Friendica Communications Platform
(please note that this is a clone of the repository at github, issues are handled there)
https://friendi.ca
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128 lines
3.2 KiB
128 lines
3.2 KiB
<?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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$r = q("SELECT * FROM `user` WHERE `nickname` = '%s' LIMIT 1", |
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dbesc($nick) |
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); |
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if(! count($r)) |
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hub_return(false, ''); |
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$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 `poll` = '%s' AND `id` = %d AND `uid` = %d AND `blocked` = 0 $sql_extra LIMIT 1", |
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dbesc($hub_topic), |
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intval($contact_id), |
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intval($owner['uid']) |
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); |
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if(! count($r)) |
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hub_return(false, ''); |
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$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') && (! strlen($hub_verify))) |
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hub_return(false, ''); |
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$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: ' . $xml, LOGGER_DATA); |
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$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' 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 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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); |
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if(! count($r)) |
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hub_post_return(); |
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$contact = $r[0]; |
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$feedhub = ''; |
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require_once('include/items.php'); |
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consume_feed($xml,$importer,$contact,$feedhub,1); |
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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); |
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hub_post_return(); |
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} |
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