3 function hub_return($valid,$body) {
6 header($_SERVER["SERVER_PROTOCOL"] . ' 200 ' . 'OK');
11 header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . 'Not Found');
18 // when receiving an XML feed, always return OK
20 function hub_post_return() {
22 header($_SERVER["SERVER_PROTOCOL"] . ' 200 ' . 'OK');
29 function pubsub_init(&$a) {
31 $nick = (($a->argc > 1) ? notags(trim($a->argv[1])) : '');
32 $contact_id = (($a->argc > 2) ? intval($a->argv[2]) : 0 );
34 if($_SERVER['REQUEST_METHOD'] === 'GET') {
36 $hub_mode = ((x($_GET,'hub_mode')) ? notags(trim($_GET['hub_mode'])) : '');
37 $hub_topic = ((x($_GET,'hub_topic')) ? notags(trim($_GET['hub_topic'])) : '');
38 $hub_challenge = ((x($_GET,'hub_challenge')) ? notags(trim($_GET['hub_challenge'])) : '');
39 $hub_lease = ((x($_GET,'hub_lease_seconds')) ? notags(trim($_GET['hub_lease_seconds'])) : '');
40 $hub_verify = ((x($_GET,'hub_verify_token')) ? notags(trim($_GET['hub_verify_token'])) : '');
42 logger('pubsub: Subscription from ' . $_SERVER['REMOTE_ADDR']);
43 logger('pubsub: data: ' . print_r($_GET,true), LOGGER_DATA);
45 $subscribe = (($hub_mode === 'subscribe') ? 1 : 0);
47 $r = q("SELECT * FROM `user` WHERE `nickname` = '%s' AND `account_expired` = 0 AND `account_removed` = 0 LIMIT 1",
51 logger('pubsub: local account not found: ' . $nick);
52 hub_return(false, '');
58 $sql_extra = ((strlen($hub_verify)) ? sprintf(" AND `hub-verify` = '%s' ", dbesc($hub_verify)) : '');
60 $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d
61 AND `blocked` = 0 AND `pending` = 0 $sql_extra LIMIT 1",
66 logger('pubsub: contact not found.');
67 hub_return(false, '');
70 if(! link_compare($hub_topic,$r[0]['poll'])) {
71 logger('pubsub: hub topic ' . $hub_topic . ' != ' . $r[0]['poll']);
72 // should abort but let's humour them.
77 // We must initiate an unsubscribe request with a verify_token.
78 // Don't allow outsiders to unsubscribe us.
80 if($hub_mode === 'unsubscribe') {
81 if(! strlen($hub_verify)) {
82 logger('pubsub: bogus unsubscribe');
83 hub_return(false, '');
85 logger('pubsub: unsubscribe success');
88 $r = q("UPDATE `contact` SET `subhub` = %d WHERE `id` = %d",
90 intval($contact['id'])
93 hub_return(true, $hub_challenge);
97 require_once('include/security.php');
99 function pubsub_post(&$a) {
101 $xml = file_get_contents('php://input');
103 logger('pubsub: feed arrived from ' . $_SERVER['REMOTE_ADDR'] . ' for ' . $a->cmd );
104 logger('pubsub: user-agent: ' . $_SERVER['HTTP_USER_AGENT'] );
105 logger('pubsub: data: ' . $xml, LOGGER_DATA);
107 // if(! stristr($xml,'<?xml')) {
108 // logger('pubsub_post: bad xml');
109 // hub_post_return();
112 $nick = (($a->argc > 1) ? notags(trim($a->argv[1])) : '');
113 $contact_id = (($a->argc > 2) ? intval($a->argv[2]) : 0 );
115 $r = q("SELECT * FROM `user` WHERE `nickname` = '%s' AND `account_expired` = 0 AND `account_removed` = 0 LIMIT 1",
123 $r = q("SELECT * FROM `contact` WHERE `subhub` = 1 AND `id` = %d AND `uid` = %d
124 AND ( `rel` = %d OR `rel` = %d OR network = '%s' ) AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
126 intval($importer['uid']),
127 intval(CONTACT_IS_SHARING),
128 intval(CONTACT_IS_FRIEND),
133 logger('pubsub: no contact record for "'.$nick.' ('.$contact_id.')" - ignored. '.$xml);
139 // we have no way to match Diaspora guid's with atom post id's and could get duplicates.
140 // we'll assume that direct delivery is robust (and this is a bad assumption, but the duplicates are messy).
142 if($r[0]['network'] === NETWORK_DIASPORA)
147 require_once('include/items.php');
149 consume_feed($xml,$importer,$contact,$feedhub,1,1);
151 // do it a second time so that any children find their parents.
153 consume_feed($xml,$importer,$contact,$feedhub,1,2);