3 if(! function_exists('hub_return')) {
4 function hub_return($valid,$body) {
7 header($_SERVER["SERVER_PROTOCOL"] . ' 200 ' . 'OK');
12 header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . 'Not Found');
20 // when receiving an XML feed, always return OK
21 if(! function_exists('hub_post_return')) {
22 function hub_post_return() {
23 header($_SERVER["SERVER_PROTOCOL"] . ' 200 ' . 'OK');
29 if(! function_exists('pubsub_init')) {
30 function pubsub_init(&$a) {
32 $nick = (($a->argc > 1) ? notags(trim($a->argv[1])) : '');
33 $contact_id = (($a->argc > 2) ? intval($a->argv[2]) : 0 );
35 if($_SERVER['REQUEST_METHOD'] === 'GET') {
37 $hub_mode = ((x($_GET,'hub_mode')) ? notags(trim($_GET['hub_mode'])) : '');
38 $hub_topic = ((x($_GET,'hub_topic')) ? notags(trim($_GET['hub_topic'])) : '');
39 $hub_challenge = ((x($_GET,'hub_challenge')) ? notags(trim($_GET['hub_challenge'])) : '');
40 $hub_lease = ((x($_GET,'hub_lease_seconds')) ? notags(trim($_GET['hub_lease_seconds'])) : '');
41 $hub_verify = ((x($_GET,'hub_verify_token')) ? notags(trim($_GET['hub_verify_token'])) : '');
43 logger('pubsub: Subscription from ' . $_SERVER['REMOTE_ADDR']);
44 logger('pubsub: data: ' . print_r($_GET,true), LOGGER_DATA);
46 $subscribe = (($hub_mode === 'subscribe') ? 1 : 0);
48 $r = q("SELECT * FROM `user` WHERE `nickname` = '%s' AND `account_expired` = 0 AND `account_removed` = 0 LIMIT 1",
52 logger('pubsub: local account not found: ' . $nick);
53 hub_return(false, '');
59 $sql_extra = ((strlen($hub_verify)) ? sprintf(" AND `hub-verify` = '%s' ", dbesc($hub_verify)) : '');
61 $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d
62 AND `blocked` = 0 AND `pending` = 0 $sql_extra LIMIT 1",
67 logger('pubsub: contact '.$contact_id.' not found.');
68 hub_return(false, '');
72 if(! link_compare($hub_topic,$r[0]['poll'])) {
73 logger('pubsub: hub topic ' . $hub_topic . ' != ' . $r[0]['poll']);
74 // should abort but let's humour them.
79 // We must initiate an unsubscribe request with a verify_token.
80 // Don't allow outsiders to unsubscribe us.
82 if($hub_mode === 'unsubscribe') {
83 if(! strlen($hub_verify)) {
84 logger('pubsub: bogus unsubscribe');
85 hub_return(false, '');
87 logger('pubsub: unsubscribe success');
91 $r = q("UPDATE `contact` SET `subhub` = %d WHERE `id` = %d",
93 intval($contact['id'])
96 hub_return(true, $hub_challenge);
101 require_once('include/security.php');
103 if(! function_exists('pubsub_post')) {
104 function pubsub_post(&$a) {
106 $xml = file_get_contents('php://input');
108 logger('pubsub: feed arrived from ' . $_SERVER['REMOTE_ADDR'] . ' for ' . $a->cmd );
109 logger('pubsub: user-agent: ' . $_SERVER['HTTP_USER_AGENT'] );
110 logger('pubsub: data: ' . $xml, LOGGER_DATA);
112 // if(! stristr($xml,'<?xml')) {
113 // logger('pubsub_post: bad xml');
114 // hub_post_return();
117 $nick = (($a->argc > 1) ? notags(trim($a->argv[1])) : '');
118 $contact_id = (($a->argc > 2) ? intval($a->argv[2]) : 0 );
120 $r = q("SELECT * FROM `user` WHERE `nickname` = '%s' AND `account_expired` = 0 AND `account_removed` = 0 LIMIT 1",
128 $r = q("SELECT * FROM `contact` WHERE `subhub` = 1 AND `id` = %d AND `uid` = %d
129 AND ( `rel` = %d OR `rel` = %d OR network = '%s' ) AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
131 intval($importer['uid']),
132 intval(CONTACT_IS_SHARING),
133 intval(CONTACT_IS_FRIEND),
138 logger('pubsub: no contact record for "'.$nick.' ('.$contact_id.')" - ignored. '.$xml);
144 // we have no way to match Diaspora guid's with atom post id's and could get duplicates.
145 // we'll assume that direct delivery is robust (and this is a bad assumption, but the duplicates are messy).
147 if($r[0]['network'] === NETWORK_DIASPORA)
152 require_once('include/items.php');
154 consume_feed($xml,$importer,$contact,$feedhub,1,1);
156 // do it a second time so that any children find their parents.
158 consume_feed($xml,$importer,$contact,$feedhub,1,2);