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<?php
function zperms_init(&$a) {
require_once('include/zot.php');
require_once('include/Contact.php');
require_once('include/crypto.php');
$ret = array('success' => false);
$zguid = ((x($_REQUEST,'guid')) ? $_REQUEST['guid'] : '');
$zaddr = ((x($_REQUEST,'address')) ? $_REQUEST['address'] : '');
$ztarget = ((x($_REQUEST,'target')) ? $_REQUEST['target'] : '');
$zsig = ((x($_REQUEST,'target_sig')) ? $_REQUEST['target_sig'] : '');
$r = null;
if(strlen($zguid)) {
$r = q("select * from channel where channel_guid = '%s' limit 1",
dbesc($zguid)
);
}
elseif(strlen($zaddr)) {
$r = q("select * from channel where channel_address = '%s' limit 1",
dbesc($zaddr)
);
}
else {
$ret['message'] = 'Invalid request';
json_return_and_die($ret);
}
if(! ($r && count($r))) {
$ret['message'] = 'Item not found.';
json_return_and_die($ret);
}
$e = $r[0];
$id = $e['channel_id'];
$r = q("select contact.*, profile.*
from contact left join profile on contact.uid = profile.uid
where contact.uid = %d && contact.self = 1 and profile.is_default = 1 limit 1",
intval($id)
);
if($r && count($r)) {
$profile = $r[0];
}
$ret['success'] = true;
$ret['guid'] = $e['channel_guid'];
$ret['guid_sig'] = base64url_encode(rsa_sign($e['channel_guid'],$e['channel_prvkey']));
$ret['key'] = $e['channel_pubkey'];
$ret['name'] = $e['channel_name'];
$ret['address'] = $e['channel_address'];
$ret['target'] = $ztarget;
$ret['target_sig'] = $zsig;
$ret['permissions'] = map_perms($r[0],$ztarget,$zsig);
$ret['profile'] = $profile;
// array of (verified) hubs this channel uses
$ret['hubs'] = array();
$x = zot_get_hubloc(array($e['channel_guid']));
if($x && count($x)) {
foreach($x as $hub) {
if(! ($hub['hubloc_flags'] & HUBLOC_FLAGS_UNVERIFIED)) {
$ret['hubs'][] = array(
'primary' => (($hub['hubloc_flags'] & HUBLOC_FLAGS_PRIMARY) ? true : false),
'url' => $hub['hubloc_url'],
/// hmmm we probably shouldn't sign somebody else's hub. FIXME
'url_sig' => base64url_encode(rsa_sign($hub['hubloc_url'],$e['channel_prvkey'])),
'callback' => $hub['hubloc_callback'],
'sitekey' => $hub['hubloc_sitekey']
);
}
}
}
json_return_and_die($ret);
}
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