*/
-
require_once('include/salmon.php');
-require_once('library/simplepie/simplepie.inc');
-
-function receive_return($val) {
-
- if($val >= 400)
- $err = 'Error';
- if($val >= 200 && $val < 300)
- $err = 'OK';
+require_once('include/crypto.php');
+require_once('include/diaspora.php');
- logger('mod-diaspora returns ' . $val);
- header($_SERVER["SERVER_PROTOCOL"] . ' ' . $val . ' ' . $err);
- killme();
-
-}
function receive_post(&$a) {
- if($a->argc != 3 || $a->argv[1] !== 'users')
- receive_return(500);
-
- $guid = $a->argv[2];
-
- $r = q("SELECT * FROM `user` WHERE `guid` = '%s' LIMIT 1",
- dbesc($guid)
- );
- if(! count($r))
- salmon_return(500);
-
- $importer = $r[0];
-
- $xml = $_POST['xml'];
-
- logger('mod-diaspora: new salmon ' . $xml, LOGGER_DATA);
-
- if(! $xml)
- receive_return(500);
-
- // parse the xml
- $dom = simplexml_load_string($xml,'SimpleXMLElement',0,NAMESPACE_SALMON_ME);
-
- // figure out where in the DOM tree our data is hiding
-
- if($dom->provenance->data)
- $base = $dom->provenance;
- elseif($dom->env->data)
- $base = $dom->env;
- elseif($dom->data)
- $base = $dom;
-
- if(! $base) {
- logger('mod-diaspora: unable to locate salmon data in xml ');
- receive_return(400);
+ $enabled = intval(get_config('system','diaspora_enabled'));
+ if(! $enabled) {
+ logger('mod-diaspora: disabled');
+ http_status_exit(500);
}
- // Stash the signature away for now. We have to find their key or it won't be good for anything.
- $signature = base64url_decode($base->sig);
-
- // unpack the data
-
- // strip whitespace so our data element will return to one big base64 blob
- $data = str_replace(array(" ","\t","\r","\n"),array("","","",""),$base->data);
-
- // stash away some other stuff for later
-
- $type = $base->data[0]->attributes()->type[0];
- $keyhash = $base->sig[0]->attributes()->keyhash[0];
- $encoding = $base->encoding;
- $alg = $base->alg;
-
- $signed_data = $data . '.' . base64url_encode($type) . '.' . base64url_encode($encoding) . '.' . base64url_encode($alg);
-
- // decode the data
- $data = base64url_decode($data);
+ $public = false;
- // Remove the xml declaration
- $data = preg_replace('/\<\?xml[^\?].*\?\>/','',$data);
-
- // Create a fake feed wrapper so simplepie doesn't choke
-
- $tpl = get_markup_template('fake_feed.tpl');
-
- $base = substr($data,strpos($data,'<entry'));
-
- $feedxml = $tpl . $base . '</feed>';
-
- logger('mod-diaspora: Processed feed: ' . $feedxml);
-
- // Now parse it like a normal atom feed to scrape out the author URI
-
- $feed = new SimplePie();
- $feed->set_raw_data($feedxml);
- $feed->enable_order_by_date(false);
- $feed->init();
-
- logger('mod-diaspora: Feed parsed.');
-
- if($feed->get_item_quantity()) {
- foreach($feed->get_items() as $item) {
- $author = $item->get_author();
- $author_link = unxmlify($author->get_link());
- break;
- }
- }
-
- if(! $author_link) {
- logger('mod-diaspora: Could not retrieve author URI.');
- receive_return(400);
+ if(($a->argc == 2) && ($a->argv[1] === 'public')) {
+ $public = true;
}
+ else {
- // Once we have the author URI, go to the web and try to find their public key
+ if($a->argc != 3 || $a->argv[1] !== 'users')
+ http_status_exit(500);
- logger('mod-salmon: Fetching key for ' . $author_link );
+ $guid = $a->argv[2];
+ $r = q("SELECT * FROM `user` WHERE `guid` = '%s' AND `account_expired` = 0 AND `account_removed` = 0 LIMIT 1",
+ dbesc($guid)
+ );
+ if(! count($r))
+ http_status_exit(500);
- $key = get_salmon_key($author_link,$keyhash);
-
- if(! $key) {
- logger('mod-salmon: Could not retrieve author key.');
- receive_return(400);
+ $importer = $r[0];
}
- // Setup RSA stuff to verify the signature
-
- set_include_path(get_include_path() . PATH_SEPARATOR . 'library' . PATH_SEPARATOR . 'phpsec');
+ // It is an application/x-www-form-urlencoded
- require_once('library/phpsec/Crypt/RSA.php');
+ logger('mod-diaspora: receiving post', LOGGER_DEBUG);
- $key_info = explode('.',$key);
+ $xml = urldecode($_POST['xml']);
- $m = base64url_decode($key_info[1]);
- $e = base64url_decode($key_info[2]);
-
- logger('mod-salmon: key details: ' . print_r($key_info,true));
-
- $rsa = new CRYPT_RSA();
- $rsa->signatureMode = CRYPT_RSA_SIGNATURE_PKCS1;
- $rsa->setHash('sha256');
-
- $rsa->modulus = new Math_BigInteger($m, 256);
- $rsa->k = strlen($rsa->modulus->toBytes());
- $rsa->exponent = new Math_BigInteger($e, 256);
-
- $verify = $rsa->verify($signed_data,$signature);
+ logger('mod-diaspora: new salmon ' . $xml, LOGGER_DATA);
- if(! $verify) {
- logger('mod-diaspora: Message did not verify. Discarding.');
- receive_return(400);
- }
+ if(! $xml)
+ http_status_exit(500);
- logger('mod-diaspora: Message verified.');
-
- /* decrypt the sucker */
- /*
- // TODO
- */
-
- /*
- *
- * If we reached this point, the message is good. Now let's figure out if the author is allowed to send us stuff.
- *
- */
-
- $r = q("SELECT * FROM `contact` WHERE `network` = 'dspr' AND ( `url` = '%s' OR `alias` = '%s')
- AND `uid` = %d LIMIT 1",
- dbesc($author_link),
- dbesc($author_link),
- intval($importer['uid'])
- );
- if(! count($r)) {
- logger('mod-diaspora: Author unknown to us.');
- }
-
- // is this a follower? Or have we ignored the person?
- // If so we can not accept this post.
-
- if((count($r)) && (($r[0]['readonly']) || ($r[0]['rel'] == REL_VIP) || ($r[0]['blocked']))) {
- logger('mod-diaspora: Ignoring this author.');
- receive_return(202);
- // NOTREACHED
- }
+ logger('mod-diaspora: message is okay', LOGGER_DEBUG);
- require_once('include/items.php');
+ $msg = diaspora_decode($importer,$xml);
- // Placeholder for hub discovery. We shouldn't find any hubs
- // since we supplied the fake feed header - and it doesn't have any.
+ logger('mod-diaspora: decoded', LOGGER_DEBUG);
- $hub = '';
+ logger('mod-diaspora: decoded msg: ' . print_r($msg,true), LOGGER_DATA);
- /**
- *
- * anti-spam measure: consume_feed will accept a follow activity from
- * this person (and nothing else) if there is no existing contact record.
- *
- */
+ if(! is_array($msg))
+ http_status_exit(500);
- $contact_rec = ((count($r)) ? $r[0] : null);
+ logger('mod-diaspora: dispatching', LOGGER_DEBUG);
- consume_feed($feedxml,$importer,$contact_rec,$hub);
+ $ret = 0;
+ if($public)
+ diaspora_dispatch_public($msg);
+ else
+ $ret = diaspora_dispatch($importer,$msg);
- receive_return(200);
+ http_status_exit(($ret) ? $ret : 200);
+ // NOTREACHED
}
-
-
-
projects / friendica.git / blobdiff