7de5c7ebe1
NOTE: I didn't add "AND account_removed = 0" to facebook.php because I don't have a clone of the addons repository. Please someone do that for me. Thanks. Please check carefully. I tested locally on my server, but not with other servers.
160 lines
4.2 KiB
PHP
160 lines
4.2 KiB
PHP
<?php
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function hub_return($valid,$body) {
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if($valid) {
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header($_SERVER["SERVER_PROTOCOL"] . ' 200 ' . 'OK');
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echo $body;
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killme();
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}
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else {
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header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . 'Not Found');
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killme();
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}
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// NOTREACHED
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}
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// when receiving an XML feed, always return OK
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function hub_post_return() {
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header($_SERVER["SERVER_PROTOCOL"] . ' 200 ' . 'OK');
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killme();
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}
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function pubsub_init(&$a) {
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$nick = (($a->argc > 1) ? notags(trim($a->argv[1])) : '');
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$contact_id = (($a->argc > 2) ? intval($a->argv[2]) : 0 );
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if($_SERVER['REQUEST_METHOD'] === 'GET') {
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$hub_mode = ((x($_GET,'hub_mode')) ? notags(trim($_GET['hub_mode'])) : '');
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$hub_topic = ((x($_GET,'hub_topic')) ? notags(trim($_GET['hub_topic'])) : '');
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$hub_challenge = ((x($_GET,'hub_challenge')) ? notags(trim($_GET['hub_challenge'])) : '');
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$hub_lease = ((x($_GET,'hub_lease_seconds')) ? notags(trim($_GET['hub_lease_seconds'])) : '');
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$hub_verify = ((x($_GET,'hub_verify_token')) ? notags(trim($_GET['hub_verify_token'])) : '');
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logger('pubsub: Subscription from ' . $_SERVER['REMOTE_ADDR']);
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logger('pubsub: data: ' . print_r($_GET,true), LOGGER_DATA);
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$subscribe = (($hub_mode === 'subscribe') ? 1 : 0);
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$r = q("SELECT * FROM `user` WHERE `nickname` = '%s' AND `account_expired` = 0 AND `account_removed` = 0 LIMIT 1",
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dbesc($nick)
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);
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if(! count($r)) {
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logger('pubsub: local account not found: ' . $nick);
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hub_return(false, '');
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}
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$owner = $r[0];
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$sql_extra = ((strlen($hub_verify)) ? sprintf(" AND `hub-verify` = '%s' ", dbesc($hub_verify)) : '');
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$r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d
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AND `blocked` = 0 AND `pending` = 0 $sql_extra LIMIT 1",
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intval($contact_id),
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intval($owner['uid'])
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);
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if(! count($r)) {
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logger('pubsub: contact not found.');
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hub_return(false, '');
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}
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if(! link_compare($hub_topic,$r[0]['poll'])) {
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logger('pubsub: hub topic ' . $hub_topic . ' != ' . $r[0]['poll']);
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// should abort but let's humour them.
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}
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$contact = $r[0];
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// We must initiate an unsubscribe request with a verify_token.
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// Don't allow outsiders to unsubscribe us.
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if($hub_mode === 'unsubscribe') {
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if(! strlen($hub_verify)) {
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logger('pubsub: bogus unsubscribe');
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hub_return(false, '');
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}
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logger('pubsub: unsubscribe success');
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}
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$r = q("UPDATE `contact` SET `subhub` = %d WHERE `id` = %d LIMIT 1",
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intval($subscribe),
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intval($contact['id'])
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);
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hub_return(true, $hub_challenge);
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}
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}
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require_once('include/security.php');
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function pubsub_post(&$a) {
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$xml = file_get_contents('php://input');
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logger('pubsub: feed arrived from ' . $_SERVER['REMOTE_ADDR'] . ' for ' . $a->cmd );
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logger('pubsub: user-agent: ' . $_SERVER['HTTP_USER_AGENT'] );
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logger('pubsub: data: ' . $xml, LOGGER_DATA);
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// if(! stristr($xml,'<?xml')) {
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// logger('pubsub_post: bad xml');
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// hub_post_return();
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// }
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$nick = (($a->argc > 1) ? notags(trim($a->argv[1])) : '');
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$contact_id = (($a->argc > 2) ? intval($a->argv[2]) : 0 );
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$r = q("SELECT * FROM `user` WHERE `nickname` = '%s' AND `account_expired` = 0 AND `account_removed` = 0 LIMIT 1",
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dbesc($nick)
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);
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if(! count($r))
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hub_post_return();
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$importer = $r[0];
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$r = q("SELECT * FROM `contact` WHERE `subhub` = 1 AND `id` = %d AND `uid` = %d
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AND ( `rel` = %d OR `rel` = %d ) AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
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intval($contact_id),
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intval($importer['uid']),
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intval(CONTACT_IS_SHARING),
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intval(CONTACT_IS_FRIEND)
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);
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if(! count($r)) {
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logger('pubsub: no contact record - ignored');
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hub_post_return();
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}
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$contact = $r[0];
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// we have no way to match Diaspora guid's with atom post id's and could get duplicates.
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// we'll assume that direct delivery is robust (and this is a bad assumption, but the duplicates are messy).
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if($r[0]['network'] === NETWORK_DIASPORA)
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hub_post_return();
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$feedhub = '';
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require_once('include/items.php');
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consume_feed($xml,$importer,$contact,$feedhub,1,1);
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// do it a second time so that any children find their parents.
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consume_feed($xml,$importer,$contact,$feedhub,1,2);
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hub_post_return();
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}
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