$importer['cpubkey']);
}
+ else {
+ openssl_private_decrypt($rawkey,$final_key,$importer['cprvkey']);
+ }
+ }
+ #logger('rino: received key : ' . $final_key);
+
+ switch($rino_remote) {
+ case 0:
+ case 1:
+ // we got a key. old code send only the key, without RINO version.
+ // we assume RINO 1 if key and no RINO version
+ $data = aes_decrypt(hex2bin($data),$final_key);
+ break;
+ case 2:
+ try {
+ $data = Crypto::decrypt(hex2bin($data),$final_key);
+ } catch (InvalidCiphertext $ex) { // VERY IMPORTANT
+ // Either:
+ // 1. The ciphertext was modified by the attacker,
+ // 2. The key is wrong, or
+ // 3. $ciphertext is not a valid ciphertext or was corrupted.
+ // Assume the worst.
+ logger('The ciphertext has been tampered with!');
+ xml_status(0,'The ciphertext has been tampered with!');
+ } catch (Ex\CryptoTestFailed $ex) {
+ logger('Cannot safely perform dencryption');
+ xml_status(0,'CryptoTestFailed');
+ } catch (Ex\CannotPerformOperation $ex) {
+ logger('Cannot safely perform decryption');
+ xml_status(0,'Cannot safely perform decryption');
+ }
+ break;
+ default:
+ logger("rino: invalid sent verision '$rino_remote'");
+ xml_status(0);
+ }
- $datarray = get_atom_elements($item);
- $datarray['parent-uri'] = $item_id;
- $datarray['uid'] = $importer['uid'];
- $datarray['contact-id'] = $importer['id'];
- $r = post_remote($a,$datarray);
- continue;
- }
-
+ logger('rino: decrypted data: ' . $data, LOGGER_DATA);
}
- xml_status(0);
- killme();
+ $ret = dfrn::import($data, $importer);
+ xml_status($ret);
+ // NOTREACHED
}
function dfrn_notify_content(&$a) {
if(x($_GET,'dfrn_id')) {
- // initial communication from external contact
+
+ // initial communication from external contact, $direction is their direction.
+ // If this is a duplex communication, ours will be the opposite.
+
+ $dfrn_id = notags(trim($_GET['dfrn_id']));
+ $dfrn_version = (float) $_GET['dfrn_version'];
+ $rino_remote = ((x($_GET,'rino')) ? intval($_GET['rino']) : 0);
+ $type = "";
+ $last_update = "";
+
+ logger('dfrn_notify: new notification dfrn_id=' . $dfrn_id);
+
+ $direction = (-1);
+ if(strpos($dfrn_id,':') == 1) {
+ $direction = intval(substr($dfrn_id,0,1));
+ $dfrn_id = substr($dfrn_id,2);
+ }
+
$hash = random_string();
$status = 0;
$r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
- $r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
- VALUES( '%s', '%s', '%s') ",
+ $r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` , `type`, `last_update` )
+ VALUES( '%s', '%s', %d, '%s', '%s' ) ",
dbesc($hash),
- dbesc(notags(trim($_GET['dfrn_id']))),
- intval(time() + 60 )
+ dbesc($dfrn_id),
+ intval(time() + 90 ),
+ dbesc($type),
+ dbesc($last_update)
+ );
+
+ logger('dfrn_notify: challenge=' . $hash, LOGGER_DEBUG);
+
+ $sql_extra = '';
+ switch($direction) {
+ case (-1):
+ $sql_extra = sprintf(" AND ( `issued-id` = '%s' OR `dfrn-id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
+ $my_id = $dfrn_id;
+ break;
+ case 0:
+ $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
+ $my_id = '1:' . $dfrn_id;
+ break;
+ case 1:
+ $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
+ $my_id = '0:' . $dfrn_id;
+ break;
+ default:
+ $status = 1;
+ break; // NOTREACHED
+ }
+
+ $r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`page-flags` FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
+ WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0 AND `user`.`nickname` = '%s'
+ AND `user`.`account_expired` = 0 AND `user`.`account_removed` = 0 $sql_extra LIMIT 1",
+ dbesc($a->argv[1])
);
- $r = q("SELECT * FROM `contact` WHERE `issued-id` = '%s' AND `blocked` = 0 AND `pending` = 0 LIMIT 1",
- dbesc($_GET['dfrn_id']));
- if((! count($r)) || (! strlen($r[0]['prvkey'])))
+ if(! count($r))
$status = 1;
+ logger("Remote rino version: ".$rino_remote." for ".$r[0]["url"], LOGGER_DEBUG);
+
$challenge = '';
+ $encrypted_id = '';
+ $id_str = $my_id . '.' . mt_rand(1000,9999);
- openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
- $challenge = bin2hex($challenge);
+ $prv_key = trim($r[0]['prvkey']);
+ $pub_key = trim($r[0]['pubkey']);
+ $dplx = intval($r[0]['duplex']);
- $encrypted_id = '';
- $id_str = $_GET['dfrn_id'] . '.' . mt_rand(1000,9999);
+ if((($dplx) && (strlen($prv_key))) || ((strlen($prv_key)) && (!(strlen($pub_key))))) {
+ openssl_private_encrypt($hash,$challenge,$prv_key);
+ openssl_private_encrypt($id_str,$encrypted_id,$prv_key);
+ }
+ elseif(strlen($pub_key)) {
+ openssl_public_encrypt($hash,$challenge,$pub_key);
+ openssl_public_encrypt($id_str,$encrypted_id,$pub_key);
+ }
+ else
+ $status = 1;
- openssl_private_encrypt($id_str,$encrypted_id,$r[0]['prvkey']);
+ $challenge = bin2hex($challenge);
$encrypted_id = bin2hex($encrypted_id);
- echo '<?xml version="1.0" encoding="UTF-8"?><dfrn_notify><status>' .$status . '</status><dfrn_id>' . $encrypted_id . '</dfrn_id>'
- . '<challenge>' . $challenge . '</challenge></dfrn_notify>' . "\r\n" ;
- session_write_close();
- exit;
-
+
+ $rino = get_config('system','rino_encrypt');
+ $rino = intval($rino);
+ // use RINO1 if mcrypt isn't installed and RINO2 was selected
+ if ($rino==2 and !function_exists('mcrypt_create_iv')) $rino=1;
+
+ logger("Local rino version: ". $rino, LOGGER_DEBUG);
+
+ // if requested rino is lower than enabled local rino, lower local rino version
+ // if requested rino is higher than enabled local rino, reply with local rino
+ if ($rino_remote < $rino) $rino = $rino_remote;
+
+ if((($r[0]['rel']) && ($r[0]['rel'] != CONTACT_IS_SHARING)) || ($r[0]['page-flags'] == PAGE_COMMUNITY)) {
+ $perm = 'rw';
+ }
+ else {
+ $perm = 'r';
+ }
+
+ header("Content-type: text/xml");
+
+ echo '<?xml version="1.0" encoding="UTF-8"?>' . "\r\n"
+ . '<dfrn_notify>' . "\r\n"
+ . "\t" . '<status>' . $status . '</status>' . "\r\n"
+ . "\t" . '<dfrn_version>' . DFRN_PROTOCOL_VERSION . '</dfrn_version>' . "\r\n"
+ . "\t" . '<rino>' . $rino . '</rino>' . "\r\n"
+ . "\t" . '<perm>' . $perm . '</perm>' . "\r\n"
+ . "\t" . '<dfrn_id>' . $encrypted_id . '</dfrn_id>' . "\r\n"
+ . "\t" . '<challenge>' . $challenge . '</challenge>' . "\r\n"
+ . '</dfrn_notify>' . "\r\n" ;
+
+ killme();
}
-}
\ No newline at end of file
+}
projects / friendica.git / blobdiff