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<?php
/**
* Zot endpoint
*/
require_once('include/zot.php');
function post_post(&$a) {
logger('mod_zot: ' . print_r($_REQUEST,true), LOGGER_DEBUG);
$ret = array('result' => false);
$data = json_decode($_REQUEST['data'],true);
logger('mod_zot: data: ' . print_r($data,true), LOGGER_DATA);
if(array_key_exists('iv',$data)) {
$data = aes_unencapsulate($data,get_config('system','prvkey'));
logger('mod_zot: decrypt1: ' . $data);
$data = json_decode($data,true);
}
logger('mod_zot: decoded data: ' . print_r($data,true), LOGGER_DATA);
$msgtype = ((array_key_exists('type',$data)) ? $data['type'] : '');
if($msgtype === 'pickup') {
if((! $data['secret']) || (! $data['secret_sig'])) {
$ret['message'] = 'no verification signature';
logger('mod_zot: pickup: ' . $ret['message']);
json_return_and_die($ret);
}
$r = q("select hubloc_sitekey from hubloc where hubloc_url = '%s' and hubloc_callback = '%s' and hubloc_sitekey != '' limit 1",
dbesc($data['url']),
dbesc($data['callback'])
);
if(! $r) {
$ret['message'] = 'site not found';
logger('mod_zot: pickup: ' . $ret['message']);
json_return_and_die($ret);
}
// verify the url_sig
$sitekey = $r[0]['hubloc_sitekey'];
logger('sitekey: ' . $sitekey);
if(! rsa_verify($data['callback'],base64url_decode($data['callback_sig']),$sitekey)) {
$ret['message'] = 'possible site forgery';
logger('mod_zot: pickup: ' . $ret['message']);
json_return_and_die($ret);
}
if(! rsa_verify($data['secret'],base64url_decode($data['secret_sig']),$sitekey)) {
$ret['message'] = 'secret validation failed';
logger('mod_zot: pickup: ' . $ret['message']);
json_return_and_die($ret);
}
// If we made it to here, we've got a valid pickup. Grab everything for this host and send it.
$r = q("select outq_posturl from outq where outq_hash = '%s' and outq_posturl = '%s' limit 1",
dbesc($data['secret']),
dbesc($data['callback'])
);
if(! $r) {
$ret['message'] = 'nothing to pick up';
logger('mod_zot: pickup: ' . $ret['message']);
json_return_and_die($ret);
}
$r = q("select * from outq where outq_posturl = '%s'",
dbesc($data['callback'])
);
if($r) {
$ret['success'] = true;
$ret['pickup'] = array();
foreach($r as $rr) {
$ret['pickup'][] = array('notify' => json_decode($rr['outq_notify'],true),'message' => json_decode($rr['outq_msg'],true));
$x = q("delete from outq where outq_hash = '%s' limit 1",
dbesc($rr['outq_hash'])
);
}
}
$encrypted = aes_encapsulate(json_encode($ret),$sitekey);
json_return_and_die($encrypted);
}
if(array_key_exists('sender',$data)) {
$sender = $data['sender'];
}
$hub = zot_gethub($sender);
if(! $hub) {
// (!!) this will validate the sender
$result = zot_register_hub($sender);
if((! $result['success']) || (! zot_gethub($sender))) {
$ret['message'] = 'Hub not available.';
logger('mod_zot: no hub');
json_return_and_die($ret);
}
}
// TODO: check which hub is primary and take action if mismatched
if(array_key_exists('recipients',$data))
$recipients = $data['recipients'];
if($msgtype === 'refresh') {
// remote channel info (such as permissions or photo or something)
// has been updated. Grab a fresh copy and sync it.
if($recipients) {
// This would be a permissions update, typically for one connection
foreach($recipients as $recip) {
$r = q("select channel.*,xchan.* from channel
left join xchan on channel_hash = xchan_hash
where channel_guid = '%s' and channel_guid_sig = '%s' limit 1",
dbesc($recip['guid']),
dbesc($recip['guid_sig'])
);
$x = zot_refresh(array(
'xchan_guid' => $sender['guid'],
'xchan_guid_sig' => $sender['guid_sig'],
'hubloc_url' => $sender['url']
),$r[0]);
}
}
else {
// system wide refresh
$x = zot_refresh(array(
'xchan_guid' => $sender['guid'],
'xchan_guid_sig' => $sender['guid_sig'],
'hubloc_url' => $sender['url']
),null);
}
$ret['result'] = true;
json_return_and_die($ret);
}
if($msgtype === 'notify') {
$async = get_config('system','queued_fetch');
if($async) {
// add to receive queue
// qreceive_add($data);
}
else {
$x = zot_fetch($data);
}
$ret['result'] = true;
json_return_and_die($ret);
}
}
|
